1 files changed, 135985 insertions, 0 deletions

diff --git a/3.14.45/4420_grsecurity-3.1-3.14.45-201506232103.patch b/3.14.45/4420_grsecurity-3.1-3.14.45-201506232103.patch
new file mode 100644
index 0000000..fe15fa1
--- /dev/null
+++ b/3.14.45/4420_grsecurity-3.1-3.14.45-201506232103.patch
@@ -0,0 +1,135985 @@
+diff --git a/Documentation/dontdiff b/Documentation/dontdiff
+index b89a739..e289b9b 100644
+--- a/Documentation/dontdiff
++++ b/Documentation/dontdiff
+@@ -2,9 +2,11 @@
+ *.aux
+ *.bin
+ *.bz2
++*.c.[012]*.*
+ *.cis
+ *.cpio
+ *.csp
++*.dbg
+ *.dsp
+ *.dvi
+ *.elf
+@@ -14,6 +16,7 @@
+ *.gcov
+ *.gen.S
+ *.gif
++*.gmo
+ *.grep
+ *.grp
+ *.gz
+@@ -48,14 +51,17 @@
+ *.tab.h
+ *.tex
+ *.ver
++*.vim
+ *.xml
+ *.xz
+ *_MODULES
++*_reg_safe.h
+ *_vga16.c
+ *~
+ \#*#
+ *.9
+-.*
++.[^g]*
++.gen*
+ .*.d
+ .mm
+ 53c700_d.h
+@@ -69,9 +75,11 @@ Image
+ Module.markers
+ Module.symvers
+ PENDING
++PERF*
+ SCCS
+ System.map*
+ TAGS
++TRACEEVENT-CFLAGS
+ aconf
+ af_names.h
+ aic7*reg.h*
+@@ -80,6 +88,7 @@ aic7*seq.h*
+ aicasm
+ aicdb.h*
+ altivec*.c
++ashldi3.S
+ asm-offsets.h
+ asm_offsets.h
+ autoconf.h*
+@@ -92,32 +101,40 @@ bounds.h
+ bsetup
+ btfixupprep
+ build
++builtin-policy.h
+ bvmlinux
+ bzImage*
+ capability_names.h
+ capflags.c
+ classlist.h*
++clut_vga16.c
++common-cmds.h
+ comp*.log
+ compile.h*
+ conf
+ config
+ config-*
+ config_data.h*
++config.c
+ config.mak
+ config.mak.autogen
++config.tmp
+ conmakehash
+ consolemap_deftbl.c*
+ cpustr.h
+ crc32table.h*
+ cscope.*
+ defkeymap.c
++devicetable-offsets.h
+ devlist.h*
+ dnotify_test
+ docproc
+ dslm
++dtc-lexer.lex.c
+ elf2ecoff
+ elfconfig.h*
+ evergreen_reg_safe.h
++exception_policy.conf
+ fixdep
+ flask.h
+ fore200e_mkfirm
+@@ -125,12 +142,15 @@ fore200e_pca_fw.c*
+ gconf
+ gconf.glade.h
+ gen-devlist
++gen-kdb_cmds.c
+ gen_crc32table
+ gen_init_cpio
+ generated
+ genheaders
+ genksyms
+ *_gray256.c
++hash
++hid-example
+ hpet_example
+ hugepage-mmap
+ hugepage-shm
+@@ -145,14 +165,14 @@ int32.c
+ int4.c
+ int8.c
+ kallsyms
+-kconfig
++kern_constants.h
+ keywords.c
+ ksym.c*
+ ksym.h*
+ kxgettext
+ lex.c
+ lex.*.c
+-linux
++lib1funcs.S
+ logo_*.c
+ logo_*_clut224.c
+ logo_*_mono.c
+@@ -162,14 +182,15 @@ mach-types.h
+ machtypes.h
+ map
+ map_hugetlb
+-media
+ mconf
++mdp
+ miboot*
+ mk_elfconfig
+ mkboot
+ mkbugboot
+ mkcpustr
+ mkdep
++mkpiggy
+ mkprep
+ mkregtable
+ mktables
+@@ -185,6 +206,8 @@ oui.c*
+ page-types
+ parse.c
+ parse.h
++parse-events*
++pasyms.h
+ patches*
+ pca200e.bin
+ pca200e_ecd.bin2
+@@ -194,6 +217,7 @@ perf-archive
+ piggyback
+ piggy.gzip
+ piggy.S
++pmu-*
+ pnmtologo
+ ppc_defs.h*
+ pss_boot.h
+@@ -203,7 +227,12 @@ r200_reg_safe.h
+ r300_reg_safe.h
+ r420_reg_safe.h
+ r600_reg_safe.h
++randomize_layout_hash.h
++randomize_layout_seed.h
++realmode.lds
++realmode.relocs
+ recordmcount
++regdb.c
+ relocs
+ rlim_names.h
+ rn50_reg_safe.h
+@@ -213,8 +242,12 @@ series
+ setup
+ setup.bin
+ setup.elf
++signing_key*
++size_overflow_hash.h
+ sImage
++slabinfo
+ sm_tbl*
++sortextable
+ split-include
+ syscalltab.h
+ tables.c
+@@ -224,6 +257,7 @@ tftpboot.img
+ timeconst.h
+ times.h*
+ trix_boot.h
++user_constants.h
+ utsrelease.h*
+ vdso-syms.lds
+ vdso.lds
+@@ -235,13 +269,17 @@ vdso32.lds
+ vdso32.so.dbg
+ vdso64.lds
+ vdso64.so.dbg
++vdsox32.lds
++vdsox32-syms.lds
+ version.h*
+ vmImage
+ vmlinux
+ vmlinux-*
+ vmlinux.aout
+ vmlinux.bin.all
++vmlinux.bin.bz2
+ vmlinux.lds
++vmlinux.relocs
+ vmlinuz
+ voffset.h
+ vsyscall.lds
+@@ -249,9 +287,12 @@ vsyscall_32.lds
+ wanxlfw.inc
+ uImage
+ unifdef
++utsrelease.h
+ wakeup.bin
+ wakeup.elf
+ wakeup.lds
++x509*
+ zImage*
+ zconf.hash.c
++zconf.lex.c
+ zoffset.h
+diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
+index 5d91ba1..ef1d374 100644
+--- a/Documentation/kernel-parameters.txt
++++ b/Documentation/kernel-parameters.txt
+@@ -1084,6 +1084,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
+ 			Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
+ 			Default: 1024
+ 
++	grsec_proc_gid= [GRKERNSEC_PROC_USERGROUP] Chooses GID to
++			ignore grsecurity's /proc restrictions
++
++	grsec_sysfs_restrict= Format: 0 | 1
++			Default: 1
++			Disables GRKERNSEC_SYSFS_RESTRICT if enabled in config
++
+ 	hashdist=	[KNL,NUMA] Large hashes allocated during boot
+ 			are distributed across NUMA nodes.  Defaults on
+ 			for 64-bit NUMA, off otherwise.
+@@ -2081,6 +2088,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
+ 			noexec=on: enable non-executable mappings (default)
+ 			noexec=off: disable non-executable mappings
+ 
++	nopcid		[X86-64]
++			Disable PCID (Process-Context IDentifier) even if it
++			is supported by the processor.
++
+ 	nosmap		[X86]
+ 			Disable SMAP (Supervisor Mode Access Prevention)
+ 			even if it is supported by processor.
+@@ -2348,6 +2359,30 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
+ 			the specified number of seconds.  This is to be used if
+ 			your oopses keep scrolling off the screen.
+ 
++	pax_nouderef	[X86] disables UDEREF.  Most likely needed under certain
++			virtualization environments that don't cope well with the
++			expand down segment used by UDEREF on X86-32 or the frequent
++			page table updates on X86-64.
++
++	pax_sanitize_slab=
++			Format: { 0 | 1 | off | fast | full }
++			Options '0' and '1' are only provided for backward
++			compatibility, 'off' or 'fast' should be used instead.
++			0|off : disable slab object sanitization
++			1|fast: enable slab object sanitization excluding
++				whitelisted slabs (default)
++			full  : sanitize all slabs, even the whitelisted ones
++
++	pax_softmode=	0/1 to disable/enable PaX softmode on boot already.
++
++	pax_extra_latent_entropy
++			Enable a very simple form of latent entropy extraction
++			from the first 4GB of memory as the bootmem allocator
++			passes the memory pages to the buddy allocator.
++
++	pax_weakuderef	[X86-64] enables the weaker but faster form of UDEREF
++			when the processor supports PCID.
++
+ 	pcbit=		[HW,ISDN]
+ 
+ 	pcd.		[PARIDE]
+diff --git a/Makefile b/Makefile
+index c92186c..a387fb0 100644
+--- a/Makefile
++++ b/Makefile
+@@ -244,8 +244,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
+ 
+ HOSTCC       = gcc
+ HOSTCXX      = g++
+-HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89
+-HOSTCXXFLAGS = -O2
++HOSTCFLAGS   = -Wall -W -Wmissing-prototypes -Wstrict-prototypes -Wno-unused-parameter -Wno-missing-field-initializers -O2 -fomit-frame-pointer -fno-delete-null-pointer-checks -std=gnu89
++HOSTCFLAGS  += $(call cc-option, -Wno-empty-body)
++HOSTCXXFLAGS = -O2 -Wall -W -Wno-array-bounds
+ 
+ # Decide whether to build built-in, modular, or both.
+ # Normally, just do built-in.
+@@ -425,8 +426,8 @@ export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
+ # Rules shared between *config targets and build targets
+ 
+ # Basic helpers built in scripts/
+-PHONY += scripts_basic
+-scripts_basic:
++PHONY += scripts_basic gcc-plugins
++scripts_basic: gcc-plugins
+ 	$(Q)$(MAKE) $(build)=scripts/basic
+ 	$(Q)rm -f .tmp_quiet_recordmcount
+ 
+@@ -587,6 +588,75 @@ else
+ KBUILD_CFLAGS	+= -O2
+ endif
+ 
++# Tell gcc to never replace conditional load with a non-conditional one
++KBUILD_CFLAGS	+= $(call cc-option,--param=allow-store-data-races=0)
++
++ifndef DISABLE_PAX_PLUGINS
++ifeq ($(call cc-ifversion, -ge, 0408, y), y)
++PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCXX)" "$(HOSTCXX)" "$(CC)")
++else
++PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(HOSTCC)" "$(HOSTCXX)" "$(CC)")
++endif
++ifneq ($(PLUGINCC),)
++ifdef CONFIG_PAX_CONSTIFY_PLUGIN
++CONSTIFY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/constify_plugin.so -DCONSTIFY_PLUGIN
++endif
++ifdef CONFIG_PAX_MEMORY_STACKLEAK
++STACKLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/stackleak_plugin.so -DSTACKLEAK_PLUGIN
++STACKLEAK_PLUGIN_CFLAGS += -fplugin-arg-stackleak_plugin-track-lowest-sp=100
++endif
++ifdef CONFIG_KALLOCSTAT_PLUGIN
++KALLOCSTAT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kallocstat_plugin.so
++endif
++ifdef CONFIG_PAX_KERNEXEC_PLUGIN
++KERNEXEC_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/kernexec_plugin.so
++KERNEXEC_PLUGIN_CFLAGS += -fplugin-arg-kernexec_plugin-method=$(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD) -DKERNEXEC_PLUGIN
++KERNEXEC_PLUGIN_AFLAGS := -DKERNEXEC_PLUGIN
++endif
++ifdef CONFIG_GRKERNSEC_RANDSTRUCT
++RANDSTRUCT_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/randomize_layout_plugin.so -DRANDSTRUCT_PLUGIN
++ifdef CONFIG_GRKERNSEC_RANDSTRUCT_PERFORMANCE
++RANDSTRUCT_PLUGIN_CFLAGS += -fplugin-arg-randomize_layout_plugin-performance-mode
++endif
++endif
++ifdef CONFIG_CHECKER_PLUGIN
++ifeq ($(call cc-ifversion, -ge, 0406, y), y)
++CHECKER_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/checker_plugin.so -DCHECKER_PLUGIN
++endif
++endif
++COLORIZE_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/colorize_plugin.so
++ifdef CONFIG_PAX_SIZE_OVERFLOW
++SIZE_OVERFLOW_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/size_overflow_plugin/size_overflow_plugin.so -DSIZE_OVERFLOW_PLUGIN
++endif
++ifdef CONFIG_PAX_LATENT_ENTROPY
++LATENT_ENTROPY_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/latent_entropy_plugin.so -DLATENT_ENTROPY_PLUGIN
++endif
++ifdef CONFIG_PAX_MEMORY_STRUCTLEAK
++STRUCTLEAK_PLUGIN_CFLAGS := -fplugin=$(objtree)/tools/gcc/structleak_plugin.so -DSTRUCTLEAK_PLUGIN
++endif
++GCC_PLUGINS_CFLAGS := $(CONSTIFY_PLUGIN_CFLAGS) $(STACKLEAK_PLUGIN_CFLAGS) $(KALLOCSTAT_PLUGIN_CFLAGS)
++GCC_PLUGINS_CFLAGS += $(KERNEXEC_PLUGIN_CFLAGS) $(CHECKER_PLUGIN_CFLAGS) $(COLORIZE_PLUGIN_CFLAGS)
++GCC_PLUGINS_CFLAGS += $(SIZE_OVERFLOW_PLUGIN_CFLAGS) $(LATENT_ENTROPY_PLUGIN_CFLAGS) $(STRUCTLEAK_PLUGIN_CFLAGS)
++GCC_PLUGINS_CFLAGS += $(RANDSTRUCT_PLUGIN_CFLAGS)
++GCC_PLUGINS_AFLAGS := $(KERNEXEC_PLUGIN_AFLAGS)
++export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGINS_AFLAGS CONSTIFY_PLUGIN LATENT_ENTROPY_PLUGIN_CFLAGS
++ifeq ($(KBUILD_EXTMOD),)
++gcc-plugins:
++	$(Q)$(MAKE) $(build)=tools/gcc
++else
++gcc-plugins: ;
++endif
++else
++gcc-plugins:
++ifeq ($(call cc-ifversion, -ge, 0405, y), y)
++	$(error Your gcc installation does not support plugins.  If the necessary headers for plugin support are missing, they should be installed.  On Debian, apt-get install gcc-<ver>-plugin-dev.  If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument.))
++else
++	$(Q)echo "warning, your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least"
++endif
++	$(Q)echo "PAX_MEMORY_STACKLEAK, constification, PAX_LATENT_ENTROPY and other features will be less secure.  PAX_SIZE_OVERFLOW will not be active."
++endif
++endif
++
+ include $(srctree)/arch/$(SRCARCH)/Makefile
+ 
+ ifdef CONFIG_READABLE_ASM
+@@ -783,7 +853,7 @@ export mod_sign_cmd
+ 
+ 
+ ifeq ($(KBUILD_EXTMOD),)
+-core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/
++core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/
+ 
+ vmlinux-dirs	:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
+ 		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
+@@ -832,6 +902,8 @@ endif
+ 
+ # The actual objects are generated when descending, 
+ # make sure no implicit rule kicks in
++$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++$(filter-out $(init-y),$(vmlinux-deps)): KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
+ 
+ # Handle descending into subdirectories listed in $(vmlinux-dirs)
+@@ -841,7 +913,7 @@ $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
+ # Error messages still appears in the original language
+ 
+ PHONY += $(vmlinux-dirs)
+-$(vmlinux-dirs): prepare scripts
++$(vmlinux-dirs): gcc-plugins prepare scripts
+ 	$(Q)$(MAKE) $(build)=$@
+ 
+ define filechk_kernel.release
+@@ -884,10 +956,13 @@ prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
+ 
+ archprepare: archheaders archscripts prepare1 scripts_basic
+ 
++prepare0: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++prepare0: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+ prepare0: archprepare FORCE
+ 	$(Q)$(MAKE) $(build)=.
+ 
+ # All the preparing..
++prepare: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
+ prepare: prepare0
+ 
+ # Generate some files
+@@ -995,6 +1070,8 @@ all: modules
+ #	using awk while concatenating to the final file.
+ 
+ PHONY += modules
++modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+ modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
+ 	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
+ 	@$(kecho) '  Building modules, stage 2.';
+@@ -1010,7 +1087,7 @@ modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
+ 
+ # Target to prepare building external modules
+ PHONY += modules_prepare
+-modules_prepare: prepare scripts
++modules_prepare: gcc-plugins prepare scripts
+ 
+ # Target to install modules
+ PHONY += modules_install
+@@ -1076,7 +1153,10 @@ MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
+ 		  Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
+ 		  signing_key.priv signing_key.x509 x509.genkey		\
+ 		  extra_certificates signing_key.x509.keyid		\
+-		  signing_key.x509.signer
++		  signing_key.x509.signer				\
++		  tools/gcc/size_overflow_plugin/size_overflow_hash_aux.h \
++		  tools/gcc/size_overflow_plugin/size_overflow_hash.h \
++		  tools/gcc/randomize_layout_seed.h
+ 
+ # clean - Delete most, but leave enough to build external modules
+ #
+@@ -1115,7 +1195,7 @@ distclean: mrproper
+ 	@find $(srctree) $(RCS_FIND_IGNORE) \
+ 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
+ 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
+-		-o -name '.*.rej' \
++		-o -name '.*.rej' -o -name '*.so' \
+ 		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
+ 		-type f -print | xargs rm -f
+ 
+@@ -1277,6 +1357,8 @@ PHONY += $(module-dirs) modules
+ $(module-dirs): crmodverdir $(objtree)/Module.symvers
+ 	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
+ 
++modules: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++modules: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
+ modules: $(module-dirs)
+ 	@$(kecho) '  Building modules, stage 2.';
+ 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
+@@ -1416,17 +1498,21 @@ else
+         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
+ endif
+ 
+-%.s: %.c prepare scripts FORCE
++%.s: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++%.s: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
++%.s: %.c gcc-plugins prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+ %.i: %.c prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+-%.o: %.c prepare scripts FORCE
++%.o: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++%.o: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
++%.o: %.c gcc-plugins prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+ %.lst: %.c prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+-%.s: %.S prepare scripts FORCE
++%.s: %.S gcc-plugins prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+-%.o: %.S prepare scripts FORCE
++%.o: %.S gcc-plugins prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+ %.symtypes: %.c prepare scripts FORCE
+ 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+@@ -1436,11 +1522,15 @@ endif
+ 	$(cmd_crmodverdir)
+ 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ 	$(build)=$(build-dir)
+-%/: prepare scripts FORCE
++%/: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++%/: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
++%/: gcc-plugins prepare scripts FORCE
+ 	$(cmd_crmodverdir)
+ 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ 	$(build)=$(build-dir)
+-%.ko: prepare scripts FORCE
++%.ko: KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS)
++%.ko: KBUILD_AFLAGS += $(GCC_PLUGINS_AFLAGS)
++%.ko: gcc-plugins prepare scripts FORCE
+ 	$(cmd_crmodverdir)
+ 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
+ 	$(build)=$(build-dir) $(@:.ko=.o)
+diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
+index 78b03ef..da28a51 100644
+--- a/arch/alpha/include/asm/atomic.h
++++ b/arch/alpha/include/asm/atomic.h
+@@ -292,6 +292,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
+ #define atomic_dec(v) atomic_sub(1,(v))
+ #define atomic64_dec(v) atomic64_sub(1,(v))
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ #define smp_mb__before_atomic_dec()	smp_mb()
+ #define smp_mb__after_atomic_dec()	smp_mb()
+ #define smp_mb__before_atomic_inc()	smp_mb()
+diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
+index ad368a9..fbe0f25 100644
+--- a/arch/alpha/include/asm/cache.h
++++ b/arch/alpha/include/asm/cache.h
+@@ -4,19 +4,19 @@
+ #ifndef __ARCH_ALPHA_CACHE_H
+ #define __ARCH_ALPHA_CACHE_H
+ 
++#include <linux/const.h>
+ 
+ /* Bytes per L1 (data) cache line. */
+ #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
+-# define L1_CACHE_BYTES     64
+ # define L1_CACHE_SHIFT     6
+ #else
+ /* Both EV4 and EV5 are write-through, read-allocate,
+    direct-mapped, physical.
+ */
+-# define L1_CACHE_BYTES     32
+ # define L1_CACHE_SHIFT     5
+ #endif
+ 
++#define L1_CACHE_BYTES     (_AC(1,UL) << L1_CACHE_SHIFT)
+ #define SMP_CACHE_BYTES    L1_CACHE_BYTES
+ 
+ #endif
+diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
+index 968d999..d36b2df 100644
+--- a/arch/alpha/include/asm/elf.h
++++ b/arch/alpha/include/asm/elf.h
+@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+ 
+ #define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL)
++
++#define PAX_DELTA_MMAP_LEN	(current->personality & ADDR_LIMIT_32BIT ? 14 : 28)
++#define PAX_DELTA_STACK_LEN	(current->personality & ADDR_LIMIT_32BIT ? 14 : 19)
++#endif
++
+ /* $0 is set by ld.so to a pointer to a function which might be 
+    registered using atexit.  This provides a mean for the dynamic
+    linker to call DT_FINI functions for shared libraries that have
+diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
+index aab14a0..b4fa3e7 100644
+--- a/arch/alpha/include/asm/pgalloc.h
++++ b/arch/alpha/include/asm/pgalloc.h
+@@ -29,6 +29,12 @@ pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+ 	pgd_set(pgd, pmd);
+ }
+ 
++static inline void
++pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
++{
++	pgd_populate(mm, pgd, pmd);
++}
++
+ extern pgd_t *pgd_alloc(struct mm_struct *mm);
+ 
+ static inline void
+diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
+index d8f9b7e..f6222fa 100644
+--- a/arch/alpha/include/asm/pgtable.h
++++ b/arch/alpha/include/asm/pgtable.h
+@@ -102,6 +102,17 @@ struct vm_area_struct;
+ #define PAGE_SHARED	__pgprot(_PAGE_VALID | __ACCESS_BITS)
+ #define PAGE_COPY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+ #define PAGE_READONLY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++# define PAGE_SHARED_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE)
++# define PAGE_COPY_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
++# define PAGE_READONLY_NOEXEC	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE)
++#else
++# define PAGE_SHARED_NOEXEC	PAGE_SHARED
++# define PAGE_COPY_NOEXEC	PAGE_COPY
++# define PAGE_READONLY_NOEXEC	PAGE_READONLY
++#endif
++
+ #define PAGE_KERNEL	__pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
+ 
+ #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
+diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c
+index 2fd00b7..cfd5069 100644
+--- a/arch/alpha/kernel/module.c
++++ b/arch/alpha/kernel/module.c
+@@ -160,7 +160,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab,
+ 
+ 	/* The small sections were sorted to the end of the segment.
+ 	   The following should definitely cover them.  */
+-	gp = (u64)me->module_core + me->core_size - 0x8000;
++	gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000;
+ 	got = sechdrs[me->arch.gotsecindex].sh_addr;
+ 
+ 	for (i = 0; i < n; i++) {
+diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
+index 1402fcc..0b1abd2 100644
+--- a/arch/alpha/kernel/osf_sys.c
++++ b/arch/alpha/kernel/osf_sys.c
+@@ -1298,10 +1298,11 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p)
+    generic version except that we know how to honor ADDR_LIMIT_32BIT.  */
+ 
+ static unsigned long
+-arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
+-		         unsigned long limit)
++arch_get_unmapped_area_1(struct file *filp, unsigned long addr, unsigned long len,
++		         unsigned long limit, unsigned long flags)
+ {
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
+ 
+ 	info.flags = 0;
+ 	info.length = len;
+@@ -1309,6 +1310,7 @@ arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
+ 	info.high_limit = limit;
+ 	info.align_mask = 0;
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+@@ -1341,20 +1343,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	   merely specific addresses, but regions of memory -- perhaps
+ 	   this feature should be incorporated into all ports?  */
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+-		addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit);
++		addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(addr), len, limit, flags);
+ 		if (addr != (unsigned long) -ENOMEM)
+ 			return addr;
+ 	}
+ 
+ 	/* Next, try allocating at TASK_UNMAPPED_BASE.  */
+-	addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE),
+-					 len, limit);
++	addr = arch_get_unmapped_area_1 (filp, PAGE_ALIGN(current->mm->mmap_base), len, limit, flags);
++
+ 	if (addr != (unsigned long) -ENOMEM)
+ 		return addr;
+ 
+ 	/* Finally, try allocating in low memory.  */
+-	addr = arch_get_unmapped_area_1 (PAGE_SIZE, len, limit);
++	addr = arch_get_unmapped_area_1 (filp, PAGE_SIZE, len, limit, flags);
+ 
+ 	return addr;
+ }
+diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
+index 9d0ac09..479a962 100644
+--- a/arch/alpha/mm/fault.c
++++ b/arch/alpha/mm/fault.c
+@@ -53,6 +53,124 @@ __load_new_mm_context(struct mm_struct *next_mm)
+ 	__reload_thread(pcb);
+ }
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++/*
++ * PaX: decide what to do with offenders (regs->pc = fault address)
++ *
++ * returns 1 when task should be killed
++ *         2 when patched PLT trampoline was detected
++ *         3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++	int err;
++
++	do { /* PaX: patched PLT emulation #1 */
++		unsigned int ldah, ldq, jmp;
++
++		err = get_user(ldah, (unsigned int *)regs->pc);
++		err |= get_user(ldq, (unsigned int *)(regs->pc+4));
++		err |= get_user(jmp, (unsigned int *)(regs->pc+8));
++
++		if (err)
++			break;
++
++		if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
++		    (ldq & 0xFFFF0000U) == 0xA77B0000U &&
++		    jmp == 0x6BFB0000U)
++		{
++			unsigned long r27, addr;
++			unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
++			unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL;
++
++			addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
++			err = get_user(r27, (unsigned long *)addr);
++			if (err)
++				break;
++
++			regs->r27 = r27;
++			regs->pc = r27;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #2 */
++		unsigned int ldah, lda, br;
++
++		err = get_user(ldah, (unsigned int *)regs->pc);
++		err |= get_user(lda, (unsigned int *)(regs->pc+4));
++		err |= get_user(br, (unsigned int *)(regs->pc+8));
++
++		if (err)
++			break;
++
++		if ((ldah & 0xFFFF0000U) == 0x277B0000U &&
++		    (lda & 0xFFFF0000U) == 0xA77B0000U &&
++		    (br & 0xFFE00000U) == 0xC3E00000U)
++		{
++			unsigned long addr = br | 0xFFFFFFFFFFE00000UL;
++			unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16;
++			unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL;
++
++			regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL);
++			regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: unpatched PLT emulation */
++		unsigned int br;
++
++		err = get_user(br, (unsigned int *)regs->pc);
++
++		if (!err && (br & 0xFFE00000U) == 0xC3800000U) {
++			unsigned int br2, ldq, nop, jmp;
++			unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver;
++
++			addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2);
++			err = get_user(br2, (unsigned int *)addr);
++			err |= get_user(ldq, (unsigned int *)(addr+4));
++			err |= get_user(nop, (unsigned int *)(addr+8));
++			err |= get_user(jmp, (unsigned int *)(addr+12));
++			err |= get_user(resolver, (unsigned long *)(addr+16));
++
++			if (err)
++				break;
++
++			if (br2 == 0xC3600000U &&
++			    ldq == 0xA77B000CU &&
++			    nop == 0x47FF041FU &&
++			    jmp == 0x6B7B0000U)
++			{
++				regs->r28 = regs->pc+4;
++				regs->r27 = addr+16;
++				regs->pc = resolver;
++				return 3;
++			}
++		}
++	} while (0);
++#endif
++
++	return 1;
++}
++
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 5; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
+ 
+ /*
+  * This routine handles page faults.  It determines the address,
+@@ -133,8 +251,29 @@ retry:
+  good_area:
+ 	si_code = SEGV_ACCERR;
+ 	if (cause < 0) {
+-		if (!(vma->vm_flags & VM_EXEC))
++		if (!(vma->vm_flags & VM_EXEC)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc)
++				goto bad_area;
++
++			up_read(&mm->mmap_sem);
++			switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++			case 2:
++			case 3:
++				return;
++#endif
++
++			}
++			pax_report_fault(regs, (void *)regs->pc, (void *)rdusp());
++			do_group_exit(SIGKILL);
++#else
+ 			goto bad_area;
++#endif
++
++		}
+ 	} else if (!cause) {
+ 		/* Allow reads even for write-only mappings */
+ 		if (!(vma->vm_flags & (VM_READ | VM_WRITE)))
+diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
+index a2ff5c5..ecf6a78 100644
+--- a/arch/arc/kernel/kgdb.c
++++ b/arch/arc/kernel/kgdb.c
+@@ -158,11 +158,6 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
+ 	return -1;
+ }
+ 
+-unsigned long kgdb_arch_pc(int exception, struct pt_regs *regs)
+-{
+-	return instruction_pointer(regs);
+-}
+-
+ int kgdb_arch_init(void)
+ {
+ 	single_step_data.armed = 0;
+diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
+index 4733d32..b142a40 100644
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -1863,7 +1863,7 @@ config ALIGNMENT_TRAP
+ 
+ config UACCESS_WITH_MEMCPY
+ 	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
+-	depends on MMU
++	depends on MMU && !PAX_MEMORY_UDEREF
+ 	default y if CPU_FEROCEON
+ 	help
+ 	  Implement faster copy_to_user and clear_user methods for CPU
+@@ -2126,6 +2126,7 @@ config XIP_PHYS_ADDR
+ config KEXEC
+ 	bool "Kexec system call (EXPERIMENTAL)"
+ 	depends on (!SMP || PM_SLEEP_SMP)
++	depends on !GRKERNSEC_KMEM
+ 	help
+ 	  kexec is a system call that implements the ability to shutdown your
+ 	  current kernel, and to start another kernel.  It is like a reboot
+diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
+index 62d2cb5..26a6f3c 100644
+--- a/arch/arm/include/asm/atomic.h
++++ b/arch/arm/include/asm/atomic.h
+@@ -18,17 +18,41 @@
+ #include <asm/barrier.h>
+ #include <asm/cmpxchg.h>
+ 
++#ifdef CONFIG_GENERIC_ATOMIC64
++#include <asm-generic/atomic64.h>
++#endif
++
+ #define ATOMIC_INIT(i)	{ (i) }
+ 
+ #ifdef __KERNEL__
+ 
++#ifdef CONFIG_THUMB2_KERNEL
++#define REFCOUNT_TRAP_INSN "bkpt	0xf1"
++#else
++#define REFCOUNT_TRAP_INSN "bkpt	0xf103"
++#endif
++
++#define _ASM_EXTABLE(from, to)		\
++"	.pushsection __ex_table,\"a\"\n"\
++"	.align	3\n"			\
++"	.long	" #from ", " #to"\n"	\
++"	.popsection"
++
+ /*
+  * On ARM, ordinary assignment (str instruction) doesn't clear the local
+  * strex/ldrex monitor on some implementations. The reason we can use it for
+  * atomic_set() is the clrex or dummy strex done on every exception return.
+  */
+ #define atomic_read(v)	(*(volatile int *)&(v)->counter)
++static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
++{
++	return *(const volatile int *)&v->counter;
++}
+ #define atomic_set(v,i)	(((v)->counter) = (i))
++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
++{
++	v->counter = i;
++}
+ 
+ #if __LINUX_ARM_ARCH__ >= 6
+ 
+@@ -44,6 +68,36 @@ static inline void atomic_add(int i, atomic_t *v)
+ 
+ 	prefetchw(&v->counter);
+ 	__asm__ __volatile__("@ atomic_add\n"
++"1:	ldrex	%1, [%3]\n"
++"	adds	%0, %1, %4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
++"	strex	%1, %0, [%3]\n"
++"	teq	%1, #0\n"
++"	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
++	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
++	: "r" (&v->counter), "Ir" (i)
++	: "cc");
++}
++
++static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
++{
++	unsigned long tmp;
++	int result;
++
++	prefetchw(&v->counter);
++	__asm__ __volatile__("@ atomic_add_unchecked\n"
+ "1:	ldrex	%0, [%3]\n"
+ "	add	%0, %0, %4\n"
+ "	strex	%1, %0, [%3]\n"
+@@ -62,6 +116,42 @@ static inline int atomic_add_return(int i, atomic_t *v)
+ 	smp_mb();
+ 
+ 	__asm__ __volatile__("@ atomic_add_return\n"
++"1:	ldrex	%1, [%3]\n"
++"	adds	%0, %1, %4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"	mov	%0, %1\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
++"	strex	%1, %0, [%3]\n"
++"	teq	%1, #0\n"
++"	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
++	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
++	: "r" (&v->counter), "Ir" (i)
++	: "cc");
++
++	smp_mb();
++
++	return result;
++}
++
++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
++{
++	unsigned long tmp;
++	int result;
++
++	smp_mb();
++
++	__asm__ __volatile__("@ atomic_add_return_unchecked\n"
+ "1:	ldrex	%0, [%3]\n"
+ "	add	%0, %0, %4\n"
+ "	strex	%1, %0, [%3]\n"
+@@ -83,6 +173,36 @@ static inline void atomic_sub(int i, atomic_t *v)
+ 
+ 	prefetchw(&v->counter);
+ 	__asm__ __volatile__("@ atomic_sub\n"
++"1:	ldrex	%1, [%3]\n"
++"	subs	%0, %1, %4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
++"	strex	%1, %0, [%3]\n"
++"	teq	%1, #0\n"
++"	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
++	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
++	: "r" (&v->counter), "Ir" (i)
++	: "cc");
++}
++
++static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
++{
++	unsigned long tmp;
++	int result;
++
++	prefetchw(&v->counter);
++	__asm__ __volatile__("@ atomic_sub_unchecked\n"
+ "1:	ldrex	%0, [%3]\n"
+ "	sub	%0, %0, %4\n"
+ "	strex	%1, %0, [%3]\n"
+@@ -101,11 +221,25 @@ static inline int atomic_sub_return(int i, atomic_t *v)
+ 	smp_mb();
+ 
+ 	__asm__ __volatile__("@ atomic_sub_return\n"
+-"1:	ldrex	%0, [%3]\n"
+-"	sub	%0, %0, %4\n"
++"1:	ldrex	%1, [%3]\n"
++"	subs	%0, %1, %4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"	mov	%0, %1\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
+ "	strex	%1, %0, [%3]\n"
+ "	teq	%1, #0\n"
+ "	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
+ 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ 	: "r" (&v->counter), "Ir" (i)
+ 	: "cc");
+@@ -138,6 +272,28 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
+ 	return oldval;
+ }
+ 
++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *ptr, int old, int new)
++{
++	unsigned long oldval, res;
++
++	smp_mb();
++
++	do {
++		__asm__ __volatile__("@ atomic_cmpxchg_unchecked\n"
++		"ldrex	%1, [%3]\n"
++		"mov	%0, #0\n"
++		"teq	%1, %4\n"
++		"strexeq %0, %5, [%3]\n"
++		    : "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
++		    : "r" (&ptr->counter), "Ir" (old), "r" (new)
++		    : "cc");
++	} while (res);
++
++	smp_mb();
++
++	return oldval;
++}
++
+ #else /* ARM_ARCH_6 */
+ 
+ #ifdef CONFIG_SMP
+@@ -156,7 +312,17 @@ static inline int atomic_add_return(int i, atomic_t *v)
+ 
+ 	return val;
+ }
++
++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
++{
++	return atomic_add_return(i, v);
++}
++
+ #define atomic_add(i, v)	(void) atomic_add_return(i, v)
++static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
++{
++	(void) atomic_add_return(i, v);
++}
+ 
+ static inline int atomic_sub_return(int i, atomic_t *v)
+ {
+@@ -171,6 +337,10 @@ static inline int atomic_sub_return(int i, atomic_t *v)
+ 	return val;
+ }
+ #define atomic_sub(i, v)	(void) atomic_sub_return(i, v)
++static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
++{
++	(void) atomic_sub_return(i, v);
++}
+ 
+ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+ {
+@@ -186,9 +356,18 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+ 	return ret;
+ }
+ 
++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
++{
++	return atomic_cmpxchg(v, old, new);
++}
++
+ #endif /* __LINUX_ARM_ARCH__ */
+ 
+ #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
++{
++	return xchg(&v->counter, new);
++}
+ 
+ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+ {
+@@ -201,11 +380,27 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+ }
+ 
+ #define atomic_inc(v)		atomic_add(1, v)
++static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
++{
++	atomic_add_unchecked(1, v);
++}
+ #define atomic_dec(v)		atomic_sub(1, v)
++static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
++{
++	atomic_sub_unchecked(1, v);
++}
+ 
+ #define atomic_inc_and_test(v)	(atomic_add_return(1, v) == 0)
++static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_add_return_unchecked(1, v) == 0;
++}
+ #define atomic_dec_and_test(v)	(atomic_sub_return(1, v) == 0)
+ #define atomic_inc_return(v)    (atomic_add_return(1, v))
++static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_add_return_unchecked(1, v);
++}
+ #define atomic_dec_return(v)    (atomic_sub_return(1, v))
+ #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
+ 
+@@ -221,6 +416,14 @@ typedef struct {
+ 	long long counter;
+ } atomic64_t;
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++typedef struct {
++	long long counter;
++} atomic64_unchecked_t;
++#else
++typedef atomic64_t atomic64_unchecked_t;
++#endif
++
+ #define ATOMIC64_INIT(i) { (i) }
+ 
+ #ifdef CONFIG_ARM_LPAE
+@@ -237,6 +440,19 @@ static inline long long atomic64_read(const atomic64_t *v)
+ 	return result;
+ }
+ 
++static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
++{
++	long long result;
++
++	__asm__ __volatile__("@ atomic64_read_unchecked\n"
++"	ldrd	%0, %H0, [%1]"
++	: "=&r" (result)
++	: "r" (&v->counter), "Qo" (v->counter)
++	);
++
++	return result;
++}
++
+ static inline void atomic64_set(atomic64_t *v, long long i)
+ {
+ 	__asm__ __volatile__("@ atomic64_set\n"
+@@ -245,6 +461,15 @@ static inline void atomic64_set(atomic64_t *v, long long i)
+ 	: "r" (&v->counter), "r" (i)
+ 	);
+ }
++
++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
++{
++	__asm__ __volatile__("@ atomic64_set_unchecked\n"
++"	strd	%2, %H2, [%1]"
++	: "=Qo" (v->counter)
++	: "r" (&v->counter), "r" (i)
++	);
++}
+ #else
+ static inline long long atomic64_read(const atomic64_t *v)
+ {
+@@ -259,6 +484,19 @@ static inline long long atomic64_read(const atomic64_t *v)
+ 	return result;
+ }
+ 
++static inline long long atomic64_read_unchecked(const atomic64_unchecked_t *v)
++{
++	long long result;
++
++	__asm__ __volatile__("@ atomic64_read_unchecked\n"
++"	ldrexd	%0, %H0, [%1]"
++	: "=&r" (result)
++	: "r" (&v->counter), "Qo" (v->counter)
++	);
++
++	return result;
++}
++
+ static inline void atomic64_set(atomic64_t *v, long long i)
+ {
+ 	long long tmp;
+@@ -273,6 +511,21 @@ static inline void atomic64_set(atomic64_t *v, long long i)
+ 	: "r" (&v->counter), "r" (i)
+ 	: "cc");
+ }
++
++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
++{
++	long long tmp;
++
++	prefetchw(&v->counter);
++	__asm__ __volatile__("@ atomic64_set_unchecked\n"
++"1:	ldrexd	%0, %H0, [%2]\n"
++"	strexd	%0, %3, %H3, [%2]\n"
++"	teq	%0, #0\n"
++"	bne	1b"
++	: "=&r" (tmp), "=Qo" (v->counter)
++	: "r" (&v->counter), "r" (i)
++	: "cc");
++}
+ #endif
+ 
+ static inline void atomic64_add(long long i, atomic64_t *v)
+@@ -284,6 +537,37 @@ static inline void atomic64_add(long long i, atomic64_t *v)
+ 	__asm__ __volatile__("@ atomic64_add\n"
+ "1:	ldrexd	%0, %H0, [%3]\n"
+ "	adds	%Q0, %Q0, %Q4\n"
++"	adcs	%R0, %R0, %R4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
++"	strexd	%1, %0, %H0, [%3]\n"
++"	teq	%1, #0\n"
++"	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
++	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
++	: "r" (&v->counter), "r" (i)
++	: "cc");
++}
++
++static inline void atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
++{
++	long long result;
++	unsigned long tmp;
++
++	prefetchw(&v->counter);
++	__asm__ __volatile__("@ atomic64_add_unchecked\n"
++"1:	ldrexd	%0, %H0, [%3]\n"
++"	adds	%Q0, %Q0, %Q4\n"
+ "	adc	%R0, %R0, %R4\n"
+ "	strexd	%1, %0, %H0, [%3]\n"
+ "	teq	%1, #0\n"
+@@ -303,6 +587,44 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
+ 	__asm__ __volatile__("@ atomic64_add_return\n"
+ "1:	ldrexd	%0, %H0, [%3]\n"
+ "	adds	%Q0, %Q0, %Q4\n"
++"	adcs	%R0, %R0, %R4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"	mov	%0, %1\n"
++"	mov	%H0, %H1\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
++"	strexd	%1, %0, %H0, [%3]\n"
++"	teq	%1, #0\n"
++"	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
++	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
++	: "r" (&v->counter), "r" (i)
++	: "cc");
++
++	smp_mb();
++
++	return result;
++}
++
++static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
++{
++	long long result;
++	unsigned long tmp;
++
++	smp_mb();
++
++	__asm__ __volatile__("@ atomic64_add_return_unchecked\n"
++"1:	ldrexd	%0, %H0, [%3]\n"
++"	adds	%Q0, %Q0, %Q4\n"
+ "	adc	%R0, %R0, %R4\n"
+ "	strexd	%1, %0, %H0, [%3]\n"
+ "	teq	%1, #0\n"
+@@ -325,6 +647,37 @@ static inline void atomic64_sub(long long i, atomic64_t *v)
+ 	__asm__ __volatile__("@ atomic64_sub\n"
+ "1:	ldrexd	%0, %H0, [%3]\n"
+ "	subs	%Q0, %Q0, %Q4\n"
++"	sbcs	%R0, %R0, %R4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
++"	strexd	%1, %0, %H0, [%3]\n"
++"	teq	%1, #0\n"
++"	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
++	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
++	: "r" (&v->counter), "r" (i)
++	: "cc");
++}
++
++static inline void atomic64_sub_unchecked(long long i, atomic64_unchecked_t *v)
++{
++	long long result;
++	unsigned long tmp;
++
++	prefetchw(&v->counter);
++	__asm__ __volatile__("@ atomic64_sub_unchecked\n"
++"1:	ldrexd	%0, %H0, [%3]\n"
++"	subs	%Q0, %Q0, %Q4\n"
+ "	sbc	%R0, %R0, %R4\n"
+ "	strexd	%1, %0, %H0, [%3]\n"
+ "	teq	%1, #0\n"
+@@ -344,10 +697,25 @@ static inline long long atomic64_sub_return(long long i, atomic64_t *v)
+ 	__asm__ __volatile__("@ atomic64_sub_return\n"
+ "1:	ldrexd	%0, %H0, [%3]\n"
+ "	subs	%Q0, %Q0, %Q4\n"
+-"	sbc	%R0, %R0, %R4\n"
++"	sbcs	%R0, %R0, %R4\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"	mov	%0, %1\n"
++"	mov	%H0, %H1\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
+ "	strexd	%1, %0, %H0, [%3]\n"
+ "	teq	%1, #0\n"
+ "	bne	1b"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"\n4:\n"
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
+ 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ 	: "r" (&v->counter), "r" (i)
+ 	: "cc");
+@@ -382,6 +750,31 @@ static inline long long atomic64_cmpxchg(atomic64_t *ptr, long long old,
+ 	return oldval;
+ }
+ 
++static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *ptr, long long old,
++					long long new)
++{
++	long long oldval;
++	unsigned long res;
++
++	smp_mb();
++
++	do {
++		__asm__ __volatile__("@ atomic64_cmpxchg_unchecked\n"
++		"ldrexd		%1, %H1, [%3]\n"
++		"mov		%0, #0\n"
++		"teq		%1, %4\n"
++		"teqeq		%H1, %H4\n"
++		"strexdeq	%0, %5, %H5, [%3]"
++		: "=&r" (res), "=&r" (oldval), "+Qo" (ptr->counter)
++		: "r" (&ptr->counter), "r" (old), "r" (new)
++		: "cc");
++	} while (res);
++
++	smp_mb();
++
++	return oldval;
++}
++
+ static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
+ {
+ 	long long result;
+@@ -406,20 +799,34 @@ static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
+ static inline long long atomic64_dec_if_positive(atomic64_t *v)
+ {
+ 	long long result;
+-	unsigned long tmp;
++	u64 tmp;
+ 
+ 	smp_mb();
+ 
+ 	__asm__ __volatile__("@ atomic64_dec_if_positive\n"
+-"1:	ldrexd	%0, %H0, [%3]\n"
+-"	subs	%Q0, %Q0, #1\n"
+-"	sbc	%R0, %R0, #0\n"
++"1:	ldrexd	%1, %H1, [%3]\n"
++"	subs	%Q0, %Q1, #1\n"
++"	sbcs	%R0, %R1, #0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"	mov	%Q0, %Q1\n"
++"	mov	%R0, %R1\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
+ "	teq	%R0, #0\n"
+-"	bmi	2f\n"
++"	bmi	4f\n"
+ "	strexd	%1, %0, %H0, [%3]\n"
+ "	teq	%1, #0\n"
+ "	bne	1b\n"
+-"2:"
++"4:\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
+ 	: "=&r" (result), "=&r" (tmp), "+Qo" (v->counter)
+ 	: "r" (&v->counter)
+ 	: "cc");
+@@ -442,13 +849,25 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
+ "	teq	%0, %5\n"
+ "	teqeq	%H0, %H5\n"
+ "	moveq	%1, #0\n"
+-"	beq	2f\n"
++"	beq	4f\n"
+ "	adds	%Q0, %Q0, %Q6\n"
+-"	adc	%R0, %R0, %R6\n"
++"	adcs	%R0, %R0, %R6\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	bvc	3f\n"
++"2:	" REFCOUNT_TRAP_INSN "\n"
++"3:\n"
++#endif
++
+ "	strexd	%2, %0, %H0, [%4]\n"
+ "	teq	%2, #0\n"
+ "	bne	1b\n"
+-"2:"
++"4:\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++	_ASM_EXTABLE(2b, 4b)
++#endif
++
+ 	: "=&r" (val), "+r" (ret), "=&r" (tmp), "+Qo" (v->counter)
+ 	: "r" (&v->counter), "r" (u), "r" (a)
+ 	: "cc");
+@@ -461,10 +880,13 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
+ 
+ #define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
+ #define atomic64_inc(v)			atomic64_add(1LL, (v))
++#define atomic64_inc_unchecked(v)	atomic64_add_unchecked(1LL, (v))
+ #define atomic64_inc_return(v)		atomic64_add_return(1LL, (v))
++#define atomic64_inc_return_unchecked(v)	atomic64_add_return_unchecked(1LL, (v))
+ #define atomic64_inc_and_test(v)	(atomic64_inc_return(v) == 0)
+ #define atomic64_sub_and_test(a, v)	(atomic64_sub_return((a), (v)) == 0)
+ #define atomic64_dec(v)			atomic64_sub(1LL, (v))
++#define atomic64_dec_unchecked(v)	atomic64_sub_unchecked(1LL, (v))
+ #define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
+ #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
+ #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
+diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h
+index 2f59f74..1594659 100644
+--- a/arch/arm/include/asm/barrier.h
++++ b/arch/arm/include/asm/barrier.h
+@@ -63,7 +63,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	smp_mb();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
+index 75fe66b..ba3dee4 100644
+--- a/arch/arm/include/asm/cache.h
++++ b/arch/arm/include/asm/cache.h
+@@ -4,8 +4,10 @@
+ #ifndef __ASMARM_CACHE_H
+ #define __ASMARM_CACHE_H
+ 
++#include <linux/const.h>
++
+ #define L1_CACHE_SHIFT		CONFIG_ARM_L1_CACHE_SHIFT
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ /*
+  * Memory returned by kmalloc() may be used for DMA, so we must make
+@@ -24,5 +26,6 @@
+ #endif
+ 
+ #define __read_mostly __attribute__((__section__(".data..read_mostly")))
++#define __read_only __attribute__ ((__section__(".data..read_only")))
+ 
+ #endif
+diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
+index 8b8b616..d973d24 100644
+--- a/arch/arm/include/asm/cacheflush.h
++++ b/arch/arm/include/asm/cacheflush.h
+@@ -116,7 +116,7 @@ struct cpu_cache_fns {
+ 	void (*dma_unmap_area)(const void *, size_t, int);
+ 
+ 	void (*dma_flush_range)(const void *, const void *);
+-};
++} __no_const;
+ 
+ /*
+  * Select the calling method
+diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h
+index 5233151..87a71fa 100644
+--- a/arch/arm/include/asm/checksum.h
++++ b/arch/arm/include/asm/checksum.h
+@@ -37,7 +37,19 @@ __wsum
+ csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
+ 
+ __wsum
+-csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
++__csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr);
++
++static inline __wsum
++csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *err_ptr)
++{
++	__wsum ret;
++	pax_open_userland();
++	ret = __csum_partial_copy_from_user(src, dst, len, sum, err_ptr);
++	pax_close_userland();
++	return ret;
++}
++
++
+ 
+ /*
+  * 	Fold a partial checksum without adding pseudo headers
+diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
+index df2fbba..63fe3e1 100644
+--- a/arch/arm/include/asm/cmpxchg.h
++++ b/arch/arm/include/asm/cmpxchg.h
+@@ -102,6 +102,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
+ 
+ #define xchg(ptr,x) \
+ 	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
++#define xchg_unchecked(ptr,x) \
++	((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+ 
+ #include <asm-generic/cmpxchg-local.h>
+ 
+diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h
+index 6ddbe44..b5e38b1a 100644
+--- a/arch/arm/include/asm/domain.h
++++ b/arch/arm/include/asm/domain.h
+@@ -48,18 +48,37 @@
+  * Domain types
+  */
+ #define DOMAIN_NOACCESS	0
+-#define DOMAIN_CLIENT	1
+ #ifdef CONFIG_CPU_USE_DOMAINS
++#define DOMAIN_USERCLIENT	1
++#define DOMAIN_KERNELCLIENT	1
+ #define DOMAIN_MANAGER	3
++#define DOMAIN_VECTORS		DOMAIN_USER
+ #else
++
++#ifdef CONFIG_PAX_KERNEXEC
+ #define DOMAIN_MANAGER	1
++#define DOMAIN_KERNEXEC	3
++#else
++#define DOMAIN_MANAGER	1
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++#define DOMAIN_USERCLIENT	0
++#define DOMAIN_UDEREF		1
++#define DOMAIN_VECTORS		DOMAIN_KERNEL
++#else
++#define DOMAIN_USERCLIENT	1
++#define DOMAIN_VECTORS		DOMAIN_USER
++#endif
++#define DOMAIN_KERNELCLIENT	1
++
+ #endif
+ 
+ #define domain_val(dom,type)	((type) << (2*(dom)))
+ 
+ #ifndef __ASSEMBLY__
+ 
+-#ifdef CONFIG_CPU_USE_DOMAINS
++#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+ static inline void set_domain(unsigned val)
+ {
+ 	asm volatile(
+@@ -68,15 +87,7 @@ static inline void set_domain(unsigned val)
+ 	isb();
+ }
+ 
+-#define modify_domain(dom,type)					\
+-	do {							\
+-	struct thread_info *thread = current_thread_info();	\
+-	unsigned int domain = thread->cpu_domain;		\
+-	domain &= ~domain_val(dom, DOMAIN_MANAGER);		\
+-	thread->cpu_domain = domain | domain_val(dom, type);	\
+-	set_domain(thread->cpu_domain);				\
+-	} while (0)
+-
++extern void modify_domain(unsigned int dom, unsigned int type);
+ #else
+ static inline void set_domain(unsigned val) { }
+ static inline void modify_domain(unsigned dom, unsigned type)	{ }
+diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
+index 051b726..abc9b2b 100644
+--- a/arch/arm/include/asm/elf.h
++++ b/arch/arm/include/asm/elf.h
+@@ -114,7 +114,14 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
+    the loader.  We need to make sure that it is out of the way of the program
+    that it will "exec", and that there is sufficient room for the brk.  */
+ 
+-#define ELF_ET_DYN_BASE	(TASK_SIZE / 3 * 2)
++#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
++
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	0x00008000UL
++
++#define PAX_DELTA_MMAP_LEN	((current->personality == PER_LINUX_32BIT) ? 16 : 10)
++#define PAX_DELTA_STACK_LEN	((current->personality == PER_LINUX_32BIT) ? 16 : 10)
++#endif
+ 
+ /* When the program starts, a1 contains a pointer to a function to be 
+    registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
+@@ -124,10 +131,6 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
+ extern void elf_set_personality(const struct elf32_hdr *);
+ #define SET_PERSONALITY(ex)	elf_set_personality(&(ex))
+ 
+-struct mm_struct;
+-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+-#define arch_randomize_brk arch_randomize_brk
+-
+ #ifdef CONFIG_MMU
+ #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+ struct linux_binprm;
+diff --git a/arch/arm/include/asm/fncpy.h b/arch/arm/include/asm/fncpy.h
+index de53547..52b9a28 100644
+--- a/arch/arm/include/asm/fncpy.h
++++ b/arch/arm/include/asm/fncpy.h
+@@ -81,7 +81,9 @@
+ 	BUG_ON((uintptr_t)(dest_buf) & (FNCPY_ALIGN - 1) ||		\
+ 		(__funcp_address & ~(uintptr_t)1 & (FNCPY_ALIGN - 1)));	\
+ 									\
++	pax_open_kernel();						\
+ 	memcpy(dest_buf, (void const *)(__funcp_address & ~1), size);	\
++	pax_close_kernel();						\
+ 	flush_icache_range((unsigned long)(dest_buf),			\
+ 		(unsigned long)(dest_buf) + (size));			\
+ 									\
+diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
+index 2aff798..099eb15 100644
+--- a/arch/arm/include/asm/futex.h
++++ b/arch/arm/include/asm/futex.h
+@@ -45,6 +45,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+ 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ 		return -EFAULT;
+ 
++	pax_open_userland();
++
+ 	smp_mb();
+ 	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
+ 	"1:	ldrex	%1, [%4]\n"
+@@ -60,6 +62,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+ 	: "cc", "memory");
+ 	smp_mb();
+ 
++	pax_close_userland();
++
+ 	*uval = val;
+ 	return ret;
+ }
+@@ -90,6 +94,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+ 	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ 		return -EFAULT;
+ 
++	pax_open_userland();
++
+ 	__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
+ 	"1:	" TUSER(ldr) "	%1, [%4]\n"
+ 	"	teq	%1, %2\n"
+@@ -100,6 +106,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+ 	: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)
+ 	: "cc", "memory");
+ 
++	pax_close_userland();
++
+ 	*uval = val;
+ 	return ret;
+ }
+@@ -122,6 +130,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+ 		return -EFAULT;
+ 
+ 	pagefault_disable();	/* implies preempt_disable() */
++	pax_open_userland();
+ 
+ 	switch (op) {
+ 	case FUTEX_OP_SET:
+@@ -143,6 +152,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
+ 		ret = -ENOSYS;
+ 	}
+ 
++	pax_close_userland();
+ 	pagefault_enable();	/* subsumes preempt_enable() */
+ 
+ 	if (!ret) {
+diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
+index 83eb2f7..ed77159 100644
+--- a/arch/arm/include/asm/kmap_types.h
++++ b/arch/arm/include/asm/kmap_types.h
+@@ -4,6 +4,6 @@
+ /*
+  * This is the "bare minimum".  AIO seems to require this.
+  */
+-#define KM_TYPE_NR 16
++#define KM_TYPE_NR 17
+ 
+ #endif
+diff --git a/arch/arm/include/asm/mach/dma.h b/arch/arm/include/asm/mach/dma.h
+index 9e614a1..3302cca 100644
+--- a/arch/arm/include/asm/mach/dma.h
++++ b/arch/arm/include/asm/mach/dma.h
+@@ -22,7 +22,7 @@ struct dma_ops {
+ 	int	(*residue)(unsigned int, dma_t *);		/* optional */
+ 	int	(*setspeed)(unsigned int, dma_t *, int);	/* optional */
+ 	const char *type;
+-};
++} __do_const;
+ 
+ struct dma_struct {
+ 	void		*addr;		/* single DMA address		*/
+diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
+index f98c7f3..e5c626d 100644
+--- a/arch/arm/include/asm/mach/map.h
++++ b/arch/arm/include/asm/mach/map.h
+@@ -23,17 +23,19 @@ struct map_desc {
+ 
+ /* types 0-3 are defined in asm/io.h */
+ enum {
+-	MT_UNCACHED = 4,
+-	MT_CACHECLEAN,
+-	MT_MINICLEAN,
++	MT_UNCACHED_RW = 4,
++	MT_CACHECLEAN_RO,
++	MT_MINICLEAN_RO,
+ 	MT_LOW_VECTORS,
+ 	MT_HIGH_VECTORS,
+-	MT_MEMORY_RWX,
++	__MT_MEMORY_RWX,
+ 	MT_MEMORY_RW,
+-	MT_ROM,
+-	MT_MEMORY_RWX_NONCACHED,
++	MT_MEMORY_RX,
++	MT_ROM_RX,
++	MT_MEMORY_RW_NONCACHED,
++	MT_MEMORY_RX_NONCACHED,
+ 	MT_MEMORY_RW_DTCM,
+-	MT_MEMORY_RWX_ITCM,
++	MT_MEMORY_RX_ITCM,
+ 	MT_MEMORY_RW_SO,
+ 	MT_MEMORY_DMA_READY,
+ };
+diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
+index f94784f..9a09a4a 100644
+--- a/arch/arm/include/asm/outercache.h
++++ b/arch/arm/include/asm/outercache.h
+@@ -35,7 +35,7 @@ struct outer_cache_fns {
+ #endif
+ 	void (*set_debug)(unsigned long);
+ 	void (*resume)(void);
+-};
++} __no_const;
+ 
+ extern struct outer_cache_fns outer_cache;
+ 
+diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
+index 4355f0e..cd9168e 100644
+--- a/arch/arm/include/asm/page.h
++++ b/arch/arm/include/asm/page.h
+@@ -23,6 +23,7 @@
+ 
+ #else
+ 
++#include <linux/compiler.h>
+ #include <asm/glue.h>
+ 
+ /*
+@@ -114,7 +115,7 @@ struct cpu_user_fns {
+ 	void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
+ 	void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
+ 			unsigned long vaddr, struct vm_area_struct *vma);
+-};
++} __no_const;
+ 
+ #ifdef MULTI_USER
+ extern struct cpu_user_fns cpu_user;
+diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
+index 78a7793..e3dc06c 100644
+--- a/arch/arm/include/asm/pgalloc.h
++++ b/arch/arm/include/asm/pgalloc.h
+@@ -17,6 +17,7 @@
+ #include <asm/processor.h>
+ #include <asm/cacheflush.h>
+ #include <asm/tlbflush.h>
++#include <asm/system_info.h>
+ 
+ #define check_pgt_cache()		do { } while (0)
+ 
+@@ -43,6 +44,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+ 	set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
+ }
+ 
++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
++{
++	pud_populate(mm, pud, pmd);
++}
++
+ #else	/* !CONFIG_ARM_LPAE */
+ 
+ /*
+@@ -51,6 +57,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+ #define pmd_alloc_one(mm,addr)		({ BUG(); ((pmd_t *)2); })
+ #define pmd_free(mm, pmd)		do { } while (0)
+ #define pud_populate(mm,pmd,pte)	BUG()
++#define pud_populate_kernel(mm,pmd,pte)	BUG()
+ 
+ #endif	/* CONFIG_ARM_LPAE */
+ 
+@@ -128,6 +135,19 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
+ 	__free_page(pte);
+ }
+ 
++static inline void __section_update(pmd_t *pmdp, unsigned long addr, pmdval_t prot)
++{
++#ifdef CONFIG_ARM_LPAE
++	pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
++#else
++	if (addr & SECTION_SIZE)
++		pmdp[1] = __pmd(pmd_val(pmdp[1]) | prot);
++	else
++		pmdp[0] = __pmd(pmd_val(pmdp[0]) | prot);
++#endif
++	flush_pmd_entry(pmdp);
++}
++
+ static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
+ 				  pmdval_t prot)
+ {
+@@ -157,7 +177,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
+ static inline void
+ pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t ptep)
+ {
+-	__pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE);
++	__pmd_populate(pmdp, page_to_phys(ptep), _PAGE_USER_TABLE | __supported_pmd_mask);
+ }
+ #define pmd_pgtable(pmd) pmd_page(pmd)
+ 
+diff --git a/arch/arm/include/asm/pgtable-2level-hwdef.h b/arch/arm/include/asm/pgtable-2level-hwdef.h
+index 5cfba15..f415e1a 100644
+--- a/arch/arm/include/asm/pgtable-2level-hwdef.h
++++ b/arch/arm/include/asm/pgtable-2level-hwdef.h
+@@ -20,12 +20,15 @@
+ #define PMD_TYPE_FAULT		(_AT(pmdval_t, 0) << 0)
+ #define PMD_TYPE_TABLE		(_AT(pmdval_t, 1) << 0)
+ #define PMD_TYPE_SECT		(_AT(pmdval_t, 2) << 0)
++#define PMD_PXNTABLE		(_AT(pmdval_t, 1) << 2)		/* v7 */
+ #define PMD_BIT4		(_AT(pmdval_t, 1) << 4)
+ #define PMD_DOMAIN(x)		(_AT(pmdval_t, (x)) << 5)
+ #define PMD_PROTECTION		(_AT(pmdval_t, 1) << 9)		/* v5 */
++
+ /*
+  *   - section
+  */
++#define PMD_SECT_PXN		(_AT(pmdval_t, 1) << 0)		/* v7 */
+ #define PMD_SECT_BUFFERABLE	(_AT(pmdval_t, 1) << 2)
+ #define PMD_SECT_CACHEABLE	(_AT(pmdval_t, 1) << 3)
+ #define PMD_SECT_XN		(_AT(pmdval_t, 1) << 4)		/* v6 */
+@@ -37,6 +40,7 @@
+ #define PMD_SECT_nG		(_AT(pmdval_t, 1) << 17)	/* v6 */
+ #define PMD_SECT_SUPER		(_AT(pmdval_t, 1) << 18)	/* v6 */
+ #define PMD_SECT_AF		(_AT(pmdval_t, 0))
++#define PMD_SECT_RDONLY		(_AT(pmdval_t, 0))
+ 
+ #define PMD_SECT_UNCACHED	(_AT(pmdval_t, 0))
+ #define PMD_SECT_BUFFERED	(PMD_SECT_BUFFERABLE)
+@@ -66,6 +70,7 @@
+  *   - extended small page/tiny page
+  */
+ #define PTE_EXT_XN		(_AT(pteval_t, 1) << 0)		/* v6 */
++#define PTE_EXT_PXN		(_AT(pteval_t, 1) << 2)		/* v7 */
+ #define PTE_EXT_AP_MASK		(_AT(pteval_t, 3) << 4)
+ #define PTE_EXT_AP0		(_AT(pteval_t, 1) << 4)
+ #define PTE_EXT_AP1		(_AT(pteval_t, 2) << 4)
+diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
+index 219ac88..73ec32a 100644
+--- a/arch/arm/include/asm/pgtable-2level.h
++++ b/arch/arm/include/asm/pgtable-2level.h
+@@ -126,6 +126,9 @@
+ #define L_PTE_SHARED		(_AT(pteval_t, 1) << 10)	/* shared(v6), coherent(xsc3) */
+ #define L_PTE_NONE		(_AT(pteval_t, 1) << 11)
+ 
++/* Two-level page tables only have PXN in the PGD, not in the PTE. */
++#define L_PTE_PXN		(_AT(pteval_t, 0))
++
+ /*
+  * These are the memory types, defined to be compatible with
+  * pre-ARMv6 CPUs cacheable and bufferable bits:   XXCB
+diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h
+index 9fd61c7..f8f1cff 100644
+--- a/arch/arm/include/asm/pgtable-3level-hwdef.h
++++ b/arch/arm/include/asm/pgtable-3level-hwdef.h
+@@ -76,6 +76,7 @@
+ #define PTE_EXT_SHARED		(_AT(pteval_t, 3) << 8)		/* SH[1:0], inner shareable */
+ #define PTE_EXT_AF		(_AT(pteval_t, 1) << 10)	/* Access Flag */
+ #define PTE_EXT_NG		(_AT(pteval_t, 1) << 11)	/* nG */
++#define PTE_EXT_PXN		(_AT(pteval_t, 1) << 53)	/* PXN */
+ #define PTE_EXT_XN		(_AT(pteval_t, 1) << 54)	/* XN */
+ 
+ /*
+diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
+index 06e0bc0..e60c2d3 100644
+--- a/arch/arm/include/asm/pgtable-3level.h
++++ b/arch/arm/include/asm/pgtable-3level.h
+@@ -81,6 +81,7 @@
+ #define L_PTE_USER		(_AT(pteval_t, 1) << 6)		/* AP[1] */
+ #define L_PTE_SHARED		(_AT(pteval_t, 3) << 8)		/* SH[1:0], inner shareable */
+ #define L_PTE_YOUNG		(_AT(pteval_t, 1) << 10)	/* AF */
++#define L_PTE_PXN		(_AT(pteval_t, 1) << 53)	/* PXN */
+ #define L_PTE_XN		(_AT(pteval_t, 1) << 54)	/* XN */
+ #define L_PTE_DIRTY		(_AT(pteval_t, 1) << 55)
+ #define L_PTE_SPECIAL		(_AT(pteval_t, 1) << 56)
+@@ -96,6 +97,7 @@
+ /*
+  * To be used in assembly code with the upper page attributes.
+  */
++#define L_PTE_PXN_HIGH		(1 << (53 - 32))
+ #define L_PTE_XN_HIGH		(1 << (54 - 32))
+ #define L_PTE_DIRTY_HIGH	(1 << (55 - 32))
+ 
+diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
+index 89dba13..ca1cf20 100644
+--- a/arch/arm/include/asm/pgtable.h
++++ b/arch/arm/include/asm/pgtable.h
+@@ -33,6 +33,9 @@
+ #include <asm/pgtable-2level.h>
+ #endif
+ 
++#define ktla_ktva(addr)		(addr)
++#define ktva_ktla(addr)		(addr)
++
+ /*
+  * Just any arbitrary offset to the start of the vmalloc VM area: the
+  * current 8MB value just means that there will be a 8MB "hole" after the
+@@ -48,6 +51,9 @@
+ #define LIBRARY_TEXT_START	0x0c000000
+ 
+ #ifndef __ASSEMBLY__
++extern pteval_t __supported_pte_mask;
++extern pmdval_t __supported_pmd_mask;
++
+ extern void __pte_error(const char *file, int line, pte_t);
+ extern void __pmd_error(const char *file, int line, pmd_t);
+ extern void __pgd_error(const char *file, int line, pgd_t);
+@@ -56,6 +62,48 @@ extern void __pgd_error(const char *file, int line, pgd_t);
+ #define pmd_ERROR(pmd)		__pmd_error(__FILE__, __LINE__, pmd)
+ #define pgd_ERROR(pgd)		__pgd_error(__FILE__, __LINE__, pgd)
+ 
++#define  __HAVE_ARCH_PAX_OPEN_KERNEL
++#define  __HAVE_ARCH_PAX_CLOSE_KERNEL
++
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++#include <asm/domain.h>
++#include <linux/thread_info.h>
++#include <linux/preempt.h>
++
++static inline int test_domain(int domain, int domaintype)
++{
++	return ((current_thread_info()->cpu_domain) & domain_val(domain, 3)) == domain_val(domain, domaintype);
++}
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++static inline unsigned long pax_open_kernel(void) {
++#ifdef CONFIG_ARM_LPAE
++	/* TODO */
++#else
++	preempt_disable();
++	BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC));
++	modify_domain(DOMAIN_KERNEL, DOMAIN_KERNEXEC);
++#endif
++	return 0;
++}
++
++static inline unsigned long pax_close_kernel(void) {
++#ifdef CONFIG_ARM_LPAE
++	/* TODO */
++#else
++	BUG_ON(test_domain(DOMAIN_KERNEL, DOMAIN_MANAGER));
++	/* DOMAIN_MANAGER = "client" under KERNEXEC */
++	modify_domain(DOMAIN_KERNEL, DOMAIN_MANAGER);
++	preempt_enable_no_resched();
++#endif
++	return 0;
++}
++#else
++static inline unsigned long pax_open_kernel(void) { return 0; }
++static inline unsigned long pax_close_kernel(void) { return 0; }
++#endif
++
+ /*
+  * This is the lowest virtual address we can permit any user space
+  * mapping to be mapped at.  This is particularly important for
+@@ -75,8 +123,8 @@ extern void __pgd_error(const char *file, int line, pgd_t);
+ /*
+  * The pgprot_* and protection_map entries will be fixed up in runtime
+  * to include the cachable and bufferable bits based on memory policy,
+- * as well as any architecture dependent bits like global/ASID and SMP
+- * shared mapping bits.
++ * as well as any architecture dependent bits like global/ASID, PXN,
++ * and SMP shared mapping bits.
+  */
+ #define _L_PTE_DEFAULT	L_PTE_PRESENT | L_PTE_YOUNG
+ 
+@@ -266,7 +314,7 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
+ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+ {
+ 	const pteval_t mask = L_PTE_XN | L_PTE_RDONLY | L_PTE_USER |
+-		L_PTE_NONE | L_PTE_VALID;
++		L_PTE_NONE | L_PTE_VALID | __supported_pte_mask;
+ 	pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
+ 	return pte;
+ }
+diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
+index c4ae171..ea0c0c2 100644
+--- a/arch/arm/include/asm/psci.h
++++ b/arch/arm/include/asm/psci.h
+@@ -29,7 +29,7 @@ struct psci_operations {
+ 	int (*cpu_off)(struct psci_power_state state);
+ 	int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
+ 	int (*migrate)(unsigned long cpuid);
+-};
++} __no_const;
+ 
+ extern struct psci_operations psci_ops;
+ extern struct smp_operations psci_smp_ops;
+diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
+index 22a3b9b..7f214ee 100644
+--- a/arch/arm/include/asm/smp.h
++++ b/arch/arm/include/asm/smp.h
+@@ -112,7 +112,7 @@ struct smp_operations {
+ 	int  (*cpu_disable)(unsigned int cpu);
+ #endif
+ #endif
+-};
++} __no_const;
+ 
+ /*
+  * set platform specific SMP operations
+diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
+index 3e635ee..c39f5b4 100644
+--- a/arch/arm/include/asm/thread_info.h
++++ b/arch/arm/include/asm/thread_info.h
+@@ -77,9 +77,9 @@ struct thread_info {
+ 	.flags		= 0,						\
+ 	.preempt_count	= INIT_PREEMPT_COUNT,				\
+ 	.addr_limit	= KERNEL_DS,					\
+-	.cpu_domain	= domain_val(DOMAIN_USER, DOMAIN_MANAGER) |	\
+-			  domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) |	\
+-			  domain_val(DOMAIN_IO, DOMAIN_CLIENT),		\
++	.cpu_domain	= domain_val(DOMAIN_USER, DOMAIN_USERCLIENT) |	\
++			  domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT) |	\
++			  domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT),	\
+ 	.restart_block	= {						\
+ 		.fn	= do_no_restart_syscall,			\
+ 	},								\
+@@ -146,7 +146,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
+ #define TIF_SYSCALL_AUDIT	9
+ #define TIF_SYSCALL_TRACEPOINT	10
+ #define TIF_SECCOMP		11	/* seccomp syscall filtering active */
+-#define TIF_NOHZ		12	/* in adaptive nohz mode */
++/* within 8 bits of TIF_SYSCALL_TRACE
++ *  to meet flexible second operand requirements
++ */
++#define TIF_GRSEC_SETXID	12
++#define TIF_NOHZ		13	/* in adaptive nohz mode */
+ #define TIF_USING_IWMMXT	17
+ #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
+ #define TIF_RESTORE_SIGMASK	20
+@@ -159,10 +163,11 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
+ #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
+ #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
+ #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
++#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
+ 
+ /* Checks for any syscall work in entry-common.S */
+ #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
+-			   _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
++			   _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | _TIF_GRSEC_SETXID)
+ 
+ /*
+  * Change these and you break ASM code in entry-common.S
+diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
+index 5f833f7..76e6644 100644
+--- a/arch/arm/include/asm/tls.h
++++ b/arch/arm/include/asm/tls.h
+@@ -3,6 +3,7 @@
+ 
+ #include <linux/compiler.h>
+ #include <asm/thread_info.h>
++#include <asm/pgtable.h>
+ 
+ #ifdef __ASSEMBLY__
+ #include <asm/asm-offsets.h>
+@@ -89,7 +90,9 @@ static inline void set_tls(unsigned long val)
+ 			 * at 0xffff0fe0 must be used instead.  (see
+ 			 * entry-armv.S for details)
+ 			 */
++			pax_open_kernel();
+ 			*((unsigned int *)0xffff0ff0) = val;
++			pax_close_kernel();
+ #endif
+ 		}
+ 
+diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
+index 7f3f3cc..bdf0665 100644
+--- a/arch/arm/include/asm/uaccess.h
++++ b/arch/arm/include/asm/uaccess.h
+@@ -18,6 +18,7 @@
+ #include <asm/domain.h>
+ #include <asm/unified.h>
+ #include <asm/compiler.h>
++#include <asm/pgtable.h>
+ 
+ #if __LINUX_ARM_ARCH__ < 6
+ #include <asm-generic/uaccess-unaligned.h>
+@@ -70,11 +71,38 @@ extern int __put_user_bad(void);
+ static inline void set_fs(mm_segment_t fs)
+ {
+ 	current_thread_info()->addr_limit = fs;
+-	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
++	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_KERNELCLIENT : DOMAIN_MANAGER);
+ }
+ 
+ #define segment_eq(a,b)	((a) == (b))
+ 
++#define __HAVE_ARCH_PAX_OPEN_USERLAND
++#define __HAVE_ARCH_PAX_CLOSE_USERLAND
++
++static inline void pax_open_userland(void)
++{
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (segment_eq(get_fs(), USER_DS)) {
++		BUG_ON(test_domain(DOMAIN_USER, DOMAIN_UDEREF));
++		modify_domain(DOMAIN_USER, DOMAIN_UDEREF);
++	}
++#endif
++
++}
++
++static inline void pax_close_userland(void)
++{
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (segment_eq(get_fs(), USER_DS)) {
++		BUG_ON(test_domain(DOMAIN_USER, DOMAIN_NOACCESS));
++		modify_domain(DOMAIN_USER, DOMAIN_NOACCESS);
++	}
++#endif
++
++}
++
+ #define __addr_ok(addr) ({ \
+ 	unsigned long flag; \
+ 	__asm__("cmp %2, %0; movlo %0, #0" \
+@@ -150,8 +178,12 @@ extern int __get_user_4(void *);
+ 
+ #define get_user(x,p)							\
+ 	({								\
++		int __e;						\
+ 		might_fault();						\
+-		__get_user_check(x,p);					\
++		pax_open_userland();					\
++		__e = __get_user_check(x,p);				\
++		pax_close_userland();					\
++		__e;							\
+ 	 })
+ 
+ extern int __put_user_1(void *, unsigned int);
+@@ -196,8 +228,12 @@ extern int __put_user_8(void *, unsigned long long);
+ 
+ #define put_user(x,p)							\
+ 	({								\
++		int __e;						\
+ 		might_fault();						\
+-		__put_user_check(x,p);					\
++		pax_open_userland();					\
++		__e = __put_user_check(x,p);				\
++		pax_close_userland();					\
++		__e;							\
+ 	 })
+ 
+ #else /* CONFIG_MMU */
+@@ -221,6 +257,7 @@ static inline void set_fs(mm_segment_t fs)
+ 
+ #endif /* CONFIG_MMU */
+ 
++#define access_ok_noprefault(type,addr,size) access_ok((type),(addr),(size))
+ #define access_ok(type,addr,size)	(__range_ok(addr,size) == 0)
+ 
+ #define user_addr_max() \
+@@ -238,13 +275,17 @@ static inline void set_fs(mm_segment_t fs)
+ #define __get_user(x,ptr)						\
+ ({									\
+ 	long __gu_err = 0;						\
++	pax_open_userland();						\
+ 	__get_user_err((x),(ptr),__gu_err);				\
++	pax_close_userland();						\
+ 	__gu_err;							\
+ })
+ 
+ #define __get_user_error(x,ptr,err)					\
+ ({									\
++	pax_open_userland();						\
+ 	__get_user_err((x),(ptr),err);					\
++	pax_close_userland();						\
+ 	(void) 0;							\
+ })
+ 
+@@ -320,13 +361,17 @@ do {									\
+ #define __put_user(x,ptr)						\
+ ({									\
+ 	long __pu_err = 0;						\
++	pax_open_userland();						\
+ 	__put_user_err((x),(ptr),__pu_err);				\
++	pax_close_userland();						\
+ 	__pu_err;							\
+ })
+ 
+ #define __put_user_error(x,ptr,err)					\
+ ({									\
++	pax_open_userland();						\
+ 	__put_user_err((x),(ptr),err);					\
++	pax_close_userland();						\
+ 	(void) 0;							\
+ })
+ 
+@@ -426,11 +471,44 @@ do {									\
+ 
+ 
+ #ifdef CONFIG_MMU
+-extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n);
+-extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n);
++extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n);
++extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n);
++
++static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++	unsigned long ret;
++
++	check_object_size(to, n, false);
++	pax_open_userland();
++	ret = ___copy_from_user(to, from, n);
++	pax_close_userland();
++	return ret;
++}
++
++static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n)
++{
++	unsigned long ret;
++
++	check_object_size(from, n, true);
++	pax_open_userland();
++	ret = ___copy_to_user(to, from, n);
++	pax_close_userland();
++	return ret;
++}
++
+ extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n);
+-extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n);
++extern unsigned long __must_check ___clear_user(void __user *addr, unsigned long n);
+ extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n);
++
++static inline unsigned long __must_check __clear_user(void __user *addr, unsigned long n)
++{
++	unsigned long ret;
++	pax_open_userland();
++	ret = ___clear_user(addr, n);
++	pax_close_userland();
++	return ret;
++}
++
+ #else
+ #define __copy_from_user(to,from,n)	(memcpy(to, (void __force *)from, n), 0)
+ #define __copy_to_user(to,from,n)	(memcpy((void __force *)to, from, n), 0)
+@@ -439,6 +517,9 @@ extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned l
+ 
+ static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	if (access_ok(VERIFY_READ, from, n))
+ 		n = __copy_from_user(to, from, n);
+ 	else /* security hole - plug it */
+@@ -448,6 +529,9 @@ static inline unsigned long __must_check copy_from_user(void *to, const void __u
+ 
+ static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	if (access_ok(VERIFY_WRITE, to, n))
+ 		n = __copy_to_user(to, from, n);
+ 	return n;
+diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
+index 5af0ed1..cea83883 100644
+--- a/arch/arm/include/uapi/asm/ptrace.h
++++ b/arch/arm/include/uapi/asm/ptrace.h
+@@ -92,7 +92,7 @@
+  * ARMv7 groups of PSR bits
+  */
+ #define APSR_MASK	0xf80f0000	/* N, Z, C, V, Q and GE flags */
+-#define PSR_ISET_MASK	0x01000010	/* ISA state (J, T) mask */
++#define PSR_ISET_MASK	0x01000020	/* ISA state (J, T) mask */
+ #define PSR_IT_MASK	0x0600fc00	/* If-Then execution state mask */
+ #define PSR_ENDIAN_MASK	0x00000200	/* Endianness state mask */
+ 
+diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
+index 85e664b..419a1cd 100644
+--- a/arch/arm/kernel/armksyms.c
++++ b/arch/arm/kernel/armksyms.c
+@@ -55,7 +55,7 @@ EXPORT_SYMBOL(arm_delay_ops);
+ 
+ 	/* networking */
+ EXPORT_SYMBOL(csum_partial);
+-EXPORT_SYMBOL(csum_partial_copy_from_user);
++EXPORT_SYMBOL(__csum_partial_copy_from_user);
+ EXPORT_SYMBOL(csum_partial_copy_nocheck);
+ EXPORT_SYMBOL(__csum_ipv6_magic);
+ 
+@@ -91,9 +91,9 @@ EXPORT_SYMBOL(__memzero);
+ #ifdef CONFIG_MMU
+ EXPORT_SYMBOL(copy_page);
+ 
+-EXPORT_SYMBOL(__copy_from_user);
+-EXPORT_SYMBOL(__copy_to_user);
+-EXPORT_SYMBOL(__clear_user);
++EXPORT_SYMBOL(___copy_from_user);
++EXPORT_SYMBOL(___copy_to_user);
++EXPORT_SYMBOL(___clear_user);
+ 
+ EXPORT_SYMBOL(__get_user_1);
+ EXPORT_SYMBOL(__get_user_2);
+diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
+index 1879e8d..b2207fc 100644
+--- a/arch/arm/kernel/entry-armv.S
++++ b/arch/arm/kernel/entry-armv.S
+@@ -47,6 +47,87 @@
+ 9997:
+ 	.endm
+ 
++	.macro	pax_enter_kernel
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	@ make aligned space for saved DACR
++	sub	sp, sp, #8
++	@ save regs
++	stmdb	sp!, {r1, r2}
++	@ read DACR from cpu_domain into r1
++	mov	r2, sp
++	@ assume 8K pages, since we have to split the immediate in two
++	bic	r2, r2, #(0x1fc0)
++	bic	r2, r2, #(0x3f)
++	ldr	r1, [r2, #TI_CPU_DOMAIN]
++	@ store old DACR on stack 
++	str	r1, [sp, #8]
++#ifdef CONFIG_PAX_KERNEXEC
++	@ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
++	bic	r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
++	orr	r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
++#endif
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	@ set current DOMAIN_USER to DOMAIN_NOACCESS
++	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
++#endif
++	@ write r1 to current_thread_info()->cpu_domain
++	str	r1, [r2, #TI_CPU_DOMAIN]
++	@ write r1 to DACR
++	mcr	p15, 0, r1, c3, c0, 0
++	@ instruction sync
++	instr_sync
++	@ restore regs
++	ldmia	sp!, {r1, r2}
++#endif
++	.endm
++
++	.macro	pax_open_userland
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	@ save regs
++	stmdb	sp!, {r0, r1}
++	@ read DACR from cpu_domain into r1
++	mov	r0, sp
++	@ assume 8K pages, since we have to split the immediate in two
++	bic	r0, r0, #(0x1fc0)
++	bic	r0, r0, #(0x3f)
++	ldr	r1, [r0, #TI_CPU_DOMAIN]
++	@ set current DOMAIN_USER to DOMAIN_CLIENT
++	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
++	orr	r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
++	@ write r1 to current_thread_info()->cpu_domain
++	str	r1, [r0, #TI_CPU_DOMAIN]
++	@ write r1 to DACR
++	mcr	p15, 0, r1, c3, c0, 0
++	@ instruction sync
++	instr_sync
++	@ restore regs
++	ldmia	sp!, {r0, r1}
++#endif
++	.endm
++
++	.macro	pax_close_userland
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	@ save regs
++	stmdb	sp!, {r0, r1}
++	@ read DACR from cpu_domain into r1
++	mov	r0, sp
++	@ assume 8K pages, since we have to split the immediate in two
++	bic	r0, r0, #(0x1fc0)
++	bic	r0, r0, #(0x3f)
++	ldr	r1, [r0, #TI_CPU_DOMAIN]
++	@ set current DOMAIN_USER to DOMAIN_NOACCESS
++	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
++	@ write r1 to current_thread_info()->cpu_domain
++	str	r1, [r0, #TI_CPU_DOMAIN]
++	@ write r1 to DACR
++	mcr	p15, 0, r1, c3, c0, 0
++	@ instruction sync
++	instr_sync
++	@ restore regs
++	ldmia	sp!, {r0, r1}
++#endif
++	.endm
++
+ 	.macro	pabt_helper
+ 	@ PABORT handler takes pt_regs in r2, fault address in r4 and psr in r5
+ #ifdef MULTI_PABORT
+@@ -89,11 +170,15 @@
+  * Invalid mode handlers
+  */
+ 	.macro	inv_entry, reason
++
++	pax_enter_kernel
++
+ 	sub	sp, sp, #S_FRAME_SIZE
+  ARM(	stmib	sp, {r1 - lr}		)
+  THUMB(	stmia	sp, {r0 - r12}		)
+  THUMB(	str	sp, [sp, #S_SP]		)
+  THUMB(	str	lr, [sp, #S_LR]		)
++
+ 	mov	r1, #\reason
+ 	.endm
+ 
+@@ -149,7 +234,11 @@ ENDPROC(__und_invalid)
+ 	.macro	svc_entry, stack_hole=0
+  UNWIND(.fnstart		)
+  UNWIND(.save {r0 - pc}		)
++
++	pax_enter_kernel
++
+ 	sub	sp, sp, #(S_FRAME_SIZE + \stack_hole - 4)
++
+ #ifdef CONFIG_THUMB2_KERNEL
+  SPFIX(	str	r0, [sp]	)	@ temporarily saved
+  SPFIX(	mov	r0, sp		)
+@@ -164,7 +253,12 @@ ENDPROC(__und_invalid)
+ 	ldmia	r0, {r3 - r5}
+ 	add	r7, sp, #S_SP - 4	@ here for interlock avoidance
+ 	mov	r6, #-1			@  ""  ""      ""       ""
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	@ offset sp by 8 as done in pax_enter_kernel
++	add	r2, sp, #(S_FRAME_SIZE + \stack_hole + 4)
++#else
+ 	add	r2, sp, #(S_FRAME_SIZE + \stack_hole - 4)
++#endif
+  SPFIX(	addeq	r2, r2, #4	)
+ 	str	r3, [sp, #-4]!		@ save the "real" r0 copied
+ 					@ from the exception stack
+@@ -317,6 +411,9 @@ ENDPROC(__pabt_svc)
+ 	.macro	usr_entry
+  UNWIND(.fnstart	)
+  UNWIND(.cantunwind	)	@ don't unwind the user space
++
++	pax_enter_kernel_user
++
+ 	sub	sp, sp, #S_FRAME_SIZE
+  ARM(	stmib	sp, {r1 - r12}	)
+  THUMB(	stmia	sp, {r0 - r12}	)
+@@ -416,7 +513,9 @@ __und_usr:
+ 	tst	r3, #PSR_T_BIT			@ Thumb mode?
+ 	bne	__und_usr_thumb
+ 	sub	r4, r2, #4			@ ARM instr at LR - 4
++	pax_open_userland
+ 1:	ldrt	r0, [r4]
++	pax_close_userland
+  ARM_BE8(rev	r0, r0)				@ little endian instruction
+ 
+ 	@ r0 = 32-bit ARM instruction which caused the exception
+@@ -450,11 +549,15 @@ __und_usr_thumb:
+  */
+ 	.arch	armv6t2
+ #endif
++	pax_open_userland
+ 2:	ldrht	r5, [r4]
++	pax_close_userland
+ ARM_BE8(rev16	r5, r5)				@ little endian instruction
+ 	cmp	r5, #0xe800			@ 32bit instruction if xx != 0
+ 	blo	__und_usr_fault_16		@ 16bit undefined instruction
++	pax_open_userland
+ 3:	ldrht	r0, [r2]
++	pax_close_userland
+ ARM_BE8(rev16	r0, r0)				@ little endian instruction
+ 	add	r2, r2, #2			@ r2 is PC + 2, make it PC + 4
+ 	str	r2, [sp, #S_PC]			@ it's a 2x16bit instr, update
+@@ -484,7 +587,8 @@ ENDPROC(__und_usr)
+  */
+ 	.pushsection .fixup, "ax"
+ 	.align	2
+-4:	mov	pc, r9
++4:	pax_close_userland
++	mov	pc, r9
+ 	.popsection
+ 	.pushsection __ex_table,"a"
+ 	.long	1b, 4b
+@@ -694,7 +798,7 @@ ENTRY(__switch_to)
+  THUMB(	str	lr, [ip], #4		   )
+ 	ldr	r4, [r2, #TI_TP_VALUE]
+ 	ldr	r5, [r2, #TI_TP_VALUE + 4]
+-#ifdef CONFIG_CPU_USE_DOMAINS
++#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+ 	ldr	r6, [r2, #TI_CPU_DOMAIN]
+ #endif
+ 	switch_tls r1, r4, r5, r3, r7
+@@ -703,7 +807,7 @@ ENTRY(__switch_to)
+ 	ldr	r8, =__stack_chk_guard
+ 	ldr	r7, [r7, #TSK_STACK_CANARY]
+ #endif
+-#ifdef CONFIG_CPU_USE_DOMAINS
++#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
+ 	mcr	p15, 0, r6, c3, c0, 0		@ Set domain register
+ #endif
+ 	mov	r5, r0
+diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
+index 98dd389..e6878f2 100644
+--- a/arch/arm/kernel/entry-common.S
++++ b/arch/arm/kernel/entry-common.S
+@@ -10,18 +10,46 @@
+ 
+ #include <asm/unistd.h>
+ #include <asm/ftrace.h>
++#include <asm/domain.h>
+ #include <asm/unwind.h>
+ 
++#include "entry-header.S"
++
+ #ifdef CONFIG_NEED_RET_TO_USER
+ #include <mach/entry-macro.S>
+ #else
+ 	.macro  arch_ret_to_user, tmp1, tmp2
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	@ save regs
++	stmdb	sp!, {r1, r2}
++        @ read DACR from cpu_domain into r1
++        mov     r2, sp
++        @ assume 8K pages, since we have to split the immediate in two
++        bic     r2, r2, #(0x1fc0)
++        bic     r2, r2, #(0x3f)
++        ldr     r1, [r2, #TI_CPU_DOMAIN]
++#ifdef CONFIG_PAX_KERNEXEC
++        @ set type of DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
++        bic     r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
++        orr     r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
++#endif
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++        @ set current DOMAIN_USER to DOMAIN_UDEREF
++        bic     r1, r1, #(domain_val(DOMAIN_USER, 3))
++        orr     r1, r1, #(domain_val(DOMAIN_USER, DOMAIN_UDEREF))
++#endif
++        @ write r1 to current_thread_info()->cpu_domain
++        str     r1, [r2, #TI_CPU_DOMAIN]
++        @ write r1 to DACR
++        mcr     p15, 0, r1, c3, c0, 0
++        @ instruction sync
++        instr_sync
++	@ restore regs
++	ldmia	sp!, {r1, r2}
++#endif
+ 	.endm
+ #endif
+ 
+-#include "entry-header.S"
+-
+-
+ 	.align	5
+ /*
+  * This is the fast syscall return path.  We do as little as
+@@ -413,6 +441,12 @@ ENTRY(vector_swi)
+  USER(	ldr	scno, [lr, #-4]		)	@ get SWI instruction
+ #endif
+ 
++	/*
++	 * do this here to avoid a performance hit of wrapping the code above
++	 * that directly dereferences userland to parse the SWI instruction
++	 */
++	pax_enter_kernel_user
++
+ 	adr	tbl, sys_call_table		@ load syscall table pointer
+ 
+ #if defined(CONFIG_OABI_COMPAT)
+diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
+index 88c6bab..652981b 100644
+--- a/arch/arm/kernel/entry-header.S
++++ b/arch/arm/kernel/entry-header.S
+@@ -188,6 +188,60 @@
+ 	msr	cpsr_c, \rtemp			@ switch back to the SVC mode
+ 	.endm
+ 
++	.macro	pax_enter_kernel_user
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	@ save regs
++	stmdb	sp!, {r0, r1}
++	@ read DACR from cpu_domain into r1
++	mov	r0, sp
++	@ assume 8K pages, since we have to split the immediate in two
++	bic	r0, r0, #(0x1fc0)
++	bic	r0, r0, #(0x3f)
++	ldr	r1, [r0, #TI_CPU_DOMAIN]
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	@ set current DOMAIN_USER to DOMAIN_NOACCESS
++	bic	r1, r1, #(domain_val(DOMAIN_USER, 3))
++#endif
++#ifdef CONFIG_PAX_KERNEXEC
++	@ set current DOMAIN_KERNEL to DOMAIN_KERNELCLIENT
++	bic	r1, r1, #(domain_val(DOMAIN_KERNEL, 3))
++	orr	r1, r1, #(domain_val(DOMAIN_KERNEL, DOMAIN_KERNELCLIENT))
++#endif
++	@ write r1 to current_thread_info()->cpu_domain
++	str	r1, [r0, #TI_CPU_DOMAIN]
++	@ write r1 to DACR
++	mcr	p15, 0, r1, c3, c0, 0
++	@ instruction sync
++	instr_sync
++	@ restore regs
++	ldmia	sp!, {r0, r1}
++#endif
++	.endm
++
++	.macro  pax_exit_kernel
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	@ save regs
++	stmdb	sp!, {r0, r1}
++	@ read old DACR from stack into r1
++	ldr	r1, [sp, #(8 + S_SP)]
++	sub	r1, r1, #8
++	ldr	r1, [r1]
++
++	@ write r1 to current_thread_info()->cpu_domain
++	mov	r0, sp
++	@ assume 8K pages, since we have to split the immediate in two
++	bic	r0, r0, #(0x1fc0)
++	bic	r0, r0, #(0x3f)
++	str	r1, [r0, #TI_CPU_DOMAIN]
++	@ write r1 to DACR
++	mcr	p15, 0, r1, c3, c0, 0
++	@ instruction sync
++	instr_sync
++	@ restore regs
++	ldmia	sp!, {r0, r1}
++#endif
++	.endm
++
+ #ifndef CONFIG_THUMB2_KERNEL
+ 	.macro	svc_exit, rpsr, irq = 0
+ 	.if	\irq != 0
+@@ -207,6 +261,9 @@
+ 	blne	trace_hardirqs_off
+ #endif
+ 	.endif
++
++	pax_exit_kernel
++
+ 	msr	spsr_cxsf, \rpsr
+ #if defined(CONFIG_CPU_V6)
+ 	ldr	r0, [sp]
+@@ -270,6 +327,9 @@
+ 	blne	trace_hardirqs_off
+ #endif
+ 	.endif
++
++	pax_exit_kernel
++
+ 	ldr	lr, [sp, #S_SP]			@ top of the stack
+ 	ldrd	r0, r1, [sp, #S_LR]		@ calling lr and pc
+ 	clrex					@ clear the exclusive monitor
+diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
+index 918875d..cd5fa27 100644
+--- a/arch/arm/kernel/fiq.c
++++ b/arch/arm/kernel/fiq.c
+@@ -87,7 +87,10 @@ void set_fiq_handler(void *start, unsigned int length)
+ 	void *base = vectors_page;
+ 	unsigned offset = FIQ_OFFSET;
+ 
++	pax_open_kernel();
+ 	memcpy(base + offset, start, length);
++	pax_close_kernel();
++
+ 	if (!cache_is_vipt_nonaliasing())
+ 		flush_icache_range((unsigned long)base + offset, offset +
+ 				   length);
+diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
+index f5f381d..a6f36a1 100644
+--- a/arch/arm/kernel/head.S
++++ b/arch/arm/kernel/head.S
+@@ -437,7 +437,7 @@ __enable_mmu:
+ 	mov	r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
+ 		      domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
+ 		      domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
+-		      domain_val(DOMAIN_IO, DOMAIN_CLIENT))
++		      domain_val(DOMAIN_IO, DOMAIN_KERNELCLIENT))
+ 	mcr	p15, 0, r5, c3, c0, 0		@ load domain access register
+ 	mcr	p15, 0, r4, c2, c0, 0		@ load page table pointer
+ #endif
+diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
+index 45e4781..8eac93d 100644
+--- a/arch/arm/kernel/module.c
++++ b/arch/arm/kernel/module.c
+@@ -38,12 +38,39 @@
+ #endif
+ 
+ #ifdef CONFIG_MMU
+-void *module_alloc(unsigned long size)
++static inline void *__module_alloc(unsigned long size, pgprot_t prot)
+ {
++	if (!size || PAGE_ALIGN(size) > MODULES_END - MODULES_VADDR)
++		return NULL;
+ 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+-				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
++				GFP_KERNEL, prot, NUMA_NO_NODE,
+ 				__builtin_return_address(0));
+ }
++
++void *module_alloc(unsigned long size)
++{
++
++#ifdef CONFIG_PAX_KERNEXEC
++	return __module_alloc(size, PAGE_KERNEL);
++#else
++	return __module_alloc(size, PAGE_KERNEL_EXEC);
++#endif
++
++}
++
++#ifdef CONFIG_PAX_KERNEXEC
++void module_free_exec(struct module *mod, void *module_region)
++{
++	module_free(mod, module_region);
++}
++EXPORT_SYMBOL(module_free_exec);
++
++void *module_alloc_exec(unsigned long size)
++{
++	return __module_alloc(size, PAGE_KERNEL_EXEC);
++}
++EXPORT_SYMBOL(module_alloc_exec);
++#endif
+ #endif
+ 
+ int
+diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
+index 07314af..c46655c 100644
+--- a/arch/arm/kernel/patch.c
++++ b/arch/arm/kernel/patch.c
+@@ -18,6 +18,7 @@ void __kprobes __patch_text(void *addr, unsigned int insn)
+ 	bool thumb2 = IS_ENABLED(CONFIG_THUMB2_KERNEL);
+ 	int size;
+ 
++	pax_open_kernel();
+ 	if (thumb2 && __opcode_is_thumb16(insn)) {
+ 		*(u16 *)addr = __opcode_to_mem_thumb16(insn);
+ 		size = sizeof(u16);
+@@ -39,6 +40,7 @@ void __kprobes __patch_text(void *addr, unsigned int insn)
+ 		*(u32 *)addr = insn;
+ 		size = sizeof(u32);
+ 	}
++	pax_close_kernel();
+ 
+ 	flush_icache_range((uintptr_t)(addr),
+ 			   (uintptr_t)(addr) + size);
+diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
+index 5f6e650..b5e6630 100644
+--- a/arch/arm/kernel/process.c
++++ b/arch/arm/kernel/process.c
+@@ -217,6 +217,7 @@ void machine_power_off(void)
+ 
+ 	if (pm_power_off)
+ 		pm_power_off();
++	BUG();
+ }
+ 
+ /*
+@@ -230,7 +231,7 @@ void machine_power_off(void)
+  * executing pre-reset code, and using RAM that the primary CPU's code wishes
+  * to use. Implementing such co-ordination would be essentially impossible.
+  */
+-void machine_restart(char *cmd)
++__noreturn void machine_restart(char *cmd)
+ {
+ 	local_irq_disable();
+ 	smp_send_stop();
+@@ -253,8 +254,8 @@ void __show_regs(struct pt_regs *regs)
+ 
+ 	show_regs_print_info(KERN_DEFAULT);
+ 
+-	print_symbol("PC is at %s\n", instruction_pointer(regs));
+-	print_symbol("LR is at %s\n", regs->ARM_lr);
++	printk("PC is at %pA\n", (void *)instruction_pointer(regs));
++	printk("LR is at %pA\n", (void *)regs->ARM_lr);
+ 	printk("pc : [<%08lx>]    lr : [<%08lx>]    psr: %08lx\n"
+ 	       "sp : %08lx  ip : %08lx  fp : %08lx\n",
+ 		regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
+@@ -427,12 +428,6 @@ unsigned long get_wchan(struct task_struct *p)
+ 	return 0;
+ }
+ 
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+-	unsigned long range_end = mm->brk + 0x02000000;
+-	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
+-}
+-
+ #ifdef CONFIG_MMU
+ #ifdef CONFIG_KUSER_HELPERS
+ /*
+@@ -448,7 +443,7 @@ static struct vm_area_struct gate_vma = {
+ 
+ static int __init gate_vma_init(void)
+ {
+-	gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
++	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
+ 	return 0;
+ }
+ arch_initcall(gate_vma_init);
+@@ -474,41 +469,16 @@ int in_gate_area_no_mm(unsigned long addr)
+ 
+ const char *arch_vma_name(struct vm_area_struct *vma)
+ {
+-	return is_gate_vma(vma) ? "[vectors]" :
+-		(vma->vm_mm && vma->vm_start == vma->vm_mm->context.sigpage) ?
+-		 "[sigpage]" : NULL;
++	return is_gate_vma(vma) ? "[vectors]" : NULL;
+ }
+ 
+-static struct page *signal_page;
+-extern struct page *get_signal_page(void);
+-
+ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+ {
+ 	struct mm_struct *mm = current->mm;
+-	unsigned long addr;
+-	int ret;
+-
+-	if (!signal_page)
+-		signal_page = get_signal_page();
+-	if (!signal_page)
+-		return -ENOMEM;
+ 
+ 	down_write(&mm->mmap_sem);
+-	addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
+-	if (IS_ERR_VALUE(addr)) {
+-		ret = addr;
+-		goto up_fail;
+-	}
+-
+-	ret = install_special_mapping(mm, addr, PAGE_SIZE,
+-		VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
+-		&signal_page);
+-
+-	if (ret == 0)
+-		mm->context.sigpage = addr;
+-
+- up_fail:
++	mm->context.sigpage = (PAGE_OFFSET + (get_random_int() % 0x3FFEFFE0)) & 0xFFFFFFFC;
+ 	up_write(&mm->mmap_sem);
+-	return ret;
++	return 0;
+ }
+ #endif
+diff --git a/arch/arm/kernel/psci.c b/arch/arm/kernel/psci.c
+index 4693188..4596c5e 100644
+--- a/arch/arm/kernel/psci.c
++++ b/arch/arm/kernel/psci.c
+@@ -24,7 +24,7 @@
+ #include <asm/opcodes-virt.h>
+ #include <asm/psci.h>
+ 
+-struct psci_operations psci_ops;
++struct psci_operations psci_ops __read_only;
+ 
+ static int (*invoke_psci_fn)(u32, u32, u32, u32);
+ 
+diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
+index 0dd3b79..b67388e 100644
+--- a/arch/arm/kernel/ptrace.c
++++ b/arch/arm/kernel/ptrace.c
+@@ -908,7 +908,7 @@ enum ptrace_syscall_dir {
+ 	PTRACE_SYSCALL_EXIT,
+ };
+ 
+-static int tracehook_report_syscall(struct pt_regs *regs,
++static void tracehook_report_syscall(struct pt_regs *regs,
+ 				    enum ptrace_syscall_dir dir)
+ {
+ 	unsigned long ip;
+@@ -926,19 +926,29 @@ static int tracehook_report_syscall(struct pt_regs *regs,
+ 		current_thread_info()->syscall = -1;
+ 
+ 	regs->ARM_ip = ip;
+-	return current_thread_info()->syscall;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno)
+ {
+ 	current_thread_info()->syscall = scno;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	/* Do the secure computing check first; failures should be fast. */
+ 	if (secure_computing(scno) == -1)
+ 		return -1;
+ 
+ 	if (test_thread_flag(TIF_SYSCALL_TRACE))
+-		scno = tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
++		tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER);
++
++	scno = current_thread_info()->syscall;
+ 
+ 	if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
+ 		trace_sys_enter(regs, scno);
+diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
+index aab70f6..bd2751b 100644
+--- a/arch/arm/kernel/setup.c
++++ b/arch/arm/kernel/setup.c
+@@ -100,21 +100,23 @@ EXPORT_SYMBOL(system_serial_high);
+ unsigned int elf_hwcap __read_mostly;
+ EXPORT_SYMBOL(elf_hwcap);
+ 
++pteval_t __supported_pte_mask __read_only;
++pmdval_t __supported_pmd_mask __read_only;
+ 
+ #ifdef MULTI_CPU
+-struct processor processor __read_mostly;
++struct processor processor __read_only;
+ #endif
+ #ifdef MULTI_TLB
+-struct cpu_tlb_fns cpu_tlb __read_mostly;
++struct cpu_tlb_fns cpu_tlb __read_only;
+ #endif
+ #ifdef MULTI_USER
+-struct cpu_user_fns cpu_user __read_mostly;
++struct cpu_user_fns cpu_user __read_only;
+ #endif
+ #ifdef MULTI_CACHE
+-struct cpu_cache_fns cpu_cache __read_mostly;
++struct cpu_cache_fns cpu_cache __read_only;
+ #endif
+ #ifdef CONFIG_OUTER_CACHE
+-struct outer_cache_fns outer_cache __read_mostly;
++struct outer_cache_fns outer_cache __read_only;
+ EXPORT_SYMBOL(outer_cache);
+ #endif
+ 
+@@ -247,9 +249,13 @@ static int __get_cpu_architecture(void)
+ 		asm("mrc	p15, 0, %0, c0, c1, 4"
+ 		    : "=r" (mmfr0));
+ 		if ((mmfr0 & 0x0000000f) >= 0x00000003 ||
+-		    (mmfr0 & 0x000000f0) >= 0x00000030)
++		    (mmfr0 & 0x000000f0) >= 0x00000030) {
+ 			cpu_arch = CPU_ARCH_ARMv7;
+-		else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
++			if ((mmfr0 & 0x0000000f) == 0x00000005 || (mmfr0 & 0x0000000f) == 0x00000004) {
++				__supported_pte_mask |= L_PTE_PXN;
++				__supported_pmd_mask |= PMD_PXNTABLE;
++			}
++		} else if ((mmfr0 & 0x0000000f) == 0x00000002 ||
+ 			 (mmfr0 & 0x000000f0) == 0x00000020)
+ 			cpu_arch = CPU_ARCH_ARMv6;
+ 		else
+diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
+index 04d6388..5115238 100644
+--- a/arch/arm/kernel/signal.c
++++ b/arch/arm/kernel/signal.c
+@@ -23,8 +23,6 @@
+ 
+ extern const unsigned long sigreturn_codes[7];
+ 
+-static unsigned long signal_return_offset;
+-
+ #ifdef CONFIG_CRUNCH
+ static int preserve_crunch_context(struct crunch_sigframe __user *frame)
+ {
+@@ -395,8 +393,7 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
+ 			 * except when the MPU has protected the vectors
+ 			 * page from PL0
+ 			 */
+-			retcode = mm->context.sigpage + signal_return_offset +
+-				  (idx << 2) + thumb;
++			retcode = mm->context.sigpage + (idx << 2) + thumb;
+ 		} else
+ #endif
+ 		{
+@@ -600,33 +597,3 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
+ 	} while (thread_flags & _TIF_WORK_MASK);
+ 	return 0;
+ }
+-
+-struct page *get_signal_page(void)
+-{
+-	unsigned long ptr;
+-	unsigned offset;
+-	struct page *page;
+-	void *addr;
+-
+-	page = alloc_pages(GFP_KERNEL, 0);
+-
+-	if (!page)
+-		return NULL;
+-
+-	addr = page_address(page);
+-
+-	/* Give the signal return code some randomness */
+-	offset = 0x200 + (get_random_int() & 0x7fc);
+-	signal_return_offset = offset;
+-
+-	/*
+-	 * Copy signal return handlers into the vector page, and
+-	 * set sigreturn to be a pointer to these.
+-	 */
+-	memcpy(addr + offset, sigreturn_codes, sizeof(sigreturn_codes));
+-
+-	ptr = (unsigned long)addr + offset;
+-	flush_icache_range(ptr, ptr + sizeof(sigreturn_codes));
+-
+-	return page;
+-}
+diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
+index 8cd3724..ea86e94 100644
+--- a/arch/arm/kernel/smp.c
++++ b/arch/arm/kernel/smp.c
+@@ -73,7 +73,7 @@ enum ipi_msg_type {
+ 
+ static DECLARE_COMPLETION(cpu_running);
+ 
+-static struct smp_operations smp_ops;
++static struct smp_operations smp_ops __read_only;
+ 
+ void __init smp_set_ops(struct smp_operations *ops)
+ {
+diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c
+index 7a3be1d..b00c7de 100644
+--- a/arch/arm/kernel/tcm.c
++++ b/arch/arm/kernel/tcm.c
+@@ -61,7 +61,7 @@ static struct map_desc itcm_iomap[] __initdata = {
+ 		.virtual	= ITCM_OFFSET,
+ 		.pfn		= __phys_to_pfn(ITCM_OFFSET),
+ 		.length		= 0,
+-		.type		= MT_MEMORY_RWX_ITCM,
++		.type		= MT_MEMORY_RX_ITCM,
+ 	}
+ };
+ 
+@@ -267,7 +267,9 @@ no_dtcm:
+ 		start = &__sitcm_text;
+ 		end   = &__eitcm_text;
+ 		ram   = &__itcm_start;
++		pax_open_kernel();
+ 		memcpy(start, ram, itcm_code_sz);
++		pax_close_kernel();
+ 		pr_debug("CPU ITCM: copied code from %p - %p\n",
+ 			 start, end);
+ 		itcm_present = true;
+diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
+index 3f31443..ae30fc0 100644
+--- a/arch/arm/kernel/traps.c
++++ b/arch/arm/kernel/traps.c
+@@ -62,7 +62,7 @@ static void dump_mem(const char *, const char *, unsigned long, unsigned long);
+ void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame)
+ {
+ #ifdef CONFIG_KALLSYMS
+-	printk("[<%08lx>] (%ps) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from);
++	printk("[<%08lx>] (%pA) from [<%08lx>] (%pA)\n", where, (void *)where, from, (void *)from);
+ #else
+ 	printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from);
+ #endif
+@@ -264,6 +264,8 @@ static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
+ static int die_owner = -1;
+ static unsigned int die_nest_count;
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ static unsigned long oops_begin(void)
+ {
+ 	int cpu;
+@@ -306,6 +308,9 @@ static void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
+ 		panic("Fatal exception in interrupt");
+ 	if (panic_on_oops)
+ 		panic("Fatal exception");
++
++	gr_handle_kernel_exploit();
++
+ 	if (signr)
+ 		do_exit(signr);
+ }
+@@ -857,7 +862,11 @@ void __init early_trap_init(void *vectors_base)
+ 	kuser_init(vectors_base);
+ 
+ 	flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
+-	modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
++
++#ifndef CONFIG_PAX_MEMORY_UDEREF
++	modify_domain(DOMAIN_USER, DOMAIN_USERCLIENT);
++#endif
++
+ #else /* ifndef CONFIG_CPU_V7M */
+ 	/*
+ 	 * on V7-M there is no need to copy the vector table to a dedicated
+diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
+index 7bcee5c..e2f3249 100644
+--- a/arch/arm/kernel/vmlinux.lds.S
++++ b/arch/arm/kernel/vmlinux.lds.S
+@@ -8,7 +8,11 @@
+ #include <asm/thread_info.h>
+ #include <asm/memory.h>
+ #include <asm/page.h>
+-	
++
++#ifdef CONFIG_PAX_KERNEXEC
++#include <asm/pgtable.h>
++#endif
++
+ #define PROC_INFO							\
+ 	. = ALIGN(4);							\
+ 	VMLINUX_SYMBOL(__proc_info_begin) = .;				\
+@@ -34,7 +38,7 @@
+ #endif
+ 
+ #if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
+-	defined(CONFIG_GENERIC_BUG)
++	defined(CONFIG_GENERIC_BUG) || defined(CONFIG_PAX_REFCOUNT)
+ #define ARM_EXIT_KEEP(x)	x
+ #define ARM_EXIT_DISCARD(x)
+ #else
+@@ -90,6 +94,11 @@ SECTIONS
+ 		_text = .;
+ 		HEAD_TEXT
+ 	}
++
++#ifdef CONFIG_PAX_KERNEXEC
++	. = ALIGN(1<<SECTION_SHIFT);
++#endif
++
+ 	.text : {			/* Real text segment		*/
+ 		_stext = .;		/* Text and read-only data	*/
+ 			__exception_text_start = .;
+@@ -112,6 +121,8 @@ SECTIONS
+ 			ARM_CPU_KEEP(PROC_INFO)
+ 	}
+ 
++	_etext = .;			/* End of text section */
++
+ 	RO_DATA(PAGE_SIZE)
+ 
+ 	. = ALIGN(4);
+@@ -142,7 +153,9 @@ SECTIONS
+ 
+ 	NOTES
+ 
+-	_etext = .;			/* End of text and rodata section */
++#ifdef CONFIG_PAX_KERNEXEC
++	. = ALIGN(1<<SECTION_SHIFT);
++#endif
+ 
+ #ifndef CONFIG_XIP_KERNEL
+ 	. = ALIGN(PAGE_SIZE);
+@@ -220,6 +233,11 @@ SECTIONS
+ 	. = PAGE_OFFSET + TEXT_OFFSET;
+ #else
+ 	__init_end = .;
++
++#ifdef CONFIG_PAX_KERNEXEC
++	. = ALIGN(1<<SECTION_SHIFT);
++#endif
++
+ 	. = ALIGN(THREAD_SIZE);
+ 	__data_loc = .;
+ #endif
+diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
+index bd18bb8..2bf342f 100644
+--- a/arch/arm/kvm/arm.c
++++ b/arch/arm/kvm/arm.c
+@@ -57,7 +57,7 @@ static unsigned long hyp_default_vectors;
+ static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_arm_running_vcpu);
+ 
+ /* The VMID used in the VTTBR */
+-static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
++static atomic64_unchecked_t kvm_vmid_gen = ATOMIC64_INIT(1);
+ static u8 kvm_next_vmid;
+ static DEFINE_SPINLOCK(kvm_vmid_lock);
+ 
+@@ -408,7 +408,7 @@ void force_vm_exit(const cpumask_t *mask)
+  */
+ static bool need_new_vmid_gen(struct kvm *kvm)
+ {
+-	return unlikely(kvm->arch.vmid_gen != atomic64_read(&kvm_vmid_gen));
++	return unlikely(kvm->arch.vmid_gen != atomic64_read_unchecked(&kvm_vmid_gen));
+ }
+ 
+ /**
+@@ -441,7 +441,7 @@ static void update_vttbr(struct kvm *kvm)
+ 
+ 	/* First user of a new VMID generation? */
+ 	if (unlikely(kvm_next_vmid == 0)) {
+-		atomic64_inc(&kvm_vmid_gen);
++		atomic64_inc_unchecked(&kvm_vmid_gen);
+ 		kvm_next_vmid = 1;
+ 
+ 		/*
+@@ -458,7 +458,7 @@ static void update_vttbr(struct kvm *kvm)
+ 		kvm_call_hyp(__kvm_flush_vm_context);
+ 	}
+ 
+-	kvm->arch.vmid_gen = atomic64_read(&kvm_vmid_gen);
++	kvm->arch.vmid_gen = atomic64_read_unchecked(&kvm_vmid_gen);
+ 	kvm->arch.vmid = kvm_next_vmid;
+ 	kvm_next_vmid++;
+ 
+@@ -1033,7 +1033,7 @@ static void check_kvm_target_cpu(void *ret)
+ /**
+  * Initialize Hyp-mode and memory mappings on all CPUs.
+  */
+-int kvm_arch_init(void *opaque)
++int kvm_arch_init(const void *opaque)
+ {
+ 	int err;
+ 	int ret, cpu;
+diff --git a/arch/arm/lib/clear_user.S b/arch/arm/lib/clear_user.S
+index 14a0d98..7771a7d 100644
+--- a/arch/arm/lib/clear_user.S
++++ b/arch/arm/lib/clear_user.S
+@@ -12,14 +12,14 @@
+ 
+ 		.text
+ 
+-/* Prototype: int __clear_user(void *addr, size_t sz)
++/* Prototype: int ___clear_user(void *addr, size_t sz)
+  * Purpose  : clear some user memory
+  * Params   : addr - user memory address to clear
+  *          : sz   - number of bytes to clear
+  * Returns  : number of bytes NOT cleared
+  */
+ ENTRY(__clear_user_std)
+-WEAK(__clear_user)
++WEAK(___clear_user)
+ 		stmfd	sp!, {r1, lr}
+ 		mov	r2, #0
+ 		cmp	r1, #4
+@@ -44,7 +44,7 @@ WEAK(__clear_user)
+ USER(		strnebt	r2, [r0])
+ 		mov	r0, #0
+ 		ldmfd	sp!, {r1, pc}
+-ENDPROC(__clear_user)
++ENDPROC(___clear_user)
+ ENDPROC(__clear_user_std)
+ 
+ 		.pushsection .fixup,"ax"
+diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
+index 66a477a..bee61d3 100644
+--- a/arch/arm/lib/copy_from_user.S
++++ b/arch/arm/lib/copy_from_user.S
+@@ -16,7 +16,7 @@
+ /*
+  * Prototype:
+  *
+- *	size_t __copy_from_user(void *to, const void *from, size_t n)
++ *	size_t ___copy_from_user(void *to, const void *from, size_t n)
+  *
+  * Purpose:
+  *
+@@ -84,11 +84,11 @@
+ 
+ 	.text
+ 
+-ENTRY(__copy_from_user)
++ENTRY(___copy_from_user)
+ 
+ #include "copy_template.S"
+ 
+-ENDPROC(__copy_from_user)
++ENDPROC(___copy_from_user)
+ 
+ 	.pushsection .fixup,"ax"
+ 	.align 0
+diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
+index 6ee2f67..d1cce76 100644
+--- a/arch/arm/lib/copy_page.S
++++ b/arch/arm/lib/copy_page.S
+@@ -10,6 +10,7 @@
+  *  ASM optimised string functions
+  */
+ #include <linux/linkage.h>
++#include <linux/const.h>
+ #include <asm/assembler.h>
+ #include <asm/asm-offsets.h>
+ #include <asm/cache.h>
+diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
+index d066df6..df28194 100644
+--- a/arch/arm/lib/copy_to_user.S
++++ b/arch/arm/lib/copy_to_user.S
+@@ -16,7 +16,7 @@
+ /*
+  * Prototype:
+  *
+- *	size_t __copy_to_user(void *to, const void *from, size_t n)
++ *	size_t ___copy_to_user(void *to, const void *from, size_t n)
+  *
+  * Purpose:
+  *
+@@ -88,11 +88,11 @@
+ 	.text
+ 
+ ENTRY(__copy_to_user_std)
+-WEAK(__copy_to_user)
++WEAK(___copy_to_user)
+ 
+ #include "copy_template.S"
+ 
+-ENDPROC(__copy_to_user)
++ENDPROC(___copy_to_user)
+ ENDPROC(__copy_to_user_std)
+ 
+ 	.pushsection .fixup,"ax"
+diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
+index 7d08b43..f7ca7ea 100644
+--- a/arch/arm/lib/csumpartialcopyuser.S
++++ b/arch/arm/lib/csumpartialcopyuser.S
+@@ -57,8 +57,8 @@
+  *  Returns : r0 = checksum, [[sp, #0], #0] = 0 or -EFAULT
+  */
+ 
+-#define FN_ENTRY	ENTRY(csum_partial_copy_from_user)
+-#define FN_EXIT		ENDPROC(csum_partial_copy_from_user)
++#define FN_ENTRY	ENTRY(__csum_partial_copy_from_user)
++#define FN_EXIT		ENDPROC(__csum_partial_copy_from_user)
+ 
+ #include "csumpartialcopygeneric.S"
+ 
+diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c
+index 5306de3..aed6d03 100644
+--- a/arch/arm/lib/delay.c
++++ b/arch/arm/lib/delay.c
+@@ -28,7 +28,7 @@
+ /*
+  * Default to the loop-based delay implementation.
+  */
+-struct arm_delay_ops arm_delay_ops = {
++struct arm_delay_ops arm_delay_ops __read_only = {
+ 	.delay		= __loop_delay,
+ 	.const_udelay	= __loop_const_udelay,
+ 	.udelay		= __loop_udelay,
+diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
+index 3e58d71..029817c 100644
+--- a/arch/arm/lib/uaccess_with_memcpy.c
++++ b/arch/arm/lib/uaccess_with_memcpy.c
+@@ -136,7 +136,7 @@ out:
+ }
+ 
+ unsigned long
+-__copy_to_user(void __user *to, const void *from, unsigned long n)
++___copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
+ 	/*
+ 	 * This test is stubbed out of the main function above to keep
+@@ -190,7 +190,7 @@ out:
+ 	return n;
+ }
+ 
+-unsigned long __clear_user(void __user *addr, unsigned long n)
++unsigned long ___clear_user(void __user *addr, unsigned long n)
+ {
+ 	/* See rational for this in __copy_to_user() above. */
+ 	if (n < 64)
+diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
+index f7ca97b..3d7e719 100644
+--- a/arch/arm/mach-at91/setup.c
++++ b/arch/arm/mach-at91/setup.c
+@@ -81,7 +81,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length)
+ 
+ 	desc->pfn = __phys_to_pfn(base);
+ 	desc->length = length;
+-	desc->type = MT_MEMORY_RWX_NONCACHED;
++	desc->type = MT_MEMORY_RW_NONCACHED;
+ 
+ 	pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n",
+ 		base, length, desc->virtual);
+diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
+index f3407a5..bd4256f 100644
+--- a/arch/arm/mach-kirkwood/common.c
++++ b/arch/arm/mach-kirkwood/common.c
+@@ -156,7 +156,16 @@ static void clk_gate_fn_disable(struct clk_hw *hw)
+ 	clk_gate_ops.disable(hw);
+ }
+ 
+-static struct clk_ops clk_gate_fn_ops;
++static int clk_gate_fn_is_enabled(struct clk_hw *hw)
++{
++	return clk_gate_ops.is_enabled(hw);
++}
++
++static struct clk_ops clk_gate_fn_ops = {
++	.enable = clk_gate_fn_enable,
++	.disable = clk_gate_fn_disable,
++	.is_enabled = clk_gate_fn_is_enabled,
++};
+ 
+ static struct clk __init *clk_register_gate_fn(struct device *dev,
+ 		const char *name,
+@@ -190,14 +199,6 @@ static struct clk __init *clk_register_gate_fn(struct device *dev,
+ 	gate_fn->fn_en = fn_en;
+ 	gate_fn->fn_dis = fn_dis;
+ 
+-	/* ops is the gate ops, but with our enable/disable functions */
+-	if (clk_gate_fn_ops.enable != clk_gate_fn_enable ||
+-	    clk_gate_fn_ops.disable != clk_gate_fn_disable) {
+-		clk_gate_fn_ops = clk_gate_ops;
+-		clk_gate_fn_ops.enable = clk_gate_fn_enable;
+-		clk_gate_fn_ops.disable = clk_gate_fn_disable;
+-	}
+-
+ 	clk = clk_register(dev, &gate_fn->gate.hw);
+ 
+ 	if (IS_ERR(clk))
+diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
+index aead77a..a2253fa 100644
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -568,7 +568,7 @@ static int n8x0_menelaus_late_init(struct device *dev)
+ }
+ #endif
+ 
+-static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
++static struct menelaus_platform_data n8x0_menelaus_platform_data __initconst = {
+ 	.late_init = n8x0_menelaus_late_init,
+ };
+ 
+diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
+index ab43755..ccfa231 100644
+--- a/arch/arm/mach-omap2/gpmc.c
++++ b/arch/arm/mach-omap2/gpmc.c
+@@ -148,7 +148,6 @@ struct omap3_gpmc_regs {
+ };
+ 
+ static struct gpmc_client_irq gpmc_client_irq[GPMC_NR_IRQ];
+-static struct irq_chip gpmc_irq_chip;
+ static int gpmc_irq_start;
+ 
+ static struct resource	gpmc_mem_root;
+@@ -716,6 +715,18 @@ static void gpmc_irq_noop(struct irq_data *data) { }
+ 
+ static unsigned int gpmc_irq_noop_ret(struct irq_data *data) { return 0; }
+ 
++static struct irq_chip gpmc_irq_chip = {
++	.name = "gpmc",
++	.irq_startup = gpmc_irq_noop_ret,
++	.irq_enable = gpmc_irq_enable,
++	.irq_disable = gpmc_irq_disable,
++	.irq_shutdown = gpmc_irq_noop,
++	.irq_ack = gpmc_irq_noop,
++	.irq_mask = gpmc_irq_noop,
++	.irq_unmask = gpmc_irq_noop,
++
++};
++
+ static int gpmc_setup_irq(void)
+ {
+ 	int i;
+@@ -730,15 +741,6 @@ static int gpmc_setup_irq(void)
+ 		return gpmc_irq_start;
+ 	}
+ 
+-	gpmc_irq_chip.name = "gpmc";
+-	gpmc_irq_chip.irq_startup = gpmc_irq_noop_ret;
+-	gpmc_irq_chip.irq_enable = gpmc_irq_enable;
+-	gpmc_irq_chip.irq_disable = gpmc_irq_disable;
+-	gpmc_irq_chip.irq_shutdown = gpmc_irq_noop;
+-	gpmc_irq_chip.irq_ack = gpmc_irq_noop;
+-	gpmc_irq_chip.irq_mask = gpmc_irq_noop;
+-	gpmc_irq_chip.irq_unmask = gpmc_irq_noop;
+-
+ 	gpmc_client_irq[0].bitmask = GPMC_IRQ_FIFOEVENTENABLE;
+ 	gpmc_client_irq[1].bitmask = GPMC_IRQ_COUNT_EVENT;
+ 
+diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+index 667915d..2ee1219 100644
+--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
++++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+@@ -84,7 +84,7 @@ struct cpu_pm_ops {
+ 	int (*finish_suspend)(unsigned long cpu_state);
+ 	void (*resume)(void);
+ 	void (*scu_prepare)(unsigned int cpu_id, unsigned int cpu_state);
+-};
++} __no_const;
+ 
+ static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
+ static struct powerdomain *mpuss_pd;
+@@ -102,7 +102,7 @@ static void dummy_cpu_resume(void)
+ static void dummy_scu_prepare(unsigned int cpu_id, unsigned int cpu_state)
+ {}
+ 
+-struct cpu_pm_ops omap_pm_ops = {
++static struct cpu_pm_ops omap_pm_ops __read_only = {
+ 	.finish_suspend		= default_finish_suspend,
+ 	.resume			= dummy_cpu_resume,
+ 	.scu_prepare		= dummy_scu_prepare,
+diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
+index 3664562..72f85c6 100644
+--- a/arch/arm/mach-omap2/omap-wakeupgen.c
++++ b/arch/arm/mach-omap2/omap-wakeupgen.c
+@@ -343,7 +343,7 @@ static int irq_cpu_hotplug_notify(struct notifier_block *self,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata irq_hotplug_notifier = {
++static struct notifier_block irq_hotplug_notifier = {
+ 	.notifier_call = irq_cpu_hotplug_notify,
+ };
+ 
+diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
+index 01ef59d..32ae28a8 100644
+--- a/arch/arm/mach-omap2/omap_device.c
++++ b/arch/arm/mach-omap2/omap_device.c
+@@ -510,7 +510,7 @@ void omap_device_delete(struct omap_device *od)
+ struct platform_device __init *omap_device_build(const char *pdev_name,
+ 						 int pdev_id,
+ 						 struct omap_hwmod *oh,
+-						 void *pdata, int pdata_len)
++						 const void *pdata, int pdata_len)
+ {
+ 	struct omap_hwmod *ohs[] = { oh };
+ 
+@@ -538,7 +538,7 @@ struct platform_device __init *omap_device_build(const char *pdev_name,
+ struct platform_device __init *omap_device_build_ss(const char *pdev_name,
+ 						    int pdev_id,
+ 						    struct omap_hwmod **ohs,
+-						    int oh_cnt, void *pdata,
++						    int oh_cnt, const void *pdata,
+ 						    int pdata_len)
+ {
+ 	int ret = -ENOMEM;
+diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h
+index 78c02b3..c94109a 100644
+--- a/arch/arm/mach-omap2/omap_device.h
++++ b/arch/arm/mach-omap2/omap_device.h
+@@ -72,12 +72,12 @@ int omap_device_idle(struct platform_device *pdev);
+ /* Core code interface */
+ 
+ struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
+-					  struct omap_hwmod *oh, void *pdata,
++					  struct omap_hwmod *oh, const void *pdata,
+ 					  int pdata_len);
+ 
+ struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
+ 					 struct omap_hwmod **oh, int oh_cnt,
+-					 void *pdata, int pdata_len);
++					 const void *pdata, int pdata_len);
+ 
+ struct omap_device *omap_device_alloc(struct platform_device *pdev,
+ 				      struct omap_hwmod **ohs, int oh_cnt);
+diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
+index 4551efd..d487c24 100644
+--- a/arch/arm/mach-omap2/omap_hwmod.c
++++ b/arch/arm/mach-omap2/omap_hwmod.c
+@@ -194,10 +194,10 @@ struct omap_hwmod_soc_ops {
+ 	int (*init_clkdm)(struct omap_hwmod *oh);
+ 	void (*update_context_lost)(struct omap_hwmod *oh);
+ 	int (*get_context_lost)(struct omap_hwmod *oh);
+-};
++} __no_const;
+ 
+ /* soc_ops: adapts the omap_hwmod code to the currently-booted SoC */
+-static struct omap_hwmod_soc_ops soc_ops;
++static struct omap_hwmod_soc_ops soc_ops __read_only;
+ 
+ /* omap_hwmod_list contains all registered struct omap_hwmods */
+ static LIST_HEAD(omap_hwmod_list);
+diff --git a/arch/arm/mach-omap2/powerdomains43xx_data.c b/arch/arm/mach-omap2/powerdomains43xx_data.c
+index 95fee54..cfa9cf1 100644
+--- a/arch/arm/mach-omap2/powerdomains43xx_data.c
++++ b/arch/arm/mach-omap2/powerdomains43xx_data.c
+@@ -10,6 +10,7 @@
+ 
+ #include <linux/kernel.h>
+ #include <linux/init.h>
++#include <asm/pgtable.h>
+ 
+ #include "powerdomain.h"
+ 
+@@ -129,7 +130,9 @@ static int am43xx_check_vcvp(void)
+ 
+ void __init am43xx_powerdomains_init(void)
+ {
+-	omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
++	pax_open_kernel();
++	*(void **)&omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
++	pax_close_kernel();
+ 	pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
+ 	pwrdm_register_pwrdms(powerdomains_am43xx);
+ 	pwrdm_complete_init();
+diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
+index d15c7bb..b2d1f0c 100644
+--- a/arch/arm/mach-omap2/wd_timer.c
++++ b/arch/arm/mach-omap2/wd_timer.c
+@@ -110,7 +110,9 @@ static int __init omap_init_wdt(void)
+ 	struct omap_hwmod *oh;
+ 	char *oh_name = "wd_timer2";
+ 	char *dev_name = "omap_wdt";
+-	struct omap_wd_timer_platform_data pdata;
++	static struct omap_wd_timer_platform_data pdata = {
++		.read_reset_sources = prm_read_reset_sources
++	};
+ 
+ 	if (!cpu_class_is_omap2() || of_have_populated_dt())
+ 		return 0;
+@@ -121,8 +123,6 @@ static int __init omap_init_wdt(void)
+ 		return -EINVAL;
+ 	}
+ 
+-	pdata.read_reset_sources = prm_read_reset_sources;
+-
+ 	pdev = omap_device_build(dev_name, id, oh, &pdata,
+ 				 sizeof(struct omap_wd_timer_platform_data));
+ 	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
+diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
+index b82dcae..44ee5b6 100644
+--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
++++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
+@@ -180,7 +180,7 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
+ 	bool entered_lp2 = false;
+ 
+ 	if (tegra_pending_sgi())
+-		ACCESS_ONCE(abort_flag) = true;
++		ACCESS_ONCE_RW(abort_flag) = true;
+ 
+ 	cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
+ 
+diff --git a/arch/arm/mach-ux500/setup.h b/arch/arm/mach-ux500/setup.h
+index 2dea8b5..6499da2 100644
+--- a/arch/arm/mach-ux500/setup.h
++++ b/arch/arm/mach-ux500/setup.h
+@@ -33,13 +33,6 @@ extern void ux500_timer_init(void);
+ 	.type		= MT_DEVICE,		\
+ }
+ 
+-#define __MEM_DEV_DESC(x, sz)	{		\
+-	.virtual	= IO_ADDRESS(x),	\
+-	.pfn		= __phys_to_pfn(x),	\
+-	.length		= sz,			\
+-	.type		= MT_MEMORY_RWX,		\
+-}
+-
+ extern struct smp_operations ux500_smp_ops;
+ extern void ux500_cpu_die(unsigned int cpu);
+ 
+diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
+index e9c290c..d0e3d41 100644
+--- a/arch/arm/mm/Kconfig
++++ b/arch/arm/mm/Kconfig
+@@ -446,6 +446,7 @@ config CPU_32v5
+ 
+ config CPU_32v6
+ 	bool
++	select CPU_USE_DOMAINS if CPU_V6 && MMU && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
+ 	select TLS_REG_EMUL if !CPU_32v6K && !MMU
+ 
+ config CPU_32v6K
+@@ -600,6 +601,7 @@ config CPU_CP15_MPU
+ 
+ config CPU_USE_DOMAINS
+ 	bool
++	depends on !ARM_LPAE && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
+ 	help
+ 	  This option enables or disables the use of domain switching
+ 	  via the set_fs() function.
+@@ -798,7 +800,7 @@ config NEED_KUSER_HELPERS
+ 
+ config KUSER_HELPERS
+ 	bool "Enable kuser helpers in vector page" if !NEED_KUSER_HELPERS
+-	depends on MMU
++	depends on MMU && (!(CPU_V6 || CPU_V6K || CPU_V7) || GRKERNSEC_OLD_ARM_USERLAND)
+ 	default y
+ 	help
+ 	  Warning: disabling this option may break user programs.
+@@ -812,7 +814,7 @@ config KUSER_HELPERS
+ 	  See Documentation/arm/kernel_user_helpers.txt for details.
+ 
+ 	  However, the fixed address nature of these helpers can be used
+-	  by ROP (return orientated programming) authors when creating
++	  by ROP (Return Oriented Programming) authors when creating
+ 	  exploits.
+ 
+ 	  If all of the binaries and libraries which run on your platform
+diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
+index d301662..a6ef72c 100644
+--- a/arch/arm/mm/alignment.c
++++ b/arch/arm/mm/alignment.c
+@@ -213,10 +213,12 @@ union offset_union {
+ #define __get16_unaligned_check(ins,val,addr)			\
+ 	do {							\
+ 		unsigned int err = 0, v, a = addr;		\
++		pax_open_userland();				\
+ 		__get8_unaligned_check(ins,v,a,err);		\
+ 		val =  v << ((BE) ? 8 : 0);			\
+ 		__get8_unaligned_check(ins,v,a,err);		\
+ 		val |= v << ((BE) ? 0 : 8);			\
++		pax_close_userland();				\
+ 		if (err)					\
+ 			goto fault;				\
+ 	} while (0)
+@@ -230,6 +232,7 @@ union offset_union {
+ #define __get32_unaligned_check(ins,val,addr)			\
+ 	do {							\
+ 		unsigned int err = 0, v, a = addr;		\
++		pax_open_userland();				\
+ 		__get8_unaligned_check(ins,v,a,err);		\
+ 		val =  v << ((BE) ? 24 :  0);			\
+ 		__get8_unaligned_check(ins,v,a,err);		\
+@@ -238,6 +241,7 @@ union offset_union {
+ 		val |= v << ((BE) ?  8 : 16);			\
+ 		__get8_unaligned_check(ins,v,a,err);		\
+ 		val |= v << ((BE) ?  0 : 24);			\
++		pax_close_userland();				\
+ 		if (err)					\
+ 			goto fault;				\
+ 	} while (0)
+@@ -251,6 +255,7 @@ union offset_union {
+ #define __put16_unaligned_check(ins,val,addr)			\
+ 	do {							\
+ 		unsigned int err = 0, v = val, a = addr;	\
++		pax_open_userland();				\
+ 		__asm__( FIRST_BYTE_16				\
+ 	 ARM(	"1:	"ins"	%1, [%2], #1\n"	)		\
+ 	 THUMB(	"1:	"ins"	%1, [%2]\n"	)		\
+@@ -270,6 +275,7 @@ union offset_union {
+ 		"	.popsection\n"				\
+ 		: "=r" (err), "=&r" (v), "=&r" (a)		\
+ 		: "0" (err), "1" (v), "2" (a));			\
++		pax_close_userland();				\
+ 		if (err)					\
+ 			goto fault;				\
+ 	} while (0)
+@@ -283,6 +289,7 @@ union offset_union {
+ #define __put32_unaligned_check(ins,val,addr)			\
+ 	do {							\
+ 		unsigned int err = 0, v = val, a = addr;	\
++		pax_open_userland();				\
+ 		__asm__( FIRST_BYTE_32				\
+ 	 ARM(	"1:	"ins"	%1, [%2], #1\n"	)		\
+ 	 THUMB(	"1:	"ins"	%1, [%2]\n"	)		\
+@@ -312,6 +319,7 @@ union offset_union {
+ 		"	.popsection\n"				\
+ 		: "=r" (err), "=&r" (v), "=&r" (a)		\
+ 		: "0" (err), "1" (v), "2" (a));			\
++		pax_close_userland();				\
+ 		if (err)					\
+ 			goto fault;				\
+ 	} while (0)
+diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
+index 7abde2c..9df495f 100644
+--- a/arch/arm/mm/cache-l2x0.c
++++ b/arch/arm/mm/cache-l2x0.c
+@@ -46,7 +46,7 @@ struct l2x0_of_data {
+ 	void (*setup)(const struct device_node *, u32 *, u32 *);
+ 	void (*save)(void);
+ 	struct outer_cache_fns outer_cache;
+-};
++} __do_const;
+ 
+ static bool of_init = false;
+ 
+diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
+index 4370933..e77848e 100644
+--- a/arch/arm/mm/context.c
++++ b/arch/arm/mm/context.c
+@@ -43,7 +43,7 @@
+ #define NUM_USER_ASIDS		ASID_FIRST_VERSION
+ 
+ static DEFINE_RAW_SPINLOCK(cpu_asid_lock);
+-static atomic64_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
++static atomic64_unchecked_t asid_generation = ATOMIC64_INIT(ASID_FIRST_VERSION);
+ static DECLARE_BITMAP(asid_map, NUM_USER_ASIDS);
+ 
+ static DEFINE_PER_CPU(atomic64_t, active_asids);
+@@ -178,7 +178,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
+ {
+ 	static u32 cur_idx = 1;
+ 	u64 asid = atomic64_read(&mm->context.id);
+-	u64 generation = atomic64_read(&asid_generation);
++	u64 generation = atomic64_read_unchecked(&asid_generation);
+ 
+ 	if (asid != 0 && is_reserved_asid(asid)) {
+ 		/*
+@@ -199,7 +199,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
+ 		 */
+ 		asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, cur_idx);
+ 		if (asid == NUM_USER_ASIDS) {
+-			generation = atomic64_add_return(ASID_FIRST_VERSION,
++			generation = atomic64_add_return_unchecked(ASID_FIRST_VERSION,
+ 							 &asid_generation);
+ 			flush_context(cpu);
+ 			asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1);
+@@ -230,14 +230,14 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk)
+ 	cpu_set_reserved_ttbr0();
+ 
+ 	asid = atomic64_read(&mm->context.id);
+-	if (!((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS)
++	if (!((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS)
+ 	    && atomic64_xchg(&per_cpu(active_asids, cpu), asid))
+ 		goto switch_mm_fastpath;
+ 
+ 	raw_spin_lock_irqsave(&cpu_asid_lock, flags);
+ 	/* Check that our ASID belongs to the current generation. */
+ 	asid = atomic64_read(&mm->context.id);
+-	if ((asid ^ atomic64_read(&asid_generation)) >> ASID_BITS) {
++	if ((asid ^ atomic64_read_unchecked(&asid_generation)) >> ASID_BITS) {
+ 		asid = new_context(mm, cpu);
+ 		atomic64_set(&mm->context.id, asid);
+ 	}
+diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
+index eb8830a..e8ff52e 100644
+--- a/arch/arm/mm/fault.c
++++ b/arch/arm/mm/fault.c
+@@ -25,6 +25,7 @@
+ #include <asm/system_misc.h>
+ #include <asm/system_info.h>
+ #include <asm/tlbflush.h>
++#include <asm/sections.h>
+ 
+ #include "fault.h"
+ 
+@@ -138,6 +139,31 @@ __do_kernel_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
+ 	if (fixup_exception(regs))
+ 		return;
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (addr < TASK_SIZE) {
++		if (current->signal->curr_ip)
++			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
++		else
++			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
++	}
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++	if ((fsr & FSR_WRITE) &&
++	    (((unsigned long)_stext <= addr && addr < init_mm.end_code) ||
++	     (MODULES_VADDR <= addr && addr < MODULES_END)))
++	{
++		if (current->signal->curr_ip)
++			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
++		else
++			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
++	}
++#endif
++
+ 	/*
+ 	 * No handler, we'll have to terminate things with extreme prejudice.
+ 	 */
+@@ -174,6 +200,13 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
+ 	}
+ #endif
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (fsr & FSR_LNX_PF) {
++		pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp);
++		do_group_exit(SIGKILL);
++	}
++#endif
++
+ 	tsk->thread.address = addr;
+ 	tsk->thread.error_code = fsr;
+ 	tsk->thread.trap_no = 14;
+@@ -401,6 +434,33 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+ }
+ #endif					/* CONFIG_MMU */
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 20; i++) {
++		unsigned char c;
++		if (get_user(c, (__force unsigned char __user *)pc+i))
++			printk(KERN_CONT "?? ");
++		else
++			printk(KERN_CONT "%02x ", c);
++	}
++	printk("\n");
++
++	printk(KERN_ERR "PAX: bytes at SP-4: ");
++	for (i = -1; i < 20; i++) {
++		unsigned long c;
++		if (get_user(c, (__force unsigned long __user *)sp+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08lx ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ /*
+  * First Level Translation Fault Handler
+  *
+@@ -548,9 +608,22 @@ do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+ 	const struct fsr_info *inf = fsr_info + fsr_fs(fsr);
+ 	struct siginfo info;
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (addr < TASK_SIZE && is_domain_fault(fsr)) {
++		if (current->signal->curr_ip)
++			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
++		else
++			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to access userland memory at %08lx\n", current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()), addr);
++		goto die;
++	}
++#endif
++
+ 	if (!inf->fn(addr, fsr & ~FSR_LNX_PF, regs))
+ 		return;
+ 
++die:
+ 	printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
+ 		inf->name, fsr, addr);
+ 
+@@ -574,15 +647,104 @@ hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *
+ 	ifsr_info[nr].name = name;
+ }
+ 
++asmlinkage int sys_sigreturn(struct pt_regs *regs);
++asmlinkage int sys_rt_sigreturn(struct pt_regs *regs);
++
+ asmlinkage void __exception
+ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs)
+ {
+ 	const struct fsr_info *inf = ifsr_info + fsr_fs(ifsr);
+ 	struct siginfo info;
++	unsigned long pc = instruction_pointer(regs);
++
++	if (user_mode(regs)) {
++		unsigned long sigpage = current->mm->context.sigpage;
++
++		if (sigpage <= pc && pc < sigpage + 7*4) {
++			if (pc < sigpage + 3*4)
++				sys_sigreturn(regs);
++			else
++				sys_rt_sigreturn(regs);
++			return;
++		}
++		if (pc == 0xffff0f60UL) {
++			/*
++			 * PaX: __kuser_cmpxchg64 emulation
++			 */
++			// TODO
++			//regs->ARM_pc = regs->ARM_lr;
++			//return;
++		}
++		if (pc == 0xffff0fa0UL) {
++			/*
++			 * PaX: __kuser_memory_barrier emulation
++			 */
++			// dmb(); implied by the exception
++			regs->ARM_pc = regs->ARM_lr;
++			return;
++		}
++		if (pc == 0xffff0fc0UL) {
++			/*
++			 * PaX: __kuser_cmpxchg emulation
++			 */
++			// TODO
++			//long new;
++			//int op;
++
++			//op = FUTEX_OP_SET << 28;
++			//new = futex_atomic_op_inuser(op, regs->ARM_r2);
++			//regs->ARM_r0 = old != new;
++			//regs->ARM_pc = regs->ARM_lr;
++			//return;
++		}
++		if (pc == 0xffff0fe0UL) {
++			/*
++			 * PaX: __kuser_get_tls emulation
++			 */
++			regs->ARM_r0 = current_thread_info()->tp_value[0];
++			regs->ARM_pc = regs->ARM_lr;
++			return;
++		}
++	}
++
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	else if (is_domain_fault(ifsr) || is_xn_fault(ifsr)) {
++		if (current->signal->curr_ip)
++			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", &current->signal->curr_ip, current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
++					pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
++		else
++			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to execute %s memory at %08lx\n", current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()),
++					pc >= TASK_SIZE ? "non-executable kernel" : "userland", pc);
++		goto die;
++	}
++#endif
++
++#ifdef CONFIG_PAX_REFCOUNT
++	if (fsr_fs(ifsr) == FAULT_CODE_DEBUG) {
++#ifdef CONFIG_THUMB2_KERNEL
++		unsigned short bkpt;
++
++		if (!probe_kernel_address(pc, bkpt) && cpu_to_le16(bkpt) == 0xbef1) {
++#else
++		unsigned int bkpt;
++
++		if (!probe_kernel_address(pc, bkpt) && cpu_to_le32(bkpt) == 0xe12f1073) {
++#endif
++			current->thread.error_code = ifsr;
++			current->thread.trap_no = 0;
++			pax_report_refcount_overflow(regs);
++			fixup_exception(regs);
++			return;
++		}
++	}
++#endif
+ 
+ 	if (!inf->fn(addr, ifsr | FSR_LNX_PF, regs))
+ 		return;
+ 
++die:
+ 	printk(KERN_ALERT "Unhandled prefetch abort: %s (0x%03x) at 0x%08lx\n",
+ 		inf->name, ifsr, addr);
+ 
+diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
+index cf08bdf..772656c 100644
+--- a/arch/arm/mm/fault.h
++++ b/arch/arm/mm/fault.h
+@@ -3,6 +3,7 @@
+ 
+ /*
+  * Fault status register encodings.  We steal bit 31 for our own purposes.
++ * Set when the FSR value is from an instruction fault.
+  */
+ #define FSR_LNX_PF		(1 << 31)
+ #define FSR_WRITE		(1 << 11)
+@@ -22,6 +23,17 @@ static inline int fsr_fs(unsigned int fsr)
+ }
+ #endif
+ 
++/* valid for LPAE and !LPAE */
++static inline int is_xn_fault(unsigned int fsr)
++{
++	return ((fsr_fs(fsr) & 0x3c) == 0xc);
++}
++
++static inline int is_domain_fault(unsigned int fsr)
++{
++	return ((fsr_fs(fsr) & 0xD) == 0x9);
++}
++
+ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
+ unsigned long search_exception_table(unsigned long addr);
+ 
+diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
+index 804d615..fcec50a 100644
+--- a/arch/arm/mm/init.c
++++ b/arch/arm/mm/init.c
+@@ -30,6 +30,8 @@
+ #include <asm/setup.h>
+ #include <asm/tlb.h>
+ #include <asm/fixmap.h>
++#include <asm/system_info.h>
++#include <asm/cp15.h>
+ 
+ #include <asm/mach/arch.h>
+ #include <asm/mach/map.h>
+@@ -625,7 +627,46 @@ void free_initmem(void)
+ {
+ #ifdef CONFIG_HAVE_TCM
+ 	extern char __tcm_start, __tcm_end;
++#endif
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	unsigned long addr;
++	pgd_t *pgd;
++	pud_t *pud;
++	pmd_t *pmd;
++	int cpu_arch = cpu_architecture();
++	unsigned int cr = get_cr();
++
++	if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) {
++		/* make pages tables, etc before .text NX */
++		for (addr = PAGE_OFFSET; addr < (unsigned long)_stext; addr += SECTION_SIZE) {
++			pgd = pgd_offset_k(addr);
++			pud = pud_offset(pgd, addr);
++			pmd = pmd_offset(pud, addr);
++			__section_update(pmd, addr, PMD_SECT_XN);
++		}
++		/* make init NX */
++		for (addr = (unsigned long)__init_begin; addr < (unsigned long)_sdata; addr += SECTION_SIZE) {
++			pgd = pgd_offset_k(addr);
++			pud = pud_offset(pgd, addr);
++			pmd = pmd_offset(pud, addr);
++			__section_update(pmd, addr, PMD_SECT_XN);
++		}
++		/* make kernel code/rodata RX */
++		for (addr = (unsigned long)_stext; addr < (unsigned long)__init_begin; addr += SECTION_SIZE) {
++			pgd = pgd_offset_k(addr);
++			pud = pud_offset(pgd, addr);
++			pmd = pmd_offset(pud, addr);
++#ifdef CONFIG_ARM_LPAE
++			__section_update(pmd, addr, PMD_SECT_RDONLY);
++#else
++			__section_update(pmd, addr, PMD_SECT_APX|PMD_SECT_AP_WRITE);
++#endif
++		}
++	}
++#endif
++
++#ifdef CONFIG_HAVE_TCM
+ 	poison_init_mem(&__tcm_start, &__tcm_end - &__tcm_start);
+ 	free_reserved_area(&__tcm_start, &__tcm_end, -1, "TCM link");
+ #endif
+diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
+index f9c32ba..8540068 100644
+--- a/arch/arm/mm/ioremap.c
++++ b/arch/arm/mm/ioremap.c
+@@ -392,9 +392,9 @@ __arm_ioremap_exec(phys_addr_t phys_addr, size_t size, bool cached)
+ 	unsigned int mtype;
+ 
+ 	if (cached)
+-		mtype = MT_MEMORY_RWX;
++		mtype = MT_MEMORY_RX;
+ 	else
+-		mtype = MT_MEMORY_RWX_NONCACHED;
++		mtype = MT_MEMORY_RX_NONCACHED;
+ 
+ 	return __arm_ioremap_caller(phys_addr, size, mtype,
+ 			__builtin_return_address(0));
+diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
+index 5e85ed3..b10a7ed 100644
+--- a/arch/arm/mm/mmap.c
++++ b/arch/arm/mm/mmap.c
+@@ -59,6 +59,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	struct vm_area_struct *vma;
+ 	int do_align = 0;
+ 	int aliasing = cache_is_vipt_aliasing();
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	/*
+@@ -81,6 +82,10 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	if (len > TASK_SIZE)
+ 		return -ENOMEM;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		if (do_align)
+ 			addr = COLOUR_ALIGN(addr, pgoff);
+@@ -88,8 +93,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 			addr = PAGE_ALIGN(addr);
+ 
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -99,6 +103,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+@@ -112,6 +117,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	unsigned long addr = addr0;
+ 	int do_align = 0;
+ 	int aliasing = cache_is_vipt_aliasing();
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	/*
+@@ -132,6 +138,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		return addr;
+ 	}
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	/* requesting a specific address */
+ 	if (addr) {
+ 		if (do_align)
+@@ -139,8 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		else
+ 			addr = PAGE_ALIGN(addr);
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-				(!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -150,6 +159,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+@@ -173,6 +183,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+ 	unsigned long random_factor = 0UL;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	/* 8 bits of randomness in 20 address space bits */
+ 	if ((current->flags & PF_RANDOMIZE) &&
+ 	    !(current->personality & ADDR_NO_RANDOMIZE))
+@@ -180,9 +194,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area;
+ 	} else {
+ 		mm->mmap_base = mmap_base(random_factor);
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ 	}
+ }
+diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
+index f15c22e..d830561 100644
+--- a/arch/arm/mm/mmu.c
++++ b/arch/arm/mm/mmu.c
+@@ -39,6 +39,22 @@
+ #include "mm.h"
+ #include "tcm.h"
+ 
++#if defined(CONFIG_CPU_USE_DOMAINS) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++void modify_domain(unsigned int dom, unsigned int type)
++{
++	struct thread_info *thread = current_thread_info();
++	unsigned int domain = thread->cpu_domain;
++	/*
++	 * DOMAIN_MANAGER might be defined to some other value,
++	 * use the arch-defined constant
++	 */
++	domain &= ~domain_val(dom, 3);
++	thread->cpu_domain = domain | domain_val(dom, type);
++	set_domain(thread->cpu_domain);
++}
++EXPORT_SYMBOL(modify_domain);
++#endif
++
+ /*
+  * empty_zero_page is a special page that is used for
+  * zero-initialized data and COW.
+@@ -235,7 +251,15 @@ __setup("noalign", noalign_setup);
+ #define PROT_PTE_S2_DEVICE	PROT_PTE_DEVICE
+ #define PROT_SECT_DEVICE	PMD_TYPE_SECT|PMD_SECT_AP_WRITE
+ 
+-static struct mem_type mem_types[] = {
++#ifdef CONFIG_PAX_KERNEXEC
++#define L_PTE_KERNEXEC		L_PTE_RDONLY
++#define PMD_SECT_KERNEXEC	PMD_SECT_RDONLY
++#else
++#define L_PTE_KERNEXEC		L_PTE_DIRTY
++#define PMD_SECT_KERNEXEC	PMD_SECT_AP_WRITE
++#endif
++
++static struct mem_type mem_types[] __read_only = {
+ 	[MT_DEVICE] = {		  /* Strongly ordered / ARMv6 shared device */
+ 		.prot_pte	= PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED |
+ 				  L_PTE_SHARED,
+@@ -264,19 +288,19 @@ static struct mem_type mem_types[] = {
+ 		.prot_sect	= PROT_SECT_DEVICE,
+ 		.domain		= DOMAIN_IO,
+ 	},
+-	[MT_UNCACHED] = {
++	[MT_UNCACHED_RW] = {
+ 		.prot_pte	= PROT_PTE_DEVICE,
+ 		.prot_l1	= PMD_TYPE_TABLE,
+ 		.prot_sect	= PMD_TYPE_SECT | PMD_SECT_XN,
+ 		.domain		= DOMAIN_IO,
+ 	},
+-	[MT_CACHECLEAN] = {
+-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
++	[MT_CACHECLEAN_RO] = {
++		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_RDONLY,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
+ #ifndef CONFIG_ARM_LPAE
+-	[MT_MINICLEAN] = {
+-		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN | PMD_SECT_MINICACHE,
++	[MT_MINICLEAN_RO] = {
++		.prot_sect = PMD_TYPE_SECT | PMD_SECT_MINICACHE | PMD_SECT_XN | PMD_SECT_RDONLY,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
+ #endif
+@@ -284,15 +308,15 @@ static struct mem_type mem_types[] = {
+ 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+ 				L_PTE_RDONLY,
+ 		.prot_l1   = PMD_TYPE_TABLE,
+-		.domain    = DOMAIN_USER,
++		.domain    = DOMAIN_VECTORS,
+ 	},
+ 	[MT_HIGH_VECTORS] = {
+ 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+ 				L_PTE_USER | L_PTE_RDONLY,
+ 		.prot_l1   = PMD_TYPE_TABLE,
+-		.domain    = DOMAIN_USER,
++		.domain    = DOMAIN_VECTORS,
+ 	},
+-	[MT_MEMORY_RWX] = {
++	[__MT_MEMORY_RWX] = {
+ 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
+ 		.prot_l1   = PMD_TYPE_TABLE,
+ 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
+@@ -305,17 +329,30 @@ static struct mem_type mem_types[] = {
+ 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
+-	[MT_ROM] = {
+-		.prot_sect = PMD_TYPE_SECT,
++	[MT_MEMORY_RX] = {
++		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
++		.prot_l1   = PMD_TYPE_TABLE,
++		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
++		.domain	   = DOMAIN_KERNEL,
++	},
++	[MT_ROM_RX] = {
++		.prot_sect = PMD_TYPE_SECT | PMD_SECT_RDONLY,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
+-	[MT_MEMORY_RWX_NONCACHED] = {
++	[MT_MEMORY_RW_NONCACHED] = {
+ 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+ 				L_PTE_MT_BUFFERABLE,
+ 		.prot_l1   = PMD_TYPE_TABLE,
+ 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
++	[MT_MEMORY_RX_NONCACHED] = {
++		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC |
++				L_PTE_MT_BUFFERABLE,
++		.prot_l1   = PMD_TYPE_TABLE,
++		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
++		.domain    = DOMAIN_KERNEL,
++	},
+ 	[MT_MEMORY_RW_DTCM] = {
+ 		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+ 				L_PTE_XN,
+@@ -323,9 +360,10 @@ static struct mem_type mem_types[] = {
+ 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
+-	[MT_MEMORY_RWX_ITCM] = {
+-		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY,
++	[MT_MEMORY_RX_ITCM] = {
++		.prot_pte  = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_KERNEXEC,
+ 		.prot_l1   = PMD_TYPE_TABLE,
++		.prot_sect = PMD_TYPE_SECT | PMD_SECT_KERNEXEC,
+ 		.domain    = DOMAIN_KERNEL,
+ 	},
+ 	[MT_MEMORY_RW_SO] = {
+@@ -534,9 +572,14 @@ static void __init build_mem_type_table(void)
+ 		 * Mark cache clean areas and XIP ROM read only
+ 		 * from SVC mode and no access from userspace.
+ 		 */
+-		mem_types[MT_ROM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+-		mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+-		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
++		mem_types[MT_ROM_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
++#ifdef CONFIG_PAX_KERNEXEC
++		mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
++		mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
++		mem_types[MT_MEMORY_RX_ITCM].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
++#endif
++		mem_types[MT_MINICLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
++		mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+ #endif
+ 
+ 		if (is_smp()) {
+@@ -552,13 +595,17 @@ static void __init build_mem_type_table(void)
+ 			mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED;
+ 			mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
+ 			mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
+-			mem_types[MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
+-			mem_types[MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
++			mem_types[__MT_MEMORY_RWX].prot_sect |= PMD_SECT_S;
++			mem_types[__MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED;
+ 			mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_S;
+ 			mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_SHARED;
++			mem_types[MT_MEMORY_RX].prot_sect |= PMD_SECT_S;
++			mem_types[MT_MEMORY_RX].prot_pte |= L_PTE_SHARED;
+ 			mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED;
+-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_S;
+-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_pte |= L_PTE_SHARED;
++			mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_S;
++			mem_types[MT_MEMORY_RW_NONCACHED].prot_pte |= L_PTE_SHARED;
++			mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_S;
++			mem_types[MT_MEMORY_RX_NONCACHED].prot_pte |= L_PTE_SHARED;
+ 		}
+ 	}
+ 
+@@ -569,15 +616,20 @@ static void __init build_mem_type_table(void)
+ 	if (cpu_arch >= CPU_ARCH_ARMv6) {
+ 		if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) {
+ 			/* Non-cacheable Normal is XCB = 001 */
+-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
++			mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
++				PMD_SECT_BUFFERED;
++			mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
+ 				PMD_SECT_BUFFERED;
+ 		} else {
+ 			/* For both ARMv6 and non-TEX-remapping ARMv7 */
+-			mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |=
++			mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |=
++				PMD_SECT_TEX(1);
++			mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |=
+ 				PMD_SECT_TEX(1);
+ 		}
+ 	} else {
+-		mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
++		mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
++		mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE;
+ 	}
+ 
+ #ifdef CONFIG_ARM_LPAE
+@@ -593,6 +645,8 @@ static void __init build_mem_type_table(void)
+ 	vecs_pgprot |= PTE_EXT_AF;
+ #endif
+ 
++	user_pgprot |= __supported_pte_mask;
++
+ 	for (i = 0; i < 16; i++) {
+ 		pteval_t v = pgprot_val(protection_map[i]);
+ 		protection_map[i] = __pgprot(v | user_pgprot);
+@@ -610,21 +664,24 @@ static void __init build_mem_type_table(void)
+ 
+ 	mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
+ 	mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
+-	mem_types[MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
+-	mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot;
++	mem_types[__MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd;
++	mem_types[__MT_MEMORY_RWX].prot_pte |= kern_pgprot;
+ 	mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd;
+ 	mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot;
++	mem_types[MT_MEMORY_RX].prot_sect |= ecc_mask | cp->pmd;
++	mem_types[MT_MEMORY_RX].prot_pte |= kern_pgprot;
+ 	mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot;
+-	mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= ecc_mask;
+-	mem_types[MT_ROM].prot_sect |= cp->pmd;
++	mem_types[MT_MEMORY_RW_NONCACHED].prot_sect |= ecc_mask;
++	mem_types[MT_MEMORY_RX_NONCACHED].prot_sect |= ecc_mask;
++	mem_types[MT_ROM_RX].prot_sect |= cp->pmd;
+ 
+ 	switch (cp->pmd) {
+ 	case PMD_SECT_WT:
+-		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WT;
++		mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WT;
+ 		break;
+ 	case PMD_SECT_WB:
+ 	case PMD_SECT_WBWA:
+-		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WB;
++		mem_types[MT_CACHECLEAN_RO].prot_sect |= PMD_SECT_WB;
+ 		break;
+ 	}
+ 	pr_info("Memory policy: %sData cache %s\n",
+@@ -842,7 +899,7 @@ static void __init create_mapping(struct map_desc *md)
+ 		return;
+ 	}
+ 
+-	if ((md->type == MT_DEVICE || md->type == MT_ROM) &&
++	if ((md->type == MT_DEVICE || md->type == MT_ROM_RX) &&
+ 	    md->virtual >= PAGE_OFFSET &&
+ 	    (md->virtual < VMALLOC_START || md->virtual >= VMALLOC_END)) {
+ 		printk(KERN_WARNING "BUG: mapping for 0x%08llx"
+@@ -1257,18 +1314,15 @@ void __init arm_mm_memblock_reserve(void)
+  * called function.  This means you can't use any function or debugging
+  * method which may touch any device, otherwise the kernel _will_ crash.
+  */
++
++static char vectors[PAGE_SIZE * 2] __read_only __aligned(PAGE_SIZE);
++
+ static void __init devicemaps_init(const struct machine_desc *mdesc)
+ {
+ 	struct map_desc map;
+ 	unsigned long addr;
+-	void *vectors;
+ 
+-	/*
+-	 * Allocate the vector page early.
+-	 */
+-	vectors = early_alloc(PAGE_SIZE * 2);
+-
+-	early_trap_init(vectors);
++	early_trap_init(&vectors);
+ 
+ 	for (addr = VMALLOC_START; addr; addr += PMD_SIZE)
+ 		pmd_clear(pmd_off_k(addr));
+@@ -1281,7 +1335,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
+ 	map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK);
+ 	map.virtual = MODULES_VADDR;
+ 	map.length = ((unsigned long)_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK;
+-	map.type = MT_ROM;
++	map.type = MT_ROM_RX;
+ 	create_mapping(&map);
+ #endif
+ 
+@@ -1292,14 +1346,14 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
+ 	map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS);
+ 	map.virtual = FLUSH_BASE;
+ 	map.length = SZ_1M;
+-	map.type = MT_CACHECLEAN;
++	map.type = MT_CACHECLEAN_RO;
+ 	create_mapping(&map);
+ #endif
+ #ifdef FLUSH_BASE_MINICACHE
+ 	map.pfn = __phys_to_pfn(FLUSH_BASE_PHYS + SZ_1M);
+ 	map.virtual = FLUSH_BASE_MINICACHE;
+ 	map.length = SZ_1M;
+-	map.type = MT_MINICLEAN;
++	map.type = MT_MINICLEAN_RO;
+ 	create_mapping(&map);
+ #endif
+ 
+@@ -1308,7 +1362,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc)
+ 	 * location (0xffff0000).  If we aren't using high-vectors, also
+ 	 * create a mapping at the low-vectors virtual address.
+ 	 */
+-	map.pfn = __phys_to_pfn(virt_to_phys(vectors));
++	map.pfn = __phys_to_pfn(virt_to_phys(&vectors));
+ 	map.virtual = 0xffff0000;
+ 	map.length = PAGE_SIZE;
+ #ifdef CONFIG_KUSER_HELPERS
+@@ -1365,8 +1419,10 @@ static void __init kmap_init(void)
+ static void __init map_lowmem(void)
+ {
+ 	struct memblock_region *reg;
++#ifndef CONFIG_PAX_KERNEXEC
+ 	unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
+ 	unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
++#endif
+ 
+ 	/* Map all the lowmem memory banks. */
+ 	for_each_memblock(memory, reg) {
+@@ -1379,11 +1435,48 @@ static void __init map_lowmem(void)
+ 		if (start >= end)
+ 			break;
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++		map.pfn = __phys_to_pfn(start);
++		map.virtual = __phys_to_virt(start);
++		map.length = end - start;
++
++		if (map.virtual <= (unsigned long)_stext && ((unsigned long)_end < (map.virtual + map.length))) {
++			struct map_desc kernel;
++			struct map_desc initmap;
++
++			/* when freeing initmem we will make this RW */
++			initmap.pfn = __phys_to_pfn(__pa(__init_begin));
++			initmap.virtual = (unsigned long)__init_begin;
++			initmap.length = _sdata - __init_begin;
++			initmap.type = __MT_MEMORY_RWX;
++			create_mapping(&initmap);
++
++			/* when freeing initmem we will make this RX */
++			kernel.pfn = __phys_to_pfn(__pa(_stext));
++			kernel.virtual = (unsigned long)_stext;
++			kernel.length = __init_begin - _stext;
++			kernel.type = __MT_MEMORY_RWX;
++			create_mapping(&kernel);
++
++			if (map.virtual < (unsigned long)_stext) {
++				map.length = (unsigned long)_stext - map.virtual;
++				map.type = __MT_MEMORY_RWX;
++				create_mapping(&map);
++			}
++
++			map.pfn = __phys_to_pfn(__pa(_sdata));
++			map.virtual = (unsigned long)_sdata;
++			map.length = end - __pa(_sdata);
++		}
++
++		map.type = MT_MEMORY_RW;
++		create_mapping(&map);
++#else
+ 		if (end < kernel_x_start || start >= kernel_x_end) {
+ 			map.pfn = __phys_to_pfn(start);
+ 			map.virtual = __phys_to_virt(start);
+ 			map.length = end - start;
+-			map.type = MT_MEMORY_RWX;
++			map.type = __MT_MEMORY_RWX;
+ 
+ 			create_mapping(&map);
+ 		} else {
+@@ -1400,7 +1493,7 @@ static void __init map_lowmem(void)
+ 			map.pfn = __phys_to_pfn(kernel_x_start);
+ 			map.virtual = __phys_to_virt(kernel_x_start);
+ 			map.length = kernel_x_end - kernel_x_start;
+-			map.type = MT_MEMORY_RWX;
++			map.type = __MT_MEMORY_RWX;
+ 
+ 			create_mapping(&map);
+ 
+@@ -1413,6 +1506,7 @@ static void __init map_lowmem(void)
+ 				create_mapping(&map);
+ 			}
+ 		}
++#endif
+ 	}
+ }
+ 
+diff --git a/arch/arm/plat-iop/setup.c b/arch/arm/plat-iop/setup.c
+index 5b217f4..c23f40e 100644
+--- a/arch/arm/plat-iop/setup.c
++++ b/arch/arm/plat-iop/setup.c
+@@ -24,7 +24,7 @@ static struct map_desc iop3xx_std_desc[] __initdata = {
+ 		.virtual	= IOP3XX_PERIPHERAL_VIRT_BASE,
+ 		.pfn		= __phys_to_pfn(IOP3XX_PERIPHERAL_PHYS_BASE),
+ 		.length		= IOP3XX_PERIPHERAL_SIZE,
+-		.type		= MT_UNCACHED,
++		.type		= MT_UNCACHED_RW,
+ 	 },
+ };
+ 
+diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
+index a5bc92d..0bb4730 100644
+--- a/arch/arm/plat-omap/sram.c
++++ b/arch/arm/plat-omap/sram.c
+@@ -93,6 +93,8 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
+ 	 * Looks like we need to preserve some bootloader code at the
+ 	 * beginning of SRAM for jumping to flash for reboot to work...
+ 	 */
++	pax_open_kernel();
+ 	memset_io(omap_sram_base + omap_sram_skip, 0,
+ 		  omap_sram_size - omap_sram_skip);
++	pax_close_kernel();
+ }
+diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
+index ce6d763..cfea917 100644
+--- a/arch/arm/plat-samsung/include/plat/dma-ops.h
++++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
+@@ -47,7 +47,7 @@ struct samsung_dma_ops {
+ 	int (*started)(unsigned ch);
+ 	int (*flush)(unsigned ch);
+ 	int (*stop)(unsigned ch);
+-};
++} __no_const;
+ 
+ extern void *samsung_dmadev_get_ops(void);
+ extern void *s3c_dma_get_ops(void);
+diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
+index 409ca37..10c87ad 100644
+--- a/arch/arm64/include/asm/barrier.h
++++ b/arch/arm64/include/asm/barrier.h
+@@ -40,7 +40,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	smp_mb();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
+index 6c0f684..5faea9d 100644
+--- a/arch/arm64/include/asm/uaccess.h
++++ b/arch/arm64/include/asm/uaccess.h
+@@ -99,6 +99,7 @@ static inline void set_fs(mm_segment_t fs)
+ 	flag;								\
+ })
+ 
++#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
+ #define access_ok(type, addr, size)	__range_ok(addr, size)
+ #define user_addr_max			get_fs
+ 
+diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
+index c3a58a1..78fbf54 100644
+--- a/arch/avr32/include/asm/cache.h
++++ b/arch/avr32/include/asm/cache.h
+@@ -1,8 +1,10 @@
+ #ifndef __ASM_AVR32_CACHE_H
+ #define __ASM_AVR32_CACHE_H
+ 
++#include <linux/const.h>
++
+ #define L1_CACHE_SHIFT 5
+-#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ /*
+  * Memory returned by kmalloc() may be used for DMA, so we must make
+diff --git a/arch/avr32/include/asm/elf.h b/arch/avr32/include/asm/elf.h
+index d232888..87c8df1 100644
+--- a/arch/avr32/include/asm/elf.h
++++ b/arch/avr32/include/asm/elf.h
+@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
+    the loader.  We need to make sure that it is out of the way of the program
+    that it will "exec", and that there is sufficient room for the brk.  */
+ 
+-#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
++#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	0x00001000UL
++
++#define PAX_DELTA_MMAP_LEN	15
++#define PAX_DELTA_STACK_LEN	15
++#endif
+ 
+ /* This yields a mask that user programs can use to figure out what
+    instruction set this CPU supports.  This could be done in user space,
+diff --git a/arch/avr32/include/asm/kmap_types.h b/arch/avr32/include/asm/kmap_types.h
+index 479330b..53717a8 100644
+--- a/arch/avr32/include/asm/kmap_types.h
++++ b/arch/avr32/include/asm/kmap_types.h
+@@ -2,9 +2,9 @@
+ #define __ASM_AVR32_KMAP_TYPES_H
+ 
+ #ifdef CONFIG_DEBUG_HIGHMEM
+-# define KM_TYPE_NR 29
++# define KM_TYPE_NR 30
+ #else
+-# define KM_TYPE_NR 14
++# define KM_TYPE_NR 15
+ #endif
+ 
+ #endif /* __ASM_AVR32_KMAP_TYPES_H */
+diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
+index d223a8b..69c5210 100644
+--- a/arch/avr32/mm/fault.c
++++ b/arch/avr32/mm/fault.c
+@@ -41,6 +41,23 @@ static inline int notify_page_fault(struct pt_regs *regs, int trap)
+ 
+ int exception_trace = 1;
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 20; i++) {
++		unsigned char c;
++		if (get_user(c, (unsigned char *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%02x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ /*
+  * This routine handles page faults. It determines the address and the
+  * problem, and then passes it off to one of the appropriate routines.
+@@ -178,6 +195,16 @@ bad_area:
+ 	up_read(&mm->mmap_sem);
+ 
+ 	if (user_mode(regs)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if (mm->pax_flags & MF_PAX_PAGEEXEC) {
++			if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) {
++				pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp);
++				do_group_exit(SIGKILL);
++			}
++		}
++#endif
++
+ 		if (exception_trace && printk_ratelimit())
+ 			printk("%s%s[%d]: segfault at %08lx pc %08lx "
+ 			       "sp %08lx ecr %lu\n",
+diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
+index 568885a..f8008df 100644
+--- a/arch/blackfin/include/asm/cache.h
++++ b/arch/blackfin/include/asm/cache.h
+@@ -7,6 +7,7 @@
+ #ifndef __ARCH_BLACKFIN_CACHE_H
+ #define __ARCH_BLACKFIN_CACHE_H
+ 
++#include <linux/const.h>
+ #include <linux/linkage.h>	/* for asmlinkage */
+ 
+ /*
+@@ -14,7 +15,7 @@
+  * Blackfin loads 32 bytes for cache
+  */
+ #define L1_CACHE_SHIFT	5
+-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
+ #define SMP_CACHE_BYTES	L1_CACHE_BYTES
+ 
+ #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
+diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
+index aea2718..3639a60 100644
+--- a/arch/cris/include/arch-v10/arch/cache.h
++++ b/arch/cris/include/arch-v10/arch/cache.h
+@@ -1,8 +1,9 @@
+ #ifndef _ASM_ARCH_CACHE_H
+ #define _ASM_ARCH_CACHE_H
+ 
++#include <linux/const.h>
+ /* Etrax 100LX have 32-byte cache-lines. */
+-#define L1_CACHE_BYTES 32
+ #define L1_CACHE_SHIFT 5
++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #endif /* _ASM_ARCH_CACHE_H */
+diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
+index 7caf25d..ee65ac5 100644
+--- a/arch/cris/include/arch-v32/arch/cache.h
++++ b/arch/cris/include/arch-v32/arch/cache.h
+@@ -1,11 +1,12 @@
+ #ifndef _ASM_CRIS_ARCH_CACHE_H
+ #define _ASM_CRIS_ARCH_CACHE_H
+ 
++#include <linux/const.h>
+ #include <arch/hwregs/dma.h>
+ 
+ /* A cache-line is 32 bytes. */
+-#define L1_CACHE_BYTES 32
+ #define L1_CACHE_SHIFT 5
++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define __read_mostly __attribute__((__section__(".data..read_mostly")))
+ 
+diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h
+index b86329d..6709906 100644
+--- a/arch/frv/include/asm/atomic.h
++++ b/arch/frv/include/asm/atomic.h
+@@ -186,6 +186,16 @@ static inline void atomic64_dec(atomic64_t *v)
+ #define atomic64_cmpxchg(v, old, new)	(__cmpxchg_64(old, new, &(v)->counter))
+ #define atomic64_xchg(v, new)		(__xchg_64(new, &(v)->counter))
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+ {
+ 	int c, old;
+diff --git a/arch/frv/include/asm/cache.h b/arch/frv/include/asm/cache.h
+index 2797163..c2a401df9 100644
+--- a/arch/frv/include/asm/cache.h
++++ b/arch/frv/include/asm/cache.h
+@@ -12,10 +12,11 @@
+ #ifndef __ASM_CACHE_H
+ #define __ASM_CACHE_H
+ 
++#include <linux/const.h>
+ 
+ /* bytes per L1 cache line */
+ #define L1_CACHE_SHIFT		(CONFIG_FRV_L1_CACHE_SHIFT)
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define __cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
+ #define ____cacheline_aligned	__attribute__((aligned(L1_CACHE_BYTES)))
+diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
+index 43901f2..0d8b865 100644
+--- a/arch/frv/include/asm/kmap_types.h
++++ b/arch/frv/include/asm/kmap_types.h
+@@ -2,6 +2,6 @@
+ #ifndef _ASM_KMAP_TYPES_H
+ #define _ASM_KMAP_TYPES_H
+ 
+-#define KM_TYPE_NR 17
++#define KM_TYPE_NR 18
+ 
+ #endif
+diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
+index 836f147..4cf23f5 100644
+--- a/arch/frv/mm/elf-fdpic.c
++++ b/arch/frv/mm/elf-fdpic.c
+@@ -61,6 +61,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ {
+ 	struct vm_area_struct *vma;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
+ 
+ 	if (len > TASK_SIZE)
+ 		return -ENOMEM;
+@@ -73,8 +74,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ 	if (addr) {
+ 		addr = PAGE_ALIGN(addr);
+ 		vma = find_vma(current->mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			goto success;
+ 	}
+ 
+@@ -85,6 +85,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ 	info.high_limit = (current->mm->start_stack - 0x00200000);
+ 	info.align_mask = 0;
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 	if (!(addr & ~PAGE_MASK))
+ 		goto success;
+diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
+index f4ca594..adc72fd6 100644
+--- a/arch/hexagon/include/asm/cache.h
++++ b/arch/hexagon/include/asm/cache.h
+@@ -21,9 +21,11 @@
+ #ifndef __ASM_CACHE_H
+ #define __ASM_CACHE_H
+ 
++#include <linux/const.h>
++
+ /* Bytes per L1 cache line */
+-#define L1_CACHE_SHIFT		(5)
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_SHIFT		5
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define __cacheline_aligned	__aligned(L1_CACHE_BYTES)
+ #define ____cacheline_aligned	__aligned(L1_CACHE_BYTES)
+diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
+index 0c8e553..112d734 100644
+--- a/arch/ia64/Kconfig
++++ b/arch/ia64/Kconfig
+@@ -544,6 +544,7 @@ source "drivers/sn/Kconfig"
+ config KEXEC
+ 	bool "kexec system call"
+ 	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
++	depends on !GRKERNSEC_KMEM
+ 	help
+ 	  kexec is a system call that implements the ability to shutdown your
+ 	  current kernel, and to start another kernel.  It is like a reboot
+diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
+index f37238f..810b95f 100644
+--- a/arch/ia64/Makefile
++++ b/arch/ia64/Makefile
+@@ -99,5 +99,6 @@ endef
+ archprepare: make_nr_irqs_h FORCE
+ PHONY += make_nr_irqs_h FORCE
+ 
++make_nr_irqs_h: KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS))
+ make_nr_irqs_h: FORCE
+ 	$(Q)$(MAKE) $(build)=arch/ia64/kernel include/generated/nr-irqs.h
+diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
+index 6e6fe18..a6ae668 100644
+--- a/arch/ia64/include/asm/atomic.h
++++ b/arch/ia64/include/asm/atomic.h
+@@ -208,6 +208,16 @@ atomic64_add_negative (__s64 i, atomic64_t *v)
+ #define atomic64_inc(v)			atomic64_add(1, (v))
+ #define atomic64_dec(v)			atomic64_sub(1, (v))
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ /* Atomic operations are already serializing */
+ #define smp_mb__before_atomic_dec()	barrier()
+ #define smp_mb__after_atomic_dec()	barrier()
+diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
+index d0a69aa..142f878 100644
+--- a/arch/ia64/include/asm/barrier.h
++++ b/arch/ia64/include/asm/barrier.h
+@@ -64,7 +64,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	barrier();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
+index 988254a..e1ee885 100644
+--- a/arch/ia64/include/asm/cache.h
++++ b/arch/ia64/include/asm/cache.h
+@@ -1,6 +1,7 @@
+ #ifndef _ASM_IA64_CACHE_H
+ #define _ASM_IA64_CACHE_H
+ 
++#include <linux/const.h>
+ 
+ /*
+  * Copyright (C) 1998-2000 Hewlett-Packard Co
+@@ -9,7 +10,7 @@
+ 
+ /* Bytes per L1 (data) cache line.  */
+ #define L1_CACHE_SHIFT		CONFIG_IA64_L1_CACHE_SHIFT
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #ifdef CONFIG_SMP
+ # define SMP_CACHE_SHIFT	L1_CACHE_SHIFT
+diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
+index 5a83c5c..4d7f553 100644
+--- a/arch/ia64/include/asm/elf.h
++++ b/arch/ia64/include/asm/elf.h
+@@ -42,6 +42,13 @@
+  */
+ #define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x800000000UL)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL)
++
++#define PAX_DELTA_MMAP_LEN	(current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
++#define PAX_DELTA_STACK_LEN	(current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13)
++#endif
++
+ #define PT_IA_64_UNWIND		0x70000001
+ 
+ /* IA-64 relocations: */
+diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
+index 5767cdf..7462574 100644
+--- a/arch/ia64/include/asm/pgalloc.h
++++ b/arch/ia64/include/asm/pgalloc.h
+@@ -39,6 +39,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
+ 	pgd_val(*pgd_entry) = __pa(pud);
+ }
+ 
++static inline void
++pgd_populate_kernel(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
++{
++	pgd_populate(mm, pgd_entry, pud);
++}
++
+ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+ {
+ 	return quicklist_alloc(0, GFP_KERNEL, NULL);
+@@ -57,6 +63,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
+ 	pud_val(*pud_entry) = __pa(pmd);
+ }
+ 
++static inline void
++pud_populate_kernel(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
++{
++	pud_populate(mm, pud_entry, pmd);
++}
++
+ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+ {
+ 	return quicklist_alloc(0, GFP_KERNEL, NULL);
+diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
+index 7935115..c0eca6a 100644
+--- a/arch/ia64/include/asm/pgtable.h
++++ b/arch/ia64/include/asm/pgtable.h
+@@ -12,7 +12,7 @@
+  *	David Mosberger-Tang <davidm@hpl.hp.com>
+  */
+ 
+-
++#include <linux/const.h>
+ #include <asm/mman.h>
+ #include <asm/page.h>
+ #include <asm/processor.h>
+@@ -142,6 +142,17 @@
+ #define PAGE_READONLY	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+ #define PAGE_COPY	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
+ #define PAGE_COPY_EXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++# define PAGE_SHARED_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW)
++# define PAGE_READONLY_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
++# define PAGE_COPY_NOEXEC	__pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R)
++#else
++# define PAGE_SHARED_NOEXEC	PAGE_SHARED
++# define PAGE_READONLY_NOEXEC	PAGE_READONLY
++# define PAGE_COPY_NOEXEC	PAGE_COPY
++#endif
++
+ #define PAGE_GATE	__pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX)
+ #define PAGE_KERNEL	__pgprot(__DIRTY_BITS  | _PAGE_PL_0 | _PAGE_AR_RWX)
+ #define PAGE_KERNELRX	__pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX)
+diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
+index 45698cd..e8e2dbc 100644
+--- a/arch/ia64/include/asm/spinlock.h
++++ b/arch/ia64/include/asm/spinlock.h
+@@ -71,7 +71,7 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
+ 	unsigned short	*p = (unsigned short *)&lock->lock + 1, tmp;
+ 
+ 	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
+-	ACCESS_ONCE(*p) = (tmp + 2) & ~1;
++	ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1;
+ }
+ 
+ static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock)
+diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
+index 449c8c0..3d4b1e9 100644
+--- a/arch/ia64/include/asm/uaccess.h
++++ b/arch/ia64/include/asm/uaccess.h
+@@ -70,6 +70,7 @@
+ 	 && ((segment).seg == KERNEL_DS.seg						\
+ 	     || likely(REGION_OFFSET((unsigned long) (addr)) < RGN_MAP_LIMIT)));	\
+ })
++#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
+ #define access_ok(type, addr, size)	__access_ok((addr), (size), get_fs())
+ 
+ /*
+@@ -240,12 +241,24 @@ extern unsigned long __must_check __copy_user (void __user *to, const void __use
+ static inline unsigned long
+ __copy_to_user (void __user *to, const void *from, unsigned long count)
+ {
++	if (count > INT_MAX)
++		return count;
++
++	if (!__builtin_constant_p(count))
++		check_object_size(from, count, true);
++
+ 	return __copy_user(to, (__force void __user *) from, count);
+ }
+ 
+ static inline unsigned long
+ __copy_from_user (void *to, const void __user *from, unsigned long count)
+ {
++	if (count > INT_MAX)
++		return count;
++
++	if (!__builtin_constant_p(count))
++		check_object_size(to, count, false);
++
+ 	return __copy_user((__force void __user *) to, from, count);
+ }
+ 
+@@ -255,10 +268,13 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
+ ({											\
+ 	void __user *__cu_to = (to);							\
+ 	const void *__cu_from = (from);							\
+-	long __cu_len = (n);								\
++	unsigned long __cu_len = (n);							\
+ 											\
+-	if (__access_ok(__cu_to, __cu_len, get_fs()))					\
++	if (__cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) {		\
++		if (!__builtin_constant_p(n))						\
++			check_object_size(__cu_from, __cu_len, true);			\
+ 		__cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len);	\
++	}										\
+ 	__cu_len;									\
+ })
+ 
+@@ -266,11 +282,14 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
+ ({											\
+ 	void *__cu_to = (to);								\
+ 	const void __user *__cu_from = (from);						\
+-	long __cu_len = (n);								\
++	unsigned long __cu_len = (n);							\
+ 											\
+ 	__chk_user_ptr(__cu_from);							\
+-	if (__access_ok(__cu_from, __cu_len, get_fs()))					\
++	if (__cu_len <= INT_MAX  && __access_ok(__cu_from, __cu_len, get_fs())) {	\
++		if (!__builtin_constant_p(n))						\
++			check_object_size(__cu_to, __cu_len, false);			\
+ 		__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len);	\
++	}										\
+ 	__cu_len;									\
+ })
+ 
+diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
+index 24603be..948052d 100644
+--- a/arch/ia64/kernel/module.c
++++ b/arch/ia64/kernel/module.c
+@@ -307,8 +307,7 @@ plt_target (struct plt_entry *plt)
+ void
+ module_free (struct module *mod, void *module_region)
+ {
+-	if (mod && mod->arch.init_unw_table &&
+-	    module_region == mod->module_init) {
++	if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) {
+ 		unw_remove_unwind_table(mod->arch.init_unw_table);
+ 		mod->arch.init_unw_table = NULL;
+ 	}
+@@ -494,15 +493,39 @@ module_frob_arch_sections (Elf_Ehdr *ehdr, Elf_Shdr *sechdrs, char *secstrings,
+ }
+ 
+ static inline int
++in_init_rx (const struct module *mod, uint64_t addr)
++{
++	return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx;
++}
++
++static inline int
++in_init_rw (const struct module *mod, uint64_t addr)
++{
++	return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw;
++}
++
++static inline int
+ in_init (const struct module *mod, uint64_t addr)
+ {
+-	return addr - (uint64_t) mod->module_init < mod->init_size;
++	return in_init_rx(mod, addr) || in_init_rw(mod, addr);
++}
++
++static inline int
++in_core_rx (const struct module *mod, uint64_t addr)
++{
++	return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx;
++}
++
++static inline int
++in_core_rw (const struct module *mod, uint64_t addr)
++{
++	return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw;
+ }
+ 
+ static inline int
+ in_core (const struct module *mod, uint64_t addr)
+ {
+-	return addr - (uint64_t) mod->module_core < mod->core_size;
++	return in_core_rx(mod, addr) || in_core_rw(mod, addr);
+ }
+ 
+ static inline int
+@@ -685,7 +708,14 @@ do_reloc (struct module *mod, uint8_t r_type, Elf64_Sym *sym, uint64_t addend,
+ 		break;
+ 
+ 	      case RV_BDREL:
+-		val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core);
++		if (in_init_rx(mod, val))
++			val -= (uint64_t) mod->module_init_rx;
++		else if (in_init_rw(mod, val))
++			val -= (uint64_t) mod->module_init_rw;
++		else if (in_core_rx(mod, val))
++			val -= (uint64_t) mod->module_core_rx;
++		else if (in_core_rw(mod, val))
++			val -= (uint64_t) mod->module_core_rw;
+ 		break;
+ 
+ 	      case RV_LTV:
+@@ -820,15 +850,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, const char *strtab, unsigned int symind
+ 		 *     addresses have been selected...
+ 		 */
+ 		uint64_t gp;
+-		if (mod->core_size > MAX_LTOFF)
++		if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF)
+ 			/*
+ 			 * This takes advantage of fact that SHF_ARCH_SMALL gets allocated
+ 			 * at the end of the module.
+ 			 */
+-			gp = mod->core_size - MAX_LTOFF / 2;
++			gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2;
+ 		else
+-			gp = mod->core_size / 2;
+-		gp = (uint64_t) mod->module_core + ((gp + 7) & -8);
++			gp = (mod->core_size_rx + mod->core_size_rw) / 2;
++		gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8);
+ 		mod->arch.gp = gp;
+ 		DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp);
+ 	}
+diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c
+index ab33328..f39506c 100644
+--- a/arch/ia64/kernel/palinfo.c
++++ b/arch/ia64/kernel/palinfo.c
+@@ -980,7 +980,7 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata palinfo_cpu_notifier =
++static struct notifier_block palinfo_cpu_notifier =
+ {
+ 	.notifier_call = palinfo_cpu_callback,
+ 	.priority = 0,
+diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
+index 41e33f8..65180b2a 100644
+--- a/arch/ia64/kernel/sys_ia64.c
++++ b/arch/ia64/kernel/sys_ia64.c
+@@ -28,6 +28,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
+ 	unsigned long align_mask = 0;
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 
+ 	if (len > RGN_MAP_LIMIT)
+ 		return -ENOMEM;
+@@ -43,6 +44,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
+ 	if (REGION_NUMBER(addr) == RGN_HPAGE)
+ 		addr = 0;
+ #endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (mm->pax_flags & MF_PAX_RANDMMAP)
++		addr = mm->free_area_cache;
++	else
++#endif
++
+ 	if (!addr)
+ 		addr = TASK_UNMAPPED_BASE;
+ 
+@@ -61,6 +69,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = align_mask;
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
+index 84f8a52..7c76178 100644
+--- a/arch/ia64/kernel/vmlinux.lds.S
++++ b/arch/ia64/kernel/vmlinux.lds.S
+@@ -192,7 +192,7 @@ SECTIONS {
+ 	/* Per-cpu data: */
+ 	. = ALIGN(PERCPU_PAGE_SIZE);
+ 	PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu)
+-	__phys_per_cpu_start = __per_cpu_load;
++	__phys_per_cpu_start = per_cpu_load;
+ 	/*
+ 	 * ensure percpu data fits
+ 	 * into percpu page size
+diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
+index ba5ba7a..36e9d3a 100644
+--- a/arch/ia64/mm/fault.c
++++ b/arch/ia64/mm/fault.c
+@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned long address)
+ 	return pte_present(pte);
+ }
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 8; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ #	define VM_READ_BIT	0
+ #	define VM_WRITE_BIT	1
+ #	define VM_EXEC_BIT	2
+@@ -151,8 +168,21 @@ retry:
+ 	if (((isr >> IA64_ISR_R_BIT) & 1UL) && (!(vma->vm_flags & (VM_READ | VM_WRITE))))
+ 		goto bad_area;
+ 
+-	if ((vma->vm_flags & mask) != mask)
++	if ((vma->vm_flags & mask) != mask) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) {
++			if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip)
++				goto bad_area;
++
++			up_read(&mm->mmap_sem);
++			pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12);
++			do_group_exit(SIGKILL);
++		}
++#endif
++
+ 		goto bad_area;
++	}
+ 
+ 	/*
+ 	 * If for any reason at all we couldn't handle the fault, make
+diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
+index 76069c1..c2aa816 100644
+--- a/arch/ia64/mm/hugetlbpage.c
++++ b/arch/ia64/mm/hugetlbpage.c
+@@ -149,6 +149,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
+ 		unsigned long pgoff, unsigned long flags)
+ {
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(current->mm, file, flags);
+ 
+ 	if (len > RGN_MAP_LIMIT)
+ 		return -ENOMEM;
+@@ -172,6 +173,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
+ 	info.high_limit = HPAGE_REGION_BASE + RGN_MAP_LIMIT;
+ 	info.align_mask = PAGE_MASK & (HPAGE_SIZE - 1);
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
+index 25c3502..560dae7 100644
+--- a/arch/ia64/mm/init.c
++++ b/arch/ia64/mm/init.c
+@@ -120,6 +120,19 @@ ia64_init_addr_space (void)
+ 		vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
+ 		vma->vm_end = vma->vm_start + PAGE_SIZE;
+ 		vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if (current->mm->pax_flags & MF_PAX_PAGEEXEC) {
++			vma->vm_flags &= ~VM_EXEC;
++
++#ifdef CONFIG_PAX_MPROTECT
++			if (current->mm->pax_flags & MF_PAX_MPROTECT)
++				vma->vm_flags &= ~VM_MAYEXEC;
++#endif
++
++		}
++#endif
++
+ 		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+ 		down_write(&current->mm->mmap_sem);
+ 		if (insert_vm_struct(current->mm, vma)) {
+diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
+index 40b3ee98..8c2c112 100644
+--- a/arch/m32r/include/asm/cache.h
++++ b/arch/m32r/include/asm/cache.h
+@@ -1,8 +1,10 @@
+ #ifndef _ASM_M32R_CACHE_H
+ #define _ASM_M32R_CACHE_H
+ 
++#include <linux/const.h>
++
+ /* L1 cache line size */
+ #define L1_CACHE_SHIFT		4
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #endif  /* _ASM_M32R_CACHE_H */
+diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
+index 82abd15..d95ae5d 100644
+--- a/arch/m32r/lib/usercopy.c
++++ b/arch/m32r/lib/usercopy.c
+@@ -14,6 +14,9 @@
+ unsigned long
+ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	prefetch(from);
+ 	if (access_ok(VERIFY_WRITE, to, n))
+ 		__copy_user(to,from,n);
+@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, const void *from, unsigned long n)
+ unsigned long
+ __generic_copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	prefetchw(to);
+ 	if (access_ok(VERIFY_READ, from, n))
+ 		__copy_user_zeroing(to,from,n);
+diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
+index 0395c51..5f26031 100644
+--- a/arch/m68k/include/asm/cache.h
++++ b/arch/m68k/include/asm/cache.h
+@@ -4,9 +4,11 @@
+ #ifndef __ARCH_M68K_CACHE_H
+ #define __ARCH_M68K_CACHE_H
+ 
++#include <linux/const.h>
++
+ /* bytes per L1 cache line */
+ #define        L1_CACHE_SHIFT  4
+-#define        L1_CACHE_BYTES  (1<< L1_CACHE_SHIFT)
++#define        L1_CACHE_BYTES  (_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
+ 
+diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h
+index 2d6f0de..de5f5ac 100644
+--- a/arch/metag/include/asm/barrier.h
++++ b/arch/metag/include/asm/barrier.h
+@@ -89,7 +89,7 @@ static inline void fence(void)
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	smp_mb();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
+index 3c52fa6..11b2ad8 100644
+--- a/arch/metag/mm/hugetlbpage.c
++++ b/arch/metag/mm/hugetlbpage.c
+@@ -200,6 +200,7 @@ hugetlb_get_unmapped_area_new_pmd(unsigned long len)
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = PAGE_MASK & HUGEPT_MASK;
+ 	info.align_offset = 0;
++	info.threadstack_offset = 0;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
+index 4efe96a..60e8699 100644
+--- a/arch/microblaze/include/asm/cache.h
++++ b/arch/microblaze/include/asm/cache.h
+@@ -13,11 +13,12 @@
+ #ifndef _ASM_MICROBLAZE_CACHE_H
+ #define _ASM_MICROBLAZE_CACHE_H
+ 
++#include <linux/const.h>
+ #include <asm/registers.h>
+ 
+ #define L1_CACHE_SHIFT 5
+ /* word-granular cache in microblaze */
+-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define SMP_CACHE_BYTES	L1_CACHE_BYTES
+ 
+diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
+index 95fa1f1..56a6fa2 100644
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -2298,6 +2298,7 @@ source "kernel/Kconfig.preempt"
+ 
+ config KEXEC
+ 	bool "Kexec system call"
++	depends on !GRKERNSEC_KMEM
+ 	help
+ 	  kexec is a system call that implements the ability to shutdown your
+ 	  current kernel, and to start another kernel.  It is like a reboot
+diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
+index 02f2444..506969c 100644
+--- a/arch/mips/cavium-octeon/dma-octeon.c
++++ b/arch/mips/cavium-octeon/dma-octeon.c
+@@ -199,7 +199,7 @@ static void octeon_dma_free_coherent(struct device *dev, size_t size,
+ 	if (dma_release_from_coherent(dev, order, vaddr))
+ 		return;
+ 
+-	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
++	swiotlb_free_coherent(dev, size, vaddr, dma_handle, attrs);
+ }
+ 
+ static dma_addr_t octeon_unity_phys_to_dma(struct device *dev, phys_addr_t paddr)
+diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
+index 7eed2f2..c4e385d 100644
+--- a/arch/mips/include/asm/atomic.h
++++ b/arch/mips/include/asm/atomic.h
+@@ -21,15 +21,39 @@
+ #include <asm/cmpxchg.h>
+ #include <asm/war.h>
+ 
++#ifdef CONFIG_GENERIC_ATOMIC64
++#include <asm-generic/atomic64.h>
++#endif
++
+ #define ATOMIC_INIT(i)	  { (i) }
+ 
++#ifdef CONFIG_64BIT
++#define _ASM_EXTABLE(from, to)		\
++"	.section __ex_table,\"a\"\n"	\
++"	.dword	" #from ", " #to"\n"	\
++"	.previous\n"
++#else
++#define _ASM_EXTABLE(from, to)		\
++"	.section __ex_table,\"a\"\n"	\
++"	.word	" #from ", " #to"\n"	\
++"	.previous\n"
++#endif
++
+ /*
+  * atomic_read - read atomic variable
+  * @v: pointer of type atomic_t
+  *
+  * Atomically reads the value of @v.
+  */
+-#define atomic_read(v)		(*(volatile int *)&(v)->counter)
++static inline int atomic_read(const atomic_t *v)
++{
++	return (*(volatile const int *) &v->counter);
++}
++
++static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
++{
++	return (*(volatile const int *) &v->counter);
++}
+ 
+ /*
+  * atomic_set - set atomic variable
+@@ -38,7 +62,15 @@
+  *
+  * Atomically sets the value of @v to @i.
+  */
+-#define atomic_set(v, i)		((v)->counter = (i))
++static inline void atomic_set(atomic_t *v, int i)
++{
++	v->counter = i;
++}
++
++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
++{
++	v->counter = i;
++}
+ 
+ /*
+  * atomic_add - add integer to atomic variable
+@@ -47,7 +79,67 @@
+  *
+  * Atomically adds @i to @v.
+  */
+-static __inline__ void atomic_add(int i, atomic_t * v)
++static __inline__ void atomic_add(int i, atomic_t *v)
++{
++	int temp;
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%0, %1		# atomic_add		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"2:	add	%0, %2					\n"
++#else
++		"	addu	%0, %2					\n"
++#endif
++		"	sc	%0, %1					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%0, %1		# atomic_add		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Exception on overflow. */
++		"2:	add	%0, %2					\n"
++#else
++		"	addu	%0, %2					\n"
++#endif
++		"	sc	%0, %1					\n"
++		"	beqz	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	add	%0, %1					\n"
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#else
++		"	addu	%0, %1					\n"
++#endif
++		: "+r" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++}
++
++static __inline__ void atomic_add_unchecked(int i, atomic_unchecked_t *v)
+ {
+ 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+ 		int temp;
+@@ -90,7 +182,67 @@ static __inline__ void atomic_add(int i, atomic_t * v)
+  *
+  * Atomically subtracts @i from @v.
+  */
+-static __inline__ void atomic_sub(int i, atomic_t * v)
++static __inline__ void atomic_sub(int i, atomic_t *v)
++{
++	int temp;
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%0, %1		# atomic64_sub		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Exception on overflow. */
++		"2:	sub	%0, %2					\n"
++#else
++		"	subu	%0, %2					\n"
++#endif
++		"	sc	%0, %1					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%0, %1		# atomic64_sub		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Exception on overflow. */
++		"2:	sub	%0, %2					\n"
++#else
++		"	subu	%0, %2					\n"
++#endif
++		"	sc	%0, %1					\n"
++		"	beqz	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	sub	%0, %1					\n"
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#else
++		"	subu	%0, %1					\n"
++#endif
++		: "+r" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++}
++
++static __inline__ void atomic_sub_unchecked(long i, atomic_unchecked_t *v)
+ {
+ 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+ 		int temp;
+@@ -129,7 +281,93 @@ static __inline__ void atomic_sub(int i, atomic_t * v)
+ /*
+  * Same as above, but return the result value
+  */
+-static __inline__ int atomic_add_return(int i, atomic_t * v)
++static __inline__ int atomic_add_return(int i, atomic_t *v)
++{
++	int result;
++	int temp;
++
++	smp_mb__before_llsc();
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%1, %2		# atomic_add_return	\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	add	%0, %1, %3				\n"
++#else
++		"	addu	%0, %1, %3				\n"
++#endif
++		"	sc	%0, %2					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	b	4f					\n"
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	addu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%1, %2	# atomic_add_return		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	add	%0, %1, %3				\n"
++#else
++		"	addu	%0, %1, %3				\n"
++#endif
++		"	sc	%0, %2					\n"
++		"	bnez	%0, 4f					\n"
++		"	b	1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	addu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++		"	lw	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	add	%0, %2					\n"
++#else
++		"	addu	%0, %2					\n"
++#endif
++		"	sw	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Note: Dest reg is not modified on overflow */
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#endif
++		: "=&r" (result), "+m" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++
++	smp_llsc_mb();
++
++	return result;
++}
++
++static __inline__ int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
+ {
+ 	int result;
+ 
+@@ -178,7 +416,93 @@ static __inline__ int atomic_add_return(int i, atomic_t * v)
+ 	return result;
+ }
+ 
+-static __inline__ int atomic_sub_return(int i, atomic_t * v)
++static __inline__ int atomic_sub_return(int i, atomic_t *v)
++{
++	int result;
++	int temp;
++
++	smp_mb__before_llsc();
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%1, %2		# atomic_sub_return	\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	sub	%0, %1, %3				\n"
++#else
++		"	subu	%0, %1, %3				\n"
++#endif
++		"	sc	%0, %2					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	b	4f					\n"
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	subu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
++		: "Ir" (i), "m" (v->counter)
++		: "memory");
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	ll	%1, %2	# atomic_sub_return		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	sub	%0, %1, %3				\n"
++#else
++		"	subu	%0, %1, %3				\n"
++#endif
++		"	sc	%0, %2					\n"
++		"	bnez	%0, 4f					\n"
++		"	b	1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	subu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++		"	lw	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	sub	%0, %2					\n"
++#else
++		"	subu	%0, %2					\n"
++#endif
++		"	sw	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Note: Dest reg is not modified on overflow */
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#endif
++		: "=&r" (result), "+m" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++
++	smp_llsc_mb();
++
++	return result;
++}
++static __inline__ int atomic_sub_return_unchecked(int i, atomic_unchecked_t *v)
+ {
+ 	int result;
+ 
+@@ -238,7 +562,7 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v)
+  * Atomically test @v and subtract @i if @v is greater or equal than @i.
+  * The function returns the old value of @v minus @i.
+  */
+-static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
++static __inline__ int atomic_sub_if_positive(int i, atomic_t *v)
+ {
+ 	int result;
+ 
+@@ -295,8 +619,26 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
+ 	return result;
+ }
+ 
+-#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
+-#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
++static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
++{
++	return cmpxchg(&v->counter, old, new);
++}
++
++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old,
++					   int new)
++{
++	return cmpxchg(&(v->counter), old, new);
++}
++
++static inline int atomic_xchg(atomic_t *v, int new)
++{
++	return xchg(&v->counter, new);
++}
++
++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
++{
++	return xchg(&(v->counter), new);
++}
+ 
+ /**
+  * __atomic_add_unless - add unless the number is a given value
+@@ -324,6 +666,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+ 
+ #define atomic_dec_return(v) atomic_sub_return(1, (v))
+ #define atomic_inc_return(v) atomic_add_return(1, (v))
++static __inline__ int atomic_inc_return_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_add_return_unchecked(1, v);
++}
+ 
+ /*
+  * atomic_sub_and_test - subtract value from variable and test result
+@@ -345,6 +691,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+  * other cases.
+  */
+ #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
++static __inline__ int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_add_return_unchecked(1, v) == 0;
++}
+ 
+ /*
+  * atomic_dec_and_test - decrement by 1 and test
+@@ -369,6 +719,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+  * Atomically increments @v by 1.
+  */
+ #define atomic_inc(v) atomic_add(1, (v))
++static __inline__ void atomic_inc_unchecked(atomic_unchecked_t *v)
++{
++	atomic_add_unchecked(1, v);
++}
+ 
+ /*
+  * atomic_dec - decrement and test
+@@ -377,6 +731,10 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+  * Atomically decrements @v by 1.
+  */
+ #define atomic_dec(v) atomic_sub(1, (v))
++static __inline__ void atomic_dec_unchecked(atomic_unchecked_t *v)
++{
++	atomic_sub_unchecked(1, v);
++}
+ 
+ /*
+  * atomic_add_negative - add and test if negative
+@@ -398,14 +756,30 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+  * @v: pointer of type atomic64_t
+  *
+  */
+-#define atomic64_read(v)	(*(volatile long *)&(v)->counter)
++static inline long atomic64_read(const atomic64_t *v)
++{
++	return (*(volatile const long *) &v->counter);
++}
++
++static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
++{
++	return (*(volatile const long *) &v->counter);
++}
+ 
+ /*
+  * atomic64_set - set atomic variable
+  * @v: pointer of type atomic64_t
+  * @i: required value
+  */
+-#define atomic64_set(v, i)	((v)->counter = (i))
++static inline void atomic64_set(atomic64_t *v, long i)
++{
++	v->counter = i;
++}
++
++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
++{
++	v->counter = i;
++}
+ 
+ /*
+  * atomic64_add - add integer to atomic variable
+@@ -414,7 +788,66 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
+  *
+  * Atomically adds @i to @v.
+  */
+-static __inline__ void atomic64_add(long i, atomic64_t * v)
++static __inline__ void atomic64_add(long i, atomic64_t *v)
++{
++	long temp;
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%0, %1		# atomic64_add		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"2:	dadd	%0, %2					\n"
++#else
++		"	daddu	%0, %2					\n"
++#endif
++		"	scd	%0, %1					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%0, %1		# atomic64_add		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"2:	dadd	%0, %2					\n"
++#else
++		"	daddu	%0, %2					\n"
++#endif
++		"	scd	%0, %1					\n"
++		"	beqz	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	dadd	%0, %1					\n"
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#else
++		"	daddu	%0, %1					\n"
++#endif
++		: "+r" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++}
++static __inline__ void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
+ {
+ 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+ 		long temp;
+@@ -457,7 +890,67 @@ static __inline__ void atomic64_add(long i, atomic64_t * v)
+  *
+  * Atomically subtracts @i from @v.
+  */
+-static __inline__ void atomic64_sub(long i, atomic64_t * v)
++static __inline__ void atomic64_sub(long i, atomic64_t *v)
++{
++	long temp;
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%0, %1		# atomic64_sub		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Exception on overflow. */
++		"2:	dsub	%0, %2					\n"
++#else
++		"	dsubu	%0, %2					\n"
++#endif
++		"	scd	%0, %1					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%0, %1		# atomic64_sub		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Exception on overflow. */
++		"2:	dsub	%0, %2					\n"
++#else
++		"	dsubu	%0, %2					\n"
++#endif
++		"	scd	%0, %1					\n"
++		"	beqz	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"3:							\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	dsub	%0, %1					\n"
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#else
++		"	dsubu	%0, %1					\n"
++#endif
++		: "+r" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++}
++
++static __inline__ void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
+ {
+ 	if (kernel_uses_llsc && R10000_LLSC_WAR) {
+ 		long temp;
+@@ -496,7 +989,93 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v)
+ /*
+  * Same as above, but return the result value
+  */
+-static __inline__ long atomic64_add_return(long i, atomic64_t * v)
++static __inline__ long atomic64_add_return(long i, atomic64_t *v)
++{
++	long result;
++	long temp;
++
++	smp_mb__before_llsc();
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%1, %2		# atomic64_add_return	\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	dadd	%0, %1, %3				\n"
++#else
++		"	daddu	%0, %1, %3				\n"
++#endif
++		"	scd	%0, %2					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	b	4f					\n"
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	daddu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "+m" (v->counter)
++		: "Ir" (i));
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%1, %2	# atomic64_add_return		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	dadd	%0, %1, %3				\n"
++#else
++		"	daddu	%0, %1, %3				\n"
++#endif
++		"	scd	%0, %2					\n"
++		"	bnez	%0, 4f					\n"
++		"	b	1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	daddu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
++		: "Ir" (i), "m" (v->counter)
++		: "memory");
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++		"	ld	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	dadd	%0, %2					\n"
++#else
++		"	daddu	%0, %2					\n"
++#endif
++		"	sd	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Note: Dest reg is not modified on overflow */
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#endif
++		: "=&r" (result), "+m" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++
++	smp_llsc_mb();
++
++	return result;
++}
++static __inline__ long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
+ {
+ 	long result;
+ 
+@@ -546,7 +1125,97 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v)
+ 	return result;
+ }
+ 
+-static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
++static __inline__ long atomic64_sub_return(long i, atomic64_t *v)
++{
++	long result;
++	long temp;
++
++	smp_mb__before_llsc();
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		long temp;
++
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%1, %2		# atomic64_sub_return	\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	dsub	%0, %1, %3				\n"
++#else
++		"	dsubu	%0, %1, %3				\n"
++#endif
++		"	scd	%0, %2					\n"
++		"	beqzl	%0, 1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	b	4f					\n"
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	dsubu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
++		: "Ir" (i), "m" (v->counter)
++		: "memory");
++	} else if (kernel_uses_llsc) {
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:	lld	%1, %2	# atomic64_sub_return		\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"2:	dsub	%0, %1, %3				\n"
++#else
++		"	dsubu	%0, %1, %3				\n"
++#endif
++		"	scd	%0, %2					\n"
++		"	bnez	%0, 4f					\n"
++		"	b	1b					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"	.set	noreorder				\n"
++		"3:	b	5f					\n"
++		"	move	%0, %1					\n"
++		"	.set	reorder					\n"
++		_ASM_EXTABLE(2b, 3b)
++#endif
++		"4:	dsubu	%0, %1, %3				\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		"5:							\n"
++#endif
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "=m" (v->counter)
++		: "Ir" (i), "m" (v->counter)
++		: "memory");
++	} else {
++		unsigned long flags;
++
++		raw_local_irq_save(flags);
++		__asm__ __volatile__(
++		"	ld	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++			/* Exception on overflow. */
++		"1:	dsub	%0, %2					\n"
++#else
++		"	dsubu	%0, %2					\n"
++#endif
++		"	sd	%0, %1					\n"
++#ifdef CONFIG_PAX_REFCOUNT
++		/* Note: Dest reg is not modified on overflow */
++		"2:							\n"
++		_ASM_EXTABLE(1b, 2b)
++#endif
++		: "=&r" (result), "+m" (v->counter) : "Ir" (i));
++		raw_local_irq_restore(flags);
++	}
++
++	smp_llsc_mb();
++
++	return result;
++}
++
++static __inline__ long atomic64_sub_return_unchecked(long i, atomic64_unchecked_t *v)
+ {
+ 	long result;
+ 
+@@ -605,7 +1274,7 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
+  * Atomically test @v and subtract @i if @v is greater or equal than @i.
+  * The function returns the old value of @v minus @i.
+  */
+-static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
++static __inline__ long atomic64_sub_if_positive(long i, atomic64_t *v)
+ {
+ 	long result;
+ 
+@@ -662,9 +1331,26 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
+ 	return result;
+ }
+ 
+-#define atomic64_cmpxchg(v, o, n) \
+-	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
+-#define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))
++static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
++{
++	return cmpxchg(&v->counter, old, new);
++}
++
++static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old,
++					      long new)
++{
++	return cmpxchg(&(v->counter), old, new);
++}
++
++static inline long atomic64_xchg(atomic64_t *v, long new)
++{
++	return xchg(&v->counter, new);
++}
++
++static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
++{
++	return xchg(&(v->counter), new);
++}
+ 
+ /**
+  * atomic64_add_unless - add unless the number is a given value
+@@ -694,6 +1380,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
+ 
+ #define atomic64_dec_return(v) atomic64_sub_return(1, (v))
+ #define atomic64_inc_return(v) atomic64_add_return(1, (v))
++#define atomic64_inc_return_unchecked(v) atomic64_add_return_unchecked(1, (v))
+ 
+ /*
+  * atomic64_sub_and_test - subtract value from variable and test result
+@@ -715,6 +1402,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
+  * other cases.
+  */
+ #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
++#define atomic64_inc_and_test_unchecked(v) atomic64_add_return_unchecked(1, (v)) == 0)
+ 
+ /*
+  * atomic64_dec_and_test - decrement by 1 and test
+@@ -739,6 +1427,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
+  * Atomically increments @v by 1.
+  */
+ #define atomic64_inc(v) atomic64_add(1, (v))
++#define atomic64_inc_unchecked(v) atomic64_add_unchecked(1, (v))
+ 
+ /*
+  * atomic64_dec - decrement and test
+@@ -747,6 +1436,7 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
+  * Atomically decrements @v by 1.
+  */
+ #define atomic64_dec(v) atomic64_sub(1, (v))
++#define atomic64_dec_unchecked(v) atomic64_sub_unchecked(1, (v))
+ 
+ /*
+  * atomic64_add_negative - add and test if negative
+diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
+index e1aa4e4..670b68b 100644
+--- a/arch/mips/include/asm/barrier.h
++++ b/arch/mips/include/asm/barrier.h
+@@ -184,7 +184,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	smp_mb();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
+index b4db69f..8f3b093 100644
+--- a/arch/mips/include/asm/cache.h
++++ b/arch/mips/include/asm/cache.h
+@@ -9,10 +9,11 @@
+ #ifndef _ASM_CACHE_H
+ #define _ASM_CACHE_H
+ 
++#include <linux/const.h>
+ #include <kmalloc.h>
+ 
+ #define L1_CACHE_SHIFT		CONFIG_MIPS_L1_CACHE_SHIFT
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define SMP_CACHE_SHIFT		L1_CACHE_SHIFT
+ #define SMP_CACHE_BYTES		L1_CACHE_BYTES
+diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
+index d414405..6bb4ba2 100644
+--- a/arch/mips/include/asm/elf.h
++++ b/arch/mips/include/asm/elf.h
+@@ -398,13 +398,16 @@ extern const char *__elf_platform;
+ #define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+ #endif
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
++
++#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#endif
++
+ #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+ struct linux_binprm;
+ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+ 				       int uses_interp);
+ 
+-struct mm_struct;
+-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+-#define arch_randomize_brk arch_randomize_brk
+-
+ #endif /* _ASM_ELF_H */
+diff --git a/arch/mips/include/asm/exec.h b/arch/mips/include/asm/exec.h
+index c1f6afa..38cc6e9 100644
+--- a/arch/mips/include/asm/exec.h
++++ b/arch/mips/include/asm/exec.h
+@@ -12,6 +12,6 @@
+ #ifndef _ASM_EXEC_H
+ #define _ASM_EXEC_H
+ 
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) ((x) & ~0xfUL)
+ 
+ #endif /* _ASM_EXEC_H */
+diff --git a/arch/mips/include/asm/hw_irq.h b/arch/mips/include/asm/hw_irq.h
+index 9e8ef59..1139d6b 100644
+--- a/arch/mips/include/asm/hw_irq.h
++++ b/arch/mips/include/asm/hw_irq.h
+@@ -10,7 +10,7 @@
+ 
+ #include <linux/atomic.h>
+ 
+-extern atomic_t irq_err_count;
++extern atomic_unchecked_t irq_err_count;
+ 
+ /*
+  * interrupt-retrigger: NOP for now. This may not be appropriate for all
+diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
+index d44622c..64990d2 100644
+--- a/arch/mips/include/asm/local.h
++++ b/arch/mips/include/asm/local.h
+@@ -12,15 +12,25 @@ typedef struct
+ 	atomic_long_t a;
+ } local_t;
+ 
++typedef struct {
++	atomic_long_unchecked_t a;
++} local_unchecked_t;
++
+ #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
+ 
+ #define local_read(l)	atomic_long_read(&(l)->a)
++#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
+ #define local_set(l, i) atomic_long_set(&(l)->a, (i))
++#define local_set_unchecked(l, i)	atomic_long_set_unchecked(&(l)->a, (i))
+ 
+ #define local_add(i, l) atomic_long_add((i), (&(l)->a))
++#define local_add_unchecked(i, l) atomic_long_add_unchecked((i), (&(l)->a))
+ #define local_sub(i, l) atomic_long_sub((i), (&(l)->a))
++#define local_sub_unchecked(i, l) atomic_long_sub_unchecked((i), (&(l)->a))
+ #define local_inc(l)	atomic_long_inc(&(l)->a)
++#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
+ #define local_dec(l)	atomic_long_dec(&(l)->a)
++#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
+ 
+ /*
+  * Same as above, but return the result value
+@@ -70,6 +80,51 @@ static __inline__ long local_add_return(long i, local_t * l)
+ 	return result;
+ }
+ 
++static __inline__ long local_add_return_unchecked(long i, local_unchecked_t * l)
++{
++	unsigned long result;
++
++	if (kernel_uses_llsc && R10000_LLSC_WAR) {
++		unsigned long temp;
++
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:"	__LL	"%1, %2		# local_add_return	\n"
++		"	addu	%0, %1, %3				\n"
++			__SC	"%0, %2					\n"
++		"	beqzl	%0, 1b					\n"
++		"	addu	%0, %1, %3				\n"
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
++		: "Ir" (i), "m" (l->a.counter)
++		: "memory");
++	} else if (kernel_uses_llsc) {
++		unsigned long temp;
++
++		__asm__ __volatile__(
++		"	.set	mips3					\n"
++		"1:"	__LL	"%1, %2		# local_add_return	\n"
++		"	addu	%0, %1, %3				\n"
++			__SC	"%0, %2					\n"
++		"	beqz	%0, 1b					\n"
++		"	addu	%0, %1, %3				\n"
++		"	.set	mips0					\n"
++		: "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
++		: "Ir" (i), "m" (l->a.counter)
++		: "memory");
++	} else {
++		unsigned long flags;
++
++		local_irq_save(flags);
++		result = l->a.counter;
++		result += i;
++		l->a.counter = result;
++		local_irq_restore(flags);
++	}
++
++	return result;
++}
++
+ static __inline__ long local_sub_return(long i, local_t * l)
+ {
+ 	unsigned long result;
+@@ -117,6 +172,8 @@ static __inline__ long local_sub_return(long i, local_t * l)
+ 
+ #define local_cmpxchg(l, o, n) \
+ 	((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
++#define local_cmpxchg_unchecked(l, o, n) \
++	((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
+ #define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
+ 
+ /**
+diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
+index 5e08bcc..cfedefc 100644
+--- a/arch/mips/include/asm/page.h
++++ b/arch/mips/include/asm/page.h
+@@ -120,7 +120,7 @@ extern void copy_user_highpage(struct page *to, struct page *from,
+   #ifdef CONFIG_CPU_MIPS32
+     typedef struct { unsigned long pte_low, pte_high; } pte_t;
+     #define pte_val(x)	  ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
+-    #define __pte(x)	  ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
++    #define __pte(x)	  ({ pte_t __pte = {(x), (x) >> 32}; __pte; })
+   #else
+      typedef struct { unsigned long long pte; } pte_t;
+      #define pte_val(x) ((x).pte)
+diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
+index b336037..5b874cc 100644
+--- a/arch/mips/include/asm/pgalloc.h
++++ b/arch/mips/include/asm/pgalloc.h
+@@ -37,6 +37,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+ {
+ 	set_pud(pud, __pud((unsigned long)pmd));
+ }
++
++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
++{
++	pud_populate(mm, pud, pmd);
++}
+ #endif
+ 
+ /*
+diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
+index 008324d..f67c239 100644
+--- a/arch/mips/include/asm/pgtable.h
++++ b/arch/mips/include/asm/pgtable.h
+@@ -20,6 +20,9 @@
+ #include <asm/io.h>
+ #include <asm/pgtable-bits.h>
+ 
++#define ktla_ktva(addr)		(addr)
++#define ktva_ktla(addr)		(addr)
++
+ struct mm_struct;
+ struct vm_area_struct;
+ 
+diff --git a/arch/mips/include/asm/smtc_proc.h b/arch/mips/include/asm/smtc_proc.h
+index 25da651..ae2a259 100644
+--- a/arch/mips/include/asm/smtc_proc.h
++++ b/arch/mips/include/asm/smtc_proc.h
+@@ -18,6 +18,6 @@ extern struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS];
+ 
+ /* Count of number of recoveries of "stolen" FPU access rights on 34K */
+ 
+-extern atomic_t smtc_fpu_recoveries;
++extern atomic_unchecked_t smtc_fpu_recoveries;
+ 
+ #endif /* __ASM_SMTC_PROC_H */
+diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
+index e80ae50..b93dd2e 100644
+--- a/arch/mips/include/asm/thread_info.h
++++ b/arch/mips/include/asm/thread_info.h
+@@ -105,6 +105,8 @@ static inline struct thread_info *current_thread_info(void)
+ #define TIF_SECCOMP		4	/* secure computing */
+ #define TIF_NOTIFY_RESUME	5	/* callback before returning to user */
+ #define TIF_RESTORE_SIGMASK	9	/* restore signal mask in do_signal() */
++/* li takes a 32bit immediate */
++#define TIF_GRSEC_SETXID	10	/* update credentials on syscall entry/exit */
+ #define TIF_USEDFPU		16	/* FPU was used by this task this quantum (SMP) */
+ #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
+ #define TIF_NOHZ		19	/* in adaptive nohz mode */
+@@ -134,14 +136,15 @@ static inline struct thread_info *current_thread_info(void)
+ #define _TIF_LOAD_WATCH		(1<<TIF_LOAD_WATCH)
+ #define _TIF_32BIT_FPREGS	(1<<TIF_32BIT_FPREGS)
+ #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
++#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
+ 
+ #define _TIF_WORK_SYSCALL_ENTRY	(_TIF_NOHZ | _TIF_SYSCALL_TRACE |	\
+ 				 _TIF_SYSCALL_AUDIT | \
+-				 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP)
++				 _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | _TIF_GRSEC_SETXID)
+ 
+ /* work to do in syscall_trace_leave() */
+ #define _TIF_WORK_SYSCALL_EXIT	(_TIF_NOHZ | _TIF_SYSCALL_TRACE |	\
+-				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
++				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
+ 
+ /* work to do on interrupt/exception return */
+ #define _TIF_WORK_MASK		\
+@@ -149,7 +152,7 @@ static inline struct thread_info *current_thread_info(void)
+ /* work to do on any return to u-space */
+ #define _TIF_ALLWORK_MASK	(_TIF_NOHZ | _TIF_WORK_MASK |		\
+ 				 _TIF_WORK_SYSCALL_EXIT |		\
+-				 _TIF_SYSCALL_TRACEPOINT)
++				 _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
+ 
+ /*
+  * We stash processor id into a COP0 register to retrieve it fast
+diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
+index f3fa375..3af6637 100644
+--- a/arch/mips/include/asm/uaccess.h
++++ b/arch/mips/include/asm/uaccess.h
+@@ -128,6 +128,7 @@ extern u64 __ua_limit;
+ 	__ok == 0;							\
+ })
+ 
++#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
+ #define access_ok(type, addr, size)					\
+ 	likely(__access_ok((addr), (size), __access_mask))
+ 
+diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
+index 1188e00..41cf144 100644
+--- a/arch/mips/kernel/binfmt_elfn32.c
++++ b/arch/mips/kernel/binfmt_elfn32.c
+@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+ #undef ELF_ET_DYN_BASE
+ #define ELF_ET_DYN_BASE		(TASK32_SIZE / 3 * 2)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
++
++#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#endif
++
+ #include <asm/processor.h>
+ #include <linux/module.h>
+ #include <linux/elfcore.h>
+diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
+index 71df942..199dd19 100644
+--- a/arch/mips/kernel/binfmt_elfo32.c
++++ b/arch/mips/kernel/binfmt_elfo32.c
+@@ -70,6 +70,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+ #undef ELF_ET_DYN_BASE
+ #define ELF_ET_DYN_BASE		(TASK32_SIZE / 3 * 2)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL)
++
++#define PAX_DELTA_MMAP_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#define PAX_DELTA_STACK_LEN	(TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT)
++#endif
++
+ #include <asm/processor.h>
+ 
+ /* These MUST be defined before elf.h gets included */
+diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
+index 2b91fe8..fe4f6b4 100644
+--- a/arch/mips/kernel/i8259.c
++++ b/arch/mips/kernel/i8259.c
+@@ -205,7 +205,7 @@ spurious_8259A_irq:
+ 			printk(KERN_DEBUG "spurious 8259A interrupt: IRQ%d.\n", irq);
+ 			spurious_irq_mask |= irqmask;
+ 		}
+-		atomic_inc(&irq_err_count);
++		atomic_inc_unchecked(&irq_err_count);
+ 		/*
+ 		 * Theoretically we do not have to handle this IRQ,
+ 		 * but in Linux this does not cause problems and is
+diff --git a/arch/mips/kernel/irq-gt641xx.c b/arch/mips/kernel/irq-gt641xx.c
+index 44a1f79..2bd6aa3 100644
+--- a/arch/mips/kernel/irq-gt641xx.c
++++ b/arch/mips/kernel/irq-gt641xx.c
+@@ -110,7 +110,7 @@ void gt641xx_irq_dispatch(void)
+ 		}
+ 	}
+ 
+-	atomic_inc(&irq_err_count);
++	atomic_inc_unchecked(&irq_err_count);
+ }
+ 
+ void __init gt641xx_irq_init(void)
+diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
+index 7479d8d..5c37e62 100644
+--- a/arch/mips/kernel/irq.c
++++ b/arch/mips/kernel/irq.c
+@@ -77,17 +77,17 @@ void ack_bad_irq(unsigned int irq)
+ 	printk("unexpected IRQ # %d\n", irq);
+ }
+ 
+-atomic_t irq_err_count;
++atomic_unchecked_t irq_err_count;
+ 
+ int arch_show_interrupts(struct seq_file *p, int prec)
+ {
+-	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
++	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
+ 	return 0;
+ }
+ 
+ asmlinkage void spurious_interrupt(void)
+ {
+-	atomic_inc(&irq_err_count);
++	atomic_inc_unchecked(&irq_err_count);
+ }
+ 
+ void __init init_IRQ(void)
+@@ -111,6 +111,8 @@ void __init init_IRQ(void)
+ }
+ 
+ #ifdef CONFIG_DEBUG_STACKOVERFLOW
++
++extern void gr_handle_kernel_exploit(void);
+ static inline void check_stack_overflow(void)
+ {
+ 	unsigned long sp;
+@@ -126,6 +128,7 @@ static inline void check_stack_overflow(void)
+ 		printk("do_IRQ: stack overflow: %ld\n",
+ 		       sp - sizeof(struct thread_info));
+ 		dump_stack();
++		gr_handle_kernel_exploit();
+ 	}
+ }
+ #else
+diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
+index 6ae540e..b7396dc 100644
+--- a/arch/mips/kernel/process.c
++++ b/arch/mips/kernel/process.c
+@@ -562,15 +562,3 @@ unsigned long get_wchan(struct task_struct *task)
+ out:
+ 	return pc;
+ }
+-
+-/*
+- * Don't forget that the stack pointer must be aligned on a 8 bytes
+- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI.
+- */
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+-		sp -= get_random_int() & ~PAGE_MASK;
+-
+-	return sp & ALMASK;
+-}
+diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
+index 60f48fe..a2df508 100644
+--- a/arch/mips/kernel/ptrace.c
++++ b/arch/mips/kernel/ptrace.c
+@@ -790,6 +790,10 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ /*
+  * Notification of system call entry/exit
+  * - triggered by current->work.syscall_trace
+@@ -806,6 +810,11 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
+ 	    tracehook_report_syscall_entry(regs))
+ 		ret = -1;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+ 		trace_sys_enter(regs, regs->regs[2]);
+ 
+diff --git a/arch/mips/kernel/reset.c b/arch/mips/kernel/reset.c
+index 07fc524..b9d7f28 100644
+--- a/arch/mips/kernel/reset.c
++++ b/arch/mips/kernel/reset.c
+@@ -13,6 +13,7 @@
+ #include <linux/reboot.h>
+ 
+ #include <asm/reboot.h>
++#include <asm/bug.h>
+ 
+ /*
+  * Urgs ...  Too many MIPS machines to handle this in a generic way.
+@@ -29,16 +30,19 @@ void machine_restart(char *command)
+ {
+ 	if (_machine_restart)
+ 		_machine_restart(command);
++	BUG();
+ }
+ 
+ void machine_halt(void)
+ {
+ 	if (_machine_halt)
+ 		_machine_halt();
++	BUG();
+ }
+ 
+ void machine_power_off(void)
+ {
+ 	if (pm_power_off)
+ 		pm_power_off();
++	BUG();
+ }
+diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c
+index c10aa84..9ec2e60 100644
+--- a/arch/mips/kernel/smtc-proc.c
++++ b/arch/mips/kernel/smtc-proc.c
+@@ -31,7 +31,7 @@ unsigned long selfipis[NR_CPUS];
+ 
+ struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS];
+ 
+-atomic_t smtc_fpu_recoveries;
++atomic_unchecked_t smtc_fpu_recoveries;
+ 
+ static int smtc_proc_show(struct seq_file *m, void *v)
+ {
+@@ -48,7 +48,7 @@ static int smtc_proc_show(struct seq_file *m, void *v)
+ 	for(i = 0; i < NR_CPUS; i++)
+ 		seq_printf(m, "%d: %ld\n", i, smtc_cpu_stats[i].selfipis);
+ 	seq_printf(m, "%d Recoveries of \"stolen\" FPU\n",
+-		   atomic_read(&smtc_fpu_recoveries));
++		   atomic_read_unchecked(&smtc_fpu_recoveries));
+ 	return 0;
+ }
+ 
+@@ -73,7 +73,7 @@ void init_smtc_stats(void)
+ 		smtc_cpu_stats[i].selfipis = 0;
+ 	}
+ 
+-	atomic_set(&smtc_fpu_recoveries, 0);
++	atomic_set_unchecked(&smtc_fpu_recoveries, 0);
+ 
+ 	proc_create("smtc", 0444, NULL, &smtc_proc_fops);
+ }
+diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
+index dfc1b91..11a2c07 100644
+--- a/arch/mips/kernel/smtc.c
++++ b/arch/mips/kernel/smtc.c
+@@ -1359,7 +1359,7 @@ void smtc_soft_dump(void)
+ 	}
+ 	smtc_ipi_qdump();
+ 	printk("%d Recoveries of \"stolen\" FPU\n",
+-	       atomic_read(&smtc_fpu_recoveries));
++	       atomic_read_unchecked(&smtc_fpu_recoveries));
+ }
+ 
+ 
+diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
+index c24ad5f..9983ab2 100644
+--- a/arch/mips/kernel/sync-r4k.c
++++ b/arch/mips/kernel/sync-r4k.c
+@@ -20,8 +20,8 @@
+ #include <asm/mipsregs.h>
+ 
+ static atomic_t count_start_flag = ATOMIC_INIT(0);
+-static atomic_t count_count_start = ATOMIC_INIT(0);
+-static atomic_t count_count_stop = ATOMIC_INIT(0);
++static atomic_unchecked_t count_count_start = ATOMIC_INIT(0);
++static atomic_unchecked_t count_count_stop = ATOMIC_INIT(0);
+ static atomic_t count_reference = ATOMIC_INIT(0);
+ 
+ #define COUNTON 100
+@@ -68,13 +68,13 @@ void synchronise_count_master(int cpu)
+ 
+ 	for (i = 0; i < NR_LOOPS; i++) {
+ 		/* slaves loop on '!= 2' */
+-		while (atomic_read(&count_count_start) != 1)
++		while (atomic_read_unchecked(&count_count_start) != 1)
+ 			mb();
+-		atomic_set(&count_count_stop, 0);
++		atomic_set_unchecked(&count_count_stop, 0);
+ 		smp_wmb();
+ 
+ 		/* this lets the slaves write their count register */
+-		atomic_inc(&count_count_start);
++		atomic_inc_unchecked(&count_count_start);
+ 
+ 		/*
+ 		 * Everyone initialises count in the last loop:
+@@ -85,11 +85,11 @@ void synchronise_count_master(int cpu)
+ 		/*
+ 		 * Wait for all slaves to leave the synchronization point:
+ 		 */
+-		while (atomic_read(&count_count_stop) != 1)
++		while (atomic_read_unchecked(&count_count_stop) != 1)
+ 			mb();
+-		atomic_set(&count_count_start, 0);
++		atomic_set_unchecked(&count_count_start, 0);
+ 		smp_wmb();
+-		atomic_inc(&count_count_stop);
++		atomic_inc_unchecked(&count_count_stop);
+ 	}
+ 	/* Arrange for an interrupt in a short while */
+ 	write_c0_compare(read_c0_count() + COUNTON);
+@@ -130,8 +130,8 @@ void synchronise_count_slave(int cpu)
+ 	initcount = atomic_read(&count_reference);
+ 
+ 	for (i = 0; i < NR_LOOPS; i++) {
+-		atomic_inc(&count_count_start);
+-		while (atomic_read(&count_count_start) != 2)
++		atomic_inc_unchecked(&count_count_start);
++		while (atomic_read_unchecked(&count_count_start) != 2)
+ 			mb();
+ 
+ 		/*
+@@ -140,8 +140,8 @@ void synchronise_count_slave(int cpu)
+ 		if (i == NR_LOOPS-1)
+ 			write_c0_count(initcount);
+ 
+-		atomic_inc(&count_count_stop);
+-		while (atomic_read(&count_count_stop) != 2)
++		atomic_inc_unchecked(&count_count_stop);
++		while (atomic_read_unchecked(&count_count_stop) != 2)
+ 			mb();
+ 	}
+ 	/* Arrange for an interrupt in a short while */
+diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
+index 81e6ae0..6ab6e79 100644
+--- a/arch/mips/kernel/traps.c
++++ b/arch/mips/kernel/traps.c
+@@ -691,7 +691,18 @@ asmlinkage void do_ov(struct pt_regs *regs)
+ 	siginfo_t info;
+ 
+ 	prev_state = exception_enter();
+-	die_if_kernel("Integer overflow", regs);
++	if (unlikely(!user_mode(regs))) {
++
++#ifdef CONFIG_PAX_REFCOUNT
++		if (fixup_exception(regs)) {
++			pax_report_refcount_overflow(regs);
++			exception_exit(prev_state);
++			return;
++		}
++#endif
++
++		die("Integer overflow", regs);
++	}
+ 
+ 	info.si_code = FPE_INTOVF;
+ 	info.si_signo = SIGFPE;
+diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
+index 897c605..c421760 100644
+--- a/arch/mips/kvm/kvm_mips.c
++++ b/arch/mips/kvm/kvm_mips.c
+@@ -835,7 +835,7 @@ long kvm_arch_vm_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg)
+ 	return r;
+ }
+ 
+-int kvm_arch_init(void *opaque)
++int kvm_arch_init(const void *opaque)
+ {
+ 	int ret;
+ 
+diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
+index 70ab5d6..62940fe 100644
+--- a/arch/mips/mm/fault.c
++++ b/arch/mips/mm/fault.c
+@@ -28,6 +28,23 @@
+ #include <asm/highmem.h>		/* For VMALLOC_END */
+ #include <linux/kdebug.h>
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 5; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ /*
+  * This routine handles page faults.  It determines the address,
+  * and the problem, and then passes it off to one of the appropriate
+@@ -201,6 +218,14 @@ bad_area:
+ bad_area_nosemaphore:
+ 	/* User mode accesses just cause a SIGSEGV */
+ 	if (user_mode(regs)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if (cpu_has_rixi && (mm->pax_flags & MF_PAX_PAGEEXEC) && !write && address == instruction_pointer(regs)) {
++			pax_report_fault(regs, (void *)address, (void *)user_stack_pointer(regs));
++			do_group_exit(SIGKILL);
++		}
++#endif
++
+ 		tsk->thread.cp0_badvaddr = address;
+ 		tsk->thread.error_code = write;
+ #if 0
+diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
+index f1baadd..5472dca 100644
+--- a/arch/mips/mm/mmap.c
++++ b/arch/mips/mm/mmap.c
+@@ -59,6 +59,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
+ 	struct vm_area_struct *vma;
+ 	unsigned long addr = addr0;
+ 	int do_color_align;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	if (unlikely(len > TASK_SIZE))
+@@ -84,6 +85,11 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
+ 		do_color_align = 1;
+ 
+ 	/* requesting a specific address */
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(current->mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		if (do_color_align)
+ 			addr = COLOUR_ALIGN(addr, pgoff);
+@@ -91,14 +97,14 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
+ 			addr = PAGE_ALIGN(addr);
+ 
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+ 	info.length = len;
+ 	info.align_mask = do_color_align ? (PAGE_MASK & shm_align_mask) : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 
+ 	if (dir == DOWN) {
+ 		info.flags = VM_UNMAPPED_AREA_TOPDOWN;
+@@ -146,6 +152,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+ 	unsigned long random_factor = 0UL;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (current->flags & PF_RANDOMIZE) {
+ 		random_factor = get_random_int();
+ 		random_factor = random_factor << PAGE_SHIFT;
+@@ -157,40 +167,25 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area;
+ 	} else {
+ 		mm->mmap_base = mmap_base(random_factor);
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ 	}
+ }
+ 
+-static inline unsigned long brk_rnd(void)
+-{
+-	unsigned long rnd = get_random_int();
+-
+-	rnd = rnd << PAGE_SHIFT;
+-	/* 8MB for 32bit, 256MB for 64bit */
+-	if (TASK_IS_32BIT_ADDR)
+-		rnd = rnd & 0x7ffffful;
+-	else
+-		rnd = rnd & 0xffffffful;
+-
+-	return rnd;
+-}
+-
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+-	unsigned long base = mm->brk;
+-	unsigned long ret;
+-
+-	ret = PAGE_ALIGN(base + brk_rnd());
+-
+-	if (ret < mm->brk)
+-		return mm->brk;
+-
+-	return ret;
+-}
+-
+ int __virt_addr_valid(const volatile void *kaddr)
+ {
+ 	return pfn_valid(PFN_DOWN(virt_to_phys(kaddr)));
+diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
+index 59cccd9..f39ac2f 100644
+--- a/arch/mips/pci/pci-octeon.c
++++ b/arch/mips/pci/pci-octeon.c
+@@ -327,8 +327,8 @@ static int octeon_write_config(struct pci_bus *bus, unsigned int devfn,
+ 
+ 
+ static struct pci_ops octeon_pci_ops = {
+-	octeon_read_config,
+-	octeon_write_config,
++	.read = octeon_read_config,
++	.write = octeon_write_config,
+ };
+ 
+ static struct resource octeon_pci_mem_resource = {
+diff --git a/arch/mips/pci/pcie-octeon.c b/arch/mips/pci/pcie-octeon.c
+index 5e36c33..eb4a17b 100644
+--- a/arch/mips/pci/pcie-octeon.c
++++ b/arch/mips/pci/pcie-octeon.c
+@@ -1792,8 +1792,8 @@ static int octeon_dummy_write_config(struct pci_bus *bus, unsigned int devfn,
+ }
+ 
+ static struct pci_ops octeon_pcie0_ops = {
+-	octeon_pcie0_read_config,
+-	octeon_pcie0_write_config,
++	.read = octeon_pcie0_read_config,
++	.write = octeon_pcie0_write_config,
+ };
+ 
+ static struct resource octeon_pcie0_mem_resource = {
+@@ -1813,8 +1813,8 @@ static struct pci_controller octeon_pcie0_controller = {
+ };
+ 
+ static struct pci_ops octeon_pcie1_ops = {
+-	octeon_pcie1_read_config,
+-	octeon_pcie1_write_config,
++	.read = octeon_pcie1_read_config,
++	.write = octeon_pcie1_write_config,
+ };
+ 
+ static struct resource octeon_pcie1_mem_resource = {
+@@ -1834,8 +1834,8 @@ static struct pci_controller octeon_pcie1_controller = {
+ };
+ 
+ static struct pci_ops octeon_dummy_ops = {
+-	octeon_dummy_read_config,
+-	octeon_dummy_write_config,
++	.read = octeon_dummy_read_config,
++	.write = octeon_dummy_write_config,
+ };
+ 
+ static struct resource octeon_dummy_mem_resource = {
+diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
+index a2358b4..7cead4f 100644
+--- a/arch/mips/sgi-ip27/ip27-nmi.c
++++ b/arch/mips/sgi-ip27/ip27-nmi.c
+@@ -187,9 +187,9 @@ void
+ cont_nmi_dump(void)
+ {
+ #ifndef REAL_NMI_SIGNAL
+-	static atomic_t nmied_cpus = ATOMIC_INIT(0);
++	static atomic_unchecked_t nmied_cpus = ATOMIC_INIT(0);
+ 
+-	atomic_inc(&nmied_cpus);
++	atomic_inc_unchecked(&nmied_cpus);
+ #endif
+ 	/*
+ 	 * Only allow 1 cpu to proceed
+@@ -233,7 +233,7 @@ cont_nmi_dump(void)
+ 		udelay(10000);
+ 	}
+ #else
+-	while (atomic_read(&nmied_cpus) != num_online_cpus());
++	while (atomic_read_unchecked(&nmied_cpus) != num_online_cpus());
+ #endif
+ 
+ 	/*
+diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
+index a046b30..6799527 100644
+--- a/arch/mips/sni/rm200.c
++++ b/arch/mips/sni/rm200.c
+@@ -270,7 +270,7 @@ spurious_8259A_irq:
+ 			       "spurious RM200 8259A interrupt: IRQ%d.\n", irq);
+ 			spurious_irq_mask |= irqmask;
+ 		}
+-		atomic_inc(&irq_err_count);
++		atomic_inc_unchecked(&irq_err_count);
+ 		/*
+ 		 * Theoretically we do not have to handle this IRQ,
+ 		 * but in Linux this does not cause problems and is
+diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
+index 41e873b..34d33a7 100644
+--- a/arch/mips/vr41xx/common/icu.c
++++ b/arch/mips/vr41xx/common/icu.c
+@@ -653,7 +653,7 @@ static int icu_get_irq(unsigned int irq)
+ 
+ 	printk(KERN_ERR "spurious ICU interrupt: %04x,%04x\n", pend1, pend2);
+ 
+-	atomic_inc(&irq_err_count);
++	atomic_inc_unchecked(&irq_err_count);
+ 
+ 	return -1;
+ }
+diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
+index ae0e4ee..e8f0692 100644
+--- a/arch/mips/vr41xx/common/irq.c
++++ b/arch/mips/vr41xx/common/irq.c
+@@ -64,7 +64,7 @@ static void irq_dispatch(unsigned int irq)
+ 	irq_cascade_t *cascade;
+ 
+ 	if (irq >= NR_IRQS) {
+-		atomic_inc(&irq_err_count);
++		atomic_inc_unchecked(&irq_err_count);
+ 		return;
+ 	}
+ 
+@@ -84,7 +84,7 @@ static void irq_dispatch(unsigned int irq)
+ 		ret = cascade->get_irq(irq);
+ 		irq = ret;
+ 		if (ret < 0)
+-			atomic_inc(&irq_err_count);
++			atomic_inc_unchecked(&irq_err_count);
+ 		else
+ 			irq_dispatch(irq);
+ 		if (!irqd_irq_disabled(idata) && chip->irq_unmask)
+diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h
+index 967d144..db12197 100644
+--- a/arch/mn10300/proc-mn103e010/include/proc/cache.h
++++ b/arch/mn10300/proc-mn103e010/include/proc/cache.h
+@@ -11,12 +11,14 @@
+ #ifndef _ASM_PROC_CACHE_H
+ #define _ASM_PROC_CACHE_H
+ 
++#include <linux/const.h>
++
+ /* L1 cache */
+ 
+ #define L1_CACHE_NWAYS		4	/* number of ways in caches */
+ #define L1_CACHE_NENTRIES	256	/* number of entries in each way */
+-#define L1_CACHE_BYTES		16	/* bytes per entry */
+ #define L1_CACHE_SHIFT		4	/* shift for bytes per entry */
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)	/* bytes per entry */
+ #define L1_CACHE_WAYDISP	0x1000	/* displacement of one way from the next */
+ 
+ #define L1_CACHE_TAG_VALID	0x00000001	/* cache tag valid bit */
+diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
+index bcb5df2..84fabd2 100644
+--- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
++++ b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h
+@@ -16,13 +16,15 @@
+ #ifndef _ASM_PROC_CACHE_H
+ #define _ASM_PROC_CACHE_H
+ 
++#include <linux/const.h>
++
+ /*
+  * L1 cache
+  */
+ #define L1_CACHE_NWAYS		4		/* number of ways in caches */
+ #define L1_CACHE_NENTRIES	128		/* number of entries in each way */
+-#define L1_CACHE_BYTES		32		/* bytes per entry */
+ #define L1_CACHE_SHIFT		5		/* shift for bytes per entry */
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)	/* bytes per entry */
+ #define L1_CACHE_WAYDISP	0x1000		/* distance from one way to the next */
+ 
+ #define L1_CACHE_TAG_VALID	0x00000001	/* cache tag valid bit */
+diff --git a/arch/openrisc/include/asm/cache.h b/arch/openrisc/include/asm/cache.h
+index 4ce7a01..449202a 100644
+--- a/arch/openrisc/include/asm/cache.h
++++ b/arch/openrisc/include/asm/cache.h
+@@ -19,11 +19,13 @@
+ #ifndef __ASM_OPENRISC_CACHE_H
+ #define __ASM_OPENRISC_CACHE_H
+ 
++#include <linux/const.h>
++
+ /* FIXME: How can we replace these with values from the CPU...
+  * they shouldn't be hard-coded!
+  */
+ 
+-#define L1_CACHE_BYTES 16
+ #define L1_CACHE_SHIFT 4
++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #endif /* __ASM_OPENRISC_CACHE_H */
+diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
+index 472886c..00e7df9 100644
+--- a/arch/parisc/include/asm/atomic.h
++++ b/arch/parisc/include/asm/atomic.h
+@@ -252,6 +252,16 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
+ 	return dec;
+ }
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ #endif /* !CONFIG_64BIT */
+ 
+ 
+diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
+index 47f11c7..3420df2 100644
+--- a/arch/parisc/include/asm/cache.h
++++ b/arch/parisc/include/asm/cache.h
+@@ -5,6 +5,7 @@
+ #ifndef __ARCH_PARISC_CACHE_H
+ #define __ARCH_PARISC_CACHE_H
+ 
++#include <linux/const.h>
+ 
+ /*
+  * PA 2.0 processors have 64-byte cachelines; PA 1.1 processors have
+@@ -15,13 +16,13 @@
+  * just ruin performance.
+  */
+ #ifdef CONFIG_PA20
+-#define L1_CACHE_BYTES 64
+ #define L1_CACHE_SHIFT 6
+ #else
+-#define L1_CACHE_BYTES 32
+ #define L1_CACHE_SHIFT 5
+ #endif
+ 
++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
++
+ #ifndef __ASSEMBLY__
+ 
+ #define SMP_CACHE_BYTES L1_CACHE_BYTES
+diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
+index 3391d06..c23a2cc 100644
+--- a/arch/parisc/include/asm/elf.h
++++ b/arch/parisc/include/asm/elf.h
+@@ -342,6 +342,13 @@ struct pt_regs;	/* forward declaration... */
+ 
+ #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE + 0x01000000)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	0x10000UL
++
++#define PAX_DELTA_MMAP_LEN	16
++#define PAX_DELTA_STACK_LEN	16
++#endif
++
+ /* This yields a mask that user programs can use to figure out what
+    instruction set this CPU supports.  This could be done in user space,
+    but it's not easy, and we've already done it here.  */
+diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
+index f213f5b..0af3e8e 100644
+--- a/arch/parisc/include/asm/pgalloc.h
++++ b/arch/parisc/include/asm/pgalloc.h
+@@ -61,6 +61,11 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+ 		        (__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT));
+ }
+ 
++static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
++{
++	pgd_populate(mm, pgd, pmd);
++}
++
+ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
+ {
+ 	pmd_t *pmd = (pmd_t *)__get_free_pages(GFP_KERNEL|__GFP_REPEAT,
+@@ -93,6 +98,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+ #define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
+ #define pmd_free(mm, x)			do { } while (0)
+ #define pgd_populate(mm, pmd, pte)	BUG()
++#define pgd_populate_kernel(mm, pmd, pte)	BUG()
+ 
+ #endif
+ 
+diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
+index 22b89d1..ce34230 100644
+--- a/arch/parisc/include/asm/pgtable.h
++++ b/arch/parisc/include/asm/pgtable.h
+@@ -223,6 +223,17 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+ #define PAGE_EXECREAD   __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED)
+ #define PAGE_COPY       PAGE_EXECREAD
+ #define PAGE_RWX        __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++# define PAGE_SHARED_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED)
++# define PAGE_COPY_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
++# define PAGE_READONLY_NOEXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED)
++#else
++# define PAGE_SHARED_NOEXEC	PAGE_SHARED
++# define PAGE_COPY_NOEXEC	PAGE_COPY
++# define PAGE_READONLY_NOEXEC	PAGE_READONLY
++#endif
++
+ #define PAGE_KERNEL	__pgprot(_PAGE_KERNEL)
+ #define PAGE_KERNEL_EXEC	__pgprot(_PAGE_KERNEL_EXEC)
+ #define PAGE_KERNEL_RWX	__pgprot(_PAGE_KERNEL_RWX)
+diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
+index 4006964..fcb3cc2 100644
+--- a/arch/parisc/include/asm/uaccess.h
++++ b/arch/parisc/include/asm/uaccess.h
+@@ -246,10 +246,10 @@ static inline unsigned long __must_check copy_from_user(void *to,
+                                           const void __user *from,
+                                           unsigned long n)
+ {
+-        int sz = __compiletime_object_size(to);
++        size_t sz = __compiletime_object_size(to);
+         int ret = -EFAULT;
+ 
+-        if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
++        if (likely(sz == (size_t)-1 || !__builtin_constant_p(n) || sz >= n))
+                 ret = __copy_from_user(to, from, n);
+         else
+                 copy_from_user_overflow();
+diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
+index 50dfafc..b9fc230 100644
+--- a/arch/parisc/kernel/module.c
++++ b/arch/parisc/kernel/module.c
+@@ -98,16 +98,38 @@
+ 
+ /* three functions to determine where in the module core
+  * or init pieces the location is */
++static inline int in_init_rx(struct module *me, void *loc)
++{
++	return (loc >= me->module_init_rx &&
++		loc < (me->module_init_rx + me->init_size_rx));
++}
++
++static inline int in_init_rw(struct module *me, void *loc)
++{
++	return (loc >= me->module_init_rw &&
++		loc < (me->module_init_rw + me->init_size_rw));
++}
++
+ static inline int in_init(struct module *me, void *loc)
+ {
+-	return (loc >= me->module_init &&
+-		loc <= (me->module_init + me->init_size));
++	return in_init_rx(me, loc) || in_init_rw(me, loc);
++}
++
++static inline int in_core_rx(struct module *me, void *loc)
++{
++	return (loc >= me->module_core_rx &&
++		loc < (me->module_core_rx + me->core_size_rx));
++}
++
++static inline int in_core_rw(struct module *me, void *loc)
++{
++	return (loc >= me->module_core_rw &&
++		loc < (me->module_core_rw + me->core_size_rw));
+ }
+ 
+ static inline int in_core(struct module *me, void *loc)
+ {
+-	return (loc >= me->module_core &&
+-		loc <= (me->module_core + me->core_size));
++	return in_core_rx(me, loc) || in_core_rw(me, loc);
+ }
+ 
+ static inline int in_local(struct module *me, void *loc)
+@@ -371,13 +393,13 @@ int module_frob_arch_sections(CONST Elf_Ehdr *hdr,
+ 	}
+ 
+ 	/* align things a bit */
+-	me->core_size = ALIGN(me->core_size, 16);
+-	me->arch.got_offset = me->core_size;
+-	me->core_size += gots * sizeof(struct got_entry);
++	me->core_size_rw = ALIGN(me->core_size_rw, 16);
++	me->arch.got_offset = me->core_size_rw;
++	me->core_size_rw += gots * sizeof(struct got_entry);
+ 
+-	me->core_size = ALIGN(me->core_size, 16);
+-	me->arch.fdesc_offset = me->core_size;
+-	me->core_size += fdescs * sizeof(Elf_Fdesc);
++	me->core_size_rw = ALIGN(me->core_size_rw, 16);
++	me->arch.fdesc_offset = me->core_size_rw;
++	me->core_size_rw += fdescs * sizeof(Elf_Fdesc);
+ 
+ 	me->arch.got_max = gots;
+ 	me->arch.fdesc_max = fdescs;
+@@ -395,7 +417,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
+ 
+ 	BUG_ON(value == 0);
+ 
+-	got = me->module_core + me->arch.got_offset;
++	got = me->module_core_rw + me->arch.got_offset;
+ 	for (i = 0; got[i].addr; i++)
+ 		if (got[i].addr == value)
+ 			goto out;
+@@ -413,7 +435,7 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
+ #ifdef CONFIG_64BIT
+ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
+ {
+-	Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset;
++	Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset;
+ 
+ 	if (!value) {
+ 		printk(KERN_ERR "%s: zero OPD requested!\n", me->name);
+@@ -431,7 +453,7 @@ static Elf_Addr get_fdesc(struct module *me, unsigned long value)
+ 
+ 	/* Create new one */
+ 	fdesc->addr = value;
+-	fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset;
++	fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
+ 	return (Elf_Addr)fdesc;
+ }
+ #endif /* CONFIG_64BIT */
+@@ -843,7 +865,7 @@ register_unwind_table(struct module *me,
+ 
+ 	table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr;
+ 	end = table + sechdrs[me->arch.unwind_section].sh_size;
+-	gp = (Elf_Addr)me->module_core + me->arch.got_offset;
++	gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset;
+ 
+ 	DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n",
+ 	       me->arch.unwind_section, table, end, gp);
+diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
+index e1ffea2..46ed66e 100644
+--- a/arch/parisc/kernel/sys_parisc.c
++++ b/arch/parisc/kernel/sys_parisc.c
+@@ -89,6 +89,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	unsigned long task_size = TASK_SIZE;
+ 	int do_color_align, last_mmap;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
+ 
+ 	if (len > task_size)
+ 		return -ENOMEM;
+@@ -106,6 +107,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 		goto found_addr;
+ 	}
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		if (do_color_align && last_mmap)
+ 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
+@@ -124,6 +129,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	info.high_limit = mmap_upper_limit();
+ 	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
+ 	info.align_offset = shared_align_offset(last_mmap, pgoff);
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ found_addr:
+@@ -143,6 +149,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	unsigned long addr = addr0;
+ 	int do_color_align, last_mmap;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(current->mm, filp, flags);
+ 
+ #ifdef CONFIG_64BIT
+ 	/* This should only ever run for 32-bit processes.  */
+@@ -167,6 +174,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	}
+ 
+ 	/* requesting a specific address */
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		if (do_color_align && last_mmap)
+ 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
+@@ -184,6 +195,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = last_mmap ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
+ 	info.align_offset = shared_align_offset(last_mmap, pgoff);
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 	if (!(addr & ~PAGE_MASK))
+ 		goto found_addr;
+@@ -249,6 +261,13 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 	mm->mmap_legacy_base = mmap_legacy_base();
+ 	mm->mmap_base = mmap_upper_limit();
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (mm->pax_flags & MF_PAX_RANDMMAP) {
++		mm->mmap_legacy_base += mm->delta_mmap;
++		mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++	}
++#endif
++
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = mm->mmap_legacy_base;
+ 		mm->get_unmapped_area = arch_get_unmapped_area;
+diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
+index 47ee620..1107387 100644
+--- a/arch/parisc/kernel/traps.c
++++ b/arch/parisc/kernel/traps.c
+@@ -726,9 +726,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
+ 
+ 			down_read(&current->mm->mmap_sem);
+ 			vma = find_vma(current->mm,regs->iaoq[0]);
+-			if (vma && (regs->iaoq[0] >= vma->vm_start)
+-				&& (vma->vm_flags & VM_EXEC)) {
+-
++			if (vma && (regs->iaoq[0] >= vma->vm_start)) {
+ 				fault_address = regs->iaoq[0];
+ 				fault_space = regs->iasq[0];
+ 
+diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
+index d27e388..addd2dc 100644
+--- a/arch/parisc/mm/fault.c
++++ b/arch/parisc/mm/fault.c
+@@ -15,6 +15,7 @@
+ #include <linux/sched.h>
+ #include <linux/interrupt.h>
+ #include <linux/module.h>
++#include <linux/unistd.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/traps.h>
+@@ -50,7 +51,7 @@ int show_unhandled_signals = 1;
+ static unsigned long
+ parisc_acctyp(unsigned long code, unsigned int inst)
+ {
+-	if (code == 6 || code == 16)
++	if (code == 6 || code == 7 || code == 16)
+ 	    return VM_EXEC;
+ 
+ 	switch (inst & 0xf0000000) {
+@@ -136,6 +137,116 @@ parisc_acctyp(unsigned long code, unsigned int inst)
+ 			}
+ #endif
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++/*
++ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address)
++ *
++ * returns 1 when task should be killed
++ *         2 when rt_sigreturn trampoline was detected
++ *         3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++	int err;
++
++	do { /* PaX: unpatched PLT emulation */
++		unsigned int bl, depwi;
++
++		err = get_user(bl, (unsigned int *)instruction_pointer(regs));
++		err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4));
++
++		if (err)
++			break;
++
++		if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) {
++			unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12;
++
++			err = get_user(ldw, (unsigned int *)addr);
++			err |= get_user(bv, (unsigned int *)(addr+4));
++			err |= get_user(ldw2, (unsigned int *)(addr+8));
++
++			if (err)
++				break;
++
++			if (ldw == 0x0E801096U &&
++			    bv == 0xEAC0C000U &&
++			    ldw2 == 0x0E881095U)
++			{
++				unsigned int resolver, map;
++
++				err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8));
++				err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12));
++				if (err)
++					break;
++
++				regs->gr[20] = instruction_pointer(regs)+8;
++				regs->gr[21] = map;
++				regs->gr[22] = resolver;
++				regs->iaoq[0] = resolver | 3UL;
++				regs->iaoq[1] = regs->iaoq[0] + 4;
++				return 3;
++			}
++		}
++	} while (0);
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++
++#ifndef CONFIG_PAX_EMUSIGRT
++	if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
++		return 1;
++#endif
++
++	do { /* PaX: rt_sigreturn emulation */
++		unsigned int ldi1, ldi2, bel, nop;
++
++		err = get_user(ldi1, (unsigned int *)instruction_pointer(regs));
++		err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4));
++		err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8));
++		err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12));
++
++		if (err)
++			break;
++
++		if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) &&
++		    ldi2 == 0x3414015AU &&
++		    bel == 0xE4008200U &&
++		    nop == 0x08000240U)
++		{
++			regs->gr[25] = (ldi1 & 2) >> 1;
++			regs->gr[20] = __NR_rt_sigreturn;
++			regs->gr[31] = regs->iaoq[1] + 16;
++			regs->sr[0] = regs->iasq[1];
++			regs->iaoq[0] = 0x100UL;
++			regs->iaoq[1] = regs->iaoq[0] + 4;
++			regs->iasq[0] = regs->sr[2];
++			regs->iasq[1] = regs->sr[2];
++			return 2;
++		}
++	} while (0);
++#endif
++
++	return 1;
++}
++
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 5; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ int fixup_exception(struct pt_regs *regs)
+ {
+ 	const struct exception_table_entry *fix;
+@@ -234,8 +345,33 @@ retry:
+ 
+ good_area:
+ 
+-	if ((vma->vm_flags & acc_type) != acc_type)
++	if ((vma->vm_flags & acc_type) != acc_type) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) &&
++		    (address & ~3UL) == instruction_pointer(regs))
++		{
++			up_read(&mm->mmap_sem);
++			switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++			case 3:
++				return;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++			case 2:
++				return;
++#endif
++
++			}
++			pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]);
++			do_group_exit(SIGKILL);
++		}
++#endif
++
+ 		goto bad_area;
++	}
+ 
+ 	/*
+ 	 * If for any reason at all we couldn't handle the fault, make
+diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
+index ee3c660..afa4212 100644
+--- a/arch/powerpc/Kconfig
++++ b/arch/powerpc/Kconfig
+@@ -394,6 +394,7 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
+ config KEXEC
+ 	bool "kexec system call"
+ 	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
++	depends on !GRKERNSEC_KMEM
+ 	help
+ 	  kexec is a system call that implements the ability to shutdown your
+ 	  current kernel, and to start another kernel.  It is like a reboot
+diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
+index e3b1d41..8e81edf 100644
+--- a/arch/powerpc/include/asm/atomic.h
++++ b/arch/powerpc/include/asm/atomic.h
+@@ -523,6 +523,16 @@ static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
+ 	return t1;
+ }
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ #endif /* __powerpc64__ */
+ 
+ #endif /* __KERNEL__ */
+diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
+index f89da80..7f5b05a 100644
+--- a/arch/powerpc/include/asm/barrier.h
++++ b/arch/powerpc/include/asm/barrier.h
+@@ -73,7 +73,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	__lwsync();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
+index ed0afc1..0332825 100644
+--- a/arch/powerpc/include/asm/cache.h
++++ b/arch/powerpc/include/asm/cache.h
+@@ -3,6 +3,7 @@
+ 
+ #ifdef __KERNEL__
+ 
++#include <linux/const.h>
+ 
+ /* bytes per L1 cache line */
+ #if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
+@@ -22,7 +23,7 @@
+ #define L1_CACHE_SHIFT		7
+ #endif
+ 
+-#define	L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define	L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define	SMP_CACHE_BYTES		L1_CACHE_BYTES
+ 
+diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
+index 935b5e7..7001d2d 100644
+--- a/arch/powerpc/include/asm/elf.h
++++ b/arch/powerpc/include/asm/elf.h
+@@ -28,8 +28,19 @@
+    the loader.  We need to make sure that it is out of the way of the program
+    that it will "exec", and that there is sufficient room for the brk.  */
+ 
+-extern unsigned long randomize_et_dyn(unsigned long base);
+-#define ELF_ET_DYN_BASE		(randomize_et_dyn(0x20000000))
++#define ELF_ET_DYN_BASE		(0x20000000)
++
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(0x10000000UL)
++
++#ifdef __powerpc64__
++#define PAX_DELTA_MMAP_LEN	(is_32bit_task() ? 16 : 28)
++#define PAX_DELTA_STACK_LEN	(is_32bit_task() ? 16 : 28)
++#else
++#define PAX_DELTA_MMAP_LEN	15
++#define PAX_DELTA_STACK_LEN	15
++#endif
++#endif
+ 
+ #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
+ 
+@@ -127,10 +138,6 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+ 	(0x7ff >> (PAGE_SHIFT - 12)) : \
+ 	(0x3ffff >> (PAGE_SHIFT - 12)))
+ 
+-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+-#define arch_randomize_brk arch_randomize_brk
+-
+-
+ #ifdef CONFIG_SPU_BASE
+ /* Notes used in ET_CORE. Note name is "SPU/<fd>/<filename>". */
+ #define NT_SPU		1
+diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
+index 8196e9c..d83a9f3 100644
+--- a/arch/powerpc/include/asm/exec.h
++++ b/arch/powerpc/include/asm/exec.h
+@@ -4,6 +4,6 @@
+ #ifndef _ASM_POWERPC_EXEC_H
+ #define _ASM_POWERPC_EXEC_H
+ 
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) ((x) & ~0xfUL)
+ 
+ #endif /* _ASM_POWERPC_EXEC_H */
+diff --git a/arch/powerpc/include/asm/kmap_types.h b/arch/powerpc/include/asm/kmap_types.h
+index 5acabbd..7ea14fa 100644
+--- a/arch/powerpc/include/asm/kmap_types.h
++++ b/arch/powerpc/include/asm/kmap_types.h
+@@ -10,7 +10,7 @@
+  * 2 of the License, or (at your option) any later version.
+  */
+ 
+-#define KM_TYPE_NR 16
++#define KM_TYPE_NR 17
+ 
+ #endif	/* __KERNEL__ */
+ #endif	/* _ASM_POWERPC_KMAP_TYPES_H */
+diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
+index b8da913..60b608a 100644
+--- a/arch/powerpc/include/asm/local.h
++++ b/arch/powerpc/include/asm/local.h
+@@ -9,15 +9,26 @@ typedef struct
+ 	atomic_long_t a;
+ } local_t;
+ 
++typedef struct
++{
++	atomic_long_unchecked_t a;
++} local_unchecked_t;
++
+ #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
+ 
+ #define local_read(l)	atomic_long_read(&(l)->a)
++#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
+ #define local_set(l,i)	atomic_long_set(&(l)->a, (i))
++#define local_set_unchecked(l,i)	atomic_long_set_unchecked(&(l)->a, (i))
+ 
+ #define local_add(i,l)	atomic_long_add((i),(&(l)->a))
++#define local_add_unchecked(i,l)	atomic_long_add_unchecked((i),(&(l)->a))
+ #define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
++#define local_sub_unchecked(i,l)	atomic_long_sub_unchecked((i),(&(l)->a))
+ #define local_inc(l)	atomic_long_inc(&(l)->a)
++#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
+ #define local_dec(l)	atomic_long_dec(&(l)->a)
++#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
+ 
+ static __inline__ long local_add_return(long a, local_t *l)
+ {
+@@ -35,6 +46,7 @@ static __inline__ long local_add_return(long a, local_t *l)
+ 
+ 	return t;
+ }
++#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
+ 
+ #define local_add_negative(a, l)	(local_add_return((a), (l)) < 0)
+ 
+@@ -54,6 +66,7 @@ static __inline__ long local_sub_return(long a, local_t *l)
+ 
+ 	return t;
+ }
++#define local_sub_return_unchecked(i, l) atomic_long_sub_return_unchecked((i), (&(l)->a))
+ 
+ static __inline__ long local_inc_return(local_t *l)
+ {
+@@ -101,6 +114,8 @@ static __inline__ long local_dec_return(local_t *l)
+ 
+ #define local_cmpxchg(l, o, n) \
+ 	(cmpxchg_local(&((l)->a.counter), (o), (n)))
++#define local_cmpxchg_unchecked(l, o, n) \
++	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+ #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
+ 
+ /**
+diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
+index 8565c25..2865190 100644
+--- a/arch/powerpc/include/asm/mman.h
++++ b/arch/powerpc/include/asm/mman.h
+@@ -24,7 +24,7 @@ static inline unsigned long arch_calc_vm_prot_bits(unsigned long prot)
+ }
+ #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot)
+ 
+-static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
++static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags)
+ {
+ 	return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0);
+ }
+diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
+index 32e4e21..62afb12 100644
+--- a/arch/powerpc/include/asm/page.h
++++ b/arch/powerpc/include/asm/page.h
+@@ -230,8 +230,9 @@ extern long long virt_phys_offset;
+  * and needs to be executable.  This means the whole heap ends
+  * up being executable.
+  */
+-#define VM_DATA_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
+-				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
++#define VM_DATA_DEFAULT_FLAGS32 \
++	(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
++	 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+ 
+ #define VM_DATA_DEFAULT_FLAGS64	(VM_READ | VM_WRITE | \
+ 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+@@ -259,6 +260,9 @@ extern long long virt_phys_offset;
+ #define is_kernel_addr(x)	((x) >= PAGE_OFFSET)
+ #endif
+ 
++#define ktla_ktva(addr)		(addr)
++#define ktva_ktla(addr)		(addr)
++
+ #ifndef CONFIG_PPC_BOOK3S_64
+ /*
+  * Use the top bit of the higher-level page table entries to indicate whether
+diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h
+index 88693ce..ac6f9ab 100644
+--- a/arch/powerpc/include/asm/page_64.h
++++ b/arch/powerpc/include/asm/page_64.h
+@@ -153,15 +153,18 @@ do {						\
+  * stack by default, so in the absence of a PT_GNU_STACK program header
+  * we turn execute permission off.
+  */
+-#define VM_STACK_DEFAULT_FLAGS32	(VM_READ | VM_WRITE | VM_EXEC | \
+-					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
++#define VM_STACK_DEFAULT_FLAGS32 \
++	(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
++	 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+ 
+ #define VM_STACK_DEFAULT_FLAGS64	(VM_READ | VM_WRITE | \
+ 					 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+ 
++#ifndef CONFIG_PAX_PAGEEXEC
+ #define VM_STACK_DEFAULT_FLAGS \
+ 	(is_32bit_task() ? \
+ 	 VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64)
++#endif
+ 
+ #include <asm-generic/getorder.h>
+ 
+diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
+index 4b0be20..c15a27d 100644
+--- a/arch/powerpc/include/asm/pgalloc-64.h
++++ b/arch/powerpc/include/asm/pgalloc-64.h
+@@ -54,6 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+ #ifndef CONFIG_PPC_64K_PAGES
+ 
+ #define pgd_populate(MM, PGD, PUD)	pgd_set(PGD, PUD)
++#define pgd_populate_kernel(MM, PGD, PUD)	pgd_populate((MM), (PGD), (PUD))
+ 
+ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+ {
+@@ -71,6 +72,11 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+ 	pud_set(pud, (unsigned long)pmd);
+ }
+ 
++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
++{
++	pud_populate(mm, pud, pmd);
++}
++
+ #define pmd_populate(mm, pmd, pte_page) \
+ 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
+ #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte))
+@@ -173,6 +179,7 @@ extern void __tlb_remove_table(void *_table);
+ #endif
+ 
+ #define pud_populate(mm, pud, pmd)	pud_set(pud, (unsigned long)pmd)
++#define pud_populate_kernel(mm, pud, pmd)	pud_populate((mm), (pud), (pmd))
+ 
+ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
+ 				       pte_t *pte)
+diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
+index 3ebb188..e17dddf 100644
+--- a/arch/powerpc/include/asm/pgtable.h
++++ b/arch/powerpc/include/asm/pgtable.h
+@@ -2,6 +2,7 @@
+ #define _ASM_POWERPC_PGTABLE_H
+ #ifdef __KERNEL__
+ 
++#include <linux/const.h>
+ #ifndef __ASSEMBLY__
+ #include <linux/mmdebug.h>
+ #include <asm/processor.h>		/* For TASK_SIZE */
+diff --git a/arch/powerpc/include/asm/pte-hash32.h b/arch/powerpc/include/asm/pte-hash32.h
+index 4aad413..85d86bf 100644
+--- a/arch/powerpc/include/asm/pte-hash32.h
++++ b/arch/powerpc/include/asm/pte-hash32.h
+@@ -21,6 +21,7 @@
+ #define _PAGE_FILE	0x004	/* when !present: nonlinear file mapping */
+ #define _PAGE_USER	0x004	/* usermode access allowed */
+ #define _PAGE_GUARDED	0x008	/* G: prohibit speculative access */
++#define _PAGE_EXEC	_PAGE_GUARDED
+ #define _PAGE_COHERENT	0x010	/* M: enforce memory coherence (SMP systems) */
+ #define _PAGE_NO_CACHE	0x020	/* I: cache inhibit */
+ #define _PAGE_WRITETHRU	0x040	/* W: cache write-through */
+diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
+index ce17815..c5574cc 100644
+--- a/arch/powerpc/include/asm/reg.h
++++ b/arch/powerpc/include/asm/reg.h
+@@ -249,6 +249,7 @@
+ #define SPRN_DBCR	0x136	/* e300 Data Breakpoint Control Reg */
+ #define SPRN_DSISR	0x012	/* Data Storage Interrupt Status Register */
+ #define   DSISR_NOHPTE		0x40000000	/* no translation found */
++#define   DSISR_GUARDED		0x10000000	/* fetch from guarded storage */
+ #define   DSISR_PROTFAULT	0x08000000	/* protection fault */
+ #define   DSISR_ISSTORE		0x02000000	/* access was a store */
+ #define   DSISR_DABRMATCH	0x00400000	/* hit data breakpoint */
+diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
+index 084e080..9415a3d 100644
+--- a/arch/powerpc/include/asm/smp.h
++++ b/arch/powerpc/include/asm/smp.h
+@@ -51,7 +51,7 @@ struct smp_ops_t {
+ 	int   (*cpu_disable)(void);
+ 	void  (*cpu_die)(unsigned int nr);
+ 	int   (*cpu_bootable)(unsigned int nr);
+-};
++} __no_const;
+ 
+ extern void smp_send_debugger_break(void);
+ extern void start_secondary_resume(void);
+diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
+index b034ecd..af7e31f 100644
+--- a/arch/powerpc/include/asm/thread_info.h
++++ b/arch/powerpc/include/asm/thread_info.h
+@@ -107,6 +107,8 @@ static inline struct thread_info *current_thread_info(void)
+ #if defined(CONFIG_PPC64)
+ #define TIF_ELF2ABI		18	/* function descriptors must die! */
+ #endif
++/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
++#define TIF_GRSEC_SETXID	6	/* update credentials on syscall entry/exit */
+ 
+ /* as above, but as bit values */
+ #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
+@@ -125,9 +127,10 @@ static inline struct thread_info *current_thread_info(void)
+ #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
+ #define _TIF_EMULATE_STACK_STORE	(1<<TIF_EMULATE_STACK_STORE)
+ #define _TIF_NOHZ		(1<<TIF_NOHZ)
++#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
+ #define _TIF_SYSCALL_T_OR_A	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
+ 				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \
+-				 _TIF_NOHZ)
++				 _TIF_NOHZ | _TIF_GRSEC_SETXID)
+ 
+ #define _TIF_USER_WORK_MASK	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+ 				 _TIF_NOTIFY_RESUME | _TIF_UPROBE | \
+diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
+index 9485b43..3bd3c16 100644
+--- a/arch/powerpc/include/asm/uaccess.h
++++ b/arch/powerpc/include/asm/uaccess.h
+@@ -58,6 +58,7 @@
+ 
+ #endif
+ 
++#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
+ #define access_ok(type, addr, size)		\
+ 	(__chk_user_ptr(addr),			\
+ 	 __access_ok((__force unsigned long)(addr), (size), get_fs()))
+@@ -318,52 +319,6 @@ do {								\
+ extern unsigned long __copy_tofrom_user(void __user *to,
+ 		const void __user *from, unsigned long size);
+ 
+-#ifndef __powerpc64__
+-
+-static inline unsigned long copy_from_user(void *to,
+-		const void __user *from, unsigned long n)
+-{
+-	unsigned long over;
+-
+-	if (access_ok(VERIFY_READ, from, n))
+-		return __copy_tofrom_user((__force void __user *)to, from, n);
+-	if ((unsigned long)from < TASK_SIZE) {
+-		over = (unsigned long)from + n - TASK_SIZE;
+-		return __copy_tofrom_user((__force void __user *)to, from,
+-				n - over) + over;
+-	}
+-	return n;
+-}
+-
+-static inline unsigned long copy_to_user(void __user *to,
+-		const void *from, unsigned long n)
+-{
+-	unsigned long over;
+-
+-	if (access_ok(VERIFY_WRITE, to, n))
+-		return __copy_tofrom_user(to, (__force void __user *)from, n);
+-	if ((unsigned long)to < TASK_SIZE) {
+-		over = (unsigned long)to + n - TASK_SIZE;
+-		return __copy_tofrom_user(to, (__force void __user *)from,
+-				n - over) + over;
+-	}
+-	return n;
+-}
+-
+-#else /* __powerpc64__ */
+-
+-#define __copy_in_user(to, from, size) \
+-	__copy_tofrom_user((to), (from), (size))
+-
+-extern unsigned long copy_from_user(void *to, const void __user *from,
+-				    unsigned long n);
+-extern unsigned long copy_to_user(void __user *to, const void *from,
+-				  unsigned long n);
+-extern unsigned long copy_in_user(void __user *to, const void __user *from,
+-				  unsigned long n);
+-
+-#endif /* __powerpc64__ */
+-
+ static inline unsigned long __copy_from_user_inatomic(void *to,
+ 		const void __user *from, unsigned long n)
+ {
+@@ -387,6 +342,10 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
+ 		if (ret == 0)
+ 			return 0;
+ 	}
++
++	if (!__builtin_constant_p(n))
++		check_object_size(to, n, false);
++
+ 	return __copy_tofrom_user((__force void __user *)to, from, n);
+ }
+ 
+@@ -413,6 +372,10 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
+ 		if (ret == 0)
+ 			return 0;
+ 	}
++
++	if (!__builtin_constant_p(n))
++		check_object_size(from, n, true);
++
+ 	return __copy_tofrom_user(to, (__force const void __user *)from, n);
+ }
+ 
+@@ -430,6 +393,92 @@ static inline unsigned long __copy_to_user(void __user *to,
+ 	return __copy_to_user_inatomic(to, from, size);
+ }
+ 
++#ifndef __powerpc64__
++
++static inline unsigned long __must_check copy_from_user(void *to,
++		const void __user *from, unsigned long n)
++{
++	unsigned long over;
++
++	if ((long)n < 0)
++		return n;
++
++	if (access_ok(VERIFY_READ, from, n)) {
++		if (!__builtin_constant_p(n))
++			check_object_size(to, n, false);
++		return __copy_tofrom_user((__force void __user *)to, from, n);
++	}
++	if ((unsigned long)from < TASK_SIZE) {
++		over = (unsigned long)from + n - TASK_SIZE;
++		if (!__builtin_constant_p(n - over))
++			check_object_size(to, n - over, false);
++		return __copy_tofrom_user((__force void __user *)to, from,
++				n - over) + over;
++	}
++	return n;
++}
++
++static inline unsigned long __must_check copy_to_user(void __user *to,
++		const void *from, unsigned long n)
++{
++	unsigned long over;
++
++	if ((long)n < 0)
++		return n;
++
++	if (access_ok(VERIFY_WRITE, to, n)) {
++		if (!__builtin_constant_p(n))
++			check_object_size(from, n, true);
++		return __copy_tofrom_user(to, (__force void __user *)from, n);
++	}
++	if ((unsigned long)to < TASK_SIZE) {
++		over = (unsigned long)to + n - TASK_SIZE;
++		if (!__builtin_constant_p(n))
++			check_object_size(from, n - over, true);
++		return __copy_tofrom_user(to, (__force void __user *)from,
++				n - over) + over;
++	}
++	return n;
++}
++
++#else /* __powerpc64__ */
++
++#define __copy_in_user(to, from, size) \
++	__copy_tofrom_user((to), (from), (size))
++
++static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++	if ((long)n < 0 || n > INT_MAX)
++		return n;
++
++	if (!__builtin_constant_p(n))
++		check_object_size(to, n, false);
++
++	if (likely(access_ok(VERIFY_READ, from, n)))
++		n = __copy_from_user(to, from, n);
++	else
++		memset(to, 0, n);
++	return n;
++}
++
++static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n)
++{
++	if ((long)n < 0 || n > INT_MAX)
++		return n;
++
++	if (likely(access_ok(VERIFY_WRITE, to, n))) {
++		if (!__builtin_constant_p(n))
++			check_object_size(from, n, true);
++		n = __copy_to_user(to, from, n);
++	}
++	return n;
++}
++
++extern unsigned long copy_in_user(void __user *to, const void __user *from,
++				  unsigned long n);
++
++#endif /* __powerpc64__ */
++
+ extern unsigned long __clear_user(void __user *addr, unsigned long size);
+ 
+ static inline unsigned long clear_user(void __user *addr, unsigned long size)
+diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
+index fcc9a89..10f8e7e 100644
+--- a/arch/powerpc/kernel/Makefile
++++ b/arch/powerpc/kernel/Makefile
+@@ -14,6 +14,11 @@ CFLAGS_prom_init.o      += -fPIC
+ CFLAGS_btext.o		+= -fPIC
+ endif
+ 
++CFLAGS_REMOVE_cputable.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
++CFLAGS_REMOVE_prom_init.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
++CFLAGS_REMOVE_btext.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
++CFLAGS_REMOVE_prom.o = $(LATENT_ENTROPY_PLUGIN_CFLAGS)
++
+ ifdef CONFIG_FUNCTION_TRACER
+ # Do not trace early boot code
+ CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
+@@ -26,6 +31,8 @@ CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
+ CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
+ endif
+ 
++CFLAGS_REMOVE_prom_init.o += $(LATENT_ENTROPY_PLUGIN_CFLAGS)
++
+ obj-y				:= cputable.o ptrace.o syscalls.o \
+ 				   irq.o align.o signal_32.o pmc.o vdso.o \
+ 				   process.o systbl.o idle.o \
+diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
+index 063b65d..7a26e9d 100644
+--- a/arch/powerpc/kernel/exceptions-64e.S
++++ b/arch/powerpc/kernel/exceptions-64e.S
+@@ -771,6 +771,7 @@ storage_fault_common:
+ 	std	r14,_DAR(r1)
+ 	std	r15,_DSISR(r1)
+ 	addi	r3,r1,STACK_FRAME_OVERHEAD
++	bl	.save_nvgprs
+ 	mr	r4,r14
+ 	mr	r5,r15
+ 	ld	r14,PACA_EXGEN+EX_R14(r13)
+@@ -779,8 +780,7 @@ storage_fault_common:
+ 	cmpdi	r3,0
+ 	bne-	1f
+ 	b	.ret_from_except_lite
+-1:	bl	.save_nvgprs
+-	mr	r5,r3
++1:	mr	r5,r3
+ 	addi	r3,r1,STACK_FRAME_OVERHEAD
+ 	ld	r4,_DAR(r1)
+ 	bl	.bad_page_fault
+diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
+index 5193116..1fed658 100644
+--- a/arch/powerpc/kernel/exceptions-64s.S
++++ b/arch/powerpc/kernel/exceptions-64s.S
+@@ -1584,10 +1584,10 @@ handle_page_fault:
+ 11:	ld	r4,_DAR(r1)
+ 	ld	r5,_DSISR(r1)
+ 	addi	r3,r1,STACK_FRAME_OVERHEAD
++	bl	.save_nvgprs
+ 	bl	.do_page_fault
+ 	cmpdi	r3,0
+ 	beq+	12f
+-	bl	.save_nvgprs
+ 	mr	r5,r3
+ 	addi	r3,r1,STACK_FRAME_OVERHEAD
+ 	lwz	r4,_DAR(r1)
+diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
+index 1d0848b..d74685f 100644
+--- a/arch/powerpc/kernel/irq.c
++++ b/arch/powerpc/kernel/irq.c
+@@ -447,6 +447,8 @@ void migrate_irqs(void)
+ }
+ #endif
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ static inline void check_stack_overflow(void)
+ {
+ #ifdef CONFIG_DEBUG_STACKOVERFLOW
+@@ -459,6 +461,7 @@ static inline void check_stack_overflow(void)
+ 		printk("do_IRQ: stack overflow: %ld\n",
+ 			sp - sizeof(struct thread_info));
+ 		dump_stack();
++		gr_handle_kernel_exploit();
+ 	}
+ #endif
+ }
+diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
+index 6cff040..74ac5d1b 100644
+--- a/arch/powerpc/kernel/module_32.c
++++ b/arch/powerpc/kernel/module_32.c
+@@ -161,7 +161,7 @@ int module_frob_arch_sections(Elf32_Ehdr *hdr,
+ 			me->arch.core_plt_section = i;
+ 	}
+ 	if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
+-		printk("Module doesn't contain .plt or .init.plt sections.\n");
++		printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name);
+ 		return -ENOEXEC;
+ 	}
+ 
+@@ -191,11 +191,16 @@ static uint32_t do_plt_call(void *location,
+ 
+ 	DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location);
+ 	/* Init, or core PLT? */
+-	if (location >= mod->module_core
+-	    && location < mod->module_core + mod->core_size)
++	if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) ||
++	    (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw))
+ 		entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
+-	else
++	else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) ||
++		 (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw))
+ 		entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
++	else {
++		printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name);
++		return ~0UL;
++	}
+ 
+ 	/* Find this entry, or if that fails, the next avail. entry */
+ 	while (entry->jump[0]) {
+@@ -299,7 +304,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
+ 	}
+ #ifdef CONFIG_DYNAMIC_FTRACE
+ 	module->arch.tramp =
+-		do_plt_call(module->module_core,
++		do_plt_call(module->module_core_rx,
+ 			    (unsigned long)ftrace_caller,
+ 			    sechdrs, module);
+ #endif
+diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
+index 31d0215..206af70 100644
+--- a/arch/powerpc/kernel/process.c
++++ b/arch/powerpc/kernel/process.c
+@@ -1031,8 +1031,8 @@ void show_regs(struct pt_regs * regs)
+ 	 * Lookup NIP late so we have the best change of getting the
+ 	 * above info out without failing
+ 	 */
+-	printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
+-	printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
++	printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip);
++	printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link);
+ #endif
+ 	show_stack(current, (unsigned long *) regs->gpr[1]);
+ 	if (!user_mode(regs))
+@@ -1554,10 +1554,10 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
+ 		newsp = stack[0];
+ 		ip = stack[STACK_FRAME_LR_SAVE];
+ 		if (!firstframe || ip != lr) {
+-			printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
++			printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip);
+ #ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ 			if ((ip == rth || ip == mrth) && curr_frame >= 0) {
+-				printk(" (%pS)",
++				printk(" (%pA)",
+ 				       (void *)current->ret_stack[curr_frame].ret);
+ 				curr_frame--;
+ 			}
+@@ -1577,7 +1577,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
+ 			struct pt_regs *regs = (struct pt_regs *)
+ 				(sp + STACK_FRAME_OVERHEAD);
+ 			lr = regs->link;
+-			printk("--- Exception: %lx at %pS\n    LR = %pS\n",
++			printk("--- Exception: %lx at %pA\n    LR = %pA\n",
+ 			       regs->trap, (void *)regs->nip, (void *)lr);
+ 			firstframe = 1;
+ 		}
+@@ -1613,58 +1613,3 @@ void notrace __ppc64_runlatch_off(void)
+ 	mtspr(SPRN_CTRLT, ctrl);
+ }
+ #endif /* CONFIG_PPC64 */
+-
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+-		sp -= get_random_int() & ~PAGE_MASK;
+-	return sp & ~0xf;
+-}
+-
+-static inline unsigned long brk_rnd(void)
+-{
+-        unsigned long rnd = 0;
+-
+-	/* 8MB for 32bit, 1GB for 64bit */
+-	if (is_32bit_task())
+-		rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT)));
+-	else
+-		rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT)));
+-
+-	return rnd << PAGE_SHIFT;
+-}
+-
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+-	unsigned long base = mm->brk;
+-	unsigned long ret;
+-
+-#ifdef CONFIG_PPC_STD_MMU_64
+-	/*
+-	 * If we are using 1TB segments and we are allowed to randomise
+-	 * the heap, we can put it above 1TB so it is backed by a 1TB
+-	 * segment. Otherwise the heap will be in the bottom 1TB
+-	 * which always uses 256MB segments and this may result in a
+-	 * performance penalty.
+-	 */
+-	if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T))
+-		base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T);
+-#endif
+-
+-	ret = PAGE_ALIGN(base + brk_rnd());
+-
+-	if (ret < mm->brk)
+-		return mm->brk;
+-
+-	return ret;
+-}
+-
+-unsigned long randomize_et_dyn(unsigned long base)
+-{
+-	unsigned long ret = PAGE_ALIGN(base + brk_rnd());
+-
+-	if (ret < base)
+-		return base;
+-
+-	return ret;
+-}
+diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
+index 2e3d2bf..35df241 100644
+--- a/arch/powerpc/kernel/ptrace.c
++++ b/arch/powerpc/kernel/ptrace.c
+@@ -1762,6 +1762,10 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ /*
+  * We must return the syscall number to actually look up in the table.
+  * This can be -1L to skip running any syscall at all.
+@@ -1774,6 +1778,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
+ 
+ 	secure_computing_strict(regs->gpr[0]);
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+ 	    tracehook_report_syscall_entry(regs))
+ 		/*
+@@ -1808,6 +1817,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
+ {
+ 	int step;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	audit_syscall_exit(regs);
+ 
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
+index 4e47db6..6dcc96e 100644
+--- a/arch/powerpc/kernel/signal_32.c
++++ b/arch/powerpc/kernel/signal_32.c
+@@ -1013,7 +1013,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
+ 	/* Save user registers on the stack */
+ 	frame = &rt_sf->uc.uc_mcontext;
+ 	addr = frame;
+-	if (vdso32_rt_sigtramp && current->mm->context.vdso_base) {
++	if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
+ 		sigret = 0;
+ 		tramp = current->mm->context.vdso_base + vdso32_rt_sigtramp;
+ 	} else {
+diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
+index d501dc4..e5a0de0 100644
+--- a/arch/powerpc/kernel/signal_64.c
++++ b/arch/powerpc/kernel/signal_64.c
+@@ -760,7 +760,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
+ 	current->thread.fp_state.fpscr = 0;
+ 
+ 	/* Set up to return from userspace. */
+-	if (vdso64_rt_sigtramp && current->mm->context.vdso_base) {
++	if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) {
+ 		regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp;
+ 	} else {
+ 		err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]);
+diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
+index 33cd7a0..d615344 100644
+--- a/arch/powerpc/kernel/traps.c
++++ b/arch/powerpc/kernel/traps.c
+@@ -142,6 +142,8 @@ static unsigned __kprobes long oops_begin(struct pt_regs *regs)
+ 	return flags;
+ }
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
+ 			       int signr)
+ {
+@@ -191,6 +193,9 @@ static void __kprobes oops_end(unsigned long flags, struct pt_regs *regs,
+ 		panic("Fatal exception in interrupt");
+ 	if (panic_on_oops)
+ 		panic("Fatal exception");
++
++	gr_handle_kernel_exploit();
++
+ 	do_exit(signr);
+ }
+ 
+diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
+index 094e45c..d82b848 100644
+--- a/arch/powerpc/kernel/vdso.c
++++ b/arch/powerpc/kernel/vdso.c
+@@ -35,6 +35,7 @@
+ #include <asm/vdso.h>
+ #include <asm/vdso_datapage.h>
+ #include <asm/setup.h>
++#include <asm/mman.h>
+ 
+ #undef DEBUG
+ 
+@@ -221,7 +222,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+ 	vdso_base = VDSO32_MBASE;
+ #endif
+ 
+-	current->mm->context.vdso_base = 0;
++	current->mm->context.vdso_base = ~0UL;
+ 
+ 	/* vDSO has a problem and was disabled, just don't "enable" it for the
+ 	 * process
+@@ -241,7 +242,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+ 	vdso_base = get_unmapped_area(NULL, vdso_base,
+ 				      (vdso_pages << PAGE_SHIFT) +
+ 				      ((VDSO_ALIGNMENT - 1) & PAGE_MASK),
+-				      0, 0);
++				      0, MAP_PRIVATE | MAP_EXECUTABLE);
+ 	if (IS_ERR_VALUE(vdso_base)) {
+ 		rc = vdso_base;
+ 		goto fail_mmapsem;
+diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
+index 3cf541a..ab2d825 100644
+--- a/arch/powerpc/kvm/powerpc.c
++++ b/arch/powerpc/kvm/powerpc.c
+@@ -1153,7 +1153,7 @@ void kvmppc_init_lpid(unsigned long nr_lpids_param)
+ }
+ EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
+ 
+-int kvm_arch_init(void *opaque)
++int kvm_arch_init(const void *opaque)
+ {
+ 	return 0;
+ }
+diff --git a/arch/powerpc/lib/usercopy_64.c b/arch/powerpc/lib/usercopy_64.c
+index 5eea6f3..5d10396 100644
+--- a/arch/powerpc/lib/usercopy_64.c
++++ b/arch/powerpc/lib/usercopy_64.c
+@@ -9,22 +9,6 @@
+ #include <linux/module.h>
+ #include <asm/uaccess.h>
+ 
+-unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
+-{
+-	if (likely(access_ok(VERIFY_READ, from, n)))
+-		n = __copy_from_user(to, from, n);
+-	else
+-		memset(to, 0, n);
+-	return n;
+-}
+-
+-unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
+-{
+-	if (likely(access_ok(VERIFY_WRITE, to, n)))
+-		n = __copy_to_user(to, from, n);
+-	return n;
+-}
+-
+ unsigned long copy_in_user(void __user *to, const void __user *from,
+ 			   unsigned long n)
+ {
+@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user *to, const void __user *from,
+ 	return n;
+ }
+ 
+-EXPORT_SYMBOL(copy_from_user);
+-EXPORT_SYMBOL(copy_to_user);
+ EXPORT_SYMBOL(copy_in_user);
+ 
+diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
+index 010fabf..e5c18a4 100644
+--- a/arch/powerpc/mm/fault.c
++++ b/arch/powerpc/mm/fault.c
+@@ -33,6 +33,10 @@
+ #include <linux/magic.h>
+ #include <linux/ratelimit.h>
+ #include <linux/context_tracking.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/compiler.h>
++#include <linux/unistd.h>
+ 
+ #include <asm/firmware.h>
+ #include <asm/page.h>
+@@ -69,6 +73,33 @@ static inline int notify_page_fault(struct pt_regs *regs)
+ }
+ #endif
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++/*
++ * PaX: decide what to do with offenders (regs->nip = fault address)
++ *
++ * returns 1 when task should be killed
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++	return 1;
++}
++
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 5; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int __user *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ /*
+  * Check whether the instruction at regs->nip is a store using
+  * an update addressing form which will update r1.
+@@ -216,7 +247,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
+ 	 * indicate errors in DSISR but can validly be set in SRR1.
+ 	 */
+ 	if (trap == 0x400)
+-		error_code &= 0x48200000;
++		error_code &= 0x58200000;
+ 	else
+ 		is_write = error_code & DSISR_ISSTORE;
+ #else
+@@ -378,7 +409,7 @@ good_area:
+          * "undefined".  Of those that can be set, this is the only
+          * one which seems bad.
+          */
+-	if (error_code & 0x10000000)
++	if (error_code & DSISR_GUARDED)
+                 /* Guarded storage error. */
+ 		goto bad_area;
+ #endif /* CONFIG_8xx */
+@@ -393,7 +424,7 @@ good_area:
+ 		 * processors use the same I/D cache coherency mechanism
+ 		 * as embedded.
+ 		 */
+-		if (error_code & DSISR_PROTFAULT)
++		if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))
+ 			goto bad_area;
+ #endif /* CONFIG_PPC_STD_MMU */
+ 
+@@ -485,6 +516,23 @@ bad_area:
+ bad_area_nosemaphore:
+ 	/* User mode accesses cause a SIGSEGV */
+ 	if (user_mode(regs)) {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if (mm->pax_flags & MF_PAX_PAGEEXEC) {
++#ifdef CONFIG_PPC_STD_MMU
++			if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) {
++#else
++			if (is_exec && regs->nip == address) {
++#endif
++				switch (pax_handle_fetch_fault(regs)) {
++				}
++
++				pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]);
++				do_group_exit(SIGKILL);
++			}
++		}
++#endif
++
+ 		_exception(SIGSEGV, regs, code, address);
+ 		goto bail;
+ 	}
+diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
+index cb8bdbe..cde4bc7 100644
+--- a/arch/powerpc/mm/mmap.c
++++ b/arch/powerpc/mm/mmap.c
+@@ -53,10 +53,14 @@ static inline int mmap_is_legacy(void)
+ 	return sysctl_legacy_va_layout;
+ }
+ 
+-static unsigned long mmap_rnd(void)
++static unsigned long mmap_rnd(struct mm_struct *mm)
+ {
+ 	unsigned long rnd = 0;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (current->flags & PF_RANDOMIZE) {
+ 		/* 8MB for 32bit, 1GB for 64bit */
+ 		if (is_32bit_task())
+@@ -67,7 +71,7 @@ static unsigned long mmap_rnd(void)
+ 	return rnd << PAGE_SHIFT;
+ }
+ 
+-static inline unsigned long mmap_base(void)
++static inline unsigned long mmap_base(struct mm_struct *mm)
+ {
+ 	unsigned long gap = rlimit(RLIMIT_STACK);
+ 
+@@ -76,7 +80,7 @@ static inline unsigned long mmap_base(void)
+ 	else if (gap > MAX_GAP)
+ 		gap = MAX_GAP;
+ 
+-	return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
++	return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd(mm));
+ }
+ 
+ /*
+@@ -91,9 +95,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 	 */
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area;
+ 	} else {
+-		mm->mmap_base = mmap_base();
++		mm->mmap_base = mmap_base(mm);
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ 	}
+ }
+diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
+index b0c75cc..ef7fb93 100644
+--- a/arch/powerpc/mm/slice.c
++++ b/arch/powerpc/mm/slice.c
+@@ -103,7 +103,7 @@ static int slice_area_is_free(struct mm_struct *mm, unsigned long addr,
+ 	if ((mm->task_size - len) < addr)
+ 		return 0;
+ 	vma = find_vma(mm, addr);
+-	return (!vma || (addr + len) <= vma->vm_start);
++	return check_heap_stack_gap(vma, addr, len, 0);
+ }
+ 
+ static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
+@@ -277,6 +277,12 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
+ 	info.align_offset = 0;
+ 
+ 	addr = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (mm->pax_flags & MF_PAX_RANDMMAP)
++		addr += mm->delta_mmap;
++#endif
++
+ 	while (addr < TASK_SIZE) {
+ 		info.low_limit = addr;
+ 		if (!slice_scan_available(addr, available, 1, &addr))
+@@ -410,6 +416,11 @@ unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
+ 	if (fixed && addr > (mm->task_size - len))
+ 		return -ENOMEM;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP))
++		addr = 0;
++#endif
++
+ 	/* If hint, make sure it matches our alignment restrictions */
+ 	if (!fixed && addr) {
+ 		addr = _ALIGN_UP(addr, 1ul << pshift);
+diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+index 4278acf..67fd0e6 100644
+--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
++++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+@@ -400,8 +400,8 @@ static int scc_pciex_write_config(struct pci_bus *bus, unsigned int devfn,
+ }
+ 
+ static struct pci_ops scc_pciex_pci_ops = {
+-	scc_pciex_read_config,
+-	scc_pciex_write_config,
++	.read = scc_pciex_read_config,
++	.write = scc_pciex_write_config,
+ };
+ 
+ static void pciex_clear_intr_all(unsigned int __iomem *base)
+diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
+index 9098692..3d54cd1 100644
+--- a/arch/powerpc/platforms/cell/spufs/file.c
++++ b/arch/powerpc/platforms/cell/spufs/file.c
+@@ -280,9 +280,9 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+ 	return VM_FAULT_NOPAGE;
+ }
+ 
+-static int spufs_mem_mmap_access(struct vm_area_struct *vma,
++static ssize_t spufs_mem_mmap_access(struct vm_area_struct *vma,
+ 				unsigned long address,
+-				void *buf, int len, int write)
++				void *buf, size_t len, int write)
+ {
+ 	struct spu_context *ctx = vma->vm_file->private_data;
+ 	unsigned long offset = address - vma->vm_start;
+diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
+index 1d47061..0714963 100644
+--- a/arch/s390/include/asm/atomic.h
++++ b/arch/s390/include/asm/atomic.h
+@@ -412,6 +412,16 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
+ #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
+ #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ #define smp_mb__before_atomic_dec()	smp_mb()
+ #define smp_mb__after_atomic_dec()	smp_mb()
+ #define smp_mb__before_atomic_inc()	smp_mb()
+diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
+index 578680f..0eb3b11 100644
+--- a/arch/s390/include/asm/barrier.h
++++ b/arch/s390/include/asm/barrier.h
+@@ -36,7 +36,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	barrier();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
+index 4d7ccac..d03d0ad 100644
+--- a/arch/s390/include/asm/cache.h
++++ b/arch/s390/include/asm/cache.h
+@@ -9,8 +9,10 @@
+ #ifndef __ARCH_S390_CACHE_H
+ #define __ARCH_S390_CACHE_H
+ 
+-#define L1_CACHE_BYTES     256
++#include <linux/const.h>
++
+ #define L1_CACHE_SHIFT     8
++#define L1_CACHE_BYTES     (_AC(1,UL) << L1_CACHE_SHIFT)
+ #define NET_SKB_PAD	   32
+ 
+ #define __read_mostly __attribute__((__section__(".data..read_mostly")))
+diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
+index 78f4f87..598ce39 100644
+--- a/arch/s390/include/asm/elf.h
++++ b/arch/s390/include/asm/elf.h
+@@ -162,8 +162,14 @@ extern unsigned int vdso_enabled;
+    the loader.  We need to make sure that it is out of the way of the program
+    that it will "exec", and that there is sufficient room for the brk.  */
+ 
+-extern unsigned long randomize_et_dyn(unsigned long base);
+-#define ELF_ET_DYN_BASE		(randomize_et_dyn(STACK_TOP / 3 * 2))
++#define ELF_ET_DYN_BASE		(STACK_TOP / 3 * 2)
++
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL)
++
++#define PAX_DELTA_MMAP_LEN	(test_thread_flag(TIF_31BIT) ? 15 : 26)
++#define PAX_DELTA_STACK_LEN	(test_thread_flag(TIF_31BIT) ? 15 : 26)
++#endif
+ 
+ /* This yields a mask that user programs can use to figure out what
+    instruction set this CPU supports. */
+@@ -222,9 +228,6 @@ struct linux_binprm;
+ #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+ int arch_setup_additional_pages(struct linux_binprm *, int);
+ 
+-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+-#define arch_randomize_brk arch_randomize_brk
+-
+ void *fill_cpu_elf_notes(void *ptr, struct save_area *sa);
+ 
+ #endif
+diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
+index c4a93d6..4d2a9b4 100644
+--- a/arch/s390/include/asm/exec.h
++++ b/arch/s390/include/asm/exec.h
+@@ -7,6 +7,6 @@
+ #ifndef __ASM_EXEC_H
+ #define __ASM_EXEC_H
+ 
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) ((x) & ~0xfUL)
+ 
+ #endif /* __ASM_EXEC_H */
+diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
+index 79330af..254cf37 100644
+--- a/arch/s390/include/asm/uaccess.h
++++ b/arch/s390/include/asm/uaccess.h
+@@ -59,6 +59,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
+ 	__range_ok((unsigned long)(addr), (size));	\
+ })
+ 
++#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
+ #define access_ok(type, addr, size) __access_ok(addr, size)
+ 
+ /*
+@@ -245,6 +246,10 @@ static inline unsigned long __must_check
+ copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
+ 	might_fault();
++
++	if ((long)n < 0)
++		return n;
++
+ 	return __copy_to_user(to, from, n);
+ }
+ 
+@@ -268,6 +273,9 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
+ static inline unsigned long __must_check
+ __copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	return uaccess.copy_from_user(n, from, to);
+ }
+ 
+@@ -296,10 +304,14 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
+ static inline unsigned long __must_check
+ copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+-	unsigned int sz = __compiletime_object_size(to);
++	size_t sz = __compiletime_object_size(to);
+ 
+ 	might_fault();
+-	if (unlikely(sz != -1 && sz < n)) {
++
++	if ((long)n < 0)
++		return n;
++
++	if (unlikely(sz != (size_t)-1 && sz < n)) {
+ 		copy_from_user_overflow();
+ 		return n;
+ 	}
+diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
+index b89b591..fd9609d 100644
+--- a/arch/s390/kernel/module.c
++++ b/arch/s390/kernel/module.c
+@@ -169,11 +169,11 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
+ 
+ 	/* Increase core size by size of got & plt and set start
+ 	   offsets for got and plt. */
+-	me->core_size = ALIGN(me->core_size, 4);
+-	me->arch.got_offset = me->core_size;
+-	me->core_size += me->arch.got_size;
+-	me->arch.plt_offset = me->core_size;
+-	me->core_size += me->arch.plt_size;
++	me->core_size_rw = ALIGN(me->core_size_rw, 4);
++	me->arch.got_offset = me->core_size_rw;
++	me->core_size_rw += me->arch.got_size;
++	me->arch.plt_offset = me->core_size_rx;
++	me->core_size_rx += me->arch.plt_size;
+ 	return 0;
+ }
+ 
+@@ -289,7 +289,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ 		if (info->got_initialized == 0) {
+ 			Elf_Addr *gotent;
+ 
+-			gotent = me->module_core + me->arch.got_offset +
++			gotent = me->module_core_rw + me->arch.got_offset +
+ 				info->got_offset;
+ 			*gotent = val;
+ 			info->got_initialized = 1;
+@@ -312,7 +312,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ 			rc = apply_rela_bits(loc, val, 0, 64, 0);
+ 		else if (r_type == R_390_GOTENT ||
+ 			 r_type == R_390_GOTPLTENT) {
+-			val += (Elf_Addr) me->module_core - loc;
++			val += (Elf_Addr) me->module_core_rw - loc;
+ 			rc = apply_rela_bits(loc, val, 1, 32, 1);
+ 		}
+ 		break;
+@@ -325,7 +325,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ 	case R_390_PLTOFF64:	/* 16 bit offset from GOT to PLT. */
+ 		if (info->plt_initialized == 0) {
+ 			unsigned int *ip;
+-			ip = me->module_core + me->arch.plt_offset +
++			ip = me->module_core_rx + me->arch.plt_offset +
+ 				info->plt_offset;
+ #ifndef CONFIG_64BIT
+ 			ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
+@@ -350,7 +350,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ 			       val - loc + 0xffffUL < 0x1ffffeUL) ||
+ 			      (r_type == R_390_PLT32DBL &&
+ 			       val - loc + 0xffffffffULL < 0x1fffffffeULL)))
+-				val = (Elf_Addr) me->module_core +
++				val = (Elf_Addr) me->module_core_rx +
+ 					me->arch.plt_offset +
+ 					info->plt_offset;
+ 			val += rela->r_addend - loc;
+@@ -372,7 +372,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ 	case R_390_GOTOFF32:	/* 32 bit offset to GOT.  */
+ 	case R_390_GOTOFF64:	/* 64 bit offset to GOT. */
+ 		val = val + rela->r_addend -
+-			((Elf_Addr) me->module_core + me->arch.got_offset);
++			((Elf_Addr) me->module_core_rw + me->arch.got_offset);
+ 		if (r_type == R_390_GOTOFF16)
+ 			rc = apply_rela_bits(loc, val, 0, 16, 0);
+ 		else if (r_type == R_390_GOTOFF32)
+@@ -382,7 +382,7 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ 		break;
+ 	case R_390_GOTPC:	/* 32 bit PC relative offset to GOT. */
+ 	case R_390_GOTPCDBL:	/* 32 bit PC rel. off. to GOT shifted by 1. */
+-		val = (Elf_Addr) me->module_core + me->arch.got_offset +
++		val = (Elf_Addr) me->module_core_rw + me->arch.got_offset +
+ 			rela->r_addend - loc;
+ 		if (r_type == R_390_GOTPC)
+ 			rc = apply_rela_bits(loc, val, 1, 32, 0);
+diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
+index dd14532..1dfc145 100644
+--- a/arch/s390/kernel/process.c
++++ b/arch/s390/kernel/process.c
+@@ -242,37 +242,3 @@ unsigned long get_wchan(struct task_struct *p)
+ 	}
+ 	return 0;
+ }
+-
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+-		sp -= get_random_int() & ~PAGE_MASK;
+-	return sp & ~0xf;
+-}
+-
+-static inline unsigned long brk_rnd(void)
+-{
+-	/* 8MB for 32bit, 1GB for 64bit */
+-	if (is_32bit_task())
+-		return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
+-	else
+-		return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
+-}
+-
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+-	unsigned long ret;
+-
+-	ret = PAGE_ALIGN(mm->brk + brk_rnd());
+-	return (ret > mm->brk) ? ret : mm->brk;
+-}
+-
+-unsigned long randomize_et_dyn(unsigned long base)
+-{
+-	unsigned long ret;
+-
+-	if (!(current->flags & PF_RANDOMIZE))
+-		return base;
+-	ret = PAGE_ALIGN(base + brk_rnd());
+-	return (ret > base) ? ret : base;
+-}
+diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
+index 9b436c2..54fbf0a 100644
+--- a/arch/s390/mm/mmap.c
++++ b/arch/s390/mm/mmap.c
+@@ -95,9 +95,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 	 */
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = mmap_base_legacy();
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area;
+ 	} else {
+ 		mm->mmap_base = mmap_base();
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ 	}
+ }
+@@ -170,9 +182,21 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 	 */
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = mmap_base_legacy();
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 		mm->get_unmapped_area = s390_get_unmapped_area;
+ 	} else {
+ 		mm->mmap_base = mmap_base();
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ 		mm->get_unmapped_area = s390_get_unmapped_area_topdown;
+ 	}
+ }
+diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
+index ae3d59f..f65f075 100644
+--- a/arch/score/include/asm/cache.h
++++ b/arch/score/include/asm/cache.h
+@@ -1,7 +1,9 @@
+ #ifndef _ASM_SCORE_CACHE_H
+ #define _ASM_SCORE_CACHE_H
+ 
++#include <linux/const.h>
++
+ #define L1_CACHE_SHIFT		4
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #endif /* _ASM_SCORE_CACHE_H */
+diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
+index f9f3cd5..58ff438 100644
+--- a/arch/score/include/asm/exec.h
++++ b/arch/score/include/asm/exec.h
+@@ -1,6 +1,6 @@
+ #ifndef _ASM_SCORE_EXEC_H
+ #define _ASM_SCORE_EXEC_H
+ 
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) (x)
+ 
+ #endif /* _ASM_SCORE_EXEC_H */
+diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
+index a1519ad3..e8ac1ff 100644
+--- a/arch/score/kernel/process.c
++++ b/arch/score/kernel/process.c
+@@ -116,8 +116,3 @@ unsigned long get_wchan(struct task_struct *task)
+ 
+ 	return task_pt_regs(task)->cp0_epc;
+ }
+-
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+-	return sp;
+-}
+diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
+index ef9e555..331bd29 100644
+--- a/arch/sh/include/asm/cache.h
++++ b/arch/sh/include/asm/cache.h
+@@ -9,10 +9,11 @@
+ #define __ASM_SH_CACHE_H
+ #ifdef __KERNEL__
+ 
++#include <linux/const.h>
+ #include <linux/init.h>
+ #include <cpu/cache.h>
+ 
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define __read_mostly __attribute__((__section__(".data..read_mostly")))
+ 
+diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
+index 6777177..cb5e44f 100644
+--- a/arch/sh/mm/mmap.c
++++ b/arch/sh/mm/mmap.c
+@@ -36,6 +36,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_area_struct *vma;
+ 	int do_colour_align;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	if (flags & MAP_FIXED) {
+@@ -55,6 +56,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	if (filp || (flags & MAP_SHARED))
+ 		do_colour_align = 1;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		if (do_colour_align)
+ 			addr = COLOUR_ALIGN(addr, pgoff);
+@@ -62,14 +67,13 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 			addr = PAGE_ALIGN(addr);
+ 
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+ 	info.flags = 0;
+ 	info.length = len;
+-	info.low_limit = TASK_UNMAPPED_BASE;
++	info.low_limit = mm->mmap_base;
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = do_colour_align ? (PAGE_MASK & shm_align_mask) : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
+@@ -85,6 +89,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	struct mm_struct *mm = current->mm;
+ 	unsigned long addr = addr0;
+ 	int do_colour_align;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	if (flags & MAP_FIXED) {
+@@ -104,6 +109,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	if (filp || (flags & MAP_SHARED))
+ 		do_colour_align = 1;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	/* requesting a specific address */
+ 	if (addr) {
+ 		if (do_colour_align)
+@@ -112,8 +121,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 			addr = PAGE_ALIGN(addr);
+ 
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -135,6 +143,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.flags = 0;
+ 		info.low_limit = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap;
++#endif
++
+ 		info.high_limit = TASK_SIZE;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
+index be56a24..eaef2ca 100644
+--- a/arch/sparc/include/asm/atomic_64.h
++++ b/arch/sparc/include/asm/atomic_64.h
+@@ -14,18 +14,40 @@
+ #define ATOMIC64_INIT(i)	{ (i) }
+ 
+ #define atomic_read(v)		(*(volatile int *)&(v)->counter)
++static inline int atomic_read_unchecked(const atomic_unchecked_t *v)
++{
++	return *(const volatile int *)&v->counter;
++}
+ #define atomic64_read(v)	(*(volatile long *)&(v)->counter)
++static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v)
++{
++	return *(const volatile long *)&v->counter;
++}
+ 
+ #define atomic_set(v, i)	(((v)->counter) = i)
++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
++{
++	v->counter = i;
++}
+ #define atomic64_set(v, i)	(((v)->counter) = i)
++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
++{
++	v->counter = i;
++}
+ 
+ extern void atomic_add(int, atomic_t *);
++extern void atomic_add_unchecked(int, atomic_unchecked_t *);
+ extern void atomic64_add(long, atomic64_t *);
++extern void atomic64_add_unchecked(long, atomic64_unchecked_t *);
+ extern void atomic_sub(int, atomic_t *);
++extern void atomic_sub_unchecked(int, atomic_unchecked_t *);
+ extern void atomic64_sub(long, atomic64_t *);
++extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *);
+ 
+ extern int atomic_add_ret(int, atomic_t *);
++extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *);
+ extern long atomic64_add_ret(long, atomic64_t *);
++extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *);
+ extern int atomic_sub_ret(int, atomic_t *);
+ extern long atomic64_sub_ret(long, atomic64_t *);
+ 
+@@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomic64_t *);
+ #define atomic64_dec_return(v) atomic64_sub_ret(1, v)
+ 
+ #define atomic_inc_return(v) atomic_add_ret(1, v)
++static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_add_ret_unchecked(1, v);
++}
+ #define atomic64_inc_return(v) atomic64_add_ret(1, v)
++static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
++{
++	return atomic64_add_ret_unchecked(1, v);
++}
+ 
+ #define atomic_sub_return(i, v) atomic_sub_ret(i, v)
+ #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v)
+ 
+ #define atomic_add_return(i, v) atomic_add_ret(i, v)
++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
++{
++	return atomic_add_ret_unchecked(i, v);
++}
+ #define atomic64_add_return(i, v) atomic64_add_ret(i, v)
++static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
++{
++	return atomic64_add_ret_unchecked(i, v);
++}
+ 
+ /*
+  * atomic_inc_and_test - increment and test
+@@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomic64_t *);
+  * other cases.
+  */
+ #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
++static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_inc_return_unchecked(v) == 0;
++}
+ #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
+ 
+ #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0)
+@@ -59,25 +101,60 @@ extern long atomic64_sub_ret(long, atomic64_t *);
+ #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0)
+ 
+ #define atomic_inc(v) atomic_add(1, v)
++static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
++{
++	atomic_add_unchecked(1, v);
++}
+ #define atomic64_inc(v) atomic64_add(1, v)
++static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
++{
++	atomic64_add_unchecked(1, v);
++}
+ 
+ #define atomic_dec(v) atomic_sub(1, v)
++static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
++{
++	atomic_sub_unchecked(1, v);
++}
+ #define atomic64_dec(v) atomic64_sub(1, v)
++static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
++{
++	atomic64_sub_unchecked(1, v);
++}
+ 
+ #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0)
+ #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0)
+ 
+ #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
++{
++	return cmpxchg(&v->counter, old, new);
++}
+ #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
++{
++	return xchg(&v->counter, new);
++}
+ 
+ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+ {
+-	int c, old;
++	int c, old, new;
+ 	c = atomic_read(v);
+ 	for (;;) {
+-		if (unlikely(c == (u)))
++		if (unlikely(c == u))
+ 			break;
+-		old = atomic_cmpxchg((v), c, c + (a));
++
++		asm volatile("addcc %2, %0, %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++			     "tvs %%icc, 6\n"
++#endif
++
++			     : "=r" (new)
++			     : "0" (c), "ir" (a)
++			     : "cc");
++
++		old = atomic_cmpxchg(v, c, new);
+ 		if (likely(old == c))
+ 			break;
+ 		c = old;
+@@ -88,20 +165,35 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+ #define atomic64_cmpxchg(v, o, n) \
+ 	((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
+ #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
++static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new)
++{
++	return xchg(&v->counter, new);
++}
+ 
+ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
+ {
+-	long c, old;
++	long c, old, new;
+ 	c = atomic64_read(v);
+ 	for (;;) {
+-		if (unlikely(c == (u)))
++		if (unlikely(c == u))
+ 			break;
+-		old = atomic64_cmpxchg((v), c, c + (a));
++
++		asm volatile("addcc %2, %0, %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++			     "tvs %%xcc, 6\n"
++#endif
++
++			     : "=r" (new)
++			     : "0" (c), "ir" (a)
++			     : "cc");
++
++		old = atomic64_cmpxchg(v, c, new);
+ 		if (likely(old == c))
+ 			break;
+ 		c = old;
+ 	}
+-	return c != (u);
++	return c != u;
+ }
+ 
+ #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h
+index b5aad96..99d7465 100644
+--- a/arch/sparc/include/asm/barrier_64.h
++++ b/arch/sparc/include/asm/barrier_64.h
+@@ -57,7 +57,7 @@ do {	__asm__ __volatile__("ba,pt	%%xcc, 1f\n\t" \
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	barrier();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
+index 5bb6991..5c2132e 100644
+--- a/arch/sparc/include/asm/cache.h
++++ b/arch/sparc/include/asm/cache.h
+@@ -7,10 +7,12 @@
+ #ifndef _SPARC_CACHE_H
+ #define _SPARC_CACHE_H
+ 
++#include <linux/const.h>
++
+ #define ARCH_SLAB_MINALIGN	__alignof__(unsigned long long)
+ 
+ #define L1_CACHE_SHIFT 5
+-#define L1_CACHE_BYTES 32
++#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #ifdef CONFIG_SPARC32
+ #define SMP_CACHE_BYTES_SHIFT 5
+diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
+index a24e41f..47677ff 100644
+--- a/arch/sparc/include/asm/elf_32.h
++++ b/arch/sparc/include/asm/elf_32.h
+@@ -114,6 +114,13 @@ typedef struct {
+ 
+ #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	0x10000UL
++
++#define PAX_DELTA_MMAP_LEN	16
++#define PAX_DELTA_STACK_LEN	16
++#endif
++
+ /* This yields a mask that user programs can use to figure out what
+    instruction set this cpu supports.  This can NOT be done in userspace
+    on Sparc.  */
+diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
+index 370ca1e..d4f4a98 100644
+--- a/arch/sparc/include/asm/elf_64.h
++++ b/arch/sparc/include/asm/elf_64.h
+@@ -189,6 +189,13 @@ typedef struct {
+ #define ELF_ET_DYN_BASE		0x0000010000000000UL
+ #define COMPAT_ELF_ET_DYN_BASE	0x0000000070000000UL
+ 
++#ifdef CONFIG_PAX_ASLR
++#define PAX_ELF_ET_DYN_BASE	(test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL)
++
++#define PAX_DELTA_MMAP_LEN	(test_thread_flag(TIF_32BIT) ? 14 : 28)
++#define PAX_DELTA_STACK_LEN	(test_thread_flag(TIF_32BIT) ? 15 : 29)
++#endif
++
+ extern unsigned long sparc64_elf_hwcap;
+ #define ELF_HWCAP	sparc64_elf_hwcap
+ 
+diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
+index 9b1c36d..209298b 100644
+--- a/arch/sparc/include/asm/pgalloc_32.h
++++ b/arch/sparc/include/asm/pgalloc_32.h
+@@ -33,6 +33,7 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
+ }
+ 
+ #define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
++#define pgd_populate_kernel(MM, PGD, PMD)      pgd_populate((MM), (PGD), (PMD))
+ 
+ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
+ 				   unsigned long address)
+diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
+index 2c8d41f..f337fbc 100644
+--- a/arch/sparc/include/asm/pgalloc_64.h
++++ b/arch/sparc/include/asm/pgalloc_64.h
+@@ -21,6 +21,7 @@ static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
+ }
+ 
+ #define pgd_populate(MM, PGD, PUD)	__pgd_populate(PGD, PUD)
++#define pgd_populate_kernel(MM, PGD, PMD)	pgd_populate((MM), (PGD), (PMD))
+ 
+ static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+ {
+@@ -38,6 +39,7 @@ static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
+ }
+ 
+ #define pud_populate(MM, PUD, PMD)	__pud_populate(PUD, PMD)
++#define pud_populate_kernel(MM, PUD, PMD)	pud_populate((MM), (PUD), (PMD))
+ 
+ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+ {
+diff --git a/arch/sparc/include/asm/pgtable.h b/arch/sparc/include/asm/pgtable.h
+index 59ba6f6..4518128 100644
+--- a/arch/sparc/include/asm/pgtable.h
++++ b/arch/sparc/include/asm/pgtable.h
+@@ -5,4 +5,8 @@
+ #else
+ #include <asm/pgtable_32.h>
+ #endif
++
++#define ktla_ktva(addr)		(addr)
++#define ktva_ktla(addr)		(addr)
++
+ #endif
+diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
+index 502f632..da1917f 100644
+--- a/arch/sparc/include/asm/pgtable_32.h
++++ b/arch/sparc/include/asm/pgtable_32.h
+@@ -50,6 +50,9 @@ extern unsigned long calc_highpages(void);
+ #define PAGE_SHARED	SRMMU_PAGE_SHARED
+ #define PAGE_COPY	SRMMU_PAGE_COPY
+ #define PAGE_READONLY	SRMMU_PAGE_RDONLY
++#define PAGE_SHARED_NOEXEC	SRMMU_PAGE_SHARED_NOEXEC
++#define PAGE_COPY_NOEXEC	SRMMU_PAGE_COPY_NOEXEC
++#define PAGE_READONLY_NOEXEC	SRMMU_PAGE_RDONLY_NOEXEC
+ #define PAGE_KERNEL	SRMMU_PAGE_KERNEL
+ 
+ /* Top-level page directory - dummy used by init-mm.
+@@ -62,18 +65,18 @@ extern unsigned long ptr_in_current_pgd;
+ 
+ /*         xwr */
+ #define __P000  PAGE_NONE
+-#define __P001  PAGE_READONLY
+-#define __P010  PAGE_COPY
+-#define __P011  PAGE_COPY
++#define __P001  PAGE_READONLY_NOEXEC
++#define __P010  PAGE_COPY_NOEXEC
++#define __P011  PAGE_COPY_NOEXEC
+ #define __P100  PAGE_READONLY
+ #define __P101  PAGE_READONLY
+ #define __P110  PAGE_COPY
+ #define __P111  PAGE_COPY
+ 
+ #define __S000	PAGE_NONE
+-#define __S001	PAGE_READONLY
+-#define __S010	PAGE_SHARED
+-#define __S011	PAGE_SHARED
++#define __S001	PAGE_READONLY_NOEXEC
++#define __S010	PAGE_SHARED_NOEXEC
++#define __S011	PAGE_SHARED_NOEXEC
+ #define __S100	PAGE_READONLY
+ #define __S101	PAGE_READONLY
+ #define __S110	PAGE_SHARED
+diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
+index 79da178..c2eede8 100644
+--- a/arch/sparc/include/asm/pgtsrmmu.h
++++ b/arch/sparc/include/asm/pgtsrmmu.h
+@@ -115,6 +115,11 @@
+ 				    SRMMU_EXEC | SRMMU_REF)
+ #define SRMMU_PAGE_RDONLY  __pgprot(SRMMU_VALID | SRMMU_CACHE | \
+ 				    SRMMU_EXEC | SRMMU_REF)
++
++#define SRMMU_PAGE_SHARED_NOEXEC	__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF)
++#define SRMMU_PAGE_COPY_NOEXEC		__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
++#define SRMMU_PAGE_RDONLY_NOEXEC	__pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF)
++
+ #define SRMMU_PAGE_KERNEL  __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \
+ 				    SRMMU_DIRTY | SRMMU_REF)
+ 
+diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
+index 9689176..63c18ea 100644
+--- a/arch/sparc/include/asm/spinlock_64.h
++++ b/arch/sparc/include/asm/spinlock_64.h
+@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long fla
+ 
+ /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */
+ 
+-static void inline arch_read_lock(arch_rwlock_t *lock)
++static inline void arch_read_lock(arch_rwlock_t *lock)
+ {
+ 	unsigned long tmp1, tmp2;
+ 
+ 	__asm__ __volatile__ (
+ "1:	ldsw		[%2], %0\n"
+ "	brlz,pn		%0, 2f\n"
+-"4:	 add		%0, 1, %1\n"
++"4:	 addcc		%0, 1, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	tvs		%%icc, 6\n"
++#endif
++
+ "	cas		[%2], %0, %1\n"
+ "	cmp		%0, %1\n"
+ "	bne,pn		%%icc, 1b\n"
+@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_rwlock_t *lock)
+ "	.previous"
+ 	: "=&r" (tmp1), "=&r" (tmp2)
+ 	: "r" (lock)
+-	: "memory");
++	: "memory", "cc");
+ }
+ 
+-static int inline arch_read_trylock(arch_rwlock_t *lock)
++static inline int arch_read_trylock(arch_rwlock_t *lock)
+ {
+ 	int tmp1, tmp2;
+ 
+@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
+ "1:	ldsw		[%2], %0\n"
+ "	brlz,a,pn	%0, 2f\n"
+ "	 mov		0, %0\n"
+-"	add		%0, 1, %1\n"
++"	addcc		%0, 1, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	tvs		%%icc, 6\n"
++#endif
++
+ "	cas		[%2], %0, %1\n"
+ "	cmp		%0, %1\n"
+ "	bne,pn		%%icc, 1b\n"
+@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch_rwlock_t *lock)
+ 	return tmp1;
+ }
+ 
+-static void inline arch_read_unlock(arch_rwlock_t *lock)
++static inline void arch_read_unlock(arch_rwlock_t *lock)
+ {
+ 	unsigned long tmp1, tmp2;
+ 
+ 	__asm__ __volatile__(
+ "1:	lduw	[%2], %0\n"
+-"	sub	%0, 1, %1\n"
++"	subcc	%0, 1, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++"	tvs	%%icc, 6\n"
++#endif
++
+ "	cas	[%2], %0, %1\n"
+ "	cmp	%0, %1\n"
+ "	bne,pn	%%xcc, 1b\n"
+@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch_rwlock_t *lock)
+ 	: "memory");
+ }
+ 
+-static void inline arch_write_lock(arch_rwlock_t *lock)
++static inline void arch_write_lock(arch_rwlock_t *lock)
+ {
+ 	unsigned long mask, tmp1, tmp2;
+ 
+@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_rwlock_t *lock)
+ 	: "memory");
+ }
+ 
+-static void inline arch_write_unlock(arch_rwlock_t *lock)
++static inline void arch_write_unlock(arch_rwlock_t *lock)
+ {
+ 	__asm__ __volatile__(
+ "	stw		%%g0, [%0]"
+@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arch_rwlock_t *lock)
+ 	: "memory");
+ }
+ 
+-static int inline arch_write_trylock(arch_rwlock_t *lock)
++static inline int arch_write_trylock(arch_rwlock_t *lock)
+ {
+ 	unsigned long mask, tmp1, tmp2, result;
+ 
+diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
+index 96efa7a..16858bf 100644
+--- a/arch/sparc/include/asm/thread_info_32.h
++++ b/arch/sparc/include/asm/thread_info_32.h
+@@ -49,6 +49,8 @@ struct thread_info {
+ 	unsigned long		w_saved;
+ 
+ 	struct restart_block	restart_block;
++
++	unsigned long		lowest_stack;
+ };
+ 
+ /*
+diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
+index cc6275c..7eb8e21 100644
+--- a/arch/sparc/include/asm/thread_info_64.h
++++ b/arch/sparc/include/asm/thread_info_64.h
+@@ -63,6 +63,8 @@ struct thread_info {
+ 	struct pt_regs		*kern_una_regs;
+ 	unsigned int		kern_una_insn;
+ 
++	unsigned long		lowest_stack;
++
+ 	unsigned long		fpregs[(7 * 256) / sizeof(unsigned long)]
+ 		__attribute__ ((aligned(64)));
+ };
+@@ -190,12 +192,13 @@ register struct thread_info *current_thread_info_reg asm("g6");
+ #define TIF_NEED_RESCHED	3	/* rescheduling necessary */
+ /* flag bit 4 is available */
+ #define TIF_UNALIGNED		5	/* allowed to do unaligned accesses */
+-/* flag bit 6 is available */
++#define TIF_GRSEC_SETXID	6	/* update credentials on syscall entry/exit */
+ #define TIF_32BIT		7	/* 32-bit binary */
+ #define TIF_NOHZ		8	/* in adaptive nohz mode */
+ #define TIF_SECCOMP		9	/* secure computing */
+ #define TIF_SYSCALL_AUDIT	10	/* syscall auditing active */
+ #define TIF_SYSCALL_TRACEPOINT	11	/* syscall tracepoint instrumentation */
++
+ /* NOTE: Thread flags >= 12 should be ones we have no interest
+  *       in using in assembly, else we can't use the mask as
+  *       an immediate value in instructions such as andcc.
+@@ -215,12 +218,18 @@ register struct thread_info *current_thread_info_reg asm("g6");
+ #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
+ #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
+ #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
++#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
+ 
+ #define _TIF_USER_WORK_MASK	((0xff << TI_FLAG_WSAVED_SHIFT) | \
+ 				 _TIF_DO_NOTIFY_RESUME_MASK | \
+ 				 _TIF_NEED_RESCHED)
+ #define _TIF_DO_NOTIFY_RESUME_MASK	(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
+ 
++#define _TIF_WORK_SYSCALL		\
++	(_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
++	 _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
++
++
+ /*
+  * Thread-synchronous status.
+  *
+diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
+index 0167d26..767bb0c 100644
+--- a/arch/sparc/include/asm/uaccess.h
++++ b/arch/sparc/include/asm/uaccess.h
+@@ -1,5 +1,6 @@
+ #ifndef ___ASM_SPARC_UACCESS_H
+ #define ___ASM_SPARC_UACCESS_H
++
+ #if defined(__sparc__) && defined(__arch64__)
+ #include <asm/uaccess_64.h>
+ #else
+diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
+index 53a28dd..6e11369 100644
+--- a/arch/sparc/include/asm/uaccess_32.h
++++ b/arch/sparc/include/asm/uaccess_32.h
+@@ -47,6 +47,7 @@
+ #define __user_ok(addr, size) ({ (void)(size); (addr) < STACK_TOP; })
+ #define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
+ #define __access_ok(addr,size) (__user_ok((addr) & get_fs().seg,(size)))
++#define access_ok_noprefault(type, addr, size) access_ok((type), (addr), (size))
+ #define access_ok(type, addr, size)					\
+ 	({ (void)(type); __access_ok((unsigned long)(addr), size); })
+ 
+@@ -250,27 +251,46 @@ extern unsigned long __copy_user(void __user *to, const void __user *from, unsig
+ 
+ static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
+-	if (n && __access_ok((unsigned long) to, n))
++	if ((long)n < 0)
++		return n;
++
++	if (n && __access_ok((unsigned long) to, n)) {
++		if (!__builtin_constant_p(n))
++			check_object_size(from, n, true);
+ 		return __copy_user(to, (__force void __user *) from, n);
+-	else
++	} else
+ 		return n;
+ }
+ 
+ static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
++	if (!__builtin_constant_p(n))
++		check_object_size(from, n, true);
++
+ 	return __copy_user(to, (__force void __user *) from, n);
+ }
+ 
+ static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+-	if (n && __access_ok((unsigned long) from, n))
++	if ((long)n < 0)
++		return n;
++
++	if (n && __access_ok((unsigned long) from, n)) {
++		if (!__builtin_constant_p(n))
++			check_object_size(to, n, false);
+ 		return __copy_user((__force void __user *) to, from, n);
+-	else
++	} else
+ 		return n;
+ }
+ 
+ static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	return __copy_user((__force void __user *) to, from, n);
+ }
+ 
+diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
+index ad7e178..26cd4a7 100644
+--- a/arch/sparc/include/asm/uaccess_64.h
++++ b/arch/sparc/include/asm/uaccess_64.h
+@@ -10,6 +10,7 @@
+ #include <linux/compiler.h>
+ #include <linux/string.h>
+ #include <linux/thread_info.h>
++#include <linux/kernel.h>
+ #include <asm/asi.h>
+ #include <asm/spitfire.h>
+ #include <asm-generic/uaccess-unaligned.h>
+@@ -54,6 +55,11 @@ static inline int __access_ok(const void __user * addr, unsigned long size)
+ 	return 1;
+ }
+ 
++static inline int access_ok_noprefault(int type, const void __user * addr, unsigned long size)
++{
++	return 1;
++}
++
+ static inline int access_ok(int type, const void __user * addr, unsigned long size)
+ {
+ 	return 1;
+@@ -214,8 +220,15 @@ extern unsigned long copy_from_user_fixup(void *to, const void __user *from,
+ static inline unsigned long __must_check
+ copy_from_user(void *to, const void __user *from, unsigned long size)
+ {
+-	unsigned long ret = ___copy_from_user(to, from, size);
++	unsigned long ret;
+ 
++	if ((long)size < 0 || size > INT_MAX)
++		return size;
++
++	if (!__builtin_constant_p(size))
++		check_object_size(to, size, false);
++
++	ret = ___copy_from_user(to, from, size);
+ 	if (unlikely(ret))
+ 		ret = copy_from_user_fixup(to, from, size);
+ 
+@@ -231,8 +244,15 @@ extern unsigned long copy_to_user_fixup(void __user *to, const void *from,
+ static inline unsigned long __must_check
+ copy_to_user(void __user *to, const void *from, unsigned long size)
+ {
+-	unsigned long ret = ___copy_to_user(to, from, size);
++	unsigned long ret;
+ 
++	if ((long)size < 0 || size > INT_MAX)
++		return size;
++
++	if (!__builtin_constant_p(size))
++		check_object_size(from, size, true);
++
++	ret = ___copy_to_user(to, from, size);
+ 	if (unlikely(ret))
+ 		ret = copy_to_user_fixup(to, from, size);
+ 	return ret;
+diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
+index d15cc17..d0ae796 100644
+--- a/arch/sparc/kernel/Makefile
++++ b/arch/sparc/kernel/Makefile
+@@ -4,7 +4,7 @@
+ #
+ 
+ asflags-y := -ansi
+-ccflags-y := -Werror
++#ccflags-y := -Werror
+ 
+ extra-y     := head_$(BITS).o
+ 
+diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
+index 510baec..9ff2607 100644
+--- a/arch/sparc/kernel/process_32.c
++++ b/arch/sparc/kernel/process_32.c
+@@ -115,14 +115,14 @@ void show_regs(struct pt_regs *r)
+ 
+         printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx    %s\n",
+ 	       r->psr, r->pc, r->npc, r->y, print_tainted());
+-	printk("PC: <%pS>\n", (void *) r->pc);
++	printk("PC: <%pA>\n", (void *) r->pc);
+ 	printk("%%G: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+ 	       r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3],
+ 	       r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]);
+ 	printk("%%O: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+ 	       r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11],
+ 	       r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]);
+-	printk("RPC: <%pS>\n", (void *) r->u_regs[15]);
++	printk("RPC: <%pA>\n", (void *) r->u_regs[15]);
+ 
+ 	printk("%%L: %08lx %08lx  %08lx %08lx  %08lx %08lx  %08lx %08lx\n",
+ 	       rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3],
+@@ -159,7 +159,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
+ 		rw = (struct reg_window32 *) fp;
+ 		pc = rw->ins[7];
+ 		printk("[%08lx : ", pc);
+-		printk("%pS ] ", (void *) pc);
++		printk("%pA ] ", (void *) pc);
+ 		fp = rw->ins[6];
+ 	} while (++count < 16);
+ 	printk("\n");
+diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
+index 1a79d68..84423a6 100644
+--- a/arch/sparc/kernel/process_64.c
++++ b/arch/sparc/kernel/process_64.c
+@@ -161,7 +161,7 @@ static void show_regwindow(struct pt_regs *regs)
+ 	printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n",
+ 	       rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]);
+ 	if (regs->tstate & TSTATE_PRIV)
+-		printk("I7: <%pS>\n", (void *) rwk->ins[7]);
++		printk("I7: <%pA>\n", (void *) rwk->ins[7]);
+ }
+ 
+ void show_regs(struct pt_regs *regs)
+@@ -170,7 +170,7 @@ void show_regs(struct pt_regs *regs)
+ 
+ 	printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x    %s\n", regs->tstate,
+ 	       regs->tpc, regs->tnpc, regs->y, print_tainted());
+-	printk("TPC: <%pS>\n", (void *) regs->tpc);
++	printk("TPC: <%pA>\n", (void *) regs->tpc);
+ 	printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n",
+ 	       regs->u_regs[0], regs->u_regs[1], regs->u_regs[2],
+ 	       regs->u_regs[3]);
+@@ -183,7 +183,7 @@ void show_regs(struct pt_regs *regs)
+ 	printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n",
+ 	       regs->u_regs[12], regs->u_regs[13], regs->u_regs[14],
+ 	       regs->u_regs[15]);
+-	printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
++	printk("RPC: <%pA>\n", (void *) regs->u_regs[15]);
+ 	show_regwindow(regs);
+ 	show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
+ }
+@@ -272,7 +272,7 @@ void arch_trigger_all_cpu_backtrace(void)
+ 		       ((tp && tp->task) ? tp->task->pid : -1));
+ 
+ 		if (gp->tstate & TSTATE_PRIV) {
+-			printk("             TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n",
++			printk("             TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n",
+ 			       (void *) gp->tpc,
+ 			       (void *) gp->o7,
+ 			       (void *) gp->i7,
+diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
+index 79cc0d1..ec62734 100644
+--- a/arch/sparc/kernel/prom_common.c
++++ b/arch/sparc/kernel/prom_common.c
+@@ -144,7 +144,7 @@ static int __init prom_common_nextprop(phandle node, char *prev, char *buf)
+ 
+ unsigned int prom_early_allocated __initdata;
+ 
+-static struct of_pdt_ops prom_sparc_ops __initdata = {
++static struct of_pdt_ops prom_sparc_ops __initconst = {
+ 	.nextprop = prom_common_nextprop,
+ 	.getproplen = prom_getproplen,
+ 	.getproperty = prom_getproperty,
+diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
+index c13c9f2..d572c34 100644
+--- a/arch/sparc/kernel/ptrace_64.c
++++ b/arch/sparc/kernel/ptrace_64.c
+@@ -1060,6 +1060,10 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
+ {
+ 	int ret = 0;
+@@ -1070,6 +1074,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
+ 	if (test_thread_flag(TIF_NOHZ))
+ 		user_exit();
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (test_thread_flag(TIF_SYSCALL_TRACE))
+ 		ret = tracehook_report_syscall_entry(regs);
+ 
+@@ -1093,6 +1102,11 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
+ 	if (test_thread_flag(TIF_NOHZ))
+ 		user_exit();
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	audit_syscall_exit(regs);
+ 
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
+index 9af0a5d..06e12f4 100644
+--- a/arch/sparc/kernel/smp_64.c
++++ b/arch/sparc/kernel/smp_64.c
+@@ -874,8 +874,8 @@ extern unsigned long xcall_flush_dcache_page_cheetah;
+ extern unsigned long xcall_flush_dcache_page_spitfire;
+ 
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-extern atomic_t dcpage_flushes;
+-extern atomic_t dcpage_flushes_xcall;
++extern atomic_unchecked_t dcpage_flushes;
++extern atomic_unchecked_t dcpage_flushes_xcall;
+ #endif
+ 
+ static inline void __local_flush_dcache_page(struct page *page)
+@@ -899,7 +899,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
+ 		return;
+ 
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-	atomic_inc(&dcpage_flushes);
++	atomic_inc_unchecked(&dcpage_flushes);
+ #endif
+ 
+ 	this_cpu = get_cpu();
+@@ -923,7 +923,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
+ 			xcall_deliver(data0, __pa(pg_addr),
+ 				      (u64) pg_addr, cpumask_of(cpu));
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-			atomic_inc(&dcpage_flushes_xcall);
++			atomic_inc_unchecked(&dcpage_flushes_xcall);
+ #endif
+ 		}
+ 	}
+@@ -942,7 +942,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
+ 	preempt_disable();
+ 
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-	atomic_inc(&dcpage_flushes);
++	atomic_inc_unchecked(&dcpage_flushes);
+ #endif
+ 	data0 = 0;
+ 	pg_addr = page_address(page);
+@@ -959,7 +959,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
+ 		xcall_deliver(data0, __pa(pg_addr),
+ 			      (u64) pg_addr, cpu_online_mask);
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-		atomic_inc(&dcpage_flushes_xcall);
++		atomic_inc_unchecked(&dcpage_flushes_xcall);
+ #endif
+ 	}
+ 	__local_flush_dcache_page(page);
+diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
+index 3a8d184..49498a8 100644
+--- a/arch/sparc/kernel/sys_sparc_32.c
++++ b/arch/sparc/kernel/sys_sparc_32.c
+@@ -52,7 +52,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ 	if (len > TASK_SIZE - PAGE_SIZE)
+ 		return -ENOMEM;
+ 	if (!addr)
+-		addr = TASK_UNMAPPED_BASE;
++		addr = current->mm->mmap_base;
+ 
+ 	info.flags = 0;
+ 	info.length = len;
+diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
+index 25db14a..70162eb 100644
+--- a/arch/sparc/kernel/sys_sparc_64.c
++++ b/arch/sparc/kernel/sys_sparc_64.c
+@@ -88,13 +88,14 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ 	struct vm_area_struct * vma;
+ 	unsigned long task_size = TASK_SIZE;
+ 	int do_color_align;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	if (flags & MAP_FIXED) {
+ 		/* We do not accept a shared mapping if it would violate
+ 		 * cache aliasing constraints.
+ 		 */
+-		if ((flags & MAP_SHARED) &&
++		if ((filp || (flags & MAP_SHARED)) &&
+ 		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
+ 			return -EINVAL;
+ 		return addr;
+@@ -109,6 +110,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ 	if (filp || (flags & MAP_SHARED))
+ 		do_color_align = 1;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		if (do_color_align)
+ 			addr = COLOR_ALIGN(addr, pgoff);
+@@ -116,22 +121,28 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
+ 			addr = PAGE_ALIGN(addr);
+ 
+ 		vma = find_vma(mm, addr);
+-		if (task_size - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+ 	info.flags = 0;
+ 	info.length = len;
+-	info.low_limit = TASK_UNMAPPED_BASE;
++	info.low_limit = mm->mmap_base;
+ 	info.high_limit = min(task_size, VA_EXCLUDE_START);
+ 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.low_limit = VA_EXCLUDE_END;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap;
++#endif
++
+ 		info.high_limit = task_size;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+@@ -149,6 +160,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	unsigned long task_size = STACK_TOP32;
+ 	unsigned long addr = addr0;
+ 	int do_color_align;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	/* This should only ever run for 32-bit processes.  */
+@@ -158,7 +170,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		/* We do not accept a shared mapping if it would violate
+ 		 * cache aliasing constraints.
+ 		 */
+-		if ((flags & MAP_SHARED) &&
++		if ((filp || (flags & MAP_SHARED)) &&
+ 		    ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1)))
+ 			return -EINVAL;
+ 		return addr;
+@@ -171,6 +183,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	if (filp || (flags & MAP_SHARED))
+ 		do_color_align = 1;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	/* requesting a specific address */
+ 	if (addr) {
+ 		if (do_color_align)
+@@ -179,8 +195,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 			addr = PAGE_ALIGN(addr);
+ 
+ 		vma = find_vma(mm, addr);
+-		if (task_size - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -190,6 +205,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+@@ -202,6 +218,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.flags = 0;
+ 		info.low_limit = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap;
++#endif
++
+ 		info.high_limit = STACK_TOP32;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+@@ -258,10 +280,14 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
+ EXPORT_SYMBOL(get_fb_unmapped_area);
+ 
+ /* Essentially the same as PowerPC.  */
+-static unsigned long mmap_rnd(void)
++static unsigned long mmap_rnd(struct mm_struct *mm)
+ {
+ 	unsigned long rnd = 0UL;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (current->flags & PF_RANDOMIZE) {
+ 		unsigned long val = get_random_int();
+ 		if (test_thread_flag(TIF_32BIT))
+@@ -274,7 +300,7 @@ static unsigned long mmap_rnd(void)
+ 
+ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+-	unsigned long random_factor = mmap_rnd();
++	unsigned long random_factor = mmap_rnd(mm);
+ 	unsigned long gap;
+ 
+ 	/*
+@@ -287,6 +313,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 	    gap == RLIM_INFINITY ||
+ 	    sysctl_legacy_va_layout) {
+ 		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area;
+ 	} else {
+ 		/* We know it's 32-bit */
+@@ -298,6 +330,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
+ 			gap = (task_size / 6 * 5);
+ 
+ 		mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++#endif
++
+ 		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ 	}
+ }
+diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
+index 33a17e7..d87fb1f 100644
+--- a/arch/sparc/kernel/syscalls.S
++++ b/arch/sparc/kernel/syscalls.S
+@@ -52,7 +52,7 @@ sys32_rt_sigreturn:
+ #endif
+ 	.align	32
+ 1:	ldx	[%g6 + TI_FLAGS], %l5
+-	andcc	%l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
++	andcc	%l5, _TIF_WORK_SYSCALL, %g0
+ 	be,pt	%icc, rtrap
+ 	 nop
+ 	call	syscall_trace_leave
+@@ -184,7 +184,7 @@ linux_sparc_syscall32:
+ 
+ 	srl	%i3, 0, %o3				! IEU0
+ 	srl	%i2, 0, %o2				! IEU0	Group
+-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
++	andcc	%l0, _TIF_WORK_SYSCALL, %g0
+ 	bne,pn	%icc, linux_syscall_trace32		! CTI
+ 	 mov	%i0, %l5				! IEU1
+ 5:	call	%l7					! CTI	Group brk forced
+@@ -208,7 +208,7 @@ linux_sparc_syscall:
+ 
+ 	mov	%i3, %o3				! IEU1
+ 	mov	%i4, %o4				! IEU0	Group
+-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
++	andcc	%l0, _TIF_WORK_SYSCALL, %g0
+ 	bne,pn	%icc, linux_syscall_trace		! CTI	Group
+ 	 mov	%i0, %l5				! IEU0
+ 2:	call	%l7					! CTI	Group brk forced
+@@ -223,7 +223,7 @@ ret_sys_call:
+ 
+ 	cmp	%o0, -ERESTART_RESTARTBLOCK
+ 	bgeu,pn	%xcc, 1f
+-	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
++	 andcc	%l0, _TIF_WORK_SYSCALL, %g0
+ 	ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
+ 
+ 2:
+diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
+index 6629829..036032d 100644
+--- a/arch/sparc/kernel/traps_32.c
++++ b/arch/sparc/kernel/traps_32.c
+@@ -44,6 +44,8 @@ static void instruction_dump(unsigned long *pc)
+ #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t")
+ #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t")
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ void die_if_kernel(char *str, struct pt_regs *regs)
+ {
+ 	static int die_counter;
+@@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_regs *regs)
+ 		      count++ < 30				&&
+                       (((unsigned long) rw) >= PAGE_OFFSET)	&&
+ 		      !(((unsigned long) rw) & 0x7)) {
+-			printk("Caller[%08lx]: %pS\n", rw->ins[7],
++			printk("Caller[%08lx]: %pA\n", rw->ins[7],
+ 			       (void *) rw->ins[7]);
+ 			rw = (struct reg_window32 *)rw->ins[6];
+ 		}
+ 	}
+ 	printk("Instruction DUMP:");
+ 	instruction_dump ((unsigned long *) regs->pc);
+-	if(regs->psr & PSR_PS)
++	if(regs->psr & PSR_PS) {
++		gr_handle_kernel_exploit();
+ 		do_exit(SIGKILL);
++	}
+ 	do_exit(SIGSEGV);
+ }
+ 
+diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
+index 25d0c7e..b571456 100644
+--- a/arch/sparc/kernel/traps_64.c
++++ b/arch/sparc/kernel/traps_64.c
+@@ -77,7 +77,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p)
+ 		       i + 1,
+ 		       p->trapstack[i].tstate, p->trapstack[i].tpc,
+ 		       p->trapstack[i].tnpc, p->trapstack[i].tt);
+-		printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc);
++		printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc);
+ 	}
+ }
+ 
+@@ -97,6 +97,12 @@ void bad_trap(struct pt_regs *regs, long lvl)
+ 
+ 	lvl -= 0x100;
+ 	if (regs->tstate & TSTATE_PRIV) {
++
++#ifdef CONFIG_PAX_REFCOUNT
++		if (lvl == 6)
++			pax_report_refcount_overflow(regs);
++#endif
++
+ 		sprintf(buffer, "Kernel bad sw trap %lx", lvl);
+ 		die_if_kernel(buffer, regs);
+ 	}
+@@ -115,11 +121,16 @@ void bad_trap(struct pt_regs *regs, long lvl)
+ void bad_trap_tl1(struct pt_regs *regs, long lvl)
+ {
+ 	char buffer[32];
+-	
++
+ 	if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
+ 		       0, lvl, SIGTRAP) == NOTIFY_STOP)
+ 		return;
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++	if (lvl == 6)
++		pax_report_refcount_overflow(regs);
++#endif
++
+ 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
+ 
+ 	sprintf (buffer, "Bad trap %lx at tl>0", lvl);
+@@ -1149,7 +1160,7 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in
+ 	       regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate);
+ 	printk("%s" "ERROR(%d): ",
+ 	       (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id());
+-	printk("TPC<%pS>\n", (void *) regs->tpc);
++	printk("TPC<%pA>\n", (void *) regs->tpc);
+ 	printk("%s" "ERROR(%d): M_SYND(%lx),  E_SYND(%lx)%s%s\n",
+ 	       (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(),
+ 	       (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT,
+@@ -1756,7 +1767,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
+ 		       smp_processor_id(),
+ 		       (type & 0x1) ? 'I' : 'D',
+ 		       regs->tpc);
+-		printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc);
++		printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc);
+ 		panic("Irrecoverable Cheetah+ parity error.");
+ 	}
+ 
+@@ -1764,7 +1775,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs)
+ 	       smp_processor_id(),
+ 	       (type & 0x1) ? 'I' : 'D',
+ 	       regs->tpc);
+-	printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc);
++	printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc);
+ }
+ 
+ struct sun4v_error_entry {
+@@ -1837,8 +1848,8 @@ struct sun4v_error_entry {
+ /*0x38*/u64		reserved_5;
+ };
+ 
+-static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
+-static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
++static atomic_unchecked_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0);
++static atomic_unchecked_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0);
+ 
+ static const char *sun4v_err_type_to_str(u8 type)
+ {
+@@ -1930,7 +1941,7 @@ static void sun4v_report_real_raddr(const char *pfx, struct pt_regs *regs)
+ }
+ 
+ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
+-			    int cpu, const char *pfx, atomic_t *ocnt)
++			    int cpu, const char *pfx, atomic_unchecked_t *ocnt)
+ {
+ 	u64 *raw_ptr = (u64 *) ent;
+ 	u32 attrs;
+@@ -1988,8 +1999,8 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
+ 
+ 	show_regs(regs);
+ 
+-	if ((cnt = atomic_read(ocnt)) != 0) {
+-		atomic_set(ocnt, 0);
++	if ((cnt = atomic_read_unchecked(ocnt)) != 0) {
++		atomic_set_unchecked(ocnt, 0);
+ 		wmb();
+ 		printk("%s: Queue overflowed %d times.\n",
+ 		       pfx, cnt);
+@@ -2046,7 +2057,7 @@ out:
+  */
+ void sun4v_resum_overflow(struct pt_regs *regs)
+ {
+-	atomic_inc(&sun4v_resum_oflow_cnt);
++	atomic_inc_unchecked(&sun4v_resum_oflow_cnt);
+ }
+ 
+ /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
+@@ -2099,7 +2110,7 @@ void sun4v_nonresum_overflow(struct pt_regs *regs)
+ 	/* XXX Actually even this can make not that much sense.  Perhaps
+ 	 * XXX we should just pull the plug and panic directly from here?
+ 	 */
+-	atomic_inc(&sun4v_nonresum_oflow_cnt);
++	atomic_inc_unchecked(&sun4v_nonresum_oflow_cnt);
+ }
+ 
+ static void sun4v_tlb_error(struct pt_regs *regs)
+@@ -2118,9 +2129,9 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl)
+ 
+ 	printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n",
+ 	       regs->tpc, tl);
+-	printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc);
++	printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc);
+ 	printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
+-	printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n",
++	printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n",
+ 	       (void *) regs->u_regs[UREG_I7]);
+ 	printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] "
+ 	       "pte[%lx] error[%lx]\n",
+@@ -2141,9 +2152,9 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl)
+ 
+ 	printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n",
+ 	       regs->tpc, tl);
+-	printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc);
++	printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc);
+ 	printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]);
+-	printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n",
++	printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n",
+ 	       (void *) regs->u_regs[UREG_I7]);
+ 	printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] "
+ 	       "pte[%lx] error[%lx]\n",
+@@ -2362,13 +2373,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
+ 			fp = (unsigned long)sf->fp + STACK_BIAS;
+ 		}
+ 
+-		printk(" [%016lx] %pS\n", pc, (void *) pc);
++		printk(" [%016lx] %pA\n", pc, (void *) pc);
+ #ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ 		if ((pc + 8UL) == (unsigned long) &return_to_handler) {
+ 			int index = tsk->curr_ret_stack;
+ 			if (tsk->ret_stack && index >= graph) {
+ 				pc = tsk->ret_stack[index - graph].ret;
+-				printk(" [%016lx] %pS\n", pc, (void *) pc);
++				printk(" [%016lx] %pA\n", pc, (void *) pc);
+ 				graph++;
+ 			}
+ 		}
+@@ -2386,6 +2397,8 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
+ 	return (struct reg_window *) (fp + STACK_BIAS);
+ }
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ void die_if_kernel(char *str, struct pt_regs *regs)
+ {
+ 	static int die_counter;
+@@ -2414,7 +2427,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
+ 		while (rw &&
+ 		       count++ < 30 &&
+ 		       kstack_valid(tp, (unsigned long) rw)) {
+-			printk("Caller[%016lx]: %pS\n", rw->ins[7],
++			printk("Caller[%016lx]: %pA\n", rw->ins[7],
+ 			       (void *) rw->ins[7]);
+ 
+ 			rw = kernel_stack_up(rw);
+@@ -2427,8 +2440,10 @@ void die_if_kernel(char *str, struct pt_regs *regs)
+ 		}
+ 		user_instruction_dump ((unsigned int __user *) regs->tpc);
+ 	}
+-	if (regs->tstate & TSTATE_PRIV)
++	if (regs->tstate & TSTATE_PRIV) {
++		gr_handle_kernel_exploit();
+ 		do_exit(SIGKILL);
++	}
+ 	do_exit(SIGSEGV);
+ }
+ EXPORT_SYMBOL(die_if_kernel);
+diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
+index 35ab8b6..9046547 100644
+--- a/arch/sparc/kernel/unaligned_64.c
++++ b/arch/sparc/kernel/unaligned_64.c
+@@ -295,7 +295,7 @@ static void log_unaligned(struct pt_regs *regs)
+ 	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
+ 
+ 	if (__ratelimit(&ratelimit)) {
+-		printk("Kernel unaligned access at TPC[%lx] %pS\n",
++		printk("Kernel unaligned access at TPC[%lx] %pA\n",
+ 		       regs->tpc, (void *) regs->tpc);
+ 	}
+ }
+diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
+index dbe119b..089c7c1 100644
+--- a/arch/sparc/lib/Makefile
++++ b/arch/sparc/lib/Makefile
+@@ -2,7 +2,7 @@
+ #
+ 
+ asflags-y := -ansi -DST_DIV0=0x02
+-ccflags-y := -Werror
++#ccflags-y := -Werror
+ 
+ lib-$(CONFIG_SPARC32) += ashrdi3.o
+ lib-$(CONFIG_SPARC32) += memcpy.o memset.o
+diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
+index 85c233d..68500e0 100644
+--- a/arch/sparc/lib/atomic_64.S
++++ b/arch/sparc/lib/atomic_64.S
+@@ -17,7 +17,12 @@
+ ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	lduw	[%o1], %g1
+-	add	%g1, %o0, %g7
++	addcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%icc, 6
++#endif
++
+ 	cas	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
+@@ -27,10 +32,28 @@ ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */
+ 2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ ENDPROC(atomic_add)
+ 
++ENTRY(atomic_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
++	BACKOFF_SETUP(%o2)
++1:	lduw	[%o1], %g1
++	add	%g1, %o0, %g7
++	cas	[%o1], %g1, %g7
++	cmp	%g1, %g7
++	bne,pn	%icc, 2f
++	 nop
++	retl
++	 nop
++2:	BACKOFF_SPIN(%o2, %o3, 1b)
++ENDPROC(atomic_add_unchecked)
++
+ ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	lduw	[%o1], %g1
+-	sub	%g1, %o0, %g7
++	subcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%icc, 6
++#endif
++
+ 	cas	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
+@@ -40,10 +63,28 @@ ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */
+ 2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ ENDPROC(atomic_sub)
+ 
++ENTRY(atomic_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
++	BACKOFF_SETUP(%o2)
++1:	lduw	[%o1], %g1
++	sub	%g1, %o0, %g7
++	cas	[%o1], %g1, %g7
++	cmp	%g1, %g7
++	bne,pn	%icc, 2f
++	 nop
++	retl
++	 nop
++2:	BACKOFF_SPIN(%o2, %o3, 1b)
++ENDPROC(atomic_sub_unchecked)
++
+ ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	lduw	[%o1], %g1
+-	add	%g1, %o0, %g7
++	addcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%icc, 6
++#endif
++
+ 	cas	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
+@@ -53,10 +94,29 @@ ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
+ 2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ ENDPROC(atomic_add_ret)
+ 
++ENTRY(atomic_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
++	BACKOFF_SETUP(%o2)
++1:	lduw	[%o1], %g1
++	addcc	%g1, %o0, %g7
++	cas	[%o1], %g1, %g7
++	cmp	%g1, %g7
++	bne,pn	%icc, 2f
++	 add	%g7, %o0, %g7
++	sra	%g7, 0, %o0
++	retl
++	 nop
++2:	BACKOFF_SPIN(%o2, %o3, 1b)
++ENDPROC(atomic_add_ret_unchecked)
++
+ ENTRY(atomic_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	lduw	[%o1], %g1
+-	sub	%g1, %o0, %g7
++	subcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%icc, 6
++#endif
++
+ 	cas	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%icc, BACKOFF_LABEL(2f, 1b)
+@@ -69,7 +129,12 @@ ENDPROC(atomic_sub_ret)
+ ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	ldx	[%o1], %g1
+-	add	%g1, %o0, %g7
++	addcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%xcc, 6
++#endif
++
+ 	casx	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
+@@ -79,10 +144,28 @@ ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */
+ 2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ ENDPROC(atomic64_add)
+ 
++ENTRY(atomic64_add_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
++	BACKOFF_SETUP(%o2)
++1:	ldx	[%o1], %g1
++	addcc	%g1, %o0, %g7
++	casx	[%o1], %g1, %g7
++	cmp	%g1, %g7
++	bne,pn	%xcc, 2f
++	 nop
++	retl
++	 nop
++2:	BACKOFF_SPIN(%o2, %o3, 1b)
++ENDPROC(atomic64_add_unchecked)
++
+ ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	ldx	[%o1], %g1
+-	sub	%g1, %o0, %g7
++	subcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%xcc, 6
++#endif
++
+ 	casx	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
+@@ -92,10 +175,28 @@ ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */
+ 2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ ENDPROC(atomic64_sub)
+ 
++ENTRY(atomic64_sub_unchecked) /* %o0 = decrement, %o1 = atomic_ptr */
++	BACKOFF_SETUP(%o2)
++1:	ldx	[%o1], %g1
++	subcc	%g1, %o0, %g7
++	casx	[%o1], %g1, %g7
++	cmp	%g1, %g7
++	bne,pn	%xcc, 2f
++	 nop
++	retl
++	 nop
++2:	BACKOFF_SPIN(%o2, %o3, 1b)
++ENDPROC(atomic64_sub_unchecked)
++
+ ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	ldx	[%o1], %g1
+-	add	%g1, %o0, %g7
++	addcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%xcc, 6
++#endif
++
+ 	casx	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
+@@ -105,10 +206,29 @@ ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */
+ 2:	BACKOFF_SPIN(%o2, %o3, 1b)
+ ENDPROC(atomic64_add_ret)
+ 
++ENTRY(atomic64_add_ret_unchecked) /* %o0 = increment, %o1 = atomic_ptr */
++	BACKOFF_SETUP(%o2)
++1:	ldx	[%o1], %g1
++	addcc	%g1, %o0, %g7
++	casx	[%o1], %g1, %g7
++	cmp	%g1, %g7
++	bne,pn	%xcc, 2f
++	 add	%g7, %o0, %g7
++	mov	%g7, %o0
++	retl
++	 nop
++2:	BACKOFF_SPIN(%o2, %o3, 1b)
++ENDPROC(atomic64_add_ret_unchecked)
++
+ ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */
+ 	BACKOFF_SETUP(%o2)
+ 1:	ldx	[%o1], %g1
+-	sub	%g1, %o0, %g7
++	subcc	%g1, %o0, %g7
++
++#ifdef CONFIG_PAX_REFCOUNT
++	tvs	%xcc, 6
++#endif
++
+ 	casx	[%o1], %g1, %g7
+ 	cmp	%g1, %g7
+ 	bne,pn	%xcc, BACKOFF_LABEL(2f, 1b)
+diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
+index 323335b..ed85ea2 100644
+--- a/arch/sparc/lib/ksyms.c
++++ b/arch/sparc/lib/ksyms.c
+@@ -100,12 +100,18 @@ EXPORT_SYMBOL(__clear_user);
+ 
+ /* Atomic counter implementation. */
+ EXPORT_SYMBOL(atomic_add);
++EXPORT_SYMBOL(atomic_add_unchecked);
+ EXPORT_SYMBOL(atomic_add_ret);
++EXPORT_SYMBOL(atomic_add_ret_unchecked);
+ EXPORT_SYMBOL(atomic_sub);
++EXPORT_SYMBOL(atomic_sub_unchecked);
+ EXPORT_SYMBOL(atomic_sub_ret);
+ EXPORT_SYMBOL(atomic64_add);
++EXPORT_SYMBOL(atomic64_add_unchecked);
+ EXPORT_SYMBOL(atomic64_add_ret);
++EXPORT_SYMBOL(atomic64_add_ret_unchecked);
+ EXPORT_SYMBOL(atomic64_sub);
++EXPORT_SYMBOL(atomic64_sub_unchecked);
+ EXPORT_SYMBOL(atomic64_sub_ret);
+ EXPORT_SYMBOL(atomic64_dec_if_positive);
+ 
+diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
+index 30c3ecc..736f015 100644
+--- a/arch/sparc/mm/Makefile
++++ b/arch/sparc/mm/Makefile
+@@ -2,7 +2,7 @@
+ #
+ 
+ asflags-y := -ansi
+-ccflags-y := -Werror
++#ccflags-y := -Werror
+ 
+ obj-$(CONFIG_SPARC64)   += ultra.o tlb.o tsb.o gup.o
+ obj-y                   += fault_$(BITS).o
+diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
+index 163c787..6f9ee6c 100644
+--- a/arch/sparc/mm/fault_32.c
++++ b/arch/sparc/mm/fault_32.c
+@@ -21,6 +21,9 @@
+ #include <linux/perf_event.h>
+ #include <linux/interrupt.h>
+ #include <linux/kdebug.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/compiler.h>
+ 
+ #include <asm/page.h>
+ #include <asm/pgtable.h>
+@@ -159,6 +162,277 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
+ 	return safe_compute_effective_address(regs, insn);
+ }
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++#ifdef CONFIG_PAX_DLRESOLVE
++static void pax_emuplt_close(struct vm_area_struct *vma)
++{
++	vma->vm_mm->call_dl_resolve = 0UL;
++}
++
++static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
++{
++	unsigned int *kaddr;
++
++	vmf->page = alloc_page(GFP_HIGHUSER);
++	if (!vmf->page)
++		return VM_FAULT_OOM;
++
++	kaddr = kmap(vmf->page);
++	memset(kaddr, 0, PAGE_SIZE);
++	kaddr[0] = 0x9DE3BFA8U; /* save */
++	flush_dcache_page(vmf->page);
++	kunmap(vmf->page);
++	return VM_FAULT_MAJOR;
++}
++
++static const struct vm_operations_struct pax_vm_ops = {
++	.close = pax_emuplt_close,
++	.fault = pax_emuplt_fault
++};
++
++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
++{
++	int ret;
++
++	INIT_LIST_HEAD(&vma->anon_vma_chain);
++	vma->vm_mm = current->mm;
++	vma->vm_start = addr;
++	vma->vm_end = addr + PAGE_SIZE;
++	vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
++	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++	vma->vm_ops = &pax_vm_ops;
++
++	ret = insert_vm_struct(current->mm, vma);
++	if (ret)
++		return ret;
++
++	++current->mm->total_vm;
++	return 0;
++}
++#endif
++
++/*
++ * PaX: decide what to do with offenders (regs->pc = fault address)
++ *
++ * returns 1 when task should be killed
++ *         2 when patched PLT trampoline was detected
++ *         3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++	int err;
++
++	do { /* PaX: patched PLT emulation #1 */
++		unsigned int sethi1, sethi2, jmpl;
++
++		err = get_user(sethi1, (unsigned int *)regs->pc);
++		err |= get_user(sethi2, (unsigned int *)(regs->pc+4));
++		err |= get_user(jmpl, (unsigned int *)(regs->pc+8));
++
++		if (err)
++			break;
++
++		if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
++		    (sethi2 & 0xFFC00000U) == 0x03000000U &&
++		    (jmpl & 0xFFFFE000U) == 0x81C06000U)
++		{
++			unsigned int addr;
++
++			regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
++			addr = regs->u_regs[UREG_G1];
++			addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
++			regs->pc = addr;
++			regs->npc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #2 */
++		unsigned int ba;
++
++		err = get_user(ba, (unsigned int *)regs->pc);
++
++		if (err)
++			break;
++
++		if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
++			unsigned int addr;
++
++			if ((ba & 0xFFC00000U) == 0x30800000U)
++				addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
++			else
++				addr = regs->pc + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
++			regs->pc = addr;
++			regs->npc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #3 */
++		unsigned int sethi, bajmpl, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->pc);
++		err |= get_user(bajmpl, (unsigned int *)(regs->pc+4));
++		err |= get_user(nop, (unsigned int *)(regs->pc+8));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
++		    nop == 0x01000000U)
++		{
++			unsigned int addr;
++
++			addr = (sethi & 0x003FFFFFU) << 10;
++			regs->u_regs[UREG_G1] = addr;
++			if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
++				addr += (((bajmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
++			else
++				addr = regs->pc + ((((bajmpl | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
++			regs->pc = addr;
++			regs->npc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: unpatched PLT emulation step 1 */
++		unsigned int sethi, ba, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->pc);
++		err |= get_user(ba, (unsigned int *)(regs->pc+4));
++		err |= get_user(nop, (unsigned int *)(regs->pc+8));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
++		    nop == 0x01000000U)
++		{
++			unsigned int addr, save, call;
++
++			if ((ba & 0xFFC00000U) == 0x30800000U)
++				addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2);
++			else
++				addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2);
++
++			err = get_user(save, (unsigned int *)addr);
++			err |= get_user(call, (unsigned int *)(addr+4));
++			err |= get_user(nop, (unsigned int *)(addr+8));
++			if (err)
++				break;
++
++#ifdef CONFIG_PAX_DLRESOLVE
++			if (save == 0x9DE3BFA8U &&
++			    (call & 0xC0000000U) == 0x40000000U &&
++			    nop == 0x01000000U)
++			{
++				struct vm_area_struct *vma;
++				unsigned long call_dl_resolve;
++
++				down_read(&current->mm->mmap_sem);
++				call_dl_resolve = current->mm->call_dl_resolve;
++				up_read(&current->mm->mmap_sem);
++				if (likely(call_dl_resolve))
++					goto emulate;
++
++				vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++
++				down_write(&current->mm->mmap_sem);
++				if (current->mm->call_dl_resolve) {
++					call_dl_resolve = current->mm->call_dl_resolve;
++					up_write(&current->mm->mmap_sem);
++					if (vma)
++						kmem_cache_free(vm_area_cachep, vma);
++					goto emulate;
++				}
++
++				call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
++				if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
++					up_write(&current->mm->mmap_sem);
++					if (vma)
++						kmem_cache_free(vm_area_cachep, vma);
++					return 1;
++				}
++
++				if (pax_insert_vma(vma, call_dl_resolve)) {
++					up_write(&current->mm->mmap_sem);
++					kmem_cache_free(vm_area_cachep, vma);
++					return 1;
++				}
++
++				current->mm->call_dl_resolve = call_dl_resolve;
++				up_write(&current->mm->mmap_sem);
++
++emulate:
++				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++				regs->pc = call_dl_resolve;
++				regs->npc = addr+4;
++				return 3;
++			}
++#endif
++
++			/* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
++			if ((save & 0xFFC00000U) == 0x05000000U &&
++			    (call & 0xFFFFE000U) == 0x85C0A000U &&
++			    nop == 0x01000000U)
++			{
++				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++				regs->u_regs[UREG_G2] = addr + 4;
++				addr = (save & 0x003FFFFFU) << 10;
++				addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U);
++				regs->pc = addr;
++				regs->npc = addr+4;
++				return 3;
++			}
++		}
++	} while (0);
++
++	do { /* PaX: unpatched PLT emulation step 2 */
++		unsigned int save, call, nop;
++
++		err = get_user(save, (unsigned int *)(regs->pc-4));
++		err |= get_user(call, (unsigned int *)regs->pc);
++		err |= get_user(nop, (unsigned int *)(regs->pc+4));
++		if (err)
++			break;
++
++		if (save == 0x9DE3BFA8U &&
++		    (call & 0xC0000000U) == 0x40000000U &&
++		    nop == 0x01000000U)
++		{
++			unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2);
++
++			regs->u_regs[UREG_RETPC] = regs->pc;
++			regs->pc = dl_resolve;
++			regs->npc = dl_resolve+4;
++			return 3;
++		}
++	} while (0);
++#endif
++
++	return 1;
++}
++
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 8; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
+ 				      int text_fault)
+ {
+@@ -229,6 +503,24 @@ good_area:
+ 		if (!(vma->vm_flags & VM_WRITE))
+ 			goto bad_area;
+ 	} else {
++
++#ifdef CONFIG_PAX_PAGEEXEC
++		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) {
++			up_read(&mm->mmap_sem);
++			switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++			case 2:
++			case 3:
++				return;
++#endif
++
++			}
++			pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]);
++			do_group_exit(SIGKILL);
++		}
++#endif
++
+ 		/* Allow reads even for write-only mappings */
+ 		if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
+ 			goto bad_area;
+diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
+index 0d6de79..32851cb 100644
+--- a/arch/sparc/mm/fault_64.c
++++ b/arch/sparc/mm/fault_64.c
+@@ -22,6 +22,9 @@
+ #include <linux/kdebug.h>
+ #include <linux/percpu.h>
+ #include <linux/context_tracking.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/compiler.h>
+ 
+ #include <asm/page.h>
+ #include <asm/pgtable.h>
+@@ -75,7 +78,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
+ 	printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
+ 	       regs->tpc);
+ 	printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
+-	printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
++	printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]);
+ 	printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
+ 	dump_stack();
+ 	unhandled_fault(regs->tpc, current, regs);
+@@ -281,6 +284,466 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
+ 	show_regs(regs);
+ }
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++#ifdef CONFIG_PAX_DLRESOLVE
++static void pax_emuplt_close(struct vm_area_struct *vma)
++{
++	vma->vm_mm->call_dl_resolve = 0UL;
++}
++
++static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
++{
++	unsigned int *kaddr;
++
++	vmf->page = alloc_page(GFP_HIGHUSER);
++	if (!vmf->page)
++		return VM_FAULT_OOM;
++
++	kaddr = kmap(vmf->page);
++	memset(kaddr, 0, PAGE_SIZE);
++	kaddr[0] = 0x9DE3BFA8U; /* save */
++	flush_dcache_page(vmf->page);
++	kunmap(vmf->page);
++	return VM_FAULT_MAJOR;
++}
++
++static const struct vm_operations_struct pax_vm_ops = {
++	.close = pax_emuplt_close,
++	.fault = pax_emuplt_fault
++};
++
++static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr)
++{
++	int ret;
++
++	INIT_LIST_HEAD(&vma->anon_vma_chain);
++	vma->vm_mm = current->mm;
++	vma->vm_start = addr;
++	vma->vm_end = addr + PAGE_SIZE;
++	vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC;
++	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++	vma->vm_ops = &pax_vm_ops;
++
++	ret = insert_vm_struct(current->mm, vma);
++	if (ret)
++		return ret;
++
++	++current->mm->total_vm;
++	return 0;
++}
++#endif
++
++/*
++ * PaX: decide what to do with offenders (regs->tpc = fault address)
++ *
++ * returns 1 when task should be killed
++ *         2 when patched PLT trampoline was detected
++ *         3 when unpatched PLT trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++
++#ifdef CONFIG_PAX_EMUPLT
++	int err;
++
++	do { /* PaX: patched PLT emulation #1 */
++		unsigned int sethi1, sethi2, jmpl;
++
++		err = get_user(sethi1, (unsigned int *)regs->tpc);
++		err |= get_user(sethi2, (unsigned int *)(regs->tpc+4));
++		err |= get_user(jmpl, (unsigned int *)(regs->tpc+8));
++
++		if (err)
++			break;
++
++		if ((sethi1 & 0xFFC00000U) == 0x03000000U &&
++		    (sethi2 & 0xFFC00000U) == 0x03000000U &&
++		    (jmpl & 0xFFFFE000U) == 0x81C06000U)
++		{
++			unsigned long addr;
++
++			regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10;
++			addr = regs->u_regs[UREG_G1];
++			addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
++
++			if (test_thread_flag(TIF_32BIT))
++				addr &= 0xFFFFFFFFUL;
++
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #2 */
++		unsigned int ba;
++
++		err = get_user(ba, (unsigned int *)regs->tpc);
++
++		if (err)
++			break;
++
++		if ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30480000U) {
++			unsigned long addr;
++
++			if ((ba & 0xFFC00000U) == 0x30800000U)
++				addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
++			else
++				addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
++
++			if (test_thread_flag(TIF_32BIT))
++				addr &= 0xFFFFFFFFUL;
++
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #3 */
++		unsigned int sethi, bajmpl, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->tpc);
++		err |= get_user(bajmpl, (unsigned int *)(regs->tpc+4));
++		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    ((bajmpl & 0xFFFFE000U) == 0x81C06000U || (bajmpl & 0xFFF80000U) == 0x30480000U) &&
++		    nop == 0x01000000U)
++		{
++			unsigned long addr;
++
++			addr = (sethi & 0x003FFFFFU) << 10;
++			regs->u_regs[UREG_G1] = addr;
++			if ((bajmpl & 0xFFFFE000U) == 0x81C06000U)
++				addr += (((bajmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
++			else
++				addr = regs->tpc + ((((bajmpl | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
++
++			if (test_thread_flag(TIF_32BIT))
++				addr &= 0xFFFFFFFFUL;
++
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #4 */
++		unsigned int sethi, mov1, call, mov2;
++
++		err = get_user(sethi, (unsigned int *)regs->tpc);
++		err |= get_user(mov1, (unsigned int *)(regs->tpc+4));
++		err |= get_user(call, (unsigned int *)(regs->tpc+8));
++		err |= get_user(mov2, (unsigned int *)(regs->tpc+12));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    mov1 == 0x8210000FU &&
++		    (call & 0xC0000000U) == 0x40000000U &&
++		    mov2 == 0x9E100001U)
++		{
++			unsigned long addr;
++
++			regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC];
++			addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
++
++			if (test_thread_flag(TIF_32BIT))
++				addr &= 0xFFFFFFFFUL;
++
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #5 */
++		unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->tpc);
++		err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
++		err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
++		err |= get_user(or1, (unsigned int *)(regs->tpc+12));
++		err |= get_user(or2, (unsigned int *)(regs->tpc+16));
++		err |= get_user(sllx, (unsigned int *)(regs->tpc+20));
++		err |= get_user(jmpl, (unsigned int *)(regs->tpc+24));
++		err |= get_user(nop, (unsigned int *)(regs->tpc+28));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    (sethi1 & 0xFFC00000U) == 0x03000000U &&
++		    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
++		    (or1 & 0xFFFFE000U) == 0x82106000U &&
++		    (or2 & 0xFFFFE000U) == 0x8A116000U &&
++		    sllx == 0x83287020U &&
++		    jmpl == 0x81C04005U &&
++		    nop == 0x01000000U)
++		{
++			unsigned long addr;
++
++			regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
++			regs->u_regs[UREG_G1] <<= 32;
++			regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
++			addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: patched PLT emulation #6 */
++		unsigned int sethi, sethi1, sethi2, sllx, or,  jmpl, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->tpc);
++		err |= get_user(sethi1, (unsigned int *)(regs->tpc+4));
++		err |= get_user(sethi2, (unsigned int *)(regs->tpc+8));
++		err |= get_user(sllx, (unsigned int *)(regs->tpc+12));
++		err |= get_user(or, (unsigned int *)(regs->tpc+16));
++		err |= get_user(jmpl, (unsigned int *)(regs->tpc+20));
++		err |= get_user(nop, (unsigned int *)(regs->tpc+24));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    (sethi1 & 0xFFC00000U) == 0x03000000U &&
++		    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
++		    sllx == 0x83287020U &&
++		    (or & 0xFFFFE000U) == 0x8A116000U &&
++		    jmpl == 0x81C04005U &&
++		    nop == 0x01000000U)
++		{
++			unsigned long addr;
++
++			regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10;
++			regs->u_regs[UREG_G1] <<= 32;
++			regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU);
++			addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5];
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: unpatched PLT emulation step 1 */
++		unsigned int sethi, ba, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->tpc);
++		err |= get_user(ba, (unsigned int *)(regs->tpc+4));
++		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) &&
++		    nop == 0x01000000U)
++		{
++			unsigned long addr;
++			unsigned int save, call;
++			unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl;
++
++			if ((ba & 0xFFC00000U) == 0x30800000U)
++				addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2);
++			else
++				addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
++
++			if (test_thread_flag(TIF_32BIT))
++				addr &= 0xFFFFFFFFUL;
++
++			err = get_user(save, (unsigned int *)addr);
++			err |= get_user(call, (unsigned int *)(addr+4));
++			err |= get_user(nop, (unsigned int *)(addr+8));
++			if (err)
++				break;
++
++#ifdef CONFIG_PAX_DLRESOLVE
++			if (save == 0x9DE3BFA8U &&
++			    (call & 0xC0000000U) == 0x40000000U &&
++			    nop == 0x01000000U)
++			{
++				struct vm_area_struct *vma;
++				unsigned long call_dl_resolve;
++
++				down_read(&current->mm->mmap_sem);
++				call_dl_resolve = current->mm->call_dl_resolve;
++				up_read(&current->mm->mmap_sem);
++				if (likely(call_dl_resolve))
++					goto emulate;
++
++				vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++
++				down_write(&current->mm->mmap_sem);
++				if (current->mm->call_dl_resolve) {
++					call_dl_resolve = current->mm->call_dl_resolve;
++					up_write(&current->mm->mmap_sem);
++					if (vma)
++						kmem_cache_free(vm_area_cachep, vma);
++					goto emulate;
++				}
++
++				call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE);
++				if (!vma || (call_dl_resolve & ~PAGE_MASK)) {
++					up_write(&current->mm->mmap_sem);
++					if (vma)
++						kmem_cache_free(vm_area_cachep, vma);
++					return 1;
++				}
++
++				if (pax_insert_vma(vma, call_dl_resolve)) {
++					up_write(&current->mm->mmap_sem);
++					kmem_cache_free(vm_area_cachep, vma);
++					return 1;
++				}
++
++				current->mm->call_dl_resolve = call_dl_resolve;
++				up_write(&current->mm->mmap_sem);
++
++emulate:
++				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++				regs->tpc = call_dl_resolve;
++				regs->tnpc = addr+4;
++				return 3;
++			}
++#endif
++
++			/* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */
++			if ((save & 0xFFC00000U) == 0x05000000U &&
++			    (call & 0xFFFFE000U) == 0x85C0A000U &&
++			    nop == 0x01000000U)
++			{
++				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++				regs->u_regs[UREG_G2] = addr + 4;
++				addr = (save & 0x003FFFFFU) << 10;
++				addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL);
++
++				if (test_thread_flag(TIF_32BIT))
++					addr &= 0xFFFFFFFFUL;
++
++				regs->tpc = addr;
++				regs->tnpc = addr+4;
++				return 3;
++			}
++
++			/* PaX: 64-bit PLT stub */
++			err = get_user(sethi1, (unsigned int *)addr);
++			err |= get_user(sethi2, (unsigned int *)(addr+4));
++			err |= get_user(or1, (unsigned int *)(addr+8));
++			err |= get_user(or2, (unsigned int *)(addr+12));
++			err |= get_user(sllx, (unsigned int *)(addr+16));
++			err |= get_user(add, (unsigned int *)(addr+20));
++			err |= get_user(jmpl, (unsigned int *)(addr+24));
++			err |= get_user(nop, (unsigned int *)(addr+28));
++			if (err)
++				break;
++
++			if ((sethi1 & 0xFFC00000U) == 0x09000000U &&
++			    (sethi2 & 0xFFC00000U) == 0x0B000000U &&
++			    (or1 & 0xFFFFE000U) == 0x88112000U &&
++			    (or2 & 0xFFFFE000U) == 0x8A116000U &&
++			    sllx == 0x89293020U &&
++			    add == 0x8A010005U &&
++			    jmpl == 0x89C14000U &&
++			    nop == 0x01000000U)
++			{
++				regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10;
++				regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU);
++				regs->u_regs[UREG_G4] <<= 32;
++				regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU);
++				regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4];
++				regs->u_regs[UREG_G4] = addr + 24;
++				addr = regs->u_regs[UREG_G5];
++				regs->tpc = addr;
++				regs->tnpc = addr+4;
++				return 3;
++			}
++		}
++	} while (0);
++
++#ifdef CONFIG_PAX_DLRESOLVE
++	do { /* PaX: unpatched PLT emulation step 2 */
++		unsigned int save, call, nop;
++
++		err = get_user(save, (unsigned int *)(regs->tpc-4));
++		err |= get_user(call, (unsigned int *)regs->tpc);
++		err |= get_user(nop, (unsigned int *)(regs->tpc+4));
++		if (err)
++			break;
++
++		if (save == 0x9DE3BFA8U &&
++		    (call & 0xC0000000U) == 0x40000000U &&
++		    nop == 0x01000000U)
++		{
++			unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2);
++
++			if (test_thread_flag(TIF_32BIT))
++				dl_resolve &= 0xFFFFFFFFUL;
++
++			regs->u_regs[UREG_RETPC] = regs->tpc;
++			regs->tpc = dl_resolve;
++			regs->tnpc = dl_resolve+4;
++			return 3;
++		}
++	} while (0);
++#endif
++
++	do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */
++		unsigned int sethi, ba, nop;
++
++		err = get_user(sethi, (unsigned int *)regs->tpc);
++		err |= get_user(ba, (unsigned int *)(regs->tpc+4));
++		err |= get_user(nop, (unsigned int *)(regs->tpc+8));
++
++		if (err)
++			break;
++
++		if ((sethi & 0xFFC00000U) == 0x03000000U &&
++		    (ba & 0xFFF00000U) == 0x30600000U &&
++		    nop == 0x01000000U)
++		{
++			unsigned long addr;
++
++			addr = (sethi & 0x003FFFFFU) << 10;
++			regs->u_regs[UREG_G1] = addr;
++			addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2);
++
++			if (test_thread_flag(TIF_32BIT))
++				addr &= 0xFFFFFFFFUL;
++
++			regs->tpc = addr;
++			regs->tnpc = addr+4;
++			return 2;
++		}
++	} while (0);
++
++#endif
++
++	return 1;
++}
++
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	unsigned long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 8; i++) {
++		unsigned int c;
++		if (get_user(c, (unsigned int *)pc+i))
++			printk(KERN_CONT "???????? ");
++		else
++			printk(KERN_CONT "%08x ", c);
++	}
++	printk("\n");
++}
++#endif
++
+ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
+ {
+ 	enum ctx_state prev_state = exception_enter();
+@@ -355,6 +818,29 @@ retry:
+ 	if (!vma)
+ 		goto bad_area;
+ 
++#ifdef CONFIG_PAX_PAGEEXEC
++	/* PaX: detect ITLB misses on non-exec pages */
++	if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address &&
++	    !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB))
++	{
++		if (address != regs->tpc)
++			goto good_area;
++
++		up_read(&mm->mmap_sem);
++		switch (pax_handle_fetch_fault(regs)) {
++
++#ifdef CONFIG_PAX_EMUPLT
++		case 2:
++		case 3:
++			return;
++#endif
++
++		}
++		pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS));
++		do_group_exit(SIGKILL);
++	}
++#endif
++
+ 	/* Pure DTLB misses do not tell us whether the fault causing
+ 	 * load/store/atomic was a write or not, it only says that there
+ 	 * was no match.  So in such a case we (carefully) read the
+diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
+index d329537..2c3746a 100644
+--- a/arch/sparc/mm/hugetlbpage.c
++++ b/arch/sparc/mm/hugetlbpage.c
+@@ -25,8 +25,10 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
+ 							unsigned long addr,
+ 							unsigned long len,
+ 							unsigned long pgoff,
+-							unsigned long flags)
++							unsigned long flags,
++							unsigned long offset)
+ {
++	struct mm_struct *mm = current->mm;
+ 	unsigned long task_size = TASK_SIZE;
+ 	struct vm_unmapped_area_info info;
+ 
+@@ -35,15 +37,22 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
+ 
+ 	info.flags = 0;
+ 	info.length = len;
+-	info.low_limit = TASK_UNMAPPED_BASE;
++	info.low_limit = mm->mmap_base;
+ 	info.high_limit = min(task_size, VA_EXCLUDE_START);
+ 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.low_limit = VA_EXCLUDE_END;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap;
++#endif
++
+ 		info.high_limit = task_size;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+@@ -55,7 +64,8 @@ static unsigned long
+ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 				  const unsigned long len,
+ 				  const unsigned long pgoff,
+-				  const unsigned long flags)
++				  const unsigned long flags,
++				  const unsigned long offset)
+ {
+ 	struct mm_struct *mm = current->mm;
+ 	unsigned long addr = addr0;
+@@ -70,6 +80,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = PAGE_MASK & ~HPAGE_MASK;
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+@@ -82,6 +93,12 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.flags = 0;
+ 		info.low_limit = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap;
++#endif
++
+ 		info.high_limit = STACK_TOP32;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+@@ -96,6 +113,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_area_struct *vma;
+ 	unsigned long task_size = TASK_SIZE;
++	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
+ 
+ 	if (test_thread_flag(TIF_32BIT))
+ 		task_size = STACK_TOP32;
+@@ -111,19 +129,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+ 		return addr;
+ 	}
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		addr = ALIGN(addr, HPAGE_SIZE);
+ 		vma = find_vma(mm, addr);
+-		if (task_size - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 	if (mm->get_unmapped_area == arch_get_unmapped_area)
+ 		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
+-				pgoff, flags);
++				pgoff, flags, offset);
+ 	else
+ 		return hugetlb_get_unmapped_area_topdown(file, addr, len,
+-				pgoff, flags);
++				pgoff, flags, offset);
+ }
+ 
+ pte_t *huge_pte_alloc(struct mm_struct *mm,
+diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
+index 34506f2..0621e68 100644
+--- a/arch/sparc/mm/init_64.c
++++ b/arch/sparc/mm/init_64.c
+@@ -184,9 +184,9 @@ unsigned long sparc64_kern_sec_context __read_mostly;
+ int num_kernel_image_mappings;
+ 
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-atomic_t dcpage_flushes = ATOMIC_INIT(0);
++atomic_unchecked_t dcpage_flushes = ATOMIC_INIT(0);
+ #ifdef CONFIG_SMP
+-atomic_t dcpage_flushes_xcall = ATOMIC_INIT(0);
++atomic_unchecked_t dcpage_flushes_xcall = ATOMIC_INIT(0);
+ #endif
+ #endif
+ 
+@@ -194,7 +194,7 @@ inline void flush_dcache_page_impl(struct page *page)
+ {
+ 	BUG_ON(tlb_type == hypervisor);
+ #ifdef CONFIG_DEBUG_DCFLUSH
+-	atomic_inc(&dcpage_flushes);
++	atomic_inc_unchecked(&dcpage_flushes);
+ #endif
+ 
+ #ifdef DCACHE_ALIASING_POSSIBLE
+@@ -466,10 +466,10 @@ void mmu_info(struct seq_file *m)
+ 
+ #ifdef CONFIG_DEBUG_DCFLUSH
+ 	seq_printf(m, "DCPageFlushes\t: %d\n",
+-		   atomic_read(&dcpage_flushes));
++		   atomic_read_unchecked(&dcpage_flushes));
+ #ifdef CONFIG_SMP
+ 	seq_printf(m, "DCPageFlushesXC\t: %d\n",
+-		   atomic_read(&dcpage_flushes_xcall));
++		   atomic_read_unchecked(&dcpage_flushes_xcall));
+ #endif /* CONFIG_SMP */
+ #endif /* CONFIG_DEBUG_DCFLUSH */
+ }
+diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
+index b3692ce..e4517c9 100644
+--- a/arch/tile/Kconfig
++++ b/arch/tile/Kconfig
+@@ -184,6 +184,7 @@ source "kernel/Kconfig.hz"
+ 
+ config KEXEC
+ 	bool "kexec system call"
++	depends on !GRKERNSEC_KMEM
+ 	---help---
+ 	  kexec is a system call that implements the ability to shutdown your
+ 	  current kernel, and to start another kernel.  It is like a reboot
+diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h
+index ad220ee..2f537b3 100644
+--- a/arch/tile/include/asm/atomic_64.h
++++ b/arch/tile/include/asm/atomic_64.h
+@@ -105,6 +105,16 @@ static inline long atomic64_add_unless(atomic64_t *v, long a, long u)
+ 
+ #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
+ 
++#define atomic64_read_unchecked(v)		atomic64_read(v)
++#define atomic64_set_unchecked(v, i)		atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v)		atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v)	atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v)		atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v)		atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v)	atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v)		atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n)	atomic64_cmpxchg((v), (o), (n))
++
+ /* Atomic dec and inc don't implement barrier, so provide them if needed. */
+ #define smp_mb__before_atomic_dec()	smp_mb()
+ #define smp_mb__after_atomic_dec()	smp_mb()
+diff --git a/arch/tile/include/asm/cache.h b/arch/tile/include/asm/cache.h
+index 6160761..00cac88 100644
+--- a/arch/tile/include/asm/cache.h
++++ b/arch/tile/include/asm/cache.h
+@@ -15,11 +15,12 @@
+ #ifndef _ASM_TILE_CACHE_H
+ #define _ASM_TILE_CACHE_H
+ 
++#include <linux/const.h>
+ #include <arch/chip.h>
+ 
+ /* bytes per L1 data cache line */
+ #define L1_CACHE_SHIFT		CHIP_L1D_LOG_LINE_SIZE()
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ /* bytes per L2 cache line */
+ #define L2_CACHE_SHIFT		CHIP_L2_LOG_LINE_SIZE()
+diff --git a/arch/tile/include/asm/uaccess.h b/arch/tile/include/asm/uaccess.h
+index b6cde32..c0cb736 100644
+--- a/arch/tile/include/asm/uaccess.h
++++ b/arch/tile/include/asm/uaccess.h
+@@ -414,9 +414,9 @@ static inline unsigned long __must_check copy_from_user(void *to,
+ 					  const void __user *from,
+ 					  unsigned long n)
+ {
+-	int sz = __compiletime_object_size(to);
++	size_t sz = __compiletime_object_size(to);
+ 
+-	if (likely(sz == -1 || sz >= n))
++	if (likely(sz == (size_t)-1 || sz >= n))
+ 		n = _copy_from_user(to, from, n);
+ 	else
+ 		copy_from_user_overflow();
+diff --git a/arch/tile/mm/hugetlbpage.c b/arch/tile/mm/hugetlbpage.c
+index e514899..f8743c4 100644
+--- a/arch/tile/mm/hugetlbpage.c
++++ b/arch/tile/mm/hugetlbpage.c
+@@ -207,6 +207,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ 	info.align_offset = 0;
++	info.threadstack_offset = 0;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+@@ -224,6 +225,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+ 	info.high_limit = current->mm->mmap_base;
+ 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ 	info.align_offset = 0;
++	info.threadstack_offset = 0;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+diff --git a/arch/um/Makefile b/arch/um/Makefile
+index 36e658a..71a5c5a 100644
+--- a/arch/um/Makefile
++++ b/arch/um/Makefile
+@@ -72,6 +72,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
+ 	$(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
+ 	$(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
+ 
++ifdef CONSTIFY_PLUGIN
++USER_CFLAGS	+= -fplugin-arg-constify_plugin-no-constify
++endif
++
+ #This will adjust *FLAGS accordingly to the platform.
+ include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
+ 
+diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
+index 19e1bdd..3665b77 100644
+--- a/arch/um/include/asm/cache.h
++++ b/arch/um/include/asm/cache.h
+@@ -1,6 +1,7 @@
+ #ifndef __UM_CACHE_H
+ #define __UM_CACHE_H
+ 
++#include <linux/const.h>
+ 
+ #if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT)
+ # define L1_CACHE_SHIFT		(CONFIG_X86_L1_CACHE_SHIFT)
+@@ -12,6 +13,6 @@
+ # define L1_CACHE_SHIFT		5
+ #endif
+ 
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #endif
+diff --git a/arch/um/include/asm/kmap_types.h b/arch/um/include/asm/kmap_types.h
+index 2e0a6b1..a64d0f5 100644
+--- a/arch/um/include/asm/kmap_types.h
++++ b/arch/um/include/asm/kmap_types.h
+@@ -8,6 +8,6 @@
+ 
+ /* No more #include "asm/arch/kmap_types.h" ! */
+ 
+-#define KM_TYPE_NR 14
++#define KM_TYPE_NR 15
+ 
+ #endif
+diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
+index 5ff53d9..5850cdf 100644
+--- a/arch/um/include/asm/page.h
++++ b/arch/um/include/asm/page.h
+@@ -14,6 +14,9 @@
+ #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
+ #define PAGE_MASK	(~(PAGE_SIZE-1))
+ 
++#define ktla_ktva(addr)			(addr)
++#define ktva_ktla(addr)			(addr)
++
+ #ifndef __ASSEMBLY__
+ 
+ struct page;
+diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
+index 0032f92..cd151e0 100644
+--- a/arch/um/include/asm/pgtable-3level.h
++++ b/arch/um/include/asm/pgtable-3level.h
+@@ -58,6 +58,7 @@
+ #define pud_present(x)	(pud_val(x) & _PAGE_PRESENT)
+ #define pud_populate(mm, pud, pmd) \
+ 	set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd)))
++#define pud_populate_kernel(mm, pud, pmd) pud_populate((mm), (pud), (pmd))
+ 
+ #ifdef CONFIG_64BIT
+ #define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval))
+diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
+index eecc414..48adb87 100644
+--- a/arch/um/kernel/process.c
++++ b/arch/um/kernel/process.c
+@@ -356,22 +356,6 @@ int singlestepping(void * t)
+ 	return 2;
+ }
+ 
+-/*
+- * Only x86 and x86_64 have an arch_align_stack().
+- * All other arches have "#define arch_align_stack(x) (x)"
+- * in their asm/system.h
+- * As this is included in UML from asm-um/system-generic.h,
+- * we can use it to behave as the subarch does.
+- */
+-#ifndef arch_align_stack
+-unsigned long arch_align_stack(unsigned long sp)
+-{
+-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+-		sp -= get_random_int() % 8192;
+-	return sp & ~0xf;
+-}
+-#endif
+-
+ unsigned long get_wchan(struct task_struct *p)
+ {
+ 	unsigned long stack_page, sp, ip;
+diff --git a/arch/unicore32/include/asm/cache.h b/arch/unicore32/include/asm/cache.h
+index ad8f795..2c7eec6 100644
+--- a/arch/unicore32/include/asm/cache.h
++++ b/arch/unicore32/include/asm/cache.h
+@@ -12,8 +12,10 @@
+ #ifndef __UNICORE_CACHE_H__
+ #define __UNICORE_CACHE_H__
+ 
+-#define L1_CACHE_SHIFT		(5)
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#include <linux/const.h>
++
++#define L1_CACHE_SHIFT		5
++#define L1_CACHE_BYTES		(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ /*
+  * Memory returned by kmalloc() may be used for DMA, so we must make
+diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
+index 2f645c9..7e2933c 100644
+--- a/arch/x86/Kconfig
++++ b/arch/x86/Kconfig
+@@ -22,6 +22,7 @@ config X86_64
+ config X86
+ 	def_bool y
+ 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
++	select ARCH_HAS_FAST_MULTIPLIER
+ 	select ARCH_MIGHT_HAVE_PC_PARPORT
+ 	select ARCH_MIGHT_HAVE_PC_SERIO
+ 	select HAVE_AOUT if X86_32
+@@ -126,7 +127,7 @@ config X86
+ 	select RTC_LIB
+ 	select HAVE_DEBUG_STACKOVERFLOW
+ 	select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
+-	select HAVE_CC_STACKPROTECTOR
++	select HAVE_CC_STACKPROTECTOR if X86_64 || !PAX_MEMORY_UDEREF
+ 	select ARCH_SUPPORTS_ATOMIC_RMW
+ 
+ config INSTRUCTION_DECODER
+@@ -252,7 +253,7 @@ config X86_HT
+ 
+ config X86_32_LAZY_GS
+ 	def_bool y
+-	depends on X86_32 && !CC_STACKPROTECTOR
++	depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF
+ 
+ config ARCH_HWEIGHT_CFLAGS
+ 	string
+@@ -590,6 +591,7 @@ config SCHED_OMIT_FRAME_POINTER
+ 
+ menuconfig HYPERVISOR_GUEST
+ 	bool "Linux guest support"
++	depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_GUEST || (GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_XEN)
+ 	---help---
+ 	  Say Y here to enable options for running Linux under various hyper-
+ 	  visors. This option enables basic hypervisor detection and platform
+@@ -977,6 +979,7 @@ config VM86
+ 
+ config X86_16BIT
+ 	bool "Enable support for 16-bit segments" if EXPERT
++	depends on !GRKERNSEC
+ 	default y
+ 	---help---
+ 	  This option is required by programs like Wine to run 16-bit
+@@ -1133,7 +1136,7 @@ choice
+ 
+ config NOHIGHMEM
+ 	bool "off"
+-	depends on !X86_NUMAQ
++	depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
+ 	---help---
+ 	  Linux can use up to 64 Gigabytes of physical memory on x86 systems.
+ 	  However, the address space of 32-bit x86 processors is only 4
+@@ -1170,7 +1173,7 @@ config NOHIGHMEM
+ 
+ config HIGHMEM4G
+ 	bool "4GB"
+-	depends on !X86_NUMAQ
++	depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE)
+ 	---help---
+ 	  Select this if you have a 32-bit processor and between 1 and 4
+ 	  gigabytes of physical RAM.
+@@ -1223,7 +1226,7 @@ config PAGE_OFFSET
+ 	hex
+ 	default 0xB0000000 if VMSPLIT_3G_OPT
+ 	default 0x80000000 if VMSPLIT_2G
+-	default 0x78000000 if VMSPLIT_2G_OPT
++	default 0x70000000 if VMSPLIT_2G_OPT
+ 	default 0x40000000 if VMSPLIT_1G
+ 	default 0xC0000000
+ 	depends on X86_32
+@@ -1628,6 +1631,7 @@ source kernel/Kconfig.hz
+ 
+ config KEXEC
+ 	bool "kexec system call"
++	depends on !GRKERNSEC_KMEM
+ 	---help---
+ 	  kexec is a system call that implements the ability to shutdown your
+ 	  current kernel, and to start another kernel.  It is like a reboot
+@@ -1779,7 +1783,9 @@ config X86_NEED_RELOCS
+ 
+ config PHYSICAL_ALIGN
+ 	hex "Alignment value to which kernel should be aligned"
+-	default "0x200000"
++	default "0x1000000"
++	range 0x200000 0x1000000 if PAX_KERNEXEC && X86_PAE
++	range 0x400000 0x1000000 if PAX_KERNEXEC && !X86_PAE
+ 	range 0x2000 0x1000000 if X86_32
+ 	range 0x200000 0x1000000 if X86_64
+ 	---help---
+@@ -1859,9 +1865,10 @@ config DEBUG_HOTPLUG_CPU0
+ 	  If unsure, say N.
+ 
+ config COMPAT_VDSO
+-	def_bool y
++	def_bool n
+ 	prompt "Compat VDSO support"
+ 	depends on X86_32 || IA32_EMULATION
++	depends on !PAX_PAGEEXEC && !PAX_SEGMEXEC && !PAX_KERNEXEC && !PAX_MEMORY_UDEREF
+ 	---help---
+ 	  Map the 32-bit VDSO to the predictable old-style address too.
+ 
+diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
+index f3aaf23..a1d3c49 100644
+--- a/arch/x86/Kconfig.cpu
++++ b/arch/x86/Kconfig.cpu
+@@ -319,7 +319,7 @@ config X86_PPRO_FENCE
+ 
+ config X86_F00F_BUG
+ 	def_bool y
+-	depends on M586MMX || M586TSC || M586 || M486
++	depends on (M586MMX || M586TSC || M586 || M486) && !PAX_KERNEXEC
+ 
+ config X86_INVD_BUG
+ 	def_bool y
+@@ -327,7 +327,7 @@ config X86_INVD_BUG
+ 
+ config X86_ALIGNMENT_16
+ 	def_bool y
+-	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
++	depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+ 
+ config X86_INTEL_USERCOPY
+ 	def_bool y
+@@ -369,7 +369,7 @@ config X86_CMPXCHG64
+ # generates cmov.
+ config X86_CMOV
+ 	def_bool y
+-	depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
++	depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX)
+ 
+ config X86_MINIMUM_CPU_FAMILY
+ 	int
+diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
+index 321a52c..3d51a5e 100644
+--- a/arch/x86/Kconfig.debug
++++ b/arch/x86/Kconfig.debug
+@@ -84,7 +84,7 @@ config X86_PTDUMP
+ config DEBUG_RODATA
+ 	bool "Write protect kernel read-only data structures"
+ 	default y
+-	depends on DEBUG_KERNEL
++	depends on DEBUG_KERNEL && BROKEN
+ 	---help---
+ 	  Mark the kernel read-only data as write-protected in the pagetables,
+ 	  in order to catch accidental (and incorrect) writes to such const
+@@ -102,7 +102,7 @@ config DEBUG_RODATA_TEST
+ 
+ config DEBUG_SET_MODULE_RONX
+ 	bool "Set loadable kernel module data as NX and text as RO"
+-	depends on MODULES
++	depends on MODULES && BROKEN
+ 	---help---
+ 	  This option helps catch unintended modifications to loadable
+ 	  kernel module's text and read-only data. It also prevents execution
+diff --git a/arch/x86/Makefile b/arch/x86/Makefile
+index 0dd99ea..4a63d82 100644
+--- a/arch/x86/Makefile
++++ b/arch/x86/Makefile
+@@ -71,9 +71,6 @@ ifeq ($(CONFIG_X86_32),y)
+         # CPU-specific tuning. Anything which can be shared with UML should go here.
+         include $(srctree)/arch/x86/Makefile_32.cpu
+         KBUILD_CFLAGS += $(cflags-y)
+-
+-        # temporary until string.h is fixed
+-        KBUILD_CFLAGS += -ffreestanding
+ else
+         BITS := 64
+         UTS_MACHINE := x86_64
+@@ -112,6 +109,9 @@ else
+         KBUILD_CFLAGS += -maccumulate-outgoing-args
+ endif
+ 
++# temporary until string.h is fixed
++KBUILD_CFLAGS += -ffreestanding
++
+ # Make sure compiler does not have buggy stack-protector support.
+ ifdef CONFIG_CC_STACKPROTECTOR
+ 	cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
+@@ -269,3 +269,12 @@ define archhelp
+   echo  '                  FDINITRD=file initrd for the booted kernel'
+   echo  '  kvmconfig	- Enable additional options for guest kernel support'
+ endef
++
++define OLD_LD
++
++*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils.
++*** Please upgrade your binutils to 2.18 or newer
++endef
++
++archprepare:
++	$(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD)))
+diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
+index 878df7e..a803913 100644
+--- a/arch/x86/boot/Makefile
++++ b/arch/x86/boot/Makefile
+@@ -52,6 +52,9 @@ $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
+ # ---------------------------------------------------------------------------
+ 
+ KBUILD_CFLAGS	:= $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
++ifdef CONSTIFY_PLUGIN
++KBUILD_CFLAGS	+= -fplugin-arg-constify_plugin-no-constify
++endif
+ KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
+ GCOV_PROFILE := n
+ 
+diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
+index 878e4b9..20537ab 100644
+--- a/arch/x86/boot/bitops.h
++++ b/arch/x86/boot/bitops.h
+@@ -26,7 +26,7 @@ static inline int variable_test_bit(int nr, const void *addr)
+ 	u8 v;
+ 	const u32 *p = (const u32 *)addr;
+ 
+-	asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
++	asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
+ 	return v;
+ }
+ 
+@@ -37,7 +37,7 @@ static inline int variable_test_bit(int nr, const void *addr)
+ 
+ static inline void set_bit(int nr, void *addr)
+ {
+-	asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
++	asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
+ }
+ 
+ #endif /* BOOT_BITOPS_H */
+diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
+index 50f8c5e..4f84fff 100644
+--- a/arch/x86/boot/boot.h
++++ b/arch/x86/boot/boot.h
+@@ -84,7 +84,7 @@ static inline void io_delay(void)
+ static inline u16 ds(void)
+ {
+ 	u16 seg;
+-	asm("movw %%ds,%0" : "=rm" (seg));
++	asm volatile("movw %%ds,%0" : "=rm" (seg));
+ 	return seg;
+ }
+ 
+@@ -180,7 +180,7 @@ static inline void wrgs32(u32 v, addr_t addr)
+ static inline int memcmp(const void *s1, const void *s2, size_t len)
+ {
+ 	u8 diff;
+-	asm("repe; cmpsb; setnz %0"
++	asm volatile("repe; cmpsb; setnz %0"
+ 	    : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
+ 	return diff;
+ }
+diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
+index 67e9f5c..2af15db 100644
+--- a/arch/x86/boot/compressed/Makefile
++++ b/arch/x86/boot/compressed/Makefile
+@@ -16,6 +16,9 @@ KBUILD_CFLAGS += $(cflags-y)
+ KBUILD_CFLAGS += -mno-mmx -mno-sse
+ KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
+ KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
++ifdef CONSTIFY_PLUGIN
++KBUILD_CFLAGS += -fplugin-arg-constify_plugin-no-constify
++endif
+ 
+ KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+ GCOV_PROFILE := n
+diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
+index a53440e..c3dbf1e 100644
+--- a/arch/x86/boot/compressed/efi_stub_32.S
++++ b/arch/x86/boot/compressed/efi_stub_32.S
+@@ -46,16 +46,13 @@ ENTRY(efi_call_phys)
+ 	 * parameter 2, ..., param n. To make things easy, we save the return
+ 	 * address of efi_call_phys in a global variable.
+ 	 */
+-	popl	%ecx
+-	movl	%ecx, saved_return_addr(%edx)
+-	/* get the function pointer into ECX*/
+-	popl	%ecx
+-	movl	%ecx, efi_rt_function_ptr(%edx)
++	popl	saved_return_addr(%edx)
++	popl	efi_rt_function_ptr(%edx)
+ 
+ 	/*
+ 	 * 3. Call the physical function.
+ 	 */
+-	call	*%ecx
++	call	*efi_rt_function_ptr(%edx)
+ 
+ 	/*
+ 	 * 4. Balance the stack. And because EAX contain the return value,
+@@ -67,15 +64,12 @@ ENTRY(efi_call_phys)
+ 1:	popl	%edx
+ 	subl	$1b, %edx
+ 
+-	movl	efi_rt_function_ptr(%edx), %ecx
+-	pushl	%ecx
++	pushl	efi_rt_function_ptr(%edx)
+ 
+ 	/*
+ 	 * 10. Push the saved return address onto the stack and return.
+ 	 */
+-	movl	saved_return_addr(%edx), %ecx
+-	pushl	%ecx
+-	ret
++	jmpl	*saved_return_addr(%edx)
+ ENDPROC(efi_call_phys)
+ .previous
+ 
+diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
+index c5b56ed..9f79ed3 100644
+--- a/arch/x86/boot/compressed/head_32.S
++++ b/arch/x86/boot/compressed/head_32.S
+@@ -119,10 +119,10 @@ preferred_addr:
+ 	addl    %eax, %ebx
+ 	notl	%eax
+ 	andl    %eax, %ebx
+-	cmpl	$LOAD_PHYSICAL_ADDR, %ebx
++	cmpl	$____LOAD_PHYSICAL_ADDR, %ebx
+ 	jge	1f
+ #endif
+-	movl	$LOAD_PHYSICAL_ADDR, %ebx
++	movl	$____LOAD_PHYSICAL_ADDR, %ebx
+ 1:
+ 
+ 	/* Target address to relocate to for decompression */
+diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
+index 34bbc09..c126b87 100644
+--- a/arch/x86/boot/compressed/head_64.S
++++ b/arch/x86/boot/compressed/head_64.S
+@@ -94,10 +94,10 @@ ENTRY(startup_32)
+ 	addl	%eax, %ebx
+ 	notl	%eax
+ 	andl	%eax, %ebx
+-	cmpl	$LOAD_PHYSICAL_ADDR, %ebx
++	cmpl	$____LOAD_PHYSICAL_ADDR, %ebx
+ 	jge	1f
+ #endif
+-	movl	$LOAD_PHYSICAL_ADDR, %ebx
++	movl	$____LOAD_PHYSICAL_ADDR, %ebx
+ 1:
+ 
+ 	/* Target address to relocate to for decompression */
+@@ -268,10 +268,10 @@ preferred_addr:
+ 	addq	%rax, %rbp
+ 	notq	%rax
+ 	andq	%rax, %rbp
+-	cmpq	$LOAD_PHYSICAL_ADDR, %rbp
++	cmpq	$____LOAD_PHYSICAL_ADDR, %rbp
+ 	jge	1f
+ #endif
+-	movq	$LOAD_PHYSICAL_ADDR, %rbp
++	movq	$____LOAD_PHYSICAL_ADDR, %rbp
+ 1:
+ 
+ 	/* Target address to relocate to for decompression */
+@@ -366,8 +366,8 @@ gdt:
+ 	.long	gdt
+ 	.word	0
+ 	.quad	0x0000000000000000	/* NULL descriptor */
+-	.quad	0x00af9a000000ffff	/* __KERNEL_CS */
+-	.quad	0x00cf92000000ffff	/* __KERNEL_DS */
++	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
++	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
+ 	.quad	0x0080890000000000	/* TS descriptor */
+ 	.quad   0x0000000000000000	/* TS continued */
+ gdt_end:
+diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
+index 8f45c85..fc8346a 100644
+--- a/arch/x86/boot/compressed/misc.c
++++ b/arch/x86/boot/compressed/misc.c
+@@ -218,7 +218,7 @@ void __putstr(const char *s)
+ 
+ void *memset(void *s, int c, size_t n)
+ {
+-	int i;
++	size_t i;
+ 	char *ss = s;
+ 
+ 	for (i = 0; i < n; i++)
+@@ -277,7 +277,7 @@ static void handle_relocations(void *output, unsigned long output_len)
+ 	 * Calculate the delta between where vmlinux was linked to load
+ 	 * and where it was actually loaded.
+ 	 */
+-	delta = min_addr - LOAD_PHYSICAL_ADDR;
++	delta = min_addr - ____LOAD_PHYSICAL_ADDR;
+ 	if (!delta) {
+ 		debug_putstr("No relocation needed... ");
+ 		return;
+@@ -347,7 +347,7 @@ static void parse_elf(void *output)
+ 	Elf32_Ehdr ehdr;
+ 	Elf32_Phdr *phdrs, *phdr;
+ #endif
+-	void *dest;
++	void *dest, *prev;
+ 	int i;
+ 
+ 	memcpy(&ehdr, output, sizeof(ehdr));
+@@ -374,13 +374,16 @@ static void parse_elf(void *output)
+ 		case PT_LOAD:
+ #ifdef CONFIG_RELOCATABLE
+ 			dest = output;
+-			dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
++			dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR);
+ #else
+ 			dest = (void *)(phdr->p_paddr);
+ #endif
+ 			memcpy(dest,
+ 			       output + phdr->p_offset,
+ 			       phdr->p_filesz);
++			if (i)
++				memset(prev, 0xff, dest - prev);
++			prev = dest + phdr->p_filesz;
+ 			break;
+ 		default: /* Ignore other PT_* */ break;
+ 		}
+@@ -439,7 +442,7 @@ asmlinkage void *decompress_kernel(void *rmode, memptr heap,
+ 		error("Destination address too large");
+ #endif
+ #ifndef CONFIG_RELOCATABLE
+-	if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
++	if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR)
+ 		error("Wrong destination address");
+ #endif
+ 
+diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
+index 100a9a1..bb3bdb0 100644
+--- a/arch/x86/boot/cpucheck.c
++++ b/arch/x86/boot/cpucheck.c
+@@ -117,9 +117,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
+ 		u32 ecx = MSR_K7_HWCR;
+ 		u32 eax, edx;
+ 
+-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
++		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+ 		eax &= ~(1 << 15);
+-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
++		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+ 
+ 		get_cpuflags();	/* Make sure it really did something */
+ 		err = check_cpuflags();
+@@ -132,9 +132,9 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
+ 		u32 ecx = MSR_VIA_FCR;
+ 		u32 eax, edx;
+ 
+-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
++		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+ 		eax |= (1<<1)|(1<<7);
+-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
++		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+ 
+ 		set_bit(X86_FEATURE_CX8, cpu.flags);
+ 		err = check_cpuflags();
+@@ -145,12 +145,12 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
+ 		u32 eax, edx;
+ 		u32 level = 1;
+ 
+-		asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
+-		asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
+-		asm("cpuid"
++		asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
++		asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
++		asm volatile("cpuid"
+ 		    : "+a" (level), "=d" (cpu.flags[0])
+ 		    : : "ecx", "ebx");
+-		asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
++		asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+ 
+ 		err = check_cpuflags();
+ 	}
+diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
+index 04da6c2..a151f55 100644
+--- a/arch/x86/boot/header.S
++++ b/arch/x86/boot/header.S
+@@ -434,10 +434,14 @@ setup_data:		.quad 0			# 64-bit physical pointer to
+ 						# single linked list of
+ 						# struct setup_data
+ 
+-pref_address:		.quad LOAD_PHYSICAL_ADDR	# preferred load addr
++pref_address:		.quad ____LOAD_PHYSICAL_ADDR	# preferred load addr
+ 
+ #define ZO_INIT_SIZE	(ZO__end - ZO_startup_32 + ZO_z_extract_offset)
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++#define VO_INIT_SIZE	(VO__end - VO__text - __PAGE_OFFSET - ____LOAD_PHYSICAL_ADDR)
++#else
+ #define VO_INIT_SIZE	(VO__end - VO__text)
++#endif
+ #if ZO_INIT_SIZE > VO_INIT_SIZE
+ #define INIT_SIZE ZO_INIT_SIZE
+ #else
+diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
+index db75d07..8e6d0af 100644
+--- a/arch/x86/boot/memory.c
++++ b/arch/x86/boot/memory.c
+@@ -19,7 +19,7 @@
+ 
+ static int detect_memory_e820(void)
+ {
+-	int count = 0;
++	unsigned int count = 0;
+ 	struct biosregs ireg, oreg;
+ 	struct e820entry *desc = boot_params.e820_map;
+ 	static struct e820entry buf; /* static so it is zeroed */
+diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
+index 11e8c6e..fdbb1ed 100644
+--- a/arch/x86/boot/video-vesa.c
++++ b/arch/x86/boot/video-vesa.c
+@@ -200,6 +200,7 @@ static void vesa_store_pm_info(void)
+ 
+ 	boot_params.screen_info.vesapm_seg = oreg.es;
+ 	boot_params.screen_info.vesapm_off = oreg.di;
++	boot_params.screen_info.vesapm_size = oreg.cx;
+ }
+ 
+ /*
+diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
+index 43eda28..5ab5fdb 100644
+--- a/arch/x86/boot/video.c
++++ b/arch/x86/boot/video.c
+@@ -96,7 +96,7 @@ static void store_mode_params(void)
+ static unsigned int get_entry(void)
+ {
+ 	char entry_buf[4];
+-	int i, len = 0;
++	unsigned int i, len = 0;
+ 	int key;
+ 	unsigned int v;
+ 
+diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
+index 9105655..41779c1 100644
+--- a/arch/x86/crypto/aes-x86_64-asm_64.S
++++ b/arch/x86/crypto/aes-x86_64-asm_64.S
+@@ -8,6 +8,8 @@
+  * including this sentence is retained in full.
+  */
+ 
++#include <asm/alternative-asm.h>
++
+ .extern crypto_ft_tab
+ .extern crypto_it_tab
+ .extern crypto_fl_tab
+@@ -70,6 +72,8 @@
+ 	je	B192;			\
+ 	leaq	32(r9),r9;
+ 
++#define ret	pax_force_retaddr; ret
++
+ #define epilogue(FUNC,r1,r2,r3,r4,r5,r6,r7,r8,r9) \
+ 	movq	r1,r2;			\
+ 	movq	r3,r4;			\
+diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
+index 477e9d7..c92c7d8 100644
+--- a/arch/x86/crypto/aesni-intel_asm.S
++++ b/arch/x86/crypto/aesni-intel_asm.S
+@@ -31,6 +31,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <asm/inst.h>
++#include <asm/alternative-asm.h>
+ 
+ #ifdef __x86_64__
+ .data
+@@ -205,7 +206,7 @@ enc:        .octa 0x2
+ * num_initial_blocks = b mod 4
+ * encrypt the initial num_initial_blocks blocks and apply ghash on
+ * the ciphertext
+-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
++* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
+ * are clobbered
+ * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
+ */
+@@ -214,8 +215,8 @@ enc:        .octa 0x2
+ .macro INITIAL_BLOCKS_DEC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
+ XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
+ 	mov	   arg7, %r10           # %r10 = AAD
+-	mov	   arg8, %r12           # %r12 = aadLen
+-	mov	   %r12, %r11
++	mov	   arg8, %r15           # %r15 = aadLen
++	mov	   %r15, %r11
+ 	pxor	   %xmm\i, %xmm\i
+ _get_AAD_loop\num_initial_blocks\operation:
+ 	movd	   (%r10), \TMP1
+@@ -223,15 +224,15 @@ _get_AAD_loop\num_initial_blocks\operation:
+ 	psrldq	   $4, %xmm\i
+ 	pxor	   \TMP1, %xmm\i
+ 	add	   $4, %r10
+-	sub	   $4, %r12
++	sub	   $4, %r15
+ 	jne	   _get_AAD_loop\num_initial_blocks\operation
+ 	cmp	   $16, %r11
+ 	je	   _get_AAD_loop2_done\num_initial_blocks\operation
+-	mov	   $16, %r12
++	mov	   $16, %r15
+ _get_AAD_loop2\num_initial_blocks\operation:
+ 	psrldq	   $4, %xmm\i
+-	sub	   $4, %r12
+-	cmp	   %r11, %r12
++	sub	   $4, %r15
++	cmp	   %r11, %r15
+ 	jne	   _get_AAD_loop2\num_initial_blocks\operation
+ _get_AAD_loop2_done\num_initial_blocks\operation:
+         movdqa     SHUF_MASK(%rip), %xmm14
+@@ -443,7 +444,7 @@ _initial_blocks_done\num_initial_blocks\operation:
+ * num_initial_blocks = b mod 4
+ * encrypt the initial num_initial_blocks blocks and apply ghash on
+ * the ciphertext
+-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
++* %r10, %r11, %r15, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
+ * are clobbered
+ * arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
+ */
+@@ -452,8 +453,8 @@ _initial_blocks_done\num_initial_blocks\operation:
+ .macro INITIAL_BLOCKS_ENC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
+ XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
+ 	mov	   arg7, %r10           # %r10 = AAD
+-	mov	   arg8, %r12           # %r12 = aadLen
+-	mov	   %r12, %r11
++	mov	   arg8, %r15           # %r15 = aadLen
++	mov	   %r15, %r11
+ 	pxor	   %xmm\i, %xmm\i
+ _get_AAD_loop\num_initial_blocks\operation:
+ 	movd	   (%r10), \TMP1
+@@ -461,15 +462,15 @@ _get_AAD_loop\num_initial_blocks\operation:
+ 	psrldq	   $4, %xmm\i
+ 	pxor	   \TMP1, %xmm\i
+ 	add	   $4, %r10
+-	sub	   $4, %r12
++	sub	   $4, %r15
+ 	jne	   _get_AAD_loop\num_initial_blocks\operation
+ 	cmp	   $16, %r11
+ 	je	   _get_AAD_loop2_done\num_initial_blocks\operation
+-	mov	   $16, %r12
++	mov	   $16, %r15
+ _get_AAD_loop2\num_initial_blocks\operation:
+ 	psrldq	   $4, %xmm\i
+-	sub	   $4, %r12
+-	cmp	   %r11, %r12
++	sub	   $4, %r15
++	cmp	   %r11, %r15
+ 	jne	   _get_AAD_loop2\num_initial_blocks\operation
+ _get_AAD_loop2_done\num_initial_blocks\operation:
+         movdqa     SHUF_MASK(%rip), %xmm14
+@@ -1269,7 +1270,7 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
+ *
+ *****************************************************************************/
+ ENTRY(aesni_gcm_dec)
+-	push	%r12
++	push	%r15
+ 	push	%r13
+ 	push	%r14
+ 	mov	%rsp, %r14
+@@ -1279,8 +1280,8 @@ ENTRY(aesni_gcm_dec)
+ */
+ 	sub	$VARIABLE_OFFSET, %rsp
+ 	and	$~63, %rsp                        # align rsp to 64 bytes
+-	mov	%arg6, %r12
+-	movdqu	(%r12), %xmm13			  # %xmm13 = HashKey
++	mov	%arg6, %r15
++	movdqu	(%r15), %xmm13			  # %xmm13 = HashKey
+         movdqa  SHUF_MASK(%rip), %xmm2
+ 	PSHUFB_XMM %xmm2, %xmm13
+ 
+@@ -1308,10 +1309,10 @@ ENTRY(aesni_gcm_dec)
+ 	movdqa %xmm13, HashKey(%rsp)           # store HashKey<<1 (mod poly)
+ 	mov %arg4, %r13    # save the number of bytes of plaintext/ciphertext
+ 	and $-16, %r13                      # %r13 = %r13 - (%r13 mod 16)
+-	mov %r13, %r12
+-	and $(3<<4), %r12
++	mov %r13, %r15
++	and $(3<<4), %r15
+ 	jz _initial_num_blocks_is_0_decrypt
+-	cmp $(2<<4), %r12
++	cmp $(2<<4), %r15
+ 	jb _initial_num_blocks_is_1_decrypt
+ 	je _initial_num_blocks_is_2_decrypt
+ _initial_num_blocks_is_3_decrypt:
+@@ -1361,16 +1362,16 @@ _zero_cipher_left_decrypt:
+ 	sub $16, %r11
+ 	add %r13, %r11
+ 	movdqu (%arg3,%r11,1), %xmm1   # receive the last <16 byte block
+-	lea SHIFT_MASK+16(%rip), %r12
+-	sub %r13, %r12
++	lea SHIFT_MASK+16(%rip), %r15
++	sub %r13, %r15
+ # adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
+ # (%r13 is the number of bytes in plaintext mod 16)
+-	movdqu (%r12), %xmm2           # get the appropriate shuffle mask
++	movdqu (%r15), %xmm2           # get the appropriate shuffle mask
+ 	PSHUFB_XMM %xmm2, %xmm1            # right shift 16-%r13 butes
+ 
+ 	movdqa  %xmm1, %xmm2
+ 	pxor %xmm1, %xmm0            # Ciphertext XOR E(K, Yn)
+-	movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
++	movdqu ALL_F-SHIFT_MASK(%r15), %xmm1
+ 	# get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
+ 	pand %xmm1, %xmm0            # mask out top 16-%r13 bytes of %xmm0
+ 	pand    %xmm1, %xmm2
+@@ -1399,9 +1400,9 @@ _less_than_8_bytes_left_decrypt:
+ 	sub	$1, %r13
+ 	jne	_less_than_8_bytes_left_decrypt
+ _multiple_of_16_bytes_decrypt:
+-	mov	arg8, %r12		  # %r13 = aadLen (number of bytes)
+-	shl	$3, %r12		  # convert into number of bits
+-	movd	%r12d, %xmm15		  # len(A) in %xmm15
++	mov	arg8, %r15		  # %r13 = aadLen (number of bytes)
++	shl	$3, %r15		  # convert into number of bits
++	movd	%r15d, %xmm15		  # len(A) in %xmm15
+ 	shl	$3, %arg4		  # len(C) in bits (*128)
+ 	MOVQ_R64_XMM	%arg4, %xmm1
+ 	pslldq	$8, %xmm15		  # %xmm15 = len(A)||0x0000000000000000
+@@ -1440,7 +1441,8 @@ _return_T_done_decrypt:
+ 	mov	%r14, %rsp
+ 	pop	%r14
+ 	pop	%r13
+-	pop	%r12
++	pop	%r15
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_gcm_dec)
+ 
+@@ -1529,7 +1531,7 @@ ENDPROC(aesni_gcm_dec)
+ * poly = x^128 + x^127 + x^126 + x^121 + 1
+ ***************************************************************************/
+ ENTRY(aesni_gcm_enc)
+-	push	%r12
++	push	%r15
+ 	push	%r13
+ 	push	%r14
+ 	mov	%rsp, %r14
+@@ -1539,8 +1541,8 @@ ENTRY(aesni_gcm_enc)
+ #
+ 	sub	$VARIABLE_OFFSET, %rsp
+ 	and	$~63, %rsp
+-	mov	%arg6, %r12
+-	movdqu	(%r12), %xmm13
++	mov	%arg6, %r15
++	movdqu	(%r15), %xmm13
+         movdqa  SHUF_MASK(%rip), %xmm2
+ 	PSHUFB_XMM %xmm2, %xmm13
+ 
+@@ -1564,13 +1566,13 @@ ENTRY(aesni_gcm_enc)
+ 	movdqa	%xmm13, HashKey(%rsp)
+ 	mov	%arg4, %r13            # %xmm13 holds HashKey<<1 (mod poly)
+ 	and	$-16, %r13
+-	mov	%r13, %r12
++	mov	%r13, %r15
+ 
+         # Encrypt first few blocks
+ 
+-	and	$(3<<4), %r12
++	and	$(3<<4), %r15
+ 	jz	_initial_num_blocks_is_0_encrypt
+-	cmp	$(2<<4), %r12
++	cmp	$(2<<4), %r15
+ 	jb	_initial_num_blocks_is_1_encrypt
+ 	je	_initial_num_blocks_is_2_encrypt
+ _initial_num_blocks_is_3_encrypt:
+@@ -1623,14 +1625,14 @@ _zero_cipher_left_encrypt:
+ 	sub $16, %r11
+ 	add %r13, %r11
+ 	movdqu (%arg3,%r11,1), %xmm1     # receive the last <16 byte blocks
+-	lea SHIFT_MASK+16(%rip), %r12
+-	sub %r13, %r12
++	lea SHIFT_MASK+16(%rip), %r15
++	sub %r13, %r15
+ 	# adjust the shuffle mask pointer to be able to shift 16-r13 bytes
+ 	# (%r13 is the number of bytes in plaintext mod 16)
+-	movdqu	(%r12), %xmm2           # get the appropriate shuffle mask
++	movdqu	(%r15), %xmm2           # get the appropriate shuffle mask
+ 	PSHUFB_XMM	%xmm2, %xmm1            # shift right 16-r13 byte
+ 	pxor	%xmm1, %xmm0            # Plaintext XOR Encrypt(K, Yn)
+-	movdqu	ALL_F-SHIFT_MASK(%r12), %xmm1
++	movdqu	ALL_F-SHIFT_MASK(%r15), %xmm1
+ 	# get the appropriate mask to mask out top 16-r13 bytes of xmm0
+ 	pand	%xmm1, %xmm0            # mask out top 16-r13 bytes of xmm0
+         movdqa SHUF_MASK(%rip), %xmm10
+@@ -1663,9 +1665,9 @@ _less_than_8_bytes_left_encrypt:
+ 	sub $1, %r13
+ 	jne _less_than_8_bytes_left_encrypt
+ _multiple_of_16_bytes_encrypt:
+-	mov	arg8, %r12    # %r12 = addLen (number of bytes)
+-	shl	$3, %r12
+-	movd	%r12d, %xmm15       # len(A) in %xmm15
++	mov	arg8, %r15    # %r15 = addLen (number of bytes)
++	shl	$3, %r15
++	movd	%r15d, %xmm15       # len(A) in %xmm15
+ 	shl	$3, %arg4               # len(C) in bits (*128)
+ 	MOVQ_R64_XMM	%arg4, %xmm1
+ 	pslldq	$8, %xmm15          # %xmm15 = len(A)||0x0000000000000000
+@@ -1704,7 +1706,8 @@ _return_T_done_encrypt:
+ 	mov	%r14, %rsp
+ 	pop	%r14
+ 	pop	%r13
+-	pop	%r12
++	pop	%r15
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_gcm_enc)
+ 
+@@ -1722,6 +1725,7 @@ _key_expansion_256a:
+ 	pxor %xmm1, %xmm0
+ 	movaps %xmm0, (TKEYP)
+ 	add $0x10, TKEYP
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_key_expansion_128)
+ ENDPROC(_key_expansion_256a)
+@@ -1748,6 +1752,7 @@ _key_expansion_192a:
+ 	shufps $0b01001110, %xmm2, %xmm1
+ 	movaps %xmm1, 0x10(TKEYP)
+ 	add $0x20, TKEYP
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_key_expansion_192a)
+ 
+@@ -1768,6 +1773,7 @@ _key_expansion_192b:
+ 
+ 	movaps %xmm0, (TKEYP)
+ 	add $0x10, TKEYP
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_key_expansion_192b)
+ 
+@@ -1781,6 +1787,7 @@ _key_expansion_256b:
+ 	pxor %xmm1, %xmm2
+ 	movaps %xmm2, (TKEYP)
+ 	add $0x10, TKEYP
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_key_expansion_256b)
+ 
+@@ -1894,6 +1901,7 @@ ENTRY(aesni_set_key)
+ #ifndef __x86_64__
+ 	popl KEYP
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_set_key)
+ 
+@@ -1916,6 +1924,7 @@ ENTRY(aesni_enc)
+ 	popl KLEN
+ 	popl KEYP
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_enc)
+ 
+@@ -1974,6 +1983,7 @@ _aesni_enc1:
+ 	AESENC KEY STATE
+ 	movaps 0x70(TKEYP), KEY
+ 	AESENCLAST KEY STATE
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_aesni_enc1)
+ 
+@@ -2083,6 +2093,7 @@ _aesni_enc4:
+ 	AESENCLAST KEY STATE2
+ 	AESENCLAST KEY STATE3
+ 	AESENCLAST KEY STATE4
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_aesni_enc4)
+ 
+@@ -2106,6 +2117,7 @@ ENTRY(aesni_dec)
+ 	popl KLEN
+ 	popl KEYP
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_dec)
+ 
+@@ -2164,6 +2176,7 @@ _aesni_dec1:
+ 	AESDEC KEY STATE
+ 	movaps 0x70(TKEYP), KEY
+ 	AESDECLAST KEY STATE
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_aesni_dec1)
+ 
+@@ -2273,6 +2286,7 @@ _aesni_dec4:
+ 	AESDECLAST KEY STATE2
+ 	AESDECLAST KEY STATE3
+ 	AESDECLAST KEY STATE4
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_aesni_dec4)
+ 
+@@ -2331,6 +2345,7 @@ ENTRY(aesni_ecb_enc)
+ 	popl KEYP
+ 	popl LEN
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_ecb_enc)
+ 
+@@ -2390,6 +2405,7 @@ ENTRY(aesni_ecb_dec)
+ 	popl KEYP
+ 	popl LEN
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_ecb_dec)
+ 
+@@ -2432,6 +2448,7 @@ ENTRY(aesni_cbc_enc)
+ 	popl LEN
+ 	popl IVP
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_cbc_enc)
+ 
+@@ -2523,6 +2540,7 @@ ENTRY(aesni_cbc_dec)
+ 	popl LEN
+ 	popl IVP
+ #endif
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_cbc_dec)
+ 
+@@ -2550,6 +2568,7 @@ _aesni_inc_init:
+ 	mov $1, TCTR_LOW
+ 	MOVQ_R64_XMM TCTR_LOW INC
+ 	MOVQ_R64_XMM CTR TCTR_LOW
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_aesni_inc_init)
+ 
+@@ -2579,6 +2598,7 @@ _aesni_inc:
+ .Linc_low:
+ 	movaps CTR, IV
+ 	PSHUFB_XMM BSWAP_MASK IV
++	pax_force_retaddr
+ 	ret
+ ENDPROC(_aesni_inc)
+ 
+@@ -2640,6 +2660,7 @@ ENTRY(aesni_ctr_enc)
+ .Lctr_enc_ret:
+ 	movups IV, (IVP)
+ .Lctr_enc_just_ret:
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_ctr_enc)
+ 
+@@ -2766,6 +2787,7 @@ ENTRY(aesni_xts_crypt8)
+ 	pxor INC, STATE4
+ 	movdqu STATE4, 0x70(OUTP)
+ 
++	pax_force_retaddr
+ 	ret
+ ENDPROC(aesni_xts_crypt8)
+ 
+diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
+index 246c670..466e2d6 100644
+--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
++++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
+@@ -21,6 +21,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .file "blowfish-x86_64-asm.S"
+ .text
+@@ -149,9 +150,11 @@ ENTRY(__blowfish_enc_blk)
+ 	jnz .L__enc_xor;
+ 
+ 	write_block();
++	pax_force_retaddr
+ 	ret;
+ .L__enc_xor:
+ 	xor_block();
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__blowfish_enc_blk)
+ 
+@@ -183,6 +186,7 @@ ENTRY(blowfish_dec_blk)
+ 
+ 	movq %r11, %rbp;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(blowfish_dec_blk)
+ 
+@@ -334,6 +338,7 @@ ENTRY(__blowfish_enc_blk_4way)
+ 
+ 	popq %rbx;
+ 	popq %rbp;
++	pax_force_retaddr
+ 	ret;
+ 
+ .L__enc_xor4:
+@@ -341,6 +346,7 @@ ENTRY(__blowfish_enc_blk_4way)
+ 
+ 	popq %rbx;
+ 	popq %rbp;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__blowfish_enc_blk_4way)
+ 
+@@ -375,5 +381,6 @@ ENTRY(blowfish_dec_blk_4way)
+ 	popq %rbx;
+ 	popq %rbp;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(blowfish_dec_blk_4way)
+diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
+index ce71f92..1dce7ec 100644
+--- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S
++++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
+@@ -16,6 +16,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ #define CAMELLIA_TABLE_BYTE_LEN 272
+ 
+@@ -191,6 +192,7 @@ roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
+ 	roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ 		  %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
+ 		  %rcx, (%r9));
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+ 
+@@ -199,6 +201,7 @@ roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
+ 	roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
+ 		  %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
+ 		  %rax, (%r9));
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+ 
+@@ -780,6 +783,7 @@ __camellia_enc_blk16:
+ 		    %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ 		    %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
+ 
++	pax_force_retaddr
+ 	ret;
+ 
+ .align 8
+@@ -865,6 +869,7 @@ __camellia_dec_blk16:
+ 		    %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ 		    %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
+ 
++	pax_force_retaddr
+ 	ret;
+ 
+ .align 8
+@@ -904,6 +909,7 @@ ENTRY(camellia_ecb_enc_16way)
+ 		     %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ 		     %xmm8, %rsi);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_ecb_enc_16way)
+ 
+@@ -932,6 +938,7 @@ ENTRY(camellia_ecb_dec_16way)
+ 		     %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ 		     %xmm8, %rsi);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_ecb_dec_16way)
+ 
+@@ -981,6 +988,7 @@ ENTRY(camellia_cbc_dec_16way)
+ 		     %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ 		     %xmm8, %rsi);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_cbc_dec_16way)
+ 
+@@ -1092,6 +1100,7 @@ ENTRY(camellia_ctr_16way)
+ 		     %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ 		     %xmm8, %rsi);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_ctr_16way)
+ 
+@@ -1234,6 +1243,7 @@ camellia_xts_crypt_16way:
+ 		     %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ 		     %xmm8, %rsi);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_xts_crypt_16way)
+ 
+diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
+index 0e0b886..5a3123c 100644
+--- a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
++++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
+@@ -11,6 +11,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ #define CAMELLIA_TABLE_BYTE_LEN 272
+ 
+@@ -230,6 +231,7 @@ roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
+ 	roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ 		  %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
+ 		  %rcx, (%r9));
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+ 
+@@ -238,6 +240,7 @@ roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
+ 	roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
+ 		  %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
+ 		  %rax, (%r9));
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+ 
+@@ -820,6 +823,7 @@ __camellia_enc_blk32:
+ 		    %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ 		    %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
+ 
++	pax_force_retaddr
+ 	ret;
+ 
+ .align 8
+@@ -905,6 +909,7 @@ __camellia_dec_blk32:
+ 		    %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ 		    %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
+ 
++	pax_force_retaddr
+ 	ret;
+ 
+ .align 8
+@@ -948,6 +953,7 @@ ENTRY(camellia_ecb_enc_32way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_ecb_enc_32way)
+ 
+@@ -980,6 +986,7 @@ ENTRY(camellia_ecb_dec_32way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_ecb_dec_32way)
+ 
+@@ -1046,6 +1053,7 @@ ENTRY(camellia_cbc_dec_32way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_cbc_dec_32way)
+ 
+@@ -1184,6 +1192,7 @@ ENTRY(camellia_ctr_32way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_ctr_32way)
+ 
+@@ -1349,6 +1358,7 @@ camellia_xts_crypt_32way:
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_xts_crypt_32way)
+ 
+diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
+index 310319c..db3d7b5 100644
+--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
++++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
+@@ -21,6 +21,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .file "camellia-x86_64-asm_64.S"
+ .text
+@@ -228,12 +229,14 @@ ENTRY(__camellia_enc_blk)
+ 	enc_outunpack(mov, RT1);
+ 
+ 	movq RRBP, %rbp;
++	pax_force_retaddr
+ 	ret;
+ 
+ .L__enc_xor:
+ 	enc_outunpack(xor, RT1);
+ 
+ 	movq RRBP, %rbp;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__camellia_enc_blk)
+ 
+@@ -272,6 +275,7 @@ ENTRY(camellia_dec_blk)
+ 	dec_outunpack();
+ 
+ 	movq RRBP, %rbp;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_dec_blk)
+ 
+@@ -463,6 +467,7 @@ ENTRY(__camellia_enc_blk_2way)
+ 
+ 	movq RRBP, %rbp;
+ 	popq %rbx;
++	pax_force_retaddr
+ 	ret;
+ 
+ .L__enc2_xor:
+@@ -470,6 +475,7 @@ ENTRY(__camellia_enc_blk_2way)
+ 
+ 	movq RRBP, %rbp;
+ 	popq %rbx;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__camellia_enc_blk_2way)
+ 
+@@ -510,5 +516,6 @@ ENTRY(camellia_dec_blk_2way)
+ 
+ 	movq RRBP, %rbp;
+ 	movq RXOR, %rbx;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(camellia_dec_blk_2way)
+diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+index c35fd5d..2d8c7db 100644
+--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
++++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+@@ -24,6 +24,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .file "cast5-avx-x86_64-asm_64.S"
+ 
+@@ -281,6 +282,7 @@ __cast5_enc_blk16:
+ 	outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
+ 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__cast5_enc_blk16)
+ 
+@@ -352,6 +354,7 @@ __cast5_dec_blk16:
+ 	outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
+ 	outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
+ 
++	pax_force_retaddr
+ 	ret;
+ 
+ .L__skip_dec:
+@@ -388,6 +391,7 @@ ENTRY(cast5_ecb_enc_16way)
+ 	vmovdqu RR4, (6*4*4)(%r11);
+ 	vmovdqu RL4, (7*4*4)(%r11);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast5_ecb_enc_16way)
+ 
+@@ -420,6 +424,7 @@ ENTRY(cast5_ecb_dec_16way)
+ 	vmovdqu RR4, (6*4*4)(%r11);
+ 	vmovdqu RL4, (7*4*4)(%r11);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast5_ecb_dec_16way)
+ 
+@@ -430,10 +435,10 @@ ENTRY(cast5_cbc_dec_16way)
+ 	 *	%rdx: src
+ 	 */
+ 
+-	pushq %r12;
++	pushq %r14;
+ 
+ 	movq %rsi, %r11;
+-	movq %rdx, %r12;
++	movq %rdx, %r14;
+ 
+ 	vmovdqu (0*16)(%rdx), RL1;
+ 	vmovdqu (1*16)(%rdx), RR1;
+@@ -447,16 +452,16 @@ ENTRY(cast5_cbc_dec_16way)
+ 	call __cast5_dec_blk16;
+ 
+ 	/* xor with src */
+-	vmovq (%r12), RX;
++	vmovq (%r14), RX;
+ 	vpshufd $0x4f, RX, RX;
+ 	vpxor RX, RR1, RR1;
+-	vpxor 0*16+8(%r12), RL1, RL1;
+-	vpxor 1*16+8(%r12), RR2, RR2;
+-	vpxor 2*16+8(%r12), RL2, RL2;
+-	vpxor 3*16+8(%r12), RR3, RR3;
+-	vpxor 4*16+8(%r12), RL3, RL3;
+-	vpxor 5*16+8(%r12), RR4, RR4;
+-	vpxor 6*16+8(%r12), RL4, RL4;
++	vpxor 0*16+8(%r14), RL1, RL1;
++	vpxor 1*16+8(%r14), RR2, RR2;
++	vpxor 2*16+8(%r14), RL2, RL2;
++	vpxor 3*16+8(%r14), RR3, RR3;
++	vpxor 4*16+8(%r14), RL3, RL3;
++	vpxor 5*16+8(%r14), RR4, RR4;
++	vpxor 6*16+8(%r14), RL4, RL4;
+ 
+ 	vmovdqu RR1, (0*16)(%r11);
+ 	vmovdqu RL1, (1*16)(%r11);
+@@ -467,8 +472,9 @@ ENTRY(cast5_cbc_dec_16way)
+ 	vmovdqu RR4, (6*16)(%r11);
+ 	vmovdqu RL4, (7*16)(%r11);
+ 
+-	popq %r12;
++	popq %r14;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast5_cbc_dec_16way)
+ 
+@@ -480,10 +486,10 @@ ENTRY(cast5_ctr_16way)
+ 	 *	%rcx: iv (big endian, 64bit)
+ 	 */
+ 
+-	pushq %r12;
++	pushq %r14;
+ 
+ 	movq %rsi, %r11;
+-	movq %rdx, %r12;
++	movq %rdx, %r14;
+ 
+ 	vpcmpeqd RTMP, RTMP, RTMP;
+ 	vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
+@@ -523,14 +529,14 @@ ENTRY(cast5_ctr_16way)
+ 	call __cast5_enc_blk16;
+ 
+ 	/* dst = src ^ iv */
+-	vpxor (0*16)(%r12), RR1, RR1;
+-	vpxor (1*16)(%r12), RL1, RL1;
+-	vpxor (2*16)(%r12), RR2, RR2;
+-	vpxor (3*16)(%r12), RL2, RL2;
+-	vpxor (4*16)(%r12), RR3, RR3;
+-	vpxor (5*16)(%r12), RL3, RL3;
+-	vpxor (6*16)(%r12), RR4, RR4;
+-	vpxor (7*16)(%r12), RL4, RL4;
++	vpxor (0*16)(%r14), RR1, RR1;
++	vpxor (1*16)(%r14), RL1, RL1;
++	vpxor (2*16)(%r14), RR2, RR2;
++	vpxor (3*16)(%r14), RL2, RL2;
++	vpxor (4*16)(%r14), RR3, RR3;
++	vpxor (5*16)(%r14), RL3, RL3;
++	vpxor (6*16)(%r14), RR4, RR4;
++	vpxor (7*16)(%r14), RL4, RL4;
+ 	vmovdqu RR1, (0*16)(%r11);
+ 	vmovdqu RL1, (1*16)(%r11);
+ 	vmovdqu RR2, (2*16)(%r11);
+@@ -540,7 +546,8 @@ ENTRY(cast5_ctr_16way)
+ 	vmovdqu RR4, (6*16)(%r11);
+ 	vmovdqu RL4, (7*16)(%r11);
+ 
+-	popq %r12;
++	popq %r14;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast5_ctr_16way)
+diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+index e3531f8..e123f35 100644
+--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
++++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+@@ -24,6 +24,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ #include "glue_helper-asm-avx.S"
+ 
+ .file "cast6-avx-x86_64-asm_64.S"
+@@ -295,6 +296,7 @@ __cast6_enc_blk8:
+ 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
+ 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__cast6_enc_blk8)
+ 
+@@ -340,6 +342,7 @@ __cast6_dec_blk8:
+ 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
+ 	outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__cast6_dec_blk8)
+ 
+@@ -358,6 +361,7 @@ ENTRY(cast6_ecb_enc_8way)
+ 
+ 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast6_ecb_enc_8way)
+ 
+@@ -376,6 +380,7 @@ ENTRY(cast6_ecb_dec_8way)
+ 
+ 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast6_ecb_dec_8way)
+ 
+@@ -386,19 +391,20 @@ ENTRY(cast6_cbc_dec_8way)
+ 	 *	%rdx: src
+ 	 */
+ 
+-	pushq %r12;
++	pushq %r14;
+ 
+ 	movq %rsi, %r11;
+-	movq %rdx, %r12;
++	movq %rdx, %r14;
+ 
+ 	load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
+ 	call __cast6_dec_blk8;
+ 
+-	store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
++	store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
+-	popq %r12;
++	popq %r14;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast6_cbc_dec_8way)
+ 
+@@ -410,20 +416,21 @@ ENTRY(cast6_ctr_8way)
+ 	 *	%rcx: iv (little endian, 128bit)
+ 	 */
+ 
+-	pushq %r12;
++	pushq %r14;
+ 
+ 	movq %rsi, %r11;
+-	movq %rdx, %r12;
++	movq %rdx, %r14;
+ 
+ 	load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
+ 		      RD2, RX, RKR, RKM);
+ 
+ 	call __cast6_enc_blk8;
+ 
+-	store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
++	store_ctr_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
+-	popq %r12;
++	popq %r14;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast6_ctr_8way)
+ 
+@@ -446,6 +453,7 @@ ENTRY(cast6_xts_enc_8way)
+ 	/* dst <= regs xor IVs(in dst) */
+ 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast6_xts_enc_8way)
+ 
+@@ -468,5 +476,6 @@ ENTRY(cast6_xts_dec_8way)
+ 	/* dst <= regs xor IVs(in dst) */
+ 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(cast6_xts_dec_8way)
+diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+index dbc4339..de6e120 100644
+--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
++++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+@@ -45,6 +45,7 @@
+ 
+ #include <asm/inst.h>
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction
+ 
+@@ -312,6 +313,7 @@ do_return:
+ 	popq    %rsi
+ 	popq    %rdi
+ 	popq    %rbx
++	pax_force_retaddr
+         ret
+ 
+         ################################################################
+diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
+index 185fad4..ff4cd36 100644
+--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
++++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
+@@ -18,6 +18,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <asm/inst.h>
++#include <asm/alternative-asm.h>
+ 
+ .data
+ 
+@@ -89,6 +90,7 @@ __clmul_gf128mul_ble:
+ 	psrlq $1, T2
+ 	pxor T2, T1
+ 	pxor T1, DATA
++	pax_force_retaddr
+ 	ret
+ ENDPROC(__clmul_gf128mul_ble)
+ 
+@@ -101,6 +103,7 @@ ENTRY(clmul_ghash_mul)
+ 	call __clmul_gf128mul_ble
+ 	PSHUFB_XMM BSWAP DATA
+ 	movups DATA, (%rdi)
++	pax_force_retaddr
+ 	ret
+ ENDPROC(clmul_ghash_mul)
+ 
+@@ -128,5 +131,6 @@ ENTRY(clmul_ghash_update)
+ 	PSHUFB_XMM BSWAP DATA
+ 	movups DATA, (%rdi)
+ .Lupdate_just_ret:
++	pax_force_retaddr
+ 	ret
+ ENDPROC(clmul_ghash_update)
+diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
+index 9279e0b..c4b3d2c 100644
+--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
++++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
+@@ -1,4 +1,5 @@
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ # enter salsa20_encrypt_bytes
+ ENTRY(salsa20_encrypt_bytes)
+@@ -789,6 +790,7 @@ ENTRY(salsa20_encrypt_bytes)
+ 	add	%r11,%rsp
+ 	mov	%rdi,%rax
+ 	mov	%rsi,%rdx
++	pax_force_retaddr
+ 	ret
+ #   bytesatleast65:
+ ._bytesatleast65:
+@@ -889,6 +891,7 @@ ENTRY(salsa20_keysetup)
+ 	add	%r11,%rsp
+ 	mov	%rdi,%rax
+ 	mov	%rsi,%rdx
++	pax_force_retaddr
+ 	ret
+ ENDPROC(salsa20_keysetup)
+ 
+@@ -914,5 +917,6 @@ ENTRY(salsa20_ivsetup)
+ 	add	%r11,%rsp
+ 	mov	%rdi,%rax
+ 	mov	%rsi,%rdx
++	pax_force_retaddr
+ 	ret
+ ENDPROC(salsa20_ivsetup)
+diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+index 2f202f4..d9164d6 100644
+--- a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
++++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
+@@ -24,6 +24,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ #include "glue_helper-asm-avx.S"
+ 
+ .file "serpent-avx-x86_64-asm_64.S"
+@@ -618,6 +619,7 @@ __serpent_enc_blk8_avx:
+ 	write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__serpent_enc_blk8_avx)
+ 
+@@ -672,6 +674,7 @@ __serpent_dec_blk8_avx:
+ 	write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
+ 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__serpent_dec_blk8_avx)
+ 
+@@ -688,6 +691,7 @@ ENTRY(serpent_ecb_enc_8way_avx)
+ 
+ 	store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_ecb_enc_8way_avx)
+ 
+@@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_8way_avx)
+ 
+ 	store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_ecb_dec_8way_avx)
+ 
+@@ -720,6 +725,7 @@ ENTRY(serpent_cbc_dec_8way_avx)
+ 
+ 	store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_cbc_dec_8way_avx)
+ 
+@@ -738,6 +744,7 @@ ENTRY(serpent_ctr_8way_avx)
+ 
+ 	store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_ctr_8way_avx)
+ 
+@@ -758,6 +765,7 @@ ENTRY(serpent_xts_enc_8way_avx)
+ 	/* dst <= regs xor IVs(in dst) */
+ 	store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_xts_enc_8way_avx)
+ 
+@@ -778,5 +786,6 @@ ENTRY(serpent_xts_dec_8way_avx)
+ 	/* dst <= regs xor IVs(in dst) */
+ 	store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_xts_dec_8way_avx)
+diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
+index b222085..abd483c 100644
+--- a/arch/x86/crypto/serpent-avx2-asm_64.S
++++ b/arch/x86/crypto/serpent-avx2-asm_64.S
+@@ -15,6 +15,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ #include "glue_helper-asm-avx2.S"
+ 
+ .file "serpent-avx2-asm_64.S"
+@@ -610,6 +611,7 @@ __serpent_enc_blk16:
+ 	write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ 	write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__serpent_enc_blk16)
+ 
+@@ -664,6 +666,7 @@ __serpent_dec_blk16:
+ 	write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
+ 	write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__serpent_dec_blk16)
+ 
+@@ -684,6 +687,7 @@ ENTRY(serpent_ecb_enc_16way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_ecb_enc_16way)
+ 
+@@ -704,6 +708,7 @@ ENTRY(serpent_ecb_dec_16way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_ecb_dec_16way)
+ 
+@@ -725,6 +730,7 @@ ENTRY(serpent_cbc_dec_16way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_cbc_dec_16way)
+ 
+@@ -748,6 +754,7 @@ ENTRY(serpent_ctr_16way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_ctr_16way)
+ 
+@@ -772,6 +779,7 @@ ENTRY(serpent_xts_enc_16way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_xts_enc_16way)
+ 
+@@ -796,5 +804,6 @@ ENTRY(serpent_xts_dec_16way)
+ 
+ 	vzeroupper;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_xts_dec_16way)
+diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
+index acc066c..1559cc4 100644
+--- a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
++++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
+@@ -25,6 +25,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .file "serpent-sse2-x86_64-asm_64.S"
+ .text
+@@ -690,12 +691,14 @@ ENTRY(__serpent_enc_blk_8way)
+ 	write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ 	write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ 
+ .L__enc_xor8:
+ 	xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ 	xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__serpent_enc_blk_8way)
+ 
+@@ -750,5 +753,6 @@ ENTRY(serpent_dec_blk_8way)
+ 	write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
+ 	write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(serpent_dec_blk_8way)
+diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
+index a410950..9dfe7ad 100644
+--- a/arch/x86/crypto/sha1_ssse3_asm.S
++++ b/arch/x86/crypto/sha1_ssse3_asm.S
+@@ -29,6 +29,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ #define CTX	%rdi	// arg1
+ #define BUF	%rsi	// arg2
+@@ -75,9 +76,9 @@
+ 
+ 	push	%rbx
+ 	push	%rbp
+-	push	%r12
++	push	%r14
+ 
+-	mov	%rsp, %r12
++	mov	%rsp, %r14
+ 	sub	$64, %rsp		# allocate workspace
+ 	and	$~15, %rsp		# align stack
+ 
+@@ -99,11 +100,12 @@
+ 	xor	%rax, %rax
+ 	rep stosq
+ 
+-	mov	%r12, %rsp		# deallocate workspace
++	mov	%r14, %rsp		# deallocate workspace
+ 
+-	pop	%r12
++	pop	%r14
+ 	pop	%rbp
+ 	pop	%rbx
++	pax_force_retaddr
+ 	ret
+ 
+ 	ENDPROC(\name)
+diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
+index 642f156..51a513c 100644
+--- a/arch/x86/crypto/sha256-avx-asm.S
++++ b/arch/x86/crypto/sha256-avx-asm.S
+@@ -49,6 +49,7 @@
+ 
+ #ifdef CONFIG_AS_AVX
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ ## assume buffers not aligned
+ #define    VMOVDQ vmovdqu
+@@ -460,6 +461,7 @@ done_hash:
+ 	popq    %r13
+ 	popq    %rbp
+ 	popq    %rbx
++	pax_force_retaddr
+ 	ret
+ ENDPROC(sha256_transform_avx)
+ 
+diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
+index 9e86944..3795e6a 100644
+--- a/arch/x86/crypto/sha256-avx2-asm.S
++++ b/arch/x86/crypto/sha256-avx2-asm.S
+@@ -50,6 +50,7 @@
+ 
+ #ifdef CONFIG_AS_AVX2
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ ## assume buffers not aligned
+ #define	VMOVDQ vmovdqu
+@@ -720,6 +721,7 @@ done_hash:
+ 	popq	%r12
+ 	popq	%rbp
+ 	popq	%rbx
++	pax_force_retaddr
+ 	ret
+ ENDPROC(sha256_transform_rorx)
+ 
+diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
+index f833b74..8c62a9e 100644
+--- a/arch/x86/crypto/sha256-ssse3-asm.S
++++ b/arch/x86/crypto/sha256-ssse3-asm.S
+@@ -47,6 +47,7 @@
+ ########################################################################
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ ## assume buffers not aligned
+ #define    MOVDQ movdqu
+@@ -471,6 +472,7 @@ done_hash:
+ 	popq    %rbp
+ 	popq    %rbx
+ 
++	pax_force_retaddr
+ 	ret
+ ENDPROC(sha256_transform_ssse3)
+ 
+diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
+index 974dde9..a823ff9 100644
+--- a/arch/x86/crypto/sha512-avx-asm.S
++++ b/arch/x86/crypto/sha512-avx-asm.S
+@@ -49,6 +49,7 @@
+ 
+ #ifdef CONFIG_AS_AVX
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .text
+ 
+@@ -364,6 +365,7 @@ updateblock:
+ 	mov	frame_RSPSAVE(%rsp), %rsp
+ 
+ nowork:
++	pax_force_retaddr
+ 	ret
+ ENDPROC(sha512_transform_avx)
+ 
+diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
+index 568b961..ed20c37 100644
+--- a/arch/x86/crypto/sha512-avx2-asm.S
++++ b/arch/x86/crypto/sha512-avx2-asm.S
+@@ -51,6 +51,7 @@
+ 
+ #ifdef CONFIG_AS_AVX2
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .text
+ 
+@@ -678,6 +679,7 @@ done_hash:
+ 
+ 	# Restore Stack Pointer
+ 	mov	frame_RSPSAVE(%rsp), %rsp
++	pax_force_retaddr
+ 	ret
+ ENDPROC(sha512_transform_rorx)
+ 
+diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
+index fb56855..6edd768 100644
+--- a/arch/x86/crypto/sha512-ssse3-asm.S
++++ b/arch/x86/crypto/sha512-ssse3-asm.S
+@@ -48,6 +48,7 @@
+ ########################################################################
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .text
+ 
+@@ -363,6 +364,7 @@ updateblock:
+ 	mov	frame_RSPSAVE(%rsp), %rsp
+ 
+ nowork:
++	pax_force_retaddr
+ 	ret
+ ENDPROC(sha512_transform_ssse3)
+ 
+diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+index 0505813..b067311 100644
+--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
++++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+@@ -24,6 +24,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ #include "glue_helper-asm-avx.S"
+ 
+ .file "twofish-avx-x86_64-asm_64.S"
+@@ -284,6 +285,7 @@ __twofish_enc_blk8:
+ 	outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
+ 	outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__twofish_enc_blk8)
+ 
+@@ -324,6 +326,7 @@ __twofish_dec_blk8:
+ 	outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
+ 	outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__twofish_dec_blk8)
+ 
+@@ -342,6 +345,7 @@ ENTRY(twofish_ecb_enc_8way)
+ 
+ 	store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_ecb_enc_8way)
+ 
+@@ -360,6 +364,7 @@ ENTRY(twofish_ecb_dec_8way)
+ 
+ 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_ecb_dec_8way)
+ 
+@@ -370,19 +375,20 @@ ENTRY(twofish_cbc_dec_8way)
+ 	 *	%rdx: src
+ 	 */
+ 
+-	pushq %r12;
++	pushq %r14;
+ 
+ 	movq %rsi, %r11;
+-	movq %rdx, %r12;
++	movq %rdx, %r14;
+ 
+ 	load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+ 
+ 	call __twofish_dec_blk8;
+ 
+-	store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
++	store_cbc_8way(%r14, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
+-	popq %r12;
++	popq %r14;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_cbc_dec_8way)
+ 
+@@ -394,20 +400,21 @@ ENTRY(twofish_ctr_8way)
+ 	 *	%rcx: iv (little endian, 128bit)
+ 	 */
+ 
+-	pushq %r12;
++	pushq %r14;
+ 
+ 	movq %rsi, %r11;
+-	movq %rdx, %r12;
++	movq %rdx, %r14;
+ 
+ 	load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
+ 		      RD2, RX0, RX1, RY0);
+ 
+ 	call __twofish_enc_blk8;
+ 
+-	store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
++	store_ctr_8way(%r14, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+ 
+-	popq %r12;
++	popq %r14;
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_ctr_8way)
+ 
+@@ -430,6 +437,7 @@ ENTRY(twofish_xts_enc_8way)
+ 	/* dst <= regs xor IVs(in dst) */
+ 	store_xts_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_xts_enc_8way)
+ 
+@@ -452,5 +460,6 @@ ENTRY(twofish_xts_dec_8way)
+ 	/* dst <= regs xor IVs(in dst) */
+ 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+ 
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_xts_dec_8way)
+diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
+index 1c3b7ce..02f578d 100644
+--- a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
++++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
+@@ -21,6 +21,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ .file "twofish-x86_64-asm-3way.S"
+ .text
+@@ -258,6 +259,7 @@ ENTRY(__twofish_enc_blk_3way)
+ 	popq %r13;
+ 	popq %r14;
+ 	popq %r15;
++	pax_force_retaddr
+ 	ret;
+ 
+ .L__enc_xor3:
+@@ -269,6 +271,7 @@ ENTRY(__twofish_enc_blk_3way)
+ 	popq %r13;
+ 	popq %r14;
+ 	popq %r15;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(__twofish_enc_blk_3way)
+ 
+@@ -308,5 +311,6 @@ ENTRY(twofish_dec_blk_3way)
+ 	popq %r13;
+ 	popq %r14;
+ 	popq %r15;
++	pax_force_retaddr
+ 	ret;
+ ENDPROC(twofish_dec_blk_3way)
+diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
+index a039d21..524b8b2 100644
+--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
++++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
+@@ -22,6 +22,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <asm/asm-offsets.h>
++#include <asm/alternative-asm.h>
+ 
+ #define a_offset	0
+ #define b_offset	4
+@@ -265,6 +266,7 @@ ENTRY(twofish_enc_blk)
+ 
+ 	popq	R1
+ 	movq	$1,%rax
++	pax_force_retaddr
+ 	ret
+ ENDPROC(twofish_enc_blk)
+ 
+@@ -317,5 +319,6 @@ ENTRY(twofish_dec_blk)
+ 
+ 	popq	R1
+ 	movq	$1,%rax
++	pax_force_retaddr
+ 	ret
+ ENDPROC(twofish_dec_blk)
+diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
+index d21ff89..6da8e6e 100644
+--- a/arch/x86/ia32/ia32_aout.c
++++ b/arch/x86/ia32/ia32_aout.c
+@@ -153,6 +153,8 @@ static int aout_core_dump(struct coredump_params *cprm)
+ 	unsigned long dump_start, dump_size;
+ 	struct user32 dump;
+ 
++	memset(&dump, 0, sizeof(dump));
++
+ 	fs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	has_dumped = 1;
+diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
+index 2206757..85cbcfa 100644
+--- a/arch/x86/ia32/ia32_signal.c
++++ b/arch/x86/ia32/ia32_signal.c
+@@ -218,7 +218,7 @@ asmlinkage long sys32_sigreturn(void)
+ 	if (__get_user(set.sig[0], &frame->sc.oldmask)
+ 	    || (_COMPAT_NSIG_WORDS > 1
+ 		&& __copy_from_user((((char *) &set.sig) + 4),
+-				    &frame->extramask,
++				    frame->extramask,
+ 				    sizeof(frame->extramask))))
+ 		goto badframe;
+ 
+@@ -338,7 +338,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
+ 	sp -= frame_size;
+ 	/* Align the stack pointer according to the i386 ABI,
+ 	 * i.e. so that on function entry ((sp + 4) & 15) == 0. */
+-	sp = ((sp + 4) & -16ul) - 4;
++	sp = ((sp - 12) & -16ul) - 4;
+ 	return (void __user *) sp;
+ }
+ 
+@@ -386,7 +386,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
+ 			restorer = VDSO32_SYMBOL(current->mm->context.vdso,
+ 						 sigreturn);
+ 		else
+-			restorer = &frame->retcode;
++			restorer = frame->retcode;
+ 	}
+ 
+ 	put_user_try {
+@@ -396,7 +396,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig,
+ 		 * These are actually not used anymore, but left because some
+ 		 * gdb versions depend on them as a marker.
+ 		 */
+-		put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
++		put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
+ 	} put_user_catch(err);
+ 
+ 	if (err)
+@@ -438,7 +438,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
+ 		0xb8,
+ 		__NR_ia32_rt_sigreturn,
+ 		0x80cd,
+-		0,
++		0
+ 	};
+ 
+ 	frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate);
+@@ -461,16 +461,18 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig,
+ 
+ 		if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ 			restorer = ksig->ka.sa.sa_restorer;
++		else if (current->mm->context.vdso)
++			/* Return stub is in 32bit vsyscall page */
++			restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
+ 		else
+-			restorer = VDSO32_SYMBOL(current->mm->context.vdso,
+-						 rt_sigreturn);
++			restorer = frame->retcode;
+ 		put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
+ 
+ 		/*
+ 		 * Not actually used anymore, but left because some gdb
+ 		 * versions need it.
+ 		 */
+-		put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode);
++		put_user_ex(*((const u64 *)&code), (u64 __user *)frame->retcode);
+ 	} put_user_catch(err);
+ 
+ 	err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
+diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
+index 92a2e93..9b829fa 100644
+--- a/arch/x86/ia32/ia32entry.S
++++ b/arch/x86/ia32/ia32entry.S
+@@ -15,8 +15,10 @@
+ #include <asm/irqflags.h>
+ #include <asm/asm.h>
+ #include <asm/smap.h>
++#include <asm/pgtable.h>
+ #include <linux/linkage.h>
+ #include <linux/err.h>
++#include <asm/alternative-asm.h>
+ 
+ /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this.  */
+ #include <linux/elf-em.h>
+@@ -62,12 +64,12 @@
+ 	 */
+ 	.macro LOAD_ARGS32 offset, _r9=0
+ 	.if \_r9
+-	movl \offset+16(%rsp),%r9d
++	movl \offset+R9(%rsp),%r9d
+ 	.endif
+-	movl \offset+40(%rsp),%ecx
+-	movl \offset+48(%rsp),%edx
+-	movl \offset+56(%rsp),%esi
+-	movl \offset+64(%rsp),%edi
++	movl \offset+RCX(%rsp),%ecx
++	movl \offset+RDX(%rsp),%edx
++	movl \offset+RSI(%rsp),%esi
++	movl \offset+RDI(%rsp),%edi
+ 	movl %eax,%eax			/* zero extension */
+ 	.endm
+ 	
+@@ -96,6 +98,32 @@ ENTRY(native_irq_enable_sysexit)
+ ENDPROC(native_irq_enable_sysexit)
+ #endif
+ 
++	.macro pax_enter_kernel_user
++	pax_set_fptr_mask
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	call pax_enter_kernel_user
++#endif
++	.endm
++
++	.macro pax_exit_kernel_user
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	call pax_exit_kernel_user
++#endif
++#ifdef CONFIG_PAX_RANDKSTACK
++	pushq %rax
++	pushq %r11
++	call pax_randomize_kstack
++	popq %r11
++	popq %rax
++#endif
++	.endm
++
++	.macro pax_erase_kstack
++#ifdef CONFIG_PAX_MEMORY_STACKLEAK
++	call pax_erase_kstack
++#endif
++	.endm
++
+ /*
+  * 32bit SYSENTER instruction entry.
+  *
+@@ -122,12 +150,6 @@ ENTRY(ia32_sysenter_target)
+ 	CFI_REGISTER	rsp,rbp
+ 	SWAPGS_UNSAFE_STACK
+ 	movq	PER_CPU_VAR(kernel_stack), %rsp
+-	addq	$(KERNEL_STACK_OFFSET),%rsp
+-	/*
+-	 * No need to follow this irqs on/off section: the syscall
+-	 * disabled irqs, here we enable it straight after entry:
+-	 */
+-	ENABLE_INTERRUPTS(CLBR_NONE)
+  	movl	%ebp,%ebp		/* zero extension */
+ 	pushq_cfi $__USER32_DS
+ 	/*CFI_REL_OFFSET ss,0*/
+@@ -135,23 +157,46 @@ ENTRY(ia32_sysenter_target)
+ 	CFI_REL_OFFSET rsp,0
+ 	pushfq_cfi
+ 	/*CFI_REL_OFFSET rflags,0*/
+-	movl	TI_sysenter_return+THREAD_INFO(%rsp,3*8-KERNEL_STACK_OFFSET),%r10d
+-	CFI_REGISTER rip,r10
++	orl	$X86_EFLAGS_IF,(%rsp)
++	GET_THREAD_INFO(%r11)
++	movl	TI_sysenter_return(%r11), %r11d
++	CFI_REGISTER rip,r11
+ 	pushq_cfi $__USER32_CS
+ 	/*CFI_REL_OFFSET cs,0*/
+ 	movl	%eax, %eax
+-	pushq_cfi %r10
++	pushq_cfi %r11
+ 	CFI_REL_OFFSET rip,0
+ 	pushq_cfi %rax
+ 	cld
+ 	SAVE_ARGS 0,1,0
++	pax_enter_kernel_user
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	pax_erase_kstack
++#endif
++
++	/*
++	 * No need to follow this irqs on/off section: the syscall
++	 * disabled irqs, here we enable it straight after entry:
++	 */
++	ENABLE_INTERRUPTS(CLBR_NONE)
+  	/* no need to do an access_ok check here because rbp has been
+  	   32bit zero extended */ 
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	addq	pax_user_shadow_base,%rbp
++	ASM_PAX_OPEN_USERLAND
++#endif
++
+ 	ASM_STAC
+ 1:	movl	(%rbp),%ebp
+ 	_ASM_EXTABLE(1b,ia32_badarg)
+ 	ASM_CLAC
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	ASM_PAX_CLOSE_USERLAND
++#endif
++
+ 	/*
+ 	 * Sysenter doesn't filter flags, so we need to clear NT
+ 	 * ourselves.  To save a few cycles, we can check whether
+@@ -161,8 +206,9 @@ ENTRY(ia32_sysenter_target)
+ 	jnz sysenter_fix_flags
+ sysenter_flags_fixed:
+ 
+-	orl     $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+-	testl   $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	GET_THREAD_INFO(%r11)
++	orl    $TS_COMPAT,TI_status(%r11)
++	testl  $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
+ 	CFI_REMEMBER_STATE
+ 	jnz  sysenter_tracesys
+ 	cmpq	$(IA32_NR_syscalls-1),%rax
+@@ -172,15 +218,18 @@ sysenter_do_call:
+ sysenter_dispatch:
+ 	call	*ia32_sys_call_table(,%rax,8)
+ 	movq	%rax,RAX-ARGOFFSET(%rsp)
++	GET_THREAD_INFO(%r11)
+ 	DISABLE_INTERRUPTS(CLBR_NONE)
+ 	TRACE_IRQS_OFF
+-	testl	$_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl	$_TIF_ALLWORK_MASK,TI_flags(%r11)
+ 	jnz	sysexit_audit
+ sysexit_from_sys_call:
+-	andl    $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	pax_exit_kernel_user
++	pax_erase_kstack
++	andl    $~TS_COMPAT,TI_status(%r11)
+ 	/* clear IF, that popfq doesn't enable interrupts early */
+-	andl  $~0x200,EFLAGS-R11(%rsp) 
+-	movl	RIP-R11(%rsp),%edx		/* User %eip */
++	andl  $~X86_EFLAGS_IF,EFLAGS(%rsp) 
++	movl	RIP(%rsp),%edx		/* User %eip */
+ 	CFI_REGISTER rip,rdx
+ 	RESTORE_ARGS 0,24,0,0,0,0
+ 	xorq	%r8,%r8
+@@ -205,6 +254,9 @@ sysexit_from_sys_call:
+ 	movl %eax,%esi			/* 2nd arg: syscall number */
+ 	movl $AUDIT_ARCH_I386,%edi	/* 1st arg: audit arch */
+ 	call __audit_syscall_entry
++
++	pax_erase_kstack
++
+ 	movl RAX-ARGOFFSET(%rsp),%eax	/* reload syscall number */
+ 	cmpq $(IA32_NR_syscalls-1),%rax
+ 	ja ia32_badsys
+@@ -216,7 +268,7 @@ sysexit_from_sys_call:
+ 	.endm
+ 
+ 	.macro auditsys_exit exit
+-	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
+ 	jnz ia32_ret_from_sys_call
+ 	TRACE_IRQS_ON
+ 	ENABLE_INTERRUPTS(CLBR_NONE)
+@@ -227,11 +279,12 @@ sysexit_from_sys_call:
+ 1:	setbe %al		/* 1 if error, 0 if not */
+ 	movzbl %al,%edi		/* zero-extend that into %edi */
+ 	call __audit_syscall_exit
++	GET_THREAD_INFO(%r11)
+ 	movq RAX-ARGOFFSET(%rsp),%rax	/* reload syscall return value */
+ 	movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
+ 	DISABLE_INTERRUPTS(CLBR_NONE)
+ 	TRACE_IRQS_OFF
+-	testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl %edi,TI_flags(%r11)
+ 	jz \exit
+ 	CLEAR_RREGS -ARGOFFSET
+ 	jmp int_with_check
+@@ -253,7 +306,7 @@ sysenter_fix_flags:
+ 
+ sysenter_tracesys:
+ #ifdef CONFIG_AUDITSYSCALL
+-	testl	$(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl	$(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
+ 	jz	sysenter_auditsys
+ #endif
+ 	SAVE_REST
+@@ -265,6 +318,9 @@ sysenter_tracesys:
+ 	RESTORE_REST
+ 	cmpq	$(IA32_NR_syscalls-1),%rax
+ 	ja	int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
++
++	pax_erase_kstack
++
+ 	jmp	sysenter_do_call
+ 	CFI_ENDPROC
+ ENDPROC(ia32_sysenter_target)
+@@ -292,19 +348,25 @@ ENDPROC(ia32_sysenter_target)
+ ENTRY(ia32_cstar_target)
+ 	CFI_STARTPROC32	simple
+ 	CFI_SIGNAL_FRAME
+-	CFI_DEF_CFA	rsp,KERNEL_STACK_OFFSET
++	CFI_DEF_CFA	rsp,0
+ 	CFI_REGISTER	rip,rcx
+ 	/*CFI_REGISTER	rflags,r11*/
+ 	SWAPGS_UNSAFE_STACK
+ 	movl	%esp,%r8d
+ 	CFI_REGISTER	rsp,r8
+ 	movq	PER_CPU_VAR(kernel_stack),%rsp
++	SAVE_ARGS 8*6,0,0
++	pax_enter_kernel_user
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	pax_erase_kstack
++#endif
++
+ 	/*
+ 	 * No need to follow this irqs on/off section: the syscall
+ 	 * disabled irqs and here we enable it straight after entry:
+ 	 */
+ 	ENABLE_INTERRUPTS(CLBR_NONE)
+-	SAVE_ARGS 8,0,0
+ 	movl 	%eax,%eax	/* zero extension */
+ 	movq	%rax,ORIG_RAX-ARGOFFSET(%rsp)
+ 	movq	%rcx,RIP-ARGOFFSET(%rsp)
+@@ -320,12 +382,25 @@ ENTRY(ia32_cstar_target)
+ 	/* no need to do an access_ok check here because r8 has been
+ 	   32bit zero extended */ 
+ 	/* hardware stack frame is complete now */	
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	ASM_PAX_OPEN_USERLAND
++	movq	pax_user_shadow_base,%r8
++	addq	RSP-ARGOFFSET(%rsp),%r8
++#endif
++
+ 	ASM_STAC
+ 1:	movl	(%r8),%r9d
+ 	_ASM_EXTABLE(1b,ia32_badarg)
+ 	ASM_CLAC
+-	orl     $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+-	testl   $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	ASM_PAX_CLOSE_USERLAND
++#endif
++
++	GET_THREAD_INFO(%r11)
++	orl   $TS_COMPAT,TI_status(%r11)
++	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
+ 	CFI_REMEMBER_STATE
+ 	jnz   cstar_tracesys
+ 	cmpq $IA32_NR_syscalls-1,%rax
+@@ -335,13 +410,16 @@ cstar_do_call:
+ cstar_dispatch:
+ 	call *ia32_sys_call_table(,%rax,8)
+ 	movq %rax,RAX-ARGOFFSET(%rsp)
++	GET_THREAD_INFO(%r11)
+ 	DISABLE_INTERRUPTS(CLBR_NONE)
+ 	TRACE_IRQS_OFF
+-	testl $_TIF_ALLWORK_MASK,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl $_TIF_ALLWORK_MASK,TI_flags(%r11)
+ 	jnz sysretl_audit
+ sysretl_from_sys_call:
+-	andl $~TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+-	RESTORE_ARGS 0,-ARG_SKIP,0,0,0
++	pax_exit_kernel_user
++	pax_erase_kstack
++	andl $~TS_COMPAT,TI_status(%r11)
++	RESTORE_ARGS 0,-ORIG_RAX,0,0,0
+ 	movl RIP-ARGOFFSET(%rsp),%ecx
+ 	CFI_REGISTER rip,rcx
+ 	movl EFLAGS-ARGOFFSET(%rsp),%r11d	
+@@ -368,7 +446,7 @@ sysretl_audit:
+ 
+ cstar_tracesys:
+ #ifdef CONFIG_AUDITSYSCALL
+-	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r11)
+ 	jz cstar_auditsys
+ #endif
+ 	xchgl %r9d,%ebp
+@@ -382,11 +460,19 @@ cstar_tracesys:
+ 	xchgl %ebp,%r9d
+ 	cmpq $(IA32_NR_syscalls-1),%rax
+ 	ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
++
++	pax_erase_kstack
++
+ 	jmp cstar_do_call
+ END(ia32_cstar_target)
+ 				
+ ia32_badarg:
+ 	ASM_CLAC
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	ASM_PAX_CLOSE_USERLAND
++#endif
++
+ 	movq $-EFAULT,%rax
+ 	jmp ia32_sysret
+ 	CFI_ENDPROC
+@@ -423,19 +509,26 @@ ENTRY(ia32_syscall)
+ 	CFI_REL_OFFSET	rip,RIP-RIP
+ 	PARAVIRT_ADJUST_EXCEPTION_FRAME
+ 	SWAPGS
+-	/*
+-	 * No need to follow this irqs on/off section: the syscall
+-	 * disabled irqs and here we enable it straight after entry:
+-	 */
+-	ENABLE_INTERRUPTS(CLBR_NONE)
+ 	movl %eax,%eax
+ 	pushq_cfi %rax
+ 	cld
+ 	/* note the registers are not zero extended to the sf.
+ 	   this could be a problem. */
+ 	SAVE_ARGS 0,1,0
+-	orl $TS_COMPAT,TI_status+THREAD_INFO(%rsp,RIP-ARGOFFSET)
+-	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	pax_enter_kernel_user
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	pax_erase_kstack
++#endif
++
++	/*
++	 * No need to follow this irqs on/off section: the syscall
++	 * disabled irqs and here we enable it straight after entry:
++	 */
++	ENABLE_INTERRUPTS(CLBR_NONE)
++	GET_THREAD_INFO(%r11)
++	orl   $TS_COMPAT,TI_status(%r11)
++	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r11)
+ 	jnz ia32_tracesys
+ 	cmpq $(IA32_NR_syscalls-1),%rax
+ 	ja ia32_badsys
+@@ -458,6 +551,9 @@ ia32_tracesys:
+ 	RESTORE_REST
+ 	cmpq $(IA32_NR_syscalls-1),%rax
+ 	ja  int_ret_from_sys_call	/* ia32_tracesys has set RAX(%rsp) */
++
++	pax_erase_kstack
++
+ 	jmp ia32_do_call
+ END(ia32_syscall)
+ 
+diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
+index 8e0ceec..af13504 100644
+--- a/arch/x86/ia32/sys_ia32.c
++++ b/arch/x86/ia32/sys_ia32.c
+@@ -69,8 +69,8 @@ asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
+  */
+ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
+ {
+-	typeof(ubuf->st_uid) uid = 0;
+-	typeof(ubuf->st_gid) gid = 0;
++	typeof(((struct stat64 *)0)->st_uid) uid = 0;
++	typeof(((struct stat64 *)0)->st_gid) gid = 0;
+ 	SET_UID(uid, from_kuid_munged(current_user_ns(), stat->uid));
+ 	SET_GID(gid, from_kgid_munged(current_user_ns(), stat->gid));
+ 	if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
+diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
+index 372231c..51b537d 100644
+--- a/arch/x86/include/asm/alternative-asm.h
++++ b/arch/x86/include/asm/alternative-asm.h
+@@ -18,6 +18,45 @@
+ 	.endm
+ #endif
+ 
++#ifdef KERNEXEC_PLUGIN
++	.macro pax_force_retaddr_bts rip=0
++	btsq $63,\rip(%rsp)
++	.endm
++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
++	.macro pax_force_retaddr rip=0, reload=0
++	btsq $63,\rip(%rsp)
++	.endm
++	.macro pax_force_fptr ptr
++	btsq $63,\ptr
++	.endm
++	.macro pax_set_fptr_mask
++	.endm
++#endif
++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
++	.macro pax_force_retaddr rip=0, reload=0
++	.if \reload
++	pax_set_fptr_mask
++	.endif
++	orq %r12,\rip(%rsp)
++	.endm
++	.macro pax_force_fptr ptr
++	orq %r12,\ptr
++	.endm
++	.macro pax_set_fptr_mask
++	movabs $0x8000000000000000,%r12
++	.endm
++#endif
++#else
++	.macro pax_force_retaddr rip=0, reload=0
++	.endm
++	.macro pax_force_fptr ptr
++	.endm
++	.macro pax_force_retaddr_bts rip=0
++	.endm
++	.macro pax_set_fptr_mask
++	.endm
++#endif
++
+ .macro altinstruction_entry orig alt feature orig_len alt_len
+ 	.long \orig - .
+ 	.long \alt - .
+diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
+index 0a3f9c9..c9d081d 100644
+--- a/arch/x86/include/asm/alternative.h
++++ b/arch/x86/include/asm/alternative.h
+@@ -106,7 +106,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
+ 	".pushsection .discard,\"aw\",@progbits\n"			\
+ 	DISCARD_ENTRY(1)						\
+ 	".popsection\n"							\
+-	".pushsection .altinstr_replacement, \"ax\"\n"			\
++	".pushsection .altinstr_replacement, \"a\"\n"			\
+ 	ALTINSTR_REPLACEMENT(newinstr, feature, 1)			\
+ 	".popsection"
+ 
+@@ -120,7 +120,7 @@ static inline int alternatives_text_reserved(void *start, void *end)
+ 	DISCARD_ENTRY(1)						\
+ 	DISCARD_ENTRY(2)						\
+ 	".popsection\n"							\
+-	".pushsection .altinstr_replacement, \"ax\"\n"			\
++	".pushsection .altinstr_replacement, \"a\"\n"			\
+ 	ALTINSTR_REPLACEMENT(newinstr1, feature1, 1)			\
+ 	ALTINSTR_REPLACEMENT(newinstr2, feature2, 2)			\
+ 	".popsection"
+diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
+index 1d2091a..f5074c1 100644
+--- a/arch/x86/include/asm/apic.h
++++ b/arch/x86/include/asm/apic.h
+@@ -45,7 +45,7 @@ static inline void generic_apic_probe(void)
+ 
+ #ifdef CONFIG_X86_LOCAL_APIC
+ 
+-extern unsigned int apic_verbosity;
++extern int apic_verbosity;
+ extern int local_apic_timer_c2_ok;
+ 
+ extern int disable_apic;
+diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
+index 20370c6..a2eb9b0 100644
+--- a/arch/x86/include/asm/apm.h
++++ b/arch/x86/include/asm/apm.h
+@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
+ 	__asm__ __volatile__(APM_DO_ZERO_SEGS
+ 		"pushl %%edi\n\t"
+ 		"pushl %%ebp\n\t"
+-		"lcall *%%cs:apm_bios_entry\n\t"
++		"lcall *%%ss:apm_bios_entry\n\t"
+ 		"setc %%al\n\t"
+ 		"popl %%ebp\n\t"
+ 		"popl %%edi\n\t"
+@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
+ 	__asm__ __volatile__(APM_DO_ZERO_SEGS
+ 		"pushl %%edi\n\t"
+ 		"pushl %%ebp\n\t"
+-		"lcall *%%cs:apm_bios_entry\n\t"
++		"lcall *%%ss:apm_bios_entry\n\t"
+ 		"setc %%bl\n\t"
+ 		"popl %%ebp\n\t"
+ 		"popl %%edi\n\t"
+diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
+index b17f4f4..7a16182 100644
+--- a/arch/x86/include/asm/atomic.h
++++ b/arch/x86/include/asm/atomic.h
+@@ -23,7 +23,18 @@
+  */
+ static inline int atomic_read(const atomic_t *v)
+ {
+-	return (*(volatile int *)&(v)->counter);
++	return (*(volatile const int *)&(v)->counter);
++}
++
++/**
++ * atomic_read_unchecked - read atomic variable
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically reads the value of @v.
++ */
++static inline int __intentional_overflow(-1) atomic_read_unchecked(const atomic_unchecked_t *v)
++{
++	return (*(volatile const int *)&(v)->counter);
+ }
+ 
+ /**
+@@ -39,6 +50,18 @@ static inline void atomic_set(atomic_t *v, int i)
+ }
+ 
+ /**
++ * atomic_set_unchecked - set atomic variable
++ * @v: pointer of type atomic_unchecked_t
++ * @i: required value
++ *
++ * Atomically sets the value of @v to @i.
++ */
++static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i)
++{
++	v->counter = i;
++}
++
++/**
+  * atomic_add - add integer to atomic variable
+  * @i: integer value to add
+  * @v: pointer of type atomic_t
+@@ -47,7 +70,29 @@ static inline void atomic_set(atomic_t *v, int i)
+  */
+ static inline void atomic_add(int i, atomic_t *v)
+ {
+-	asm volatile(LOCK_PREFIX "addl %1,%0"
++	asm volatile(LOCK_PREFIX "addl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "subl %1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (v->counter)
++		     : "ir" (i));
++}
++
++/**
++ * atomic_add_unchecked - add integer to atomic variable
++ * @i: integer value to add
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically adds @i to @v.
++ */
++static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "addl %1,%0\n"
+ 		     : "+m" (v->counter)
+ 		     : "ir" (i));
+ }
+@@ -61,7 +106,29 @@ static inline void atomic_add(int i, atomic_t *v)
+  */
+ static inline void atomic_sub(int i, atomic_t *v)
+ {
+-	asm volatile(LOCK_PREFIX "subl %1,%0"
++	asm volatile(LOCK_PREFIX "subl %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "addl %1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (v->counter)
++		     : "ir" (i));
++}
++
++/**
++ * atomic_sub_unchecked - subtract integer from atomic variable
++ * @i: integer value to subtract
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically subtracts @i from @v.
++ */
++static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "subl %1,%0\n"
+ 		     : "+m" (v->counter)
+ 		     : "ir" (i));
+ }
+@@ -77,7 +144,7 @@ static inline void atomic_sub(int i, atomic_t *v)
+  */
+ static inline int atomic_sub_and_test(int i, atomic_t *v)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e");
++	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", LOCK_PREFIX "addl",  v->counter, "er", i, "%0", "e");
+ }
+ 
+ /**
+@@ -88,7 +155,27 @@ static inline int atomic_sub_and_test(int i, atomic_t *v)
+  */
+ static inline void atomic_inc(atomic_t *v)
+ {
+-	asm volatile(LOCK_PREFIX "incl %0"
++	asm volatile(LOCK_PREFIX "incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "decl %0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (v->counter));
++}
++
++/**
++ * atomic_inc_unchecked - increment atomic variable
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically increments @v by 1.
++ */
++static inline void atomic_inc_unchecked(atomic_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "incl %0\n"
+ 		     : "+m" (v->counter));
+ }
+ 
+@@ -100,7 +187,27 @@ static inline void atomic_inc(atomic_t *v)
+  */
+ static inline void atomic_dec(atomic_t *v)
+ {
+-	asm volatile(LOCK_PREFIX "decl %0"
++	asm volatile(LOCK_PREFIX "decl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "incl %0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (v->counter));
++}
++
++/**
++ * atomic_dec_unchecked - decrement atomic variable
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically decrements @v by 1.
++ */
++static inline void atomic_dec_unchecked(atomic_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "decl %0\n"
+ 		     : "+m" (v->counter));
+ }
+ 
+@@ -114,7 +221,7 @@ static inline void atomic_dec(atomic_t *v)
+  */
+ static inline int atomic_dec_and_test(atomic_t *v)
+ {
+-	GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", "e");
++	GEN_UNARY_RMWcc(LOCK_PREFIX "decl", LOCK_PREFIX "incl", v->counter, "%0", "e");
+ }
+ 
+ /**
+@@ -127,7 +234,20 @@ static inline int atomic_dec_and_test(atomic_t *v)
+  */
+ static inline int atomic_inc_and_test(atomic_t *v)
+ {
+-	GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", "e");
++	GEN_UNARY_RMWcc(LOCK_PREFIX "incl", LOCK_PREFIX "decl", v->counter, "%0", "e");
++}
++
++/**
++ * atomic_inc_and_test_unchecked - increment and test
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically increments @v by 1
++ * and returns true if the result is zero, or false for all
++ * other cases.
++ */
++static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v)
++{
++	GEN_UNARY_RMWcc_unchecked(LOCK_PREFIX "incl", v->counter, "%0", "e");
+ }
+ 
+ /**
+@@ -141,7 +261,7 @@ static inline int atomic_inc_and_test(atomic_t *v)
+  */
+ static inline int atomic_add_negative(int i, atomic_t *v)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s");
++	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", LOCK_PREFIX "subl", v->counter, "er", i, "%0", "s");
+ }
+ 
+ /**
+@@ -151,7 +271,19 @@ static inline int atomic_add_negative(int i, atomic_t *v)
+  *
+  * Atomically adds @i to @v and returns @i + @v
+  */
+-static inline int atomic_add_return(int i, atomic_t *v)
++static inline int __intentional_overflow(-1) atomic_add_return(int i, atomic_t *v)
++{
++	return i + xadd_check_overflow(&v->counter, i);
++}
++
++/**
++ * atomic_add_return_unchecked - add integer and return
++ * @i: integer value to add
++ * @v: pointer of type atomic_unchecked_t
++ *
++ * Atomically adds @i to @v and returns @i + @v
++ */
++static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v)
+ {
+ 	return i + xadd(&v->counter, i);
+ }
+@@ -163,15 +295,24 @@ static inline int atomic_add_return(int i, atomic_t *v)
+  *
+  * Atomically subtracts @i from @v and returns @v - @i
+  */
+-static inline int atomic_sub_return(int i, atomic_t *v)
++static inline int __intentional_overflow(-1) atomic_sub_return(int i, atomic_t *v)
+ {
+ 	return atomic_add_return(-i, v);
+ }
+ 
+ #define atomic_inc_return(v)  (atomic_add_return(1, v))
++static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v)
++{
++	return atomic_add_return_unchecked(1, v);
++}
+ #define atomic_dec_return(v)  (atomic_sub_return(1, v))
+ 
+-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
++static inline int __intentional_overflow(-1) atomic_cmpxchg(atomic_t *v, int old, int new)
++{
++	return cmpxchg(&v->counter, old, new);
++}
++
++static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new)
+ {
+ 	return cmpxchg(&v->counter, old, new);
+ }
+@@ -181,6 +322,11 @@ static inline int atomic_xchg(atomic_t *v, int new)
+ 	return xchg(&v->counter, new);
+ }
+ 
++static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new)
++{
++	return xchg(&v->counter, new);
++}
++
+ /**
+  * __atomic_add_unless - add unless the number is already a given value
+  * @v: pointer of type atomic_t
+@@ -190,14 +336,27 @@ static inline int atomic_xchg(atomic_t *v, int new)
+  * Atomically adds @a to @v, so long as @v was not already @u.
+  * Returns the old value of @v.
+  */
+-static inline int __atomic_add_unless(atomic_t *v, int a, int u)
++static inline int __intentional_overflow(-1) __atomic_add_unless(atomic_t *v, int a, int u)
+ {
+-	int c, old;
++	int c, old, new;
+ 	c = atomic_read(v);
+ 	for (;;) {
+-		if (unlikely(c == (u)))
++		if (unlikely(c == u))
+ 			break;
+-		old = atomic_cmpxchg((v), c, c + (a));
++
++		asm volatile("addl %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++			     "jno 0f\n"
++			     "subl %2,%0\n"
++			     "int $4\n0:\n"
++			     _ASM_EXTABLE(0b, 0b)
++#endif
++
++			     : "=r" (new)
++			     : "0" (c), "ir" (a));
++
++		old = atomic_cmpxchg(v, c, new);
+ 		if (likely(old == c))
+ 			break;
+ 		c = old;
+@@ -206,6 +365,49 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+ }
+ 
+ /**
++ * atomic_inc_not_zero_hint - increment if not null
++ * @v: pointer of type atomic_t
++ * @hint: probable value of the atomic before the increment
++ *
++ * This version of atomic_inc_not_zero() gives a hint of probable
++ * value of the atomic. This helps processor to not read the memory
++ * before doing the atomic read/modify/write cycle, lowering
++ * number of bus transactions on some arches.
++ *
++ * Returns: 0 if increment was not done, 1 otherwise.
++ */
++#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint
++static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
++{
++	int val, c = hint, new;
++
++	/* sanity test, should be removed by compiler if hint is a constant */
++	if (!hint)
++		return __atomic_add_unless(v, 1, 0);
++
++	do {
++		asm volatile("incl %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++			     "jno 0f\n"
++			     "decl %0\n"
++			     "int $4\n0:\n"
++			     _ASM_EXTABLE(0b, 0b)
++#endif
++
++			     : "=r" (new)
++			     : "0" (c));
++
++		val = atomic_cmpxchg(v, c, new);
++		if (val == c)
++			return 1;
++		c = val;
++	} while (c);
++
++	return 0;
++}
++
++/**
+  * atomic_inc_short - increment of a short integer
+  * @v: pointer to type int
+  *
+@@ -234,14 +436,37 @@ static inline void atomic_or_long(unsigned long *v1, unsigned long v2)
+ #endif
+ 
+ /* These are x86-specific, used by some header files */
+-#define atomic_clear_mask(mask, addr)				\
+-	asm volatile(LOCK_PREFIX "andl %0,%1"			\
+-		     : : "r" (~(mask)), "m" (*(addr)) : "memory")
++static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
++{
++	asm volatile(LOCK_PREFIX "andl %1,%0"
++		     : "+m" (v->counter)
++		     : "r" (~(mask))
++		     : "memory");
++}
+ 
+-#define atomic_set_mask(mask, addr)				\
+-	asm volatile(LOCK_PREFIX "orl %0,%1"			\
+-		     : : "r" ((unsigned)(mask)), "m" (*(addr))	\
+-		     : "memory")
++static inline void atomic_clear_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "andl %1,%0"
++		     : "+m" (v->counter)
++		     : "r" (~(mask))
++		     : "memory");
++}
++
++static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
++{
++	asm volatile(LOCK_PREFIX "orl %1,%0"
++		     : "+m" (v->counter)
++		     : "r" (mask)
++		     : "memory");
++}
++
++static inline void atomic_set_mask_unchecked(unsigned int mask, atomic_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "orl %1,%0"
++		     : "+m" (v->counter)
++		     : "r" (mask)
++		     : "memory");
++}
+ 
+ /* Atomic operations are already serializing on x86 */
+ #define smp_mb__before_atomic_dec()	barrier()
+diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
+index b154de7..bf18a5a 100644
+--- a/arch/x86/include/asm/atomic64_32.h
++++ b/arch/x86/include/asm/atomic64_32.h
+@@ -12,6 +12,14 @@ typedef struct {
+ 	u64 __aligned(8) counter;
+ } atomic64_t;
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++typedef struct {
++	u64 __aligned(8) counter;
++} atomic64_unchecked_t;
++#else
++typedef atomic64_t atomic64_unchecked_t;
++#endif
++
+ #define ATOMIC64_INIT(val)	{ (val) }
+ 
+ #define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
+@@ -37,21 +45,31 @@ typedef struct {
+ 	ATOMIC64_DECL_ONE(sym##_386)
+ 
+ ATOMIC64_DECL_ONE(add_386);
++ATOMIC64_DECL_ONE(add_unchecked_386);
+ ATOMIC64_DECL_ONE(sub_386);
++ATOMIC64_DECL_ONE(sub_unchecked_386);
+ ATOMIC64_DECL_ONE(inc_386);
++ATOMIC64_DECL_ONE(inc_unchecked_386);
+ ATOMIC64_DECL_ONE(dec_386);
++ATOMIC64_DECL_ONE(dec_unchecked_386);
+ #endif
+ 
+ #define alternative_atomic64(f, out, in...) \
+ 	__alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
+ 
+ ATOMIC64_DECL(read);
++ATOMIC64_DECL(read_unchecked);
+ ATOMIC64_DECL(set);
++ATOMIC64_DECL(set_unchecked);
+ ATOMIC64_DECL(xchg);
+ ATOMIC64_DECL(add_return);
++ATOMIC64_DECL(add_return_unchecked);
+ ATOMIC64_DECL(sub_return);
++ATOMIC64_DECL(sub_return_unchecked);
+ ATOMIC64_DECL(inc_return);
++ATOMIC64_DECL(inc_return_unchecked);
+ ATOMIC64_DECL(dec_return);
++ATOMIC64_DECL(dec_return_unchecked);
+ ATOMIC64_DECL(dec_if_positive);
+ ATOMIC64_DECL(inc_not_zero);
+ ATOMIC64_DECL(add_unless);
+@@ -77,6 +95,21 @@ static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n
+ }
+ 
+ /**
++ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable
++ * @p: pointer to type atomic64_unchecked_t
++ * @o: expected value
++ * @n: new value
++ *
++ * Atomically sets @v to @n if it was equal to @o and returns
++ * the old value.
++ */
++
++static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n)
++{
++	return cmpxchg64(&v->counter, o, n);
++}
++
++/**
+  * atomic64_xchg - xchg atomic64 variable
+  * @v: pointer to type atomic64_t
+  * @n: value to assign
+@@ -112,6 +145,22 @@ static inline void atomic64_set(atomic64_t *v, long long i)
+ }
+ 
+ /**
++ * atomic64_set_unchecked - set atomic64 variable
++ * @v: pointer to type atomic64_unchecked_t
++ * @n: value to assign
++ *
++ * Atomically sets the value of @v to @n.
++ */
++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i)
++{
++	unsigned high = (unsigned)(i >> 32);
++	unsigned low = (unsigned)i;
++	alternative_atomic64(set, /* no output */,
++			     "S" (v), "b" (low), "c" (high)
++			     : "eax", "edx", "memory");
++}
++
++/**
+  * atomic64_read - read atomic64 variable
+  * @v: pointer to type atomic64_t
+  *
+@@ -125,6 +174,19 @@ static inline long long atomic64_read(const atomic64_t *v)
+  }
+ 
+ /**
++ * atomic64_read_unchecked - read atomic64 variable
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically reads the value of @v and returns it.
++ */
++static inline long long __intentional_overflow(-1) atomic64_read_unchecked(atomic64_unchecked_t *v)
++{
++	long long r;
++	alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
++	return r;
++ }
++
++/**
+  * atomic64_add_return - add and return
+  * @i: integer value to add
+  * @v: pointer to type atomic64_t
+@@ -139,6 +201,21 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
+ 	return i;
+ }
+ 
++/**
++ * atomic64_add_return_unchecked - add and return
++ * @i: integer value to add
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically adds @i to @v and returns @i + *@v
++ */
++static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v)
++{
++	alternative_atomic64(add_return_unchecked,
++			     ASM_OUTPUT2("+A" (i), "+c" (v)),
++			     ASM_NO_INPUT_CLOBBER("memory"));
++	return i;
++}
++
+ /*
+  * Other variants with different arithmetic operators:
+  */
+@@ -158,6 +235,14 @@ static inline long long atomic64_inc_return(atomic64_t *v)
+ 	return a;
+ }
+ 
++static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
++{
++	long long a;
++	alternative_atomic64(inc_return_unchecked, "=&A" (a),
++			     "S" (v) : "memory", "ecx");
++	return a;
++}
++
+ static inline long long atomic64_dec_return(atomic64_t *v)
+ {
+ 	long long a;
+@@ -182,6 +267,21 @@ static inline long long atomic64_add(long long i, atomic64_t *v)
+ }
+ 
+ /**
++ * atomic64_add_unchecked - add integer to atomic64 variable
++ * @i: integer value to add
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically adds @i to @v.
++ */
++static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v)
++{
++	__alternative_atomic64(add_unchecked, add_return_unchecked,
++			       ASM_OUTPUT2("+A" (i), "+c" (v)),
++			       ASM_NO_INPUT_CLOBBER("memory"));
++	return i;
++}
++
++/**
+  * atomic64_sub - subtract the atomic64 variable
+  * @i: integer value to subtract
+  * @v: pointer to type atomic64_t
+diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
+index 46e9052..ae45136 100644
+--- a/arch/x86/include/asm/atomic64_64.h
++++ b/arch/x86/include/asm/atomic64_64.h
+@@ -18,7 +18,19 @@
+  */
+ static inline long atomic64_read(const atomic64_t *v)
+ {
+-	return (*(volatile long *)&(v)->counter);
++	return (*(volatile const long *)&(v)->counter);
++}
++
++/**
++ * atomic64_read_unchecked - read atomic64 variable
++ * @v: pointer of type atomic64_unchecked_t
++ *
++ * Atomically reads the value of @v.
++ * Doesn't imply a read memory barrier.
++ */
++static inline long __intentional_overflow(-1) atomic64_read_unchecked(const atomic64_unchecked_t *v)
++{
++	return (*(volatile const long *)&(v)->counter);
+ }
+ 
+ /**
+@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64_t *v, long i)
+ }
+ 
+ /**
++ * atomic64_set_unchecked - set atomic64 variable
++ * @v: pointer to type atomic64_unchecked_t
++ * @i: required value
++ *
++ * Atomically sets the value of @v to @i.
++ */
++static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i)
++{
++	v->counter = i;
++}
++
++/**
+  * atomic64_add - add integer to atomic64 variable
+  * @i: integer value to add
+  * @v: pointer to type atomic64_t
+@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64_t *v, long i)
+  */
+ static inline void atomic64_add(long i, atomic64_t *v)
+ {
++	asm volatile(LOCK_PREFIX "addq %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "subq %1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "=m" (v->counter)
++		     : "er" (i), "m" (v->counter));
++}
++
++/**
++ * atomic64_add_unchecked - add integer to atomic64 variable
++ * @i: integer value to add
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically adds @i to @v.
++ */
++static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v)
++{
+ 	asm volatile(LOCK_PREFIX "addq %1,%0"
+ 		     : "=m" (v->counter)
+ 		     : "er" (i), "m" (v->counter));
+@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, atomic64_t *v)
+  */
+ static inline void atomic64_sub(long i, atomic64_t *v)
+ {
+-	asm volatile(LOCK_PREFIX "subq %1,%0"
++	asm volatile(LOCK_PREFIX "subq %1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "addq %1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "=m" (v->counter)
++		     : "er" (i), "m" (v->counter));
++}
++
++/**
++ * atomic64_sub_unchecked - subtract the atomic64 variable
++ * @i: integer value to subtract
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically subtracts @i from @v.
++ */
++static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "subq %1,%0\n"
+ 		     : "=m" (v->counter)
+ 		     : "er" (i), "m" (v->counter));
+ }
+@@ -72,7 +140,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
+  */
+ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e");
++	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", LOCK_PREFIX "addq", v->counter, "er", i, "%0", "e");
+ }
+ 
+ /**
+@@ -83,6 +151,27 @@ static inline int atomic64_sub_and_test(long i, atomic64_t *v)
+  */
+ static inline void atomic64_inc(atomic64_t *v)
+ {
++	asm volatile(LOCK_PREFIX "incq %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "decq %0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "=m" (v->counter)
++		     : "m" (v->counter));
++}
++
++/**
++ * atomic64_inc_unchecked - increment atomic64 variable
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically increments @v by 1.
++ */
++static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v)
++{
+ 	asm volatile(LOCK_PREFIX "incq %0"
+ 		     : "=m" (v->counter)
+ 		     : "m" (v->counter));
+@@ -96,7 +185,28 @@ static inline void atomic64_inc(atomic64_t *v)
+  */
+ static inline void atomic64_dec(atomic64_t *v)
+ {
+-	asm volatile(LOCK_PREFIX "decq %0"
++	asm volatile(LOCK_PREFIX "decq %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX "incq %0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "=m" (v->counter)
++		     : "m" (v->counter));
++}
++
++/**
++ * atomic64_dec_unchecked - decrement atomic64 variable
++ * @v: pointer to type atomic64_t
++ *
++ * Atomically decrements @v by 1.
++ */
++static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v)
++{
++	asm volatile(LOCK_PREFIX "decq %0\n"
+ 		     : "=m" (v->counter)
+ 		     : "m" (v->counter));
+ }
+@@ -111,7 +221,7 @@ static inline void atomic64_dec(atomic64_t *v)
+  */
+ static inline int atomic64_dec_and_test(atomic64_t *v)
+ {
+-	GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", "e");
++	GEN_UNARY_RMWcc(LOCK_PREFIX "decq", LOCK_PREFIX "incq", v->counter, "%0", "e");
+ }
+ 
+ /**
+@@ -124,7 +234,7 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
+  */
+ static inline int atomic64_inc_and_test(atomic64_t *v)
+ {
+-	GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", "e");
++	GEN_UNARY_RMWcc(LOCK_PREFIX "incq", LOCK_PREFIX "decq", v->counter, "%0", "e");
+ }
+ 
+ /**
+@@ -138,7 +248,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
+  */
+ static inline int atomic64_add_negative(long i, atomic64_t *v)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s");
++	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", LOCK_PREFIX "subq",  v->counter, "er", i, "%0", "s");
+ }
+ 
+ /**
+@@ -150,6 +260,18 @@ static inline int atomic64_add_negative(long i, atomic64_t *v)
+  */
+ static inline long atomic64_add_return(long i, atomic64_t *v)
+ {
++	return i + xadd_check_overflow(&v->counter, i);
++}
++
++/**
++ * atomic64_add_return_unchecked - add and return
++ * @i: integer value to add
++ * @v: pointer to type atomic64_unchecked_t
++ *
++ * Atomically adds @i to @v and returns @i + @v
++ */
++static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v)
++{
+ 	return i + xadd(&v->counter, i);
+ }
+ 
+@@ -159,6 +281,10 @@ static inline long atomic64_sub_return(long i, atomic64_t *v)
+ }
+ 
+ #define atomic64_inc_return(v)  (atomic64_add_return(1, (v)))
++static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v)
++{
++	return atomic64_add_return_unchecked(1, v);
++}
+ #define atomic64_dec_return(v)  (atomic64_sub_return(1, (v)))
+ 
+ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
+@@ -166,6 +292,11 @@ static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
+ 	return cmpxchg(&v->counter, old, new);
+ }
+ 
++static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new)
++{
++	return cmpxchg(&v->counter, old, new);
++}
++
+ static inline long atomic64_xchg(atomic64_t *v, long new)
+ {
+ 	return xchg(&v->counter, new);
+@@ -182,17 +313,30 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
+  */
+ static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
+ {
+-	long c, old;
++	long c, old, new;
+ 	c = atomic64_read(v);
+ 	for (;;) {
+-		if (unlikely(c == (u)))
++		if (unlikely(c == u))
+ 			break;
+-		old = atomic64_cmpxchg((v), c, c + (a));
++
++		asm volatile("add %2,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++			     "jno 0f\n"
++			     "sub %2,%0\n"
++			     "int $4\n0:\n"
++			     _ASM_EXTABLE(0b, 0b)
++#endif
++
++			     : "=r" (new)
++			     : "0" (c), "ir" (a));
++
++		old = atomic64_cmpxchg(v, c, new);
+ 		if (likely(old == c))
+ 			break;
+ 		c = old;
+ 	}
+-	return c != (u);
++	return c != u;
+ }
+ 
+ #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
+index 69bbb48..32517fe 100644
+--- a/arch/x86/include/asm/barrier.h
++++ b/arch/x86/include/asm/barrier.h
+@@ -107,7 +107,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	smp_mb();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+@@ -124,7 +124,7 @@ do {									\
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	barrier();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
+index 9fc1af7..98cab0b 100644
+--- a/arch/x86/include/asm/bitops.h
++++ b/arch/x86/include/asm/bitops.h
+@@ -49,7 +49,7 @@
+  * a mask operation on a byte.
+  */
+ #define IS_IMMEDIATE(nr)		(__builtin_constant_p(nr))
+-#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((void *)(addr) + ((nr)>>3))
++#define CONST_MASK_ADDR(nr, addr)	BITOP_ADDR((volatile void *)(addr) + ((nr)>>3))
+ #define CONST_MASK(nr)			(1 << ((nr) & 7))
+ 
+ /**
+@@ -205,7 +205,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr)
+  */
+ static inline int test_and_set_bit(long nr, volatile unsigned long *addr)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
++	GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
+ }
+ 
+ /**
+@@ -251,7 +251,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr)
+  */
+ static inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
++	GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
+ }
+ 
+ /**
+@@ -304,7 +304,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr)
+  */
+ static inline int test_and_change_bit(long nr, volatile unsigned long *addr)
+ {
+-	GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
++	GEN_BINARY_RMWcc_unchecked(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
+ }
+ 
+ static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
+@@ -345,7 +345,7 @@ static int test_bit(int nr, const volatile unsigned long *addr);
+  *
+  * Undefined if no bit exists, so code should check against 0 first.
+  */
+-static inline unsigned long __ffs(unsigned long word)
++static inline unsigned long __intentional_overflow(-1) __ffs(unsigned long word)
+ {
+ 	asm("rep; bsf %1,%0"
+ 		: "=r" (word)
+@@ -359,7 +359,7 @@ static inline unsigned long __ffs(unsigned long word)
+  *
+  * Undefined if no zero exists, so code should check against ~0UL first.
+  */
+-static inline unsigned long ffz(unsigned long word)
++static inline unsigned long __intentional_overflow(-1) ffz(unsigned long word)
+ {
+ 	asm("rep; bsf %1,%0"
+ 		: "=r" (word)
+@@ -373,7 +373,7 @@ static inline unsigned long ffz(unsigned long word)
+  *
+  * Undefined if no set bit exists, so code should check against 0 first.
+  */
+-static inline unsigned long __fls(unsigned long word)
++static inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
+ {
+ 	asm("bsr %1,%0"
+ 	    : "=r" (word)
+@@ -436,7 +436,7 @@ static inline int ffs(int x)
+  * set bit if value is nonzero. The last (most significant) bit is
+  * at position 32.
+  */
+-static inline int fls(int x)
++static inline int __intentional_overflow(-1) fls(int x)
+ {
+ 	int r;
+ 
+@@ -478,7 +478,7 @@ static inline int fls(int x)
+  * at position 64.
+  */
+ #ifdef CONFIG_X86_64
+-static __always_inline int fls64(__u64 x)
++static __always_inline __intentional_overflow(-1) int fls64(__u64 x)
+ {
+ 	int bitpos = -1;
+ 	/*
+@@ -499,8 +499,6 @@ static __always_inline int fls64(__u64 x)
+ 
+ #include <asm-generic/bitops/sched.h>
+ 
+-#define ARCH_HAS_FAST_MULTIPLIER 1
+-
+ #include <asm/arch_hweight.h>
+ 
+ #include <asm-generic/bitops/const_hweight.h>
+diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
+index 4fa687a..60f2d39 100644
+--- a/arch/x86/include/asm/boot.h
++++ b/arch/x86/include/asm/boot.h
+@@ -6,10 +6,15 @@
+ #include <uapi/asm/boot.h>
+ 
+ /* Physical address where kernel should be loaded. */
+-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
++#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
+ 				+ (CONFIG_PHYSICAL_ALIGN - 1)) \
+ 				& ~(CONFIG_PHYSICAL_ALIGN - 1))
+ 
++#ifndef __ASSEMBLY__
++extern unsigned char __LOAD_PHYSICAL_ADDR[];
++#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR)
++#endif
++
+ /* Minimum kernel alignment, as a power of two */
+ #ifdef CONFIG_X86_64
+ #define MIN_KERNEL_ALIGN_LG2	PMD_SHIFT
+diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
+index 48f99f1..d78ebf9 100644
+--- a/arch/x86/include/asm/cache.h
++++ b/arch/x86/include/asm/cache.h
+@@ -5,12 +5,13 @@
+ 
+ /* L1 cache line size */
+ #define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)
+-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_BYTES	(_AC(1,UL) << L1_CACHE_SHIFT)
+ 
+ #define __read_mostly __attribute__((__section__(".data..read_mostly")))
++#define __read_only __attribute__((__section__(".data..read_only")))
+ 
+ #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
+-#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
++#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT)
+ 
+ #ifdef CONFIG_X86_VSMP
+ #ifdef CONFIG_SMP
+diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
+index 9863ee3..4a1f8e1 100644
+--- a/arch/x86/include/asm/cacheflush.h
++++ b/arch/x86/include/asm/cacheflush.h
+@@ -27,7 +27,7 @@ static inline unsigned long get_page_memtype(struct page *pg)
+ 	unsigned long pg_flags = pg->flags & _PGMT_MASK;
+ 
+ 	if (pg_flags == _PGMT_DEFAULT)
+-		return -1;
++		return ~0UL;
+ 	else if (pg_flags == _PGMT_WC)
+ 		return _PAGE_CACHE_WC;
+ 	else if (pg_flags == _PGMT_UC_MINUS)
+diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
+index cb4c73b..c473c29 100644
+--- a/arch/x86/include/asm/calling.h
++++ b/arch/x86/include/asm/calling.h
+@@ -82,103 +82,113 @@ For 32-bit we have the following conventions - kernel is built with
+ #define RSP		152
+ #define SS		160
+ 
+-#define ARGOFFSET	R11
+-#define SWFRAME		ORIG_RAX
++#define ARGOFFSET	R15
+ 
+ 	.macro SAVE_ARGS addskip=0, save_rcx=1, save_r891011=1
+-	subq  $9*8+\addskip, %rsp
+-	CFI_ADJUST_CFA_OFFSET	9*8+\addskip
+-	movq_cfi rdi, 8*8
+-	movq_cfi rsi, 7*8
+-	movq_cfi rdx, 6*8
++	subq  $ORIG_RAX-ARGOFFSET+\addskip, %rsp
++	CFI_ADJUST_CFA_OFFSET	ORIG_RAX-ARGOFFSET+\addskip
++	movq_cfi rdi, RDI
++	movq_cfi rsi, RSI
++	movq_cfi rdx, RDX
+ 
+ 	.if \save_rcx
+-	movq_cfi rcx, 5*8
++	movq_cfi rcx, RCX
+ 	.endif
+ 
+-	movq_cfi rax, 4*8
++	movq_cfi rax, RAX
+ 
+ 	.if \save_r891011
+-	movq_cfi r8,  3*8
+-	movq_cfi r9,  2*8
+-	movq_cfi r10, 1*8
+-	movq_cfi r11, 0*8
++	movq_cfi r8,  R8
++	movq_cfi r9,  R9
++	movq_cfi r10, R10
++	movq_cfi r11, R11
+ 	.endif
+ 
++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
++	movq_cfi r12, R12
++#endif
++
+ 	.endm
+ 
+-#define ARG_SKIP	(9*8)
++#define ARG_SKIP	ORIG_RAX
+ 
+ 	.macro RESTORE_ARGS rstor_rax=1, addskip=0, rstor_rcx=1, rstor_r11=1, \
+ 			    rstor_r8910=1, rstor_rdx=1
++
++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
++	movq_cfi_restore R12, r12
++#endif
++
+ 	.if \rstor_r11
+-	movq_cfi_restore 0*8, r11
++	movq_cfi_restore R11, r11
+ 	.endif
+ 
+ 	.if \rstor_r8910
+-	movq_cfi_restore 1*8, r10
+-	movq_cfi_restore 2*8, r9
+-	movq_cfi_restore 3*8, r8
++	movq_cfi_restore R10, r10
++	movq_cfi_restore R9, r9
++	movq_cfi_restore R8, r8
+ 	.endif
+ 
+ 	.if \rstor_rax
+-	movq_cfi_restore 4*8, rax
++	movq_cfi_restore RAX, rax
+ 	.endif
+ 
+ 	.if \rstor_rcx
+-	movq_cfi_restore 5*8, rcx
++	movq_cfi_restore RCX, rcx
+ 	.endif
+ 
+ 	.if \rstor_rdx
+-	movq_cfi_restore 6*8, rdx
++	movq_cfi_restore RDX, rdx
+ 	.endif
+ 
+-	movq_cfi_restore 7*8, rsi
+-	movq_cfi_restore 8*8, rdi
++	movq_cfi_restore RSI, rsi
++	movq_cfi_restore RDI, rdi
+ 
+-	.if ARG_SKIP+\addskip > 0
+-	addq $ARG_SKIP+\addskip, %rsp
+-	CFI_ADJUST_CFA_OFFSET	-(ARG_SKIP+\addskip)
++	.if ORIG_RAX+\addskip > 0
++	addq $ORIG_RAX+\addskip, %rsp
++	CFI_ADJUST_CFA_OFFSET	-(ORIG_RAX+\addskip)
+ 	.endif
+ 	.endm
+ 
+-	.macro LOAD_ARGS offset, skiprax=0
+-	movq \offset(%rsp),    %r11
+-	movq \offset+8(%rsp),  %r10
+-	movq \offset+16(%rsp), %r9
+-	movq \offset+24(%rsp), %r8
+-	movq \offset+40(%rsp), %rcx
+-	movq \offset+48(%rsp), %rdx
+-	movq \offset+56(%rsp), %rsi
+-	movq \offset+64(%rsp), %rdi
++	.macro LOAD_ARGS skiprax=0
++	movq R11(%rsp),    %r11
++	movq R10(%rsp),  %r10
++	movq R9(%rsp), %r9
++	movq R8(%rsp), %r8
++	movq RCX(%rsp), %rcx
++	movq RDX(%rsp), %rdx
++	movq RSI(%rsp), %rsi
++	movq RDI(%rsp), %rdi
+ 	.if \skiprax
+ 	.else
+-	movq \offset+72(%rsp), %rax
++	movq RAX(%rsp), %rax
+ 	.endif
+ 	.endm
+ 
+-#define REST_SKIP	(6*8)
+-
+ 	.macro SAVE_REST
+-	subq $REST_SKIP, %rsp
+-	CFI_ADJUST_CFA_OFFSET	REST_SKIP
+-	movq_cfi rbx, 5*8
+-	movq_cfi rbp, 4*8
+-	movq_cfi r12, 3*8
+-	movq_cfi r13, 2*8
+-	movq_cfi r14, 1*8
+-	movq_cfi r15, 0*8
++	movq_cfi rbx, RBX
++	movq_cfi rbp, RBP
++
++#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
++	movq_cfi r12, R12
++#endif
++
++	movq_cfi r13, R13
++	movq_cfi r14, R14
++	movq_cfi r15, R15
+ 	.endm
+ 
+ 	.macro RESTORE_REST
+-	movq_cfi_restore 0*8, r15
+-	movq_cfi_restore 1*8, r14
+-	movq_cfi_restore 2*8, r13
+-	movq_cfi_restore 3*8, r12
+-	movq_cfi_restore 4*8, rbp
+-	movq_cfi_restore 5*8, rbx
+-	addq $REST_SKIP, %rsp
+-	CFI_ADJUST_CFA_OFFSET	-(REST_SKIP)
++	movq_cfi_restore R15, r15
++	movq_cfi_restore R14, r14
++	movq_cfi_restore R13, r13
++
++#ifndef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
++	movq_cfi_restore R12, r12
++#endif
++
++	movq_cfi_restore RBP, rbp
++	movq_cfi_restore RBX, rbx
+ 	.endm
+ 
+ 	.macro SAVE_ALL
+diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
+index f50de69..2b0a458 100644
+--- a/arch/x86/include/asm/checksum_32.h
++++ b/arch/x86/include/asm/checksum_32.h
+@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
+ 					    int len, __wsum sum,
+ 					    int *src_err_ptr, int *dst_err_ptr);
+ 
++asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst,
++						  int len, __wsum sum,
++						  int *src_err_ptr, int *dst_err_ptr);
++
++asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst,
++						  int len, __wsum sum,
++						  int *src_err_ptr, int *dst_err_ptr);
++
+ /*
+  *	Note: when you get a NULL pointer exception here this means someone
+  *	passed in an incorrect kernel address to one of these functions.
+@@ -53,7 +61,7 @@ static inline __wsum csum_partial_copy_from_user(const void __user *src,
+ 
+ 	might_sleep();
+ 	stac();
+-	ret = csum_partial_copy_generic((__force void *)src, dst,
++	ret = csum_partial_copy_generic_from_user((__force void *)src, dst,
+ 					len, sum, err_ptr, NULL);
+ 	clac();
+ 
+@@ -187,7 +195,7 @@ static inline __wsum csum_and_copy_to_user(const void *src,
+ 	might_sleep();
+ 	if (access_ok(VERIFY_WRITE, dst, len)) {
+ 		stac();
+-		ret = csum_partial_copy_generic(src, (__force void *)dst,
++		ret = csum_partial_copy_generic_to_user(src, (__force void *)dst,
+ 						len, sum, NULL, err_ptr);
+ 		clac();
+ 		return ret;
+diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
+index d47786a..2d8883e 100644
+--- a/arch/x86/include/asm/cmpxchg.h
++++ b/arch/x86/include/asm/cmpxchg.h
+@@ -14,8 +14,12 @@ extern void __cmpxchg_wrong_size(void)
+ 	__compiletime_error("Bad argument size for cmpxchg");
+ extern void __xadd_wrong_size(void)
+ 	__compiletime_error("Bad argument size for xadd");
++extern void __xadd_check_overflow_wrong_size(void)
++	__compiletime_error("Bad argument size for xadd_check_overflow");
+ extern void __add_wrong_size(void)
+ 	__compiletime_error("Bad argument size for add");
++extern void __add_check_overflow_wrong_size(void)
++	__compiletime_error("Bad argument size for add_check_overflow");
+ 
+ /*
+  * Constants for operation sizes. On 32-bit, the 64-bit size it set to
+@@ -67,6 +71,38 @@ extern void __add_wrong_size(void)
+ 		__ret;							\
+ 	})
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++#define __xchg_op_check_overflow(ptr, arg, op, lock)			\
++	({								\
++	        __typeof__ (*(ptr)) __ret = (arg);			\
++		switch (sizeof(*(ptr))) {				\
++		case __X86_CASE_L:					\
++			asm volatile (lock #op "l %0, %1\n"		\
++				      "jno 0f\n"			\
++				      "mov %0,%1\n"			\
++				      "int $4\n0:\n"			\
++				      _ASM_EXTABLE(0b, 0b)		\
++				      : "+r" (__ret), "+m" (*(ptr))	\
++				      : : "memory", "cc");		\
++			break;						\
++		case __X86_CASE_Q:					\
++			asm volatile (lock #op "q %q0, %1\n"		\
++				      "jno 0f\n"			\
++				      "mov %0,%1\n"			\
++				      "int $4\n0:\n"			\
++				      _ASM_EXTABLE(0b, 0b)		\
++				      : "+r" (__ret), "+m" (*(ptr))	\
++				      : : "memory", "cc");		\
++			break;						\
++		default:						\
++			__ ## op ## _check_overflow_wrong_size();	\
++		}							\
++		__ret;							\
++	})
++#else
++#define __xchg_op_check_overflow(ptr, arg, op, lock) __xchg_op(ptr, arg, op, lock)
++#endif
++
+ /*
+  * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
+  * Since this is generally used to protect other memory information, we
+@@ -167,6 +203,9 @@ extern void __add_wrong_size(void)
+ #define xadd_sync(ptr, inc)	__xadd((ptr), (inc), "lock; ")
+ #define xadd_local(ptr, inc)	__xadd((ptr), (inc), "")
+ 
++#define __xadd_check_overflow(ptr, inc, lock)	__xchg_op_check_overflow((ptr), (inc), xadd, lock)
++#define xadd_check_overflow(ptr, inc)		__xadd_check_overflow((ptr), (inc), LOCK_PREFIX)
++
+ #define __add(ptr, inc, lock)						\
+ 	({								\
+ 	        __typeof__ (*(ptr)) __ret = (inc);			\
+diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
+index 59c6c40..5e0b22c 100644
+--- a/arch/x86/include/asm/compat.h
++++ b/arch/x86/include/asm/compat.h
+@@ -41,7 +41,7 @@ typedef s64 __attribute__((aligned(4))) compat_s64;
+ typedef u32		compat_uint_t;
+ typedef u32		compat_ulong_t;
+ typedef u64 __attribute__((aligned(4))) compat_u64;
+-typedef u32		compat_uptr_t;
++typedef u32		__user compat_uptr_t;
+ 
+ struct compat_timespec {
+ 	compat_time_t	tv_sec;
+diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
+index 1717156..14e260a 100644
+--- a/arch/x86/include/asm/cpufeature.h
++++ b/arch/x86/include/asm/cpufeature.h
+@@ -204,7 +204,7 @@
+ #define X86_FEATURE_PAUSEFILTER (8*32+13) /* AMD filtered pause intercept */
+ #define X86_FEATURE_PFTHRESHOLD (8*32+14) /* AMD pause filter threshold */
+ #define X86_FEATURE_VMMCALL	(8*32+15) /* Prefer vmmcall to vmcall */
+-
++#define X86_FEATURE_STRONGUDEREF (8*32+31) /* PaX PCID based strong UDEREF */
+ 
+ /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
+ #define X86_FEATURE_FSGSBASE	(9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
+@@ -212,7 +212,7 @@
+ #define X86_FEATURE_BMI1	(9*32+ 3) /* 1st group bit manipulation extensions */
+ #define X86_FEATURE_HLE		(9*32+ 4) /* Hardware Lock Elision */
+ #define X86_FEATURE_AVX2	(9*32+ 5) /* AVX2 instructions */
+-#define X86_FEATURE_SMEP	(9*32+ 7) /* Supervisor Mode Execution Protection */
++#define X86_FEATURE_SMEP	(9*32+ 7) /* Supervisor Mode Execution Prevention */
+ #define X86_FEATURE_BMI2	(9*32+ 8) /* 2nd group bit manipulation extensions */
+ #define X86_FEATURE_ERMS	(9*32+ 9) /* Enhanced REP MOVSB/STOSB */
+ #define X86_FEATURE_INVPCID	(9*32+10) /* Invalidate Processor Context ID */
+@@ -359,6 +359,7 @@ extern const char * const x86_power_flags[32];
+ #undef  cpu_has_centaur_mcr
+ #define cpu_has_centaur_mcr	0
+ 
++#define cpu_has_pcid		boot_cpu_has(X86_FEATURE_PCID)
+ #endif /* CONFIG_X86_64 */
+ 
+ #if __GNUC__ >= 4
+@@ -411,7 +412,8 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
+ 
+ #ifdef CONFIG_X86_DEBUG_STATIC_CPU_HAS
+ 	t_warn:
+-		warn_pre_alternatives();
++		if (bit != X86_FEATURE_PCID && bit != X86_FEATURE_INVPCID)
++			warn_pre_alternatives();
+ 		return false;
+ #endif
+ 
+@@ -431,7 +433,7 @@ static __always_inline __pure bool __static_cpu_has(u16 bit)
+ 			     ".section .discard,\"aw\",@progbits\n"
+ 			     " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
+ 			     ".previous\n"
+-			     ".section .altinstr_replacement,\"ax\"\n"
++			     ".section .altinstr_replacement,\"a\"\n"
+ 			     "3: movb $1,%0\n"
+ 			     "4:\n"
+ 			     ".previous\n"
+@@ -468,7 +470,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
+ 			 " .byte 2b - 1b\n"		/* src len */
+ 			 " .byte 4f - 3f\n"		/* repl len */
+ 			 ".previous\n"
+-			 ".section .altinstr_replacement,\"ax\"\n"
++			 ".section .altinstr_replacement,\"a\"\n"
+ 			 "3: .byte 0xe9\n .long %l[t_no] - 2b\n"
+ 			 "4:\n"
+ 			 ".previous\n"
+@@ -501,7 +503,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
+ 			     ".section .discard,\"aw\",@progbits\n"
+ 			     " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
+ 			     ".previous\n"
+-			     ".section .altinstr_replacement,\"ax\"\n"
++			     ".section .altinstr_replacement,\"a\"\n"
+ 			     "3: movb $0,%0\n"
+ 			     "4:\n"
+ 			     ".previous\n"
+@@ -515,7 +517,7 @@ static __always_inline __pure bool _static_cpu_has_safe(u16 bit)
+ 			     ".section .discard,\"aw\",@progbits\n"
+ 			     " .byte 0xff + (6f-5f) - (4b-3b)\n" /* size check */
+ 			     ".previous\n"
+-			     ".section .altinstr_replacement,\"ax\"\n"
++			     ".section .altinstr_replacement,\"a\"\n"
+ 			     "5: movb $1,%0\n"
+ 			     "6:\n"
+ 			     ".previous\n"
+diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
+index a94b82e..59ecefa 100644
+--- a/arch/x86/include/asm/desc.h
++++ b/arch/x86/include/asm/desc.h
+@@ -4,6 +4,7 @@
+ #include <asm/desc_defs.h>
+ #include <asm/ldt.h>
+ #include <asm/mmu.h>
++#include <asm/pgtable.h>
+ 
+ #include <linux/smp.h>
+ #include <linux/percpu.h>
+@@ -17,6 +18,7 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
+ 
+ 	desc->type		= (info->read_exec_only ^ 1) << 1;
+ 	desc->type	       |= info->contents << 2;
++	desc->type	       |= info->seg_not_present ^ 1;
+ 
+ 	desc->s			= 1;
+ 	desc->dpl		= 0x3;
+@@ -35,19 +37,14 @@ static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *in
+ }
+ 
+ extern struct desc_ptr idt_descr;
+-extern gate_desc idt_table[];
+-extern struct desc_ptr debug_idt_descr;
+-extern gate_desc debug_idt_table[];
+-
+-struct gdt_page {
+-	struct desc_struct gdt[GDT_ENTRIES];
+-} __attribute__((aligned(PAGE_SIZE)));
+-
+-DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
++extern gate_desc idt_table[IDT_ENTRIES];
++extern const struct desc_ptr debug_idt_descr;
++extern gate_desc debug_idt_table[IDT_ENTRIES];
+ 
++extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)];
+ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
+ {
+-	return per_cpu(gdt_page, cpu).gdt;
++	return cpu_gdt_table[cpu];
+ }
+ 
+ #ifdef CONFIG_X86_64
+@@ -72,8 +69,14 @@ static inline void pack_gate(gate_desc *gate, unsigned char type,
+ 			     unsigned long base, unsigned dpl, unsigned flags,
+ 			     unsigned short seg)
+ {
+-	gate->a = (seg << 16) | (base & 0xffff);
+-	gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8);
++	gate->gate.offset_low	= base;
++	gate->gate.seg		= seg;
++	gate->gate.reserved	= 0;
++	gate->gate.type		= type;
++	gate->gate.s		= 0;
++	gate->gate.dpl		= dpl;
++	gate->gate.p		= 1;
++	gate->gate.offset_high	= base >> 16;
+ }
+ 
+ #endif
+@@ -118,12 +121,16 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
+ 
+ static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
+ {
++	pax_open_kernel();
+ 	memcpy(&idt[entry], gate, sizeof(*gate));
++	pax_close_kernel();
+ }
+ 
+ static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
+ {
++	pax_open_kernel();
+ 	memcpy(&ldt[entry], desc, 8);
++	pax_close_kernel();
+ }
+ 
+ static inline void
+@@ -137,7 +144,9 @@ native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int
+ 	default:	size = sizeof(*gdt);		break;
+ 	}
+ 
++	pax_open_kernel();
+ 	memcpy(&gdt[entry], desc, size);
++	pax_close_kernel();
+ }
+ 
+ static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
+@@ -210,7 +219,9 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
+ 
+ static inline void native_load_tr_desc(void)
+ {
++	pax_open_kernel();
+ 	asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
++	pax_close_kernel();
+ }
+ 
+ static inline void native_load_gdt(const struct desc_ptr *dtr)
+@@ -247,8 +258,10 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
+ 	struct desc_struct *gdt = get_cpu_gdt_table(cpu);
+ 	unsigned int i;
+ 
++	pax_open_kernel();
+ 	for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
+ 		gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
++	pax_close_kernel();
+ }
+ 
+ /* This intentionally ignores lm, since 32-bit apps don't have that field. */
+@@ -295,7 +308,7 @@ static inline void load_LDT(mm_context_t *pc)
+ 	preempt_enable();
+ }
+ 
+-static inline unsigned long get_desc_base(const struct desc_struct *desc)
++static inline unsigned long __intentional_overflow(-1) get_desc_base(const struct desc_struct *desc)
+ {
+ 	return (unsigned)(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
+ }
+@@ -319,7 +332,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
+ }
+ 
+ #ifdef CONFIG_X86_64
+-static inline void set_nmi_gate(int gate, void *addr)
++static inline void set_nmi_gate(int gate, const void *addr)
+ {
+ 	gate_desc s;
+ 
+@@ -329,14 +342,14 @@ static inline void set_nmi_gate(int gate, void *addr)
+ #endif
+ 
+ #ifdef CONFIG_TRACING
+-extern struct desc_ptr trace_idt_descr;
+-extern gate_desc trace_idt_table[];
++extern const struct desc_ptr trace_idt_descr;
++extern gate_desc trace_idt_table[IDT_ENTRIES];
+ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
+ {
+ 	write_idt_entry(trace_idt_table, entry, gate);
+ }
+ 
+-static inline void _trace_set_gate(int gate, unsigned type, void *addr,
++static inline void _trace_set_gate(int gate, unsigned type, const void *addr,
+ 				   unsigned dpl, unsigned ist, unsigned seg)
+ {
+ 	gate_desc s;
+@@ -356,7 +369,7 @@ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
+ #define _trace_set_gate(gate, type, addr, dpl, ist, seg)
+ #endif
+ 
+-static inline void _set_gate(int gate, unsigned type, void *addr,
++static inline void _set_gate(int gate, unsigned type, const void *addr,
+ 			     unsigned dpl, unsigned ist, unsigned seg)
+ {
+ 	gate_desc s;
+@@ -379,9 +392,9 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
+ #define set_intr_gate(n, addr)						\
+ 	do {								\
+ 		BUG_ON((unsigned)n > 0xFF);				\
+-		_set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0,	\
++		_set_gate(n, GATE_INTERRUPT, (const void *)addr, 0, 0,	\
+ 			  __KERNEL_CS);					\
+-		_trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
++		_trace_set_gate(n, GATE_INTERRUPT, (const void *)trace_##addr,\
+ 				0, 0, __KERNEL_CS);			\
+ 	} while (0)
+ 
+@@ -409,19 +422,19 @@ static inline void alloc_system_vector(int vector)
+ /*
+  * This routine sets up an interrupt gate at directory privilege level 3.
+  */
+-static inline void set_system_intr_gate(unsigned int n, void *addr)
++static inline void set_system_intr_gate(unsigned int n, const void *addr)
+ {
+ 	BUG_ON((unsigned)n > 0xFF);
+ 	_set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
+ }
+ 
+-static inline void set_system_trap_gate(unsigned int n, void *addr)
++static inline void set_system_trap_gate(unsigned int n, const void *addr)
+ {
+ 	BUG_ON((unsigned)n > 0xFF);
+ 	_set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
+ }
+ 
+-static inline void set_trap_gate(unsigned int n, void *addr)
++static inline void set_trap_gate(unsigned int n, const void *addr)
+ {
+ 	BUG_ON((unsigned)n > 0xFF);
+ 	_set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
+@@ -430,16 +443,16 @@ static inline void set_trap_gate(unsigned int n, void *addr)
+ static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
+ {
+ 	BUG_ON((unsigned)n > 0xFF);
+-	_set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
++	_set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3));
+ }
+ 
+-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
++static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist)
+ {
+ 	BUG_ON((unsigned)n > 0xFF);
+ 	_set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
+ }
+ 
+-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
++static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist)
+ {
+ 	BUG_ON((unsigned)n > 0xFF);
+ 	_set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
+@@ -511,4 +524,17 @@ static inline void load_current_idt(void)
+ 	else
+ 		load_idt((const struct desc_ptr *)&idt_descr);
+ }
++
++#ifdef CONFIG_X86_32
++static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu)
++{
++	struct desc_struct d;
++
++	if (likely(limit))
++		limit = (limit - 1UL) >> PAGE_SHIFT;
++	pack_descriptor(&d, base, limit, 0xFB, 0xC);
++	write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S);
++}
++#endif
++
+ #endif /* _ASM_X86_DESC_H */
+diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
+index 278441f..b95a174 100644
+--- a/arch/x86/include/asm/desc_defs.h
++++ b/arch/x86/include/asm/desc_defs.h
+@@ -31,6 +31,12 @@ struct desc_struct {
+ 			unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
+ 			unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
+ 		};
++		struct {
++			u16 offset_low;
++			u16 seg;
++			unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1;
++			unsigned offset_high: 16;
++		} gate;
+ 	};
+ } __attribute__((packed));
+ 
+diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
+index ced283a..ffe04cc 100644
+--- a/arch/x86/include/asm/div64.h
++++ b/arch/x86/include/asm/div64.h
+@@ -39,7 +39,7 @@
+ 	__mod;							\
+ })
+ 
+-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
++static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+ {
+ 	union {
+ 		u64 v64;
+diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
+index 01f15b2..5718a82 100644
+--- a/arch/x86/include/asm/elf.h
++++ b/arch/x86/include/asm/elf.h
+@@ -244,7 +244,25 @@ extern int force_personality32;
+    the loader.  We need to make sure that it is out of the way of the program
+    that it will "exec", and that there is sufficient room for the brk.  */
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++#define ELF_ET_DYN_BASE		((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2)
++#else
+ #define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++#ifdef CONFIG_X86_32
++#define PAX_ELF_ET_DYN_BASE	0x10000000UL
++
++#define PAX_DELTA_MMAP_LEN	(current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
++#define PAX_DELTA_STACK_LEN	(current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16)
++#else
++#define PAX_ELF_ET_DYN_BASE	0x400000UL
++
++#define PAX_DELTA_MMAP_LEN	((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
++#define PAX_DELTA_STACK_LEN	((test_thread_flag(TIF_ADDR32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3)
++#endif
++#endif
+ 
+ /* This yields a mask that user programs can use to figure out what
+    instruction set this CPU supports.  This could be done in user space,
+@@ -297,16 +315,12 @@ do {									\
+ 
+ #define ARCH_DLINFO							\
+ do {									\
+-	if (vdso_enabled)						\
+-		NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
+-			    (unsigned long)current->mm->context.vdso);	\
++	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);	\
+ } while (0)
+ 
+ #define ARCH_DLINFO_X32							\
+ do {									\
+-	if (vdso_enabled)						\
+-		NEW_AUX_ENT(AT_SYSINFO_EHDR,				\
+-			    (unsigned long)current->mm->context.vdso);	\
++	NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);	\
+ } while (0)
+ 
+ #define AT_SYSINFO		32
+@@ -321,7 +335,7 @@ else									\
+ 
+ #endif /* !CONFIG_X86_32 */
+ 
+-#define VDSO_CURRENT_BASE	((unsigned long)current->mm->context.vdso)
++#define VDSO_CURRENT_BASE	(current->mm->context.vdso)
+ 
+ #define VDSO_ENTRY							\
+ 	((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
+@@ -337,9 +351,6 @@ extern int x32_setup_additional_pages(struct linux_binprm *bprm,
+ extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
+ #define compat_arch_setup_additional_pages	syscall32_setup_pages
+ 
+-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
+-#define arch_randomize_brk arch_randomize_brk
+-
+ /*
+  * True on X86_32 or when emulating IA32 on X86_64
+  */
+diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
+index 77a99ac..39ff7f5 100644
+--- a/arch/x86/include/asm/emergency-restart.h
++++ b/arch/x86/include/asm/emergency-restart.h
+@@ -1,6 +1,6 @@
+ #ifndef _ASM_X86_EMERGENCY_RESTART_H
+ #define _ASM_X86_EMERGENCY_RESTART_H
+ 
+-extern void machine_emergency_restart(void);
++extern void machine_emergency_restart(void) __noreturn;
+ 
+ #endif /* _ASM_X86_EMERGENCY_RESTART_H */
+diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
+index d3d7469..677ef72 100644
+--- a/arch/x86/include/asm/floppy.h
++++ b/arch/x86/include/asm/floppy.h
+@@ -229,18 +229,18 @@ static struct fd_routine_l {
+ 	int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
+ } fd_routine[] = {
+ 	{
+-		request_dma,
+-		free_dma,
+-		get_dma_residue,
+-		dma_mem_alloc,
+-		hard_dma_setup
++		._request_dma = request_dma,
++		._free_dma = free_dma,
++		._get_dma_residue = get_dma_residue,
++		._dma_mem_alloc = dma_mem_alloc,
++		._dma_setup = hard_dma_setup
+ 	},
+ 	{
+-		vdma_request_dma,
+-		vdma_nop,
+-		vdma_get_dma_residue,
+-		vdma_mem_alloc,
+-		vdma_dma_setup
++		._request_dma = vdma_request_dma,
++		._free_dma = vdma_nop,
++		._get_dma_residue = vdma_get_dma_residue,
++		._dma_mem_alloc = vdma_mem_alloc,
++		._dma_setup = vdma_dma_setup
+ 	}
+ };
+ 
+diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
+index 1ac1c00..58f8e36 100644
+--- a/arch/x86/include/asm/fpu-internal.h
++++ b/arch/x86/include/asm/fpu-internal.h
+@@ -124,8 +124,11 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
+ #define user_insn(insn, output, input...)				\
+ ({									\
+ 	int err;							\
++	pax_open_userland();						\
+ 	asm volatile(ASM_STAC "\n"					\
+-		     "1:" #insn "\n\t"					\
++		     "1:"						\
++		     __copyuser_seg					\
++		     #insn "\n\t"					\
+ 		     "2: " ASM_CLAC "\n"				\
+ 		     ".section .fixup,\"ax\"\n"				\
+ 		     "3:  movl $-1,%[err]\n"				\
+@@ -134,6 +137,7 @@ static inline void sanitize_i387_state(struct task_struct *tsk)
+ 		     _ASM_EXTABLE(1b, 3b)				\
+ 		     : [err] "=r" (err), output				\
+ 		     : "0"(0), input);					\
++	pax_close_userland();						\
+ 	err;								\
+ })
+ 
+@@ -298,7 +302,7 @@ static inline int restore_fpu_checking(struct task_struct *tsk)
+ 			"fnclex\n\t"
+ 			"emms\n\t"
+ 			"fildl %P[addr]"	/* set F?P to defined value */
+-			: : [addr] "m" (tsk->thread.fpu.has_fpu));
++			: : [addr] "m" (init_tss[raw_smp_processor_id()].x86_tss.sp0));
+ 	}
+ 
+ 	return fpu_restore_checking(&tsk->thread.fpu);
+diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
+index b4c1f54..e290c08 100644
+--- a/arch/x86/include/asm/futex.h
++++ b/arch/x86/include/asm/futex.h
+@@ -12,6 +12,7 @@
+ #include <asm/smap.h>
+ 
+ #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg)	\
++	typecheck(u32 __user *, uaddr);				\
+ 	asm volatile("\t" ASM_STAC "\n"				\
+ 		     "1:\t" insn "\n"				\
+ 		     "2:\t" ASM_CLAC "\n"			\
+@@ -20,15 +21,16 @@
+ 		     "\tjmp\t2b\n"				\
+ 		     "\t.previous\n"				\
+ 		     _ASM_EXTABLE(1b, 3b)			\
+-		     : "=r" (oldval), "=r" (ret), "+m" (*uaddr)	\
++		     : "=r" (oldval), "=r" (ret), "+m" (*(u32 __user *)____m(uaddr))	\
+ 		     : "i" (-EFAULT), "0" (oparg), "1" (0))
+ 
+ #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg)	\
++	typecheck(u32 __user *, uaddr);				\
+ 	asm volatile("\t" ASM_STAC "\n"				\
+ 		     "1:\tmovl	%2, %0\n"			\
+ 		     "\tmovl\t%0, %3\n"				\
+ 		     "\t" insn "\n"				\
+-		     "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n"	\
++		     "2:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %3, %2\n"	\
+ 		     "\tjnz\t1b\n"				\
+ 		     "3:\t" ASM_CLAC "\n"			\
+ 		     "\t.section .fixup,\"ax\"\n"		\
+@@ -38,7 +40,7 @@
+ 		     _ASM_EXTABLE(1b, 4b)			\
+ 		     _ASM_EXTABLE(2b, 4b)			\
+ 		     : "=&a" (oldval), "=&r" (ret),		\
+-		       "+m" (*uaddr), "=&r" (tem)		\
++		       "+m" (*(u32 __user *)____m(uaddr)), "=&r" (tem)	\
+ 		     : "r" (oparg), "i" (-EFAULT), "1" (0))
+ 
+ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+@@ -57,12 +59,13 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+ 
+ 	pagefault_disable();
+ 
++	pax_open_userland();
+ 	switch (op) {
+ 	case FUTEX_OP_SET:
+-		__futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
++		__futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg);
+ 		break;
+ 	case FUTEX_OP_ADD:
+-		__futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
++		__futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval,
+ 				   uaddr, oparg);
+ 		break;
+ 	case FUTEX_OP_OR:
+@@ -77,6 +80,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+ 	default:
+ 		ret = -ENOSYS;
+ 	}
++	pax_close_userland();
+ 
+ 	pagefault_enable();
+ 
+diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
+index 67d69b8..50e4b77 100644
+--- a/arch/x86/include/asm/hw_irq.h
++++ b/arch/x86/include/asm/hw_irq.h
+@@ -165,8 +165,8 @@ extern void setup_ioapic_dest(void);
+ extern void enable_IO_APIC(void);
+ 
+ /* Statistics */
+-extern atomic_t irq_err_count;
+-extern atomic_t irq_mis_count;
++extern atomic_unchecked_t irq_err_count;
++extern atomic_unchecked_t irq_mis_count;
+ 
+ /* EISA */
+ extern void eisa_set_level_irq(unsigned int irq);
+diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
+index a203659..9889f1c 100644
+--- a/arch/x86/include/asm/i8259.h
++++ b/arch/x86/include/asm/i8259.h
+@@ -62,7 +62,7 @@ struct legacy_pic {
+ 	void (*init)(int auto_eoi);
+ 	int (*irq_pending)(unsigned int irq);
+ 	void (*make_irq)(unsigned int irq);
+-};
++} __do_const;
+ 
+ extern struct legacy_pic *legacy_pic;
+ extern struct legacy_pic null_legacy_pic;
+diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
+index 91d9c69..dfae7d0 100644
+--- a/arch/x86/include/asm/io.h
++++ b/arch/x86/include/asm/io.h
+@@ -51,12 +51,12 @@ static inline void name(type val, volatile void __iomem *addr) \
+ "m" (*(volatile type __force *)addr) barrier); }
+ 
+ build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
+-build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
+-build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
++build_mmio_read(__intentional_overflow(-1) readw, "w", unsigned short, "=r", :"memory")
++build_mmio_read(__intentional_overflow(-1) readl, "l", unsigned int, "=r", :"memory")
+ 
+ build_mmio_read(__readb, "b", unsigned char, "=q", )
+-build_mmio_read(__readw, "w", unsigned short, "=r", )
+-build_mmio_read(__readl, "l", unsigned int, "=r", )
++build_mmio_read(__intentional_overflow(-1) __readw, "w", unsigned short, "=r", )
++build_mmio_read(__intentional_overflow(-1) __readl, "l", unsigned int, "=r", )
+ 
+ build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
+ build_mmio_write(writew, "w", unsigned short, "r", :"memory")
+@@ -184,7 +184,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
+ 	return ioremap_nocache(offset, size);
+ }
+ 
+-extern void iounmap(volatile void __iomem *addr);
++extern void iounmap(const volatile void __iomem *addr);
+ 
+ extern void set_iounmap_nonlazy(void);
+ 
+@@ -194,6 +194,17 @@ extern void set_iounmap_nonlazy(void);
+ 
+ #include <linux/vmalloc.h>
+ 
++#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
++static inline int valid_phys_addr_range(unsigned long addr, size_t count)
++{
++	return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
++}
++
++static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count)
++{
++	return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0;
++}
++
+ /*
+  * Convert a virtual cached pointer to an uncached pointer
+  */
+diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
+index 0a8b519..80e7d5b 100644
+--- a/arch/x86/include/asm/irqflags.h
++++ b/arch/x86/include/asm/irqflags.h
+@@ -141,6 +141,11 @@ static inline notrace unsigned long arch_local_irq_save(void)
+ 	sti;					\
+ 	sysexit
+ 
++#define GET_CR0_INTO_RDI		mov %cr0, %rdi
++#define SET_RDI_INTO_CR0		mov %rdi, %cr0
++#define GET_CR3_INTO_RDI		mov %cr3, %rdi
++#define SET_RDI_INTO_CR3		mov %rdi, %cr3
++
+ #else
+ #define INTERRUPT_RETURN		iret
+ #define ENABLE_INTERRUPTS_SYSEXIT	sti; sysexit
+diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
+index 9454c16..e4100e3 100644
+--- a/arch/x86/include/asm/kprobes.h
++++ b/arch/x86/include/asm/kprobes.h
+@@ -38,13 +38,8 @@ typedef u8 kprobe_opcode_t;
+ #define RELATIVEJUMP_SIZE 5
+ #define RELATIVECALL_OPCODE 0xe8
+ #define RELATIVE_ADDR_SIZE 4
+-#define MAX_STACK_SIZE 64
+-#define MIN_STACK_SIZE(ADDR)					       \
+-	(((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
+-			      THREAD_SIZE - (unsigned long)(ADDR)))    \
+-	 ? (MAX_STACK_SIZE)					       \
+-	 : (((unsigned long)current_thread_info()) +		       \
+-	    THREAD_SIZE - (unsigned long)(ADDR)))
++#define MAX_STACK_SIZE 64UL
++#define MIN_STACK_SIZE(ADDR)	min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR))
+ 
+ #define flush_insn_slot(p)	do { } while (0)
+ 
+diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
+index e9dc029..468a823 100644
+--- a/arch/x86/include/asm/kvm_host.h
++++ b/arch/x86/include/asm/kvm_host.h
+@@ -55,6 +55,7 @@
+ #define CR3_PCID_ENABLED_RESERVED_BITS 0xFFFFFF0000000000ULL
+ #define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS |	\
+ 				  0xFFFFFF0000000000ULL)
++#define CR3_PCID_INVD		 (1UL << 63)
+ #define CR4_RESERVED_BITS                                               \
+ 	(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
+ 			  | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE     \
+diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
+index 4ad6560..75c7bdd 100644
+--- a/arch/x86/include/asm/local.h
++++ b/arch/x86/include/asm/local.h
+@@ -10,33 +10,97 @@ typedef struct {
+ 	atomic_long_t a;
+ } local_t;
+ 
++typedef struct {
++	atomic_long_unchecked_t a;
++} local_unchecked_t;
++
+ #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
+ 
+ #define local_read(l)	atomic_long_read(&(l)->a)
++#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
+ #define local_set(l, i)	atomic_long_set(&(l)->a, (i))
++#define local_set_unchecked(l, i)	atomic_long_set_unchecked(&(l)->a, (i))
+ 
+ static inline void local_inc(local_t *l)
+ {
+-	asm volatile(_ASM_INC "%0"
++	asm volatile(_ASM_INC "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     _ASM_DEC "%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (l->a.counter));
++}
++
++static inline void local_inc_unchecked(local_unchecked_t *l)
++{
++	asm volatile(_ASM_INC "%0\n"
+ 		     : "+m" (l->a.counter));
+ }
+ 
+ static inline void local_dec(local_t *l)
+ {
+-	asm volatile(_ASM_DEC "%0"
++	asm volatile(_ASM_DEC "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     _ASM_INC "%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (l->a.counter));
++}
++
++static inline void local_dec_unchecked(local_unchecked_t *l)
++{
++	asm volatile(_ASM_DEC "%0\n"
+ 		     : "+m" (l->a.counter));
+ }
+ 
+ static inline void local_add(long i, local_t *l)
+ {
+-	asm volatile(_ASM_ADD "%1,%0"
++	asm volatile(_ASM_ADD "%1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     _ASM_SUB "%1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (l->a.counter)
++		     : "ir" (i));
++}
++
++static inline void local_add_unchecked(long i, local_unchecked_t *l)
++{
++	asm volatile(_ASM_ADD "%1,%0\n"
+ 		     : "+m" (l->a.counter)
+ 		     : "ir" (i));
+ }
+ 
+ static inline void local_sub(long i, local_t *l)
+ {
+-	asm volatile(_ASM_SUB "%1,%0"
++	asm volatile(_ASM_SUB "%1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     _ASM_ADD "%1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+m" (l->a.counter)
++		     : "ir" (i));
++}
++
++static inline void local_sub_unchecked(long i, local_unchecked_t *l)
++{
++	asm volatile(_ASM_SUB "%1,%0\n"
+ 		     : "+m" (l->a.counter)
+ 		     : "ir" (i));
+ }
+@@ -52,7 +116,7 @@ static inline void local_sub(long i, local_t *l)
+  */
+ static inline int local_sub_and_test(long i, local_t *l)
+ {
+-	GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e");
++	GEN_BINARY_RMWcc(_ASM_SUB, _ASM_ADD, l->a.counter, "er", i, "%0", "e");
+ }
+ 
+ /**
+@@ -65,7 +129,7 @@ static inline int local_sub_and_test(long i, local_t *l)
+  */
+ static inline int local_dec_and_test(local_t *l)
+ {
+-	GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, "%0", "e");
++	GEN_UNARY_RMWcc(_ASM_DEC, _ASM_INC, l->a.counter, "%0", "e");
+ }
+ 
+ /**
+@@ -78,7 +142,7 @@ static inline int local_dec_and_test(local_t *l)
+  */
+ static inline int local_inc_and_test(local_t *l)
+ {
+-	GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, "%0", "e");
++	GEN_UNARY_RMWcc(_ASM_INC, _ASM_DEC, l->a.counter, "%0", "e");
+ }
+ 
+ /**
+@@ -92,7 +156,7 @@ static inline int local_inc_and_test(local_t *l)
+  */
+ static inline int local_add_negative(long i, local_t *l)
+ {
+-	GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s");
++	GEN_BINARY_RMWcc(_ASM_ADD, _ASM_SUB, l->a.counter, "er", i, "%0", "s");
+ }
+ 
+ /**
+@@ -105,6 +169,30 @@ static inline int local_add_negative(long i, local_t *l)
+ static inline long local_add_return(long i, local_t *l)
+ {
+ 	long __i = i;
++	asm volatile(_ASM_XADD "%0, %1\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     _ASM_MOV "%0,%1\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
++		     : "+r" (i), "+m" (l->a.counter)
++		     : : "memory");
++	return i + __i;
++}
++
++/**
++ * local_add_return_unchecked - add and return
++ * @i: integer value to add
++ * @l: pointer to type local_unchecked_t
++ *
++ * Atomically adds @i to @l and returns @i + @l
++ */
++static inline long local_add_return_unchecked(long i, local_unchecked_t *l)
++{
++	long __i = i;
+ 	asm volatile(_ASM_XADD "%0, %1;"
+ 		     : "+r" (i), "+m" (l->a.counter)
+ 		     : : "memory");
+@@ -121,6 +209,8 @@ static inline long local_sub_return(long i, local_t *l)
+ 
+ #define local_cmpxchg(l, o, n) \
+ 	(cmpxchg_local(&((l)->a.counter), (o), (n)))
++#define local_cmpxchg_unchecked(l, o, n) \
++	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+ /* Always has a lock prefix */
+ #define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
+ 
+diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
+new file mode 100644
+index 0000000..2bfd3ba
+--- /dev/null
++++ b/arch/x86/include/asm/mman.h
+@@ -0,0 +1,15 @@
++#ifndef _X86_MMAN_H
++#define _X86_MMAN_H
++
++#include <uapi/asm/mman.h>
++
++#ifdef __KERNEL__
++#ifndef __ASSEMBLY__
++#ifdef CONFIG_X86_32
++#define arch_mmap_check	i386_mmap_check
++int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
++#endif
++#endif
++#endif
++
++#endif /* X86_MMAN_H */
+diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
+index 5f55e69..e20bfb1 100644
+--- a/arch/x86/include/asm/mmu.h
++++ b/arch/x86/include/asm/mmu.h
+@@ -9,7 +9,7 @@
+  * we put the segment information here.
+  */
+ typedef struct {
+-	void *ldt;
++	struct desc_struct *ldt;
+ 	int size;
+ 
+ #ifdef CONFIG_X86_64
+@@ -18,7 +18,19 @@ typedef struct {
+ #endif
+ 
+ 	struct mutex lock;
+-	void *vdso;
++	unsigned long vdso;
++
++#ifdef CONFIG_X86_32
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++	unsigned long user_cs_base;
++	unsigned long user_cs_limit;
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
++	cpumask_t cpu_user_cs_mask;
++#endif
++
++#endif
++#endif
+ } mm_context_t;
+ 
+ #ifdef CONFIG_SMP
+diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
+index be12c53..4d24039 100644
+--- a/arch/x86/include/asm/mmu_context.h
++++ b/arch/x86/include/asm/mmu_context.h
+@@ -24,6 +24,20 @@ void destroy_context(struct mm_struct *mm);
+ 
+ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+ {
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	if (!(static_cpu_has(X86_FEATURE_PCID))) {
++		unsigned int i;
++		pgd_t *pgd;
++
++		pax_open_kernel();
++		pgd = get_cpu_pgd(smp_processor_id(), kernel);
++		for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i)
++			set_pgd_batched(pgd+i, native_make_pgd(0));
++		pax_close_kernel();
++	}
++#endif
++
+ #ifdef CONFIG_SMP
+ 	if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
+ 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
+@@ -34,16 +48,59 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ 			     struct task_struct *tsk)
+ {
+ 	unsigned cpu = smp_processor_id();
++#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
++	int tlbstate = TLBSTATE_OK;
++#endif
+ 
+ 	if (likely(prev != next)) {
+ #ifdef CONFIG_SMP
++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
++		tlbstate = this_cpu_read(cpu_tlbstate.state);
++#endif
+ 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
+ 		this_cpu_write(cpu_tlbstate.active_mm, next);
+ #endif
+ 		cpumask_set_cpu(cpu, mm_cpumask(next));
+ 
+ 		/* Re-load page tables */
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		pax_open_kernel();
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++		if (static_cpu_has(X86_FEATURE_PCID))
++			__clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
++		else
++#endif
++
++		__clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
++		__shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
++		pax_close_kernel();
++		BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++		if (static_cpu_has(X86_FEATURE_PCID)) {
++			if (static_cpu_has(X86_FEATURE_INVPCID)) {
++				u64 descriptor[2];
++				descriptor[0] = PCID_USER;
++				asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
++				if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
++					descriptor[0] = PCID_KERNEL;
++					asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
++				}
++			} else {
++				write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
++				if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
++					write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
++				else
++					write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
++			}
++		} else
++#endif
++
++			load_cr3(get_cpu_pgd(cpu, kernel));
++#else
+ 		load_cr3(next->pgd);
++#endif
+ 
+ 		/* Stop flush ipis for the previous mm */
+ 		cpumask_clear_cpu(cpu, mm_cpumask(prev));
+@@ -51,9 +108,67 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ 		/* Load the LDT, if the LDT is different: */
+ 		if (unlikely(prev->context.ldt != next->context.ldt))
+ 			load_LDT_nolock(&next->context);
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
++		if (!(__supported_pte_mask & _PAGE_NX)) {
++			smp_mb__before_clear_bit();
++			cpu_clear(cpu, prev->context.cpu_user_cs_mask);
++			smp_mb__after_clear_bit();
++			cpu_set(cpu, next->context.cpu_user_cs_mask);
++		}
++#endif
++
++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
++		if (unlikely(prev->context.user_cs_base != next->context.user_cs_base ||
++			     prev->context.user_cs_limit != next->context.user_cs_limit))
++			set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
++#ifdef CONFIG_SMP
++		else if (unlikely(tlbstate != TLBSTATE_OK))
++			set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
++#endif
++#endif
++
+ 	}
++	else {
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		pax_open_kernel();
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++		if (static_cpu_has(X86_FEATURE_PCID))
++			__clone_user_pgds(get_cpu_pgd(cpu, user), next->pgd);
++		else
++#endif
++
++		__clone_user_pgds(get_cpu_pgd(cpu, kernel), next->pgd);
++		__shadow_user_pgds(get_cpu_pgd(cpu, kernel) + USER_PGD_PTRS, next->pgd);
++		pax_close_kernel();
++		BUG_ON((__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL) != (read_cr3() & __PHYSICAL_MASK) && (__pa(get_cpu_pgd(cpu, user)) | PCID_USER) != (read_cr3() & __PHYSICAL_MASK));
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++		if (static_cpu_has(X86_FEATURE_PCID)) {
++			if (static_cpu_has(X86_FEATURE_INVPCID)) {
++				u64 descriptor[2];
++				descriptor[0] = PCID_USER;
++				asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
++				if (!static_cpu_has(X86_FEATURE_STRONGUDEREF)) {
++					descriptor[0] = PCID_KERNEL;
++					asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_CONTEXT) : "memory");
++				}
++			} else {
++				write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
++				if (static_cpu_has(X86_FEATURE_STRONGUDEREF))
++					write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
++				else
++					write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
++			}
++		} else
++#endif
++
++			load_cr3(get_cpu_pgd(cpu, kernel));
++#endif
++
+ #ifdef CONFIG_SMP
+-	  else {
+ 		this_cpu_write(cpu_tlbstate.state, TLBSTATE_OK);
+ 		BUG_ON(this_cpu_read(cpu_tlbstate.active_mm) != next);
+ 
+@@ -70,11 +185,28 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ 			 * tlb flush IPI delivery. We must reload CR3
+ 			 * to make sure to use no freed page tables.
+ 			 */
++
++#ifndef CONFIG_PAX_PER_CPU_PGD
+ 			load_cr3(next->pgd);
++#endif
++
+ 			load_LDT_nolock(&next->context);
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++			if (!(__supported_pte_mask & _PAGE_NX))
++				cpu_set(cpu, next->context.cpu_user_cs_mask);
++#endif
++
++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC))
++#ifdef CONFIG_PAX_PAGEEXEC
++			if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX)))
++#endif
++				set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu);
++#endif
++
+ 		}
++#endif
+ 	}
+-#endif
+ }
+ 
+ #define activate_mm(prev, next)			\
+diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
+index e3b7819..b257c64 100644
+--- a/arch/x86/include/asm/module.h
++++ b/arch/x86/include/asm/module.h
+@@ -5,6 +5,7 @@
+ 
+ #ifdef CONFIG_X86_64
+ /* X86_64 does not define MODULE_PROC_FAMILY */
++#define MODULE_PROC_FAMILY ""
+ #elif defined CONFIG_M486
+ #define MODULE_PROC_FAMILY "486 "
+ #elif defined CONFIG_M586
+@@ -57,8 +58,20 @@
+ #error unknown processor family
+ #endif
+ 
+-#ifdef CONFIG_X86_32
+-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS
++#define MODULE_PAX_KERNEXEC "KERNEXEC_BTS "
++#elif defined(CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR)
++#define MODULE_PAX_KERNEXEC "KERNEXEC_OR "
++#else
++#define MODULE_PAX_KERNEXEC ""
+ #endif
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++#define MODULE_PAX_UDEREF "UDEREF "
++#else
++#define MODULE_PAX_UDEREF ""
++#endif
++
++#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF
++
+ #endif /* _ASM_X86_MODULE_H */
+diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
+index 86f9301..b365cda 100644
+--- a/arch/x86/include/asm/nmi.h
++++ b/arch/x86/include/asm/nmi.h
+@@ -40,11 +40,11 @@ struct nmiaction {
+ 	nmi_handler_t		handler;
+ 	unsigned long		flags;
+ 	const char		*name;
+-};
++} __do_const;
+ 
+ #define register_nmi_handler(t, fn, fg, n, init...)	\
+ ({							\
+-	static struct nmiaction init fn##_na = {	\
++	static const struct nmiaction init fn##_na = {	\
+ 		.handler = (fn),			\
+ 		.name = (n),				\
+ 		.flags = (fg),				\
+@@ -52,7 +52,7 @@ struct nmiaction {
+ 	__register_nmi_handler((t), &fn##_na);		\
+ })
+ 
+-int __register_nmi_handler(unsigned int, struct nmiaction *);
++int __register_nmi_handler(unsigned int, const struct nmiaction *);
+ 
+ void unregister_nmi_handler(unsigned int, const char *);
+ 
+diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
+index 775873d..04cd306 100644
+--- a/arch/x86/include/asm/page.h
++++ b/arch/x86/include/asm/page.h
+@@ -52,6 +52,7 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
+ 	__phys_addr_symbol(__phys_reloc_hide((unsigned long)(x)))
+ 
+ #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
++#define __early_va(x)		((void *)((unsigned long)(x)+__START_KERNEL_map - phys_base))
+ 
+ #define __boot_va(x)		__va(x)
+ #define __boot_pa(x)		__pa(x)
+@@ -60,11 +61,21 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
+  * virt_to_page(kaddr) returns a valid pointer if and only if
+  * virt_addr_valid(kaddr) returns true.
+  */
+-#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+ #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
+ extern bool __virt_addr_valid(unsigned long kaddr);
+ #define virt_addr_valid(kaddr)	__virt_addr_valid((unsigned long) (kaddr))
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++#define virt_to_page(kaddr)	\
++	({ \
++		const void *__kaddr = (const void *)(kaddr); \
++		BUG_ON(!virt_addr_valid(__kaddr)); \
++		pfn_to_page(__pa(__kaddr) >> PAGE_SHIFT); \
++	})
++#else
++#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
++#endif
++
+ #endif	/* __ASSEMBLY__ */
+ 
+ #include <asm-generic/memory_model.h>
+diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
+index 0f1ddee..7ce1ad2 100644
+--- a/arch/x86/include/asm/page_64.h
++++ b/arch/x86/include/asm/page_64.h
+@@ -7,9 +7,9 @@
+ 
+ /* duplicated to the one in bootmem.h */
+ extern unsigned long max_pfn;
+-extern unsigned long phys_base;
++extern const unsigned long phys_base;
+ 
+-static inline unsigned long __phys_addr_nodebug(unsigned long x)
++static inline unsigned long __intentional_overflow(-1) __phys_addr_nodebug(unsigned long x)
+ {
+ 	unsigned long y = x - __START_KERNEL_map;
+ 
+@@ -20,8 +20,8 @@ static inline unsigned long __phys_addr_nodebug(unsigned long x)
+ }
+ 
+ #ifdef CONFIG_DEBUG_VIRTUAL
+-extern unsigned long __phys_addr(unsigned long);
+-extern unsigned long __phys_addr_symbol(unsigned long);
++extern unsigned long __intentional_overflow(-1) __phys_addr(unsigned long);
++extern unsigned long __intentional_overflow(-1) __phys_addr_symbol(unsigned long);
+ #else
+ #define __phys_addr(x)		__phys_addr_nodebug(x)
+ #define __phys_addr_symbol(x) \
+diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
+index d54d1ee..75450b2 100644
+--- a/arch/x86/include/asm/page_64_types.h
++++ b/arch/x86/include/asm/page_64_types.h
+@@ -1,7 +1,7 @@
+ #ifndef _ASM_X86_PAGE_64_DEFS_H
+ #define _ASM_X86_PAGE_64_DEFS_H
+ 
+-#define THREAD_SIZE_ORDER	1
++#define THREAD_SIZE_ORDER	2
+ #define THREAD_SIZE  (PAGE_SIZE << THREAD_SIZE_ORDER)
+ #define CURRENT_MASK (~(THREAD_SIZE - 1))
+ 
+diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
+index cd6e1610..70f4418 100644
+--- a/arch/x86/include/asm/paravirt.h
++++ b/arch/x86/include/asm/paravirt.h
+@@ -560,7 +560,7 @@ static inline pmd_t __pmd(pmdval_t val)
+ 	return (pmd_t) { ret };
+ }
+ 
+-static inline pmdval_t pmd_val(pmd_t pmd)
++static inline __intentional_overflow(-1) pmdval_t pmd_val(pmd_t pmd)
+ {
+ 	pmdval_t ret;
+ 
+@@ -626,6 +626,18 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
+ 			    val);
+ }
+ 
++static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
++{
++	pgdval_t val = native_pgd_val(pgd);
++
++	if (sizeof(pgdval_t) > sizeof(long))
++		PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp,
++			    val, (u64)val >> 32);
++	else
++		PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp,
++			    val);
++}
++
+ static inline void pgd_clear(pgd_t *pgdp)
+ {
+ 	set_pgd(pgdp, __pgd(0));
+@@ -710,6 +722,21 @@ static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
+ 	pv_mmu_ops.set_fixmap(idx, phys, flags);
+ }
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++static inline unsigned long pax_open_kernel(void)
++{
++	return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel);
++}
++
++static inline unsigned long pax_close_kernel(void)
++{
++	return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel);
++}
++#else
++static inline unsigned long pax_open_kernel(void) { return 0; }
++static inline unsigned long pax_close_kernel(void) { return 0; }
++#endif
++
+ #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
+ 
+ static __always_inline void __ticket_lock_spinning(struct arch_spinlock *lock,
+@@ -906,7 +933,7 @@ extern void default_banner(void);
+ 
+ #define PARA_PATCH(struct, off)        ((PARAVIRT_PATCH_##struct + (off)) / 4)
+ #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
+-#define PARA_INDIRECT(addr)	*%cs:addr
++#define PARA_INDIRECT(addr)	*%ss:addr
+ #endif
+ 
+ #define INTERRUPT_RETURN						\
+@@ -981,6 +1008,21 @@ extern void default_banner(void);
+ 	PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit),	\
+ 		  CLBR_NONE,						\
+ 		  jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
++
++#define GET_CR0_INTO_RDI				\
++	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);	\
++	mov %rax,%rdi
++
++#define SET_RDI_INTO_CR0				\
++	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
++
++#define GET_CR3_INTO_RDI				\
++	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3);	\
++	mov %rax,%rdi
++
++#define SET_RDI_INTO_CR3				\
++	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3)
++
+ #endif	/* CONFIG_X86_32 */
+ 
+ #endif /* __ASSEMBLY__ */
+diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
+index 7549b8b..f0edfda 100644
+--- a/arch/x86/include/asm/paravirt_types.h
++++ b/arch/x86/include/asm/paravirt_types.h
+@@ -84,7 +84,7 @@ struct pv_init_ops {
+ 	 */
+ 	unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
+ 			  unsigned long addr, unsigned len);
+-};
++} __no_const __no_randomize_layout;
+ 
+ 
+ struct pv_lazy_ops {
+@@ -92,13 +92,13 @@ struct pv_lazy_ops {
+ 	void (*enter)(void);
+ 	void (*leave)(void);
+ 	void (*flush)(void);
+-};
++} __no_randomize_layout;
+ 
+ struct pv_time_ops {
+ 	unsigned long long (*sched_clock)(void);
+ 	unsigned long long (*steal_clock)(int cpu);
+ 	unsigned long (*get_tsc_khz)(void);
+-};
++} __no_const __no_randomize_layout;
+ 
+ struct pv_cpu_ops {
+ 	/* hooks for various privileged instructions */
+@@ -192,7 +192,7 @@ struct pv_cpu_ops {
+ 
+ 	void (*start_context_switch)(struct task_struct *prev);
+ 	void (*end_context_switch)(struct task_struct *next);
+-};
++} __no_const __no_randomize_layout;
+ 
+ struct pv_irq_ops {
+ 	/*
+@@ -215,7 +215,7 @@ struct pv_irq_ops {
+ #ifdef CONFIG_X86_64
+ 	void (*adjust_exception_frame)(void);
+ #endif
+-};
++} __no_randomize_layout;
+ 
+ struct pv_apic_ops {
+ #ifdef CONFIG_X86_LOCAL_APIC
+@@ -223,7 +223,7 @@ struct pv_apic_ops {
+ 				 unsigned long start_eip,
+ 				 unsigned long start_esp);
+ #endif
+-};
++} __no_const __no_randomize_layout;
+ 
+ struct pv_mmu_ops {
+ 	unsigned long (*read_cr2)(void);
+@@ -313,6 +313,7 @@ struct pv_mmu_ops {
+ 	struct paravirt_callee_save make_pud;
+ 
+ 	void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
++	void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval);
+ #endif	/* PAGETABLE_LEVELS == 4 */
+ #endif	/* PAGETABLE_LEVELS >= 3 */
+ 
+@@ -324,7 +325,13 @@ struct pv_mmu_ops {
+ 	   an mfn.  We can tell which is which from the index. */
+ 	void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
+ 			   phys_addr_t phys, pgprot_t flags);
+-};
++
++#ifdef CONFIG_PAX_KERNEXEC
++	unsigned long (*pax_open_kernel)(void);
++	unsigned long (*pax_close_kernel)(void);
++#endif
++
++} __no_randomize_layout;
+ 
+ struct arch_spinlock;
+ #ifdef CONFIG_SMP
+@@ -336,11 +343,14 @@ typedef u16 __ticket_t;
+ struct pv_lock_ops {
+ 	struct paravirt_callee_save lock_spinning;
+ 	void (*unlock_kick)(struct arch_spinlock *lock, __ticket_t ticket);
+-};
++} __no_randomize_layout;
+ 
+ /* This contains all the paravirt structures: we get a convenient
+  * number for each function using the offset which we use to indicate
+- * what to patch. */
++ * what to patch.
++ * shouldn't be randomized due to the "NEAT TRICK" in paravirt.c
++ */
++
+ struct paravirt_patch_template {
+ 	struct pv_init_ops pv_init_ops;
+ 	struct pv_time_ops pv_time_ops;
+@@ -349,7 +359,7 @@ struct paravirt_patch_template {
+ 	struct pv_apic_ops pv_apic_ops;
+ 	struct pv_mmu_ops pv_mmu_ops;
+ 	struct pv_lock_ops pv_lock_ops;
+-};
++} __no_randomize_layout;
+ 
+ extern struct pv_info pv_info;
+ extern struct pv_init_ops pv_init_ops;
+diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
+index c4412e9..90e88c5 100644
+--- a/arch/x86/include/asm/pgalloc.h
++++ b/arch/x86/include/asm/pgalloc.h
+@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
+ 				       pmd_t *pmd, pte_t *pte)
+ {
+ 	paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
++	set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE));
++}
++
++static inline void pmd_populate_user(struct mm_struct *mm,
++				       pmd_t *pmd, pte_t *pte)
++{
++	paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
+ 	set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
+ }
+ 
+@@ -108,12 +115,22 @@ static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
+ 
+ #ifdef CONFIG_X86_PAE
+ extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
++{
++	pud_populate(mm, pudp, pmd);
++}
+ #else	/* !CONFIG_X86_PAE */
+ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+ {
+ 	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
+ 	set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
+ }
++
++static inline void pud_populate_kernel(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
++{
++	paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
++	set_pud(pud, __pud(_KERNPG_TABLE | __pa(pmd)));
++}
+ #endif	/* CONFIG_X86_PAE */
+ 
+ #if PAGETABLE_LEVELS > 3
+@@ -123,6 +140,12 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+ 	set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
+ }
+ 
++static inline void pgd_populate_kernel(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
++{
++	paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
++	set_pgd(pgd, __pgd(_KERNPG_TABLE | __pa(pud)));
++}
++
+ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+ {
+ 	return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
+diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
+index 0d193e2..bf59aeb 100644
+--- a/arch/x86/include/asm/pgtable-2level.h
++++ b/arch/x86/include/asm/pgtable-2level.h
+@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
+ 
+ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+ {
++	pax_open_kernel();
+ 	*pmdp = pmd;
++	pax_close_kernel();
+ }
+ 
+ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
+diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
+index 81bb91b..9392125 100644
+--- a/arch/x86/include/asm/pgtable-3level.h
++++ b/arch/x86/include/asm/pgtable-3level.h
+@@ -92,12 +92,16 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
+ 
+ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+ {
++	pax_open_kernel();
+ 	set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
++	pax_close_kernel();
+ }
+ 
+ static inline void native_set_pud(pud_t *pudp, pud_t pud)
+ {
++	pax_open_kernel();
+ 	set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
++	pax_close_kernel();
+ }
+ 
+ /*
+diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
+index bbc8b12..a614983 100644
+--- a/arch/x86/include/asm/pgtable.h
++++ b/arch/x86/include/asm/pgtable.h
+@@ -45,6 +45,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
+ 
+ #ifndef __PAGETABLE_PUD_FOLDED
+ #define set_pgd(pgdp, pgd)		native_set_pgd(pgdp, pgd)
++#define set_pgd_batched(pgdp, pgd)	native_set_pgd_batched(pgdp, pgd)
+ #define pgd_clear(pgd)			native_pgd_clear(pgd)
+ #endif
+ 
+@@ -82,12 +83,53 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
+ 
+ #define arch_end_context_switch(prev)	do {} while(0)
+ 
++#define pax_open_kernel()	native_pax_open_kernel()
++#define pax_close_kernel()	native_pax_close_kernel()
+ #endif	/* CONFIG_PARAVIRT */
+ 
++#define  __HAVE_ARCH_PAX_OPEN_KERNEL
++#define  __HAVE_ARCH_PAX_CLOSE_KERNEL
++
++#ifdef CONFIG_PAX_KERNEXEC
++static inline unsigned long native_pax_open_kernel(void)
++{
++	unsigned long cr0;
++
++	preempt_disable();
++	barrier();
++	cr0 = read_cr0() ^ X86_CR0_WP;
++	BUG_ON(cr0 & X86_CR0_WP);
++	write_cr0(cr0);
++	barrier();
++	return cr0 ^ X86_CR0_WP;
++}
++
++static inline unsigned long native_pax_close_kernel(void)
++{
++	unsigned long cr0;
++
++	barrier();
++	cr0 = read_cr0() ^ X86_CR0_WP;
++	BUG_ON(!(cr0 & X86_CR0_WP));
++	write_cr0(cr0);
++	barrier();
++	preempt_enable_no_resched();
++	return cr0 ^ X86_CR0_WP;
++}
++#else
++static inline unsigned long native_pax_open_kernel(void) { return 0; }
++static inline unsigned long native_pax_close_kernel(void) { return 0; }
++#endif
++
+ /*
+  * The following only work if pte_present() is true.
+  * Undefined behaviour if not..
+  */
++static inline int pte_user(pte_t pte)
++{
++	return pte_val(pte) & _PAGE_USER;
++}
++
+ static inline int pte_dirty(pte_t pte)
+ {
+ 	return pte_flags(pte) & _PAGE_DIRTY;
+@@ -148,6 +190,11 @@ static inline unsigned long pud_pfn(pud_t pud)
+ 	return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
+ }
+ 
++static inline unsigned long pgd_pfn(pgd_t pgd)
++{
++	return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
++}
++
+ #define pte_page(pte)	pfn_to_page(pte_pfn(pte))
+ 
+ static inline int pmd_large(pmd_t pte)
+@@ -201,9 +248,29 @@ static inline pte_t pte_wrprotect(pte_t pte)
+ 	return pte_clear_flags(pte, _PAGE_RW);
+ }
+ 
++static inline pte_t pte_mkread(pte_t pte)
++{
++	return __pte(pte_val(pte) | _PAGE_USER);
++}
++
+ static inline pte_t pte_mkexec(pte_t pte)
+ {
+-	return pte_clear_flags(pte, _PAGE_NX);
++#ifdef CONFIG_X86_PAE
++	if (__supported_pte_mask & _PAGE_NX)
++		return pte_clear_flags(pte, _PAGE_NX);
++	else
++#endif
++		return pte_set_flags(pte, _PAGE_USER);
++}
++
++static inline pte_t pte_exprotect(pte_t pte)
++{
++#ifdef CONFIG_X86_PAE
++	if (__supported_pte_mask & _PAGE_NX)
++		return pte_set_flags(pte, _PAGE_NX);
++	else
++#endif
++		return pte_clear_flags(pte, _PAGE_USER);
+ }
+ 
+ static inline pte_t pte_mkdirty(pte_t pte)
+@@ -430,6 +497,16 @@ pte_t *populate_extra_pte(unsigned long vaddr);
+ #endif
+ 
+ #ifndef __ASSEMBLY__
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++extern pgd_t cpu_pgd[NR_CPUS][2][PTRS_PER_PGD];
++enum cpu_pgd_type {kernel = 0, user = 1};
++static inline pgd_t *get_cpu_pgd(unsigned int cpu, enum cpu_pgd_type type)
++{
++	return cpu_pgd[cpu][type];
++}
++#endif
++
+ #include <linux/mm_types.h>
+ #include <linux/mmdebug.h>
+ #include <linux/log2.h>
+@@ -570,7 +647,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
+  * Currently stuck as a macro due to indirect forward reference to
+  * linux/mmzone.h's __section_mem_map_addr() definition:
+  */
+-#define pud_page(pud)		pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
++#define pud_page(pud)		pfn_to_page((pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT)
+ 
+ /* Find an entry in the second-level page table.. */
+ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
+@@ -610,7 +687,7 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
+  * Currently stuck as a macro due to indirect forward reference to
+  * linux/mmzone.h's __section_mem_map_addr() definition:
+  */
+-#define pgd_page(pgd)		pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
++#define pgd_page(pgd)		pfn_to_page((pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT)
+ 
+ /* to find an entry in a page-table-directory. */
+ static inline unsigned long pud_index(unsigned long address)
+@@ -625,7 +702,7 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
+ 
+ static inline int pgd_bad(pgd_t pgd)
+ {
+-	return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
++	return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE;
+ }
+ 
+ static inline int pgd_none(pgd_t pgd)
+@@ -648,7 +725,12 @@ static inline int pgd_none(pgd_t pgd)
+  * pgd_offset() returns a (pgd_t *)
+  * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
+  */
+-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
++#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++#define pgd_offset_cpu(cpu, type, address) (get_cpu_pgd(cpu, type) + pgd_index(address))
++#endif
++
+ /*
+  * a shortcut which implies the use of the kernel's pgd, instead
+  * of a process's
+@@ -659,6 +741,23 @@ static inline int pgd_none(pgd_t pgd)
+ #define KERNEL_PGD_BOUNDARY	pgd_index(PAGE_OFFSET)
+ #define KERNEL_PGD_PTRS		(PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
+ 
++#ifdef CONFIG_X86_32
++#define USER_PGD_PTRS		KERNEL_PGD_BOUNDARY
++#else
++#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT
++#define USER_PGD_PTRS		(_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT))
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++#ifdef __ASSEMBLY__
++#define pax_user_shadow_base	pax_user_shadow_base(%rip)
++#else
++extern unsigned long pax_user_shadow_base;
++extern pgdval_t clone_pgd_mask;
++#endif
++#endif
++
++#endif
++
+ #ifndef __ASSEMBLY__
+ 
+ extern int direct_gbpages;
+@@ -825,11 +924,24 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
+  * dst and src can be on the same page, but the range must not overlap,
+  * and must not cross a page boundary.
+  */
+-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
++static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count)
+ {
+-       memcpy(dst, src, count * sizeof(pgd_t));
++	pax_open_kernel();
++	while (count--)
++		*dst++ = *src++;
++	pax_close_kernel();
+ }
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src);
++#endif
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src);
++#else
++static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src) {}
++#endif
++
+ #define PTE_SHIFT ilog2(PTRS_PER_PTE)
+ static inline int page_level_shift(enum pg_level level)
+ {
+diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
+index 9ee3221..b979c6b 100644
+--- a/arch/x86/include/asm/pgtable_32.h
++++ b/arch/x86/include/asm/pgtable_32.h
+@@ -25,9 +25,6 @@
+ struct mm_struct;
+ struct vm_area_struct;
+ 
+-extern pgd_t swapper_pg_dir[1024];
+-extern pgd_t initial_page_table[1024];
+-
+ static inline void pgtable_cache_init(void) { }
+ static inline void check_pgt_cache(void) { }
+ void paging_init(void);
+@@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
+ # include <asm/pgtable-2level.h>
+ #endif
+ 
++extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
++extern pgd_t initial_page_table[PTRS_PER_PGD];
++#ifdef CONFIG_X86_PAE
++extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD];
++#endif
++
+ #if defined(CONFIG_HIGHPTE)
+ #define pte_offset_map(dir, address)					\
+ 	((pte_t *)kmap_atomic(pmd_page(*(dir))) +		\
+@@ -62,12 +65,17 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
+ /* Clear a kernel PTE and flush it from the TLB */
+ #define kpte_clear_flush(ptep, vaddr)		\
+ do {						\
++	pax_open_kernel();			\
+ 	pte_clear(&init_mm, (vaddr), (ptep));	\
++	pax_close_kernel();			\
+ 	__flush_tlb_one((vaddr));		\
+ } while (0)
+ 
+ #endif /* !__ASSEMBLY__ */
+ 
++#define HAVE_ARCH_UNMAPPED_AREA
++#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
++
+ /*
+  * kern_addr_valid() is (1) for FLATMEM and (0) for
+  * SPARSEMEM and DISCONTIGMEM
+diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
+index ed5903b..c7fe163 100644
+--- a/arch/x86/include/asm/pgtable_32_types.h
++++ b/arch/x86/include/asm/pgtable_32_types.h
+@@ -8,7 +8,7 @@
+  */
+ #ifdef CONFIG_X86_PAE
+ # include <asm/pgtable-3level_types.h>
+-# define PMD_SIZE	(1UL << PMD_SHIFT)
++# define PMD_SIZE	(_AC(1, UL) << PMD_SHIFT)
+ # define PMD_MASK	(~(PMD_SIZE - 1))
+ #else
+ # include <asm/pgtable-2level_types.h>
+@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set once high_memory is set */
+ # define VMALLOC_END	(FIXADDR_START - 2 * PAGE_SIZE)
+ #endif
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++#ifndef __ASSEMBLY__
++extern unsigned char MODULES_EXEC_VADDR[];
++extern unsigned char MODULES_EXEC_END[];
++#endif
++#include <asm/boot.h>
++#define ktla_ktva(addr)		(addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET)
++#define ktva_ktla(addr)		(addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET)
++#else
++#define ktla_ktva(addr)		(addr)
++#define ktva_ktla(addr)		(addr)
++#endif
++
+ #define MODULES_VADDR	VMALLOC_START
+ #define MODULES_END	VMALLOC_END
+ #define MODULES_LEN	(MODULES_VADDR - MODULES_END)
+diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
+index d869931..9aff880 100644
+--- a/arch/x86/include/asm/pgtable_64.h
++++ b/arch/x86/include/asm/pgtable_64.h
+@@ -16,11 +16,16 @@
+ 
+ extern pud_t level3_kernel_pgt[512];
+ extern pud_t level3_ident_pgt[512];
++extern pud_t level3_vmalloc_start_pgt[512];
++extern pud_t level3_vmalloc_end_pgt[512];
++extern pud_t level3_vmemmap_pgt[512];
++extern pud_t level2_vmemmap_pgt[512];
+ extern pmd_t level2_kernel_pgt[512];
+ extern pmd_t level2_fixmap_pgt[512];
+-extern pmd_t level2_ident_pgt[512];
+-extern pte_t level1_fixmap_pgt[512];
+-extern pgd_t init_level4_pgt[];
++extern pmd_t level2_ident_pgt[2][512];
++extern pte_t level1_fixmap_pgt[3][512];
++extern pte_t level1_vsyscall_pgt[512];
++extern pgd_t init_level4_pgt[512];
+ 
+ #define swapper_pg_dir init_level4_pgt
+ 
+@@ -62,7 +67,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
+ 
+ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+ {
++	pax_open_kernel();
+ 	*pmdp = pmd;
++	pax_close_kernel();
+ }
+ 
+ static inline void native_pmd_clear(pmd_t *pmd)
+@@ -98,7 +105,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
+ 
+ static inline void native_set_pud(pud_t *pudp, pud_t pud)
+ {
++	pax_open_kernel();
+ 	*pudp = pud;
++	pax_close_kernel();
+ }
+ 
+ static inline void native_pud_clear(pud_t *pud)
+@@ -108,6 +117,13 @@ static inline void native_pud_clear(pud_t *pud)
+ 
+ static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
+ {
++	pax_open_kernel();
++	*pgdp = pgd;
++	pax_close_kernel();
++}
++
++static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
++{
+ 	*pgdp = pgd;
+ }
+ 
+diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
+index 7166e25..baaa6fe 100644
+--- a/arch/x86/include/asm/pgtable_64_types.h
++++ b/arch/x86/include/asm/pgtable_64_types.h
+@@ -61,9 +61,14 @@ typedef struct { pteval_t pte; } pte_t;
+ #define MODULES_VADDR    (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
+ #define MODULES_END      _AC(0xffffffffff000000, UL)
+ #define MODULES_LEN   (MODULES_END - MODULES_VADDR)
++#define MODULES_EXEC_VADDR MODULES_VADDR
++#define MODULES_EXEC_END MODULES_END
+ #define ESPFIX_PGD_ENTRY _AC(-2, UL)
+ #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT)
+ 
++#define ktla_ktva(addr)		(addr)
++#define ktva_ktla(addr)		(addr)
++
+ #define EARLY_DYNAMIC_PAGE_TABLES	64
+ 
+ #endif /* _ASM_X86_PGTABLE_64_DEFS_H */
+diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
+index 94e40f1..ebd03e4 100644
+--- a/arch/x86/include/asm/pgtable_types.h
++++ b/arch/x86/include/asm/pgtable_types.h
+@@ -16,13 +16,12 @@
+ #define _PAGE_BIT_PSE		7	/* 4 MB (or 2MB) page */
+ #define _PAGE_BIT_PAT		7	/* on 4KB pages */
+ #define _PAGE_BIT_GLOBAL	8	/* Global TLB entry PPro+ */
+-#define _PAGE_BIT_UNUSED1	9	/* available for programmer */
++#define _PAGE_BIT_SPECIAL	9	/* special mappings, no associated struct page */
+ #define _PAGE_BIT_IOMAP		10	/* flag used to indicate IO mapping */
+ #define _PAGE_BIT_HIDDEN	11	/* hidden by kmemcheck */
+ #define _PAGE_BIT_PAT_LARGE	12	/* On 2MB or 1GB pages */
+-#define _PAGE_BIT_SPECIAL	_PAGE_BIT_UNUSED1
+-#define _PAGE_BIT_CPA_TEST	_PAGE_BIT_UNUSED1
+-#define _PAGE_BIT_SPLITTING	_PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */
++#define _PAGE_BIT_CPA_TEST	_PAGE_BIT_SPECIAL
++#define _PAGE_BIT_SPLITTING	_PAGE_BIT_SPECIAL /* only valid on a PSE pmd */
+ #define _PAGE_BIT_NX           63       /* No execute: only valid after cpuid check */
+ 
+ /* If _PAGE_BIT_PRESENT is clear, we use these: */
+@@ -40,7 +39,6 @@
+ #define _PAGE_DIRTY	(_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
+ #define _PAGE_PSE	(_AT(pteval_t, 1) << _PAGE_BIT_PSE)
+ #define _PAGE_GLOBAL	(_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
+-#define _PAGE_UNUSED1	(_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
+ #define _PAGE_IOMAP	(_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
+ #define _PAGE_PAT	(_AT(pteval_t, 1) << _PAGE_BIT_PAT)
+ #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
+@@ -87,8 +85,10 @@
+ 
+ #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+ #define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_NX)
+-#else
++#elif defined(CONFIG_KMEMCHECK) || defined(CONFIG_MEM_SOFT_DIRTY)
+ #define _PAGE_NX	(_AT(pteval_t, 0))
++#else
++#define _PAGE_NX	(_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
+ #endif
+ 
+ #define _PAGE_FILE	(_AT(pteval_t, 1) << _PAGE_BIT_FILE)
+@@ -147,6 +147,9 @@
+ #define PAGE_READONLY_EXEC	__pgprot(_PAGE_PRESENT | _PAGE_USER |	\
+ 					 _PAGE_ACCESSED)
+ 
++#define PAGE_READONLY_NOEXEC PAGE_READONLY
++#define PAGE_SHARED_NOEXEC PAGE_SHARED
++
+ #define __PAGE_KERNEL_EXEC						\
+ 	(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
+ #define __PAGE_KERNEL		(__PAGE_KERNEL_EXEC | _PAGE_NX)
+@@ -157,7 +160,7 @@
+ #define __PAGE_KERNEL_WC		(__PAGE_KERNEL | _PAGE_CACHE_WC)
+ #define __PAGE_KERNEL_NOCACHE		(__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
+ #define __PAGE_KERNEL_UC_MINUS		(__PAGE_KERNEL | _PAGE_PCD)
+-#define __PAGE_KERNEL_VSYSCALL		(__PAGE_KERNEL_RX | _PAGE_USER)
++#define __PAGE_KERNEL_VSYSCALL		(__PAGE_KERNEL_RO | _PAGE_USER)
+ #define __PAGE_KERNEL_VVAR		(__PAGE_KERNEL_RO | _PAGE_USER)
+ #define __PAGE_KERNEL_VVAR_NOCACHE	(__PAGE_KERNEL_VVAR | _PAGE_PCD | _PAGE_PWT)
+ #define __PAGE_KERNEL_LARGE		(__PAGE_KERNEL | _PAGE_PSE)
+@@ -219,8 +222,8 @@
+  * bits are combined, this will alow user to access the high address mapped
+  * VDSO in the presence of CONFIG_COMPAT_VDSO
+  */
+-#define PTE_IDENT_ATTR	 0x003		/* PRESENT+RW */
+-#define PDE_IDENT_ATTR	 0x067		/* PRESENT+RW+USER+DIRTY+ACCESSED */
++#define PTE_IDENT_ATTR	 0x063		/* PRESENT+RW+DIRTY+ACCESSED */
++#define PDE_IDENT_ATTR	 0x063		/* PRESENT+RW+DIRTY+ACCESSED */
+ #define PGD_IDENT_ATTR	 0x001		/* PRESENT (no other attributes) */
+ #endif
+ 
+@@ -258,7 +261,17 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
+ {
+ 	return native_pgd_val(pgd) & PTE_FLAGS_MASK;
+ }
++#endif
+ 
++#if PAGETABLE_LEVELS == 3
++#include <asm-generic/pgtable-nopud.h>
++#endif
++
++#if PAGETABLE_LEVELS == 2
++#include <asm-generic/pgtable-nopmd.h>
++#endif
++
++#ifndef __ASSEMBLY__
+ #if PAGETABLE_LEVELS > 3
+ typedef struct { pudval_t pud; } pud_t;
+ 
+@@ -272,8 +285,6 @@ static inline pudval_t native_pud_val(pud_t pud)
+ 	return pud.pud;
+ }
+ #else
+-#include <asm-generic/pgtable-nopud.h>
+-
+ static inline pudval_t native_pud_val(pud_t pud)
+ {
+ 	return native_pgd_val(pud.pgd);
+@@ -293,8 +304,6 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
+ 	return pmd.pmd;
+ }
+ #else
+-#include <asm-generic/pgtable-nopmd.h>
+-
+ static inline pmdval_t native_pmd_val(pmd_t pmd)
+ {
+ 	return native_pgd_val(pmd.pud.pgd);
+@@ -334,7 +343,6 @@ typedef struct page *pgtable_t;
+ 
+ extern pteval_t __supported_pte_mask;
+ extern void set_nx(void);
+-extern int nx_enabled;
+ 
+ #define pgprot_writecombine	pgprot_writecombine
+ extern pgprot_t pgprot_writecombine(pgprot_t prot);
+diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
+index b39e194..9d44fd1 100644
+--- a/arch/x86/include/asm/preempt.h
++++ b/arch/x86/include/asm/preempt.h
+@@ -99,7 +99,7 @@ static __always_inline void __preempt_count_sub(int val)
+  */
+ static __always_inline bool __preempt_count_dec_and_test(void)
+ {
+-	GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
++	GEN_UNARY_RMWcc("decl", "incl", __preempt_count, __percpu_arg(0), "e");
+ }
+ 
+ /*
+diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
+index fdedd38..129b180 100644
+--- a/arch/x86/include/asm/processor.h
++++ b/arch/x86/include/asm/processor.h
+@@ -128,7 +128,7 @@ struct cpuinfo_x86 {
+ 	/* Index into per_cpu list: */
+ 	u16			cpu_index;
+ 	u32			microcode;
+-} __attribute__((__aligned__(SMP_CACHE_BYTES)));
++} __attribute__((__aligned__(SMP_CACHE_BYTES))) __randomize_layout;
+ 
+ #define X86_VENDOR_INTEL	0
+ #define X86_VENDOR_CYRIX	1
+@@ -199,9 +199,21 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
+ 	    : "memory");
+ }
+ 
++/* invpcid (%rdx),%rax */
++#define __ASM_INVPCID ".byte 0x66,0x0f,0x38,0x82,0x02"
++
++#define INVPCID_SINGLE_ADDRESS	0UL
++#define INVPCID_SINGLE_CONTEXT	1UL
++#define INVPCID_ALL_GLOBAL	2UL
++#define INVPCID_ALL_NONGLOBAL	3UL
++
++#define PCID_KERNEL		0UL
++#define PCID_USER		1UL
++#define PCID_NOFLUSH		(1UL << 63)
++
+ static inline void load_cr3(pgd_t *pgdir)
+ {
+-	write_cr3(__pa(pgdir));
++	write_cr3(__pa(pgdir) | PCID_KERNEL);
+ }
+ 
+ #ifdef CONFIG_X86_32
+@@ -283,7 +295,7 @@ struct tss_struct {
+ 
+ } ____cacheline_aligned;
+ 
+-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
++extern struct tss_struct init_tss[NR_CPUS];
+ 
+ /*
+  * Save the original ist values for checking stack pointers during debugging
+@@ -470,6 +482,7 @@ struct thread_struct {
+ 	unsigned short		ds;
+ 	unsigned short		fsindex;
+ 	unsigned short		gsindex;
++	unsigned short		ss;
+ #endif
+ #ifdef CONFIG_X86_32
+ 	unsigned long		ip;
+@@ -579,29 +592,8 @@ static inline void load_sp0(struct tss_struct *tss,
+ extern unsigned long mmu_cr4_features;
+ extern u32 *trampoline_cr4_features;
+ 
+-static inline void set_in_cr4(unsigned long mask)
+-{
+-	unsigned long cr4;
+-
+-	mmu_cr4_features |= mask;
+-	if (trampoline_cr4_features)
+-		*trampoline_cr4_features = mmu_cr4_features;
+-	cr4 = read_cr4();
+-	cr4 |= mask;
+-	write_cr4(cr4);
+-}
+-
+-static inline void clear_in_cr4(unsigned long mask)
+-{
+-	unsigned long cr4;
+-
+-	mmu_cr4_features &= ~mask;
+-	if (trampoline_cr4_features)
+-		*trampoline_cr4_features = mmu_cr4_features;
+-	cr4 = read_cr4();
+-	cr4 &= ~mask;
+-	write_cr4(cr4);
+-}
++extern void set_in_cr4(unsigned long mask);
++extern void clear_in_cr4(unsigned long mask);
+ 
+ typedef struct {
+ 	unsigned long		seg;
+@@ -827,11 +819,18 @@ static inline void spin_lock_prefetch(const void *x)
+  */
+ #define TASK_SIZE		PAGE_OFFSET
+ #define TASK_SIZE_MAX		TASK_SIZE
++
++#ifdef CONFIG_PAX_SEGMEXEC
++#define SEGMEXEC_TASK_SIZE	(TASK_SIZE / 2)
++#define STACK_TOP		((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE)
++#else
+ #define STACK_TOP		TASK_SIZE
+-#define STACK_TOP_MAX		STACK_TOP
++#endif
++
++#define STACK_TOP_MAX		TASK_SIZE
+ 
+ #define INIT_THREAD  {							  \
+-	.sp0			= sizeof(init_stack) + (long)&init_stack, \
++	.sp0			= sizeof(init_stack) + (long)&init_stack - 8, \
+ 	.vm86_info		= NULL,					  \
+ 	.sysenter_cs		= __KERNEL_CS,				  \
+ 	.io_bitmap_ptr		= NULL,					  \
+@@ -845,7 +844,7 @@ static inline void spin_lock_prefetch(const void *x)
+  */
+ #define INIT_TSS  {							  \
+ 	.x86_tss = {							  \
+-		.sp0		= sizeof(init_stack) + (long)&init_stack, \
++		.sp0		= sizeof(init_stack) + (long)&init_stack - 8, \
+ 		.ss0		= __KERNEL_DS,				  \
+ 		.ss1		= __KERNEL_CS,				  \
+ 		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,		  \
+@@ -856,11 +855,7 @@ static inline void spin_lock_prefetch(const void *x)
+ extern unsigned long thread_saved_pc(struct task_struct *tsk);
+ 
+ #define THREAD_SIZE_LONGS      (THREAD_SIZE/sizeof(unsigned long))
+-#define KSTK_TOP(info)                                                 \
+-({                                                                     \
+-       unsigned long *__ptr = (unsigned long *)(info);                 \
+-       (unsigned long)(&__ptr[THREAD_SIZE_LONGS]);                     \
+-})
++#define KSTK_TOP(info)         ((container_of(info, struct task_struct, tinfo))->thread.sp0)
+ 
+ /*
+  * The below -8 is to reserve 8 bytes on top of the ring0 stack.
+@@ -875,7 +870,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
+ #define task_pt_regs(task)                                             \
+ ({                                                                     \
+        struct pt_regs *__regs__;                                       \
+-       __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
++       __regs__ = (struct pt_regs *)((task)->thread.sp0);              \
+        __regs__ - 1;                                                   \
+ })
+ 
+@@ -885,13 +880,13 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
+ /*
+  * User space process size. 47bits minus one guard page.
+  */
+-#define TASK_SIZE_MAX	((1UL << 47) - PAGE_SIZE)
++#define TASK_SIZE_MAX	((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE)
+ 
+ /* This decides where the kernel will search for a free chunk of vm
+  * space during mmap's.
+  */
+ #define IA32_PAGE_OFFSET	((current->personality & ADDR_LIMIT_3GB) ? \
+-					0xc0000000 : 0xFFFFe000)
++					0xc0000000 : 0xFFFFf000)
+ 
+ #define TASK_SIZE		(test_thread_flag(TIF_ADDR32) ? \
+ 					IA32_PAGE_OFFSET : TASK_SIZE_MAX)
+@@ -902,11 +897,11 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
+ #define STACK_TOP_MAX		TASK_SIZE_MAX
+ 
+ #define INIT_THREAD  { \
+-	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
++	.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
+ }
+ 
+ #define INIT_TSS  { \
+-	.x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
++	.x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \
+ }
+ 
+ /*
+@@ -934,6 +929,10 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
+  */
+ #define TASK_UNMAPPED_BASE	(PAGE_ALIGN(TASK_SIZE / 3))
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++#define SEGMEXEC_TASK_UNMAPPED_BASE	(PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3))
++#endif
++
+ #define KSTK_EIP(task)		(task_pt_regs(task)->ip)
+ 
+ /* Get/set a process' ability to use the timestamp counter instruction */
+@@ -960,7 +959,7 @@ static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
+ 	return 0;
+ }
+ 
+-extern unsigned long arch_align_stack(unsigned long sp);
++#define arch_align_stack(x) ((x) & ~0xfUL)
+ extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
+ 
+ void default_idle(void);
+@@ -970,6 +969,6 @@ bool xen_set_default_idle(void);
+ #define xen_set_default_idle 0
+ #endif
+ 
+-void stop_this_cpu(void *dummy);
++void stop_this_cpu(void *dummy) __noreturn;
+ void df_debug(struct pt_regs *regs, long error_code);
+ #endif /* _ASM_X86_PROCESSOR_H */
+diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
+index 6205f0c..b31a4a4 100644
+--- a/arch/x86/include/asm/ptrace.h
++++ b/arch/x86/include/asm/ptrace.h
+@@ -84,28 +84,29 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
+ }
+ 
+ /*
+- * user_mode_vm(regs) determines whether a register set came from user mode.
++ * user_mode(regs) determines whether a register set came from user mode.
+  * This is true if V8086 mode was enabled OR if the register set was from
+  * protected mode with RPL-3 CS value.  This tricky test checks that with
+  * one comparison.  Many places in the kernel can bypass this full check
+- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
++ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can
++ * be used.
+  */
+-static inline int user_mode(struct pt_regs *regs)
++static inline int user_mode_novm(struct pt_regs *regs)
+ {
+ #ifdef CONFIG_X86_32
+ 	return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
+ #else
+-	return !!(regs->cs & 3);
++	return !!(regs->cs & SEGMENT_RPL_MASK);
+ #endif
+ }
+ 
+-static inline int user_mode_vm(struct pt_regs *regs)
++static inline int user_mode(struct pt_regs *regs)
+ {
+ #ifdef CONFIG_X86_32
+ 	return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
+ 		USER_RPL;
+ #else
+-	return user_mode(regs);
++	return user_mode_novm(regs);
+ #endif
+ }
+ 
+@@ -121,15 +122,16 @@ static inline int v8086_mode(struct pt_regs *regs)
+ #ifdef CONFIG_X86_64
+ static inline bool user_64bit_mode(struct pt_regs *regs)
+ {
++	unsigned long cs = regs->cs & 0xffff;
+ #ifndef CONFIG_PARAVIRT
+ 	/*
+ 	 * On non-paravirt systems, this is the only long mode CPL 3
+ 	 * selector.  We do not allow long mode selectors in the LDT.
+ 	 */
+-	return regs->cs == __USER_CS;
++	return cs == __USER_CS;
+ #else
+ 	/* Headers are too twisted for this to go in paravirt.h. */
+-	return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
++	return cs == __USER_CS || cs == pv_info.extra_user_64bit_cs;
+ #endif
+ }
+ 
+@@ -180,9 +182,11 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
+ 	 * Traps from the kernel do not save sp and ss.
+ 	 * Use the helper function to retrieve sp.
+ 	 */
+-	if (offset == offsetof(struct pt_regs, sp) &&
+-	    regs->cs == __KERNEL_CS)
+-		return kernel_stack_pointer(regs);
++	if (offset == offsetof(struct pt_regs, sp)) {
++		unsigned long cs = regs->cs & 0xffff;
++	 	if (cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS)
++			return kernel_stack_pointer(regs);
++	}
+ #endif
+ 	return *(unsigned long *)((unsigned long)regs + offset);
+ }
+diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
+index 9c6b890..5305f53 100644
+--- a/arch/x86/include/asm/realmode.h
++++ b/arch/x86/include/asm/realmode.h
+@@ -22,16 +22,14 @@ struct real_mode_header {
+ #endif
+ 	/* APM/BIOS reboot */
+ 	u32	machine_real_restart_asm;
+-#ifdef CONFIG_X86_64
+ 	u32	machine_real_restart_seg;
+-#endif
+ };
+ 
+ /* This must match data at trampoline_32/64.S */
+ struct trampoline_header {
+ #ifdef CONFIG_X86_32
+ 	u32 start;
+-	u16 gdt_pad;
++	u16 boot_cs;
+ 	u16 gdt_limit;
+ 	u32 gdt_base;
+ #else
+diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
+index a82c4f1..ac45053 100644
+--- a/arch/x86/include/asm/reboot.h
++++ b/arch/x86/include/asm/reboot.h
+@@ -6,13 +6,13 @@
+ struct pt_regs;
+ 
+ struct machine_ops {
+-	void (*restart)(char *cmd);
+-	void (*halt)(void);
+-	void (*power_off)(void);
++	void (* __noreturn restart)(char *cmd);
++	void (* __noreturn halt)(void);
++	void (* __noreturn power_off)(void);
+ 	void (*shutdown)(void);
+ 	void (*crash_shutdown)(struct pt_regs *);
+-	void (*emergency_restart)(void);
+-};
++	void (* __noreturn emergency_restart)(void);
++} __no_const;
+ 
+ extern struct machine_ops machine_ops;
+ 
+diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
+index 8f7866a..e442f20 100644
+--- a/arch/x86/include/asm/rmwcc.h
++++ b/arch/x86/include/asm/rmwcc.h
+@@ -3,7 +3,34 @@
+ 
+ #ifdef CC_HAVE_ASM_GOTO
+ 
+-#define __GEN_RMWcc(fullop, var, cc, ...)				\
++#ifdef CONFIG_PAX_REFCOUNT
++#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
++do {									\
++	asm_volatile_goto (fullop					\
++			";jno 0f\n"					\
++			fullantiop					\
++			";int $4\n0:\n"					\
++			_ASM_EXTABLE(0b, 0b)				\
++			 ";j" cc " %l[cc_label]"			\
++			: : "m" (var), ## __VA_ARGS__ 			\
++			: "memory" : cc_label);				\
++	return 0;							\
++cc_label:								\
++	return 1;							\
++} while (0)
++#else
++#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
++do {									\
++	asm_volatile_goto (fullop ";j" cc " %l[cc_label]"		\
++			: : "m" (var), ## __VA_ARGS__ 			\
++			: "memory" : cc_label);				\
++	return 0;							\
++cc_label:								\
++	return 1;							\
++} while (0)
++#endif
++
++#define __GEN_RMWcc_unchecked(fullop, var, cc, ...)			\
+ do {									\
+ 	asm_volatile_goto (fullop "; j" cc " %l[cc_label]"		\
+ 			: : "m" (var), ## __VA_ARGS__ 			\
+@@ -13,15 +40,46 @@ cc_label:								\
+ 	return 1;							\
+ } while (0)
+ 
+-#define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
+-	__GEN_RMWcc(op " " arg0, var, cc)
++#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc) 			\
++	__GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
+ 
+-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
+-	__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
++#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc) 			\
++	__GEN_RMWcc_unchecked(op " " arg0, var, cc)
++
++#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc)		\
++	__GEN_RMWcc(op " %1, " arg0, antiop " %1, " arg0, var, cc, vcon (val))
++
++#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc)	\
++	__GEN_RMWcc_unchecked(op " %1, " arg0, var, cc, vcon (val))
+ 
+ #else /* !CC_HAVE_ASM_GOTO */
+ 
+-#define __GEN_RMWcc(fullop, var, cc, ...)				\
++#ifdef CONFIG_PAX_REFCOUNT
++#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
++do {									\
++	char c;								\
++	asm volatile (fullop 						\
++			";jno 0f\n"					\
++			fullantiop					\
++			";int $4\n0:\n"					\
++			_ASM_EXTABLE(0b, 0b)				\
++			"; set" cc " %1"				\
++			: "+m" (var), "=qm" (c)				\
++			: __VA_ARGS__ : "memory");			\
++	return c != 0;							\
++} while (0)
++#else
++#define __GEN_RMWcc(fullop, fullantiop, var, cc, ...)			\
++do {									\
++	char c;								\
++	asm volatile (fullop "; set" cc " %1"				\
++			: "+m" (var), "=qm" (c)				\
++			: __VA_ARGS__ : "memory");			\
++	return c != 0;							\
++} while (0)
++#endif
++
++#define __GEN_RMWcc_unchecked(fullop, var, cc, ...)			\
+ do {									\
+ 	char c;								\
+ 	asm volatile (fullop "; set" cc " %1"				\
+@@ -30,11 +88,17 @@ do {									\
+ 	return c != 0;							\
+ } while (0)
+ 
+-#define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
+-	__GEN_RMWcc(op " " arg0, var, cc)
++#define GEN_UNARY_RMWcc(op, antiop, var, arg0, cc)			\
++	__GEN_RMWcc(op " " arg0, antiop " " arg0, var, cc)
++
++#define GEN_UNARY_RMWcc_unchecked(op, var, arg0, cc)			\
++	__GEN_RMWcc_unchecked(op " " arg0, var, cc)
++
++#define GEN_BINARY_RMWcc(op, antiop, var, vcon, val, arg0, cc)		\
++	__GEN_RMWcc(op " %2, " arg0, antiop " %2, " arg0, var, cc, vcon (val))
+ 
+-#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
+-	__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
++#define GEN_BINARY_RMWcc_unchecked(op, var, vcon, val, arg0, cc)	\
++	__GEN_RMWcc_unchecked(op " %2, " arg0, var, cc, vcon (val))
+ 
+ #endif /* CC_HAVE_ASM_GOTO */
+ 
+diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
+index cad82c9..2e5c5c1 100644
+--- a/arch/x86/include/asm/rwsem.h
++++ b/arch/x86/include/asm/rwsem.h
+@@ -64,6 +64,14 @@ static inline void __down_read(struct rw_semaphore *sem)
+ {
+ 	asm volatile("# beginning down_read\n\t"
+ 		     LOCK_PREFIX _ASM_INC "(%1)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX _ASM_DEC "(%1)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     /* adds 0x00000001 */
+ 		     "  jns        1f\n"
+ 		     "  call call_rwsem_down_read_failed\n"
+@@ -85,6 +93,14 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
+ 		     "1:\n\t"
+ 		     "  mov          %1,%2\n\t"
+ 		     "  add          %3,%2\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     "sub %3,%2\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     "  jle	     2f\n\t"
+ 		     LOCK_PREFIX "  cmpxchg  %2,%0\n\t"
+ 		     "  jnz	     1b\n\t"
+@@ -104,6 +120,14 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+ 	long tmp;
+ 	asm volatile("# beginning down_write\n\t"
+ 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     "mov %1,(%2)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     /* adds 0xffff0001, returns the old value */
+ 		     "  test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t"
+ 		     /* was the active mask 0 before? */
+@@ -155,6 +179,14 @@ static inline void __up_read(struct rw_semaphore *sem)
+ 	long tmp;
+ 	asm volatile("# beginning __up_read\n\t"
+ 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     "mov %1,(%2)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     /* subtracts 1, returns the old value */
+ 		     "  jns        1f\n\t"
+ 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
+@@ -173,6 +205,14 @@ static inline void __up_write(struct rw_semaphore *sem)
+ 	long tmp;
+ 	asm volatile("# beginning __up_write\n\t"
+ 		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     "mov %1,(%2)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     /* subtracts 0xffff0001, returns the old value */
+ 		     "  jns        1f\n\t"
+ 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
+@@ -190,6 +230,14 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
+ {
+ 	asm volatile("# beginning __downgrade_write\n\t"
+ 		     LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX _ASM_SUB "%2,(%1)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     /*
+ 		      * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
+ 		      *     0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
+@@ -208,7 +256,15 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
+  */
+ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+ {
+-	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
++	asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX _ASM_SUB "%1,%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     : "+m" (sem->count)
+ 		     : "er" (delta));
+ }
+@@ -218,7 +274,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+  */
+ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+ {
+-	return delta + xadd(&sem->count, delta);
++	return delta + xadd_check_overflow(&sem->count, delta);
+ }
+ 
+ #endif /* __KERNEL__ */
+diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
+index bcc9a2f..2d6e37b 100644
+--- a/arch/x86/include/asm/segment.h
++++ b/arch/x86/include/asm/segment.h
+@@ -64,10 +64,15 @@
+  *  26 - ESPFIX small SS
+  *  27 - per-cpu			[ offset to per-cpu data area ]
+  *  28 - stack_canary-20		[ for stack protector ]
+- *  29 - unused
+- *  30 - unused
++ *  29 - PCI BIOS CS
++ *  30 - PCI BIOS DS
+  *  31 - TSS for double fault handler
+  */
++#define GDT_ENTRY_KERNEXEC_EFI_CS	(1)
++#define GDT_ENTRY_KERNEXEC_EFI_DS	(2)
++#define __KERNEXEC_EFI_CS	(GDT_ENTRY_KERNEXEC_EFI_CS*8)
++#define __KERNEXEC_EFI_DS	(GDT_ENTRY_KERNEXEC_EFI_DS*8)
++
+ #define GDT_ENTRY_TLS_MIN	6
+ #define GDT_ENTRY_TLS_MAX 	(GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
+ 
+@@ -79,6 +84,8 @@
+ 
+ #define GDT_ENTRY_KERNEL_CS		(GDT_ENTRY_KERNEL_BASE+0)
+ 
++#define GDT_ENTRY_KERNEXEC_KERNEL_CS	(4)
++
+ #define GDT_ENTRY_KERNEL_DS		(GDT_ENTRY_KERNEL_BASE+1)
+ 
+ #define GDT_ENTRY_TSS			(GDT_ENTRY_KERNEL_BASE+4)
+@@ -104,6 +111,12 @@
+ #define __KERNEL_STACK_CANARY		0
+ #endif
+ 
++#define GDT_ENTRY_PCIBIOS_CS		(GDT_ENTRY_KERNEL_BASE+17)
++#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8)
++
++#define GDT_ENTRY_PCIBIOS_DS		(GDT_ENTRY_KERNEL_BASE+18)
++#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8)
++
+ #define GDT_ENTRY_DOUBLEFAULT_TSS	31
+ 
+ /*
+@@ -141,7 +154,7 @@
+  */
+ 
+ /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
+-#define SEGMENT_IS_PNP_CODE(x)   (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
++#define SEGMENT_IS_PNP_CODE(x)   (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16)
+ 
+ 
+ #else
+@@ -165,6 +178,8 @@
+ #define __USER32_CS   (GDT_ENTRY_DEFAULT_USER32_CS*8+3)
+ #define __USER32_DS	__USER_DS
+ 
++#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7
++
+ #define GDT_ENTRY_TSS 8	/* needs two entries */
+ #define GDT_ENTRY_LDT 10 /* needs two entries */
+ #define GDT_ENTRY_TLS_MIN 12
+@@ -173,6 +188,8 @@
+ #define GDT_ENTRY_PER_CPU 15	/* Abused to load per CPU data from limit */
+ #define __PER_CPU_SEG	(GDT_ENTRY_PER_CPU * 8 + 3)
+ 
++#define GDT_ENTRY_UDEREF_KERNEL_DS 16
++
+ /* TLS indexes for 64bit - hardcoded in arch_prctl */
+ #define FS_TLS 0
+ #define GS_TLS 1
+@@ -180,12 +197,14 @@
+ #define GS_TLS_SEL ((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
+ #define FS_TLS_SEL ((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
+ 
+-#define GDT_ENTRIES 16
++#define GDT_ENTRIES 17
+ 
+ #endif
+ 
+ #define __KERNEL_CS	(GDT_ENTRY_KERNEL_CS*8)
++#define __KERNEXEC_KERNEL_CS	(GDT_ENTRY_KERNEXEC_KERNEL_CS*8)
+ #define __KERNEL_DS	(GDT_ENTRY_KERNEL_DS*8)
++#define __UDEREF_KERNEL_DS	(GDT_ENTRY_UDEREF_KERNEL_DS*8)
+ #define __USER_DS	(GDT_ENTRY_DEFAULT_USER_DS*8+3)
+ #define __USER_CS	(GDT_ENTRY_DEFAULT_USER_CS*8+3)
+ #ifndef CONFIG_PARAVIRT
+@@ -279,7 +298,7 @@ static inline unsigned long get_limit(unsigned long segment)
+ {
+ 	unsigned long __limit;
+ 	asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
+-	return __limit + 1;
++	return __limit;
+ }
+ 
+ #endif /* !__ASSEMBLY__ */
+diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
+index 8d3120f..352b440 100644
+--- a/arch/x86/include/asm/smap.h
++++ b/arch/x86/include/asm/smap.h
+@@ -25,11 +25,40 @@
+ 
+ #include <asm/alternative-asm.h>
+ 
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define ASM_PAX_OPEN_USERLAND					\
++	661: jmp 663f;						\
++	.pushsection .altinstr_replacement, "a" ;		\
++	662: pushq %rax; nop;					\
++	.popsection ;						\
++	.pushsection .altinstructions, "a" ;			\
++	altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
++	.popsection ;						\
++	call __pax_open_userland;				\
++	popq %rax;						\
++	663:
++
++#define ASM_PAX_CLOSE_USERLAND					\
++	661: jmp 663f;						\
++	.pushsection .altinstr_replacement, "a" ;		\
++	662: pushq %rax; nop;					\
++	.popsection;						\
++	.pushsection .altinstructions, "a" ;			\
++	altinstruction_entry 661b, 662b, X86_FEATURE_STRONGUDEREF, 2, 2;\
++	.popsection;						\
++	call __pax_close_userland;				\
++	popq %rax;						\
++	663:
++#else
++#define ASM_PAX_OPEN_USERLAND
++#define ASM_PAX_CLOSE_USERLAND
++#endif
++
+ #ifdef CONFIG_X86_SMAP
+ 
+ #define ASM_CLAC							\
+ 	661: ASM_NOP3 ;							\
+-	.pushsection .altinstr_replacement, "ax" ;			\
++	.pushsection .altinstr_replacement, "a" ;			\
+ 	662: __ASM_CLAC ;						\
+ 	.popsection ;							\
+ 	.pushsection .altinstructions, "a" ;				\
+@@ -38,7 +67,7 @@
+ 
+ #define ASM_STAC							\
+ 	661: ASM_NOP3 ;							\
+-	.pushsection .altinstr_replacement, "ax" ;			\
++	.pushsection .altinstr_replacement, "a" ;			\
+ 	662: __ASM_STAC ;						\
+ 	.popsection ;							\
+ 	.pushsection .altinstructions, "a" ;				\
+@@ -56,6 +85,37 @@
+ 
+ #include <asm/alternative.h>
+ 
++#define __HAVE_ARCH_PAX_OPEN_USERLAND
++#define __HAVE_ARCH_PAX_CLOSE_USERLAND
++
++extern void __pax_open_userland(void);
++static __always_inline unsigned long pax_open_userland(void)
++{
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[open]", X86_FEATURE_STRONGUDEREF)
++		:
++		: [open] "i" (__pax_open_userland)
++		: "memory", "rax");
++#endif
++
++	return 0;
++}
++
++extern void __pax_close_userland(void);
++static __always_inline unsigned long pax_close_userland(void)
++{
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	asm volatile(ALTERNATIVE(ASM_NOP5, "call %P[close]", X86_FEATURE_STRONGUDEREF)
++		:
++		: [close] "i" (__pax_close_userland)
++		: "memory", "rax");
++#endif
++
++	return 0;
++}
++
+ #ifdef CONFIG_X86_SMAP
+ 
+ static __always_inline void clac(void)
+diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
+index 8cd27e0..7f05ec8 100644
+--- a/arch/x86/include/asm/smp.h
++++ b/arch/x86/include/asm/smp.h
+@@ -35,7 +35,7 @@ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
+ /* cpus sharing the last level cache: */
+ DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
+ DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
+-DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number);
++DECLARE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
+ 
+ static inline struct cpumask *cpu_sibling_mask(int cpu)
+ {
+@@ -78,7 +78,7 @@ struct smp_ops {
+ 
+ 	void (*send_call_func_ipi)(const struct cpumask *mask);
+ 	void (*send_call_func_single_ipi)(int cpu);
+-};
++} __no_const;
+ 
+ /* Globals due to paravirt */
+ extern void set_cpu_sibling_map(int cpu);
+@@ -190,14 +190,8 @@ extern unsigned disabled_cpus;
+ extern int safe_smp_processor_id(void);
+ 
+ #elif defined(CONFIG_X86_64_SMP)
+-#define raw_smp_processor_id() (this_cpu_read(cpu_number))
+-
+-#define stack_smp_processor_id()					\
+-({								\
+-	struct thread_info *ti;						\
+-	__asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK));	\
+-	ti->cpu;							\
+-})
++#define raw_smp_processor_id()		(this_cpu_read(cpu_number))
++#define stack_smp_processor_id()	raw_smp_processor_id()
+ #define safe_smp_processor_id()		smp_processor_id()
+ 
+ #endif
+diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
+index 0f62f54..cb5d0dd 100644
+--- a/arch/x86/include/asm/spinlock.h
++++ b/arch/x86/include/asm/spinlock.h
+@@ -222,6 +222,14 @@ static inline int arch_write_can_lock(arch_rwlock_t *lock)
+ static inline void arch_read_lock(arch_rwlock_t *rw)
+ {
+ 	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(dec) " (%0)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX READ_LOCK_SIZE(inc) " (%0)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     "jns 1f\n"
+ 		     "call __read_lock_failed\n\t"
+ 		     "1:\n"
+@@ -231,6 +239,14 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
+ static inline void arch_write_lock(arch_rwlock_t *rw)
+ {
+ 	asm volatile(LOCK_PREFIX WRITE_LOCK_SUB(%1) "(%0)\n\t"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX WRITE_LOCK_ADD(%1) "(%0)\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     "jz 1f\n"
+ 		     "call __write_lock_failed\n\t"
+ 		     "1:\n"
+@@ -260,13 +276,29 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
+ 
+ static inline void arch_read_unlock(arch_rwlock_t *rw)
+ {
+-	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0"
++	asm volatile(LOCK_PREFIX READ_LOCK_SIZE(inc) " %0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX READ_LOCK_SIZE(dec) " %0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     :"+m" (rw->lock) : : "memory");
+ }
+ 
+ static inline void arch_write_unlock(arch_rwlock_t *rw)
+ {
+-	asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0"
++	asm volatile(LOCK_PREFIX WRITE_LOCK_ADD(%1) "%0\n"
++
++#ifdef CONFIG_PAX_REFCOUNT
++		     "jno 0f\n"
++		     LOCK_PREFIX WRITE_LOCK_SUB(%1) "%0\n"
++		     "int $4\n0:\n"
++		     _ASM_EXTABLE(0b, 0b)
++#endif
++
+ 		     : "+m" (rw->write) : "i" (RW_LOCK_BIAS) : "memory");
+ }
+ 
+diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
+index 6a99859..03cb807 100644
+--- a/arch/x86/include/asm/stackprotector.h
++++ b/arch/x86/include/asm/stackprotector.h
+@@ -47,7 +47,7 @@
+  * head_32 for boot CPU and setup_per_cpu_areas() for others.
+  */
+ #define GDT_STACK_CANARY_INIT						\
+-	[GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
++	[GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17),
+ 
+ /*
+  * Initialize the stackprotector canary value.
+@@ -112,7 +112,7 @@ static inline void setup_stack_canary_segment(int cpu)
+ 
+ static inline void load_stack_canary_segment(void)
+ {
+-#ifdef CONFIG_X86_32
++#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF)
+ 	asm volatile ("mov %0, %%gs" : : "r" (0));
+ #endif
+ }
+diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
+index 70bbe39..4ae2bd4 100644
+--- a/arch/x86/include/asm/stacktrace.h
++++ b/arch/x86/include/asm/stacktrace.h
+@@ -11,28 +11,20 @@
+ 
+ extern int kstack_depth_to_print;
+ 
+-struct thread_info;
++struct task_struct;
+ struct stacktrace_ops;
+ 
+-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
+-				      unsigned long *stack,
+-				      unsigned long bp,
+-				      const struct stacktrace_ops *ops,
+-				      void *data,
+-				      unsigned long *end,
+-				      int *graph);
++typedef unsigned long walk_stack_t(struct task_struct *task,
++				   void *stack_start,
++				   unsigned long *stack,
++				   unsigned long bp,
++				   const struct stacktrace_ops *ops,
++				   void *data,
++				   unsigned long *end,
++				   int *graph);
+ 
+-extern unsigned long
+-print_context_stack(struct thread_info *tinfo,
+-		    unsigned long *stack, unsigned long bp,
+-		    const struct stacktrace_ops *ops, void *data,
+-		    unsigned long *end, int *graph);
+-
+-extern unsigned long
+-print_context_stack_bp(struct thread_info *tinfo,
+-		       unsigned long *stack, unsigned long bp,
+-		       const struct stacktrace_ops *ops, void *data,
+-		       unsigned long *end, int *graph);
++extern walk_stack_t print_context_stack;
++extern walk_stack_t print_context_stack_bp;
+ 
+ /* Generic stack tracer with callbacks */
+ 
+@@ -40,7 +32,7 @@ struct stacktrace_ops {
+ 	void (*address)(void *data, unsigned long address, int reliable);
+ 	/* On negative return stop dumping */
+ 	int (*stack)(void *data, char *name);
+-	walk_stack_t	walk_stack;
++	walk_stack_t	*walk_stack;
+ };
+ 
+ void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
+diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
+index d7f3b3b..3cc39f1 100644
+--- a/arch/x86/include/asm/switch_to.h
++++ b/arch/x86/include/asm/switch_to.h
+@@ -108,7 +108,7 @@ do {									\
+ 	     "call __switch_to\n\t"					  \
+ 	     "movq "__percpu_arg([current_task])",%%rsi\n\t"		  \
+ 	     __switch_canary						  \
+-	     "movq %P[thread_info](%%rsi),%%r8\n\t"			  \
++	     "movq "__percpu_arg([thread_info])",%%r8\n\t"		  \
+ 	     "movq %%rax,%%rdi\n\t" 					  \
+ 	     "testl  %[_tif_fork],%P[ti_flags](%%r8)\n\t"		  \
+ 	     "jnz   ret_from_fork\n\t"					  \
+@@ -119,7 +119,7 @@ do {									\
+ 	       [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
+ 	       [ti_flags] "i" (offsetof(struct thread_info, flags)),	  \
+ 	       [_tif_fork] "i" (_TIF_FORK),			  	  \
+-	       [thread_info] "i" (offsetof(struct task_struct, stack)),   \
++	       [thread_info] "m" (current_tinfo),			  \
+ 	       [current_task] "m" (current_task)			  \
+ 	       __switch_canary_iparam					  \
+ 	     : "memory", "cc" __EXTRA_CLOBBER)
+diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
+index e870ea9..0f4c275 100644
+--- a/arch/x86/include/asm/thread_info.h
++++ b/arch/x86/include/asm/thread_info.h
+@@ -10,6 +10,7 @@
+ #include <linux/compiler.h>
+ #include <asm/page.h>
+ #include <asm/types.h>
++#include <asm/percpu.h>
+ 
+ /*
+  * low level task data that entry.S needs immediate access to
+@@ -23,7 +24,6 @@ struct exec_domain;
+ #include <linux/atomic.h>
+ 
+ struct thread_info {
+-	struct task_struct	*task;		/* main task structure */
+ 	struct exec_domain	*exec_domain;	/* execution domain */
+ 	__u32			flags;		/* low level flags */
+ 	__u32			status;		/* thread synchronous flags */
+@@ -32,19 +32,13 @@ struct thread_info {
+ 	mm_segment_t		addr_limit;
+ 	struct restart_block    restart_block;
+ 	void __user		*sysenter_return;
+-#ifdef CONFIG_X86_32
+-	unsigned long           previous_esp;   /* ESP of the previous stack in
+-						   case of nested (IRQ) stacks
+-						*/
+-	__u8			supervisor_stack[0];
+-#endif
++	unsigned long		lowest_stack;
+ 	unsigned int		sig_on_uaccess_error:1;
+ 	unsigned int		uaccess_err:1;	/* uaccess failed */
+ };
+ 
+-#define INIT_THREAD_INFO(tsk)			\
++#define INIT_THREAD_INFO			\
+ {						\
+-	.task		= &tsk,			\
+ 	.exec_domain	= &default_exec_domain,	\
+ 	.flags		= 0,			\
+ 	.cpu		= 0,			\
+@@ -55,7 +49,7 @@ struct thread_info {
+ 	},					\
+ }
+ 
+-#define init_thread_info	(init_thread_union.thread_info)
++#define init_thread_info	(init_thread_union.stack)
+ #define init_stack		(init_thread_union.stack)
+ 
+ #else /* !__ASSEMBLY__ */
+@@ -95,6 +89,7 @@ struct thread_info {
+ #define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
+ #define TIF_ADDR32		29	/* 32-bit address space on 64 bits */
+ #define TIF_X32			30	/* 32-bit native x86-64 binary */
++#define TIF_GRSEC_SETXID	31	/* update credentials on syscall entry/exit */
+ 
+ #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
+ #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
+@@ -118,17 +113,18 @@ struct thread_info {
+ #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
+ #define _TIF_ADDR32		(1 << TIF_ADDR32)
+ #define _TIF_X32		(1 << TIF_X32)
++#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
+ 
+ /* work to do in syscall_trace_enter() */
+ #define _TIF_WORK_SYSCALL_ENTRY	\
+ 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |	\
+ 	 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT |	\
+-	 _TIF_NOHZ)
++	 _TIF_NOHZ | _TIF_GRSEC_SETXID)
+ 
+ /* work to do in syscall_trace_leave() */
+ #define _TIF_WORK_SYSCALL_EXIT	\
+ 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP |	\
+-	 _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)
++	 _TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ | _TIF_GRSEC_SETXID)
+ 
+ /* work to do on interrupt/exception return */
+ #define _TIF_WORK_MASK							\
+@@ -139,7 +135,7 @@ struct thread_info {
+ /* work to do on any return to user space */
+ #define _TIF_ALLWORK_MASK						\
+ 	((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT |	\
+-	_TIF_NOHZ)
++	_TIF_NOHZ | _TIF_GRSEC_SETXID)
+ 
+ /* Only used for 64 bit */
+ #define _TIF_DO_NOTIFY_MASK						\
+@@ -153,6 +149,23 @@ struct thread_info {
+ #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
+ #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
+ 
++#ifdef __ASSEMBLY__
++/* how to get the thread information struct from ASM */
++#define GET_THREAD_INFO(reg)	 \
++	mov PER_CPU_VAR(current_tinfo), reg
++
++/* use this one if reg already contains %esp */
++#define GET_THREAD_INFO_WITH_ESP(reg) GET_THREAD_INFO(reg)
++#else
++/* how to get the thread information struct from C */
++DECLARE_PER_CPU(struct thread_info *, current_tinfo);
++
++static __always_inline struct thread_info *current_thread_info(void)
++{
++	return this_cpu_read_stable(current_tinfo);
++}
++#endif
++
+ #ifdef CONFIG_X86_32
+ 
+ #define STACK_WARN	(THREAD_SIZE/8)
+@@ -169,31 +182,10 @@ struct thread_info {
+ 	sp;					\
+ })
+ 
+-/* how to get the thread information struct from C */
+-static inline struct thread_info *current_thread_info(void)
+-{
+-	return (struct thread_info *)
+-		(current_stack_pointer & ~(THREAD_SIZE - 1));
+-}
+-
+-#else /* !__ASSEMBLY__ */
+-
+-/* how to get the thread information struct from ASM */
+-#define GET_THREAD_INFO(reg)	 \
+-	movl $-THREAD_SIZE, reg; \
+-	andl %esp, reg
+-
+-/* use this one if reg already contains %esp */
+-#define GET_THREAD_INFO_WITH_ESP(reg) \
+-	andl $-THREAD_SIZE, reg
+-
+ #endif
+ 
+ #else /* X86_32 */
+ 
+-#include <asm/percpu.h>
+-#define KERNEL_STACK_OFFSET (5*8)
+-
+ /*
+  * macros/functions for gaining access to the thread information structure
+  * preempt_count needs to be 1 initially, until the scheduler is functional.
+@@ -201,27 +193,8 @@ static inline struct thread_info *current_thread_info(void)
+ #ifndef __ASSEMBLY__
+ DECLARE_PER_CPU(unsigned long, kernel_stack);
+ 
+-static inline struct thread_info *current_thread_info(void)
+-{
+-	struct thread_info *ti;
+-	ti = (void *)(this_cpu_read_stable(kernel_stack) +
+-		      KERNEL_STACK_OFFSET - THREAD_SIZE);
+-	return ti;
+-}
+-
+-#else /* !__ASSEMBLY__ */
+-
+-/* how to get the thread information struct from ASM */
+-#define GET_THREAD_INFO(reg) \
+-	movq PER_CPU_VAR(kernel_stack),reg ; \
+-	subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg
+-
+-/*
+- * Same if PER_CPU_VAR(kernel_stack) is, perhaps with some offset, already in
+- * a certain register (to be used in assembler memory operands).
+- */
+-#define THREAD_INFO(reg, off) KERNEL_STACK_OFFSET+(off)-THREAD_SIZE(reg)
+-
++/* how to get the current stack pointer from C */
++register unsigned long current_stack_pointer asm("rsp") __used;
+ #endif
+ 
+ #endif /* !X86_32 */
+@@ -280,5 +253,12 @@ static inline bool is_ia32_task(void)
+ extern void arch_task_cache_init(void);
+ extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
+ extern void arch_release_task_struct(struct task_struct *tsk);
++
++#define __HAVE_THREAD_FUNCTIONS
++#define task_thread_info(task)	(&(task)->tinfo)
++#define task_stack_page(task)	((task)->stack)
++#define setup_thread_stack(p, org) do {} while (0)
++#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1)
++
+ #endif
+ #endif /* _ASM_X86_THREAD_INFO_H */
+diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
+index 04905bf..1178cdf 100644
+--- a/arch/x86/include/asm/tlbflush.h
++++ b/arch/x86/include/asm/tlbflush.h
+@@ -17,18 +17,44 @@
+ 
+ static inline void __native_flush_tlb(void)
+ {
++	if (static_cpu_has(X86_FEATURE_INVPCID)) {
++		u64 descriptor[2];
++
++		descriptor[0] = PCID_KERNEL;
++		asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_NONGLOBAL) : "memory");
++		return;
++	}
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	if (static_cpu_has(X86_FEATURE_PCID)) {
++		unsigned int cpu = raw_get_cpu();
++
++		native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER);
++		native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL);
++		raw_put_cpu_no_resched();
++		return;
++	}
++#endif
++
+ 	native_write_cr3(native_read_cr3());
+ }
+ 
+ static inline void __native_flush_tlb_global_irq_disabled(void)
+ {
+-	unsigned long cr4;
++	if (static_cpu_has(X86_FEATURE_INVPCID)) {
++		u64 descriptor[2];
+ 
+-	cr4 = native_read_cr4();
+-	/* clear PGE */
+-	native_write_cr4(cr4 & ~X86_CR4_PGE);
+-	/* write old PGE again and flush TLBs */
+-	native_write_cr4(cr4);
++		descriptor[0] = PCID_KERNEL;
++		asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_ALL_GLOBAL) : "memory");
++	} else {
++		unsigned long cr4;
++
++		cr4 = native_read_cr4();
++		/* clear PGE */
++		native_write_cr4(cr4 & ~X86_CR4_PGE);
++		/* write old PGE again and flush TLBs */
++		native_write_cr4(cr4);
++	}
+ }
+ 
+ static inline void __native_flush_tlb_global(void)
+@@ -49,6 +75,41 @@ static inline void __native_flush_tlb_global(void)
+ 
+ static inline void __native_flush_tlb_single(unsigned long addr)
+ {
++	if (static_cpu_has(X86_FEATURE_INVPCID)) {
++		u64 descriptor[2];
++
++		descriptor[0] = PCID_KERNEL;
++		descriptor[1] = addr;
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++		if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) || addr >= TASK_SIZE_MAX) {
++			if (addr < TASK_SIZE_MAX)
++				descriptor[1] += pax_user_shadow_base;
++			asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
++		}
++
++		descriptor[0] = PCID_USER;
++		descriptor[1] = addr;
++#endif
++
++		asm volatile(__ASM_INVPCID : : "d"(&descriptor), "a"(INVPCID_SINGLE_ADDRESS) : "memory");
++		return;
++	}
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	if (static_cpu_has(X86_FEATURE_PCID)) {
++		unsigned int cpu = raw_get_cpu();
++
++		native_write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
++		asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
++		native_write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
++		raw_put_cpu_no_resched();
++
++		if (!static_cpu_has(X86_FEATURE_STRONGUDEREF) && addr < TASK_SIZE_MAX)
++			addr += pax_user_shadow_base;
++	}
++#endif
++
+ 	asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
+ }
+ 
+diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
+index 0d592e0..a9e3d4a 100644
+--- a/arch/x86/include/asm/uaccess.h
++++ b/arch/x86/include/asm/uaccess.h
+@@ -7,6 +7,7 @@
+ #include <linux/compiler.h>
+ #include <linux/thread_info.h>
+ #include <linux/string.h>
++#include <linux/spinlock.h>
+ #include <asm/asm.h>
+ #include <asm/page.h>
+ #include <asm/smap.h>
+@@ -29,7 +30,12 @@
+ 
+ #define get_ds()	(KERNEL_DS)
+ #define get_fs()	(current_thread_info()->addr_limit)
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
++void __set_fs(mm_segment_t x);
++void set_fs(mm_segment_t x);
++#else
+ #define set_fs(x)	(current_thread_info()->addr_limit = (x))
++#endif
+ 
+ #define segment_eq(a, b)	((a).seg == (b).seg)
+ 
+@@ -85,8 +91,36 @@ static inline bool __chk_range_not_ok(unsigned long addr, unsigned long size, un
+  * checks that the pointer is in the user space range - after calling
+  * this function, memory access functions may still return -EFAULT.
+  */
+-#define access_ok(type, addr, size) \
+-	likely(!__range_not_ok(addr, size, user_addr_max()))
++extern int _cond_resched(void);
++#define access_ok_noprefault(type, addr, size) (likely(!__range_not_ok(addr, size, user_addr_max())))
++#define access_ok(type, addr, size)					\
++({									\
++	unsigned long __size = size;					\
++	unsigned long __addr = (unsigned long)addr;			\
++	bool __ret_ao = __range_not_ok(__addr, __size, user_addr_max()) == 0;\
++	if (__ret_ao && __size) {					\
++		unsigned long __addr_ao = __addr & PAGE_MASK;		\
++		unsigned long __end_ao = __addr + __size - 1;		\
++		if (unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) {	\
++			while (__addr_ao <= __end_ao) {			\
++				char __c_ao;				\
++				__addr_ao += PAGE_SIZE;			\
++				if (__size > PAGE_SIZE)			\
++					_cond_resched();		\
++				if (__get_user(__c_ao, (char __user *)__addr))	\
++					break;				\
++				if (type != VERIFY_WRITE) {		\
++					__addr = __addr_ao;		\
++					continue;			\
++				}					\
++				if (__put_user(__c_ao, (char __user *)__addr))	\
++					break;				\
++				__addr = __addr_ao;			\
++			}						\
++		}							\
++	}								\
++	__ret_ao;							\
++})
+ 
+ /*
+  * The exception table consists of pairs of addresses relative to the
+@@ -134,11 +168,13 @@ extern int __get_user_8(void);
+ extern int __get_user_bad(void);
+ 
+ /*
+- * This is a type: either unsigned long, if the argument fits into
+- * that type, or otherwise unsigned long long.
++ * This is a type: either (un)signed int, if the argument fits into
++ * that type, or otherwise (un)signed long long.
+  */
+ #define __inttype(x) \
+-__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
++__typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0U),		\
++	__builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0ULL, 0LL),\
++	__builtin_choose_expr(__type_is_unsigned(__typeof__(x)), 0U, 0)))
+ 
+ /**
+  * get_user: - Get a simple variable from user space.
+@@ -176,10 +212,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
+ 	register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX);		\
+ 	__chk_user_ptr(ptr);						\
+ 	might_fault();							\
++	pax_open_userland();						\
+ 	asm volatile("call __get_user_%P3"				\
+ 		     : "=a" (__ret_gu), "=r" (__val_gu)			\
+ 		     : "0" (ptr), "i" (sizeof(*(ptr))));		\
+ 	(x) = (__typeof__(*(ptr))) __val_gu;				\
++	pax_close_userland();						\
+ 	__ret_gu;							\
+ })
+ 
+@@ -187,13 +225,21 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
+ 	asm volatile("call __put_user_" #size : "=a" (__ret_pu)	\
+ 		     : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
+ 
+-
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define __copyuser_seg "gs;"
++#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n"
++#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n"
++#else
++#define __copyuser_seg
++#define __COPYUSER_SET_ES
++#define __COPYUSER_RESTORE_ES
++#endif
+ 
+ #ifdef CONFIG_X86_32
+ #define __put_user_asm_u64(x, addr, err, errret)			\
+ 	asm volatile(ASM_STAC "\n"					\
+-		     "1:	movl %%eax,0(%2)\n"			\
+-		     "2:	movl %%edx,4(%2)\n"			\
++		     "1:	"__copyuser_seg"movl %%eax,0(%2)\n"	\
++		     "2:	"__copyuser_seg"movl %%edx,4(%2)\n"	\
+ 		     "3: " ASM_CLAC "\n"				\
+ 		     ".section .fixup,\"ax\"\n"				\
+ 		     "4:	movl %3,%0\n"				\
+@@ -206,8 +252,8 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
+ 
+ #define __put_user_asm_ex_u64(x, addr)					\
+ 	asm volatile(ASM_STAC "\n"					\
+-		     "1:	movl %%eax,0(%1)\n"			\
+-		     "2:	movl %%edx,4(%1)\n"			\
++		     "1:	"__copyuser_seg"movl %%eax,0(%1)\n"	\
++		     "2:	"__copyuser_seg"movl %%edx,4(%1)\n"	\
+ 		     "3: " ASM_CLAC "\n"				\
+ 		     _ASM_EXTABLE_EX(1b, 2b)				\
+ 		     _ASM_EXTABLE_EX(2b, 3b)				\
+@@ -257,7 +303,8 @@ extern void __put_user_8(void);
+ 	__typeof__(*(ptr)) __pu_val;				\
+ 	__chk_user_ptr(ptr);					\
+ 	might_fault();						\
+-	__pu_val = x;						\
++	__pu_val = (x);						\
++	pax_open_userland();					\
+ 	switch (sizeof(*(ptr))) {				\
+ 	case 1:							\
+ 		__put_user_x(1, __pu_val, ptr, __ret_pu);	\
+@@ -275,6 +322,7 @@ extern void __put_user_8(void);
+ 		__put_user_x(X, __pu_val, ptr, __ret_pu);	\
+ 		break;						\
+ 	}							\
++	pax_close_userland();					\
+ 	__ret_pu;						\
+ })
+ 
+@@ -355,8 +403,10 @@ do {									\
+ } while (0)
+ 
+ #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
++do {									\
++	pax_open_userland();						\
+ 	asm volatile(ASM_STAC "\n"					\
+-		     "1:	mov"itype" %2,%"rtype"1\n"		\
++		     "1:	"__copyuser_seg"mov"itype" %2,%"rtype"1\n"\
+ 		     "2: " ASM_CLAC "\n"				\
+ 		     ".section .fixup,\"ax\"\n"				\
+ 		     "3:	mov %3,%0\n"				\
+@@ -364,8 +414,10 @@ do {									\
+ 		     "	jmp 2b\n"					\
+ 		     ".previous\n"					\
+ 		     _ASM_EXTABLE(1b, 3b)				\
+-		     : "=r" (err), ltype(x)				\
+-		     : "m" (__m(addr)), "i" (errret), "0" (err))
++		     : "=r" (err), ltype (x)				\
++		     : "m" (__m(addr)), "i" (errret), "0" (err));	\
++	pax_close_userland();						\
++} while (0)
+ 
+ #define __get_user_size_ex(x, ptr, size)				\
+ do {									\
+@@ -389,7 +441,7 @@ do {									\
+ } while (0)
+ 
+ #define __get_user_asm_ex(x, addr, itype, rtype, ltype)			\
+-	asm volatile("1:	mov"itype" %1,%"rtype"0\n"		\
++	asm volatile("1:	"__copyuser_seg"mov"itype" %1,%"rtype"0\n"\
+ 		     "2:\n"						\
+ 		     _ASM_EXTABLE_EX(1b, 2b)				\
+ 		     : ltype(x) : "m" (__m(addr)))
+@@ -406,13 +458,24 @@ do {									\
+ 	int __gu_err;							\
+ 	unsigned long __gu_val;						\
+ 	__get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT);	\
+-	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
++	(x) = (__typeof__(*(ptr)))__gu_val;				\
+ 	__gu_err;							\
+ })
+ 
+ /* FIXME: this hack is definitely wrong -AK */
+ struct __large_struct { unsigned long buf[100]; };
+-#define __m(x) (*(struct __large_struct __user *)(x))
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define ____m(x)					\
++({							\
++	unsigned long ____x = (unsigned long)(x);	\
++	if (____x < pax_user_shadow_base)		\
++		____x += pax_user_shadow_base;		\
++	(typeof(x))____x;				\
++})
++#else
++#define ____m(x) (x)
++#endif
++#define __m(x) (*(struct __large_struct __user *)____m(x))
+ 
+ /*
+  * Tell gcc we read from memory instead of writing: this is because
+@@ -420,8 +483,10 @@ struct __large_struct { unsigned long buf[100]; };
+  * aliasing issues.
+  */
+ #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
++do {									\
++	pax_open_userland();						\
+ 	asm volatile(ASM_STAC "\n"					\
+-		     "1:	mov"itype" %"rtype"1,%2\n"		\
++		     "1:	"__copyuser_seg"mov"itype" %"rtype"1,%2\n"\
+ 		     "2: " ASM_CLAC "\n"				\
+ 		     ".section .fixup,\"ax\"\n"				\
+ 		     "3:	mov %3,%0\n"				\
+@@ -429,10 +494,12 @@ struct __large_struct { unsigned long buf[100]; };
+ 		     ".previous\n"					\
+ 		     _ASM_EXTABLE(1b, 3b)				\
+ 		     : "=r"(err)					\
+-		     : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
++		     : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err));\
++	pax_close_userland();						\
++} while (0)
+ 
+ #define __put_user_asm_ex(x, addr, itype, rtype, ltype)			\
+-	asm volatile("1:	mov"itype" %"rtype"0,%1\n"		\
++	asm volatile("1:	"__copyuser_seg"mov"itype" %"rtype"0,%1\n"\
+ 		     "2:\n"						\
+ 		     _ASM_EXTABLE_EX(1b, 2b)				\
+ 		     : : ltype(x), "m" (__m(addr)))
+@@ -442,11 +509,13 @@ struct __large_struct { unsigned long buf[100]; };
+  */
+ #define uaccess_try	do {						\
+ 	current_thread_info()->uaccess_err = 0;				\
++	pax_open_userland();						\
+ 	stac();								\
+ 	barrier();
+ 
+ #define uaccess_catch(err)						\
+ 	clac();								\
++	pax_close_userland();						\
+ 	(err) |= (current_thread_info()->uaccess_err ? -EFAULT : 0);	\
+ } while (0)
+ 
+@@ -471,8 +540,12 @@ struct __large_struct { unsigned long buf[100]; };
+  * On error, the variable @x is set to zero.
+  */
+ 
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define __get_user(x, ptr)	get_user((x), (ptr))
++#else
+ #define __get_user(x, ptr)						\
+ 	__get_user_nocheck((x), (ptr), sizeof(*(ptr)))
++#endif
+ 
+ /**
+  * __put_user: - Write a simple value into user space, with less checking.
+@@ -494,8 +567,12 @@ struct __large_struct { unsigned long buf[100]; };
+  * Returns zero on success, or -EFAULT on error.
+  */
+ 
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define __put_user(x, ptr)	put_user((x), (ptr))
++#else
+ #define __put_user(x, ptr)						\
+ 	__put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
++#endif
+ 
+ #define __get_user_unaligned __get_user
+ #define __put_user_unaligned __put_user
+@@ -513,7 +590,7 @@ struct __large_struct { unsigned long buf[100]; };
+ #define get_user_ex(x, ptr)	do {					\
+ 	unsigned long __gue_val;					\
+ 	__get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr))));	\
+-	(x) = (__force __typeof__(*(ptr)))__gue_val;			\
++	(x) = (__typeof__(*(ptr)))__gue_val;				\
+ } while (0)
+ 
+ #define put_user_try		uaccess_try
+@@ -542,18 +619,19 @@ extern void __cmpxchg_wrong_size(void)
+ 	__typeof__(ptr) __uval = (uval);				\
+ 	__typeof__(*(ptr)) __old = (old);				\
+ 	__typeof__(*(ptr)) __new = (new);				\
++	pax_open_userland();						\
+ 	switch (size) {							\
+ 	case 1:								\
+ 	{								\
+ 		asm volatile("\t" ASM_STAC "\n"				\
+-			"1:\t" LOCK_PREFIX "cmpxchgb %4, %2\n"		\
++			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgb %4, %2\n"\
+ 			"2:\t" ASM_CLAC "\n"				\
+ 			"\t.section .fixup, \"ax\"\n"			\
+ 			"3:\tmov     %3, %0\n"				\
+ 			"\tjmp     2b\n"				\
+ 			"\t.previous\n"					\
+ 			_ASM_EXTABLE(1b, 3b)				\
+-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
++			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
+ 			: "i" (-EFAULT), "q" (__new), "1" (__old)	\
+ 			: "memory"					\
+ 		);							\
+@@ -562,14 +640,14 @@ extern void __cmpxchg_wrong_size(void)
+ 	case 2:								\
+ 	{								\
+ 		asm volatile("\t" ASM_STAC "\n"				\
+-			"1:\t" LOCK_PREFIX "cmpxchgw %4, %2\n"		\
++			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgw %4, %2\n"\
+ 			"2:\t" ASM_CLAC "\n"				\
+ 			"\t.section .fixup, \"ax\"\n"			\
+ 			"3:\tmov     %3, %0\n"				\
+ 			"\tjmp     2b\n"				\
+ 			"\t.previous\n"					\
+ 			_ASM_EXTABLE(1b, 3b)				\
+-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
++			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
+ 			: "i" (-EFAULT), "r" (__new), "1" (__old)	\
+ 			: "memory"					\
+ 		);							\
+@@ -578,14 +656,14 @@ extern void __cmpxchg_wrong_size(void)
+ 	case 4:								\
+ 	{								\
+ 		asm volatile("\t" ASM_STAC "\n"				\
+-			"1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n"		\
++			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n"\
+ 			"2:\t" ASM_CLAC "\n"				\
+ 			"\t.section .fixup, \"ax\"\n"			\
+ 			"3:\tmov     %3, %0\n"				\
+ 			"\tjmp     2b\n"				\
+ 			"\t.previous\n"					\
+ 			_ASM_EXTABLE(1b, 3b)				\
+-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
++			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
+ 			: "i" (-EFAULT), "r" (__new), "1" (__old)	\
+ 			: "memory"					\
+ 		);							\
+@@ -597,14 +675,14 @@ extern void __cmpxchg_wrong_size(void)
+ 			__cmpxchg_wrong_size();				\
+ 									\
+ 		asm volatile("\t" ASM_STAC "\n"				\
+-			"1:\t" LOCK_PREFIX "cmpxchgq %4, %2\n"		\
++			"1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgq %4, %2\n"\
+ 			"2:\t" ASM_CLAC "\n"				\
+ 			"\t.section .fixup, \"ax\"\n"			\
+ 			"3:\tmov     %3, %0\n"				\
+ 			"\tjmp     2b\n"				\
+ 			"\t.previous\n"					\
+ 			_ASM_EXTABLE(1b, 3b)				\
+-			: "+r" (__ret), "=a" (__old), "+m" (*(ptr))	\
++			: "+r" (__ret), "=a" (__old), "+m" (*____m(ptr))\
+ 			: "i" (-EFAULT), "r" (__new), "1" (__old)	\
+ 			: "memory"					\
+ 		);							\
+@@ -613,6 +691,7 @@ extern void __cmpxchg_wrong_size(void)
+ 	default:							\
+ 		__cmpxchg_wrong_size();					\
+ 	}								\
++	pax_close_userland();						\
+ 	*__uval = __old;						\
+ 	__ret;								\
+ })
+@@ -636,17 +715,6 @@ extern struct movsl_mask {
+ 
+ #define ARCH_HAS_NOCACHE_UACCESS 1
+ 
+-#ifdef CONFIG_X86_32
+-# include <asm/uaccess_32.h>
+-#else
+-# include <asm/uaccess_64.h>
+-#endif
+-
+-unsigned long __must_check _copy_from_user(void *to, const void __user *from,
+-					   unsigned n);
+-unsigned long __must_check _copy_to_user(void __user *to, const void *from,
+-					 unsigned n);
+-
+ #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+ # define copy_user_diag __compiletime_error
+ #else
+@@ -656,7 +724,7 @@ unsigned long __must_check _copy_to_user(void __user *to, const void *from,
+ extern void copy_user_diag("copy_from_user() buffer size is too small")
+ copy_from_user_overflow(void);
+ extern void copy_user_diag("copy_to_user() buffer size is too small")
+-copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
++copy_to_user_overflow(void);
+ 
+ #undef copy_user_diag
+ 
+@@ -669,7 +737,7 @@ __copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
+ 
+ extern void
+ __compiletime_warning("copy_to_user() buffer size is not provably correct")
+-__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
++__copy_to_user_overflow(void) __asm__("copy_to_user_overflow");
+ #define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
+ 
+ #else
+@@ -684,10 +752,16 @@ __copy_from_user_overflow(int size, unsigned long count)
+ 
+ #endif
+ 
++#ifdef CONFIG_X86_32
++# include <asm/uaccess_32.h>
++#else
++# include <asm/uaccess_64.h>
++#endif
++
+ static inline unsigned long __must_check
+ copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+-	int sz = __compiletime_object_size(to);
++	size_t sz = __compiletime_object_size(to);
+ 
+ 	might_fault();
+ 
+@@ -709,12 +783,15 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
+ 	 * case, and do only runtime checking for non-constant sizes.
+ 	 */
+ 
+-	if (likely(sz < 0 || sz >= n))
+-		n = _copy_from_user(to, from, n);
+-	else if(__builtin_constant_p(n))
+-		copy_from_user_overflow();
+-	else
+-		__copy_from_user_overflow(sz, n);
++	if (likely(sz != (size_t)-1  && sz < n)) {
++		 if(__builtin_constant_p(n))
++			copy_from_user_overflow();
++		else
++			__copy_from_user_overflow(sz, n);
++	} else if (access_ok(VERIFY_READ, from, n))
++		n = __copy_from_user(to, from, n);
++	else if ((long)n > 0)
++		memset(to, 0, n);
+ 
+ 	return n;
+ }
+@@ -722,17 +799,18 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
+ static inline unsigned long __must_check
+ copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
+-	int sz = __compiletime_object_size(from);
++	size_t sz = __compiletime_object_size(from);
+ 
+ 	might_fault();
+ 
+ 	/* See the comment in copy_from_user() above. */
+-	if (likely(sz < 0 || sz >= n))
+-		n = _copy_to_user(to, from, n);
+-	else if(__builtin_constant_p(n))
+-		copy_to_user_overflow();
+-	else
+-		__copy_to_user_overflow(sz, n);
++	if (likely(sz != (size_t)-1  && sz < n)) {
++		 if(__builtin_constant_p(n))
++			copy_to_user_overflow();
++		else
++			__copy_to_user_overflow(sz, n);
++	} else if (access_ok(VERIFY_WRITE, to, n))
++		n = __copy_to_user(to, from, n);
+ 
+ 	return n;
+ }
+diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
+index 3c03a5d..1071638 100644
+--- a/arch/x86/include/asm/uaccess_32.h
++++ b/arch/x86/include/asm/uaccess_32.h
+@@ -43,6 +43,11 @@ unsigned long __must_check __copy_from_user_ll_nocache_nozero
+ static __always_inline unsigned long __must_check
+ __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
++	check_object_size(from, n, true);
++
+ 	if (__builtin_constant_p(n)) {
+ 		unsigned long ret;
+ 
+@@ -82,12 +87,16 @@ static __always_inline unsigned long __must_check
+ __copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
+ 	might_fault();
++
+ 	return __copy_to_user_inatomic(to, from, n);
+ }
+ 
+ static __always_inline unsigned long
+ __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
+ {
++	if ((long)n < 0)
++		return n;
++
+ 	/* Avoid zeroing the tail if the copy fails..
+ 	 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
+ 	 * but as the zeroing behaviour is only significant when n is not
+@@ -137,6 +146,12 @@ static __always_inline unsigned long
+ __copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+ 	might_fault();
++
++	if ((long)n < 0)
++		return n;
++
++	check_object_size(to, n, false);
++
+ 	if (__builtin_constant_p(n)) {
+ 		unsigned long ret;
+ 
+@@ -159,6 +174,10 @@ static __always_inline unsigned long __copy_from_user_nocache(void *to,
+ 				const void __user *from, unsigned long n)
+ {
+ 	might_fault();
++
++	if ((long)n < 0)
++		return n;
++
+ 	if (__builtin_constant_p(n)) {
+ 		unsigned long ret;
+ 
+@@ -181,7 +200,10 @@ static __always_inline unsigned long
+ __copy_from_user_inatomic_nocache(void *to, const void __user *from,
+ 				  unsigned long n)
+ {
+-       return __copy_from_user_ll_nocache_nozero(to, from, n);
++	if ((long)n < 0)
++		return n;
++
++	return __copy_from_user_ll_nocache_nozero(to, from, n);
+ }
+ 
+ #endif /* _ASM_X86_UACCESS_32_H */
+diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
+index 12a26b9..206c200 100644
+--- a/arch/x86/include/asm/uaccess_64.h
++++ b/arch/x86/include/asm/uaccess_64.h
+@@ -10,6 +10,9 @@
+ #include <asm/alternative.h>
+ #include <asm/cpufeature.h>
+ #include <asm/page.h>
++#include <asm/pgtable.h>
++
++#define set_fs(x)	(current_thread_info()->addr_limit = (x))
+ 
+ /*
+  * Copy To/From Userspace
+@@ -17,14 +20,14 @@
+ 
+ /* Handles exceptions in both to and from, but doesn't do access_ok */
+ __must_check unsigned long
+-copy_user_enhanced_fast_string(void *to, const void *from, unsigned len);
++copy_user_enhanced_fast_string(void *to, const void *from, unsigned len) __size_overflow(3);
+ __must_check unsigned long
+-copy_user_generic_string(void *to, const void *from, unsigned len);
++copy_user_generic_string(void *to, const void *from, unsigned len) __size_overflow(3);
+ __must_check unsigned long
+-copy_user_generic_unrolled(void *to, const void *from, unsigned len);
++copy_user_generic_unrolled(void *to, const void *from, unsigned len) __size_overflow(3);
+ 
+ static __always_inline __must_check unsigned long
+-copy_user_generic(void *to, const void *from, unsigned len)
++copy_user_generic(void *to, const void *from, unsigned long len)
+ {
+ 	unsigned ret;
+ 
+@@ -46,121 +49,170 @@ copy_user_generic(void *to, const void *from, unsigned len)
+ }
+ 
+ __must_check unsigned long
+-copy_in_user(void __user *to, const void __user *from, unsigned len);
++copy_in_user(void __user *to, const void __user *from, unsigned long len);
+ 
+ static __always_inline __must_check
+-int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
++unsigned long __copy_from_user_nocheck(void *dst, const void __user *src, unsigned long size)
+ {
+-	int ret = 0;
++	size_t sz = __compiletime_object_size(dst);
++	unsigned ret = 0;
++
++	if (size > INT_MAX)
++		return size;
++
++	check_object_size(dst, size, false);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (!access_ok_noprefault(VERIFY_READ, src, size))
++		return size;
++#endif
++
++	if (unlikely(sz != (size_t)-1 && sz < size)) {
++		 if(__builtin_constant_p(size))
++			copy_from_user_overflow();
++		else
++			__copy_from_user_overflow(sz, size);
++		return size;
++	}
+ 
+ 	if (!__builtin_constant_p(size))
+-		return copy_user_generic(dst, (__force void *)src, size);
++		return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
+ 	switch (size) {
+-	case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
++	case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src,
+ 			      ret, "b", "b", "=q", 1);
+ 		return ret;
+-	case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
++	case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src,
+ 			      ret, "w", "w", "=r", 2);
+ 		return ret;
+-	case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
++	case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src,
+ 			      ret, "l", "k", "=r", 4);
+ 		return ret;
+-	case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
++	case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
+ 			      ret, "q", "", "=r", 8);
+ 		return ret;
+ 	case 10:
+-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
++		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
+ 			       ret, "q", "", "=r", 10);
+ 		if (unlikely(ret))
+ 			return ret;
+ 		__get_user_asm(*(u16 *)(8 + (char *)dst),
+-			       (u16 __user *)(8 + (char __user *)src),
++			       (const u16 __user *)(8 + (const char __user *)src),
+ 			       ret, "w", "w", "=r", 2);
+ 		return ret;
+ 	case 16:
+-		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
++		__get_user_asm(*(u64 *)dst, (const u64 __user *)src,
+ 			       ret, "q", "", "=r", 16);
+ 		if (unlikely(ret))
+ 			return ret;
+ 		__get_user_asm(*(u64 *)(8 + (char *)dst),
+-			       (u64 __user *)(8 + (char __user *)src),
++			       (const u64 __user *)(8 + (const char __user *)src),
+ 			       ret, "q", "", "=r", 8);
+ 		return ret;
+ 	default:
+-		return copy_user_generic(dst, (__force void *)src, size);
++		return copy_user_generic(dst, (__force_kernel const void *)____m(src), size);
+ 	}
+ }
+ 
+ static __always_inline __must_check
+-int __copy_from_user(void *dst, const void __user *src, unsigned size)
++unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long size)
+ {
+ 	might_fault();
+ 	return __copy_from_user_nocheck(dst, src, size);
+ }
+ 
+ static __always_inline __must_check
+-int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
++unsigned long __copy_to_user_nocheck(void __user *dst, const void *src, unsigned long size)
+ {
+-	int ret = 0;
++	size_t sz = __compiletime_object_size(src);
++	unsigned ret = 0;
++
++	if (size > INT_MAX)
++		return size;
++
++	check_object_size(src, size, true);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
++		return size;
++#endif
++
++	if (unlikely(sz != (size_t)-1 && sz < size)) {
++		 if(__builtin_constant_p(size))
++			copy_to_user_overflow();
++		else
++			__copy_to_user_overflow(sz, size);
++		return size;
++	}
+ 
+ 	if (!__builtin_constant_p(size))
+-		return copy_user_generic((__force void *)dst, src, size);
++		return copy_user_generic((__force_kernel void *)____m(dst), src, size);
+ 	switch (size) {
+-	case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
++	case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst,
+ 			      ret, "b", "b", "iq", 1);
+ 		return ret;
+-	case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
++	case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst,
+ 			      ret, "w", "w", "ir", 2);
+ 		return ret;
+-	case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
++	case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst,
+ 			      ret, "l", "k", "ir", 4);
+ 		return ret;
+-	case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
++	case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
+ 			      ret, "q", "", "er", 8);
+ 		return ret;
+ 	case 10:
+-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
++		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
+ 			       ret, "q", "", "er", 10);
+ 		if (unlikely(ret))
+ 			return ret;
+ 		asm("":::"memory");
+-		__put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
++		__put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst,
+ 			       ret, "w", "w", "ir", 2);
+ 		return ret;
+ 	case 16:
+-		__put_user_asm(*(u64 *)src, (u64 __user *)dst,
++		__put_user_asm(*(const u64 *)src, (u64 __user *)dst,
+ 			       ret, "q", "", "er", 16);
+ 		if (unlikely(ret))
+ 			return ret;
+ 		asm("":::"memory");
+-		__put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
++		__put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst,
+ 			       ret, "q", "", "er", 8);
+ 		return ret;
+ 	default:
+-		return copy_user_generic((__force void *)dst, src, size);
++		return copy_user_generic((__force_kernel void *)____m(dst), src, size);
+ 	}
+ }
+ 
+ static __always_inline __must_check
+-int __copy_to_user(void __user *dst, const void *src, unsigned size)
++unsigned long __copy_to_user(void __user *dst, const void *src, unsigned long size)
+ {
+ 	might_fault();
+ 	return __copy_to_user_nocheck(dst, src, size);
+ }
+ 
+ static __always_inline __must_check
+-int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
++unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+ {
+-	int ret = 0;
++	unsigned ret = 0;
+ 
+ 	might_fault();
++
++	if (size > INT_MAX)
++		return size;
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (!access_ok_noprefault(VERIFY_READ, src, size))
++		return size;
++	if (!access_ok_noprefault(VERIFY_WRITE, dst, size))
++		return size;
++#endif
++
+ 	if (!__builtin_constant_p(size))
+-		return copy_user_generic((__force void *)dst,
+-					 (__force void *)src, size);
++		return copy_user_generic((__force_kernel void *)____m(dst),
++					 (__force_kernel const void *)____m(src), size);
+ 	switch (size) {
+ 	case 1: {
+ 		u8 tmp;
+-		__get_user_asm(tmp, (u8 __user *)src,
++		__get_user_asm(tmp, (const u8 __user *)src,
+ 			       ret, "b", "b", "=q", 1);
+ 		if (likely(!ret))
+ 			__put_user_asm(tmp, (u8 __user *)dst,
+@@ -169,7 +221,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+ 	}
+ 	case 2: {
+ 		u16 tmp;
+-		__get_user_asm(tmp, (u16 __user *)src,
++		__get_user_asm(tmp, (const u16 __user *)src,
+ 			       ret, "w", "w", "=r", 2);
+ 		if (likely(!ret))
+ 			__put_user_asm(tmp, (u16 __user *)dst,
+@@ -179,7 +231,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+ 
+ 	case 4: {
+ 		u32 tmp;
+-		__get_user_asm(tmp, (u32 __user *)src,
++		__get_user_asm(tmp, (const u32 __user *)src,
+ 			       ret, "l", "k", "=r", 4);
+ 		if (likely(!ret))
+ 			__put_user_asm(tmp, (u32 __user *)dst,
+@@ -188,7 +240,7 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+ 	}
+ 	case 8: {
+ 		u64 tmp;
+-		__get_user_asm(tmp, (u64 __user *)src,
++		__get_user_asm(tmp, (const u64 __user *)src,
+ 			       ret, "q", "", "=r", 8);
+ 		if (likely(!ret))
+ 			__put_user_asm(tmp, (u64 __user *)dst,
+@@ -196,41 +248,58 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
+ 		return ret;
+ 	}
+ 	default:
+-		return copy_user_generic((__force void *)dst,
+-					 (__force void *)src, size);
++		return copy_user_generic((__force_kernel void *)____m(dst),
++					 (__force_kernel const void *)____m(src), size);
+ 	}
+ }
+ 
+-static __must_check __always_inline int
+-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
++static __must_check __always_inline unsigned long
++__copy_from_user_inatomic(void *dst, const void __user *src, unsigned long size)
+ {
+ 	return __copy_from_user_nocheck(dst, src, size);
+ }
+ 
+-static __must_check __always_inline int
+-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
++static __must_check __always_inline unsigned long
++__copy_to_user_inatomic(void __user *dst, const void *src, unsigned long size)
+ {
+ 	return __copy_to_user_nocheck(dst, src, size);
+ }
+ 
+-extern long __copy_user_nocache(void *dst, const void __user *src,
+-				unsigned size, int zerorest);
++extern unsigned long __copy_user_nocache(void *dst, const void __user *src,
++				unsigned long size, int zerorest);
+ 
+-static inline int
+-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
++static inline unsigned long
++__copy_from_user_nocache(void *dst, const void __user *src, unsigned long size)
+ {
+ 	might_fault();
++
++	if (size > INT_MAX)
++		return size;
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (!access_ok_noprefault(VERIFY_READ, src, size))
++		return size;
++#endif
++
+ 	return __copy_user_nocache(dst, src, size, 1);
+ }
+ 
+-static inline int
++static inline unsigned long
+ __copy_from_user_inatomic_nocache(void *dst, const void __user *src,
+-				  unsigned size)
++				  unsigned long size)
+ {
++	if (size > INT_MAX)
++		return size;
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (!access_ok_noprefault(VERIFY_READ, src, size))
++		return size;
++#endif
++
+ 	return __copy_user_nocache(dst, src, size, 0);
+ }
+ 
+ unsigned long
+-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
++copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest) __size_overflow(3);
+ 
+ #endif /* _ASM_X86_UACCESS_64_H */
+diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
+index 5b238981..77fdd78 100644
+--- a/arch/x86/include/asm/word-at-a-time.h
++++ b/arch/x86/include/asm/word-at-a-time.h
+@@ -11,7 +11,7 @@
+  * and shift, for example.
+  */
+ struct word_at_a_time {
+-	const unsigned long one_bits, high_bits;
++	unsigned long one_bits, high_bits;
+ };
+ 
+ #define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
+diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
+index e45e4da..44e8572 100644
+--- a/arch/x86/include/asm/x86_init.h
++++ b/arch/x86/include/asm/x86_init.h
+@@ -129,7 +129,7 @@ struct x86_init_ops {
+ 	struct x86_init_timers		timers;
+ 	struct x86_init_iommu		iommu;
+ 	struct x86_init_pci		pci;
+-};
++} __no_const;
+ 
+ /**
+  * struct x86_cpuinit_ops - platform specific cpu hotplug setups
+@@ -140,7 +140,7 @@ struct x86_cpuinit_ops {
+ 	void (*setup_percpu_clockev)(void);
+ 	void (*early_percpu_clock_init)(void);
+ 	void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
+-};
++} __no_const;
+ 
+ struct timespec;
+ 
+@@ -168,7 +168,7 @@ struct x86_platform_ops {
+ 	void (*save_sched_clock_state)(void);
+ 	void (*restore_sched_clock_state)(void);
+ 	void (*apic_post_init)(void);
+-};
++} __no_const;
+ 
+ struct pci_dev;
+ struct msi_msg;
+@@ -185,7 +185,7 @@ struct x86_msi_ops {
+ 	int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
+ 	u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
+ 	u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
+-};
++} __no_const;
+ 
+ struct IO_APIC_route_entry;
+ struct io_apic_irq_attr;
+@@ -206,7 +206,7 @@ struct x86_io_apic_ops {
+ 				       unsigned int destination, int vector,
+ 				       struct io_apic_irq_attr *attr);
+ 	void		(*eoi_ioapic_pin)(int apic, int pin, int vector);
+-};
++} __no_const;
+ 
+ extern struct x86_init_ops x86_init;
+ extern struct x86_cpuinit_ops x86_cpuinit;
+diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
+index 3e276eb..2eb3c30 100644
+--- a/arch/x86/include/asm/xen/page.h
++++ b/arch/x86/include/asm/xen/page.h
+@@ -56,7 +56,7 @@ extern int m2p_remove_override(struct page *page,
+ extern struct page *m2p_find_override(unsigned long mfn);
+ extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);
+ 
+-static inline unsigned long pfn_to_mfn(unsigned long pfn)
++static inline unsigned long __intentional_overflow(-1) pfn_to_mfn(unsigned long pfn)
+ {
+ 	unsigned long mfn;
+ 
+diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
+index 6c1d741..39e6ecf 100644
+--- a/arch/x86/include/asm/xsave.h
++++ b/arch/x86/include/asm/xsave.h
+@@ -80,8 +80,11 @@ static inline int xsave_user(struct xsave_struct __user *buf)
+ 	if (unlikely(err))
+ 		return -EFAULT;
+ 
++	pax_open_userland();
+ 	__asm__ __volatile__(ASM_STAC "\n"
+-			     "1: .byte " REX_PREFIX "0x0f,0xae,0x27\n"
++			     "1:"
++			     __copyuser_seg
++			     ".byte " REX_PREFIX "0x0f,0xae,0x27\n"
+ 			     "2: " ASM_CLAC "\n"
+ 			     ".section .fixup,\"ax\"\n"
+ 			     "3:  movl $-1,%[err]\n"
+@@ -91,18 +94,22 @@ static inline int xsave_user(struct xsave_struct __user *buf)
+ 			     : [err] "=r" (err)
+ 			     : "D" (buf), "a" (-1), "d" (-1), "0" (0)
+ 			     : "memory");
++	pax_close_userland();
+ 	return err;
+ }
+ 
+ static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
+ {
+ 	int err;
+-	struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
++	struct xsave_struct *xstate = ((__force_kernel struct xsave_struct *)buf);
+ 	u32 lmask = mask;
+ 	u32 hmask = mask >> 32;
+ 
++	pax_open_userland();
+ 	__asm__ __volatile__(ASM_STAC "\n"
+-			     "1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n"
++			     "1:"
++			     __copyuser_seg
++			     ".byte " REX_PREFIX "0x0f,0xae,0x2f\n"
+ 			     "2: " ASM_CLAC "\n"
+ 			     ".section .fixup,\"ax\"\n"
+ 			     "3:  movl $-1,%[err]\n"
+@@ -112,6 +119,7 @@ static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
+ 			     : [err] "=r" (err)
+ 			     : "D" (xstate), "a" (lmask), "d" (hmask), "0" (0)
+ 			     : "memory");	/* memory required? */
++	pax_close_userland();
+ 	return err;
+ }
+ 
+diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
+index bbae024..e1528f9 100644
+--- a/arch/x86/include/uapi/asm/e820.h
++++ b/arch/x86/include/uapi/asm/e820.h
+@@ -63,7 +63,7 @@ struct e820map {
+ #define ISA_START_ADDRESS	0xa0000
+ #define ISA_END_ADDRESS		0x100000
+ 
+-#define BIOS_BEGIN		0x000a0000
++#define BIOS_BEGIN		0x000c0000
+ #define BIOS_END		0x00100000
+ 
+ #define BIOS_ROM_BASE		0xffe00000
+diff --git a/arch/x86/include/uapi/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
+index 7b0a55a..ad115bf 100644
+--- a/arch/x86/include/uapi/asm/ptrace-abi.h
++++ b/arch/x86/include/uapi/asm/ptrace-abi.h
+@@ -49,7 +49,6 @@
+ #define EFLAGS 144
+ #define RSP 152
+ #define SS 160
+-#define ARGOFFSET R11
+ #endif /* __ASSEMBLY__ */
+ 
+ /* top of stack page */
+diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
+index 56bac86..9d8df82 100644
+--- a/arch/x86/kernel/Makefile
++++ b/arch/x86/kernel/Makefile
+@@ -24,7 +24,7 @@ obj-y			+= time.o ioport.o ldt.o dumpstack.o nmi.o
+ obj-y			+= setup.o x86_init.o i8259.o irqinit.o jump_label.o
+ obj-$(CONFIG_IRQ_WORK)  += irq_work.o
+ obj-y			+= probe_roms.o
+-obj-$(CONFIG_X86_32)	+= i386_ksyms_32.o
++obj-$(CONFIG_X86_32)	+= sys_i386_32.o i386_ksyms_32.o
+ obj-$(CONFIG_X86_64)	+= sys_x86_64.o x8664_ksyms_64.o
+ obj-y			+= syscall_$(BITS).o
+ obj-$(CONFIG_X86_64)	+= vsyscall_64.o
+diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
+index 1dac942..19c8b0c 100644
+--- a/arch/x86/kernel/acpi/boot.c
++++ b/arch/x86/kernel/acpi/boot.c
+@@ -1312,7 +1312,7 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
+  * If your system is blacklisted here, but you find that acpi=force
+  * works for you, please contact linux-acpi@vger.kernel.org
+  */
+-static struct dmi_system_id __initdata acpi_dmi_table[] = {
++static const struct dmi_system_id __initconst acpi_dmi_table[] = {
+ 	/*
+ 	 * Boxes that need ACPI disabled
+ 	 */
+@@ -1387,7 +1387,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
+ };
+ 
+ /* second table for DMI checks that should run after early-quirks */
+-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
++static const struct dmi_system_id __initconst acpi_dmi_table_late[] = {
+ 	/*
+ 	 * HP laptops which use a DSDT reporting as HP/SB400/10000,
+ 	 * which includes some code which overrides all temperature
+diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
+index 3a2ae4c..9db31d6 100644
+--- a/arch/x86/kernel/acpi/sleep.c
++++ b/arch/x86/kernel/acpi/sleep.c
+@@ -99,8 +99,12 @@ int x86_acpi_suspend_lowlevel(void)
+ #else /* CONFIG_64BIT */
+ #ifdef CONFIG_SMP
+ 	stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
++
++	pax_open_kernel();
+ 	early_gdt_descr.address =
+ 			(unsigned long)get_cpu_gdt_table(smp_processor_id());
++	pax_close_kernel();
++
+ 	initial_gs = per_cpu_offset(smp_processor_id());
+ #endif
+ 	initial_code = (unsigned long)wakeup_long64;
+diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
+index 665c6b7..eae4d56 100644
+--- a/arch/x86/kernel/acpi/wakeup_32.S
++++ b/arch/x86/kernel/acpi/wakeup_32.S
+@@ -29,13 +29,11 @@ wakeup_pmode_return:
+ 	# and restore the stack ... but you need gdt for this to work
+ 	movl	saved_context_esp, %esp
+ 
+-	movl	%cs:saved_magic, %eax
+-	cmpl	$0x12345678, %eax
++	cmpl	$0x12345678, saved_magic
+ 	jne	bogus_magic
+ 
+ 	# jump to place where we left off
+-	movl	saved_eip, %eax
+-	jmp	*%eax
++	jmp	*(saved_eip)
+ 
+ bogus_magic:
+ 	jmp	bogus_magic
+diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
+index df94598..f3b29bf 100644
+--- a/arch/x86/kernel/alternative.c
++++ b/arch/x86/kernel/alternative.c
+@@ -269,6 +269,13 @@ void __init_or_module apply_alternatives(struct alt_instr *start,
+ 	 */
+ 	for (a = start; a < end; a++) {
+ 		instr = (u8 *)&a->instr_offset + a->instr_offset;
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		instr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++		if (instr < (u8 *)_text || (u8 *)_einittext <= instr)
++			instr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++#endif
++
+ 		replacement = (u8 *)&a->repl_offset + a->repl_offset;
+ 		BUG_ON(a->replacementlen > a->instrlen);
+ 		BUG_ON(a->instrlen > sizeof(insnbuf));
+@@ -300,10 +307,16 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
+ 	for (poff = start; poff < end; poff++) {
+ 		u8 *ptr = (u8 *)poff + *poff;
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++		if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
++			ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++#endif
++
+ 		if (!*poff || ptr < text || ptr >= text_end)
+ 			continue;
+ 		/* turn DS segment override prefix into lock prefix */
+-		if (*ptr == 0x3e)
++		if (*ktla_ktva(ptr) == 0x3e)
+ 			text_poke(ptr, ((unsigned char []){0xf0}), 1);
+ 	}
+ 	mutex_unlock(&text_mutex);
+@@ -318,10 +331,16 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
+ 	for (poff = start; poff < end; poff++) {
+ 		u8 *ptr = (u8 *)poff + *poff;
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		ptr += ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++		if (ptr < (u8 *)_text || (u8 *)_einittext <= ptr)
++			ptr -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++#endif
++
+ 		if (!*poff || ptr < text || ptr >= text_end)
+ 			continue;
+ 		/* turn lock prefix into DS segment override prefix */
+-		if (*ptr == 0xf0)
++		if (*ktla_ktva(ptr) == 0xf0)
+ 			text_poke(ptr, ((unsigned char []){0x3E}), 1);
+ 	}
+ 	mutex_unlock(&text_mutex);
+@@ -458,7 +477,7 @@ void __init_or_module apply_paravirt(struct paravirt_patch_site *start,
+ 
+ 		BUG_ON(p->len > MAX_PATCH_LEN);
+ 		/* prep the buffer with the original instructions */
+-		memcpy(insnbuf, p->instr, p->len);
++		memcpy(insnbuf, ktla_ktva(p->instr), p->len);
+ 		used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf,
+ 					 (unsigned long)p->instr, p->len);
+ 
+@@ -505,7 +524,7 @@ void __init alternative_instructions(void)
+ 	if (!uniproc_patched || num_possible_cpus() == 1)
+ 		free_init_pages("SMP alternatives",
+ 				(unsigned long)__smp_locks,
+-				(unsigned long)__smp_locks_end);
++				PAGE_ALIGN((unsigned long)__smp_locks_end));
+ #endif
+ 
+ 	apply_paravirt(__parainstructions, __parainstructions_end);
+@@ -525,13 +544,17 @@ void __init alternative_instructions(void)
+  * instructions. And on the local CPU you need to be protected again NMI or MCE
+  * handlers seeing an inconsistent instruction while you patch.
+  */
+-void *__init_or_module text_poke_early(void *addr, const void *opcode,
++void *__kprobes text_poke_early(void *addr, const void *opcode,
+ 					      size_t len)
+ {
+ 	unsigned long flags;
+ 	local_irq_save(flags);
+-	memcpy(addr, opcode, len);
++
++	pax_open_kernel();
++	memcpy(ktla_ktva(addr), opcode, len);
+ 	sync_core();
++	pax_close_kernel();
++
+ 	local_irq_restore(flags);
+ 	/* Could also do a CLFLUSH here to speed up CPU recovery; but
+ 	   that causes hangs on some VIA CPUs. */
+@@ -553,36 +576,22 @@ void *__init_or_module text_poke_early(void *addr, const void *opcode,
+  */
+ void *__kprobes text_poke(void *addr, const void *opcode, size_t len)
+ {
+-	unsigned long flags;
+-	char *vaddr;
++	unsigned char *vaddr = ktla_ktva(addr);
+ 	struct page *pages[2];
+-	int i;
++	size_t i;
+ 
+ 	if (!core_kernel_text((unsigned long)addr)) {
+-		pages[0] = vmalloc_to_page(addr);
+-		pages[1] = vmalloc_to_page(addr + PAGE_SIZE);
++		pages[0] = vmalloc_to_page(vaddr);
++		pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE);
+ 	} else {
+-		pages[0] = virt_to_page(addr);
++		pages[0] = virt_to_page(vaddr);
+ 		WARN_ON(!PageReserved(pages[0]));
+-		pages[1] = virt_to_page(addr + PAGE_SIZE);
++		pages[1] = virt_to_page(vaddr + PAGE_SIZE);
+ 	}
+ 	BUG_ON(!pages[0]);
+-	local_irq_save(flags);
+-	set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0]));
+-	if (pages[1])
+-		set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1]));
+-	vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0);
+-	memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len);
+-	clear_fixmap(FIX_TEXT_POKE0);
+-	if (pages[1])
+-		clear_fixmap(FIX_TEXT_POKE1);
+-	local_flush_tlb();
+-	sync_core();
+-	/* Could also do a CLFLUSH here to speed up CPU recovery; but
+-	   that causes hangs on some VIA CPUs. */
++	text_poke_early(addr, opcode, len);
+ 	for (i = 0; i < len; i++)
+-		BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]);
+-	local_irq_restore(flags);
++		BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]);
+ 	return addr;
+ }
+ 
+@@ -602,7 +611,7 @@ int poke_int3_handler(struct pt_regs *regs)
+ 	if (likely(!bp_patching_in_progress))
+ 		return 0;
+ 
+-	if (user_mode_vm(regs) || regs->ip != (unsigned long)bp_int3_addr)
++	if (user_mode(regs) || regs->ip != (unsigned long)bp_int3_addr)
+ 		return 0;
+ 
+ 	/* set up the specified breakpoint handler */
+@@ -636,7 +645,7 @@ int poke_int3_handler(struct pt_regs *regs)
+  */
+ void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler)
+ {
+-	unsigned char int3 = 0xcc;
++	const unsigned char int3 = 0xcc;
+ 
+ 	bp_int3_handler = handler;
+ 	bp_int3_addr = (u8 *)addr + sizeof(int3);
+diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
+index 523f147..7b996e0 100644
+--- a/arch/x86/kernel/apic/apic.c
++++ b/arch/x86/kernel/apic/apic.c
+@@ -198,7 +198,7 @@ int first_system_vector = 0xfe;
+ /*
+  * Debug level, exported for io_apic.c
+  */
+-unsigned int apic_verbosity;
++int apic_verbosity;
+ 
+ int pic_mode;
+ 
+@@ -1992,7 +1992,7 @@ static inline void __smp_error_interrupt(struct pt_regs *regs)
+ 	apic_write(APIC_ESR, 0);
+ 	v = apic_read(APIC_ESR);
+ 	ack_APIC_irq();
+-	atomic_inc(&irq_err_count);
++	atomic_inc_unchecked(&irq_err_count);
+ 
+ 	apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x",
+ 		    smp_processor_id(), v);
+diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
+index 2c621a6..fa2b1ae 100644
+--- a/arch/x86/kernel/apic/apic_flat_64.c
++++ b/arch/x86/kernel/apic/apic_flat_64.c
+@@ -154,7 +154,7 @@ static int flat_probe(void)
+ 	return 1;
+ }
+ 
+-static struct apic apic_flat =  {
++static struct apic apic_flat __read_only =  {
+ 	.name				= "flat",
+ 	.probe				= flat_probe,
+ 	.acpi_madt_oem_check		= flat_acpi_madt_oem_check,
+@@ -268,7 +268,7 @@ static int physflat_probe(void)
+ 	return 0;
+ }
+ 
+-static struct apic apic_physflat =  {
++static struct apic apic_physflat __read_only =  {
+ 
+ 	.name				= "physical flat",
+ 	.probe				= physflat_probe,
+diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
+index 191ce75..2db6d63 100644
+--- a/arch/x86/kernel/apic/apic_noop.c
++++ b/arch/x86/kernel/apic/apic_noop.c
+@@ -118,7 +118,7 @@ static void noop_apic_write(u32 reg, u32 v)
+ 	WARN_ON_ONCE(cpu_has_apic && !disable_apic);
+ }
+ 
+-struct apic apic_noop = {
++struct apic apic_noop __read_only = {
+ 	.name				= "noop",
+ 	.probe				= noop_probe,
+ 	.acpi_madt_oem_check		= NULL,
+diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
+index d50e364..543bee3 100644
+--- a/arch/x86/kernel/apic/bigsmp_32.c
++++ b/arch/x86/kernel/apic/bigsmp_32.c
+@@ -152,7 +152,7 @@ static int probe_bigsmp(void)
+ 	return dmi_bigsmp;
+ }
+ 
+-static struct apic apic_bigsmp = {
++static struct apic apic_bigsmp __read_only = {
+ 
+ 	.name				= "bigsmp",
+ 	.probe				= probe_bigsmp,
+diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
+index c552247..587a316 100644
+--- a/arch/x86/kernel/apic/es7000_32.c
++++ b/arch/x86/kernel/apic/es7000_32.c
+@@ -608,8 +608,7 @@ static int es7000_mps_oem_check_cluster(struct mpc_table *mpc, char *oem,
+ 	return ret && es7000_apic_is_cluster();
+ }
+ 
+-/* We've been warned by a false positive warning.Use __refdata to keep calm. */
+-static struct apic __refdata apic_es7000_cluster = {
++static struct apic apic_es7000_cluster __read_only = {
+ 
+ 	.name				= "es7000",
+ 	.probe				= probe_es7000,
+@@ -675,7 +674,7 @@ static struct apic __refdata apic_es7000_cluster = {
+ 	.x86_32_early_logical_apicid	= es7000_early_logical_apicid,
+ };
+ 
+-static struct apic __refdata apic_es7000 = {
++static struct apic apic_es7000 __read_only = {
+ 
+ 	.name				= "es7000",
+ 	.probe				= probe_es7000,
+diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
+index 6ad4658..5450d96 100644
+--- a/arch/x86/kernel/apic/io_apic.c
++++ b/arch/x86/kernel/apic/io_apic.c
+@@ -1057,7 +1057,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin,
+ }
+ EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
+ 
+-void lock_vector_lock(void)
++void lock_vector_lock(void) __acquires(vector_lock)
+ {
+ 	/* Used to the online set of cpus does not change
+ 	 * during assign_irq_vector.
+@@ -1065,7 +1065,7 @@ void lock_vector_lock(void)
+ 	raw_spin_lock(&vector_lock);
+ }
+ 
+-void unlock_vector_lock(void)
++void unlock_vector_lock(void) __releases(vector_lock)
+ {
+ 	raw_spin_unlock(&vector_lock);
+ }
+@@ -2364,7 +2364,7 @@ static void ack_apic_edge(struct irq_data *data)
+ 	ack_APIC_irq();
+ }
+ 
+-atomic_t irq_mis_count;
++atomic_unchecked_t irq_mis_count;
+ 
+ #ifdef CONFIG_GENERIC_PENDING_IRQ
+ static bool io_apic_level_ack_pending(struct irq_cfg *cfg)
+@@ -2505,7 +2505,7 @@ static void ack_apic_level(struct irq_data *data)
+ 	 * at the cpu.
+ 	 */
+ 	if (!(v & (1 << (i & 0x1f)))) {
+-		atomic_inc(&irq_mis_count);
++		atomic_inc_unchecked(&irq_mis_count);
+ 
+ 		eoi_ioapic_irq(irq, cfg);
+ 	}
+@@ -2513,7 +2513,7 @@ static void ack_apic_level(struct irq_data *data)
+ 	ioapic_irqd_unmask(data, cfg, masked);
+ }
+ 
+-static struct irq_chip ioapic_chip __read_mostly = {
++static struct irq_chip ioapic_chip = {
+ 	.name			= "IO-APIC",
+ 	.irq_startup		= startup_ioapic_irq,
+ 	.irq_mask		= mask_ioapic_irq,
+@@ -2582,7 +2582,7 @@ static void ack_lapic_irq(struct irq_data *data)
+ 	ack_APIC_irq();
+ }
+ 
+-static struct irq_chip lapic_chip __read_mostly = {
++static struct irq_chip lapic_chip = {
+ 	.name		= "local-APIC",
+ 	.irq_mask	= mask_lapic_irq,
+ 	.irq_unmask	= unmask_lapic_irq,
+diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
+index 1e42e8f..daacf44 100644
+--- a/arch/x86/kernel/apic/numaq_32.c
++++ b/arch/x86/kernel/apic/numaq_32.c
+@@ -455,8 +455,7 @@ static void numaq_setup_portio_remap(void)
+ 		(u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
+ }
+ 
+-/* Use __refdata to keep false positive warning calm.  */
+-static struct apic __refdata apic_numaq = {
++static struct apic apic_numaq __read_only = {
+ 
+ 	.name				= "NUMAQ",
+ 	.probe				= probe_numaq,
+diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
+index eb35ef9..f184a21 100644
+--- a/arch/x86/kernel/apic/probe_32.c
++++ b/arch/x86/kernel/apic/probe_32.c
+@@ -72,7 +72,7 @@ static int probe_default(void)
+ 	return 1;
+ }
+ 
+-static struct apic apic_default = {
++static struct apic apic_default __read_only = {
+ 
+ 	.name				= "default",
+ 	.probe				= probe_default,
+diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
+index 00146f9..5e299b8 100644
+--- a/arch/x86/kernel/apic/summit_32.c
++++ b/arch/x86/kernel/apic/summit_32.c
+@@ -485,7 +485,7 @@ void setup_summit(void)
+ }
+ #endif
+ 
+-static struct apic apic_summit = {
++static struct apic apic_summit __read_only = {
+ 
+ 	.name				= "summit",
+ 	.probe				= probe_summit,
+diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
+index cac85ee..01fa741 100644
+--- a/arch/x86/kernel/apic/x2apic_cluster.c
++++ b/arch/x86/kernel/apic/x2apic_cluster.c
+@@ -182,7 +182,7 @@ update_clusterinfo(struct notifier_block *nfb, unsigned long action, void *hcpu)
+ 	return notifier_from_errno(err);
+ }
+ 
+-static struct notifier_block __refdata x2apic_cpu_notifier = {
++static struct notifier_block x2apic_cpu_notifier = {
+ 	.notifier_call = update_clusterinfo,
+ };
+ 
+@@ -234,7 +234,7 @@ static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
+ 		cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
+ }
+ 
+-static struct apic apic_x2apic_cluster = {
++static struct apic apic_x2apic_cluster __read_only = {
+ 
+ 	.name				= "cluster x2apic",
+ 	.probe				= x2apic_cluster_probe,
+diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
+index de231e3..1d1b2ee 100644
+--- a/arch/x86/kernel/apic/x2apic_phys.c
++++ b/arch/x86/kernel/apic/x2apic_phys.c
+@@ -88,7 +88,7 @@ static int x2apic_phys_probe(void)
+ 	return apic == &apic_x2apic_phys;
+ }
+ 
+-static struct apic apic_x2apic_phys = {
++static struct apic apic_x2apic_phys __read_only = {
+ 
+ 	.name				= "physical x2apic",
+ 	.probe				= x2apic_phys_probe,
+diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
+index d263b13..963258b 100644
+--- a/arch/x86/kernel/apic/x2apic_uv_x.c
++++ b/arch/x86/kernel/apic/x2apic_uv_x.c
+@@ -350,7 +350,7 @@ static int uv_probe(void)
+ 	return apic == &apic_x2apic_uv_x;
+ }
+ 
+-static struct apic __refdata apic_x2apic_uv_x = {
++static struct apic apic_x2apic_uv_x __read_only = {
+ 
+ 	.name				= "UV large system",
+ 	.probe				= uv_probe,
+diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
+index 3ab0343..26bdc88 100644
+--- a/arch/x86/kernel/apm_32.c
++++ b/arch/x86/kernel/apm_32.c
+@@ -433,7 +433,7 @@ static DEFINE_MUTEX(apm_mutex);
+  * This is for buggy BIOS's that refer to (real mode) segment 0x40
+  * even though they are called in protected mode.
+  */
+-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
++static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
+ 			(unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
+ 
+ static const char driver_version[] = "1.16ac";	/* no spaces */
+@@ -611,7 +611,10 @@ static long __apm_bios_call(void *_call)
+ 	BUG_ON(cpu != 0);
+ 	gdt = get_cpu_gdt_table(cpu);
+ 	save_desc_40 = gdt[0x40 / 8];
++
++	pax_open_kernel();
+ 	gdt[0x40 / 8] = bad_bios_desc;
++	pax_close_kernel();
+ 
+ 	apm_irq_save(flags);
+ 	APM_DO_SAVE_SEGS;
+@@ -620,7 +623,11 @@ static long __apm_bios_call(void *_call)
+ 			  &call->esi);
+ 	APM_DO_RESTORE_SEGS;
+ 	apm_irq_restore(flags);
++
++	pax_open_kernel();
+ 	gdt[0x40 / 8] = save_desc_40;
++	pax_close_kernel();
++
+ 	put_cpu();
+ 
+ 	return call->eax & 0xff;
+@@ -687,7 +694,10 @@ static long __apm_bios_call_simple(void *_call)
+ 	BUG_ON(cpu != 0);
+ 	gdt = get_cpu_gdt_table(cpu);
+ 	save_desc_40 = gdt[0x40 / 8];
++
++	pax_open_kernel();
+ 	gdt[0x40 / 8] = bad_bios_desc;
++	pax_close_kernel();
+ 
+ 	apm_irq_save(flags);
+ 	APM_DO_SAVE_SEGS;
+@@ -695,7 +705,11 @@ static long __apm_bios_call_simple(void *_call)
+ 					 &call->eax);
+ 	APM_DO_RESTORE_SEGS;
+ 	apm_irq_restore(flags);
++
++	pax_open_kernel();
+ 	gdt[0x40 / 8] = save_desc_40;
++	pax_close_kernel();
++
+ 	put_cpu();
+ 	return error;
+ }
+@@ -2052,7 +2066,7 @@ static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id __initdata apm_dmi_table[] = {
++static const struct dmi_system_id __initconst apm_dmi_table[] = {
+ 	{
+ 		print_if_true,
+ 		KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
+@@ -2362,12 +2376,15 @@ static int __init apm_init(void)
+ 	 * code to that CPU.
+ 	 */
+ 	gdt = get_cpu_gdt_table(0);
++
++	pax_open_kernel();
+ 	set_desc_base(&gdt[APM_CS >> 3],
+ 		 (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4));
+ 	set_desc_base(&gdt[APM_CS_16 >> 3],
+ 		 (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4));
+ 	set_desc_base(&gdt[APM_DS >> 3],
+ 		 (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4));
++	pax_close_kernel();
+ 
+ 	proc_create("apm", 0, NULL, &apm_file_ops);
+ 
+diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
+index 9f6b934..cf5ffb3 100644
+--- a/arch/x86/kernel/asm-offsets.c
++++ b/arch/x86/kernel/asm-offsets.c
+@@ -32,6 +32,8 @@ void common(void) {
+ 	OFFSET(TI_flags, thread_info, flags);
+ 	OFFSET(TI_status, thread_info, status);
+ 	OFFSET(TI_addr_limit, thread_info, addr_limit);
++	OFFSET(TI_lowest_stack, thread_info, lowest_stack);
++	DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo));
+ 
+ 	BLANK();
+ 	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
+@@ -52,8 +54,26 @@ void common(void) {
+ 	OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit);
+ 	OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0);
+ 	OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2);
++
++#ifdef CONFIG_PAX_KERNEXEC
++	OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0);
+ #endif
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3);
++	OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3);
++#ifdef CONFIG_X86_64
++	OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched);
++#endif
++#endif
++
++#endif
++
++	BLANK();
++	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
++	DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT);
++	DEFINE(THREAD_SIZE_asm, THREAD_SIZE);
++
+ #ifdef CONFIG_XEN
+ 	BLANK();
+ 	OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask);
+diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
+index e7c798b..2b2019b 100644
+--- a/arch/x86/kernel/asm-offsets_64.c
++++ b/arch/x86/kernel/asm-offsets_64.c
+@@ -77,6 +77,7 @@ int main(void)
+ 	BLANK();
+ #undef ENTRY
+ 
++	DEFINE(TSS_size, sizeof(struct tss_struct));
+ 	OFFSET(TSS_ist, tss_struct, x86_tss.ist);
+ 	BLANK();
+ 
+diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
+index 7fd54f0..0691410 100644
+--- a/arch/x86/kernel/cpu/Makefile
++++ b/arch/x86/kernel/cpu/Makefile
+@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg
+ CFLAGS_REMOVE_perf_event.o = -pg
+ endif
+ 
+-# Make sure load_percpu_segment has no stackprotector
+-nostackp := $(call cc-option, -fno-stack-protector)
+-CFLAGS_common.o		:= $(nostackp)
+-
+ obj-y			:= intel_cacheinfo.o scattered.o topology.o
+ obj-y			+= proc.o capflags.o powerflags.o common.o
+ obj-y			+= rdrand.o
+diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
+index c005fdd..e33da29 100644
+--- a/arch/x86/kernel/cpu/amd.c
++++ b/arch/x86/kernel/cpu/amd.c
+@@ -759,7 +759,7 @@ static void init_amd(struct cpuinfo_x86 *c)
+ static unsigned int amd_size_cache(struct cpuinfo_x86 *c, unsigned int size)
+ {
+ 	/* AMD errata T13 (order #21922) */
+-	if ((c->x86 == 6)) {
++	if (c->x86 == 6) {
+ 		/* Duron Rev A0 */
+ 		if (c->x86_model == 3 && c->x86_mask == 0)
+ 			size = 64;
+diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
+index e6bddd5..5b0c55c 100644
+--- a/arch/x86/kernel/cpu/common.c
++++ b/arch/x86/kernel/cpu/common.c
+@@ -88,60 +88,6 @@ static const struct cpu_dev default_cpu = {
+ 
+ static const struct cpu_dev *this_cpu = &default_cpu;
+ 
+-DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = {
+-#ifdef CONFIG_X86_64
+-	/*
+-	 * We need valid kernel segments for data and code in long mode too
+-	 * IRET will check the segment types  kkeil 2000/10/28
+-	 * Also sysret mandates a special GDT layout
+-	 *
+-	 * TLS descriptors are currently at a different place compared to i386.
+-	 * Hopefully nobody expects them at a fixed place (Wine?)
+-	 */
+-	[GDT_ENTRY_KERNEL32_CS]		= GDT_ENTRY_INIT(0xc09b, 0, 0xfffff),
+-	[GDT_ENTRY_KERNEL_CS]		= GDT_ENTRY_INIT(0xa09b, 0, 0xfffff),
+-	[GDT_ENTRY_KERNEL_DS]		= GDT_ENTRY_INIT(0xc093, 0, 0xfffff),
+-	[GDT_ENTRY_DEFAULT_USER32_CS]	= GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff),
+-	[GDT_ENTRY_DEFAULT_USER_DS]	= GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff),
+-	[GDT_ENTRY_DEFAULT_USER_CS]	= GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff),
+-#else
+-	[GDT_ENTRY_KERNEL_CS]		= GDT_ENTRY_INIT(0xc09a, 0, 0xfffff),
+-	[GDT_ENTRY_KERNEL_DS]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
+-	[GDT_ENTRY_DEFAULT_USER_CS]	= GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff),
+-	[GDT_ENTRY_DEFAULT_USER_DS]	= GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff),
+-	/*
+-	 * Segments used for calling PnP BIOS have byte granularity.
+-	 * They code segments and data segments have fixed 64k limits,
+-	 * the transfer segment sizes are set at run time.
+-	 */
+-	/* 32-bit code */
+-	[GDT_ENTRY_PNPBIOS_CS32]	= GDT_ENTRY_INIT(0x409a, 0, 0xffff),
+-	/* 16-bit code */
+-	[GDT_ENTRY_PNPBIOS_CS16]	= GDT_ENTRY_INIT(0x009a, 0, 0xffff),
+-	/* 16-bit data */
+-	[GDT_ENTRY_PNPBIOS_DS]		= GDT_ENTRY_INIT(0x0092, 0, 0xffff),
+-	/* 16-bit data */
+-	[GDT_ENTRY_PNPBIOS_TS1]		= GDT_ENTRY_INIT(0x0092, 0, 0),
+-	/* 16-bit data */
+-	[GDT_ENTRY_PNPBIOS_TS2]		= GDT_ENTRY_INIT(0x0092, 0, 0),
+-	/*
+-	 * The APM segments have byte granularity and their bases
+-	 * are set at run time.  All have 64k limits.
+-	 */
+-	/* 32-bit code */
+-	[GDT_ENTRY_APMBIOS_BASE]	= GDT_ENTRY_INIT(0x409a, 0, 0xffff),
+-	/* 16-bit code */
+-	[GDT_ENTRY_APMBIOS_BASE+1]	= GDT_ENTRY_INIT(0x009a, 0, 0xffff),
+-	/* data */
+-	[GDT_ENTRY_APMBIOS_BASE+2]	= GDT_ENTRY_INIT(0x4092, 0, 0xffff),
+-
+-	[GDT_ENTRY_ESPFIX_SS]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
+-	[GDT_ENTRY_PERCPU]		= GDT_ENTRY_INIT(0xc092, 0, 0xfffff),
+-	GDT_STACK_CANARY_INIT
+-#endif
+-} };
+-EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
+-
+ static int __init x86_xsave_setup(char *s)
+ {
+ 	if (strlen(s))
+@@ -295,6 +241,59 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
+ 	}
+ }
+ 
++#ifdef CONFIG_X86_64
++static __init int setup_disable_pcid(char *arg)
++{
++	setup_clear_cpu_cap(X86_FEATURE_PCID);
++	setup_clear_cpu_cap(X86_FEATURE_INVPCID);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	if (clone_pgd_mask != ~(pgdval_t)0UL)
++		pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
++#endif
++
++	return 1;
++}
++__setup("nopcid", setup_disable_pcid);
++
++static void setup_pcid(struct cpuinfo_x86 *c)
++{
++	if (!cpu_has(c, X86_FEATURE_PCID)) {
++		clear_cpu_cap(c, X86_FEATURE_INVPCID);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++		if (clone_pgd_mask != ~(pgdval_t)0UL) {
++			pax_open_kernel();
++			pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
++			pax_close_kernel();
++			printk("PAX: slow and weak UDEREF enabled\n");
++		} else
++			printk("PAX: UDEREF disabled\n");
++#endif
++
++		return;
++	}
++
++	printk("PAX: PCID detected\n");
++	set_in_cr4(X86_CR4_PCIDE);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pax_open_kernel();
++	clone_pgd_mask = ~(pgdval_t)0UL;
++	pax_close_kernel();
++	if (pax_user_shadow_base)
++		printk("PAX: weak UDEREF enabled\n");
++	else {
++		set_cpu_cap(c, X86_FEATURE_STRONGUDEREF);
++		printk("PAX: strong UDEREF enabled\n");
++	}
++#endif
++
++	if (cpu_has(c, X86_FEATURE_INVPCID))
++		printk("PAX: INVPCID detected\n");
++}
++#endif
++
+ /*
+  * Some CPU features depend on higher CPUID levels, which may not always
+  * be available due to CPUID level capping or broken virtualization
+@@ -395,7 +394,7 @@ void switch_to_new_gdt(int cpu)
+ {
+ 	struct desc_ptr gdt_descr;
+ 
+-	gdt_descr.address = (long)get_cpu_gdt_table(cpu);
++	gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
+ 	gdt_descr.size = GDT_SIZE - 1;
+ 	load_gdt(&gdt_descr);
+ 	/* Reload the per-cpu base */
+@@ -885,6 +884,20 @@ static void identify_cpu(struct cpuinfo_x86 *c)
+ 	setup_smep(c);
+ 	setup_smap(c);
+ 
++#ifdef CONFIG_X86_32
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(__supported_pte_mask & _PAGE_NX))
++		clear_cpu_cap(c, X86_FEATURE_PSE);
++#endif
++#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	clear_cpu_cap(c, X86_FEATURE_SEP);
++#endif
++#endif
++
++#ifdef CONFIG_X86_64
++	setup_pcid(c);
++#endif
++
+ 	/*
+ 	 * The vendor-specific functions might have changed features.
+ 	 * Now we do "generic changes."
+@@ -1080,10 +1093,12 @@ static __init int setup_disablecpuid(char *arg)
+ }
+ __setup("clearcpuid=", setup_disablecpuid);
+ 
++DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo;
++EXPORT_PER_CPU_SYMBOL(current_tinfo);
++
+ #ifdef CONFIG_X86_64
+-struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
+-struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1,
+-				    (unsigned long) debug_idt_table };
++struct desc_ptr idt_descr __read_only = { NR_VECTORS * 16 - 1, (unsigned long) idt_table };
++const struct desc_ptr debug_idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) debug_idt_table };
+ 
+ DEFINE_PER_CPU_FIRST(union irq_stack_union,
+ 		     irq_stack_union) __aligned(PAGE_SIZE) __visible;
+@@ -1097,7 +1112,7 @@ DEFINE_PER_CPU(struct task_struct *, current_task) ____cacheline_aligned =
+ EXPORT_PER_CPU_SYMBOL(current_task);
+ 
+ DEFINE_PER_CPU(unsigned long, kernel_stack) =
+-	(unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE;
++	(unsigned long)&init_thread_union - 16 + THREAD_SIZE;
+ EXPORT_PER_CPU_SYMBOL(kernel_stack);
+ 
+ DEFINE_PER_CPU(char *, irq_stack_ptr) =
+@@ -1247,7 +1262,7 @@ void cpu_init(void)
+ 	load_ucode_ap();
+ 
+ 	cpu = stack_smp_processor_id();
+-	t = &per_cpu(init_tss, cpu);
++	t = init_tss + cpu;
+ 	oist = &per_cpu(orig_ist, cpu);
+ 
+ #ifdef CONFIG_NUMA
+@@ -1282,7 +1297,6 @@ void cpu_init(void)
+ 	wrmsrl(MSR_KERNEL_GS_BASE, 0);
+ 	barrier();
+ 
+-	x86_configure_nx();
+ 	enable_x2apic();
+ 
+ 	/*
+@@ -1334,7 +1348,7 @@ void cpu_init(void)
+ {
+ 	int cpu = smp_processor_id();
+ 	struct task_struct *curr = current;
+-	struct tss_struct *t = &per_cpu(init_tss, cpu);
++	struct tss_struct *t = init_tss + cpu;
+ 	struct thread_struct *thread = &curr->thread;
+ 
+ 	show_ucode_info_early();
+diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
+index 0641113..06f5ba4 100644
+--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
++++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
+@@ -1014,6 +1014,22 @@ static struct attribute *default_attrs[] = {
+ };
+ 
+ #ifdef CONFIG_AMD_NB
++static struct attribute *default_attrs_amd_nb[] = {
++	&type.attr,
++	&level.attr,
++	&coherency_line_size.attr,
++	&physical_line_partition.attr,
++	&ways_of_associativity.attr,
++	&number_of_sets.attr,
++	&size.attr,
++	&shared_cpu_map.attr,
++	&shared_cpu_list.attr,
++	NULL,
++	NULL,
++	NULL,
++	NULL
++};
++
+ static struct attribute **amd_l3_attrs(void)
+ {
+ 	static struct attribute **attrs;
+@@ -1024,18 +1040,7 @@ static struct attribute **amd_l3_attrs(void)
+ 
+ 	n = ARRAY_SIZE(default_attrs);
+ 
+-	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE))
+-		n += 2;
+-
+-	if (amd_nb_has_feature(AMD_NB_L3_PARTITIONING))
+-		n += 1;
+-
+-	attrs = kzalloc(n * sizeof (struct attribute *), GFP_KERNEL);
+-	if (attrs == NULL)
+-		return attrs = default_attrs;
+-
+-	for (n = 0; default_attrs[n]; n++)
+-		attrs[n] = default_attrs[n];
++	attrs = default_attrs_amd_nb;
+ 
+ 	if (amd_nb_has_feature(AMD_NB_L3_INDEX_DISABLE)) {
+ 		attrs[n++] = &cache_disable_0.attr;
+@@ -1086,6 +1091,13 @@ static struct kobj_type ktype_cache = {
+ 	.default_attrs	= default_attrs,
+ };
+ 
++#ifdef CONFIG_AMD_NB
++static struct kobj_type ktype_cache_amd_nb = {
++	.sysfs_ops	= &sysfs_ops,
++	.default_attrs	= default_attrs_amd_nb,
++};
++#endif
++
+ static struct kobj_type ktype_percpu_entry = {
+ 	.sysfs_ops	= &sysfs_ops,
+ };
+@@ -1151,20 +1163,26 @@ static int cache_add_dev(struct device *dev)
+ 		return retval;
+ 	}
+ 
++#ifdef CONFIG_AMD_NB
++	amd_l3_attrs();
++#endif
++
+ 	for (i = 0; i < num_cache_leaves; i++) {
++		struct kobj_type *ktype;
++
+ 		this_object = INDEX_KOBJECT_PTR(cpu, i);
+ 		this_object->cpu = cpu;
+ 		this_object->index = i;
+ 
+ 		this_leaf = CPUID4_INFO_IDX(cpu, i);
+ 
+-		ktype_cache.default_attrs = default_attrs;
++		ktype = &ktype_cache;
+ #ifdef CONFIG_AMD_NB
+ 		if (this_leaf->base.nb)
+-			ktype_cache.default_attrs = amd_l3_attrs();
++			ktype = &ktype_cache_amd_nb;
+ #endif
+ 		retval = kobject_init_and_add(&(this_object->kobj),
+-					      &ktype_cache,
++					      ktype,
+ 					      per_cpu(ici_cache_kobject, cpu),
+ 					      "index%1lu", i);
+ 		if (unlikely(retval)) {
+diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
+index 4d5419b..95f11bb 100644
+--- a/arch/x86/kernel/cpu/mcheck/mce.c
++++ b/arch/x86/kernel/cpu/mcheck/mce.c
+@@ -45,6 +45,7 @@
+ #include <asm/processor.h>
+ #include <asm/mce.h>
+ #include <asm/msr.h>
++#include <asm/local.h>
+ 
+ #include "mce-internal.h"
+ 
+@@ -258,7 +259,7 @@ static void print_mce(struct mce *m)
+ 			!(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "",
+ 				m->cs, m->ip);
+ 
+-		if (m->cs == __KERNEL_CS)
++		if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS)
+ 			print_symbol("{%s}", m->ip);
+ 		pr_cont("\n");
+ 	}
+@@ -291,10 +292,10 @@ static void print_mce(struct mce *m)
+ 
+ #define PANIC_TIMEOUT 5 /* 5 seconds */
+ 
+-static atomic_t mce_paniced;
++static atomic_unchecked_t mce_paniced;
+ 
+ static int fake_panic;
+-static atomic_t mce_fake_paniced;
++static atomic_unchecked_t mce_fake_paniced;
+ 
+ /* Panic in progress. Enable interrupts and wait for final IPI */
+ static void wait_for_panic(void)
+@@ -318,7 +319,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
+ 		/*
+ 		 * Make sure only one CPU runs in machine check panic
+ 		 */
+-		if (atomic_inc_return(&mce_paniced) > 1)
++		if (atomic_inc_return_unchecked(&mce_paniced) > 1)
+ 			wait_for_panic();
+ 		barrier();
+ 
+@@ -326,7 +327,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
+ 		console_verbose();
+ 	} else {
+ 		/* Don't log too much for fake panic */
+-		if (atomic_inc_return(&mce_fake_paniced) > 1)
++		if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1)
+ 			return;
+ 	}
+ 	/* First print corrected ones that are still unlogged */
+@@ -365,7 +366,7 @@ static void mce_panic(char *msg, struct mce *final, char *exp)
+ 	if (!fake_panic) {
+ 		if (panic_timeout == 0)
+ 			panic_timeout = mca_cfg.panic_timeout;
+-		panic(msg);
++		panic("%s", msg);
+ 	} else
+ 		pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
+ }
+@@ -695,7 +696,7 @@ static int mce_timed_out(u64 *t)
+ 	 * might have been modified by someone else.
+ 	 */
+ 	rmb();
+-	if (atomic_read(&mce_paniced))
++	if (atomic_read_unchecked(&mce_paniced))
+ 		wait_for_panic();
+ 	if (!mca_cfg.monarch_timeout)
+ 		goto out;
+@@ -1666,7 +1667,7 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code)
+ }
+ 
+ /* Call the installed machine check handler for this CPU setup. */
+-void (*machine_check_vector)(struct pt_regs *, long error_code) =
++void (*machine_check_vector)(struct pt_regs *, long error_code) __read_only =
+ 						unexpected_machine_check;
+ 
+ /*
+@@ -1689,7 +1690,9 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
+ 		return;
+ 	}
+ 
++	pax_open_kernel();
+ 	machine_check_vector = do_machine_check;
++	pax_close_kernel();
+ 
+ 	__mcheck_cpu_init_generic();
+ 	__mcheck_cpu_init_vendor(c);
+@@ -1703,7 +1706,7 @@ void mcheck_cpu_init(struct cpuinfo_x86 *c)
+  */
+ 
+ static DEFINE_SPINLOCK(mce_chrdev_state_lock);
+-static int mce_chrdev_open_count;	/* #times opened */
++static local_t mce_chrdev_open_count;	/* #times opened */
+ static int mce_chrdev_open_exclu;	/* already open exclusive? */
+ 
+ static int mce_chrdev_open(struct inode *inode, struct file *file)
+@@ -1711,7 +1714,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
+ 	spin_lock(&mce_chrdev_state_lock);
+ 
+ 	if (mce_chrdev_open_exclu ||
+-	    (mce_chrdev_open_count && (file->f_flags & O_EXCL))) {
++	    (local_read(&mce_chrdev_open_count) && (file->f_flags & O_EXCL))) {
+ 		spin_unlock(&mce_chrdev_state_lock);
+ 
+ 		return -EBUSY;
+@@ -1719,7 +1722,7 @@ static int mce_chrdev_open(struct inode *inode, struct file *file)
+ 
+ 	if (file->f_flags & O_EXCL)
+ 		mce_chrdev_open_exclu = 1;
+-	mce_chrdev_open_count++;
++	local_inc(&mce_chrdev_open_count);
+ 
+ 	spin_unlock(&mce_chrdev_state_lock);
+ 
+@@ -1730,7 +1733,7 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
+ {
+ 	spin_lock(&mce_chrdev_state_lock);
+ 
+-	mce_chrdev_open_count--;
++	local_dec(&mce_chrdev_open_count);
+ 	mce_chrdev_open_exclu = 0;
+ 
+ 	spin_unlock(&mce_chrdev_state_lock);
+@@ -2406,7 +2409,7 @@ static __init void mce_init_banks(void)
+ 
+ 	for (i = 0; i < mca_cfg.banks; i++) {
+ 		struct mce_bank *b = &mce_banks[i];
+-		struct device_attribute *a = &b->attr;
++		device_attribute_no_const *a = &b->attr;
+ 
+ 		sysfs_attr_init(&a->attr);
+ 		a->attr.name	= b->attrname;
+@@ -2474,7 +2477,7 @@ struct dentry *mce_get_debugfs_dir(void)
+ static void mce_reset(void)
+ {
+ 	cpu_missing = 0;
+-	atomic_set(&mce_fake_paniced, 0);
++	atomic_set_unchecked(&mce_fake_paniced, 0);
+ 	atomic_set(&mce_executing, 0);
+ 	atomic_set(&mce_callin, 0);
+ 	atomic_set(&global_nwo, 0);
+diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
+index a304298..49b6d06 100644
+--- a/arch/x86/kernel/cpu/mcheck/p5.c
++++ b/arch/x86/kernel/cpu/mcheck/p5.c
+@@ -10,6 +10,7 @@
+ #include <asm/processor.h>
+ #include <asm/mce.h>
+ #include <asm/msr.h>
++#include <asm/pgtable.h>
+ 
+ /* By default disabled */
+ int mce_p5_enabled __read_mostly;
+@@ -48,7 +49,9 @@ void intel_p5_mcheck_init(struct cpuinfo_x86 *c)
+ 	if (!cpu_has(c, X86_FEATURE_MCE))
+ 		return;
+ 
++	pax_open_kernel();
+ 	machine_check_vector = pentium_machine_check;
++	pax_close_kernel();
+ 	/* Make sure the vector pointer is visible before we enable MCEs: */
+ 	wmb();
+ 
+diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
+index 7dc5564..1273569 100644
+--- a/arch/x86/kernel/cpu/mcheck/winchip.c
++++ b/arch/x86/kernel/cpu/mcheck/winchip.c
+@@ -9,6 +9,7 @@
+ #include <asm/processor.h>
+ #include <asm/mce.h>
+ #include <asm/msr.h>
++#include <asm/pgtable.h>
+ 
+ /* Machine check handler for WinChip C6: */
+ static void winchip_machine_check(struct pt_regs *regs, long error_code)
+@@ -22,7 +23,9 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c)
+ {
+ 	u32 lo, hi;
+ 
++	pax_open_kernel();
+ 	machine_check_vector = winchip_machine_check;
++	pax_close_kernel();
+ 	/* Make sure the vector pointer is visible before we enable MCEs: */
+ 	wmb();
+ 
+diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
+index 15c9876..0a43909 100644
+--- a/arch/x86/kernel/cpu/microcode/core.c
++++ b/arch/x86/kernel/cpu/microcode/core.c
+@@ -513,7 +513,7 @@ mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata mc_cpu_notifier = {
++static struct notifier_block mc_cpu_notifier = {
+ 	.notifier_call	= mc_cpu_callback,
+ };
+ 
+diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
+index a276fa7..3ef18f0 100644
+--- a/arch/x86/kernel/cpu/microcode/intel.c
++++ b/arch/x86/kernel/cpu/microcode/intel.c
+@@ -196,6 +196,11 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
+ 		struct microcode_header_intel mc_header;
+ 		unsigned int mc_size;
+ 
++		if (leftover < sizeof(mc_header)) {
++			pr_err("error! Truncated header in microcode data file\n");
++			break;
++		}
++
+ 		if (get_ucode_data(&mc_header, ucode_ptr, sizeof(mc_header)))
+ 			break;
+ 
+@@ -293,13 +298,13 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
+ 
+ static int get_ucode_user(void *to, const void *from, size_t n)
+ {
+-	return copy_from_user(to, from, n);
++	return copy_from_user(to, (const void __force_user *)from, n);
+ }
+ 
+ static enum ucode_state
+ request_microcode_user(int cpu, const void __user *buf, size_t size)
+ {
+-	return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
++	return generic_load_microcode(cpu, (__force_kernel void *)buf, size, &get_ucode_user);
+ }
+ 
+ static void microcode_fini_cpu(int cpu)
+diff --git a/arch/x86/kernel/cpu/microcode/intel_early.c b/arch/x86/kernel/cpu/microcode/intel_early.c
+index 18f7391..8c5225d 100644
+--- a/arch/x86/kernel/cpu/microcode/intel_early.c
++++ b/arch/x86/kernel/cpu/microcode/intel_early.c
+@@ -321,7 +321,11 @@ get_matching_model_microcode(int cpu, unsigned long start,
+ 	unsigned int mc_saved_count = mc_saved_data->mc_saved_count;
+ 	int i;
+ 
+-	while (leftover) {
++	while (leftover && mc_saved_count < ARRAY_SIZE(mc_saved_tmp)) {
++
++		if (leftover < sizeof(mc_header))
++			break;
++
+ 		mc_header = (struct microcode_header_intel *)ucode_ptr;
+ 
+ 		mc_size = get_totalsize(mc_header);
+diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
+index f961de9..8a9d332 100644
+--- a/arch/x86/kernel/cpu/mtrr/main.c
++++ b/arch/x86/kernel/cpu/mtrr/main.c
+@@ -66,7 +66,7 @@ static DEFINE_MUTEX(mtrr_mutex);
+ u64 size_or_mask, size_and_mask;
+ static bool mtrr_aps_delayed_init;
+ 
+-static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM];
++static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only;
+ 
+ const struct mtrr_ops *mtrr_if;
+ 
+diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
+index df5e41f..816c719 100644
+--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
++++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
+@@ -25,7 +25,7 @@ struct mtrr_ops {
+ 	int	(*validate_add_page)(unsigned long base, unsigned long size,
+ 				     unsigned int type);
+ 	int	(*have_wrcomb)(void);
+-};
++} __do_const;
+ 
+ extern int generic_get_free_region(unsigned long base, unsigned long size,
+ 				   int replace_reg);
+diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
+index fb345c4..445b2d0 100644
+--- a/arch/x86/kernel/cpu/perf_event.c
++++ b/arch/x86/kernel/cpu/perf_event.c
+@@ -1354,7 +1354,7 @@ static void __init pmu_check_apic(void)
+ 	pr_info("no hardware sampling interrupt available.\n");
+ }
+ 
+-static struct attribute_group x86_pmu_format_group = {
++static attribute_group_no_const x86_pmu_format_group = {
+ 	.name = "format",
+ 	.attrs = NULL,
+ };
+@@ -1453,7 +1453,7 @@ static struct attribute *events_attr[] = {
+ 	NULL,
+ };
+ 
+-static struct attribute_group x86_pmu_events_group = {
++static attribute_group_no_const x86_pmu_events_group = {
+ 	.name = "events",
+ 	.attrs = events_attr,
+ };
+@@ -1974,7 +1974,7 @@ static unsigned long get_segment_base(unsigned int segment)
+ 		if (idx > GDT_ENTRIES)
+ 			return 0;
+ 
+-		desc = __this_cpu_ptr(&gdt_page.gdt[0]);
++		desc = get_cpu_gdt_table(smp_processor_id());
+ 	}
+ 
+ 	return get_desc_base(desc + idx);
+@@ -2064,7 +2064,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
+ 			break;
+ 
+ 		perf_callchain_store(entry, frame.return_address);
+-		fp = frame.next_frame;
++		fp = (const void __force_user *)frame.next_frame;
+ 	}
+ }
+ 
+diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.c b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
+index 639d128..e92d7e5 100644
+--- a/arch/x86/kernel/cpu/perf_event_amd_iommu.c
++++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
+@@ -405,7 +405,7 @@ static void perf_iommu_del(struct perf_event *event, int flags)
+ static __init int _init_events_attrs(struct perf_amd_iommu *perf_iommu)
+ {
+ 	struct attribute **attrs;
+-	struct attribute_group *attr_group;
++	attribute_group_no_const *attr_group;
+ 	int i = 0, j;
+ 
+ 	while (amd_iommu_v2_event_descs[i].attr.attr.name)
+diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
+index d4c0a0e..4057f84 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel.c
++++ b/arch/x86/kernel/cpu/perf_event_intel.c
+@@ -2354,10 +2354,10 @@ __init int intel_pmu_init(void)
+ 		x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3);
+ 
+ 	if (boot_cpu_has(X86_FEATURE_PDCM)) {
+-		u64 capabilities;
++		u64 capabilities = x86_pmu.intel_cap.capabilities;
+ 
+-		rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
+-		x86_pmu.intel_cap.capabilities = capabilities;
++		if (rdmsrl_safe(MSR_IA32_PERF_CAPABILITIES, &x86_pmu.intel_cap.capabilities))
++			x86_pmu.intel_cap.capabilities = capabilities;
+ 	}
+ 
+ 	intel_ds_init();
+diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
+index 95700e5..19779f8 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
++++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
+@@ -425,7 +425,7 @@ static struct attribute *rapl_events_cln_attr[] = {
+ 	NULL,
+ };
+ 
+-static struct attribute_group rapl_pmu_events_group = {
++static attribute_group_no_const rapl_pmu_events_group __read_only = {
+ 	.name = "events",
+ 	.attrs = NULL, /* patched at runtime */
+ };
+diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+index 2f98588..aa6f3c4 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
++++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+@@ -3342,7 +3342,7 @@ static void __init uncore_types_exit(struct intel_uncore_type **types)
+ static int __init uncore_type_init(struct intel_uncore_type *type)
+ {
+ 	struct intel_uncore_pmu *pmus;
+-	struct attribute_group *attr_group;
++	attribute_group_no_const *attr_group;
+ 	struct attribute **attrs;
+ 	int i, j;
+ 
+diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+index a80ab71..4089da5 100644
+--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
++++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+@@ -498,7 +498,7 @@ struct intel_uncore_box {
+ struct uncore_event_desc {
+ 	struct kobj_attribute attr;
+ 	const char *config;
+-};
++} __do_const;
+ 
+ #define INTEL_UNCORE_EVENT_DESC(_name, _config)			\
+ {								\
+diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
+index 7d9481c..99c7e4b 100644
+--- a/arch/x86/kernel/cpuid.c
++++ b/arch/x86/kernel/cpuid.c
+@@ -170,7 +170,7 @@ static int cpuid_class_cpu_callback(struct notifier_block *nfb,
+ 	return notifier_from_errno(err);
+ }
+ 
+-static struct notifier_block __refdata cpuid_class_cpu_notifier =
++static struct notifier_block cpuid_class_cpu_notifier =
+ {
+ 	.notifier_call = cpuid_class_cpu_callback,
+ };
+diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
+index a57902e..ebaae2a 100644
+--- a/arch/x86/kernel/crash.c
++++ b/arch/x86/kernel/crash.c
+@@ -57,10 +57,8 @@ static void kdump_nmi_callback(int cpu, struct pt_regs *regs)
+ {
+ #ifdef CONFIG_X86_32
+ 	struct pt_regs fixed_regs;
+-#endif
+ 
+-#ifdef CONFIG_X86_32
+-	if (!user_mode_vm(regs)) {
++	if (!user_mode(regs)) {
+ 		crash_fixup_ss_esp(&fixed_regs, regs);
+ 		regs = &fixed_regs;
+ 	}
+diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
+index afa64ad..dce67dd 100644
+--- a/arch/x86/kernel/crash_dump_64.c
++++ b/arch/x86/kernel/crash_dump_64.c
+@@ -36,7 +36,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
+ 		return -ENOMEM;
+ 
+ 	if (userbuf) {
+-		if (copy_to_user(buf, vaddr + offset, csize)) {
++		if (copy_to_user((char __force_user *)buf, vaddr + offset, csize)) {
+ 			iounmap(vaddr);
+ 			return -EFAULT;
+ 		}
+diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
+index f6dfd93..892ade4 100644
+--- a/arch/x86/kernel/doublefault.c
++++ b/arch/x86/kernel/doublefault.c
+@@ -12,7 +12,7 @@
+ 
+ #define DOUBLEFAULT_STACKSIZE (1024)
+ static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE];
+-#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE)
++#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2)
+ 
+ #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM)
+ 
+@@ -22,7 +22,7 @@ static void doublefault_fn(void)
+ 	unsigned long gdt, tss;
+ 
+ 	native_store_gdt(&gdt_desc);
+-	gdt = gdt_desc.address;
++	gdt = (unsigned long)gdt_desc.address;
+ 
+ 	printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size);
+ 
+@@ -59,10 +59,10 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
+ 		/* 0x2 bit is always set */
+ 		.flags		= X86_EFLAGS_SF | 0x2,
+ 		.sp		= STACK_START,
+-		.es		= __USER_DS,
++		.es		= __KERNEL_DS,
+ 		.cs		= __KERNEL_CS,
+ 		.ss		= __KERNEL_DS,
+-		.ds		= __USER_DS,
++		.ds		= __KERNEL_DS,
+ 		.fs		= __KERNEL_PERCPU,
+ 
+ 		.__cr3		= __pa_nodebug(swapper_pg_dir),
+diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
+index d9c12d3..3e70198 100644
+--- a/arch/x86/kernel/dumpstack.c
++++ b/arch/x86/kernel/dumpstack.c
+@@ -2,6 +2,9 @@
+  *  Copyright (C) 1991, 1992  Linus Torvalds
+  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
+  */
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++#define __INCLUDED_BY_HIDESYM 1
++#endif
+ #include <linux/kallsyms.h>
+ #include <linux/kprobes.h>
+ #include <linux/uaccess.h>
+@@ -33,23 +36,21 @@ static void printk_stack_address(unsigned long address, int reliable)
+ 
+ void printk_address(unsigned long address)
+ {
+-	pr_cont(" [<%p>] %pS\n", (void *)address, (void *)address);
++	pr_cont(" [<%p>] %pA\n", (void *)address, (void *)address);
+ }
+ 
+ #ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ static void
+ print_ftrace_graph_addr(unsigned long addr, void *data,
+ 			const struct stacktrace_ops *ops,
+-			struct thread_info *tinfo, int *graph)
++			struct task_struct *task, int *graph)
+ {
+-	struct task_struct *task;
+ 	unsigned long ret_addr;
+ 	int index;
+ 
+ 	if (addr != (unsigned long)return_to_handler)
+ 		return;
+ 
+-	task = tinfo->task;
+ 	index = task->curr_ret_stack;
+ 
+ 	if (!task->ret_stack || index < *graph)
+@@ -66,7 +67,7 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
+ static inline void
+ print_ftrace_graph_addr(unsigned long addr, void *data,
+ 			const struct stacktrace_ops *ops,
+-			struct thread_info *tinfo, int *graph)
++			struct task_struct *task, int *graph)
+ { }
+ #endif
+ 
+@@ -77,10 +78,8 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
+  * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack
+  */
+ 
+-static inline int valid_stack_ptr(struct thread_info *tinfo,
+-			void *p, unsigned int size, void *end)
++static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end)
+ {
+-	void *t = tinfo;
+ 	if (end) {
+ 		if (p < end && p >= (end-THREAD_SIZE))
+ 			return 1;
+@@ -91,14 +90,14 @@ static inline int valid_stack_ptr(struct thread_info *tinfo,
+ }
+ 
+ unsigned long
+-print_context_stack(struct thread_info *tinfo,
++print_context_stack(struct task_struct *task, void *stack_start,
+ 		unsigned long *stack, unsigned long bp,
+ 		const struct stacktrace_ops *ops, void *data,
+ 		unsigned long *end, int *graph)
+ {
+ 	struct stack_frame *frame = (struct stack_frame *)bp;
+ 
+-	while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) {
++	while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) {
+ 		unsigned long addr;
+ 
+ 		addr = *stack;
+@@ -110,7 +109,7 @@ print_context_stack(struct thread_info *tinfo,
+ 			} else {
+ 				ops->address(data, addr, 0);
+ 			}
+-			print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
++			print_ftrace_graph_addr(addr, data, ops, task, graph);
+ 		}
+ 		stack++;
+ 	}
+@@ -119,7 +118,7 @@ print_context_stack(struct thread_info *tinfo,
+ EXPORT_SYMBOL_GPL(print_context_stack);
+ 
+ unsigned long
+-print_context_stack_bp(struct thread_info *tinfo,
++print_context_stack_bp(struct task_struct *task, void *stack_start,
+ 		       unsigned long *stack, unsigned long bp,
+ 		       const struct stacktrace_ops *ops, void *data,
+ 		       unsigned long *end, int *graph)
+@@ -127,7 +126,7 @@ print_context_stack_bp(struct thread_info *tinfo,
+ 	struct stack_frame *frame = (struct stack_frame *)bp;
+ 	unsigned long *ret_addr = &frame->return_address;
+ 
+-	while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) {
++	while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) {
+ 		unsigned long addr = *ret_addr;
+ 
+ 		if (!__kernel_text_address(addr))
+@@ -136,7 +135,7 @@ print_context_stack_bp(struct thread_info *tinfo,
+ 		ops->address(data, addr, 1);
+ 		frame = frame->next_frame;
+ 		ret_addr = &frame->return_address;
+-		print_ftrace_graph_addr(addr, data, ops, tinfo, graph);
++		print_ftrace_graph_addr(addr, data, ops, task, graph);
+ 	}
+ 
+ 	return (unsigned long)frame;
+@@ -155,7 +154,7 @@ static int print_trace_stack(void *data, char *name)
+ static void print_trace_address(void *data, unsigned long addr, int reliable)
+ {
+ 	touch_nmi_watchdog();
+-	printk(data);
++	printk("%s", (char *)data);
+ 	printk_stack_address(addr, reliable);
+ }
+ 
+@@ -224,6 +223,8 @@ unsigned __kprobes long oops_begin(void)
+ }
+ EXPORT_SYMBOL_GPL(oops_begin);
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
+ {
+ 	if (regs && kexec_should_crash(current))
+@@ -245,7 +246,10 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
+ 		panic("Fatal exception in interrupt");
+ 	if (panic_on_oops)
+ 		panic("Fatal exception");
+-	do_exit(signr);
++
++	gr_handle_kernel_exploit();
++
++	do_group_exit(signr);
+ }
+ 
+ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
+@@ -273,7 +277,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
+ 	print_modules();
+ 	show_regs(regs);
+ #ifdef CONFIG_X86_32
+-	if (user_mode_vm(regs)) {
++	if (user_mode(regs)) {
+ 		sp = regs->sp;
+ 		ss = regs->ss & 0xffff;
+ 	} else {
+@@ -301,7 +305,7 @@ void die(const char *str, struct pt_regs *regs, long err)
+ 	unsigned long flags = oops_begin();
+ 	int sig = SIGSEGV;
+ 
+-	if (!user_mode_vm(regs))
++	if (!user_mode(regs))
+ 		report_bug(regs->ip, regs);
+ 
+ 	if (__die(str, regs, err))
+diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
+index f2a1770..10fa52d 100644
+--- a/arch/x86/kernel/dumpstack_32.c
++++ b/arch/x86/kernel/dumpstack_32.c
+@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 		bp = stack_frame(task, regs);
+ 
+ 	for (;;) {
+-		struct thread_info *context;
++		void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
+ 
+-		context = (struct thread_info *)
+-			((unsigned long)stack & (~(THREAD_SIZE - 1)));
+-		bp = ops->walk_stack(context, stack, bp, ops, data, NULL, &graph);
++		bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
+ 
+-		stack = (unsigned long *)context->previous_esp;
+-		if (!stack)
++		if (stack_start == task_stack_page(task))
+ 			break;
++		stack = *(unsigned long **)stack_start;
+ 		if (ops->stack(data, "IRQ") < 0)
+ 			break;
+ 		touch_nmi_watchdog();
+@@ -87,27 +85,28 @@ void show_regs(struct pt_regs *regs)
+ 	int i;
+ 
+ 	show_regs_print_info(KERN_EMERG);
+-	__show_regs(regs, !user_mode_vm(regs));
++	__show_regs(regs, !user_mode(regs));
+ 
+ 	/*
+ 	 * When in-kernel, we also print out the stack and code at the
+ 	 * time of the fault..
+ 	 */
+-	if (!user_mode_vm(regs)) {
++	if (!user_mode(regs)) {
+ 		unsigned int code_prologue = code_bytes * 43 / 64;
+ 		unsigned int code_len = code_bytes;
+ 		unsigned char c;
+ 		u8 *ip;
++		unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(0)[(0xffff & regs->cs) >> 3]);
+ 
+ 		pr_emerg("Stack:\n");
+ 		show_stack_log_lvl(NULL, regs, &regs->sp, 0, KERN_EMERG);
+ 
+ 		pr_emerg("Code:");
+ 
+-		ip = (u8 *)regs->ip - code_prologue;
++		ip = (u8 *)regs->ip - code_prologue + cs_base;
+ 		if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {
+ 			/* try starting at IP */
+-			ip = (u8 *)regs->ip;
++			ip = (u8 *)regs->ip + cs_base;
+ 			code_len = code_len - code_prologue + 1;
+ 		}
+ 		for (i = 0; i < code_len; i++, ip++) {
+@@ -116,7 +115,7 @@ void show_regs(struct pt_regs *regs)
+ 				pr_cont("  Bad EIP value.");
+ 				break;
+ 			}
+-			if (ip == (u8 *)regs->ip)
++			if (ip == (u8 *)regs->ip + cs_base)
+ 				pr_cont(" <%02x>", c);
+ 			else
+ 				pr_cont(" %02x", c);
+@@ -129,6 +128,7 @@ int is_valid_bugaddr(unsigned long ip)
+ {
+ 	unsigned short ud2;
+ 
++	ip = ktla_ktva(ip);
+ 	if (ip < PAGE_OFFSET)
+ 		return 0;
+ 	if (probe_kernel_address((unsigned short *)ip, ud2))
+@@ -136,3 +136,15 @@ int is_valid_bugaddr(unsigned long ip)
+ 
+ 	return ud2 == 0x0b0f;
+ }
++
++#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
++void pax_check_alloca(unsigned long size)
++{
++	unsigned long sp = (unsigned long)&sp, stack_left;
++
++	/* all kernel stacks are of the same size */
++	stack_left = sp & (THREAD_SIZE - 1);
++	BUG_ON(stack_left < 256 || size >= stack_left - 256);
++}
++EXPORT_SYMBOL(pax_check_alloca);
++#endif
+diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
+index 66e274a..81f4ebf 100644
+--- a/arch/x86/kernel/dumpstack_64.c
++++ b/arch/x86/kernel/dumpstack_64.c
+@@ -118,9 +118,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 	unsigned long *irq_stack_end =
+ 		(unsigned long *)per_cpu(irq_stack_ptr, cpu);
+ 	unsigned used = 0;
+-	struct thread_info *tinfo;
+ 	int graph = 0;
+ 	unsigned long dummy;
++	void *stack_start;
+ 
+ 	if (!task)
+ 		task = current;
+@@ -141,10 +141,10 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 	 * current stack address. If the stacks consist of nested
+ 	 * exceptions
+ 	 */
+-	tinfo = task_thread_info(task);
+ 	for (;;) {
+ 		char *id;
+ 		unsigned long *estack_end;
++
+ 		estack_end = in_exception_stack(cpu, (unsigned long)stack,
+ 						&used, &id);
+ 
+@@ -152,7 +152,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 			if (ops->stack(data, id) < 0)
+ 				break;
+ 
+-			bp = ops->walk_stack(tinfo, stack, bp, ops,
++			bp = ops->walk_stack(task, estack_end - EXCEPTION_STKSZ, stack, bp, ops,
+ 					     data, estack_end, &graph);
+ 			ops->stack(data, "<EOE>");
+ 			/*
+@@ -160,6 +160,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 			 * second-to-last pointer (index -2 to end) in the
+ 			 * exception stack:
+ 			 */
++			if ((u16)estack_end[-1] != __KERNEL_DS)
++				goto out;
+ 			stack = (unsigned long *) estack_end[-2];
+ 			continue;
+ 		}
+@@ -171,7 +173,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 			if (in_irq_stack(stack, irq_stack, irq_stack_end)) {
+ 				if (ops->stack(data, "IRQ") < 0)
+ 					break;
+-				bp = ops->walk_stack(tinfo, stack, bp,
++				bp = ops->walk_stack(task, irq_stack, stack, bp,
+ 					ops, data, irq_stack_end, &graph);
+ 				/*
+ 				 * We link to the next stack (which would be
+@@ -190,7 +192,9 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
+ 	/*
+ 	 * This handles the process stack:
+ 	 */
+-	bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph);
++	stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1));
++	bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph);
++out:
+ 	put_cpu();
+ }
+ EXPORT_SYMBOL(dump_trace);
+@@ -294,8 +298,55 @@ int is_valid_bugaddr(unsigned long ip)
+ {
+ 	unsigned short ud2;
+ 
+-	if (__copy_from_user(&ud2, (const void __user *) ip, sizeof(ud2)))
++	if (probe_kernel_address((unsigned short *)ip, ud2))
+ 		return 0;
+ 
+ 	return ud2 == 0x0b0f;
+ }
++
++#if defined(CONFIG_PAX_MEMORY_STACKLEAK) || defined(CONFIG_PAX_USERCOPY)
++void pax_check_alloca(unsigned long size)
++{
++	unsigned long sp = (unsigned long)&sp, stack_start, stack_end;
++	unsigned cpu, used;
++	char *id;
++
++	/* check the process stack first */
++	stack_start = (unsigned long)task_stack_page(current);
++	stack_end = stack_start + THREAD_SIZE;
++	if (likely(stack_start <= sp && sp < stack_end)) {
++		unsigned long stack_left = sp & (THREAD_SIZE - 1);
++		BUG_ON(stack_left < 256 || size >= stack_left - 256);
++		return;
++	}
++
++	cpu = get_cpu();
++
++	/* check the irq stacks */
++	stack_end = (unsigned long)per_cpu(irq_stack_ptr, cpu);
++	stack_start = stack_end - IRQ_STACK_SIZE;
++	if (stack_start <= sp && sp < stack_end) {
++		unsigned long stack_left = sp & (IRQ_STACK_SIZE - 1);
++		put_cpu();
++		BUG_ON(stack_left < 256 || size >= stack_left - 256);
++		return;
++	}
++
++	/* check the exception stacks */
++	used = 0;
++	stack_end = (unsigned long)in_exception_stack(cpu, sp, &used, &id);
++	stack_start = stack_end - EXCEPTION_STKSZ;
++	if (stack_end && stack_start <= sp && sp < stack_end) {
++		unsigned long stack_left = sp & (EXCEPTION_STKSZ - 1);
++		put_cpu();
++		BUG_ON(stack_left < 256 || size >= stack_left - 256);
++		return;
++	}
++
++	put_cpu();
++
++	/* unknown stack */
++	BUG();
++}
++EXPORT_SYMBOL(pax_check_alloca);
++#endif
+diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
+index 988c00a..4f673b6 100644
+--- a/arch/x86/kernel/e820.c
++++ b/arch/x86/kernel/e820.c
+@@ -803,8 +803,8 @@ unsigned long __init e820_end_of_low_ram_pfn(void)
+ 
+ static void early_panic(char *msg)
+ {
+-	early_printk(msg);
+-	panic(msg);
++	early_printk("%s", msg);
++	panic("%s", msg);
+ }
+ 
+ static int userdef __initdata;
+diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
+index 01d1c18..8073693 100644
+--- a/arch/x86/kernel/early_printk.c
++++ b/arch/x86/kernel/early_printk.c
+@@ -7,6 +7,7 @@
+ #include <linux/pci_regs.h>
+ #include <linux/pci_ids.h>
+ #include <linux/errno.h>
++#include <linux/sched.h>
+ #include <asm/io.h>
+ #include <asm/processor.h>
+ #include <asm/fcntl.h>
+diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
+index c5a9cb9..b6a5426 100644
+--- a/arch/x86/kernel/entry_32.S
++++ b/arch/x86/kernel/entry_32.S
+@@ -177,13 +177,154 @@
+ 	/*CFI_REL_OFFSET gs, PT_GS*/
+ .endm
+ .macro SET_KERNEL_GS reg
++
++#ifdef CONFIG_CC_STACKPROTECTOR
+ 	movl $(__KERNEL_STACK_CANARY), \reg
++#elif defined(CONFIG_PAX_MEMORY_UDEREF)
++	movl $(__USER_DS), \reg
++#else
++	xorl \reg, \reg
++#endif
++
+ 	movl \reg, %gs
+ .endm
+ 
+ #endif	/* CONFIG_X86_32_LAZY_GS */
+ 
+-.macro SAVE_ALL
++.macro pax_enter_kernel
++#ifdef CONFIG_PAX_KERNEXEC
++	call pax_enter_kernel
++#endif
++.endm
++
++.macro pax_exit_kernel
++#ifdef CONFIG_PAX_KERNEXEC
++	call pax_exit_kernel
++#endif
++.endm
++
++#ifdef CONFIG_PAX_KERNEXEC
++ENTRY(pax_enter_kernel)
++#ifdef CONFIG_PARAVIRT
++	pushl %eax
++	pushl %ecx
++	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0)
++	mov %eax, %esi
++#else
++	mov %cr0, %esi
++#endif
++	bts $16, %esi
++	jnc 1f
++	mov %cs, %esi
++	cmp $__KERNEL_CS, %esi
++	jz 3f
++	ljmp $__KERNEL_CS, $3f
++1:	ljmp $__KERNEXEC_KERNEL_CS, $2f
++2:
++#ifdef CONFIG_PARAVIRT
++	mov %esi, %eax
++	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0)
++#else
++	mov %esi, %cr0
++#endif
++3:
++#ifdef CONFIG_PARAVIRT
++	popl %ecx
++	popl %eax
++#endif
++	ret
++ENDPROC(pax_enter_kernel)
++
++ENTRY(pax_exit_kernel)
++#ifdef CONFIG_PARAVIRT
++	pushl %eax
++	pushl %ecx
++#endif
++	mov %cs, %esi
++	cmp $__KERNEXEC_KERNEL_CS, %esi
++	jnz 2f
++#ifdef CONFIG_PARAVIRT
++	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0);
++	mov %eax, %esi
++#else
++	mov %cr0, %esi
++#endif
++	btr $16, %esi
++	ljmp $__KERNEL_CS, $1f
++1:
++#ifdef CONFIG_PARAVIRT
++	mov %esi, %eax
++	call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0);
++#else
++	mov %esi, %cr0
++#endif
++2:
++#ifdef CONFIG_PARAVIRT
++	popl %ecx
++	popl %eax
++#endif
++	ret
++ENDPROC(pax_exit_kernel)
++#endif
++
++	.macro pax_erase_kstack
++#ifdef CONFIG_PAX_MEMORY_STACKLEAK
++	call pax_erase_kstack
++#endif
++	.endm
++
++#ifdef CONFIG_PAX_MEMORY_STACKLEAK
++/*
++ * ebp: thread_info
++ */
++ENTRY(pax_erase_kstack)
++	pushl %edi
++	pushl %ecx
++	pushl %eax
++
++	mov TI_lowest_stack(%ebp), %edi
++	mov $-0xBEEF, %eax
++	std
++
++1:	mov %edi, %ecx
++	and $THREAD_SIZE_asm - 1, %ecx
++	shr $2, %ecx
++	repne scasl
++	jecxz 2f
++
++	cmp $2*16, %ecx
++	jc 2f
++
++	mov $2*16, %ecx
++	repe scasl
++	jecxz 2f
++	jne 1b
++
++2:	cld
++	or $2*4, %edi
++	mov %esp, %ecx
++	sub %edi, %ecx
++
++	cmp $THREAD_SIZE_asm, %ecx
++	jb 3f
++	ud2
++3:
++
++	shr $2, %ecx
++	rep stosl
++
++	mov TI_task_thread_sp0(%ebp), %edi
++	sub $128, %edi
++	mov %edi, TI_lowest_stack(%ebp)
++
++	popl %eax
++	popl %ecx
++	popl %edi
++	ret
++ENDPROC(pax_erase_kstack)
++#endif
++
++.macro __SAVE_ALL _DS
+ 	cld
+ 	PUSH_GS
+ 	pushl_cfi %fs
+@@ -206,7 +347,7 @@
+ 	CFI_REL_OFFSET ecx, 0
+ 	pushl_cfi %ebx
+ 	CFI_REL_OFFSET ebx, 0
+-	movl $(__USER_DS), %edx
++	movl $\_DS, %edx
+ 	movl %edx, %ds
+ 	movl %edx, %es
+ 	movl $(__KERNEL_PERCPU), %edx
+@@ -214,6 +355,15 @@
+ 	SET_KERNEL_GS %edx
+ .endm
+ 
++.macro SAVE_ALL
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	__SAVE_ALL __KERNEL_DS
++	pax_enter_kernel
++#else
++	__SAVE_ALL __USER_DS
++#endif
++.endm
++
+ .macro RESTORE_INT_REGS
+ 	popl_cfi %ebx
+ 	CFI_RESTORE ebx
+@@ -297,7 +447,7 @@ ENTRY(ret_from_fork)
+ 	popfl_cfi
+ 	jmp syscall_exit
+ 	CFI_ENDPROC
+-END(ret_from_fork)
++ENDPROC(ret_from_fork)
+ 
+ ENTRY(ret_from_kernel_thread)
+ 	CFI_STARTPROC
+@@ -344,7 +494,15 @@ ret_from_intr:
+ 	andl $SEGMENT_RPL_MASK, %eax
+ #endif
+ 	cmpl $USER_RPL, %eax
++
++#ifdef CONFIG_PAX_KERNEXEC
++	jae resume_userspace
++
++	pax_exit_kernel
++	jmp resume_kernel
++#else
+ 	jb resume_kernel		# not returning to v8086 or userspace
++#endif
+ 
+ ENTRY(resume_userspace)
+ 	LOCKDEP_SYS_EXIT
+@@ -356,8 +514,8 @@ ENTRY(resume_userspace)
+ 	andl $_TIF_WORK_MASK, %ecx	# is there any work to be done on
+ 					# int/exception return?
+ 	jne work_pending
+-	jmp restore_all
+-END(ret_from_exception)
++	jmp restore_all_pax
++ENDPROC(ret_from_exception)
+ 
+ #ifdef CONFIG_PREEMPT
+ ENTRY(resume_kernel)
+@@ -369,7 +527,7 @@ need_resched:
+ 	jz restore_all
+ 	call preempt_schedule_irq
+ 	jmp need_resched
+-END(resume_kernel)
++ENDPROC(resume_kernel)
+ #endif
+ 	CFI_ENDPROC
+ /*
+@@ -403,30 +561,45 @@ sysenter_past_esp:
+ 	/*CFI_REL_OFFSET cs, 0*/
+ 	/*
+ 	 * Push current_thread_info()->sysenter_return to the stack.
+-	 * A tiny bit of offset fixup is necessary - 4*4 means the 4 words
+-	 * pushed above; +8 corresponds to copy_thread's esp0 setting.
+ 	 */
+-	pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp)
++	pushl_cfi $0
+ 	CFI_REL_OFFSET eip, 0
+ 
+ 	pushl_cfi %eax
+ 	SAVE_ALL
++	GET_THREAD_INFO(%ebp)
++	movl TI_sysenter_return(%ebp),%ebp
++	movl %ebp,PT_EIP(%esp)
+ 	ENABLE_INTERRUPTS(CLBR_NONE)
+ 
+ /*
+  * Load the potential sixth argument from user stack.
+  * Careful about security.
+  */
++	movl PT_OLDESP(%esp),%ebp
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	mov PT_OLDSS(%esp),%ds
++1:	movl %ds:(%ebp),%ebp
++	push %ss
++	pop %ds
++#else
+ 	cmpl $__PAGE_OFFSET-3,%ebp
+ 	jae syscall_fault
+ 	ASM_STAC
+ 1:	movl (%ebp),%ebp
+ 	ASM_CLAC
++#endif
++
+ 	movl %ebp,PT_EBP(%esp)
+ 	_ASM_EXTABLE(1b,syscall_fault)
+ 
+ 	GET_THREAD_INFO(%ebp)
+ 
++#ifdef CONFIG_PAX_RANDKSTACK
++	pax_erase_kstack
++#endif
++
+ 	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
+ 	jnz sysenter_audit
+ sysenter_do_call:
+@@ -442,12 +615,24 @@ sysenter_after_call:
+ 	testl $_TIF_ALLWORK_MASK, %ecx
+ 	jne sysexit_audit
+ sysenter_exit:
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	pushl_cfi %eax
++	movl %esp, %eax
++	call pax_randomize_kstack
++	popl_cfi %eax
++#endif
++
++	pax_erase_kstack
++
+ /* if something modifies registers it must also disable sysexit */
+ 	movl PT_EIP(%esp), %edx
+ 	movl PT_OLDESP(%esp), %ecx
+ 	xorl %ebp,%ebp
+ 	TRACE_IRQS_ON
+ 1:	mov  PT_FS(%esp), %fs
++2:	mov  PT_DS(%esp), %ds
++3:	mov  PT_ES(%esp), %es
+ 	PTGS_TO_GS
+ 	ENABLE_INTERRUPTS_SYSEXIT
+ 
+@@ -464,6 +649,9 @@ sysenter_audit:
+ 	movl %eax,%edx			/* 2nd arg: syscall number */
+ 	movl $AUDIT_ARCH_I386,%eax	/* 1st arg: audit arch */
+ 	call __audit_syscall_entry
++
++	pax_erase_kstack
++
+ 	pushl_cfi %ebx
+ 	movl PT_EAX(%esp),%eax		/* reload syscall number */
+ 	jmp sysenter_do_call
+@@ -489,10 +677,16 @@ sysexit_audit:
+ 
+ 	CFI_ENDPROC
+ .pushsection .fixup,"ax"
+-2:	movl $0,PT_FS(%esp)
++4:	movl $0,PT_FS(%esp)
++	jmp 1b
++5:	movl $0,PT_DS(%esp)
++	jmp 1b
++6:	movl $0,PT_ES(%esp)
+ 	jmp 1b
+ .popsection
+-	_ASM_EXTABLE(1b,2b)
++	_ASM_EXTABLE(1b,4b)
++	_ASM_EXTABLE(2b,5b)
++	_ASM_EXTABLE(3b,6b)
+ 	PTGS_TO_GS_EX
+ ENDPROC(ia32_sysenter_target)
+ 
+@@ -507,6 +701,11 @@ ENTRY(system_call)
+ 	pushl_cfi %eax			# save orig_eax
+ 	SAVE_ALL
+ 	GET_THREAD_INFO(%ebp)
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	pax_erase_kstack
++#endif
++
+ 					# system call tracing in operation / emulation
+ 	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%ebp)
+ 	jnz syscall_trace_entry
+@@ -526,6 +725,15 @@ syscall_exit:
+ 	testl $_TIF_ALLWORK_MASK, %ecx	# current->work
+ 	jne syscall_exit_work
+ 
++restore_all_pax:
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	movl %esp, %eax
++	call pax_randomize_kstack
++#endif
++
++	pax_erase_kstack
++
+ restore_all:
+ 	TRACE_IRQS_IRET
+ restore_all_notrace:
+@@ -580,14 +788,34 @@ ldt_ss:
+  * compensating for the offset by changing to the ESPFIX segment with
+  * a base address that matches for the difference.
+  */
+-#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8)
++#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx)
+ 	mov %esp, %edx			/* load kernel esp */
+ 	mov PT_OLDESP(%esp), %eax	/* load userspace esp */
+ 	mov %dx, %ax			/* eax: new kernel esp */
+ 	sub %eax, %edx			/* offset (low word is 0) */
++#ifdef CONFIG_SMP
++	movl PER_CPU_VAR(cpu_number), %ebx
++	shll $PAGE_SHIFT_asm, %ebx
++	addl $cpu_gdt_table, %ebx
++#else
++	movl $cpu_gdt_table, %ebx
++#endif
+ 	shr $16, %edx
+-	mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
+-	mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
++
++#ifdef CONFIG_PAX_KERNEXEC
++	mov %cr0, %esi
++	btr $16, %esi
++	mov %esi, %cr0
++#endif
++
++	mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */
++	mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */
++
++#ifdef CONFIG_PAX_KERNEXEC
++	bts $16, %esi
++	mov %esi, %cr0
++#endif
++
+ 	pushl_cfi $__ESPFIX_SS
+ 	pushl_cfi %eax			/* new kernel esp */
+ 	/* Disable interrupts, but do not irqtrace this section: we
+@@ -617,20 +845,18 @@ work_resched:
+ 	movl TI_flags(%ebp), %ecx
+ 	andl $_TIF_WORK_MASK, %ecx	# is there any work to be done other
+ 					# than syscall tracing?
+-	jz restore_all
++	jz restore_all_pax
+ 	testb $_TIF_NEED_RESCHED, %cl
+ 	jnz work_resched
+ 
+ work_notifysig:				# deal with pending signals and
+ 					# notify-resume requests
++	movl %esp, %eax
+ #ifdef CONFIG_VM86
+ 	testl $X86_EFLAGS_VM, PT_EFLAGS(%esp)
+-	movl %esp, %eax
+ 	jne work_notifysig_v86		# returning to kernel-space or
+ 					# vm86-space
+ 1:
+-#else
+-	movl %esp, %eax
+ #endif
+ 	TRACE_IRQS_ON
+ 	ENABLE_INTERRUPTS(CLBR_NONE)
+@@ -651,7 +877,7 @@ work_notifysig_v86:
+ 	movl %eax, %esp
+ 	jmp 1b
+ #endif
+-END(work_pending)
++ENDPROC(work_pending)
+ 
+ 	# perform syscall exit tracing
+ 	ALIGN
+@@ -659,11 +885,14 @@ syscall_trace_entry:
+ 	movl $-ENOSYS,PT_EAX(%esp)
+ 	movl %esp, %eax
+ 	call syscall_trace_enter
++
++	pax_erase_kstack
++
+ 	/* What it returned is what we'll actually use.  */
+ 	cmpl $(NR_syscalls), %eax
+ 	jnae syscall_call
+ 	jmp syscall_exit
+-END(syscall_trace_entry)
++ENDPROC(syscall_trace_entry)
+ 
+ 	# perform syscall exit tracing
+ 	ALIGN
+@@ -676,26 +905,30 @@ syscall_exit_work:
+ 	movl %esp, %eax
+ 	call syscall_trace_leave
+ 	jmp resume_userspace
+-END(syscall_exit_work)
++ENDPROC(syscall_exit_work)
+ 	CFI_ENDPROC
+ 
+ 	RING0_INT_FRAME			# can't unwind into user space anyway
+ syscall_fault:
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	push %ss
++	pop %ds
++#endif
+ 	ASM_CLAC
+ 	GET_THREAD_INFO(%ebp)
+ 	movl $-EFAULT,PT_EAX(%esp)
+ 	jmp resume_userspace
+-END(syscall_fault)
++ENDPROC(syscall_fault)
+ 
+ syscall_badsys:
+ 	movl $-ENOSYS,%eax
+ 	jmp syscall_after_call
+-END(syscall_badsys)
++ENDPROC(syscall_badsys)
+ 
+ sysenter_badsys:
+ 	movl $-ENOSYS,%eax
+ 	jmp sysenter_after_call
+-END(syscall_badsys)
++ENDPROC(sysenter_badsys)
+ 	CFI_ENDPROC
+ /*
+  * End of kprobes section
+@@ -712,8 +945,15 @@ END(syscall_badsys)
+  */
+ #ifdef CONFIG_X86_ESPFIX32
+ 	/* fixup the stack */
+-	mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
+-	mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
++#ifdef CONFIG_SMP
++	movl PER_CPU_VAR(cpu_number), %ebx
++	shll $PAGE_SHIFT_asm, %ebx
++	addl $cpu_gdt_table, %ebx
++#else
++	movl $cpu_gdt_table, %ebx
++#endif
++	mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */
++	mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */
+ 	shl $16, %eax
+ 	addl %esp, %eax			/* the adjusted stack pointer */
+ 	pushl_cfi $__KERNEL_DS
+@@ -769,7 +1009,7 @@ vector=vector+1
+   .endr
+ 2:	jmp common_interrupt
+ .endr
+-END(irq_entries_start)
++ENDPROC(irq_entries_start)
+ 
+ .previous
+ END(interrupt)
+@@ -830,7 +1070,7 @@ ENTRY(coprocessor_error)
+ 	pushl_cfi $do_coprocessor_error
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(coprocessor_error)
++ENDPROC(coprocessor_error)
+ 
+ ENTRY(simd_coprocessor_error)
+ 	RING0_INT_FRAME
+@@ -843,7 +1083,7 @@ ENTRY(simd_coprocessor_error)
+ .section .altinstructions,"a"
+ 	altinstruction_entry 661b, 663f, X86_FEATURE_XMM, 662b-661b, 664f-663f
+ .previous
+-.section .altinstr_replacement,"ax"
++.section .altinstr_replacement,"a"
+ 663:	pushl $do_simd_coprocessor_error
+ 664:
+ .previous
+@@ -852,7 +1092,7 @@ ENTRY(simd_coprocessor_error)
+ #endif
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(simd_coprocessor_error)
++ENDPROC(simd_coprocessor_error)
+ 
+ ENTRY(device_not_available)
+ 	RING0_INT_FRAME
+@@ -861,18 +1101,18 @@ ENTRY(device_not_available)
+ 	pushl_cfi $do_device_not_available
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(device_not_available)
++ENDPROC(device_not_available)
+ 
+ #ifdef CONFIG_PARAVIRT
+ ENTRY(native_iret)
+ 	iret
+ 	_ASM_EXTABLE(native_iret, iret_exc)
+-END(native_iret)
++ENDPROC(native_iret)
+ 
+ ENTRY(native_irq_enable_sysexit)
+ 	sti
+ 	sysexit
+-END(native_irq_enable_sysexit)
++ENDPROC(native_irq_enable_sysexit)
+ #endif
+ 
+ ENTRY(overflow)
+@@ -882,7 +1122,7 @@ ENTRY(overflow)
+ 	pushl_cfi $do_overflow
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(overflow)
++ENDPROC(overflow)
+ 
+ ENTRY(bounds)
+ 	RING0_INT_FRAME
+@@ -891,7 +1131,7 @@ ENTRY(bounds)
+ 	pushl_cfi $do_bounds
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(bounds)
++ENDPROC(bounds)
+ 
+ ENTRY(invalid_op)
+ 	RING0_INT_FRAME
+@@ -900,7 +1140,7 @@ ENTRY(invalid_op)
+ 	pushl_cfi $do_invalid_op
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(invalid_op)
++ENDPROC(invalid_op)
+ 
+ ENTRY(coprocessor_segment_overrun)
+ 	RING0_INT_FRAME
+@@ -909,7 +1149,7 @@ ENTRY(coprocessor_segment_overrun)
+ 	pushl_cfi $do_coprocessor_segment_overrun
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(coprocessor_segment_overrun)
++ENDPROC(coprocessor_segment_overrun)
+ 
+ ENTRY(invalid_TSS)
+ 	RING0_EC_FRAME
+@@ -917,7 +1157,7 @@ ENTRY(invalid_TSS)
+ 	pushl_cfi $do_invalid_TSS
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(invalid_TSS)
++ENDPROC(invalid_TSS)
+ 
+ ENTRY(segment_not_present)
+ 	RING0_EC_FRAME
+@@ -925,7 +1165,7 @@ ENTRY(segment_not_present)
+ 	pushl_cfi $do_segment_not_present
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(segment_not_present)
++ENDPROC(segment_not_present)
+ 
+ ENTRY(stack_segment)
+ 	RING0_EC_FRAME
+@@ -933,7 +1173,7 @@ ENTRY(stack_segment)
+ 	pushl_cfi $do_stack_segment
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(stack_segment)
++ENDPROC(stack_segment)
+ 
+ ENTRY(alignment_check)
+ 	RING0_EC_FRAME
+@@ -941,7 +1181,7 @@ ENTRY(alignment_check)
+ 	pushl_cfi $do_alignment_check
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(alignment_check)
++ENDPROC(alignment_check)
+ 
+ ENTRY(divide_error)
+ 	RING0_INT_FRAME
+@@ -950,7 +1190,7 @@ ENTRY(divide_error)
+ 	pushl_cfi $do_divide_error
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(divide_error)
++ENDPROC(divide_error)
+ 
+ #ifdef CONFIG_X86_MCE
+ ENTRY(machine_check)
+@@ -960,7 +1200,7 @@ ENTRY(machine_check)
+ 	pushl_cfi machine_check_vector
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(machine_check)
++ENDPROC(machine_check)
+ #endif
+ 
+ ENTRY(spurious_interrupt_bug)
+@@ -970,7 +1210,7 @@ ENTRY(spurious_interrupt_bug)
+ 	pushl_cfi $do_spurious_interrupt_bug
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(spurious_interrupt_bug)
++ENDPROC(spurious_interrupt_bug)
+ /*
+  * End of kprobes section
+  */
+@@ -1080,7 +1320,7 @@ BUILD_INTERRUPT3(hyperv_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
+ 
+ ENTRY(mcount)
+ 	ret
+-END(mcount)
++ENDPROC(mcount)
+ 
+ ENTRY(ftrace_caller)
+ 	cmpl $0, function_trace_stop
+@@ -1113,7 +1353,7 @@ ftrace_graph_call:
+ .globl ftrace_stub
+ ftrace_stub:
+ 	ret
+-END(ftrace_caller)
++ENDPROC(ftrace_caller)
+ 
+ ENTRY(ftrace_regs_caller)
+ 	pushf	/* push flags before compare (in cs location) */
+@@ -1217,7 +1457,7 @@ trace:
+ 	popl %ecx
+ 	popl %eax
+ 	jmp ftrace_stub
+-END(mcount)
++ENDPROC(mcount)
+ #endif /* CONFIG_DYNAMIC_FTRACE */
+ #endif /* CONFIG_FUNCTION_TRACER */
+ 
+@@ -1235,7 +1475,7 @@ ENTRY(ftrace_graph_caller)
+ 	popl %ecx
+ 	popl %eax
+ 	ret
+-END(ftrace_graph_caller)
++ENDPROC(ftrace_graph_caller)
+ 
+ .globl return_to_handler
+ return_to_handler:
+@@ -1301,15 +1541,18 @@ error_code:
+ 	movl $-1, PT_ORIG_EAX(%esp)	# no syscall to restart
+ 	REG_TO_PTGS %ecx
+ 	SET_KERNEL_GS %ecx
+-	movl $(__USER_DS), %ecx
++	movl $(__KERNEL_DS), %ecx
+ 	movl %ecx, %ds
+ 	movl %ecx, %es
++
++	pax_enter_kernel
++
+ 	TRACE_IRQS_OFF
+ 	movl %esp,%eax			# pt_regs pointer
+ 	call *%edi
+ 	jmp ret_from_exception
+ 	CFI_ENDPROC
+-END(page_fault)
++ENDPROC(page_fault)
+ 
+ /*
+  * Debug traps and NMI can happen at the one SYSENTER instruction
+@@ -1352,7 +1595,7 @@ debug_stack_correct:
+ 	call do_debug
+ 	jmp ret_from_exception
+ 	CFI_ENDPROC
+-END(debug)
++ENDPROC(debug)
+ 
+ /*
+  * NMI is doubly nasty. It can happen _while_ we're handling
+@@ -1392,6 +1635,9 @@ nmi_stack_correct:
+ 	xorl %edx,%edx		# zero error code
+ 	movl %esp,%eax		# pt_regs pointer
+ 	call do_nmi
++
++	pax_exit_kernel
++
+ 	jmp restore_all_notrace
+ 	CFI_ENDPROC
+ 
+@@ -1429,13 +1675,16 @@ nmi_espfix_stack:
+ 	FIXUP_ESPFIX_STACK		# %eax == %esp
+ 	xorl %edx,%edx			# zero error code
+ 	call do_nmi
++
++	pax_exit_kernel
++
+ 	RESTORE_REGS
+ 	lss 12+4(%esp), %esp		# back to espfix stack
+ 	CFI_ADJUST_CFA_OFFSET -24
+ 	jmp irq_return
+ #endif
+ 	CFI_ENDPROC
+-END(nmi)
++ENDPROC(nmi)
+ 
+ ENTRY(int3)
+ 	RING0_INT_FRAME
+@@ -1448,14 +1697,14 @@ ENTRY(int3)
+ 	call do_int3
+ 	jmp ret_from_exception
+ 	CFI_ENDPROC
+-END(int3)
++ENDPROC(int3)
+ 
+ ENTRY(general_protection)
+ 	RING0_EC_FRAME
+ 	pushl_cfi $do_general_protection
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(general_protection)
++ENDPROC(general_protection)
+ 
+ #ifdef CONFIG_KVM_GUEST
+ ENTRY(async_page_fault)
+@@ -1464,7 +1713,7 @@ ENTRY(async_page_fault)
+ 	pushl_cfi $do_async_page_fault
+ 	jmp error_code
+ 	CFI_ENDPROC
+-END(async_page_fault)
++ENDPROC(async_page_fault)
+ #endif
+ 
+ /*
+diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
+index 06469ee..ff1450f4 100644
+--- a/arch/x86/kernel/entry_64.S
++++ b/arch/x86/kernel/entry_64.S
+@@ -60,6 +60,8 @@
+ #include <asm/smap.h>
+ #include <asm/pgtable_types.h>
+ #include <linux/err.h>
++#include <asm/pgtable.h>
++#include <asm/alternative-asm.h>
+ 
+ /* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this.  */
+ #include <linux/elf-em.h>
+@@ -81,8 +83,9 @@
+ #ifdef CONFIG_DYNAMIC_FTRACE
+ 
+ ENTRY(function_hook)
++	pax_force_retaddr
+ 	retq
+-END(function_hook)
++ENDPROC(function_hook)
+ 
+ /* skip is set if stack has been adjusted */
+ .macro ftrace_caller_setup skip=0
+@@ -123,8 +126,9 @@ GLOBAL(ftrace_graph_call)
+ #endif
+ 
+ GLOBAL(ftrace_stub)
++	pax_force_retaddr
+ 	retq
+-END(ftrace_caller)
++ENDPROC(ftrace_caller)
+ 
+ ENTRY(ftrace_regs_caller)
+ 	/* Save the current flags before compare (in SS location)*/
+@@ -192,7 +196,7 @@ ftrace_restore_flags:
+ 	popfq
+ 	jmp  ftrace_stub
+ 
+-END(ftrace_regs_caller)
++ENDPROC(ftrace_regs_caller)
+ 
+ 
+ #else /* ! CONFIG_DYNAMIC_FTRACE */
+@@ -213,6 +217,7 @@ ENTRY(function_hook)
+ #endif
+ 
+ GLOBAL(ftrace_stub)
++	pax_force_retaddr
+ 	retq
+ 
+ trace:
+@@ -226,12 +231,13 @@ trace:
+ #endif
+ 	subq $MCOUNT_INSN_SIZE, %rdi
+ 
++	pax_force_fptr ftrace_trace_function
+ 	call   *ftrace_trace_function
+ 
+ 	MCOUNT_RESTORE_FRAME
+ 
+ 	jmp ftrace_stub
+-END(function_hook)
++ENDPROC(function_hook)
+ #endif /* CONFIG_DYNAMIC_FTRACE */
+ #endif /* CONFIG_FUNCTION_TRACER */
+ 
+@@ -253,8 +259,9 @@ ENTRY(ftrace_graph_caller)
+ 
+ 	MCOUNT_RESTORE_FRAME
+ 
++	pax_force_retaddr
+ 	retq
+-END(ftrace_graph_caller)
++ENDPROC(ftrace_graph_caller)
+ 
+ GLOBAL(return_to_handler)
+ 	subq  $24, %rsp
+@@ -270,7 +277,9 @@ GLOBAL(return_to_handler)
+ 	movq 8(%rsp), %rdx
+ 	movq (%rsp), %rax
+ 	addq $24, %rsp
++	pax_force_fptr %rdi
+ 	jmp *%rdi
++ENDPROC(return_to_handler)
+ #endif
+ 
+ 
+@@ -285,6 +294,431 @@ ENTRY(native_usergs_sysret64)
+ ENDPROC(native_usergs_sysret64)
+ #endif /* CONFIG_PARAVIRT */
+ 
++	.macro ljmpq sel, off
++#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM)
++	.byte 0x48; ljmp *1234f(%rip)
++	.pushsection .rodata
++	.align 16
++	1234: .quad \off; .word \sel
++	.popsection
++#else
++	pushq $\sel
++	pushq $\off
++	lretq
++#endif
++	.endm
++
++	.macro pax_enter_kernel
++	pax_set_fptr_mask
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	call pax_enter_kernel
++#endif
++	.endm
++
++	.macro pax_exit_kernel
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	call pax_exit_kernel
++#endif
++
++	.endm
++
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++ENTRY(pax_enter_kernel)
++	pushq %rdi
++
++#ifdef CONFIG_PARAVIRT
++	PV_SAVE_REGS(CLBR_RDI)
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++	GET_CR0_INTO_RDI
++	bts $16,%rdi
++	jnc 3f
++	mov %cs,%edi
++	cmp $__KERNEL_CS,%edi
++	jnz 2f
++1:
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	661: jmp 111f
++	.pushsection .altinstr_replacement, "a"
++	662: ASM_NOP2
++	.popsection
++	.pushsection .altinstructions, "a"
++	altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
++	.popsection
++	GET_CR3_INTO_RDI
++	cmp $0,%dil
++	jnz 112f
++	mov $__KERNEL_DS,%edi
++	mov %edi,%ss
++	jmp 111f
++112:	cmp $1,%dil
++	jz 113f
++	ud2
++113:	sub $4097,%rdi
++	bts $63,%rdi
++	SET_RDI_INTO_CR3
++	mov $__UDEREF_KERNEL_DS,%edi
++	mov %edi,%ss
++111:
++#endif
++
++#ifdef CONFIG_PARAVIRT
++	PV_RESTORE_REGS(CLBR_RDI)
++#endif
++
++	popq %rdi
++	pax_force_retaddr
++	retq
++
++#ifdef CONFIG_PAX_KERNEXEC
++2:	ljmpq __KERNEL_CS,1b
++3:	ljmpq __KERNEXEC_KERNEL_CS,4f
++4:	SET_RDI_INTO_CR0
++	jmp 1b
++#endif
++ENDPROC(pax_enter_kernel)
++
++ENTRY(pax_exit_kernel)
++	pushq %rdi
++
++#ifdef CONFIG_PARAVIRT
++	PV_SAVE_REGS(CLBR_RDI)
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++	mov %cs,%rdi
++	cmp $__KERNEXEC_KERNEL_CS,%edi
++	jz 2f
++	GET_CR0_INTO_RDI
++	bts $16,%rdi
++	jnc 4f
++1:
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	661: jmp 111f
++	.pushsection .altinstr_replacement, "a"
++	662: ASM_NOP2
++	.popsection
++	.pushsection .altinstructions, "a"
++	altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
++	.popsection
++	mov %ss,%edi
++	cmp $__UDEREF_KERNEL_DS,%edi
++	jnz 111f
++	GET_CR3_INTO_RDI
++	cmp $0,%dil
++	jz 112f
++	ud2
++112:	add $4097,%rdi
++	bts $63,%rdi
++	SET_RDI_INTO_CR3
++	mov $__KERNEL_DS,%edi
++	mov %edi,%ss
++111:
++#endif
++
++#ifdef CONFIG_PARAVIRT
++	PV_RESTORE_REGS(CLBR_RDI);
++#endif
++
++	popq %rdi
++	pax_force_retaddr
++	retq
++
++#ifdef CONFIG_PAX_KERNEXEC
++2:	GET_CR0_INTO_RDI
++	btr $16,%rdi
++	jnc 4f
++	ljmpq __KERNEL_CS,3f
++3:	SET_RDI_INTO_CR0
++	jmp 1b
++4:	ud2
++	jmp 4b
++#endif
++ENDPROC(pax_exit_kernel)
++#endif
++
++	.macro pax_enter_kernel_user
++	pax_set_fptr_mask
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	call pax_enter_kernel_user
++#endif
++	.endm
++
++	.macro pax_exit_kernel_user
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	call pax_exit_kernel_user
++#endif
++#ifdef CONFIG_PAX_RANDKSTACK
++	pushq %rax
++	pushq %r11
++	call pax_randomize_kstack
++	popq %r11
++	popq %rax
++#endif
++	.endm
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++ENTRY(pax_enter_kernel_user)
++	pushq %rdi
++	pushq %rbx
++
++#ifdef CONFIG_PARAVIRT
++	PV_SAVE_REGS(CLBR_RDI)
++#endif
++
++	661: jmp 111f
++	.pushsection .altinstr_replacement, "a"
++	662: ASM_NOP2
++	.popsection
++	.pushsection .altinstructions, "a"
++	altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
++	.popsection
++	GET_CR3_INTO_RDI
++	cmp $1,%dil
++	jnz 4f
++	sub $4097,%rdi
++	bts $63,%rdi
++	SET_RDI_INTO_CR3
++	jmp 3f
++111:
++
++	GET_CR3_INTO_RDI
++	mov %rdi,%rbx
++	add $__START_KERNEL_map,%rbx
++	sub phys_base(%rip),%rbx
++
++#ifdef CONFIG_PARAVIRT
++	cmpl $0, pv_info+PARAVIRT_enabled
++	jz 1f
++	pushq %rdi
++	i = 0
++	.rept USER_PGD_PTRS
++	mov i*8(%rbx),%rsi
++	mov $0,%sil
++	lea i*8(%rbx),%rdi
++	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
++	i = i + 1
++	.endr
++	popq %rdi
++	jmp 2f
++1:
++#endif
++
++	i = 0
++	.rept USER_PGD_PTRS
++	movb $0,i*8(%rbx)
++	i = i + 1
++	.endr
++
++2:	SET_RDI_INTO_CR3
++
++#ifdef CONFIG_PAX_KERNEXEC
++	GET_CR0_INTO_RDI
++	bts $16,%rdi
++	SET_RDI_INTO_CR0
++#endif
++
++3:
++
++#ifdef CONFIG_PARAVIRT
++	PV_RESTORE_REGS(CLBR_RDI)
++#endif
++
++	popq %rbx
++	popq %rdi
++	pax_force_retaddr
++	retq
++4:	ud2
++ENDPROC(pax_enter_kernel_user)
++
++ENTRY(pax_exit_kernel_user)
++	pushq %rdi
++	pushq %rbx
++
++#ifdef CONFIG_PARAVIRT
++	PV_SAVE_REGS(CLBR_RDI)
++#endif
++
++	GET_CR3_INTO_RDI
++	661: jmp 1f
++	.pushsection .altinstr_replacement, "a"
++	662: ASM_NOP2
++	.popsection
++	.pushsection .altinstructions, "a"
++	altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
++	.popsection
++	cmp $0,%dil
++	jnz 3f
++	add $4097,%rdi
++	bts $63,%rdi
++	SET_RDI_INTO_CR3
++	jmp 2f
++1:
++
++	mov %rdi,%rbx
++
++#ifdef CONFIG_PAX_KERNEXEC
++	GET_CR0_INTO_RDI
++	btr $16,%rdi
++	jnc 3f
++	SET_RDI_INTO_CR0
++#endif
++
++	add $__START_KERNEL_map,%rbx
++	sub phys_base(%rip),%rbx
++
++#ifdef CONFIG_PARAVIRT
++	cmpl $0, pv_info+PARAVIRT_enabled
++	jz 1f
++	i = 0
++	.rept USER_PGD_PTRS
++	mov i*8(%rbx),%rsi
++	mov $0x67,%sil
++	lea i*8(%rbx),%rdi
++	call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched)
++	i = i + 1
++	.endr
++	jmp 2f
++1:
++#endif
++
++	i = 0
++	.rept USER_PGD_PTRS
++	movb $0x67,i*8(%rbx)
++	i = i + 1
++	.endr
++2:
++
++#ifdef CONFIG_PARAVIRT
++	PV_RESTORE_REGS(CLBR_RDI)
++#endif
++
++	popq %rbx
++	popq %rdi
++	pax_force_retaddr
++	retq
++3:	ud2
++ENDPROC(pax_exit_kernel_user)
++#endif
++
++	.macro pax_enter_kernel_nmi
++	pax_set_fptr_mask
++
++#ifdef CONFIG_PAX_KERNEXEC
++	GET_CR0_INTO_RDI
++	bts $16,%rdi
++	jc 110f
++	SET_RDI_INTO_CR0
++	or $2,%ebx
++110:
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	661: jmp 111f
++	.pushsection .altinstr_replacement, "a"
++	662: ASM_NOP2
++	.popsection
++	.pushsection .altinstructions, "a"
++	altinstruction_entry 661b, 662b, X86_FEATURE_PCID, 2, 2
++	.popsection
++	GET_CR3_INTO_RDI
++	cmp $0,%dil
++	jz 111f
++	sub $4097,%rdi
++	or $4,%ebx
++	bts $63,%rdi
++	SET_RDI_INTO_CR3
++	mov $__UDEREF_KERNEL_DS,%edi
++	mov %edi,%ss
++111:
++#endif
++	.endm
++
++	.macro pax_exit_kernel_nmi
++#ifdef CONFIG_PAX_KERNEXEC
++	btr $1,%ebx
++	jnc 110f
++	GET_CR0_INTO_RDI
++	btr $16,%rdi
++	SET_RDI_INTO_CR0
++110:
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	btr $2,%ebx
++	jnc 111f
++	GET_CR3_INTO_RDI
++	add $4097,%rdi
++	bts $63,%rdi
++	SET_RDI_INTO_CR3
++	mov $__KERNEL_DS,%edi
++	mov %edi,%ss
++111:
++#endif
++	.endm
++
++	.macro pax_erase_kstack
++#ifdef CONFIG_PAX_MEMORY_STACKLEAK
++	call pax_erase_kstack
++#endif
++	.endm
++
++#ifdef CONFIG_PAX_MEMORY_STACKLEAK
++ENTRY(pax_erase_kstack)
++	pushq %rdi
++	pushq %rcx
++	pushq %rax
++	pushq %r11
++
++	GET_THREAD_INFO(%r11)
++	mov TI_lowest_stack(%r11), %rdi
++	mov $-0xBEEF, %rax
++	std
++
++1:	mov %edi, %ecx
++	and $THREAD_SIZE_asm - 1, %ecx
++	shr $3, %ecx
++	repne scasq
++	jecxz 2f
++
++	cmp $2*8, %ecx
++	jc 2f
++
++	mov $2*8, %ecx
++	repe scasq
++	jecxz 2f
++	jne 1b
++
++2:	cld
++	or $2*8, %rdi
++	mov %esp, %ecx
++	sub %edi, %ecx
++
++	cmp $THREAD_SIZE_asm, %rcx
++	jb 3f
++	ud2
++3:
++
++	shr $3, %ecx
++	rep stosq
++
++	mov TI_task_thread_sp0(%r11), %rdi
++	sub $256, %rdi
++	mov %rdi, TI_lowest_stack(%r11)
++
++	popq %r11
++	popq %rax
++	popq %rcx
++	popq %rdi
++	pax_force_retaddr
++	ret
++ENDPROC(pax_erase_kstack)
++#endif
+ 
+ .macro TRACE_IRQS_IRETQ offset=ARGOFFSET
+ #ifdef CONFIG_TRACE_IRQFLAGS
+@@ -321,7 +755,7 @@ ENDPROC(native_usergs_sysret64)
+ .endm
+ 
+ .macro TRACE_IRQS_IRETQ_DEBUG offset=ARGOFFSET
+-	bt   $9,EFLAGS-\offset(%rsp)	/* interrupts off? */
++	bt   $X86_EFLAGS_IF_BIT,EFLAGS-\offset(%rsp)	/* interrupts off? */
+ 	jnc  1f
+ 	TRACE_IRQS_ON_DEBUG
+ 1:
+@@ -359,27 +793,6 @@ ENDPROC(native_usergs_sysret64)
+ 	movq \tmp,R11+\offset(%rsp)
+ 	.endm
+ 
+-	.macro FAKE_STACK_FRAME child_rip
+-	/* push in order ss, rsp, eflags, cs, rip */
+-	xorl %eax, %eax
+-	pushq_cfi $__KERNEL_DS /* ss */
+-	/*CFI_REL_OFFSET	ss,0*/
+-	pushq_cfi %rax /* rsp */
+-	CFI_REL_OFFSET	rsp,0
+-	pushq_cfi $(X86_EFLAGS_IF|X86_EFLAGS_FIXED) /* eflags - interrupts on */
+-	/*CFI_REL_OFFSET	rflags,0*/
+-	pushq_cfi $__KERNEL_CS /* cs */
+-	/*CFI_REL_OFFSET	cs,0*/
+-	pushq_cfi \child_rip /* rip */
+-	CFI_REL_OFFSET	rip,0
+-	pushq_cfi %rax /* orig rax */
+-	.endm
+-
+-	.macro UNFAKE_STACK_FRAME
+-	addq $8*6, %rsp
+-	CFI_ADJUST_CFA_OFFSET	-(6*8)
+-	.endm
+-
+ /*
+  * initial frame state for interrupts (and exceptions without error code)
+  */
+@@ -446,25 +859,26 @@ ENDPROC(native_usergs_sysret64)
+ /* save partial stack frame */
+ 	.macro SAVE_ARGS_IRQ
+ 	cld
+-	/* start from rbp in pt_regs and jump over */
+-	movq_cfi rdi, (RDI-RBP)
+-	movq_cfi rsi, (RSI-RBP)
+-	movq_cfi rdx, (RDX-RBP)
+-	movq_cfi rcx, (RCX-RBP)
+-	movq_cfi rax, (RAX-RBP)
+-	movq_cfi  r8,  (R8-RBP)
+-	movq_cfi  r9,  (R9-RBP)
+-	movq_cfi r10, (R10-RBP)
+-	movq_cfi r11, (R11-RBP)
++	/* start from r15 in pt_regs and jump over */
++	movq_cfi rdi, RDI
++	movq_cfi rsi, RSI
++	movq_cfi rdx, RDX
++	movq_cfi rcx, RCX
++	movq_cfi rax, RAX
++	movq_cfi  r8,  R8
++	movq_cfi  r9,  R9
++	movq_cfi r10, R10
++	movq_cfi r11, R11
++	movq_cfi r12, R12
+ 
+ 	/* Save rbp so that we can unwind from get_irq_regs() */
+-	movq_cfi rbp, 0
++	movq_cfi rbp, RBP
+ 
+ 	/* Save previous stack value */
+ 	movq %rsp, %rsi
+ 
+-	leaq -RBP(%rsp),%rdi	/* arg1 for handler */
+-	testl $3, CS-RBP(%rsi)
++	movq %rsp,%rdi	/* arg1 for handler */
++	testb $3, CS(%rsi)
+ 	je 1f
+ 	SWAPGS
+ 	/*
+@@ -484,6 +898,18 @@ ENDPROC(native_usergs_sysret64)
+ 			0x06 /* DW_OP_deref */, \
+ 			0x08 /* DW_OP_const1u */, SS+8-RBP, \
+ 			0x22 /* DW_OP_plus */
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	testb $3, CS(%rdi)
++	jnz 1f
++	pax_enter_kernel
++	jmp 2f
++1:	pax_enter_kernel_user
++2:
++#else
++	pax_enter_kernel
++#endif
++
+ 	/* We entered an interrupt context - irqs are off: */
+ 	TRACE_IRQS_OFF
+ 	.endm
+@@ -515,9 +941,52 @@ ENTRY(save_paranoid)
+ 	js 1f	/* negative -> in kernel */
+ 	SWAPGS
+ 	xorl %ebx,%ebx
+-1:	ret
++1:
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	testb $3, CS+8(%rsp)
++	jnz 1f
++	pax_enter_kernel
++	jmp 2f
++1:	pax_enter_kernel_user
++2:
++#else
++	pax_enter_kernel
++#endif
++	pax_force_retaddr
++	ret
+ 	CFI_ENDPROC
+-END(save_paranoid)
++ENDPROC(save_paranoid)
++
++ENTRY(save_paranoid_nmi)
++	XCPT_FRAME 1 RDI+8
++	cld
++	movq_cfi rdi, RDI+8
++	movq_cfi rsi, RSI+8
++	movq_cfi rdx, RDX+8
++	movq_cfi rcx, RCX+8
++	movq_cfi rax, RAX+8
++	movq_cfi r8, R8+8
++	movq_cfi r9, R9+8
++	movq_cfi r10, R10+8
++	movq_cfi r11, R11+8
++	movq_cfi rbx, RBX+8
++	movq_cfi rbp, RBP+8
++	movq_cfi r12, R12+8
++	movq_cfi r13, R13+8
++	movq_cfi r14, R14+8
++	movq_cfi r15, R15+8
++	movl $1,%ebx
++	movl $MSR_GS_BASE,%ecx
++	rdmsr
++	testl %edx,%edx
++	js 1f	/* negative -> in kernel */
++	SWAPGS
++	xorl %ebx,%ebx
++1:	pax_enter_kernel_nmi
++	pax_force_retaddr
++	ret
++	CFI_ENDPROC
++ENDPROC(save_paranoid_nmi)
+ 	.popsection
+ 
+ /*
+@@ -539,7 +1008,7 @@ ENTRY(ret_from_fork)
+ 
+ 	RESTORE_REST
+ 
+-	testl $3, CS-ARGOFFSET(%rsp)		# from kernel_thread?
++	testb $3, CS-ARGOFFSET(%rsp)		# from kernel_thread?
+ 	jz   1f
+ 
+ 	/*
+@@ -552,15 +1021,13 @@ ENTRY(ret_from_fork)
+ 	jmp  int_ret_from_sys_call
+ 
+ 1:
+-	subq $REST_SKIP, %rsp	# leave space for volatiles
+-	CFI_ADJUST_CFA_OFFSET	REST_SKIP
+ 	movq %rbp, %rdi
+ 	call *%rbx
+ 	movl $0, RAX(%rsp)
+ 	RESTORE_REST
+ 	jmp int_ret_from_sys_call
+ 	CFI_ENDPROC
+-END(ret_from_fork)
++ENDPROC(ret_from_fork)
+ 
+ /*
+  * System call entry. Up to 6 arguments in registers are supported.
+@@ -597,7 +1064,7 @@ END(ret_from_fork)
+ ENTRY(system_call)
+ 	CFI_STARTPROC	simple
+ 	CFI_SIGNAL_FRAME
+-	CFI_DEF_CFA	rsp,KERNEL_STACK_OFFSET
++	CFI_DEF_CFA	rsp,0
+ 	CFI_REGISTER	rip,rcx
+ 	/*CFI_REGISTER	rflags,r11*/
+ 	SWAPGS_UNSAFE_STACK
+@@ -610,16 +1077,23 @@ GLOBAL(system_call_after_swapgs)
+ 
+ 	movq	%rsp,PER_CPU_VAR(old_rsp)
+ 	movq	PER_CPU_VAR(kernel_stack),%rsp
++	SAVE_ARGS 8*6,0
++	pax_enter_kernel_user
++
++#ifdef CONFIG_PAX_RANDKSTACK
++	pax_erase_kstack
++#endif
++
+ 	/*
+ 	 * No need to follow this irqs off/on section - it's straight
+ 	 * and short:
+ 	 */
+ 	ENABLE_INTERRUPTS(CLBR_NONE)
+-	SAVE_ARGS 8,0
+ 	movq  %rax,ORIG_RAX-ARGOFFSET(%rsp)
+ 	movq  %rcx,RIP-ARGOFFSET(%rsp)
+ 	CFI_REL_OFFSET rip,RIP-ARGOFFSET
+-	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	GET_THREAD_INFO(%rcx)
++	testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%rcx)
+ 	jnz tracesys
+ system_call_fastpath:
+ #if __SYSCALL_MASK == ~0
+@@ -643,10 +1117,13 @@ sysret_check:
+ 	LOCKDEP_SYS_EXIT
+ 	DISABLE_INTERRUPTS(CLBR_NONE)
+ 	TRACE_IRQS_OFF
+-	movl TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET),%edx
++	GET_THREAD_INFO(%rcx)
++	movl TI_flags(%rcx),%edx
+ 	andl %edi,%edx
+ 	jnz  sysret_careful
+ 	CFI_REMEMBER_STATE
++	pax_exit_kernel_user
++	pax_erase_kstack
+ 	/*
+ 	 * sysretq will re-enable interrupts:
+ 	 */
+@@ -705,6 +1182,9 @@ auditsys:
+ 	movq %rax,%rsi			/* 2nd arg: syscall number */
+ 	movl $AUDIT_ARCH_X86_64,%edi	/* 1st arg: audit arch */
+ 	call __audit_syscall_entry
++
++	pax_erase_kstack
++
+ 	LOAD_ARGS 0		/* reload call-clobbered registers */
+ 	jmp system_call_fastpath
+ 
+@@ -726,7 +1206,7 @@ sysret_audit:
+ 	/* Do syscall tracing */
+ tracesys:
+ #ifdef CONFIG_AUDITSYSCALL
+-	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
++	testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
+ 	jz auditsys
+ #endif
+ 	SAVE_REST
+@@ -734,12 +1214,15 @@ tracesys:
+ 	FIXUP_TOP_OF_STACK %rdi
+ 	movq %rsp,%rdi
+ 	call syscall_trace_enter
++
++	pax_erase_kstack
++
+ 	/*
+ 	 * Reload arg registers from stack in case ptrace changed them.
+ 	 * We don't reload %rax because syscall_trace_enter() returned
+ 	 * the value it wants us to use in the table lookup.
+ 	 */
+-	LOAD_ARGS ARGOFFSET, 1
++	LOAD_ARGS 1
+ 	RESTORE_REST
+ #if __SYSCALL_MASK == ~0
+ 	cmpq $__NR_syscall_max,%rax
+@@ -769,7 +1252,9 @@ GLOBAL(int_with_check)
+ 	andl %edi,%edx
+ 	jnz   int_careful
+ 	andl    $~TS_COMPAT,TI_status(%rcx)
+-	jmp   retint_swapgs
++	pax_exit_kernel_user
++	pax_erase_kstack
++	jmp   retint_swapgs_pax
+ 
+ 	/* Either reschedule or signal or syscall exit tracking needed. */
+ 	/* First do a reschedule test. */
+@@ -815,7 +1300,7 @@ int_restore_rest:
+ 	TRACE_IRQS_OFF
+ 	jmp int_with_check
+ 	CFI_ENDPROC
+-END(system_call)
++ENDPROC(system_call)
+ 
+ 	.macro FORK_LIKE func
+ ENTRY(stub_\func)
+@@ -828,9 +1313,10 @@ ENTRY(stub_\func)
+ 	DEFAULT_FRAME 0 8		/* offset 8: return address */
+ 	call sys_\func
+ 	RESTORE_TOP_OF_STACK %r11, 8
+-	ret $REST_SKIP		/* pop extended registers */
++	pax_force_retaddr
++	ret
+ 	CFI_ENDPROC
+-END(stub_\func)
++ENDPROC(stub_\func)
+ 	.endm
+ 
+ 	.macro FIXED_FRAME label,func
+@@ -840,9 +1326,10 @@ ENTRY(\label)
+ 	FIXUP_TOP_OF_STACK %r11, 8-ARGOFFSET
+ 	call \func
+ 	RESTORE_TOP_OF_STACK %r11, 8-ARGOFFSET
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+-END(\label)
++ENDPROC(\label)
+ 	.endm
+ 
+ 	FORK_LIKE  clone
+@@ -850,19 +1337,6 @@ END(\label)
+ 	FORK_LIKE  vfork
+ 	FIXED_FRAME stub_iopl, sys_iopl
+ 
+-ENTRY(ptregscall_common)
+-	DEFAULT_FRAME 1 8	/* offset 8: return address */
+-	RESTORE_TOP_OF_STACK %r11, 8
+-	movq_cfi_restore R15+8, r15
+-	movq_cfi_restore R14+8, r14
+-	movq_cfi_restore R13+8, r13
+-	movq_cfi_restore R12+8, r12
+-	movq_cfi_restore RBP+8, rbp
+-	movq_cfi_restore RBX+8, rbx
+-	ret $REST_SKIP		/* pop extended registers */
+-	CFI_ENDPROC
+-END(ptregscall_common)
+-
+ ENTRY(stub_execve)
+ 	CFI_STARTPROC
+ 	addq $8, %rsp
+@@ -874,7 +1348,7 @@ ENTRY(stub_execve)
+ 	RESTORE_REST
+ 	jmp int_ret_from_sys_call
+ 	CFI_ENDPROC
+-END(stub_execve)
++ENDPROC(stub_execve)
+ 
+ /*
+  * sigreturn is special because it needs to restore all registers on return.
+@@ -891,7 +1365,7 @@ ENTRY(stub_rt_sigreturn)
+ 	RESTORE_REST
+ 	jmp int_ret_from_sys_call
+ 	CFI_ENDPROC
+-END(stub_rt_sigreturn)
++ENDPROC(stub_rt_sigreturn)
+ 
+ #ifdef CONFIG_X86_X32_ABI
+ ENTRY(stub_x32_rt_sigreturn)
+@@ -905,7 +1379,7 @@ ENTRY(stub_x32_rt_sigreturn)
+ 	RESTORE_REST
+ 	jmp int_ret_from_sys_call
+ 	CFI_ENDPROC
+-END(stub_x32_rt_sigreturn)
++ENDPROC(stub_x32_rt_sigreturn)
+ 
+ ENTRY(stub_x32_execve)
+ 	CFI_STARTPROC
+@@ -919,7 +1393,7 @@ ENTRY(stub_x32_execve)
+ 	RESTORE_REST
+ 	jmp int_ret_from_sys_call
+ 	CFI_ENDPROC
+-END(stub_x32_execve)
++ENDPROC(stub_x32_execve)
+ 
+ #endif
+ 
+@@ -956,7 +1430,7 @@ vector=vector+1
+ 2:	jmp common_interrupt
+ .endr
+ 	CFI_ENDPROC
+-END(irq_entries_start)
++ENDPROC(irq_entries_start)
+ 
+ .previous
+ END(interrupt)
+@@ -973,8 +1447,8 @@ END(interrupt)
+ /* 0(%rsp): ~(interrupt number) */
+ 	.macro interrupt func
+ 	/* reserve pt_regs for scratch regs and rbp */
+-	subq $ORIG_RAX-RBP, %rsp
+-	CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP
++	subq $ORIG_RAX, %rsp
++	CFI_ADJUST_CFA_OFFSET ORIG_RAX
+ 	SAVE_ARGS_IRQ
+ 	call \func
+ 	.endm
+@@ -1001,14 +1475,14 @@ ret_from_intr:
+ 
+ 	/* Restore saved previous stack */
+ 	popq %rsi
+-	CFI_DEF_CFA rsi,SS+8-RBP	/* reg/off reset after def_cfa_expr */
+-	leaq ARGOFFSET-RBP(%rsi), %rsp
++	CFI_DEF_CFA rsi,SS+8	/* reg/off reset after def_cfa_expr */
++	movq %rsi, %rsp
+ 	CFI_DEF_CFA_REGISTER	rsp
+-	CFI_ADJUST_CFA_OFFSET	RBP-ARGOFFSET
++	CFI_ADJUST_CFA_OFFSET	-ARGOFFSET
+ 
+ exit_intr:
+ 	GET_THREAD_INFO(%rcx)
+-	testl $3,CS-ARGOFFSET(%rsp)
++	testb $3,CS-ARGOFFSET(%rsp)
+ 	je retint_kernel
+ 
+ 	/* Interrupt came from user space */
+@@ -1030,12 +1504,35 @@ retint_swapgs:		/* return to user-space */
+ 	 * The iretq could re-enable interrupts:
+ 	 */
+ 	DISABLE_INTERRUPTS(CLBR_ANY)
++	pax_exit_kernel_user
++retint_swapgs_pax:
+ 	TRACE_IRQS_IRETQ
+ 	SWAPGS
+ 	jmp restore_args
+ 
+ retint_restore_args:	/* return to kernel space */
+ 	DISABLE_INTERRUPTS(CLBR_ANY)
++	pax_exit_kernel
++
++#if defined(CONFIG_EFI) && defined(CONFIG_PAX_KERNEXEC)
++	/* This is a quirk to allow IRQs/NMIs/MCEs during early EFI setup,
++	 * namely calling EFI runtime services with a phys mapping. We're
++	 * starting off with NOPs and patch in the real instrumentation
++	 * (BTS/OR) before starting any userland process; even before starting
++	 * up the APs.
++	 */
++	.pushsection .altinstr_replacement, "a"
++	601: pax_force_retaddr (RIP-ARGOFFSET)
++	602:
++	.popsection
++	603: .fill 602b-601b, 1, 0x90
++	.pushsection .altinstructions, "a"
++	altinstruction_entry 603b, 601b, X86_FEATURE_ALWAYS, 602b-601b, 602b-601b
++	.popsection
++#else
++	pax_force_retaddr (RIP-ARGOFFSET)
++#endif
++
+ 	/*
+ 	 * The iretq could re-enable interrupts:
+ 	 */
+@@ -1073,15 +1570,15 @@ native_irq_return_ldt:
+ 	SWAPGS
+ 	movq PER_CPU_VAR(espfix_waddr),%rdi
+ 	movq %rax,(0*8)(%rdi)	/* RAX */
+-	movq (2*8)(%rsp),%rax	/* RIP */
++	movq (2*8 + RIP-RIP)(%rsp),%rax	/* RIP */
+ 	movq %rax,(1*8)(%rdi)
+-	movq (3*8)(%rsp),%rax	/* CS */
++	movq (2*8 + CS-RIP)(%rsp),%rax	/* CS */
+ 	movq %rax,(2*8)(%rdi)
+-	movq (4*8)(%rsp),%rax	/* RFLAGS */
++	movq (2*8 + EFLAGS-RIP)(%rsp),%rax	/* RFLAGS */
+ 	movq %rax,(3*8)(%rdi)
+-	movq (6*8)(%rsp),%rax	/* SS */
++	movq (2*8 + SS-RIP)(%rsp),%rax	/* SS */
+ 	movq %rax,(5*8)(%rdi)
+-	movq (5*8)(%rsp),%rax	/* RSP */
++	movq (2*8 + RSP-RIP)(%rsp),%rax	/* RSP */
+ 	movq %rax,(4*8)(%rdi)
+ 	andl $0xffff0000,%eax
+ 	popq_cfi %rdi
+@@ -1135,7 +1632,7 @@ ENTRY(retint_kernel)
+ 	jmp exit_intr
+ #endif
+ 	CFI_ENDPROC
+-END(common_interrupt)
++ENDPROC(common_interrupt)
+ 
+ /*
+  * End of kprobes section
+@@ -1154,7 +1651,7 @@ ENTRY(\sym)
+ 	interrupt \do_sym
+ 	jmp ret_from_intr
+ 	CFI_ENDPROC
+-END(\sym)
++ENDPROC(\sym)
+ .endm
+ 
+ #ifdef CONFIG_TRACING
+@@ -1242,7 +1739,7 @@ ENTRY(\sym)
+ 	call \do_sym
+ 	jmp error_exit		/* %ebx: no swapgs flag */
+ 	CFI_ENDPROC
+-END(\sym)
++ENDPROC(\sym)
+ .endm
+ 
+ .macro paranoidzeroentry sym do_sym
+@@ -1260,10 +1757,10 @@ ENTRY(\sym)
+ 	call \do_sym
+ 	jmp paranoid_exit	/* %ebx: no swapgs flag */
+ 	CFI_ENDPROC
+-END(\sym)
++ENDPROC(\sym)
+ .endm
+ 
+-#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8)
++#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r13)
+ .macro paranoidzeroentry_ist sym do_sym ist
+ ENTRY(\sym)
+ 	INTR_FRAME
+@@ -1276,12 +1773,18 @@ ENTRY(\sym)
+ 	TRACE_IRQS_OFF_DEBUG
+ 	movq %rsp,%rdi		/* pt_regs pointer */
+ 	xorl %esi,%esi		/* no error code */
++#ifdef CONFIG_SMP
++	imul $TSS_size, PER_CPU_VAR(cpu_number), %r13d
++	lea init_tss(%r13), %r13
++#else
++	lea init_tss(%rip), %r13
++#endif
+ 	subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
+ 	call \do_sym
+ 	addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist)
+ 	jmp paranoid_exit	/* %ebx: no swapgs flag */
+ 	CFI_ENDPROC
+-END(\sym)
++ENDPROC(\sym)
+ .endm
+ 
+ .macro errorentry sym do_sym
+@@ -1299,7 +1802,7 @@ ENTRY(\sym)
+ 	call \do_sym
+ 	jmp error_exit			/* %ebx: no swapgs flag */
+ 	CFI_ENDPROC
+-END(\sym)
++ENDPROC(\sym)
+ .endm
+ 
+ #ifdef CONFIG_TRACING
+@@ -1330,7 +1833,7 @@ ENTRY(\sym)
+ 	call \do_sym
+ 	jmp paranoid_exit		/* %ebx: no swapgs flag */
+ 	CFI_ENDPROC
+-END(\sym)
++ENDPROC(\sym)
+ .endm
+ 
+ zeroentry divide_error do_divide_error
+@@ -1360,9 +1863,10 @@ gs_change:
+ 2:	mfence		/* workaround */
+ 	SWAPGS
+ 	popfq_cfi
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+-END(native_load_gs_index)
++ENDPROC(native_load_gs_index)
+ 
+ 	_ASM_EXTABLE(gs_change,bad_gs)
+ 	.section .fixup,"ax"
+@@ -1390,9 +1894,10 @@ ENTRY(do_softirq_own_stack)
+ 	CFI_DEF_CFA_REGISTER	rsp
+ 	CFI_ADJUST_CFA_OFFSET   -8
+ 	decl PER_CPU_VAR(irq_count)
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+-END(do_softirq_own_stack)
++ENDPROC(do_softirq_own_stack)
+ 
+ #ifdef CONFIG_XEN
+ zeroentry xen_hypervisor_callback xen_do_hypervisor_callback
+@@ -1430,7 +1935,7 @@ ENTRY(xen_do_hypervisor_callback)   # do_hypervisor_callback(struct *pt_regs)
+ 	decl PER_CPU_VAR(irq_count)
+ 	jmp  error_exit
+ 	CFI_ENDPROC
+-END(xen_do_hypervisor_callback)
++ENDPROC(xen_do_hypervisor_callback)
+ 
+ /*
+  * Hypervisor uses this for application faults while it executes.
+@@ -1489,7 +1994,7 @@ ENTRY(xen_failsafe_callback)
+ 	SAVE_ALL
+ 	jmp error_exit
+ 	CFI_ENDPROC
+-END(xen_failsafe_callback)
++ENDPROC(xen_failsafe_callback)
+ 
+ apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
+ 	xen_hvm_callback_vector xen_evtchn_do_upcall
+@@ -1541,18 +2046,33 @@ ENTRY(paranoid_exit)
+ 	DEFAULT_FRAME
+ 	DISABLE_INTERRUPTS(CLBR_NONE)
+ 	TRACE_IRQS_OFF_DEBUG
+-	testl %ebx,%ebx				/* swapgs needed? */
++	testl $1,%ebx				/* swapgs needed? */
+ 	jnz paranoid_restore
+-	testl $3,CS(%rsp)
++	testb $3,CS(%rsp)
+ 	jnz   paranoid_userspace
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pax_exit_kernel
++	TRACE_IRQS_IRETQ 0
++	SWAPGS_UNSAFE_STACK
++	RESTORE_ALL 8
++	pax_force_retaddr_bts
++	jmp irq_return
++#endif
+ paranoid_swapgs:
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pax_exit_kernel_user
++#else
++	pax_exit_kernel
++#endif
+ 	TRACE_IRQS_IRETQ 0
+ 	SWAPGS_UNSAFE_STACK
+ 	RESTORE_ALL 8
+ 	jmp irq_return
+ paranoid_restore:
++	pax_exit_kernel
+ 	TRACE_IRQS_IRETQ_DEBUG 0
+ 	RESTORE_ALL 8
++	pax_force_retaddr_bts
+ 	jmp irq_return
+ paranoid_userspace:
+ 	GET_THREAD_INFO(%rcx)
+@@ -1581,7 +2101,7 @@ paranoid_schedule:
+ 	TRACE_IRQS_OFF
+ 	jmp paranoid_userspace
+ 	CFI_ENDPROC
+-END(paranoid_exit)
++ENDPROC(paranoid_exit)
+ 
+ /*
+  * Exception entry point. This expects an error code/orig_rax on the stack.
+@@ -1608,12 +2128,23 @@ ENTRY(error_entry)
+ 	movq_cfi r14, R14+8
+ 	movq_cfi r15, R15+8
+ 	xorl %ebx,%ebx
+-	testl $3,CS+8(%rsp)
++	testb $3,CS+8(%rsp)
+ 	je error_kernelspace
+ error_swapgs:
+ 	SWAPGS
+ error_sti:
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	testb $3, CS+8(%rsp)
++	jnz 1f
++	pax_enter_kernel
++	jmp 2f
++1:	pax_enter_kernel_user
++2:
++#else
++	pax_enter_kernel
++#endif
+ 	TRACE_IRQS_OFF
++	pax_force_retaddr
+ 	ret
+ 
+ /*
+@@ -1647,7 +2178,7 @@ error_bad_iret:
+ 	decl %ebx	/* Return to usergs */
+ 	jmp error_sti
+ 	CFI_ENDPROC
+-END(error_entry)
++ENDPROC(error_entry)
+ 
+ 
+ /* ebx:	no swapgs flag (1: don't need swapgs, 0: need it) */
+@@ -1658,7 +2189,7 @@ ENTRY(error_exit)
+ 	DISABLE_INTERRUPTS(CLBR_NONE)
+ 	TRACE_IRQS_OFF
+ 	GET_THREAD_INFO(%rcx)
+-	testl %eax,%eax
++	testl $1,%eax
+ 	jne retint_kernel
+ 	LOCKDEP_SYS_EXIT_IRQ
+ 	movl TI_flags(%rcx),%edx
+@@ -1667,7 +2198,7 @@ ENTRY(error_exit)
+ 	jnz retint_careful
+ 	jmp retint_swapgs
+ 	CFI_ENDPROC
+-END(error_exit)
++ENDPROC(error_exit)
+ 
+ /*
+  * Test if a given stack is an NMI stack or not.
+@@ -1725,9 +2256,11 @@ ENTRY(nmi)
+ 	 * If %cs was not the kernel segment, then the NMI triggered in user
+ 	 * space, which means it is definitely not nested.
+ 	 */
++	cmpl $__KERNEXEC_KERNEL_CS, 16(%rsp)
++	je 1f
+ 	cmpl $__KERNEL_CS, 16(%rsp)
+ 	jne first_nmi
+-
++1:
+ 	/*
+ 	 * Check the special variable on the stack to see if NMIs are
+ 	 * executing.
+@@ -1761,8 +2294,7 @@ nested_nmi:
+ 
+ 1:
+ 	/* Set up the interrupted NMIs stack to jump to repeat_nmi */
+-	leaq -1*8(%rsp), %rdx
+-	movq %rdx, %rsp
++	subq $8, %rsp
+ 	CFI_ADJUST_CFA_OFFSET 1*8
+ 	leaq -10*8(%rsp), %rdx
+ 	pushq_cfi $__KERNEL_DS
+@@ -1780,6 +2312,7 @@ nested_nmi_out:
+ 	CFI_RESTORE rdx
+ 
+ 	/* No need to check faults here */
++#	pax_force_retaddr_bts
+ 	INTERRUPT_RETURN
+ 
+ 	CFI_RESTORE_STATE
+@@ -1876,13 +2409,13 @@ end_repeat_nmi:
+ 	subq $ORIG_RAX-R15, %rsp
+ 	CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15
+ 	/*
+-	 * Use save_paranoid to handle SWAPGS, but no need to use paranoid_exit
++	 * Use save_paranoid_nmi to handle SWAPGS, but no need to use paranoid_exit
+ 	 * as we should not be calling schedule in NMI context.
+ 	 * Even with normal interrupts enabled. An NMI should not be
+ 	 * setting NEED_RESCHED or anything that normal interrupts and
+ 	 * exceptions might do.
+ 	 */
+-	call save_paranoid
++	call save_paranoid_nmi
+ 	DEFAULT_FRAME 0
+ 
+ 	/*
+@@ -1892,9 +2425,9 @@ end_repeat_nmi:
+ 	 * NMI itself takes a page fault, the page fault that was preempted
+ 	 * will read the information from the NMI page fault and not the
+ 	 * origin fault. Save it off and restore it if it changes.
+-	 * Use the r12 callee-saved register.
++	 * Use the r13 callee-saved register.
+ 	 */
+-	movq %cr2, %r12
++	movq %cr2, %r13
+ 
+ 	/* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */
+ 	movq %rsp,%rdi
+@@ -1903,31 +2436,36 @@ end_repeat_nmi:
+ 
+ 	/* Did the NMI take a page fault? Restore cr2 if it did */
+ 	movq %cr2, %rcx
+-	cmpq %rcx, %r12
++	cmpq %rcx, %r13
+ 	je 1f
+-	movq %r12, %cr2
++	movq %r13, %cr2
+ 1:
+ 	
+-	testl %ebx,%ebx				/* swapgs needed? */
++	testl $1,%ebx				/* swapgs needed? */
+ 	jnz nmi_restore
+ nmi_swapgs:
+ 	SWAPGS_UNSAFE_STACK
+ nmi_restore:
++	pax_exit_kernel_nmi
+ 	/* Pop the extra iret frame at once */
+ 	RESTORE_ALL 6*8
++	testb $3, 8(%rsp)
++	jnz 1f
++	pax_force_retaddr_bts
++1:
+ 
+ 	/* Clear the NMI executing stack variable */
+ 	movq $0, 5*8(%rsp)
+ 	jmp irq_return
+ 	CFI_ENDPROC
+-END(nmi)
++ENDPROC(nmi)
+ 
+ ENTRY(ignore_sysret)
+ 	CFI_STARTPROC
+ 	mov $-ENOSYS,%eax
+ 	sysret
+ 	CFI_ENDPROC
+-END(ignore_sysret)
++ENDPROC(ignore_sysret)
+ 
+ /*
+  * End of kprobes section
+diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
+index 94d857f..5bce89c 100644
+--- a/arch/x86/kernel/espfix_64.c
++++ b/arch/x86/kernel/espfix_64.c
+@@ -70,8 +70,7 @@ static DEFINE_MUTEX(espfix_init_mutex);
+ #define ESPFIX_MAX_PAGES  DIV_ROUND_UP(CONFIG_NR_CPUS, ESPFIX_STACKS_PER_PAGE)
+ static void *espfix_pages[ESPFIX_MAX_PAGES];
+ 
+-static __page_aligned_bss pud_t espfix_pud_page[PTRS_PER_PUD]
+-	__aligned(PAGE_SIZE);
++static pud_t espfix_pud_page[PTRS_PER_PUD] __page_aligned_rodata;
+ 
+ static unsigned int page_random, slot_random;
+ 
+@@ -122,14 +121,17 @@ static void init_espfix_random(void)
+ void __init init_espfix_bsp(void)
+ {
+ 	pgd_t *pgd_p;
+-	pteval_t ptemask;
+-
+-	ptemask = __supported_pte_mask;
++	unsigned long index = pgd_index(ESPFIX_BASE_ADDR);
+ 
+ 	/* Install the espfix pud into the kernel page directory */
+-	pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];
++	pgd_p = &init_level4_pgt[index];
+ 	pgd_populate(&init_mm, pgd_p, (pud_t *)espfix_pud_page);
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	clone_pgd_range(get_cpu_pgd(0, kernel) + index, swapper_pg_dir + index, 1);
++	clone_pgd_range(get_cpu_pgd(0, user) + index, swapper_pg_dir + index, 1);
++#endif
++
+ 	/* Randomize the locations */
+ 	init_espfix_random();
+ 
+@@ -197,7 +199,7 @@ void init_espfix_ap(void)
+ 		set_pte(&pte_p[n*PTE_STRIDE], pte);
+ 
+ 	/* Job is done for this CPU and any CPU which shares this page */
+-	ACCESS_ONCE(espfix_pages[page]) = stack_page;
++	ACCESS_ONCE_RW(espfix_pages[page]) = stack_page;
+ 
+ unlock_done:
+ 	mutex_unlock(&espfix_init_mutex);
+diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
+index 1ffc32d..e52c745 100644
+--- a/arch/x86/kernel/ftrace.c
++++ b/arch/x86/kernel/ftrace.c
+@@ -104,6 +104,8 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
+ {
+ 	unsigned char replaced[MCOUNT_INSN_SIZE];
+ 
++	ip = ktla_ktva(ip);
++
+ 	/*
+ 	 * Note: Due to modules and __init, code can
+ 	 *  disappear and change, we need to protect against faulting
+@@ -229,7 +231,7 @@ static int update_ftrace_func(unsigned long ip, void *new)
+ 	unsigned char old[MCOUNT_INSN_SIZE];
+ 	int ret;
+ 
+-	memcpy(old, (void *)ip, MCOUNT_INSN_SIZE);
++	memcpy(old, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE);
+ 
+ 	ftrace_update_func = ip;
+ 	/* Make sure the breakpoints see the ftrace_update_func update */
+@@ -306,7 +308,7 @@ static int ftrace_write(unsigned long ip, const char *val, int size)
+ 	 * kernel identity mapping to modify code.
+ 	 */
+ 	if (within(ip, (unsigned long)_text, (unsigned long)_etext))
+-		ip = (unsigned long)__va(__pa_symbol(ip));
++		ip = (unsigned long)__va(__pa_symbol(ktla_ktva(ip)));
+ 
+ 	return probe_kernel_write((void *)ip, val, size);
+ }
+@@ -316,7 +318,7 @@ static int add_break(unsigned long ip, const char *old)
+ 	unsigned char replaced[MCOUNT_INSN_SIZE];
+ 	unsigned char brk = BREAKPOINT_INSTRUCTION;
+ 
+-	if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
++	if (probe_kernel_read(replaced, (void *)ktla_ktva(ip), MCOUNT_INSN_SIZE))
+ 		return -EFAULT;
+ 
+ 	/* Make sure it is what we expect it to be */
+@@ -664,7 +666,7 @@ ftrace_modify_code(unsigned long ip, unsigned const char *old_code,
+ 	return ret;
+ 
+  fail_update:
+-	probe_kernel_write((void *)ip, &old_code[0], 1);
++	probe_kernel_write((void *)ktla_ktva(ip), &old_code[0], 1);
+ 	goto out;
+ }
+ 
+diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
+index 5fc4ac7..90be4e1 100644
+--- a/arch/x86/kernel/head64.c
++++ b/arch/x86/kernel/head64.c
+@@ -67,12 +67,12 @@ again:
+ 	pgd = *pgd_p;
+ 
+ 	/*
+-	 * The use of __START_KERNEL_map rather than __PAGE_OFFSET here is
+-	 * critical -- __PAGE_OFFSET would point us back into the dynamic
++	 * The use of __early_va rather than __va here is critical:
++	 * __va would point us back into the dynamic
+ 	 * range and we might end up looping forever...
+ 	 */
+ 	if (pgd)
+-		pud_p = (pudval_t *)((pgd & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
++		pud_p = (pudval_t *)(__early_va(pgd & PTE_PFN_MASK));
+ 	else {
+ 		if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
+ 			reset_early_page_tables();
+@@ -82,13 +82,13 @@ again:
+ 		pud_p = (pudval_t *)early_dynamic_pgts[next_early_pgt++];
+ 		for (i = 0; i < PTRS_PER_PUD; i++)
+ 			pud_p[i] = 0;
+-		*pgd_p = (pgdval_t)pud_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
++		*pgd_p = (pgdval_t)__pa(pud_p) + _KERNPG_TABLE;
+ 	}
+ 	pud_p += pud_index(address);
+ 	pud = *pud_p;
+ 
+ 	if (pud)
+-		pmd_p = (pmdval_t *)((pud & PTE_PFN_MASK) + __START_KERNEL_map - phys_base);
++		pmd_p = (pmdval_t *)(__early_va(pud & PTE_PFN_MASK));
+ 	else {
+ 		if (next_early_pgt >= EARLY_DYNAMIC_PAGE_TABLES) {
+ 			reset_early_page_tables();
+@@ -98,7 +98,7 @@ again:
+ 		pmd_p = (pmdval_t *)early_dynamic_pgts[next_early_pgt++];
+ 		for (i = 0; i < PTRS_PER_PMD; i++)
+ 			pmd_p[i] = 0;
+-		*pud_p = (pudval_t)pmd_p - __START_KERNEL_map + phys_base + _KERNPG_TABLE;
++		*pud_p = (pudval_t)__pa(pmd_p) + _KERNPG_TABLE;
+ 	}
+ 	pmd = (physaddr & PMD_MASK) + early_pmd_flags;
+ 	pmd_p[pmd_index(address)] = pmd;
+@@ -175,7 +175,6 @@ asmlinkage void __init x86_64_start_kernel(char * real_mode_data)
+ 	if (console_loglevel == 10)
+ 		early_printk("Kernel alive\n");
+ 
+-	clear_page(init_level4_pgt);
+ 	/* set init_level4_pgt kernel high mapping*/
+ 	init_level4_pgt[511] = early_level4_pgt[511];
+ 
+diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
+index 30a2aa3..d62e1dd 100644
+--- a/arch/x86/kernel/head_32.S
++++ b/arch/x86/kernel/head_32.S
+@@ -26,6 +26,12 @@
+ /* Physical address */
+ #define pa(X) ((X) - __PAGE_OFFSET)
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++#define ta(X) (X)
++#else
++#define ta(X) ((X) - __PAGE_OFFSET)
++#endif
++
+ /*
+  * References to members of the new_cpu_data structure.
+  */
+@@ -55,11 +61,7 @@
+  * and small than max_low_pfn, otherwise will waste some page table entries
+  */
+ 
+-#if PTRS_PER_PMD > 1
+-#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
+-#else
+-#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
+-#endif
++#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE)
+ 
+ /* Number of possible pages in the lowmem region */
+ LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT)
+@@ -78,6 +80,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_PAGES) * PAGE_SIZE
+ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
+ 
+ /*
++ * Real beginning of normal "text" segment
++ */
++ENTRY(stext)
++ENTRY(_stext)
++
++/*
+  * 32-bit kernel entrypoint; only used by the boot CPU.  On entry,
+  * %esi points to the real-mode code as a 32-bit pointer.
+  * CS and DS must be 4 GB flat segments, but we don't depend on
+@@ -85,6 +93,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
+  * can.
+  */
+ __HEAD
++
++#ifdef CONFIG_PAX_KERNEXEC
++	jmp startup_32
++/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */
++.fill PAGE_SIZE-5,1,0xcc
++#endif
++
+ ENTRY(startup_32)
+ 	movl pa(stack_start),%ecx
+ 	
+@@ -106,6 +121,59 @@ ENTRY(startup_32)
+ 2:
+ 	leal -__PAGE_OFFSET(%ecx),%esp
+ 
++#ifdef CONFIG_SMP
++	movl $pa(cpu_gdt_table),%edi
++	movl $__per_cpu_load,%eax
++	movw %ax,GDT_ENTRY_PERCPU * 8 + 2(%edi)
++	rorl $16,%eax
++	movb %al,GDT_ENTRY_PERCPU * 8 + 4(%edi)
++	movb %ah,GDT_ENTRY_PERCPU * 8 + 7(%edi)
++	movl $__per_cpu_end - 1,%eax
++	subl $__per_cpu_start,%eax
++	movw %ax,GDT_ENTRY_PERCPU * 8 + 0(%edi)
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	movl $NR_CPUS,%ecx
++	movl $pa(cpu_gdt_table),%edi
++1:
++	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi)
++	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi)
++	movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi)
++	addl $PAGE_SIZE_asm,%edi
++	loop 1b
++#endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++	movl $pa(boot_gdt),%edi
++	movl $__LOAD_PHYSICAL_ADDR,%eax
++	movw %ax,GDT_ENTRY_BOOT_CS * 8 + 2(%edi)
++	rorl $16,%eax
++	movb %al,GDT_ENTRY_BOOT_CS * 8 + 4(%edi)
++	movb %ah,GDT_ENTRY_BOOT_CS * 8 + 7(%edi)
++	rorl $16,%eax
++
++	ljmp $(__BOOT_CS),$1f
++1:
++
++	movl $NR_CPUS,%ecx
++	movl $pa(cpu_gdt_table),%edi
++	addl $__PAGE_OFFSET,%eax
++1:
++	movb $0xc0,GDT_ENTRY_KERNEL_CS * 8 + 6(%edi)
++	movb $0xc0,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 6(%edi)
++	movw %ax,GDT_ENTRY_KERNEL_CS * 8 + 2(%edi)
++	movw %ax,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 2(%edi)
++	rorl $16,%eax
++	movb %al,GDT_ENTRY_KERNEL_CS * 8 + 4(%edi)
++	movb %al,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 4(%edi)
++	movb %ah,GDT_ENTRY_KERNEL_CS * 8 + 7(%edi)
++	movb %ah,GDT_ENTRY_KERNEXEC_KERNEL_CS * 8 + 7(%edi)
++	rorl $16,%eax
++	addl $PAGE_SIZE_asm,%edi
++	loop 1b
++#endif
++
+ /*
+  * Clear BSS first so that there are no surprises...
+  */
+@@ -201,8 +269,11 @@ ENTRY(startup_32)
+ 	movl %eax, pa(max_pfn_mapped)
+ 
+ 	/* Do early initialization of the fixmap area */
+-	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
+-	movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8)
++#ifdef CONFIG_COMPAT_VDSO
++	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8)
++#else
++	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8)
++#endif
+ #else	/* Not PAE */
+ 
+ page_pde_offset = (__PAGE_OFFSET >> 20);
+@@ -232,8 +303,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
+ 	movl %eax, pa(max_pfn_mapped)
+ 
+ 	/* Do early initialization of the fixmap area */
+-	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax
+-	movl %eax,pa(initial_page_table+0xffc)
++#ifdef CONFIG_COMPAT_VDSO
++	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc)
++#else
++	movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc)
++#endif
+ #endif
+ 
+ #ifdef CONFIG_PARAVIRT
+@@ -247,9 +321,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20);
+ 	cmpl $num_subarch_entries, %eax
+ 	jae bad_subarch
+ 
+-	movl pa(subarch_entries)(,%eax,4), %eax
+-	subl $__PAGE_OFFSET, %eax
+-	jmp *%eax
++	jmp *pa(subarch_entries)(,%eax,4)
+ 
+ bad_subarch:
+ WEAK(lguest_entry)
+@@ -261,10 +333,10 @@ WEAK(xen_entry)
+ 	__INITDATA
+ 
+ subarch_entries:
+-	.long default_entry		/* normal x86/PC */
+-	.long lguest_entry		/* lguest hypervisor */
+-	.long xen_entry			/* Xen hypervisor */
+-	.long default_entry		/* Moorestown MID */
++	.long ta(default_entry)		/* normal x86/PC */
++	.long ta(lguest_entry)		/* lguest hypervisor */
++	.long ta(xen_entry)		/* Xen hypervisor */
++	.long ta(default_entry)		/* Moorestown MID */
+ num_subarch_entries = (. - subarch_entries) / 4
+ .previous
+ #else
+@@ -354,6 +426,7 @@ default_entry:
+ 	movl pa(mmu_cr4_features),%eax
+ 	movl %eax,%cr4
+ 
++#ifdef CONFIG_X86_PAE
+ 	testb $X86_CR4_PAE, %al		# check if PAE is enabled
+ 	jz enable_paging
+ 
+@@ -382,6 +455,9 @@ default_entry:
+ 	/* Make changes effective */
+ 	wrmsr
+ 
++	btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4)
++#endif
++
+ enable_paging:
+ 
+ /*
+@@ -449,14 +525,20 @@ is486:
+ 1:	movl $(__KERNEL_DS),%eax	# reload all the segment registers
+ 	movl %eax,%ss			# after changing gdt.
+ 
+-	movl $(__USER_DS),%eax		# DS/ES contains default USER segment
++#	movl $(__KERNEL_DS),%eax	# DS/ES contains default KERNEL segment
+ 	movl %eax,%ds
+ 	movl %eax,%es
+ 
+ 	movl $(__KERNEL_PERCPU), %eax
+ 	movl %eax,%fs			# set this cpu's percpu
+ 
++#ifdef CONFIG_CC_STACKPROTECTOR
+ 	movl $(__KERNEL_STACK_CANARY),%eax
++#elif defined(CONFIG_PAX_MEMORY_UDEREF)
++	movl $(__USER_DS),%eax
++#else
++	xorl %eax,%eax
++#endif
+ 	movl %eax,%gs
+ 
+ 	xorl %eax,%eax			# Clear LDT
+@@ -513,8 +595,11 @@ setup_once:
+ 	 * relocation.  Manually set base address in stack canary
+ 	 * segment descriptor.
+ 	 */
+-	movl $gdt_page,%eax
++	movl $cpu_gdt_table,%eax
+ 	movl $stack_canary,%ecx
++#ifdef CONFIG_SMP
++	addl $__per_cpu_load,%ecx
++#endif
+ 	movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax)
+ 	shrl $16, %ecx
+ 	movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax)
+@@ -551,7 +636,7 @@ early_idt_handler_common:
+ 	cmpl $2,(%esp)		# X86_TRAP_NMI
+ 	je is_nmi		# Ignore NMI
+ 
+-	cmpl $2,%ss:early_recursion_flag
++	cmpl $1,%ss:early_recursion_flag
+ 	je hlt_loop
+ 	incl %ss:early_recursion_flag
+ 
+@@ -589,8 +674,8 @@ early_idt_handler_common:
+ 	pushl (20+6*4)(%esp)	/* trapno */
+ 	pushl $fault_msg
+ 	call printk
+-#endif
+ 	call dump_stack
++#endif
+ hlt_loop:
+ 	hlt
+ 	jmp hlt_loop
+@@ -610,8 +695,11 @@ ENDPROC(early_idt_handler_common)
+ /* This is the default interrupt "handler" :-) */
+ 	ALIGN
+ ignore_int:
+-	cld
+ #ifdef CONFIG_PRINTK
++	cmpl $2,%ss:early_recursion_flag
++	je hlt_loop
++	incl %ss:early_recursion_flag
++	cld
+ 	pushl %eax
+ 	pushl %ecx
+ 	pushl %edx
+@@ -620,9 +708,6 @@ ignore_int:
+ 	movl $(__KERNEL_DS),%eax
+ 	movl %eax,%ds
+ 	movl %eax,%es
+-	cmpl $2,early_recursion_flag
+-	je hlt_loop
+-	incl early_recursion_flag
+ 	pushl 16(%esp)
+ 	pushl 24(%esp)
+ 	pushl 32(%esp)
+@@ -656,29 +741,34 @@ ENTRY(setup_once_ref)
+ /*
+  * BSS section
+  */
+-__PAGE_ALIGNED_BSS
+-	.align PAGE_SIZE
+ #ifdef CONFIG_X86_PAE
++.section .initial_pg_pmd,"a",@progbits
+ initial_pg_pmd:
+ 	.fill 1024*KPMDS,4,0
+ #else
++.section .initial_page_table,"a",@progbits
+ ENTRY(initial_page_table)
+ 	.fill 1024,4,0
+ #endif
++.section .initial_pg_fixmap,"a",@progbits
+ initial_pg_fixmap:
+ 	.fill 1024,4,0
++.section .empty_zero_page,"a",@progbits
+ ENTRY(empty_zero_page)
+ 	.fill 4096,1,0
++.section .swapper_pg_dir,"a",@progbits
+ ENTRY(swapper_pg_dir)
++#ifdef CONFIG_X86_PAE
++	.fill 4,8,0
++#else
+ 	.fill 1024,4,0
++#endif
+ 
+ /*
+  * This starts the data section.
+  */
+ #ifdef CONFIG_X86_PAE
+-__PAGE_ALIGNED_DATA
+-	/* Page-aligned for the benefit of paravirt? */
+-	.align PAGE_SIZE
++.section .initial_page_table,"a",@progbits
+ ENTRY(initial_page_table)
+ 	.long	pa(initial_pg_pmd+PGD_IDENT_ATTR),0	/* low identity map */
+ # if KPMDS == 3
+@@ -697,12 +787,20 @@ ENTRY(initial_page_table)
+ #  error "Kernel PMDs should be 1, 2 or 3"
+ # endif
+ 	.align PAGE_SIZE		/* needs to be page-sized too */
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++ENTRY(cpu_pgd)
++	.rept 2*NR_CPUS
++	.fill	4,8,0
++	.endr
++#endif
++
+ #endif
+ 
+ .data
+ .balign 4
+ ENTRY(stack_start)
+-	.long init_thread_union+THREAD_SIZE
++	.long init_thread_union+THREAD_SIZE-8
+ 
+ __INITRODATA
+ int_msg:
+@@ -730,7 +828,7 @@ fault_msg:
+  * segment size, and 32-bit linear address value:
+  */
+ 
+-	.data
++.section .rodata,"a",@progbits
+ .globl boot_gdt_descr
+ .globl idt_descr
+ 
+@@ -739,7 +837,7 @@ fault_msg:
+ 	.word 0				# 32 bit align gdt_desc.address
+ boot_gdt_descr:
+ 	.word __BOOT_DS+7
+-	.long boot_gdt - __PAGE_OFFSET
++	.long pa(boot_gdt)
+ 
+ 	.word 0				# 32-bit align idt_desc.address
+ idt_descr:
+@@ -750,7 +848,7 @@ idt_descr:
+ 	.word 0				# 32 bit align gdt_desc.address
+ ENTRY(early_gdt_descr)
+ 	.word GDT_ENTRIES*8-1
+-	.long gdt_page			/* Overwritten for secondary CPUs */
++	.long cpu_gdt_table		/* Overwritten for secondary CPUs */
+ 
+ /*
+  * The boot_gdt must mirror the equivalent in setup.S and is
+@@ -759,5 +857,65 @@ ENTRY(early_gdt_descr)
+ 	.align L1_CACHE_BYTES
+ ENTRY(boot_gdt)
+ 	.fill GDT_ENTRY_BOOT_CS,8,0
+-	.quad 0x00cf9a000000ffff	/* kernel 4GB code at 0x00000000 */
+-	.quad 0x00cf92000000ffff	/* kernel 4GB data at 0x00000000 */
++	.quad 0x00cf9b000000ffff	/* kernel 4GB code at 0x00000000 */
++	.quad 0x00cf93000000ffff	/* kernel 4GB data at 0x00000000 */
++
++	.align PAGE_SIZE_asm
++ENTRY(cpu_gdt_table)
++	.rept NR_CPUS
++	.quad 0x0000000000000000	/* NULL descriptor */
++	.quad 0x0000000000000000	/* 0x0b reserved */
++	.quad 0x0000000000000000	/* 0x13 reserved */
++	.quad 0x0000000000000000	/* 0x1b reserved */
++
++#ifdef CONFIG_PAX_KERNEXEC
++	.quad 0x00cf9b000000ffff	/* 0x20 alternate kernel 4GB code at 0x00000000 */
++#else
++	.quad 0x0000000000000000	/* 0x20 unused */
++#endif
++
++	.quad 0x0000000000000000	/* 0x28 unused */
++	.quad 0x0000000000000000	/* 0x33 TLS entry 1 */
++	.quad 0x0000000000000000	/* 0x3b TLS entry 2 */
++	.quad 0x0000000000000000	/* 0x43 TLS entry 3 */
++	.quad 0x0000000000000000	/* 0x4b reserved */
++	.quad 0x0000000000000000	/* 0x53 reserved */
++	.quad 0x0000000000000000	/* 0x5b reserved */
++
++	.quad 0x00cf9b000000ffff	/* 0x60 kernel 4GB code at 0x00000000 */
++	.quad 0x00cf93000000ffff	/* 0x68 kernel 4GB data at 0x00000000 */
++	.quad 0x00cffb000000ffff	/* 0x73 user 4GB code at 0x00000000 */
++	.quad 0x00cff3000000ffff	/* 0x7b user 4GB data at 0x00000000 */
++
++	.quad 0x0000000000000000	/* 0x80 TSS descriptor */
++	.quad 0x0000000000000000	/* 0x88 LDT descriptor */
++
++	/*
++	 * Segments used for calling PnP BIOS have byte granularity.
++	 * The code segments and data segments have fixed 64k limits,
++	 * the transfer segment sizes are set at run time.
++	 */
++	.quad 0x00409b000000ffff	/* 0x90 32-bit code */
++	.quad 0x00009b000000ffff	/* 0x98 16-bit code */
++	.quad 0x000093000000ffff	/* 0xa0 16-bit data */
++	.quad 0x0000930000000000	/* 0xa8 16-bit data */
++	.quad 0x0000930000000000	/* 0xb0 16-bit data */
++
++	/*
++	 * The APM segments have byte granularity and their bases
++	 * are set at run time.  All have 64k limits.
++	 */
++	.quad 0x00409b000000ffff	/* 0xb8 APM CS    code */
++	.quad 0x00009b000000ffff	/* 0xc0 APM CS 16 code (16 bit) */
++	.quad 0x004093000000ffff	/* 0xc8 APM DS    data */
++
++	.quad 0x00c093000000ffff	/* 0xd0 - ESPFIX SS */
++	.quad 0x0040930000000000	/* 0xd8 - PERCPU */
++	.quad 0x0040910000000017	/* 0xe0 - STACK_CANARY */
++	.quad 0x0000000000000000	/* 0xe8 - PCIBIOS_CS */
++	.quad 0x0000000000000000	/* 0xf0 - PCIBIOS_DS */
++	.quad 0x0000000000000000	/* 0xf8 - GDT entry 31: double-fault TSS */
++
++	/* Be sure this is zeroed to avoid false validations in Xen */
++	.fill PAGE_SIZE_asm - GDT_SIZE,1,0
++	.endr
+diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
+index a2dc0ad..f3f397d 100644
+--- a/arch/x86/kernel/head_64.S
++++ b/arch/x86/kernel/head_64.S
+@@ -20,6 +20,8 @@
+ #include <asm/processor-flags.h>
+ #include <asm/percpu.h>
+ #include <asm/nops.h>
++#include <asm/cpufeature.h>
++#include <asm/alternative-asm.h>
+ 
+ #ifdef CONFIG_PARAVIRT
+ #include <asm/asm-offsets.h>
+@@ -41,6 +43,12 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET)
+ L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET)
+ L4_START_KERNEL = pgd_index(__START_KERNEL_map)
+ L3_START_KERNEL = pud_index(__START_KERNEL_map)
++L4_VMALLOC_START = pgd_index(VMALLOC_START)
++L3_VMALLOC_START = pud_index(VMALLOC_START)
++L4_VMALLOC_END = pgd_index(VMALLOC_END)
++L3_VMALLOC_END = pud_index(VMALLOC_END)
++L4_VMEMMAP_START = pgd_index(VMEMMAP_START)
++L3_VMEMMAP_START = pud_index(VMEMMAP_START)
+ 
+ 	.text
+ 	__HEAD
+@@ -89,11 +97,26 @@ startup_64:
+ 	 * Fixup the physical addresses in the page table
+ 	 */
+ 	addq	%rbp, early_level4_pgt + (L4_START_KERNEL*8)(%rip)
++	addq	%rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip)
++	addq	%rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip)
++	addq	%rbp, init_level4_pgt + (L4_VMALLOC_END*8)(%rip)
++	addq	%rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip)
++	addq	%rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip)
+ 
+-	addq	%rbp, level3_kernel_pgt + (510*8)(%rip)
+-	addq	%rbp, level3_kernel_pgt + (511*8)(%rip)
++	addq	%rbp, level3_ident_pgt + (0*8)(%rip)
++#ifndef CONFIG_XEN
++	addq	%rbp, level3_ident_pgt + (1*8)(%rip)
++#endif
+ 
++	addq	%rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip)
++
++	addq	%rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip)
++	addq	%rbp, level3_kernel_pgt + ((L3_START_KERNEL+1)*8)(%rip)
++
++	addq	%rbp, level2_fixmap_pgt + (504*8)(%rip)
++	addq	%rbp, level2_fixmap_pgt + (505*8)(%rip)
+ 	addq	%rbp, level2_fixmap_pgt + (506*8)(%rip)
++	addq	%rbp, level2_fixmap_pgt + (507*8)(%rip)
+ 
+ 	/*
+ 	 * Set up the identity mapping for the switchover.  These
+@@ -174,11 +197,12 @@ ENTRY(secondary_startup_64)
+ 	 * after the boot processor executes this code.
+ 	 */
+ 
++	orq	$-1, %rbp
+ 	movq	$(init_level4_pgt - __START_KERNEL_map), %rax
+ 1:
+ 
+-	/* Enable PAE mode and PGE */
+-	movl	$(X86_CR4_PAE | X86_CR4_PGE), %ecx
++	/* Enable PAE mode and PSE/PGE */
++	movl	$(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %ecx
+ 	movq	%rcx, %cr4
+ 
+ 	/* Setup early boot stage 4 level pagetables. */
+@@ -199,10 +223,21 @@ ENTRY(secondary_startup_64)
+ 	movl	$MSR_EFER, %ecx
+ 	rdmsr
+ 	btsl	$_EFER_SCE, %eax	/* Enable System Call */
+-	btl	$20,%edi		/* No Execute supported? */
++	btl	$(X86_FEATURE_NX & 31),%edi	/* No Execute supported? */
+ 	jnc     1f
+ 	btsl	$_EFER_NX, %eax
++	cmpq	$-1, %rbp
++	je	1f
+ 	btsq	$_PAGE_BIT_NX,early_pmd_flags(%rip)
++	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_PAGE_OFFSET(%rip)
++	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_START(%rip)
++	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMALLOC_END(%rip)
++	btsq	$_PAGE_BIT_NX, init_level4_pgt + 8*L4_VMEMMAP_START(%rip)
++	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*504(%rip)
++	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*505(%rip)
++	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*506(%rip)
++	btsq	$_PAGE_BIT_NX, level2_fixmap_pgt + 8*507(%rip)
++	btsq	$_PAGE_BIT_NX, __supported_pte_mask(%rip)
+ 1:	wrmsr				/* Make changes effective */
+ 
+ 	/* Setup cr0 */
+@@ -282,6 +317,7 @@ ENTRY(secondary_startup_64)
+ 	 *	REX.W + FF /5 JMP m16:64 Jump far, absolute indirect,
+ 	 *		address given in m16:64.
+ 	 */
++	pax_set_fptr_mask
+ 	movq	initial_code(%rip),%rax
+ 	pushq	$0		# fake return address to stop unwinder
+ 	pushq	$__KERNEL_CS	# set correct cs
+@@ -313,7 +349,7 @@ ENDPROC(start_cpu0)
+ 	.quad	INIT_PER_CPU_VAR(irq_stack_union)
+ 
+ 	GLOBAL(stack_start)
+-	.quad  init_thread_union+THREAD_SIZE-8
++	.quad  init_thread_union+THREAD_SIZE-16
+ 	.word  0
+ 	__FINITDATA
+ 
+@@ -393,7 +429,7 @@ early_idt_handler_common:
+ 	call dump_stack
+ #ifdef CONFIG_KALLSYMS	
+ 	leaq early_idt_ripmsg(%rip),%rdi
+-	movq 40(%rsp),%rsi	# %rip again
++	movq 88(%rsp),%rsi	# %rip again
+ 	call __print_symbol
+ #endif
+ #endif /* EARLY_PRINTK */
+@@ -422,6 +458,7 @@ ENDPROC(early_idt_handler_common)
+ early_recursion_flag:
+ 	.long 0
+ 
++	.section .rodata,"a",@progbits
+ #ifdef CONFIG_EARLY_PRINTK
+ early_idt_msg:
+ 	.asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n"
+@@ -449,29 +486,52 @@ NEXT_PAGE(early_level4_pgt)
+ NEXT_PAGE(early_dynamic_pgts)
+ 	.fill	512*EARLY_DYNAMIC_PAGE_TABLES,8,0
+ 
+-	.data
++	.section .rodata,"a",@progbits
+ 
+-#ifndef CONFIG_XEN
+ NEXT_PAGE(init_level4_pgt)
+-	.fill	512,8,0
+-#else
+-NEXT_PAGE(init_level4_pgt)
+-	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ 	.org    init_level4_pgt + L4_PAGE_OFFSET*8, 0
+ 	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
++	.org	init_level4_pgt + L4_VMALLOC_START*8, 0
++	.quad	level3_vmalloc_start_pgt - __START_KERNEL_map + _KERNPG_TABLE
++	.org	init_level4_pgt + L4_VMALLOC_END*8, 0
++	.quad	level3_vmalloc_end_pgt - __START_KERNEL_map + _KERNPG_TABLE
++	.org	init_level4_pgt + L4_VMEMMAP_START*8, 0
++	.quad	level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ 	.org    init_level4_pgt + L4_START_KERNEL*8, 0
+ 	/* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
+ 	.quad   level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++NEXT_PAGE(cpu_pgd)
++	.rept 2*NR_CPUS
++	.fill	512,8,0
++	.endr
++#endif
++
+ NEXT_PAGE(level3_ident_pgt)
+ 	.quad	level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
++#ifdef CONFIG_XEN
+ 	.fill	511, 8, 0
++#else
++	.quad	level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE
++	.fill	510,8,0
++#endif
++
++NEXT_PAGE(level3_vmalloc_start_pgt)
++	.fill	512,8,0
++
++NEXT_PAGE(level3_vmalloc_end_pgt)
++	.fill	512,8,0
++
++NEXT_PAGE(level3_vmemmap_pgt)
++	.fill	L3_VMEMMAP_START,8,0
++	.quad	level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE
++
+ NEXT_PAGE(level2_ident_pgt)
+-	/* Since I easily can, map the first 1G.
++	/* Since I easily can, map the first 2G.
+ 	 * Don't set NX because code runs from these pages.
+ 	 */
+-	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
+-#endif
++	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD)
+ 
+ NEXT_PAGE(level3_kernel_pgt)
+ 	.fill	L3_START_KERNEL,8,0
+@@ -479,6 +539,9 @@ NEXT_PAGE(level3_kernel_pgt)
+ 	.quad	level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
+ 	.quad	level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+ 
++NEXT_PAGE(level2_vmemmap_pgt)
++	.fill	512,8,0
++
+ NEXT_PAGE(level2_kernel_pgt)
+ 	/*
+ 	 * 512 MB kernel mapping. We spend a full page on this pagetable
+@@ -494,30 +557,68 @@ NEXT_PAGE(level2_kernel_pgt)
+ 		KERNEL_IMAGE_SIZE/PMD_SIZE)
+ 
+ NEXT_PAGE(level2_fixmap_pgt)
+-	.fill	506,8,0
+-	.quad	level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE
+-	/* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */
+-	.fill	5,8,0
++	.fill	504,8,0
++	.quad	level1_fixmap_pgt - __START_KERNEL_map + 0 * PAGE_SIZE + _PAGE_TABLE
++	.quad	level1_fixmap_pgt - __START_KERNEL_map + 1 * PAGE_SIZE + _PAGE_TABLE
++	.quad	level1_fixmap_pgt - __START_KERNEL_map + 2 * PAGE_SIZE + _PAGE_TABLE
++	.quad	level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE
++	/* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */
++	.fill	4,8,0
+ 
+ NEXT_PAGE(level1_fixmap_pgt)
++	.fill	3*512,8,0
++
++NEXT_PAGE(level1_vsyscall_pgt)
+ 	.fill	512,8,0
+ 
+ #undef PMDS
+ 
+-	.data
++	.align PAGE_SIZE
++ENTRY(cpu_gdt_table)
++	.rept NR_CPUS
++	.quad	0x0000000000000000	/* NULL descriptor */
++	.quad	0x00cf9b000000ffff	/* __KERNEL32_CS */
++	.quad	0x00af9b000000ffff	/* __KERNEL_CS */
++	.quad	0x00cf93000000ffff	/* __KERNEL_DS */
++	.quad	0x00cffb000000ffff	/* __USER32_CS */
++	.quad	0x00cff3000000ffff	/* __USER_DS, __USER32_DS  */
++	.quad	0x00affb000000ffff	/* __USER_CS */
++
++#ifdef CONFIG_PAX_KERNEXEC
++	.quad	0x00af9b000000ffff	/* __KERNEXEC_KERNEL_CS */
++#else
++	.quad	0x0			/* unused */
++#endif
++
++	.quad	0,0			/* TSS */
++	.quad	0,0			/* LDT */
++	.quad	0,0,0			/* three TLS descriptors */
++	.quad	0x0000f40000000000	/* node/CPU stored in limit */
++	/* asm/segment.h:GDT_ENTRIES must match this */
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	.quad	0x00cf93000000ffff	/* __UDEREF_KERNEL_DS */
++#else
++	.quad	0x0			/* unused */
++#endif
++
++	/* zero the remaining page */
++	.fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0
++	.endr
++
+ 	.align 16
+ 	.globl early_gdt_descr
+ early_gdt_descr:
+ 	.word	GDT_ENTRIES*8-1
+ early_gdt_descr_base:
+-	.quad	INIT_PER_CPU_VAR(gdt_page)
++	.quad	cpu_gdt_table
+ 
+ ENTRY(phys_base)
+ 	/* This must match the first entry in level2_kernel_pgt */
+ 	.quad   0x0000000000000000
+ 
+ #include "../../x86/xen/xen-head.S"
+-	
+-	__PAGE_ALIGNED_BSS
++
++	.section .rodata,"a",@progbits
+ NEXT_PAGE(empty_zero_page)
+ 	.skip PAGE_SIZE
+diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
+index 05fd74f..c3548b1 100644
+--- a/arch/x86/kernel/i386_ksyms_32.c
++++ b/arch/x86/kernel/i386_ksyms_32.c
+@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void);
+ EXPORT_SYMBOL(cmpxchg8b_emu);
+ #endif
+ 
++EXPORT_SYMBOL_GPL(cpu_gdt_table);
++
+ /* Networking helper routines. */
+ EXPORT_SYMBOL(csum_partial_copy_generic);
++EXPORT_SYMBOL(csum_partial_copy_generic_to_user);
++EXPORT_SYMBOL(csum_partial_copy_generic_from_user);
+ 
+ EXPORT_SYMBOL(__get_user_1);
+ EXPORT_SYMBOL(__get_user_2);
+@@ -44,3 +48,11 @@ EXPORT_SYMBOL(___preempt_schedule);
+ EXPORT_SYMBOL(___preempt_schedule_context);
+ #endif
+ #endif
++
++#ifdef CONFIG_PAX_KERNEXEC
++EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR);
++#endif
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++EXPORT_SYMBOL(cpu_pgd);
++#endif
+diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
+index d5dd808..b6432cf 100644
+--- a/arch/x86/kernel/i387.c
++++ b/arch/x86/kernel/i387.c
+@@ -51,7 +51,7 @@ static inline bool interrupted_kernel_fpu_idle(void)
+ static inline bool interrupted_user_mode(void)
+ {
+ 	struct pt_regs *regs = get_irq_regs();
+-	return regs && user_mode_vm(regs);
++	return regs && user_mode(regs);
+ }
+ 
+ /*
+diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
+index 2e977b5..5f2c273 100644
+--- a/arch/x86/kernel/i8259.c
++++ b/arch/x86/kernel/i8259.c
+@@ -110,7 +110,7 @@ static int i8259A_irq_pending(unsigned int irq)
+ static void make_8259A_irq(unsigned int irq)
+ {
+ 	disable_irq_nosync(irq);
+-	io_apic_irqs &= ~(1<<irq);
++	io_apic_irqs &= ~(1UL<<irq);
+ 	irq_set_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
+ 				      i8259A_chip.name);
+ 	enable_irq(irq);
+@@ -209,7 +209,7 @@ spurious_8259A_irq:
+ 			       "spurious 8259A interrupt: IRQ%d.\n", irq);
+ 			spurious_irq_mask |= irqmask;
+ 		}
+-		atomic_inc(&irq_err_count);
++		atomic_inc_unchecked(&irq_err_count);
+ 		/*
+ 		 * Theoretically we do not have to handle this IRQ,
+ 		 * but in Linux this does not cause problems and is
+@@ -332,14 +332,16 @@ static void init_8259A(int auto_eoi)
+ 	/* (slave's support for AEOI in flat mode is to be investigated) */
+ 	outb_pic(SLAVE_ICW4_DEFAULT, PIC_SLAVE_IMR);
+ 
++	pax_open_kernel();
+ 	if (auto_eoi)
+ 		/*
+ 		 * In AEOI mode we just have to mask the interrupt
+ 		 * when acking.
+ 		 */
+-		i8259A_chip.irq_mask_ack = disable_8259A_irq;
++		*(void **)&i8259A_chip.irq_mask_ack = disable_8259A_irq;
+ 	else
+-		i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
++		*(void **)&i8259A_chip.irq_mask_ack = mask_and_ack_8259A;
++	pax_close_kernel();
+ 
+ 	udelay(100);		/* wait for 8259A to initialize */
+ 
+diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
+index a979b5b..1d6db75 100644
+--- a/arch/x86/kernel/io_delay.c
++++ b/arch/x86/kernel/io_delay.c
+@@ -58,7 +58,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
+  * Quirk table for systems that misbehave (lock up, etc.) if port
+  * 0x80 is used:
+  */
+-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
++static const struct dmi_system_id __initconst io_delay_0xed_port_dmi_table[] = {
+ 	{
+ 		.callback	= dmi_io_delay_0xed_port,
+ 		.ident		= "Compaq Presario V6000",
+diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
+index 4ddaf66..49d5c18 100644
+--- a/arch/x86/kernel/ioport.c
++++ b/arch/x86/kernel/ioport.c
+@@ -6,6 +6,7 @@
+ #include <linux/sched.h>
+ #include <linux/kernel.h>
+ #include <linux/capability.h>
++#include <linux/security.h>
+ #include <linux/errno.h>
+ #include <linux/types.h>
+ #include <linux/ioport.h>
+@@ -30,6 +31,12 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
+ 		return -EINVAL;
+ 	if (turn_on && !capable(CAP_SYS_RAWIO))
+ 		return -EPERM;
++#ifdef CONFIG_GRKERNSEC_IO
++	if (turn_on && grsec_disable_privio) {
++		gr_handle_ioperm();
++		return -ENODEV;
++	}
++#endif
+ 
+ 	/*
+ 	 * If it's the first ioperm() call in this thread's lifetime, set the
+@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
+ 	 * because the ->io_bitmap_max value must match the bitmap
+ 	 * contents:
+ 	 */
+-	tss = &per_cpu(init_tss, get_cpu());
++	tss = init_tss + get_cpu();
+ 
+ 	if (turn_on)
+ 		bitmap_clear(t->io_bitmap_ptr, from, num);
+@@ -105,6 +112,12 @@ SYSCALL_DEFINE1(iopl, unsigned int, level)
+ 	if (level > old) {
+ 		if (!capable(CAP_SYS_RAWIO))
+ 			return -EPERM;
++#ifdef CONFIG_GRKERNSEC_IO
++		if (grsec_disable_privio) {
++			gr_handle_iopl();
++			return -ENODEV;
++		}
++#endif
+ 	}
+ 	regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12);
+ 	t->iopl = level << 12;
+diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
+index d99f31d..1c0f466 100644
+--- a/arch/x86/kernel/irq.c
++++ b/arch/x86/kernel/irq.c
+@@ -21,7 +21,7 @@
+ #define CREATE_TRACE_POINTS
+ #include <asm/trace/irq_vectors.h>
+ 
+-atomic_t irq_err_count;
++atomic_unchecked_t irq_err_count;
+ 
+ /* Function pointer for generic interrupt vector handling */
+ void (*x86_platform_ipi_callback)(void) = NULL;
+@@ -125,9 +125,9 @@ int arch_show_interrupts(struct seq_file *p, int prec)
+ 		seq_printf(p, "%10u ", per_cpu(mce_poll_count, j));
+ 	seq_printf(p, "  Machine check polls\n");
+ #endif
+-	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
++	seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count));
+ #if defined(CONFIG_X86_IO_APIC)
+-	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count));
++	seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count));
+ #endif
+ 	return 0;
+ }
+@@ -167,7 +167,7 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
+ 
+ u64 arch_irq_stat(void)
+ {
+-	u64 sum = atomic_read(&irq_err_count);
++	u64 sum = atomic_read_unchecked(&irq_err_count);
+ 	return sum;
+ }
+ 
+diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
+index d7fcbed..96e715a 100644
+--- a/arch/x86/kernel/irq_32.c
++++ b/arch/x86/kernel/irq_32.c
+@@ -29,6 +29,8 @@ EXPORT_PER_CPU_SYMBOL(irq_regs);
+ 
+ #ifdef CONFIG_DEBUG_STACKOVERFLOW
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ int sysctl_panic_on_stackoverflow __read_mostly;
+ 
+ /* Debugging check for stack overflow: is there less than 1KB free? */
+@@ -39,13 +41,14 @@ static int check_stack_overflow(void)
+ 	__asm__ __volatile__("andl %%esp,%0" :
+ 			     "=r" (sp) : "0" (THREAD_SIZE - 1));
+ 
+-	return sp < (sizeof(struct thread_info) + STACK_WARN);
++	return sp < STACK_WARN;
+ }
+ 
+ static void print_stack_overflow(void)
+ {
+ 	printk(KERN_WARNING "low stack detected by irq handler\n");
+ 	dump_stack();
++	gr_handle_kernel_exploit();
+ 	if (sysctl_panic_on_stackoverflow)
+ 		panic("low stack detected by irq handler - check messages\n");
+ }
+@@ -59,8 +62,8 @@ static inline void print_stack_overflow(void) { }
+  * per-CPU IRQ handling contexts (thread information and stack)
+  */
+ union irq_ctx {
+-	struct thread_info      tinfo;
+-	u32                     stack[THREAD_SIZE/sizeof(u32)];
++	unsigned long		previous_esp;
++	u32			stack[THREAD_SIZE/sizeof(u32)];
+ } __attribute__((aligned(THREAD_SIZE)));
+ 
+ static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx);
+@@ -80,10 +83,9 @@ static void call_on_stack(void *func, void *stack)
+ static inline int
+ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
+ {
+-	union irq_ctx *curctx, *irqctx;
++	union irq_ctx *irqctx;
+ 	u32 *isp, arg1, arg2;
+ 
+-	curctx = (union irq_ctx *) current_thread_info();
+ 	irqctx = __this_cpu_read(hardirq_ctx);
+ 
+ 	/*
+@@ -92,13 +94,16 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
+ 	 * handler) we can't do that and just have to keep using the
+ 	 * current stack (which is the irq stack already after all)
+ 	 */
+-	if (unlikely(curctx == irqctx))
++	if (unlikely((void *)current_stack_pointer - (void *)irqctx < THREAD_SIZE))
+ 		return 0;
+ 
+ 	/* build the stack frame on the IRQ stack */
+-	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
+-	irqctx->tinfo.task = curctx->tinfo.task;
+-	irqctx->tinfo.previous_esp = current_stack_pointer;
++	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8);
++	irqctx->previous_esp = current_stack_pointer;
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	__set_fs(MAKE_MM_SEG(0));
++#endif
+ 
+ 	if (unlikely(overflow))
+ 		call_on_stack(print_stack_overflow, isp);
+@@ -110,6 +115,11 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
+ 		     :  "0" (irq),   "1" (desc),  "2" (isp),
+ 			"D" (desc->handle_irq)
+ 		     : "memory", "cc", "ecx");
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	__set_fs(current_thread_info()->addr_limit);
++#endif
++
+ 	return 1;
+ }
+ 
+@@ -118,48 +128,34 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
+  */
+ void irq_ctx_init(int cpu)
+ {
+-	union irq_ctx *irqctx;
+-
+ 	if (per_cpu(hardirq_ctx, cpu))
+ 		return;
+ 
+-	irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
+-					       THREADINFO_GFP,
+-					       THREAD_SIZE_ORDER));
+-	memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
+-	irqctx->tinfo.cpu		= cpu;
+-	irqctx->tinfo.addr_limit	= MAKE_MM_SEG(0);
+-
+-	per_cpu(hardirq_ctx, cpu) = irqctx;
+-
+-	irqctx = page_address(alloc_pages_node(cpu_to_node(cpu),
+-					       THREADINFO_GFP,
+-					       THREAD_SIZE_ORDER));
+-	memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
+-	irqctx->tinfo.cpu		= cpu;
+-	irqctx->tinfo.addr_limit	= MAKE_MM_SEG(0);
+-
+-	per_cpu(softirq_ctx, cpu) = irqctx;
+-
+-	printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
+-	       cpu, per_cpu(hardirq_ctx, cpu),  per_cpu(softirq_ctx, cpu));
++	per_cpu(hardirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
++	per_cpu(softirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREADINFO_GFP, THREAD_SIZE_ORDER));
+ }
+ 
+ void do_softirq_own_stack(void)
+ {
+-	struct thread_info *curctx;
+ 	union irq_ctx *irqctx;
+ 	u32 *isp;
+ 
+-	curctx = current_thread_info();
+ 	irqctx = __this_cpu_read(softirq_ctx);
+-	irqctx->tinfo.task = curctx->task;
+-	irqctx->tinfo.previous_esp = current_stack_pointer;
++	irqctx->previous_esp = current_stack_pointer;
+ 
+ 	/* build the stack frame on the softirq stack */
+-	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
++	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	__set_fs(MAKE_MM_SEG(0));
++#endif
+ 
+ 	call_on_stack(__do_softirq, isp);
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	__set_fs(current_thread_info()->addr_limit);
++#endif
++
+ }
+ 
+ bool handle_irq(unsigned irq, struct pt_regs *regs)
+@@ -173,7 +169,7 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
+ 	if (unlikely(!desc))
+ 		return false;
+ 
+-	if (user_mode_vm(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
++	if (user_mode(regs) || !execute_on_irq_stack(overflow, desc, irq)) {
+ 		if (unlikely(overflow))
+ 			print_stack_overflow();
+ 		desc->handle_irq(irq, desc);
+diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
+index 4d1c746..55a22d6 100644
+--- a/arch/x86/kernel/irq_64.c
++++ b/arch/x86/kernel/irq_64.c
+@@ -26,6 +26,8 @@ EXPORT_PER_CPU_SYMBOL(irq_stat);
+ DEFINE_PER_CPU(struct pt_regs *, irq_regs);
+ EXPORT_PER_CPU_SYMBOL(irq_regs);
+ 
++extern void gr_handle_kernel_exploit(void);
++
+ int sysctl_panic_on_stackoverflow;
+ 
+ /*
+@@ -44,7 +46,7 @@ static inline void stack_overflow_check(struct pt_regs *regs)
+ 	u64 estack_top, estack_bottom;
+ 	u64 curbase = (u64)task_stack_page(current);
+ 
+-	if (user_mode_vm(regs))
++	if (user_mode(regs))
+ 		return;
+ 
+ 	if (regs->sp >= curbase + sizeof(struct thread_info) +
+@@ -69,6 +71,8 @@ static inline void stack_overflow_check(struct pt_regs *regs)
+ 		irq_stack_top, irq_stack_bottom,
+ 		estack_top, estack_bottom);
+ 
++	gr_handle_kernel_exploit();
++
+ 	if (sysctl_panic_on_stackoverflow)
+ 		panic("low stack detected by irq handler - check messages\n");
+ #endif
+diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
+index 26d5a55..a01160a 100644
+--- a/arch/x86/kernel/jump_label.c
++++ b/arch/x86/kernel/jump_label.c
+@@ -51,7 +51,7 @@ static void __jump_label_transform(struct jump_entry *entry,
+ 			 * Jump label is enabled for the first time.
+ 			 * So we expect a default_nop...
+ 			 */
+-			if (unlikely(memcmp((void *)entry->code, default_nop, 5)
++			if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5)
+ 				     != 0))
+ 				bug_at((void *)entry->code, __LINE__);
+ 		} else {
+@@ -59,7 +59,7 @@ static void __jump_label_transform(struct jump_entry *entry,
+ 			 * ...otherwise expect an ideal_nop. Otherwise
+ 			 * something went horribly wrong.
+ 			 */
+-			if (unlikely(memcmp((void *)entry->code, ideal_nop, 5)
++			if (unlikely(memcmp((void *)ktla_ktva(entry->code), ideal_nop, 5)
+ 				     != 0))
+ 				bug_at((void *)entry->code, __LINE__);
+ 		}
+@@ -75,13 +75,13 @@ static void __jump_label_transform(struct jump_entry *entry,
+ 		 * are converting the default nop to the ideal nop.
+ 		 */
+ 		if (init) {
+-			if (unlikely(memcmp((void *)entry->code, default_nop, 5) != 0))
++			if (unlikely(memcmp((void *)ktla_ktva(entry->code), default_nop, 5) != 0))
+ 				bug_at((void *)entry->code, __LINE__);
+ 		} else {
+ 			code.jump = 0xe9;
+ 			code.offset = entry->target -
+ 				(entry->code + JUMP_LABEL_NOP_SIZE);
+-			if (unlikely(memcmp((void *)entry->code, &code, 5) != 0))
++			if (unlikely(memcmp((void *)ktla_ktva(entry->code), &code, 5) != 0))
+ 				bug_at((void *)entry->code, __LINE__);
+ 		}
+ 		memcpy(&code, ideal_nops[NOP_ATOMIC5], JUMP_LABEL_NOP_SIZE);
+diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
+index 7ec1d5f..5a7d130 100644
+--- a/arch/x86/kernel/kgdb.c
++++ b/arch/x86/kernel/kgdb.c
+@@ -126,11 +126,11 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs)
+ #ifdef CONFIG_X86_32
+ 	switch (regno) {
+ 	case GDB_SS:
+-		if (!user_mode_vm(regs))
++		if (!user_mode(regs))
+ 			*(unsigned long *)mem = __KERNEL_DS;
+ 		break;
+ 	case GDB_SP:
+-		if (!user_mode_vm(regs))
++		if (!user_mode(regs))
+ 			*(unsigned long *)mem = kernel_stack_pointer(regs);
+ 		break;
+ 	case GDB_GS:
+@@ -228,7 +228,10 @@ static void kgdb_correct_hw_break(void)
+ 		bp->attr.bp_addr = breakinfo[breakno].addr;
+ 		bp->attr.bp_len = breakinfo[breakno].len;
+ 		bp->attr.bp_type = breakinfo[breakno].type;
+-		info->address = breakinfo[breakno].addr;
++		if (breakinfo[breakno].type == X86_BREAKPOINT_EXECUTE)
++			info->address = ktla_ktva(breakinfo[breakno].addr);
++		else
++			info->address = breakinfo[breakno].addr;
+ 		info->len = breakinfo[breakno].len;
+ 		info->type = breakinfo[breakno].type;
+ 		val = arch_install_hw_breakpoint(bp);
+@@ -475,12 +478,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
+ 	case 'k':
+ 		/* clear the trace bit */
+ 		linux_regs->flags &= ~X86_EFLAGS_TF;
+-		atomic_set(&kgdb_cpu_doing_single_step, -1);
++		atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1);
+ 
+ 		/* set the trace bit if we're stepping */
+ 		if (remcomInBuffer[0] == 's') {
+ 			linux_regs->flags |= X86_EFLAGS_TF;
+-			atomic_set(&kgdb_cpu_doing_single_step,
++			atomic_set_unchecked(&kgdb_cpu_doing_single_step,
+ 				   raw_smp_processor_id());
+ 		}
+ 
+@@ -545,7 +548,7 @@ static int __kgdb_notify(struct die_args *args, unsigned long cmd)
+ 
+ 	switch (cmd) {
+ 	case DIE_DEBUG:
+-		if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
++		if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
+ 			if (user_mode(regs))
+ 				return single_step_cont(regs, args);
+ 			break;
+@@ -750,11 +753,11 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
+ #endif /* CONFIG_DEBUG_RODATA */
+ 
+ 	bpt->type = BP_BREAKPOINT;
+-	err = probe_kernel_read(bpt->saved_instr, (char *)bpt->bpt_addr,
++	err = probe_kernel_read(bpt->saved_instr, ktla_ktva((char *)bpt->bpt_addr),
+ 				BREAK_INSTR_SIZE);
+ 	if (err)
+ 		return err;
+-	err = probe_kernel_write((char *)bpt->bpt_addr,
++	err = probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
+ 				 arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE);
+ #ifdef CONFIG_DEBUG_RODATA
+ 	if (!err)
+@@ -767,7 +770,7 @@ int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
+ 		return -EBUSY;
+ 	text_poke((void *)bpt->bpt_addr, arch_kgdb_ops.gdb_bpt_instr,
+ 		  BREAK_INSTR_SIZE);
+-	err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
++	err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
+ 	if (err)
+ 		return err;
+ 	if (memcmp(opc, arch_kgdb_ops.gdb_bpt_instr, BREAK_INSTR_SIZE))
+@@ -792,13 +795,13 @@ int kgdb_arch_remove_breakpoint(struct kgdb_bkpt *bpt)
+ 	if (mutex_is_locked(&text_mutex))
+ 		goto knl_write;
+ 	text_poke((void *)bpt->bpt_addr, bpt->saved_instr, BREAK_INSTR_SIZE);
+-	err = probe_kernel_read(opc, (char *)bpt->bpt_addr, BREAK_INSTR_SIZE);
++	err = probe_kernel_read(opc, ktla_ktva((char *)bpt->bpt_addr), BREAK_INSTR_SIZE);
+ 	if (err || memcmp(opc, bpt->saved_instr, BREAK_INSTR_SIZE))
+ 		goto knl_write;
+ 	return err;
+ knl_write:
+ #endif /* CONFIG_DEBUG_RODATA */
+-	return probe_kernel_write((char *)bpt->bpt_addr,
++	return probe_kernel_write(ktla_ktva((char *)bpt->bpt_addr),
+ 				  (char *)bpt->saved_instr, BREAK_INSTR_SIZE);
+ }
+ 
+diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
+index a1f5b18..9d9e077 100644
+--- a/arch/x86/kernel/kprobes/core.c
++++ b/arch/x86/kernel/kprobes/core.c
+@@ -119,9 +119,12 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op)
+ 		s32 raddr;
+ 	} __packed *insn;
+ 
+-	insn = (struct __arch_relative_insn *)from;
++	insn = (struct __arch_relative_insn *)ktla_ktva(from);
++
++	pax_open_kernel();
+ 	insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
+ 	insn->op = op;
++	pax_close_kernel();
+ }
+ 
+ /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
+@@ -164,7 +167,7 @@ int __kprobes can_boost(kprobe_opcode_t *opcodes)
+ 	kprobe_opcode_t opcode;
+ 	kprobe_opcode_t *orig_opcodes = opcodes;
+ 
+-	if (search_exception_tables((unsigned long)opcodes))
++	if (search_exception_tables(ktva_ktla((unsigned long)opcodes)))
+ 		return 0;	/* Page fault may occur on this address. */
+ 
+ retry:
+@@ -238,9 +241,9 @@ __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
+ 	 *  for the first byte, we can recover the original instruction
+ 	 *  from it and kp->opcode.
+ 	 */
+-	memcpy(buf, kp->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
++	memcpy(buf, ktla_ktva(kp->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
+ 	buf[0] = kp->opcode;
+-	return (unsigned long)buf;
++	return ktva_ktla((unsigned long)buf);
+ }
+ 
+ /*
+@@ -332,7 +335,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
+ 	/* Another subsystem puts a breakpoint, failed to recover */
+ 	if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
+ 		return 0;
++	pax_open_kernel();
+ 	memcpy(dest, insn.kaddr, insn.length);
++	pax_close_kernel();
+ 
+ #ifdef CONFIG_X86_64
+ 	if (insn_rip_relative(&insn)) {
+@@ -359,7 +364,9 @@ int __kprobes __copy_instruction(u8 *dest, u8 *src)
+ 			return 0;
+ 		}
+ 		disp = (u8 *) dest + insn_offset_displacement(&insn);
++		pax_open_kernel();
+ 		*(s32 *) disp = (s32) newdisp;
++		pax_close_kernel();
+ 	}
+ #endif
+ 	return insn.length;
+@@ -498,7 +505,7 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
+ 		 * nor set current_kprobe, because it doesn't use single
+ 		 * stepping.
+ 		 */
+-		regs->ip = (unsigned long)p->ainsn.insn;
++		regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
+ 		preempt_enable_no_resched();
+ 		return;
+ 	}
+@@ -515,9 +522,9 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
+ 	regs->flags &= ~X86_EFLAGS_IF;
+ 	/* single step inline if the instruction is an int3 */
+ 	if (p->opcode == BREAKPOINT_INSTRUCTION)
+-		regs->ip = (unsigned long)p->addr;
++		regs->ip = ktla_ktva((unsigned long)p->addr);
+ 	else
+-		regs->ip = (unsigned long)p->ainsn.insn;
++		regs->ip = ktva_ktla((unsigned long)p->ainsn.insn);
+ }
+ 
+ /*
+@@ -596,7 +603,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
+ 				setup_singlestep(p, regs, kcb, 0);
+ 			return 1;
+ 		}
+-	} else if (*addr != BREAKPOINT_INSTRUCTION) {
++	} else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) {
+ 		/*
+ 		 * The breakpoint instruction was removed right
+ 		 * after we hit it.  Another cpu has removed
+@@ -642,6 +649,9 @@ static void __used __kprobes kretprobe_trampoline_holder(void)
+ 			"	movq %rax, 152(%rsp)\n"
+ 			RESTORE_REGS_STRING
+ 			"	popfq\n"
++#ifdef KERNEXEC_PLUGIN
++			"	btsq $63,(%rsp)\n"
++#endif
+ #else
+ 			"	pushf\n"
+ 			SAVE_REGS_STRING
+@@ -779,7 +789,7 @@ static void __kprobes
+ resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)
+ {
+ 	unsigned long *tos = stack_addr(regs);
+-	unsigned long copy_ip = (unsigned long)p->ainsn.insn;
++	unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn);
+ 	unsigned long orig_ip = (unsigned long)p->addr;
+ 	kprobe_opcode_t *insn = p->ainsn.insn;
+ 
+@@ -961,7 +971,7 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d
+ 	struct die_args *args = data;
+ 	int ret = NOTIFY_DONE;
+ 
+-	if (args->regs && user_mode_vm(args->regs))
++	if (args->regs && user_mode(args->regs))
+ 		return ret;
+ 
+ 	switch (val) {
+diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
+index 898160b..758cde8 100644
+--- a/arch/x86/kernel/kprobes/opt.c
++++ b/arch/x86/kernel/kprobes/opt.c
+@@ -79,6 +79,7 @@ found:
+ /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */
+ static void __kprobes synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
+ {
++	pax_open_kernel();
+ #ifdef CONFIG_X86_64
+ 	*addr++ = 0x48;
+ 	*addr++ = 0xbf;
+@@ -86,6 +87,7 @@ static void __kprobes synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long v
+ 	*addr++ = 0xb8;
+ #endif
+ 	*(unsigned long *)addr = val;
++	pax_close_kernel();
+ }
+ 
+ asm (
+@@ -335,7 +337,7 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
+ 	 * Verify if the address gap is in 2GB range, because this uses
+ 	 * a relative jump.
+ 	 */
+-	rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
++	rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE;
+ 	if (abs(rel) > 0x7fffffff)
+ 		return -ERANGE;
+ 
+@@ -350,16 +352,18 @@ int __kprobes arch_prepare_optimized_kprobe(struct optimized_kprobe *op)
+ 	op->optinsn.size = ret;
+ 
+ 	/* Copy arch-dep-instance from template */
+-	memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
++	pax_open_kernel();
++	memcpy(buf, ktla_ktva(&optprobe_template_entry), TMPL_END_IDX);
++	pax_close_kernel();
+ 
+ 	/* Set probe information */
+ 	synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
+ 
+ 	/* Set probe function call */
+-	synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
++	synthesize_relcall(ktva_ktla(buf) + TMPL_CALL_IDX, optimized_callback);
+ 
+ 	/* Set returning jmp instruction at the tail of out-of-line buffer */
+-	synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
++	synthesize_reljump(ktva_ktla(buf) + TMPL_END_IDX + op->optinsn.size,
+ 			   (u8 *)op->kp.addr + op->optinsn.size);
+ 
+ 	flush_icache_range((unsigned long) buf,
+@@ -384,7 +388,7 @@ void __kprobes arch_optimize_kprobes(struct list_head *oplist)
+ 		WARN_ON(kprobe_disabled(&op->kp));
+ 
+ 		/* Backup instructions which will be replaced by jump address */
+-		memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
++		memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE,
+ 		       RELATIVE_ADDR_SIZE);
+ 
+ 		insn_buf[0] = RELATIVEJUMP_OPCODE;
+@@ -433,7 +437,7 @@ setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
+ 		/* This kprobe is really able to run optimized path. */
+ 		op = container_of(p, struct optimized_kprobe, kp);
+ 		/* Detour through copied instructions */
+-		regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
++		regs->ip = ktva_ktla((unsigned long)op->optinsn.insn) + TMPL_END_IDX;
+ 		if (!reenter)
+ 			reset_current_kprobe();
+ 		preempt_enable_no_resched();
+diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
+index c2bedae..25e7ab60 100644
+--- a/arch/x86/kernel/ksysfs.c
++++ b/arch/x86/kernel/ksysfs.c
+@@ -184,7 +184,7 @@ out:
+ 
+ static struct kobj_attribute type_attr = __ATTR_RO(type);
+ 
+-static struct bin_attribute data_attr = {
++static bin_attribute_no_const data_attr __read_only = {
+ 	.attr = {
+ 		.name = "data",
+ 		.mode = S_IRUGO,
+diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
+index c37886d..d851d32 100644
+--- a/arch/x86/kernel/ldt.c
++++ b/arch/x86/kernel/ldt.c
+@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)
+ 	if (reload) {
+ #ifdef CONFIG_SMP
+ 		preempt_disable();
+-		load_LDT(pc);
++		load_LDT_nolock(pc);
+ 		if (!cpumask_equal(mm_cpumask(current->mm),
+ 				   cpumask_of(smp_processor_id())))
+ 			smp_call_function(flush_ldt, current->mm, 1);
+ 		preempt_enable();
+ #else
+-		load_LDT(pc);
++		load_LDT_nolock(pc);
+ #endif
+ 	}
+ 	if (oldsize) {
+@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t *new, mm_context_t *old)
+ 		return err;
+ 
+ 	for (i = 0; i < old->size; i++)
+-		write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE);
++		write_ldt_entry(new->ldt, i, old->ldt + i);
+ 	return 0;
+ }
+ 
+@@ -115,6 +115,24 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+ 		retval = copy_ldt(&mm->context, &old_mm->context);
+ 		mutex_unlock(&old_mm->context.lock);
+ 	}
++
++	if (tsk == current) {
++		mm->context.vdso = 0;
++
++#ifdef CONFIG_X86_32
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++		mm->context.user_cs_base = 0UL;
++		mm->context.user_cs_limit = ~0UL;
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP)
++		cpus_clear(mm->context.cpu_user_cs_mask);
++#endif
++
++#endif
++#endif
++
++	}
++
+ 	return retval;
+ }
+ 
+@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
+ 		}
+ 	}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) {
++		error = -EINVAL;
++		goto out_unlock;
++	}
++#endif
++
+ 	if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) {
+ 		error = -EINVAL;
+ 		goto out_unlock;
+diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
+index 1667b1d..16492c5 100644
+--- a/arch/x86/kernel/machine_kexec_32.c
++++ b/arch/x86/kernel/machine_kexec_32.c
+@@ -25,7 +25,7 @@
+ #include <asm/cacheflush.h>
+ #include <asm/debugreg.h>
+ 
+-static void set_idt(void *newidt, __u16 limit)
++static void set_idt(struct desc_struct *newidt, __u16 limit)
+ {
+ 	struct desc_ptr curidt;
+ 
+@@ -37,7 +37,7 @@ static void set_idt(void *newidt, __u16 limit)
+ }
+ 
+ 
+-static void set_gdt(void *newgdt, __u16 limit)
++static void set_gdt(struct desc_struct *newgdt, __u16 limit)
+ {
+ 	struct desc_ptr curgdt;
+ 
+@@ -215,7 +215,7 @@ void machine_kexec(struct kimage *image)
+ 	}
+ 
+ 	control_page = page_address(image->control_code_page);
+-	memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE);
++	memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE);
+ 
+ 	relocate_kernel_ptr = control_page;
+ 	page_list[PA_CONTROL_PAGE] = __pa(control_page);
+diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
+index 18be189..4a9fe40 100644
+--- a/arch/x86/kernel/module.c
++++ b/arch/x86/kernel/module.c
+@@ -43,15 +43,60 @@ do {							\
+ } while (0)
+ #endif
+ 
+-void *module_alloc(unsigned long size)
++static inline void *__module_alloc(unsigned long size, pgprot_t prot)
+ {
+-	if (PAGE_ALIGN(size) > MODULES_LEN)
++	if (!size || PAGE_ALIGN(size) > MODULES_LEN)
+ 		return NULL;
+ 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
+-				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
++				GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, prot,
+ 				NUMA_NO_NODE, __builtin_return_address(0));
+ }
+ 
++void *module_alloc(unsigned long size)
++{
++
++#ifdef CONFIG_PAX_KERNEXEC
++	return __module_alloc(size, PAGE_KERNEL);
++#else
++	return __module_alloc(size, PAGE_KERNEL_EXEC);
++#endif
++
++}
++
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_X86_32
++void *module_alloc_exec(unsigned long size)
++{
++	struct vm_struct *area;
++
++	if (size == 0)
++		return NULL;
++
++	area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END);
++	return area ? area->addr : NULL;
++}
++EXPORT_SYMBOL(module_alloc_exec);
++
++void module_free_exec(struct module *mod, void *module_region)
++{
++	vunmap(module_region);
++}
++EXPORT_SYMBOL(module_free_exec);
++#else
++void module_free_exec(struct module *mod, void *module_region)
++{
++	module_free(mod, module_region);
++}
++EXPORT_SYMBOL(module_free_exec);
++
++void *module_alloc_exec(unsigned long size)
++{
++	return __module_alloc(size, PAGE_KERNEL_RX);
++}
++EXPORT_SYMBOL(module_alloc_exec);
++#endif
++#endif
++
+ #ifdef CONFIG_X86_32
+ int apply_relocate(Elf32_Shdr *sechdrs,
+ 		   const char *strtab,
+@@ -62,14 +107,16 @@ int apply_relocate(Elf32_Shdr *sechdrs,
+ 	unsigned int i;
+ 	Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr;
+ 	Elf32_Sym *sym;
+-	uint32_t *location;
++	uint32_t *plocation, location;
+ 
+ 	DEBUGP("Applying relocate section %u to %u\n",
+ 	       relsec, sechdrs[relsec].sh_info);
+ 	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+ 		/* This is where to make the change */
+-		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+-			+ rel[i].r_offset;
++		plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset;
++		location = (uint32_t)plocation;
++		if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR)
++			plocation = ktla_ktva((void *)plocation);
+ 		/* This is the symbol it is referring to.  Note that all
+ 		   undefined symbols have been resolved.  */
+ 		sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
+@@ -78,11 +125,15 @@ int apply_relocate(Elf32_Shdr *sechdrs,
+ 		switch (ELF32_R_TYPE(rel[i].r_info)) {
+ 		case R_386_32:
+ 			/* We add the value into the location given */
+-			*location += sym->st_value;
++			pax_open_kernel();
++			*plocation += sym->st_value;
++			pax_close_kernel();
+ 			break;
+ 		case R_386_PC32:
+ 			/* Add the value, subtract its position */
+-			*location += sym->st_value - (uint32_t)location;
++			pax_open_kernel();
++			*plocation += sym->st_value - location;
++			pax_close_kernel();
+ 			break;
+ 		default:
+ 			pr_err("%s: Unknown relocation: %u\n",
+@@ -127,21 +178,30 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
+ 		case R_X86_64_NONE:
+ 			break;
+ 		case R_X86_64_64:
++			pax_open_kernel();
+ 			*(u64 *)loc = val;
++			pax_close_kernel();
+ 			break;
+ 		case R_X86_64_32:
++			pax_open_kernel();
+ 			*(u32 *)loc = val;
++			pax_close_kernel();
+ 			if (val != *(u32 *)loc)
+ 				goto overflow;
+ 			break;
+ 		case R_X86_64_32S:
++			pax_open_kernel();
+ 			*(s32 *)loc = val;
++			pax_close_kernel();
+ 			if ((s64)val != *(s32 *)loc)
+ 				goto overflow;
+ 			break;
+ 		case R_X86_64_PC32:
+ 			val -= (u64)loc;
++			pax_open_kernel();
+ 			*(u32 *)loc = val;
++			pax_close_kernel();
++
+ #if 0
+ 			if ((s64)val != *(s32 *)loc)
+ 				goto overflow;
+diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
+index 05266b5..3432443 100644
+--- a/arch/x86/kernel/msr.c
++++ b/arch/x86/kernel/msr.c
+@@ -37,6 +37,7 @@
+ #include <linux/notifier.h>
+ #include <linux/uaccess.h>
+ #include <linux/gfp.h>
++#include <linux/grsecurity.h>
+ 
+ #include <asm/processor.h>
+ #include <asm/msr.h>
+@@ -103,6 +104,11 @@ static ssize_t msr_write(struct file *file, const char __user *buf,
+ 	int err = 0;
+ 	ssize_t bytes = 0;
+ 
++#ifdef CONFIG_GRKERNSEC_KMEM
++	gr_handle_msr_write();
++	return -EPERM;
++#endif
++
+ 	if (count % 8)
+ 		return -EINVAL;	/* Invalid chunk size */
+ 
+@@ -150,6 +156,10 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg)
+ 			err = -EBADF;
+ 			break;
+ 		}
++#ifdef CONFIG_GRKERNSEC_KMEM
++		gr_handle_msr_write();
++		return -EPERM;
++#endif
+ 		if (copy_from_user(&regs, uregs, sizeof regs)) {
+ 			err = -EFAULT;
+ 			break;
+@@ -233,7 +243,7 @@ static int msr_class_cpu_callback(struct notifier_block *nfb,
+ 	return notifier_from_errno(err);
+ }
+ 
+-static struct notifier_block __refdata msr_class_cpu_notifier = {
++static struct notifier_block msr_class_cpu_notifier = {
+ 	.notifier_call = msr_class_cpu_callback,
+ };
+ 
+diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
+index 6fcb49c..5b3f4ff 100644
+--- a/arch/x86/kernel/nmi.c
++++ b/arch/x86/kernel/nmi.c
+@@ -138,7 +138,7 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
+ 	return handled;
+ }
+ 
+-int __register_nmi_handler(unsigned int type, struct nmiaction *action)
++int __register_nmi_handler(unsigned int type, const struct nmiaction *action)
+ {
+ 	struct nmi_desc *desc = nmi_to_desc(type);
+ 	unsigned long flags;
+@@ -162,9 +162,9 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
+ 	 * event confuses some handlers (kdump uses this flag)
+ 	 */
+ 	if (action->flags & NMI_FLAG_FIRST)
+-		list_add_rcu(&action->list, &desc->head);
++		pax_list_add_rcu((struct list_head *)&action->list, &desc->head);
+ 	else
+-		list_add_tail_rcu(&action->list, &desc->head);
++		pax_list_add_tail_rcu((struct list_head *)&action->list, &desc->head);
+ 	
+ 	spin_unlock_irqrestore(&desc->lock, flags);
+ 	return 0;
+@@ -187,7 +187,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
+ 		if (!strcmp(n->name, name)) {
+ 			WARN(in_nmi(),
+ 				"Trying to free NMI (%s) from NMI context!\n", n->name);
+-			list_del_rcu(&n->list);
++			pax_list_del_rcu((struct list_head *)&n->list);
+ 			break;
+ 		}
+ 	}
+@@ -512,6 +512,17 @@ static inline void nmi_nesting_postprocess(void)
+ dotraplinkage notrace __kprobes void
+ do_nmi(struct pt_regs *regs, long error_code)
+ {
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	if (!user_mode(regs)) {
++		unsigned long cs = regs->cs & 0xFFFF;
++		unsigned long ip = ktva_ktla(regs->ip);
++
++		if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext)
++			regs->ip = ip;
++	}
++#endif
++
+ 	nmi_nesting_preprocess(regs);
+ 
+ 	nmi_enter();
+diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
+index 6d9582e..f746287 100644
+--- a/arch/x86/kernel/nmi_selftest.c
++++ b/arch/x86/kernel/nmi_selftest.c
+@@ -43,7 +43,7 @@ static void __init init_nmi_testsuite(void)
+ {
+ 	/* trap all the unknown NMIs we may generate */
+ 	register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
+-			__initdata);
++			__initconst);
+ }
+ 
+ static void __init cleanup_nmi_testsuite(void)
+@@ -66,7 +66,7 @@ static void __init test_nmi_ipi(struct cpumask *mask)
+ 	unsigned long timeout;
+ 
+ 	if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
+-				 NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
++				 NMI_FLAG_FIRST, "nmi_selftest", __initconst)) {
+ 		nmi_fail = FAILURE;
+ 		return;
+ 	}
+diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
+index bbb6c73..24a58ef 100644
+--- a/arch/x86/kernel/paravirt-spinlocks.c
++++ b/arch/x86/kernel/paravirt-spinlocks.c
+@@ -8,7 +8,7 @@
+ 
+ #include <asm/paravirt.h>
+ 
+-struct pv_lock_ops pv_lock_ops = {
++struct pv_lock_ops pv_lock_ops __read_only = {
+ #ifdef CONFIG_SMP
+ 	.lock_spinning = __PV_IS_CALLEE_SAVE(paravirt_nop),
+ 	.unlock_kick = paravirt_nop,
+diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
+index 1b10af8..45bfbec 100644
+--- a/arch/x86/kernel/paravirt.c
++++ b/arch/x86/kernel/paravirt.c
+@@ -55,6 +55,9 @@ u64 _paravirt_ident_64(u64 x)
+ {
+ 	return x;
+ }
++#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
++PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64);
++#endif
+ 
+ void __init default_banner(void)
+ {
+@@ -141,16 +144,20 @@ unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
+ 
+ 	if (opfunc == NULL)
+ 		/* If there's no function, patch it with a ud2a (BUG) */
+-		ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a));
+-	else if (opfunc == _paravirt_nop)
++		ret = paravirt_patch_insns(insnbuf, len, ktva_ktla(ud2a), ud2a+sizeof(ud2a));
++	else if (opfunc == (void *)_paravirt_nop)
+ 		/* If the operation is a nop, then nop the callsite */
+ 		ret = paravirt_patch_nop();
+ 
+ 	/* identity functions just return their single argument */
+-	else if (opfunc == _paravirt_ident_32)
++	else if (opfunc == (void *)_paravirt_ident_32)
+ 		ret = paravirt_patch_ident_32(insnbuf, len);
+-	else if (opfunc == _paravirt_ident_64)
++	else if (opfunc == (void *)_paravirt_ident_64)
+ 		ret = paravirt_patch_ident_64(insnbuf, len);
++#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
++	else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64)
++		ret = paravirt_patch_ident_64(insnbuf, len);
++#endif
+ 
+ 	else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) ||
+ 		 type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) ||
+@@ -175,7 +182,7 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
+ 	if (insn_len > len || start == NULL)
+ 		insn_len = len;
+ 	else
+-		memcpy(insnbuf, start, insn_len);
++		memcpy(insnbuf, ktla_ktva(start), insn_len);
+ 
+ 	return insn_len;
+ }
+@@ -299,7 +306,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
+ 	return this_cpu_read(paravirt_lazy_mode);
+ }
+ 
+-struct pv_info pv_info = {
++struct pv_info pv_info __read_only = {
+ 	.name = "bare hardware",
+ 	.paravirt_enabled = 0,
+ 	.kernel_rpl = 0,
+@@ -310,16 +317,16 @@ struct pv_info pv_info = {
+ #endif
+ };
+ 
+-struct pv_init_ops pv_init_ops = {
++struct pv_init_ops pv_init_ops __read_only = {
+ 	.patch = native_patch,
+ };
+ 
+-struct pv_time_ops pv_time_ops = {
++struct pv_time_ops pv_time_ops __read_only = {
+ 	.sched_clock = native_sched_clock,
+ 	.steal_clock = native_steal_clock,
+ };
+ 
+-__visible struct pv_irq_ops pv_irq_ops = {
++__visible struct pv_irq_ops pv_irq_ops __read_only = {
+ 	.save_fl = __PV_IS_CALLEE_SAVE(native_save_fl),
+ 	.restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl),
+ 	.irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable),
+@@ -331,7 +338,7 @@ __visible struct pv_irq_ops pv_irq_ops = {
+ #endif
+ };
+ 
+-__visible struct pv_cpu_ops pv_cpu_ops = {
++__visible struct pv_cpu_ops pv_cpu_ops __read_only = {
+ 	.cpuid = native_cpuid,
+ 	.get_debugreg = native_get_debugreg,
+ 	.set_debugreg = native_set_debugreg,
+@@ -389,21 +396,26 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
+ 	.end_context_switch = paravirt_nop,
+ };
+ 
+-struct pv_apic_ops pv_apic_ops = {
++struct pv_apic_ops pv_apic_ops __read_only= {
+ #ifdef CONFIG_X86_LOCAL_APIC
+ 	.startup_ipi_hook = paravirt_nop,
+ #endif
+ };
+ 
+-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
++#ifdef CONFIG_X86_32
++#ifdef CONFIG_X86_PAE
++/* 64-bit pagetable entries */
++#define PTE_IDENT	PV_CALLEE_SAVE(_paravirt_ident_64)
++#else
+ /* 32-bit pagetable entries */
+ #define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_32)
++#endif
+ #else
+ /* 64-bit pagetable entries */
+ #define PTE_IDENT	__PV_IS_CALLEE_SAVE(_paravirt_ident_64)
+ #endif
+ 
+-struct pv_mmu_ops pv_mmu_ops = {
++struct pv_mmu_ops pv_mmu_ops __read_only = {
+ 
+ 	.read_cr2 = native_read_cr2,
+ 	.write_cr2 = native_write_cr2,
+@@ -453,6 +465,7 @@ struct pv_mmu_ops pv_mmu_ops = {
+ 	.make_pud = PTE_IDENT,
+ 
+ 	.set_pgd = native_set_pgd,
++	.set_pgd_batched = native_set_pgd_batched,
+ #endif
+ #endif /* PAGETABLE_LEVELS >= 3 */
+ 
+@@ -473,6 +486,12 @@ struct pv_mmu_ops pv_mmu_ops = {
+ 	},
+ 
+ 	.set_fixmap = native_set_fixmap,
++
++#ifdef CONFIG_PAX_KERNEXEC
++	.pax_open_kernel = native_pax_open_kernel,
++	.pax_close_kernel = native_pax_close_kernel,
++#endif
++
+ };
+ 
+ EXPORT_SYMBOL_GPL(pv_time_ops);
+diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
+index a1da673..b6f5831 100644
+--- a/arch/x86/kernel/paravirt_patch_64.c
++++ b/arch/x86/kernel/paravirt_patch_64.c
+@@ -9,7 +9,11 @@ DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
+ DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
+ DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
+ DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
++
++#ifndef CONFIG_PAX_MEMORY_UDEREF
+ DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)");
++#endif
++
+ DEF_NATIVE(pv_cpu_ops, clts, "clts");
+ DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd");
+ 
+@@ -57,7 +61,11 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
+ 		PATCH_SITE(pv_mmu_ops, read_cr3);
+ 		PATCH_SITE(pv_mmu_ops, write_cr3);
+ 		PATCH_SITE(pv_cpu_ops, clts);
++
++#ifndef CONFIG_PAX_MEMORY_UDEREF
+ 		PATCH_SITE(pv_mmu_ops, flush_tlb_single);
++#endif
++
+ 		PATCH_SITE(pv_cpu_ops, wbinvd);
+ 
+ 	patch_site:
+diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
+index 299d493..2ccb0ee 100644
+--- a/arch/x86/kernel/pci-calgary_64.c
++++ b/arch/x86/kernel/pci-calgary_64.c
+@@ -1339,7 +1339,7 @@ static void __init get_tce_space_from_tar(void)
+ 			tce_space = be64_to_cpu(readq(target));
+ 			tce_space = tce_space & TAR_SW_BITS;
+ 
+-			tce_space = tce_space & (~specified_table_size);
++			tce_space = tce_space & (~(unsigned long)specified_table_size);
+ 			info->tce_space = (u64 *)__va(tce_space);
+ 		}
+ 	}
+diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
+index 35ccf75..7a15747 100644
+--- a/arch/x86/kernel/pci-iommu_table.c
++++ b/arch/x86/kernel/pci-iommu_table.c
+@@ -2,7 +2,7 @@
+ #include <asm/iommu_table.h>
+ #include <linux/string.h>
+ #include <linux/kallsyms.h>
+-
++#include <linux/sched.h>
+ 
+ #define DEBUG 1
+ 
+diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
+index 6c483ba..d10ce2f 100644
+--- a/arch/x86/kernel/pci-swiotlb.c
++++ b/arch/x86/kernel/pci-swiotlb.c
+@@ -32,7 +32,7 @@ static void x86_swiotlb_free_coherent(struct device *dev, size_t size,
+ 				      void *vaddr, dma_addr_t dma_addr,
+ 				      struct dma_attrs *attrs)
+ {
+-	swiotlb_free_coherent(dev, size, vaddr, dma_addr);
++	swiotlb_free_coherent(dev, size, vaddr, dma_addr, attrs);
+ }
+ 
+ static struct dma_map_ops swiotlb_dma_ops = {
+diff --git a/arch/x86/kernel/preempt.S b/arch/x86/kernel/preempt.S
+index ca7f0d5..8996469 100644
+--- a/arch/x86/kernel/preempt.S
++++ b/arch/x86/kernel/preempt.S
+@@ -3,12 +3,14 @@
+ #include <asm/dwarf2.h>
+ #include <asm/asm.h>
+ #include <asm/calling.h>
++#include <asm/alternative-asm.h>
+ 
+ ENTRY(___preempt_schedule)
+ 	CFI_STARTPROC
+ 	SAVE_ALL
+ 	call preempt_schedule
+ 	RESTORE_ALL
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ 
+@@ -19,6 +21,7 @@ ENTRY(___preempt_schedule_context)
+ 	SAVE_ALL
+ 	call preempt_schedule_context
+ 	RESTORE_ALL
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ 
+diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
+index 1a1ff42..ea87a2b 100644
+--- a/arch/x86/kernel/process.c
++++ b/arch/x86/kernel/process.c
+@@ -37,7 +37,8 @@
+  * section. Since TSS's are completely CPU-local, we want them
+  * on exact cacheline boundaries, to eliminate cacheline ping-pong.
+  */
+-__visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
++struct tss_struct init_tss[NR_CPUS] __visible ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS };
++EXPORT_SYMBOL(init_tss);
+ 
+ #ifdef CONFIG_X86_64
+ static DEFINE_PER_CPU(unsigned char, is_idle);
+@@ -93,7 +94,7 @@ void arch_task_cache_init(void)
+         task_xstate_cachep =
+         	kmem_cache_create("task_xstate", xstate_size,
+ 				  __alignof__(union thread_xstate),
+-				  SLAB_PANIC | SLAB_NOTRACK, NULL);
++				  SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL);
+ }
+ 
+ /*
+@@ -106,7 +107,7 @@ void exit_thread(void)
+ 	unsigned long *bp = t->io_bitmap_ptr;
+ 
+ 	if (bp) {
+-		struct tss_struct *tss = &per_cpu(init_tss, get_cpu());
++		struct tss_struct *tss = init_tss + get_cpu();
+ 
+ 		t->io_bitmap_ptr = NULL;
+ 		clear_thread_flag(TIF_IO_BITMAP);
+@@ -126,6 +127,9 @@ void flush_thread(void)
+ {
+ 	struct task_struct *tsk = current;
+ 
++#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF)
++	loadsegment(gs, 0);
++#endif
+ 	flush_ptrace_hw_breakpoint(tsk);
+ 	memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));
+ 	drop_init_fpu(tsk);
+@@ -272,7 +276,7 @@ static void __exit_idle(void)
+ void exit_idle(void)
+ {
+ 	/* idle loop has pid 0 */
+-	if (current->pid)
++	if (task_pid_nr(current))
+ 		return;
+ 	__exit_idle();
+ }
+@@ -328,7 +332,7 @@ bool xen_set_default_idle(void)
+ 	return ret;
+ }
+ #endif
+-void stop_this_cpu(void *dummy)
++__noreturn void stop_this_cpu(void *dummy)
+ {
+ 	local_irq_disable();
+ 	/*
+@@ -506,16 +510,37 @@ static int __init idle_setup(char *str)
+ }
+ early_param("idle", idle_setup);
+ 
+-unsigned long arch_align_stack(unsigned long sp)
++#ifdef CONFIG_PAX_RANDKSTACK
++void pax_randomize_kstack(struct pt_regs *regs)
+ {
+-	if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+-		sp -= get_random_int() % 8192;
+-	return sp & ~0xf;
+-}
++	struct thread_struct *thread = &current->thread;
++	unsigned long time;
+ 
+-unsigned long arch_randomize_brk(struct mm_struct *mm)
+-{
+-	unsigned long range_end = mm->brk + 0x02000000;
+-	return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
+-}
++	if (!randomize_va_space)
++		return;
++
++	if (v8086_mode(regs))
++		return;
+ 
++	rdtscl(time);
++
++	/* P4 seems to return a 0 LSB, ignore it */
++#ifdef CONFIG_MPENTIUM4
++	time &= 0x3EUL;
++	time <<= 2;
++#elif defined(CONFIG_X86_64)
++	time &= 0xFUL;
++	time <<= 4;
++#else
++	time &= 0x1FUL;
++	time <<= 3;
++#endif
++
++	thread->sp0 ^= time;
++	load_sp0(init_tss + smp_processor_id(), thread);
++
++#ifdef CONFIG_X86_64
++	this_cpu_write(kernel_stack, thread->sp0);
++#endif
++}
++#endif
+diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
+index 0de43e9..b0211fe 100644
+--- a/arch/x86/kernel/process_32.c
++++ b/arch/x86/kernel/process_32.c
+@@ -64,6 +64,7 @@ asmlinkage void ret_from_kernel_thread(void) __asm__("ret_from_kernel_thread");
+ unsigned long thread_saved_pc(struct task_struct *tsk)
+ {
+ 	return ((unsigned long *)tsk->thread.sp)[3];
++//XXX	return tsk->thread.eip;
+ }
+ 
+ void __show_regs(struct pt_regs *regs, int all)
+@@ -73,19 +74,18 @@ void __show_regs(struct pt_regs *regs, int all)
+ 	unsigned long sp;
+ 	unsigned short ss, gs;
+ 
+-	if (user_mode_vm(regs)) {
++	if (user_mode(regs)) {
+ 		sp = regs->sp;
+ 		ss = regs->ss & 0xffff;
+-		gs = get_user_gs(regs);
+ 	} else {
+ 		sp = kernel_stack_pointer(regs);
+ 		savesegment(ss, ss);
+-		savesegment(gs, gs);
+ 	}
++	gs = get_user_gs(regs);
+ 
+ 	printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
+ 			(u16)regs->cs, regs->ip, regs->flags,
+-			smp_processor_id());
++			raw_smp_processor_id());
+ 	print_symbol("EIP is at %s\n", regs->ip);
+ 
+ 	printk(KERN_DEFAULT "EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
+@@ -132,20 +132,21 @@ void release_thread(struct task_struct *dead_task)
+ int copy_thread(unsigned long clone_flags, unsigned long sp,
+ 	unsigned long arg, struct task_struct *p)
+ {
+-	struct pt_regs *childregs = task_pt_regs(p);
++	struct pt_regs *childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8;
+ 	struct task_struct *tsk;
+ 	int err;
+ 
+ 	p->thread.sp = (unsigned long) childregs;
+ 	p->thread.sp0 = (unsigned long) (childregs+1);
++	p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
+ 
+ 	if (unlikely(p->flags & PF_KTHREAD)) {
+ 		/* kernel thread */
+ 		memset(childregs, 0, sizeof(struct pt_regs));
+ 		p->thread.ip = (unsigned long) ret_from_kernel_thread;
+-		task_user_gs(p) = __KERNEL_STACK_CANARY;
+-		childregs->ds = __USER_DS;
+-		childregs->es = __USER_DS;
++		savesegment(gs, childregs->gs);
++		childregs->ds = __KERNEL_DS;
++		childregs->es = __KERNEL_DS;
+ 		childregs->fs = __KERNEL_PERCPU;
+ 		childregs->bx = sp;	/* function */
+ 		childregs->bp = arg;
+@@ -252,7 +253,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	struct thread_struct *prev = &prev_p->thread,
+ 				 *next = &next_p->thread;
+ 	int cpu = smp_processor_id();
+-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
++	struct tss_struct *tss = init_tss + cpu;
+ 	fpu_switch_t fpu;
+ 
+ 	/* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
+@@ -276,6 +277,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	 */
+ 	lazy_save_gs(prev->gs);
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	__set_fs(task_thread_info(next_p)->addr_limit);
++#endif
++
+ 	/*
+ 	 * Load the per-thread Thread-Local Storage descriptor.
+ 	 */
+@@ -314,6 +319,9 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	 */
+ 	arch_end_context_switch(next_p);
+ 
++	this_cpu_write(current_task, next_p);
++	this_cpu_write(current_tinfo, &next_p->tinfo);
++
+ 	/*
+ 	 * Restore %gs if needed (which is common)
+ 	 */
+@@ -322,8 +330,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 
+ 	switch_fpu_finish(next_p, fpu);
+ 
+-	this_cpu_write(current_task, next_p);
+-
+ 	return prev_p;
+ }
+ 
+@@ -353,4 +359,3 @@ unsigned long get_wchan(struct task_struct *p)
+ 	} while (count++ < 16);
+ 	return 0;
+ }
+-
+diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
+index e2d26ce..d49eb67 100644
+--- a/arch/x86/kernel/process_64.c
++++ b/arch/x86/kernel/process_64.c
+@@ -158,10 +158,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
+ 	struct pt_regs *childregs;
+ 	struct task_struct *me = current;
+ 
+-	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
++	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE - 16;
+ 	childregs = task_pt_regs(p);
+ 	p->thread.sp = (unsigned long) childregs;
+ 	p->thread.usersp = me->thread.usersp;
++	p->tinfo.lowest_stack = (unsigned long)task_stack_page(p) + 2 * sizeof(unsigned long);
+ 	set_tsk_thread_flag(p, TIF_FORK);
+ 	p->thread.fpu_counter = 0;
+ 	p->thread.io_bitmap_ptr = NULL;
+@@ -172,6 +173,8 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
+ 	p->thread.fs = p->thread.fsindex ? 0 : me->thread.fs;
+ 	savesegment(es, p->thread.es);
+ 	savesegment(ds, p->thread.ds);
++	savesegment(ss, p->thread.ss);
++	BUG_ON(p->thread.ss == __UDEREF_KERNEL_DS);
+ 	memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
+ 
+ 	if (unlikely(p->flags & PF_KTHREAD)) {
+@@ -280,7 +283,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	struct thread_struct *prev = &prev_p->thread;
+ 	struct thread_struct *next = &next_p->thread;
+ 	int cpu = smp_processor_id();
+-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
++	struct tss_struct *tss = init_tss + cpu;
+ 	unsigned fsindex, gsindex;
+ 	fpu_switch_t fpu;
+ 
+@@ -334,6 +337,10 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	if (unlikely(next->ds | prev->ds))
+ 		loadsegment(ds, next->ds);
+ 
++	savesegment(ss, prev->ss);
++	if (unlikely(next->ss != prev->ss))
++		loadsegment(ss, next->ss);
++
+ 	/*
+ 	 * Switch FS and GS.
+ 	 *
+@@ -407,6 +414,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	prev->usersp = this_cpu_read(old_rsp);
+ 	this_cpu_write(old_rsp, next->usersp);
+ 	this_cpu_write(current_task, next_p);
++	this_cpu_write(current_tinfo, &next_p->tinfo);
+ 
+ 	/*
+ 	 * If it were not for PREEMPT_ACTIVE we could guarantee that the
+@@ -416,9 +424,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+ 	task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
+ 	this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
+ 
+-	this_cpu_write(kernel_stack,
+-		  (unsigned long)task_stack_page(next_p) +
+-		  THREAD_SIZE - KERNEL_STACK_OFFSET);
++	this_cpu_write(kernel_stack, next->sp0);
+ 
+ 	/*
+ 	 * Now maybe reload the debug registers and handle I/O bitmaps
+@@ -487,12 +493,11 @@ unsigned long get_wchan(struct task_struct *p)
+ 	if (!p || p == current || p->state == TASK_RUNNING)
+ 		return 0;
+ 	stack = (unsigned long)task_stack_page(p);
+-	if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE)
++	if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64))
+ 		return 0;
+ 	fp = *(u64 *)(p->thread.sp);
+ 	do {
+-		if (fp < (unsigned long)stack ||
+-		    fp >= (unsigned long)stack+THREAD_SIZE)
++		if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64))
+ 			return 0;
+ 		ip = *(u64 *)(fp+8);
+ 		if (!in_sched_functions(ip))
+diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
+index 0686fe3..836eed3 100644
+--- a/arch/x86/kernel/ptrace.c
++++ b/arch/x86/kernel/ptrace.c
+@@ -184,14 +184,13 @@ unsigned long kernel_stack_pointer(struct pt_regs *regs)
+ {
+ 	unsigned long context = (unsigned long)regs & ~(THREAD_SIZE - 1);
+ 	unsigned long sp = (unsigned long)&regs->sp;
+-	struct thread_info *tinfo;
+ 
+-	if (context == (sp & ~(THREAD_SIZE - 1)))
++	if (context == ((sp + 8) & ~(THREAD_SIZE - 1)))
+ 		return sp;
+ 
+-	tinfo = (struct thread_info *)context;
+-	if (tinfo->previous_esp)
+-		return tinfo->previous_esp;
++	sp = *(unsigned long *)context;
++	if (sp)
++		return sp;
+ 
+ 	return (unsigned long)regs;
+ }
+@@ -452,6 +451,20 @@ static int putreg(struct task_struct *child,
+ 		if (child->thread.gs != value)
+ 			return do_arch_prctl(child, ARCH_SET_GS, value);
+ 		return 0;
++
++	case offsetof(struct user_regs_struct,ip):
++		/*
++		 * Protect against any attempt to set ip to an
++		 * impossible address.  There are dragons lurking if the
++		 * address is noncanonical.  (This explicitly allows
++		 * setting ip to TASK_SIZE_MAX, because user code can do
++		 * that all by itself by running off the end of its
++		 * address space.
++		 */
++		if (value > TASK_SIZE_MAX)
++			return -EIO;
++		break;
++
+ #endif
+ 	}
+ 
+@@ -588,7 +601,7 @@ static void ptrace_triggered(struct perf_event *bp,
+ static unsigned long ptrace_get_dr7(struct perf_event *bp[])
+ {
+ 	int i;
+-	int dr7 = 0;
++	unsigned long dr7 = 0;
+ 	struct arch_hw_breakpoint *info;
+ 
+ 	for (i = 0; i < HBP_NUM; i++) {
+@@ -822,7 +835,7 @@ long arch_ptrace(struct task_struct *child, long request,
+ 		 unsigned long addr, unsigned long data)
+ {
+ 	int ret;
+-	unsigned long __user *datap = (unsigned long __user *)data;
++	unsigned long __user *datap = (__force unsigned long __user *)data;
+ 
+ 	switch (request) {
+ 	/* read the word at location addr in the USER area. */
+@@ -907,14 +920,14 @@ long arch_ptrace(struct task_struct *child, long request,
+ 		if ((int) addr < 0)
+ 			return -EIO;
+ 		ret = do_get_thread_area(child, addr,
+-					(struct user_desc __user *)data);
++					(__force struct user_desc __user *) data);
+ 		break;
+ 
+ 	case PTRACE_SET_THREAD_AREA:
+ 		if ((int) addr < 0)
+ 			return -EIO;
+ 		ret = do_set_thread_area(child, addr,
+-					(struct user_desc __user *)data, 0);
++					(__force struct user_desc __user *) data, 0);
+ 		break;
+ #endif
+ 
+@@ -1292,7 +1305,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+ 
+ #ifdef CONFIG_X86_64
+ 
+-static struct user_regset x86_64_regsets[] __read_mostly = {
++static user_regset_no_const x86_64_regsets[] __read_only = {
+ 	[REGSET_GENERAL] = {
+ 		.core_note_type = NT_PRSTATUS,
+ 		.n = sizeof(struct user_regs_struct) / sizeof(long),
+@@ -1333,7 +1346,7 @@ static const struct user_regset_view user_x86_64_view = {
+ #endif	/* CONFIG_X86_64 */
+ 
+ #if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
+-static struct user_regset x86_32_regsets[] __read_mostly = {
++static user_regset_no_const x86_32_regsets[] __read_only = {
+ 	[REGSET_GENERAL] = {
+ 		.core_note_type = NT_PRSTATUS,
+ 		.n = sizeof(struct user_regs_struct32) / sizeof(u32),
+@@ -1386,7 +1399,7 @@ static const struct user_regset_view user_x86_32_view = {
+  */
+ u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
+ 
+-void update_regset_xstate_info(unsigned int size, u64 xstate_mask)
++void __init update_regset_xstate_info(unsigned int size, u64 xstate_mask)
+ {
+ #ifdef CONFIG_X86_64
+ 	x86_64_regsets[REGSET_XSTATE].n = size / sizeof(u64);
+@@ -1421,7 +1434,7 @@ static void fill_sigtrap_info(struct task_struct *tsk,
+ 	memset(info, 0, sizeof(*info));
+ 	info->si_signo = SIGTRAP;
+ 	info->si_code = si_code;
+-	info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL;
++	info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL;
+ }
+ 
+ void user_single_step_siginfo(struct task_struct *tsk,
+@@ -1441,6 +1454,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
+ 	force_sig_info(SIGTRAP, &info, tsk);
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ /*
+  * We must return the syscall number to actually look up in the table.
+  * This can be -1L to skip running any syscall at all.
+@@ -1451,6 +1468,11 @@ long syscall_trace_enter(struct pt_regs *regs)
+ 
+ 	user_exit();
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	/*
+ 	 * If we stepped into a sysenter/syscall insn, it trapped in
+ 	 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
+@@ -1506,6 +1528,11 @@ void syscall_trace_leave(struct pt_regs *regs)
+ 	 */
+ 	user_exit();
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	audit_syscall_exit(regs);
+ 
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
+index 2f355d2..e75ed0a 100644
+--- a/arch/x86/kernel/pvclock.c
++++ b/arch/x86/kernel/pvclock.c
+@@ -51,11 +51,11 @@ void pvclock_touch_watchdogs(void)
+ 	reset_hung_task_detector();
+ }
+ 
+-static atomic64_t last_value = ATOMIC64_INIT(0);
++static atomic64_unchecked_t last_value = ATOMIC64_INIT(0);
+ 
+ void pvclock_resume(void)
+ {
+-	atomic64_set(&last_value, 0);
++	atomic64_set_unchecked(&last_value, 0);
+ }
+ 
+ u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src)
+@@ -105,11 +105,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
+ 	 * updating at the same time, and one of them could be slightly behind,
+ 	 * making the assumption that last_value always go forward fail to hold.
+ 	 */
+-	last = atomic64_read(&last_value);
++	last = atomic64_read_unchecked(&last_value);
+ 	do {
+ 		if (ret < last)
+ 			return last;
+-		last = atomic64_cmpxchg(&last_value, last, ret);
++		last = atomic64_cmpxchg_unchecked(&last_value, last, ret);
+ 	} while (unlikely(last != ret));
+ 
+ 	return ret;
+diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
+index a6aa91f..257fea9 100644
+--- a/arch/x86/kernel/reboot.c
++++ b/arch/x86/kernel/reboot.c
+@@ -68,6 +68,11 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
+ 
+ void __noreturn machine_real_restart(unsigned int type)
+ {
++
++#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF))
++	struct desc_struct *gdt;
++#endif
++
+ 	local_irq_disable();
+ 
+ 	/*
+@@ -95,7 +100,29 @@ void __noreturn machine_real_restart(unsigned int type)
+ 
+ 	/* Jump to the identity-mapped low memory code */
+ #ifdef CONFIG_X86_32
+-	asm volatile("jmpl *%0" : :
++
++#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)
++	gdt = get_cpu_gdt_table(smp_processor_id());
++	pax_open_kernel();
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	gdt[GDT_ENTRY_KERNEL_DS].type = 3;
++	gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
++	loadsegment(ds, __KERNEL_DS);
++	loadsegment(es, __KERNEL_DS);
++	loadsegment(ss, __KERNEL_DS);
++#endif
++#ifdef CONFIG_PAX_KERNEXEC
++	gdt[GDT_ENTRY_KERNEL_CS].base0 = 0;
++	gdt[GDT_ENTRY_KERNEL_CS].base1 = 0;
++	gdt[GDT_ENTRY_KERNEL_CS].base2 = 0;
++	gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff;
++	gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf;
++	gdt[GDT_ENTRY_KERNEL_CS].g = 1;
++#endif
++	pax_close_kernel();
++#endif
++
++	asm volatile("ljmpl *%0" : :
+ 		     "rm" (real_mode_header->machine_real_restart_asm),
+ 		     "a" (type));
+ #else
+@@ -135,7 +162,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
+ /*
+  * This is a single dmi_table handling all reboot quirks.
+  */
+-static struct dmi_system_id __initdata reboot_dmi_table[] = {
++static const struct dmi_system_id __initconst reboot_dmi_table[] = {
+ 
+ 	/* Acer */
+ 	{	/* Handle reboot issue on Acer Aspire one */
+@@ -480,7 +507,7 @@ void __attribute__((weak)) mach_reboot_fixups(void)
+  * try to force a triple fault and then cycle between hitting the keyboard
+  * controller and doing that
+  */
+-static void native_machine_emergency_restart(void)
++static void __noreturn native_machine_emergency_restart(void)
+ {
+ 	int i;
+ 	int attempt = 0;
+@@ -603,13 +630,13 @@ void native_machine_shutdown(void)
+ #endif
+ }
+ 
+-static void __machine_emergency_restart(int emergency)
++static void __noreturn __machine_emergency_restart(int emergency)
+ {
+ 	reboot_emergency = emergency;
+ 	machine_ops.emergency_restart();
+ }
+ 
+-static void native_machine_restart(char *__unused)
++static void __noreturn native_machine_restart(char *__unused)
+ {
+ 	pr_notice("machine restart\n");
+ 
+@@ -618,7 +645,7 @@ static void native_machine_restart(char *__unused)
+ 	__machine_emergency_restart(0);
+ }
+ 
+-static void native_machine_halt(void)
++static void __noreturn native_machine_halt(void)
+ {
+ 	/* Stop other cpus and apics */
+ 	machine_shutdown();
+@@ -628,7 +655,7 @@ static void native_machine_halt(void)
+ 	stop_this_cpu(NULL);
+ }
+ 
+-static void native_machine_power_off(void)
++static void __noreturn native_machine_power_off(void)
+ {
+ 	if (pm_power_off) {
+ 		if (!reboot_force)
+@@ -637,9 +664,10 @@ static void native_machine_power_off(void)
+ 	}
+ 	/* A fallback in case there is no PM info available */
+ 	tboot_shutdown(TB_SHUTDOWN_HALT);
++	unreachable();
+ }
+ 
+-struct machine_ops machine_ops = {
++struct machine_ops machine_ops __read_only = {
+ 	.power_off = native_machine_power_off,
+ 	.shutdown = native_machine_shutdown,
+ 	.emergency_restart = native_machine_emergency_restart,
+diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
+index c8e41e9..64049ef 100644
+--- a/arch/x86/kernel/reboot_fixups_32.c
++++ b/arch/x86/kernel/reboot_fixups_32.c
+@@ -57,7 +57,7 @@ struct device_fixup {
+ 	unsigned int vendor;
+ 	unsigned int device;
+ 	void (*reboot_fixup)(struct pci_dev *);
+-};
++} __do_const;
+ 
+ /*
+  * PCI ids solely used for fixups_table go here
+diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
+index 3fd2c69..a444264 100644
+--- a/arch/x86/kernel/relocate_kernel_64.S
++++ b/arch/x86/kernel/relocate_kernel_64.S
+@@ -96,8 +96,7 @@ relocate_kernel:
+ 
+ 	/* jump to identity mapped page */
+ 	addq	$(identity_mapped - relocate_kernel), %r8
+-	pushq	%r8
+-	ret
++	jmp	*%r8
+ 
+ identity_mapped:
+ 	/* set return address to 0 if not preserving context */
+diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
+index ce72964..be8aea7 100644
+--- a/arch/x86/kernel/setup.c
++++ b/arch/x86/kernel/setup.c
+@@ -110,6 +110,7 @@
+ #include <asm/mce.h>
+ #include <asm/alternative.h>
+ #include <asm/prom.h>
++#include <asm/boot.h>
+ 
+ /*
+  * max_low_pfn_mapped: highest direct mapped pfn under 4GB
+@@ -205,12 +206,50 @@ EXPORT_SYMBOL(boot_cpu_data);
+ #endif
+ 
+ 
+-#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
+-__visible unsigned long mmu_cr4_features;
++#ifdef CONFIG_X86_64
++__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE;
++#elif defined(CONFIG_X86_PAE)
++__visible unsigned long mmu_cr4_features __read_only = X86_CR4_PAE;
+ #else
+-__visible unsigned long mmu_cr4_features = X86_CR4_PAE;
++__visible unsigned long mmu_cr4_features __read_only;
+ #endif
+ 
++void set_in_cr4(unsigned long mask)
++{
++	unsigned long cr4 = read_cr4();
++
++	if ((cr4 & mask) == mask && cr4 == mmu_cr4_features)
++		return;
++
++	pax_open_kernel();
++	mmu_cr4_features |= mask;
++	pax_close_kernel();
++
++	if (trampoline_cr4_features)
++		*trampoline_cr4_features = mmu_cr4_features;
++	cr4 |= mask;
++	write_cr4(cr4);
++}
++EXPORT_SYMBOL(set_in_cr4);
++
++void clear_in_cr4(unsigned long mask)
++{
++	unsigned long cr4 = read_cr4();
++
++	if (!(cr4 & mask) && cr4 == mmu_cr4_features)
++		return;
++
++	pax_open_kernel();
++	mmu_cr4_features &= ~mask;
++	pax_close_kernel();
++
++	if (trampoline_cr4_features)
++		*trampoline_cr4_features = mmu_cr4_features;
++	cr4 &= ~mask;
++	write_cr4(cr4);
++}
++EXPORT_SYMBOL(clear_in_cr4);
++
+ /* Boot loader ID and version as integers, for the benefit of proc_dointvec */
+ int bootloader_type, bootloader_version;
+ 
+@@ -772,7 +811,7 @@ static void __init trim_bios_range(void)
+ 	 * area (640->1Mb) as ram even though it is not.
+ 	 * take them out.
+ 	 */
+-	e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
++	e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1);
+ 
+ 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ }
+@@ -780,7 +819,7 @@ static void __init trim_bios_range(void)
+ /* called before trim_bios_range() to spare extra sanitize */
+ static void __init e820_add_kernel_range(void)
+ {
+-	u64 start = __pa_symbol(_text);
++	u64 start = __pa_symbol(ktla_ktva(_text));
+ 	u64 size = __pa_symbol(_end) - start;
+ 
+ 	/*
+@@ -856,8 +895,12 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
+ 
+ void __init setup_arch(char **cmdline_p)
+ {
++#ifdef CONFIG_X86_32
++	memblock_reserve(LOAD_PHYSICAL_ADDR, __pa_symbol(__bss_stop) - LOAD_PHYSICAL_ADDR);
++#else
+ 	memblock_reserve(__pa_symbol(_text),
+ 			 (unsigned long)__bss_stop - (unsigned long)_text);
++#endif
+ 
+ 	early_reserve_initrd();
+ 
+@@ -947,14 +990,14 @@ void __init setup_arch(char **cmdline_p)
+ 
+ 	if (!boot_params.hdr.root_flags)
+ 		root_mountflags &= ~MS_RDONLY;
+-	init_mm.start_code = (unsigned long) _text;
+-	init_mm.end_code = (unsigned long) _etext;
++	init_mm.start_code = ktla_ktva((unsigned long) _text);
++	init_mm.end_code = ktla_ktva((unsigned long) _etext);
+ 	init_mm.end_data = (unsigned long) _edata;
+ 	init_mm.brk = _brk_end;
+ 
+-	code_resource.start = __pa_symbol(_text);
+-	code_resource.end = __pa_symbol(_etext)-1;
+-	data_resource.start = __pa_symbol(_etext);
++	code_resource.start = __pa_symbol(ktla_ktva(_text));
++	code_resource.end = __pa_symbol(ktla_ktva(_etext))-1;
++	data_resource.start = __pa_symbol(_sdata);
+ 	data_resource.end = __pa_symbol(_edata)-1;
+ 	bss_resource.start = __pa_symbol(__bss_start);
+ 	bss_resource.end = __pa_symbol(__bss_stop)-1;
+diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
+index 5cdff03..80fa283 100644
+--- a/arch/x86/kernel/setup_percpu.c
++++ b/arch/x86/kernel/setup_percpu.c
+@@ -21,19 +21,17 @@
+ #include <asm/cpu.h>
+ #include <asm/stackprotector.h>
+ 
+-DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
++#ifdef CONFIG_SMP
++DEFINE_PER_CPU_READ_MOSTLY(unsigned int, cpu_number);
+ EXPORT_PER_CPU_SYMBOL(cpu_number);
++#endif
+ 
+-#ifdef CONFIG_X86_64
+ #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
+-#else
+-#define BOOT_PERCPU_OFFSET 0
+-#endif
+ 
+ DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
+ EXPORT_PER_CPU_SYMBOL(this_cpu_off);
+ 
+-unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = {
++unsigned long __per_cpu_offset[NR_CPUS] __read_only = {
+ 	[0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
+ };
+ EXPORT_SYMBOL(__per_cpu_offset);
+@@ -66,7 +64,7 @@ static bool __init pcpu_need_numa(void)
+ {
+ #ifdef CONFIG_NEED_MULTIPLE_NODES
+ 	pg_data_t *last = NULL;
+-	unsigned int cpu;
++	int cpu;
+ 
+ 	for_each_possible_cpu(cpu) {
+ 		int node = early_cpu_to_node(cpu);
+@@ -155,10 +153,10 @@ static inline void setup_percpu_segment(int cpu)
+ {
+ #ifdef CONFIG_X86_32
+ 	struct desc_struct gdt;
++	unsigned long base = per_cpu_offset(cpu);
+ 
+-	pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
+-			0x2 | DESCTYPE_S, 0x8);
+-	gdt.s = 1;
++	pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT,
++			0x83 | DESCTYPE_S, 0xC);
+ 	write_gdt_entry(get_cpu_gdt_table(cpu),
+ 			GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
+ #endif
+@@ -219,6 +217,11 @@ void __init setup_per_cpu_areas(void)
+ 	/* alrighty, percpu areas up and running */
+ 	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
+ 	for_each_possible_cpu(cpu) {
++#ifdef CONFIG_CC_STACKPROTECTOR
++#ifdef CONFIG_X86_32
++		unsigned long canary = per_cpu(stack_canary.canary, cpu);
++#endif
++#endif
+ 		per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
+ 		per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
+ 		per_cpu(cpu_number, cpu) = cpu;
+@@ -259,6 +262,12 @@ void __init setup_per_cpu_areas(void)
+ 		 */
+ 		set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
+ #endif
++#ifdef CONFIG_CC_STACKPROTECTOR
++#ifdef CONFIG_X86_32
++		if (!cpu)
++			per_cpu(stack_canary.canary, cpu) = canary;
++#endif
++#endif
+ 		/*
+ 		 * Up to this point, the boot CPU has been using .init.data
+ 		 * area.  Reload any changed state for the boot CPU.
+diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
+index b88fc86..99a7057 100644
+--- a/arch/x86/kernel/signal.c
++++ b/arch/x86/kernel/signal.c
+@@ -190,7 +190,7 @@ static unsigned long align_sigframe(unsigned long sp)
+ 	 * Align the stack pointer according to the i386 ABI,
+ 	 * i.e. so that on function entry ((sp + 4) & 15) == 0.
+ 	 */
+-	sp = ((sp + 4) & -16ul) - 4;
++	sp = ((sp - 12) & -16ul) - 4;
+ #else /* !CONFIG_X86_32 */
+ 	sp = round_down(sp, 16) - 8;
+ #endif
+@@ -298,9 +298,9 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
+ 	}
+ 
+ 	if (current->mm->context.vdso)
+-		restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
++		restorer = (void __force_user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn);
+ 	else
+-		restorer = &frame->retcode;
++		restorer = (void __user *)&frame->retcode;
+ 	if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ 		restorer = ksig->ka.sa.sa_restorer;
+ 
+@@ -314,7 +314,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set,
+ 	 * reasons and because gdb uses it as a signature to notice
+ 	 * signal handler stack frames.
+ 	 */
+-	err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode);
++	err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode);
+ 
+ 	if (err)
+ 		return -EFAULT;
+@@ -361,7 +361,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
+ 		save_altstack_ex(&frame->uc.uc_stack, regs->sp);
+ 
+ 		/* Set up to return from userspace.  */
+-		restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
++		if (current->mm->context.vdso)
++			restorer = (void __force_user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn);
++		else
++			restorer = (void __user *)&frame->retcode;
+ 		if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ 			restorer = ksig->ka.sa.sa_restorer;
+ 		put_user_ex(restorer, &frame->pretcode);
+@@ -373,7 +376,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig,
+ 		 * reasons and because gdb uses it as a signature to notice
+ 		 * signal handler stack frames.
+ 		 */
+-		put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode);
++		put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode);
+ 	} put_user_catch(err);
+ 	
+ 	err |= copy_siginfo_to_user(&frame->info, &ksig->info);
+@@ -609,7 +612,12 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
+ {
+ 	int usig = signr_convert(ksig->sig);
+ 	sigset_t *set = sigmask_to_save();
+-	compat_sigset_t *cset = (compat_sigset_t *) set;
++	sigset_t sigcopy;
++	compat_sigset_t *cset;
++
++	sigcopy = *set;
++
++	cset = (compat_sigset_t *) &sigcopy;
+ 
+ 	/* Set up the stack frame */
+ 	if (is_ia32_frame()) {
+@@ -620,7 +628,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs)
+ 	} else if (is_x32_frame()) {
+ 		return x32_setup_rt_frame(ksig, cset, regs);
+ 	} else {
+-		return __setup_rt_frame(ksig->sig, ksig, set, regs);
++		return __setup_rt_frame(ksig->sig, ksig, &sigcopy, regs);
+ 	}
+ }
+ 
+diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
+index 7c3a5a6..f0a8961 100644
+--- a/arch/x86/kernel/smp.c
++++ b/arch/x86/kernel/smp.c
+@@ -341,7 +341,7 @@ static int __init nonmi_ipi_setup(char *str)
+ 
+ __setup("nonmi_ipi", nonmi_ipi_setup);
+ 
+-struct smp_ops smp_ops = {
++struct smp_ops smp_ops __read_only = {
+ 	.smp_prepare_boot_cpu	= native_smp_prepare_boot_cpu,
+ 	.smp_prepare_cpus	= native_smp_prepare_cpus,
+ 	.smp_cpus_done		= native_smp_cpus_done,
+diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
+index 68287653..3597685 100644
+--- a/arch/x86/kernel/smpboot.c
++++ b/arch/x86/kernel/smpboot.c
+@@ -229,14 +229,17 @@ static void notrace start_secondary(void *unused)
+ 
+ 	enable_start_cpu0 = 0;
+ 
+-#ifdef CONFIG_X86_32
++	/* otherwise gcc will move up smp_processor_id before the cpu_init */
++	barrier();
++
+ 	/* switch away from the initial page table */
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
++#else
+ 	load_cr3(swapper_pg_dir);
++#endif
+ 	__flush_tlb_all();
+-#endif
+ 
+-	/* otherwise gcc will move up smp_processor_id before the cpu_init */
+-	barrier();
+ 	/*
+ 	 * Check TSC synchronization with the BP:
+ 	 */
+@@ -756,8 +759,9 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
+ 	alternatives_enable_smp();
+ 
+ 	idle->thread.sp = (unsigned long) (((struct pt_regs *)
+-			  (THREAD_SIZE +  task_stack_page(idle))) - 1);
++			  (THREAD_SIZE - 16 + task_stack_page(idle))) - 1);
+ 	per_cpu(current_task, cpu) = idle;
++	per_cpu(current_tinfo, cpu) = &idle->tinfo;
+ 
+ #ifdef CONFIG_X86_32
+ 	/* Stack for startup_32 can be just as for start_secondary onwards */
+@@ -765,11 +769,13 @@ static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
+ #else
+ 	clear_tsk_thread_flag(idle, TIF_FORK);
+ 	initial_gs = per_cpu_offset(cpu);
+-	per_cpu(kernel_stack, cpu) =
+-		(unsigned long)task_stack_page(idle) -
+-		KERNEL_STACK_OFFSET + THREAD_SIZE;
++	per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
+ #endif
++
++	pax_open_kernel();
+ 	early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
++	pax_close_kernel();
++
+ 	initial_code = (unsigned long)start_secondary;
+ 	stack_start  = idle->thread.sp;
+ 
+@@ -918,6 +924,15 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
+ 	/* the FPU context is blank, nobody can own it */
+ 	__cpu_disable_lazy_restore(cpu);
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	clone_pgd_range(get_cpu_pgd(cpu, kernel) + KERNEL_PGD_BOUNDARY,
++			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
++			KERNEL_PGD_PTRS);
++	clone_pgd_range(get_cpu_pgd(cpu, user) + KERNEL_PGD_BOUNDARY,
++			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
++			KERNEL_PGD_PTRS);
++#endif
++
+ 	err = do_boot_cpu(apicid, cpu, tidle);
+ 	if (err) {
+ 		pr_debug("do_boot_cpu failed %d\n", err);
+diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
+index 9b4d51d..5d28b58 100644
+--- a/arch/x86/kernel/step.c
++++ b/arch/x86/kernel/step.c
+@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
+ 		struct desc_struct *desc;
+ 		unsigned long base;
+ 
+-		seg &= ~7UL;
++		seg >>= 3;
+ 
+ 		mutex_lock(&child->mm->context.lock);
+-		if (unlikely((seg >> 3) >= child->mm->context.size))
++		if (unlikely(seg >= child->mm->context.size))
+ 			addr = -1L; /* bogus selector, access would fault */
+ 		else {
+ 			desc = child->mm->context.ldt + seg;
+@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struct task_struct *child, struct pt_regs *re
+ 			addr += base;
+ 		}
+ 		mutex_unlock(&child->mm->context.lock);
+-	}
++	} else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS)
++		addr = ktla_ktva(addr);
+ 
+ 	return addr;
+ }
+@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
+ 	unsigned char opcode[15];
+ 	unsigned long addr = convert_ip_to_linear(child, regs);
+ 
++	if (addr == -EINVAL)
++		return 0;
++
+ 	copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0);
+ 	for (i = 0; i < copied; i++) {
+ 		switch (opcode[i]) {
+diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
+new file mode 100644
+index 0000000..5877189
+--- /dev/null
++++ b/arch/x86/kernel/sys_i386_32.c
+@@ -0,0 +1,189 @@
++/*
++ * This file contains various random system calls that
++ * have a non-standard calling sequence on the Linux/i386
++ * platform.
++ */
++
++#include <linux/errno.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/fs.h>
++#include <linux/smp.h>
++#include <linux/sem.h>
++#include <linux/msg.h>
++#include <linux/shm.h>
++#include <linux/stat.h>
++#include <linux/syscalls.h>
++#include <linux/mman.h>
++#include <linux/file.h>
++#include <linux/utsname.h>
++#include <linux/ipc.h>
++#include <linux/elf.h>
++
++#include <linux/uaccess.h>
++#include <linux/unistd.h>
++
++#include <asm/syscalls.h>
++
++int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
++{
++	unsigned long pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++	if (flags & MAP_FIXED)
++		if (len > pax_task_size || addr > pax_task_size - len)
++			return -EINVAL;
++
++	return 0;
++}
++
++/*
++ * Align a virtual address to avoid aliasing in the I$ on AMD F15h.
++ */
++static unsigned long get_align_mask(void)
++{
++	if (va_align.flags < 0 || !(va_align.flags & ALIGN_VA_32))
++		return 0;
++
++	if (!(current->flags & PF_RANDOMIZE))
++		return 0;
++
++	return va_align.mask;
++}
++
++unsigned long
++arch_get_unmapped_area(struct file *filp, unsigned long addr,
++		unsigned long len, unsigned long pgoff, unsigned long flags)
++{
++	struct mm_struct *mm = current->mm;
++	struct vm_area_struct *vma;
++	unsigned long pax_task_size = TASK_SIZE;
++	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++	pax_task_size -= PAGE_SIZE;
++
++	if (len > pax_task_size)
++		return -ENOMEM;
++
++	if (flags & MAP_FIXED)
++		return addr;
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
++	if (addr) {
++		addr = PAGE_ALIGN(addr);
++		if (pax_task_size - len >= addr) {
++			vma = find_vma(mm, addr);
++			if (check_heap_stack_gap(vma, addr, len, offset))
++				return addr;
++		}
++	}
++
++	info.flags = 0;
++	info.length = len;
++	info.align_mask = filp ? get_align_mask() : 0;
++	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) {
++		info.low_limit = 0x00110000UL;
++		info.high_limit = mm->start_code;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap & 0x03FFF000UL;
++#endif
++
++		if (info.low_limit < info.high_limit) {
++			addr = vm_unmapped_area(&info);
++			if (!IS_ERR_VALUE(addr))
++				return addr;
++		}
++	} else
++#endif
++
++	info.low_limit = mm->mmap_base;
++	info.high_limit = pax_task_size;
++
++	return vm_unmapped_area(&info);
++}
++
++unsigned long
++arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
++			  const unsigned long len, const unsigned long pgoff,
++			  const unsigned long flags)
++{
++	struct vm_area_struct *vma;
++	struct mm_struct *mm = current->mm;
++	unsigned long addr = addr0, pax_task_size = TASK_SIZE;
++	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++	pax_task_size -= PAGE_SIZE;
++
++	/* requested length too big for entire address space */
++	if (len > pax_task_size)
++		return -ENOMEM;
++
++	if (flags & MAP_FIXED)
++		return addr;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE))
++		goto bottomup;
++#endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
++	/* requesting a specific address */
++	if (addr) {
++		addr = PAGE_ALIGN(addr);
++		if (pax_task_size - len >= addr) {
++			vma = find_vma(mm, addr);
++			if (check_heap_stack_gap(vma, addr, len, offset))
++				return addr;
++		}
++	}
++
++	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
++	info.length = len;
++	info.low_limit = PAGE_SIZE;
++	info.high_limit = mm->mmap_base;
++	info.align_mask = filp ? get_align_mask() : 0;
++	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
++
++	addr = vm_unmapped_area(&info);
++	if (!(addr & ~PAGE_MASK))
++		return addr;
++	VM_BUG_ON(addr != -ENOMEM);
++
++bottomup:
++	/*
++	 * A failed mmap() very likely causes application failure,
++	 * so fall back to the bottom-up function here. This scenario
++	 * can happen with large stack limits and large mmap()
++	 * allocations.
++	 */
++	return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
++}
+diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
+index 30277e2..5664a29 100644
+--- a/arch/x86/kernel/sys_x86_64.c
++++ b/arch/x86/kernel/sys_x86_64.c
+@@ -81,8 +81,8 @@ out:
+ 	return error;
+ }
+ 
+-static void find_start_end(unsigned long flags, unsigned long *begin,
+-			   unsigned long *end)
++static void find_start_end(struct mm_struct *mm, unsigned long flags,
++			   unsigned long *begin, unsigned long *end)
+ {
+ 	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT)) {
+ 		unsigned long new_begin;
+@@ -101,7 +101,7 @@ static void find_start_end(unsigned long flags, unsigned long *begin,
+ 				*begin = new_begin;
+ 		}
+ 	} else {
+-		*begin = current->mm->mmap_legacy_base;
++		*begin = mm->mmap_legacy_base;
+ 		*end = TASK_SIZE;
+ 	}
+ }
+@@ -114,20 +114,24 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	struct vm_area_struct *vma;
+ 	struct vm_unmapped_area_info info;
+ 	unsigned long begin, end;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 
+ 	if (flags & MAP_FIXED)
+ 		return addr;
+ 
+-	find_start_end(flags, &begin, &end);
++	find_start_end(mm, flags, &begin, &end);
+ 
+ 	if (len > end)
+ 		return -ENOMEM;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		addr = PAGE_ALIGN(addr);
+ 		vma = find_vma(mm, addr);
+-		if (end - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (end - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -137,6 +141,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	info.high_limit = end;
+ 	info.align_mask = filp ? get_align_mask() : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+@@ -149,6 +154,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	struct mm_struct *mm = current->mm;
+ 	unsigned long addr = addr0;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 
+ 	/* requested length too big for entire address space */
+ 	if (len > TASK_SIZE)
+@@ -161,12 +167,15 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	if (!test_thread_flag(TIF_ADDR32) && (flags & MAP_32BIT))
+ 		goto bottomup;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	/* requesting a specific address */
+ 	if (addr) {
+ 		addr = PAGE_ALIGN(addr);
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-				(!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -176,6 +185,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = filp ? get_align_mask() : 0;
+ 	info.align_offset = pgoff << PAGE_SHIFT;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 	if (!(addr & ~PAGE_MASK))
+ 		return addr;
+diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
+index 91a4496..03056ee 100644
+--- a/arch/x86/kernel/tboot.c
++++ b/arch/x86/kernel/tboot.c
+@@ -44,6 +44,7 @@
+ #include <asm/setup.h>
+ #include <asm/e820.h>
+ #include <asm/io.h>
++#include <asm/tlbflush.h>
+ 
+ #include "../realmode/rm/wakeup.h"
+ 
+@@ -221,7 +222,7 @@ static int tboot_setup_sleep(void)
+ 
+ void tboot_shutdown(u32 shutdown_type)
+ {
+-	void (*shutdown)(void);
++	void (* __noreturn shutdown)(void);
+ 
+ 	if (!tboot_enabled())
+ 		return;
+@@ -242,8 +243,9 @@ void tboot_shutdown(u32 shutdown_type)
+ 	tboot->shutdown_type = shutdown_type;
+ 
+ 	switch_to_tboot_pt();
++	write_cr4(read_cr4() & ~X86_CR4_PCIDE);
+ 
+-	shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry;
++	shutdown = (void *)(unsigned long)tboot->shutdown_entry;
+ 	shutdown();
+ 
+ 	/* should not reach here */
+@@ -310,7 +312,7 @@ static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b)
+ 	return -ENODEV;
+ }
+ 
+-static atomic_t ap_wfs_count;
++static atomic_unchecked_t ap_wfs_count;
+ 
+ static int tboot_wait_for_aps(int num_aps)
+ {
+@@ -334,9 +336,9 @@ static int tboot_cpu_callback(struct notifier_block *nfb, unsigned long action,
+ {
+ 	switch (action) {
+ 	case CPU_DYING:
+-		atomic_inc(&ap_wfs_count);
++		atomic_inc_unchecked(&ap_wfs_count);
+ 		if (num_online_cpus() == 1)
+-			if (tboot_wait_for_aps(atomic_read(&ap_wfs_count)))
++			if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count)))
+ 				return NOTIFY_BAD;
+ 		break;
+ 	}
+@@ -422,7 +424,7 @@ static __init int tboot_late_init(void)
+ 
+ 	tboot_create_trampoline();
+ 
+-	atomic_set(&ap_wfs_count, 0);
++	atomic_set_unchecked(&ap_wfs_count, 0);
+ 	register_hotcpu_notifier(&tboot_cpu_notifier);
+ 
+ #ifdef CONFIG_DEBUG_FS
+diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
+index 24d3c91..d06b473 100644
+--- a/arch/x86/kernel/time.c
++++ b/arch/x86/kernel/time.c
+@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs *regs)
+ {
+ 	unsigned long pc = instruction_pointer(regs);
+ 
+-	if (!user_mode_vm(regs) && in_lock_functions(pc)) {
++	if (!user_mode(regs) && in_lock_functions(pc)) {
+ #ifdef CONFIG_FRAME_POINTER
+-		return *(unsigned long *)(regs->bp + sizeof(long));
++		return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long)));
+ #else
+ 		unsigned long *sp =
+ 			(unsigned long *)kernel_stack_pointer(regs);
+@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs *regs)
+ 		 * or above a saved flags. Eflags has bits 22-31 zero,
+ 		 * kernel addresses don't.
+ 		 */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		return ktla_ktva(sp[0]);
++#else
+ 		if (sp[0] >> 22)
+ 			return sp[0];
+ 		if (sp[1] >> 22)
+ 			return sp[1];
+ #endif
++
++#endif
+ 	}
+ 	return pc;
+ }
+diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
+index 7fc5e84..c6e445a 100644
+--- a/arch/x86/kernel/tls.c
++++ b/arch/x86/kernel/tls.c
+@@ -139,6 +139,11 @@ int do_set_thread_area(struct task_struct *p, int idx,
+ 	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
+ 		return -EINVAL;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE))
++		return -EINVAL;
++#endif
++
+ 	set_tls_desc(p, idx, &info, 1);
+ 
+ 	return 0;
+@@ -256,7 +261,7 @@ int regset_tls_set(struct task_struct *target, const struct user_regset *regset,
+ 
+ 	if (kbuf)
+ 		info = kbuf;
+-	else if (__copy_from_user(infobuf, ubuf, count))
++	else if (count > sizeof infobuf || __copy_from_user(infobuf, ubuf, count))
+ 		return -EFAULT;
+ 	else
+ 		info = infobuf;
+diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
+index 1c113db..287b42e 100644
+--- a/arch/x86/kernel/tracepoint.c
++++ b/arch/x86/kernel/tracepoint.c
+@@ -9,11 +9,11 @@
+ #include <linux/atomic.h>
+ 
+ atomic_t trace_idt_ctr = ATOMIC_INIT(0);
+-struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
++const struct desc_ptr trace_idt_descr = { NR_VECTORS * 16 - 1,
+ 				(unsigned long) trace_idt_table };
+ 
+ /* No need to be aligned, but done to keep all IDTs defined the same way. */
+-gate_desc trace_idt_table[NR_VECTORS] __page_aligned_bss;
++gate_desc trace_idt_table[NR_VECTORS] __page_aligned_rodata;
+ 
+ static int trace_irq_vector_refcount;
+ static DEFINE_MUTEX(irq_vector_mutex);
+diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
+index b1d9002..04013df 100644
+--- a/arch/x86/kernel/traps.c
++++ b/arch/x86/kernel/traps.c
+@@ -66,7 +66,7 @@
+ #include <asm/proto.h>
+ 
+ /* No need to be aligned, but done to keep all IDTs defined the same way. */
+-gate_desc debug_idt_table[NR_VECTORS] __page_aligned_bss;
++gate_desc debug_idt_table[NR_VECTORS] __page_aligned_rodata;
+ #else
+ #include <asm/processor-flags.h>
+ #include <asm/setup.h>
+@@ -75,7 +75,7 @@ asmlinkage int system_call(void);
+ #endif
+ 
+ /* Must be page-aligned because the real IDT is used in a fixmap. */
+-gate_desc idt_table[NR_VECTORS] __page_aligned_bss;
++gate_desc idt_table[NR_VECTORS] __page_aligned_rodata;
+ 
+ DECLARE_BITMAP(used_vectors, NR_VECTORS);
+ EXPORT_SYMBOL_GPL(used_vectors);
+@@ -107,11 +107,11 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
+ }
+ 
+ static int __kprobes
+-do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
++do_trap_no_signal(struct task_struct *tsk, int trapnr, const char *str,
+ 		  struct pt_regs *regs,	long error_code)
+ {
+ #ifdef CONFIG_X86_32
+-	if (regs->flags & X86_VM_MASK) {
++	if (v8086_mode(regs)) {
+ 		/*
+ 		 * Traps 0, 1, 3, 4, and 5 should be forwarded to vm86.
+ 		 * On nmi (interrupt 2), do_trap should not be called.
+@@ -124,12 +124,24 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
+ 		return -1;
+ 	}
+ #endif
+-	if (!user_mode(regs)) {
++	if (!user_mode_novm(regs)) {
+ 		if (!fixup_exception(regs)) {
+ 			tsk->thread.error_code = error_code;
+ 			tsk->thread.trap_nr = trapnr;
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++			if (trapnr == X86_TRAP_SS && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS))
++				str = "PAX: suspicious stack segment fault";
++#endif
++
+ 			die(str, regs, error_code);
+ 		}
++
++#ifdef CONFIG_PAX_REFCOUNT
++		if (trapnr == X86_TRAP_OF)
++			pax_report_refcount_overflow(regs);
++#endif
++
+ 		return 0;
+ 	}
+ 
+@@ -137,7 +149,7 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
+ }
+ 
+ static void __kprobes
+-do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
++do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs,
+ 	long error_code, siginfo_t *info)
+ {
+ 	struct task_struct *tsk = current;
+@@ -161,7 +173,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
+ 	if (show_unhandled_signals && unhandled_signal(tsk, signr) &&
+ 	    printk_ratelimit()) {
+ 		pr_info("%s[%d] trap %s ip:%lx sp:%lx error:%lx",
+-			tsk->comm, tsk->pid, str,
++			tsk->comm, task_pid_nr(tsk), str,
+ 			regs->ip, regs->sp, error_code);
+ 		print_vma_addr(" in ", regs->ip);
+ 		pr_cont("\n");
+@@ -259,6 +271,11 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
+ 	tsk->thread.error_code = error_code;
+ 	tsk->thread.trap_nr = X86_TRAP_DF;
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++	if ((unsigned long)tsk->stack - regs->sp <= PAGE_SIZE)
++		die("grsec: kernel stack overflow detected", regs, error_code);	
++#endif
++
+ #ifdef CONFIG_DOUBLEFAULT
+ 	df_debug(regs, error_code);
+ #endif
+@@ -281,7 +298,7 @@ do_general_protection(struct pt_regs *regs, long error_code)
+ 	conditional_sti(regs);
+ 
+ #ifdef CONFIG_X86_32
+-	if (regs->flags & X86_VM_MASK) {
++	if (v8086_mode(regs)) {
+ 		local_irq_enable();
+ 		handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
+ 		goto exit;
+@@ -289,18 +306,42 @@ do_general_protection(struct pt_regs *regs, long error_code)
+ #endif
+ 
+ 	tsk = current;
+-	if (!user_mode(regs)) {
++	if (!user_mode_novm(regs)) {
+ 		if (fixup_exception(regs))
+ 			goto exit;
+ 
+ 		tsk->thread.error_code = error_code;
+ 		tsk->thread.trap_nr = X86_TRAP_GP;
+ 		if (notify_die(DIE_GPF, "general protection fault", regs, error_code,
+-			       X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
++			       X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP) {
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)
++			die("PAX: suspicious general protection fault", regs, error_code);
++		else
++#endif
++
+ 			die("general protection fault", regs, error_code);
++		}
+ 		goto exit;
+ 	}
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++	if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) {
++		struct mm_struct *mm = tsk->mm;
++		unsigned long limit;
++
++		down_write(&mm->mmap_sem);
++		limit = mm->context.user_cs_limit;
++		if (limit < TASK_SIZE) {
++			track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC);
++			up_write(&mm->mmap_sem);
++			return;
++		}
++		up_write(&mm->mmap_sem);
++	}
++#endif
++
+ 	tsk->thread.error_code = error_code;
+ 	tsk->thread.trap_nr = X86_TRAP_GP;
+ 
+@@ -404,13 +445,16 @@ struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s)
+ 		container_of(task_pt_regs(current),
+ 			     struct bad_iret_stack, regs);
+ 
++	if ((current->thread.sp0 ^ (unsigned long)s) < THREAD_SIZE)
++		new_stack = s;
++
+ 	/* Copy the IRET target to the new stack. */
+ 	memmove(&new_stack->regs.ip, (void *)s->regs.sp, 5*8);
+ 
+ 	/* Copy the remainder of the stack from the current stack. */
+ 	memmove(new_stack, s, offsetof(struct bad_iret_stack, regs.ip));
+ 
+-	BUG_ON(!user_mode_vm(&new_stack->regs));
++	BUG_ON(!user_mode(&new_stack->regs));
+ 	return new_stack;
+ }
+ #endif
+@@ -490,7 +534,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
+ 	/* It's safe to allow irq's after DR6 has been saved */
+ 	preempt_conditional_sti(regs);
+ 
+-	if (regs->flags & X86_VM_MASK) {
++	if (v8086_mode(regs)) {
+ 		handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code,
+ 					X86_TRAP_DB);
+ 		preempt_conditional_cli(regs);
+@@ -505,7 +549,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
+ 	 * We already checked v86 mode above, so we can check for kernel mode
+ 	 * by just checking the CPL of CS.
+ 	 */
+-	if ((dr6 & DR_STEP) && !user_mode(regs)) {
++	if ((dr6 & DR_STEP) && !user_mode_novm(regs)) {
+ 		tsk->thread.debugreg6 &= ~DR_STEP;
+ 		set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
+ 		regs->flags &= ~X86_EFLAGS_TF;
+@@ -537,7 +581,7 @@ void math_error(struct pt_regs *regs, int error_code, int trapnr)
+ 		return;
+ 	conditional_sti(regs);
+ 
+-	if (!user_mode_vm(regs))
++	if (!user_mode(regs))
+ 	{
+ 		if (!fixup_exception(regs)) {
+ 			task->thread.error_code = error_code;
+diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
+index b20bced..17532ba 100644
+--- a/arch/x86/kernel/tsc.c
++++ b/arch/x86/kernel/tsc.c
+@@ -150,7 +150,7 @@ static void cyc2ns_write_end(int cpu, struct cyc2ns_data *data)
+ 	 */
+ 	smp_wmb();
+ 
+-	ACCESS_ONCE(c2n->head) = data;
++	ACCESS_ONCE_RW(c2n->head) = data;
+ }
+ 
+ /*
+diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
+index 2ed8459..7cf329f 100644
+--- a/arch/x86/kernel/uprobes.c
++++ b/arch/x86/kernel/uprobes.c
+@@ -629,7 +629,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
+ 	int ret = NOTIFY_DONE;
+ 
+ 	/* We are only interested in userspace traps */
+-	if (regs && !user_mode_vm(regs))
++	if (regs && !user_mode(regs))
+ 		return NOTIFY_DONE;
+ 
+ 	switch (val) {
+@@ -719,7 +719,7 @@ arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs
+ 
+ 	if (ncopied != rasize) {
+ 		pr_err("uprobe: return address clobbered: pid=%d, %%sp=%#lx, "
+-			"%%ip=%#lx\n", current->pid, regs->sp, regs->ip);
++			"%%ip=%#lx\n", task_pid_nr(current), regs->sp, regs->ip);
+ 
+ 		force_sig_info(SIGSEGV, SEND_SIG_FORCED, current);
+ 	}
+diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
+index b9242ba..50c5edd 100644
+--- a/arch/x86/kernel/verify_cpu.S
++++ b/arch/x86/kernel/verify_cpu.S
+@@ -20,6 +20,7 @@
+  *	arch/x86/boot/compressed/head_64.S: Boot cpu verification
+  *	arch/x86/kernel/trampoline_64.S: secondary processor verification
+  *	arch/x86/kernel/head_32.S: processor startup
++ *	arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume
+  *
+  *	verify_cpu, returns the status of longmode and SSE in register %eax.
+  *		0: Success    1: Failure
+diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
+index e8edcf5..27f9344 100644
+--- a/arch/x86/kernel/vm86_32.c
++++ b/arch/x86/kernel/vm86_32.c
+@@ -44,6 +44,7 @@
+ #include <linux/ptrace.h>
+ #include <linux/audit.h>
+ #include <linux/stddef.h>
++#include <linux/grsecurity.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/io.h>
+@@ -150,7 +151,7 @@ struct pt_regs *save_v86_state(struct kernel_vm86_regs *regs)
+ 		do_exit(SIGSEGV);
+ 	}
+ 
+-	tss = &per_cpu(init_tss, get_cpu());
++	tss = init_tss + get_cpu();
+ 	current->thread.sp0 = current->thread.saved_sp0;
+ 	current->thread.sysenter_cs = __KERNEL_CS;
+ 	load_sp0(tss, &current->thread);
+@@ -214,6 +215,14 @@ SYSCALL_DEFINE1(vm86old, struct vm86_struct __user *, v86)
+ 
+ 	if (tsk->thread.saved_sp0)
+ 		return -EPERM;
++
++#ifdef CONFIG_GRKERNSEC_VM86
++	if (!capable(CAP_SYS_RAWIO)) {
++		gr_handle_vm86();
++		return -EPERM;
++	}
++#endif
++
+ 	tmp = copy_vm86_regs_from_user(&info.regs, &v86->regs,
+ 				       offsetof(struct kernel_vm86_struct, vm86plus) -
+ 				       sizeof(info.regs));
+@@ -238,6 +247,13 @@ SYSCALL_DEFINE2(vm86, unsigned long, cmd, unsigned long, arg)
+ 	int tmp;
+ 	struct vm86plus_struct __user *v86;
+ 
++#ifdef CONFIG_GRKERNSEC_VM86
++	if (!capable(CAP_SYS_RAWIO)) {
++		gr_handle_vm86();
++		return -EPERM;
++	}
++#endif
++
+ 	tsk = current;
+ 	switch (cmd) {
+ 	case VM86_REQUEST_IRQ:
+@@ -318,7 +334,7 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
+ 	tsk->thread.saved_fs = info->regs32->fs;
+ 	tsk->thread.saved_gs = get_user_gs(info->regs32);
+ 
+-	tss = &per_cpu(init_tss, get_cpu());
++	tss = init_tss + get_cpu();
+ 	tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0;
+ 	if (cpu_has_sep)
+ 		tsk->thread.sysenter_cs = 0;
+@@ -525,7 +541,7 @@ static void do_int(struct kernel_vm86_regs *regs, int i,
+ 		goto cannot_handle;
+ 	if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored))
+ 		goto cannot_handle;
+-	intr_ptr = (unsigned long __user *) (i << 2);
++	intr_ptr = (__force unsigned long __user *) (i << 2);
+ 	if (get_user(segoffs, intr_ptr))
+ 		goto cannot_handle;
+ 	if ((segoffs >> 16) == BIOSSEG)
+diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
+index da6b35a..7ef6b87 100644
+--- a/arch/x86/kernel/vmlinux.lds.S
++++ b/arch/x86/kernel/vmlinux.lds.S
+@@ -26,6 +26,13 @@
+ #include <asm/page_types.h>
+ #include <asm/cache.h>
+ #include <asm/boot.h>
++#include <asm/segment.h>
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++#define __KERNEL_TEXT_OFFSET	(LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR)
++#else
++#define __KERNEL_TEXT_OFFSET	0
++#endif
+ 
+ #undef i386     /* in case the preprocessor is a 32bit one */
+ 
+@@ -69,30 +76,43 @@ jiffies_64 = jiffies;
+ 
+ PHDRS {
+ 	text PT_LOAD FLAGS(5);          /* R_E */
++#ifdef CONFIG_X86_32
++	module PT_LOAD FLAGS(5);        /* R_E */
++#endif
++#ifdef CONFIG_XEN
++	rodata PT_LOAD FLAGS(5);        /* R_E */
++#else
++	rodata PT_LOAD FLAGS(4);        /* R__ */
++#endif
+ 	data PT_LOAD FLAGS(6);          /* RW_ */
+-#ifdef CONFIG_X86_64
++	init.begin PT_LOAD FLAGS(6);    /* RW_ */
+ #ifdef CONFIG_SMP
+ 	percpu PT_LOAD FLAGS(6);        /* RW_ */
+ #endif
++	text.init PT_LOAD FLAGS(5);     /* R_E */
++	text.exit PT_LOAD FLAGS(5);     /* R_E */
+ 	init PT_LOAD FLAGS(7);          /* RWE */
+-#endif
+ 	note PT_NOTE FLAGS(0);          /* ___ */
+ }
+ 
+ SECTIONS
+ {
+ #ifdef CONFIG_X86_32
+-        . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR;
+-        phys_startup_32 = startup_32 - LOAD_OFFSET;
++	. = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR;
+ #else
+-        . = __START_KERNEL;
+-        phys_startup_64 = startup_64 - LOAD_OFFSET;
++	. = __START_KERNEL;
+ #endif
+ 
+ 	/* Text and read-only data */
+-	.text :  AT(ADDR(.text) - LOAD_OFFSET) {
+-		_text = .;
++	.text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
+ 		/* bootstrapping code */
++#ifdef CONFIG_X86_32
++		phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
++#else
++		phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
++#endif
++		__LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET;
++		_text = .;
+ 		HEAD_TEXT
+ 		. = ALIGN(8);
+ 		_stext = .;
+@@ -104,13 +124,47 @@ SECTIONS
+ 		IRQENTRY_TEXT
+ 		*(.fixup)
+ 		*(.gnu.warning)
+-		/* End of text section */
+-		_etext = .;
+ 	} :text = 0x9090
+ 
+-	NOTES :text :note
++	. += __KERNEL_TEXT_OFFSET;
+ 
+-	EXCEPTION_TABLE(16) :text = 0x9090
++#ifdef CONFIG_X86_32
++	. = ALIGN(PAGE_SIZE);
++	.module.text : AT(ADDR(.module.text) - LOAD_OFFSET) {
++
++#ifdef CONFIG_PAX_KERNEXEC
++		MODULES_EXEC_VADDR = .;
++		BYTE(0)
++		. += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024);
++		. = ALIGN(HPAGE_SIZE) - 1;
++		MODULES_EXEC_END = .;
++#endif
++
++	} :module
++#endif
++
++	.text.end : AT(ADDR(.text.end) - LOAD_OFFSET) {
++		/* End of text section */
++		BYTE(0)
++		_etext = . - __KERNEL_TEXT_OFFSET;
++	}
++
++#ifdef CONFIG_X86_32
++	. = ALIGN(PAGE_SIZE);
++	.rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) {
++		. = ALIGN(PAGE_SIZE);
++		*(.empty_zero_page)
++		*(.initial_pg_fixmap)
++		*(.initial_pg_pmd)
++		*(.initial_page_table)
++		*(.swapper_pg_dir)
++	} :rodata
++#endif
++
++	. = ALIGN(PAGE_SIZE);
++	NOTES :rodata :note
++
++	EXCEPTION_TABLE(16) :rodata
+ 
+ #if defined(CONFIG_DEBUG_RODATA)
+ 	/* .text should occupy whole number of pages */
+@@ -122,16 +176,20 @@ SECTIONS
+ 
+ 	/* Data */
+ 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
++
++#ifdef CONFIG_PAX_KERNEXEC
++		. = ALIGN(HPAGE_SIZE);
++#else
++		. = ALIGN(PAGE_SIZE);
++#endif
++
+ 		/* Start of data section */
+ 		_sdata = .;
+ 
+ 		/* init_task */
+ 		INIT_TASK_DATA(THREAD_SIZE)
+ 
+-#ifdef CONFIG_X86_32
+-		/* 32 bit has nosave before _edata */
+ 		NOSAVE_DATA
+-#endif
+ 
+ 		PAGE_ALIGNED_DATA(PAGE_SIZE)
+ 
+@@ -172,12 +230,19 @@ SECTIONS
+ #endif /* CONFIG_X86_64 */
+ 
+ 	/* Init code and data - will be freed after init */
+-	. = ALIGN(PAGE_SIZE);
+ 	.init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) {
++		BYTE(0)
++
++#ifdef CONFIG_PAX_KERNEXEC
++		. = ALIGN(HPAGE_SIZE);
++#else
++		. = ALIGN(PAGE_SIZE);
++#endif
++
+ 		__init_begin = .; /* paired with __init_end */
+-	}
++	} :init.begin
+ 
+-#if defined(CONFIG_X86_64) && defined(CONFIG_SMP)
++#ifdef CONFIG_SMP
+ 	/*
+ 	 * percpu offsets are zero-based on SMP.  PERCPU_VADDR() changes the
+ 	 * output PHDR, so the next output section - .init.text - should
+@@ -186,12 +251,27 @@ SECTIONS
+ 	PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu)
+ #endif
+ 
+-	INIT_TEXT_SECTION(PAGE_SIZE)
+-#ifdef CONFIG_X86_64
+-	:init
+-#endif
++	. = ALIGN(PAGE_SIZE);
++	init_begin = .;
++	.init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) {
++		VMLINUX_SYMBOL(_sinittext) = .;
++		INIT_TEXT
++		. = ALIGN(PAGE_SIZE);
++	} :text.init
+ 
+-	INIT_DATA_SECTION(16)
++	/*
++	 * .exit.text is discard at runtime, not link time, to deal with
++	 *  references from .altinstructions and .eh_frame
++	 */
++	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) {
++		EXIT_TEXT
++		VMLINUX_SYMBOL(_einittext) = .;
++		. = ALIGN(16);
++	} :text.exit
++	. = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text);
++
++	. = ALIGN(PAGE_SIZE);
++	INIT_DATA_SECTION(16) :init
+ 
+ 	.x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
+ 		__x86_cpu_dev_start = .;
+@@ -262,19 +342,12 @@ SECTIONS
+ 	}
+ 
+ 	. = ALIGN(8);
+-	/*
+-	 * .exit.text is discard at runtime, not link time, to deal with
+-	 *  references from .altinstructions and .eh_frame
+-	 */
+-	.exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) {
+-		EXIT_TEXT
+-	}
+ 
+ 	.exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) {
+ 		EXIT_DATA
+ 	}
+ 
+-#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP)
++#ifndef CONFIG_SMP
+ 	PERCPU_SECTION(INTERNODE_CACHE_BYTES)
+ #endif
+ 
+@@ -293,16 +366,10 @@ SECTIONS
+ 	.smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
+ 		__smp_locks = .;
+ 		*(.smp_locks)
+-		. = ALIGN(PAGE_SIZE);
+ 		__smp_locks_end = .;
++		. = ALIGN(PAGE_SIZE);
+ 	}
+ 
+-#ifdef CONFIG_X86_64
+-	.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
+-		NOSAVE_DATA
+-	}
+-#endif
+-
+ 	/* BSS */
+ 	. = ALIGN(PAGE_SIZE);
+ 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
+@@ -318,6 +385,7 @@ SECTIONS
+ 		__brk_base = .;
+ 		. += 64 * 1024;		/* 64k alignment slop space */
+ 		*(.brk_reservation)	/* areas brk users have reserved */
++		. = ALIGN(HPAGE_SIZE);
+ 		__brk_limit = .;
+ 	}
+ 
+@@ -344,13 +412,12 @@ SECTIONS
+  * for the boot processor.
+  */
+ #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load
+-INIT_PER_CPU(gdt_page);
+ INIT_PER_CPU(irq_stack_union);
+ 
+ /*
+  * Build-time check on the image size:
+  */
+-. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
++. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE),
+ 	   "kernel image bigger than KERNEL_IMAGE_SIZE");
+ 
+ #ifdef CONFIG_SMP
+diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
+index 09ce23a..9293938 100644
+--- a/arch/x86/kernel/vsyscall_64.c
++++ b/arch/x86/kernel/vsyscall_64.c
+@@ -56,15 +56,13 @@
+ DEFINE_VVAR(int, vgetcpu_mode);
+ DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data);
+ 
+-static enum { EMULATE, NATIVE, NONE } vsyscall_mode = EMULATE;
++static enum { EMULATE, NONE } vsyscall_mode = EMULATE;
+ 
+ static int __init vsyscall_setup(char *str)
+ {
+ 	if (str) {
+ 		if (!strcmp("emulate", str))
+ 			vsyscall_mode = EMULATE;
+-		else if (!strcmp("native", str))
+-			vsyscall_mode = NATIVE;
+ 		else if (!strcmp("none", str))
+ 			vsyscall_mode = NONE;
+ 		else
+@@ -101,7 +99,7 @@ void update_vsyscall(struct timekeeper *tk)
+ 	vdata->monotonic_time_sec	= tk->xtime_sec
+ 					+ tk->wall_to_monotonic.tv_sec;
+ 	vdata->monotonic_time_snsec	= tk->xtime_nsec
+-					+ (tk->wall_to_monotonic.tv_nsec
++					+ ((u64)tk->wall_to_monotonic.tv_nsec
+ 						<< tk->shift);
+ 	while (vdata->monotonic_time_snsec >=
+ 					(((u64)NSEC_PER_SEC) << tk->shift)) {
+@@ -323,8 +321,7 @@ do_ret:
+ 	return true;
+ 
+ sigsegv:
+-	force_sig(SIGSEGV, current);
+-	return true;
++	do_group_exit(SIGKILL);
+ }
+ 
+ /*
+@@ -377,10 +374,7 @@ void __init map_vsyscall(void)
+ 	extern char __vvar_page;
+ 	unsigned long physaddr_vvar_page = __pa_symbol(&__vvar_page);
+ 
+-	__set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall,
+-		     vsyscall_mode == NATIVE
+-		     ? PAGE_KERNEL_VSYSCALL
+-		     : PAGE_KERNEL_VVAR);
++	__set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_vsyscall, PAGE_KERNEL_VVAR);
+ 	BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_FIRST_PAGE) !=
+ 		     (unsigned long)VSYSCALL_START);
+ 
+diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
+index 04068192..4d75aa6 100644
+--- a/arch/x86/kernel/x8664_ksyms_64.c
++++ b/arch/x86/kernel/x8664_ksyms_64.c
+@@ -34,8 +34,6 @@ EXPORT_SYMBOL(copy_user_generic_string);
+ EXPORT_SYMBOL(copy_user_generic_unrolled);
+ EXPORT_SYMBOL(copy_user_enhanced_fast_string);
+ EXPORT_SYMBOL(__copy_user_nocache);
+-EXPORT_SYMBOL(_copy_from_user);
+-EXPORT_SYMBOL(_copy_to_user);
+ 
+ EXPORT_SYMBOL(copy_page);
+ EXPORT_SYMBOL(clear_page);
+@@ -73,3 +71,7 @@ EXPORT_SYMBOL(___preempt_schedule);
+ EXPORT_SYMBOL(___preempt_schedule_context);
+ #endif
+ #endif
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++EXPORT_SYMBOL(cpu_pgd);
++#endif
+diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
+index e48b674..a451dd9 100644
+--- a/arch/x86/kernel/x86_init.c
++++ b/arch/x86/kernel/x86_init.c
+@@ -93,7 +93,7 @@ struct x86_cpuinit_ops x86_cpuinit = {
+ static void default_nmi_init(void) { };
+ static int default_i8042_detect(void) { return 1; };
+ 
+-struct x86_platform_ops x86_platform = {
++struct x86_platform_ops x86_platform __read_only = {
+ 	.calibrate_tsc			= native_calibrate_tsc,
+ 	.get_wallclock			= mach_get_cmos_time,
+ 	.set_wallclock			= mach_set_rtc_mmss,
+@@ -109,7 +109,7 @@ struct x86_platform_ops x86_platform = {
+ EXPORT_SYMBOL_GPL(x86_platform);
+ 
+ #if defined(CONFIG_PCI_MSI)
+-struct x86_msi_ops x86_msi = {
++struct x86_msi_ops x86_msi __read_only = {
+ 	.setup_msi_irqs		= native_setup_msi_irqs,
+ 	.compose_msi_msg	= native_compose_msi_msg,
+ 	.teardown_msi_irq	= native_teardown_msi_irq,
+@@ -150,7 +150,7 @@ u32 arch_msix_mask_irq(struct msi_desc *desc, u32 flag)
+ }
+ #endif
+ 
+-struct x86_io_apic_ops x86_io_apic_ops = {
++struct x86_io_apic_ops x86_io_apic_ops __read_only = {
+ 	.init			= native_io_apic_init_mappings,
+ 	.read			= native_io_apic_read,
+ 	.write			= native_io_apic_write,
+diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
+index 7a09aca..cc2e713 100644
+--- a/arch/x86/kernel/xsave.c
++++ b/arch/x86/kernel/xsave.c
+@@ -164,18 +164,18 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
+ 
+ 	/* Setup the bytes not touched by the [f]xsave and reserved for SW. */
+ 	sw_bytes = ia32_frame ? &fx_sw_reserved_ia32 : &fx_sw_reserved;
+-	err = __copy_to_user(&x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
++	err = __copy_to_user(x->i387.sw_reserved, sw_bytes, sizeof(*sw_bytes));
+ 
+ 	if (!use_xsave())
+ 		return err;
+ 
+-	err |= __put_user(FP_XSTATE_MAGIC2, (__u32 *)(buf + xstate_size));
++	err |= __put_user(FP_XSTATE_MAGIC2, (__u32 __user *)(buf + xstate_size));
+ 
+ 	/*
+ 	 * Read the xstate_bv which we copied (directly from the cpu or
+ 	 * from the state in task struct) to the user buffers.
+ 	 */
+-	err |= __get_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
++	err |= __get_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
+ 
+ 	/*
+ 	 * For legacy compatible, we always set FP/SSE bits in the bit
+@@ -190,7 +190,7 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
+ 	 */
+ 	xstate_bv |= XSTATE_FPSSE;
+ 
+-	err |= __put_user(xstate_bv, (__u32 *)&x->xsave_hdr.xstate_bv);
++	err |= __put_user(xstate_bv, (__u32 __user *)&x->xsave_hdr.xstate_bv);
+ 
+ 	return err;
+ }
+@@ -199,6 +199,7 @@ static inline int save_user_xstate(struct xsave_struct __user *buf)
+ {
+ 	int err;
+ 
++	buf = (struct xsave_struct __user *)____m(buf);
+ 	if (use_xsave())
+ 		err = xsave_user(buf);
+ 	else if (use_fxsr())
+@@ -309,6 +310,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
+  */
+ static inline int restore_user_xstate(void __user *buf, u64 xbv, int fx_only)
+ {
++	buf = (void __user *)____m(buf);
+ 	if (use_xsave()) {
+ 		if ((unsigned long)buf % 64 || fx_only) {
+ 			u64 init_bv = pcntxt_mask & ~XSTATE_FPSSE;
+diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
+index c697625..a032162 100644
+--- a/arch/x86/kvm/cpuid.c
++++ b/arch/x86/kvm/cpuid.c
+@@ -156,15 +156,20 @@ int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
+ 			      struct kvm_cpuid2 *cpuid,
+ 			      struct kvm_cpuid_entry2 __user *entries)
+ {
+-	int r;
++	int r, i;
+ 
+ 	r = -E2BIG;
+ 	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+ 		goto out;
+ 	r = -EFAULT;
+-	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
+-			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
++	if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
+ 		goto out;
++	for (i = 0; i < cpuid->nent; ++i) {
++		struct kvm_cpuid_entry2 cpuid_entry;
++		if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry)))
++			goto out;
++		vcpu->arch.cpuid_entries[i] = cpuid_entry;
++	}
+ 	vcpu->arch.cpuid_nent = cpuid->nent;
+ 	kvm_apic_set_version(vcpu);
+ 	kvm_x86_ops->cpuid_update(vcpu);
+@@ -179,15 +184,19 @@ int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
+ 			      struct kvm_cpuid2 *cpuid,
+ 			      struct kvm_cpuid_entry2 __user *entries)
+ {
+-	int r;
++	int r, i;
+ 
+ 	r = -E2BIG;
+ 	if (cpuid->nent < vcpu->arch.cpuid_nent)
+ 		goto out;
+ 	r = -EFAULT;
+-	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
+-			 vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
++	if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
+ 		goto out;
++	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
++		struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i];
++		if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry)))
++			goto out;
++	}
+ 	return 0;
+ 
+ out:
+diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
+index cf1eeea..cdb8f22 100644
+--- a/arch/x86/kvm/emulate.c
++++ b/arch/x86/kvm/emulate.c
+@@ -3390,7 +3390,7 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
+ 	int cr = ctxt->modrm_reg;
+ 	u64 efer = 0;
+ 
+-	static u64 cr_reserved_bits[] = {
++	static const u64 cr_reserved_bits[] = {
+ 		0xffffffff00000000ULL,
+ 		0, 0, 0, /* CR3 checked later */
+ 		CR4_RESERVED_BITS,
+@@ -3425,7 +3425,7 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
+ 
+ 		ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
+ 		if (efer & EFER_LMA)
+-			rsvd = CR3_L_MODE_RESERVED_BITS;
++			rsvd = CR3_L_MODE_RESERVED_BITS & ~CR3_PCID_INVD;
+ 		else if (ctxt->ops->get_cr(ctxt, 4) & X86_CR4_PAE)
+ 			rsvd = CR3_PAE_RESERVED_BITS;
+ 		else if (ctxt->ops->get_cr(ctxt, 0) & X86_CR0_PG)
+@@ -3657,8 +3657,8 @@ static const struct opcode group5[] = {
+ };
+ 
+ static const struct opcode group6[] = {
+-	DI(Prot,	sldt),
+-	DI(Prot,	str),
++	DI(Prot | DstMem,	sldt),
++	DI(Prot | DstMem,	str),
+ 	II(Prot | Priv | SrcMem16, em_lldt, lldt),
+ 	II(Prot | Priv | SrcMem16, em_ltr, ltr),
+ 	N, N, N, N,
+diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
+index 453e5fb..214168f 100644
+--- a/arch/x86/kvm/lapic.c
++++ b/arch/x86/kvm/lapic.c
+@@ -55,7 +55,7 @@
+ #define APIC_BUS_CYCLE_NS 1
+ 
+ /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */
+-#define apic_debug(fmt, arg...)
++#define apic_debug(fmt, arg...) do {} while (0)
+ 
+ #define APIC_LVT_NUM			6
+ /* 14 is the version for Xeon and Pentium 8.4.8*/
+diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
+index 6a11845..7205173 100644
+--- a/arch/x86/kvm/lapic.h
++++ b/arch/x86/kvm/lapic.h
+@@ -165,7 +165,7 @@ static inline u16 apic_logical_id(struct kvm_apic_map *map, u32 ldr)
+ 
+ static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu)
+ {
+-	return vcpu->arch.apic->pending_events;
++	return kvm_vcpu_has_lapic(vcpu) && vcpu->arch.apic->pending_events;
+ }
+ 
+ bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);
+diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
+index cba218a..1cc1bed 100644
+--- a/arch/x86/kvm/paging_tmpl.h
++++ b/arch/x86/kvm/paging_tmpl.h
+@@ -331,7 +331,7 @@ retry_walk:
+ 		if (unlikely(kvm_is_error_hva(host_addr)))
+ 			goto error;
+ 
+-		ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
++		ptep_user = (pt_element_t __force_user *)((void *)host_addr + offset);
+ 		if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
+ 			goto error;
+ 		walker->ptep_user[walker->level - 1] = ptep_user;
+diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
+index 9643eda6..c9cb765 100644
+--- a/arch/x86/kvm/svm.c
++++ b/arch/x86/kvm/svm.c
+@@ -3508,7 +3508,11 @@ static void reload_tss(struct kvm_vcpu *vcpu)
+ 	int cpu = raw_smp_processor_id();
+ 
+ 	struct svm_cpu_data *sd = per_cpu(svm_data, cpu);
++
++	pax_open_kernel();
+ 	sd->tss_desc->type = 9; /* available 32/64-bit TSS */
++	pax_close_kernel();
++
+ 	load_TR_desc();
+ }
+ 
+@@ -3911,6 +3915,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
+ #endif
+ #endif
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	__set_fs(current_thread_info()->addr_limit);
++#endif
++
+ 	reload_tss(vcpu);
+ 
+ 	local_irq_disable();
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
+index 80c22a3..ec2028e 100644
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -1321,12 +1321,12 @@ static void vmcs_write64(unsigned long field, u64 value)
+ #endif
+ }
+ 
+-static void vmcs_clear_bits(unsigned long field, u32 mask)
++static void vmcs_clear_bits(unsigned long field, unsigned long mask)
+ {
+ 	vmcs_writel(field, vmcs_readl(field) & ~mask);
+ }
+ 
+-static void vmcs_set_bits(unsigned long field, u32 mask)
++static void vmcs_set_bits(unsigned long field, unsigned long mask)
+ {
+ 	vmcs_writel(field, vmcs_readl(field) | mask);
+ }
+@@ -1586,7 +1586,11 @@ static void reload_tss(void)
+ 	struct desc_struct *descs;
+ 
+ 	descs = (void *)gdt->address;
++
++	pax_open_kernel();
+ 	descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
++	pax_close_kernel();
++
+ 	load_TR_desc();
+ }
+ 
+@@ -1810,6 +1814,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+ 		vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
+ 		vmcs_writel(HOST_GDTR_BASE, gdt->address);   /* 22.2.4 */
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
++#endif
++
+ 		rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
+ 		vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
+ 		vmx->loaded_vmcs->cpu = cpu;
+@@ -2099,7 +2107,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
+  * reads and returns guest's timestamp counter "register"
+  * guest_tsc = host_tsc + tsc_offset    -- 21.3
+  */
+-static u64 guest_read_tsc(void)
++static u64 __intentional_overflow(-1) guest_read_tsc(void)
+ {
+ 	u64 host_tsc, tsc_offset;
+ 
+@@ -3028,8 +3036,11 @@ static __init int hardware_setup(void)
+ 	if (!cpu_has_vmx_flexpriority())
+ 		flexpriority_enabled = 0;
+ 
+-	if (!cpu_has_vmx_tpr_shadow())
+-		kvm_x86_ops->update_cr8_intercept = NULL;
++	if (!cpu_has_vmx_tpr_shadow()) {
++		pax_open_kernel();
++		*(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
++		pax_close_kernel();
++	}
+ 
+ 	if (enable_ept && !cpu_has_vmx_ept_2m_page())
+ 		kvm_disable_largepages();
+@@ -3040,13 +3051,15 @@ static __init int hardware_setup(void)
+ 	if (!cpu_has_vmx_apicv())
+ 		enable_apicv = 0;
+ 
++	pax_open_kernel();
+ 	if (enable_apicv)
+-		kvm_x86_ops->update_cr8_intercept = NULL;
++		*(void **)&kvm_x86_ops->update_cr8_intercept = NULL;
+ 	else {
+-		kvm_x86_ops->hwapic_irr_update = NULL;
+-		kvm_x86_ops->deliver_posted_interrupt = NULL;
+-		kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
++		*(void **)&kvm_x86_ops->hwapic_irr_update = NULL;
++		*(void **)&kvm_x86_ops->deliver_posted_interrupt = NULL;
++		*(void **)&kvm_x86_ops->sync_pir_to_irr = vmx_sync_pir_to_irr_dummy;
+ 	}
++	pax_close_kernel();
+ 
+ 	if (nested)
+ 		nested_vmx_setup_ctls_msrs();
+@@ -4169,7 +4182,10 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
+ 	unsigned long cr4;
+ 
+ 	vmcs_writel(HOST_CR0, read_cr0() & ~X86_CR0_TS);  /* 22.2.3 */
++
++#ifndef CONFIG_PAX_PER_CPU_PGD
+ 	vmcs_writel(HOST_CR3, read_cr3());  /* 22.2.3  FIXME: shadow tables */
++#endif
+ 
+ 	/* Save the most likely value for this task's CR4 in the VMCS. */
+ 	cr4 = read_cr4();
+@@ -4196,7 +4212,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
+ 	vmcs_writel(HOST_IDTR_BASE, dt.address);   /* 22.2.4 */
+ 	vmx->host_idt_base = dt.address;
+ 
+-	vmcs_writel(HOST_RIP, vmx_return); /* 22.2.5 */
++	vmcs_writel(HOST_RIP, ktla_ktva(vmx_return)); /* 22.2.5 */
+ 
+ 	rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
+ 	vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
+@@ -7287,6 +7303,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+ 		"jmp 2f \n\t"
+ 		"1: " __ex(ASM_VMX_VMRESUME) "\n\t"
+ 		"2: "
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		"ljmp %[cs],$3f\n\t"
++		"3: "
++#endif
++
+ 		/* Save guest registers, load host registers, keep flags */
+ 		"mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
+ 		"pop %0 \n\t"
+@@ -7339,6 +7361,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+ #endif
+ 		[cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
+ 		[wordsize]"i"(sizeof(ulong))
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		,[cs]"i"(__KERNEL_CS)
++#endif
++
+ 	      : "cc", "memory"
+ #ifdef CONFIG_X86_64
+ 		, "rax", "rbx", "rdi", "rsi"
+@@ -7352,7 +7379,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+ 	if (debugctlmsr)
+ 		update_debugctlmsr(debugctlmsr);
+ 
+-#ifndef CONFIG_X86_64
++#ifdef CONFIG_X86_32
+ 	/*
+ 	 * The sysexit path does not restore ds/es, so we must set them to
+ 	 * a reasonable value ourselves.
+@@ -7361,8 +7388,18 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+ 	 * may be executed in interrupt context, which saves and restore segments
+ 	 * around it, nullifying its effect.
+ 	 */
+-	loadsegment(ds, __USER_DS);
+-	loadsegment(es, __USER_DS);
++	loadsegment(ds, __KERNEL_DS);
++	loadsegment(es, __KERNEL_DS);
++	loadsegment(ss, __KERNEL_DS);
++
++#ifdef CONFIG_PAX_KERNEXEC
++	loadsegment(fs, __KERNEL_PERCPU);
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	__set_fs(current_thread_info()->addr_limit);
++#endif
++
+ #endif
+ 
+ 	vcpu->arch.regs_avail = ~((1 << VCPU_REGS_RIP) | (1 << VCPU_REGS_RSP)
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 1777f89..3f70a2c 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -688,6 +688,8 @@ EXPORT_SYMBOL_GPL(kvm_set_cr4);
+ 
+ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
+ {
++	cr3 &= ~CR3_PCID_INVD;
++
+ 	if (cr3 == kvm_read_cr3(vcpu) && !pdptrs_changed(vcpu)) {
+ 		kvm_mmu_sync_roots(vcpu);
+ 		kvm_mmu_flush_tlb(vcpu);
+@@ -1807,8 +1809,8 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
+ {
+ 	struct kvm *kvm = vcpu->kvm;
+ 	int lm = is_long_mode(vcpu);
+-	u8 *blob_addr = lm ? (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_64
+-		: (u8 *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
++	u8 __user *blob_addr = lm ? (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_64
++		: (u8 __user *)(long)kvm->arch.xen_hvm_config.blob_addr_32;
+ 	u8 blob_size = lm ? kvm->arch.xen_hvm_config.blob_size_64
+ 		: kvm->arch.xen_hvm_config.blob_size_32;
+ 	u32 page_num = data & ~PAGE_MASK;
+@@ -2719,6 +2721,8 @@ long kvm_arch_dev_ioctl(struct file *filp,
+ 		if (n < msr_list.nmsrs)
+ 			goto out;
+ 		r = -EFAULT;
++		if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save))
++			goto out;
+ 		if (copy_to_user(user_msr_list->indices, &msrs_to_save,
+ 				 num_msrs_to_save * sizeof(u32)))
+ 			goto out;
+@@ -5533,7 +5537,7 @@ static struct notifier_block pvclock_gtod_notifier = {
+ };
+ #endif
+ 
+-int kvm_arch_init(void *opaque)
++int kvm_arch_init(const void *opaque)
+ {
+ 	int r;
+ 	struct kvm_x86_ops *ops = opaque;
+diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
+index ad1fb5f..fe30b66 100644
+--- a/arch/x86/lguest/boot.c
++++ b/arch/x86/lguest/boot.c
+@@ -1206,9 +1206,10 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
+  * Rebooting also tells the Host we're finished, but the RESTART flag tells the
+  * Launcher to reboot us.
+  */
+-static void lguest_restart(char *reason)
++static __noreturn void lguest_restart(char *reason)
+ {
+ 	hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
++	BUG();
+ }
+ 
+ /*G:050
+diff --git a/arch/x86/lib/atomic64_386_32.S b/arch/x86/lib/atomic64_386_32.S
+index 00933d5..3a64af9 100644
+--- a/arch/x86/lib/atomic64_386_32.S
++++ b/arch/x86/lib/atomic64_386_32.S
+@@ -48,6 +48,10 @@ BEGIN(read)
+ 	movl  (v), %eax
+ 	movl 4(v), %edx
+ RET_ENDP
++BEGIN(read_unchecked)
++	movl  (v), %eax
++	movl 4(v), %edx
++RET_ENDP
+ #undef v
+ 
+ #define v %esi
+@@ -55,6 +59,10 @@ BEGIN(set)
+ 	movl %ebx,  (v)
+ 	movl %ecx, 4(v)
+ RET_ENDP
++BEGIN(set_unchecked)
++	movl %ebx,  (v)
++	movl %ecx, 4(v)
++RET_ENDP
+ #undef v
+ 
+ #define v  %esi
+@@ -70,6 +78,20 @@ RET_ENDP
+ BEGIN(add)
+ 	addl %eax,  (v)
+ 	adcl %edx, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 0f
++	subl %eax,  (v)
++	sbbl %edx, 4(v)
++	int $4
++0:
++	_ASM_EXTABLE(0b, 0b)
++#endif
++
++RET_ENDP
++BEGIN(add_unchecked)
++	addl %eax,  (v)
++	adcl %edx, 4(v)
+ RET_ENDP
+ #undef v
+ 
+@@ -77,6 +99,24 @@ RET_ENDP
+ BEGIN(add_return)
+ 	addl  (v), %eax
+ 	adcl 4(v), %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
++	movl %eax,  (v)
++	movl %edx, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++2:
++#endif
++
++RET_ENDP
++BEGIN(add_return_unchecked)
++	addl  (v), %eax
++	adcl 4(v), %edx
+ 	movl %eax,  (v)
+ 	movl %edx, 4(v)
+ RET_ENDP
+@@ -86,6 +126,20 @@ RET_ENDP
+ BEGIN(sub)
+ 	subl %eax,  (v)
+ 	sbbl %edx, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 0f
++	addl %eax,  (v)
++	adcl %edx, 4(v)
++	int $4
++0:
++	_ASM_EXTABLE(0b, 0b)
++#endif
++
++RET_ENDP
++BEGIN(sub_unchecked)
++	subl %eax,  (v)
++	sbbl %edx, 4(v)
+ RET_ENDP
+ #undef v
+ 
+@@ -96,6 +150,27 @@ BEGIN(sub_return)
+ 	sbbl $0, %edx
+ 	addl  (v), %eax
+ 	adcl 4(v), %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
++	movl %eax,  (v)
++	movl %edx, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++2:
++#endif
++
++RET_ENDP
++BEGIN(sub_return_unchecked)
++	negl %edx
++	negl %eax
++	sbbl $0, %edx
++	addl  (v), %eax
++	adcl 4(v), %edx
+ 	movl %eax,  (v)
+ 	movl %edx, 4(v)
+ RET_ENDP
+@@ -105,6 +180,20 @@ RET_ENDP
+ BEGIN(inc)
+ 	addl $1,  (v)
+ 	adcl $0, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 0f
++	subl $1,  (v)
++	sbbl $0, 4(v)
++	int $4
++0:
++	_ASM_EXTABLE(0b, 0b)
++#endif
++
++RET_ENDP
++BEGIN(inc_unchecked)
++	addl $1,  (v)
++	adcl $0, 4(v)
+ RET_ENDP
+ #undef v
+ 
+@@ -114,6 +203,26 @@ BEGIN(inc_return)
+ 	movl 4(v), %edx
+ 	addl $1, %eax
+ 	adcl $0, %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
++	movl %eax,  (v)
++	movl %edx, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++2:
++#endif
++
++RET_ENDP
++BEGIN(inc_return_unchecked)
++	movl  (v), %eax
++	movl 4(v), %edx
++	addl $1, %eax
++	adcl $0, %edx
+ 	movl %eax,  (v)
+ 	movl %edx, 4(v)
+ RET_ENDP
+@@ -123,6 +232,20 @@ RET_ENDP
+ BEGIN(dec)
+ 	subl $1,  (v)
+ 	sbbl $0, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 0f
++	addl $1,  (v)
++	adcl $0, 4(v)
++	int $4
++0:
++	_ASM_EXTABLE(0b, 0b)
++#endif
++
++RET_ENDP
++BEGIN(dec_unchecked)
++	subl $1,  (v)
++	sbbl $0, 4(v)
+ RET_ENDP
+ #undef v
+ 
+@@ -132,6 +255,26 @@ BEGIN(dec_return)
+ 	movl 4(v), %edx
+ 	subl $1, %eax
+ 	sbbl $0, %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
++	movl %eax,  (v)
++	movl %edx, 4(v)
++
++#ifdef CONFIG_PAX_REFCOUNT
++2:
++#endif
++
++RET_ENDP
++BEGIN(dec_return_unchecked)
++	movl  (v), %eax
++	movl 4(v), %edx
++	subl $1, %eax
++	sbbl $0, %edx
+ 	movl %eax,  (v)
+ 	movl %edx, 4(v)
+ RET_ENDP
+@@ -143,6 +286,13 @@ BEGIN(add_unless)
+ 	adcl %edx, %edi
+ 	addl  (v), %eax
+ 	adcl 4(v), %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
+ 	cmpl %eax, %ecx
+ 	je 3f
+ 1:
+@@ -168,6 +318,13 @@ BEGIN(inc_not_zero)
+ 1:
+ 	addl $1, %eax
+ 	adcl $0, %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
+ 	movl %eax,  (v)
+ 	movl %edx, 4(v)
+ 	movl $1, %eax
+@@ -186,6 +343,13 @@ BEGIN(dec_if_positive)
+ 	movl 4(v), %edx
+ 	subl $1, %eax
+ 	sbbl $0, %edx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 1f)
++#endif
++
+ 	js 1f
+ 	movl %eax,  (v)
+ 	movl %edx, 4(v)
+diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
+index f5cc9eb..51fa319 100644
+--- a/arch/x86/lib/atomic64_cx8_32.S
++++ b/arch/x86/lib/atomic64_cx8_32.S
+@@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
+ 	CFI_STARTPROC
+ 
+ 	read64 %ecx
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(atomic64_read_cx8)
+ 
++ENTRY(atomic64_read_unchecked_cx8)
++	CFI_STARTPROC
++
++	read64 %ecx
++	pax_force_retaddr
++	ret
++	CFI_ENDPROC
++ENDPROC(atomic64_read_unchecked_cx8)
++
+ ENTRY(atomic64_set_cx8)
+ 	CFI_STARTPROC
+ 
+@@ -48,10 +58,25 @@ ENTRY(atomic64_set_cx8)
+ 	cmpxchg8b (%esi)
+ 	jne 1b
+ 
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(atomic64_set_cx8)
+ 
++ENTRY(atomic64_set_unchecked_cx8)
++	CFI_STARTPROC
++
++1:
++/* we don't need LOCK_PREFIX since aligned 64-bit writes
++ * are atomic on 586 and newer */
++	cmpxchg8b (%esi)
++	jne 1b
++
++	pax_force_retaddr
++	ret
++	CFI_ENDPROC
++ENDPROC(atomic64_set_unchecked_cx8)
++
+ ENTRY(atomic64_xchg_cx8)
+ 	CFI_STARTPROC
+ 
+@@ -60,12 +85,13 @@ ENTRY(atomic64_xchg_cx8)
+ 	cmpxchg8b (%esi)
+ 	jne 1b
+ 
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(atomic64_xchg_cx8)
+ 
+-.macro addsub_return func ins insc
+-ENTRY(atomic64_\func\()_return_cx8)
++.macro addsub_return func ins insc unchecked=""
++ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
+ 	CFI_STARTPROC
+ 	SAVE ebp
+ 	SAVE ebx
+@@ -82,27 +108,44 @@ ENTRY(atomic64_\func\()_return_cx8)
+ 	movl %edx, %ecx
+ 	\ins\()l %esi, %ebx
+ 	\insc\()l %edi, %ecx
++
++.ifb \unchecked
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++2:
++	_ASM_EXTABLE(2b, 3f)
++#endif
++.endif
++
+ 	LOCK_PREFIX
+ 	cmpxchg8b (%ebp)
+ 	jne 1b
+-
+-10:
+ 	movl %ebx, %eax
+ 	movl %ecx, %edx
++
++.ifb \unchecked
++#ifdef CONFIG_PAX_REFCOUNT
++3:
++#endif
++.endif
++
+ 	RESTORE edi
+ 	RESTORE esi
+ 	RESTORE ebx
+ 	RESTORE ebp
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+-ENDPROC(atomic64_\func\()_return_cx8)
++ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
+ .endm
+ 
+ addsub_return add add adc
+ addsub_return sub sub sbb
++addsub_return add add adc _unchecked
++addsub_return sub sub sbb _unchecked
+ 
+-.macro incdec_return func ins insc
+-ENTRY(atomic64_\func\()_return_cx8)
++.macro incdec_return func ins insc unchecked=""
++ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
+ 	CFI_STARTPROC
+ 	SAVE ebx
+ 
+@@ -112,21 +155,39 @@ ENTRY(atomic64_\func\()_return_cx8)
+ 	movl %edx, %ecx
+ 	\ins\()l $1, %ebx
+ 	\insc\()l $0, %ecx
++
++.ifb \unchecked
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++2:
++	_ASM_EXTABLE(2b, 3f)
++#endif
++.endif
++
+ 	LOCK_PREFIX
+ 	cmpxchg8b (%esi)
+ 	jne 1b
+ 
+-10:
+ 	movl %ebx, %eax
+ 	movl %ecx, %edx
++
++.ifb \unchecked
++#ifdef CONFIG_PAX_REFCOUNT
++3:
++#endif
++.endif
++
+ 	RESTORE ebx
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+-ENDPROC(atomic64_\func\()_return_cx8)
++ENDPROC(atomic64_\func\()_return\unchecked\()_cx8)
+ .endm
+ 
+ incdec_return inc add adc
+ incdec_return dec sub sbb
++incdec_return inc add adc _unchecked
++incdec_return dec sub sbb _unchecked
+ 
+ ENTRY(atomic64_dec_if_positive_cx8)
+ 	CFI_STARTPROC
+@@ -138,6 +199,13 @@ ENTRY(atomic64_dec_if_positive_cx8)
+ 	movl %edx, %ecx
+ 	subl $1, %ebx
+ 	sbb $0, %ecx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 2f)
++#endif
++
+ 	js 2f
+ 	LOCK_PREFIX
+ 	cmpxchg8b (%esi)
+@@ -147,6 +215,7 @@ ENTRY(atomic64_dec_if_positive_cx8)
+ 	movl %ebx, %eax
+ 	movl %ecx, %edx
+ 	RESTORE ebx
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(atomic64_dec_if_positive_cx8)
+@@ -171,6 +240,13 @@ ENTRY(atomic64_add_unless_cx8)
+ 	movl %edx, %ecx
+ 	addl %ebp, %ebx
+ 	adcl %edi, %ecx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 3f)
++#endif
++
+ 	LOCK_PREFIX
+ 	cmpxchg8b (%esi)
+ 	jne 1b
+@@ -181,6 +257,7 @@ ENTRY(atomic64_add_unless_cx8)
+ 	CFI_ADJUST_CFA_OFFSET -8
+ 	RESTORE ebx
+ 	RESTORE ebp
++	pax_force_retaddr
+ 	ret
+ 4:
+ 	cmpl %edx, 4(%esp)
+@@ -203,6 +280,13 @@ ENTRY(atomic64_inc_not_zero_cx8)
+ 	xorl %ecx, %ecx
+ 	addl $1, %ebx
+ 	adcl %edx, %ecx
++
++#ifdef CONFIG_PAX_REFCOUNT
++	into
++1234:
++	_ASM_EXTABLE(1234b, 3f)
++#endif
++
+ 	LOCK_PREFIX
+ 	cmpxchg8b (%esi)
+ 	jne 1b
+@@ -210,6 +294,7 @@ ENTRY(atomic64_inc_not_zero_cx8)
+ 	movl $1, %eax
+ 3:
+ 	RESTORE ebx
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(atomic64_inc_not_zero_cx8)
+diff --git a/arch/x86/lib/checksum_32.S b/arch/x86/lib/checksum_32.S
+index e78b8eee..7e173a8 100644
+--- a/arch/x86/lib/checksum_32.S
++++ b/arch/x86/lib/checksum_32.S
+@@ -29,7 +29,8 @@
+ #include <asm/dwarf2.h>
+ #include <asm/errno.h>
+ #include <asm/asm.h>
+-				
++#include <asm/segment.h>
++
+ /*
+  * computes a partial checksum, e.g. for TCP/UDP fragments
+  */
+@@ -293,9 +294,24 @@ unsigned int csum_partial_copy_generic (const char *src, char *dst,
+ 
+ #define ARGBASE 16		
+ #define FP		12
+-		
+-ENTRY(csum_partial_copy_generic)
++
++ENTRY(csum_partial_copy_generic_to_user)
+ 	CFI_STARTPROC
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pushl_cfi %gs
++	popl_cfi %es
++	jmp csum_partial_copy_generic
++#endif
++
++ENTRY(csum_partial_copy_generic_from_user)
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pushl_cfi %gs
++	popl_cfi %ds
++#endif
++
++ENTRY(csum_partial_copy_generic)
+ 	subl  $4,%esp	
+ 	CFI_ADJUST_CFA_OFFSET 4
+ 	pushl_cfi %edi
+@@ -317,7 +333,7 @@ ENTRY(csum_partial_copy_generic)
+ 	jmp 4f
+ SRC(1:	movw (%esi), %bx	)
+ 	addl $2, %esi
+-DST(	movw %bx, (%edi)	)
++DST(	movw %bx, %es:(%edi)	)
+ 	addl $2, %edi
+ 	addw %bx, %ax	
+ 	adcl $0, %eax
+@@ -329,30 +345,30 @@ DST(	movw %bx, (%edi)	)
+ SRC(1:	movl (%esi), %ebx	)
+ SRC(	movl 4(%esi), %edx	)
+ 	adcl %ebx, %eax
+-DST(	movl %ebx, (%edi)	)
++DST(	movl %ebx, %es:(%edi)	)
+ 	adcl %edx, %eax
+-DST(	movl %edx, 4(%edi)	)
++DST(	movl %edx, %es:4(%edi)	)
+ 
+ SRC(	movl 8(%esi), %ebx	)
+ SRC(	movl 12(%esi), %edx	)
+ 	adcl %ebx, %eax
+-DST(	movl %ebx, 8(%edi)	)
++DST(	movl %ebx, %es:8(%edi)	)
+ 	adcl %edx, %eax
+-DST(	movl %edx, 12(%edi)	)
++DST(	movl %edx, %es:12(%edi)	)
+ 
+ SRC(	movl 16(%esi), %ebx 	)
+ SRC(	movl 20(%esi), %edx	)
+ 	adcl %ebx, %eax
+-DST(	movl %ebx, 16(%edi)	)
++DST(	movl %ebx, %es:16(%edi)	)
+ 	adcl %edx, %eax
+-DST(	movl %edx, 20(%edi)	)
++DST(	movl %edx, %es:20(%edi)	)
+ 
+ SRC(	movl 24(%esi), %ebx	)
+ SRC(	movl 28(%esi), %edx	)
+ 	adcl %ebx, %eax
+-DST(	movl %ebx, 24(%edi)	)
++DST(	movl %ebx, %es:24(%edi)	)
+ 	adcl %edx, %eax
+-DST(	movl %edx, 28(%edi)	)
++DST(	movl %edx, %es:28(%edi)	)
+ 
+ 	lea 32(%esi), %esi
+ 	lea 32(%edi), %edi
+@@ -366,7 +382,7 @@ DST(	movl %edx, 28(%edi)	)
+ 	shrl $2, %edx			# This clears CF
+ SRC(3:	movl (%esi), %ebx	)
+ 	adcl %ebx, %eax
+-DST(	movl %ebx, (%edi)	)
++DST(	movl %ebx, %es:(%edi)	)
+ 	lea 4(%esi), %esi
+ 	lea 4(%edi), %edi
+ 	dec %edx
+@@ -378,12 +394,12 @@ DST(	movl %ebx, (%edi)	)
+ 	jb 5f
+ SRC(	movw (%esi), %cx	)
+ 	leal 2(%esi), %esi
+-DST(	movw %cx, (%edi)	)
++DST(	movw %cx, %es:(%edi)	)
+ 	leal 2(%edi), %edi
+ 	je 6f
+ 	shll $16,%ecx
+ SRC(5:	movb (%esi), %cl	)
+-DST(	movb %cl, (%edi)	)
++DST(	movb %cl, %es:(%edi)	)
+ 6:	addl %ecx, %eax
+ 	adcl $0, %eax
+ 7:
+@@ -394,7 +410,7 @@ DST(	movb %cl, (%edi)	)
+ 
+ 6001:
+ 	movl ARGBASE+20(%esp), %ebx	# src_err_ptr
+-	movl $-EFAULT, (%ebx)
++	movl $-EFAULT, %ss:(%ebx)
+ 
+ 	# zero the complete destination - computing the rest
+ 	# is too much work 
+@@ -407,11 +423,15 @@ DST(	movb %cl, (%edi)	)
+ 
+ 6002:
+ 	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
+-	movl $-EFAULT,(%ebx)
++	movl $-EFAULT,%ss:(%ebx)
+ 	jmp 5000b
+ 
+ .previous
+ 
++	pushl_cfi %ss
++	popl_cfi %ds
++	pushl_cfi %ss
++	popl_cfi %es
+ 	popl_cfi %ebx
+ 	CFI_RESTORE ebx
+ 	popl_cfi %esi
+@@ -421,26 +441,43 @@ DST(	movb %cl, (%edi)	)
+ 	popl_cfi %ecx			# equivalent to addl $4,%esp
+ 	ret	
+ 	CFI_ENDPROC
+-ENDPROC(csum_partial_copy_generic)
++ENDPROC(csum_partial_copy_generic_to_user)
+ 
+ #else
+ 
+ /* Version for PentiumII/PPro */
+ 
+ #define ROUND1(x) \
++	nop; nop; nop;				\
+ 	SRC(movl x(%esi), %ebx	)	;	\
+ 	addl %ebx, %eax			;	\
+-	DST(movl %ebx, x(%edi)	)	; 
++	DST(movl %ebx, %es:x(%edi))	;
+ 
+ #define ROUND(x) \
++	nop; nop; nop;				\
+ 	SRC(movl x(%esi), %ebx	)	;	\
+ 	adcl %ebx, %eax			;	\
+-	DST(movl %ebx, x(%edi)	)	;
++	DST(movl %ebx, %es:x(%edi))	;
+ 
+ #define ARGBASE 12
+-		
+-ENTRY(csum_partial_copy_generic)
++
++ENTRY(csum_partial_copy_generic_to_user)
+ 	CFI_STARTPROC
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pushl_cfi %gs
++	popl_cfi %es
++	jmp csum_partial_copy_generic
++#endif
++
++ENTRY(csum_partial_copy_generic_from_user)
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pushl_cfi %gs
++	popl_cfi %ds
++#endif
++
++ENTRY(csum_partial_copy_generic)
+ 	pushl_cfi %ebx
+ 	CFI_REL_OFFSET ebx, 0
+ 	pushl_cfi %edi
+@@ -461,7 +498,7 @@ ENTRY(csum_partial_copy_generic)
+ 	subl %ebx, %edi  
+ 	lea  -1(%esi),%edx
+ 	andl $-32,%edx
+-	lea 3f(%ebx,%ebx), %ebx
++	lea 3f(%ebx,%ebx,2), %ebx
+ 	testl %esi, %esi 
+ 	jmp *%ebx
+ 1:	addl $64,%esi
+@@ -482,19 +519,19 @@ ENTRY(csum_partial_copy_generic)
+ 	jb 5f
+ SRC(	movw (%esi), %dx         )
+ 	leal 2(%esi), %esi
+-DST(	movw %dx, (%edi)         )
++DST(	movw %dx, %es:(%edi)     )
+ 	leal 2(%edi), %edi
+ 	je 6f
+ 	shll $16,%edx
+ 5:
+ SRC(	movb (%esi), %dl         )
+-DST(	movb %dl, (%edi)         )
++DST(	movb %dl, %es:(%edi)     )
+ 6:	addl %edx, %eax
+ 	adcl $0, %eax
+ 7:
+ .section .fixup, "ax"
+ 6001:	movl	ARGBASE+20(%esp), %ebx	# src_err_ptr	
+-	movl $-EFAULT, (%ebx)
++	movl $-EFAULT, %ss:(%ebx)
+ 	# zero the complete destination (computing the rest is too much work)
+ 	movl ARGBASE+8(%esp),%edi	# dst
+ 	movl ARGBASE+12(%esp),%ecx	# len
+@@ -502,10 +539,17 @@ DST(	movb %dl, (%edi)         )
+ 	rep; stosb
+ 	jmp 7b
+ 6002:	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
+-	movl $-EFAULT, (%ebx)
++	movl $-EFAULT, %ss:(%ebx)
+ 	jmp  7b			
+ .previous				
+ 
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	pushl_cfi %ss
++	popl_cfi %ds
++	pushl_cfi %ss
++	popl_cfi %es
++#endif
++
+ 	popl_cfi %esi
+ 	CFI_RESTORE esi
+ 	popl_cfi %edi
+@@ -514,7 +558,7 @@ DST(	movb %dl, (%edi)         )
+ 	CFI_RESTORE ebx
+ 	ret
+ 	CFI_ENDPROC
+-ENDPROC(csum_partial_copy_generic)
++ENDPROC(csum_partial_copy_generic_to_user)
+ 				
+ #undef ROUND
+ #undef ROUND1		
+diff --git a/arch/x86/lib/clear_page_64.S b/arch/x86/lib/clear_page_64.S
+index f2145cf..cea889d 100644
+--- a/arch/x86/lib/clear_page_64.S
++++ b/arch/x86/lib/clear_page_64.S
+@@ -11,6 +11,7 @@ ENTRY(clear_page_c)
+ 	movl $4096/8,%ecx
+ 	xorl %eax,%eax
+ 	rep stosq
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(clear_page_c)
+@@ -20,6 +21,7 @@ ENTRY(clear_page_c_e)
+ 	movl $4096,%ecx
+ 	xorl %eax,%eax
+ 	rep stosb
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(clear_page_c_e)
+@@ -43,6 +45,7 @@ ENTRY(clear_page)
+ 	leaq	64(%rdi),%rdi
+ 	jnz	.Lloop
+ 	nop
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ .Lclear_page_end:
+@@ -58,7 +61,7 @@ ENDPROC(clear_page)
+ 
+ #include <asm/cpufeature.h>
+ 
+-	.section .altinstr_replacement,"ax"
++	.section .altinstr_replacement,"a"
+ 1:	.byte 0xeb					/* jmp <disp8> */
+ 	.byte (clear_page_c - clear_page) - (2f - 1b)	/* offset */
+ 2:	.byte 0xeb					/* jmp <disp8> */
+diff --git a/arch/x86/lib/cmpxchg16b_emu.S b/arch/x86/lib/cmpxchg16b_emu.S
+index 1e572c5..2a162cd 100644
+--- a/arch/x86/lib/cmpxchg16b_emu.S
++++ b/arch/x86/lib/cmpxchg16b_emu.S
+@@ -53,11 +53,13 @@ this_cpu_cmpxchg16b_emu:
+ 
+ 	popf
+ 	mov $1, %al
++	pax_force_retaddr
+ 	ret
+ 
+  not_same:
+ 	popf
+ 	xor %al,%al
++	pax_force_retaddr
+ 	ret
+ 
+ CFI_ENDPROC
+diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
+index 176cca6..e0d658e 100644
+--- a/arch/x86/lib/copy_page_64.S
++++ b/arch/x86/lib/copy_page_64.S
+@@ -9,6 +9,7 @@ copy_page_rep:
+ 	CFI_STARTPROC
+ 	movl	$4096/8, %ecx
+ 	rep	movsq
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(copy_page_rep)
+@@ -24,8 +25,8 @@ ENTRY(copy_page)
+ 	CFI_ADJUST_CFA_OFFSET 2*8
+ 	movq	%rbx,	(%rsp)
+ 	CFI_REL_OFFSET rbx, 0
+-	movq	%r12,	1*8(%rsp)
+-	CFI_REL_OFFSET r12, 1*8
++	movq	%r13,	1*8(%rsp)
++	CFI_REL_OFFSET r13, 1*8
+ 
+ 	movl	$(4096/64)-5,	%ecx
+ 	.p2align 4
+@@ -38,7 +39,7 @@ ENTRY(copy_page)
+ 	movq	0x8*4(%rsi), %r9
+ 	movq	0x8*5(%rsi), %r10
+ 	movq	0x8*6(%rsi), %r11
+-	movq	0x8*7(%rsi), %r12
++	movq	0x8*7(%rsi), %r13
+ 
+ 	prefetcht0 5*64(%rsi)
+ 
+@@ -49,7 +50,7 @@ ENTRY(copy_page)
+ 	movq	%r9,  0x8*4(%rdi)
+ 	movq	%r10, 0x8*5(%rdi)
+ 	movq	%r11, 0x8*6(%rdi)
+-	movq	%r12, 0x8*7(%rdi)
++	movq	%r13, 0x8*7(%rdi)
+ 
+ 	leaq	64 (%rsi), %rsi
+ 	leaq	64 (%rdi), %rdi
+@@ -68,7 +69,7 @@ ENTRY(copy_page)
+ 	movq	0x8*4(%rsi), %r9
+ 	movq	0x8*5(%rsi), %r10
+ 	movq	0x8*6(%rsi), %r11
+-	movq	0x8*7(%rsi), %r12
++	movq	0x8*7(%rsi), %r13
+ 
+ 	movq	%rax, 0x8*0(%rdi)
+ 	movq	%rbx, 0x8*1(%rdi)
+@@ -77,7 +78,7 @@ ENTRY(copy_page)
+ 	movq	%r9,  0x8*4(%rdi)
+ 	movq	%r10, 0x8*5(%rdi)
+ 	movq	%r11, 0x8*6(%rdi)
+-	movq	%r12, 0x8*7(%rdi)
++	movq	%r13, 0x8*7(%rdi)
+ 
+ 	leaq	64(%rdi), %rdi
+ 	leaq	64(%rsi), %rsi
+@@ -85,10 +86,11 @@ ENTRY(copy_page)
+ 
+ 	movq	(%rsp), %rbx
+ 	CFI_RESTORE rbx
+-	movq	1*8(%rsp), %r12
+-	CFI_RESTORE r12
++	movq	1*8(%rsp), %r13
++	CFI_RESTORE r13
+ 	addq	$2*8, %rsp
+ 	CFI_ADJUST_CFA_OFFSET -2*8
++	pax_force_retaddr
+ 	ret
+ .Lcopy_page_end:
+ 	CFI_ENDPROC
+@@ -99,7 +101,7 @@ ENDPROC(copy_page)
+ 
+ #include <asm/cpufeature.h>
+ 
+-	.section .altinstr_replacement,"ax"
++	.section .altinstr_replacement,"a"
+ 1:	.byte 0xeb					/* jmp <disp8> */
+ 	.byte (copy_page_rep - copy_page) - (2f - 1b)	/* offset */
+ 2:
+diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
+index dee945d..a84067b 100644
+--- a/arch/x86/lib/copy_user_64.S
++++ b/arch/x86/lib/copy_user_64.S
+@@ -18,31 +18,7 @@
+ #include <asm/alternative-asm.h>
+ #include <asm/asm.h>
+ #include <asm/smap.h>
+-
+-/*
+- * By placing feature2 after feature1 in altinstructions section, we logically
+- * implement:
+- * If CPU has feature2, jmp to alt2 is used
+- * else if CPU has feature1, jmp to alt1 is used
+- * else jmp to orig is used.
+- */
+-	.macro ALTERNATIVE_JUMP feature1,feature2,orig,alt1,alt2
+-0:
+-	.byte 0xe9	/* 32bit jump */
+-	.long \orig-1f	/* by default jump to orig */
+-1:
+-	.section .altinstr_replacement,"ax"
+-2:	.byte 0xe9			/* near jump with 32bit immediate */
+-	.long \alt1-1b /* offset */   /* or alternatively to alt1 */
+-3:	.byte 0xe9			/* near jump with 32bit immediate */
+-	.long \alt2-1b /* offset */   /* or alternatively to alt2 */
+-	.previous
+-
+-	.section .altinstructions,"a"
+-	altinstruction_entry 0b,2b,\feature1,5,5
+-	altinstruction_entry 0b,3b,\feature2,5,5
+-	.previous
+-	.endm
++#include <asm/pgtable.h>
+ 
+ 	.macro ALIGN_DESTINATION
+ #ifdef FIX_ALIGNMENT
+@@ -70,52 +46,6 @@
+ #endif
+ 	.endm
+ 
+-/* Standard copy_to_user with segment limit checking */
+-ENTRY(_copy_to_user)
+-	CFI_STARTPROC
+-	GET_THREAD_INFO(%rax)
+-	movq %rdi,%rcx
+-	addq %rdx,%rcx
+-	jc bad_to_user
+-	cmpq TI_addr_limit(%rax),%rcx
+-	ja bad_to_user
+-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS,	\
+-		copy_user_generic_unrolled,copy_user_generic_string,	\
+-		copy_user_enhanced_fast_string
+-	CFI_ENDPROC
+-ENDPROC(_copy_to_user)
+-
+-/* Standard copy_from_user with segment limit checking */
+-ENTRY(_copy_from_user)
+-	CFI_STARTPROC
+-	GET_THREAD_INFO(%rax)
+-	movq %rsi,%rcx
+-	addq %rdx,%rcx
+-	jc bad_from_user
+-	cmpq TI_addr_limit(%rax),%rcx
+-	ja bad_from_user
+-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS,	\
+-		copy_user_generic_unrolled,copy_user_generic_string,	\
+-		copy_user_enhanced_fast_string
+-	CFI_ENDPROC
+-ENDPROC(_copy_from_user)
+-
+-	.section .fixup,"ax"
+-	/* must zero dest */
+-ENTRY(bad_from_user)
+-bad_from_user:
+-	CFI_STARTPROC
+-	movl %edx,%ecx
+-	xorl %eax,%eax
+-	rep
+-	stosb
+-bad_to_user:
+-	movl %edx,%eax
+-	ret
+-	CFI_ENDPROC
+-ENDPROC(bad_from_user)
+-	.previous
+-
+ /*
+  * copy_user_generic_unrolled - memory copy with exception handling.
+  * This version is for CPUs like P4 that don't have efficient micro
+@@ -131,6 +61,7 @@ ENDPROC(bad_from_user)
+  */
+ ENTRY(copy_user_generic_unrolled)
+ 	CFI_STARTPROC
++	ASM_PAX_OPEN_USERLAND
+ 	ASM_STAC
+ 	cmpl $8,%edx
+ 	jb 20f		/* less then 8 bytes, go to byte copy loop */
+@@ -180,6 +111,8 @@ ENTRY(copy_user_generic_unrolled)
+ 	jnz 21b
+ 23:	xor %eax,%eax
+ 	ASM_CLAC
++	ASM_PAX_CLOSE_USERLAND
++	pax_force_retaddr
+ 	ret
+ 
+ 	.section .fixup,"ax"
+@@ -235,6 +168,7 @@ ENDPROC(copy_user_generic_unrolled)
+  */
+ ENTRY(copy_user_generic_string)
+ 	CFI_STARTPROC
++	ASM_PAX_OPEN_USERLAND
+ 	ASM_STAC
+ 	cmpl $8,%edx
+ 	jb 2f		/* less than 8 bytes, go to byte copy loop */
+@@ -249,6 +183,8 @@ ENTRY(copy_user_generic_string)
+ 	movsb
+ 	xorl %eax,%eax
+ 	ASM_CLAC
++	ASM_PAX_CLOSE_USERLAND
++	pax_force_retaddr
+ 	ret
+ 
+ 	.section .fixup,"ax"
+@@ -276,12 +212,15 @@ ENDPROC(copy_user_generic_string)
+  */
+ ENTRY(copy_user_enhanced_fast_string)
+ 	CFI_STARTPROC
++	ASM_PAX_OPEN_USERLAND
+ 	ASM_STAC
+ 	movl %edx,%ecx
+ 1:	rep
+ 	movsb
+ 	xorl %eax,%eax
+ 	ASM_CLAC
++	ASM_PAX_CLOSE_USERLAND
++	pax_force_retaddr
+ 	ret
+ 
+ 	.section .fixup,"ax"
+diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
+index 6a4f43c..c70fb52 100644
+--- a/arch/x86/lib/copy_user_nocache_64.S
++++ b/arch/x86/lib/copy_user_nocache_64.S
+@@ -8,6 +8,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <asm/dwarf2.h>
++#include <asm/alternative-asm.h>
+ 
+ #define FIX_ALIGNMENT 1
+ 
+@@ -16,6 +17,7 @@
+ #include <asm/thread_info.h>
+ #include <asm/asm.h>
+ #include <asm/smap.h>
++#include <asm/pgtable.h>
+ 
+ 	.macro ALIGN_DESTINATION
+ #ifdef FIX_ALIGNMENT
+@@ -49,6 +51,16 @@
+  */
+ ENTRY(__copy_user_nocache)
+ 	CFI_STARTPROC
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	mov pax_user_shadow_base,%rcx
++	cmp %rcx,%rsi
++	jae 1f
++	add %rcx,%rsi
++1:
++#endif
++
++	ASM_PAX_OPEN_USERLAND
+ 	ASM_STAC
+ 	cmpl $8,%edx
+ 	jb 20f		/* less then 8 bytes, go to byte copy loop */
+@@ -98,7 +110,9 @@ ENTRY(__copy_user_nocache)
+ 	jnz 21b
+ 23:	xorl %eax,%eax
+ 	ASM_CLAC
++	ASM_PAX_CLOSE_USERLAND
+ 	sfence
++	pax_force_retaddr
+ 	ret
+ 
+ 	.section .fixup,"ax"
+diff --git a/arch/x86/lib/csum-copy_64.S b/arch/x86/lib/csum-copy_64.S
+index 2419d5f..fe52d0e 100644
+--- a/arch/x86/lib/csum-copy_64.S
++++ b/arch/x86/lib/csum-copy_64.S
+@@ -9,6 +9,7 @@
+ #include <asm/dwarf2.h>
+ #include <asm/errno.h>
+ #include <asm/asm.h>
++#include <asm/alternative-asm.h>
+ 
+ /*
+  * Checksum copy with exception handling.
+@@ -56,8 +57,8 @@ ENTRY(csum_partial_copy_generic)
+ 	CFI_ADJUST_CFA_OFFSET 7*8
+ 	movq  %rbx, 2*8(%rsp)
+ 	CFI_REL_OFFSET rbx, 2*8
+-	movq  %r12, 3*8(%rsp)
+-	CFI_REL_OFFSET r12, 3*8
++	movq  %r15, 3*8(%rsp)
++	CFI_REL_OFFSET r15, 3*8
+ 	movq  %r14, 4*8(%rsp)
+ 	CFI_REL_OFFSET r14, 4*8
+ 	movq  %r13, 5*8(%rsp)
+@@ -72,16 +73,16 @@ ENTRY(csum_partial_copy_generic)
+ 	movl  %edx, %ecx
+ 
+ 	xorl  %r9d, %r9d
+-	movq  %rcx, %r12
++	movq  %rcx, %r15
+ 
+-	shrq  $6, %r12
++	shrq  $6, %r15
+ 	jz	.Lhandle_tail       /* < 64 */
+ 
+ 	clc
+ 
+ 	/* main loop. clear in 64 byte blocks */
+ 	/* r9: zero, r8: temp2, rbx: temp1, rax: sum, rcx: saved length */
+-	/* r11:	temp3, rdx: temp4, r12 loopcnt */
++	/* r11:	temp3, rdx: temp4, r15 loopcnt */
+ 	/* r10:	temp5, rbp: temp6, r14 temp7, r13 temp8 */
+ 	.p2align 4
+ .Lloop:
+@@ -115,7 +116,7 @@ ENTRY(csum_partial_copy_generic)
+ 	adcq  %r14, %rax
+ 	adcq  %r13, %rax
+ 
+-	decl %r12d
++	decl %r15d
+ 
+ 	dest
+ 	movq %rbx, (%rsi)
+@@ -210,8 +211,8 @@ ENTRY(csum_partial_copy_generic)
+ .Lende:
+ 	movq 2*8(%rsp), %rbx
+ 	CFI_RESTORE rbx
+-	movq 3*8(%rsp), %r12
+-	CFI_RESTORE r12
++	movq 3*8(%rsp), %r15
++	CFI_RESTORE r15
+ 	movq 4*8(%rsp), %r14
+ 	CFI_RESTORE r14
+ 	movq 5*8(%rsp), %r13
+@@ -220,6 +221,7 @@ ENTRY(csum_partial_copy_generic)
+ 	CFI_RESTORE rbp
+ 	addq $7*8, %rsp
+ 	CFI_ADJUST_CFA_OFFSET -7*8
++	pax_force_retaddr
+ 	ret
+ 	CFI_RESTORE_STATE
+ 
+diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c
+index 7609e0e..b449b98 100644
+--- a/arch/x86/lib/csum-wrappers_64.c
++++ b/arch/x86/lib/csum-wrappers_64.c
+@@ -53,10 +53,12 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
+ 			len -= 2;
+ 		}
+ 	}
++	pax_open_userland();
+ 	stac();
+-	isum = csum_partial_copy_generic((__force const void *)src,
++	isum = csum_partial_copy_generic((const void __force_kernel *)____m(src),
+ 				dst, len, isum, errp, NULL);
+ 	clac();
++	pax_close_userland();
+ 	if (unlikely(*errp))
+ 		goto out_err;
+ 
+@@ -110,10 +112,12 @@ csum_partial_copy_to_user(const void *src, void __user *dst,
+ 	}
+ 
+ 	*errp = 0;
++	pax_open_userland();
+ 	stac();
+-	ret = csum_partial_copy_generic(src, (void __force *)dst,
++	ret = csum_partial_copy_generic(src, (void __force_kernel *)____m(dst),
+ 					len, isum, NULL, errp);
+ 	clac();
++	pax_close_userland();
+ 	return ret;
+ }
+ EXPORT_SYMBOL(csum_partial_copy_to_user);
+diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
+index a451235..a74bfa3 100644
+--- a/arch/x86/lib/getuser.S
++++ b/arch/x86/lib/getuser.S
+@@ -33,17 +33,40 @@
+ #include <asm/thread_info.h>
+ #include <asm/asm.h>
+ #include <asm/smap.h>
++#include <asm/segment.h>
++#include <asm/pgtable.h>
++#include <asm/alternative-asm.h>
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define __copyuser_seg gs;
++#else
++#define __copyuser_seg
++#endif
+ 
+ 	.text
+ ENTRY(__get_user_1)
+ 	CFI_STARTPROC
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+ 	GET_THREAD_INFO(%_ASM_DX)
+ 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ 	jae bad_get_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_DX
++	cmp %_ASM_DX,%_ASM_AX
++	jae 1234f
++	add %_ASM_DX,%_ASM_AX
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-1:	movzbl (%_ASM_AX),%edx
++1:	__copyuser_seg movzbl (%_ASM_AX),%edx
+ 	xor %eax,%eax
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(__get_user_1)
+@@ -51,14 +74,28 @@ ENDPROC(__get_user_1)
+ ENTRY(__get_user_2)
+ 	CFI_STARTPROC
+ 	add $1,%_ASM_AX
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+ 	jc bad_get_user
+ 	GET_THREAD_INFO(%_ASM_DX)
+ 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ 	jae bad_get_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_DX
++	cmp %_ASM_DX,%_ASM_AX
++	jae 1234f
++	add %_ASM_DX,%_ASM_AX
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-2:	movzwl -1(%_ASM_AX),%edx
++2:	__copyuser_seg movzwl -1(%_ASM_AX),%edx
+ 	xor %eax,%eax
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(__get_user_2)
+@@ -66,14 +103,28 @@ ENDPROC(__get_user_2)
+ ENTRY(__get_user_4)
+ 	CFI_STARTPROC
+ 	add $3,%_ASM_AX
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
+ 	jc bad_get_user
+ 	GET_THREAD_INFO(%_ASM_DX)
+ 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ 	jae bad_get_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_DX
++	cmp %_ASM_DX,%_ASM_AX
++	jae 1234f
++	add %_ASM_DX,%_ASM_AX
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-3:	movl -3(%_ASM_AX),%edx
++3:	__copyuser_seg movl -3(%_ASM_AX),%edx
+ 	xor %eax,%eax
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(__get_user_4)
+@@ -86,10 +137,20 @@ ENTRY(__get_user_8)
+ 	GET_THREAD_INFO(%_ASM_DX)
+ 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ 	jae bad_get_user
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++	mov pax_user_shadow_base,%_ASM_DX
++	cmp %_ASM_DX,%_ASM_AX
++	jae 1234f
++	add %_ASM_DX,%_ASM_AX
++1234:
++#endif
++
+ 	ASM_STAC
+ 4:	movq -7(%_ASM_AX),%rdx
+ 	xor %eax,%eax
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ #else
+ 	add $7,%_ASM_AX
+@@ -98,10 +159,11 @@ ENTRY(__get_user_8)
+ 	cmp TI_addr_limit(%_ASM_DX),%_ASM_AX
+ 	jae bad_get_user_8
+ 	ASM_STAC
+-4:	movl -7(%_ASM_AX),%edx
+-5:	movl -3(%_ASM_AX),%ecx
++4:	__copyuser_seg movl -7(%_ASM_AX),%edx
++5:	__copyuser_seg movl -3(%_ASM_AX),%ecx
+ 	xor %eax,%eax
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ #endif
+ 	CFI_ENDPROC
+@@ -113,6 +175,7 @@ bad_get_user:
+ 	xor %edx,%edx
+ 	mov $(-EFAULT),%_ASM_AX
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ END(bad_get_user)
+@@ -124,6 +187,7 @@ bad_get_user_8:
+ 	xor %ecx,%ecx
+ 	mov $(-EFAULT),%_ASM_AX
+ 	ASM_CLAC
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ END(bad_get_user_8)
+diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
+index 54fcffe..7be149e 100644
+--- a/arch/x86/lib/insn.c
++++ b/arch/x86/lib/insn.c
+@@ -20,8 +20,10 @@
+ 
+ #ifdef __KERNEL__
+ #include <linux/string.h>
++#include <asm/pgtable_types.h>
+ #else
+ #include <string.h>
++#define ktla_ktva(addr) addr
+ #endif
+ #include <asm/inat.h>
+ #include <asm/insn.h>
+@@ -53,8 +55,8 @@
+ void insn_init(struct insn *insn, const void *kaddr, int x86_64)
+ {
+ 	memset(insn, 0, sizeof(*insn));
+-	insn->kaddr = kaddr;
+-	insn->next_byte = kaddr;
++	insn->kaddr = ktla_ktva(kaddr);
++	insn->next_byte = ktla_ktva(kaddr);
+ 	insn->x86_64 = x86_64 ? 1 : 0;
+ 	insn->opnd_bytes = 4;
+ 	if (x86_64)
+diff --git a/arch/x86/lib/iomap_copy_64.S b/arch/x86/lib/iomap_copy_64.S
+index 05a95e7..326f2fa 100644
+--- a/arch/x86/lib/iomap_copy_64.S
++++ b/arch/x86/lib/iomap_copy_64.S
+@@ -17,6 +17,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <asm/dwarf2.h>
++#include <asm/alternative-asm.h>
+ 
+ /*
+  * override generic version in lib/iomap_copy.c
+@@ -25,6 +26,7 @@ ENTRY(__iowrite32_copy)
+ 	CFI_STARTPROC
+ 	movl %edx,%ecx
+ 	rep movsd
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(__iowrite32_copy)
+diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
+index 56313a3..0db417e 100644
+--- a/arch/x86/lib/memcpy_64.S
++++ b/arch/x86/lib/memcpy_64.S
+@@ -24,7 +24,7 @@
+  * This gets patched over the unrolled variant (below) via the
+  * alternative instructions framework:
+  */
+-	.section .altinstr_replacement, "ax", @progbits
++	.section .altinstr_replacement, "a", @progbits
+ .Lmemcpy_c:
+ 	movq %rdi, %rax
+ 	movq %rdx, %rcx
+@@ -33,6 +33,7 @@
+ 	rep movsq
+ 	movl %edx, %ecx
+ 	rep movsb
++	pax_force_retaddr
+ 	ret
+ .Lmemcpy_e:
+ 	.previous
+@@ -44,11 +45,12 @@
+  * This gets patched over the unrolled variant (below) via the
+  * alternative instructions framework:
+  */
+-	.section .altinstr_replacement, "ax", @progbits
++	.section .altinstr_replacement, "a", @progbits
+ .Lmemcpy_c_e:
+ 	movq %rdi, %rax
+ 	movq %rdx, %rcx
+ 	rep movsb
++	pax_force_retaddr
+ 	ret
+ .Lmemcpy_e_e:
+ 	.previous
+@@ -136,6 +138,7 @@ ENTRY(memcpy)
+ 	movq %r9,	1*8(%rdi)
+ 	movq %r10,	-2*8(%rdi, %rdx)
+ 	movq %r11,	-1*8(%rdi, %rdx)
++	pax_force_retaddr
+ 	retq
+ 	.p2align 4
+ .Lless_16bytes:
+@@ -148,6 +151,7 @@ ENTRY(memcpy)
+ 	movq -1*8(%rsi, %rdx),	%r9
+ 	movq %r8,	0*8(%rdi)
+ 	movq %r9,	-1*8(%rdi, %rdx)
++	pax_force_retaddr
+ 	retq
+ 	.p2align 4
+ .Lless_8bytes:
+@@ -161,6 +165,7 @@ ENTRY(memcpy)
+ 	movl -4(%rsi, %rdx), %r8d
+ 	movl %ecx, (%rdi)
+ 	movl %r8d, -4(%rdi, %rdx)
++	pax_force_retaddr
+ 	retq
+ 	.p2align 4
+ .Lless_3bytes:
+@@ -179,6 +184,7 @@ ENTRY(memcpy)
+ 	movb %cl, (%rdi)
+ 
+ .Lend:
++	pax_force_retaddr
+ 	retq
+ 	CFI_ENDPROC
+ ENDPROC(memcpy)
+diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
+index 65268a6..dd1de11 100644
+--- a/arch/x86/lib/memmove_64.S
++++ b/arch/x86/lib/memmove_64.S
+@@ -202,14 +202,16 @@ ENTRY(memmove)
+ 	movb (%rsi), %r11b
+ 	movb %r11b, (%rdi)
+ 13:
++	pax_force_retaddr
+ 	retq
+ 	CFI_ENDPROC
+ 
+-	.section .altinstr_replacement,"ax"
++	.section .altinstr_replacement,"a"
+ .Lmemmove_begin_forward_efs:
+ 	/* Forward moving data. */
+ 	movq %rdx, %rcx
+ 	rep movsb
++	pax_force_retaddr
+ 	retq
+ .Lmemmove_end_forward_efs:
+ 	.previous
+diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
+index 2dcb380..2eb79fe 100644
+--- a/arch/x86/lib/memset_64.S
++++ b/arch/x86/lib/memset_64.S
+@@ -16,7 +16,7 @@
+  * 
+  * rax   original destination
+  */	
+-	.section .altinstr_replacement, "ax", @progbits
++	.section .altinstr_replacement, "a", @progbits
+ .Lmemset_c:
+ 	movq %rdi,%r9
+ 	movq %rdx,%rcx
+@@ -30,6 +30,7 @@
+ 	movl %edx,%ecx
+ 	rep stosb
+ 	movq %r9,%rax
++	pax_force_retaddr
+ 	ret
+ .Lmemset_e:
+ 	.previous
+@@ -45,13 +46,14 @@
+  *
+  * rax   original destination
+  */
+-	.section .altinstr_replacement, "ax", @progbits
++	.section .altinstr_replacement, "a", @progbits
+ .Lmemset_c_e:
+ 	movq %rdi,%r9
+ 	movb %sil,%al
+ 	movq %rdx,%rcx
+ 	rep stosb
+ 	movq %r9,%rax
++	pax_force_retaddr
+ 	ret
+ .Lmemset_e_e:
+ 	.previous
+@@ -118,6 +120,7 @@ ENTRY(__memset)
+ 
+ .Lende:
+ 	movq	%r10,%rax
++	pax_force_retaddr
+ 	ret
+ 
+ 	CFI_RESTORE_STATE
+diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
+index c9f2d9b..e7fd2c0 100644
+--- a/arch/x86/lib/mmx_32.c
++++ b/arch/x86/lib/mmx_32.c
+@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
+ {
+ 	void *p;
+ 	int i;
++	unsigned long cr0;
+ 
+ 	if (unlikely(in_interrupt()))
+ 		return __memcpy(to, from, len);
+@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
+ 	kernel_fpu_begin();
+ 
+ 	__asm__ __volatile__ (
+-		"1: prefetch (%0)\n"		/* This set is 28 bytes */
+-		"   prefetch 64(%0)\n"
+-		"   prefetch 128(%0)\n"
+-		"   prefetch 192(%0)\n"
+-		"   prefetch 256(%0)\n"
++		"1: prefetch (%1)\n"		/* This set is 28 bytes */
++		"   prefetch 64(%1)\n"
++		"   prefetch 128(%1)\n"
++		"   prefetch 192(%1)\n"
++		"   prefetch 256(%1)\n"
+ 		"2:  \n"
+ 		".section .fixup, \"ax\"\n"
+-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
++		"3:  \n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %%cr0, %0\n"
++		"   movl %0, %%eax\n"
++		"   andl $0xFFFEFFFF, %%eax\n"
++		"   movl %%eax, %%cr0\n"
++#endif
++
++		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %0, %%cr0\n"
++#endif
++
+ 		"   jmp 2b\n"
+ 		".previous\n"
+ 			_ASM_EXTABLE(1b, 3b)
+-			: : "r" (from));
++			: "=&r" (cr0) : "r" (from) : "ax");
+ 
+ 	for ( ; i > 5; i--) {
+ 		__asm__ __volatile__ (
+-		"1:  prefetch 320(%0)\n"
+-		"2:  movq (%0), %%mm0\n"
+-		"  movq 8(%0), %%mm1\n"
+-		"  movq 16(%0), %%mm2\n"
+-		"  movq 24(%0), %%mm3\n"
+-		"  movq %%mm0, (%1)\n"
+-		"  movq %%mm1, 8(%1)\n"
+-		"  movq %%mm2, 16(%1)\n"
+-		"  movq %%mm3, 24(%1)\n"
+-		"  movq 32(%0), %%mm0\n"
+-		"  movq 40(%0), %%mm1\n"
+-		"  movq 48(%0), %%mm2\n"
+-		"  movq 56(%0), %%mm3\n"
+-		"  movq %%mm0, 32(%1)\n"
+-		"  movq %%mm1, 40(%1)\n"
+-		"  movq %%mm2, 48(%1)\n"
+-		"  movq %%mm3, 56(%1)\n"
++		"1:  prefetch 320(%1)\n"
++		"2:  movq (%1), %%mm0\n"
++		"  movq 8(%1), %%mm1\n"
++		"  movq 16(%1), %%mm2\n"
++		"  movq 24(%1), %%mm3\n"
++		"  movq %%mm0, (%2)\n"
++		"  movq %%mm1, 8(%2)\n"
++		"  movq %%mm2, 16(%2)\n"
++		"  movq %%mm3, 24(%2)\n"
++		"  movq 32(%1), %%mm0\n"
++		"  movq 40(%1), %%mm1\n"
++		"  movq 48(%1), %%mm2\n"
++		"  movq 56(%1), %%mm3\n"
++		"  movq %%mm0, 32(%2)\n"
++		"  movq %%mm1, 40(%2)\n"
++		"  movq %%mm2, 48(%2)\n"
++		"  movq %%mm3, 56(%2)\n"
+ 		".section .fixup, \"ax\"\n"
+-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
++		"3:\n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %%cr0, %0\n"
++		"   movl %0, %%eax\n"
++		"   andl $0xFFFEFFFF, %%eax\n"
++		"   movl %%eax, %%cr0\n"
++#endif
++
++		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %0, %%cr0\n"
++#endif
++
+ 		"   jmp 2b\n"
+ 		".previous\n"
+ 			_ASM_EXTABLE(1b, 3b)
+-			: : "r" (from), "r" (to) : "memory");
++			: "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
+ 
+ 		from += 64;
+ 		to += 64;
+@@ -158,6 +187,7 @@ static void fast_clear_page(void *page)
+ static void fast_copy_page(void *to, void *from)
+ {
+ 	int i;
++	unsigned long cr0;
+ 
+ 	kernel_fpu_begin();
+ 
+@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, void *from)
+ 	 * but that is for later. -AV
+ 	 */
+ 	__asm__ __volatile__(
+-		"1: prefetch (%0)\n"
+-		"   prefetch 64(%0)\n"
+-		"   prefetch 128(%0)\n"
+-		"   prefetch 192(%0)\n"
+-		"   prefetch 256(%0)\n"
++		"1: prefetch (%1)\n"
++		"   prefetch 64(%1)\n"
++		"   prefetch 128(%1)\n"
++		"   prefetch 192(%1)\n"
++		"   prefetch 256(%1)\n"
+ 		"2:  \n"
+ 		".section .fixup, \"ax\"\n"
+-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
++		"3:  \n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %%cr0, %0\n"
++		"   movl %0, %%eax\n"
++		"   andl $0xFFFEFFFF, %%eax\n"
++		"   movl %%eax, %%cr0\n"
++#endif
++
++		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %0, %%cr0\n"
++#endif
++
+ 		"   jmp 2b\n"
+ 		".previous\n"
+-			_ASM_EXTABLE(1b, 3b) : : "r" (from));
++			_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
+ 
+ 	for (i = 0; i < (4096-320)/64; i++) {
+ 		__asm__ __volatile__ (
+-		"1: prefetch 320(%0)\n"
+-		"2: movq (%0), %%mm0\n"
+-		"   movntq %%mm0, (%1)\n"
+-		"   movq 8(%0), %%mm1\n"
+-		"   movntq %%mm1, 8(%1)\n"
+-		"   movq 16(%0), %%mm2\n"
+-		"   movntq %%mm2, 16(%1)\n"
+-		"   movq 24(%0), %%mm3\n"
+-		"   movntq %%mm3, 24(%1)\n"
+-		"   movq 32(%0), %%mm4\n"
+-		"   movntq %%mm4, 32(%1)\n"
+-		"   movq 40(%0), %%mm5\n"
+-		"   movntq %%mm5, 40(%1)\n"
+-		"   movq 48(%0), %%mm6\n"
+-		"   movntq %%mm6, 48(%1)\n"
+-		"   movq 56(%0), %%mm7\n"
+-		"   movntq %%mm7, 56(%1)\n"
++		"1: prefetch 320(%1)\n"
++		"2: movq (%1), %%mm0\n"
++		"   movntq %%mm0, (%2)\n"
++		"   movq 8(%1), %%mm1\n"
++		"   movntq %%mm1, 8(%2)\n"
++		"   movq 16(%1), %%mm2\n"
++		"   movntq %%mm2, 16(%2)\n"
++		"   movq 24(%1), %%mm3\n"
++		"   movntq %%mm3, 24(%2)\n"
++		"   movq 32(%1), %%mm4\n"
++		"   movntq %%mm4, 32(%2)\n"
++		"   movq 40(%1), %%mm5\n"
++		"   movntq %%mm5, 40(%2)\n"
++		"   movq 48(%1), %%mm6\n"
++		"   movntq %%mm6, 48(%2)\n"
++		"   movq 56(%1), %%mm7\n"
++		"   movntq %%mm7, 56(%2)\n"
+ 		".section .fixup, \"ax\"\n"
+-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
++		"3:\n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %%cr0, %0\n"
++		"   movl %0, %%eax\n"
++		"   andl $0xFFFEFFFF, %%eax\n"
++		"   movl %%eax, %%cr0\n"
++#endif
++
++		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %0, %%cr0\n"
++#endif
++
+ 		"   jmp 2b\n"
+ 		".previous\n"
+-		_ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory");
++		_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
+ 
+ 		from += 64;
+ 		to += 64;
+@@ -280,47 +338,76 @@ static void fast_clear_page(void *page)
+ static void fast_copy_page(void *to, void *from)
+ {
+ 	int i;
++	unsigned long cr0;
+ 
+ 	kernel_fpu_begin();
+ 
+ 	__asm__ __volatile__ (
+-		"1: prefetch (%0)\n"
+-		"   prefetch 64(%0)\n"
+-		"   prefetch 128(%0)\n"
+-		"   prefetch 192(%0)\n"
+-		"   prefetch 256(%0)\n"
++		"1: prefetch (%1)\n"
++		"   prefetch 64(%1)\n"
++		"   prefetch 128(%1)\n"
++		"   prefetch 192(%1)\n"
++		"   prefetch 256(%1)\n"
+ 		"2:  \n"
+ 		".section .fixup, \"ax\"\n"
+-		"3: movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
++		"3:  \n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %%cr0, %0\n"
++		"   movl %0, %%eax\n"
++		"   andl $0xFFFEFFFF, %%eax\n"
++		"   movl %%eax, %%cr0\n"
++#endif
++
++		"   movw $0x1AEB, 1b\n"	/* jmp on 26 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %0, %%cr0\n"
++#endif
++
+ 		"   jmp 2b\n"
+ 		".previous\n"
+-			_ASM_EXTABLE(1b, 3b) : : "r" (from));
++			_ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax");
+ 
+ 	for (i = 0; i < 4096/64; i++) {
+ 		__asm__ __volatile__ (
+-		"1: prefetch 320(%0)\n"
+-		"2: movq (%0), %%mm0\n"
+-		"   movq 8(%0), %%mm1\n"
+-		"   movq 16(%0), %%mm2\n"
+-		"   movq 24(%0), %%mm3\n"
+-		"   movq %%mm0, (%1)\n"
+-		"   movq %%mm1, 8(%1)\n"
+-		"   movq %%mm2, 16(%1)\n"
+-		"   movq %%mm3, 24(%1)\n"
+-		"   movq 32(%0), %%mm0\n"
+-		"   movq 40(%0), %%mm1\n"
+-		"   movq 48(%0), %%mm2\n"
+-		"   movq 56(%0), %%mm3\n"
+-		"   movq %%mm0, 32(%1)\n"
+-		"   movq %%mm1, 40(%1)\n"
+-		"   movq %%mm2, 48(%1)\n"
+-		"   movq %%mm3, 56(%1)\n"
++		"1: prefetch 320(%1)\n"
++		"2: movq (%1), %%mm0\n"
++		"   movq 8(%1), %%mm1\n"
++		"   movq 16(%1), %%mm2\n"
++		"   movq 24(%1), %%mm3\n"
++		"   movq %%mm0, (%2)\n"
++		"   movq %%mm1, 8(%2)\n"
++		"   movq %%mm2, 16(%2)\n"
++		"   movq %%mm3, 24(%2)\n"
++		"   movq 32(%1), %%mm0\n"
++		"   movq 40(%1), %%mm1\n"
++		"   movq 48(%1), %%mm2\n"
++		"   movq 56(%1), %%mm3\n"
++		"   movq %%mm0, 32(%2)\n"
++		"   movq %%mm1, 40(%2)\n"
++		"   movq %%mm2, 48(%2)\n"
++		"   movq %%mm3, 56(%2)\n"
+ 		".section .fixup, \"ax\"\n"
+-		"3: movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
++		"3:\n"
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %%cr0, %0\n"
++		"   movl %0, %%eax\n"
++		"   andl $0xFFFEFFFF, %%eax\n"
++		"   movl %%eax, %%cr0\n"
++#endif
++
++		"   movw $0x05EB, 1b\n"	/* jmp on 5 bytes */
++
++#ifdef CONFIG_PAX_KERNEXEC
++		"   movl %0, %%cr0\n"
++#endif
++
+ 		"   jmp 2b\n"
+ 		".previous\n"
+ 			_ASM_EXTABLE(1b, 3b)
+-			: : "r" (from), "r" (to) : "memory");
++			: "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax");
+ 
+ 		from += 64;
+ 		to += 64;
+diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
+index f6d13ee..d789440 100644
+--- a/arch/x86/lib/msr-reg.S
++++ b/arch/x86/lib/msr-reg.S
+@@ -3,6 +3,7 @@
+ #include <asm/dwarf2.h>
+ #include <asm/asm.h>
+ #include <asm/msr.h>
++#include <asm/alternative-asm.h>
+ 
+ #ifdef CONFIG_X86_64
+ /*
+@@ -37,6 +38,7 @@ ENTRY(\op\()_safe_regs)
+ 	movl    %edi, 28(%r10)
+ 	popq_cfi %rbp
+ 	popq_cfi %rbx
++	pax_force_retaddr
+ 	ret
+ 3:
+ 	CFI_RESTORE_STATE
+diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
+index fc6ba17..14ad9a5 100644
+--- a/arch/x86/lib/putuser.S
++++ b/arch/x86/lib/putuser.S
+@@ -16,7 +16,9 @@
+ #include <asm/errno.h>
+ #include <asm/asm.h>
+ #include <asm/smap.h>
+-
++#include <asm/segment.h>
++#include <asm/pgtable.h>
++#include <asm/alternative-asm.h>
+ 
+ /*
+  * __put_user_X
+@@ -30,57 +32,125 @@
+  * as they get called from within inline assembly.
+  */
+ 
+-#define ENTER	CFI_STARTPROC ; \
+-		GET_THREAD_INFO(%_ASM_BX)
+-#define EXIT	ASM_CLAC ;	\
+-		ret ;		\
++#define ENTER	CFI_STARTPROC
++#define EXIT	ASM_CLAC ;		\
++		pax_force_retaddr ;	\
++		ret ;			\
+ 		CFI_ENDPROC
+ 
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define _DEST %_ASM_CX,%_ASM_BX
++#else
++#define _DEST %_ASM_CX
++#endif
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#define __copyuser_seg gs;
++#else
++#define __copyuser_seg
++#endif
++
+ .text
+ ENTRY(__put_user_1)
+ 	ENTER
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
++	GET_THREAD_INFO(%_ASM_BX)
+ 	cmp TI_addr_limit(%_ASM_BX),%_ASM_CX
+ 	jae bad_put_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_BX
++	cmp %_ASM_BX,%_ASM_CX
++	jb 1234f
++	xor %ebx,%ebx
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-1:	movb %al,(%_ASM_CX)
++1:	__copyuser_seg movb %al,(_DEST)
+ 	xor %eax,%eax
+ 	EXIT
+ ENDPROC(__put_user_1)
+ 
+ ENTRY(__put_user_2)
+ 	ENTER
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
++	GET_THREAD_INFO(%_ASM_BX)
+ 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
+ 	sub $1,%_ASM_BX
+ 	cmp %_ASM_BX,%_ASM_CX
+ 	jae bad_put_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_BX
++	cmp %_ASM_BX,%_ASM_CX
++	jb 1234f
++	xor %ebx,%ebx
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-2:	movw %ax,(%_ASM_CX)
++2:	__copyuser_seg movw %ax,(_DEST)
+ 	xor %eax,%eax
+ 	EXIT
+ ENDPROC(__put_user_2)
+ 
+ ENTRY(__put_user_4)
+ 	ENTER
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
++	GET_THREAD_INFO(%_ASM_BX)
+ 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
+ 	sub $3,%_ASM_BX
+ 	cmp %_ASM_BX,%_ASM_CX
+ 	jae bad_put_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_BX
++	cmp %_ASM_BX,%_ASM_CX
++	jb 1234f
++	xor %ebx,%ebx
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-3:	movl %eax,(%_ASM_CX)
++3:	__copyuser_seg movl %eax,(_DEST)
+ 	xor %eax,%eax
+ 	EXIT
+ ENDPROC(__put_user_4)
+ 
+ ENTRY(__put_user_8)
+ 	ENTER
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF)
++	GET_THREAD_INFO(%_ASM_BX)
+ 	mov TI_addr_limit(%_ASM_BX),%_ASM_BX
+ 	sub $7,%_ASM_BX
+ 	cmp %_ASM_BX,%_ASM_CX
+ 	jae bad_put_user
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	mov pax_user_shadow_base,%_ASM_BX
++	cmp %_ASM_BX,%_ASM_CX
++	jb 1234f
++	xor %ebx,%ebx
++1234:
++#endif
++
++#endif
++
+ 	ASM_STAC
+-4:	mov %_ASM_AX,(%_ASM_CX)
++4:	__copyuser_seg mov %_ASM_AX,(_DEST)
+ #ifdef CONFIG_X86_32
+-5:	movl %edx,4(%_ASM_CX)
++5:	__copyuser_seg movl %edx,4(_DEST)
+ #endif
+ 	xor %eax,%eax
+ 	EXIT
+diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S
+index 1cad221..de671ee 100644
+--- a/arch/x86/lib/rwlock.S
++++ b/arch/x86/lib/rwlock.S
+@@ -16,13 +16,34 @@ ENTRY(__write_lock_failed)
+ 	FRAME
+ 0:	LOCK_PREFIX
+ 	WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 1234f
++	LOCK_PREFIX
++	WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
++	int $4
++1234:
++	_ASM_EXTABLE(1234b, 1234b)
++#endif
++
+ 1:	rep; nop
+ 	cmpl	$WRITE_LOCK_CMP, (%__lock_ptr)
+ 	jne	1b
+ 	LOCK_PREFIX
+ 	WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 1234f
++	LOCK_PREFIX
++	WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr)
++	int $4
++1234:
++	_ASM_EXTABLE(1234b, 1234b)
++#endif
++
+ 	jnz	0b
+ 	ENDFRAME
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ END(__write_lock_failed)
+@@ -32,13 +53,34 @@ ENTRY(__read_lock_failed)
+ 	FRAME
+ 0:	LOCK_PREFIX
+ 	READ_LOCK_SIZE(inc) (%__lock_ptr)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 1234f
++	LOCK_PREFIX
++	READ_LOCK_SIZE(dec) (%__lock_ptr)
++	int $4
++1234:
++	_ASM_EXTABLE(1234b, 1234b)
++#endif
++
+ 1:	rep; nop
+ 	READ_LOCK_SIZE(cmp) $1, (%__lock_ptr)
+ 	js	1b
+ 	LOCK_PREFIX
+ 	READ_LOCK_SIZE(dec) (%__lock_ptr)
++
++#ifdef CONFIG_PAX_REFCOUNT
++	jno 1234f
++	LOCK_PREFIX
++	READ_LOCK_SIZE(inc) (%__lock_ptr)
++	int $4
++1234:
++	_ASM_EXTABLE(1234b, 1234b)
++#endif
++
+ 	js	0b
+ 	ENDFRAME
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ END(__read_lock_failed)
+diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
+index 5dff5f0..cadebf4 100644
+--- a/arch/x86/lib/rwsem.S
++++ b/arch/x86/lib/rwsem.S
+@@ -94,6 +94,7 @@ ENTRY(call_rwsem_down_read_failed)
+ 	__ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
+ 	CFI_RESTORE __ASM_REG(dx)
+ 	restore_common_regs
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(call_rwsem_down_read_failed)
+@@ -104,6 +105,7 @@ ENTRY(call_rwsem_down_write_failed)
+ 	movq %rax,%rdi
+ 	call rwsem_down_write_failed
+ 	restore_common_regs
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(call_rwsem_down_write_failed)
+@@ -117,7 +119,8 @@ ENTRY(call_rwsem_wake)
+ 	movq %rax,%rdi
+ 	call rwsem_wake
+ 	restore_common_regs
+-1:	ret
++1:	pax_force_retaddr
++	ret
+ 	CFI_ENDPROC
+ ENDPROC(call_rwsem_wake)
+ 
+@@ -131,6 +134,7 @@ ENTRY(call_rwsem_downgrade_wake)
+ 	__ASM_SIZE(pop,_cfi) %__ASM_REG(dx)
+ 	CFI_RESTORE __ASM_REG(dx)
+ 	restore_common_regs
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+ ENDPROC(call_rwsem_downgrade_wake)
+diff --git a/arch/x86/lib/thunk_64.S b/arch/x86/lib/thunk_64.S
+index a63efd6..8149fbe 100644
+--- a/arch/x86/lib/thunk_64.S
++++ b/arch/x86/lib/thunk_64.S
+@@ -8,6 +8,7 @@
+ #include <linux/linkage.h>
+ #include <asm/dwarf2.h>
+ #include <asm/calling.h>
++#include <asm/alternative-asm.h>
+ 
+ 	/* rdi:	arg1 ... normal C conventions. rax is saved/restored. */
+ 	.macro THUNK name, func, put_ret_addr_in_rdi=0
+@@ -15,11 +16,11 @@
+ \name:
+ 	CFI_STARTPROC
+ 
+-	/* this one pushes 9 elems, the next one would be %rIP */
+-	SAVE_ARGS
++	/* this one pushes 15+1 elems, the next one would be %rIP */
++	SAVE_ARGS 8
+ 
+ 	.if \put_ret_addr_in_rdi
+-	movq_cfi_restore 9*8, rdi
++	movq_cfi_restore RIP, rdi
+ 	.endif
+ 
+ 	call \func
+@@ -38,8 +39,9 @@
+ 
+ 	/* SAVE_ARGS below is used only for the .cfi directives it contains. */
+ 	CFI_STARTPROC
+-	SAVE_ARGS
++	SAVE_ARGS 8
+ restore:
+-	RESTORE_ARGS
++	RESTORE_ARGS 1,8
++	pax_force_retaddr
+ 	ret
+ 	CFI_ENDPROC
+diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
+index e2f5e21..4b22130 100644
+--- a/arch/x86/lib/usercopy_32.c
++++ b/arch/x86/lib/usercopy_32.c
+@@ -42,11 +42,13 @@ do {									\
+ 	int __d0;							\
+ 	might_fault();							\
+ 	__asm__ __volatile__(						\
++		__COPYUSER_SET_ES					\
+ 		ASM_STAC "\n"						\
+ 		"0:	rep; stosl\n"					\
+ 		"	movl %2,%0\n"					\
+ 		"1:	rep; stosb\n"					\
+ 		"2: " ASM_CLAC "\n"					\
++		__COPYUSER_RESTORE_ES					\
+ 		".section .fixup,\"ax\"\n"				\
+ 		"3:	lea 0(%2,%0,4),%0\n"				\
+ 		"	jmp 2b\n"					\
+@@ -98,7 +100,7 @@ EXPORT_SYMBOL(__clear_user);
+ 
+ #ifdef CONFIG_X86_INTEL_USERCOPY
+ static unsigned long
+-__copy_user_intel(void __user *to, const void *from, unsigned long size)
++__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size)
+ {
+ 	int d0, d1;
+ 	__asm__ __volatile__(
+@@ -110,36 +112,36 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
+ 		       "       .align 2,0x90\n"
+ 		       "3:     movl 0(%4), %%eax\n"
+ 		       "4:     movl 4(%4), %%edx\n"
+-		       "5:     movl %%eax, 0(%3)\n"
+-		       "6:     movl %%edx, 4(%3)\n"
++		       "5:     "__copyuser_seg" movl %%eax, 0(%3)\n"
++		       "6:     "__copyuser_seg" movl %%edx, 4(%3)\n"
+ 		       "7:     movl 8(%4), %%eax\n"
+ 		       "8:     movl 12(%4),%%edx\n"
+-		       "9:     movl %%eax, 8(%3)\n"
+-		       "10:    movl %%edx, 12(%3)\n"
++		       "9:     "__copyuser_seg" movl %%eax, 8(%3)\n"
++		       "10:    "__copyuser_seg" movl %%edx, 12(%3)\n"
+ 		       "11:    movl 16(%4), %%eax\n"
+ 		       "12:    movl 20(%4), %%edx\n"
+-		       "13:    movl %%eax, 16(%3)\n"
+-		       "14:    movl %%edx, 20(%3)\n"
++		       "13:    "__copyuser_seg" movl %%eax, 16(%3)\n"
++		       "14:    "__copyuser_seg" movl %%edx, 20(%3)\n"
+ 		       "15:    movl 24(%4), %%eax\n"
+ 		       "16:    movl 28(%4), %%edx\n"
+-		       "17:    movl %%eax, 24(%3)\n"
+-		       "18:    movl %%edx, 28(%3)\n"
++		       "17:    "__copyuser_seg" movl %%eax, 24(%3)\n"
++		       "18:    "__copyuser_seg" movl %%edx, 28(%3)\n"
+ 		       "19:    movl 32(%4), %%eax\n"
+ 		       "20:    movl 36(%4), %%edx\n"
+-		       "21:    movl %%eax, 32(%3)\n"
+-		       "22:    movl %%edx, 36(%3)\n"
++		       "21:    "__copyuser_seg" movl %%eax, 32(%3)\n"
++		       "22:    "__copyuser_seg" movl %%edx, 36(%3)\n"
+ 		       "23:    movl 40(%4), %%eax\n"
+ 		       "24:    movl 44(%4), %%edx\n"
+-		       "25:    movl %%eax, 40(%3)\n"
+-		       "26:    movl %%edx, 44(%3)\n"
++		       "25:    "__copyuser_seg" movl %%eax, 40(%3)\n"
++		       "26:    "__copyuser_seg" movl %%edx, 44(%3)\n"
+ 		       "27:    movl 48(%4), %%eax\n"
+ 		       "28:    movl 52(%4), %%edx\n"
+-		       "29:    movl %%eax, 48(%3)\n"
+-		       "30:    movl %%edx, 52(%3)\n"
++		       "29:    "__copyuser_seg" movl %%eax, 48(%3)\n"
++		       "30:    "__copyuser_seg" movl %%edx, 52(%3)\n"
+ 		       "31:    movl 56(%4), %%eax\n"
+ 		       "32:    movl 60(%4), %%edx\n"
+-		       "33:    movl %%eax, 56(%3)\n"
+-		       "34:    movl %%edx, 60(%3)\n"
++		       "33:    "__copyuser_seg" movl %%eax, 56(%3)\n"
++		       "34:    "__copyuser_seg" movl %%edx, 60(%3)\n"
+ 		       "       addl $-64, %0\n"
+ 		       "       addl $64, %4\n"
+ 		       "       addl $64, %3\n"
+@@ -149,10 +151,116 @@ __copy_user_intel(void __user *to, const void *from, unsigned long size)
+ 		       "       shrl  $2, %0\n"
+ 		       "       andl  $3, %%eax\n"
+ 		       "       cld\n"
++		       __COPYUSER_SET_ES
+ 		       "99:    rep; movsl\n"
+ 		       "36:    movl %%eax, %0\n"
+ 		       "37:    rep; movsb\n"
+ 		       "100:\n"
++		       __COPYUSER_RESTORE_ES
++		       ".section .fixup,\"ax\"\n"
++		       "101:   lea 0(%%eax,%0,4),%0\n"
++		       "       jmp 100b\n"
++		       ".previous\n"
++		       _ASM_EXTABLE(1b,100b)
++		       _ASM_EXTABLE(2b,100b)
++		       _ASM_EXTABLE(3b,100b)
++		       _ASM_EXTABLE(4b,100b)
++		       _ASM_EXTABLE(5b,100b)
++		       _ASM_EXTABLE(6b,100b)
++		       _ASM_EXTABLE(7b,100b)
++		       _ASM_EXTABLE(8b,100b)
++		       _ASM_EXTABLE(9b,100b)
++		       _ASM_EXTABLE(10b,100b)
++		       _ASM_EXTABLE(11b,100b)
++		       _ASM_EXTABLE(12b,100b)
++		       _ASM_EXTABLE(13b,100b)
++		       _ASM_EXTABLE(14b,100b)
++		       _ASM_EXTABLE(15b,100b)
++		       _ASM_EXTABLE(16b,100b)
++		       _ASM_EXTABLE(17b,100b)
++		       _ASM_EXTABLE(18b,100b)
++		       _ASM_EXTABLE(19b,100b)
++		       _ASM_EXTABLE(20b,100b)
++		       _ASM_EXTABLE(21b,100b)
++		       _ASM_EXTABLE(22b,100b)
++		       _ASM_EXTABLE(23b,100b)
++		       _ASM_EXTABLE(24b,100b)
++		       _ASM_EXTABLE(25b,100b)
++		       _ASM_EXTABLE(26b,100b)
++		       _ASM_EXTABLE(27b,100b)
++		       _ASM_EXTABLE(28b,100b)
++		       _ASM_EXTABLE(29b,100b)
++		       _ASM_EXTABLE(30b,100b)
++		       _ASM_EXTABLE(31b,100b)
++		       _ASM_EXTABLE(32b,100b)
++		       _ASM_EXTABLE(33b,100b)
++		       _ASM_EXTABLE(34b,100b)
++		       _ASM_EXTABLE(35b,100b)
++		       _ASM_EXTABLE(36b,100b)
++		       _ASM_EXTABLE(37b,100b)
++		       _ASM_EXTABLE(99b,101b)
++		       : "=&c"(size), "=&D" (d0), "=&S" (d1)
++		       :  "1"(to), "2"(from), "0"(size)
++		       : "eax", "edx", "memory");
++	return size;
++}
++
++static unsigned long
++__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size)
++{
++	int d0, d1;
++	__asm__ __volatile__(
++		       "       .align 2,0x90\n"
++		       "1:     "__copyuser_seg" movl 32(%4), %%eax\n"
++		       "       cmpl $67, %0\n"
++		       "       jbe 3f\n"
++		       "2:     "__copyuser_seg" movl 64(%4), %%eax\n"
++		       "       .align 2,0x90\n"
++		       "3:     "__copyuser_seg" movl 0(%4), %%eax\n"
++		       "4:     "__copyuser_seg" movl 4(%4), %%edx\n"
++		       "5:     movl %%eax, 0(%3)\n"
++		       "6:     movl %%edx, 4(%3)\n"
++		       "7:     "__copyuser_seg" movl 8(%4), %%eax\n"
++		       "8:     "__copyuser_seg" movl 12(%4),%%edx\n"
++		       "9:     movl %%eax, 8(%3)\n"
++		       "10:    movl %%edx, 12(%3)\n"
++		       "11:    "__copyuser_seg" movl 16(%4), %%eax\n"
++		       "12:    "__copyuser_seg" movl 20(%4), %%edx\n"
++		       "13:    movl %%eax, 16(%3)\n"
++		       "14:    movl %%edx, 20(%3)\n"
++		       "15:    "__copyuser_seg" movl 24(%4), %%eax\n"
++		       "16:    "__copyuser_seg" movl 28(%4), %%edx\n"
++		       "17:    movl %%eax, 24(%3)\n"
++		       "18:    movl %%edx, 28(%3)\n"
++		       "19:    "__copyuser_seg" movl 32(%4), %%eax\n"
++		       "20:    "__copyuser_seg" movl 36(%4), %%edx\n"
++		       "21:    movl %%eax, 32(%3)\n"
++		       "22:    movl %%edx, 36(%3)\n"
++		       "23:    "__copyuser_seg" movl 40(%4), %%eax\n"
++		       "24:    "__copyuser_seg" movl 44(%4), %%edx\n"
++		       "25:    movl %%eax, 40(%3)\n"
++		       "26:    movl %%edx, 44(%3)\n"
++		       "27:    "__copyuser_seg" movl 48(%4), %%eax\n"
++		       "28:    "__copyuser_seg" movl 52(%4), %%edx\n"
++		       "29:    movl %%eax, 48(%3)\n"
++		       "30:    movl %%edx, 52(%3)\n"
++		       "31:    "__copyuser_seg" movl 56(%4), %%eax\n"
++		       "32:    "__copyuser_seg" movl 60(%4), %%edx\n"
++		       "33:    movl %%eax, 56(%3)\n"
++		       "34:    movl %%edx, 60(%3)\n"
++		       "       addl $-64, %0\n"
++		       "       addl $64, %4\n"
++		       "       addl $64, %3\n"
++		       "       cmpl $63, %0\n"
++		       "       ja  1b\n"
++		       "35:    movl  %0, %%eax\n"
++		       "       shrl  $2, %0\n"
++		       "       andl  $3, %%eax\n"
++		       "       cld\n"
++		       "99:    rep; "__copyuser_seg" movsl\n"
++		       "36:    movl %%eax, %0\n"
++		       "37:    rep; "__copyuser_seg" movsb\n"
++		       "100:\n"
+ 		       ".section .fixup,\"ax\"\n"
+ 		       "101:   lea 0(%%eax,%0,4),%0\n"
+ 		       "       jmp 100b\n"
+@@ -207,41 +315,41 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
+ 	int d0, d1;
+ 	__asm__ __volatile__(
+ 		       "        .align 2,0x90\n"
+-		       "0:      movl 32(%4), %%eax\n"
++		       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
+ 		       "        cmpl $67, %0\n"
+ 		       "        jbe 2f\n"
+-		       "1:      movl 64(%4), %%eax\n"
++		       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
+ 		       "        .align 2,0x90\n"
+-		       "2:      movl 0(%4), %%eax\n"
+-		       "21:     movl 4(%4), %%edx\n"
++		       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
++		       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
+ 		       "        movl %%eax, 0(%3)\n"
+ 		       "        movl %%edx, 4(%3)\n"
+-		       "3:      movl 8(%4), %%eax\n"
+-		       "31:     movl 12(%4),%%edx\n"
++		       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
++		       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
+ 		       "        movl %%eax, 8(%3)\n"
+ 		       "        movl %%edx, 12(%3)\n"
+-		       "4:      movl 16(%4), %%eax\n"
+-		       "41:     movl 20(%4), %%edx\n"
++		       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
++		       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
+ 		       "        movl %%eax, 16(%3)\n"
+ 		       "        movl %%edx, 20(%3)\n"
+-		       "10:     movl 24(%4), %%eax\n"
+-		       "51:     movl 28(%4), %%edx\n"
++		       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
++		       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
+ 		       "        movl %%eax, 24(%3)\n"
+ 		       "        movl %%edx, 28(%3)\n"
+-		       "11:     movl 32(%4), %%eax\n"
+-		       "61:     movl 36(%4), %%edx\n"
++		       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
++		       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
+ 		       "        movl %%eax, 32(%3)\n"
+ 		       "        movl %%edx, 36(%3)\n"
+-		       "12:     movl 40(%4), %%eax\n"
+-		       "71:     movl 44(%4), %%edx\n"
++		       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
++		       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
+ 		       "        movl %%eax, 40(%3)\n"
+ 		       "        movl %%edx, 44(%3)\n"
+-		       "13:     movl 48(%4), %%eax\n"
+-		       "81:     movl 52(%4), %%edx\n"
++		       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
++		       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
+ 		       "        movl %%eax, 48(%3)\n"
+ 		       "        movl %%edx, 52(%3)\n"
+-		       "14:     movl 56(%4), %%eax\n"
+-		       "91:     movl 60(%4), %%edx\n"
++		       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
++		       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
+ 		       "        movl %%eax, 56(%3)\n"
+ 		       "        movl %%edx, 60(%3)\n"
+ 		       "        addl $-64, %0\n"
+@@ -253,9 +361,9 @@ __copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
+ 		       "        shrl  $2, %0\n"
+ 		       "        andl $3, %%eax\n"
+ 		       "        cld\n"
+-		       "6:      rep; movsl\n"
++		       "6:      rep; "__copyuser_seg" movsl\n"
+ 		       "        movl %%eax,%0\n"
+-		       "7:      rep; movsb\n"
++		       "7:      rep; "__copyuser_seg" movsb\n"
+ 		       "8:\n"
+ 		       ".section .fixup,\"ax\"\n"
+ 		       "9:      lea 0(%%eax,%0,4),%0\n"
+@@ -305,41 +413,41 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
+ 
+ 	__asm__ __volatile__(
+ 	       "        .align 2,0x90\n"
+-	       "0:      movl 32(%4), %%eax\n"
++	       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
+ 	       "        cmpl $67, %0\n"
+ 	       "        jbe 2f\n"
+-	       "1:      movl 64(%4), %%eax\n"
++	       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
+ 	       "        .align 2,0x90\n"
+-	       "2:      movl 0(%4), %%eax\n"
+-	       "21:     movl 4(%4), %%edx\n"
++	       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
++	       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
+ 	       "        movnti %%eax, 0(%3)\n"
+ 	       "        movnti %%edx, 4(%3)\n"
+-	       "3:      movl 8(%4), %%eax\n"
+-	       "31:     movl 12(%4),%%edx\n"
++	       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
++	       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
+ 	       "        movnti %%eax, 8(%3)\n"
+ 	       "        movnti %%edx, 12(%3)\n"
+-	       "4:      movl 16(%4), %%eax\n"
+-	       "41:     movl 20(%4), %%edx\n"
++	       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
++	       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
+ 	       "        movnti %%eax, 16(%3)\n"
+ 	       "        movnti %%edx, 20(%3)\n"
+-	       "10:     movl 24(%4), %%eax\n"
+-	       "51:     movl 28(%4), %%edx\n"
++	       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
++	       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
+ 	       "        movnti %%eax, 24(%3)\n"
+ 	       "        movnti %%edx, 28(%3)\n"
+-	       "11:     movl 32(%4), %%eax\n"
+-	       "61:     movl 36(%4), %%edx\n"
++	       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
++	       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
+ 	       "        movnti %%eax, 32(%3)\n"
+ 	       "        movnti %%edx, 36(%3)\n"
+-	       "12:     movl 40(%4), %%eax\n"
+-	       "71:     movl 44(%4), %%edx\n"
++	       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
++	       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
+ 	       "        movnti %%eax, 40(%3)\n"
+ 	       "        movnti %%edx, 44(%3)\n"
+-	       "13:     movl 48(%4), %%eax\n"
+-	       "81:     movl 52(%4), %%edx\n"
++	       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
++	       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
+ 	       "        movnti %%eax, 48(%3)\n"
+ 	       "        movnti %%edx, 52(%3)\n"
+-	       "14:     movl 56(%4), %%eax\n"
+-	       "91:     movl 60(%4), %%edx\n"
++	       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
++	       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
+ 	       "        movnti %%eax, 56(%3)\n"
+ 	       "        movnti %%edx, 60(%3)\n"
+ 	       "        addl $-64, %0\n"
+@@ -352,9 +460,9 @@ static unsigned long __copy_user_zeroing_intel_nocache(void *to,
+ 	       "        shrl  $2, %0\n"
+ 	       "        andl $3, %%eax\n"
+ 	       "        cld\n"
+-	       "6:      rep; movsl\n"
++	       "6:      rep; "__copyuser_seg" movsl\n"
+ 	       "        movl %%eax,%0\n"
+-	       "7:      rep; movsb\n"
++	       "7:      rep; "__copyuser_seg" movsb\n"
+ 	       "8:\n"
+ 	       ".section .fixup,\"ax\"\n"
+ 	       "9:      lea 0(%%eax,%0,4),%0\n"
+@@ -399,41 +507,41 @@ static unsigned long __copy_user_intel_nocache(void *to,
+ 
+ 	__asm__ __volatile__(
+ 	       "        .align 2,0x90\n"
+-	       "0:      movl 32(%4), %%eax\n"
++	       "0:      "__copyuser_seg" movl 32(%4), %%eax\n"
+ 	       "        cmpl $67, %0\n"
+ 	       "        jbe 2f\n"
+-	       "1:      movl 64(%4), %%eax\n"
++	       "1:      "__copyuser_seg" movl 64(%4), %%eax\n"
+ 	       "        .align 2,0x90\n"
+-	       "2:      movl 0(%4), %%eax\n"
+-	       "21:     movl 4(%4), %%edx\n"
++	       "2:      "__copyuser_seg" movl 0(%4), %%eax\n"
++	       "21:     "__copyuser_seg" movl 4(%4), %%edx\n"
+ 	       "        movnti %%eax, 0(%3)\n"
+ 	       "        movnti %%edx, 4(%3)\n"
+-	       "3:      movl 8(%4), %%eax\n"
+-	       "31:     movl 12(%4),%%edx\n"
++	       "3:      "__copyuser_seg" movl 8(%4), %%eax\n"
++	       "31:     "__copyuser_seg" movl 12(%4),%%edx\n"
+ 	       "        movnti %%eax, 8(%3)\n"
+ 	       "        movnti %%edx, 12(%3)\n"
+-	       "4:      movl 16(%4), %%eax\n"
+-	       "41:     movl 20(%4), %%edx\n"
++	       "4:      "__copyuser_seg" movl 16(%4), %%eax\n"
++	       "41:     "__copyuser_seg" movl 20(%4), %%edx\n"
+ 	       "        movnti %%eax, 16(%3)\n"
+ 	       "        movnti %%edx, 20(%3)\n"
+-	       "10:     movl 24(%4), %%eax\n"
+-	       "51:     movl 28(%4), %%edx\n"
++	       "10:     "__copyuser_seg" movl 24(%4), %%eax\n"
++	       "51:     "__copyuser_seg" movl 28(%4), %%edx\n"
+ 	       "        movnti %%eax, 24(%3)\n"
+ 	       "        movnti %%edx, 28(%3)\n"
+-	       "11:     movl 32(%4), %%eax\n"
+-	       "61:     movl 36(%4), %%edx\n"
++	       "11:     "__copyuser_seg" movl 32(%4), %%eax\n"
++	       "61:     "__copyuser_seg" movl 36(%4), %%edx\n"
+ 	       "        movnti %%eax, 32(%3)\n"
+ 	       "        movnti %%edx, 36(%3)\n"
+-	       "12:     movl 40(%4), %%eax\n"
+-	       "71:     movl 44(%4), %%edx\n"
++	       "12:     "__copyuser_seg" movl 40(%4), %%eax\n"
++	       "71:     "__copyuser_seg" movl 44(%4), %%edx\n"
+ 	       "        movnti %%eax, 40(%3)\n"
+ 	       "        movnti %%edx, 44(%3)\n"
+-	       "13:     movl 48(%4), %%eax\n"
+-	       "81:     movl 52(%4), %%edx\n"
++	       "13:     "__copyuser_seg" movl 48(%4), %%eax\n"
++	       "81:     "__copyuser_seg" movl 52(%4), %%edx\n"
+ 	       "        movnti %%eax, 48(%3)\n"
+ 	       "        movnti %%edx, 52(%3)\n"
+-	       "14:     movl 56(%4), %%eax\n"
+-	       "91:     movl 60(%4), %%edx\n"
++	       "14:     "__copyuser_seg" movl 56(%4), %%eax\n"
++	       "91:     "__copyuser_seg" movl 60(%4), %%edx\n"
+ 	       "        movnti %%eax, 56(%3)\n"
+ 	       "        movnti %%edx, 60(%3)\n"
+ 	       "        addl $-64, %0\n"
+@@ -446,9 +554,9 @@ static unsigned long __copy_user_intel_nocache(void *to,
+ 	       "        shrl  $2, %0\n"
+ 	       "        andl $3, %%eax\n"
+ 	       "        cld\n"
+-	       "6:      rep; movsl\n"
++	       "6:      rep; "__copyuser_seg" movsl\n"
+ 	       "        movl %%eax,%0\n"
+-	       "7:      rep; movsb\n"
++	       "7:      rep; "__copyuser_seg" movsb\n"
+ 	       "8:\n"
+ 	       ".section .fixup,\"ax\"\n"
+ 	       "9:      lea 0(%%eax,%0,4),%0\n"
+@@ -488,32 +596,36 @@ static unsigned long __copy_user_intel_nocache(void *to,
+  */
+ unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
+ 					unsigned long size);
+-unsigned long __copy_user_intel(void __user *to, const void *from,
++unsigned long __generic_copy_to_user_intel(void __user *to, const void *from,
++					unsigned long size);
++unsigned long __generic_copy_from_user_intel(void *to, const void __user *from,
+ 					unsigned long size);
+ unsigned long __copy_user_zeroing_intel_nocache(void *to,
+ 				const void __user *from, unsigned long size);
+ #endif /* CONFIG_X86_INTEL_USERCOPY */
+ 
+ /* Generic arbitrary sized copy.  */
+-#define __copy_user(to, from, size)					\
++#define __copy_user(to, from, size, prefix, set, restore)		\
+ do {									\
+ 	int __d0, __d1, __d2;						\
+ 	__asm__ __volatile__(						\
++		set							\
+ 		"	cmp  $7,%0\n"					\
+ 		"	jbe  1f\n"					\
+ 		"	movl %1,%0\n"					\
+ 		"	negl %0\n"					\
+ 		"	andl $7,%0\n"					\
+ 		"	subl %0,%3\n"					\
+-		"4:	rep; movsb\n"					\
++		"4:	rep; "prefix"movsb\n"				\
+ 		"	movl %3,%0\n"					\
+ 		"	shrl $2,%0\n"					\
+ 		"	andl $3,%3\n"					\
+ 		"	.align 2,0x90\n"				\
+-		"0:	rep; movsl\n"					\
++		"0:	rep; "prefix"movsl\n"				\
+ 		"	movl %3,%0\n"					\
+-		"1:	rep; movsb\n"					\
++		"1:	rep; "prefix"movsb\n"				\
+ 		"2:\n"							\
++		restore							\
+ 		".section .fixup,\"ax\"\n"				\
+ 		"5:	addl %3,%0\n"					\
+ 		"	jmp 2b\n"					\
+@@ -538,14 +650,14 @@ do {									\
+ 		"	negl %0\n"					\
+ 		"	andl $7,%0\n"					\
+ 		"	subl %0,%3\n"					\
+-		"4:	rep; movsb\n"					\
++		"4:	rep; "__copyuser_seg"movsb\n"			\
+ 		"	movl %3,%0\n"					\
+ 		"	shrl $2,%0\n"					\
+ 		"	andl $3,%3\n"					\
+ 		"	.align 2,0x90\n"				\
+-		"0:	rep; movsl\n"					\
++		"0:	rep; "__copyuser_seg"movsl\n"			\
+ 		"	movl %3,%0\n"					\
+-		"1:	rep; movsb\n"					\
++		"1:	rep; "__copyuser_seg"movsb\n"			\
+ 		"2:\n"							\
+ 		".section .fixup,\"ax\"\n"				\
+ 		"5:	addl %3,%0\n"					\
+@@ -572,9 +684,9 @@ unsigned long __copy_to_user_ll(void __user *to, const void *from,
+ {
+ 	stac();
+ 	if (movsl_is_ok(to, from, n))
+-		__copy_user(to, from, n);
++		__copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES);
+ 	else
+-		n = __copy_user_intel(to, from, n);
++		n = __generic_copy_to_user_intel(to, from, n);
+ 	clac();
+ 	return n;
+ }
+@@ -598,10 +710,9 @@ unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
+ {
+ 	stac();
+ 	if (movsl_is_ok(to, from, n))
+-		__copy_user(to, from, n);
++		__copy_user(to, from, n, __copyuser_seg, "", "");
+ 	else
+-		n = __copy_user_intel((void __user *)to,
+-				      (const void *)from, n);
++		n = __generic_copy_from_user_intel(to, from, n);
+ 	clac();
+ 	return n;
+ }
+@@ -632,58 +743,38 @@ unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *fr
+ 	if (n > 64 && cpu_has_xmm2)
+ 		n = __copy_user_intel_nocache(to, from, n);
+ 	else
+-		__copy_user(to, from, n);
++		__copy_user(to, from, n, __copyuser_seg, "", "");
+ #else
+-	__copy_user(to, from, n);
++	__copy_user(to, from, n, __copyuser_seg, "", "");
+ #endif
+ 	clac();
+ 	return n;
+ }
+ EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
+ 
+-/**
+- * copy_to_user: - Copy a block of data into user space.
+- * @to:   Destination address, in user space.
+- * @from: Source address, in kernel space.
+- * @n:    Number of bytes to copy.
+- *
+- * Context: User context only.  This function may sleep.
+- *
+- * Copy data from kernel space to user space.
+- *
+- * Returns number of bytes that could not be copied.
+- * On success, this will be zero.
+- */
+-unsigned long _copy_to_user(void __user *to, const void *from, unsigned n)
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++void __set_fs(mm_segment_t x)
+ {
+-	if (access_ok(VERIFY_WRITE, to, n))
+-		n = __copy_to_user(to, from, n);
+-	return n;
++	switch (x.seg) {
++	case 0:
++		loadsegment(gs, 0);
++		break;
++	case TASK_SIZE_MAX:
++		loadsegment(gs, __USER_DS);
++		break;
++	case -1UL:
++		loadsegment(gs, __KERNEL_DS);
++		break;
++	default:
++		BUG();
++	}
+ }
+-EXPORT_SYMBOL(_copy_to_user);
++EXPORT_SYMBOL(__set_fs);
+ 
+-/**
+- * copy_from_user: - Copy a block of data from user space.
+- * @to:   Destination address, in kernel space.
+- * @from: Source address, in user space.
+- * @n:    Number of bytes to copy.
+- *
+- * Context: User context only.  This function may sleep.
+- *
+- * Copy data from user space to kernel space.
+- *
+- * Returns number of bytes that could not be copied.
+- * On success, this will be zero.
+- *
+- * If some data could not be copied, this function will pad the copied
+- * data to the requested size using zero bytes.
+- */
+-unsigned long _copy_from_user(void *to, const void __user *from, unsigned n)
++void set_fs(mm_segment_t x)
+ {
+-	if (access_ok(VERIFY_READ, from, n))
+-		n = __copy_from_user(to, from, n);
+-	else
+-		memset(to, 0, n);
+-	return n;
++	current_thread_info()->addr_limit = x;
++	__set_fs(x);
+ }
+-EXPORT_SYMBOL(_copy_from_user);
++EXPORT_SYMBOL(set_fs);
++#endif
+diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
+index c905e89..01ab928 100644
+--- a/arch/x86/lib/usercopy_64.c
++++ b/arch/x86/lib/usercopy_64.c
+@@ -18,6 +18,7 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
+ 	might_fault();
+ 	/* no memory constraint because it doesn't change any memory gcc knows
+ 	   about */
++	pax_open_userland();
+ 	stac();
+ 	asm volatile(
+ 		"	testq  %[size8],%[size8]\n"
+@@ -39,9 +40,10 @@ unsigned long __clear_user(void __user *addr, unsigned long size)
+ 		_ASM_EXTABLE(0b,3b)
+ 		_ASM_EXTABLE(1b,2b)
+ 		: [size8] "=&c"(size), [dst] "=&D" (__d0)
+-		: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(addr),
++		: [size1] "r"(size & 7), "[size8]" (size / 8), "[dst]"(____m(addr)),
+ 		  [zero] "r" (0UL), [eight] "r" (8UL));
+ 	clac();
++	pax_close_userland();
+ 	return size;
+ }
+ EXPORT_SYMBOL(__clear_user);
+@@ -54,12 +56,11 @@ unsigned long clear_user(void __user *to, unsigned long n)
+ }
+ EXPORT_SYMBOL(clear_user);
+ 
+-unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len)
++unsigned long copy_in_user(void __user *to, const void __user *from, unsigned long len)
+ {
+-	if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { 
+-		return copy_user_generic((__force void *)to, (__force void *)from, len);
+-	} 
+-	return len;		
++	if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len))
++		return copy_user_generic((void __force_kernel *)____m(to), (void __force_kernel *)____m(from), len);
++	return len;
+ }
+ EXPORT_SYMBOL(copy_in_user);
+ 
+@@ -69,11 +70,13 @@ EXPORT_SYMBOL(copy_in_user);
+  * it is not necessary to optimize tail handling.
+  */
+ __visible unsigned long
+-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
++copy_user_handle_tail(char __user *to, char __user *from, unsigned long len, unsigned zerorest)
+ {
+ 	char c;
+ 	unsigned zero_len;
+ 
++	clac();
++	pax_close_userland();
+ 	for (; len; --len, to++) {
+ 		if (__get_user_nocheck(c, from++, sizeof(char)))
+ 			break;
+@@ -84,6 +87,5 @@ copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest)
+ 	for (c = 0, zero_len = len; zerorest && zero_len; --zero_len)
+ 		if (__put_user_nocheck(c, to++, sizeof(char)))
+ 			break;
+-	clac();
+ 	return len;
+ }
+diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
+index 6a19ad9..1c48f9a 100644
+--- a/arch/x86/mm/Makefile
++++ b/arch/x86/mm/Makefile
+@@ -30,3 +30,7 @@ obj-$(CONFIG_ACPI_NUMA)		+= srat.o
+ obj-$(CONFIG_NUMA_EMU)		+= numa_emulation.o
+ 
+ obj-$(CONFIG_MEMTEST)		+= memtest.o
++
++quote:="
++obj-$(CONFIG_X86_64)		+= uderef_64.o
++CFLAGS_uderef_64.o		:= $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
+diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
+index 903ec1e..c4166b2 100644
+--- a/arch/x86/mm/extable.c
++++ b/arch/x86/mm/extable.c
+@@ -6,12 +6,24 @@
+ static inline unsigned long
+ ex_insn_addr(const struct exception_table_entry *x)
+ {
+-	return (unsigned long)&x->insn + x->insn;
++	unsigned long reloc = 0;
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++#endif
++
++	return (unsigned long)&x->insn + x->insn + reloc;
+ }
+ static inline unsigned long
+ ex_fixup_addr(const struct exception_table_entry *x)
+ {
+-	return (unsigned long)&x->fixup + x->fixup;
++	unsigned long reloc = 0;
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	reloc = ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++#endif
++
++	return (unsigned long)&x->fixup + x->fixup + reloc;
+ }
+ 
+ int fixup_exception(struct pt_regs *regs)
+@@ -20,7 +32,7 @@ int fixup_exception(struct pt_regs *regs)
+ 	unsigned long new_ip;
+ 
+ #ifdef CONFIG_PNPBIOS
+-	if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) {
++	if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) {
+ 		extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp;
+ 		extern u32 pnp_bios_is_utter_crap;
+ 		pnp_bios_is_utter_crap = 1;
+@@ -145,6 +157,13 @@ void sort_extable(struct exception_table_entry *start,
+ 		i += 4;
+ 		p->fixup -= i;
+ 		i += 4;
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		BUILD_BUG_ON(!IS_ENABLED(CONFIG_BUILDTIME_EXTABLE_SORT));
++		p->insn -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++		p->fixup -= ____LOAD_PHYSICAL_ADDR - LOAD_PHYSICAL_ADDR;
++#endif
++
+ 	}
+ }
+ 
+diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
+index ebc551c..b8ee77e 100644
+--- a/arch/x86/mm/fault.c
++++ b/arch/x86/mm/fault.c
+@@ -14,11 +14,18 @@
+ #include <linux/hugetlb.h>		/* hstate_index_to_shift	*/
+ #include <linux/prefetch.h>		/* prefetchw			*/
+ #include <linux/context_tracking.h>	/* exception_enter(), ...	*/
++#include <linux/unistd.h>
++#include <linux/compiler.h>
+ 
+ #include <asm/traps.h>			/* dotraplinkage, ...		*/
+ #include <asm/pgalloc.h>		/* pgd_*(), ...			*/
+ #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
+ #include <asm/fixmap.h>			/* VSYSCALL_START		*/
++#include <asm/tlbflush.h>
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++#include <asm/stacktrace.h>
++#endif
+ 
+ #define CREATE_TRACE_POINTS
+ #include <asm/trace/exceptions.h>
+@@ -59,7 +66,7 @@ static inline int __kprobes kprobes_fault(struct pt_regs *regs)
+ 	int ret = 0;
+ 
+ 	/* kprobe_running() needs smp_processor_id() */
+-	if (kprobes_built_in() && !user_mode_vm(regs)) {
++	if (kprobes_built_in() && !user_mode(regs)) {
+ 		preempt_disable();
+ 		if (kprobe_running() && kprobe_fault_handler(regs, 14))
+ 			ret = 1;
+@@ -120,7 +127,10 @@ check_prefetch_opcode(struct pt_regs *regs, unsigned char *instr,
+ 		return !instr_lo || (instr_lo>>1) == 1;
+ 	case 0x00:
+ 		/* Prefetch instruction is 0x0F0D or 0x0F18 */
+-		if (probe_kernel_address(instr, opcode))
++		if (user_mode(regs)) {
++			if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
++				return 0;
++		} else if (probe_kernel_address(instr, opcode))
+ 			return 0;
+ 
+ 		*prefetch = (instr_lo == 0xF) &&
+@@ -154,7 +164,10 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
+ 	while (instr < max_instr) {
+ 		unsigned char opcode;
+ 
+-		if (probe_kernel_address(instr, opcode))
++		if (user_mode(regs)) {
++			if (__copy_from_user_inatomic(&opcode, (unsigned char __force_user *)(instr), 1))
++				break;
++		} else if (probe_kernel_address(instr, opcode))
+ 			break;
+ 
+ 		instr++;
+@@ -185,6 +198,34 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
+ 	force_sig_info(si_signo, &info, tsk);
+ }
+ 
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address);
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++static int pax_handle_fetch_fault(struct pt_regs *regs);
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address)
++{
++	pgd_t *pgd;
++	pud_t *pud;
++	pmd_t *pmd;
++
++	pgd = pgd_offset(mm, address);
++	if (!pgd_present(*pgd))
++		return NULL;
++	pud = pud_offset(pgd, address);
++	if (!pud_present(*pud))
++		return NULL;
++	pmd = pmd_offset(pud, address);
++	if (!pmd_present(*pmd))
++		return NULL;
++	return pmd;
++}
++#endif
++
+ DEFINE_SPINLOCK(pgd_lock);
+ LIST_HEAD(pgd_list);
+ 
+@@ -235,10 +276,27 @@ void vmalloc_sync_all(void)
+ 	for (address = VMALLOC_START & PMD_MASK;
+ 	     address >= TASK_SIZE && address < FIXADDR_TOP;
+ 	     address += PMD_SIZE) {
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		unsigned long cpu;
++#else
+ 		struct page *page;
++#endif
+ 
+ 		spin_lock(&pgd_lock);
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
++			pgd_t *pgd = get_cpu_pgd(cpu, user);
++			pmd_t *ret;
++
++			ret = vmalloc_sync_one(pgd, address);
++			if (!ret)
++				break;
++			pgd = get_cpu_pgd(cpu, kernel);
++#else
+ 		list_for_each_entry(page, &pgd_list, lru) {
++			pgd_t *pgd;
+ 			spinlock_t *pgt_lock;
+ 			pmd_t *ret;
+ 
+@@ -246,8 +304,14 @@ void vmalloc_sync_all(void)
+ 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
+ 
+ 			spin_lock(pgt_lock);
+-			ret = vmalloc_sync_one(page_address(page), address);
++			pgd = page_address(page);
++#endif
++
++			ret = vmalloc_sync_one(pgd, address);
++
++#ifndef CONFIG_PAX_PER_CPU_PGD
+ 			spin_unlock(pgt_lock);
++#endif
+ 
+ 			if (!ret)
+ 				break;
+@@ -281,6 +345,12 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
+ 	 * an interrupt in the middle of a task switch..
+ 	 */
+ 	pgd_paddr = read_cr3();
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (pgd_paddr & __PHYSICAL_MASK));
++	vmalloc_sync_one(__va(pgd_paddr + PAGE_SIZE), address);
++#endif
++
+ 	pmd_k = vmalloc_sync_one(__va(pgd_paddr), address);
+ 	if (!pmd_k)
+ 		return -1;
+@@ -376,11 +446,25 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
+ 	 * happen within a race in page table update. In the later
+ 	 * case just flush:
+ 	 */
+-	pgd = pgd_offset(current->active_mm, address);
++
+ 	pgd_ref = pgd_offset_k(address);
+ 	if (pgd_none(*pgd_ref))
+ 		return -1;
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	BUG_ON(__pa(get_cpu_pgd(smp_processor_id(), kernel)) != (read_cr3() & __PHYSICAL_MASK));
++	pgd = pgd_offset_cpu(smp_processor_id(), user, address);
++	if (pgd_none(*pgd)) {
++		set_pgd(pgd, *pgd_ref);
++		arch_flush_lazy_mmu_mode();
++	} else {
++		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
++	}
++	pgd = pgd_offset_cpu(smp_processor_id(), kernel, address);
++#else
++	pgd = pgd_offset(current->active_mm, address);
++#endif
++
+ 	if (pgd_none(*pgd)) {
+ 		set_pgd(pgd, *pgd_ref);
+ 		arch_flush_lazy_mmu_mode();
+@@ -546,7 +630,7 @@ static int is_errata93(struct pt_regs *regs, unsigned long address)
+ static int is_errata100(struct pt_regs *regs, unsigned long address)
+ {
+ #ifdef CONFIG_X86_64
+-	if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32))
++	if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32))
+ 		return 1;
+ #endif
+ 	return 0;
+@@ -573,7 +657,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address)
+ }
+ 
+ static const char nx_warning[] = KERN_CRIT
+-"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n";
++"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n";
+ 
+ static void
+ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
+@@ -582,15 +666,27 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
+ 	if (!oops_may_print())
+ 		return;
+ 
+-	if (error_code & PF_INSTR) {
++	if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) {
+ 		unsigned int level;
+ 
+ 		pte_t *pte = lookup_address(address, &level);
+ 
+ 		if (pte && pte_present(*pte) && !pte_exec(*pte))
+-			printk(nx_warning, from_kuid(&init_user_ns, current_uid()));
++			printk(nx_warning, from_kuid_munged(&init_user_ns, current_uid()), current->comm, task_pid_nr(current));
+ 	}
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	if (init_mm.start_code <= address && address < init_mm.end_code) {
++		if (current->signal->curr_ip)
++			printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n",
++					&current->signal->curr_ip, current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
++		else
++			printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", current->comm, task_pid_nr(current),
++					from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
++	}
++#endif
++
+ 	printk(KERN_ALERT "BUG: unable to handle kernel ");
+ 	if (address < PAGE_SIZE)
+ 		printk(KERN_CONT "NULL pointer dereference");
+@@ -771,6 +867,22 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
+ 				return;
+ 		}
+ #endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++		if (pax_is_fetch_fault(regs, error_code, address)) {
++
++#ifdef CONFIG_PAX_EMUTRAMP
++			switch (pax_handle_fetch_fault(regs)) {
++			case 2:
++				return;
++			}
++#endif
++
++			pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
++			do_group_exit(SIGKILL);
++		}
++#endif
++
+ 		/* Kernel addresses are always protection faults: */
+ 		if (address >= TASK_SIZE)
+ 			error_code |= PF_PROT;
+@@ -853,7 +965,7 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
+ 	if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
+ 		printk(KERN_ERR
+ 	"MCE: Killing %s:%d due to hardware memory corruption fault at %lx\n",
+-			tsk->comm, tsk->pid, address);
++			tsk->comm, task_pid_nr(tsk), address);
+ 		code = BUS_MCEERR_AR;
+ 	}
+ #endif
+@@ -905,6 +1017,99 @@ static int spurious_fault_check(unsigned long error_code, pte_t *pte)
+ 	return 1;
+ }
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code)
++{
++	pte_t *pte;
++	pmd_t *pmd;
++	spinlock_t *ptl;
++	unsigned char pte_mask;
++
++	if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) ||
++	    !(mm->pax_flags & MF_PAX_PAGEEXEC))
++		return 0;
++
++	/* PaX: it's our fault, let's handle it if we can */
++
++	/* PaX: take a look at read faults before acquiring any locks */
++	if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) {
++		/* instruction fetch attempt from a protected page in user mode */
++		up_read(&mm->mmap_sem);
++
++#ifdef CONFIG_PAX_EMUTRAMP
++		switch (pax_handle_fetch_fault(regs)) {
++		case 2:
++			return 1;
++		}
++#endif
++
++		pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp);
++		do_group_exit(SIGKILL);
++	}
++
++	pmd = pax_get_pmd(mm, address);
++	if (unlikely(!pmd))
++		return 0;
++
++	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
++	if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) {
++		pte_unmap_unlock(pte, ptl);
++		return 0;
++	}
++
++	if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) {
++		/* write attempt to a protected page in user mode */
++		pte_unmap_unlock(pte, ptl);
++		return 0;
++	}
++
++#ifdef CONFIG_SMP
++	if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask)))
++#else
++	if (likely(address > get_limit(regs->cs)))
++#endif
++	{
++		set_pte(pte, pte_mkread(*pte));
++		__flush_tlb_one(address);
++		pte_unmap_unlock(pte, ptl);
++		up_read(&mm->mmap_sem);
++		return 1;
++	}
++
++	pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1));
++
++	/*
++	 * PaX: fill DTLB with user rights and retry
++	 */
++	__asm__ __volatile__ (
++		"orb %2,(%1)\n"
++#if defined(CONFIG_M586) || defined(CONFIG_M586TSC)
++/*
++ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's
++ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any*
++ * page fault when examined during a TLB load attempt. this is true not only
++ * for PTEs holding a non-present entry but also present entries that will
++ * raise a page fault (such as those set up by PaX, or the copy-on-write
++ * mechanism). in effect it means that we do *not* need to flush the TLBs
++ * for our target pages since their PTEs are simply not in the TLBs at all.
++
++ * the best thing in omitting it is that we gain around 15-20% speed in the
++ * fast path of the page fault handler and can get rid of tracing since we
++ * can no longer flush unintended entries.
++ */
++		"invlpg (%0)\n"
++#endif
++		__copyuser_seg"testb $0,(%0)\n"
++		"xorb %3,(%1)\n"
++		:
++		: "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER)
++		: "memory", "cc");
++	pte_unmap_unlock(pte, ptl);
++	up_read(&mm->mmap_sem);
++	return 1;
++}
++#endif
++
+ /*
+  * Handle a spurious fault caused by a stale TLB entry.
+  *
+@@ -971,6 +1176,9 @@ int show_unhandled_signals = 1;
+ static inline int
+ access_error(unsigned long error_code, struct vm_area_struct *vma)
+ {
++	if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC))
++		return 1;
++
+ 	if (error_code & PF_WRITE) {
+ 		/* write, present and write, not present: */
+ 		if (unlikely(!(vma->vm_flags & VM_WRITE)))
+@@ -1005,7 +1213,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
+ 	if (error_code & PF_USER)
+ 		return false;
+ 
+-	if (!user_mode_vm(regs) && (regs->flags & X86_EFLAGS_AC))
++	if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
+ 		return false;
+ 
+ 	return true;
+@@ -1033,6 +1241,22 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
+ 	tsk = current;
+ 	mm = tsk->mm;
+ 
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++	if (!user_mode(regs) && address < 2 * pax_user_shadow_base) {
++		if (!search_exception_tables(regs->ip)) {
++			printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
++			bad_area_nosemaphore(regs, error_code, address);
++			return;
++		}
++		if (address < pax_user_shadow_base) {
++			printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n");
++			printk(KERN_ERR "PAX: faulting IP: %pS\n", (void *)regs->ip);
++			show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR);
++		} else
++			address -= pax_user_shadow_base;
++	}
++#endif
++
+ 	/*
+ 	 * Detect and handle instructions that would cause a page fault for
+ 	 * both a tracked kernel page and a userspace page.
+@@ -1110,7 +1334,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
+ 	 * User-mode registers count as a user access even for any
+ 	 * potential system fault or CPU buglet:
+ 	 */
+-	if (user_mode_vm(regs)) {
++	if (user_mode(regs)) {
+ 		local_irq_enable();
+ 		error_code |= PF_USER;
+ 		flags |= FAULT_FLAG_USER;
+@@ -1157,6 +1381,11 @@ retry:
+ 		might_sleep();
+ 	}
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC)
++	if (pax_handle_pageexec_fault(regs, mm, address, error_code))
++		return;
++#endif
++
+ 	vma = find_vma(mm, address);
+ 	if (unlikely(!vma)) {
+ 		bad_area(regs, error_code, address);
+@@ -1168,18 +1397,24 @@ retry:
+ 		bad_area(regs, error_code, address);
+ 		return;
+ 	}
+-	if (error_code & PF_USER) {
+-		/*
+-		 * Accessing the stack below %sp is always a bug.
+-		 * The large cushion allows instructions like enter
+-		 * and pusha to work. ("enter $65535, $31" pushes
+-		 * 32 pointers and then decrements %sp by 65535.)
+-		 */
+-		if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) {
+-			bad_area(regs, error_code, address);
+-			return;
+-		}
++	/*
++	 * Accessing the stack below %sp is always a bug.
++	 * The large cushion allows instructions like enter
++	 * and pusha to work. ("enter $65535, $31" pushes
++	 * 32 pointers and then decrements %sp by 65535.)
++	 */
++	if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) {
++		bad_area(regs, error_code, address);
++		return;
+ 	}
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) {
++		bad_area(regs, error_code, address);
++		return;
++	}
++#endif
++
+ 	if (unlikely(expand_stack(vma, address))) {
+ 		bad_area(regs, error_code, address);
+ 		return;
+@@ -1292,3 +1527,292 @@ trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
+ 	exception_exit(prev_state);
+ }
+ #endif /* CONFIG_TRACING */
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++static bool pax_is_fetch_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
++{
++	struct mm_struct *mm = current->mm;
++	unsigned long ip = regs->ip;
++
++	if (v8086_mode(regs))
++		ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff);
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (mm->pax_flags & MF_PAX_PAGEEXEC) {
++		if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR))
++			return true;
++		if (!(error_code & (PF_PROT | PF_WRITE)) && ip == address)
++			return true;
++		return false;
++	}
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
++		if (!(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address))
++			return true;
++		return false;
++	}
++#endif
++
++	return false;
++}
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++static int pax_handle_fetch_fault_32(struct pt_regs *regs)
++{
++	int err;
++
++	do { /* PaX: libffi trampoline emulation */
++		unsigned char mov, jmp;
++		unsigned int addr1, addr2;
++
++#ifdef CONFIG_X86_64
++		if ((regs->ip + 9) >> 32)
++			break;
++#endif
++
++		err = get_user(mov, (unsigned char __user *)regs->ip);
++		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
++		err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
++		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
++
++		if (err)
++			break;
++
++		if (mov == 0xB8 && jmp == 0xE9) {
++			regs->ax = addr1;
++			regs->ip = (unsigned int)(regs->ip + addr2 + 10);
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: gcc trampoline emulation #1 */
++		unsigned char mov1, mov2;
++		unsigned short jmp;
++		unsigned int addr1, addr2;
++
++#ifdef CONFIG_X86_64
++		if ((regs->ip + 11) >> 32)
++			break;
++#endif
++
++		err = get_user(mov1, (unsigned char __user *)regs->ip);
++		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
++		err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5));
++		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
++		err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10));
++
++		if (err)
++			break;
++
++		if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) {
++			regs->cx = addr1;
++			regs->ax = addr2;
++			regs->ip = addr2;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: gcc trampoline emulation #2 */
++		unsigned char mov, jmp;
++		unsigned int addr1, addr2;
++
++#ifdef CONFIG_X86_64
++		if ((regs->ip + 9) >> 32)
++			break;
++#endif
++
++		err = get_user(mov, (unsigned char __user *)regs->ip);
++		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1));
++		err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5));
++		err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6));
++
++		if (err)
++			break;
++
++		if (mov == 0xB9 && jmp == 0xE9) {
++			regs->cx = addr1;
++			regs->ip = (unsigned int)(regs->ip + addr2 + 10);
++			return 2;
++		}
++	} while (0);
++
++	return 1; /* PaX in action */
++}
++
++#ifdef CONFIG_X86_64
++static int pax_handle_fetch_fault_64(struct pt_regs *regs)
++{
++	int err;
++
++	do { /* PaX: libffi trampoline emulation */
++		unsigned short mov1, mov2, jmp1;
++		unsigned char stcclc, jmp2;
++		unsigned long addr1, addr2;
++
++		err = get_user(mov1, (unsigned short __user *)regs->ip);
++		err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
++		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
++		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
++		err |= get_user(stcclc, (unsigned char __user *)(regs->ip + 20));
++		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 21));
++		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 23));
++
++		if (err)
++			break;
++
++		if (mov1 == 0xBB49 && mov2 == 0xBA49 && (stcclc == 0xF8 || stcclc == 0xF9) && jmp1 == 0xFF49 && jmp2 == 0xE3) {
++			regs->r11 = addr1;
++			regs->r10 = addr2;
++			if (stcclc == 0xF8)
++				regs->flags &= ~X86_EFLAGS_CF;
++			else
++				regs->flags |= X86_EFLAGS_CF;
++			regs->ip = addr1;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: gcc trampoline emulation #1 */
++		unsigned short mov1, mov2, jmp1;
++		unsigned char jmp2;
++		unsigned int addr1;
++		unsigned long addr2;
++
++		err = get_user(mov1, (unsigned short __user *)regs->ip);
++		err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2));
++		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6));
++		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8));
++		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16));
++		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18));
++
++		if (err)
++			break;
++
++		if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
++			regs->r11 = addr1;
++			regs->r10 = addr2;
++			regs->ip = addr1;
++			return 2;
++		}
++	} while (0);
++
++	do { /* PaX: gcc trampoline emulation #2 */
++		unsigned short mov1, mov2, jmp1;
++		unsigned char jmp2;
++		unsigned long addr1, addr2;
++
++		err = get_user(mov1, (unsigned short __user *)regs->ip);
++		err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2));
++		err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10));
++		err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12));
++		err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20));
++		err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22));
++
++		if (err)
++			break;
++
++		if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) {
++			regs->r11 = addr1;
++			regs->r10 = addr2;
++			regs->ip = addr1;
++			return 2;
++		}
++	} while (0);
++
++	return 1; /* PaX in action */
++}
++#endif
++
++/*
++ * PaX: decide what to do with offenders (regs->ip = fault address)
++ *
++ * returns 1 when task should be killed
++ *         2 when gcc trampoline was detected
++ */
++static int pax_handle_fetch_fault(struct pt_regs *regs)
++{
++	if (v8086_mode(regs))
++		return 1;
++
++	if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP))
++		return 1;
++
++#ifdef CONFIG_X86_32
++	return pax_handle_fetch_fault_32(regs);
++#else
++	if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))
++		return pax_handle_fetch_fault_32(regs);
++	else
++		return pax_handle_fetch_fault_64(regs);
++#endif
++}
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++void pax_report_insns(struct pt_regs *regs, void *pc, void *sp)
++{
++	long i;
++
++	printk(KERN_ERR "PAX: bytes at PC: ");
++	for (i = 0; i < 20; i++) {
++		unsigned char c;
++		if (get_user(c, (unsigned char __force_user *)pc+i))
++			printk(KERN_CONT "?? ");
++		else
++			printk(KERN_CONT "%02x ", c);
++	}
++	printk("\n");
++
++	printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long));
++	for (i = -1; i < 80 / (long)sizeof(long); i++) {
++		unsigned long c;
++		if (get_user(c, (unsigned long __force_user *)sp+i)) {
++#ifdef CONFIG_X86_32
++			printk(KERN_CONT "???????? ");
++#else
++			if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)))
++				printk(KERN_CONT "???????? ???????? ");
++			else
++				printk(KERN_CONT "???????????????? ");
++#endif
++		} else {
++#ifdef CONFIG_X86_64
++			if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT))) {
++				printk(KERN_CONT "%08x ", (unsigned int)c);
++				printk(KERN_CONT "%08x ", (unsigned int)(c >> 32));
++			} else
++#endif
++				printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c);
++		}
++	}
++	printk("\n");
++}
++#endif
++
++/**
++ * probe_kernel_write(): safely attempt to write to a location
++ * @dst: address to write to
++ * @src: pointer to the data that shall be written
++ * @size: size of the data chunk
++ *
++ * Safely write to address @dst from the buffer at @src.  If a kernel fault
++ * happens, handle that and return -EFAULT.
++ */
++long notrace probe_kernel_write(void *dst, const void *src, size_t size)
++{
++	long ret;
++	mm_segment_t old_fs = get_fs();
++
++	set_fs(KERNEL_DS);
++	pagefault_disable();
++	pax_open_kernel();
++	ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
++	pax_close_kernel();
++	pagefault_enable();
++	set_fs(old_fs);
++
++	return ret ? -EFAULT : 0;
++}
+diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
+index 448ee89..88fe381 100644
+--- a/arch/x86/mm/gup.c
++++ b/arch/x86/mm/gup.c
+@@ -268,7 +268,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
+ 	addr = start;
+ 	len = (unsigned long) nr_pages << PAGE_SHIFT;
+ 	end = start + len;
+-	if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
++	if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
+ 					(void __user *)start, len)))
+ 		return 0;
+ 
+@@ -344,6 +344,10 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
+ 		goto slow_irqon;
+ #endif
+ 
++	if (unlikely(!access_ok_noprefault(write ? VERIFY_WRITE : VERIFY_READ,
++					(void __user *)start, len)))
++		return 0;
++
+ 	/*
+ 	 * XXX: batch / limit 'nr', to avoid large irq off latency
+ 	 * needs some instrumenting to determine the common sizes used by
+diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
+index 4500142..53a363c 100644
+--- a/arch/x86/mm/highmem_32.c
++++ b/arch/x86/mm/highmem_32.c
+@@ -45,7 +45,11 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot)
+ 	idx = type + KM_TYPE_NR*smp_processor_id();
+ 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+ 	BUG_ON(!pte_none(*(kmap_pte-idx)));
++
++	pax_open_kernel();
+ 	set_pte(kmap_pte-idx, mk_pte(page, prot));
++	pax_close_kernel();
++
+ 	arch_flush_lazy_mmu_mode();
+ 
+ 	return (void *)vaddr;
+diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
+index 006cc91..bf05a83 100644
+--- a/arch/x86/mm/hugetlbpage.c
++++ b/arch/x86/mm/hugetlbpage.c
+@@ -86,23 +86,24 @@ int pud_huge(pud_t pud)
+ #ifdef CONFIG_HUGETLB_PAGE
+ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
+ 		unsigned long addr, unsigned long len,
+-		unsigned long pgoff, unsigned long flags)
++		unsigned long pgoff, unsigned long flags, unsigned long offset)
+ {
+ 	struct hstate *h = hstate_file(file);
+ 	struct vm_unmapped_area_info info;
+-
++	
+ 	info.flags = 0;
+ 	info.length = len;
+ 	info.low_limit = current->mm->mmap_legacy_base;
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ 
+ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+ 		unsigned long addr0, unsigned long len,
+-		unsigned long pgoff, unsigned long flags)
++		unsigned long pgoff, unsigned long flags, unsigned long offset)
+ {
+ 	struct hstate *h = hstate_file(file);
+ 	struct vm_unmapped_area_info info;
+@@ -114,6 +115,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+ 	info.high_limit = current->mm->mmap_base;
+ 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ 	info.align_offset = 0;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+@@ -126,6 +128,12 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.flags = 0;
+ 		info.low_limit = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (current->mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += current->mm->delta_mmap;
++#endif
++
+ 		info.high_limit = TASK_SIZE;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+@@ -140,10 +148,20 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+ 	struct hstate *h = hstate_file(file);
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_area_struct *vma;
++	unsigned long pax_task_size = TASK_SIZE;
++	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
+ 
+ 	if (len & ~huge_page_mask(h))
+ 		return -EINVAL;
+-	if (len > TASK_SIZE)
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++	pax_task_size -= PAGE_SIZE;
++
++	if (len > pax_task_size)
+ 		return -ENOMEM;
+ 
+ 	if (flags & MAP_FIXED) {
+@@ -152,19 +170,22 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+ 		return addr;
+ 	}
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		addr = ALIGN(addr, huge_page_size(h));
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 	if (mm->get_unmapped_area == arch_get_unmapped_area)
+ 		return hugetlb_get_unmapped_area_bottomup(file, addr, len,
+-				pgoff, flags);
++				pgoff, flags, offset);
+ 	else
+ 		return hugetlb_get_unmapped_area_topdown(file, addr, len,
+-				pgoff, flags);
++				pgoff, flags, offset);
+ }
+ #endif /* CONFIG_HUGETLB_PAGE */
+ 
+diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
+index f971306..e83e0f6 100644
+--- a/arch/x86/mm/init.c
++++ b/arch/x86/mm/init.c
+@@ -4,6 +4,7 @@
+ #include <linux/swap.h>
+ #include <linux/memblock.h>
+ #include <linux/bootmem.h>	/* for max_low_pfn */
++#include <linux/tboot.h>
+ 
+ #include <asm/cacheflush.h>
+ #include <asm/e820.h>
+@@ -17,6 +18,8 @@
+ #include <asm/proto.h>
+ #include <asm/dma.h>		/* for MAX_DMA_PFN */
+ #include <asm/microcode.h>
++#include <asm/desc.h>
++#include <asm/bios_ebda.h>
+ 
+ #include "mm_internal.h"
+ 
+@@ -563,7 +566,18 @@ void __init init_mem_mapping(void)
+ 	early_ioremap_page_table_range_init();
+ #endif
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	clone_pgd_range(get_cpu_pgd(0, kernel) + KERNEL_PGD_BOUNDARY,
++			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
++			KERNEL_PGD_PTRS);
++	clone_pgd_range(get_cpu_pgd(0, user) + KERNEL_PGD_BOUNDARY,
++			swapper_pg_dir + KERNEL_PGD_BOUNDARY,
++			KERNEL_PGD_PTRS);
++	load_cr3(get_cpu_pgd(0, kernel));
++#else
+ 	load_cr3(swapper_pg_dir);
++#endif
++
+ 	__flush_tlb_all();
+ 
+ 	early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
+@@ -579,10 +593,40 @@ void __init init_mem_mapping(void)
+  * Access has to be given to non-kernel-ram areas as well, these contain the PCI
+  * mmio resources as well as potential bios/acpi data regions.
+  */
++
++#ifdef CONFIG_GRKERNSEC_KMEM
++static unsigned int ebda_start __read_only;
++static unsigned int ebda_end __read_only;
++#endif
++
+ int devmem_is_allowed(unsigned long pagenr)
+ {
+-	if (pagenr < 256)
++#ifdef CONFIG_GRKERNSEC_KMEM
++	/* allow BDA */
++	if (!pagenr)
+ 		return 1;
++	/* allow EBDA */
++	if (pagenr >= ebda_start && pagenr < ebda_end)
++		return 1;
++	/* if tboot is in use, allow access to its hardcoded serial log range */
++	if (tboot_enabled() && ((0x60000 >> PAGE_SHIFT) <= pagenr) && (pagenr < (0x68000 >> PAGE_SHIFT)))
++		return 1;
++#else
++	if (!pagenr)
++		return 1;
++#ifdef CONFIG_VM86
++	if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT))
++		return 1;
++#endif
++#endif
++
++	if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT))
++		return 1;
++#ifdef CONFIG_GRKERNSEC_KMEM
++	/* throw out everything else below 1MB */
++	if (pagenr <= 256)
++		return 0;
++#endif
+ 	if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
+ 		return 0;
+ 	if (!page_is_ram(pagenr))
+@@ -628,8 +672,117 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
+ #endif
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_KMEM
++static inline void gr_init_ebda(void)
++{
++	unsigned int ebda_addr;
++	unsigned int ebda_size = 0;
++
++	ebda_addr = get_bios_ebda();
++	if (ebda_addr) {
++		ebda_size = *(unsigned char *)phys_to_virt(ebda_addr);
++		ebda_size <<= 10;
++	}
++	if (ebda_addr && ebda_size) {
++		ebda_start = ebda_addr >> PAGE_SHIFT;
++		ebda_end = min((unsigned int)PAGE_ALIGN(ebda_addr + ebda_size), (unsigned int)0xa0000) >> PAGE_SHIFT;
++	} else {
++		ebda_start = 0x9f000 >> PAGE_SHIFT;
++		ebda_end = 0xa0000 >> PAGE_SHIFT;
++	}
++}
++#else
++static inline void gr_init_ebda(void) { }
++#endif
++
+ void free_initmem(void)
+ {
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_X86_32
++	/* PaX: limit KERNEL_CS to actual size */
++	unsigned long addr, limit;
++	struct desc_struct d;
++	int cpu;
++#else
++	pgd_t *pgd;
++	pud_t *pud;
++	pmd_t *pmd;
++	unsigned long addr, end;
++#endif
++#endif
++
++	gr_init_ebda();
++
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_X86_32
++	limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext;
++	limit = (limit - 1UL) >> PAGE_SHIFT;
++
++	memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE);
++	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
++		pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC);
++		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S);
++		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEXEC_KERNEL_CS, &d, DESCTYPE_S);
++	}
++
++	/* PaX: make KERNEL_CS read-only */
++	addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text));
++	if (!paravirt_enabled())
++		set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT);
++/*
++		for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) {
++			pgd = pgd_offset_k(addr);
++			pud = pud_offset(pgd, addr);
++			pmd = pmd_offset(pud, addr);
++			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
++		}
++*/
++#ifdef CONFIG_X86_PAE
++	set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT);
++/*
++	for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) {
++		pgd = pgd_offset_k(addr);
++		pud = pud_offset(pgd, addr);
++		pmd = pmd_offset(pud, addr);
++	set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
++	}
++*/
++#endif
++
++#ifdef CONFIG_MODULES
++	set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT);
++#endif
++
++#else
++	/* PaX: make kernel code/rodata read-only, rest non-executable */
++	for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) {
++		pgd = pgd_offset_k(addr);
++		pud = pud_offset(pgd, addr);
++		pmd = pmd_offset(pud, addr);
++		if (!pmd_present(*pmd))
++			continue;
++		if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata)
++			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
++		else
++			set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask)));
++	}
++
++	addr = (unsigned long)__va(__pa(__START_KERNEL_map));
++	end = addr + KERNEL_IMAGE_SIZE;
++	for (; addr < end; addr += PMD_SIZE) {
++	pgd = pgd_offset_k(addr);
++		pud = pud_offset(pgd, addr);
++		pmd = pmd_offset(pud, addr);
++		if (!pmd_present(*pmd))
++			continue;
++		if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata)))
++			set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW));
++	}
++#endif
++
++	flush_tlb_all();
++#endif
++
+ 	free_init_pages("unused kernel",
+ 			(unsigned long)(&__init_begin),
+ 			(unsigned long)(&__init_end));
+diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
+index e395048..cd38278 100644
+--- a/arch/x86/mm/init_32.c
++++ b/arch/x86/mm/init_32.c
+@@ -62,33 +62,6 @@ static noinline int do_test_wp_bit(void);
+ bool __read_mostly __vmalloc_start_set = false;
+ 
+ /*
+- * Creates a middle page table and puts a pointer to it in the
+- * given global directory entry. This only returns the gd entry
+- * in non-PAE compilation mode, since the middle layer is folded.
+- */
+-static pmd_t * __init one_md_table_init(pgd_t *pgd)
+-{
+-	pud_t *pud;
+-	pmd_t *pmd_table;
+-
+-#ifdef CONFIG_X86_PAE
+-	if (!(pgd_val(*pgd) & _PAGE_PRESENT)) {
+-		pmd_table = (pmd_t *)alloc_low_page();
+-		paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT);
+-		set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT));
+-		pud = pud_offset(pgd, 0);
+-		BUG_ON(pmd_table != pmd_offset(pud, 0));
+-
+-		return pmd_table;
+-	}
+-#endif
+-	pud = pud_offset(pgd, 0);
+-	pmd_table = pmd_offset(pud, 0);
+-
+-	return pmd_table;
+-}
+-
+-/*
+  * Create a page table and place a pointer to it in a middle page
+  * directory entry:
+  */
+@@ -98,13 +71,28 @@ static pte_t * __init one_page_table_init(pmd_t *pmd)
+ 		pte_t *page_table = (pte_t *)alloc_low_page();
+ 
+ 		paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT);
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++		set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE));
++#else
+ 		set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
++#endif
+ 		BUG_ON(page_table != pte_offset_kernel(pmd, 0));
+ 	}
+ 
+ 	return pte_offset_kernel(pmd, 0);
+ }
+ 
++static pmd_t * __init one_md_table_init(pgd_t *pgd)
++{
++	pud_t *pud;
++	pmd_t *pmd_table;
++
++	pud = pud_offset(pgd, 0);
++	pmd_table = pmd_offset(pud, 0);
++
++	return pmd_table;
++}
++
+ pmd_t * __init populate_extra_pmd(unsigned long vaddr)
+ {
+ 	int pgd_idx = pgd_index(vaddr);
+@@ -208,6 +196,7 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
+ 	int pgd_idx, pmd_idx;
+ 	unsigned long vaddr;
+ 	pgd_t *pgd;
++	pud_t *pud;
+ 	pmd_t *pmd;
+ 	pte_t *pte = NULL;
+ 	unsigned long count = page_table_range_init_count(start, end);
+@@ -222,8 +211,13 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
+ 	pgd = pgd_base + pgd_idx;
+ 
+ 	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) {
+-		pmd = one_md_table_init(pgd);
+-		pmd = pmd + pmd_index(vaddr);
++		pud = pud_offset(pgd, vaddr);
++		pmd = pmd_offset(pud, vaddr);
++
++#ifdef CONFIG_X86_PAE
++		paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
++#endif
++
+ 		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
+ 							pmd++, pmd_idx++) {
+ 			pte = page_table_kmap_check(one_page_table_init(pmd),
+@@ -235,11 +229,20 @@ page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd_base)
+ 	}
+ }
+ 
+-static inline int is_kernel_text(unsigned long addr)
++static inline int is_kernel_text(unsigned long start, unsigned long end)
+ {
+-	if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end)
+-		return 1;
+-	return 0;
++	if ((start >= ktla_ktva((unsigned long)_etext) ||
++	     end <= ktla_ktva((unsigned long)_stext)) &&
++	    (start >= ktla_ktva((unsigned long)_einittext) ||
++	     end <= ktla_ktva((unsigned long)_sinittext)) &&
++
++#ifdef CONFIG_ACPI_SLEEP
++	    (start >= (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) &&
++#endif
++
++	    (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000)))
++		return 0;
++	return 1;
+ }
+ 
+ /*
+@@ -256,9 +259,10 @@ kernel_physical_mapping_init(unsigned long start,
+ 	unsigned long last_map_addr = end;
+ 	unsigned long start_pfn, end_pfn;
+ 	pgd_t *pgd_base = swapper_pg_dir;
+-	int pgd_idx, pmd_idx, pte_ofs;
++	unsigned int pgd_idx, pmd_idx, pte_ofs;
+ 	unsigned long pfn;
+ 	pgd_t *pgd;
++	pud_t *pud;
+ 	pmd_t *pmd;
+ 	pte_t *pte;
+ 	unsigned pages_2m, pages_4k;
+@@ -291,8 +295,13 @@ repeat:
+ 	pfn = start_pfn;
+ 	pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
+ 	pgd = pgd_base + pgd_idx;
+-	for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) {
+-		pmd = one_md_table_init(pgd);
++	for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) {
++		pud = pud_offset(pgd, 0);
++		pmd = pmd_offset(pud, 0);
++
++#ifdef CONFIG_X86_PAE
++		paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT);
++#endif
+ 
+ 		if (pfn >= end_pfn)
+ 			continue;
+@@ -304,14 +313,13 @@ repeat:
+ #endif
+ 		for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn;
+ 		     pmd++, pmd_idx++) {
+-			unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET;
++			unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET;
+ 
+ 			/*
+ 			 * Map with big pages if possible, otherwise
+ 			 * create normal page tables:
+ 			 */
+ 			if (use_pse) {
+-				unsigned int addr2;
+ 				pgprot_t prot = PAGE_KERNEL_LARGE;
+ 				/*
+ 				 * first pass will use the same initial
+@@ -322,11 +330,7 @@ repeat:
+ 						 _PAGE_PSE);
+ 
+ 				pfn &= PMD_MASK >> PAGE_SHIFT;
+-				addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE +
+-					PAGE_OFFSET + PAGE_SIZE-1;
+-
+-				if (is_kernel_text(addr) ||
+-				    is_kernel_text(addr2))
++				if (is_kernel_text(address, address + PMD_SIZE))
+ 					prot = PAGE_KERNEL_LARGE_EXEC;
+ 
+ 				pages_2m++;
+@@ -343,7 +347,7 @@ repeat:
+ 			pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET);
+ 			pte += pte_ofs;
+ 			for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn;
+-			     pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) {
++			     pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
+ 				pgprot_t prot = PAGE_KERNEL;
+ 				/*
+ 				 * first pass will use the same initial
+@@ -351,7 +355,7 @@ repeat:
+ 				 */
+ 				pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR);
+ 
+-				if (is_kernel_text(addr))
++				if (is_kernel_text(address, address + PAGE_SIZE))
+ 					prot = PAGE_KERNEL_EXEC;
+ 
+ 				pages_4k++;
+@@ -474,7 +478,7 @@ void __init native_pagetable_init(void)
+ 
+ 		pud = pud_offset(pgd, va);
+ 		pmd = pmd_offset(pud, va);
+-		if (!pmd_present(*pmd))
++		if (!pmd_present(*pmd)) // PAX TODO || pmd_large(*pmd))
+ 			break;
+ 
+ 		/* should not be large page here */
+@@ -532,12 +536,10 @@ void __init early_ioremap_page_table_range_init(void)
+ 
+ static void __init pagetable_init(void)
+ {
+-	pgd_t *pgd_base = swapper_pg_dir;
+-
+-	permanent_kmaps_init(pgd_base);
++	permanent_kmaps_init(swapper_pg_dir);
+ }
+ 
+-pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
++pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP);
+ EXPORT_SYMBOL_GPL(__supported_pte_mask);
+ 
+ /* user-defined highmem size */
+@@ -787,10 +789,10 @@ void __init mem_init(void)
+ 		((unsigned long)&__init_end -
+ 		 (unsigned long)&__init_begin) >> 10,
+ 
+-		(unsigned long)&_etext, (unsigned long)&_edata,
+-		((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
++		(unsigned long)&_sdata, (unsigned long)&_edata,
++		((unsigned long)&_edata - (unsigned long)&_sdata) >> 10,
+ 
+-		(unsigned long)&_text, (unsigned long)&_etext,
++		ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext),
+ 		((unsigned long)&_etext - (unsigned long)&_text) >> 10);
+ 
+ 	/*
+@@ -883,6 +885,7 @@ void set_kernel_text_rw(void)
+ 	if (!kernel_set_to_readonly)
+ 		return;
+ 
++	start = ktla_ktva(start);
+ 	pr_debug("Set kernel text: %lx - %lx for read write\n",
+ 		 start, start+size);
+ 
+@@ -897,6 +900,7 @@ void set_kernel_text_ro(void)
+ 	if (!kernel_set_to_readonly)
+ 		return;
+ 
++	start = ktla_ktva(start);
+ 	pr_debug("Set kernel text: %lx - %lx for read only\n",
+ 		 start, start+size);
+ 
+@@ -925,6 +929,7 @@ void mark_rodata_ro(void)
+ 	unsigned long start = PFN_ALIGN(_text);
+ 	unsigned long size = PFN_ALIGN(_etext) - start;
+ 
++	start = ktla_ktva(start);
+ 	set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
+ 	printk(KERN_INFO "Write protecting the kernel text: %luk\n",
+ 		size >> 10);
+diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
+index 2308a40..b17a80d 100644
+--- a/arch/x86/mm/init_64.c
++++ b/arch/x86/mm/init_64.c
+@@ -151,7 +151,7 @@ early_param("gbpages", parse_direct_gbpages_on);
+  * around without checking the pgd every time.
+  */
+ 
+-pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP;
++pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP);
+ EXPORT_SYMBOL_GPL(__supported_pte_mask);
+ 
+ int force_personality32;
+@@ -184,12 +184,29 @@ void sync_global_pgds(unsigned long start, unsigned long end)
+ 
+ 	for (address = start; address <= end; address += PGDIR_SIZE) {
+ 		const pgd_t *pgd_ref = pgd_offset_k(address);
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		unsigned long cpu;
++#else
+ 		struct page *page;
++#endif
+ 
+ 		if (pgd_none(*pgd_ref))
+ 			continue;
+ 
+ 		spin_lock(&pgd_lock);
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
++			pgd_t *pgd = pgd_offset_cpu(cpu, user, address);
++
++			if (pgd_none(*pgd))
++				set_pgd(pgd, *pgd_ref);
++			else
++				BUG_ON(pgd_page_vaddr(*pgd)
++				       != pgd_page_vaddr(*pgd_ref));
++			pgd = pgd_offset_cpu(cpu, kernel, address);
++#else
+ 		list_for_each_entry(page, &pgd_list, lru) {
+ 			pgd_t *pgd;
+ 			spinlock_t *pgt_lock;
+@@ -198,6 +215,7 @@ void sync_global_pgds(unsigned long start, unsigned long end)
+ 			/* the pgt_lock only for Xen */
+ 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
+ 			spin_lock(pgt_lock);
++#endif
+ 
+ 			if (pgd_none(*pgd))
+ 				set_pgd(pgd, *pgd_ref);
+@@ -205,7 +223,10 @@ void sync_global_pgds(unsigned long start, unsigned long end)
+ 				BUG_ON(pgd_page_vaddr(*pgd)
+ 				       != pgd_page_vaddr(*pgd_ref));
+ 
++#ifndef CONFIG_PAX_PER_CPU_PGD
+ 			spin_unlock(pgt_lock);
++#endif
++
+ 		}
+ 		spin_unlock(&pgd_lock);
+ 	}
+@@ -238,7 +259,7 @@ static pud_t *fill_pud(pgd_t *pgd, unsigned long vaddr)
+ {
+ 	if (pgd_none(*pgd)) {
+ 		pud_t *pud = (pud_t *)spp_getpage();
+-		pgd_populate(&init_mm, pgd, pud);
++		pgd_populate_kernel(&init_mm, pgd, pud);
+ 		if (pud != pud_offset(pgd, 0))
+ 			printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n",
+ 			       pud, pud_offset(pgd, 0));
+@@ -250,7 +271,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr)
+ {
+ 	if (pud_none(*pud)) {
+ 		pmd_t *pmd = (pmd_t *) spp_getpage();
+-		pud_populate(&init_mm, pud, pmd);
++		pud_populate_kernel(&init_mm, pud, pmd);
+ 		if (pmd != pmd_offset(pud, 0))
+ 			printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n",
+ 			       pmd, pmd_offset(pud, 0));
+@@ -279,7 +300,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte)
+ 	pmd = fill_pmd(pud, vaddr);
+ 	pte = fill_pte(pmd, vaddr);
+ 
++	pax_open_kernel();
+ 	set_pte(pte, new_pte);
++	pax_close_kernel();
+ 
+ 	/*
+ 	 * It's enough to flush this one mapping.
+@@ -338,14 +361,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
+ 		pgd = pgd_offset_k((unsigned long)__va(phys));
+ 		if (pgd_none(*pgd)) {
+ 			pud = (pud_t *) spp_getpage();
+-			set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE |
+-						_PAGE_USER));
++			set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE));
+ 		}
+ 		pud = pud_offset(pgd, (unsigned long)__va(phys));
+ 		if (pud_none(*pud)) {
+ 			pmd = (pmd_t *) spp_getpage();
+-			set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE |
+-						_PAGE_USER));
++			set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE));
+ 		}
+ 		pmd = pmd_offset(pud, phys);
+ 		BUG_ON(!pmd_none(*pmd));
+@@ -586,7 +607,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
+ 					      prot);
+ 
+ 		spin_lock(&init_mm.page_table_lock);
+-		pud_populate(&init_mm, pud, pmd);
++		pud_populate_kernel(&init_mm, pud, pmd);
+ 		spin_unlock(&init_mm.page_table_lock);
+ 	}
+ 	__flush_tlb_all();
+@@ -627,7 +648,7 @@ kernel_physical_mapping_init(unsigned long start,
+ 						 page_size_mask);
+ 
+ 		spin_lock(&init_mm.page_table_lock);
+-		pgd_populate(&init_mm, pgd, pud);
++		pgd_populate_kernel(&init_mm, pgd, pud);
+ 		spin_unlock(&init_mm.page_table_lock);
+ 		pgd_changed = true;
+ 	}
+@@ -1197,8 +1218,8 @@ int kern_addr_valid(unsigned long addr)
+ static struct vm_area_struct gate_vma = {
+ 	.vm_start	= VSYSCALL_START,
+ 	.vm_end		= VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE),
+-	.vm_page_prot	= PAGE_READONLY_EXEC,
+-	.vm_flags	= VM_READ | VM_EXEC
++	.vm_page_prot	= PAGE_READONLY,
++	.vm_flags	= VM_READ
+ };
+ 
+ struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
+@@ -1232,7 +1253,7 @@ int in_gate_area_no_mm(unsigned long addr)
+ 
+ const char *arch_vma_name(struct vm_area_struct *vma)
+ {
+-	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
++	if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
+ 		return "[vdso]";
+ 	if (vma == &gate_vma)
+ 		return "[vsyscall]";
+diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
+index 7b179b49..6bd17777 100644
+--- a/arch/x86/mm/iomap_32.c
++++ b/arch/x86/mm/iomap_32.c
+@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
+ 	type = kmap_atomic_idx_push();
+ 	idx = type + KM_TYPE_NR * smp_processor_id();
+ 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
++
++	pax_open_kernel();
+ 	set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
++	pax_close_kernel();
++
+ 	arch_flush_lazy_mmu_mode();
+ 
+ 	return (void *)vaddr;
+diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
+index 94bd247..49644a3 100644
+--- a/arch/x86/mm/ioremap.c
++++ b/arch/x86/mm/ioremap.c
+@@ -56,8 +56,8 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
+ 	unsigned long i;
+ 
+ 	for (i = 0; i < nr_pages; ++i)
+-		if (pfn_valid(start_pfn + i) &&
+-		    !PageReserved(pfn_to_page(start_pfn + i)))
++		if (pfn_valid(start_pfn + i) && (start_pfn + i >= 0x100 ||
++		    !PageReserved(pfn_to_page(start_pfn + i))))
+ 			return 1;
+ 
+ 	WARN_ONCE(1, "ioremap on RAM pfn 0x%lx\n", start_pfn);
+@@ -268,7 +268,7 @@ EXPORT_SYMBOL(ioremap_prot);
+  *
+  * Caller must ensure there is only one unmapping for the same pointer.
+  */
+-void iounmap(volatile void __iomem *addr)
++void iounmap(const volatile void __iomem *addr)
+ {
+ 	struct vm_struct *p, *o;
+ 
+@@ -317,23 +317,22 @@ EXPORT_SYMBOL(iounmap);
+  */
+ void *xlate_dev_mem_ptr(unsigned long phys)
+ {
+-	void *addr;
+-	unsigned long start = phys & PAGE_MASK;
+-
+ 	/* If page is RAM, we can use __va. Otherwise ioremap and unmap. */
+-	if (page_is_ram(start >> PAGE_SHIFT))
++	if (page_is_ram(phys >> PAGE_SHIFT))
++#ifdef CONFIG_HIGHMEM
++	if ((phys >> PAGE_SHIFT) < max_low_pfn)
++#endif
+ 		return __va(phys);
+ 
+-	addr = (void __force *)ioremap_cache(start, PAGE_SIZE);
+-	if (addr)
+-		addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK));
+-
+-	return addr;
++	return (void __force *)ioremap_cache(phys, PAGE_SIZE);
+ }
+ 
+ void unxlate_dev_mem_ptr(unsigned long phys, void *addr)
+ {
+ 	if (page_is_ram(phys >> PAGE_SHIFT))
++#ifdef CONFIG_HIGHMEM
++	if ((phys >> PAGE_SHIFT) < max_low_pfn)
++#endif
+ 		return;
+ 
+ 	iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK));
+@@ -351,7 +350,7 @@ static int __init early_ioremap_debug_setup(char *str)
+ early_param("early_ioremap_debug", early_ioremap_debug_setup);
+ 
+ static __initdata int after_paging_init;
+-static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
++static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE);
+ 
+ static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
+ {
+@@ -388,8 +387,7 @@ void __init early_ioremap_init(void)
+ 		slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);
+ 
+ 	pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
+-	memset(bm_pte, 0, sizeof(bm_pte));
+-	pmd_populate_kernel(&init_mm, pmd, bm_pte);
++	pmd_populate_user(&init_mm, pmd, bm_pte);
+ 
+ 	/*
+ 	 * The boot-ioremap range spans multiple pmds, for which
+diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c
+index d87dd6d..bf3fa66 100644
+--- a/arch/x86/mm/kmemcheck/kmemcheck.c
++++ b/arch/x86/mm/kmemcheck/kmemcheck.c
+@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *regs, unsigned long address,
+ 	 * memory (e.g. tracked pages)? For now, we need this to avoid
+ 	 * invoking kmemcheck for PnP BIOS calls.
+ 	 */
+-	if (regs->flags & X86_VM_MASK)
++	if (v8086_mode(regs))
+ 		return false;
+-	if (regs->cs != __KERNEL_CS)
++	if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS)
+ 		return false;
+ 
+ 	pte = kmemcheck_pte_lookup(address);
+diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
+index 3601ff2..b5ba6f7 100644
+--- a/arch/x86/mm/mmap.c
++++ b/arch/x86/mm/mmap.c
+@@ -52,7 +52,7 @@ static unsigned long stack_maxrandom_size(void)
+  * Leave an at least ~128 MB hole with possible stack randomization.
+  */
+ #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
+-#define MAX_GAP (TASK_SIZE/6*5)
++#define MAX_GAP (pax_task_size/6*5)
+ 
+ static int mmap_is_legacy(void)
+ {
+@@ -82,27 +82,40 @@ static unsigned long mmap_rnd(void)
+ 	return rnd << PAGE_SHIFT;
+ }
+ 
+-static unsigned long mmap_base(void)
++static unsigned long mmap_base(struct mm_struct *mm)
+ {
+ 	unsigned long gap = rlimit(RLIMIT_STACK);
++	unsigned long pax_task_size = TASK_SIZE;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
+ 
+ 	if (gap < MIN_GAP)
+ 		gap = MIN_GAP;
+ 	else if (gap > MAX_GAP)
+ 		gap = MAX_GAP;
+ 
+-	return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd());
++	return PAGE_ALIGN(pax_task_size - gap - mmap_rnd());
+ }
+ 
+ /*
+  * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64
+  * does, but not when emulating X86_32
+  */
+-static unsigned long mmap_legacy_base(void)
++static unsigned long mmap_legacy_base(struct mm_struct *mm)
+ {
+-	if (mmap_is_ia32())
++	if (mmap_is_ia32()) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		if (mm->pax_flags & MF_PAX_SEGMEXEC)
++			return SEGMEXEC_TASK_UNMAPPED_BASE;
++		else
++#endif
++
+ 		return TASK_UNMAPPED_BASE;
+-	else
++	} else
+ 		return TASK_UNMAPPED_BASE + mmap_rnd();
+ }
+ 
+@@ -112,8 +125,15 @@ static unsigned long mmap_legacy_base(void)
+  */
+ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+-	mm->mmap_legacy_base = mmap_legacy_base();
+-	mm->mmap_base = mmap_base();
++	mm->mmap_legacy_base = mmap_legacy_base(mm);
++	mm->mmap_base = mmap_base(mm);
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (mm->pax_flags & MF_PAX_RANDMMAP) {
++		mm->mmap_legacy_base += mm->delta_mmap;
++		mm->mmap_base -= mm->delta_mmap + mm->delta_stack;
++	}
++#endif
+ 
+ 	if (mmap_is_legacy()) {
+ 		mm->mmap_base = mm->mmap_legacy_base;
+diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
+index 0057a7a..95c7edd 100644
+--- a/arch/x86/mm/mmio-mod.c
++++ b/arch/x86/mm/mmio-mod.c
+@@ -194,7 +194,7 @@ static void pre(struct kmmio_probe *p, struct pt_regs *regs,
+ 		break;
+ 	default:
+ 		{
+-			unsigned char *ip = (unsigned char *)instptr;
++			unsigned char *ip = (unsigned char *)ktla_ktva(instptr);
+ 			my_trace->opcode = MMIO_UNKNOWN_OP;
+ 			my_trace->width = 0;
+ 			my_trace->value = (*ip) << 16 | *(ip + 1) << 8 |
+@@ -234,7 +234,7 @@ static void post(struct kmmio_probe *p, unsigned long condition,
+ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
+ 							void __iomem *addr)
+ {
+-	static atomic_t next_id;
++	static atomic_unchecked_t next_id;
+ 	struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL);
+ 	/* These are page-unaligned. */
+ 	struct mmiotrace_map map = {
+@@ -258,7 +258,7 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
+ 			.private = trace
+ 		},
+ 		.phys = offset,
+-		.id = atomic_inc_return(&next_id)
++		.id = atomic_inc_return_unchecked(&next_id)
+ 	};
+ 	map.map_id = trace->id;
+ 
+@@ -290,7 +290,7 @@ void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
+ 	ioremap_trace_core(offset, size, addr);
+ }
+ 
+-static void iounmap_trace_core(volatile void __iomem *addr)
++static void iounmap_trace_core(const volatile void __iomem *addr)
+ {
+ 	struct mmiotrace_map map = {
+ 		.phys = 0,
+@@ -328,7 +328,7 @@ not_enabled:
+ 	}
+ }
+ 
+-void mmiotrace_iounmap(volatile void __iomem *addr)
++void mmiotrace_iounmap(const volatile void __iomem *addr)
+ {
+ 	might_sleep();
+ 	if (is_enabled()) /* recheck and proper locking in *_core() */
+diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
+index 27aa0455..0eb1406 100644
+--- a/arch/x86/mm/numa.c
++++ b/arch/x86/mm/numa.c
+@@ -478,7 +478,7 @@ static bool __init numa_meminfo_cover_memory(const struct numa_meminfo *mi)
+ 	return true;
+ }
+ 
+-static int __init numa_register_memblks(struct numa_meminfo *mi)
++static int __init __intentional_overflow(-1) numa_register_memblks(struct numa_meminfo *mi)
+ {
+ 	unsigned long uninitialized_var(pfn_align);
+ 	int i, nid;
+diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
+index 461bc82..4e091a3 100644
+--- a/arch/x86/mm/pageattr-test.c
++++ b/arch/x86/mm/pageattr-test.c
+@@ -35,7 +35,7 @@ enum {
+ 
+ static int pte_testbit(pte_t pte)
+ {
+-	return pte_flags(pte) & _PAGE_UNUSED1;
++	return pte_flags(pte) & _PAGE_CPA_TEST;
+ }
+ 
+ struct split_state {
+diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
+index fed892d..e380153 100644
+--- a/arch/x86/mm/pageattr.c
++++ b/arch/x86/mm/pageattr.c
+@@ -262,7 +262,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
+ 	 */
+ #ifdef CONFIG_PCI_BIOS
+ 	if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT))
+-		pgprot_val(forbidden) |= _PAGE_NX;
++		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
+ #endif
+ 
+ 	/*
+@@ -270,9 +270,10 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
+ 	 * Does not cover __inittext since that is gone later on. On
+ 	 * 64bit we do not enforce !NX on the low mapping
+ 	 */
+-	if (within(address, (unsigned long)_text, (unsigned long)_etext))
+-		pgprot_val(forbidden) |= _PAGE_NX;
++	if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext)))
++		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
+ 
++#ifdef CONFIG_DEBUG_RODATA
+ 	/*
+ 	 * The .rodata section needs to be read-only. Using the pfn
+ 	 * catches all aliases.
+@@ -280,6 +281,7 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
+ 	if (within(pfn, __pa_symbol(__start_rodata) >> PAGE_SHIFT,
+ 		   __pa_symbol(__end_rodata) >> PAGE_SHIFT))
+ 		pgprot_val(forbidden) |= _PAGE_RW;
++#endif
+ 
+ #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
+ 	/*
+@@ -318,6 +320,13 @@ static inline pgprot_t static_protections(pgprot_t prot, unsigned long address,
+ 	}
+ #endif
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	if (within(pfn, __pa(ktla_ktva((unsigned long)&_text)), __pa((unsigned long)&_sdata))) {
++		pgprot_val(forbidden) |= _PAGE_RW;
++		pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask;
++	}
++#endif
++
+ 	prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden));
+ 
+ 	return prot;
+@@ -416,23 +425,37 @@ EXPORT_SYMBOL_GPL(slow_virt_to_phys);
+ static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte)
+ {
+ 	/* change init_mm */
++	pax_open_kernel();
+ 	set_pte_atomic(kpte, pte);
++
+ #ifdef CONFIG_X86_32
+ 	if (!SHARED_KERNEL_PMD) {
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		unsigned long cpu;
++#else
+ 		struct page *page;
++#endif
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++		for (cpu = 0; cpu < nr_cpu_ids; ++cpu) {
++			pgd_t *pgd = get_cpu_pgd(cpu, kernel);
++#else
+ 		list_for_each_entry(page, &pgd_list, lru) {
+-			pgd_t *pgd;
++			pgd_t *pgd = (pgd_t *)page_address(page);
++#endif
++
+ 			pud_t *pud;
+ 			pmd_t *pmd;
+ 
+-			pgd = (pgd_t *)page_address(page) + pgd_index(address);
++			pgd += pgd_index(address);
+ 			pud = pud_offset(pgd, address);
+ 			pmd = pmd_offset(pud, address);
+ 			set_pte_atomic((pte_t *)pmd, pte);
+ 		}
+ 	}
+ #endif
++	pax_close_kernel();
+ }
+ 
+ static int
+diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
+index 65743885..87e9bef 100644
+--- a/arch/x86/mm/pat.c
++++ b/arch/x86/mm/pat.c
+@@ -376,7 +376,7 @@ int free_memtype(u64 start, u64 end)
+ 
+ 	if (!entry) {
+ 		printk(KERN_INFO "%s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
+-		       current->comm, current->pid, start, end - 1);
++			current->comm, task_pid_nr(current), start, end - 1);
+ 		return -EINVAL;
+ 	}
+ 
+@@ -506,8 +506,8 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+ 
+ 	while (cursor < to) {
+ 		if (!devmem_is_allowed(pfn)) {
+-			printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx]\n",
+-				current->comm, from, to - 1);
++			printk(KERN_INFO "Program %s tried to access /dev/mem between [mem %#010Lx-%#010Lx] (%#010Lx)\n",
++				current->comm, from, to - 1, cursor);
+ 			return 0;
+ 		}
+ 		cursor += PAGE_SIZE;
+@@ -577,7 +577,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size, unsigned long flags)
+ 	if (ioremap_change_attr((unsigned long)__va(base), id_sz, flags) < 0) {
+ 		printk(KERN_INFO "%s:%d ioremap_change_attr failed %s "
+ 			"for [mem %#010Lx-%#010Lx]\n",
+-			current->comm, current->pid,
++			current->comm, task_pid_nr(current),
+ 			cattr_name(flags),
+ 			base, (unsigned long long)(base + size-1));
+ 		return -EINVAL;
+@@ -612,7 +612,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
+ 		flags = lookup_memtype(paddr);
+ 		if (want_flags != flags) {
+ 			printk(KERN_WARNING "%s:%d map pfn RAM range req %s for [mem %#010Lx-%#010Lx], got %s\n",
+-				current->comm, current->pid,
++				current->comm, task_pid_nr(current),
+ 				cattr_name(want_flags),
+ 				(unsigned long long)paddr,
+ 				(unsigned long long)(paddr + size - 1),
+@@ -634,7 +634,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
+ 			free_memtype(paddr, paddr + size);
+ 			printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
+ 				" for [mem %#010Lx-%#010Lx], got %s\n",
+-				current->comm, current->pid,
++				current->comm, task_pid_nr(current),
+ 				cattr_name(want_flags),
+ 				(unsigned long long)paddr,
+ 				(unsigned long long)(paddr + size - 1),
+diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
+index 415f6c4..d319983 100644
+--- a/arch/x86/mm/pat_rbtree.c
++++ b/arch/x86/mm/pat_rbtree.c
+@@ -160,7 +160,7 @@ success:
+ 
+ failure:
+ 	printk(KERN_INFO "%s:%d conflicting memory types "
+-		"%Lx-%Lx %s<->%s\n", current->comm, current->pid, start,
++		"%Lx-%Lx %s<->%s\n", current->comm, task_pid_nr(current), start,
+ 		end, cattr_name(found_type), cattr_name(match->type));
+ 	return -EBUSY;
+ }
+diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
+index 9f0614d..92ae64a 100644
+--- a/arch/x86/mm/pf_in.c
++++ b/arch/x86/mm/pf_in.c
+@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned long ins_addr)
+ 	int i;
+ 	enum reason_type rv = OTHERS;
+ 
+-	p = (unsigned char *)ins_addr;
++	p = (unsigned char *)ktla_ktva(ins_addr);
+ 	p += skip_prefix(p, &prf);
+ 	p += get_opcode(p, &opcode);
+ 
+@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(unsigned long ins_addr)
+ 	struct prefix_bits prf;
+ 	int i;
+ 
+-	p = (unsigned char *)ins_addr;
++	p = (unsigned char *)ktla_ktva(ins_addr);
+ 	p += skip_prefix(p, &prf);
+ 	p += get_opcode(p, &opcode);
+ 
+@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned long ins_addr)
+ 	struct prefix_bits prf;
+ 	int i;
+ 
+-	p = (unsigned char *)ins_addr;
++	p = (unsigned char *)ktla_ktva(ins_addr);
+ 	p += skip_prefix(p, &prf);
+ 	p += get_opcode(p, &opcode);
+ 
+@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
+ 	struct prefix_bits prf;
+ 	int i;
+ 
+-	p = (unsigned char *)ins_addr;
++	p = (unsigned char *)ktla_ktva(ins_addr);
+ 	p += skip_prefix(p, &prf);
+ 	p += get_opcode(p, &opcode);
+ 	for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
+@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
+ 	struct prefix_bits prf;
+ 	int i;
+ 
+-	p = (unsigned char *)ins_addr;
++	p = (unsigned char *)ktla_ktva(ins_addr);
+ 	p += skip_prefix(p, &prf);
+ 	p += get_opcode(p, &opcode);
+ 	for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
+diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
+index 0004ac7..b953d7b 100644
+--- a/arch/x86/mm/pgtable.c
++++ b/arch/x86/mm/pgtable.c
+@@ -97,10 +97,71 @@ static inline void pgd_list_del(pgd_t *pgd)
+ 	list_del(&page->lru);
+ }
+ 
+-#define UNSHARED_PTRS_PER_PGD				\
+-	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT;
+ 
++void __shadow_user_pgds(pgd_t *dst, const pgd_t *src)
++{
++	unsigned int count = USER_PGD_PTRS;
+ 
++	if (!pax_user_shadow_base)
++		return;
++
++	while (count--)
++		*dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER);
++}
++#endif
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++void __clone_user_pgds(pgd_t *dst, const pgd_t *src)
++{
++	unsigned int count = USER_PGD_PTRS;
++
++	while (count--) {
++		pgd_t pgd;
++
++#ifdef CONFIG_X86_64
++		pgd = __pgd(pgd_val(*src++) | _PAGE_USER);
++#else
++		pgd = *src++;
++#endif
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++		pgd = __pgd(pgd_val(pgd) & clone_pgd_mask);
++#endif
++
++		*dst++ = pgd;
++	}
++
++}
++#endif
++
++#ifdef CONFIG_X86_64
++#define pxd_t				pud_t
++#define pyd_t				pgd_t
++#define paravirt_release_pxd(pfn)	paravirt_release_pud(pfn)
++#define pgtable_pxd_page_ctor(page)	true
++#define pgtable_pxd_page_dtor(page)	do {} while (0)
++#define pxd_free(mm, pud)		pud_free((mm), (pud))
++#define pyd_populate(mm, pgd, pud)	pgd_populate((mm), (pgd), (pud))
++#define pyd_offset(mm, address)		pgd_offset((mm), (address))
++#define PYD_SIZE			PGDIR_SIZE
++#else
++#define pxd_t				pmd_t
++#define pyd_t				pud_t
++#define paravirt_release_pxd(pfn)	paravirt_release_pmd(pfn)
++#define pgtable_pxd_page_ctor(page)	pgtable_pmd_page_ctor(page)
++#define pgtable_pxd_page_dtor(page)	pgtable_pmd_page_dtor(page)
++#define pxd_free(mm, pud)		pmd_free((mm), (pud))
++#define pyd_populate(mm, pgd, pud)	pud_populate((mm), (pgd), (pud))
++#define pyd_offset(mm, address)		pud_offset((mm), (address))
++#define PYD_SIZE			PUD_SIZE
++#endif
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {}
++static inline void pgd_dtor(pgd_t *pgd) {}
++#else
+ static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
+ {
+ 	BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
+@@ -141,6 +202,7 @@ static void pgd_dtor(pgd_t *pgd)
+ 	pgd_list_del(pgd);
+ 	spin_unlock(&pgd_lock);
+ }
++#endif
+ 
+ /*
+  * List of all pgd's needed for non-PAE so it can invalidate entries
+@@ -153,7 +215,7 @@ static void pgd_dtor(pgd_t *pgd)
+  * -- nyc
+  */
+ 
+-#ifdef CONFIG_X86_PAE
++#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE)
+ /*
+  * In PAE mode, we need to do a cr3 reload (=tlb flush) when
+  * updating the top-level pagetable entries to guarantee the
+@@ -165,7 +227,7 @@ static void pgd_dtor(pgd_t *pgd)
+  * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate
+  * and initialize the kernel pmds here.
+  */
+-#define PREALLOCATED_PMDS	UNSHARED_PTRS_PER_PGD
++#define PREALLOCATED_PXDS	(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
+ 
+ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
+ {
+@@ -183,43 +245,45 @@ void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd)
+ 	 */
+ 	flush_tlb_mm(mm);
+ }
++#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD)
++#define PREALLOCATED_PXDS	USER_PGD_PTRS
+ #else  /* !CONFIG_X86_PAE */
+ 
+ /* No need to prepopulate any pagetable entries in non-PAE modes. */
+-#define PREALLOCATED_PMDS	0
++#define PREALLOCATED_PXDS	0
+ 
+ #endif	/* CONFIG_X86_PAE */
+ 
+-static void free_pmds(pmd_t *pmds[])
++static void free_pxds(pxd_t *pxds[])
+ {
+ 	int i;
+ 
+-	for(i = 0; i < PREALLOCATED_PMDS; i++)
+-		if (pmds[i]) {
+-			pgtable_pmd_page_dtor(virt_to_page(pmds[i]));
+-			free_page((unsigned long)pmds[i]);
++	for(i = 0; i < PREALLOCATED_PXDS; i++)
++		if (pxds[i]) {
++			pgtable_pxd_page_dtor(virt_to_page(pxds[i]));
++			free_page((unsigned long)pxds[i]);
+ 		}
+ }
+ 
+-static int preallocate_pmds(pmd_t *pmds[])
++static int preallocate_pxds(pxd_t *pxds[])
+ {
+ 	int i;
+ 	bool failed = false;
+ 
+-	for(i = 0; i < PREALLOCATED_PMDS; i++) {
+-		pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
+-		if (!pmd)
++	for(i = 0; i < PREALLOCATED_PXDS; i++) {
++		pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP);
++		if (!pxd)
+ 			failed = true;
+-		if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
+-			free_page((unsigned long)pmd);
+-			pmd = NULL;
++		if (pxd && !pgtable_pxd_page_ctor(virt_to_page(pxd))) {
++			free_page((unsigned long)pxd);
++			pxd = NULL;
+ 			failed = true;
+ 		}
+-		pmds[i] = pmd;
++		pxds[i] = pxd;
+ 	}
+ 
+ 	if (failed) {
+-		free_pmds(pmds);
++		free_pxds(pxds);
+ 		return -ENOMEM;
+ 	}
+ 
+@@ -232,49 +296,52 @@ static int preallocate_pmds(pmd_t *pmds[])
+  * preallocate which never got a corresponding vma will need to be
+  * freed manually.
+  */
+-static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp)
++static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp)
+ {
+ 	int i;
+ 
+-	for(i = 0; i < PREALLOCATED_PMDS; i++) {
++	for(i = 0; i < PREALLOCATED_PXDS; i++) {
+ 		pgd_t pgd = pgdp[i];
+ 
+ 		if (pgd_val(pgd) != 0) {
+-			pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd);
++			pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd);
+ 
+-			pgdp[i] = native_make_pgd(0);
++			set_pgd(pgdp + i, native_make_pgd(0));
+ 
+-			paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT);
+-			pmd_free(mm, pmd);
++			paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT);
++			pxd_free(mm, pxd);
+ 		}
+ 	}
+ }
+ 
+-static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[])
++static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[])
+ {
+-	pud_t *pud;
++	pyd_t *pyd;
+ 	int i;
+ 
+-	if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */
++	if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */
+ 		return;
+ 
+-	pud = pud_offset(pgd, 0);
+-
+-	for (i = 0; i < PREALLOCATED_PMDS; i++, pud++) {
+-		pmd_t *pmd = pmds[i];
++#ifdef CONFIG_X86_64
++	pyd = pyd_offset(mm, 0L);
++#else
++	pyd = pyd_offset(pgd, 0L);
++#endif
+ 
++	for (i = 0; i < PREALLOCATED_PXDS; i++, pyd++) {
++		pxd_t *pxd = pxds[i];
+ 		if (i >= KERNEL_PGD_BOUNDARY)
+-			memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
+-			       sizeof(pmd_t) * PTRS_PER_PMD);
++			memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]),
++			       sizeof(pxd_t) * PTRS_PER_PMD);
+ 
+-		pud_populate(mm, pud, pmd);
++		pyd_populate(mm, pyd, pxd);
+ 	}
+ }
+ 
+ pgd_t *pgd_alloc(struct mm_struct *mm)
+ {
+ 	pgd_t *pgd;
+-	pmd_t *pmds[PREALLOCATED_PMDS];
++	pxd_t *pxds[PREALLOCATED_PXDS];
+ 
+ 	pgd = (pgd_t *)__get_free_page(PGALLOC_GFP);
+ 
+@@ -283,11 +350,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
+ 
+ 	mm->pgd = pgd;
+ 
+-	if (preallocate_pmds(pmds) != 0)
++	if (preallocate_pxds(pxds) != 0)
+ 		goto out_free_pgd;
+ 
+ 	if (paravirt_pgd_alloc(mm) != 0)
+-		goto out_free_pmds;
++		goto out_free_pxds;
+ 
+ 	/*
+ 	 * Make sure that pre-populating the pmds is atomic with
+@@ -297,14 +364,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
+ 	spin_lock(&pgd_lock);
+ 
+ 	pgd_ctor(mm, pgd);
+-	pgd_prepopulate_pmd(mm, pgd, pmds);
++	pgd_prepopulate_pxd(mm, pgd, pxds);
+ 
+ 	spin_unlock(&pgd_lock);
+ 
+ 	return pgd;
+ 
+-out_free_pmds:
+-	free_pmds(pmds);
++out_free_pxds:
++	free_pxds(pxds);
+ out_free_pgd:
+ 	free_page((unsigned long)pgd);
+ out:
+@@ -313,7 +380,7 @@ out:
+ 
+ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+ {
+-	pgd_mop_up_pmds(mm, pgd);
++	pgd_mop_up_pxds(mm, pgd);
+ 	pgd_dtor(pgd);
+ 	paravirt_pgd_free(mm, pgd);
+ 	free_page((unsigned long)pgd);
+diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
+index a69bcb8..19068ab 100644
+--- a/arch/x86/mm/pgtable_32.c
++++ b/arch/x86/mm/pgtable_32.c
+@@ -47,10 +47,13 @@ void set_pte_vaddr(unsigned long vaddr, pte_t pteval)
+ 		return;
+ 	}
+ 	pte = pte_offset_kernel(pmd, vaddr);
++
++	pax_open_kernel();
+ 	if (pte_val(pteval))
+ 		set_pte_at(&init_mm, vaddr, pte, pteval);
+ 	else
+ 		pte_clear(&init_mm, vaddr, pte);
++	pax_close_kernel();
+ 
+ 	/*
+ 	 * It's enough to flush this one mapping.
+diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
+index e666cbb..61788c45 100644
+--- a/arch/x86/mm/physaddr.c
++++ b/arch/x86/mm/physaddr.c
+@@ -10,7 +10,7 @@
+ #ifdef CONFIG_X86_64
+ 
+ #ifdef CONFIG_DEBUG_VIRTUAL
+-unsigned long __phys_addr(unsigned long x)
++unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
+ {
+ 	unsigned long y = x - __START_KERNEL_map;
+ 
+@@ -67,7 +67,7 @@ EXPORT_SYMBOL(__virt_addr_valid);
+ #else
+ 
+ #ifdef CONFIG_DEBUG_VIRTUAL
+-unsigned long __phys_addr(unsigned long x)
++unsigned long __intentional_overflow(-1) __phys_addr(unsigned long x)
+ {
+ 	unsigned long phys_addr = x - PAGE_OFFSET;
+ 	/* VMALLOC_* aren't constants  */
+diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
+index 90555bf..f5f1828 100644
+--- a/arch/x86/mm/setup_nx.c
++++ b/arch/x86/mm/setup_nx.c
+@@ -5,8 +5,10 @@
+ #include <asm/pgtable.h>
+ #include <asm/proto.h>
+ 
++#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+ static int disable_nx;
+ 
++#ifndef CONFIG_PAX_PAGEEXEC
+ /*
+  * noexec = on|off
+  *
+@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str)
+ 	return 0;
+ }
+ early_param("noexec", noexec_setup);
++#endif
++
++#endif
+ 
+ void x86_configure_nx(void)
+ {
++#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+ 	if (cpu_has_nx && !disable_nx)
+ 		__supported_pte_mask |= _PAGE_NX;
+ 	else
++#endif
+ 		__supported_pte_mask &= ~_PAGE_NX;
+ }
+ 
+diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
+index dd8dda1..9e9b0f6 100644
+--- a/arch/x86/mm/tlb.c
++++ b/arch/x86/mm/tlb.c
+@@ -48,7 +48,11 @@ void leave_mm(int cpu)
+ 		BUG();
+ 	if (cpumask_test_cpu(cpu, mm_cpumask(active_mm))) {
+ 		cpumask_clear_cpu(cpu, mm_cpumask(active_mm));
++
++#ifndef CONFIG_PAX_PER_CPU_PGD
+ 		load_cr3(swapper_pg_dir);
++#endif
++
+ 	}
+ }
+ EXPORT_SYMBOL_GPL(leave_mm);
+diff --git a/arch/x86/mm/uderef_64.c b/arch/x86/mm/uderef_64.c
+new file mode 100644
+index 0000000..dace51c
+--- /dev/null
++++ b/arch/x86/mm/uderef_64.c
+@@ -0,0 +1,37 @@
++#include <linux/mm.h>
++#include <asm/pgtable.h>
++#include <asm/uaccess.h>
++
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++/* PaX: due to the special call convention these functions must
++ * - remain leaf functions under all configurations,
++ * - never be called directly, only dereferenced from the wrappers.
++ */
++void __pax_open_userland(void)
++{
++	unsigned int cpu;
++
++	if (unlikely(!segment_eq(get_fs(), USER_DS)))
++		return;
++
++	cpu = raw_get_cpu();
++	BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_KERNEL);
++	write_cr3(__pa(get_cpu_pgd(cpu, user)) | PCID_USER | PCID_NOFLUSH);
++	raw_put_cpu_no_resched();
++}
++EXPORT_SYMBOL(__pax_open_userland);
++
++void __pax_close_userland(void)
++{
++	unsigned int cpu;
++
++	if (unlikely(!segment_eq(get_fs(), USER_DS)))
++		return;
++
++	cpu = raw_get_cpu();
++	BUG_ON((read_cr3() & ~PAGE_MASK) != PCID_USER);
++	write_cr3(__pa(get_cpu_pgd(cpu, kernel)) | PCID_KERNEL | PCID_NOFLUSH);
++	raw_put_cpu_no_resched();
++}
++EXPORT_SYMBOL(__pax_close_userland);
++#endif
+diff --git a/arch/x86/net/bpf_jit.S b/arch/x86/net/bpf_jit.S
+index 0149575..f746de8 100644
+--- a/arch/x86/net/bpf_jit.S
++++ b/arch/x86/net/bpf_jit.S
+@@ -9,6 +9,7 @@
+  */
+ #include <linux/linkage.h>
+ #include <asm/dwarf2.h>
++#include <asm/alternative-asm.h>
+ 
+ /*
+  * Calling convention :
+@@ -35,6 +36,7 @@ sk_load_word_positive_offset:
+ 	jle	bpf_slow_path_word
+ 	mov     (SKBDATA,%rsi),%eax
+ 	bswap   %eax  			/* ntohl() */
++	pax_force_retaddr
+ 	ret
+ 
+ sk_load_half:
+@@ -52,6 +54,7 @@ sk_load_half_positive_offset:
+ 	jle	bpf_slow_path_half
+ 	movzwl	(SKBDATA,%rsi),%eax
+ 	rol	$8,%ax			# ntohs()
++	pax_force_retaddr
+ 	ret
+ 
+ sk_load_byte:
+@@ -66,6 +69,7 @@ sk_load_byte_positive_offset:
+ 	cmp	%esi,%r9d   /* if (offset >= hlen) goto bpf_slow_path_byte */
+ 	jle	bpf_slow_path_byte
+ 	movzbl	(SKBDATA,%rsi),%eax
++	pax_force_retaddr
+ 	ret
+ 
+ /**
+@@ -87,6 +91,7 @@ sk_load_byte_msh_positive_offset:
+ 	movzbl	(SKBDATA,%rsi),%ebx
+ 	and	$15,%bl
+ 	shl	$2,%bl
++	pax_force_retaddr
+ 	ret
+ 
+ /* rsi contains offset and can be scratched */
+@@ -109,6 +114,7 @@ bpf_slow_path_word:
+ 	js	bpf_error
+ 	mov	-12(%rbp),%eax
+ 	bswap	%eax
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_slow_path_half:
+@@ -117,12 +123,14 @@ bpf_slow_path_half:
+ 	mov	-12(%rbp),%ax
+ 	rol	$8,%ax
+ 	movzwl	%ax,%eax
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_slow_path_byte:
+ 	bpf_slow_path_common(1)
+ 	js	bpf_error
+ 	movzbl	-12(%rbp),%eax
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_slow_path_byte_msh:
+@@ -133,6 +141,7 @@ bpf_slow_path_byte_msh:
+ 	and	$15,%al
+ 	shl	$2,%al
+ 	xchg	%eax,%ebx
++	pax_force_retaddr
+ 	ret
+ 
+ #define sk_negative_common(SIZE)				\
+@@ -157,6 +166,7 @@ sk_load_word_negative_offset:
+ 	sk_negative_common(4)
+ 	mov	(%rax), %eax
+ 	bswap	%eax
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_slow_path_half_neg:
+@@ -168,6 +178,7 @@ sk_load_half_negative_offset:
+ 	mov	(%rax),%ax
+ 	rol	$8,%ax
+ 	movzwl	%ax,%eax
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_slow_path_byte_neg:
+@@ -177,6 +188,7 @@ sk_load_byte_negative_offset:
+ 	.globl	sk_load_byte_negative_offset
+ 	sk_negative_common(1)
+ 	movzbl	(%rax), %eax
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_slow_path_byte_msh_neg:
+@@ -190,6 +202,7 @@ sk_load_byte_msh_negative_offset:
+ 	and	$15,%al
+ 	shl	$2,%al
+ 	xchg	%eax,%ebx
++	pax_force_retaddr
+ 	ret
+ 
+ bpf_error:
+@@ -197,4 +210,5 @@ bpf_error:
+ 	xor		%eax,%eax
+ 	mov		-8(%rbp),%rbx
+ 	leaveq
++	pax_force_retaddr
+ 	ret
+diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
+index 1fed139..842a14e 100644
+--- a/arch/x86/net/bpf_jit_comp.c
++++ b/arch/x86/net/bpf_jit_comp.c
+@@ -50,13 +50,102 @@ static inline u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len)
+ 	return ptr + len;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++#define MAX_INSTR_CODE_SIZE 96
++#else
++#define MAX_INSTR_CODE_SIZE 64
++#endif
++
+ #define EMIT(bytes, len)	do { prog = emit_code(prog, bytes, len); } while (0)
+ 
+ #define EMIT1(b1)		EMIT(b1, 1)
+ #define EMIT2(b1, b2)		EMIT((b1) + ((b2) << 8), 2)
+ #define EMIT3(b1, b2, b3)	EMIT((b1) + ((b2) << 8) + ((b3) << 16), 3)
+ #define EMIT4(b1, b2, b3, b4)   EMIT((b1) + ((b2) << 8) + ((b3) << 16) + ((b4) << 24), 4)
++
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++/* original constant will appear in ecx */
++#define DILUTE_CONST_SEQUENCE(_off, _key) 	\
++do {						\
++	/* mov ecx, randkey */			\
++	EMIT1(0xb9);				\
++	EMIT(_key, 4);				\
++	/* xor ecx, randkey ^ off */		\
++	EMIT2(0x81, 0xf1);			\
++	EMIT((_key) ^ (_off), 4);		\
++} while (0)
++#define SHORT_JMP_LENGTH 2
++#define NEAR_JMP_LENGTH (5 + 8)
++#define EMIT1_off32(b1, _off)								\
++do { 											\
++	switch (b1) {									\
++		case 0x05: /* add eax, imm32 */						\
++		case 0x2d: /* sub eax, imm32 */						\
++		case 0x25: /* and eax, imm32 */						\
++		case 0x0d: /* or eax, imm32 */						\
++		case 0x35: /* xor eax, imm32 */						\
++		case 0x3d: /* cmp eax, imm32 */						\
++			DILUTE_CONST_SEQUENCE(_off, randkey);				\
++			EMIT2((b1) - 4, 0xc8); /* convert imm instruction to eax, ecx */\
++			break;								\
++		case 0xb8: /* mov eax, imm32 */						\
++			DILUTE_CONST_SEQUENCE(_off, randkey);				\
++			/* mov eax, ecx */						\
++			EMIT2(0x89, 0xc8);						\
++			break;								\
++		case 0xa9: /* test eax, imm32 */					\
++			DILUTE_CONST_SEQUENCE(_off, randkey);				\
++			/* test eax, ecx */						\
++			EMIT2(0x85, 0xc8);						\
++			break;								\
++		case 0xbb: /* mov ebx, imm32 */						\
++			DILUTE_CONST_SEQUENCE(_off, randkey);				\
++			/* mov ebx, ecx */						\
++			EMIT2(0x89, 0xcb);						\
++			break;								\
++		case 0xbe: /* mov esi, imm32 */						\
++			DILUTE_CONST_SEQUENCE(_off, randkey);				\
++			/* mov esi, ecx	*/						\
++			EMIT2(0x89, 0xce);						\
++			break;								\
++		case 0xe8: /* call rel imm32, always to known funcs */			\
++			EMIT1(b1);							\
++			EMIT(_off, 4);							\
++			break;								\
++		case 0xe9: /* jmp rel imm32 */						\
++			BUG_ON((int)(_off) < 0);					\
++			EMIT1(b1);							\
++			EMIT(_off + 8, 4);						\
++			/* prevent fall-through, we're not called if off = 0 */		\
++			EMIT(0xcccccccc, 4);						\
++			EMIT(0xcccccccc, 4);						\
++			break;								\
++		default:								\
++			BUILD_BUG();							\
++	}										\
++} while (0)
++
++#define EMIT2_off32(b1, b2, _off) 					\
++do { 									\
++	if ((b1) == 0x8d && (b2) == 0xb3) { /* lea esi, [rbx+imm32] */	\
++		EMIT2(0x8d, 0xb3); /* lea esi, [rbx+randkey] */		\
++		EMIT(randkey, 4);					\
++		EMIT2(0x8d, 0xb6); /* lea esi, [esi+off-randkey] */	\
++		EMIT((_off) - randkey, 4);				\
++	} else if ((b1) == 0x69 && (b2) == 0xc0) { /* imul eax, imm32 */\
++		DILUTE_CONST_SEQUENCE(_off, randkey);			\
++		/* imul eax, ecx */					\
++		EMIT3(0x0f, 0xaf, 0xc1);				\
++	} else {							\
++		BUILD_BUG();						\
++	}								\
++} while (0)
++#else
+ #define EMIT1_off32(b1, off)	do { EMIT1(b1); EMIT(off, 4);} while (0)
++#define EMIT2_off32(b1, b2, off) do { EMIT2(b1, b2); EMIT(off, 4);} while (0)
++#define SHORT_JMP_LENGTH 2
++#define NEAR_JMP_LENGTH 5
++#endif
+ 
+ #define CLEAR_A() EMIT2(0x31, 0xc0) /* xor %eax,%eax */
+ #define CLEAR_X() EMIT2(0x31, 0xdb) /* xor %ebx,%ebx */
+@@ -73,6 +162,7 @@ static inline bool is_near(int offset)
+ 
+ #define EMIT_JMP(offset)						\
+ do {									\
++        BUG_ON((int)(offset) < 0);					\
+ 	if (offset) {							\
+ 		if (is_near(offset))					\
+ 			EMIT2(0xeb, offset); /* jmp .+off8 */		\
+@@ -91,13 +181,33 @@ do {									\
+ #define X86_JBE 0x76
+ #define X86_JA  0x77
+ 
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++#define APPEND_FLOW_VERIFY()	\
++do {				\
++	/* mov ecx, randkey */	\
++	EMIT1(0xb9);		\
++	EMIT(randkey, 4);	\
++	/* cmp ecx, randkey */	\
++	EMIT2(0x81, 0xf9);	\
++	EMIT(randkey, 4);	\
++	/* jz after 8 int 3s */ \
++	EMIT2(0x74, 0x08);	\
++	EMIT(0xcccccccc, 4);	\
++	EMIT(0xcccccccc, 4);	\
++} while (0)
++#else
++#define APPEND_FLOW_VERIFY() do { } while (0)
++#endif
++
+ #define EMIT_COND_JMP(op, offset)				\
+ do {								\
++        BUG_ON((int)(offset) < 0);				\
+ 	if (is_near(offset))					\
+ 		EMIT2(op, offset); /* jxx .+off8 */		\
+ 	else {							\
+ 		EMIT2(0x0f, op + 0x10);				\
+-		EMIT(offset, 4); /* jxx .+off32 */		\
++		EMIT((offset) + 21, 4); /* jxx .+off32 */		\
++		APPEND_FLOW_VERIFY();				\
+ 	}							\
+ } while (0)
+ 
+@@ -145,55 +255,54 @@ static int pkt_type_offset(void)
+ 	return -1;
+ }
+ 
+-struct bpf_binary_header {
+-	unsigned int	pages;
+-	/* Note : for security reasons, bpf code will follow a randomly
+-	 * sized amount of int3 instructions
+-	 */
+-	u8		image[];
+-};
+-
+-static struct bpf_binary_header *bpf_alloc_binary(unsigned int proglen,
++/* Note : for security reasons, bpf code will follow a randomly
++ * sized amount of int3 instructions
++ */
++static u8 *bpf_alloc_binary(unsigned int proglen,
+ 						  u8 **image_ptr)
+ {
+ 	unsigned int sz, hole;
+-	struct bpf_binary_header *header;
++	u8 *header;
+ 
+ 	/* Most of BPF filters are really small,
+ 	 * but if some of them fill a page, allow at least
+ 	 * 128 extra bytes to insert a random section of int3
+ 	 */
+-	sz = round_up(proglen + sizeof(*header) + 128, PAGE_SIZE);
+-	header = module_alloc(sz);
++	sz = round_up(proglen + 128, PAGE_SIZE);
++	header = module_alloc_exec(sz);
+ 	if (!header)
+ 		return NULL;
+ 
++	pax_open_kernel();
+ 	memset(header, 0xcc, sz); /* fill whole space with int3 instructions */
++	pax_close_kernel();
+ 
+-	header->pages = sz / PAGE_SIZE;
+-	hole = min(sz - (proglen + sizeof(*header)), PAGE_SIZE - sizeof(*header));
++	hole = PAGE_SIZE - (proglen & ~PAGE_MASK);
+ 
+ 	/* insert a random number of int3 instructions before BPF code */
+-	*image_ptr = &header->image[prandom_u32() % hole];
++	*image_ptr = &header[prandom_u32() % hole];
+ 	return header;
+ }
+ 
+ void bpf_jit_compile(struct sk_filter *fp)
+ {
+-	u8 temp[64];
++	u8 temp[MAX_INSTR_CODE_SIZE];
+ 	u8 *prog;
+ 	unsigned int proglen, oldproglen = 0;
+ 	int ilen, i;
+ 	int t_offset, f_offset;
+ 	u8 t_op, f_op, seen = 0, pass;
+ 	u8 *image = NULL;
+-	struct bpf_binary_header *header = NULL;
++	u8 *header = NULL;
+ 	u8 *func;
+ 	int pc_ret0 = -1; /* bpf index of first RET #0 instruction (if any) */
+ 	unsigned int cleanup_addr; /* epilogue code offset */
+ 	unsigned int *addrs;
+ 	const struct sock_filter *filter = fp->insns;
+ 	int flen = fp->len;
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++	unsigned int randkey;
++#endif
+ 
+ 	if (!bpf_jit_enable)
+ 		return;
+@@ -203,10 +312,10 @@ void bpf_jit_compile(struct sk_filter *fp)
+ 		return;
+ 
+ 	/* Before first pass, make a rough estimation of addrs[]
+-	 * each bpf instruction is translated to less than 64 bytes
++	 * each bpf instruction is translated to less than MAX_INSTR_CODE_SIZE bytes
+ 	 */
+ 	for (proglen = 0, i = 0; i < flen; i++) {
+-		proglen += 64;
++		proglen += MAX_INSTR_CODE_SIZE;
+ 		addrs[i] = proglen;
+ 	}
+ 	cleanup_addr = proglen; /* epilogue address */
+@@ -290,6 +399,10 @@ void bpf_jit_compile(struct sk_filter *fp)
+ 		for (i = 0; i < flen; i++) {
+ 			unsigned int K = filter[i].k;
+ 
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++			randkey = prandom_u32();
++#endif
++
+ 			switch (filter[i].code) {
+ 			case BPF_S_ALU_ADD_X: /* A += X; */
+ 				seen |= SEEN_XREG;
+@@ -322,10 +435,8 @@ void bpf_jit_compile(struct sk_filter *fp)
+ 			case BPF_S_ALU_MUL_K: /* A *= K */
+ 				if (is_imm8(K))
+ 					EMIT3(0x6b, 0xc0, K); /* imul imm8,%eax,%eax */
+-				else {
+-					EMIT2(0x69, 0xc0);		/* imul imm32,%eax */
+-					EMIT(K, 4);
+-				}
++				else
++					EMIT2_off32(0x69, 0xc0, K); /* imul imm32,%eax */
+ 				break;
+ 			case BPF_S_ALU_DIV_X: /* A /= X; */
+ 				seen |= SEEN_XREG;
+@@ -338,7 +449,7 @@ void bpf_jit_compile(struct sk_filter *fp)
+ 					EMIT_COND_JMP(X86_JE, addrs[pc_ret0 - 1] -
+ 								(addrs[i] - 4));
+ 				} else {
+-					EMIT_COND_JMP(X86_JNE, 2 + 5);
++					EMIT_COND_JMP(X86_JNE, 2 + NEAR_JMP_LENGTH);
+ 					CLEAR_A();
+ 					EMIT1_off32(0xe9, cleanup_addr - (addrs[i] - 4)); /* jmp .+off32 */
+ 				}
+@@ -369,7 +480,11 @@ void bpf_jit_compile(struct sk_filter *fp)
+ 					break;
+ 				}
+ 				EMIT2(0x31, 0xd2);	/* xor %edx,%edx */
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++				DILUTE_CONST_SEQUENCE(K, randkey);
++#else
+ 				EMIT1(0xb9);EMIT(K, 4);	/* mov imm32,%ecx */
++#endif
+ 				EMIT2(0xf7, 0xf1);	/* div %ecx */
+ 				EMIT2(0x89, 0xd0);	/* mov %edx,%eax */
+ 				break;
+@@ -377,7 +492,11 @@ void bpf_jit_compile(struct sk_filter *fp)
+ 				if (K == 1)
+ 					break;
+ 				EMIT2(0x31, 0xd2);	/* xor %edx,%edx */
++#ifdef CONFIG_GRKERNSEC_JIT_HARDEN
++				DILUTE_CONST_SEQUENCE(K, randkey);
++#else
+ 				EMIT1(0xb9);EMIT(K, 4);	/* mov imm32,%ecx */
++#endif
+ 				EMIT2(0xf7, 0xf1);	/* div %ecx */
+ 				break;
+ 			case BPF_S_ALU_AND_X:
+@@ -648,8 +767,7 @@ common_load_ind:		seen |= SEEN_DATAREF | SEEN_XREG;
+ 					if (is_imm8(K)) {
+ 						EMIT3(0x8d, 0x73, K); /* lea imm8(%rbx), %esi */
+ 					} else {
+-						EMIT2(0x8d, 0xb3); /* lea imm32(%rbx),%esi */
+-						EMIT(K, 4);
++						EMIT2_off32(0x8d, 0xb3, K); /* lea imm32(%rbx),%esi */
+ 					}
+ 				} else {
+ 					EMIT2(0x89,0xde); /* mov %ebx,%esi */
+@@ -722,7 +840,7 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
+ 				}
+ 				if (filter[i].jt != 0) {
+ 					if (filter[i].jf && f_offset)
+-						t_offset += is_near(f_offset) ? 2 : 5;
++						t_offset += is_near(f_offset) ? SHORT_JMP_LENGTH : NEAR_JMP_LENGTH;
+ 					EMIT_COND_JMP(t_op, t_offset);
+ 					if (filter[i].jf)
+ 						EMIT_JMP(f_offset);
+@@ -739,10 +857,12 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
+ 				if (unlikely(proglen + ilen > oldproglen)) {
+ 					pr_err("bpb_jit_compile fatal error\n");
+ 					kfree(addrs);
+-					module_free(NULL, header);
++					module_free_exec(NULL, image);
+ 					return;
+ 				}
++				pax_open_kernel();
+ 				memcpy(image + proglen, temp, ilen);
++				pax_close_kernel();
+ 			}
+ 			proglen += ilen;
+ 			addrs[i] = proglen;
+@@ -775,7 +895,6 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
+ 
+ 	if (image) {
+ 		bpf_flush_icache(header, image + proglen);
+-		set_memory_ro((unsigned long)header, header->pages);
+ 		fp->bpf_func = (void *)image;
+ 	}
+ out:
+@@ -787,10 +906,8 @@ static void bpf_jit_free_deferred(struct work_struct *work)
+ {
+ 	struct sk_filter *fp = container_of(work, struct sk_filter, work);
+ 	unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
+-	struct bpf_binary_header *header = (void *)addr;
+ 
+-	set_memory_rw(addr, header->pages);
+-	module_free(NULL, header);
++	module_free_exec(NULL, (void *)addr);
+ 	kfree(fp);
+ }
+ 
+diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
+index 5d04be5..2beeaa2 100644
+--- a/arch/x86/oprofile/backtrace.c
++++ b/arch/x86/oprofile/backtrace.c
+@@ -46,11 +46,11 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
+ 	struct stack_frame_ia32 *fp;
+ 	unsigned long bytes;
+ 
+-	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
++	bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
+ 	if (bytes != 0)
+ 		return NULL;
+ 
+-	fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
++	fp = (struct stack_frame_ia32 __force_kernel *) compat_ptr(bufhead[0].next_frame);
+ 
+ 	oprofile_add_trace(bufhead[0].return_address);
+ 
+@@ -92,7 +92,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
+ 	struct stack_frame bufhead[2];
+ 	unsigned long bytes;
+ 
+-	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
++	bytes = copy_from_user_nmi(bufhead, (const char __force_user *)head, sizeof(bufhead));
+ 	if (bytes != 0)
+ 		return NULL;
+ 
+@@ -111,7 +111,7 @@ x86_backtrace(struct pt_regs * const regs, unsigned int depth)
+ {
+ 	struct stack_frame *head = (struct stack_frame *)frame_pointer(regs);
+ 
+-	if (!user_mode_vm(regs)) {
++	if (!user_mode(regs)) {
+ 		unsigned long stack = kernel_stack_pointer(regs);
+ 		if (depth)
+ 			dump_trace(NULL, regs, (unsigned long *)stack, 0,
+diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
+index 6890d84..1dad1f1 100644
+--- a/arch/x86/oprofile/nmi_int.c
++++ b/arch/x86/oprofile/nmi_int.c
+@@ -23,6 +23,7 @@
+ #include <asm/nmi.h>
+ #include <asm/msr.h>
+ #include <asm/apic.h>
++#include <asm/pgtable.h>
+ 
+ #include "op_counter.h"
+ #include "op_x86_model.h"
+@@ -774,8 +775,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
+ 	if (ret)
+ 		return ret;
+ 
+-	if (!model->num_virt_counters)
+-		model->num_virt_counters = model->num_counters;
++	if (!model->num_virt_counters) {
++		pax_open_kernel();
++		*(unsigned int *)&model->num_virt_counters = model->num_counters;
++		pax_close_kernel();
++	}
+ 
+ 	mux_init(ops);
+ 
+diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
+index 50d86c0..7985318 100644
+--- a/arch/x86/oprofile/op_model_amd.c
++++ b/arch/x86/oprofile/op_model_amd.c
+@@ -519,9 +519,11 @@ static int op_amd_init(struct oprofile_operations *ops)
+ 		num_counters = AMD64_NUM_COUNTERS;
+ 	}
+ 
+-	op_amd_spec.num_counters = num_counters;
+-	op_amd_spec.num_controls = num_counters;
+-	op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
++	pax_open_kernel();
++	*(unsigned int *)&op_amd_spec.num_counters = num_counters;
++	*(unsigned int *)&op_amd_spec.num_controls = num_counters;
++	*(unsigned int *)&op_amd_spec.num_virt_counters = max(num_counters, NUM_VIRT_COUNTERS);
++	pax_close_kernel();
+ 
+ 	return 0;
+ }
+diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
+index d90528e..0127e2b 100644
+--- a/arch/x86/oprofile/op_model_ppro.c
++++ b/arch/x86/oprofile/op_model_ppro.c
+@@ -19,6 +19,7 @@
+ #include <asm/msr.h>
+ #include <asm/apic.h>
+ #include <asm/nmi.h>
++#include <asm/pgtable.h>
+ 
+ #include "op_x86_model.h"
+ #include "op_counter.h"
+@@ -221,8 +222,10 @@ static void arch_perfmon_setup_counters(void)
+ 
+ 	num_counters = min((int)eax.split.num_counters, OP_MAX_COUNTER);
+ 
+-	op_arch_perfmon_spec.num_counters = num_counters;
+-	op_arch_perfmon_spec.num_controls = num_counters;
++	pax_open_kernel();
++	*(unsigned int *)&op_arch_perfmon_spec.num_counters = num_counters;
++	*(unsigned int *)&op_arch_perfmon_spec.num_controls = num_counters;
++	pax_close_kernel();
+ }
+ 
+ static int arch_perfmon_init(struct oprofile_operations *ignore)
+diff --git a/arch/x86/oprofile/op_x86_model.h b/arch/x86/oprofile/op_x86_model.h
+index 71e8a67..6a313bb 100644
+--- a/arch/x86/oprofile/op_x86_model.h
++++ b/arch/x86/oprofile/op_x86_model.h
+@@ -52,7 +52,7 @@ struct op_x86_model_spec {
+ 	void		(*switch_ctrl)(struct op_x86_model_spec const *model,
+ 				       struct op_msrs const * const msrs);
+ #endif
+-};
++} __do_const;
+ 
+ struct op_counter_config;
+ 
+diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
+index 84b9d67..260e5ff 100644
+--- a/arch/x86/pci/intel_mid_pci.c
++++ b/arch/x86/pci/intel_mid_pci.c
+@@ -245,7 +245,7 @@ int __init intel_mid_pci_init(void)
+ 	pr_info("Intel MID platform detected, using MID PCI ops\n");
+ 	pci_mmcfg_late_init();
+ 	pcibios_enable_irq = intel_mid_pci_irq_enable;
+-	pci_root_ops = intel_mid_pci_ops;
++	memcpy((void *)&pci_root_ops, &intel_mid_pci_ops, sizeof pci_root_ops);
+ 	pci_soc_mode = 1;
+ 	/* Continue with standard init */
+ 	return 1;
+diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
+index 372e9b8..e775a6c 100644
+--- a/arch/x86/pci/irq.c
++++ b/arch/x86/pci/irq.c
+@@ -50,7 +50,7 @@ struct irq_router {
+ struct irq_router_handler {
+ 	u16 vendor;
+ 	int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
+-};
++} __do_const;
+ 
+ int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
+ void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
+@@ -794,7 +794,7 @@ static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router
+ 	return 0;
+ }
+ 
+-static __initdata struct irq_router_handler pirq_routers[] = {
++static __initconst const struct irq_router_handler pirq_routers[] = {
+ 	{ PCI_VENDOR_ID_INTEL, intel_router_probe },
+ 	{ PCI_VENDOR_ID_AL, ali_router_probe },
+ 	{ PCI_VENDOR_ID_ITE, ite_router_probe },
+@@ -821,7 +821,7 @@ static struct pci_dev *pirq_router_dev;
+ static void __init pirq_find_router(struct irq_router *r)
+ {
+ 	struct irq_routing_table *rt = pirq_table;
+-	struct irq_router_handler *h;
++	const struct irq_router_handler *h;
+ 
+ #ifdef CONFIG_PCI_BIOS
+ 	if (!rt->signature) {
+@@ -1094,7 +1094,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
++static const struct dmi_system_id __initconst pciirq_dmi_table[] = {
+ 	{
+ 		.callback = fix_broken_hp_bios_irq9,
+ 		.ident = "HP Pavilion N5400 Series Laptop",
+diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
+index c77b24a..c979855 100644
+--- a/arch/x86/pci/pcbios.c
++++ b/arch/x86/pci/pcbios.c
+@@ -79,7 +79,7 @@ union bios32 {
+ static struct {
+ 	unsigned long address;
+ 	unsigned short segment;
+-} bios32_indirect = { 0, __KERNEL_CS };
++} bios32_indirect __read_only = { 0, __PCIBIOS_CS };
+ 
+ /*
+  * Returns the entry point for the given service, NULL on error
+@@ -92,37 +92,80 @@ static unsigned long bios32_service(unsigned long service)
+ 	unsigned long length;		/* %ecx */
+ 	unsigned long entry;		/* %edx */
+ 	unsigned long flags;
++	struct desc_struct d, *gdt;
+ 
+ 	local_irq_save(flags);
+-	__asm__("lcall *(%%edi); cld"
++
++	gdt = get_cpu_gdt_table(smp_processor_id());
++
++	pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC);
++	write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
++	pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC);
++	write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
++
++	__asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld"
+ 		: "=a" (return_code),
+ 		  "=b" (address),
+ 		  "=c" (length),
+ 		  "=d" (entry)
+ 		: "0" (service),
+ 		  "1" (0),
+-		  "D" (&bios32_indirect));
++		  "D" (&bios32_indirect),
++		  "r"(__PCIBIOS_DS)
++		: "memory");
++
++	pax_open_kernel();
++	gdt[GDT_ENTRY_PCIBIOS_CS].a = 0;
++	gdt[GDT_ENTRY_PCIBIOS_CS].b = 0;
++	gdt[GDT_ENTRY_PCIBIOS_DS].a = 0;
++	gdt[GDT_ENTRY_PCIBIOS_DS].b = 0;
++	pax_close_kernel();
++
+ 	local_irq_restore(flags);
+ 
+ 	switch (return_code) {
+-		case 0:
+-			return address + entry;
+-		case 0x80:	/* Not present */
+-			printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
+-			return 0;
+-		default: /* Shouldn't happen */
+-			printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
+-				service, return_code);
++	case 0: {
++		int cpu;
++		unsigned char flags;
++
++		printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry);
++		if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) {
++			printk(KERN_WARNING "bios32_service: not valid\n");
+ 			return 0;
++		}
++		address = address + PAGE_OFFSET;
++		length += 16UL; /* some BIOSs underreport this... */
++		flags = 4;
++		if (length >= 64*1024*1024) {
++			length >>= PAGE_SHIFT;
++			flags |= 8;
++		}
++
++		for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
++			gdt = get_cpu_gdt_table(cpu);
++			pack_descriptor(&d, address, length, 0x9b, flags);
++			write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S);
++			pack_descriptor(&d, address, length, 0x93, flags);
++			write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S);
++		}
++		return entry;
++	}
++	case 0x80:	/* Not present */
++		printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service);
++		return 0;
++	default: /* Shouldn't happen */
++		printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n",
++			service, return_code);
++		return 0;
+ 	}
+ }
+ 
+ static struct {
+ 	unsigned long address;
+ 	unsigned short segment;
+-} pci_indirect = { 0, __KERNEL_CS };
++} pci_indirect __read_only = { 0, __PCIBIOS_CS };
+ 
+-static int pci_bios_present;
++static int pci_bios_present __read_only;
+ 
+ static int check_pcibios(void)
+ {
+@@ -131,11 +174,13 @@ static int check_pcibios(void)
+ 	unsigned long flags, pcibios_entry;
+ 
+ 	if ((pcibios_entry = bios32_service(PCI_SERVICE))) {
+-		pci_indirect.address = pcibios_entry + PAGE_OFFSET;
++		pci_indirect.address = pcibios_entry;
+ 
+ 		local_irq_save(flags);
+-		__asm__(
+-			"lcall *(%%edi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%edi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -144,7 +189,8 @@ static int check_pcibios(void)
+ 			  "=b" (ebx),
+ 			  "=c" (ecx)
+ 			: "1" (PCIBIOS_PCI_BIOS_PRESENT),
+-			  "D" (&pci_indirect)
++			  "D" (&pci_indirect),
++			  "r" (__PCIBIOS_DS)
+ 			: "memory");
+ 		local_irq_restore(flags);
+ 
+@@ -189,7 +235,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
+ 
+ 	switch (len) {
+ 	case 1:
+-		__asm__("lcall *(%%esi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%esi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -198,7 +247,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
+ 			: "1" (PCIBIOS_READ_CONFIG_BYTE),
+ 			  "b" (bx),
+ 			  "D" ((long)reg),
+-			  "S" (&pci_indirect));
++			  "S" (&pci_indirect),
++			  "r" (__PCIBIOS_DS));
+ 		/*
+ 		 * Zero-extend the result beyond 8 bits, do not trust the
+ 		 * BIOS having done it:
+@@ -206,7 +256,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
+ 		*value &= 0xff;
+ 		break;
+ 	case 2:
+-		__asm__("lcall *(%%esi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%esi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -215,7 +268,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
+ 			: "1" (PCIBIOS_READ_CONFIG_WORD),
+ 			  "b" (bx),
+ 			  "D" ((long)reg),
+-			  "S" (&pci_indirect));
++			  "S" (&pci_indirect),
++			  "r" (__PCIBIOS_DS));
+ 		/*
+ 		 * Zero-extend the result beyond 16 bits, do not trust the
+ 		 * BIOS having done it:
+@@ -223,7 +277,10 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
+ 		*value &= 0xffff;
+ 		break;
+ 	case 4:
+-		__asm__("lcall *(%%esi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%esi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -232,7 +289,8 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
+ 			: "1" (PCIBIOS_READ_CONFIG_DWORD),
+ 			  "b" (bx),
+ 			  "D" ((long)reg),
+-			  "S" (&pci_indirect));
++			  "S" (&pci_indirect),
++			  "r" (__PCIBIOS_DS));
+ 		break;
+ 	}
+ 
+@@ -256,7 +314,10 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
+ 
+ 	switch (len) {
+ 	case 1:
+-		__asm__("lcall *(%%esi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%esi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -265,10 +326,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
+ 			  "c" (value),
+ 			  "b" (bx),
+ 			  "D" ((long)reg),
+-			  "S" (&pci_indirect));
++			  "S" (&pci_indirect),
++			  "r" (__PCIBIOS_DS));
+ 		break;
+ 	case 2:
+-		__asm__("lcall *(%%esi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%esi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -277,10 +342,14 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
+ 			  "c" (value),
+ 			  "b" (bx),
+ 			  "D" ((long)reg),
+-			  "S" (&pci_indirect));
++			  "S" (&pci_indirect),
++			  "r" (__PCIBIOS_DS));
+ 		break;
+ 	case 4:
+-		__asm__("lcall *(%%esi); cld\n\t"
++		__asm__("movw %w6, %%ds\n\t"
++			"lcall *%%ss:(%%esi); cld\n\t"
++			"push %%ss\n\t"
++			"pop %%ds\n\t"
+ 			"jc 1f\n\t"
+ 			"xor %%ah, %%ah\n"
+ 			"1:"
+@@ -289,7 +358,8 @@ static int pci_bios_write(unsigned int seg, unsigned int bus,
+ 			  "c" (value),
+ 			  "b" (bx),
+ 			  "D" ((long)reg),
+-			  "S" (&pci_indirect));
++			  "S" (&pci_indirect),
++			  "r" (__PCIBIOS_DS));
+ 		break;
+ 	}
+ 
+@@ -394,10 +464,13 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
+ 
+ 	DBG("PCI: Fetching IRQ routing table... ");
+ 	__asm__("push %%es\n\t"
++		"movw %w8, %%ds\n\t"
+ 		"push %%ds\n\t"
+ 		"pop  %%es\n\t"
+-		"lcall *(%%esi); cld\n\t"
++		"lcall *%%ss:(%%esi); cld\n\t"
+ 		"pop %%es\n\t"
++		"push %%ss\n\t"
++		"pop %%ds\n"
+ 		"jc 1f\n\t"
+ 		"xor %%ah, %%ah\n"
+ 		"1:"
+@@ -408,7 +481,8 @@ struct irq_routing_table * pcibios_get_irq_routing_table(void)
+ 		  "1" (0),
+ 		  "D" ((long) &opt),
+ 		  "S" (&pci_indirect),
+-		  "m" (opt)
++		  "m" (opt),
++		  "r" (__PCIBIOS_DS)
+ 		: "memory");
+ 	DBG("OK  ret=%d, size=%d, map=%x\n", ret, opt.size, map);
+ 	if (ret & 0xff00)
+@@ -432,7 +506,10 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
+ {
+ 	int ret;
+ 
+-	__asm__("lcall *(%%esi); cld\n\t"
++	__asm__("movw %w5, %%ds\n\t"
++		"lcall *%%ss:(%%esi); cld\n\t"
++		"push %%ss\n\t"
++		"pop %%ds\n"
+ 		"jc 1f\n\t"
+ 		"xor %%ah, %%ah\n"
+ 		"1:"
+@@ -440,7 +517,8 @@ int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
+ 		: "0" (PCIBIOS_SET_PCI_HW_INT),
+ 		  "b" ((dev->bus->number << 8) | dev->devfn),
+ 		  "c" ((irq << 8) | (pin + 10)),
+-		  "S" (&pci_indirect));
++		  "S" (&pci_indirect),
++		  "r" (__PCIBIOS_DS));
+ 	return !(ret & 0xff00);
+ }
+ EXPORT_SYMBOL(pcibios_set_irq_routing);
+diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
+index 9ee3491..872192f 100644
+--- a/arch/x86/platform/efi/efi_32.c
++++ b/arch/x86/platform/efi/efi_32.c
+@@ -59,11 +59,22 @@ void efi_call_phys_prelog(void)
+ {
+ 	struct desc_ptr gdt_descr;
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	struct desc_struct d;
++#endif
++
+ 	local_irq_save(efi_rt_eflags);
+ 
+ 	load_cr3(initial_page_table);
+ 	__flush_tlb_all();
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	pack_descriptor(&d, 0, 0xFFFFF, 0x9B, 0xC);
++	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
++	pack_descriptor(&d, 0, 0xFFFFF, 0x93, 0xC);
++	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
++#endif
++
+ 	gdt_descr.address = __pa(get_cpu_gdt_table(0));
+ 	gdt_descr.size = GDT_SIZE - 1;
+ 	load_gdt(&gdt_descr);
+@@ -73,11 +84,24 @@ void efi_call_phys_epilog(void)
+ {
+ 	struct desc_ptr gdt_descr;
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	struct desc_struct d;
++
++	memset(&d, 0, sizeof d);
++	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_CS, &d, DESCTYPE_S);
++	write_gdt_entry(get_cpu_gdt_table(0), GDT_ENTRY_KERNEXEC_EFI_DS, &d, DESCTYPE_S);
++#endif
++
+ 	gdt_descr.address = (unsigned long)get_cpu_gdt_table(0);
+ 	gdt_descr.size = GDT_SIZE - 1;
+ 	load_gdt(&gdt_descr);
+ 
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
++#else
+ 	load_cr3(swapper_pg_dir);
++#endif
++
+ 	__flush_tlb_all();
+ 
+ 	local_irq_restore(efi_rt_eflags);
+diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
+index 666b74a..7c90b04 100644
+--- a/arch/x86/platform/efi/efi_64.c
++++ b/arch/x86/platform/efi/efi_64.c
+@@ -97,6 +97,11 @@ void __init efi_call_phys_prelog(void)
+ 		vaddress = (unsigned long)__va(pgd * PGDIR_SIZE);
+ 		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
+ 	}
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	load_cr3(swapper_pg_dir);
++#endif
++
+ 	__flush_tlb_all();
+ }
+ 
+@@ -114,6 +119,11 @@ void __init efi_call_phys_epilog(void)
+ 	for (pgd = 0; pgd < n_pgds; pgd++)
+ 		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
+ 	kfree(save_pgd);
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	load_cr3(get_cpu_pgd(smp_processor_id(), kernel));
++#endif
++
+ 	__flush_tlb_all();
+ 	local_irq_restore(efi_flags);
+ 	early_code_mapping_set_exec(0);
+@@ -141,8 +151,23 @@ int efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
+ {
+ 	pgd_t *pgd;
+ 
+-	if (efi_enabled(EFI_OLD_MEMMAP))
++	if (efi_enabled(EFI_OLD_MEMMAP)) {
++		/* PaX: We need to disable the NX bit in the PGD, otherwise we won't be
++		 * able to execute the EFI services.
++		 */
++		if (__supported_pte_mask & _PAGE_NX) {
++			unsigned long addr = (unsigned long) __va(0);
++			pgd_t pe = __pgd(pgd_val(*pgd_offset_k(addr)) &  ~_PAGE_NX);
++
++			pr_alert("PAX: Disabling NX protection for low memory map. Try booting without \"efi=old_map\"\n");
++#ifdef CONFIG_PAX_PER_CPU_PGD
++			set_pgd(pgd_offset_cpu(0, kernel, addr), pe);
++#endif
++			set_pgd(pgd_offset_k(addr), pe);
++		}
++
+ 		return 0;
++	}
+ 
+ 	efi_scratch.efi_pgt = (pgd_t *)(unsigned long)real_mode_header->trampoline_pgd;
+ 	pgd = __va(efi_scratch.efi_pgt);
+diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
+index fbe66e6..eae5e38 100644
+--- a/arch/x86/platform/efi/efi_stub_32.S
++++ b/arch/x86/platform/efi/efi_stub_32.S
+@@ -6,7 +6,9 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <linux/init.h>
+ #include <asm/page_types.h>
++#include <asm/segment.h>
+ 
+ /*
+  * efi_call_phys(void *, ...) is a function with variable parameters.
+@@ -20,7 +22,7 @@
+  * service functions will comply with gcc calling convention, too.
+  */
+ 
+-.text
++__INIT
+ ENTRY(efi_call_phys)
+ 	/*
+ 	 * 0. The function can only be called in Linux kernel. So CS has been
+@@ -36,10 +38,24 @@ ENTRY(efi_call_phys)
+ 	 * The mapping of lower virtual memory has been created in prelog and
+ 	 * epilog.
+ 	 */
+-	movl	$1f, %edx
+-	subl	$__PAGE_OFFSET, %edx
+-	jmp	*%edx
++#ifdef CONFIG_PAX_KERNEXEC
++	movl	$(__KERNEXEC_EFI_DS), %edx
++	mov	%edx, %ds
++	mov	%edx, %es
++	mov	%edx, %ss
++	addl	$2f,(1f)
++	ljmp	*(1f)
++
++__INITDATA
++1:	.long __LOAD_PHYSICAL_ADDR, __KERNEXEC_EFI_CS
++.previous
++
++2:
++	subl	$2b,(1b)
++#else
++	jmp	1f-__PAGE_OFFSET
+ 1:
++#endif
+ 
+ 	/*
+ 	 * 2. Now on the top of stack is the return
+@@ -47,14 +63,8 @@ ENTRY(efi_call_phys)
+ 	 * parameter 2, ..., param n. To make things easy, we save the return
+ 	 * address of efi_call_phys in a global variable.
+ 	 */
+-	popl	%edx
+-	movl	%edx, saved_return_addr
+-	/* get the function pointer into ECX*/
+-	popl	%ecx
+-	movl	%ecx, efi_rt_function_ptr
+-	movl	$2f, %edx
+-	subl	$__PAGE_OFFSET, %edx
+-	pushl	%edx
++	popl	(saved_return_addr)
++	popl	(efi_rt_function_ptr)
+ 
+ 	/*
+ 	 * 3. Clear PG bit in %CR0.
+@@ -73,9 +83,8 @@ ENTRY(efi_call_phys)
+ 	/*
+ 	 * 5. Call the physical function.
+ 	 */
+-	jmp	*%ecx
++	call	*(efi_rt_function_ptr-__PAGE_OFFSET)
+ 
+-2:
+ 	/*
+ 	 * 6. After EFI runtime service returns, control will return to
+ 	 * following instruction. We'd better readjust stack pointer first.
+@@ -88,35 +97,36 @@ ENTRY(efi_call_phys)
+ 	movl	%cr0, %edx
+ 	orl	$0x80000000, %edx
+ 	movl	%edx, %cr0
+-	jmp	1f
+-1:
++
+ 	/*
+ 	 * 8. Now restore the virtual mode from flat mode by
+ 	 * adding EIP with PAGE_OFFSET.
+ 	 */
+-	movl	$1f, %edx
+-	jmp	*%edx
++#ifdef CONFIG_PAX_KERNEXEC
++	movl	$(__KERNEL_DS), %edx
++	mov	%edx, %ds
++	mov	%edx, %es
++	mov	%edx, %ss
++	ljmp	$(__KERNEL_CS),$1f
++#else
++	jmp	1f+__PAGE_OFFSET
++#endif
+ 1:
+ 
+ 	/*
+ 	 * 9. Balance the stack. And because EAX contain the return value,
+ 	 * we'd better not clobber it.
+ 	 */
+-	leal	efi_rt_function_ptr, %edx
+-	movl	(%edx), %ecx
+-	pushl	%ecx
++	pushl	(efi_rt_function_ptr)
+ 
+ 	/*
+-	 * 10. Push the saved return address onto the stack and return.
++	 * 10. Return to the saved return address.
+ 	 */
+-	leal	saved_return_addr, %edx
+-	movl	(%edx), %ecx
+-	pushl	%ecx
+-	ret
++	jmpl	*(saved_return_addr)
+ ENDPROC(efi_call_phys)
+ .previous
+ 
+-.data
++__INITDATA
+ saved_return_addr:
+ 	.long 0
+ efi_rt_function_ptr:
+diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
+index 88073b1..1cc2f53 100644
+--- a/arch/x86/platform/efi/efi_stub_64.S
++++ b/arch/x86/platform/efi/efi_stub_64.S
+@@ -7,6 +7,7 @@
+  */
+ 
+ #include <linux/linkage.h>
++#include <asm/alternative-asm.h>
+ 
+ #define SAVE_XMM			\
+ 	mov %rsp, %rax;			\
+@@ -77,6 +78,7 @@ ENTRY(efi_call0)
+ 	RESTORE_PGT
+ 	addq $32, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call0)
+ 
+@@ -89,6 +91,7 @@ ENTRY(efi_call1)
+ 	RESTORE_PGT
+ 	addq $32, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call1)
+ 
+@@ -101,6 +104,7 @@ ENTRY(efi_call2)
+ 	RESTORE_PGT
+ 	addq $32, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call2)
+ 
+@@ -114,6 +118,7 @@ ENTRY(efi_call3)
+ 	RESTORE_PGT
+ 	addq $32, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call3)
+ 
+@@ -128,6 +133,7 @@ ENTRY(efi_call4)
+ 	RESTORE_PGT
+ 	addq $32, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call4)
+ 
+@@ -143,6 +149,7 @@ ENTRY(efi_call5)
+ 	RESTORE_PGT
+ 	addq $48, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call5)
+ 
+@@ -161,6 +168,7 @@ ENTRY(efi_call6)
+ 	RESTORE_PGT
+ 	addq $48, %rsp
+ 	RESTORE_XMM
++	pax_force_retaddr 0, 1
+ 	ret
+ ENDPROC(efi_call6)
+ 
+diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
+index 1bbedc4..eb795b5 100644
+--- a/arch/x86/platform/intel-mid/intel-mid.c
++++ b/arch/x86/platform/intel-mid/intel-mid.c
+@@ -71,9 +71,10 @@ static void intel_mid_power_off(void)
+ {
+ };
+ 
+-static void intel_mid_reboot(void)
++static void __noreturn intel_mid_reboot(void)
+ {
+ 	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
++	BUG();
+ }
+ 
+ static unsigned long __init intel_mid_calibrate_tsc(void)
+diff --git a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
+index 46aa25c..59a68ed 100644
+--- a/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
++++ b/arch/x86/platform/intel-mid/intel_mid_weak_decls.h
+@@ -10,10 +10,9 @@
+  */
+ 
+ 
+-/* __attribute__((weak)) makes these declarations overridable */
+ /* For every CPU addition a new get_<cpuname>_ops interface needs
+  * to be added.
+  */
+-extern void *get_penwell_ops(void) __attribute__((weak));
+-extern void *get_cloverview_ops(void) __attribute__((weak));
+-extern void *get_tangier_ops(void) __attribute__((weak));
++extern const void *get_penwell_ops(void);
++extern const void *get_cloverview_ops(void);
++extern const void *get_tangier_ops(void);
+diff --git a/arch/x86/platform/intel-mid/mfld.c b/arch/x86/platform/intel-mid/mfld.c
+index 23381d2..8ddc10e 100644
+--- a/arch/x86/platform/intel-mid/mfld.c
++++ b/arch/x86/platform/intel-mid/mfld.c
+@@ -64,12 +64,12 @@ static void __init penwell_arch_setup(void)
+ 	pm_power_off = mfld_power_off;
+ }
+ 
+-void *get_penwell_ops(void)
++const void *get_penwell_ops(void)
+ {
+ 	return &penwell_ops;
+ }
+ 
+-void *get_cloverview_ops(void)
++const void *get_cloverview_ops(void)
+ {
+ 	return &penwell_ops;
+ }
+diff --git a/arch/x86/platform/intel-mid/mrfl.c b/arch/x86/platform/intel-mid/mrfl.c
+index aaca917..66eadbc 100644
+--- a/arch/x86/platform/intel-mid/mrfl.c
++++ b/arch/x86/platform/intel-mid/mrfl.c
+@@ -97,7 +97,7 @@ static struct intel_mid_ops tangier_ops = {
+ 	.arch_setup = tangier_arch_setup,
+ };
+ 
+-void *get_tangier_ops(void)
++const void *get_tangier_ops(void)
+ {
+ 	return &tangier_ops;
+ }
+diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
+index d6ee929..3637cb5 100644
+--- a/arch/x86/platform/olpc/olpc_dt.c
++++ b/arch/x86/platform/olpc/olpc_dt.c
+@@ -156,7 +156,7 @@ void * __init prom_early_alloc(unsigned long size)
+ 	return res;
+ }
+ 
+-static struct of_pdt_ops prom_olpc_ops __initdata = {
++static struct of_pdt_ops prom_olpc_ops __initconst = {
+ 	.nextprop = olpc_dt_nextprop,
+ 	.getproplen = olpc_dt_getproplen,
+ 	.getproperty = olpc_dt_getproperty,
+diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
+index 424f4c9..f2a2988 100644
+--- a/arch/x86/power/cpu.c
++++ b/arch/x86/power/cpu.c
+@@ -137,11 +137,8 @@ static void do_fpu_end(void)
+ static void fix_processor_context(void)
+ {
+ 	int cpu = smp_processor_id();
+-	struct tss_struct *t = &per_cpu(init_tss, cpu);
+-#ifdef CONFIG_X86_64
+-	struct desc_struct *desc = get_cpu_gdt_table(cpu);
+-	tss_desc tss;
+-#endif
++	struct tss_struct *t = init_tss + cpu;
++
+ 	set_tss_desc(cpu, t);	/*
+ 				 * This just modifies memory; should not be
+ 				 * necessary. But... This is necessary, because
+@@ -150,10 +147,6 @@ static void fix_processor_context(void)
+ 				 */
+ 
+ #ifdef CONFIG_X86_64
+-	memcpy(&tss, &desc[GDT_ENTRY_TSS], sizeof(tss_desc));
+-	tss.type = 0x9; /* The available 64-bit TSS (see AMD vol 2, pg 91 */
+-	write_gdt_entry(desc, GDT_ENTRY_TSS, &tss, DESC_TSS);
+-
+ 	syscall_init();				/* This sets MSR_*STAR and related */
+ #endif
+ 	load_TR_desc();				/* This does ltr */
+diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
+index bad628a..a102610 100644
+--- a/arch/x86/realmode/init.c
++++ b/arch/x86/realmode/init.c
+@@ -68,7 +68,13 @@ void __init setup_real_mode(void)
+ 		__va(real_mode_header->trampoline_header);
+ 
+ #ifdef CONFIG_X86_32
+-	trampoline_header->start = __pa_symbol(startup_32_smp);
++	trampoline_header->start = __pa_symbol(ktla_ktva(startup_32_smp));
++
++#ifdef CONFIG_PAX_KERNEXEC
++	trampoline_header->start -= LOAD_PHYSICAL_ADDR;
++#endif
++
++	trampoline_header->boot_cs = __BOOT_CS;
+ 	trampoline_header->gdt_limit = __BOOT_DS + 7;
+ 	trampoline_header->gdt_base = __pa_symbol(boot_gdt);
+ #else
+@@ -84,7 +90,7 @@ void __init setup_real_mode(void)
+ 	*trampoline_cr4_features = read_cr4();
+ 
+ 	trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
+-	trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
++	trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd & ~_PAGE_NX;
+ 	trampoline_pgd[511] = init_level4_pgt[511].pgd;
+ #endif
+ }
+diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
+index 3497f14..cc73b92 100644
+--- a/arch/x86/realmode/rm/Makefile
++++ b/arch/x86/realmode/rm/Makefile
+@@ -66,5 +66,8 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE
+ 
+ KBUILD_CFLAGS	:= $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \
+ 		   -I$(srctree)/arch/x86/boot
++ifdef CONSTIFY_PLUGIN
++KBUILD_CFLAGS	+= -fplugin-arg-constify_plugin-no-constify
++endif
+ KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
+ GCOV_PROFILE := n
+diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
+index a28221d..93c40f1 100644
+--- a/arch/x86/realmode/rm/header.S
++++ b/arch/x86/realmode/rm/header.S
+@@ -30,7 +30,9 @@ GLOBAL(real_mode_header)
+ #endif
+ 	/* APM/BIOS reboot */
+ 	.long	pa_machine_real_restart_asm
+-#ifdef CONFIG_X86_64
++#ifdef CONFIG_X86_32
++	.long	__KERNEL_CS
++#else
+ 	.long	__KERNEL32_CS
+ #endif
+ END(real_mode_header)
+diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
+index d66c607..3def845 100644
+--- a/arch/x86/realmode/rm/reboot.S
++++ b/arch/x86/realmode/rm/reboot.S
+@@ -27,6 +27,10 @@ ENTRY(machine_real_restart_asm)
+ 	lgdtl	pa_tr_gdt
+ 
+ 	/* Disable paging to drop us out of long mode */
++	movl	%cr4, %eax
++	andl	$~X86_CR4_PCIDE, %eax
++	movl	%eax, %cr4
++
+ 	movl	%cr0, %eax
+ 	andl	$~X86_CR0_PG, %eax
+ 	movl	%eax, %cr0
+diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
+index 48ddd76..c26749f 100644
+--- a/arch/x86/realmode/rm/trampoline_32.S
++++ b/arch/x86/realmode/rm/trampoline_32.S
+@@ -24,6 +24,12 @@
+ #include <asm/page_types.h>
+ #include "realmode.h"
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++#define ta(X) (X)
++#else
++#define ta(X) (pa_ ## X)
++#endif
++
+ 	.text
+ 	.code16
+ 
+@@ -38,8 +44,6 @@ ENTRY(trampoline_start)
+ 
+ 	cli			# We should be safe anyway
+ 
+-	movl	tr_start, %eax	# where we need to go
+-
+ 	movl	$0xA5A5A5A5, trampoline_status
+ 				# write marker for master knows we're running
+ 
+@@ -55,7 +59,7 @@ ENTRY(trampoline_start)
+ 	movw	$1, %dx			# protected mode (PE) bit
+ 	lmsw	%dx			# into protected mode
+ 
+-	ljmpl	$__BOOT_CS, $pa_startup_32
++	ljmpl *(trampoline_header)
+ 
+ 	.section ".text32","ax"
+ 	.code32
+@@ -66,7 +70,7 @@ ENTRY(startup_32)			# note: also used from wakeup_asm.S
+ 	.balign 8
+ GLOBAL(trampoline_header)
+ 	tr_start:		.space	4
+-	tr_gdt_pad:		.space	2
++	tr_boot_cs:		.space	2
+ 	tr_gdt:			.space	6
+ END(trampoline_header)
+ 	
+diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
+index dac7b20..72dbaca 100644
+--- a/arch/x86/realmode/rm/trampoline_64.S
++++ b/arch/x86/realmode/rm/trampoline_64.S
+@@ -93,6 +93,7 @@ ENTRY(startup_32)
+ 	movl	%edx, %gs
+ 
+ 	movl	pa_tr_cr4, %eax
++	andl	$~X86_CR4_PCIDE, %eax
+ 	movl	%eax, %cr4		# Enable PAE mode
+ 
+ 	# Setup trampoline 4 level pagetables
+@@ -106,7 +107,7 @@ ENTRY(startup_32)
+ 	wrmsr
+ 
+ 	# Enable paging and in turn activate Long Mode
+-	movl	$(X86_CR0_PG | X86_CR0_WP | X86_CR0_PE), %eax
++	movl	$(X86_CR0_PG | X86_CR0_PE), %eax
+ 	movl	%eax, %cr0
+ 
+ 	/*
+diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
+index 9e7e147..25a4158 100644
+--- a/arch/x86/realmode/rm/wakeup_asm.S
++++ b/arch/x86/realmode/rm/wakeup_asm.S
+@@ -126,11 +126,10 @@ ENTRY(wakeup_start)
+ 	lgdtl	pmode_gdt
+ 
+ 	/* This really couldn't... */
+-	movl	pmode_entry, %eax
+ 	movl	pmode_cr0, %ecx
+ 	movl	%ecx, %cr0
+-	ljmpl	$__KERNEL_CS, $pa_startup_32
+-	/* -> jmp *%eax in trampoline_32.S */
++
++	ljmpl	*pmode_entry
+ #else
+ 	jmp	trampoline_start
+ #endif
+diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
+index e812034..c747134 100644
+--- a/arch/x86/tools/Makefile
++++ b/arch/x86/tools/Makefile
+@@ -37,7 +37,7 @@ $(obj)/test_get_len.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/in
+ 
+ $(obj)/insn_sanity.o: $(srctree)/arch/x86/lib/insn.c $(srctree)/arch/x86/lib/inat.c $(srctree)/arch/x86/include/asm/inat_types.h $(srctree)/arch/x86/include/asm/inat.h $(srctree)/arch/x86/include/asm/insn.h $(objtree)/arch/x86/lib/inat-tables.c
+ 
+-HOST_EXTRACFLAGS += -I$(srctree)/tools/include
++HOST_EXTRACFLAGS += -I$(srctree)/tools/include -ggdb
+ hostprogs-y	+= relocs
+ relocs-objs     := relocs_32.o relocs_64.o relocs_common.o
+ relocs: $(obj)/relocs
+diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
+index cfbdbdb..1aa763c 100644
+--- a/arch/x86/tools/relocs.c
++++ b/arch/x86/tools/relocs.c
+@@ -1,5 +1,7 @@
+ /* This is included from relocs_32/64.c */
+ 
++#include "../../../include/generated/autoconf.h"
++
+ #define ElfW(type)		_ElfW(ELF_BITS, type)
+ #define _ElfW(bits, type)	__ElfW(bits, type)
+ #define __ElfW(bits, type)	Elf##bits##_##type
+@@ -11,6 +13,7 @@
+ #define Elf_Sym			ElfW(Sym)
+ 
+ static Elf_Ehdr ehdr;
++static Elf_Phdr *phdr;
+ 
+ struct relocs {
+ 	uint32_t	*offset;
+@@ -383,9 +386,39 @@ static void read_ehdr(FILE *fp)
+ 	}
+ }
+ 
++static void read_phdrs(FILE *fp)
++{
++	unsigned int i;
++
++	phdr = calloc(ehdr.e_phnum, sizeof(Elf_Phdr));
++	if (!phdr) {
++		die("Unable to allocate %d program headers\n",
++		    ehdr.e_phnum);
++	}
++	if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) {
++		die("Seek to %d failed: %s\n",
++			ehdr.e_phoff, strerror(errno));
++	}
++	if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) {
++		die("Cannot read ELF program headers: %s\n",
++			strerror(errno));
++	}
++	for(i = 0; i < ehdr.e_phnum; i++) {
++		phdr[i].p_type      = elf_word_to_cpu(phdr[i].p_type);
++		phdr[i].p_offset    = elf_off_to_cpu(phdr[i].p_offset);
++		phdr[i].p_vaddr     = elf_addr_to_cpu(phdr[i].p_vaddr);
++		phdr[i].p_paddr     = elf_addr_to_cpu(phdr[i].p_paddr);
++		phdr[i].p_filesz    = elf_word_to_cpu(phdr[i].p_filesz);
++		phdr[i].p_memsz     = elf_word_to_cpu(phdr[i].p_memsz);
++		phdr[i].p_flags     = elf_word_to_cpu(phdr[i].p_flags);
++		phdr[i].p_align     = elf_word_to_cpu(phdr[i].p_align);
++	}
++
++}
++
+ static void read_shdrs(FILE *fp)
+ {
+-	int i;
++	unsigned int i;
+ 	Elf_Shdr shdr;
+ 
+ 	secs = calloc(ehdr.e_shnum, sizeof(struct section));
+@@ -420,7 +453,7 @@ static void read_shdrs(FILE *fp)
+ 
+ static void read_strtabs(FILE *fp)
+ {
+-	int i;
++	unsigned int i;
+ 	for (i = 0; i < ehdr.e_shnum; i++) {
+ 		struct section *sec = &secs[i];
+ 		if (sec->shdr.sh_type != SHT_STRTAB) {
+@@ -445,7 +478,7 @@ static void read_strtabs(FILE *fp)
+ 
+ static void read_symtabs(FILE *fp)
+ {
+-	int i,j;
++	unsigned int i,j;
+ 	for (i = 0; i < ehdr.e_shnum; i++) {
+ 		struct section *sec = &secs[i];
+ 		if (sec->shdr.sh_type != SHT_SYMTAB) {
+@@ -476,9 +509,11 @@ static void read_symtabs(FILE *fp)
+ }
+ 
+ 
+-static void read_relocs(FILE *fp)
++static void read_relocs(FILE *fp, int use_real_mode)
+ {
+-	int i,j;
++	unsigned int i,j;
++	uint32_t base;
++
+ 	for (i = 0; i < ehdr.e_shnum; i++) {
+ 		struct section *sec = &secs[i];
+ 		if (sec->shdr.sh_type != SHT_REL_TYPE) {
+@@ -498,9 +533,22 @@ static void read_relocs(FILE *fp)
+ 			die("Cannot read symbol table: %s\n",
+ 				strerror(errno));
+ 		}
++		base = 0;
++
++#ifdef CONFIG_X86_32
++		for (j = 0; !use_real_mode && j < ehdr.e_phnum; j++) {
++			if (phdr[j].p_type != PT_LOAD )
++				continue;
++			if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz)
++				continue;
++			base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr;
++			break;
++		}
++#endif
++
+ 		for (j = 0; j < sec->shdr.sh_size/sizeof(Elf_Rel); j++) {
+ 			Elf_Rel *rel = &sec->reltab[j];
+-			rel->r_offset = elf_addr_to_cpu(rel->r_offset);
++			rel->r_offset = elf_addr_to_cpu(rel->r_offset) + base;
+ 			rel->r_info   = elf_xword_to_cpu(rel->r_info);
+ #if (SHT_REL_TYPE == SHT_RELA)
+ 			rel->r_addend = elf_xword_to_cpu(rel->r_addend);
+@@ -512,7 +560,7 @@ static void read_relocs(FILE *fp)
+ 
+ static void print_absolute_symbols(void)
+ {
+-	int i;
++	unsigned int i;
+ 	const char *format;
+ 
+ 	if (ELF_BITS == 64)
+@@ -525,7 +573,7 @@ static void print_absolute_symbols(void)
+ 	for (i = 0; i < ehdr.e_shnum; i++) {
+ 		struct section *sec = &secs[i];
+ 		char *sym_strtab;
+-		int j;
++		unsigned int j;
+ 
+ 		if (sec->shdr.sh_type != SHT_SYMTAB) {
+ 			continue;
+@@ -552,7 +600,7 @@ static void print_absolute_symbols(void)
+ 
+ static void print_absolute_relocs(void)
+ {
+-	int i, printed = 0;
++	unsigned int i, printed = 0;
+ 	const char *format;
+ 
+ 	if (ELF_BITS == 64)
+@@ -565,7 +613,7 @@ static void print_absolute_relocs(void)
+ 		struct section *sec_applies, *sec_symtab;
+ 		char *sym_strtab;
+ 		Elf_Sym *sh_symtab;
+-		int j;
++		unsigned int j;
+ 		if (sec->shdr.sh_type != SHT_REL_TYPE) {
+ 			continue;
+ 		}
+@@ -642,13 +690,13 @@ static void add_reloc(struct relocs *r, uint32_t offset)
+ static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel,
+ 			Elf_Sym *sym, const char *symname))
+ {
+-	int i;
++	unsigned int i;
+ 	/* Walk through the relocations */
+ 	for (i = 0; i < ehdr.e_shnum; i++) {
+ 		char *sym_strtab;
+ 		Elf_Sym *sh_symtab;
+ 		struct section *sec_applies, *sec_symtab;
+-		int j;
++		unsigned int j;
+ 		struct section *sec = &secs[i];
+ 
+ 		if (sec->shdr.sh_type != SHT_REL_TYPE) {
+@@ -822,6 +870,23 @@ static int do_reloc32(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
+ {
+ 	unsigned r_type = ELF32_R_TYPE(rel->r_info);
+ 	int shn_abs = (sym->st_shndx == SHN_ABS) && !is_reloc(S_REL, symname);
++	char *sym_strtab = sec->link->link->strtab;
++
++	/* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */
++	if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load"))
++		return 0;
++
++#ifdef CONFIG_PAX_KERNEXEC
++	/* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */
++	if (!strcmp(sec_name(sym->st_shndx), ".text.end") && !strcmp(sym_name(sym_strtab, sym), "_etext"))
++		return 0;
++	if (!strcmp(sec_name(sym->st_shndx), ".init.text"))
++		return 0;
++	if (!strcmp(sec_name(sym->st_shndx), ".exit.text"))
++		return 0;
++	if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR"))
++		return 0;
++#endif
+ 
+ 	switch (r_type) {
+ 	case R_386_NONE:
+@@ -960,7 +1025,7 @@ static int write32_as_text(uint32_t v, FILE *f)
+ 
+ static void emit_relocs(int as_text, int use_real_mode)
+ {
+-	int i;
++	unsigned int i;
+ 	int (*write_reloc)(uint32_t, FILE *) = write32;
+ 	int (*do_reloc)(struct section *sec, Elf_Rel *rel, Elf_Sym *sym,
+ 			const char *symname);
+@@ -1060,10 +1125,11 @@ void process(FILE *fp, int use_real_mode, int as_text,
+ {
+ 	regex_init(use_real_mode);
+ 	read_ehdr(fp);
++	read_phdrs(fp);
+ 	read_shdrs(fp);
+ 	read_strtabs(fp);
+ 	read_symtabs(fp);
+-	read_relocs(fp);
++	read_relocs(fp, use_real_mode);
+ 	if (ELF_BITS == 64)
+ 		percpu_init();
+ 	if (show_absolute_syms) {
+diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
+index 80ffa5b..a33bd15 100644
+--- a/arch/x86/um/tls_32.c
++++ b/arch/x86/um/tls_32.c
+@@ -260,7 +260,7 @@ out:
+ 	if (unlikely(task == current &&
+ 		     !t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed)) {
+ 		printk(KERN_ERR "get_tls_entry: task with pid %d got here "
+-				"without flushed TLS.", current->pid);
++				"without flushed TLS.", task_pid_nr(current));
+ 	}
+ 
+ 	return 0;
+diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
+index fd14be1..e3c79c0 100644
+--- a/arch/x86/vdso/Makefile
++++ b/arch/x86/vdso/Makefile
+@@ -181,7 +181,7 @@ quiet_cmd_vdso = VDSO    $@
+ 		       -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \
+ 		 sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
+ 
+-VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
++VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
+ GCOV_PROFILE := n
+ 
+ #
+diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
+index d6bfb87..876ee18 100644
+--- a/arch/x86/vdso/vdso32-setup.c
++++ b/arch/x86/vdso/vdso32-setup.c
+@@ -25,6 +25,7 @@
+ #include <asm/tlbflush.h>
+ #include <asm/vdso.h>
+ #include <asm/proto.h>
++#include <asm/mman.h>
+ 
+ enum {
+ 	VDSO_DISABLED = 0,
+@@ -226,7 +227,7 @@ static inline void map_compat_vdso(int map)
+ void enable_sep_cpu(void)
+ {
+ 	int cpu = get_cpu();
+-	struct tss_struct *tss = &per_cpu(init_tss, cpu);
++	struct tss_struct *tss = init_tss + cpu;
+ 
+ 	if (!boot_cpu_has(X86_FEATURE_SEP)) {
+ 		put_cpu();
+@@ -249,7 +250,7 @@ static int __init gate_vma_init(void)
+ 	gate_vma.vm_start = FIXADDR_USER_START;
+ 	gate_vma.vm_end = FIXADDR_USER_END;
+ 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
+-	gate_vma.vm_page_prot = __P101;
++	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
+ 
+ 	return 0;
+ }
+@@ -330,14 +331,14 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+ 	if (compat)
+ 		addr = VDSO_HIGH_BASE;
+ 	else {
+-		addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0);
++		addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE);
+ 		if (IS_ERR_VALUE(addr)) {
+ 			ret = addr;
+ 			goto up_fail;
+ 		}
+ 	}
+ 
+-	current->mm->context.vdso = (void *)addr;
++	current->mm->context.vdso = addr;
+ 
+ 	if (compat_uses_vma || !compat) {
+ 		/*
+@@ -353,11 +354,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+ 	}
+ 
+ 	current_thread_info()->sysenter_return =
+-		VDSO32_SYMBOL(addr, SYSENTER_RETURN);
++		(__force void __user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN);
+ 
+   up_fail:
+ 	if (ret)
+-		current->mm->context.vdso = NULL;
++		current->mm->context.vdso = 0;
+ 
+ 	up_write(&mm->mmap_sem);
+ 
+@@ -404,8 +405,14 @@ __initcall(ia32_binfmt_init);
+ 
+ const char *arch_vma_name(struct vm_area_struct *vma)
+ {
+-	if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
++	if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso)
+ 		return "[vdso]";
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso)
++		return "[vdso]";
++#endif
++
+ 	return NULL;
+ }
+ 
+@@ -415,7 +422,7 @@ struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
+ 	 * Check to see if the corresponding task was created in compat vdso
+ 	 * mode.
+ 	 */
+-	if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
++	if (mm && mm->context.vdso == VDSO_HIGH_BASE)
+ 		return &gate_vma;
+ 	return NULL;
+ }
+diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
+index ab6ba35..2a5ff0d 100644
+--- a/arch/x86/vdso/vma.c
++++ b/arch/x86/vdso/vma.c
+@@ -16,8 +16,6 @@
+ #include <asm/vdso.h>
+ #include <asm/page.h>
+ 
+-unsigned int __read_mostly vdso_enabled = 1;
+-
+ extern char vdso_start[], vdso_end[];
+ extern unsigned short vdso_sync_cpuid;
+ 
+@@ -169,13 +167,15 @@ static int setup_additional_pages(struct linux_binprm *bprm,
+ 				  unsigned size)
+ {
+ 	struct mm_struct *mm = current->mm;
+-	unsigned long addr;
++	unsigned long addr = 0;
+ 	int ret;
+ 
+-	if (!vdso_enabled)
+-		return 0;
+-
+ 	down_write(&mm->mmap_sem);
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	addr = vdso_addr(mm->start_stack, size);
+ 	addr = get_unmapped_area(NULL, addr, size, 0, 0);
+ 	if (IS_ERR_VALUE(addr)) {
+@@ -183,16 +183,14 @@ static int setup_additional_pages(struct linux_binprm *bprm,
+ 		goto up_fail;
+ 	}
+ 
+-	current->mm->context.vdso = (void *)addr;
++	mm->context.vdso = addr;
+ 
+ 	ret = install_special_mapping(mm, addr, size,
+ 				      VM_READ|VM_EXEC|
+ 				      VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
+ 				      pages);
+-	if (ret) {
+-		current->mm->context.vdso = NULL;
+-		goto up_fail;
+-	}
++	if (ret)
++		mm->context.vdso = 0;
+ 
+ up_fail:
+ 	up_write(&mm->mmap_sem);
+@@ -212,10 +210,3 @@ int x32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+ 				      vdsox32_size);
+ }
+ #endif
+-
+-static __init int vdso_setup(char *s)
+-{
+-	vdso_enabled = simple_strtoul(s, NULL, 0);
+-	return 0;
+-}
+-__setup("vdso=", vdso_setup);
+diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
+index 01b9026..1e476df 100644
+--- a/arch/x86/xen/Kconfig
++++ b/arch/x86/xen/Kconfig
+@@ -9,6 +9,7 @@ config XEN
+ 	select XEN_HAVE_PVMMU
+ 	depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS)
+ 	depends on X86_TSC
++	depends on !GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_VIRT_XEN
+ 	help
+ 	  This is the Linux Xen port.  Enabling this will allow the
+ 	  kernel to boot in a paravirtualized environment under the
+diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
+index 201d09a..2302db1 100644
+--- a/arch/x86/xen/enlighten.c
++++ b/arch/x86/xen/enlighten.c
+@@ -123,8 +123,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
+ 
+ struct shared_info xen_dummy_shared_info;
+ 
+-void *xen_initial_gdt;
+-
+ RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
+ __read_mostly int xen_have_vector_callback;
+ EXPORT_SYMBOL_GPL(xen_have_vector_callback);
+@@ -542,8 +540,7 @@ static void xen_load_gdt(const struct desc_ptr *dtr)
+ {
+ 	unsigned long va = dtr->address;
+ 	unsigned int size = dtr->size + 1;
+-	unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+-	unsigned long frames[pages];
++	unsigned long frames[65536 / PAGE_SIZE];
+ 	int f;
+ 
+ 	/*
+@@ -591,8 +588,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
+ {
+ 	unsigned long va = dtr->address;
+ 	unsigned int size = dtr->size + 1;
+-	unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+-	unsigned long frames[pages];
++	unsigned long frames[(GDT_SIZE + PAGE_SIZE - 1) / PAGE_SIZE];
+ 	int f;
+ 
+ 	/*
+@@ -600,7 +596,7 @@ static void __init xen_load_gdt_boot(const struct desc_ptr *dtr)
+ 	 * 8-byte entries, or 16 4k pages..
+ 	 */
+ 
+-	BUG_ON(size > 65536);
++	BUG_ON(size > GDT_SIZE);
+ 	BUG_ON(va & ~PAGE_MASK);
+ 
+ 	for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) {
+@@ -989,7 +985,7 @@ static u32 xen_safe_apic_wait_icr_idle(void)
+         return 0;
+ }
+ 
+-static void set_xen_basic_apic_ops(void)
++static void __init set_xen_basic_apic_ops(void)
+ {
+ 	apic->read = xen_apic_read;
+ 	apic->write = xen_apic_write;
+@@ -1295,30 +1291,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
+ #endif
+ };
+ 
+-static void xen_reboot(int reason)
++static __noreturn void xen_reboot(int reason)
+ {
+ 	struct sched_shutdown r = { .reason = reason };
+ 
+-	if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r))
+-		BUG();
++	HYPERVISOR_sched_op(SCHEDOP_shutdown, &r);
++	BUG();
+ }
+ 
+-static void xen_restart(char *msg)
++static __noreturn void xen_restart(char *msg)
+ {
+ 	xen_reboot(SHUTDOWN_reboot);
+ }
+ 
+-static void xen_emergency_restart(void)
++static __noreturn void xen_emergency_restart(void)
+ {
+ 	xen_reboot(SHUTDOWN_reboot);
+ }
+ 
+-static void xen_machine_halt(void)
++static __noreturn void xen_machine_halt(void)
+ {
+ 	xen_reboot(SHUTDOWN_poweroff);
+ }
+ 
+-static void xen_machine_power_off(void)
++static __noreturn void xen_machine_power_off(void)
+ {
+ 	if (pm_power_off)
+ 		pm_power_off();
+@@ -1455,8 +1451,11 @@ static void __ref xen_setup_gdt(int cpu)
+ 	pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry_boot;
+ 	pv_cpu_ops.load_gdt = xen_load_gdt_boot;
+ 
+-	setup_stack_canary_segment(0);
+-	switch_to_new_gdt(0);
++	setup_stack_canary_segment(cpu);
++#ifdef CONFIG_X86_64
++	load_percpu_segment(cpu);
++#endif
++	switch_to_new_gdt(cpu);
+ 
+ 	pv_cpu_ops.write_gdt_entry = xen_write_gdt_entry;
+ 	pv_cpu_ops.load_gdt = xen_load_gdt;
+@@ -1564,7 +1563,17 @@ asmlinkage void __init xen_start_kernel(void)
+ 	__userpte_alloc_gfp &= ~__GFP_HIGHMEM;
+ 
+ 	/* Work out if we support NX */
+-	x86_configure_nx();
++#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
++	if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 &&
++	    (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) {
++		unsigned l, h;
++
++		__supported_pte_mask |= _PAGE_NX;
++		rdmsr(MSR_EFER, l, h);
++		l |= EFER_NX;
++		wrmsr(MSR_EFER, l, h);
++	}
++#endif
+ 
+ 	/* Get mfn list */
+ 	xen_build_dynamic_phys_to_machine();
+@@ -1592,13 +1601,6 @@ asmlinkage void __init xen_start_kernel(void)
+ 
+ 	machine_ops = xen_machine_ops;
+ 
+-	/*
+-	 * The only reliable way to retain the initial address of the
+-	 * percpu gdt_page is to remember it here, so we can go and
+-	 * mark it RW later, when the initial percpu area is freed.
+-	 */
+-	xen_initial_gdt = &per_cpu(gdt_page, 0);
+-
+ 	xen_smp_init();
+ 
+ #ifdef CONFIG_ACPI_NUMA
+diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
+index c83da6f..7dd4fbc 100644
+--- a/arch/x86/xen/mmu.c
++++ b/arch/x86/xen/mmu.c
+@@ -379,7 +379,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
+ 	return val;
+ }
+ 
+-static pteval_t pte_pfn_to_mfn(pteval_t val)
++static pteval_t __intentional_overflow(-1) pte_pfn_to_mfn(pteval_t val)
+ {
+ 	if (val & _PAGE_PRESENT) {
+ 		unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
+@@ -1903,8 +1903,12 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
+ 		/* L3_k[510] -> level2_kernel_pgt
+ 		 * L3_k[511] -> level2_fixmap_pgt */
+ 		convert_pfn_mfn(level3_kernel_pgt);
++		convert_pfn_mfn(level3_vmalloc_start_pgt);
++		convert_pfn_mfn(level3_vmalloc_end_pgt);
++		convert_pfn_mfn(level3_vmemmap_pgt);
+ 
+ 		/* L3_k[511][506] -> level1_fixmap_pgt */
++		/* L3_k[511][507] -> level1_vsyscall_pgt */
+ 		convert_pfn_mfn(level2_fixmap_pgt);
+ 	}
+ 	/* We get [511][511] and have Xen's version of level2_kernel_pgt */
+@@ -1929,11 +1933,18 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
+ 		set_page_prot(init_level4_pgt, PAGE_KERNEL_RO);
+ 		set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO);
+ 		set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO);
++		set_page_prot(level3_vmalloc_start_pgt, PAGE_KERNEL_RO);
++		set_page_prot(level3_vmalloc_end_pgt, PAGE_KERNEL_RO);
++		set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO);
+ 		set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO);
+ 		set_page_prot(level2_ident_pgt, PAGE_KERNEL_RO);
++		set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO);
+ 		set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
+ 		set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
+-		set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO);
++		set_page_prot(level1_fixmap_pgt[0], PAGE_KERNEL_RO);
++		set_page_prot(level1_fixmap_pgt[1], PAGE_KERNEL_RO);
++		set_page_prot(level1_fixmap_pgt[2], PAGE_KERNEL_RO);
++		set_page_prot(level1_vsyscall_pgt, PAGE_KERNEL_RO);
+ 
+ 		/* Pin down new L4 */
+ 		pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE,
+@@ -2120,6 +2131,7 @@ static void __init xen_post_allocator_init(void)
+ 	pv_mmu_ops.set_pud = xen_set_pud;
+ #if PAGETABLE_LEVELS == 4
+ 	pv_mmu_ops.set_pgd = xen_set_pgd;
++	pv_mmu_ops.set_pgd_batched = xen_set_pgd;
+ #endif
+ 
+ 	/* This will work as long as patching hasn't happened yet
+@@ -2198,6 +2210,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
+ 	.pud_val = PV_CALLEE_SAVE(xen_pud_val),
+ 	.make_pud = PV_CALLEE_SAVE(xen_make_pud),
+ 	.set_pgd = xen_set_pgd_hyper,
++	.set_pgd_batched = xen_set_pgd_hyper,
+ 
+ 	.alloc_pud = xen_alloc_pmd_init,
+ 	.release_pud = xen_release_pmd_init,
+diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
+index a18eadd..2e2f10e 100644
+--- a/arch/x86/xen/smp.c
++++ b/arch/x86/xen/smp.c
+@@ -283,17 +283,13 @@ static void __init xen_smp_prepare_boot_cpu(void)
+ 
+ 	if (xen_pv_domain()) {
+ 		if (!xen_feature(XENFEAT_writable_page_tables))
+-			/* We've switched to the "real" per-cpu gdt, so make
+-			 * sure the old memory can be recycled. */
+-			make_lowmem_page_readwrite(xen_initial_gdt);
+-
+ #ifdef CONFIG_X86_32
+ 		/*
+ 		 * Xen starts us with XEN_FLAT_RING1_DS, but linux code
+ 		 * expects __USER_DS
+ 		 */
+-		loadsegment(ds, __USER_DS);
+-		loadsegment(es, __USER_DS);
++		loadsegment(ds, __KERNEL_DS);
++		loadsegment(es, __KERNEL_DS);
+ #endif
+ 
+ 		xen_filter_cpu_maps();
+@@ -372,7 +368,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
+ #ifdef CONFIG_X86_32
+ 	/* Note: PVH is not yet supported on x86_32. */
+ 	ctxt->user_regs.fs = __KERNEL_PERCPU;
+-	ctxt->user_regs.gs = __KERNEL_STACK_CANARY;
++	savesegment(gs, ctxt->user_regs.gs);
+ #endif
+ 	ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
+ 
+@@ -381,8 +377,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
+ 	if (!xen_feature(XENFEAT_auto_translated_physmap)) {
+ 		ctxt->flags = VGCF_IN_KERNEL;
+ 		ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
+-		ctxt->user_regs.ds = __USER_DS;
+-		ctxt->user_regs.es = __USER_DS;
++		ctxt->user_regs.ds = __KERNEL_DS;
++		ctxt->user_regs.es = __KERNEL_DS;
+ 		ctxt->user_regs.ss = __KERNEL_DS;
+ 
+ 		xen_copy_trap_info(ctxt->trap_ctxt);
+@@ -437,13 +433,12 @@ static int xen_cpu_up(unsigned int cpu, struct task_struct *idle)
+ 	int rc;
+ 
+ 	per_cpu(current_task, cpu) = idle;
++	per_cpu(current_tinfo, cpu) = &idle->tinfo;
+ #ifdef CONFIG_X86_32
+ 	irq_ctx_init(cpu);
+ #else
+ 	clear_tsk_thread_flag(idle, TIF_FORK);
+-	per_cpu(kernel_stack, cpu) =
+-		(unsigned long)task_stack_page(idle) -
+-		KERNEL_STACK_OFFSET + THREAD_SIZE;
++	per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE;
+ #endif
+ 	xen_setup_runstate_info(cpu);
+ 	xen_setup_timer(cpu);
+@@ -719,7 +714,7 @@ static const struct smp_ops xen_smp_ops __initconst = {
+ 
+ void __init xen_smp_init(void)
+ {
+-	smp_ops = xen_smp_ops;
++	memcpy((void *)&smp_ops, &xen_smp_ops, sizeof smp_ops);
+ 	xen_fill_possible_map();
+ }
+ 
+diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
+index 33ca6e4..0ded929 100644
+--- a/arch/x86/xen/xen-asm_32.S
++++ b/arch/x86/xen/xen-asm_32.S
+@@ -84,14 +84,14 @@ ENTRY(xen_iret)
+ 	ESP_OFFSET=4	# bytes pushed onto stack
+ 
+ 	/*
+-	 * Store vcpu_info pointer for easy access.  Do it this way to
+-	 * avoid having to reload %fs
++	 * Store vcpu_info pointer for easy access.
+ 	 */
+ #ifdef CONFIG_SMP
+-	GET_THREAD_INFO(%eax)
+-	movl %ss:TI_cpu(%eax), %eax
+-	movl %ss:__per_cpu_offset(,%eax,4), %eax
+-	mov %ss:xen_vcpu(%eax), %eax
++	push %fs
++	mov $(__KERNEL_PERCPU), %eax
++	mov %eax, %fs
++	mov PER_CPU_VAR(xen_vcpu), %eax
++	pop %fs
+ #else
+ 	movl %ss:xen_vcpu, %eax
+ #endif
+diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
+index 485b695..fda3e7c 100644
+--- a/arch/x86/xen/xen-head.S
++++ b/arch/x86/xen/xen-head.S
+@@ -39,6 +39,17 @@ ENTRY(startup_xen)
+ #ifdef CONFIG_X86_32
+ 	mov %esi,xen_start_info
+ 	mov $init_thread_union+THREAD_SIZE,%esp
++#ifdef CONFIG_SMP
++	movl $cpu_gdt_table,%edi
++	movl $__per_cpu_load,%eax
++	movw %ax,__KERNEL_PERCPU + 2(%edi)
++	rorl $16,%eax
++	movb %al,__KERNEL_PERCPU + 4(%edi)
++	movb %ah,__KERNEL_PERCPU + 7(%edi)
++	movl $__per_cpu_end - 1,%eax
++	subl $__per_cpu_start,%eax
++	movw %ax,__KERNEL_PERCPU + 0(%edi)
++#endif
+ #else
+ 	mov %rsi,xen_start_info
+ 	mov $init_thread_union+THREAD_SIZE,%rsp
+diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
+index 1cb6f4c..9981524 100644
+--- a/arch/x86/xen/xen-ops.h
++++ b/arch/x86/xen/xen-ops.h
+@@ -10,8 +10,6 @@
+ extern const char xen_hypervisor_callback[];
+ extern const char xen_failsafe_callback[];
+ 
+-extern void *xen_initial_gdt;
+-
+ struct trap_info;
+ void xen_copy_trap_info(struct trap_info *traps);
+ 
+diff --git a/arch/xtensa/variants/dc232b/include/variant/core.h b/arch/xtensa/variants/dc232b/include/variant/core.h
+index 525bd3d..ef888b1 100644
+--- a/arch/xtensa/variants/dc232b/include/variant/core.h
++++ b/arch/xtensa/variants/dc232b/include/variant/core.h
+@@ -119,9 +119,9 @@
+   ----------------------------------------------------------------------*/
+ 
+ #define XCHAL_ICACHE_LINESIZE		32	/* I-cache line size in bytes */
+-#define XCHAL_DCACHE_LINESIZE		32	/* D-cache line size in bytes */
+ #define XCHAL_ICACHE_LINEWIDTH		5	/* log2(I line size in bytes) */
+ #define XCHAL_DCACHE_LINEWIDTH		5	/* log2(D line size in bytes) */
++#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH)	/* D-cache line size in bytes */
+ 
+ #define XCHAL_ICACHE_SIZE		16384	/* I-cache size in bytes or 0 */
+ #define XCHAL_DCACHE_SIZE		16384	/* D-cache size in bytes or 0 */
+diff --git a/arch/xtensa/variants/fsf/include/variant/core.h b/arch/xtensa/variants/fsf/include/variant/core.h
+index 2f33760..835e50a 100644
+--- a/arch/xtensa/variants/fsf/include/variant/core.h
++++ b/arch/xtensa/variants/fsf/include/variant/core.h
+@@ -11,6 +11,7 @@
+ #ifndef _XTENSA_CORE_H
+ #define _XTENSA_CORE_H
+ 
++#include <linux/const.h>
+ 
+ /****************************************************************************
+ 	    Parameters Useful for Any Code, USER or PRIVILEGED
+@@ -112,9 +113,9 @@
+   ----------------------------------------------------------------------*/
+ 
+ #define XCHAL_ICACHE_LINESIZE		16	/* I-cache line size in bytes */
+-#define XCHAL_DCACHE_LINESIZE		16	/* D-cache line size in bytes */
+ #define XCHAL_ICACHE_LINEWIDTH		4	/* log2(I line size in bytes) */
+ #define XCHAL_DCACHE_LINEWIDTH		4	/* log2(D line size in bytes) */
++#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH) /* D-cache line size in bytes */
+ 
+ #define XCHAL_ICACHE_SIZE		8192	/* I-cache size in bytes or 0 */
+ #define XCHAL_DCACHE_SIZE		8192	/* D-cache size in bytes or 0 */
+diff --git a/arch/xtensa/variants/s6000/include/variant/core.h b/arch/xtensa/variants/s6000/include/variant/core.h
+index af00795..2bb8105 100644
+--- a/arch/xtensa/variants/s6000/include/variant/core.h
++++ b/arch/xtensa/variants/s6000/include/variant/core.h
+@@ -11,6 +11,7 @@
+ #ifndef _XTENSA_CORE_CONFIGURATION_H
+ #define _XTENSA_CORE_CONFIGURATION_H
+ 
++#include <linux/const.h>
+ 
+ /****************************************************************************
+ 	    Parameters Useful for Any Code, USER or PRIVILEGED
+@@ -118,9 +119,9 @@
+   ----------------------------------------------------------------------*/
+ 
+ #define XCHAL_ICACHE_LINESIZE		16	/* I-cache line size in bytes */
+-#define XCHAL_DCACHE_LINESIZE		16	/* D-cache line size in bytes */
+ #define XCHAL_ICACHE_LINEWIDTH		4	/* log2(I line size in bytes) */
+ #define XCHAL_DCACHE_LINEWIDTH		4	/* log2(D line size in bytes) */
++#define XCHAL_DCACHE_LINESIZE		(_AC(1,UL) << XCHAL_DCACHE_LINEWIDTH)	/* D-cache line size in bytes */
+ 
+ #define XCHAL_ICACHE_SIZE		32768	/* I-cache size in bytes or 0 */
+ #define XCHAL_DCACHE_SIZE		32768	/* D-cache size in bytes or 0 */
+diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
+index d8f80e7..5f41702 100644
+--- a/block/blk-cgroup.c
++++ b/block/blk-cgroup.c
+@@ -809,7 +809,7 @@ static void blkcg_css_free(struct cgroup_subsys_state *css)
+ static struct cgroup_subsys_state *
+ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
+ {
+-	static atomic64_t id_seq = ATOMIC64_INIT(0);
++	static atomic64_unchecked_t id_seq = ATOMIC64_INIT(0);
+ 	struct blkcg *blkcg;
+ 
+ 	if (!parent_css) {
+@@ -823,7 +823,7 @@ blkcg_css_alloc(struct cgroup_subsys_state *parent_css)
+ 
+ 	blkcg->cfq_weight = CFQ_WEIGHT_DEFAULT;
+ 	blkcg->cfq_leaf_weight = CFQ_WEIGHT_DEFAULT;
+-	blkcg->id = atomic64_inc_return(&id_seq); /* root is 0, start from 1 */
++	blkcg->id = atomic64_inc_return_unchecked(&id_seq); /* root is 0, start from 1 */
+ done:
+ 	spin_lock_init(&blkcg->lock);
+ 	INIT_RADIX_TREE(&blkcg->blkg_tree, GFP_ATOMIC);
+diff --git a/block/blk-exec.c b/block/blk-exec.c
+index dbf4502..3394b6e 100644
+--- a/block/blk-exec.c
++++ b/block/blk-exec.c
+@@ -56,6 +56,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
+ 	bool is_pm_resume;
+ 
+ 	WARN_ON(irqs_disabled());
++	WARN_ON(rq->cmd_type == REQ_TYPE_FS);
+ 
+ 	rq->rq_disk = bd_disk;
+ 	rq->end_io = done;
+diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
+index 1855bf5..af12b06 100644
+--- a/block/blk-iopoll.c
++++ b/block/blk-iopoll.c
+@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopoll *iopoll)
+ }
+ EXPORT_SYMBOL(blk_iopoll_complete);
+ 
+-static void blk_iopoll_softirq(struct softirq_action *h)
++static __latent_entropy void blk_iopoll_softirq(void)
+ {
+ 	struct list_head *list = this_cpu_ptr(&blk_cpu_iopoll);
+ 	int rearm = 0, budget = blk_iopoll_budget;
+diff --git a/block/blk-map.c b/block/blk-map.c
+index ae4ae10..c470b8d 100644
+--- a/block/blk-map.c
++++ b/block/blk-map.c
+@@ -302,7 +302,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
+ 	if (!len || !kbuf)
+ 		return -EINVAL;
+ 
+-	do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf);
++	do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf);
+ 	if (do_copy)
+ 		bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading);
+ 	else
+diff --git a/block/blk-mq.c b/block/blk-mq.c
+index 883f720..37322f0 100644
+--- a/block/blk-mq.c
++++ b/block/blk-mq.c
+@@ -710,14 +710,9 @@ void blk_mq_insert_request(struct request *rq, bool at_head, bool run_queue,
+ 
+ 	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+ 
+-	if (rq->cmd_flags & (REQ_FLUSH | REQ_FUA) &&
+-	    !(rq->cmd_flags & (REQ_FLUSH_SEQ))) {
+-		blk_insert_flush(rq);
+-	} else {
+-		spin_lock(&ctx->lock);
+-		__blk_mq_insert_request(hctx, rq, at_head);
+-		spin_unlock(&ctx->lock);
+-	}
++	spin_lock(&ctx->lock);
++	__blk_mq_insert_request(hctx, rq, at_head);
++	spin_unlock(&ctx->lock);
+ 
+ 	blk_mq_put_ctx(current_ctx);
+ 
+diff --git a/block/blk-softirq.c b/block/blk-softirq.c
+index 57790c1..5e988dd 100644
+--- a/block/blk-softirq.c
++++ b/block/blk-softirq.c
+@@ -18,7 +18,7 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done);
+  * Softirq action handler - move entries to local list and loop over them
+  * while passing them to the queue registered handler.
+  */
+-static void blk_done_softirq(struct softirq_action *h)
++static __latent_entropy void blk_done_softirq(void)
+ {
+ 	struct list_head *cpu_list, local_list;
+ 
+diff --git a/block/bsg.c b/block/bsg.c
+index 420a5a9..23834aa 100644
+--- a/block/bsg.c
++++ b/block/bsg.c
+@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
+ 				struct sg_io_v4 *hdr, struct bsg_device *bd,
+ 				fmode_t has_write_perm)
+ {
++	unsigned char tmpcmd[sizeof(rq->__cmd)];
++	unsigned char *cmdptr;
++
+ 	if (hdr->request_len > BLK_MAX_CDB) {
+ 		rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL);
+ 		if (!rq->cmd)
+ 			return -ENOMEM;
+-	}
++		cmdptr = rq->cmd;
++	} else
++		cmdptr = tmpcmd;
+ 
+-	if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request,
++	if (copy_from_user(cmdptr, (void __user *)(unsigned long)hdr->request,
+ 			   hdr->request_len))
+ 		return -EFAULT;
+ 
++	if (cmdptr != rq->cmd)
++		memcpy(rq->cmd, cmdptr, hdr->request_len);
++
+ 	if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
+ 		if (blk_verify_command(rq->cmd, has_write_perm))
+ 			return -EPERM;
+diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
+index a0926a6..b2b14b2 100644
+--- a/block/compat_ioctl.c
++++ b/block/compat_ioctl.c
+@@ -156,7 +156,7 @@ static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
+ 	cgc = compat_alloc_user_space(sizeof(*cgc));
+ 	cgc32 = compat_ptr(arg);
+ 
+-	if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
++	if (copy_in_user(cgc->cmd, cgc32->cmd, sizeof(cgc->cmd)) ||
+ 	    get_user(data, &cgc32->buffer) ||
+ 	    put_user(compat_ptr(data), &cgc->buffer) ||
+ 	    copy_in_user(&cgc->buflen, &cgc32->buflen,
+@@ -341,7 +341,7 @@ static int compat_fd_ioctl(struct block_device *bdev, fmode_t mode,
+ 		err |= __get_user(f->spec1, &uf->spec1);
+ 		err |= __get_user(f->fmt_gap, &uf->fmt_gap);
+ 		err |= __get_user(name, &uf->name);
+-		f->name = compat_ptr(name);
++		f->name = (void __force_kernel *)compat_ptr(name);
+ 		if (err) {
+ 			err = -EFAULT;
+ 			goto out;
+diff --git a/block/genhd.c b/block/genhd.c
+index 9316f5f..16b4af2 100644
+--- a/block/genhd.c
++++ b/block/genhd.c
+@@ -469,21 +469,24 @@ static char *bdevt_str(dev_t devt, char *buf)
+ 
+ /*
+  * Register device numbers dev..(dev+range-1)
+- * range must be nonzero
++ * Noop if @range is zero.
+  * The hash chain is sorted on range, so that subranges can override.
+  */
+ void blk_register_region(dev_t devt, unsigned long range, struct module *module,
+ 			 struct kobject *(*probe)(dev_t, int *, void *),
+ 			 int (*lock)(dev_t, void *), void *data)
+ {
+-	kobj_map(bdev_map, devt, range, module, probe, lock, data);
++	if (range)
++		kobj_map(bdev_map, devt, range, module, probe, lock, data);
+ }
+ 
+ EXPORT_SYMBOL(blk_register_region);
+ 
++/* undo blk_register_region(), noop if @range is zero */
+ void blk_unregister_region(dev_t devt, unsigned long range)
+ {
+-	kobj_unmap(bdev_map, devt, range);
++	if (range)
++		kobj_unmap(bdev_map, devt, range);
+ }
+ 
+ EXPORT_SYMBOL(blk_unregister_region);
+diff --git a/block/partitions/efi.c b/block/partitions/efi.c
+index dc51f46..d5446a8 100644
+--- a/block/partitions/efi.c
++++ b/block/partitions/efi.c
+@@ -293,14 +293,14 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
+ 	if (!gpt)
+ 		return NULL;
+ 
++	if (!le32_to_cpu(gpt->num_partition_entries))
++		return NULL;
++	pte = kcalloc(le32_to_cpu(gpt->num_partition_entries), le32_to_cpu(gpt->sizeof_partition_entry), GFP_KERNEL);
++	if (!pte)
++		return NULL;
++
+ 	count = le32_to_cpu(gpt->num_partition_entries) *
+                 le32_to_cpu(gpt->sizeof_partition_entry);
+-	if (!count)
+-		return NULL;
+-	pte = kmalloc(count, GFP_KERNEL);
+-	if (!pte)
+-		return NULL;
+-
+ 	if (read_lba(state, le64_to_cpu(gpt->partition_entry_lba),
+ 			(u8 *) pte, count) < count) {
+ 		kfree(pte);
+diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
+index 4044cf7..555ae4e 100644
+--- a/block/scsi_ioctl.c
++++ b/block/scsi_ioctl.c
+@@ -67,7 +67,7 @@ static int scsi_get_bus(struct request_queue *q, int __user *p)
+ 	return put_user(0, p);
+ }
+ 
+-static int sg_get_timeout(struct request_queue *q)
++static int __intentional_overflow(-1) sg_get_timeout(struct request_queue *q)
+ {
+ 	return jiffies_to_clock_t(q->sg_timeout);
+ }
+@@ -224,8 +224,20 @@ EXPORT_SYMBOL(blk_verify_command);
+ static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
+ 			     struct sg_io_hdr *hdr, fmode_t mode)
+ {
+-	if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
++	unsigned char tmpcmd[sizeof(rq->__cmd)];
++	unsigned char *cmdptr;
++
++	if (rq->cmd != rq->__cmd)
++		cmdptr = rq->cmd;
++	else
++		cmdptr = tmpcmd;
++
++	if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len))
+ 		return -EFAULT;
++
++	if (cmdptr != rq->cmd)
++		memcpy(rq->cmd, cmdptr, hdr->cmd_len);
++
+ 	if (blk_verify_command(rq->cmd, mode & FMODE_WRITE))
+ 		return -EPERM;
+ 
+@@ -417,6 +429,8 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
+ 	int err;
+ 	unsigned int in_len, out_len, bytes, opcode, cmdlen;
+ 	char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE];
++	unsigned char tmpcmd[sizeof(rq->__cmd)];
++	unsigned char *cmdptr;
+ 
+ 	if (!sic)
+ 		return -EINVAL;
+@@ -450,9 +464,18 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
+ 	 */
+ 	err = -EFAULT;
+ 	rq->cmd_len = cmdlen;
+-	if (copy_from_user(rq->cmd, sic->data, cmdlen))
++
++	if (rq->cmd != rq->__cmd)
++		cmdptr = rq->cmd;
++	else
++		cmdptr = tmpcmd;
++
++	if (copy_from_user(cmdptr, sic->data, cmdlen))
+ 		goto error;
+ 
++	if (rq->cmd != cmdptr)
++		memcpy(rq->cmd, cmdptr, cmdlen);
++
+ 	if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
+ 		goto error;
+ 
+diff --git a/crypto/cryptd.c b/crypto/cryptd.c
+index 75c415d..0b21cd8 100644
+--- a/crypto/cryptd.c
++++ b/crypto/cryptd.c
+@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx {
+ 
+ struct cryptd_blkcipher_request_ctx {
+ 	crypto_completion_t complete;
+-};
++} __no_const;
+ 
+ struct cryptd_hash_ctx {
+ 	struct crypto_shash *child;
+@@ -80,7 +80,7 @@ struct cryptd_aead_ctx {
+ 
+ struct cryptd_aead_request_ctx {
+ 	crypto_completion_t complete;
+-};
++} __no_const;
+ 
+ static void cryptd_queue_worker(struct work_struct *work);
+ 
+diff --git a/crypto/cts.c b/crypto/cts.c
+index 60b9da3..bd94058 100644
+--- a/crypto/cts.c
++++ b/crypto/cts.c
+@@ -202,7 +202,8 @@ static int cts_cbc_decrypt(struct crypto_cts_ctx *ctx,
+ 	/* 5. Append the tail (BB - Ln) bytes of Xn (tmp) to Cn to create En */
+ 	memcpy(s + bsize + lastn, tmp + lastn, bsize - lastn);
+ 	/* 6. Decrypt En to create Pn-1 */
+-	memset(iv, 0, sizeof(iv));
++	memzero_explicit(iv, sizeof(iv));
++
+ 	sg_set_buf(&sgsrc[0], s + bsize, bsize);
+ 	sg_set_buf(&sgdst[0], d, bsize);
+ 	err = crypto_blkcipher_decrypt_iv(&lcldesc, sgdst, sgsrc, bsize);
+diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
+index c305d41..a96de79 100644
+--- a/crypto/pcrypt.c
++++ b/crypto/pcrypt.c
+@@ -440,7 +440,7 @@ static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
+ 	int ret;
+ 
+ 	pinst->kobj.kset = pcrypt_kset;
+-	ret = kobject_add(&pinst->kobj, NULL, name);
++	ret = kobject_add(&pinst->kobj, NULL, "%s", name);
+ 	if (!ret)
+ 		kobject_uevent(&pinst->kobj, KOBJ_ADD);
+ 
+diff --git a/crypto/sha1_generic.c b/crypto/sha1_generic.c
+index fdf7c00..a3e50c3 100644
+--- a/crypto/sha1_generic.c
++++ b/crypto/sha1_generic.c
+@@ -64,7 +64,7 @@ int crypto_sha1_update(struct shash_desc *desc, const u8 *data,
+ 			src = data + done;
+ 		} while (done + SHA1_BLOCK_SIZE <= len);
+ 
+-		memset(temp, 0, sizeof(temp));
++		memzero_explicit(temp, sizeof(temp));
+ 		partial = 0;
+ 	}
+ 	memcpy(sctx->buffer + partial, src, len - done);
+diff --git a/crypto/sha256_generic.c b/crypto/sha256_generic.c
+index 136381b..cde0361 100644
+--- a/crypto/sha256_generic.c
++++ b/crypto/sha256_generic.c
+@@ -210,10 +210,9 @@ static void sha256_transform(u32 *state, const u8 *input)
+ 
+ 	/* clear any sensitive info... */
+ 	a = b = c = d = e = f = g = h = t1 = t2 = 0;
+-	memset(W, 0, 64 * sizeof(u32));
++	memzero_explicit(W, 64 * sizeof(u32));
+ }
+ 
+-
+ static int sha224_init(struct shash_desc *desc)
+ {
+ 	struct sha256_state *sctx = shash_desc_ctx(desc);
+@@ -316,7 +315,7 @@ static int sha224_final(struct shash_desc *desc, u8 *hash)
+ 	sha256_final(desc, D);
+ 
+ 	memcpy(hash, D, SHA224_DIGEST_SIZE);
+-	memset(D, 0, SHA256_DIGEST_SIZE);
++	memzero_explicit(D, SHA256_DIGEST_SIZE);
+ 
+ 	return 0;
+ }
+diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c
+index 6c6d901..d350854 100644
+--- a/crypto/sha512_generic.c
++++ b/crypto/sha512_generic.c
+@@ -238,7 +238,7 @@ static int sha384_final(struct shash_desc *desc, u8 *hash)
+ 	sha512_final(desc, D);
+ 
+ 	memcpy(hash, D, 48);
+-	memset(D, 0, 64);
++	memzero_explicit(D, 64);
+ 
+ 	return 0;
+ }
+diff --git a/crypto/tgr192.c b/crypto/tgr192.c
+index f7ed2fb..321bc6f 100644
+--- a/crypto/tgr192.c
++++ b/crypto/tgr192.c
+@@ -612,7 +612,7 @@ static int tgr160_final(struct shash_desc *desc, u8 * out)
+ 
+ 	tgr192_final(desc, D);
+ 	memcpy(out, D, TGR160_DIGEST_SIZE);
+-	memset(D, 0, TGR192_DIGEST_SIZE);
++	memzero_explicit(D, TGR192_DIGEST_SIZE);
+ 
+ 	return 0;
+ }
+@@ -623,7 +623,7 @@ static int tgr128_final(struct shash_desc *desc, u8 * out)
+ 
+ 	tgr192_final(desc, D);
+ 	memcpy(out, D, TGR128_DIGEST_SIZE);
+-	memset(D, 0, TGR192_DIGEST_SIZE);
++	memzero_explicit(D, TGR192_DIGEST_SIZE);
+ 
+ 	return 0;
+ }
+diff --git a/crypto/vmac.c b/crypto/vmac.c
+index bf2d3a8..df76a81 100644
+--- a/crypto/vmac.c
++++ b/crypto/vmac.c
+@@ -613,7 +613,7 @@ static int vmac_final(struct shash_desc *pdesc, u8 *out)
+ 	}
+ 	mac = vmac(ctx->partial, ctx->partial_size, nonce, NULL, ctx);
+ 	memcpy(out, &mac, sizeof(vmac_t));
+-	memset(&mac, 0, sizeof(vmac_t));
++	memzero_explicit(&mac, sizeof(vmac_t));
+ 	memset(&ctx->__vmac_ctx, 0, sizeof(struct vmac_ctx));
+ 	ctx->partial_size = 0;
+ 	return 0;
+diff --git a/crypto/wp512.c b/crypto/wp512.c
+index 253db94..7ee5a04 100644
+--- a/crypto/wp512.c
++++ b/crypto/wp512.c
+@@ -1102,8 +1102,8 @@ static int wp384_final(struct shash_desc *desc, u8 *out)
+ 	u8 D[64];
+ 
+ 	wp512_final(desc, D);
+-	memcpy (out, D, WP384_DIGEST_SIZE);
+-	memset (D, 0, WP512_DIGEST_SIZE);
++	memcpy(out, D, WP384_DIGEST_SIZE);
++	memzero_explicit(D, WP512_DIGEST_SIZE);
+ 
+ 	return 0;
+ }
+@@ -1113,8 +1113,8 @@ static int wp256_final(struct shash_desc *desc, u8 *out)
+ 	u8 D[64];
+ 
+ 	wp512_final(desc, D);
+-	memcpy (out, D, WP256_DIGEST_SIZE);
+-	memset (D, 0, WP512_DIGEST_SIZE);
++	memcpy(out, D, WP256_DIGEST_SIZE);
++	memzero_explicit(D, WP512_DIGEST_SIZE);
+ 
+ 	return 0;
+ }
+diff --git a/crypto/zlib.c b/crypto/zlib.c
+index d980788..2422b3d 100644
+--- a/crypto/zlib.c
++++ b/crypto/zlib.c
+@@ -95,10 +95,10 @@ static int zlib_compress_setup(struct crypto_pcomp *tfm, void *params,
+ 	zlib_comp_exit(ctx);
+ 
+ 	window_bits = tb[ZLIB_COMP_WINDOWBITS]
+-					? nla_get_u32(tb[ZLIB_COMP_WINDOWBITS])
++					? nla_get_s32(tb[ZLIB_COMP_WINDOWBITS])
+ 					: MAX_WBITS;
+ 	mem_level = tb[ZLIB_COMP_MEMLEVEL]
+-					? nla_get_u32(tb[ZLIB_COMP_MEMLEVEL])
++					? nla_get_s32(tb[ZLIB_COMP_MEMLEVEL])
+ 					: DEF_MEM_LEVEL;
+ 
+ 	workspacesize = zlib_deflate_workspacesize(window_bits, mem_level);
+diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
+index 15dddc1..b61cf0c 100644
+--- a/drivers/acpi/acpica/hwxfsleep.c
++++ b/drivers/acpi/acpica/hwxfsleep.c
+@@ -63,11 +63,12 @@ static acpi_status acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
+ /* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
+ 
+ static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
+-	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
+-	 acpi_hw_extended_sleep},
+-	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
+-	 acpi_hw_extended_wake_prep},
+-	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
++	{.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
++	 .extended_function = acpi_hw_extended_sleep},
++	{.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
++	 .extended_function = acpi_hw_extended_wake_prep},
++	{.legacy_function = ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake),
++	 .extended_function = acpi_hw_extended_wake}
+ };
+ 
+ /*
+diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
+index e5bcd91..74f050d 100644
+--- a/drivers/acpi/apei/apei-internal.h
++++ b/drivers/acpi/apei/apei-internal.h
+@@ -19,7 +19,7 @@ typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx,
+ struct apei_exec_ins_type {
+ 	u32 flags;
+ 	apei_exec_ins_func_t run;
+-};
++} __do_const;
+ 
+ struct apei_exec_context {
+ 	u32 ip;
+diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
+index dab7cb7..f0d2994 100644
+--- a/drivers/acpi/apei/ghes.c
++++ b/drivers/acpi/apei/ghes.c
+@@ -500,7 +500,7 @@ static void __ghes_print_estatus(const char *pfx,
+ 				 const struct acpi_hest_generic *generic,
+ 				 const struct acpi_generic_status *estatus)
+ {
+-	static atomic_t seqno;
++	static atomic_unchecked_t seqno;
+ 	unsigned int curr_seqno;
+ 	char pfx_seq[64];
+ 
+@@ -511,7 +511,7 @@ static void __ghes_print_estatus(const char *pfx,
+ 		else
+ 			pfx = KERN_ERR;
+ 	}
+-	curr_seqno = atomic_inc_return(&seqno);
++	curr_seqno = atomic_inc_return_unchecked(&seqno);
+ 	snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
+ 	printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
+ 	       pfx_seq, generic->header.source_id);
+diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
+index a83e3c6..c3d617f 100644
+--- a/drivers/acpi/bgrt.c
++++ b/drivers/acpi/bgrt.c
+@@ -86,8 +86,10 @@ static int __init bgrt_init(void)
+ 	if (!bgrt_image)
+ 		return -ENODEV;
+ 
+-	bin_attr_image.private = bgrt_image;
+-	bin_attr_image.size = bgrt_image_size;
++	pax_open_kernel();
++	*(void **)&bin_attr_image.private = bgrt_image;
++	*(size_t *)&bin_attr_image.size = bgrt_image_size;
++	pax_close_kernel();
+ 
+ 	bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
+ 	if (!bgrt_kobj)
+diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
+index 3d8413d..95f638c 100644
+--- a/drivers/acpi/blacklist.c
++++ b/drivers/acpi/blacklist.c
+@@ -51,7 +51,7 @@ struct acpi_blacklist_item {
+ 	u32 is_critical_error;
+ };
+ 
+-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
++static const struct dmi_system_id acpi_osi_dmi_table[] __initconst;
+ 
+ /*
+  * POLICY: If *anything* doesn't work, put it on the blacklist.
+@@ -163,7 +163,7 @@ static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
++static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
+ 	{
+ 	.callback = dmi_disable_osi_vista,
+ 	.ident = "Fujitsu Siemens",
+diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
+index b48aefa..91b17ef 100644
+--- a/drivers/acpi/bus.c
++++ b/drivers/acpi/bus.c
+@@ -67,7 +67,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
+ }
+ #endif
+ 
+-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
++static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
+ 	/*
+ 	 * Invoke DSDT corruption work-around on all Toshiba Satellite.
+ 	 * https://bugzilla.kernel.org/show_bug.cgi?id=14679
+@@ -83,7 +83,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+ 	{}
+ };
+ #else
+-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
++static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
+ 	{}
+ };
+ #endif
+diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
+index c68e724..e863008 100644
+--- a/drivers/acpi/custom_method.c
++++ b/drivers/acpi/custom_method.c
+@@ -29,6 +29,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
+ 	struct acpi_table_header table;
+ 	acpi_status status;
+ 
++#ifdef CONFIG_GRKERNSEC_KMEM
++	return -EPERM;
++#endif
++
+ 	if (!(*ppos)) {
+ 		/* parse the table header to get the table length */
+ 		if (count <= sizeof(struct acpi_table_header))
+diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
+index 49d8990..500b5ffe 100644
+--- a/drivers/acpi/ec.c
++++ b/drivers/acpi/ec.c
+@@ -978,7 +978,7 @@ static int ec_clear_on_resume(const struct dmi_system_id *id)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id ec_dmi_table[] __initdata = {
++static const struct dmi_system_id ec_dmi_table[] __initconst = {
+ 	{
+ 	ec_skip_dsdt_scan, "Compal JFL92", {
+ 	DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
+diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
+index 139d9e4..9a9d799 100644
+--- a/drivers/acpi/pci_slot.c
++++ b/drivers/acpi/pci_slot.c
+@@ -195,7 +195,7 @@ static int do_sta_before_sun(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
++static const struct dmi_system_id acpi_pci_slot_dmi_table[] __initconst = {
+ 	/*
+ 	 * Fujitsu Primequest machines will return 1023 to indicate an
+ 	 * error if the _SUN method is evaluated on SxFy objects that
+diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
+index a4eea9a..1765579 100644
+--- a/drivers/acpi/processor_core.c
++++ b/drivers/acpi/processor_core.c
+@@ -27,7 +27,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
++static const struct dmi_system_id processor_idle_dmi_table[] __initconst = {
+ 	{
+ 	set_no_mwait, "Extensa 5220", {
+ 	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
+index c1c3562..4c77729 100644
+--- a/drivers/acpi/processor_driver.c
++++ b/drivers/acpi/processor_driver.c
+@@ -153,7 +153,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata acpi_cpu_notifier = {
++static struct notifier_block __refconst acpi_cpu_notifier = {
+ 	    .notifier_call = acpi_cpu_soft_notify,
+ };
+ 
+diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
+index fd8496a..bd2c3e3 100644
+--- a/drivers/acpi/processor_idle.c
++++ b/drivers/acpi/processor_idle.c
+@@ -952,7 +952,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
+ {
+ 	int i, count = CPUIDLE_DRIVER_STATE_START;
+ 	struct acpi_processor_cx *cx;
+-	struct cpuidle_state *state;
++	cpuidle_state_no_const *state;
+ 	struct cpuidle_driver *drv = &acpi_idle_driver;
+ 
+ 	if (!pr->flags.power_setup_done)
+diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
+index c40fb2e..2c09959 100644
+--- a/drivers/acpi/sleep.c
++++ b/drivers/acpi/sleep.c
+@@ -145,7 +145,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
++static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
+ 	{
+ 	.callback = init_old_suspend_ordering,
+ 	.ident = "Abit KN9 (nForce4 variant)",
+diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
+index 91a32ce..d77fcaf 100644
+--- a/drivers/acpi/sysfs.c
++++ b/drivers/acpi/sysfs.c
+@@ -425,11 +425,11 @@ static u32 num_counters;
+ static struct attribute **all_attrs;
+ static u32 acpi_gpe_count;
+ 
+-static struct attribute_group interrupt_stats_attr_group = {
++static attribute_group_no_const interrupt_stats_attr_group = {
+ 	.name = "interrupts",
+ };
+ 
+-static struct kobj_attribute *counter_attrs;
++static kobj_attribute_no_const *counter_attrs;
+ 
+ static void delete_gpe_attr_array(void)
+ {
+diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
+index 08626c8..e433906 100644
+--- a/drivers/acpi/thermal.c
++++ b/drivers/acpi/thermal.c
+@@ -1189,7 +1189,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id thermal_dmi_table[] __initdata = {
++static const struct dmi_system_id thermal_dmi_table[] __initconst = {
+ 	/*
+ 	 * Award BIOS on this AOpen makes thermal control almost worthless.
+ 	 * http://bugzilla.kernel.org/show_bug.cgi?id=8842
+diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
+index 997540d..cebb4c5 100644
+--- a/drivers/acpi/video.c
++++ b/drivers/acpi/video.c
+@@ -413,7 +413,7 @@ static int __init video_set_use_native_backlight(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id video_dmi_table[] __initdata = {
++static const struct dmi_system_id video_dmi_table[] __initconst = {
+ 	/*
+ 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
+ 	 */
+diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
+index b65d79c..27ae93d 100644
+--- a/drivers/ata/libahci.c
++++ b/drivers/ata/libahci.c
+@@ -1239,7 +1239,7 @@ int ahci_kick_engine(struct ata_port *ap)
+ }
+ EXPORT_SYMBOL_GPL(ahci_kick_engine);
+ 
+-static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
++static int __intentional_overflow(-1) ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
+ 				struct ata_taskfile *tf, int is_cmd, u16 flags,
+ 				unsigned long timeout_msec)
+ {
+diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
+index b1c0fcd..fcc0dd1 100644
+--- a/drivers/ata/libata-core.c
++++ b/drivers/ata/libata-core.c
+@@ -98,7 +98,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
+ static void ata_dev_xfermask(struct ata_device *dev);
+ static unsigned long ata_dev_blacklisted(const struct ata_device *dev);
+ 
+-atomic_t ata_print_id = ATOMIC_INIT(0);
++atomic_unchecked_t ata_print_id = ATOMIC_INIT(0);
+ 
+ struct ata_force_param {
+ 	const char	*name;
+@@ -4863,7 +4863,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
+ 	struct ata_port *ap;
+ 	unsigned int tag;
+ 
+-	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
++	BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+ 	ap = qc->ap;
+ 
+ 	qc->flags = 0;
+@@ -4879,7 +4879,7 @@ void __ata_qc_complete(struct ata_queued_cmd *qc)
+ 	struct ata_port *ap;
+ 	struct ata_link *link;
+ 
+-	WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
++	BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */
+ 	WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE));
+ 	ap = qc->ap;
+ 	link = qc->dev->link;
+@@ -5998,6 +5998,7 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
+ 		return;
+ 
+ 	spin_lock(&lock);
++	pax_open_kernel();
+ 
+ 	for (cur = ops->inherits; cur; cur = cur->inherits) {
+ 		void **inherit = (void **)cur;
+@@ -6011,8 +6012,9 @@ static void ata_finalize_port_ops(struct ata_port_operations *ops)
+ 		if (IS_ERR(*pp))
+ 			*pp = NULL;
+ 
+-	ops->inherits = NULL;
++	*(struct ata_port_operations **)&ops->inherits = NULL;
+ 
++	pax_close_kernel();
+ 	spin_unlock(&lock);
+ }
+ 
+@@ -6208,7 +6210,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
+ 
+ 	/* give ports names and add SCSI hosts */
+ 	for (i = 0; i < host->n_ports; i++) {
+-		host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
++		host->ports[i]->print_id = atomic_inc_return_unchecked(&ata_print_id);
+ 		host->ports[i]->local_port_no = i + 1;
+ 	}
+ 
+diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
+index ef8567d..8bdbd03 100644
+--- a/drivers/ata/libata-scsi.c
++++ b/drivers/ata/libata-scsi.c
+@@ -4147,7 +4147,7 @@ int ata_sas_port_init(struct ata_port *ap)
+ 
+ 	if (rc)
+ 		return rc;
+-	ap->print_id = atomic_inc_return(&ata_print_id);
++	ap->print_id = atomic_inc_return_unchecked(&ata_print_id);
+ 	return 0;
+ }
+ EXPORT_SYMBOL_GPL(ata_sas_port_init);
+diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
+index 45b5ab3..98446b8 100644
+--- a/drivers/ata/libata.h
++++ b/drivers/ata/libata.h
+@@ -53,7 +53,7 @@ enum {
+ 	ATA_DNXFER_QUIET	= (1 << 31),
+ };
+ 
+-extern atomic_t ata_print_id;
++extern atomic_unchecked_t ata_print_id;
+ extern int atapi_passthru16;
+ extern int libata_fua;
+ extern int libata_noacpi;
+diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
+index 73492dd..ca2bff5 100644
+--- a/drivers/ata/pata_arasan_cf.c
++++ b/drivers/ata/pata_arasan_cf.c
+@@ -865,7 +865,9 @@ static int arasan_cf_probe(struct platform_device *pdev)
+ 	/* Handle platform specific quirks */
+ 	if (quirk) {
+ 		if (quirk & CF_BROKEN_PIO) {
+-			ap->ops->set_piomode = NULL;
++			pax_open_kernel();
++			*(void **)&ap->ops->set_piomode = NULL;
++			pax_close_kernel();
+ 			ap->pio_mask = 0;
+ 		}
+ 		if (quirk & CF_BROKEN_MWDMA)
+diff --git a/drivers/atm/adummy.c b/drivers/atm/adummy.c
+index f9b983a..887b9d8 100644
+--- a/drivers/atm/adummy.c
++++ b/drivers/atm/adummy.c
+@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 		vcc->pop(vcc, skb);
+ 	else
+ 		dev_kfree_skb_any(skb);
+-	atomic_inc(&vcc->stats->tx);
++	atomic_inc_unchecked(&vcc->stats->tx);
+ 
+ 	return 0;
+ }
+diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
+index 62a7607..cc4be104 100644
+--- a/drivers/atm/ambassador.c
++++ b/drivers/atm/ambassador.c
+@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, tx_out * tx) {
+   PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx);
+   
+   // VC layer stats
+-  atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
++  atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
+   
+   // free the descriptor
+   kfree (tx_descr);
+@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
+ 	  dump_skb ("<<<", vc, skb);
+ 	  
+ 	  // VC layer stats
+-	  atomic_inc(&atm_vcc->stats->rx);
++	  atomic_inc_unchecked(&atm_vcc->stats->rx);
+ 	  __net_timestamp(skb);
+ 	  // end of our responsibility
+ 	  atm_vcc->push (atm_vcc, skb);
+@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, rx_out * rx) {
+       } else {
+       	PRINTK (KERN_INFO, "dropped over-size frame");
+ 	// should we count this?
+-	atomic_inc(&atm_vcc->stats->rx_drop);
++	atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
+       }
+       
+     } else {
+@@ -1338,7 +1338,7 @@ static int amb_send (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
+   }
+   
+   if (check_area (skb->data, skb->len)) {
+-    atomic_inc(&atm_vcc->stats->tx_err);
++    atomic_inc_unchecked(&atm_vcc->stats->tx_err);
+     return -ENOMEM; // ?
+   }
+   
+diff --git a/drivers/atm/atmtcp.c b/drivers/atm/atmtcp.c
+index 0e3f8f9..765a7a5 100644
+--- a/drivers/atm/atmtcp.c
++++ b/drivers/atm/atmtcp.c
+@@ -206,7 +206,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
+ 		if (vcc->pop) vcc->pop(vcc,skb);
+ 		else dev_kfree_skb(skb);
+ 		if (dev_data) return 0;
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		return -ENOLINK;
+ 	}
+ 	size = skb->len+sizeof(struct atmtcp_hdr);
+@@ -214,7 +214,7 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
+ 	if (!new_skb) {
+ 		if (vcc->pop) vcc->pop(vcc,skb);
+ 		else dev_kfree_skb(skb);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		return -ENOBUFS;
+ 	}
+ 	hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr));
+@@ -225,8 +225,8 @@ static int atmtcp_v_send(struct atm_vcc *vcc,struct sk_buff *skb)
+ 	if (vcc->pop) vcc->pop(vcc,skb);
+ 	else dev_kfree_skb(skb);
+ 	out_vcc->push(out_vcc,new_skb);
+-	atomic_inc(&vcc->stats->tx);
+-	atomic_inc(&out_vcc->stats->rx);
++	atomic_inc_unchecked(&vcc->stats->tx);
++	atomic_inc_unchecked(&out_vcc->stats->rx);
+ 	return 0;
+ }
+ 
+@@ -299,7 +299,7 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
+ 	out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci));
+ 	read_unlock(&vcc_sklist_lock);
+ 	if (!out_vcc) {
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		goto done;
+ 	}
+ 	skb_pull(skb,sizeof(struct atmtcp_hdr));
+@@ -311,8 +311,8 @@ static int atmtcp_c_send(struct atm_vcc *vcc,struct sk_buff *skb)
+ 	__net_timestamp(new_skb);
+ 	skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len);
+ 	out_vcc->push(out_vcc,new_skb);
+-	atomic_inc(&vcc->stats->tx);
+-	atomic_inc(&out_vcc->stats->rx);
++	atomic_inc_unchecked(&vcc->stats->tx);
++	atomic_inc_unchecked(&out_vcc->stats->rx);
+ done:
+ 	if (vcc->pop) vcc->pop(vcc,skb);
+ 	else dev_kfree_skb(skb);
+diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
+index b1955ba..b179940 100644
+--- a/drivers/atm/eni.c
++++ b/drivers/atm/eni.c
+@@ -522,7 +522,7 @@ static int rx_aal0(struct atm_vcc *vcc)
+ 		DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n",
+ 		    vcc->dev->number);
+ 		length = 0;
+-		atomic_inc(&vcc->stats->rx_err);
++		atomic_inc_unchecked(&vcc->stats->rx_err);
+ 	}
+ 	else {
+ 		length = ATM_CELL_SIZE-1; /* no HEC */
+@@ -577,7 +577,7 @@ static int rx_aal5(struct atm_vcc *vcc)
+ 			    size);
+ 		}
+ 		eff = length = 0;
+-		atomic_inc(&vcc->stats->rx_err);
++		atomic_inc_unchecked(&vcc->stats->rx_err);
+ 	}
+ 	else {
+ 		size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2);
+@@ -594,7 +594,7 @@ static int rx_aal5(struct atm_vcc *vcc)
+ 			    "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n",
+ 			    vcc->dev->number,vcc->vci,length,size << 2,descr);
+ 			length = eff = 0;
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 		}
+ 	}
+ 	skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL;
+@@ -767,7 +767,7 @@ rx_dequeued++;
+ 			vcc->push(vcc,skb);
+ 			pushed++;
+ 		}
+-		atomic_inc(&vcc->stats->rx);
++		atomic_inc_unchecked(&vcc->stats->rx);
+ 	}
+ 	wake_up(&eni_dev->rx_wait);
+ }
+@@ -1227,7 +1227,7 @@ static void dequeue_tx(struct atm_dev *dev)
+ 		    PCI_DMA_TODEVICE);
+ 		if (vcc->pop) vcc->pop(vcc,skb);
+ 		else dev_kfree_skb_irq(skb);
+-		atomic_inc(&vcc->stats->tx);
++		atomic_inc_unchecked(&vcc->stats->tx);
+ 		wake_up(&eni_dev->tx_wait);
+ dma_complete++;
+ 	}
+diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
+index b41c948..a002b17 100644
+--- a/drivers/atm/firestream.c
++++ b/drivers/atm/firestream.c
+@@ -749,7 +749,7 @@ static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
+ 				}
+ 			}
+ 
+-			atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
++			atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
+ 
+ 			fs_dprintk (FS_DEBUG_TXMEM, "i");
+ 			fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
+@@ -816,7 +816,7 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
+ #endif
+ 				skb_put (skb, qe->p1 & 0xffff); 
+ 				ATM_SKB(skb)->vcc = atm_vcc;
+-				atomic_inc(&atm_vcc->stats->rx);
++				atomic_inc_unchecked(&atm_vcc->stats->rx);
+ 				__net_timestamp(skb);
+ 				fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
+ 				atm_vcc->push (atm_vcc, skb);
+@@ -837,12 +837,12 @@ static void process_incoming (struct fs_dev *dev, struct queue *q)
+ 				kfree (pe);
+ 			}
+ 			if (atm_vcc)
+-				atomic_inc(&atm_vcc->stats->rx_drop);
++				atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
+ 			break;
+ 		case 0x1f: /*  Reassembly abort: no buffers. */
+ 			/* Silently increment error counter. */
+ 			if (atm_vcc)
+-				atomic_inc(&atm_vcc->stats->rx_drop);
++				atomic_inc_unchecked(&atm_vcc->stats->rx_drop);
+ 			break;
+ 		default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
+ 			printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", 
+diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
+index 204814e..cede831 100644
+--- a/drivers/atm/fore200e.c
++++ b/drivers/atm/fore200e.c
+@@ -931,9 +931,9 @@ fore200e_tx_irq(struct fore200e* fore200e)
+ #endif
+ 		/* check error condition */
+ 		if (*entry->status & STATUS_ERROR)
+-		    atomic_inc(&vcc->stats->tx_err);
++		    atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		else
+-		    atomic_inc(&vcc->stats->tx);
++		    atomic_inc_unchecked(&vcc->stats->tx);
+ 	    }
+ 	}
+ 
+@@ -1082,7 +1082,7 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
+     if (skb == NULL) {
+ 	DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len);
+ 
+-	atomic_inc(&vcc->stats->rx_drop);
++	atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 	return -ENOMEM;
+     } 
+ 
+@@ -1125,14 +1125,14 @@ fore200e_push_rpd(struct fore200e* fore200e, struct atm_vcc* vcc, struct rpd* rp
+ 
+ 	dev_kfree_skb_any(skb);
+ 
+-	atomic_inc(&vcc->stats->rx_drop);
++	atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 	return -ENOMEM;
+     }
+ 
+     ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
+ 
+     vcc->push(vcc, skb);
+-    atomic_inc(&vcc->stats->rx);
++    atomic_inc_unchecked(&vcc->stats->rx);
+ 
+     ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0);
+ 
+@@ -1210,7 +1210,7 @@ fore200e_rx_irq(struct fore200e* fore200e)
+ 		DPRINTK(2, "damaged PDU on %d.%d.%d\n",
+ 			fore200e->atm_dev->number,
+ 			entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci);
+-		atomic_inc(&vcc->stats->rx_err);
++		atomic_inc_unchecked(&vcc->stats->rx_err);
+ 	    }
+ 	}
+ 
+@@ -1655,7 +1655,7 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 		goto retry_here;
+ 	    }
+ 
+-	    atomic_inc(&vcc->stats->tx_err);
++	    atomic_inc_unchecked(&vcc->stats->tx_err);
+ 
+ 	    fore200e->tx_sat++;
+ 	    DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n",
+diff --git a/drivers/atm/he.c b/drivers/atm/he.c
+index aa6be26..f70a785 100644
+--- a/drivers/atm/he.c
++++ b/drivers/atm/he.c
+@@ -1690,7 +1690,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
+ 
+ 		if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) {
+ 			hprintk("HBUF_ERR!  (cid 0x%x)\n", cid);
+-				atomic_inc(&vcc->stats->rx_drop);
++				atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 			goto return_host_buffers;
+ 		}
+ 
+@@ -1717,7 +1717,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
+ 				RBRQ_LEN_ERR(he_dev->rbrq_head)
+ 							? "LEN_ERR" : "",
+ 							vcc->vpi, vcc->vci);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			goto return_host_buffers;
+ 		}
+ 
+@@ -1769,7 +1769,7 @@ he_service_rbrq(struct he_dev *he_dev, int group)
+ 		vcc->push(vcc, skb);
+ 		spin_lock(&he_dev->global_lock);
+ 
+-		atomic_inc(&vcc->stats->rx);
++		atomic_inc_unchecked(&vcc->stats->rx);
+ 
+ return_host_buffers:
+ 		++pdus_assembled;
+@@ -2095,7 +2095,7 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid)
+ 					tpd->vcc->pop(tpd->vcc, tpd->skb);
+ 				else
+ 					dev_kfree_skb_any(tpd->skb);
+-				atomic_inc(&tpd->vcc->stats->tx_err);
++				atomic_inc_unchecked(&tpd->vcc->stats->tx_err);
+ 			}
+ 			pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status));
+ 			return;
+@@ -2507,7 +2507,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 			vcc->pop(vcc, skb);
+ 		else
+ 			dev_kfree_skb_any(skb);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		return -EINVAL;
+ 	}
+ 
+@@ -2518,7 +2518,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 			vcc->pop(vcc, skb);
+ 		else
+ 			dev_kfree_skb_any(skb);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		return -EINVAL;
+ 	}
+ #endif
+@@ -2530,7 +2530,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 			vcc->pop(vcc, skb);
+ 		else
+ 			dev_kfree_skb_any(skb);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		spin_unlock_irqrestore(&he_dev->global_lock, flags);
+ 		return -ENOMEM;
+ 	}
+@@ -2572,7 +2572,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 					vcc->pop(vcc, skb);
+ 				else
+ 					dev_kfree_skb_any(skb);
+-				atomic_inc(&vcc->stats->tx_err);
++				atomic_inc_unchecked(&vcc->stats->tx_err);
+ 				spin_unlock_irqrestore(&he_dev->global_lock, flags);
+ 				return -ENOMEM;
+ 			}
+@@ -2603,7 +2603,7 @@ he_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 	__enqueue_tpd(he_dev, tpd, cid);
+ 	spin_unlock_irqrestore(&he_dev->global_lock, flags);
+ 
+-	atomic_inc(&vcc->stats->tx);
++	atomic_inc_unchecked(&vcc->stats->tx);
+ 
+ 	return 0;
+ }
+diff --git a/drivers/atm/horizon.c b/drivers/atm/horizon.c
+index 1dc0519..1aadaf7 100644
+--- a/drivers/atm/horizon.c
++++ b/drivers/atm/horizon.c
+@@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, int irq) {
+ 	{
+ 	  struct atm_vcc * vcc = ATM_SKB(skb)->vcc;
+ 	  // VC layer stats
+-	  atomic_inc(&vcc->stats->rx);
++	  atomic_inc_unchecked(&vcc->stats->rx);
+ 	  __net_timestamp(skb);
+ 	  // end of our responsibility
+ 	  vcc->push (vcc, skb);
+@@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const dev, int irq) {
+ 	dev->tx_iovec = NULL;
+ 	
+ 	// VC layer stats
+-	atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
++	atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx);
+ 	
+ 	// free the skb
+ 	hrz_kfree_skb (skb);
+diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
+index 1bdf104..9dc44b1 100644
+--- a/drivers/atm/idt77252.c
++++ b/drivers/atm/idt77252.c
+@@ -812,7 +812,7 @@ drain_scq(struct idt77252_dev *card, struct vc_map *vc)
+ 		else
+ 			dev_kfree_skb(skb);
+ 
+-		atomic_inc(&vcc->stats->tx);
++		atomic_inc_unchecked(&vcc->stats->tx);
+ 	}
+ 
+ 	atomic_dec(&scq->used);
+@@ -1075,13 +1075,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
+ 			if ((sb = dev_alloc_skb(64)) == NULL) {
+ 				printk("%s: Can't allocate buffers for aal0.\n",
+ 				       card->name);
+-				atomic_add(i, &vcc->stats->rx_drop);
++				atomic_add_unchecked(i, &vcc->stats->rx_drop);
+ 				break;
+ 			}
+ 			if (!atm_charge(vcc, sb->truesize)) {
+ 				RXPRINTK("%s: atm_charge() dropped aal0 packets.\n",
+ 					 card->name);
+-				atomic_add(i - 1, &vcc->stats->rx_drop);
++				atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);
+ 				dev_kfree_skb(sb);
+ 				break;
+ 			}
+@@ -1098,7 +1098,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
+ 			ATM_SKB(sb)->vcc = vcc;
+ 			__net_timestamp(sb);
+ 			vcc->push(vcc, sb);
+-			atomic_inc(&vcc->stats->rx);
++			atomic_inc_unchecked(&vcc->stats->rx);
+ 
+ 			cell += ATM_CELL_PAYLOAD;
+ 		}
+@@ -1135,13 +1135,13 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
+ 			         "(CDC: %08x)\n",
+ 			         card->name, len, rpp->len, readl(SAR_REG_CDC));
+ 			recycle_rx_pool_skb(card, rpp);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			return;
+ 		}
+ 		if (stat & SAR_RSQE_CRC) {
+ 			RXPRINTK("%s: AAL5 CRC error.\n", card->name);
+ 			recycle_rx_pool_skb(card, rpp);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			return;
+ 		}
+ 		if (skb_queue_len(&rpp->queue) > 1) {
+@@ -1152,7 +1152,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
+ 				RXPRINTK("%s: Can't alloc RX skb.\n",
+ 					 card->name);
+ 				recycle_rx_pool_skb(card, rpp);
+-				atomic_inc(&vcc->stats->rx_err);
++				atomic_inc_unchecked(&vcc->stats->rx_err);
+ 				return;
+ 			}
+ 			if (!atm_charge(vcc, skb->truesize)) {
+@@ -1171,7 +1171,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
+ 			__net_timestamp(skb);
+ 
+ 			vcc->push(vcc, skb);
+-			atomic_inc(&vcc->stats->rx);
++			atomic_inc_unchecked(&vcc->stats->rx);
+ 
+ 			return;
+ 		}
+@@ -1193,7 +1193,7 @@ dequeue_rx(struct idt77252_dev *card, struct rsq_entry *rsqe)
+ 		__net_timestamp(skb);
+ 
+ 		vcc->push(vcc, skb);
+-		atomic_inc(&vcc->stats->rx);
++		atomic_inc_unchecked(&vcc->stats->rx);
+ 
+ 		if (skb->truesize > SAR_FB_SIZE_3)
+ 			add_rx_skb(card, 3, SAR_FB_SIZE_3, 1);
+@@ -1304,14 +1304,14 @@ idt77252_rx_raw(struct idt77252_dev *card)
+ 		if (vcc->qos.aal != ATM_AAL0) {
+ 			RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n",
+ 				card->name, vpi, vci);
+-			atomic_inc(&vcc->stats->rx_drop);
++			atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 			goto drop;
+ 		}
+ 	
+ 		if ((sb = dev_alloc_skb(64)) == NULL) {
+ 			printk("%s: Can't allocate buffers for AAL0.\n",
+ 			       card->name);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			goto drop;
+ 		}
+ 
+@@ -1330,7 +1330,7 @@ idt77252_rx_raw(struct idt77252_dev *card)
+ 		ATM_SKB(sb)->vcc = vcc;
+ 		__net_timestamp(sb);
+ 		vcc->push(vcc, sb);
+-		atomic_inc(&vcc->stats->rx);
++		atomic_inc_unchecked(&vcc->stats->rx);
+ 
+ drop:
+ 		skb_pull(queue, 64);
+@@ -1955,13 +1955,13 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
+ 
+ 	if (vc == NULL) {
+ 		printk("%s: NULL connection in send().\n", card->name);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb(skb);
+ 		return -EINVAL;
+ 	}
+ 	if (!test_bit(VCF_TX, &vc->flags)) {
+ 		printk("%s: Trying to transmit on a non-tx VC.\n", card->name);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb(skb);
+ 		return -EINVAL;
+ 	}
+@@ -1973,14 +1973,14 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
+ 		break;
+ 	default:
+ 		printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb(skb);
+ 		return -EINVAL;
+ 	}
+ 
+ 	if (skb_shinfo(skb)->nr_frags != 0) {
+ 		printk("%s: No scatter-gather yet.\n", card->name);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb(skb);
+ 		return -EINVAL;
+ 	}
+@@ -1988,7 +1988,7 @@ idt77252_send_skb(struct atm_vcc *vcc, struct sk_buff *skb, int oam)
+ 
+ 	err = queue_skb(card, vc, skb, oam);
+ 	if (err) {
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb(skb);
+ 		return err;
+ 	}
+@@ -2011,7 +2011,7 @@ idt77252_send_oam(struct atm_vcc *vcc, void *cell, int flags)
+ 	skb = dev_alloc_skb(64);
+ 	if (!skb) {
+ 		printk("%s: Out of memory in send_oam().\n", card->name);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		return -ENOMEM;
+ 	}
+ 	atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
+diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
+index 4217f29..88f547a 100644
+--- a/drivers/atm/iphase.c
++++ b/drivers/atm/iphase.c
+@@ -1145,7 +1145,7 @@ static int rx_pkt(struct atm_dev *dev)
+ 	status = (u_short) (buf_desc_ptr->desc_mode);  
+ 	if (status & (RX_CER | RX_PTE | RX_OFL))  
+ 	{  
+-                atomic_inc(&vcc->stats->rx_err);
++                atomic_inc_unchecked(&vcc->stats->rx_err);
+ 		IF_ERR(printk("IA: bad packet, dropping it");)  
+                 if (status & RX_CER) { 
+                     IF_ERR(printk(" cause: packet CRC error\n");)
+@@ -1168,7 +1168,7 @@ static int rx_pkt(struct atm_dev *dev)
+ 	len = dma_addr - buf_addr;  
+         if (len > iadev->rx_buf_sz) {
+            printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz);
+-           atomic_inc(&vcc->stats->rx_err);
++           atomic_inc_unchecked(&vcc->stats->rx_err);
+ 	   goto out_free_desc;
+         }
+ 		  
+@@ -1318,7 +1318,7 @@ static void rx_dle_intr(struct atm_dev *dev)
+           ia_vcc = INPH_IA_VCC(vcc);
+           if (ia_vcc == NULL)
+           {
+-             atomic_inc(&vcc->stats->rx_err);
++             atomic_inc_unchecked(&vcc->stats->rx_err);
+              atm_return(vcc, skb->truesize);
+              dev_kfree_skb_any(skb);
+              goto INCR_DLE;
+@@ -1330,7 +1330,7 @@ static void rx_dle_intr(struct atm_dev *dev)
+           if ((length > iadev->rx_buf_sz) || (length > 
+                               (skb->len - sizeof(struct cpcs_trailer))))
+           {
+-             atomic_inc(&vcc->stats->rx_err);
++             atomic_inc_unchecked(&vcc->stats->rx_err);
+              IF_ERR(printk("rx_dle_intr: Bad  AAL5 trailer %d (skb len %d)", 
+                                                             length, skb->len);)
+              atm_return(vcc, skb->truesize);
+@@ -1346,7 +1346,7 @@ static void rx_dle_intr(struct atm_dev *dev)
+ 
+ 	  IF_RX(printk("rx_dle_intr: skb push");)  
+ 	  vcc->push(vcc,skb);  
+-	  atomic_inc(&vcc->stats->rx);
++	  atomic_inc_unchecked(&vcc->stats->rx);
+           iadev->rx_pkt_cnt++;
+       }  
+ INCR_DLE:
+@@ -2826,15 +2826,15 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
+          {
+              struct k_sonet_stats *stats;
+              stats = &PRIV(_ia_dev[board])->sonet_stats;
+-             printk("section_bip: %d\n", atomic_read(&stats->section_bip));
+-             printk("line_bip   : %d\n", atomic_read(&stats->line_bip));
+-             printk("path_bip   : %d\n", atomic_read(&stats->path_bip));
+-             printk("line_febe  : %d\n", atomic_read(&stats->line_febe));
+-             printk("path_febe  : %d\n", atomic_read(&stats->path_febe));
+-             printk("corr_hcs   : %d\n", atomic_read(&stats->corr_hcs));
+-             printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs));
+-             printk("tx_cells   : %d\n", atomic_read(&stats->tx_cells));
+-             printk("rx_cells   : %d\n", atomic_read(&stats->rx_cells));
++             printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip));
++             printk("line_bip   : %d\n", atomic_read_unchecked(&stats->line_bip));
++             printk("path_bip   : %d\n", atomic_read_unchecked(&stats->path_bip));
++             printk("line_febe  : %d\n", atomic_read_unchecked(&stats->line_febe));
++             printk("path_febe  : %d\n", atomic_read_unchecked(&stats->path_febe));
++             printk("corr_hcs   : %d\n", atomic_read_unchecked(&stats->corr_hcs));
++             printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs));
++             printk("tx_cells   : %d\n", atomic_read_unchecked(&stats->tx_cells));
++             printk("rx_cells   : %d\n", atomic_read_unchecked(&stats->rx_cells));
+          }
+             ia_cmds.status = 0;
+             break;
+@@ -2939,7 +2939,7 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
+ 	if ((desc == 0) || (desc > iadev->num_tx_desc))  
+ 	{  
+ 		IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) 
+-                atomic_inc(&vcc->stats->tx);
++                atomic_inc_unchecked(&vcc->stats->tx);
+ 		if (vcc->pop)   
+ 		    vcc->pop(vcc, skb);   
+ 		else  
+@@ -3044,14 +3044,14 @@ static int ia_pkt_tx (struct atm_vcc *vcc, struct sk_buff *skb) {
+         ATM_DESC(skb) = vcc->vci;
+         skb_queue_tail(&iadev->tx_dma_q, skb);
+ 
+-        atomic_inc(&vcc->stats->tx);
++        atomic_inc_unchecked(&vcc->stats->tx);
+         iadev->tx_pkt_cnt++;
+ 	/* Increment transaction counter */  
+ 	writel(2, iadev->dma+IPHASE5575_TX_COUNTER);  
+         
+ #if 0        
+         /* add flow control logic */ 
+-        if (atomic_read(&vcc->stats->tx) % 20 == 0) {
++        if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) {
+           if (iavcc->vc_desc_cnt > 10) {
+              vcc->tx_quota =  vcc->tx_quota * 3 / 4;
+             printk("Tx1:  vcc->tx_quota = %d \n", (u32)vcc->tx_quota );
+diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
+index fa7d7019..1e404c7 100644
+--- a/drivers/atm/lanai.c
++++ b/drivers/atm/lanai.c
+@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct lanai_dev *lanai,
+ 	vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0);
+ 	lanai_endtx(lanai, lvcc);
+ 	lanai_free_skb(lvcc->tx.atmvcc, skb);
+-	atomic_inc(&lvcc->tx.atmvcc->stats->tx);
++	atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx);
+ }
+ 
+ /* Try to fill the buffer - don't call unless there is backlog */
+@@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc *lvcc, int endptr)
+ 	ATM_SKB(skb)->vcc = lvcc->rx.atmvcc;
+ 	__net_timestamp(skb);
+ 	lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb);
+-	atomic_inc(&lvcc->rx.atmvcc->stats->rx);
++	atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx);
+     out:
+ 	lvcc->rx.buf.ptr = end;
+ 	cardvcc_write(lvcc, endptr, vcc_rxreadptr);
+@@ -1667,7 +1667,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
+ 		DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 "
+ 		    "vcc %d\n", lanai->number, (unsigned int) s, vci);
+ 		lanai->stats.service_rxnotaal5++;
+-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
++		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
+ 		return 0;
+ 	}
+ 	if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) {
+@@ -1679,7 +1679,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
+ 		int bytes;
+ 		read_unlock(&vcc_sklist_lock);
+ 		DPRINTK("got trashed rx pdu on vci %d\n", vci);
+-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
++		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
+ 		lvcc->stats.x.aal5.service_trash++;
+ 		bytes = (SERVICE_GET_END(s) * 16) -
+ 		    (((unsigned long) lvcc->rx.buf.ptr) -
+@@ -1691,7 +1691,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
+ 	}
+ 	if (s & SERVICE_STREAM) {
+ 		read_unlock(&vcc_sklist_lock);
+-		atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
++		atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
+ 		lvcc->stats.x.aal5.service_stream++;
+ 		printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream "
+ 		    "PDU on VCI %d!\n", lanai->number, vci);
+@@ -1699,7 +1699,7 @@ static int handle_service(struct lanai_dev *lanai, u32 s)
+ 		return 0;
+ 	}
+ 	DPRINTK("got rx crc error on vci %d\n", vci);
+-	atomic_inc(&lvcc->rx.atmvcc->stats->rx_err);
++	atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err);
+ 	lvcc->stats.x.aal5.service_rxcrc++;
+ 	lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4];
+ 	cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr);
+diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c
+index 9587e95..b45c5cb 100644
+--- a/drivers/atm/nicstar.c
++++ b/drivers/atm/nicstar.c
+@@ -1640,7 +1640,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 	if ((vc = (vc_map *) vcc->dev_data) == NULL) {
+ 		printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n",
+ 		       card->index);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb_any(skb);
+ 		return -EINVAL;
+ 	}
+@@ -1648,7 +1648,7 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 	if (!vc->tx) {
+ 		printk("nicstar%d: Trying to transmit on a non-tx VC.\n",
+ 		       card->index);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb_any(skb);
+ 		return -EINVAL;
+ 	}
+@@ -1656,14 +1656,14 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 	if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) {
+ 		printk("nicstar%d: Only AAL0 and AAL5 are supported.\n",
+ 		       card->index);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb_any(skb);
+ 		return -EINVAL;
+ 	}
+ 
+ 	if (skb_shinfo(skb)->nr_frags != 0) {
+ 		printk("nicstar%d: No scatter-gather yet.\n", card->index);
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb_any(skb);
+ 		return -EINVAL;
+ 	}
+@@ -1711,11 +1711,11 @@ static int ns_send(struct atm_vcc *vcc, struct sk_buff *skb)
+ 	}
+ 
+ 	if (push_scqe(card, vc, scq, &scqe, skb) != 0) {
+-		atomic_inc(&vcc->stats->tx_err);
++		atomic_inc_unchecked(&vcc->stats->tx_err);
+ 		dev_kfree_skb_any(skb);
+ 		return -EIO;
+ 	}
+-	atomic_inc(&vcc->stats->tx);
++	atomic_inc_unchecked(&vcc->stats->tx);
+ 
+ 	return 0;
+ }
+@@ -2032,14 +2032,14 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 				printk
+ 				    ("nicstar%d: Can't allocate buffers for aal0.\n",
+ 				     card->index);
+-				atomic_add(i, &vcc->stats->rx_drop);
++				atomic_add_unchecked(i, &vcc->stats->rx_drop);
+ 				break;
+ 			}
+ 			if (!atm_charge(vcc, sb->truesize)) {
+ 				RXPRINTK
+ 				    ("nicstar%d: atm_charge() dropped aal0 packets.\n",
+ 				     card->index);
+-				atomic_add(i - 1, &vcc->stats->rx_drop);	/* already increased by 1 */
++				atomic_add_unchecked(i - 1, &vcc->stats->rx_drop);	/* already increased by 1 */
+ 				dev_kfree_skb_any(sb);
+ 				break;
+ 			}
+@@ -2054,7 +2054,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 			ATM_SKB(sb)->vcc = vcc;
+ 			__net_timestamp(sb);
+ 			vcc->push(vcc, sb);
+-			atomic_inc(&vcc->stats->rx);
++			atomic_inc_unchecked(&vcc->stats->rx);
+ 			cell += ATM_CELL_PAYLOAD;
+ 		}
+ 
+@@ -2071,7 +2071,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 			if (iovb == NULL) {
+ 				printk("nicstar%d: Out of iovec buffers.\n",
+ 				       card->index);
+-				atomic_inc(&vcc->stats->rx_drop);
++				atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 				recycle_rx_buf(card, skb);
+ 				return;
+ 			}
+@@ -2095,7 +2095,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 		   small or large buffer itself. */
+ 	} else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) {
+ 		printk("nicstar%d: received too big AAL5 SDU.\n", card->index);
+-		atomic_inc(&vcc->stats->rx_err);
++		atomic_inc_unchecked(&vcc->stats->rx_err);
+ 		recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
+ 				      NS_MAX_IOVECS);
+ 		NS_PRV_IOVCNT(iovb) = 0;
+@@ -2115,7 +2115,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 			    ("nicstar%d: Expected a small buffer, and this is not one.\n",
+ 			     card->index);
+ 			which_list(card, skb);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			recycle_rx_buf(card, skb);
+ 			vc->rx_iov = NULL;
+ 			recycle_iov_buf(card, iovb);
+@@ -2128,7 +2128,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 			    ("nicstar%d: Expected a large buffer, and this is not one.\n",
+ 			     card->index);
+ 			which_list(card, skb);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
+ 					      NS_PRV_IOVCNT(iovb));
+ 			vc->rx_iov = NULL;
+@@ -2151,7 +2151,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 				printk(" - PDU size mismatch.\n");
+ 			else
+ 				printk(".\n");
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data,
+ 					      NS_PRV_IOVCNT(iovb));
+ 			vc->rx_iov = NULL;
+@@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 			/* skb points to a small buffer */
+ 			if (!atm_charge(vcc, skb->truesize)) {
+ 				push_rxbufs(card, skb);
+-				atomic_inc(&vcc->stats->rx_drop);
++				atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 			} else {
+ 				skb_put(skb, len);
+ 				dequeue_sm_buf(card, skb);
+@@ -2175,7 +2175,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 				ATM_SKB(skb)->vcc = vcc;
+ 				__net_timestamp(skb);
+ 				vcc->push(vcc, skb);
+-				atomic_inc(&vcc->stats->rx);
++				atomic_inc_unchecked(&vcc->stats->rx);
+ 			}
+ 		} else if (NS_PRV_IOVCNT(iovb) == 2) {	/* One small plus one large buffer */
+ 			struct sk_buff *sb;
+@@ -2186,7 +2186,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 			if (len <= NS_SMBUFSIZE) {
+ 				if (!atm_charge(vcc, sb->truesize)) {
+ 					push_rxbufs(card, sb);
+-					atomic_inc(&vcc->stats->rx_drop);
++					atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 				} else {
+ 					skb_put(sb, len);
+ 					dequeue_sm_buf(card, sb);
+@@ -2196,7 +2196,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 					ATM_SKB(sb)->vcc = vcc;
+ 					__net_timestamp(sb);
+ 					vcc->push(vcc, sb);
+-					atomic_inc(&vcc->stats->rx);
++					atomic_inc_unchecked(&vcc->stats->rx);
+ 				}
+ 
+ 				push_rxbufs(card, skb);
+@@ -2205,7 +2205,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 
+ 				if (!atm_charge(vcc, skb->truesize)) {
+ 					push_rxbufs(card, skb);
+-					atomic_inc(&vcc->stats->rx_drop);
++					atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 				} else {
+ 					dequeue_lg_buf(card, skb);
+ #ifdef NS_USE_DESTRUCTORS
+@@ -2218,7 +2218,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 					ATM_SKB(skb)->vcc = vcc;
+ 					__net_timestamp(skb);
+ 					vcc->push(vcc, skb);
+-					atomic_inc(&vcc->stats->rx);
++					atomic_inc_unchecked(&vcc->stats->rx);
+ 				}
+ 
+ 				push_rxbufs(card, sb);
+@@ -2239,7 +2239,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 					printk
+ 					    ("nicstar%d: Out of huge buffers.\n",
+ 					     card->index);
+-					atomic_inc(&vcc->stats->rx_drop);
++					atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 					recycle_iovec_rx_bufs(card,
+ 							      (struct iovec *)
+ 							      iovb->data,
+@@ -2290,7 +2290,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ 					card->hbpool.count++;
+ 				} else
+ 					dev_kfree_skb_any(hb);
+-				atomic_inc(&vcc->stats->rx_drop);
++				atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 			} else {
+ 				/* Copy the small buffer to the huge buffer */
+ 				sb = (struct sk_buff *)iov->iov_base;
+@@ -2327,7 +2327,7 @@ static void dequeue_rx(ns_dev * card, ns_rsqe * rsqe)
+ #endif /* NS_USE_DESTRUCTORS */
+ 				__net_timestamp(hb);
+ 				vcc->push(vcc, hb);
+-				atomic_inc(&vcc->stats->rx);
++				atomic_inc_unchecked(&vcc->stats->rx);
+ 			}
+ 		}
+ 
+diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
+index e3fb496..d9646bf 100644
+--- a/drivers/atm/solos-pci.c
++++ b/drivers/atm/solos-pci.c
+@@ -838,7 +838,7 @@ void solos_bh(unsigned long card_arg)
+ 				}
+ 				atm_charge(vcc, skb->truesize);
+ 				vcc->push(vcc, skb);
+-				atomic_inc(&vcc->stats->rx);
++				atomic_inc_unchecked(&vcc->stats->rx);
+ 				break;
+ 
+ 			case PKT_STATUS:
+@@ -1116,7 +1116,7 @@ static uint32_t fpga_tx(struct solos_card *card)
+ 			vcc = SKB_CB(oldskb)->vcc;
+ 
+ 			if (vcc) {
+-				atomic_inc(&vcc->stats->tx);
++				atomic_inc_unchecked(&vcc->stats->tx);
+ 				solos_pop(vcc, oldskb);
+ 			} else {
+ 				dev_kfree_skb_irq(oldskb);
+diff --git a/drivers/atm/suni.c b/drivers/atm/suni.c
+index 0215934..ce9f5b1 100644
+--- a/drivers/atm/suni.c
++++ b/drivers/atm/suni.c
+@@ -49,8 +49,8 @@ static DEFINE_SPINLOCK(sunis_lock);
+ 
+ 
+ #define ADD_LIMITED(s,v) \
+-    atomic_add((v),&stats->s); \
+-    if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX);
++    atomic_add_unchecked((v),&stats->s); \
++    if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX);
+ 
+ 
+ static void suni_hz(unsigned long from_timer)
+diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
+index 5120a96..e2572bd 100644
+--- a/drivers/atm/uPD98402.c
++++ b/drivers/atm/uPD98402.c
+@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int ze
+ 	struct sonet_stats tmp;
+  	int error = 0;
+ 
+-	atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
++	atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
+ 	sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
+ 	if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
+ 	if (zero && !error) {
+@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
+ 
+ 
+ #define ADD_LIMITED(s,v) \
+-    { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
+-    if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
+-	atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
++    { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \
++    if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \
++	atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); }
+ 
+ 
+ static void stat_event(struct atm_dev *dev)
+@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev *dev)
+ 		if (reason & uPD98402_INT_PFM) stat_event(dev);
+ 		if (reason & uPD98402_INT_PCO) {
+ 			(void) GET(PCOCR); /* clear interrupt cause */
+-			atomic_add(GET(HECCT),
++			atomic_add_unchecked(GET(HECCT),
+ 			    &PRIV(dev)->sonet_stats.uncorr_hcs);
+ 		}
+ 		if ((reason & uPD98402_INT_RFO) && 
+@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev *dev)
+ 	PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
+ 	  uPD98402_INT_LOS),PIMR); /* enable them */
+ 	(void) fetch_stats(dev,NULL,1); /* clear kernel counters */
+-	atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
+-	atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
+-	atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
++	atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1);
++	atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1);
++	atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1);
+ 	return 0;
+ }
+ 
+diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
+index 969c3c2..9b72956 100644
+--- a/drivers/atm/zatm.c
++++ b/drivers/atm/zatm.c
+@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
+ 		}
+ 		if (!size) {
+ 			dev_kfree_skb_irq(skb);
+-			if (vcc) atomic_inc(&vcc->stats->rx_err);
++			if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			continue;
+ 		}
+ 		if (!atm_charge(vcc,skb->truesize)) {
+@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
+ 		skb->len = size;
+ 		ATM_SKB(skb)->vcc = vcc;
+ 		vcc->push(vcc,skb);
+-		atomic_inc(&vcc->stats->rx);
++		atomic_inc_unchecked(&vcc->stats->rx);
+ 	}
+ 	zout(pos & 0xffff,MTA(mbx));
+ #if 0 /* probably a stupid idea */
+@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
+ 			skb_queue_head(&zatm_vcc->backlog,skb);
+ 			break;
+ 		}
+-	atomic_inc(&vcc->stats->tx);
++	atomic_inc_unchecked(&vcc->stats->tx);
+ 	wake_up(&zatm_vcc->tx_wait);
+ }
+ 
+diff --git a/drivers/base/bus.c b/drivers/base/bus.c
+index 12b39dc..c244bbd 100644
+--- a/drivers/base/bus.c
++++ b/drivers/base/bus.c
+@@ -1126,7 +1126,7 @@ int subsys_interface_register(struct subsys_interface *sif)
+ 		return -EINVAL;
+ 
+ 	mutex_lock(&subsys->p->mutex);
+-	list_add_tail(&sif->node, &subsys->p->interfaces);
++	pax_list_add_tail((struct list_head *)&sif->node, &subsys->p->interfaces);
+ 	if (sif->add_dev) {
+ 		subsys_dev_iter_init(&iter, subsys, NULL, NULL);
+ 		while ((dev = subsys_dev_iter_next(&iter)))
+@@ -1151,7 +1151,7 @@ void subsys_interface_unregister(struct subsys_interface *sif)
+ 	subsys = sif->subsys;
+ 
+ 	mutex_lock(&subsys->p->mutex);
+-	list_del_init(&sif->node);
++	pax_list_del_init((struct list_head *)&sif->node);
+ 	if (sif->remove_dev) {
+ 		subsys_dev_iter_init(&iter, subsys, NULL, NULL);
+ 		while ((dev = subsys_dev_iter_next(&iter)))
+diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
+index 25798db..15f130e 100644
+--- a/drivers/base/devtmpfs.c
++++ b/drivers/base/devtmpfs.c
+@@ -354,7 +354,7 @@ int devtmpfs_mount(const char *mntdir)
+ 	if (!thread)
+ 		return 0;
+ 
+-	err = sys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT, NULL);
++	err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)mntdir, (char __force_user *)"devtmpfs", MS_SILENT, NULL);
+ 	if (err)
+ 		printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
+ 	else
+@@ -380,11 +380,11 @@ static int devtmpfsd(void *p)
+ 	*err = sys_unshare(CLONE_NEWNS);
+ 	if (*err)
+ 		goto out;
+-	*err = sys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);
++	*err = sys_mount((char __force_user *)"devtmpfs", (char __force_user *)"/", (char __force_user *)"devtmpfs", MS_SILENT, (char __force_user *)options);
+ 	if (*err)
+ 		goto out;
+-	sys_chdir("/.."); /* will traverse into overmounted root */
+-	sys_chroot(".");
++	sys_chdir((char __force_user *)"/.."); /* will traverse into overmounted root */
++	sys_chroot((char __force_user *)".");
+ 	complete(&setup_done);
+ 	while (1) {
+ 		spin_lock(&req_lock);
+diff --git a/drivers/base/node.c b/drivers/base/node.c
+index bc9f43b..29703b8 100644
+--- a/drivers/base/node.c
++++ b/drivers/base/node.c
+@@ -620,7 +620,7 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
+ struct node_attr {
+ 	struct device_attribute attr;
+ 	enum node_states state;
+-};
++} __do_const;
+ 
+ static ssize_t show_node_state(struct device *dev,
+ 			       struct device_attribute *attr, char *buf)
+diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
+index bfb8955..4ebff34 100644
+--- a/drivers/base/power/domain.c
++++ b/drivers/base/power/domain.c
+@@ -1809,9 +1809,9 @@ int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
+ 
+ 	if (dev->power.subsys_data->domain_data) {
+ 		gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
+-		gpd_data->ops = (struct gpd_dev_ops){ NULL };
++		memset(&gpd_data->ops, 0, sizeof(gpd_data->ops));
+ 		if (clear_td)
+-			gpd_data->td = (struct gpd_timing_data){ 0 };
++			memset(&gpd_data->td, 0, sizeof(gpd_data->td));
+ 
+ 		if (--gpd_data->refcount == 0) {
+ 			dev->power.subsys_data->domain_data = NULL;
+@@ -1850,7 +1850,7 @@ int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state)
+ {
+ 	struct cpuidle_driver *cpuidle_drv;
+ 	struct gpd_cpu_data *cpu_data;
+-	struct cpuidle_state *idle_state;
++	cpuidle_state_no_const *idle_state;
+ 	int ret = 0;
+ 
+ 	if (IS_ERR_OR_NULL(genpd) || state < 0)
+@@ -1918,7 +1918,7 @@ int pm_genpd_name_attach_cpuidle(const char *name, int state)
+ int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+ {
+ 	struct gpd_cpu_data *cpu_data;
+-	struct cpuidle_state *idle_state;
++	cpuidle_state_no_const *idle_state;
+ 	int ret = 0;
+ 
+ 	if (IS_ERR_OR_NULL(genpd))
+diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
+index 03e089a..0e9560c 100644
+--- a/drivers/base/power/sysfs.c
++++ b/drivers/base/power/sysfs.c
+@@ -185,7 +185,7 @@ static ssize_t rtpm_status_show(struct device *dev,
+ 			return -EIO;
+ 		}
+ 	}
+-	return sprintf(buf, p);
++	return sprintf(buf, "%s", p);
+ }
+ 
+ static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
+diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
+index 2d56f41..8830f19 100644
+--- a/drivers/base/power/wakeup.c
++++ b/drivers/base/power/wakeup.c
+@@ -29,14 +29,14 @@ bool events_check_enabled __read_mostly;
+  * They need to be modified together atomically, so it's better to use one
+  * atomic variable to hold them both.
+  */
+-static atomic_t combined_event_count = ATOMIC_INIT(0);
++static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0);
+ 
+ #define IN_PROGRESS_BITS	(sizeof(int) * 4)
+ #define MAX_IN_PROGRESS		((1 << IN_PROGRESS_BITS) - 1)
+ 
+ static void split_counters(unsigned int *cnt, unsigned int *inpr)
+ {
+-	unsigned int comb = atomic_read(&combined_event_count);
++	unsigned int comb = atomic_read_unchecked(&combined_event_count);
+ 
+ 	*cnt = (comb >> IN_PROGRESS_BITS);
+ 	*inpr = comb & MAX_IN_PROGRESS;
+@@ -395,7 +395,7 @@ static void wakeup_source_activate(struct wakeup_source *ws)
+ 		ws->start_prevent_time = ws->last_time;
+ 
+ 	/* Increment the counter of events in progress. */
+-	cec = atomic_inc_return(&combined_event_count);
++	cec = atomic_inc_return_unchecked(&combined_event_count);
+ 
+ 	trace_wakeup_source_activate(ws->name, cec);
+ }
+@@ -521,7 +521,7 @@ static void wakeup_source_deactivate(struct wakeup_source *ws)
+ 	 * Increment the counter of registered wakeup events and decrement the
+ 	 * couter of wakeup events in progress simultaneously.
+ 	 */
+-	cec = atomic_add_return(MAX_IN_PROGRESS, &combined_event_count);
++	cec = atomic_add_return_unchecked(MAX_IN_PROGRESS, &combined_event_count);
+ 	trace_wakeup_source_deactivate(ws->name, cec);
+ 
+ 	split_counters(&cnt, &inpr);
+diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c
+index e8d11b6..7b1b36f 100644
+--- a/drivers/base/syscore.c
++++ b/drivers/base/syscore.c
+@@ -21,7 +21,7 @@ static DEFINE_MUTEX(syscore_ops_lock);
+ void register_syscore_ops(struct syscore_ops *ops)
+ {
+ 	mutex_lock(&syscore_ops_lock);
+-	list_add_tail(&ops->node, &syscore_ops_list);
++	pax_list_add_tail((struct list_head *)&ops->node, &syscore_ops_list);
+ 	mutex_unlock(&syscore_ops_lock);
+ }
+ EXPORT_SYMBOL_GPL(register_syscore_ops);
+@@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(register_syscore_ops);
+ void unregister_syscore_ops(struct syscore_ops *ops)
+ {
+ 	mutex_lock(&syscore_ops_lock);
+-	list_del(&ops->node);
++	pax_list_del((struct list_head *)&ops->node);
+ 	mutex_unlock(&syscore_ops_lock);
+ }
+ EXPORT_SYMBOL_GPL(unregister_syscore_ops);
+diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
+index 036e8ab..6221dec 100644
+--- a/drivers/block/cciss.c
++++ b/drivers/block/cciss.c
+@@ -3011,7 +3011,7 @@ static void start_io(ctlr_info_t *h)
+ 	while (!list_empty(&h->reqQ)) {
+ 		c = list_entry(h->reqQ.next, CommandList_struct, list);
+ 		/* can't do anything if fifo is full */
+-		if ((h->access.fifo_full(h))) {
++		if ((h->access->fifo_full(h))) {
+ 			dev_warn(&h->pdev->dev, "fifo full\n");
+ 			break;
+ 		}
+@@ -3021,7 +3021,7 @@ static void start_io(ctlr_info_t *h)
+ 		h->Qdepth--;
+ 
+ 		/* Tell the controller execute command */
+-		h->access.submit_command(h, c);
++		h->access->submit_command(h, c);
+ 
+ 		/* Put job onto the completed Q */
+ 		addQ(&h->cmpQ, c);
+@@ -3447,17 +3447,17 @@ startio:
+ 
+ static inline unsigned long get_next_completion(ctlr_info_t *h)
+ {
+-	return h->access.command_completed(h);
++	return h->access->command_completed(h);
+ }
+ 
+ static inline int interrupt_pending(ctlr_info_t *h)
+ {
+-	return h->access.intr_pending(h);
++	return h->access->intr_pending(h);
+ }
+ 
+ static inline long interrupt_not_for_us(ctlr_info_t *h)
+ {
+-	return ((h->access.intr_pending(h) == 0) ||
++	return ((h->access->intr_pending(h) == 0) ||
+ 		(h->interrupts_enabled == 0));
+ }
+ 
+@@ -3490,7 +3490,7 @@ static inline u32 next_command(ctlr_info_t *h)
+ 	u32 a;
+ 
+ 	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
+-		return h->access.command_completed(h);
++		return h->access->command_completed(h);
+ 
+ 	if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) {
+ 		a = *(h->reply_pool_head); /* Next cmd in ring buffer */
+@@ -4047,7 +4047,7 @@ static void cciss_put_controller_into_performant_mode(ctlr_info_t *h)
+ 		trans_support & CFGTBL_Trans_use_short_tags);
+ 
+ 	/* Change the access methods to the performant access methods */
+-	h->access = SA5_performant_access;
++	h->access = &SA5_performant_access;
+ 	h->transMethod = CFGTBL_Trans_Performant;
+ 
+ 	return;
+@@ -4327,7 +4327,7 @@ static int cciss_pci_init(ctlr_info_t *h)
+ 	if (prod_index < 0)
+ 		return -ENODEV;
+ 	h->product_name = products[prod_index].product_name;
+-	h->access = *(products[prod_index].access);
++	h->access = products[prod_index].access;
+ 
+ 	if (cciss_board_disabled(h)) {
+ 		dev_warn(&h->pdev->dev, "controller appears to be disabled\n");
+@@ -5059,7 +5059,7 @@ reinit_after_soft_reset:
+ 	}
+ 
+ 	/* make sure the board interrupts are off */
+-	h->access.set_intr_mask(h, CCISS_INTR_OFF);
++	h->access->set_intr_mask(h, CCISS_INTR_OFF);
+ 	rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx);
+ 	if (rc)
+ 		goto clean2;
+@@ -5109,7 +5109,7 @@ reinit_after_soft_reset:
+ 		 * fake ones to scoop up any residual completions.
+ 		 */
+ 		spin_lock_irqsave(&h->lock, flags);
+-		h->access.set_intr_mask(h, CCISS_INTR_OFF);
++		h->access->set_intr_mask(h, CCISS_INTR_OFF);
+ 		spin_unlock_irqrestore(&h->lock, flags);
+ 		free_irq(h->intr[h->intr_mode], h);
+ 		rc = cciss_request_irq(h, cciss_msix_discard_completions,
+@@ -5129,9 +5129,9 @@ reinit_after_soft_reset:
+ 		dev_info(&h->pdev->dev, "Board READY.\n");
+ 		dev_info(&h->pdev->dev,
+ 			"Waiting for stale completions to drain.\n");
+-		h->access.set_intr_mask(h, CCISS_INTR_ON);
++		h->access->set_intr_mask(h, CCISS_INTR_ON);
+ 		msleep(10000);
+-		h->access.set_intr_mask(h, CCISS_INTR_OFF);
++		h->access->set_intr_mask(h, CCISS_INTR_OFF);
+ 
+ 		rc = controller_reset_failed(h->cfgtable);
+ 		if (rc)
+@@ -5154,7 +5154,7 @@ reinit_after_soft_reset:
+ 	cciss_scsi_setup(h);
+ 
+ 	/* Turn the interrupts on so we can service requests */
+-	h->access.set_intr_mask(h, CCISS_INTR_ON);
++	h->access->set_intr_mask(h, CCISS_INTR_ON);
+ 
+ 	/* Get the firmware version */
+ 	inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL);
+@@ -5226,7 +5226,7 @@ static void cciss_shutdown(struct pci_dev *pdev)
+ 	kfree(flush_buf);
+ 	if (return_code != IO_OK)
+ 		dev_warn(&h->pdev->dev, "Error flushing cache\n");
+-	h->access.set_intr_mask(h, CCISS_INTR_OFF);
++	h->access->set_intr_mask(h, CCISS_INTR_OFF);
+ 	free_irq(h->intr[h->intr_mode], h);
+ }
+ 
+diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h
+index 7fda30e..2f27946 100644
+--- a/drivers/block/cciss.h
++++ b/drivers/block/cciss.h
+@@ -101,7 +101,7 @@ struct ctlr_info
+ 	/* information about each logical volume */
+ 	drive_info_struct *drv[CISS_MAX_LUN];
+ 
+-	struct access_method access;
++	struct access_method *access;
+ 
+ 	/* queue and queue Info */ 
+ 	struct list_head reqQ;
+@@ -402,27 +402,27 @@ static bool SA5_performant_intr_pending(ctlr_info_t *h)
+ }
+ 
+ static struct access_method SA5_access = {
+-	SA5_submit_command,
+-	SA5_intr_mask,
+-	SA5_fifo_full,
+-	SA5_intr_pending,
+-	SA5_completed,
++	.submit_command = SA5_submit_command,
++	.set_intr_mask = SA5_intr_mask,
++	.fifo_full = SA5_fifo_full,
++	.intr_pending = SA5_intr_pending,
++	.command_completed = SA5_completed,
+ };
+ 
+ static struct access_method SA5B_access = {
+-        SA5_submit_command,
+-        SA5B_intr_mask,
+-        SA5_fifo_full,
+-        SA5B_intr_pending,
+-        SA5_completed,
++	.submit_command = SA5_submit_command,
++	.set_intr_mask = SA5B_intr_mask,
++	.fifo_full = SA5_fifo_full,
++	.intr_pending = SA5B_intr_pending,
++	.command_completed = SA5_completed,
+ };
+ 
+ static struct access_method SA5_performant_access = {
+-	SA5_submit_command,
+-	SA5_performant_intr_mask,
+-	SA5_fifo_full,
+-	SA5_performant_intr_pending,
+-	SA5_performant_completed,
++	.submit_command = SA5_submit_command,
++	.set_intr_mask = SA5_performant_intr_mask,
++	.fifo_full = SA5_fifo_full,
++	.intr_pending = SA5_performant_intr_pending,
++	.command_completed = SA5_performant_completed,
+ };
+ 
+ struct board_type {
+diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
+index 2b94403..fd6ad1f 100644
+--- a/drivers/block/cpqarray.c
++++ b/drivers/block/cpqarray.c
+@@ -404,7 +404,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
+ 	if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) {
+ 		goto Enomem4;
+ 	}
+-	hba[i]->access.set_intr_mask(hba[i], 0);
++	hba[i]->access->set_intr_mask(hba[i], 0);
+ 	if (request_irq(hba[i]->intr, do_ida_intr,
+ 		IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i]))
+ 	{
+@@ -459,7 +459,7 @@ static int cpqarray_register_ctlr(int i, struct pci_dev *pdev)
+ 	add_timer(&hba[i]->timer);
+ 
+ 	/* Enable IRQ now that spinlock and rate limit timer are set up */
+-	hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY);
++	hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY);
+ 
+ 	for(j=0; j<NWD; j++) {
+ 		struct gendisk *disk = ida_gendisk[i][j];
+@@ -694,7 +694,7 @@ DBGINFO(
+ 	for(i=0; i<NR_PRODUCTS; i++) {
+ 		if (board_id == products[i].board_id) {
+ 			c->product_name = products[i].product_name;
+-			c->access = *(products[i].access);
++			c->access = products[i].access;
+ 			break;
+ 		}
+ 	}
+@@ -792,7 +792,7 @@ static int cpqarray_eisa_detect(void)
+ 		hba[ctlr]->intr = intr;
+ 		sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr);
+ 		hba[ctlr]->product_name = products[j].product_name;
+-		hba[ctlr]->access = *(products[j].access);
++		hba[ctlr]->access = products[j].access;
+ 		hba[ctlr]->ctlr = ctlr;
+ 		hba[ctlr]->board_id = board_id;
+ 		hba[ctlr]->pci_dev = NULL; /* not PCI */
+@@ -978,7 +978,7 @@ static void start_io(ctlr_info_t *h)
+ 
+ 	while((c = h->reqQ) != NULL) {
+ 		/* Can't do anything if we're busy */
+-		if (h->access.fifo_full(h) == 0)
++		if (h->access->fifo_full(h) == 0)
+ 			return;
+ 
+ 		/* Get the first entry from the request Q */
+@@ -986,7 +986,7 @@ static void start_io(ctlr_info_t *h)
+ 		h->Qdepth--;
+ 	
+ 		/* Tell the controller to do our bidding */
+-		h->access.submit_command(h, c);
++		h->access->submit_command(h, c);
+ 
+ 		/* Get onto the completion Q */
+ 		addQ(&h->cmpQ, c);
+@@ -1048,7 +1048,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
+ 	unsigned long flags;
+ 	__u32 a,a1;
+ 
+-	istat = h->access.intr_pending(h);
++	istat = h->access->intr_pending(h);
+ 	/* Is this interrupt for us? */
+ 	if (istat == 0)
+ 		return IRQ_NONE;
+@@ -1059,7 +1059,7 @@ static irqreturn_t do_ida_intr(int irq, void *dev_id)
+ 	 */
+ 	spin_lock_irqsave(IDA_LOCK(h->ctlr), flags);
+ 	if (istat & FIFO_NOT_EMPTY) {
+-		while((a = h->access.command_completed(h))) {
++		while((a = h->access->command_completed(h))) {
+ 			a1 = a; a &= ~3;
+ 			if ((c = h->cmpQ) == NULL)
+ 			{  
+@@ -1448,11 +1448,11 @@ static int sendcmd(
+ 	/*
+ 	 * Disable interrupt
+ 	 */
+-	info_p->access.set_intr_mask(info_p, 0);
++	info_p->access->set_intr_mask(info_p, 0);
+ 	/* Make sure there is room in the command FIFO */
+ 	/* Actually it should be completely empty at this time. */
+ 	for (i = 200000; i > 0; i--) {
+-		temp = info_p->access.fifo_full(info_p);
++		temp = info_p->access->fifo_full(info_p);
+ 		if (temp != 0) {
+ 			break;
+ 		}
+@@ -1465,7 +1465,7 @@ DBG(
+ 	/*
+ 	 * Send the cmd
+ 	 */
+-	info_p->access.submit_command(info_p, c);
++	info_p->access->submit_command(info_p, c);
+ 	complete = pollcomplete(ctlr);
+ 	
+ 	pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr, 
+@@ -1548,9 +1548,9 @@ static int revalidate_allvol(ctlr_info_t *host)
+ 	 * we check the new geometry.  Then turn interrupts back on when
+ 	 * we're done.
+ 	 */
+-	host->access.set_intr_mask(host, 0);
++	host->access->set_intr_mask(host, 0);
+ 	getgeometry(ctlr);
+-	host->access.set_intr_mask(host, FIFO_NOT_EMPTY);
++	host->access->set_intr_mask(host, FIFO_NOT_EMPTY);
+ 
+ 	for(i=0; i<NWD; i++) {
+ 		struct gendisk *disk = ida_gendisk[ctlr][i];
+@@ -1590,7 +1590,7 @@ static int pollcomplete(int ctlr)
+ 	/* Wait (up to 2 seconds) for a command to complete */
+ 
+ 	for (i = 200000; i > 0; i--) {
+-		done = hba[ctlr]->access.command_completed(hba[ctlr]);
++		done = hba[ctlr]->access->command_completed(hba[ctlr]);
+ 		if (done == 0) {
+ 			udelay(10);	/* a short fixed delay */
+ 		} else
+diff --git a/drivers/block/cpqarray.h b/drivers/block/cpqarray.h
+index be73e9d..7fbf140 100644
+--- a/drivers/block/cpqarray.h
++++ b/drivers/block/cpqarray.h
+@@ -99,7 +99,7 @@ struct ctlr_info {
+ 	drv_info_t	drv[NWD];
+ 	struct proc_dir_entry *proc;
+ 
+-	struct access_method access;
++	struct access_method *access;
+ 
+ 	cmdlist_t *reqQ;
+ 	cmdlist_t *cmpQ;
+diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
+index 597f111..c700970 100644
+--- a/drivers/block/drbd/drbd_bitmap.c
++++ b/drivers/block/drbd/drbd_bitmap.c
+@@ -1042,7 +1042,7 @@ static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must
+ 		submit_bio(rw, bio);
+ 		/* this should not count as user activity and cause the
+ 		 * resync to throttle -- see drbd_rs_should_slow_down(). */
+-		atomic_add(len >> 9, &mdev->rs_sect_ev);
++		atomic_add_unchecked(len >> 9, &mdev->rs_sect_ev);
+ 	}
+ }
+ 
+diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
+index 0e06f0c..d98cde3 100644
+--- a/drivers/block/drbd/drbd_int.h
++++ b/drivers/block/drbd/drbd_int.h
+@@ -582,7 +582,7 @@ struct drbd_epoch {
+ 	struct drbd_tconn *tconn;
+ 	struct list_head list;
+ 	unsigned int barrier_nr;
+-	atomic_t epoch_size; /* increased on every request added. */
++	atomic_unchecked_t epoch_size; /* increased on every request added. */
+ 	atomic_t active;     /* increased on every req. added, and dec on every finished. */
+ 	unsigned long flags;
+ };
+@@ -1022,7 +1022,7 @@ struct drbd_conf {
+ 	unsigned int al_tr_number;
+ 	int al_tr_cycle;
+ 	wait_queue_head_t seq_wait;
+-	atomic_t packet_seq;
++	atomic_unchecked_t packet_seq;
+ 	unsigned int peer_seq;
+ 	spinlock_t peer_seq_lock;
+ 	unsigned int minor;
+@@ -1032,8 +1032,8 @@ struct drbd_conf {
+ 	struct mutex own_state_mutex;
+ 	struct mutex *state_mutex; /* either own_state_mutex or mdev->tconn->cstate_mutex */
+ 	char congestion_reason;  /* Why we where congested... */
+-	atomic_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
+-	atomic_t rs_sect_ev; /* for submitted resync data rate, both */
++	atomic_unchecked_t rs_sect_in; /* for incoming resync data rate, SyncTarget */
++	atomic_unchecked_t rs_sect_ev; /* for submitted resync data rate, both */
+ 	int rs_last_sect_ev; /* counter to compare with */
+ 	int rs_last_events;  /* counter of read or write "events" (unit sectors)
+ 			      * on the lower level device when we last looked. */
+@@ -1573,7 +1573,7 @@ static inline int drbd_setsockopt(struct socket *sock, int level, int optname,
+ 	char __user *uoptval;
+ 	int err;
+ 
+-	uoptval = (char __user __force *)optval;
++	uoptval = (char __force_user *)optval;
+ 
+ 	set_fs(KERNEL_DS);
+ 	if (level == SOL_SOCKET)
+diff --git a/drivers/block/drbd/drbd_interval.c b/drivers/block/drbd/drbd_interval.c
+index 04a14e0..5b8f0aa 100644
+--- a/drivers/block/drbd/drbd_interval.c
++++ b/drivers/block/drbd/drbd_interval.c
+@@ -67,9 +67,9 @@ static void augment_rotate(struct rb_node *rb_old, struct rb_node *rb_new)
+ }
+ 
+ static const struct rb_augment_callbacks augment_callbacks = {
+-	augment_propagate,
+-	augment_copy,
+-	augment_rotate,
++	.propagate = augment_propagate,
++	.copy = augment_copy,
++	.rotate = augment_rotate,
+ };
+ 
+ /**
+diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
+index 929468e..efb12f0 100644
+--- a/drivers/block/drbd/drbd_main.c
++++ b/drivers/block/drbd/drbd_main.c
+@@ -1317,7 +1317,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packet cmd,
+ 	p->sector = sector;
+ 	p->block_id = block_id;
+ 	p->blksize = blksize;
+-	p->seq_num = cpu_to_be32(atomic_inc_return(&mdev->packet_seq));
++	p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&mdev->packet_seq));
+ 	return drbd_send_command(mdev, sock, cmd, sizeof(*p), NULL, 0);
+ }
+ 
+@@ -1622,7 +1622,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
+ 		return -EIO;
+ 	p->sector = cpu_to_be64(req->i.sector);
+ 	p->block_id = (unsigned long)req;
+-	p->seq_num = cpu_to_be32(atomic_inc_return(&mdev->packet_seq));
++	p->seq_num = cpu_to_be32(atomic_inc_return_unchecked(&mdev->packet_seq));
+ 	dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw);
+ 	if (mdev->state.conn >= C_SYNC_SOURCE &&
+ 	    mdev->state.conn <= C_PAUSED_SYNC_T)
+@@ -1886,8 +1886,8 @@ void drbd_init_set_defaults(struct drbd_conf *mdev)
+ 	atomic_set(&mdev->unacked_cnt, 0);
+ 	atomic_set(&mdev->local_cnt, 0);
+ 	atomic_set(&mdev->pp_in_use_by_net, 0);
+-	atomic_set(&mdev->rs_sect_in, 0);
+-	atomic_set(&mdev->rs_sect_ev, 0);
++	atomic_set_unchecked(&mdev->rs_sect_in, 0);
++	atomic_set_unchecked(&mdev->rs_sect_ev, 0);
+ 	atomic_set(&mdev->ap_in_flight, 0);
+ 	atomic_set(&mdev->md_io_in_use, 0);
+ 
+@@ -2577,8 +2577,8 @@ void conn_destroy(struct kref *kref)
+ {
+ 	struct drbd_tconn *tconn = container_of(kref, struct drbd_tconn, kref);
+ 
+-	if (atomic_read(&tconn->current_epoch->epoch_size) !=  0)
+-		conn_err(tconn, "epoch_size:%d\n", atomic_read(&tconn->current_epoch->epoch_size));
++	if (atomic_read_unchecked(&tconn->current_epoch->epoch_size) !=  0)
++		conn_err(tconn, "epoch_size:%d\n", atomic_read_unchecked(&tconn->current_epoch->epoch_size));
+ 	kfree(tconn->current_epoch);
+ 
+ 	idr_destroy(&tconn->volumes);
+diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
+index 8c16c2f..3274b96 100644
+--- a/drivers/block/drbd/drbd_nl.c
++++ b/drivers/block/drbd/drbd_nl.c
+@@ -3446,7 +3446,7 @@ out:
+ 
+ void drbd_bcast_event(struct drbd_conf *mdev, const struct sib_info *sib)
+ {
+-	static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
++	static atomic_unchecked_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
+ 	struct sk_buff *msg;
+ 	struct drbd_genlmsghdr *d_out;
+ 	unsigned seq;
+@@ -3459,7 +3459,7 @@ void drbd_bcast_event(struct drbd_conf *mdev, const struct sib_info *sib)
+ 			return;
+ 	}
+ 
+-	seq = atomic_inc_return(&drbd_genl_seq);
++	seq = atomic_inc_return_unchecked(&drbd_genl_seq);
+ 	msg = genlmsg_new(NLMSG_GOODSIZE, GFP_NOIO);
+ 	if (!msg)
+ 		goto failed;
+diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
+index d073305..958be8f 100644
+--- a/drivers/block/drbd/drbd_receiver.c
++++ b/drivers/block/drbd/drbd_receiver.c
+@@ -834,7 +834,7 @@ int drbd_connected(struct drbd_conf *mdev)
+ {
+ 	int err;
+ 
+-	atomic_set(&mdev->packet_seq, 0);
++	atomic_set_unchecked(&mdev->packet_seq, 0);
+ 	mdev->peer_seq = 0;
+ 
+ 	mdev->state_mutex = mdev->tconn->agreed_pro_version < 100 ?
+@@ -1193,7 +1193,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_tconn *tconn,
+ 	do {
+ 		next_epoch = NULL;
+ 
+-		epoch_size = atomic_read(&epoch->epoch_size);
++		epoch_size = atomic_read_unchecked(&epoch->epoch_size);
+ 
+ 		switch (ev & ~EV_CLEANUP) {
+ 		case EV_PUT:
+@@ -1233,7 +1233,7 @@ static enum finish_epoch drbd_may_finish_epoch(struct drbd_tconn *tconn,
+ 					rv = FE_DESTROYED;
+ 			} else {
+ 				epoch->flags = 0;
+-				atomic_set(&epoch->epoch_size, 0);
++				atomic_set_unchecked(&epoch->epoch_size, 0);
+ 				/* atomic_set(&epoch->active, 0); is already zero */
+ 				if (rv == FE_STILL_LIVE)
+ 					rv = FE_RECYCLED;
+@@ -1451,7 +1451,7 @@ static int receive_Barrier(struct drbd_tconn *tconn, struct packet_info *pi)
+ 		conn_wait_active_ee_empty(tconn);
+ 		drbd_flush(tconn);
+ 
+-		if (atomic_read(&tconn->current_epoch->epoch_size)) {
++		if (atomic_read_unchecked(&tconn->current_epoch->epoch_size)) {
+ 			epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO);
+ 			if (epoch)
+ 				break;
+@@ -1464,11 +1464,11 @@ static int receive_Barrier(struct drbd_tconn *tconn, struct packet_info *pi)
+ 	}
+ 
+ 	epoch->flags = 0;
+-	atomic_set(&epoch->epoch_size, 0);
++	atomic_set_unchecked(&epoch->epoch_size, 0);
+ 	atomic_set(&epoch->active, 0);
+ 
+ 	spin_lock(&tconn->epoch_lock);
+-	if (atomic_read(&tconn->current_epoch->epoch_size)) {
++	if (atomic_read_unchecked(&tconn->current_epoch->epoch_size)) {
+ 		list_add(&epoch->list, &tconn->current_epoch->list);
+ 		tconn->current_epoch = epoch;
+ 		tconn->epochs++;
+@@ -1688,7 +1688,7 @@ static int recv_resync_read(struct drbd_conf *mdev, sector_t sector, int data_si
+ 	list_add(&peer_req->w.list, &mdev->sync_ee);
+ 	spin_unlock_irq(&mdev->tconn->req_lock);
+ 
+-	atomic_add(data_size >> 9, &mdev->rs_sect_ev);
++	atomic_add_unchecked(data_size >> 9, &mdev->rs_sect_ev);
+ 	if (drbd_submit_peer_request(mdev, peer_req, WRITE, DRBD_FAULT_RS_WR) == 0)
+ 		return 0;
+ 
+@@ -1782,7 +1782,7 @@ static int receive_RSDataReply(struct drbd_tconn *tconn, struct packet_info *pi)
+ 		drbd_send_ack_dp(mdev, P_NEG_ACK, p, pi->size);
+ 	}
+ 
+-	atomic_add(pi->size >> 9, &mdev->rs_sect_in);
++	atomic_add_unchecked(pi->size >> 9, &mdev->rs_sect_in);
+ 
+ 	return err;
+ }
+@@ -2164,7 +2164,7 @@ static int receive_Data(struct drbd_tconn *tconn, struct packet_info *pi)
+ 
+ 		err = wait_for_and_update_peer_seq(mdev, peer_seq);
+ 		drbd_send_ack_dp(mdev, P_NEG_ACK, p, pi->size);
+-		atomic_inc(&tconn->current_epoch->epoch_size);
++		atomic_inc_unchecked(&tconn->current_epoch->epoch_size);
+ 		err2 = drbd_drain_block(mdev, pi->size);
+ 		if (!err)
+ 			err = err2;
+@@ -2198,7 +2198,7 @@ static int receive_Data(struct drbd_tconn *tconn, struct packet_info *pi)
+ 
+ 	spin_lock(&tconn->epoch_lock);
+ 	peer_req->epoch = tconn->current_epoch;
+-	atomic_inc(&peer_req->epoch->epoch_size);
++	atomic_inc_unchecked(&peer_req->epoch->epoch_size);
+ 	atomic_inc(&peer_req->epoch->active);
+ 	spin_unlock(&tconn->epoch_lock);
+ 
+@@ -2326,7 +2326,7 @@ int drbd_rs_should_slow_down(struct drbd_conf *mdev, sector_t sector)
+ 
+ 	curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
+ 		      (int)part_stat_read(&disk->part0, sectors[1]) -
+-			atomic_read(&mdev->rs_sect_ev);
++			atomic_read_unchecked(&mdev->rs_sect_ev);
+ 
+ 	if (!mdev->rs_last_events || curr_events - mdev->rs_last_events > 64) {
+ 		unsigned long rs_left;
+@@ -2459,7 +2459,7 @@ static int receive_DataRequest(struct drbd_tconn *tconn, struct packet_info *pi)
+ 			mdev->bm_resync_fo = BM_SECT_TO_BIT(sector);
+ 		} else if (pi->cmd == P_OV_REPLY) {
+ 			/* track progress, we may need to throttle */
+-			atomic_add(size >> 9, &mdev->rs_sect_in);
++			atomic_add_unchecked(size >> 9, &mdev->rs_sect_in);
+ 			peer_req->w.cb = w_e_end_ov_reply;
+ 			dec_rs_pending(mdev);
+ 			/* drbd_rs_begin_io done when we sent this request,
+@@ -2520,7 +2520,7 @@ static int receive_DataRequest(struct drbd_tconn *tconn, struct packet_info *pi)
+ 		goto out_free_e;
+ 
+ submit_for_resync:
+-	atomic_add(size >> 9, &mdev->rs_sect_ev);
++	atomic_add_unchecked(size >> 9, &mdev->rs_sect_ev);
+ 
+ submit:
+ 	inc_unacked(mdev);
+@@ -4345,7 +4345,7 @@ struct data_cmd {
+ 	int expect_payload;
+ 	size_t pkt_size;
+ 	int (*fn)(struct drbd_tconn *, struct packet_info *);
+-};
++} __do_const;
+ 
+ static struct data_cmd drbd_cmd_handler[] = {
+ 	[P_DATA]	    = { 1, sizeof(struct p_data), receive_Data },
+@@ -4465,7 +4465,7 @@ static void conn_disconnect(struct drbd_tconn *tconn)
+ 	if (!list_empty(&tconn->current_epoch->list))
+ 		conn_err(tconn, "ASSERTION FAILED: tconn->current_epoch->list not empty\n");
+ 	/* ok, no more ee's on the fly, it is safe to reset the epoch_size */
+-	atomic_set(&tconn->current_epoch->epoch_size, 0);
++	atomic_set_unchecked(&tconn->current_epoch->epoch_size, 0);
+ 	tconn->send.seen_any_write_yet = false;
+ 
+ 	conn_info(tconn, "Connection closed\n");
+@@ -4947,7 +4947,7 @@ static int got_IsInSync(struct drbd_tconn *tconn, struct packet_info *pi)
+ 		put_ldev(mdev);
+ 	}
+ 	dec_rs_pending(mdev);
+-	atomic_add(blksize >> 9, &mdev->rs_sect_in);
++	atomic_add_unchecked(blksize >> 9, &mdev->rs_sect_in);
+ 
+ 	return 0;
+ }
+@@ -5221,7 +5221,7 @@ static int tconn_finish_peer_reqs(struct drbd_tconn *tconn)
+ struct asender_cmd {
+ 	size_t pkt_size;
+ 	int (*fn)(struct drbd_tconn *tconn, struct packet_info *);
+-};
++} __do_const;
+ 
+ static struct asender_cmd asender_tbl[] = {
+ 	[P_PING]	    = { 0, got_Ping },
+diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
+index 84d3175..ccea188 100644
+--- a/drivers/block/drbd/drbd_worker.c
++++ b/drivers/block/drbd/drbd_worker.c
+@@ -400,7 +400,7 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size)
+ 	list_add(&peer_req->w.list, &mdev->read_ee);
+ 	spin_unlock_irq(&mdev->tconn->req_lock);
+ 
+-	atomic_add(size >> 9, &mdev->rs_sect_ev);
++	atomic_add_unchecked(size >> 9, &mdev->rs_sect_ev);
+ 	if (drbd_submit_peer_request(mdev, peer_req, READ, DRBD_FAULT_RS_RD) == 0)
+ 		return 0;
+ 
+@@ -498,7 +498,7 @@ static int drbd_rs_controller(struct drbd_conf *mdev)
+ 	int max_sect;
+ 	struct fifo_buffer *plan;
+ 
+-	sect_in = atomic_xchg(&mdev->rs_sect_in, 0); /* Number of sectors that came in */
++	sect_in = atomic_xchg_unchecked(&mdev->rs_sect_in, 0); /* Number of sectors that came in */
+ 	mdev->rs_in_flight -= sect_in;
+ 
+ 	dc = rcu_dereference(mdev->ldev->disk_conf);
+@@ -1561,8 +1561,8 @@ void drbd_rs_controller_reset(struct drbd_conf *mdev)
+ {
+ 	struct fifo_buffer *plan;
+ 
+-	atomic_set(&mdev->rs_sect_in, 0);
+-	atomic_set(&mdev->rs_sect_ev, 0);
++	atomic_set_unchecked(&mdev->rs_sect_in, 0);
++	atomic_set_unchecked(&mdev->rs_sect_ev, 0);
+ 	mdev->rs_in_flight = 0;
+ 
+ 	/* Updating the RCU protected object in place is necessary since
+diff --git a/drivers/block/loop.c b/drivers/block/loop.c
+index 66e8c3b..9b68dd9 100644
+--- a/drivers/block/loop.c
++++ b/drivers/block/loop.c
+@@ -232,7 +232,7 @@ static int __do_lo_send_write(struct file *file,
+ 
+ 	file_start_write(file);
+ 	set_fs(get_ds());
+-	bw = file->f_op->write(file, buf, len, &pos);
++	bw = file->f_op->write(file, (const char __force_user *)buf, len, &pos);
+ 	set_fs(old_fs);
+ 	file_end_write(file);
+ 	if (likely(bw == len))
+diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
+index 091b9ea..f5428f8 100644
+--- a/drivers/block/null_blk.c
++++ b/drivers/block/null_blk.c
+@@ -382,15 +382,25 @@ static int null_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
+ 	return 0;
+ }
+ 
+-static struct blk_mq_ops null_mq_ops = {
+-	.queue_rq       = null_queue_rq,
+-	.map_queue      = blk_mq_map_queue,
++static struct blk_mq_ops null_mq_single_ops = {
++	.queue_rq	= null_queue_rq,
++	.map_queue	= blk_mq_map_queue,
+ 	.init_hctx	= null_init_hctx,
+ 	.complete	= null_softirq_done_fn,
++	.alloc_hctx	= blk_mq_alloc_single_hw_queue,
++	.free_hctx	= blk_mq_free_single_hw_queue,
++};
++
++static struct blk_mq_ops null_mq_per_node_ops = {
++	.queue_rq	= null_queue_rq,
++	.map_queue	= blk_mq_map_queue,
++	.init_hctx	= null_init_hctx,
++	.alloc_hctx	= null_alloc_hctx,
++	.free_hctx	= null_free_hctx,
+ };
+ 
+ static struct blk_mq_reg null_mq_reg = {
+-	.ops		= &null_mq_ops,
++	.ops		= &null_mq_single_ops,
+ 	.queue_depth	= 64,
+ 	.cmd_size	= sizeof(struct nullb_cmd),
+ 	.flags		= BLK_MQ_F_SHOULD_MERGE,
+@@ -521,13 +531,8 @@ static int null_add_dev(void)
+ 		null_mq_reg.queue_depth = hw_queue_depth;
+ 		null_mq_reg.nr_hw_queues = submit_queues;
+ 
+-		if (use_per_node_hctx) {
+-			null_mq_reg.ops->alloc_hctx = null_alloc_hctx;
+-			null_mq_reg.ops->free_hctx = null_free_hctx;
+-		} else {
+-			null_mq_reg.ops->alloc_hctx = blk_mq_alloc_single_hw_queue;
+-			null_mq_reg.ops->free_hctx = blk_mq_free_single_hw_queue;
+-		}
++		if (use_per_node_hctx)
++			null_mq_reg.ops = &null_mq_per_node_ops;
+ 
+ 		nullb->q = blk_mq_init_queue(&null_mq_reg, nullb);
+ 	} else if (queue_mode == NULL_Q_BIO) {
+diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
+index a2af73d..c0b8f61 100644
+--- a/drivers/block/pktcdvd.c
++++ b/drivers/block/pktcdvd.c
+@@ -108,7 +108,7 @@ static int pkt_seq_show(struct seq_file *m, void *p);
+ 
+ static sector_t get_zone(sector_t sector, struct pktcdvd_device *pd)
+ {
+-	return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1);
++	return (sector + pd->offset) & ~(sector_t)(pd->settings.size - 1UL);
+ }
+ 
+ /*
+@@ -1888,7 +1888,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
+ 		return -EROFS;
+ 	}
+ 	pd->settings.fp = ti.fp;
+-	pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1);
++	pd->offset = (be32_to_cpu(ti.track_start) << 2) & (pd->settings.size - 1UL);
+ 
+ 	if (ti.nwa_v) {
+ 		pd->nwa = be32_to_cpu(ti.next_writable);
+diff --git a/drivers/block/smart1,2.h b/drivers/block/smart1,2.h
+index e5565fb..71be10b4 100644
+--- a/drivers/block/smart1,2.h
++++ b/drivers/block/smart1,2.h
+@@ -108,11 +108,11 @@ static unsigned long smart4_intr_pending(ctlr_info_t *h)
+ }
+ 
+ static struct access_method smart4_access = {
+-	smart4_submit_command,
+-	smart4_intr_mask,
+-	smart4_fifo_full,
+-	smart4_intr_pending,
+-	smart4_completed,
++	.submit_command = smart4_submit_command,
++	.set_intr_mask = smart4_intr_mask,
++	.fifo_full = smart4_fifo_full,
++	.intr_pending = smart4_intr_pending,
++	.command_completed = smart4_completed,
+ };
+ 
+ /*
+@@ -144,11 +144,11 @@ static unsigned long smart2_intr_pending(ctlr_info_t *h)
+ }
+ 
+ static struct access_method smart2_access = {
+-	smart2_submit_command,
+-	smart2_intr_mask,
+-	smart2_fifo_full,
+-	smart2_intr_pending,
+-	smart2_completed,
++	.submit_command = smart2_submit_command,
++	.set_intr_mask = smart2_intr_mask,
++	.fifo_full = smart2_fifo_full,
++	.intr_pending = smart2_intr_pending,
++	.command_completed = smart2_completed,
+ };
+ 
+ /*
+@@ -180,11 +180,11 @@ static unsigned long smart2e_intr_pending(ctlr_info_t *h)
+ }
+ 
+ static struct access_method smart2e_access = {
+-	smart2e_submit_command,
+-	smart2e_intr_mask,
+-	smart2e_fifo_full,
+-	smart2e_intr_pending,
+-	smart2e_completed,
++	.submit_command = smart2e_submit_command,
++	.set_intr_mask = smart2e_intr_mask,
++	.fifo_full = smart2e_fifo_full,
++	.intr_pending = smart2e_intr_pending,
++	.command_completed = smart2e_completed,
+ };
+ 
+ /*
+@@ -270,9 +270,9 @@ static unsigned long smart1_intr_pending(ctlr_info_t *h)
+ }
+ 
+ static struct access_method smart1_access = {
+-	smart1_submit_command,
+-	smart1_intr_mask,
+-	smart1_fifo_full,
+-	smart1_intr_pending,
+-	smart1_completed,
++	.submit_command = smart1_submit_command,
++	.set_intr_mask = smart1_intr_mask,
++	.fifo_full = smart1_fifo_full,
++	.intr_pending = smart1_intr_pending,
++	.command_completed = smart1_completed,
+ };
+diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
+index f038dba..bb74c08 100644
+--- a/drivers/bluetooth/btwilink.c
++++ b/drivers/bluetooth/btwilink.c
+@@ -288,7 +288,7 @@ static int ti_st_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+ 
+ static int bt_ti_probe(struct platform_device *pdev)
+ {
+-	static struct ti_st *hst;
++	struct ti_st *hst;
+ 	struct hci_dev *hdev;
+ 	int err;
+ 
+diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
+index 8a3aff7..d7538c2 100644
+--- a/drivers/cdrom/cdrom.c
++++ b/drivers/cdrom/cdrom.c
+@@ -416,7 +416,6 @@ int register_cdrom(struct cdrom_device_info *cdi)
+ 	ENSURE(reset, CDC_RESET);
+ 	ENSURE(generic_packet, CDC_GENERIC_PACKET);
+ 	cdi->mc_flags = 0;
+-	cdo->n_minors = 0;
+         cdi->options = CDO_USE_FFLAGS;
+ 	
+ 	if (autoclose==1 && CDROM_CAN(CDC_CLOSE_TRAY))
+@@ -436,8 +435,11 @@ int register_cdrom(struct cdrom_device_info *cdi)
+ 	else
+ 		cdi->cdda_method = CDDA_OLD;
+ 
+-	if (!cdo->generic_packet)
+-		cdo->generic_packet = cdrom_dummy_generic_packet;
++	if (!cdo->generic_packet) {
++		pax_open_kernel();
++		*(void **)&cdo->generic_packet = cdrom_dummy_generic_packet;
++		pax_close_kernel();
++	}
+ 
+ 	cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
+ 	mutex_lock(&cdrom_mutex);
+@@ -458,7 +460,6 @@ void unregister_cdrom(struct cdrom_device_info *cdi)
+ 	if (cdi->exit)
+ 		cdi->exit(cdi);
+ 
+-	cdi->ops->n_minors--;
+ 	cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
+ }
+ 
+@@ -2107,7 +2108,7 @@ static int cdrom_read_cdda_old(struct cdrom_device_info *cdi, __u8 __user *ubuf,
+ 	 */
+ 	nr = nframes;
+ 	do {
+-		cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
++		cgc.buffer = kzalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
+ 		if (cgc.buffer)
+ 			break;
+ 
+@@ -3429,7 +3430,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
+ 	struct cdrom_device_info *cdi;
+ 	int ret;
+ 
+-	ret = scnprintf(info + *pos, max_size - *pos, header);
++	ret = scnprintf(info + *pos, max_size - *pos, "%s", header);
+ 	if (!ret)
+ 		return 1;
+ 
+diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
+index 51e75ad..39c4c76 100644
+--- a/drivers/cdrom/gdrom.c
++++ b/drivers/cdrom/gdrom.c
+@@ -491,7 +491,6 @@ static struct cdrom_device_ops gdrom_ops = {
+ 	.audio_ioctl		= gdrom_audio_ioctl,
+ 	.capability		= CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
+ 				  CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R,
+-	.n_minors		= 1,
+ };
+ 
+ static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
+diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
+index 1386749..5430258 100644
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -8,7 +8,8 @@ source "drivers/tty/Kconfig"
+ 
+ config DEVKMEM
+ 	bool "/dev/kmem virtual device support"
+-	default y
++	default n
++	depends on !GRKERNSEC_KMEM
+ 	help
+ 	  Say Y here if you want to support the /dev/kmem device. The
+ 	  /dev/kmem device is rarely used, but can be used for certain
+@@ -577,6 +578,7 @@ config DEVPORT
+ 	bool
+ 	depends on !M68K
+ 	depends on ISA || PCI
++	depends on !GRKERNSEC_KMEM
+ 	default y
+ 
+ source "drivers/s390/char/Kconfig"
+diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c
+index a48e05b..6bac831 100644
+--- a/drivers/char/agp/compat_ioctl.c
++++ b/drivers/char/agp/compat_ioctl.c
+@@ -108,7 +108,7 @@ static int compat_agpioc_reserve_wrap(struct agp_file_private *priv, void __user
+ 			return -ENOMEM;
+ 		}
+ 
+-		if (copy_from_user(usegment, (void __user *) ureserve.seg_list,
++		if (copy_from_user(usegment, (void __force_user *) ureserve.seg_list,
+ 				   sizeof(*usegment) * ureserve.seg_count)) {
+ 			kfree(usegment);
+ 			kfree(ksegment);
+diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
+index 1b19239..963967b 100644
+--- a/drivers/char/agp/frontend.c
++++ b/drivers/char/agp/frontend.c
+@@ -731,6 +731,7 @@ static int agpioc_info_wrap(struct agp_file_private *priv, void __user *arg)
+ 
+ 	agp_copy_info(agp_bridge, &kerninfo);
+ 
++	memset(&userinfo, 0, sizeof(userinfo));
+ 	userinfo.version.major = kerninfo.version.major;
+ 	userinfo.version.minor = kerninfo.version.minor;
+ 	userinfo.bridge_id = kerninfo.device->vendor |
+@@ -819,7 +820,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
+ 	if (copy_from_user(&reserve, arg, sizeof(struct agp_region)))
+ 		return -EFAULT;
+ 
+-	if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment))
++	if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv))
+ 		return -EFAULT;
+ 
+ 	client = agp_find_client_by_pid(reserve.pid);
+@@ -849,7 +850,7 @@ static int agpioc_reserve_wrap(struct agp_file_private *priv, void __user *arg)
+ 		if (segment == NULL)
+ 			return -ENOMEM;
+ 
+-		if (copy_from_user(segment, (void __user *) reserve.seg_list,
++		if (copy_from_user(segment, (void __force_user *) reserve.seg_list,
+ 				   sizeof(struct agp_segment) * reserve.seg_count)) {
+ 			kfree(segment);
+ 			return -EFAULT;
+diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
+index 4f94375..413694e 100644
+--- a/drivers/char/genrtc.c
++++ b/drivers/char/genrtc.c
+@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *file,
+ 	switch (cmd) {
+ 
+ 	case RTC_PLL_GET:
++	    memset(&pll, 0, sizeof(pll));
+ 	    if (get_rtc_pll(&pll))
+ 	 	    return -EINVAL;
+ 	    else
+diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
+index d5d4cd8..22d561d 100644
+--- a/drivers/char/hpet.c
++++ b/drivers/char/hpet.c
+@@ -575,7 +575,7 @@ static inline unsigned long hpet_time_div(struct hpets *hpets,
+ }
+ 
+ static int
+-hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
++hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg,
+ 		  struct hpet_info *info)
+ {
+ 	struct hpet_timer __iomem *timer;
+diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
+index 86fe45c..c0ea948 100644
+--- a/drivers/char/hw_random/intel-rng.c
++++ b/drivers/char/hw_random/intel-rng.c
+@@ -314,7 +314,7 @@ PFX "RNG, try using the 'no_fwh_detect' option.\n";
+ 
+ 		if (no_fwh_detect)
+ 			return -ENODEV;
+-		printk(warning);
++		printk("%s", warning);
+ 		return -EBUSY;
+ 	}
+ 
+diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
+index 93dcad0..c6e53b1 100644
+--- a/drivers/char/i8k.c
++++ b/drivers/char/i8k.c
+@@ -659,7 +659,7 @@ static int __init i8k_init_hwmon(void)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id i8k_dmi_table[] __initdata = {
++static const struct dmi_system_id i8k_dmi_table[] __initconst = {
+ 	{
+ 		.ident = "Dell Inspiron",
+ 		.matches = {
+diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
+index ec4e10f..f2a763b 100644
+--- a/drivers/char/ipmi/ipmi_msghandler.c
++++ b/drivers/char/ipmi/ipmi_msghandler.c
+@@ -420,7 +420,7 @@ struct ipmi_smi {
+ 	struct proc_dir_entry *proc_dir;
+ 	char                  proc_dir_name[10];
+ 
+-	atomic_t stats[IPMI_NUM_STATS];
++	atomic_unchecked_t stats[IPMI_NUM_STATS];
+ 
+ 	/*
+ 	 * run_to_completion duplicate of smb_info, smi_info
+@@ -453,9 +453,9 @@ static DEFINE_MUTEX(smi_watchers_mutex);
+ 
+ 
+ #define ipmi_inc_stat(intf, stat) \
+-	atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat])
++	atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])
+ #define ipmi_get_stat(intf, stat) \
+-	((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
++	((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]))
+ 
+ static int is_lan_addr(struct ipmi_addr *addr)
+ {
+@@ -2883,7 +2883,7 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
+ 	INIT_LIST_HEAD(&intf->cmd_rcvrs);
+ 	init_waitqueue_head(&intf->waitq);
+ 	for (i = 0; i < IPMI_NUM_STATS; i++)
+-		atomic_set(&intf->stats[i], 0);
++		atomic_set_unchecked(&intf->stats[i], 0);
+ 
+ 	intf->proc_dir = NULL;
+ 
+diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
+index 8b4fa2c..5f81848 100644
+--- a/drivers/char/ipmi/ipmi_si_intf.c
++++ b/drivers/char/ipmi/ipmi_si_intf.c
+@@ -283,7 +283,7 @@ struct smi_info {
+ 	unsigned char slave_addr;
+ 
+ 	/* Counters and things for the proc filesystem. */
+-	atomic_t stats[SI_NUM_STATS];
++	atomic_unchecked_t stats[SI_NUM_STATS];
+ 
+ 	struct task_struct *thread;
+ 
+@@ -292,9 +292,9 @@ struct smi_info {
+ };
+ 
+ #define smi_inc_stat(smi, stat) \
+-	atomic_inc(&(smi)->stats[SI_STAT_ ## stat])
++	atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat])
+ #define smi_get_stat(smi, stat) \
+-	((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat]))
++	((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat]))
+ 
+ #define SI_MAX_PARMS 4
+ 
+@@ -3349,7 +3349,7 @@ static int try_smi_init(struct smi_info *new_smi)
+ 	atomic_set(&new_smi->req_events, 0);
+ 	new_smi->run_to_completion = 0;
+ 	for (i = 0; i < SI_NUM_STATS; i++)
+-		atomic_set(&new_smi->stats[i], 0);
++		atomic_set_unchecked(&new_smi->stats[i], 0);
+ 
+ 	new_smi->interrupt_disabled = 1;
+ 	atomic_set(&new_smi->stop_operation, 0);
+diff --git a/drivers/char/mem.c b/drivers/char/mem.c
+index 92c5937..2cc937b 100644
+--- a/drivers/char/mem.c
++++ b/drivers/char/mem.c
+@@ -18,6 +18,7 @@
+ #include <linux/raw.h>
+ #include <linux/tty.h>
+ #include <linux/capability.h>
++#include <linux/security.h>
+ #include <linux/ptrace.h>
+ #include <linux/device.h>
+ #include <linux/highmem.h>
+@@ -36,6 +37,10 @@
+ 
+ #define DEVPORT_MINOR	4
+ 
++#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
++extern const struct file_operations grsec_fops;
++#endif
++
+ static inline unsigned long size_inside_page(unsigned long start,
+ 					     unsigned long size)
+ {
+@@ -67,9 +72,13 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+ 
+ 	while (cursor < to) {
+ 		if (!devmem_is_allowed(pfn)) {
++#ifdef CONFIG_GRKERNSEC_KMEM
++			gr_handle_mem_readwrite(from, to);
++#else
+ 			printk(KERN_INFO
+ 		"Program %s tried to access /dev/mem between %Lx->%Lx.\n",
+ 				current->comm, from, to);
++#endif
+ 			return 0;
+ 		}
+ 		cursor += PAGE_SIZE;
+@@ -77,6 +86,11 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+ 	}
+ 	return 1;
+ }
++#elif defined(CONFIG_GRKERNSEC_KMEM)
++static inline int range_is_allowed(unsigned long pfn, unsigned long size)
++{
++	return 0;
++}
+ #else
+ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
+ {
+@@ -118,7 +132,8 @@ static ssize_t read_mem(struct file *file, char __user *buf,
+ #endif
+ 
+ 	while (count > 0) {
+-		unsigned long remaining;
++		unsigned long remaining = 0;
++		char *temp;
+ 
+ 		sz = size_inside_page(p, count);
+ 
+@@ -134,7 +149,24 @@ static ssize_t read_mem(struct file *file, char __user *buf,
+ 		if (!ptr)
+ 			return -EFAULT;
+ 
+-		remaining = copy_to_user(buf, ptr, sz);
++#ifdef CONFIG_PAX_USERCOPY
++		temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
++		if (!temp) {
++			unxlate_dev_mem_ptr(p, ptr);
++			return -ENOMEM;
++		}
++		remaining = probe_kernel_read(temp, ptr, sz);
++#else
++		temp = ptr;
++#endif
++
++		if (!remaining)
++			remaining = copy_to_user(buf, temp, sz);
++
++#ifdef CONFIG_PAX_USERCOPY
++		kfree(temp);
++#endif
++
+ 		unxlate_dev_mem_ptr(p, ptr);
+ 		if (remaining)
+ 			return -EFAULT;
+@@ -363,9 +395,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
+ 			 size_t count, loff_t *ppos)
+ {
+ 	unsigned long p = *ppos;
+-	ssize_t low_count, read, sz;
++	ssize_t low_count, read, sz, err = 0;
+ 	char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
+-	int err = 0;
+ 
+ 	read = 0;
+ 	if (p < (unsigned long) high_memory) {
+@@ -387,6 +418,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
+ 		}
+ #endif
+ 		while (low_count > 0) {
++			char *temp;
++
+ 			sz = size_inside_page(p, low_count);
+ 
+ 			/*
+@@ -396,7 +429,23 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
+ 			 */
+ 			kbuf = xlate_dev_kmem_ptr((char *)p);
+ 
+-			if (copy_to_user(buf, kbuf, sz))
++#ifdef CONFIG_PAX_USERCOPY
++			temp = kmalloc(sz, GFP_KERNEL|GFP_USERCOPY);
++			if (!temp)
++				return -ENOMEM;
++			err = probe_kernel_read(temp, kbuf, sz);
++#else
++			temp = kbuf;
++#endif
++
++			if (!err)
++				err = copy_to_user(buf, temp, sz);
++
++#ifdef CONFIG_PAX_USERCOPY
++			kfree(temp);
++#endif
++
++			if (err)
+ 				return -EFAULT;
+ 			buf += sz;
+ 			p += sz;
+@@ -821,6 +870,9 @@ static const struct memdev {
+ #ifdef CONFIG_PRINTK
+ 	[11] = { "kmsg", 0644, &kmsg_fops, NULL },
+ #endif
++#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
++	[13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL },
++#endif
+ };
+ 
+ static int memory_open(struct inode *inode, struct file *filp)
+@@ -892,7 +944,7 @@ static int __init chr_dev_init(void)
+ 			continue;
+ 
+ 		device_create(mem_class, NULL, MKDEV(MEM_MAJOR, minor),
+-			      NULL, devlist[minor].name);
++			      NULL, "%s", devlist[minor].name);
+ 	}
+ 
+ 	return tty_init();
+diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
+index 9df78e2..01ba9ae 100644
+--- a/drivers/char/nvram.c
++++ b/drivers/char/nvram.c
+@@ -247,7 +247,7 @@ static ssize_t nvram_read(struct file *file, char __user *buf,
+ 
+ 	spin_unlock_irq(&rtc_lock);
+ 
+-	if (copy_to_user(buf, contents, tmp - contents))
++	if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents))
+ 		return -EFAULT;
+ 
+ 	*ppos = i;
+diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
+index 8320abd..ec48108 100644
+--- a/drivers/char/pcmcia/synclink_cs.c
++++ b/drivers/char/pcmcia/synclink_cs.c
+@@ -2345,9 +2345,9 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
+ 
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
+-			 __FILE__, __LINE__, info->device_name, port->count);
++			 __FILE__, __LINE__, info->device_name, atomic_read(&port->count));
+ 
+-	WARN_ON(!port->count);
++	WARN_ON(!atomic_read(&port->count));
+ 
+ 	if (tty_port_close_start(port, tty, filp) == 0)
+ 		goto cleanup;
+@@ -2365,7 +2365,7 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
+ cleanup:
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):mgslpc_close(%s) exit, count=%d\n", __FILE__, __LINE__,
+-			tty->driver->name, port->count);
++			tty->driver->name, atomic_read(&port->count));
+ }
+ 
+ /* Wait until the transmitter is empty.
+@@ -2507,7 +2507,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
+ 
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):mgslpc_open(%s), old ref count = %d\n",
+-			 __FILE__, __LINE__, tty->driver->name, port->count);
++			 __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 	/* If port is closing, signal caller to try again */
+ 	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING){
+@@ -2527,11 +2527,11 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
+ 		goto cleanup;
+ 	}
+ 	spin_lock(&port->lock);
+-	port->count++;
++	atomic_inc(&port->count);
+ 	spin_unlock(&port->lock);
+ 	spin_unlock_irqrestore(&info->netlock, flags);
+ 
+-	if (port->count == 1) {
++	if (atomic_read(&port->count) == 1) {
+ 		/* 1st open on this device, init hardware */
+ 		retval = startup(info, tty);
+ 		if (retval < 0)
+@@ -3920,7 +3920,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
+ 	unsigned short new_crctype;
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	switch (encoding)
+@@ -4024,7 +4024,7 @@ static int hdlcdev_open(struct net_device *dev)
+ 
+ 	/* arbitrate between network and tty opens */
+ 	spin_lock_irqsave(&info->netlock, flags);
+-	if (info->port.count != 0 || info->netcount != 0) {
++	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
+ 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
+ 		spin_unlock_irqrestore(&info->netlock, flags);
+ 		return -EBUSY;
+@@ -4114,7 +4114,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 		printk("%s:hdlcdev_ioctl(%s)\n", __FILE__, dev->name);
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	if (cmd != SIOCWANDEV)
+diff --git a/drivers/char/random.c b/drivers/char/random.c
+index 8a64dbe..58488cc 100644
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -284,9 +284,6 @@
+ /*
+  * To allow fractional bits to be tracked, the entropy_count field is
+  * denominated in units of 1/8th bits.
+- *
+- * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
+- * credit_entropy_bits() needs to be 64 bits wide.
+  */
+ #define ENTROPY_SHIFT 3
+ #define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
+@@ -433,9 +430,9 @@ struct entropy_store {
+ };
+ 
+ static void push_to_pool(struct work_struct *work);
+-static __u32 input_pool_data[INPUT_POOL_WORDS];
+-static __u32 blocking_pool_data[OUTPUT_POOL_WORDS];
+-static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS];
++static __u32 input_pool_data[INPUT_POOL_WORDS] __latent_entropy;
++static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
++static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy;
+ 
+ static struct entropy_store input_pool = {
+ 	.poolinfo = &poolinfo_table[0],
+@@ -524,8 +521,8 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in,
+ 		input_rotate = (input_rotate + (i ? 7 : 14)) & 31;
+ 	}
+ 
+-	ACCESS_ONCE(r->input_rotate) = input_rotate;
+-	ACCESS_ONCE(r->add_ptr) = i;
++	ACCESS_ONCE_RW(r->input_rotate) = input_rotate;
++	ACCESS_ONCE_RW(r->add_ptr) = i;
+ 	smp_wmb();
+ 
+ 	if (out)
+@@ -632,7 +629,7 @@ retry:
+ 		/* The +2 corresponds to the /4 in the denominator */
+ 
+ 		do {
+-			unsigned int anfrac = min(pnfrac, pool_size/2);
++			u64 anfrac = min(pnfrac, pool_size/2);
+ 			unsigned int add =
+ 				((pool_size - entropy_count)*anfrac*3) >> s;
+ 
+@@ -1151,7 +1148,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
+ 
+ 		extract_buf(r, tmp);
+ 		i = min_t(int, nbytes, EXTRACT_SIZE);
+-		if (copy_to_user(buf, tmp, i)) {
++		if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) {
+ 			ret = -EFAULT;
+ 			break;
+ 		}
+@@ -1507,7 +1504,7 @@ EXPORT_SYMBOL(generate_random_uuid);
+ #include <linux/sysctl.h>
+ 
+ static int min_read_thresh = 8, min_write_thresh;
+-static int max_read_thresh = INPUT_POOL_WORDS * 32;
++static int max_read_thresh = OUTPUT_POOL_WORDS * 32;
+ static int max_write_thresh = INPUT_POOL_WORDS * 32;
+ static char sysctl_bootid[16];
+ 
+@@ -1523,7 +1520,7 @@ static char sysctl_bootid[16];
+ static int proc_do_uuid(struct ctl_table *table, int write,
+ 			void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table fake_table;
++	ctl_table_no_const fake_table;
+ 	unsigned char buf[64], tmp_uuid[16], *uuid;
+ 
+ 	uuid = table->data;
+@@ -1553,7 +1550,7 @@ static int proc_do_uuid(struct ctl_table *table, int write,
+ static int proc_do_entropy(ctl_table *table, int write,
+ 			   void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	ctl_table fake_table;
++	ctl_table_no_const fake_table;
+ 	int entropy_count;
+ 
+ 	entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
+diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
+index 7cc1fe22..e7bf59e 100644
+--- a/drivers/char/sonypi.c
++++ b/drivers/char/sonypi.c
+@@ -54,6 +54,7 @@
+ 
+ #include <asm/uaccess.h>
+ #include <asm/io.h>
++#include <asm/local.h>
+ 
+ #include <linux/sonypi.h>
+ 
+@@ -490,7 +491,7 @@ static struct sonypi_device {
+ 	spinlock_t fifo_lock;
+ 	wait_queue_head_t fifo_proc_list;
+ 	struct fasync_struct *fifo_async;
+-	int open_count;
++	local_t open_count;
+ 	int model;
+ 	struct input_dev *input_jog_dev;
+ 	struct input_dev *input_key_dev;
+@@ -892,7 +893,7 @@ static int sonypi_misc_fasync(int fd, struct file *filp, int on)
+ static int sonypi_misc_release(struct inode *inode, struct file *file)
+ {
+ 	mutex_lock(&sonypi_device.lock);
+-	sonypi_device.open_count--;
++	local_dec(&sonypi_device.open_count);
+ 	mutex_unlock(&sonypi_device.lock);
+ 	return 0;
+ }
+@@ -901,9 +902,9 @@ static int sonypi_misc_open(struct inode *inode, struct file *file)
+ {
+ 	mutex_lock(&sonypi_device.lock);
+ 	/* Flush input queue on first open */
+-	if (!sonypi_device.open_count)
++	if (!local_read(&sonypi_device.open_count))
+ 		kfifo_reset(&sonypi_device.fifo);
+-	sonypi_device.open_count++;
++	local_inc(&sonypi_device.open_count);
+ 	mutex_unlock(&sonypi_device.lock);
+ 
+ 	return 0;
+@@ -1492,7 +1493,7 @@ static struct platform_driver sonypi_driver = {
+ 
+ static struct platform_device *sonypi_platform_device;
+ 
+-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
++static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
+ 	{
+ 		.ident = "Sony Vaio",
+ 		.matches = {
+diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c
+index b9a57fa..5bb9e38 100644
+--- a/drivers/char/tpm/tpm_acpi.c
++++ b/drivers/char/tpm/tpm_acpi.c
+@@ -98,11 +98,12 @@ int read_log(struct tpm_bios_log *log)
+ 	virt = acpi_os_map_memory(start, len);
+ 	if (!virt) {
+ 		kfree(log->bios_event_log);
++		log->bios_event_log = NULL;
+ 		printk("%s: ERROR - Unable to map memory\n", __func__);
+ 		return -EIO;
+ 	}
+ 
+-	memcpy_fromio(log->bios_event_log, virt, len);
++	memcpy_fromio(log->bios_event_log, (const char __force_kernel *)virt, len);
+ 
+ 	acpi_os_unmap_memory(virt, len);
+ 	return 0;
+diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
+index 59f7cb2..bac8b6d 100644
+--- a/drivers/char/tpm/tpm_eventlog.c
++++ b/drivers/char/tpm/tpm_eventlog.c
+@@ -95,7 +95,7 @@ static void *tpm_bios_measurements_start(struct seq_file *m, loff_t *pos)
+ 	event = addr;
+ 
+ 	if ((event->event_type == 0 && event->event_size == 0) ||
+-	    ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit))
++	    (event->event_size >= limit - addr - sizeof(struct tcpa_event)))
+ 		return NULL;
+ 
+ 	return addr;
+@@ -120,7 +120,7 @@ static void *tpm_bios_measurements_next(struct seq_file *m, void *v,
+ 		return NULL;
+ 
+ 	if ((event->event_type == 0 && event->event_size == 0) ||
+-	    ((v + sizeof(struct tcpa_event) + event->event_size) >= limit))
++	    (event->event_size >= limit - v - sizeof(struct tcpa_event)))
+ 		return NULL;
+ 
+ 	(*pos)++;
+@@ -213,7 +213,8 @@ static int tpm_binary_bios_measurements_show(struct seq_file *m, void *v)
+ 	int i;
+ 
+ 	for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++)
+-		seq_putc(m, data[i]);
++		if (!seq_putc(m, data[i]))
++			return -EFAULT;
+ 
+ 	return 0;
+ }
+diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
+index b08eadb..2de41c5 100644
+--- a/drivers/char/virtio_console.c
++++ b/drivers/char/virtio_console.c
+@@ -685,7 +685,7 @@ static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count,
+ 	if (to_user) {
+ 		ssize_t ret;
+ 
+-		ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
++		ret = copy_to_user((char __force_user *)out_buf, buf->buf + buf->offset, out_count);
+ 		if (ret)
+ 			return -EFAULT;
+ 	} else {
+@@ -788,7 +788,7 @@ static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
+ 	if (!port_has_data(port) && !port->host_connected)
+ 		return 0;
+ 
+-	return fill_readbuf(port, ubuf, count, true);
++	return fill_readbuf(port, (char __force_kernel *)ubuf, count, true);
+ }
+ 
+ static int wait_port_writable(struct port *port, bool nonblock)
+diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
+index 57a078e..c17cde8 100644
+--- a/drivers/clk/clk-composite.c
++++ b/drivers/clk/clk-composite.c
+@@ -146,7 +146,7 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
+ 	struct clk *clk;
+ 	struct clk_init_data init;
+ 	struct clk_composite *composite;
+-	struct clk_ops *clk_composite_ops;
++	clk_ops_no_const *clk_composite_ops;
+ 
+ 	composite = kzalloc(sizeof(*composite), GFP_KERNEL);
+ 	if (!composite) {
+diff --git a/drivers/clk/socfpga/clk.c b/drivers/clk/socfpga/clk.c
+index 5983a26..65d5f46 100644
+--- a/drivers/clk/socfpga/clk.c
++++ b/drivers/clk/socfpga/clk.c
+@@ -22,6 +22,7 @@
+ #include <linux/clk-provider.h>
+ #include <linux/io.h>
+ #include <linux/of.h>
++#include <asm/pgtable.h>
+ 
+ /* Clock Manager offsets */
+ #define CLKMGR_CTRL	0x0
+@@ -150,8 +151,10 @@ static __init struct clk *socfpga_clk_init(struct device_node *node,
+ 		streq(clk_name, "periph_pll") ||
+ 		streq(clk_name, "sdram_pll")) {
+ 		socfpga_clk->hw.bit_idx = SOCFPGA_PLL_EXT_ENA;
+-		clk_pll_ops.enable = clk_gate_ops.enable;
+-		clk_pll_ops.disable = clk_gate_ops.disable;
++		pax_open_kernel();
++		*(void **)&clk_pll_ops.enable = clk_gate_ops.enable;
++		*(void **)&clk_pll_ops.disable = clk_gate_ops.disable;
++		pax_close_kernel();
+ 	}
+ 
+ 	clk = clk_register(NULL, &socfpga_clk->hw.hw);
+@@ -242,7 +245,7 @@ static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk,
+ 	return parent_rate / div;
+ }
+ 
+-static struct clk_ops gateclk_ops = {
++static clk_ops_no_const gateclk_ops __read_only = {
+ 	.recalc_rate = socfpga_clk_recalc_rate,
+ 	.get_parent = socfpga_clk_get_parent,
+ 	.set_parent = socfpga_clk_set_parent,
+diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
+index 18448a7..d5fad43 100644
+--- a/drivers/cpufreq/acpi-cpufreq.c
++++ b/drivers/cpufreq/acpi-cpufreq.c
+@@ -676,8 +676,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
+ 	data->acpi_data = per_cpu_ptr(acpi_perf_data, cpu);
+ 	per_cpu(acfreq_data, cpu) = data;
+ 
+-	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC))
+-		acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
++	if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
++		pax_open_kernel();
++		*(u8 *)&acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS;
++		pax_close_kernel();
++	}
+ 
+ 	result = acpi_processor_register_performance(data->acpi_data, cpu);
+ 	if (result)
+@@ -810,7 +813,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
+ 		policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
+ 		break;
+ 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
+-		acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
++		pax_open_kernel();
++		*(void **)&acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
++		pax_close_kernel();
+ 		break;
+ 	default:
+ 		break;
+@@ -905,8 +910,10 @@ static void __init acpi_cpufreq_boost_init(void)
+ 		if (!msrs)
+ 			return;
+ 
+-		acpi_cpufreq_driver.boost_supported = true;
+-		acpi_cpufreq_driver.boost_enabled = boost_state(0);
++		pax_open_kernel();
++		*(bool *)&acpi_cpufreq_driver.boost_supported = true;
++		*(bool *)&acpi_cpufreq_driver.boost_enabled = boost_state(0);
++		pax_close_kernel();
+ 		get_online_cpus();
+ 
+ 		/* Force all MSRs to the same value */
+diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
+index ef3b8ad..728edfa 100644
+--- a/drivers/cpufreq/cpufreq.c
++++ b/drivers/cpufreq/cpufreq.c
+@@ -1985,7 +1985,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
+ #endif
+ 
+ 	mutex_lock(&cpufreq_governor_mutex);
+-	list_del(&governor->governor_list);
++	pax_list_del(&governor->governor_list);
+ 	mutex_unlock(&cpufreq_governor_mutex);
+ 	return;
+ }
+@@ -2215,7 +2215,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata cpufreq_cpu_notifier = {
++static struct notifier_block cpufreq_cpu_notifier = {
+ 	.notifier_call = cpufreq_cpu_callback,
+ };
+ 
+@@ -2255,13 +2255,17 @@ int cpufreq_boost_trigger_state(int state)
+ 		return 0;
+ 
+ 	write_lock_irqsave(&cpufreq_driver_lock, flags);
+-	cpufreq_driver->boost_enabled = state;
++	pax_open_kernel();
++	*(bool *)&cpufreq_driver->boost_enabled = state;
++	pax_close_kernel();
+ 	write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ 
+ 	ret = cpufreq_driver->set_boost(state);
+ 	if (ret) {
+ 		write_lock_irqsave(&cpufreq_driver_lock, flags);
+-		cpufreq_driver->boost_enabled = !state;
++		pax_open_kernel();
++		*(bool *)&cpufreq_driver->boost_enabled = !state;
++		pax_close_kernel();
+ 		write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ 
+ 		pr_err("%s: Cannot %s BOOST\n", __func__,
+@@ -2315,8 +2319,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
+ 
+ 	pr_debug("trying to register driver %s\n", driver_data->name);
+ 
+-	if (driver_data->setpolicy)
+-		driver_data->flags |= CPUFREQ_CONST_LOOPS;
++	if (driver_data->setpolicy) {
++		pax_open_kernel();
++		*(u8 *)&driver_data->flags |= CPUFREQ_CONST_LOOPS;
++		pax_close_kernel();
++	}
+ 
+ 	write_lock_irqsave(&cpufreq_driver_lock, flags);
+ 	if (cpufreq_driver) {
+@@ -2331,8 +2338,11 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
+ 		 * Check if driver provides function to enable boost -
+ 		 * if not, use cpufreq_boost_set_sw as default
+ 		 */
+-		if (!cpufreq_driver->set_boost)
+-			cpufreq_driver->set_boost = cpufreq_boost_set_sw;
++		if (!cpufreq_driver->set_boost) {
++			pax_open_kernel();
++			*(void **)&cpufreq_driver->set_boost = cpufreq_boost_set_sw;
++			pax_close_kernel();
++		}
+ 
+ 		ret = cpufreq_sysfs_create_file(&boost.attr);
+ 		if (ret) {
+diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
+index e1c6433..31203ae 100644
+--- a/drivers/cpufreq/cpufreq_governor.c
++++ b/drivers/cpufreq/cpufreq_governor.c
+@@ -191,7 +191,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
+ 	struct dbs_data *dbs_data;
+ 	struct od_cpu_dbs_info_s *od_dbs_info = NULL;
+ 	struct cs_cpu_dbs_info_s *cs_dbs_info = NULL;
+-	struct od_ops *od_ops = NULL;
++	const struct od_ops *od_ops = NULL;
+ 	struct od_dbs_tuners *od_tuners = NULL;
+ 	struct cs_dbs_tuners *cs_tuners = NULL;
+ 	struct cpu_dbs_common_info *cpu_cdbs;
+@@ -257,7 +257,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
+ 
+ 		if ((cdata->governor == GOV_CONSERVATIVE) &&
+ 				(!policy->governor->initialized)) {
+-			struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
++			const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
+ 
+ 			cpufreq_register_notifier(cs_ops->notifier_block,
+ 					CPUFREQ_TRANSITION_NOTIFIER);
+@@ -277,7 +277,7 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
+ 
+ 			if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
+ 				(policy->governor->initialized == 1)) {
+-				struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
++				const struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
+ 
+ 				cpufreq_unregister_notifier(cs_ops->notifier_block,
+ 						CPUFREQ_TRANSITION_NOTIFIER);
+diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
+index bfb9ae1..e1d3a7e 100644
+--- a/drivers/cpufreq/cpufreq_governor.h
++++ b/drivers/cpufreq/cpufreq_governor.h
+@@ -205,7 +205,7 @@ struct common_dbs_data {
+ 	void (*exit)(struct dbs_data *dbs_data);
+ 
+ 	/* Governor specific ops, see below */
+-	void *gov_ops;
++	const void *gov_ops;
+ };
+ 
+ /* Governor Per policy data */
+@@ -225,7 +225,7 @@ struct od_ops {
+ 	unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
+ 			unsigned int freq_next, unsigned int relation);
+ 	void (*freq_increase)(struct cpufreq_policy *policy, unsigned int freq);
+-};
++} __no_const;
+ 
+ struct cs_ops {
+ 	struct notifier_block *notifier_block;
+diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
+index 18d4091..434be15 100644
+--- a/drivers/cpufreq/cpufreq_ondemand.c
++++ b/drivers/cpufreq/cpufreq_ondemand.c
+@@ -521,7 +521,7 @@ static void od_exit(struct dbs_data *dbs_data)
+ 
+ define_get_cpu_dbs_routines(od_cpu_dbs_info);
+ 
+-static struct od_ops od_ops = {
++static struct od_ops od_ops __read_only = {
+ 	.powersave_bias_init_cpu = ondemand_powersave_bias_init_cpu,
+ 	.powersave_bias_target = generic_powersave_bias_target,
+ 	.freq_increase = dbs_freq_increase,
+@@ -576,14 +576,18 @@ void od_register_powersave_bias_handler(unsigned int (*f)
+ 		(struct cpufreq_policy *, unsigned int, unsigned int),
+ 		unsigned int powersave_bias)
+ {
+-	od_ops.powersave_bias_target = f;
++	pax_open_kernel();
++	*(void **)&od_ops.powersave_bias_target = f;
++	pax_close_kernel();
+ 	od_set_powersave_bias(powersave_bias);
+ }
+ EXPORT_SYMBOL_GPL(od_register_powersave_bias_handler);
+ 
+ void od_unregister_powersave_bias_handler(void)
+ {
+-	od_ops.powersave_bias_target = generic_powersave_bias_target;
++	pax_open_kernel();
++	*(void **)&od_ops.powersave_bias_target = generic_powersave_bias_target;
++	pax_close_kernel();
+ 	od_set_powersave_bias(0);
+ }
+ EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
+diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
+index 533a509..4e1860b 100644
+--- a/drivers/cpufreq/intel_pstate.c
++++ b/drivers/cpufreq/intel_pstate.c
+@@ -138,10 +138,10 @@ struct pstate_funcs {
+ struct cpu_defaults {
+ 	struct pstate_adjust_policy pid_policy;
+ 	struct pstate_funcs funcs;
+-};
++} __do_const;
+ 
+ static struct pstate_adjust_policy pid_params;
+-static struct pstate_funcs pstate_funcs;
++static struct pstate_funcs *pstate_funcs;
+ 
+ struct perf_limits {
+ 	int no_turbo;
+@@ -566,7 +566,7 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
+ 
+ 	cpu->pstate.current_pstate = pstate;
+ 
+-	pstate_funcs.set(cpu, pstate);
++	pstate_funcs->set(cpu, pstate);
+ }
+ 
+ static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps)
+@@ -588,13 +588,13 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
+ {
+ 	sprintf(cpu->name, "Intel 2nd generation core");
+ 
+-	cpu->pstate.min_pstate = pstate_funcs.get_min();
+-	cpu->pstate.max_pstate = pstate_funcs.get_max();
+-	cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
+-	cpu->pstate.scaling = pstate_funcs.get_scaling();
++	cpu->pstate.min_pstate = pstate_funcs->get_min();
++	cpu->pstate.max_pstate = pstate_funcs->get_max();
++	cpu->pstate.turbo_pstate = pstate_funcs->get_turbo();
++	cpu->pstate.scaling = pstate_funcs->get_scaling();
+ 
+-	if (pstate_funcs.get_vid)
+-		pstate_funcs.get_vid(cpu);
++	if (pstate_funcs->get_vid)
++		pstate_funcs->get_vid(cpu);
+ 	intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
+ }
+ 
+@@ -889,9 +889,9 @@ static int intel_pstate_msrs_not_valid(void)
+ 	rdmsrl(MSR_IA32_APERF, aperf);
+ 	rdmsrl(MSR_IA32_MPERF, mperf);
+ 
+-	if (!pstate_funcs.get_max() ||
+-		!pstate_funcs.get_min() ||
+-		!pstate_funcs.get_turbo())
++	if (!pstate_funcs->get_max() ||
++		!pstate_funcs->get_min() ||
++		!pstate_funcs->get_turbo())
+ 		return -ENODEV;
+ 
+ 	rdmsrl(MSR_IA32_APERF, tmp);
+@@ -905,7 +905,7 @@ static int intel_pstate_msrs_not_valid(void)
+ 	return 0;
+ }
+ 
+-static void copy_pid_params(struct pstate_adjust_policy *policy)
++static void copy_pid_params(const struct pstate_adjust_policy *policy)
+ {
+ 	pid_params.sample_rate_ms = policy->sample_rate_ms;
+ 	pid_params.p_gain_pct = policy->p_gain_pct;
+@@ -917,12 +917,7 @@ static void copy_pid_params(struct pstate_adjust_policy *policy)
+ 
+ static void copy_cpu_funcs(struct pstate_funcs *funcs)
+ {
+-	pstate_funcs.get_max   = funcs->get_max;
+-	pstate_funcs.get_min   = funcs->get_min;
+-	pstate_funcs.get_turbo = funcs->get_turbo;
+-	pstate_funcs.get_scaling = funcs->get_scaling;
+-	pstate_funcs.set       = funcs->set;
+-	pstate_funcs.get_vid   = funcs->get_vid;
++	pstate_funcs = funcs;
+ }
+ 
+ #if IS_ENABLED(CONFIG_ACPI)
+diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
+index 3d1cba9..0ab21d2 100644
+--- a/drivers/cpufreq/p4-clockmod.c
++++ b/drivers/cpufreq/p4-clockmod.c
+@@ -134,10 +134,14 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
+ 		case 0x0F: /* Core Duo */
+ 		case 0x16: /* Celeron Core */
+ 		case 0x1C: /* Atom */
+-			p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
++			pax_open_kernel();
++			*(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
++			pax_close_kernel();
+ 			return speedstep_get_frequency(SPEEDSTEP_CPU_PCORE);
+ 		case 0x0D: /* Pentium M (Dothan) */
+-			p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
++			pax_open_kernel();
++			*(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
++			pax_close_kernel();
+ 			/* fall through */
+ 		case 0x09: /* Pentium M (Banias) */
+ 			return speedstep_get_frequency(SPEEDSTEP_CPU_PM);
+@@ -149,7 +153,9 @@ static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
+ 
+ 	/* on P-4s, the TSC runs with constant frequency independent whether
+ 	 * throttling is active or not. */
+-	p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
++	pax_open_kernel();
++	*(u8 *)&p4clockmod_driver.flags |= CPUFREQ_CONST_LOOPS;
++	pax_close_kernel();
+ 
+ 	if (speedstep_detect_processor() == SPEEDSTEP_CPU_P4M) {
+ 		printk(KERN_WARNING PFX "Warning: Pentium 4-M detected. "
+diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
+index 724ffbd..f06aaaa 100644
+--- a/drivers/cpufreq/sparc-us3-cpufreq.c
++++ b/drivers/cpufreq/sparc-us3-cpufreq.c
+@@ -18,14 +18,12 @@
+ #include <asm/head.h>
+ #include <asm/timer.h>
+ 
+-static struct cpufreq_driver *cpufreq_us3_driver;
+-
+ struct us3_freq_percpu_info {
+ 	struct cpufreq_frequency_table table[4];
+ };
+ 
+ /* Indexed by cpu number. */
+-static struct us3_freq_percpu_info *us3_freq_table;
++static struct us3_freq_percpu_info us3_freq_table[NR_CPUS];
+ 
+ /* UltraSPARC-III has three dividers: 1, 2, and 32.  These are controlled
+  * in the Safari config register.
+@@ -156,18 +154,28 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
+ 
+ static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
+ {
+-	if (cpufreq_us3_driver) {
+-		cpufreq_frequency_table_put_attr(policy->cpu);
+-		us3_freq_target(policy, 0);
+-	}
++	cpufreq_frequency_table_put_attr(policy->cpu);
++	us3_freq_target(policy, 0);
+ 
+ 	return 0;
+ }
+ 
++static int __init us3_freq_init(void);
++static void __exit us3_freq_exit(void);
++
++static struct cpufreq_driver cpufreq_us3_driver = {
++	.init		= us3_freq_cpu_init,
++	.verify		= cpufreq_generic_frequency_table_verify,
++	.target_index	= us3_freq_target,
++	.get		= us3_freq_get,
++	.exit		= us3_freq_cpu_exit,
++	.name		= "UltraSPARC-III",
++
++};
++
+ static int __init us3_freq_init(void)
+ {
+ 	unsigned long manuf, impl, ver;
+-	int ret;
+ 
+ 	if (tlb_type != cheetah && tlb_type != cheetah_plus)
+ 		return -ENODEV;
+@@ -180,55 +188,15 @@ static int __init us3_freq_init(void)
+ 	    (impl == CHEETAH_IMPL ||
+ 	     impl == CHEETAH_PLUS_IMPL ||
+ 	     impl == JAGUAR_IMPL ||
+-	     impl == PANTHER_IMPL)) {
+-		struct cpufreq_driver *driver;
+-
+-		ret = -ENOMEM;
+-		driver = kzalloc(sizeof(*driver), GFP_KERNEL);
+-		if (!driver)
+-			goto err_out;
+-
+-		us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
+-			GFP_KERNEL);
+-		if (!us3_freq_table)
+-			goto err_out;
+-
+-		driver->init = us3_freq_cpu_init;
+-		driver->verify = cpufreq_generic_frequency_table_verify;
+-		driver->target_index = us3_freq_target;
+-		driver->get = us3_freq_get;
+-		driver->exit = us3_freq_cpu_exit;
+-		strcpy(driver->name, "UltraSPARC-III");
+-
+-		cpufreq_us3_driver = driver;
+-		ret = cpufreq_register_driver(driver);
+-		if (ret)
+-			goto err_out;
+-
+-		return 0;
+-
+-err_out:
+-		if (driver) {
+-			kfree(driver);
+-			cpufreq_us3_driver = NULL;
+-		}
+-		kfree(us3_freq_table);
+-		us3_freq_table = NULL;
+-		return ret;
+-	}
++	     impl == PANTHER_IMPL))
++		return cpufreq_register_driver(&cpufreq_us3_driver);
+ 
+ 	return -ENODEV;
+ }
+ 
+ static void __exit us3_freq_exit(void)
+ {
+-	if (cpufreq_us3_driver) {
+-		cpufreq_unregister_driver(cpufreq_us3_driver);
+-		kfree(cpufreq_us3_driver);
+-		cpufreq_us3_driver = NULL;
+-		kfree(us3_freq_table);
+-		us3_freq_table = NULL;
+-	}
++	cpufreq_unregister_driver(&cpufreq_us3_driver);
+ }
+ 
+ MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
+diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
+index 4e1daca..e707b61 100644
+--- a/drivers/cpufreq/speedstep-centrino.c
++++ b/drivers/cpufreq/speedstep-centrino.c
+@@ -351,8 +351,11 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
+ 	    !cpu_has(cpu, X86_FEATURE_EST))
+ 		return -ENODEV;
+ 
+-	if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC))
+-		centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
++	if (cpu_has(cpu, X86_FEATURE_CONSTANT_TSC)) {
++		pax_open_kernel();
++		*(u8 *)&centrino_driver.flags |= CPUFREQ_CONST_LOOPS;
++		pax_close_kernel();
++	}
+ 
+ 	if (policy->cpu != 0)
+ 		return -ENODEV;
+diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
+index 06dbe7c..c2c8671 100644
+--- a/drivers/cpuidle/driver.c
++++ b/drivers/cpuidle/driver.c
+@@ -202,7 +202,7 @@ static int poll_idle(struct cpuidle_device *dev,
+ 
+ static void poll_idle_init(struct cpuidle_driver *drv)
+ {
+-	struct cpuidle_state *state = &drv->states[0];
++	cpuidle_state_no_const *state = &drv->states[0];
+ 
+ 	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
+ 	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
+diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
+index ca89412..a7b9c49 100644
+--- a/drivers/cpuidle/governor.c
++++ b/drivers/cpuidle/governor.c
+@@ -87,7 +87,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
+ 	mutex_lock(&cpuidle_lock);
+ 	if (__cpuidle_find_governor(gov->name) == NULL) {
+ 		ret = 0;
+-		list_add_tail(&gov->governor_list, &cpuidle_governors);
++		pax_list_add_tail((struct list_head *)&gov->governor_list, &cpuidle_governors);
+ 		if (!cpuidle_curr_governor ||
+ 		    cpuidle_curr_governor->rating < gov->rating)
+ 			cpuidle_switch_governor(gov);
+diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
+index dcaae4c..80cd4dd 100644
+--- a/drivers/cpuidle/sysfs.c
++++ b/drivers/cpuidle/sysfs.c
+@@ -135,7 +135,7 @@ static struct attribute *cpuidle_switch_attrs[] = {
+ 	NULL
+ };
+ 
+-static struct attribute_group cpuidle_attr_group = {
++static attribute_group_no_const cpuidle_attr_group = {
+ 	.attrs = cpuidle_default_attrs,
+ 	.name = "cpuidle",
+ };
+diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
+index d97a03d..acf64bb 100644
+--- a/drivers/crypto/caam/caamhash.c
++++ b/drivers/crypto/caam/caamhash.c
+@@ -1469,6 +1469,9 @@ static int ahash_init(struct ahash_request *req)
+ 	state->final = ahash_final_no_ctx;
+ 
+ 	state->current_buf = 0;
++	state->buf_dma = 0;
++	state->buflen_0 = 0;
++	state->buflen_1 = 0;
+ 
+ 	return 0;
+ }
+diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
+index 28486b1..ae6dae8 100644
+--- a/drivers/crypto/caam/caamrng.c
++++ b/drivers/crypto/caam/caamrng.c
+@@ -56,7 +56,7 @@
+ 
+ /* Buffer, its dma address and lock */
+ struct buf_data {
+-	u8 buf[RN_BUF_SIZE];
++	u8 buf[RN_BUF_SIZE] ____cacheline_aligned;
+ 	dma_addr_t addr;
+ 	struct completion filled;
+ 	u32 hw_desc[DESC_JOB_O_LEN];
+diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
+index 12fea3e2..1e28f47 100644
+--- a/drivers/crypto/hifn_795x.c
++++ b/drivers/crypto/hifn_795x.c
+@@ -51,7 +51,7 @@ module_param_string(hifn_pll_ref, hifn_pll_ref, sizeof(hifn_pll_ref), 0444);
+ MODULE_PARM_DESC(hifn_pll_ref,
+ 		 "PLL reference clock (pci[freq] or ext[freq], default ext)");
+ 
+-static atomic_t hifn_dev_number;
++static atomic_unchecked_t hifn_dev_number;
+ 
+ #define ACRYPTO_OP_DECRYPT	0
+ #define ACRYPTO_OP_ENCRYPT	1
+@@ -2577,7 +2577,7 @@ static int hifn_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+ 		goto err_out_disable_pci_device;
+ 
+ 	snprintf(name, sizeof(name), "hifn%d",
+-			atomic_inc_return(&hifn_dev_number)-1);
++			atomic_inc_return_unchecked(&hifn_dev_number)-1);
+ 
+ 	err = pci_request_regions(pdev, name);
+ 	if (err)
+diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
+index a0b2f7e..1b6f028 100644
+--- a/drivers/devfreq/devfreq.c
++++ b/drivers/devfreq/devfreq.c
+@@ -607,7 +607,7 @@ int devfreq_add_governor(struct devfreq_governor *governor)
+ 		goto err_out;
+ 	}
+ 
+-	list_add(&governor->node, &devfreq_governor_list);
++	pax_list_add((struct list_head *)&governor->node, &devfreq_governor_list);
+ 
+ 	list_for_each_entry(devfreq, &devfreq_list, node) {
+ 		int ret = 0;
+@@ -695,7 +695,7 @@ int devfreq_remove_governor(struct devfreq_governor *governor)
+ 		}
+ 	}
+ 
+-	list_del(&governor->node);
++	pax_list_del((struct list_head *)&governor->node);
+ err_out:
+ 	mutex_unlock(&devfreq_list_lock);
+ 
+diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
+index 2e7b394..1371a64 100644
+--- a/drivers/dma/sh/shdma-base.c
++++ b/drivers/dma/sh/shdma-base.c
+@@ -267,8 +267,8 @@ static int shdma_alloc_chan_resources(struct dma_chan *chan)
+ 		schan->slave_id = -EINVAL;
+ 	}
+ 
+-	schan->desc = kcalloc(NR_DESCS_PER_CHANNEL,
+-			      sdev->desc_size, GFP_KERNEL);
++	schan->desc = kcalloc(sdev->desc_size,
++			      NR_DESCS_PER_CHANNEL, GFP_KERNEL);
+ 	if (!schan->desc) {
+ 		ret = -ENOMEM;
+ 		goto edescalloc;
+diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
+index 0d765c0..60b7480 100644
+--- a/drivers/dma/sh/shdmac.c
++++ b/drivers/dma/sh/shdmac.c
+@@ -511,7 +511,7 @@ static int sh_dmae_nmi_handler(struct notifier_block *self,
+ 	return ret;
+ }
+ 
+-static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
++static struct notifier_block sh_dmae_nmi_notifier = {
+ 	.notifier_call	= sh_dmae_nmi_handler,
+ 
+ 	/* Run before NMI debug handler and KGDB */
+diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
+index 592af5f..bb1d583 100644
+--- a/drivers/edac/edac_device.c
++++ b/drivers/edac/edac_device.c
+@@ -477,9 +477,9 @@ void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
+  */
+ int edac_device_alloc_index(void)
+ {
+-	static atomic_t device_indexes = ATOMIC_INIT(0);
++	static atomic_unchecked_t device_indexes = ATOMIC_INIT(0);
+ 
+-	return atomic_inc_return(&device_indexes) - 1;
++	return atomic_inc_return_unchecked(&device_indexes) - 1;
+ }
+ EXPORT_SYMBOL_GPL(edac_device_alloc_index);
+ 
+diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
+index b335c6a..db65b44 100644
+--- a/drivers/edac/edac_mc_sysfs.c
++++ b/drivers/edac/edac_mc_sysfs.c
+@@ -152,7 +152,7 @@ static const char * const edac_caps[] = {
+ struct dev_ch_attribute {
+ 	struct device_attribute attr;
+ 	int channel;
+-};
++} __do_const;
+ 
+ #define DEVICE_CHANNEL(_name, _mode, _show, _store, _var) \
+ 	struct dev_ch_attribute dev_attr_legacy_##_name = \
+@@ -1009,14 +1009,16 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
+ 	}
+ 
+ 	if (mci->set_sdram_scrub_rate || mci->get_sdram_scrub_rate) {
++		pax_open_kernel();
+ 		if (mci->get_sdram_scrub_rate) {
+-			dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
+-			dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
++			*(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IRUGO;
++			*(void **)&dev_attr_sdram_scrub_rate.show = &mci_sdram_scrub_rate_show;
+ 		}
+ 		if (mci->set_sdram_scrub_rate) {
+-			dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
+-			dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
++			*(umode_t *)&dev_attr_sdram_scrub_rate.attr.mode |= S_IWUSR;
++			*(void **)&dev_attr_sdram_scrub_rate.store = &mci_sdram_scrub_rate_store;
+ 		}
++		pax_close_kernel();
+ 		err = device_create_file(&mci->dev,
+ 					 &dev_attr_sdram_scrub_rate);
+ 		if (err) {
+diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
+index 2cf44b4d..6dd2dc7 100644
+--- a/drivers/edac/edac_pci.c
++++ b/drivers/edac/edac_pci.c
+@@ -29,7 +29,7 @@
+ 
+ static DEFINE_MUTEX(edac_pci_ctls_mutex);
+ static LIST_HEAD(edac_pci_list);
+-static atomic_t pci_indexes = ATOMIC_INIT(0);
++static atomic_unchecked_t pci_indexes = ATOMIC_INIT(0);
+ 
+ /*
+  * edac_pci_alloc_ctl_info
+@@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(edac_pci_reset_delay_period);
+  */
+ int edac_pci_alloc_index(void)
+ {
+-	return atomic_inc_return(&pci_indexes) - 1;
++	return atomic_inc_return_unchecked(&pci_indexes) - 1;
+ }
+ EXPORT_SYMBOL_GPL(edac_pci_alloc_index);
+ 
+diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
+index e8658e4..22746d6 100644
+--- a/drivers/edac/edac_pci_sysfs.c
++++ b/drivers/edac/edac_pci_sysfs.c
+@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1;		/* log PCI parity errors */
+ static int edac_pci_log_npe = 1;	/* log PCI non-parity error errors */
+ static int edac_pci_poll_msec = 1000;	/* one second workq period */
+ 
+-static atomic_t pci_parity_count = ATOMIC_INIT(0);
+-static atomic_t pci_nonparity_count = ATOMIC_INIT(0);
++static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0);
++static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0);
+ 
+ static struct kobject *edac_pci_top_main_kobj;
+ static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0);
+@@ -235,7 +235,7 @@ struct edac_pci_dev_attribute {
+ 	void *value;
+ 	 ssize_t(*show) (void *, char *);
+ 	 ssize_t(*store) (void *, const char *, size_t);
+-};
++} __do_const;
+ 
+ /* Set of show/store abstract level functions for PCI Parity object */
+ static ssize_t edac_pci_dev_show(struct kobject *kobj, struct attribute *attr,
+@@ -579,7 +579,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
+ 			edac_printk(KERN_CRIT, EDAC_PCI,
+ 				"Signaled System Error on %s\n",
+ 				pci_name(dev));
+-			atomic_inc(&pci_nonparity_count);
++			atomic_inc_unchecked(&pci_nonparity_count);
+ 		}
+ 
+ 		if (status & (PCI_STATUS_PARITY)) {
+@@ -587,7 +587,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
+ 				"Master Data Parity Error on %s\n",
+ 				pci_name(dev));
+ 
+-			atomic_inc(&pci_parity_count);
++			atomic_inc_unchecked(&pci_parity_count);
+ 		}
+ 
+ 		if (status & (PCI_STATUS_DETECTED_PARITY)) {
+@@ -595,7 +595,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
+ 				"Detected Parity Error on %s\n",
+ 				pci_name(dev));
+ 
+-			atomic_inc(&pci_parity_count);
++			atomic_inc_unchecked(&pci_parity_count);
+ 		}
+ 	}
+ 
+@@ -618,7 +618,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
+ 				edac_printk(KERN_CRIT, EDAC_PCI, "Bridge "
+ 					"Signaled System Error on %s\n",
+ 					pci_name(dev));
+-				atomic_inc(&pci_nonparity_count);
++				atomic_inc_unchecked(&pci_nonparity_count);
+ 			}
+ 
+ 			if (status & (PCI_STATUS_PARITY)) {
+@@ -626,7 +626,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
+ 					"Master Data Parity Error on "
+ 					"%s\n", pci_name(dev));
+ 
+-				atomic_inc(&pci_parity_count);
++				atomic_inc_unchecked(&pci_parity_count);
+ 			}
+ 
+ 			if (status & (PCI_STATUS_DETECTED_PARITY)) {
+@@ -634,7 +634,7 @@ static void edac_pci_dev_parity_test(struct pci_dev *dev)
+ 					"Detected Parity Error on %s\n",
+ 					pci_name(dev));
+ 
+-				atomic_inc(&pci_parity_count);
++				atomic_inc_unchecked(&pci_parity_count);
+ 			}
+ 		}
+ 	}
+@@ -672,7 +672,7 @@ void edac_pci_do_parity_check(void)
+ 	if (!check_pci_errors)
+ 		return;
+ 
+-	before_count = atomic_read(&pci_parity_count);
++	before_count = atomic_read_unchecked(&pci_parity_count);
+ 
+ 	/* scan all PCI devices looking for a Parity Error on devices and
+ 	 * bridges.
+@@ -684,7 +684,7 @@ void edac_pci_do_parity_check(void)
+ 	/* Only if operator has selected panic on PCI Error */
+ 	if (edac_pci_get_panic_on_pe()) {
+ 		/* If the count is different 'after' from 'before' */
+-		if (before_count != atomic_read(&pci_parity_count))
++		if (before_count != atomic_read_unchecked(&pci_parity_count))
+ 			panic("EDAC: PCI Parity Error");
+ 	}
+ }
+diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
+index 51b7e3a..aa8a3e8 100644
+--- a/drivers/edac/mce_amd.h
++++ b/drivers/edac/mce_amd.h
+@@ -77,7 +77,7 @@ struct amd_decoder_ops {
+ 	bool (*mc0_mce)(u16, u8);
+ 	bool (*mc1_mce)(u16, u8);
+ 	bool (*mc2_mce)(u16, u8);
+-};
++} __no_const;
+ 
+ void amd_report_gart_errors(bool);
+ void amd_register_ecc_decoder(void (*f)(int, struct mce *));
+diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
+index 57ea7f4..af06b76 100644
+--- a/drivers/firewire/core-card.c
++++ b/drivers/firewire/core-card.c
+@@ -528,9 +528,9 @@ void fw_card_initialize(struct fw_card *card,
+ 			const struct fw_card_driver *driver,
+ 			struct device *device)
+ {
+-	static atomic_t index = ATOMIC_INIT(-1);
++	static atomic_unchecked_t index = ATOMIC_INIT(-1);
+ 
+-	card->index = atomic_inc_return(&index);
++	card->index = atomic_inc_return_unchecked(&index);
+ 	card->driver = driver;
+ 	card->device = device;
+ 	card->current_tlabel = 0;
+@@ -680,7 +680,7 @@ EXPORT_SYMBOL_GPL(fw_card_release);
+ 
+ void fw_core_remove_card(struct fw_card *card)
+ {
+-	struct fw_card_driver dummy_driver = dummy_driver_template;
++	fw_card_driver_no_const dummy_driver = dummy_driver_template;
+ 
+ 	card->driver->update_phy_reg(card, 4,
+ 				     PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
+diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
+index 2c6d5e1..a2cca6b 100644
+--- a/drivers/firewire/core-device.c
++++ b/drivers/firewire/core-device.c
+@@ -253,7 +253,7 @@ EXPORT_SYMBOL(fw_device_enable_phys_dma);
+ struct config_rom_attribute {
+ 	struct device_attribute attr;
+ 	u32 key;
+-};
++} __do_const;
+ 
+ static ssize_t show_immediate(struct device *dev,
+ 			      struct device_attribute *dattr, char *buf)
+diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
+index eb6935c..3cc2bfa 100644
+--- a/drivers/firewire/core-transaction.c
++++ b/drivers/firewire/core-transaction.c
+@@ -38,6 +38,7 @@
+ #include <linux/timer.h>
+ #include <linux/types.h>
+ #include <linux/workqueue.h>
++#include <linux/sched.h>
+ 
+ #include <asm/byteorder.h>
+ 
+diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
+index f477308..2795f24 100644
+--- a/drivers/firewire/core.h
++++ b/drivers/firewire/core.h
+@@ -111,6 +111,7 @@ struct fw_card_driver {
+ 
+ 	int (*stop_iso)(struct fw_iso_context *ctx);
+ };
++typedef struct fw_card_driver __no_const fw_card_driver_no_const;
+ 
+ void fw_card_initialize(struct fw_card *card,
+ 		const struct fw_card_driver *driver, struct device *device);
+diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
+index 586f2f7..3545ad2 100644
+--- a/drivers/firewire/ohci.c
++++ b/drivers/firewire/ohci.c
+@@ -2049,10 +2049,12 @@ static void bus_reset_work(struct work_struct *work)
+ 			  be32_to_cpu(ohci->next_header));
+ 	}
+ 
++#ifndef CONFIG_GRKERNSEC
+ 	if (param_remote_dma) {
+ 		reg_write(ohci, OHCI1394_PhyReqFilterHiSet, ~0);
+ 		reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0);
+ 	}
++#endif
+ 
+ 	spin_unlock_irq(&ohci->lock);
+ 
+@@ -2584,8 +2586,10 @@ static int ohci_enable_phys_dma(struct fw_card *card,
+ 	unsigned long flags;
+ 	int n, ret = 0;
+ 
++#ifndef CONFIG_GRKERNSEC
+ 	if (param_remote_dma)
+ 		return 0;
++#endif
+ 
+ 	/*
+ 	 * FIXME:  Make sure this bitmask is cleared when we clear the busReset
+diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
+index 94a58a0..f5eba42 100644
+--- a/drivers/firmware/dmi-id.c
++++ b/drivers/firmware/dmi-id.c
+@@ -16,7 +16,7 @@
+ struct dmi_device_attribute{
+ 	struct device_attribute dev_attr;
+ 	int field;
+-};
++} __do_const;
+ #define to_dmi_dev_attr(_dev_attr) \
+ 	container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
+ 
+diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
+index 17afc51..0ef90cd 100644
+--- a/drivers/firmware/dmi_scan.c
++++ b/drivers/firmware/dmi_scan.c
+@@ -835,7 +835,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
+ 	if (buf == NULL)
+ 		return -1;
+ 
+-	dmi_table(buf, dmi_len, dmi_num, decode, private_data);
++	dmi_table((char __force_kernel *)buf, dmi_len, dmi_num, decode, private_data);
+ 
+ 	dmi_unmap(buf);
+ 	return 0;
+diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
+index 1491dd4..aa910db 100644
+--- a/drivers/firmware/efi/cper.c
++++ b/drivers/firmware/efi/cper.c
+@@ -41,12 +41,12 @@
+  */
+ u64 cper_next_record_id(void)
+ {
+-	static atomic64_t seq;
++	static atomic64_unchecked_t seq;
+ 
+-	if (!atomic64_read(&seq))
+-		atomic64_set(&seq, ((u64)get_seconds()) << 32);
++	if (!atomic64_read_unchecked(&seq))
++		atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32);
+ 
+-	return atomic64_inc_return(&seq);
++	return atomic64_inc_return_unchecked(&seq);
+ }
+ EXPORT_SYMBOL_GPL(cper_next_record_id);
+ 
+diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
+index 4753bac..02861a2 100644
+--- a/drivers/firmware/efi/efi.c
++++ b/drivers/firmware/efi/efi.c
+@@ -120,14 +120,16 @@ static struct attribute_group efi_subsys_attr_group = {
+ };
+ 
+ static struct efivars generic_efivars;
+-static struct efivar_operations generic_ops;
++static efivar_operations_no_const generic_ops __read_only;
+ 
+ static int generic_ops_register(void)
+ {
+-	generic_ops.get_variable = efi.get_variable;
+-	generic_ops.set_variable = efi.set_variable;
+-	generic_ops.get_next_variable = efi.get_next_variable;
+-	generic_ops.query_variable_store = efi_query_variable_store;
++	pax_open_kernel();
++	*(void **)&generic_ops.get_variable = efi.get_variable;
++	*(void **)&generic_ops.set_variable = efi.set_variable;
++	*(void **)&generic_ops.get_next_variable = efi.get_next_variable;
++	*(void **)&generic_ops.query_variable_store = efi_query_variable_store;
++	pax_close_kernel();
+ 
+ 	return efivars_register(&generic_efivars, &generic_ops, efi_kobj);
+ }
+diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
+index 3dc2482..7bd2f61 100644
+--- a/drivers/firmware/efi/efivars.c
++++ b/drivers/firmware/efi/efivars.c
+@@ -456,7 +456,7 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
+ static int
+ create_efivars_bin_attributes(void)
+ {
+-	struct bin_attribute *attr;
++	bin_attribute_no_const *attr;
+ 	int error;
+ 
+ 	/* new_var */
+diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c
+index c98b101..cc7bd25 100644
+--- a/drivers/firmware/efi/runtime-map.c
++++ b/drivers/firmware/efi/runtime-map.c
+@@ -97,7 +97,7 @@ static void map_release(struct kobject *kobj)
+ 	kfree(entry);
+ }
+ 
+-static struct kobj_type __refdata map_ktype = {
++static const struct kobj_type __refconst map_ktype = {
+ 	.sysfs_ops	= &map_attr_ops,
+ 	.default_attrs	= def_attrs,
+ 	.release	= map_release,
+diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
+index e5a67b2..77d6167 100644
+--- a/drivers/firmware/google/gsmi.c
++++ b/drivers/firmware/google/gsmi.c
+@@ -709,7 +709,7 @@ static u32 __init hash_oem_table_id(char s[8])
+ 	return local_hash_64(input, 32);
+ }
+ 
+-static struct dmi_system_id gsmi_dmi_table[] __initdata = {
++static const struct dmi_system_id gsmi_dmi_table[] __initconst = {
+ 	{
+ 		.ident = "Google Board",
+ 		.matches = {
+diff --git a/drivers/firmware/google/memconsole.c b/drivers/firmware/google/memconsole.c
+index 2a90ba6..72379aa 100644
+--- a/drivers/firmware/google/memconsole.c
++++ b/drivers/firmware/google/memconsole.c
+@@ -126,7 +126,7 @@ static bool found_memconsole(void)
+ 	return false;
+ }
+ 
+-static struct dmi_system_id memconsole_dmi_table[] __initdata = {
++static const struct dmi_system_id memconsole_dmi_table[] __initconst = {
+ 	{
+ 		.ident = "Google Board",
+ 		.matches = {
+@@ -147,7 +147,9 @@ static int __init memconsole_init(void)
+ 	if (!found_memconsole())
+ 		return -ENODEV;
+ 
+-	memconsole_bin_attr.size = memconsole_length;
++	pax_open_kernel();
++	*(size_t *)&memconsole_bin_attr.size = memconsole_length;
++	pax_close_kernel();
+ 
+ 	ret = sysfs_create_bin_file(firmware_kobj, &memconsole_bin_attr);
+ 
+diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
+index 17cf96c..0b11581 100644
+--- a/drivers/firmware/memmap.c
++++ b/drivers/firmware/memmap.c
+@@ -124,7 +124,7 @@ static void __meminit release_firmware_map_entry(struct kobject *kobj)
+ 	kfree(entry);
+ }
+ 
+-static struct kobj_type __refdata memmap_ktype = {
++static const struct kobj_type __refconst memmap_ktype = {
+ 	.release	= release_firmware_map_entry,
+ 	.sysfs_ops	= &memmap_attr_ops,
+ 	.default_attrs	= def_attrs,
+diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
+index 1e98a98..b444372 100644
+--- a/drivers/gpio/gpio-em.c
++++ b/drivers/gpio/gpio-em.c
+@@ -278,7 +278,7 @@ static int em_gio_probe(struct platform_device *pdev)
+ 	struct em_gio_priv *p;
+ 	struct resource *io[2], *irq[2];
+ 	struct gpio_chip *gpio_chip;
+-	struct irq_chip *irq_chip;
++	irq_chip_no_const *irq_chip;
+ 	const char *name = dev_name(&pdev->dev);
+ 	int ret;
+ 
+diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
+index f5bf3c3..7baaa59 100644
+--- a/drivers/gpio/gpio-ich.c
++++ b/drivers/gpio/gpio-ich.c
+@@ -71,7 +71,7 @@ struct ichx_desc {
+ 	/* Some chipsets have quirks, let these use their own request/get */
+ 	int (*request)(struct gpio_chip *chip, unsigned offset);
+ 	int (*get)(struct gpio_chip *chip, unsigned offset);
+-};
++} __do_const;
+ 
+ static struct {
+ 	spinlock_t lock;
+diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
+index ca76ce7..68b384b 100644
+--- a/drivers/gpio/gpio-rcar.c
++++ b/drivers/gpio/gpio-rcar.c
+@@ -355,7 +355,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
+ 	struct gpio_rcar_priv *p;
+ 	struct resource *io, *irq;
+ 	struct gpio_chip *gpio_chip;
+-	struct irq_chip *irq_chip;
++	irq_chip_no_const *irq_chip;
+ 	const char *name = dev_name(&pdev->dev);
+ 	int ret;
+ 
+diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
+index 9902732..64b62dd 100644
+--- a/drivers/gpio/gpio-vr41xx.c
++++ b/drivers/gpio/gpio-vr41xx.c
+@@ -204,7 +204,7 @@ static int giu_get_irq(unsigned int irq)
+ 	printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n",
+ 	       maskl, pendl, maskh, pendh);
+ 
+-	atomic_inc(&irq_err_count);
++	atomic_inc_unchecked(&irq_err_count);
+ 
+ 	return -EINVAL;
+ }
+diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
+index 3b7d32d..05c2f74 100644
+--- a/drivers/gpu/drm/drm_crtc.c
++++ b/drivers/gpu/drm/drm_crtc.c
+@@ -3123,7 +3123,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
+ 					goto done;
+ 				}
+ 
+-				if (copy_to_user(&enum_ptr[copied].name,
++				if (copy_to_user(enum_ptr[copied].name,
+ 						 &prop_enum->name, DRM_PROP_NAME_LEN)) {
+ 					ret = -EFAULT;
+ 					goto done;
+diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
+old mode 100644
+new mode 100755
+index 345be03..65b66c0
+--- a/drivers/gpu/drm/drm_drv.c
++++ b/drivers/gpu/drm/drm_drv.c
+@@ -233,7 +233,7 @@ module_exit(drm_core_exit);
+ /**
+  * Copy and IOCTL return string to user space
+  */
+-static int drm_copy_field(char *buf, size_t *buf_len, const char *value)
++static int drm_copy_field(char __user *buf, size_t *buf_len, const char *value)
+ {
+ 	int len;
+ 
+@@ -303,7 +303,7 @@ long drm_ioctl(struct file *filp,
+ 	struct drm_file *file_priv = filp->private_data;
+ 	struct drm_device *dev;
+ 	const struct drm_ioctl_desc *ioctl = NULL;
+-	drm_ioctl_t *func;
++	drm_ioctl_no_const_t func;
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+ 	int retcode = -EINVAL;
+ 	char stack_kdata[128];
+@@ -380,8 +380,9 @@ long drm_ioctl(struct file *filp,
+ 				retcode = -EFAULT;
+ 				goto err_i1;
+ 			}
+-		} else
++		} else if (cmd & IOC_OUT) {
+ 			memset(kdata, 0, usize);
++		}
+ 
+ 		if (ioctl->flags & DRM_UNLOCKED)
+ 			retcode = func(dev, kdata, file_priv);
+diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
+index 7f2af9a..1561914 100644
+--- a/drivers/gpu/drm/drm_fops.c
++++ b/drivers/gpu/drm/drm_fops.c
+@@ -97,7 +97,7 @@ int drm_open(struct inode *inode, struct file *filp)
+ 	if (drm_device_is_unplugged(dev))
+ 		return -ENODEV;
+ 
+-	if (!dev->open_count++)
++	if (local_inc_return(&dev->open_count) == 1)
+ 		need_setup = 1;
+ 	mutex_lock(&dev->struct_mutex);
+ 	old_imapping = inode->i_mapping;
+@@ -127,7 +127,7 @@ err_undo:
+ 	iput(container_of(dev->dev_mapping, struct inode, i_data));
+ 	dev->dev_mapping = old_mapping;
+ 	mutex_unlock(&dev->struct_mutex);
+-	dev->open_count--;
++	local_dec(&dev->open_count);
+ 	return retcode;
+ }
+ EXPORT_SYMBOL(drm_open);
+@@ -463,7 +463,7 @@ int drm_release(struct inode *inode, struct file *filp)
+ 
+ 	mutex_lock(&drm_global_mutex);
+ 
+-	DRM_DEBUG("open_count = %d\n", dev->open_count);
++	DRM_DEBUG("open_count = %ld\n", local_read(&dev->open_count));
+ 
+ 	if (dev->driver->preclose)
+ 		dev->driver->preclose(dev, file_priv);
+@@ -472,10 +472,10 @@ int drm_release(struct inode *inode, struct file *filp)
+ 	 * Begin inline drm_release
+ 	 */
+ 
+-	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
++	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %ld\n",
+ 		  task_pid_nr(current),
+ 		  (long)old_encode_dev(file_priv->minor->device),
+-		  dev->open_count);
++		  local_read(&dev->open_count));
+ 
+ 	/* Release any auth tokens that might point to this file_priv,
+ 	   (do that under the drm_global_mutex) */
+@@ -573,7 +573,7 @@ int drm_release(struct inode *inode, struct file *filp)
+ 	 * End inline drm_release
+ 	 */
+ 
+-	if (!--dev->open_count) {
++	if (local_dec_and_test(&dev->open_count)) {
+ 		retcode = drm_lastclose(dev);
+ 		if (drm_device_is_unplugged(dev))
+ 			drm_put_dev(dev);
+diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
+index 3d2e91c..d31c4c9 100644
+--- a/drivers/gpu/drm/drm_global.c
++++ b/drivers/gpu/drm/drm_global.c
+@@ -36,7 +36,7 @@
+ struct drm_global_item {
+ 	struct mutex mutex;
+ 	void *object;
+-	int refcount;
++	atomic_t refcount;
+ };
+ 
+ static struct drm_global_item glob[DRM_GLOBAL_NUM];
+@@ -49,7 +49,7 @@ void drm_global_init(void)
+ 		struct drm_global_item *item = &glob[i];
+ 		mutex_init(&item->mutex);
+ 		item->object = NULL;
+-		item->refcount = 0;
++		atomic_set(&item->refcount, 0);
+ 	}
+ }
+ 
+@@ -59,7 +59,7 @@ void drm_global_release(void)
+ 	for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
+ 		struct drm_global_item *item = &glob[i];
+ 		BUG_ON(item->object != NULL);
+-		BUG_ON(item->refcount != 0);
++		BUG_ON(atomic_read(&item->refcount) != 0);
+ 	}
+ }
+ 
+@@ -69,7 +69,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
+ 	struct drm_global_item *item = &glob[ref->global_type];
+ 
+ 	mutex_lock(&item->mutex);
+-	if (item->refcount == 0) {
++	if (atomic_read(&item->refcount) == 0) {
+ 		item->object = kzalloc(ref->size, GFP_KERNEL);
+ 		if (unlikely(item->object == NULL)) {
+ 			ret = -ENOMEM;
+@@ -82,7 +82,7 @@ int drm_global_item_ref(struct drm_global_reference *ref)
+ 			goto out_err;
+ 
+ 	}
+-	++item->refcount;
++	atomic_inc(&item->refcount);
+ 	ref->object = item->object;
+ 	mutex_unlock(&item->mutex);
+ 	return 0;
+@@ -98,9 +98,9 @@ void drm_global_item_unref(struct drm_global_reference *ref)
+ 	struct drm_global_item *item = &glob[ref->global_type];
+ 
+ 	mutex_lock(&item->mutex);
+-	BUG_ON(item->refcount == 0);
++	BUG_ON(atomic_read(&item->refcount) == 0);
+ 	BUG_ON(ref->object != item->object);
+-	if (--item->refcount == 0) {
++	if (atomic_dec_and_test(&item->refcount)) {
+ 		ref->release(ref);
+ 		item->object = NULL;
+ 	}
+diff --git a/drivers/gpu/drm/drm_info.c b/drivers/gpu/drm/drm_info.c
+index 7473035..a48b9c5 100644
+--- a/drivers/gpu/drm/drm_info.c
++++ b/drivers/gpu/drm/drm_info.c
+@@ -75,10 +75,13 @@ int drm_vm_info(struct seq_file *m, void *data)
+ 	struct drm_local_map *map;
+ 	struct drm_map_list *r_list;
+ 
+-	/* Hardcoded from _DRM_FRAME_BUFFER,
+-	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+-	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+-	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
++	static const char * const types[] = {
++		[_DRM_FRAME_BUFFER] = "FB",
++		[_DRM_REGISTERS] = "REG",
++		[_DRM_SHM] = "SHM",
++		[_DRM_AGP] = "AGP",
++		[_DRM_SCATTER_GATHER] = "SG",
++		[_DRM_CONSISTENT] = "PCI"};
+ 	const char *type;
+ 	int i;
+ 
+@@ -89,7 +92,7 @@ int drm_vm_info(struct seq_file *m, void *data)
+ 		map = r_list->map;
+ 		if (!map)
+ 			continue;
+-		if (map->type < 0 || map->type > 5)
++		if (map->type >= ARRAY_SIZE(types))
+ 			type = "??";
+ 		else
+ 			type = types[map->type];
+@@ -261,7 +264,11 @@ int drm_vma_info(struct seq_file *m, void *data)
+ 			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ 			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ 			   vma->vm_flags & VM_IO ? 'i' : '-',
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++			   0);
++#else
+ 			   vma->vm_pgoff);
++#endif
+ 
+ #if defined(__i386__)
+ 		pgprot = pgprot_val(vma->vm_page_prot);
+diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
+index 2f4c4343..dd12cd2 100644
+--- a/drivers/gpu/drm/drm_ioc32.c
++++ b/drivers/gpu/drm/drm_ioc32.c
+@@ -457,7 +457,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
+ 	request = compat_alloc_user_space(nbytes);
+ 	if (!access_ok(VERIFY_WRITE, request, nbytes))
+ 		return -EFAULT;
+-	list = (struct drm_buf_desc *) (request + 1);
++	list = (struct drm_buf_desc __user *) (request + 1);
+ 
+ 	if (__put_user(count, &request->count)
+ 	    || __put_user(list, &request->list))
+@@ -518,7 +518,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
+ 	request = compat_alloc_user_space(nbytes);
+ 	if (!access_ok(VERIFY_WRITE, request, nbytes))
+ 		return -EFAULT;
+-	list = (struct drm_buf_pub *) (request + 1);
++	list = (struct drm_buf_pub __user *) (request + 1);
+ 
+ 	if (__put_user(count, &request->count)
+ 	    || __put_user(list, &request->list))
+@@ -1016,7 +1016,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
+ 	return 0;
+ }
+ 
+-drm_ioctl_compat_t *drm_compat_ioctls[] = {
++drm_ioctl_compat_t drm_compat_ioctls[] = {
+ 	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
+ 	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
+ 	[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
+@@ -1062,7 +1062,6 @@ drm_ioctl_compat_t *drm_compat_ioctls[] = {
+ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+-	drm_ioctl_compat_t *fn;
+ 	int ret;
+ 
+ 	/* Assume that ioctls without an explicit compat routine will just
+@@ -1072,10 +1071,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ 	if (nr >= ARRAY_SIZE(drm_compat_ioctls))
+ 		return drm_ioctl(filp, cmd, arg);
+ 
+-	fn = drm_compat_ioctls[nr];
+-
+-	if (fn != NULL)
+-		ret = (*fn) (filp, cmd, arg);
++	if (drm_compat_ioctls[nr] != NULL)
++		ret = (*drm_compat_ioctls[nr]) (filp, cmd, arg);
+ 	else
+ 		ret = drm_ioctl(filp, cmd, arg);
+ 
+diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
+index 98a33c580..8fd1c2b 100644
+--- a/drivers/gpu/drm/drm_stub.c
++++ b/drivers/gpu/drm/drm_stub.c
+@@ -409,7 +409,7 @@ void drm_unplug_dev(struct drm_device *dev)
+ 
+ 	drm_device_set_unplugged(dev);
+ 
+-	if (dev->open_count == 0) {
++	if (local_read(&dev->open_count) == 0) {
+ 		drm_put_dev(dev);
+ 	}
+ 	mutex_unlock(&drm_global_mutex);
+diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
+index c22c309..ae758c3 100644
+--- a/drivers/gpu/drm/drm_sysfs.c
++++ b/drivers/gpu/drm/drm_sysfs.c
+@@ -505,7 +505,7 @@ static void drm_sysfs_release(struct device *dev)
+  */
+ int drm_sysfs_device_add(struct drm_minor *minor)
+ {
+-	char *minor_str;
++	const char *minor_str;
+ 	int r;
+ 
+ 	if (minor->type == DRM_MINOR_CONTROL)
+diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
+index d4d16ed..8fb0b51 100644
+--- a/drivers/gpu/drm/i810/i810_drv.h
++++ b/drivers/gpu/drm/i810/i810_drv.h
+@@ -108,8 +108,8 @@ typedef struct drm_i810_private {
+ 	int page_flipping;
+ 
+ 	wait_queue_head_t irq_queue;
+-	atomic_t irq_received;
+-	atomic_t irq_emitted;
++	atomic_unchecked_t irq_received;
++	atomic_unchecked_t irq_emitted;
+ 
+ 	int front_offset;
+ } drm_i810_private_t;
+diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
+index b2b46c5..feb9fe7 100644
+--- a/drivers/gpu/drm/i915/i915_debugfs.c
++++ b/drivers/gpu/drm/i915/i915_debugfs.c
+@@ -713,7 +713,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
+ 			   I915_READ(GTIMR));
+ 	}
+ 	seq_printf(m, "Interrupts received: %d\n",
+-		   atomic_read(&dev_priv->irq_received));
++		   atomic_read_unchecked(&dev_priv->irq_received));
+ 	for_each_ring(ring, dev_priv, i) {
+ 		if (INTEL_INFO(dev)->gen >= 6) {
+ 			seq_printf(m,
+diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
+index 15a74f9..4278889 100644
+--- a/drivers/gpu/drm/i915/i915_dma.c
++++ b/drivers/gpu/drm/i915/i915_dma.c
+@@ -1273,7 +1273,7 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
+ 	bool can_switch;
+ 
+ 	spin_lock(&dev->count_lock);
+-	can_switch = (dev->open_count == 0);
++	can_switch = (local_read(&dev->open_count) == 0);
+ 	spin_unlock(&dev->count_lock);
+ 	return can_switch;
+ }
+diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
+index 4677af9..cd79971 100644
+--- a/drivers/gpu/drm/i915/i915_drv.h
++++ b/drivers/gpu/drm/i915/i915_drv.h
+@@ -1362,7 +1362,7 @@ typedef struct drm_i915_private {
+ 	drm_dma_handle_t *status_page_dmah;
+ 	struct resource mch_res;
+ 
+-	atomic_t irq_received;
++	atomic_unchecked_t irq_received;
+ 
+ 	/* protects the irq masks */
+ 	spinlock_t irq_lock;
+diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+index 768e666..68cf44d 100644
+--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
++++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+@@ -860,9 +860,9 @@ i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec)
+ 
+ static int
+ validate_exec_list(struct drm_i915_gem_exec_object2 *exec,
+-		   int count)
++		   unsigned int count)
+ {
+-	int i;
++	unsigned int i;
+ 	unsigned relocs_total = 0;
+ 	unsigned relocs_max = UINT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
+ 
+diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
+index 3c59584..2708e91 100644
+--- a/drivers/gpu/drm/i915/i915_ioc32.c
++++ b/drivers/gpu/drm/i915/i915_ioc32.c
+@@ -62,7 +62,7 @@ static int compat_i915_batchbuffer(struct file *file, unsigned int cmd,
+ 	    || __put_user(batchbuffer32.DR4, &batchbuffer->DR4)
+ 	    || __put_user(batchbuffer32.num_cliprects,
+ 			  &batchbuffer->num_cliprects)
+-	    || __put_user((int __user *)(unsigned long)batchbuffer32.cliprects,
++	    || __put_user((struct drm_clip_rect __user *)(unsigned long)batchbuffer32.cliprects,
+ 			  &batchbuffer->cliprects))
+ 		return -EFAULT;
+ 
+@@ -91,13 +91,13 @@ static int compat_i915_cmdbuffer(struct file *file, unsigned int cmd,
+ 
+ 	cmdbuffer = compat_alloc_user_space(sizeof(*cmdbuffer));
+ 	if (!access_ok(VERIFY_WRITE, cmdbuffer, sizeof(*cmdbuffer))
+-	    || __put_user((int __user *)(unsigned long)cmdbuffer32.buf,
++	    || __put_user((char __user *)(unsigned long)cmdbuffer32.buf,
+ 			  &cmdbuffer->buf)
+ 	    || __put_user(cmdbuffer32.sz, &cmdbuffer->sz)
+ 	    || __put_user(cmdbuffer32.DR1, &cmdbuffer->DR1)
+ 	    || __put_user(cmdbuffer32.DR4, &cmdbuffer->DR4)
+ 	    || __put_user(cmdbuffer32.num_cliprects, &cmdbuffer->num_cliprects)
+-	    || __put_user((int __user *)(unsigned long)cmdbuffer32.cliprects,
++	    || __put_user((struct drm_clip_rect __user *)(unsigned long)cmdbuffer32.cliprects,
+ 			  &cmdbuffer->cliprects))
+ 		return -EFAULT;
+ 
+@@ -181,7 +181,7 @@ static int compat_i915_alloc(struct file *file, unsigned int cmd,
+ 			 (unsigned long)request);
+ }
+ 
+-static drm_ioctl_compat_t *i915_compat_ioctls[] = {
++static drm_ioctl_compat_t i915_compat_ioctls[] = {
+ 	[DRM_I915_BATCHBUFFER] = compat_i915_batchbuffer,
+ 	[DRM_I915_CMDBUFFER] = compat_i915_cmdbuffer,
+ 	[DRM_I915_GETPARAM] = compat_i915_getparam,
+@@ -202,17 +202,13 @@ static drm_ioctl_compat_t *i915_compat_ioctls[] = {
+ long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+-	drm_ioctl_compat_t *fn = NULL;
+ 	int ret;
+ 
+ 	if (nr < DRM_COMMAND_BASE)
+ 		return drm_compat_ioctl(filp, cmd, arg);
+ 
+-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
+-		fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
+-
+-	if (fn != NULL)
+-		ret = (*fn) (filp, cmd, arg);
++	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls) && i915_compat_ioctls[nr - DRM_COMMAND_BASE])
++		ret = (*i915_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
+ 	else
+ 		ret = drm_ioctl(filp, cmd, arg);
+ 
+diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
+index 4050450..f67c5c1 100644
+--- a/drivers/gpu/drm/i915/i915_irq.c
++++ b/drivers/gpu/drm/i915/i915_irq.c
+@@ -1448,7 +1448,7 @@ static irqreturn_t valleyview_irq_handler(int irq, void *arg)
+ 	int pipe;
+ 	u32 pipe_stats[I915_MAX_PIPES];
+ 
+-	atomic_inc(&dev_priv->irq_received);
++	atomic_inc_unchecked(&dev_priv->irq_received);
+ 
+ 	while (true) {
+ 		iir = I915_READ(VLV_IIR);
+@@ -1761,7 +1761,7 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg)
+ 	u32 de_iir, gt_iir, de_ier, sde_ier = 0;
+ 	irqreturn_t ret = IRQ_NONE;
+ 
+-	atomic_inc(&dev_priv->irq_received);
++	atomic_inc_unchecked(&dev_priv->irq_received);
+ 
+ 	/* We get interrupts on unclaimed registers, so check for this before we
+ 	 * do any I915_{READ,WRITE}. */
+@@ -1831,7 +1831,7 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
+ 	uint32_t tmp = 0;
+ 	enum pipe pipe;
+ 
+-	atomic_inc(&dev_priv->irq_received);
++	atomic_inc_unchecked(&dev_priv->irq_received);
+ 
+ 	master_ctl = I915_READ(GEN8_MASTER_IRQ);
+ 	master_ctl &= ~GEN8_MASTER_IRQ_CONTROL;
+@@ -2655,7 +2655,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev)
+ {
+ 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	I915_WRITE(HWSTAM, 0xeffe);
+ 
+@@ -2673,7 +2673,7 @@ static void valleyview_irq_preinstall(struct drm_device *dev)
+ 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ 	int pipe;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	/* VLV magic */
+ 	I915_WRITE(VLV_IMR, 0);
+@@ -2704,7 +2704,7 @@ static void gen8_irq_preinstall(struct drm_device *dev)
+ 	struct drm_i915_private *dev_priv = dev->dev_private;
+ 	int pipe;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	I915_WRITE(GEN8_MASTER_IRQ, 0);
+ 	POSTING_READ(GEN8_MASTER_IRQ);
+@@ -3028,7 +3028,7 @@ static void gen8_irq_uninstall(struct drm_device *dev)
+ 	if (!dev_priv)
+ 		return;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	I915_WRITE(GEN8_MASTER_IRQ, 0);
+ 
+@@ -3122,7 +3122,7 @@ static void i8xx_irq_preinstall(struct drm_device * dev)
+ 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ 	int pipe;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	for_each_pipe(pipe)
+ 		I915_WRITE(PIPESTAT(pipe), 0);
+@@ -3208,7 +3208,7 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg)
+ 		I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
+ 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
+ 
+-	atomic_inc(&dev_priv->irq_received);
++	atomic_inc_unchecked(&dev_priv->irq_received);
+ 
+ 	iir = I915_READ16(IIR);
+ 	if (iir == 0)
+@@ -3287,7 +3287,7 @@ static void i915_irq_preinstall(struct drm_device * dev)
+ 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ 	int pipe;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	if (I915_HAS_HOTPLUG(dev)) {
+ 		I915_WRITE(PORT_HOTPLUG_EN, 0);
+@@ -3394,7 +3394,7 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
+ 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
+ 	int pipe, ret = IRQ_NONE;
+ 
+-	atomic_inc(&dev_priv->irq_received);
++	atomic_inc_unchecked(&dev_priv->irq_received);
+ 
+ 	iir = I915_READ(IIR);
+ 	do {
+@@ -3521,7 +3521,7 @@ static void i965_irq_preinstall(struct drm_device * dev)
+ 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ 	int pipe;
+ 
+-	atomic_set(&dev_priv->irq_received, 0);
++	atomic_set_unchecked(&dev_priv->irq_received, 0);
+ 
+ 	I915_WRITE(PORT_HOTPLUG_EN, 0);
+ 	I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT));
+@@ -3637,7 +3637,7 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
+ 		I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT |
+ 		I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
+ 
+-	atomic_inc(&dev_priv->irq_received);
++	atomic_inc_unchecked(&dev_priv->irq_received);
+ 
+ 	iir = I915_READ(IIR);
+ 
+diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
+index c514690..84df88f 100644
+--- a/drivers/gpu/drm/i915/intel_display.c
++++ b/drivers/gpu/drm/i915/intel_display.c
+@@ -10796,13 +10796,13 @@ struct intel_quirk {
+ 	int subsystem_vendor;
+ 	int subsystem_device;
+ 	void (*hook)(struct drm_device *dev);
+-};
++} __do_const;
+ 
+ /* For systems that don't have a meaningful PCI subdevice/subvendor ID */
+ struct intel_dmi_quirk {
+ 	void (*hook)(struct drm_device *dev);
+ 	const struct dmi_system_id (*dmi_id_list)[];
+-};
++} __do_const;
+ 
+ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
+ {
+@@ -10810,18 +10810,20 @@ static int intel_dmi_reverse_brightness(const struct dmi_system_id *id)
+ 	return 1;
+ }
+ 
+-static const struct intel_dmi_quirk intel_dmi_quirks[] = {
++static const struct dmi_system_id intel_dmi_quirks_table[] = {
+ 	{
+-		.dmi_id_list = &(const struct dmi_system_id[]) {
+-			{
+-				.callback = intel_dmi_reverse_brightness,
+-				.ident = "NCR Corporation",
+-				.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
+-					    DMI_MATCH(DMI_PRODUCT_NAME, ""),
+-				},
+-			},
+-			{ }  /* terminating entry */
++		.callback = intel_dmi_reverse_brightness,
++		.ident = "NCR Corporation",
++		.matches = {DMI_MATCH(DMI_SYS_VENDOR, "NCR Corporation"),
++			    DMI_MATCH(DMI_PRODUCT_NAME, ""),
+ 		},
++	},
++	{ }  /* terminating entry */
++};
++
++static const struct intel_dmi_quirk intel_dmi_quirks[] = {
++	{
++		.dmi_id_list = &intel_dmi_quirks_table,
+ 		.hook = quirk_invert_brightness,
+ 	},
+ };
+diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
+index fe45321..836fdca 100644
+--- a/drivers/gpu/drm/mga/mga_drv.h
++++ b/drivers/gpu/drm/mga/mga_drv.h
+@@ -120,9 +120,9 @@ typedef struct drm_mga_private {
+ 	u32 clear_cmd;
+ 	u32 maccess;
+ 
+-	atomic_t vbl_received;          /**< Number of vblanks received. */
++	atomic_unchecked_t vbl_received;          /**< Number of vblanks received. */
+ 	wait_queue_head_t fence_queue;
+-	atomic_t last_fence_retired;
++	atomic_unchecked_t last_fence_retired;
+ 	u32 next_fence_to_post;
+ 
+ 	unsigned int fb_cpp;
+diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
+index 86b4bb8..d5ad960e2 100644
+--- a/drivers/gpu/drm/mga/mga_ioc32.c
++++ b/drivers/gpu/drm/mga/mga_ioc32.c
+@@ -190,7 +190,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
+ 	return 0;
+ }
+ 
+-drm_ioctl_compat_t *mga_compat_ioctls[] = {
++drm_ioctl_compat_t mga_compat_ioctls[] = {
+ 	[DRM_MGA_INIT] = compat_mga_init,
+ 	[DRM_MGA_GETPARAM] = compat_mga_getparam,
+ 	[DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_bootstrap,
+@@ -208,17 +208,13 @@ drm_ioctl_compat_t *mga_compat_ioctls[] = {
+ long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+-	drm_ioctl_compat_t *fn = NULL;
+ 	int ret;
+ 
+ 	if (nr < DRM_COMMAND_BASE)
+ 		return drm_compat_ioctl(filp, cmd, arg);
+ 
+-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
+-		fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
+-
+-	if (fn != NULL)
+-		ret = (*fn) (filp, cmd, arg);
++	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls) && mga_compat_ioctls[nr - DRM_COMMAND_BASE])
++		ret = (*mga_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
+ 	else
+ 		ret = drm_ioctl(filp, cmd, arg);
+ 
+diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
+index 1b071b8..de8601a 100644
+--- a/drivers/gpu/drm/mga/mga_irq.c
++++ b/drivers/gpu/drm/mga/mga_irq.c
+@@ -43,7 +43,7 @@ u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
+ 	if (crtc != 0)
+ 		return 0;
+ 
+-	return atomic_read(&dev_priv->vbl_received);
++	return atomic_read_unchecked(&dev_priv->vbl_received);
+ }
+ 
+ 
+@@ -59,7 +59,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
+ 	/* VBLANK interrupt */
+ 	if (status & MGA_VLINEPEN) {
+ 		MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
+-		atomic_inc(&dev_priv->vbl_received);
++		atomic_inc_unchecked(&dev_priv->vbl_received);
+ 		drm_handle_vblank(dev, 0);
+ 		handled = 1;
+ 	}
+@@ -78,7 +78,7 @@ irqreturn_t mga_driver_irq_handler(int irq, void *arg)
+ 		if ((prim_start & ~0x03) != (prim_end & ~0x03))
+ 			MGA_WRITE(MGA_PRIMEND, prim_end);
+ 
+-		atomic_inc(&dev_priv->last_fence_retired);
++		atomic_inc_unchecked(&dev_priv->last_fence_retired);
+ 		wake_up(&dev_priv->fence_queue);
+ 		handled = 1;
+ 	}
+@@ -129,7 +129,7 @@ int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
+ 	 * using fences.
+ 	 */
+ 	DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
+-		    (((cur_fence = atomic_read(&dev_priv->last_fence_retired))
++		    (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired))
+ 		      - *sequence) <= (1 << 23)));
+ 
+ 	*sequence = cur_fence;
+diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
+index 4c3feaa..26391ce 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
++++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
+@@ -965,7 +965,7 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
+ struct bit_table {
+ 	const char id;
+ 	int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
+-};
++} __no_const;
+ 
+ #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
+ 
+diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
+index 74ed08a..e81b8c5 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
++++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
+@@ -99,7 +99,6 @@ struct nouveau_drm {
+ 		struct drm_global_reference mem_global_ref;
+ 		struct ttm_bo_global_ref bo_global_ref;
+ 		struct ttm_bo_device bdev;
+-		atomic_t validate_sequence;
+ 		int (*move)(struct nouveau_channel *,
+ 			    struct ttm_buffer_object *,
+ 			    struct ttm_mem_reg *, struct ttm_mem_reg *);
+diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
+index c1a7e5a..38b8539 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
++++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
+@@ -50,7 +50,7 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
+ 			 unsigned long arg)
+ {
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+-	drm_ioctl_compat_t *fn = NULL;
++	drm_ioctl_compat_t fn = NULL;
+ 	int ret;
+ 
+ 	if (nr < DRM_COMMAND_BASE)
+diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
+index d45d50d..72a5dd2 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
++++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
+@@ -130,11 +130,11 @@ nouveau_vram_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
+ }
+ 
+ const struct ttm_mem_type_manager_func nouveau_vram_manager = {
+-	nouveau_vram_manager_init,
+-	nouveau_vram_manager_fini,
+-	nouveau_vram_manager_new,
+-	nouveau_vram_manager_del,
+-	nouveau_vram_manager_debug
++	.init = nouveau_vram_manager_init,
++	.takedown = nouveau_vram_manager_fini,
++	.get_node = nouveau_vram_manager_new,
++	.put_node = nouveau_vram_manager_del,
++	.debug = nouveau_vram_manager_debug
+ };
+ 
+ static int
+@@ -199,11 +199,11 @@ nouveau_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
+ }
+ 
+ const struct ttm_mem_type_manager_func nouveau_gart_manager = {
+-	nouveau_gart_manager_init,
+-	nouveau_gart_manager_fini,
+-	nouveau_gart_manager_new,
+-	nouveau_gart_manager_del,
+-	nouveau_gart_manager_debug
++	.init = nouveau_gart_manager_init,
++	.takedown = nouveau_gart_manager_fini,
++	.get_node = nouveau_gart_manager_new,
++	.put_node = nouveau_gart_manager_del,
++	.debug = nouveau_gart_manager_debug
+ };
+ 
+ #include <core/subdev/vm/nv04.h>
+@@ -271,11 +271,11 @@ nv04_gart_manager_debug(struct ttm_mem_type_manager *man, const char *prefix)
+ }
+ 
+ const struct ttm_mem_type_manager_func nv04_gart_manager = {
+-	nv04_gart_manager_init,
+-	nv04_gart_manager_fini,
+-	nv04_gart_manager_new,
+-	nv04_gart_manager_del,
+-	nv04_gart_manager_debug
++	.init = nv04_gart_manager_init,
++	.takedown = nv04_gart_manager_fini,
++	.get_node = nv04_gart_manager_new,
++	.put_node = nv04_gart_manager_del,
++	.debug = nv04_gart_manager_debug
+ };
+ 
+ int
+diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
+index a92fb01..35e0602 100644
+--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
++++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
+@@ -67,7 +67,7 @@ nouveau_switcheroo_can_switch(struct pci_dev *pdev)
+ 	bool can_switch;
+ 
+ 	spin_lock(&dev->count_lock);
+-	can_switch = (dev->open_count == 0);
++	can_switch = (local_read(&dev->open_count) == 0);
+ 	spin_unlock(&dev->count_lock);
+ 	return can_switch;
+ }
+diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
+index eb89653..613cf71 100644
+--- a/drivers/gpu/drm/qxl/qxl_cmd.c
++++ b/drivers/gpu/drm/qxl/qxl_cmd.c
+@@ -285,27 +285,27 @@ static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port,
+ 	int ret;
+ 
+ 	mutex_lock(&qdev->async_io_mutex);
+-	irq_num = atomic_read(&qdev->irq_received_io_cmd);
++	irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
+ 	if (qdev->last_sent_io_cmd > irq_num) {
+ 		if (intr)
+ 			ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
+-							       atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
++							       atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ 		else
+ 			ret = wait_event_timeout(qdev->io_cmd_event,
+-						 atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
++						 atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ 		/* 0 is timeout, just bail the "hw" has gone away */
+ 		if (ret <= 0)
+ 			goto out;
+-		irq_num = atomic_read(&qdev->irq_received_io_cmd);
++		irq_num = atomic_read_unchecked(&qdev->irq_received_io_cmd);
+ 	}
+ 	outb(val, addr);
+ 	qdev->last_sent_io_cmd = irq_num + 1;
+ 	if (intr)
+ 		ret = wait_event_interruptible_timeout(qdev->io_cmd_event,
+-						       atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
++						       atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ 	else
+ 		ret = wait_event_timeout(qdev->io_cmd_event,
+-					 atomic_read(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
++					 atomic_read_unchecked(&qdev->irq_received_io_cmd) > irq_num, 5*HZ);
+ out:
+ 	if (ret > 0)
+ 		ret = 0;
+diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
+index c3c2bbd..bc3c0fb 100644
+--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
++++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
+@@ -42,10 +42,10 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
+ 	struct drm_info_node *node = (struct drm_info_node *) m->private;
+ 	struct qxl_device *qdev = node->minor->dev->dev_private;
+ 
+-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
+-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
+-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
+-	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
++	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received));
++	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_display));
++	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_cursor));
++	seq_printf(m, "%d\n", atomic_read_unchecked(&qdev->irq_received_io_cmd));
+ 	seq_printf(m, "%d\n", qdev->irq_received_error);
+ 	return 0;
+ }
+diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
+index 36ed40b..0397633 100644
+--- a/drivers/gpu/drm/qxl/qxl_drv.h
++++ b/drivers/gpu/drm/qxl/qxl_drv.h
+@@ -290,10 +290,10 @@ struct qxl_device {
+ 	unsigned int last_sent_io_cmd;
+ 
+ 	/* interrupt handling */
+-	atomic_t irq_received;
+-	atomic_t irq_received_display;
+-	atomic_t irq_received_cursor;
+-	atomic_t irq_received_io_cmd;
++	atomic_unchecked_t irq_received;
++	atomic_unchecked_t irq_received_display;
++	atomic_unchecked_t irq_received_cursor;
++	atomic_unchecked_t irq_received_io_cmd;
+ 	unsigned irq_received_error;
+ 	wait_queue_head_t display_event;
+ 	wait_queue_head_t cursor_event;
+diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
+index 0bb86e6..d41416d 100644
+--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
++++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
+@@ -181,7 +181,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
+ 
+ 	/* TODO copy slow path code from i915 */
+ 	fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
+-	unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);
++	unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void __force_user *)(unsigned long)cmd->command, cmd->command_size);
+ 
+ 	{
+ 		struct qxl_drawable *draw = fb_cmd;
+@@ -201,7 +201,7 @@ static int qxl_process_single_command(struct qxl_device *qdev,
+ 		struct drm_qxl_reloc reloc;
+ 
+ 		if (copy_from_user(&reloc,
+-				       &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
++				       &((struct drm_qxl_reloc __force_user *)(uintptr_t)cmd->relocs)[i],
+ 				       sizeof(reloc))) {
+ 			ret = -EFAULT;
+ 			goto out_free_bos;
+@@ -294,10 +294,10 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
+ 
+ 	for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
+ 
+-		struct drm_qxl_command *commands =
+-			(struct drm_qxl_command *)(uintptr_t)execbuffer->commands;
++		struct drm_qxl_command __user *commands =
++			(struct drm_qxl_command __user *)(uintptr_t)execbuffer->commands;
+ 
+-		if (copy_from_user(&user_cmd, &commands[cmd_num],
++		if (copy_from_user(&user_cmd, (struct drm_qxl_command __force_user *)&commands[cmd_num],
+ 				       sizeof(user_cmd)))
+ 			return -EFAULT;
+ 
+diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
+index 3485bdc..20d26e3 100644
+--- a/drivers/gpu/drm/qxl/qxl_irq.c
++++ b/drivers/gpu/drm/qxl/qxl_irq.c
+@@ -36,19 +36,19 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
+ 	if (!pending)
+ 		return IRQ_NONE;
+ 
+-	atomic_inc(&qdev->irq_received);
++	atomic_inc_unchecked(&qdev->irq_received);
+ 
+ 	if (pending & QXL_INTERRUPT_DISPLAY) {
+-		atomic_inc(&qdev->irq_received_display);
++		atomic_inc_unchecked(&qdev->irq_received_display);
+ 		wake_up_all(&qdev->display_event);
+ 		qxl_queue_garbage_collect(qdev, false);
+ 	}
+ 	if (pending & QXL_INTERRUPT_CURSOR) {
+-		atomic_inc(&qdev->irq_received_cursor);
++		atomic_inc_unchecked(&qdev->irq_received_cursor);
+ 		wake_up_all(&qdev->cursor_event);
+ 	}
+ 	if (pending & QXL_INTERRUPT_IO_CMD) {
+-		atomic_inc(&qdev->irq_received_io_cmd);
++		atomic_inc_unchecked(&qdev->irq_received_io_cmd);
+ 		wake_up_all(&qdev->io_cmd_event);
+ 	}
+ 	if (pending & QXL_INTERRUPT_ERROR) {
+@@ -85,10 +85,10 @@ int qxl_irq_init(struct qxl_device *qdev)
+ 	init_waitqueue_head(&qdev->io_cmd_event);
+ 	INIT_WORK(&qdev->client_monitors_config_work,
+ 		  qxl_client_monitors_config_work_func);
+-	atomic_set(&qdev->irq_received, 0);
+-	atomic_set(&qdev->irq_received_display, 0);
+-	atomic_set(&qdev->irq_received_cursor, 0);
+-	atomic_set(&qdev->irq_received_io_cmd, 0);
++	atomic_set_unchecked(&qdev->irq_received, 0);
++	atomic_set_unchecked(&qdev->irq_received_display, 0);
++	atomic_set_unchecked(&qdev->irq_received_cursor, 0);
++	atomic_set_unchecked(&qdev->irq_received_io_cmd, 0);
+ 	qdev->irq_received_error = 0;
+ 	ret = drm_irq_install(qdev->ddev);
+ 	qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
+diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
+index c82c1d6a9..6158c02 100644
+--- a/drivers/gpu/drm/qxl/qxl_ttm.c
++++ b/drivers/gpu/drm/qxl/qxl_ttm.c
+@@ -103,7 +103,7 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev)
+ 	}
+ }
+ 
+-static struct vm_operations_struct qxl_ttm_vm_ops;
++static vm_operations_struct_no_const qxl_ttm_vm_ops __read_only;
+ static const struct vm_operations_struct *ttm_vm_ops;
+ 
+ static int qxl_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+@@ -147,8 +147,10 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
+ 		return r;
+ 	if (unlikely(ttm_vm_ops == NULL)) {
+ 		ttm_vm_ops = vma->vm_ops;
++		pax_open_kernel();
+ 		qxl_ttm_vm_ops = *ttm_vm_ops;
+ 		qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
++		pax_close_kernel();
+ 	}
+ 	vma->vm_ops = &qxl_ttm_vm_ops;
+ 	return 0;
+@@ -561,25 +563,23 @@ static int qxl_mm_dump_table(struct seq_file *m, void *data)
+ static int qxl_ttm_debugfs_init(struct qxl_device *qdev)
+ {
+ #if defined(CONFIG_DEBUG_FS)
+-	static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
+-	static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
+-	unsigned i;
++	static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES] = {
++		{
++			.name = "qxl_mem_mm",
++			.show = &qxl_mm_dump_table,
++		},
++		{
++			.name = "qxl_surf_mm",
++			.show = &qxl_mm_dump_table,
++		}
++	};
+ 
+-	for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
+-		if (i == 0)
+-			sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
+-		else
+-			sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
+-		qxl_mem_types_list[i].name = qxl_mem_types_names[i];
+-		qxl_mem_types_list[i].show = &qxl_mm_dump_table;
+-		qxl_mem_types_list[i].driver_features = 0;
+-		if (i == 0)
+-			qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
+-		else
+-			qxl_mem_types_list[i].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
++	pax_open_kernel();
++	*(void **)&qxl_mem_types_list[0].data = qdev->mman.bdev.man[TTM_PL_VRAM].priv;
++	*(void **)&qxl_mem_types_list[1].data = qdev->mman.bdev.man[TTM_PL_PRIV0].priv;
++	pax_close_kernel();
+ 
+-	}
+-	return qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);
++	return qxl_debugfs_add_files(qdev, qxl_mem_types_list, QXL_DEBUGFS_MEM_TYPES);
+ #else
+ 	return 0;
+ #endif
+diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
+index 59459fe..be26b31 100644
+--- a/drivers/gpu/drm/r128/r128_cce.c
++++ b/drivers/gpu/drm/r128/r128_cce.c
+@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
+ 
+ 	/* GH: Simple idle check.
+ 	 */
+-	atomic_set(&dev_priv->idle_count, 0);
++	atomic_set_unchecked(&dev_priv->idle_count, 0);
+ 
+ 	/* We don't support anything other than bus-mastering ring mode,
+ 	 * but the ring can be in either AGP or PCI space for the ring
+diff --git a/drivers/gpu/drm/r128/r128_drv.h b/drivers/gpu/drm/r128/r128_drv.h
+index 5bf3f5f..7000661 100644
+--- a/drivers/gpu/drm/r128/r128_drv.h
++++ b/drivers/gpu/drm/r128/r128_drv.h
+@@ -90,14 +90,14 @@ typedef struct drm_r128_private {
+ 	int is_pci;
+ 	unsigned long cce_buffers_offset;
+ 
+-	atomic_t idle_count;
++	atomic_unchecked_t idle_count;
+ 
+ 	int page_flipping;
+ 	int current_page;
+ 	u32 crtc_offset;
+ 	u32 crtc_offset_cntl;
+ 
+-	atomic_t vbl_received;
++	atomic_unchecked_t vbl_received;
+ 
+ 	u32 color_fmt;
+ 	unsigned int front_offset;
+diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
+index b0d0fd3..7fe3706 100644
+--- a/drivers/gpu/drm/r128/r128_ioc32.c
++++ b/drivers/gpu/drm/r128/r128_ioc32.c
+@@ -178,7 +178,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
+ 	return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
+ }
+ 
+-drm_ioctl_compat_t *r128_compat_ioctls[] = {
++drm_ioctl_compat_t r128_compat_ioctls[] = {
+ 	[DRM_R128_INIT] = compat_r128_init,
+ 	[DRM_R128_DEPTH] = compat_r128_depth,
+ 	[DRM_R128_STIPPLE] = compat_r128_stipple,
+@@ -197,17 +197,13 @@ drm_ioctl_compat_t *r128_compat_ioctls[] = {
+ long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+-	drm_ioctl_compat_t *fn = NULL;
+ 	int ret;
+ 
+ 	if (nr < DRM_COMMAND_BASE)
+ 		return drm_compat_ioctl(filp, cmd, arg);
+ 
+-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls))
+-		fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
+-
+-	if (fn != NULL)
+-		ret = (*fn) (filp, cmd, arg);
++	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls) && r128_compat_ioctls[nr - DRM_COMMAND_BASE])
++		ret = (*r128_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
+ 	else
+ 		ret = drm_ioctl(filp, cmd, arg);
+ 
+diff --git a/drivers/gpu/drm/r128/r128_irq.c b/drivers/gpu/drm/r128/r128_irq.c
+index c2ae496..30b5993 100644
+--- a/drivers/gpu/drm/r128/r128_irq.c
++++ b/drivers/gpu/drm/r128/r128_irq.c
+@@ -41,7 +41,7 @@ u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
+ 	if (crtc != 0)
+ 		return 0;
+ 
+-	return atomic_read(&dev_priv->vbl_received);
++	return atomic_read_unchecked(&dev_priv->vbl_received);
+ }
+ 
+ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
+@@ -55,7 +55,7 @@ irqreturn_t r128_driver_irq_handler(int irq, void *arg)
+ 	/* VBLANK interrupt */
+ 	if (status & R128_CRTC_VBLANK_INT) {
+ 		R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
+-		atomic_inc(&dev_priv->vbl_received);
++		atomic_inc_unchecked(&dev_priv->vbl_received);
+ 		drm_handle_vblank(dev, 0);
+ 		return IRQ_HANDLED;
+ 	}
+diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c
+index e806dac..f81d32f 100644
+--- a/drivers/gpu/drm/r128/r128_state.c
++++ b/drivers/gpu/drm/r128/r128_state.c
+@@ -320,10 +320,10 @@ static void r128_clear_box(drm_r128_private_t *dev_priv,
+ 
+ static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv)
+ {
+-	if (atomic_read(&dev_priv->idle_count) == 0)
++	if (atomic_read_unchecked(&dev_priv->idle_count) == 0)
+ 		r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0);
+ 	else
+-		atomic_set(&dev_priv->idle_count, 0);
++		atomic_set_unchecked(&dev_priv->idle_count, 0);
+ }
+ 
+ #endif
+diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
+index 4a85bb6..aaea819 100644
+--- a/drivers/gpu/drm/radeon/mkregtable.c
++++ b/drivers/gpu/drm/radeon/mkregtable.c
+@@ -624,14 +624,14 @@ static int parser_auth(struct table *t, const char *filename)
+ 	regex_t mask_rex;
+ 	regmatch_t match[4];
+ 	char buf[1024];
+-	size_t end;
++	long end;
+ 	int len;
+ 	int done = 0;
+ 	int r;
+ 	unsigned o;
+ 	struct offset *offset;
+ 	char last_reg_s[10];
+-	int last_reg;
++	unsigned long last_reg;
+ 
+ 	if (regcomp
+ 	    (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) {
+diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
+index 129915e..af52907 100644
+--- a/drivers/gpu/drm/radeon/radeon_device.c
++++ b/drivers/gpu/drm/radeon/radeon_device.c
+@@ -1128,7 +1128,7 @@ static bool radeon_switcheroo_can_switch(struct pci_dev *pdev)
+ 	bool can_switch;
+ 
+ 	spin_lock(&dev->count_lock);
+-	can_switch = (dev->open_count == 0);
++	can_switch = (local_read(&dev->open_count) == 0);
+ 	spin_unlock(&dev->count_lock);
+ 	return can_switch;
+ }
+diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
+index dafd812..1bf20c7 100644
+--- a/drivers/gpu/drm/radeon/radeon_drv.h
++++ b/drivers/gpu/drm/radeon/radeon_drv.h
+@@ -262,7 +262,7 @@ typedef struct drm_radeon_private {
+ 
+ 	/* SW interrupt */
+ 	wait_queue_head_t swi_queue;
+-	atomic_t swi_emitted;
++	atomic_unchecked_t swi_emitted;
+ 	int vblank_crtc;
+ 	uint32_t irq_enable_reg;
+ 	uint32_t r500_disp_irq_reg;
+diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
+index bdb0f93..b83eb47 100644
+--- a/drivers/gpu/drm/radeon/radeon_ioc32.c
++++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
+@@ -358,7 +358,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
+ 	request = compat_alloc_user_space(sizeof(*request));
+ 	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
+ 	    || __put_user(req32.param, &request->param)
+-	    || __put_user((void __user *)(unsigned long)req32.value,
++	    || __put_user((unsigned long)req32.value,
+ 			  &request->value))
+ 		return -EFAULT;
+ 
+@@ -368,7 +368,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
+ #define compat_radeon_cp_setparam NULL
+ #endif /* X86_64 || IA64 */
+ 
+-static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
++static drm_ioctl_compat_t radeon_compat_ioctls[] = {
+ 	[DRM_RADEON_CP_INIT] = compat_radeon_cp_init,
+ 	[DRM_RADEON_CLEAR] = compat_radeon_cp_clear,
+ 	[DRM_RADEON_STIPPLE] = compat_radeon_cp_stipple,
+@@ -393,17 +393,13 @@ static drm_ioctl_compat_t *radeon_compat_ioctls[] = {
+ long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ 	unsigned int nr = DRM_IOCTL_NR(cmd);
+-	drm_ioctl_compat_t *fn = NULL;
+ 	int ret;
+ 
+ 	if (nr < DRM_COMMAND_BASE)
+ 		return drm_compat_ioctl(filp, cmd, arg);
+ 
+-	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls))
+-		fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
+-
+-	if (fn != NULL)
+-		ret = (*fn) (filp, cmd, arg);
++	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls) && radeon_compat_ioctls[nr - DRM_COMMAND_BASE])
++		ret = (*radeon_compat_ioctls[nr - DRM_COMMAND_BASE]) (filp, cmd, arg);
+ 	else
+ 		ret = drm_ioctl(filp, cmd, arg);
+ 
+diff --git a/drivers/gpu/drm/radeon/radeon_irq.c b/drivers/gpu/drm/radeon/radeon_irq.c
+index 244b19b..c19226d 100644
+--- a/drivers/gpu/drm/radeon/radeon_irq.c
++++ b/drivers/gpu/drm/radeon/radeon_irq.c
+@@ -226,8 +226,8 @@ static int radeon_emit_irq(struct drm_device * dev)
+ 	unsigned int ret;
+ 	RING_LOCALS;
+ 
+-	atomic_inc(&dev_priv->swi_emitted);
+-	ret = atomic_read(&dev_priv->swi_emitted);
++	atomic_inc_unchecked(&dev_priv->swi_emitted);
++	ret = atomic_read_unchecked(&dev_priv->swi_emitted);
+ 
+ 	BEGIN_RING(4);
+ 	OUT_RING_REG(RADEON_LAST_SWI_REG, ret);
+@@ -353,7 +353,7 @@ int radeon_driver_irq_postinstall(struct drm_device *dev)
+ 	drm_radeon_private_t *dev_priv =
+ 	    (drm_radeon_private_t *) dev->dev_private;
+ 
+-	atomic_set(&dev_priv->swi_emitted, 0);
++	atomic_set_unchecked(&dev_priv->swi_emitted, 0);
+ 	init_waitqueue_head(&dev_priv->swi_queue);
+ 
+ 	dev->max_vblank_count = 0x001fffff;
+diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
+index 956ab7f..fbd36d8 100644
+--- a/drivers/gpu/drm/radeon/radeon_state.c
++++ b/drivers/gpu/drm/radeon/radeon_state.c
+@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_device *dev, void *data, struct drm_file *
+ 	if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
+ 		sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
+ 
+-	if (copy_from_user(&depth_boxes, clear->depth_boxes,
++	if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || copy_from_user(&depth_boxes, clear->depth_boxes,
+ 			       sarea_priv->nbox * sizeof(depth_boxes[0])))
+ 		return -EFAULT;
+ 
+@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm_device *dev, void *data, struct drm_fil
+ {
+ 	drm_radeon_private_t *dev_priv = dev->dev_private;
+ 	drm_radeon_getparam_t *param = data;
+-	int value;
++	int value = 0;
+ 
+ 	DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
+ 
+diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
+index 45a9a03..3cadf87 100644
+--- a/drivers/gpu/drm/radeon/radeon_ttm.c
++++ b/drivers/gpu/drm/radeon/radeon_ttm.c
+@@ -790,7 +790,7 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size)
+ 	man->size = size >> PAGE_SHIFT;
+ }
+ 
+-static struct vm_operations_struct radeon_ttm_vm_ops;
++static vm_operations_struct_no_const radeon_ttm_vm_ops __read_only;
+ static const struct vm_operations_struct *ttm_vm_ops = NULL;
+ 
+ static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+@@ -831,8 +831,10 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
+ 	}
+ 	if (unlikely(ttm_vm_ops == NULL)) {
+ 		ttm_vm_ops = vma->vm_ops;
++		pax_open_kernel();
+ 		radeon_ttm_vm_ops = *ttm_vm_ops;
+ 		radeon_ttm_vm_ops.fault = &radeon_ttm_fault;
++		pax_close_kernel();
+ 	}
+ 	vma->vm_ops = &radeon_ttm_vm_ops;
+ 	return 0;
+diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
+index 9336006..ce78aa7 100644
+--- a/drivers/gpu/drm/tegra/dc.c
++++ b/drivers/gpu/drm/tegra/dc.c
+@@ -1057,7 +1057,7 @@ static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor)
+ 	}
+ 
+ 	for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)
+-		dc->debugfs_files[i].data = dc;
++		*(void **)&dc->debugfs_files[i].data = dc;
+ 
+ 	err = drm_debugfs_create_files(dc->debugfs_files,
+ 				       ARRAY_SIZE(debugfs_files),
+diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
+index d452faab..f8cbc6a 100644
+--- a/drivers/gpu/drm/tegra/dsi.c
++++ b/drivers/gpu/drm/tegra/dsi.c
+@@ -53,7 +53,7 @@ struct tegra_dsi {
+ 	struct clk *clk_lp;
+ 	struct clk *clk;
+ 
+-	struct drm_info_list *debugfs_files;
++	drm_info_list_no_const *debugfs_files;
+ 	struct drm_minor *minor;
+ 	struct dentry *debugfs;
+ 
+diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
+index 6928015..c9853e7 100644
+--- a/drivers/gpu/drm/tegra/hdmi.c
++++ b/drivers/gpu/drm/tegra/hdmi.c
+@@ -59,7 +59,7 @@ struct tegra_hdmi {
+ 	bool stereo;
+ 	bool dvi;
+ 
+-	struct drm_info_list *debugfs_files;
++	drm_info_list_no_const *debugfs_files;
+ 	struct drm_minor *minor;
+ 	struct dentry *debugfs;
+ };
+diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
+index c58eba33..83c2728 100644
+--- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
++++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
+@@ -141,10 +141,10 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
+ }
+ 
+ const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
+-	ttm_bo_man_init,
+-	ttm_bo_man_takedown,
+-	ttm_bo_man_get_node,
+-	ttm_bo_man_put_node,
+-	ttm_bo_man_debug
++	.init = ttm_bo_man_init,
++	.takedown = ttm_bo_man_takedown,
++	.get_node = ttm_bo_man_get_node,
++	.put_node = ttm_bo_man_put_node,
++	.debug = ttm_bo_man_debug
+ };
+ EXPORT_SYMBOL(ttm_bo_manager_func);
+diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
+index dbc2def..0a9f710 100644
+--- a/drivers/gpu/drm/ttm/ttm_memory.c
++++ b/drivers/gpu/drm/ttm/ttm_memory.c
+@@ -264,7 +264,7 @@ static int ttm_mem_init_kernel_zone(struct ttm_mem_global *glob,
+ 	zone->glob = glob;
+ 	glob->zone_kernel = zone;
+ 	ret = kobject_init_and_add(
+-		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
++		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
+ 	if (unlikely(ret != 0)) {
+ 		kobject_put(&zone->kobj);
+ 		return ret;
+@@ -347,7 +347,7 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
+ 	zone->glob = glob;
+ 	glob->zone_dma32 = zone;
+ 	ret = kobject_init_and_add(
+-		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, zone->name);
++		&zone->kobj, &ttm_mem_zone_kobj_type, &glob->kobj, "%s", zone->name);
+ 	if (unlikely(ret != 0)) {
+ 		kobject_put(&zone->kobj);
+ 		return ret;
+diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
+index 76329d2..9c422dd 100644
+--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
++++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
+@@ -54,7 +54,7 @@
+ 
+ #define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
+ #define SMALL_ALLOCATION		16
+-#define FREE_ALL_PAGES			(~0U)
++#define FREE_ALL_PAGES			(~0UL)
+ /* times are in msecs */
+ #define PAGE_FREE_INTERVAL		1000
+ 
+@@ -299,15 +299,14 @@ static void ttm_pool_update_free_locked(struct ttm_page_pool *pool,
+  * @free_all: If set to true will free all pages in pool
+  * @use_static: Safe to use static buffer
+  **/
+-static int ttm_page_pool_free(struct ttm_page_pool *pool, unsigned nr_free,
++static unsigned long ttm_page_pool_free(struct ttm_page_pool *pool, unsigned long nr_free,
+ 			      bool use_static)
+ {
+ 	static struct page *static_buf[NUM_PAGES_TO_ALLOC];
+ 	unsigned long irq_flags;
+ 	struct page *p;
+ 	struct page **pages_to_free;
+-	unsigned freed_pages = 0,
+-		 npages_to_free = nr_free;
++	unsigned long freed_pages = 0, npages_to_free = nr_free;
+ 
+ 	if (NUM_PAGES_TO_ALLOC < nr_free)
+ 		npages_to_free = NUM_PAGES_TO_ALLOC;
+@@ -371,7 +370,8 @@ restart:
+ 		__list_del(&p->lru, &pool->list);
+ 
+ 		ttm_pool_update_free_locked(pool, freed_pages);
+-		nr_free -= freed_pages;
++		if (likely(nr_free != FREE_ALL_PAGES))
++			nr_free -= freed_pages;
+ 	}
+ 
+ 	spin_unlock_irqrestore(&pool->lock, irq_flags);
+@@ -399,7 +399,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
+ 	unsigned i;
+ 	unsigned pool_offset;
+ 	struct ttm_page_pool *pool;
+-	int shrink_pages = sc->nr_to_scan;
++	unsigned long shrink_pages = sc->nr_to_scan;
+ 	unsigned long freed = 0;
+ 
+ 	if (!mutex_trylock(&lock))
+@@ -407,7 +407,7 @@ ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
+ 	pool_offset = ++start_pool % NUM_POOLS;
+ 	/* select start pool in round robin fashion */
+ 	for (i = 0; i < NUM_POOLS; ++i) {
+-		unsigned nr_free = shrink_pages;
++		unsigned long nr_free = shrink_pages;
+ 		if (shrink_pages == 0)
+ 			break;
+ 		pool = &_manager->pools[(i + pool_offset)%NUM_POOLS];
+@@ -673,7 +673,7 @@ out:
+ }
+ 
+ /* Put all pages in pages list to correct pool to wait for reuse */
+-static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
++static void ttm_put_pages(struct page **pages, unsigned long npages, int flags,
+ 			  enum ttm_caching_state cstate)
+ {
+ 	unsigned long irq_flags;
+@@ -728,7 +728,7 @@ static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
+ 	struct list_head plist;
+ 	struct page *p = NULL;
+ 	gfp_t gfp_flags = GFP_USER;
+-	unsigned count;
++	unsigned long count;
+ 	int r;
+ 
+ 	/* set zero flag for page allocation if required */
+diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+index 3dfa97d..44bfcb7 100644
+--- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
++++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
+@@ -56,7 +56,7 @@
+ 
+ #define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
+ #define SMALL_ALLOCATION		4
+-#define FREE_ALL_PAGES			(~0U)
++#define FREE_ALL_PAGES			(~0UL)
+ /* times are in msecs */
+ #define IS_UNDEFINED			(0)
+ #define IS_WC				(1<<1)
+@@ -413,7 +413,7 @@ static void ttm_dma_page_put(struct dma_pool *pool, struct dma_page *d_page)
+  * @nr_free: If set to true will free all pages in pool
+  * @use_static: Safe to use static buffer
+  **/
+-static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
++static unsigned long ttm_dma_page_pool_free(struct dma_pool *pool, unsigned long nr_free,
+ 				       bool use_static)
+ {
+ 	static struct page *static_buf[NUM_PAGES_TO_ALLOC];
+@@ -421,8 +421,7 @@ static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free,
+ 	struct dma_page *dma_p, *tmp;
+ 	struct page **pages_to_free;
+ 	struct list_head d_pages;
+-	unsigned freed_pages = 0,
+-		 npages_to_free = nr_free;
++	unsigned long freed_pages = 0, npages_to_free = nr_free;
+ 
+ 	if (NUM_PAGES_TO_ALLOC < nr_free)
+ 		npages_to_free = NUM_PAGES_TO_ALLOC;
+@@ -499,7 +498,8 @@ restart:
+ 	/* remove range of pages from the pool */
+ 	if (freed_pages) {
+ 		ttm_pool_update_free_locked(pool, freed_pages);
+-		nr_free -= freed_pages;
++		if (likely(nr_free != FREE_ALL_PAGES))
++			nr_free -= freed_pages;
+ 	}
+ 
+ 	spin_unlock_irqrestore(&pool->lock, irq_flags);
+@@ -935,7 +935,7 @@ void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
+ 	struct dma_page *d_page, *next;
+ 	enum pool_type type;
+ 	bool is_cached = false;
+-	unsigned count = 0, i, npages = 0;
++	unsigned long count = 0, i, npages = 0;
+ 	unsigned long irq_flags;
+ 
+ 	type = ttm_to_type(ttm->page_flags, ttm->caching_state);
+@@ -1010,7 +1010,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
+ 	static unsigned start_pool;
+ 	unsigned idx = 0;
+ 	unsigned pool_offset;
+-	unsigned shrink_pages = sc->nr_to_scan;
++	unsigned long shrink_pages = sc->nr_to_scan;
+ 	struct device_pools *p;
+ 	unsigned long freed = 0;
+ 
+@@ -1023,7 +1023,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
+ 		goto out;
+ 	pool_offset = ++start_pool % _manager->npools;
+ 	list_for_each_entry(p, &_manager->pools, pools) {
+-		unsigned nr_free;
++		unsigned long nr_free;
+ 
+ 		if (!p->dev)
+ 			continue;
+@@ -1037,7 +1037,7 @@ ttm_dma_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
+ 		shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free, true);
+ 		freed += nr_free - shrink_pages;
+ 
+-		pr_debug("%s: (%s:%d) Asked to shrink %d, have %d more to go\n",
++		pr_debug("%s: (%s:%d) Asked to shrink %lu, have %lu more to go\n",
+ 			 p->pool->dev_name, p->pool->name, current->pid,
+ 			 nr_free, shrink_pages);
+ 	}
+diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
+index dbadd49..1b7457b 100644
+--- a/drivers/gpu/drm/udl/udl_fb.c
++++ b/drivers/gpu/drm/udl/udl_fb.c
+@@ -367,7 +367,6 @@ static int udl_fb_release(struct fb_info *info, int user)
+ 		fb_deferred_io_cleanup(info);
+ 		kfree(info->fbdefio);
+ 		info->fbdefio = NULL;
+-		info->fbops->fb_mmap = udl_fb_mmap;
+ 	}
+ 
+ 	pr_warn("released /dev/fb%d user=%d count=%d\n",
+diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
+index ad02732..144f5ed 100644
+--- a/drivers/gpu/drm/via/via_drv.h
++++ b/drivers/gpu/drm/via/via_drv.h
+@@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer {
+ typedef uint32_t maskarray_t[5];
+ 
+ typedef struct drm_via_irq {
+-	atomic_t irq_received;
++	atomic_unchecked_t irq_received;
+ 	uint32_t pending_mask;
+ 	uint32_t enable_mask;
+ 	wait_queue_head_t irq_queue;
+@@ -75,7 +75,7 @@ typedef struct drm_via_private {
+ 	struct timeval last_vblank;
+ 	int last_vblank_valid;
+ 	unsigned usec_per_vblank;
+-	atomic_t vbl_received;
++	atomic_unchecked_t vbl_received;
+ 	drm_via_state_t hc_state;
+ 	char pci_buf[VIA_PCI_BUF_SIZE];
+ 	const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
+diff --git a/drivers/gpu/drm/via/via_irq.c b/drivers/gpu/drm/via/via_irq.c
+index 1319433..a993b0c 100644
+--- a/drivers/gpu/drm/via/via_irq.c
++++ b/drivers/gpu/drm/via/via_irq.c
+@@ -101,7 +101,7 @@ u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
+ 	if (crtc != 0)
+ 		return 0;
+ 
+-	return atomic_read(&dev_priv->vbl_received);
++	return atomic_read_unchecked(&dev_priv->vbl_received);
+ }
+ 
+ irqreturn_t via_driver_irq_handler(int irq, void *arg)
+@@ -116,8 +116,8 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
+ 
+ 	status = VIA_READ(VIA_REG_INTERRUPT);
+ 	if (status & VIA_IRQ_VBLANK_PENDING) {
+-		atomic_inc(&dev_priv->vbl_received);
+-		if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
++		atomic_inc_unchecked(&dev_priv->vbl_received);
++		if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) {
+ 			do_gettimeofday(&cur_vblank);
+ 			if (dev_priv->last_vblank_valid) {
+ 				dev_priv->usec_per_vblank =
+@@ -127,7 +127,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
+ 			dev_priv->last_vblank = cur_vblank;
+ 			dev_priv->last_vblank_valid = 1;
+ 		}
+-		if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
++		if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) {
+ 			DRM_DEBUG("US per vblank is: %u\n",
+ 				  dev_priv->usec_per_vblank);
+ 		}
+@@ -137,7 +137,7 @@ irqreturn_t via_driver_irq_handler(int irq, void *arg)
+ 
+ 	for (i = 0; i < dev_priv->num_irqs; ++i) {
+ 		if (status & cur_irq->pending_mask) {
+-			atomic_inc(&cur_irq->irq_received);
++			atomic_inc_unchecked(&cur_irq->irq_received);
+ 			wake_up(&cur_irq->irq_queue);
+ 			handled = 1;
+ 			if (dev_priv->irq_map[drm_via_irq_dma0_td] == i)
+@@ -242,11 +242,11 @@ via_driver_irq_wait(struct drm_device *dev, unsigned int irq, int force_sequence
+ 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
+ 			    ((VIA_READ(masks[irq][2]) & masks[irq][3]) ==
+ 			     masks[irq][4]));
+-		cur_irq_sequence = atomic_read(&cur_irq->irq_received);
++		cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received);
+ 	} else {
+ 		DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * HZ,
+ 			    (((cur_irq_sequence =
+-			       atomic_read(&cur_irq->irq_received)) -
++			       atomic_read_unchecked(&cur_irq->irq_received)) -
+ 			      *sequence) <= (1 << 23)));
+ 	}
+ 	*sequence = cur_irq_sequence;
+@@ -284,7 +284,7 @@ void via_driver_irq_preinstall(struct drm_device *dev)
+ 		}
+ 
+ 		for (i = 0; i < dev_priv->num_irqs; ++i) {
+-			atomic_set(&cur_irq->irq_received, 0);
++			atomic_set_unchecked(&cur_irq->irq_received, 0);
+ 			cur_irq->enable_mask = dev_priv->irq_masks[i][0];
+ 			cur_irq->pending_mask = dev_priv->irq_masks[i][1];
+ 			init_waitqueue_head(&cur_irq->irq_queue);
+@@ -366,7 +366,7 @@ int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv)
+ 	switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) {
+ 	case VIA_IRQ_RELATIVE:
+ 		irqwait->request.sequence +=
+-			atomic_read(&cur_irq->irq_received);
++			atomic_read_unchecked(&cur_irq->irq_received);
+ 		irqwait->request.type &= ~_DRM_VBLANK_RELATIVE;
+ 	case VIA_IRQ_ABSOLUTE:
+ 		break;
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+index 0783155..b29e18e 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+@@ -437,7 +437,7 @@ struct vmw_private {
+ 	 * Fencing and IRQs.
+ 	 */
+ 
+-	atomic_t marker_seq;
++	atomic_unchecked_t marker_seq;
+ 	wait_queue_head_t fence_queue;
+ 	wait_queue_head_t fifo_queue;
+ 	int fence_queue_waiters; /* Protected by hw_mutex */
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+index 6eae14d..aa311b3 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+@@ -154,7 +154,7 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
+ 		 (unsigned int) min,
+ 		 (unsigned int) fifo->capabilities);
+ 
+-	atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
++	atomic_set_unchecked(&dev_priv->marker_seq, dev_priv->last_read_seqno);
+ 	iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
+ 	vmw_marker_queue_init(&fifo->marker_queue);
+ 	return vmw_fifo_send_fence(dev_priv, &dummy);
+@@ -373,7 +373,7 @@ void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
+ 				if (reserveable)
+ 					iowrite32(bytes, fifo_mem +
+ 						  SVGA_FIFO_RESERVED);
+-				return fifo_mem + (next_cmd >> 2);
++				return (__le32 __force_kernel *)fifo_mem + (next_cmd >> 2);
+ 			} else {
+ 				need_bounce = true;
+ 			}
+@@ -493,7 +493,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
+ 
+ 	fm = vmw_fifo_reserve(dev_priv, bytes);
+ 	if (unlikely(fm == NULL)) {
+-		*seqno = atomic_read(&dev_priv->marker_seq);
++		*seqno = atomic_read_unchecked(&dev_priv->marker_seq);
+ 		ret = -ENOMEM;
+ 		(void)vmw_fallback_wait(dev_priv, false, true, *seqno,
+ 					false, 3*HZ);
+@@ -501,7 +501,7 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
+ 	}
+ 
+ 	do {
+-		*seqno = atomic_add_return(1, &dev_priv->marker_seq);
++		*seqno = atomic_add_return_unchecked(1, &dev_priv->marker_seq);
+ 	} while (*seqno == 0);
+ 
+ 	if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+index b1273e8..9c274fd 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+@@ -164,9 +164,9 @@ static void vmw_gmrid_man_debug(struct ttm_mem_type_manager *man,
+ }
+ 
+ const struct ttm_mem_type_manager_func vmw_gmrid_manager_func = {
+-	vmw_gmrid_man_init,
+-	vmw_gmrid_man_takedown,
+-	vmw_gmrid_man_get_node,
+-	vmw_gmrid_man_put_node,
+-	vmw_gmrid_man_debug
++	.init = vmw_gmrid_man_init,
++	.takedown = vmw_gmrid_man_takedown,
++	.get_node = vmw_gmrid_man_get_node,
++	.put_node = vmw_gmrid_man_put_node,
++	.debug = vmw_gmrid_man_debug
+ };
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+index 47b7094..698ba09 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+@@ -236,7 +236,7 @@ int vmw_present_ioctl(struct drm_device *dev, void *data,
+ 	int ret;
+ 
+ 	num_clips = arg->num_clips;
+-	clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
++	clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
+ 
+ 	if (unlikely(num_clips == 0))
+ 		return 0;
+@@ -320,7 +320,7 @@ int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
+ 	int ret;
+ 
+ 	num_clips = arg->num_clips;
+-	clips_ptr = (struct drm_vmw_rect *)(unsigned long)arg->clips_ptr;
++	clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
+ 
+ 	if (unlikely(num_clips == 0))
+ 		return 0;
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
+index 0c42376..6febe77 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
+@@ -107,7 +107,7 @@ bool vmw_seqno_passed(struct vmw_private *dev_priv,
+ 	 * emitted. Then the fence is stale and signaled.
+ 	 */
+ 
+-	ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
++	ret = ((atomic_read_unchecked(&dev_priv->marker_seq) - seqno)
+ 	       > VMW_FENCE_WRAP);
+ 
+ 	return ret;
+@@ -138,7 +138,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
+ 
+ 	if (fifo_idle)
+ 		down_read(&fifo_state->rwsem);
+-	signal_seq = atomic_read(&dev_priv->marker_seq);
++	signal_seq = atomic_read_unchecked(&dev_priv->marker_seq);
+ 	ret = 0;
+ 
+ 	for (;;) {
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
+index 8a8725c2..afed796 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
+@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev_priv,
+ 	while (!vmw_lag_lt(queue, us)) {
+ 		spin_lock(&queue->lock);
+ 		if (list_empty(&queue->head))
+-			seqno = atomic_read(&dev_priv->marker_seq);
++			seqno = atomic_read_unchecked(&dev_priv->marker_seq);
+ 		else {
+ 			marker = list_first_entry(&queue->head,
+ 						 struct vmw_marker, head);
+diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
+index 37ac7b5..d52a5c9 100644
+--- a/drivers/gpu/vga/vga_switcheroo.c
++++ b/drivers/gpu/vga/vga_switcheroo.c
+@@ -644,7 +644,7 @@ static int vga_switcheroo_runtime_resume(struct device *dev)
+ 
+ /* this version is for the case where the power switch is separate
+    to the device being powered down. */
+-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain)
++int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain)
+ {
+ 	/* copy over all the bus versions */
+ 	if (dev->bus && dev->bus->pm) {
+@@ -695,7 +695,7 @@ static int vga_switcheroo_runtime_resume_hdmi_audio(struct device *dev)
+ 	return ret;
+ }
+ 
+-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain)
++int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain)
+ {
+ 	/* copy over all the bus versions */
+ 	if (dev->bus && dev->bus->pm) {
+diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
+index d92c7d9..ba3e5c0 100644
+--- a/drivers/hid/hid-core.c
++++ b/drivers/hid/hid-core.c
+@@ -2433,7 +2433,7 @@ EXPORT_SYMBOL_GPL(hid_ignore);
+ 
+ int hid_add_device(struct hid_device *hdev)
+ {
+-	static atomic_t id = ATOMIC_INIT(0);
++	static atomic_unchecked_t id = ATOMIC_INIT(0);
+ 	int ret;
+ 
+ 	if (WARN_ON(hdev->status & HID_STAT_ADDED))
+@@ -2467,7 +2467,7 @@ int hid_add_device(struct hid_device *hdev)
+ 	/* XXX hack, any other cleaner solution after the driver core
+ 	 * is converted to allow more than 20 bytes as the device name? */
+ 	dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
+-		     hdev->vendor, hdev->product, atomic_inc_return(&id));
++		     hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id));
+ 
+ 	hid_debug_register(hdev, dev_name(&hdev->dev));
+ 	ret = device_add(&hdev->dev);
+diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
+index c13fb5b..55a3802 100644
+--- a/drivers/hid/hid-wiimote-debug.c
++++ b/drivers/hid/hid-wiimote-debug.c
+@@ -66,7 +66,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
+ 	else if (size == 0)
+ 		return -EIO;
+ 
+-	if (copy_to_user(u, buf, size))
++	if (size > sizeof(buf) || copy_to_user(u, buf, size))
+ 		return -EFAULT;
+ 
+ 	*off += size;
+diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
+index cedc6da..2c3da2a 100644
+--- a/drivers/hid/uhid.c
++++ b/drivers/hid/uhid.c
+@@ -47,7 +47,7 @@ struct uhid_device {
+ 	struct mutex report_lock;
+ 	wait_queue_head_t report_wait;
+ 	atomic_t report_done;
+-	atomic_t report_id;
++	atomic_unchecked_t report_id;
+ 	struct uhid_event report_buf;
+ };
+ 
+@@ -163,7 +163,7 @@ static int uhid_hid_get_raw(struct hid_device *hid, unsigned char rnum,
+ 
+ 	spin_lock_irqsave(&uhid->qlock, flags);
+ 	ev->type = UHID_FEATURE;
+-	ev->u.feature.id = atomic_inc_return(&uhid->report_id);
++	ev->u.feature.id = atomic_inc_return_unchecked(&uhid->report_id);
+ 	ev->u.feature.rnum = rnum;
+ 	ev->u.feature.rtype = report_type;
+ 
+@@ -446,7 +446,7 @@ static int uhid_dev_feature_answer(struct uhid_device *uhid,
+ 	spin_lock_irqsave(&uhid->qlock, flags);
+ 
+ 	/* id for old report; drop it silently */
+-	if (atomic_read(&uhid->report_id) != ev->u.feature_answer.id)
++	if (atomic_read_unchecked(&uhid->report_id) != ev->u.feature_answer.id)
+ 		goto unlock;
+ 	if (atomic_read(&uhid->report_done))
+ 		goto unlock;
+diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
+index 356f22f..7dfce95 100644
+--- a/drivers/hv/channel.c
++++ b/drivers/hv/channel.c
+@@ -368,8 +368,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
+ 	unsigned long flags;
+ 	int ret = 0;
+ 
+-	next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle);
+-	atomic_inc(&vmbus_connection.next_gpadl_handle);
++	next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle);
++	atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle);
+ 
+ 	ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount);
+ 	if (ret)
+diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
+index bcb4950..61dba6c 100644
+--- a/drivers/hv/hv.c
++++ b/drivers/hv/hv.c
+@@ -112,7 +112,7 @@ static u64 do_hypercall(u64 control, void *input, void *output)
+ 	u64 output_address = (output) ? virt_to_phys(output) : 0;
+ 	u32 output_address_hi = output_address >> 32;
+ 	u32 output_address_lo = output_address & 0xFFFFFFFF;
+-	void *hypercall_page = hv_context.hypercall_page;
++	void *hypercall_page = ktva_ktla(hv_context.hypercall_page);
+ 
+ 	__asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi),
+ 			      "=a"(hv_status_lo) : "d" (control_hi),
+@@ -154,7 +154,7 @@ int hv_init(void)
+ 	/* See if the hypercall page is already set */
+ 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+ 
+-	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
++	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
+ 
+ 	if (!virtaddr)
+ 		goto cleanup;
+diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
+index 393fd8a..079e13f 100644
+--- a/drivers/hv/hv_balloon.c
++++ b/drivers/hv/hv_balloon.c
+@@ -470,7 +470,7 @@ MODULE_PARM_DESC(hot_add, "If set attempt memory hot_add");
+ 
+ module_param(pressure_report_delay, uint, (S_IRUGO | S_IWUSR));
+ MODULE_PARM_DESC(pressure_report_delay, "Delay in secs in reporting pressure");
+-static atomic_t trans_id = ATOMIC_INIT(0);
++static atomic_unchecked_t trans_id = ATOMIC_INIT(0);
+ 
+ static int dm_ring_size = (5 * PAGE_SIZE);
+ 
+@@ -893,7 +893,7 @@ static void hot_add_req(struct work_struct *dummy)
+ 		pr_info("Memory hot add failed\n");
+ 
+ 	dm->state = DM_INITIALIZED;
+-	resp.hdr.trans_id = atomic_inc_return(&trans_id);
++	resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 	vmbus_sendpacket(dm->dev->channel, &resp,
+ 			sizeof(struct dm_hot_add_response),
+ 			(unsigned long)NULL,
+@@ -973,7 +973,7 @@ static void post_status(struct hv_dynmem_device *dm)
+ 	memset(&status, 0, sizeof(struct dm_status));
+ 	status.hdr.type = DM_STATUS_REPORT;
+ 	status.hdr.size = sizeof(struct dm_status);
+-	status.hdr.trans_id = atomic_inc_return(&trans_id);
++	status.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 
+ 	/*
+ 	 * The host expects the guest to report free memory.
+@@ -993,7 +993,7 @@ static void post_status(struct hv_dynmem_device *dm)
+ 	 * send the status. This can happen if we were interrupted
+ 	 * after we picked our transaction ID.
+ 	 */
+-	if (status.hdr.trans_id != atomic_read(&trans_id))
++	if (status.hdr.trans_id != atomic_read_unchecked(&trans_id))
+ 		return;
+ 
+ 	/*
+@@ -1129,7 +1129,7 @@ static void balloon_up(struct work_struct *dummy)
+ 		 */
+ 
+ 		do {
+-			bl_resp->hdr.trans_id = atomic_inc_return(&trans_id);
++			bl_resp->hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 			ret = vmbus_sendpacket(dm_device.dev->channel,
+ 						bl_resp,
+ 						bl_resp->hdr.size,
+@@ -1175,7 +1175,7 @@ static void balloon_down(struct hv_dynmem_device *dm,
+ 
+ 	memset(&resp, 0, sizeof(struct dm_unballoon_response));
+ 	resp.hdr.type = DM_UNBALLOON_RESPONSE;
+-	resp.hdr.trans_id = atomic_inc_return(&trans_id);
++	resp.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 	resp.hdr.size = sizeof(struct dm_unballoon_response);
+ 
+ 	vmbus_sendpacket(dm_device.dev->channel, &resp,
+@@ -1238,7 +1238,7 @@ static void version_resp(struct hv_dynmem_device *dm,
+ 	memset(&version_req, 0, sizeof(struct dm_version_request));
+ 	version_req.hdr.type = DM_VERSION_REQUEST;
+ 	version_req.hdr.size = sizeof(struct dm_version_request);
+-	version_req.hdr.trans_id = atomic_inc_return(&trans_id);
++	version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 	version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN7;
+ 	version_req.is_last_attempt = 1;
+ 
+@@ -1408,7 +1408,7 @@ static int balloon_probe(struct hv_device *dev,
+ 	memset(&version_req, 0, sizeof(struct dm_version_request));
+ 	version_req.hdr.type = DM_VERSION_REQUEST;
+ 	version_req.hdr.size = sizeof(struct dm_version_request);
+-	version_req.hdr.trans_id = atomic_inc_return(&trans_id);
++	version_req.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 	version_req.version.version = DYNMEM_PROTOCOL_VERSION_WIN8;
+ 	version_req.is_last_attempt = 0;
+ 
+@@ -1439,7 +1439,7 @@ static int balloon_probe(struct hv_device *dev,
+ 	memset(&cap_msg, 0, sizeof(struct dm_capabilities));
+ 	cap_msg.hdr.type = DM_CAPABILITIES_REPORT;
+ 	cap_msg.hdr.size = sizeof(struct dm_capabilities);
+-	cap_msg.hdr.trans_id = atomic_inc_return(&trans_id);
++	cap_msg.hdr.trans_id = atomic_inc_return_unchecked(&trans_id);
+ 
+ 	cap_msg.caps.cap_bits.balloon = 1;
+ 	cap_msg.caps.cap_bits.hot_add = 1;
+diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
+index e055176..c22ff1f 100644
+--- a/drivers/hv/hyperv_vmbus.h
++++ b/drivers/hv/hyperv_vmbus.h
+@@ -602,7 +602,7 @@ enum vmbus_connect_state {
+ struct vmbus_connection {
+ 	enum vmbus_connect_state conn_state;
+ 
+-	atomic_t next_gpadl_handle;
++	atomic_unchecked_t next_gpadl_handle;
+ 
+ 	/*
+ 	 * Represents channel interrupts. Each bit position represents a
+diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
+index 077bb1b..d433d74 100644
+--- a/drivers/hv/vmbus_drv.c
++++ b/drivers/hv/vmbus_drv.c
+@@ -844,10 +844,10 @@ int vmbus_device_register(struct hv_device *child_device_obj)
+ {
+ 	int ret = 0;
+ 
+-	static atomic_t device_num = ATOMIC_INIT(0);
++	static atomic_unchecked_t device_num = ATOMIC_INIT(0);
+ 
+ 	dev_set_name(&child_device_obj->device, "vmbus_0_%d",
+-		     atomic_inc_return(&device_num));
++		     atomic_inc_return_unchecked(&device_num));
+ 
+ 	child_device_obj->device.bus = &hv_bus;
+ 	child_device_obj->device.parent = &hv_acpi_dev->dev;
+diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
+index 579bdf9..0dac21d5 100644
+--- a/drivers/hwmon/acpi_power_meter.c
++++ b/drivers/hwmon/acpi_power_meter.c
+@@ -116,7 +116,7 @@ struct sensor_template {
+ 		       struct device_attribute *devattr,
+ 		       const char *buf, size_t count);
+ 	int index;
+-};
++} __do_const;
+ 
+ /* Averaging interval */
+ static int update_avg_interval(struct acpi_power_meter_resource *resource)
+@@ -631,7 +631,7 @@ static int register_attrs(struct acpi_power_meter_resource *resource,
+ 			  struct sensor_template *attrs)
+ {
+ 	struct device *dev = &resource->acpi_dev->dev;
+-	struct sensor_device_attribute *sensors =
++	sensor_device_attribute_no_const *sensors =
+ 		&resource->sensors[resource->num_sensors];
+ 	int res = 0;
+ 
+@@ -973,7 +973,7 @@ static int __init enable_cap_knobs(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id __initdata pm_dmi_table[] = {
++static const struct dmi_system_id __initconst pm_dmi_table[] = {
+ 	{
+ 		enable_cap_knobs, "IBM Active Energy Manager",
+ 		{
+diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
+index 3288f13..71cfb4e 100644
+--- a/drivers/hwmon/applesmc.c
++++ b/drivers/hwmon/applesmc.c
+@@ -1106,7 +1106,7 @@ static int applesmc_create_nodes(struct applesmc_node_group *groups, int num)
+ {
+ 	struct applesmc_node_group *grp;
+ 	struct applesmc_dev_attr *node;
+-	struct attribute *attr;
++	attribute_no_const *attr;
+ 	int ret, i;
+ 
+ 	for (grp = groups; grp->format; grp++) {
+diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
+index ae208f6..48b6c5b 100644
+--- a/drivers/hwmon/asus_atk0110.c
++++ b/drivers/hwmon/asus_atk0110.c
+@@ -147,10 +147,10 @@ MODULE_DEVICE_TABLE(acpi, atk_ids);
+ struct atk_sensor_data {
+ 	struct list_head list;
+ 	struct atk_data *data;
+-	struct device_attribute label_attr;
+-	struct device_attribute input_attr;
+-	struct device_attribute limit1_attr;
+-	struct device_attribute limit2_attr;
++	device_attribute_no_const label_attr;
++	device_attribute_no_const input_attr;
++	device_attribute_no_const limit1_attr;
++	device_attribute_no_const limit2_attr;
+ 	char label_attr_name[ATTR_NAME_SIZE];
+ 	char input_attr_name[ATTR_NAME_SIZE];
+ 	char limit1_attr_name[ATTR_NAME_SIZE];
+@@ -270,7 +270,7 @@ static ssize_t atk_name_show(struct device *dev,
+ static struct device_attribute atk_name_attr =
+ 		__ATTR(name, 0444, atk_name_show, NULL);
+ 
+-static void atk_init_attribute(struct device_attribute *attr, char *name,
++static void atk_init_attribute(device_attribute_no_const *attr, char *name,
+ 		sysfs_show_func show)
+ {
+ 	sysfs_attr_init(&attr->attr);
+diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
+index 1599310..cd9525c 100644
+--- a/drivers/hwmon/coretemp.c
++++ b/drivers/hwmon/coretemp.c
+@@ -823,7 +823,7 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block coretemp_cpu_notifier __refdata = {
++static struct notifier_block coretemp_cpu_notifier = {
+ 	.notifier_call = coretemp_cpu_callback,
+ };
+ 
+diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
+index 632f1dc..57e6a58 100644
+--- a/drivers/hwmon/ibmaem.c
++++ b/drivers/hwmon/ibmaem.c
+@@ -926,7 +926,7 @@ static int aem_register_sensors(struct aem_data *data,
+ 				struct aem_rw_sensor_template *rw)
+ {
+ 	struct device *dev = &data->pdev->dev;
+-	struct sensor_device_attribute *sensors = data->sensors;
++	sensor_device_attribute_no_const *sensors = data->sensors;
+ 	int err;
+ 
+ 	/* Set up read-only sensors */
+diff --git a/drivers/hwmon/iio_hwmon.c b/drivers/hwmon/iio_hwmon.c
+index 708081b..fe2d4ab 100644
+--- a/drivers/hwmon/iio_hwmon.c
++++ b/drivers/hwmon/iio_hwmon.c
+@@ -73,7 +73,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+ 	struct iio_hwmon_state *st;
+-	struct sensor_device_attribute *a;
++	sensor_device_attribute_no_const *a;
+ 	int ret, i;
+ 	int in_i = 1, temp_i = 1, curr_i = 1;
+ 	enum iio_chan_type type;
+diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
+index 20b69bf..122e05b 100644
+--- a/drivers/hwmon/nct6775.c
++++ b/drivers/hwmon/nct6775.c
+@@ -944,10 +944,10 @@ static struct attribute_group *
+ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
+ 			  int repeat)
+ {
+-	struct attribute_group *group;
++	attribute_group_no_const *group;
+ 	struct sensor_device_attr_u *su;
+-	struct sensor_device_attribute *a;
+-	struct sensor_device_attribute_2 *a2;
++	sensor_device_attribute_no_const *a;
++	sensor_device_attribute_2_no_const *a2;
+ 	struct attribute **attrs;
+ 	struct sensor_device_template **t;
+ 	int i, count;
+diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
+index 291d11f..3f0dbbd 100644
+--- a/drivers/hwmon/pmbus/pmbus_core.c
++++ b/drivers/hwmon/pmbus/pmbus_core.c
+@@ -783,7 +783,7 @@ static int pmbus_add_attribute(struct pmbus_data *data, struct attribute *attr)
+ 	return 0;
+ }
+ 
+-static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
++static void pmbus_dev_attr_init(device_attribute_no_const *dev_attr,
+ 				const char *name,
+ 				umode_t mode,
+ 				ssize_t (*show)(struct device *dev,
+@@ -800,7 +800,7 @@ static void pmbus_dev_attr_init(struct device_attribute *dev_attr,
+ 	dev_attr->store = store;
+ }
+ 
+-static void pmbus_attr_init(struct sensor_device_attribute *a,
++static void pmbus_attr_init(sensor_device_attribute_no_const *a,
+ 			    const char *name,
+ 			    umode_t mode,
+ 			    ssize_t (*show)(struct device *dev,
+@@ -822,7 +822,7 @@ static int pmbus_add_boolean(struct pmbus_data *data,
+ 			     u16 reg, u8 mask)
+ {
+ 	struct pmbus_boolean *boolean;
+-	struct sensor_device_attribute *a;
++	sensor_device_attribute_no_const *a;
+ 
+ 	boolean = devm_kzalloc(data->dev, sizeof(*boolean), GFP_KERNEL);
+ 	if (!boolean)
+@@ -847,7 +847,7 @@ static struct pmbus_sensor *pmbus_add_sensor(struct pmbus_data *data,
+ 					     bool update, bool readonly)
+ {
+ 	struct pmbus_sensor *sensor;
+-	struct device_attribute *a;
++	device_attribute_no_const *a;
+ 
+ 	sensor = devm_kzalloc(data->dev, sizeof(*sensor), GFP_KERNEL);
+ 	if (!sensor)
+@@ -878,7 +878,7 @@ static int pmbus_add_label(struct pmbus_data *data,
+ 			   const char *lstring, int index)
+ {
+ 	struct pmbus_label *label;
+-	struct device_attribute *a;
++	device_attribute_no_const *a;
+ 
+ 	label = devm_kzalloc(data->dev, sizeof(*label), GFP_KERNEL);
+ 	if (!label)
+diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
+index 97cd45a..ac54d8b 100644
+--- a/drivers/hwmon/sht15.c
++++ b/drivers/hwmon/sht15.c
+@@ -169,7 +169,7 @@ struct sht15_data {
+ 	int				supply_uv;
+ 	bool				supply_uv_valid;
+ 	struct work_struct		update_supply_work;
+-	atomic_t			interrupt_handled;
++	atomic_unchecked_t		interrupt_handled;
+ };
+ 
+ /**
+@@ -542,13 +542,13 @@ static int sht15_measurement(struct sht15_data *data,
+ 	ret = gpio_direction_input(data->pdata->gpio_data);
+ 	if (ret)
+ 		return ret;
+-	atomic_set(&data->interrupt_handled, 0);
++	atomic_set_unchecked(&data->interrupt_handled, 0);
+ 
+ 	enable_irq(gpio_to_irq(data->pdata->gpio_data));
+ 	if (gpio_get_value(data->pdata->gpio_data) == 0) {
+ 		disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+ 		/* Only relevant if the interrupt hasn't occurred. */
+-		if (!atomic_read(&data->interrupt_handled))
++		if (!atomic_read_unchecked(&data->interrupt_handled))
+ 			schedule_work(&data->read_work);
+ 	}
+ 	ret = wait_event_timeout(data->wait_queue,
+@@ -820,7 +820,7 @@ static irqreturn_t sht15_interrupt_fired(int irq, void *d)
+ 
+ 	/* First disable the interrupt */
+ 	disable_irq_nosync(irq);
+-	atomic_inc(&data->interrupt_handled);
++	atomic_inc_unchecked(&data->interrupt_handled);
+ 	/* Then schedule a reading work struct */
+ 	if (data->state != SHT15_READING_NOTHING)
+ 		schedule_work(&data->read_work);
+@@ -842,11 +842,11 @@ static void sht15_bh_read_data(struct work_struct *work_s)
+ 		 * If not, then start the interrupt again - care here as could
+ 		 * have gone low in meantime so verify it hasn't!
+ 		 */
+-		atomic_set(&data->interrupt_handled, 0);
++		atomic_set_unchecked(&data->interrupt_handled, 0);
+ 		enable_irq(gpio_to_irq(data->pdata->gpio_data));
+ 		/* If still not occurred or another handler was scheduled */
+ 		if (gpio_get_value(data->pdata->gpio_data)
+-		    || atomic_read(&data->interrupt_handled))
++		    || atomic_read_unchecked(&data->interrupt_handled))
+ 			return;
+ 	}
+ 
+diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c
+index 38944e9..ae9e5ed 100644
+--- a/drivers/hwmon/via-cputemp.c
++++ b/drivers/hwmon/via-cputemp.c
+@@ -296,7 +296,7 @@ static int via_cputemp_cpu_callback(struct notifier_block *nfb,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block via_cputemp_cpu_notifier __refdata = {
++static struct notifier_block via_cputemp_cpu_notifier = {
+ 	.notifier_call = via_cputemp_cpu_callback,
+ };
+ 
+diff --git a/drivers/i2c/busses/i2c-amd756-s4882.c b/drivers/i2c/busses/i2c-amd756-s4882.c
+index 41fc683..a39cfea 100644
+--- a/drivers/i2c/busses/i2c-amd756-s4882.c
++++ b/drivers/i2c/busses/i2c-amd756-s4882.c
+@@ -43,7 +43,7 @@
+ extern struct i2c_adapter amd756_smbus;
+ 
+ static struct i2c_adapter *s4882_adapter;
+-static struct i2c_algorithm *s4882_algo;
++static i2c_algorithm_no_const *s4882_algo;
+ 
+ /* Wrapper access functions for multiplexed SMBus */
+ static DEFINE_MUTEX(amd756_lock);
+diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c
+index 721f7eb..0fd2a09 100644
+--- a/drivers/i2c/busses/i2c-diolan-u2c.c
++++ b/drivers/i2c/busses/i2c-diolan-u2c.c
+@@ -98,7 +98,7 @@ MODULE_PARM_DESC(frequency, "I2C clock frequency in hertz");
+ /* usb layer */
+ 
+ /* Send command to device, and get response. */
+-static int diolan_usb_transfer(struct i2c_diolan_u2c *dev)
++static int __intentional_overflow(-1) diolan_usb_transfer(struct i2c_diolan_u2c *dev)
+ {
+ 	int ret = 0;
+ 	int actual;
+diff --git a/drivers/i2c/busses/i2c-nforce2-s4985.c b/drivers/i2c/busses/i2c-nforce2-s4985.c
+index b170bdf..3c76427 100644
+--- a/drivers/i2c/busses/i2c-nforce2-s4985.c
++++ b/drivers/i2c/busses/i2c-nforce2-s4985.c
+@@ -41,7 +41,7 @@
+ extern struct i2c_adapter *nforce2_smbus;
+ 
+ static struct i2c_adapter *s4985_adapter;
+-static struct i2c_algorithm *s4985_algo;
++static i2c_algorithm_no_const *s4985_algo;
+ 
+ /* Wrapper access functions for multiplexed SMBus */
+ static DEFINE_MUTEX(nforce2_lock);
+diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
+index 80b47e8..1a6040d9 100644
+--- a/drivers/i2c/i2c-dev.c
++++ b/drivers/i2c/i2c-dev.c
+@@ -277,7 +277,7 @@ static noinline int i2cdev_ioctl_rdrw(struct i2c_client *client,
+ 			break;
+ 		}
+ 
+-		data_ptrs[i] = (u8 __user *)rdwr_pa[i].buf;
++		data_ptrs[i] = (u8 __force_user *)rdwr_pa[i].buf;
+ 		rdwr_pa[i].buf = memdup_user(data_ptrs[i], rdwr_pa[i].len);
+ 		if (IS_ERR(rdwr_pa[i].buf)) {
+ 			res = PTR_ERR(rdwr_pa[i].buf);
+diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
+index 0b510ba..4fbb5085 100644
+--- a/drivers/ide/ide-cd.c
++++ b/drivers/ide/ide-cd.c
+@@ -768,7 +768,7 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
+ 		alignment = queue_dma_alignment(q) | q->dma_pad_mask;
+ 		if ((unsigned long)buf & alignment
+ 		    || blk_rq_bytes(rq) & q->dma_pad_mask
+-		    || object_is_on_stack(buf))
++		    || object_starts_on_stack(buf))
+ 			drive->dma = 0;
+ 	}
+ }
+diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
+index acc911a..8700c3c 100644
+--- a/drivers/iio/industrialio-core.c
++++ b/drivers/iio/industrialio-core.c
+@@ -527,7 +527,7 @@ static ssize_t iio_write_channel_info(struct device *dev,
+ }
+ 
+ static
+-int __iio_device_attr_init(struct device_attribute *dev_attr,
++int __iio_device_attr_init(device_attribute_no_const *dev_attr,
+ 			   const char *postfix,
+ 			   struct iio_chan_spec const *chan,
+ 			   ssize_t (*readfunc)(struct device *dev,
+diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
+index c323917..6ddea8b 100644
+--- a/drivers/infiniband/core/cm.c
++++ b/drivers/infiniband/core/cm.c
+@@ -115,7 +115,7 @@ static char const counter_group_names[CM_COUNTER_GROUPS]
+ 
+ struct cm_counter_group {
+ 	struct kobject obj;
+-	atomic_long_t counter[CM_ATTR_COUNT];
++	atomic_long_unchecked_t counter[CM_ATTR_COUNT];
+ };
+ 
+ struct cm_counter_attribute {
+@@ -1398,7 +1398,7 @@ static void cm_dup_req_handler(struct cm_work *work,
+ 	struct ib_mad_send_buf *msg = NULL;
+ 	int ret;
+ 
+-	atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++	atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 			counter[CM_REQ_COUNTER]);
+ 
+ 	/* Quick state check to discard duplicate REQs. */
+@@ -1785,7 +1785,7 @@ static void cm_dup_rep_handler(struct cm_work *work)
+ 	if (!cm_id_priv)
+ 		return;
+ 
+-	atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++	atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 			counter[CM_REP_COUNTER]);
+ 	ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
+ 	if (ret)
+@@ -1952,7 +1952,7 @@ static int cm_rtu_handler(struct cm_work *work)
+ 	if (cm_id_priv->id.state != IB_CM_REP_SENT &&
+ 	    cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
+ 		spin_unlock_irq(&cm_id_priv->lock);
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_RTU_COUNTER]);
+ 		goto out;
+ 	}
+@@ -2135,7 +2135,7 @@ static int cm_dreq_handler(struct cm_work *work)
+ 	cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
+ 				   dreq_msg->local_comm_id);
+ 	if (!cm_id_priv) {
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_DREQ_COUNTER]);
+ 		cm_issue_drep(work->port, work->mad_recv_wc);
+ 		return -EINVAL;
+@@ -2160,7 +2160,7 @@ static int cm_dreq_handler(struct cm_work *work)
+ 	case IB_CM_MRA_REP_RCVD:
+ 		break;
+ 	case IB_CM_TIMEWAIT:
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_DREQ_COUNTER]);
+ 		if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
+ 			goto unlock;
+@@ -2174,7 +2174,7 @@ static int cm_dreq_handler(struct cm_work *work)
+ 			cm_free_msg(msg);
+ 		goto deref;
+ 	case IB_CM_DREQ_RCVD:
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_DREQ_COUNTER]);
+ 		goto unlock;
+ 	default:
+@@ -2541,7 +2541,7 @@ static int cm_mra_handler(struct cm_work *work)
+ 		    ib_modify_mad(cm_id_priv->av.port->mad_agent,
+ 				  cm_id_priv->msg, timeout)) {
+ 			if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
+-				atomic_long_inc(&work->port->
++				atomic_long_inc_unchecked(&work->port->
+ 						counter_group[CM_RECV_DUPLICATES].
+ 						counter[CM_MRA_COUNTER]);
+ 			goto out;
+@@ -2550,7 +2550,7 @@ static int cm_mra_handler(struct cm_work *work)
+ 		break;
+ 	case IB_CM_MRA_REQ_RCVD:
+ 	case IB_CM_MRA_REP_RCVD:
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_MRA_COUNTER]);
+ 		/* fall through */
+ 	default:
+@@ -2712,7 +2712,7 @@ static int cm_lap_handler(struct cm_work *work)
+ 	case IB_CM_LAP_IDLE:
+ 		break;
+ 	case IB_CM_MRA_LAP_SENT:
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_LAP_COUNTER]);
+ 		if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
+ 			goto unlock;
+@@ -2728,7 +2728,7 @@ static int cm_lap_handler(struct cm_work *work)
+ 			cm_free_msg(msg);
+ 		goto deref;
+ 	case IB_CM_LAP_RCVD:
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_LAP_COUNTER]);
+ 		goto unlock;
+ 	default:
+@@ -3012,7 +3012,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
+ 	cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
+ 	if (cur_cm_id_priv) {
+ 		spin_unlock_irq(&cm.lock);
+-		atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
++		atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES].
+ 				counter[CM_SIDR_REQ_COUNTER]);
+ 		goto out; /* Duplicate message. */
+ 	}
+@@ -3224,10 +3224,10 @@ static void cm_send_handler(struct ib_mad_agent *mad_agent,
+ 	if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
+ 		msg->retries = 1;
+ 
+-	atomic_long_add(1 + msg->retries,
++	atomic_long_add_unchecked(1 + msg->retries,
+ 			&port->counter_group[CM_XMIT].counter[attr_index]);
+ 	if (msg->retries)
+-		atomic_long_add(msg->retries,
++		atomic_long_add_unchecked(msg->retries,
+ 				&port->counter_group[CM_XMIT_RETRIES].
+ 				counter[attr_index]);
+ 
+@@ -3437,7 +3437,7 @@ static void cm_recv_handler(struct ib_mad_agent *mad_agent,
+ 	}
+ 
+ 	attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
+-	atomic_long_inc(&port->counter_group[CM_RECV].
++	atomic_long_inc_unchecked(&port->counter_group[CM_RECV].
+ 			counter[attr_id - CM_ATTR_ID_OFFSET]);
+ 
+ 	work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
+@@ -3668,7 +3668,7 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
+ 	cm_attr = container_of(attr, struct cm_counter_attribute, attr);
+ 
+ 	return sprintf(buf, "%ld\n",
+-		       atomic_long_read(&group->counter[cm_attr->index]));
++		       atomic_long_read_unchecked(&group->counter[cm_attr->index]));
+ }
+ 
+ static const struct sysfs_ops cm_counter_ops = {
+diff --git a/drivers/infiniband/core/fmr_pool.c b/drivers/infiniband/core/fmr_pool.c
+index 9f5ad7c..588cd84 100644
+--- a/drivers/infiniband/core/fmr_pool.c
++++ b/drivers/infiniband/core/fmr_pool.c
+@@ -98,8 +98,8 @@ struct ib_fmr_pool {
+ 
+ 	struct task_struct       *thread;
+ 
+-	atomic_t                  req_ser;
+-	atomic_t                  flush_ser;
++	atomic_unchecked_t        req_ser;
++	atomic_unchecked_t        flush_ser;
+ 
+ 	wait_queue_head_t         force_wait;
+ };
+@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
+ 	struct ib_fmr_pool *pool = pool_ptr;
+ 
+ 	do {
+-		if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) {
++		if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) {
+ 			ib_fmr_batch_release(pool);
+ 
+-			atomic_inc(&pool->flush_ser);
++			atomic_inc_unchecked(&pool->flush_ser);
+ 			wake_up_interruptible(&pool->force_wait);
+ 
+ 			if (pool->flush_function)
+@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *pool_ptr)
+ 		}
+ 
+ 		set_current_state(TASK_INTERRUPTIBLE);
+-		if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 &&
++		if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 &&
+ 		    !kthread_should_stop())
+ 			schedule();
+ 		__set_current_state(TASK_RUNNING);
+@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd             *pd,
+ 	pool->dirty_watermark = params->dirty_watermark;
+ 	pool->dirty_len       = 0;
+ 	spin_lock_init(&pool->pool_lock);
+-	atomic_set(&pool->req_ser,   0);
+-	atomic_set(&pool->flush_ser, 0);
++	atomic_set_unchecked(&pool->req_ser,   0);
++	atomic_set_unchecked(&pool->flush_ser, 0);
+ 	init_waitqueue_head(&pool->force_wait);
+ 
+ 	pool->thread = kthread_run(ib_fmr_cleanup_thread,
+@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
+ 	}
+ 	spin_unlock_irq(&pool->pool_lock);
+ 
+-	serial = atomic_inc_return(&pool->req_ser);
++	serial = atomic_inc_return_unchecked(&pool->req_ser);
+ 	wake_up_process(pool->thread);
+ 
+ 	if (wait_event_interruptible(pool->force_wait,
+-				     atomic_read(&pool->flush_ser) - serial >= 0))
++				     atomic_read_unchecked(&pool->flush_ser) - serial >= 0))
+ 		return -EINTR;
+ 
+ 	return 0;
+@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
+ 		} else {
+ 			list_add_tail(&fmr->list, &pool->dirty_list);
+ 			if (++pool->dirty_len >= pool->dirty_watermark) {
+-				atomic_inc(&pool->req_ser);
++				atomic_inc_unchecked(&pool->req_ser);
+ 				wake_up_process(pool->thread);
+ 			}
+ 		}
+diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
+index 2adc143..619e970 100644
+--- a/drivers/infiniband/core/uverbs_cmd.c
++++ b/drivers/infiniband/core/uverbs_cmd.c
+@@ -923,6 +923,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
+ 	if (copy_from_user(&cmd, buf, sizeof cmd))
+ 		return -EFAULT;
+ 
++	if (!access_ok_noprefault(VERIFY_READ, cmd.start, cmd.length))
++		return -EFAULT;
++
+ 	INIT_UDATA(&udata, buf + sizeof cmd,
+ 		   (unsigned long) cmd.response + sizeof resp,
+ 		   in_len - sizeof cmd, out_len - sizeof resp);
+diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
+index 41b1195..27971a0 100644
+--- a/drivers/infiniband/hw/cxgb4/mem.c
++++ b/drivers/infiniband/hw/cxgb4/mem.c
+@@ -249,7 +249,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
+ 	int err;
+ 	struct fw_ri_tpte tpt;
+ 	u32 stag_idx;
+-	static atomic_t key;
++	static atomic_unchecked_t key;
+ 
+ 	if (c4iw_fatal_error(rdev))
+ 		return -EIO;
+@@ -266,7 +266,7 @@ static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
+ 		if (rdev->stats.stag.cur > rdev->stats.stag.max)
+ 			rdev->stats.stag.max = rdev->stats.stag.cur;
+ 		mutex_unlock(&rdev->stats.lock);
+-		*stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff);
++		*stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff);
+ 	}
+ 	PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n",
+ 	     __func__, stag_state, type, pdid, stag_idx);
+diff --git a/drivers/infiniband/hw/ipath/ipath_dma.c b/drivers/infiniband/hw/ipath/ipath_dma.c
+index 644c2c7..ecf0879 100644
+--- a/drivers/infiniband/hw/ipath/ipath_dma.c
++++ b/drivers/infiniband/hw/ipath/ipath_dma.c
+@@ -176,17 +176,17 @@ static void ipath_dma_free_coherent(struct ib_device *dev, size_t size,
+ }
+ 
+ struct ib_dma_mapping_ops ipath_dma_mapping_ops = {
+-	ipath_mapping_error,
+-	ipath_dma_map_single,
+-	ipath_dma_unmap_single,
+-	ipath_dma_map_page,
+-	ipath_dma_unmap_page,
+-	ipath_map_sg,
+-	ipath_unmap_sg,
+-	ipath_sg_dma_address,
+-	ipath_sg_dma_len,
+-	ipath_sync_single_for_cpu,
+-	ipath_sync_single_for_device,
+-	ipath_dma_alloc_coherent,
+-	ipath_dma_free_coherent
++	.mapping_error = ipath_mapping_error,
++	.map_single = ipath_dma_map_single,
++	.unmap_single = ipath_dma_unmap_single,
++	.map_page = ipath_dma_map_page,
++	.unmap_page = ipath_dma_unmap_page,
++	.map_sg = ipath_map_sg,
++	.unmap_sg = ipath_unmap_sg,
++	.dma_address = ipath_sg_dma_address,
++	.dma_len = ipath_sg_dma_len,
++	.sync_single_for_cpu = ipath_sync_single_for_cpu,
++	.sync_single_for_device = ipath_sync_single_for_device,
++	.alloc_coherent = ipath_dma_alloc_coherent,
++	.free_coherent = ipath_dma_free_coherent
+ };
+diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
+index 79b3dbc..96e5fcc 100644
+--- a/drivers/infiniband/hw/ipath/ipath_rc.c
++++ b/drivers/infiniband/hw/ipath/ipath_rc.c
+@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
+ 		struct ib_atomic_eth *ateth;
+ 		struct ipath_ack_entry *e;
+ 		u64 vaddr;
+-		atomic64_t *maddr;
++		atomic64_unchecked_t *maddr;
+ 		u64 sdata;
+ 		u32 rkey;
+ 		u8 next;
+@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
+ 					    IB_ACCESS_REMOTE_ATOMIC)))
+ 			goto nack_acc_unlck;
+ 		/* Perform atomic OP and save result. */
+-		maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
++		maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
+ 		sdata = be64_to_cpu(ateth->swap_data);
+ 		e = &qp->s_ack_queue[qp->r_head_ack_queue];
+ 		e->atomic_data = (opcode == OP(FETCH_ADD)) ?
+-			(u64) atomic64_add_return(sdata, maddr) - sdata :
++			(u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
+ 			(u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
+ 				      be64_to_cpu(ateth->compare_data),
+ 				      sdata);
+diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c
+index 1f95bba..9530f87 100644
+--- a/drivers/infiniband/hw/ipath/ipath_ruc.c
++++ b/drivers/infiniband/hw/ipath/ipath_ruc.c
+@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ipath_qp *sqp)
+ 	unsigned long flags;
+ 	struct ib_wc wc;
+ 	u64 sdata;
+-	atomic64_t *maddr;
++	atomic64_unchecked_t *maddr;
+ 	enum ib_wc_status send_status;
+ 
+ 	/*
+@@ -382,11 +382,11 @@ again:
+ 					    IB_ACCESS_REMOTE_ATOMIC)))
+ 			goto acc_err;
+ 		/* Perform atomic OP and save result. */
+-		maddr = (atomic64_t *) qp->r_sge.sge.vaddr;
++		maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr;
+ 		sdata = wqe->wr.wr.atomic.compare_add;
+ 		*(u64 *) sqp->s_sge.sge.vaddr =
+ 			(wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ?
+-			(u64) atomic64_add_return(sdata, maddr) - sdata :
++			(u64) atomic64_add_return_unchecked(sdata, maddr) - sdata :
+ 			(u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr,
+ 				      sdata, wqe->wr.wr.atomic.swap);
+ 		goto send_comp;
+diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
+index 2592ab5..0d35c7e 100644
+--- a/drivers/infiniband/hw/mlx4/mad.c
++++ b/drivers/infiniband/hw/mlx4/mad.c
+@@ -106,7 +106,7 @@ __be64 mlx4_ib_gen_node_guid(void)
+ 
+ __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
+ {
+-	return cpu_to_be64(atomic_inc_return(&ctx->tid)) |
++	return cpu_to_be64(atomic_inc_return_unchecked(&ctx->tid)) |
+ 		cpu_to_be64(0xff00000000000000LL);
+ }
+ 
+diff --git a/drivers/infiniband/hw/mlx4/mcg.c b/drivers/infiniband/hw/mlx4/mcg.c
+index 25b2cdf..099ff97 100644
+--- a/drivers/infiniband/hw/mlx4/mcg.c
++++ b/drivers/infiniband/hw/mlx4/mcg.c
+@@ -1040,7 +1040,7 @@ int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx)
+ {
+ 	char name[20];
+ 
+-	atomic_set(&ctx->tid, 0);
++	atomic_set_unchecked(&ctx->tid, 0);
+ 	sprintf(name, "mlx4_ib_mcg%d", ctx->port);
+ 	ctx->mcg_wq = create_singlethread_workqueue(name);
+ 	if (!ctx->mcg_wq)
+diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
+index a230683..3723f2d 100644
+--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
++++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
+@@ -408,7 +408,7 @@ struct mlx4_ib_demux_ctx {
+ 	struct list_head	mcg_mgid0_list;
+ 	struct workqueue_struct	*mcg_wq;
+ 	struct mlx4_ib_demux_pv_ctx **tun;
+-	atomic_t tid;
++	atomic_unchecked_t tid;
+ 	int    flushing; /* flushing the work queue */
+ };
+ 
+diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
+index 9d3e5c1..6f166df 100644
+--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
++++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
+@@ -772,7 +772,7 @@ static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base)
+ 	mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n");
+ }
+ 
+-int mthca_QUERY_FW(struct mthca_dev *dev)
++int __intentional_overflow(-1) mthca_QUERY_FW(struct mthca_dev *dev)
+ {
+ 	struct mthca_mailbox *mailbox;
+ 	u32 *outbox;
+@@ -1612,7 +1612,7 @@ int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
+ 			     CMD_TIME_CLASS_B);
+ }
+ 
+-int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
++int __intentional_overflow(-1) mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
+ 		    int num_mtt)
+ {
+ 	return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT,
+@@ -1634,7 +1634,7 @@ int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
+ 			 0, CMD_MAP_EQ, CMD_TIME_CLASS_B);
+ }
+ 
+-int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
++int __intentional_overflow(-1) mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox,
+ 		   int eq_num)
+ {
+ 	return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ,
+@@ -1857,7 +1857,7 @@ int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn)
+ 			 CMD_TIME_CLASS_B);
+ }
+ 
+-int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
++int __intentional_overflow(-1) mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
+ 		  int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
+ 		  void *in_mad, void *response_mad)
+ {
+diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
+index 87897b9..7e79542 100644
+--- a/drivers/infiniband/hw/mthca/mthca_main.c
++++ b/drivers/infiniband/hw/mthca/mthca_main.c
+@@ -692,7 +692,7 @@ err_close:
+ 	return err;
+ }
+ 
+-static int mthca_setup_hca(struct mthca_dev *dev)
++static int __intentional_overflow(-1) mthca_setup_hca(struct mthca_dev *dev)
+ {
+ 	int err;
+ 
+diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c
+index ed9a989..6aa5dc2 100644
+--- a/drivers/infiniband/hw/mthca/mthca_mr.c
++++ b/drivers/infiniband/hw/mthca/mthca_mr.c
+@@ -81,7 +81,7 @@ struct mthca_mpt_entry {
+  * through the bitmaps)
+  */
+ 
+-static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
++static u32 __intentional_overflow(-1) mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
+ {
+ 	int o;
+ 	int m;
+@@ -426,7 +426,7 @@ static inline u32 adjust_key(struct mthca_dev *dev, u32 key)
+ 		return key;
+ }
+ 
+-int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
++int __intentional_overflow(-1) mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
+ 		   u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
+ {
+ 	struct mthca_mailbox *mailbox;
+@@ -516,7 +516,7 @@ int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
+ 	return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
+ }
+ 
+-int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
++int __intentional_overflow(-1) mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
+ 			u64 *buffer_list, int buffer_size_shift,
+ 			int list_len, u64 iova, u64 total_size,
+ 			u32 access, struct mthca_mr *mr)
+diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
+index 42dde06..1257310 100644
+--- a/drivers/infiniband/hw/mthca/mthca_provider.c
++++ b/drivers/infiniband/hw/mthca/mthca_provider.c
+@@ -764,7 +764,7 @@ unlock:
+ 	return 0;
+ }
+ 
+-static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
++static int __intentional_overflow(-1) mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
+ {
+ 	struct mthca_dev *dev = to_mdev(ibcq->device);
+ 	struct mthca_cq *cq = to_mcq(ibcq);
+diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
+index 353c7b0..c6ce921 100644
+--- a/drivers/infiniband/hw/nes/nes.c
++++ b/drivers/infiniband/hw/nes/nes.c
+@@ -98,7 +98,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limit max read request size to 256 Bytes");
+ LIST_HEAD(nes_adapter_list);
+ static LIST_HEAD(nes_dev_list);
+ 
+-atomic_t qps_destroyed;
++atomic_unchecked_t qps_destroyed;
+ 
+ static unsigned int ee_flsh_adapter;
+ static unsigned int sysfs_nonidx_addr;
+@@ -269,7 +269,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r
+ 	struct nes_qp *nesqp = cqp_request->cqp_callback_pointer;
+ 	struct nes_adapter *nesadapter = nesdev->nesadapter;
+ 
+-	atomic_inc(&qps_destroyed);
++	atomic_inc_unchecked(&qps_destroyed);
+ 
+ 	/* Free the control structures */
+ 
+diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
+index 33cc589..3bd6538 100644
+--- a/drivers/infiniband/hw/nes/nes.h
++++ b/drivers/infiniband/hw/nes/nes.h
+@@ -177,17 +177,17 @@ extern unsigned int nes_debug_level;
+ extern unsigned int wqm_quanta;
+ extern struct list_head nes_adapter_list;
+ 
+-extern atomic_t cm_connects;
+-extern atomic_t cm_accepts;
+-extern atomic_t cm_disconnects;
+-extern atomic_t cm_closes;
+-extern atomic_t cm_connecteds;
+-extern atomic_t cm_connect_reqs;
+-extern atomic_t cm_rejects;
+-extern atomic_t mod_qp_timouts;
+-extern atomic_t qps_created;
+-extern atomic_t qps_destroyed;
+-extern atomic_t sw_qps_destroyed;
++extern atomic_unchecked_t cm_connects;
++extern atomic_unchecked_t cm_accepts;
++extern atomic_unchecked_t cm_disconnects;
++extern atomic_unchecked_t cm_closes;
++extern atomic_unchecked_t cm_connecteds;
++extern atomic_unchecked_t cm_connect_reqs;
++extern atomic_unchecked_t cm_rejects;
++extern atomic_unchecked_t mod_qp_timouts;
++extern atomic_unchecked_t qps_created;
++extern atomic_unchecked_t qps_destroyed;
++extern atomic_unchecked_t sw_qps_destroyed;
+ extern u32 mh_detected;
+ extern u32 mh_pauses_sent;
+ extern u32 cm_packets_sent;
+@@ -196,16 +196,16 @@ extern u32 cm_packets_created;
+ extern u32 cm_packets_received;
+ extern u32 cm_packets_dropped;
+ extern u32 cm_packets_retrans;
+-extern atomic_t cm_listens_created;
+-extern atomic_t cm_listens_destroyed;
++extern atomic_unchecked_t cm_listens_created;
++extern atomic_unchecked_t cm_listens_destroyed;
+ extern u32 cm_backlog_drops;
+-extern atomic_t cm_loopbacks;
+-extern atomic_t cm_nodes_created;
+-extern atomic_t cm_nodes_destroyed;
+-extern atomic_t cm_accel_dropped_pkts;
+-extern atomic_t cm_resets_recvd;
+-extern atomic_t pau_qps_created;
+-extern atomic_t pau_qps_destroyed;
++extern atomic_unchecked_t cm_loopbacks;
++extern atomic_unchecked_t cm_nodes_created;
++extern atomic_unchecked_t cm_nodes_destroyed;
++extern atomic_unchecked_t cm_accel_dropped_pkts;
++extern atomic_unchecked_t cm_resets_recvd;
++extern atomic_unchecked_t pau_qps_created;
++extern atomic_unchecked_t pau_qps_destroyed;
+ 
+ extern u32 int_mod_timer_init;
+ extern u32 int_mod_cq_depth_256;
+diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
+index 9c9f2f5..2559190 100644
+--- a/drivers/infiniband/hw/nes/nes_cm.c
++++ b/drivers/infiniband/hw/nes/nes_cm.c
+@@ -68,14 +68,14 @@ u32 cm_packets_dropped;
+ u32 cm_packets_retrans;
+ u32 cm_packets_created;
+ u32 cm_packets_received;
+-atomic_t cm_listens_created;
+-atomic_t cm_listens_destroyed;
++atomic_unchecked_t cm_listens_created;
++atomic_unchecked_t cm_listens_destroyed;
+ u32 cm_backlog_drops;
+-atomic_t cm_loopbacks;
+-atomic_t cm_nodes_created;
+-atomic_t cm_nodes_destroyed;
+-atomic_t cm_accel_dropped_pkts;
+-atomic_t cm_resets_recvd;
++atomic_unchecked_t cm_loopbacks;
++atomic_unchecked_t cm_nodes_created;
++atomic_unchecked_t cm_nodes_destroyed;
++atomic_unchecked_t cm_accel_dropped_pkts;
++atomic_unchecked_t cm_resets_recvd;
+ 
+ static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
+ static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, struct nes_vnic *, struct nes_cm_info *);
+@@ -133,28 +133,28 @@ static void print_core(struct nes_cm_core *core);
+ /* instance of function pointers for client API */
+ /* set address of this instance to cm_core->cm_ops at cm_core alloc */
+ static struct nes_cm_ops nes_cm_api = {
+-	mini_cm_accelerated,
+-	mini_cm_listen,
+-	mini_cm_del_listen,
+-	mini_cm_connect,
+-	mini_cm_close,
+-	mini_cm_accept,
+-	mini_cm_reject,
+-	mini_cm_recv_pkt,
+-	mini_cm_dealloc_core,
+-	mini_cm_get,
+-	mini_cm_set
++	.accelerated = mini_cm_accelerated,
++	.listen = mini_cm_listen,
++	.stop_listener = mini_cm_del_listen,
++	.connect = mini_cm_connect,
++	.close = mini_cm_close,
++	.accept = mini_cm_accept,
++	.reject = mini_cm_reject,
++	.recv_pkt = mini_cm_recv_pkt,
++	.destroy_cm_core = mini_cm_dealloc_core,
++	.get = mini_cm_get,
++	.set = mini_cm_set
+ };
+ 
+ static struct nes_cm_core *g_cm_core;
+ 
+-atomic_t cm_connects;
+-atomic_t cm_accepts;
+-atomic_t cm_disconnects;
+-atomic_t cm_closes;
+-atomic_t cm_connecteds;
+-atomic_t cm_connect_reqs;
+-atomic_t cm_rejects;
++atomic_unchecked_t cm_connects;
++atomic_unchecked_t cm_accepts;
++atomic_unchecked_t cm_disconnects;
++atomic_unchecked_t cm_closes;
++atomic_unchecked_t cm_connecteds;
++atomic_unchecked_t cm_connect_reqs;
++atomic_unchecked_t cm_rejects;
+ 
+ int nes_add_ref_cm_node(struct nes_cm_node *cm_node)
+ {
+@@ -1272,7 +1272,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
+ 		kfree(listener);
+ 		listener = NULL;
+ 		ret = 0;
+-		atomic_inc(&cm_listens_destroyed);
++		atomic_inc_unchecked(&cm_listens_destroyed);
+ 	} else {
+ 		spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+ 	}
+@@ -1465,7 +1465,7 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
+ 		  cm_node->rem_mac);
+ 
+ 	add_hte_node(cm_core, cm_node);
+-	atomic_inc(&cm_nodes_created);
++	atomic_inc_unchecked(&cm_nodes_created);
+ 
+ 	return cm_node;
+ }
+@@ -1523,7 +1523,7 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core,
+ 	}
+ 
+ 	atomic_dec(&cm_core->node_cnt);
+-	atomic_inc(&cm_nodes_destroyed);
++	atomic_inc_unchecked(&cm_nodes_destroyed);
+ 	nesqp = cm_node->nesqp;
+ 	if (nesqp) {
+ 		nesqp->cm_node = NULL;
+@@ -1587,7 +1587,7 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc,
+ 
+ static void drop_packet(struct sk_buff *skb)
+ {
+-	atomic_inc(&cm_accel_dropped_pkts);
++	atomic_inc_unchecked(&cm_accel_dropped_pkts);
+ 	dev_kfree_skb_any(skb);
+ }
+ 
+@@ -1650,7 +1650,7 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb,
+ {
+ 
+ 	int	reset = 0;	/* whether to send reset in case of err.. */
+-	atomic_inc(&cm_resets_recvd);
++	atomic_inc_unchecked(&cm_resets_recvd);
+ 	nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u."
+ 			" refcnt=%d\n", cm_node, cm_node->state,
+ 			atomic_read(&cm_node->ref_count));
+@@ -2291,7 +2291,7 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
+ 				rem_ref_cm_node(cm_node->cm_core, cm_node);
+ 				return NULL;
+ 			}
+-			atomic_inc(&cm_loopbacks);
++			atomic_inc_unchecked(&cm_loopbacks);
+ 			loopbackremotenode->loopbackpartner = cm_node;
+ 			loopbackremotenode->tcp_cntxt.rcv_wscale =
+ 				NES_CM_DEFAULT_RCV_WND_SCALE;
+@@ -2566,7 +2566,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core,
+ 				nes_queue_mgt_skbs(skb, nesvnic, cm_node->nesqp);
+ 			else {
+ 				rem_ref_cm_node(cm_core, cm_node);
+-				atomic_inc(&cm_accel_dropped_pkts);
++				atomic_inc_unchecked(&cm_accel_dropped_pkts);
+ 				dev_kfree_skb_any(skb);
+ 			}
+ 			break;
+@@ -2874,7 +2874,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
+ 
+ 	if ((cm_id) && (cm_id->event_handler)) {
+ 		if (issue_disconn) {
+-			atomic_inc(&cm_disconnects);
++			atomic_inc_unchecked(&cm_disconnects);
+ 			cm_event.event = IW_CM_EVENT_DISCONNECT;
+ 			cm_event.status = disconn_status;
+ 			cm_event.local_addr = cm_id->local_addr;
+@@ -2896,7 +2896,7 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp)
+ 		}
+ 
+ 		if (issue_close) {
+-			atomic_inc(&cm_closes);
++			atomic_inc_unchecked(&cm_closes);
+ 			nes_disconnect(nesqp, 1);
+ 
+ 			cm_id->provider_data = nesqp;
+@@ -3034,7 +3034,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+ 
+ 	nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n",
+ 		nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener);
+-	atomic_inc(&cm_accepts);
++	atomic_inc_unchecked(&cm_accepts);
+ 
+ 	nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
+ 			netdev_refcnt_read(nesvnic->netdev));
+@@ -3223,7 +3223,7 @@ int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
+ 	struct nes_cm_core *cm_core;
+ 	u8 *start_buff;
+ 
+-	atomic_inc(&cm_rejects);
++	atomic_inc_unchecked(&cm_rejects);
+ 	cm_node = (struct nes_cm_node *)cm_id->provider_data;
+ 	loopback = cm_node->loopbackpartner;
+ 	cm_core = cm_node->cm_core;
+@@ -3285,7 +3285,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+ 		  ntohs(raddr->sin_port), ntohl(laddr->sin_addr.s_addr),
+ 		  ntohs(laddr->sin_port));
+ 
+-	atomic_inc(&cm_connects);
++	atomic_inc_unchecked(&cm_connects);
+ 	nesqp->active_conn = 1;
+ 
+ 	/* cache the cm_id in the qp */
+@@ -3397,7 +3397,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
+ 			g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
+ 			return err;
+ 		}
+-		atomic_inc(&cm_listens_created);
++		atomic_inc_unchecked(&cm_listens_created);
+ 	}
+ 
+ 	cm_id->add_ref(cm_id);
+@@ -3504,7 +3504,7 @@ static void cm_event_connected(struct nes_cm_event *event)
+ 
+ 	if (nesqp->destroyed)
+ 		return;
+-	atomic_inc(&cm_connecteds);
++	atomic_inc_unchecked(&cm_connecteds);
+ 	nes_debug(NES_DBG_CM, "QP%u attempting to connect to  0x%08X:0x%04X on"
+ 		  " local port 0x%04X. jiffies = %lu.\n",
+ 		  nesqp->hwqp.qp_id, ntohl(raddr->sin_addr.s_addr),
+@@ -3685,7 +3685,7 @@ static void cm_event_reset(struct nes_cm_event *event)
+ 
+ 	cm_id->add_ref(cm_id);
+ 	ret = cm_id->event_handler(cm_id, &cm_event);
+-	atomic_inc(&cm_closes);
++	atomic_inc_unchecked(&cm_closes);
+ 	cm_event.event = IW_CM_EVENT_CLOSE;
+ 	cm_event.status = 0;
+ 	cm_event.provider_data = cm_id->provider_data;
+@@ -3725,7 +3725,7 @@ static void cm_event_mpa_req(struct nes_cm_event *event)
+ 		return;
+ 	cm_id = cm_node->cm_id;
+ 
+-	atomic_inc(&cm_connect_reqs);
++	atomic_inc_unchecked(&cm_connect_reqs);
+ 	nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
+ 		  cm_node, cm_id, jiffies);
+ 
+@@ -3769,7 +3769,7 @@ static void cm_event_mpa_reject(struct nes_cm_event *event)
+ 		return;
+ 	cm_id = cm_node->cm_id;
+ 
+-	atomic_inc(&cm_connect_reqs);
++	atomic_inc_unchecked(&cm_connect_reqs);
+ 	nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
+ 		  cm_node, cm_id, jiffies);
+ 
+diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
+index 4166452..fc952c3 100644
+--- a/drivers/infiniband/hw/nes/nes_mgt.c
++++ b/drivers/infiniband/hw/nes/nes_mgt.c
+@@ -40,8 +40,8 @@
+ #include "nes.h"
+ #include "nes_mgt.h"
+ 
+-atomic_t pau_qps_created;
+-atomic_t pau_qps_destroyed;
++atomic_unchecked_t pau_qps_created;
++atomic_unchecked_t pau_qps_destroyed;
+ 
+ static void nes_replenish_mgt_rq(struct nes_vnic_mgt *mgtvnic)
+ {
+@@ -621,7 +621,7 @@ void nes_destroy_pau_qp(struct nes_device *nesdev, struct nes_qp *nesqp)
+ {
+ 	struct sk_buff *skb;
+ 	unsigned long flags;
+-	atomic_inc(&pau_qps_destroyed);
++	atomic_inc_unchecked(&pau_qps_destroyed);
+ 
+ 	/* Free packets that have not yet been forwarded */
+ 	/* Lock is acquired by skb_dequeue when removing the skb */
+@@ -810,7 +810,7 @@ static void nes_mgt_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *
+ 					cq->cq_vbase[head].cqe_words[NES_NIC_CQE_HASH_RCVNXT]);
+ 				skb_queue_head_init(&nesqp->pau_list);
+ 				spin_lock_init(&nesqp->pau_lock);
+-				atomic_inc(&pau_qps_created);
++				atomic_inc_unchecked(&pau_qps_created);
+ 				nes_change_quad_hash(nesdev, mgtvnic->nesvnic, nesqp);
+ 			}
+ 
+diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
+index 49eb511..a774366 100644
+--- a/drivers/infiniband/hw/nes/nes_nic.c
++++ b/drivers/infiniband/hw/nes/nes_nic.c
+@@ -1273,39 +1273,39 @@ static void nes_netdev_get_ethtool_stats(struct net_device *netdev,
+ 	target_stat_values[++index] = mh_detected;
+ 	target_stat_values[++index] = mh_pauses_sent;
+ 	target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits;
+-	target_stat_values[++index] = atomic_read(&cm_connects);
+-	target_stat_values[++index] = atomic_read(&cm_accepts);
+-	target_stat_values[++index] = atomic_read(&cm_disconnects);
+-	target_stat_values[++index] = atomic_read(&cm_connecteds);
+-	target_stat_values[++index] = atomic_read(&cm_connect_reqs);
+-	target_stat_values[++index] = atomic_read(&cm_rejects);
+-	target_stat_values[++index] = atomic_read(&mod_qp_timouts);
+-	target_stat_values[++index] = atomic_read(&qps_created);
+-	target_stat_values[++index] = atomic_read(&sw_qps_destroyed);
+-	target_stat_values[++index] = atomic_read(&qps_destroyed);
+-	target_stat_values[++index] = atomic_read(&cm_closes);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_connects);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_accepts);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_rejects);
++	target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts);
++	target_stat_values[++index] = atomic_read_unchecked(&qps_created);
++	target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed);
++	target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_closes);
+ 	target_stat_values[++index] = cm_packets_sent;
+ 	target_stat_values[++index] = cm_packets_bounced;
+ 	target_stat_values[++index] = cm_packets_created;
+ 	target_stat_values[++index] = cm_packets_received;
+ 	target_stat_values[++index] = cm_packets_dropped;
+ 	target_stat_values[++index] = cm_packets_retrans;
+-	target_stat_values[++index] = atomic_read(&cm_listens_created);
+-	target_stat_values[++index] = atomic_read(&cm_listens_destroyed);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed);
+ 	target_stat_values[++index] = cm_backlog_drops;
+-	target_stat_values[++index] = atomic_read(&cm_loopbacks);
+-	target_stat_values[++index] = atomic_read(&cm_nodes_created);
+-	target_stat_values[++index] = atomic_read(&cm_nodes_destroyed);
+-	target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts);
+-	target_stat_values[++index] = atomic_read(&cm_resets_recvd);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts);
++	target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd);
+ 	target_stat_values[++index] = nesadapter->free_4kpbl;
+ 	target_stat_values[++index] = nesadapter->free_256pbl;
+ 	target_stat_values[++index] = int_mod_timer_init;
+ 	target_stat_values[++index] = nesvnic->lro_mgr.stats.aggregated;
+ 	target_stat_values[++index] = nesvnic->lro_mgr.stats.flushed;
+ 	target_stat_values[++index] = nesvnic->lro_mgr.stats.no_desc;
+-	target_stat_values[++index] = atomic_read(&pau_qps_created);
+-	target_stat_values[++index] = atomic_read(&pau_qps_destroyed);
++	target_stat_values[++index] = atomic_read_unchecked(&pau_qps_created);
++	target_stat_values[++index] = atomic_read_unchecked(&pau_qps_destroyed);
+ }
+ 
+ /**
+diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
+index eb62461..2b7fc71 100644
+--- a/drivers/infiniband/hw/nes/nes_verbs.c
++++ b/drivers/infiniband/hw/nes/nes_verbs.c
+@@ -46,9 +46,9 @@
+ 
+ #include <rdma/ib_umem.h>
+ 
+-atomic_t mod_qp_timouts;
+-atomic_t qps_created;
+-atomic_t sw_qps_destroyed;
++atomic_unchecked_t mod_qp_timouts;
++atomic_unchecked_t qps_created;
++atomic_unchecked_t sw_qps_destroyed;
+ 
+ static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev);
+ 
+@@ -1134,7 +1134,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
+ 	if (init_attr->create_flags)
+ 		return ERR_PTR(-EINVAL);
+ 
+-	atomic_inc(&qps_created);
++	atomic_inc_unchecked(&qps_created);
+ 	switch (init_attr->qp_type) {
+ 		case IB_QPT_RC:
+ 			if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) {
+@@ -1466,7 +1466,7 @@ static int nes_destroy_qp(struct ib_qp *ibqp)
+ 	struct iw_cm_event cm_event;
+ 	int ret = 0;
+ 
+-	atomic_inc(&sw_qps_destroyed);
++	atomic_inc_unchecked(&sw_qps_destroyed);
+ 	nesqp->destroyed = 1;
+ 
+ 	/* Blow away the connection if it exists. */
+diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h
+index 675d3c7..65d72bc 100644
+--- a/drivers/infiniband/hw/qib/qib.h
++++ b/drivers/infiniband/hw/qib/qib.h
+@@ -52,6 +52,7 @@
+ #include <linux/kref.h>
+ #include <linux/sched.h>
+ #include <linux/kthread.h>
++#include <linux/slab.h>
+ 
+ #include "qib_common.h"
+ #include "qib_verbs.h"
+diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
+index fb787c3..1469995 100644
+--- a/drivers/input/evdev.c
++++ b/drivers/input/evdev.c
+@@ -422,7 +422,7 @@ static int evdev_open(struct inode *inode, struct file *file)
+ 
+  err_free_client:
+ 	evdev_detach_client(evdev, client);
+-	kfree(client);
++	kvfree(client);
+ 	return error;
+ }
+ 
+diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
+index 24c41ba..102d71f 100644
+--- a/drivers/input/gameport/gameport.c
++++ b/drivers/input/gameport/gameport.c
+@@ -490,14 +490,14 @@ EXPORT_SYMBOL(gameport_set_phys);
+  */
+ static void gameport_init_port(struct gameport *gameport)
+ {
+-	static atomic_t gameport_no = ATOMIC_INIT(0);
++	static atomic_unchecked_t gameport_no = ATOMIC_INIT(0);
+ 
+ 	__module_get(THIS_MODULE);
+ 
+ 	mutex_init(&gameport->drv_mutex);
+ 	device_initialize(&gameport->dev);
+ 	dev_set_name(&gameport->dev, "gameport%lu",
+-			(unsigned long)atomic_inc_return(&gameport_no) - 1);
++			(unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1);
+ 	gameport->dev.bus = &gameport_bus;
+ 	gameport->dev.release = gameport_release_port;
+ 	if (gameport->parent)
+diff --git a/drivers/input/input.c b/drivers/input/input.c
+index 29ca0bb..f4bc2e3 100644
+--- a/drivers/input/input.c
++++ b/drivers/input/input.c
+@@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
+  */
+ struct input_dev *input_allocate_device(void)
+ {
+-	static atomic_t input_no = ATOMIC_INIT(0);
++	static atomic_unchecked_t input_no = ATOMIC_INIT(0);
+ 	struct input_dev *dev;
+ 
+ 	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
+@@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
+ 		INIT_LIST_HEAD(&dev->node);
+ 
+ 		dev_set_name(&dev->dev, "input%ld",
+-			     (unsigned long) atomic_inc_return(&input_no) - 1);
++			     (unsigned long) atomic_inc_return_unchecked(&input_no) - 1);
+ 
+ 		__module_get(THIS_MODULE);
+ 	}
+diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
+index 4a95b22..874c182 100644
+--- a/drivers/input/joystick/sidewinder.c
++++ b/drivers/input/joystick/sidewinder.c
+@@ -30,6 +30,7 @@
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/slab.h>
++#include <linux/sched.h>
+ #include <linux/input.h>
+ #include <linux/gameport.h>
+ #include <linux/jiffies.h>
+diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
+index 517829f..5e075c3 100644
+--- a/drivers/input/joystick/xpad.c
++++ b/drivers/input/joystick/xpad.c
+@@ -737,7 +737,7 @@ static void xpad_led_set(struct led_classdev *led_cdev,
+ 
+ static int xpad_led_probe(struct usb_xpad *xpad)
+ {
+-	static atomic_t led_seq	= ATOMIC_INIT(0);
++	static atomic_unchecked_t led_seq	= ATOMIC_INIT(0);
+ 	long led_no;
+ 	struct xpad_led *led;
+ 	struct led_classdev *led_cdev;
+@@ -750,7 +750,7 @@ static int xpad_led_probe(struct usb_xpad *xpad)
+ 	if (!led)
+ 		return -ENOMEM;
+ 
+-	led_no = (long)atomic_inc_return(&led_seq) - 1;
++	led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1;
+ 
+ 	snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
+ 	led->xpad = xpad;
+diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
+index e204f26..8459f15 100644
+--- a/drivers/input/misc/ims-pcu.c
++++ b/drivers/input/misc/ims-pcu.c
+@@ -1621,7 +1621,7 @@ static int ims_pcu_identify_type(struct ims_pcu *pcu, u8 *device_id)
+ 
+ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
+ {
+-	static atomic_t device_no = ATOMIC_INIT(0);
++	static atomic_unchecked_t device_no = ATOMIC_INIT(0);
+ 
+ 	const struct ims_pcu_device_info *info;
+ 	u8 device_id;
+@@ -1653,7 +1653,7 @@ static int ims_pcu_init_application_mode(struct ims_pcu *pcu)
+ 	}
+ 
+ 	/* Device appears to be operable, complete initialization */
+-	pcu->device_no = atomic_inc_return(&device_no) - 1;
++	pcu->device_no = atomic_inc_return_unchecked(&device_no) - 1;
+ 
+ 	error = ims_pcu_setup_backlight(pcu);
+ 	if (error)
+diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
+index 2f0b39d..7370f13 100644
+--- a/drivers/input/mouse/psmouse.h
++++ b/drivers/input/mouse/psmouse.h
+@@ -116,7 +116,7 @@ struct psmouse_attribute {
+ 	ssize_t (*set)(struct psmouse *psmouse, void *data,
+ 			const char *buf, size_t count);
+ 	bool protect;
+-};
++} __do_const;
+ #define to_psmouse_attr(a)	container_of((a), struct psmouse_attribute, dattr)
+ 
+ ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
+diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
+index b604564..3f14ae4 100644
+--- a/drivers/input/mousedev.c
++++ b/drivers/input/mousedev.c
+@@ -744,7 +744,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer,
+ 
+ 	spin_unlock_irq(&client->packet_lock);
+ 
+-	if (copy_to_user(buffer, data, count))
++	if (count > sizeof(data) || copy_to_user(buffer, data, count))
+ 		return -EFAULT;
+ 
+ 	return count;
+diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
+index b29134d..394deb0 100644
+--- a/drivers/input/serio/serio.c
++++ b/drivers/input/serio/serio.c
+@@ -514,7 +514,7 @@ static void serio_release_port(struct device *dev)
+  */
+ static void serio_init_port(struct serio *serio)
+ {
+-	static atomic_t serio_no = ATOMIC_INIT(0);
++	static atomic_unchecked_t serio_no = ATOMIC_INIT(0);
+ 
+ 	__module_get(THIS_MODULE);
+ 
+@@ -525,7 +525,7 @@ static void serio_init_port(struct serio *serio)
+ 	mutex_init(&serio->drv_mutex);
+ 	device_initialize(&serio->dev);
+ 	dev_set_name(&serio->dev, "serio%ld",
+-			(long)atomic_inc_return(&serio_no) - 1);
++			(long)atomic_inc_return_unchecked(&serio_no) - 1);
+ 	serio->dev.bus = &serio_bus;
+ 	serio->dev.release = serio_release_port;
+ 	serio->dev.groups = serio_device_attr_groups;
+diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
+index c9a02fe..0debc75 100644
+--- a/drivers/input/serio/serio_raw.c
++++ b/drivers/input/serio/serio_raw.c
+@@ -292,7 +292,7 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
+ 
+ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
+ {
+-	static atomic_t serio_raw_no = ATOMIC_INIT(0);
++	static atomic_unchecked_t serio_raw_no = ATOMIC_INIT(0);
+ 	struct serio_raw *serio_raw;
+ 	int err;
+ 
+@@ -303,7 +303,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
+ 	}
+ 
+ 	snprintf(serio_raw->name, sizeof(serio_raw->name),
+-		 "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no) - 1);
++		 "serio_raw%ld", (long)atomic_inc_return_unchecked(&serio_raw_no) - 1);
+ 	kref_init(&serio_raw->kref);
+ 	INIT_LIST_HEAD(&serio_raw->client_list);
+ 	init_waitqueue_head(&serio_raw->wait);
+diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
+index 92e2243..8fd9092 100644
+--- a/drivers/input/touchscreen/htcpen.c
++++ b/drivers/input/touchscreen/htcpen.c
+@@ -219,7 +219,7 @@ static struct isa_driver htcpen_isa_driver = {
+ 	}
+ };
+ 
+-static struct dmi_system_id htcshift_dmi_table[] __initdata = {
++static const struct dmi_system_id htcshift_dmi_table[] __initconst = {
+ 	{
+ 		.ident = "Shift",
+ 		.matches = {
+diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
+index 9cbef59..26db8e4 100644
+--- a/drivers/iommu/amd_iommu.c
++++ b/drivers/iommu/amd_iommu.c
+@@ -878,11 +878,21 @@ static void copy_cmd_to_buffer(struct amd_iommu *iommu,
+ 
+ static void build_completion_wait(struct iommu_cmd *cmd, u64 address)
+ {
++	phys_addr_t physaddr;
+ 	WARN_ON(address & 0x7ULL);
+ 
+ 	memset(cmd, 0, sizeof(*cmd));
+-	cmd->data[0] = lower_32_bits(__pa(address)) | CMD_COMPL_WAIT_STORE_MASK;
+-	cmd->data[1] = upper_32_bits(__pa(address));
++
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++	if (object_starts_on_stack((void *)address)) {
++		void *adjbuf = (void *)address - current->stack + current->lowmem_stack;
++		physaddr = __pa((u64)adjbuf);
++	} else
++#endif
++	physaddr = __pa(address);
++
++	cmd->data[0] = lower_32_bits(physaddr) | CMD_COMPL_WAIT_STORE_MASK;
++	cmd->data[1] = upper_32_bits(physaddr);
+ 	cmd->data[2] = 1;
+ 	CMD_SET_TYPE(cmd, CMD_COMPL_WAIT);
+ }
+diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
+index e5555fc..937986d 100644
+--- a/drivers/iommu/iommu.c
++++ b/drivers/iommu/iommu.c
+@@ -588,7 +588,7 @@ static struct notifier_block iommu_bus_nb = {
+ static void iommu_bus_init(struct bus_type *bus, struct iommu_ops *ops)
+ {
+ 	bus_register_notifier(bus, &iommu_bus_nb);
+-	bus_for_each_dev(bus, NULL, ops, add_iommu_group);
++	bus_for_each_dev(bus, NULL, (void *)ops, add_iommu_group);
+ }
+ 
+ /**
+diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
+index 228632c9..edfe331 100644
+--- a/drivers/iommu/irq_remapping.c
++++ b/drivers/iommu/irq_remapping.c
+@@ -356,7 +356,7 @@ int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
+ void panic_if_irq_remap(const char *msg)
+ {
+ 	if (irq_remapping_enabled)
+-		panic(msg);
++		panic("%s", msg);
+ }
+ 
+ static void ir_ack_apic_edge(struct irq_data *data)
+@@ -377,10 +377,12 @@ static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
+ 
+ void irq_remap_modify_chip_defaults(struct irq_chip *chip)
+ {
+-	chip->irq_print_chip = ir_print_prefix;
+-	chip->irq_ack = ir_ack_apic_edge;
+-	chip->irq_eoi = ir_ack_apic_level;
+-	chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
++	pax_open_kernel();
++	*(void **)&chip->irq_print_chip = ir_print_prefix;
++	*(void **)&chip->irq_ack = ir_ack_apic_edge;
++	*(void **)&chip->irq_eoi = ir_ack_apic_level;
++	*(void **)&chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
++	pax_close_kernel();
+ }
+ 
+ bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
+diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
+index 12698ee..a58a958 100644
+--- a/drivers/irqchip/irq-gic.c
++++ b/drivers/irqchip/irq-gic.c
+@@ -85,7 +85,7 @@ static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly;
+  * Supported arch specific GIC irq extension.
+  * Default make them NULL.
+  */
+-struct irq_chip gic_arch_extn = {
++irq_chip_no_const gic_arch_extn = {
+ 	.irq_eoi	= NULL,
+ 	.irq_mask	= NULL,
+ 	.irq_unmask	= NULL,
+@@ -337,7 +337,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
+ 	chained_irq_exit(chip, desc);
+ }
+ 
+-static struct irq_chip gic_chip = {
++static irq_chip_no_const gic_chip __read_only = {
+ 	.name			= "GIC",
+ 	.irq_mask		= gic_mask_irq,
+ 	.irq_unmask		= gic_unmask_irq,
+diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
+index 8777065..a4a9967 100644
+--- a/drivers/irqchip/irq-renesas-irqc.c
++++ b/drivers/irqchip/irq-renesas-irqc.c
+@@ -151,7 +151,7 @@ static int irqc_probe(struct platform_device *pdev)
+ 	struct irqc_priv *p;
+ 	struct resource *io;
+ 	struct resource *irq;
+-	struct irq_chip *irq_chip;
++	irq_chip_no_const *irq_chip;
+ 	const char *name = dev_name(&pdev->dev);
+ 	int ret;
+ 	int k;
+diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
+index ac6f72b..81150f2 100644
+--- a/drivers/isdn/capi/capi.c
++++ b/drivers/isdn/capi/capi.c
+@@ -81,8 +81,8 @@ struct capiminor {
+ 
+ 	struct capi20_appl	*ap;
+ 	u32			ncci;
+-	atomic_t		datahandle;
+-	atomic_t		msgid;
++	atomic_unchecked_t	datahandle;
++	atomic_unchecked_t	msgid;
+ 
+ 	struct tty_port port;
+ 	int                ttyinstop;
+@@ -391,7 +391,7 @@ gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
+ 		capimsg_setu16(s, 2, mp->ap->applid);
+ 		capimsg_setu8 (s, 4, CAPI_DATA_B3);
+ 		capimsg_setu8 (s, 5, CAPI_RESP);
+-		capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid));
++		capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid));
+ 		capimsg_setu32(s, 8, mp->ncci);
+ 		capimsg_setu16(s, 12, datahandle);
+ 	}
+@@ -512,14 +512,14 @@ static void handle_minor_send(struct capiminor *mp)
+ 		mp->outbytes -= len;
+ 		spin_unlock_bh(&mp->outlock);
+ 
+-		datahandle = atomic_inc_return(&mp->datahandle);
++		datahandle = atomic_inc_return_unchecked(&mp->datahandle);
+ 		skb_push(skb, CAPI_DATA_B3_REQ_LEN);
+ 		memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
+ 		capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
+ 		capimsg_setu16(skb->data, 2, mp->ap->applid);
+ 		capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
+ 		capimsg_setu8 (skb->data, 5, CAPI_REQ);
+-		capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid));
++		capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid));
+ 		capimsg_setu32(skb->data, 8, mp->ncci);	/* NCCI */
+ 		capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */
+ 		capimsg_setu16(skb->data, 16, len);	/* Data length */
+diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
+index c44950d..10ac276 100644
+--- a/drivers/isdn/gigaset/bas-gigaset.c
++++ b/drivers/isdn/gigaset/bas-gigaset.c
+@@ -2564,22 +2564,22 @@ static int gigaset_post_reset(struct usb_interface *intf)
+ 
+ 
+ static const struct gigaset_ops gigops = {
+-	gigaset_write_cmd,
+-	gigaset_write_room,
+-	gigaset_chars_in_buffer,
+-	gigaset_brkchars,
+-	gigaset_init_bchannel,
+-	gigaset_close_bchannel,
+-	gigaset_initbcshw,
+-	gigaset_freebcshw,
+-	gigaset_reinitbcshw,
+-	gigaset_initcshw,
+-	gigaset_freecshw,
+-	gigaset_set_modem_ctrl,
+-	gigaset_baud_rate,
+-	gigaset_set_line_ctrl,
+-	gigaset_isoc_send_skb,
+-	gigaset_isoc_input,
++	.write_cmd = gigaset_write_cmd,
++	.write_room = gigaset_write_room,
++	.chars_in_buffer = gigaset_chars_in_buffer,
++	.brkchars = gigaset_brkchars,
++	.init_bchannel = gigaset_init_bchannel,
++	.close_bchannel = gigaset_close_bchannel,
++	.initbcshw = gigaset_initbcshw,
++	.freebcshw = gigaset_freebcshw,
++	.reinitbcshw = gigaset_reinitbcshw,
++	.initcshw = gigaset_initcshw,
++	.freecshw = gigaset_freecshw,
++	.set_modem_ctrl = gigaset_set_modem_ctrl,
++	.baud_rate = gigaset_baud_rate,
++	.set_line_ctrl = gigaset_set_line_ctrl,
++	.send_skb = gigaset_isoc_send_skb,
++	.handle_input = gigaset_isoc_input,
+ };
+ 
+ /* bas_gigaset_init
+diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
+index 600c79b..3752bab 100644
+--- a/drivers/isdn/gigaset/interface.c
++++ b/drivers/isdn/gigaset/interface.c
+@@ -130,9 +130,9 @@ static int if_open(struct tty_struct *tty, struct file *filp)
+ 	}
+ 	tty->driver_data = cs;
+ 
+-	++cs->port.count;
++	atomic_inc(&cs->port.count);
+ 
+-	if (cs->port.count == 1) {
++	if (atomic_read(&cs->port.count) == 1) {
+ 		tty_port_tty_set(&cs->port, tty);
+ 		cs->port.low_latency = 1;
+ 	}
+@@ -156,9 +156,9 @@ static void if_close(struct tty_struct *tty, struct file *filp)
+ 
+ 	if (!cs->connected)
+ 		gig_dbg(DEBUG_IF, "not connected");	/* nothing to do */
+-	else if (!cs->port.count)
++	else if (!atomic_read(&cs->port.count))
+ 		dev_warn(cs->dev, "%s: device not opened\n", __func__);
+-	else if (!--cs->port.count)
++	else if (!atomic_dec_return(&cs->port.count))
+ 		tty_port_tty_set(&cs->port, NULL);
+ 
+ 	mutex_unlock(&cs->mutex);
+diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
+index 8c91fd5..14f13ce 100644
+--- a/drivers/isdn/gigaset/ser-gigaset.c
++++ b/drivers/isdn/gigaset/ser-gigaset.c
+@@ -453,22 +453,22 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
+ }
+ 
+ static const struct gigaset_ops ops = {
+-	gigaset_write_cmd,
+-	gigaset_write_room,
+-	gigaset_chars_in_buffer,
+-	gigaset_brkchars,
+-	gigaset_init_bchannel,
+-	gigaset_close_bchannel,
+-	gigaset_initbcshw,
+-	gigaset_freebcshw,
+-	gigaset_reinitbcshw,
+-	gigaset_initcshw,
+-	gigaset_freecshw,
+-	gigaset_set_modem_ctrl,
+-	gigaset_baud_rate,
+-	gigaset_set_line_ctrl,
+-	gigaset_m10x_send_skb,	/* asyncdata.c */
+-	gigaset_m10x_input,	/* asyncdata.c */
++	.write_cmd = gigaset_write_cmd,
++	.write_room = gigaset_write_room,
++	.chars_in_buffer = gigaset_chars_in_buffer,
++	.brkchars = gigaset_brkchars,
++	.init_bchannel = gigaset_init_bchannel,
++	.close_bchannel = gigaset_close_bchannel,
++	.initbcshw = gigaset_initbcshw,
++	.freebcshw = gigaset_freebcshw,
++	.reinitbcshw = gigaset_reinitbcshw,
++	.initcshw = gigaset_initcshw,
++	.freecshw = gigaset_freecshw,
++	.set_modem_ctrl = gigaset_set_modem_ctrl,
++	.baud_rate = gigaset_baud_rate,
++	.set_line_ctrl = gigaset_set_line_ctrl,
++	.send_skb = gigaset_m10x_send_skb,	/* asyncdata.c */
++	.handle_input = gigaset_m10x_input,	/* asyncdata.c */
+ };
+ 
+ 
+diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
+index d0a41cb..b953e50 100644
+--- a/drivers/isdn/gigaset/usb-gigaset.c
++++ b/drivers/isdn/gigaset/usb-gigaset.c
+@@ -547,7 +547,7 @@ static int gigaset_brkchars(struct cardstate *cs, const unsigned char buf[6])
+ 	gigaset_dbg_buffer(DEBUG_USBREQ, "brkchars", 6, buf);
+ 	memcpy(cs->hw.usb->bchars, buf, 6);
+ 	return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x19, 0x41,
+-			       0, 0, &buf, 6, 2000);
++			       0, 0, buf, 6, 2000);
+ }
+ 
+ static void gigaset_freebcshw(struct bc_state *bcs)
+@@ -869,22 +869,22 @@ static int gigaset_pre_reset(struct usb_interface *intf)
+ }
+ 
+ static const struct gigaset_ops ops = {
+-	gigaset_write_cmd,
+-	gigaset_write_room,
+-	gigaset_chars_in_buffer,
+-	gigaset_brkchars,
+-	gigaset_init_bchannel,
+-	gigaset_close_bchannel,
+-	gigaset_initbcshw,
+-	gigaset_freebcshw,
+-	gigaset_reinitbcshw,
+-	gigaset_initcshw,
+-	gigaset_freecshw,
+-	gigaset_set_modem_ctrl,
+-	gigaset_baud_rate,
+-	gigaset_set_line_ctrl,
+-	gigaset_m10x_send_skb,
+-	gigaset_m10x_input,
++	.write_cmd = gigaset_write_cmd,
++	.write_room = gigaset_write_room,
++	.chars_in_buffer = gigaset_chars_in_buffer,
++	.brkchars = gigaset_brkchars,
++	.init_bchannel = gigaset_init_bchannel,
++	.close_bchannel = gigaset_close_bchannel,
++	.initbcshw = gigaset_initbcshw,
++	.freebcshw = gigaset_freebcshw,
++	.reinitbcshw = gigaset_reinitbcshw,
++	.initcshw = gigaset_initcshw,
++	.freecshw = gigaset_freecshw,
++	.set_modem_ctrl = gigaset_set_modem_ctrl,
++	.baud_rate = gigaset_baud_rate,
++	.set_line_ctrl = gigaset_set_line_ctrl,
++	.send_skb = gigaset_m10x_send_skb,
++	.handle_input = gigaset_m10x_input,
+ };
+ 
+ /*
+diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c
+index 4d9b195..455075c 100644
+--- a/drivers/isdn/hardware/avm/b1.c
++++ b/drivers/isdn/hardware/avm/b1.c
+@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capiloaddatapart *t4file)
+ 	}
+ 	if (left) {
+ 		if (t4file->user) {
+-			if (copy_from_user(buf, dp, left))
++			if (left > sizeof buf || copy_from_user(buf, dp, left))
+ 				return -EFAULT;
+ 		} else {
+ 			memcpy(buf, dp, left);
+@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capiloaddatapart *config)
+ 	}
+ 	if (left) {
+ 		if (config->user) {
+-			if (copy_from_user(buf, dp, left))
++			if (left > sizeof buf || copy_from_user(buf, dp, left))
+ 				return -EFAULT;
+ 		} else {
+ 			memcpy(buf, dp, left);
+diff --git a/drivers/isdn/hardware/eicon/message.c b/drivers/isdn/hardware/eicon/message.c
+index a82e542..f766a79 100644
+--- a/drivers/isdn/hardware/eicon/message.c
++++ b/drivers/isdn/hardware/eicon/message.c
+@@ -1474,7 +1474,7 @@ static byte connect_res(dword Id, word Number, DIVA_CAPI_ADAPTER *a,
+ 					add_ai(plci, &parms[5]);
+ 					sig_req(plci, REJECT, 0);
+ 				}
+-				else if (Reject == 1 || Reject > 9)
++				else if (Reject == 1 || Reject >= 9)
+ 				{
+ 					add_ai(plci, &parms[5]);
+ 					sig_req(plci, HANGUP, 0);
+diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
+index 9bb12ba..d4262f7 100644
+--- a/drivers/isdn/i4l/isdn_common.c
++++ b/drivers/isdn/i4l/isdn_common.c
+@@ -1651,6 +1651,8 @@ isdn_ioctl(struct file *file, uint cmd, ulong arg)
+ 			} else
+ 				return -EINVAL;
+ 		case IIOCDBGVAR:
++			if (!capable(CAP_SYS_RAWIO))
++				return -EPERM;
+ 			if (arg) {
+ 				if (copy_to_user(argp, &dev, sizeof(ulong)))
+ 					return -EFAULT;
+diff --git a/drivers/isdn/i4l/isdn_concap.c b/drivers/isdn/i4l/isdn_concap.c
+index 91d5730..336523e 100644
+--- a/drivers/isdn/i4l/isdn_concap.c
++++ b/drivers/isdn/i4l/isdn_concap.c
+@@ -80,9 +80,9 @@ static int isdn_concap_dl_disconn_req(struct concap_proto *concap)
+ }
+ 
+ struct concap_device_ops isdn_concap_reliable_dl_dops = {
+-	&isdn_concap_dl_data_req,
+-	&isdn_concap_dl_connect_req,
+-	&isdn_concap_dl_disconn_req
++	.data_req = &isdn_concap_dl_data_req,
++	.connect_req = &isdn_concap_dl_connect_req,
++	.disconn_req = &isdn_concap_dl_disconn_req
+ };
+ 
+ /* The following should better go into a dedicated source file such that
+diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
+index 3c5f249..5fac4d0 100644
+--- a/drivers/isdn/i4l/isdn_tty.c
++++ b/drivers/isdn/i4l/isdn_tty.c
+@@ -1508,9 +1508,9 @@ isdn_tty_open(struct tty_struct *tty, struct file *filp)
+ 
+ #ifdef ISDN_DEBUG_MODEM_OPEN
+ 	printk(KERN_DEBUG "isdn_tty_open %s, count = %d\n", tty->name,
+-	       port->count);
++	       atomic_read(&port->count));
+ #endif
+-	port->count++;
++	atomic_inc(&port->count);
+ 	port->tty = tty;
+ 	/*
+ 	 * Start up serial port
+@@ -1554,7 +1554,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
+ #endif
+ 		return;
+ 	}
+-	if ((tty->count == 1) && (port->count != 1)) {
++	if ((tty->count == 1) && (atomic_read(&port->count) != 1)) {
+ 		/*
+ 		 * Uh, oh.  tty->count is 1, which means that the tty
+ 		 * structure will be freed.  Info->count should always
+@@ -1563,15 +1563,15 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
+ 		 * serial port won't be shutdown.
+ 		 */
+ 		printk(KERN_ERR "isdn_tty_close: bad port count; tty->count is 1, "
+-		       "info->count is %d\n", port->count);
+-		port->count = 1;
++		       "info->count is %d\n", atomic_read(&port->count));
++		atomic_set(&port->count, 1);
+ 	}
+-	if (--port->count < 0) {
++	if (atomic_dec_return(&port->count) < 0) {
+ 		printk(KERN_ERR "isdn_tty_close: bad port count for ttyi%d: %d\n",
+-		       info->line, port->count);
+-		port->count = 0;
++		       info->line, atomic_read(&port->count));
++		atomic_set(&port->count, 0);
+ 	}
+-	if (port->count) {
++	if (atomic_read(&port->count)) {
+ #ifdef ISDN_DEBUG_MODEM_OPEN
+ 		printk(KERN_DEBUG "isdn_tty_close after info->count != 0\n");
+ #endif
+@@ -1625,7 +1625,7 @@ isdn_tty_hangup(struct tty_struct *tty)
+ 	if (isdn_tty_paranoia_check(info, tty->name, "isdn_tty_hangup"))
+ 		return;
+ 	isdn_tty_shutdown(info);
+-	port->count = 0;
++	atomic_set(&port->count, 0);
+ 	port->flags &= ~ASYNC_NORMAL_ACTIVE;
+ 	port->tty = NULL;
+ 	wake_up_interruptible(&port->open_wait);
+@@ -1970,7 +1970,7 @@ isdn_tty_find_icall(int di, int ch, setup_parm *setup)
+ 	for (i = 0; i < ISDN_MAX_CHANNELS; i++) {
+ 		modem_info *info = &dev->mdm.info[i];
+ 
+-		if (info->port.count == 0)
++		if (atomic_read(&info->port.count) == 0)
+ 			continue;
+ 		if ((info->emu.mdmreg[REG_SI1] & si2bit[si1]) &&  /* SI1 is matching */
+ 		    (info->emu.mdmreg[REG_SI2] == si2))	{         /* SI2 is matching */
+diff --git a/drivers/isdn/i4l/isdn_x25iface.c b/drivers/isdn/i4l/isdn_x25iface.c
+index e2d4e58..40cd045 100644
+--- a/drivers/isdn/i4l/isdn_x25iface.c
++++ b/drivers/isdn/i4l/isdn_x25iface.c
+@@ -53,14 +53,14 @@ static int isdn_x25iface_disconn_ind(struct concap_proto *);
+ 
+ 
+ static struct concap_proto_ops ix25_pops = {
+-	&isdn_x25iface_proto_new,
+-	&isdn_x25iface_proto_del,
+-	&isdn_x25iface_proto_restart,
+-	&isdn_x25iface_proto_close,
+-	&isdn_x25iface_xmit,
+-	&isdn_x25iface_receive,
+-	&isdn_x25iface_connect_ind,
+-	&isdn_x25iface_disconn_ind
++	.proto_new = &isdn_x25iface_proto_new,
++	.proto_del = &isdn_x25iface_proto_del,
++	.restart = &isdn_x25iface_proto_restart,
++	.close = &isdn_x25iface_proto_close,
++	.encap_and_xmit = &isdn_x25iface_xmit,
++	.data_ind = &isdn_x25iface_receive,
++	.connect_ind = &isdn_x25iface_connect_ind,
++	.disconn_ind = &isdn_x25iface_disconn_ind
+ };
+ 
+ /* error message helper function */
+diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
+index 53d487f..b4987ea 100644
+--- a/drivers/isdn/icn/icn.c
++++ b/drivers/isdn/icn/icn.c
+@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char *buf, int len, int user, icn_card *card)
+ 		if (count > len)
+ 			count = len;
+ 		if (user) {
+-			if (copy_from_user(msg, buf, count))
++			if (count > sizeof msg || copy_from_user(msg, buf, count))
+ 				return -EFAULT;
+ 		} else
+ 			memcpy(msg, buf, count);
+@@ -1155,7 +1155,7 @@ icn_command(isdn_ctrl *c, icn_card *card)
+ 	ulong a;
+ 	ulong flags;
+ 	int i;
+-	char cbuf[60];
++	char cbuf[80];
+ 	isdn_ctrl cmd;
+ 	icn_cdef cdef;
+ 	char __user *arg;
+@@ -1309,7 +1309,6 @@ icn_command(isdn_ctrl *c, icn_card *card)
+ 			break;
+ 		if ((c->arg & 255) < ICN_BCH) {
+ 			char *p;
+-			char dial[50];
+ 			char dcode[4];
+ 
+ 			a = c->arg;
+@@ -1321,10 +1320,10 @@ icn_command(isdn_ctrl *c, icn_card *card)
+ 			} else
+ 				/* Normal Dial */
+ 				strcpy(dcode, "CAL");
+-			strcpy(dial, p);
+-			sprintf(cbuf, "%02d;D%s_R%s,%02d,%02d,%s\n", (int) (a + 1),
+-				dcode, dial, c->parm.setup.si1,
+-				c->parm.setup.si2, c->parm.setup.eazmsn);
++			snprintf(cbuf, sizeof(cbuf),
++				 "%02d;D%s_R%s,%02d,%02d,%s\n", (int) (a + 1),
++				 dcode, p, c->parm.setup.si1,
++				 c->parm.setup.si2, c->parm.setup.eazmsn);
+ 			i = icn_writecmd(cbuf, strlen(cbuf), 0, card);
+ 		}
+ 		break;
+@@ -1610,7 +1609,7 @@ icn_setup(char *line)
+ 	if (ints[0] > 1)
+ 		membase = (unsigned long)ints[2];
+ 	if (str && *str) {
+-		strcpy(sid, str);
++		strlcpy(sid, str, sizeof(sid));
+ 		icn_id = sid;
+ 		if ((p = strchr(sid, ','))) {
+ 			*p++ = 0;
+diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
+index a4f05c5..1433bc5 100644
+--- a/drivers/isdn/mISDN/dsp_cmx.c
++++ b/drivers/isdn/mISDN/dsp_cmx.c
+@@ -1628,7 +1628,7 @@ unsigned long	dsp_spl_jiffies; /* calculate the next time to fire */
+ static u16	dsp_count; /* last sample count */
+ static int	dsp_count_valid; /* if we have last sample count */
+ 
+-void
++void __intentional_overflow(-1)
+ dsp_cmx_send(void *arg)
+ {
+ 	struct dsp_conf *conf;
+diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
+index d93e245..e7ece6b 100644
+--- a/drivers/leds/leds-clevo-mail.c
++++ b/drivers/leds/leds-clevo-mail.c
+@@ -40,7 +40,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
+  * detected as working, but in reality it is not) as low as
+  * possible.
+  */
+-static struct dmi_system_id clevo_mail_led_dmi_table[] __initdata = {
++static struct dmi_system_id clevo_mail_led_dmi_table[] __initconst = {
+ 	{
+ 		.callback = clevo_mail_led_dmi_callback,
+ 		.ident = "Clevo D410J",
+diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
+index 5b8f938..b73d657 100644
+--- a/drivers/leds/leds-ss4200.c
++++ b/drivers/leds/leds-ss4200.c
+@@ -91,7 +91,7 @@ MODULE_PARM_DESC(nodetect, "Skip DMI-based hardware detection");
+  * detected as working, but in reality it is not) as low as
+  * possible.
+  */
+-static struct dmi_system_id nas_led_whitelist[] __initdata = {
++static struct dmi_system_id nas_led_whitelist[] __initconst = {
+ 	{
+ 		.callback = ss4200_led_dmi_callback,
+ 		.ident = "Intel SS4200-E",
+diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
+index 19da222..0552eb9 100644
+--- a/drivers/lguest/core.c
++++ b/drivers/lguest/core.c
+@@ -97,9 +97,17 @@ static __init int map_switcher(void)
+ 	 * The end address needs +1 because __get_vm_area allocates an
+ 	 * extra guard page, so we need space for that.
+ 	 */
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
++				     VM_ALLOC | VM_KERNEXEC, switcher_addr, switcher_addr
++				     + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
++#else
+ 	switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE,
+ 				     VM_ALLOC, switcher_addr, switcher_addr
+ 				     + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE);
++#endif
++
+ 	if (!switcher_vma) {
+ 		err = -ENOMEM;
+ 		printk("lguest: could not map switcher pages high\n");
+@@ -124,7 +132,7 @@ static __init int map_switcher(void)
+ 	 * Now the Switcher is mapped at the right address, we can't fail!
+ 	 * Copy in the compiled-in Switcher code (from x86/switcher_32.S).
+ 	 */
+-	memcpy(switcher_vma->addr, start_switcher_text,
++	memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text),
+ 	       end_switcher_text - start_switcher_text);
+ 
+ 	printk(KERN_INFO "lguest: mapped switcher at %p\n",
+diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
+index bfb39bb..08a603b 100644
+--- a/drivers/lguest/page_tables.c
++++ b/drivers/lguest/page_tables.c
+@@ -559,7 +559,7 @@ void pin_page(struct lg_cpu *cpu, unsigned long vaddr)
+ /*:*/
+ 
+ #ifdef CONFIG_X86_PAE
+-static void release_pmd(pmd_t *spmd)
++static void __intentional_overflow(-1) release_pmd(pmd_t *spmd)
+ {
+ 	/* If the entry's not present, there's nothing to release. */
+ 	if (pmd_flags(*spmd) & _PAGE_PRESENT) {
+diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
+index 922a1ac..9dd0c2a 100644
+--- a/drivers/lguest/x86/core.c
++++ b/drivers/lguest/x86/core.c
+@@ -59,7 +59,7 @@ static struct {
+ /* Offset from where switcher.S was compiled to where we've copied it */
+ static unsigned long switcher_offset(void)
+ {
+-	return switcher_addr - (unsigned long)start_switcher_text;
++	return switcher_addr - (unsigned long)ktla_ktva(start_switcher_text);
+ }
+ 
+ /* This cpu's struct lguest_pages (after the Switcher text page) */
+@@ -99,7 +99,13 @@ static void copy_in_guest_info(struct lg_cpu *cpu, struct lguest_pages *pages)
+ 	 * These copies are pretty cheap, so we do them unconditionally: */
+ 	/* Save the current Host top-level page directory.
+ 	 */
++
++#ifdef CONFIG_PAX_PER_CPU_PGD
++	pages->state.host_cr3 = read_cr3();
++#else
+ 	pages->state.host_cr3 = __pa(current->mm->pgd);
++#endif
++
+ 	/*
+ 	 * Set up the Guest's page tables to see this CPU's pages (and no
+ 	 * other CPU's pages).
+@@ -477,7 +483,7 @@ void __init lguest_arch_host_init(void)
+ 	 * compiled-in switcher code and the high-mapped copy we just made.
+ 	 */
+ 	for (i = 0; i < IDT_ENTRIES; i++)
+-		default_idt_entries[i] += switcher_offset();
++		default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset();
+ 
+ 	/*
+ 	 * Set up the Switcher's per-cpu areas.
+@@ -560,7 +566,7 @@ void __init lguest_arch_host_init(void)
+ 	 * it will be undisturbed when we switch.  To change %cs and jump we
+ 	 * need this structure to feed to Intel's "lcall" instruction.
+ 	 */
+-	lguest_entry.offset = (long)switch_to_guest + switcher_offset();
++	lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset();
+ 	lguest_entry.segment = LGUEST_CS;
+ 
+ 	/*
+diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S
+index 40634b0..4f5855e 100644
+--- a/drivers/lguest/x86/switcher_32.S
++++ b/drivers/lguest/x86/switcher_32.S
+@@ -87,6 +87,7 @@
+ #include <asm/page.h>
+ #include <asm/segment.h>
+ #include <asm/lguest.h>
++#include <asm/processor-flags.h>
+ 
+ // We mark the start of the code to copy
+ // It's placed in .text tho it's never run here
+@@ -149,6 +150,13 @@ ENTRY(switch_to_guest)
+ 	// Changes type when we load it: damn Intel!
+ 	// For after we switch over our page tables
+ 	// That entry will be read-only: we'd crash.
++
++#ifdef CONFIG_PAX_KERNEXEC
++	mov	%cr0, %edx
++	xor	$X86_CR0_WP, %edx
++	mov	%edx, %cr0
++#endif
++
+ 	movl	$(GDT_ENTRY_TSS*8), %edx
+ 	ltr	%dx
+ 
+@@ -157,9 +165,15 @@ ENTRY(switch_to_guest)
+ 	// Let's clear it again for our return.
+ 	// The GDT descriptor of the Host
+ 	// Points to the table after two "size" bytes
+-	movl	(LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx
++	movl	(LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax
+ 	// Clear "used" from type field (byte 5, bit 2)
+-	andb	$0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx)
++	andb	$0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax)
++
++#ifdef CONFIG_PAX_KERNEXEC
++	mov	%cr0, %eax
++	xor	$X86_CR0_WP, %eax
++	mov	%eax, %cr0
++#endif
+ 
+ 	// Once our page table's switched, the Guest is live!
+ 	// The Host fades as we run this final step.
+@@ -295,13 +309,12 @@ deliver_to_host:
+ 	// I consulted gcc, and it gave
+ 	// These instructions, which I gladly credit:
+ 	leal	(%edx,%ebx,8), %eax
+-	movzwl	(%eax),%edx
+-	movl	4(%eax), %eax
+-	xorw	%ax, %ax
+-	orl	%eax, %edx
++	movl	4(%eax), %edx
++	movw	(%eax), %dx
+ 	// Now the address of the handler's in %edx
+ 	// We call it now: its "iret" drops us home.
+-	jmp	*%edx
++	ljmp	$__KERNEL_CS, $1f
++1:	jmp	*%edx
+ 
+ // Every interrupt can come to us here
+ // But we must truly tell each apart.
+diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
+index 7ef7461..5a09dac 100644
+--- a/drivers/md/bcache/closure.h
++++ b/drivers/md/bcache/closure.h
+@@ -238,7 +238,7 @@ static inline void closure_set_stopped(struct closure *cl)
+ static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
+ 				  struct workqueue_struct *wq)
+ {
+-	BUG_ON(object_is_on_stack(cl));
++	BUG_ON(object_starts_on_stack(cl));
+ 	closure_set_ip(cl);
+ 	cl->fn = fn;
+ 	cl->wq = wq;
+diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
+index 8e51b3a..bc6febf 100644
+--- a/drivers/md/bitmap.c
++++ b/drivers/md/bitmap.c
+@@ -1775,7 +1775,7 @@ void bitmap_status(struct seq_file *seq, struct bitmap *bitmap)
+ 		   chunk_kb ? "KB" : "B");
+ 	if (bitmap->storage.file) {
+ 		seq_printf(seq, ", file: ");
+-		seq_path(seq, &bitmap->storage.file->f_path, " \t\n");
++		seq_path(seq, &bitmap->storage.file->f_path, " \t\n\\");
+ 	}
+ 
+ 	seq_printf(seq, "\n");
+diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
+index 5152142..623d141 100644
+--- a/drivers/md/dm-ioctl.c
++++ b/drivers/md/dm-ioctl.c
+@@ -1769,7 +1769,7 @@ static int validate_params(uint cmd, struct dm_ioctl *param)
+ 	    cmd == DM_LIST_VERSIONS_CMD)
+ 		return 0;
+ 
+-	if ((cmd == DM_DEV_CREATE_CMD)) {
++	if (cmd == DM_DEV_CREATE_CMD) {
+ 		if (!*param->name) {
+ 			DMWARN("name not supplied when creating device");
+ 			return -EINVAL;
+diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
+index 089d627..ef7352e 100644
+--- a/drivers/md/dm-raid1.c
++++ b/drivers/md/dm-raid1.c
+@@ -40,7 +40,7 @@ enum dm_raid1_error {
+ 
+ struct mirror {
+ 	struct mirror_set *ms;
+-	atomic_t error_count;
++	atomic_unchecked_t error_count;
+ 	unsigned long error_type;
+ 	struct dm_dev *dev;
+ 	sector_t offset;
+@@ -186,7 +186,7 @@ static struct mirror *get_valid_mirror(struct mirror_set *ms)
+ 	struct mirror *m;
+ 
+ 	for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++)
+-		if (!atomic_read(&m->error_count))
++		if (!atomic_read_unchecked(&m->error_count))
+ 			return m;
+ 
+ 	return NULL;
+@@ -218,7 +218,7 @@ static void fail_mirror(struct mirror *m, enum dm_raid1_error error_type)
+ 	 * simple way to tell if a device has encountered
+ 	 * errors.
+ 	 */
+-	atomic_inc(&m->error_count);
++	atomic_inc_unchecked(&m->error_count);
+ 
+ 	if (test_and_set_bit(error_type, &m->error_type))
+ 		return;
+@@ -409,7 +409,7 @@ static struct mirror *choose_mirror(struct mirror_set *ms, sector_t sector)
+ 	struct mirror *m = get_default_mirror(ms);
+ 
+ 	do {
+-		if (likely(!atomic_read(&m->error_count)))
++		if (likely(!atomic_read_unchecked(&m->error_count)))
+ 			return m;
+ 
+ 		if (m-- == ms->mirror)
+@@ -423,7 +423,7 @@ static int default_ok(struct mirror *m)
+ {
+ 	struct mirror *default_mirror = get_default_mirror(m->ms);
+ 
+-	return !atomic_read(&default_mirror->error_count);
++	return !atomic_read_unchecked(&default_mirror->error_count);
+ }
+ 
+ static int mirror_available(struct mirror_set *ms, struct bio *bio)
+@@ -560,7 +560,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
+ 		 */
+ 		if (likely(region_in_sync(ms, region, 1)))
+ 			m = choose_mirror(ms, bio->bi_iter.bi_sector);
+-		else if (m && atomic_read(&m->error_count))
++		else if (m && atomic_read_unchecked(&m->error_count))
+ 			m = NULL;
+ 
+ 		if (likely(m))
+@@ -936,7 +936,7 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
+ 	}
+ 
+ 	ms->mirror[mirror].ms = ms;
+-	atomic_set(&(ms->mirror[mirror].error_count), 0);
++	atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0);
+ 	ms->mirror[mirror].error_type = 0;
+ 	ms->mirror[mirror].offset = offset;
+ 
+@@ -1351,7 +1351,7 @@ static void mirror_resume(struct dm_target *ti)
+  */
+ static char device_status_char(struct mirror *m)
+ {
+-	if (!atomic_read(&(m->error_count)))
++	if (!atomic_read_unchecked(&(m->error_count)))
+ 		return 'A';
+ 
+ 	return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' :
+diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
+index 28a9012..9c0f6a5 100644
+--- a/drivers/md/dm-stats.c
++++ b/drivers/md/dm-stats.c
+@@ -382,7 +382,7 @@ do_sync_free:
+ 		synchronize_rcu_expedited();
+ 		dm_stat_free(&s->rcu_head);
+ 	} else {
+-		ACCESS_ONCE(dm_stat_need_rcu_barrier) = 1;
++		ACCESS_ONCE_RW(dm_stat_need_rcu_barrier) = 1;
+ 		call_rcu(&s->rcu_head, dm_stat_free);
+ 	}
+ 	return 0;
+@@ -554,8 +554,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
+ 				       ((bi_rw & (REQ_WRITE | REQ_DISCARD)) ==
+ 					(ACCESS_ONCE(last->last_rw) & (REQ_WRITE | REQ_DISCARD)))
+ 				       ));
+-		ACCESS_ONCE(last->last_sector) = end_sector;
+-		ACCESS_ONCE(last->last_rw) = bi_rw;
++		ACCESS_ONCE_RW(last->last_sector) = end_sector;
++		ACCESS_ONCE_RW(last->last_rw) = bi_rw;
+ 	}
+ 
+ 	rcu_read_lock();
+diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
+index d1600d2..4c3af3a 100644
+--- a/drivers/md/dm-stripe.c
++++ b/drivers/md/dm-stripe.c
+@@ -21,7 +21,7 @@ struct stripe {
+ 	struct dm_dev *dev;
+ 	sector_t physical_start;
+ 
+-	atomic_t error_count;
++	atomic_unchecked_t error_count;
+ };
+ 
+ struct stripe_c {
+@@ -186,7 +186,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+ 			kfree(sc);
+ 			return r;
+ 		}
+-		atomic_set(&(sc->stripe[i].error_count), 0);
++		atomic_set_unchecked(&(sc->stripe[i].error_count), 0);
+ 	}
+ 
+ 	ti->private = sc;
+@@ -330,7 +330,7 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
+ 		DMEMIT("%d ", sc->stripes);
+ 		for (i = 0; i < sc->stripes; i++)  {
+ 			DMEMIT("%s ", sc->stripe[i].dev->name);
+-			buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ?
++			buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ?
+ 				'D' : 'A';
+ 		}
+ 		buffer[i] = '\0';
+@@ -375,8 +375,8 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
+ 	 */
+ 	for (i = 0; i < sc->stripes; i++)
+ 		if (!strcmp(sc->stripe[i].dev->name, major_minor)) {
+-			atomic_inc(&(sc->stripe[i].error_count));
+-			if (atomic_read(&(sc->stripe[i].error_count)) <
++			atomic_inc_unchecked(&(sc->stripe[i].error_count));
++			if (atomic_read_unchecked(&(sc->stripe[i].error_count)) <
+ 			    DM_IO_ERROR_THRESHOLD)
+ 				schedule_work(&sc->trigger_event);
+ 		}
+diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
+index 6a7f2b8..fea0bde 100644
+--- a/drivers/md/dm-table.c
++++ b/drivers/md/dm-table.c
+@@ -274,7 +274,7 @@ static struct dm_dev_internal *find_device(struct list_head *l, dev_t dev)
+ static int open_dev(struct dm_dev_internal *d, dev_t dev,
+ 		    struct mapped_device *md)
+ {
+-	static char *_claim_ptr = "I belong to device-mapper";
++	static char _claim_ptr[] = "I belong to device-mapper";
+ 	struct block_device *bdev;
+ 
+ 	int r;
+@@ -342,7 +342,7 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev,
+ 	if (!dev_size)
+ 		return 0;
+ 
+-	if ((start >= dev_size) || (start + len > dev_size)) {
++	if ((start >= dev_size) || (len > dev_size - start)) {
+ 		DMWARN("%s: %s too small for target: "
+ 		       "start=%llu, len=%llu, dev_size=%llu",
+ 		       dm_device_name(ti->table->md), bdevname(bdev, b),
+diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
+index e9d33ad..dae9880d 100644
+--- a/drivers/md/dm-thin-metadata.c
++++ b/drivers/md/dm-thin-metadata.c
+@@ -404,7 +404,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
+ {
+ 	pmd->info.tm = pmd->tm;
+ 	pmd->info.levels = 2;
+-	pmd->info.value_type.context = pmd->data_sm;
++	pmd->info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
+ 	pmd->info.value_type.size = sizeof(__le64);
+ 	pmd->info.value_type.inc = data_block_inc;
+ 	pmd->info.value_type.dec = data_block_dec;
+@@ -423,7 +423,7 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
+ 
+ 	pmd->bl_info.tm = pmd->tm;
+ 	pmd->bl_info.levels = 1;
+-	pmd->bl_info.value_type.context = pmd->data_sm;
++	pmd->bl_info.value_type.context = (dm_space_map_no_const *)pmd->data_sm;
+ 	pmd->bl_info.value_type.size = sizeof(__le64);
+ 	pmd->bl_info.value_type.inc = data_block_inc;
+ 	pmd->bl_info.value_type.dec = data_block_dec;
+diff --git a/drivers/md/dm.c b/drivers/md/dm.c
+index e400591..a94ae6b 100644
+--- a/drivers/md/dm.c
++++ b/drivers/md/dm.c
+@@ -187,9 +187,9 @@ struct mapped_device {
+ 	/*
+ 	 * Event handling.
+ 	 */
+-	atomic_t event_nr;
++	atomic_unchecked_t event_nr;
+ 	wait_queue_head_t eventq;
+-	atomic_t uevent_seq;
++	atomic_unchecked_t uevent_seq;
+ 	struct list_head uevent_list;
+ 	spinlock_t uevent_lock; /* Protect access to uevent_list */
+ 
+@@ -1899,8 +1899,8 @@ static struct mapped_device *alloc_dev(int minor)
+ 	spin_lock_init(&md->deferred_lock);
+ 	atomic_set(&md->holders, 1);
+ 	atomic_set(&md->open_count, 0);
+-	atomic_set(&md->event_nr, 0);
+-	atomic_set(&md->uevent_seq, 0);
++	atomic_set_unchecked(&md->event_nr, 0);
++	atomic_set_unchecked(&md->uevent_seq, 0);
+ 	INIT_LIST_HEAD(&md->uevent_list);
+ 	spin_lock_init(&md->uevent_lock);
+ 
+@@ -2054,7 +2054,7 @@ static void event_callback(void *context)
+ 
+ 	dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
+ 
+-	atomic_inc(&md->event_nr);
++	atomic_inc_unchecked(&md->event_nr);
+ 	wake_up(&md->eventq);
+ }
+ 
+@@ -2746,18 +2746,18 @@ int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
+ 
+ uint32_t dm_next_uevent_seq(struct mapped_device *md)
+ {
+-	return atomic_add_return(1, &md->uevent_seq);
++	return atomic_add_return_unchecked(1, &md->uevent_seq);
+ }
+ 
+ uint32_t dm_get_event_nr(struct mapped_device *md)
+ {
+-	return atomic_read(&md->event_nr);
++	return atomic_read_unchecked(&md->event_nr);
+ }
+ 
+ int dm_wait_event(struct mapped_device *md, int event_nr)
+ {
+ 	return wait_event_interruptible(md->eventq,
+-			(event_nr != atomic_read(&md->event_nr)));
++			(event_nr != atomic_read_unchecked(&md->event_nr)));
+ }
+ 
+ void dm_uevent_add(struct mapped_device *md, struct list_head *elist)
+diff --git a/drivers/md/md.c b/drivers/md/md.c
+index 40959ee..ba57756 100644
+--- a/drivers/md/md.c
++++ b/drivers/md/md.c
+@@ -194,10 +194,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev);
+  *  start build, activate spare
+  */
+ static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters);
+-static atomic_t md_event_count;
++static atomic_unchecked_t md_event_count;
+ void md_new_event(struct mddev *mddev)
+ {
+-	atomic_inc(&md_event_count);
++	atomic_inc_unchecked(&md_event_count);
+ 	wake_up(&md_event_waiters);
+ }
+ EXPORT_SYMBOL_GPL(md_new_event);
+@@ -207,7 +207,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
+  */
+ static void md_new_event_inintr(struct mddev *mddev)
+ {
+-	atomic_inc(&md_event_count);
++	atomic_inc_unchecked(&md_event_count);
+ 	wake_up(&md_event_waiters);
+ }
+ 
+@@ -1462,7 +1462,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
+ 	if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE) &&
+ 	    (le32_to_cpu(sb->feature_map) & MD_FEATURE_NEW_OFFSET))
+ 		rdev->new_data_offset += (s32)le32_to_cpu(sb->new_offset);
+-	atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
++	atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
+ 
+ 	rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256;
+ 	bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1;
+@@ -1713,7 +1713,7 @@ static void super_1_sync(struct mddev *mddev, struct md_rdev *rdev)
+ 	else
+ 		sb->resync_offset = cpu_to_le64(0);
+ 
+-	sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors));
++	sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors));
+ 
+ 	sb->raid_disks = cpu_to_le32(mddev->raid_disks);
+ 	sb->size = cpu_to_le64(mddev->dev_sectors);
+@@ -2725,7 +2725,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_show, state_store);
+ static ssize_t
+ errors_show(struct md_rdev *rdev, char *page)
+ {
+-	return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors));
++	return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors));
+ }
+ 
+ static ssize_t
+@@ -2734,7 +2734,7 @@ errors_store(struct md_rdev *rdev, const char *buf, size_t len)
+ 	char *e;
+ 	unsigned long n = simple_strtoul(buf, &e, 10);
+ 	if (*buf && (*e == 0 || *e == '\n')) {
+-		atomic_set(&rdev->corrected_errors, n);
++		atomic_set_unchecked(&rdev->corrected_errors, n);
+ 		return len;
+ 	}
+ 	return -EINVAL;
+@@ -3183,8 +3183,8 @@ int md_rdev_init(struct md_rdev *rdev)
+ 	rdev->sb_loaded = 0;
+ 	rdev->bb_page = NULL;
+ 	atomic_set(&rdev->nr_pending, 0);
+-	atomic_set(&rdev->read_errors, 0);
+-	atomic_set(&rdev->corrected_errors, 0);
++	atomic_set_unchecked(&rdev->read_errors, 0);
++	atomic_set_unchecked(&rdev->corrected_errors, 0);
+ 
+ 	INIT_LIST_HEAD(&rdev->same_set);
+ 	init_waitqueue_head(&rdev->blocked_wait);
+@@ -7079,7 +7079,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
+ 
+ 		spin_unlock(&pers_lock);
+ 		seq_printf(seq, "\n");
+-		seq->poll_event = atomic_read(&md_event_count);
++		seq->poll_event = atomic_read_unchecked(&md_event_count);
+ 		return 0;
+ 	}
+ 	if (v == (void*)2) {
+@@ -7182,7 +7182,7 @@ static int md_seq_open(struct inode *inode, struct file *file)
+ 		return error;
+ 
+ 	seq = file->private_data;
+-	seq->poll_event = atomic_read(&md_event_count);
++	seq->poll_event = atomic_read_unchecked(&md_event_count);
+ 	return error;
+ }
+ 
+@@ -7196,7 +7196,7 @@ static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
+ 	/* always allow read */
+ 	mask = POLLIN | POLLRDNORM;
+ 
+-	if (seq->poll_event != atomic_read(&md_event_count))
++	if (seq->poll_event != atomic_read_unchecked(&md_event_count))
+ 		mask |= POLLERR | POLLPRI;
+ 	return mask;
+ }
+@@ -7240,7 +7240,7 @@ static int is_mddev_idle(struct mddev *mddev, int init)
+ 		struct gendisk *disk = rdev->bdev->bd_contains->bd_disk;
+ 		curr_events = (int)part_stat_read(&disk->part0, sectors[0]) +
+ 			      (int)part_stat_read(&disk->part0, sectors[1]) -
+-			      atomic_read(&disk->sync_io);
++			      atomic_read_unchecked(&disk->sync_io);
+ 		/* sync IO will cause sync_io to increase before the disk_stats
+ 		 * as sync_io is counted when a request starts, and
+ 		 * disk_stats is counted when it completes.
+diff --git a/drivers/md/md.h b/drivers/md/md.h
+index 07bba96..2d6788c 100644
+--- a/drivers/md/md.h
++++ b/drivers/md/md.h
+@@ -94,13 +94,13 @@ struct md_rdev {
+ 					 * only maintained for arrays that
+ 					 * support hot removal
+ 					 */
+-	atomic_t	read_errors;	/* number of consecutive read errors that
++	atomic_unchecked_t	read_errors;	/* number of consecutive read errors that
+ 					 * we have tried to ignore.
+ 					 */
+ 	struct timespec last_read_error;	/* monotonic time since our
+ 						 * last read error
+ 						 */
+-	atomic_t	corrected_errors; /* number of corrected read errors,
++	atomic_unchecked_t	corrected_errors; /* number of corrected read errors,
+ 					   * for reporting to userspace and storing
+ 					   * in superblock.
+ 					   */
+@@ -449,7 +449,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
+ 
+ static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors)
+ {
+-        atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
++	atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
+ }
+ 
+ struct md_personality
+diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
+index f4e22bc..8f83114 100644
+--- a/drivers/md/persistent-data/dm-space-map-metadata.c
++++ b/drivers/md/persistent-data/dm-space-map-metadata.c
+@@ -681,7 +681,7 @@ static int sm_metadata_extend(struct dm_space_map *sm, dm_block_t extra_blocks)
+ 	 * Flick into a mode where all blocks get allocated in the new area.
+ 	 */
+ 	smm->begin = old_len;
+-	memcpy(sm, &bootstrap_ops, sizeof(*sm));
++	memcpy((void *)sm, &bootstrap_ops, sizeof(*sm));
+ 
+ 	/*
+ 	 * Extend.
+@@ -712,7 +712,7 @@ out:
+ 	/*
+ 	 * Switch back to normal behaviour.
+ 	 */
+-	memcpy(sm, &ops, sizeof(*sm));
++	memcpy((void *)sm, &ops, sizeof(*sm));
+ 	return r;
+ }
+ 
+diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h
+index 3e6d115..ffecdeb 100644
+--- a/drivers/md/persistent-data/dm-space-map.h
++++ b/drivers/md/persistent-data/dm-space-map.h
+@@ -71,6 +71,7 @@ struct dm_space_map {
+ 					   dm_sm_threshold_fn fn,
+ 					   void *context);
+ };
++typedef struct dm_space_map __no_const dm_space_map_no_const;
+ 
+ /*----------------------------------------------------------------*/
+ 
+diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
+index b96ee9d..1d38b21 100644
+--- a/drivers/md/raid1.c
++++ b/drivers/md/raid1.c
+@@ -1937,7 +1937,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
+ 			if (r1_sync_page_io(rdev, sect, s,
+ 					    bio->bi_io_vec[idx].bv_page,
+ 					    READ) != 0)
+-				atomic_add(s, &rdev->corrected_errors);
++				atomic_add_unchecked(s, &rdev->corrected_errors);
+ 		}
+ 		sectors -= s;
+ 		sect += s;
+@@ -2171,7 +2171,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
+ 			    !test_bit(Faulty, &rdev->flags)) {
+ 				if (r1_sync_page_io(rdev, sect, s,
+ 						    conf->tmppage, READ)) {
+-					atomic_add(s, &rdev->corrected_errors);
++					atomic_add_unchecked(s, &rdev->corrected_errors);
+ 					printk(KERN_INFO
+ 					       "md/raid1:%s: read error corrected "
+ 					       "(%d sectors at %llu on %s)\n",
+diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
+index a46124e..caf0bd55 100644
+--- a/drivers/md/raid10.c
++++ b/drivers/md/raid10.c
+@@ -1948,7 +1948,7 @@ static void end_sync_read(struct bio *bio, int error)
+ 		/* The write handler will notice the lack of
+ 		 * R10BIO_Uptodate and record any errors etc
+ 		 */
+-		atomic_add(r10_bio->sectors,
++		atomic_add_unchecked(r10_bio->sectors,
+ 			   &conf->mirrors[d].rdev->corrected_errors);
+ 
+ 	/* for reconstruct, we always reschedule after a read.
+@@ -2306,7 +2306,7 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
+ {
+ 	struct timespec cur_time_mon;
+ 	unsigned long hours_since_last;
+-	unsigned int read_errors = atomic_read(&rdev->read_errors);
++	unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors);
+ 
+ 	ktime_get_ts(&cur_time_mon);
+ 
+@@ -2328,9 +2328,9 @@ static void check_decay_read_errors(struct mddev *mddev, struct md_rdev *rdev)
+ 	 * overflowing the shift of read_errors by hours_since_last.
+ 	 */
+ 	if (hours_since_last >= 8 * sizeof(read_errors))
+-		atomic_set(&rdev->read_errors, 0);
++		atomic_set_unchecked(&rdev->read_errors, 0);
+ 	else
+-		atomic_set(&rdev->read_errors, read_errors >> hours_since_last);
++		atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last);
+ }
+ 
+ static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
+@@ -2384,8 +2384,8 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
+ 		return;
+ 
+ 	check_decay_read_errors(mddev, rdev);
+-	atomic_inc(&rdev->read_errors);
+-	if (atomic_read(&rdev->read_errors) > max_read_errors) {
++	atomic_inc_unchecked(&rdev->read_errors);
++	if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) {
+ 		char b[BDEVNAME_SIZE];
+ 		bdevname(rdev->bdev, b);
+ 
+@@ -2393,7 +2393,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
+ 		       "md/raid10:%s: %s: Raid device exceeded "
+ 		       "read_error threshold [cur %d:max %d]\n",
+ 		       mdname(mddev), b,
+-		       atomic_read(&rdev->read_errors), max_read_errors);
++		       atomic_read_unchecked(&rdev->read_errors), max_read_errors);
+ 		printk(KERN_NOTICE
+ 		       "md/raid10:%s: %s: Failing raid device\n",
+ 		       mdname(mddev), b);
+@@ -2548,7 +2548,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
+ 					       sect +
+ 					       choose_data_offset(r10_bio, rdev)),
+ 				       bdevname(rdev->bdev, b));
+-				atomic_add(s, &rdev->corrected_errors);
++				atomic_add_unchecked(s, &rdev->corrected_errors);
+ 			}
+ 
+ 			rdev_dec_pending(rdev, mddev);
+diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
+index b98c70e..83d3273 100644
+--- a/drivers/md/raid5.c
++++ b/drivers/md/raid5.c
+@@ -942,23 +942,23 @@ async_copy_data(int frombio, struct bio *bio, struct page *page,
+ 	struct bio_vec bvl;
+ 	struct bvec_iter iter;
+ 	struct page *bio_page;
+-	int page_offset;
++	s64 page_offset;
+ 	struct async_submit_ctl submit;
+ 	enum async_tx_flags flags = 0;
+ 
+ 	if (bio->bi_iter.bi_sector >= sector)
+-		page_offset = (signed)(bio->bi_iter.bi_sector - sector) * 512;
++		page_offset = (s64)(bio->bi_iter.bi_sector - sector) * 512;
+ 	else
+-		page_offset = (signed)(sector - bio->bi_iter.bi_sector) * -512;
++		page_offset = (s64)(sector - bio->bi_iter.bi_sector) * -512;
+ 
+ 	if (frombio)
+ 		flags |= ASYNC_TX_FENCE;
+ 	init_async_submit(&submit, flags, tx, NULL, NULL, NULL);
+ 
+ 	bio_for_each_segment(bvl, bio, iter) {
+-		int len = bvl.bv_len;
+-		int clen;
+-		int b_offset = 0;
++		s64 len = bvl.bv_len;
++		s64 clen;
++		s64 b_offset = 0;
+ 
+ 		if (page_offset < 0) {
+ 			b_offset = -page_offset;
+@@ -1711,6 +1711,10 @@ static int grow_one_stripe(struct r5conf *conf, int hash)
+ 	return 1;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++static atomic_unchecked_t raid5_cache_id = ATOMIC_INIT(0);
++#endif
++
+ static int grow_stripes(struct r5conf *conf, int num)
+ {
+ 	struct kmem_cache *sc;
+@@ -1722,7 +1726,11 @@ static int grow_stripes(struct r5conf *conf, int num)
+ 			"raid%d-%s", conf->level, mdname(conf->mddev));
+ 	else
+ 		sprintf(conf->cache_name[0],
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++			"raid%d-%08lx", conf->level, atomic_inc_return_unchecked(&raid5_cache_id));
++#else
+ 			"raid%d-%p", conf->level, conf->mddev);
++#endif
+ 	sprintf(conf->cache_name[1], "%s-alt", conf->cache_name[0]);
+ 
+ 	conf->active_name = 0;
+@@ -1996,21 +2004,21 @@ static void raid5_end_read_request(struct bio * bi, int error)
+ 				mdname(conf->mddev), STRIPE_SECTORS,
+ 				(unsigned long long)s,
+ 				bdevname(rdev->bdev, b));
+-			atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
++			atomic_add_unchecked(STRIPE_SECTORS, &rdev->corrected_errors);
+ 			clear_bit(R5_ReadError, &sh->dev[i].flags);
+ 			clear_bit(R5_ReWrite, &sh->dev[i].flags);
+ 		} else if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
+ 			clear_bit(R5_ReadNoMerge, &sh->dev[i].flags);
+ 
+-		if (atomic_read(&rdev->read_errors))
+-			atomic_set(&rdev->read_errors, 0);
++		if (atomic_read_unchecked(&rdev->read_errors))
++			atomic_set_unchecked(&rdev->read_errors, 0);
+ 	} else {
+ 		const char *bdn = bdevname(rdev->bdev, b);
+ 		int retry = 0;
+ 		int set_bad = 0;
+ 
+ 		clear_bit(R5_UPTODATE, &sh->dev[i].flags);
+-		atomic_inc(&rdev->read_errors);
++		atomic_inc_unchecked(&rdev->read_errors);
+ 		if (test_bit(R5_ReadRepl, &sh->dev[i].flags))
+ 			printk_ratelimited(
+ 				KERN_WARNING
+@@ -2038,7 +2046,7 @@ static void raid5_end_read_request(struct bio * bi, int error)
+ 				mdname(conf->mddev),
+ 				(unsigned long long)s,
+ 				bdn);
+-		} else if (atomic_read(&rdev->read_errors)
++		} else if (atomic_read_unchecked(&rdev->read_errors)
+ 			 > conf->max_nr_stripes)
+ 			printk(KERN_WARNING
+ 			       "md/raid:%s: Too many read errors, failing device %s.\n",
+diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
+index 983db75..ef9248c 100644
+--- a/drivers/media/dvb-core/dvbdev.c
++++ b/drivers/media/dvb-core/dvbdev.c
+@@ -185,7 +185,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev,
+ 			const struct dvb_device *template, void *priv, int type)
+ {
+ 	struct dvb_device *dvbdev;
+-	struct file_operations *dvbdevfops;
++	file_operations_no_const *dvbdevfops;
+ 	struct device *clsdev;
+ 	int minor;
+ 	int id;
+diff --git a/drivers/media/dvb-frontends/dib3000.h b/drivers/media/dvb-frontends/dib3000.h
+index 9b6c3bb..baeb5c7 100644
+--- a/drivers/media/dvb-frontends/dib3000.h
++++ b/drivers/media/dvb-frontends/dib3000.h
+@@ -39,7 +39,7 @@ struct dib_fe_xfer_ops
+ 	int (*fifo_ctrl)(struct dvb_frontend *fe, int onoff);
+ 	int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff);
+ 	int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
+-};
++} __no_const;
+ 
+ #if IS_ENABLED(CONFIG_DVB_DIB3000MB)
+ extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
+diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
+index ed8cb90..5ef7f79 100644
+--- a/drivers/media/pci/cx88/cx88-video.c
++++ b/drivers/media/pci/cx88/cx88-video.c
+@@ -50,9 +50,9 @@ MODULE_VERSION(CX88_VERSION);
+ 
+ /* ------------------------------------------------------------------ */
+ 
+-static unsigned int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+-static unsigned int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+-static unsigned int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
++static int video_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
++static int vbi_nr[]   = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
++static int radio_nr[] = {[0 ... (CX88_MAXBOARDS - 1)] = UNSET };
+ 
+ module_param_array(video_nr, int, NULL, 0444);
+ module_param_array(vbi_nr,   int, NULL, 0444);
+diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
+index 802642d..5534900 100644
+--- a/drivers/media/pci/ivtv/ivtv-driver.c
++++ b/drivers/media/pci/ivtv/ivtv-driver.c
+@@ -83,7 +83,7 @@ static struct pci_device_id ivtv_pci_tbl[] = {
+ MODULE_DEVICE_TABLE(pci,ivtv_pci_tbl);
+ 
+ /* ivtv instance counter */
+-static atomic_t ivtv_instance = ATOMIC_INIT(0);
++static atomic_unchecked_t ivtv_instance = ATOMIC_INIT(0);
+ 
+ /* Parameter declarations */
+ static int cardtype[IVTV_MAX_CARDS];
+diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
+index dfd0a21..6bbb465 100644
+--- a/drivers/media/platform/omap/omap_vout.c
++++ b/drivers/media/platform/omap/omap_vout.c
+@@ -63,7 +63,6 @@ enum omap_vout_channels {
+ 	OMAP_VIDEO2,
+ };
+ 
+-static struct videobuf_queue_ops video_vbq_ops;
+ /* Variables configurable through module params*/
+ static u32 video1_numbuffers = 3;
+ static u32 video2_numbuffers = 3;
+@@ -1014,6 +1013,12 @@ static int omap_vout_open(struct file *file)
+ {
+ 	struct videobuf_queue *q;
+ 	struct omap_vout_device *vout = NULL;
++	static struct videobuf_queue_ops video_vbq_ops = {
++		.buf_setup = omap_vout_buffer_setup,
++		.buf_prepare = omap_vout_buffer_prepare,
++		.buf_release = omap_vout_buffer_release,
++		.buf_queue = omap_vout_buffer_queue,
++	};
+ 
+ 	vout = video_drvdata(file);
+ 	v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__);
+@@ -1031,10 +1036,6 @@ static int omap_vout_open(struct file *file)
+ 	vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ 
+ 	q = &vout->vbq;
+-	video_vbq_ops.buf_setup = omap_vout_buffer_setup;
+-	video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
+-	video_vbq_ops.buf_release = omap_vout_buffer_release;
+-	video_vbq_ops.buf_queue = omap_vout_buffer_queue;
+ 	spin_lock_init(&vout->vbq_lock);
+ 
+ 	videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev,
+diff --git a/drivers/media/platform/s5p-tv/mixer.h b/drivers/media/platform/s5p-tv/mixer.h
+index fb2acc5..a2fcbdc4 100644
+--- a/drivers/media/platform/s5p-tv/mixer.h
++++ b/drivers/media/platform/s5p-tv/mixer.h
+@@ -156,7 +156,7 @@ struct mxr_layer {
+ 	/** layer index (unique identifier) */
+ 	int idx;
+ 	/** callbacks for layer methods */
+-	struct mxr_layer_ops ops;
++	struct mxr_layer_ops *ops;
+ 	/** format array */
+ 	const struct mxr_format **fmt_array;
+ 	/** size of format array */
+diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
+index 74344c7..a39e70e 100644
+--- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
++++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
+@@ -235,7 +235,7 @@ struct mxr_layer *mxr_graph_layer_create(struct mxr_device *mdev, int idx)
+ {
+ 	struct mxr_layer *layer;
+ 	int ret;
+-	struct mxr_layer_ops ops = {
++	static struct mxr_layer_ops ops = {
+ 		.release = mxr_graph_layer_release,
+ 		.buffer_set = mxr_graph_buffer_set,
+ 		.stream_set = mxr_graph_stream_set,
+diff --git a/drivers/media/platform/s5p-tv/mixer_reg.c b/drivers/media/platform/s5p-tv/mixer_reg.c
+index b713403..53cb5ad 100644
+--- a/drivers/media/platform/s5p-tv/mixer_reg.c
++++ b/drivers/media/platform/s5p-tv/mixer_reg.c
+@@ -276,7 +276,7 @@ static void mxr_irq_layer_handle(struct mxr_layer *layer)
+ 		layer->update_buf = next;
+ 	}
+ 
+-	layer->ops.buffer_set(layer, layer->update_buf);
++	layer->ops->buffer_set(layer, layer->update_buf);
+ 
+ 	if (done && done != layer->shadow_buf)
+ 		vb2_buffer_done(&done->vb, VB2_BUF_STATE_DONE);
+diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
+index c5059ba..2649f28 100644
+--- a/drivers/media/platform/s5p-tv/mixer_video.c
++++ b/drivers/media/platform/s5p-tv/mixer_video.c
+@@ -210,7 +210,7 @@ static void mxr_layer_default_geo(struct mxr_layer *layer)
+ 	layer->geo.src.height = layer->geo.src.full_height;
+ 
+ 	mxr_geometry_dump(mdev, &layer->geo);
+-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
++	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
+ 	mxr_geometry_dump(mdev, &layer->geo);
+ }
+ 
+@@ -228,7 +228,7 @@ static void mxr_layer_update_output(struct mxr_layer *layer)
+ 	layer->geo.dst.full_width = mbus_fmt.width;
+ 	layer->geo.dst.full_height = mbus_fmt.height;
+ 	layer->geo.dst.field = mbus_fmt.field;
+-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
++	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
+ 
+ 	mxr_geometry_dump(mdev, &layer->geo);
+ }
+@@ -334,7 +334,7 @@ static int mxr_s_fmt(struct file *file, void *priv,
+ 	/* set source size to highest accepted value */
+ 	geo->src.full_width = max(geo->dst.full_width, pix->width);
+ 	geo->src.full_height = max(geo->dst.full_height, pix->height);
+-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
++	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
+ 	mxr_geometry_dump(mdev, &layer->geo);
+ 	/* set cropping to total visible screen */
+ 	geo->src.width = pix->width;
+@@ -342,12 +342,12 @@ static int mxr_s_fmt(struct file *file, void *priv,
+ 	geo->src.x_offset = 0;
+ 	geo->src.y_offset = 0;
+ 	/* assure consistency of geometry */
+-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
++	layer->ops->fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
+ 	mxr_geometry_dump(mdev, &layer->geo);
+ 	/* set full size to lowest possible value */
+ 	geo->src.full_width = 0;
+ 	geo->src.full_height = 0;
+-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
++	layer->ops->fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
+ 	mxr_geometry_dump(mdev, &layer->geo);
+ 
+ 	/* returning results */
+@@ -474,7 +474,7 @@ static int mxr_s_selection(struct file *file, void *fh,
+ 		target->width = s->r.width;
+ 		target->height = s->r.height;
+ 
+-		layer->ops.fix_geometry(layer, stage, s->flags);
++		layer->ops->fix_geometry(layer, stage, s->flags);
+ 
+ 		/* retrieve update selection rectangle */
+ 		res.left = target->x_offset;
+@@ -955,13 +955,13 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count)
+ 	mxr_output_get(mdev);
+ 
+ 	mxr_layer_update_output(layer);
+-	layer->ops.format_set(layer);
++	layer->ops->format_set(layer);
+ 	/* enabling layer in hardware */
+ 	spin_lock_irqsave(&layer->enq_slock, flags);
+ 	layer->state = MXR_LAYER_STREAMING;
+ 	spin_unlock_irqrestore(&layer->enq_slock, flags);
+ 
+-	layer->ops.stream_set(layer, MXR_ENABLE);
++	layer->ops->stream_set(layer, MXR_ENABLE);
+ 	mxr_streamer_get(mdev);
+ 
+ 	return 0;
+@@ -1031,7 +1031,7 @@ static int stop_streaming(struct vb2_queue *vq)
+ 	spin_unlock_irqrestore(&layer->enq_slock, flags);
+ 
+ 	/* disabling layer in hardware */
+-	layer->ops.stream_set(layer, MXR_DISABLE);
++	layer->ops->stream_set(layer, MXR_DISABLE);
+ 	/* remove one streamer */
+ 	mxr_streamer_put(mdev);
+ 	/* allow changes in output configuration */
+@@ -1070,8 +1070,8 @@ void mxr_base_layer_unregister(struct mxr_layer *layer)
+ 
+ void mxr_layer_release(struct mxr_layer *layer)
+ {
+-	if (layer->ops.release)
+-		layer->ops.release(layer);
++	if (layer->ops->release)
++		layer->ops->release(layer);
+ }
+ 
+ void mxr_base_layer_release(struct mxr_layer *layer)
+@@ -1097,7 +1097,7 @@ struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
+ 
+ 	layer->mdev = mdev;
+ 	layer->idx = idx;
+-	layer->ops = *ops;
++	layer->ops = ops;
+ 
+ 	spin_lock_init(&layer->enq_slock);
+ 	INIT_LIST_HEAD(&layer->enq_list);
+diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
+index c9388c4..ce71ece 100644
+--- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
++++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
+@@ -206,7 +206,7 @@ struct mxr_layer *mxr_vp_layer_create(struct mxr_device *mdev, int idx)
+ {
+ 	struct mxr_layer *layer;
+ 	int ret;
+-	struct mxr_layer_ops ops = {
++	static struct mxr_layer_ops ops = {
+ 		.release = mxr_vp_layer_release,
+ 		.buffer_set = mxr_vp_buffer_set,
+ 		.stream_set = mxr_vp_stream_set,
+diff --git a/drivers/media/platform/vivi.c b/drivers/media/platform/vivi.c
+index 2d4e73b..8b4d5b6 100644
+--- a/drivers/media/platform/vivi.c
++++ b/drivers/media/platform/vivi.c
+@@ -58,8 +58,8 @@ MODULE_AUTHOR("Mauro Carvalho Chehab, Ted Walther and John Sokol");
+ MODULE_LICENSE("Dual BSD/GPL");
+ MODULE_VERSION(VIVI_VERSION);
+ 
+-static unsigned video_nr = -1;
+-module_param(video_nr, uint, 0644);
++static int video_nr = -1;
++module_param(video_nr, int, 0644);
+ MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect");
+ 
+ static unsigned n_devs = 1;
+diff --git a/drivers/media/radio/radio-cadet.c b/drivers/media/radio/radio-cadet.c
+index 545c04c..a14bded 100644
+--- a/drivers/media/radio/radio-cadet.c
++++ b/drivers/media/radio/radio-cadet.c
+@@ -324,6 +324,8 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
+ 	unsigned char readbuf[RDS_BUFFER];
+ 	int i = 0;
+ 
++	if (count > RDS_BUFFER)
++		return -EFAULT;
+ 	mutex_lock(&dev->lock);
+ 	if (dev->rdsstat == 0)
+ 		cadet_start_rds(dev);
+@@ -339,7 +341,7 @@ static ssize_t cadet_read(struct file *file, char __user *data, size_t count, lo
+ 	while (i < count && dev->rdsin != dev->rdsout)
+ 		readbuf[i++] = dev->rdsbuf[dev->rdsout++];
+ 
+-	if (i && copy_to_user(data, readbuf, i))
++	if (i > sizeof(readbuf) || copy_to_user(data, readbuf, i))
+ 		i = -EFAULT;
+ unlock:
+ 	mutex_unlock(&dev->lock);
+diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
+index 5236035..c622c74 100644
+--- a/drivers/media/radio/radio-maxiradio.c
++++ b/drivers/media/radio/radio-maxiradio.c
+@@ -61,7 +61,7 @@ MODULE_PARM_DESC(radio_nr, "Radio device number");
+ /* TEA5757 pin mappings */
+ static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
+ 
+-static atomic_t maxiradio_instance = ATOMIC_INIT(0);
++static atomic_unchecked_t maxiradio_instance = ATOMIC_INIT(0);
+ 
+ #define PCI_VENDOR_ID_GUILLEMOT 0x5046
+ #define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
+diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
+index 050b3bb..79f62b9 100644
+--- a/drivers/media/radio/radio-shark.c
++++ b/drivers/media/radio/radio-shark.c
+@@ -79,7 +79,7 @@ struct shark_device {
+ 	u32 last_val;
+ };
+ 
+-static atomic_t shark_instance = ATOMIC_INIT(0);
++static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
+ 
+ static void shark_write_val(struct snd_tea575x *tea, u32 val)
+ {
+diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
+index 8654e0d..0608a64 100644
+--- a/drivers/media/radio/radio-shark2.c
++++ b/drivers/media/radio/radio-shark2.c
+@@ -74,7 +74,7 @@ struct shark_device {
+ 	u8 *transfer_buffer;
+ };
+ 
+-static atomic_t shark_instance = ATOMIC_INIT(0);
++static atomic_unchecked_t shark_instance = ATOMIC_INIT(0);
+ 
+ static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
+ {
+diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c
+index 2fd9009..278cc1e 100644
+--- a/drivers/media/radio/radio-si476x.c
++++ b/drivers/media/radio/radio-si476x.c
+@@ -1445,7 +1445,7 @@ static int si476x_radio_probe(struct platform_device *pdev)
+ 	struct si476x_radio *radio;
+ 	struct v4l2_ctrl *ctrl;
+ 
+-	static atomic_t instance = ATOMIC_INIT(0);
++	static atomic_unchecked_t instance = ATOMIC_INIT(0);
+ 
+ 	radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
+ 	if (!radio)
+diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
+index 4b2e9e8..c2900d99 100644
+--- a/drivers/media/radio/wl128x/fmdrv_common.c
++++ b/drivers/media/radio/wl128x/fmdrv_common.c
+@@ -71,7 +71,7 @@ module_param(default_rds_buf, uint, 0444);
+ MODULE_PARM_DESC(rds_buf, "RDS buffer entries");
+ 
+ /* Radio Nr */
+-static u32 radio_nr = -1;
++static int radio_nr = -1;
+ module_param(radio_nr, int, 0444);
+ MODULE_PARM_DESC(radio_nr, "Radio Nr");
+ 
+diff --git a/drivers/media/usb/dvb-usb/cinergyT2-core.c b/drivers/media/usb/dvb-usb/cinergyT2-core.c
+index 9fd1527..8927230 100644
+--- a/drivers/media/usb/dvb-usb/cinergyT2-core.c
++++ b/drivers/media/usb/dvb-usb/cinergyT2-core.c
+@@ -50,29 +50,73 @@ static struct dvb_usb_device_properties cinergyt2_properties;
+ 
+ static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
+ {
+-	char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
+-	char result[64];
+-	return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
+-				sizeof(result), 0);
++	char *buf;
++	char *result;
++	int retval;
++
++	buf = kmalloc(2, GFP_KERNEL);
++	if (buf == NULL)
++		return -ENOMEM;
++	result = kmalloc(64, GFP_KERNEL);
++	if (result == NULL) {
++		kfree(buf);
++		return -ENOMEM;
++	}
++
++	buf[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
++	buf[1] = enable ? 1 : 0;
++
++	retval = dvb_usb_generic_rw(adap->dev, buf, 2, result, 64, 0);
++
++	kfree(buf);
++	kfree(result);
++	return retval;
+ }
+ 
+ static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
+ {
+-	char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
+-	char state[3];
+-	return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
++	char *buf;
++	char *state;
++	int retval;
++
++	buf = kmalloc(2, GFP_KERNEL);
++	if (buf == NULL)
++		return -ENOMEM;
++	state = kmalloc(3, GFP_KERNEL);
++	if (state == NULL) {
++		kfree(buf);
++		return -ENOMEM;
++	}
++
++	buf[0] = CINERGYT2_EP1_SLEEP_MODE;
++	buf[1] = enable ? 1 : 0;
++
++	retval = dvb_usb_generic_rw(d, buf, 2, state, 3, 0);
++
++	kfree(buf);
++	kfree(state);
++	return retval;
+ }
+ 
+ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
+ {
+-	char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
+-	char state[3];
++	char *query;
++	char *state;
+ 	int ret;
++	query = kmalloc(1, GFP_KERNEL);
++	if (query == NULL)
++		return -ENOMEM;
++	state = kmalloc(3, GFP_KERNEL);
++	if (state == NULL) {
++		kfree(query);
++		return -ENOMEM;
++	}
++
++	query[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
+ 
+ 	adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
+ 
+-	ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
+-				sizeof(state), 0);
++	ret = dvb_usb_generic_rw(adap->dev, query, 1, state, 3, 0);
+ 	if (ret < 0) {
+ 		deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
+ 			"state info\n");
+@@ -80,7 +124,8 @@ static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
+ 
+ 	/* Copy this pointer as we are gonna need it in the release phase */
+ 	cinergyt2_usb_device = adap->dev;
+-
++	kfree(query);
++	kfree(state);
+ 	return 0;
+ }
+ 
+@@ -141,12 +186,23 @@ static int repeatable_keys[] = {
+ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+ {
+ 	struct cinergyt2_state *st = d->priv;
+-	u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
++	u8 *key, *cmd;
+ 	int i;
+ 
++	cmd = kmalloc(1, GFP_KERNEL);
++	if (cmd == NULL)
++		return -EINVAL;
++	key = kzalloc(5, GFP_KERNEL);
++	if (key == NULL) {
++		kfree(cmd);
++		return -EINVAL;
++	}
++
++	cmd[0] = CINERGYT2_EP1_GET_RC_EVENTS;
++
+ 	*state = REMOTE_NO_KEY_PRESSED;
+ 
+-	dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
++	dvb_usb_generic_rw(d, cmd, 1, key, 5, 0);
+ 	if (key[4] == 0xff) {
+ 		/* key repeat */
+ 		st->rc_counter++;
+@@ -157,12 +213,12 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+ 					*event = d->last_event;
+ 					deb_rc("repeat key, event %x\n",
+ 						   *event);
+-					return 0;
++					goto out;
+ 				}
+ 			}
+ 			deb_rc("repeated key (non repeatable)\n");
+ 		}
+-		return 0;
++		goto out;
+ 	}
+ 
+ 	/* hack to pass checksum on the custom field */
+@@ -174,6 +230,9 @@ static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+ 
+ 		deb_rc("key: %*ph\n", 5, key);
+ 	}
++out:
++	kfree(cmd);
++	kfree(key);
+ 	return 0;
+ }
+ 
+diff --git a/drivers/media/usb/dvb-usb/cinergyT2-fe.c b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
+index c890fe4..f9b2ae6 100644
+--- a/drivers/media/usb/dvb-usb/cinergyT2-fe.c
++++ b/drivers/media/usb/dvb-usb/cinergyT2-fe.c
+@@ -145,103 +145,176 @@ static int cinergyt2_fe_read_status(struct dvb_frontend *fe,
+ 					fe_status_t *status)
+ {
+ 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
+-	struct dvbt_get_status_msg result;
+-	u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
++	struct dvbt_get_status_msg *result;
++	u8 *cmd;
+ 	int ret;
+ 
+-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&result,
+-			sizeof(result), 0);
++	cmd = kmalloc(1, GFP_KERNEL);
++	if (cmd == NULL)
++		return -ENOMEM;
++	result = kmalloc(sizeof(*result), GFP_KERNEL);
++	if (result == NULL) {
++		kfree(cmd);
++		return -ENOMEM;
++	}
++
++	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
++
++	ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)result,
++			sizeof(*result), 0);
+ 	if (ret < 0)
+-		return ret;
++		goto out;
+ 
+ 	*status = 0;
+ 
+-	if (0xffff - le16_to_cpu(result.gain) > 30)
++	if (0xffff - le16_to_cpu(result->gain) > 30)
+ 		*status |= FE_HAS_SIGNAL;
+-	if (result.lock_bits & (1 << 6))
++	if (result->lock_bits & (1 << 6))
+ 		*status |= FE_HAS_LOCK;
+-	if (result.lock_bits & (1 << 5))
++	if (result->lock_bits & (1 << 5))
+ 		*status |= FE_HAS_SYNC;
+-	if (result.lock_bits & (1 << 4))
++	if (result->lock_bits & (1 << 4))
+ 		*status |= FE_HAS_CARRIER;
+-	if (result.lock_bits & (1 << 1))
++	if (result->lock_bits & (1 << 1))
+ 		*status |= FE_HAS_VITERBI;
+ 
+ 	if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
+ 			(FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
+ 		*status &= ~FE_HAS_LOCK;
+ 
+-	return 0;
++out:
++	kfree(cmd);
++	kfree(result);
++	return ret;
+ }
+ 
+ static int cinergyt2_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
+ {
+ 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
+-	struct dvbt_get_status_msg status;
+-	char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
++	struct dvbt_get_status_msg *status;
++	char *cmd;
+ 	int ret;
+ 
+-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
+-				sizeof(status), 0);
++	cmd = kmalloc(1, GFP_KERNEL);
++	if (cmd == NULL)
++		return -ENOMEM;
++	status = kmalloc(sizeof(*status), GFP_KERNEL);
++	if (status == NULL) {
++		kfree(cmd);
++		return -ENOMEM;
++	}
++
++	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
++
++	ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
++				sizeof(*status), 0);
+ 	if (ret < 0)
+-		return ret;
++		goto out;
+ 
+-	*ber = le32_to_cpu(status.viterbi_error_rate);
++	*ber = le32_to_cpu(status->viterbi_error_rate);
++out:
++	kfree(cmd);
++	kfree(status);
+ 	return 0;
+ }
+ 
+ static int cinergyt2_fe_read_unc_blocks(struct dvb_frontend *fe, u32 *unc)
+ {
+ 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
+-	struct dvbt_get_status_msg status;
+-	u8 cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
++	struct dvbt_get_status_msg *status;
++	u8 *cmd;
+ 	int ret;
+ 
+-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (u8 *)&status,
+-				sizeof(status), 0);
++	cmd = kmalloc(1, GFP_KERNEL);
++	if (cmd == NULL)
++		return -ENOMEM;
++	status = kmalloc(sizeof(*status), GFP_KERNEL);
++	if (status == NULL) {
++		kfree(cmd);
++		return -ENOMEM;
++	}
++
++	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
++
++	ret = dvb_usb_generic_rw(state->d, cmd, 1, (u8 *)status,
++				sizeof(*status), 0);
+ 	if (ret < 0) {
+ 		err("cinergyt2_fe_read_unc_blocks() Failed! (Error=%d)\n",
+ 			ret);
+-		return ret;
++		goto out;
+ 	}
+-	*unc = le32_to_cpu(status.uncorrected_block_count);
+-	return 0;
++	*unc = le32_to_cpu(status->uncorrected_block_count);
++
++out:
++	kfree(cmd);
++	kfree(status);
++	return ret;
+ }
+ 
+ static int cinergyt2_fe_read_signal_strength(struct dvb_frontend *fe,
+ 						u16 *strength)
+ {
+ 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
+-	struct dvbt_get_status_msg status;
+-	char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
++	struct dvbt_get_status_msg *status;
++	char *cmd;
+ 	int ret;
+ 
+-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
+-				sizeof(status), 0);
++	cmd = kmalloc(1, GFP_KERNEL);
++	if (cmd == NULL)
++		return -ENOMEM;
++	status = kmalloc(sizeof(*status), GFP_KERNEL);
++	if (status == NULL) {
++		kfree(cmd);
++		return -ENOMEM;
++	}
++
++	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
++
++	ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
++				sizeof(*status), 0);
+ 	if (ret < 0) {
+ 		err("cinergyt2_fe_read_signal_strength() Failed!"
+ 			" (Error=%d)\n", ret);
+-		return ret;
++		goto out;
+ 	}
+-	*strength = (0xffff - le16_to_cpu(status.gain));
++	*strength = (0xffff - le16_to_cpu(status->gain));
++
++out:
++	kfree(cmd);
++	kfree(status);
+ 	return 0;
+ }
+ 
+ static int cinergyt2_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
+ {
+ 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
+-	struct dvbt_get_status_msg status;
+-	char cmd[] = { CINERGYT2_EP1_GET_TUNER_STATUS };
++	struct dvbt_get_status_msg *status;
++	char *cmd;
+ 	int ret;
+ 
+-	ret = dvb_usb_generic_rw(state->d, cmd, sizeof(cmd), (char *)&status,
+-				sizeof(status), 0);
++	cmd = kmalloc(1, GFP_KERNEL);
++	if (cmd == NULL)
++		return -ENOMEM;
++	status = kmalloc(sizeof(*status), GFP_KERNEL);
++	if (status == NULL) {
++		kfree(cmd);
++		return -ENOMEM;
++	}
++
++	cmd[0] = CINERGYT2_EP1_GET_TUNER_STATUS;
++
++	ret = dvb_usb_generic_rw(state->d, cmd, 1, (char *)status,
++				sizeof(*status), 0);
+ 	if (ret < 0) {
+ 		err("cinergyt2_fe_read_snr() Failed! (Error=%d)\n", ret);
+-		return ret;
++		goto out;
+ 	}
+-	*snr = (status.snr << 8) | status.snr;
+-	return 0;
++	*snr = (status->snr << 8) | status->snr;
++
++out:
++	kfree(cmd);
++	kfree(status);
++	return ret;
+ }
+ 
+ static int cinergyt2_fe_init(struct dvb_frontend *fe)
+@@ -266,35 +339,46 @@ static int cinergyt2_fe_set_frontend(struct dvb_frontend *fe)
+ {
+ 	struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
+ 	struct cinergyt2_fe_state *state = fe->demodulator_priv;
+-	struct dvbt_set_parameters_msg param;
+-	char result[2];
++	struct dvbt_set_parameters_msg *param;
++	char *result;
+ 	int err;
+ 
+-	param.cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
+-	param.tps = cpu_to_le16(compute_tps(fep));
+-	param.freq = cpu_to_le32(fep->frequency / 1000);
+-	param.flags = 0;
++	result = kmalloc(2, GFP_KERNEL);
++	if (result == NULL)
++		return -ENOMEM;
++	param = kmalloc(sizeof(*param), GFP_KERNEL);
++	if (param == NULL) {
++		kfree(result);
++		return -ENOMEM;
++	}
++
++	param->cmd = CINERGYT2_EP1_SET_TUNER_PARAMETERS;
++	param->tps = cpu_to_le16(compute_tps(fep));
++	param->freq = cpu_to_le32(fep->frequency / 1000);
++	param->flags = 0;
+ 
+ 	switch (fep->bandwidth_hz) {
+ 	default:
+ 	case 8000000:
+-		param.bandwidth = 8;
++		param->bandwidth = 8;
+ 		break;
+ 	case 7000000:
+-		param.bandwidth = 7;
++		param->bandwidth = 7;
+ 		break;
+ 	case 6000000:
+-		param.bandwidth = 6;
++		param->bandwidth = 6;
+ 		break;
+ 	}
+ 
+ 	err = dvb_usb_generic_rw(state->d,
+-			(char *)&param, sizeof(param),
+-			result, sizeof(result), 0);
++			(char *)param, sizeof(*param),
++			result, 2, 0);
+ 	if (err < 0)
+ 		err("cinergyt2_fe_set_frontend() Failed! err=%d\n", err);
+ 
+-	return (err < 0) ? err : 0;
++	kfree(result);
++	kfree(param);
++	return err;
+ }
+ 
+ static void cinergyt2_fe_release(struct dvb_frontend *fe)
+diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
+index a1c641e..3007da9 100644
+--- a/drivers/media/usb/dvb-usb/cxusb.c
++++ b/drivers/media/usb/dvb-usb/cxusb.c
+@@ -1112,7 +1112,7 @@ static struct dib0070_config dib7070p_dib0070_config = {
+ 
+ struct dib0700_adapter_state {
+ 	int (*set_param_save) (struct dvb_frontend *);
+-};
++} __no_const;
+ 
+ static int dib7070_set_param_override(struct dvb_frontend *fe)
+ {
+diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
+index 733a7ff..f8b52e3 100644
+--- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
++++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
+@@ -35,42 +35,57 @@ static int usb_cypress_writemem(struct usb_device *udev,u16 addr,u8 *data, u8 le
+ 
+ int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
+ {
+-	struct hexline hx;
+-	u8 reset;
++	struct hexline *hx;
++	u8 *reset;
+ 	int ret,pos=0;
+ 
++	reset = kmalloc(1, GFP_KERNEL);
++	if (reset == NULL)
++		return -ENOMEM;
++
++	hx = kmalloc(sizeof(struct hexline), GFP_KERNEL);
++	if (hx == NULL) {
++		kfree(reset);
++		return -ENOMEM;
++	}
++
+ 	/* stop the CPU */
+-	reset = 1;
+-	if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
++	reset[0] = 1;
++	if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1)) != 1)
+ 		err("could not stop the USB controller CPU.");
+ 
+-	while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
+-		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
+-		ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
++	while ((ret = dvb_usb_get_hexline(fw,hx,&pos)) > 0) {
++		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx->addr,hx->len,hx->chk);
++		ret = usb_cypress_writemem(udev,hx->addr,hx->data,hx->len);
+ 
+-		if (ret != hx.len) {
++		if (ret != hx->len) {
+ 			err("error while transferring firmware "
+ 				"(transferred size: %d, block size: %d)",
+-				ret,hx.len);
++				ret,hx->len);
+ 			ret = -EINVAL;
+ 			break;
+ 		}
+ 	}
+ 	if (ret < 0) {
+ 		err("firmware download failed at %d with %d",pos,ret);
++		kfree(reset);
++		kfree(hx);
+ 		return ret;
+ 	}
+ 
+ 	if (ret == 0) {
+ 		/* restart the CPU */
+-		reset = 0;
+-		if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
++		reset[0] = 0;
++		if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,reset,1) != 1) {
+ 			err("could not restart the USB controller CPU.");
+ 			ret = -EINVAL;
+ 		}
+ 	} else
+ 		ret = -EIO;
+ 
++	kfree(reset);
++	kfree(hx);
++
+ 	return ret;
+ }
+ EXPORT_SYMBOL(usb_cypress_load_firmware);
+diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
+index ae0f56a..ec71784 100644
+--- a/drivers/media/usb/dvb-usb/dw2102.c
++++ b/drivers/media/usb/dvb-usb/dw2102.c
+@@ -118,7 +118,7 @@ struct su3000_state {
+ 
+ struct s6x0_state {
+ 	int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v);
+-};
++} __no_const;
+ 
+ /* debug */
+ static int dvb_usb_dw2102_debug;
+diff --git a/drivers/media/usb/dvb-usb/technisat-usb2.c b/drivers/media/usb/dvb-usb/technisat-usb2.c
+index 98d24ae..bc22415 100644
+--- a/drivers/media/usb/dvb-usb/technisat-usb2.c
++++ b/drivers/media/usb/dvb-usb/technisat-usb2.c
+@@ -87,8 +87,11 @@ struct technisat_usb2_state {
+ static int technisat_usb2_i2c_access(struct usb_device *udev,
+ 		u8 device_addr, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
+ {
+-	u8 b[64];
+-	int ret, actual_length;
++	u8 *b = kmalloc(64, GFP_KERNEL);
++	int ret, actual_length, error = 0;
++
++	if (b == NULL)
++		return -ENOMEM;
+ 
+ 	deb_i2c("i2c-access: %02x, tx: ", device_addr);
+ 	debug_dump(tx, txlen, deb_i2c);
+@@ -121,7 +124,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
+ 
+ 	if (ret < 0) {
+ 		err("i2c-error: out failed %02x = %d", device_addr, ret);
+-		return -ENODEV;
++		error = -ENODEV;
++		goto out;
+ 	}
+ 
+ 	ret = usb_bulk_msg(udev,
+@@ -129,7 +133,8 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
+ 			b, 64, &actual_length, 1000);
+ 	if (ret < 0) {
+ 		err("i2c-error: in failed %02x = %d", device_addr, ret);
+-		return -ENODEV;
++		error = -ENODEV;
++		goto out;
+ 	}
+ 
+ 	if (b[0] != I2C_STATUS_OK) {
+@@ -137,8 +142,10 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
+ 		/* handle tuner-i2c-nak */
+ 		if (!(b[0] == I2C_STATUS_NAK &&
+ 				device_addr == 0x60
+-				/* && device_is_technisat_usb2 */))
+-			return -ENODEV;
++				/* && device_is_technisat_usb2 */)) {
++			error = -ENODEV;
++			goto out;
++		}
+ 	}
+ 
+ 	deb_i2c("status: %d, ", b[0]);
+@@ -152,7 +159,9 @@ static int technisat_usb2_i2c_access(struct usb_device *udev,
+ 
+ 	deb_i2c("\n");
+ 
+-	return 0;
++out:
++	kfree(b);
++	return error;
+ }
+ 
+ static int technisat_usb2_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
+@@ -224,14 +233,16 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
+ {
+ 	int ret;
+ 
+-	u8 led[8] = {
+-		red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
+-		0
+-	};
++	u8 *led = kzalloc(8, GFP_KERNEL);
++
++	if (led == NULL)
++		return -ENOMEM;
+ 
+ 	if (disable_led_control && state != LED_OFF)
+ 		return 0;
+ 
++	led[0] = red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST;
++
+ 	switch (state) {
+ 	case LED_ON:
+ 		led[1] = 0x82;
+@@ -263,16 +274,22 @@ static int technisat_usb2_set_led(struct dvb_usb_device *d, int red, enum techni
+ 		red ? SET_RED_LED_VENDOR_REQUEST : SET_GREEN_LED_VENDOR_REQUEST,
+ 		USB_TYPE_VENDOR | USB_DIR_OUT,
+ 		0, 0,
+-		led, sizeof(led), 500);
++		led, 8, 500);
+ 
+ 	mutex_unlock(&d->i2c_mutex);
++
++	kfree(led);
++
+ 	return ret;
+ }
+ 
+ static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 green)
+ {
+ 	int ret;
+-	u8 b = 0;
++	u8 *b = kzalloc(1, GFP_KERNEL);
++
++	if (b == NULL)
++		return -ENOMEM;
+ 
+ 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+ 		return -EAGAIN;
+@@ -281,10 +298,12 @@ static int technisat_usb2_set_led_timer(struct dvb_usb_device *d, u8 red, u8 gre
+ 		SET_LED_TIMER_DIVIDER_VENDOR_REQUEST,
+ 		USB_TYPE_VENDOR | USB_DIR_OUT,
+ 		(red << 8) | green, 0,
+-		&b, 1, 500);
++		b, 1, 500);
+ 
+ 	mutex_unlock(&d->i2c_mutex);
+ 
++	kfree(b);
++
+ 	return ret;
+ }
+ 
+@@ -328,7 +347,7 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
+ 		struct dvb_usb_device_description **desc, int *cold)
+ {
+ 	int ret;
+-	u8 version[3];
++	u8 *version = kmalloc(3, GFP_KERNEL);
+ 
+ 	/* first select the interface */
+ 	if (usb_set_interface(udev, 0, 1) != 0)
+@@ -338,11 +357,14 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
+ 
+ 	*cold = 0; /* by default do not download a firmware - just in case something is wrong */
+ 
++	if (version == NULL)
++		return 0;
++
+ 	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ 		GET_VERSION_INFO_VENDOR_REQUEST,
+ 		USB_TYPE_VENDOR | USB_DIR_IN,
+ 		0, 0,
+-		version, sizeof(version), 500);
++		version, 3, 500);
+ 
+ 	if (ret < 0)
+ 		*cold = 1;
+@@ -351,6 +373,8 @@ static int technisat_usb2_identify_state(struct usb_device *udev,
+ 		*cold = 0;
+ 	}
+ 
++	kfree(version);
++
+ 	return 0;
+ }
+ 
+@@ -591,10 +615,15 @@ static int technisat_usb2_frontend_attach(struct dvb_usb_adapter *a)
+ 
+ static int technisat_usb2_get_ir(struct dvb_usb_device *d)
+ {
+-	u8 buf[62], *b;
++	u8 *buf, *b;
+ 	int ret;
+ 	struct ir_raw_event ev;
+ 
++	buf = kmalloc(62, GFP_KERNEL);
++
++	if (buf == NULL)
++		return -ENOMEM;
++
+ 	buf[0] = GET_IR_DATA_VENDOR_REQUEST;
+ 	buf[1] = 0x08;
+ 	buf[2] = 0x8f;
+@@ -617,16 +646,20 @@ static int technisat_usb2_get_ir(struct dvb_usb_device *d)
+ 			GET_IR_DATA_VENDOR_REQUEST,
+ 			USB_TYPE_VENDOR | USB_DIR_IN,
+ 			0x8080, 0,
+-			buf, sizeof(buf), 500);
++			buf, 62, 500);
+ 
+ unlock:
+ 	mutex_unlock(&d->i2c_mutex);
+ 
+-	if (ret < 0)
++	if (ret < 0) {
++		kfree(buf);
+ 		return ret;
++	}
+ 
+-	if (ret == 1)
++	if (ret == 1) {
++		kfree(buf);
+ 		return 0; /* no key pressed */
++	}
+ 
+ 	/* decoding */
+ 	b = buf+1;
+@@ -653,6 +686,8 @@ unlock:
+ 
+ 	ir_raw_event_handle(d->rc_dev);
+ 
++	kfree(buf);
++
+ 	return 1;
+ }
+ 
+diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+index fca336b..fb70ab7 100644
+--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
++++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+@@ -328,7 +328,7 @@ struct v4l2_buffer32 {
+ 	__u32			reserved;
+ };
+ 
+-static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
++static int get_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
+ 				enum v4l2_memory memory)
+ {
+ 	void __user *up_pln;
+@@ -357,7 +357,7 @@ static int get_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
+ 	return 0;
+ }
+ 
+-static int put_v4l2_plane32(struct v4l2_plane *up, struct v4l2_plane32 *up32,
++static int put_v4l2_plane32(struct v4l2_plane __user *up, struct v4l2_plane32 __user *up32,
+ 				enum v4l2_memory memory)
+ {
+ 	if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
+@@ -427,7 +427,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
+ 		 * by passing a very big num_planes value */
+ 		uplane = compat_alloc_user_space(num_planes *
+ 						sizeof(struct v4l2_plane));
+-		kp->m.planes = uplane;
++		kp->m.planes = (struct v4l2_plane __force_kernel *)uplane;
+ 
+ 		while (--num_planes >= 0) {
+ 			ret = get_v4l2_plane32(uplane, uplane32, kp->memory);
+@@ -498,7 +498,7 @@ static int put_v4l2_buffer32(struct v4l2_buffer *kp, struct v4l2_buffer32 __user
+ 		if (num_planes == 0)
+ 			return 0;
+ 
+-		uplane = kp->m.planes;
++		uplane = (struct v4l2_plane __force_user *)kp->m.planes;
+ 		if (get_user(p, &up->m.planes))
+ 			return -EFAULT;
+ 		uplane32 = compat_ptr(p);
+@@ -552,7 +552,7 @@ static int get_v4l2_framebuffer32(struct v4l2_framebuffer *kp, struct v4l2_frame
+ 		get_user(kp->capability, &up->capability) ||
+ 		get_user(kp->flags, &up->flags))
+ 			return -EFAULT;
+-	kp->base = compat_ptr(tmp);
++	kp->base = (void __force_kernel *)compat_ptr(tmp);
+ 	get_v4l2_pix_format(&kp->fmt, &up->fmt);
+ 	return 0;
+ }
+@@ -658,7 +658,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
+ 			n * sizeof(struct v4l2_ext_control32)))
+ 		return -EFAULT;
+ 	kcontrols = compat_alloc_user_space(n * sizeof(struct v4l2_ext_control));
+-	kp->controls = kcontrols;
++	kp->controls = (struct v4l2_ext_control __force_kernel *)kcontrols;
+ 	while (--n >= 0) {
+ 		if (copy_in_user(kcontrols, ucontrols, sizeof(*ucontrols)))
+ 			return -EFAULT;
+@@ -680,7 +680,7 @@ static int get_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext
+ static int put_v4l2_ext_controls32(struct v4l2_ext_controls *kp, struct v4l2_ext_controls32 __user *up)
+ {
+ 	struct v4l2_ext_control32 __user *ucontrols;
+-	struct v4l2_ext_control __user *kcontrols = kp->controls;
++	struct v4l2_ext_control __user *kcontrols = (struct v4l2_ext_control __force_user *)kp->controls;
+ 	int n = kp->count;
+ 	compat_caddr_t p;
+ 
+@@ -774,7 +774,7 @@ static int put_v4l2_subdev_edid32(struct v4l2_subdev_edid *kp, struct v4l2_subde
+ 		put_user(kp->start_block, &up->start_block) ||
+ 		put_user(kp->blocks, &up->blocks) ||
+ 		put_user(tmp, &up->edid) ||
+-		copy_to_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
++		copy_to_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
+ 			return -EFAULT;
+ 	return 0;
+ }
+diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
+index 6ff002b..6b9316b 100644
+--- a/drivers/media/v4l2-core/v4l2-ctrls.c
++++ b/drivers/media/v4l2-core/v4l2-ctrls.c
+@@ -1401,8 +1401,8 @@ static int validate_new(const struct v4l2_ctrl *ctrl,
+ 		return 0;
+ 
+ 	case V4L2_CTRL_TYPE_STRING:
+-		len = strlen(c->string);
+-		if (len < ctrl->minimum)
++		len = strlen_user(c->string);
++		if (!len || len < ctrl->minimum)
+ 			return -ERANGE;
+ 		if ((len - ctrl->minimum) % ctrl->step)
+ 			return -ERANGE;
+diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
+index 02d1b63..5fd6b16 100644
+--- a/drivers/media/v4l2-core/v4l2-device.c
++++ b/drivers/media/v4l2-core/v4l2-device.c
+@@ -75,9 +75,9 @@ int v4l2_device_put(struct v4l2_device *v4l2_dev)
+ EXPORT_SYMBOL_GPL(v4l2_device_put);
+ 
+ int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
+-						atomic_t *instance)
++						atomic_unchecked_t *instance)
+ {
+-	int num = atomic_inc_return(instance) - 1;
++	int num = atomic_inc_return_unchecked(instance) - 1;
+ 	int len = strlen(basename);
+ 
+ 	if (basename[len - 1] >= '0' && basename[len - 1] <= '9')
+diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
+index 707aef7..93b8ac0 100644
+--- a/drivers/media/v4l2-core/v4l2-ioctl.c
++++ b/drivers/media/v4l2-core/v4l2-ioctl.c
+@@ -1942,7 +1942,8 @@ struct v4l2_ioctl_info {
+ 				struct file *file, void *fh, void *p);
+ 	} u;
+ 	void (*debug)(const void *arg, bool write_only);
+-};
++} __do_const;
++typedef struct v4l2_ioctl_info __no_const v4l2_ioctl_info_no_const;
+ 
+ /* This control needs a priority check */
+ #define INFO_FL_PRIO	(1 << 0)
+@@ -2123,7 +2124,7 @@ static long __video_do_ioctl(struct file *file,
+ 	struct video_device *vfd = video_devdata(file);
+ 	const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
+ 	bool write_only = false;
+-	struct v4l2_ioctl_info default_info;
++	v4l2_ioctl_info_no_const default_info;
+ 	const struct v4l2_ioctl_info *info;
+ 	void *fh = file->private_data;
+ 	struct v4l2_fh *vfh = NULL;
+@@ -2197,7 +2198,7 @@ done:
+ }
+ 
+ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
+-			    void * __user *user_ptr, void ***kernel_ptr)
++			    void __user **user_ptr, void ***kernel_ptr)
+ {
+ 	int ret = 0;
+ 
+@@ -2213,7 +2214,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
+ 				ret = -EINVAL;
+ 				break;
+ 			}
+-			*user_ptr = (void __user *)buf->m.planes;
++			*user_ptr = (void __force_user *)buf->m.planes;
+ 			*kernel_ptr = (void *)&buf->m.planes;
+ 			*array_size = sizeof(struct v4l2_plane) * buf->length;
+ 			ret = 1;
+@@ -2248,7 +2249,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
+ 				ret = -EINVAL;
+ 				break;
+ 			}
+-			*user_ptr = (void __user *)ctrls->controls;
++			*user_ptr = (void __force_user *)ctrls->controls;
+ 			*kernel_ptr = (void *)&ctrls->controls;
+ 			*array_size = sizeof(struct v4l2_ext_control)
+ 				    * ctrls->count;
+@@ -2349,7 +2350,7 @@ video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
+ 	}
+ 
+ 	if (has_array_args) {
+-		*kernel_ptr = user_ptr;
++		*kernel_ptr = (void __force_kernel *)user_ptr;
+ 		if (copy_to_user(user_ptr, mbuf, array_size))
+ 			err = -EFAULT;
+ 		goto out_array_args;
+diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
+index 570b18a..f880314 100644
+--- a/drivers/message/fusion/mptbase.c
++++ b/drivers/message/fusion/mptbase.c
+@@ -6755,8 +6755,13 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
+ 	seq_printf(m, "  MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth);
+ 	seq_printf(m, "  MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize);
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	seq_printf(m, "  RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL);
++#else
+ 	seq_printf(m, "  RequestFrames @ 0x%p (Dma @ 0x%p)\n",
+ 					(void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma);
++#endif
++
+ 	/*
+ 	 *  Rounding UP to nearest 4-kB boundary here...
+ 	 */
+@@ -6769,7 +6774,11 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v)
+ 					ioc->facts.GlobalCredits);
+ 
+ 	seq_printf(m, "  Frames   @ 0x%p (Dma @ 0x%p)\n",
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++					NULL, NULL);
++#else
+ 					(void *)ioc->alloc, (void *)(ulong)ioc->alloc_dma);
++#endif
+ 	sz = (ioc->reply_sz * ioc->reply_depth) + 128;
+ 	seq_printf(m, "    {CurRepSz=%d} x {CurRepDepth=%d} = %d bytes ^= 0x%x\n",
+ 					ioc->reply_sz, ioc->reply_depth, ioc->reply_sz*ioc->reply_depth, sz);
+diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
+index 00d339c..2ea899d 100644
+--- a/drivers/message/fusion/mptsas.c
++++ b/drivers/message/fusion/mptsas.c
+@@ -446,6 +446,23 @@ mptsas_is_end_device(struct mptsas_devinfo * attached)
+ 		return 0;
+ }
+ 
++static inline void
++mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
++{
++	if (phy_info->port_details) {
++		phy_info->port_details->rphy = rphy;
++		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
++		    ioc->name, rphy));
++	}
++
++	if (rphy) {
++		dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
++		    &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
++		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
++		    ioc->name, rphy, rphy->dev.release));
++	}
++}
++
+ /* no mutex */
+ static void
+ mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details)
+@@ -484,23 +501,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *phy_info)
+ 		return NULL;
+ }
+ 
+-static inline void
+-mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy)
+-{
+-	if (phy_info->port_details) {
+-		phy_info->port_details->rphy = rphy;
+-		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n",
+-		    ioc->name, rphy));
+-	}
+-
+-	if (rphy) {
+-		dsaswideprintk(ioc, dev_printk(KERN_DEBUG,
+-		    &rphy->dev, MYIOC_s_FMT "add:", ioc->name));
+-		dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n",
+-		    ioc->name, rphy, rphy->dev.release));
+-	}
+-}
+-
+ static inline struct sas_port *
+ mptsas_get_port(struct mptsas_phyinfo *phy_info)
+ {
+diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
+index 727819c..ad74694 100644
+--- a/drivers/message/fusion/mptscsih.c
++++ b/drivers/message/fusion/mptscsih.c
+@@ -1271,15 +1271,16 @@ mptscsih_info(struct Scsi_Host *SChost)
+ 
+ 	h = shost_priv(SChost);
+ 
+-	if (h) {
+-		if (h->info_kbuf == NULL)
+-			if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
+-				return h->info_kbuf;
+-		h->info_kbuf[0] = '\0';
++	if (!h)
++		return NULL;
+ 
+-		mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
+-		h->info_kbuf[size-1] = '\0';
+-	}
++	if (h->info_kbuf == NULL)
++		if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL)
++			return h->info_kbuf;
++	h->info_kbuf[0] = '\0';
++
++	mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0);
++	h->info_kbuf[size-1] = '\0';
+ 
+ 	return h->info_kbuf;
+ }
+diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
+index b7d87cd..3fb36da 100644
+--- a/drivers/message/i2o/i2o_proc.c
++++ b/drivers/message/i2o/i2o_proc.c
+@@ -255,12 +255,6 @@ static char *scsi_devices[] = {
+ 	"Array Controller Device"
+ };
+ 
+-static char *chtostr(char *tmp, u8 *chars, int n)
+-{
+-	tmp[0] = 0;
+-	return strncat(tmp, (char *)chars, n);
+-}
+-
+ static int i2o_report_query_status(struct seq_file *seq, int block_status,
+ 				   char *group)
+ {
+@@ -707,9 +701,9 @@ static int i2o_seq_show_status(struct seq_file *seq, void *v)
+ static int i2o_seq_show_hw(struct seq_file *seq, void *v)
+ {
+ 	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+-	static u32 work32[5];
+-	static u8 *work8 = (u8 *) work32;
+-	static u16 *work16 = (u16 *) work32;
++	u32 work32[5];
++	u8 *work8 = (u8 *) work32;
++	u16 *work16 = (u16 *) work32;
+ 	int token;
+ 	u32 hwcap;
+ 
+@@ -790,7 +784,6 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
+ 	} *result;
+ 
+ 	i2o_exec_execute_ddm_table ddm_table;
+-	char tmp[28 + 1];
+ 
+ 	result = kmalloc(sizeof(*result), GFP_KERNEL);
+ 	if (!result)
+@@ -825,8 +818,7 @@ static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
+ 
+ 		seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
+ 		seq_printf(seq, "%-#8x", ddm_table.module_id);
+-		seq_printf(seq, "%-29s",
+-			   chtostr(tmp, ddm_table.module_name_version, 28));
++		seq_printf(seq, "%-.28s", ddm_table.module_name_version);
+ 		seq_printf(seq, "%9d  ", ddm_table.data_size);
+ 		seq_printf(seq, "%8d", ddm_table.code_size);
+ 
+@@ -893,7 +885,6 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
+ 
+ 	i2o_driver_result_table *result;
+ 	i2o_driver_store_table *dst;
+-	char tmp[28 + 1];
+ 
+ 	result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
+ 	if (result == NULL)
+@@ -928,9 +919,8 @@ static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
+ 
+ 		seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
+ 		seq_printf(seq, "%-#8x", dst->module_id);
+-		seq_printf(seq, "%-29s",
+-			   chtostr(tmp, dst->module_name_version, 28));
+-		seq_printf(seq, "%-9s", chtostr(tmp, dst->date, 8));
++		seq_printf(seq, "%-.28s", dst->module_name_version);
++		seq_printf(seq, "%-.8s", dst->date);
+ 		seq_printf(seq, "%8d ", dst->module_size);
+ 		seq_printf(seq, "%8d ", dst->mpb_size);
+ 		seq_printf(seq, "0x%04x", dst->module_flags);
+@@ -1246,11 +1236,10 @@ static int i2o_seq_show_authorized_users(struct seq_file *seq, void *v)
+ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
+ {
+ 	struct i2o_device *d = (struct i2o_device *)seq->private;
+-	static u32 work32[128];	// allow for "stuff" + up to 256 byte (max) serial number
++	u32 work32[128];	// allow for "stuff" + up to 256 byte (max) serial number
+ 	// == (allow) 512d bytes (max)
+-	static u16 *work16 = (u16 *) work32;
++	u16 *work16 = (u16 *) work32;
+ 	int token;
+-	char tmp[16 + 1];
+ 
+ 	token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
+ 
+@@ -1262,14 +1251,10 @@ static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
+ 	seq_printf(seq, "Device Class  : %s\n", i2o_get_class_name(work16[0]));
+ 	seq_printf(seq, "Owner TID     : %0#5x\n", work16[2]);
+ 	seq_printf(seq, "Parent TID    : %0#5x\n", work16[3]);
+-	seq_printf(seq, "Vendor info   : %s\n",
+-		   chtostr(tmp, (u8 *) (work32 + 2), 16));
+-	seq_printf(seq, "Product info  : %s\n",
+-		   chtostr(tmp, (u8 *) (work32 + 6), 16));
+-	seq_printf(seq, "Description   : %s\n",
+-		   chtostr(tmp, (u8 *) (work32 + 10), 16));
+-	seq_printf(seq, "Product rev.  : %s\n",
+-		   chtostr(tmp, (u8 *) (work32 + 14), 8));
++	seq_printf(seq, "Vendor info   : %.16s\n", (u8 *) (work32 + 2));
++	seq_printf(seq, "Product info  : %.16s\n", (u8 *) (work32 + 6));
++	seq_printf(seq, "Description   : %.16s\n", (u8 *) (work32 + 10));
++	seq_printf(seq, "Product rev.  : %.8s\n", (u8 *) (work32 + 14));
+ 
+ 	seq_printf(seq, "Serial number : ");
+ 	print_serial_number(seq, (u8 *) (work32 + 16),
+@@ -1306,8 +1291,6 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
+ 		u8 pad[256];	// allow up to 256 byte (max) serial number
+ 	} result;
+ 
+-	char tmp[24 + 1];
+-
+ 	token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
+ 
+ 	if (token < 0) {
+@@ -1316,10 +1299,8 @@ static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
+ 	}
+ 
+ 	seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
+-	seq_printf(seq, "Module name         : %s\n",
+-		   chtostr(tmp, result.module_name, 24));
+-	seq_printf(seq, "Module revision     : %s\n",
+-		   chtostr(tmp, result.module_rev, 8));
++	seq_printf(seq, "Module name         : %.24s\n", result.module_name);
++	seq_printf(seq, "Module revision     : %.8s\n", result.module_rev);
+ 
+ 	seq_printf(seq, "Serial number       : ");
+ 	print_serial_number(seq, result.serial_number, sizeof(result) - 36);
+@@ -1343,8 +1324,6 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
+ 		u8 instance_number[4];
+ 	} result;
+ 
+-	char tmp[64 + 1];
+-
+ 	token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
+ 
+ 	if (token < 0) {
+@@ -1352,14 +1331,10 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
+ 		return 0;
+ 	}
+ 
+-	seq_printf(seq, "Device name     : %s\n",
+-		   chtostr(tmp, result.device_name, 64));
+-	seq_printf(seq, "Service name    : %s\n",
+-		   chtostr(tmp, result.service_name, 64));
+-	seq_printf(seq, "Physical name   : %s\n",
+-		   chtostr(tmp, result.physical_location, 64));
+-	seq_printf(seq, "Instance number : %s\n",
+-		   chtostr(tmp, result.instance_number, 4));
++	seq_printf(seq, "Device name     : %.64s\n", result.device_name);
++	seq_printf(seq, "Service name    : %.64s\n", result.service_name);
++	seq_printf(seq, "Physical name   : %.64s\n", result.physical_location);
++	seq_printf(seq, "Instance number : %.4s\n", result.instance_number);
+ 
+ 	return 0;
+ }
+@@ -1368,9 +1343,9 @@ static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
+ static int i2o_seq_show_sgl_limits(struct seq_file *seq, void *v)
+ {
+ 	struct i2o_device *d = (struct i2o_device *)seq->private;
+-	static u32 work32[12];
+-	static u16 *work16 = (u16 *) work32;
+-	static u8 *work8 = (u8 *) work32;
++	u32 work32[12];
++	u16 *work16 = (u16 *) work32;
++	u8 *work8 = (u8 *) work32;
+ 	int token;
+ 
+ 	token = i2o_parm_field_get(d, 0xF103, -1, &work32, sizeof(work32));
+diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
+index a8c08f3..155fe3d 100644
+--- a/drivers/message/i2o/iop.c
++++ b/drivers/message/i2o/iop.c
+@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
+ 
+ 	spin_lock_irqsave(&c->context_list_lock, flags);
+ 
+-	if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
+-		atomic_inc(&c->context_list_counter);
++	if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter)))
++		atomic_inc_unchecked(&c->context_list_counter);
+ 
+-	entry->context = atomic_read(&c->context_list_counter);
++	entry->context = atomic_read_unchecked(&c->context_list_counter);
+ 
+ 	list_add(&entry->list, &c->context_list);
+ 
+@@ -1077,7 +1077,7 @@ struct i2o_controller *i2o_iop_alloc(void)
+ 
+ #if BITS_PER_LONG == 64
+ 	spin_lock_init(&c->context_list_lock);
+-	atomic_set(&c->context_list_counter, 0);
++	atomic_set_unchecked(&c->context_list_counter, 0);
+ 	INIT_LIST_HEAD(&c->context_list);
+ #endif
+ 
+diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
+index d1a22aa..d0f7bf7 100644
+--- a/drivers/mfd/ab8500-debugfs.c
++++ b/drivers/mfd/ab8500-debugfs.c
+@@ -100,7 +100,7 @@ static int irq_last;
+ static u32 *irq_count;
+ static int num_irqs;
+ 
+-static struct device_attribute **dev_attr;
++static device_attribute_no_const **dev_attr;
+ static char **event_name;
+ 
+ static u8 avg_sample = SAMPLE_16;
+diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
+index 2df3cbc..e4101dc 100644
+--- a/drivers/mfd/kempld-core.c
++++ b/drivers/mfd/kempld-core.c
+@@ -414,7 +414,7 @@ static struct platform_driver kempld_driver = {
+ 	.remove		= kempld_remove,
+ };
+ 
+-static struct dmi_system_id __initdata kempld_dmi_table[] = {
++static const struct dmi_system_id __initconst kempld_dmi_table[] = {
+ 	{
+ 		.ident = "BHL6",
+ 		.matches = {
+diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
+index a83eed5..62a58a9 100644
+--- a/drivers/mfd/max8925-i2c.c
++++ b/drivers/mfd/max8925-i2c.c
+@@ -152,7 +152,7 @@ static int max8925_probe(struct i2c_client *client,
+ 				   const struct i2c_device_id *id)
+ {
+ 	struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
+-	static struct max8925_chip *chip;
++	struct max8925_chip *chip;
+ 	struct device_node *node = client->dev.of_node;
+ 
+ 	if (node && !pdata) {
+diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
+index d657331..0d9a80f 100644
+--- a/drivers/mfd/tps65910.c
++++ b/drivers/mfd/tps65910.c
+@@ -230,7 +230,7 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
+ 		    struct tps65910_platform_data *pdata)
+ {
+ 	int ret = 0;
+-	static struct regmap_irq_chip *tps6591x_irqs_chip;
++	struct regmap_irq_chip *tps6591x_irqs_chip;
+ 
+ 	if (!irq) {
+ 		dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n");
+diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
+index 9aa6d1e..1631bfc 100644
+--- a/drivers/mfd/twl4030-irq.c
++++ b/drivers/mfd/twl4030-irq.c
+@@ -35,6 +35,7 @@
+ #include <linux/of.h>
+ #include <linux/irqdomain.h>
+ #include <linux/i2c/twl.h>
++#include <asm/pgtable.h>
+ 
+ #include "twl-core.h"
+ 
+@@ -726,10 +727,12 @@ int twl4030_init_irq(struct device *dev, int irq_num)
+ 	 * Install an irq handler for each of the SIH modules;
+ 	 * clone dummy irq_chip since PIH can't *do* anything
+ 	 */
+-	twl4030_irq_chip = dummy_irq_chip;
+-	twl4030_irq_chip.name = "twl4030";
++	pax_open_kernel();
++	memcpy((void *)&twl4030_irq_chip, &dummy_irq_chip, sizeof twl4030_irq_chip);
++	*(const char **)&twl4030_irq_chip.name = "twl4030";
+ 
+-	twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
++	*(void **)&twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
++	pax_close_kernel();
+ 
+ 	for (i = irq_base; i < irq_end; i++) {
+ 		irq_set_chip_and_handler(i, &twl4030_irq_chip,
+diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
+index 464419b..64bae8d 100644
+--- a/drivers/misc/c2port/core.c
++++ b/drivers/misc/c2port/core.c
+@@ -922,7 +922,9 @@ struct c2port_device *c2port_device_register(char *name,
+ 		goto error_idr_alloc;
+ 	c2dev->id = ret;
+ 
+-	bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
++	pax_open_kernel();
++	*(size_t *)&bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
++	pax_close_kernel();
+ 
+ 	c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
+ 				   "c2port%d", c2dev->id);
+diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
+index 9c34e57..b981cda 100644
+--- a/drivers/misc/eeprom/sunxi_sid.c
++++ b/drivers/misc/eeprom/sunxi_sid.c
+@@ -127,7 +127,9 @@ static int sunxi_sid_probe(struct platform_device *pdev)
+ 
+ 	platform_set_drvdata(pdev, sid_data);
+ 
+-	sid_bin_attr.size = sid_data->keysize;
++	pax_open_kernel();
++	*(size_t *)&sid_bin_attr.size = sid_data->keysize;
++	pax_close_kernel();
+ 	if (device_create_bin_file(&pdev->dev, &sid_bin_attr))
+ 		return -ENODEV;
+ 
+diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
+index 36f5d52..32311c3 100644
+--- a/drivers/misc/kgdbts.c
++++ b/drivers/misc/kgdbts.c
+@@ -834,7 +834,7 @@ static void run_plant_and_detach_test(int is_early)
+ 	char before[BREAK_INSTR_SIZE];
+ 	char after[BREAK_INSTR_SIZE];
+ 
+-	probe_kernel_read(before, (char *)kgdbts_break_test,
++	probe_kernel_read(before, ktla_ktva((char *)kgdbts_break_test),
+ 	  BREAK_INSTR_SIZE);
+ 	init_simple_test();
+ 	ts.tst = plant_and_detach_test;
+@@ -842,7 +842,7 @@ static void run_plant_and_detach_test(int is_early)
+ 	/* Activate test with initial breakpoint */
+ 	if (!is_early)
+ 		kgdb_breakpoint();
+-	probe_kernel_read(after, (char *)kgdbts_break_test,
++	probe_kernel_read(after, ktla_ktva((char *)kgdbts_break_test),
+ 	  BREAK_INSTR_SIZE);
+ 	if (memcmp(before, after, BREAK_INSTR_SIZE)) {
+ 		printk(KERN_CRIT "kgdbts: ERROR kgdb corrupted memory\n");
+diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
+index 036effe..b3a6336 100644
+--- a/drivers/misc/lis3lv02d/lis3lv02d.c
++++ b/drivers/misc/lis3lv02d/lis3lv02d.c
+@@ -498,7 +498,7 @@ static irqreturn_t lis302dl_interrupt(int irq, void *data)
+ 	 * the lid is closed. This leads to interrupts as soon as a little move
+ 	 * is done.
+ 	 */
+-	atomic_inc(&lis3->count);
++	atomic_inc_unchecked(&lis3->count);
+ 
+ 	wake_up_interruptible(&lis3->misc_wait);
+ 	kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
+@@ -584,7 +584,7 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
+ 	if (lis3->pm_dev)
+ 		pm_runtime_get_sync(lis3->pm_dev);
+ 
+-	atomic_set(&lis3->count, 0);
++	atomic_set_unchecked(&lis3->count, 0);
+ 	return 0;
+ }
+ 
+@@ -616,7 +616,7 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
+ 	add_wait_queue(&lis3->misc_wait, &wait);
+ 	while (true) {
+ 		set_current_state(TASK_INTERRUPTIBLE);
+-		data = atomic_xchg(&lis3->count, 0);
++		data = atomic_xchg_unchecked(&lis3->count, 0);
+ 		if (data)
+ 			break;
+ 
+@@ -657,7 +657,7 @@ static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
+ 					      struct lis3lv02d, miscdev);
+ 
+ 	poll_wait(file, &lis3->misc_wait, wait);
+-	if (atomic_read(&lis3->count))
++	if (atomic_read_unchecked(&lis3->count))
+ 		return POLLIN | POLLRDNORM;
+ 	return 0;
+ }
+diff --git a/drivers/misc/lis3lv02d/lis3lv02d.h b/drivers/misc/lis3lv02d/lis3lv02d.h
+index c439c82..1f20f57 100644
+--- a/drivers/misc/lis3lv02d/lis3lv02d.h
++++ b/drivers/misc/lis3lv02d/lis3lv02d.h
+@@ -297,7 +297,7 @@ struct lis3lv02d {
+ 	struct input_polled_dev	*idev;     /* input device */
+ 	struct platform_device	*pdev;     /* platform device */
+ 	struct regulator_bulk_data regulators[2];
+-	atomic_t		count;     /* interrupt count after last read */
++	atomic_unchecked_t	count;     /* interrupt count after last read */
+ 	union axis_conversion	ac;        /* hw -> logical axis */
+ 	int			mapped_btns[3];
+ 
+diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
+index 2f30bad..c4c13d0 100644
+--- a/drivers/misc/sgi-gru/gruhandles.c
++++ b/drivers/misc/sgi-gru/gruhandles.c
+@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op op, unsigned long clks)
+ 	unsigned long nsec;
+ 
+ 	nsec = CLKS2NSEC(clks);
+-	atomic_long_inc(&mcs_op_statistics[op].count);
+-	atomic_long_add(nsec, &mcs_op_statistics[op].total);
++	atomic_long_inc_unchecked(&mcs_op_statistics[op].count);
++	atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total);
+ 	if (mcs_op_statistics[op].max < nsec)
+ 		mcs_op_statistics[op].max = nsec;
+ }
+diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
+index 4f76359..cdfcb2e 100644
+--- a/drivers/misc/sgi-gru/gruprocfs.c
++++ b/drivers/misc/sgi-gru/gruprocfs.c
+@@ -32,9 +32,9 @@
+ 
+ #define printstat(s, f)		printstat_val(s, &gru_stats.f, #f)
+ 
+-static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id)
++static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id)
+ {
+-	unsigned long val = atomic_long_read(v);
++	unsigned long val = atomic_long_read_unchecked(v);
+ 
+ 	seq_printf(s, "%16lu %s\n", val, id);
+ }
+@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct seq_file *s, void *p)
+ 
+ 	seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks");
+ 	for (op = 0; op < mcsop_last; op++) {
+-		count = atomic_long_read(&mcs_op_statistics[op].count);
+-		total = atomic_long_read(&mcs_op_statistics[op].total);
++		count = atomic_long_read_unchecked(&mcs_op_statistics[op].count);
++		total = atomic_long_read_unchecked(&mcs_op_statistics[op].total);
+ 		max = mcs_op_statistics[op].max;
+ 		seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count,
+ 			   count ? total / count : 0, max);
+diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
+index 5c3ce24..4915ccb 100644
+--- a/drivers/misc/sgi-gru/grutables.h
++++ b/drivers/misc/sgi-gru/grutables.h
+@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids;
+  * GRU statistics.
+  */
+ struct gru_stats_s {
+-	atomic_long_t vdata_alloc;
+-	atomic_long_t vdata_free;
+-	atomic_long_t gts_alloc;
+-	atomic_long_t gts_free;
+-	atomic_long_t gms_alloc;
+-	atomic_long_t gms_free;
+-	atomic_long_t gts_double_allocate;
+-	atomic_long_t assign_context;
+-	atomic_long_t assign_context_failed;
+-	atomic_long_t free_context;
+-	atomic_long_t load_user_context;
+-	atomic_long_t load_kernel_context;
+-	atomic_long_t lock_kernel_context;
+-	atomic_long_t unlock_kernel_context;
+-	atomic_long_t steal_user_context;
+-	atomic_long_t steal_kernel_context;
+-	atomic_long_t steal_context_failed;
+-	atomic_long_t nopfn;
+-	atomic_long_t asid_new;
+-	atomic_long_t asid_next;
+-	atomic_long_t asid_wrap;
+-	atomic_long_t asid_reuse;
+-	atomic_long_t intr;
+-	atomic_long_t intr_cbr;
+-	atomic_long_t intr_tfh;
+-	atomic_long_t intr_spurious;
+-	atomic_long_t intr_mm_lock_failed;
+-	atomic_long_t call_os;
+-	atomic_long_t call_os_wait_queue;
+-	atomic_long_t user_flush_tlb;
+-	atomic_long_t user_unload_context;
+-	atomic_long_t user_exception;
+-	atomic_long_t set_context_option;
+-	atomic_long_t check_context_retarget_intr;
+-	atomic_long_t check_context_unload;
+-	atomic_long_t tlb_dropin;
+-	atomic_long_t tlb_preload_page;
+-	atomic_long_t tlb_dropin_fail_no_asid;
+-	atomic_long_t tlb_dropin_fail_upm;
+-	atomic_long_t tlb_dropin_fail_invalid;
+-	atomic_long_t tlb_dropin_fail_range_active;
+-	atomic_long_t tlb_dropin_fail_idle;
+-	atomic_long_t tlb_dropin_fail_fmm;
+-	atomic_long_t tlb_dropin_fail_no_exception;
+-	atomic_long_t tfh_stale_on_fault;
+-	atomic_long_t mmu_invalidate_range;
+-	atomic_long_t mmu_invalidate_page;
+-	atomic_long_t flush_tlb;
+-	atomic_long_t flush_tlb_gru;
+-	atomic_long_t flush_tlb_gru_tgh;
+-	atomic_long_t flush_tlb_gru_zero_asid;
++	atomic_long_unchecked_t vdata_alloc;
++	atomic_long_unchecked_t vdata_free;
++	atomic_long_unchecked_t gts_alloc;
++	atomic_long_unchecked_t gts_free;
++	atomic_long_unchecked_t gms_alloc;
++	atomic_long_unchecked_t gms_free;
++	atomic_long_unchecked_t gts_double_allocate;
++	atomic_long_unchecked_t assign_context;
++	atomic_long_unchecked_t assign_context_failed;
++	atomic_long_unchecked_t free_context;
++	atomic_long_unchecked_t load_user_context;
++	atomic_long_unchecked_t load_kernel_context;
++	atomic_long_unchecked_t lock_kernel_context;
++	atomic_long_unchecked_t unlock_kernel_context;
++	atomic_long_unchecked_t steal_user_context;
++	atomic_long_unchecked_t steal_kernel_context;
++	atomic_long_unchecked_t steal_context_failed;
++	atomic_long_unchecked_t nopfn;
++	atomic_long_unchecked_t asid_new;
++	atomic_long_unchecked_t asid_next;
++	atomic_long_unchecked_t asid_wrap;
++	atomic_long_unchecked_t asid_reuse;
++	atomic_long_unchecked_t intr;
++	atomic_long_unchecked_t intr_cbr;
++	atomic_long_unchecked_t intr_tfh;
++	atomic_long_unchecked_t intr_spurious;
++	atomic_long_unchecked_t intr_mm_lock_failed;
++	atomic_long_unchecked_t call_os;
++	atomic_long_unchecked_t call_os_wait_queue;
++	atomic_long_unchecked_t user_flush_tlb;
++	atomic_long_unchecked_t user_unload_context;
++	atomic_long_unchecked_t user_exception;
++	atomic_long_unchecked_t set_context_option;
++	atomic_long_unchecked_t check_context_retarget_intr;
++	atomic_long_unchecked_t check_context_unload;
++	atomic_long_unchecked_t tlb_dropin;
++	atomic_long_unchecked_t tlb_preload_page;
++	atomic_long_unchecked_t tlb_dropin_fail_no_asid;
++	atomic_long_unchecked_t tlb_dropin_fail_upm;
++	atomic_long_unchecked_t tlb_dropin_fail_invalid;
++	atomic_long_unchecked_t tlb_dropin_fail_range_active;
++	atomic_long_unchecked_t tlb_dropin_fail_idle;
++	atomic_long_unchecked_t tlb_dropin_fail_fmm;
++	atomic_long_unchecked_t tlb_dropin_fail_no_exception;
++	atomic_long_unchecked_t tfh_stale_on_fault;
++	atomic_long_unchecked_t mmu_invalidate_range;
++	atomic_long_unchecked_t mmu_invalidate_page;
++	atomic_long_unchecked_t flush_tlb;
++	atomic_long_unchecked_t flush_tlb_gru;
++	atomic_long_unchecked_t flush_tlb_gru_tgh;
++	atomic_long_unchecked_t flush_tlb_gru_zero_asid;
+ 
+-	atomic_long_t copy_gpa;
+-	atomic_long_t read_gpa;
++	atomic_long_unchecked_t copy_gpa;
++	atomic_long_unchecked_t read_gpa;
+ 
+-	atomic_long_t mesq_receive;
+-	atomic_long_t mesq_receive_none;
+-	atomic_long_t mesq_send;
+-	atomic_long_t mesq_send_failed;
+-	atomic_long_t mesq_noop;
+-	atomic_long_t mesq_send_unexpected_error;
+-	atomic_long_t mesq_send_lb_overflow;
+-	atomic_long_t mesq_send_qlimit_reached;
+-	atomic_long_t mesq_send_amo_nacked;
+-	atomic_long_t mesq_send_put_nacked;
+-	atomic_long_t mesq_page_overflow;
+-	atomic_long_t mesq_qf_locked;
+-	atomic_long_t mesq_qf_noop_not_full;
+-	atomic_long_t mesq_qf_switch_head_failed;
+-	atomic_long_t mesq_qf_unexpected_error;
+-	atomic_long_t mesq_noop_unexpected_error;
+-	atomic_long_t mesq_noop_lb_overflow;
+-	atomic_long_t mesq_noop_qlimit_reached;
+-	atomic_long_t mesq_noop_amo_nacked;
+-	atomic_long_t mesq_noop_put_nacked;
+-	atomic_long_t mesq_noop_page_overflow;
++	atomic_long_unchecked_t mesq_receive;
++	atomic_long_unchecked_t mesq_receive_none;
++	atomic_long_unchecked_t mesq_send;
++	atomic_long_unchecked_t mesq_send_failed;
++	atomic_long_unchecked_t mesq_noop;
++	atomic_long_unchecked_t mesq_send_unexpected_error;
++	atomic_long_unchecked_t mesq_send_lb_overflow;
++	atomic_long_unchecked_t mesq_send_qlimit_reached;
++	atomic_long_unchecked_t mesq_send_amo_nacked;
++	atomic_long_unchecked_t mesq_send_put_nacked;
++	atomic_long_unchecked_t mesq_page_overflow;
++	atomic_long_unchecked_t mesq_qf_locked;
++	atomic_long_unchecked_t mesq_qf_noop_not_full;
++	atomic_long_unchecked_t mesq_qf_switch_head_failed;
++	atomic_long_unchecked_t mesq_qf_unexpected_error;
++	atomic_long_unchecked_t mesq_noop_unexpected_error;
++	atomic_long_unchecked_t mesq_noop_lb_overflow;
++	atomic_long_unchecked_t mesq_noop_qlimit_reached;
++	atomic_long_unchecked_t mesq_noop_amo_nacked;
++	atomic_long_unchecked_t mesq_noop_put_nacked;
++	atomic_long_unchecked_t mesq_noop_page_overflow;
+ 
+ };
+ 
+@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
+ 	tghop_invalidate, mcsop_last};
+ 
+ struct mcs_op_statistic {
+-	atomic_long_t	count;
+-	atomic_long_t	total;
++	atomic_long_unchecked_t	count;
++	atomic_long_unchecked_t	total;
+ 	unsigned long	max;
+ };
+ 
+@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
+ 
+ #define STAT(id)	do {						\
+ 				if (gru_options & OPT_STATS)		\
+-					atomic_long_inc(&gru_stats.id);	\
++					atomic_long_inc_unchecked(&gru_stats.id);	\
+ 			} while (0)
+ 
+ #ifdef CONFIG_SGI_GRU_DEBUG
+diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
+index c862cd4..0d176fe 100644
+--- a/drivers/misc/sgi-xp/xp.h
++++ b/drivers/misc/sgi-xp/xp.h
+@@ -288,7 +288,7 @@ struct xpc_interface {
+ 					xpc_notify_func, void *);
+ 	void (*received) (short, int, void *);
+ 	enum xp_retval (*partid_to_nasids) (short, void *);
+-};
++} __no_const;
+ 
+ extern struct xpc_interface xpc_interface;
+ 
+diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c
+index 01be66d..e3a0c7e 100644
+--- a/drivers/misc/sgi-xp/xp_main.c
++++ b/drivers/misc/sgi-xp/xp_main.c
+@@ -78,13 +78,13 @@ xpc_notloaded(void)
+ }
+ 
+ struct xpc_interface xpc_interface = {
+-	(void (*)(int))xpc_notloaded,
+-	(void (*)(int))xpc_notloaded,
+-	(enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
+-	(enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
++	.connect = (void (*)(int))xpc_notloaded,
++	.disconnect = (void (*)(int))xpc_notloaded,
++	.send = (enum xp_retval(*)(short, int, u32, void *, u16))xpc_notloaded,
++	.send_notify = (enum xp_retval(*)(short, int, u32, void *, u16, xpc_notify_func,
+ 			   void *))xpc_notloaded,
+-	(void (*)(short, int, void *))xpc_notloaded,
+-	(enum xp_retval(*)(short, void *))xpc_notloaded
++	.received = (void (*)(short, int, void *))xpc_notloaded,
++	.partid_to_nasids = (enum xp_retval(*)(short, void *))xpc_notloaded
+ };
+ EXPORT_SYMBOL_GPL(xpc_interface);
+ 
+diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h
+index b94d5f7..7f494c5 100644
+--- a/drivers/misc/sgi-xp/xpc.h
++++ b/drivers/misc/sgi-xp/xpc.h
+@@ -835,6 +835,7 @@ struct xpc_arch_operations {
+ 	void (*received_payload) (struct xpc_channel *, void *);
+ 	void (*notify_senders_of_disconnect) (struct xpc_channel *);
+ };
++typedef struct xpc_arch_operations __no_const xpc_arch_operations_no_const;
+ 
+ /* struct xpc_partition act_state values (for XPC HB) */
+ 
+@@ -876,7 +877,7 @@ extern struct xpc_registration xpc_registrations[];
+ /* found in xpc_main.c */
+ extern struct device *xpc_part;
+ extern struct device *xpc_chan;
+-extern struct xpc_arch_operations xpc_arch_ops;
++extern xpc_arch_operations_no_const xpc_arch_ops;
+ extern int xpc_disengage_timelimit;
+ extern int xpc_disengage_timedout;
+ extern int xpc_activate_IRQ_rcvd;
+diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
+index 82dc574..8539ab2 100644
+--- a/drivers/misc/sgi-xp/xpc_main.c
++++ b/drivers/misc/sgi-xp/xpc_main.c
+@@ -166,7 +166,7 @@ static struct notifier_block xpc_die_notifier = {
+ 	.notifier_call = xpc_system_die,
+ };
+ 
+-struct xpc_arch_operations xpc_arch_ops;
++xpc_arch_operations_no_const xpc_arch_ops;
+ 
+ /*
+  * Timer function to enforce the timelimit on the partition disengage.
+@@ -1210,7 +1210,7 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
+ 
+ 		if (((die_args->trapnr == X86_TRAP_MF) ||
+ 		     (die_args->trapnr == X86_TRAP_XF)) &&
+-		    !user_mode_vm(die_args->regs))
++		    !user_mode(die_args->regs))
+ 			xpc_die_deactivate();
+ 
+ 		break;
+diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
+index b1e21fc..f14200a 100644
+--- a/drivers/mmc/card/block.c
++++ b/drivers/mmc/card/block.c
+@@ -575,7 +575,7 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
+ 	if (idata->ic.postsleep_min_us)
+ 		usleep_range(idata->ic.postsleep_min_us, idata->ic.postsleep_max_us);
+ 
+-	if (copy_to_user(&(ic_ptr->response), cmd.resp, sizeof(cmd.resp))) {
++	if (copy_to_user(ic_ptr->response, cmd.resp, sizeof(cmd.resp))) {
+ 		err = -EFAULT;
+ 		goto cmd_rel_host;
+ 	}
+diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
+index e5b5eeb..7bf2212 100644
+--- a/drivers/mmc/core/mmc_ops.c
++++ b/drivers/mmc/core/mmc_ops.c
+@@ -247,7 +247,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
+ 	void *data_buf;
+ 	int is_on_stack;
+ 
+-	is_on_stack = object_is_on_stack(buf);
++	is_on_stack = object_starts_on_stack(buf);
+ 	if (is_on_stack) {
+ 		/*
+ 		 * dma onto stack is unsafe/nonportable, but callers to this
+diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
+index 6bf24ab..13d0293b 100644
+--- a/drivers/mmc/host/dw_mmc.h
++++ b/drivers/mmc/host/dw_mmc.h
+@@ -258,5 +258,5 @@ struct dw_mci_drv_data {
+ 	int		(*parse_dt)(struct dw_mci *host);
+ 	int		(*execute_tuning)(struct dw_mci_slot *slot, u32 opcode,
+ 					struct dw_mci_tuning_data *tuning_data);
+-};
++} __do_const;
+ #endif /* _DW_MMC_H_ */
+diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
+index b931226..df6a085 100644
+--- a/drivers/mmc/host/mmci.c
++++ b/drivers/mmc/host/mmci.c
+@@ -1504,7 +1504,9 @@ static int mmci_probe(struct amba_device *dev,
+ 	}
+ 
+ 	if (variant->busy_detect) {
+-		mmci_ops.card_busy = mmci_card_busy;
++		pax_open_kernel();
++		*(void **)&mmci_ops.card_busy = mmci_card_busy;
++		pax_close_kernel();
+ 		mmci_write_datactrlreg(host, MCI_ST_DPSM_BUSYMODE);
+ 	}
+ 
+diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
+index b841bb7..d82712f5 100644
+--- a/drivers/mmc/host/sdhci-esdhc-imx.c
++++ b/drivers/mmc/host/sdhci-esdhc-imx.c
+@@ -1031,9 +1031,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
+ 		host->mmc->caps |= MMC_CAP_1_8V_DDR;
+ 	}
+ 
+-	if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
+-		sdhci_esdhc_ops.platform_execute_tuning =
++	if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
++		pax_open_kernel();
++		*(void **)&sdhci_esdhc_ops.platform_execute_tuning =
+ 					esdhc_executing_tuning;
++		pax_close_kernel();
++	}
+ 
+ 	if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
+ 		writel(readl(host->ioaddr + ESDHC_TUNING_CTRL) |
+diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
+index 6debda9..2ba7427 100644
+--- a/drivers/mmc/host/sdhci-s3c.c
++++ b/drivers/mmc/host/sdhci-s3c.c
+@@ -668,9 +668,11 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
+ 	 * we can use overriding functions instead of default.
+ 	 */
+ 	if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) {
+-		sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
+-		sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
+-		sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
++		pax_open_kernel();
++		*(void **)&sdhci_s3c_ops.set_clock = sdhci_cmu_set_clock;
++		*(void **)&sdhci_s3c_ops.get_min_clock = sdhci_cmu_get_min_clock;
++		*(void **)&sdhci_s3c_ops.get_max_clock = sdhci_cmu_get_max_clock;
++		pax_close_kernel();
+ 	}
+ 
+ 	/* It supports additional host capabilities if needed */
+diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
+index 096993f..f02c23b 100644
+--- a/drivers/mtd/chips/cfi_cmdset_0020.c
++++ b/drivers/mtd/chips/cfi_cmdset_0020.c
+@@ -669,7 +669,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
+ 	size_t	 totlen = 0, thislen;
+ 	int	 ret = 0;
+ 	size_t	 buflen = 0;
+-	static char *buffer;
++	char *buffer;
+ 
+ 	if (!ECCBUF_SIZE) {
+ 		/* We should fall back to a general writev implementation.
+diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
+index c07cd57..61c4fbd 100644
+--- a/drivers/mtd/nand/denali.c
++++ b/drivers/mtd/nand/denali.c
+@@ -24,6 +24,7 @@
+ #include <linux/slab.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/module.h>
++#include <linux/slab.h>
+ 
+ #include "denali.h"
+ 
+diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+index ca6369f..0ce9fed 100644
+--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
++++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+@@ -369,7 +369,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
+ 
+ 	/* first try to map the upper buffer directly */
+ 	if (virt_addr_valid(this->upper_buf) &&
+-		!object_is_on_stack(this->upper_buf)) {
++		!object_starts_on_stack(this->upper_buf)) {
+ 		sg_init_one(sgl, this->upper_buf, this->upper_len);
+ 		ret = dma_map_sg(this->dev, sgl, 1, dr);
+ 		if (ret == 0)
+diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
+index 51b9d6a..52af9a7 100644
+--- a/drivers/mtd/nftlmount.c
++++ b/drivers/mtd/nftlmount.c
+@@ -24,6 +24,7 @@
+ #include <asm/errno.h>
+ #include <linux/delay.h>
+ #include <linux/slab.h>
++#include <linux/sched.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/nftl.h>
+diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
+index cf49c22..971b133 100644
+--- a/drivers/mtd/sm_ftl.c
++++ b/drivers/mtd/sm_ftl.c
+@@ -56,7 +56,7 @@ static ssize_t sm_attr_show(struct device *dev, struct device_attribute *attr,
+ #define SM_CIS_VENDOR_OFFSET 0x59
+ static struct attribute_group *sm_create_sysfs_attributes(struct sm_ftl *ftl)
+ {
+-	struct attribute_group *attr_group;
++	attribute_group_no_const *attr_group;
+ 	struct attribute **attributes;
+ 	struct sm_sysfs_attribute *vendor_attribute;
+ 	char *vendor;
+diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
+index 70651f8..7eb1bdf 100644
+--- a/drivers/net/bonding/bond_netlink.c
++++ b/drivers/net/bonding/bond_netlink.c
+@@ -542,7 +542,7 @@ nla_put_failure:
+ 	return -EMSGSIZE;
+ }
+ 
+-struct rtnl_link_ops bond_link_ops __read_mostly = {
++struct rtnl_link_ops bond_link_ops = {
+ 	.kind			= "bond",
+ 	.priv_size		= sizeof(struct bonding),
+ 	.setup			= bond_setup,
+diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
+index 5e40a8b..126bfda 100644
+--- a/drivers/net/caif/caif_hsi.c
++++ b/drivers/net/caif/caif_hsi.c
+@@ -1445,7 +1445,7 @@ err:
+ 	return -ENODEV;
+ }
+ 
+-static struct rtnl_link_ops caif_hsi_link_ops __read_mostly = {
++static struct rtnl_link_ops caif_hsi_link_ops = {
+ 	.kind		= "cfhsi",
+ 	.priv_size	= sizeof(struct cfhsi),
+ 	.setup		= cfhsi_setup,
+diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
+index 9e7d95d..d447b88 100644
+--- a/drivers/net/can/Kconfig
++++ b/drivers/net/can/Kconfig
+@@ -104,7 +104,7 @@ config CAN_JANZ_ICAN3
+ 
+ config CAN_FLEXCAN
+ 	tristate "Support for Freescale FLEXCAN based chips"
+-	depends on ARM || PPC
++	depends on (ARM && CPU_LITTLE_ENDIAN) || PPC
+ 	---help---
+ 	  Say Y here if you want to support for Freescale FlexCAN.
+ 
+diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
+index 84ad2b4..23cb983 100644
+--- a/drivers/net/can/dev.c
++++ b/drivers/net/can/dev.c
+@@ -768,7 +768,7 @@ static int can_newlink(struct net *src_net, struct net_device *dev,
+ 	return -EOPNOTSUPP;
+ }
+ 
+-static struct rtnl_link_ops can_link_ops __read_mostly = {
++static struct rtnl_link_ops can_link_ops = {
+ 	.kind		= "can",
+ 	.maxtype	= IFLA_CAN_MAX,
+ 	.policy		= can_policy,
+diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
+index 4e94057..32032ff 100644
+--- a/drivers/net/can/vcan.c
++++ b/drivers/net/can/vcan.c
+@@ -166,7 +166,7 @@ static void vcan_setup(struct net_device *dev)
+ 	dev->destructor		= free_netdev;
+ }
+ 
+-static struct rtnl_link_ops vcan_link_ops __read_mostly = {
++static struct rtnl_link_ops vcan_link_ops = {
+ 	.kind	= "vcan",
+ 	.setup	= vcan_setup,
+ };
+diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
+index bd8f84b..68ba9f1 100644
+--- a/drivers/net/dummy.c
++++ b/drivers/net/dummy.c
+@@ -155,7 +155,7 @@ static int dummy_validate(struct nlattr *tb[], struct nlattr *data[])
+ 	return 0;
+ }
+ 
+-static struct rtnl_link_ops dummy_link_ops __read_mostly = {
++static struct rtnl_link_ops dummy_link_ops = {
+ 	.kind		= "dummy",
+ 	.setup		= dummy_setup,
+ 	.validate	= dummy_validate,
+diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
+index 455d4c3..3353ee7 100644
+--- a/drivers/net/ethernet/8390/ax88796.c
++++ b/drivers/net/ethernet/8390/ax88796.c
+@@ -889,9 +889,11 @@ static int ax_probe(struct platform_device *pdev)
+ 	if (ax->plat->reg_offsets)
+ 		ei_local->reg_offset = ax->plat->reg_offsets;
+ 	else {
++		resource_size_t _mem_size = mem_size;
++		do_div(_mem_size, 0x18);
+ 		ei_local->reg_offset = ax->reg_offsets;
+ 		for (ret = 0; ret < 0x18; ret++)
+-			ax->reg_offsets[ret] = (mem_size / 0x18) * ret;
++			ax->reg_offsets[ret] = _mem_size * ret;
+ 	}
+ 
+ 	if (!request_mem_region(mem->start, mem_size, pdev->name)) {
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+index a89a40f..5a8a2ac 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+@@ -1062,7 +1062,7 @@ static inline u8 bnx2x_get_path_func_num(struct bnx2x *bp)
+ static inline void bnx2x_init_bp_objs(struct bnx2x *bp)
+ {
+ 	/* RX_MODE controlling object */
+-	bnx2x_init_rx_mode_obj(bp, &bp->rx_mode_obj);
++	bnx2x_init_rx_mode_obj(bp);
+ 
+ 	/* multicast configuration controlling object */
+ 	bnx2x_init_mcast_obj(bp, &bp->mcast_obj, bp->fp->cl_id, bp->fp->cid,
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+index 0fb6ff2..78fd55c 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+@@ -2329,15 +2329,14 @@ int bnx2x_config_rx_mode(struct bnx2x *bp,
+ 	return rc;
+ }
+ 
+-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
+-			    struct bnx2x_rx_mode_obj *o)
++void bnx2x_init_rx_mode_obj(struct bnx2x *bp)
+ {
+ 	if (CHIP_IS_E1x(bp)) {
+-		o->wait_comp      = bnx2x_empty_rx_mode_wait;
+-		o->config_rx_mode = bnx2x_set_rx_mode_e1x;
++		bp->rx_mode_obj.wait_comp      = bnx2x_empty_rx_mode_wait;
++		bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e1x;
+ 	} else {
+-		o->wait_comp      = bnx2x_wait_rx_mode_comp_e2;
+-		o->config_rx_mode = bnx2x_set_rx_mode_e2;
++		bp->rx_mode_obj.wait_comp      = bnx2x_wait_rx_mode_comp_e2;
++		bp->rx_mode_obj.config_rx_mode = bnx2x_set_rx_mode_e2;
+ 	}
+ }
+ 
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+index 00d7f21..2cddec4 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+@@ -1321,8 +1321,7 @@ int bnx2x_vlan_mac_move(struct bnx2x *bp,
+ 
+ /********************* RX MODE ****************/
+ 
+-void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
+-			    struct bnx2x_rx_mode_obj *o);
++void bnx2x_init_rx_mode_obj(struct bnx2x *bp);
+ 
+ /**
+  * bnx2x_config_rx_mode - Send and RX_MODE ramrod according to the provided parameters.
+diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
+index 04321e5..b51cdc4 100644
+--- a/drivers/net/ethernet/broadcom/tg3.h
++++ b/drivers/net/ethernet/broadcom/tg3.h
+@@ -150,6 +150,7 @@
+ #define  CHIPREV_ID_5750_A0		 0x4000
+ #define  CHIPREV_ID_5750_A1		 0x4001
+ #define  CHIPREV_ID_5750_A3		 0x4003
++#define  CHIPREV_ID_5750_C1		 0x4201
+ #define  CHIPREV_ID_5750_C2		 0x4202
+ #define  CHIPREV_ID_5752_A0_HW		 0x5000
+ #define  CHIPREV_ID_5752_A0		 0x6000
+diff --git a/drivers/net/ethernet/brocade/bna/bna_enet.c b/drivers/net/ethernet/brocade/bna/bna_enet.c
+index 13f9636..228040f 100644
+--- a/drivers/net/ethernet/brocade/bna/bna_enet.c
++++ b/drivers/net/ethernet/brocade/bna/bna_enet.c
+@@ -1690,10 +1690,10 @@ bna_cb_ioceth_reset(void *arg)
+ }
+ 
+ static struct bfa_ioc_cbfn bna_ioceth_cbfn = {
+-	bna_cb_ioceth_enable,
+-	bna_cb_ioceth_disable,
+-	bna_cb_ioceth_hbfail,
+-	bna_cb_ioceth_reset
++	.enable_cbfn = bna_cb_ioceth_enable,
++	.disable_cbfn = bna_cb_ioceth_disable,
++	.hbfail_cbfn = bna_cb_ioceth_hbfail,
++	.reset_cbfn = bna_cb_ioceth_reset
+ };
+ 
+ static void bna_attr_init(struct bna_ioceth *ioceth)
+diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
+index 669eeb4..1566ef0 100644
+--- a/drivers/net/ethernet/brocade/bna/bnad.c
++++ b/drivers/net/ethernet/brocade/bna/bnad.c
+@@ -552,6 +552,7 @@ bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
+ 
+ 		len = (vec == nvecs) ?
+ 			last_fraglen : unmap->vector.len;
++		skb->truesize += unmap->vector.len;
+ 		totlen += len;
+ 
+ 		skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags,
+@@ -563,7 +564,6 @@ bnad_cq_setup_skb_frags(struct bna_rcb *rcb, struct sk_buff *skb,
+ 
+ 	skb->len += totlen;
+ 	skb->data_len += totlen;
+-	skb->truesize += totlen;
+ }
+ 
+ static inline void
+diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
+index 8cffcdf..aadf043 100644
+--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
++++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
+@@ -87,7 +87,7 @@ typedef void (*arp_failure_handler_func)(struct t3cdev * dev,
+  */
+ struct l2t_skb_cb {
+ 	arp_failure_handler_func arp_failure_handler;
+-};
++} __no_const;
+ 
+ #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb)
+ 
+diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+index 34e2488..07e2079 100644
+--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
++++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+@@ -2120,7 +2120,7 @@ static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ 
+ 	int i;
+ 	struct adapter *ap = netdev2adap(dev);
+-	static const unsigned int *reg_ranges;
++	const unsigned int *reg_ranges;
+ 	int arr_size = 0, buf_size = 0;
+ 
+ 	if (is_t4(ap->params.chip)) {
+diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
+index c05b66d..ed69872 100644
+--- a/drivers/net/ethernet/dec/tulip/de4x5.c
++++ b/drivers/net/ethernet/dec/tulip/de4x5.c
+@@ -5388,7 +5388,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+ 	for (i=0; i<ETH_ALEN; i++) {
+ 	    tmp.addr[i] = dev->dev_addr[i];
+ 	}
+-	if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
++	if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT;
+ 	break;
+ 
+     case DE4X5_SET_HWADDR:           /* Set the hardware address */
+@@ -5428,7 +5428,7 @@ de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+ 	spin_lock_irqsave(&lp->lock, flags);
+ 	memcpy(&statbuf, &lp->pktStats, ioc->len);
+ 	spin_unlock_irqrestore(&lp->lock, flags);
+-	if (copy_to_user(ioc->data, &statbuf, ioc->len))
++	if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len))
+ 		return -EFAULT;
+ 	break;
+     }
+diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
+index 075e7e7..1dbbe03 100644
+--- a/drivers/net/ethernet/emulex/benet/be_main.c
++++ b/drivers/net/ethernet/emulex/benet/be_main.c
+@@ -534,7 +534,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
+ 
+ 	if (wrapped)
+ 		newacc += 65536;
+-	ACCESS_ONCE(*acc) = newacc;
++	ACCESS_ONCE_RW(*acc) = newacc;
+ }
+ 
+ static void populate_erx_stats(struct be_adapter *adapter,
+@@ -4002,6 +4002,9 @@ static int be_ndo_bridge_setlink(struct net_device *dev,
+ 		if (nla_type(attr) != IFLA_BRIDGE_MODE)
+ 			continue;
+ 
++		if (nla_len(attr) < sizeof(mode))
++			return -EINVAL;
++
+ 		mode = nla_get_u16(attr);
+ 		if (mode != BRIDGE_MODE_VEPA && mode != BRIDGE_MODE_VEB)
+ 			return -EINVAL;
+diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
+index c11ecbc..13bb299 100644
+--- a/drivers/net/ethernet/faraday/ftgmac100.c
++++ b/drivers/net/ethernet/faraday/ftgmac100.c
+@@ -30,6 +30,8 @@
+ #include <linux/netdevice.h>
+ #include <linux/phy.h>
+ #include <linux/platform_device.h>
++#include <linux/interrupt.h>
++#include <linux/irqreturn.h>
+ #include <net/ip.h>
+ 
+ #include "ftgmac100.h"
+diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
+index 8be5b40..081bc1b6 100644
+--- a/drivers/net/ethernet/faraday/ftmac100.c
++++ b/drivers/net/ethernet/faraday/ftmac100.c
+@@ -31,6 +31,8 @@
+ #include <linux/module.h>
+ #include <linux/netdevice.h>
+ #include <linux/platform_device.h>
++#include <linux/interrupt.h>
++#include <linux/irqreturn.h>
+ 
+ #include "ftmac100.h"
+ 
+diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c
+index 63d2344..65b62c47 100644
+--- a/drivers/net/ethernet/freescale/gianfar_ethtool.c
++++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c
+@@ -1614,7 +1614,7 @@ static int gfar_write_filer_table(struct gfar_private *priv,
+ 	lock_rx_qs(priv);
+ 
+ 	/* Fill regular entries */
+-	for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].ctrl);
++	for (; i < MAX_FILER_IDX - 1 && (tab->fe[i].ctrl | tab->fe[i].prop);
+ 	     i++)
+ 		gfar_write_filer(priv, i, tab->fe[i].ctrl, tab->fe[i].prop);
+ 	/* Fill the rest with fall-troughs */
+diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+index e33ec6c..f54cfe7 100644
+--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
++++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+@@ -436,7 +436,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
+ 	wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
+ 
+ 	/* Update the base adjustement value. */
+-	ACCESS_ONCE(pf->ptp_base_adj) = incval;
++	ACCESS_ONCE_RW(pf->ptp_base_adj) = incval;
+ 	smp_mb(); /* Force the above update. */
+ }
+ 
+diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+index 18076c4..c2cb27f 100644
+--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
++++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+@@ -7571,6 +7571,9 @@ static int ixgbe_ndo_bridge_setlink(struct net_device *dev,
+ 		if (nla_type(attr) != IFLA_BRIDGE_MODE)
+ 			continue;
+ 
++		if (nla_len(attr) < sizeof(mode))
++			return -EINVAL;
++
+ 		mode = nla_get_u16(attr);
+ 		if (mode == BRIDGE_MODE_VEPA) {
+ 			reg = 0;
+diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+index 5184e2a..acb28c3 100644
+--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
++++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+@@ -776,7 +776,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
+ 	}
+ 
+ 	/* update the base incval used to calculate frequency adjustment */
+-	ACCESS_ONCE(adapter->base_incval) = incval;
++	ACCESS_ONCE_RW(adapter->base_incval) = incval;
+ 	smp_mb();
+ 
+ 	/* need lock to prevent incorrect read while modifying cyclecounter */
+diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+index dff0977..6df4b1d 100644
+--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
++++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+@@ -1270,6 +1270,9 @@ int ixgbe_ndo_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting)
+ 	struct ixgbe_hw *hw = &adapter->hw;
+ 	u32 regval;
+ 
++	if (vf >= adapter->num_vfs)
++		return -EINVAL;
++
+ 	adapter->vfinfo[vf].spoofchk_enabled = setting;
+ 
+ 	regval = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg));
+diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
+index 9eeddbd..6d9e10d 100644
+--- a/drivers/net/ethernet/neterion/s2io.c
++++ b/drivers/net/ethernet/neterion/s2io.c
+@@ -6992,7 +6992,9 @@ static int s2io_add_isr(struct s2io_nic *sp)
+ 			if (sp->s2io_entries[i].in_use == MSIX_FLG) {
+ 				if (sp->s2io_entries[i].type ==
+ 				    MSIX_RING_TYPE) {
+-					sprintf(sp->desc[i], "%s:MSI-X-%d-RX",
++					snprintf(sp->desc[i],
++						sizeof(sp->desc[i]),
++						"%s:MSI-X-%d-RX",
+ 						dev->name, i);
+ 					err = request_irq(sp->entries[i].vector,
+ 							  s2io_msix_ring_handle,
+@@ -7001,7 +7003,9 @@ static int s2io_add_isr(struct s2io_nic *sp)
+ 							  sp->s2io_entries[i].arg);
+ 				} else if (sp->s2io_entries[i].type ==
+ 					   MSIX_ALARM_TYPE) {
+-					sprintf(sp->desc[i], "%s:MSI-X-%d-TX",
++					snprintf(sp->desc[i],
++						sizeof(sp->desc[i]),
++						"%s:MSI-X-%d-TX",
+ 						dev->name, i);
+ 					err = request_irq(sp->entries[i].vector,
+ 							  s2io_msix_fifo_handle,
+@@ -8159,7 +8163,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
+ 			  "%s: UDP Fragmentation Offload(UFO) enabled\n",
+ 			  dev->name);
+ 	/* Initialize device name */
+-	sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
++	snprintf(sp->name, sizeof(sp->name), "%s Neterion %s", dev->name,
++		 sp->product_name);
+ 
+ 	if (vlan_tag_strip)
+ 		sp->vlan_strip_flag = 1;
+diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
+index 089b713..28d87ae 100644
+--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
++++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
+@@ -3461,7 +3461,10 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
+ 	struct __vxge_hw_fifo *fifo;
+ 	struct vxge_hw_fifo_config *config;
+ 	u32 txdl_size, txdl_per_memblock;
+-	struct vxge_hw_mempool_cbs fifo_mp_callback;
++	static struct vxge_hw_mempool_cbs fifo_mp_callback = {
++		.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc,
++	};
++
+ 	struct __vxge_hw_virtualpath *vpath;
+ 
+ 	if ((vp == NULL) || (attr == NULL)) {
+@@ -3544,8 +3547,6 @@ __vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
+ 		goto exit;
+ 	}
+ 
+-	fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
+-
+ 	fifo->mempool =
+ 		__vxge_hw_mempool_create(vpath->hldev,
+ 			fifo->config->memblock_size,
+diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+index 90a2dda..47e620e 100644
+--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
++++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+@@ -2088,7 +2088,9 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
+ 		adapter->max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
+ 	} else if (ret == QLC_83XX_DEFAULT_OPMODE) {
+ 		ahw->nic_mode = QLCNIC_DEFAULT_MODE;
+-		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
++		pax_open_kernel();
++		*(void **)&adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
++		pax_close_kernel();
+ 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
+ 		adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
+ 		adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS;
+diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+index be7d7a6..a8983f8 100644
+--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
++++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+@@ -207,17 +207,23 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
+ 	case QLCNIC_NON_PRIV_FUNC:
+ 		ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
+ 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
+-		nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
++		pax_open_kernel();
++		*(void **)&nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
++		pax_close_kernel();
+ 		break;
+ 	case QLCNIC_PRIV_FUNC:
+ 		ahw->op_mode = QLCNIC_PRIV_FUNC;
+ 		ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
+-		nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
++		pax_open_kernel();
++		*(void **)&nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
++		pax_close_kernel();
+ 		break;
+ 	case QLCNIC_MGMT_FUNC:
+ 		ahw->op_mode = QLCNIC_MGMT_FUNC;
+ 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
+-		nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
++		pax_open_kernel();
++		*(void **)&nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
++		pax_close_kernel();
+ 		break;
+ 	default:
+ 		dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
+diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
+index 7763962..c3499a7 100644
+--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
++++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
+@@ -1108,7 +1108,7 @@ int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
+ 	struct qlcnic_dump_entry *entry;
+ 	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
+ 	struct qlcnic_dump_template_hdr *tmpl_hdr = fw_dump->tmpl_hdr;
+-	static const struct qlcnic_dump_operations *fw_dump_ops;
++	const struct qlcnic_dump_operations *fw_dump_ops;
+ 	struct device *dev = &adapter->pdev->dev;
+ 	struct qlcnic_hardware_context *ahw;
+ 	void *temp_buffer;
+diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
+index 90c14d1..3bd4467 100644
+--- a/drivers/net/ethernet/realtek/r8169.c
++++ b/drivers/net/ethernet/realtek/r8169.c
+@@ -758,22 +758,22 @@ struct rtl8169_private {
+ 	struct mdio_ops {
+ 		void (*write)(struct rtl8169_private *, int, int);
+ 		int (*read)(struct rtl8169_private *, int);
+-	} mdio_ops;
++	} __no_const mdio_ops;
+ 
+ 	struct pll_power_ops {
+ 		void (*down)(struct rtl8169_private *);
+ 		void (*up)(struct rtl8169_private *);
+-	} pll_power_ops;
++	} __no_const pll_power_ops;
+ 
+ 	struct jumbo_ops {
+ 		void (*enable)(struct rtl8169_private *);
+ 		void (*disable)(struct rtl8169_private *);
+-	} jumbo_ops;
++	} __no_const jumbo_ops;
+ 
+ 	struct csi_ops {
+ 		void (*write)(struct rtl8169_private *, int, int);
+ 		u32 (*read)(struct rtl8169_private *, int);
+-	} csi_ops;
++	} __no_const csi_ops;
+ 
+ 	int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv);
+ 	int (*get_settings)(struct net_device *, struct ethtool_cmd *);
+diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
+index d7a3682..9ce272a 100644
+--- a/drivers/net/ethernet/sfc/ptp.c
++++ b/drivers/net/ethernet/sfc/ptp.c
+@@ -825,7 +825,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
+ 		       ptp->start.dma_addr);
+ 
+ 	/* Clear flag that signals MC ready */
+-	ACCESS_ONCE(*start) = 0;
++	ACCESS_ONCE_RW(*start) = 0;
+ 	rc = efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
+ 				MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
+ 	EFX_BUG_ON_PARANOID(rc);
+diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
+index 2664181..c9fcf6f 100644
+--- a/drivers/net/ethernet/sfc/selftest.c
++++ b/drivers/net/ethernet/sfc/selftest.c
+@@ -46,7 +46,7 @@ struct efx_loopback_payload {
+ 	struct iphdr ip;
+ 	struct udphdr udp;
+ 	__be16 iteration;
+-	const char msg[64];
++	char msg[64];
+ } __packed;
+ 
+ /* Loopback test source MAC address */
+diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+index 50617c5..b13724c 100644
+--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
++++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+@@ -140,8 +140,8 @@ void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
+ 
+ 	writel(value, ioaddr + MMC_CNTRL);
+ 
+-	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
+-		 MMC_CNTRL, value);
++//	pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
++//		 MMC_CNTRL, value);
+ }
+ 
+ /* To mask all all interrupts.*/
+diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
+index 6ac20a6..a0cbf82 100644
+--- a/drivers/net/ethernet/via/via-rhine.c
++++ b/drivers/net/ethernet/via/via-rhine.c
+@@ -2417,7 +2417,7 @@ static struct pci_driver rhine_driver = {
+ 	.driver.pm	= RHINE_PM_OPS,
+ };
+ 
+-static struct dmi_system_id rhine_dmi_table[] __initdata = {
++static const struct dmi_system_id rhine_dmi_table[] __initconst = {
+ 	{
+ 		.ident = "EPIA-M",
+ 		.matches = {
+diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
+index 7b594ce..1f6c5708 100644
+--- a/drivers/net/hyperv/hyperv_net.h
++++ b/drivers/net/hyperv/hyperv_net.h
+@@ -100,7 +100,7 @@ struct rndis_device {
+ 
+ 	enum rndis_device_state state;
+ 	bool link_state;
+-	atomic_t new_req_id;
++	atomic_unchecked_t new_req_id;
+ 
+ 	spinlock_t request_lock;
+ 	struct list_head req_list;
+diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
+index b54fd25..9bd2bae 100644
+--- a/drivers/net/hyperv/rndis_filter.c
++++ b/drivers/net/hyperv/rndis_filter.c
+@@ -103,7 +103,7 @@ static struct rndis_request *get_rndis_request(struct rndis_device *dev,
+ 	 * template
+ 	 */
+ 	set = &rndis_msg->msg.set_req;
+-	set->req_id = atomic_inc_return(&dev->new_req_id);
++	set->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
+ 
+ 	/* Add to the request list */
+ 	spin_lock_irqsave(&dev->request_lock, flags);
+@@ -770,7 +770,7 @@ static void rndis_filter_halt_device(struct rndis_device *dev)
+ 
+ 	/* Setup the rndis set */
+ 	halt = &request->request_msg.msg.halt_req;
+-	halt->req_id = atomic_inc_return(&dev->new_req_id);
++	halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id);
+ 
+ 	/* Ignore return since this msg is optional. */
+ 	rndis_filter_send_request(dev, request);
+diff --git a/drivers/net/ieee802154/fakehard.c b/drivers/net/ieee802154/fakehard.c
+index 6adbef8..cd6a5f1 100644
+--- a/drivers/net/ieee802154/fakehard.c
++++ b/drivers/net/ieee802154/fakehard.c
+@@ -364,7 +364,7 @@ static int ieee802154fake_probe(struct platform_device *pdev)
+ 	phy->transmit_power = 0xbf;
+ 
+ 	dev->netdev_ops = &fake_ops;
+-	dev->ml_priv = &fake_mlme;
++	dev->ml_priv = (void *)&fake_mlme;
+ 
+ 	priv = netdev_priv(dev);
+ 	priv->phy = phy;
+diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
+index d7b2e94..0812ae9 100644
+--- a/drivers/net/ifb.c
++++ b/drivers/net/ifb.c
+@@ -252,7 +252,7 @@ static int ifb_validate(struct nlattr *tb[], struct nlattr *data[])
+ 	return 0;
+ }
+ 
+-static struct rtnl_link_ops ifb_link_ops __read_mostly = {
++static struct rtnl_link_ops ifb_link_ops = {
+ 	.kind		= "ifb",
+ 	.priv_size	= sizeof(struct ifb_private),
+ 	.setup		= ifb_setup,
+diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
+index fbf7dcd..ad71499 100644
+--- a/drivers/net/macvlan.c
++++ b/drivers/net/macvlan.c
+@@ -993,13 +993,15 @@ static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
+ int macvlan_link_register(struct rtnl_link_ops *ops)
+ {
+ 	/* common fields */
+-	ops->priv_size		= sizeof(struct macvlan_dev);
+-	ops->validate		= macvlan_validate;
+-	ops->maxtype		= IFLA_MACVLAN_MAX;
+-	ops->policy		= macvlan_policy;
+-	ops->changelink		= macvlan_changelink;
+-	ops->get_size		= macvlan_get_size;
+-	ops->fill_info		= macvlan_fill_info;
++	pax_open_kernel();
++	*(size_t *)&ops->priv_size	= sizeof(struct macvlan_dev);
++	*(void **)&ops->validate	= macvlan_validate;
++	*(int *)&ops->maxtype		= IFLA_MACVLAN_MAX;
++	*(const void **)&ops->policy	= macvlan_policy;
++	*(void **)&ops->changelink	= macvlan_changelink;
++	*(void **)&ops->get_size	= macvlan_get_size;
++	*(void **)&ops->fill_info	= macvlan_fill_info;
++	pax_close_kernel();
+ 
+ 	return rtnl_link_register(ops);
+ };
+@@ -1053,7 +1055,7 @@ static int macvlan_device_event(struct notifier_block *unused,
+ 	return NOTIFY_DONE;
+ }
+ 
+-static struct notifier_block macvlan_notifier_block __read_mostly = {
++static struct notifier_block macvlan_notifier_block = {
+ 	.notifier_call	= macvlan_device_event,
+ };
+ 
+diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
+index e8c21f9..747b848 100644
+--- a/drivers/net/macvtap.c
++++ b/drivers/net/macvtap.c
+@@ -422,7 +422,7 @@ static void macvtap_setup(struct net_device *dev)
+ 	dev->tx_queue_len = TUN_READQ_SIZE;
+ }
+ 
+-static struct rtnl_link_ops macvtap_link_ops __read_mostly = {
++static struct rtnl_link_ops macvtap_link_ops = {
+ 	.kind		= "macvtap",
+ 	.setup		= macvtap_setup,
+ 	.newlink	= macvtap_newlink,
+@@ -1026,7 +1026,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
+ 		}
+ 
+ 		ret = 0;
+-		if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
++		if (copy_to_user(ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
+ 		    put_user(q->flags, &ifr->ifr_flags))
+ 			ret = -EFAULT;
+ 		macvtap_put_vlan(vlan);
+@@ -1196,7 +1196,7 @@ static int macvtap_device_event(struct notifier_block *unused,
+ 	return NOTIFY_DONE;
+ }
+ 
+-static struct notifier_block macvtap_notifier_block __read_mostly = {
++static struct notifier_block macvtap_notifier_block = {
+ 	.notifier_call	= macvtap_device_event,
+ };
+ 
+diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
+index d2bb12b..d6c921e 100644
+--- a/drivers/net/nlmon.c
++++ b/drivers/net/nlmon.c
+@@ -162,7 +162,7 @@ static int nlmon_validate(struct nlattr *tb[], struct nlattr *data[])
+ 	return 0;
+ }
+ 
+-static struct rtnl_link_ops nlmon_link_ops __read_mostly = {
++static struct rtnl_link_ops nlmon_link_ops = {
+ 	.kind			= "nlmon",
+ 	.priv_size		= sizeof(struct nlmon),
+ 	.setup			= nlmon_setup,
+diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
+index 25f7419..62ed80a7 100644
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -216,7 +216,7 @@ EXPORT_SYMBOL(phy_device_create);
+  *   zero on success.
+  *
+  */
+-static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
++static int get_phy_c45_ids(struct mii_bus *bus, int addr, int *phy_id,
+ 			   struct phy_c45_device_ids *c45_ids) {
+ 	int phy_reg;
+ 	int i, reg_addr;
+@@ -286,7 +286,7 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
+  *   its return value is in turn returned.
+  *
+  */
+-static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
++static int get_phy_id(struct mii_bus *bus, int addr, int *phy_id,
+ 		      bool is_c45, struct phy_c45_device_ids *c45_ids)
+ {
+ 	int phy_reg;
+@@ -324,7 +324,7 @@ static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id,
+ struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45)
+ {
+ 	struct phy_c45_device_ids c45_ids = {0};
+-	u32 phy_id = 0;
++	int phy_id = 0;
+ 	int r;
+ 
+ 	r = get_phy_id(bus, addr, &phy_id, is_c45, &c45_ids);
+diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
+index 5a1897d..e860630 100644
+--- a/drivers/net/ppp/ppp_generic.c
++++ b/drivers/net/ppp/ppp_generic.c
+@@ -999,7 +999,6 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 	void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data;
+ 	struct ppp_stats stats;
+ 	struct ppp_comp_stats cstats;
+-	char *vers;
+ 
+ 	switch (cmd) {
+ 	case SIOCGPPPSTATS:
+@@ -1021,8 +1020,7 @@ ppp_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 		break;
+ 
+ 	case SIOCGPPPVER:
+-		vers = PPP_VERSION;
+-		if (copy_to_user(addr, vers, strlen(vers) + 1))
++		if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION)))
+ 			break;
+ 		err = 0;
+ 		break;
+diff --git a/drivers/net/slip/slhc.c b/drivers/net/slip/slhc.c
+index 1252d9c..80e660b 100644
+--- a/drivers/net/slip/slhc.c
++++ b/drivers/net/slip/slhc.c
+@@ -488,7 +488,7 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
+ 	register struct tcphdr *thp;
+ 	register struct iphdr *ip;
+ 	register struct cstate *cs;
+-	int len, hdrlen;
++	long len, hdrlen;
+ 	unsigned char *cp = icp;
+ 
+ 	/* We've got a compressed packet; read the change byte */
+diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
+index c28e2da..f58845e 100644
+--- a/drivers/net/team/team.c
++++ b/drivers/net/team/team.c
+@@ -2096,7 +2096,7 @@ static unsigned int team_get_num_rx_queues(void)
+ 	return TEAM_DEFAULT_NUM_RX_QUEUES;
+ }
+ 
+-static struct rtnl_link_ops team_link_ops __read_mostly = {
++static struct rtnl_link_ops team_link_ops = {
+ 	.kind			= DRV_NAME,
+ 	.priv_size		= sizeof(struct team),
+ 	.setup			= team_setup,
+@@ -2884,7 +2884,7 @@ static int team_device_event(struct notifier_block *unused,
+ 	return NOTIFY_DONE;
+ }
+ 
+-static struct notifier_block team_notifier_block __read_mostly = {
++static struct notifier_block team_notifier_block = {
+ 	.notifier_call = team_device_event,
+ };
+ 
+diff --git a/drivers/net/tun.c b/drivers/net/tun.c
+index ec63314..465e154 100644
+--- a/drivers/net/tun.c
++++ b/drivers/net/tun.c
+@@ -1436,7 +1436,7 @@ static int tun_validate(struct nlattr *tb[], struct nlattr *data[])
+ 	return -EINVAL;
+ }
+ 
+-static struct rtnl_link_ops tun_link_ops __read_mostly = {
++static struct rtnl_link_ops tun_link_ops = {
+ 	.kind		= DRV_NAME,
+ 	.priv_size	= sizeof(struct tun_struct),
+ 	.setup		= tun_setup,
+@@ -1882,7 +1882,7 @@ unlock:
+ }
+ 
+ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
+-			    unsigned long arg, int ifreq_len)
++			    unsigned long arg, size_t ifreq_len)
+ {
+ 	struct tun_file *tfile = file->private_data;
+ 	struct tun_struct *tun;
+@@ -1895,6 +1895,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
+ 	unsigned int ifindex;
+ 	int ret;
+ 
++	if (ifreq_len > sizeof ifr)
++		return -EFAULT;
++
+ 	if (cmd == TUNSETIFF || cmd == TUNSETQUEUE || _IOC_TYPE(cmd) == 0x89) {
+ 		if (copy_from_user(&ifr, argp, ifreq_len))
+ 			return -EFAULT;
+diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
+index 660bd5e..ac59452 100644
+--- a/drivers/net/usb/hso.c
++++ b/drivers/net/usb/hso.c
+@@ -71,7 +71,7 @@
+ #include <asm/byteorder.h>
+ #include <linux/serial_core.h>
+ #include <linux/serial.h>
+-
++#include <asm/local.h>
+ 
+ #define MOD_AUTHOR			"Option Wireless"
+ #define MOD_DESCRIPTION			"USB High Speed Option driver"
+@@ -1179,7 +1179,7 @@ static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
+ 	struct urb *urb;
+ 
+ 	urb = serial->rx_urb[0];
+-	if (serial->port.count > 0) {
++	if (atomic_read(&serial->port.count) > 0) {
+ 		count = put_rxbuf_data(urb, serial);
+ 		if (count == -1)
+ 			return;
+@@ -1217,7 +1217,7 @@ static void hso_std_serial_read_bulk_callback(struct urb *urb)
+ 	DUMP1(urb->transfer_buffer, urb->actual_length);
+ 
+ 	/* Anyone listening? */
+-	if (serial->port.count == 0)
++	if (atomic_read(&serial->port.count) == 0)
+ 		return;
+ 
+ 	if (serial->parent->port_spec & HSO_INFO_CRC_BUG)
+@@ -1287,8 +1287,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
+ 	tty_port_tty_set(&serial->port, tty);
+ 
+ 	/* check for port already opened, if not set the termios */
+-	serial->port.count++;
+-	if (serial->port.count == 1) {
++	if (atomic_inc_return(&serial->port.count) == 1) {
+ 		serial->rx_state = RX_IDLE;
+ 		/* Force default termio settings */
+ 		_hso_serial_set_termios(tty, NULL);
+@@ -1300,7 +1299,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
+ 		result = hso_start_serial_device(serial->parent, GFP_KERNEL);
+ 		if (result) {
+ 			hso_stop_serial_device(serial->parent);
+-			serial->port.count--;
++			atomic_dec(&serial->port.count);
+ 			kref_put(&serial->parent->ref, hso_serial_ref_free);
+ 		}
+ 	} else {
+@@ -1337,10 +1336,10 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
+ 
+ 	/* reset the rts and dtr */
+ 	/* do the actual close */
+-	serial->port.count--;
++	atomic_dec(&serial->port.count);
+ 
+-	if (serial->port.count <= 0) {
+-		serial->port.count = 0;
++	if (atomic_read(&serial->port.count) <= 0) {
++		atomic_set(&serial->port.count, 0);
+ 		tty_port_tty_set(&serial->port, NULL);
+ 		if (!usb_gone)
+ 			hso_stop_serial_device(serial->parent);
+@@ -1416,7 +1415,7 @@ static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
+ 
+ 	/* the actual setup */
+ 	spin_lock_irqsave(&serial->serial_lock, flags);
+-	if (serial->port.count)
++	if (atomic_read(&serial->port.count))
+ 		_hso_serial_set_termios(tty, old);
+ 	else
+ 		tty->termios = *old;
+@@ -1885,7 +1884,7 @@ static void intr_callback(struct urb *urb)
+ 				D1("Pending read interrupt on port %d\n", i);
+ 				spin_lock(&serial->serial_lock);
+ 				if (serial->rx_state == RX_IDLE &&
+-					serial->port.count > 0) {
++					atomic_read(&serial->port.count) > 0) {
+ 					/* Setup and send a ctrl req read on
+ 					 * port i */
+ 					if (!serial->rx_urb_filled[0]) {
+@@ -3061,7 +3060,7 @@ static int hso_resume(struct usb_interface *iface)
+ 	/* Start all serial ports */
+ 	for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
+ 		if (serial_table[i] && (serial_table[i]->interface == iface)) {
+-			if (dev2ser(serial_table[i])->port.count) {
++			if (atomic_read(&dev2ser(serial_table[i])->port.count)) {
+ 				result =
+ 				    hso_start_serial_device(serial_table[i], GFP_NOIO);
+ 				hso_kick_transmit(dev2ser(serial_table[i]));
+diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
+index adb12f3..48005ab 100644
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -513,7 +513,7 @@ struct r8152 {
+ 		void (*disable)(struct r8152 *);
+ 		void (*down)(struct r8152 *);
+ 		void (*unload)(struct r8152 *);
+-	} rtl_ops;
++	} __no_const rtl_ops;
+ 
+ 	int intr_interval;
+ 	u32 msg_enable;
+diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
+index a2515887..6d13233 100644
+--- a/drivers/net/usb/sierra_net.c
++++ b/drivers/net/usb/sierra_net.c
+@@ -51,7 +51,7 @@ static const char driver_name[] = "sierra_net";
+ /* atomic counter partially included in MAC address to make sure 2 devices
+  * do not end up with the same MAC - concept breaks in case of > 255 ifaces
+  */
+-static	atomic_t iface_counter = ATOMIC_INIT(0);
++static	atomic_unchecked_t iface_counter = ATOMIC_INIT(0);
+ 
+ /*
+  * SYNC Timer Delay definition used to set the expiry time
+@@ -697,7 +697,7 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
+ 	dev->net->netdev_ops = &sierra_net_device_ops;
+ 
+ 	/* change MAC addr to include, ifacenum, and to be unique */
+-	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
++	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return_unchecked(&iface_counter);
+ 	dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
+ 
+ 	/* we will have to manufacture ethernet headers, prepare template */
+diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
+index f9e96c4..6b1faeb 100644
+--- a/drivers/net/usb/usbnet.c
++++ b/drivers/net/usb/usbnet.c
+@@ -1262,7 +1262,7 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
+ 				     struct net_device *net)
+ {
+ 	struct usbnet		*dev = netdev_priv(net);
+-	int			length;
++	unsigned int			length;
+ 	struct urb		*urb = NULL;
+ 	struct skb_data		*entry;
+ 	struct driver_info	*info = dev->driver_info;
+@@ -1378,7 +1378,7 @@ not_drop:
+ 		}
+ 	} else
+ 		netif_dbg(dev, tx_queued, dev->net,
+-			  "> tx, len %d, type 0x%x\n", length, skb->protocol);
++			  "> tx, len %u, type 0x%x\n", length, skb->protocol);
+ #ifdef CONFIG_PM
+ deferred:
+ #endif
+diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
+index 841b608..198a8b7 100644
+--- a/drivers/net/virtio_net.c
++++ b/drivers/net/virtio_net.c
+@@ -47,7 +47,7 @@ module_param(gso, bool, 0444);
+ #define RECEIVE_AVG_WEIGHT 64
+ 
+ /* Minimum alignment for mergeable packet buffers. */
+-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
++#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256UL)
+ 
+ #define VIRTNET_DRIVER_VERSION "1.0.0"
+ 
+diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
+index 5988910..be561a2 100644
+--- a/drivers/net/vxlan.c
++++ b/drivers/net/vxlan.c
+@@ -2851,7 +2851,7 @@ nla_put_failure:
+ 	return -EMSGSIZE;
+ }
+ 
+-static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
++static struct rtnl_link_ops vxlan_link_ops = {
+ 	.kind		= "vxlan",
+ 	.maxtype	= IFLA_VXLAN_MAX,
+ 	.policy		= vxlan_policy,
+@@ -2898,7 +2898,7 @@ static int vxlan_lowerdev_event(struct notifier_block *unused,
+ 	return NOTIFY_DONE;
+ }
+ 
+-static struct notifier_block vxlan_notifier_block __read_mostly = {
++static struct notifier_block vxlan_notifier_block = {
+ 	.notifier_call = vxlan_lowerdev_event,
+ };
+ 
+diff --git a/drivers/net/wan/lmc/lmc_media.c b/drivers/net/wan/lmc/lmc_media.c
+index 5920c99..ff2e4a5 100644
+--- a/drivers/net/wan/lmc/lmc_media.c
++++ b/drivers/net/wan/lmc/lmc_media.c
+@@ -95,62 +95,63 @@ static inline void write_av9110_bit (lmc_softc_t *, int);
+ static void write_av9110(lmc_softc_t *, u32, u32, u32, u32, u32);
+ 
+ lmc_media_t lmc_ds3_media = {
+-  lmc_ds3_init,			/* special media init stuff */
+-  lmc_ds3_default,		/* reset to default state */
+-  lmc_ds3_set_status,		/* reset status to state provided */
+-  lmc_dummy_set_1,		/* set clock source */
+-  lmc_dummy_set2_1,		/* set line speed */
+-  lmc_ds3_set_100ft,		/* set cable length */
+-  lmc_ds3_set_scram,		/* set scrambler */
+-  lmc_ds3_get_link_status,	/* get link status */
+-  lmc_dummy_set_1,		/* set link status */
+-  lmc_ds3_set_crc_length,	/* set CRC length */
+-  lmc_dummy_set_1,		/* set T1 or E1 circuit type */
+-  lmc_ds3_watchdog
++  .init = lmc_ds3_init,				/* special media init stuff */
++  .defaults = lmc_ds3_default,			/* reset to default state */
++  .set_status = lmc_ds3_set_status,		/* reset status to state provided */
++  .set_clock_source = lmc_dummy_set_1,		/* set clock source */
++  .set_speed = lmc_dummy_set2_1,		/* set line speed */
++  .set_cable_length = lmc_ds3_set_100ft,	/* set cable length */
++  .set_scrambler = lmc_ds3_set_scram,		/* set scrambler */
++  .get_link_status = lmc_ds3_get_link_status,	/* get link status */
++  .set_link_status = lmc_dummy_set_1,		/* set link status */
++  .set_crc_length = lmc_ds3_set_crc_length,	/* set CRC length */
++  .set_circuit_type = lmc_dummy_set_1,		/* set T1 or E1 circuit type */
++  .watchdog = lmc_ds3_watchdog
+ };
+ 
+ lmc_media_t lmc_hssi_media = {
+-  lmc_hssi_init,		/* special media init stuff */
+-  lmc_hssi_default,		/* reset to default state */
+-  lmc_hssi_set_status,		/* reset status to state provided */
+-  lmc_hssi_set_clock,		/* set clock source */
+-  lmc_dummy_set2_1,		/* set line speed */
+-  lmc_dummy_set_1,		/* set cable length */
+-  lmc_dummy_set_1,		/* set scrambler */
+-  lmc_hssi_get_link_status,	/* get link status */
+-  lmc_hssi_set_link_status,	/* set link status */
+-  lmc_hssi_set_crc_length,	/* set CRC length */
+-  lmc_dummy_set_1,		/* set T1 or E1 circuit type */
+-  lmc_hssi_watchdog
++  .init = lmc_hssi_init,			/* special media init stuff */
++  .defaults = lmc_hssi_default,			/* reset to default state */
++  .set_status = lmc_hssi_set_status,		/* reset status to state provided */
++  .set_clock_source = lmc_hssi_set_clock,	/* set clock source */
++  .set_speed = lmc_dummy_set2_1,		/* set line speed */
++  .set_cable_length = lmc_dummy_set_1,		/* set cable length */
++  .set_scrambler = lmc_dummy_set_1,		/* set scrambler */
++  .get_link_status = lmc_hssi_get_link_status,	/* get link status */
++  .set_link_status = lmc_hssi_set_link_status,	/* set link status */
++  .set_crc_length = lmc_hssi_set_crc_length,	/* set CRC length */
++  .set_circuit_type = lmc_dummy_set_1,		/* set T1 or E1 circuit type */
++  .watchdog = lmc_hssi_watchdog
+ };
+ 
+-lmc_media_t lmc_ssi_media = { lmc_ssi_init,	/* special media init stuff */
+-  lmc_ssi_default,		/* reset to default state */
+-  lmc_ssi_set_status,		/* reset status to state provided */
+-  lmc_ssi_set_clock,		/* set clock source */
+-  lmc_ssi_set_speed,		/* set line speed */
+-  lmc_dummy_set_1,		/* set cable length */
+-  lmc_dummy_set_1,		/* set scrambler */
+-  lmc_ssi_get_link_status,	/* get link status */
+-  lmc_ssi_set_link_status,	/* set link status */
+-  lmc_ssi_set_crc_length,	/* set CRC length */
+-  lmc_dummy_set_1,		/* set T1 or E1 circuit type */
+-  lmc_ssi_watchdog
++lmc_media_t lmc_ssi_media = {
++  .init = lmc_ssi_init,				/* special media init stuff */
++  .defaults = lmc_ssi_default,			/* reset to default state */
++  .set_status = lmc_ssi_set_status,		/* reset status to state provided */
++  .set_clock_source = lmc_ssi_set_clock,	/* set clock source */
++  .set_speed = lmc_ssi_set_speed,		/* set line speed */
++  .set_cable_length = lmc_dummy_set_1,		/* set cable length */
++  .set_scrambler = lmc_dummy_set_1,		/* set scrambler */
++  .get_link_status = lmc_ssi_get_link_status,	/* get link status */
++  .set_link_status = lmc_ssi_set_link_status,	/* set link status */
++  .set_crc_length = lmc_ssi_set_crc_length,	/* set CRC length */
++  .set_circuit_type = lmc_dummy_set_1,		/* set T1 or E1 circuit type */
++  .watchdog = lmc_ssi_watchdog
+ };
+ 
+ lmc_media_t lmc_t1_media = {
+-  lmc_t1_init,			/* special media init stuff */
+-  lmc_t1_default,		/* reset to default state */
+-  lmc_t1_set_status,		/* reset status to state provided */
+-  lmc_t1_set_clock,		/* set clock source */
+-  lmc_dummy_set2_1,		/* set line speed */
+-  lmc_dummy_set_1,		/* set cable length */
+-  lmc_dummy_set_1,		/* set scrambler */
+-  lmc_t1_get_link_status,	/* get link status */
+-  lmc_dummy_set_1,		/* set link status */
+-  lmc_t1_set_crc_length,	/* set CRC length */
+-  lmc_t1_set_circuit_type,	/* set T1 or E1 circuit type */
+-  lmc_t1_watchdog
++  .init = lmc_t1_init,				/* special media init stuff */
++  .defaults = lmc_t1_default,			/* reset to default state */
++  .set_status = lmc_t1_set_status,		/* reset status to state provided */
++  .set_clock_source = lmc_t1_set_clock,		/* set clock source */
++  .set_speed = lmc_dummy_set2_1,		/* set line speed */
++  .set_cable_length = lmc_dummy_set_1,		/* set cable length */
++  .set_scrambler = lmc_dummy_set_1,		/* set scrambler */
++  .get_link_status = lmc_t1_get_link_status,	/* get link status */
++  .set_link_status = lmc_dummy_set_1,		/* set link status */
++  .set_crc_length = lmc_t1_set_crc_length,	/* set CRC length */
++  .set_circuit_type = lmc_t1_set_circuit_type,	/* set T1 or E1 circuit type */
++  .watchdog = lmc_t1_watchdog
+ };
+ 
+ static void
+diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
+index 5895f19..fa9fdfa 100644
+--- a/drivers/net/wan/x25_asy.c
++++ b/drivers/net/wan/x25_asy.c
+@@ -122,8 +122,12 @@ static int x25_asy_change_mtu(struct net_device *dev, int newmtu)
+ {
+ 	struct x25_asy *sl = netdev_priv(dev);
+ 	unsigned char *xbuff, *rbuff;
+-	int len = 2 * newmtu;
++	int len;
+ 
++	if (newmtu > 65534)
++		return -EINVAL;
++
++	len = 2 * newmtu;
+ 	xbuff = kmalloc(len + 4, GFP_ATOMIC);
+ 	rbuff = kmalloc(len + 4, GFP_ATOMIC);
+ 
+diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
+index feacc3b..5bac0de 100644
+--- a/drivers/net/wan/z85230.c
++++ b/drivers/net/wan/z85230.c
+@@ -485,9 +485,9 @@ static void z8530_status(struct z8530_channel *chan)
+ 
+ struct z8530_irqhandler z8530_sync =
+ {
+-	z8530_rx,
+-	z8530_tx,
+-	z8530_status
++	.rx = z8530_rx,
++	.tx = z8530_tx,
++	.status = z8530_status
+ };
+ 
+ EXPORT_SYMBOL(z8530_sync);
+@@ -605,15 +605,15 @@ static void z8530_dma_status(struct z8530_channel *chan)
+ }
+ 
+ static struct z8530_irqhandler z8530_dma_sync = {
+-	z8530_dma_rx,
+-	z8530_dma_tx,
+-	z8530_dma_status
++	.rx = z8530_dma_rx,
++	.tx = z8530_dma_tx,
++	.status = z8530_dma_status
+ };
+ 
+ static struct z8530_irqhandler z8530_txdma_sync = {
+-	z8530_rx,
+-	z8530_dma_tx,
+-	z8530_dma_status
++	.rx = z8530_rx,
++	.tx = z8530_dma_tx,
++	.status = z8530_dma_status
+ };
+ 
+ /**
+@@ -680,9 +680,9 @@ static void z8530_status_clear(struct z8530_channel *chan)
+ 
+ struct z8530_irqhandler z8530_nop=
+ {
+-	z8530_rx_clear,
+-	z8530_tx_clear,
+-	z8530_status_clear
++	.rx = z8530_rx_clear,
++	.tx = z8530_tx_clear,
++	.status = z8530_status_clear
+ };
+ 
+ 
+diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c
+index 0b60295..b8bfa5b 100644
+--- a/drivers/net/wimax/i2400m/rx.c
++++ b/drivers/net/wimax/i2400m/rx.c
+@@ -1359,7 +1359,7 @@ int i2400m_rx_setup(struct i2400m *i2400m)
+ 		if (i2400m->rx_roq == NULL)
+ 			goto error_roq_alloc;
+ 
+-		rd = kcalloc(I2400M_RO_CIN + 1, sizeof(*i2400m->rx_roq[0].log),
++		rd = kcalloc(sizeof(*i2400m->rx_roq[0].log), I2400M_RO_CIN + 1,
+ 			     GFP_KERNEL);
+ 		if (rd == NULL) {
+ 			result = -ENOMEM;
+diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
+index edf4b57..68b51c0 100644
+--- a/drivers/net/wireless/airo.c
++++ b/drivers/net/wireless/airo.c
+@@ -7843,7 +7843,7 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) {
+ 	struct airo_info *ai = dev->ml_priv;
+ 	int  ridcode;
+         int  enabled;
+-	static int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
++	int (* writer)(struct airo_info *, u16 rid, const void *, int, int);
+ 	unsigned char *iobuf;
+ 
+ 	/* Only super-user can write RIDs */
+diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c
+index 99b3bfa..9559372 100644
+--- a/drivers/net/wireless/at76c50x-usb.c
++++ b/drivers/net/wireless/at76c50x-usb.c
+@@ -353,7 +353,7 @@ static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
+ }
+ 
+ /* Convert timeout from the DFU status to jiffies */
+-static inline unsigned long at76_get_timeout(struct dfu_status *s)
++static inline unsigned long __intentional_overflow(-1) at76_get_timeout(struct dfu_status *s)
+ {
+ 	return msecs_to_jiffies((s->poll_timeout[2] << 16)
+ 				| (s->poll_timeout[1] << 8)
+diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
+index edc57ab..ff49e0a 100644
+--- a/drivers/net/wireless/ath/ath10k/htc.c
++++ b/drivers/net/wireless/ath/ath10k/htc.c
+@@ -831,7 +831,10 @@ void ath10k_htc_stop(struct ath10k_htc *htc)
+ /* registered target arrival callback from the HIF layer */
+ int ath10k_htc_init(struct ath10k *ar)
+ {
+-	struct ath10k_hif_cb htc_callbacks;
++	static struct ath10k_hif_cb htc_callbacks = {
++		.rx_completion = ath10k_htc_rx_completion_handler,
++		.tx_completion = ath10k_htc_tx_completion_handler,
++	};
+ 	struct ath10k_htc_ep *ep = NULL;
+ 	struct ath10k_htc *htc = &ar->htc;
+ 
+@@ -841,8 +844,6 @@ int ath10k_htc_init(struct ath10k *ar)
+ 	ath10k_htc_reset_endpoint_states(htc);
+ 
+ 	/* setup HIF layer callbacks */
+-	htc_callbacks.rx_completion = ath10k_htc_rx_completion_handler;
+-	htc_callbacks.tx_completion = ath10k_htc_tx_completion_handler;
+ 	htc->ar = ar;
+ 
+ 	/* Get HIF default pipe for HTC message exchange */
+diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
+index 4716d33..a688310 100644
+--- a/drivers/net/wireless/ath/ath10k/htc.h
++++ b/drivers/net/wireless/ath/ath10k/htc.h
+@@ -271,13 +271,13 @@ enum ath10k_htc_ep_id {
+ 
+ struct ath10k_htc_ops {
+ 	void (*target_send_suspend_complete)(struct ath10k *ar);
+-};
++} __no_const;
+ 
+ struct ath10k_htc_ep_ops {
+ 	void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
+ 	void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
+ 	void (*ep_tx_credits)(struct ath10k *);
+-};
++} __no_const;
+ 
+ /* service connection information */
+ struct ath10k_htc_svc_conn_req {
+diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+index 741b38d..b7ae41b 100644
+--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+@@ -220,8 +220,8 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 	ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
+ 	ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
+ 
+-	ACCESS_ONCE(ads->ds_link) = i->link;
+-	ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
++	ACCESS_ONCE_RW(ads->ds_link) = i->link;
++	ACCESS_ONCE_RW(ads->ds_data) = i->buf_addr[0];
+ 
+ 	ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
+ 	ctl6 = SM(i->keytype, AR_EncrType);
+@@ -235,26 +235,26 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 
+ 	if ((i->is_first || i->is_last) &&
+ 	    i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
+-		ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
++		ACCESS_ONCE_RW(ads->ds_ctl2) = set11nTries(i->rates, 0)
+ 			| set11nTries(i->rates, 1)
+ 			| set11nTries(i->rates, 2)
+ 			| set11nTries(i->rates, 3)
+ 			| (i->dur_update ? AR_DurUpdateEna : 0)
+ 			| SM(0, AR_BurstDur);
+ 
+-		ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
++		ACCESS_ONCE_RW(ads->ds_ctl3) = set11nRate(i->rates, 0)
+ 			| set11nRate(i->rates, 1)
+ 			| set11nRate(i->rates, 2)
+ 			| set11nRate(i->rates, 3);
+ 	} else {
+-		ACCESS_ONCE(ads->ds_ctl2) = 0;
+-		ACCESS_ONCE(ads->ds_ctl3) = 0;
++		ACCESS_ONCE_RW(ads->ds_ctl2) = 0;
++		ACCESS_ONCE_RW(ads->ds_ctl3) = 0;
+ 	}
+ 
+ 	if (!i->is_first) {
+-		ACCESS_ONCE(ads->ds_ctl0) = 0;
+-		ACCESS_ONCE(ads->ds_ctl1) = ctl1;
+-		ACCESS_ONCE(ads->ds_ctl6) = ctl6;
++		ACCESS_ONCE_RW(ads->ds_ctl0) = 0;
++		ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
++		ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
+ 		return;
+ 	}
+ 
+@@ -279,7 +279,7 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 		break;
+ 	}
+ 
+-	ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
++	ACCESS_ONCE_RW(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
+ 		| (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
+ 		| SM(i->txpower, AR_XmitPower)
+ 		| (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
+@@ -289,19 +289,19 @@ ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 		| (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
+ 		   (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
+ 
+-	ACCESS_ONCE(ads->ds_ctl1) = ctl1;
+-	ACCESS_ONCE(ads->ds_ctl6) = ctl6;
++	ACCESS_ONCE_RW(ads->ds_ctl1) = ctl1;
++	ACCESS_ONCE_RW(ads->ds_ctl6) = ctl6;
+ 
+ 	if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
+ 		return;
+ 
+-	ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
++	ACCESS_ONCE_RW(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
+ 		| set11nPktDurRTSCTS(i->rates, 1);
+ 
+-	ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
++	ACCESS_ONCE_RW(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
+ 		| set11nPktDurRTSCTS(i->rates, 3);
+ 
+-	ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
++	ACCESS_ONCE_RW(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
+ 		| set11nRateFlags(i->rates, 1)
+ 		| set11nRateFlags(i->rates, 2)
+ 		| set11nRateFlags(i->rates, 3)
+diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+index 729ffbf..49f50e3 100644
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -39,47 +39,47 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 	      (i->qcu << AR_TxQcuNum_S) | desc_len;
+ 
+ 	checksum += val;
+-	ACCESS_ONCE(ads->info) = val;
++	ACCESS_ONCE_RW(ads->info) = val;
+ 
+ 	checksum += i->link;
+-	ACCESS_ONCE(ads->link) = i->link;
++	ACCESS_ONCE_RW(ads->link) = i->link;
+ 
+ 	checksum += i->buf_addr[0];
+-	ACCESS_ONCE(ads->data0) = i->buf_addr[0];
++	ACCESS_ONCE_RW(ads->data0) = i->buf_addr[0];
+ 	checksum += i->buf_addr[1];
+-	ACCESS_ONCE(ads->data1) = i->buf_addr[1];
++	ACCESS_ONCE_RW(ads->data1) = i->buf_addr[1];
+ 	checksum += i->buf_addr[2];
+-	ACCESS_ONCE(ads->data2) = i->buf_addr[2];
++	ACCESS_ONCE_RW(ads->data2) = i->buf_addr[2];
+ 	checksum += i->buf_addr[3];
+-	ACCESS_ONCE(ads->data3) = i->buf_addr[3];
++	ACCESS_ONCE_RW(ads->data3) = i->buf_addr[3];
+ 
+ 	checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
+-	ACCESS_ONCE(ads->ctl3) = val;
++	ACCESS_ONCE_RW(ads->ctl3) = val;
+ 	checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
+-	ACCESS_ONCE(ads->ctl5) = val;
++	ACCESS_ONCE_RW(ads->ctl5) = val;
+ 	checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
+-	ACCESS_ONCE(ads->ctl7) = val;
++	ACCESS_ONCE_RW(ads->ctl7) = val;
+ 	checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
+-	ACCESS_ONCE(ads->ctl9) = val;
++	ACCESS_ONCE_RW(ads->ctl9) = val;
+ 
+ 	checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
+-	ACCESS_ONCE(ads->ctl10) = checksum;
++	ACCESS_ONCE_RW(ads->ctl10) = checksum;
+ 
+ 	if (i->is_first || i->is_last) {
+-		ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
++		ACCESS_ONCE_RW(ads->ctl13) = set11nTries(i->rates, 0)
+ 			| set11nTries(i->rates, 1)
+ 			| set11nTries(i->rates, 2)
+ 			| set11nTries(i->rates, 3)
+ 			| (i->dur_update ? AR_DurUpdateEna : 0)
+ 			| SM(0, AR_BurstDur);
+ 
+-		ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
++		ACCESS_ONCE_RW(ads->ctl14) = set11nRate(i->rates, 0)
+ 			| set11nRate(i->rates, 1)
+ 			| set11nRate(i->rates, 2)
+ 			| set11nRate(i->rates, 3);
+ 	} else {
+-		ACCESS_ONCE(ads->ctl13) = 0;
+-		ACCESS_ONCE(ads->ctl14) = 0;
++		ACCESS_ONCE_RW(ads->ctl13) = 0;
++		ACCESS_ONCE_RW(ads->ctl14) = 0;
+ 	}
+ 
+ 	ads->ctl20 = 0;
+@@ -89,17 +89,17 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 
+ 	ctl17 = SM(i->keytype, AR_EncrType);
+ 	if (!i->is_first) {
+-		ACCESS_ONCE(ads->ctl11) = 0;
+-		ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
+-		ACCESS_ONCE(ads->ctl15) = 0;
+-		ACCESS_ONCE(ads->ctl16) = 0;
+-		ACCESS_ONCE(ads->ctl17) = ctl17;
+-		ACCESS_ONCE(ads->ctl18) = 0;
+-		ACCESS_ONCE(ads->ctl19) = 0;
++		ACCESS_ONCE_RW(ads->ctl11) = 0;
++		ACCESS_ONCE_RW(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
++		ACCESS_ONCE_RW(ads->ctl15) = 0;
++		ACCESS_ONCE_RW(ads->ctl16) = 0;
++		ACCESS_ONCE_RW(ads->ctl17) = ctl17;
++		ACCESS_ONCE_RW(ads->ctl18) = 0;
++		ACCESS_ONCE_RW(ads->ctl19) = 0;
+ 		return;
+ 	}
+ 
+-	ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
++	ACCESS_ONCE_RW(ads->ctl11) = (i->pkt_len & AR_FrameLen)
+ 		| (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
+ 		| SM(i->txpower, AR_XmitPower)
+ 		| (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
+@@ -135,22 +135,22 @@ ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ 	val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
+ 	ctl12 |= SM(val, AR_PAPRDChainMask);
+ 
+-	ACCESS_ONCE(ads->ctl12) = ctl12;
+-	ACCESS_ONCE(ads->ctl17) = ctl17;
++	ACCESS_ONCE_RW(ads->ctl12) = ctl12;
++	ACCESS_ONCE_RW(ads->ctl17) = ctl17;
+ 
+-	ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
++	ACCESS_ONCE_RW(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
+ 		| set11nPktDurRTSCTS(i->rates, 1);
+ 
+-	ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
++	ACCESS_ONCE_RW(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
+ 		| set11nPktDurRTSCTS(i->rates, 3);
+ 
+-	ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
++	ACCESS_ONCE_RW(ads->ctl18) = set11nRateFlags(i->rates, 0)
+ 		| set11nRateFlags(i->rates, 1)
+ 		| set11nRateFlags(i->rates, 2)
+ 		| set11nRateFlags(i->rates, 3)
+ 		| SM(i->rtscts_rate, AR_RTSCTSRate);
+ 
+-	ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
++	ACCESS_ONCE_RW(ads->ctl19) = AR_Not_Sounding;
+ }
+ 
+ static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
+diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
+index 32ae0a4..90fdaf5 100644
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -629,7 +629,7 @@ struct ath_hw_private_ops {
+ 
+ 	/* ANI */
+ 	void (*ani_cache_ini_regs)(struct ath_hw *ah);
+-};
++} __no_const;
+ 
+ /**
+  * struct ath_spec_scan - parameters for Atheros spectral scan
+@@ -706,7 +706,7 @@ struct ath_hw_ops {
+ #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+ 	void (*set_bt_ant_diversity)(struct ath_hw *hw, bool enable);
+ #endif
+-};
++} __no_const;
+ 
+ struct ath_nf_limits {
+ 	s16 max;
+diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
+index 92190da..f3a4c4c 100644
+--- a/drivers/net/wireless/b43/phy_lp.c
++++ b/drivers/net/wireless/b43/phy_lp.c
+@@ -2514,7 +2514,7 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
+ {
+ 	struct ssb_bus *bus = dev->dev->sdev->bus;
+ 
+-	static const struct b206x_channel *chandata = NULL;
++	const struct b206x_channel *chandata = NULL;
+ 	u32 crystal_freq = bus->chipco.pmu.crystalfreq * 1000;
+ 	u32 freqref, vco_freq, val1, val2, val3, timeout, timeoutref, count;
+ 	u16 old_comm15, scale;
+diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
+index 0487461..fd9e84a 100644
+--- a/drivers/net/wireless/iwlegacy/3945-mac.c
++++ b/drivers/net/wireless/iwlegacy/3945-mac.c
+@@ -3638,7 +3638,9 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+ 	 */
+ 	if (il3945_mod_params.disable_hw_scan) {
+ 		D_INFO("Disabling hw_scan\n");
+-		il3945_mac_ops.hw_scan = NULL;
++		pax_open_kernel();
++		*(void **)&il3945_mac_ops.hw_scan = NULL;
++		pax_close_kernel();
+ 	}
+ 
+ 	D_INFO("*** LOAD DRIVER ***\n");
+diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
+index d2fe259..0c4c682 100644
+--- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c
++++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c
+@@ -188,7 +188,7 @@ static ssize_t iwl_dbgfs_sram_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[64];
+-	int buf_size;
++	size_t buf_size;
+ 	u32 offset, len;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -458,7 +458,7 @@ static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
+ 	struct iwl_priv *priv = file->private_data;
+ 
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	u32 reset_flag;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -539,7 +539,7 @@ static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int ht40;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -591,7 +591,7 @@ static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int value;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -683,10 +683,10 @@ DEBUGFS_READ_FILE_OPS(temperature);
+ DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
+ DEBUGFS_READ_FILE_OPS(current_sleep_command);
+ 
+-static const char *fmt_value = "  %-30s %10u\n";
+-static const char *fmt_hex   = "  %-30s       0x%02X\n";
+-static const char *fmt_table = "  %-30s %10u  %10u  %10u  %10u\n";
+-static const char *fmt_header =
++static const char fmt_value[] = "  %-30s %10u\n";
++static const char fmt_hex[]   = "  %-30s       0x%02X\n";
++static const char fmt_table[] = "  %-30s %10u  %10u  %10u  %10u\n";
++static const char fmt_header[] =
+ 	"%-32s    current  cumulative       delta         max\n";
+ 
+ static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
+@@ -1856,7 +1856,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int clear;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -1901,7 +1901,7 @@ static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int trace;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -1972,7 +1972,7 @@ static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int missed;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -2013,7 +2013,7 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
+ 
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int plcp;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -2073,7 +2073,7 @@ static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
+ 
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int flush;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -2163,7 +2163,7 @@ static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
+ 
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int rts;
+ 
+ 	if (!priv->cfg->ht_params)
+@@ -2205,7 +2205,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
+ {
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 
+ 	memset(buf, 0, sizeof(buf));
+ 	buf_size = min(count, sizeof(buf) -  1);
+@@ -2239,7 +2239,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
+ 	struct iwl_priv *priv = file->private_data;
+ 	u32 event_log_flag;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 
+ 	/* check that the interface is up */
+ 	if (!iwl_is_ready(priv))
+@@ -2293,7 +2293,7 @@ static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
+ 	struct iwl_priv *priv = file->private_data;
+ 	char buf[8];
+ 	u32 calib_disabled;
+-	int buf_size;
++	size_t buf_size;
+ 
+ 	memset(buf, 0, sizeof(buf));
+ 	buf_size = min(count, sizeof(buf) - 1);
+diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
+index ea7e70c..bc0c45f 100644
+--- a/drivers/net/wireless/iwlwifi/dvm/main.c
++++ b/drivers/net/wireless/iwlwifi/dvm/main.c
+@@ -1127,7 +1127,7 @@ static void iwl_option_config(struct iwl_priv *priv)
+ static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
+ {
+ 	struct iwl_nvm_data *data = priv->nvm_data;
+-	char *debug_msg;
++	static const char debug_msg[] = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n";
+ 
+ 	if (data->sku_cap_11n_enable &&
+ 	    !priv->cfg->ht_params) {
+@@ -1141,7 +1141,6 @@ static int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
+ 		return -EINVAL;
+ 	}
+ 
+-	debug_msg = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n";
+ 	IWL_DEBUG_INFO(priv, debug_msg,
+ 		       data->sku_cap_band_24GHz_enable ? "" : "NOT", "enabled",
+ 		       data->sku_cap_band_52GHz_enable ? "" : "NOT", "enabled",
+diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
+index fb62927..2748d8c 100644
+--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
++++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
+@@ -1373,7 +1373,7 @@ static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
+ 	struct isr_statistics *isr_stats = &trans_pcie->isr_stats;
+ 
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	u32 reset_flag;
+ 
+ 	memset(buf, 0, sizeof(buf));
+@@ -1394,7 +1394,7 @@ static ssize_t iwl_dbgfs_csr_write(struct file *file,
+ {
+ 	struct iwl_trans *trans = file->private_data;
+ 	char buf[8];
+-	int buf_size;
++	size_t buf_size;
+ 	int csr;
+ 
+ 	memset(buf, 0, sizeof(buf));
+diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
+index 505ff60..6a1c9aa 100644
+--- a/drivers/net/wireless/mac80211_hwsim.c
++++ b/drivers/net/wireless/mac80211_hwsim.c
+@@ -2543,20 +2543,20 @@ static int __init init_mac80211_hwsim(void)
+ 	if (channels < 1)
+ 		return -EINVAL;
+ 
+-	mac80211_hwsim_mchan_ops = mac80211_hwsim_ops;
+-	mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
+-	mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
+-	mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
+-	mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
+-	mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
+-	mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
+-	mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
+-	mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
+-	mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
+-	mac80211_hwsim_mchan_ops.assign_vif_chanctx =
+-		mac80211_hwsim_assign_vif_chanctx;
+-	mac80211_hwsim_mchan_ops.unassign_vif_chanctx =
+-		mac80211_hwsim_unassign_vif_chanctx;
++	pax_open_kernel();
++	memcpy((void *)&mac80211_hwsim_mchan_ops, &mac80211_hwsim_ops, sizeof mac80211_hwsim_mchan_ops);
++	*(void **)&mac80211_hwsim_mchan_ops.hw_scan = mac80211_hwsim_hw_scan;
++	*(void **)&mac80211_hwsim_mchan_ops.cancel_hw_scan = mac80211_hwsim_cancel_hw_scan;
++	*(void **)&mac80211_hwsim_mchan_ops.sw_scan_start = NULL;
++	*(void **)&mac80211_hwsim_mchan_ops.sw_scan_complete = NULL;
++	*(void **)&mac80211_hwsim_mchan_ops.remain_on_channel = mac80211_hwsim_roc;
++	*(void **)&mac80211_hwsim_mchan_ops.cancel_remain_on_channel = mac80211_hwsim_croc;
++	*(void **)&mac80211_hwsim_mchan_ops.add_chanctx = mac80211_hwsim_add_chanctx;
++	*(void **)&mac80211_hwsim_mchan_ops.remove_chanctx = mac80211_hwsim_remove_chanctx;
++	*(void **)&mac80211_hwsim_mchan_ops.change_chanctx = mac80211_hwsim_change_chanctx;
++	*(void **)&mac80211_hwsim_mchan_ops.assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx;
++	*(void **)&mac80211_hwsim_mchan_ops.unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx;
++	pax_close_kernel();
+ 
+ 	spin_lock_init(&hwsim_radio_lock);
+ 	INIT_LIST_HEAD(&hwsim_radios);
+diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
+index 5028557..91cf394 100644
+--- a/drivers/net/wireless/rndis_wlan.c
++++ b/drivers/net/wireless/rndis_wlan.c
+@@ -1236,7 +1236,7 @@ static int set_rts_threshold(struct usbnet *usbdev, u32 rts_threshold)
+ 
+ 	netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold);
+ 
+-	if (rts_threshold < 0 || rts_threshold > 2347)
++	if (rts_threshold > 2347)
+ 		rts_threshold = 2347;
+ 
+ 	tmp = cpu_to_le32(rts_threshold);
+diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
+index 5d45a1a..6f5f041 100644
+--- a/drivers/net/wireless/rt2x00/rt2x00.h
++++ b/drivers/net/wireless/rt2x00/rt2x00.h
+@@ -375,7 +375,7 @@ struct rt2x00_intf {
+ 	 * for hardware which doesn't support hardware
+ 	 * sequence counting.
+ 	 */
+-	atomic_t seqno;
++	atomic_unchecked_t seqno;
+ };
+ 
+ static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
+diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
+index 22d49d5..dd5e4d7 100644
+--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
++++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
+@@ -224,9 +224,9 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
+ 	 * sequence counter given by mac80211.
+ 	 */
+ 	if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
+-		seqno = atomic_add_return(0x10, &intf->seqno);
++		seqno = atomic_add_return_unchecked(0x10, &intf->seqno);
+ 	else
+-		seqno = atomic_read(&intf->seqno);
++		seqno = atomic_read_unchecked(&intf->seqno);
+ 
+ 	hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+ 	hdr->seq_ctrl |= cpu_to_le16(seqno);
+diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
+index e2b3d9c..67a5184 100644
+--- a/drivers/net/wireless/ti/wl1251/sdio.c
++++ b/drivers/net/wireless/ti/wl1251/sdio.c
+@@ -271,13 +271,17 @@ static int wl1251_sdio_probe(struct sdio_func *func,
+ 
+ 		irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
+ 
+-		wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
+-		wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
++		pax_open_kernel();
++		*(void **)&wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
++		*(void **)&wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
++		pax_close_kernel();
+ 
+ 		wl1251_info("using dedicated interrupt line");
+ 	} else {
+-		wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
+-		wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
++		pax_open_kernel();
++		*(void **)&wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
++		*(void **)&wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
++		pax_close_kernel();
+ 
+ 		wl1251_info("using SDIO interrupt");
+ 	}
+diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
+index be7129b..4161356 100644
+--- a/drivers/net/wireless/ti/wl12xx/main.c
++++ b/drivers/net/wireless/ti/wl12xx/main.c
+@@ -656,7 +656,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
+ 		       sizeof(wl->conf.mem));
+ 
+ 		/* read data preparation is only needed by wl127x */
+-		wl->ops->prepare_read = wl127x_prepare_read;
++		pax_open_kernel();
++		*(void **)&wl->ops->prepare_read = wl127x_prepare_read;
++		pax_close_kernel();
+ 
+ 		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
+ 			      WL127X_IFTYPE_SR_VER,  WL127X_MAJOR_SR_VER,
+@@ -681,7 +683,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
+ 		       sizeof(wl->conf.mem));
+ 
+ 		/* read data preparation is only needed by wl127x */
+-		wl->ops->prepare_read = wl127x_prepare_read;
++		pax_open_kernel();
++		*(void **)&wl->ops->prepare_read = wl127x_prepare_read;
++		pax_close_kernel();
+ 
+ 		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER,
+ 			      WL127X_IFTYPE_SR_VER,  WL127X_MAJOR_SR_VER,
+diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
+index ec37b16..7e34d66 100644
+--- a/drivers/net/wireless/ti/wl18xx/main.c
++++ b/drivers/net/wireless/ti/wl18xx/main.c
+@@ -1823,8 +1823,10 @@ static int wl18xx_setup(struct wl1271 *wl)
+ 	}
+ 
+ 	if (!checksum_param) {
+-		wl18xx_ops.set_rx_csum = NULL;
+-		wl18xx_ops.init_vif = NULL;
++		pax_open_kernel();
++		*(void **)&wl18xx_ops.set_rx_csum = NULL;
++		*(void **)&wl18xx_ops.init_vif = NULL;
++		pax_close_kernel();
+ 	}
+ 
+ 	/* Enable 11a Band only if we have 5G antennas */
+diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
+index a912dc0..a8225ba 100644
+--- a/drivers/net/wireless/zd1211rw/zd_usb.c
++++ b/drivers/net/wireless/zd1211rw/zd_usb.c
+@@ -385,7 +385,7 @@ static inline void handle_regs_int(struct urb *urb)
+ {
+ 	struct zd_usb *usb = urb->context;
+ 	struct zd_usb_interrupt *intr = &usb->intr;
+-	int len;
++	unsigned int len;
+ 	u16 int_num;
+ 
+ 	ZD_ASSERT(in_interrupt());
+diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
+index 683671a..4519fc2 100644
+--- a/drivers/nfc/nfcwilink.c
++++ b/drivers/nfc/nfcwilink.c
+@@ -497,7 +497,7 @@ static struct nci_ops nfcwilink_ops = {
+ 
+ static int nfcwilink_probe(struct platform_device *pdev)
+ {
+-	static struct nfcwilink *drv;
++	struct nfcwilink *drv;
+ 	int rc;
+ 	__u32 protocols;
+ 
+diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
+index d93b2b6..ae50401 100644
+--- a/drivers/oprofile/buffer_sync.c
++++ b/drivers/oprofile/buffer_sync.c
+@@ -332,7 +332,7 @@ static void add_data(struct op_entry *entry, struct mm_struct *mm)
+ 		if (cookie == NO_COOKIE)
+ 			offset = pc;
+ 		if (cookie == INVALID_COOKIE) {
+-			atomic_inc(&oprofile_stats.sample_lost_no_mapping);
++			atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
+ 			offset = pc;
+ 		}
+ 		if (cookie != last_cookie) {
+@@ -376,14 +376,14 @@ add_sample(struct mm_struct *mm, struct op_sample *s, int in_kernel)
+ 	/* add userspace sample */
+ 
+ 	if (!mm) {
+-		atomic_inc(&oprofile_stats.sample_lost_no_mm);
++		atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm);
+ 		return 0;
+ 	}
+ 
+ 	cookie = lookup_dcookie(mm, s->eip, &offset);
+ 
+ 	if (cookie == INVALID_COOKIE) {
+-		atomic_inc(&oprofile_stats.sample_lost_no_mapping);
++		atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping);
+ 		return 0;
+ 	}
+ 
+@@ -552,7 +552,7 @@ void sync_buffer(int cpu)
+ 		/* ignore backtraces if failed to add a sample */
+ 		if (state == sb_bt_start) {
+ 			state = sb_bt_ignore;
+-			atomic_inc(&oprofile_stats.bt_lost_no_mapping);
++			atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping);
+ 		}
+ 	}
+ 	release_mm(mm);
+diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
+index c0cc4e7..44d4e54 100644
+--- a/drivers/oprofile/event_buffer.c
++++ b/drivers/oprofile/event_buffer.c
+@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value)
+ 	}
+ 
+ 	if (buffer_pos == buffer_size) {
+-		atomic_inc(&oprofile_stats.event_lost_overflow);
++		atomic_inc_unchecked(&oprofile_stats.event_lost_overflow);
+ 		return;
+ 	}
+ 
+diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
+index ed2c3ec..deda85a 100644
+--- a/drivers/oprofile/oprof.c
++++ b/drivers/oprofile/oprof.c
+@@ -110,7 +110,7 @@ static void switch_worker(struct work_struct *work)
+ 	if (oprofile_ops.switch_events())
+ 		return;
+ 
+-	atomic_inc(&oprofile_stats.multiplex_counter);
++	atomic_inc_unchecked(&oprofile_stats.multiplex_counter);
+ 	start_switch_worker();
+ }
+ 
+diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
+index ee2cfce..7f8f699 100644
+--- a/drivers/oprofile/oprofile_files.c
++++ b/drivers/oprofile/oprofile_files.c
+@@ -27,7 +27,7 @@ unsigned long oprofile_time_slice;
+ 
+ #ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
+ 
+-static ssize_t timeout_read(struct file *file, char __user *buf,
++static ssize_t __intentional_overflow(-1) timeout_read(struct file *file, char __user *buf,
+ 		size_t count, loff_t *offset)
+ {
+ 	return oprofilefs_ulong_to_user(jiffies_to_msecs(oprofile_time_slice),
+diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
+index 59659ce..6c860a0 100644
+--- a/drivers/oprofile/oprofile_stats.c
++++ b/drivers/oprofile/oprofile_stats.c
+@@ -30,11 +30,11 @@ void oprofile_reset_stats(void)
+ 		cpu_buf->sample_invalid_eip = 0;
+ 	}
+ 
+-	atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
+-	atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
+-	atomic_set(&oprofile_stats.event_lost_overflow, 0);
+-	atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
+-	atomic_set(&oprofile_stats.multiplex_counter, 0);
++	atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0);
++	atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0);
++	atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0);
++	atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0);
++	atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0);
+ }
+ 
+ 
+diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
+index 1fc622b..8c48fc3 100644
+--- a/drivers/oprofile/oprofile_stats.h
++++ b/drivers/oprofile/oprofile_stats.h
+@@ -13,11 +13,11 @@
+ #include <linux/atomic.h>
+ 
+ struct oprofile_stat_struct {
+-	atomic_t sample_lost_no_mm;
+-	atomic_t sample_lost_no_mapping;
+-	atomic_t bt_lost_no_mapping;
+-	atomic_t event_lost_overflow;
+-	atomic_t multiplex_counter;
++	atomic_unchecked_t sample_lost_no_mm;
++	atomic_unchecked_t sample_lost_no_mapping;
++	atomic_unchecked_t bt_lost_no_mapping;
++	atomic_unchecked_t event_lost_overflow;
++	atomic_unchecked_t multiplex_counter;
+ };
+ 
+ extern struct oprofile_stat_struct oprofile_stats;
+diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
+index 3f49345..c750d0b 100644
+--- a/drivers/oprofile/oprofilefs.c
++++ b/drivers/oprofile/oprofilefs.c
+@@ -176,8 +176,8 @@ int oprofilefs_create_ro_ulong(struct dentry *root,
+ 
+ static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
+ {
+-	atomic_t *val = file->private_data;
+-	return oprofilefs_ulong_to_user(atomic_read(val), buf, count, offset);
++	atomic_unchecked_t *val = file->private_data;
++	return oprofilefs_ulong_to_user(atomic_read_unchecked(val), buf, count, offset);
+ }
+ 
+ 
+@@ -189,7 +189,7 @@ static const struct file_operations atomic_ro_fops = {
+ 
+ 
+ int oprofilefs_create_ro_atomic(struct dentry *root,
+-	char const *name, atomic_t *val)
++	char const *name, atomic_unchecked_t *val)
+ {
+ 	return __oprofilefs_create_file(root, name,
+ 					&atomic_ro_fops, 0444, val);
+diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
+index 61be1d9..dec05d7 100644
+--- a/drivers/oprofile/timer_int.c
++++ b/drivers/oprofile/timer_int.c
+@@ -93,7 +93,7 @@ static int oprofile_cpu_notify(struct notifier_block *self,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata oprofile_cpu_notifier = {
++static struct notifier_block oprofile_cpu_notifier = {
+ 	.notifier_call = oprofile_cpu_notify,
+ };
+ 
+diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
+index 92ed045..62d39bd7 100644
+--- a/drivers/parport/procfs.c
++++ b/drivers/parport/procfs.c
+@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *table, int write,
+ 
+ 	*ppos += len;
+ 
+-	return copy_to_user(result, buffer, len) ? -EFAULT : 0;
++	return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0;
+ }
+ 
+ #ifdef CONFIG_PARPORT_1284
+@@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table, int write,
+ 
+ 	*ppos += len;
+ 
+-	return copy_to_user (result, buffer, len) ? -EFAULT : 0;
++	return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0;
+ }
+ #endif /* IEEE1284.3 support. */
+ 
+diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
+index 8dcccff..35d701d 100644
+--- a/drivers/pci/hotplug/acpiphp_ibm.c
++++ b/drivers/pci/hotplug/acpiphp_ibm.c
+@@ -452,7 +452,9 @@ static int __init ibm_acpiphp_init(void)
+ 		goto init_cleanup;
+ 	}
+ 
+-	ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
++	pax_open_kernel();
++	*(size_t *)&ibm_apci_table_attr.size = ibm_get_table_from_acpi(NULL);
++	pax_close_kernel();
+ 	retval = sysfs_create_bin_file(sysdir, &ibm_apci_table_attr);
+ 
+ 	return retval;
+diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
+index 7536eef..52dc8fa 100644
+--- a/drivers/pci/hotplug/cpcihp_generic.c
++++ b/drivers/pci/hotplug/cpcihp_generic.c
+@@ -73,7 +73,6 @@ static u16 port;
+ static unsigned int enum_bit;
+ static u8 enum_mask;
+ 
+-static struct cpci_hp_controller_ops generic_hpc_ops;
+ static struct cpci_hp_controller generic_hpc;
+ 
+ static int __init validate_parameters(void)
+@@ -139,6 +138,10 @@ static int query_enum(void)
+ 	return ((value & enum_mask) == enum_mask);
+ }
+ 
++static struct cpci_hp_controller_ops generic_hpc_ops = {
++	.query_enum = query_enum,
++};
++
+ static int __init cpcihp_generic_init(void)
+ {
+ 	int status;
+@@ -165,7 +168,6 @@ static int __init cpcihp_generic_init(void)
+ 	pci_dev_put(dev);
+ 
+ 	memset(&generic_hpc, 0, sizeof (struct cpci_hp_controller));
+-	generic_hpc_ops.query_enum = query_enum;
+ 	generic_hpc.ops = &generic_hpc_ops;
+ 
+ 	status = cpci_hp_register_controller(&generic_hpc);
+diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
+index e8c4a7c..7046f5c 100644
+--- a/drivers/pci/hotplug/cpcihp_zt5550.c
++++ b/drivers/pci/hotplug/cpcihp_zt5550.c
+@@ -59,7 +59,6 @@
+ /* local variables */
+ static bool debug;
+ static bool poll;
+-static struct cpci_hp_controller_ops zt5550_hpc_ops;
+ static struct cpci_hp_controller zt5550_hpc;
+ 
+ /* Primary cPCI bus bridge device */
+@@ -205,6 +204,10 @@ static int zt5550_hc_disable_irq(void)
+ 	return 0;
+ }
+ 
++static struct cpci_hp_controller_ops zt5550_hpc_ops = {
++	.query_enum = zt5550_hc_query_enum,
++};
++
+ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+ {
+ 	int status;
+@@ -216,16 +219,17 @@ static int zt5550_hc_init_one (struct pci_dev *pdev, const struct pci_device_id
+ 	dbg("returned from zt5550_hc_config");
+ 
+ 	memset(&zt5550_hpc, 0, sizeof (struct cpci_hp_controller));
+-	zt5550_hpc_ops.query_enum = zt5550_hc_query_enum;
+ 	zt5550_hpc.ops = &zt5550_hpc_ops;
+ 	if(!poll) {
+ 		zt5550_hpc.irq = hc_dev->irq;
+ 		zt5550_hpc.irq_flags = IRQF_SHARED;
+ 		zt5550_hpc.dev_id = hc_dev;
+ 
+-		zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
+-		zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
+-		zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
++		pax_open_kernel();
++		*(void **)&zt5550_hpc_ops.enable_irq = zt5550_hc_enable_irq;
++		*(void **)&zt5550_hpc_ops.disable_irq = zt5550_hc_disable_irq;
++		*(void **)&zt5550_hpc_ops.check_irq = zt5550_hc_check_irq;
++		pax_open_kernel();
+ 	} else {
+ 		info("using ENUM# polling mode");
+ 	}
+diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
+index 76ba8a1..20ca857 100644
+--- a/drivers/pci/hotplug/cpqphp_nvram.c
++++ b/drivers/pci/hotplug/cpqphp_nvram.c
+@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_start)
+ 
+ void compaq_nvram_init (void __iomem *rom_start)
+ {
++
++#ifndef CONFIG_PAX_KERNEXEC
+ 	if (rom_start) {
+ 		compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR);
+ 	}
++#endif
++
+ 	dbg("int15 entry  = %p\n", compaq_int15_entry_point);
+ 
+ 	/* initialize our int15 lock */
+diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
+index cfa92a9..29539c5 100644
+--- a/drivers/pci/hotplug/pci_hotplug_core.c
++++ b/drivers/pci/hotplug/pci_hotplug_core.c
+@@ -441,8 +441,10 @@ int __pci_hp_register(struct hotplug_slot *slot, struct pci_bus *bus,
+ 		return -EINVAL;
+ 	}
+ 
+-	slot->ops->owner = owner;
+-	slot->ops->mod_name = mod_name;
++	pax_open_kernel();
++	*(struct module **)&slot->ops->owner = owner;
++	*(const char **)&slot->ops->mod_name = mod_name;
++	pax_close_kernel();
+ 
+ 	mutex_lock(&pci_hp_mutex);
+ 	/*
+diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
+index 53b58de..4479896 100644
+--- a/drivers/pci/hotplug/pciehp_core.c
++++ b/drivers/pci/hotplug/pciehp_core.c
+@@ -92,7 +92,7 @@ static int init_slot(struct controller *ctrl)
+ 	struct slot *slot = ctrl->slot;
+ 	struct hotplug_slot *hotplug = NULL;
+ 	struct hotplug_slot_info *info = NULL;
+-	struct hotplug_slot_ops *ops = NULL;
++	hotplug_slot_ops_no_const *ops = NULL;
+ 	char name[SLOT_NAME_SIZE];
+ 	int retval = -ENOMEM;
+ 
+diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
+index ced17f2..185c792 100644
+--- a/drivers/pci/msi.c
++++ b/drivers/pci/msi.c
+@@ -524,8 +524,8 @@ static int populate_msi_sysfs(struct pci_dev *pdev)
+ {
+ 	struct attribute **msi_attrs;
+ 	struct attribute *msi_attr;
+-	struct device_attribute *msi_dev_attr;
+-	struct attribute_group *msi_irq_group;
++	device_attribute_no_const *msi_dev_attr;
++	attribute_group_no_const *msi_irq_group;
+ 	const struct attribute_group **msi_irq_groups;
+ 	struct msi_desc *entry;
+ 	int ret = -ENOMEM;
+@@ -589,7 +589,7 @@ error_attrs:
+ 	count = 0;
+ 	msi_attr = msi_attrs[count];
+ 	while (msi_attr) {
+-		msi_dev_attr = container_of(msi_attr, struct device_attribute, attr);
++		msi_dev_attr = container_of(msi_attr, device_attribute_no_const, attr);
+ 		kfree(msi_attr->name);
+ 		kfree(msi_dev_attr);
+ 		++count;
+diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
+index a943c6c..ad1a3cc 100644
+--- a/drivers/pci/pci-sysfs.c
++++ b/drivers/pci/pci-sysfs.c
+@@ -1112,7 +1112,7 @@ static int pci_create_attr(struct pci_dev *pdev, int num, int write_combine)
+ {
+ 	/* allocate attribute structure, piggyback attribute name */
+ 	int name_len = write_combine ? 13 : 10;
+-	struct bin_attribute *res_attr;
++	bin_attribute_no_const *res_attr;
+ 	int retval;
+ 
+ 	res_attr = kzalloc(sizeof(*res_attr) + name_len, GFP_ATOMIC);
+@@ -1297,7 +1297,7 @@ static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_stor
+ static int pci_create_capabilities_sysfs(struct pci_dev *dev)
+ {
+ 	int retval;
+-	struct bin_attribute *attr;
++	bin_attribute_no_const *attr;
+ 
+ 	/* If the device has VPD, try to expose it in sysfs. */
+ 	if (dev->vpd) {
+@@ -1344,7 +1344,7 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
+ {
+ 	int retval;
+ 	int rom_size = 0;
+-	struct bin_attribute *attr;
++	bin_attribute_no_const *attr;
+ 
+ 	if (!sysfs_initialized)
+ 		return -EACCES;
+diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
+index 4df38df..b6bb7fe 100644
+--- a/drivers/pci/pci.h
++++ b/drivers/pci/pci.h
+@@ -93,7 +93,7 @@ struct pci_vpd_ops {
+ struct pci_vpd {
+ 	unsigned int len;
+ 	const struct pci_vpd_ops *ops;
+-	struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
++	bin_attribute_no_const *attr; /* descriptor for sysfs VPD entry */
+ };
+ 
+ int pci_vpd_pci22_init(struct pci_dev *dev);
+diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
+index e1e7026..d28dd33 100644
+--- a/drivers/pci/pcie/aspm.c
++++ b/drivers/pci/pcie/aspm.c
+@@ -27,9 +27,9 @@
+ #define MODULE_PARAM_PREFIX "pcie_aspm."
+ 
+ /* Note: those are not register definitions */
+-#define ASPM_STATE_L0S_UP	(1)	/* Upstream direction L0s state */
+-#define ASPM_STATE_L0S_DW	(2)	/* Downstream direction L0s state */
+-#define ASPM_STATE_L1		(4)	/* L1 state */
++#define ASPM_STATE_L0S_UP	(1U)	/* Upstream direction L0s state */
++#define ASPM_STATE_L0S_DW	(2U)	/* Downstream direction L0s state */
++#define ASPM_STATE_L1		(4U)	/* L1 state */
+ #define ASPM_STATE_L0S		(ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW)
+ #define ASPM_STATE_ALL		(ASPM_STATE_L0S | ASPM_STATE_L1)
+ 
+diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
+index 0d8fdc4..271f09e 100644
+--- a/drivers/pci/pcie/portdrv_pci.c
++++ b/drivers/pci/pcie/portdrv_pci.c
+@@ -402,7 +402,7 @@ static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = {
++static const struct dmi_system_id __initconst pcie_portdrv_dmi_table[] = {
+ 	/*
+ 	 * Boxes that should not use MSI for PCIe PME signaling.
+ 	 */
+diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
+index 5b428db..553e4e3 100644
+--- a/drivers/pci/probe.c
++++ b/drivers/pci/probe.c
+@@ -175,7 +175,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
+ 	struct pci_bus_region region, inverted_region;
+ 	bool bar_too_big = false, bar_disabled = false;
+ 
+-	mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
++	mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0;
+ 
+ 	/* No printks while decoding is disabled! */
+ 	if (!dev->mmio_always_on) {
+diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
+index 46d1378..30e452b 100644
+--- a/drivers/pci/proc.c
++++ b/drivers/pci/proc.c
+@@ -434,7 +434,16 @@ static const struct file_operations proc_bus_pci_dev_operations = {
+ static int __init pci_proc_init(void)
+ {
+ 	struct pci_dev *dev = NULL;
++
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
++#endif
++#else
+ 	proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
++#endif
+ 	proc_create("devices", 0, proc_bus_pci_dir,
+ 		    &proc_bus_pci_dev_operations);
+ 	proc_initialized = 1;
+diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
+index 7f3aad0..7d604bb 100644
+--- a/drivers/platform/chrome/chromeos_laptop.c
++++ b/drivers/platform/chrome/chromeos_laptop.c
+@@ -406,7 +406,7 @@ static struct chromeos_laptop cr48 = {
+ 	.callback = chromeos_laptop_dmi_matched, \
+ 	.driver_data = (void *)&board_
+ 
+-static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = {
++static struct dmi_system_id chromeos_laptop_dmi_table[] __initconst = {
+ 	{
+ 		.ident = "Samsung Series 5 550",
+ 		.matches = {
+diff --git a/drivers/platform/chrome/chromeos_pstore.c b/drivers/platform/chrome/chromeos_pstore.c
+index e0e0e65..c086592 100644
+--- a/drivers/platform/chrome/chromeos_pstore.c
++++ b/drivers/platform/chrome/chromeos_pstore.c
+@@ -13,7 +13,7 @@
+ #include <linux/platform_device.h>
+ #include <linux/pstore_ram.h>
+ 
+-static struct dmi_system_id chromeos_pstore_dmi_table[] __initdata = {
++static const struct dmi_system_id chromeos_pstore_dmi_table[] __initconst = {
+ 	{
+ 		/*
+ 		 * Today all Chromebooks/boxes ship with GOOGLE as vendor and
+diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
+index c5e082f..d6307a0 100644
+--- a/drivers/platform/x86/asus-wmi.c
++++ b/drivers/platform/x86/asus-wmi.c
+@@ -1595,6 +1595,10 @@ static int show_dsts(struct seq_file *m, void *data)
+ 	int err;
+ 	u32 retval = -1;
+ 
++#ifdef CONFIG_GRKERNSEC_KMEM
++	return -EPERM;
++#endif
++
+ 	err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
+ 
+ 	if (err < 0)
+@@ -1611,6 +1615,10 @@ static int show_devs(struct seq_file *m, void *data)
+ 	int err;
+ 	u32 retval = -1;
+ 
++#ifdef CONFIG_GRKERNSEC_KMEM
++	return -EPERM;
++#endif
++
+ 	err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
+ 				    &retval);
+ 
+@@ -1635,6 +1643,10 @@ static int show_call(struct seq_file *m, void *data)
+ 	union acpi_object *obj;
+ 	acpi_status status;
+ 
++#ifdef CONFIG_GRKERNSEC_KMEM
++	return -EPERM;
++#endif
++
+ 	status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
+ 				     1, asus->debug.method_id,
+ 				     &input, &output);
+diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
+index 54407a8..710a989 100644
+--- a/drivers/platform/x86/compal-laptop.c
++++ b/drivers/platform/x86/compal-laptop.c
+@@ -767,7 +767,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
+ 	return 1;
+ }
+ 
+-static struct dmi_system_id __initdata compal_dmi_table[] = {
++static const struct dmi_system_id __initconst compal_dmi_table[] = {
+ 	{
+ 		.ident = "FL90/IFL90",
+ 		.matches = {
+diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c
+index 777c7e3..11dcbce 100644
+--- a/drivers/platform/x86/hdaps.c
++++ b/drivers/platform/x86/hdaps.c
+@@ -515,7 +515,7 @@ static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
+    "ThinkPad T42p", so the order of the entries matters.
+    If your ThinkPad is not recognized, please update to latest
+    BIOS. This is especially the case for some R52 ThinkPads. */
+-static struct dmi_system_id __initdata hdaps_whitelist[] = {
++static const struct dmi_system_id __initconst hdaps_whitelist[] = {
+ 	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
+ 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
+ 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
+diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c
+index 97c2be1..2ee50ce 100644
+--- a/drivers/platform/x86/ibm_rtl.c
++++ b/drivers/platform/x86/ibm_rtl.c
+@@ -227,7 +227,7 @@ static void rtl_teardown_sysfs(void) {
+ }
+ 
+ 
+-static struct dmi_system_id __initdata ibm_rtl_dmi_table[] = {
++static const struct dmi_system_id __initconst ibm_rtl_dmi_table[] = {
+ 	{                                                  \
+ 		.matches = {                               \
+ 			DMI_MATCH(DMI_SYS_VENDOR, "IBM"),  \
+diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c
+index 4bc9604..db855c0 100644
+--- a/drivers/platform/x86/intel_oaktrail.c
++++ b/drivers/platform/x86/intel_oaktrail.c
+@@ -300,7 +300,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id __initdata oaktrail_dmi_table[] = {
++static const struct dmi_system_id __initconst oaktrail_dmi_table[] = {
+ 	{
+ 		.ident = "OakTrail platform",
+ 		.matches = {
+diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
+index 62f8030..02f93f0 100644
+--- a/drivers/platform/x86/msi-laptop.c
++++ b/drivers/platform/x86/msi-laptop.c
+@@ -605,7 +605,7 @@ static int dmi_check_cb(const struct dmi_system_id *dmi)
+ 	return 1;
+ }
+ 
+-static struct dmi_system_id __initdata msi_dmi_table[] = {
++static const struct dmi_system_id __initconst msi_dmi_table[] = {
+ 	{
+ 		.ident = "MSI S270",
+ 		.matches = {
+@@ -1000,12 +1000,14 @@ static int __init load_scm_model_init(struct platform_device *sdev)
+ 
+ 	if (!quirks->ec_read_only) {
+ 		/* allow userland write sysfs file  */
+-		dev_attr_bluetooth.store = store_bluetooth;
+-		dev_attr_wlan.store = store_wlan;
+-		dev_attr_threeg.store = store_threeg;
+-		dev_attr_bluetooth.attr.mode |= S_IWUSR;
+-		dev_attr_wlan.attr.mode |= S_IWUSR;
+-		dev_attr_threeg.attr.mode |= S_IWUSR;
++		pax_open_kernel();
++		*(void **)&dev_attr_bluetooth.store = store_bluetooth;
++		*(void **)&dev_attr_wlan.store = store_wlan;
++		*(void **)&dev_attr_threeg.store = store_threeg;
++		*(umode_t *)&dev_attr_bluetooth.attr.mode |= S_IWUSR;
++		*(umode_t *)&dev_attr_wlan.attr.mode |= S_IWUSR;
++		*(umode_t *)&dev_attr_threeg.attr.mode |= S_IWUSR;
++		pax_close_kernel();
+ 	}
+ 
+ 	/* disable hardware control by fn key */
+diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
+index 70222f2..8c8ce66 100644
+--- a/drivers/platform/x86/msi-wmi.c
++++ b/drivers/platform/x86/msi-wmi.c
+@@ -183,7 +183,7 @@ static const struct backlight_ops msi_backlight_ops = {
+ static void msi_wmi_notify(u32 value, void *context)
+ {
+ 	struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+-	static struct key_entry *key;
++	struct key_entry *key;
+ 	union acpi_object *obj;
+ 	acpi_status status;
+ 
+diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
+index d1f03005..0695666 100644
+--- a/drivers/platform/x86/samsung-laptop.c
++++ b/drivers/platform/x86/samsung-laptop.c
+@@ -1435,7 +1435,7 @@ static int __init samsung_dmi_matched(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id __initdata samsung_dmi_table[] = {
++static const struct dmi_system_id __initconst samsung_dmi_table[] = {
+ 	{
+ 		.matches = {
+ 			DMI_MATCH(DMI_SYS_VENDOR,
+diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c
+index 5413f62..79b83da 100644
+--- a/drivers/platform/x86/samsung-q10.c
++++ b/drivers/platform/x86/samsung-q10.c
+@@ -102,7 +102,7 @@ static int __init dmi_check_callback(const struct dmi_system_id *id)
+ 	return 1;
+ }
+ 
+-static struct dmi_system_id __initdata samsungq10_dmi_table[] = {
++static const struct dmi_system_id __initconst samsungq10_dmi_table[] = {
+ 	{
+ 		.ident = "Samsung Q10",
+ 		.matches = {
+diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
+index 8f8551a..5961446 100644
+--- a/drivers/platform/x86/sony-laptop.c
++++ b/drivers/platform/x86/sony-laptop.c
+@@ -2451,7 +2451,7 @@ static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
+ }
+ 
+ /* High speed charging function */
+-static struct device_attribute *hsc_handle;
++static device_attribute_no_const *hsc_handle;
+ 
+ static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
+ 		struct device_attribute *attr,
+@@ -4434,7 +4434,7 @@ static struct acpi_driver sony_pic_driver = {
+ 	.drv.pm = &sony_pic_pm,
+ };
+ 
+-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
++static const struct dmi_system_id __initconst sonypi_dmi_table[] = {
+ 	{
+ 		.ident = "Sony Vaio",
+ 		.matches = {
+diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
+index e2a91c8..986cc9f 100644
+--- a/drivers/platform/x86/thinkpad_acpi.c
++++ b/drivers/platform/x86/thinkpad_acpi.c
+@@ -2094,7 +2094,7 @@ static int hotkey_mask_get(void)
+ 	return 0;
+ }
+ 
+-void static hotkey_mask_warn_incomplete_mask(void)
++static void hotkey_mask_warn_incomplete_mask(void)
+ {
+ 	/* log only what the user can fix... */
+ 	const u32 wantedmask = hotkey_driver_mask &
+@@ -2321,11 +2321,6 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
+ 	}
+ }
+ 
+-static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+-					   struct tp_nvram_state *newn,
+-					   const u32 event_mask)
+-{
+-
+ #define TPACPI_COMPARE_KEY(__scancode, __member) \
+ 	do { \
+ 		if ((event_mask & (1 << __scancode)) && \
+@@ -2339,36 +2334,42 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+ 			tpacpi_hotkey_send_key(__scancode); \
+ 	} while (0)
+ 
+-	void issue_volchange(const unsigned int oldvol,
+-			     const unsigned int newvol)
+-	{
+-		unsigned int i = oldvol;
++static void issue_volchange(const unsigned int oldvol,
++			    const unsigned int newvol,
++			    const u32 event_mask)
++{
++	unsigned int i = oldvol;
+ 
+-		while (i > newvol) {
+-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
+-			i--;
+-		}
+-		while (i < newvol) {
+-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+-			i++;
+-		}
++	while (i > newvol) {
++		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
++		i--;
+ 	}
++	while (i < newvol) {
++		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
++		i++;
++	}
++}
+ 
+-	void issue_brightnesschange(const unsigned int oldbrt,
+-				    const unsigned int newbrt)
+-	{
+-		unsigned int i = oldbrt;
++static void issue_brightnesschange(const unsigned int oldbrt,
++				   const unsigned int newbrt,
++				   const u32 event_mask)
++{
++	unsigned int i = oldbrt;
+ 
+-		while (i > newbrt) {
+-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
+-			i--;
+-		}
+-		while (i < newbrt) {
+-			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+-			i++;
+-		}
++	while (i > newbrt) {
++		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
++		i--;
++	}
++	while (i < newbrt) {
++		TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
++		i++;
+ 	}
++}
+ 
++static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
++					   struct tp_nvram_state *newn,
++					   const u32 event_mask)
++{
+ 	TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
+ 	TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
+ 	TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
+@@ -2402,7 +2403,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+ 		    oldn->volume_level != newn->volume_level) {
+ 			/* recently muted, or repeated mute keypress, or
+ 			 * multiple presses ending in mute */
+-			issue_volchange(oldn->volume_level, newn->volume_level);
++			issue_volchange(oldn->volume_level, newn->volume_level, event_mask);
+ 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
+ 		}
+ 	} else {
+@@ -2412,7 +2413,7 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+ 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
+ 		}
+ 		if (oldn->volume_level != newn->volume_level) {
+-			issue_volchange(oldn->volume_level, newn->volume_level);
++			issue_volchange(oldn->volume_level, newn->volume_level, event_mask);
+ 		} else if (oldn->volume_toggle != newn->volume_toggle) {
+ 			/* repeated vol up/down keypress at end of scale ? */
+ 			if (newn->volume_level == 0)
+@@ -2425,7 +2426,8 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+ 	/* handle brightness */
+ 	if (oldn->brightness_level != newn->brightness_level) {
+ 		issue_brightnesschange(oldn->brightness_level,
+-				       newn->brightness_level);
++				       newn->brightness_level,
++				       event_mask);
+ 	} else if (oldn->brightness_toggle != newn->brightness_toggle) {
+ 		/* repeated key presses that didn't change state */
+ 		if (newn->brightness_level == 0)
+@@ -2434,10 +2436,10 @@ static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
+ 				&& !tp_features.bright_unkfw)
+ 			TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
+ 	}
++}
+ 
+ #undef TPACPI_COMPARE_KEY
+ #undef TPACPI_MAY_SEND_KEY
+-}
+ 
+ /*
+  * Polling driver
+diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
+index 769d265..a3a05ca 100644
+--- a/drivers/pnp/pnpbios/bioscalls.c
++++ b/drivers/pnp/pnpbios/bioscalls.c
+@@ -58,7 +58,7 @@ do { \
+ 	set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \
+ } while(0)
+ 
+-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
++static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093,
+ 			(unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
+ 
+ /*
+@@ -95,7 +95,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
+ 
+ 	cpu = get_cpu();
+ 	save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8];
++
++	pax_open_kernel();
+ 	get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc;
++	pax_close_kernel();
+ 
+ 	/* On some boxes IRQ's during PnP BIOS calls are deadly.  */
+ 	spin_lock_irqsave(&pnp_bios_lock, flags);
+@@ -133,7 +136,10 @@ static inline u16 call_pnp_bios(u16 func, u16 arg1, u16 arg2, u16 arg3,
+ 			     :"memory");
+ 	spin_unlock_irqrestore(&pnp_bios_lock, flags);
+ 
++	pax_open_kernel();
+ 	get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40;
++	pax_close_kernel();
++
+ 	put_cpu();
+ 
+ 	/* If we get here and this is set then the PnP BIOS faulted on us. */
+@@ -467,7 +473,7 @@ int pnp_bios_read_escd(char *data, u32 nvram_base)
+ 	return status;
+ }
+ 
+-void pnpbios_calls_init(union pnp_bios_install_struct *header)
++void __init pnpbios_calls_init(union pnp_bios_install_struct *header)
+ {
+ 	int i;
+ 
+@@ -475,6 +481,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
+ 	pnp_bios_callpoint.offset = header->fields.pm16offset;
+ 	pnp_bios_callpoint.segment = PNP_CS16;
+ 
++	pax_open_kernel();
++
+ 	for_each_possible_cpu(i) {
+ 		struct desc_struct *gdt = get_cpu_gdt_table(i);
+ 		if (!gdt)
+@@ -486,4 +494,6 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
+ 		set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS],
+ 			 (unsigned long)__va(header->fields.pm16dseg));
+ 	}
++
++	pax_close_kernel();
+ }
+diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
+index 074569e..d807bef 100644
+--- a/drivers/pnp/pnpbios/core.c
++++ b/drivers/pnp/pnpbios/core.c
+@@ -493,7 +493,7 @@ static int __init exploding_pnp_bios(const struct dmi_system_id *d)
+ 	return 0;
+ }
+ 
+-static struct dmi_system_id pnpbios_dmi_table[] __initdata = {
++static const struct dmi_system_id pnpbios_dmi_table[] __initconst = {
+ 	{			/* PnPBIOS GPF on boot */
+ 	 .callback = exploding_pnp_bios,
+ 	 .ident = "Higraded P14H",
+diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
+index bacddd1..65ea100 100644
+--- a/drivers/pnp/resource.c
++++ b/drivers/pnp/resource.c
+@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, struct resource *res)
+ 		return 1;
+ 
+ 	/* check if the resource is valid */
+-	if (*irq < 0 || *irq > 15)
++	if (*irq > 15)
+ 		return 0;
+ 
+ 	/* check if the resource is reserved */
+@@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
+ 		return 1;
+ 
+ 	/* check if the resource is valid */
+-	if (*dma < 0 || *dma == 4 || *dma > 7)
++	if (*dma == 4 || *dma > 7)
+ 		return 0;
+ 
+ 	/* check if the resource is reserved */
+diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
+index 0c52e2a..3421ab7 100644
+--- a/drivers/power/pda_power.c
++++ b/drivers/power/pda_power.c
+@@ -37,7 +37,11 @@ static int polling;
+ 
+ #if IS_ENABLED(CONFIG_USB_PHY)
+ static struct usb_phy *transceiver;
+-static struct notifier_block otg_nb;
++static int otg_handle_notification(struct notifier_block *nb,
++		unsigned long event, void *unused);
++static struct notifier_block otg_nb = {
++	.notifier_call = otg_handle_notification
++};
+ #endif
+ 
+ static struct regulator *ac_draw;
+@@ -369,7 +373,6 @@ static int pda_power_probe(struct platform_device *pdev)
+ 
+ #if IS_ENABLED(CONFIG_USB_PHY)
+ 	if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
+-		otg_nb.notifier_call = otg_handle_notification;
+ 		ret = usb_register_notifier(transceiver, &otg_nb);
+ 		if (ret) {
+ 			dev_err(dev, "failure to register otg notifier\n");
+diff --git a/drivers/power/power_supply.h b/drivers/power/power_supply.h
+index cc439fd..8fa30df 100644
+--- a/drivers/power/power_supply.h
++++ b/drivers/power/power_supply.h
+@@ -16,12 +16,12 @@ struct power_supply;
+ 
+ #ifdef CONFIG_SYSFS
+ 
+-extern void power_supply_init_attrs(struct device_type *dev_type);
++extern void power_supply_init_attrs(void);
+ extern int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env);
+ 
+ #else
+ 
+-static inline void power_supply_init_attrs(struct device_type *dev_type) {}
++static inline void power_supply_init_attrs(void) {}
+ #define power_supply_uevent NULL
+ 
+ #endif /* CONFIG_SYSFS */
+diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
+index 2660664..75fcb04 100644
+--- a/drivers/power/power_supply_core.c
++++ b/drivers/power/power_supply_core.c
+@@ -28,7 +28,10 @@ EXPORT_SYMBOL_GPL(power_supply_class);
+ ATOMIC_NOTIFIER_HEAD(power_supply_notifier);
+ EXPORT_SYMBOL_GPL(power_supply_notifier);
+ 
+-static struct device_type power_supply_dev_type;
++extern const struct attribute_group *power_supply_attr_groups[];
++static struct device_type power_supply_dev_type = {
++	.groups = power_supply_attr_groups,
++};
+ 
+ static bool __power_supply_is_supplied_by(struct power_supply *supplier,
+ 					 struct power_supply *supply)
+@@ -628,7 +631,7 @@ static int __init power_supply_class_init(void)
+ 		return PTR_ERR(power_supply_class);
+ 
+ 	power_supply_class->dev_uevent = power_supply_uevent;
+-	power_supply_init_attrs(&power_supply_dev_type);
++	power_supply_init_attrs();
+ 
+ 	return 0;
+ }
+diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
+index 44420d1..967126e 100644
+--- a/drivers/power/power_supply_sysfs.c
++++ b/drivers/power/power_supply_sysfs.c
+@@ -230,17 +230,15 @@ static struct attribute_group power_supply_attr_group = {
+ 	.is_visible = power_supply_attr_is_visible,
+ };
+ 
+-static const struct attribute_group *power_supply_attr_groups[] = {
++const struct attribute_group *power_supply_attr_groups[] = {
+ 	&power_supply_attr_group,
+ 	NULL,
+ };
+ 
+-void power_supply_init_attrs(struct device_type *dev_type)
++void power_supply_init_attrs(void)
+ {
+ 	int i;
+ 
+-	dev_type->groups = power_supply_attr_groups;
+-
+ 	for (i = 0; i < ARRAY_SIZE(power_supply_attrs); i++)
+ 		__power_supply_attrs[i] = &power_supply_attrs[i].attr;
+ }
+diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
+index 84419af..268ede8 100644
+--- a/drivers/powercap/powercap_sys.c
++++ b/drivers/powercap/powercap_sys.c
+@@ -154,8 +154,77 @@ struct powercap_constraint_attr {
+ 	struct device_attribute name_attr;
+ };
+ 
++static ssize_t show_constraint_name(struct device *dev,
++				struct device_attribute *dev_attr,
++				char *buf);
++
+ static struct powercap_constraint_attr
+-				constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
++				constraint_attrs[MAX_CONSTRAINTS_PER_ZONE] = {
++	[0 ... MAX_CONSTRAINTS_PER_ZONE - 1] = {
++		.power_limit_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IWUSR | S_IRUGO
++			},
++			.show	= show_constraint_power_limit_uw,
++			.store	= store_constraint_power_limit_uw
++		},
++
++		.time_window_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IWUSR | S_IRUGO
++			},
++			.show	= show_constraint_time_window_us,
++			.store	= store_constraint_time_window_us
++		},
++
++		.max_power_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IRUGO
++			},
++			.show	= show_constraint_max_power_uw,
++			.store	= NULL
++		},
++
++		.min_power_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IRUGO
++			},
++			.show	= show_constraint_min_power_uw,
++			.store	= NULL
++		},
++
++		.max_time_window_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IRUGO
++			},
++			.show	= show_constraint_max_time_window_us,
++			.store	= NULL
++		},
++
++		.min_time_window_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IRUGO
++			},
++			.show	= show_constraint_min_time_window_us,
++			.store	= NULL
++		},
++
++		.name_attr = {
++			.attr = {
++				.name	= NULL,
++				.mode	= S_IRUGO
++			},
++			.show	= show_constraint_name,
++			.store	= NULL
++		}
++	}
++};
+ 
+ /* A list of powercap control_types */
+ static LIST_HEAD(powercap_cntrl_list);
+@@ -193,23 +262,16 @@ static ssize_t show_constraint_name(struct device *dev,
+ }
+ 
+ static int create_constraint_attribute(int id, const char *name,
+-				int mode,
+-				struct device_attribute *dev_attr,
+-				ssize_t (*show)(struct device *,
+-					struct device_attribute *, char *),
+-				ssize_t (*store)(struct device *,
+-					struct device_attribute *,
+-				const char *, size_t)
+-				)
++				struct device_attribute *dev_attr)
+ {
++	name = kasprintf(GFP_KERNEL, "constraint_%d_%s", id, name);
+ 
+-	dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
+-								id, name);
+-	if (!dev_attr->attr.name)
++	if (!name)
+ 		return -ENOMEM;
+-	dev_attr->attr.mode = mode;
+-	dev_attr->show = show;
+-	dev_attr->store = store;
++
++	pax_open_kernel();
++	*(const char **)&dev_attr->attr.name = name;
++	pax_close_kernel();
+ 
+ 	return 0;
+ }
+@@ -236,49 +298,31 @@ static int seed_constraint_attributes(void)
+ 
+ 	for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
+ 		ret = create_constraint_attribute(i, "power_limit_uw",
+-					S_IWUSR | S_IRUGO,
+-					&constraint_attrs[i].power_limit_attr,
+-					show_constraint_power_limit_uw,
+-					store_constraint_power_limit_uw);
++					&constraint_attrs[i].power_limit_attr);
+ 		if (ret)
+ 			goto err_alloc;
+ 		ret = create_constraint_attribute(i, "time_window_us",
+-					S_IWUSR | S_IRUGO,
+-					&constraint_attrs[i].time_window_attr,
+-					show_constraint_time_window_us,
+-					store_constraint_time_window_us);
++					&constraint_attrs[i].time_window_attr);
+ 		if (ret)
+ 			goto err_alloc;
+-		ret = create_constraint_attribute(i, "name", S_IRUGO,
+-				&constraint_attrs[i].name_attr,
+-				show_constraint_name,
+-				NULL);
++		ret = create_constraint_attribute(i, "name",
++				&constraint_attrs[i].name_attr);
+ 		if (ret)
+ 			goto err_alloc;
+-		ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
+-				&constraint_attrs[i].max_power_attr,
+-				show_constraint_max_power_uw,
+-				NULL);
++		ret = create_constraint_attribute(i, "max_power_uw",
++				&constraint_attrs[i].max_power_attr);
+ 		if (ret)
+ 			goto err_alloc;
+-		ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
+-				&constraint_attrs[i].min_power_attr,
+-				show_constraint_min_power_uw,
+-				NULL);
++		ret = create_constraint_attribute(i, "min_power_uw",
++				&constraint_attrs[i].min_power_attr);
+ 		if (ret)
+ 			goto err_alloc;
+ 		ret = create_constraint_attribute(i, "max_time_window_us",
+-				S_IRUGO,
+-				&constraint_attrs[i].max_time_window_attr,
+-				show_constraint_max_time_window_us,
+-				NULL);
++				&constraint_attrs[i].max_time_window_attr);
+ 		if (ret)
+ 			goto err_alloc;
+ 		ret = create_constraint_attribute(i, "min_time_window_us",
+-				S_IRUGO,
+-				&constraint_attrs[i].min_time_window_attr,
+-				show_constraint_min_time_window_us,
+-				NULL);
++				&constraint_attrs[i].min_time_window_attr);
+ 		if (ret)
+ 			goto err_alloc;
+ 
+@@ -378,10 +422,12 @@ static void create_power_zone_common_attributes(
+ 		power_zone->zone_dev_attrs[count++] =
+ 					&dev_attr_max_energy_range_uj.attr;
+ 	if (power_zone->ops->get_energy_uj) {
++		pax_open_kernel();
+ 		if (power_zone->ops->reset_energy_uj)
+-			dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
++			*(umode_t *)&dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
+ 		else
+-			dev_attr_energy_uj.attr.mode = S_IRUGO;
++			*(umode_t *)&dev_attr_energy_uj.attr.mode = S_IRUGO;
++		pax_close_kernel();
+ 		power_zone->zone_dev_attrs[count++] =
+ 					&dev_attr_energy_uj.attr;
+ 	}
+diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
+index 5d8d2dc..99fd3db 100644
+--- a/drivers/regulator/core.c
++++ b/drivers/regulator/core.c
+@@ -3372,7 +3372,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
+ {
+ 	const struct regulation_constraints *constraints = NULL;
+ 	const struct regulator_init_data *init_data;
+-	static atomic_t regulator_no = ATOMIC_INIT(0);
++	static atomic_unchecked_t regulator_no = ATOMIC_INIT(0);
+ 	struct regulator_dev *rdev;
+ 	struct device *dev;
+ 	int ret, i;
+@@ -3442,7 +3442,7 @@ regulator_register(const struct regulator_desc *regulator_desc,
+ 	rdev->dev.of_node = config->of_node;
+ 	rdev->dev.parent = dev;
+ 	dev_set_name(&rdev->dev, "regulator.%d",
+-		     atomic_inc_return(&regulator_no) - 1);
++		     atomic_inc_return_unchecked(&regulator_no) - 1);
+ 	ret = device_register(&rdev->dev);
+ 	if (ret != 0) {
+ 		put_device(&rdev->dev);
+diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
+index 8d94d3d..653b623 100644
+--- a/drivers/regulator/max8660.c
++++ b/drivers/regulator/max8660.c
+@@ -420,8 +420,10 @@ static int max8660_probe(struct i2c_client *client,
+ 		max8660->shadow_regs[MAX8660_OVER1] = 5;
+ 	} else {
+ 		/* Otherwise devices can be toggled via software */
+-		max8660_dcdc_ops.enable = max8660_dcdc_enable;
+-		max8660_dcdc_ops.disable = max8660_dcdc_disable;
++		pax_open_kernel();
++		*(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable;
++		*(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable;
++		pax_close_kernel();
+ 	}
+ 
+ 	/*
+diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
+index 892aa1e..ebd1b9c 100644
+--- a/drivers/regulator/max8973-regulator.c
++++ b/drivers/regulator/max8973-regulator.c
+@@ -406,9 +406,11 @@ static int max8973_probe(struct i2c_client *client,
+ 	if (!pdata || !pdata->enable_ext_control) {
+ 		max->desc.enable_reg = MAX8973_VOUT;
+ 		max->desc.enable_mask = MAX8973_VOUT_ENABLE;
+-		max->ops.enable = regulator_enable_regmap;
+-		max->ops.disable = regulator_disable_regmap;
+-		max->ops.is_enabled = regulator_is_enabled_regmap;
++		pax_open_kernel();
++		*(void **)&max->ops.enable = regulator_enable_regmap;
++		*(void **)&max->ops.disable = regulator_disable_regmap;
++		*(void **)&max->ops.is_enabled = regulator_is_enabled_regmap;
++		pax_close_kernel();
+ 	}
+ 
+ 	if (pdata) {
+diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
+index f374fa5..26f0683 100644
+--- a/drivers/regulator/mc13892-regulator.c
++++ b/drivers/regulator/mc13892-regulator.c
+@@ -582,10 +582,12 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
+ 	}
+ 	mc13xxx_unlock(mc13892);
+ 
+-	mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
++	pax_open_kernel();
++	*(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
+ 		= mc13892_vcam_set_mode;
+-	mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
++	*(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
+ 		= mc13892_vcam_get_mode;
++	pax_close_kernel();
+ 
+ 	mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
+ 					ARRAY_SIZE(mc13892_regulators));
+diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
+index cae212f..58a3980 100644
+--- a/drivers/rtc/rtc-cmos.c
++++ b/drivers/rtc/rtc-cmos.c
+@@ -777,7 +777,9 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
+ 	hpet_rtc_timer_init();
+ 
+ 	/* export at least the first block of NVRAM */
+-	nvram.size = address_space - NVRAM_OFFSET;
++	pax_open_kernel();
++	*(size_t *)&nvram.size = address_space - NVRAM_OFFSET;
++	pax_close_kernel();
+ 	retval = sysfs_create_bin_file(&dev->kobj, &nvram);
+ 	if (retval < 0) {
+ 		dev_dbg(dev, "can't create nvram file? %d\n", retval);
+diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c
+index d049393..bb20be0 100644
+--- a/drivers/rtc/rtc-dev.c
++++ b/drivers/rtc/rtc-dev.c
+@@ -16,6 +16,7 @@
+ #include <linux/module.h>
+ #include <linux/rtc.h>
+ #include <linux/sched.h>
++#include <linux/grsecurity.h>
+ #include "rtc-core.h"
+ 
+ static dev_t rtc_devt;
+@@ -347,6 +348,8 @@ static long rtc_dev_ioctl(struct file *file,
+ 		if (copy_from_user(&tm, uarg, sizeof(tm)))
+ 			return -EFAULT;
+ 
++		gr_log_timechange();
++
+ 		return rtc_set_time(rtc, &tm);
+ 
+ 	case RTC_PIE_ON:
+diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
+index 4e75345..09f8663 100644
+--- a/drivers/rtc/rtc-ds1307.c
++++ b/drivers/rtc/rtc-ds1307.c
+@@ -107,7 +107,7 @@ struct ds1307 {
+ 	u8			offset; /* register's offset */
+ 	u8			regs[11];
+ 	u16			nvram_offset;
+-	struct bin_attribute	*nvram;
++	bin_attribute_no_const	*nvram;
+ 	enum ds_type		type;
+ 	unsigned long		flags;
+ #define HAS_NVRAM	0		/* bit 0 == sysfs file active */
+diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
+index 11880c1..b823aa4 100644
+--- a/drivers/rtc/rtc-m48t59.c
++++ b/drivers/rtc/rtc-m48t59.c
+@@ -483,7 +483,9 @@ static int m48t59_rtc_probe(struct platform_device *pdev)
+ 	if (IS_ERR(m48t59->rtc))
+ 		return PTR_ERR(m48t59->rtc);
+ 
+-	m48t59_nvram_attr.size = pdata->offset;
++	pax_open_kernel();
++	*(size_t *)&m48t59_nvram_attr.size = pdata->offset;
++	pax_close_kernel();
+ 
+ 	ret = sysfs_create_bin_file(&pdev->dev.kobj, &m48t59_nvram_attr);
+ 	if (ret)
+diff --git a/drivers/scsi/aic7xxx/aic79xx_pci.c b/drivers/scsi/aic7xxx/aic79xx_pci.c
+index 14b5f8d..cc9bd26 100644
+--- a/drivers/scsi/aic7xxx/aic79xx_pci.c
++++ b/drivers/scsi/aic7xxx/aic79xx_pci.c
+@@ -827,7 +827,7 @@ ahd_pci_intr(struct ahd_softc *ahd)
+ 		for (bit = 0; bit < 8; bit++) {
+ 
+ 			if ((pci_status[i] & (0x1 << bit)) != 0) {
+-				static const char *s;
++				const char *s;
+ 
+ 				s = pci_status_strings[bit];
+ 				if (i == 7/*TARG*/ && bit == 3)
+@@ -887,23 +887,15 @@ ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat)
+ 
+ 		for (bit = 0; bit < 8; bit++) {
+ 
+-			if ((split_status[i] & (0x1 << bit)) != 0) {
+-				static const char *s;
+-
+-				s = split_status_strings[bit];
+-				printk(s, ahd_name(ahd),
++			if ((split_status[i] & (0x1 << bit)) != 0)
++				printk(split_status_strings[bit], ahd_name(ahd),
+ 				       split_status_source[i]);
+-			}
+ 
+ 			if (i > 1)
+ 				continue;
+ 
+-			if ((sg_split_status[i] & (0x1 << bit)) != 0) {
+-				static const char *s;
+-
+-				s = split_status_strings[bit];
+-				printk(s, ahd_name(ahd), "SG");
+-			}
++			if ((sg_split_status[i] & (0x1 << bit)) != 0)
++				printk(split_status_strings[bit], ahd_name(ahd), "SG");
+ 		}
+ 	}
+ 	/*
+diff --git a/drivers/scsi/bfa/bfa_fcpim.h b/drivers/scsi/bfa/bfa_fcpim.h
+index e693af6..2e525b6 100644
+--- a/drivers/scsi/bfa/bfa_fcpim.h
++++ b/drivers/scsi/bfa/bfa_fcpim.h
+@@ -36,7 +36,7 @@ struct bfa_iotag_s {
+ 
+ struct bfa_itn_s {
+ 	bfa_isr_func_t isr;
+-};
++} __no_const;
+ 
+ void bfa_itn_create(struct bfa_s *bfa, struct bfa_rport_s *rport,
+ 		void (*isr)(struct bfa_s *bfa, struct bfi_msg_s *m));
+diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
+index a3ab5cc..8143622 100644
+--- a/drivers/scsi/bfa/bfa_fcs.c
++++ b/drivers/scsi/bfa/bfa_fcs.c
+@@ -38,10 +38,21 @@ struct bfa_fcs_mod_s {
+ #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
+ 
+ static struct bfa_fcs_mod_s fcs_modules[] = {
+-	{ bfa_fcs_port_attach, NULL, NULL },
+-	{ bfa_fcs_uf_attach, NULL, NULL },
+-	{ bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
+-	  bfa_fcs_fabric_modexit },
++	{
++		.attach = bfa_fcs_port_attach,
++		.modinit = NULL,
++		.modexit = NULL
++	},
++	{
++		.attach = bfa_fcs_uf_attach,
++		.modinit = NULL,
++		.modexit = NULL
++	},
++	{
++		.attach = bfa_fcs_fabric_attach,
++		.modinit = bfa_fcs_fabric_modinit,
++		.modexit = bfa_fcs_fabric_modexit
++	},
+ };
+ 
+ /*
+diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
+index ff75ef8..2dfe00a 100644
+--- a/drivers/scsi/bfa/bfa_fcs_lport.c
++++ b/drivers/scsi/bfa/bfa_fcs_lport.c
+@@ -89,15 +89,26 @@ static struct {
+ 	void		(*offline) (struct bfa_fcs_lport_s *port);
+ } __port_action[] = {
+ 	{
+-	bfa_fcs_lport_unknown_init, bfa_fcs_lport_unknown_online,
+-			bfa_fcs_lport_unknown_offline}, {
+-	bfa_fcs_lport_fab_init, bfa_fcs_lport_fab_online,
+-			bfa_fcs_lport_fab_offline}, {
+-	bfa_fcs_lport_n2n_init, bfa_fcs_lport_n2n_online,
+-			bfa_fcs_lport_n2n_offline}, {
+-	bfa_fcs_lport_loop_init, bfa_fcs_lport_loop_online,
+-			bfa_fcs_lport_loop_offline},
+-	};
++		.init = bfa_fcs_lport_unknown_init,
++		.online = bfa_fcs_lport_unknown_online,
++		.offline = bfa_fcs_lport_unknown_offline
++	},
++	{
++		.init = bfa_fcs_lport_fab_init,
++		.online = bfa_fcs_lport_fab_online,
++		.offline = bfa_fcs_lport_fab_offline
++	},
++	{
++		.init = bfa_fcs_lport_n2n_init,
++		.online = bfa_fcs_lport_n2n_online,
++		.offline = bfa_fcs_lport_n2n_offline
++	},
++	{
++		.init = bfa_fcs_lport_loop_init,
++		.online = bfa_fcs_lport_loop_online,
++		.offline = bfa_fcs_lport_loop_offline
++	},
++};
+ 
+ /*
+  *  fcs_port_sm FCS logical port state machine
+diff --git a/drivers/scsi/bfa/bfa_ioc.h b/drivers/scsi/bfa/bfa_ioc.h
+index a38aafa0..fe8f03b 100644
+--- a/drivers/scsi/bfa/bfa_ioc.h
++++ b/drivers/scsi/bfa/bfa_ioc.h
+@@ -258,7 +258,7 @@ struct bfa_ioc_cbfn_s {
+ 	bfa_ioc_disable_cbfn_t	disable_cbfn;
+ 	bfa_ioc_hbfail_cbfn_t	hbfail_cbfn;
+ 	bfa_ioc_reset_cbfn_t	reset_cbfn;
+-};
++} __no_const;
+ 
+ /*
+  * IOC event notification mechanism.
+@@ -352,7 +352,7 @@ struct bfa_ioc_hwif_s {
+ 	void		(*ioc_set_alt_fwstate)	(struct bfa_ioc_s *ioc,
+ 					enum bfi_ioc_state fwstate);
+ 	enum bfi_ioc_state	(*ioc_get_alt_fwstate)	(struct bfa_ioc_s *ioc);
+-};
++} __no_const;
+ 
+ /*
+  * Queue element to wait for room in request queue. FIFO order is
+diff --git a/drivers/scsi/bfa/bfa_modules.h b/drivers/scsi/bfa/bfa_modules.h
+index a14c784..6de6790 100644
+--- a/drivers/scsi/bfa/bfa_modules.h
++++ b/drivers/scsi/bfa/bfa_modules.h
+@@ -78,12 +78,12 @@ enum {
+ 									\
+ 	extern struct bfa_module_s hal_mod_ ## __mod;			\
+ 	struct bfa_module_s hal_mod_ ## __mod = {			\
+-		bfa_ ## __mod ## _meminfo,				\
+-		bfa_ ## __mod ## _attach,				\
+-		bfa_ ## __mod ## _detach,				\
+-		bfa_ ## __mod ## _start,				\
+-		bfa_ ## __mod ## _stop,					\
+-		bfa_ ## __mod ## _iocdisable,				\
++		.meminfo = bfa_ ## __mod ## _meminfo,			\
++		.attach = bfa_ ## __mod ## _attach,			\
++		.detach = bfa_ ## __mod ## _detach,			\
++		.start = bfa_ ## __mod ## _start,			\
++		.stop = bfa_ ## __mod ## _stop,				\
++		.iocdisable = bfa_ ## __mod ## _iocdisable,		\
+ 	}
+ 
+ #define BFA_CACHELINE_SZ	(256)
+diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
+index 045c4e1..13de803 100644
+--- a/drivers/scsi/fcoe/fcoe_sysfs.c
++++ b/drivers/scsi/fcoe/fcoe_sysfs.c
+@@ -33,8 +33,8 @@
+  */
+ #include "libfcoe.h"
+ 
+-static atomic_t ctlr_num;
+-static atomic_t fcf_num;
++static atomic_unchecked_t ctlr_num;
++static atomic_unchecked_t fcf_num;
+ 
+ /*
+  * fcoe_fcf_dev_loss_tmo: the default number of seconds that fcoe sysfs
+@@ -685,7 +685,7 @@ struct fcoe_ctlr_device *fcoe_ctlr_device_add(struct device *parent,
+ 	if (!ctlr)
+ 		goto out;
+ 
+-	ctlr->id = atomic_inc_return(&ctlr_num) - 1;
++	ctlr->id = atomic_inc_return_unchecked(&ctlr_num) - 1;
+ 	ctlr->f = f;
+ 	ctlr->mode = FIP_CONN_TYPE_FABRIC;
+ 	INIT_LIST_HEAD(&ctlr->fcfs);
+@@ -902,7 +902,7 @@ struct fcoe_fcf_device *fcoe_fcf_device_add(struct fcoe_ctlr_device *ctlr,
+ 	fcf->dev.parent = &ctlr->dev;
+ 	fcf->dev.bus = &fcoe_bus_type;
+ 	fcf->dev.type = &fcoe_fcf_device_type;
+-	fcf->id = atomic_inc_return(&fcf_num) - 1;
++	fcf->id = atomic_inc_return_unchecked(&fcf_num) - 1;
+ 	fcf->state = FCOE_FCF_STATE_UNKNOWN;
+ 
+ 	fcf->dev_loss_tmo = ctlr->fcf_dev_loss_tmo;
+@@ -938,8 +938,8 @@ int __init fcoe_sysfs_setup(void)
+ {
+ 	int error;
+ 
+-	atomic_set(&ctlr_num, 0);
+-	atomic_set(&fcf_num, 0);
++	atomic_set_unchecked(&ctlr_num, 0);
++	atomic_set_unchecked(&fcf_num, 0);
+ 
+ 	error = bus_register(&fcoe_bus_type);
+ 	if (error)
+diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
+index f28ea07..34b16d3 100644
+--- a/drivers/scsi/hosts.c
++++ b/drivers/scsi/hosts.c
+@@ -42,7 +42,7 @@
+ #include "scsi_logging.h"
+ 
+ 
+-static atomic_t scsi_host_next_hn = ATOMIC_INIT(0);	/* host_no for next new host */
++static atomic_unchecked_t scsi_host_next_hn = ATOMIC_INIT(0);	/* host_no for next new host */
+ 
+ 
+ static void scsi_host_cls_release(struct device *dev)
+@@ -369,7 +369,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
+ 	 * subtract one because we increment first then return, but we need to
+ 	 * know what the next host number was before increment
+ 	 */
+-	shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
++	shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1;
+ 	shost->dma_channel = 0xff;
+ 
+ 	/* These three are default values which can be overridden */
+diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
+index 528bff5..84963854 100644
+--- a/drivers/scsi/hpsa.c
++++ b/drivers/scsi/hpsa.c
+@@ -571,7 +571,7 @@ static inline u32 next_command(struct ctlr_info *h, u8 q)
+ 	unsigned long flags;
+ 
+ 	if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant)))
+-		return h->access.command_completed(h, q);
++		return h->access->command_completed(h, q);
+ 
+ 	if ((rq->head[rq->current_entry] & 1) == rq->wraparound) {
+ 		a = rq->head[rq->current_entry];
+@@ -3474,7 +3474,7 @@ static void start_io(struct ctlr_info *h)
+ 	while (!list_empty(&h->reqQ)) {
+ 		c = list_entry(h->reqQ.next, struct CommandList, list);
+ 		/* can't do anything if fifo is full */
+-		if ((h->access.fifo_full(h))) {
++		if ((h->access->fifo_full(h))) {
+ 			h->fifo_recently_full = 1;
+ 			dev_warn(&h->pdev->dev, "fifo full\n");
+ 			break;
+@@ -3498,7 +3498,7 @@ static void start_io(struct ctlr_info *h)
+ 
+ 		/* Tell the controller execute command */
+ 		spin_unlock_irqrestore(&h->lock, flags);
+-		h->access.submit_command(h, c);
++		h->access->submit_command(h, c);
+ 		spin_lock_irqsave(&h->lock, flags);
+ 	}
+ 	spin_unlock_irqrestore(&h->lock, flags);
+@@ -3506,17 +3506,17 @@ static void start_io(struct ctlr_info *h)
+ 
+ static inline unsigned long get_next_completion(struct ctlr_info *h, u8 q)
+ {
+-	return h->access.command_completed(h, q);
++	return h->access->command_completed(h, q);
+ }
+ 
+ static inline bool interrupt_pending(struct ctlr_info *h)
+ {
+-	return h->access.intr_pending(h);
++	return h->access->intr_pending(h);
+ }
+ 
+ static inline long interrupt_not_for_us(struct ctlr_info *h)
+ {
+-	return (h->access.intr_pending(h) == 0) ||
++	return (h->access->intr_pending(h) == 0) ||
+ 		(h->interrupts_enabled == 0);
+ }
+ 
+@@ -4442,7 +4442,7 @@ static int hpsa_pci_init(struct ctlr_info *h)
+ 	if (prod_index < 0)
+ 		return -ENODEV;
+ 	h->product_name = products[prod_index].product_name;
+-	h->access = *(products[prod_index].access);
++	h->access = products[prod_index].access;
+ 
+ 	pci_disable_link_state(h->pdev, PCIE_LINK_STATE_L0S |
+ 			       PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
+@@ -4712,7 +4712,7 @@ static void controller_lockup_detected(struct ctlr_info *h)
+ {
+ 	unsigned long flags;
+ 
+-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
++	h->access->set_intr_mask(h, HPSA_INTR_OFF);
+ 	spin_lock_irqsave(&h->lock, flags);
+ 	h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
+ 	spin_unlock_irqrestore(&h->lock, flags);
+@@ -4843,7 +4843,7 @@ reinit_after_soft_reset:
+ 	}
+ 
+ 	/* make sure the board interrupts are off */
+-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
++	h->access->set_intr_mask(h, HPSA_INTR_OFF);
+ 
+ 	if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx))
+ 		goto clean2;
+@@ -4877,7 +4877,7 @@ reinit_after_soft_reset:
+ 		 * fake ones to scoop up any residual completions.
+ 		 */
+ 		spin_lock_irqsave(&h->lock, flags);
+-		h->access.set_intr_mask(h, HPSA_INTR_OFF);
++		h->access->set_intr_mask(h, HPSA_INTR_OFF);
+ 		spin_unlock_irqrestore(&h->lock, flags);
+ 		free_irqs(h);
+ 		rc = hpsa_request_irq(h, hpsa_msix_discard_completions,
+@@ -4896,9 +4896,9 @@ reinit_after_soft_reset:
+ 		dev_info(&h->pdev->dev, "Board READY.\n");
+ 		dev_info(&h->pdev->dev,
+ 			"Waiting for stale completions to drain.\n");
+-		h->access.set_intr_mask(h, HPSA_INTR_ON);
++		h->access->set_intr_mask(h, HPSA_INTR_ON);
+ 		msleep(10000);
+-		h->access.set_intr_mask(h, HPSA_INTR_OFF);
++		h->access->set_intr_mask(h, HPSA_INTR_OFF);
+ 
+ 		rc = controller_reset_failed(h->cfgtable);
+ 		if (rc)
+@@ -4919,7 +4919,7 @@ reinit_after_soft_reset:
+ 	}
+ 
+ 	/* Turn the interrupts on so we can service requests */
+-	h->access.set_intr_mask(h, HPSA_INTR_ON);
++	h->access->set_intr_mask(h, HPSA_INTR_ON);
+ 
+ 	hpsa_hba_inquiry(h);
+ 	hpsa_register_scsi(h);	/* hook ourselves into SCSI subsystem */
+@@ -4988,7 +4988,7 @@ static void hpsa_shutdown(struct pci_dev *pdev)
+ 	 * To write all data in the battery backed cache to disks
+ 	 */
+ 	hpsa_flush_cache(h);
+-	h->access.set_intr_mask(h, HPSA_INTR_OFF);
++	h->access->set_intr_mask(h, HPSA_INTR_OFF);
+ 	hpsa_free_irqs_and_disable_msix(h);
+ }
+ 
+@@ -5162,7 +5162,7 @@ static void hpsa_enter_performant_mode(struct ctlr_info *h, u32 use_short_tags)
+ 		return;
+ 	}
+ 	/* Change the access methods to the performant access methods */
+-	h->access = SA5_performant_access;
++	h->access = &SA5_performant_access;
+ 	h->transMethod = CFGTBL_Trans_Performant;
+ }
+ 
+diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
+index 01c3283..4655219 100644
+--- a/drivers/scsi/hpsa.h
++++ b/drivers/scsi/hpsa.h
+@@ -79,7 +79,7 @@ struct ctlr_info {
+ 	unsigned int msix_vector;
+ 	unsigned int msi_vector;
+ 	int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */
+-	struct access_method access;
++	struct access_method *access;
+ 
+ 	/* queue and queue Info */
+ 	struct list_head reqQ;
+@@ -388,19 +388,19 @@ static bool SA5_performant_intr_pending(struct ctlr_info *h)
+ }
+ 
+ static struct access_method SA5_access = {
+-	SA5_submit_command,
+-	SA5_intr_mask,
+-	SA5_fifo_full,
+-	SA5_intr_pending,
+-	SA5_completed,
++	.submit_command = SA5_submit_command,
++	.set_intr_mask = SA5_intr_mask,
++	.fifo_full = SA5_fifo_full,
++	.intr_pending = SA5_intr_pending,
++	.command_completed = SA5_completed,
+ };
+ 
+ static struct access_method SA5_performant_access = {
+-	SA5_submit_command,
+-	SA5_performant_intr_mask,
+-	SA5_fifo_full,
+-	SA5_performant_intr_pending,
+-	SA5_performant_completed,
++	.submit_command = SA5_submit_command,
++	.set_intr_mask = SA5_performant_intr_mask,
++	.fifo_full = SA5_fifo_full,
++	.intr_pending = SA5_performant_intr_pending,
++	.command_completed = SA5_performant_completed,
+ };
+ 
+ struct board_type {
+diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
+index 1b3a094..068e683 100644
+--- a/drivers/scsi/libfc/fc_exch.c
++++ b/drivers/scsi/libfc/fc_exch.c
+@@ -101,12 +101,12 @@ struct fc_exch_mgr {
+ 	u16		pool_max_index;
+ 
+ 	struct {
+-		atomic_t no_free_exch;
+-		atomic_t no_free_exch_xid;
+-		atomic_t xid_not_found;
+-		atomic_t xid_busy;
+-		atomic_t seq_not_found;
+-		atomic_t non_bls_resp;
++		atomic_unchecked_t no_free_exch;
++		atomic_unchecked_t no_free_exch_xid;
++		atomic_unchecked_t xid_not_found;
++		atomic_unchecked_t xid_busy;
++		atomic_unchecked_t seq_not_found;
++		atomic_unchecked_t non_bls_resp;
+ 	} stats;
+ };
+ 
+@@ -811,7 +811,7 @@ static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,
+ 	/* allocate memory for exchange */
+ 	ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC);
+ 	if (!ep) {
+-		atomic_inc(&mp->stats.no_free_exch);
++		atomic_inc_unchecked(&mp->stats.no_free_exch);
+ 		goto out;
+ 	}
+ 	memset(ep, 0, sizeof(*ep));
+@@ -874,7 +874,7 @@ out:
+ 	return ep;
+ err:
+ 	spin_unlock_bh(&pool->lock);
+-	atomic_inc(&mp->stats.no_free_exch_xid);
++	atomic_inc_unchecked(&mp->stats.no_free_exch_xid);
+ 	mempool_free(ep, mp->ep_pool);
+ 	return NULL;
+ }
+@@ -1023,7 +1023,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
+ 		xid = ntohs(fh->fh_ox_id);	/* we originated exch */
+ 		ep = fc_exch_find(mp, xid);
+ 		if (!ep) {
+-			atomic_inc(&mp->stats.xid_not_found);
++			atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 			reject = FC_RJT_OX_ID;
+ 			goto out;
+ 		}
+@@ -1053,7 +1053,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
+ 		ep = fc_exch_find(mp, xid);
+ 		if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) {
+ 			if (ep) {
+-				atomic_inc(&mp->stats.xid_busy);
++				atomic_inc_unchecked(&mp->stats.xid_busy);
+ 				reject = FC_RJT_RX_ID;
+ 				goto rel;
+ 			}
+@@ -1064,7 +1064,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
+ 			}
+ 			xid = ep->xid;	/* get our XID */
+ 		} else if (!ep) {
+-			atomic_inc(&mp->stats.xid_not_found);
++			atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 			reject = FC_RJT_RX_ID;	/* XID not found */
+ 			goto out;
+ 		}
+@@ -1082,7 +1082,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
+ 	} else {
+ 		sp = &ep->seq;
+ 		if (sp->id != fh->fh_seq_id) {
+-			atomic_inc(&mp->stats.seq_not_found);
++			atomic_inc_unchecked(&mp->stats.seq_not_found);
+ 			if (f_ctl & FC_FC_END_SEQ) {
+ 				/*
+ 				 * Update sequence_id based on incoming last
+@@ -1533,22 +1533,22 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
+ 
+ 	ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
+ 	if (!ep) {
+-		atomic_inc(&mp->stats.xid_not_found);
++		atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 		goto out;
+ 	}
+ 	if (ep->esb_stat & ESB_ST_COMPLETE) {
+-		atomic_inc(&mp->stats.xid_not_found);
++		atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 		goto rel;
+ 	}
+ 	if (ep->rxid == FC_XID_UNKNOWN)
+ 		ep->rxid = ntohs(fh->fh_rx_id);
+ 	if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) {
+-		atomic_inc(&mp->stats.xid_not_found);
++		atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 		goto rel;
+ 	}
+ 	if (ep->did != ntoh24(fh->fh_s_id) &&
+ 	    ep->did != FC_FID_FLOGI) {
+-		atomic_inc(&mp->stats.xid_not_found);
++		atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 		goto rel;
+ 	}
+ 	sof = fr_sof(fp);
+@@ -1557,7 +1557,7 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
+ 		sp->ssb_stat |= SSB_ST_RESP;
+ 		sp->id = fh->fh_seq_id;
+ 	} else if (sp->id != fh->fh_seq_id) {
+-		atomic_inc(&mp->stats.seq_not_found);
++		atomic_inc_unchecked(&mp->stats.seq_not_found);
+ 		goto rel;
+ 	}
+ 
+@@ -1619,9 +1619,9 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
+ 	sp = fc_seq_lookup_orig(mp, fp);	/* doesn't hold sequence */
+ 
+ 	if (!sp)
+-		atomic_inc(&mp->stats.xid_not_found);
++		atomic_inc_unchecked(&mp->stats.xid_not_found);
+ 	else
+-		atomic_inc(&mp->stats.non_bls_resp);
++		atomic_inc_unchecked(&mp->stats.non_bls_resp);
+ 
+ 	fc_frame_free(fp);
+ }
+@@ -2261,13 +2261,13 @@ void fc_exch_update_stats(struct fc_lport *lport)
+ 
+ 	list_for_each_entry(ema, &lport->ema_list, ema_list) {
+ 		mp = ema->mp;
+-		st->fc_no_free_exch += atomic_read(&mp->stats.no_free_exch);
++		st->fc_no_free_exch += atomic_read_unchecked(&mp->stats.no_free_exch);
+ 		st->fc_no_free_exch_xid +=
+-				atomic_read(&mp->stats.no_free_exch_xid);
+-		st->fc_xid_not_found += atomic_read(&mp->stats.xid_not_found);
+-		st->fc_xid_busy += atomic_read(&mp->stats.xid_busy);
+-		st->fc_seq_not_found += atomic_read(&mp->stats.seq_not_found);
+-		st->fc_non_bls_resp += atomic_read(&mp->stats.non_bls_resp);
++				atomic_read_unchecked(&mp->stats.no_free_exch_xid);
++		st->fc_xid_not_found += atomic_read_unchecked(&mp->stats.xid_not_found);
++		st->fc_xid_busy += atomic_read_unchecked(&mp->stats.xid_busy);
++		st->fc_seq_not_found += atomic_read_unchecked(&mp->stats.seq_not_found);
++		st->fc_non_bls_resp += atomic_read_unchecked(&mp->stats.non_bls_resp);
+ 	}
+ }
+ EXPORT_SYMBOL(fc_exch_update_stats);
+diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
+index d289583..b745eec 100644
+--- a/drivers/scsi/libsas/sas_ata.c
++++ b/drivers/scsi/libsas/sas_ata.c
+@@ -554,7 +554,7 @@ static struct ata_port_operations sas_sata_ops = {
+ 	.postreset		= ata_std_postreset,
+ 	.error_handler		= ata_std_error_handler,
+ 	.post_internal_cmd	= sas_ata_post_internal,
+-	.qc_defer               = ata_std_qc_defer,
++	.qc_defer		= ata_std_qc_defer,
+ 	.qc_prep		= ata_noop_qc_prep,
+ 	.qc_issue		= sas_ata_qc_issue,
+ 	.qc_fill_rtf		= sas_ata_qc_fill_rtf,
+diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
+index 4e1b75c..0bbdfa9 100644
+--- a/drivers/scsi/lpfc/lpfc.h
++++ b/drivers/scsi/lpfc/lpfc.h
+@@ -432,7 +432,7 @@ struct lpfc_vport {
+ 	struct dentry *debug_nodelist;
+ 	struct dentry *vport_debugfs_root;
+ 	struct lpfc_debugfs_trc *disc_trc;
+-	atomic_t disc_trc_cnt;
++	atomic_unchecked_t disc_trc_cnt;
+ #endif
+ 	uint8_t stat_data_enabled;
+ 	uint8_t stat_data_blocked;
+@@ -865,8 +865,8 @@ struct lpfc_hba {
+ 	struct timer_list fabric_block_timer;
+ 	unsigned long bit_flags;
+ #define	FABRIC_COMANDS_BLOCKED	0
+-	atomic_t num_rsrc_err;
+-	atomic_t num_cmd_success;
++	atomic_unchecked_t num_rsrc_err;
++	atomic_unchecked_t num_cmd_success;
+ 	unsigned long last_rsrc_error_time;
+ 	unsigned long last_ramp_down_time;
+ 	unsigned long last_ramp_up_time;
+@@ -902,7 +902,7 @@ struct lpfc_hba {
+ 
+ 	struct dentry *debug_slow_ring_trc;
+ 	struct lpfc_debugfs_trc *slow_ring_trc;
+-	atomic_t slow_ring_trc_cnt;
++	atomic_unchecked_t slow_ring_trc_cnt;
+ 	/* iDiag debugfs sub-directory */
+ 	struct dentry *idiag_root;
+ 	struct dentry *idiag_pci_cfg;
+diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
+index b800cc9..16b6a91 100644
+--- a/drivers/scsi/lpfc/lpfc_debugfs.c
++++ b/drivers/scsi/lpfc/lpfc_debugfs.c
+@@ -106,7 +106,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
+ 
+ #include <linux/debugfs.h>
+ 
+-static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
++static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
+ static unsigned long lpfc_debugfs_start_time = 0L;
+ 
+ /* iDiag */
+@@ -147,7 +147,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
+ 	lpfc_debugfs_enable = 0;
+ 
+ 	len = 0;
+-	index = (atomic_read(&vport->disc_trc_cnt) + 1) &
++	index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) &
+ 		(lpfc_debugfs_max_disc_trc - 1);
+ 	for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
+ 		dtp = vport->disc_trc + i;
+@@ -213,7 +213,7 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
+ 	lpfc_debugfs_enable = 0;
+ 
+ 	len = 0;
+-	index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
++	index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) &
+ 		(lpfc_debugfs_max_slow_ring_trc - 1);
+ 	for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
+ 		dtp = phba->slow_ring_trc + i;
+@@ -646,14 +646,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
+ 		!vport || !vport->disc_trc)
+ 		return;
+ 
+-	index = atomic_inc_return(&vport->disc_trc_cnt) &
++	index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) &
+ 		(lpfc_debugfs_max_disc_trc - 1);
+ 	dtp = vport->disc_trc + index;
+ 	dtp->fmt = fmt;
+ 	dtp->data1 = data1;
+ 	dtp->data2 = data2;
+ 	dtp->data3 = data3;
+-	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
++	dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
+ 	dtp->jif = jiffies;
+ #endif
+ 	return;
+@@ -684,14 +684,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
+ 		!phba || !phba->slow_ring_trc)
+ 		return;
+ 
+-	index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
++	index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) &
+ 		(lpfc_debugfs_max_slow_ring_trc - 1);
+ 	dtp = phba->slow_ring_trc + index;
+ 	dtp->fmt = fmt;
+ 	dtp->data1 = data1;
+ 	dtp->data2 = data2;
+ 	dtp->data3 = data3;
+-	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
++	dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt);
+ 	dtp->jif = jiffies;
+ #endif
+ 	return;
+@@ -4168,7 +4168,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
+ 						 "slow_ring buffer\n");
+ 				goto debug_failed;
+ 			}
+-			atomic_set(&phba->slow_ring_trc_cnt, 0);
++			atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0);
+ 			memset(phba->slow_ring_trc, 0,
+ 				(sizeof(struct lpfc_debugfs_trc) *
+ 				lpfc_debugfs_max_slow_ring_trc));
+@@ -4214,7 +4214,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
+ 				 "buffer\n");
+ 		goto debug_failed;
+ 	}
+-	atomic_set(&vport->disc_trc_cnt, 0);
++	atomic_set_unchecked(&vport->disc_trc_cnt, 0);
+ 
+ 	snprintf(name, sizeof(name), "discovery_trace");
+ 	vport->debug_disc_trc =
+diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
+index 68c94cc..8c27be5 100644
+--- a/drivers/scsi/lpfc/lpfc_init.c
++++ b/drivers/scsi/lpfc/lpfc_init.c
+@@ -10949,8 +10949,10 @@ lpfc_init(void)
+ 			"misc_register returned with status %d", error);
+ 
+ 	if (lpfc_enable_npiv) {
+-		lpfc_transport_functions.vport_create = lpfc_vport_create;
+-		lpfc_transport_functions.vport_delete = lpfc_vport_delete;
++		pax_open_kernel();
++		*(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create;
++		*(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete;
++		pax_close_kernel();
+ 	}
+ 	lpfc_transport_template =
+ 				fc_attach_transport(&lpfc_transport_functions);
+diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
+index b2ede05..aaf482ca 100644
+--- a/drivers/scsi/lpfc/lpfc_scsi.c
++++ b/drivers/scsi/lpfc/lpfc_scsi.c
+@@ -353,7 +353,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hba *phba)
+ 	uint32_t evt_posted;
+ 
+ 	spin_lock_irqsave(&phba->hbalock, flags);
+-	atomic_inc(&phba->num_rsrc_err);
++	atomic_inc_unchecked(&phba->num_rsrc_err);
+ 	phba->last_rsrc_error_time = jiffies;
+ 
+ 	if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) {
+@@ -394,7 +394,7 @@ lpfc_rampup_queue_depth(struct lpfc_vport  *vport,
+ 	unsigned long flags;
+ 	struct lpfc_hba *phba = vport->phba;
+ 	uint32_t evt_posted;
+-	atomic_inc(&phba->num_cmd_success);
++	atomic_inc_unchecked(&phba->num_cmd_success);
+ 
+ 	if (vport->cfg_lun_queue_depth <= queue_depth)
+ 		return;
+@@ -438,8 +438,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
+ 	unsigned long num_rsrc_err, num_cmd_success;
+ 	int i;
+ 
+-	num_rsrc_err = atomic_read(&phba->num_rsrc_err);
+-	num_cmd_success = atomic_read(&phba->num_cmd_success);
++	num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err);
++	num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success);
+ 
+ 	/*
+ 	 * The error and success command counters are global per
+@@ -467,8 +467,8 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
+ 			}
+ 		}
+ 	lpfc_destroy_vport_work_array(phba, vports);
+-	atomic_set(&phba->num_rsrc_err, 0);
+-	atomic_set(&phba->num_cmd_success, 0);
++	atomic_set_unchecked(&phba->num_rsrc_err, 0);
++	atomic_set_unchecked(&phba->num_cmd_success, 0);
+ }
+ 
+ /**
+@@ -502,8 +502,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
+ 			}
+ 		}
+ 	lpfc_destroy_vport_work_array(phba, vports);
+-	atomic_set(&phba->num_rsrc_err, 0);
+-	atomic_set(&phba->num_cmd_success, 0);
++	atomic_set_unchecked(&phba->num_rsrc_err, 0);
++	atomic_set_unchecked(&phba->num_cmd_success, 0);
+ }
+ 
+ /**
+diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+index 6fd7d40..b444223 100644
+--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
++++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+@@ -1557,7 +1557,7 @@ _scsih_get_resync(struct device *dev)
+ {
+ 	struct scsi_device *sdev = to_scsi_device(dev);
+ 	struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
+-	static struct _raid_device *raid_device;
++	struct _raid_device *raid_device;
+ 	unsigned long flags;
+ 	Mpi2RaidVolPage0_t vol_pg0;
+ 	Mpi2ConfigReply_t mpi_reply;
+@@ -1609,7 +1609,7 @@ _scsih_get_state(struct device *dev)
+ {
+ 	struct scsi_device *sdev = to_scsi_device(dev);
+ 	struct MPT2SAS_ADAPTER *ioc = shost_priv(sdev->host);
+-	static struct _raid_device *raid_device;
++	struct _raid_device *raid_device;
+ 	unsigned long flags;
+ 	Mpi2RaidVolPage0_t vol_pg0;
+ 	Mpi2ConfigReply_t mpi_reply;
+@@ -6637,7 +6637,7 @@ _scsih_sas_ir_operation_status_event(struct MPT2SAS_ADAPTER *ioc,
+     struct fw_event_work *fw_event)
+ {
+ 	Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
+-	static struct _raid_device *raid_device;
++	struct _raid_device *raid_device;
+ 	unsigned long flags;
+ 	u16 handle;
+ 
+@@ -7108,7 +7108,7 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
+ 	u64 sas_address;
+ 	struct _sas_device *sas_device;
+ 	struct _sas_node *expander_device;
+-	static struct _raid_device *raid_device;
++	struct _raid_device *raid_device;
+ 	u8 retry_count;
+ 	unsigned long flags;
+ 
+diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
+index be8ce54..94ed33a 100644
+--- a/drivers/scsi/pmcraid.c
++++ b/drivers/scsi/pmcraid.c
+@@ -200,8 +200,8 @@ static int pmcraid_slave_alloc(struct scsi_device *scsi_dev)
+ 		res->scsi_dev = scsi_dev;
+ 		scsi_dev->hostdata = res;
+ 		res->change_detected = 0;
+-		atomic_set(&res->read_failures, 0);
+-		atomic_set(&res->write_failures, 0);
++		atomic_set_unchecked(&res->read_failures, 0);
++		atomic_set_unchecked(&res->write_failures, 0);
+ 		rc = 0;
+ 	}
+ 	spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags);
+@@ -2687,9 +2687,9 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
+ 
+ 	/* If this was a SCSI read/write command keep count of errors */
+ 	if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD)
+-		atomic_inc(&res->read_failures);
++		atomic_inc_unchecked(&res->read_failures);
+ 	else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD)
+-		atomic_inc(&res->write_failures);
++		atomic_inc_unchecked(&res->write_failures);
+ 
+ 	if (!RES_IS_GSCSI(res->cfg_entry) &&
+ 		masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) {
+@@ -3545,7 +3545,7 @@ static int pmcraid_queuecommand_lck(
+ 	 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
+ 	 * hrrq_id assigned here in queuecommand
+ 	 */
+-	ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
++	ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
+ 			  pinstance->num_hrrq;
+ 	cmd->cmd_done = pmcraid_io_done;
+ 
+@@ -3857,7 +3857,7 @@ static long pmcraid_ioctl_passthrough(
+ 	 * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses
+ 	 * hrrq_id assigned here in queuecommand
+ 	 */
+-	ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) %
++	ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) %
+ 			  pinstance->num_hrrq;
+ 
+ 	if (request_size) {
+@@ -4495,7 +4495,7 @@ static void pmcraid_worker_function(struct work_struct *workp)
+ 
+ 	pinstance = container_of(workp, struct pmcraid_instance, worker_q);
+ 	/* add resources only after host is added into system */
+-	if (!atomic_read(&pinstance->expose_resources))
++	if (!atomic_read_unchecked(&pinstance->expose_resources))
+ 		return;
+ 
+ 	fw_version = be16_to_cpu(pinstance->inq_data->fw_version);
+@@ -5322,8 +5322,8 @@ static int pmcraid_init_instance(struct pci_dev *pdev, struct Scsi_Host *host,
+ 	init_waitqueue_head(&pinstance->reset_wait_q);
+ 
+ 	atomic_set(&pinstance->outstanding_cmds, 0);
+-	atomic_set(&pinstance->last_message_id, 0);
+-	atomic_set(&pinstance->expose_resources, 0);
++	atomic_set_unchecked(&pinstance->last_message_id, 0);
++	atomic_set_unchecked(&pinstance->expose_resources, 0);
+ 
+ 	INIT_LIST_HEAD(&pinstance->free_res_q);
+ 	INIT_LIST_HEAD(&pinstance->used_res_q);
+@@ -6036,7 +6036,7 @@ static int pmcraid_probe(struct pci_dev *pdev,
+ 	/* Schedule worker thread to handle CCN and take care of adding and
+ 	 * removing devices to OS
+ 	 */
+-	atomic_set(&pinstance->expose_resources, 1);
++	atomic_set_unchecked(&pinstance->expose_resources, 1);
+ 	schedule_work(&pinstance->worker_q);
+ 	return rc;
+ 
+diff --git a/drivers/scsi/pmcraid.h b/drivers/scsi/pmcraid.h
+index e1d150f..6c6df44 100644
+--- a/drivers/scsi/pmcraid.h
++++ b/drivers/scsi/pmcraid.h
+@@ -748,7 +748,7 @@ struct pmcraid_instance {
+ 	struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS];
+ 
+ 	/* Message id as filled in last fired IOARCB, used to identify HRRQ */
+-	atomic_t last_message_id;
++	atomic_unchecked_t last_message_id;
+ 
+ 	/* configuration table */
+ 	struct pmcraid_config_table *cfg_table;
+@@ -777,7 +777,7 @@ struct pmcraid_instance {
+ 	atomic_t outstanding_cmds;
+ 
+ 	/* should add/delete resources to mid-layer now ?*/
+-	atomic_t expose_resources;
++	atomic_unchecked_t expose_resources;
+ 
+ 
+ 
+@@ -813,8 +813,8 @@ struct pmcraid_resource_entry {
+ 		struct pmcraid_config_table_entry_ext cfg_entry_ext;
+ 	};
+ 	struct scsi_device *scsi_dev;	/* Link scsi_device structure */
+-	atomic_t read_failures;		/* count of failed READ commands */
+-	atomic_t write_failures;	/* count of failed WRITE commands */
++	atomic_unchecked_t read_failures;	/* count of failed READ commands */
++	atomic_unchecked_t write_failures;	/* count of failed WRITE commands */
+ 
+ 	/* To indicate add/delete/modify during CCN */
+ 	u8 change_detected;
+diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
+index 4a0d7c9..3d658d7 100644
+--- a/drivers/scsi/qla2xxx/qla_attr.c
++++ b/drivers/scsi/qla2xxx/qla_attr.c
+@@ -2038,7 +2038,7 @@ qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
+ 	return 0;
+ }
+ 
+-struct fc_function_template qla2xxx_transport_functions = {
++fc_function_template_no_const qla2xxx_transport_functions = {
+ 
+ 	.show_host_node_name = 1,
+ 	.show_host_port_name = 1,
+@@ -2086,7 +2086,7 @@ struct fc_function_template qla2xxx_transport_functions = {
+ 	.bsg_timeout = qla24xx_bsg_timeout,
+ };
+ 
+-struct fc_function_template qla2xxx_transport_vport_functions = {
++fc_function_template_no_const qla2xxx_transport_vport_functions = {
+ 
+ 	.show_host_node_name = 1,
+ 	.show_host_port_name = 1,
+diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
+index b5f22a9..c67e04d 100644
+--- a/drivers/scsi/qla2xxx/qla_gbl.h
++++ b/drivers/scsi/qla2xxx/qla_gbl.h
+@@ -546,8 +546,8 @@ extern void qla2x00_get_sym_node_name(scsi_qla_host_t *, uint8_t *);
+ struct device_attribute;
+ extern struct device_attribute *qla2x00_host_attrs[];
+ struct fc_function_template;
+-extern struct fc_function_template qla2xxx_transport_functions;
+-extern struct fc_function_template qla2xxx_transport_vport_functions;
++extern fc_function_template_no_const qla2xxx_transport_functions;
++extern fc_function_template_no_const qla2xxx_transport_vport_functions;
+ extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
+ extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *, bool);
+ extern void qla2x00_init_host_attr(scsi_qla_host_t *);
+diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
+index 23c1b0c..e8035ca 100644
+--- a/drivers/scsi/qla2xxx/qla_os.c
++++ b/drivers/scsi/qla2xxx/qla_os.c
+@@ -1491,8 +1491,10 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha)
+ 		    !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
+ 			/* Ok, a 64bit DMA mask is applicable. */
+ 			ha->flags.enable_64bit_addressing = 1;
+-			ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
+-			ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
++			pax_open_kernel();
++			*(void **)&ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
++			*(void **)&ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
++			pax_close_kernel();
+ 			return;
+ 		}
+ 	}
+diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
+index aa67bb9..06d0e2a 100644
+--- a/drivers/scsi/qla4xxx/ql4_def.h
++++ b/drivers/scsi/qla4xxx/ql4_def.h
+@@ -303,7 +303,7 @@ struct ddb_entry {
+ 					   * (4000 only) */
+ 	atomic_t relogin_timer;		  /* Max Time to wait for
+ 					   * relogin to complete */
+-	atomic_t relogin_retry_count;	  /* Num of times relogin has been
++	atomic_unchecked_t relogin_retry_count;	  /* Num of times relogin has been
+ 					   * retried */
+ 	uint32_t default_time2wait;	  /* Default Min time between
+ 					   * relogins (+aens) */
+diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
+index c21adc3..1b4155f 100644
+--- a/drivers/scsi/qla4xxx/ql4_os.c
++++ b/drivers/scsi/qla4xxx/ql4_os.c
+@@ -4463,12 +4463,12 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
+ 		 */
+ 		if (!iscsi_is_session_online(cls_sess)) {
+ 			/* Reset retry relogin timer */
+-			atomic_inc(&ddb_entry->relogin_retry_count);
++			atomic_inc_unchecked(&ddb_entry->relogin_retry_count);
+ 			DEBUG2(ql4_printk(KERN_INFO, ha,
+ 				"%s: index[%d] relogin timed out-retrying"
+ 				" relogin (%d), retry (%d)\n", __func__,
+ 				ddb_entry->fw_ddb_index,
+-				atomic_read(&ddb_entry->relogin_retry_count),
++				atomic_read_unchecked(&ddb_entry->relogin_retry_count),
+ 				ddb_entry->default_time2wait + 4));
+ 			set_bit(DPC_RELOGIN_DEVICE, &ha->dpc_flags);
+ 			atomic_set(&ddb_entry->retry_relogin_timer,
+@@ -6552,7 +6552,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
+ 
+ 	atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
+ 	atomic_set(&ddb_entry->relogin_timer, 0);
+-	atomic_set(&ddb_entry->relogin_retry_count, 0);
++	atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0);
+ 	def_timeout = le16_to_cpu(ddb_entry->fw_ddb_entry.def_timeout);
+ 	ddb_entry->default_relogin_timeout =
+ 		(def_timeout > LOGIN_TOV) && (def_timeout < LOGIN_TOV * 10) ?
+diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
+index d8afec8..3ec7152 100644
+--- a/drivers/scsi/scsi.c
++++ b/drivers/scsi/scsi.c
+@@ -658,7 +658,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
+ 	struct Scsi_Host *host = cmd->device->host;
+ 	int rtn = 0;
+ 
+-	atomic_inc(&cmd->device->iorequest_cnt);
++	atomic_inc_unchecked(&cmd->device->iorequest_cnt);
+ 
+ 	/* check if the device is still usable */
+ 	if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
+diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
+index 719bd82..c996ebc 100644
+--- a/drivers/scsi/scsi_lib.c
++++ b/drivers/scsi/scsi_lib.c
+@@ -1484,7 +1484,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
+ 	shost = sdev->host;
+ 	scsi_init_cmd_errh(cmd);
+ 	cmd->result = DID_NO_CONNECT << 16;
+-	atomic_inc(&cmd->device->iorequest_cnt);
++	atomic_inc_unchecked(&cmd->device->iorequest_cnt);
+ 
+ 	/*
+ 	 * SCSI request completion path will do scsi_device_unbusy(),
+@@ -1510,9 +1510,9 @@ static void scsi_softirq_done(struct request *rq)
+ 
+ 	INIT_LIST_HEAD(&cmd->eh_entry);
+ 
+-	atomic_inc(&cmd->device->iodone_cnt);
++	atomic_inc_unchecked(&cmd->device->iodone_cnt);
+ 	if (cmd->result)
+-		atomic_inc(&cmd->device->ioerr_cnt);
++		atomic_inc_unchecked(&cmd->device->ioerr_cnt);
+ 
+ 	disposition = scsi_decide_disposition(cmd);
+ 	if (disposition != SUCCESS &&
+diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
+index 665acbf..d18fab4 100644
+--- a/drivers/scsi/scsi_sysfs.c
++++ b/drivers/scsi/scsi_sysfs.c
+@@ -734,7 +734,7 @@ show_iostat_##field(struct device *dev, struct device_attribute *attr,	\
+ 		    char *buf)						\
+ {									\
+ 	struct scsi_device *sdev = to_scsi_device(dev);			\
+-	unsigned long long count = atomic_read(&sdev->field);		\
++	unsigned long long count = atomic_read_unchecked(&sdev->field);	\
+ 	return snprintf(buf, 20, "0x%llx\n", count);			\
+ }									\
+ static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
+diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
+index 84a1fdf..693b0d6 100644
+--- a/drivers/scsi/scsi_tgt_lib.c
++++ b/drivers/scsi/scsi_tgt_lib.c
+@@ -362,7 +362,7 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
+ 	int err;
+ 
+ 	dprintk("%lx %u\n", uaddr, len);
+-	err = blk_rq_map_user(q, rq, NULL, (void *)uaddr, len, GFP_KERNEL);
++	err = blk_rq_map_user(q, rq, NULL, (void __user *)uaddr, len, GFP_KERNEL);
+ 	if (err) {
+ 		/*
+ 		 * TODO: need to fixup sg_tablesize, max_segment_size,
+diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
+index 4628fd5..a94a1c2 100644
+--- a/drivers/scsi/scsi_transport_fc.c
++++ b/drivers/scsi/scsi_transport_fc.c
+@@ -497,7 +497,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_class,
+  * Netlink Infrastructure
+  */
+ 
+-static atomic_t fc_event_seq;
++static atomic_unchecked_t fc_event_seq;
+ 
+ /**
+  * fc_get_event_number - Obtain the next sequential FC event number
+@@ -510,7 +510,7 @@ static atomic_t fc_event_seq;
+ u32
+ fc_get_event_number(void)
+ {
+-	return atomic_add_return(1, &fc_event_seq);
++	return atomic_add_return_unchecked(1, &fc_event_seq);
+ }
+ EXPORT_SYMBOL(fc_get_event_number);
+ 
+@@ -654,7 +654,7 @@ static __init int fc_transport_init(void)
+ {
+ 	int error;
+ 
+-	atomic_set(&fc_event_seq, 0);
++	atomic_set_unchecked(&fc_event_seq, 0);
+ 
+ 	error = transport_class_register(&fc_host_class);
+ 	if (error)
+@@ -844,7 +844,7 @@ static int fc_str_to_dev_loss(const char *buf, unsigned long *val)
+ 	char *cp;
+ 
+ 	*val = simple_strtoul(buf, &cp, 0);
+-	if ((*cp && (*cp != '\n')) || (*val < 0))
++	if (*cp && (*cp != '\n'))
+ 		return -EINVAL;
+ 	/*
+ 	 * Check for overflow; dev_loss_tmo is u32
+diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
+index fd8ffe6..fd0bebf 100644
+--- a/drivers/scsi/scsi_transport_iscsi.c
++++ b/drivers/scsi/scsi_transport_iscsi.c
+@@ -79,7 +79,7 @@ struct iscsi_internal {
+ 	struct transport_container session_cont;
+ };
+ 
+-static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
++static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */
+ static struct workqueue_struct *iscsi_eh_timer_workq;
+ 
+ static DEFINE_IDA(iscsi_sess_ida);
+@@ -2071,7 +2071,7 @@ int iscsi_add_session(struct iscsi_cls_session *session, unsigned int target_id)
+ 	int err;
+ 
+ 	ihost = shost->shost_data;
+-	session->sid = atomic_add_return(1, &iscsi_session_nr);
++	session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr);
+ 
+ 	if (target_id == ISCSI_MAX_TARGET) {
+ 		id = ida_simple_get(&iscsi_sess_ida, 0, 0, GFP_KERNEL);
+@@ -4511,7 +4511,7 @@ static __init int iscsi_transport_init(void)
+ 	printk(KERN_INFO "Loading iSCSI transport class v%s.\n",
+ 		ISCSI_TRANSPORT_VERSION);
+ 
+-	atomic_set(&iscsi_session_nr, 0);
++	atomic_set_unchecked(&iscsi_session_nr, 0);
+ 
+ 	err = class_register(&iscsi_transport_class);
+ 	if (err)
+diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
+index e3e794e..f72f20c 100644
+--- a/drivers/scsi/scsi_transport_srp.c
++++ b/drivers/scsi/scsi_transport_srp.c
+@@ -36,7 +36,7 @@
+ #include "scsi_transport_srp_internal.h"
+ 
+ struct srp_host_attrs {
+-	atomic_t next_port_id;
++	atomic_unchecked_t next_port_id;
+ };
+ #define to_srp_host_attrs(host)	((struct srp_host_attrs *)(host)->shost_data)
+ 
+@@ -101,7 +101,7 @@ static int srp_host_setup(struct transport_container *tc, struct device *dev,
+ 	struct Scsi_Host *shost = dev_to_shost(dev);
+ 	struct srp_host_attrs *srp_host = to_srp_host_attrs(shost);
+ 
+-	atomic_set(&srp_host->next_port_id, 0);
++	atomic_set_unchecked(&srp_host->next_port_id, 0);
+ 	return 0;
+ }
+ 
+@@ -735,7 +735,7 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
+ 			  rport_fast_io_fail_timedout);
+ 	INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout);
+ 
+-	id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
++	id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id);
+ 	dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
+ 
+ 	transport_setup_device(&rport->dev);
+diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
+index a107064..a14c333 100644
+--- a/drivers/scsi/sd.c
++++ b/drivers/scsi/sd.c
+@@ -2958,7 +2958,7 @@ static int sd_probe(struct device *dev)
+ 	sdkp->disk = gd;
+ 	sdkp->index = index;
+ 	atomic_set(&sdkp->openers, 0);
+-	atomic_set(&sdkp->device->ioerr_cnt, 0);
++	atomic_set_unchecked(&sdkp->device->ioerr_cnt, 0);
+ 
+ 	if (!sdp->request_queue->rq_timeout) {
+ 		if (sdp->type != TYPE_MOD)
+diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
+index eb81c98..e6716ae 100644
+--- a/drivers/scsi/sg.c
++++ b/drivers/scsi/sg.c
+@@ -1102,7 +1102,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
+ 				       sdp->disk->disk_name,
+ 				       MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
+ 				       NULL,
+-				       (char *)arg);
++				       (char __user *)arg);
+ 	case BLKTRACESTART:
+ 		return blk_trace_startstop(sdp->device->request_queue, 1);
+ 	case BLKTRACESTOP:
+diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
+index d6563ec..a1c5da2 100644
+--- a/drivers/spi/spi.c
++++ b/drivers/spi/spi.c
+@@ -1981,7 +1981,7 @@ int spi_bus_unlock(struct spi_master *master)
+ EXPORT_SYMBOL_GPL(spi_bus_unlock);
+ 
+ /* portable code must never pass more than 32 bytes */
+-#define	SPI_BUFSIZ	max(32, SMP_CACHE_BYTES)
++#define	SPI_BUFSIZ	max(32UL, SMP_CACHE_BYTES)
+ 
+ static u8	*buf;
+ 
+diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
+index 2c61783..4d49e4e 100644
+--- a/drivers/staging/android/timed_output.c
++++ b/drivers/staging/android/timed_output.c
+@@ -25,7 +25,7 @@
+ #include "timed_output.h"
+ 
+ static struct class *timed_output_class;
+-static atomic_t device_count;
++static atomic_unchecked_t device_count;
+ 
+ static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
+ 			   char *buf)
+@@ -63,7 +63,7 @@ static int create_timed_output_class(void)
+ 		timed_output_class = class_create(THIS_MODULE, "timed_output");
+ 		if (IS_ERR(timed_output_class))
+ 			return PTR_ERR(timed_output_class);
+-		atomic_set(&device_count, 0);
++		atomic_set_unchecked(&device_count, 0);
+ 		timed_output_class->dev_groups = timed_output_groups;
+ 	}
+ 
+@@ -81,7 +81,7 @@ int timed_output_dev_register(struct timed_output_dev *tdev)
+ 	if (ret < 0)
+ 		return ret;
+ 
+-	tdev->index = atomic_inc_return(&device_count);
++	tdev->index = atomic_inc_return_unchecked(&device_count);
+ 	tdev->dev = device_create(timed_output_class, NULL,
+ 		MKDEV(0, tdev->index), NULL, "%s", tdev->name);
+ 	if (IS_ERR(tdev->dev))
+diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
+index fe47cd3..19a1bd1 100644
+--- a/drivers/staging/gdm724x/gdm_tty.c
++++ b/drivers/staging/gdm724x/gdm_tty.c
+@@ -44,7 +44,7 @@
+ #define gdm_tty_send_control(n, r, v, d, l) (\
+ 	n->tty_dev->send_control(n->tty_dev->priv_dev, r, v, d, l))
+ 
+-#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
++#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && atomic_read(&gdm->port.count))
+ 
+ static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
+ static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
+diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
+index 236ed66..dd9cd74 100644
+--- a/drivers/staging/imx-drm/imx-drm-core.c
++++ b/drivers/staging/imx-drm/imx-drm-core.c
+@@ -488,7 +488,7 @@ int imx_drm_add_crtc(struct drm_crtc *crtc,
+ 		goto err_busy;
+ 	}
+ 
+-	if (imxdrm->drm->open_count) {
++	if (local_read(&imxdrm->drm->open_count)) {
+ 		ret = -EBUSY;
+ 		goto err_busy;
+ 	}
+@@ -576,7 +576,7 @@ int imx_drm_add_encoder(struct drm_encoder *encoder,
+ 
+ 	mutex_lock(&imxdrm->mutex);
+ 
+-	if (imxdrm->drm->open_count) {
++	if (local_read(&imxdrm->drm->open_count)) {
+ 		ret = -EBUSY;
+ 		goto err_busy;
+ 	}
+@@ -715,7 +715,7 @@ int imx_drm_add_connector(struct drm_connector *connector,
+ 
+ 	mutex_lock(&imxdrm->mutex);
+ 
+-	if (imxdrm->drm->open_count) {
++	if (local_read(&imxdrm->drm->open_count)) {
+ 		ret = -EBUSY;
+ 		goto err_busy;
+ 	}
+diff --git a/drivers/staging/line6/driver.c b/drivers/staging/line6/driver.c
+index 7a6d85e..1304fbe 100644
+--- a/drivers/staging/line6/driver.c
++++ b/drivers/staging/line6/driver.c
+@@ -458,7 +458,7 @@ int line6_read_data(struct usb_line6 *line6, int address, void *data,
+ {
+ 	struct usb_device *usbdev = line6->usbdev;
+ 	int ret;
+-	unsigned char len;
++	unsigned char *plen;
+ 
+ 	/* query the serial number: */
+ 	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
+@@ -471,27 +471,34 @@ int line6_read_data(struct usb_line6 *line6, int address, void *data,
+ 		return ret;
+ 	}
+ 
++	plen = kmalloc(1, GFP_KERNEL);
++	if (plen == NULL)
++		return -ENOMEM;
++
+ 	/* Wait for data length. We'll get 0xff until length arrives. */
+ 	do {
+ 		ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
+ 				      USB_TYPE_VENDOR | USB_RECIP_DEVICE |
+ 				      USB_DIR_IN,
+-				      0x0012, 0x0000, &len, 1,
++				      0x0012, 0x0000, plen, 1,
+ 				      LINE6_TIMEOUT * HZ);
+ 		if (ret < 0) {
+ 			dev_err(line6->ifcdev,
+ 				"receive length failed (error %d)\n", ret);
++			kfree(plen);
+ 			return ret;
+ 		}
+-	} while (len == 0xff);
++	} while (*plen == 0xff);
+ 
+-	if (len != datalen) {
++	if (*plen != datalen) {
+ 		/* should be equal or something went wrong */
+ 		dev_err(line6->ifcdev,
+ 			"length mismatch (expected %d, got %d)\n",
+-			(int)datalen, (int)len);
++			(int)datalen, (int)*plen);
++		kfree(plen);
+ 		return -EINVAL;
+ 	}
++	kfree(plen);
+ 
+ 	/* receive the result: */
+ 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
+@@ -515,7 +522,7 @@ int line6_write_data(struct usb_line6 *line6, int address, void *data,
+ {
+ 	struct usb_device *usbdev = line6->usbdev;
+ 	int ret;
+-	unsigned char status;
++	unsigned char *status;
+ 
+ 	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
+ 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+@@ -528,26 +535,34 @@ int line6_write_data(struct usb_line6 *line6, int address, void *data,
+ 		return ret;
+ 	}
+ 
++	status = kmalloc(1, GFP_KERNEL);
++	if (status == NULL)
++		return -ENOMEM;
++
+ 	do {
+ 		ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
+ 				      0x67,
+ 				      USB_TYPE_VENDOR | USB_RECIP_DEVICE |
+ 				      USB_DIR_IN,
+ 				      0x0012, 0x0000,
+-				      &status, 1, LINE6_TIMEOUT * HZ);
++				      status, 1, LINE6_TIMEOUT * HZ);
+ 
+ 		if (ret < 0) {
+ 			dev_err(line6->ifcdev,
+ 				"receiving status failed (error %d)\n", ret);
++			kfree(status);
+ 			return ret;
+ 		}
+-	} while (status == 0xff);
++	} while (*status == 0xff);
+ 
+-	if (status != 0) {
++	if (*status != 0) {
+ 		dev_err(line6->ifcdev, "write failed (error %d)\n", ret);
++		kfree(status);
+ 		return -EINVAL;
+ 	}
+ 
++	kfree(status);
++
+ 	return 0;
+ }
+ 
+diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c
+index af2e7e5..e558d65 100644
+--- a/drivers/staging/line6/toneport.c
++++ b/drivers/staging/line6/toneport.c
+@@ -11,6 +11,7 @@
+  */
+ 
+ #include <linux/wait.h>
++#include <linux/slab.h>
+ #include <sound/control.h>
+ 
+ #include "audio.h"
+@@ -304,14 +305,20 @@ static void toneport_destruct(struct usb_interface *interface)
+ */
+ static void toneport_setup(struct usb_line6_toneport *toneport)
+ {
+-	int ticks;
++	int *ticks;
+ 	struct usb_line6 *line6 = &toneport->line6;
+ 	struct usb_device *usbdev = line6->usbdev;
+ 	u16 idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
+ 
++	ticks = kmalloc(sizeof(int), GFP_KERNEL);
++	if (ticks == NULL)
++		return;
++
+ 	/* sync time on device with host: */
+-	ticks = (int)get_seconds();
+-	line6_write_data(line6, 0x80c6, &ticks, 4);
++	*ticks = (int)get_seconds();
++	line6_write_data(line6, 0x80c6, ticks, sizeof(int));
++
++	kfree(ticks);
+ 
+ 	/* enable device: */
+ 	toneport_send_cmd(usbdev, 0x0301, 0x0000);
+diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
+index 3f8020c..649fded 100644
+--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
++++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
+@@ -488,13 +488,11 @@ brw_server_handle(struct srpc_server_rpc *rpc)
+ 	return 0;
+ }
+ 
+-sfw_test_client_ops_t brw_test_client;
+-void brw_init_test_client(void)
+-{
+-	brw_test_client.tso_init       = brw_client_init;
+-	brw_test_client.tso_fini       = brw_client_fini;
+-	brw_test_client.tso_prep_rpc   = brw_client_prep_rpc;
+-	brw_test_client.tso_done_rpc   = brw_client_done_rpc;
++sfw_test_client_ops_t brw_test_client = {
++	.tso_init       = brw_client_init,
++	.tso_fini       = brw_client_fini,
++	.tso_prep_rpc   = brw_client_prep_rpc,
++	.tso_done_rpc   = brw_client_done_rpc,
+ };
+ 
+ srpc_service_t brw_test_service;
+diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
+index 050723a..fa6fdf1 100644
+--- a/drivers/staging/lustre/lnet/selftest/framework.c
++++ b/drivers/staging/lustre/lnet/selftest/framework.c
+@@ -1635,12 +1635,10 @@ static srpc_service_t sfw_services[] =
+ 
+ extern sfw_test_client_ops_t ping_test_client;
+ extern srpc_service_t	ping_test_service;
+-extern void ping_init_test_client(void);
+ extern void ping_init_test_service(void);
+ 
+ extern sfw_test_client_ops_t brw_test_client;
+ extern srpc_service_t	brw_test_service;
+-extern void brw_init_test_client(void);
+ extern void brw_init_test_service(void);
+ 
+ 
+@@ -1684,12 +1682,10 @@ sfw_startup (void)
+ 	INIT_LIST_HEAD(&sfw_data.fw_zombie_rpcs);
+ 	INIT_LIST_HEAD(&sfw_data.fw_zombie_sessions);
+ 
+-	brw_init_test_client();
+ 	brw_init_test_service();
+ 	rc = sfw_register_test(&brw_test_service, &brw_test_client);
+ 	LASSERT (rc == 0);
+ 
+-	ping_init_test_client();
+ 	ping_init_test_service();
+ 	rc = sfw_register_test(&ping_test_service, &ping_test_client);
+ 	LASSERT (rc == 0);
+diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
+index 750cac4..e4d751f 100644
+--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
++++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
+@@ -211,14 +211,12 @@ ping_server_handle(struct srpc_server_rpc *rpc)
+ 	return 0;
+ }
+ 
+-sfw_test_client_ops_t ping_test_client;
+-void ping_init_test_client(void)
+-{
+-	ping_test_client.tso_init     = ping_client_init;
+-	ping_test_client.tso_fini     = ping_client_fini;
+-	ping_test_client.tso_prep_rpc = ping_client_prep_rpc;
+-	ping_test_client.tso_done_rpc = ping_client_done_rpc;
+-}
++sfw_test_client_ops_t ping_test_client = {
++	.tso_init     = ping_client_init,
++	.tso_fini     = ping_client_fini,
++	.tso_prep_rpc = ping_client_prep_rpc,
++	.tso_done_rpc = ping_client_done_rpc,
++};
+ 
+ srpc_service_t ping_test_service;
+ void ping_init_test_service(void)
+diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
+index ec4bb5e..740c6dd 100644
+--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
++++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
+@@ -1141,7 +1141,7 @@ struct ldlm_callback_suite {
+ 	ldlm_completion_callback lcs_completion;
+ 	ldlm_blocking_callback   lcs_blocking;
+ 	ldlm_glimpse_callback    lcs_glimpse;
+-};
++} __no_const;
+ 
+ /* ldlm_lockd.c */
+ int ldlm_del_waiting_lock(struct ldlm_lock *lock);
+diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
+index c3470ce..2bef527 100644
+--- a/drivers/staging/lustre/lustre/include/obd.h
++++ b/drivers/staging/lustre/lustre/include/obd.h
+@@ -1426,7 +1426,7 @@ struct md_ops {
+ 	 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
+ 	 * wrapper function in include/linux/obd_class.h.
+ 	 */
+-};
++} __no_const;
+ 
+ struct lsm_operations {
+ 	void (*lsm_free)(struct lov_stripe_md *);
+diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+index c9aae13..60ea292 100644
+--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
++++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+@@ -239,7 +239,7 @@ ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags, int first_enq,
+ 	int added = (mode == LCK_NL);
+ 	int overlaps = 0;
+ 	int splitted = 0;
+-	const struct ldlm_callback_suite null_cbs = { NULL };
++	const struct ldlm_callback_suite null_cbs = { };
+ 
+ 	CDEBUG(D_DLMTRACE, "flags %#llx owner "LPU64" pid %u mode %u start "
+ 	       LPU64" end "LPU64"\n", *flags,
+diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
+index e947b91..f408990 100644
+--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
++++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-proc.c
+@@ -217,7 +217,7 @@ DECLARE_PROC_HANDLER(proc_debug_mb)
+ int LL_PROC_PROTO(proc_console_max_delay_cs)
+ {
+ 	int rc, max_delay_cs;
+-	ctl_table_t dummy = *table;
++	ctl_table_no_const dummy = *table;
+ 	cfs_duration_t d;
+ 
+ 	dummy.data = &max_delay_cs;
+@@ -248,7 +248,7 @@ int LL_PROC_PROTO(proc_console_max_delay_cs)
+ int LL_PROC_PROTO(proc_console_min_delay_cs)
+ {
+ 	int rc, min_delay_cs;
+-	ctl_table_t dummy = *table;
++	ctl_table_no_const dummy = *table;
+ 	cfs_duration_t d;
+ 
+ 	dummy.data = &min_delay_cs;
+@@ -279,7 +279,7 @@ int LL_PROC_PROTO(proc_console_min_delay_cs)
+ int LL_PROC_PROTO(proc_console_backoff)
+ {
+ 	int rc, backoff;
+-	ctl_table_t dummy = *table;
++	ctl_table_no_const dummy = *table;
+ 
+ 	dummy.data = &backoff;
+ 	dummy.proc_handler = &proc_dointvec;
+diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
+index 24ae26d..9d09cab 100644
+--- a/drivers/staging/lustre/lustre/libcfs/module.c
++++ b/drivers/staging/lustre/lustre/libcfs/module.c
+@@ -313,11 +313,11 @@ out:
+ 
+ 
+ struct cfs_psdev_ops libcfs_psdev_ops = {
+-	libcfs_psdev_open,
+-	libcfs_psdev_release,
+-	NULL,
+-	NULL,
+-	libcfs_ioctl
++	.p_open = libcfs_psdev_open,
++	.p_close = libcfs_psdev_release,
++	.p_read = NULL,
++	.p_write = NULL,
++	.p_ioctl = libcfs_ioctl
+ };
+ 
+ extern int insert_proc(void);
+diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
+index 52b7731..d604da0 100644
+--- a/drivers/staging/lustre/lustre/llite/dir.c
++++ b/drivers/staging/lustre/lustre/llite/dir.c
+@@ -660,7 +660,7 @@ int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
+ 	int mode;
+ 	int err;
+ 
+-	mode = (0755 & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
++	mode = (0755 & (S_IRWXUGO|S_ISVTX) & ~current_umask()) | S_IFDIR;
+ 	op_data = ll_prep_md_op_data(NULL, dir, NULL, filename,
+ 				     strlen(filename), mode, LUSTRE_OPC_MKDIR,
+ 				     lump);
+diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
+index 5ae562e..6b661ff 100644
+--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
++++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
+@@ -576,7 +576,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
+ 	if (sb->s_root == NULL) {
+ 		CERROR("%s: can't make root dentry\n",
+ 			ll_get_fsname(sb, NULL, 0));
+-		GOTO(out_root, err = -ENOMEM);
++		GOTO(out_lock_cn_cb, err = -ENOMEM);
+ 	}
+ 
+ 	/* kernel >= 2.6.38 store dentry operations in sb->s_d_op. */
+diff --git a/drivers/staging/media/solo6x10/solo6x10-core.c b/drivers/staging/media/solo6x10/solo6x10-core.c
+index 480b7c4..6846324 100644
+--- a/drivers/staging/media/solo6x10/solo6x10-core.c
++++ b/drivers/staging/media/solo6x10/solo6x10-core.c
+@@ -434,7 +434,7 @@ static void solo_device_release(struct device *dev)
+ 
+ static int solo_sysfs_init(struct solo_dev *solo_dev)
+ {
+-	struct bin_attribute *sdram_attr = &solo_dev->sdram_attr;
++	bin_attribute_no_const *sdram_attr = &solo_dev->sdram_attr;
+ 	struct device *dev = &solo_dev->dev;
+ 	const char *driver;
+ 	int i;
+diff --git a/drivers/staging/media/solo6x10/solo6x10-g723.c b/drivers/staging/media/solo6x10/solo6x10-g723.c
+index 1db18c7..35e6afc 100644
+--- a/drivers/staging/media/solo6x10/solo6x10-g723.c
++++ b/drivers/staging/media/solo6x10/solo6x10-g723.c
+@@ -355,7 +355,7 @@ static int solo_snd_pcm_init(struct solo_dev *solo_dev)
+ 
+ int solo_g723_init(struct solo_dev *solo_dev)
+ {
+-	static struct snd_device_ops ops = { NULL };
++	static struct snd_device_ops ops = { };
+ 	struct snd_card *card;
+ 	struct snd_kcontrol_new kctl;
+ 	char name[32];
+diff --git a/drivers/staging/media/solo6x10/solo6x10-p2m.c b/drivers/staging/media/solo6x10/solo6x10-p2m.c
+index 7f2f247..d999137 100644
+--- a/drivers/staging/media/solo6x10/solo6x10-p2m.c
++++ b/drivers/staging/media/solo6x10/solo6x10-p2m.c
+@@ -77,7 +77,7 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
+ 
+ 	/* Get next ID. According to Softlogic, 6110 has problems on !=0 P2M */
+ 	if (solo_dev->type != SOLO_DEV_6110 && multi_p2m) {
+-		p2m_id = atomic_inc_return(&solo_dev->p2m_count) % SOLO_NR_P2M;
++		p2m_id = atomic_inc_return_unchecked(&solo_dev->p2m_count) % SOLO_NR_P2M;
+ 		if (p2m_id < 0)
+ 			p2m_id = -p2m_id;
+ 	}
+diff --git a/drivers/staging/media/solo6x10/solo6x10.h b/drivers/staging/media/solo6x10/solo6x10.h
+index 8964f8b..36eb087 100644
+--- a/drivers/staging/media/solo6x10/solo6x10.h
++++ b/drivers/staging/media/solo6x10/solo6x10.h
+@@ -237,7 +237,7 @@ struct solo_dev {
+ 
+ 	/* P2M DMA Engine */
+ 	struct solo_p2m_dev	p2m_dev[SOLO_NR_P2M];
+-	atomic_t		p2m_count;
++	atomic_unchecked_t	p2m_count;
+ 	int			p2m_jiffies;
+ 	unsigned int		p2m_timeouts;
+ 
+diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
+index a0f4868..139f1fb 100644
+--- a/drivers/staging/octeon/ethernet-rx.c
++++ b/drivers/staging/octeon/ethernet-rx.c
+@@ -417,11 +417,11 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
+ 				/* Increment RX stats for virtual ports */
+ 				if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) {
+ #ifdef CONFIG_64BIT
+-					atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets);
+-					atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes);
++					atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets);
++					atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes);
+ #else
+-					atomic_add(1, (atomic_t *)&priv->stats.rx_packets);
+-					atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes);
++					atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets);
++					atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes);
+ #endif
+ 				}
+ 				netif_receive_skb(skb);
+@@ -432,9 +432,9 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
+ 					   dev->name);
+ 				*/
+ #ifdef CONFIG_64BIT
+-				atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped);
++				atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped);
+ #else
+-				atomic_add(1, (atomic_t *)&priv->stats.rx_dropped);
++				atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped);
+ #endif
+ 				dev_kfree_skb_irq(skb);
+ 			}
+diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
+index 089dc4b..c9a687e 100644
+--- a/drivers/staging/octeon/ethernet.c
++++ b/drivers/staging/octeon/ethernet.c
+@@ -253,11 +253,11 @@ static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
+ 		 * since the RX tasklet also increments it.
+ 		 */
+ #ifdef CONFIG_64BIT
+-		atomic64_add(rx_status.dropped_packets,
+-			     (atomic64_t *)&priv->stats.rx_dropped);
++		atomic64_add_unchecked(rx_status.dropped_packets,
++			     (atomic64_unchecked_t *)&priv->stats.rx_dropped);
+ #else
+-		atomic_add(rx_status.dropped_packets,
+-			     (atomic_t *)&priv->stats.rx_dropped);
++		atomic_add_unchecked(rx_status.dropped_packets,
++			     (atomic_unchecked_t *)&priv->stats.rx_dropped);
+ #endif
+ 	}
+ 
+diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h
+index c274b34..f84de76 100644
+--- a/drivers/staging/rtl8188eu/include/hal_intf.h
++++ b/drivers/staging/rtl8188eu/include/hal_intf.h
+@@ -271,7 +271,7 @@ struct hal_ops {
+ 	s32 (*c2h_handler)(struct adapter *padapter,
+ 			   struct c2h_evt_hdr *c2h_evt);
+ 	c2h_id_filter c2h_id_filter_ccx;
+-};
++} __no_const;
+ 
+ enum rt_eeprom_type {
+ 	EEPROM_93C46,
+diff --git a/drivers/staging/rtl8188eu/include/rtw_io.h b/drivers/staging/rtl8188eu/include/rtw_io.h
+index 3d1dfcc..ff5620a 100644
+--- a/drivers/staging/rtl8188eu/include/rtw_io.h
++++ b/drivers/staging/rtl8188eu/include/rtw_io.h
+@@ -126,7 +126,7 @@ struct _io_ops {
+ 	u32 (*_write_scsi)(struct intf_hdl *pintfhdl, u32 cnt, u8 *pmem);
+ 	void (*_read_port_cancel)(struct intf_hdl *pintfhdl);
+ 	void (*_write_port_cancel)(struct intf_hdl *pintfhdl);
+-};
++} __no_const;
+ 
+ struct io_req {
+ 	struct list_head list;
+diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
+index dc23395..cf7e9b1 100644
+--- a/drivers/staging/rtl8712/rtl871x_io.h
++++ b/drivers/staging/rtl8712/rtl871x_io.h
+@@ -108,7 +108,7 @@ struct	_io_ops {
+ 			  u8 *pmem);
+ 	u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+ 			   u8 *pmem);
+-};
++} __no_const;
+ 
+ struct io_req {
+ 	struct list_head list;
+diff --git a/drivers/staging/rts5139/rts51x_transport.c b/drivers/staging/rts5139/rts51x_transport.c
+index c172f4a..ad5aeb6 100644
+--- a/drivers/staging/rts5139/rts51x_transport.c
++++ b/drivers/staging/rts5139/rts51x_transport.c
+@@ -339,11 +339,18 @@ int rts51x_ctrl_transfer(struct rts51x_chip *chip, unsigned int pipe,
+ 			 void *data, u16 size, int timeout)
+ {
+ 	struct rts51x_usb *rts51x = chip->usb;
++	void *buf = kmalloc(size, GFP_KERNEL);
+ 	int result;
++	int ret;
++
++	if (buf == NULL)
++		TRACE_RET(chip, STATUS_ERROR);
+ 
+ 	RTS51X_DEBUGP("%s: rq=%02x rqtype=%02x value=%04x index=%02x len=%u\n",
+ 		       __func__, request, requesttype, value, index, size);
+ 
++	memcpy(buf, data, size);
++
+ 	/* fill in the devrequest structure */
+ 	rts51x->cr->bRequestType = requesttype;
+ 	rts51x->cr->bRequest = request;
+@@ -353,12 +360,17 @@ int rts51x_ctrl_transfer(struct rts51x_chip *chip, unsigned int pipe,
+ 
+ 	/* fill and submit the URB */
+ 	usb_fill_control_urb(rts51x->current_urb, rts51x->pusb_dev, pipe,
+-			     (unsigned char *)rts51x->cr, data, size,
++			     (unsigned char *)rts51x->cr, buf, size,
+ 			     urb_done_completion, NULL);
+ 	result = rts51x_msg_common(chip, rts51x->current_urb, timeout);
+ 
+-	return interpret_urb_result(chip, pipe, size, result,
++	ret = interpret_urb_result(chip, pipe, size, result,
+ 				    rts51x->current_urb->actual_length);
++	memcpy(data, buf, size);
++
++	kfree(buf);
++
++	return ret;
+ }
+ 
+ static int rts51x_clear_halt(struct rts51x_chip *chip, unsigned int pipe)
+@@ -535,17 +547,30 @@ static int rts51x_bulk_transfer_buf(struct rts51x_chip *chip,
+ 			     unsigned int *act_len, int timeout)
+ {
+ 	int result;
++	int ret;
++	void *newbuf = kmalloc(length, GFP_KERNEL);
++
++	if (newbuf == NULL)
++		TRACE_RET(chip, STATUS_ERROR);
++
++	memcpy(newbuf, buf, length);
+ 
+ 	/* fill and submit the URB */
+ 	usb_fill_bulk_urb(chip->usb->current_urb, chip->usb->pusb_dev, pipe,
+-			  buf, length, urb_done_completion, NULL);
++			  newbuf, length, urb_done_completion, NULL);
+ 	result = rts51x_msg_common(chip, chip->usb->current_urb, timeout);
+ 
+ 	/* store the actual length of the data transferred */
+ 	if (act_len)
+ 		*act_len = chip->usb->current_urb->actual_length;
+-	return interpret_urb_result(chip, pipe, length, result,
++	ret = interpret_urb_result(chip, pipe, length, result,
+ 				    chip->usb->current_urb->actual_length);
++
++	memcpy(buf, newbuf, length);
++
++	kfree(newbuf);
++
++	return ret;
+ }
+ 
+ int rts51x_transfer_data(struct rts51x_chip *chip, unsigned int pipe,
+@@ -624,11 +649,19 @@ int rts51x_get_epc_status(struct rts51x_chip *chip, u16 *status)
+ 	unsigned int pipe = RCV_INTR_PIPE(chip);
+ 	struct usb_host_endpoint *ep;
+ 	struct completion urb_done;
++	u16 *buf_status;
+ 	int result;
++	int ret;
+ 
+ 	if (!status)
+ 		TRACE_RET(chip, STATUS_ERROR);
+ 
++	buf_status = kmalloc(sizeof(*status), GFP_KERNEL);
++	if (buf_status == NULL)
++		TRACE_RET(chip, STATUS_ERROR);
++
++	*buf_status = *status;
++
+ 	/* set up data structures for the wakeup system */
+ 	init_completion(&urb_done);
+ 
+@@ -638,12 +671,17 @@ int rts51x_get_epc_status(struct rts51x_chip *chip, u16 *status)
+ 	/* Set interval to 10 here to match the endpoint descriptor,
+ 	 * the polling interval is controlled by the polling thread */
+ 	usb_fill_int_urb(chip->usb->intr_urb, chip->usb->pusb_dev, pipe,
+-			 status, 2, urb_done_completion, &urb_done, 10);
++			 buf_status, 2, urb_done_completion, &urb_done, 10);
+ 
+ 	result = rts51x_msg_common(chip, chip->usb->intr_urb, 100);
+ 
+-	return interpret_urb_result(chip, pipe, 2, result,
++	ret = interpret_urb_result(chip, pipe, 2, result,
+ 				    chip->usb->intr_urb->actual_length);
++	*status = *buf_status;
++
++	kfree(buf_status);
++
++	return ret;
+ }
+ 
+ u8 media_not_present[] = {
+diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c
+index 1f5088b..0e59820 100644
+--- a/drivers/staging/sbe-2t3e3/netdev.c
++++ b/drivers/staging/sbe-2t3e3/netdev.c
+@@ -51,7 +51,7 @@ static int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 	t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen);
+ 
+ 	if (rlen)
+-		if (copy_to_user(data, &resp, rlen))
++		if (rlen > sizeof resp || copy_to_user(data, &resp, rlen))
+ 			return -EFAULT;
+ 
+ 	return 0;
+diff --git a/drivers/staging/usbip/vhci.h b/drivers/staging/usbip/vhci.h
+index a863a98..d272795 100644
+--- a/drivers/staging/usbip/vhci.h
++++ b/drivers/staging/usbip/vhci.h
+@@ -83,7 +83,7 @@ struct vhci_hcd {
+ 	unsigned resuming:1;
+ 	unsigned long re_timeout;
+ 
+-	atomic_t seqnum;
++	atomic_unchecked_t seqnum;
+ 
+ 	/*
+ 	 * NOTE:
+diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
+index 72391ef..7c6717a 100644
+--- a/drivers/staging/usbip/vhci_hcd.c
++++ b/drivers/staging/usbip/vhci_hcd.c
+@@ -440,7 +440,7 @@ static void vhci_tx_urb(struct urb *urb)
+ 
+ 	spin_lock(&vdev->priv_lock);
+ 
+-	priv->seqnum = atomic_inc_return(&the_controller->seqnum);
++	priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
+ 	if (priv->seqnum == 0xffff)
+ 		dev_info(&urb->dev->dev, "seqnum max\n");
+ 
+@@ -686,7 +686,7 @@ static int vhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
+ 			return -ENOMEM;
+ 		}
+ 
+-		unlink->seqnum = atomic_inc_return(&the_controller->seqnum);
++		unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum);
+ 		if (unlink->seqnum == 0xffff)
+ 			pr_info("seqnum max\n");
+ 
+@@ -890,7 +890,7 @@ static int vhci_start(struct usb_hcd *hcd)
+ 		vdev->rhport = rhport;
+ 	}
+ 
+-	atomic_set(&vhci->seqnum, 0);
++	atomic_set_unchecked(&vhci->seqnum, 0);
+ 	spin_lock_init(&vhci->lock);
+ 
+ 	hcd->power_budget = 0; /* no limit */
+diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
+index d07fcb5..358e1e1 100644
+--- a/drivers/staging/usbip/vhci_rx.c
++++ b/drivers/staging/usbip/vhci_rx.c
+@@ -80,7 +80,7 @@ static void vhci_recv_ret_submit(struct vhci_device *vdev,
+ 	if (!urb) {
+ 		pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum);
+ 		pr_info("max seqnum %d\n",
+-			atomic_read(&the_controller->seqnum));
++			atomic_read_unchecked(&the_controller->seqnum));
+ 		usbip_event_add(ud, VDEV_EVENT_ERROR_TCP);
+ 		return;
+ 	}
+diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
+index 6eecd53..1025c8b 100644
+--- a/drivers/staging/vt6655/hostap.c
++++ b/drivers/staging/vt6655/hostap.c
+@@ -69,14 +69,13 @@ static int msglevel = MSG_LEVEL_INFO;
+  *
+  */
+ 
++static net_device_ops_no_const apdev_netdev_ops;
++
+ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
+ {
+ 	PSDevice apdev_priv;
+ 	struct net_device *dev = pDevice->dev;
+ 	int ret;
+-	const struct net_device_ops apdev_netdev_ops = {
+-		.ndo_start_xmit         = pDevice->tx_80211,
+-	};
+ 
+ 	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
+ 
+@@ -88,6 +87,8 @@ static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked)
+ 	*apdev_priv = *pDevice;
+ 	eth_hw_addr_inherit(pDevice->apdev, dev);
+ 
++	/* only half broken now */
++	apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
+ 	pDevice->apdev->netdev_ops = &apdev_netdev_ops;
+ 
+ 	pDevice->apdev->type = ARPHRD_IEEE80211;
+@@ -385,6 +386,9 @@ static int hostap_set_generic_element(PSDevice pDevice,
+ {
+ 	PSMgmtObject    pMgmt = pDevice->pMgmt;
+ 
++	if (param->u.generic_elem.len > sizeof(pMgmt->abyWPAIE))
++		return -EINVAL;
++
+ 	memcpy(pMgmt->abyWPAIE,
+ 	       param->u.generic_elem.data,
+ 	       param->u.generic_elem.len
+diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
+index 67ba48b..24e602f 100644
+--- a/drivers/staging/vt6656/hostap.c
++++ b/drivers/staging/vt6656/hostap.c
+@@ -60,14 +60,13 @@ static int          msglevel                =MSG_LEVEL_INFO;
+  *
+  */
+ 
++static net_device_ops_no_const apdev_netdev_ops;
++
+ static int hostap_enable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
+ {
+ 	struct vnt_private *apdev_priv;
+ 	struct net_device *dev = pDevice->dev;
+ 	int ret;
+-	const struct net_device_ops apdev_netdev_ops = {
+-		.ndo_start_xmit = pDevice->tx_80211,
+-	};
+ 
+     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name);
+ 
+@@ -79,6 +78,8 @@ static int hostap_enable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
+     *apdev_priv = *pDevice;
+ 	memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN);
+ 
++	/* only half broken now */
++	apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211;
+ 	pDevice->apdev->netdev_ops = &apdev_netdev_ops;
+ 
+ 	pDevice->apdev->type = ARPHRD_IEEE80211;
+diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
+index 24884ca..26c8220 100644
+--- a/drivers/target/sbp/sbp_target.c
++++ b/drivers/target/sbp/sbp_target.c
+@@ -62,7 +62,7 @@ static const u32 sbp_unit_directory_template[] = {
+ 
+ #define SESSION_MAINTENANCE_INTERVAL HZ
+ 
+-static atomic_t login_id = ATOMIC_INIT(0);
++static atomic_unchecked_t login_id = ATOMIC_INIT(0);
+ 
+ static void session_maintenance_work(struct work_struct *);
+ static int sbp_run_transaction(struct fw_card *, int, int, int, int,
+@@ -444,7 +444,7 @@ static void sbp_management_request_login(
+ 	login->lun = se_lun;
+ 	login->status_fifo_addr = sbp2_pointer_to_addr(&req->orb.status_fifo);
+ 	login->exclusive = LOGIN_ORB_EXCLUSIVE(be32_to_cpu(req->orb.misc));
+-	login->login_id = atomic_inc_return(&login_id);
++	login->login_id = atomic_inc_return_unchecked(&login_id);
+ 
+ 	login->tgt_agt = sbp_target_agent_register(login);
+ 	if (IS_ERR(login->tgt_agt)) {
+diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
+index 093b8cb..9f07935 100644
+--- a/drivers/target/target_core_device.c
++++ b/drivers/target/target_core_device.c
+@@ -1526,7 +1526,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
+ 	spin_lock_init(&dev->se_tmr_lock);
+ 	spin_lock_init(&dev->qf_cmd_lock);
+ 	sema_init(&dev->caw_sem, 1);
+-	atomic_set(&dev->dev_ordered_id, 0);
++	atomic_set_unchecked(&dev->dev_ordered_id, 0);
+ 	INIT_LIST_HEAD(&dev->t10_wwn.t10_vpd_list);
+ 	spin_lock_init(&dev->t10_wwn.t10_vpd_lock);
+ 	INIT_LIST_HEAD(&dev->t10_pr.registration_list);
+diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
+index 6fc3890..bf962ce 100644
+--- a/drivers/target/target_core_transport.c
++++ b/drivers/target/target_core_transport.c
+@@ -1154,7 +1154,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
+ 	 * Used to determine when ORDERED commands should go from
+ 	 * Dormant to Active status.
+ 	 */
+-	cmd->se_ordered_id = atomic_inc_return(&dev->dev_ordered_id);
++	cmd->se_ordered_id = atomic_inc_return_unchecked(&dev->dev_ordered_id);
+ 	smp_mb__after_atomic_inc();
+ 	pr_debug("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n",
+ 			cmd->se_ordered_id, cmd->sam_task_attr,
+diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
+index 04b1be7..5eff86d 100644
+--- a/drivers/thermal/of-thermal.c
++++ b/drivers/thermal/of-thermal.c
+@@ -30,6 +30,7 @@
+ #include <linux/err.h>
+ #include <linux/export.h>
+ #include <linux/string.h>
++#include <linux/mm.h>
+ 
+ #include "thermal_core.h"
+ 
+@@ -341,8 +342,10 @@ thermal_zone_of_add_sensor(struct device_node *zone,
+ 	tz->get_trend = get_trend;
+ 	tz->sensor_data = data;
+ 
+-	tzd->ops->get_temp = of_thermal_get_temp;
+-	tzd->ops->get_trend = of_thermal_get_trend;
++	pax_open_kernel();
++	*(void **)&tzd->ops->get_temp = of_thermal_get_temp;
++	*(void **)&tzd->ops->get_trend = of_thermal_get_trend;
++	pax_close_kernel();
+ 	mutex_unlock(&tzd->lock);
+ 
+ 	return tzd;
+@@ -461,8 +464,10 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
+ 		return;
+ 
+ 	mutex_lock(&tzd->lock);
+-	tzd->ops->get_temp = NULL;
+-	tzd->ops->get_trend = NULL;
++	pax_open_kernel();
++	*(void **)&tzd->ops->get_temp = NULL;
++	*(void **)&tzd->ops->get_trend = NULL;
++	pax_close_kernel();
+ 
+ 	tz->get_temp = NULL;
+ 	tz->get_trend = NULL;
+diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c
+index 081fd7e..6fb58a2 100644
+--- a/drivers/thermal/x86_pkg_temp_thermal.c
++++ b/drivers/thermal/x86_pkg_temp_thermal.c
+@@ -567,7 +567,7 @@ static int pkg_temp_thermal_cpu_callback(struct notifier_block *nfb,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block pkg_temp_thermal_notifier __refdata = {
++static struct notifier_block pkg_temp_thermal_notifier __refconst = {
+ 	.notifier_call = pkg_temp_thermal_cpu_callback,
+ };
+ 
+diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
+index a57bb5a..1f727d33 100644
+--- a/drivers/tty/cyclades.c
++++ b/drivers/tty/cyclades.c
+@@ -1570,10 +1570,10 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
+ 	printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
+ 			info->port.count);
+ #endif
+-	info->port.count++;
++	atomic_inc(&info->port.count);
+ #ifdef CY_DEBUG_COUNT
+ 	printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
+-		current->pid, info->port.count);
++		current->pid, atomic_read(&info->port.count));
+ #endif
+ 
+ 	/*
+@@ -3974,7 +3974,7 @@ static int cyclades_proc_show(struct seq_file *m, void *v)
+ 		for (j = 0; j < cy_card[i].nports; j++) {
+ 			info = &cy_card[i].ports[j];
+ 
+-			if (info->port.count) {
++			if (atomic_read(&info->port.count)) {
+ 				/* XXX is the ldisc num worth this? */
+ 				struct tty_struct *tty;
+ 				struct tty_ldisc *ld;
+diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
+index 0ff7fda..dbc7d52 100644
+--- a/drivers/tty/hvc/hvc_console.c
++++ b/drivers/tty/hvc/hvc_console.c
+@@ -342,7 +342,7 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
+ 
+ 	spin_lock_irqsave(&hp->port.lock, flags);
+ 	/* Check and then increment for fast path open. */
+-	if (hp->port.count++ > 0) {
++	if (atomic_inc_return(&hp->port.count) > 1) {
+ 		spin_unlock_irqrestore(&hp->port.lock, flags);
+ 		hvc_kick();
+ 		return 0;
+@@ -397,7 +397,7 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
+ 
+ 	spin_lock_irqsave(&hp->port.lock, flags);
+ 
+-	if (--hp->port.count == 0) {
++	if (atomic_dec_return(&hp->port.count) == 0) {
+ 		spin_unlock_irqrestore(&hp->port.lock, flags);
+ 		/* We are done with the tty pointer now. */
+ 		tty_port_tty_set(&hp->port, NULL);
+@@ -419,9 +419,9 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
+ 		 */
+ 		tty_wait_until_sent_from_close(tty, HVC_CLOSE_WAIT);
+ 	} else {
+-		if (hp->port.count < 0)
++		if (atomic_read(&hp->port.count) < 0)
+ 			printk(KERN_ERR "hvc_close %X: oops, count is %d\n",
+-				hp->vtermno, hp->port.count);
++				hp->vtermno, atomic_read(&hp->port.count));
+ 		spin_unlock_irqrestore(&hp->port.lock, flags);
+ 	}
+ }
+@@ -451,12 +451,12 @@ static void hvc_hangup(struct tty_struct *tty)
+ 	 * open->hangup case this can be called after the final close so prevent
+ 	 * that from happening for now.
+ 	 */
+-	if (hp->port.count <= 0) {
++	if (atomic_read(&hp->port.count) <= 0) {
+ 		spin_unlock_irqrestore(&hp->port.lock, flags);
+ 		return;
+ 	}
+ 
+-	hp->port.count = 0;
++	atomic_set(&hp->port.count, 0);
+ 	spin_unlock_irqrestore(&hp->port.lock, flags);
+ 	tty_port_tty_set(&hp->port, NULL);
+ 
+@@ -504,7 +504,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
+ 		return -EPIPE;
+ 
+ 	/* FIXME what's this (unprotected) check for? */
+-	if (hp->port.count <= 0)
++	if (atomic_read(&hp->port.count) <= 0)
+ 		return -EIO;
+ 
+ 	spin_lock_irqsave(&hp->lock, flags);
+diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
+index 81e939e..95ead10 100644
+--- a/drivers/tty/hvc/hvcs.c
++++ b/drivers/tty/hvc/hvcs.c
+@@ -83,6 +83,7 @@
+ #include <asm/hvcserver.h>
+ #include <asm/uaccess.h>
+ #include <asm/vio.h>
++#include <asm/local.h>
+ 
+ /*
+  * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00).
+@@ -416,7 +417,7 @@ static ssize_t hvcs_vterm_state_store(struct device *dev, struct device_attribut
+ 
+ 	spin_lock_irqsave(&hvcsd->lock, flags);
+ 
+-	if (hvcsd->port.count > 0) {
++	if (atomic_read(&hvcsd->port.count) > 0) {
+ 		spin_unlock_irqrestore(&hvcsd->lock, flags);
+ 		printk(KERN_INFO "HVCS: vterm state unchanged.  "
+ 				"The hvcs device node is still in use.\n");
+@@ -1127,7 +1128,7 @@ static int hvcs_install(struct tty_driver *driver, struct tty_struct *tty)
+ 		}
+ 	}
+ 
+-	hvcsd->port.count = 0;
++	atomic_set(&hvcsd->port.count, 0);
+ 	hvcsd->port.tty = tty;
+ 	tty->driver_data = hvcsd;
+ 
+@@ -1180,7 +1181,7 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
+ 	unsigned long flags;
+ 
+ 	spin_lock_irqsave(&hvcsd->lock, flags);
+-	hvcsd->port.count++;
++	atomic_inc(&hvcsd->port.count);
+ 	hvcsd->todo_mask |= HVCS_SCHED_READ;
+ 	spin_unlock_irqrestore(&hvcsd->lock, flags);
+ 
+@@ -1216,7 +1217,7 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
+ 	hvcsd = tty->driver_data;
+ 
+ 	spin_lock_irqsave(&hvcsd->lock, flags);
+-	if (--hvcsd->port.count == 0) {
++	if (atomic_dec_and_test(&hvcsd->port.count)) {
+ 
+ 		vio_disable_interrupts(hvcsd->vdev);
+ 
+@@ -1241,10 +1242,10 @@ static void hvcs_close(struct tty_struct *tty, struct file *filp)
+ 
+ 		free_irq(irq, hvcsd);
+ 		return;
+-	} else if (hvcsd->port.count < 0) {
++	} else if (atomic_read(&hvcsd->port.count) < 0) {
+ 		printk(KERN_ERR "HVCS: vty-server@%X open_count: %d"
+ 				" is missmanaged.\n",
+-		hvcsd->vdev->unit_address, hvcsd->port.count);
++		hvcsd->vdev->unit_address, atomic_read(&hvcsd->port.count));
+ 	}
+ 
+ 	spin_unlock_irqrestore(&hvcsd->lock, flags);
+@@ -1266,7 +1267,7 @@ static void hvcs_hangup(struct tty_struct * tty)
+ 
+ 	spin_lock_irqsave(&hvcsd->lock, flags);
+ 	/* Preserve this so that we know how many kref refs to put */
+-	temp_open_count = hvcsd->port.count;
++	temp_open_count = atomic_read(&hvcsd->port.count);
+ 
+ 	/*
+ 	 * Don't kref put inside the spinlock because the destruction
+@@ -1281,7 +1282,7 @@ static void hvcs_hangup(struct tty_struct * tty)
+ 	tty->driver_data = NULL;
+ 	hvcsd->port.tty = NULL;
+ 
+-	hvcsd->port.count = 0;
++	atomic_set(&hvcsd->port.count, 0);
+ 
+ 	/* This will drop any buffered data on the floor which is OK in a hangup
+ 	 * scenario. */
+@@ -1352,7 +1353,7 @@ static int hvcs_write(struct tty_struct *tty,
+ 	 * the middle of a write operation?  This is a crummy place to do this
+ 	 * but we want to keep it all in the spinlock.
+ 	 */
+-	if (hvcsd->port.count <= 0) {
++	if (atomic_read(&hvcsd->port.count) <= 0) {
+ 		spin_unlock_irqrestore(&hvcsd->lock, flags);
+ 		return -ENODEV;
+ 	}
+@@ -1426,7 +1427,7 @@ static int hvcs_write_room(struct tty_struct *tty)
+ {
+ 	struct hvcs_struct *hvcsd = tty->driver_data;
+ 
+-	if (!hvcsd || hvcsd->port.count <= 0)
++	if (!hvcsd || atomic_read(&hvcsd->port.count) <= 0)
+ 		return 0;
+ 
+ 	return HVCS_BUFF_LEN - hvcsd->chars_in_buffer;
+diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
+index 4190199..06d5bfa 100644
+--- a/drivers/tty/hvc/hvsi.c
++++ b/drivers/tty/hvc/hvsi.c
+@@ -85,7 +85,7 @@ struct hvsi_struct {
+ 	int n_outbuf;
+ 	uint32_t vtermno;
+ 	uint32_t virq;
+-	atomic_t seqno; /* HVSI packet sequence number */
++	atomic_unchecked_t seqno; /* HVSI packet sequence number */
+ 	uint16_t mctrl;
+ 	uint8_t state;  /* HVSI protocol state */
+ 	uint8_t flags;
+@@ -295,7 +295,7 @@ static int hvsi_version_respond(struct hvsi_struct *hp, uint16_t query_seqno)
+ 
+ 	packet.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
+ 	packet.hdr.len = sizeof(struct hvsi_query_response);
+-	packet.hdr.seqno = atomic_inc_return(&hp->seqno);
++	packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
+ 	packet.verb = VSV_SEND_VERSION_NUMBER;
+ 	packet.u.version = HVSI_VERSION;
+ 	packet.query_seqno = query_seqno+1;
+@@ -555,7 +555,7 @@ static int hvsi_query(struct hvsi_struct *hp, uint16_t verb)
+ 
+ 	packet.hdr.type = VS_QUERY_PACKET_HEADER;
+ 	packet.hdr.len = sizeof(struct hvsi_query);
+-	packet.hdr.seqno = atomic_inc_return(&hp->seqno);
++	packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
+ 	packet.verb = verb;
+ 
+ 	pr_debug("%s: sending %i bytes\n", __func__, packet.hdr.len);
+@@ -597,7 +597,7 @@ static int hvsi_set_mctrl(struct hvsi_struct *hp, uint16_t mctrl)
+ 	int wrote;
+ 
+ 	packet.hdr.type = VS_CONTROL_PACKET_HEADER,
+-	packet.hdr.seqno = atomic_inc_return(&hp->seqno);
++	packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
+ 	packet.hdr.len = sizeof(struct hvsi_control);
+ 	packet.verb = VSV_SET_MODEM_CTL;
+ 	packet.mask = HVSI_TSDTR;
+@@ -680,7 +680,7 @@ static int hvsi_put_chars(struct hvsi_struct *hp, const char *buf, int count)
+ 	BUG_ON(count > HVSI_MAX_OUTGOING_DATA);
+ 
+ 	packet.hdr.type = VS_DATA_PACKET_HEADER;
+-	packet.hdr.seqno = atomic_inc_return(&hp->seqno);
++	packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
+ 	packet.hdr.len = count + sizeof(struct hvsi_header);
+ 	memcpy(&packet.data, buf, count);
+ 
+@@ -697,7 +697,7 @@ static void hvsi_close_protocol(struct hvsi_struct *hp)
+ 	struct hvsi_control packet __ALIGNED__;
+ 
+ 	packet.hdr.type = VS_CONTROL_PACKET_HEADER;
+-	packet.hdr.seqno = atomic_inc_return(&hp->seqno);
++	packet.hdr.seqno = atomic_inc_return_unchecked(&hp->seqno);
+ 	packet.hdr.len = 6;
+ 	packet.verb = VSV_CLOSE_PROTOCOL;
+ 
+@@ -725,7 +725,7 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
+ 
+ 	tty_port_tty_set(&hp->port, tty);
+ 	spin_lock_irqsave(&hp->lock, flags);
+-	hp->port.count++;
++	atomic_inc(&hp->port.count);
+ 	atomic_set(&hp->seqno, 0);
+ 	h_vio_signal(hp->vtermno, VIO_IRQ_ENABLE);
+ 	spin_unlock_irqrestore(&hp->lock, flags);
+@@ -782,7 +782,7 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
+ 
+ 	spin_lock_irqsave(&hp->lock, flags);
+ 
+-	if (--hp->port.count == 0) {
++	if (atomic_dec_return(&hp->port.count) == 0) {
+ 		tty_port_tty_set(&hp->port, NULL);
+ 		hp->inbuf_end = hp->inbuf; /* discard remaining partial packets */
+ 
+@@ -815,9 +815,9 @@ static void hvsi_close(struct tty_struct *tty, struct file *filp)
+ 
+ 			spin_lock_irqsave(&hp->lock, flags);
+ 		}
+-	} else if (hp->port.count < 0)
++	} else if (atomic_read(&hp->port.count) < 0)
+ 		printk(KERN_ERR "hvsi_close %lu: oops, count is %d\n",
+-		       hp - hvsi_ports, hp->port.count);
++		       hp - hvsi_ports, atomic_read(&hp->port.count));
+ 
+ 	spin_unlock_irqrestore(&hp->lock, flags);
+ }
+@@ -832,7 +832,7 @@ static void hvsi_hangup(struct tty_struct *tty)
+ 	tty_port_tty_set(&hp->port, NULL);
+ 
+ 	spin_lock_irqsave(&hp->lock, flags);
+-	hp->port.count = 0;
++	atomic_set(&hp->port.count, 0);
+ 	hp->n_outbuf = 0;
+ 	spin_unlock_irqrestore(&hp->lock, flags);
+ }
+diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
+index 7ae6c29..05c6dba 100644
+--- a/drivers/tty/hvc/hvsi_lib.c
++++ b/drivers/tty/hvc/hvsi_lib.c
+@@ -8,7 +8,7 @@
+ 
+ static int hvsi_send_packet(struct hvsi_priv *pv, struct hvsi_header *packet)
+ {
+-	packet->seqno = cpu_to_be16(atomic_inc_return(&pv->seqno));
++	packet->seqno = cpu_to_be16(atomic_inc_return_unchecked(&pv->seqno));
+ 
+ 	/* Assumes that always succeeds, works in practice */
+ 	return pv->put_chars(pv->termno, (char *)packet, packet->len);
+@@ -20,7 +20,7 @@ static void hvsi_start_handshake(struct hvsi_priv *pv)
+ 
+ 	/* Reset state */
+ 	pv->established = 0;
+-	atomic_set(&pv->seqno, 0);
++	atomic_set_unchecked(&pv->seqno, 0);
+ 
+ 	pr_devel("HVSI@%x: Handshaking started\n", pv->termno);
+ 
+diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
+index 17ee3bf..8d2520d 100644
+--- a/drivers/tty/ipwireless/tty.c
++++ b/drivers/tty/ipwireless/tty.c
+@@ -28,6 +28,7 @@
+ #include <linux/tty_driver.h>
+ #include <linux/tty_flip.h>
+ #include <linux/uaccess.h>
++#include <asm/local.h>
+ 
+ #include "tty.h"
+ #include "network.h"
+@@ -98,10 +99,10 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
+ 		mutex_unlock(&tty->ipw_tty_mutex);
+ 		return -ENODEV;
+ 	}
+-	if (tty->port.count == 0)
++	if (atomic_read(&tty->port.count) == 0)
+ 		tty->tx_bytes_queued = 0;
+ 
+-	tty->port.count++;
++	atomic_inc(&tty->port.count);
+ 
+ 	tty->port.tty = linux_tty;
+ 	linux_tty->driver_data = tty;
+@@ -117,9 +118,7 @@ static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
+ 
+ static void do_ipw_close(struct ipw_tty *tty)
+ {
+-	tty->port.count--;
+-
+-	if (tty->port.count == 0) {
++	if (atomic_dec_return(&tty->port.count) == 0) {
+ 		struct tty_struct *linux_tty = tty->port.tty;
+ 
+ 		if (linux_tty != NULL) {
+@@ -140,7 +139,7 @@ static void ipw_hangup(struct tty_struct *linux_tty)
+ 		return;
+ 
+ 	mutex_lock(&tty->ipw_tty_mutex);
+-	if (tty->port.count == 0) {
++	if (atomic_read(&tty->port.count) == 0) {
+ 		mutex_unlock(&tty->ipw_tty_mutex);
+ 		return;
+ 	}
+@@ -163,7 +162,7 @@ void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
+ 
+ 	mutex_lock(&tty->ipw_tty_mutex);
+ 
+-	if (!tty->port.count) {
++	if (!atomic_read(&tty->port.count)) {
+ 		mutex_unlock(&tty->ipw_tty_mutex);
+ 		return;
+ 	}
+@@ -202,7 +201,7 @@ static int ipw_write(struct tty_struct *linux_tty,
+ 		return -ENODEV;
+ 
+ 	mutex_lock(&tty->ipw_tty_mutex);
+-	if (!tty->port.count) {
++	if (!atomic_read(&tty->port.count)) {
+ 		mutex_unlock(&tty->ipw_tty_mutex);
+ 		return -EINVAL;
+ 	}
+@@ -242,7 +241,7 @@ static int ipw_write_room(struct tty_struct *linux_tty)
+ 	if (!tty)
+ 		return -ENODEV;
+ 
+-	if (!tty->port.count)
++	if (!atomic_read(&tty->port.count))
+ 		return -EINVAL;
+ 
+ 	room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
+@@ -284,7 +283,7 @@ static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
+ 	if (!tty)
+ 		return 0;
+ 
+-	if (!tty->port.count)
++	if (!atomic_read(&tty->port.count))
+ 		return 0;
+ 
+ 	return tty->tx_bytes_queued;
+@@ -365,7 +364,7 @@ static int ipw_tiocmget(struct tty_struct *linux_tty)
+ 	if (!tty)
+ 		return -ENODEV;
+ 
+-	if (!tty->port.count)
++	if (!atomic_read(&tty->port.count))
+ 		return -EINVAL;
+ 
+ 	return get_control_lines(tty);
+@@ -381,7 +380,7 @@ ipw_tiocmset(struct tty_struct *linux_tty,
+ 	if (!tty)
+ 		return -ENODEV;
+ 
+-	if (!tty->port.count)
++	if (!atomic_read(&tty->port.count))
+ 		return -EINVAL;
+ 
+ 	return set_control_lines(tty, set, clear);
+@@ -395,7 +394,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
+ 	if (!tty)
+ 		return -ENODEV;
+ 
+-	if (!tty->port.count)
++	if (!atomic_read(&tty->port.count))
+ 		return -EINVAL;
+ 
+ 	/* FIXME: Exactly how is the tty object locked here .. */
+@@ -551,7 +550,7 @@ void ipwireless_tty_free(struct ipw_tty *tty)
+ 				 * are gone */
+ 				mutex_lock(&ttyj->ipw_tty_mutex);
+ 			}
+-			while (ttyj->port.count)
++			while (atomic_read(&ttyj->port.count))
+ 				do_ipw_close(ttyj);
+ 			ipwireless_disassociate_network_ttys(network,
+ 							     ttyj->channel_idx);
+diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
+index 1deaca4..c8582d4 100644
+--- a/drivers/tty/moxa.c
++++ b/drivers/tty/moxa.c
+@@ -1189,7 +1189,7 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
+ 	}
+ 
+ 	ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
+-	ch->port.count++;
++	atomic_inc(&ch->port.count);
+ 	tty->driver_data = ch;
+ 	tty_port_tty_set(&ch->port, tty);
+ 	mutex_lock(&ch->port.mutex);
+diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
+index 5bfd807..337352af 100644
+--- a/drivers/tty/n_gsm.c
++++ b/drivers/tty/n_gsm.c
+@@ -1644,7 +1644,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
+ 	spin_lock_init(&dlci->lock);
+ 	mutex_init(&dlci->mutex);
+ 	dlci->fifo = &dlci->_fifo;
+-	if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) {
++	if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) {
+ 		kfree(dlci);
+ 		return NULL;
+ 	}
+@@ -2954,7 +2954,7 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
+ 	struct gsm_dlci *dlci = tty->driver_data;
+ 	struct tty_port *port = &dlci->port;
+ 
+-	port->count++;
++	atomic_inc(&port->count);
+ 	tty_port_tty_set(port, tty);
+ 
+ 	dlci->modem_rx = 0;
+diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
+index 8195190..46537ed 100644
+--- a/drivers/tty/n_tty.c
++++ b/drivers/tty/n_tty.c
+@@ -115,7 +115,7 @@ struct n_tty_data {
+ 	int minimum_to_wake;
+ 
+ 	/* consumer-published */
+-	size_t read_tail;
++	size_t read_tail __intentional_overflow(-1);
+ 	size_t line_start;
+ 
+ 	/* protected by output lock */
+@@ -2589,6 +2589,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ops *ops)
+ {
+ 	*ops = tty_ldisc_N_TTY;
+ 	ops->owner = NULL;
+-	ops->refcount = ops->flags = 0;
++	atomic_set(&ops->refcount, 0);
++	ops->flags = 0;
+ }
+ EXPORT_SYMBOL_GPL(n_tty_inherit_ops);
+diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
+index e49616e..d23c58d 100644
+--- a/drivers/tty/pty.c
++++ b/drivers/tty/pty.c
+@@ -793,8 +793,10 @@ static void __init unix98_pty_init(void)
+ 		panic("Couldn't register Unix98 pts driver");
+ 
+ 	/* Now create the /dev/ptmx special device */
++	pax_open_kernel();
+ 	tty_default_fops(&ptmx_fops);
+-	ptmx_fops.open = ptmx_open;
++	*(void **)&ptmx_fops.open = ptmx_open;
++	pax_close_kernel();
+ 
+ 	cdev_init(&ptmx_cdev, &ptmx_fops);
+ 	if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
+diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
+index 383c4c7..d408e21 100644
+--- a/drivers/tty/rocket.c
++++ b/drivers/tty/rocket.c
+@@ -914,7 +914,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
+ 	tty->driver_data = info;
+ 	tty_port_tty_set(port, tty);
+ 
+-	if (port->count++ == 0) {
++	if (atomic_inc_return(&port->count) == 1) {
+ 		atomic_inc(&rp_num_ports_open);
+ 
+ #ifdef ROCKET_DEBUG_OPEN
+@@ -923,7 +923,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
+ #endif
+ 	}
+ #ifdef ROCKET_DEBUG_OPEN
+-	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
++	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, atomic-read(&info->port.count));
+ #endif
+ 
+ 	/*
+@@ -1515,7 +1515,7 @@ static void rp_hangup(struct tty_struct *tty)
+ 		spin_unlock_irqrestore(&info->port.lock, flags);
+ 		return;
+ 	}
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		atomic_dec(&rp_num_ports_open);
+ 	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
+ 	spin_unlock_irqrestore(&info->port.lock, flags);
+diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
+index 1274499..f541382 100644
+--- a/drivers/tty/serial/ioc4_serial.c
++++ b/drivers/tty/serial/ioc4_serial.c
+@@ -437,7 +437,7 @@ struct ioc4_soft {
+ 		} is_intr_info[MAX_IOC4_INTR_ENTS];
+ 
+ 		/* Number of entries active in the above array */
+-		atomic_t is_num_intrs;
++		atomic_unchecked_t is_num_intrs;
+ 	} is_intr_type[IOC4_NUM_INTR_TYPES];
+ 
+ 	/* is_ir_lock must be held while
+@@ -974,7 +974,7 @@ intr_connect(struct ioc4_soft *soft, int type,
+ 	BUG_ON(!((type == IOC4_SIO_INTR_TYPE)
+ 	       || (type == IOC4_OTHER_INTR_TYPE)));
+ 
+-	i = atomic_inc_return(&soft-> is_intr_type[type].is_num_intrs) - 1;
++	i = atomic_inc_return_unchecked(&soft-> is_intr_type[type].is_num_intrs) - 1;
+ 	BUG_ON(!(i < MAX_IOC4_INTR_ENTS || (printk("i %d\n", i), 0)));
+ 
+ 	/* Save off the lower level interrupt handler */
+@@ -1001,7 +1001,7 @@ static irqreturn_t ioc4_intr(int irq, void *arg)
+ 
+ 	soft = arg;
+ 	for (intr_type = 0; intr_type < IOC4_NUM_INTR_TYPES; intr_type++) {
+-		num_intrs = (int)atomic_read(
++		num_intrs = (int)atomic_read_unchecked(
+ 				&soft->is_intr_type[intr_type].is_num_intrs);
+ 
+ 		this_mir = this_ir = pending_intrs(soft, intr_type);
+diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
+index a260cde..6b2b5ce 100644
+--- a/drivers/tty/serial/kgdboc.c
++++ b/drivers/tty/serial/kgdboc.c
+@@ -24,8 +24,9 @@
+ #define MAX_CONFIG_LEN		40
+ 
+ static struct kgdb_io		kgdboc_io_ops;
++static struct kgdb_io		kgdboc_io_ops_console;
+ 
+-/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */
++/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */
+ static int configured		= -1;
+ 
+ static char config[MAX_CONFIG_LEN];
+@@ -151,6 +152,8 @@ static void cleanup_kgdboc(void)
+ 	kgdboc_unregister_kbd();
+ 	if (configured == 1)
+ 		kgdb_unregister_io_module(&kgdboc_io_ops);
++	else if (configured == 2)
++		kgdb_unregister_io_module(&kgdboc_io_ops_console);
+ }
+ 
+ static int configure_kgdboc(void)
+@@ -160,13 +163,13 @@ static int configure_kgdboc(void)
+ 	int err;
+ 	char *cptr = config;
+ 	struct console *cons;
++	int is_console = 0;
+ 
+ 	err = kgdboc_option_setup(config);
+ 	if (err || !strlen(config) || isspace(config[0]))
+ 		goto noconfig;
+ 
+ 	err = -ENODEV;
+-	kgdboc_io_ops.is_console = 0;
+ 	kgdb_tty_driver = NULL;
+ 
+ 	kgdboc_use_kms = 0;
+@@ -187,7 +190,7 @@ static int configure_kgdboc(void)
+ 		int idx;
+ 		if (cons->device && cons->device(cons, &idx) == p &&
+ 		    idx == tty_line) {
+-			kgdboc_io_ops.is_console = 1;
++			is_console = 1;
+ 			break;
+ 		}
+ 		cons = cons->next;
+@@ -197,7 +200,13 @@ static int configure_kgdboc(void)
+ 	kgdb_tty_line = tty_line;
+ 
+ do_register:
+-	err = kgdb_register_io_module(&kgdboc_io_ops);
++	if (is_console) {
++		err = kgdb_register_io_module(&kgdboc_io_ops_console);
++		configured = 2;
++	} else {
++		err = kgdb_register_io_module(&kgdboc_io_ops);
++		configured = 1;
++	}
+ 	if (err)
+ 		goto noconfig;
+ 
+@@ -205,8 +214,6 @@ do_register:
+ 	if (err)
+ 		goto nmi_con_failed;
+ 
+-	configured = 1;
+-
+ 	return 0;
+ 
+ nmi_con_failed:
+@@ -223,7 +230,7 @@ noconfig:
+ static int __init init_kgdboc(void)
+ {
+ 	/* Already configured? */
+-	if (configured == 1)
++	if (configured >= 1)
+ 		return 0;
+ 
+ 	return configure_kgdboc();
+@@ -272,7 +279,7 @@ static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
+ 	if (config[len - 1] == '\n')
+ 		config[len - 1] = '\0';
+ 
+-	if (configured == 1)
++	if (configured >= 1)
+ 		cleanup_kgdboc();
+ 
+ 	/* Go and configure with the new params. */
+@@ -312,6 +319,15 @@ static struct kgdb_io kgdboc_io_ops = {
+ 	.post_exception		= kgdboc_post_exp_handler,
+ };
+ 
++static struct kgdb_io kgdboc_io_ops_console = {
++	.name			= "kgdboc",
++	.read_char		= kgdboc_get_char,
++	.write_char		= kgdboc_put_char,
++	.pre_exception		= kgdboc_pre_exp_handler,
++	.post_exception		= kgdboc_post_exp_handler,
++	.is_console		= 1
++};
++
+ #ifdef CONFIG_KGDB_SERIAL_CONSOLE
+ /* This is only available if kgdboc is a built in for early debugging */
+ static int __init kgdboc_early_init(char *opt)
+diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
+index c0f2b3e..7e3f80c 100644
+--- a/drivers/tty/serial/msm_serial.c
++++ b/drivers/tty/serial/msm_serial.c
+@@ -897,7 +897,7 @@ static struct uart_driver msm_uart_driver = {
+ 	.cons = MSM_CONSOLE,
+ };
+ 
+-static atomic_t msm_uart_next_id = ATOMIC_INIT(0);
++static atomic_unchecked_t msm_uart_next_id = ATOMIC_INIT(0);
+ 
+ static const struct of_device_id msm_uartdm_table[] = {
+ 	{ .compatible = "qcom,msm-uartdm" },
+@@ -912,7 +912,7 @@ static int __init msm_serial_probe(struct platform_device *pdev)
+ 	int irq;
+ 
+ 	if (pdev->id == -1)
+-		pdev->id = atomic_inc_return(&msm_uart_next_id) - 1;
++		pdev->id = atomic_inc_return_unchecked(&msm_uart_next_id) - 1;
+ 
+ 	if (unlikely(pdev->id < 0 || pdev->id >= UART_NR))
+ 		return -ENXIO;
+diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
+index 7d3a3f5..0ac875e 100644
+--- a/drivers/tty/serial/samsung.c
++++ b/drivers/tty/serial/samsung.c
+@@ -463,11 +463,16 @@ static void s3c24xx_serial_shutdown(struct uart_port *port)
+ 	}
+ }
+ 
++static int s3c64xx_serial_startup(struct uart_port *port);
+ static int s3c24xx_serial_startup(struct uart_port *port)
+ {
+ 	struct s3c24xx_uart_port *ourport = to_ourport(port);
+ 	int ret;
+ 
++	/* Startup sequence is different for s3c64xx and higher SoC's */
++	if (s3c24xx_serial_has_interrupt_mask(port))
++		return s3c64xx_serial_startup(port);
++
+ 	dbg("s3c24xx_serial_startup: port=%p (%08lx,%p)\n",
+ 	    port->mapbase, port->membase);
+ 
+@@ -1145,10 +1150,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
+ 	/* setup info for port */
+ 	port->dev	= &platdev->dev;
+ 
+-	/* Startup sequence is different for s3c64xx and higher SoC's */
+-	if (s3c24xx_serial_has_interrupt_mask(port))
+-		s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
+-
+ 	port->uartclk = 1;
+ 
+ 	if (cfg->uart_flags & UPF_CONS_FLOW) {
+diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
+index 27b5554..3075055 100644
+--- a/drivers/tty/serial/serial_core.c
++++ b/drivers/tty/serial/serial_core.c
+@@ -1451,7 +1451,7 @@ static void uart_hangup(struct tty_struct *tty)
+ 		uart_flush_buffer(tty);
+ 		uart_shutdown(tty, state);
+ 		spin_lock_irqsave(&port->lock, flags);
+-		port->count = 0;
++		atomic_set(&port->count, 0);
+ 		clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
+ 		spin_unlock_irqrestore(&port->lock, flags);
+ 		tty_port_tty_set(port, NULL);
+@@ -1547,7 +1547,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
+ 		goto end;
+ 	}
+ 
+-	port->count++;
++	atomic_inc(&port->count);
+ 	if (!state->uart_port || state->uart_port->flags & UPF_DEAD) {
+ 		retval = -ENXIO;
+ 		goto err_dec_count;
+@@ -1575,7 +1575,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
+ 	/*
+ 	 * Make sure the device is in D0 state.
+ 	 */
+-	if (port->count == 1)
++	if (atomic_read(&port->count) == 1)
+ 		uart_change_pm(state, UART_PM_STATE_ON);
+ 
+ 	/*
+@@ -1593,7 +1593,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
+ end:
+ 	return retval;
+ err_dec_count:
+-	port->count--;
++	atomic_dec(&port->count);
+ 	mutex_unlock(&port->mutex);
+ 	goto end;
+ }
+diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
+index 5ae14b4..2c1288f 100644
+--- a/drivers/tty/synclink.c
++++ b/drivers/tty/synclink.c
+@@ -3090,7 +3090,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
+ 	
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
+-			 __FILE__,__LINE__, info->device_name, info->port.count);
++			 __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
+ 
+ 	if (tty_port_close_start(&info->port, tty, filp) == 0)
+ 		goto cleanup;
+@@ -3108,7 +3108,7 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
+ cleanup:			
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
+-			tty->driver->name, info->port.count);
++			tty->driver->name, atomic_read(&info->port.count));
+ 			
+ }	/* end of mgsl_close() */
+ 
+@@ -3207,8 +3207,8 @@ static void mgsl_hangup(struct tty_struct *tty)
+ 
+ 	mgsl_flush_buffer(tty);
+ 	shutdown(info);
+-	
+-	info->port.count = 0;	
++
++	atomic_set(&info->port.count, 0);
+ 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ 	info->port.tty = NULL;
+ 
+@@ -3297,12 +3297,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
+ 	
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):block_til_ready before block on %s count=%d\n",
+-			 __FILE__,__LINE__, tty->driver->name, port->count );
++			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 	spin_lock_irqsave(&info->irq_spinlock, flags);
+ 	if (!tty_hung_up_p(filp)) {
+ 		extra_count = true;
+-		port->count--;
++		atomic_dec(&port->count);
+ 	}
+ 	spin_unlock_irqrestore(&info->irq_spinlock, flags);
+ 	port->blocked_open++;
+@@ -3331,7 +3331,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
+ 		
+ 		if (debug_level >= DEBUG_LEVEL_INFO)
+ 			printk("%s(%d):block_til_ready blocking on %s count=%d\n",
+-				 __FILE__,__LINE__, tty->driver->name, port->count );
++				 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
+ 				 
+ 		tty_unlock(tty);
+ 		schedule();
+@@ -3343,12 +3343,12 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
+ 	
+ 	/* FIXME: Racy on hangup during close wait */
+ 	if (extra_count)
+-		port->count++;
++		atomic_inc(&port->count);
+ 	port->blocked_open--;
+ 	
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
+-			 __FILE__,__LINE__, tty->driver->name, port->count );
++			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
+ 			 
+ 	if (!retval)
+ 		port->flags |= ASYNC_NORMAL_ACTIVE;
+@@ -3400,7 +3400,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
+ 		
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
+-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
++			 __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
+ 
+ 	/* If port is closing, signal caller to try again */
+ 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+@@ -3419,10 +3419,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
+ 		spin_unlock_irqrestore(&info->netlock, flags);
+ 		goto cleanup;
+ 	}
+-	info->port.count++;
++	atomic_inc(&info->port.count);
+ 	spin_unlock_irqrestore(&info->netlock, flags);
+ 
+-	if (info->port.count == 1) {
++	if (atomic_read(&info->port.count) == 1) {
+ 		/* 1st open on this device, init hardware */
+ 		retval = startup(info);
+ 		if (retval < 0)
+@@ -3446,8 +3446,8 @@ cleanup:
+ 	if (retval) {
+ 		if (tty->count == 1)
+ 			info->port.tty = NULL; /* tty layer will release tty struct */
+-		if(info->port.count)
+-			info->port.count--;
++		if (atomic_read(&info->port.count))
++			atomic_dec(&info->port.count);
+ 	}
+ 	
+ 	return retval;
+@@ -7665,7 +7665,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
+ 	unsigned short new_crctype;
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	switch (encoding)
+@@ -7760,7 +7760,7 @@ static int hdlcdev_open(struct net_device *dev)
+ 
+ 	/* arbitrate between network and tty opens */
+ 	spin_lock_irqsave(&info->netlock, flags);
+-	if (info->port.count != 0 || info->netcount != 0) {
++	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
+ 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
+ 		spin_unlock_irqrestore(&info->netlock, flags);
+ 		return -EBUSY;
+@@ -7846,7 +7846,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	if (cmd != SIOCWANDEV)
+diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
+index c359a91..959fc26 100644
+--- a/drivers/tty/synclink_gt.c
++++ b/drivers/tty/synclink_gt.c
+@@ -670,7 +670,7 @@ static int open(struct tty_struct *tty, struct file *filp)
+ 	tty->driver_data = info;
+ 	info->port.tty = tty;
+ 
+-	DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
++	DBGINFO(("%s open, old ref count = %d\n", info->device_name, atomic_read(&info->port.count)));
+ 
+ 	/* If port is closing, signal caller to try again */
+ 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+@@ -691,10 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp)
+ 		mutex_unlock(&info->port.mutex);
+ 		goto cleanup;
+ 	}
+-	info->port.count++;
++	atomic_inc(&info->port.count);
+ 	spin_unlock_irqrestore(&info->netlock, flags);
+ 
+-	if (info->port.count == 1) {
++	if (atomic_read(&info->port.count) == 1) {
+ 		/* 1st open on this device, init hardware */
+ 		retval = startup(info);
+ 		if (retval < 0) {
+@@ -715,8 +715,8 @@ cleanup:
+ 	if (retval) {
+ 		if (tty->count == 1)
+ 			info->port.tty = NULL; /* tty layer will release tty struct */
+-		if(info->port.count)
+-			info->port.count--;
++		if(atomic_read(&info->port.count))
++			atomic_dec(&info->port.count);
+ 	}
+ 
+ 	DBGINFO(("%s open rc=%d\n", info->device_name, retval));
+@@ -729,7 +729,7 @@ static void close(struct tty_struct *tty, struct file *filp)
+ 
+ 	if (sanity_check(info, tty->name, "close"))
+ 		return;
+-	DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
++	DBGINFO(("%s close entry, count=%d\n", info->device_name, atomic_read(&info->port.count)));
+ 
+ 	if (tty_port_close_start(&info->port, tty, filp) == 0)
+ 		goto cleanup;
+@@ -746,7 +746,7 @@ static void close(struct tty_struct *tty, struct file *filp)
+ 	tty_port_close_end(&info->port, tty);
+ 	info->port.tty = NULL;
+ cleanup:
+-	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
++	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, atomic_read(&info->port.count)));
+ }
+ 
+ static void hangup(struct tty_struct *tty)
+@@ -764,7 +764,7 @@ static void hangup(struct tty_struct *tty)
+ 	shutdown(info);
+ 
+ 	spin_lock_irqsave(&info->port.lock, flags);
+-	info->port.count = 0;
++	atomic_set(&info->port.count, 0);
+ 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ 	info->port.tty = NULL;
+ 	spin_unlock_irqrestore(&info->port.lock, flags);
+@@ -1449,7 +1449,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
+ 	unsigned short new_crctype;
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	DBGINFO(("%s hdlcdev_attach\n", info->device_name));
+@@ -1544,7 +1544,7 @@ static int hdlcdev_open(struct net_device *dev)
+ 
+ 	/* arbitrate between network and tty opens */
+ 	spin_lock_irqsave(&info->netlock, flags);
+-	if (info->port.count != 0 || info->netcount != 0) {
++	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
+ 		DBGINFO(("%s hdlc_open busy\n", dev->name));
+ 		spin_unlock_irqrestore(&info->netlock, flags);
+ 		return -EBUSY;
+@@ -1629,7 +1629,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 	DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	if (cmd != SIOCWANDEV)
+@@ -2413,7 +2413,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
+ 		if (port == NULL)
+ 			continue;
+ 		spin_lock(&port->lock);
+-		if ((port->port.count || port->netcount) &&
++		if ((atomic_read(&port->port.count) || port->netcount) &&
+ 		    port->pending_bh && !port->bh_running &&
+ 		    !port->bh_requested) {
+ 			DBGISR(("%s bh queued\n", port->device_name));
+@@ -3302,7 +3302,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
+ 	spin_lock_irqsave(&info->lock, flags);
+ 	if (!tty_hung_up_p(filp)) {
+ 		extra_count = true;
+-		port->count--;
++		atomic_dec(&port->count);
+ 	}
+ 	spin_unlock_irqrestore(&info->lock, flags);
+ 	port->blocked_open++;
+@@ -3339,7 +3339,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
+ 	remove_wait_queue(&port->open_wait, &wait);
+ 
+ 	if (extra_count)
+-		port->count++;
++		atomic_inc(&port->count);
+ 	port->blocked_open--;
+ 
+ 	if (!retval)
+diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
+index 144202e..4ccb07d 100644
+--- a/drivers/tty/synclinkmp.c
++++ b/drivers/tty/synclinkmp.c
+@@ -750,7 +750,7 @@ static int open(struct tty_struct *tty, struct file *filp)
+ 
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):%s open(), old ref count = %d\n",
+-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
++			 __FILE__,__LINE__,tty->driver->name, atomic_read(&info->port.count));
+ 
+ 	/* If port is closing, signal caller to try again */
+ 	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+@@ -769,10 +769,10 @@ static int open(struct tty_struct *tty, struct file *filp)
+ 		spin_unlock_irqrestore(&info->netlock, flags);
+ 		goto cleanup;
+ 	}
+-	info->port.count++;
++	atomic_inc(&info->port.count);
+ 	spin_unlock_irqrestore(&info->netlock, flags);
+ 
+-	if (info->port.count == 1) {
++	if (atomic_read(&info->port.count) == 1) {
+ 		/* 1st open on this device, init hardware */
+ 		retval = startup(info);
+ 		if (retval < 0)
+@@ -796,8 +796,8 @@ cleanup:
+ 	if (retval) {
+ 		if (tty->count == 1)
+ 			info->port.tty = NULL; /* tty layer will release tty struct */
+-		if(info->port.count)
+-			info->port.count--;
++		if(atomic_read(&info->port.count))
++			atomic_dec(&info->port.count);
+ 	}
+ 
+ 	return retval;
+@@ -815,7 +815,7 @@ static void close(struct tty_struct *tty, struct file *filp)
+ 
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):%s close() entry, count=%d\n",
+-			 __FILE__,__LINE__, info->device_name, info->port.count);
++			 __FILE__,__LINE__, info->device_name, atomic_read(&info->port.count));
+ 
+ 	if (tty_port_close_start(&info->port, tty, filp) == 0)
+ 		goto cleanup;
+@@ -834,7 +834,7 @@ static void close(struct tty_struct *tty, struct file *filp)
+ cleanup:
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
+-			tty->driver->name, info->port.count);
++			tty->driver->name, atomic_read(&info->port.count));
+ }
+ 
+ /* Called by tty_hangup() when a hangup is signaled.
+@@ -857,7 +857,7 @@ static void hangup(struct tty_struct *tty)
+ 	shutdown(info);
+ 
+ 	spin_lock_irqsave(&info->port.lock, flags);
+-	info->port.count = 0;
++	atomic_set(&info->port.count, 0);
+ 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ 	info->port.tty = NULL;
+ 	spin_unlock_irqrestore(&info->port.lock, flags);
+@@ -1565,7 +1565,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
+ 	unsigned short new_crctype;
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	switch (encoding)
+@@ -1660,7 +1660,7 @@ static int hdlcdev_open(struct net_device *dev)
+ 
+ 	/* arbitrate between network and tty opens */
+ 	spin_lock_irqsave(&info->netlock, flags);
+-	if (info->port.count != 0 || info->netcount != 0) {
++	if (atomic_read(&info->port.count) != 0 || info->netcount != 0) {
+ 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
+ 		spin_unlock_irqrestore(&info->netlock, flags);
+ 		return -EBUSY;
+@@ -1746,7 +1746,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
+ 
+ 	/* return error if TTY interface open */
+-	if (info->port.count)
++	if (atomic_read(&info->port.count))
+ 		return -EBUSY;
+ 
+ 	if (cmd != SIOCWANDEV)
+@@ -2620,7 +2620,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
+ 		 * do not request bottom half processing if the
+ 		 * device is not open in a normal mode.
+ 		 */
+-		if ( port && (port->port.count || port->netcount) &&
++		if ( port && (atomic_read(&port->port.count) || port->netcount) &&
+ 		     port->pending_bh && !port->bh_running &&
+ 		     !port->bh_requested ) {
+ 			if ( debug_level >= DEBUG_LEVEL_ISR )
+@@ -3318,12 +3318,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
+ 
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
+-			 __FILE__,__LINE__, tty->driver->name, port->count );
++			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 	spin_lock_irqsave(&info->lock, flags);
+ 	if (!tty_hung_up_p(filp)) {
+ 		extra_count = true;
+-		port->count--;
++		atomic_dec(&port->count);
+ 	}
+ 	spin_unlock_irqrestore(&info->lock, flags);
+ 	port->blocked_open++;
+@@ -3352,7 +3352,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
+ 
+ 		if (debug_level >= DEBUG_LEVEL_INFO)
+ 			printk("%s(%d):%s block_til_ready() count=%d\n",
+-				 __FILE__,__LINE__, tty->driver->name, port->count );
++				 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 		tty_unlock(tty);
+ 		schedule();
+@@ -3363,12 +3363,12 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
+ 	remove_wait_queue(&port->open_wait, &wait);
+ 
+ 	if (extra_count)
+-		port->count++;
++		atomic_inc(&port->count);
+ 	port->blocked_open--;
+ 
+ 	if (debug_level >= DEBUG_LEVEL_INFO)
+ 		printk("%s(%d):%s block_til_ready() after, count=%d\n",
+-			 __FILE__,__LINE__, tty->driver->name, port->count );
++			 __FILE__,__LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 	if (!retval)
+ 		port->flags |= ASYNC_NORMAL_ACTIVE;
+diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
+index ce396ec..04a37be 100644
+--- a/drivers/tty/sysrq.c
++++ b/drivers/tty/sysrq.c
+@@ -1075,7 +1075,7 @@ EXPORT_SYMBOL(unregister_sysrq_key);
+ static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
+ 				   size_t count, loff_t *ppos)
+ {
+-	if (count) {
++	if (count && capable(CAP_SYS_ADMIN)) {
+ 		char c;
+ 
+ 		if (get_user(c, buf))
+diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
+index 39988fa..f36ed8a 100644
+--- a/drivers/tty/tty_io.c
++++ b/drivers/tty/tty_io.c
+@@ -3480,7 +3480,7 @@ EXPORT_SYMBOL_GPL(get_current_tty);
+ 
+ void tty_default_fops(struct file_operations *fops)
+ {
+-	*fops = tty_fops;
++	memcpy((void *)fops, &tty_fops, sizeof(tty_fops));
+ }
+ 
+ /*
+diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
+index 2d822aa..a566234 100644
+--- a/drivers/tty/tty_ldisc.c
++++ b/drivers/tty/tty_ldisc.c
+@@ -71,7 +71,7 @@ int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
+ 	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
+ 	tty_ldiscs[disc] = new_ldisc;
+ 	new_ldisc->num = disc;
+-	new_ldisc->refcount = 0;
++	atomic_set(&new_ldisc->refcount, 0);
+ 	raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
+ 
+ 	return ret;
+@@ -99,7 +99,7 @@ int tty_unregister_ldisc(int disc)
+ 		return -EINVAL;
+ 
+ 	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
+-	if (tty_ldiscs[disc]->refcount)
++	if (atomic_read(&tty_ldiscs[disc]->refcount))
+ 		ret = -EBUSY;
+ 	else
+ 		tty_ldiscs[disc] = NULL;
+@@ -120,7 +120,7 @@ static struct tty_ldisc_ops *get_ldops(int disc)
+ 	if (ldops) {
+ 		ret = ERR_PTR(-EAGAIN);
+ 		if (try_module_get(ldops->owner)) {
+-			ldops->refcount++;
++			atomic_inc(&ldops->refcount);
+ 			ret = ldops;
+ 		}
+ 	}
+@@ -133,7 +133,7 @@ static void put_ldops(struct tty_ldisc_ops *ldops)
+ 	unsigned long flags;
+ 
+ 	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
+-	ldops->refcount--;
++	atomic_dec(&ldops->refcount);
+ 	module_put(ldops->owner);
+ 	raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
+ }
+diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
+index 3f746c8..2f2fcaa 100644
+--- a/drivers/tty/tty_port.c
++++ b/drivers/tty/tty_port.c
+@@ -235,7 +235,7 @@ void tty_port_hangup(struct tty_port *port)
+ 	unsigned long flags;
+ 
+ 	spin_lock_irqsave(&port->lock, flags);
+-	port->count = 0;
++	atomic_set(&port->count, 0);
+ 	port->flags &= ~ASYNC_NORMAL_ACTIVE;
+ 	tty = port->tty;
+ 	if (tty)
+@@ -393,7 +393,7 @@ int tty_port_block_til_ready(struct tty_port *port,
+ 	/* The port lock protects the port counts */
+ 	spin_lock_irqsave(&port->lock, flags);
+ 	if (!tty_hung_up_p(filp))
+-		port->count--;
++		atomic_dec(&port->count);
+ 	port->blocked_open++;
+ 	spin_unlock_irqrestore(&port->lock, flags);
+ 
+@@ -435,7 +435,7 @@ int tty_port_block_til_ready(struct tty_port *port,
+ 	   we must not mess that up further */
+ 	spin_lock_irqsave(&port->lock, flags);
+ 	if (!tty_hung_up_p(filp))
+-		port->count++;
++		atomic_inc(&port->count);
+ 	port->blocked_open--;
+ 	if (retval == 0)
+ 		port->flags |= ASYNC_NORMAL_ACTIVE;
+@@ -469,19 +469,19 @@ int tty_port_close_start(struct tty_port *port,
+ 		return 0;
+ 	}
+ 
+-	if (tty->count == 1 && port->count != 1) {
++	if (tty->count == 1 && atomic_read(&port->count) != 1) {
+ 		printk(KERN_WARNING
+ 		    "tty_port_close_start: tty->count = 1 port count = %d.\n",
+-								port->count);
+-		port->count = 1;
++								atomic_read(&port->count));
++		atomic_set(&port->count, 1);
+ 	}
+-	if (--port->count < 0) {
++	if (atomic_dec_return(&port->count) < 0) {
+ 		printk(KERN_WARNING "tty_port_close_start: count = %d\n",
+-								port->count);
+-		port->count = 0;
++								atomic_read(&port->count));
++		atomic_set(&port->count, 0);
+ 	}
+ 
+-	if (port->count) {
++	if (atomic_read(&port->count)) {
+ 		spin_unlock_irqrestore(&port->lock, flags);
+ 		return 0;
+ 	}
+@@ -563,7 +563,7 @@ int tty_port_open(struct tty_port *port, struct tty_struct *tty,
+ {
+ 	spin_lock_irq(&port->lock);
+ 	if (!tty_hung_up_p(filp))
+-		++port->count;
++		atomic_inc(&port->count);
+ 	spin_unlock_irq(&port->lock);
+ 	tty_port_tty_set(port, tty);
+ 
+diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
+index d0e3a44..5f8b754 100644
+--- a/drivers/tty/vt/keyboard.c
++++ b/drivers/tty/vt/keyboard.c
+@@ -641,6 +641,16 @@ static void k_spec(struct vc_data *vc, unsigned char value, char up_flag)
+ 	     kbd->kbdmode == VC_OFF) &&
+ 	     value != KVAL(K_SAK))
+ 		return;		/* SAK is allowed even in raw mode */
++
++#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
++	{
++		void *func = fn_handler[value];
++		if (func == fn_show_state || func == fn_show_ptregs ||
++		    func == fn_show_mem)
++			return;
++	}
++#endif
++
+ 	fn_handler[value](vc);
+ }
+ 
+@@ -1776,9 +1786,6 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
+ 	if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry)))
+ 		return -EFAULT;
+ 
+-	if (!capable(CAP_SYS_TTY_CONFIG))
+-		perm = 0;
+-
+ 	switch (cmd) {
+ 	case KDGKBENT:
+ 		/* Ensure another thread doesn't free it under us */
+@@ -1793,6 +1800,9 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm,
+ 		spin_unlock_irqrestore(&kbd_event_lock, flags);
+ 		return put_user(val, &user_kbe->kb_value);
+ 	case KDSKBENT:
++		if (!capable(CAP_SYS_TTY_CONFIG))
++			perm = 0;
++
+ 		if (!perm)
+ 			return -EPERM;
+ 		if (!i && v == K_NOSUCHMAP) {
+@@ -1883,9 +1893,6 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
+ 	int i, j, k;
+ 	int ret;
+ 
+-	if (!capable(CAP_SYS_TTY_CONFIG))
+-		perm = 0;
+-
+ 	kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
+ 	if (!kbs) {
+ 		ret = -ENOMEM;
+@@ -1919,6 +1926,9 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm)
+ 		kfree(kbs);
+ 		return ((p && *p) ? -EOVERFLOW : 0);
+ 	case KDSKBSENT:
++		if (!capable(CAP_SYS_TTY_CONFIG))
++			perm = 0;
++
+ 		if (!perm) {
+ 			ret = -EPERM;
+ 			goto reterr;
+diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
+index a673e5b..36e5d32 100644
+--- a/drivers/uio/uio.c
++++ b/drivers/uio/uio.c
+@@ -25,6 +25,7 @@
+ #include <linux/kobject.h>
+ #include <linux/cdev.h>
+ #include <linux/uio_driver.h>
++#include <asm/local.h>
+ 
+ #define UIO_MAX_DEVICES		(1U << MINORBITS)
+ 
+@@ -32,7 +33,7 @@ struct uio_device {
+ 	struct module		*owner;
+ 	struct device		*dev;
+ 	int			minor;
+-	atomic_t		event;
++	atomic_unchecked_t	event;
+ 	struct fasync_struct	*async_queue;
+ 	wait_queue_head_t	wait;
+ 	struct uio_info		*info;
+@@ -243,7 +244,7 @@ static ssize_t event_show(struct device *dev,
+ 			  struct device_attribute *attr, char *buf)
+ {
+ 	struct uio_device *idev = dev_get_drvdata(dev);
+-	return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event));
++	return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event));
+ }
+ static DEVICE_ATTR_RO(event);
+ 
+@@ -405,7 +406,7 @@ void uio_event_notify(struct uio_info *info)
+ {
+ 	struct uio_device *idev = info->uio_dev;
+ 
+-	atomic_inc(&idev->event);
++	atomic_inc_unchecked(&idev->event);
+ 	wake_up_interruptible(&idev->wait);
+ 	kill_fasync(&idev->async_queue, SIGIO, POLL_IN);
+ }
+@@ -458,7 +459,7 @@ static int uio_open(struct inode *inode, struct file *filep)
+ 	}
+ 
+ 	listener->dev = idev;
+-	listener->event_count = atomic_read(&idev->event);
++	listener->event_count = atomic_read_unchecked(&idev->event);
+ 	filep->private_data = listener;
+ 
+ 	if (idev->info->open) {
+@@ -509,7 +510,7 @@ static unsigned int uio_poll(struct file *filep, poll_table *wait)
+ 		return -EIO;
+ 
+ 	poll_wait(filep, &idev->wait, wait);
+-	if (listener->event_count != atomic_read(&idev->event))
++	if (listener->event_count != atomic_read_unchecked(&idev->event))
+ 		return POLLIN | POLLRDNORM;
+ 	return 0;
+ }
+@@ -534,7 +535,7 @@ static ssize_t uio_read(struct file *filep, char __user *buf,
+ 	do {
+ 		set_current_state(TASK_INTERRUPTIBLE);
+ 
+-		event_count = atomic_read(&idev->event);
++		event_count = atomic_read_unchecked(&idev->event);
+ 		if (event_count != listener->event_count) {
+ 			if (copy_to_user(buf, &event_count, count))
+ 				retval = -EFAULT;
+@@ -591,9 +592,13 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
+ static int uio_find_mem_index(struct vm_area_struct *vma)
+ {
+ 	struct uio_device *idev = vma->vm_private_data;
++	unsigned long size;
+ 
+ 	if (vma->vm_pgoff < MAX_UIO_MAPS) {
+-		if (idev->info->mem[vma->vm_pgoff].size == 0)
++		size = idev->info->mem[vma->vm_pgoff].size;
++		if (size == 0)
++			return -1;
++		if (vma->vm_end - vma->vm_start > size)
+ 			return -1;
+ 		return (int)vma->vm_pgoff;
+ 	}
+@@ -825,7 +830,7 @@ int __uio_register_device(struct module *owner,
+ 	idev->owner = owner;
+ 	idev->info = info;
+ 	init_waitqueue_head(&idev->wait);
+-	atomic_set(&idev->event, 0);
++	atomic_set_unchecked(&idev->event, 0);
+ 
+ 	ret = uio_get_minor(idev);
+ 	if (ret)
+diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
+index 813d4d3..a71934f 100644
+--- a/drivers/usb/atm/cxacru.c
++++ b/drivers/usb/atm/cxacru.c
+@@ -472,7 +472,7 @@ static ssize_t cxacru_sysfs_store_adsl_config(struct device *dev,
+ 		ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp);
+ 		if (ret < 2)
+ 			return -EINVAL;
+-		if (index < 0 || index > 0x7f)
++		if (index > 0x7f)
+ 			return -EINVAL;
+ 		pos += tmp;
+ 
+diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
+index dada014..1d0d517 100644
+--- a/drivers/usb/atm/usbatm.c
++++ b/drivers/usb/atm/usbatm.c
+@@ -331,7 +331,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
+ 		if (printk_ratelimit())
+ 			atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n",
+ 				__func__, vpi, vci);
+-		atomic_inc(&vcc->stats->rx_err);
++		atomic_inc_unchecked(&vcc->stats->rx_err);
+ 		return;
+ 	}
+ 
+@@ -358,7 +358,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
+ 		if (length > ATM_MAX_AAL5_PDU) {
+ 			atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n",
+ 				  __func__, length, vcc);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			goto out;
+ 		}
+ 
+@@ -367,14 +367,14 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
+ 		if (sarb->len < pdu_length) {
+ 			atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n",
+ 				  __func__, pdu_length, sarb->len, vcc);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			goto out;
+ 		}
+ 
+ 		if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) {
+ 			atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n",
+ 				  __func__, vcc);
+-			atomic_inc(&vcc->stats->rx_err);
++			atomic_inc_unchecked(&vcc->stats->rx_err);
+ 			goto out;
+ 		}
+ 
+@@ -386,7 +386,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
+ 			if (printk_ratelimit())
+ 				atm_err(instance, "%s: no memory for skb (length: %u)!\n",
+ 					__func__, length);
+-			atomic_inc(&vcc->stats->rx_drop);
++			atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 			goto out;
+ 		}
+ 
+@@ -414,7 +414,7 @@ static void usbatm_extract_one_cell(struct usbatm_data *instance, unsigned char
+ 
+ 		vcc->push(vcc, skb);
+ 
+-		atomic_inc(&vcc->stats->rx);
++		atomic_inc_unchecked(&vcc->stats->rx);
+ 	out:
+ 		skb_trim(sarb, 0);
+ 	}
+@@ -612,7 +612,7 @@ static void usbatm_tx_process(unsigned long data)
+ 			struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc;
+ 
+ 			usbatm_pop(vcc, skb);
+-			atomic_inc(&vcc->stats->tx);
++			atomic_inc_unchecked(&vcc->stats->tx);
+ 
+ 			skb = skb_dequeue(&instance->sndqueue);
+ 		}
+@@ -756,11 +756,11 @@ static int usbatm_atm_proc_read(struct atm_dev *atm_dev, loff_t *pos, char *page
+ 	if (!left--)
+ 		return sprintf(page,
+ 			       "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n",
+-			       atomic_read(&atm_dev->stats.aal5.tx),
+-			       atomic_read(&atm_dev->stats.aal5.tx_err),
+-			       atomic_read(&atm_dev->stats.aal5.rx),
+-			       atomic_read(&atm_dev->stats.aal5.rx_err),
+-			       atomic_read(&atm_dev->stats.aal5.rx_drop));
++			       atomic_read_unchecked(&atm_dev->stats.aal5.tx),
++			       atomic_read_unchecked(&atm_dev->stats.aal5.tx_err),
++			       atomic_read_unchecked(&atm_dev->stats.aal5.rx),
++			       atomic_read_unchecked(&atm_dev->stats.aal5.rx_err),
++			       atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop));
+ 
+ 	if (!left--) {
+ 		if (instance->disconnected)
+diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
+index 2a3bbdf..91d72cf 100644
+--- a/drivers/usb/core/devices.c
++++ b/drivers/usb/core/devices.c
+@@ -126,7 +126,7 @@ static const char format_endpt[] =
+  * time it gets called.
+  */
+ static struct device_connect_event {
+-	atomic_t count;
++	atomic_unchecked_t count;
+ 	wait_queue_head_t wait;
+ } device_event = {
+ 	.count = ATOMIC_INIT(1),
+@@ -164,7 +164,7 @@ static const struct class_info clas_info[] = {
+ 
+ void usbfs_conn_disc_event(void)
+ {
+-	atomic_add(2, &device_event.count);
++	atomic_add_unchecked(2, &device_event.count);
+ 	wake_up(&device_event.wait);
+ }
+ 
+@@ -652,7 +652,7 @@ static unsigned int usb_device_poll(struct file *file,
+ 
+ 	poll_wait(file, &device_event.wait, wait);
+ 
+-	event_count = atomic_read(&device_event.count);
++	event_count = atomic_read_unchecked(&device_event.count);
+ 	if (file->f_version != event_count) {
+ 		file->f_version = event_count;
+ 		return POLLIN | POLLRDNORM;
+diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
+index 45b7b96..e016243 100644
+--- a/drivers/usb/core/devio.c
++++ b/drivers/usb/core/devio.c
+@@ -187,7 +187,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
+ 	struct dev_state *ps = file->private_data;
+ 	struct usb_device *dev = ps->dev;
+ 	ssize_t ret = 0;
+-	unsigned len;
++	size_t len;
+ 	loff_t pos;
+ 	int i;
+ 
+@@ -229,22 +229,22 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes,
+ 	for (i = 0; nbytes && i < dev->descriptor.bNumConfigurations; i++) {
+ 		struct usb_config_descriptor *config =
+ 			(struct usb_config_descriptor *)dev->rawdescriptors[i];
+-		unsigned int length = le16_to_cpu(config->wTotalLength);
++		size_t length = le16_to_cpu(config->wTotalLength);
+ 
+ 		if (*ppos < pos + length) {
+ 
+ 			/* The descriptor may claim to be longer than it
+ 			 * really is.  Here is the actual allocated length. */
+-			unsigned alloclen =
++			size_t alloclen =
+ 				le16_to_cpu(dev->config[i].desc.wTotalLength);
+ 
+-			len = length - (*ppos - pos);
++			len = length + pos - *ppos;
+ 			if (len > nbytes)
+ 				len = nbytes;
+ 
+ 			/* Simply don't write (skip over) unallocated parts */
+ 			if (alloclen > (*ppos - pos)) {
+-				alloclen -= (*ppos - pos);
++				alloclen = alloclen + pos - *ppos;
+ 				if (copy_to_user(buf,
+ 				    dev->rawdescriptors[i] + (*ppos - pos),
+ 				    min(len, alloclen))) {
+diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
+index ee6c556..001eb9e 100644
+--- a/drivers/usb/core/hcd.c
++++ b/drivers/usb/core/hcd.c
+@@ -1550,7 +1550,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
+ 	 */
+ 	usb_get_urb(urb);
+ 	atomic_inc(&urb->use_count);
+-	atomic_inc(&urb->dev->urbnum);
++	atomic_inc_unchecked(&urb->dev->urbnum);
+ 	usbmon_urb_submit(&hcd->self, urb);
+ 
+ 	/* NOTE requirements on root-hub callers (usbfs and the hub
+@@ -1577,7 +1577,7 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
+ 		urb->hcpriv = NULL;
+ 		INIT_LIST_HEAD(&urb->urb_list);
+ 		atomic_dec(&urb->use_count);
+-		atomic_dec(&urb->dev->urbnum);
++		atomic_dec_unchecked(&urb->dev->urbnum);
+ 		if (atomic_read(&urb->reject))
+ 			wake_up(&usb_kill_urb_queue);
+ 		usb_put_urb(urb);
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index 1847a7d..7fa9e59 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -27,6 +27,7 @@
+ #include <linux/freezer.h>
+ #include <linux/random.h>
+ #include <linux/pm_qos.h>
++#include <linux/grsecurity.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/byteorder.h>
+@@ -4554,6 +4555,10 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
+ 			goto done;
+ 		return;
+ 	}
++
++	if (gr_handle_new_usb())
++		goto done;
++
+ 	if (hub_is_superspeed(hub->hdev))
+ 		unit_load = 150;
+ 	else
+diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
+index f829a1a..e6c334a 100644
+--- a/drivers/usb/core/message.c
++++ b/drivers/usb/core/message.c
+@@ -128,7 +128,7 @@ static int usb_internal_control_msg(struct usb_device *usb_dev,
+  * Return: If successful, the number of bytes transferred. Otherwise, a negative
+  * error number.
+  */
+-int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
++int __intentional_overflow(-1) usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
+ 		    __u8 requesttype, __u16 value, __u16 index, void *data,
+ 		    __u16 size, int timeout)
+ {
+@@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(usb_control_msg);
+  * If successful, 0. Otherwise a negative error number. The number of actual
+  * bytes transferred will be stored in the @actual_length paramater.
+  */
+-int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
++int __intentional_overflow(-1) usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
+ 		      void *data, int len, int *actual_length, int timeout)
+ {
+ 	return usb_bulk_msg(usb_dev, pipe, data, len, actual_length, timeout);
+@@ -220,7 +220,7 @@ EXPORT_SYMBOL_GPL(usb_interrupt_msg);
+  * bytes transferred will be stored in the @actual_length parameter.
+  *
+  */
+-int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
++int __intentional_overflow(-1) usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
+ 		 void *data, int len, int *actual_length, int timeout)
+ {
+ 	struct urb *urb;
+diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
+index 1236c60..d47a51c 100644
+--- a/drivers/usb/core/sysfs.c
++++ b/drivers/usb/core/sysfs.c
+@@ -244,7 +244,7 @@ static ssize_t urbnum_show(struct device *dev, struct device_attribute *attr,
+ 	struct usb_device *udev;
+ 
+ 	udev = to_usb_device(dev);
+-	return sprintf(buf, "%d\n", atomic_read(&udev->urbnum));
++	return sprintf(buf, "%d\n", atomic_read_unchecked(&udev->urbnum));
+ }
+ static DEVICE_ATTR_RO(urbnum);
+ 
+diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
+index a922730..4ae8e1c 100644
+--- a/drivers/usb/core/usb.c
++++ b/drivers/usb/core/usb.c
+@@ -433,7 +433,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
+ 	set_dev_node(&dev->dev, dev_to_node(bus->controller));
+ 	dev->state = USB_STATE_ATTACHED;
+ 	dev->lpm_disable_count = 1;
+-	atomic_set(&dev->urbnum, 0);
++	atomic_set_unchecked(&dev->urbnum, 0);
+ 
+ 	INIT_LIST_HEAD(&dev->ep0.urb_list);
+ 	dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE;
+diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
+index 8cfc319..4868255 100644
+--- a/drivers/usb/early/ehci-dbgp.c
++++ b/drivers/usb/early/ehci-dbgp.c
+@@ -98,7 +98,8 @@ static inline u32 dbgp_len_update(u32 x, u32 len)
+ 
+ #ifdef CONFIG_KGDB
+ static struct kgdb_io kgdbdbgp_io_ops;
+-#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops)
++static struct kgdb_io kgdbdbgp_io_ops_console;
++#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console)
+ #else
+ #define dbgp_kgdb_mode (0)
+ #endif
+@@ -1043,6 +1044,13 @@ static struct kgdb_io kgdbdbgp_io_ops = {
+ 	.write_char = kgdbdbgp_write_char,
+ };
+ 
++static struct kgdb_io kgdbdbgp_io_ops_console = {
++	.name = "kgdbdbgp",
++	.read_char = kgdbdbgp_read_char,
++	.write_char = kgdbdbgp_write_char,
++	.is_console = 1
++};
++
+ static int kgdbdbgp_wait_time;
+ 
+ static int __init kgdbdbgp_parse_config(char *str)
+@@ -1058,8 +1066,10 @@ static int __init kgdbdbgp_parse_config(char *str)
+ 		ptr++;
+ 		kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10);
+ 	}
+-	kgdb_register_io_module(&kgdbdbgp_io_ops);
+-	kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1;
++	if (early_dbgp_console.index != -1)
++		kgdb_register_io_module(&kgdbdbgp_io_ops_console);
++	else
++		kgdb_register_io_module(&kgdbdbgp_io_ops);
+ 
+ 	return 0;
+ }
+diff --git a/drivers/usb/gadget/f_uac1.c b/drivers/usb/gadget/f_uac1.c
+index 2b4c82d..06a8ee6 100644
+--- a/drivers/usb/gadget/f_uac1.c
++++ b/drivers/usb/gadget/f_uac1.c
+@@ -13,6 +13,7 @@
+ #include <linux/kernel.h>
+ #include <linux/device.h>
+ #include <linux/atomic.h>
++#include <linux/module.h>
+ 
+ #include "u_uac1.h"
+ 
+diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
+index ad0aca8..8ff84865 100644
+--- a/drivers/usb/gadget/u_serial.c
++++ b/drivers/usb/gadget/u_serial.c
+@@ -733,9 +733,9 @@ static int gs_open(struct tty_struct *tty, struct file *file)
+ 			spin_lock_irq(&port->port_lock);
+ 
+ 			/* already open?  Great. */
+-			if (port->port.count) {
++			if (atomic_read(&port->port.count)) {
+ 				status = 0;
+-				port->port.count++;
++				atomic_inc(&port->port.count);
+ 
+ 			/* currently opening/closing? wait ... */
+ 			} else if (port->openclose) {
+@@ -794,7 +794,7 @@ static int gs_open(struct tty_struct *tty, struct file *file)
+ 	tty->driver_data = port;
+ 	port->port.tty = tty;
+ 
+-	port->port.count = 1;
++	atomic_set(&port->port.count, 1);
+ 	port->openclose = false;
+ 
+ 	/* if connected, start the I/O stream */
+@@ -836,11 +836,11 @@ static void gs_close(struct tty_struct *tty, struct file *file)
+ 
+ 	spin_lock_irq(&port->port_lock);
+ 
+-	if (port->port.count != 1) {
+-		if (port->port.count == 0)
++	if (atomic_read(&port->port.count) != 1) {
++		if (atomic_read(&port->port.count) == 0)
+ 			WARN_ON(1);
+ 		else
+-			--port->port.count;
++			atomic_dec(&port->port.count);
+ 		goto exit;
+ 	}
+ 
+@@ -850,7 +850,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
+ 	 * and sleep if necessary
+ 	 */
+ 	port->openclose = true;
+-	port->port.count = 0;
++	atomic_set(&port->port.count, 0);
+ 
+ 	gser = port->port_usb;
+ 	if (gser && gser->disconnect)
+@@ -1066,7 +1066,7 @@ static int gs_closed(struct gs_port *port)
+ 	int cond;
+ 
+ 	spin_lock_irq(&port->port_lock);
+-	cond = (port->port.count == 0) && !port->openclose;
++	cond = (atomic_read(&port->port.count) == 0) && !port->openclose;
+ 	spin_unlock_irq(&port->port_lock);
+ 	return cond;
+ }
+@@ -1209,7 +1209,7 @@ int gserial_connect(struct gserial *gser, u8 port_num)
+ 	/* if it's already open, start I/O ... and notify the serial
+ 	 * protocol about open/close status (connect/disconnect).
+ 	 */
+-	if (port->port.count) {
++	if (atomic_read(&port->port.count)) {
+ 		pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
+ 		gs_start_io(port);
+ 		if (gser->connect)
+@@ -1256,7 +1256,7 @@ void gserial_disconnect(struct gserial *gser)
+ 
+ 	port->port_usb = NULL;
+ 	gser->ioport = NULL;
+-	if (port->port.count > 0 || port->openclose) {
++	if (atomic_read(&port->port.count) > 0 || port->openclose) {
+ 		wake_up_interruptible(&port->drain_wait);
+ 		if (port->port.tty)
+ 			tty_hangup(port->port.tty);
+@@ -1272,7 +1272,7 @@ void gserial_disconnect(struct gserial *gser)
+ 
+ 	/* finally, free any unused/unusable I/O buffers */
+ 	spin_lock_irqsave(&port->port_lock, flags);
+-	if (port->port.count == 0 && !port->openclose)
++	if (atomic_read(&port->port.count) == 0 && !port->openclose)
+ 		gs_buf_free(&port->port_write_buf);
+ 	gs_free_requests(gser->out, &port->read_pool, NULL);
+ 	gs_free_requests(gser->out, &port->read_queue, NULL);
+diff --git a/drivers/usb/gadget/u_uac1.c b/drivers/usb/gadget/u_uac1.c
+index 7a55fea..cc0ed4f 100644
+--- a/drivers/usb/gadget/u_uac1.c
++++ b/drivers/usb/gadget/u_uac1.c
+@@ -16,6 +16,7 @@
+ #include <linux/ctype.h>
+ #include <linux/random.h>
+ #include <linux/syscalls.h>
++#include <linux/module.h>
+ 
+ #include "u_uac1.h"
+ 
+diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
+index 323c5fa..d20a7d6 100644
+--- a/drivers/usb/host/ehci-hub.c
++++ b/drivers/usb/host/ehci-hub.c
+@@ -783,7 +783,7 @@ static struct urb *request_single_step_set_feature_urb(
+ 	urb->transfer_flags = URB_DIR_IN;
+ 	usb_get_urb(urb);
+ 	atomic_inc(&urb->use_count);
+-	atomic_inc(&urb->dev->urbnum);
++	atomic_inc_unchecked(&urb->dev->urbnum);
+ 	urb->setup_dma = dma_map_single(
+ 			hcd->self.controller,
+ 			urb->setup_packet,
+@@ -850,7 +850,7 @@ static int ehset_single_step_set_feature(struct usb_hcd *hcd, int port)
+ 	urb->status = -EINPROGRESS;
+ 	usb_get_urb(urb);
+ 	atomic_inc(&urb->use_count);
+-	atomic_inc(&urb->dev->urbnum);
++	atomic_inc_unchecked(&urb->dev->urbnum);
+ 	retval = submit_single_step_set_feature(hcd, urb, 0);
+ 	if (!retval && !wait_for_completion_timeout(&done,
+ 						msecs_to_jiffies(2000))) {
+diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
+index e076699..6b3b875 100644
+--- a/drivers/usb/host/hwa-hc.c
++++ b/drivers/usb/host/hwa-hc.c
+@@ -301,7 +301,10 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
+ 	struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
+ 	struct wahc *wa = &hwahc->wa;
+ 	struct device *dev = &wa->usb_iface->dev;
+-	u8 mas_le[UWB_NUM_MAS/8];
++	u8 *mas_le = kmalloc(UWB_NUM_MAS/8, GFP_KERNEL);
++
++	if (mas_le == NULL)
++		return -ENOMEM;
+ 
+ 	/* Set the stream index */
+ 	result = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),
+@@ -320,10 +323,12 @@ static int __hwahc_op_bwa_set(struct wusbhc *wusbhc, s8 stream_index,
+ 			WUSB_REQ_SET_WUSB_MAS,
+ 			USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 			0, wa->usb_iface->cur_altsetting->desc.bInterfaceNumber,
+-			mas_le, 32, USB_CTRL_SET_TIMEOUT);
++			mas_le, UWB_NUM_MAS/8, USB_CTRL_SET_TIMEOUT);
+ 	if (result < 0)
+ 		dev_err(dev, "Cannot set WUSB MAS allocation: %d\n", result);
+ out:
++	kfree(mas_le);
++
+ 	return result;
+ }
+ 
+diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
+index ba6a5d6..f88f7f3 100644
+--- a/drivers/usb/misc/appledisplay.c
++++ b/drivers/usb/misc/appledisplay.c
+@@ -83,7 +83,7 @@ struct appledisplay {
+ 	spinlock_t lock;
+ };
+ 
+-static atomic_t count_displays = ATOMIC_INIT(0);
++static atomic_unchecked_t count_displays = ATOMIC_INIT(0);
+ static struct workqueue_struct *wq;
+ 
+ static void appledisplay_complete(struct urb *urb)
+@@ -281,7 +281,7 @@ static int appledisplay_probe(struct usb_interface *iface,
+ 
+ 	/* Register backlight device */
+ 	snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
+-		atomic_inc_return(&count_displays) - 1);
++		atomic_inc_return_unchecked(&count_displays) - 1);
+ 	memset(&props, 0, sizeof(struct backlight_properties));
+ 	props.type = BACKLIGHT_RAW;
+ 	props.max_brightness = 0xff;
+diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
+index 29fa1c3..a57b08e 100644
+--- a/drivers/usb/serial/console.c
++++ b/drivers/usb/serial/console.c
+@@ -125,7 +125,7 @@ static int usb_console_setup(struct console *co, char *options)
+ 
+ 	info->port = port;
+ 
+-	++port->port.count;
++	atomic_inc(&port->port.count);
+ 	if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags)) {
+ 		if (serial->type->set_termios) {
+ 			/*
+@@ -173,7 +173,7 @@ static int usb_console_setup(struct console *co, char *options)
+ 	}
+ 	/* Now that any required fake tty operations are completed restore
+ 	 * the tty port count */
+-	--port->port.count;
++	atomic_dec(&port->port.count);
+ 	/* The console is special in terms of closing the device so
+ 	 * indicate this port is now acting as a system console. */
+ 	port->port.console = 1;
+@@ -186,7 +186,7 @@ static int usb_console_setup(struct console *co, char *options)
+  put_tty:
+ 	tty_kref_put(tty);
+  reset_open_count:
+-	port->port.count = 0;
++	atomic_set(&port->port.count, 0);
+ 	usb_autopm_put_interface(serial->interface);
+  error_get_interface:
+ 	usb_serial_put(serial);
+@@ -197,7 +197,7 @@ static int usb_console_setup(struct console *co, char *options)
+ static void usb_console_write(struct console *co,
+ 					const char *buf, unsigned count)
+ {
+-	static struct usbcons_info *info = &usbcons_info;
++	struct usbcons_info *info = &usbcons_info;
+ 	struct usb_serial_port *port = info->port;
+ 	struct usb_serial *serial;
+ 	int retval = -ENODEV;
+diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
+index 75f70f0..d467e1a 100644
+--- a/drivers/usb/storage/usb.h
++++ b/drivers/usb/storage/usb.h
+@@ -63,7 +63,7 @@ struct us_unusual_dev {
+ 	__u8  useProtocol;
+ 	__u8  useTransport;
+ 	int (*initFunction)(struct us_data *);
+-};
++} __do_const;
+ 
+ 
+ /* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */
+diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
+index a2ef84b..aa7c2b8 100644
+--- a/drivers/usb/wusbcore/wa-hc.h
++++ b/drivers/usb/wusbcore/wa-hc.h
+@@ -225,7 +225,7 @@ struct wahc {
+ 	spinlock_t xfer_list_lock;
+ 	struct work_struct xfer_enqueue_work;
+ 	struct work_struct xfer_error_work;
+-	atomic_t xfer_id_count;
++	atomic_unchecked_t xfer_id_count;
+ 
+ 	kernel_ulong_t	quirks;
+ };
+@@ -287,7 +287,7 @@ static inline void wa_init(struct wahc *wa)
+ 	INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run);
+ 	INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run);
+ 	wa->dto_in_use = 0;
+-	atomic_set(&wa->xfer_id_count, 1);
++	atomic_set_unchecked(&wa->xfer_id_count, 1);
+ }
+ 
+ /**
+diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
+index 3cd96e9..bd7c58d 100644
+--- a/drivers/usb/wusbcore/wa-xfer.c
++++ b/drivers/usb/wusbcore/wa-xfer.c
+@@ -312,7 +312,7 @@ static void wa_xfer_completion(struct wa_xfer *xfer)
+  */
+ static void wa_xfer_id_init(struct wa_xfer *xfer)
+ {
+-	xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
++	xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count);
+ }
+ 
+ /* Return the xfer's ID. */
+diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
+index 21271d8..45b55a0 100644
+--- a/drivers/vfio/vfio.c
++++ b/drivers/vfio/vfio.c
+@@ -487,7 +487,7 @@ static int vfio_group_nb_add_dev(struct vfio_group *group, struct device *dev)
+ 		return 0;
+ 
+ 	/* TODO Prevent device auto probing */
+-	WARN("Device %s added to live group %d!\n", dev_name(dev),
++	WARN(1, "Device %s added to live group %d!\n", dev_name(dev),
+ 	     iommu_group_id(group->iommu_group));
+ 
+ 	return 0;
+diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
+index 5174eba..451e6bc 100644
+--- a/drivers/vhost/vringh.c
++++ b/drivers/vhost/vringh.c
+@@ -530,17 +530,17 @@ static inline void __vringh_notify_disable(struct vringh *vrh,
+ /* Userspace access helpers: in this case, addresses are really userspace. */
+ static inline int getu16_user(u16 *val, const u16 *p)
+ {
+-	return get_user(*val, (__force u16 __user *)p);
++	return get_user(*val, (u16 __force_user *)p);
+ }
+ 
+ static inline int putu16_user(u16 *p, u16 val)
+ {
+-	return put_user(val, (__force u16 __user *)p);
++	return put_user(val, (u16 __force_user *)p);
+ }
+ 
+ static inline int copydesc_user(void *dst, const void *src, size_t len)
+ {
+-	return copy_from_user(dst, (__force void __user *)src, len) ?
++	return copy_from_user(dst, (void __force_user *)src, len) ?
+ 		-EFAULT : 0;
+ }
+ 
+@@ -548,19 +548,19 @@ static inline int putused_user(struct vring_used_elem *dst,
+ 			       const struct vring_used_elem *src,
+ 			       unsigned int num)
+ {
+-	return copy_to_user((__force void __user *)dst, src,
++	return copy_to_user((void __force_user *)dst, src,
+ 			    sizeof(*dst) * num) ? -EFAULT : 0;
+ }
+ 
+ static inline int xfer_from_user(void *src, void *dst, size_t len)
+ {
+-	return copy_from_user(dst, (__force void __user *)src, len) ?
++	return copy_from_user(dst, (void __force_user *)src, len) ?
+ 		-EFAULT : 0;
+ }
+ 
+ static inline int xfer_to_user(void *dst, void *src, size_t len)
+ {
+-	return copy_to_user((__force void __user *)dst, src, len) ?
++	return copy_to_user((void __force_user *)dst, src, len) ?
+ 		-EFAULT : 0;
+ }
+ 
+@@ -596,9 +596,9 @@ int vringh_init_user(struct vringh *vrh, u32 features,
+ 	vrh->last_used_idx = 0;
+ 	vrh->vring.num = num;
+ 	/* vring expects kernel addresses, but only used via accessors. */
+-	vrh->vring.desc = (__force struct vring_desc *)desc;
+-	vrh->vring.avail = (__force struct vring_avail *)avail;
+-	vrh->vring.used = (__force struct vring_used *)used;
++	vrh->vring.desc = (__force_kernel struct vring_desc *)desc;
++	vrh->vring.avail = (__force_kernel struct vring_avail *)avail;
++	vrh->vring.used = (__force_kernel struct vring_used *)used;
+ 	return 0;
+ }
+ EXPORT_SYMBOL(vringh_init_user);
+@@ -800,7 +800,7 @@ static inline int getu16_kern(u16 *val, const u16 *p)
+ 
+ static inline int putu16_kern(u16 *p, u16 val)
+ {
+-	ACCESS_ONCE(*p) = val;
++	ACCESS_ONCE_RW(*p) = val;
+ 	return 0;
+ }
+ 
+diff --git a/drivers/video/arcfb.c b/drivers/video/arcfb.c
+index 1b0b233..6f34c2c 100644
+--- a/drivers/video/arcfb.c
++++ b/drivers/video/arcfb.c
+@@ -458,7 +458,7 @@ static ssize_t arcfb_write(struct fb_info *info, const char __user *buf,
+ 		return -ENOSPC;
+ 
+ 	err = 0;
+-	if ((count + p) > fbmemlength) {
++	if (count > (fbmemlength - p)) {
+ 		count = fbmemlength - p;
+ 		err = -ENOSPC;
+ 	}
+diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
+index 52108be..c7c110d 100644
+--- a/drivers/video/aty/aty128fb.c
++++ b/drivers/video/aty/aty128fb.c
+@@ -149,7 +149,7 @@ enum {
+ };
+ 
+ /* Must match above enum */
+-static char * const r128_family[] = {
++static const char * const r128_family[] = {
+ 	"AGP",
+ 	"PCI",
+ 	"PRO AGP",
+diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
+index 28fafbf..ae91651 100644
+--- a/drivers/video/aty/atyfb_base.c
++++ b/drivers/video/aty/atyfb_base.c
+@@ -1326,10 +1326,14 @@ static int atyfb_set_par(struct fb_info *info)
+ 	par->accel_flags = var->accel_flags; /* hack */
+ 
+ 	if (var->accel_flags) {
+-		info->fbops->fb_sync = atyfb_sync;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_sync = atyfb_sync;
++		pax_close_kernel();
+ 		info->flags &= ~FBINFO_HWACCEL_DISABLED;
+ 	} else {
+-		info->fbops->fb_sync = NULL;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_sync = NULL;
++		pax_close_kernel();
+ 		info->flags |= FBINFO_HWACCEL_DISABLED;
+ 	}
+ 
+diff --git a/drivers/video/aty/mach64_cursor.c b/drivers/video/aty/mach64_cursor.c
+index 0fe02e2..ab01b26 100644
+--- a/drivers/video/aty/mach64_cursor.c
++++ b/drivers/video/aty/mach64_cursor.c
+@@ -8,6 +8,7 @@
+ #include "../fb_draw.h"
+ 
+ #include <asm/io.h>
++#include <asm/pgtable.h>
+ 
+ #ifdef __sparc__
+ #include <asm/fbio.h>
+@@ -218,7 +219,9 @@ int aty_init_cursor(struct fb_info *info)
+ 	info->sprite.buf_align = 16; 	/* and 64 lines tall. */
+ 	info->sprite.flags = FB_PIXMAP_IO;
+ 
+-	info->fbops->fb_cursor = atyfb_cursor;
++	pax_open_kernel();
++	*(void **)&info->fbops->fb_cursor = atyfb_cursor;
++	pax_close_kernel();
+ 
+ 	return 0;
+ }
+diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
+index 84a110a..96312c3 100644
+--- a/drivers/video/backlight/kb3886_bl.c
++++ b/drivers/video/backlight/kb3886_bl.c
+@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
+ static unsigned long kb3886bl_flags;
+ #define KB3886BL_SUSPENDED     0x01
+ 
+-static struct dmi_system_id kb3886bl_device_table[] __initdata = {
++static const struct dmi_system_id kb3886bl_device_table[] __initconst = {
+ 	{
+ 		.ident = "Sahara Touch-iT",
+ 		.matches = {
+diff --git a/drivers/video/fb_defio.c b/drivers/video/fb_defio.c
+index 900aa4e..6d49418 100644
+--- a/drivers/video/fb_defio.c
++++ b/drivers/video/fb_defio.c
+@@ -206,7 +206,9 @@ void fb_deferred_io_init(struct fb_info *info)
+ 
+ 	BUG_ON(!fbdefio);
+ 	mutex_init(&fbdefio->lock);
+-	info->fbops->fb_mmap = fb_deferred_io_mmap;
++	pax_open_kernel();
++	*(void **)&info->fbops->fb_mmap = fb_deferred_io_mmap;
++	pax_close_kernel();
+ 	INIT_DELAYED_WORK(&info->deferred_work, fb_deferred_io_work);
+ 	INIT_LIST_HEAD(&fbdefio->pagelist);
+ 	if (fbdefio->delay == 0) /* set a default of 1 s */
+@@ -237,7 +239,7 @@ void fb_deferred_io_cleanup(struct fb_info *info)
+ 		page->mapping = NULL;
+ 	}
+ 
+-	info->fbops->fb_mmap = NULL;
++	*(void **)&info->fbops->fb_mmap = NULL;
+ 	mutex_destroy(&fbdefio->lock);
+ }
+ EXPORT_SYMBOL_GPL(fb_deferred_io_cleanup);
+diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
+index 7309ac7..be3c49c 100644
+--- a/drivers/video/fbmem.c
++++ b/drivers/video/fbmem.c
+@@ -433,7 +433,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
+ 			image->dx += image->width + 8;
+ 		}
+ 	} else if (rotate == FB_ROTATE_UD) {
+-		for (x = 0; x < num && image->dx >= 0; x++) {
++		for (x = 0; x < num && (__s32)image->dx >= 0; x++) {
+ 			info->fbops->fb_imageblit(info, image);
+ 			image->dx -= image->width + 8;
+ 		}
+@@ -445,7 +445,7 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
+ 			image->dy += image->height + 8;
+ 		}
+ 	} else if (rotate == FB_ROTATE_CCW) {
+-		for (x = 0; x < num && image->dy >= 0; x++) {
++		for (x = 0; x < num && (__s32)image->dy >= 0; x++) {
+ 			info->fbops->fb_imageblit(info, image);
+ 			image->dy -= image->height + 8;
+ 		}
+@@ -1179,7 +1179,7 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
+ 			return -EFAULT;
+ 		if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES)
+ 			return -EINVAL;
+-		if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX)
++		if (con2fb.framebuffer >= FB_MAX)
+ 			return -EINVAL;
+ 		if (!registered_fb[con2fb.framebuffer])
+ 			request_module("fb%d", con2fb.framebuffer);
+@@ -1300,7 +1300,7 @@ static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
+ 	__u32 data;
+ 	int err;
+ 
+-	err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
++	err = copy_to_user(fix32->id, &fix->id, sizeof(fix32->id));
+ 
+ 	data = (__u32) (unsigned long) fix->smem_start;
+ 	err |= put_user(data, &fix32->smem_start);
+diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
+index 130708f..cdac1a9 100644
+--- a/drivers/video/hyperv_fb.c
++++ b/drivers/video/hyperv_fb.c
+@@ -233,7 +233,7 @@ static uint screen_fb_size;
+ static inline int synthvid_send(struct hv_device *hdev,
+ 				struct synthvid_msg *msg)
+ {
+-	static atomic64_t request_id = ATOMIC64_INIT(0);
++	static atomic64_unchecked_t request_id = ATOMIC64_INIT(0);
+ 	int ret;
+ 
+ 	msg->pipe_hdr.type = PIPE_MSG_DATA;
+@@ -241,7 +241,7 @@ static inline int synthvid_send(struct hv_device *hdev,
+ 
+ 	ret = vmbus_sendpacket(hdev->channel, msg,
+ 			       msg->vid_hdr.size + sizeof(struct pipe_msg_hdr),
+-			       atomic64_inc_return(&request_id),
++			       atomic64_inc_return_unchecked(&request_id),
+ 			       VM_PKT_DATA_INBAND, 0);
+ 
+ 	if (ret)
+diff --git a/drivers/video/i810/i810_accel.c b/drivers/video/i810/i810_accel.c
+index 7672d2e..b56437f 100644
+--- a/drivers/video/i810/i810_accel.c
++++ b/drivers/video/i810/i810_accel.c
+@@ -73,6 +73,7 @@ static inline int wait_for_space(struct fb_info *info, u32 space)
+ 		}
+ 	}
+ 	printk("ringbuffer lockup!!!\n");
++	printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space);
+ 	i810_report_error(mmio); 
+ 	par->dev_flags |= LOCKUP;
+ 	info->pixmap.scan_align = 1;
+diff --git a/drivers/video/logo/logo_linux_clut224.ppm b/drivers/video/logo/logo_linux_clut224.ppm
+index 3c14e43..2630570 100644
+--- a/drivers/video/logo/logo_linux_clut224.ppm
++++ b/drivers/video/logo/logo_linux_clut224.ppm
+@@ -2,1603 +2,1123 @@ P3
+ # Standard 224-color Linux logo
+ 80 80
+ 255
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  6   6   6   6   6   6  10  10  10  10  10  10
+- 10  10  10   6   6   6   6   6   6   6   6   6
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   6   6   6  10  10  10  14  14  14
+- 22  22  22  26  26  26  30  30  30  34  34  34
+- 30  30  30  30  30  30  26  26  26  18  18  18
+- 14  14  14  10  10  10   6   6   6   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   1   0   0   1   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  6   6   6  14  14  14  26  26  26  42  42  42
+- 54  54  54  66  66  66  78  78  78  78  78  78
+- 78  78  78  74  74  74  66  66  66  54  54  54
+- 42  42  42  26  26  26  18  18  18  10  10  10
+-  6   6   6   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   1   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0  10  10  10
+- 22  22  22  42  42  42  66  66  66  86  86  86
+- 66  66  66  38  38  38  38  38  38  22  22  22
+- 26  26  26  34  34  34  54  54  54  66  66  66
+- 86  86  86  70  70  70  46  46  46  26  26  26
+- 14  14  14   6   6   6   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   1   0   0   1   0   0   1   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0  10  10  10  26  26  26
+- 50  50  50  82  82  82  58  58  58   6   6   6
+-  2   2   6   2   2   6   2   2   6   2   2   6
+-  2   2   6   2   2   6   2   2   6   2   2   6
+-  6   6   6  54  54  54  86  86  86  66  66  66
+- 38  38  38  18  18  18   6   6   6   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   6   6   6  22  22  22  50  50  50
+- 78  78  78  34  34  34   2   2   6   2   2   6
+-  2   2   6   2   2   6   2   2   6   2   2   6
+-  2   2   6   2   2   6   2   2   6   2   2   6
+-  2   2   6   2   2   6   6   6   6  70  70  70
+- 78  78  78  46  46  46  22  22  22   6   6   6
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
+-  0   0   0   0   0   0   0   0   0   0   0   0
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++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  5 5 5  4 3 3  6 6 6
++5 5 5  4 3 3  4 3 3  4 3 3  5 5 5  5 5 5
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  5 5 5  4 3 3
++5 5 5  4 3 3  5 5 5  5 5 5  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4  4 4 4  4 4 4  4 4 4  4 4 4
++4 4 4  4 4 4
+diff --git a/drivers/video/matrox/matroxfb_DAC1064.c b/drivers/video/matrox/matroxfb_DAC1064.c
+index a01147f..5d896f8 100644
+--- a/drivers/video/matrox/matroxfb_DAC1064.c
++++ b/drivers/video/matrox/matroxfb_DAC1064.c
+@@ -1088,14 +1088,20 @@ static void MGAG100_restore(struct matrox_fb_info *minfo)
+ 
+ #ifdef CONFIG_FB_MATROX_MYSTIQUE
+ struct matrox_switch matrox_mystique = {
+-	MGA1064_preinit, MGA1064_reset, MGA1064_init, MGA1064_restore,
++	.preinit = MGA1064_preinit,
++	.reset = MGA1064_reset,
++	.init = MGA1064_init,
++	.restore = MGA1064_restore,
+ };
+ EXPORT_SYMBOL(matrox_mystique);
+ #endif
+ 
+ #ifdef CONFIG_FB_MATROX_G
+ struct matrox_switch matrox_G100 = {
+-	MGAG100_preinit, MGAG100_reset, MGAG100_init, MGAG100_restore,
++	.preinit = MGAG100_preinit,
++	.reset = MGAG100_reset,
++	.init = MGAG100_init,
++	.restore = MGAG100_restore,
+ };
+ EXPORT_SYMBOL(matrox_G100);
+ #endif
+diff --git a/drivers/video/matrox/matroxfb_Ti3026.c b/drivers/video/matrox/matroxfb_Ti3026.c
+index 195ad7c..09743fc 100644
+--- a/drivers/video/matrox/matroxfb_Ti3026.c
++++ b/drivers/video/matrox/matroxfb_Ti3026.c
+@@ -738,7 +738,10 @@ static int Ti3026_preinit(struct matrox_fb_info *minfo)
+ }
+ 
+ struct matrox_switch matrox_millennium = {
+-	Ti3026_preinit, Ti3026_reset, Ti3026_init, Ti3026_restore
++	.preinit = Ti3026_preinit,
++	.reset = Ti3026_reset,
++	.init = Ti3026_init,
++	.restore = Ti3026_restore
+ };
+ EXPORT_SYMBOL(matrox_millennium);
+ #endif
+diff --git a/drivers/video/mb862xx/mb862xxfb_accel.c b/drivers/video/mb862xx/mb862xxfb_accel.c
+index fe92eed..106e085 100644
+--- a/drivers/video/mb862xx/mb862xxfb_accel.c
++++ b/drivers/video/mb862xx/mb862xxfb_accel.c
+@@ -312,14 +312,18 @@ void mb862xxfb_init_accel(struct fb_info *info, int xres)
+ 	struct mb862xxfb_par *par = info->par;
+ 
+ 	if (info->var.bits_per_pixel == 32) {
+-		info->fbops->fb_fillrect = cfb_fillrect;
+-		info->fbops->fb_copyarea = cfb_copyarea;
+-		info->fbops->fb_imageblit = cfb_imageblit;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_fillrect = cfb_fillrect;
++		*(void **)&info->fbops->fb_copyarea = cfb_copyarea;
++		*(void **)&info->fbops->fb_imageblit = cfb_imageblit;
++		pax_close_kernel();
+ 	} else {
+ 		outreg(disp, GC_L0EM, 3);
+-		info->fbops->fb_fillrect = mb86290fb_fillrect;
+-		info->fbops->fb_copyarea = mb86290fb_copyarea;
+-		info->fbops->fb_imageblit = mb86290fb_imageblit;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_fillrect = mb86290fb_fillrect;
++		*(void **)&info->fbops->fb_copyarea = mb86290fb_copyarea;
++		*(void **)&info->fbops->fb_imageblit = mb86290fb_imageblit;
++		pax_close_kernel();
+ 	}
+ 	outreg(draw, GDC_REG_DRAW_BASE, 0);
+ 	outreg(draw, GDC_REG_MODE_MISC, 0x8000);
+diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
+index def0412..fed6529 100644
+--- a/drivers/video/nvidia/nvidia.c
++++ b/drivers/video/nvidia/nvidia.c
+@@ -669,19 +669,23 @@ static int nvidiafb_set_par(struct fb_info *info)
+ 	info->fix.line_length = (info->var.xres_virtual *
+ 				 info->var.bits_per_pixel) >> 3;
+ 	if (info->var.accel_flags) {
+-		info->fbops->fb_imageblit = nvidiafb_imageblit;
+-		info->fbops->fb_fillrect = nvidiafb_fillrect;
+-		info->fbops->fb_copyarea = nvidiafb_copyarea;
+-		info->fbops->fb_sync = nvidiafb_sync;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_imageblit = nvidiafb_imageblit;
++		*(void **)&info->fbops->fb_fillrect = nvidiafb_fillrect;
++		*(void **)&info->fbops->fb_copyarea = nvidiafb_copyarea;
++		*(void **)&info->fbops->fb_sync = nvidiafb_sync;
++		pax_close_kernel();
+ 		info->pixmap.scan_align = 4;
+ 		info->flags &= ~FBINFO_HWACCEL_DISABLED;
+ 		info->flags |= FBINFO_READS_FAST;
+ 		NVResetGraphics(info);
+ 	} else {
+-		info->fbops->fb_imageblit = cfb_imageblit;
+-		info->fbops->fb_fillrect = cfb_fillrect;
+-		info->fbops->fb_copyarea = cfb_copyarea;
+-		info->fbops->fb_sync = NULL;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_imageblit = cfb_imageblit;
++		*(void **)&info->fbops->fb_fillrect = cfb_fillrect;
++		*(void **)&info->fbops->fb_copyarea = cfb_copyarea;
++		*(void **)&info->fbops->fb_sync = NULL;
++		pax_close_kernel();
+ 		info->pixmap.scan_align = 1;
+ 		info->flags |= FBINFO_HWACCEL_DISABLED;
+ 		info->flags &= ~FBINFO_READS_FAST;
+@@ -1173,8 +1177,11 @@ static int nvidia_set_fbinfo(struct fb_info *info)
+ 	info->pixmap.size = 8 * 1024;
+ 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
+ 
+-	if (!hwcur)
+-	    info->fbops->fb_cursor = NULL;
++	if (!hwcur) {
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_cursor = NULL;
++		pax_close_kernel();
++	}
+ 
+ 	info->var.accel_flags = (!noaccel);
+ 
+diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
+index 669a81f..e216d76 100644
+--- a/drivers/video/omap2/dss/display.c
++++ b/drivers/video/omap2/dss/display.c
+@@ -137,12 +137,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
+ 	snprintf(dssdev->alias, sizeof(dssdev->alias),
+ 			"display%d", disp_num_counter++);
+ 
++	pax_open_kernel();
+ 	if (drv && drv->get_resolution == NULL)
+-		drv->get_resolution = omapdss_default_get_resolution;
++		*(void **)&drv->get_resolution = omapdss_default_get_resolution;
+ 	if (drv && drv->get_recommended_bpp == NULL)
+-		drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
++		*(void **)&drv->get_recommended_bpp = omapdss_default_get_recommended_bpp;
+ 	if (drv && drv->get_timings == NULL)
+-		drv->get_timings = omapdss_default_get_timings;
++		*(void **)&drv->get_timings = omapdss_default_get_timings;
++	pax_close_kernel();
+ 
+ 	mutex_lock(&panel_list_mutex);
+ 	list_add_tail(&dssdev->panel_list, &panel_list);
+diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
+index 83433cb..71e9b98 100644
+--- a/drivers/video/s1d13xxxfb.c
++++ b/drivers/video/s1d13xxxfb.c
+@@ -881,8 +881,10 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
+ 
+ 	switch(prod_id) {
+ 	case S1D13506_PROD_ID:	/* activate acceleration */
+-		s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
+-		s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
++		pax_open_kernel();
++		*(void **)&s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
++		*(void **)&s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
++		pax_close_kernel();
+ 		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
+ 			FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
+ 		break;
+diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
+index 2bcc84a..29dd1ea 100644
+--- a/drivers/video/sh_mobile_lcdcfb.c
++++ b/drivers/video/sh_mobile_lcdcfb.c
+@@ -439,9 +439,9 @@ static unsigned long lcdc_sys_read_data(void *handle)
+ }
+ 
+ static struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = {
+-	lcdc_sys_write_index,
+-	lcdc_sys_write_data,
+-	lcdc_sys_read_data,
++	.write_index = lcdc_sys_write_index,
++	.write_data = lcdc_sys_write_data,
++	.read_data = lcdc_sys_read_data,
+ };
+ 
+ static int sh_mobile_lcdc_sginit(struct fb_info *info,
+diff --git a/drivers/video/smscufx.c b/drivers/video/smscufx.c
+index d513ed6..90b0de9 100644
+--- a/drivers/video/smscufx.c
++++ b/drivers/video/smscufx.c
+@@ -1175,7 +1175,9 @@ static int ufx_ops_release(struct fb_info *info, int user)
+ 		fb_deferred_io_cleanup(info);
+ 		kfree(info->fbdefio);
+ 		info->fbdefio = NULL;
+-		info->fbops->fb_mmap = ufx_ops_mmap;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_mmap = ufx_ops_mmap;
++		pax_close_kernel();
+ 	}
+ 
+ 	pr_debug("released /dev/fb%d user=%d count=%d",
+diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
+index 77b890e..458e666 100644
+--- a/drivers/video/udlfb.c
++++ b/drivers/video/udlfb.c
+@@ -623,11 +623,11 @@ static int dlfb_handle_damage(struct dlfb_data *dev, int x, int y,
+ 		dlfb_urb_completion(urb);
+ 
+ error:
+-	atomic_add(bytes_sent, &dev->bytes_sent);
+-	atomic_add(bytes_identical, &dev->bytes_identical);
+-	atomic_add(width*height*2, &dev->bytes_rendered);
++	atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
++	atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
++	atomic_add_unchecked(width*height*2, &dev->bytes_rendered);
+ 	end_cycles = get_cycles();
+-	atomic_add(((unsigned int) ((end_cycles - start_cycles)
++	atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
+ 		    >> 10)), /* Kcycles */
+ 		   &dev->cpu_kcycles_used);
+ 
+@@ -748,11 +748,11 @@ static void dlfb_dpy_deferred_io(struct fb_info *info,
+ 		dlfb_urb_completion(urb);
+ 
+ error:
+-	atomic_add(bytes_sent, &dev->bytes_sent);
+-	atomic_add(bytes_identical, &dev->bytes_identical);
+-	atomic_add(bytes_rendered, &dev->bytes_rendered);
++	atomic_add_unchecked(bytes_sent, &dev->bytes_sent);
++	atomic_add_unchecked(bytes_identical, &dev->bytes_identical);
++	atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered);
+ 	end_cycles = get_cycles();
+-	atomic_add(((unsigned int) ((end_cycles - start_cycles)
++	atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles)
+ 		    >> 10)), /* Kcycles */
+ 		   &dev->cpu_kcycles_used);
+ }
+@@ -993,7 +993,9 @@ static int dlfb_ops_release(struct fb_info *info, int user)
+ 		fb_deferred_io_cleanup(info);
+ 		kfree(info->fbdefio);
+ 		info->fbdefio = NULL;
+-		info->fbops->fb_mmap = dlfb_ops_mmap;
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_mmap = dlfb_ops_mmap;
++		pax_close_kernel();
+ 	}
+ 
+ 	pr_warn("released /dev/fb%d user=%d count=%d\n",
+@@ -1376,7 +1378,7 @@ static ssize_t metrics_bytes_rendered_show(struct device *fbdev,
+ 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
+ 	struct dlfb_data *dev = fb_info->par;
+ 	return snprintf(buf, PAGE_SIZE, "%u\n",
+-			atomic_read(&dev->bytes_rendered));
++			atomic_read_unchecked(&dev->bytes_rendered));
+ }
+ 
+ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
+@@ -1384,7 +1386,7 @@ static ssize_t metrics_bytes_identical_show(struct device *fbdev,
+ 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
+ 	struct dlfb_data *dev = fb_info->par;
+ 	return snprintf(buf, PAGE_SIZE, "%u\n",
+-			atomic_read(&dev->bytes_identical));
++			atomic_read_unchecked(&dev->bytes_identical));
+ }
+ 
+ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
+@@ -1392,7 +1394,7 @@ static ssize_t metrics_bytes_sent_show(struct device *fbdev,
+ 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
+ 	struct dlfb_data *dev = fb_info->par;
+ 	return snprintf(buf, PAGE_SIZE, "%u\n",
+-			atomic_read(&dev->bytes_sent));
++			atomic_read_unchecked(&dev->bytes_sent));
+ }
+ 
+ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
+@@ -1400,7 +1402,7 @@ static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev,
+ 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
+ 	struct dlfb_data *dev = fb_info->par;
+ 	return snprintf(buf, PAGE_SIZE, "%u\n",
+-			atomic_read(&dev->cpu_kcycles_used));
++			atomic_read_unchecked(&dev->cpu_kcycles_used));
+ }
+ 
+ static ssize_t edid_show(
+@@ -1460,10 +1462,10 @@ static ssize_t metrics_reset_store(struct device *fbdev,
+ 	struct fb_info *fb_info = dev_get_drvdata(fbdev);
+ 	struct dlfb_data *dev = fb_info->par;
+ 
+-	atomic_set(&dev->bytes_rendered, 0);
+-	atomic_set(&dev->bytes_identical, 0);
+-	atomic_set(&dev->bytes_sent, 0);
+-	atomic_set(&dev->cpu_kcycles_used, 0);
++	atomic_set_unchecked(&dev->bytes_rendered, 0);
++	atomic_set_unchecked(&dev->bytes_identical, 0);
++	atomic_set_unchecked(&dev->bytes_sent, 0);
++	atomic_set_unchecked(&dev->cpu_kcycles_used, 0);
+ 
+ 	return count;
+ }
+diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
+index 256fba7..6e75516 100644
+--- a/drivers/video/uvesafb.c
++++ b/drivers/video/uvesafb.c
+@@ -19,6 +19,7 @@
+ #include <linux/io.h>
+ #include <linux/mutex.h>
+ #include <linux/slab.h>
++#include <linux/moduleloader.h>
+ #include <video/edid.h>
+ #include <video/uvesafb.h>
+ #ifdef CONFIG_X86
+@@ -565,10 +566,32 @@ static int uvesafb_vbe_getpmi(struct uvesafb_ktask *task,
+ 	if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) {
+ 		par->pmi_setpal = par->ypan = 0;
+ 	} else {
++
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_MODULES
++		par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx);
++#endif
++		if (!par->pmi_code) {
++			par->pmi_setpal = par->ypan = 0;
++			return 0;
++		}
++#endif
++
+ 		par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4)
+ 						+ task->t.regs.edi);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++		pax_open_kernel();
++		memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx);
++		pax_close_kernel();
++
++		par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]);
++		par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]);
++#else
+ 		par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1];
+ 		par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2];
++#endif
++
+ 		printk(KERN_INFO "uvesafb: protected mode interface info at "
+ 				 "%04x:%04x\n",
+ 				 (u16)task->t.regs.es, (u16)task->t.regs.edi);
+@@ -813,13 +836,14 @@ static int uvesafb_vbe_init(struct fb_info *info)
+ 	par->ypan = ypan;
+ 
+ 	if (par->pmi_setpal || par->ypan) {
++#if !defined(CONFIG_MODULES) || !defined(CONFIG_PAX_KERNEXEC)
+ 		if (__supported_pte_mask & _PAGE_NX) {
+ 			par->pmi_setpal = par->ypan = 0;
+ 			printk(KERN_WARNING "uvesafb: NX protection is active, "
+ 					    "better not use the PMI.\n");
+-		} else {
++		} else
++#endif
+ 			uvesafb_vbe_getpmi(task, par);
+-		}
+ 	}
+ #else
+ 	/* The protected mode interface is not available on non-x86. */
+@@ -1453,8 +1477,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
+ 	info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
+ 
+ 	/* Disable blanking if the user requested so. */
+-	if (!blank)
+-		info->fbops->fb_blank = NULL;
++	if (!blank) {
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_blank = NULL;
++		pax_close_kernel();
++	}
+ 
+ 	/*
+ 	 * Find out how much IO memory is required for the mode with
+@@ -1530,8 +1557,11 @@ static void uvesafb_init_info(struct fb_info *info, struct vbe_mode_ib *mode)
+ 	info->flags = FBINFO_FLAG_DEFAULT |
+ 			(par->ypan ? FBINFO_HWACCEL_YPAN : 0);
+ 
+-	if (!par->ypan)
+-		info->fbops->fb_pan_display = NULL;
++	if (!par->ypan) {
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_pan_display = NULL;
++		pax_close_kernel();
++	}
+ }
+ 
+ static void uvesafb_init_mtrr(struct fb_info *info)
+@@ -1792,6 +1822,11 @@ out_mode:
+ out:
+ 	kfree(par->vbe_modes);
+ 
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++	if (par->pmi_code)
++		module_free_exec(NULL, par->pmi_code);
++#endif
++
+ 	framebuffer_release(info);
+ 	return err;
+ }
+@@ -1816,6 +1851,12 @@ static int uvesafb_remove(struct platform_device *dev)
+ 			kfree(par->vbe_modes);
+ 			kfree(par->vbe_state_orig);
+ 			kfree(par->vbe_state_saved);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++			if (par->pmi_code)
++				module_free_exec(NULL, par->pmi_code);
++#endif
++
+ 		}
+ 
+ 		framebuffer_release(info);
+diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
+index 1c7da3b..56ea0bd 100644
+--- a/drivers/video/vesafb.c
++++ b/drivers/video/vesafb.c
+@@ -9,6 +9,7 @@
+  */
+ 
+ #include <linux/module.h>
++#include <linux/moduleloader.h>
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+ #include <linux/string.h>
+@@ -52,8 +53,8 @@ static int   vram_remap;			/* Set amount of memory to be used */
+ static int   vram_total;			/* Set total amount of memory */
+ static int   pmi_setpal __read_mostly = 1;	/* pmi for palette changes ??? */
+ static int   ypan       __read_mostly;		/* 0..nothing, 1..ypan, 2..ywrap */
+-static void  (*pmi_start)(void) __read_mostly;
+-static void  (*pmi_pal)  (void) __read_mostly;
++static void  (*pmi_start)(void) __read_only;
++static void  (*pmi_pal)  (void) __read_only;
+ static int   depth      __read_mostly;
+ static int   vga_compat __read_mostly;
+ /* --------------------------------------------------------------------- */
+@@ -234,6 +235,7 @@ static int vesafb_probe(struct platform_device *dev)
+ 	unsigned int size_remap;
+ 	unsigned int size_total;
+ 	char *option = NULL;
++	void *pmi_code = NULL;
+ 
+ 	/* ignore error return of fb_get_options */
+ 	fb_get_options("vesafb", &option);
+@@ -280,10 +282,6 @@ static int vesafb_probe(struct platform_device *dev)
+ 		size_remap = size_total;
+ 	vesafb_fix.smem_len = size_remap;
+ 
+-#ifndef __i386__
+-	screen_info.vesapm_seg = 0;
+-#endif
+-
+ 	if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
+ 		printk(KERN_WARNING
+ 		       "vesafb: cannot reserve video memory at 0x%lx\n",
+@@ -312,9 +310,21 @@ static int vesafb_probe(struct platform_device *dev)
+ 	printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
+ 	       vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
+ 
++#ifdef __i386__
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++	pmi_code = module_alloc_exec(screen_info.vesapm_size);
++	if (!pmi_code)
++#elif !defined(CONFIG_PAX_KERNEXEC)
++	if (0)
++#endif
++
++#endif
++	screen_info.vesapm_seg = 0;
++
+ 	if (screen_info.vesapm_seg) {
+-		printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
+-		       screen_info.vesapm_seg,screen_info.vesapm_off);
++		printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n",
++		       screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size);
+ 	}
+ 
+ 	if (screen_info.vesapm_seg < 0xc000)
+@@ -322,9 +332,25 @@ static int vesafb_probe(struct platform_device *dev)
+ 
+ 	if (ypan || pmi_setpal) {
+ 		unsigned short *pmi_base;
++
+ 		pmi_base  = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
+-		pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
+-		pmi_pal   = (void*)((char*)pmi_base + pmi_base[2]);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++		pax_open_kernel();
++		memcpy(pmi_code, pmi_base, screen_info.vesapm_size);
++#else
++		pmi_code  = pmi_base;
++#endif
++
++		pmi_start = (void*)((char*)pmi_code + pmi_base[1]);
++		pmi_pal   = (void*)((char*)pmi_code + pmi_base[2]);
++
++#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++		pmi_start = ktva_ktla(pmi_start);
++		pmi_pal = ktva_ktla(pmi_pal);
++		pax_close_kernel();
++#endif
++
+ 		printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
+ 		if (pmi_base[3]) {
+ 			printk(KERN_INFO "vesafb: pmi: ports = ");
+@@ -477,8 +503,11 @@ static int vesafb_probe(struct platform_device *dev)
+ 	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
+ 		(ypan ? FBINFO_HWACCEL_YPAN : 0);
+ 
+-	if (!ypan)
+-		info->fbops->fb_pan_display = NULL;
++	if (!ypan) {
++		pax_open_kernel();
++		*(void **)&info->fbops->fb_pan_display = NULL;
++		pax_close_kernel();
++	}
+ 
+ 	if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+ 		err = -ENOMEM;
+@@ -492,6 +521,11 @@ static int vesafb_probe(struct platform_device *dev)
+ 	fb_info(info, "%s frame buffer device\n", info->fix.id);
+ 	return 0;
+ err:
++
++#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC)
++	module_free_exec(NULL, pmi_code);
++#endif
++
+ 	if (info->screen_base)
+ 		iounmap(info->screen_base);
+ 	framebuffer_release(info);
+diff --git a/drivers/video/via/via_clock.h b/drivers/video/via/via_clock.h
+index 88714ae..16c2e11 100644
+--- a/drivers/video/via/via_clock.h
++++ b/drivers/video/via/via_clock.h
+@@ -56,7 +56,7 @@ struct via_clock {
+ 
+ 	void (*set_engine_pll_state)(u8 state);
+ 	void (*set_engine_pll)(struct via_pll_config config);
+-};
++} __no_const;
+ 
+ 
+ static inline u32 get_pll_internal_frequency(u32 ref_freq,
+diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
+index 5af64e9..053fe2f 100644
+--- a/drivers/xen/events/events_base.c
++++ b/drivers/xen/events/events_base.c
+@@ -1592,7 +1592,7 @@ void xen_irq_resume(void)
+ 	restore_pirqs();
+ }
+ 
+-static struct irq_chip xen_dynamic_chip __read_mostly = {
++static struct irq_chip xen_dynamic_chip = {
+ 	.name			= "xen-dyn",
+ 
+ 	.irq_disable		= disable_dynirq,
+@@ -1606,7 +1606,7 @@ static struct irq_chip xen_dynamic_chip __read_mostly = {
+ 	.irq_retrigger		= retrigger_dynirq,
+ };
+ 
+-static struct irq_chip xen_pirq_chip __read_mostly = {
++static struct irq_chip xen_pirq_chip = {
+ 	.name			= "xen-pirq",
+ 
+ 	.irq_startup		= startup_pirq,
+@@ -1626,7 +1626,7 @@ static struct irq_chip xen_pirq_chip __read_mostly = {
+ 	.irq_retrigger		= retrigger_dynirq,
+ };
+ 
+-static struct irq_chip xen_percpu_chip __read_mostly = {
++static struct irq_chip xen_percpu_chip = {
+ 	.name			= "xen-percpu",
+ 
+ 	.irq_disable		= disable_dynirq,
+diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
+index fef20db..d28b1ab 100644
+--- a/drivers/xen/xenfs/xenstored.c
++++ b/drivers/xen/xenfs/xenstored.c
+@@ -24,7 +24,12 @@ static int xsd_release(struct inode *inode, struct file *file)
+ static int xsd_kva_open(struct inode *inode, struct file *file)
+ {
+ 	file->private_data = (void *)kasprintf(GFP_KERNEL, "0x%p",
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++					       NULL);
++#else
+ 					       xen_store_interface);
++#endif
++
+ 	if (!file->private_data)
+ 		return -ENOMEM;
+ 	return 0;
+diff --git a/firmware/Makefile b/firmware/Makefile
+index cbb09ce..83d8abb 100644
+--- a/firmware/Makefile
++++ b/firmware/Makefile
+@@ -35,6 +35,7 @@ fw-shipped-$(CONFIG_BNX2X) += bnx2x/bnx2x-e1-6.2.9.0.fw \
+ 			      bnx2x/bnx2x-e1h-6.2.9.0.fw \
+ 			      bnx2x/bnx2x-e2-6.2.9.0.fw
+ fw-shipped-$(CONFIG_BNX2) += bnx2/bnx2-mips-09-6.2.1a.fw \
++			     bnx2/bnx2-mips-09-6.2.1b.fw \
+ 			     bnx2/bnx2-rv2p-09-6.0.17.fw \
+ 			     bnx2/bnx2-rv2p-09ax-6.0.17.fw \
+ 			     bnx2/bnx2-mips-06-6.2.1.fw \
+diff --git a/firmware/WHENCE b/firmware/WHENCE
+index 8388f02..da6751e 100644
+--- a/firmware/WHENCE
++++ b/firmware/WHENCE
+@@ -665,19 +665,20 @@ Driver: BNX2 - Broadcom NetXtremeII
+ File: bnx2/bnx2-mips-06-6.2.1.fw
+ File: bnx2/bnx2-rv2p-06-6.0.15.fw
+ File: bnx2/bnx2-mips-09-6.2.1a.fw
++File: bnx2/bnx2-mips-09-6.2.1b.fw
+ File: bnx2/bnx2-rv2p-09-6.0.17.fw
+ File: bnx2/bnx2-rv2p-09ax-6.0.17.fw
+ 
+ Licence:
+-
+- This file contains firmware data derived from proprietary unpublished
+- source code, Copyright (c) 2004 - 2010 Broadcom Corporation.
+-
+- Permission is hereby granted for the distribution of this firmware data
+- in hexadecimal or equivalent format, provided this copyright notice is
+- accompanying it.
+-
+-Found in hex form in kernel source.
++ 
++ This file contains firmware data derived from proprietary unpublished 
++ source code, Copyright (c) 2004 - 2010 Broadcom Corporation. 
++ 
++ Permission is hereby granted for the distribution of this firmware data 
++ in hexadecimal or equivalent format, provided this copyright notice is 
++ accompanying it. 
++ 
++Found in hex form in kernel source. 
+ 
+ --------------------------------------------------------------------------
+ 
+diff --git a/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex b/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex
+new file mode 100644
+index 0000000..43d7c4f
+--- /dev/null
++++ b/firmware/bnx2/bnx2-mips-09-6.2.1b.fw.ihex
+@@ -0,0 +1,6496 @@
++:10000000080001180800000000005594000000C816
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++:10006000000000000000000000000000080092589E
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++:10944000AD6D000C27BD0008AD6C0014A5600018C0
++:10945000AD690008A56700042409FF80A56800061F
++:109460003C081000A169001203E00008ACC80178B4
++:1094700034870E008CE9001894E6001294E4001082
++:1094800030C8FFFF0A000ECD3087FFFF27BDFFE089
++:10949000AFB100143C118000AFB00010AFBF001896
++:1094A00036380A00970F0032363001000E000B7F6D
++:1094B00031E43FFF8E0E0000240DFF803C042000AD
++:1094C00001C25821016D6024000C4940316A007FBF
++:1094D000012A4025010438253C048008AE270830C5
++:1094E0003486008090C500682403000230A200FF8B
++:1094F000104300048F9F00208F990024AC9F0068C8
++:10950000AC9900648FBF00188FB100148FB00010A9
++:1095100003E0000827BD00203C0A0800254A3A80E5
++:109520003C09080025293B103C08080025082F1C91
++:109530003C07080024E73BDC3C06080024C639044D
++:109540003C05080024A536583C0408002484325CFD
++:109550003C030800246339B83C0208002442375415
++:109560003C010800AC2A3F983C010800AC293F941C
++:109570003C010800AC283F903C010800AC273F9C10
++:109580003C010800AC263FAC3C010800AC253FA4E0
++:109590003C010800AC243FA03C010800AC233FB0D4
++:1095A0003C010800AC223FA803E0000800000000D6
++:1095B00080000940800009008008010080080080C8
++:1095C00080080000800E00008008008080080000F5
++:1095D00080000A8080000A00800009808000090065
++:00000001FF
+diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
+index c71e886..61d3d44b 100644
+--- a/fs/9p/vfs_addr.c
++++ b/fs/9p/vfs_addr.c
+@@ -187,7 +187,7 @@ static int v9fs_vfs_writepage_locked(struct page *page)
+ 
+ 	retval = v9fs_file_write_internal(inode,
+ 					  v9inode->writeback_fid,
+-					  (__force const char __user *)buffer,
++					  (const char __force_user *)buffer,
+ 					  len, &offset, 0);
+ 	if (retval > 0)
+ 		retval = 0;
+diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
+index bb7991c..481e21a 100644
+--- a/fs/9p/vfs_inode.c
++++ b/fs/9p/vfs_inode.c
+@@ -1312,7 +1312,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+ void
+ v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+ {
+-	char *s = nd_get_link(nd);
++	const char *s = nd_get_link(nd);
+ 
+ 	p9_debug(P9_DEBUG_VFS, " %s %s\n",
+ 		 dentry->d_name.name, IS_ERR(s) ? "<error>" : s);
+diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
+index 370b24c..ff0be7b 100644
+--- a/fs/Kconfig.binfmt
++++ b/fs/Kconfig.binfmt
+@@ -103,7 +103,7 @@ config HAVE_AOUT
+ 
+ config BINFMT_AOUT
+ 	tristate "Kernel support for a.out and ECOFF binaries"
+-	depends on HAVE_AOUT
++	depends on HAVE_AOUT && BROKEN
+ 	---help---
+ 	  A.out (Assembler.OUTput) is a set of formats for libraries and
+ 	  executables used in the earliest versions of UNIX.  Linux used
+diff --git a/fs/afs/inode.c b/fs/afs/inode.c
+index ce25d75..dc09eeb 100644
+--- a/fs/afs/inode.c
++++ b/fs/afs/inode.c
+@@ -141,7 +141,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
+ 	struct afs_vnode *vnode;
+ 	struct super_block *sb;
+ 	struct inode *inode;
+-	static atomic_t afs_autocell_ino;
++	static atomic_unchecked_t afs_autocell_ino;
+ 
+ 	_enter("{%x:%u},%*.*s,",
+ 	       AFS_FS_I(dir)->fid.vid, AFS_FS_I(dir)->fid.vnode,
+@@ -154,7 +154,7 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
+ 	data.fid.unique = 0;
+ 	data.fid.vnode = 0;
+ 
+-	inode = iget5_locked(sb, atomic_inc_return(&afs_autocell_ino),
++	inode = iget5_locked(sb, atomic_inc_return_unchecked(&afs_autocell_ino),
+ 			     afs_iget5_autocell_test, afs_iget5_set,
+ 			     &data);
+ 	if (!inode) {
+diff --git a/fs/aio.c b/fs/aio.c
+index 3241659..62856eb 100644
+--- a/fs/aio.c
++++ b/fs/aio.c
+@@ -389,7 +389,7 @@ static int aio_setup_ring(struct kioctx *ctx)
+ 	size += sizeof(struct io_event) * nr_events;
+ 
+ 	nr_pages = PFN_UP(size);
+-	if (nr_pages < 0)
++	if (nr_pages <= 0)
+ 		return -EINVAL;
+ 
+ 	file = aio_private_file(ctx, nr_pages);
+diff --git a/fs/attr.c b/fs/attr.c
+index 6530ced..4a827e2 100644
+--- a/fs/attr.c
++++ b/fs/attr.c
+@@ -102,6 +102,7 @@ int inode_newsize_ok(const struct inode *inode, loff_t offset)
+ 		unsigned long limit;
+ 
+ 		limit = rlimit(RLIMIT_FSIZE);
++		gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long)offset, 1);
+ 		if (limit != RLIM_INFINITY && offset > limit)
+ 			goto out_sig;
+ 		if (offset > inode->i_sb->s_maxbytes)
+diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
+index e3399dc..23b078e 100644
+--- a/fs/autofs4/dev-ioctl.c
++++ b/fs/autofs4/dev-ioctl.c
+@@ -103,6 +103,9 @@ static struct autofs_dev_ioctl *copy_dev_ioctl(struct autofs_dev_ioctl __user *i
+ 	if (tmp.size < sizeof(tmp))
+ 		return ERR_PTR(-EINVAL);
+ 
++	if (tmp.size > (PATH_MAX + sizeof(tmp)))
++		return ERR_PTR(-ENAMETOOLONG);
++
+ 	res = memdup_user(in, tmp.size);
+ 	if (!IS_ERR(res))
+ 		res->size = tmp.size;
+diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
+index 116fd38..c04182da 100644
+--- a/fs/autofs4/waitq.c
++++ b/fs/autofs4/waitq.c
+@@ -59,7 +59,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
+ {
+ 	unsigned long sigpipe, flags;
+ 	mm_segment_t fs;
+-	const char *data = (const char *)addr;
++	const char __user *data = (const char __force_user *)addr;
+ 	ssize_t wr = 0;
+ 
+ 	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
+@@ -340,6 +340,10 @@ static int validate_request(struct autofs_wait_queue **wait,
+ 	return 1;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++static atomic_unchecked_t autofs_dummy_name_id = ATOMIC_INIT(0);
++#endif
++
+ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
+ 		enum autofs_notify notify)
+ {
+@@ -385,7 +389,12 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
+ 
+ 	/* If this is a direct mount request create a dummy name */
+ 	if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++		/* this name does get written to userland via autofs4_write() */
++		qstr.len = sprintf(name, "%08x", atomic_inc_return_unchecked(&autofs_dummy_name_id));
++#else
+ 		qstr.len = sprintf(name, "%p", dentry);
++#endif
+ 	else {
+ 		qstr.len = autofs4_getpath(sbi, dentry, &name);
+ 		if (!qstr.len) {
+diff --git a/fs/befs/endian.h b/fs/befs/endian.h
+index 2722387..56059b5 100644
+--- a/fs/befs/endian.h
++++ b/fs/befs/endian.h
+@@ -11,7 +11,7 @@
+ 
+ #include <asm/byteorder.h>
+ 
+-static inline u64
++static inline u64 __intentional_overflow(-1)
+ fs64_to_cpu(const struct super_block *sb, fs64 n)
+ {
+ 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+@@ -29,7 +29,7 @@ cpu_to_fs64(const struct super_block *sb, u64 n)
+ 		return (__force fs64)cpu_to_be64(n);
+ }
+ 
+-static inline u32
++static inline u32 __intentional_overflow(-1)
+ fs32_to_cpu(const struct super_block *sb, fs32 n)
+ {
+ 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+@@ -47,7 +47,7 @@ cpu_to_fs32(const struct super_block *sb, u32 n)
+ 		return (__force fs32)cpu_to_be32(n);
+ }
+ 
+-static inline u16
++static inline u16 __intentional_overflow(-1)
+ fs16_to_cpu(const struct super_block *sb, fs16 n)
+ {
+ 	if (BEFS_SB(sb)->byte_order == BEFS_BYTESEX_LE)
+diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
+index ca0ba15..0fa3257 100644
+--- a/fs/binfmt_aout.c
++++ b/fs/binfmt_aout.c
+@@ -16,6 +16,7 @@
+ #include <linux/string.h>
+ #include <linux/fs.h>
+ #include <linux/file.h>
++#include <linux/security.h>
+ #include <linux/stat.h>
+ #include <linux/fcntl.h>
+ #include <linux/ptrace.h>
+@@ -58,6 +59,8 @@ static int aout_core_dump(struct coredump_params *cprm)
+ #endif
+ #       define START_STACK(u)   ((void __user *)u.start_stack)
+ 
++	memset(&dump, 0, sizeof(dump));
++
+ 	fs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	has_dumped = 1;
+@@ -68,10 +71,12 @@ static int aout_core_dump(struct coredump_params *cprm)
+ 
+ /* If the size of the dump file exceeds the rlimit, then see what would happen
+    if we wrote the stack, but not the data area.  */
++	gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1);
+ 	if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > cprm->limit)
+ 		dump.u_dsize = 0;
+ 
+ /* Make sure we have enough room to write the stack and data areas. */
++	gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1);
+ 	if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
+ 		dump.u_ssize = 0;
+ 
+@@ -232,6 +237,8 @@ static int load_aout_binary(struct linux_binprm * bprm)
+ 	rlim = rlimit(RLIMIT_DATA);
+ 	if (rlim >= RLIM_INFINITY)
+ 		rlim = ~0;
++
++	gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1);
+ 	if (ex.a_data + ex.a_bss > rlim)
+ 		return -ENOMEM;
+ 
+@@ -264,6 +271,27 @@ static int load_aout_binary(struct linux_binprm * bprm)
+ 
+ 	install_exec_creds(bprm);
+ 
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++	current->mm->pax_flags = 0UL;
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) {
++		current->mm->pax_flags |= MF_PAX_PAGEEXEC;
++
++#ifdef CONFIG_PAX_EMUTRAMP
++		if (N_FLAGS(ex) & F_PAX_EMUTRAMP)
++			current->mm->pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++		if (!(N_FLAGS(ex) & F_PAX_MPROTECT))
++			current->mm->pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++	}
++#endif
++
+ 	if (N_MAGIC(ex) == OMAGIC) {
+ 		unsigned long text_addr, map_size;
+ 		loff_t pos;
+@@ -321,7 +349,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
+ 		}
+ 
+ 		error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
+-				PROT_READ | PROT_WRITE | PROT_EXEC,
++				PROT_READ | PROT_WRITE,
+ 				MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
+ 				fd_offset + ex.a_text);
+ 		if (error != N_DATADDR(ex)) {
+diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
+index 35240a7..96dd7cf 100644
+--- a/fs/binfmt_elf.c
++++ b/fs/binfmt_elf.c
+@@ -34,6 +34,7 @@
+ #include <linux/utsname.h>
+ #include <linux/coredump.h>
+ #include <linux/sched.h>
++#include <linux/xattr.h>
+ #include <asm/uaccess.h>
+ #include <asm/param.h>
+ #include <asm/page.h>
+@@ -48,7 +49,7 @@
+ static int load_elf_binary(struct linux_binprm *bprm);
+ static int load_elf_library(struct file *);
+ static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *,
+-				int, int, unsigned long);
++				int, int, unsigned long) __intentional_overflow(-1);
+ 
+ /*
+  * If we don't support core dumping, then supply a NULL so we
+@@ -60,6 +61,14 @@ static int elf_core_dump(struct coredump_params *cprm);
+ #define elf_core_dump	NULL
+ #endif
+ 
++#ifdef CONFIG_PAX_MPROTECT
++static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags);
++#endif
++
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++static void elf_handle_mmap(struct file *file);
++#endif
++
+ #if ELF_EXEC_PAGESIZE > PAGE_SIZE
+ #define ELF_MIN_ALIGN	ELF_EXEC_PAGESIZE
+ #else
+@@ -79,6 +88,15 @@ static struct linux_binfmt elf_format = {
+ 	.load_binary	= load_elf_binary,
+ 	.load_shlib	= load_elf_library,
+ 	.core_dump	= elf_core_dump,
++
++#ifdef CONFIG_PAX_MPROTECT
++	.handle_mprotect= elf_handle_mprotect,
++#endif
++
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	.handle_mmap	= elf_handle_mmap,
++#endif
++
+ 	.min_coredump	= ELF_EXEC_PAGESIZE,
+ };
+ 
+@@ -86,6 +104,8 @@ static struct linux_binfmt elf_format = {
+ 
+ static int set_brk(unsigned long start, unsigned long end)
+ {
++	unsigned long e = end;
++
+ 	start = ELF_PAGEALIGN(start);
+ 	end = ELF_PAGEALIGN(end);
+ 	if (end > start) {
+@@ -94,7 +114,7 @@ static int set_brk(unsigned long start, unsigned long end)
+ 		if (BAD_ADDR(addr))
+ 			return addr;
+ 	}
+-	current->mm->start_brk = current->mm->brk = end;
++	current->mm->start_brk = current->mm->brk = e;
+ 	return 0;
+ }
+ 
+@@ -155,12 +175,13 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
+ 	elf_addr_t __user *u_rand_bytes;
+ 	const char *k_platform = ELF_PLATFORM;
+ 	const char *k_base_platform = ELF_BASE_PLATFORM;
+-	unsigned char k_rand_bytes[16];
++	u32 k_rand_bytes[4];
+ 	int items;
+ 	elf_addr_t *elf_info;
+ 	int ei_index = 0;
+ 	const struct cred *cred = current_cred();
+ 	struct vm_area_struct *vma;
++	unsigned long saved_auxv[AT_VECTOR_SIZE];
+ 
+ 	/*
+ 	 * In some cases (e.g. Hyper-Threading), we want to avoid L1
+@@ -202,8 +223,12 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
+ 	 * Generate 16 random bytes for userspace PRNG seeding.
+ 	 */
+ 	get_random_bytes(k_rand_bytes, sizeof(k_rand_bytes));
+-	u_rand_bytes = (elf_addr_t __user *)
+-		       STACK_ALLOC(p, sizeof(k_rand_bytes));
++	prandom_seed(k_rand_bytes[0] ^ prandom_u32());
++	prandom_seed(k_rand_bytes[1] ^ prandom_u32());
++	prandom_seed(k_rand_bytes[2] ^ prandom_u32());
++	prandom_seed(k_rand_bytes[3] ^ prandom_u32());
++	p = STACK_ROUND(p, sizeof(k_rand_bytes));
++	u_rand_bytes = (elf_addr_t __user *) p;
+ 	if (__copy_to_user(u_rand_bytes, k_rand_bytes, sizeof(k_rand_bytes)))
+ 		return -EFAULT;
+ 
+@@ -318,9 +343,11 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
+ 		return -EFAULT;
+ 	current->mm->env_end = p;
+ 
++	memcpy(saved_auxv, elf_info, ei_index * sizeof(elf_addr_t));
++
+ 	/* Put the elf_info on the stack in the right place.  */
+ 	sp = (elf_addr_t __user *)envp + 1;
+-	if (copy_to_user(sp, elf_info, ei_index * sizeof(elf_addr_t)))
++	if (copy_to_user(sp, saved_auxv, ei_index * sizeof(elf_addr_t)))
+ 		return -EFAULT;
+ 	return 0;
+ }
+@@ -388,15 +415,14 @@ static unsigned long total_mapping_size(struct elf_phdr *cmds, int nr)
+    an ELF header */
+ 
+ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
+-		struct file *interpreter, unsigned long *interp_map_addr,
+-		unsigned long no_base)
++		struct file *interpreter, unsigned long no_base)
+ {
+ 	struct elf_phdr *elf_phdata;
+ 	struct elf_phdr *eppnt;
+-	unsigned long load_addr = 0;
++	unsigned long load_addr = 0, pax_task_size = TASK_SIZE;
+ 	int load_addr_set = 0;
+ 	unsigned long last_bss = 0, elf_bss = 0;
+-	unsigned long error = ~0UL;
++	unsigned long error = -EINVAL;
+ 	unsigned long total_size;
+ 	int retval, i, size;
+ 
+@@ -442,6 +468,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
+ 		goto out_close;
+ 	}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (current->mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
+ 	eppnt = elf_phdata;
+ 	for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
+ 		if (eppnt->p_type == PT_LOAD) {
+@@ -465,8 +496,6 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
+ 			map_addr = elf_map(interpreter, load_addr + vaddr,
+ 					eppnt, elf_prot, elf_type, total_size);
+ 			total_size = 0;
+-			if (!*interp_map_addr)
+-				*interp_map_addr = map_addr;
+ 			error = map_addr;
+ 			if (BAD_ADDR(map_addr))
+ 				goto out_close;
+@@ -485,8 +514,8 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
+ 			k = load_addr + eppnt->p_vaddr;
+ 			if (BAD_ADDR(k) ||
+ 			    eppnt->p_filesz > eppnt->p_memsz ||
+-			    eppnt->p_memsz > TASK_SIZE ||
+-			    TASK_SIZE - eppnt->p_memsz < k) {
++			    eppnt->p_memsz > pax_task_size ||
++			    pax_task_size - eppnt->p_memsz < k) {
+ 				error = -ENOMEM;
+ 				goto out_close;
+ 			}
+@@ -525,9 +554,11 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
+ 		elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
+ 
+ 		/* Map the last of the bss segment */
+-		error = vm_brk(elf_bss, last_bss - elf_bss);
+-		if (BAD_ADDR(error))
+-			goto out_close;
++		if (last_bss > elf_bss) {
++			error = vm_brk(elf_bss, last_bss - elf_bss);
++			if (BAD_ADDR(error))
++				goto out_close;
++		}
+ 	}
+ 
+ 	error = load_addr;
+@@ -538,6 +569,336 @@ out:
+ 	return error;
+ }
+ 
++#ifdef CONFIG_PAX_PT_PAX_FLAGS
++#ifdef CONFIG_PAX_SOFTMODE
++static unsigned long pax_parse_pt_pax_softmode(const struct elf_phdr * const elf_phdata)
++{
++	unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (elf_phdata->p_flags & PF_PAGEEXEC)
++		pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (elf_phdata->p_flags & PF_SEGMEXEC)
++		pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++	if ((elf_phdata->p_flags & PF_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
++		pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++	if (elf_phdata->p_flags & PF_MPROTECT)
++		pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
++	if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP))
++		pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++	return pax_flags;
++}
++#endif
++
++static unsigned long pax_parse_pt_pax_hardmode(const struct elf_phdr * const elf_phdata)
++{
++	unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(elf_phdata->p_flags & PF_NOPAGEEXEC))
++		pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (!(elf_phdata->p_flags & PF_NOSEGMEXEC))
++		pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++	if (!(elf_phdata->p_flags & PF_NOEMUTRAMP))
++		pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++	if (!(elf_phdata->p_flags & PF_NOMPROTECT))
++		pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
++	if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP))
++		pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++	return pax_flags;
++}
++#endif
++
++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
++#ifdef CONFIG_PAX_SOFTMODE
++static unsigned long pax_parse_xattr_pax_softmode(unsigned long pax_flags_softmode)
++{
++	unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (pax_flags_softmode & MF_PAX_PAGEEXEC)
++		pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (pax_flags_softmode & MF_PAX_SEGMEXEC)
++		pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++	if ((pax_flags_softmode & MF_PAX_EMUTRAMP) && (pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)))
++		pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++	if (pax_flags_softmode & MF_PAX_MPROTECT)
++		pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
++	if (randomize_va_space && (pax_flags_softmode & MF_PAX_RANDMMAP))
++		pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++	return pax_flags;
++}
++#endif
++
++static unsigned long pax_parse_xattr_pax_hardmode(unsigned long pax_flags_hardmode)
++{
++	unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(pax_flags_hardmode & MF_PAX_PAGEEXEC))
++		pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (!(pax_flags_hardmode & MF_PAX_SEGMEXEC))
++		pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++	if (!(pax_flags_hardmode & MF_PAX_EMUTRAMP))
++		pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++	if (!(pax_flags_hardmode & MF_PAX_MPROTECT))
++		pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)
++	if (randomize_va_space && !(pax_flags_hardmode & MF_PAX_RANDMMAP))
++		pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++	return pax_flags;
++}
++#endif
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++static unsigned long pax_parse_defaults(void)
++{
++	unsigned long pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_SOFTMODE
++	if (pax_softmode)
++		return pax_flags;
++#endif
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++	pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (randomize_va_space)
++		pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++	return pax_flags;
++}
++
++static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex)
++{
++	unsigned long pax_flags = PAX_PARSE_FLAGS_FALLBACK;
++
++#ifdef CONFIG_PAX_EI_PAX
++
++#ifdef CONFIG_PAX_SOFTMODE
++	if (pax_softmode)
++		return pax_flags;
++#endif
++
++	pax_flags = 0UL;
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC))
++		pax_flags |= MF_PAX_PAGEEXEC;
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC))
++		pax_flags |= MF_PAX_SEGMEXEC;
++#endif
++
++#ifdef CONFIG_PAX_EMUTRAMP
++	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP))
++		pax_flags |= MF_PAX_EMUTRAMP;
++#endif
++
++#ifdef CONFIG_PAX_MPROTECT
++	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT))
++		pax_flags |= MF_PAX_MPROTECT;
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++	if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP))
++		pax_flags |= MF_PAX_RANDMMAP;
++#endif
++
++#endif
++
++	return pax_flags;
++
++}
++
++static unsigned long pax_parse_pt_pax(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata)
++{
++
++#ifdef CONFIG_PAX_PT_PAX_FLAGS
++	unsigned long i;
++
++	for (i = 0UL; i < elf_ex->e_phnum; i++)
++		if (elf_phdata[i].p_type == PT_PAX_FLAGS) {
++			if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) ||
++			    ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) ||
++			    ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) ||
++			    ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) ||
++			    ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP)))
++				return PAX_PARSE_FLAGS_FALLBACK;
++
++#ifdef CONFIG_PAX_SOFTMODE
++			if (pax_softmode)
++				return pax_parse_pt_pax_softmode(&elf_phdata[i]);
++			else
++#endif
++
++				return pax_parse_pt_pax_hardmode(&elf_phdata[i]);
++			break;
++		}
++#endif
++
++	return PAX_PARSE_FLAGS_FALLBACK;
++}
++
++static unsigned long pax_parse_xattr_pax(struct file * const file)
++{
++
++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
++	ssize_t xattr_size, i;
++	unsigned char xattr_value[sizeof("pemrs") - 1];
++	unsigned long pax_flags_hardmode = 0UL, pax_flags_softmode = 0UL;
++
++	xattr_size = pax_getxattr(file->f_path.dentry, xattr_value, sizeof xattr_value);
++	if (xattr_size < 0 || xattr_size > sizeof xattr_value)
++		return PAX_PARSE_FLAGS_FALLBACK;
++
++	for (i = 0; i < xattr_size; i++)
++		switch (xattr_value[i]) {
++		default:
++			return PAX_PARSE_FLAGS_FALLBACK;
++
++#define parse_flag(option1, option2, flag)			\
++		case option1:					\
++			if (pax_flags_hardmode & MF_PAX_##flag)	\
++				return PAX_PARSE_FLAGS_FALLBACK;\
++			pax_flags_hardmode |= MF_PAX_##flag;	\
++			break;					\
++		case option2:					\
++			if (pax_flags_softmode & MF_PAX_##flag)	\
++				return PAX_PARSE_FLAGS_FALLBACK;\
++			pax_flags_softmode |= MF_PAX_##flag;	\
++			break;
++
++		parse_flag('p', 'P', PAGEEXEC);
++		parse_flag('e', 'E', EMUTRAMP);
++		parse_flag('m', 'M', MPROTECT);
++		parse_flag('r', 'R', RANDMMAP);
++		parse_flag('s', 'S', SEGMEXEC);
++
++#undef parse_flag
++		}
++
++	if (pax_flags_hardmode & pax_flags_softmode)
++		return PAX_PARSE_FLAGS_FALLBACK;
++
++#ifdef CONFIG_PAX_SOFTMODE
++	if (pax_softmode)
++		return pax_parse_xattr_pax_softmode(pax_flags_softmode);
++	else
++#endif
++
++		return pax_parse_xattr_pax_hardmode(pax_flags_hardmode);
++#else
++	return PAX_PARSE_FLAGS_FALLBACK;
++#endif
++
++}
++
++static long pax_parse_pax_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata, struct file * const file)
++{
++	unsigned long pax_flags, ei_pax_flags,  pt_pax_flags, xattr_pax_flags;
++
++	pax_flags = pax_parse_defaults();
++	ei_pax_flags = pax_parse_ei_pax(elf_ex);
++	pt_pax_flags = pax_parse_pt_pax(elf_ex, elf_phdata);
++	xattr_pax_flags = pax_parse_xattr_pax(file);
++
++	if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
++	    xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK &&
++	    pt_pax_flags != xattr_pax_flags)
++		return -EINVAL;
++	if (xattr_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
++		pax_flags = xattr_pax_flags;
++	else if (pt_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
++		pax_flags = pt_pax_flags;
++	else if (ei_pax_flags != PAX_PARSE_FLAGS_FALLBACK)
++		pax_flags = ei_pax_flags;
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC)
++	if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++		if ((__supported_pte_mask & _PAGE_NX))
++			pax_flags &= ~MF_PAX_SEGMEXEC;
++		else
++			pax_flags &= ~MF_PAX_PAGEEXEC;
++	}
++#endif
++
++	if (0 > pax_check_flags(&pax_flags))
++		return -EINVAL;
++
++	current->mm->pax_flags = pax_flags;
++	return 0;
++}
++#endif
++
+ /*
+  * These are the functions used to load ELF style executables and shared
+  * libraries.  There is no binary dependent code anywhere else.
+@@ -551,6 +912,11 @@ static unsigned long randomize_stack_top(unsigned long stack_top)
+ {
+ 	unsigned long random_variable = 0;
+ 
++#ifdef CONFIG_PAX_RANDUSTACK
++	if (current->mm->pax_flags & MF_PAX_RANDMMAP)
++		return stack_top - current->mm->delta_stack;
++#endif
++
+ 	if ((current->flags & PF_RANDOMIZE) &&
+ 		!(current->personality & ADDR_NO_RANDOMIZE)) {
+ 		random_variable = (unsigned long) get_random_int();
+@@ -570,7 +936,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
+  	unsigned long load_addr = 0, load_bias = 0;
+ 	int load_addr_set = 0;
+ 	char * elf_interpreter = NULL;
+-	unsigned long error;
++	unsigned long error = 0;
+ 	struct elf_phdr *elf_ppnt, *elf_phdata;
+ 	unsigned long elf_bss, elf_brk;
+ 	int retval, i;
+@@ -580,12 +946,12 @@ static int load_elf_binary(struct linux_binprm *bprm)
+ 	unsigned long start_code, end_code, start_data, end_data;
+ 	unsigned long reloc_func_desc __maybe_unused = 0;
+ 	int executable_stack = EXSTACK_DEFAULT;
+-	unsigned long def_flags = 0;
+ 	struct pt_regs *regs = current_pt_regs();
+ 	struct {
+ 		struct elfhdr elf_ex;
+ 		struct elfhdr interp_elf_ex;
+ 	} *loc;
++	unsigned long pax_task_size;
+ 
+ 	loc = kmalloc(sizeof(*loc), GFP_KERNEL);
+ 	if (!loc) {
+@@ -721,11 +1087,82 @@ static int load_elf_binary(struct linux_binprm *bprm)
+ 		goto out_free_dentry;
+ 
+ 	/* OK, This is the point of no return */
+-	current->mm->def_flags = def_flags;
++	current->mm->def_flags = 0;
+ 
+ 	/* Do this immediately, since STACK_TOP as used in setup_arg_pages
+ 	   may depend on the personality.  */
+ 	SET_PERSONALITY(loc->elf_ex);
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++	current->mm->pax_flags = 0UL;
++#endif
++
++#ifdef CONFIG_PAX_DLRESOLVE
++	current->mm->call_dl_resolve = 0UL;
++#endif
++
++#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
++	current->mm->call_syscall = 0UL;
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++	current->mm->delta_mmap = 0UL;
++	current->mm->delta_stack = 0UL;
++#endif
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++	if (0 > pax_parse_pax_flags(&loc->elf_ex, elf_phdata, bprm->file)) {
++		send_sig(SIGKILL, current, 0);
++		goto out_free_dentry;
++	}
++#endif
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++	pax_set_initial_flags(bprm);
++#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
++	if (pax_set_initial_flags_func)
++		(pax_set_initial_flags_func)(bprm);
++#endif
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++	if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !(__supported_pte_mask & _PAGE_NX)) {
++		current->mm->context.user_cs_limit = PAGE_SIZE;
++		current->mm->def_flags |= VM_PAGEEXEC | VM_NOHUGEPAGE;
++	}
++#endif
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++		current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE;
++		current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE;
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++		current->mm->def_flags |= VM_NOHUGEPAGE;
++	} else
++#endif
++
++	pax_task_size = TASK_SIZE;
++
++#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC)
++	if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++		set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu());
++		put_cpu();
++	}
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++	if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
++		current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT;
++		current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT;
++	}
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++	if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++		executable_stack = EXSTACK_DISABLE_X;
++		current->personality &= ~READ_IMPLIES_EXEC;
++	} else
++#endif
++
+ 	if (elf_read_implies_exec(loc->elf_ex, executable_stack))
+ 		current->personality |= READ_IMPLIES_EXEC;
+ 
+@@ -816,6 +1253,20 @@ static int load_elf_binary(struct linux_binprm *bprm)
+ #else
+ 			load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr);
+ #endif
++
++#ifdef CONFIG_PAX_RANDMMAP
++			/* PaX: randomize base address at the default exe base if requested */
++			if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) {
++#ifdef CONFIG_SPARC64
++				load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1);
++#else
++				load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT;
++#endif
++				load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias);
++				elf_flags |= MAP_FIXED;
++			}
++#endif
++
+ 			total_size = total_mapping_size(elf_phdata,
+ 							loc->elf_ex.e_phnum);
+ 			if (!total_size) {
+@@ -854,9 +1305,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
+ 		 * allowed task size. Note that p_filesz must always be
+ 		 * <= p_memsz so it is only necessary to check p_memsz.
+ 		 */
+-		if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
+-		    elf_ppnt->p_memsz > TASK_SIZE ||
+-		    TASK_SIZE - elf_ppnt->p_memsz < k) {
++		if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz ||
++		    elf_ppnt->p_memsz > pax_task_size ||
++		    pax_task_size - elf_ppnt->p_memsz < k) {
+ 			/* set_brk can never work. Avoid overflows. */
+ 			send_sig(SIGKILL, current, 0);
+ 			retval = -EINVAL;
+@@ -895,17 +1346,45 @@ static int load_elf_binary(struct linux_binprm *bprm)
+ 		goto out_free_dentry;
+ 	}
+ 	if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
+-		send_sig(SIGSEGV, current, 0);
+-		retval = -EFAULT; /* Nobody gets to see this, but.. */
+-		goto out_free_dentry;
++		/*
++		 * This bss-zeroing can fail if the ELF
++		 * file specifies odd protections. So
++		 * we don't check the return value
++		 */
+ 	}
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (current->mm->pax_flags & MF_PAX_RANDMMAP) {
++		unsigned long start, size, flags;
++		vm_flags_t vm_flags;
++
++		start = ELF_PAGEALIGN(elf_brk);
++		size = PAGE_SIZE + ((pax_get_random_long() & ((1UL << 22) - 1UL)) << 4);
++		flags = MAP_FIXED | MAP_PRIVATE;
++		vm_flags = VM_DONTEXPAND | VM_DONTDUMP;
++
++		down_write(&current->mm->mmap_sem);
++		start = get_unmapped_area(NULL, start, PAGE_ALIGN(size), 0, flags);
++		retval = -ENOMEM;
++		if (!IS_ERR_VALUE(start) && !find_vma_intersection(current->mm, start, start + size + PAGE_SIZE)) {
++//			if (current->personality & ADDR_NO_RANDOMIZE)
++//				vm_flags |= VM_READ | VM_MAYREAD;
++			start = mmap_region(NULL, start, PAGE_ALIGN(size), vm_flags, 0);
++			retval = IS_ERR_VALUE(start) ? start : 0;
++		}
++		up_write(&current->mm->mmap_sem);
++		if (retval == 0)
++			retval = set_brk(start + size, start + size + PAGE_SIZE);
++		if (retval < 0) {
++			send_sig(SIGKILL, current, 0);
++			goto out_free_dentry;
++		}
++	}
++#endif
++
+ 	if (elf_interpreter) {
+-		unsigned long interp_map_addr = 0;
+-
+ 		elf_entry = load_elf_interp(&loc->interp_elf_ex,
+ 					    interpreter,
+-					    &interp_map_addr,
+ 					    load_bias);
+ 		if (!IS_ERR((void *)elf_entry)) {
+ 			/*
+@@ -1127,7 +1606,7 @@ static bool always_dump_vma(struct vm_area_struct *vma)
+  * Decide what to dump of a segment, part, all or none.
+  */
+ static unsigned long vma_dump_size(struct vm_area_struct *vma,
+-				   unsigned long mm_flags)
++				   unsigned long mm_flags, long signr)
+ {
+ #define FILTER(type)	(mm_flags & (1UL << MMF_DUMP_##type))
+ 
+@@ -1165,7 +1644,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
+ 	if (vma->vm_file == NULL)
+ 		return 0;
+ 
+-	if (FILTER(MAPPED_PRIVATE))
++	if (signr == SIGKILL || FILTER(MAPPED_PRIVATE))
+ 		goto whole;
+ 
+ 	/*
+@@ -1372,9 +1851,9 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
+ {
+ 	elf_addr_t *auxv = (elf_addr_t *) mm->saved_auxv;
+ 	int i = 0;
+-	do
++	do {
+ 		i += 2;
+-	while (auxv[i - 2] != AT_NULL);
++	} while (auxv[i - 2] != AT_NULL);
+ 	fill_note(note, "CORE", NT_AUXV, i * sizeof(elf_addr_t), auxv);
+ }
+ 
+@@ -1383,7 +1862,7 @@ static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
+ {
+ 	mm_segment_t old_fs = get_fs();
+ 	set_fs(KERNEL_DS);
+-	copy_siginfo_to_user((user_siginfo_t __user *) csigdata, siginfo);
++	copy_siginfo_to_user((user_siginfo_t __force_user *) csigdata, siginfo);
+ 	set_fs(old_fs);
+ 	fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata);
+ }
+@@ -2007,14 +2486,14 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum,
+ }
+ 
+ static size_t elf_core_vma_data_size(struct vm_area_struct *gate_vma,
+-				     unsigned long mm_flags)
++				     struct coredump_params *cprm)
+ {
+ 	struct vm_area_struct *vma;
+ 	size_t size = 0;
+ 
+ 	for (vma = first_vma(current, gate_vma); vma != NULL;
+ 	     vma = next_vma(vma, gate_vma))
+-		size += vma_dump_size(vma, mm_flags);
++		size += vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
+ 	return size;
+ }
+ 
+@@ -2105,7 +2584,7 @@ static int elf_core_dump(struct coredump_params *cprm)
+ 
+ 	dataoff = offset = roundup(offset, ELF_EXEC_PAGESIZE);
+ 
+-	offset += elf_core_vma_data_size(gate_vma, cprm->mm_flags);
++	offset += elf_core_vma_data_size(gate_vma, cprm);
+ 	offset += elf_core_extra_data_size();
+ 	e_shoff = offset;
+ 
+@@ -2133,7 +2612,7 @@ static int elf_core_dump(struct coredump_params *cprm)
+ 		phdr.p_offset = offset;
+ 		phdr.p_vaddr = vma->vm_start;
+ 		phdr.p_paddr = 0;
+-		phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags);
++		phdr.p_filesz = vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
+ 		phdr.p_memsz = vma->vm_end - vma->vm_start;
+ 		offset += phdr.p_filesz;
+ 		phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
+@@ -2166,7 +2645,7 @@ static int elf_core_dump(struct coredump_params *cprm)
+ 		unsigned long addr;
+ 		unsigned long end;
+ 
+-		end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags);
++		end = vma->vm_start + vma_dump_size(vma, cprm->mm_flags, cprm->siginfo->si_signo);
+ 
+ 		for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) {
+ 			struct page *page;
+@@ -2207,6 +2686,167 @@ out:
+ 
+ #endif		/* CONFIG_ELF_CORE */
+ 
++#ifdef CONFIG_PAX_MPROTECT
++/* PaX: non-PIC ELF libraries need relocations on their executable segments
++ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly
++ * we'll remove VM_MAYWRITE for good on RELRO segments.
++ *
++ * The checks favour ld-linux.so behaviour which operates on a per ELF segment
++ * basis because we want to allow the common case and not the special ones.
++ */
++static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags)
++{
++	struct elfhdr elf_h;
++	struct elf_phdr elf_p;
++	unsigned long i;
++	unsigned long oldflags;
++	bool is_textrel_rw, is_textrel_rx, is_relro;
++
++	if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT) || !vma->vm_file)
++		return;
++
++	oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ);
++	newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ;
++
++#ifdef CONFIG_PAX_ELFRELOCS
++	/* possible TEXTREL */
++	is_textrel_rw = !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ);
++	is_textrel_rx = vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ);
++#else
++	is_textrel_rw = false;
++	is_textrel_rx = false;
++#endif
++
++	/* possible RELRO */
++	is_relro = vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ);
++
++	if (!is_textrel_rw && !is_textrel_rx && !is_relro)
++		return;
++
++	if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
++	    memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
++
++#ifdef CONFIG_PAX_ETEXECRELOCS
++	    ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
++#else
++	    ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) ||
++#endif
++
++	    (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) ||
++	    !elf_check_arch(&elf_h) ||
++	    elf_h.e_phentsize != sizeof(struct elf_phdr) ||
++	    elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
++		return;
++
++	for (i = 0UL; i < elf_h.e_phnum; i++) {
++		if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
++			return;
++		switch (elf_p.p_type) {
++		case PT_DYNAMIC:
++			if (!is_textrel_rw && !is_textrel_rx)
++				continue;
++			i = 0UL;
++			while ((i+1) * sizeof(elf_dyn) <= elf_p.p_filesz) {
++				elf_dyn dyn;
++
++				if (sizeof(dyn) != kernel_read(vma->vm_file, elf_p.p_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn)))
++					break;
++				if (dyn.d_tag == DT_NULL)
++					break;
++				if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) {
++					gr_log_textrel(vma);
++					if (is_textrel_rw)
++						vma->vm_flags |= VM_MAYWRITE;
++					else
++						/* PaX: disallow write access after relocs are done, hopefully noone else needs it... */
++						vma->vm_flags &= ~VM_MAYWRITE;
++					break;
++				}
++				i++;
++			}
++			is_textrel_rw = false;
++			is_textrel_rx = false;
++			continue;
++
++		case PT_GNU_RELRO:
++			if (!is_relro)
++				continue;
++			if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start)
++				vma->vm_flags &= ~VM_MAYWRITE;
++			is_relro = false;
++			continue;
++
++#ifdef CONFIG_PAX_PT_PAX_FLAGS
++		case PT_PAX_FLAGS: {
++			const char *msg_mprotect = "", *msg_emutramp = "";
++			char *buffer_lib, *buffer_exe;
++
++			if (elf_p.p_flags & PF_NOMPROTECT)
++				msg_mprotect = "MPROTECT disabled";
++
++#ifdef CONFIG_PAX_EMUTRAMP
++			if (!(vma->vm_mm->pax_flags & MF_PAX_EMUTRAMP) && !(elf_p.p_flags & PF_NOEMUTRAMP))
++				msg_emutramp = "EMUTRAMP enabled";
++#endif
++
++			if (!msg_mprotect[0] && !msg_emutramp[0])
++				continue;
++
++			if (!printk_ratelimit())
++				continue;
++
++			buffer_lib = (char *)__get_free_page(GFP_KERNEL);
++			buffer_exe = (char *)__get_free_page(GFP_KERNEL);
++			if (buffer_lib && buffer_exe) {
++				char *path_lib, *path_exe;
++
++				path_lib = pax_get_path(&vma->vm_file->f_path, buffer_lib, PAGE_SIZE);
++				path_exe = pax_get_path(&vma->vm_mm->exe_file->f_path, buffer_exe, PAGE_SIZE);
++
++				pr_info("PAX: %s wants %s%s%s on %s\n", path_lib, msg_mprotect,
++					(msg_mprotect[0] && msg_emutramp[0] ? " and " : ""), msg_emutramp, path_exe);
++
++			}
++			free_page((unsigned long)buffer_exe);
++			free_page((unsigned long)buffer_lib);
++			continue;
++		}
++#endif
++
++		}
++	}
++}
++#endif
++
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++
++extern int grsec_enable_log_rwxmaps;
++
++static void elf_handle_mmap(struct file *file)
++{
++	struct elfhdr elf_h;
++	struct elf_phdr elf_p;
++	unsigned long i;
++
++	if (!grsec_enable_log_rwxmaps)
++		return;
++
++	if (sizeof(elf_h) != kernel_read(file, 0UL, (char *)&elf_h, sizeof(elf_h)) ||
++	    memcmp(elf_h.e_ident, ELFMAG, SELFMAG) ||
++	    (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC) || !elf_check_arch(&elf_h) ||
++	    elf_h.e_phentsize != sizeof(struct elf_phdr) ||
++	    elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr))
++		return;
++
++	for (i = 0UL; i < elf_h.e_phnum; i++) {
++		if (sizeof(elf_p) != kernel_read(file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p)))
++			return;
++		if (elf_p.p_type == PT_GNU_STACK && (elf_p.p_flags & PF_X))
++			gr_log_ptgnustack(file);
++	}
++}
++#endif
++
+ static int __init init_elf_binfmt(void)
+ {
+ 	register_binfmt(&elf_format);
+diff --git a/fs/bio.c b/fs/bio.c
+index 8754e7b..0669094 100644
+--- a/fs/bio.c
++++ b/fs/bio.c
+@@ -1145,7 +1145,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
+ 		/*
+ 		 * Overflow, abort
+ 		 */
+-		if (end < start)
++		if (end < start || end - start > INT_MAX - nr_pages)
+ 			return ERR_PTR(-EINVAL);
+ 
+ 		nr_pages += end - start;
+@@ -1279,7 +1279,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
+ 		/*
+ 		 * Overflow, abort
+ 		 */
+-		if (end < start)
++		if (end < start || end - start > INT_MAX - nr_pages)
+ 			return ERR_PTR(-EINVAL);
+ 
+ 		nr_pages += end - start;
+@@ -1541,7 +1541,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err)
+ 	const int read = bio_data_dir(bio) == READ;
+ 	struct bio_map_data *bmd = bio->bi_private;
+ 	int i;
+-	char *p = bmd->sgvecs[0].iov_base;
++	char *p = (char __force_kernel *)bmd->sgvecs[0].iov_base;
+ 
+ 	bio_for_each_segment_all(bvec, bio, i) {
+ 		char *addr = page_address(bvec->bv_page);
+diff --git a/fs/block_dev.c b/fs/block_dev.c
+index 1e86823..8e34695 100644
+--- a/fs/block_dev.c
++++ b/fs/block_dev.c
+@@ -637,7 +637,7 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
+ 	else if (bdev->bd_contains == bdev)
+ 		return true;  	 /* is a whole device which isn't held */
+ 
+-	else if (whole->bd_holder == bd_may_claim)
++	else if (whole->bd_holder == (void *)bd_may_claim)
+ 		return true; 	 /* is a partition of a device that is being partitioned */
+ 	else if (whole->bd_holder != NULL)
+ 		return false;	 /* is a partition of a held device */
+diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
+index 93de3ba..0e1cf23 100644
+--- a/fs/btrfs/ctree.c
++++ b/fs/btrfs/ctree.c
+@@ -1216,9 +1216,12 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
+ 		free_extent_buffer(buf);
+ 		add_root_to_dirty_list(root);
+ 	} else {
+-		if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
+-			parent_start = parent->start;
+-		else
++		if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
++			if (parent)
++				parent_start = parent->start;
++			else
++				parent_start = 0;
++		} else
+ 			parent_start = 0;
+ 
+ 		WARN_ON(trans->transid != btrfs_header_generation(parent));
+diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
+index 12e3556..eea9bcf 100644
+--- a/fs/btrfs/delayed-inode.c
++++ b/fs/btrfs/delayed-inode.c
+@@ -459,7 +459,7 @@ static int __btrfs_add_delayed_deletion_item(struct btrfs_delayed_node *node,
+ 
+ static void finish_one_item(struct btrfs_delayed_root *delayed_root)
+ {
+-	int seq = atomic_inc_return(&delayed_root->items_seq);
++	int seq = atomic_inc_return_unchecked(&delayed_root->items_seq);
+ 	if ((atomic_dec_return(&delayed_root->items) <
+ 	    BTRFS_DELAYED_BACKGROUND || seq % BTRFS_DELAYED_BATCH == 0) &&
+ 	    waitqueue_active(&delayed_root->wait))
+@@ -1409,7 +1409,7 @@ void btrfs_assert_delayed_root_empty(struct btrfs_root *root)
+ 
+ static int could_end_wait(struct btrfs_delayed_root *delayed_root, int seq)
+ {
+-	int val = atomic_read(&delayed_root->items_seq);
++	int val = atomic_read_unchecked(&delayed_root->items_seq);
+ 
+ 	if (val < seq || val >= seq + BTRFS_DELAYED_BATCH)
+ 		return 1;
+@@ -1433,7 +1433,7 @@ void btrfs_balance_delayed_items(struct btrfs_root *root)
+ 		int seq;
+ 		int ret;
+ 
+-		seq = atomic_read(&delayed_root->items_seq);
++		seq = atomic_read_unchecked(&delayed_root->items_seq);
+ 
+ 		ret = btrfs_wq_run_delayed_node(delayed_root, root, 0);
+ 		if (ret)
+diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
+index f70119f..ab5894d 100644
+--- a/fs/btrfs/delayed-inode.h
++++ b/fs/btrfs/delayed-inode.h
+@@ -43,7 +43,7 @@ struct btrfs_delayed_root {
+ 	 */
+ 	struct list_head prepare_list;
+ 	atomic_t items;		/* for delayed items */
+-	atomic_t items_seq;	/* for delayed items */
++	atomic_unchecked_t items_seq;	/* for delayed items */
+ 	int nodes;		/* for delayed nodes */
+ 	wait_queue_head_t wait;
+ };
+@@ -90,7 +90,7 @@ static inline void btrfs_init_delayed_root(
+ 				struct btrfs_delayed_root *delayed_root)
+ {
+ 	atomic_set(&delayed_root->items, 0);
+-	atomic_set(&delayed_root->items_seq, 0);
++	atomic_set_unchecked(&delayed_root->items_seq, 0);
+ 	delayed_root->nodes = 0;
+ 	spin_lock_init(&delayed_root->lock);
+ 	init_waitqueue_head(&delayed_root->wait);
+diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
+index 92cbfbf..0ca1d83 100644
+--- a/fs/btrfs/super.c
++++ b/fs/btrfs/super.c
+@@ -268,7 +268,7 @@ void __btrfs_abort_transaction(struct btrfs_trans_handle *trans,
+ 		           function, line, errstr);
+ 		return;
+ 	}
+-	ACCESS_ONCE(trans->transaction->aborted) = errno;
++	ACCESS_ONCE_RW(trans->transaction->aborted) = errno;
+ 	/* Wake up anybody who may be waiting on this transaction */
+ 	wake_up(&root->fs_info->transaction_wait);
+ 	wake_up(&root->fs_info->transaction_blocked_wait);
+diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
+index ff286f3..8153a14 100644
+--- a/fs/btrfs/sysfs.c
++++ b/fs/btrfs/sysfs.c
+@@ -437,7 +437,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)
+ 	for (set = 0; set < FEAT_MAX; set++) {
+ 		int i;
+ 		struct attribute *attrs[2];
+-		struct attribute_group agroup = {
++		attribute_group_no_const agroup = {
+ 			.name = "features",
+ 			.attrs = attrs,
+ 		};
+diff --git a/fs/buffer.c b/fs/buffer.c
+index eef21c6..10a8304 100644
+--- a/fs/buffer.c
++++ b/fs/buffer.c
+@@ -3450,7 +3450,7 @@ void __init buffer_init(void)
+ 	bh_cachep = kmem_cache_create("buffer_head",
+ 			sizeof(struct buffer_head), 0,
+ 				(SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
+-				SLAB_MEM_SPREAD),
++				SLAB_MEM_SPREAD|SLAB_NO_SANITIZE),
+ 				NULL);
+ 
+ 	/*
+diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
+index 622f469..e8d2d55 100644
+--- a/fs/cachefiles/bind.c
++++ b/fs/cachefiles/bind.c
+@@ -39,13 +39,11 @@ int cachefiles_daemon_bind(struct cachefiles_cache *cache, char *args)
+ 	       args);
+ 
+ 	/* start by checking things over */
+-	ASSERT(cache->fstop_percent >= 0 &&
+-	       cache->fstop_percent < cache->fcull_percent &&
++	ASSERT(cache->fstop_percent < cache->fcull_percent &&
+ 	       cache->fcull_percent < cache->frun_percent &&
+ 	       cache->frun_percent  < 100);
+ 
+-	ASSERT(cache->bstop_percent >= 0 &&
+-	       cache->bstop_percent < cache->bcull_percent &&
++	ASSERT(cache->bstop_percent < cache->bcull_percent &&
+ 	       cache->bcull_percent < cache->brun_percent &&
+ 	       cache->brun_percent  < 100);
+ 
+diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
+index 0a1467b..6a53245 100644
+--- a/fs/cachefiles/daemon.c
++++ b/fs/cachefiles/daemon.c
+@@ -196,7 +196,7 @@ static ssize_t cachefiles_daemon_read(struct file *file, char __user *_buffer,
+ 	if (n > buflen)
+ 		return -EMSGSIZE;
+ 
+-	if (copy_to_user(_buffer, buffer, n) != 0)
++	if (n > sizeof(buffer) || copy_to_user(_buffer, buffer, n) != 0)
+ 		return -EFAULT;
+ 
+ 	return n;
+@@ -222,7 +222,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
+ 	if (test_bit(CACHEFILES_DEAD, &cache->flags))
+ 		return -EIO;
+ 
+-	if (datalen < 0 || datalen > PAGE_SIZE - 1)
++	if (datalen > PAGE_SIZE - 1)
+ 		return -EOPNOTSUPP;
+ 
+ 	/* drag the command string into the kernel so we can parse it */
+@@ -386,7 +386,7 @@ static int cachefiles_daemon_fstop(struct cachefiles_cache *cache, char *args)
+ 	if (args[0] != '%' || args[1] != '\0')
+ 		return -EINVAL;
+ 
+-	if (fstop < 0 || fstop >= cache->fcull_percent)
++	if (fstop >= cache->fcull_percent)
+ 		return cachefiles_daemon_range_error(cache, args);
+ 
+ 	cache->fstop_percent = fstop;
+@@ -458,7 +458,7 @@ static int cachefiles_daemon_bstop(struct cachefiles_cache *cache, char *args)
+ 	if (args[0] != '%' || args[1] != '\0')
+ 		return -EINVAL;
+ 
+-	if (bstop < 0 || bstop >= cache->bcull_percent)
++	if (bstop >= cache->bcull_percent)
+ 		return cachefiles_daemon_range_error(cache, args);
+ 
+ 	cache->bstop_percent = bstop;
+diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
+index 5349473..d6c0b93 100644
+--- a/fs/cachefiles/internal.h
++++ b/fs/cachefiles/internal.h
+@@ -59,7 +59,7 @@ struct cachefiles_cache {
+ 	wait_queue_head_t		daemon_pollwq;	/* poll waitqueue for daemon */
+ 	struct rb_root			active_nodes;	/* active nodes (can't be culled) */
+ 	rwlock_t			active_lock;	/* lock for active_nodes */
+-	atomic_t			gravecounter;	/* graveyard uniquifier */
++	atomic_unchecked_t		gravecounter;	/* graveyard uniquifier */
+ 	unsigned			frun_percent;	/* when to stop culling (% files) */
+ 	unsigned			fcull_percent;	/* when to start culling (% files) */
+ 	unsigned			fstop_percent;	/* when to stop allocating (% files) */
+@@ -171,19 +171,19 @@ extern int cachefiles_check_in_use(struct cachefiles_cache *cache,
+  * proc.c
+  */
+ #ifdef CONFIG_CACHEFILES_HISTOGRAM
+-extern atomic_t cachefiles_lookup_histogram[HZ];
+-extern atomic_t cachefiles_mkdir_histogram[HZ];
+-extern atomic_t cachefiles_create_histogram[HZ];
++extern atomic_unchecked_t cachefiles_lookup_histogram[HZ];
++extern atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
++extern atomic_unchecked_t cachefiles_create_histogram[HZ];
+ 
+ extern int __init cachefiles_proc_init(void);
+ extern void cachefiles_proc_cleanup(void);
+ static inline
+-void cachefiles_hist(atomic_t histogram[], unsigned long start_jif)
++void cachefiles_hist(atomic_unchecked_t histogram[], unsigned long start_jif)
+ {
+ 	unsigned long jif = jiffies - start_jif;
+ 	if (jif >= HZ)
+ 		jif = HZ - 1;
+-	atomic_inc(&histogram[jif]);
++	atomic_inc_unchecked(&histogram[jif]);
+ }
+ 
+ #else
+diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
+index ca65f39..48921e3 100644
+--- a/fs/cachefiles/namei.c
++++ b/fs/cachefiles/namei.c
+@@ -317,7 +317,7 @@ try_again:
+ 	/* first step is to make up a grave dentry in the graveyard */
+ 	sprintf(nbuffer, "%08x%08x",
+ 		(uint32_t) get_seconds(),
+-		(uint32_t) atomic_inc_return(&cache->gravecounter));
++		(uint32_t) atomic_inc_return_unchecked(&cache->gravecounter));
+ 
+ 	/* do the multiway lock magic */
+ 	trap = lock_rename(cache->graveyard, dir);
+diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c
+index eccd339..4c1d995 100644
+--- a/fs/cachefiles/proc.c
++++ b/fs/cachefiles/proc.c
+@@ -14,9 +14,9 @@
+ #include <linux/seq_file.h>
+ #include "internal.h"
+ 
+-atomic_t cachefiles_lookup_histogram[HZ];
+-atomic_t cachefiles_mkdir_histogram[HZ];
+-atomic_t cachefiles_create_histogram[HZ];
++atomic_unchecked_t cachefiles_lookup_histogram[HZ];
++atomic_unchecked_t cachefiles_mkdir_histogram[HZ];
++atomic_unchecked_t cachefiles_create_histogram[HZ];
+ 
+ /*
+  * display the latency histogram
+@@ -35,9 +35,9 @@ static int cachefiles_histogram_show(struct seq_file *m, void *v)
+ 		return 0;
+ 	default:
+ 		index = (unsigned long) v - 3;
+-		x = atomic_read(&cachefiles_lookup_histogram[index]);
+-		y = atomic_read(&cachefiles_mkdir_histogram[index]);
+-		z = atomic_read(&cachefiles_create_histogram[index]);
++		x = atomic_read_unchecked(&cachefiles_lookup_histogram[index]);
++		y = atomic_read_unchecked(&cachefiles_mkdir_histogram[index]);
++		z = atomic_read_unchecked(&cachefiles_create_histogram[index]);
+ 		if (x == 0 && y == 0 && z == 0)
+ 			return 0;
+ 
+diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
+index ebaff36..7e3ea26 100644
+--- a/fs/cachefiles/rdwr.c
++++ b/fs/cachefiles/rdwr.c
+@@ -950,7 +950,7 @@ int cachefiles_write_page(struct fscache_storage *op, struct page *page)
+ 			old_fs = get_fs();
+ 			set_fs(KERNEL_DS);
+ 			ret = file->f_op->write(
+-				file, (const void __user *) data, len, &pos);
++				file, (const void __force_user *) data, len, &pos);
+ 			set_fs(old_fs);
+ 			kunmap(page);
+ 			file_end_write(file);
+diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
+index 18e14cf..9ca3e26 100644
+--- a/fs/ceph/dir.c
++++ b/fs/ceph/dir.c
+@@ -128,6 +128,8 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx)
+ 	struct dentry *dentry, *last;
+ 	struct ceph_dentry_info *di;
+ 	int err = 0;
++	char d_name[DNAME_INLINE_LEN];
++	const unsigned char *name;
+ 
+ 	/* claim ref on last dentry we returned */
+ 	last = fi->dentry;
+@@ -183,7 +185,12 @@ more:
+ 	dout(" %llu (%llu) dentry %p %.*s %p\n", di->offset, ctx->pos,
+ 	     dentry, dentry->d_name.len, dentry->d_name.name, dentry->d_inode);
+ 	ctx->pos = di->offset;
+-	if (!dir_emit(ctx, dentry->d_name.name,
++	name = dentry->d_name.name;
++	if (name == dentry->d_iname) {
++		memcpy(d_name, name, dentry->d_name.len);
++		name = d_name;
++	}
++	if (!dir_emit(ctx, name,
+ 		      dentry->d_name.len,
+ 		      ceph_translate_ino(dentry->d_sb, dentry->d_inode->i_ino),
+ 		      dentry->d_inode->i_mode >> 12)) {
+@@ -248,7 +255,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx)
+ 	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
+ 	struct ceph_mds_client *mdsc = fsc->mdsc;
+ 	unsigned frag = fpos_frag(ctx->pos);
+-	int off = fpos_off(ctx->pos);
++	unsigned int off = fpos_off(ctx->pos);
+ 	int err;
+ 	u32 ftype;
+ 	struct ceph_mds_reply_info_parsed *rinfo;
+diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
+index dc66c9e..5fa0c34 100644
+--- a/fs/ceph/ioctl.c
++++ b/fs/ceph/ioctl.c
+@@ -42,7 +42,7 @@ static long __validate_layout(struct ceph_mds_client *mdsc,
+ 	/* validate striping parameters */
+ 	if ((l->object_size & ~PAGE_MASK) ||
+ 	    (l->stripe_unit & ~PAGE_MASK) ||
+-	    (l->stripe_unit != 0 &&
++	    ((unsigned)l->stripe_unit != 0 &&
+ 	     ((unsigned)l->object_size % (unsigned)l->stripe_unit)))
+ 		return -EINVAL;
+ 
+diff --git a/fs/ceph/super.c b/fs/ceph/super.c
+index 10a4ccb..92dbc5e 100644
+--- a/fs/ceph/super.c
++++ b/fs/ceph/super.c
+@@ -895,7 +895,7 @@ static int ceph_compare_super(struct super_block *sb, void *data)
+ /*
+  * construct our own bdi so we can control readahead, etc.
+  */
+-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
++static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
+ 
+ static int ceph_register_bdi(struct super_block *sb,
+ 			     struct ceph_fs_client *fsc)
+@@ -912,7 +912,7 @@ static int ceph_register_bdi(struct super_block *sb,
+ 			default_backing_dev_info.ra_pages;
+ 
+ 	err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld",
+-			   atomic_long_inc_return(&bdi_seq));
++			   atomic_long_inc_return_unchecked(&bdi_seq));
+ 	if (!err)
+ 		sb->s_bdi = &fsc->backing_dev_info;
+ 	return err;
+diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
+index f3ac415..e26bd76 100644
+--- a/fs/cifs/cifs_debug.c
++++ b/fs/cifs/cifs_debug.c
+@@ -286,8 +286,8 @@ static ssize_t cifs_stats_proc_write(struct file *file,
+ 
+ 	if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
+ #ifdef CONFIG_CIFS_STATS2
+-		atomic_set(&totBufAllocCount, 0);
+-		atomic_set(&totSmBufAllocCount, 0);
++		atomic_set_unchecked(&totBufAllocCount, 0);
++		atomic_set_unchecked(&totSmBufAllocCount, 0);
+ #endif /* CONFIG_CIFS_STATS2 */
+ 		spin_lock(&cifs_tcp_ses_lock);
+ 		list_for_each(tmp1, &cifs_tcp_ses_list) {
+@@ -300,7 +300,7 @@ static ssize_t cifs_stats_proc_write(struct file *file,
+ 					tcon = list_entry(tmp3,
+ 							  struct cifs_tcon,
+ 							  tcon_list);
+-					atomic_set(&tcon->num_smbs_sent, 0);
++					atomic_set_unchecked(&tcon->num_smbs_sent, 0);
+ 					if (server->ops->clear_stats)
+ 						server->ops->clear_stats(tcon);
+ 				}
+@@ -332,8 +332,8 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
+ 			smBufAllocCount.counter, cifs_min_small);
+ #ifdef CONFIG_CIFS_STATS2
+ 	seq_printf(m, "Total Large %d Small %d Allocations\n",
+-				atomic_read(&totBufAllocCount),
+-				atomic_read(&totSmBufAllocCount));
++				atomic_read_unchecked(&totBufAllocCount),
++				atomic_read_unchecked(&totSmBufAllocCount));
+ #endif /* CONFIG_CIFS_STATS2 */
+ 
+ 	seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
+@@ -362,7 +362,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v)
+ 				if (tcon->need_reconnect)
+ 					seq_puts(m, "\tDISCONNECTED ");
+ 				seq_printf(m, "\nSMBs: %d",
+-					   atomic_read(&tcon->num_smbs_sent));
++					   atomic_read_unchecked(&tcon->num_smbs_sent));
+ 				if (server->ops->print_stats)
+ 					server->ops->print_stats(m, tcon);
+ 			}
+@@ -615,9 +615,11 @@ cifs_security_flags_handle_must_flags(unsigned int *flags)
+ 		*flags = CIFSSEC_MUST_NTLMV2;
+ 	else if ((*flags & CIFSSEC_MUST_NTLM) == CIFSSEC_MUST_NTLM)
+ 		*flags = CIFSSEC_MUST_NTLM;
+-	else if ((*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN)
++	else if (CIFSSEC_MUST_LANMAN &&
++		 (*flags & CIFSSEC_MUST_LANMAN) == CIFSSEC_MUST_LANMAN)
+ 		*flags = CIFSSEC_MUST_LANMAN;
+-	else if ((*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT)
++	else if (CIFSSEC_MUST_PLNTXT &&
++		 (*flags & CIFSSEC_MUST_PLNTXT) == CIFSSEC_MUST_PLNTXT)
+ 		*flags = CIFSSEC_MUST_PLNTXT;
+ 
+ 	*flags |= signflags;
+diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
+index 7c6b73c..a8f0db2 100644
+--- a/fs/cifs/cifsfs.c
++++ b/fs/cifs/cifsfs.c
+@@ -1068,7 +1068,7 @@ cifs_init_request_bufs(void)
+ */
+ 	cifs_req_cachep = kmem_cache_create("cifs_request",
+ 					    CIFSMaxBufSize + max_hdr_size, 0,
+-					    SLAB_HWCACHE_ALIGN, NULL);
++					    SLAB_HWCACHE_ALIGN | SLAB_USERCOPY, NULL);
+ 	if (cifs_req_cachep == NULL)
+ 		return -ENOMEM;
+ 
+@@ -1095,7 +1095,7 @@ cifs_init_request_bufs(void)
+ 	efficient to alloc 1 per page off the slab compared to 17K (5page)
+ 	alloc of large cifs buffers even when page debugging is on */
+ 	cifs_sm_req_cachep = kmem_cache_create("cifs_small_rq",
+-			MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN,
++			MAX_CIFS_SMALL_BUFFER_SIZE, 0, SLAB_HWCACHE_ALIGN | SLAB_USERCOPY,
+ 			NULL);
+ 	if (cifs_sm_req_cachep == NULL) {
+ 		mempool_destroy(cifs_req_poolp);
+@@ -1180,8 +1180,8 @@ init_cifs(void)
+ 	atomic_set(&bufAllocCount, 0);
+ 	atomic_set(&smBufAllocCount, 0);
+ #ifdef CONFIG_CIFS_STATS2
+-	atomic_set(&totBufAllocCount, 0);
+-	atomic_set(&totSmBufAllocCount, 0);
++	atomic_set_unchecked(&totBufAllocCount, 0);
++	atomic_set_unchecked(&totSmBufAllocCount, 0);
+ #endif /* CONFIG_CIFS_STATS2 */
+ 
+ 	atomic_set(&midCount, 0);
+diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
+index 5d12d69..161d0ce 100644
+--- a/fs/cifs/cifsglob.h
++++ b/fs/cifs/cifsglob.h
+@@ -803,35 +803,35 @@ struct cifs_tcon {
+ 	__u16 Flags;		/* optional support bits */
+ 	enum statusEnum tidStatus;
+ #ifdef CONFIG_CIFS_STATS
+-	atomic_t num_smbs_sent;
++	atomic_unchecked_t num_smbs_sent;
+ 	union {
+ 		struct {
+-			atomic_t num_writes;
+-			atomic_t num_reads;
+-			atomic_t num_flushes;
+-			atomic_t num_oplock_brks;
+-			atomic_t num_opens;
+-			atomic_t num_closes;
+-			atomic_t num_deletes;
+-			atomic_t num_mkdirs;
+-			atomic_t num_posixopens;
+-			atomic_t num_posixmkdirs;
+-			atomic_t num_rmdirs;
+-			atomic_t num_renames;
+-			atomic_t num_t2renames;
+-			atomic_t num_ffirst;
+-			atomic_t num_fnext;
+-			atomic_t num_fclose;
+-			atomic_t num_hardlinks;
+-			atomic_t num_symlinks;
+-			atomic_t num_locks;
+-			atomic_t num_acl_get;
+-			atomic_t num_acl_set;
++			atomic_unchecked_t num_writes;
++			atomic_unchecked_t num_reads;
++			atomic_unchecked_t num_flushes;
++			atomic_unchecked_t num_oplock_brks;
++			atomic_unchecked_t num_opens;
++			atomic_unchecked_t num_closes;
++			atomic_unchecked_t num_deletes;
++			atomic_unchecked_t num_mkdirs;
++			atomic_unchecked_t num_posixopens;
++			atomic_unchecked_t num_posixmkdirs;
++			atomic_unchecked_t num_rmdirs;
++			atomic_unchecked_t num_renames;
++			atomic_unchecked_t num_t2renames;
++			atomic_unchecked_t num_ffirst;
++			atomic_unchecked_t num_fnext;
++			atomic_unchecked_t num_fclose;
++			atomic_unchecked_t num_hardlinks;
++			atomic_unchecked_t num_symlinks;
++			atomic_unchecked_t num_locks;
++			atomic_unchecked_t num_acl_get;
++			atomic_unchecked_t num_acl_set;
+ 		} cifs_stats;
+ #ifdef CONFIG_CIFS_SMB2
+ 		struct {
+-			atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
+-			atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
++			atomic_unchecked_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS];
++			atomic_unchecked_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS];
+ 		} smb2_stats;
+ #endif /* CONFIG_CIFS_SMB2 */
+ 	} stats;
+@@ -1167,7 +1167,7 @@ convert_delimiter(char *path, char delim)
+ }
+ 
+ #ifdef CONFIG_CIFS_STATS
+-#define cifs_stats_inc atomic_inc
++#define cifs_stats_inc atomic_inc_unchecked
+ 
+ static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon,
+ 					    unsigned int bytes)
+@@ -1533,8 +1533,8 @@ GLOBAL_EXTERN atomic_t tconInfoReconnectCount;
+ /* Various Debug counters */
+ GLOBAL_EXTERN atomic_t bufAllocCount;    /* current number allocated  */
+ #ifdef CONFIG_CIFS_STATS2
+-GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */
+-GLOBAL_EXTERN atomic_t totSmBufAllocCount;
++GLOBAL_EXTERN atomic_unchecked_t totBufAllocCount; /* total allocated over all time */
++GLOBAL_EXTERN atomic_unchecked_t totSmBufAllocCount;
+ #endif
+ GLOBAL_EXTERN atomic_t smBufAllocCount;
+ GLOBAL_EXTERN atomic_t midCount;
+diff --git a/fs/cifs/file.c b/fs/cifs/file.c
+index 40ddb6e..8f3e755 100644
+--- a/fs/cifs/file.c
++++ b/fs/cifs/file.c
+@@ -1905,10 +1905,14 @@ static int cifs_writepages(struct address_space *mapping,
+ 		index = mapping->writeback_index; /* Start from prev offset */
+ 		end = -1;
+ 	} else {
+-		index = wbc->range_start >> PAGE_CACHE_SHIFT;
+-		end = wbc->range_end >> PAGE_CACHE_SHIFT;
+-		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
++		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
+ 			range_whole = true;
++			index = 0;
++			end = ULONG_MAX;
++		} else {
++			index = wbc->range_start >> PAGE_CACHE_SHIFT;
++			end = wbc->range_end >> PAGE_CACHE_SHIFT;
++		}
+ 		scanned = true;
+ 	}
+ retry:
+diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
+index 3b0c62e..f7d090c 100644
+--- a/fs/cifs/misc.c
++++ b/fs/cifs/misc.c
+@@ -170,7 +170,7 @@ cifs_buf_get(void)
+ 		memset(ret_buf, 0, buf_size + 3);
+ 		atomic_inc(&bufAllocCount);
+ #ifdef CONFIG_CIFS_STATS2
+-		atomic_inc(&totBufAllocCount);
++		atomic_inc_unchecked(&totBufAllocCount);
+ #endif /* CONFIG_CIFS_STATS2 */
+ 	}
+ 
+@@ -205,7 +205,7 @@ cifs_small_buf_get(void)
+ 	/*	memset(ret_buf, 0, sizeof(struct smb_hdr) + 27);*/
+ 		atomic_inc(&smBufAllocCount);
+ #ifdef CONFIG_CIFS_STATS2
+-		atomic_inc(&totSmBufAllocCount);
++		atomic_inc_unchecked(&totSmBufAllocCount);
+ #endif /* CONFIG_CIFS_STATS2 */
+ 
+ 	}
+diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
+index e9ad8d3..6395e45 100644
+--- a/fs/cifs/smb1ops.c
++++ b/fs/cifs/smb1ops.c
+@@ -626,27 +626,27 @@ static void
+ cifs_clear_stats(struct cifs_tcon *tcon)
+ {
+ #ifdef CONFIG_CIFS_STATS
+-	atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
+-	atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_writes, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_reads, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_flushes, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_oplock_brks, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_opens, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixopens, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_closes, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_deletes, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_mkdirs, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_rmdirs, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_renames, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_t2renames, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_ffirst, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_fnext, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_fclose, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_hardlinks, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_symlinks, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_locks, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_get, 0);
++	atomic_set_unchecked(&tcon->stats.cifs_stats.num_acl_set, 0);
+ #endif
+ }
+ 
+@@ -655,36 +655,36 @@ cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
+ {
+ #ifdef CONFIG_CIFS_STATS
+ 	seq_printf(m, " Oplocks breaks: %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_oplock_brks));
+ 	seq_printf(m, "\nReads:  %d Bytes: %llu",
+-		   atomic_read(&tcon->stats.cifs_stats.num_reads),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_reads),
+ 		   (long long)(tcon->bytes_read));
+ 	seq_printf(m, "\nWrites: %d Bytes: %llu",
+-		   atomic_read(&tcon->stats.cifs_stats.num_writes),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_writes),
+ 		   (long long)(tcon->bytes_written));
+ 	seq_printf(m, "\nFlushes: %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_flushes));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_flushes));
+ 	seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_locks),
+-		   atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
+-		   atomic_read(&tcon->stats.cifs_stats.num_symlinks));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_locks),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_hardlinks),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_symlinks));
+ 	seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_opens),
+-		   atomic_read(&tcon->stats.cifs_stats.num_closes),
+-		   atomic_read(&tcon->stats.cifs_stats.num_deletes));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_opens),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_closes),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_deletes));
+ 	seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_posixopens),
+-		   atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixopens),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_posixmkdirs));
+ 	seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
+-		   atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_mkdirs),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_rmdirs));
+ 	seq_printf(m, "\nRenames: %d T2 Renames %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_renames),
+-		   atomic_read(&tcon->stats.cifs_stats.num_t2renames));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_renames),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_t2renames));
+ 	seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
+-		   atomic_read(&tcon->stats.cifs_stats.num_ffirst),
+-		   atomic_read(&tcon->stats.cifs_stats.num_fnext),
+-		   atomic_read(&tcon->stats.cifs_stats.num_fclose));
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_ffirst),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_fnext),
++		   atomic_read_unchecked(&tcon->stats.cifs_stats.num_fclose));
+ #endif
+ }
+ 
+diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
+index 30f3eb5..a01371c 100644
+--- a/fs/cifs/smb2ops.c
++++ b/fs/cifs/smb2ops.c
+@@ -364,8 +364,8 @@ smb2_clear_stats(struct cifs_tcon *tcon)
+ #ifdef CONFIG_CIFS_STATS
+ 	int i;
+ 	for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
+-		atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
+-		atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
++		atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
++		atomic_set_unchecked(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
+ 	}
+ #endif
+ }
+@@ -405,65 +405,65 @@ static void
+ smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
+ {
+ #ifdef CONFIG_CIFS_STATS
+-	atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
+-	atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
++	atomic_unchecked_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
++	atomic_unchecked_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
+ 	seq_printf(m, "\nNegotiates: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_NEGOTIATE_HE]),
+-		   atomic_read(&failed[SMB2_NEGOTIATE_HE]));
++		   atomic_read_unchecked(&sent[SMB2_NEGOTIATE_HE]),
++		   atomic_read_unchecked(&failed[SMB2_NEGOTIATE_HE]));
+ 	seq_printf(m, "\nSessionSetups: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
+-		   atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
++		   atomic_read_unchecked(&sent[SMB2_SESSION_SETUP_HE]),
++		   atomic_read_unchecked(&failed[SMB2_SESSION_SETUP_HE]));
+ 	seq_printf(m, "\nLogoffs: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_LOGOFF_HE]),
+-		   atomic_read(&failed[SMB2_LOGOFF_HE]));
++		   atomic_read_unchecked(&sent[SMB2_LOGOFF_HE]),
++		   atomic_read_unchecked(&failed[SMB2_LOGOFF_HE]));
+ 	seq_printf(m, "\nTreeConnects: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
+-		   atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
++		   atomic_read_unchecked(&sent[SMB2_TREE_CONNECT_HE]),
++		   atomic_read_unchecked(&failed[SMB2_TREE_CONNECT_HE]));
+ 	seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
+-		   atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
++		   atomic_read_unchecked(&sent[SMB2_TREE_DISCONNECT_HE]),
++		   atomic_read_unchecked(&failed[SMB2_TREE_DISCONNECT_HE]));
+ 	seq_printf(m, "\nCreates: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_CREATE_HE]),
+-		   atomic_read(&failed[SMB2_CREATE_HE]));
++		   atomic_read_unchecked(&sent[SMB2_CREATE_HE]),
++		   atomic_read_unchecked(&failed[SMB2_CREATE_HE]));
+ 	seq_printf(m, "\nCloses: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_CLOSE_HE]),
+-		   atomic_read(&failed[SMB2_CLOSE_HE]));
++		   atomic_read_unchecked(&sent[SMB2_CLOSE_HE]),
++		   atomic_read_unchecked(&failed[SMB2_CLOSE_HE]));
+ 	seq_printf(m, "\nFlushes: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_FLUSH_HE]),
+-		   atomic_read(&failed[SMB2_FLUSH_HE]));
++		   atomic_read_unchecked(&sent[SMB2_FLUSH_HE]),
++		   atomic_read_unchecked(&failed[SMB2_FLUSH_HE]));
+ 	seq_printf(m, "\nReads: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_READ_HE]),
+-		   atomic_read(&failed[SMB2_READ_HE]));
++		   atomic_read_unchecked(&sent[SMB2_READ_HE]),
++		   atomic_read_unchecked(&failed[SMB2_READ_HE]));
+ 	seq_printf(m, "\nWrites: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_WRITE_HE]),
+-		   atomic_read(&failed[SMB2_WRITE_HE]));
++		   atomic_read_unchecked(&sent[SMB2_WRITE_HE]),
++		   atomic_read_unchecked(&failed[SMB2_WRITE_HE]));
+ 	seq_printf(m, "\nLocks: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_LOCK_HE]),
+-		   atomic_read(&failed[SMB2_LOCK_HE]));
++		   atomic_read_unchecked(&sent[SMB2_LOCK_HE]),
++		   atomic_read_unchecked(&failed[SMB2_LOCK_HE]));
+ 	seq_printf(m, "\nIOCTLs: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_IOCTL_HE]),
+-		   atomic_read(&failed[SMB2_IOCTL_HE]));
++		   atomic_read_unchecked(&sent[SMB2_IOCTL_HE]),
++		   atomic_read_unchecked(&failed[SMB2_IOCTL_HE]));
+ 	seq_printf(m, "\nCancels: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_CANCEL_HE]),
+-		   atomic_read(&failed[SMB2_CANCEL_HE]));
++		   atomic_read_unchecked(&sent[SMB2_CANCEL_HE]),
++		   atomic_read_unchecked(&failed[SMB2_CANCEL_HE]));
+ 	seq_printf(m, "\nEchos: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_ECHO_HE]),
+-		   atomic_read(&failed[SMB2_ECHO_HE]));
++		   atomic_read_unchecked(&sent[SMB2_ECHO_HE]),
++		   atomic_read_unchecked(&failed[SMB2_ECHO_HE]));
+ 	seq_printf(m, "\nQueryDirectories: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
+-		   atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
++		   atomic_read_unchecked(&sent[SMB2_QUERY_DIRECTORY_HE]),
++		   atomic_read_unchecked(&failed[SMB2_QUERY_DIRECTORY_HE]));
+ 	seq_printf(m, "\nChangeNotifies: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
+-		   atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
++		   atomic_read_unchecked(&sent[SMB2_CHANGE_NOTIFY_HE]),
++		   atomic_read_unchecked(&failed[SMB2_CHANGE_NOTIFY_HE]));
+ 	seq_printf(m, "\nQueryInfos: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_QUERY_INFO_HE]),
+-		   atomic_read(&failed[SMB2_QUERY_INFO_HE]));
++		   atomic_read_unchecked(&sent[SMB2_QUERY_INFO_HE]),
++		   atomic_read_unchecked(&failed[SMB2_QUERY_INFO_HE]));
+ 	seq_printf(m, "\nSetInfos: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_SET_INFO_HE]),
+-		   atomic_read(&failed[SMB2_SET_INFO_HE]));
++		   atomic_read_unchecked(&sent[SMB2_SET_INFO_HE]),
++		   atomic_read_unchecked(&failed[SMB2_SET_INFO_HE]));
+ 	seq_printf(m, "\nOplockBreaks: %d sent %d failed",
+-		   atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
+-		   atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
++		   atomic_read_unchecked(&sent[SMB2_OPLOCK_BREAK_HE]),
++		   atomic_read_unchecked(&failed[SMB2_OPLOCK_BREAK_HE]));
+ #endif
+ }
+ 
+diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
+index 3487929..47a6ebf2 100644
+--- a/fs/cifs/smb2pdu.c
++++ b/fs/cifs/smb2pdu.c
+@@ -2100,8 +2100,7 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
+ 	default:
+ 		cifs_dbg(VFS, "info level %u isn't supported\n",
+ 			 srch_inf->info_level);
+-		rc = -EINVAL;
+-		goto qdir_exit;
++		return -EINVAL;
+ 	}
+ 
+ 	req->FileIndex = cpu_to_le32(index);
+diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
+index 43eb136..f17e718 100644
+--- a/fs/cifs/smbencrypt.c
++++ b/fs/cifs/smbencrypt.c
+@@ -220,7 +220,7 @@ E_md4hash(const unsigned char *passwd, unsigned char *p16,
+ 	}
+ 
+ 	rc = mdfour(p16, (unsigned char *) wpwd, len * sizeof(__le16));
+-	memset(wpwd, 0, 129 * sizeof(__le16));
++	memzero_explicit(wpwd, sizeof(wpwd));
+ 
+ 	return rc;
+ }
+diff --git a/fs/coda/cache.c b/fs/coda/cache.c
+index 9bc1147..fd15753 100644
+--- a/fs/coda/cache.c
++++ b/fs/coda/cache.c
+@@ -24,7 +24,7 @@
+ #include "coda_linux.h"
+ #include "coda_cache.h"
+ 
+-static atomic_t permission_epoch = ATOMIC_INIT(0);
++static atomic_unchecked_t permission_epoch = ATOMIC_INIT(0);
+ 
+ /* replace or extend an acl cache hit */
+ void coda_cache_enter(struct inode *inode, int mask)
+@@ -32,7 +32,7 @@ void coda_cache_enter(struct inode *inode, int mask)
+ 	struct coda_inode_info *cii = ITOC(inode);
+ 
+ 	spin_lock(&cii->c_lock);
+-	cii->c_cached_epoch = atomic_read(&permission_epoch);
++	cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch);
+ 	if (!uid_eq(cii->c_uid, current_fsuid())) {
+ 		cii->c_uid = current_fsuid();
+                 cii->c_cached_perm = mask;
+@@ -46,14 +46,14 @@ void coda_cache_clear_inode(struct inode *inode)
+ {
+ 	struct coda_inode_info *cii = ITOC(inode);
+ 	spin_lock(&cii->c_lock);
+-	cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
++	cii->c_cached_epoch = atomic_read_unchecked(&permission_epoch) - 1;
+ 	spin_unlock(&cii->c_lock);
+ }
+ 
+ /* remove all acl caches */
+ void coda_cache_clear_all(struct super_block *sb)
+ {
+-	atomic_inc(&permission_epoch);
++	atomic_inc_unchecked(&permission_epoch);
+ }
+ 
+ 
+@@ -66,7 +66,7 @@ int coda_cache_check(struct inode *inode, int mask)
+ 	spin_lock(&cii->c_lock);
+ 	hit = (mask & cii->c_cached_perm) == mask &&
+ 	    uid_eq(cii->c_uid, current_fsuid()) &&
+-	    cii->c_cached_epoch == atomic_read(&permission_epoch);
++	    cii->c_cached_epoch == atomic_read_unchecked(&permission_epoch);
+ 	spin_unlock(&cii->c_lock);
+ 
+ 	return hit;
+diff --git a/fs/compat.c b/fs/compat.c
+index 6af20de..fec3fbb 100644
+--- a/fs/compat.c
++++ b/fs/compat.c
+@@ -54,7 +54,7 @@
+ #include <asm/ioctls.h>
+ #include "internal.h"
+ 
+-int compat_log = 1;
++int compat_log = 0;
+ 
+ int compat_printk(const char *fmt, ...)
+ {
+@@ -488,7 +488,7 @@ compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p)
+ 
+ 	set_fs(KERNEL_DS);
+ 	/* The __user pointer cast is valid because of the set_fs() */
+-	ret = sys_io_setup(nr_reqs, (aio_context_t __user *) &ctx64);
++	ret = sys_io_setup(nr_reqs, (aio_context_t __force_user *) &ctx64);
+ 	set_fs(oldfs);
+ 	/* truncating is ok because it's a user address */
+ 	if (!ret)
+@@ -546,7 +546,7 @@ ssize_t compat_rw_copy_check_uvector(int type,
+ 		goto out;
+ 
+ 	ret = -EINVAL;
+-	if (nr_segs > UIO_MAXIOV || nr_segs < 0)
++	if (nr_segs > UIO_MAXIOV)
+ 		goto out;
+ 	if (nr_segs > fast_segs) {
+ 		ret = -ENOMEM;
+@@ -834,6 +834,7 @@ struct compat_old_linux_dirent {
+ struct compat_readdir_callback {
+ 	struct dir_context ctx;
+ 	struct compat_old_linux_dirent __user *dirent;
++	struct file * file;
+ 	int result;
+ };
+ 
+@@ -851,6 +852,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen,
+ 		buf->result = -EOVERFLOW;
+ 		return -EOVERFLOW;
+ 	}
++
++	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++		return 0;
++
+ 	buf->result++;
+ 	dirent = buf->dirent;
+ 	if (!access_ok(VERIFY_WRITE, dirent,
+@@ -882,6 +887,7 @@ asmlinkage long compat_sys_old_readdir(unsigned int fd,
+ 	if (!f.file)
+ 		return -EBADF;
+ 
++	buf.file = f.file;
+ 	error = iterate_dir(f.file, &buf.ctx);
+ 	if (buf.result)
+ 		error = buf.result;
+@@ -901,6 +907,7 @@ struct compat_getdents_callback {
+ 	struct dir_context ctx;
+ 	struct compat_linux_dirent __user *current_dir;
+ 	struct compat_linux_dirent __user *previous;
++	struct file * file;
+ 	int count;
+ 	int error;
+ };
+@@ -922,6 +929,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen,
+ 		buf->error = -EOVERFLOW;
+ 		return -EOVERFLOW;
+ 	}
++
++	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++		return 0;
++
+ 	dirent = buf->previous;
+ 	if (dirent) {
+ 		if (__put_user(offset, &dirent->d_off))
+@@ -967,6 +978,7 @@ asmlinkage long compat_sys_getdents(unsigned int fd,
+ 	if (!f.file)
+ 		return -EBADF;
+ 
++	buf.file = f.file;
+ 	error = iterate_dir(f.file, &buf.ctx);
+ 	if (error >= 0)
+ 		error = buf.error;
+@@ -987,6 +999,7 @@ struct compat_getdents_callback64 {
+ 	struct dir_context ctx;
+ 	struct linux_dirent64 __user *current_dir;
+ 	struct linux_dirent64 __user *previous;
++	struct file * file;
+ 	int count;
+ 	int error;
+ };
+@@ -1003,6 +1016,10 @@ static int compat_filldir64(void * __buf, const char * name, int namlen, loff_t
+ 	buf->error = -EINVAL;	/* only used if we fail.. */
+ 	if (reclen > buf->count)
+ 		return -EINVAL;
++
++	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++		return 0;
++
+ 	dirent = buf->previous;
+ 
+ 	if (dirent) {
+@@ -1052,6 +1069,7 @@ asmlinkage long compat_sys_getdents64(unsigned int fd,
+ 	if (!f.file)
+ 		return -EBADF;
+ 
++	buf.file = f.file;
+ 	error = iterate_dir(f.file, &buf.ctx);
+ 	if (error >= 0)
+ 		error = buf.error;
+diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
+index a81147e..20bf2b5 100644
+--- a/fs/compat_binfmt_elf.c
++++ b/fs/compat_binfmt_elf.c
+@@ -30,11 +30,13 @@
+ #undef	elf_phdr
+ #undef	elf_shdr
+ #undef	elf_note
++#undef	elf_dyn
+ #undef	elf_addr_t
+ #define elfhdr		elf32_hdr
+ #define elf_phdr	elf32_phdr
+ #define elf_shdr	elf32_shdr
+ #define elf_note	elf32_note
++#define elf_dyn		Elf32_Dyn
+ #define elf_addr_t	Elf32_Addr
+ 
+ /*
+diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
+index 3881610..d4599d0 100644
+--- a/fs/compat_ioctl.c
++++ b/fs/compat_ioctl.c
+@@ -621,7 +621,7 @@ static int serial_struct_ioctl(unsigned fd, unsigned cmd,
+ 			return -EFAULT;
+                 if (__get_user(udata, &ss32->iomem_base))
+ 			return -EFAULT;
+-                ss.iomem_base = compat_ptr(udata);
++                ss.iomem_base = (unsigned char __force_kernel *)compat_ptr(udata);
+                 if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
+ 		    __get_user(ss.port_high, &ss32->port_high))
+ 			return -EFAULT;
+@@ -703,8 +703,8 @@ static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
+ 	for (i = 0; i < nmsgs; i++) {
+ 		if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
+ 			return -EFAULT;
+-		if (get_user(datap, &umsgs[i].buf) ||
+-		    put_user(compat_ptr(datap), &tmsgs[i].buf))
++		if (get_user(datap, (compat_caddr_t __user *)&umsgs[i].buf) ||
++		    put_user(compat_ptr(datap), (u8 __user * __user *)&tmsgs[i].buf))
+ 			return -EFAULT;
+ 	}
+ 	return sys_ioctl(fd, cmd, (unsigned long)tdata);
+@@ -797,7 +797,7 @@ static int compat_ioctl_preallocate(struct file *file,
+ 	    copy_in_user(&p->l_len,	&p32->l_len,	sizeof(s64)) ||
+ 	    copy_in_user(&p->l_sysid,	&p32->l_sysid,	sizeof(s32)) ||
+ 	    copy_in_user(&p->l_pid,	&p32->l_pid,	sizeof(u32)) ||
+-	    copy_in_user(&p->l_pad,	&p32->l_pad,	4*sizeof(u32)))
++	    copy_in_user(p->l_pad,	p32->l_pad,	4*sizeof(u32)))
+ 		return -EFAULT;
+ 
+ 	return ioctl_preallocate(file, p);
+@@ -1617,8 +1617,8 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
+ static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
+ {
+ 	unsigned int a, b;
+-	a = *(unsigned int *)p;
+-	b = *(unsigned int *)q;
++	a = *(const unsigned int *)p;
++	b = *(const unsigned int *)q;
+ 	if (a > b)
+ 		return 1;
+ 	if (a < b)
+diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
+index e081acb..911df21 100644
+--- a/fs/configfs/dir.c
++++ b/fs/configfs/dir.c
+@@ -1548,7 +1548,8 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
+ 	}
+ 	for (p = q->next; p != &parent_sd->s_children; p = p->next) {
+ 		struct configfs_dirent *next;
+-		const char *name;
++		const unsigned char * name;
++		char d_name[sizeof(next->s_dentry->d_iname)];
+ 		int len;
+ 		struct inode *inode = NULL;
+ 
+@@ -1557,7 +1558,12 @@ static int configfs_readdir(struct file *file, struct dir_context *ctx)
+ 			continue;
+ 
+ 		name = configfs_get_name(next);
+-		len = strlen(name);
++		if (next->s_dentry && name == next->s_dentry->d_iname) {
++			len =  next->s_dentry->d_name.len;
++			memcpy(d_name, name, len);
++			name = d_name;
++		} else
++			len = strlen(name);
+ 
+ 		/*
+ 		 * We'll have a dentry and an inode for
+diff --git a/fs/coredump.c b/fs/coredump.c
+index a93f7e6..d58bcbe 100644
+--- a/fs/coredump.c
++++ b/fs/coredump.c
+@@ -442,8 +442,8 @@ static void wait_for_dump_helpers(struct file *file)
+ 	struct pipe_inode_info *pipe = file->private_data;
+ 
+ 	pipe_lock(pipe);
+-	pipe->readers++;
+-	pipe->writers--;
++	atomic_inc(&pipe->readers);
++	atomic_dec(&pipe->writers);
+ 	wake_up_interruptible_sync(&pipe->wait);
+ 	kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+ 	pipe_unlock(pipe);
+@@ -452,11 +452,11 @@ static void wait_for_dump_helpers(struct file *file)
+ 	 * We actually want wait_event_freezable() but then we need
+ 	 * to clear TIF_SIGPENDING and improve dump_interrupted().
+ 	 */
+-	wait_event_interruptible(pipe->wait, pipe->readers == 1);
++	wait_event_interruptible(pipe->wait, atomic_read(&pipe->readers) == 1);
+ 
+ 	pipe_lock(pipe);
+-	pipe->readers--;
+-	pipe->writers++;
++	atomic_dec(&pipe->readers);
++	atomic_inc(&pipe->writers);
+ 	pipe_unlock(pipe);
+ }
+ 
+@@ -503,7 +503,9 @@ void do_coredump(const siginfo_t *siginfo)
+ 	struct files_struct *displaced;
+ 	bool need_nonrelative = false;
+ 	bool core_dumped = false;
+-	static atomic_t core_dump_count = ATOMIC_INIT(0);
++	static atomic_unchecked_t core_dump_count = ATOMIC_INIT(0);
++	long signr = siginfo->si_signo;
++	int dumpable;
+ 	struct coredump_params cprm = {
+ 		.siginfo = siginfo,
+ 		.regs = signal_pt_regs(),
+@@ -516,12 +518,17 @@ void do_coredump(const siginfo_t *siginfo)
+ 		.mm_flags = mm->flags,
+ 	};
+ 
+-	audit_core_dumps(siginfo->si_signo);
++	audit_core_dumps(signr);
++
++	dumpable = __get_dumpable(cprm.mm_flags);
++
++	if (signr == SIGSEGV || signr == SIGBUS || signr == SIGKILL || signr == SIGILL)
++		gr_handle_brute_attach(dumpable);
+ 
+ 	binfmt = mm->binfmt;
+ 	if (!binfmt || !binfmt->core_dump)
+ 		goto fail;
+-	if (!__get_dumpable(cprm.mm_flags))
++	if (!dumpable)
+ 		goto fail;
+ 
+ 	cred = prepare_creds();
+@@ -540,7 +547,7 @@ void do_coredump(const siginfo_t *siginfo)
+ 		need_nonrelative = true;
+ 	}
+ 
+-	retval = coredump_wait(siginfo->si_signo, &core_state);
++	retval = coredump_wait(signr, &core_state);
+ 	if (retval < 0)
+ 		goto fail_creds;
+ 
+@@ -583,7 +590,7 @@ void do_coredump(const siginfo_t *siginfo)
+ 		}
+ 		cprm.limit = RLIM_INFINITY;
+ 
+-		dump_count = atomic_inc_return(&core_dump_count);
++		dump_count = atomic_inc_return_unchecked(&core_dump_count);
+ 		if (core_pipe_limit && (core_pipe_limit < dump_count)) {
+ 			printk(KERN_WARNING "Pid %d(%s) over core_pipe_limit\n",
+ 			       task_tgid_vnr(current), current->comm);
+@@ -615,6 +622,8 @@ void do_coredump(const siginfo_t *siginfo)
+ 	} else {
+ 		struct inode *inode;
+ 
++		gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1);
++
+ 		if (cprm.limit < binfmt->min_coredump)
+ 			goto fail_unlock;
+ 
+@@ -673,7 +682,7 @@ close_fail:
+ 		filp_close(cprm.file, NULL);
+ fail_dropcount:
+ 	if (ispipe)
+-		atomic_dec(&core_dump_count);
++		atomic_dec_unchecked(&core_dump_count);
+ fail_unlock:
+ 	kfree(cn.corename);
+ 	coredump_finish(mm, core_dumped);
+@@ -694,6 +703,8 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
+ 	struct file *file = cprm->file;
+ 	loff_t pos = file->f_pos;
+ 	ssize_t n;
++
++	gr_learn_resource(current, RLIMIT_CORE, cprm->written + nr, 1);
+ 	if (cprm->written + nr > cprm->limit)
+ 		return 0;
+ 	while (nr) {
+diff --git a/fs/dcache.c b/fs/dcache.c
+index 1d7e8a3..f87d4b8 100644
+--- a/fs/dcache.c
++++ b/fs/dcache.c
+@@ -250,7 +250,7 @@ static void __d_free(struct rcu_head *head)
+ static void d_free(struct dentry *dentry)
+ {
+ 	WARN_ON(!hlist_unhashed(&dentry->d_u.d_alias));
+-	BUG_ON((int)dentry->d_lockref.count > 0);
++	BUG_ON((int)__lockref_read(&dentry->d_lockref) > 0);
+ 	this_cpu_dec(nr_dentry);
+ 	if (dentry->d_op && dentry->d_op->d_release)
+ 		dentry->d_op->d_release(dentry);
+@@ -596,7 +596,7 @@ repeat:
+ 		dentry->d_flags |= DCACHE_REFERENCED;
+ 	dentry_lru_add(dentry);
+ 
+-	dentry->d_lockref.count--;
++	__lockref_dec(&dentry->d_lockref);
+ 	spin_unlock(&dentry->d_lock);
+ 	return;
+ 
+@@ -651,7 +651,7 @@ int d_invalidate(struct dentry * dentry)
+ 	 * We also need to leave mountpoints alone,
+ 	 * directory or not.
+ 	 */
+-	if (dentry->d_lockref.count > 1 && dentry->d_inode) {
++	if (__lockref_read(&dentry->d_lockref) > 1 && dentry->d_inode) {
+ 		if (S_ISDIR(dentry->d_inode->i_mode) || d_mountpoint(dentry)) {
+ 			spin_unlock(&dentry->d_lock);
+ 			return -EBUSY;
+@@ -667,7 +667,7 @@ EXPORT_SYMBOL(d_invalidate);
+ /* This must be called with d_lock held */
+ static inline void __dget_dlock(struct dentry *dentry)
+ {
+-	dentry->d_lockref.count++;
++	__lockref_inc(&dentry->d_lockref);
+ }
+ 
+ static inline void __dget(struct dentry *dentry)
+@@ -708,8 +708,8 @@ repeat:
+ 		goto repeat;
+ 	}
+ 	rcu_read_unlock();
+-	BUG_ON(!ret->d_lockref.count);
+-	ret->d_lockref.count++;
++	BUG_ON(!__lockref_read(&ret->d_lockref));
++	__lockref_inc(&ret->d_lockref);
+ 	spin_unlock(&ret->d_lock);
+ 	return ret;
+ }
+@@ -792,7 +792,7 @@ restart:
+ 	spin_lock(&inode->i_lock);
+ 	hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
+ 		spin_lock(&dentry->d_lock);
+-		if (!dentry->d_lockref.count) {
++		if (!__lockref_read(&dentry->d_lockref)) {
+ 			/*
+ 			 * inform the fs via d_prune that this dentry
+ 			 * is about to be unhashed and destroyed.
+@@ -884,7 +884,7 @@ static void shrink_dentry_list(struct list_head *list)
+ 		 * We found an inuse dentry which was not removed from
+ 		 * the LRU because of laziness during lookup. Do not free it.
+ 		 */
+-		if (dentry->d_lockref.count) {
++		if (__lockref_read(&dentry->d_lockref)) {
+ 			spin_unlock(&dentry->d_lock);
+ 			continue;
+ 		}
+@@ -930,7 +930,7 @@ dentry_lru_isolate(struct list_head *item, spinlock_t *lru_lock, void *arg)
+ 	 * counts, just remove them from the LRU. Otherwise give them
+ 	 * another pass through the LRU.
+ 	 */
+-	if (dentry->d_lockref.count) {
++	if (__lockref_read(&dentry->d_lockref) > 0) {
+ 		d_lru_isolate(dentry);
+ 		spin_unlock(&dentry->d_lock);
+ 		return LRU_REMOVED;
+@@ -1269,7 +1269,7 @@ static enum d_walk_ret select_collect(void *_data, struct dentry *dentry)
+ 	 * loop in shrink_dcache_parent() might not make any progress
+ 	 * and loop forever.
+ 	 */
+-	if (dentry->d_lockref.count) {
++	if (__lockref_read(&dentry->d_lockref)) {
+ 		dentry_lru_del(dentry);
+ 	} else if (!(dentry->d_flags & DCACHE_SHRINK_LIST)) {
+ 		/*
+@@ -1323,11 +1323,11 @@ static enum d_walk_ret umount_collect(void *_data, struct dentry *dentry)
+ 	struct select_data *data = _data;
+ 	enum d_walk_ret ret = D_WALK_CONTINUE;
+ 
+-	if (dentry->d_lockref.count) {
++	if (__lockref_read(&dentry->d_lockref)) {
+ 		dentry_lru_del(dentry);
+ 		if (likely(!list_empty(&dentry->d_subdirs)))
+ 			goto out;
+-		if (dentry == data->start && dentry->d_lockref.count == 1)
++		if (dentry == data->start && __lockref_read(&dentry->d_lockref) == 1)
+ 			goto out;
+ 		printk(KERN_ERR
+ 		       "BUG: Dentry %p{i=%lx,n=%s}"
+@@ -1337,7 +1337,7 @@ static enum d_walk_ret umount_collect(void *_data, struct dentry *dentry)
+ 		       dentry->d_inode ?
+ 		       dentry->d_inode->i_ino : 0UL,
+ 		       dentry->d_name.name,
+-		       dentry->d_lockref.count,
++		       __lockref_read(&dentry->d_lockref),
+ 		       dentry->d_sb->s_type->name,
+ 		       dentry->d_sb->s_id);
+ 		BUG();
+@@ -1495,7 +1495,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
+ 	 */
+ 	dentry->d_iname[DNAME_INLINE_LEN-1] = 0;
+ 	if (name->len > DNAME_INLINE_LEN-1) {
+-		dname = kmalloc(name->len + 1, GFP_KERNEL);
++		dname = kmalloc(round_up(name->len + 1, sizeof(unsigned long)), GFP_KERNEL);
+ 		if (!dname) {
+ 			kmem_cache_free(dentry_cache, dentry); 
+ 			return NULL;
+@@ -1513,7 +1513,7 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
+ 	smp_wmb();
+ 	dentry->d_name.name = dname;
+ 
+-	dentry->d_lockref.count = 1;
++	__lockref_set(&dentry->d_lockref, 1);
+ 	dentry->d_flags = 0;
+ 	spin_lock_init(&dentry->d_lock);
+ 	seqcount_init(&dentry->d_seq);
+@@ -1522,6 +1522,9 @@ struct dentry *__d_alloc(struct super_block *sb, const struct qstr *name)
+ 	dentry->d_sb = sb;
+ 	dentry->d_op = NULL;
+ 	dentry->d_fsdata = NULL;
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	atomic_set(&dentry->chroot_refcnt, 0);
++#endif
+ 	INIT_HLIST_BL_NODE(&dentry->d_hash);
+ 	INIT_LIST_HEAD(&dentry->d_lru);
+ 	INIT_LIST_HEAD(&dentry->d_subdirs);
+@@ -2276,7 +2279,7 @@ struct dentry *__d_lookup(const struct dentry *parent, const struct qstr *name)
+ 				goto next;
+ 		}
+ 
+-		dentry->d_lockref.count++;
++		__lockref_inc(&dentry->d_lockref);
+ 		found = dentry;
+ 		spin_unlock(&dentry->d_lock);
+ 		break;
+@@ -2375,7 +2378,7 @@ again:
+ 	spin_lock(&dentry->d_lock);
+ 	inode = dentry->d_inode;
+ 	isdir = S_ISDIR(inode->i_mode);
+-	if (dentry->d_lockref.count == 1) {
++	if (__lockref_read(&dentry->d_lockref) == 1) {
+ 		if (!spin_trylock(&inode->i_lock)) {
+ 			spin_unlock(&dentry->d_lock);
+ 			cpu_relax();
+@@ -3319,7 +3322,7 @@ static enum d_walk_ret d_genocide_kill(void *data, struct dentry *dentry)
+ 
+ 		if (!(dentry->d_flags & DCACHE_GENOCIDE)) {
+ 			dentry->d_flags |= DCACHE_GENOCIDE;
+-			dentry->d_lockref.count--;
++			__lockref_dec(&dentry->d_lockref);
+ 		}
+ 	}
+ 	return D_WALK_CONTINUE;
+@@ -3435,7 +3438,8 @@ void __init vfs_caches_init(unsigned long mempages)
+ 	mempages -= reserve;
+ 
+ 	names_cachep = kmem_cache_create("names_cache", PATH_MAX, 0,
+-			SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
++			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_USERCOPY|
++			SLAB_NO_SANITIZE, NULL);
+ 
+ 	dcache_init();
+ 	inode_init();
+diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
+index 4a9f0e0..54ea0cc 100644
+--- a/fs/debugfs/inode.c
++++ b/fs/debugfs/inode.c
+@@ -422,10 +422,20 @@ EXPORT_SYMBOL_GPL(debugfs_create_file);
+  * If debugfs is not enabled in the kernel, the value -%ENODEV will be
+  * returned.
+  */
++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
++extern int grsec_enable_sysfs_restrict;
++#endif
++
+ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
+ {
+-	return __create_file(name, S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
+-				   parent, NULL, NULL);
++	umode_t mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
++
++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
++	if (grsec_enable_sysfs_restrict)
++		mode = S_IFDIR | S_IRWXU;
++#endif
++
++	return __create_file(name, mode, parent, NULL, NULL);
+ }
+ EXPORT_SYMBOL_GPL(debugfs_create_dir);
+ 
+diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
+index a85ceb7..5097313b 100644
+--- a/fs/ecryptfs/inode.c
++++ b/fs/ecryptfs/inode.c
+@@ -673,7 +673,7 @@ static char *ecryptfs_readlink_lower(struct dentry *dentry, size_t *bufsiz)
+ 	old_fs = get_fs();
+ 	set_fs(get_ds());
+ 	rc = lower_dentry->d_inode->i_op->readlink(lower_dentry,
+-						   (char __user *)lower_buf,
++						   (char __force_user *)lower_buf,
+ 						   PATH_MAX);
+ 	set_fs(old_fs);
+ 	if (rc < 0)
+diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
+index e4141f2..d8263e8 100644
+--- a/fs/ecryptfs/miscdev.c
++++ b/fs/ecryptfs/miscdev.c
+@@ -304,7 +304,7 @@ check_list:
+ 		goto out_unlock_msg_ctx;
+ 	i = PKT_TYPE_SIZE + PKT_CTR_SIZE;
+ 	if (msg_ctx->msg) {
+-		if (copy_to_user(&buf[i], packet_length, packet_length_size))
++		if (packet_length_size > sizeof(packet_length) || copy_to_user(&buf[i], packet_length, packet_length_size))
+ 			goto out_unlock_msg_ctx;
+ 		i += packet_length_size;
+ 		if (copy_to_user(&buf[i], msg_ctx->msg, msg_ctx->msg_size))
+diff --git a/fs/exec.c b/fs/exec.c
+index 05f1942..747fc21 100644
+--- a/fs/exec.c
++++ b/fs/exec.c
+@@ -56,8 +56,20 @@
+ #include <linux/pipe_fs_i.h>
+ #include <linux/oom.h>
+ #include <linux/compat.h>
++#include <linux/random.h>
++#include <linux/seq_file.h>
++#include <linux/coredump.h>
++#include <linux/mman.h>
++
++#ifdef CONFIG_PAX_REFCOUNT
++#include <linux/kallsyms.h>
++#include <linux/kdebug.h>
++#endif
++
++#include <trace/events/fs.h>
+ 
+ #include <asm/uaccess.h>
++#include <asm/sections.h>
+ #include <asm/mmu_context.h>
+ #include <asm/tlb.h>
+ 
+@@ -66,19 +78,34 @@
+ 
+ #include <trace/events/sched.h>
+ 
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++void __weak pax_set_initial_flags(struct linux_binprm *bprm)
++{
++	pr_warn_once("PAX: PAX_HAVE_ACL_FLAGS was enabled without providing the pax_set_initial_flags callback, this is probably not what you wanted.\n");
++}
++#endif
++
++#ifdef CONFIG_PAX_HOOK_ACL_FLAGS
++void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
++EXPORT_SYMBOL(pax_set_initial_flags_func);
++#endif
++
+ int suid_dumpable = 0;
+ 
+ static LIST_HEAD(formats);
+ static DEFINE_RWLOCK(binfmt_lock);
+ 
++extern int gr_process_kernel_exec_ban(void);
++extern int gr_process_suid_exec_ban(const struct linux_binprm *bprm);
++
+ void __register_binfmt(struct linux_binfmt * fmt, int insert)
+ {
+ 	BUG_ON(!fmt);
+ 	if (WARN_ON(!fmt->load_binary))
+ 		return;
+ 	write_lock(&binfmt_lock);
+-	insert ? list_add(&fmt->lh, &formats) :
+-		 list_add_tail(&fmt->lh, &formats);
++	insert ? pax_list_add((struct list_head *)&fmt->lh, &formats) :
++		 pax_list_add_tail((struct list_head *)&fmt->lh, &formats);
+ 	write_unlock(&binfmt_lock);
+ }
+ 
+@@ -87,7 +114,7 @@ EXPORT_SYMBOL(__register_binfmt);
+ void unregister_binfmt(struct linux_binfmt * fmt)
+ {
+ 	write_lock(&binfmt_lock);
+-	list_del(&fmt->lh);
++	pax_list_del((struct list_head *)&fmt->lh);
+ 	write_unlock(&binfmt_lock);
+ }
+ 
+@@ -181,18 +208,10 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
+ 		int write)
+ {
+ 	struct page *page;
+-	int ret;
+ 
+-#ifdef CONFIG_STACK_GROWSUP
+-	if (write) {
+-		ret = expand_downwards(bprm->vma, pos);
+-		if (ret < 0)
+-			return NULL;
+-	}
+-#endif
+-	ret = get_user_pages(current, bprm->mm, pos,
+-			1, write, 1, &page, NULL);
+-	if (ret <= 0)
++	if (0 > expand_downwards(bprm->vma, pos))
++		return NULL;
++	if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL))
+ 		return NULL;
+ 
+ 	if (write) {
+@@ -208,6 +227,17 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
+ 		if (size <= ARG_MAX)
+ 			return page;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++		// only allow 512KB for argv+env on suid/sgid binaries
++		// to prevent easy ASLR exhaustion
++		if (((!uid_eq(bprm->cred->euid, current_euid())) ||
++		     (!gid_eq(bprm->cred->egid, current_egid()))) &&
++		    (size > (512 * 1024))) {
++			put_page(page);
++			return NULL;
++		}
++#endif
++
+ 		/*
+ 		 * Limit to 1/4-th the stack size for the argv+env strings.
+ 		 * This ensures that:
+@@ -267,6 +297,11 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
+ 	vma->vm_end = STACK_TOP_MAX;
+ 	vma->vm_start = vma->vm_end - PAGE_SIZE;
+ 	vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
++#endif
++
+ 	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+ 	INIT_LIST_HEAD(&vma->anon_vma_chain);
+ 
+@@ -277,6 +312,12 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
+ 	mm->stack_vm = mm->total_vm = 1;
+ 	up_write(&mm->mmap_sem);
+ 	bprm->p = vma->vm_end - sizeof(void *);
++
++#ifdef CONFIG_PAX_RANDUSTACK
++	if (randomize_va_space)
++		bprm->p ^= prandom_u32() & ~PAGE_MASK;
++#endif
++
+ 	return 0;
+ err:
+ 	up_write(&mm->mmap_sem);
+@@ -397,7 +438,7 @@ struct user_arg_ptr {
+ 	} ptr;
+ };
+ 
+-static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
++const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
+ {
+ 	const char __user *native;
+ 
+@@ -406,14 +447,14 @@ static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
+ 		compat_uptr_t compat;
+ 
+ 		if (get_user(compat, argv.ptr.compat + nr))
+-			return ERR_PTR(-EFAULT);
++			return (const char __force_user *)ERR_PTR(-EFAULT);
+ 
+ 		return compat_ptr(compat);
+ 	}
+ #endif
+ 
+ 	if (get_user(native, argv.ptr.native + nr))
+-		return ERR_PTR(-EFAULT);
++		return (const char __force_user *)ERR_PTR(-EFAULT);
+ 
+ 	return native;
+ }
+@@ -432,7 +473,7 @@ static int count(struct user_arg_ptr argv, int max)
+ 			if (!p)
+ 				break;
+ 
+-			if (IS_ERR(p))
++			if (IS_ERR((const char __force_kernel *)p))
+ 				return -EFAULT;
+ 
+ 			if (i >= max)
+@@ -467,7 +508,7 @@ static int copy_strings(int argc, struct user_arg_ptr argv,
+ 
+ 		ret = -EFAULT;
+ 		str = get_user_arg_ptr(argv, argc);
+-		if (IS_ERR(str))
++		if (IS_ERR((const char __force_kernel *)str))
+ 			goto out;
+ 
+ 		len = strnlen_user(str, MAX_ARG_STRLEN);
+@@ -549,7 +590,7 @@ int copy_strings_kernel(int argc, const char *const *__argv,
+ 	int r;
+ 	mm_segment_t oldfs = get_fs();
+ 	struct user_arg_ptr argv = {
+-		.ptr.native = (const char __user *const  __user *)__argv,
++		.ptr.native = (const char __user * const __force_user *)__argv,
+ 	};
+ 
+ 	set_fs(KERNEL_DS);
+@@ -584,7 +625,8 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
+ 	unsigned long new_end = old_end - shift;
+ 	struct mmu_gather tlb;
+ 
+-	BUG_ON(new_start > new_end);
++	if (new_start >= new_end || new_start < mmap_min_addr)
++		return -ENOMEM;
+ 
+ 	/*
+ 	 * ensure there are no vmas between where we want to go
+@@ -593,6 +635,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
+ 	if (vma != find_vma(mm, new_start))
+ 		return -EFAULT;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	BUG_ON(pax_find_mirror_vma(vma));
++#endif
++
+ 	/*
+ 	 * cover the whole range: [new_start, old_end)
+ 	 */
+@@ -673,10 +719,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
+ 	stack_top = arch_align_stack(stack_top);
+ 	stack_top = PAGE_ALIGN(stack_top);
+ 
+-	if (unlikely(stack_top < mmap_min_addr) ||
+-	    unlikely(vma->vm_end - vma->vm_start >= stack_top - mmap_min_addr))
+-		return -ENOMEM;
+-
+ 	stack_shift = vma->vm_end - stack_top;
+ 
+ 	bprm->p -= stack_shift;
+@@ -688,8 +730,28 @@ int setup_arg_pages(struct linux_binprm *bprm,
+ 	bprm->exec -= stack_shift;
+ 
+ 	down_write(&mm->mmap_sem);
++
++	/* Move stack pages down in memory. */
++	if (stack_shift) {
++		ret = shift_arg_pages(vma, stack_shift);
++		if (ret)
++			goto out_unlock;
++	}
++
+ 	vm_flags = VM_STACK_FLAGS;
+ 
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++	if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++		vm_flags &= ~VM_EXEC;
++
++#ifdef CONFIG_PAX_MPROTECT
++		if (mm->pax_flags & MF_PAX_MPROTECT)
++			vm_flags &= ~VM_MAYEXEC;
++#endif
++
++	}
++#endif
++
+ 	/*
+ 	 * Adjust stack execute permissions; explicitly enable for
+ 	 * EXSTACK_ENABLE_X, disable for EXSTACK_DISABLE_X and leave alone
+@@ -708,13 +770,6 @@ int setup_arg_pages(struct linux_binprm *bprm,
+ 		goto out_unlock;
+ 	BUG_ON(prev != vma);
+ 
+-	/* Move stack pages down in memory. */
+-	if (stack_shift) {
+-		ret = shift_arg_pages(vma, stack_shift);
+-		if (ret)
+-			goto out_unlock;
+-	}
+-
+ 	/* mprotect_fixup is overkill to remove the temporary stack flags */
+ 	vma->vm_flags &= ~VM_STACK_INCOMPLETE_SETUP;
+ 
+@@ -738,6 +793,27 @@ int setup_arg_pages(struct linux_binprm *bprm,
+ #endif
+ 	current->mm->start_stack = bprm->p;
+ 	ret = expand_stack(vma, stack_base);
++
++#if !defined(CONFIG_STACK_GROWSUP) && defined(CONFIG_PAX_RANDMMAP)
++	if (!ret && (mm->pax_flags & MF_PAX_RANDMMAP) && STACK_TOP <= 0xFFFFFFFFU && STACK_TOP > vma->vm_end) {
++		unsigned long size;
++		vm_flags_t vm_flags;
++
++		size = STACK_TOP - vma->vm_end;
++		vm_flags = VM_NONE | VM_DONTEXPAND | VM_DONTDUMP;
++
++		ret = vma->vm_end != mmap_region(NULL, vma->vm_end, size, vm_flags, 0);
++
++#ifdef CONFIG_X86
++		if (!ret) {
++			size = PAGE_SIZE + mmap_min_addr + ((mm->delta_mmap ^ mm->delta_stack) & (0xFFUL << PAGE_SHIFT));
++			ret = 0 != mmap_region(NULL, 0, PAGE_ALIGN(size), vm_flags, 0);
++		}
++#endif
++
++	}
++#endif
++
+ 	if (ret)
+ 		ret = -EFAULT;
+ 
+@@ -773,6 +849,8 @@ static struct file *do_open_exec(struct filename *name)
+ 
+ 	fsnotify_open(file);
+ 
++	trace_open_exec(name->name);
++
+ 	err = deny_write_access(file);
+ 	if (err)
+ 		goto exit;
+@@ -802,7 +880,7 @@ int kernel_read(struct file *file, loff_t offset,
+ 	old_fs = get_fs();
+ 	set_fs(get_ds());
+ 	/* The cast to a user pointer is valid due to the set_fs() */
+-	result = vfs_read(file, (void __user *)addr, count, &pos);
++	result = vfs_read(file, (void __force_user *)addr, count, &pos);
+ 	set_fs(old_fs);
+ 	return result;
+ }
+@@ -847,6 +925,7 @@ static int exec_mmap(struct mm_struct *mm)
+ 	tsk->mm = mm;
+ 	tsk->active_mm = mm;
+ 	activate_mm(active_mm, mm);
++	populate_stack();
+ 	tsk->mm->vmacache_seqnum = 0;
+ 	vmacache_flush(tsk);
+ 	task_unlock(tsk);
+@@ -913,10 +992,14 @@ static int de_thread(struct task_struct *tsk)
+ 	if (!thread_group_leader(tsk)) {
+ 		struct task_struct *leader = tsk->group_leader;
+ 
+-		sig->notify_count = -1;	/* for exit_notify() */
+ 		for (;;) {
+ 			threadgroup_change_begin(tsk);
+ 			write_lock_irq(&tasklist_lock);
++			/*
++			 * Do this under tasklist_lock to ensure that
++			 * exit_notify() can't miss ->group_exit_task
++			 */
++			sig->notify_count = -1;
+ 			if (likely(leader->exit_state))
+ 				break;
+ 			__set_current_state(TASK_KILLABLE);
+@@ -1261,7 +1344,7 @@ static void check_unsafe_exec(struct linux_binprm *bprm)
+ 	}
+ 	rcu_read_unlock();
+ 
+-	if (p->fs->users > n_fs)
++	if (atomic_read(&p->fs->users) > n_fs)
+ 		bprm->unsafe |= LSM_UNSAFE_SHARE;
+ 	else
+ 		p->fs->in_exec = 1;
+@@ -1457,6 +1540,31 @@ static int exec_binprm(struct linux_binprm *bprm)
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++static DEFINE_PER_CPU(u64, exec_counter);
++static int __init init_exec_counters(void)
++{
++	unsigned int cpu;
++
++	for_each_possible_cpu(cpu) {
++		per_cpu(exec_counter, cpu) = (u64)cpu;
++	}
++
++	return 0;
++}
++early_initcall(init_exec_counters);
++static inline void increment_exec_counter(void)
++{
++	BUILD_BUG_ON(NR_CPUS > (1 << 16));
++	current->exec_id = this_cpu_add_return(exec_counter, 1 << 16);
++}
++#else
++static inline void increment_exec_counter(void) {}
++#endif
++
++extern void gr_handle_exec_args(struct linux_binprm *bprm,
++				struct user_arg_ptr argv);
++
+ /*
+  * sys_execve() executes a new program.
+  */
+@@ -1464,6 +1572,11 @@ static int do_execve_common(struct filename *filename,
+ 				struct user_arg_ptr argv,
+ 				struct user_arg_ptr envp)
+ {
++#ifdef CONFIG_GRKERNSEC
++	struct file *old_exec_file;
++	struct acl_subject_label *old_acl;
++	struct rlimit old_rlim[RLIM_NLIMITS];
++#endif
+ 	struct linux_binprm *bprm;
+ 	struct file *file;
+ 	struct files_struct *displaced;
+@@ -1472,6 +1585,8 @@ static int do_execve_common(struct filename *filename,
+ 	if (IS_ERR(filename))
+ 		return PTR_ERR(filename);
+ 
++	gr_learn_resource(current, RLIMIT_NPROC, atomic_read(&current_user()->processes), 1);
++
+ 	/*
+ 	 * We move the actual failure in case of RLIMIT_NPROC excess from
+ 	 * set*uid() to execve() because too many poorly written programs
+@@ -1509,11 +1624,21 @@ static int do_execve_common(struct filename *filename,
+ 	if (IS_ERR(file))
+ 		goto out_unmark;
+ 
++	if (gr_ptrace_readexec(file, bprm->unsafe)) {
++		retval = -EPERM;
++		goto out_unmark;
++	}
++
+ 	sched_exec();
+ 
+ 	bprm->file = file;
+ 	bprm->filename = bprm->interp = filename->name;
+ 
++	if (!gr_acl_handle_execve(file->f_path.dentry, file->f_path.mnt)) {
++		retval = -EACCES;
++		goto out_unmark;
++	}
++
+ 	retval = bprm_mm_init(bprm);
+ 	if (retval)
+ 		goto out_unmark;
+@@ -1530,24 +1655,70 @@ static int do_execve_common(struct filename *filename,
+ 	if (retval < 0)
+ 		goto out;
+ 
++#ifdef CONFIG_GRKERNSEC
++	old_acl = current->acl;
++	memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim));
++	old_exec_file = current->exec_file;
++	get_file(file);
++	current->exec_file = file;
++#endif
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	/* limit suid stack to 8MB
++	 * we saved the old limits above and will restore them if this exec fails
++	 */
++	if (((!uid_eq(bprm->cred->euid, current_euid())) || (!gid_eq(bprm->cred->egid, current_egid()))) &&
++	    (old_rlim[RLIMIT_STACK].rlim_cur > (8 * 1024 * 1024)))
++		current->signal->rlim[RLIMIT_STACK].rlim_cur = 8 * 1024 * 1024;
++#endif
++
++	if (gr_process_kernel_exec_ban() || gr_process_suid_exec_ban(bprm)) {
++		retval = -EPERM;
++		goto out_fail;
++	}
++
++	if (!gr_tpe_allow(file)) {
++		retval = -EACCES;
++		goto out_fail;
++	}
++
++	if (gr_check_crash_exec(file)) {
++		retval = -EACCES;
++		goto out_fail;
++	}
++
++	retval = gr_set_proc_label(file->f_path.dentry, file->f_path.mnt,
++					bprm->unsafe);
++	if (retval < 0)
++		goto out_fail;
++
+ 	retval = copy_strings_kernel(1, &bprm->filename, bprm);
+ 	if (retval < 0)
+-		goto out;
++		goto out_fail;
+ 
+ 	bprm->exec = bprm->p;
+ 	retval = copy_strings(bprm->envc, envp, bprm);
+ 	if (retval < 0)
+-		goto out;
++		goto out_fail;
+ 
+ 	retval = copy_strings(bprm->argc, argv, bprm);
+ 	if (retval < 0)
+-		goto out;
++		goto out_fail;
++
++	gr_log_chroot_exec(file->f_path.dentry, file->f_path.mnt);
++
++	gr_handle_exec_args(bprm, argv);
+ 
+ 	retval = exec_binprm(bprm);
+ 	if (retval < 0)
+-		goto out;
++		goto out_fail;
++#ifdef CONFIG_GRKERNSEC
++	if (old_exec_file)
++		fput(old_exec_file);
++#endif
+ 
+ 	/* execve succeeded */
++
++	increment_exec_counter();
+ 	current->fs->in_exec = 0;
+ 	current->in_execve = 0;
+ 	acct_update_integrals(current);
+@@ -1558,6 +1729,14 @@ static int do_execve_common(struct filename *filename,
+ 		put_files_struct(displaced);
+ 	return retval;
+ 
++out_fail:
++#ifdef CONFIG_GRKERNSEC
++	current->acl = old_acl;
++	memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim));
++	fput(current->exec_file);
++	current->exec_file = old_exec_file;
++#endif
++
+ out:
+ 	if (bprm->mm) {
+ 		acct_arg_size(bprm, 0);
+@@ -1649,3 +1828,312 @@ asmlinkage long compat_sys_execve(const char __user * filename,
+ 	return compat_do_execve(getname(filename), argv, envp);
+ }
+ #endif
++
++int pax_check_flags(unsigned long *flags)
++{
++	int retval = 0;
++
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC)
++	if (*flags & MF_PAX_SEGMEXEC)
++	{
++		*flags &= ~MF_PAX_SEGMEXEC;
++	retval = -EINVAL;
++	}
++#endif
++
++	if ((*flags & MF_PAX_PAGEEXEC)
++
++#ifdef CONFIG_PAX_PAGEEXEC
++	    &&  (*flags & MF_PAX_SEGMEXEC)
++#endif
++
++	   )
++	{
++		*flags &= ~MF_PAX_PAGEEXEC;
++		retval = -EINVAL;
++	}
++
++	if ((*flags & MF_PAX_MPROTECT)
++
++#ifdef CONFIG_PAX_MPROTECT
++	    && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
++#endif
++
++	   )
++	{
++		*flags &= ~MF_PAX_MPROTECT;
++	retval = -EINVAL;
++	}
++
++	if ((*flags & MF_PAX_EMUTRAMP)
++
++#ifdef CONFIG_PAX_EMUTRAMP
++	    && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC))
++#endif
++
++	   )
++	{
++		*flags &= ~MF_PAX_EMUTRAMP;
++		retval = -EINVAL;
++	}
++
++	return retval;
++}
++
++EXPORT_SYMBOL(pax_check_flags);
++
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++char *pax_get_path(const struct path *path, char *buf, int buflen)
++{
++	char *pathname = d_path(path, buf, buflen);
++
++	if (IS_ERR(pathname))
++		goto toolong;
++
++	pathname = mangle_path(buf, pathname, "\t\n\\");
++	if (!pathname)
++		goto toolong;
++
++	*pathname = 0;
++	return buf;
++
++toolong:
++	return "<path too long>";
++}
++EXPORT_SYMBOL(pax_get_path);
++
++void pax_report_fault(struct pt_regs *regs, void *pc, void *sp)
++{
++	struct task_struct *tsk = current;
++	struct mm_struct *mm = current->mm;
++	char *buffer_exec = (char *)__get_free_page(GFP_KERNEL);
++	char *buffer_fault = (char *)__get_free_page(GFP_KERNEL);
++	char *path_exec = NULL;
++	char *path_fault = NULL;
++	unsigned long start = 0UL, end = 0UL, offset = 0UL;
++	siginfo_t info = { };
++
++	if (buffer_exec && buffer_fault) {
++		struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL;
++
++		down_read(&mm->mmap_sem);
++		vma = mm->mmap;
++		while (vma && (!vma_exec || !vma_fault)) {
++			if (vma->vm_file && mm->exe_file == vma->vm_file && (vma->vm_flags & VM_EXEC))
++				vma_exec = vma;
++			if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end)
++				vma_fault = vma;
++			vma = vma->vm_next;
++		}
++		if (vma_exec)
++			path_exec = pax_get_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE);
++		if (vma_fault) {
++			start = vma_fault->vm_start;
++			end = vma_fault->vm_end;
++			offset = vma_fault->vm_pgoff << PAGE_SHIFT;
++			if (vma_fault->vm_file)
++				path_fault = pax_get_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE);
++			else if ((unsigned long)pc >= mm->start_brk && (unsigned long)pc < mm->brk)
++				path_fault = "<heap>";
++			else if (vma_fault->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
++				path_fault = "<stack>";
++			else
++				path_fault = "<anonymous mapping>";
++		}
++		up_read(&mm->mmap_sem);
++	}
++	if (tsk->signal->curr_ip)
++		printk(KERN_ERR "PAX: From %pI4: execution attempt in: %s, %08lx-%08lx %08lx\n", &tsk->signal->curr_ip, path_fault, start, end, offset);
++	else
++		printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset);
++	printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk),
++			from_kuid_munged(&init_user_ns, task_uid(tsk)), from_kuid_munged(&init_user_ns, task_euid(tsk)), pc, sp);
++	free_page((unsigned long)buffer_exec);
++	free_page((unsigned long)buffer_fault);
++	pax_report_insns(regs, pc, sp);
++	info.si_signo = SIGKILL;
++	info.si_errno = 0;
++	info.si_code = SI_KERNEL;
++	info.si_pid = 0;
++	info.si_uid = 0;
++	do_coredump(&info);
++}
++#endif
++
++#ifdef CONFIG_PAX_REFCOUNT
++void pax_report_refcount_overflow(struct pt_regs *regs)
++{
++	if (current->signal->curr_ip)
++		printk(KERN_ERR "PAX: From %pI4: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n",
++				&current->signal->curr_ip, current->comm, task_pid_nr(current),
++				from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
++	else
++		printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", current->comm, task_pid_nr(current),
++				from_kuid_munged(&init_user_ns, current_uid()), from_kuid_munged(&init_user_ns, current_euid()));
++	print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs));
++	preempt_disable();
++	show_regs(regs);
++	preempt_enable();
++	force_sig_info(SIGKILL, SEND_SIG_FORCED, current);
++}
++#endif
++
++#ifdef CONFIG_PAX_USERCOPY
++/* 0: not at all, 1: fully, 2: fully inside frame, -1: partially (implies an error) */
++static noinline int check_stack_object(const void *obj, unsigned long len)
++{
++	const void * const stack = task_stack_page(current);
++	const void * const stackend = stack + THREAD_SIZE;
++
++#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
++	const void *frame = NULL;
++	const void *oldframe;
++#endif
++
++	if (obj + len < obj)
++		return -1;
++
++	if (obj + len <= stack || stackend <= obj)
++		return 0;
++
++	if (obj < stack || stackend < obj + len)
++		return -1;
++
++#if defined(CONFIG_FRAME_POINTER) && defined(CONFIG_X86)
++	oldframe = __builtin_frame_address(1);
++	if (oldframe)
++		frame = __builtin_frame_address(2);
++	/*
++	  low ----------------------------------------------> high
++	  [saved bp][saved ip][args][local vars][saved bp][saved ip]
++			      ^----------------^
++			  allow copies only within here
++	*/
++	while (stack <= frame && frame < stackend) {
++		/* if obj + len extends past the last frame, this
++		   check won't pass and the next frame will be 0,
++		   causing us to bail out and correctly report
++		   the copy as invalid
++		*/
++		if (obj + len <= frame)
++			return obj >= oldframe + 2 * sizeof(void *) ? 2 : -1;
++		oldframe = frame;
++		frame = *(const void * const *)frame;
++	}
++	return -1;
++#else
++	return 1;
++#endif
++}
++
++static __noreturn void pax_report_usercopy(const void *ptr, unsigned long len, bool to_user, const char *type)
++{
++	if (current->signal->curr_ip)
++		printk(KERN_ERR "PAX: From %pI4: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
++			&current->signal->curr_ip, to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
++	else
++		printk(KERN_ERR "PAX: kernel memory %s attempt detected %s %p (%s) (%lu bytes)\n",
++			to_user ? "leak" : "overwrite", to_user ? "from" : "to", ptr, type ? : "unknown", len);
++	dump_stack();
++	gr_handle_kernel_exploit();
++	do_group_exit(SIGKILL);
++}
++#endif
++
++#ifdef CONFIG_PAX_USERCOPY
++
++static inline bool check_kernel_text_object(unsigned long low, unsigned long high)
++{
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	unsigned long textlow = ktla_ktva((unsigned long)_stext);
++#ifdef CONFIG_MODULES
++	unsigned long texthigh = (unsigned long)MODULES_EXEC_VADDR;
++#else
++	unsigned long texthigh = ktla_ktva((unsigned long)_etext);
++#endif
++
++#else
++	unsigned long textlow = (unsigned long)_stext;
++	unsigned long texthigh = (unsigned long)_etext;
++
++#ifdef CONFIG_X86_64
++	/* check against linear mapping as well */
++	if (high > (unsigned long)__va(__pa(textlow)) &&
++	    low < (unsigned long)__va(__pa(texthigh)))
++		return true;
++#endif
++
++#endif
++
++	if (high <= textlow || low >= texthigh)
++		return false;
++	else
++		return true;
++}
++#endif
++
++void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size)
++{
++#ifdef CONFIG_PAX_USERCOPY
++	const char *type;
++#endif
++
++#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_X86_64)
++	unsigned long stackstart = (unsigned long)task_stack_page(current);
++	unsigned long currentsp = (unsigned long)&stackstart;
++	if (unlikely((currentsp < stackstart + 512 ||
++		     currentsp >= stackstart + THREAD_SIZE) && !in_interrupt()))
++		BUG();
++#endif
++
++#ifndef CONFIG_PAX_USERCOPY_DEBUG
++	if (const_size)
++		return;
++#endif
++
++#ifdef CONFIG_PAX_USERCOPY
++	if (!n)
++		return;
++
++	type = check_heap_object(ptr, n);
++	if (!type) {
++		int ret = check_stack_object(ptr, n);
++		if (ret == 1 || ret == 2)
++			return;
++		if (ret == 0) {
++			if (check_kernel_text_object((unsigned long)ptr, (unsigned long)ptr + n))
++				type = "<kernel text>";
++			else
++				return;
++		} else
++			type = "<process stack>";
++	}
++
++	pax_report_usercopy(ptr, n, to_user, type);
++#endif
++
++}
++EXPORT_SYMBOL(__check_object_size);
++
++#ifdef CONFIG_PAX_MEMORY_STACKLEAK
++void pax_track_stack(void)
++{
++	unsigned long sp = (unsigned long)&sp;
++	if (sp < current_thread_info()->lowest_stack &&
++	    sp >= (unsigned long)task_stack_page(current) + 2 * sizeof(unsigned long))
++		current_thread_info()->lowest_stack = sp;
++	if (unlikely((sp & ~(THREAD_SIZE - 1)) < (THREAD_SIZE/16)))
++		BUG();
++}
++EXPORT_SYMBOL(pax_track_stack);
++#endif
++
++#ifdef CONFIG_PAX_SIZE_OVERFLOW
++void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
++{
++	printk(KERN_ERR "PAX: size overflow detected in function %s %s:%u %s", func, file, line, ssa_name);
++	dump_stack();
++	do_group_exit(SIGKILL);
++}
++EXPORT_SYMBOL(report_size_overflow);
++#endif
+diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
+index 9f9992b..8b59411 100644
+--- a/fs/ext2/balloc.c
++++ b/fs/ext2/balloc.c
+@@ -1184,10 +1184,10 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
+ 
+ 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
+ 	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
+-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
++	if (free_blocks < root_blocks + 1 &&
+ 		!uid_eq(sbi->s_resuid, current_fsuid()) &&
+ 		(gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
+-		 !in_group_p (sbi->s_resgid))) {
++		 !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
+ 		return 0;
+ 	}
+ 	return 1;
+diff --git a/fs/ext2/super.c b/fs/ext2/super.c
+index 20d6697..f77da76 100644
+--- a/fs/ext2/super.c
++++ b/fs/ext2/super.c
+@@ -264,10 +264,8 @@ static int ext2_show_options(struct seq_file *seq, struct dentry *root)
+ #ifdef CONFIG_EXT2_FS_XATTR
+ 	if (test_opt(sb, XATTR_USER))
+ 		seq_puts(seq, ",user_xattr");
+-	if (!test_opt(sb, XATTR_USER) &&
+-	    (def_mount_opts & EXT2_DEFM_XATTR_USER)) {
++	if (!test_opt(sb, XATTR_USER))
+ 		seq_puts(seq, ",nouser_xattr");
+-	}
+ #endif
+ 
+ #ifdef CONFIG_EXT2_FS_POSIX_ACL
+@@ -841,8 +839,8 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
+ 	if (def_mount_opts & EXT2_DEFM_UID16)
+ 		set_opt(sbi->s_mount_opt, NO_UID32);
+ #ifdef CONFIG_EXT2_FS_XATTR
+-	if (def_mount_opts & EXT2_DEFM_XATTR_USER)
+-		set_opt(sbi->s_mount_opt, XATTR_USER);
++	/* always enable user xattrs */
++	set_opt(sbi->s_mount_opt, XATTR_USER);
+ #endif
+ #ifdef CONFIG_EXT2_FS_POSIX_ACL
+ 	if (def_mount_opts & EXT2_DEFM_ACL)
+diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
+index 9142614..97484fa 100644
+--- a/fs/ext2/xattr.c
++++ b/fs/ext2/xattr.c
+@@ -247,7 +247,7 @@ ext2_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
+ 	struct buffer_head *bh = NULL;
+ 	struct ext2_xattr_entry *entry;
+ 	char *end;
+-	size_t rest = buffer_size;
++	size_t rest = buffer_size, total_size = 0;
+ 	int error;
+ 
+ 	ea_idebug(inode, "buffer=%p, buffer_size=%ld",
+@@ -305,9 +305,10 @@ bad_block:	ext2_error(inode->i_sb, "ext2_xattr_list",
+ 				buffer += size;
+ 			}
+ 			rest -= size;
++			total_size += size;
+ 		}
+ 	}
+-	error = buffer_size - rest;  /* total size */
++	error = total_size;
+ 
+ cleanup:
+ 	brelse(bh);
+diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
+index 22548f5..41521d8 100644
+--- a/fs/ext3/balloc.c
++++ b/fs/ext3/balloc.c
+@@ -1438,10 +1438,10 @@ static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
+ 
+ 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
+ 	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
+-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
++	if (free_blocks < root_blocks + 1 &&
+ 		!use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
+ 		(gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
+-		 !in_group_p (sbi->s_resgid))) {
++		 !in_group_p (sbi->s_resgid)) && !capable_nolog(CAP_SYS_RESOURCE)) {
+ 		return 0;
+ 	}
+ 	return 1;
+diff --git a/fs/ext3/super.c b/fs/ext3/super.c
+index 0498390..df00300 100644
+--- a/fs/ext3/super.c
++++ b/fs/ext3/super.c
+@@ -649,10 +649,8 @@ static int ext3_show_options(struct seq_file *seq, struct dentry *root)
+ #ifdef CONFIG_EXT3_FS_XATTR
+ 	if (test_opt(sb, XATTR_USER))
+ 		seq_puts(seq, ",user_xattr");
+-	if (!test_opt(sb, XATTR_USER) &&
+-	    (def_mount_opts & EXT3_DEFM_XATTR_USER)) {
++	if (!test_opt(sb, XATTR_USER))
+ 		seq_puts(seq, ",nouser_xattr");
+-	}
+ #endif
+ #ifdef CONFIG_EXT3_FS_POSIX_ACL
+ 	if (test_opt(sb, POSIX_ACL))
+@@ -1749,8 +1747,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
+ 	if (def_mount_opts & EXT3_DEFM_UID16)
+ 		set_opt(sbi->s_mount_opt, NO_UID32);
+ #ifdef CONFIG_EXT3_FS_XATTR
+-	if (def_mount_opts & EXT3_DEFM_XATTR_USER)
+-		set_opt(sbi->s_mount_opt, XATTR_USER);
++	/* always enable user xattrs */
++	set_opt(sbi->s_mount_opt, XATTR_USER);
+ #endif
+ #ifdef CONFIG_EXT3_FS_POSIX_ACL
+ 	if (def_mount_opts & EXT3_DEFM_ACL)
+diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
+index c6874be..f8a6ae8 100644
+--- a/fs/ext3/xattr.c
++++ b/fs/ext3/xattr.c
+@@ -330,7 +330,7 @@ static int
+ ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
+ 			char *buffer, size_t buffer_size)
+ {
+-	size_t rest = buffer_size;
++	size_t rest = buffer_size, total_size = 0;
+ 
+ 	for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
+ 		const struct xattr_handler *handler =
+@@ -347,9 +347,10 @@ ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
+ 				buffer += size;
+ 			}
+ 			rest -= size;
++			total_size += size;
+ 		}
+ 	}
+-	return buffer_size - rest;
++	return total_size;
+ }
+ 
+ static int
+diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
+index 6ea7b14..8fa16d9 100644
+--- a/fs/ext4/balloc.c
++++ b/fs/ext4/balloc.c
+@@ -534,8 +534,8 @@ static int ext4_has_free_clusters(struct ext4_sb_info *sbi,
+ 	/* Hm, nope.  Are (enough) root reserved clusters available? */
+ 	if (uid_eq(sbi->s_resuid, current_fsuid()) ||
+ 	    (!gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) && in_group_p(sbi->s_resgid)) ||
+-	    capable(CAP_SYS_RESOURCE) ||
+-	    (flags & EXT4_MB_USE_ROOT_BLOCKS)) {
++	    (flags & EXT4_MB_USE_ROOT_BLOCKS) ||
++	    capable_nolog(CAP_SYS_RESOURCE)) {
+ 
+ 		if (free_clusters >= (nclusters + dirty_clusters +
+ 				      resv_clusters))
+diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
+index 2a6830a..d25d59c 100644
+--- a/fs/ext4/ext4.h
++++ b/fs/ext4/ext4.h
+@@ -1269,19 +1269,19 @@ struct ext4_sb_info {
+ 	unsigned long s_mb_last_start;
+ 
+ 	/* stats for buddy allocator */
+-	atomic_t s_bal_reqs;	/* number of reqs with len > 1 */
+-	atomic_t s_bal_success;	/* we found long enough chunks */
+-	atomic_t s_bal_allocated;	/* in blocks */
+-	atomic_t s_bal_ex_scanned;	/* total extents scanned */
+-	atomic_t s_bal_goals;	/* goal hits */
+-	atomic_t s_bal_breaks;	/* too long searches */
+-	atomic_t s_bal_2orders;	/* 2^order hits */
++	atomic_unchecked_t s_bal_reqs;	/* number of reqs with len > 1 */
++	atomic_unchecked_t s_bal_success;	/* we found long enough chunks */
++	atomic_unchecked_t s_bal_allocated;	/* in blocks */
++	atomic_unchecked_t s_bal_ex_scanned;	/* total extents scanned */
++	atomic_unchecked_t s_bal_goals;	/* goal hits */
++	atomic_unchecked_t s_bal_breaks;	/* too long searches */
++	atomic_unchecked_t s_bal_2orders;	/* 2^order hits */
+ 	spinlock_t s_bal_lock;
+ 	unsigned long s_mb_buddies_generated;
+ 	unsigned long long s_mb_generation_time;
+-	atomic_t s_mb_lost_chunks;
+-	atomic_t s_mb_preallocated;
+-	atomic_t s_mb_discarded;
++	atomic_unchecked_t s_mb_lost_chunks;
++	atomic_unchecked_t s_mb_preallocated;
++	atomic_unchecked_t s_mb_discarded;
+ 	atomic_t s_lock_busy;
+ 
+ 	/* locality groups */
+diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
+index e6574d7..c30cbe2 100644
+--- a/fs/ext4/indirect.c
++++ b/fs/ext4/indirect.c
+@@ -1345,8 +1345,8 @@ static int free_hole_blocks(handle_t *handle, struct inode *inode,
+ 		if (level == 0 ||
+ 		    (bh && all_zeroes((__le32 *)bh->b_data,
+ 				      (__le32 *)bh->b_data + addr_per_block))) {
+-			ext4_free_data(handle, inode, parent_bh, &blk, &blk+1);
+-			*i_data = 0;
++			ext4_free_data(handle, inode, parent_bh,
++				       i_data, i_data + 1);
+ 		}
+ 		brelse(bh);
+ 		bh = NULL;
+diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
+index 7620133..212880d 100644
+--- a/fs/ext4/mballoc.c
++++ b/fs/ext4/mballoc.c
+@@ -1884,7 +1884,7 @@ void ext4_mb_simple_scan_group(struct ext4_allocation_context *ac,
+ 		BUG_ON(ac->ac_b_ex.fe_len != ac->ac_g_ex.fe_len);
+ 
+ 		if (EXT4_SB(sb)->s_mb_stats)
+-			atomic_inc(&EXT4_SB(sb)->s_bal_2orders);
++			atomic_inc_unchecked(&EXT4_SB(sb)->s_bal_2orders);
+ 
+ 		break;
+ 	}
+@@ -2193,7 +2193,7 @@ repeat:
+ 			ac->ac_status = AC_STATUS_CONTINUE;
+ 			ac->ac_flags |= EXT4_MB_HINT_FIRST;
+ 			cr = 3;
+-			atomic_inc(&sbi->s_mb_lost_chunks);
++			atomic_inc_unchecked(&sbi->s_mb_lost_chunks);
+ 			goto repeat;
+ 		}
+ 	}
+@@ -2701,25 +2701,25 @@ int ext4_mb_release(struct super_block *sb)
+ 	if (sbi->s_mb_stats) {
+ 		ext4_msg(sb, KERN_INFO,
+ 		       "mballoc: %u blocks %u reqs (%u success)",
+-				atomic_read(&sbi->s_bal_allocated),
+-				atomic_read(&sbi->s_bal_reqs),
+-				atomic_read(&sbi->s_bal_success));
++				atomic_read_unchecked(&sbi->s_bal_allocated),
++				atomic_read_unchecked(&sbi->s_bal_reqs),
++				atomic_read_unchecked(&sbi->s_bal_success));
+ 		ext4_msg(sb, KERN_INFO,
+ 		      "mballoc: %u extents scanned, %u goal hits, "
+ 				"%u 2^N hits, %u breaks, %u lost",
+-				atomic_read(&sbi->s_bal_ex_scanned),
+-				atomic_read(&sbi->s_bal_goals),
+-				atomic_read(&sbi->s_bal_2orders),
+-				atomic_read(&sbi->s_bal_breaks),
+-				atomic_read(&sbi->s_mb_lost_chunks));
++				atomic_read_unchecked(&sbi->s_bal_ex_scanned),
++				atomic_read_unchecked(&sbi->s_bal_goals),
++				atomic_read_unchecked(&sbi->s_bal_2orders),
++				atomic_read_unchecked(&sbi->s_bal_breaks),
++				atomic_read_unchecked(&sbi->s_mb_lost_chunks));
+ 		ext4_msg(sb, KERN_INFO,
+ 		       "mballoc: %lu generated and it took %Lu",
+ 				sbi->s_mb_buddies_generated,
+ 				sbi->s_mb_generation_time);
+ 		ext4_msg(sb, KERN_INFO,
+ 		       "mballoc: %u preallocated, %u discarded",
+-				atomic_read(&sbi->s_mb_preallocated),
+-				atomic_read(&sbi->s_mb_discarded));
++				atomic_read_unchecked(&sbi->s_mb_preallocated),
++				atomic_read_unchecked(&sbi->s_mb_discarded));
+ 	}
+ 
+ 	free_percpu(sbi->s_locality_groups);
+@@ -3173,16 +3173,16 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
+ 	struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
+ 
+ 	if (sbi->s_mb_stats && ac->ac_g_ex.fe_len > 1) {
+-		atomic_inc(&sbi->s_bal_reqs);
+-		atomic_add(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
++		atomic_inc_unchecked(&sbi->s_bal_reqs);
++		atomic_add_unchecked(ac->ac_b_ex.fe_len, &sbi->s_bal_allocated);
+ 		if (ac->ac_b_ex.fe_len >= ac->ac_o_ex.fe_len)
+-			atomic_inc(&sbi->s_bal_success);
+-		atomic_add(ac->ac_found, &sbi->s_bal_ex_scanned);
++			atomic_inc_unchecked(&sbi->s_bal_success);
++		atomic_add_unchecked(ac->ac_found, &sbi->s_bal_ex_scanned);
+ 		if (ac->ac_g_ex.fe_start == ac->ac_b_ex.fe_start &&
+ 				ac->ac_g_ex.fe_group == ac->ac_b_ex.fe_group)
+-			atomic_inc(&sbi->s_bal_goals);
++			atomic_inc_unchecked(&sbi->s_bal_goals);
+ 		if (ac->ac_found > sbi->s_mb_max_to_scan)
+-			atomic_inc(&sbi->s_bal_breaks);
++			atomic_inc_unchecked(&sbi->s_bal_breaks);
+ 	}
+ 
+ 	if (ac->ac_op == EXT4_MB_HISTORY_ALLOC)
+@@ -3609,7 +3609,7 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
+ 	trace_ext4_mb_new_inode_pa(ac, pa);
+ 
+ 	ext4_mb_use_inode_pa(ac, pa);
+-	atomic_add(pa->pa_free, &sbi->s_mb_preallocated);
++	atomic_add_unchecked(pa->pa_free, &sbi->s_mb_preallocated);
+ 
+ 	ei = EXT4_I(ac->ac_inode);
+ 	grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
+@@ -3669,7 +3669,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
+ 	trace_ext4_mb_new_group_pa(ac, pa);
+ 
+ 	ext4_mb_use_group_pa(ac, pa);
+-	atomic_add(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
++	atomic_add_unchecked(pa->pa_free, &EXT4_SB(sb)->s_mb_preallocated);
+ 
+ 	grp = ext4_get_group_info(sb, ac->ac_b_ex.fe_group);
+ 	lg = ac->ac_lg;
+@@ -3758,7 +3758,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
+ 		 * from the bitmap and continue.
+ 		 */
+ 	}
+-	atomic_add(free, &sbi->s_mb_discarded);
++	atomic_add_unchecked(free, &sbi->s_mb_discarded);
+ 
+ 	return err;
+ }
+@@ -3776,7 +3776,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
+ 	ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
+ 	BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
+ 	mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
+-	atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
++	atomic_add_unchecked(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
+ 	trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
+ 
+ 	return 0;
+diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
+index 1268a1b..adf949f 100644
+--- a/fs/ext4/mmp.c
++++ b/fs/ext4/mmp.c
+@@ -111,7 +111,7 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh,
+ void __dump_mmp_msg(struct super_block *sb, struct mmp_struct *mmp,
+ 		    const char *function, unsigned int line, const char *msg)
+ {
+-	__ext4_warning(sb, function, line, msg);
++	__ext4_warning(sb, function, line, "%s", msg);
+ 	__ext4_warning(sb, function, line,
+ 		       "MMP failure info: last update time: %llu, last update "
+ 		       "node: %s, last update device: %s\n",
+diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
+index 2400ad1..0bc93ab 100644
+--- a/fs/ext4/resize.c
++++ b/fs/ext4/resize.c
+@@ -400,7 +400,7 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
+ 
+ 	ext4_debug("mark blocks [%llu/%u] used\n", block, count);
+ 	for (count2 = count; count > 0; count -= count2, block += count2) {
+-		ext4_fsblk_t start;
++		ext4_fsblk_t start, diff;
+ 		struct buffer_head *bh;
+ 		ext4_group_t group;
+ 		int err;
+@@ -409,10 +409,6 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
+ 		start = ext4_group_first_block_no(sb, group);
+ 		group -= flex_gd->groups[0].group;
+ 
+-		count2 = EXT4_BLOCKS_PER_GROUP(sb) - (block - start);
+-		if (count2 > count)
+-			count2 = count;
+-
+ 		if (flex_gd->bg_flags[group] & EXT4_BG_BLOCK_UNINIT) {
+ 			BUG_ON(flex_gd->count > 1);
+ 			continue;
+@@ -429,9 +425,15 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
+ 		err = ext4_journal_get_write_access(handle, bh);
+ 		if (err)
+ 			return err;
++
++		diff = block - start;
++		count2 = EXT4_BLOCKS_PER_GROUP(sb) - diff;
++		if (count2 > count)
++			count2 = count;
++
+ 		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
+-			   block - start, count2);
+-		ext4_set_bits(bh->b_data, block - start, count2);
++			   diff, count2);
++		ext4_set_bits(bh->b_data, diff, count2);
+ 
+ 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ 		if (unlikely(err))
+diff --git a/fs/ext4/super.c b/fs/ext4/super.c
+index 9fb3e6c..9a82508 100644
+--- a/fs/ext4/super.c
++++ b/fs/ext4/super.c
+@@ -1268,7 +1268,7 @@ static ext4_fsblk_t get_sb_block(void **data)
+ }
+ 
+ #define DEFAULT_JOURNAL_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
+-static char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
++static const char deprecated_msg[] = "Mount option \"%s\" will be removed by %s\n"
+ 	"Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
+ 
+ #ifdef CONFIG_QUOTA
+@@ -2442,7 +2442,7 @@ struct ext4_attr {
+ 		int offset;
+ 		int deprecated_val;
+ 	} u;
+-};
++} __do_const;
+ 
+ static int parse_strtoull(const char *buf,
+ 		unsigned long long max, unsigned long long *value)
+diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
+index 8825154..af51586 100644
+--- a/fs/ext4/xattr.c
++++ b/fs/ext4/xattr.c
+@@ -394,7 +394,7 @@ static int
+ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
+ 			char *buffer, size_t buffer_size)
+ {
+-	size_t rest = buffer_size;
++	size_t rest = buffer_size, total_size = 0;
+ 
+ 	for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
+ 		const struct xattr_handler *handler =
+@@ -411,9 +411,10 @@ ext4_xattr_list_entries(struct dentry *dentry, struct ext4_xattr_entry *entry,
+ 				buffer += size;
+ 			}
+ 			rest -= size;
++			total_size += size;
+ 		}
+ 	}
+-	return buffer_size - rest;
++	return total_size;
+ }
+ 
+ static int
+diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
+index 6df8d3d..b8b92c2 100644
+--- a/fs/fat/namei_vfat.c
++++ b/fs/fat/namei_vfat.c
+@@ -736,7 +736,12 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
+ 	}
+ 
+ 	alias = d_find_alias(inode);
+-	if (alias && !vfat_d_anon_disconn(alias)) {
++	/*
++	 * Checking "alias->d_parent == dentry->d_parent" to make sure
++	 * FS is not corrupted (especially double linked dir).
++	 */
++	if (alias && alias->d_parent == dentry->d_parent &&
++	    !vfat_d_anon_disconn(alias)) {
+ 		/*
+ 		 * This inode has non anonymous-DCACHE_DISCONNECTED
+ 		 * dentry. This means, the user did ->lookup() by an
+@@ -755,12 +760,9 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
+ 
+ out:
+ 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
+-	dentry->d_time = dentry->d_parent->d_inode->i_version;
+-	dentry = d_splice_alias(inode, dentry);
+-	if (dentry)
+-		dentry->d_time = dentry->d_parent->d_inode->i_version;
+-	return dentry;
+-
++	if (!inode)
++		dentry->d_time = dir->i_version;
++	return d_splice_alias(inode, dentry);
+ error:
+ 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
+ 	return ERR_PTR(err);
+@@ -793,7 +795,6 @@ static int vfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
+ 	inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
+ 	/* timestamp is already written, so mark_inode_dirty() is unneeded. */
+ 
+-	dentry->d_time = dentry->d_parent->d_inode->i_version;
+ 	d_instantiate(dentry, inode);
+ out:
+ 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
+@@ -824,6 +825,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
+ 	clear_nlink(inode);
+ 	inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
+ 	fat_detach(inode);
++	dentry->d_time = dir->i_version;
+ out:
+ 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
+ 
+@@ -849,6 +851,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
+ 	clear_nlink(inode);
+ 	inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
+ 	fat_detach(inode);
++	dentry->d_time = dir->i_version;
+ out:
+ 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
+ 
+@@ -889,7 +892,6 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+ 	inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
+ 	/* timestamp is already written, so mark_inode_dirty() is unneeded. */
+ 
+-	dentry->d_time = dentry->d_parent->d_inode->i_version;
+ 	d_instantiate(dentry, inode);
+ 
+ 	mutex_unlock(&MSDOS_SB(sb)->s_lock);
+diff --git a/fs/fcntl.c b/fs/fcntl.c
+index ef68665..5deacdc 100644
+--- a/fs/fcntl.c
++++ b/fs/fcntl.c
+@@ -106,6 +106,11 @@ int __f_setown(struct file *filp, struct pid *pid, enum pid_type type,
+ 	if (err)
+ 		return err;
+ 
++	if (gr_handle_chroot_fowner(pid, type))
++		return -ENOENT;
++	if (gr_check_protected_task_fowner(pid, type))
++		return -EACCES;
++
+ 	f_modown(filp, pid, type, force);
+ 	return 0;
+ }
+diff --git a/fs/fhandle.c b/fs/fhandle.c
+index d59712d..2281df9 100644
+--- a/fs/fhandle.c
++++ b/fs/fhandle.c
+@@ -8,6 +8,7 @@
+ #include <linux/fs_struct.h>
+ #include <linux/fsnotify.h>
+ #include <linux/personality.h>
++#include <linux/grsecurity.h>
+ #include <asm/uaccess.h>
+ #include "internal.h"
+ #include "mount.h"
+@@ -67,8 +68,7 @@ static long do_sys_name_to_handle(struct path *path,
+ 	} else
+ 		retval = 0;
+ 	/* copy the mount id */
+-	if (copy_to_user(mnt_id, &real_mount(path->mnt)->mnt_id,
+-			 sizeof(*mnt_id)) ||
++	if (put_user(real_mount(path->mnt)->mnt_id, mnt_id) ||
+ 	    copy_to_user(ufh, handle,
+ 			 sizeof(struct file_handle) + handle_bytes))
+ 		retval = -EFAULT;
+@@ -175,7 +175,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
+ 	 * the directory. Ideally we would like CAP_DAC_SEARCH.
+ 	 * But we don't have that
+ 	 */
+-	if (!capable(CAP_DAC_READ_SEARCH)) {
++	if (!capable(CAP_DAC_READ_SEARCH) || !gr_chroot_fhandle()) {
+ 		retval = -EPERM;
+ 		goto out_err;
+ 	}
+diff --git a/fs/file.c b/fs/file.c
+index eb56a13..ccee850 100644
+--- a/fs/file.c
++++ b/fs/file.c
+@@ -16,6 +16,7 @@
+ #include <linux/slab.h>
+ #include <linux/vmalloc.h>
+ #include <linux/file.h>
++#include <linux/security.h>
+ #include <linux/fdtable.h>
+ #include <linux/bitops.h>
+ #include <linux/interrupt.h>
+@@ -141,7 +142,7 @@ out:
+  * Return <0 error code on error; 1 on successful completion.
+  * The files->file_lock should be held on entry, and will be held on exit.
+  */
+-static int expand_fdtable(struct files_struct *files, int nr)
++static int expand_fdtable(struct files_struct *files, unsigned int nr)
+ 	__releases(files->file_lock)
+ 	__acquires(files->file_lock)
+ {
+@@ -186,7 +187,7 @@ static int expand_fdtable(struct files_struct *files, int nr)
+  * expanded and execution may have blocked.
+  * The files->file_lock should be held on entry, and will be held on exit.
+  */
+-static int expand_files(struct files_struct *files, int nr)
++static int expand_files(struct files_struct *files, unsigned int nr)
+ {
+ 	struct fdtable *fdt;
+ 
+@@ -807,6 +808,7 @@ int replace_fd(unsigned fd, struct file *file, unsigned flags)
+ 	if (!file)
+ 		return __close_fd(files, fd);
+ 
++	gr_learn_resource(current, RLIMIT_NOFILE, fd, 0);
+ 	if (fd >= rlimit(RLIMIT_NOFILE))
+ 		return -EBADF;
+ 
+@@ -833,6 +835,7 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
+ 	if (unlikely(oldfd == newfd))
+ 		return -EINVAL;
+ 
++	gr_learn_resource(current, RLIMIT_NOFILE, newfd, 0);
+ 	if (newfd >= rlimit(RLIMIT_NOFILE))
+ 		return -EBADF;
+ 
+@@ -888,6 +891,7 @@ SYSCALL_DEFINE1(dup, unsigned int, fildes)
+ int f_dupfd(unsigned int from, struct file *file, unsigned flags)
+ {
+ 	int err;
++	gr_learn_resource(current, RLIMIT_NOFILE, from, 0);
+ 	if (from >= rlimit(RLIMIT_NOFILE))
+ 		return -EINVAL;
+ 	err = alloc_fd(from, flags);
+diff --git a/fs/filesystems.c b/fs/filesystems.c
+index 92567d9..fcd8cbf 100644
+--- a/fs/filesystems.c
++++ b/fs/filesystems.c
+@@ -273,7 +273,11 @@ struct file_system_type *get_fs_type(const char *name)
+ 	int len = dot ? dot - name : strlen(name);
+ 
+ 	fs = __get_fs_type(name, len);
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++	if (!fs && (___request_module(true, "grsec_modharden_fs", "fs-%.*s", len, name) == 0))
++#else
+ 	if (!fs && (request_module("fs-%.*s", len, name) == 0))
++#endif
+ 		fs = __get_fs_type(name, len);
+ 
+ 	if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
+diff --git a/fs/fs_struct.c b/fs/fs_struct.c
+index 7dca743..1ff87ae 100644
+--- a/fs/fs_struct.c
++++ b/fs/fs_struct.c
+@@ -4,6 +4,7 @@
+ #include <linux/path.h>
+ #include <linux/slab.h>
+ #include <linux/fs_struct.h>
++#include <linux/grsecurity.h>
+ #include "internal.h"
+ 
+ /*
+@@ -15,14 +16,18 @@ void set_fs_root(struct fs_struct *fs, const struct path *path)
+ 	struct path old_root;
+ 
+ 	path_get(path);
++	gr_inc_chroot_refcnts(path->dentry, path->mnt);
+ 	spin_lock(&fs->lock);
+ 	write_seqcount_begin(&fs->seq);
+ 	old_root = fs->root;
+ 	fs->root = *path;
++	gr_set_chroot_entries(current, path);
+ 	write_seqcount_end(&fs->seq);
+ 	spin_unlock(&fs->lock);
+-	if (old_root.dentry)
++	if (old_root.dentry) {
++		gr_dec_chroot_refcnts(old_root.dentry, old_root.mnt);
+ 		path_put(&old_root);
++	}
+ }
+ 
+ /*
+@@ -67,6 +72,10 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
+ 			int hits = 0;
+ 			spin_lock(&fs->lock);
+ 			write_seqcount_begin(&fs->seq);
++			/* this root replacement is only done by pivot_root,
++			   leave grsec's chroot tagging alone for this task
++			   so that a pivoted root isn't treated as a chroot
++			*/
+ 			hits += replace_path(&fs->root, old_root, new_root);
+ 			hits += replace_path(&fs->pwd, old_root, new_root);
+ 			write_seqcount_end(&fs->seq);
+@@ -85,6 +94,7 @@ void chroot_fs_refs(const struct path *old_root, const struct path *new_root)
+ 
+ void free_fs_struct(struct fs_struct *fs)
+ {
++	gr_dec_chroot_refcnts(fs->root.dentry, fs->root.mnt);
+ 	path_put(&fs->root);
+ 	path_put(&fs->pwd);
+ 	kmem_cache_free(fs_cachep, fs);
+@@ -99,7 +109,8 @@ void exit_fs(struct task_struct *tsk)
+ 		task_lock(tsk);
+ 		spin_lock(&fs->lock);
+ 		tsk->fs = NULL;
+-		kill = !--fs->users;
++		gr_clear_chroot_entries(tsk);
++		kill = !atomic_dec_return(&fs->users);
+ 		spin_unlock(&fs->lock);
+ 		task_unlock(tsk);
+ 		if (kill)
+@@ -112,7 +123,7 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
+ 	struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL);
+ 	/* We don't need to lock fs - think why ;-) */
+ 	if (fs) {
+-		fs->users = 1;
++		atomic_set(&fs->users, 1);
+ 		fs->in_exec = 0;
+ 		spin_lock_init(&fs->lock);
+ 		seqcount_init(&fs->seq);
+@@ -121,9 +132,13 @@ struct fs_struct *copy_fs_struct(struct fs_struct *old)
+ 		spin_lock(&old->lock);
+ 		fs->root = old->root;
+ 		path_get(&fs->root);
++		/* instead of calling gr_set_chroot_entries here,
++		   we call it from every caller of this function
++		*/
+ 		fs->pwd = old->pwd;
+ 		path_get(&fs->pwd);
+ 		spin_unlock(&old->lock);
++		gr_inc_chroot_refcnts(fs->root.dentry, fs->root.mnt);
+ 	}
+ 	return fs;
+ }
+@@ -139,8 +154,9 @@ int unshare_fs_struct(void)
+ 
+ 	task_lock(current);
+ 	spin_lock(&fs->lock);
+-	kill = !--fs->users;
++	kill = !atomic_dec_return(&fs->users);
+ 	current->fs = new_fs;
++	gr_set_chroot_entries(current, &new_fs->root);
+ 	spin_unlock(&fs->lock);
+ 	task_unlock(current);
+ 
+@@ -153,13 +169,13 @@ EXPORT_SYMBOL_GPL(unshare_fs_struct);
+ 
+ int current_umask(void)
+ {
+-	return current->fs->umask;
++	return current->fs->umask | gr_acl_umask();
+ }
+ EXPORT_SYMBOL(current_umask);
+ 
+ /* to be mentioned only in INIT_TASK */
+ struct fs_struct init_fs = {
+-	.users		= 1,
++	.users		= ATOMIC_INIT(1),
+ 	.lock		= __SPIN_LOCK_UNLOCKED(init_fs.lock),
+ 	.seq		= SEQCNT_ZERO(init_fs.seq),
+ 	.umask		= 0022,
+diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
+index 29d7feb..303644d 100644
+--- a/fs/fscache/cookie.c
++++ b/fs/fscache/cookie.c
+@@ -19,7 +19,7 @@
+ 
+ struct kmem_cache *fscache_cookie_jar;
+ 
+-static atomic_t fscache_object_debug_id = ATOMIC_INIT(0);
++static atomic_unchecked_t fscache_object_debug_id = ATOMIC_INIT(0);
+ 
+ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie);
+ static int fscache_alloc_object(struct fscache_cache *cache,
+@@ -69,11 +69,11 @@ struct fscache_cookie *__fscache_acquire_cookie(
+ 	       parent ? (char *) parent->def->name : "<no-parent>",
+ 	       def->name, netfs_data, enable);
+ 
+-	fscache_stat(&fscache_n_acquires);
++	fscache_stat_unchecked(&fscache_n_acquires);
+ 
+ 	/* if there's no parent cookie, then we don't create one here either */
+ 	if (!parent) {
+-		fscache_stat(&fscache_n_acquires_null);
++		fscache_stat_unchecked(&fscache_n_acquires_null);
+ 		_leave(" [no parent]");
+ 		return NULL;
+ 	}
+@@ -88,7 +88,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
+ 	/* allocate and initialise a cookie */
+ 	cookie = kmem_cache_alloc(fscache_cookie_jar, GFP_KERNEL);
+ 	if (!cookie) {
+-		fscache_stat(&fscache_n_acquires_oom);
++		fscache_stat_unchecked(&fscache_n_acquires_oom);
+ 		_leave(" [ENOMEM]");
+ 		return NULL;
+ 	}
+@@ -115,13 +115,13 @@ struct fscache_cookie *__fscache_acquire_cookie(
+ 
+ 	switch (cookie->def->type) {
+ 	case FSCACHE_COOKIE_TYPE_INDEX:
+-		fscache_stat(&fscache_n_cookie_index);
++		fscache_stat_unchecked(&fscache_n_cookie_index);
+ 		break;
+ 	case FSCACHE_COOKIE_TYPE_DATAFILE:
+-		fscache_stat(&fscache_n_cookie_data);
++		fscache_stat_unchecked(&fscache_n_cookie_data);
+ 		break;
+ 	default:
+-		fscache_stat(&fscache_n_cookie_special);
++		fscache_stat_unchecked(&fscache_n_cookie_special);
+ 		break;
+ 	}
+ 
+@@ -135,7 +135,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
+ 			} else {
+ 				atomic_dec(&parent->n_children);
+ 				__fscache_cookie_put(cookie);
+-				fscache_stat(&fscache_n_acquires_nobufs);
++				fscache_stat_unchecked(&fscache_n_acquires_nobufs);
+ 				_leave(" = NULL");
+ 				return NULL;
+ 			}
+@@ -144,7 +144,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
+ 		}
+ 	}
+ 
+-	fscache_stat(&fscache_n_acquires_ok);
++	fscache_stat_unchecked(&fscache_n_acquires_ok);
+ 	_leave(" = %p", cookie);
+ 	return cookie;
+ }
+@@ -213,7 +213,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
+ 	cache = fscache_select_cache_for_object(cookie->parent);
+ 	if (!cache) {
+ 		up_read(&fscache_addremove_sem);
+-		fscache_stat(&fscache_n_acquires_no_cache);
++		fscache_stat_unchecked(&fscache_n_acquires_no_cache);
+ 		_leave(" = -ENOMEDIUM [no cache]");
+ 		return -ENOMEDIUM;
+ 	}
+@@ -297,14 +297,14 @@ static int fscache_alloc_object(struct fscache_cache *cache,
+ 	object = cache->ops->alloc_object(cache, cookie);
+ 	fscache_stat_d(&fscache_n_cop_alloc_object);
+ 	if (IS_ERR(object)) {
+-		fscache_stat(&fscache_n_object_no_alloc);
++		fscache_stat_unchecked(&fscache_n_object_no_alloc);
+ 		ret = PTR_ERR(object);
+ 		goto error;
+ 	}
+ 
+-	fscache_stat(&fscache_n_object_alloc);
++	fscache_stat_unchecked(&fscache_n_object_alloc);
+ 
+-	object->debug_id = atomic_inc_return(&fscache_object_debug_id);
++	object->debug_id = atomic_inc_return_unchecked(&fscache_object_debug_id);
+ 
+ 	_debug("ALLOC OBJ%x: %s {%lx}",
+ 	       object->debug_id, cookie->def->name, object->events);
+@@ -418,7 +418,7 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
+ 
+ 	_enter("{%s}", cookie->def->name);
+ 
+-	fscache_stat(&fscache_n_invalidates);
++	fscache_stat_unchecked(&fscache_n_invalidates);
+ 
+ 	/* Only permit invalidation of data files.  Invalidating an index will
+ 	 * require the caller to release all its attachments to the tree rooted
+@@ -477,10 +477,10 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
+ {
+ 	struct fscache_object *object;
+ 
+-	fscache_stat(&fscache_n_updates);
++	fscache_stat_unchecked(&fscache_n_updates);
+ 
+ 	if (!cookie) {
+-		fscache_stat(&fscache_n_updates_null);
++		fscache_stat_unchecked(&fscache_n_updates_null);
+ 		_leave(" [no cookie]");
+ 		return;
+ 	}
+@@ -581,12 +581,12 @@ EXPORT_SYMBOL(__fscache_disable_cookie);
+  */
+ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
+ {
+-	fscache_stat(&fscache_n_relinquishes);
++	fscache_stat_unchecked(&fscache_n_relinquishes);
+ 	if (retire)
+-		fscache_stat(&fscache_n_relinquishes_retire);
++		fscache_stat_unchecked(&fscache_n_relinquishes_retire);
+ 
+ 	if (!cookie) {
+-		fscache_stat(&fscache_n_relinquishes_null);
++		fscache_stat_unchecked(&fscache_n_relinquishes_null);
+ 		_leave(" [no cookie]");
+ 		return;
+ 	}
+@@ -687,7 +687,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
+ 	if (test_bit(FSCACHE_IOERROR, &object->cache->flags))
+ 		goto inconsistent;
+ 
+-	op->debug_id = atomic_inc_return(&fscache_op_debug_id);
++	op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
+ 
+ 	__fscache_use_cookie(cookie);
+ 	if (fscache_submit_op(object, op) < 0)
+diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h
+index 4226f66..0fb3f45 100644
+--- a/fs/fscache/internal.h
++++ b/fs/fscache/internal.h
+@@ -133,8 +133,8 @@ extern void fscache_operation_gc(struct work_struct *);
+ extern int fscache_wait_for_deferred_lookup(struct fscache_cookie *);
+ extern int fscache_wait_for_operation_activation(struct fscache_object *,
+ 						 struct fscache_operation *,
+-						 atomic_t *,
+-						 atomic_t *,
++						 atomic_unchecked_t *,
++						 atomic_unchecked_t *,
+ 						 void (*)(struct fscache_operation *));
+ extern void fscache_invalidate_writes(struct fscache_cookie *);
+ 
+@@ -153,101 +153,101 @@ extern void fscache_proc_cleanup(void);
+  * stats.c
+  */
+ #ifdef CONFIG_FSCACHE_STATS
+-extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
+-extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
++extern atomic_unchecked_t fscache_n_ops_processed[FSCACHE_MAX_THREADS];
++extern atomic_unchecked_t fscache_n_objs_processed[FSCACHE_MAX_THREADS];
+ 
+-extern atomic_t fscache_n_op_pend;
+-extern atomic_t fscache_n_op_run;
+-extern atomic_t fscache_n_op_enqueue;
+-extern atomic_t fscache_n_op_deferred_release;
+-extern atomic_t fscache_n_op_release;
+-extern atomic_t fscache_n_op_gc;
+-extern atomic_t fscache_n_op_cancelled;
+-extern atomic_t fscache_n_op_rejected;
++extern atomic_unchecked_t fscache_n_op_pend;
++extern atomic_unchecked_t fscache_n_op_run;
++extern atomic_unchecked_t fscache_n_op_enqueue;
++extern atomic_unchecked_t fscache_n_op_deferred_release;
++extern atomic_unchecked_t fscache_n_op_release;
++extern atomic_unchecked_t fscache_n_op_gc;
++extern atomic_unchecked_t fscache_n_op_cancelled;
++extern atomic_unchecked_t fscache_n_op_rejected;
+ 
+-extern atomic_t fscache_n_attr_changed;
+-extern atomic_t fscache_n_attr_changed_ok;
+-extern atomic_t fscache_n_attr_changed_nobufs;
+-extern atomic_t fscache_n_attr_changed_nomem;
+-extern atomic_t fscache_n_attr_changed_calls;
++extern atomic_unchecked_t fscache_n_attr_changed;
++extern atomic_unchecked_t fscache_n_attr_changed_ok;
++extern atomic_unchecked_t fscache_n_attr_changed_nobufs;
++extern atomic_unchecked_t fscache_n_attr_changed_nomem;
++extern atomic_unchecked_t fscache_n_attr_changed_calls;
+ 
+-extern atomic_t fscache_n_allocs;
+-extern atomic_t fscache_n_allocs_ok;
+-extern atomic_t fscache_n_allocs_wait;
+-extern atomic_t fscache_n_allocs_nobufs;
+-extern atomic_t fscache_n_allocs_intr;
+-extern atomic_t fscache_n_allocs_object_dead;
+-extern atomic_t fscache_n_alloc_ops;
+-extern atomic_t fscache_n_alloc_op_waits;
++extern atomic_unchecked_t fscache_n_allocs;
++extern atomic_unchecked_t fscache_n_allocs_ok;
++extern atomic_unchecked_t fscache_n_allocs_wait;
++extern atomic_unchecked_t fscache_n_allocs_nobufs;
++extern atomic_unchecked_t fscache_n_allocs_intr;
++extern atomic_unchecked_t fscache_n_allocs_object_dead;
++extern atomic_unchecked_t fscache_n_alloc_ops;
++extern atomic_unchecked_t fscache_n_alloc_op_waits;
+ 
+-extern atomic_t fscache_n_retrievals;
+-extern atomic_t fscache_n_retrievals_ok;
+-extern atomic_t fscache_n_retrievals_wait;
+-extern atomic_t fscache_n_retrievals_nodata;
+-extern atomic_t fscache_n_retrievals_nobufs;
+-extern atomic_t fscache_n_retrievals_intr;
+-extern atomic_t fscache_n_retrievals_nomem;
+-extern atomic_t fscache_n_retrievals_object_dead;
+-extern atomic_t fscache_n_retrieval_ops;
+-extern atomic_t fscache_n_retrieval_op_waits;
++extern atomic_unchecked_t fscache_n_retrievals;
++extern atomic_unchecked_t fscache_n_retrievals_ok;
++extern atomic_unchecked_t fscache_n_retrievals_wait;
++extern atomic_unchecked_t fscache_n_retrievals_nodata;
++extern atomic_unchecked_t fscache_n_retrievals_nobufs;
++extern atomic_unchecked_t fscache_n_retrievals_intr;
++extern atomic_unchecked_t fscache_n_retrievals_nomem;
++extern atomic_unchecked_t fscache_n_retrievals_object_dead;
++extern atomic_unchecked_t fscache_n_retrieval_ops;
++extern atomic_unchecked_t fscache_n_retrieval_op_waits;
+ 
+-extern atomic_t fscache_n_stores;
+-extern atomic_t fscache_n_stores_ok;
+-extern atomic_t fscache_n_stores_again;
+-extern atomic_t fscache_n_stores_nobufs;
+-extern atomic_t fscache_n_stores_oom;
+-extern atomic_t fscache_n_store_ops;
+-extern atomic_t fscache_n_store_calls;
+-extern atomic_t fscache_n_store_pages;
+-extern atomic_t fscache_n_store_radix_deletes;
+-extern atomic_t fscache_n_store_pages_over_limit;
++extern atomic_unchecked_t fscache_n_stores;
++extern atomic_unchecked_t fscache_n_stores_ok;
++extern atomic_unchecked_t fscache_n_stores_again;
++extern atomic_unchecked_t fscache_n_stores_nobufs;
++extern atomic_unchecked_t fscache_n_stores_oom;
++extern atomic_unchecked_t fscache_n_store_ops;
++extern atomic_unchecked_t fscache_n_store_calls;
++extern atomic_unchecked_t fscache_n_store_pages;
++extern atomic_unchecked_t fscache_n_store_radix_deletes;
++extern atomic_unchecked_t fscache_n_store_pages_over_limit;
+ 
+-extern atomic_t fscache_n_store_vmscan_not_storing;
+-extern atomic_t fscache_n_store_vmscan_gone;
+-extern atomic_t fscache_n_store_vmscan_busy;
+-extern atomic_t fscache_n_store_vmscan_cancelled;
+-extern atomic_t fscache_n_store_vmscan_wait;
++extern atomic_unchecked_t fscache_n_store_vmscan_not_storing;
++extern atomic_unchecked_t fscache_n_store_vmscan_gone;
++extern atomic_unchecked_t fscache_n_store_vmscan_busy;
++extern atomic_unchecked_t fscache_n_store_vmscan_cancelled;
++extern atomic_unchecked_t fscache_n_store_vmscan_wait;
+ 
+-extern atomic_t fscache_n_marks;
+-extern atomic_t fscache_n_uncaches;
++extern atomic_unchecked_t fscache_n_marks;
++extern atomic_unchecked_t fscache_n_uncaches;
+ 
+-extern atomic_t fscache_n_acquires;
+-extern atomic_t fscache_n_acquires_null;
+-extern atomic_t fscache_n_acquires_no_cache;
+-extern atomic_t fscache_n_acquires_ok;
+-extern atomic_t fscache_n_acquires_nobufs;
+-extern atomic_t fscache_n_acquires_oom;
++extern atomic_unchecked_t fscache_n_acquires;
++extern atomic_unchecked_t fscache_n_acquires_null;
++extern atomic_unchecked_t fscache_n_acquires_no_cache;
++extern atomic_unchecked_t fscache_n_acquires_ok;
++extern atomic_unchecked_t fscache_n_acquires_nobufs;
++extern atomic_unchecked_t fscache_n_acquires_oom;
+ 
+-extern atomic_t fscache_n_invalidates;
+-extern atomic_t fscache_n_invalidates_run;
++extern atomic_unchecked_t fscache_n_invalidates;
++extern atomic_unchecked_t fscache_n_invalidates_run;
+ 
+-extern atomic_t fscache_n_updates;
+-extern atomic_t fscache_n_updates_null;
+-extern atomic_t fscache_n_updates_run;
++extern atomic_unchecked_t fscache_n_updates;
++extern atomic_unchecked_t fscache_n_updates_null;
++extern atomic_unchecked_t fscache_n_updates_run;
+ 
+-extern atomic_t fscache_n_relinquishes;
+-extern atomic_t fscache_n_relinquishes_null;
+-extern atomic_t fscache_n_relinquishes_waitcrt;
+-extern atomic_t fscache_n_relinquishes_retire;
++extern atomic_unchecked_t fscache_n_relinquishes;
++extern atomic_unchecked_t fscache_n_relinquishes_null;
++extern atomic_unchecked_t fscache_n_relinquishes_waitcrt;
++extern atomic_unchecked_t fscache_n_relinquishes_retire;
+ 
+-extern atomic_t fscache_n_cookie_index;
+-extern atomic_t fscache_n_cookie_data;
+-extern atomic_t fscache_n_cookie_special;
++extern atomic_unchecked_t fscache_n_cookie_index;
++extern atomic_unchecked_t fscache_n_cookie_data;
++extern atomic_unchecked_t fscache_n_cookie_special;
+ 
+-extern atomic_t fscache_n_object_alloc;
+-extern atomic_t fscache_n_object_no_alloc;
+-extern atomic_t fscache_n_object_lookups;
+-extern atomic_t fscache_n_object_lookups_negative;
+-extern atomic_t fscache_n_object_lookups_positive;
+-extern atomic_t fscache_n_object_lookups_timed_out;
+-extern atomic_t fscache_n_object_created;
+-extern atomic_t fscache_n_object_avail;
+-extern atomic_t fscache_n_object_dead;
++extern atomic_unchecked_t fscache_n_object_alloc;
++extern atomic_unchecked_t fscache_n_object_no_alloc;
++extern atomic_unchecked_t fscache_n_object_lookups;
++extern atomic_unchecked_t fscache_n_object_lookups_negative;
++extern atomic_unchecked_t fscache_n_object_lookups_positive;
++extern atomic_unchecked_t fscache_n_object_lookups_timed_out;
++extern atomic_unchecked_t fscache_n_object_created;
++extern atomic_unchecked_t fscache_n_object_avail;
++extern atomic_unchecked_t fscache_n_object_dead;
+ 
+-extern atomic_t fscache_n_checkaux_none;
+-extern atomic_t fscache_n_checkaux_okay;
+-extern atomic_t fscache_n_checkaux_update;
+-extern atomic_t fscache_n_checkaux_obsolete;
++extern atomic_unchecked_t fscache_n_checkaux_none;
++extern atomic_unchecked_t fscache_n_checkaux_okay;
++extern atomic_unchecked_t fscache_n_checkaux_update;
++extern atomic_unchecked_t fscache_n_checkaux_obsolete;
+ 
+ extern atomic_t fscache_n_cop_alloc_object;
+ extern atomic_t fscache_n_cop_lookup_object;
+@@ -272,6 +272,11 @@ static inline void fscache_stat(atomic_t *stat)
+ 	atomic_inc(stat);
+ }
+ 
++static inline void fscache_stat_unchecked(atomic_unchecked_t *stat)
++{
++	atomic_inc_unchecked(stat);
++}
++
+ static inline void fscache_stat_d(atomic_t *stat)
+ {
+ 	atomic_dec(stat);
+@@ -284,6 +289,7 @@ extern const struct file_operations fscache_stats_fops;
+ 
+ #define __fscache_stat(stat) (NULL)
+ #define fscache_stat(stat) do {} while (0)
++#define fscache_stat_unchecked(stat) do {} while (0)
+ #define fscache_stat_d(stat) do {} while (0)
+ #endif
+ 
+diff --git a/fs/fscache/object.c b/fs/fscache/object.c
+index d3b4539..ed0c659 100644
+--- a/fs/fscache/object.c
++++ b/fs/fscache/object.c
+@@ -454,7 +454,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
+ 	_debug("LOOKUP \"%s\" in \"%s\"",
+ 	       cookie->def->name, object->cache->tag->name);
+ 
+-	fscache_stat(&fscache_n_object_lookups);
++	fscache_stat_unchecked(&fscache_n_object_lookups);
+ 	fscache_stat(&fscache_n_cop_lookup_object);
+ 	ret = object->cache->ops->lookup_object(object);
+ 	fscache_stat_d(&fscache_n_cop_lookup_object);
+@@ -464,7 +464,7 @@ static const struct fscache_state *fscache_look_up_object(struct fscache_object
+ 	if (ret == -ETIMEDOUT) {
+ 		/* probably stuck behind another object, so move this one to
+ 		 * the back of the queue */
+-		fscache_stat(&fscache_n_object_lookups_timed_out);
++		fscache_stat_unchecked(&fscache_n_object_lookups_timed_out);
+ 		_leave(" [timeout]");
+ 		return NO_TRANSIT;
+ 	}
+@@ -492,7 +492,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
+ 	_enter("{OBJ%x,%s}", object->debug_id, object->state->name);
+ 
+ 	if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
+-		fscache_stat(&fscache_n_object_lookups_negative);
++		fscache_stat_unchecked(&fscache_n_object_lookups_negative);
+ 
+ 		/* Allow write requests to begin stacking up and read requests to begin
+ 		 * returning ENODATA.
+@@ -527,7 +527,7 @@ void fscache_obtained_object(struct fscache_object *object)
+ 	/* if we were still looking up, then we must have a positive lookup
+ 	 * result, in which case there may be data available */
+ 	if (!test_and_set_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags)) {
+-		fscache_stat(&fscache_n_object_lookups_positive);
++		fscache_stat_unchecked(&fscache_n_object_lookups_positive);
+ 
+ 		/* We do (presumably) have data */
+ 		clear_bit_unlock(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
+@@ -539,7 +539,7 @@ void fscache_obtained_object(struct fscache_object *object)
+ 		clear_bit_unlock(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
+ 		wake_up_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP);
+ 	} else {
+-		fscache_stat(&fscache_n_object_created);
++		fscache_stat_unchecked(&fscache_n_object_created);
+ 	}
+ 
+ 	set_bit(FSCACHE_OBJECT_IS_AVAILABLE, &object->flags);
+@@ -575,7 +575,7 @@ static const struct fscache_state *fscache_object_available(struct fscache_objec
+ 	fscache_stat_d(&fscache_n_cop_lookup_complete);
+ 
+ 	fscache_hist(fscache_obj_instantiate_histogram, object->lookup_jif);
+-	fscache_stat(&fscache_n_object_avail);
++	fscache_stat_unchecked(&fscache_n_object_avail);
+ 
+ 	_leave("");
+ 	return transit_to(JUMPSTART_DEPS);
+@@ -722,7 +722,7 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
+ 
+ 	/* this just shifts the object release to the work processor */
+ 	fscache_put_object(object);
+-	fscache_stat(&fscache_n_object_dead);
++	fscache_stat_unchecked(&fscache_n_object_dead);
+ 
+ 	_leave("");
+ 	return transit_to(OBJECT_DEAD);
+@@ -887,7 +887,7 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
+ 	enum fscache_checkaux result;
+ 
+ 	if (!object->cookie->def->check_aux) {
+-		fscache_stat(&fscache_n_checkaux_none);
++		fscache_stat_unchecked(&fscache_n_checkaux_none);
+ 		return FSCACHE_CHECKAUX_OKAY;
+ 	}
+ 
+@@ -896,17 +896,17 @@ enum fscache_checkaux fscache_check_aux(struct fscache_object *object,
+ 	switch (result) {
+ 		/* entry okay as is */
+ 	case FSCACHE_CHECKAUX_OKAY:
+-		fscache_stat(&fscache_n_checkaux_okay);
++		fscache_stat_unchecked(&fscache_n_checkaux_okay);
+ 		break;
+ 
+ 		/* entry requires update */
+ 	case FSCACHE_CHECKAUX_NEEDS_UPDATE:
+-		fscache_stat(&fscache_n_checkaux_update);
++		fscache_stat_unchecked(&fscache_n_checkaux_update);
+ 		break;
+ 
+ 		/* entry requires deletion */
+ 	case FSCACHE_CHECKAUX_OBSOLETE:
+-		fscache_stat(&fscache_n_checkaux_obsolete);
++		fscache_stat_unchecked(&fscache_n_checkaux_obsolete);
+ 		break;
+ 
+ 	default:
+@@ -992,7 +992,7 @@ static const struct fscache_state *fscache_invalidate_object(struct fscache_obje
+ {
+ 	const struct fscache_state *s;
+ 
+-	fscache_stat(&fscache_n_invalidates_run);
++	fscache_stat_unchecked(&fscache_n_invalidates_run);
+ 	fscache_stat(&fscache_n_cop_invalidate_object);
+ 	s = _fscache_invalidate_object(object, event);
+ 	fscache_stat_d(&fscache_n_cop_invalidate_object);
+@@ -1007,7 +1007,7 @@ static const struct fscache_state *fscache_update_object(struct fscache_object *
+ {
+ 	_enter("{OBJ%x},%d", object->debug_id, event);
+ 
+-	fscache_stat(&fscache_n_updates_run);
++	fscache_stat_unchecked(&fscache_n_updates_run);
+ 	fscache_stat(&fscache_n_cop_update_object);
+ 	object->cache->ops->update_object(object);
+ 	fscache_stat_d(&fscache_n_cop_update_object);
+diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
+index 318071a..379938b 100644
+--- a/fs/fscache/operation.c
++++ b/fs/fscache/operation.c
+@@ -17,7 +17,7 @@
+ #include <linux/slab.h>
+ #include "internal.h"
+ 
+-atomic_t fscache_op_debug_id;
++atomic_unchecked_t fscache_op_debug_id;
+ EXPORT_SYMBOL(fscache_op_debug_id);
+ 
+ /**
+@@ -39,7 +39,7 @@ void fscache_enqueue_operation(struct fscache_operation *op)
+ 	ASSERTCMP(atomic_read(&op->usage), >, 0);
+ 	ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
+ 
+-	fscache_stat(&fscache_n_op_enqueue);
++	fscache_stat_unchecked(&fscache_n_op_enqueue);
+ 	switch (op->flags & FSCACHE_OP_TYPE) {
+ 	case FSCACHE_OP_ASYNC:
+ 		_debug("queue async");
+@@ -73,7 +73,7 @@ static void fscache_run_op(struct fscache_object *object,
+ 		wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
+ 	if (op->processor)
+ 		fscache_enqueue_operation(op);
+-	fscache_stat(&fscache_n_op_run);
++	fscache_stat_unchecked(&fscache_n_op_run);
+ }
+ 
+ /*
+@@ -105,11 +105,11 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
+ 		if (object->n_in_progress > 0) {
+ 			atomic_inc(&op->usage);
+ 			list_add_tail(&op->pend_link, &object->pending_ops);
+-			fscache_stat(&fscache_n_op_pend);
++			fscache_stat_unchecked(&fscache_n_op_pend);
+ 		} else if (!list_empty(&object->pending_ops)) {
+ 			atomic_inc(&op->usage);
+ 			list_add_tail(&op->pend_link, &object->pending_ops);
+-			fscache_stat(&fscache_n_op_pend);
++			fscache_stat_unchecked(&fscache_n_op_pend);
+ 			fscache_start_operations(object);
+ 		} else {
+ 			ASSERTCMP(object->n_in_progress, ==, 0);
+@@ -125,7 +125,7 @@ int fscache_submit_exclusive_op(struct fscache_object *object,
+ 		object->n_exclusive++;	/* reads and writes must wait */
+ 		atomic_inc(&op->usage);
+ 		list_add_tail(&op->pend_link, &object->pending_ops);
+-		fscache_stat(&fscache_n_op_pend);
++		fscache_stat_unchecked(&fscache_n_op_pend);
+ 		ret = 0;
+ 	} else {
+ 		/* If we're in any other state, there must have been an I/O
+@@ -212,11 +212,11 @@ int fscache_submit_op(struct fscache_object *object,
+ 		if (object->n_exclusive > 0) {
+ 			atomic_inc(&op->usage);
+ 			list_add_tail(&op->pend_link, &object->pending_ops);
+-			fscache_stat(&fscache_n_op_pend);
++			fscache_stat_unchecked(&fscache_n_op_pend);
+ 		} else if (!list_empty(&object->pending_ops)) {
+ 			atomic_inc(&op->usage);
+ 			list_add_tail(&op->pend_link, &object->pending_ops);
+-			fscache_stat(&fscache_n_op_pend);
++			fscache_stat_unchecked(&fscache_n_op_pend);
+ 			fscache_start_operations(object);
+ 		} else {
+ 			ASSERTCMP(object->n_exclusive, ==, 0);
+@@ -228,10 +228,10 @@ int fscache_submit_op(struct fscache_object *object,
+ 		object->n_ops++;
+ 		atomic_inc(&op->usage);
+ 		list_add_tail(&op->pend_link, &object->pending_ops);
+-		fscache_stat(&fscache_n_op_pend);
++		fscache_stat_unchecked(&fscache_n_op_pend);
+ 		ret = 0;
+ 	} else if (fscache_object_is_dying(object)) {
+-		fscache_stat(&fscache_n_op_rejected);
++		fscache_stat_unchecked(&fscache_n_op_rejected);
+ 		op->state = FSCACHE_OP_ST_CANCELLED;
+ 		ret = -ENOBUFS;
+ 	} else if (!test_bit(FSCACHE_IOERROR, &object->cache->flags)) {
+@@ -310,7 +310,7 @@ int fscache_cancel_op(struct fscache_operation *op,
+ 	ret = -EBUSY;
+ 	if (op->state == FSCACHE_OP_ST_PENDING) {
+ 		ASSERT(!list_empty(&op->pend_link));
+-		fscache_stat(&fscache_n_op_cancelled);
++		fscache_stat_unchecked(&fscache_n_op_cancelled);
+ 		list_del_init(&op->pend_link);
+ 		if (do_cancel)
+ 			do_cancel(op);
+@@ -342,7 +342,7 @@ void fscache_cancel_all_ops(struct fscache_object *object)
+ 	while (!list_empty(&object->pending_ops)) {
+ 		op = list_entry(object->pending_ops.next,
+ 				struct fscache_operation, pend_link);
+-		fscache_stat(&fscache_n_op_cancelled);
++		fscache_stat_unchecked(&fscache_n_op_cancelled);
+ 		list_del_init(&op->pend_link);
+ 
+ 		ASSERTCMP(op->state, ==, FSCACHE_OP_ST_PENDING);
+@@ -414,7 +414,7 @@ void fscache_put_operation(struct fscache_operation *op)
+ 		    op->state, ==, FSCACHE_OP_ST_CANCELLED);
+ 	op->state = FSCACHE_OP_ST_DEAD;
+ 
+-	fscache_stat(&fscache_n_op_release);
++	fscache_stat_unchecked(&fscache_n_op_release);
+ 
+ 	if (op->release) {
+ 		op->release(op);
+@@ -433,7 +433,7 @@ void fscache_put_operation(struct fscache_operation *op)
+ 	 * lock, and defer it otherwise */
+ 	if (!spin_trylock(&object->lock)) {
+ 		_debug("defer put");
+-		fscache_stat(&fscache_n_op_deferred_release);
++		fscache_stat_unchecked(&fscache_n_op_deferred_release);
+ 
+ 		cache = object->cache;
+ 		spin_lock(&cache->op_gc_list_lock);
+@@ -486,7 +486,7 @@ void fscache_operation_gc(struct work_struct *work)
+ 
+ 		_debug("GC DEFERRED REL OBJ%x OP%x",
+ 		       object->debug_id, op->debug_id);
+-		fscache_stat(&fscache_n_op_gc);
++		fscache_stat_unchecked(&fscache_n_op_gc);
+ 
+ 		ASSERTCMP(atomic_read(&op->usage), ==, 0);
+ 		ASSERTCMP(op->state, ==, FSCACHE_OP_ST_DEAD);
+diff --git a/fs/fscache/page.c b/fs/fscache/page.c
+index 7f5c658..6c1e164 100644
+--- a/fs/fscache/page.c
++++ b/fs/fscache/page.c
+@@ -61,7 +61,7 @@ try_again:
+ 	val = radix_tree_lookup(&cookie->stores, page->index);
+ 	if (!val) {
+ 		rcu_read_unlock();
+-		fscache_stat(&fscache_n_store_vmscan_not_storing);
++		fscache_stat_unchecked(&fscache_n_store_vmscan_not_storing);
+ 		__fscache_uncache_page(cookie, page);
+ 		return true;
+ 	}
+@@ -91,11 +91,11 @@ try_again:
+ 	spin_unlock(&cookie->stores_lock);
+ 
+ 	if (xpage) {
+-		fscache_stat(&fscache_n_store_vmscan_cancelled);
+-		fscache_stat(&fscache_n_store_radix_deletes);
++		fscache_stat_unchecked(&fscache_n_store_vmscan_cancelled);
++		fscache_stat_unchecked(&fscache_n_store_radix_deletes);
+ 		ASSERTCMP(xpage, ==, page);
+ 	} else {
+-		fscache_stat(&fscache_n_store_vmscan_gone);
++		fscache_stat_unchecked(&fscache_n_store_vmscan_gone);
+ 	}
+ 
+ 	wake_up_bit(&cookie->flags, 0);
+@@ -110,11 +110,11 @@ page_busy:
+ 	 * sleeping on memory allocation, so we may need to impose a timeout
+ 	 * too. */
+ 	if (!(gfp & __GFP_WAIT) || !(gfp & __GFP_FS)) {
+-		fscache_stat(&fscache_n_store_vmscan_busy);
++		fscache_stat_unchecked(&fscache_n_store_vmscan_busy);
+ 		return false;
+ 	}
+ 
+-	fscache_stat(&fscache_n_store_vmscan_wait);
++	fscache_stat_unchecked(&fscache_n_store_vmscan_wait);
+ 	__fscache_wait_on_page_write(cookie, page);
+ 	gfp &= ~__GFP_WAIT;
+ 	goto try_again;
+@@ -140,7 +140,7 @@ static void fscache_end_page_write(struct fscache_object *object,
+ 				     FSCACHE_COOKIE_STORING_TAG);
+ 		if (!radix_tree_tag_get(&cookie->stores, page->index,
+ 					FSCACHE_COOKIE_PENDING_TAG)) {
+-			fscache_stat(&fscache_n_store_radix_deletes);
++			fscache_stat_unchecked(&fscache_n_store_radix_deletes);
+ 			xpage = radix_tree_delete(&cookie->stores, page->index);
+ 		}
+ 		spin_unlock(&cookie->stores_lock);
+@@ -161,7 +161,7 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
+ 
+ 	_enter("{OBJ%x OP%x}", object->debug_id, op->debug_id);
+ 
+-	fscache_stat(&fscache_n_attr_changed_calls);
++	fscache_stat_unchecked(&fscache_n_attr_changed_calls);
+ 
+ 	if (fscache_object_is_active(object)) {
+ 		fscache_stat(&fscache_n_cop_attr_changed);
+@@ -188,11 +188,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
+ 
+ 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
+ 
+-	fscache_stat(&fscache_n_attr_changed);
++	fscache_stat_unchecked(&fscache_n_attr_changed);
+ 
+ 	op = kzalloc(sizeof(*op), GFP_KERNEL);
+ 	if (!op) {
+-		fscache_stat(&fscache_n_attr_changed_nomem);
++		fscache_stat_unchecked(&fscache_n_attr_changed_nomem);
+ 		_leave(" = -ENOMEM");
+ 		return -ENOMEM;
+ 	}
+@@ -214,7 +214,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
+ 	if (fscache_submit_exclusive_op(object, op) < 0)
+ 		goto nobufs;
+ 	spin_unlock(&cookie->lock);
+-	fscache_stat(&fscache_n_attr_changed_ok);
++	fscache_stat_unchecked(&fscache_n_attr_changed_ok);
+ 	fscache_put_operation(op);
+ 	_leave(" = 0");
+ 	return 0;
+@@ -225,7 +225,7 @@ nobufs:
+ 	kfree(op);
+ 	if (wake_cookie)
+ 		__fscache_wake_unused_cookie(cookie);
+-	fscache_stat(&fscache_n_attr_changed_nobufs);
++	fscache_stat_unchecked(&fscache_n_attr_changed_nobufs);
+ 	_leave(" = %d", -ENOBUFS);
+ 	return -ENOBUFS;
+ }
+@@ -264,7 +264,7 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
+ 	/* allocate a retrieval operation and attempt to submit it */
+ 	op = kzalloc(sizeof(*op), GFP_NOIO);
+ 	if (!op) {
+-		fscache_stat(&fscache_n_retrievals_nomem);
++		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
+ 		return NULL;
+ 	}
+ 
+@@ -294,13 +294,13 @@ int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
+ 		return 0;
+ 	}
+ 
+-	fscache_stat(&fscache_n_retrievals_wait);
++	fscache_stat_unchecked(&fscache_n_retrievals_wait);
+ 
+ 	jif = jiffies;
+ 	if (wait_on_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP,
+ 			fscache_wait_bit_interruptible,
+ 			TASK_INTERRUPTIBLE) != 0) {
+-		fscache_stat(&fscache_n_retrievals_intr);
++		fscache_stat_unchecked(&fscache_n_retrievals_intr);
+ 		_leave(" = -ERESTARTSYS");
+ 		return -ERESTARTSYS;
+ 	}
+@@ -329,8 +329,8 @@ static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
+  */
+ int fscache_wait_for_operation_activation(struct fscache_object *object,
+ 					  struct fscache_operation *op,
+-					  atomic_t *stat_op_waits,
+-					  atomic_t *stat_object_dead,
++					  atomic_unchecked_t *stat_op_waits,
++					  atomic_unchecked_t *stat_object_dead,
+ 					  void (*do_cancel)(struct fscache_operation *))
+ {
+ 	int ret;
+@@ -340,7 +340,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
+ 
+ 	_debug(">>> WT");
+ 	if (stat_op_waits)
+-		fscache_stat(stat_op_waits);
++		fscache_stat_unchecked(stat_op_waits);
+ 	if (wait_on_bit(&op->flags, FSCACHE_OP_WAITING,
+ 			fscache_wait_bit_interruptible,
+ 			TASK_INTERRUPTIBLE) != 0) {
+@@ -358,7 +358,7 @@ int fscache_wait_for_operation_activation(struct fscache_object *object,
+ check_if_dead:
+ 	if (op->state == FSCACHE_OP_ST_CANCELLED) {
+ 		if (stat_object_dead)
+-			fscache_stat(stat_object_dead);
++			fscache_stat_unchecked(stat_object_dead);
+ 		_leave(" = -ENOBUFS [cancelled]");
+ 		return -ENOBUFS;
+ 	}
+@@ -366,7 +366,7 @@ check_if_dead:
+ 		pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->state);
+ 		fscache_cancel_op(op, do_cancel);
+ 		if (stat_object_dead)
+-			fscache_stat(stat_object_dead);
++			fscache_stat_unchecked(stat_object_dead);
+ 		return -ENOBUFS;
+ 	}
+ 	return 0;
+@@ -394,7 +394,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
+ 
+ 	_enter("%p,%p,,,", cookie, page);
+ 
+-	fscache_stat(&fscache_n_retrievals);
++	fscache_stat_unchecked(&fscache_n_retrievals);
+ 
+ 	if (hlist_empty(&cookie->backing_objects))
+ 		goto nobufs;
+@@ -436,7 +436,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
+ 		goto nobufs_unlock_dec;
+ 	spin_unlock(&cookie->lock);
+ 
+-	fscache_stat(&fscache_n_retrieval_ops);
++	fscache_stat_unchecked(&fscache_n_retrieval_ops);
+ 
+ 	/* pin the netfs read context in case we need to do the actual netfs
+ 	 * read because we've encountered a cache read failure */
+@@ -467,15 +467,15 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
+ 
+ error:
+ 	if (ret == -ENOMEM)
+-		fscache_stat(&fscache_n_retrievals_nomem);
++		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
+ 	else if (ret == -ERESTARTSYS)
+-		fscache_stat(&fscache_n_retrievals_intr);
++		fscache_stat_unchecked(&fscache_n_retrievals_intr);
+ 	else if (ret == -ENODATA)
+-		fscache_stat(&fscache_n_retrievals_nodata);
++		fscache_stat_unchecked(&fscache_n_retrievals_nodata);
+ 	else if (ret < 0)
+-		fscache_stat(&fscache_n_retrievals_nobufs);
++		fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
+ 	else
+-		fscache_stat(&fscache_n_retrievals_ok);
++		fscache_stat_unchecked(&fscache_n_retrievals_ok);
+ 
+ 	fscache_put_retrieval(op);
+ 	_leave(" = %d", ret);
+@@ -490,7 +490,7 @@ nobufs_unlock:
+ 		__fscache_wake_unused_cookie(cookie);
+ 	kfree(op);
+ nobufs:
+-	fscache_stat(&fscache_n_retrievals_nobufs);
++	fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
+ 	_leave(" = -ENOBUFS");
+ 	return -ENOBUFS;
+ }
+@@ -529,7 +529,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
+ 
+ 	_enter("%p,,%d,,,", cookie, *nr_pages);
+ 
+-	fscache_stat(&fscache_n_retrievals);
++	fscache_stat_unchecked(&fscache_n_retrievals);
+ 
+ 	if (hlist_empty(&cookie->backing_objects))
+ 		goto nobufs;
+@@ -567,7 +567,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
+ 		goto nobufs_unlock_dec;
+ 	spin_unlock(&cookie->lock);
+ 
+-	fscache_stat(&fscache_n_retrieval_ops);
++	fscache_stat_unchecked(&fscache_n_retrieval_ops);
+ 
+ 	/* pin the netfs read context in case we need to do the actual netfs
+ 	 * read because we've encountered a cache read failure */
+@@ -598,15 +598,15 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
+ 
+ error:
+ 	if (ret == -ENOMEM)
+-		fscache_stat(&fscache_n_retrievals_nomem);
++		fscache_stat_unchecked(&fscache_n_retrievals_nomem);
+ 	else if (ret == -ERESTARTSYS)
+-		fscache_stat(&fscache_n_retrievals_intr);
++		fscache_stat_unchecked(&fscache_n_retrievals_intr);
+ 	else if (ret == -ENODATA)
+-		fscache_stat(&fscache_n_retrievals_nodata);
++		fscache_stat_unchecked(&fscache_n_retrievals_nodata);
+ 	else if (ret < 0)
+-		fscache_stat(&fscache_n_retrievals_nobufs);
++		fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
+ 	else
+-		fscache_stat(&fscache_n_retrievals_ok);
++		fscache_stat_unchecked(&fscache_n_retrievals_ok);
+ 
+ 	fscache_put_retrieval(op);
+ 	_leave(" = %d", ret);
+@@ -621,7 +621,7 @@ nobufs_unlock:
+ 	if (wake_cookie)
+ 		__fscache_wake_unused_cookie(cookie);
+ nobufs:
+-	fscache_stat(&fscache_n_retrievals_nobufs);
++	fscache_stat_unchecked(&fscache_n_retrievals_nobufs);
+ 	_leave(" = -ENOBUFS");
+ 	return -ENOBUFS;
+ }
+@@ -646,7 +646,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
+ 
+ 	_enter("%p,%p,,,", cookie, page);
+ 
+-	fscache_stat(&fscache_n_allocs);
++	fscache_stat_unchecked(&fscache_n_allocs);
+ 
+ 	if (hlist_empty(&cookie->backing_objects))
+ 		goto nobufs;
+@@ -680,7 +680,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
+ 		goto nobufs_unlock_dec;
+ 	spin_unlock(&cookie->lock);
+ 
+-	fscache_stat(&fscache_n_alloc_ops);
++	fscache_stat_unchecked(&fscache_n_alloc_ops);
+ 
+ 	ret = fscache_wait_for_operation_activation(
+ 		object, &op->op,
+@@ -697,11 +697,11 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
+ 
+ error:
+ 	if (ret == -ERESTARTSYS)
+-		fscache_stat(&fscache_n_allocs_intr);
++		fscache_stat_unchecked(&fscache_n_allocs_intr);
+ 	else if (ret < 0)
+-		fscache_stat(&fscache_n_allocs_nobufs);
++		fscache_stat_unchecked(&fscache_n_allocs_nobufs);
+ 	else
+-		fscache_stat(&fscache_n_allocs_ok);
++		fscache_stat_unchecked(&fscache_n_allocs_ok);
+ 
+ 	fscache_put_retrieval(op);
+ 	_leave(" = %d", ret);
+@@ -715,7 +715,7 @@ nobufs_unlock:
+ 	if (wake_cookie)
+ 		__fscache_wake_unused_cookie(cookie);
+ nobufs:
+-	fscache_stat(&fscache_n_allocs_nobufs);
++	fscache_stat_unchecked(&fscache_n_allocs_nobufs);
+ 	_leave(" = -ENOBUFS");
+ 	return -ENOBUFS;
+ }
+@@ -791,7 +791,7 @@ static void fscache_write_op(struct fscache_operation *_op)
+ 
+ 	spin_lock(&cookie->stores_lock);
+ 
+-	fscache_stat(&fscache_n_store_calls);
++	fscache_stat_unchecked(&fscache_n_store_calls);
+ 
+ 	/* find a page to store */
+ 	page = NULL;
+@@ -802,7 +802,7 @@ static void fscache_write_op(struct fscache_operation *_op)
+ 	page = results[0];
+ 	_debug("gang %d [%lx]", n, page->index);
+ 	if (page->index > op->store_limit) {
+-		fscache_stat(&fscache_n_store_pages_over_limit);
++		fscache_stat_unchecked(&fscache_n_store_pages_over_limit);
+ 		goto superseded;
+ 	}
+ 
+@@ -814,7 +814,7 @@ static void fscache_write_op(struct fscache_operation *_op)
+ 	spin_unlock(&cookie->stores_lock);
+ 	spin_unlock(&object->lock);
+ 
+-	fscache_stat(&fscache_n_store_pages);
++	fscache_stat_unchecked(&fscache_n_store_pages);
+ 	fscache_stat(&fscache_n_cop_write_page);
+ 	ret = object->cache->ops->write_page(op, page);
+ 	fscache_stat_d(&fscache_n_cop_write_page);
+@@ -918,7 +918,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
+ 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
+ 	ASSERT(PageFsCache(page));
+ 
+-	fscache_stat(&fscache_n_stores);
++	fscache_stat_unchecked(&fscache_n_stores);
+ 
+ 	if (test_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags)) {
+ 		_leave(" = -ENOBUFS [invalidating]");
+@@ -977,7 +977,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
+ 	spin_unlock(&cookie->stores_lock);
+ 	spin_unlock(&object->lock);
+ 
+-	op->op.debug_id	= atomic_inc_return(&fscache_op_debug_id);
++	op->op.debug_id	= atomic_inc_return_unchecked(&fscache_op_debug_id);
+ 	op->store_limit = object->store_limit;
+ 
+ 	__fscache_use_cookie(cookie);
+@@ -986,8 +986,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
+ 
+ 	spin_unlock(&cookie->lock);
+ 	radix_tree_preload_end();
+-	fscache_stat(&fscache_n_store_ops);
+-	fscache_stat(&fscache_n_stores_ok);
++	fscache_stat_unchecked(&fscache_n_store_ops);
++	fscache_stat_unchecked(&fscache_n_stores_ok);
+ 
+ 	/* the work queue now carries its own ref on the object */
+ 	fscache_put_operation(&op->op);
+@@ -995,14 +995,14 @@ int __fscache_write_page(struct fscache_cookie *cookie,
+ 	return 0;
+ 
+ already_queued:
+-	fscache_stat(&fscache_n_stores_again);
++	fscache_stat_unchecked(&fscache_n_stores_again);
+ already_pending:
+ 	spin_unlock(&cookie->stores_lock);
+ 	spin_unlock(&object->lock);
+ 	spin_unlock(&cookie->lock);
+ 	radix_tree_preload_end();
+ 	kfree(op);
+-	fscache_stat(&fscache_n_stores_ok);
++	fscache_stat_unchecked(&fscache_n_stores_ok);
+ 	_leave(" = 0");
+ 	return 0;
+ 
+@@ -1024,14 +1024,14 @@ nobufs:
+ 	kfree(op);
+ 	if (wake_cookie)
+ 		__fscache_wake_unused_cookie(cookie);
+-	fscache_stat(&fscache_n_stores_nobufs);
++	fscache_stat_unchecked(&fscache_n_stores_nobufs);
+ 	_leave(" = -ENOBUFS");
+ 	return -ENOBUFS;
+ 
+ nomem_free:
+ 	kfree(op);
+ nomem:
+-	fscache_stat(&fscache_n_stores_oom);
++	fscache_stat_unchecked(&fscache_n_stores_oom);
+ 	_leave(" = -ENOMEM");
+ 	return -ENOMEM;
+ }
+@@ -1049,7 +1049,7 @@ void __fscache_uncache_page(struct fscache_cookie *cookie, struct page *page)
+ 	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);
+ 	ASSERTCMP(page, !=, NULL);
+ 
+-	fscache_stat(&fscache_n_uncaches);
++	fscache_stat_unchecked(&fscache_n_uncaches);
+ 
+ 	/* cache withdrawal may beat us to it */
+ 	if (!PageFsCache(page))
+@@ -1100,7 +1100,7 @@ void fscache_mark_page_cached(struct fscache_retrieval *op, struct page *page)
+ 	struct fscache_cookie *cookie = op->op.object->cookie;
+ 
+ #ifdef CONFIG_FSCACHE_STATS
+-	atomic_inc(&fscache_n_marks);
++	atomic_inc_unchecked(&fscache_n_marks);
+ #endif
+ 
+ 	_debug("- mark %p{%lx}", page, page->index);
+diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
+index 40d13c7..ddf52b9 100644
+--- a/fs/fscache/stats.c
++++ b/fs/fscache/stats.c
+@@ -18,99 +18,99 @@
+ /*
+  * operation counters
+  */
+-atomic_t fscache_n_op_pend;
+-atomic_t fscache_n_op_run;
+-atomic_t fscache_n_op_enqueue;
+-atomic_t fscache_n_op_requeue;
+-atomic_t fscache_n_op_deferred_release;
+-atomic_t fscache_n_op_release;
+-atomic_t fscache_n_op_gc;
+-atomic_t fscache_n_op_cancelled;
+-atomic_t fscache_n_op_rejected;
++atomic_unchecked_t fscache_n_op_pend;
++atomic_unchecked_t fscache_n_op_run;
++atomic_unchecked_t fscache_n_op_enqueue;
++atomic_unchecked_t fscache_n_op_requeue;
++atomic_unchecked_t fscache_n_op_deferred_release;
++atomic_unchecked_t fscache_n_op_release;
++atomic_unchecked_t fscache_n_op_gc;
++atomic_unchecked_t fscache_n_op_cancelled;
++atomic_unchecked_t fscache_n_op_rejected;
+ 
+-atomic_t fscache_n_attr_changed;
+-atomic_t fscache_n_attr_changed_ok;
+-atomic_t fscache_n_attr_changed_nobufs;
+-atomic_t fscache_n_attr_changed_nomem;
+-atomic_t fscache_n_attr_changed_calls;
++atomic_unchecked_t fscache_n_attr_changed;
++atomic_unchecked_t fscache_n_attr_changed_ok;
++atomic_unchecked_t fscache_n_attr_changed_nobufs;
++atomic_unchecked_t fscache_n_attr_changed_nomem;
++atomic_unchecked_t fscache_n_attr_changed_calls;
+ 
+-atomic_t fscache_n_allocs;
+-atomic_t fscache_n_allocs_ok;
+-atomic_t fscache_n_allocs_wait;
+-atomic_t fscache_n_allocs_nobufs;
+-atomic_t fscache_n_allocs_intr;
+-atomic_t fscache_n_allocs_object_dead;
+-atomic_t fscache_n_alloc_ops;
+-atomic_t fscache_n_alloc_op_waits;
++atomic_unchecked_t fscache_n_allocs;
++atomic_unchecked_t fscache_n_allocs_ok;
++atomic_unchecked_t fscache_n_allocs_wait;
++atomic_unchecked_t fscache_n_allocs_nobufs;
++atomic_unchecked_t fscache_n_allocs_intr;
++atomic_unchecked_t fscache_n_allocs_object_dead;
++atomic_unchecked_t fscache_n_alloc_ops;
++atomic_unchecked_t fscache_n_alloc_op_waits;
+ 
+-atomic_t fscache_n_retrievals;
+-atomic_t fscache_n_retrievals_ok;
+-atomic_t fscache_n_retrievals_wait;
+-atomic_t fscache_n_retrievals_nodata;
+-atomic_t fscache_n_retrievals_nobufs;
+-atomic_t fscache_n_retrievals_intr;
+-atomic_t fscache_n_retrievals_nomem;
+-atomic_t fscache_n_retrievals_object_dead;
+-atomic_t fscache_n_retrieval_ops;
+-atomic_t fscache_n_retrieval_op_waits;
++atomic_unchecked_t fscache_n_retrievals;
++atomic_unchecked_t fscache_n_retrievals_ok;
++atomic_unchecked_t fscache_n_retrievals_wait;
++atomic_unchecked_t fscache_n_retrievals_nodata;
++atomic_unchecked_t fscache_n_retrievals_nobufs;
++atomic_unchecked_t fscache_n_retrievals_intr;
++atomic_unchecked_t fscache_n_retrievals_nomem;
++atomic_unchecked_t fscache_n_retrievals_object_dead;
++atomic_unchecked_t fscache_n_retrieval_ops;
++atomic_unchecked_t fscache_n_retrieval_op_waits;
+ 
+-atomic_t fscache_n_stores;
+-atomic_t fscache_n_stores_ok;
+-atomic_t fscache_n_stores_again;
+-atomic_t fscache_n_stores_nobufs;
+-atomic_t fscache_n_stores_oom;
+-atomic_t fscache_n_store_ops;
+-atomic_t fscache_n_store_calls;
+-atomic_t fscache_n_store_pages;
+-atomic_t fscache_n_store_radix_deletes;
+-atomic_t fscache_n_store_pages_over_limit;
++atomic_unchecked_t fscache_n_stores;
++atomic_unchecked_t fscache_n_stores_ok;
++atomic_unchecked_t fscache_n_stores_again;
++atomic_unchecked_t fscache_n_stores_nobufs;
++atomic_unchecked_t fscache_n_stores_oom;
++atomic_unchecked_t fscache_n_store_ops;
++atomic_unchecked_t fscache_n_store_calls;
++atomic_unchecked_t fscache_n_store_pages;
++atomic_unchecked_t fscache_n_store_radix_deletes;
++atomic_unchecked_t fscache_n_store_pages_over_limit;
+ 
+-atomic_t fscache_n_store_vmscan_not_storing;
+-atomic_t fscache_n_store_vmscan_gone;
+-atomic_t fscache_n_store_vmscan_busy;
+-atomic_t fscache_n_store_vmscan_cancelled;
+-atomic_t fscache_n_store_vmscan_wait;
++atomic_unchecked_t fscache_n_store_vmscan_not_storing;
++atomic_unchecked_t fscache_n_store_vmscan_gone;
++atomic_unchecked_t fscache_n_store_vmscan_busy;
++atomic_unchecked_t fscache_n_store_vmscan_cancelled;
++atomic_unchecked_t fscache_n_store_vmscan_wait;
+ 
+-atomic_t fscache_n_marks;
+-atomic_t fscache_n_uncaches;
++atomic_unchecked_t fscache_n_marks;
++atomic_unchecked_t fscache_n_uncaches;
+ 
+-atomic_t fscache_n_acquires;
+-atomic_t fscache_n_acquires_null;
+-atomic_t fscache_n_acquires_no_cache;
+-atomic_t fscache_n_acquires_ok;
+-atomic_t fscache_n_acquires_nobufs;
+-atomic_t fscache_n_acquires_oom;
++atomic_unchecked_t fscache_n_acquires;
++atomic_unchecked_t fscache_n_acquires_null;
++atomic_unchecked_t fscache_n_acquires_no_cache;
++atomic_unchecked_t fscache_n_acquires_ok;
++atomic_unchecked_t fscache_n_acquires_nobufs;
++atomic_unchecked_t fscache_n_acquires_oom;
+ 
+-atomic_t fscache_n_invalidates;
+-atomic_t fscache_n_invalidates_run;
++atomic_unchecked_t fscache_n_invalidates;
++atomic_unchecked_t fscache_n_invalidates_run;
+ 
+-atomic_t fscache_n_updates;
+-atomic_t fscache_n_updates_null;
+-atomic_t fscache_n_updates_run;
++atomic_unchecked_t fscache_n_updates;
++atomic_unchecked_t fscache_n_updates_null;
++atomic_unchecked_t fscache_n_updates_run;
+ 
+-atomic_t fscache_n_relinquishes;
+-atomic_t fscache_n_relinquishes_null;
+-atomic_t fscache_n_relinquishes_waitcrt;
+-atomic_t fscache_n_relinquishes_retire;
++atomic_unchecked_t fscache_n_relinquishes;
++atomic_unchecked_t fscache_n_relinquishes_null;
++atomic_unchecked_t fscache_n_relinquishes_waitcrt;
++atomic_unchecked_t fscache_n_relinquishes_retire;
+ 
+-atomic_t fscache_n_cookie_index;
+-atomic_t fscache_n_cookie_data;
+-atomic_t fscache_n_cookie_special;
++atomic_unchecked_t fscache_n_cookie_index;
++atomic_unchecked_t fscache_n_cookie_data;
++atomic_unchecked_t fscache_n_cookie_special;
+ 
+-atomic_t fscache_n_object_alloc;
+-atomic_t fscache_n_object_no_alloc;
+-atomic_t fscache_n_object_lookups;
+-atomic_t fscache_n_object_lookups_negative;
+-atomic_t fscache_n_object_lookups_positive;
+-atomic_t fscache_n_object_lookups_timed_out;
+-atomic_t fscache_n_object_created;
+-atomic_t fscache_n_object_avail;
+-atomic_t fscache_n_object_dead;
++atomic_unchecked_t fscache_n_object_alloc;
++atomic_unchecked_t fscache_n_object_no_alloc;
++atomic_unchecked_t fscache_n_object_lookups;
++atomic_unchecked_t fscache_n_object_lookups_negative;
++atomic_unchecked_t fscache_n_object_lookups_positive;
++atomic_unchecked_t fscache_n_object_lookups_timed_out;
++atomic_unchecked_t fscache_n_object_created;
++atomic_unchecked_t fscache_n_object_avail;
++atomic_unchecked_t fscache_n_object_dead;
+ 
+-atomic_t fscache_n_checkaux_none;
+-atomic_t fscache_n_checkaux_okay;
+-atomic_t fscache_n_checkaux_update;
+-atomic_t fscache_n_checkaux_obsolete;
++atomic_unchecked_t fscache_n_checkaux_none;
++atomic_unchecked_t fscache_n_checkaux_okay;
++atomic_unchecked_t fscache_n_checkaux_update;
++atomic_unchecked_t fscache_n_checkaux_obsolete;
+ 
+ atomic_t fscache_n_cop_alloc_object;
+ atomic_t fscache_n_cop_lookup_object;
+@@ -138,118 +138,118 @@ static int fscache_stats_show(struct seq_file *m, void *v)
+ 	seq_puts(m, "FS-Cache statistics\n");
+ 
+ 	seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
+-		   atomic_read(&fscache_n_cookie_index),
+-		   atomic_read(&fscache_n_cookie_data),
+-		   atomic_read(&fscache_n_cookie_special));
++		   atomic_read_unchecked(&fscache_n_cookie_index),
++		   atomic_read_unchecked(&fscache_n_cookie_data),
++		   atomic_read_unchecked(&fscache_n_cookie_special));
+ 
+ 	seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
+-		   atomic_read(&fscache_n_object_alloc),
+-		   atomic_read(&fscache_n_object_no_alloc),
+-		   atomic_read(&fscache_n_object_avail),
+-		   atomic_read(&fscache_n_object_dead));
++		   atomic_read_unchecked(&fscache_n_object_alloc),
++		   atomic_read_unchecked(&fscache_n_object_no_alloc),
++		   atomic_read_unchecked(&fscache_n_object_avail),
++		   atomic_read_unchecked(&fscache_n_object_dead));
+ 	seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
+-		   atomic_read(&fscache_n_checkaux_none),
+-		   atomic_read(&fscache_n_checkaux_okay),
+-		   atomic_read(&fscache_n_checkaux_update),
+-		   atomic_read(&fscache_n_checkaux_obsolete));
++		   atomic_read_unchecked(&fscache_n_checkaux_none),
++		   atomic_read_unchecked(&fscache_n_checkaux_okay),
++		   atomic_read_unchecked(&fscache_n_checkaux_update),
++		   atomic_read_unchecked(&fscache_n_checkaux_obsolete));
+ 
+ 	seq_printf(m, "Pages  : mrk=%u unc=%u\n",
+-		   atomic_read(&fscache_n_marks),
+-		   atomic_read(&fscache_n_uncaches));
++		   atomic_read_unchecked(&fscache_n_marks),
++		   atomic_read_unchecked(&fscache_n_uncaches));
+ 
+ 	seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
+ 		   " oom=%u\n",
+-		   atomic_read(&fscache_n_acquires),
+-		   atomic_read(&fscache_n_acquires_null),
+-		   atomic_read(&fscache_n_acquires_no_cache),
+-		   atomic_read(&fscache_n_acquires_ok),
+-		   atomic_read(&fscache_n_acquires_nobufs),
+-		   atomic_read(&fscache_n_acquires_oom));
++		   atomic_read_unchecked(&fscache_n_acquires),
++		   atomic_read_unchecked(&fscache_n_acquires_null),
++		   atomic_read_unchecked(&fscache_n_acquires_no_cache),
++		   atomic_read_unchecked(&fscache_n_acquires_ok),
++		   atomic_read_unchecked(&fscache_n_acquires_nobufs),
++		   atomic_read_unchecked(&fscache_n_acquires_oom));
+ 
+ 	seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
+-		   atomic_read(&fscache_n_object_lookups),
+-		   atomic_read(&fscache_n_object_lookups_negative),
+-		   atomic_read(&fscache_n_object_lookups_positive),
+-		   atomic_read(&fscache_n_object_created),
+-		   atomic_read(&fscache_n_object_lookups_timed_out));
++		   atomic_read_unchecked(&fscache_n_object_lookups),
++		   atomic_read_unchecked(&fscache_n_object_lookups_negative),
++		   atomic_read_unchecked(&fscache_n_object_lookups_positive),
++		   atomic_read_unchecked(&fscache_n_object_created),
++		   atomic_read_unchecked(&fscache_n_object_lookups_timed_out));
+ 
+ 	seq_printf(m, "Invals : n=%u run=%u\n",
+-		   atomic_read(&fscache_n_invalidates),
+-		   atomic_read(&fscache_n_invalidates_run));
++		   atomic_read_unchecked(&fscache_n_invalidates),
++		   atomic_read_unchecked(&fscache_n_invalidates_run));
+ 
+ 	seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
+-		   atomic_read(&fscache_n_updates),
+-		   atomic_read(&fscache_n_updates_null),
+-		   atomic_read(&fscache_n_updates_run));
++		   atomic_read_unchecked(&fscache_n_updates),
++		   atomic_read_unchecked(&fscache_n_updates_null),
++		   atomic_read_unchecked(&fscache_n_updates_run));
+ 
+ 	seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
+-		   atomic_read(&fscache_n_relinquishes),
+-		   atomic_read(&fscache_n_relinquishes_null),
+-		   atomic_read(&fscache_n_relinquishes_waitcrt),
+-		   atomic_read(&fscache_n_relinquishes_retire));
++		   atomic_read_unchecked(&fscache_n_relinquishes),
++		   atomic_read_unchecked(&fscache_n_relinquishes_null),
++		   atomic_read_unchecked(&fscache_n_relinquishes_waitcrt),
++		   atomic_read_unchecked(&fscache_n_relinquishes_retire));
+ 
+ 	seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
+-		   atomic_read(&fscache_n_attr_changed),
+-		   atomic_read(&fscache_n_attr_changed_ok),
+-		   atomic_read(&fscache_n_attr_changed_nobufs),
+-		   atomic_read(&fscache_n_attr_changed_nomem),
+-		   atomic_read(&fscache_n_attr_changed_calls));
++		   atomic_read_unchecked(&fscache_n_attr_changed),
++		   atomic_read_unchecked(&fscache_n_attr_changed_ok),
++		   atomic_read_unchecked(&fscache_n_attr_changed_nobufs),
++		   atomic_read_unchecked(&fscache_n_attr_changed_nomem),
++		   atomic_read_unchecked(&fscache_n_attr_changed_calls));
+ 
+ 	seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
+-		   atomic_read(&fscache_n_allocs),
+-		   atomic_read(&fscache_n_allocs_ok),
+-		   atomic_read(&fscache_n_allocs_wait),
+-		   atomic_read(&fscache_n_allocs_nobufs),
+-		   atomic_read(&fscache_n_allocs_intr));
++		   atomic_read_unchecked(&fscache_n_allocs),
++		   atomic_read_unchecked(&fscache_n_allocs_ok),
++		   atomic_read_unchecked(&fscache_n_allocs_wait),
++		   atomic_read_unchecked(&fscache_n_allocs_nobufs),
++		   atomic_read_unchecked(&fscache_n_allocs_intr));
+ 	seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
+-		   atomic_read(&fscache_n_alloc_ops),
+-		   atomic_read(&fscache_n_alloc_op_waits),
+-		   atomic_read(&fscache_n_allocs_object_dead));
++		   atomic_read_unchecked(&fscache_n_alloc_ops),
++		   atomic_read_unchecked(&fscache_n_alloc_op_waits),
++		   atomic_read_unchecked(&fscache_n_allocs_object_dead));
+ 
+ 	seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
+ 		   " int=%u oom=%u\n",
+-		   atomic_read(&fscache_n_retrievals),
+-		   atomic_read(&fscache_n_retrievals_ok),
+-		   atomic_read(&fscache_n_retrievals_wait),
+-		   atomic_read(&fscache_n_retrievals_nodata),
+-		   atomic_read(&fscache_n_retrievals_nobufs),
+-		   atomic_read(&fscache_n_retrievals_intr),
+-		   atomic_read(&fscache_n_retrievals_nomem));
++		   atomic_read_unchecked(&fscache_n_retrievals),
++		   atomic_read_unchecked(&fscache_n_retrievals_ok),
++		   atomic_read_unchecked(&fscache_n_retrievals_wait),
++		   atomic_read_unchecked(&fscache_n_retrievals_nodata),
++		   atomic_read_unchecked(&fscache_n_retrievals_nobufs),
++		   atomic_read_unchecked(&fscache_n_retrievals_intr),
++		   atomic_read_unchecked(&fscache_n_retrievals_nomem));
+ 	seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
+-		   atomic_read(&fscache_n_retrieval_ops),
+-		   atomic_read(&fscache_n_retrieval_op_waits),
+-		   atomic_read(&fscache_n_retrievals_object_dead));
++		   atomic_read_unchecked(&fscache_n_retrieval_ops),
++		   atomic_read_unchecked(&fscache_n_retrieval_op_waits),
++		   atomic_read_unchecked(&fscache_n_retrievals_object_dead));
+ 
+ 	seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
+-		   atomic_read(&fscache_n_stores),
+-		   atomic_read(&fscache_n_stores_ok),
+-		   atomic_read(&fscache_n_stores_again),
+-		   atomic_read(&fscache_n_stores_nobufs),
+-		   atomic_read(&fscache_n_stores_oom));
++		   atomic_read_unchecked(&fscache_n_stores),
++		   atomic_read_unchecked(&fscache_n_stores_ok),
++		   atomic_read_unchecked(&fscache_n_stores_again),
++		   atomic_read_unchecked(&fscache_n_stores_nobufs),
++		   atomic_read_unchecked(&fscache_n_stores_oom));
+ 	seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
+-		   atomic_read(&fscache_n_store_ops),
+-		   atomic_read(&fscache_n_store_calls),
+-		   atomic_read(&fscache_n_store_pages),
+-		   atomic_read(&fscache_n_store_radix_deletes),
+-		   atomic_read(&fscache_n_store_pages_over_limit));
++		   atomic_read_unchecked(&fscache_n_store_ops),
++		   atomic_read_unchecked(&fscache_n_store_calls),
++		   atomic_read_unchecked(&fscache_n_store_pages),
++		   atomic_read_unchecked(&fscache_n_store_radix_deletes),
++		   atomic_read_unchecked(&fscache_n_store_pages_over_limit));
+ 
+ 	seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
+-		   atomic_read(&fscache_n_store_vmscan_not_storing),
+-		   atomic_read(&fscache_n_store_vmscan_gone),
+-		   atomic_read(&fscache_n_store_vmscan_busy),
+-		   atomic_read(&fscache_n_store_vmscan_cancelled),
+-		   atomic_read(&fscache_n_store_vmscan_wait));
++		   atomic_read_unchecked(&fscache_n_store_vmscan_not_storing),
++		   atomic_read_unchecked(&fscache_n_store_vmscan_gone),
++		   atomic_read_unchecked(&fscache_n_store_vmscan_busy),
++		   atomic_read_unchecked(&fscache_n_store_vmscan_cancelled),
++		   atomic_read_unchecked(&fscache_n_store_vmscan_wait));
+ 
+ 	seq_printf(m, "Ops    : pend=%u run=%u enq=%u can=%u rej=%u\n",
+-		   atomic_read(&fscache_n_op_pend),
+-		   atomic_read(&fscache_n_op_run),
+-		   atomic_read(&fscache_n_op_enqueue),
+-		   atomic_read(&fscache_n_op_cancelled),
+-		   atomic_read(&fscache_n_op_rejected));
++		   atomic_read_unchecked(&fscache_n_op_pend),
++		   atomic_read_unchecked(&fscache_n_op_run),
++		   atomic_read_unchecked(&fscache_n_op_enqueue),
++		   atomic_read_unchecked(&fscache_n_op_cancelled),
++		   atomic_read_unchecked(&fscache_n_op_rejected));
+ 	seq_printf(m, "Ops    : dfr=%u rel=%u gc=%u\n",
+-		   atomic_read(&fscache_n_op_deferred_release),
+-		   atomic_read(&fscache_n_op_release),
+-		   atomic_read(&fscache_n_op_gc));
++		   atomic_read_unchecked(&fscache_n_op_deferred_release),
++		   atomic_read_unchecked(&fscache_n_op_release),
++		   atomic_read_unchecked(&fscache_n_op_gc));
+ 
+ 	seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
+ 		   atomic_read(&fscache_n_cop_alloc_object),
+diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
+index b96a49b..9bfdc47 100644
+--- a/fs/fuse/cuse.c
++++ b/fs/fuse/cuse.c
+@@ -606,10 +606,12 @@ static int __init cuse_init(void)
+ 		INIT_LIST_HEAD(&cuse_conntbl[i]);
+ 
+ 	/* inherit and extend fuse_dev_operations */
+-	cuse_channel_fops		= fuse_dev_operations;
+-	cuse_channel_fops.owner		= THIS_MODULE;
+-	cuse_channel_fops.open		= cuse_channel_open;
+-	cuse_channel_fops.release	= cuse_channel_release;
++	pax_open_kernel();
++	memcpy((void *)&cuse_channel_fops, &fuse_dev_operations, sizeof(fuse_dev_operations));
++	*(void **)&cuse_channel_fops.owner	= THIS_MODULE;
++	*(void **)&cuse_channel_fops.open	= cuse_channel_open;
++	*(void **)&cuse_channel_fops.release	= cuse_channel_release;
++	pax_close_kernel();
+ 
+ 	cuse_class = class_create(THIS_MODULE, "cuse");
+ 	if (IS_ERR(cuse_class))
+diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
+index 499155c..3eee098 100644
+--- a/fs/fuse/dev.c
++++ b/fs/fuse/dev.c
+@@ -1323,7 +1323,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
+ 	ret = 0;
+ 	pipe_lock(pipe);
+ 
+-	if (!pipe->readers) {
++	if (!atomic_read(&pipe->readers)) {
+ 		send_sig(SIGPIPE, current, 0);
+ 		if (!ret)
+ 			ret = -EPIPE;
+@@ -1352,7 +1352,7 @@ static ssize_t fuse_dev_splice_read(struct file *in, loff_t *ppos,
+ 		page_nr++;
+ 		ret += buf->len;
+ 
+-		if (pipe->files)
++		if (atomic_read(&pipe->files))
+ 			do_wakeup = 1;
+ 	}
+ 
+diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
+index 342f0239..d67794c 100644
+--- a/fs/fuse/dir.c
++++ b/fs/fuse/dir.c
+@@ -1419,7 +1419,7 @@ static char *read_link(struct dentry *dentry)
+ 	return link;
+ }
+ 
+-static void free_link(char *link)
++static void free_link(const char *link)
+ {
+ 	if (!IS_ERR(link))
+ 		free_page((unsigned long) link);
+diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
+index fe649d3..c679164 100644
+--- a/fs/hostfs/hostfs_kern.c
++++ b/fs/hostfs/hostfs_kern.c
+@@ -898,7 +898,7 @@ static void *hostfs_follow_link(struct dentry *dentry, struct nameidata *nd)
+ 
+ static void hostfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
+ {
+-	char *s = nd_get_link(nd);
++	const char *s = nd_get_link(nd);
+ 	if (!IS_ERR(s))
+ 		__putname(s);
+ }
+diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
+index a4a8ed5..9e017c0 100644
+--- a/fs/hugetlbfs/inode.c
++++ b/fs/hugetlbfs/inode.c
+@@ -152,6 +152,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_area_struct *vma;
+ 	struct hstate *h = hstate_file(file);
++	unsigned long offset = gr_rand_threadstack_offset(mm, file, flags);
+ 	struct vm_unmapped_area_info info;
+ 
+ 	if (len & ~huge_page_mask(h))
+@@ -165,17 +166,26 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+ 		return addr;
+ 	}
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		addr = ALIGN(addr, huge_page_size(h));
+ 		vma = find_vma(mm, addr);
+-		if (TASK_SIZE - len >= addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+ 	info.flags = 0;
+ 	info.length = len;
+ 	info.low_limit = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (mm->pax_flags & MF_PAX_RANDMMAP)
++		info.low_limit += mm->delta_mmap;
++#endif
++
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
+ 	info.align_offset = 0;
+@@ -908,7 +918,7 @@ static struct file_system_type hugetlbfs_fs_type = {
+ };
+ MODULE_ALIAS_FS("hugetlbfs");
+ 
+-static struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
++struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
+ 
+ static int can_do_hugetlb_shm(void)
+ {
+diff --git a/fs/inode.c b/fs/inode.c
+index e846a32..bb06bd0 100644
+--- a/fs/inode.c
++++ b/fs/inode.c
+@@ -839,16 +839,20 @@ unsigned int get_next_ino(void)
+ 	unsigned int *p = &get_cpu_var(last_ino);
+ 	unsigned int res = *p;
+ 
++start:
++
+ #ifdef CONFIG_SMP
+ 	if (unlikely((res & (LAST_INO_BATCH-1)) == 0)) {
+-		static atomic_t shared_last_ino;
+-		int next = atomic_add_return(LAST_INO_BATCH, &shared_last_ino);
++		static atomic_unchecked_t shared_last_ino;
++		int next = atomic_add_return_unchecked(LAST_INO_BATCH, &shared_last_ino);
+ 
+ 		res = next - LAST_INO_BATCH;
+ 	}
+ #endif
+ 
+-	*p = ++res;
++	if (unlikely(!++res))
++		goto start;	/* never zero */
++	*p = res;
+ 	put_cpu_var(last_ino);
+ 	return res;
+ }
+diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
+index 4a6cf28..d3a29d3 100644
+--- a/fs/jffs2/erase.c
++++ b/fs/jffs2/erase.c
+@@ -452,7 +452,8 @@ static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseb
+ 		struct jffs2_unknown_node marker = {
+ 			.magic =	cpu_to_je16(JFFS2_MAGIC_BITMASK),
+ 			.nodetype =	cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
+-			.totlen =	cpu_to_je32(c->cleanmarker_size)
++			.totlen =	cpu_to_je32(c->cleanmarker_size),
++			.hdr_crc =	cpu_to_je32(0)
+ 		};
+ 
+ 		jffs2_prealloc_raw_node_refs(c, jeb, 1);
+diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
+index 09ed551..45684f8 100644
+--- a/fs/jffs2/wbuf.c
++++ b/fs/jffs2/wbuf.c
+@@ -1023,7 +1023,8 @@ static const struct jffs2_unknown_node oob_cleanmarker =
+ {
+ 	.magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK),
+ 	.nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER),
+-	.totlen = constant_cpu_to_je32(8)
++	.totlen = constant_cpu_to_je32(8),
++	.hdr_crc = constant_cpu_to_je32(0)
+ };
+ 
+ /*
+diff --git a/fs/jfs/super.c b/fs/jfs/super.c
+index e2b7483..855bca3 100644
+--- a/fs/jfs/super.c
++++ b/fs/jfs/super.c
+@@ -884,7 +884,7 @@ static int __init init_jfs_fs(void)
+ 
+ 	jfs_inode_cachep =
+ 	    kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
+-			    SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
++			    SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD|SLAB_USERCOPY,
+ 			    init_once);
+ 	if (jfs_inode_cachep == NULL)
+ 		return -ENOMEM;
+diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
+index 39c0143..79e8b68 100644
+--- a/fs/kernfs/dir.c
++++ b/fs/kernfs/dir.c
+@@ -28,7 +28,7 @@ DEFINE_MUTEX(kernfs_mutex);
+  *
+  *	Returns 31 bit hash of ns + name (so it fits in an off_t )
+  */
+-static unsigned int kernfs_name_hash(const char *name, const void *ns)
++static unsigned int kernfs_name_hash(const unsigned char *name, const void *ns)
+ {
+ 	unsigned long hash = init_name_hash();
+ 	unsigned int len = strlen(name);
+@@ -729,11 +729,19 @@ static int kernfs_iop_mkdir(struct inode *dir, struct dentry *dentry,
+ {
+ 	struct kernfs_node *parent = dir->i_private;
+ 	struct kernfs_dir_ops *kdops = kernfs_root(parent)->dir_ops;
++	int ret;
+ 
+ 	if (!kdops || !kdops->mkdir)
+ 		return -EPERM;
+ 
+-	return kdops->mkdir(parent, dentry->d_name.name, mode);
++	ret = kdops->mkdir(parent, dentry->d_name.name, mode);
++
++	if (!ret) {
++		struct dentry *dentry_ret = kernfs_iop_lookup(dir, dentry, 0);
++		ret = PTR_ERR_OR_ZERO(dentry_ret);
++	}
++
++	return ret;
+ }
+ 
+ static int kernfs_iop_rmdir(struct inode *dir, struct dentry *dentry)
+diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
+index d29640b..32d2b6b 100644
+--- a/fs/kernfs/file.c
++++ b/fs/kernfs/file.c
+@@ -33,7 +33,7 @@ static DEFINE_MUTEX(kernfs_open_file_mutex);
+ 
+ struct kernfs_open_node {
+ 	atomic_t		refcnt;
+-	atomic_t		event;
++	atomic_unchecked_t	event;
+ 	wait_queue_head_t	poll;
+ 	struct list_head	files; /* goes through kernfs_open_file.list */
+ };
+@@ -149,7 +149,7 @@ static int kernfs_seq_show(struct seq_file *sf, void *v)
+ {
+ 	struct kernfs_open_file *of = sf->private;
+ 
+-	of->event = atomic_read(&of->kn->attr.open->event);
++	of->event = atomic_read_unchecked(&of->kn->attr.open->event);
+ 
+ 	return of->kn->attr.ops->seq_show(sf, v);
+ }
+@@ -353,12 +353,12 @@ static int kernfs_vma_page_mkwrite(struct vm_area_struct *vma,
+ 	return ret;
+ }
+ 
+-static int kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
+-			     void *buf, int len, int write)
++static ssize_t kernfs_vma_access(struct vm_area_struct *vma, unsigned long addr,
++			     void *buf, size_t len, int write)
+ {
+ 	struct file *file = vma->vm_file;
+ 	struct kernfs_open_file *of = kernfs_of(file);
+-	int ret;
++	ssize_t ret;
+ 
+ 	if (!of->vm_ops)
+ 		return -EINVAL;
+@@ -559,7 +559,7 @@ static int kernfs_get_open_node(struct kernfs_node *kn,
+ 		return -ENOMEM;
+ 
+ 	atomic_set(&new_on->refcnt, 0);
+-	atomic_set(&new_on->event, 1);
++	atomic_set_unchecked(&new_on->event, 1);
+ 	init_waitqueue_head(&new_on->poll);
+ 	INIT_LIST_HEAD(&new_on->files);
+ 	goto retry;
+@@ -756,7 +756,7 @@ static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait)
+ 
+ 	kernfs_put_active(kn);
+ 
+-	if (of->event != atomic_read(&on->event))
++	if (of->event != atomic_read_unchecked(&on->event))
+ 		goto trigger;
+ 
+ 	return DEFAULT_POLLMASK;
+@@ -781,7 +781,7 @@ void kernfs_notify(struct kernfs_node *kn)
+ 	if (!WARN_ON(kernfs_type(kn) != KERNFS_FILE)) {
+ 		on = kn->attr.open;
+ 		if (on) {
+-			atomic_inc(&on->event);
++			atomic_inc_unchecked(&on->event);
+ 			wake_up_interruptible(&on->poll);
+ 		}
+ 	}
+diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
+index 4d45705..b35e0bd 100644
+--- a/fs/kernfs/symlink.c
++++ b/fs/kernfs/symlink.c
+@@ -132,7 +132,7 @@ static void *kernfs_iop_follow_link(struct dentry *dentry, struct nameidata *nd)
+ static void kernfs_iop_put_link(struct dentry *dentry, struct nameidata *nd,
+ 				void *cookie)
+ {
+-	char *page = nd_get_link(nd);
++	const char *page = nd_get_link(nd);
+ 	if (!IS_ERR(page))
+ 		free_page((unsigned long)page);
+ }
+diff --git a/fs/libfs.c b/fs/libfs.c
+index 868c0b7..1831f93 100644
+--- a/fs/libfs.c
++++ b/fs/libfs.c
+@@ -159,6 +159,9 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
+ 
+ 	for (p = q->next; p != &dentry->d_subdirs; p = p->next) {
+ 		struct dentry *next = list_entry(p, struct dentry, d_child);
++		char d_name[sizeof(next->d_iname)];
++		const unsigned char *name;
++
+ 		spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
+ 		if (!simple_positive(next)) {
+ 			spin_unlock(&next->d_lock);
+@@ -167,7 +170,12 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
+ 
+ 		spin_unlock(&next->d_lock);
+ 		spin_unlock(&dentry->d_lock);
+-		if (!dir_emit(ctx, next->d_name.name, next->d_name.len,
++		name = next->d_name.name;
++		if (name == next->d_iname) {
++			memcpy(d_name, name, next->d_name.len);
++			name = d_name;
++		}
++		if (!dir_emit(ctx, name, next->d_name.len,
+ 			      next->d_inode->i_ino, dt_type(next->d_inode)))
+ 			return 0;
+ 		spin_lock(&dentry->d_lock);
+@@ -999,7 +1007,7 @@ EXPORT_SYMBOL(noop_fsync);
+ void kfree_put_link(struct dentry *dentry, struct nameidata *nd,
+ 				void *cookie)
+ {
+-	char *s = nd_get_link(nd);
++	const char *s = nd_get_link(nd);
+ 	if (!IS_ERR(s))
+ 		kfree(s);
+ }
+diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
+index acd3947..1f896e2 100644
+--- a/fs/lockd/clntproc.c
++++ b/fs/lockd/clntproc.c
+@@ -36,11 +36,11 @@ static const struct rpc_call_ops nlmclnt_cancel_ops;
+ /*
+  * Cookie counter for NLM requests
+  */
+-static atomic_t	nlm_cookie = ATOMIC_INIT(0x1234);
++static atomic_unchecked_t	nlm_cookie = ATOMIC_INIT(0x1234);
+ 
+ void nlmclnt_next_cookie(struct nlm_cookie *c)
+ {
+-	u32	cookie = atomic_inc_return(&nlm_cookie);
++	u32	cookie = atomic_inc_return_unchecked(&nlm_cookie);
+ 
+ 	memcpy(c->data, &cookie, 4);
+ 	c->len=4;
+diff --git a/fs/locks.c b/fs/locks.c
+index 2c61c4e..ee5c867 100644
+--- a/fs/locks.c
++++ b/fs/locks.c
+@@ -2218,16 +2218,16 @@ void locks_remove_flock(struct file *filp)
+ 		return;
+ 
+ 	if (filp->f_op->flock) {
+-		struct file_lock fl = {
++		struct file_lock flock = {
+ 			.fl_pid = current->tgid,
+ 			.fl_file = filp,
+ 			.fl_flags = FL_FLOCK,
+ 			.fl_type = F_UNLCK,
+ 			.fl_end = OFFSET_MAX,
+ 		};
+-		filp->f_op->flock(filp, F_SETLKW, &fl);
+-		if (fl.fl_ops && fl.fl_ops->fl_release_private)
+-			fl.fl_ops->fl_release_private(&fl);
++		filp->f_op->flock(filp, F_SETLKW, &flock);
++		if (flock.fl_ops && flock.fl_ops->fl_release_private)
++			flock.fl_ops->fl_release_private(&flock);
+ 	}
+ 
+ 	spin_lock(&inode->i_lock);
+diff --git a/fs/mount.h b/fs/mount.h
+index b29e42f..5ea7fdf 100644
+--- a/fs/mount.h
++++ b/fs/mount.h
+@@ -11,7 +11,7 @@ struct mnt_namespace {
+ 	u64			seq;	/* Sequence number to prevent loops */
+ 	wait_queue_head_t poll;
+ 	int event;
+-};
++} __randomize_layout;
+ 
+ struct mnt_pcp {
+ 	int mnt_count;
+@@ -57,7 +57,7 @@ struct mount {
+ 	int mnt_expiry_mark;		/* true if marked for expiry */
+ 	int mnt_pinned;
+ 	struct path mnt_ex_mountpoint;
+-};
++} __randomize_layout;
+ 
+ #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
+ 
+diff --git a/fs/namei.c b/fs/namei.c
+index ccb8000..ac58c5a 100644
+--- a/fs/namei.c
++++ b/fs/namei.c
+@@ -331,17 +331,34 @@ int generic_permission(struct inode *inode, int mask)
+ 	if (ret != -EACCES)
+ 		return ret;
+ 
++#ifdef CONFIG_GRKERNSEC
++	/* we'll block if we have to log due to a denied capability use */
++	if (mask & MAY_NOT_BLOCK)
++		return -ECHILD;
++#endif
++
+ 	if (S_ISDIR(inode->i_mode)) {
+ 		/* DACs are overridable for directories */
+-		if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
+-			return 0;
+ 		if (!(mask & MAY_WRITE))
+-			if (capable_wrt_inode_uidgid(inode,
++			if (capable_wrt_inode_uidgid_nolog(inode,
++				CAP_DAC_OVERRIDE) ||
++			    capable_wrt_inode_uidgid(inode,
+ 						     CAP_DAC_READ_SEARCH))
+ 				return 0;
++		if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
++			return 0;
+ 		return -EACCES;
+ 	}
+ 	/*
++	 * Searching includes executable on directories, else just read.
++	 */
++	mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
++	if (mask == MAY_READ)
++		if (capable_wrt_inode_uidgid_nolog(inode, CAP_DAC_OVERRIDE) ||
++		    capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
++			return 0;
++
++	/*
+ 	 * Read/write DACs are always overridable.
+ 	 * Executable DACs are overridable when there is
+ 	 * at least one exec bit set.
+@@ -350,14 +367,6 @@ int generic_permission(struct inode *inode, int mask)
+ 		if (capable_wrt_inode_uidgid(inode, CAP_DAC_OVERRIDE))
+ 			return 0;
+ 
+-	/*
+-	 * Searching includes executable on directories, else just read.
+-	 */
+-	mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
+-	if (mask == MAY_READ)
+-		if (capable_wrt_inode_uidgid(inode, CAP_DAC_READ_SEARCH))
+-			return 0;
+-
+ 	return -EACCES;
+ }
+ 
+@@ -821,7 +830,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
+ {
+ 	struct dentry *dentry = link->dentry;
+ 	int error;
+-	char *s;
++	const char *s;
+ 
+ 	BUG_ON(nd->flags & LOOKUP_RCU);
+ 
+@@ -842,6 +851,12 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
+ 	if (error)
+ 		goto out_put_nd_path;
+ 
++	if (gr_handle_follow_link(dentry->d_parent->d_inode,
++				  dentry->d_inode, dentry, nd->path.mnt)) {
++		error = -EACCES;
++		goto out_put_nd_path;
++	}	
++
+ 	nd->last_type = LAST_BIND;
+ 	*p = dentry->d_inode->i_op->follow_link(dentry, nd);
+ 	error = PTR_ERR(*p);
+@@ -1131,6 +1146,7 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
+ 
+ static int follow_dotdot_rcu(struct nameidata *nd)
+ {
++	struct inode *inode = nd->inode;
+ 	if (!nd->root.mnt)
+ 		set_root_rcu(nd);
+ 
+@@ -1144,6 +1160,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
+ 			struct dentry *parent = old->d_parent;
+ 			unsigned seq;
+ 
++			inode = parent->d_inode;
+ 			seq = read_seqcount_begin(&parent->d_seq);
+ 			if (read_seqcount_retry(&old->d_seq, nd->seq))
+ 				goto failed;
+@@ -1153,6 +1170,7 @@ static int follow_dotdot_rcu(struct nameidata *nd)
+ 		}
+ 		if (!follow_up_rcu(&nd->path))
+ 			break;
++		inode = nd->path.dentry->d_inode;
+ 		nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
+ 	}
+ 	while (d_mountpoint(nd->path.dentry)) {
+@@ -1162,11 +1180,12 @@ static int follow_dotdot_rcu(struct nameidata *nd)
+ 			break;
+ 		nd->path.mnt = &mounted->mnt;
+ 		nd->path.dentry = mounted->mnt.mnt_root;
++		inode = nd->path.dentry->d_inode;
+ 		nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
+ 		if (!read_seqretry(&mount_lock, nd->m_seq))
+ 			goto failed;
+ 	}
+-	nd->inode = nd->path.dentry->d_inode;
++	nd->inode = inode;
+ 	return 0;
+ 
+ failed:
+@@ -1594,6 +1613,8 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
+ 		if (res)
+ 			break;
+ 		res = walk_component(nd, path, LOOKUP_FOLLOW);
++		if (res >= 0 && gr_handle_symlink_owner(&link, nd->inode))
++			res = -EACCES;
+ 		put_link(nd, &link, cookie);
+ 	} while (res > 0);
+ 
+@@ -1666,7 +1687,7 @@ EXPORT_SYMBOL(full_name_hash);
+ static inline unsigned long hash_name(const char *name, unsigned int *hashp)
+ {
+ 	unsigned long a, b, adata, bdata, mask, hash, len;
+-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
++	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+ 
+ 	hash = a = 0;
+ 	len = -sizeof(unsigned long);
+@@ -1895,7 +1916,14 @@ static int path_init(int dfd, const char *name, unsigned int flags,
+ 	}
+ 
+ 	nd->inode = nd->path.dentry->d_inode;
+-	return 0;
++	if (!(flags & LOOKUP_RCU))
++		return 0;
++	if (likely(!read_seqcount_retry(&nd->path.dentry->d_seq, nd->seq)))
++		return 0;
++	if (!(nd->flags & LOOKUP_ROOT))
++		nd->root.mnt = NULL;
++	rcu_read_unlock();
++	return -ECHILD;
+ }
+ 
+ static inline int lookup_last(struct nameidata *nd, struct path *path)
+@@ -1950,6 +1978,8 @@ static int path_lookupat(int dfd, const char *name,
+ 			if (err)
+ 				break;
+ 			err = lookup_last(nd, &path);
++			if (!err && gr_handle_symlink_owner(&link, nd->inode))
++				err = -EACCES;
+ 			put_link(nd, &link, cookie);
+ 		}
+ 	}
+@@ -1957,6 +1987,13 @@ static int path_lookupat(int dfd, const char *name,
+ 	if (!err)
+ 		err = complete_walk(nd);
+ 
++	if (!err && !(nd->flags & LOOKUP_PARENT)) {
++		if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
++			path_put(&nd->path);
++			err = -ENOENT;
++		}
++	}
++
+ 	if (!err && nd->flags & LOOKUP_DIRECTORY) {
+ 		if (!d_can_lookup(nd->path.dentry)) {
+ 			path_put(&nd->path);
+@@ -1984,8 +2021,15 @@ static int filename_lookup(int dfd, struct filename *name,
+ 		retval = path_lookupat(dfd, name->name,
+ 						flags | LOOKUP_REVAL, nd);
+ 
+-	if (likely(!retval))
++	if (likely(!retval)) {
+ 		audit_inode(name, nd->path.dentry, flags & LOOKUP_PARENT);
++		if (name->name[0] != '/' && nd->path.dentry && nd->inode) {
++			if (!gr_chroot_fchdir(nd->path.dentry, nd->path.mnt)) {
++				path_put(&nd->path);
++				return -ENOENT;
++			}
++		}
++	}
+ 	return retval;
+ }
+ 
+@@ -2560,6 +2604,13 @@ static int may_open(struct path *path, int acc_mode, int flag)
+ 	if (flag & O_NOATIME && !inode_owner_or_capable(inode))
+ 		return -EPERM;
+ 
++	if (gr_handle_rofs_blockwrite(dentry, path->mnt, acc_mode))
++		return -EPERM;
++	if (gr_handle_rawio(inode))
++		return -EPERM;
++	if (!gr_acl_handle_open(dentry, path->mnt, acc_mode))
++		return -EACCES;
++
+ 	return 0;
+ }
+ 
+@@ -2791,7 +2842,7 @@ looked_up:
+  * cleared otherwise prior to returning.
+  */
+ static int lookup_open(struct nameidata *nd, struct path *path,
+-			struct file *file,
++			struct path *link, struct file *file,
+ 			const struct open_flags *op,
+ 			bool got_write, int *opened)
+ {
+@@ -2826,6 +2877,17 @@ static int lookup_open(struct nameidata *nd, struct path *path,
+ 	/* Negative dentry, just create the file */
+ 	if (!dentry->d_inode && (op->open_flag & O_CREAT)) {
+ 		umode_t mode = op->mode;
++
++		if (link && gr_handle_symlink_owner(link, dir->d_inode)) {
++			error = -EACCES;
++			goto out_dput;
++		}
++
++		if (!gr_acl_handle_creat(dentry, dir, nd->path.mnt, op->open_flag, op->acc_mode, mode)) {
++			error = -EACCES;
++			goto out_dput;
++		}
++
+ 		if (!IS_POSIXACL(dir->d_inode))
+ 			mode &= ~current_umask();
+ 		/*
+@@ -2847,6 +2909,8 @@ static int lookup_open(struct nameidata *nd, struct path *path,
+ 				   nd->flags & LOOKUP_EXCL);
+ 		if (error)
+ 			goto out_dput;
++		else
++			gr_handle_create(dentry, nd->path.mnt);
+ 	}
+ out_no_open:
+ 	path->dentry = dentry;
+@@ -2861,7 +2925,7 @@ out_dput:
+ /*
+  * Handle the last step of open()
+  */
+-static int do_last(struct nameidata *nd, struct path *path,
++static int do_last(struct nameidata *nd, struct path *path, struct path *link,
+ 		   struct file *file, const struct open_flags *op,
+ 		   int *opened, struct filename *name)
+ {
+@@ -2911,6 +2975,15 @@ static int do_last(struct nameidata *nd, struct path *path,
+ 		if (error)
+ 			return error;
+ 
++		if (!gr_acl_handle_hidden_file(dir, nd->path.mnt)) {
++			error = -ENOENT;
++			goto out;
++		}
++		if (link && gr_handle_symlink_owner(link, nd->inode)) {
++			error = -EACCES;
++			goto out;
++		}
++
+ 		audit_inode(name, dir, LOOKUP_PARENT);
+ 		error = -EISDIR;
+ 		/* trailing slashes? */
+@@ -2930,7 +3003,7 @@ retry_lookup:
+ 		 */
+ 	}
+ 	mutex_lock(&dir->d_inode->i_mutex);
+-	error = lookup_open(nd, path, file, op, got_write, opened);
++	error = lookup_open(nd, path, link, file, op, got_write, opened);
+ 	mutex_unlock(&dir->d_inode->i_mutex);
+ 
+ 	if (error <= 0) {
+@@ -2954,11 +3027,28 @@ retry_lookup:
+ 		goto finish_open_created;
+ 	}
+ 
++	if (!gr_acl_handle_hidden_file(path->dentry, nd->path.mnt)) {
++		error = -ENOENT;
++		goto exit_dput;
++	}
++	if (link && gr_handle_symlink_owner(link, path->dentry->d_inode)) {
++		error = -EACCES;
++		goto exit_dput;
++	}
++
+ 	/*
+ 	 * create/update audit record if it already exists.
+ 	 */
+-	if (d_is_positive(path->dentry))
++	if (d_is_positive(path->dentry)) {
++		/* only check if O_CREAT is specified, all other checks need to go
++		   into may_open */
++		if (gr_handle_fifo(path->dentry, path->mnt, dir, open_flag, acc_mode)) {
++			error = -EACCES;
++			goto exit_dput;
++		}
++
+ 		audit_inode(name, path->dentry, 0);
++	}
+ 
+ 	/*
+ 	 * If atomic_open() acquired write access it is dropped now due to
+@@ -3000,6 +3090,11 @@ finish_lookup:
+ 			}
+ 		}
+ 		BUG_ON(inode != path->dentry->d_inode);
++		/* if we're resolving a symlink to another symlink */
++		if (link && gr_handle_symlink_owner(link, inode)) {
++			error = -EACCES;
++			goto out;
++		}
+ 		return 1;
+ 	}
+ 
+@@ -3009,7 +3104,6 @@ finish_lookup:
+ 		save_parent.dentry = nd->path.dentry;
+ 		save_parent.mnt = mntget(path->mnt);
+ 		nd->path.dentry = path->dentry;
+-
+ 	}
+ 	nd->inode = inode;
+ 	/* Why this, you ask?  _Now_ we might have grown LOOKUP_JUMPED... */
+@@ -3019,7 +3113,18 @@ finish_open:
+ 		path_put(&save_parent);
+ 		return error;
+ 	}
++
++	if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) {
++		error = -ENOENT;
++		goto out;
++	}
++	if (link && gr_handle_symlink_owner(link, nd->inode)) {
++		error = -EACCES;
++		goto out;
++	}
++
+ 	audit_inode(name, nd->path.dentry, 0);
++
+ 	error = -EISDIR;
+ 	if ((open_flag & O_CREAT) && d_is_dir(nd->path.dentry))
+ 		goto out;
+@@ -3171,7 +3276,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
+ 
+ 	if (unlikely(file->f_flags & __O_TMPFILE)) {
+ 		error = do_tmpfile(dfd, pathname, nd, flags, op, file, &opened);
+-		goto out;
++		goto out2;
+ 	}
+ 
+ 	error = path_init(dfd, pathname->name, flags | LOOKUP_PARENT, nd, &base);
+@@ -3183,7 +3288,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
+ 	if (unlikely(error))
+ 		goto out;
+ 
+-	error = do_last(nd, &path, file, op, &opened, pathname);
++	error = do_last(nd, &path, NULL, file, op, &opened, pathname);
+ 	while (unlikely(error > 0)) { /* trailing symlink */
+ 		struct path link = path;
+ 		void *cookie;
+@@ -3201,7 +3306,7 @@ static struct file *path_openat(int dfd, struct filename *pathname,
+ 		error = follow_link(&link, nd, &cookie);
+ 		if (unlikely(error))
+ 			break;
+-		error = do_last(nd, &path, file, op, &opened, pathname);
++		error = do_last(nd, &path, &link, file, op, &opened, pathname);
+ 		put_link(nd, &link, cookie);
+ 	}
+ out:
+@@ -3209,6 +3314,7 @@ out:
+ 		path_put(&nd->root);
+ 	if (base)
+ 		fput(base);
++out2:
+ 	if (!(opened & FILE_OPENED)) {
+ 		BUG_ON(!error);
+ 		put_filp(file);
+@@ -3301,9 +3407,11 @@ struct dentry *kern_path_create(int dfd, const char *pathname,
+ 		goto unlock;
+ 
+ 	error = -EEXIST;
+-	if (d_is_positive(dentry))
++	if (d_is_positive(dentry)) {
++		if (!gr_acl_handle_hidden_file(dentry, nd.path.mnt))
++			error = -ENOENT;
+ 		goto fail;
+-
++	}
+ 	/*
+ 	 * Special case - lookup gave negative, but... we had foo/bar/
+ 	 * From the vfs_mknod() POV we just have a negative dentry -
+@@ -3355,6 +3463,20 @@ struct dentry *user_path_create(int dfd, const char __user *pathname,
+ }
+ EXPORT_SYMBOL(user_path_create);
+ 
++static struct dentry *user_path_create_with_name(int dfd, const char __user *pathname, struct path *path, struct filename **to, unsigned int lookup_flags)
++{
++	struct filename *tmp = getname(pathname);
++	struct dentry *res;
++	if (IS_ERR(tmp))
++		return ERR_CAST(tmp);
++	res = kern_path_create(dfd, tmp->name, path, lookup_flags);
++	if (IS_ERR(res))
++		putname(tmp);
++	else
++		*to = tmp;
++	return res;
++}
++
+ int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
+ {
+ 	int error = may_create(dir, dentry);
+@@ -3417,6 +3539,17 @@ retry:
+ 
+ 	if (!IS_POSIXACL(path.dentry->d_inode))
+ 		mode &= ~current_umask();
++
++	if (gr_handle_chroot_mknod(dentry, path.mnt, mode)) {
++		error = -EPERM;
++		goto out;
++	}
++
++	if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
++		error = -EACCES;
++		goto out;
++	}
++
+ 	error = security_path_mknod(&path, dentry, mode, dev);
+ 	if (error)
+ 		goto out;
+@@ -3433,6 +3566,8 @@ retry:
+ 			break;
+ 	}
+ out:
++	if (!error)
++		gr_handle_create(dentry, path.mnt);
+ 	done_path_create(&path, dentry);
+ 	if (retry_estale(error, lookup_flags)) {
+ 		lookup_flags |= LOOKUP_REVAL;
+@@ -3485,9 +3620,16 @@ retry:
+ 
+ 	if (!IS_POSIXACL(path.dentry->d_inode))
+ 		mode &= ~current_umask();
++	if (!gr_acl_handle_mkdir(dentry, path.dentry, path.mnt)) {
++		error = -EACCES;
++		goto out;
++	}
+ 	error = security_path_mkdir(&path, dentry, mode);
+ 	if (!error)
+ 		error = vfs_mkdir(path.dentry->d_inode, dentry, mode);
++	if (!error)
++		gr_handle_create(dentry, path.mnt);
++out:
+ 	done_path_create(&path, dentry);
+ 	if (retry_estale(error, lookup_flags)) {
+ 		lookup_flags |= LOOKUP_REVAL;
+@@ -3568,6 +3710,8 @@ static long do_rmdir(int dfd, const char __user *pathname)
+ 	struct filename *name;
+ 	struct dentry *dentry;
+ 	struct nameidata nd;
++	u64 saved_ino = 0;
++	dev_t saved_dev = 0;
+ 	unsigned int lookup_flags = 0;
+ retry:
+ 	name = user_path_parent(dfd, pathname, &nd, lookup_flags);
+@@ -3600,10 +3744,21 @@ retry:
+ 		error = -ENOENT;
+ 		goto exit3;
+ 	}
++
++	saved_ino = gr_get_ino_from_dentry(dentry);
++	saved_dev = gr_get_dev_from_dentry(dentry);
++
++	if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) {
++		error = -EACCES;
++		goto exit3;
++	}
++
+ 	error = security_path_rmdir(&nd.path, dentry);
+ 	if (error)
+ 		goto exit3;
+ 	error = vfs_rmdir(nd.path.dentry->d_inode, dentry);
++	if (!error && (saved_dev || saved_ino))
++		gr_handle_delete(saved_ino, saved_dev);
+ exit3:
+ 	dput(dentry);
+ exit2:
+@@ -3693,6 +3848,8 @@ static long do_unlinkat(int dfd, const char __user *pathname)
+ 	struct nameidata nd;
+ 	struct inode *inode = NULL;
+ 	struct inode *delegated_inode = NULL;
++	u64 saved_ino = 0;
++	dev_t saved_dev = 0;
+ 	unsigned int lookup_flags = 0;
+ retry:
+ 	name = user_path_parent(dfd, pathname, &nd, lookup_flags);
+@@ -3719,10 +3876,22 @@ retry_deleg:
+ 		if (d_is_negative(dentry))
+ 			goto slashes;
+ 		ihold(inode);
++
++		if (inode->i_nlink <= 1) {
++			saved_ino = gr_get_ino_from_dentry(dentry);
++			saved_dev = gr_get_dev_from_dentry(dentry);
++		}
++		if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) {
++			error = -EACCES;
++			goto exit2;
++		}
++
+ 		error = security_path_unlink(&nd.path, dentry);
+ 		if (error)
+ 			goto exit2;
+ 		error = vfs_unlink(nd.path.dentry->d_inode, dentry, &delegated_inode);
++		if (!error && (saved_ino || saved_dev))
++			gr_handle_delete(saved_ino, saved_dev);
+ exit2:
+ 		dput(dentry);
+ 	}
+@@ -3810,9 +3979,17 @@ retry:
+ 	if (IS_ERR(dentry))
+ 		goto out_putname;
+ 
++	if (!gr_acl_handle_symlink(dentry, path.dentry, path.mnt, from)) {
++		error = -EACCES;
++		goto out;
++	}
++
+ 	error = security_path_symlink(&path, dentry, from->name);
+ 	if (!error)
+ 		error = vfs_symlink(path.dentry->d_inode, dentry, from->name);
++	if (!error)
++		gr_handle_create(dentry, path.mnt);
++out:
+ 	done_path_create(&path, dentry);
+ 	if (retry_estale(error, lookup_flags)) {
+ 		lookup_flags |= LOOKUP_REVAL;
+@@ -3915,6 +4092,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
+ 	struct dentry *new_dentry;
+ 	struct path old_path, new_path;
+ 	struct inode *delegated_inode = NULL;
++	struct filename *to = NULL;
+ 	int how = 0;
+ 	int error;
+ 
+@@ -3938,7 +4116,7 @@ retry:
+ 	if (error)
+ 		return error;
+ 
+-	new_dentry = user_path_create(newdfd, newname, &new_path,
++	new_dentry = user_path_create_with_name(newdfd, newname, &new_path, &to,
+ 					(how & LOOKUP_REVAL));
+ 	error = PTR_ERR(new_dentry);
+ 	if (IS_ERR(new_dentry))
+@@ -3950,11 +4128,28 @@ retry:
+ 	error = may_linkat(&old_path);
+ 	if (unlikely(error))
+ 		goto out_dput;
++
++	if (gr_handle_hardlink(old_path.dentry, old_path.mnt,
++			       old_path.dentry->d_inode,
++			       old_path.dentry->d_inode->i_mode, to)) {
++		error = -EACCES;
++		goto out_dput;
++	}
++
++	if (!gr_acl_handle_link(new_dentry, new_path.dentry, new_path.mnt,
++				old_path.dentry, old_path.mnt, to)) {
++		error = -EACCES;
++		goto out_dput;
++	}
++
+ 	error = security_path_link(old_path.dentry, &new_path, new_dentry);
+ 	if (error)
+ 		goto out_dput;
+ 	error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode);
++	if (!error)
++		gr_handle_create(new_dentry, new_path.mnt);
+ out_dput:
++	putname(to);
+ 	done_path_create(&new_path, new_dentry);
+ 	if (delegated_inode) {
+ 		error = break_deleg_wait(&delegated_inode);
+@@ -4241,6 +4436,20 @@ retry_deleg:
+ 	if (new_dentry == trap)
+ 		goto exit5;
+ 
++	if (gr_bad_chroot_rename(old_dentry, oldnd.path.mnt, new_dentry, newnd.path.mnt)) {
++		/* use EXDEV error to cause 'mv' to switch to an alternative
++		 * method for usability
++		 */
++		error = -EXDEV;
++		goto exit5;
++	}
++
++	error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt,
++				     old_dentry, old_dir->d_inode, oldnd.path.mnt,
++				     to);
++	if (error)
++		goto exit5;
++
+ 	error = security_path_rename(&oldnd.path, old_dentry,
+ 				     &newnd.path, new_dentry);
+ 	if (error)
+@@ -4248,6 +4457,9 @@ retry_deleg:
+ 	error = vfs_rename(old_dir->d_inode, old_dentry,
+ 				   new_dir->d_inode, new_dentry,
+ 				   &delegated_inode);
++	if (!error)
++		gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry,
++				 new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0);
+ exit5:
+ 	dput(new_dentry);
+ exit4:
+@@ -4284,6 +4496,8 @@ SYSCALL_DEFINE2(rename, const char __user *, oldname, const char __user *, newna
+ 
+ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link)
+ {
++	char tmpbuf[64];
++	const char *newlink;
+ 	int len;
+ 
+ 	len = PTR_ERR(link);
+@@ -4293,7 +4507,14 @@ int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const c
+ 	len = strlen(link);
+ 	if (len > (unsigned) buflen)
+ 		len = buflen;
+-	if (copy_to_user(buffer, link, len))
++
++	if (len < sizeof(tmpbuf)) {
++		memcpy(tmpbuf, link, len);
++		newlink = tmpbuf;
++	} else
++		newlink = link;
++
++	if (copy_to_user(buffer, newlink, len))
+ 		len = -EFAULT;
+ out:
+ 	return len;
+diff --git a/fs/namespace.c b/fs/namespace.c
+index 2faa7ea..66bad91 100644
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -1373,6 +1373,9 @@ static int do_umount(struct mount *mnt, int flags)
+ 		if (!(sb->s_flags & MS_RDONLY))
+ 			retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
+ 		up_write(&sb->s_umount);
++
++		gr_log_remount(mnt->mnt_devname, retval);
++
+ 		return retval;
+ 	}
+ 
+@@ -1395,6 +1398,9 @@ static int do_umount(struct mount *mnt, int flags)
+ 	}
+ 	unlock_mount_hash();
+ 	namespace_unlock();
++
++	gr_log_unmount(mnt->mnt_devname, retval);
++
+ 	return retval;
+ }
+ 
+@@ -1414,7 +1420,7 @@ static inline bool may_mount(void)
+  * unixes. Our API is identical to OSF/1 to avoid making a mess of AMD
+  */
+ 
+-SYSCALL_DEFINE2(umount, char __user *, name, int, flags)
++SYSCALL_DEFINE2(umount, const char __user *, name, int, flags)
+ {
+ 	struct path path;
+ 	struct mount *mnt;
+@@ -1459,7 +1465,7 @@ out:
+ /*
+  *	The 2.0 compatible umount. No flags.
+  */
+-SYSCALL_DEFINE1(oldumount, char __user *, name)
++SYSCALL_DEFINE1(oldumount, const char __user *, name)
+ {
+ 	return sys_umount(name, 0);
+ }
+@@ -2514,6 +2520,16 @@ long do_mount(const char *dev_name, const char *dir_name,
+ 		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
+ 		   MS_STRICTATIME);
+ 
++	if (gr_handle_rofs_mount(path.dentry, path.mnt, mnt_flags)) {
++		retval = -EPERM;
++		goto dput_out;
++	}
++
++	if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) {
++		retval = -EPERM;
++		goto dput_out;
++	}
++
+ 	if (flags & MS_REMOUNT)
+ 		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
+ 				    data_page);
+@@ -2528,6 +2544,9 @@ long do_mount(const char *dev_name, const char *dir_name,
+ 				      dev_name, data_page);
+ dput_out:
+ 	path_put(&path);
++
++	gr_log_mount(dev_name, dir_name, retval);
++
+ 	return retval;
+ }
+ 
+@@ -2545,7 +2564,7 @@ static void free_mnt_ns(struct mnt_namespace *ns)
+  * number incrementing at 10Ghz will take 12,427 years to wrap which
+  * is effectively never, so we can ignore the possibility.
+  */
+-static atomic64_t mnt_ns_seq = ATOMIC64_INIT(1);
++static atomic64_unchecked_t mnt_ns_seq = ATOMIC64_INIT(1);
+ 
+ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
+ {
+@@ -2560,7 +2579,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
+ 		kfree(new_ns);
+ 		return ERR_PTR(ret);
+ 	}
+-	new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
++	new_ns->seq = atomic64_inc_return_unchecked(&mnt_ns_seq);
+ 	atomic_set(&new_ns->count, 1);
+ 	new_ns->root = NULL;
+ 	INIT_LIST_HEAD(&new_ns->list);
+@@ -2570,7 +2589,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
+ 	return new_ns;
+ }
+ 
+-struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
++__latent_entropy struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
+ 		struct user_namespace *user_ns, struct fs_struct *new_fs)
+ {
+ 	struct mnt_namespace *new_ns;
+@@ -2691,8 +2710,8 @@ struct dentry *mount_subtree(struct vfsmount *mnt, const char *name)
+ }
+ EXPORT_SYMBOL(mount_subtree);
+ 
+-SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
+-		char __user *, type, unsigned long, flags, void __user *, data)
++SYSCALL_DEFINE5(mount, const char __user *, dev_name, const char __user *, dir_name,
++		const char __user *, type, unsigned long, flags, void __user *, data)
+ {
+ 	int ret;
+ 	char *kernel_type;
+@@ -2805,6 +2824,11 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
+ 	if (error)
+ 		goto out2;
+ 
++	if (gr_handle_chroot_pivot()) {
++		error = -EPERM;
++		goto out2;
++	}
++
+ 	get_fs_root(current->fs, &root);
+ 	old_mp = lock_mount(&old);
+ 	error = PTR_ERR(old_mp);
+@@ -3082,7 +3106,7 @@ static int mntns_install(struct nsproxy *nsproxy, void *ns)
+ 	    !ns_capable(current_user_ns(), CAP_SYS_ADMIN))
+ 		return -EPERM;
+ 
+-	if (fs->users != 1)
++	if (atomic_read(&fs->users) != 1)
+ 		return -EINVAL;
+ 
+ 	get_mnt_ns(mnt_ns);
+diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
+index 02f8d09..a5c25d1 100644
+--- a/fs/nfs/callback_xdr.c
++++ b/fs/nfs/callback_xdr.c
+@@ -51,7 +51,7 @@ struct callback_op {
+ 	callback_decode_arg_t decode_args;
+ 	callback_encode_res_t encode_res;
+ 	long res_maxsize;
+-};
++} __do_const;
+ 
+ static struct callback_op callback_ops[];
+ 
+diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
+index 6659ce5..1e6de9b 100644
+--- a/fs/nfs/inode.c
++++ b/fs/nfs/inode.c
+@@ -1189,16 +1189,16 @@ static int nfs_size_need_update(const struct inode *inode, const struct nfs_fatt
+ 	return nfs_size_to_loff_t(fattr->size) > i_size_read(inode);
+ }
+ 
+-static atomic_long_t nfs_attr_generation_counter;
++static atomic_long_unchecked_t nfs_attr_generation_counter;
+ 
+ static unsigned long nfs_read_attr_generation_counter(void)
+ {
+-	return atomic_long_read(&nfs_attr_generation_counter);
++	return atomic_long_read_unchecked(&nfs_attr_generation_counter);
+ }
+ 
+ unsigned long nfs_inc_attr_generation_counter(void)
+ {
+-	return atomic_long_inc_return(&nfs_attr_generation_counter);
++	return atomic_long_inc_return_unchecked(&nfs_attr_generation_counter);
+ }
+ 
+ void nfs_fattr_init(struct nfs_fattr *fattr)
+diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
+index 86f5d3e..ae2d35a 100644
+--- a/fs/nfsd/nfs4proc.c
++++ b/fs/nfsd/nfs4proc.c
+@@ -1169,7 +1169,7 @@ struct nfsd4_operation {
+ 	nfsd4op_rsize op_rsize_bop;
+ 	stateid_getter op_get_currentstateid;
+ 	stateid_setter op_set_currentstateid;
+-};
++} __do_const;
+ 
+ static struct nfsd4_operation nfsd4_ops[];
+ 
+diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
+index dd1afa3..509afd1 100644
+--- a/fs/nfsd/nfs4xdr.c
++++ b/fs/nfsd/nfs4xdr.c
+@@ -1542,7 +1542,7 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p)
+ 
+ typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *);
+ 
+-static nfsd4_dec nfsd4_dec_ops[] = {
++static const nfsd4_dec nfsd4_dec_ops[] = {
+ 	[OP_ACCESS]		= (nfsd4_dec)nfsd4_decode_access,
+ 	[OP_CLOSE]		= (nfsd4_dec)nfsd4_decode_close,
+ 	[OP_COMMIT]		= (nfsd4_dec)nfsd4_decode_commit,
+diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
+index 6040da8..e8607ce 100644
+--- a/fs/nfsd/nfscache.c
++++ b/fs/nfsd/nfscache.c
+@@ -518,14 +518,17 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
+ {
+ 	struct svc_cacherep *rp = rqstp->rq_cacherep;
+ 	struct kvec	*resv = &rqstp->rq_res.head[0], *cachv;
+-	int		len;
++	long		len;
+ 	size_t		bufsize = 0;
+ 
+ 	if (!rp)
+ 		return;
+ 
+-	len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
+-	len >>= 2;
++	if (statp) {
++		len = (char*)statp - (char*)resv->iov_base;
++		len = resv->iov_len - len;
++		len >>= 2;
++	}
+ 
+ 	/* Don't cache excessive amounts of data and XDR failures */
+ 	if (!statp || len > (256 >> 2)) {
+@@ -536,7 +539,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
+ 	switch (cachetype) {
+ 	case RC_REPLSTAT:
+ 		if (len != 1)
+-			printk("nfsd: RC_REPLSTAT/reply len %d!\n",len);
++			printk("nfsd: RC_REPLSTAT/reply len %ld!\n",len);
+ 		rp->c_replstat = *statp;
+ 		break;
+ 	case RC_REPLBUFF:
+diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
+index eea5ad1..5a84ac7 100644
+--- a/fs/nfsd/vfs.c
++++ b/fs/nfsd/vfs.c
+@@ -843,7 +843,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
+ 	} else {
+ 		oldfs = get_fs();
+ 		set_fs(KERNEL_DS);
+-		host_err = vfs_readv(file, (struct iovec __user *)vec, vlen, &offset);
++		host_err = vfs_readv(file, (struct iovec __force_user *)vec, vlen, &offset);
+ 		set_fs(oldfs);
+ 	}
+ 
+@@ -934,7 +934,7 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
+ 
+ 	/* Write the data. */
+ 	oldfs = get_fs(); set_fs(KERNEL_DS);
+-	host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos);
++	host_err = vfs_writev(file, (struct iovec __force_user *)vec, vlen, &pos);
+ 	set_fs(oldfs);
+ 	if (host_err < 0)
+ 		goto out_nfserr;
+@@ -1479,7 +1479,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
+ 	 */
+ 
+ 	oldfs = get_fs(); set_fs(KERNEL_DS);
+-	host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
++	host_err = inode->i_op->readlink(path.dentry, (char __force_user *)buf, *lenp);
+ 	set_fs(oldfs);
+ 
+ 	if (host_err < 0)
+diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
+index 52ccd34..7a6b202 100644
+--- a/fs/nls/nls_base.c
++++ b/fs/nls/nls_base.c
+@@ -234,21 +234,25 @@ EXPORT_SYMBOL(utf16s_to_utf8s);
+ 
+ int __register_nls(struct nls_table *nls, struct module *owner)
+ {
+-	struct nls_table ** tmp = &tables;
++	struct nls_table *tmp = tables;
+ 
+ 	if (nls->next)
+ 		return -EBUSY;
+ 
+-	nls->owner = owner;
++	pax_open_kernel();
++	*(void **)&nls->owner = owner;
++	pax_close_kernel();
+ 	spin_lock(&nls_lock);
+-	while (*tmp) {
+-		if (nls == *tmp) {
++	while (tmp) {
++		if (nls == tmp) {
+ 			spin_unlock(&nls_lock);
+ 			return -EBUSY;
+ 		}
+-		tmp = &(*tmp)->next;
++		tmp = tmp->next;
+ 	}
+-	nls->next = tables;
++	pax_open_kernel();
++	*(struct nls_table **)&nls->next = tables;
++	pax_close_kernel();
+ 	tables = nls;
+ 	spin_unlock(&nls_lock);
+ 	return 0;	
+@@ -257,12 +261,14 @@ EXPORT_SYMBOL(__register_nls);
+ 
+ int unregister_nls(struct nls_table * nls)
+ {
+-	struct nls_table ** tmp = &tables;
++	struct nls_table * const * tmp = &tables;
+ 
+ 	spin_lock(&nls_lock);
+ 	while (*tmp) {
+ 		if (nls == *tmp) {
+-			*tmp = nls->next;
++			pax_open_kernel();
++			*(struct nls_table **)tmp = nls->next;
++			pax_close_kernel();
+ 			spin_unlock(&nls_lock);
+ 			return 0;
+ 		}
+@@ -272,7 +278,7 @@ int unregister_nls(struct nls_table * nls)
+ 	return -EINVAL;
+ }
+ 
+-static struct nls_table *find_nls(char *charset)
++static struct nls_table *find_nls(const char *charset)
+ {
+ 	struct nls_table *nls;
+ 	spin_lock(&nls_lock);
+@@ -288,7 +294,7 @@ static struct nls_table *find_nls(char *charset)
+ 	return nls;
+ }
+ 
+-struct nls_table *load_nls(char *charset)
++struct nls_table *load_nls(const char *charset)
+ {
+ 	return try_then_request_module(find_nls(charset), "nls_%s", charset);
+ }
+diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
+index 162b3f1..6076a7c 100644
+--- a/fs/nls/nls_euc-jp.c
++++ b/fs/nls/nls_euc-jp.c
+@@ -560,8 +560,10 @@ static int __init init_nls_euc_jp(void)
+ 	p_nls = load_nls("cp932");
+ 
+ 	if (p_nls) {
+-		table.charset2upper = p_nls->charset2upper;
+-		table.charset2lower = p_nls->charset2lower;
++		pax_open_kernel();
++		*(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
++		*(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
++		pax_close_kernel();
+ 		return register_nls(&table);
+ 	}
+ 
+diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
+index a80a741..7b96e1b 100644
+--- a/fs/nls/nls_koi8-ru.c
++++ b/fs/nls/nls_koi8-ru.c
+@@ -62,8 +62,10 @@ static int __init init_nls_koi8_ru(void)
+ 	p_nls = load_nls("koi8-u");
+ 
+ 	if (p_nls) {
+-		table.charset2upper = p_nls->charset2upper;
+-		table.charset2lower = p_nls->charset2lower;
++		pax_open_kernel();
++		*(const unsigned char **)&table.charset2upper = p_nls->charset2upper;
++		*(const unsigned char **)&table.charset2lower = p_nls->charset2lower;
++		pax_close_kernel();
+ 		return register_nls(&table);
+ 	}
+ 
+diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
+index de6323e..4931489 100644
+--- a/fs/notify/fanotify/fanotify_user.c
++++ b/fs/notify/fanotify/fanotify_user.c
+@@ -251,8 +251,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
+ 
+ 	fd = fanotify_event_metadata.fd;
+ 	ret = -EFAULT;
+-	if (copy_to_user(buf, &fanotify_event_metadata,
+-			 fanotify_event_metadata.event_len))
++	if (fanotify_event_metadata.event_len > sizeof fanotify_event_metadata ||
++	    copy_to_user(buf, &fanotify_event_metadata, fanotify_event_metadata.event_len))
+ 		goto out_close_fd;
+ 
+ 	ret = prepare_for_access_response(group, event, fd);
+@@ -742,6 +742,8 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
+ 	oevent->path.mnt = NULL;
+ 	oevent->path.dentry = NULL;
+ 
++	if (force_o_largefile())
++		event_f_flags |= O_LARGEFILE;
+ 	group->fanotify_data.f_flags = event_f_flags;
+ #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
+ 	oevent->response = 0;
+diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
+index 43ab1e1..9c8187e 100644
+--- a/fs/notify/inotify/inotify_fsnotify.c
++++ b/fs/notify/inotify/inotify_fsnotify.c
+@@ -165,8 +165,10 @@ static void inotify_free_group_priv(struct fsnotify_group *group)
+ 	/* ideally the idr is empty and we won't hit the BUG in the callback */
+ 	idr_for_each(&group->inotify_data.idr, idr_callback, group);
+ 	idr_destroy(&group->inotify_data.idr);
+-	atomic_dec(&group->inotify_data.user->inotify_devs);
+-	free_uid(group->inotify_data.user);
++	if (group->inotify_data.user) {
++		atomic_dec(&group->inotify_data.user->inotify_devs);
++		free_uid(group->inotify_data.user);
++	}
+ }
+ 
+ static void inotify_free_event(struct fsnotify_event *fsn_event)
+diff --git a/fs/notify/notification.c b/fs/notify/notification.c
+index 1e58402..bb2d6f4 100644
+--- a/fs/notify/notification.c
++++ b/fs/notify/notification.c
+@@ -48,7 +48,7 @@
+ #include <linux/fsnotify_backend.h>
+ #include "fsnotify.h"
+ 
+-static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
++static atomic_unchecked_t fsnotify_sync_cookie = ATOMIC_INIT(0);
+ 
+ /**
+  * fsnotify_get_cookie - return a unique cookie for use in synchronizing events.
+@@ -56,7 +56,7 @@ static atomic_t fsnotify_sync_cookie = ATOMIC_INIT(0);
+  */
+ u32 fsnotify_get_cookie(void)
+ {
+-	return atomic_inc_return(&fsnotify_sync_cookie);
++	return atomic_inc_return_unchecked(&fsnotify_sync_cookie);
+ }
+ EXPORT_SYMBOL_GPL(fsnotify_get_cookie);
+ 
+diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
+index 9e38daf..5727cae 100644
+--- a/fs/ntfs/dir.c
++++ b/fs/ntfs/dir.c
+@@ -1310,7 +1310,7 @@ find_next_index_buffer:
+ 	ia = (INDEX_ALLOCATION*)(kaddr + (ia_pos & ~PAGE_CACHE_MASK &
+ 			~(s64)(ndir->itype.index.block_size - 1)));
+ 	/* Bounds checks. */
+-	if (unlikely((u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
++	if (unlikely(!kaddr || (u8*)ia < kaddr || (u8*)ia > kaddr + PAGE_CACHE_SIZE)) {
+ 		ntfs_error(sb, "Out of bounds check failed. Corrupt directory "
+ 				"inode 0x%lx or driver bug.", vdir->i_ino);
+ 		goto err_out;
+diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
+index 86ddab9..cedba51 100644
+--- a/fs/ntfs/file.c
++++ b/fs/ntfs/file.c
+@@ -1282,7 +1282,7 @@ static inline size_t ntfs_copy_from_user(struct page **pages,
+ 	char *addr;
+ 	size_t total = 0;
+ 	unsigned len;
+-	int left;
++	unsigned left;
+ 
+ 	do {
+ 		len = PAGE_CACHE_SIZE - ofs;
+diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
+index 82650d5..db37dcf 100644
+--- a/fs/ntfs/super.c
++++ b/fs/ntfs/super.c
+@@ -685,7 +685,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
+ 		if (!silent)
+ 			ntfs_error(sb, "Primary boot sector is invalid.");
+ 	} else if (!silent)
+-		ntfs_error(sb, read_err_str, "primary");
++		ntfs_error(sb, read_err_str, "%s", "primary");
+ 	if (!(NTFS_SB(sb)->on_errors & ON_ERRORS_RECOVER)) {
+ 		if (bh_primary)
+ 			brelse(bh_primary);
+@@ -701,7 +701,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
+ 			goto hotfix_primary_boot_sector;
+ 		brelse(bh_backup);
+ 	} else if (!silent)
+-		ntfs_error(sb, read_err_str, "backup");
++		ntfs_error(sb, read_err_str, "%s", "backup");
+ 	/* Try to read NT3.51- backup boot sector. */
+ 	if ((bh_backup = sb_bread(sb, nr_blocks >> 1))) {
+ 		if (is_boot_sector_ntfs(sb, (NTFS_BOOT_SECTOR*)
+@@ -712,7 +712,7 @@ static struct buffer_head *read_ntfs_boot_sector(struct super_block *sb,
+ 					"sector.");
+ 		brelse(bh_backup);
+ 	} else if (!silent)
+-		ntfs_error(sb, read_err_str, "backup");
++		ntfs_error(sb, read_err_str, "%s", "backup");
+ 	/* We failed. Cleanup and return. */
+ 	if (bh_primary)
+ 		brelse(bh_primary);
+diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
+index 0440134..d52c93a 100644
+--- a/fs/ocfs2/localalloc.c
++++ b/fs/ocfs2/localalloc.c
+@@ -1320,7 +1320,7 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
+ 		goto bail;
+ 	}
+ 
+-	atomic_inc(&osb->alloc_stats.moves);
++	atomic_inc_unchecked(&osb->alloc_stats.moves);
+ 
+ bail:
+ 	if (handle)
+diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
+index b242762..04fc642 100644
+--- a/fs/ocfs2/namei.c
++++ b/fs/ocfs2/namei.c
+@@ -166,7 +166,7 @@ bail_add:
+ 		 * NOTE: This dentry already has ->d_op set from
+ 		 * ocfs2_get_parent() and ocfs2_get_dentry()
+ 		 */
+-		if (ret)
++		if (!IS_ERR_OR_NULL(ret))
+ 			dentry = ret;
+ 
+ 		status = ocfs2_dentry_attach_lock(dentry, inode,
+diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
+index 553f53c..aaf5133 100644
+--- a/fs/ocfs2/ocfs2.h
++++ b/fs/ocfs2/ocfs2.h
+@@ -235,11 +235,11 @@ enum ocfs2_vol_state
+ 
+ struct ocfs2_alloc_stats
+ {
+-	atomic_t moves;
+-	atomic_t local_data;
+-	atomic_t bitmap_data;
+-	atomic_t bg_allocs;
+-	atomic_t bg_extends;
++	atomic_unchecked_t moves;
++	atomic_unchecked_t local_data;
++	atomic_unchecked_t bitmap_data;
++	atomic_unchecked_t bg_allocs;
++	atomic_unchecked_t bg_extends;
+ };
+ 
+ enum ocfs2_local_alloc_state
+diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
+index 6ba4bcb..88a6f7d 100644
+--- a/fs/ocfs2/refcounttree.c
++++ b/fs/ocfs2/refcounttree.c
+@@ -4279,7 +4279,7 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir,
+ 	error = posix_acl_create(dir, &mode, &default_acl, &acl);
+ 	if (error) {
+ 		mlog_errno(error);
+-		goto out;
++		return error;
+ 	}
+ 
+ 	error = ocfs2_create_inode_in_orphan(dir, mode,
+diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
+index 47ae266..6e8b793 100644
+--- a/fs/ocfs2/suballoc.c
++++ b/fs/ocfs2/suballoc.c
+@@ -866,7 +866,7 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
+ 				mlog_errno(status);
+ 			goto bail;
+ 		}
+-		atomic_inc(&osb->alloc_stats.bg_extends);
++		atomic_inc_unchecked(&osb->alloc_stats.bg_extends);
+ 
+ 		/* You should never ask for this much metadata */
+ 		BUG_ON(bits_wanted >
+@@ -1992,7 +1992,7 @@ int ocfs2_claim_metadata(handle_t *handle,
+ 		mlog_errno(status);
+ 		goto bail;
+ 	}
+-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
++	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+ 
+ 	*suballoc_loc = res.sr_bg_blkno;
+ 	*suballoc_bit_start = res.sr_bit_offset;
+@@ -2156,7 +2156,7 @@ int ocfs2_claim_new_inode_at_loc(handle_t *handle,
+ 	trace_ocfs2_claim_new_inode_at_loc((unsigned long long)di_blkno,
+ 					   res->sr_bits);
+ 
+-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
++	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+ 
+ 	BUG_ON(res->sr_bits != 1);
+ 
+@@ -2198,7 +2198,7 @@ int ocfs2_claim_new_inode(handle_t *handle,
+ 		mlog_errno(status);
+ 		goto bail;
+ 	}
+-	atomic_inc(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
++	atomic_inc_unchecked(&OCFS2_SB(ac->ac_inode->i_sb)->alloc_stats.bg_allocs);
+ 
+ 	BUG_ON(res.sr_bits != 1);
+ 
+@@ -2302,7 +2302,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
+ 						      cluster_start,
+ 						      num_clusters);
+ 		if (!status)
+-			atomic_inc(&osb->alloc_stats.local_data);
++			atomic_inc_unchecked(&osb->alloc_stats.local_data);
+ 	} else {
+ 		if (min_clusters > (osb->bitmap_cpg - 1)) {
+ 			/* The only paths asking for contiguousness
+@@ -2328,7 +2328,7 @@ int __ocfs2_claim_clusters(handle_t *handle,
+ 				ocfs2_desc_bitmap_to_cluster_off(ac->ac_inode,
+ 								 res.sr_bg_blkno,
+ 								 res.sr_bit_offset);
+-			atomic_inc(&osb->alloc_stats.bitmap_data);
++			atomic_inc_unchecked(&osb->alloc_stats.bitmap_data);
+ 			*num_clusters = res.sr_bits;
+ 		}
+ 	}
+diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
+index 49d84f8..4807e0b 100644
+--- a/fs/ocfs2/super.c
++++ b/fs/ocfs2/super.c
+@@ -300,11 +300,11 @@ static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len)
+ 			"%10s => GlobalAllocs: %d  LocalAllocs: %d  "
+ 			"SubAllocs: %d  LAWinMoves: %d  SAExtends: %d\n",
+ 			"Stats",
+-			atomic_read(&osb->alloc_stats.bitmap_data),
+-			atomic_read(&osb->alloc_stats.local_data),
+-			atomic_read(&osb->alloc_stats.bg_allocs),
+-			atomic_read(&osb->alloc_stats.moves),
+-			atomic_read(&osb->alloc_stats.bg_extends));
++			atomic_read_unchecked(&osb->alloc_stats.bitmap_data),
++			atomic_read_unchecked(&osb->alloc_stats.local_data),
++			atomic_read_unchecked(&osb->alloc_stats.bg_allocs),
++			atomic_read_unchecked(&osb->alloc_stats.moves),
++			atomic_read_unchecked(&osb->alloc_stats.bg_extends));
+ 
+ 	out += snprintf(buf + out, len - out,
+ 			"%10s => State: %u  Descriptor: %llu  Size: %u bits  "
+@@ -2123,11 +2123,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
+ 	spin_lock_init(&osb->osb_xattr_lock);
+ 	ocfs2_init_steal_slots(osb);
+ 
+-	atomic_set(&osb->alloc_stats.moves, 0);
+-	atomic_set(&osb->alloc_stats.local_data, 0);
+-	atomic_set(&osb->alloc_stats.bitmap_data, 0);
+-	atomic_set(&osb->alloc_stats.bg_allocs, 0);
+-	atomic_set(&osb->alloc_stats.bg_extends, 0);
++	atomic_set_unchecked(&osb->alloc_stats.moves, 0);
++	atomic_set_unchecked(&osb->alloc_stats.local_data, 0);
++	atomic_set_unchecked(&osb->alloc_stats.bitmap_data, 0);
++	atomic_set_unchecked(&osb->alloc_stats.bg_allocs, 0);
++	atomic_set_unchecked(&osb->alloc_stats.bg_extends, 0);
+ 
+ 	/* Copy the blockcheck stats from the superblock probe */
+ 	osb->osb_ecc_stats = *stats;
+diff --git a/fs/open.c b/fs/open.c
+index 17679f2..85f4981 100644
+--- a/fs/open.c
++++ b/fs/open.c
+@@ -32,6 +32,8 @@
+ #include <linux/dnotify.h>
+ #include <linux/compat.h>
+ 
++#define CREATE_TRACE_POINTS
++#include <trace/events/fs.h>
+ #include "internal.h"
+ 
+ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
+@@ -103,6 +105,8 @@ long vfs_truncate(struct path *path, loff_t length)
+ 	error = locks_verify_truncate(inode, NULL, length);
+ 	if (!error)
+ 		error = security_path_truncate(path);
++	if (!error && !gr_acl_handle_truncate(path->dentry, path->mnt))
++		error = -EACCES;
+ 	if (!error)
+ 		error = do_truncate(path->dentry, length, 0, NULL);
+ 
+@@ -187,6 +191,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
+ 	error = locks_verify_truncate(inode, f.file, length);
+ 	if (!error)
+ 		error = security_path_truncate(&f.file->f_path);
++	if (!error && !gr_acl_handle_truncate(f.file->f_path.dentry, f.file->f_path.mnt))
++		error = -EACCES;
+ 	if (!error)
+ 		error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
+ 	sb_end_write(inode->i_sb);
+@@ -361,6 +367,9 @@ retry:
+ 	if (__mnt_is_readonly(path.mnt))
+ 		res = -EROFS;
+ 
++	if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode))
++		res = -EACCES;
++
+ out_path_release:
+ 	path_put(&path);
+ 	if (retry_estale(res, lookup_flags)) {
+@@ -392,6 +401,8 @@ retry:
+ 	if (error)
+ 		goto dput_and_out;
+ 
++	gr_log_chdir(path.dentry, path.mnt);
++
+ 	set_fs_pwd(current->fs, &path);
+ 
+ dput_and_out:
+@@ -421,6 +432,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd)
+ 		goto out_putf;
+ 
+ 	error = inode_permission(inode, MAY_EXEC | MAY_CHDIR);
++
++	if (!error && !gr_chroot_fchdir(f.file->f_path.dentry, f.file->f_path.mnt))
++		error = -EPERM;
++
++	if (!error)
++		gr_log_chdir(f.file->f_path.dentry, f.file->f_path.mnt);
++
+ 	if (!error)
+ 		set_fs_pwd(current->fs, &f.file->f_path);
+ out_putf:
+@@ -450,7 +468,13 @@ retry:
+ 	if (error)
+ 		goto dput_and_out;
+ 
++	if (gr_handle_chroot_chroot(path.dentry, path.mnt))
++		goto dput_and_out;
++
+ 	set_fs_root(current->fs, &path);
++
++	gr_handle_chroot_chdir(&path);
++
+ 	error = 0;
+ dput_and_out:
+ 	path_put(&path);
+@@ -474,6 +498,16 @@ static int chmod_common(struct path *path, umode_t mode)
+ 		return error;
+ retry_deleg:
+ 	mutex_lock(&inode->i_mutex);
++
++	if (!gr_acl_handle_chmod(path->dentry, path->mnt, &mode)) {
++		error = -EACCES;
++		goto out_unlock;
++	}
++	if (gr_handle_chroot_chmod(path->dentry, path->mnt, mode)) {
++		error = -EACCES;
++		goto out_unlock;
++	}
++
+ 	error = security_path_chmod(path, mode);
+ 	if (error)
+ 		goto out_unlock;
+@@ -539,6 +573,9 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
+ 	uid = make_kuid(current_user_ns(), user);
+ 	gid = make_kgid(current_user_ns(), group);
+ 
++	if (!gr_acl_handle_chown(path->dentry, path->mnt))
++		return -EACCES;
++
+ retry_deleg:
+ 	newattrs.ia_valid =  ATTR_CTIME;
+ 	if (user != (uid_t) -1) {
+@@ -982,6 +1019,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, umode_t mode)
+ 		} else {
+ 			fsnotify_open(f);
+ 			fd_install(fd, f);
++			trace_do_sys_open(tmp->name, flags, mode);
+ 		}
+ 	}
+ 	putname(tmp);
+diff --git a/fs/pipe.c b/fs/pipe.c
+index 78fd0d0..e829d3e 100644
+--- a/fs/pipe.c
++++ b/fs/pipe.c
+@@ -37,7 +37,7 @@ unsigned int pipe_max_size = 1048576;
+ /*
+  * Minimum pipe size, as required by POSIX
+  */
+-unsigned int pipe_min_size = PAGE_SIZE;
++unsigned int pipe_min_size __read_only = PAGE_SIZE;
+ 
+ /*
+  * We use a start+len construction, which provides full use of the 
+@@ -56,7 +56,7 @@ unsigned int pipe_min_size = PAGE_SIZE;
+ 
+ static void pipe_lock_nested(struct pipe_inode_info *pipe, int subclass)
+ {
+-	if (pipe->files)
++	if (atomic_read(&pipe->files))
+ 		mutex_lock_nested(&pipe->mutex, subclass);
+ }
+ 
+@@ -71,7 +71,7 @@ EXPORT_SYMBOL(pipe_lock);
+ 
+ void pipe_unlock(struct pipe_inode_info *pipe)
+ {
+-	if (pipe->files)
++	if (atomic_read(&pipe->files))
+ 		mutex_unlock(&pipe->mutex);
+ }
+ EXPORT_SYMBOL(pipe_unlock);
+@@ -117,25 +117,27 @@ void pipe_wait(struct pipe_inode_info *pipe)
+ }
+ 
+ static int
+-pipe_iov_copy_from_user(void *to, struct iovec *iov, unsigned long len,
+-			int atomic)
++pipe_iov_copy_from_user(void *addr, int *offset, struct iovec *iov,
++			size_t *remaining, int atomic)
+ {
+ 	unsigned long copy;
+ 
+-	while (len > 0) {
++	while (*remaining > 0) {
+ 		while (!iov->iov_len)
+ 			iov++;
+-		copy = min_t(unsigned long, len, iov->iov_len);
++		copy = min_t(unsigned long, *remaining, iov->iov_len);
+ 
+ 		if (atomic) {
+-			if (__copy_from_user_inatomic(to, iov->iov_base, copy))
++			if (__copy_from_user_inatomic(addr + *offset,
++						      iov->iov_base, copy))
+ 				return -EFAULT;
+ 		} else {
+-			if (copy_from_user(to, iov->iov_base, copy))
++			if (copy_from_user(addr + *offset,
++					   iov->iov_base, copy))
+ 				return -EFAULT;
+ 		}
+-		to += copy;
+-		len -= copy;
++		*offset += copy;
++		*remaining -= copy;
+ 		iov->iov_base += copy;
+ 		iov->iov_len -= copy;
+ 	}
+@@ -143,25 +145,27 @@ pipe_iov_copy_from_user(void *to, struct iovec *iov, unsigned long len,
+ }
+ 
+ static int
+-pipe_iov_copy_to_user(struct iovec *iov, const void *from, unsigned long len,
+-		      int atomic)
++pipe_iov_copy_to_user(struct iovec *iov, void *addr, int *offset,
++		      size_t *remaining, int atomic)
+ {
+ 	unsigned long copy;
+ 
+-	while (len > 0) {
++	while (*remaining > 0) {
+ 		while (!iov->iov_len)
+ 			iov++;
+-		copy = min_t(unsigned long, len, iov->iov_len);
++		copy = min_t(unsigned long, *remaining, iov->iov_len);
+ 
+ 		if (atomic) {
+-			if (__copy_to_user_inatomic(iov->iov_base, from, copy))
++			if (__copy_to_user_inatomic(iov->iov_base,
++						    addr + *offset, copy))
+ 				return -EFAULT;
+ 		} else {
+-			if (copy_to_user(iov->iov_base, from, copy))
++			if (copy_to_user(iov->iov_base,
++					 addr + *offset, copy))
+ 				return -EFAULT;
+ 		}
+-		from += copy;
+-		len -= copy;
++		*offset += copy;
++		*remaining -= copy;
+ 		iov->iov_base += copy;
+ 		iov->iov_len -= copy;
+ 	}
+@@ -395,7 +399,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
+ 			struct pipe_buffer *buf = pipe->bufs + curbuf;
+ 			const struct pipe_buf_operations *ops = buf->ops;
+ 			void *addr;
+-			size_t chars = buf->len;
++			size_t chars = buf->len, remaining;
+ 			int error, atomic;
+ 
+ 			if (chars > total_len)
+@@ -409,9 +413,11 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
+ 			}
+ 
+ 			atomic = !iov_fault_in_pages_write(iov, chars);
++			remaining = chars;
+ redo:
+ 			addr = ops->map(pipe, buf, atomic);
+-			error = pipe_iov_copy_to_user(iov, addr + buf->offset, chars, atomic);
++			error = pipe_iov_copy_to_user(iov, addr, &buf->offset,
++						      &remaining, atomic);
+ 			ops->unmap(pipe, buf, addr);
+ 			if (unlikely(error)) {
+ 				/*
+@@ -426,7 +432,6 @@ redo:
+ 				break;
+ 			}
+ 			ret += chars;
+-			buf->offset += chars;
+ 			buf->len -= chars;
+ 
+ 			/* Was it a packet buffer? Clean up and exit */
+@@ -449,9 +454,9 @@ redo:
+ 		}
+ 		if (bufs)	/* More to do? */
+ 			continue;
+-		if (!pipe->writers)
++		if (!atomic_read(&pipe->writers))
+ 			break;
+-		if (!pipe->waiting_writers) {
++		if (!atomic_read(&pipe->waiting_writers)) {
+ 			/* syscall merging: Usually we must not sleep
+ 			 * if O_NONBLOCK is set, or if we got some data.
+ 			 * But if a writer sleeps in kernel space, then
+@@ -513,7 +518,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
+ 	ret = 0;
+ 	__pipe_lock(pipe);
+ 
+-	if (!pipe->readers) {
++	if (!atomic_read(&pipe->readers)) {
+ 		send_sig(SIGPIPE, current, 0);
+ 		ret = -EPIPE;
+ 		goto out;
+@@ -531,6 +536,7 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
+ 		if (ops->can_merge && offset + chars <= PAGE_SIZE) {
+ 			int error, atomic = 1;
+ 			void *addr;
++			size_t remaining = chars;
+ 
+ 			error = ops->confirm(pipe, buf);
+ 			if (error)
+@@ -539,8 +545,8 @@ pipe_write(struct kiocb *iocb, const struct iovec *_iov,
+ 			iov_fault_in_pages_read(iov, chars);
+ redo1:
+ 			addr = ops->map(pipe, buf, atomic);
+-			error = pipe_iov_copy_from_user(offset + addr, iov,
+-							chars, atomic);
++			error = pipe_iov_copy_from_user(addr, &offset, iov,
++							&remaining, atomic);
+ 			ops->unmap(pipe, buf, addr);
+ 			ret = error;
+ 			do_wakeup = 1;
+@@ -562,7 +568,7 @@ redo1:
+ 	for (;;) {
+ 		int bufs;
+ 
+-		if (!pipe->readers) {
++		if (!atomic_read(&pipe->readers)) {
+ 			send_sig(SIGPIPE, current, 0);
+ 			if (!ret)
+ 				ret = -EPIPE;
+@@ -575,6 +581,8 @@ redo1:
+ 			struct page *page = pipe->tmp_page;
+ 			char *src;
+ 			int error, atomic = 1;
++			int offset = 0;
++			size_t remaining;
+ 
+ 			if (!page) {
+ 				page = alloc_page(GFP_HIGHUSER);
+@@ -595,14 +603,15 @@ redo1:
+ 				chars = total_len;
+ 
+ 			iov_fault_in_pages_read(iov, chars);
++			remaining = chars;
+ redo2:
+ 			if (atomic)
+ 				src = kmap_atomic(page);
+ 			else
+ 				src = kmap(page);
+ 
+-			error = pipe_iov_copy_from_user(src, iov, chars,
+-							atomic);
++			error = pipe_iov_copy_from_user(src, &offset, iov,
++							&remaining, atomic);
+ 			if (atomic)
+ 				kunmap_atomic(src);
+ 			else
+@@ -653,9 +662,9 @@ redo2:
+ 			kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+ 			do_wakeup = 0;
+ 		}
+-		pipe->waiting_writers++;
++		atomic_inc(&pipe->waiting_writers);
+ 		pipe_wait(pipe);
+-		pipe->waiting_writers--;
++		atomic_dec(&pipe->waiting_writers);
+ 	}
+ out:
+ 	__pipe_unlock(pipe);
+@@ -710,7 +719,7 @@ pipe_poll(struct file *filp, poll_table *wait)
+ 	mask = 0;
+ 	if (filp->f_mode & FMODE_READ) {
+ 		mask = (nrbufs > 0) ? POLLIN | POLLRDNORM : 0;
+-		if (!pipe->writers && filp->f_version != pipe->w_counter)
++		if (!atomic_read(&pipe->writers) && filp->f_version != pipe->w_counter)
+ 			mask |= POLLHUP;
+ 	}
+ 
+@@ -720,7 +729,7 @@ pipe_poll(struct file *filp, poll_table *wait)
+ 		 * Most Unices do not set POLLERR for FIFOs but on Linux they
+ 		 * behave exactly like pipes for poll().
+ 		 */
+-		if (!pipe->readers)
++		if (!atomic_read(&pipe->readers))
+ 			mask |= POLLERR;
+ 	}
+ 
+@@ -732,7 +741,7 @@ static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
+ 	int kill = 0;
+ 
+ 	spin_lock(&inode->i_lock);
+-	if (!--pipe->files) {
++	if (atomic_dec_and_test(&pipe->files)) {
+ 		inode->i_pipe = NULL;
+ 		kill = 1;
+ 	}
+@@ -749,11 +758,11 @@ pipe_release(struct inode *inode, struct file *file)
+ 
+ 	__pipe_lock(pipe);
+ 	if (file->f_mode & FMODE_READ)
+-		pipe->readers--;
++		atomic_dec(&pipe->readers);
+ 	if (file->f_mode & FMODE_WRITE)
+-		pipe->writers--;
++		atomic_dec(&pipe->writers);
+ 
+-	if (pipe->readers || pipe->writers) {
++	if (atomic_read(&pipe->readers) || atomic_read(&pipe->writers)) {
+ 		wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
+ 		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+ 		kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
+@@ -818,7 +827,7 @@ void free_pipe_info(struct pipe_inode_info *pipe)
+ 	kfree(pipe);
+ }
+ 
+-static struct vfsmount *pipe_mnt __read_mostly;
++struct vfsmount *pipe_mnt __read_mostly;
+ 
+ /*
+  * pipefs_dname() is called from d_path().
+@@ -848,8 +857,9 @@ static struct inode * get_pipe_inode(void)
+ 		goto fail_iput;
+ 
+ 	inode->i_pipe = pipe;
+-	pipe->files = 2;
+-	pipe->readers = pipe->writers = 1;
++	atomic_set(&pipe->files, 2);
++	atomic_set(&pipe->readers, 1);
++	atomic_set(&pipe->writers, 1);
+ 	inode->i_fop = &pipefifo_fops;
+ 
+ 	/*
+@@ -1028,17 +1038,17 @@ static int fifo_open(struct inode *inode, struct file *filp)
+ 	spin_lock(&inode->i_lock);
+ 	if (inode->i_pipe) {
+ 		pipe = inode->i_pipe;
+-		pipe->files++;
++		atomic_inc(&pipe->files);
+ 		spin_unlock(&inode->i_lock);
+ 	} else {
+ 		spin_unlock(&inode->i_lock);
+ 		pipe = alloc_pipe_info();
+ 		if (!pipe)
+ 			return -ENOMEM;
+-		pipe->files = 1;
++		atomic_set(&pipe->files, 1);
+ 		spin_lock(&inode->i_lock);
+ 		if (unlikely(inode->i_pipe)) {
+-			inode->i_pipe->files++;
++			atomic_inc(&inode->i_pipe->files);
+ 			spin_unlock(&inode->i_lock);
+ 			free_pipe_info(pipe);
+ 			pipe = inode->i_pipe;
+@@ -1063,10 +1073,10 @@ static int fifo_open(struct inode *inode, struct file *filp)
+ 	 *  opened, even when there is no process writing the FIFO.
+ 	 */
+ 		pipe->r_counter++;
+-		if (pipe->readers++ == 0)
++		if (atomic_inc_return(&pipe->readers) == 1)
+ 			wake_up_partner(pipe);
+ 
+-		if (!is_pipe && !pipe->writers) {
++		if (!is_pipe && !atomic_read(&pipe->writers)) {
+ 			if ((filp->f_flags & O_NONBLOCK)) {
+ 				/* suppress POLLHUP until we have
+ 				 * seen a writer */
+@@ -1085,14 +1095,14 @@ static int fifo_open(struct inode *inode, struct file *filp)
+ 	 *  errno=ENXIO when there is no process reading the FIFO.
+ 	 */
+ 		ret = -ENXIO;
+-		if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !pipe->readers)
++		if (!is_pipe && (filp->f_flags & O_NONBLOCK) && !atomic_read(&pipe->readers))
+ 			goto err;
+ 
+ 		pipe->w_counter++;
+-		if (!pipe->writers++)
++		if (atomic_inc_return(&pipe->writers) == 1)
+ 			wake_up_partner(pipe);
+ 
+-		if (!is_pipe && !pipe->readers) {
++		if (!is_pipe && !atomic_read(&pipe->readers)) {
+ 			if (wait_for_partner(pipe, &pipe->r_counter))
+ 				goto err_wr;
+ 		}
+@@ -1106,11 +1116,11 @@ static int fifo_open(struct inode *inode, struct file *filp)
+ 	 *  the process can at least talk to itself.
+ 	 */
+ 
+-		pipe->readers++;
+-		pipe->writers++;
++		atomic_inc(&pipe->readers);
++		atomic_inc(&pipe->writers);
+ 		pipe->r_counter++;
+ 		pipe->w_counter++;
+-		if (pipe->readers == 1 || pipe->writers == 1)
++		if (atomic_read(&pipe->readers) == 1 || atomic_read(&pipe->writers) == 1)
+ 			wake_up_partner(pipe);
+ 		break;
+ 
+@@ -1124,13 +1134,13 @@ static int fifo_open(struct inode *inode, struct file *filp)
+ 	return 0;
+ 
+ err_rd:
+-	if (!--pipe->readers)
++	if (atomic_dec_and_test(&pipe->readers))
+ 		wake_up_interruptible(&pipe->wait);
+ 	ret = -ERESTARTSYS;
+ 	goto err;
+ 
+ err_wr:
+-	if (!--pipe->writers)
++	if (atomic_dec_and_test(&pipe->writers))
+ 		wake_up_interruptible(&pipe->wait);
+ 	ret = -ERESTARTSYS;
+ 	goto err;
+@@ -1208,7 +1218,7 @@ static long pipe_set_size(struct pipe_inode_info *pipe, unsigned long nr_pages)
+  * Currently we rely on the pipe array holding a power-of-2 number
+  * of pages.
+  */
+-static inline unsigned int round_pipe_size(unsigned int size)
++static inline unsigned long round_pipe_size(unsigned long size)
+ {
+ 	unsigned long nr_pages;
+ 
+@@ -1256,13 +1266,16 @@ long pipe_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
+ 
+ 	switch (cmd) {
+ 	case F_SETPIPE_SZ: {
+-		unsigned int size, nr_pages;
++		unsigned long size, nr_pages;
++
++		ret = -EINVAL;
++		if (arg < pipe_min_size)
++			goto out;
+ 
+ 		size = round_pipe_size(arg);
+ 		nr_pages = size >> PAGE_SHIFT;
+ 
+-		ret = -EINVAL;
+-		if (!nr_pages)
++		if (size < pipe_min_size)
+ 			goto out;
+ 
+ 		if (!capable(CAP_SYS_RESOURCE) && size > pipe_max_size) {
+diff --git a/fs/posix_acl.c b/fs/posix_acl.c
+index 0855f77..6787d50 100644
+--- a/fs/posix_acl.c
++++ b/fs/posix_acl.c
+@@ -20,6 +20,7 @@
+ #include <linux/xattr.h>
+ #include <linux/export.h>
+ #include <linux/user_namespace.h>
++#include <linux/grsecurity.h>
+ 
+ struct posix_acl **acl_by_type(struct inode *inode, int type)
+ {
+@@ -277,7 +278,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
+ 		}
+ 	}
+         if (mode_p)
+-                *mode_p = (*mode_p & ~S_IRWXUGO) | mode;
++                *mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
+         return not_equiv;
+ }
+ EXPORT_SYMBOL(posix_acl_equiv_mode);
+@@ -427,7 +428,7 @@ static int posix_acl_create_masq(struct posix_acl *acl, umode_t *mode_p)
+ 		mode &= (group_obj->e_perm << 3) | ~S_IRWXG;
+ 	}
+ 
+-	*mode_p = (*mode_p & ~S_IRWXUGO) | mode;
++	*mode_p = ((*mode_p & ~S_IRWXUGO) | mode) & ~gr_acl_umask();
+         return not_equiv;
+ }
+ 
+@@ -485,6 +486,8 @@ __posix_acl_create(struct posix_acl **acl, gfp_t gfp, umode_t *mode_p)
+ 	struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ 	int err = -ENOMEM;
+ 	if (clone) {
++		*mode_p &= ~gr_acl_umask();
++
+ 		err = posix_acl_create_masq(clone, mode_p);
+ 		if (err < 0) {
+ 			posix_acl_release(clone);
+@@ -659,11 +662,12 @@ struct posix_acl *
+ posix_acl_from_xattr(struct user_namespace *user_ns,
+ 		     const void *value, size_t size)
+ {
+-	posix_acl_xattr_header *header = (posix_acl_xattr_header *)value;
+-	posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end;
++	const posix_acl_xattr_header *header = (const posix_acl_xattr_header *)value;
++	const posix_acl_xattr_entry *entry = (const posix_acl_xattr_entry *)(header+1), *end;
+ 	int count;
+ 	struct posix_acl *acl;
+ 	struct posix_acl_entry *acl_e;
++	umode_t umask = gr_acl_umask();
+ 
+ 	if (!value)
+ 		return NULL;
+@@ -689,12 +693,18 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
+ 
+ 		switch(acl_e->e_tag) {
+ 			case ACL_USER_OBJ:
++				acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
++				break;
+ 			case ACL_GROUP_OBJ:
+ 			case ACL_MASK:
++				acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
++				break;
+ 			case ACL_OTHER:
++				acl_e->e_perm &= ~(umask & S_IRWXO);
+ 				break;
+ 
+ 			case ACL_USER:
++				acl_e->e_perm &= ~((umask & S_IRWXU) >> 6);
+ 				acl_e->e_uid =
+ 					make_kuid(user_ns,
+ 						  le32_to_cpu(entry->e_id));
+@@ -702,6 +712,7 @@ posix_acl_from_xattr(struct user_namespace *user_ns,
+ 					goto fail;
+ 				break;
+ 			case ACL_GROUP:
++				acl_e->e_perm &= ~((umask & S_IRWXG) >> 3);
+ 				acl_e->e_gid =
+ 					make_kgid(user_ns,
+ 						  le32_to_cpu(entry->e_id));
+diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
+index 2183fcf..3c32a98 100644
+--- a/fs/proc/Kconfig
++++ b/fs/proc/Kconfig
+@@ -30,7 +30,7 @@ config PROC_FS
+ 
+ config PROC_KCORE
+ 	bool "/proc/kcore support" if !ARM
+-	depends on PROC_FS && MMU
++	depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD
+ 	help
+ 	  Provides a virtual ELF core file of the live kernel.  This can
+ 	  be read with gdb and other ELF tools.  No modifications can be
+@@ -38,8 +38,8 @@ config PROC_KCORE
+ 
+ config PROC_VMCORE
+ 	bool "/proc/vmcore support"
+-	depends on PROC_FS && CRASH_DUMP
+-	default y
++	depends on PROC_FS && CRASH_DUMP && !GRKERNSEC
++	default n
+         help
+         Exports the dump image of crashed kernel in ELF format.
+ 
+@@ -63,8 +63,8 @@ config PROC_SYSCTL
+ 	  limited in memory.
+ 
+ config PROC_PAGE_MONITOR
+- 	default y
+-	depends on PROC_FS && MMU
++ 	default n
++	depends on PROC_FS && MMU && !GRKERNSEC
+ 	bool "Enable /proc page monitoring" if EXPERT
+  	help
+ 	  Various /proc files exist to monitor process memory utilization:
+diff --git a/fs/proc/array.c b/fs/proc/array.c
+index baf3464..5b394ec 100644
+--- a/fs/proc/array.c
++++ b/fs/proc/array.c
+@@ -60,6 +60,7 @@
+ #include <linux/tty.h>
+ #include <linux/string.h>
+ #include <linux/mman.h>
++#include <linux/grsecurity.h>
+ #include <linux/proc_fs.h>
+ #include <linux/ioport.h>
+ #include <linux/uaccess.h>
+@@ -347,6 +348,21 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task)
+ 	seq_putc(m, '\n');
+ }
+ 
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++static inline void task_pax(struct seq_file *m, struct task_struct *p)
++{
++	if (p->mm)
++		seq_printf(m, "PaX:\t%c%c%c%c%c\n",
++			   p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p',
++			   p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e',
++			   p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm',
++			   p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r',
++			   p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's');
++	else
++		seq_printf(m, "PaX:\t-----\n");
++}
++#endif
++
+ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+ 			struct pid *pid, struct task_struct *task)
+ {
+@@ -365,9 +381,24 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+ 	task_cpus_allowed(m, task);
+ 	cpuset_task_status_allowed(m, task);
+ 	task_context_switch_counts(m, task);
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++	task_pax(m, task);
++#endif
++
++#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC)
++	task_grsec_rbac(m, task);
++#endif
++
+ 	return 0;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
++			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
++			      _mm->pax_flags & MF_PAX_SEGMEXEC))
++#endif
++
+ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+ 			struct pid *pid, struct task_struct *task, int whole)
+ {
+@@ -389,6 +420,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+ 	char tcomm[sizeof(task->comm)];
+ 	unsigned long flags;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (current->exec_id != m->exec_id) {
++		gr_log_badprocpid("stat");
++		return 0;
++	}
++#endif
++
+ 	state = *get_task_state(task);
+ 	vsize = eip = esp = 0;
+ 	permitted = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
+@@ -459,6 +497,19 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+ 		gtime = task_gtime(task);
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (PAX_RAND_FLAGS(mm)) {
++		eip = 0;
++		esp = 0;
++		wchan = 0;
++	}
++#endif
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	wchan = 0;
++	eip =0;
++	esp =0;
++#endif
++
+ 	/* scale priority and nice values from timeslices to -20..20 */
+ 	/* to make it look like a "normal" Unix priority/nice value  */
+ 	priority = task_prio(task);
+@@ -495,9 +546,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+ 	seq_put_decimal_ull(m, ' ', vsize);
+ 	seq_put_decimal_ull(m, ' ', mm ? get_mm_rss(mm) : 0);
+ 	seq_put_decimal_ull(m, ' ', rsslim);
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->start_code : 1) : 0));
++	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 1 : (mm ? (permitted ? mm->end_code : 1) : 0));
++	seq_put_decimal_ull(m, ' ', PAX_RAND_FLAGS(mm) ? 0 : ((permitted && mm) ? mm->start_stack : 0));
++#else
+ 	seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->start_code : 1) : 0);
+ 	seq_put_decimal_ull(m, ' ', mm ? (permitted ? mm->end_code : 1) : 0);
+ 	seq_put_decimal_ull(m, ' ', (permitted && mm) ? mm->start_stack : 0);
++#endif
+ 	seq_put_decimal_ull(m, ' ', esp);
+ 	seq_put_decimal_ull(m, ' ', eip);
+ 	/* The signal information here is obsolete.
+@@ -519,7 +576,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
+ 	seq_put_decimal_ull(m, ' ', cputime_to_clock_t(gtime));
+ 	seq_put_decimal_ll(m, ' ', cputime_to_clock_t(cgtime));
+ 
+-	if (mm && permitted) {
++	if (mm && permitted
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++		&& !PAX_RAND_FLAGS(mm)
++#endif
++	   ) {
+ 		seq_put_decimal_ull(m, ' ', mm->start_data);
+ 		seq_put_decimal_ull(m, ' ', mm->end_data);
+ 		seq_put_decimal_ull(m, ' ', mm->start_brk);
+@@ -557,8 +618,15 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+ 			struct pid *pid, struct task_struct *task)
+ {
+ 	unsigned long size = 0, resident = 0, shared = 0, text = 0, data = 0;
+-	struct mm_struct *mm = get_task_mm(task);
++	struct mm_struct *mm;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (current->exec_id != m->exec_id) {
++		gr_log_badprocpid("statm");
++		return 0;
++	}
++#endif
++	mm = get_task_mm(task);
+ 	if (mm) {
+ 		size = task_statm(mm, &shared, &text, &data, &resident);
+ 		mmput(mm);
+@@ -581,6 +649,21 @@ int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+ 	return 0;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
++int proc_pid_ipaddr(struct task_struct *task, char *buffer)
++{
++	unsigned long flags;
++	u32 curr_ip = 0;
++
++	if (lock_task_sighand(task, &flags)) {
++		curr_ip = task->signal->curr_ip;
++		unlock_task_sighand(task, &flags);
++	}
++
++	return sprintf(buffer, "%pI4\n", &curr_ip);
++}
++#endif
++
+ #ifdef CONFIG_CHECKPOINT_RESTORE
+ static struct pid *
+ get_children_pid(struct inode *inode, struct pid *pid_prev, loff_t pos)
+diff --git a/fs/proc/base.c b/fs/proc/base.c
+index 489ba8c..72265d6 100644
+--- a/fs/proc/base.c
++++ b/fs/proc/base.c
+@@ -113,6 +113,14 @@ struct pid_entry {
+ 	union proc_op op;
+ };
+ 
++struct getdents_callback {
++	struct linux_dirent __user * current_dir;
++	struct linux_dirent __user * previous;
++	struct file * file;
++	int count;
++	int error;
++};
++
+ #define NOD(NAME, MODE, IOP, FOP, OP) {			\
+ 	.name = (NAME),					\
+ 	.len  = sizeof(NAME) - 1,			\
+@@ -210,6 +218,9 @@ static int proc_pid_cmdline(struct task_struct *task, char * buffer)
+ 	if (!mm->arg_end)
+ 		goto out_mm;	/* Shh! No looking before we're done */
+ 
++	if (gr_acl_handle_procpidmem(task))
++		goto out_mm;
++
+  	len = mm->arg_end - mm->arg_start;
+  
+ 	if (len > PAGE_SIZE)
+@@ -237,12 +248,28 @@ out:
+ 	return res;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
++			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
++			      _mm->pax_flags & MF_PAX_SEGMEXEC))
++#endif
++
+ static int proc_pid_auxv(struct task_struct *task, char *buffer)
+ {
+ 	struct mm_struct *mm = mm_access(task, PTRACE_MODE_READ);
+ 	int res = PTR_ERR(mm);
+ 	if (mm && !IS_ERR(mm)) {
+ 		unsigned int nwords = 0;
++
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++		/* allow if we're currently ptracing this task */
++		if (PAX_RAND_FLAGS(mm) &&
++		    (!(task->ptrace & PT_PTRACED) || (task->parent != current))) {
++			mmput(mm);
++			return 0;
++		}
++#endif
++
+ 		do {
+ 			nwords += 2;
+ 		} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */
+@@ -256,7 +283,7 @@ static int proc_pid_auxv(struct task_struct *task, char *buffer)
+ }
+ 
+ 
+-#ifdef CONFIG_KALLSYMS
++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ /*
+  * Provides a wchan file via kallsyms in a proper one-value-per-file format.
+  * Returns the resolved symbol.  If that fails, simply return the address.
+@@ -295,7 +322,7 @@ static void unlock_trace(struct task_struct *task)
+ 	mutex_unlock(&task->signal->cred_guard_mutex);
+ }
+ 
+-#ifdef CONFIG_STACKTRACE
++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ 
+ #define MAX_STACK_TRACE_DEPTH	64
+ 
+@@ -518,7 +545,7 @@ static int proc_pid_limits(struct task_struct *task, char *buffer)
+ 	return count;
+ }
+ 
+-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+ static int proc_pid_syscall(struct task_struct *task, char *buffer)
+ {
+ 	long nr;
+@@ -547,7 +574,7 @@ static int proc_pid_syscall(struct task_struct *task, char *buffer)
+ /************************************************************************/
+ 
+ /* permission checks */
+-static int proc_fd_access_allowed(struct inode *inode)
++static int proc_fd_access_allowed(struct inode *inode, unsigned int log)
+ {
+ 	struct task_struct *task;
+ 	int allowed = 0;
+@@ -557,7 +584,10 @@ static int proc_fd_access_allowed(struct inode *inode)
+ 	 */
+ 	task = get_proc_task(inode);
+ 	if (task) {
+-		allowed = ptrace_may_access(task, PTRACE_MODE_READ);
++		if (log)
++			allowed = ptrace_may_access(task, PTRACE_MODE_READ);
++		else
++			allowed = ptrace_may_access(task, PTRACE_MODE_READ | PTRACE_MODE_NOAUDIT);
+ 		put_task_struct(task);
+ 	}
+ 	return allowed;
+@@ -588,10 +618,35 @@ static bool has_pid_permissions(struct pid_namespace *pid,
+ 				 struct task_struct *task,
+ 				 int hide_pid_min)
+ {
++	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++		return false;
++
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	rcu_read_lock();
++	{
++		const struct cred *tmpcred = current_cred();
++		const struct cred *cred = __task_cred(task);
++
++		if (uid_eq(tmpcred->uid, GLOBAL_ROOT_UID) || uid_eq(tmpcred->uid, cred->uid)
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++			|| in_group_p(grsec_proc_gid)
++#endif
++		) {
++			rcu_read_unlock();
++			return true;
++		}
++	}
++	rcu_read_unlock();
++
++	if (!pid->hide_pid)
++		return false;
++#endif
++
+ 	if (pid->hide_pid < hide_pid_min)
+ 		return true;
+ 	if (in_group_p(pid->pid_gid))
+ 		return true;
++
+ 	return ptrace_may_access(task, PTRACE_MODE_READ);
+ }
+ 
+@@ -609,7 +664,11 @@ static int proc_pid_permission(struct inode *inode, int mask)
+ 	put_task_struct(task);
+ 
+ 	if (!has_perms) {
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++		{
++#else
+ 		if (pid->hide_pid == 2) {
++#endif
+ 			/*
+ 			 * Let's make getdents(), stat(), and open()
+ 			 * consistent with each other.  If a process
+@@ -707,6 +766,11 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
+ 	if (!task)
+ 		return -ESRCH;
+ 
++	if (gr_acl_handle_procpidmem(task)) {
++		put_task_struct(task);
++		return -EPERM;
++	}
++
+ 	mm = mm_access(task, mode);
+ 	put_task_struct(task);
+ 
+@@ -722,6 +786,10 @@ static int __mem_open(struct inode *inode, struct file *file, unsigned int mode)
+ 
+ 	file->private_data = mm;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	file->f_version = current->exec_id;
++#endif
++
+ 	return 0;
+ }
+ 
+@@ -743,6 +811,17 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
+ 	ssize_t copied;
+ 	char *page;
+ 
++#ifdef CONFIG_GRKERNSEC
++	if (write)
++		return -EPERM;
++#endif
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (file->f_version != current->exec_id) {
++		gr_log_badprocpid("mem");
++		return 0;
++	}
++#endif
++
+ 	if (!mm)
+ 		return 0;
+ 
+@@ -755,7 +834,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
+ 		goto free;
+ 
+ 	while (count > 0) {
+-		int this_len = min_t(int, count, PAGE_SIZE);
++		ssize_t this_len = min_t(ssize_t, count, PAGE_SIZE);
+ 
+ 		if (write && copy_from_user(page, buf, this_len)) {
+ 			copied = -EFAULT;
+@@ -847,6 +926,13 @@ static ssize_t environ_read(struct file *file, char __user *buf,
+ 	if (!mm)
+ 		return 0;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (file->f_version != current->exec_id) {
++		gr_log_badprocpid("environ");
++		return 0;
++	}
++#endif
++
+ 	page = (char *)__get_free_page(GFP_TEMPORARY);
+ 	if (!page)
+ 		return -ENOMEM;
+@@ -856,7 +942,7 @@ static ssize_t environ_read(struct file *file, char __user *buf,
+ 		goto free;
+ 	while (count > 0) {
+ 		size_t this_len, max_len;
+-		int retval;
++		ssize_t retval;
+ 
+ 		if (src >= (mm->env_end - mm->env_start))
+ 			break;
+@@ -1467,7 +1553,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
+ 	int error = -EACCES;
+ 
+ 	/* Are we allowed to snoop on the tasks file descriptors? */
+-	if (!proc_fd_access_allowed(inode))
++	if (!proc_fd_access_allowed(inode, 0))
+ 		goto out;
+ 
+ 	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
+@@ -1511,8 +1597,18 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
+ 	struct path path;
+ 
+ 	/* Are we allowed to snoop on the tasks file descriptors? */
+-	if (!proc_fd_access_allowed(inode))
+-		goto out;
++	/* logging this is needed for learning on chromium to work properly,
++	   but we don't want to flood the logs from 'ps' which does a readlink
++	   on /proc/fd/2 of tasks in the listing, nor do we want 'ps' to learn
++	   CAP_SYS_PTRACE as it's not necessary for its basic functionality
++	 */
++	if (dentry->d_name.name[0] == '2' && dentry->d_name.name[1] == '\0') {
++		if (!proc_fd_access_allowed(inode,0))
++			goto out;
++	} else {
++		if (!proc_fd_access_allowed(inode,1))
++			goto out;
++	}
+ 
+ 	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
+ 	if (error)
+@@ -1562,7 +1658,11 @@ struct inode *proc_pid_make_inode(struct super_block * sb, struct task_struct *t
+ 		rcu_read_lock();
+ 		cred = __task_cred(task);
+ 		inode->i_uid = cred->euid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++		inode->i_gid = grsec_proc_gid;
++#else
+ 		inode->i_gid = cred->egid;
++#endif
+ 		rcu_read_unlock();
+ 	}
+ 	security_task_to_inode(task, inode);
+@@ -1598,10 +1698,19 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+ 			return -ENOENT;
+ 		}
+ 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
++#endif
+ 		    task_dumpable(task)) {
+ 			cred = __task_cred(task);
+ 			stat->uid = cred->euid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++			stat->gid = grsec_proc_gid;
++#else
+ 			stat->gid = cred->egid;
++#endif
+ 		}
+ 	}
+ 	rcu_read_unlock();
+@@ -1639,11 +1748,20 @@ int pid_revalidate(struct dentry *dentry, unsigned int flags)
+ 
+ 	if (task) {
+ 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) ||
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++		    (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) ||
++#endif
+ 		    task_dumpable(task)) {
+ 			rcu_read_lock();
+ 			cred = __task_cred(task);
+ 			inode->i_uid = cred->euid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++			inode->i_gid = grsec_proc_gid;
++#else
+ 			inode->i_gid = cred->egid;
++#endif
+ 			rcu_read_unlock();
+ 		} else {
+ 			inode->i_uid = GLOBAL_ROOT_UID;
+@@ -2178,6 +2296,9 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
+ 	if (!task)
+ 		goto out_no_task;
+ 
++	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++		goto out;
++
+ 	/*
+ 	 * Yes, it does not scale. And it should not. Don't add
+ 	 * new entries into /proc/<tgid>/ without very good reasons.
+@@ -2208,6 +2329,9 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx,
+ 	if (!task)
+ 		return -ENOENT;
+ 
++	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++		goto out;
++
+ 	if (!dir_emit_dots(file, ctx))
+ 		goto out;
+ 
+@@ -2648,7 +2772,7 @@ static const struct pid_entry tgid_base_stuff[] = {
+ 	REG("autogroup",  S_IRUGO|S_IWUSR, proc_pid_sched_autogroup_operations),
+ #endif
+ 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
+-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+ 	INF("syscall",    S_IRUGO, proc_pid_syscall),
+ #endif
+ 	INF("cmdline",    S_IRUGO, proc_pid_cmdline),
+@@ -2673,10 +2797,10 @@ static const struct pid_entry tgid_base_stuff[] = {
+ #ifdef CONFIG_SECURITY
+ 	DIR("attr",       S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
+ #endif
+-#ifdef CONFIG_KALLSYMS
++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ 	INF("wchan",      S_IRUGO, proc_pid_wchan),
+ #endif
+-#ifdef CONFIG_STACKTRACE
++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ 	ONE("stack",      S_IRUGO, proc_pid_stack),
+ #endif
+ #ifdef CONFIG_SCHEDSTATS
+@@ -2710,6 +2834,9 @@ static const struct pid_entry tgid_base_stuff[] = {
+ #ifdef CONFIG_HARDWALL
+ 	INF("hardwall",   S_IRUGO, proc_pid_hardwall),
+ #endif
++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
++	INF("ipaddr",     S_IRUSR, proc_pid_ipaddr),
++#endif
+ #ifdef CONFIG_USER_NS
+ 	REG("uid_map",    S_IRUGO|S_IWUSR, proc_uid_map_operations),
+ 	REG("gid_map",    S_IRUGO|S_IWUSR, proc_gid_map_operations),
+@@ -2841,7 +2968,14 @@ static int proc_pid_instantiate(struct inode *dir,
+ 	if (!inode)
+ 		goto out;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR;
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	inode->i_gid = grsec_proc_gid;
++	inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP;
++#else
+ 	inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
++#endif
+ 	inode->i_op = &proc_tgid_base_inode_operations;
+ 	inode->i_fop = &proc_tgid_base_operations;
+ 	inode->i_flags|=S_IMMUTABLE;
+@@ -2879,7 +3013,11 @@ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, unsign
+ 	if (!task)
+ 		goto out;
+ 
++	if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))
++		goto out_put_task;
++
+ 	result = proc_pid_instantiate(dir, dentry, task, NULL);
++out_put_task:
+ 	put_task_struct(task);
+ out:
+ 	return ERR_PTR(result);
+@@ -2985,7 +3123,7 @@ static const struct pid_entry tid_base_stuff[] = {
+ 	REG("sched",     S_IRUGO|S_IWUSR, proc_pid_sched_operations),
+ #endif
+ 	REG("comm",      S_IRUGO|S_IWUSR, proc_pid_set_comm_operations),
+-#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
++#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+ 	INF("syscall",   S_IRUGO, proc_pid_syscall),
+ #endif
+ 	INF("cmdline",   S_IRUGO, proc_pid_cmdline),
+@@ -3012,10 +3150,10 @@ static const struct pid_entry tid_base_stuff[] = {
+ #ifdef CONFIG_SECURITY
+ 	DIR("attr",      S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
+ #endif
+-#ifdef CONFIG_KALLSYMS
++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ 	INF("wchan",     S_IRUGO, proc_pid_wchan),
+ #endif
+-#ifdef CONFIG_STACKTRACE
++#if defined(CONFIG_STACKTRACE) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ 	ONE("stack",      S_IRUGO, proc_pid_stack),
+ #endif
+ #ifdef CONFIG_SCHEDSTATS
+diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
+index cbd82df..c0407d2 100644
+--- a/fs/proc/cmdline.c
++++ b/fs/proc/cmdline.c
+@@ -23,7 +23,11 @@ static const struct file_operations cmdline_proc_fops = {
+ 
+ static int __init proc_cmdline_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++	proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops);
++#else
+ 	proc_create("cmdline", 0, NULL, &cmdline_proc_fops);
++#endif
+ 	return 0;
+ }
+ fs_initcall(proc_cmdline_init);
+diff --git a/fs/proc/devices.c b/fs/proc/devices.c
+index 50493ed..248166b 100644
+--- a/fs/proc/devices.c
++++ b/fs/proc/devices.c
+@@ -64,7 +64,11 @@ static const struct file_operations proc_devinfo_operations = {
+ 
+ static int __init proc_devices_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++	proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations);
++#else
+ 	proc_create("devices", 0, NULL, &proc_devinfo_operations);
++#endif
+ 	return 0;
+ }
+ fs_initcall(proc_devices_init);
+diff --git a/fs/proc/fd.c b/fs/proc/fd.c
+index 985ea88..d118a0a 100644
+--- a/fs/proc/fd.c
++++ b/fs/proc/fd.c
+@@ -25,7 +25,8 @@ static int seq_show(struct seq_file *m, void *v)
+ 	if (!task)
+ 		return -ENOENT;
+ 
+-	files = get_files_struct(task);
++	if (!gr_acl_handle_procpidmem(task))
++		files = get_files_struct(task);
+ 	put_task_struct(task);
+ 
+ 	if (files) {
+@@ -283,11 +284,21 @@ static struct dentry *proc_lookupfd(struct inode *dir, struct dentry *dentry,
+  */
+ int proc_fd_permission(struct inode *inode, int mask)
+ {
++	struct task_struct *task;
+ 	int rv = generic_permission(inode, mask);
+-	if (rv == 0)
+-		return 0;
++
+ 	if (task_tgid(current) == proc_pid(inode))
+ 		rv = 0;
++
++	task = get_proc_task(inode);
++	if (task == NULL)
++		return rv;
++
++	if (gr_acl_handle_procpidmem(task))
++		rv = -EACCES;
++
++	put_task_struct(task);
++
+ 	return rv;
+ }
+ 
+diff --git a/fs/proc/generic.c b/fs/proc/generic.c
+index 2e2d9d5..0ac3d4e 100644
+--- a/fs/proc/generic.c
++++ b/fs/proc/generic.c
+@@ -22,6 +22,7 @@
+ #include <linux/bitops.h>
+ #include <linux/spinlock.h>
+ #include <linux/completion.h>
++#include <linux/grsecurity.h>
+ #include <asm/uaccess.h>
+ 
+ #include "internal.h"
+@@ -195,6 +196,15 @@ struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry,
+ 	return proc_lookup_de(PDE(dir), dir, dentry);
+ }
+ 
++struct dentry *proc_lookup_restrict(struct inode *dir, struct dentry *dentry,
++		unsigned int flags)
++{
++	if (gr_proc_is_restricted())
++		return ERR_PTR(-EACCES);
++
++	return proc_lookup_de(PDE(dir), dir, dentry);
++}
++
+ /*
+  * This returns non-zero if at EOF, so that the /proc
+  * root directory can use this and check if it should
+@@ -252,6 +262,16 @@ int proc_readdir(struct file *file, struct dir_context *ctx)
+ 	return proc_readdir_de(PDE(inode), file, ctx);
+ }
+ 
++int proc_readdir_restrict(struct file *file, struct dir_context *ctx)
++{
++	struct inode *inode = file_inode(file);
++
++	if (gr_proc_is_restricted())
++		return -EACCES;
++
++	return proc_readdir_de(PDE(inode), file, ctx);
++}
++
+ /*
+  * These are the generic /proc directory operations. They
+  * use the in-memory "struct proc_dir_entry" tree to parse
+@@ -263,6 +283,12 @@ static const struct file_operations proc_dir_operations = {
+ 	.iterate		= proc_readdir,
+ };
+ 
++static const struct file_operations proc_dir_restricted_operations = {
++	.llseek			= generic_file_llseek,
++	.read			= generic_read_dir,
++	.iterate		= proc_readdir_restrict,
++};
++
+ /*
+  * proc directories can do almost nothing..
+  */
+@@ -272,6 +298,12 @@ static const struct inode_operations proc_dir_inode_operations = {
+ 	.setattr	= proc_notify_change,
+ };
+ 
++static const struct inode_operations proc_dir_restricted_inode_operations = {
++	.lookup		= proc_lookup_restrict,
++	.getattr	= proc_getattr,
++	.setattr	= proc_notify_change,
++};
++
+ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp)
+ {
+ 	struct proc_dir_entry *tmp;
+@@ -282,8 +314,13 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
+ 		return ret;
+ 
+ 	if (S_ISDIR(dp->mode)) {
+-		dp->proc_fops = &proc_dir_operations;
+-		dp->proc_iops = &proc_dir_inode_operations;
++		if (dp->restricted) {
++			dp->proc_fops = &proc_dir_restricted_operations;
++			dp->proc_iops = &proc_dir_restricted_inode_operations;
++		} else {
++			dp->proc_fops = &proc_dir_operations;
++			dp->proc_iops = &proc_dir_inode_operations;
++		}
+ 		dir->nlink++;
+ 	} else if (S_ISLNK(dp->mode)) {
+ 		dp->proc_iops = &proc_link_inode_operations;
+@@ -395,6 +432,27 @@ struct proc_dir_entry *proc_mkdir_data(const char *name, umode_t mode,
+ }
+ EXPORT_SYMBOL_GPL(proc_mkdir_data);
+ 
++struct proc_dir_entry *proc_mkdir_data_restrict(const char *name, umode_t mode,
++		struct proc_dir_entry *parent, void *data)
++{
++	struct proc_dir_entry *ent;
++
++	if (mode == 0)
++		mode = S_IRUGO | S_IXUGO;
++
++	ent = __proc_create(&parent, name, S_IFDIR | mode, 2);
++	if (ent) {
++		ent->data = data;
++		ent->restricted = 1;
++		if (proc_register(parent, ent) < 0) {
++			kfree(ent);
++			ent = NULL;
++		}
++	}
++	return ent;
++}
++EXPORT_SYMBOL_GPL(proc_mkdir_data_restrict);
++
+ struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
+ 				       struct proc_dir_entry *parent)
+ {
+@@ -409,6 +467,13 @@ struct proc_dir_entry *proc_mkdir(const char *name,
+ }
+ EXPORT_SYMBOL(proc_mkdir);
+ 
++struct proc_dir_entry *proc_mkdir_restrict(const char *name,
++		struct proc_dir_entry *parent)
++{
++	return proc_mkdir_data_restrict(name, 0, parent, NULL);
++}
++EXPORT_SYMBOL(proc_mkdir_restrict);
++
+ struct proc_dir_entry *proc_create_data(const char *name, umode_t mode,
+ 					struct proc_dir_entry *parent,
+ 					const struct file_operations *proc_fops,
+diff --git a/fs/proc/inode.c b/fs/proc/inode.c
+index 2f2815f..07fa320 100644
+--- a/fs/proc/inode.c
++++ b/fs/proc/inode.c
+@@ -24,11 +24,17 @@
+ #include <linux/mount.h>
+ #include <linux/magic.h>
+ #include <linux/namei.h>
++#include <linux/grsecurity.h>
+ 
+ #include <asm/uaccess.h>
+ 
+ #include "internal.h"
+ 
++#ifdef CONFIG_PROC_SYSCTL
++extern const struct inode_operations proc_sys_inode_operations;
++extern const struct inode_operations proc_sys_dir_operations;
++#endif
++
+ static void proc_evict_inode(struct inode *inode)
+ {
+ 	struct proc_dir_entry *de;
+@@ -56,6 +62,13 @@ static void proc_evict_inode(struct inode *inode)
+ 	ns = PROC_I(inode)->ns.ns;
+ 	if (ns_ops && ns)
+ 		ns_ops->put(ns);
++
++#ifdef CONFIG_PROC_SYSCTL
++	if (inode->i_op == &proc_sys_inode_operations ||
++	    inode->i_op == &proc_sys_dir_operations)
++		gr_handle_delete(inode->i_ino, inode->i_sb->s_dev);
++#endif
++
+ }
+ 
+ static struct kmem_cache * proc_inode_cachep;
+@@ -434,7 +447,11 @@ struct inode *proc_get_inode(struct super_block *sb, struct proc_dir_entry *de)
+ 		if (de->mode) {
+ 			inode->i_mode = de->mode;
+ 			inode->i_uid = de->uid;
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++			inode->i_gid = grsec_proc_gid;
++#else
+ 			inode->i_gid = de->gid;
++#endif
+ 		}
+ 		if (de->size)
+ 			inode->i_size = de->size;
+diff --git a/fs/proc/internal.h b/fs/proc/internal.h
+index 8b8ca1d..d15474f 100644
+--- a/fs/proc/internal.h
++++ b/fs/proc/internal.h
+@@ -46,9 +46,10 @@ struct proc_dir_entry {
+ 	struct completion *pde_unload_completion;
+ 	struct list_head pde_openers;	/* who did ->open, but not ->release */
+ 	spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
++	u8 restricted; /* a directory in /proc/net that should be restricted via GRKERNSEC_PROC */
+ 	u8 namelen;
+ 	char name[];
+-};
++} __randomize_layout;
+ 
+ union proc_op {
+ 	int (*proc_get_link)(struct dentry *, struct path *);
+@@ -67,7 +68,7 @@ struct proc_inode {
+ 	struct ctl_table *sysctl_entry;
+ 	struct proc_ns ns;
+ 	struct inode vfs_inode;
+-};
++} __randomize_layout;
+ 
+ /*
+  * General functions
+@@ -155,6 +156,9 @@ extern int proc_pid_status(struct seq_file *, struct pid_namespace *,
+ 			   struct pid *, struct task_struct *);
+ extern int proc_pid_statm(struct seq_file *, struct pid_namespace *,
+ 			  struct pid *, struct task_struct *);
++#ifdef CONFIG_GRKERNSEC_PROC_IPADDR
++extern int proc_pid_ipaddr(struct task_struct *task, char *buffer);
++#endif
+ 
+ /*
+  * base.c
+@@ -181,9 +185,11 @@ extern bool proc_fill_cache(struct file *, struct dir_context *, const char *, i
+ extern spinlock_t proc_subdir_lock;
+ 
+ extern struct dentry *proc_lookup(struct inode *, struct dentry *, unsigned int);
++extern struct dentry *proc_lookup_restrict(struct inode *, struct dentry *, unsigned int);
+ extern struct dentry *proc_lookup_de(struct proc_dir_entry *, struct inode *,
+ 				     struct dentry *);
+ extern int proc_readdir(struct file *, struct dir_context *);
++extern int proc_readdir_restrict(struct file *, struct dir_context *);
+ extern int proc_readdir_de(struct proc_dir_entry *, struct file *, struct dir_context *);
+ 
+ static inline struct proc_dir_entry *pde_get(struct proc_dir_entry *pde)
+diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
+index a352d57..cb94a5c 100644
+--- a/fs/proc/interrupts.c
++++ b/fs/proc/interrupts.c
+@@ -47,7 +47,11 @@ static const struct file_operations proc_interrupts_operations = {
+ 
+ static int __init proc_interrupts_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++	proc_create_grsec("interrupts", 0, NULL, &proc_interrupts_operations);
++#else
+ 	proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
++#endif
+ 	return 0;
+ }
+ fs_initcall(proc_interrupts_init);
+diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
+index 39e6ef3..41c4a62 100644
+--- a/fs/proc/kcore.c
++++ b/fs/proc/kcore.c
+@@ -483,9 +483,10 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
+ 	 * the addresses in the elf_phdr on our list.
+ 	 */
+ 	start = kc_offset_to_vaddr(*fpos - elf_buflen);
+-	if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
++	tsz = PAGE_SIZE - (start & ~PAGE_MASK);
++	if (tsz > buflen)
+ 		tsz = buflen;
+-		
++
+ 	while (buflen) {
+ 		struct kcore_list *m;
+ 
+@@ -515,19 +516,20 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
+ 		} else {
+ 			if (kern_addr_valid(start)) {
+ 				unsigned long n;
++				char *elf_buf;
++				mm_segment_t oldfs;
+ 
+-				n = copy_to_user(buffer, (char *)start, tsz);
+-				/*
+-				 * We cannot distinguish between fault on source
+-				 * and fault on destination. When this happens
+-				 * we clear too and hope it will trigger the
+-				 * EFAULT again.
+-				 */
+-				if (n) { 
+-					if (clear_user(buffer + tsz - n,
+-								n))
+-						return -EFAULT;
+-				}
++				elf_buf = kzalloc(tsz, GFP_KERNEL);
++				if (!elf_buf)
++					return -ENOMEM;
++				oldfs = get_fs();
++				set_fs(KERNEL_DS);
++				n = __copy_from_user(elf_buf, (const void __user *)start, tsz);
++				set_fs(oldfs);
++				n = copy_to_user(buffer, elf_buf, tsz);
++				kfree(elf_buf);
++				if (n)
++					return -EFAULT;
+ 			} else {
+ 				if (clear_user(buffer, tsz))
+ 					return -EFAULT;
+@@ -547,6 +549,9 @@ read_kcore(struct file *file, char __user *buffer, size_t buflen, loff_t *fpos)
+ 
+ static int open_kcore(struct inode *inode, struct file *filp)
+ {
++#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
++	return -EPERM;
++#endif
+ 	if (!capable(CAP_SYS_RAWIO))
+ 		return -EPERM;
+ 	if (kcore_need_update)
+diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
+index 136e548..1f88922 100644
+--- a/fs/proc/meminfo.c
++++ b/fs/proc/meminfo.c
+@@ -187,7 +187,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
+ 		vmi.used >> 10,
+ 		vmi.largest_chunk >> 10
+ #ifdef CONFIG_MEMORY_FAILURE
+-		,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10)
++		,atomic_long_read_unchecked(&num_poisoned_pages) << (PAGE_SHIFT - 10)
+ #endif
+ #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ 		,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) *
+diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
+index d4a3574..b421ce9 100644
+--- a/fs/proc/nommu.c
++++ b/fs/proc/nommu.c
+@@ -64,7 +64,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
+ 
+ 	if (file) {
+ 		seq_pad(m, ' ');
+-		seq_path(m, &file->f_path, "");
++		seq_path(m, &file->f_path, "\n\\");
+ 	}
+ 
+ 	seq_putc(m, '\n');
+diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
+index 4677bb7..dad3045 100644
+--- a/fs/proc/proc_net.c
++++ b/fs/proc/proc_net.c
+@@ -23,9 +23,27 @@
+ #include <linux/nsproxy.h>
+ #include <net/net_namespace.h>
+ #include <linux/seq_file.h>
++#include <linux/grsecurity.h>
+ 
+ #include "internal.h"
+ 
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++static struct seq_operations *ipv6_seq_ops_addr;
++
++void register_ipv6_seq_ops_addr(struct seq_operations *addr)
++{
++	ipv6_seq_ops_addr = addr;
++}
++
++void unregister_ipv6_seq_ops_addr(void)
++{
++	ipv6_seq_ops_addr = NULL;
++}
++
++EXPORT_SYMBOL_GPL(register_ipv6_seq_ops_addr);
++EXPORT_SYMBOL_GPL(unregister_ipv6_seq_ops_addr);
++#endif
++
+ static inline struct net *PDE_NET(struct proc_dir_entry *pde)
+ {
+ 	return pde->parent->data;
+@@ -36,6 +54,8 @@ static struct net *get_proc_net(const struct inode *inode)
+ 	return maybe_get_net(PDE_NET(PDE(inode)));
+ }
+ 
++extern const struct seq_operations dev_seq_ops;
++
+ int seq_open_net(struct inode *ino, struct file *f,
+ 		 const struct seq_operations *ops, int size)
+ {
+@@ -44,6 +64,14 @@ int seq_open_net(struct inode *ino, struct file *f,
+ 
+ 	BUG_ON(size < sizeof(*p));
+ 
++	/* only permit access to /proc/net/dev */
++	if (
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	    ops != ipv6_seq_ops_addr && 
++#endif
++	    ops != &dev_seq_ops && gr_proc_is_restricted())
++		return -EACCES;
++
+ 	net = get_proc_net(ino);
+ 	if (net == NULL)
+ 		return -ENXIO;
+@@ -66,6 +94,9 @@ int single_open_net(struct inode *inode, struct file *file,
+ 	int err;
+ 	struct net *net;
+ 
++	if (gr_proc_is_restricted())
++		return -EACCES;
++
+ 	err = -ENXIO;
+ 	net = get_proc_net(inode);
+ 	if (net == NULL)
+diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
+index 7129046..6914844 100644
+--- a/fs/proc/proc_sysctl.c
++++ b/fs/proc/proc_sysctl.c
+@@ -11,13 +11,21 @@
+ #include <linux/namei.h>
+ #include <linux/mm.h>
+ #include <linux/module.h>
++#include <linux/nsproxy.h>
++#ifdef CONFIG_GRKERNSEC
++#include <net/net_namespace.h>
++#endif
+ #include "internal.h"
+ 
++extern int gr_handle_chroot_sysctl(const int op);
++extern int gr_handle_sysctl_mod(const char *dirname, const char *name,
++				const int op);
++
+ static const struct dentry_operations proc_sys_dentry_operations;
+ static const struct file_operations proc_sys_file_operations;
+-static const struct inode_operations proc_sys_inode_operations;
++const struct inode_operations proc_sys_inode_operations;
+ static const struct file_operations proc_sys_dir_file_operations;
+-static const struct inode_operations proc_sys_dir_operations;
++const struct inode_operations proc_sys_dir_operations;
+ 
+ void proc_sys_poll_notify(struct ctl_table_poll *poll)
+ {
+@@ -467,6 +475,9 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
+ 
+ 	err = NULL;
+ 	d_set_d_op(dentry, &proc_sys_dentry_operations);
++
++	gr_handle_proc_create(dentry, inode);
++
+ 	d_add(dentry, inode);
+ 
+ out:
+@@ -482,6 +493,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
+ 	struct inode *inode = file_inode(filp);
+ 	struct ctl_table_header *head = grab_header(inode);
+ 	struct ctl_table *table = PROC_I(inode)->sysctl_entry;
++	int op = write ? MAY_WRITE : MAY_READ;
+ 	ssize_t error;
+ 	size_t res;
+ 
+@@ -493,7 +505,7 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
+ 	 * and won't be until we finish.
+ 	 */
+ 	error = -EPERM;
+-	if (sysctl_perm(head, table, write ? MAY_WRITE : MAY_READ))
++	if (sysctl_perm(head, table, op))
+ 		goto out;
+ 
+ 	/* if that can happen at all, it should be -EINVAL, not -EISDIR */
+@@ -501,6 +513,27 @@ static ssize_t proc_sys_call_handler(struct file *filp, void __user *buf,
+ 	if (!table->proc_handler)
+ 		goto out;
+ 
++#ifdef CONFIG_GRKERNSEC
++	error = -EPERM;
++	if (gr_handle_chroot_sysctl(op))
++		goto out;
++	dget(filp->f_path.dentry);
++	if (gr_handle_sysctl_mod(filp->f_path.dentry->d_parent->d_name.name, table->procname, op)) {
++		dput(filp->f_path.dentry);
++		goto out;
++	}
++	dput(filp->f_path.dentry);
++	if (!gr_acl_handle_open(filp->f_path.dentry, filp->f_path.mnt, op))
++		goto out;
++	if (write) {
++		if (current->nsproxy->net_ns != table->extra2) {
++			if (!capable(CAP_SYS_ADMIN))
++				goto out;
++		} else if (!ns_capable(current->nsproxy->net_ns->user_ns, CAP_NET_ADMIN))
++			goto out;
++	}
++#endif
++
+ 	/* careful: calling conventions are nasty here */
+ 	res = count;
+ 	error = table->proc_handler(table, write, buf, &res, ppos);
+@@ -598,6 +631,9 @@ static bool proc_sys_fill_cache(struct file *file,
+ 				return false;
+ 			} else {
+ 				d_set_d_op(child, &proc_sys_dentry_operations);
++
++				gr_handle_proc_create(child, inode);
++
+ 				d_add(child, inode);
+ 			}
+ 		} else {
+@@ -641,6 +677,9 @@ static int scan(struct ctl_table_header *head, ctl_table *table,
+ 	if ((*pos)++ < ctx->pos)
+ 		return true;
+ 
++	if (!gr_acl_handle_hidden_file(file->f_path.dentry, file->f_path.mnt))
++		return 0;
++
+ 	if (unlikely(S_ISLNK(table->mode)))
+ 		res = proc_sys_link_fill_cache(file, ctx, head, table);
+ 	else
+@@ -734,6 +773,9 @@ static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct
+ 	if (IS_ERR(head))
+ 		return PTR_ERR(head);
+ 
++	if (table && !gr_acl_handle_hidden_file(dentry, mnt))
++		return -ENOENT;
++
+ 	generic_fillattr(inode, stat);
+ 	if (table)
+ 		stat->mode = (stat->mode & S_IFMT) | table->mode;
+@@ -756,13 +798,13 @@ static const struct file_operations proc_sys_dir_file_operations = {
+ 	.llseek		= generic_file_llseek,
+ };
+ 
+-static const struct inode_operations proc_sys_inode_operations = {
++const struct inode_operations proc_sys_inode_operations = {
+ 	.permission	= proc_sys_permission,
+ 	.setattr	= proc_sys_setattr,
+ 	.getattr	= proc_sys_getattr,
+ };
+ 
+-static const struct inode_operations proc_sys_dir_operations = {
++const struct inode_operations proc_sys_dir_operations = {
+ 	.lookup		= proc_sys_lookup,
+ 	.permission	= proc_sys_permission,
+ 	.setattr	= proc_sys_setattr,
+@@ -839,7 +881,7 @@ static struct ctl_dir *find_subdir(struct ctl_dir *dir,
+ static struct ctl_dir *new_dir(struct ctl_table_set *set,
+ 			       const char *name, int namelen)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 	struct ctl_dir *new;
+ 	struct ctl_node *node;
+ 	char *new_name;
+@@ -851,7 +893,7 @@ static struct ctl_dir *new_dir(struct ctl_table_set *set,
+ 		return NULL;
+ 
+ 	node = (struct ctl_node *)(new + 1);
+-	table = (struct ctl_table *)(node + 1);
++	table = (ctl_table_no_const *)(node + 1);
+ 	new_name = (char *)(table + 2);
+ 	memcpy(new_name, name, namelen);
+ 	new_name[namelen] = '\0';
+@@ -1020,7 +1062,8 @@ static int sysctl_check_table(const char *path, struct ctl_table *table)
+ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table *table,
+ 	struct ctl_table_root *link_root)
+ {
+-	struct ctl_table *link_table, *entry, *link;
++	ctl_table_no_const *link_table, *link;
++	struct ctl_table *entry;
+ 	struct ctl_table_header *links;
+ 	struct ctl_node *node;
+ 	char *link_name;
+@@ -1043,7 +1086,7 @@ static struct ctl_table_header *new_links(struct ctl_dir *dir, struct ctl_table
+ 		return NULL;
+ 
+ 	node = (struct ctl_node *)(links + 1);
+-	link_table = (struct ctl_table *)(node + nr_entries);
++	link_table = (ctl_table_no_const *)(node + nr_entries);
+ 	link_name = (char *)&link_table[nr_entries + 1];
+ 
+ 	for (link = link_table, entry = table; entry->procname; link++, entry++) {
+@@ -1291,8 +1334,8 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
+ 	struct ctl_table_header ***subheader, struct ctl_table_set *set,
+ 	struct ctl_table *table)
+ {
+-	struct ctl_table *ctl_table_arg = NULL;
+-	struct ctl_table *entry, *files;
++	ctl_table_no_const *ctl_table_arg = NULL, *files = NULL;
++	struct ctl_table *entry;
+ 	int nr_files = 0;
+ 	int nr_dirs = 0;
+ 	int err = -ENOMEM;
+@@ -1304,10 +1347,9 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
+ 			nr_files++;
+ 	}
+ 
+-	files = table;
+ 	/* If there are mixed files and directories we need a new table */
+ 	if (nr_dirs && nr_files) {
+-		struct ctl_table *new;
++		ctl_table_no_const *new;
+ 		files = kzalloc(sizeof(struct ctl_table) * (nr_files + 1),
+ 				GFP_KERNEL);
+ 		if (!files)
+@@ -1325,7 +1367,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
+ 	/* Register everything except a directory full of subdirectories */
+ 	if (nr_files || !nr_dirs) {
+ 		struct ctl_table_header *header;
+-		header = __register_sysctl_table(set, path, files);
++		header = __register_sysctl_table(set, path, files ? files : table);
+ 		if (!header) {
+ 			kfree(ctl_table_arg);
+ 			goto out;
+diff --git a/fs/proc/root.c b/fs/proc/root.c
+index 87dbcbe..55e1b4d 100644
+--- a/fs/proc/root.c
++++ b/fs/proc/root.c
+@@ -186,7 +186,15 @@ void __init proc_root_init(void)
+ #ifdef CONFIG_PROC_DEVICETREE
+ 	proc_device_tree_init();
+ #endif
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL);
++#endif
++#else
+ 	proc_mkdir("bus", NULL);
++#endif
+ 	proc_sys_init();
+ }
+ 
+diff --git a/fs/proc/stat.c b/fs/proc/stat.c
+index dbd0272..3cd5915 100644
+--- a/fs/proc/stat.c
++++ b/fs/proc/stat.c
+@@ -11,6 +11,7 @@
+ #include <linux/irqnr.h>
+ #include <asm/cputime.h>
+ #include <linux/tick.h>
++#include <linux/grsecurity.h>
+ 
+ #ifndef arch_irq_stat_cpu
+ #define arch_irq_stat_cpu(cpu) 0
+@@ -87,6 +88,18 @@ static int show_stat(struct seq_file *p, void *v)
+ 	u64 sum_softirq = 0;
+ 	unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
+ 	struct timespec boottime;
++	int unrestricted = 1;
++
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++		&& !in_group_p(grsec_proc_gid)
++#endif
++	)
++		unrestricted = 0;
++#endif
++#endif
+ 
+ 	user = nice = system = idle = iowait =
+ 		irq = softirq = steal = 0;
+@@ -99,23 +112,25 @@ static int show_stat(struct seq_file *p, void *v)
+ 		nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
+ 		system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
+ 		idle += get_idle_time(i);
+-		iowait += get_iowait_time(i);
+-		irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
+-		softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
+-		steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
+-		guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
+-		guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
+-		sum += kstat_cpu_irqs_sum(i);
+-		sum += arch_irq_stat_cpu(i);
++		if (unrestricted) {
++			iowait += get_iowait_time(i);
++			irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
++			softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
++			steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
++			guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
++			guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
++			sum += kstat_cpu_irqs_sum(i);
++			sum += arch_irq_stat_cpu(i);
++			for (j = 0; j < NR_SOFTIRQS; j++) {
++				unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
+ 
+-		for (j = 0; j < NR_SOFTIRQS; j++) {
+-			unsigned int softirq_stat = kstat_softirqs_cpu(j, i);
+-
+-			per_softirq_sums[j] += softirq_stat;
+-			sum_softirq += softirq_stat;
++				per_softirq_sums[j] += softirq_stat;
++				sum_softirq += softirq_stat;
++			}
+ 		}
+ 	}
+-	sum += arch_irq_stat();
++	if (unrestricted)
++		sum += arch_irq_stat();
+ 
+ 	seq_puts(p, "cpu ");
+ 	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
+@@ -136,12 +151,14 @@ static int show_stat(struct seq_file *p, void *v)
+ 		nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
+ 		system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
+ 		idle = get_idle_time(i);
+-		iowait = get_iowait_time(i);
+-		irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
+-		softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
+-		steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
+-		guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
+-		guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
++		if (unrestricted) {
++			iowait = get_iowait_time(i);
++			irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
++			softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
++			steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
++			guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
++			guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
++		}
+ 		seq_printf(p, "cpu%d", i);
+ 		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
+ 		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
+@@ -159,7 +176,7 @@ static int show_stat(struct seq_file *p, void *v)
+ 
+ 	/* sum again ? it could be updated? */
+ 	for_each_irq_nr(j)
+-		seq_put_decimal_ull(p, ' ', kstat_irqs_usr(j));
++		seq_put_decimal_ull(p, ' ', unrestricted ? kstat_irqs_usr(j) : 0ULL);
+ 
+ 	seq_printf(p,
+ 		"\nctxt %llu\n"
+@@ -167,11 +184,11 @@ static int show_stat(struct seq_file *p, void *v)
+ 		"processes %lu\n"
+ 		"procs_running %lu\n"
+ 		"procs_blocked %lu\n",
+-		nr_context_switches(),
++		unrestricted ? nr_context_switches() : 0ULL,
+ 		(unsigned long)jif,
+-		total_forks,
+-		nr_running(),
+-		nr_iowait());
++		unrestricted ? total_forks : 0UL,
++		unrestricted ? nr_running() : 0UL,
++		unrestricted ? nr_iowait() : 0UL);
+ 
+ 	seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);
+ 
+diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
+index eaa7374..c531bc5 100644
+--- a/fs/proc/task_mmu.c
++++ b/fs/proc/task_mmu.c
+@@ -13,12 +13,19 @@
+ #include <linux/swap.h>
+ #include <linux/swapops.h>
+ #include <linux/mmu_notifier.h>
++#include <linux/grsecurity.h>
+ 
+ #include <asm/elf.h>
+ #include <asm/uaccess.h>
+ #include <asm/tlbflush.h>
+ #include "internal.h"
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \
++			     (_mm->pax_flags & MF_PAX_RANDMMAP || \
++			      _mm->pax_flags & MF_PAX_SEGMEXEC))
++#endif
++
+ void task_mem(struct seq_file *m, struct mm_struct *mm)
+ {
+ 	unsigned long data, text, lib, swap;
+@@ -54,8 +61,13 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
+ 		"VmExe:\t%8lu kB\n"
+ 		"VmLib:\t%8lu kB\n"
+ 		"VmPTE:\t%8lu kB\n"
+-		"VmSwap:\t%8lu kB\n",
+-		hiwater_vm << (PAGE_SHIFT-10),
++		"VmSwap:\t%8lu kB\n"
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++		"CsBase:\t%8lx\nCsLim:\t%8lx\n"
++#endif
++
++		,hiwater_vm << (PAGE_SHIFT-10),
+ 		total_vm << (PAGE_SHIFT-10),
+ 		mm->locked_vm << (PAGE_SHIFT-10),
+ 		mm->pinned_vm << (PAGE_SHIFT-10),
+@@ -65,7 +77,19 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
+ 		mm->stack_vm << (PAGE_SHIFT-10), text, lib,
+ 		(PTRS_PER_PTE * sizeof(pte_t) *
+ 		 atomic_long_read(&mm->nr_ptes)) >> 10,
+-		swap << (PAGE_SHIFT-10));
++		swap << (PAGE_SHIFT-10)
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++		, PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_base
++		, PAX_RAND_FLAGS(mm) ? 0 : mm->context.user_cs_limit
++#else
++		, mm->context.user_cs_base
++		, mm->context.user_cs_limit
++#endif
++#endif
++
++	);
+ }
+ 
+ unsigned long task_vsize(struct mm_struct *mm)
+@@ -271,13 +295,13 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
+ 		pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
+ 	}
+ 
+-	/* We don't show the stack guard page in /proc/maps */
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	start = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start;
++	end = PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end;
++#else
+ 	start = vma->vm_start;
+-	if (stack_guard_page_start(vma, start))
+-		start += PAGE_SIZE;
+ 	end = vma->vm_end;
+-	if (stack_guard_page_end(vma, end))
+-		end -= PAGE_SIZE;
++#endif
+ 
+ 	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
+ 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
+@@ -287,7 +311,11 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
+ 			flags & VM_WRITE ? 'w' : '-',
+ 			flags & VM_EXEC ? 'x' : '-',
+ 			flags & VM_MAYSHARE ? 's' : 'p',
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++			PAX_RAND_FLAGS(mm) ? 0UL : pgoff,
++#else
+ 			pgoff,
++#endif
+ 			MAJOR(dev), MINOR(dev), ino);
+ 
+ 	/*
+@@ -296,7 +324,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
+ 	 */
+ 	if (file) {
+ 		seq_pad(m, ' ');
+-		seq_path(m, &file->f_path, "\n");
++		seq_path(m, &file->f_path, "\n\\");
+ 		goto done;
+ 	}
+ 
+@@ -322,8 +350,9 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
+ 			 * Thread stack in /proc/PID/task/TID/maps or
+ 			 * the main process stack.
+ 			 */
+-			if (!is_pid || (vma->vm_start <= mm->start_stack &&
+-			    vma->vm_end >= mm->start_stack)) {
++			if (!is_pid || (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) ||
++			    (vma->vm_start <= mm->start_stack &&
++			     vma->vm_end >= mm->start_stack)) {
+ 				name = "[stack]";
+ 			} else {
+ 				/* Thread stack in /proc/PID/maps */
+@@ -347,6 +376,13 @@ static int show_map(struct seq_file *m, void *v, int is_pid)
+ 	struct proc_maps_private *priv = m->private;
+ 	struct task_struct *task = priv->task;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (current->exec_id != m->exec_id) {
++		gr_log_badprocpid("maps");
++		return 0;
++	}
++#endif
++
+ 	show_map_vma(m, vma, is_pid);
+ 
+ 	if (m->count < m->size)  /* vma is copied successfully */
+@@ -587,12 +623,23 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
+ 		.private = &mss,
+ 	};
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (current->exec_id != m->exec_id) {
++		gr_log_badprocpid("smaps");
++		return 0;
++	}
++#endif
+ 	memset(&mss, 0, sizeof mss);
+-	mss.vma = vma;
+-	/* mmap_sem is held in m_start */
+-	if (vma->vm_mm && !is_vm_hugetlb_page(vma))
+-		walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
+-
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (!PAX_RAND_FLAGS(vma->vm_mm)) {
++#endif
++		mss.vma = vma;
++		/* mmap_sem is held in m_start */
++		if (vma->vm_mm && !is_vm_hugetlb_page(vma))
++			walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk);
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	}
++#endif
+ 	show_map_vma(m, vma, is_pid);
+ 
+ 	seq_printf(m,
+@@ -610,7 +657,11 @@ static int show_smap(struct seq_file *m, void *v, int is_pid)
+ 		   "KernelPageSize: %8lu kB\n"
+ 		   "MMUPageSize:    %8lu kB\n"
+ 		   "Locked:         %8lu kB\n",
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++		   PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10,
++#else
+ 		   (vma->vm_end - vma->vm_start) >> 10,
++#endif
+ 		   mss.resident >> 10,
+ 		   (unsigned long)(mss.pss >> (10 + PSS_SHIFT)),
+ 		   mss.shared_clean  >> 10,
+@@ -1414,6 +1465,13 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
+ 	char buffer[64];
+ 	int nid;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (current->exec_id != m->exec_id) {
++		gr_log_badprocpid("numa_maps");
++		return 0;
++	}
++#endif
++
+ 	if (!mm)
+ 		return 0;
+ 
+@@ -1431,11 +1489,15 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
+ 	mpol_to_str(buffer, sizeof(buffer), pol);
+ 	mpol_cond_put(pol);
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	seq_printf(m, "%08lx %s", PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : vma->vm_start, buffer);
++#else
+ 	seq_printf(m, "%08lx %s", vma->vm_start, buffer);
++#endif
+ 
+ 	if (file) {
+ 		seq_printf(m, " file=");
+-		seq_path(m, &file->f_path, "\n\t= ");
++		seq_path(m, &file->f_path, "\n\t\\= ");
+ 	} else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
+ 		seq_printf(m, " heap");
+ 	} else {
+diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
+index 678455d..ebd3245 100644
+--- a/fs/proc/task_nommu.c
++++ b/fs/proc/task_nommu.c
+@@ -51,7 +51,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
+ 	else
+ 		bytes += kobjsize(mm);
+ 	
+-	if (current->fs && current->fs->users > 1)
++	if (current->fs && atomic_read(&current->fs->users) > 1)
+ 		sbytes += kobjsize(current->fs);
+ 	else
+ 		bytes += kobjsize(current->fs);
+@@ -161,7 +161,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
+ 
+ 	if (file) {
+ 		seq_pad(m, ' ');
+-		seq_path(m, &file->f_path, "");
++		seq_path(m, &file->f_path, "\n\\");
+ 	} else if (mm) {
+ 		pid_t tid = vm_is_stack(priv->task, vma, is_pid);
+ 
+diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
+index 88d4585..c10bfeb 100644
+--- a/fs/proc/vmcore.c
++++ b/fs/proc/vmcore.c
+@@ -105,9 +105,13 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
+ 			nr_bytes = count;
+ 
+ 		/* If pfn is not ram, return zeros for sparse dump files */
+-		if (pfn_is_ram(pfn) == 0)
+-			memset(buf, 0, nr_bytes);
+-		else {
++		if (pfn_is_ram(pfn) == 0) {
++			if (userbuf) {
++				if (clear_user((char __force_user *)buf, nr_bytes))
++					return -EFAULT;
++			} else
++				memset(buf, 0, nr_bytes);
++		} else {
+ 			tmp = copy_oldmem_page(pfn, buf, nr_bytes,
+ 						offset, userbuf);
+ 			if (tmp < 0)
+@@ -170,7 +174,7 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
+ static int copy_to(void *target, void *src, size_t size, int userbuf)
+ {
+ 	if (userbuf) {
+-		if (copy_to_user((char __user *) target, src, size))
++		if (copy_to_user((char __force_user *) target, src, size))
+ 			return -EFAULT;
+ 	} else {
+ 		memcpy(target, src, size);
+@@ -233,7 +237,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
+ 		if (*fpos < m->offset + m->size) {
+ 			tsz = min_t(size_t, m->offset + m->size - *fpos, buflen);
+ 			start = m->paddr + *fpos - m->offset;
+-			tmp = read_from_oldmem(buffer, tsz, &start, userbuf);
++			tmp = read_from_oldmem((char __force_kernel *)buffer, tsz, &start, userbuf);
+ 			if (tmp < 0)
+ 				return tmp;
+ 			buflen -= tsz;
+@@ -253,7 +257,7 @@ static ssize_t __read_vmcore(char *buffer, size_t buflen, loff_t *fpos,
+ static ssize_t read_vmcore(struct file *file, char __user *buffer,
+ 			   size_t buflen, loff_t *fpos)
+ {
+-	return __read_vmcore((__force char *) buffer, buflen, fpos, 1);
++	return __read_vmcore((__force_kernel char *) buffer, buflen, fpos, 1);
+ }
+ 
+ /*
+diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
+index b00fcc9..e0c6381 100644
+--- a/fs/qnx6/qnx6.h
++++ b/fs/qnx6/qnx6.h
+@@ -74,7 +74,7 @@ enum {
+ 	BYTESEX_BE,
+ };
+ 
+-static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
++static inline __u64 __intentional_overflow(-1) fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n)
+ {
+ 	if (sbi->s_bytesex == BYTESEX_LE)
+ 		return le64_to_cpu((__force __le64)n);
+@@ -90,7 +90,7 @@ static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n)
+ 		return (__force __fs64)cpu_to_be64(n);
+ }
+ 
+-static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
++static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n)
+ {
+ 	if (sbi->s_bytesex == BYTESEX_LE)
+ 		return le32_to_cpu((__force __le32)n);
+diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
+index 72d2917..c917c12 100644
+--- a/fs/quota/netlink.c
++++ b/fs/quota/netlink.c
+@@ -45,7 +45,7 @@ static struct genl_family quota_genl_family = {
+ void quota_send_warning(struct kqid qid, dev_t dev,
+ 			const char warntype)
+ {
+-	static atomic_t seq;
++	static atomic_unchecked_t seq;
+ 	struct sk_buff *skb;
+ 	void *msg_head;
+ 	int ret;
+@@ -61,7 +61,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
+ 		  "VFS: Not enough memory to send quota warning.\n");
+ 		return;
+ 	}
+-	msg_head = genlmsg_put(skb, 0, atomic_add_return(1, &seq),
++	msg_head = genlmsg_put(skb, 0, atomic_add_return_unchecked(1, &seq),
+ 			&quota_genl_family, 0, QUOTA_NL_C_WARNING);
+ 	if (!msg_head) {
+ 		printk(KERN_ERR
+diff --git a/fs/read_write.c b/fs/read_write.c
+index 28cc9c8..208e4fb 100644
+--- a/fs/read_write.c
++++ b/fs/read_write.c
+@@ -450,7 +450,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
+ 
+ 	old_fs = get_fs();
+ 	set_fs(get_ds());
+-	p = (__force const char __user *)buf;
++	p = (const char __force_user *)buf;
+ 	if (count > MAX_RW_COUNT)
+ 		count =  MAX_RW_COUNT;
+ 	if (file->f_op->write)
+diff --git a/fs/readdir.c b/fs/readdir.c
+index 5b53d99..a6c3049 100644
+--- a/fs/readdir.c
++++ b/fs/readdir.c
+@@ -17,6 +17,7 @@
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
+ #include <linux/unistd.h>
++#include <linux/namei.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -69,6 +70,7 @@ struct old_linux_dirent {
+ struct readdir_callback {
+ 	struct dir_context ctx;
+ 	struct old_linux_dirent __user * dirent;
++	struct file * file;
+ 	int result;
+ };
+ 
+@@ -86,6 +88,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
+ 		buf->result = -EOVERFLOW;
+ 		return -EOVERFLOW;
+ 	}
++
++	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++		return 0;
++
+ 	buf->result++;
+ 	dirent = buf->dirent;
+ 	if (!access_ok(VERIFY_WRITE, dirent,
+@@ -117,6 +123,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned int, fd,
+ 	if (!f.file)
+ 		return -EBADF;
+ 
++	buf.file = f.file;
+ 	error = iterate_dir(f.file, &buf.ctx);
+ 	if (buf.result)
+ 		error = buf.result;
+@@ -142,6 +149,7 @@ struct getdents_callback {
+ 	struct dir_context ctx;
+ 	struct linux_dirent __user * current_dir;
+ 	struct linux_dirent __user * previous;
++	struct file * file;
+ 	int count;
+ 	int error;
+ };
+@@ -163,6 +171,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
+ 		buf->error = -EOVERFLOW;
+ 		return -EOVERFLOW;
+ 	}
++
++	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++		return 0;
++
+ 	dirent = buf->previous;
+ 	if (dirent) {
+ 		if (__put_user(offset, &dirent->d_off))
+@@ -208,6 +220,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, fd,
+ 	if (!f.file)
+ 		return -EBADF;
+ 
++	buf.file = f.file;
+ 	error = iterate_dir(f.file, &buf.ctx);
+ 	if (error >= 0)
+ 		error = buf.error;
+@@ -226,6 +239,7 @@ struct getdents_callback64 {
+ 	struct dir_context ctx;
+ 	struct linux_dirent64 __user * current_dir;
+ 	struct linux_dirent64 __user * previous;
++	struct file *file;
+ 	int count;
+ 	int error;
+ };
+@@ -241,6 +255,10 @@ static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
+ 	buf->error = -EINVAL;	/* only used if we fail.. */
+ 	if (reclen > buf->count)
+ 		return -EINVAL;
++
++	if (!gr_acl_handle_filldir(buf->file, name, namlen, ino))
++		return 0;
++
+ 	dirent = buf->previous;
+ 	if (dirent) {
+ 		if (__put_user(offset, &dirent->d_off))
+@@ -288,6 +306,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int, fd,
+ 	if (!f.file)
+ 		return -EBADF;
+ 
++	buf.file = f.file;
+ 	error = iterate_dir(f.file, &buf.ctx);
+ 	if (error >= 0)
+ 		error = buf.error;
+diff --git a/fs/reiserfs/do_balan.c b/fs/reiserfs/do_balan.c
+index 9a3c68c..767933e 100644
+--- a/fs/reiserfs/do_balan.c
++++ b/fs/reiserfs/do_balan.c
+@@ -1546,7 +1546,7 @@ void do_balance(struct tree_balance *tb,	/* tree_balance structure */
+ 		return;
+ 	}
+ 
+-	atomic_inc(&(fs_generation(tb->tb_sb)));
++	atomic_inc_unchecked(&(fs_generation(tb->tb_sb)));
+ 	do_balance_starts(tb);
+ 
+ 	/* balance leaf returns 0 except if combining L R and S into
+diff --git a/fs/reiserfs/item_ops.c b/fs/reiserfs/item_ops.c
+index ee382ef..f4eb6eb5 100644
+--- a/fs/reiserfs/item_ops.c
++++ b/fs/reiserfs/item_ops.c
+@@ -725,18 +725,18 @@ static void errcatch_print_vi(struct virtual_item *vi)
+ }
+ 
+ static struct item_operations errcatch_ops = {
+-	errcatch_bytes_number,
+-	errcatch_decrement_key,
+-	errcatch_is_left_mergeable,
+-	errcatch_print_item,
+-	errcatch_check_item,
++	.bytes_number = errcatch_bytes_number,
++	.decrement_key = errcatch_decrement_key,
++	.is_left_mergeable = errcatch_is_left_mergeable,
++	.print_item = errcatch_print_item,
++	.check_item = errcatch_check_item,
+ 
+-	errcatch_create_vi,
+-	errcatch_check_left,
+-	errcatch_check_right,
+-	errcatch_part_size,
+-	errcatch_unit_num,
+-	errcatch_print_vi
++	.create_vi = errcatch_create_vi,
++	.check_left = errcatch_check_left,
++	.check_right = errcatch_check_right,
++	.part_size = errcatch_part_size,
++	.unit_num = errcatch_unit_num,
++	.print_vi = errcatch_print_vi
+ };
+ 
+ //////////////////////////////////////////////////////////////////////////////
+diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
+index 02b0b7d..c85018b 100644
+--- a/fs/reiserfs/procfs.c
++++ b/fs/reiserfs/procfs.c
+@@ -114,7 +114,7 @@ static int show_super(struct seq_file *m, void *unused)
+ 		   "SMALL_TAILS " : "NO_TAILS ",
+ 		   replay_only(sb) ? "REPLAY_ONLY " : "",
+ 		   convert_reiserfs(sb) ? "CONV " : "",
+-		   atomic_read(&r->s_generation_counter),
++		   atomic_read_unchecked(&r->s_generation_counter),
+ 		   SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
+ 		   SF(s_do_balance), SF(s_unneeded_left_neighbor),
+ 		   SF(s_good_search_by_key_reada), SF(s_bmaps),
+diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
+index 8d06adf..7e1c9f8 100644
+--- a/fs/reiserfs/reiserfs.h
++++ b/fs/reiserfs/reiserfs.h
+@@ -453,7 +453,7 @@ struct reiserfs_sb_info {
+ 	/* Comment? -Hans */
+ 	wait_queue_head_t s_wait;
+ 	/* To be obsoleted soon by per buffer seals.. -Hans */
+-	atomic_t s_generation_counter;	// increased by one every time the
++	atomic_unchecked_t s_generation_counter;	// increased by one every time the
+ 	// tree gets re-balanced
+ 	unsigned long s_properties;	/* File system properties. Currently holds
+ 					   on-disk FS format */
+@@ -1972,7 +1972,7 @@ static inline loff_t max_reiserfs_offset(struct inode *inode)
+ #define REISERFS_USER_MEM		1	/* reiserfs user memory mode            */
+ 
+ #define fs_generation(s) (REISERFS_SB(s)->s_generation_counter)
+-#define get_generation(s) atomic_read (&fs_generation(s))
++#define get_generation(s) atomic_read_unchecked (&fs_generation(s))
+ #define FILESYSTEM_CHANGED_TB(tb)  (get_generation((tb)->tb_sb) != (tb)->fs_gen)
+ #define __fs_changed(gen,s) (gen != get_generation (s))
+ #define fs_changed(gen,s)		\
+diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
+index 2c80335..04d987d 100644
+--- a/fs/reiserfs/super.c
++++ b/fs/reiserfs/super.c
+@@ -1783,6 +1783,10 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
+ 	sbi->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
+ 	sbi->s_mount_opt |= (1 << REISERFS_ERROR_RO);
+ 	sbi->s_mount_opt |= (1 << REISERFS_BARRIER_FLUSH);
++#ifdef CONFIG_REISERFS_FS_XATTR
++	/* turn on user xattrs by default */
++	sbi->s_mount_opt |= (1 << REISERFS_XATTRS_USER);
++#endif
+ 	/* no preallocation minimum, be smart in
+ 	   reiserfs_file_write instead */
+ 	sbi->s_alloc_options.preallocmin = 0;
+diff --git a/fs/select.c b/fs/select.c
+index 467bb1c..cf9d65a 100644
+--- a/fs/select.c
++++ b/fs/select.c
+@@ -20,6 +20,7 @@
+ #include <linux/export.h>
+ #include <linux/slab.h>
+ #include <linux/poll.h>
++#include <linux/security.h>
+ #include <linux/personality.h> /* for STICKY_TIMEOUTS */
+ #include <linux/file.h>
+ #include <linux/fdtable.h>
+@@ -880,6 +881,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,
+  	struct poll_list *walk = head;
+  	unsigned long todo = nfds;
+ 
++	gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1);
+ 	if (nfds > rlimit(RLIMIT_NOFILE))
+ 		return -EINVAL;
+ 
+diff --git a/fs/seq_file.c b/fs/seq_file.c
+index 1d641bb..9ca7f61 100644
+--- a/fs/seq_file.c
++++ b/fs/seq_file.c
+@@ -10,6 +10,8 @@
+ #include <linux/seq_file.h>
+ #include <linux/slab.h>
+ #include <linux/cred.h>
++#include <linux/sched.h>
++#include <linux/grsecurity.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/page.h>
+@@ -60,6 +62,9 @@ int seq_open(struct file *file, const struct seq_operations *op)
+ #ifdef CONFIG_USER_NS
+ 	p->user_ns = file->f_cred->user_ns;
+ #endif
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	p->exec_id = current->exec_id;
++#endif
+ 
+ 	/*
+ 	 * Wrappers around seq_open(e.g. swaps_open) need to be
+@@ -82,6 +87,16 @@ int seq_open(struct file *file, const struct seq_operations *op)
+ }
+ EXPORT_SYMBOL(seq_open);
+ 
++
++int seq_open_restrict(struct file *file, const struct seq_operations *op)
++{
++	if (gr_proc_is_restricted())
++		return -EACCES;
++
++	return seq_open(file, op);
++}
++EXPORT_SYMBOL(seq_open_restrict);
++
+ static int traverse(struct seq_file *m, loff_t offset)
+ {
+ 	loff_t pos = 0, index;
+@@ -96,7 +111,7 @@ static int traverse(struct seq_file *m, loff_t offset)
+ 		return 0;
+ 	}
+ 	if (!m->buf) {
+-		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
++		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
+ 		if (!m->buf)
+ 			return -ENOMEM;
+ 	}
+@@ -137,7 +152,7 @@ Eoverflow:
+ 	m->op->stop(m, p);
+ 	kfree(m->buf);
+ 	m->count = 0;
+-	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
++	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
+ 	return !m->buf ? -ENOMEM : -EAGAIN;
+ }
+ 
+@@ -153,7 +168,7 @@ Eoverflow:
+ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
+ {
+ 	struct seq_file *m = file->private_data;
+-	size_t copied = 0;
++	ssize_t copied = 0;
+ 	loff_t pos;
+ 	size_t n;
+ 	void *p;
+@@ -192,7 +207,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
+ 
+ 	/* grab buffer if we didn't have one */
+ 	if (!m->buf) {
+-		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL);
++		m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL | GFP_USERCOPY);
+ 		if (!m->buf)
+ 			goto Enomem;
+ 	}
+@@ -234,7 +249,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
+ 		m->op->stop(m, p);
+ 		kfree(m->buf);
+ 		m->count = 0;
+-		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
++		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL | GFP_USERCOPY);
+ 		if (!m->buf)
+ 			goto Enomem;
+ 		m->version = 0;
+@@ -584,7 +599,7 @@ static void single_stop(struct seq_file *p, void *v)
+ int single_open(struct file *file, int (*show)(struct seq_file *, void *),
+ 		void *data)
+ {
+-	struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
++	seq_operations_no_const *op = kzalloc(sizeof(*op), GFP_KERNEL);
+ 	int res = -ENOMEM;
+ 
+ 	if (op) {
+@@ -605,7 +620,7 @@ EXPORT_SYMBOL(single_open);
+ int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
+ 		void *data, size_t size)
+ {
+-	char *buf = kmalloc(size, GFP_KERNEL);
++	char *buf = kmalloc(size, GFP_KERNEL | GFP_USERCOPY);
+ 	int ret;
+ 	if (!buf)
+ 		return -ENOMEM;
+@@ -620,6 +635,17 @@ int single_open_size(struct file *file, int (*show)(struct seq_file *, void *),
+ }
+ EXPORT_SYMBOL(single_open_size);
+ 
++int single_open_restrict(struct file *file, int (*show)(struct seq_file *, void *),
++		void *data)
++{
++	if (gr_proc_is_restricted())
++		return -EACCES;
++
++	return single_open(file, show, data);
++}
++EXPORT_SYMBOL(single_open_restrict);
++
++
+ int single_release(struct inode *inode, struct file *file)
+ {
+ 	const struct seq_operations *op = ((struct seq_file *)file->private_data)->op;
+diff --git a/fs/splice.c b/fs/splice.c
+index 12028fa..2cde9b2 100644
+--- a/fs/splice.c
++++ b/fs/splice.c
+@@ -196,7 +196,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
+ 	pipe_lock(pipe);
+ 
+ 	for (;;) {
+-		if (!pipe->readers) {
++		if (!atomic_read(&pipe->readers)) {
+ 			send_sig(SIGPIPE, current, 0);
+ 			if (!ret)
+ 				ret = -EPIPE;
+@@ -219,7 +219,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
+ 			page_nr++;
+ 			ret += buf->len;
+ 
+-			if (pipe->files)
++			if (atomic_read(&pipe->files))
+ 				do_wakeup = 1;
+ 
+ 			if (!--spd->nr_pages)
+@@ -250,9 +250,9 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
+ 			do_wakeup = 0;
+ 		}
+ 
+-		pipe->waiting_writers++;
++		atomic_inc(&pipe->waiting_writers);
+ 		pipe_wait(pipe);
+-		pipe->waiting_writers--;
++		atomic_dec(&pipe->waiting_writers);
+ 	}
+ 
+ 	pipe_unlock(pipe);
+@@ -583,7 +583,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
+ 	old_fs = get_fs();
+ 	set_fs(get_ds());
+ 	/* The cast to a user pointer is valid due to the set_fs() */
+-	res = vfs_readv(file, (const struct iovec __user *)vec, vlen, &pos);
++	res = vfs_readv(file, (const struct iovec __force_user *)vec, vlen, &pos);
+ 	set_fs(old_fs);
+ 
+ 	return res;
+@@ -598,7 +598,7 @@ ssize_t kernel_write(struct file *file, const char *buf, size_t count,
+ 	old_fs = get_fs();
+ 	set_fs(get_ds());
+ 	/* The cast to a user pointer is valid due to the set_fs() */
+-	res = vfs_write(file, (__force const char __user *)buf, count, &pos);
++	res = vfs_write(file, (const char __force_user *)buf, count, &pos);
+ 	set_fs(old_fs);
+ 
+ 	return res;
+@@ -651,7 +651,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
+ 			goto err;
+ 
+ 		this_len = min_t(size_t, len, PAGE_CACHE_SIZE - offset);
+-		vec[i].iov_base = (void __user *) page_address(page);
++		vec[i].iov_base = (void __force_user *) page_address(page);
+ 		vec[i].iov_len = this_len;
+ 		spd.pages[i] = page;
+ 		spd.nr_pages++;
+@@ -847,7 +847,7 @@ int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_desc *sd,
+ 			ops->release(pipe, buf);
+ 			pipe->curbuf = (pipe->curbuf + 1) & (pipe->buffers - 1);
+ 			pipe->nrbufs--;
+-			if (pipe->files)
++			if (atomic_read(&pipe->files))
+ 				sd->need_wakeup = true;
+ 		}
+ 
+@@ -872,10 +872,10 @@ EXPORT_SYMBOL(splice_from_pipe_feed);
+ int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd)
+ {
+ 	while (!pipe->nrbufs) {
+-		if (!pipe->writers)
++		if (!atomic_read(&pipe->writers))
+ 			return 0;
+ 
+-		if (!pipe->waiting_writers && sd->num_spliced)
++		if (!atomic_read(&pipe->waiting_writers) && sd->num_spliced)
+ 			return 0;
+ 
+ 		if (sd->flags & SPLICE_F_NONBLOCK)
+@@ -1171,7 +1171,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
+ 	long ret, bytes;
+ 	umode_t i_mode;
+ 	size_t len;
+-	int i, flags;
++	int i, flags, more;
+ 
+ 	/*
+ 	 * We require the input being a regular file, as we don't want to
+@@ -1197,7 +1197,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
+ 		 * out of the pipe right after the splice_to_pipe(). So set
+ 		 * PIPE_READERS appropriately.
+ 		 */
+-		pipe->readers = 1;
++		atomic_set(&pipe->readers, 1);
+ 
+ 		current->splice_pipe = pipe;
+ 	}
+@@ -1214,6 +1214,7 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
+ 	 * Don't block on output, we have to drain the direct pipe.
+ 	 */
+ 	sd->flags &= ~SPLICE_F_NONBLOCK;
++	more = sd->flags & SPLICE_F_MORE;
+ 
+ 	while (len) {
+ 		size_t read_len;
+@@ -1227,6 +1228,15 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd,
+ 		sd->total_len = read_len;
+ 
+ 		/*
++		 * If more data is pending, set SPLICE_F_MORE
++		 * If this is the last data and SPLICE_F_MORE was not set
++		 * initially, clears it.
++		 */
++		if (read_len < len)
++			sd->flags |= SPLICE_F_MORE;
++		else if (!more)
++			sd->flags &= ~SPLICE_F_MORE;
++		/*
+ 		 * NOTE: nonblocking mode only applies to the input. We
+ 		 * must not do the output in nonblocking mode as then we
+ 		 * could get stuck data in the internal pipe:
+@@ -1493,6 +1503,7 @@ static int get_iovec_page_array(const struct iovec __user *iov,
+ 
+ 			partial[buffers].offset = off;
+ 			partial[buffers].len = plen;
++			partial[buffers].private = 0;
+ 
+ 			off = 0;
+ 			len -= plen;
+@@ -1795,9 +1806,9 @@ static int ipipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
+ 			ret = -ERESTARTSYS;
+ 			break;
+ 		}
+-		if (!pipe->writers)
++		if (!atomic_read(&pipe->writers))
+ 			break;
+-		if (!pipe->waiting_writers) {
++		if (!atomic_read(&pipe->waiting_writers)) {
+ 			if (flags & SPLICE_F_NONBLOCK) {
+ 				ret = -EAGAIN;
+ 				break;
+@@ -1829,7 +1840,7 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
+ 	pipe_lock(pipe);
+ 
+ 	while (pipe->nrbufs >= pipe->buffers) {
+-		if (!pipe->readers) {
++		if (!atomic_read(&pipe->readers)) {
+ 			send_sig(SIGPIPE, current, 0);
+ 			ret = -EPIPE;
+ 			break;
+@@ -1842,9 +1853,9 @@ static int opipe_prep(struct pipe_inode_info *pipe, unsigned int flags)
+ 			ret = -ERESTARTSYS;
+ 			break;
+ 		}
+-		pipe->waiting_writers++;
++		atomic_inc(&pipe->waiting_writers);
+ 		pipe_wait(pipe);
+-		pipe->waiting_writers--;
++		atomic_dec(&pipe->waiting_writers);
+ 	}
+ 
+ 	pipe_unlock(pipe);
+@@ -1880,14 +1891,14 @@ retry:
+ 	pipe_double_lock(ipipe, opipe);
+ 
+ 	do {
+-		if (!opipe->readers) {
++		if (!atomic_read(&opipe->readers)) {
+ 			send_sig(SIGPIPE, current, 0);
+ 			if (!ret)
+ 				ret = -EPIPE;
+ 			break;
+ 		}
+ 
+-		if (!ipipe->nrbufs && !ipipe->writers)
++		if (!ipipe->nrbufs && !atomic_read(&ipipe->writers))
+ 			break;
+ 
+ 		/*
+@@ -1984,7 +1995,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
+ 	pipe_double_lock(ipipe, opipe);
+ 
+ 	do {
+-		if (!opipe->readers) {
++		if (!atomic_read(&opipe->readers)) {
+ 			send_sig(SIGPIPE, current, 0);
+ 			if (!ret)
+ 				ret = -EPIPE;
+@@ -2029,7 +2040,7 @@ static int link_pipe(struct pipe_inode_info *ipipe,
+ 	 * return EAGAIN if we have the potential of some data in the
+ 	 * future, otherwise just return 0
+ 	 */
+-	if (!ret && ipipe->waiting_writers && (flags & SPLICE_F_NONBLOCK))
++	if (!ret && atomic_read(&ipipe->waiting_writers) && (flags & SPLICE_F_NONBLOCK))
+ 		ret = -EAGAIN;
+ 
+ 	pipe_unlock(ipipe);
+diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c
+index 92fcde7..1687329 100644
+--- a/fs/squashfs/xattr.c
++++ b/fs/squashfs/xattr.c
+@@ -46,8 +46,8 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
+ 						 + msblk->xattr_table;
+ 	int offset = SQUASHFS_XATTR_OFFSET(squashfs_i(inode)->xattr);
+ 	int count = squashfs_i(inode)->xattr_count;
+-	size_t rest = buffer_size;
+-	int err;
++	size_t used = 0;
++	ssize_t err;
+ 
+ 	/* check that the file system has xattrs */
+ 	if (msblk->xattr_id_table == NULL)
+@@ -68,11 +68,11 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
+ 		name_size = le16_to_cpu(entry.size);
+ 		handler = squashfs_xattr_handler(le16_to_cpu(entry.type));
+ 		if (handler)
+-			prefix_size = handler->list(d, buffer, rest, NULL,
++			prefix_size = handler->list(d, buffer, buffer ? buffer_size - used : 0, NULL,
+ 				name_size, handler->flags);
+ 		if (prefix_size) {
+ 			if (buffer) {
+-				if (prefix_size + name_size + 1 > rest) {
++				if (prefix_size + name_size + 1 > buffer_size - used) {
+ 					err = -ERANGE;
+ 					goto failed;
+ 				}
+@@ -86,7 +86,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
+ 				buffer[name_size] = '\0';
+ 				buffer += name_size + 1;
+ 			}
+-			rest -= prefix_size + name_size + 1;
++			used += prefix_size + name_size + 1;
+ 		} else  {
+ 			/* no handler or insuffficient privileges, so skip */
+ 			err = squashfs_read_metadata(sb, NULL, &start,
+@@ -107,7 +107,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer,
+ 		if (err < 0)
+ 			goto failed;
+ 	}
+-	err = buffer_size - rest;
++	err = used;
+ 
+ failed:
+ 	return err;
+diff --git a/fs/stat.c b/fs/stat.c
+index ae0c3ce..9ee641c 100644
+--- a/fs/stat.c
++++ b/fs/stat.c
+@@ -28,8 +28,13 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
+ 	stat->gid = inode->i_gid;
+ 	stat->rdev = inode->i_rdev;
+ 	stat->size = i_size_read(inode);
+-	stat->atime = inode->i_atime;
+-	stat->mtime = inode->i_mtime;
++	if (is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
++		stat->atime = inode->i_ctime;
++		stat->mtime = inode->i_ctime;
++	} else {
++		stat->atime = inode->i_atime;
++		stat->mtime = inode->i_mtime;
++	}
+ 	stat->ctime = inode->i_ctime;
+ 	stat->blksize = (1 << inode->i_blkbits);
+ 	stat->blocks = inode->i_blocks;
+@@ -52,9 +57,16 @@ EXPORT_SYMBOL(generic_fillattr);
+ int vfs_getattr_nosec(struct path *path, struct kstat *stat)
+ {
+ 	struct inode *inode = path->dentry->d_inode;
++	int retval;
+ 
+-	if (inode->i_op->getattr)
+-		return inode->i_op->getattr(path->mnt, path->dentry, stat);
++	if (inode->i_op->getattr) {
++		retval = inode->i_op->getattr(path->mnt, path->dentry, stat);
++		if (!retval && is_sidechannel_device(inode) && !capable_nolog(CAP_MKNOD)) {
++			stat->atime = stat->ctime;
++			stat->mtime = stat->ctime;
++		}
++		return retval;
++	}
+ 
+ 	generic_fillattr(inode, stat);
+ 	return 0;
+diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
+index ee0d761..2f33d21 100644
+--- a/fs/sysfs/dir.c
++++ b/fs/sysfs/dir.c
+@@ -54,6 +54,10 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
+ 	kfree(path);
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
++extern int grsec_enable_sysfs_restrict;
++#endif
++
+ /**
+  * sysfs_create_dir_ns - create a directory for an object with a namespace tag
+  * @kobj: object we're creating directory for
+@@ -62,9 +66,16 @@ void sysfs_warn_dup(struct kernfs_node *parent, const char *name)
+ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
+ {
+ 	struct kernfs_node *parent, *kn;
++	const char *name;
++	umode_t mode = S_IRWXU | S_IRUGO | S_IXUGO;
++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
++	const char *parent_name;
++#endif
+ 
+ 	BUG_ON(!kobj);
+ 
++	name = kobject_name(kobj);
++
+ 	if (kobj->parent)
+ 		parent = kobj->parent->sd;
+ 	else
+@@ -73,11 +84,24 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
+ 	if (!parent)
+ 		return -ENOENT;
+ 
+-	kn = kernfs_create_dir_ns(parent, kobject_name(kobj),
+-				  S_IRWXU | S_IRUGO | S_IXUGO, kobj, ns);
++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
++	parent_name = parent->name;
++	mode = S_IRWXU;
++
++	if ((!strcmp(parent_name, "") && (!strcmp(name, "devices") || !strcmp(name, "fs"))) ||
++	    (!strcmp(parent_name, "devices") && !strcmp(name, "system")) ||
++	    (!strcmp(parent_name, "fs") && (!strcmp(name, "selinux") || !strcmp(name, "fuse") || !strcmp(name, "ecryptfs"))) ||
++	    (!strcmp(parent_name, "system") && !strcmp(name, "cpu")))
++		mode = S_IRWXU | S_IRUGO | S_IXUGO;
++	if (!grsec_enable_sysfs_restrict)
++		mode = S_IRWXU | S_IRUGO | S_IXUGO;
++#endif
++
++	kn = kernfs_create_dir_ns(parent, name,
++				  mode, kobj, ns);
+ 	if (IS_ERR(kn)) {
+ 		if (PTR_ERR(kn) == -EEXIST)
+-			sysfs_warn_dup(parent, kobject_name(kobj));
++			sysfs_warn_dup(parent, name);
+ 		return PTR_ERR(kn);
+ 	}
+ 
+diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
+index 69d4889..a810bd4 100644
+--- a/fs/sysv/sysv.h
++++ b/fs/sysv/sysv.h
+@@ -188,7 +188,7 @@ static inline u32 PDP_swab(u32 x)
+ #endif
+ }
+ 
+-static inline __u32 fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
++static inline __u32 __intentional_overflow(-1) fs32_to_cpu(struct sysv_sb_info *sbi, __fs32 n)
+ {
+ 	if (sbi->s_bytesex == BYTESEX_PDP)
+ 		return PDP_swab((__force __u32)n);
+diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
+index e18b988..f1d4ad0f 100644
+--- a/fs/ubifs/io.c
++++ b/fs/ubifs/io.c
+@@ -155,7 +155,7 @@ int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len)
+ 	return err;
+ }
+ 
+-int ubifs_leb_unmap(struct ubifs_info *c, int lnum)
++int __intentional_overflow(-1) ubifs_leb_unmap(struct ubifs_info *c, int lnum)
+ {
+ 	int err;
+ 
+diff --git a/fs/udf/dir.c b/fs/udf/dir.c
+index a012c51..a7690b4 100644
+--- a/fs/udf/dir.c
++++ b/fs/udf/dir.c
+@@ -167,7 +167,8 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
+ 			continue;
+ 		}
+ 
+-		flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
++		flen = udf_get_filename(dir->i_sb, nameptr, lfi, fname,
++					UDF_NAME_LEN);
+ 		if (!flen)
+ 			continue;
+ 
+diff --git a/fs/udf/inode.c b/fs/udf/inode.c
+index 287cd5f..5252259 100644
+--- a/fs/udf/inode.c
++++ b/fs/udf/inode.c
+@@ -51,7 +51,6 @@ MODULE_LICENSE("GPL");
+ 
+ static umode_t udf_convert_permissions(struct fileEntry *);
+ static int udf_update_inode(struct inode *, int);
+-static void udf_fill_inode(struct inode *, struct buffer_head *);
+ static int udf_sync_inode(struct inode *inode);
+ static int udf_alloc_i_data(struct inode *inode, size_t size);
+ static sector_t inode_getblk(struct inode *, sector_t, int *, int *);
+@@ -1278,15 +1277,27 @@ update_time:
+  */
+ #define UDF_MAX_ICB_NESTING 1024
+ 
+-static void __udf_read_inode(struct inode *inode)
++static int udf_read_inode(struct inode *inode)
+ {
+ 	struct buffer_head *bh = NULL;
+ 	struct fileEntry *fe;
++	struct extendedFileEntry *efe;
+ 	uint16_t ident;
+ 	struct udf_inode_info *iinfo = UDF_I(inode);
++	struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
++	struct kernel_lb_addr *iloc = &iinfo->i_location;
++	unsigned int link_count;
+ 	unsigned int indirections = 0;
++	int ret = -EIO;
+ 
+ reread:
++	if (iloc->logicalBlockNum >=
++	    sbi->s_partmaps[iloc->partitionReferenceNum].s_partition_len) {
++		udf_debug("block=%d, partition=%d out of range\n",
++			  iloc->logicalBlockNum, iloc->partitionReferenceNum);
++		return -EIO;
++	}
++
+ 	/*
+ 	 * Set defaults, but the inode is still incomplete!
+ 	 * Note: get_new_inode() sets the following on a new inode:
+@@ -1299,29 +1310,26 @@ reread:
+ 	 *      i_nlink = 1
+ 	 *      i_op = NULL;
+ 	 */
+-	bh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 0, &ident);
++	bh = udf_read_ptagged(inode->i_sb, iloc, 0, &ident);
+ 	if (!bh) {
+ 		udf_err(inode->i_sb, "(ino %ld) failed !bh\n", inode->i_ino);
+-		make_bad_inode(inode);
+-		return;
++		return -EIO;
+ 	}
+ 
+ 	if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
+ 	    ident != TAG_IDENT_USE) {
+ 		udf_err(inode->i_sb, "(ino %ld) failed ident=%d\n",
+ 			inode->i_ino, ident);
+-		brelse(bh);
+-		make_bad_inode(inode);
+-		return;
++		goto out;
+ 	}
+ 
+ 	fe = (struct fileEntry *)bh->b_data;
++	efe = (struct extendedFileEntry *)bh->b_data;
+ 
+ 	if (fe->icbTag.strategyType == cpu_to_le16(4096)) {
+ 		struct buffer_head *ibh;
+ 
+-		ibh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 1,
+-					&ident);
++		ibh = udf_read_ptagged(inode->i_sb, iloc, 1, &ident);
+ 		if (ident == TAG_IDENT_IE && ibh) {
+ 			struct kernel_lb_addr loc;
+ 			struct indirectEntry *ie;
+@@ -1330,7 +1338,6 @@ reread:
+ 			loc = lelb_to_cpu(ie->indirectICB.extLocation);
+ 
+ 			if (ie->indirectICB.extLength) {
+-				brelse(bh);
+ 				brelse(ibh);
+ 				memcpy(&iinfo->i_location, &loc,
+ 				       sizeof(struct kernel_lb_addr));
+@@ -1339,9 +1346,9 @@ reread:
+ 						"too many ICBs in ICB hierarchy"
+ 						" (max %d supported)\n",
+ 						UDF_MAX_ICB_NESTING);
+-					make_bad_inode(inode);
+-					return;
++					goto out;
+ 				}
++				brelse(bh);
+ 				goto reread;
+ 			}
+ 		}
+@@ -1349,26 +1356,8 @@ reread:
+ 	} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
+ 		udf_err(inode->i_sb, "unsupported strategy type: %d\n",
+ 			le16_to_cpu(fe->icbTag.strategyType));
+-		brelse(bh);
+-		make_bad_inode(inode);
+-		return;
++		goto out;
+ 	}
+-	udf_fill_inode(inode, bh);
+-
+-	brelse(bh);
+-}
+-
+-static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+-{
+-	struct fileEntry *fe;
+-	struct extendedFileEntry *efe;
+-	struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
+-	struct udf_inode_info *iinfo = UDF_I(inode);
+-	unsigned int link_count;
+-
+-	fe = (struct fileEntry *)bh->b_data;
+-	efe = (struct extendedFileEntry *)bh->b_data;
+-
+ 	if (fe->icbTag.strategyType == cpu_to_le16(4))
+ 		iinfo->i_strat4096 = 0;
+ 	else /* if (fe->icbTag.strategyType == cpu_to_le16(4096)) */
+@@ -1385,11 +1374,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+ 	if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_EFE)) {
+ 		iinfo->i_efe = 1;
+ 		iinfo->i_use = 0;
+-		if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+-					sizeof(struct extendedFileEntry))) {
+-			make_bad_inode(inode);
+-			return;
+-		}
++		ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
++					sizeof(struct extendedFileEntry));
++		if (ret)
++			goto out;
+ 		memcpy(iinfo->i_ext.i_data,
+ 		       bh->b_data + sizeof(struct extendedFileEntry),
+ 		       inode->i_sb->s_blocksize -
+@@ -1397,11 +1385,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+ 	} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
+ 		iinfo->i_efe = 0;
+ 		iinfo->i_use = 0;
+-		if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+-						sizeof(struct fileEntry))) {
+-			make_bad_inode(inode);
+-			return;
+-		}
++		ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
++						sizeof(struct fileEntry));
++		if (ret)
++			goto out;
+ 		memcpy(iinfo->i_ext.i_data,
+ 		       bh->b_data + sizeof(struct fileEntry),
+ 		       inode->i_sb->s_blocksize - sizeof(struct fileEntry));
+@@ -1411,18 +1398,18 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+ 		iinfo->i_lenAlloc = le32_to_cpu(
+ 				((struct unallocSpaceEntry *)bh->b_data)->
+ 				 lengthAllocDescs);
+-		if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+-					sizeof(struct unallocSpaceEntry))) {
+-			make_bad_inode(inode);
+-			return;
+-		}
++		ret = udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
++					sizeof(struct unallocSpaceEntry));
++		if (ret)
++			goto out;
+ 		memcpy(iinfo->i_ext.i_data,
+ 		       bh->b_data + sizeof(struct unallocSpaceEntry),
+ 		       inode->i_sb->s_blocksize -
+ 					sizeof(struct unallocSpaceEntry));
+-		return;
++		return 0;
+ 	}
+ 
++	ret = -EIO;
+ 	read_lock(&sbi->s_cred_lock);
+ 	i_uid_write(inode, le32_to_cpu(fe->uid));
+ 	if (!uid_valid(inode->i_uid) ||
+@@ -1496,6 +1483,20 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+ 		iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint);
+ 	}
+ 
++	/* Sanity checks for files in ICB so that we don't get confused later */
++	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
++		/*
++		 * For file in ICB data is stored in allocation descriptor
++		 * so sizes should match
++		 */
++		if (iinfo->i_lenAlloc != inode->i_size)
++			goto out;
++		/* File in ICB has to fit in there... */
++		if (inode->i_size > inode->i_sb->s_blocksize -
++					udf_file_entry_alloc_offset(inode))
++			goto out;
++	}
++
+ 	switch (fe->icbTag.fileType) {
+ 	case ICBTAG_FILE_TYPE_DIRECTORY:
+ 		inode->i_op = &udf_dir_inode_operations;
+@@ -1544,8 +1545,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+ 	default:
+ 		udf_err(inode->i_sb, "(ino %ld) failed unknown file type=%d\n",
+ 			inode->i_ino, fe->icbTag.fileType);
+-		make_bad_inode(inode);
+-		return;
++		goto out;
+ 	}
+ 	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
+ 		struct deviceSpec *dsea =
+@@ -1556,8 +1556,12 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
+ 				      le32_to_cpu(dsea->minorDeviceIdent)));
+ 			/* Developer ID ??? */
+ 		} else
+-			make_bad_inode(inode);
++			goto out;
+ 	}
++	ret = 0;
++out:
++	brelse(bh);
++	return ret;
+ }
+ 
+ static int udf_alloc_i_data(struct inode *inode, size_t size)
+@@ -1671,7 +1675,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
+ 		     FE_PERM_U_DELETE | FE_PERM_U_CHATTR));
+ 	fe->permissions = cpu_to_le32(udfperms);
+ 
+-	if (S_ISDIR(inode->i_mode))
++	if (S_ISDIR(inode->i_mode) && inode->i_nlink > 0)
+ 		fe->fileLinkCount = cpu_to_le16(inode->i_nlink - 1);
+ 	else
+ 		fe->fileLinkCount = cpu_to_le16(inode->i_nlink);
+@@ -1837,32 +1841,23 @@ struct inode *udf_iget(struct super_block *sb, struct kernel_lb_addr *ino)
+ {
+ 	unsigned long block = udf_get_lb_pblock(sb, ino, 0);
+ 	struct inode *inode = iget_locked(sb, block);
++	int err;
+ 
+ 	if (!inode)
+-		return NULL;
++		return ERR_PTR(-ENOMEM);
+ 
+-	if (inode->i_state & I_NEW) {
+-		memcpy(&UDF_I(inode)->i_location, ino, sizeof(struct kernel_lb_addr));
+-		__udf_read_inode(inode);
+-		unlock_new_inode(inode);
+-	}
+-
+-	if (is_bad_inode(inode))
+-		goto out_iput;
++	if (!(inode->i_state & I_NEW))
++		return inode;
+ 
+-	if (ino->logicalBlockNum >= UDF_SB(sb)->
+-			s_partmaps[ino->partitionReferenceNum].s_partition_len) {
+-		udf_debug("block=%d, partition=%d out of range\n",
+-			  ino->logicalBlockNum, ino->partitionReferenceNum);
+-		make_bad_inode(inode);
+-		goto out_iput;
++	memcpy(&UDF_I(inode)->i_location, ino, sizeof(struct kernel_lb_addr));
++	err = udf_read_inode(inode);
++	if (err < 0) {
++		iget_failed(inode);
++		return ERR_PTR(err);
+ 	}
++	unlock_new_inode(inode);
+ 
+ 	return inode;
+-
+- out_iput:
+-	iput(inode);
+-	return NULL;
+ }
+ 
+ int udf_add_aext(struct inode *inode, struct extent_position *epos,
+diff --git a/fs/udf/misc.c b/fs/udf/misc.c
+index c175b4d..8f36a16 100644
+--- a/fs/udf/misc.c
++++ b/fs/udf/misc.c
+@@ -289,7 +289,7 @@ void udf_new_tag(char *data, uint16_t ident, uint16_t version, uint16_t snum,
+ 
+ u8 udf_tag_checksum(const struct tag *t)
+ {
+-	u8 *data = (u8 *)t;
++	const u8 *data = (const u8 *)t;
+ 	u8 checksum = 0;
+ 	int i;
+ 	for (i = 0; i < sizeof(struct tag); ++i)
+diff --git a/fs/udf/namei.c b/fs/udf/namei.c
+index 9737cba..e5ae1c3 100644
+--- a/fs/udf/namei.c
++++ b/fs/udf/namei.c
+@@ -233,7 +233,8 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
+ 		if (!lfi)
+ 			continue;
+ 
+-		flen = udf_get_filename(dir->i_sb, nameptr, fname, lfi);
++		flen = udf_get_filename(dir->i_sb, nameptr, lfi, fname,
++					UDF_NAME_LEN);
+ 		if (flen && udf_match(flen, fname, child->len, child->name))
+ 			goto out_ok;
+ 	}
+@@ -270,9 +271,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
+ 						NULL, 0),
+ 		};
+ 		inode = udf_iget(dir->i_sb, lb);
+-		if (!inode) {
+-			return ERR_PTR(-EACCES);
+-		}
++		if (IS_ERR(inode))
++			return inode;
+ 	} else
+ #endif /* UDF_RECOVERY */
+ 
+@@ -285,9 +285,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry,
+ 
+ 		loc = lelb_to_cpu(cfi.icb.extLocation);
+ 		inode = udf_iget(dir->i_sb, &loc);
+-		if (!inode) {
+-			return ERR_PTR(-EACCES);
+-		}
++		if (IS_ERR(inode))
++			return ERR_CAST(inode);
+ 	}
+ 
+ 	return d_splice_alias(inode, dentry);
+@@ -1221,7 +1220,7 @@ static struct dentry *udf_get_parent(struct dentry *child)
+ 	struct udf_fileident_bh fibh;
+ 
+ 	if (!udf_find_entry(child->d_inode, &dotdot, &fibh, &cfi))
+-		goto out_unlock;
++		return ERR_PTR(-EACCES);
+ 
+ 	if (fibh.sbh != fibh.ebh)
+ 		brelse(fibh.ebh);
+@@ -1229,12 +1228,10 @@ static struct dentry *udf_get_parent(struct dentry *child)
+ 
+ 	tloc = lelb_to_cpu(cfi.icb.extLocation);
+ 	inode = udf_iget(child->d_inode->i_sb, &tloc);
+-	if (!inode)
+-		goto out_unlock;
++	if (IS_ERR(inode))
++		return ERR_CAST(inode);
+ 
+ 	return d_obtain_alias(inode);
+-out_unlock:
+-	return ERR_PTR(-EACCES);
+ }
+ 
+ 
+@@ -1251,8 +1248,8 @@ static struct dentry *udf_nfs_get_inode(struct super_block *sb, u32 block,
+ 	loc.partitionReferenceNum = partref;
+ 	inode = udf_iget(sb, &loc);
+ 
+-	if (inode == NULL)
+-		return ERR_PTR(-ENOMEM);
++	if (IS_ERR(inode))
++		return ERR_CAST(inode);
+ 
+ 	if (generation && inode->i_generation != generation) {
+ 		iput(inode);
+diff --git a/fs/udf/super.c b/fs/udf/super.c
+index 3306b9f..a1e0eda 100644
+--- a/fs/udf/super.c
++++ b/fs/udf/super.c
+@@ -956,12 +956,14 @@ struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
+ 
+ 	metadata_fe = udf_iget(sb, &addr);
+ 
+-	if (metadata_fe == NULL)
++	if (IS_ERR(metadata_fe)) {
+ 		udf_warn(sb, "metadata inode efe not found\n");
+-	else if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
++		return metadata_fe;
++	}
++	if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
+ 		udf_warn(sb, "metadata inode efe does not have short allocation descriptors!\n");
+ 		iput(metadata_fe);
+-		metadata_fe = NULL;
++		return ERR_PTR(-EIO);
+ 	}
+ 
+ 	return metadata_fe;
+@@ -973,6 +975,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
+ 	struct udf_part_map *map;
+ 	struct udf_meta_data *mdata;
+ 	struct kernel_lb_addr addr;
++	struct inode *fe;
+ 
+ 	map = &sbi->s_partmaps[partition];
+ 	mdata = &map->s_type_specific.s_metadata;
+@@ -981,22 +984,24 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
+ 	udf_debug("Metadata file location: block = %d part = %d\n",
+ 		  mdata->s_meta_file_loc, map->s_partition_num);
+ 
+-	mdata->s_metadata_fe = udf_find_metadata_inode_efe(sb,
+-		mdata->s_meta_file_loc, map->s_partition_num);
+-
+-	if (mdata->s_metadata_fe == NULL) {
++	fe = udf_find_metadata_inode_efe(sb, mdata->s_meta_file_loc,
++					 map->s_partition_num);
++	if (IS_ERR(fe)) {
+ 		/* mirror file entry */
+ 		udf_debug("Mirror metadata file location: block = %d part = %d\n",
+ 			  mdata->s_mirror_file_loc, map->s_partition_num);
+ 
+-		mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb,
+-			mdata->s_mirror_file_loc, map->s_partition_num);
++		fe = udf_find_metadata_inode_efe(sb, mdata->s_mirror_file_loc,
++						 map->s_partition_num);
+ 
+-		if (mdata->s_mirror_fe == NULL) {
++		if (IS_ERR(fe)) {
+ 			udf_err(sb, "Both metadata and mirror metadata inode efe can not found\n");
+-			return -EIO;
++			return PTR_ERR(fe);
+ 		}
+-	}
++		mdata->s_mirror_fe = fe;
++	} else
++		mdata->s_metadata_fe = fe;
++
+ 
+ 	/*
+ 	 * bitmap file entry
+@@ -1010,15 +1015,16 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
+ 		udf_debug("Bitmap file location: block = %d part = %d\n",
+ 			  addr.logicalBlockNum, addr.partitionReferenceNum);
+ 
+-		mdata->s_bitmap_fe = udf_iget(sb, &addr);
+-		if (mdata->s_bitmap_fe == NULL) {
++		fe = udf_iget(sb, &addr);
++		if (IS_ERR(fe)) {
+ 			if (sb->s_flags & MS_RDONLY)
+ 				udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n");
+ 			else {
+ 				udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n");
+-				return -EIO;
++				return PTR_ERR(fe);
+ 			}
+-		}
++		} else
++			mdata->s_bitmap_fe = fe;
+ 	}
+ 
+ 	udf_debug("udf_load_metadata_files Ok\n");
+@@ -1106,13 +1112,15 @@ static int udf_fill_partdesc_info(struct super_block *sb,
+ 				phd->unallocSpaceTable.extPosition),
+ 			.partitionReferenceNum = p_index,
+ 		};
++		struct inode *inode;
+ 
+-		map->s_uspace.s_table = udf_iget(sb, &loc);
+-		if (!map->s_uspace.s_table) {
++		inode = udf_iget(sb, &loc);
++		if (IS_ERR(inode)) {
+ 			udf_debug("cannot load unallocSpaceTable (part %d)\n",
+ 				  p_index);
+-			return -EIO;
++			return PTR_ERR(inode);
+ 		}
++		map->s_uspace.s_table = inode;
+ 		map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
+ 		udf_debug("unallocSpaceTable (part %d) @ %ld\n",
+ 			  p_index, map->s_uspace.s_table->i_ino);
+@@ -1139,14 +1147,15 @@ static int udf_fill_partdesc_info(struct super_block *sb,
+ 				phd->freedSpaceTable.extPosition),
+ 			.partitionReferenceNum = p_index,
+ 		};
++		struct inode *inode;
+ 
+-		map->s_fspace.s_table = udf_iget(sb, &loc);
+-		if (!map->s_fspace.s_table) {
++		inode = udf_iget(sb, &loc);
++		if (IS_ERR(inode)) {
+ 			udf_debug("cannot load freedSpaceTable (part %d)\n",
+ 				  p_index);
+-			return -EIO;
++			return PTR_ERR(inode);
+ 		}
+-
++		map->s_fspace.s_table = inode;
+ 		map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
+ 		udf_debug("freedSpaceTable (part %d) @ %ld\n",
+ 			  p_index, map->s_fspace.s_table->i_ino);
+@@ -1173,6 +1182,7 @@ static void udf_find_vat_block(struct super_block *sb, int p_index,
+ 	struct udf_part_map *map = &sbi->s_partmaps[p_index];
+ 	sector_t vat_block;
+ 	struct kernel_lb_addr ino;
++	struct inode *inode;
+ 
+ 	/*
+ 	 * VAT file entry is in the last recorded block. Some broken disks have
+@@ -1181,10 +1191,13 @@ static void udf_find_vat_block(struct super_block *sb, int p_index,
+ 	ino.partitionReferenceNum = type1_index;
+ 	for (vat_block = start_block;
+ 	     vat_block >= map->s_partition_root &&
+-	     vat_block >= start_block - 3 &&
+-	     !sbi->s_vat_inode; vat_block--) {
++	     vat_block >= start_block - 3; vat_block--) {
+ 		ino.logicalBlockNum = vat_block - map->s_partition_root;
+-		sbi->s_vat_inode = udf_iget(sb, &ino);
++		inode = udf_iget(sb, &ino);
++		if (!IS_ERR(inode)) {
++			sbi->s_vat_inode = inode;
++			break;
++		}
+ 	}
+ }
+ 
+@@ -2200,10 +2213,10 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
+ 	/* assign inodes by physical block number */
+ 	/* perhaps it's not extensible enough, but for now ... */
+ 	inode = udf_iget(sb, &rootdir);
+-	if (!inode) {
++	if (IS_ERR(inode)) {
+ 		udf_err(sb, "Error in udf_iget, block=%d, partition=%d\n",
+ 		       rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
+-		ret = -EIO;
++		ret = PTR_ERR(inode);
+ 		goto error_out;
+ 	}
+ 
+diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
+index d89f324..0422b7b 100644
+--- a/fs/udf/symlink.c
++++ b/fs/udf/symlink.c
+@@ -30,49 +30,73 @@
+ #include <linux/buffer_head.h>
+ #include "udf_i.h"
+ 
+-static void udf_pc_to_char(struct super_block *sb, unsigned char *from,
+-			   int fromlen, unsigned char *to)
++static int udf_pc_to_char(struct super_block *sb, unsigned char *from,
++			  int fromlen, unsigned char *to, int tolen)
+ {
+ 	struct pathComponent *pc;
+ 	int elen = 0;
++	int comp_len;
+ 	unsigned char *p = to;
+ 
++	/* Reserve one byte for terminating \0 */
++	tolen--;
+ 	while (elen < fromlen) {
+ 		pc = (struct pathComponent *)(from + elen);
++		elen += sizeof(struct pathComponent);
+ 		switch (pc->componentType) {
+ 		case 1:
+ 			/*
+ 			 * Symlink points to some place which should be agreed
+  			 * upon between originator and receiver of the media. Ignore.
+ 			 */
+-			if (pc->lengthComponentIdent > 0)
++			if (pc->lengthComponentIdent > 0) {
++				elen += pc->lengthComponentIdent;
+ 				break;
++			}
+ 			/* Fall through */
+ 		case 2:
++			if (tolen == 0)
++				return -ENAMETOOLONG;
+ 			p = to;
+ 			*p++ = '/';
++			tolen--;
+ 			break;
+ 		case 3:
++			if (tolen < 3)
++				return -ENAMETOOLONG;
+ 			memcpy(p, "../", 3);
+ 			p += 3;
++			tolen -= 3;
+ 			break;
+ 		case 4:
++			if (tolen < 2)
++				return -ENAMETOOLONG;
+ 			memcpy(p, "./", 2);
+ 			p += 2;
++			tolen -= 2;
+ 			/* that would be . - just ignore */
+ 			break;
+ 		case 5:
+-			p += udf_get_filename(sb, pc->componentIdent, p,
+-					      pc->lengthComponentIdent);
++			elen += pc->lengthComponentIdent;
++			if (elen > fromlen)
++				return -EIO;
++			comp_len = udf_get_filename(sb, pc->componentIdent,
++						    pc->lengthComponentIdent,
++						    p, tolen);
++			p += comp_len;
++			tolen -= comp_len;
++			if (tolen == 0)
++				return -ENAMETOOLONG;
+ 			*p++ = '/';
++			tolen--;
+ 			break;
+ 		}
+-		elen += sizeof(struct pathComponent) + pc->lengthComponentIdent;
+ 	}
+ 	if (p > to + 1)
+ 		p[-1] = '\0';
+ 	else
+ 		p[0] = '\0';
++	return 0;
+ }
+ 
+ static int udf_symlink_filler(struct file *file, struct page *page)
+@@ -108,8 +132,10 @@ static int udf_symlink_filler(struct file *file, struct page *page)
+ 		symlink = bh->b_data;
+ 	}
+ 
+-	udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p);
++	err = udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p, PAGE_SIZE);
+ 	brelse(bh);
++	if (err)
++		goto out_unlock_inode;
+ 
+ 	up_read(&iinfo->i_data_sem);
+ 	SetPageUptodate(page);
+diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
+index be7dabb..6b10c98 100644
+--- a/fs/udf/udfdecl.h
++++ b/fs/udf/udfdecl.h
+@@ -143,7 +143,6 @@ extern int udf_expand_file_adinicb(struct inode *);
+ extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
+ extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
+ extern int udf_setsize(struct inode *, loff_t);
+-extern void udf_read_inode(struct inode *);
+ extern void udf_evict_inode(struct inode *);
+ extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
+ extern long udf_block_map(struct inode *, sector_t);
+@@ -201,7 +200,8 @@ udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
+ }
+ 
+ /* unicode.c */
+-extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
++extern int udf_get_filename(struct super_block *, uint8_t *, int, uint8_t *,
++			    int);
+ extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
+ 			    int);
+ extern int udf_build_ustr(struct ustr *, dstring *, int);
+diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
+index 44b815e..d29c06f 100644
+--- a/fs/udf/unicode.c
++++ b/fs/udf/unicode.c
+@@ -28,7 +28,8 @@
+ 
+ #include "udf_sb.h"
+ 
+-static int udf_translate_to_linux(uint8_t *, uint8_t *, int, uint8_t *, int);
++static int udf_translate_to_linux(uint8_t *, int, uint8_t *, int, uint8_t *,
++				  int);
+ 
+ static int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen)
+ {
+@@ -333,8 +334,8 @@ try_again:
+ 	return u_len + 1;
+ }
+ 
+-int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
+-		     int flen)
++int udf_get_filename(struct super_block *sb, uint8_t *sname, int slen,
++		     uint8_t *dname, int dlen)
+ {
+ 	struct ustr *filename, *unifilename;
+ 	int len = 0;
+@@ -347,7 +348,7 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
+ 	if (!unifilename)
+ 		goto out1;
+ 
+-	if (udf_build_ustr_exact(unifilename, sname, flen))
++	if (udf_build_ustr_exact(unifilename, sname, slen))
+ 		goto out2;
+ 
+ 	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
+@@ -366,7 +367,8 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
+ 	} else
+ 		goto out2;
+ 
+-	len = udf_translate_to_linux(dname, filename->u_name, filename->u_len,
++	len = udf_translate_to_linux(dname, dlen,
++				     filename->u_name, filename->u_len,
+ 				     unifilename->u_name, unifilename->u_len);
+ out2:
+ 	kfree(unifilename);
+@@ -403,10 +405,12 @@ int udf_put_filename(struct super_block *sb, const uint8_t *sname,
+ #define EXT_MARK		'.'
+ #define CRC_MARK		'#'
+ #define EXT_SIZE 		5
++/* Number of chars we need to store generated CRC to make filename unique */
++#define CRC_LEN			5
+ 
+-static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
+-				  int udfLen, uint8_t *fidName,
+-				  int fidNameLen)
++static int udf_translate_to_linux(uint8_t *newName, int newLen,
++				  uint8_t *udfName, int udfLen,
++				  uint8_t *fidName, int fidNameLen)
+ {
+ 	int index, newIndex = 0, needsCRC = 0;
+ 	int extIndex = 0, newExtIndex = 0, hasExt = 0;
+@@ -440,7 +444,7 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
+ 					newExtIndex = newIndex;
+ 				}
+ 			}
+-			if (newIndex < 256)
++			if (newIndex < newLen)
+ 				newName[newIndex++] = curr;
+ 			else
+ 				needsCRC = 1;
+@@ -468,13 +472,13 @@ static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
+ 				}
+ 				ext[localExtIndex++] = curr;
+ 			}
+-			maxFilenameLen = 250 - localExtIndex;
++			maxFilenameLen = newLen - CRC_LEN - localExtIndex;
+ 			if (newIndex > maxFilenameLen)
+ 				newIndex = maxFilenameLen;
+ 			else
+ 				newIndex = newExtIndex;
+-		} else if (newIndex > 250)
+-			newIndex = 250;
++		} else if (newIndex > newLen - CRC_LEN)
++			newIndex = newLen - CRC_LEN;
+ 		newName[newIndex++] = CRC_MARK;
+ 		valueCRC = crc_itu_t(0, fidName, fidNameLen);
+ 		newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
+diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
+index 8d974c4..b82f6ec 100644
+--- a/fs/ufs/swab.h
++++ b/fs/ufs/swab.h
+@@ -22,7 +22,7 @@ enum {
+ 	BYTESEX_BE
+ };
+ 
+-static inline u64
++static inline u64 __intentional_overflow(-1)
+ fs64_to_cpu(struct super_block *sbp, __fs64 n)
+ {
+ 	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
+@@ -40,7 +40,7 @@ cpu_to_fs64(struct super_block *sbp, u64 n)
+ 		return (__force __fs64)cpu_to_be64(n);
+ }
+ 
+-static inline u32
++static inline u32 __intentional_overflow(-1)
+ fs32_to_cpu(struct super_block *sbp, __fs32 n)
+ {
+ 	if (UFS_SB(sbp)->s_bytesex == BYTESEX_LE)
+diff --git a/fs/utimes.c b/fs/utimes.c
+index aa138d6..5f3a811 100644
+--- a/fs/utimes.c
++++ b/fs/utimes.c
+@@ -1,6 +1,7 @@
+ #include <linux/compiler.h>
+ #include <linux/file.h>
+ #include <linux/fs.h>
++#include <linux/security.h>
+ #include <linux/linkage.h>
+ #include <linux/mount.h>
+ #include <linux/namei.h>
+@@ -103,6 +104,12 @@ static int utimes_common(struct path *path, struct timespec *times)
+ 		}
+ 	}
+ retry_deleg:
++
++	if (!gr_acl_handle_utime(path->dentry, path->mnt)) {
++		error = -EACCES;
++		goto mnt_drop_write_and_out;
++	}
++
+ 	mutex_lock(&inode->i_mutex);
+ 	error = notify_change(path->dentry, &newattrs, &delegated_inode);
+ 	mutex_unlock(&inode->i_mutex);
+diff --git a/fs/xattr.c b/fs/xattr.c
+index 3377dff..f394815 100644
+--- a/fs/xattr.c
++++ b/fs/xattr.c
+@@ -227,6 +227,27 @@ int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name,
+ 	return rc;
+ }
+ 
++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
++ssize_t
++pax_getxattr(struct dentry *dentry, void *value, size_t size)
++{
++	struct inode *inode = dentry->d_inode;
++	ssize_t error;
++
++	error = inode_permission(inode, MAY_EXEC);
++	if (error)
++		return error;
++
++	if (inode->i_op->getxattr)
++		error = inode->i_op->getxattr(dentry, XATTR_NAME_PAX_FLAGS, value, size);
++	else
++		error = -EOPNOTSUPP;
++
++	return error;
++}
++EXPORT_SYMBOL(pax_getxattr);
++#endif
++
+ ssize_t
+ vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
+ {
+@@ -319,7 +340,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
+  * Extended attribute SET operations
+  */
+ static long
+-setxattr(struct dentry *d, const char __user *name, const void __user *value,
++setxattr(struct path *path, const char __user *name, const void __user *value,
+ 	 size_t size, int flags)
+ {
+ 	int error;
+@@ -355,7 +376,12 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
+ 			posix_acl_fix_xattr_from_user(kvalue, size);
+ 	}
+ 
+-	error = vfs_setxattr(d, kname, kvalue, size, flags);
++	if (!gr_acl_handle_setxattr(path->dentry, path->mnt)) {
++		error = -EACCES;
++		goto out;
++	}
++
++	error = vfs_setxattr(path->dentry, kname, kvalue, size, flags);
+ out:
+ 	if (vvalue)
+ 		vfree(vvalue);
+@@ -377,7 +403,7 @@ retry:
+ 		return error;
+ 	error = mnt_want_write(path.mnt);
+ 	if (!error) {
+-		error = setxattr(path.dentry, name, value, size, flags);
++		error = setxattr(&path, name, value, size, flags);
+ 		mnt_drop_write(path.mnt);
+ 	}
+ 	path_put(&path);
+@@ -401,7 +427,7 @@ retry:
+ 		return error;
+ 	error = mnt_want_write(path.mnt);
+ 	if (!error) {
+-		error = setxattr(path.dentry, name, value, size, flags);
++		error = setxattr(&path, name, value, size, flags);
+ 		mnt_drop_write(path.mnt);
+ 	}
+ 	path_put(&path);
+@@ -416,16 +442,14 @@ SYSCALL_DEFINE5(fsetxattr, int, fd, const char __user *, name,
+ 		const void __user *,value, size_t, size, int, flags)
+ {
+ 	struct fd f = fdget(fd);
+-	struct dentry *dentry;
+ 	int error = -EBADF;
+ 
+ 	if (!f.file)
+ 		return error;
+-	dentry = f.file->f_path.dentry;
+-	audit_inode(NULL, dentry, 0);
++	audit_inode(NULL, f.file->f_path.dentry, 0);
+ 	error = mnt_want_write_file(f.file);
+ 	if (!error) {
+-		error = setxattr(dentry, name, value, size, flags);
++		error = setxattr(&f.file->f_path, name, value, size, flags);
+ 		mnt_drop_write_file(f.file);
+ 	}
+ 	fdput(f);
+@@ -626,7 +650,7 @@ SYSCALL_DEFINE3(flistxattr, int, fd, char __user *, list, size_t, size)
+  * Extended attribute REMOVE operations
+  */
+ static long
+-removexattr(struct dentry *d, const char __user *name)
++removexattr(struct path *path, const char __user *name)
+ {
+ 	int error;
+ 	char kname[XATTR_NAME_MAX + 1];
+@@ -637,7 +661,10 @@ removexattr(struct dentry *d, const char __user *name)
+ 	if (error < 0)
+ 		return error;
+ 
+-	return vfs_removexattr(d, kname);
++	if (!gr_acl_handle_removexattr(path->dentry, path->mnt))
++		return -EACCES;
++
++	return vfs_removexattr(path->dentry, kname);
+ }
+ 
+ SYSCALL_DEFINE2(removexattr, const char __user *, pathname,
+@@ -652,7 +679,7 @@ retry:
+ 		return error;
+ 	error = mnt_want_write(path.mnt);
+ 	if (!error) {
+-		error = removexattr(path.dentry, name);
++		error = removexattr(&path, name);
+ 		mnt_drop_write(path.mnt);
+ 	}
+ 	path_put(&path);
+@@ -675,7 +702,7 @@ retry:
+ 		return error;
+ 	error = mnt_want_write(path.mnt);
+ 	if (!error) {
+-		error = removexattr(path.dentry, name);
++		error = removexattr(&path, name);
+ 		mnt_drop_write(path.mnt);
+ 	}
+ 	path_put(&path);
+@@ -689,16 +716,16 @@ retry:
+ SYSCALL_DEFINE2(fremovexattr, int, fd, const char __user *, name)
+ {
+ 	struct fd f = fdget(fd);
+-	struct dentry *dentry;
++	struct path *path;
+ 	int error = -EBADF;
+ 
+ 	if (!f.file)
+ 		return error;
+-	dentry = f.file->f_path.dentry;
+-	audit_inode(NULL, dentry, 0);
++	path = &f.file->f_path;
++	audit_inode(NULL, path->dentry, 0);
+ 	error = mnt_want_write_file(f.file);
+ 	if (!error) {
+-		error = removexattr(dentry, name);
++		error = removexattr(path, name);
+ 		mnt_drop_write_file(f.file);
+ 	}
+ 	fdput(f);
+diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
+index 152543c..d80c361 100644
+--- a/fs/xfs/xfs_bmap.c
++++ b/fs/xfs/xfs_bmap.c
+@@ -584,7 +584,7 @@ xfs_bmap_validate_ret(
+ 
+ #else
+ #define xfs_bmap_check_leaf_extents(cur, ip, whichfork)		do { } while (0)
+-#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
++#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)	do { } while (0)
+ #endif /* DEBUG */
+ 
+ /*
+diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
+index aead369..0dfecfd 100644
+--- a/fs/xfs/xfs_dir2_readdir.c
++++ b/fs/xfs/xfs_dir2_readdir.c
+@@ -160,7 +160,12 @@ xfs_dir2_sf_getdents(
+ 		ino = dp->d_ops->sf_get_ino(sfp, sfep);
+ 		filetype = dp->d_ops->sf_get_ftype(sfep);
+ 		ctx->pos = off & 0x7fffffff;
+-		if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
++		if (dp->i_df.if_u1.if_data == dp->i_df.if_u2.if_inline_data) {
++			char name[sfep->namelen];
++			memcpy(name, sfep->name, sfep->namelen);
++			if (!dir_emit(ctx, name, sfep->namelen, ino, xfs_dir3_get_dtype(mp, filetype)))
++				return 0;
++		} else if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
+ 			    xfs_dir3_get_dtype(mp, filetype)))
+ 			return 0;
+ 		sfep = dp->d_ops->sf_nextentry(sfp, sfep);
+diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
+index 9995b80..981f0f4 100644
+--- a/fs/xfs/xfs_error.c
++++ b/fs/xfs/xfs_error.c
+@@ -156,7 +156,7 @@ xfs_error_report(
+ {
+ 	if (level <= xfs_error_level) {
+ 		xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
+-		"Internal error %s at line %d of file %s.  Caller 0x%p",
++		"Internal error %s at line %d of file %s.  Caller 0x%pS",
+ 			    tag, linenum, filename, ra);
+ 
+ 		xfs_stack_trace();
+diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
+index 78e62cc..eec3706 100644
+--- a/fs/xfs/xfs_ioctl.c
++++ b/fs/xfs/xfs_ioctl.c
+@@ -122,7 +122,7 @@ xfs_find_handle(
+ 	}
+ 
+ 	error = -EFAULT;
+-	if (copy_to_user(hreq->ohandle, &handle, hsize) ||
++	if (hsize > sizeof handle || copy_to_user(hreq->ohandle, &handle, hsize) ||
+ 	    copy_to_user(hreq->ohandlen, &hsize, sizeof(__s32)))
+ 		goto out_put;
+ 
+diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
+index f9bb590..af3c389 100644
+--- a/fs/xfs/xfs_linux.h
++++ b/fs/xfs/xfs_linux.h
+@@ -229,7 +229,7 @@ static inline kgid_t xfs_gid_to_kgid(__uint32_t gid)
+  * of the compiler which do not like us using do_div in the middle
+  * of large functions.
+  */
+-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
++static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
+ {
+ 	__u32	mod;
+ 
+@@ -285,7 +285,7 @@ static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
+ 	return 0;
+ }
+ #else
+-static inline __u32 xfs_do_div(void *a, __u32 b, int n)
++static inline __u32 __intentional_overflow(-1) xfs_do_div(void *a, __u32 b, int n)
+ {
+ 	__u32	mod;
+ 
+diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
+new file mode 100644
+index 0000000..49e1a77
+--- /dev/null
++++ b/grsecurity/Kconfig
+@@ -0,0 +1,1184 @@
++#
++# grecurity configuration
++#
++menu "Memory Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_KMEM
++	bool "Deny reading/writing to /dev/kmem, /dev/mem, and /dev/port"
++	default y if GRKERNSEC_CONFIG_AUTO
++	select STRICT_DEVMEM if (X86 || ARM || TILE || S390)
++	help
++	  If you say Y here, /dev/kmem and /dev/mem won't be allowed to
++	  be written to or read from to modify or leak the contents of the running
++	  kernel.  /dev/port will also not be allowed to be opened, writing to
++	  /dev/cpu/*/msr will be prevented, and support for kexec will be removed.
++	  If you have module support disabled, enabling this will close up several
++	  ways that are currently used to insert malicious code into the running
++	  kernel.
++
++	  Even with this feature enabled, we still highly recommend that
++	  you use the RBAC system, as it is still possible for an attacker to
++	  modify the running kernel through other more obscure methods.
++
++	  It is highly recommended that you say Y here if you meet all the
++	  conditions above.
++
++config GRKERNSEC_VM86
++	bool "Restrict VM86 mode"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
++	depends on X86_32
++
++	help
++	  If you say Y here, only processes with CAP_SYS_RAWIO will be able to
++	  make use of a special execution mode on 32bit x86 processors called
++	  Virtual 8086 (VM86) mode.  XFree86 may need vm86 mode for certain
++	  video cards and will still work with this option enabled.  The purpose
++	  of the option is to prevent exploitation of emulation errors in
++	  virtualization of vm86 mode like the one discovered in VMWare in 2009.
++	  Nearly all users should be able to enable this option.
++
++config GRKERNSEC_IO
++	bool "Disable privileged I/O"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
++	depends on X86
++	select RTC_CLASS
++	select RTC_INTF_DEV
++	select RTC_DRV_CMOS
++
++	help
++	  If you say Y here, all ioperm and iopl calls will return an error.
++	  Ioperm and iopl can be used to modify the running kernel.
++	  Unfortunately, some programs need this access to operate properly,
++	  the most notable of which are XFree86 and hwclock.  hwclock can be
++	  remedied by having RTC support in the kernel, so real-time 
++	  clock support is enabled if this option is enabled, to ensure 
++	  that hwclock operates correctly.  If hwclock still does not work,
++	  either update udev or symlink /dev/rtc to /dev/rtc0.
++
++	  If you're using XFree86 or a version of Xorg from 2012 or earlier,
++	  you may not be able to boot into a graphical environment with this
++	  option enabled.  In this case, you should use the RBAC system instead.
++
++config GRKERNSEC_JIT_HARDEN
++	bool "Harden BPF JIT against spray attacks"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on BPF_JIT && X86
++	help
++	  If you say Y here, the native code generated by the kernel's Berkeley
++	  Packet Filter (BPF) JIT engine will be hardened against JIT-spraying
++	  attacks that attempt to fit attacker-beneficial instructions in
++	  32bit immediate fields of JIT-generated native instructions.  The
++	  attacker will generally aim to cause an unintended instruction sequence
++	  of JIT-generated native code to execute by jumping into the middle of
++	  a generated instruction.  This feature effectively randomizes the 32bit
++	  immediate constants present in the generated code to thwart such attacks.
++
++	  If you're using KERNEXEC, it's recommended that you enable this option
++	  to supplement the hardening of the kernel.
++  
++config GRKERNSEC_PERF_HARDEN
++	bool "Disable unprivileged PERF_EVENTS usage by default"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on PERF_EVENTS
++	help
++	  If you say Y here, the range of acceptable values for the
++	  /proc/sys/kernel/perf_event_paranoid sysctl will be expanded to allow and
++	  default to a new value: 3.  When the sysctl is set to this value, no
++	  unprivileged use of the PERF_EVENTS syscall interface will be permitted.
++
++	  Though PERF_EVENTS can be used legitimately for performance monitoring
++	  and low-level application profiling, it is forced on regardless of
++	  configuration, has been at fault for several vulnerabilities, and
++	  creates new opportunities for side channels and other information leaks.
++
++	  This feature puts PERF_EVENTS into a secure default state and permits
++	  the administrator to change out of it temporarily if unprivileged
++	  application profiling is needed.
++
++config GRKERNSEC_RAND_THREADSTACK
++	bool "Insert random gaps between thread stacks"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on PAX_RANDMMAP && !PPC
++	help
++	  If you say Y here, a random-sized gap will be enforced between allocated
++	  thread stacks.  Glibc's NPTL and other threading libraries that
++	  pass MAP_STACK to the kernel for thread stack allocation are supported.
++	  The implementation currently provides 8 bits of entropy for the gap.
++
++	  Many distributions do not compile threaded remote services with the
++	  -fstack-check argument to GCC, causing the variable-sized stack-based
++	  allocator, alloca(), to not probe the stack on allocation.  This
++	  permits an unbounded alloca() to skip over any guard page and potentially
++	  modify another thread's stack reliably.  An enforced random gap
++	  reduces the reliability of such an attack and increases the chance
++	  that such a read/write to another thread's stack instead lands in
++	  an unmapped area, causing a crash and triggering grsecurity's
++	  anti-bruteforcing logic.
++
++config GRKERNSEC_PROC_MEMMAP
++	bool "Harden ASLR against information leaks and entropy reduction"
++	default y if (GRKERNSEC_CONFIG_AUTO || PAX_NOEXEC || PAX_ASLR)
++	depends on PAX_NOEXEC || PAX_ASLR
++	help
++	  If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will
++	  give no information about the addresses of its mappings if
++	  PaX features that rely on random addresses are enabled on the task.
++	  In addition to sanitizing this information and disabling other
++	  dangerous sources of information, this option causes reads of sensitive
++	  /proc/<pid> entries where the file descriptor was opened in a different
++	  task than the one performing the read.  Such attempts are logged.
++	  This option also limits argv/env strings for suid/sgid binaries
++	  to 512KB to prevent a complete exhaustion of the stack entropy provided
++	  by ASLR.  Finally, it places an 8MB stack resource limit on suid/sgid
++	  binaries to prevent alternative mmap layouts from being abused.
++
++	  If you use PaX it is essential that you say Y here as it closes up
++	  several holes that make full ASLR useless locally.
++
++
++config GRKERNSEC_KSTACKOVERFLOW
++	bool "Prevent kernel stack overflows"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on !IA64 && 64BIT
++	help
++	  If you say Y here, the kernel's process stacks will be allocated
++	  with vmalloc instead of the kernel's default allocator.  This
++	  introduces guard pages that in combination with the alloca checking
++	  of the STACKLEAK feature prevents all forms of kernel process stack
++	  overflow abuse.  Note that this is different from kernel stack
++	  buffer overflows.
++
++config GRKERNSEC_BRUTE
++	bool "Deter exploit bruteforcing"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, attempts to bruteforce exploits against forking
++	  daemons such as apache or sshd, as well as against suid/sgid binaries
++	  will be deterred.  When a child of a forking daemon is killed by PaX
++	  or crashes due to an illegal instruction or other suspicious signal,
++	  the parent process will be delayed 30 seconds upon every subsequent
++	  fork until the administrator is able to assess the situation and
++	  restart the daemon.
++	  In the suid/sgid case, the attempt is logged, the user has all their
++	  existing instances of the suid/sgid binary terminated and will
++	  be unable to execute any suid/sgid binaries for 15 minutes.
++
++	  It is recommended that you also enable signal logging in the auditing
++	  section so that logs are generated when a process triggers a suspicious
++	  signal.
++	  If the sysctl option is enabled, a sysctl option with name
++	  "deter_bruteforce" is created.
++
++config GRKERNSEC_MODHARDEN
++	bool "Harden module auto-loading"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on MODULES
++	help
++	  If you say Y here, module auto-loading in response to use of some
++	  feature implemented by an unloaded module will be restricted to
++	  root users.  Enabling this option helps defend against attacks 
++	  by unprivileged users who abuse the auto-loading behavior to 
++	  cause a vulnerable module to load that is then exploited.
++
++	  If this option prevents a legitimate use of auto-loading for a 
++	  non-root user, the administrator can execute modprobe manually 
++	  with the exact name of the module mentioned in the alert log.
++	  Alternatively, the administrator can add the module to the list
++	  of modules loaded at boot by modifying init scripts.
++
++	  Modification of init scripts will most likely be needed on 
++	  Ubuntu servers with encrypted home directory support enabled,
++	  as the first non-root user logging in will cause the ecb(aes),
++	  ecb(aes)-all, cbc(aes), and cbc(aes)-all  modules to be loaded.
++
++config GRKERNSEC_HIDESYM
++	bool "Hide kernel symbols"
++	default y if GRKERNSEC_CONFIG_AUTO
++	select PAX_USERCOPY_SLABS
++	help
++	  If you say Y here, getting information on loaded modules, and
++	  displaying all kernel symbols through a syscall will be restricted
++	  to users with CAP_SYS_MODULE.  For software compatibility reasons,
++	  /proc/kallsyms will be restricted to the root user.  The RBAC
++	  system can hide that entry even from root.
++
++	  This option also prevents leaking of kernel addresses through
++	  several /proc entries.
++
++	  Note that this option is only effective provided the following
++	  conditions are met:
++	  1) The kernel using grsecurity is not precompiled by some distribution
++	  2) You have also enabled GRKERNSEC_DMESG
++	  3) You are using the RBAC system and hiding other files such as your
++	     kernel image and System.map.  Alternatively, enabling this option
++	     causes the permissions on /boot, /lib/modules, and the kernel
++	     source directory to change at compile time to prevent 
++	     reading by non-root users.
++	  If the above conditions are met, this option will aid in providing a
++	  useful protection against local kernel exploitation of overflows
++	  and arbitrary read/write vulnerabilities.
++
++	  It is highly recommended that you enable GRKERNSEC_PERF_HARDEN
++	  in addition to this feature.
++
++config GRKERNSEC_RANDSTRUCT
++	bool "Randomize layout of sensitive kernel structures"
++	default y if GRKERNSEC_CONFIG_AUTO
++	select GRKERNSEC_HIDESYM
++	select MODVERSIONS if MODULES
++	help
++	  If you say Y here, the layouts of a number of sensitive kernel
++	  structures (task, fs, cred, etc) and all structures composed entirely
++	  of function pointers (aka "ops" structs) will be randomized at compile-time.
++	  This can introduce the requirement of an additional infoleak
++	  vulnerability for exploits targeting these structure types.
++
++	  Enabling this feature will introduce some performance impact, slightly
++	  increase memory usage, and prevent the use of forensic tools like
++	  Volatility against the system (unless the kernel source tree isn't
++	  cleaned after kernel installation).
++
++	  The seed used for compilation is located at tools/gcc/randomize_layout_seed.h.
++	  It remains after a make clean to allow for external modules to be compiled
++	  with the existing seed and will be removed by a make mrproper or
++	  make distclean.
++
++          Note that the implementation requires gcc 4.6.4. or newer.  You may need
++	  to install the supporting headers explicitly in addition to the normal
++	  gcc package.
++
++config GRKERNSEC_RANDSTRUCT_PERFORMANCE
++	bool "Use cacheline-aware structure randomization"
++	depends on GRKERNSEC_RANDSTRUCT
++	default y if GRKERNSEC_CONFIG_PRIORITY_PERF
++	help
++	  If you say Y here, the RANDSTRUCT randomization will make a best effort
++	  at restricting randomization to cacheline-sized groups of elements.  It
++	  will further not randomize bitfields in structures.  This reduces the
++	  performance hit of RANDSTRUCT at the cost of weakened randomization.
++
++config GRKERNSEC_KERN_LOCKOUT
++	bool "Active kernel exploit response"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on X86 || ARM || PPC || SPARC
++	help
++	  If you say Y here, when a PaX alert is triggered due to suspicious
++	  activity in the kernel (from KERNEXEC/UDEREF/USERCOPY)
++	  or an OOPS occurs due to bad memory accesses, instead of just
++	  terminating the offending process (and potentially allowing
++	  a subsequent exploit from the same user), we will take one of two
++	  actions:
++	   If the user was root, we will panic the system
++	   If the user was non-root, we will log the attempt, terminate
++	   all processes owned by the user, then prevent them from creating
++	   any new processes until the system is restarted
++	  This deters repeated kernel exploitation/bruteforcing attempts
++	  and is useful for later forensics.
++
++config GRKERNSEC_OLD_ARM_USERLAND
++	bool "Old ARM userland compatibility"
++	depends on ARM && (CPU_V6 || CPU_V6K || CPU_V7)
++	help
++	  If you say Y here, stubs of executable code to perform such operations
++	  as "compare-exchange" will be placed at fixed locations in the ARM vector
++	  table.  This is unfortunately needed for old ARM userland meant to run
++	  across a wide range of processors.  Without this option enabled,
++	  the get_tls and data memory barrier stubs will be emulated by the kernel,
++	  which is enough for Linaro userlands or other userlands designed for v6
++	  and newer ARM CPUs.  It's recommended that you try without this option enabled
++	  first, and only enable it if your userland does not boot (it will likely fail
++	  at init time).
++
++endmenu
++menu "Role Based Access Control Options"
++depends on GRKERNSEC
++
++config GRKERNSEC_RBAC_DEBUG
++	bool
++
++config GRKERNSEC_NO_RBAC
++	bool "Disable RBAC system"
++	help
++	  If you say Y here, the /dev/grsec device will be removed from the kernel,
++	  preventing the RBAC system from being enabled.  You should only say Y
++	  here if you have no intention of using the RBAC system, so as to prevent
++	  an attacker with root access from misusing the RBAC system to hide files
++	  and processes when loadable module support and /dev/[k]mem have been
++	  locked down.
++
++config GRKERNSEC_ACL_HIDEKERN
++	bool "Hide kernel processes"
++	help
++	  If you say Y here, all kernel threads will be hidden to all
++	  processes but those whose subject has the "view hidden processes"
++	  flag.
++
++config GRKERNSEC_ACL_MAXTRIES
++	int "Maximum tries before password lockout"
++	default 3
++	help
++	  This option enforces the maximum number of times a user can attempt
++	  to authorize themselves with the grsecurity RBAC system before being
++	  denied the ability to attempt authorization again for a specified time.
++	  The lower the number, the harder it will be to brute-force a password.
++
++config GRKERNSEC_ACL_TIMEOUT
++	int "Time to wait after max password tries, in seconds"
++	default 30
++	help
++	  This option specifies the time the user must wait after attempting to
++	  authorize to the RBAC system with the maximum number of invalid
++	  passwords.  The higher the number, the harder it will be to brute-force
++	  a password.
++
++endmenu
++menu "Filesystem Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_PROC
++	bool "Proc restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, the permissions of the /proc filesystem
++	  will be altered to enhance system security and privacy.  You MUST
++  	  choose either a user only restriction or a user and group restriction.
++	  Depending upon the option you choose, you can either restrict users to
++	  see only the processes they themselves run, or choose a group that can
++	  view all processes and files normally restricted to root if you choose
++	  the "restrict to user only" option.  NOTE: If you're running identd or
++	  ntpd as a non-root user, you will have to run it as the group you
++	  specify here.
++
++config GRKERNSEC_PROC_USER
++	bool "Restrict /proc to user only"
++	depends on GRKERNSEC_PROC
++	help
++	  If you say Y here, non-root users will only be able to view their own
++	  processes, and restricts them from viewing network-related information,
++	  and viewing kernel symbol and module information.
++
++config GRKERNSEC_PROC_USERGROUP
++	bool "Allow special group"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER
++	help
++	  If you say Y here, you will be able to select a group that will be
++	  able to view all processes and network-related information.  If you've
++	  enabled GRKERNSEC_HIDESYM, kernel and symbol information may still
++	  remain hidden.  This option is useful if you want to run identd as
++	  a non-root user.  The group you select may also be chosen at boot time
++	  via "grsec_proc_gid=" on the kernel commandline.
++
++config GRKERNSEC_PROC_GID
++	int "GID for special group"
++	depends on GRKERNSEC_PROC_USERGROUP
++	default 1001
++
++config GRKERNSEC_PROC_ADD
++	bool "Additional restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP
++	help
++	  If you say Y here, additional restrictions will be placed on
++	  /proc that keep normal users from viewing device information and 
++	  slabinfo information that could be useful for exploits.
++
++config GRKERNSEC_LINK
++	bool "Linking restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, /tmp race exploits will be prevented, since users
++	  will no longer be able to follow symlinks owned by other users in
++	  world-writable +t directories (e.g. /tmp), unless the owner of the
++	  symlink is the owner of the directory. users will also not be
++	  able to hardlink to files they do not own.  If the sysctl option is
++	  enabled, a sysctl option with name "linking_restrictions" is created.
++
++config GRKERNSEC_SYMLINKOWN
++	bool "Kernel-enforced SymlinksIfOwnerMatch"
++	default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
++	help
++	  Apache's SymlinksIfOwnerMatch option has an inherent race condition
++	  that prevents it from being used as a security feature.  As Apache
++	  verifies the symlink by performing a stat() against the target of
++	  the symlink before it is followed, an attacker can setup a symlink
++	  to point to a same-owned file, then replace the symlink with one
++	  that targets another user's file just after Apache "validates" the
++	  symlink -- a classic TOCTOU race.  If you say Y here, a complete,
++	  race-free replacement for Apache's "SymlinksIfOwnerMatch" option
++	  will be in place for the group you specify. If the sysctl option
++	  is enabled, a sysctl option with name "enforce_symlinksifowner" is
++	  created.
++
++config GRKERNSEC_SYMLINKOWN_GID
++	int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
++	depends on GRKERNSEC_SYMLINKOWN
++	default 1006
++	help
++	  Setting this GID determines what group kernel-enforced
++	  SymlinksIfOwnerMatch will be enabled for.  If the sysctl option
++	  is enabled, a sysctl option with name "symlinkown_gid" is created.
++
++config GRKERNSEC_FIFO
++	bool "FIFO restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, users will not be able to write to FIFOs they don't
++	  own in world-writable +t directories (e.g. /tmp), unless the owner of
++	  the FIFO is the same owner of the directory it's held in.  If the sysctl
++	  option is enabled, a sysctl option with name "fifo_restrictions" is
++	  created.
++
++config GRKERNSEC_SYSFS_RESTRICT
++	bool "Sysfs/debugfs restriction"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER)
++	depends on SYSFS
++	help
++	  If you say Y here, sysfs (the pseudo-filesystem mounted at /sys) and
++	  any filesystem normally mounted under it (e.g. debugfs) will be
++	  mostly accessible only by root.  These filesystems generally provide access
++	  to hardware and debug information that isn't appropriate for unprivileged
++	  users of the system.  Sysfs and debugfs have also become a large source
++	  of new vulnerabilities, ranging from infoleaks to local compromise.
++	  There has been very little oversight with an eye toward security involved
++	  in adding new exporters of information to these filesystems, so their
++	  use is discouraged.
++	  For reasons of compatibility, a few directories have been whitelisted
++	  for access by non-root users:
++	  /sys/fs/selinux
++	  /sys/fs/fuse
++	  /sys/devices/system/cpu
++
++config GRKERNSEC_ROFS
++	bool "Runtime read-only mount protection"
++	depends on SYSCTL
++	help
++	  If you say Y here, a sysctl option with name "romount_protect" will
++	  be created.  By setting this option to 1 at runtime, filesystems
++	  will be protected in the following ways:
++	  * No new writable mounts will be allowed
++	  * Existing read-only mounts won't be able to be remounted read/write
++	  * Write operations will be denied on all block devices
++	  This option acts independently of grsec_lock: once it is set to 1,
++	  it cannot be turned off.  Therefore, please be mindful of the resulting
++	  behavior if this option is enabled in an init script on a read-only
++	  filesystem.
++	  Also be aware that as with other root-focused features, GRKERNSEC_KMEM
++	  and GRKERNSEC_IO should be enabled and module loading disabled via
++	  config or at runtime.
++	  This feature is mainly intended for secure embedded systems.
++	  
++
++config GRKERNSEC_DEVICE_SIDECHANNEL
++	bool "Eliminate stat/notify-based device sidechannels"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, timing analyses on block or character
++	  devices like /dev/ptmx using stat or inotify/dnotify/fanotify
++	  will be thwarted for unprivileged users.  If a process without
++	  CAP_MKNOD stats such a device, the last access and last modify times
++	  will match the device's create time.  No access or modify events
++	  will be triggered through inotify/dnotify/fanotify for such devices.
++	  This feature will prevent attacks that may at a minimum
++	  allow an attacker to determine the administrator's password length.
++
++config GRKERNSEC_CHROOT
++	bool "Chroot jail restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, you will be able to choose several options that will
++	  make breaking out of a chrooted jail much more difficult.  If you
++	  encounter no software incompatibilities with the following options, it
++	  is recommended that you enable each one.
++
++	  Note that the chroot restrictions are not intended to apply to "chroots"
++	  to directories that are simple bind mounts of the global root filesystem.
++	  For several other reasons, a user shouldn't expect any significant
++	  security by performing such a chroot.
++
++config GRKERNSEC_CHROOT_MOUNT
++	bool "Deny mounts"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to
++	  mount or remount filesystems.  If the sysctl option is enabled, a
++	  sysctl option with name "chroot_deny_mount" is created.
++
++config GRKERNSEC_CHROOT_DOUBLE
++	bool "Deny double-chroots"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to chroot
++	  again outside the chroot.  This is a widely used method of breaking
++	  out of a chroot jail and should not be allowed.  If the sysctl 
++	  option is enabled, a sysctl option with name 
++	  "chroot_deny_chroot" is created.
++
++config GRKERNSEC_CHROOT_PIVOT
++	bool "Deny pivot_root in chroot"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to use
++	  a function called pivot_root() that was introduced in Linux 2.3.41.  It
++	  works similar to chroot in that it changes the root filesystem.  This
++	  function could be misused in a chrooted process to attempt to break out
++	  of the chroot, and therefore should not be allowed.  If the sysctl
++	  option is enabled, a sysctl option with name "chroot_deny_pivot" is
++	  created.
++
++config GRKERNSEC_CHROOT_CHDIR
++	bool "Enforce chdir(\"/\") on all chroots"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, the current working directory of all newly-chrooted
++	  applications will be set to the the root directory of the chroot.
++	  The man page on chroot(2) states:
++	  Note that this call does not change  the  current  working
++	  directory,  so  that `.' can be outside the tree rooted at
++	  `/'.  In particular, the  super-user  can  escape  from  a
++	  `chroot jail' by doing `mkdir foo; chroot foo; cd ..'.
++
++	  It is recommended that you say Y here, since it's not known to break
++	  any software.  If the sysctl option is enabled, a sysctl option with
++	  name "chroot_enforce_chdir" is created.
++
++config GRKERNSEC_CHROOT_CHMOD
++	bool "Deny (f)chmod +s"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to chmod
++	  or fchmod files to make them have suid or sgid bits.  This protects
++	  against another published method of breaking a chroot.  If the sysctl
++	  option is enabled, a sysctl option with name "chroot_deny_chmod" is
++	  created.
++
++config GRKERNSEC_CHROOT_FCHDIR
++	bool "Deny fchdir and fhandle out of chroot"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, a well-known method of breaking chroots by fchdir'ing
++	  to a file descriptor of the chrooting process that points to a directory
++	  outside the filesystem will be stopped.  Additionally, this option prevents
++	  use of the recently-created syscall for opening files by a guessable "file
++	  handle" inside a chroot.  If the sysctl option is enabled, a sysctl option
++	  with name "chroot_deny_fchdir" is created.
++
++config GRKERNSEC_CHROOT_MKNOD
++	bool "Deny mknod"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be allowed to
++	  mknod.  The problem with using mknod inside a chroot is that it
++	  would allow an attacker to create a device entry that is the same
++	  as one on the physical root of your system, which could range from
++	  anything from the console device to a device for your harddrive (which
++	  they could then use to wipe the drive or steal data).  It is recommended
++	  that you say Y here, unless you run into software incompatibilities.
++	  If the sysctl option is enabled, a sysctl option with name
++	  "chroot_deny_mknod" is created.
++
++config GRKERNSEC_CHROOT_SHMAT
++	bool "Deny shmat() out of chroot"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to attach
++	  to shared memory segments that were created outside of the chroot jail.
++	  It is recommended that you say Y here.  If the sysctl option is enabled,
++	  a sysctl option with name "chroot_deny_shmat" is created.
++
++config GRKERNSEC_CHROOT_UNIX
++	bool "Deny access to abstract AF_UNIX sockets out of chroot"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to
++	  connect to abstract (meaning not belonging to a filesystem) Unix
++	  domain sockets that were bound outside of a chroot.  It is recommended
++	  that you say Y here.  If the sysctl option is enabled, a sysctl option
++	  with name "chroot_deny_unix" is created.
++
++config GRKERNSEC_CHROOT_FINDTASK
++	bool "Protect outside processes"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to
++	  kill, send signals with fcntl, ptrace, capget, getpgid, setpgid, 
++	  getsid, or view any process outside of the chroot.  If the sysctl
++	  option is enabled, a sysctl option with name "chroot_findtask" is
++	  created.
++
++config GRKERNSEC_CHROOT_NICE
++	bool "Restrict priority changes"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, processes inside a chroot will not be able to raise
++	  the priority of processes in the chroot, or alter the priority of
++	  processes outside the chroot.  This provides more security than simply
++	  removing CAP_SYS_NICE from the process' capability set.  If the
++	  sysctl option is enabled, a sysctl option with name "chroot_restrict_nice"
++	  is created.
++
++config GRKERNSEC_CHROOT_SYSCTL
++	bool "Deny sysctl writes"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, an attacker in a chroot will not be able to
++	  write to sysctl entries, either by sysctl(2) or through a /proc
++	  interface.  It is strongly recommended that you say Y here. If the
++	  sysctl option is enabled, a sysctl option with name
++	  "chroot_deny_sysctl" is created.
++
++config GRKERNSEC_CHROOT_RENAME
++	bool "Deny bad renames"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, an attacker in a chroot will not be able to
++	  abuse the ability to create double chroots to break out of the
++	  chroot by exploiting a race condition between a rename of a directory
++	  within a chroot against an open of a symlink with relative path
++	  components.  This feature will likewise prevent an accomplice outside
++	  a chroot from enabling a user inside the chroot to break out and make
++	  use of their credentials on the global filesystem.  Enabling this
++	  feature is essential to prevent root users from breaking out of a
++	  chroot. If the sysctl option is enabled, a sysctl option with name
++	  "chroot_deny_bad_rename" is created.
++
++config GRKERNSEC_CHROOT_CAPS
++	bool "Capability restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT
++	help
++	  If you say Y here, the capabilities on all processes within a
++	  chroot jail will be lowered to stop module insertion, raw i/o,
++	  system and net admin tasks, rebooting the system, modifying immutable
++	  files, modifying IPC owned by another, and changing the system time.
++	  This is left an option because it can break some apps.  Disable this
++	  if your chrooted apps are having problems performing those kinds of
++	  tasks.  If the sysctl option is enabled, a sysctl option with
++	  name "chroot_caps" is created.
++
++config GRKERNSEC_CHROOT_INITRD
++	bool "Exempt initrd tasks from restrictions"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_CHROOT && BLK_DEV_INITRD
++	help
++	  If you say Y here, tasks started prior to init will be exempted from
++	  grsecurity's chroot restrictions.  This option is mainly meant to
++	  resolve Plymouth's performing privileged operations unnecessarily
++	  in a chroot.
++
++endmenu
++menu "Kernel Auditing"
++depends on GRKERNSEC
++
++config GRKERNSEC_AUDIT_GROUP
++	bool "Single group for auditing"
++	help
++	  If you say Y here, the exec and chdir logging features will only operate
++	  on a group you specify.  This option is recommended if you only want to
++	  watch certain users instead of having a large amount of logs from the
++	  entire system.  If the sysctl option is enabled, a sysctl option with
++	  name "audit_group" is created.
++
++config GRKERNSEC_AUDIT_GID
++	int "GID for auditing"
++	depends on GRKERNSEC_AUDIT_GROUP
++	default 1007
++
++config GRKERNSEC_EXECLOG
++	bool "Exec logging"
++	help
++	  If you say Y here, all execve() calls will be logged (since the
++	  other exec*() calls are frontends to execve(), all execution
++	  will be logged).  Useful for shell-servers that like to keep track
++	  of their users.  If the sysctl option is enabled, a sysctl option with
++	  name "exec_logging" is created.
++	  WARNING: This option when enabled will produce a LOT of logs, especially
++	  on an active system.
++
++config GRKERNSEC_RESLOG
++	bool "Resource logging"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, all attempts to overstep resource limits will
++	  be logged with the resource name, the requested size, and the current
++	  limit.  It is highly recommended that you say Y here.  If the sysctl
++	  option is enabled, a sysctl option with name "resource_logging" is
++	  created.  If the RBAC system is enabled, the sysctl value is ignored.
++
++config GRKERNSEC_CHROOT_EXECLOG
++	bool "Log execs within chroot"
++	help
++	  If you say Y here, all executions inside a chroot jail will be logged
++	  to syslog.  This can cause a large amount of logs if certain
++	  applications (eg. djb's daemontools) are installed on the system, and
++	  is therefore left as an option.  If the sysctl option is enabled, a
++	  sysctl option with name "chroot_execlog" is created.
++
++config GRKERNSEC_AUDIT_PTRACE
++	bool "Ptrace logging"
++	help
++	  If you say Y here, all attempts to attach to a process via ptrace
++	  will be logged.  If the sysctl option is enabled, a sysctl option
++	  with name "audit_ptrace" is created.
++
++config GRKERNSEC_AUDIT_CHDIR
++	bool "Chdir logging"
++	help
++	  If you say Y here, all chdir() calls will be logged.  If the sysctl
++ 	  option is enabled, a sysctl option with name "audit_chdir" is created.
++
++config GRKERNSEC_AUDIT_MOUNT
++	bool "(Un)Mount logging"
++	help
++	  If you say Y here, all mounts and unmounts will be logged.  If the
++	  sysctl option is enabled, a sysctl option with name "audit_mount" is
++	  created.
++
++config GRKERNSEC_SIGNAL
++	bool "Signal logging"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, certain important signals will be logged, such as
++	  SIGSEGV, which will as a result inform you of when a error in a program
++	  occurred, which in some cases could mean a possible exploit attempt.
++	  If the sysctl option is enabled, a sysctl option with name
++	  "signal_logging" is created.
++
++config GRKERNSEC_FORKFAIL
++	bool "Fork failure logging"
++	help
++	  If you say Y here, all failed fork() attempts will be logged.
++	  This could suggest a fork bomb, or someone attempting to overstep
++	  their process limit.  If the sysctl option is enabled, a sysctl option
++	  with name "forkfail_logging" is created.
++
++config GRKERNSEC_TIME
++	bool "Time change logging"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, any changes of the system clock will be logged.
++	  If the sysctl option is enabled, a sysctl option with name
++	  "timechange_logging" is created.
++
++config GRKERNSEC_PROC_IPADDR
++	bool "/proc/<pid>/ipaddr support"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, a new entry will be added to each /proc/<pid>
++	  directory that contains the IP address of the person using the task.
++	  The IP is carried across local TCP and AF_UNIX stream sockets.
++	  This information can be useful for IDS/IPSes to perform remote response
++	  to a local attack.  The entry is readable by only the owner of the
++	  process (and root if he has CAP_DAC_OVERRIDE, which can be removed via
++	  the RBAC system), and thus does not create privacy concerns.
++
++config GRKERNSEC_RWXMAP_LOG
++	bool 'Denied RWX mmap/mprotect logging'
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on PAX_MPROTECT && !PAX_EMUPLT && !PAX_EMUSIGRT
++	help
++	  If you say Y here, calls to mmap() and mprotect() with explicit
++	  usage of PROT_WRITE and PROT_EXEC together will be logged when
++	  denied by the PAX_MPROTECT feature.  This feature will also
++	  log other problematic scenarios that can occur when PAX_MPROTECT
++	  is enabled on a binary, like textrels and PT_GNU_STACK.  If the 
++          sysctl option is enabled, a sysctl option with name "rwxmap_logging"
++	  is created.
++
++endmenu
++
++menu "Executable Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_DMESG
++	bool "Dmesg(8) restriction"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, non-root users will not be able to use dmesg(8)
++	  to view the contents of the kernel's circular log buffer.
++	  The kernel's log buffer often contains kernel addresses and other
++	  identifying information useful to an attacker in fingerprinting a
++	  system for a targeted exploit.
++	  If the sysctl option is enabled, a sysctl option with name "dmesg" is
++	  created.
++
++config GRKERNSEC_HARDEN_PTRACE
++	bool "Deter ptrace-based process snooping"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, TTY sniffers and other malicious monitoring
++	  programs implemented through ptrace will be defeated.  If you
++	  have been using the RBAC system, this option has already been
++	  enabled for several years for all users, with the ability to make
++	  fine-grained exceptions.
++
++	  This option only affects the ability of non-root users to ptrace
++	  processes that are not a descendent of the ptracing process.
++	  This means that strace ./binary and gdb ./binary will still work,
++	  but attaching to arbitrary processes will not.  If the sysctl
++	  option is enabled, a sysctl option with name "harden_ptrace" is
++	  created.
++
++config GRKERNSEC_PTRACE_READEXEC
++	bool "Require read access to ptrace sensitive binaries"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, unprivileged users will not be able to ptrace unreadable
++	  binaries.  This option is useful in environments that
++	  remove the read bits (e.g. file mode 4711) from suid binaries to
++	  prevent infoleaking of their contents.  This option adds
++	  consistency to the use of that file mode, as the binary could normally
++	  be read out when run without privileges while ptracing.
++
++	  If the sysctl option is enabled, a sysctl option with name "ptrace_readexec"
++	  is created.
++
++config GRKERNSEC_SETXID
++	bool "Enforce consistent multithreaded privileges"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on (X86 || SPARC64 || PPC || ARM || MIPS)
++	help
++	  If you say Y here, a change from a root uid to a non-root uid
++	  in a multithreaded application will cause the resulting uids,
++	  gids, supplementary groups, and capabilities in that thread
++	  to be propagated to the other threads of the process.  In most
++	  cases this is unnecessary, as glibc will emulate this behavior
++	  on behalf of the application.  Other libcs do not act in the
++	  same way, allowing the other threads of the process to continue
++	  running with root privileges.  If the sysctl option is enabled,
++	  a sysctl option with name "consistent_setxid" is created.
++
++config GRKERNSEC_HARDEN_IPC
++	bool "Disallow access to overly-permissive IPC objects"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on SYSVIPC
++	help
++	  If you say Y here, access to overly-permissive IPC objects (shared
++	  memory, message queues, and semaphores) will be denied for processes
++	  given the following criteria beyond normal permission checks:
++	  1) If the IPC object is world-accessible and the euid doesn't match
++	     that of the creator or current uid for the IPC object
++	  2) If the IPC object is group-accessible and the egid doesn't
++	     match that of the creator or current gid for the IPC object
++	  It's a common error to grant too much permission to these objects,
++	  with impact ranging from denial of service and information leaking to
++	  privilege escalation.  This feature was developed in response to
++	  research by Tim Brown:
++	  http://labs.portcullis.co.uk/whitepapers/memory-squatting-attacks-on-system-v-shared-memory/
++	  who found hundreds of such insecure usages.  Processes with
++	  CAP_IPC_OWNER are still permitted to access these IPC objects.
++	  If the sysctl option is enabled, a sysctl option with name
++	  "harden_ipc" is created.
++
++config GRKERNSEC_TPE
++	bool "Trusted Path Execution (TPE)"
++	default y if GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_SERVER
++	help
++	  If you say Y here, you will be able to choose a gid to add to the
++	  supplementary groups of users you want to mark as "untrusted."
++	  These users will not be able to execute any files that are not in
++	  root-owned directories writable only by root.  If the sysctl option
++	  is enabled, a sysctl option with name "tpe" is created.
++
++config GRKERNSEC_TPE_ALL
++	bool "Partially restrict all non-root users"
++	depends on GRKERNSEC_TPE
++	help
++	  If you say Y here, all non-root users will be covered under
++	  a weaker TPE restriction.  This is separate from, and in addition to,
++	  the main TPE options that you have selected elsewhere.  Thus, if a
++	  "trusted" GID is chosen, this restriction applies to even that GID.
++	  Under this restriction, all non-root users will only be allowed to
++	  execute files in directories they own that are not group or
++	  world-writable, or in directories owned by root and writable only by
++	  root.  If the sysctl option is enabled, a sysctl option with name
++	  "tpe_restrict_all" is created.
++
++config GRKERNSEC_TPE_INVERT
++	bool "Invert GID option"
++	depends on GRKERNSEC_TPE
++	help
++	  If you say Y here, the group you specify in the TPE configuration will
++	  decide what group TPE restrictions will be *disabled* for.  This
++	  option is useful if you want TPE restrictions to be applied to most
++	  users on the system.  If the sysctl option is enabled, a sysctl option
++	  with name "tpe_invert" is created.  Unlike other sysctl options, this
++	  entry will default to on for backward-compatibility.
++
++config GRKERNSEC_TPE_GID
++	int
++	default GRKERNSEC_TPE_UNTRUSTED_GID if (GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT)
++	default GRKERNSEC_TPE_TRUSTED_GID if (GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT)
++	
++config GRKERNSEC_TPE_UNTRUSTED_GID
++	int "GID for TPE-untrusted users"
++	depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
++	default 1005
++	help
++	  Setting this GID determines what group TPE restrictions will be
++	  *enabled* for.  If the sysctl option is enabled, a sysctl option
++	  with name "tpe_gid" is created.
++
++config GRKERNSEC_TPE_TRUSTED_GID
++	int "GID for TPE-trusted users"
++	depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
++	default 1005
++	help
++	  Setting this GID determines what group TPE restrictions will be
++	  *disabled* for.  If the sysctl option is enabled, a sysctl option
++	  with name "tpe_gid" is created.
++
++endmenu
++menu "Network Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_BLACKHOLE
++	bool "TCP/UDP blackhole and LAST_ACK DoS prevention"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on NET
++	help
++	  If you say Y here, neither TCP resets nor ICMP
++	  destination-unreachable packets will be sent in response to packets
++	  sent to ports for which no associated listening process exists.
++	  It will also prevent the sending of ICMP protocol unreachable packets
++	  in response to packets with unknown protocols.
++	  This feature supports both IPV4 and IPV6 and exempts the 
++	  loopback interface from blackholing.  Enabling this feature 
++	  makes a host more resilient to DoS attacks and reduces network
++	  visibility against scanners.
++
++	  The blackhole feature as-implemented is equivalent to the FreeBSD
++	  blackhole feature, as it prevents RST responses to all packets, not
++	  just SYNs.  Under most application behavior this causes no
++	  problems, but applications (like haproxy) may not close certain
++	  connections in a way that cleanly terminates them on the remote
++	  end, leaving the remote host in LAST_ACK state.  Because of this
++	  side-effect and to prevent intentional LAST_ACK DoSes, this
++	  feature also adds automatic mitigation against such attacks.
++	  The mitigation drastically reduces the amount of time a socket
++	  can spend in LAST_ACK state.  If you're using haproxy and not
++	  all servers it connects to have this option enabled, consider
++	  disabling this feature on the haproxy host.
++
++	  If the sysctl option is enabled, two sysctl options with names
++	  "ip_blackhole" and "lastack_retries" will be created.
++	  While "ip_blackhole" takes the standard zero/non-zero on/off
++	  toggle, "lastack_retries" uses the same kinds of values as
++	  "tcp_retries1" and "tcp_retries2".  The default value of 4
++	  prevents a socket from lasting more than 45 seconds in LAST_ACK
++	  state.
++
++config GRKERNSEC_NO_SIMULT_CONNECT
++	bool "Disable TCP Simultaneous Connect"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on NET
++	help
++	  If you say Y here, a feature by Willy Tarreau will be enabled that
++	  removes a weakness in Linux's strict implementation of TCP that
++	  allows two clients to connect to each other without either entering
++	  a listening state.  The weakness allows an attacker to easily prevent
++	  a client from connecting to a known server provided the source port
++	  for the connection is guessed correctly.
++
++	  As the weakness could be used to prevent an antivirus or IPS from
++	  fetching updates, or prevent an SSL gateway from fetching a CRL,
++	  it should be eliminated by enabling this option.  Though Linux is
++	  one of few operating systems supporting simultaneous connect, it
++	  has no legitimate use in practice and is rarely supported by firewalls.
++	
++config GRKERNSEC_SOCKET
++	bool "Socket restrictions"
++	depends on NET
++	help
++	  If you say Y here, you will be able to choose from several options.
++	  If you assign a GID on your system and add it to the supplementary
++	  groups of users you want to restrict socket access to, this patch
++	  will perform up to three things, based on the option(s) you choose.
++
++config GRKERNSEC_SOCKET_ALL
++	bool "Deny any sockets to group"
++	depends on GRKERNSEC_SOCKET
++	help
++	  If you say Y here, you will be able to choose a GID of whose users will
++	  be unable to connect to other hosts from your machine or run server
++	  applications from your machine.  If the sysctl option is enabled, a
++	  sysctl option with name "socket_all" is created.
++
++config GRKERNSEC_SOCKET_ALL_GID
++	int "GID to deny all sockets for"
++	depends on GRKERNSEC_SOCKET_ALL
++	default 1004
++	help
++	  Here you can choose the GID to disable socket access for. Remember to
++	  add the users you want socket access disabled for to the GID
++	  specified here.  If the sysctl option is enabled, a sysctl option
++	  with name "socket_all_gid" is created.
++
++config GRKERNSEC_SOCKET_CLIENT
++	bool "Deny client sockets to group"
++	depends on GRKERNSEC_SOCKET
++	help
++	  If you say Y here, you will be able to choose a GID of whose users will
++	  be unable to connect to other hosts from your machine, but will be
++	  able to run servers.  If this option is enabled, all users in the group
++	  you specify will have to use passive mode when initiating ftp transfers
++	  from the shell on your machine.  If the sysctl option is enabled, a
++	  sysctl option with name "socket_client" is created.
++
++config GRKERNSEC_SOCKET_CLIENT_GID
++	int "GID to deny client sockets for"
++	depends on GRKERNSEC_SOCKET_CLIENT
++	default 1003
++	help
++	  Here you can choose the GID to disable client socket access for.
++	  Remember to add the users you want client socket access disabled for to
++	  the GID specified here.  If the sysctl option is enabled, a sysctl
++	  option with name "socket_client_gid" is created.
++
++config GRKERNSEC_SOCKET_SERVER
++	bool "Deny server sockets to group"
++	depends on GRKERNSEC_SOCKET
++	help
++	  If you say Y here, you will be able to choose a GID of whose users will
++	  be unable to run server applications from your machine.  If the sysctl
++	  option is enabled, a sysctl option with name "socket_server" is created.
++
++config GRKERNSEC_SOCKET_SERVER_GID
++	int "GID to deny server sockets for"
++	depends on GRKERNSEC_SOCKET_SERVER
++	default 1002
++	help
++	  Here you can choose the GID to disable server socket access for.
++	  Remember to add the users you want server socket access disabled for to
++	  the GID specified here.  If the sysctl option is enabled, a sysctl
++	  option with name "socket_server_gid" is created.
++
++endmenu
++
++menu "Physical Protections"
++depends on GRKERNSEC
++
++config GRKERNSEC_DENYUSB
++	bool "Deny new USB connections after toggle"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on SYSCTL && USB_SUPPORT
++	help
++	  If you say Y here, a new sysctl option with name "deny_new_usb"
++	  will be created.  Setting its value to 1 will prevent any new
++	  USB devices from being recognized by the OS.  Any attempted USB
++	  device insertion will be logged.  This option is intended to be
++	  used against custom USB devices designed to exploit vulnerabilities
++	  in various USB device drivers.
++
++	  For greatest effectiveness, this sysctl should be set after any
++	  relevant init scripts.  This option is safe to enable in distros
++	  as each user can choose whether or not to toggle the sysctl.
++
++config GRKERNSEC_DENYUSB_FORCE
++	bool "Reject all USB devices not connected at boot"
++	select USB
++	depends on GRKERNSEC_DENYUSB
++	help
++	  If you say Y here, a variant of GRKERNSEC_DENYUSB will be enabled
++	  that doesn't involve a sysctl entry.  This option should only be
++	  enabled if you're sure you want to deny all new USB connections
++	  at runtime and don't want to modify init scripts.  This should not
++	  be enabled by distros.  It forces the core USB code to be built
++	  into the kernel image so that all devices connected at boot time
++	  can be recognized and new USB device connections can be prevented
++	  prior to init running.
++
++endmenu
++
++menu "Sysctl Support"
++depends on GRKERNSEC && SYSCTL
++
++config GRKERNSEC_SYSCTL
++	bool "Sysctl support"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  If you say Y here, you will be able to change the options that
++	  grsecurity runs with at bootup, without having to recompile your
++	  kernel.  You can echo values to files in /proc/sys/kernel/grsecurity
++	  to enable (1) or disable (0) various features.  All the sysctl entries
++	  are mutable until the "grsec_lock" entry is set to a non-zero value.
++	  All features enabled in the kernel configuration are disabled at boot
++	  if you do not say Y to the "Turn on features by default" option.
++	  All options should be set at startup, and the grsec_lock entry should
++	  be set to a non-zero value after all the options are set.
++	  *THIS IS EXTREMELY IMPORTANT*
++
++config GRKERNSEC_SYSCTL_DISTRO
++	bool "Extra sysctl support for distro makers (READ HELP)"
++	depends on GRKERNSEC_SYSCTL && GRKERNSEC_IO
++	help
++	  If you say Y here, additional sysctl options will be created
++	  for features that affect processes running as root.  Therefore,
++	  it is critical when using this option that the grsec_lock entry be
++	  enabled after boot.  Only distros with prebuilt kernel packages
++	  with this option enabled that can ensure grsec_lock is enabled
++	  after boot should use this option.
++	  *Failure to set grsec_lock after boot makes all grsec features
++	  this option covers useless*
++
++	  Currently this option creates the following sysctl entries:
++	  "Disable Privileged I/O": "disable_priv_io"	
++
++config GRKERNSEC_SYSCTL_ON
++	bool "Turn on features by default"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC_SYSCTL
++	help
++	  If you say Y here, instead of having all features enabled in the
++	  kernel configuration disabled at boot time, the features will be
++	  enabled at boot time.  It is recommended you say Y here unless
++	  there is some reason you would want all sysctl-tunable features to
++	  be disabled by default.  As mentioned elsewhere, it is important
++	  to enable the grsec_lock entry once you have finished modifying
++	  the sysctl entries.
++
++endmenu
++menu "Logging Options"
++depends on GRKERNSEC
++
++config GRKERNSEC_FLOODTIME
++	int "Seconds in between log messages (minimum)"
++	default 10
++	help
++	  This option allows you to enforce the number of seconds between
++	  grsecurity log messages.  The default should be suitable for most
++	  people, however, if you choose to change it, choose a value small enough
++	  to allow informative logs to be produced, but large enough to
++	  prevent flooding.
++
++	  Setting both this value and GRKERNSEC_FLOODBURST to 0 will disable
++	  any rate limiting on grsecurity log messages.
++
++config GRKERNSEC_FLOODBURST
++	int "Number of messages in a burst (maximum)"
++	default 6
++	help
++	  This option allows you to choose the maximum number of messages allowed
++	  within the flood time interval you chose in a separate option.  The
++	  default should be suitable for most people, however if you find that
++	  many of your logs are being interpreted as flooding, you may want to
++	  raise this value.
++
++	  Setting both this value and GRKERNSEC_FLOODTIME to 0 will disable
++	  any rate limiting on grsecurity log messages.
++
++endmenu
+diff --git a/grsecurity/Makefile b/grsecurity/Makefile
+new file mode 100644
+index 0000000..30ababb
+--- /dev/null
++++ b/grsecurity/Makefile
+@@ -0,0 +1,54 @@
++# grsecurity – access control and security hardening for Linux
++# All code in this directory and various hooks located throughout the Linux kernel are
++# Copyright (C) 2001-2014 Bradley Spengler, Open Source Security, Inc.
++# http://www.grsecurity.net spender@grsecurity.net
++#
++# This program is free software; you can redistribute it and/or
++# modify it under the terms of the GNU General Public License version 2
++# as published by the Free Software Foundation.
++#
++# This program is distributed in the hope that it will be useful,
++# but WITHOUT ANY WARRANTY; without even the implied warranty of
++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++# GNU General Public License for more details.
++#
++# You should have received a copy of the GNU General Public License
++# along with this program; if not, write to the Free Software
++# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
++
++KBUILD_CFLAGS += -Werror
++
++obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \
++	grsec_mount.o grsec_sig.o grsec_sysctl.o \
++	grsec_time.o grsec_tpe.o grsec_link.o grsec_pax.o grsec_ptrace.o \
++	grsec_usb.o grsec_ipc.o grsec_proc.o
++
++obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_segv.o \
++	gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \
++	gracl_learn.o grsec_log.o gracl_policy.o
++ifdef CONFIG_COMPAT
++obj-$(CONFIG_GRKERNSEC) += gracl_compat.o
++endif
++
++obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o
++
++ifdef CONFIG_NET
++obj-y += grsec_sock.o
++obj-$(CONFIG_GRKERNSEC) += gracl_ip.o
++endif
++
++ifndef CONFIG_GRKERNSEC
++obj-y += grsec_disabled.o
++endif
++
++ifdef CONFIG_GRKERNSEC_HIDESYM
++extra-y := grsec_hidesym.o
++$(obj)/grsec_hidesym.o:
++	@-chmod -f 500 /boot
++	@-chmod -f 500 /lib/modules
++	@-chmod -f 500 /lib64/modules
++	@-chmod -f 500 /lib32/modules
++	@-chmod -f 700 .
++	@-chmod -f 700 $(objtree)
++	@echo '  grsec: protected kernel image paths'
++endif
+diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
+new file mode 100644
+index 0000000..d03be1d
+--- /dev/null
++++ b/grsecurity/gracl.c
+@@ -0,0 +1,2725 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/namei.h>
++#include <linux/mount.h>
++#include <linux/tty.h>
++#include <linux/proc_fs.h>
++#include <linux/lglock.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/types.h>
++#include <linux/sysctl.h>
++#include <linux/netdevice.h>
++#include <linux/ptrace.h>
++#include <linux/gracl.h>
++#include <linux/gralloc.h>
++#include <linux/security.h>
++#include <linux/grinternal.h>
++#include <linux/pid_namespace.h>
++#include <linux/stop_machine.h>
++#include <linux/fdtable.h>
++#include <linux/percpu.h>
++#include <linux/lglock.h>
++#include <linux/hugetlb.h>
++#include <linux/posix-timers.h>
++#include <linux/prefetch.h>
++#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
++#include <linux/magic.h>
++#include <linux/pagemap.h>
++#include "../fs/btrfs/async-thread.h"
++#include "../fs/btrfs/ctree.h"
++#include "../fs/btrfs/btrfs_inode.h"
++#endif
++#include "../fs/mount.h"
++
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <asm/mman.h>
++
++#define FOR_EACH_ROLE_START(role) \
++	role = running_polstate.role_list; \
++	while (role) {
++
++#define FOR_EACH_ROLE_END(role) \
++		role = role->prev; \
++	}
++
++extern struct path gr_real_root;
++
++static struct gr_policy_state running_polstate;
++struct gr_policy_state *polstate = &running_polstate;
++extern struct gr_alloc_state *current_alloc_state;
++
++extern char *gr_shared_page[4];
++DEFINE_RWLOCK(gr_inode_lock);
++
++static unsigned int gr_status __read_only = GR_STATUS_INIT;
++
++#ifdef CONFIG_NET
++extern struct vfsmount *sock_mnt;
++#endif
++
++extern struct vfsmount *pipe_mnt;
++extern struct vfsmount *shm_mnt;
++
++#ifdef CONFIG_HUGETLBFS
++extern struct vfsmount *hugetlbfs_vfsmount[HUGE_MAX_HSTATE];
++#endif
++
++extern u16 acl_sp_role_value;
++extern struct acl_object_label *fakefs_obj_rw;
++extern struct acl_object_label *fakefs_obj_rwx;
++
++int gr_acl_is_enabled(void)
++{
++	return (gr_status & GR_READY);
++}
++
++void gr_enable_rbac_system(void)
++{
++	pax_open_kernel();
++	gr_status |= GR_READY;
++	pax_close_kernel();
++}
++
++int gr_rbac_disable(void *unused)
++{
++	pax_open_kernel();
++	gr_status &= ~GR_READY;
++	pax_close_kernel();
++
++	return 0;
++}
++
++static inline dev_t __get_dev(const struct dentry *dentry)
++{
++#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
++	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
++		return BTRFS_I(dentry->d_inode)->root->anon_dev;
++	else
++#endif
++		return dentry->d_sb->s_dev;
++}
++
++static inline u64 __get_ino(const struct dentry *dentry)
++{
++#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
++	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
++		return btrfs_ino(dentry->d_inode);
++	else
++#endif
++		return dentry->d_inode->i_ino;
++}
++
++dev_t gr_get_dev_from_dentry(struct dentry *dentry)
++{
++	return __get_dev(dentry);
++}
++
++u64 gr_get_ino_from_dentry(struct dentry *dentry)
++{
++	return __get_ino(dentry);
++}
++
++static char gr_task_roletype_to_char(struct task_struct *task)
++{
++	switch (task->role->roletype &
++		(GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP |
++		 GR_ROLE_SPECIAL)) {
++	case GR_ROLE_DEFAULT:
++		return 'D';
++	case GR_ROLE_USER:
++		return 'U';
++	case GR_ROLE_GROUP:
++		return 'G';
++	case GR_ROLE_SPECIAL:
++		return 'S';
++	}
++
++	return 'X';
++}
++
++char gr_roletype_to_char(void)
++{
++	return gr_task_roletype_to_char(current);
++}
++
++int
++gr_acl_tpe_check(void)
++{
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++	if (current->role->roletype & GR_ROLE_TPE)
++		return 1;
++	else
++		return 0;
++}
++
++int
++gr_handle_rawio(const struct inode *inode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	if (inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR)) &&
++	    grsec_enable_chroot_caps && proc_is_chrooted(current) &&
++	    !capable(CAP_SYS_RAWIO))
++		return 1;
++#endif
++	return 0;
++}
++
++int
++gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb)
++{
++	if (likely(lena != lenb))
++		return 0;
++
++	return !memcmp(a, b, lena);
++}
++
++static int prepend(char **buffer, int *buflen, const char *str, int namelen)
++{
++	*buflen -= namelen;
++	if (*buflen < 0)
++		return -ENAMETOOLONG;
++	*buffer -= namelen;
++	memcpy(*buffer, str, namelen);
++	return 0;
++}
++
++static int prepend_name(char **buffer, int *buflen, struct qstr *name)
++{
++	return prepend(buffer, buflen, name->name, name->len);
++}
++
++static int prepend_path(const struct path *path, struct path *root,
++			char **buffer, int *buflen)
++{
++	struct dentry *dentry = path->dentry;
++	struct vfsmount *vfsmnt = path->mnt;
++	struct mount *mnt = real_mount(vfsmnt);
++	bool slash = false;
++	int error = 0;
++
++	while (dentry != root->dentry || vfsmnt != root->mnt) {
++		struct dentry * parent;
++
++		if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
++			/* Global root? */
++			if (!mnt_has_parent(mnt)) {
++				goto out;
++			}
++			dentry = mnt->mnt_mountpoint;
++			mnt = mnt->mnt_parent;
++			vfsmnt = &mnt->mnt;
++			continue;
++		}
++		parent = dentry->d_parent;
++		prefetch(parent);
++		spin_lock(&dentry->d_lock);
++		error = prepend_name(buffer, buflen, &dentry->d_name);
++		spin_unlock(&dentry->d_lock);
++		if (!error)
++			error = prepend(buffer, buflen, "/", 1);
++		if (error)
++			break;
++
++		slash = true;
++		dentry = parent;
++	}
++
++out:
++	if (!error && !slash)
++		error = prepend(buffer, buflen, "/", 1);
++
++	return error;
++}
++
++/* this must be called with mount_lock and rename_lock held */
++
++static char *__our_d_path(const struct path *path, struct path *root,
++			char *buf, int buflen)
++{
++	char *res = buf + buflen;
++	int error;
++
++	prepend(&res, &buflen, "\0", 1);
++	error = prepend_path(path, root, &res, &buflen);
++	if (error)
++		return ERR_PTR(error);
++
++	return res;
++}
++
++static char *
++gen_full_path(struct path *path, struct path *root, char *buf, int buflen)
++{
++	char *retval;
++
++	retval = __our_d_path(path, root, buf, buflen);
++	if (unlikely(IS_ERR(retval)))
++		retval = strcpy(buf, "<path too long>");
++	else if (unlikely(retval[1] == '/' && retval[2] == '\0'))
++		retval[1] = '\0';
++
++	return retval;
++}
++
++static char *
++__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
++		char *buf, int buflen)
++{
++	struct path path;
++	char *res;
++
++	path.dentry = (struct dentry *)dentry;
++	path.mnt = (struct vfsmount *)vfsmnt;
++
++	/* we can use gr_real_root.dentry, gr_real_root.mnt, because this is only called
++	   by the RBAC system */
++	res = gen_full_path(&path, &gr_real_root, buf, buflen);
++
++	return res;
++}
++
++static char *
++d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt,
++	    char *buf, int buflen)
++{
++	char *res;
++	struct path path;
++	struct path root;
++	struct task_struct *reaper = init_pid_ns.child_reaper;
++
++	path.dentry = (struct dentry *)dentry;
++	path.mnt = (struct vfsmount *)vfsmnt;
++
++	/* we can't use gr_real_root.dentry, gr_real_root.mnt, because they belong only to the RBAC system */
++	get_fs_root(reaper->fs, &root);
++
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++	res = gen_full_path(&path, &root, buf, buflen);
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++
++	path_put(&root);
++	return res;
++}
++
++char *
++gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	char *ret;
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++	ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
++			     PAGE_SIZE);
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++	return ret;
++}
++
++static char *
++gr_to_proc_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	char *ret;
++	char *buf;
++	int buflen;
++
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++	buf = per_cpu_ptr(gr_shared_page[0], smp_processor_id());
++	ret = __d_real_path(dentry, mnt, buf, PAGE_SIZE - 6);
++	buflen = (int)(ret - buf);
++	if (buflen >= 5)
++		prepend(&ret, &buflen, "/proc", 5);
++	else
++		ret = strcpy(buf, "<path too long>");
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++	return ret;
++}
++
++char *
++gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()),
++			     PAGE_SIZE);
++}
++
++char *
++gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
++			   PAGE_SIZE);
++}
++
++char *
++gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()),
++			   PAGE_SIZE);
++}
++
++char *
++gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()),
++			   PAGE_SIZE);
++}
++
++char *
++gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()),
++			   PAGE_SIZE);
++}
++
++__u32
++to_gr_audit(const __u32 reqmode)
++{
++	/* masks off auditable permission flags, then shifts them to create
++	   auditing flags, and adds the special case of append auditing if
++	   we're requesting write */
++	return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0));
++}
++
++struct acl_role_label *
++__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid,
++		      const gid_t gid)
++{
++	unsigned int index = gr_rhash(uid, GR_ROLE_USER, state->acl_role_set.r_size);
++	struct acl_role_label *match;
++	struct role_allowed_ip *ipp;
++	unsigned int x;
++	u32 curr_ip = task->signal->saved_ip;
++
++	match = state->acl_role_set.r_hash[index];
++
++	while (match) {
++		if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) {
++			for (x = 0; x < match->domain_child_num; x++) {
++				if (match->domain_children[x] == uid)
++					goto found;
++			}
++		} else if (match->uidgid == uid && match->roletype & GR_ROLE_USER)
++			break;
++		match = match->next;
++	}
++found:
++	if (match == NULL) {
++	      try_group:
++		index = gr_rhash(gid, GR_ROLE_GROUP, state->acl_role_set.r_size);
++		match = state->acl_role_set.r_hash[index];
++
++		while (match) {
++			if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) {
++				for (x = 0; x < match->domain_child_num; x++) {
++					if (match->domain_children[x] == gid)
++						goto found2;
++				}
++			} else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP)
++				break;
++			match = match->next;
++		}
++found2:
++		if (match == NULL)
++			match = state->default_role;
++		if (match->allowed_ips == NULL)
++			return match;
++		else {
++			for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
++				if (likely
++				    ((ntohl(curr_ip) & ipp->netmask) ==
++				     (ntohl(ipp->addr) & ipp->netmask)))
++					return match;
++			}
++			match = state->default_role;
++		}
++	} else if (match->allowed_ips == NULL) {
++		return match;
++	} else {
++		for (ipp = match->allowed_ips; ipp; ipp = ipp->next) {
++			if (likely
++			    ((ntohl(curr_ip) & ipp->netmask) ==
++			     (ntohl(ipp->addr) & ipp->netmask)))
++				return match;
++		}
++		goto try_group;
++	}
++
++	return match;
++}
++
++static struct acl_role_label *
++lookup_acl_role_label(const struct task_struct *task, const uid_t uid,
++		      const gid_t gid)
++{
++	return __lookup_acl_role_label(&running_polstate, task, uid, gid);
++}
++
++struct acl_subject_label *
++lookup_acl_subj_label(const u64 ino, const dev_t dev,
++		      const struct acl_role_label *role)
++{
++	unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
++	struct acl_subject_label *match;
++
++	match = role->subj_hash[index];
++
++	while (match && (match->inode != ino || match->device != dev ||
++	       (match->mode & GR_DELETED))) {
++		match = match->next;
++	}
++
++	if (match && !(match->mode & GR_DELETED))
++		return match;
++	else
++		return NULL;
++}
++
++struct acl_subject_label *
++lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev,
++			  const struct acl_role_label *role)
++{
++	unsigned int index = gr_fhash(ino, dev, role->subj_hash_size);
++	struct acl_subject_label *match;
++
++	match = role->subj_hash[index];
++
++	while (match && (match->inode != ino || match->device != dev ||
++	       !(match->mode & GR_DELETED))) {
++		match = match->next;
++	}
++
++	if (match && (match->mode & GR_DELETED))
++		return match;
++	else
++		return NULL;
++}
++
++static struct acl_object_label *
++lookup_acl_obj_label(const u64 ino, const dev_t dev,
++		     const struct acl_subject_label *subj)
++{
++	unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
++	struct acl_object_label *match;
++
++	match = subj->obj_hash[index];
++
++	while (match && (match->inode != ino || match->device != dev ||
++	       (match->mode & GR_DELETED))) {
++		match = match->next;
++	}
++
++	if (match && !(match->mode & GR_DELETED))
++		return match;
++	else
++		return NULL;
++}
++
++static struct acl_object_label *
++lookup_acl_obj_label_create(const u64 ino, const dev_t dev,
++		     const struct acl_subject_label *subj)
++{
++	unsigned int index = gr_fhash(ino, dev, subj->obj_hash_size);
++	struct acl_object_label *match;
++
++	match = subj->obj_hash[index];
++
++	while (match && (match->inode != ino || match->device != dev ||
++	       !(match->mode & GR_DELETED))) {
++		match = match->next;
++	}
++
++	if (match && (match->mode & GR_DELETED))
++		return match;
++
++	match = subj->obj_hash[index];
++
++	while (match && (match->inode != ino || match->device != dev ||
++	       (match->mode & GR_DELETED))) {
++		match = match->next;
++	}
++
++	if (match && !(match->mode & GR_DELETED))
++		return match;
++	else
++		return NULL;
++}
++
++struct name_entry *
++__lookup_name_entry(const struct gr_policy_state *state, const char *name)
++{
++	unsigned int len = strlen(name);
++	unsigned int key = full_name_hash(name, len);
++	unsigned int index = key % state->name_set.n_size;
++	struct name_entry *match;
++
++	match = state->name_set.n_hash[index];
++
++	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len)))
++		match = match->next;
++
++	return match;
++}
++
++static struct name_entry *
++lookup_name_entry(const char *name)
++{
++	return __lookup_name_entry(&running_polstate, name);
++}
++
++static struct name_entry *
++lookup_name_entry_create(const char *name)
++{
++	unsigned int len = strlen(name);
++	unsigned int key = full_name_hash(name, len);
++	unsigned int index = key % running_polstate.name_set.n_size;
++	struct name_entry *match;
++
++	match = running_polstate.name_set.n_hash[index];
++
++	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
++			 !match->deleted))
++		match = match->next;
++
++	if (match && match->deleted)
++		return match;
++
++	match = running_polstate.name_set.n_hash[index];
++
++	while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) ||
++			 match->deleted))
++		match = match->next;
++
++	if (match && !match->deleted)
++		return match;
++	else
++		return NULL;
++}
++
++static struct inodev_entry *
++lookup_inodev_entry(const u64 ino, const dev_t dev)
++{
++	unsigned int index = gr_fhash(ino, dev, running_polstate.inodev_set.i_size);
++	struct inodev_entry *match;
++
++	match = running_polstate.inodev_set.i_hash[index];
++
++	while (match && (match->nentry->inode != ino || match->nentry->device != dev))
++		match = match->next;
++
++	return match;
++}
++
++void
++__insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry)
++{
++	unsigned int index = gr_fhash(entry->nentry->inode, entry->nentry->device,
++				    state->inodev_set.i_size);
++	struct inodev_entry **curr;
++
++	entry->prev = NULL;
++
++	curr = &state->inodev_set.i_hash[index];
++	if (*curr != NULL)
++		(*curr)->prev = entry;
++	
++	entry->next = *curr;
++	*curr = entry;
++
++	return;
++}
++
++static void
++insert_inodev_entry(struct inodev_entry *entry)
++{
++	__insert_inodev_entry(&running_polstate, entry);
++}
++
++void
++insert_acl_obj_label(struct acl_object_label *obj,
++		     struct acl_subject_label *subj)
++{
++	unsigned int index =
++	    gr_fhash(obj->inode, obj->device, subj->obj_hash_size);
++	struct acl_object_label **curr;
++
++	obj->prev = NULL;
++
++	curr = &subj->obj_hash[index];
++	if (*curr != NULL)
++		(*curr)->prev = obj;
++
++	obj->next = *curr;
++	*curr = obj;
++
++	return;
++}
++
++void
++insert_acl_subj_label(struct acl_subject_label *obj,
++		      struct acl_role_label *role)
++{
++	unsigned int index = gr_fhash(obj->inode, obj->device, role->subj_hash_size);
++	struct acl_subject_label **curr;
++
++	obj->prev = NULL;
++
++	curr = &role->subj_hash[index];
++	if (*curr != NULL)
++		(*curr)->prev = obj;
++
++	obj->next = *curr;
++	*curr = obj;
++
++	return;
++}
++
++/* derived from glibc fnmatch() 0: match, 1: no match*/
++
++static int
++glob_match(const char *p, const char *n)
++{
++	char c;
++
++	while ((c = *p++) != '\0') {
++	switch (c) {
++		case '?':
++			if (*n == '\0')
++				return 1;
++			else if (*n == '/')
++				return 1;
++			break;
++		case '\\':
++			if (*n != c)
++				return 1;
++			break;
++		case '*':
++			for (c = *p++; c == '?' || c == '*'; c = *p++) {
++				if (*n == '/')
++					return 1;
++				else if (c == '?') {
++					if (*n == '\0')
++						return 1;
++					else
++						++n;
++				}
++			}
++			if (c == '\0') {
++				return 0;
++			} else {
++				const char *endp;
++
++				if ((endp = strchr(n, '/')) == NULL)
++					endp = n + strlen(n);
++
++				if (c == '[') {
++					for (--p; n < endp; ++n)
++						if (!glob_match(p, n))
++							return 0;
++				} else if (c == '/') {
++					while (*n != '\0' && *n != '/')
++						++n;
++					if (*n == '/' && !glob_match(p, n + 1))
++						return 0;
++				} else {
++					for (--p; n < endp; ++n)
++						if (*n == c && !glob_match(p, n))
++							return 0;
++				}
++
++				return 1;
++			}
++		case '[':
++			{
++			int not;
++			char cold;
++
++			if (*n == '\0' || *n == '/')
++				return 1;
++
++			not = (*p == '!' || *p == '^');
++			if (not)
++				++p;
++
++			c = *p++;
++			for (;;) {
++				unsigned char fn = (unsigned char)*n;
++
++				if (c == '\0')
++					return 1;
++				else {
++					if (c == fn)
++						goto matched;
++					cold = c;
++					c = *p++;
++
++					if (c == '-' && *p != ']') {
++						unsigned char cend = *p++;
++
++						if (cend == '\0')
++							return 1;
++
++						if (cold <= fn && fn <= cend)
++							goto matched;
++
++						c = *p++;
++					}
++				}
++
++				if (c == ']')
++					break;
++			}
++			if (!not)
++				return 1;
++			break;
++		matched:
++			while (c != ']') {
++				if (c == '\0')
++					return 1;
++
++				c = *p++;
++			}
++			if (not)
++				return 1;
++		}
++		break;
++	default:
++		if (c != *n)
++			return 1;
++	}
++
++	++n;
++	}
++
++	if (*n == '\0')
++		return 0;
++
++	if (*n == '/')
++		return 0;
++
++	return 1;
++}
++
++static struct acl_object_label *
++chk_glob_label(struct acl_object_label *globbed,
++	const struct dentry *dentry, const struct vfsmount *mnt, char **path)
++{
++	struct acl_object_label *tmp;
++
++	if (*path == NULL)
++		*path = gr_to_filename_nolock(dentry, mnt);
++
++	tmp = globbed;
++
++	while (tmp) {
++		if (!glob_match(tmp->filename, *path))
++			return tmp;
++		tmp = tmp->next;
++	}
++
++	return NULL;
++}
++
++static struct acl_object_label *
++__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
++	    const u64 curr_ino, const dev_t curr_dev,
++	    const struct acl_subject_label *subj, char **path, const int checkglob)
++{
++	struct acl_subject_label *tmpsubj;
++	struct acl_object_label *retval;
++	struct acl_object_label *retval2;
++
++	tmpsubj = (struct acl_subject_label *) subj;
++	read_lock(&gr_inode_lock);
++	do {
++		retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj);
++		if (retval) {
++			if (checkglob && retval->globbed) {
++				retval2 = chk_glob_label(retval->globbed, orig_dentry, orig_mnt, path);
++				if (retval2)
++					retval = retval2;
++			}
++			break;
++		}
++	} while ((tmpsubj = tmpsubj->parent_subject));
++	read_unlock(&gr_inode_lock);
++
++	return retval;
++}
++
++static struct acl_object_label *
++full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt,
++	    struct dentry *curr_dentry,
++	    const struct acl_subject_label *subj, char **path, const int checkglob)
++{
++	int newglob = checkglob;
++	u64 inode;
++	dev_t device;
++
++	/* if we aren't checking a subdirectory of the original path yet, don't do glob checking
++	   as we don't want a / * rule to match instead of the / object
++	   don't do this for create lookups that call this function though, since they're looking up
++	   on the parent and thus need globbing checks on all paths
++	*/
++	if (orig_dentry == curr_dentry && newglob != GR_CREATE_GLOB)
++		newglob = GR_NO_GLOB;
++
++	spin_lock(&curr_dentry->d_lock);
++	inode = __get_ino(curr_dentry);
++	device = __get_dev(curr_dentry);
++	spin_unlock(&curr_dentry->d_lock);
++
++	return __full_lookup(orig_dentry, orig_mnt, inode, device, subj, path, newglob);
++}
++
++#ifdef CONFIG_HUGETLBFS
++static inline bool
++is_hugetlbfs_mnt(const struct vfsmount *mnt)
++{
++	int i;
++	for (i = 0; i < HUGE_MAX_HSTATE; i++) {
++		if (unlikely(hugetlbfs_vfsmount[i] == mnt))
++			return true;
++	}
++
++	return false;
++}
++#endif
++
++static struct acl_object_label *
++__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++	      const struct acl_subject_label *subj, char *path, const int checkglob)
++{
++	struct dentry *dentry = (struct dentry *) l_dentry;
++	struct vfsmount *mnt = (struct vfsmount *) l_mnt;
++	struct mount *real_mnt = real_mount(mnt);
++	struct acl_object_label *retval;
++	struct dentry *parent;
++
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++
++	if (unlikely((mnt == shm_mnt && dentry->d_inode->i_nlink == 0) || mnt == pipe_mnt ||
++#ifdef CONFIG_NET
++	    mnt == sock_mnt ||
++#endif
++#ifdef CONFIG_HUGETLBFS
++	    (is_hugetlbfs_mnt(mnt) && dentry->d_inode->i_nlink == 0) ||
++#endif
++		/* ignore Eric Biederman */
++	    IS_PRIVATE(l_dentry->d_inode))) {
++		retval = (subj->mode & GR_SHMEXEC) ? fakefs_obj_rwx : fakefs_obj_rw;
++		goto out;
++	}
++
++	for (;;) {
++		if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
++			break;
++
++		if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
++			if (!mnt_has_parent(real_mnt))
++				break;
++
++			retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
++			if (retval != NULL)
++				goto out;
++
++			dentry = real_mnt->mnt_mountpoint;
++			real_mnt = real_mnt->mnt_parent;
++			mnt = &real_mnt->mnt;
++			continue;
++		}
++
++		parent = dentry->d_parent;
++		retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
++		if (retval != NULL)
++			goto out;
++
++		dentry = parent;
++	}
++
++	retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path, checkglob);
++
++	/* gr_real_root is pinned so we don't have to hold a reference */
++	if (retval == NULL)
++		retval = full_lookup(l_dentry, l_mnt, gr_real_root.dentry, subj, &path, checkglob);
++out:
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++
++	BUG_ON(retval == NULL);
++
++	return retval;
++}
++
++static struct acl_object_label *
++chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++	      const struct acl_subject_label *subj)
++{
++	char *path = NULL;
++	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_REG_GLOB);
++}
++
++static struct acl_object_label *
++chk_obj_label_noglob(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++	      const struct acl_subject_label *subj)
++{
++	char *path = NULL;
++	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_NO_GLOB);
++}
++
++static struct acl_object_label *
++chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++		     const struct acl_subject_label *subj, char *path)
++{
++	return __chk_obj_label(l_dentry, l_mnt, subj, path, GR_CREATE_GLOB);
++}
++
++struct acl_subject_label *
++chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt,
++	       const struct acl_role_label *role)
++{
++	struct dentry *dentry = (struct dentry *) l_dentry;
++	struct vfsmount *mnt = (struct vfsmount *) l_mnt;
++	struct mount *real_mnt = real_mount(mnt);
++	struct acl_subject_label *retval;
++	struct dentry *parent;
++
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++
++	for (;;) {
++		if (dentry == gr_real_root.dentry && mnt == gr_real_root.mnt)
++			break;
++		if (dentry == mnt->mnt_root || IS_ROOT(dentry)) {
++			if (!mnt_has_parent(real_mnt))
++				break;
++
++			spin_lock(&dentry->d_lock);
++			read_lock(&gr_inode_lock);
++			retval =
++				lookup_acl_subj_label(__get_ino(dentry),
++						__get_dev(dentry), role);
++			read_unlock(&gr_inode_lock);
++			spin_unlock(&dentry->d_lock);
++			if (retval != NULL)
++				goto out;
++
++			dentry = real_mnt->mnt_mountpoint;
++			real_mnt = real_mnt->mnt_parent;
++			mnt = &real_mnt->mnt;
++			continue;
++		}
++
++		spin_lock(&dentry->d_lock);
++		read_lock(&gr_inode_lock);
++		retval = lookup_acl_subj_label(__get_ino(dentry),
++					  __get_dev(dentry), role);
++		read_unlock(&gr_inode_lock);
++		parent = dentry->d_parent;
++		spin_unlock(&dentry->d_lock);
++
++		if (retval != NULL)
++			goto out;
++
++		dentry = parent;
++	}
++
++	spin_lock(&dentry->d_lock);
++	read_lock(&gr_inode_lock);
++	retval = lookup_acl_subj_label(__get_ino(dentry),
++				  __get_dev(dentry), role);
++	read_unlock(&gr_inode_lock);
++	spin_unlock(&dentry->d_lock);
++
++	if (unlikely(retval == NULL)) {
++		/* gr_real_root is pinned, we don't need to hold a reference */
++		read_lock(&gr_inode_lock);
++		retval = lookup_acl_subj_label(__get_ino(gr_real_root.dentry),
++					  __get_dev(gr_real_root.dentry), role);
++		read_unlock(&gr_inode_lock);
++	}
++out:
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++
++	BUG_ON(retval == NULL);
++
++	return retval;
++}
++
++void
++assign_special_role(const char *rolename)
++{
++	struct acl_object_label *obj;
++	struct acl_role_label *r;
++	struct acl_role_label *assigned = NULL;
++	struct task_struct *tsk;
++	struct file *filp;
++
++	FOR_EACH_ROLE_START(r)
++		if (!strcmp(rolename, r->rolename) &&
++		    (r->roletype & GR_ROLE_SPECIAL)) {
++			assigned = r;
++			break;
++		}
++	FOR_EACH_ROLE_END(r)
++
++	if (!assigned)
++		return;
++
++	read_lock(&tasklist_lock);
++	read_lock(&grsec_exec_file_lock);
++
++	tsk = current->real_parent;
++	if (tsk == NULL)
++		goto out_unlock;
++
++	filp = tsk->exec_file;
++	if (filp == NULL)
++		goto out_unlock;
++
++	tsk->is_writable = 0;
++	tsk->inherited = 0;
++
++	tsk->acl_sp_role = 1;
++	tsk->acl_role_id = ++acl_sp_role_value;
++	tsk->role = assigned;
++	tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role);
++
++	/* ignore additional mmap checks for processes that are writable
++	   by the default ACL */
++	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		tsk->is_writable = 1;
++	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		tsk->is_writable = 1;
++
++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
++	printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename,
++			tsk->acl->filename, tsk->comm, task_pid_nr(tsk));
++#endif
++
++out_unlock:
++	read_unlock(&grsec_exec_file_lock);
++	read_unlock(&tasklist_lock);
++	return;
++}
++
++
++static void
++gr_log_learn(const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode)
++{
++	struct task_struct *task = current;
++	const struct cred *cred = current_cred();
++
++	security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype,
++		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
++		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
++		       1UL, 1UL, gr_to_filename(dentry, mnt), (unsigned long) mode, &task->signal->saved_ip);
++
++	return;
++}
++
++static void
++gr_log_learn_uid_change(const kuid_t real, const kuid_t effective, const kuid_t fs)
++{
++	struct task_struct *task = current;
++	const struct cred *cred = current_cred();
++
++	security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
++		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
++		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
++		       'u', GR_GLOBAL_UID(real), GR_GLOBAL_UID(effective), GR_GLOBAL_UID(fs), &task->signal->saved_ip);
++
++	return;
++}
++
++static void
++gr_log_learn_gid_change(const kgid_t real, const kgid_t effective, const kgid_t fs)
++{
++	struct task_struct *task = current;
++	const struct cred *cred = current_cred();
++
++	security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype,
++		       GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry,
++		       task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename,
++		       'g', GR_GLOBAL_GID(real), GR_GLOBAL_GID(effective), GR_GLOBAL_GID(fs), &task->signal->saved_ip);
++
++	return;
++}
++
++static void
++gr_set_proc_res(struct task_struct *task)
++{
++	struct acl_subject_label *proc;
++	unsigned short i;
++
++	proc = task->acl;
++
++	if (proc->mode & (GR_LEARN | GR_INHERITLEARN))
++		return;
++
++	for (i = 0; i < RLIM_NLIMITS; i++) {
++		unsigned long rlim_cur, rlim_max;
++
++		if (!(proc->resmask & (1U << i)))
++			continue;
++
++		rlim_cur = proc->res[i].rlim_cur;
++		rlim_max = proc->res[i].rlim_max;
++
++		if (i == RLIMIT_NOFILE) {
++			unsigned long saved_sysctl_nr_open = sysctl_nr_open;
++			if (rlim_cur > saved_sysctl_nr_open)
++				rlim_cur = saved_sysctl_nr_open;
++			if (rlim_max > saved_sysctl_nr_open)
++				rlim_max = saved_sysctl_nr_open;
++		}
++
++		task->signal->rlim[i].rlim_cur = rlim_cur;
++		task->signal->rlim[i].rlim_max = rlim_max;
++
++		if (i == RLIMIT_CPU)
++			update_rlimit_cpu(task, rlim_cur);
++	}
++
++	return;
++}
++
++/* both of the below must be called with
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++	read_lock(&grsec_exec_file_lock);
++   except in the case of gr_set_role_label() (for __gr_get_subject_for_task)
++*/
++
++struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback)
++{
++	char *tmpname;
++	struct acl_subject_label *tmpsubj;
++	struct file *filp;
++	struct name_entry *nmatch;
++
++	filp = task->exec_file;
++	if (filp == NULL)
++		return NULL;
++
++	/* the following is to apply the correct subject
++	   on binaries running when the RBAC system
++	   is enabled, when the binaries have been
++	   replaced or deleted since their execution
++	   -----
++	   when the RBAC system starts, the inode/dev
++	   from exec_file will be one the RBAC system
++	   is unaware of.  It only knows the inode/dev
++	   of the present file on disk, or the absence
++	   of it.
++	*/
++
++	if (filename)
++		nmatch = __lookup_name_entry(state, filename);
++	else {
++		preempt_disable();
++		tmpname = gr_to_filename_rbac(filp->f_path.dentry, filp->f_path.mnt);
++
++		nmatch = __lookup_name_entry(state, tmpname);
++		preempt_enable();
++	}
++	tmpsubj = NULL;
++	if (nmatch) {
++		if (nmatch->deleted)
++			tmpsubj = lookup_acl_subj_label_deleted(nmatch->inode, nmatch->device, task->role);
++		else
++			tmpsubj = lookup_acl_subj_label(nmatch->inode, nmatch->device, task->role);
++	}
++	/* this also works for the reload case -- if we don't match a potentially inherited subject
++	   then we fall back to a normal lookup based on the binary's ino/dev
++	*/
++	if (tmpsubj == NULL && fallback)
++		tmpsubj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, task->role);
++
++	return tmpsubj;
++}
++
++static struct acl_subject_label *gr_get_subject_for_task(struct task_struct *task, const char *filename, int fallback)
++{
++	return __gr_get_subject_for_task(&running_polstate, task, filename, fallback);
++}
++
++void __gr_apply_subject_to_task(const struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj)
++{
++	struct acl_object_label *obj;
++	struct file *filp;
++
++	filp = task->exec_file;
++
++	task->acl = subj;
++	task->is_writable = 0;
++	/* ignore additional mmap checks for processes that are writable 
++	   by the default ACL */
++	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, state->default_role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		task->is_writable = 1;
++	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		task->is_writable = 1;
++
++	gr_set_proc_res(task);
++
++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
++	printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
++#endif
++}
++
++static void gr_apply_subject_to_task(struct task_struct *task, struct acl_subject_label *subj)
++{
++	__gr_apply_subject_to_task(&running_polstate, task, subj);
++}
++
++__u32
++gr_search_file(const struct dentry * dentry, const __u32 mode,
++	       const struct vfsmount * mnt)
++{
++	__u32 retval = mode;
++	struct acl_subject_label *curracl;
++	struct acl_object_label *currobj;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return (mode & ~GR_AUDITS);
++
++	curracl = current->acl;
++
++	currobj = chk_obj_label(dentry, mnt, curracl);
++	retval = currobj->mode & mode;
++
++	/* if we're opening a specified transfer file for writing
++	   (e.g. /dev/initctl), then transfer our role to init
++	*/
++	if (unlikely(currobj->mode & GR_INIT_TRANSFER && retval & GR_WRITE &&
++		     current->role->roletype & GR_ROLE_PERSIST)) {
++		struct task_struct *task = init_pid_ns.child_reaper;
++
++		if (task->role != current->role) {
++			struct acl_subject_label *subj;
++
++			task->acl_sp_role = 0;
++			task->acl_role_id = current->acl_role_id;
++			task->role = current->role;
++			rcu_read_lock();
++			read_lock(&grsec_exec_file_lock);
++			subj = gr_get_subject_for_task(task, NULL, 1);
++			gr_apply_subject_to_task(task, subj);
++			read_unlock(&grsec_exec_file_lock);
++			rcu_read_unlock();
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_INIT_TRANSFER_MSG);
++		}
++	}
++
++	if (unlikely
++	    ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE)
++	     && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) {
++		__u32 new_mode = mode;
++
++		new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
++
++		retval = new_mode;
++
++		if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN)
++			new_mode |= GR_INHERIT;
++
++		if (!(mode & GR_NOLEARN))
++			gr_log_learn(dentry, mnt, new_mode);
++	}
++
++	return retval;
++}
++
++struct acl_object_label *gr_get_create_object(const struct dentry *new_dentry,
++					      const struct dentry *parent,
++					      const struct vfsmount *mnt)
++{
++	struct name_entry *match;
++	struct acl_object_label *matchpo;
++	struct acl_subject_label *curracl;
++	char *path;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return NULL;
++
++	preempt_disable();
++	path = gr_to_filename_rbac(new_dentry, mnt);
++	match = lookup_name_entry_create(path);
++
++	curracl = current->acl;
++
++	if (match) {
++		read_lock(&gr_inode_lock);
++		matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl);
++		read_unlock(&gr_inode_lock);
++
++		if (matchpo) {
++			preempt_enable();
++			return matchpo;
++		}
++	}
++
++	// lookup parent
++
++	matchpo = chk_obj_create_label(parent, mnt, curracl, path);
++
++	preempt_enable();
++	return matchpo;
++}
++
++__u32
++gr_check_create(const struct dentry * new_dentry, const struct dentry * parent,
++		const struct vfsmount * mnt, const __u32 mode)
++{
++	struct acl_object_label *matchpo;
++	__u32 retval;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return (mode & ~GR_AUDITS);
++
++	matchpo = gr_get_create_object(new_dentry, parent, mnt);
++
++	retval = matchpo->mode & mode;
++
++	if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS)))
++	    && (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
++		__u32 new_mode = mode;
++
++		new_mode &= ~(GR_AUDITS | GR_SUPPRESS);
++
++		gr_log_learn(new_dentry, mnt, new_mode);
++		return new_mode;
++	}
++
++	return retval;
++}
++
++__u32
++gr_check_link(const struct dentry * new_dentry,
++	      const struct dentry * parent_dentry,
++	      const struct vfsmount * parent_mnt,
++	      const struct dentry * old_dentry, const struct vfsmount * old_mnt)
++{
++	struct acl_object_label *obj;
++	__u32 oldmode, newmode;
++	__u32 needmode;
++	__u32 checkmodes = GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | GR_SETID | GR_READ |
++			   GR_DELETE | GR_INHERIT;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return (GR_CREATE | GR_LINK);
++
++	obj = chk_obj_label(old_dentry, old_mnt, current->acl);
++	oldmode = obj->mode;
++
++	obj = gr_get_create_object(new_dentry, parent_dentry, parent_mnt);
++	newmode = obj->mode;
++
++	needmode = newmode & checkmodes;
++
++	// old name for hardlink must have at least the permissions of the new name
++	if ((oldmode & needmode) != needmode)
++		goto bad;
++
++	// if old name had restrictions/auditing, make sure the new name does as well
++	needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS);
++
++	// don't allow hardlinking of suid/sgid/fcapped files without permission
++	if (is_privileged_binary(old_dentry))
++		needmode |= GR_SETID;
++
++	if ((newmode & needmode) != needmode)
++		goto bad;
++
++	// enforce minimum permissions
++	if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK))
++		return newmode;
++bad:
++	needmode = oldmode;
++	if (is_privileged_binary(old_dentry))
++		needmode |= GR_SETID;
++	
++	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) {
++		gr_log_learn(old_dentry, old_mnt, needmode | GR_CREATE | GR_LINK);
++		return (GR_CREATE | GR_LINK);
++	} else if (newmode & GR_SUPPRESS)
++		return GR_SUPPRESS;
++	else
++		return 0;
++}
++
++int
++gr_check_hidden_task(const struct task_struct *task)
++{
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++
++	if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW))
++		return 1;
++
++	return 0;
++}
++
++int
++gr_check_protected_task(const struct task_struct *task)
++{
++	if (unlikely(!(gr_status & GR_READY) || !task))
++		return 0;
++
++	if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
++	    task->acl != current->acl)
++		return 1;
++
++	return 0;
++}
++
++int
++gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
++{
++	struct task_struct *p;
++	int ret = 0;
++
++	if (unlikely(!(gr_status & GR_READY) || !pid))
++		return ret;
++
++	read_lock(&tasklist_lock);
++	do_each_pid_task(pid, type, p) {
++		if ((p->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) &&
++		    p->acl != current->acl) {
++			ret = 1;
++			goto out;
++		}
++	} while_each_pid_task(pid, type, p);
++out:
++	read_unlock(&tasklist_lock);
++
++	return ret;
++}
++
++void
++gr_copy_label(struct task_struct *tsk)
++{
++	struct task_struct *p = current;
++
++	tsk->inherited = p->inherited;
++	tsk->acl_sp_role = 0;
++	tsk->acl_role_id = p->acl_role_id;
++	tsk->acl = p->acl;
++	tsk->role = p->role;
++	tsk->signal->used_accept = 0;
++	tsk->signal->curr_ip = p->signal->curr_ip;
++	tsk->signal->saved_ip = p->signal->saved_ip;
++	if (p->exec_file)
++		get_file(p->exec_file);
++	tsk->exec_file = p->exec_file;
++	tsk->is_writable = p->is_writable;
++	if (unlikely(p->signal->used_accept)) {
++		p->signal->curr_ip = 0;
++		p->signal->saved_ip = 0;
++	}
++
++	return;
++}
++
++extern int gr_process_kernel_setuid_ban(struct user_struct *user);
++
++int
++gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
++{
++	unsigned int i;
++	__u16 num;
++	uid_t *uidlist;
++	uid_t curuid;
++	int realok = 0;
++	int effectiveok = 0;
++	int fsok = 0;
++	uid_t globalreal, globaleffective, globalfs;
++
++#if defined(CONFIG_GRKERNSEC_KERN_LOCKOUT)
++	struct user_struct *user;
++
++	if (!uid_valid(real))
++		goto skipit;
++
++	/* find user based on global namespace */
++
++	globalreal = GR_GLOBAL_UID(real);
++
++	user = find_user(make_kuid(&init_user_ns, globalreal));
++	if (user == NULL)
++		goto skipit;
++
++	if (gr_process_kernel_setuid_ban(user)) {
++		/* for find_user */
++		free_uid(user);
++		return 1;
++	}
++
++	/* for find_user */
++	free_uid(user);
++
++skipit:
++#endif
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++
++	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++		gr_log_learn_uid_change(real, effective, fs);
++
++	num = current->acl->user_trans_num;
++	uidlist = current->acl->user_transitions;
++
++	if (uidlist == NULL)
++		return 0;
++
++	if (!uid_valid(real)) {
++		realok = 1;
++		globalreal = (uid_t)-1;		
++	} else {
++		globalreal = GR_GLOBAL_UID(real);		
++	}
++	if (!uid_valid(effective)) {
++		effectiveok = 1;
++		globaleffective = (uid_t)-1;
++	} else {
++		globaleffective = GR_GLOBAL_UID(effective);
++	}
++	if (!uid_valid(fs)) {
++		fsok = 1;
++		globalfs = (uid_t)-1;
++	} else {
++		globalfs = GR_GLOBAL_UID(fs);
++	}
++
++	if (current->acl->user_trans_type & GR_ID_ALLOW) {
++		for (i = 0; i < num; i++) {
++			curuid = uidlist[i];
++			if (globalreal == curuid)
++				realok = 1;
++			if (globaleffective == curuid)
++				effectiveok = 1;
++			if (globalfs == curuid)
++				fsok = 1;
++		}
++	} else if (current->acl->user_trans_type & GR_ID_DENY) {
++		for (i = 0; i < num; i++) {
++			curuid = uidlist[i];
++			if (globalreal == curuid)
++				break;
++			if (globaleffective == curuid)
++				break;
++			if (globalfs == curuid)
++				break;
++		}
++		/* not in deny list */
++		if (i == num) {
++			realok = 1;
++			effectiveok = 1;
++			fsok = 1;
++		}
++	}
++
++	if (realok && effectiveok && fsok)
++		return 0;
++	else {
++		gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
++		return 1;
++	}
++}
++
++int
++gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
++{
++	unsigned int i;
++	__u16 num;
++	gid_t *gidlist;
++	gid_t curgid;
++	int realok = 0;
++	int effectiveok = 0;
++	int fsok = 0;
++	gid_t globalreal, globaleffective, globalfs;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++
++	if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++		gr_log_learn_gid_change(real, effective, fs);
++
++	num = current->acl->group_trans_num;
++	gidlist = current->acl->group_transitions;
++
++	if (gidlist == NULL)
++		return 0;
++
++	if (!gid_valid(real)) {
++		realok = 1;
++		globalreal = (gid_t)-1;		
++	} else {
++		globalreal = GR_GLOBAL_GID(real);
++	}
++	if (!gid_valid(effective)) {
++		effectiveok = 1;
++		globaleffective = (gid_t)-1;		
++	} else {
++		globaleffective = GR_GLOBAL_GID(effective);
++	}
++	if (!gid_valid(fs)) {
++		fsok = 1;
++		globalfs = (gid_t)-1;		
++	} else {
++		globalfs = GR_GLOBAL_GID(fs);
++	}
++
++	if (current->acl->group_trans_type & GR_ID_ALLOW) {
++		for (i = 0; i < num; i++) {
++			curgid = gidlist[i];
++			if (globalreal == curgid)
++				realok = 1;
++			if (globaleffective == curgid)
++				effectiveok = 1;
++			if (globalfs == curgid)
++				fsok = 1;
++		}
++	} else if (current->acl->group_trans_type & GR_ID_DENY) {
++		for (i = 0; i < num; i++) {
++			curgid = gidlist[i];
++			if (globalreal == curgid)
++				break;
++			if (globaleffective == curgid)
++				break;
++			if (globalfs == curgid)
++				break;
++		}
++		/* not in deny list */
++		if (i == num) {
++			realok = 1;
++			effectiveok = 1;
++			fsok = 1;
++		}
++	}
++
++	if (realok && effectiveok && fsok)
++		return 0;
++	else {
++		gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : globalfs) : globaleffective) : globalreal);
++		return 1;
++	}
++}
++
++extern int gr_acl_is_capable(const int cap);
++
++void
++gr_set_role_label(struct task_struct *task, const kuid_t kuid, const kgid_t kgid)
++{
++	struct acl_role_label *role = task->role;
++	struct acl_role_label *origrole = role;
++	struct acl_subject_label *subj = NULL;
++	struct acl_object_label *obj;
++	struct file *filp;
++	uid_t uid;
++	gid_t gid;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return;
++
++	uid = GR_GLOBAL_UID(kuid);
++	gid = GR_GLOBAL_GID(kgid);
++
++	filp = task->exec_file;
++
++	/* kernel process, we'll give them the kernel role */
++	if (unlikely(!filp)) {
++		task->role = running_polstate.kernel_role;
++		task->acl = running_polstate.kernel_role->root_label;
++		return;
++	} else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) {
++		/* save the current ip at time of role lookup so that the proper
++		   IP will be learned for role_allowed_ip */
++		task->signal->saved_ip = task->signal->curr_ip;
++		role = lookup_acl_role_label(task, uid, gid);
++	}
++
++	/* don't change the role if we're not a privileged process */
++	if (role && task->role != role &&
++	    (((role->roletype & GR_ROLE_USER) && !gr_acl_is_capable(CAP_SETUID)) ||
++	     ((role->roletype & GR_ROLE_GROUP) && !gr_acl_is_capable(CAP_SETGID))))
++		return;
++
++	task->role = role;
++
++	if (task->inherited) {
++		/* if we reached our subject through inheritance, then first see
++		   if there's a subject of the same name in the new role that has
++		   an object that would result in the same inherited subject
++		*/
++		subj = gr_get_subject_for_task(task, task->acl->filename, 0);
++		if (subj) {
++			obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, subj);
++			if (!(obj->mode & GR_INHERIT))
++				subj = NULL;
++		}
++		
++	}
++	if (subj == NULL) {
++		/* otherwise:
++		   perform subject lookup in possibly new role
++		   we can use this result below in the case where role == task->role
++		*/
++		subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role);
++	}
++
++	/* if we changed uid/gid, but result in the same role
++	   and are using inheritance, don't lose the inherited subject
++	   if current subject is other than what normal lookup
++	   would result in, we arrived via inheritance, don't
++	   lose subject
++	*/
++	if (role != origrole || (!(task->acl->mode & GR_INHERITLEARN) &&
++				   (subj == task->acl)))
++		task->acl = subj;
++
++	/* leave task->inherited unaffected */
++
++	task->is_writable = 0;
++
++	/* ignore additional mmap checks for processes that are writable 
++	   by the default ACL */
++	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		task->is_writable = 1;
++	obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		task->is_writable = 1;
++
++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
++	printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
++#endif
++
++	gr_set_proc_res(task);
++
++	return;
++}
++
++int
++gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
++		  const int unsafe_flags)
++{
++	struct task_struct *task = current;
++	struct acl_subject_label *newacl;
++	struct acl_object_label *obj;
++	__u32 retmode;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++
++	newacl = chk_subj_label(dentry, mnt, task->role);
++
++	/* special handling for if we did an strace -f -p <pid> from an admin role, where pid then
++	   did an exec
++	*/
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++	if (task->ptrace && task->parent && ((task->parent->role->roletype & GR_ROLE_GOD) ||
++	    (task->parent->acl->mode & GR_POVERRIDE))) {
++		read_unlock(&tasklist_lock);
++		rcu_read_unlock();
++		goto skip_check;
++	}
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++
++	if (unsafe_flags && !(task->acl->mode & GR_POVERRIDE) && (task->acl != newacl) &&
++	     !(task->role->roletype & GR_ROLE_GOD) &&
++	     !gr_search_file(dentry, GR_PTRACERD, mnt) &&
++	     !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) {
++		if (unsafe_flags & LSM_UNSAFE_SHARE)
++			gr_log_fs_generic(GR_DONT_AUDIT, GR_UNSAFESHARE_EXEC_ACL_MSG, dentry, mnt);
++		else
++			gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt);
++		return -EACCES;
++	}
++
++skip_check:
++
++	obj = chk_obj_label(dentry, mnt, task->acl);
++	retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT);
++
++	if (!(task->acl->mode & GR_INHERITLEARN) &&
++	    ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) {
++		if (obj->nested)
++			task->acl = obj->nested;
++		else
++			task->acl = newacl;
++		task->inherited = 0;
++	} else {
++		task->inherited = 1;
++		if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT)
++			gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt);
++	}
++
++	task->is_writable = 0;
++
++	/* ignore additional mmap checks for processes that are writable 
++	   by the default ACL */
++	obj = chk_obj_label(dentry, mnt, running_polstate.default_role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		task->is_writable = 1;
++	obj = chk_obj_label(dentry, mnt, task->role->root_label);
++	if (unlikely(obj->mode & GR_WRITE))
++		task->is_writable = 1;
++
++	gr_set_proc_res(task);
++
++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
++	printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task_pid_nr(task), task->role->rolename, task->acl->filename);
++#endif
++	return 0;
++}
++
++/* always called with valid inodev ptr */
++static void
++do_handle_delete(struct inodev_entry *inodev, const u64 ino, const dev_t dev)
++{
++	struct acl_object_label *matchpo;
++	struct acl_subject_label *matchps;
++	struct acl_subject_label *subj;
++	struct acl_role_label *role;
++	unsigned int x;
++
++	FOR_EACH_ROLE_START(role)
++		FOR_EACH_SUBJECT_START(role, subj, x)
++			if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
++				matchpo->mode |= GR_DELETED;
++		FOR_EACH_SUBJECT_END(subj,x)
++		FOR_EACH_NESTED_SUBJECT_START(role, subj)
++			/* nested subjects aren't in the role's subj_hash table */
++			if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL)
++				matchpo->mode |= GR_DELETED;
++		FOR_EACH_NESTED_SUBJECT_END(subj)
++		if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL)
++			matchps->mode |= GR_DELETED;
++	FOR_EACH_ROLE_END(role)
++
++	inodev->nentry->deleted = 1;
++
++	return;
++}
++
++void
++gr_handle_delete(const u64 ino, const dev_t dev)
++{
++	struct inodev_entry *inodev;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return;
++
++	write_lock(&gr_inode_lock);
++	inodev = lookup_inodev_entry(ino, dev);
++	if (inodev != NULL)
++		do_handle_delete(inodev, ino, dev);
++	write_unlock(&gr_inode_lock);
++
++	return;
++}
++
++static void
++update_acl_obj_label(const u64 oldinode, const dev_t olddevice,
++		     const u64 newinode, const dev_t newdevice,
++		     struct acl_subject_label *subj)
++{
++	unsigned int index = gr_fhash(oldinode, olddevice, subj->obj_hash_size);
++	struct acl_object_label *match;
++
++	match = subj->obj_hash[index];
++
++	while (match && (match->inode != oldinode ||
++	       match->device != olddevice ||
++	       !(match->mode & GR_DELETED)))
++		match = match->next;
++
++	if (match && (match->inode == oldinode)
++	    && (match->device == olddevice)
++	    && (match->mode & GR_DELETED)) {
++		if (match->prev == NULL) {
++			subj->obj_hash[index] = match->next;
++			if (match->next != NULL)
++				match->next->prev = NULL;
++		} else {
++			match->prev->next = match->next;
++			if (match->next != NULL)
++				match->next->prev = match->prev;
++		}
++		match->prev = NULL;
++		match->next = NULL;
++		match->inode = newinode;
++		match->device = newdevice;
++		match->mode &= ~GR_DELETED;
++
++		insert_acl_obj_label(match, subj);
++	}
++
++	return;
++}
++
++static void
++update_acl_subj_label(const u64 oldinode, const dev_t olddevice,
++		      const u64 newinode, const dev_t newdevice,
++		      struct acl_role_label *role)
++{
++	unsigned int index = gr_fhash(oldinode, olddevice, role->subj_hash_size);
++	struct acl_subject_label *match;
++
++	match = role->subj_hash[index];
++
++	while (match && (match->inode != oldinode ||
++	       match->device != olddevice ||
++	       !(match->mode & GR_DELETED)))
++		match = match->next;
++
++	if (match && (match->inode == oldinode)
++	    && (match->device == olddevice)
++	    && (match->mode & GR_DELETED)) {
++		if (match->prev == NULL) {
++			role->subj_hash[index] = match->next;
++			if (match->next != NULL)
++				match->next->prev = NULL;
++		} else {
++			match->prev->next = match->next;
++			if (match->next != NULL)
++				match->next->prev = match->prev;
++		}
++		match->prev = NULL;
++		match->next = NULL;
++		match->inode = newinode;
++		match->device = newdevice;
++		match->mode &= ~GR_DELETED;
++
++		insert_acl_subj_label(match, role);
++	}
++
++	return;
++}
++
++static void
++update_inodev_entry(const u64 oldinode, const dev_t olddevice,
++		    const u64 newinode, const dev_t newdevice)
++{
++	unsigned int index = gr_fhash(oldinode, olddevice, running_polstate.inodev_set.i_size);
++	struct inodev_entry *match;
++
++	match = running_polstate.inodev_set.i_hash[index];
++
++	while (match && (match->nentry->inode != oldinode ||
++	       match->nentry->device != olddevice || !match->nentry->deleted))
++		match = match->next;
++
++	if (match && (match->nentry->inode == oldinode)
++	    && (match->nentry->device == olddevice) &&
++	    match->nentry->deleted) {
++		if (match->prev == NULL) {
++			running_polstate.inodev_set.i_hash[index] = match->next;
++			if (match->next != NULL)
++				match->next->prev = NULL;
++		} else {
++			match->prev->next = match->next;
++			if (match->next != NULL)
++				match->next->prev = match->prev;
++		}
++		match->prev = NULL;
++		match->next = NULL;
++		match->nentry->inode = newinode;
++		match->nentry->device = newdevice;
++		match->nentry->deleted = 0;
++
++		insert_inodev_entry(match);
++	}
++
++	return;
++}
++
++static void
++__do_handle_create(const struct name_entry *matchn, u64 ino, dev_t dev)
++{
++	struct acl_subject_label *subj;
++	struct acl_role_label *role;
++	unsigned int x;
++
++	FOR_EACH_ROLE_START(role)
++		update_acl_subj_label(matchn->inode, matchn->device, ino, dev, role);
++
++		FOR_EACH_NESTED_SUBJECT_START(role, subj)
++			if ((subj->inode == ino) && (subj->device == dev)) {
++				subj->inode = ino;
++				subj->device = dev;
++			}
++			/* nested subjects aren't in the role's subj_hash table */
++			update_acl_obj_label(matchn->inode, matchn->device,
++					     ino, dev, subj);
++		FOR_EACH_NESTED_SUBJECT_END(subj)
++		FOR_EACH_SUBJECT_START(role, subj, x)
++			update_acl_obj_label(matchn->inode, matchn->device,
++					     ino, dev, subj);
++		FOR_EACH_SUBJECT_END(subj,x)
++	FOR_EACH_ROLE_END(role)
++
++	update_inodev_entry(matchn->inode, matchn->device, ino, dev);
++
++	return;
++}
++
++static void
++do_handle_create(const struct name_entry *matchn, const struct dentry *dentry,
++		 const struct vfsmount *mnt)
++{
++	u64 ino = __get_ino(dentry);
++	dev_t dev = __get_dev(dentry);
++
++	__do_handle_create(matchn, ino, dev);	
++
++	return;
++}
++
++void
++gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	struct name_entry *matchn;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return;
++
++	preempt_disable();
++	matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt));
++
++	if (unlikely((unsigned long)matchn)) {
++		write_lock(&gr_inode_lock);
++		do_handle_create(matchn, dentry, mnt);
++		write_unlock(&gr_inode_lock);
++	}
++	preempt_enable();
++
++	return;
++}
++
++void
++gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode)
++{
++	struct name_entry *matchn;
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return;
++
++	preempt_disable();
++	matchn = lookup_name_entry(gr_to_proc_filename_rbac(dentry, init_pid_ns.proc_mnt));
++
++	if (unlikely((unsigned long)matchn)) {
++		write_lock(&gr_inode_lock);
++		__do_handle_create(matchn, inode->i_ino, inode->i_sb->s_dev);
++		write_unlock(&gr_inode_lock);
++	}
++	preempt_enable();
++
++	return;
++}
++
++void
++gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
++		 struct dentry *old_dentry,
++		 struct dentry *new_dentry,
++		 struct vfsmount *mnt, const __u8 replace)
++{
++	struct name_entry *matchn;
++	struct inodev_entry *inodev;
++	struct inode *inode = new_dentry->d_inode;
++	u64 old_ino = __get_ino(old_dentry);
++	dev_t old_dev = __get_dev(old_dentry);
++
++	/* vfs_rename swaps the name and parent link for old_dentry and
++	   new_dentry
++	   at this point, old_dentry has the new name, parent link, and inode
++	   for the renamed file
++	   if a file is being replaced by a rename, new_dentry has the inode
++	   and name for the replaced file
++	*/
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return;
++
++	preempt_disable();
++	matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt));
++
++	/* we wouldn't have to check d_inode if it weren't for
++	   NFS silly-renaming
++	 */
++
++	write_lock(&gr_inode_lock);
++	if (unlikely(replace && inode)) {
++		u64 new_ino = __get_ino(new_dentry);
++		dev_t new_dev = __get_dev(new_dentry);
++
++		inodev = lookup_inodev_entry(new_ino, new_dev);
++		if (inodev != NULL && ((inode->i_nlink <= 1) || S_ISDIR(inode->i_mode)))
++			do_handle_delete(inodev, new_ino, new_dev);
++	}
++
++	inodev = lookup_inodev_entry(old_ino, old_dev);
++	if (inodev != NULL && ((old_dentry->d_inode->i_nlink <= 1) || S_ISDIR(old_dentry->d_inode->i_mode)))
++		do_handle_delete(inodev, old_ino, old_dev);
++
++	if (unlikely((unsigned long)matchn))
++		do_handle_create(matchn, old_dentry, mnt);
++
++	write_unlock(&gr_inode_lock);
++	preempt_enable();
++
++	return;
++}
++
++#if defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC)
++static const unsigned long res_learn_bumps[GR_NLIMITS] = {
++	[RLIMIT_CPU] = GR_RLIM_CPU_BUMP,
++	[RLIMIT_FSIZE] = GR_RLIM_FSIZE_BUMP,
++	[RLIMIT_DATA] = GR_RLIM_DATA_BUMP,
++	[RLIMIT_STACK] = GR_RLIM_STACK_BUMP,
++	[RLIMIT_CORE] = GR_RLIM_CORE_BUMP,
++	[RLIMIT_RSS] = GR_RLIM_RSS_BUMP,
++	[RLIMIT_NPROC] = GR_RLIM_NPROC_BUMP,
++	[RLIMIT_NOFILE] = GR_RLIM_NOFILE_BUMP,
++	[RLIMIT_MEMLOCK] = GR_RLIM_MEMLOCK_BUMP,
++	[RLIMIT_AS] = GR_RLIM_AS_BUMP,
++	[RLIMIT_LOCKS] = GR_RLIM_LOCKS_BUMP,
++	[RLIMIT_SIGPENDING] = GR_RLIM_SIGPENDING_BUMP,
++	[RLIMIT_MSGQUEUE] = GR_RLIM_MSGQUEUE_BUMP,
++	[RLIMIT_NICE] = GR_RLIM_NICE_BUMP,
++	[RLIMIT_RTPRIO] = GR_RLIM_RTPRIO_BUMP,
++	[RLIMIT_RTTIME] = GR_RLIM_RTTIME_BUMP
++};
++
++void
++gr_learn_resource(const struct task_struct *task,
++		  const int res, const unsigned long wanted, const int gt)
++{
++	struct acl_subject_label *acl;
++	const struct cred *cred;
++
++	if (unlikely((gr_status & GR_READY) &&
++		     task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))))
++		goto skip_reslog;
++
++	gr_log_resource(task, res, wanted, gt);
++skip_reslog:
++
++	if (unlikely(!(gr_status & GR_READY) || !wanted || res >= GR_NLIMITS))
++		return;
++
++	acl = task->acl;
++
++	if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) ||
++		   !(acl->resmask & (1U << (unsigned short) res))))
++		return;
++
++	if (wanted >= acl->res[res].rlim_cur) {
++		unsigned long res_add;
++
++		res_add = wanted + res_learn_bumps[res];
++
++		acl->res[res].rlim_cur = res_add;
++
++		if (wanted > acl->res[res].rlim_max)
++			acl->res[res].rlim_max = res_add;
++
++		/* only log the subject filename, since resource logging is supported for
++		   single-subject learning only */
++		rcu_read_lock();
++		cred = __task_cred(task);
++		security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
++			       task->role->roletype, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid), acl->filename,
++			       acl->filename, acl->res[res].rlim_cur, acl->res[res].rlim_max,
++			       "", (unsigned long) res, &task->signal->saved_ip);
++		rcu_read_unlock();
++	}
++
++	return;
++}
++EXPORT_SYMBOL_GPL(gr_learn_resource);
++#endif
++
++#if defined(CONFIG_PAX_HAVE_ACL_FLAGS) && (defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR))
++void
++pax_set_initial_flags(struct linux_binprm *bprm)
++{
++	struct task_struct *task = current;
++        struct acl_subject_label *proc;
++	unsigned long flags;
++
++        if (unlikely(!(gr_status & GR_READY)))
++                return;
++
++	flags = pax_get_flags(task);
++
++        proc = task->acl;
++
++	if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC)
++		flags &= ~MF_PAX_PAGEEXEC;
++	if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC)
++		flags &= ~MF_PAX_SEGMEXEC;
++	if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP)
++		flags &= ~MF_PAX_RANDMMAP;
++	if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP)
++		flags &= ~MF_PAX_EMUTRAMP;
++	if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT)
++		flags &= ~MF_PAX_MPROTECT;
++
++	if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC)
++		flags |= MF_PAX_PAGEEXEC;
++	if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC)
++		flags |= MF_PAX_SEGMEXEC;
++	if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP)
++		flags |= MF_PAX_RANDMMAP;
++	if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP)
++		flags |= MF_PAX_EMUTRAMP;
++	if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT)
++		flags |= MF_PAX_MPROTECT;
++
++	pax_set_flags(task, flags);
++
++        return;
++}
++#endif
++
++int
++gr_handle_proc_ptrace(struct task_struct *task)
++{
++	struct file *filp;
++	struct task_struct *tmp = task;
++	struct task_struct *curtemp = current;
++	__u32 retmode;
++
++#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++#endif
++
++	read_lock(&tasklist_lock);
++	read_lock(&grsec_exec_file_lock);
++	filp = task->exec_file;
++
++	while (task_pid_nr(tmp) > 0) {
++		if (tmp == curtemp)
++			break;
++		tmp = tmp->real_parent;
++	}
++
++	if (!filp || (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
++				((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE))))) {
++		read_unlock(&grsec_exec_file_lock);
++		read_unlock(&tasklist_lock);
++		return 1;
++	}
++
++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
++	if (!(gr_status & GR_READY)) {
++		read_unlock(&grsec_exec_file_lock);
++		read_unlock(&tasklist_lock);
++		return 0;
++	}
++#endif
++
++	retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt);
++	read_unlock(&grsec_exec_file_lock);
++	read_unlock(&tasklist_lock);
++
++	if (retmode & GR_NOPTRACE)
++		return 1;
++
++	if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD)
++	    && (current->acl != task->acl || (current->acl != current->role->root_label
++	    && task_pid_nr(current) != task_pid_nr(task))))
++		return 1;
++
++	return 0;
++}
++
++void task_grsec_rbac(struct seq_file *m, struct task_struct *p)
++{
++	if (unlikely(!(gr_status & GR_READY)))
++		return;
++
++	if (!(current->role->roletype & GR_ROLE_GOD))
++		return;
++
++	seq_printf(m, "RBAC:\t%.64s:%c:%.950s\n",
++			p->role->rolename, gr_task_roletype_to_char(p),
++			p->acl->filename);
++}
++
++int
++gr_handle_ptrace(struct task_struct *task, const long request)
++{
++	struct task_struct *tmp = task;
++	struct task_struct *curtemp = current;
++	__u32 retmode;
++
++#ifndef CONFIG_GRKERNSEC_HARDEN_PTRACE
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++#endif
++	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
++		read_lock(&tasklist_lock);
++		while (task_pid_nr(tmp) > 0) {
++			if (tmp == curtemp)
++				break;
++			tmp = tmp->real_parent;
++		}
++
++		if (task_pid_nr(tmp) == 0 && ((grsec_enable_harden_ptrace && gr_is_global_nonroot(current_uid()) && !(gr_status & GR_READY)) ||
++					((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE)))) {
++			read_unlock(&tasklist_lock);
++			gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
++			return 1;
++		}
++		read_unlock(&tasklist_lock);
++	}
++
++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
++	if (!(gr_status & GR_READY))
++		return 0;
++#endif
++
++	read_lock(&grsec_exec_file_lock);
++	if (unlikely(!task->exec_file)) {
++		read_unlock(&grsec_exec_file_lock);
++		return 0;
++	}
++
++	retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt);
++	read_unlock(&grsec_exec_file_lock);
++
++	if (retmode & GR_NOPTRACE) {
++		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
++		return 1;
++	}
++		
++	if (retmode & GR_PTRACERD) {
++		switch (request) {
++		case PTRACE_SEIZE:
++		case PTRACE_POKETEXT:
++		case PTRACE_POKEDATA:
++		case PTRACE_POKEUSR:
++#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
++		case PTRACE_SETREGS:
++		case PTRACE_SETFPREGS:
++#endif
++#ifdef CONFIG_X86
++		case PTRACE_SETFPXREGS:
++#endif
++#ifdef CONFIG_ALTIVEC
++		case PTRACE_SETVRREGS:
++#endif
++			return 1;
++		default:
++			return 0;
++		}
++	} else if (!(current->acl->mode & GR_POVERRIDE) &&
++		   !(current->role->roletype & GR_ROLE_GOD) &&
++		   (current->acl != task->acl)) {
++		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
++		return 1;
++	}
++
++	return 0;
++}
++
++static int is_writable_mmap(const struct file *filp)
++{
++	struct task_struct *task = current;
++	struct acl_object_label *obj, *obj2;
++
++	if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) &&
++	    !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode) && (filp->f_path.mnt != shm_mnt || (filp->f_path.dentry->d_inode->i_nlink > 0))) {
++		obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, running_polstate.default_role->root_label);
++		obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt,
++				     task->role->root_label);
++		if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) {
++			gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt);
++			return 1;
++		}
++	}
++	return 0;
++}
++
++int
++gr_acl_handle_mmap(const struct file *file, const unsigned long prot)
++{
++	__u32 mode;
++
++	if (unlikely(!file || !(prot & PROT_EXEC)))
++		return 1;
++
++	if (is_writable_mmap(file))
++		return 0;
++
++	mode =
++	    gr_search_file(file->f_path.dentry,
++			   GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
++			   file->f_path.mnt);
++
++	if (!gr_tpe_allow(file))
++		return 0;
++
++	if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++		return 0;
++	} else if (unlikely(!(mode & GR_EXEC))) {
++		return 0;
++	} else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
++		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++		return 1;
++	}
++
++	return 1;
++}
++
++int
++gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
++{
++	__u32 mode;
++
++	if (unlikely(!file || !(prot & PROT_EXEC)))
++		return 1;
++
++	if (is_writable_mmap(file))
++		return 0;
++
++	mode =
++	    gr_search_file(file->f_path.dentry,
++			   GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS,
++			   file->f_path.mnt);
++
++	if (!gr_tpe_allow(file))
++		return 0;
++
++	if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++		return 0;
++	} else if (unlikely(!(mode & GR_EXEC))) {
++		return 0;
++	} else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) {
++		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt);
++		return 1;
++	}
++
++	return 1;
++}
++
++void
++gr_acl_handle_psacct(struct task_struct *task, const long code)
++{
++	unsigned long runtime, cputime;
++	cputime_t utime, stime;
++	unsigned int wday, cday;
++	__u8 whr, chr;
++	__u8 wmin, cmin;
++	__u8 wsec, csec;
++	struct timespec timeval;
++
++	if (unlikely(!(gr_status & GR_READY) || !task->acl ||
++		     !(task->acl->mode & GR_PROCACCT)))
++		return;
++
++	do_posix_clock_monotonic_gettime(&timeval);
++	runtime = timeval.tv_sec - task->start_time.tv_sec;
++	wday = runtime / (60 * 60 * 24);
++	runtime -= wday * (60 * 60 * 24);
++	whr = runtime / (60 * 60);
++	runtime -= whr * (60 * 60);
++	wmin = runtime / 60;
++	runtime -= wmin * 60;
++	wsec = runtime;
++
++	task_cputime(task, &utime, &stime);
++	cputime = cputime_to_secs(utime + stime);
++	cday = cputime / (60 * 60 * 24);
++	cputime -= cday * (60 * 60 * 24);
++	chr = cputime / (60 * 60);
++	cputime -= chr * (60 * 60);
++	cmin = cputime / 60;
++	cputime -= cmin * 60;
++	csec = cputime;
++
++	gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code);
++
++	return;
++}
++
++#ifdef CONFIG_TASKSTATS
++int gr_is_taskstats_denied(int pid)
++{
++	struct task_struct *task;
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	const struct cred *cred;
++#endif
++	int ret = 0;
++
++	/* restrict taskstats viewing to un-chrooted root users
++	   who have the 'view' subject flag if the RBAC system is enabled
++	*/
++
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++	task = find_task_by_vpid(pid);
++	if (task) {
++#ifdef CONFIG_GRKERNSEC_CHROOT
++		if (proc_is_chrooted(task))
++			ret = -EACCES;
++#endif
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++		cred = __task_cred(task);
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++		if (gr_is_global_nonroot(cred->uid))
++			ret = -EACCES;
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++		if (gr_is_global_nonroot(cred->uid) && !groups_search(cred->group_info, grsec_proc_gid))
++			ret = -EACCES;
++#endif
++#endif
++		if (gr_status & GR_READY) {
++			if (!(task->acl->mode & GR_VIEW))
++				ret = -EACCES;
++		}
++	} else
++		ret = -ENOENT;
++
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++
++	return ret;
++}
++#endif
++
++/* AUXV entries are filled via a descendant of search_binary_handler
++   after we've already applied the subject for the target
++*/
++int gr_acl_enable_at_secure(void)
++{
++	if (unlikely(!(gr_status & GR_READY)))
++		return 0;
++
++	if (current->acl->mode & GR_ATSECURE)
++		return 1;
++
++	return 0;
++}
++	
++int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const u64 ino)
++{
++	struct task_struct *task = current;
++	struct dentry *dentry = file->f_path.dentry;
++	struct vfsmount *mnt = file->f_path.mnt;
++	struct acl_object_label *obj, *tmp;
++	struct acl_subject_label *subj;
++	unsigned int bufsize;
++	int is_not_root;
++	char *path;
++	dev_t dev = __get_dev(dentry);
++
++	if (unlikely(!(gr_status & GR_READY)))
++		return 1;
++
++	if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN))
++		return 1;
++
++	/* ignore Eric Biederman */
++	if (IS_PRIVATE(dentry->d_inode))
++		return 1;
++
++	subj = task->acl;
++	read_lock(&gr_inode_lock);
++	do {
++		obj = lookup_acl_obj_label(ino, dev, subj);
++		if (obj != NULL) {
++			read_unlock(&gr_inode_lock);
++			return (obj->mode & GR_FIND) ? 1 : 0;
++		}
++	} while ((subj = subj->parent_subject));
++	read_unlock(&gr_inode_lock);
++	
++	/* this is purely an optimization since we're looking for an object
++	   for the directory we're doing a readdir on
++	   if it's possible for any globbed object to match the entry we're
++	   filling into the directory, then the object we find here will be
++	   an anchor point with attached globbed objects
++	*/
++	obj = chk_obj_label_noglob(dentry, mnt, task->acl);
++	if (obj->globbed == NULL)
++		return (obj->mode & GR_FIND) ? 1 : 0;
++
++	is_not_root = ((obj->filename[0] == '/') &&
++		   (obj->filename[1] == '\0')) ? 0 : 1;
++	bufsize = PAGE_SIZE - namelen - is_not_root;
++
++	/* check bufsize > PAGE_SIZE || bufsize == 0 */
++	if (unlikely((bufsize - 1) > (PAGE_SIZE - 1)))
++		return 1;
++
++	preempt_disable();
++	path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()),
++			   bufsize);
++
++	bufsize = strlen(path);
++
++	/* if base is "/", don't append an additional slash */
++	if (is_not_root)
++		*(path + bufsize) = '/';
++	memcpy(path + bufsize + is_not_root, name, namelen);
++	*(path + bufsize + namelen + is_not_root) = '\0';
++
++	tmp = obj->globbed;
++	while (tmp) {
++		if (!glob_match(tmp->filename, path)) {
++			preempt_enable();
++			return (tmp->mode & GR_FIND) ? 1 : 0;
++		}
++		tmp = tmp->next;
++	}
++	preempt_enable();
++	return (obj->mode & GR_FIND) ? 1 : 0;
++}
++
++void gr_put_exec_file(struct task_struct *task)
++{
++	struct file *filp;  
++
++	write_lock(&grsec_exec_file_lock);
++	filp = task->exec_file;   
++	task->exec_file = NULL;
++	write_unlock(&grsec_exec_file_lock);
++
++	if (filp)
++		fput(filp);
++
++	return;
++}
++
++
++#ifdef CONFIG_NETFILTER_XT_MATCH_GRADM_MODULE
++EXPORT_SYMBOL_GPL(gr_acl_is_enabled);
++#endif
++#ifdef CONFIG_SECURITY
++EXPORT_SYMBOL_GPL(gr_check_user_change);
++EXPORT_SYMBOL_GPL(gr_check_group_change);
++#endif
++
+diff --git a/grsecurity/gracl_alloc.c b/grsecurity/gracl_alloc.c
+new file mode 100644
+index 0000000..9adc75c
+--- /dev/null
++++ b/grsecurity/gracl_alloc.c
+@@ -0,0 +1,105 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++
++static struct gr_alloc_state __current_alloc_state = { 1, 1, NULL };
++struct gr_alloc_state *current_alloc_state = &__current_alloc_state;
++
++static int
++alloc_pop(void)
++{
++	if (current_alloc_state->alloc_stack_next == 1)
++		return 0;
++
++	kfree(current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 2]);
++
++	current_alloc_state->alloc_stack_next--;
++
++	return 1;
++}
++
++static int
++alloc_push(void *buf)
++{
++	if (current_alloc_state->alloc_stack_next >= current_alloc_state->alloc_stack_size)
++		return 1;
++
++	current_alloc_state->alloc_stack[current_alloc_state->alloc_stack_next - 1] = buf;
++
++	current_alloc_state->alloc_stack_next++;
++
++	return 0;
++}
++
++void *
++acl_alloc(unsigned long len)
++{
++	void *ret = NULL;
++
++	if (!len || len > PAGE_SIZE)
++		goto out;
++
++	ret = kmalloc(len, GFP_KERNEL);
++
++	if (ret) {
++		if (alloc_push(ret)) {
++			kfree(ret);
++			ret = NULL;
++		}
++	}
++
++out:
++	return ret;
++}
++
++void *
++acl_alloc_num(unsigned long num, unsigned long len)
++{
++	if (!len || (num > (PAGE_SIZE / len)))
++		return NULL;
++
++	return acl_alloc(num * len);
++}
++
++void
++acl_free_all(void)
++{
++	if (!current_alloc_state->alloc_stack)
++		return;
++
++	while (alloc_pop()) ;
++
++	if (current_alloc_state->alloc_stack) {
++		if ((current_alloc_state->alloc_stack_size * sizeof (void *)) <= PAGE_SIZE)
++			kfree(current_alloc_state->alloc_stack);
++		else
++			vfree(current_alloc_state->alloc_stack);
++	}
++
++	current_alloc_state->alloc_stack = NULL;
++	current_alloc_state->alloc_stack_size = 1;
++	current_alloc_state->alloc_stack_next = 1;
++
++	return;
++}
++
++int
++acl_alloc_stack_init(unsigned long size)
++{
++	if ((size * sizeof (void *)) <= PAGE_SIZE)
++		current_alloc_state->alloc_stack =
++		    (void **) kmalloc(size * sizeof (void *), GFP_KERNEL);
++	else
++		current_alloc_state->alloc_stack = (void **) vmalloc(size * sizeof (void *));
++
++	current_alloc_state->alloc_stack_size = size;
++	current_alloc_state->alloc_stack_next = 1;
++
++	if (!current_alloc_state->alloc_stack)
++		return 0;
++	else
++		return 1;
++}
+diff --git a/grsecurity/gracl_cap.c b/grsecurity/gracl_cap.c
+new file mode 100644
+index 0000000..1a94c11
+--- /dev/null
++++ b/grsecurity/gracl_cap.c
+@@ -0,0 +1,127 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++extern const char *captab_log[];
++extern int captab_log_entries;
++
++int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap)
++{
++	struct acl_subject_label *curracl;
++
++	if (!gr_acl_is_enabled())
++		return 1;
++
++	curracl = task->acl;
++
++	if (curracl->mode & (GR_LEARN | GR_INHERITLEARN)) {
++		security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename,
++			       task->role->roletype, GR_GLOBAL_UID(cred->uid),
++			       GR_GLOBAL_GID(cred->gid), task->exec_file ?
++			       gr_to_filename(task->exec_file->f_path.dentry,
++			       task->exec_file->f_path.mnt) : curracl->filename,
++			       curracl->filename, 0UL,
++			       0UL, "", (unsigned long) cap, &task->signal->saved_ip);
++		return 1;
++	}
++
++	return 0;
++}
++
++int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
++{
++	struct acl_subject_label *curracl;
++	kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
++	kernel_cap_t cap_audit = __cap_empty_set;
++
++	if (!gr_acl_is_enabled())
++		return 1;
++
++	curracl = task->acl;
++
++	cap_drop = curracl->cap_lower;
++	cap_mask = curracl->cap_mask;
++	cap_audit = curracl->cap_invert_audit;
++
++	while ((curracl = curracl->parent_subject)) {
++		/* if the cap isn't specified in the current computed mask but is specified in the
++		   current level subject, and is lowered in the current level subject, then add
++		   it to the set of dropped capabilities
++		   otherwise, add the current level subject's mask to the current computed mask
++		 */
++		if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
++			cap_raise(cap_mask, cap);
++			if (cap_raised(curracl->cap_lower, cap))
++				cap_raise(cap_drop, cap);
++			if (cap_raised(curracl->cap_invert_audit, cap))
++				cap_raise(cap_audit, cap);
++		}
++	}
++
++	if (!cap_raised(cap_drop, cap)) {
++		if (cap_raised(cap_audit, cap))
++			gr_log_cap(GR_DO_AUDIT, GR_CAP_ACL_MSG2, task, captab_log[cap]);
++		return 1;
++	}
++
++	/* only learn the capability use if the process has the capability in the
++	   general case, the two uses in sys.c of gr_learn_cap are an exception
++	   to this rule to ensure any role transition involves what the full-learned
++	   policy believes in a privileged process
++	*/
++	if (cap_raised(cred->cap_effective, cap) && gr_learn_cap(task, cred, cap))
++		return 1;
++
++	if ((cap >= 0) && (cap < captab_log_entries) && cap_raised(cred->cap_effective, cap) && !cap_raised(cap_audit, cap))
++		gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]);
++
++	return 0;
++}
++
++int
++gr_acl_is_capable(const int cap)
++{
++	return gr_task_acl_is_capable(current, current_cred(), cap);
++}
++
++int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap)
++{
++	struct acl_subject_label *curracl;
++	kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set;
++
++	if (!gr_acl_is_enabled())
++		return 1;
++
++	curracl = task->acl;
++
++	cap_drop = curracl->cap_lower;
++	cap_mask = curracl->cap_mask;
++
++	while ((curracl = curracl->parent_subject)) {
++		/* if the cap isn't specified in the current computed mask but is specified in the
++		   current level subject, and is lowered in the current level subject, then add
++		   it to the set of dropped capabilities
++		   otherwise, add the current level subject's mask to the current computed mask
++		 */
++		if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) {
++			cap_raise(cap_mask, cap);
++			if (cap_raised(curracl->cap_lower, cap))
++				cap_raise(cap_drop, cap);
++		}
++	}
++
++	if (!cap_raised(cap_drop, cap))
++		return 1;
++
++	return 0;
++}
++
++int
++gr_acl_is_capable_nolog(const int cap)
++{
++	return gr_task_acl_is_capable_nolog(current, cap);
++}
++
+diff --git a/grsecurity/gracl_compat.c b/grsecurity/gracl_compat.c
+new file mode 100644
+index 0000000..a43dd06
+--- /dev/null
++++ b/grsecurity/gracl_compat.c
+@@ -0,0 +1,269 @@
++#include <linux/kernel.h>
++#include <linux/gracl.h>
++#include <linux/compat.h>
++#include <linux/gracl_compat.h>
++
++#include <asm/uaccess.h>
++
++int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap)
++{
++	struct gr_arg_wrapper_compat uwrapcompat;
++
++        if (copy_from_user(&uwrapcompat, buf, sizeof(uwrapcompat)))
++                return -EFAULT;
++
++        if ((uwrapcompat.version != GRSECURITY_VERSION) ||
++	    (uwrapcompat.size != sizeof(struct gr_arg_compat)))  
++                return -EINVAL;
++
++	uwrap->arg = compat_ptr(uwrapcompat.arg);
++	uwrap->version = uwrapcompat.version;
++	uwrap->size = sizeof(struct gr_arg);
++
++        return 0;
++}
++
++int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg)
++{
++	struct gr_arg_compat argcompat;
++
++        if (copy_from_user(&argcompat, buf, sizeof(argcompat)))
++                return -EFAULT;
++
++	arg->role_db.r_table = compat_ptr(argcompat.role_db.r_table);
++	arg->role_db.num_pointers = argcompat.role_db.num_pointers;
++	arg->role_db.num_roles = argcompat.role_db.num_roles;
++	arg->role_db.num_domain_children = argcompat.role_db.num_domain_children;
++	arg->role_db.num_subjects = argcompat.role_db.num_subjects;
++	arg->role_db.num_objects = argcompat.role_db.num_objects;
++
++	memcpy(&arg->pw, &argcompat.pw, sizeof(arg->pw));
++	memcpy(&arg->salt, &argcompat.salt, sizeof(arg->salt));
++	memcpy(&arg->sum, &argcompat.sum, sizeof(arg->sum));
++	memcpy(&arg->sp_role, &argcompat.sp_role, sizeof(arg->sp_role));
++	arg->sprole_pws = compat_ptr(argcompat.sprole_pws);
++	arg->segv_device = argcompat.segv_device;
++	arg->segv_inode = argcompat.segv_inode;
++	arg->segv_uid = argcompat.segv_uid;
++	arg->num_sprole_pws = argcompat.num_sprole_pws;
++	arg->mode = argcompat.mode;
++
++	return 0;
++}
++
++int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp)
++{
++	struct acl_object_label_compat objcompat;
++
++	if (copy_from_user(&objcompat, userp, sizeof(objcompat)))
++                return -EFAULT;
++
++	obj->filename = compat_ptr(objcompat.filename);
++	obj->inode = objcompat.inode;
++	obj->device = objcompat.device;
++	obj->mode = objcompat.mode;
++
++	obj->nested = compat_ptr(objcompat.nested);
++	obj->globbed = compat_ptr(objcompat.globbed);
++
++	obj->prev = compat_ptr(objcompat.prev);
++	obj->next = compat_ptr(objcompat.next);
++
++	return 0;
++}
++
++int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp)
++{
++	unsigned int i;
++	struct acl_subject_label_compat subjcompat;
++
++	if (copy_from_user(&subjcompat, userp, sizeof(subjcompat)))
++                return -EFAULT;
++
++	subj->filename = compat_ptr(subjcompat.filename);
++	subj->inode = subjcompat.inode;
++	subj->device = subjcompat.device;
++	subj->mode = subjcompat.mode;
++	subj->cap_mask = subjcompat.cap_mask;
++	subj->cap_lower = subjcompat.cap_lower;
++	subj->cap_invert_audit = subjcompat.cap_invert_audit;
++
++	for (i = 0; i < GR_NLIMITS; i++) {
++		if (subjcompat.res[i].rlim_cur == COMPAT_RLIM_INFINITY)
++			subj->res[i].rlim_cur = RLIM_INFINITY;
++		else
++			subj->res[i].rlim_cur = subjcompat.res[i].rlim_cur;
++		if (subjcompat.res[i].rlim_max == COMPAT_RLIM_INFINITY)
++			subj->res[i].rlim_max = RLIM_INFINITY;
++		else
++			subj->res[i].rlim_max = subjcompat.res[i].rlim_max;
++	}
++	subj->resmask = subjcompat.resmask;
++
++	subj->user_trans_type = subjcompat.user_trans_type;
++	subj->group_trans_type = subjcompat.group_trans_type;
++	subj->user_transitions = compat_ptr(subjcompat.user_transitions);
++	subj->group_transitions = compat_ptr(subjcompat.group_transitions);
++	subj->user_trans_num = subjcompat.user_trans_num;
++	subj->group_trans_num = subjcompat.group_trans_num;
++
++	memcpy(&subj->sock_families, &subjcompat.sock_families, sizeof(subj->sock_families));
++	memcpy(&subj->ip_proto, &subjcompat.ip_proto, sizeof(subj->ip_proto));
++	subj->ip_type = subjcompat.ip_type;
++	subj->ips = compat_ptr(subjcompat.ips);
++	subj->ip_num = subjcompat.ip_num;
++	subj->inaddr_any_override = subjcompat.inaddr_any_override;
++
++	subj->crashes = subjcompat.crashes;
++	subj->expires = subjcompat.expires;
++
++	subj->parent_subject = compat_ptr(subjcompat.parent_subject);
++	subj->hash = compat_ptr(subjcompat.hash);
++	subj->prev = compat_ptr(subjcompat.prev);
++	subj->next = compat_ptr(subjcompat.next);
++
++	subj->obj_hash = compat_ptr(subjcompat.obj_hash);
++	subj->obj_hash_size = subjcompat.obj_hash_size;
++	subj->pax_flags = subjcompat.pax_flags;
++
++	return 0;
++}
++
++int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp)
++{
++	struct acl_role_label_compat rolecompat;
++
++	if (copy_from_user(&rolecompat, userp, sizeof(rolecompat)))
++                return -EFAULT;
++
++	role->rolename = compat_ptr(rolecompat.rolename);
++	role->uidgid = rolecompat.uidgid;
++	role->roletype = rolecompat.roletype;
++
++	role->auth_attempts = rolecompat.auth_attempts;
++	role->expires = rolecompat.expires;
++
++	role->root_label = compat_ptr(rolecompat.root_label);
++	role->hash = compat_ptr(rolecompat.hash);
++
++	role->prev = compat_ptr(rolecompat.prev);
++	role->next = compat_ptr(rolecompat.next);
++
++	role->transitions = compat_ptr(rolecompat.transitions);
++	role->allowed_ips = compat_ptr(rolecompat.allowed_ips);
++	role->domain_children = compat_ptr(rolecompat.domain_children);
++	role->domain_child_num = rolecompat.domain_child_num;
++
++	role->umask = rolecompat.umask;
++
++	role->subj_hash = compat_ptr(rolecompat.subj_hash);
++	role->subj_hash_size = rolecompat.subj_hash_size;
++
++	return 0;
++}
++
++int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
++{
++	struct role_allowed_ip_compat roleip_compat;
++
++	if (copy_from_user(&roleip_compat, userp, sizeof(roleip_compat)))
++                return -EFAULT;
++
++	roleip->addr = roleip_compat.addr;
++	roleip->netmask = roleip_compat.netmask;
++
++	roleip->prev = compat_ptr(roleip_compat.prev);
++	roleip->next = compat_ptr(roleip_compat.next);
++
++	return 0;
++}
++
++int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp)
++{
++	struct role_transition_compat trans_compat;
++
++	if (copy_from_user(&trans_compat, userp, sizeof(trans_compat)))
++                return -EFAULT;
++
++	trans->rolename = compat_ptr(trans_compat.rolename);
++
++	trans->prev = compat_ptr(trans_compat.prev);
++	trans->next = compat_ptr(trans_compat.next);
++
++	return 0;
++
++}
++
++int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
++{
++	struct gr_hash_struct_compat hash_compat;
++
++	if (copy_from_user(&hash_compat, userp, sizeof(hash_compat)))
++                return -EFAULT;
++
++	hash->table = compat_ptr(hash_compat.table);
++	hash->nametable = compat_ptr(hash_compat.nametable);
++	hash->first = compat_ptr(hash_compat.first);
++
++	hash->table_size = hash_compat.table_size;
++	hash->used_size = hash_compat.used_size;
++
++	hash->type = hash_compat.type;
++
++	return 0;
++}
++
++int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp)
++{
++	compat_uptr_t ptrcompat;
++
++	if (copy_from_user(&ptrcompat, userp + (idx * sizeof(ptrcompat)), sizeof(ptrcompat)))
++                return -EFAULT;
++
++	*(void **)ptr = compat_ptr(ptrcompat);
++
++	return 0;
++}
++
++int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp)
++{
++	struct acl_ip_label_compat ip_compat;
++
++	if (copy_from_user(&ip_compat, userp, sizeof(ip_compat)))
++                return -EFAULT;
++
++	ip->iface = compat_ptr(ip_compat.iface);
++	ip->addr = ip_compat.addr;
++	ip->netmask = ip_compat.netmask;
++	ip->low = ip_compat.low;
++	ip->high = ip_compat.high;
++	ip->mode = ip_compat.mode;
++	ip->type = ip_compat.type;
++
++	memcpy(&ip->proto, &ip_compat.proto, sizeof(ip->proto));
++
++	ip->prev = compat_ptr(ip_compat.prev);
++	ip->next = compat_ptr(ip_compat.next);
++
++	return 0;
++}
++
++int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
++{
++	struct sprole_pw_compat pw_compat;
++
++	if (copy_from_user(&pw_compat, (const void *)userp + (sizeof(pw_compat) * idx), sizeof(pw_compat)))
++                return -EFAULT;
++
++	pw->rolename = compat_ptr(pw_compat.rolename);
++	memcpy(&pw->salt, pw_compat.salt, sizeof(pw->salt));
++	memcpy(&pw->sum, pw_compat.sum, sizeof(pw->sum));
++
++	return 0;
++}
++
++size_t get_gr_arg_wrapper_size_compat(void)
++{
++	return sizeof(struct gr_arg_wrapper_compat);
++}
++
+diff --git a/grsecurity/gracl_fs.c b/grsecurity/gracl_fs.c
+new file mode 100644
+index 0000000..4c7e00a
+--- /dev/null
++++ b/grsecurity/gracl_fs.c
+@@ -0,0 +1,439 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/types.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/stat.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/gracl.h>
++
++umode_t
++gr_acl_umask(void)
++{
++	if (unlikely(!gr_acl_is_enabled()))
++		return 0;
++
++	return current->role->umask;
++}
++
++__u32
++gr_acl_handle_hidden_file(const struct dentry * dentry,
++			  const struct vfsmount * mnt)
++{
++	__u32 mode;
++
++	if (unlikely(d_is_negative(dentry)))
++		return GR_FIND;
++
++	mode =
++	    gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt);
++
++	if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) {
++		gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
++		return mode;
++	} else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt);
++		return 0;
++	} else if (unlikely(!(mode & GR_FIND)))
++		return 0;
++
++	return GR_FIND;
++}
++
++__u32
++gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
++		   int acc_mode)
++{
++	__u32 reqmode = GR_FIND;
++	__u32 mode;
++
++	if (unlikely(d_is_negative(dentry)))
++		return reqmode;
++
++	if (acc_mode & MAY_APPEND)
++		reqmode |= GR_APPEND;
++	else if (acc_mode & MAY_WRITE)
++		reqmode |= GR_WRITE;
++	if ((acc_mode & MAY_READ) && !S_ISDIR(dentry->d_inode->i_mode))
++		reqmode |= GR_READ;
++
++	mode =
++	    gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
++			   mnt);
++
++	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
++		gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
++			       reqmode & GR_READ ? " reading" : "",
++			       reqmode & GR_WRITE ? " writing" : reqmode &
++			       GR_APPEND ? " appending" : "");
++		return reqmode;
++	} else
++	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
++	{
++		gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt,
++			       reqmode & GR_READ ? " reading" : "",
++			       reqmode & GR_WRITE ? " writing" : reqmode &
++			       GR_APPEND ? " appending" : "");
++		return 0;
++	} else if (unlikely((mode & reqmode) != reqmode))
++		return 0;
++
++	return reqmode;
++}
++
++__u32
++gr_acl_handle_creat(const struct dentry * dentry,
++		    const struct dentry * p_dentry,
++		    const struct vfsmount * p_mnt, int open_flags, int acc_mode,
++		    const int imode)
++{
++	__u32 reqmode = GR_WRITE | GR_CREATE;
++	__u32 mode;
++
++	if (acc_mode & MAY_APPEND)
++		reqmode |= GR_APPEND;
++	// if a directory was required or the directory already exists, then
++	// don't count this open as a read
++	if ((acc_mode & MAY_READ) &&
++	    !((open_flags & O_DIRECTORY) || (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))))
++		reqmode |= GR_READ;
++	if ((open_flags & O_CREAT) &&
++	    ((imode & S_ISUID) || ((imode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
++		reqmode |= GR_SETID;
++
++	mode =
++	    gr_check_create(dentry, p_dentry, p_mnt,
++			    reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
++
++	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
++		gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
++			       reqmode & GR_READ ? " reading" : "",
++			       reqmode & GR_WRITE ? " writing" : reqmode &
++			       GR_APPEND ? " appending" : "");
++		return reqmode;
++	} else
++	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
++	{
++		gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt,
++			       reqmode & GR_READ ? " reading" : "",
++			       reqmode & GR_WRITE ? " writing" : reqmode &
++			       GR_APPEND ? " appending" : "");
++		return 0;
++	} else if (unlikely((mode & reqmode) != reqmode))
++		return 0;
++
++	return reqmode;
++}
++
++__u32
++gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt,
++		     const int fmode)
++{
++	__u32 mode, reqmode = GR_FIND;
++
++	if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode))
++		reqmode |= GR_EXEC;
++	if (fmode & S_IWOTH)
++		reqmode |= GR_WRITE;
++	if (fmode & S_IROTH)
++		reqmode |= GR_READ;
++
++	mode =
++	    gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS,
++			   mnt);
++
++	if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) {
++		gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
++			       reqmode & GR_READ ? " reading" : "",
++			       reqmode & GR_WRITE ? " writing" : "",
++			       reqmode & GR_EXEC ? " executing" : "");
++		return reqmode;
++	} else
++	    if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS)))
++	{
++		gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt,
++			       reqmode & GR_READ ? " reading" : "",
++			       reqmode & GR_WRITE ? " writing" : "",
++			       reqmode & GR_EXEC ? " executing" : "");
++		return 0;
++	} else if (unlikely((mode & reqmode) != reqmode))
++		return 0;
++
++	return reqmode;
++}
++
++static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt)
++{
++	__u32 mode;
++
++	mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt);
++
++	if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
++		gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt);
++		return mode;
++	} else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt);
++		return 0;
++	} else if (unlikely((mode & (reqmode)) != (reqmode)))
++		return 0;
++
++	return (reqmode);
++}
++
++__u32
++gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt,
++		     umode_t *modeptr)
++{
++	umode_t mode;
++
++	*modeptr &= ~gr_acl_umask();
++	mode = *modeptr;
++
++	if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode)))
++		return 1;
++
++	if (unlikely(dentry->d_inode && !S_ISDIR(dentry->d_inode->i_mode) &&
++		     ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))) {
++		return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID,
++				   GR_CHMOD_ACL_MSG);
++	} else {
++		return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG);
++	}
++}
++
++__u32
++gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_setxattr(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_SETXATTR_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_removexattr(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_WRITE, GR_REMOVEXATTR_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE,
++			   GR_UNIXCONNECT_ACL_MSG);
++}
++
++/* hardlinks require at minimum create and link permission,
++   any additional privilege required is based on the
++   privilege of the file being linked to
++*/
++__u32
++gr_acl_handle_link(const struct dentry * new_dentry,
++		   const struct dentry * parent_dentry,
++		   const struct vfsmount * parent_mnt,
++		   const struct dentry * old_dentry,
++		   const struct vfsmount * old_mnt, const struct filename *to)
++{
++	__u32 mode;
++	__u32 needmode = GR_CREATE | GR_LINK;
++	__u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK;
++
++	mode =
++	    gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry,
++			  old_mnt);
++
++	if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) {
++		gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
++		return mode;
++	} else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to->name);
++		return 0;
++	} else if (unlikely((mode & needmode) != needmode))
++		return 0;
++
++	return 1;
++}
++
++__u32
++gr_acl_handle_symlink(const struct dentry * new_dentry,
++		      const struct dentry * parent_dentry,
++		      const struct vfsmount * parent_mnt, const struct filename *from)
++{
++	__u32 needmode = GR_WRITE | GR_CREATE;
++	__u32 mode;
++
++	mode =
++	    gr_check_create(new_dentry, parent_dentry, parent_mnt,
++			    GR_CREATE | GR_AUDIT_CREATE |
++			    GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS);
++
++	if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) {
++		gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
++		return mode;
++	} else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from->name, new_dentry, parent_mnt);
++		return 0;
++	} else if (unlikely((mode & needmode) != needmode))
++		return 0;
++
++	return (GR_WRITE | GR_CREATE);
++}
++
++static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt)
++{
++	__u32 mode;
++
++	mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS);
++
++	if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) {
++		gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt);
++		return mode;
++	} else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) {
++		gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt);
++		return 0;
++	} else if (unlikely((mode & (reqmode)) != (reqmode)))
++		return 0;
++
++	return (reqmode);
++}
++
++__u32
++gr_acl_handle_mknod(const struct dentry * new_dentry,
++		    const struct dentry * parent_dentry,
++		    const struct vfsmount * parent_mnt,
++		    const int mode)
++{
++	__u32 reqmode = GR_WRITE | GR_CREATE;
++	if (unlikely((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))))
++		reqmode |= GR_SETID;
++
++	return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
++				  reqmode, GR_MKNOD_ACL_MSG);
++}
++
++__u32
++gr_acl_handle_mkdir(const struct dentry *new_dentry,
++		    const struct dentry *parent_dentry,
++		    const struct vfsmount *parent_mnt)
++{
++	return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt,
++				  GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG);
++}
++
++#define RENAME_CHECK_SUCCESS(old, new) \
++	(((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \
++	 ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)))
++
++int
++gr_acl_handle_rename(struct dentry *new_dentry,
++		     struct dentry *parent_dentry,
++		     const struct vfsmount *parent_mnt,
++		     struct dentry *old_dentry,
++		     struct inode *old_parent_inode,
++		     struct vfsmount *old_mnt, const struct filename *newname)
++{
++	__u32 comp1, comp2;
++	int error = 0;
++
++	if (unlikely(!gr_acl_is_enabled()))
++		return 0;
++
++	if (d_is_negative(new_dentry)) {
++		comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt,
++					GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ |
++					GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS);
++		comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE |
++				       GR_DELETE | GR_AUDIT_DELETE |
++				       GR_AUDIT_READ | GR_AUDIT_WRITE |
++				       GR_SUPPRESS, old_mnt);
++	} else {
++		comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE |
++				       GR_CREATE | GR_DELETE |
++				       GR_AUDIT_CREATE | GR_AUDIT_DELETE |
++				       GR_AUDIT_READ | GR_AUDIT_WRITE |
++				       GR_SUPPRESS, parent_mnt);
++		comp2 =
++		    gr_search_file(old_dentry,
++				   GR_READ | GR_WRITE | GR_AUDIT_READ |
++				   GR_DELETE | GR_AUDIT_DELETE |
++				   GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt);
++	}
++
++	if (RENAME_CHECK_SUCCESS(comp1, comp2) &&
++	    ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS)))
++		gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
++	else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS)
++		 && !(comp2 & GR_SUPPRESS)) {
++		gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname->name);
++		error = -EACCES;
++	} else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2)))
++		error = -EACCES;
++
++	return error;
++}
++
++void
++gr_acl_handle_exit(void)
++{
++	u16 id;
++	char *rolename;
++
++	if (unlikely(current->acl_sp_role && gr_acl_is_enabled() &&
++	    !(current->role->roletype & GR_ROLE_PERSIST))) {
++		id = current->acl_role_id;
++		rolename = current->role->rolename;
++		gr_set_acls(1);
++		gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id);
++	}
++
++	gr_put_exec_file(current);
++	return;
++}
++
++int
++gr_acl_handle_procpidmem(const struct task_struct *task)
++{
++	if (unlikely(!gr_acl_is_enabled()))
++		return 0;
++
++	if (task != current && (task->acl->mode & GR_PROTPROCFD) &&
++	    !(current->acl->mode & GR_POVERRIDE) &&
++	    !(current->role->roletype & GR_ROLE_GOD))
++		return -EACCES;
++
++	return 0;
++}
+diff --git a/grsecurity/gracl_ip.c b/grsecurity/gracl_ip.c
+new file mode 100644
+index 0000000..f056b81
+--- /dev/null
++++ b/grsecurity/gracl_ip.c
+@@ -0,0 +1,386 @@
++#include <linux/kernel.h>
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <net/sock.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/skbuff.h>
++#include <linux/ip.h>
++#include <linux/udp.h>
++#include <linux/types.h>
++#include <linux/sched.h>
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++#define GR_BIND			0x01
++#define GR_CONNECT		0x02
++#define GR_INVERT		0x04
++#define GR_BINDOVERRIDE		0x08
++#define GR_CONNECTOVERRIDE	0x10
++#define GR_SOCK_FAMILY		0x20
++
++static const char * gr_protocols[IPPROTO_MAX] = {
++	"ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt",
++	"egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet",
++	"chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1",
++	"trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp",
++	"merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++",
++	"il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre",
++	"mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile",
++	"tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63",
++	"sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv",
++	"cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak", 
++	"iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf", 
++	"eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp",
++	"scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim",
++	"aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip",
++	"vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp",
++	"uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup",
++	"sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135",
++	"unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143",
++	"unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151",
++	"unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159",
++	"unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167",
++	"unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175",
++	"unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183",
++	"unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191",
++	"unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199",
++	"unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207",
++	"unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215",
++	"unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223",
++	"unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231",
++	"unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239",
++	"unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247",
++	"unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255",
++	};
++
++static const char * gr_socktypes[SOCK_MAX] = {
++	"unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6", 
++	"unknown:7", "unknown:8", "unknown:9", "packet"
++	};
++
++static const char * gr_sockfamilies[AF_MAX+1] = {
++	"unspec", "unix", "inet", "ax25", "ipx", "appletalk", "netrom", "bridge", "atmpvc", "x25",
++	"inet6", "rose", "decnet", "netbeui", "security", "key", "netlink", "packet", "ash",
++	"econet", "atmsvc", "rds", "sna", "irda", "ppox", "wanpipe", "llc", "fam_27", "fam_28",
++	"tipc", "bluetooth", "iucv", "rxrpc", "isdn", "phonet", "ieee802154", "ciaf"
++	};
++
++const char *
++gr_proto_to_name(unsigned char proto)
++{
++	return gr_protocols[proto];
++}
++
++const char *
++gr_socktype_to_name(unsigned char type)
++{
++	return gr_socktypes[type];
++}
++
++const char *
++gr_sockfamily_to_name(unsigned char family)
++{
++	return gr_sockfamilies[family];
++}
++
++extern const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
++
++int
++gr_search_socket(const int domain, const int type, const int protocol)
++{
++	struct acl_subject_label *curr;
++	const struct cred *cred = current_cred();
++
++	if (unlikely(!gr_acl_is_enabled()))
++		goto exit;
++
++	if ((domain < 0) || (type < 0) || (protocol < 0) ||
++	    (domain >= AF_MAX) || (type >= SOCK_MAX) || (protocol >= IPPROTO_MAX))
++		goto exit;	// let the kernel handle it
++
++	curr = current->acl;
++
++	if (curr->sock_families[domain / 32] & (1U << (domain % 32))) {
++		/* the family is allowed, if this is PF_INET allow it only if
++		   the extra sock type/protocol checks pass */
++		if (domain == PF_INET)
++			goto inet_check;
++		goto exit;
++	} else {
++		if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
++			__u32 fakeip = 0;
++			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
++				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
++				       gr_to_filename(current->exec_file->f_path.dentry,
++				       current->exec_file->f_path.mnt) :
++				       curr->filename, curr->filename,
++				       &fakeip, domain, 0, 0, GR_SOCK_FAMILY,
++				       &current->signal->saved_ip);
++			goto exit;
++		}
++		goto exit_fail;
++	}
++
++inet_check:
++	/* the rest of this checking is for IPv4 only */
++	if (!curr->ips)
++		goto exit;
++
++	if ((curr->ip_type & (1U << type)) &&
++	    (curr->ip_proto[protocol / 32] & (1U << (protocol % 32))))
++		goto exit;
++
++	if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
++		/* we don't place acls on raw sockets , and sometimes
++		   dgram/ip sockets are opened for ioctl and not
++		   bind/connect, so we'll fake a bind learn log */
++		if (type == SOCK_RAW || type == SOCK_PACKET) {
++			__u32 fakeip = 0;
++			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
++				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
++				       gr_to_filename(current->exec_file->f_path.dentry,
++				       current->exec_file->f_path.mnt) :
++				       curr->filename, curr->filename,
++				       &fakeip, 0, type,
++				       protocol, GR_CONNECT, &current->signal->saved_ip);
++		} else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) {
++			__u32 fakeip = 0;
++			security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++				       current->role->roletype, GR_GLOBAL_UID(cred->uid),
++				       GR_GLOBAL_GID(cred->gid), current->exec_file ?
++				       gr_to_filename(current->exec_file->f_path.dentry,
++				       current->exec_file->f_path.mnt) :
++				       curr->filename, curr->filename,
++				       &fakeip, 0, type,
++				       protocol, GR_BIND, &current->signal->saved_ip);
++		}
++		/* we'll log when they use connect or bind */
++		goto exit;
++	}
++
++exit_fail:
++	if (domain == PF_INET)
++		gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(domain), 
++			    gr_socktype_to_name(type), gr_proto_to_name(protocol));
++	else if (rcu_access_pointer(net_families[domain]) != NULL)
++		gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(domain), 
++			    gr_socktype_to_name(type), protocol);
++
++	return 0;
++exit:
++	return 1;
++}
++
++int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask)
++{
++	if ((ip->mode & mode) &&
++	    (ip_port >= ip->low) &&
++	    (ip_port <= ip->high) &&
++	    ((ntohl(ip_addr) & our_netmask) ==
++	     (ntohl(our_addr) & our_netmask))
++	    && (ip->proto[protocol / 32] & (1U << (protocol % 32)))
++	    && (ip->type & (1U << type))) {
++		if (ip->mode & GR_INVERT)
++			return 2; // specifically denied
++		else
++			return 1; // allowed
++	}
++
++	return 0; // not specifically allowed, may continue parsing
++}
++
++static int
++gr_search_connectbind(const int full_mode, struct sock *sk,
++		      struct sockaddr_in *addr, const int type)
++{
++	char iface[IFNAMSIZ] = {0};
++	struct acl_subject_label *curr;
++	struct acl_ip_label *ip;
++	struct inet_sock *isk;
++	struct net_device *dev;
++	struct in_device *idev;
++	unsigned long i;
++	int ret;
++	int mode = full_mode & (GR_BIND | GR_CONNECT);
++	__u32 ip_addr = 0;
++	__u32 our_addr;
++	__u32 our_netmask;
++	char *p;
++	__u16 ip_port = 0;
++	const struct cred *cred = current_cred();
++
++	if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET))
++		return 0;
++
++	curr = current->acl;
++	isk = inet_sk(sk);
++
++	/* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */
++	if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0)
++		addr->sin_addr.s_addr = curr->inaddr_any_override;
++	if ((full_mode & GR_CONNECT) && isk->inet_saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) {
++		struct sockaddr_in saddr;
++		int err;
++
++		saddr.sin_family = AF_INET;
++		saddr.sin_addr.s_addr = curr->inaddr_any_override;
++		saddr.sin_port = isk->inet_sport;
++
++		err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
++		if (err)
++			return err;
++
++		err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
++		if (err)
++			return err;
++	}
++
++	if (!curr->ips)
++		return 0;
++
++	ip_addr = addr->sin_addr.s_addr;
++	ip_port = ntohs(addr->sin_port);
++
++	if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) {
++		security_learn(GR_IP_LEARN_MSG, current->role->rolename,
++			       current->role->roletype, GR_GLOBAL_UID(cred->uid),
++			       GR_GLOBAL_GID(cred->gid), current->exec_file ?
++			       gr_to_filename(current->exec_file->f_path.dentry,
++			       current->exec_file->f_path.mnt) :
++			       curr->filename, curr->filename,
++			       &ip_addr, ip_port, type,
++			       sk->sk_protocol, mode, &current->signal->saved_ip);
++		return 0;
++	}
++
++	for (i = 0; i < curr->ip_num; i++) {
++		ip = *(curr->ips + i);
++		if (ip->iface != NULL) {
++			strncpy(iface, ip->iface, IFNAMSIZ - 1);
++			p = strchr(iface, ':');
++			if (p != NULL)
++				*p = '\0';
++			dev = dev_get_by_name(sock_net(sk), iface);
++			if (dev == NULL)
++				continue;
++			idev = in_dev_get(dev);
++			if (idev == NULL) {
++				dev_put(dev);
++				continue;
++			}
++			rcu_read_lock();
++			for_ifa(idev) {
++				if (!strcmp(ip->iface, ifa->ifa_label)) {
++					our_addr = ifa->ifa_address;
++					our_netmask = 0xffffffff;
++					ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
++					if (ret == 1) {
++						rcu_read_unlock();
++						in_dev_put(idev);
++						dev_put(dev);
++						return 0;
++					} else if (ret == 2) {
++						rcu_read_unlock();
++						in_dev_put(idev);
++						dev_put(dev);
++						goto denied;
++					}
++				}
++			} endfor_ifa(idev);
++			rcu_read_unlock();
++			in_dev_put(idev);
++			dev_put(dev);
++		} else {
++			our_addr = ip->addr;
++			our_netmask = ip->netmask;
++			ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask);
++			if (ret == 1)
++				return 0;
++			else if (ret == 2)
++				goto denied;
++		}
++	}
++
++denied:
++	if (mode == GR_BIND)
++		gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
++	else if (mode == GR_CONNECT)
++		gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, &ip_addr, ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol));
++
++	return -EACCES;
++}
++
++int
++gr_search_connect(struct socket *sock, struct sockaddr_in *addr)
++{
++	/* always allow disconnection of dgram sockets with connect */
++	if (addr->sin_family == AF_UNSPEC)
++		return 0;
++	return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type);
++}
++
++int
++gr_search_bind(struct socket *sock, struct sockaddr_in *addr)
++{
++	return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type);
++}
++
++int gr_search_listen(struct socket *sock)
++{
++	struct sock *sk = sock->sk;
++	struct sockaddr_in addr;
++
++	addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
++	addr.sin_port = inet_sk(sk)->inet_sport;
++
++	return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
++}
++
++int gr_search_accept(struct socket *sock)
++{
++	struct sock *sk = sock->sk;
++	struct sockaddr_in addr;
++
++	addr.sin_addr.s_addr = inet_sk(sk)->inet_saddr;
++	addr.sin_port = inet_sk(sk)->inet_sport;
++
++	return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type);
++}
++
++int
++gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr)
++{
++	if (addr)
++		return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM);
++	else {
++		struct sockaddr_in sin;
++		const struct inet_sock *inet = inet_sk(sk);
++
++		sin.sin_addr.s_addr = inet->inet_daddr;
++		sin.sin_port = inet->inet_dport;
++
++		return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
++	}
++}
++
++int
++gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb)
++{
++	struct sockaddr_in sin;
++
++	if (unlikely(skb->len < sizeof (struct udphdr)))
++		return 0;	// skip this packet
++
++	sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
++	sin.sin_port = udp_hdr(skb)->source;
++
++	return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM);
++}
+diff --git a/grsecurity/gracl_learn.c b/grsecurity/gracl_learn.c
+new file mode 100644
+index 0000000..25f54ef
+--- /dev/null
++++ b/grsecurity/gracl_learn.c
+@@ -0,0 +1,207 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/sched.h>
++#include <linux/poll.h>
++#include <linux/string.h>
++#include <linux/file.h>
++#include <linux/types.h>
++#include <linux/vmalloc.h>
++#include <linux/grinternal.h>
++
++extern ssize_t write_grsec_handler(struct file * file, const char __user * buf,
++				   size_t count, loff_t *ppos);
++extern int gr_acl_is_enabled(void);
++
++static DECLARE_WAIT_QUEUE_HEAD(learn_wait);
++static int gr_learn_attached;
++
++/* use a 512k buffer */
++#define LEARN_BUFFER_SIZE (512 * 1024)
++
++static DEFINE_SPINLOCK(gr_learn_lock);
++static DEFINE_MUTEX(gr_learn_user_mutex);
++
++/* we need to maintain two buffers, so that the kernel context of grlearn
++   uses a semaphore around the userspace copying, and the other kernel contexts
++   use a spinlock when copying into the buffer, since they cannot sleep
++*/
++static char *learn_buffer;
++static char *learn_buffer_user;
++static int learn_buffer_len;
++static int learn_buffer_user_len;
++
++static ssize_t
++read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos)
++{
++	DECLARE_WAITQUEUE(wait, current);
++	ssize_t retval = 0;
++
++	add_wait_queue(&learn_wait, &wait);
++	set_current_state(TASK_INTERRUPTIBLE);
++	do {
++		mutex_lock(&gr_learn_user_mutex);
++		spin_lock(&gr_learn_lock);
++		if (learn_buffer_len)
++			break;
++		spin_unlock(&gr_learn_lock);
++		mutex_unlock(&gr_learn_user_mutex);
++		if (file->f_flags & O_NONBLOCK) {
++			retval = -EAGAIN;
++			goto out;
++		}
++		if (signal_pending(current)) {
++			retval = -ERESTARTSYS;
++			goto out;
++		}
++
++		schedule();
++	} while (1);
++
++	memcpy(learn_buffer_user, learn_buffer, learn_buffer_len);
++	learn_buffer_user_len = learn_buffer_len;
++	retval = learn_buffer_len;
++	learn_buffer_len = 0;
++
++	spin_unlock(&gr_learn_lock);
++
++	if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len))
++		retval = -EFAULT;
++
++	mutex_unlock(&gr_learn_user_mutex);
++out:
++	set_current_state(TASK_RUNNING);
++	remove_wait_queue(&learn_wait, &wait);
++	return retval;
++}
++
++static unsigned int
++poll_learn(struct file * file, poll_table * wait)
++{
++	poll_wait(file, &learn_wait, wait);
++
++	if (learn_buffer_len)
++		return (POLLIN | POLLRDNORM);
++
++	return 0;
++}
++
++void
++gr_clear_learn_entries(void)
++{
++	char *tmp;
++
++	mutex_lock(&gr_learn_user_mutex);
++	spin_lock(&gr_learn_lock);
++	tmp = learn_buffer;
++	learn_buffer = NULL;
++	spin_unlock(&gr_learn_lock);
++	if (tmp)
++		vfree(tmp);
++	if (learn_buffer_user != NULL) {
++		vfree(learn_buffer_user);
++		learn_buffer_user = NULL;
++	}
++	learn_buffer_len = 0;
++	mutex_unlock(&gr_learn_user_mutex);
++
++	return;
++}
++
++void
++gr_add_learn_entry(const char *fmt, ...)
++{
++	va_list args;
++	unsigned int len;
++
++	if (!gr_learn_attached)
++		return;
++
++	spin_lock(&gr_learn_lock);
++
++	/* leave a gap at the end so we know when it's "full" but don't have to
++	   compute the exact length of the string we're trying to append
++	*/
++	if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) {
++		spin_unlock(&gr_learn_lock);
++		wake_up_interruptible(&learn_wait);
++		return;
++	}
++	if (learn_buffer == NULL) {
++		spin_unlock(&gr_learn_lock);
++		return;
++	}
++
++	va_start(args, fmt);
++	len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args);
++	va_end(args);
++
++	learn_buffer_len += len + 1;
++
++	spin_unlock(&gr_learn_lock);
++	wake_up_interruptible(&learn_wait);
++
++	return;
++}
++
++static int
++open_learn(struct inode *inode, struct file *file)
++{
++	if (file->f_mode & FMODE_READ && gr_learn_attached)
++		return -EBUSY;
++	if (file->f_mode & FMODE_READ) {
++		int retval = 0;
++		mutex_lock(&gr_learn_user_mutex);
++		if (learn_buffer == NULL)
++			learn_buffer = vmalloc(LEARN_BUFFER_SIZE);
++		if (learn_buffer_user == NULL)
++			learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE);
++		if (learn_buffer == NULL) {
++			retval = -ENOMEM;
++			goto out_error;
++		}
++		if (learn_buffer_user == NULL) {
++			retval = -ENOMEM;
++			goto out_error;
++		}
++		learn_buffer_len = 0;
++		learn_buffer_user_len = 0;
++		gr_learn_attached = 1;
++out_error:
++		mutex_unlock(&gr_learn_user_mutex);
++		return retval;
++	}
++	return 0;
++}
++
++static int
++close_learn(struct inode *inode, struct file *file)
++{
++	if (file->f_mode & FMODE_READ) {
++		char *tmp = NULL;
++		mutex_lock(&gr_learn_user_mutex);
++		spin_lock(&gr_learn_lock);
++		tmp = learn_buffer;
++		learn_buffer = NULL;
++		spin_unlock(&gr_learn_lock);
++		if (tmp)
++			vfree(tmp);
++		if (learn_buffer_user != NULL) {
++			vfree(learn_buffer_user);
++			learn_buffer_user = NULL;
++		}
++		learn_buffer_len = 0;
++		learn_buffer_user_len = 0;
++		gr_learn_attached = 0;
++		mutex_unlock(&gr_learn_user_mutex);
++	}
++
++	return 0;
++}
++		
++const struct file_operations grsec_fops = {
++	.read		= read_learn,
++	.write		= write_grsec_handler,
++	.open		= open_learn,
++	.release	= close_learn,
++	.poll		= poll_learn,
++};
+diff --git a/grsecurity/gracl_policy.c b/grsecurity/gracl_policy.c
+new file mode 100644
+index 0000000..fd26052
+--- /dev/null
++++ b/grsecurity/gracl_policy.c
+@@ -0,0 +1,1781 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/namei.h>
++#include <linux/mount.h>
++#include <linux/tty.h>
++#include <linux/proc_fs.h>
++#include <linux/lglock.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/types.h>
++#include <linux/sysctl.h>
++#include <linux/netdevice.h>
++#include <linux/ptrace.h>
++#include <linux/gracl.h>
++#include <linux/gralloc.h>
++#include <linux/security.h>
++#include <linux/grinternal.h>
++#include <linux/pid_namespace.h>
++#include <linux/stop_machine.h>
++#include <linux/fdtable.h>
++#include <linux/percpu.h>
++#include <linux/lglock.h>
++#include <linux/hugetlb.h>
++#include <linux/posix-timers.h>
++#include "../fs/mount.h"
++
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <asm/mman.h>
++
++extern struct gr_policy_state *polstate;
++
++#define FOR_EACH_ROLE_START(role) \
++	role = polstate->role_list; \
++	while (role) {
++
++#define FOR_EACH_ROLE_END(role) \
++		role = role->prev; \
++	}
++
++struct path gr_real_root;
++
++extern struct gr_alloc_state *current_alloc_state;
++
++u16 acl_sp_role_value;
++
++static DEFINE_MUTEX(gr_dev_mutex);
++
++extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum);
++extern void gr_clear_learn_entries(void);
++
++struct gr_arg *gr_usermode __read_only;
++unsigned char *gr_system_salt __read_only;
++unsigned char *gr_system_sum __read_only;
++
++static unsigned int gr_auth_attempts = 0;
++static unsigned long gr_auth_expires = 0UL;
++
++struct acl_object_label *fakefs_obj_rw;
++struct acl_object_label *fakefs_obj_rwx;
++
++extern int gr_init_uidset(void);
++extern void gr_free_uidset(void);
++extern void gr_remove_uid(uid_t uid);
++extern int gr_find_uid(uid_t uid);
++
++extern struct acl_subject_label *__gr_get_subject_for_task(const struct gr_policy_state *state, struct task_struct *task, const char *filename, int fallback);
++extern void __gr_apply_subject_to_task(struct gr_policy_state *state, struct task_struct *task, struct acl_subject_label *subj);
++extern int gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb);
++extern void __insert_inodev_entry(const struct gr_policy_state *state, struct inodev_entry *entry);
++extern struct acl_role_label *__lookup_acl_role_label(const struct gr_policy_state *state, const struct task_struct *task, const uid_t uid, const gid_t gid);
++extern void insert_acl_obj_label(struct acl_object_label *obj, struct acl_subject_label *subj);
++extern void insert_acl_subj_label(struct acl_subject_label *obj, struct acl_role_label *role);
++extern struct name_entry * __lookup_name_entry(const struct gr_policy_state *state, const char *name);
++extern char *gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt);
++extern struct acl_subject_label *lookup_acl_subj_label(const u64 ino, const dev_t dev, const struct acl_role_label *role);
++extern struct acl_subject_label *lookup_acl_subj_label_deleted(const u64 ino, const dev_t dev, const struct acl_role_label *role);
++extern void assign_special_role(const char *rolename);
++extern struct acl_subject_label *chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, const struct acl_role_label *role);
++extern int gr_rbac_disable(void *unused);
++extern void gr_enable_rbac_system(void);
++
++static int copy_acl_object_label_normal(struct acl_object_label *obj, const struct acl_object_label *userp)
++{
++	if (copy_from_user(obj, userp, sizeof(struct acl_object_label)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_acl_ip_label_normal(struct acl_ip_label *ip, const struct acl_ip_label *userp)
++{
++	if (copy_from_user(ip, userp, sizeof(struct acl_ip_label)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_acl_subject_label_normal(struct acl_subject_label *subj, const struct acl_subject_label *userp)
++{
++	if (copy_from_user(subj, userp, sizeof(struct acl_subject_label)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_acl_role_label_normal(struct acl_role_label *role, const struct acl_role_label *userp)
++{
++	if (copy_from_user(role, userp, sizeof(struct acl_role_label)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_role_allowed_ip_normal(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp)
++{
++	if (copy_from_user(roleip, userp, sizeof(struct role_allowed_ip)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_sprole_pw_normal(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp)
++{
++	if (copy_from_user(pw, userp + idx, sizeof(struct sprole_pw)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_gr_hash_struct_normal(struct gr_hash_struct *hash, const struct gr_hash_struct *userp)
++{
++	if (copy_from_user(hash, userp, sizeof(struct gr_hash_struct)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_role_transition_normal(struct role_transition *trans, const struct role_transition *userp)
++{
++	if (copy_from_user(trans, userp, sizeof(struct role_transition)))
++		return -EFAULT;
++
++	return 0;
++}
++
++int copy_pointer_from_array_normal(void *ptr, unsigned long idx, const void *userp)
++{
++	if (copy_from_user(ptr, userp + (idx * sizeof(void *)), sizeof(void *)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static int copy_gr_arg_wrapper_normal(const char __user *buf, struct gr_arg_wrapper *uwrap)
++{
++	if (copy_from_user(uwrap, buf, sizeof (struct gr_arg_wrapper)))
++		return -EFAULT;
++
++	if ((uwrap->version != GRSECURITY_VERSION) ||
++	    (uwrap->size != sizeof(struct gr_arg)))
++		return -EINVAL;
++
++	return 0;
++}
++
++static int copy_gr_arg_normal(const struct gr_arg __user *buf, struct gr_arg *arg)
++{
++	if (copy_from_user(arg, buf, sizeof (struct gr_arg)))
++		return -EFAULT;
++
++	return 0;
++}
++
++static size_t get_gr_arg_wrapper_size_normal(void)
++{
++	return sizeof(struct gr_arg_wrapper);
++}
++
++#ifdef CONFIG_COMPAT
++extern int copy_gr_arg_wrapper_compat(const char *buf, struct gr_arg_wrapper *uwrap);
++extern int copy_gr_arg_compat(const struct gr_arg __user *buf, struct gr_arg *arg);
++extern int copy_acl_object_label_compat(struct acl_object_label *obj, const struct acl_object_label *userp);
++extern int copy_acl_subject_label_compat(struct acl_subject_label *subj, const struct acl_subject_label *userp);
++extern int copy_acl_role_label_compat(struct acl_role_label *role, const struct acl_role_label *userp);
++extern int copy_role_allowed_ip_compat(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp);
++extern int copy_role_transition_compat(struct role_transition *trans, const struct role_transition *userp);
++extern int copy_gr_hash_struct_compat(struct gr_hash_struct *hash, const struct gr_hash_struct *userp);
++extern int copy_pointer_from_array_compat(void *ptr, unsigned long idx, const void *userp);
++extern int copy_acl_ip_label_compat(struct acl_ip_label *ip, const struct acl_ip_label *userp);
++extern int copy_sprole_pw_compat(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp);
++extern size_t get_gr_arg_wrapper_size_compat(void);
++
++int (* copy_gr_arg_wrapper)(const char *buf, struct gr_arg_wrapper *uwrap) __read_only;
++int (* copy_gr_arg)(const struct gr_arg *buf, struct gr_arg *arg) __read_only;
++int (* copy_acl_object_label)(struct acl_object_label *obj, const struct acl_object_label *userp) __read_only;
++int (* copy_acl_subject_label)(struct acl_subject_label *subj, const struct acl_subject_label *userp) __read_only;
++int (* copy_acl_role_label)(struct acl_role_label *role, const struct acl_role_label *userp) __read_only;
++int (* copy_acl_ip_label)(struct acl_ip_label *ip, const struct acl_ip_label *userp) __read_only;
++int (* copy_pointer_from_array)(void *ptr, unsigned long idx, const void *userp) __read_only;
++int (* copy_sprole_pw)(struct sprole_pw *pw, unsigned long idx, const struct sprole_pw *userp) __read_only;
++int (* copy_gr_hash_struct)(struct gr_hash_struct *hash, const struct gr_hash_struct *userp) __read_only;
++int (* copy_role_transition)(struct role_transition *trans, const struct role_transition *userp) __read_only;
++int (* copy_role_allowed_ip)(struct role_allowed_ip *roleip, const struct role_allowed_ip *userp) __read_only;
++size_t (* get_gr_arg_wrapper_size)(void) __read_only;
++
++#else
++#define copy_gr_arg_wrapper copy_gr_arg_wrapper_normal
++#define copy_gr_arg copy_gr_arg_normal
++#define copy_gr_hash_struct copy_gr_hash_struct_normal
++#define copy_acl_object_label copy_acl_object_label_normal
++#define copy_acl_subject_label copy_acl_subject_label_normal
++#define copy_acl_role_label copy_acl_role_label_normal
++#define copy_acl_ip_label copy_acl_ip_label_normal
++#define copy_pointer_from_array copy_pointer_from_array_normal
++#define copy_sprole_pw copy_sprole_pw_normal
++#define copy_role_transition copy_role_transition_normal
++#define copy_role_allowed_ip copy_role_allowed_ip_normal
++#define get_gr_arg_wrapper_size get_gr_arg_wrapper_size_normal
++#endif
++
++static struct acl_subject_label *
++lookup_subject_map(const struct acl_subject_label *userp)
++{
++	unsigned int index = gr_shash(userp, polstate->subj_map_set.s_size);
++	struct subject_map *match;
++
++	match = polstate->subj_map_set.s_hash[index];
++
++	while (match && match->user != userp)
++		match = match->next;
++
++	if (match != NULL)
++		return match->kernel;
++	else
++		return NULL;
++}
++
++static void
++insert_subj_map_entry(struct subject_map *subjmap)
++{
++	unsigned int index = gr_shash(subjmap->user, polstate->subj_map_set.s_size);
++	struct subject_map **curr;
++
++	subjmap->prev = NULL;
++
++	curr = &polstate->subj_map_set.s_hash[index];
++	if (*curr != NULL)
++		(*curr)->prev = subjmap;
++
++	subjmap->next = *curr;
++	*curr = subjmap;
++
++	return;
++}
++
++static void
++__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid)
++{
++	unsigned int index =
++	    gr_rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), polstate->acl_role_set.r_size);
++	struct acl_role_label **curr;
++	struct acl_role_label *tmp, *tmp2;
++
++	curr = &polstate->acl_role_set.r_hash[index];
++
++	/* simple case, slot is empty, just set it to our role */
++	if (*curr == NULL) {
++		*curr = role;
++	} else {
++		/* example:
++		   1 -> 2 -> 3 (adding 2 -> 3 to here)
++		   2 -> 3
++		*/
++		/* first check to see if we can already be reached via this slot */
++		tmp = *curr;
++		while (tmp && tmp != role)
++			tmp = tmp->next;
++		if (tmp == role) {
++			/* we don't need to add ourselves to this slot's chain */
++			return;
++		}
++		/* we need to add ourselves to this chain, two cases */
++		if (role->next == NULL) {
++			/* simple case, append the current chain to our role */
++			role->next = *curr;
++			*curr = role;
++		} else {
++			/* 1 -> 2 -> 3 -> 4
++			   2 -> 3 -> 4
++			   3 -> 4 (adding 1 -> 2 -> 3 -> 4 to here)
++			*/			   
++			/* trickier case: walk our role's chain until we find
++			   the role for the start of the current slot's chain */
++			tmp = role;
++			tmp2 = *curr;
++			while (tmp->next && tmp->next != tmp2)
++				tmp = tmp->next;
++			if (tmp->next == tmp2) {
++				/* from example above, we found 3, so just
++				   replace this slot's chain with ours */
++				*curr = role;
++			} else {
++				/* we didn't find a subset of our role's chain
++				   in the current slot's chain, so append their
++				   chain to ours, and set us as the first role in
++				   the slot's chain
++
++				   we could fold this case with the case above,
++				   but making it explicit for clarity
++				*/
++				tmp->next = tmp2;
++				*curr = role;
++			}
++		}
++	}
++
++	return;
++}
++
++static void
++insert_acl_role_label(struct acl_role_label *role)
++{
++	int i;
++
++	if (polstate->role_list == NULL) {
++		polstate->role_list = role;
++		role->prev = NULL;
++	} else {
++		role->prev = polstate->role_list;
++		polstate->role_list = role;
++	}
++	
++	/* used for hash chains */
++	role->next = NULL;
++
++	if (role->roletype & GR_ROLE_DOMAIN) {
++		for (i = 0; i < role->domain_child_num; i++)
++			__insert_acl_role_label(role, role->domain_children[i]);
++	} else
++		__insert_acl_role_label(role, role->uidgid);
++}
++					
++static int
++insert_name_entry(char *name, const u64 inode, const dev_t device, __u8 deleted)
++{
++	struct name_entry **curr, *nentry;
++	struct inodev_entry *ientry;
++	unsigned int len = strlen(name);
++	unsigned int key = full_name_hash(name, len);
++	unsigned int index = key % polstate->name_set.n_size;
++
++	curr = &polstate->name_set.n_hash[index];
++
++	while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len)))
++		curr = &((*curr)->next);
++
++	if (*curr != NULL)
++		return 1;
++
++	nentry = acl_alloc(sizeof (struct name_entry));
++	if (nentry == NULL)
++		return 0;
++	ientry = acl_alloc(sizeof (struct inodev_entry));
++	if (ientry == NULL)
++		return 0;
++	ientry->nentry = nentry;
++
++	nentry->key = key;
++	nentry->name = name;
++	nentry->inode = inode;
++	nentry->device = device;
++	nentry->len = len;
++	nentry->deleted = deleted;
++
++	nentry->prev = NULL;
++	curr = &polstate->name_set.n_hash[index];
++	if (*curr != NULL)
++		(*curr)->prev = nentry;
++	nentry->next = *curr;
++	*curr = nentry;
++
++	/* insert us into the table searchable by inode/dev */
++	__insert_inodev_entry(polstate, ientry);
++
++	return 1;
++}
++
++/* allocating chained hash tables, so optimal size is where lambda ~ 1 */
++
++static void *
++create_table(__u32 * len, int elementsize)
++{
++	unsigned int table_sizes[] = {
++		7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381,
++		32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
++		4194301, 8388593, 16777213, 33554393, 67108859
++	};
++	void *newtable = NULL;
++	unsigned int pwr = 0;
++
++	while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) &&
++	       table_sizes[pwr] <= *len)
++		pwr++;
++
++	if (table_sizes[pwr] <= *len || (table_sizes[pwr] > ULONG_MAX / elementsize))
++		return newtable;
++
++	if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE)
++		newtable =
++		    kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL);
++	else
++		newtable = vmalloc(table_sizes[pwr] * elementsize);
++
++	*len = table_sizes[pwr];
++
++	return newtable;
++}
++
++static int
++init_variables(const struct gr_arg *arg, bool reload)
++{
++	struct task_struct *reaper = init_pid_ns.child_reaper;
++	unsigned int stacksize;
++
++	polstate->subj_map_set.s_size = arg->role_db.num_subjects;
++	polstate->acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children;
++	polstate->name_set.n_size = arg->role_db.num_objects;
++	polstate->inodev_set.i_size = arg->role_db.num_objects;
++
++	if (!polstate->subj_map_set.s_size || !polstate->acl_role_set.r_size ||
++	    !polstate->name_set.n_size || !polstate->inodev_set.i_size)
++		return 1;
++
++	if (!reload) {
++		if (!gr_init_uidset())
++			return 1;
++	}
++
++	/* set up the stack that holds allocation info */
++
++	stacksize = arg->role_db.num_pointers + 5;
++
++	if (!acl_alloc_stack_init(stacksize))
++		return 1;
++
++	if (!reload) {
++		/* grab reference for the real root dentry and vfsmount */
++		get_fs_root(reaper->fs, &gr_real_root);
++	
++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
++	printk(KERN_ALERT "Obtained real root device=%d, inode=%lu\n", __get_dev(gr_real_root.dentry), gr_real_root.dentry->d_inode->i_ino);
++#endif
++
++		fakefs_obj_rw = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
++		if (fakefs_obj_rw == NULL)
++			return 1;
++		fakefs_obj_rw->mode = GR_FIND | GR_READ | GR_WRITE;
++	
++		fakefs_obj_rwx = kzalloc(sizeof(struct acl_object_label), GFP_KERNEL);
++		if (fakefs_obj_rwx == NULL)
++			return 1;
++		fakefs_obj_rwx->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC;
++	}
++
++	polstate->subj_map_set.s_hash =
++	    (struct subject_map **) create_table(&polstate->subj_map_set.s_size, sizeof(void *));
++	polstate->acl_role_set.r_hash =
++	    (struct acl_role_label **) create_table(&polstate->acl_role_set.r_size, sizeof(void *));
++	polstate->name_set.n_hash = (struct name_entry **) create_table(&polstate->name_set.n_size, sizeof(void *));
++	polstate->inodev_set.i_hash =
++	    (struct inodev_entry **) create_table(&polstate->inodev_set.i_size, sizeof(void *));
++
++	if (!polstate->subj_map_set.s_hash || !polstate->acl_role_set.r_hash ||
++	    !polstate->name_set.n_hash || !polstate->inodev_set.i_hash)
++		return 1;
++
++	memset(polstate->subj_map_set.s_hash, 0,
++	       sizeof(struct subject_map *) * polstate->subj_map_set.s_size);
++	memset(polstate->acl_role_set.r_hash, 0,
++	       sizeof (struct acl_role_label *) * polstate->acl_role_set.r_size);
++	memset(polstate->name_set.n_hash, 0,
++	       sizeof (struct name_entry *) * polstate->name_set.n_size);
++	memset(polstate->inodev_set.i_hash, 0,
++	       sizeof (struct inodev_entry *) * polstate->inodev_set.i_size);
++
++	return 0;
++}
++
++/* free information not needed after startup
++   currently contains user->kernel pointer mappings for subjects
++*/
++
++static void
++free_init_variables(void)
++{
++	__u32 i;
++
++	if (polstate->subj_map_set.s_hash) {
++		for (i = 0; i < polstate->subj_map_set.s_size; i++) {
++			if (polstate->subj_map_set.s_hash[i]) {
++				kfree(polstate->subj_map_set.s_hash[i]);
++				polstate->subj_map_set.s_hash[i] = NULL;
++			}
++		}
++
++		if ((polstate->subj_map_set.s_size * sizeof (struct subject_map *)) <=
++		    PAGE_SIZE)
++			kfree(polstate->subj_map_set.s_hash);
++		else
++			vfree(polstate->subj_map_set.s_hash);
++	}
++
++	return;
++}
++
++static void
++free_variables(bool reload)
++{
++	struct acl_subject_label *s;
++	struct acl_role_label *r;
++	struct task_struct *task, *task2;
++	unsigned int x;
++
++	if (!reload) {
++		gr_clear_learn_entries();
++
++		read_lock(&tasklist_lock);
++		do_each_thread(task2, task) {
++			task->acl_sp_role = 0;
++			task->acl_role_id = 0;
++			task->inherited = 0;
++			task->acl = NULL;
++			task->role = NULL;
++		} while_each_thread(task2, task);
++		read_unlock(&tasklist_lock);
++
++		kfree(fakefs_obj_rw);
++		fakefs_obj_rw = NULL;
++		kfree(fakefs_obj_rwx);
++		fakefs_obj_rwx = NULL;
++
++		/* release the reference to the real root dentry and vfsmount */
++		path_put(&gr_real_root);
++		memset(&gr_real_root, 0, sizeof(gr_real_root));
++	}
++
++	/* free all object hash tables */
++
++	FOR_EACH_ROLE_START(r)
++		if (r->subj_hash == NULL)
++			goto next_role;
++		FOR_EACH_SUBJECT_START(r, s, x)
++			if (s->obj_hash == NULL)
++				break;
++			if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
++				kfree(s->obj_hash);
++			else
++				vfree(s->obj_hash);
++		FOR_EACH_SUBJECT_END(s, x)
++		FOR_EACH_NESTED_SUBJECT_START(r, s)
++			if (s->obj_hash == NULL)
++				break;
++			if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE)
++				kfree(s->obj_hash);
++			else
++				vfree(s->obj_hash);
++		FOR_EACH_NESTED_SUBJECT_END(s)
++		if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE)
++			kfree(r->subj_hash);
++		else
++			vfree(r->subj_hash);
++		r->subj_hash = NULL;
++next_role:
++	FOR_EACH_ROLE_END(r)
++
++	acl_free_all();
++
++	if (polstate->acl_role_set.r_hash) {
++		if ((polstate->acl_role_set.r_size * sizeof (struct acl_role_label *)) <=
++		    PAGE_SIZE)
++			kfree(polstate->acl_role_set.r_hash);
++		else
++			vfree(polstate->acl_role_set.r_hash);
++	}
++	if (polstate->name_set.n_hash) {
++		if ((polstate->name_set.n_size * sizeof (struct name_entry *)) <=
++		    PAGE_SIZE)
++			kfree(polstate->name_set.n_hash);
++		else
++			vfree(polstate->name_set.n_hash);
++	}
++
++	if (polstate->inodev_set.i_hash) {
++		if ((polstate->inodev_set.i_size * sizeof (struct inodev_entry *)) <=
++		    PAGE_SIZE)
++			kfree(polstate->inodev_set.i_hash);
++		else
++			vfree(polstate->inodev_set.i_hash);
++	}
++
++	if (!reload)
++		gr_free_uidset();
++
++	memset(&polstate->name_set, 0, sizeof (struct name_db));
++	memset(&polstate->inodev_set, 0, sizeof (struct inodev_db));
++	memset(&polstate->acl_role_set, 0, sizeof (struct acl_role_db));
++	memset(&polstate->subj_map_set, 0, sizeof (struct acl_subj_map_db));
++
++	polstate->default_role = NULL;
++	polstate->kernel_role = NULL;
++	polstate->role_list = NULL;
++
++	return;
++}
++
++static struct acl_subject_label *
++do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied);
++
++static int alloc_and_copy_string(char **name, unsigned int maxlen)
++{
++	unsigned int len = strnlen_user(*name, maxlen);
++	char *tmp;
++
++	if (!len || len >= maxlen)
++		return -EINVAL;
++
++	if ((tmp = (char *) acl_alloc(len)) == NULL)
++		return -ENOMEM;
++
++	if (copy_from_user(tmp, *name, len))
++		return -EFAULT;
++
++	tmp[len-1] = '\0';
++	*name = tmp;
++
++	return 0;
++}
++
++static int
++copy_user_glob(struct acl_object_label *obj)
++{
++	struct acl_object_label *g_tmp, **guser;
++	int error;
++
++	if (obj->globbed == NULL)
++		return 0;
++
++	guser = &obj->globbed;
++	while (*guser) {
++		g_tmp = (struct acl_object_label *)
++			acl_alloc(sizeof (struct acl_object_label));
++		if (g_tmp == NULL)
++			return -ENOMEM;
++
++		if (copy_acl_object_label(g_tmp, *guser))
++			return -EFAULT;
++
++		error = alloc_and_copy_string(&g_tmp->filename, PATH_MAX);
++		if (error)
++			return error;
++
++		*guser = g_tmp;
++		guser = &(g_tmp->next);
++	}
++
++	return 0;
++}
++
++static int
++copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj,
++	       struct acl_role_label *role)
++{
++	struct acl_object_label *o_tmp;
++	int ret;
++
++	while (userp) {
++		if ((o_tmp = (struct acl_object_label *)
++		     acl_alloc(sizeof (struct acl_object_label))) == NULL)
++			return -ENOMEM;
++
++		if (copy_acl_object_label(o_tmp, userp))
++			return -EFAULT;
++
++		userp = o_tmp->prev;
++
++		ret = alloc_and_copy_string(&o_tmp->filename, PATH_MAX);
++		if (ret)
++			return ret;
++
++		insert_acl_obj_label(o_tmp, subj);
++		if (!insert_name_entry(o_tmp->filename, o_tmp->inode,
++				       o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0))
++			return -ENOMEM;
++
++		ret = copy_user_glob(o_tmp);
++		if (ret)
++			return ret;
++
++		if (o_tmp->nested) {
++			int already_copied;
++
++			o_tmp->nested = do_copy_user_subj(o_tmp->nested, role, &already_copied);
++			if (IS_ERR(o_tmp->nested))
++				return PTR_ERR(o_tmp->nested);
++
++			/* insert into nested subject list if we haven't copied this one yet
++			   to prevent duplicate entries */
++			if (!already_copied) {
++				o_tmp->nested->next = role->hash->first;
++				role->hash->first = o_tmp->nested;
++			}
++		}
++	}
++
++	return 0;
++}
++
++static __u32
++count_user_subjs(struct acl_subject_label *userp)
++{
++	struct acl_subject_label s_tmp;
++	__u32 num = 0;
++
++	while (userp) {
++		if (copy_acl_subject_label(&s_tmp, userp))
++			break;
++
++		userp = s_tmp.prev;
++	}
++
++	return num;
++}
++
++static int
++copy_user_allowedips(struct acl_role_label *rolep)
++{
++	struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast;
++
++	ruserip = rolep->allowed_ips;
++
++	while (ruserip) {
++		rlast = rtmp;
++
++		if ((rtmp = (struct role_allowed_ip *)
++		     acl_alloc(sizeof (struct role_allowed_ip))) == NULL)
++			return -ENOMEM;
++
++		if (copy_role_allowed_ip(rtmp, ruserip))
++			return -EFAULT;
++
++		ruserip = rtmp->prev;
++
++		if (!rlast) {
++			rtmp->prev = NULL;
++			rolep->allowed_ips = rtmp;
++		} else {
++			rlast->next = rtmp;
++			rtmp->prev = rlast;
++		}
++
++		if (!ruserip)
++			rtmp->next = NULL;
++	}
++
++	return 0;
++}
++
++static int
++copy_user_transitions(struct acl_role_label *rolep)
++{
++	struct role_transition *rusertp, *rtmp = NULL, *rlast;
++	int error;
++
++	rusertp = rolep->transitions;
++
++	while (rusertp) {
++		rlast = rtmp;
++
++		if ((rtmp = (struct role_transition *)
++		     acl_alloc(sizeof (struct role_transition))) == NULL)
++			return -ENOMEM;
++
++		if (copy_role_transition(rtmp, rusertp))
++			return -EFAULT;
++
++		rusertp = rtmp->prev;
++
++		error = alloc_and_copy_string(&rtmp->rolename, GR_SPROLE_LEN);
++		if (error)
++			return error;
++
++		if (!rlast) {
++			rtmp->prev = NULL;
++			rolep->transitions = rtmp;
++		} else {
++			rlast->next = rtmp;
++			rtmp->prev = rlast;
++		}
++
++		if (!rusertp)
++			rtmp->next = NULL;
++	}
++
++	return 0;
++}
++
++static __u32 count_user_objs(const struct acl_object_label __user *userp)
++{
++	struct acl_object_label o_tmp;
++	__u32 num = 0;
++
++	while (userp) {
++		if (copy_acl_object_label(&o_tmp, userp))
++			break;
++
++		userp = o_tmp.prev;
++		num++;
++	}
++
++	return num;
++}
++
++static struct acl_subject_label *
++do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role, int *already_copied)
++{
++	struct acl_subject_label *s_tmp = NULL, *s_tmp2;
++	__u32 num_objs;
++	struct acl_ip_label **i_tmp, *i_utmp2;
++	struct gr_hash_struct ghash;
++	struct subject_map *subjmap;
++	unsigned int i_num;
++	int err;
++
++	if (already_copied != NULL)
++		*already_copied = 0;
++
++	s_tmp = lookup_subject_map(userp);
++
++	/* we've already copied this subject into the kernel, just return
++	   the reference to it, and don't copy it over again
++	*/
++	if (s_tmp) {
++		if (already_copied != NULL)
++			*already_copied = 1;
++		return(s_tmp);
++	}
++
++	if ((s_tmp = (struct acl_subject_label *)
++	    acl_alloc(sizeof (struct acl_subject_label))) == NULL)
++		return ERR_PTR(-ENOMEM);
++
++	subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL);
++	if (subjmap == NULL)
++		return ERR_PTR(-ENOMEM);
++
++	subjmap->user = userp;
++	subjmap->kernel = s_tmp;
++	insert_subj_map_entry(subjmap);
++
++	if (copy_acl_subject_label(s_tmp, userp))
++		return ERR_PTR(-EFAULT);
++
++	err = alloc_and_copy_string(&s_tmp->filename, PATH_MAX);
++	if (err)
++		return ERR_PTR(err);
++
++	if (!strcmp(s_tmp->filename, "/"))
++		role->root_label = s_tmp;
++
++	if (copy_gr_hash_struct(&ghash, s_tmp->hash))
++		return ERR_PTR(-EFAULT);
++
++	/* copy user and group transition tables */
++
++	if (s_tmp->user_trans_num) {
++		uid_t *uidlist;
++
++		uidlist = (uid_t *)acl_alloc_num(s_tmp->user_trans_num, sizeof(uid_t));
++		if (uidlist == NULL)
++			return ERR_PTR(-ENOMEM);
++		if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t)))
++			return ERR_PTR(-EFAULT);
++
++		s_tmp->user_transitions = uidlist;
++	}
++
++	if (s_tmp->group_trans_num) {
++		gid_t *gidlist;
++
++		gidlist = (gid_t *)acl_alloc_num(s_tmp->group_trans_num, sizeof(gid_t));
++		if (gidlist == NULL)
++			return ERR_PTR(-ENOMEM);
++		if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t)))
++			return ERR_PTR(-EFAULT);
++
++		s_tmp->group_transitions = gidlist;
++	}
++
++	/* set up object hash table */
++	num_objs = count_user_objs(ghash.first);
++
++	s_tmp->obj_hash_size = num_objs;
++	s_tmp->obj_hash =
++	    (struct acl_object_label **)
++	    create_table(&(s_tmp->obj_hash_size), sizeof(void *));
++
++	if (!s_tmp->obj_hash)
++		return ERR_PTR(-ENOMEM);
++
++	memset(s_tmp->obj_hash, 0,
++	       s_tmp->obj_hash_size *
++	       sizeof (struct acl_object_label *));
++
++	/* add in objects */
++	err = copy_user_objs(ghash.first, s_tmp, role);
++
++	if (err)
++		return ERR_PTR(err);
++
++	/* set pointer for parent subject */
++	if (s_tmp->parent_subject) {
++		s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role, NULL);
++
++		if (IS_ERR(s_tmp2))
++			return s_tmp2;
++
++		s_tmp->parent_subject = s_tmp2;
++	}
++
++	/* add in ip acls */
++
++	if (!s_tmp->ip_num) {
++		s_tmp->ips = NULL;
++		goto insert;
++	}
++
++	i_tmp =
++	    (struct acl_ip_label **) acl_alloc_num(s_tmp->ip_num,
++					       sizeof (struct acl_ip_label *));
++
++	if (!i_tmp)
++		return ERR_PTR(-ENOMEM);
++
++	for (i_num = 0; i_num < s_tmp->ip_num; i_num++) {
++		*(i_tmp + i_num) =
++		    (struct acl_ip_label *)
++		    acl_alloc(sizeof (struct acl_ip_label));
++		if (!*(i_tmp + i_num))
++			return ERR_PTR(-ENOMEM);
++
++		if (copy_pointer_from_array(&i_utmp2, i_num, s_tmp->ips))
++			return ERR_PTR(-EFAULT);
++
++		if (copy_acl_ip_label(*(i_tmp + i_num), i_utmp2))
++			return ERR_PTR(-EFAULT);
++		
++		if ((*(i_tmp + i_num))->iface == NULL)
++			continue;
++
++		err = alloc_and_copy_string(&(*(i_tmp + i_num))->iface, IFNAMSIZ);
++		if (err)
++			return ERR_PTR(err);
++	}
++
++	s_tmp->ips = i_tmp;
++
++insert:
++	if (!insert_name_entry(s_tmp->filename, s_tmp->inode,
++			       s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0))
++		return ERR_PTR(-ENOMEM);
++
++	return s_tmp;
++}
++
++static int
++copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role)
++{
++	struct acl_subject_label s_pre;
++	struct acl_subject_label * ret;
++	int err;
++
++	while (userp) {
++		if (copy_acl_subject_label(&s_pre, userp))
++			return -EFAULT;
++		
++		ret = do_copy_user_subj(userp, role, NULL);
++
++		err = PTR_ERR(ret);
++		if (IS_ERR(ret))
++			return err;
++
++		insert_acl_subj_label(ret, role);
++
++		userp = s_pre.prev;
++	}
++
++	return 0;
++}
++
++static int
++copy_user_acl(struct gr_arg *arg)
++{
++	struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2;
++	struct acl_subject_label *subj_list;
++	struct sprole_pw *sptmp;
++	struct gr_hash_struct *ghash;
++	uid_t *domainlist;
++	unsigned int r_num;
++	int err = 0;
++	__u16 i;
++	__u32 num_subjs;
++
++	/* we need a default and kernel role */
++	if (arg->role_db.num_roles < 2)
++		return -EINVAL;
++
++	/* copy special role authentication info from userspace */
++
++	polstate->num_sprole_pws = arg->num_sprole_pws;
++	polstate->acl_special_roles = (struct sprole_pw **) acl_alloc_num(polstate->num_sprole_pws, sizeof(struct sprole_pw *));
++
++	if (!polstate->acl_special_roles && polstate->num_sprole_pws)
++		return -ENOMEM;
++
++	for (i = 0; i < polstate->num_sprole_pws; i++) {
++		sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw));
++		if (!sptmp)
++			return -ENOMEM;
++		if (copy_sprole_pw(sptmp, i, arg->sprole_pws))
++			return -EFAULT;
++
++		err = alloc_and_copy_string((char **)&sptmp->rolename, GR_SPROLE_LEN);
++		if (err)
++			return err;
++
++#ifdef CONFIG_GRKERNSEC_RBAC_DEBUG
++		printk(KERN_ALERT "Copying special role %s\n", sptmp->rolename);
++#endif
++
++		polstate->acl_special_roles[i] = sptmp;
++	}
++
++	r_utmp = (struct acl_role_label **) arg->role_db.r_table;
++
++	for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) {
++		r_tmp = acl_alloc(sizeof (struct acl_role_label));
++
++		if (!r_tmp)
++			return -ENOMEM;
++
++		if (copy_pointer_from_array(&r_utmp2, r_num, r_utmp))
++			return -EFAULT;
++
++		if (copy_acl_role_label(r_tmp, r_utmp2))
++			return -EFAULT;
++
++		err = alloc_and_copy_string(&r_tmp->rolename, GR_SPROLE_LEN);
++		if (err)
++			return err;
++
++		if (!strcmp(r_tmp->rolename, "default")
++		    && (r_tmp->roletype & GR_ROLE_DEFAULT)) {
++			polstate->default_role = r_tmp;
++		} else if (!strcmp(r_tmp->rolename, ":::kernel:::")) {
++			polstate->kernel_role = r_tmp;
++		}
++
++		if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL)
++			return -ENOMEM;
++
++		if (copy_gr_hash_struct(ghash, r_tmp->hash))
++			return -EFAULT;
++
++		r_tmp->hash = ghash;
++
++		num_subjs = count_user_subjs(r_tmp->hash->first);
++
++		r_tmp->subj_hash_size = num_subjs;
++		r_tmp->subj_hash =
++		    (struct acl_subject_label **)
++		    create_table(&(r_tmp->subj_hash_size), sizeof(void *));
++
++		if (!r_tmp->subj_hash)
++			return -ENOMEM;
++
++		err = copy_user_allowedips(r_tmp);
++		if (err)
++			return err;
++
++		/* copy domain info */
++		if (r_tmp->domain_children != NULL) {
++			domainlist = acl_alloc_num(r_tmp->domain_child_num, sizeof(uid_t));
++			if (domainlist == NULL)
++				return -ENOMEM;
++
++			if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t)))
++				return -EFAULT;
++
++			r_tmp->domain_children = domainlist;
++		}
++
++		err = copy_user_transitions(r_tmp);
++		if (err)
++			return err;
++
++		memset(r_tmp->subj_hash, 0,
++		       r_tmp->subj_hash_size *
++		       sizeof (struct acl_subject_label *));
++
++		/* acquire the list of subjects, then NULL out
++		   the list prior to parsing the subjects for this role,
++		   as during this parsing the list is replaced with a list
++		   of *nested* subjects for the role
++		*/
++		subj_list = r_tmp->hash->first;
++
++		/* set nested subject list to null */
++		r_tmp->hash->first = NULL;
++
++		err = copy_user_subjs(subj_list, r_tmp);
++
++		if (err)
++			return err;
++
++		insert_acl_role_label(r_tmp);
++	}
++
++	if (polstate->default_role == NULL || polstate->kernel_role == NULL)
++		return -EINVAL;
++
++	return err;
++}
++
++static int gracl_reload_apply_policies(void *reload)
++{
++	struct gr_reload_state *reload_state = (struct gr_reload_state *)reload;
++	struct task_struct *task, *task2;
++	struct acl_role_label *role, *rtmp;
++	struct acl_subject_label *subj;
++	const struct cred *cred;
++	int role_applied;
++	int ret = 0;
++
++	memcpy(&reload_state->oldpolicy, reload_state->oldpolicy_ptr, sizeof(struct gr_policy_state));
++	memcpy(&reload_state->oldalloc, reload_state->oldalloc_ptr, sizeof(struct gr_alloc_state));
++
++	/* first make sure we'll be able to apply the new policy cleanly */
++	do_each_thread(task2, task) {
++		if (task->exec_file == NULL)
++			continue;
++		role_applied = 0;
++		if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
++			/* preserve special roles */
++			FOR_EACH_ROLE_START(role)
++				if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
++					rtmp = task->role;
++					task->role = role;
++					role_applied = 1;
++					break;
++				}
++			FOR_EACH_ROLE_END(role)
++		}
++		if (!role_applied) {
++			cred = __task_cred(task);
++			rtmp = task->role;
++			task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
++		}
++		/* this handles non-nested inherited subjects, nested subjects will still
++		   be dropped currently */
++		subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
++		task->tmpacl = __gr_get_subject_for_task(polstate, task, NULL, 1);
++		/* change the role back so that we've made no modifications to the policy */
++		task->role = rtmp;
++
++		if (subj == NULL || task->tmpacl == NULL) {
++			ret = -EINVAL;
++			goto out;
++		}
++	} while_each_thread(task2, task);
++
++	/* now actually apply the policy */
++
++	do_each_thread(task2, task) {
++		if (task->exec_file) {
++			role_applied = 0;
++			if (!reload_state->oldmode && task->role->roletype & GR_ROLE_SPECIAL) {
++				/* preserve special roles */
++				FOR_EACH_ROLE_START(role)
++					if ((role->roletype & GR_ROLE_SPECIAL) && !strcmp(task->role->rolename, role->rolename)) {
++						task->role = role;
++						role_applied = 1;
++						break;
++					}
++				FOR_EACH_ROLE_END(role)
++			}
++			if (!role_applied) {
++				cred = __task_cred(task);
++				task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
++			}
++			/* this handles non-nested inherited subjects, nested subjects will still
++			   be dropped currently */
++			if (!reload_state->oldmode && task->inherited)
++				subj = __gr_get_subject_for_task(polstate, task, task->acl->filename, 1);
++			else {
++				/* looked up and tagged to the task previously */
++				subj = task->tmpacl;
++			}
++			/* subj will be non-null */
++			__gr_apply_subject_to_task(polstate, task, subj);
++			if (reload_state->oldmode) {
++				task->acl_role_id = 0;
++				task->acl_sp_role = 0;
++				task->inherited = 0;
++			}
++		} else {
++			// it's a kernel process
++			task->role = polstate->kernel_role;
++			task->acl = polstate->kernel_role->root_label;
++#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
++			task->acl->mode &= ~GR_PROCFIND;
++#endif
++		}
++	} while_each_thread(task2, task);
++
++	memcpy(reload_state->oldpolicy_ptr, &reload_state->newpolicy, sizeof(struct gr_policy_state));
++	memcpy(reload_state->oldalloc_ptr, &reload_state->newalloc, sizeof(struct gr_alloc_state));
++
++out:
++
++	return ret;
++}
++
++static int gracl_reload(struct gr_arg *args, unsigned char oldmode)
++{
++	struct gr_reload_state new_reload_state = { };
++	int err;
++
++	new_reload_state.oldpolicy_ptr = polstate;
++	new_reload_state.oldalloc_ptr = current_alloc_state;
++	new_reload_state.oldmode = oldmode;
++
++	current_alloc_state = &new_reload_state.newalloc;
++	polstate = &new_reload_state.newpolicy;
++
++	/* everything relevant is now saved off, copy in the new policy */
++	if (init_variables(args, true)) {
++		gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
++		err = -ENOMEM;
++		goto error;
++	}
++
++	err = copy_user_acl(args);
++	free_init_variables();
++	if (err)
++		goto error;
++	/* the new policy is copied in, with the old policy available via saved_state
++	   first go through applying roles, making sure to preserve special roles
++	   then apply new subjects, making sure to preserve inherited and nested subjects,
++	   though currently only inherited subjects will be preserved
++	*/
++	err = stop_machine(gracl_reload_apply_policies, &new_reload_state, NULL);
++	if (err)
++		goto error;
++
++	/* we've now applied the new policy, so restore the old policy state to free it */
++	polstate = &new_reload_state.oldpolicy;
++	current_alloc_state = &new_reload_state.oldalloc;
++	free_variables(true);
++
++	/* oldpolicy/oldalloc_ptr point to the new policy/alloc states as they were copied
++	   to running_polstate/current_alloc_state inside stop_machine
++	*/
++	err = 0;
++	goto out;
++error:
++	/* on error of loading the new policy, we'll just keep the previous
++	   policy set around
++	*/
++	free_variables(true);
++
++	/* doesn't affect runtime, but maintains consistent state */
++out:
++	polstate = new_reload_state.oldpolicy_ptr;
++	current_alloc_state = new_reload_state.oldalloc_ptr;
++
++	return err;
++}
++
++static int
++gracl_init(struct gr_arg *args)
++{
++	int error = 0;
++
++	memcpy(gr_system_salt, args->salt, GR_SALT_LEN);
++	memcpy(gr_system_sum, args->sum, GR_SHA_LEN);
++
++	if (init_variables(args, false)) {
++		gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION);
++		error = -ENOMEM;
++		goto out;
++	}
++
++	error = copy_user_acl(args);
++	free_init_variables();
++	if (error)
++		goto out;
++
++	error = gr_set_acls(0);
++	if (error)
++		goto out;
++
++	gr_enable_rbac_system();
++
++	return 0;
++
++out:
++	free_variables(false);
++	return error;
++}
++
++static int
++lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt,
++			 unsigned char **sum)
++{
++	struct acl_role_label *r;
++	struct role_allowed_ip *ipp;
++	struct role_transition *trans;
++	unsigned int i;
++	int found = 0;
++	u32 curr_ip = current->signal->curr_ip;
++
++	current->signal->saved_ip = curr_ip;
++
++	/* check transition table */
++
++	for (trans = current->role->transitions; trans; trans = trans->next) {
++		if (!strcmp(rolename, trans->rolename)) {
++			found = 1;
++			break;
++		}
++	}
++
++	if (!found)
++		return 0;
++
++	/* handle special roles that do not require authentication
++	   and check ip */
++
++	FOR_EACH_ROLE_START(r)
++		if (!strcmp(rolename, r->rolename) &&
++		    (r->roletype & GR_ROLE_SPECIAL)) {
++			found = 0;
++			if (r->allowed_ips != NULL) {
++				for (ipp = r->allowed_ips; ipp; ipp = ipp->next) {
++					if ((ntohl(curr_ip) & ipp->netmask) ==
++					     (ntohl(ipp->addr) & ipp->netmask))
++						found = 1;
++				}
++			} else
++				found = 2;
++			if (!found)
++				return 0;
++
++			if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) ||
++			    ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) {
++				*salt = NULL;
++				*sum = NULL;
++				return 1;
++			}
++		}
++	FOR_EACH_ROLE_END(r)
++
++	for (i = 0; i < polstate->num_sprole_pws; i++) {
++		if (!strcmp(rolename, polstate->acl_special_roles[i]->rolename)) {
++			*salt = polstate->acl_special_roles[i]->salt;
++			*sum = polstate->acl_special_roles[i]->sum;
++			return 1;
++		}
++	}
++
++	return 0;
++}
++
++int gr_check_secure_terminal(struct task_struct *task)
++{
++	struct task_struct *p, *p2, *p3;
++	struct files_struct *files;
++	struct fdtable *fdt;
++	struct file *our_file = NULL, *file;
++	int i;
++
++	if (task->signal->tty == NULL)
++		return 1;
++
++	files = get_files_struct(task);
++	if (files != NULL) {
++		rcu_read_lock();
++		fdt = files_fdtable(files);
++		for (i=0; i < fdt->max_fds; i++) {
++			file = fcheck_files(files, i);
++			if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) {
++				get_file(file);
++				our_file = file;
++			}
++		}
++		rcu_read_unlock();
++		put_files_struct(files);
++	}
++
++	if (our_file == NULL)
++		return 1;
++
++	read_lock(&tasklist_lock);
++	do_each_thread(p2, p) {
++		files = get_files_struct(p);
++		if (files == NULL ||
++		    (p->signal && p->signal->tty == task->signal->tty)) {
++			if (files != NULL)
++				put_files_struct(files);
++			continue;
++		}
++		rcu_read_lock();
++		fdt = files_fdtable(files);
++		for (i=0; i < fdt->max_fds; i++) {
++			file = fcheck_files(files, i);
++			if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) &&
++			    file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) {
++				p3 = task;
++				while (task_pid_nr(p3) > 0) {
++					if (p3 == p)
++						break;
++					p3 = p3->real_parent;
++				}
++				if (p3 == p)
++					break;
++				gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p);
++				gr_handle_alertkill(p);
++				rcu_read_unlock();
++				put_files_struct(files);
++				read_unlock(&tasklist_lock);
++				fput(our_file);
++				return 0;
++			}
++		}
++		rcu_read_unlock();
++		put_files_struct(files);
++	} while_each_thread(p2, p);
++	read_unlock(&tasklist_lock);
++
++	fput(our_file);
++	return 1;
++}
++
++ssize_t
++write_grsec_handler(struct file *file, const char __user * buf, size_t count, loff_t *ppos)
++{
++	struct gr_arg_wrapper uwrap;
++	unsigned char *sprole_salt = NULL;
++	unsigned char *sprole_sum = NULL;
++	int error = 0;
++	int error2 = 0;
++	size_t req_count = 0;
++	unsigned char oldmode = 0;
++
++	mutex_lock(&gr_dev_mutex);
++
++	if (gr_acl_is_enabled() && !(current->acl->mode & GR_KERNELAUTH)) {
++		error = -EPERM;
++		goto out;
++	}
++
++#ifdef CONFIG_COMPAT
++	pax_open_kernel();
++	if (is_compat_task()) {
++		copy_gr_arg_wrapper = &copy_gr_arg_wrapper_compat;
++		copy_gr_arg = &copy_gr_arg_compat;
++		copy_acl_object_label = &copy_acl_object_label_compat;
++		copy_acl_subject_label = &copy_acl_subject_label_compat;
++		copy_acl_role_label = &copy_acl_role_label_compat;
++		copy_acl_ip_label = &copy_acl_ip_label_compat;
++		copy_role_allowed_ip = &copy_role_allowed_ip_compat;
++		copy_role_transition = &copy_role_transition_compat;
++		copy_sprole_pw = &copy_sprole_pw_compat;
++		copy_gr_hash_struct = &copy_gr_hash_struct_compat;
++		copy_pointer_from_array = &copy_pointer_from_array_compat;
++		get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_compat;
++	} else {
++		copy_gr_arg_wrapper = &copy_gr_arg_wrapper_normal;
++		copy_gr_arg = &copy_gr_arg_normal;
++		copy_acl_object_label = &copy_acl_object_label_normal;
++		copy_acl_subject_label = &copy_acl_subject_label_normal;
++		copy_acl_role_label = &copy_acl_role_label_normal;
++		copy_acl_ip_label = &copy_acl_ip_label_normal;
++		copy_role_allowed_ip = &copy_role_allowed_ip_normal;
++		copy_role_transition = &copy_role_transition_normal;
++		copy_sprole_pw = &copy_sprole_pw_normal;
++		copy_gr_hash_struct = &copy_gr_hash_struct_normal;
++		copy_pointer_from_array = &copy_pointer_from_array_normal;
++		get_gr_arg_wrapper_size = &get_gr_arg_wrapper_size_normal;
++	}
++	pax_close_kernel();
++#endif
++
++	req_count = get_gr_arg_wrapper_size();
++
++	if (count != req_count) {
++		gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)req_count);
++		error = -EINVAL;
++		goto out;
++	}
++
++	
++	if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) {
++		gr_auth_expires = 0;
++		gr_auth_attempts = 0;
++	}
++
++	error = copy_gr_arg_wrapper(buf, &uwrap);
++	if (error)
++		goto out;
++
++	error = copy_gr_arg(uwrap.arg, gr_usermode);
++	if (error)
++		goto out;
++
++	if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM &&
++	    gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
++	    time_after(gr_auth_expires, get_seconds())) {
++		error = -EBUSY;
++		goto out;
++	}
++
++	/* if non-root trying to do anything other than use a special role,
++	   do not attempt authentication, do not count towards authentication
++	   locking
++	 */
++
++	if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS &&
++	    gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM &&
++	    gr_is_global_nonroot(current_uid())) {
++		error = -EPERM;
++		goto out;
++	}
++
++	/* ensure pw and special role name are null terminated */
++
++	gr_usermode->pw[GR_PW_LEN - 1] = '\0';
++	gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0';
++
++	/* Okay. 
++	 * We have our enough of the argument structure..(we have yet
++	 * to copy_from_user the tables themselves) . Copy the tables
++	 * only if we need them, i.e. for loading operations. */
++
++	switch (gr_usermode->mode) {
++	case GR_STATUS:
++			if (gr_acl_is_enabled()) {
++				error = 1;
++				if (!gr_check_secure_terminal(current))
++					error = 3;
++			} else
++				error = 2;
++			goto out;
++	case GR_SHUTDOWN:
++		if (gr_acl_is_enabled() && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
++			stop_machine(gr_rbac_disable, NULL, NULL);
++			free_variables(false);
++			memset(gr_usermode, 0, sizeof(struct gr_arg));
++			memset(gr_system_salt, 0, GR_SALT_LEN);
++			memset(gr_system_sum, 0, GR_SHA_LEN);
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG);
++		} else if (gr_acl_is_enabled()) {
++			gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG);
++			error = -EPERM;
++		} else {
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG);
++			error = -EAGAIN;
++		}
++		break;
++	case GR_ENABLE:
++		if (!gr_acl_is_enabled() && !(error2 = gracl_init(gr_usermode)))
++			gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION);
++		else {
++			if (gr_acl_is_enabled())
++				error = -EAGAIN;
++			else
++				error = error2;
++			gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION);
++		}
++		break;
++	case GR_OLDRELOAD:
++		oldmode = 1;
++	case GR_RELOAD:
++		if (!gr_acl_is_enabled()) {
++			gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION);
++			error = -EAGAIN;
++		} else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
++			error2 = gracl_reload(gr_usermode, oldmode);
++			if (!error2)
++				gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION);
++			else {
++				gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
++				error = error2;
++			}
++		} else {
++			gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION);
++			error = -EPERM;
++		}
++		break;
++	case GR_SEGVMOD:
++		if (unlikely(!gr_acl_is_enabled())) {
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG);
++			error = -EAGAIN;
++			break;
++		}
++
++		if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) {
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG);
++			if (gr_usermode->segv_device && gr_usermode->segv_inode) {
++				struct acl_subject_label *segvacl;
++				segvacl =
++				    lookup_acl_subj_label(gr_usermode->segv_inode,
++							  gr_usermode->segv_device,
++							  current->role);
++				if (segvacl) {
++					segvacl->crashes = 0;
++					segvacl->expires = 0;
++				}
++			} else if (gr_find_uid(gr_usermode->segv_uid) >= 0) {
++				gr_remove_uid(gr_usermode->segv_uid);
++			}
++		} else {
++			gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG);
++			error = -EPERM;
++		}
++		break;
++	case GR_SPROLE:
++	case GR_SPROLEPAM:
++		if (unlikely(!gr_acl_is_enabled())) {
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG);
++			error = -EAGAIN;
++			break;
++		}
++
++		if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) {
++			current->role->expires = 0;
++			current->role->auth_attempts = 0;
++		}
++
++		if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES &&
++		    time_after(current->role->expires, get_seconds())) {
++			error = -EBUSY;
++			goto out;
++		}
++
++		if (lookup_special_role_auth
++		    (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum)
++		    && ((!sprole_salt && !sprole_sum)
++			|| !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) {
++			char *p = "";
++			assign_special_role(gr_usermode->sp_role);
++			read_lock(&tasklist_lock);
++			if (current->real_parent)
++				p = current->real_parent->role->rolename;
++			read_unlock(&tasklist_lock);
++			gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG,
++					p, acl_sp_role_value);
++		} else {
++			gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role);
++			error = -EPERM;
++			if(!(current->role->auth_attempts++))
++				current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
++
++			goto out;
++		}
++		break;
++	case GR_UNSPROLE:
++		if (unlikely(!gr_acl_is_enabled())) {
++			gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG);
++			error = -EAGAIN;
++			break;
++		}
++
++		if (current->role->roletype & GR_ROLE_SPECIAL) {
++			char *p = "";
++			int i = 0;
++
++			read_lock(&tasklist_lock);
++			if (current->real_parent) {
++				p = current->real_parent->role->rolename;
++				i = current->real_parent->acl_role_id;
++			}
++			read_unlock(&tasklist_lock);
++
++			gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i);
++			gr_set_acls(1);
++		} else {
++			error = -EPERM;
++			goto out;
++		}
++		break;
++	default:
++		gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode);
++		error = -EINVAL;
++		break;
++	}
++
++	if (error != -EPERM)
++		goto out;
++
++	if(!(gr_auth_attempts++))
++		gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT;
++
++      out:
++	mutex_unlock(&gr_dev_mutex);
++
++	if (!error)
++		error = req_count;
++
++	return error;
++}
++
++int
++gr_set_acls(const int type)
++{
++	struct task_struct *task, *task2;
++	struct acl_role_label *role = current->role;
++	struct acl_subject_label *subj;
++	__u16 acl_role_id = current->acl_role_id;
++	const struct cred *cred;
++	int ret;
++
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++	read_lock(&grsec_exec_file_lock);
++	do_each_thread(task2, task) {
++		/* check to see if we're called from the exit handler,
++		   if so, only replace ACLs that have inherited the admin
++		   ACL */
++
++		if (type && (task->role != role ||
++			     task->acl_role_id != acl_role_id))
++			continue;
++
++		task->acl_role_id = 0;
++		task->acl_sp_role = 0;
++		task->inherited = 0;
++
++		if (task->exec_file) {
++			cred = __task_cred(task);
++			task->role = __lookup_acl_role_label(polstate, task, GR_GLOBAL_UID(cred->uid), GR_GLOBAL_GID(cred->gid));
++			subj = __gr_get_subject_for_task(polstate, task, NULL, 1);
++			if (subj == NULL) {
++				ret = -EINVAL;
++				read_unlock(&grsec_exec_file_lock);
++				read_unlock(&tasklist_lock);
++				rcu_read_unlock();
++				gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task_pid_nr(task));
++				return ret;
++			}
++			__gr_apply_subject_to_task(polstate, task, subj);
++		} else {
++			// it's a kernel process
++			task->role = polstate->kernel_role;
++			task->acl = polstate->kernel_role->root_label;
++#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN
++			task->acl->mode &= ~GR_PROCFIND;
++#endif
++		}
++	} while_each_thread(task2, task);
++	read_unlock(&grsec_exec_file_lock);
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++
++	return 0;
++}
+diff --git a/grsecurity/gracl_res.c b/grsecurity/gracl_res.c
+new file mode 100644
+index 0000000..39645c9
+--- /dev/null
++++ b/grsecurity/gracl_res.c
+@@ -0,0 +1,68 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/gracl.h>
++#include <linux/grinternal.h>
++
++static const char *restab_log[] = {
++	[RLIMIT_CPU] = "RLIMIT_CPU",
++	[RLIMIT_FSIZE] = "RLIMIT_FSIZE",
++	[RLIMIT_DATA] = "RLIMIT_DATA",
++	[RLIMIT_STACK] = "RLIMIT_STACK",
++	[RLIMIT_CORE] = "RLIMIT_CORE",
++	[RLIMIT_RSS] = "RLIMIT_RSS",
++	[RLIMIT_NPROC] = "RLIMIT_NPROC",
++	[RLIMIT_NOFILE] = "RLIMIT_NOFILE",
++	[RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK",
++	[RLIMIT_AS] = "RLIMIT_AS",
++	[RLIMIT_LOCKS] = "RLIMIT_LOCKS",
++	[RLIMIT_SIGPENDING] = "RLIMIT_SIGPENDING",
++	[RLIMIT_MSGQUEUE] = "RLIMIT_MSGQUEUE",
++	[RLIMIT_NICE] = "RLIMIT_NICE",
++	[RLIMIT_RTPRIO] = "RLIMIT_RTPRIO",
++	[RLIMIT_RTTIME] = "RLIMIT_RTTIME",
++	[GR_CRASH_RES] = "RLIMIT_CRASH"
++};
++
++void
++gr_log_resource(const struct task_struct *task,
++		const int res, const unsigned long wanted, const int gt)
++{
++	const struct cred *cred;
++	unsigned long rlim;
++
++	if (!gr_acl_is_enabled() && !grsec_resource_logging)
++		return;
++
++	// not yet supported resource
++	if (unlikely(!restab_log[res]))
++		return;
++
++	if (res == RLIMIT_CPU || res == RLIMIT_RTTIME)
++		rlim = task_rlimit_max(task, res);
++	else
++		rlim = task_rlimit(task, res);
++
++	if (likely((rlim == RLIM_INFINITY) || (gt && wanted <= rlim) || (!gt && wanted < rlim)))
++		return;
++
++	rcu_read_lock();
++	cred = __task_cred(task);
++
++	if (res == RLIMIT_NPROC && 
++	    (cap_raised(cred->cap_effective, CAP_SYS_ADMIN) || 
++	     cap_raised(cred->cap_effective, CAP_SYS_RESOURCE)))
++		goto out_rcu_unlock;
++	else if (res == RLIMIT_MEMLOCK &&
++		 cap_raised(cred->cap_effective, CAP_IPC_LOCK))
++		goto out_rcu_unlock;
++	else if (res == RLIMIT_NICE && cap_raised(cred->cap_effective, CAP_SYS_NICE))
++		goto out_rcu_unlock;
++	rcu_read_unlock();
++
++	gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], rlim);
++
++	return;
++out_rcu_unlock:
++	rcu_read_unlock();
++	return;
++}
+diff --git a/grsecurity/gracl_segv.c b/grsecurity/gracl_segv.c
+new file mode 100644
+index 0000000..35d9e65
+--- /dev/null
++++ b/grsecurity/gracl_segv.c
+@@ -0,0 +1,324 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <asm/uaccess.h>
++#include <asm/errno.h>
++#include <asm/mman.h>
++#include <net/sock.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/sched.h>
++#include <linux/timer.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
++#include <linux/magic.h>
++#include <linux/pagemap.h>
++#include "../fs/btrfs/async-thread.h"
++#include "../fs/btrfs/ctree.h"
++#include "../fs/btrfs/btrfs_inode.h"
++#endif
++
++static struct crash_uid *uid_set;
++static unsigned short uid_used;
++static DEFINE_SPINLOCK(gr_uid_lock);
++extern rwlock_t gr_inode_lock;
++extern struct acl_subject_label *
++	lookup_acl_subj_label(const u64 inode, const dev_t dev,
++			      struct acl_role_label *role);
++
++static inline dev_t __get_dev(const struct dentry *dentry)
++{
++#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
++	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
++		return BTRFS_I(dentry->d_inode)->root->anon_dev;
++	else
++#endif
++		return dentry->d_sb->s_dev;
++}
++
++static inline u64 __get_ino(const struct dentry *dentry)
++{
++#if defined(CONFIG_BTRFS_FS) || defined(CONFIG_BTRFS_FS_MODULE)
++	if (dentry->d_sb->s_magic == BTRFS_SUPER_MAGIC)
++		return btrfs_ino(dentry->d_inode);
++	else
++#endif
++		return dentry->d_inode->i_ino;
++}
++
++int
++gr_init_uidset(void)
++{
++	uid_set =
++	    kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL);
++	uid_used = 0;
++
++	return uid_set ? 1 : 0;
++}
++
++void
++gr_free_uidset(void)
++{
++	if (uid_set) {
++		struct crash_uid *tmpset;
++		spin_lock(&gr_uid_lock);
++		tmpset = uid_set;
++		uid_set = NULL;
++		uid_used = 0;
++		spin_unlock(&gr_uid_lock);
++		if (tmpset)
++			kfree(tmpset);
++	}
++
++	return;
++}
++
++int
++gr_find_uid(const uid_t uid)
++{
++	struct crash_uid *tmp = uid_set;
++	uid_t buid;
++	int low = 0, high = uid_used - 1, mid;
++
++	while (high >= low) {
++		mid = (low + high) >> 1;
++		buid = tmp[mid].uid;
++		if (buid == uid)
++			return mid;
++		if (buid > uid)
++			high = mid - 1;
++		if (buid < uid)
++			low = mid + 1;
++	}
++
++	return -1;
++}
++
++static void
++gr_insertsort(void)
++{
++	unsigned short i, j;
++	struct crash_uid index;
++
++	for (i = 1; i < uid_used; i++) {
++		index = uid_set[i];
++		j = i;
++		while ((j > 0) && uid_set[j - 1].uid > index.uid) {
++			uid_set[j] = uid_set[j - 1];
++			j--;
++		}
++		uid_set[j] = index;
++	}
++
++	return;
++}
++
++static void
++gr_insert_uid(const kuid_t kuid, const unsigned long expires)
++{
++	int loc;
++	uid_t uid = GR_GLOBAL_UID(kuid);
++
++	if (uid_used == GR_UIDTABLE_MAX)
++		return;
++
++	loc = gr_find_uid(uid);
++
++	if (loc >= 0) {
++		uid_set[loc].expires = expires;
++		return;
++	}
++
++	uid_set[uid_used].uid = uid;
++	uid_set[uid_used].expires = expires;
++	uid_used++;
++
++	gr_insertsort();
++
++	return;
++}
++
++void
++gr_remove_uid(const unsigned short loc)
++{
++	unsigned short i;
++
++	for (i = loc + 1; i < uid_used; i++)
++		uid_set[i - 1] = uid_set[i];
++
++	uid_used--;
++
++	return;
++}
++
++int
++gr_check_crash_uid(const kuid_t kuid)
++{
++	int loc;
++	int ret = 0;
++	uid_t uid;
++
++	if (unlikely(!gr_acl_is_enabled()))
++		return 0;
++
++	uid = GR_GLOBAL_UID(kuid);
++
++	spin_lock(&gr_uid_lock);
++	loc = gr_find_uid(uid);
++
++	if (loc < 0)
++		goto out_unlock;
++
++	if (time_before_eq(uid_set[loc].expires, get_seconds()))
++		gr_remove_uid(loc);
++	else
++		ret = 1;
++
++out_unlock:
++	spin_unlock(&gr_uid_lock);
++	return ret;
++}
++
++static int
++proc_is_setxid(const struct cred *cred)
++{
++	if (!uid_eq(cred->uid, cred->euid) || !uid_eq(cred->uid, cred->suid) ||
++	    !uid_eq(cred->uid, cred->fsuid))
++		return 1;
++	if (!gid_eq(cred->gid, cred->egid) || !gid_eq(cred->gid, cred->sgid) ||
++	    !gid_eq(cred->gid, cred->fsgid))
++		return 1;
++
++	return 0;
++}
++
++extern int gr_fake_force_sig(int sig, struct task_struct *t);
++
++void
++gr_handle_crash(struct task_struct *task, const int sig)
++{
++	struct acl_subject_label *curr;
++	struct task_struct *tsk, *tsk2;
++	const struct cred *cred;
++	const struct cred *cred2;
++
++	if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL)
++		return;
++
++	if (unlikely(!gr_acl_is_enabled()))
++		return;
++
++	curr = task->acl;
++
++	if (!(curr->resmask & (1U << GR_CRASH_RES)))
++		return;
++
++	if (time_before_eq(curr->expires, get_seconds())) {
++		curr->expires = 0;
++		curr->crashes = 0;
++	}
++
++	curr->crashes++;
++
++	if (!curr->expires)
++		curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max;
++
++	if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
++	    time_after(curr->expires, get_seconds())) {
++		rcu_read_lock();
++		cred = __task_cred(task);
++		if (gr_is_global_nonroot(cred->uid) && proc_is_setxid(cred)) {
++			gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
++			spin_lock(&gr_uid_lock);
++			gr_insert_uid(cred->uid, curr->expires);
++			spin_unlock(&gr_uid_lock);
++			curr->expires = 0;
++			curr->crashes = 0;
++			read_lock(&tasklist_lock);
++			do_each_thread(tsk2, tsk) {
++				cred2 = __task_cred(tsk);
++				if (tsk != task && uid_eq(cred2->uid, cred->uid))
++					gr_fake_force_sig(SIGKILL, tsk);
++			} while_each_thread(tsk2, tsk);
++			read_unlock(&tasklist_lock);
++		} else {
++			gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max);
++			read_lock(&tasklist_lock);
++			read_lock(&grsec_exec_file_lock);
++			do_each_thread(tsk2, tsk) {
++				if (likely(tsk != task)) {
++					// if this thread has the same subject as the one that triggered
++					// RES_CRASH and it's the same binary, kill it
++					if (tsk->acl == task->acl && gr_is_same_file(tsk->exec_file, task->exec_file))
++						gr_fake_force_sig(SIGKILL, tsk);
++				}
++			} while_each_thread(tsk2, tsk);
++			read_unlock(&grsec_exec_file_lock);
++			read_unlock(&tasklist_lock);
++		}
++		rcu_read_unlock();
++	}
++
++	return;
++}
++
++int
++gr_check_crash_exec(const struct file *filp)
++{
++	struct acl_subject_label *curr;
++	struct dentry *dentry;
++
++	if (unlikely(!gr_acl_is_enabled()))
++		return 0;
++
++	read_lock(&gr_inode_lock);
++	dentry = filp->f_path.dentry;
++	curr = lookup_acl_subj_label(__get_ino(dentry), __get_dev(dentry),
++				     current->role);
++	read_unlock(&gr_inode_lock);
++
++	if (!curr || !(curr->resmask & (1U << GR_CRASH_RES)) ||
++	    (!curr->crashes && !curr->expires))
++		return 0;
++
++	if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) &&
++	    time_after(curr->expires, get_seconds()))
++		return 1;
++	else if (time_before_eq(curr->expires, get_seconds())) {
++		curr->crashes = 0;
++		curr->expires = 0;
++	}
++
++	return 0;
++}
++
++void
++gr_handle_alertkill(struct task_struct *task)
++{
++	struct acl_subject_label *curracl;
++	__u32 curr_ip;
++	struct task_struct *p, *p2;
++
++	if (unlikely(!gr_acl_is_enabled()))
++		return;
++
++	curracl = task->acl;
++	curr_ip = task->signal->curr_ip;
++
++	if ((curracl->mode & GR_KILLIPPROC) && curr_ip) {
++		read_lock(&tasklist_lock);
++		do_each_thread(p2, p) {
++			if (p->signal->curr_ip == curr_ip)
++				gr_fake_force_sig(SIGKILL, p);
++		} while_each_thread(p2, p);
++		read_unlock(&tasklist_lock);
++	} else if (curracl->mode & GR_KILLPROC)
++		gr_fake_force_sig(SIGKILL, task);
++
++	return;
++}
+diff --git a/grsecurity/gracl_shm.c b/grsecurity/gracl_shm.c
+new file mode 100644
+index 0000000..98011b0
+--- /dev/null
++++ b/grsecurity/gracl_shm.c
+@@ -0,0 +1,40 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/ipc.h>
++#include <linux/gracl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++		const time_t shm_createtime, const kuid_t cuid, const int shmid)
++{
++	struct task_struct *task;
++
++	if (!gr_acl_is_enabled())
++		return 1;
++
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++
++	task = find_task_by_vpid(shm_cprid);
++
++	if (unlikely(!task))
++		task = find_task_by_vpid(shm_lapid);
++
++	if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) ||
++			      (task_pid_nr(task) == shm_lapid)) &&
++		     (task->acl->mode & GR_PROTSHM) &&
++		     (task->acl != current->acl))) {
++		read_unlock(&tasklist_lock);
++		rcu_read_unlock();
++		gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, GR_GLOBAL_UID(cuid), shm_cprid, shmid);
++		return 0;
++	}
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++
++	return 1;
++}
+diff --git a/grsecurity/grsec_chdir.c b/grsecurity/grsec_chdir.c
+new file mode 100644
+index 0000000..bc0be01
+--- /dev/null
++++ b/grsecurity/grsec_chdir.c
+@@ -0,0 +1,19 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
++	if ((grsec_enable_chdir && grsec_enable_group &&
++	     in_group_p(grsec_audit_gid)) || (grsec_enable_chdir &&
++					      !grsec_enable_group)) {
++		gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt);
++	}
++#endif
++	return;
++}
+diff --git a/grsecurity/grsec_chroot.c b/grsecurity/grsec_chroot.c
+new file mode 100644
+index 0000000..2a43673
+--- /dev/null
++++ b/grsecurity/grsec_chroot.c
+@@ -0,0 +1,469 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/mount.h>
++#include <linux/types.h>
++#include "../fs/mount.h"
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
++int gr_init_ran;
++#endif
++
++void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	struct dentry *tmpd = dentry;
++
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++
++	while (tmpd != mnt->mnt_root) {
++		atomic_inc(&tmpd->chroot_refcnt);
++		tmpd = tmpd->d_parent;
++	}
++	atomic_inc(&tmpd->chroot_refcnt);
++
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++#endif
++}
++
++void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	struct dentry *tmpd = dentry;
++
++	read_seqlock_excl(&mount_lock);
++	write_seqlock(&rename_lock);
++
++	while (tmpd != mnt->mnt_root) {
++		atomic_dec(&tmpd->chroot_refcnt);
++		tmpd = tmpd->d_parent;
++	}
++	atomic_dec(&tmpd->chroot_refcnt);
++
++	write_sequnlock(&rename_lock);
++	read_sequnlock_excl(&mount_lock);
++#endif
++}
++
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++static struct dentry *get_closest_chroot(struct dentry *dentry)
++{
++	write_seqlock(&rename_lock);
++	do {
++		if (atomic_read(&dentry->chroot_refcnt)) {
++			write_sequnlock(&rename_lock);
++			return dentry;
++		}
++		dentry = dentry->d_parent;
++	} while (!IS_ROOT(dentry));
++	write_sequnlock(&rename_lock);
++	return NULL;
++}
++#endif
++
++int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
++			 struct dentry *newdentry, struct vfsmount *newmnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	struct dentry *chroot;
++
++	if (unlikely(!grsec_enable_chroot_rename))
++		return 0;
++
++	if (likely(!proc_is_chrooted(current) && gr_is_global_root(current_uid())))
++		return 0;
++
++	chroot = get_closest_chroot(olddentry);
++
++	if (chroot == NULL)
++		return 0;
++
++	if (is_subdir(newdentry, chroot))
++		return 0;
++
++	gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_RENAME_MSG, olddentry, oldmnt);
++
++	return 1;
++#else
++	return 0;
++#endif
++}
++
++void gr_set_chroot_entries(struct task_struct *task, const struct path *path)
++{
++#ifdef CONFIG_GRKERNSEC
++	if (task_pid_nr(task) > 1 && path->dentry != init_task.fs->root.dentry &&
++	    		     path->dentry != task->nsproxy->mnt_ns->root->mnt.mnt_root
++#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
++			     && gr_init_ran
++#endif
++	   )
++		task->gr_is_chrooted = 1;
++	else {
++#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
++		if (task_pid_nr(task) == 1 && !gr_init_ran)
++			gr_init_ran = 1;
++#endif
++		task->gr_is_chrooted = 0;
++	}
++
++	task->gr_chroot_dentry = path->dentry;
++#endif
++	return;
++}
++
++void gr_clear_chroot_entries(struct task_struct *task)
++{
++#ifdef CONFIG_GRKERNSEC
++	task->gr_is_chrooted = 0;
++	task->gr_chroot_dentry = NULL;
++#endif
++	return;
++}	
++
++int
++gr_handle_chroot_unix(const pid_t pid)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++	struct task_struct *p;
++
++	if (unlikely(!grsec_enable_chroot_unix))
++		return 1;
++
++	if (likely(!proc_is_chrooted(current)))
++		return 1;
++
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++	p = find_task_by_vpid_unrestricted(pid);
++	if (unlikely(p && !have_same_root(current, p))) {
++		read_unlock(&tasklist_lock);
++		rcu_read_unlock();
++		gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG);
++		return 0;
++	}
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++#endif
++	return 1;
++}
++
++int
++gr_handle_chroot_nice(void)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++	if (grsec_enable_chroot_nice && proc_is_chrooted(current)) {
++		gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_chroot_setpriority(struct task_struct *p, const int niceval)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++	if (grsec_enable_chroot_nice && (niceval < task_nice(p))
++			&& proc_is_chrooted(current)) {
++		gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, task_pid_nr(p));
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_chroot_fowner(struct pid *pid, enum pid_type type)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++	struct task_struct *p;
++	int ret = 0;
++	if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || !pid)
++		return ret;
++
++	read_lock(&tasklist_lock);
++	do_each_pid_task(pid, type, p) {
++		if (!have_same_root(current, p)) {
++			ret = 1;
++			goto out;
++		}
++	} while_each_pid_task(pid, type, p);
++out:
++	read_unlock(&tasklist_lock);
++	return ret;
++#endif
++	return 0;
++}
++
++int
++gr_pid_is_chrooted(struct task_struct *p)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++	if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL)
++		return 0;
++
++	if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) ||
++	    !have_same_root(current, p)) {
++		return 1;
++	}
++#endif
++	return 0;
++}
++
++EXPORT_SYMBOL_GPL(gr_pid_is_chrooted);
++
++#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR)
++int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt)
++{
++	struct path path, currentroot;
++	int ret = 0;
++
++	path.dentry = (struct dentry *)u_dentry;
++	path.mnt = (struct vfsmount *)u_mnt;
++	get_fs_root(current->fs, &currentroot);
++	if (path_is_under(&path, &currentroot))
++		ret = 1;
++	path_put(&currentroot);
++
++	return ret;
++}
++#endif
++
++int
++gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++	if (!grsec_enable_chroot_fchdir)
++		return 1;
++
++	if (!proc_is_chrooted(current))
++		return 1;
++	else if (!gr_is_outside_chroot(u_dentry, u_mnt)) {
++		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt);
++		return 0;
++	}
++#endif
++	return 1;
++}
++
++int
++gr_chroot_fhandle(void)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++	if (!grsec_enable_chroot_fchdir)
++		return 1;
++
++	if (!proc_is_chrooted(current))
++		return 1;
++	else {
++		gr_log_noargs(GR_DONT_AUDIT, GR_CHROOT_FHANDLE_MSG);
++		return 0;
++	}
++#endif
++	return 1;
++}
++
++int
++gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++		const time_t shm_createtime)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
++	struct task_struct *p;
++	time_t starttime;
++
++	if (unlikely(!grsec_enable_chroot_shmat))
++		return 1;
++
++	if (likely(!proc_is_chrooted(current)))
++		return 1;
++
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++
++	if ((p = find_task_by_vpid_unrestricted(shm_cprid))) {
++		starttime = p->start_time.tv_sec;
++		if (time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime)) {
++			if (have_same_root(current, p)) {
++				goto allow;
++			} else {
++				read_unlock(&tasklist_lock);
++				rcu_read_unlock();
++				gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
++				return 0;
++			}
++		}
++		/* creator exited, pid reuse, fall through to next check */
++	}
++	if ((p = find_task_by_vpid_unrestricted(shm_lapid))) {
++		if (unlikely(!have_same_root(current, p))) {
++			read_unlock(&tasklist_lock);
++			rcu_read_unlock();
++			gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG);
++			return 0;
++		}
++	}
++
++allow:
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++#endif
++	return 1;
++}
++
++void
++gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
++	if (grsec_enable_chroot_execlog && proc_is_chrooted(current))
++		gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt);
++#endif
++	return;
++}
++
++int
++gr_handle_chroot_mknod(const struct dentry *dentry,
++		       const struct vfsmount *mnt, const int mode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
++	if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) && 
++	    proc_is_chrooted(current)) {
++		gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_chroot_mount(const struct dentry *dentry,
++		       const struct vfsmount *mnt, const char *dev_name)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
++	if (grsec_enable_chroot_mount && proc_is_chrooted(current)) {
++		gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name ? dev_name : "none", dentry, mnt);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_chroot_pivot(void)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
++	if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) {
++		gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
++	if (grsec_enable_chroot_double && proc_is_chrooted(current) &&
++	    !gr_is_outside_chroot(dentry, mnt)) {
++		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
++
++extern const char *captab_log[];
++extern int captab_log_entries;
++
++int
++gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
++		kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
++		if (cap_raised(chroot_caps, cap)) {
++			if (cap_raised(cred->cap_effective, cap) && cap < captab_log_entries) {
++				gr_log_cap(GR_DONT_AUDIT, GR_CAP_CHROOT_MSG, task, captab_log[cap]);
++			}
++			return 0;
++		}
++	}
++#endif
++	return 1;
++}
++
++int
++gr_chroot_is_capable(const int cap)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	return gr_task_chroot_is_capable(current, current_cred(), cap);
++#endif
++	return 1;
++}
++
++int
++gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	if (grsec_enable_chroot_caps && proc_is_chrooted(task)) {
++		kernel_cap_t chroot_caps = GR_CHROOT_CAPS;
++		if (cap_raised(chroot_caps, cap)) {
++			return 0;
++		}
++	}
++#endif
++	return 1;
++}
++
++int
++gr_chroot_is_capable_nolog(const int cap)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	return gr_task_chroot_is_capable_nolog(current, cap);
++#endif
++	return 1;
++}
++
++int
++gr_handle_chroot_sysctl(const int op)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
++	if (grsec_enable_chroot_sysctl && (op & MAY_WRITE) &&
++	    proc_is_chrooted(current))
++		return -EACCES;
++#endif
++	return 0;
++}
++
++void
++gr_handle_chroot_chdir(const struct path *path)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
++	if (grsec_enable_chroot_chdir)
++		set_fs_pwd(current->fs, path);
++#endif
++	return;
++}
++
++int
++gr_handle_chroot_chmod(const struct dentry *dentry,
++		       const struct vfsmount *mnt, const int mode)
++{
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
++	/* allow chmod +s on directories, but not files */
++	if (grsec_enable_chroot_chmod && !S_ISDIR(dentry->d_inode->i_mode) &&
++	    ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) &&
++	    proc_is_chrooted(current)) {
++		gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_disabled.c b/grsecurity/grsec_disabled.c
+new file mode 100644
+index 0000000..7e8cbe4
+--- /dev/null
++++ b/grsecurity/grsec_disabled.c
+@@ -0,0 +1,444 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/kdev_t.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/ip.h>
++#include <linux/skbuff.h>
++#include <linux/sysctl.h>
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++void
++pax_set_initial_flags(struct linux_binprm *bprm)
++{
++	return;
++}
++#endif
++
++#ifdef CONFIG_SYSCTL
++__u32
++gr_handle_sysctl(const struct ctl_table * table, const int op)
++{
++	return 0;
++}
++#endif
++
++#ifdef CONFIG_TASKSTATS
++int gr_is_taskstats_denied(int pid)
++{
++	return 0;
++}
++#endif
++
++int
++gr_acl_is_enabled(void)
++{
++	return 0;
++}
++
++int
++gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap)
++{
++	return 0;
++}
++
++void
++gr_handle_proc_create(const struct dentry *dentry, const struct inode *inode) 
++{
++	return;
++}
++
++int
++gr_handle_rawio(const struct inode *inode)
++{
++	return 0;
++}
++
++void
++gr_acl_handle_psacct(struct task_struct *task, const long code)
++{
++	return;
++}
++
++int
++gr_handle_ptrace(struct task_struct *task, const long request)
++{
++	return 0;
++}
++
++int
++gr_handle_proc_ptrace(struct task_struct *task)
++{
++	return 0;
++}
++
++int
++gr_set_acls(const int type)
++{
++	return 0;
++}
++
++int
++gr_check_hidden_task(const struct task_struct *tsk)
++{
++	return 0;
++}
++
++int
++gr_check_protected_task(const struct task_struct *task)
++{
++	return 0;
++}
++
++int
++gr_check_protected_task_fowner(struct pid *pid, enum pid_type type)
++{
++	return 0;
++}
++
++void
++gr_copy_label(struct task_struct *tsk)
++{
++	return;
++}
++
++void
++gr_set_pax_flags(struct task_struct *task)
++{
++	return;
++}
++
++int
++gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt,
++		  const int unsafe_share)
++{
++	return 0;
++}
++
++void
++gr_handle_delete(const u64 ino, const dev_t dev)
++{
++	return;
++}
++
++void
++gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt)
++{
++	return;
++}
++
++void
++gr_handle_crash(struct task_struct *task, const int sig)
++{
++	return;
++}
++
++int
++gr_check_crash_exec(const struct file *filp)
++{
++	return 0;
++}
++
++int
++gr_check_crash_uid(const kuid_t uid)
++{
++	return 0;
++}
++
++void
++gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
++		 struct dentry *old_dentry,
++		 struct dentry *new_dentry,
++		 struct vfsmount *mnt, const __u8 replace)
++{
++	return;
++}
++
++int
++gr_search_socket(const int family, const int type, const int protocol)
++{
++	return 1;
++}
++
++int
++gr_search_connectbind(const int mode, const struct socket *sock,
++		      const struct sockaddr_in *addr)
++{
++	return 0;
++}
++
++void
++gr_handle_alertkill(struct task_struct *task)
++{
++	return;
++}
++
++__u32
++gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_hidden_file(const struct dentry * dentry,
++			  const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt,
++		   int acc_mode)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++int
++gr_acl_handle_mmap(const struct file *file, const unsigned long prot,
++		   unsigned int *vm_flags)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_truncate(const struct dentry * dentry,
++		       const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_access(const struct dentry * dentry,
++		     const struct vfsmount * mnt, const int fmode)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt,
++		    umode_t *mode)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_setxattr(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_removexattr(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++void
++grsecurity_init(void)
++{
++	return;
++}
++
++umode_t gr_acl_umask(void)
++{
++	return 0;
++}
++
++__u32
++gr_acl_handle_mknod(const struct dentry * new_dentry,
++		    const struct dentry * parent_dentry,
++		    const struct vfsmount * parent_mnt,
++		    const int mode)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_mkdir(const struct dentry * new_dentry,
++		    const struct dentry * parent_dentry,
++		    const struct vfsmount * parent_mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_symlink(const struct dentry * new_dentry,
++		      const struct dentry * parent_dentry,
++		      const struct vfsmount * parent_mnt, const struct filename *from)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_link(const struct dentry * new_dentry,
++		   const struct dentry * parent_dentry,
++		   const struct vfsmount * parent_mnt,
++		   const struct dentry * old_dentry,
++		   const struct vfsmount * old_mnt, const struct filename *to)
++{
++	return 1;
++}
++
++int
++gr_acl_handle_rename(const struct dentry *new_dentry,
++		     const struct dentry *parent_dentry,
++		     const struct vfsmount *parent_mnt,
++		     const struct dentry *old_dentry,
++		     const struct inode *old_parent_inode,
++		     const struct vfsmount *old_mnt, const struct filename *newname)
++{
++	return 0;
++}
++
++int
++gr_acl_handle_filldir(const struct file *file, const char *name,
++		      const int namelen, const u64 ino)
++{
++	return 1;
++}
++
++int
++gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++		const time_t shm_createtime, const kuid_t cuid, const int shmid)
++{
++	return 1;
++}
++
++int
++gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr)
++{
++	return 0;
++}
++
++int
++gr_search_accept(const struct socket *sock)
++{
++	return 0;
++}
++
++int
++gr_search_listen(const struct socket *sock)
++{
++	return 0;
++}
++
++int
++gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr)
++{
++	return 0;
++}
++
++__u32
++gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt)
++{
++	return 1;
++}
++
++__u32
++gr_acl_handle_creat(const struct dentry * dentry,
++		    const struct dentry * p_dentry,
++		    const struct vfsmount * p_mnt, int open_flags, int acc_mode,
++		    const int imode)
++{
++	return 1;
++}
++
++void
++gr_acl_handle_exit(void)
++{
++	return;
++}
++
++int
++gr_acl_handle_mprotect(const struct file *file, const unsigned long prot)
++{
++	return 1;
++}
++
++void
++gr_set_role_label(const kuid_t uid, const kgid_t gid)
++{
++	return;
++}
++
++int
++gr_acl_handle_procpidmem(const struct task_struct *task)
++{
++	return 0;
++}
++
++int
++gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb)
++{
++	return 0;
++}
++
++int
++gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr)
++{
++	return 0;
++}
++
++int
++gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs)
++{
++	return 0;
++}
++
++int
++gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs)
++{
++	return 0;
++}
++
++int gr_acl_enable_at_secure(void)
++{
++	return 0;
++}
++
++dev_t gr_get_dev_from_dentry(struct dentry *dentry)
++{
++	return dentry->d_sb->s_dev;
++}
++
++u64 gr_get_ino_from_dentry(struct dentry *dentry)
++{
++	return dentry->d_inode->i_ino;
++}
++
++void gr_put_exec_file(struct task_struct *task)
++{
++	return;
++}
++
++#ifdef CONFIG_SECURITY
++EXPORT_SYMBOL_GPL(gr_check_user_change);
++EXPORT_SYMBOL_GPL(gr_check_group_change);
++#endif
+diff --git a/grsecurity/grsec_exec.c b/grsecurity/grsec_exec.c
+new file mode 100644
+index 0000000..14638ff
+--- /dev/null
++++ b/grsecurity/grsec_exec.c
+@@ -0,0 +1,188 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/binfmts.h>
++#include <linux/fs.h>
++#include <linux/types.h>
++#include <linux/grdefs.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/capability.h>
++#include <linux/module.h>
++#include <linux/compat.h>
++
++#include <asm/uaccess.h>
++
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++static char gr_exec_arg_buf[132];
++static DEFINE_MUTEX(gr_exec_arg_mutex);
++#endif
++
++struct user_arg_ptr {
++#ifdef CONFIG_COMPAT
++	bool is_compat;
++#endif
++	union {
++		const char __user *const __user *native;
++#ifdef CONFIG_COMPAT
++		const compat_uptr_t __user *compat;
++#endif
++	} ptr;
++};
++
++extern const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr);
++
++void
++gr_handle_exec_args(struct linux_binprm *bprm, struct user_arg_ptr argv)
++{
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++	char *grarg = gr_exec_arg_buf;
++	unsigned int i, x, execlen = 0;
++	char c;
++
++	if (!((grsec_enable_execlog && grsec_enable_group &&
++	       in_group_p(grsec_audit_gid))
++	      || (grsec_enable_execlog && !grsec_enable_group)))
++		return;
++
++	mutex_lock(&gr_exec_arg_mutex);
++	memset(grarg, 0, sizeof(gr_exec_arg_buf));
++
++	for (i = 0; i < bprm->argc && execlen < 128; i++) {
++		const char __user *p;
++		unsigned int len;
++
++		p = get_user_arg_ptr(argv, i);
++		if (IS_ERR(p))
++			goto log;
++
++		len = strnlen_user(p, 128 - execlen);
++		if (len > 128 - execlen)
++			len = 128 - execlen;
++		else if (len > 0)
++			len--;
++		if (copy_from_user(grarg + execlen, p, len))
++			goto log;
++
++		/* rewrite unprintable characters */
++		for (x = 0; x < len; x++) {
++			c = *(grarg + execlen + x);
++			if (c < 32 || c > 126)
++				*(grarg + execlen + x) = ' ';
++		}
++
++		execlen += len;
++		*(grarg + execlen) = ' ';
++		*(grarg + execlen + 1) = '\0';
++		execlen++;
++	}
++
++      log:
++	gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry,
++			bprm->file->f_path.mnt, grarg);
++	mutex_unlock(&gr_exec_arg_mutex);
++#endif
++	return;
++}
++
++#ifdef CONFIG_GRKERNSEC
++extern int gr_acl_is_capable(const int cap);
++extern int gr_acl_is_capable_nolog(const int cap);
++extern int gr_task_acl_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
++extern int gr_task_acl_is_capable_nolog(const struct task_struct *task, const int cap);
++extern int gr_chroot_is_capable(const int cap);
++extern int gr_chroot_is_capable_nolog(const int cap);
++extern int gr_task_chroot_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
++extern int gr_task_chroot_is_capable_nolog(const struct task_struct *task, const int cap);
++#endif
++
++const char *captab_log[] = {
++	"CAP_CHOWN",
++	"CAP_DAC_OVERRIDE",
++	"CAP_DAC_READ_SEARCH",
++	"CAP_FOWNER",
++	"CAP_FSETID",
++	"CAP_KILL",
++	"CAP_SETGID",
++	"CAP_SETUID",
++	"CAP_SETPCAP",
++	"CAP_LINUX_IMMUTABLE",
++	"CAP_NET_BIND_SERVICE",
++	"CAP_NET_BROADCAST",
++	"CAP_NET_ADMIN",
++	"CAP_NET_RAW",
++	"CAP_IPC_LOCK",
++	"CAP_IPC_OWNER",
++	"CAP_SYS_MODULE",
++	"CAP_SYS_RAWIO",
++	"CAP_SYS_CHROOT",
++	"CAP_SYS_PTRACE",
++	"CAP_SYS_PACCT",
++	"CAP_SYS_ADMIN",
++	"CAP_SYS_BOOT",
++	"CAP_SYS_NICE",
++	"CAP_SYS_RESOURCE",
++	"CAP_SYS_TIME",
++	"CAP_SYS_TTY_CONFIG",
++	"CAP_MKNOD",
++	"CAP_LEASE",
++	"CAP_AUDIT_WRITE",
++	"CAP_AUDIT_CONTROL",
++	"CAP_SETFCAP",
++	"CAP_MAC_OVERRIDE",
++	"CAP_MAC_ADMIN",
++	"CAP_SYSLOG",
++	"CAP_WAKE_ALARM",
++	"CAP_BLOCK_SUSPEND"
++};
++
++int captab_log_entries = sizeof(captab_log)/sizeof(captab_log[0]);
++
++int gr_is_capable(const int cap)
++{
++#ifdef CONFIG_GRKERNSEC
++	if (gr_acl_is_capable(cap) && gr_chroot_is_capable(cap))
++		return 1;
++	return 0;
++#else
++	return 1;
++#endif
++}
++
++int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap)
++{
++#ifdef CONFIG_GRKERNSEC
++	if (gr_task_acl_is_capable(task, cred, cap) && gr_task_chroot_is_capable(task, cred, cap))
++		return 1;
++	return 0;
++#else
++	return 1;
++#endif
++}
++
++int gr_is_capable_nolog(const int cap)
++{
++#ifdef CONFIG_GRKERNSEC
++	if (gr_acl_is_capable_nolog(cap) && gr_chroot_is_capable_nolog(cap))
++		return 1;
++	return 0;
++#else
++	return 1;
++#endif
++}
++
++int gr_task_is_capable_nolog(const struct task_struct *task, const int cap)
++{
++#ifdef CONFIG_GRKERNSEC
++	if (gr_task_acl_is_capable_nolog(task, cap) && gr_task_chroot_is_capable_nolog(task, cap))
++		return 1;
++	return 0;
++#else
++	return 1;
++#endif
++}
++
++EXPORT_SYMBOL_GPL(gr_is_capable);
++EXPORT_SYMBOL_GPL(gr_is_capable_nolog);
++EXPORT_SYMBOL_GPL(gr_task_is_capable);
++EXPORT_SYMBOL_GPL(gr_task_is_capable_nolog);
+diff --git a/grsecurity/grsec_fifo.c b/grsecurity/grsec_fifo.c
+new file mode 100644
+index 0000000..06cc6ea
+--- /dev/null
++++ b/grsecurity/grsec_fifo.c
+@@ -0,0 +1,24 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt,
++	       const struct dentry *dir, const int flag, const int acc_mode)
++{
++#ifdef CONFIG_GRKERNSEC_FIFO
++	const struct cred *cred = current_cred();
++
++	if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) &&
++	    !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) &&
++	    !uid_eq(dentry->d_inode->i_uid, dir->d_inode->i_uid) &&
++	    !uid_eq(cred->fsuid, dentry->d_inode->i_uid)) {
++		if (!inode_permission(dentry->d_inode, acc_mode))
++			gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, GR_GLOBAL_UID(dentry->d_inode->i_uid), GR_GLOBAL_GID(dentry->d_inode->i_gid));
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_fork.c b/grsecurity/grsec_fork.c
+new file mode 100644
+index 0000000..8ca18bf
+--- /dev/null
++++ b/grsecurity/grsec_fork.c
+@@ -0,0 +1,23 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/errno.h>
++
++void
++gr_log_forkfail(const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_FORKFAIL
++	if (grsec_enable_forkfail && (retval == -EAGAIN || retval == -ENOMEM)) {
++		switch (retval) {
++			case -EAGAIN:
++				gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "EAGAIN");
++				break;
++			case -ENOMEM:
++				gr_log_str(GR_DONT_AUDIT, GR_FAILFORK_MSG, "ENOMEM");
++				break;
++		}
++	}
++#endif
++	return;
++}
+diff --git a/grsecurity/grsec_init.c b/grsecurity/grsec_init.c
+new file mode 100644
+index 0000000..4ed9e7d
+--- /dev/null
++++ b/grsecurity/grsec_init.c
+@@ -0,0 +1,290 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/gracl.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/percpu.h>
++#include <linux/module.h>
++
++int grsec_enable_ptrace_readexec;
++int grsec_enable_setxid;
++int grsec_enable_symlinkown;
++kgid_t grsec_symlinkown_gid;
++int grsec_enable_brute;
++int grsec_enable_link;
++int grsec_enable_dmesg;
++int grsec_enable_harden_ptrace;
++int grsec_enable_harden_ipc;
++int grsec_enable_fifo;
++int grsec_enable_execlog;
++int grsec_enable_signal;
++int grsec_enable_forkfail;
++int grsec_enable_audit_ptrace;
++int grsec_enable_time;
++int grsec_enable_group;
++kgid_t grsec_audit_gid;
++int grsec_enable_chdir;
++int grsec_enable_mount;
++int grsec_enable_rofs;
++int grsec_deny_new_usb;
++int grsec_enable_chroot_findtask;
++int grsec_enable_chroot_mount;
++int grsec_enable_chroot_shmat;
++int grsec_enable_chroot_fchdir;
++int grsec_enable_chroot_double;
++int grsec_enable_chroot_pivot;
++int grsec_enable_chroot_chdir;
++int grsec_enable_chroot_chmod;
++int grsec_enable_chroot_mknod;
++int grsec_enable_chroot_nice;
++int grsec_enable_chroot_execlog;
++int grsec_enable_chroot_caps;
++int grsec_enable_chroot_rename;
++int grsec_enable_chroot_sysctl;
++int grsec_enable_chroot_unix;
++int grsec_enable_tpe;
++kgid_t grsec_tpe_gid;
++int grsec_enable_blackhole;
++#ifdef CONFIG_IPV6_MODULE
++EXPORT_SYMBOL_GPL(grsec_enable_blackhole);
++#endif
++int grsec_lastack_retries;
++int grsec_enable_tpe_all;
++int grsec_enable_tpe_invert;
++int grsec_enable_socket_all;
++kgid_t grsec_socket_all_gid;
++int grsec_enable_socket_client;
++kgid_t grsec_socket_client_gid;
++int grsec_enable_socket_server;
++kgid_t grsec_socket_server_gid;
++int grsec_resource_logging;
++int grsec_disable_privio;
++int grsec_enable_log_rwxmaps;
++int grsec_lock;
++
++DEFINE_SPINLOCK(grsec_alert_lock);
++unsigned long grsec_alert_wtime = 0;
++unsigned long grsec_alert_fyet = 0;
++
++DEFINE_SPINLOCK(grsec_audit_lock);
++
++DEFINE_RWLOCK(grsec_exec_file_lock);
++
++char *gr_shared_page[4];
++
++char *gr_alert_log_fmt;
++char *gr_audit_log_fmt;
++char *gr_alert_log_buf;
++char *gr_audit_log_buf;
++
++extern struct gr_arg *gr_usermode;
++extern unsigned char *gr_system_salt;
++extern unsigned char *gr_system_sum;
++
++void __init
++grsecurity_init(void)
++{
++	int j;
++	/* create the per-cpu shared pages */
++
++#ifdef CONFIG_X86
++	memset((char *)(0x41a + PAGE_OFFSET), 0, 36);
++#endif
++
++	for (j = 0; j < 4; j++) {
++		gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE, __alignof__(unsigned long long));
++		if (gr_shared_page[j] == NULL) {
++			panic("Unable to allocate grsecurity shared page");
++			return;
++		}
++	}
++
++	/* allocate log buffers */
++	gr_alert_log_fmt = kmalloc(512, GFP_KERNEL);
++	if (!gr_alert_log_fmt) {
++		panic("Unable to allocate grsecurity alert log format buffer");
++		return;
++	}
++	gr_audit_log_fmt = kmalloc(512, GFP_KERNEL);
++	if (!gr_audit_log_fmt) {
++		panic("Unable to allocate grsecurity audit log format buffer");
++		return;
++	}
++	gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
++	if (!gr_alert_log_buf) {
++		panic("Unable to allocate grsecurity alert log buffer");
++		return;
++	}
++	gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL);
++	if (!gr_audit_log_buf) {
++		panic("Unable to allocate grsecurity audit log buffer");
++		return;
++	}
++
++	/* allocate memory for authentication structure */
++	gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL);
++	gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL);
++	gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL);
++
++	if (!gr_usermode || !gr_system_salt || !gr_system_sum) {
++		panic("Unable to allocate grsecurity authentication structure");
++		return;
++	}
++
++#ifdef CONFIG_GRKERNSEC_IO
++#if !defined(CONFIG_GRKERNSEC_SYSCTL_DISTRO)
++	grsec_disable_privio = 1;
++#elif defined(CONFIG_GRKERNSEC_SYSCTL_ON)
++	grsec_disable_privio = 1;
++#else
++	grsec_disable_privio = 0;
++#endif
++#endif
++
++#ifdef CONFIG_GRKERNSEC_TPE_INVERT
++	/* for backward compatibility, tpe_invert always defaults to on if
++	   enabled in the kernel
++	*/
++	grsec_enable_tpe_invert = 1;
++#endif
++
++#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON)
++#ifndef CONFIG_GRKERNSEC_SYSCTL
++	grsec_lock = 1;
++#endif
++
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	grsec_enable_log_rwxmaps = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
++	grsec_enable_group = 1;
++	grsec_audit_gid = KGIDT_INIT(CONFIG_GRKERNSEC_AUDIT_GID);
++#endif
++#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
++	grsec_enable_ptrace_readexec = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
++	grsec_enable_chdir = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
++	grsec_enable_harden_ptrace = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
++	grsec_enable_harden_ipc = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++	grsec_enable_mount = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_LINK
++	grsec_enable_link = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_BRUTE
++	grsec_enable_brute = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_DMESG
++	grsec_enable_dmesg = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	grsec_enable_blackhole = 1;
++	grsec_lastack_retries = 4;
++#endif
++#ifdef CONFIG_GRKERNSEC_FIFO
++	grsec_enable_fifo = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++	grsec_enable_execlog = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_SETXID
++	grsec_enable_setxid = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_SIGNAL
++	grsec_enable_signal = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_FORKFAIL
++	grsec_enable_forkfail = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_TIME
++	grsec_enable_time = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_RESLOG
++	grsec_resource_logging = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++	grsec_enable_chroot_findtask = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++	grsec_enable_chroot_unix = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
++	grsec_enable_chroot_mount = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++	grsec_enable_chroot_fchdir = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
++	grsec_enable_chroot_shmat = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
++	grsec_enable_audit_ptrace = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
++	grsec_enable_chroot_double = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
++	grsec_enable_chroot_pivot = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
++	grsec_enable_chroot_chdir = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
++	grsec_enable_chroot_chmod = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
++	grsec_enable_chroot_mknod = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++	grsec_enable_chroot_nice = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
++	grsec_enable_chroot_execlog = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	grsec_enable_chroot_caps = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	grsec_enable_chroot_rename = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
++	grsec_enable_chroot_sysctl = 1;
++#endif
++#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
++	grsec_enable_symlinkown = 1;
++	grsec_symlinkown_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SYMLINKOWN_GID);
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE
++	grsec_enable_tpe = 1;
++	grsec_tpe_gid = KGIDT_INIT(CONFIG_GRKERNSEC_TPE_GID);
++#ifdef CONFIG_GRKERNSEC_TPE_ALL
++	grsec_enable_tpe_all = 1;
++#endif
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
++	grsec_enable_socket_all = 1;
++	grsec_socket_all_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_ALL_GID);
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
++	grsec_enable_socket_client = 1;
++	grsec_socket_client_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_CLIENT_GID);
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++	grsec_enable_socket_server = 1;
++	grsec_socket_server_gid = KGIDT_INIT(CONFIG_GRKERNSEC_SOCKET_SERVER_GID);
++#endif
++#endif
++#ifdef CONFIG_GRKERNSEC_DENYUSB_FORCE
++	grsec_deny_new_usb = 1;
++#endif
++
++	return;
++}
+diff --git a/grsecurity/grsec_ipc.c b/grsecurity/grsec_ipc.c
+new file mode 100644
+index 0000000..1773300
+--- /dev/null
++++ b/grsecurity/grsec_ipc.c
+@@ -0,0 +1,48 @@
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/ipc.h>
++#include <linux/ipc_namespace.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++int
++gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode)
++{
++#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
++	int write;
++	int orig_granted_mode;
++	kuid_t euid;
++	kgid_t egid;
++
++	if (!grsec_enable_harden_ipc)
++		return 1;
++
++	euid = current_euid();
++	egid = current_egid();
++
++	write = requested_mode & 00002;
++	orig_granted_mode = ipcp->mode;
++
++	if (uid_eq(euid, ipcp->cuid) || uid_eq(euid, ipcp->uid))
++		orig_granted_mode >>= 6;
++	else {
++		/* if likely wrong permissions, lock to user */
++		if (orig_granted_mode & 0007)
++			orig_granted_mode = 0;
++		/* otherwise do a egid-only check */
++		else if (gid_eq(egid, ipcp->cgid) || gid_eq(egid, ipcp->gid))
++			orig_granted_mode >>= 3;
++		/* otherwise, no access */
++		else
++			orig_granted_mode = 0;
++	}
++	if (!(requested_mode & ~granted_mode & 0007) && (requested_mode & ~orig_granted_mode & 0007) &&
++	    !ns_capable_nolog(ns->user_ns, CAP_IPC_OWNER)) {
++		gr_log_str_int(GR_DONT_AUDIT, GR_IPC_DENIED_MSG, write ? "write" : "read", GR_GLOBAL_UID(ipcp->cuid));
++		return 0;
++	}
++#endif
++	return 1;
++}
+diff --git a/grsecurity/grsec_link.c b/grsecurity/grsec_link.c
+new file mode 100644
+index 0000000..5e05e20
+--- /dev/null
++++ b/grsecurity/grsec_link.c
+@@ -0,0 +1,58 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/grinternal.h>
++
++int gr_handle_symlink_owner(const struct path *link, const struct inode *target)
++{
++#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
++	const struct inode *link_inode = link->dentry->d_inode;
++
++	if (grsec_enable_symlinkown && in_group_p(grsec_symlinkown_gid) &&
++	   /* ignore root-owned links, e.g. /proc/self */
++	    gr_is_global_nonroot(link_inode->i_uid) && target &&
++	    !uid_eq(link_inode->i_uid, target->i_uid)) {
++		gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINKOWNER_MSG, link->dentry, link->mnt, link_inode->i_uid, target->i_uid);
++		return 1;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_follow_link(const struct inode *parent,
++		      const struct inode *inode,
++		      const struct dentry *dentry, const struct vfsmount *mnt)
++{
++#ifdef CONFIG_GRKERNSEC_LINK
++	const struct cred *cred = current_cred();
++
++	if (grsec_enable_link && S_ISLNK(inode->i_mode) &&
++	    (parent->i_mode & S_ISVTX) && !uid_eq(parent->i_uid, inode->i_uid) &&
++	    (parent->i_mode & S_IWOTH) && !uid_eq(cred->fsuid, inode->i_uid)) {
++		gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_hardlink(const struct dentry *dentry,
++		   const struct vfsmount *mnt,
++		   struct inode *inode, const int mode, const struct filename *to)
++{
++#ifdef CONFIG_GRKERNSEC_LINK
++	const struct cred *cred = current_cred();
++
++	if (grsec_enable_link && !uid_eq(cred->fsuid, inode->i_uid) &&
++	    (!S_ISREG(mode) || is_privileged_binary(dentry) || 
++	     (inode_permission(inode, MAY_READ | MAY_WRITE))) &&
++	    !capable(CAP_FOWNER) && gr_is_global_nonroot(cred->uid)) {
++		gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to->name);
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_log.c b/grsecurity/grsec_log.c
+new file mode 100644
+index 0000000..dbe0a6b
+--- /dev/null
++++ b/grsecurity/grsec_log.c
+@@ -0,0 +1,341 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/tty.h>
++#include <linux/fs.h>
++#include <linux/mm.h>
++#include <linux/grinternal.h>
++
++#ifdef CONFIG_TREE_PREEMPT_RCU
++#define DISABLE_PREEMPT() preempt_disable()
++#define ENABLE_PREEMPT() preempt_enable()
++#else
++#define DISABLE_PREEMPT()
++#define ENABLE_PREEMPT()
++#endif
++
++#define BEGIN_LOCKS(x) \
++	DISABLE_PREEMPT(); \
++	rcu_read_lock(); \
++	read_lock(&tasklist_lock); \
++	read_lock(&grsec_exec_file_lock); \
++	if (x != GR_DO_AUDIT) \
++		spin_lock(&grsec_alert_lock); \
++	else \
++		spin_lock(&grsec_audit_lock)
++
++#define END_LOCKS(x) \
++	if (x != GR_DO_AUDIT) \
++		spin_unlock(&grsec_alert_lock); \
++	else \
++		spin_unlock(&grsec_audit_lock); \
++	read_unlock(&grsec_exec_file_lock); \
++	read_unlock(&tasklist_lock); \
++	rcu_read_unlock(); \
++	ENABLE_PREEMPT(); \
++	if (x == GR_DONT_AUDIT) \
++		gr_handle_alertkill(current)
++
++enum {
++	FLOODING,
++	NO_FLOODING
++};
++
++extern char *gr_alert_log_fmt;
++extern char *gr_audit_log_fmt;
++extern char *gr_alert_log_buf;
++extern char *gr_audit_log_buf;
++
++static int gr_log_start(int audit)
++{
++	char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT;
++	char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt;
++	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++#if (CONFIG_GRKERNSEC_FLOODTIME > 0 && CONFIG_GRKERNSEC_FLOODBURST > 0)
++	unsigned long curr_secs = get_seconds();
++
++	if (audit == GR_DO_AUDIT)
++		goto set_fmt;
++
++	if (!grsec_alert_wtime || time_after(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)) {
++		grsec_alert_wtime = curr_secs;
++		grsec_alert_fyet = 0;
++	} else if (time_before_eq(curr_secs, grsec_alert_wtime + CONFIG_GRKERNSEC_FLOODTIME)
++		    && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) {
++		grsec_alert_fyet++;
++	} else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) {
++		grsec_alert_wtime = curr_secs;
++		grsec_alert_fyet++;
++		printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME);
++		return FLOODING;
++	}
++	else return FLOODING;
++
++set_fmt:
++#endif
++	memset(buf, 0, PAGE_SIZE);
++	if (current->signal->curr_ip && gr_acl_is_enabled()) {
++		sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: (%.64s:%c:%.950s) ");
++		snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
++	} else if (current->signal->curr_ip) {
++		sprintf(fmt, "%s%s", loglevel, "grsec: From %pI4: ");
++		snprintf(buf, PAGE_SIZE - 1, fmt, &current->signal->curr_ip);
++	} else if (gr_acl_is_enabled()) {
++		sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) ");
++		snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename);
++	} else {
++		sprintf(fmt, "%s%s", loglevel, "grsec: ");
++		strcpy(buf, fmt);
++	}
++
++	return NO_FLOODING;
++}
++
++static void gr_log_middle(int audit, const char *msg, va_list ap)
++	__attribute__ ((format (printf, 2, 0)));
++
++static void gr_log_middle(int audit, const char *msg, va_list ap)
++{
++	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++	unsigned int len = strlen(buf);
++
++	vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
++
++	return;
++}
++
++static void gr_log_middle_varargs(int audit, const char *msg, ...)
++	__attribute__ ((format (printf, 2, 3)));
++
++static void gr_log_middle_varargs(int audit, const char *msg, ...)
++{
++	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++	unsigned int len = strlen(buf);
++	va_list ap;
++
++	va_start(ap, msg);
++	vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap);
++	va_end(ap);
++
++	return;
++}
++
++static void gr_log_end(int audit, int append_default)
++{
++	char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf;
++	if (append_default) {
++		struct task_struct *task = current;
++		struct task_struct *parent = task->real_parent;
++		const struct cred *cred = __task_cred(task);
++		const struct cred *pcred = __task_cred(parent);
++		unsigned int len = strlen(buf);
++
++		snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
++	}
++
++	printk("%s\n", buf);
++
++	return;
++}
++
++void gr_log_varargs(int audit, const char *msg, int argtypes, ...)
++{
++	int logtype;
++	char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied";
++	char *str1 = NULL, *str2 = NULL, *str3 = NULL;
++	void *voidptr = NULL;
++	int num1 = 0, num2 = 0;
++	unsigned long ulong1 = 0, ulong2 = 0;
++	struct dentry *dentry = NULL;
++	struct vfsmount *mnt = NULL;
++	struct file *file = NULL;
++	struct task_struct *task = NULL;
++	struct vm_area_struct *vma = NULL;
++	const struct cred *cred, *pcred;
++	va_list ap;
++
++	BEGIN_LOCKS(audit);
++	logtype = gr_log_start(audit);
++	if (logtype == FLOODING) {
++		END_LOCKS(audit);
++		return;
++	}
++	va_start(ap, argtypes);
++	switch (argtypes) {
++	case GR_TTYSNIFF:
++		task = va_arg(ap, struct task_struct *);
++		gr_log_middle_varargs(audit, msg, &task->signal->curr_ip, gr_task_fullpath0(task), task->comm, task_pid_nr(task), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent));
++		break;
++	case GR_SYSCTL_HIDDEN:
++		str1 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, result, str1);
++		break;
++	case GR_RBAC:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt));
++		break;
++	case GR_RBAC_STR:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		str1 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1);
++		break;
++	case GR_STR_RBAC:
++		str1 = va_arg(ap, char *);
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt));
++		break;
++	case GR_RBAC_MODE2:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		str1 = va_arg(ap, char *);
++		str2 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2);
++		break;
++	case GR_RBAC_MODE3:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		str1 = va_arg(ap, char *);
++		str2 = va_arg(ap, char *);
++		str3 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3);
++		break;
++	case GR_FILENAME:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt));
++		break;
++	case GR_STR_FILENAME:
++		str1 = va_arg(ap, char *);
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt));
++		break;
++	case GR_FILENAME_STR:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		str1 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1);
++		break;
++	case GR_FILENAME_TWO_INT:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		num1 = va_arg(ap, int);
++		num2 = va_arg(ap, int);
++		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2);
++		break;
++	case GR_FILENAME_TWO_INT_STR:
++		dentry = va_arg(ap, struct dentry *);
++		mnt = va_arg(ap, struct vfsmount *);
++		num1 = va_arg(ap, int);
++		num2 = va_arg(ap, int);
++		str1 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1);
++		break;
++	case GR_TEXTREL:
++		file = va_arg(ap, struct file *);
++		ulong1 = va_arg(ap, unsigned long);
++		ulong2 = va_arg(ap, unsigned long);
++		gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2);
++		break;
++	case GR_PTRACE:
++		task = va_arg(ap, struct task_struct *);
++		gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task_pid_nr(task));
++		break;
++	case GR_RESOURCE:
++		task = va_arg(ap, struct task_struct *);
++		cred = __task_cred(task);
++		pcred = __task_cred(task->real_parent);
++		ulong1 = va_arg(ap, unsigned long);
++		str1 = va_arg(ap, char *);
++		ulong2 = va_arg(ap, unsigned long);
++		gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
++		break;
++	case GR_CAP:
++		task = va_arg(ap, struct task_struct *);
++		cred = __task_cred(task);
++		pcred = __task_cred(task->real_parent);
++		str1 = va_arg(ap, char *);
++		gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
++		break;
++	case GR_SIG:
++		str1 = va_arg(ap, char *);
++		voidptr = va_arg(ap, void *);
++		gr_log_middle_varargs(audit, msg, str1, voidptr);
++		break;
++	case GR_SIG2:
++		task = va_arg(ap, struct task_struct *);
++		cred = __task_cred(task);
++		pcred = __task_cred(task->real_parent);
++		num1 = va_arg(ap, int);
++		gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath0(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
++		break;
++	case GR_CRASH1:
++		task = va_arg(ap, struct task_struct *);
++		cred = __task_cred(task);
++		pcred = __task_cred(task->real_parent);
++		ulong1 = va_arg(ap, unsigned long);
++		gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), GR_GLOBAL_UID(cred->uid), ulong1);
++		break;
++	case GR_CRASH2:
++		task = va_arg(ap, struct task_struct *);
++		cred = __task_cred(task);
++		pcred = __task_cred(task->real_parent);
++		ulong1 = va_arg(ap, unsigned long);
++		gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid), ulong1);
++		break;
++	case GR_RWXMAP:
++		file = va_arg(ap, struct file *);
++		gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>");
++		break;
++	case GR_RWXMAPVMA:
++		vma = va_arg(ap, struct vm_area_struct *);
++		if (vma->vm_file)
++			str1 = gr_to_filename(vma->vm_file->f_path.dentry, vma->vm_file->f_path.mnt);
++		else if (vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP))
++			str1 = "<stack>";
++		else if (vma->vm_start <= current->mm->brk &&
++			 vma->vm_end >= current->mm->start_brk)
++			str1 = "<heap>";
++		else
++			str1 = "<anonymous mapping>";
++		gr_log_middle_varargs(audit, msg, str1);
++		break;
++	case GR_PSACCT:
++		{
++			unsigned int wday, cday;
++			__u8 whr, chr;
++			__u8 wmin, cmin;
++			__u8 wsec, csec;
++			char cur_tty[64] = { 0 };
++			char parent_tty[64] = { 0 };
++
++			task = va_arg(ap, struct task_struct *);
++			wday = va_arg(ap, unsigned int);
++			cday = va_arg(ap, unsigned int);
++			whr = va_arg(ap, int);
++			chr = va_arg(ap, int);
++			wmin = va_arg(ap, int);
++			cmin = va_arg(ap, int);
++			wsec = va_arg(ap, int);
++			csec = va_arg(ap, int);
++			ulong1 = va_arg(ap, unsigned long);
++			cred = __task_cred(task);
++			pcred = __task_cred(task->real_parent);
++
++			gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task_pid_nr(task), &task->signal->curr_ip, tty_name(task->signal->tty, cur_tty), GR_GLOBAL_UID(cred->uid), GR_GLOBAL_UID(cred->euid), GR_GLOBAL_GID(cred->gid), GR_GLOBAL_GID(cred->egid), wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->real_parent->comm, task_pid_nr(task->real_parent), &task->real_parent->signal->curr_ip, tty_name(task->real_parent->signal->tty, parent_tty), GR_GLOBAL_UID(pcred->uid), GR_GLOBAL_UID(pcred->euid), GR_GLOBAL_GID(pcred->gid), GR_GLOBAL_GID(pcred->egid));
++		}
++		break;
++	default:
++		gr_log_middle(audit, msg, ap);
++	}
++	va_end(ap);
++	// these don't need DEFAULTSECARGS printed on the end
++	if (argtypes == GR_CRASH1 || argtypes == GR_CRASH2)
++		gr_log_end(audit, 0);
++	else
++		gr_log_end(audit, 1);
++	END_LOCKS(audit);
++}
+diff --git a/grsecurity/grsec_mem.c b/grsecurity/grsec_mem.c
+new file mode 100644
+index 0000000..0e39d8c
+--- /dev/null
++++ b/grsecurity/grsec_mem.c
+@@ -0,0 +1,48 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/mman.h>
++#include <linux/module.h>
++#include <linux/grinternal.h>
++
++void gr_handle_msr_write(void)
++{
++	gr_log_noargs(GR_DONT_AUDIT, GR_MSRWRITE_MSG);
++	return;
++}
++EXPORT_SYMBOL_GPL(gr_handle_msr_write);
++
++void
++gr_handle_ioperm(void)
++{
++	gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG);
++	return;
++}
++
++void
++gr_handle_iopl(void)
++{
++	gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG);
++	return;
++}
++
++void
++gr_handle_mem_readwrite(u64 from, u64 to)
++{
++	gr_log_two_u64(GR_DONT_AUDIT, GR_MEM_READWRITE_MSG, from, to);
++	return;
++}
++
++void
++gr_handle_vm86(void)
++{
++	gr_log_noargs(GR_DONT_AUDIT, GR_VM86_MSG);
++	return;
++}
++
++void
++gr_log_badprocpid(const char *entry)
++{
++	gr_log_str(GR_DONT_AUDIT, GR_BADPROCPID_MSG, entry);
++	return;
++}
+diff --git a/grsecurity/grsec_mount.c b/grsecurity/grsec_mount.c
+new file mode 100644
+index 0000000..cd9e124
+--- /dev/null
++++ b/grsecurity/grsec_mount.c
+@@ -0,0 +1,65 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mount.h>
++#include <linux/major.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++void
++gr_log_remount(const char *devname, const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++	if (grsec_enable_mount && (retval >= 0))
++		gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none");
++#endif
++	return;
++}
++
++void
++gr_log_unmount(const char *devname, const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++	if (grsec_enable_mount && (retval >= 0))
++		gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none");
++#endif
++	return;
++}
++
++void
++gr_log_mount(const char *from, const char *to, const int retval)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++	if (grsec_enable_mount && (retval >= 0))
++		gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from ? from : "none", to);
++#endif
++	return;
++}
++
++int
++gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags)
++{
++#ifdef CONFIG_GRKERNSEC_ROFS
++	if (grsec_enable_rofs && !(mnt_flags & MNT_READONLY)) {
++		gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_MOUNT_MSG, dentry, mnt);
++		return -EPERM;
++	} else
++		return 0;
++#endif
++	return 0;
++}
++
++int
++gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode)
++{
++#ifdef CONFIG_GRKERNSEC_ROFS
++	struct inode *inode = dentry->d_inode;
++
++	if (grsec_enable_rofs && (acc_mode & MAY_WRITE) &&
++	    inode && (S_ISBLK(inode->i_mode) || (S_ISCHR(inode->i_mode) && imajor(inode) == RAW_MAJOR))) {
++		gr_log_fs_generic(GR_DO_AUDIT, GR_ROFS_BLOCKWRITE_MSG, dentry, mnt);
++		return -EPERM;
++	} else
++		return 0;
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_pax.c b/grsecurity/grsec_pax.c
+new file mode 100644
+index 0000000..6ee9d50
+--- /dev/null
++++ b/grsecurity/grsec_pax.c
+@@ -0,0 +1,45 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/file.h>
++#include <linux/grinternal.h>
++#include <linux/grsecurity.h>
++
++void
++gr_log_textrel(struct vm_area_struct * vma)
++{
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	if (grsec_enable_log_rwxmaps)
++		gr_log_textrel_ulong_ulong(GR_DONT_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff);
++#endif
++	return;
++}
++
++void gr_log_ptgnustack(struct file *file)
++{
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	if (grsec_enable_log_rwxmaps)
++		gr_log_rwxmap(GR_DONT_AUDIT, GR_PTGNUSTACK_MSG, file);
++#endif
++	return;
++}
++
++void
++gr_log_rwxmmap(struct file *file)
++{
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	if (grsec_enable_log_rwxmaps)
++		gr_log_rwxmap(GR_DONT_AUDIT, GR_RWXMMAP_MSG, file);
++#endif
++	return;
++}
++
++void
++gr_log_rwxmprotect(struct vm_area_struct *vma)
++{
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	if (grsec_enable_log_rwxmaps)
++		gr_log_rwxmap_vma(GR_DONT_AUDIT, GR_RWXMPROTECT_MSG, vma);
++#endif
++	return;
++}
+diff --git a/grsecurity/grsec_proc.c b/grsecurity/grsec_proc.c
+new file mode 100644
+index 0000000..2005a3a
+--- /dev/null
++++ b/grsecurity/grsec_proc.c
+@@ -0,0 +1,20 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++int gr_proc_is_restricted(void)
++{
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	const struct cred *cred = current_cred();
++#endif
++
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID))
++		return -EACCES;
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	if (!uid_eq(cred->fsuid, GLOBAL_ROOT_UID) && !in_group_p(grsec_proc_gid))
++		return -EACCES;
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_ptrace.c b/grsecurity/grsec_ptrace.c
+new file mode 100644
+index 0000000..f7f29aa
+--- /dev/null
++++ b/grsecurity/grsec_ptrace.c
+@@ -0,0 +1,30 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grinternal.h>
++#include <linux/security.h>
++
++void
++gr_audit_ptrace(struct task_struct *task)
++{
++#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
++	if (grsec_enable_audit_ptrace)
++		gr_log_ptrace(GR_DO_AUDIT, GR_PTRACE_AUDIT_MSG, task);
++#endif
++	return;
++}
++
++int
++gr_ptrace_readexec(struct file *file, int unsafe_flags)
++{
++#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
++	const struct dentry *dentry = file->f_path.dentry;
++	const struct vfsmount *mnt = file->f_path.mnt;
++
++	if (grsec_enable_ptrace_readexec && (unsafe_flags & LSM_UNSAFE_PTRACE) && 
++	    (inode_permission(dentry->d_inode, MAY_READ) || !gr_acl_handle_open(dentry, mnt, MAY_READ))) {
++		gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_READEXEC_MSG, dentry, mnt);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_sig.c b/grsecurity/grsec_sig.c
+new file mode 100644
+index 0000000..3860c7e
+--- /dev/null
++++ b/grsecurity/grsec_sig.c
+@@ -0,0 +1,236 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/fs.h>
++#include <linux/delay.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/hardirq.h>
++
++char *signames[] = {
++	[SIGSEGV] = "Segmentation fault",
++	[SIGILL] = "Illegal instruction",
++	[SIGABRT] = "Abort",
++	[SIGBUS] = "Invalid alignment/Bus error"
++};
++
++void
++gr_log_signal(const int sig, const void *addr, const struct task_struct *t)
++{
++#ifdef CONFIG_GRKERNSEC_SIGNAL
++	if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) ||
++				    (sig == SIGABRT) || (sig == SIGBUS))) {
++		if (task_pid_nr(t) == task_pid_nr(current)) {
++			gr_log_sig_addr(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, signames[sig], addr);
++		} else {
++			gr_log_sig_task(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig);
++		}
++	}
++#endif
++	return;
++}
++
++int
++gr_handle_signal(const struct task_struct *p, const int sig)
++{
++#ifdef CONFIG_GRKERNSEC
++	/* ignore the 0 signal for protected task checks */
++	if (task_pid_nr(current) > 1 && sig && gr_check_protected_task(p)) {
++		gr_log_sig_task(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig);
++		return -EPERM;
++	} else if (gr_pid_is_chrooted((struct task_struct *)p)) {
++		return -EPERM;
++	}
++#endif
++	return 0;
++}
++
++#ifdef CONFIG_GRKERNSEC
++extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t);
++
++int gr_fake_force_sig(int sig, struct task_struct *t)
++{
++	unsigned long int flags;
++	int ret, blocked, ignored;
++	struct k_sigaction *action;
++
++	spin_lock_irqsave(&t->sighand->siglock, flags);
++	action = &t->sighand->action[sig-1];
++	ignored = action->sa.sa_handler == SIG_IGN;
++	blocked = sigismember(&t->blocked, sig);
++	if (blocked || ignored) {
++		action->sa.sa_handler = SIG_DFL;
++		if (blocked) {
++			sigdelset(&t->blocked, sig);
++			recalc_sigpending_and_wake(t);
++		}
++	}
++	if (action->sa.sa_handler == SIG_DFL)
++		t->signal->flags &= ~SIGNAL_UNKILLABLE;
++	ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t);
++
++	spin_unlock_irqrestore(&t->sighand->siglock, flags);
++
++	return ret;
++}
++#endif
++
++#define GR_USER_BAN_TIME (15 * 60)
++#define GR_DAEMON_BRUTE_TIME (30 * 60)
++
++void gr_handle_brute_attach(int dumpable)
++{
++#ifdef CONFIG_GRKERNSEC_BRUTE
++	struct task_struct *p = current;
++	kuid_t uid = GLOBAL_ROOT_UID;
++	int daemon = 0;
++
++	if (!grsec_enable_brute)
++		return;
++
++	rcu_read_lock();
++	read_lock(&tasklist_lock);
++	read_lock(&grsec_exec_file_lock);
++	if (p->real_parent && gr_is_same_file(p->real_parent->exec_file, p->exec_file)) {
++		p->real_parent->brute_expires = get_seconds() + GR_DAEMON_BRUTE_TIME;
++		p->real_parent->brute = 1;
++		daemon = 1;
++	} else {
++		const struct cred *cred = __task_cred(p), *cred2;
++		struct task_struct *tsk, *tsk2;
++
++		if (dumpable != SUID_DUMP_USER && gr_is_global_nonroot(cred->uid)) {
++			struct user_struct *user;
++
++			uid = cred->uid;
++
++			/* this is put upon execution past expiration */
++			user = find_user(uid);
++			if (user == NULL)
++				goto unlock;
++			user->suid_banned = 1;
++			user->suid_ban_expires = get_seconds() + GR_USER_BAN_TIME;
++			if (user->suid_ban_expires == ~0UL)
++				user->suid_ban_expires--;
++
++			/* only kill other threads of the same binary, from the same user */
++			do_each_thread(tsk2, tsk) {
++				cred2 = __task_cred(tsk);
++				if (tsk != p && uid_eq(cred2->uid, uid) && gr_is_same_file(tsk->exec_file, p->exec_file))
++					gr_fake_force_sig(SIGKILL, tsk);
++			} while_each_thread(tsk2, tsk);
++		}
++	}
++unlock:
++	read_unlock(&grsec_exec_file_lock);
++	read_unlock(&tasklist_lock);
++	rcu_read_unlock();
++
++	if (gr_is_global_nonroot(uid))
++		gr_log_fs_int2(GR_DONT_AUDIT, GR_BRUTE_SUID_MSG, p->exec_file->f_path.dentry, p->exec_file->f_path.mnt, GR_GLOBAL_UID(uid), GR_USER_BAN_TIME / 60);
++	else if (daemon)
++		gr_log_noargs(GR_DONT_AUDIT, GR_BRUTE_DAEMON_MSG);
++
++#endif
++	return;
++}
++
++void gr_handle_brute_check(void)
++{
++#ifdef CONFIG_GRKERNSEC_BRUTE
++	struct task_struct *p = current;
++
++	if (unlikely(p->brute)) {
++		if (!grsec_enable_brute)
++			p->brute = 0;
++		else if (time_before(get_seconds(), p->brute_expires))
++			msleep(30 * 1000);
++	}
++#endif
++	return;
++}
++
++void gr_handle_kernel_exploit(void)
++{
++#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
++	const struct cred *cred;
++	struct task_struct *tsk, *tsk2;
++	struct user_struct *user;
++	kuid_t uid;
++
++	if (in_irq() || in_serving_softirq() || in_nmi())
++		panic("grsec: halting the system due to suspicious kernel crash caused in interrupt context");
++
++	uid = current_uid();
++
++	if (gr_is_global_root(uid))
++		panic("grsec: halting the system due to suspicious kernel crash caused by root");
++	else {
++		/* kill all the processes of this user, hold a reference
++		   to their creds struct, and prevent them from creating
++		   another process until system reset
++		*/
++		printk(KERN_ALERT "grsec: banning user with uid %u until system restart for suspicious kernel crash\n",
++			GR_GLOBAL_UID(uid));
++		/* we intentionally leak this ref */
++		user = get_uid(current->cred->user);
++		if (user)
++			user->kernel_banned = 1;
++
++		/* kill all processes of this user */
++		read_lock(&tasklist_lock);
++		do_each_thread(tsk2, tsk) {
++			cred = __task_cred(tsk);
++			if (uid_eq(cred->uid, uid))
++				gr_fake_force_sig(SIGKILL, tsk);
++		} while_each_thread(tsk2, tsk);
++		read_unlock(&tasklist_lock); 
++	}
++#endif
++}
++
++#ifdef CONFIG_GRKERNSEC_BRUTE
++static bool suid_ban_expired(struct user_struct *user)
++{
++	if (user->suid_ban_expires != ~0UL && time_after_eq(get_seconds(), user->suid_ban_expires)) {
++		user->suid_banned = 0;
++		user->suid_ban_expires = 0;
++		free_uid(user);
++		return true;
++	}
++
++	return false;
++}
++#endif
++
++int gr_process_kernel_exec_ban(void)
++{
++#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
++	if (unlikely(current->cred->user->kernel_banned))
++		return -EPERM;
++#endif
++	return 0;
++}
++
++int gr_process_kernel_setuid_ban(struct user_struct *user)
++{
++#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
++	if (unlikely(user->kernel_banned))
++		gr_fake_force_sig(SIGKILL, current);
++#endif
++	return 0;
++}
++
++int gr_process_suid_exec_ban(const struct linux_binprm *bprm)
++{
++#ifdef CONFIG_GRKERNSEC_BRUTE
++	struct user_struct *user = current->cred->user;
++	if (unlikely(user->suid_banned)) {
++		if (suid_ban_expired(user))
++			return 0;
++		/* disallow execution of suid binaries only */
++		else if (!uid_eq(bprm->cred->euid, current->cred->uid))
++			return -EPERM;
++	}
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_sock.c b/grsecurity/grsec_sock.c
+new file mode 100644
+index 0000000..a523bd2
+--- /dev/null
++++ b/grsecurity/grsec_sock.c
+@@ -0,0 +1,244 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/net.h>
++#include <linux/in.h>
++#include <linux/ip.h>
++#include <net/sock.h>
++#include <net/inet_sock.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++#include <linux/gracl.h>
++
++extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb);
++extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr);
++
++EXPORT_SYMBOL_GPL(gr_search_udp_recvmsg);
++EXPORT_SYMBOL_GPL(gr_search_udp_sendmsg);
++
++#ifdef CONFIG_UNIX_MODULE
++EXPORT_SYMBOL_GPL(gr_acl_handle_unix);
++EXPORT_SYMBOL_GPL(gr_acl_handle_mknod);
++EXPORT_SYMBOL_GPL(gr_handle_chroot_unix);
++EXPORT_SYMBOL_GPL(gr_handle_create);
++#endif
++
++#ifdef CONFIG_GRKERNSEC
++#define gr_conn_table_size 32749
++struct conn_table_entry {
++	struct conn_table_entry *next;
++	struct signal_struct *sig;
++};
++
++struct conn_table_entry *gr_conn_table[gr_conn_table_size];
++DEFINE_SPINLOCK(gr_conn_table_lock);
++
++extern const char * gr_socktype_to_name(unsigned char type);
++extern const char * gr_proto_to_name(unsigned char proto);
++extern const char * gr_sockfamily_to_name(unsigned char family);
++
++static int 
++conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size)
++{
++	return ((daddr + saddr + (sport << 8) + (dport << 16)) % size);
++}
++
++static int
++conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr, 
++	   __u16 sport, __u16 dport)
++{
++	if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr &&
++		     sig->gr_sport == sport && sig->gr_dport == dport))
++		return 1;
++	else
++		return 0;
++}
++
++static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent)
++{
++	struct conn_table_entry **match;
++	unsigned int index;
++
++	index = conn_hash(sig->gr_saddr, sig->gr_daddr, 
++			  sig->gr_sport, sig->gr_dport, 
++			  gr_conn_table_size);
++
++	newent->sig = sig;
++	
++	match = &gr_conn_table[index];
++	newent->next = *match;
++	*match = newent;
++
++	return;
++}
++
++static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig)
++{
++	struct conn_table_entry *match, *last = NULL;
++	unsigned int index;
++
++	index = conn_hash(sig->gr_saddr, sig->gr_daddr, 
++			  sig->gr_sport, sig->gr_dport, 
++			  gr_conn_table_size);
++
++	match = gr_conn_table[index];
++	while (match && !conn_match(match->sig, 
++		sig->gr_saddr, sig->gr_daddr, sig->gr_sport, 
++		sig->gr_dport)) {
++		last = match;
++		match = match->next;
++	}
++
++	if (match) {
++		if (last)
++			last->next = match->next;
++		else
++			gr_conn_table[index] = NULL;
++		kfree(match);
++	}
++
++	return;
++}
++
++static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr,
++					     __u16 sport, __u16 dport)
++{
++	struct conn_table_entry *match;
++	unsigned int index;
++
++	index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size);
++
++	match = gr_conn_table[index];
++	while (match && !conn_match(match->sig, saddr, daddr, sport, dport))
++		match = match->next;
++
++	if (match)
++		return match->sig;
++	else
++		return NULL;
++}
++
++#endif
++
++void gr_update_task_in_ip_table(const struct inet_sock *inet)
++{
++#ifdef CONFIG_GRKERNSEC
++	struct signal_struct *sig = current->signal;
++	struct conn_table_entry *newent;
++
++	newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC);
++	if (newent == NULL)
++		return;
++	/* no bh lock needed since we are called with bh disabled */
++	spin_lock(&gr_conn_table_lock);
++	gr_del_task_from_ip_table_nolock(sig);
++	sig->gr_saddr = inet->inet_rcv_saddr;
++	sig->gr_daddr = inet->inet_daddr;
++	sig->gr_sport = inet->inet_sport;
++	sig->gr_dport = inet->inet_dport;
++	gr_add_to_task_ip_table_nolock(sig, newent);
++	spin_unlock(&gr_conn_table_lock);
++#endif
++	return;
++}
++
++void gr_del_task_from_ip_table(struct task_struct *task)
++{
++#ifdef CONFIG_GRKERNSEC
++	spin_lock_bh(&gr_conn_table_lock);
++	gr_del_task_from_ip_table_nolock(task->signal);
++	spin_unlock_bh(&gr_conn_table_lock);
++#endif
++	return;
++}
++
++void
++gr_attach_curr_ip(const struct sock *sk)
++{
++#ifdef CONFIG_GRKERNSEC
++	struct signal_struct *p, *set;
++	const struct inet_sock *inet = inet_sk(sk);	
++
++	if (unlikely(sk->sk_protocol != IPPROTO_TCP))
++		return;
++
++	set = current->signal;
++
++	spin_lock_bh(&gr_conn_table_lock);
++	p = gr_lookup_task_ip_table(inet->inet_daddr, inet->inet_rcv_saddr,
++				    inet->inet_dport, inet->inet_sport);
++	if (unlikely(p != NULL)) {
++		set->curr_ip = p->curr_ip;
++		set->used_accept = 1;
++		gr_del_task_from_ip_table_nolock(p);
++		spin_unlock_bh(&gr_conn_table_lock);
++		return;
++	}
++	spin_unlock_bh(&gr_conn_table_lock);
++
++	set->curr_ip = inet->inet_daddr;
++	set->used_accept = 1;
++#endif
++	return;
++}
++
++int
++gr_handle_sock_all(const int family, const int type, const int protocol)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
++	if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) &&
++	    (family != AF_UNIX)) {
++		if (family == AF_INET)
++			gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), gr_proto_to_name(protocol));
++		else
++			gr_log_str2_int(GR_DONT_AUDIT, GR_SOCK_NOINET_MSG, gr_sockfamily_to_name(family), gr_socktype_to_name(type), protocol);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_sock_server(const struct sockaddr *sck)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++	if (grsec_enable_socket_server &&
++	    in_group_p(grsec_socket_server_gid) &&
++	    sck && (sck->sa_family != AF_UNIX) &&
++	    (sck->sa_family != AF_LOCAL)) {
++		gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_sock_server_other(const struct sock *sck)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++	if (grsec_enable_socket_server &&
++	    in_group_p(grsec_socket_server_gid) &&
++	    sck && (sck->sk_family != AF_UNIX) &&
++	    (sck->sk_family != AF_LOCAL)) {
++		gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
++
++int
++gr_handle_sock_client(const struct sockaddr *sck)
++{
++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
++	if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) &&
++	    sck && (sck->sa_family != AF_UNIX) &&
++	    (sck->sa_family != AF_LOCAL)) {
++		gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
+diff --git a/grsecurity/grsec_sysctl.c b/grsecurity/grsec_sysctl.c
+new file mode 100644
+index 0000000..cce889e
+--- /dev/null
++++ b/grsecurity/grsec_sysctl.c
+@@ -0,0 +1,488 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/sysctl.h>
++#include <linux/grsecurity.h>
++#include <linux/grinternal.h>
++
++int
++gr_handle_sysctl_mod(const char *dirname, const char *name, const int op)
++{
++#ifdef CONFIG_GRKERNSEC_SYSCTL
++	if (dirname == NULL || name == NULL)
++		return 0;
++	if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) {
++		gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name);
++		return -EACCES;
++	}
++#endif
++	return 0;
++}
++
++#if defined(CONFIG_GRKERNSEC_ROFS) || defined(CONFIG_GRKERNSEC_DENYUSB)
++static int __maybe_unused __read_only one = 1;
++#endif
++
++#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS) || \
++	defined(CONFIG_GRKERNSEC_DENYUSB)
++struct ctl_table grsecurity_table[] = {
++#ifdef CONFIG_GRKERNSEC_SYSCTL
++#ifdef CONFIG_GRKERNSEC_SYSCTL_DISTRO
++#ifdef CONFIG_GRKERNSEC_IO
++	{
++		.procname	= "disable_priv_io",
++		.data		= &grsec_disable_privio,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#endif
++#ifdef CONFIG_GRKERNSEC_LINK
++	{
++		.procname	= "linking_restrictions",
++		.data		= &grsec_enable_link,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_SYMLINKOWN
++	{
++		.procname	= "enforce_symlinksifowner",
++		.data		= &grsec_enable_symlinkown,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "symlinkown_gid",
++		.data		= &grsec_symlinkown_gid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_BRUTE
++	{
++		.procname	= "deter_bruteforce",
++		.data		= &grsec_enable_brute,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_FIFO
++	{
++		.procname	= "fifo_restrictions",
++		.data		= &grsec_enable_fifo,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_PTRACE_READEXEC
++	{
++		.procname	= "ptrace_readexec",
++		.data		= &grsec_enable_ptrace_readexec,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_SETXID
++	{
++		.procname	= "consistent_setxid",
++		.data		= &grsec_enable_setxid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	{
++		.procname	= "ip_blackhole",
++		.data		= &grsec_enable_blackhole,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "lastack_retries",
++		.data		= &grsec_lastack_retries,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_EXECLOG
++	{
++		.procname	= "exec_logging",
++		.data		= &grsec_enable_execlog,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++	{
++		.procname	= "rwxmap_logging",
++		.data		= &grsec_enable_log_rwxmaps,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_SIGNAL
++	{
++		.procname	= "signal_logging",
++		.data		= &grsec_enable_signal,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_FORKFAIL
++	{
++		.procname	= "forkfail_logging",
++		.data		= &grsec_enable_forkfail,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_TIME
++	{
++		.procname	= "timechange_logging",
++		.data		= &grsec_enable_time,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT
++	{
++		.procname	= "chroot_deny_shmat",
++		.data		= &grsec_enable_chroot_shmat,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX
++	{
++		.procname	= "chroot_deny_unix",
++		.data		= &grsec_enable_chroot_unix,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT
++	{
++		.procname	= "chroot_deny_mount",
++		.data		= &grsec_enable_chroot_mount,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR
++	{
++		.procname	= "chroot_deny_fchdir",
++		.data		= &grsec_enable_chroot_fchdir,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE
++	{
++		.procname	= "chroot_deny_chroot",
++		.data		= &grsec_enable_chroot_double,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT
++	{
++		.procname	= "chroot_deny_pivot",
++		.data		= &grsec_enable_chroot_pivot,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR
++	{
++		.procname	= "chroot_enforce_chdir",
++		.data		= &grsec_enable_chroot_chdir,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD
++	{
++		.procname	= "chroot_deny_chmod",
++		.data		= &grsec_enable_chroot_chmod,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD
++	{
++		.procname	= "chroot_deny_mknod",
++		.data		= &grsec_enable_chroot_mknod,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_NICE
++	{
++		.procname	= "chroot_restrict_nice",
++		.data		= &grsec_enable_chroot_nice,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG
++	{
++		.procname	= "chroot_execlog",
++		.data		= &grsec_enable_chroot_execlog,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS
++	{
++		.procname	= "chroot_caps",
++		.data		= &grsec_enable_chroot_caps,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	{
++		.procname	= "chroot_deny_bad_rename",
++		.data		= &grsec_enable_chroot_rename,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL
++	{
++		.procname	= "chroot_deny_sysctl",
++		.data		= &grsec_enable_chroot_sysctl,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE
++	{
++		.procname	= "tpe",
++		.data		= &grsec_enable_tpe,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "tpe_gid",
++		.data		= &grsec_tpe_gid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE_INVERT
++	{
++		.procname	= "tpe_invert",
++		.data		= &grsec_enable_tpe_invert,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_TPE_ALL
++	{
++		.procname	= "tpe_restrict_all",
++		.data		= &grsec_enable_tpe_all,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_ALL
++	{
++		.procname	= "socket_all",
++		.data		= &grsec_enable_socket_all,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "socket_all_gid",
++		.data		= &grsec_socket_all_gid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT
++	{
++		.procname	= "socket_client",
++		.data		= &grsec_enable_socket_client,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "socket_client_gid",
++		.data		= &grsec_socket_client_gid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER
++	{
++		.procname	= "socket_server",
++		.data		= &grsec_enable_socket_server,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "socket_server_gid",
++		.data		= &grsec_socket_server_gid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP
++	{
++		.procname	= "audit_group",
++		.data		= &grsec_enable_group,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++	{
++		.procname	= "audit_gid",
++		.data		= &grsec_audit_gid,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR
++	{
++		.procname	= "audit_chdir",
++		.data		= &grsec_enable_chdir,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT
++	{
++		.procname	= "audit_mount",
++		.data		= &grsec_enable_mount,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_DMESG
++	{
++		.procname	= "dmesg",
++		.data		= &grsec_enable_dmesg,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++	{
++		.procname	= "chroot_findtask",
++		.data		= &grsec_enable_chroot_findtask,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_RESLOG
++	{
++		.procname	= "resource_logging",
++		.data		= &grsec_resource_logging,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_AUDIT_PTRACE
++	{
++		.procname	= "audit_ptrace",
++		.data		= &grsec_enable_audit_ptrace,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
++	{
++		.procname	= "harden_ptrace",
++		.data		= &grsec_enable_harden_ptrace,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_HARDEN_IPC
++	{
++		.procname	= "harden_ipc",
++		.data		= &grsec_enable_harden_ipc,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++	{
++		.procname	= "grsec_lock",
++		.data		= &grsec_lock,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++#ifdef CONFIG_GRKERNSEC_ROFS
++	{
++		.procname	= "romount_protect",
++		.data		= &grsec_enable_rofs,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec_minmax,
++		.extra1		= &one,
++		.extra2		= &one,
++	},
++#endif
++#if defined(CONFIG_GRKERNSEC_DENYUSB) && !defined(CONFIG_GRKERNSEC_DENYUSB_FORCE)
++	{
++		.procname	= "deny_new_usb",
++		.data		= &grsec_deny_new_usb,
++		.maxlen		= sizeof(int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++#endif
++	{ }
++};
++#endif
+diff --git a/grsecurity/grsec_time.c b/grsecurity/grsec_time.c
+new file mode 100644
+index 0000000..61b514e
+--- /dev/null
++++ b/grsecurity/grsec_time.c
+@@ -0,0 +1,16 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/grinternal.h>
++#include <linux/module.h>
++
++void
++gr_log_timechange(void)
++{
++#ifdef CONFIG_GRKERNSEC_TIME
++	if (grsec_enable_time)
++		gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG);
++#endif
++	return;
++}
++
++EXPORT_SYMBOL_GPL(gr_log_timechange);
+diff --git a/grsecurity/grsec_tpe.c b/grsecurity/grsec_tpe.c
+new file mode 100644
+index 0000000..d1953de
+--- /dev/null
++++ b/grsecurity/grsec_tpe.c
+@@ -0,0 +1,78 @@
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/grinternal.h>
++
++extern int gr_acl_tpe_check(void);
++
++int
++gr_tpe_allow(const struct file *file)
++{
++#ifdef CONFIG_GRKERNSEC
++	struct inode *inode = file->f_path.dentry->d_parent->d_inode;
++	struct inode *file_inode = file->f_path.dentry->d_inode;
++	const struct cred *cred = current_cred();
++	char *msg = NULL;
++	char *msg2 = NULL;
++
++	// never restrict root
++	if (gr_is_global_root(cred->uid))
++		return 1;
++
++	if (grsec_enable_tpe) {
++#ifdef CONFIG_GRKERNSEC_TPE_INVERT
++		if (grsec_enable_tpe_invert && !in_group_p(grsec_tpe_gid))
++			msg = "not being in trusted group";
++		else if (!grsec_enable_tpe_invert && in_group_p(grsec_tpe_gid))
++			msg = "being in untrusted group";
++#else
++		if (in_group_p(grsec_tpe_gid))
++			msg = "being in untrusted group";
++#endif
++	}
++	if (!msg && gr_acl_tpe_check())
++		msg = "being in untrusted role";
++
++	// not in any affected group/role
++	if (!msg)
++		goto next_check;
++
++	if (gr_is_global_nonroot(inode->i_uid))
++		msg2 = "file in non-root-owned directory";
++	else if (inode->i_mode & S_IWOTH)
++		msg2 = "file in world-writable directory";
++	else if (inode->i_mode & S_IWGRP)
++		msg2 = "file in group-writable directory";
++	else if (file_inode->i_mode & S_IWOTH)
++		msg2 = "file is world-writable";
++
++	if (msg && msg2) {
++		char fullmsg[70] = {0};
++		snprintf(fullmsg, sizeof(fullmsg)-1, "%s and %s", msg, msg2);
++		gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, fullmsg, file->f_path.dentry, file->f_path.mnt);
++		return 0;
++	}
++	msg = NULL;
++next_check:
++#ifdef CONFIG_GRKERNSEC_TPE_ALL
++	if (!grsec_enable_tpe || !grsec_enable_tpe_all)
++		return 1;
++
++	if (gr_is_global_nonroot(inode->i_uid) && !uid_eq(inode->i_uid, cred->uid))
++		msg = "directory not owned by user";
++	else if (inode->i_mode & S_IWOTH)
++		msg = "file in world-writable directory";
++	else if (inode->i_mode & S_IWGRP)
++		msg = "file in group-writable directory";
++	else if (file_inode->i_mode & S_IWOTH)
++		msg = "file is world-writable";
++
++	if (msg) {
++		gr_log_str_fs(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, msg, file->f_path.dentry, file->f_path.mnt);
++		return 0;
++	}
++#endif
++#endif
++	return 1;
++}
+diff --git a/grsecurity/grsec_usb.c b/grsecurity/grsec_usb.c
+new file mode 100644
+index 0000000..ae02d8e
+--- /dev/null
++++ b/grsecurity/grsec_usb.c
+@@ -0,0 +1,15 @@
++#include <linux/kernel.h>
++#include <linux/grinternal.h>
++#include <linux/module.h>
++
++int gr_handle_new_usb(void)
++{
++#ifdef CONFIG_GRKERNSEC_DENYUSB
++	if (grsec_deny_new_usb) {
++		printk(KERN_ALERT "grsec: denied insert of new USB device\n");
++		return 1;
++	}
++#endif
++	return 0;
++}
++EXPORT_SYMBOL_GPL(gr_handle_new_usb);
+diff --git a/grsecurity/grsum.c b/grsecurity/grsum.c
+new file mode 100644
+index 0000000..158b330
+--- /dev/null
++++ b/grsecurity/grsum.c
+@@ -0,0 +1,64 @@
++#include <linux/err.h>
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/mm.h>
++#include <linux/scatterlist.h>
++#include <linux/crypto.h>
++#include <linux/gracl.h>
++
++
++#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE)
++#error "crypto and sha256 must be built into the kernel"
++#endif
++
++int
++chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg[2];
++	unsigned char temp_sum[GR_SHA_LEN] __attribute__((aligned(__alignof__(unsigned long))));
++	unsigned long *tmpsumptr = (unsigned long *)temp_sum;
++	unsigned long *sumptr = (unsigned long *)sum;
++	int cryptres;
++	int retval = 1;
++	volatile int mismatched = 0;
++	volatile int dummy = 0;
++	unsigned int i;
++
++	tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		/* should never happen, since sha256 should be built in */
++		memset(entry->pw, 0, GR_PW_LEN);
++		return 1;
++	}
++
++	sg_init_table(sg, 2);
++	sg_set_buf(&sg[0], salt, GR_SALT_LEN);
++	sg_set_buf(&sg[1], entry->pw, strlen(entry->pw));
++
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	cryptres = crypto_hash_digest(&desc, sg, GR_SALT_LEN + strlen(entry->pw),
++					temp_sum);
++
++	memset(entry->pw, 0, GR_PW_LEN);
++
++	if (cryptres)
++		goto out;
++
++	for (i = 0; i < GR_SHA_LEN/sizeof(tmpsumptr[0]); i++)
++		if (sumptr[i] != tmpsumptr[i])
++			mismatched = 1;
++		else
++			dummy = 1;	// waste a cycle
++
++	if (!mismatched)
++		retval = dummy - 1;
++
++out:
++	crypto_free_hash(tfm);
++
++	return retval;
++}
+diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
+index 77ff547..181834f 100644
+--- a/include/asm-generic/4level-fixup.h
++++ b/include/asm-generic/4level-fixup.h
+@@ -13,8 +13,10 @@
+ #define pmd_alloc(mm, pud, address) \
+ 	((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
+  		NULL: pmd_offset(pud, address))
++#define pmd_alloc_kernel(mm, pud, address) pmd_alloc((mm), (pud), (address))
+ 
+ #define pud_alloc(mm, pgd, address)	(pgd)
++#define pud_alloc_kernel(mm, pgd, address)	pud_alloc((mm), (pgd), (address))
+ #define pud_offset(pgd, start)		(pgd)
+ #define pud_none(pud)			0
+ #define pud_bad(pud)			0
+diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
+index b7babf0..1e4b4f1 100644
+--- a/include/asm-generic/atomic-long.h
++++ b/include/asm-generic/atomic-long.h
+@@ -22,6 +22,12 @@
+ 
+ typedef atomic64_t atomic_long_t;
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++typedef atomic64_unchecked_t atomic_long_unchecked_t;
++#else
++typedef atomic64_t atomic_long_unchecked_t;
++#endif
++
+ #define ATOMIC_LONG_INIT(i)	ATOMIC64_INIT(i)
+ 
+ static inline long atomic_long_read(atomic_long_t *l)
+@@ -31,6 +37,15 @@ static inline long atomic_long_read(atomic_long_t *l)
+ 	return (long)atomic64_read(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	return (long)atomic64_read_unchecked(v);
++}
++#endif
++
+ static inline void atomic_long_set(atomic_long_t *l, long i)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -38,6 +53,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
+ 	atomic64_set(v, i);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	atomic64_set_unchecked(v, i);
++}
++#endif
++
+ static inline void atomic_long_inc(atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -45,6 +69,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
+ 	atomic64_inc(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	atomic64_inc_unchecked(v);
++}
++#endif
++
+ static inline void atomic_long_dec(atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -52,6 +85,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
+ 	atomic64_dec(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	atomic64_dec_unchecked(v);
++}
++#endif
++
+ static inline void atomic_long_add(long i, atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -59,6 +101,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
+ 	atomic64_add(i, v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	atomic64_add_unchecked(i, v);
++}
++#endif
++
+ static inline void atomic_long_sub(long i, atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -66,6 +117,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
+ 	atomic64_sub(i, v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	atomic64_sub_unchecked(i, v);
++}
++#endif
++
+ static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -94,13 +154,22 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
+ 	return atomic64_add_negative(i, v);
+ }
+ 
+-static inline long atomic_long_add_return(long i, atomic_long_t *l)
++static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+ 
+ 	return (long)atomic64_add_return(i, v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	return (long)atomic64_add_return_unchecked(i, v);
++}
++#endif
++
+ static inline long atomic_long_sub_return(long i, atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -115,6 +184,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
+ 	return (long)atomic64_inc_return(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic64_unchecked_t *v = (atomic64_unchecked_t *)l;
++
++	return (long)atomic64_inc_return_unchecked(v);
++}
++#endif
++
+ static inline long atomic_long_dec_return(atomic_long_t *l)
+ {
+ 	atomic64_t *v = (atomic64_t *)l;
+@@ -140,6 +218,12 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
+ 
+ typedef atomic_t atomic_long_t;
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++typedef atomic_unchecked_t atomic_long_unchecked_t;
++#else
++typedef atomic_t atomic_long_unchecked_t;
++#endif
++
+ #define ATOMIC_LONG_INIT(i)	ATOMIC_INIT(i)
+ static inline long atomic_long_read(atomic_long_t *l)
+ {
+@@ -148,6 +232,15 @@ static inline long atomic_long_read(atomic_long_t *l)
+ 	return (long)atomic_read(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline long atomic_long_read_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	return (long)atomic_read_unchecked(v);
++}
++#endif
++
+ static inline void atomic_long_set(atomic_long_t *l, long i)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -155,6 +248,15 @@ static inline void atomic_long_set(atomic_long_t *l, long i)
+ 	atomic_set(v, i);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_set_unchecked(atomic_long_unchecked_t *l, long i)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	atomic_set_unchecked(v, i);
++}
++#endif
++
+ static inline void atomic_long_inc(atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -162,6 +264,15 @@ static inline void atomic_long_inc(atomic_long_t *l)
+ 	atomic_inc(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_inc_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	atomic_inc_unchecked(v);
++}
++#endif
++
+ static inline void atomic_long_dec(atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -169,6 +280,15 @@ static inline void atomic_long_dec(atomic_long_t *l)
+ 	atomic_dec(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_dec_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	atomic_dec_unchecked(v);
++}
++#endif
++
+ static inline void atomic_long_add(long i, atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -176,6 +296,15 @@ static inline void atomic_long_add(long i, atomic_long_t *l)
+ 	atomic_add(i, v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_add_unchecked(long i, atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	atomic_add_unchecked(i, v);
++}
++#endif
++
+ static inline void atomic_long_sub(long i, atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -183,6 +312,15 @@ static inline void atomic_long_sub(long i, atomic_long_t *l)
+ 	atomic_sub(i, v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void atomic_long_sub_unchecked(long i, atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	atomic_sub_unchecked(i, v);
++}
++#endif
++
+ static inline int atomic_long_sub_and_test(long i, atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -211,13 +349,23 @@ static inline int atomic_long_add_negative(long i, atomic_long_t *l)
+ 	return atomic_add_negative(i, v);
+ }
+ 
+-static inline long atomic_long_add_return(long i, atomic_long_t *l)
++static inline long __intentional_overflow(-1) atomic_long_add_return(long i, atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+ 
+ 	return (long)atomic_add_return(i, v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline long atomic_long_add_return_unchecked(long i, atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	return (long)atomic_add_return_unchecked(i, v);
++}
++
++#endif
++
+ static inline long atomic_long_sub_return(long i, atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -232,6 +380,15 @@ static inline long atomic_long_inc_return(atomic_long_t *l)
+ 	return (long)atomic_inc_return(v);
+ }
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline long atomic_long_inc_return_unchecked(atomic_long_unchecked_t *l)
++{
++	atomic_unchecked_t *v = (atomic_unchecked_t *)l;
++
++	return (long)atomic_inc_return_unchecked(v);
++}
++#endif
++
+ static inline long atomic_long_dec_return(atomic_long_t *l)
+ {
+ 	atomic_t *v = (atomic_t *)l;
+@@ -255,4 +412,57 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
+ 
+ #endif  /*  BITS_PER_LONG == 64  */
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++static inline void pax_refcount_needs_these_functions(void)
++{
++	atomic_read_unchecked((atomic_unchecked_t *)NULL);
++	atomic_set_unchecked((atomic_unchecked_t *)NULL, 0);
++	atomic_add_unchecked(0, (atomic_unchecked_t *)NULL);
++	atomic_sub_unchecked(0, (atomic_unchecked_t *)NULL);
++	atomic_inc_unchecked((atomic_unchecked_t *)NULL);
++	(void)atomic_inc_and_test_unchecked((atomic_unchecked_t *)NULL);
++	atomic_inc_return_unchecked((atomic_unchecked_t *)NULL);
++	atomic_add_return_unchecked(0, (atomic_unchecked_t *)NULL);
++	atomic_dec_unchecked((atomic_unchecked_t *)NULL);
++	atomic_cmpxchg_unchecked((atomic_unchecked_t *)NULL, 0, 0);
++	(void)atomic_xchg_unchecked((atomic_unchecked_t *)NULL, 0);
++#ifdef CONFIG_X86
++	atomic_clear_mask_unchecked(0, NULL);
++	atomic_set_mask_unchecked(0, NULL);
++#endif
++
++	atomic_long_read_unchecked((atomic_long_unchecked_t *)NULL);
++	atomic_long_set_unchecked((atomic_long_unchecked_t *)NULL, 0);
++	atomic_long_add_unchecked(0, (atomic_long_unchecked_t *)NULL);
++	atomic_long_sub_unchecked(0, (atomic_long_unchecked_t *)NULL);
++	atomic_long_inc_unchecked((atomic_long_unchecked_t *)NULL);
++	atomic_long_add_return_unchecked(0, (atomic_long_unchecked_t *)NULL);
++	atomic_long_inc_return_unchecked((atomic_long_unchecked_t *)NULL);
++	atomic_long_dec_unchecked((atomic_long_unchecked_t *)NULL);
++}
++#else
++#define atomic_read_unchecked(v) atomic_read(v)
++#define atomic_set_unchecked(v, i) atomic_set((v), (i))
++#define atomic_add_unchecked(i, v) atomic_add((i), (v))
++#define atomic_sub_unchecked(i, v) atomic_sub((i), (v))
++#define atomic_inc_unchecked(v) atomic_inc(v)
++#define atomic_inc_and_test_unchecked(v) atomic_inc_and_test(v)
++#define atomic_inc_return_unchecked(v) atomic_inc_return(v)
++#define atomic_add_return_unchecked(i, v) atomic_add_return((i), (v))
++#define atomic_dec_unchecked(v) atomic_dec(v)
++#define atomic_cmpxchg_unchecked(v, o, n) atomic_cmpxchg((v), (o), (n))
++#define atomic_xchg_unchecked(v, i) atomic_xchg((v), (i))
++#define atomic_clear_mask_unchecked(mask, v) atomic_clear_mask((mask), (v))
++#define atomic_set_mask_unchecked(mask, v) atomic_set_mask((mask), (v))
++
++#define atomic_long_read_unchecked(v) atomic_long_read(v)
++#define atomic_long_set_unchecked(v, i) atomic_long_set((v), (i))
++#define atomic_long_add_unchecked(i, v) atomic_long_add((i), (v))
++#define atomic_long_sub_unchecked(i, v) atomic_long_sub((i), (v))
++#define atomic_long_inc_unchecked(v) atomic_long_inc(v)
++#define atomic_long_add_return_unchecked(i, v) atomic_long_add_return((i), (v))
++#define atomic_long_inc_return_unchecked(v) atomic_long_inc_return(v)
++#define atomic_long_dec_unchecked(v) atomic_long_dec(v)
++#endif
++
+ #endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */
+diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h
+index 33bd2de..f31bff97 100644
+--- a/include/asm-generic/atomic.h
++++ b/include/asm-generic/atomic.h
+@@ -153,7 +153,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+  * Atomically clears the bits set in @mask from @v
+  */
+ #ifndef atomic_clear_mask
+-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
++static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
+ {
+ 	unsigned long flags;
+ 
+diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
+index b18ce4f..2ee2843 100644
+--- a/include/asm-generic/atomic64.h
++++ b/include/asm-generic/atomic64.h
+@@ -16,6 +16,8 @@ typedef struct {
+ 	long long counter;
+ } atomic64_t;
+ 
++typedef atomic64_t atomic64_unchecked_t;
++
+ #define ATOMIC64_INIT(i)	{ (i) }
+ 
+ extern long long atomic64_read(const atomic64_t *v);
+@@ -39,4 +41,14 @@ extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
+ #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
+ #define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
+ 
++#define atomic64_read_unchecked(v) atomic64_read(v)
++#define atomic64_set_unchecked(v, i) atomic64_set((v), (i))
++#define atomic64_add_unchecked(a, v) atomic64_add((a), (v))
++#define atomic64_add_return_unchecked(a, v) atomic64_add_return((a), (v))
++#define atomic64_sub_unchecked(a, v) atomic64_sub((a), (v))
++#define atomic64_inc_unchecked(v) atomic64_inc(v)
++#define atomic64_inc_return_unchecked(v) atomic64_inc_return(v)
++#define atomic64_dec_unchecked(v) atomic64_dec(v)
++#define atomic64_cmpxchg_unchecked(v, o, n) atomic64_cmpxchg((v), (o), (n))
++
+ #endif  /*  _ASM_GENERIC_ATOMIC64_H  */
+diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
+index 6f692f8..2ad9dd2 100644
+--- a/include/asm-generic/barrier.h
++++ b/include/asm-generic/barrier.h
+@@ -66,7 +66,7 @@
+ do {									\
+ 	compiletime_assert_atomic_type(*p);				\
+ 	smp_mb();							\
+-	ACCESS_ONCE(*p) = (v);						\
++	ACCESS_ONCE_RW(*p) = (v);					\
+ } while (0)
+ 
+ #define smp_load_acquire(p)						\
+diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
+index a60a7cc..0fe12f2 100644
+--- a/include/asm-generic/bitops/__fls.h
++++ b/include/asm-generic/bitops/__fls.h
+@@ -9,7 +9,7 @@
+  *
+  * Undefined if no set bit exists, so code should check against 0 first.
+  */
+-static __always_inline unsigned long __fls(unsigned long word)
++static __always_inline unsigned long __intentional_overflow(-1) __fls(unsigned long word)
+ {
+ 	int num = BITS_PER_LONG - 1;
+ 
+diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
+index 0576d1f..dad6c71 100644
+--- a/include/asm-generic/bitops/fls.h
++++ b/include/asm-generic/bitops/fls.h
+@@ -9,7 +9,7 @@
+  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+  */
+ 
+-static __always_inline int fls(int x)
++static __always_inline int __intentional_overflow(-1) fls(int x)
+ {
+ 	int r = 32;
+ 
+diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
+index b097cf8..3d40e14 100644
+--- a/include/asm-generic/bitops/fls64.h
++++ b/include/asm-generic/bitops/fls64.h
+@@ -15,7 +15,7 @@
+  * at position 64.
+  */
+ #if BITS_PER_LONG == 32
+-static __always_inline int fls64(__u64 x)
++static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
+ {
+ 	__u32 h = x >> 32;
+ 	if (h)
+@@ -23,7 +23,7 @@ static __always_inline int fls64(__u64 x)
+ 	return fls(x);
+ }
+ #elif BITS_PER_LONG == 64
+-static __always_inline int fls64(__u64 x)
++static __always_inline int __intentional_overflow(-1) fls64(__u64 x)
+ {
+ 	if (x == 0)
+ 		return 0;
+diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
+index 1bfcfe5..e04c5c9 100644
+--- a/include/asm-generic/cache.h
++++ b/include/asm-generic/cache.h
+@@ -6,7 +6,7 @@
+  * cache lines need to provide their own cache.h.
+  */
+ 
+-#define L1_CACHE_SHIFT		5
+-#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
++#define L1_CACHE_SHIFT		5UL
++#define L1_CACHE_BYTES		(1UL << L1_CACHE_SHIFT)
+ 
+ #endif /* __ASM_GENERIC_CACHE_H */
+diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
+index 0d68a1e..b74a761 100644
+--- a/include/asm-generic/emergency-restart.h
++++ b/include/asm-generic/emergency-restart.h
+@@ -1,7 +1,7 @@
+ #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
+ #define _ASM_GENERIC_EMERGENCY_RESTART_H
+ 
+-static inline void machine_emergency_restart(void)
++static inline __noreturn void machine_emergency_restart(void)
+ {
+ 	machine_restart(NULL);
+ }
+diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
+index 90f99c7..00ce236 100644
+--- a/include/asm-generic/kmap_types.h
++++ b/include/asm-generic/kmap_types.h
+@@ -2,9 +2,9 @@
+ #define _ASM_GENERIC_KMAP_TYPES_H
+ 
+ #ifdef __WITH_KM_FENCE
+-# define KM_TYPE_NR 41
++# define KM_TYPE_NR 42
+ #else
+-# define KM_TYPE_NR 20
++# define KM_TYPE_NR 21
+ #endif
+ 
+ #endif
+diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
+index 9ceb03b..62b0b8f 100644
+--- a/include/asm-generic/local.h
++++ b/include/asm-generic/local.h
+@@ -23,24 +23,37 @@ typedef struct
+ 	atomic_long_t a;
+ } local_t;
+ 
++typedef struct {
++	atomic_long_unchecked_t a;
++} local_unchecked_t;
++
+ #define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
+ 
+ #define local_read(l)	atomic_long_read(&(l)->a)
++#define local_read_unchecked(l)	atomic_long_read_unchecked(&(l)->a)
+ #define local_set(l,i)	atomic_long_set((&(l)->a),(i))
++#define local_set_unchecked(l,i)	atomic_long_set_unchecked((&(l)->a),(i))
+ #define local_inc(l)	atomic_long_inc(&(l)->a)
++#define local_inc_unchecked(l)	atomic_long_inc_unchecked(&(l)->a)
+ #define local_dec(l)	atomic_long_dec(&(l)->a)
++#define local_dec_unchecked(l)	atomic_long_dec_unchecked(&(l)->a)
+ #define local_add(i,l)	atomic_long_add((i),(&(l)->a))
++#define local_add_unchecked(i,l)	atomic_long_add_unchecked((i),(&(l)->a))
+ #define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
++#define local_sub_unchecked(i,l)	atomic_long_sub_unchecked((i),(&(l)->a))
+ 
+ #define local_sub_and_test(i, l) atomic_long_sub_and_test((i), (&(l)->a))
+ #define local_dec_and_test(l) atomic_long_dec_and_test(&(l)->a)
+ #define local_inc_and_test(l) atomic_long_inc_and_test(&(l)->a)
+ #define local_add_negative(i, l) atomic_long_add_negative((i), (&(l)->a))
+ #define local_add_return(i, l) atomic_long_add_return((i), (&(l)->a))
++#define local_add_return_unchecked(i, l) atomic_long_add_return_unchecked((i), (&(l)->a))
+ #define local_sub_return(i, l) atomic_long_sub_return((i), (&(l)->a))
+ #define local_inc_return(l) atomic_long_inc_return(&(l)->a)
++#define local_dec_return(l) atomic_long_dec_return(&(l)->a)
+ 
+ #define local_cmpxchg(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
++#define local_cmpxchg_unchecked(l, o, n) atomic_long_cmpxchg((&(l)->a), (o), (n))
+ #define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))
+ #define local_add_unless(l, _a, u) atomic_long_add_unless((&(l)->a), (_a), (u))
+ #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a)
+diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
+index 725612b..9cc513a 100644
+--- a/include/asm-generic/pgtable-nopmd.h
++++ b/include/asm-generic/pgtable-nopmd.h
+@@ -1,14 +1,19 @@
+ #ifndef _PGTABLE_NOPMD_H
+ #define _PGTABLE_NOPMD_H
+ 
+-#ifndef __ASSEMBLY__
+-
+ #include <asm-generic/pgtable-nopud.h>
+ 
+-struct mm_struct;
+-
+ #define __PAGETABLE_PMD_FOLDED
+ 
++#define PMD_SHIFT	PUD_SHIFT
++#define PTRS_PER_PMD	1
++#define PMD_SIZE  	(_AC(1,UL) << PMD_SHIFT)
++#define PMD_MASK  	(~(PMD_SIZE-1))
++
++#ifndef __ASSEMBLY__
++
++struct mm_struct;
++
+ /*
+  * Having the pmd type consist of a pud gets the size right, and allows
+  * us to conceptually access the pud entry that this pmd is folded into
+@@ -16,11 +21,6 @@ struct mm_struct;
+  */
+ typedef struct { pud_t pud; } pmd_t;
+ 
+-#define PMD_SHIFT	PUD_SHIFT
+-#define PTRS_PER_PMD	1
+-#define PMD_SIZE  	(1UL << PMD_SHIFT)
+-#define PMD_MASK  	(~(PMD_SIZE-1))
+-
+ /*
+  * The "pud_xxx()" functions here are trivial for a folded two-level
+  * setup: the pmd is never bad, and a pmd always exists (as it's folded
+diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
+index 810431d..0ec4804f 100644
+--- a/include/asm-generic/pgtable-nopud.h
++++ b/include/asm-generic/pgtable-nopud.h
+@@ -1,10 +1,15 @@
+ #ifndef _PGTABLE_NOPUD_H
+ #define _PGTABLE_NOPUD_H
+ 
+-#ifndef __ASSEMBLY__
+-
+ #define __PAGETABLE_PUD_FOLDED
+ 
++#define PUD_SHIFT	PGDIR_SHIFT
++#define PTRS_PER_PUD	1
++#define PUD_SIZE  	(_AC(1,UL) << PUD_SHIFT)
++#define PUD_MASK  	(~(PUD_SIZE-1))
++
++#ifndef __ASSEMBLY__
++
+ /*
+  * Having the pud type consist of a pgd gets the size right, and allows
+  * us to conceptually access the pgd entry that this pud is folded into
+@@ -12,11 +17,6 @@
+  */
+ typedef struct { pgd_t pgd; } pud_t;
+ 
+-#define PUD_SHIFT	PGDIR_SHIFT
+-#define PTRS_PER_PUD	1
+-#define PUD_SIZE  	(1UL << PUD_SHIFT)
+-#define PUD_MASK  	(~(PUD_SIZE-1))
+-
+ /*
+  * The "pgd_xxx()" functions here are trivial for a folded two-level
+  * setup: the pud is never bad, and a pud always exists (as it's folded
+@@ -29,6 +29,7 @@ static inline void pgd_clear(pgd_t *pgd)	{ }
+ #define pud_ERROR(pud)				(pgd_ERROR((pud).pgd))
+ 
+ #define pgd_populate(mm, pgd, pud)		do { } while (0)
++#define pgd_populate_kernel(mm, pgd, pud)	do { } while (0)
+ /*
+  * (puds are folded into pgds so this doesn't get actually called,
+  * but the define is needed for a generic inline function.)
+diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
+index 38a7437..47f62a4 100644
+--- a/include/asm-generic/pgtable.h
++++ b/include/asm-generic/pgtable.h
+@@ -802,6 +802,22 @@ static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr,
+ }
+ #endif /* CONFIG_NUMA_BALANCING */
+ 
++#ifndef __HAVE_ARCH_PAX_OPEN_KERNEL
++#ifdef CONFIG_PAX_KERNEXEC
++#error KERNEXEC requires pax_open_kernel
++#else
++static inline unsigned long pax_open_kernel(void) { return 0; }
++#endif
++#endif
++
++#ifndef __HAVE_ARCH_PAX_CLOSE_KERNEL
++#ifdef CONFIG_PAX_KERNEXEC
++#error KERNEXEC requires pax_close_kernel
++#else
++static inline unsigned long pax_close_kernel(void) { return 0; }
++#endif
++#endif
++
+ #endif /* CONFIG_MMU */
+ 
+ #endif /* !__ASSEMBLY__ */
+diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
+index 72d8803..cb9749c 100644
+--- a/include/asm-generic/uaccess.h
++++ b/include/asm-generic/uaccess.h
+@@ -343,4 +343,20 @@ clear_user(void __user *to, unsigned long n)
+ 	return __clear_user(to, n);
+ }
+ 
++#ifndef __HAVE_ARCH_PAX_OPEN_USERLAND
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++#error UDEREF requires pax_open_userland
++#else
++static inline unsigned long pax_open_userland(void) { return 0; }
++#endif
++#endif
++
++#ifndef __HAVE_ARCH_PAX_CLOSE_USERLAND
++#ifdef CONFIG_PAX_MEMORY_UDEREF
++#error UDEREF requires pax_close_userland
++#else
++static inline unsigned long pax_close_userland(void) { return 0; }
++#endif
++#endif
++
+ #endif /* __ASM_GENERIC_UACCESS_H */
+diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
+index bc2121f..2f41f9a 100644
+--- a/include/asm-generic/vmlinux.lds.h
++++ b/include/asm-generic/vmlinux.lds.h
+@@ -232,6 +232,7 @@
+ 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
+ 		VMLINUX_SYMBOL(__start_rodata) = .;			\
+ 		*(.rodata) *(.rodata.*)					\
++		*(.data..read_only)					\
+ 		*(__vermagic)		/* Kernel version magic */	\
+ 		. = ALIGN(8);						\
+ 		VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .;		\
+@@ -716,17 +717,18 @@
+  * section in the linker script will go there too.  @phdr should have
+  * a leading colon.
+  *
+- * Note that this macros defines __per_cpu_load as an absolute symbol.
++ * Note that this macros defines per_cpu_load as an absolute symbol.
+  * If there is no need to put the percpu section at a predetermined
+  * address, use PERCPU_SECTION.
+  */
+ #define PERCPU_VADDR(cacheline, vaddr, phdr)				\
+-	VMLINUX_SYMBOL(__per_cpu_load) = .;				\
+-	.data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load)		\
++	per_cpu_load = .;						\
++	.data..percpu vaddr : AT(VMLINUX_SYMBOL(per_cpu_load)		\
+ 				- LOAD_OFFSET) {			\
++		VMLINUX_SYMBOL(__per_cpu_load) = . + per_cpu_load;	\
+ 		PERCPU_INPUT(cacheline)					\
+ 	} phdr								\
+-	. = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
++	. = VMLINUX_SYMBOL(per_cpu_load) + SIZEOF(.data..percpu);
+ 
+ /**
+  * PERCPU_SECTION - define output section for percpu area, simple version
+diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
+index e73c19e..5b89e00 100644
+--- a/include/crypto/algapi.h
++++ b/include/crypto/algapi.h
+@@ -34,7 +34,7 @@ struct crypto_type {
+ 	unsigned int maskclear;
+ 	unsigned int maskset;
+ 	unsigned int tfmsize;
+-};
++} __do_const;
+ 
+ struct crypto_instance {
+ 	struct crypto_alg alg;
+diff --git a/include/drm/drmP.h b/include/drm/drmP.h
+index 04a7f31..668d424 100644
+--- a/include/drm/drmP.h
++++ b/include/drm/drmP.h
+@@ -67,6 +67,7 @@
+ #include <linux/workqueue.h>
+ #include <linux/poll.h>
+ #include <asm/pgalloc.h>
++#include <asm/local.h>
+ #include <drm/drm.h>
+ #include <drm/drm_sarea.h>
+ #include <drm/drm_vma_manager.h>
+@@ -297,10 +298,12 @@ do {										\
+  * \param cmd command.
+  * \param arg argument.
+  */
+-typedef int drm_ioctl_t(struct drm_device *dev, void *data,
++typedef int (* const drm_ioctl_t)(struct drm_device *dev, void *data,
++			struct drm_file *file_priv);
++typedef int (* drm_ioctl_no_const_t)(struct drm_device *dev, void *data,
+ 			struct drm_file *file_priv);
+ 
+-typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
++typedef int (* const drm_ioctl_compat_t)(struct file *filp, unsigned int cmd,
+ 			       unsigned long arg);
+ 
+ #define DRM_IOCTL_NR(n)                _IOC_NR(n)
+@@ -316,10 +319,10 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
+ struct drm_ioctl_desc {
+ 	unsigned int cmd;
+ 	int flags;
+-	drm_ioctl_t *func;
++	drm_ioctl_t func;
+ 	unsigned int cmd_drv;
+ 	const char *name;
+-};
++} __do_const;
+ 
+ /**
+  * Creates a driver or general drm_ioctl_desc array entry for the given
+@@ -1022,7 +1025,8 @@ struct drm_info_list {
+ 	int (*show)(struct seq_file*, void*); /** show callback */
+ 	u32 driver_features; /**< Required driver features for this entry */
+ 	void *data;
+-};
++} __do_const;
++typedef struct drm_info_list __no_const drm_info_list_no_const;
+ 
+ /**
+  * debugfs node structure. This structure represents a debugfs file.
+@@ -1106,7 +1110,7 @@ struct drm_device {
+ 
+ 	/** \name Usage Counters */
+ 	/*@{ */
+-	int open_count;			/**< Outstanding files open */
++	local_t open_count;		/**< Outstanding files open */
+ 	int buf_use;			/**< Buffers in use -- cannot alloc */
+ 	atomic_t buf_alloc;		/**< Buffer allocation in progress */
+ 	/*@} */
+diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
+index b1388b5..e1d1163 100644
+--- a/include/drm/drm_crtc_helper.h
++++ b/include/drm/drm_crtc_helper.h
+@@ -109,7 +109,7 @@ struct drm_encoder_helper_funcs {
+ 					    struct drm_connector *connector);
+ 	/* disable encoder when not in use - more explicit than dpms off */
+ 	void (*disable)(struct drm_encoder *encoder);
+-};
++} __no_const;
+ 
+ /**
+  * drm_connector_helper_funcs - helper operations for connectors
+diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
+index 940ece4..8cb727f 100644
+--- a/include/drm/i915_pciids.h
++++ b/include/drm/i915_pciids.h
+@@ -37,7 +37,7 @@
+  */
+ #define INTEL_VGA_DEVICE(id, info) {		\
+ 	0x8086,	id,				\
+-	~0, ~0,					\
++	PCI_ANY_ID, PCI_ANY_ID,			\
+ 	0x030000, 0xff0000,			\
+ 	(unsigned long) info }
+ 
+diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
+index 72dcbe8..8db58d7 100644
+--- a/include/drm/ttm/ttm_memory.h
++++ b/include/drm/ttm/ttm_memory.h
+@@ -48,7 +48,7 @@
+ 
+ struct ttm_mem_shrink {
+ 	int (*do_shrink) (struct ttm_mem_shrink *);
+-};
++} __no_const;
+ 
+ /**
+  * struct ttm_mem_global - Global memory accounting structure.
+diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
+index 49a8284..9643967 100644
+--- a/include/drm/ttm/ttm_page_alloc.h
++++ b/include/drm/ttm/ttm_page_alloc.h
+@@ -80,6 +80,7 @@ void ttm_dma_page_alloc_fini(void);
+  */
+ extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
+ 
++struct device;
+ extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
+ extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
+ 
+diff --git a/include/keys/asymmetric-subtype.h b/include/keys/asymmetric-subtype.h
+index 4b840e8..155d235 100644
+--- a/include/keys/asymmetric-subtype.h
++++ b/include/keys/asymmetric-subtype.h
+@@ -37,7 +37,7 @@ struct asymmetric_key_subtype {
+ 	/* Verify the signature on a key of this subtype (optional) */
+ 	int (*verify_signature)(const struct key *key,
+ 				const struct public_key_signature *sig);
+-};
++} __do_const;
+ 
+ /**
+  * asymmetric_key_subtype - Get the subtype from an asymmetric key
+diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
+index c1da539..1dcec55 100644
+--- a/include/linux/atmdev.h
++++ b/include/linux/atmdev.h
+@@ -28,7 +28,7 @@ struct compat_atm_iobuf {
+ #endif
+ 
+ struct k_atm_aal_stats {
+-#define __HANDLE_ITEM(i) atomic_t i
++#define __HANDLE_ITEM(i) atomic_unchecked_t i
+ 	__AAL_STAT_ITEMS
+ #undef __HANDLE_ITEM
+ };
+@@ -200,7 +200,7 @@ struct atmdev_ops { /* only send is required */
+ 	int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
+ 	int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
+ 	struct module *owner;
+-};
++} __do_const ;
+ 
+ struct atmphy_ops {
+ 	int (*start)(struct atm_dev *dev);
+diff --git a/include/linux/audit.h b/include/linux/audit.h
+index 419b7d7..b79b4f2 100644
+--- a/include/linux/audit.h
++++ b/include/linux/audit.h
+@@ -200,7 +200,7 @@ static inline void audit_ptrace(struct task_struct *t)
+ extern unsigned int audit_serial(void);
+ extern int auditsc_get_stamp(struct audit_context *ctx,
+ 			      struct timespec *t, unsigned int *serial);
+-extern int audit_set_loginuid(kuid_t loginuid);
++extern int __intentional_overflow(-1) audit_set_loginuid(kuid_t loginuid);
+ 
+ static inline kuid_t audit_get_loginuid(struct task_struct *tsk)
+ {
+diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
+index b4a745d..e3c0942 100644
+--- a/include/linux/binfmts.h
++++ b/include/linux/binfmts.h
+@@ -45,7 +45,7 @@ struct linux_binprm {
+ 	unsigned interp_data;
+ 	unsigned long loader, exec;
+ 	char tcomm[TASK_COMM_LEN];
+-};
++} __randomize_layout;
+ 
+ #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
+ #define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
+@@ -74,8 +74,10 @@ struct linux_binfmt {
+ 	int (*load_binary)(struct linux_binprm *);
+ 	int (*load_shlib)(struct file *);
+ 	int (*core_dump)(struct coredump_params *cprm);
++	void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags);
++	void (*handle_mmap)(struct file *);
+ 	unsigned long min_coredump;	/* minimal dump size */
+-};
++} __do_const __randomize_layout;
+ 
+ extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
+ 
+diff --git a/include/linux/bitops.h b/include/linux/bitops.h
+index 5d858e0..336c1d9 100644
+--- a/include/linux/bitops.h
++++ b/include/linux/bitops.h
+@@ -105,7 +105,7 @@ static inline __u64 ror64(__u64 word, unsigned int shift)
+  * @word: value to rotate
+  * @shift: bits to roll
+  */
+-static inline __u32 rol32(__u32 word, unsigned int shift)
++static inline __u32 __intentional_overflow(-1) rol32(__u32 word, unsigned int shift)
+ {
+ 	return (word << shift) | (word >> (32 - shift));
+ }
+@@ -115,7 +115,7 @@ static inline __u32 rol32(__u32 word, unsigned int shift)
+  * @word: value to rotate
+  * @shift: bits to roll
+  */
+-static inline __u32 ror32(__u32 word, unsigned int shift)
++static inline __u32 __intentional_overflow(-1) ror32(__u32 word, unsigned int shift)
+ {
+ 	return (word >> shift) | (word << (32 - shift));
+ }
+@@ -171,7 +171,7 @@ static inline __s32 sign_extend32(__u32 value, int index)
+ 	return (__s32)(value << shift) >> shift;
+ }
+ 
+-static inline unsigned fls_long(unsigned long l)
++static inline unsigned __intentional_overflow(-1) fls_long(unsigned long l)
+ {
+ 	if (sizeof(l) == 4)
+ 		return fls(l);
+diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
+index a693c6d..cec897f 100644
+--- a/include/linux/blkdev.h
++++ b/include/linux/blkdev.h
+@@ -1571,7 +1571,7 @@ struct block_device_operations {
+ 	/* this callback is with swap_lock and sometimes page table lock held */
+ 	void (*swap_slot_free_notify) (struct block_device *, unsigned long);
+ 	struct module *owner;
+-};
++} __do_const;
+ 
+ extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int,
+ 				 unsigned long);
+diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
+index afc1343..9735539 100644
+--- a/include/linux/blktrace_api.h
++++ b/include/linux/blktrace_api.h
+@@ -25,7 +25,7 @@ struct blk_trace {
+ 	struct dentry *dropped_file;
+ 	struct dentry *msg_file;
+ 	struct list_head running_list;
+-	atomic_t dropped;
++	atomic_unchecked_t dropped;
+ };
+ 
+ extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *);
+diff --git a/include/linux/cache.h b/include/linux/cache.h
+index 17e7e82..1d7da26 100644
+--- a/include/linux/cache.h
++++ b/include/linux/cache.h
+@@ -16,6 +16,14 @@
+ #define __read_mostly
+ #endif
+ 
++#ifndef __read_only
++#ifdef CONFIG_PAX_KERNEXEC
++#error KERNEXEC requires __read_only
++#else
++#define __read_only __read_mostly
++#endif
++#endif
++
+ #ifndef ____cacheline_aligned
+ #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
+ #endif
+diff --git a/include/linux/capability.h b/include/linux/capability.h
+index aa93e5e..18bb953 100644
+--- a/include/linux/capability.h
++++ b/include/linux/capability.h
+@@ -215,8 +215,13 @@ extern bool capable(int cap);
+ extern bool ns_capable(struct user_namespace *ns, int cap);
+ extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
+ extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
++extern bool capable_nolog(int cap);
++extern bool ns_capable_nolog(struct user_namespace *ns, int cap);
++extern bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap);
+ 
+ /* audit system wants to get cap info from files as well */
+ extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
+ 
++extern int is_privileged_binary(const struct dentry *dentry);
++
+ #endif /* !_LINUX_CAPABILITY_H */
+diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
+index 8609d57..86e4d79 100644
+--- a/include/linux/cdrom.h
++++ b/include/linux/cdrom.h
+@@ -87,7 +87,6 @@ struct cdrom_device_ops {
+ 
+ /* driver specifications */
+ 	const int capability;   /* capability flags */
+-	int n_minors;           /* number of active minor devices */
+ 	/* handle uniform packets for scsi type devices (scsi,atapi) */
+ 	int (*generic_packet) (struct cdrom_device_info *,
+ 			       struct packet_command *);
+diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
+index 4ce9056..86caac6 100644
+--- a/include/linux/cleancache.h
++++ b/include/linux/cleancache.h
+@@ -31,7 +31,7 @@ struct cleancache_ops {
+ 	void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
+ 	void (*invalidate_inode)(int, struct cleancache_filekey);
+ 	void (*invalidate_fs)(int);
+-};
++} __no_const;
+ 
+ extern struct cleancache_ops *
+ 	cleancache_register_ops(struct cleancache_ops *ops);
+diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
+index 939533d..cf0a57c 100644
+--- a/include/linux/clk-provider.h
++++ b/include/linux/clk-provider.h
+@@ -166,6 +166,7 @@ struct clk_ops {
+ 					   unsigned long parent_accuracy);
+ 	void		(*init)(struct clk_hw *hw);
+ };
++typedef struct clk_ops __no_const clk_ops_no_const;
+ 
+ /**
+  * struct clk_init_data - holds init data that's common to all clocks and is
+diff --git a/include/linux/compat.h b/include/linux/compat.h
+index 3f448c6..8dd869d 100644
+--- a/include/linux/compat.h
++++ b/include/linux/compat.h
+@@ -313,7 +313,7 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
+ 			   compat_size_t __user *len_ptr);
+ 
+ asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
+-asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
++asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg) __intentional_overflow(0);
+ asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
+ asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
+ 		compat_ssize_t msgsz, int msgflg);
+@@ -322,7 +322,7 @@ asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
+ long compat_sys_msgctl(int first, int second, void __user *uptr);
+ long compat_sys_shmctl(int first, int second, void __user *uptr);
+ long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
+-		unsigned nsems, const struct compat_timespec __user *timeout);
++		compat_long_t nsems, const struct compat_timespec __user *timeout);
+ asmlinkage long compat_sys_keyctl(u32 option,
+ 			      u32 arg2, u32 arg3, u32 arg4, u32 arg5);
+ asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
+@@ -420,7 +420,7 @@ extern int compat_ptrace_request(struct task_struct *child,
+ extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+ 			       compat_ulong_t addr, compat_ulong_t data);
+ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
+-				  compat_long_t addr, compat_long_t data);
++				  compat_ulong_t addr, compat_ulong_t data);
+ 
+ asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
+ /*
+diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
+index 2507fd2..55203f8 100644
+--- a/include/linux/compiler-gcc4.h
++++ b/include/linux/compiler-gcc4.h
+@@ -39,9 +39,34 @@
+ # define __compiletime_warning(message) __attribute__((warning(message)))
+ # define __compiletime_error(message) __attribute__((error(message)))
+ #endif /* __CHECKER__ */
++
++#define __alloc_size(...)	__attribute((alloc_size(__VA_ARGS__)))
++#define __bos(ptr, arg)		__builtin_object_size((ptr), (arg))
++#define __bos0(ptr)		__bos((ptr), 0)
++#define __bos1(ptr)		__bos((ptr), 1)
+ #endif /* GCC_VERSION >= 40300 */
+ 
+ #if GCC_VERSION >= 40500
++
++#ifdef RANDSTRUCT_PLUGIN
++#define __randomize_layout __attribute__((randomize_layout))
++#define __no_randomize_layout __attribute__((no_randomize_layout))
++#endif
++
++#ifdef CONSTIFY_PLUGIN
++#define __no_const __attribute__((no_const))
++#define __do_const __attribute__((do_const))
++#endif
++
++#ifdef SIZE_OVERFLOW_PLUGIN
++#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
++#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
++#endif
++
++#ifdef LATENT_ENTROPY_PLUGIN
++#define __latent_entropy __attribute__((latent_entropy))
++#endif
++
+ /*
+  * Mark a position in code as unreachable.  This can be used to
+  * suppress control flow warnings after asm blocks that transfer
+diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h
+index cdd1cc2..9c1ee22 100644
+--- a/include/linux/compiler-gcc5.h
++++ b/include/linux/compiler-gcc5.h
+@@ -28,6 +28,31 @@
+ # define __compiletime_error(message) __attribute__((error(message)))
+ #endif /* __CHECKER__ */
+ 
++#define __alloc_size(...)	__attribute((alloc_size(__VA_ARGS__)))
++#define __bos(ptr, arg)		__builtin_object_size((ptr), (arg))
++#define __bos0(ptr)		__bos((ptr), 0)
++#define __bos1(ptr)		__bos((ptr), 1)
++
++#ifdef RANDSTRUCT_PLUGIN
++#define __randomize_layout __attribute__((randomize_layout))
++#define __no_randomize_layout __attribute__((no_randomize_layout))
++#endif
++
++#ifdef CONSTIFY_PLUGIN
++#define __no_const __attribute__((no_const))
++#define __do_const __attribute__((do_const))
++#endif
++
++#ifdef SIZE_OVERFLOW_PLUGIN
++#error not yet
++#define __size_overflow(...) __attribute__((size_overflow(__VA_ARGS__)))
++#define __intentional_overflow(...) __attribute__((intentional_overflow(__VA_ARGS__)))
++#endif
++
++#ifdef LATENT_ENTROPY_PLUGIN
++#define __latent_entropy __attribute__((latent_entropy))
++#endif
++
+ /*
+  * Mark a position in code as unreachable.  This can be used to
+  * suppress control flow warnings after asm blocks that transfer
+@@ -53,7 +78,6 @@
+  *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+  *
+  * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+- * Fixed in GCC 4.8.2 and later versions.
+  *
+  * (asm goto is automatically volatile - the naming reflects this.)
+  */
+diff --git a/include/linux/compiler.h b/include/linux/compiler.h
+index 2472740..73ef938 100644
+--- a/include/linux/compiler.h
++++ b/include/linux/compiler.h
+@@ -5,11 +5,14 @@
+ 
+ #ifdef __CHECKER__
+ # define __user		__attribute__((noderef, address_space(1)))
++# define __force_user	__force __user
+ # define __kernel	__attribute__((address_space(0)))
++# define __force_kernel	__force __kernel
+ # define __safe		__attribute__((safe))
+ # define __force	__attribute__((force))
+ # define __nocast	__attribute__((nocast))
+ # define __iomem	__attribute__((noderef, address_space(2)))
++# define __force_iomem	__force __iomem
+ # define __must_hold(x)	__attribute__((context(x,1,1)))
+ # define __acquires(x)	__attribute__((context(x,0,1)))
+ # define __releases(x)	__attribute__((context(x,1,0)))
+@@ -17,20 +20,37 @@
+ # define __release(x)	__context__(x,-1)
+ # define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
+ # define __percpu	__attribute__((noderef, address_space(3)))
++# define __force_percpu	__force __percpu
+ #ifdef CONFIG_SPARSE_RCU_POINTER
+ # define __rcu		__attribute__((noderef, address_space(4)))
++# define __force_rcu	__force __rcu
+ #else
+ # define __rcu
++# define __force_rcu
+ #endif
+ extern void __chk_user_ptr(const volatile void __user *);
+ extern void __chk_io_ptr(const volatile void __iomem *);
+ #else
+-# define __user
+-# define __kernel
++# ifdef CHECKER_PLUGIN
++//#  define __user
++//#  define __force_user
++//#  define __kernel
++//#  define __force_kernel
++# else
++#  ifdef STRUCTLEAK_PLUGIN
++#   define __user __attribute__((user))
++#  else
++#   define __user
++#  endif
++#  define __force_user
++#  define __kernel
++#  define __force_kernel
++# endif
+ # define __safe
+ # define __force
+ # define __nocast
+ # define __iomem
++# define __force_iomem
+ # define __chk_user_ptr(x) (void)0
+ # define __chk_io_ptr(x) (void)0
+ # define __builtin_warning(x, y...) (1)
+@@ -41,7 +61,9 @@ extern void __chk_io_ptr(const volatile void __iomem *);
+ # define __release(x) (void)0
+ # define __cond_lock(x,c) (c)
+ # define __percpu
++# define __force_percpu
+ # define __rcu
++# define __force_rcu
+ #endif
+ 
+ /* Indirect macros required for expanded argument pasting, eg. __LINE__. */
+@@ -279,6 +301,34 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
+ # define __attribute_const__	/* unimplemented */
+ #endif
+ 
++#ifndef __randomize_layout
++# define __randomize_layout
++#endif
++
++#ifndef __no_randomize_layout
++# define __no_randomize_layout
++#endif
++
++#ifndef __no_const
++# define __no_const
++#endif
++
++#ifndef __do_const
++# define __do_const
++#endif
++
++#ifndef __size_overflow
++# define __size_overflow(...)
++#endif
++
++#ifndef __intentional_overflow
++# define __intentional_overflow(...)
++#endif
++
++#ifndef __latent_entropy
++# define __latent_entropy
++#endif
++
+ /*
+  * Tell gcc if a function is cold. The compiler will assume any path
+  * directly leading to the call is unlikely.
+@@ -288,6 +338,22 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
+ #define __cold
+ #endif
+ 
++#ifndef __alloc_size
++#define __alloc_size(...)
++#endif
++
++#ifndef __bos
++#define __bos(ptr, arg)
++#endif
++
++#ifndef __bos0
++#define __bos0(ptr)
++#endif
++
++#ifndef __bos1
++#define __bos1(ptr)
++#endif
++
+ /* Simple shorthand for a section definition */
+ #ifndef __section
+ # define __section(S) __attribute__ ((__section__(#S)))
+@@ -302,6 +368,8 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
+ # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
+ #endif
+ 
++#define __type_is_unsigned(t) (__same_type((t)0, 0UL) || __same_type((t)0, 0U) || __same_type((t)0, (unsigned short)0) || __same_type((t)0, (unsigned char)0))
++
+ /* Is this type a native word size -- useful for atomic operations */
+ #ifndef __native_word
+ # define __native_word(t) (sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
+@@ -362,7 +430,8 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
+  * use is to mediate communication between process-level code and irq/NMI
+  * handlers, all running on the same CPU.
+  */
+-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
++#define ACCESS_ONCE(x) (*(volatile const typeof(x) *)&(x))
++#define ACCESS_ONCE_RW(x) (*(volatile typeof(x) *)&(x))
+ 
+ /* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */
+ #ifdef CONFIG_KPROBES
+diff --git a/include/linux/completion.h b/include/linux/completion.h
+index 5d5aaae..0ea9b84 100644
+--- a/include/linux/completion.h
++++ b/include/linux/completion.h
+@@ -90,16 +90,16 @@ static inline void reinit_completion(struct completion *x)
+ 
+ extern void wait_for_completion(struct completion *);
+ extern void wait_for_completion_io(struct completion *);
+-extern int wait_for_completion_interruptible(struct completion *x);
+-extern int wait_for_completion_killable(struct completion *x);
++extern int wait_for_completion_interruptible(struct completion *x) __intentional_overflow(-1);
++extern int wait_for_completion_killable(struct completion *x) __intentional_overflow(-1);
+ extern unsigned long wait_for_completion_timeout(struct completion *x,
+-						   unsigned long timeout);
++						   unsigned long timeout) __intentional_overflow(-1);
+ extern unsigned long wait_for_completion_io_timeout(struct completion *x,
+-						    unsigned long timeout);
++						    unsigned long timeout) __intentional_overflow(-1);
+ extern long wait_for_completion_interruptible_timeout(
+-	struct completion *x, unsigned long timeout);
++	struct completion *x, unsigned long timeout) __intentional_overflow(-1);
+ extern long wait_for_completion_killable_timeout(
+-	struct completion *x, unsigned long timeout);
++	struct completion *x, unsigned long timeout) __intentional_overflow(-1);
+ extern bool try_wait_for_completion(struct completion *x);
+ extern bool completion_done(struct completion *x);
+ 
+diff --git a/include/linux/configfs.h b/include/linux/configfs.h
+index 34025df..d94bbbc 100644
+--- a/include/linux/configfs.h
++++ b/include/linux/configfs.h
+@@ -125,7 +125,7 @@ struct configfs_attribute {
+ 	const char		*ca_name;
+ 	struct module 		*ca_owner;
+ 	umode_t			ca_mode;
+-};
++} __do_const;
+ 
+ /*
+  * Users often need to create attribute structures for their configurable
+diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
+index 4d89e0e..5281847 100644
+--- a/include/linux/cpufreq.h
++++ b/include/linux/cpufreq.h
+@@ -191,6 +191,7 @@ struct global_attr {
+ 	ssize_t (*store)(struct kobject *a, struct attribute *b,
+ 			 const char *c, size_t count);
+ };
++typedef struct global_attr __no_const global_attr_no_const;
+ 
+ #define define_one_global_ro(_name)		\
+ static struct global_attr _name =		\
+@@ -232,7 +233,7 @@ struct cpufreq_driver {
+ 	bool                    boost_supported;
+ 	bool                    boost_enabled;
+ 	int     (*set_boost)    (int state);
+-};
++} __do_const;
+ 
+ /* flags */
+ #define CPUFREQ_STICKY		(1 << 0)	/* driver isn't removed even if
+diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
+index d133817..3429a09 100644
+--- a/include/linux/cpuidle.h
++++ b/include/linux/cpuidle.h
+@@ -50,7 +50,8 @@ struct cpuidle_state {
+ 			int index);
+ 
+ 	int (*enter_dead) (struct cpuidle_device *dev, int index);
+-};
++} __do_const;
++typedef struct cpuidle_state __no_const cpuidle_state_no_const;
+ 
+ /* Idle State Flags */
+ #define CPUIDLE_FLAG_TIME_VALID	(0x01) /* is residency time measurable? */
+@@ -191,7 +192,7 @@ struct cpuidle_governor {
+ 	void (*reflect)		(struct cpuidle_device *dev, int index);
+ 
+ 	struct module 		*owner;
+-};
++} __do_const;
+ 
+ #ifdef CONFIG_CPU_IDLE
+ extern int cpuidle_register_governor(struct cpuidle_governor *gov);
+diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
+index d08e4d2..95fad61 100644
+--- a/include/linux/cpumask.h
++++ b/include/linux/cpumask.h
+@@ -118,17 +118,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
+ }
+ 
+ /* Valid inputs for n are -1 and 0. */
+-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
++static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
+ {
+ 	return n+1;
+ }
+ 
+-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
++static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
+ {
+ 	return n+1;
+ }
+ 
+-static inline unsigned int cpumask_next_and(int n,
++static inline unsigned int __intentional_overflow(-1) cpumask_next_and(int n,
+ 					    const struct cpumask *srcp,
+ 					    const struct cpumask *andp)
+ {
+@@ -167,7 +167,7 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
+  *
+  * Returns >= nr_cpu_ids if no further cpus set.
+  */
+-static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
++static inline unsigned int __intentional_overflow(-1) cpumask_next(int n, const struct cpumask *srcp)
+ {
+ 	/* -1 is a legal arg here. */
+ 	if (n != -1)
+@@ -182,7 +182,7 @@ static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
+  *
+  * Returns >= nr_cpu_ids if no further cpus unset.
+  */
+-static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
++static inline unsigned int __intentional_overflow(-1) cpumask_next_zero(int n, const struct cpumask *srcp)
+ {
+ 	/* -1 is a legal arg here. */
+ 	if (n != -1)
+@@ -190,7 +190,7 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp)
+ 	return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1);
+ }
+ 
+-int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *);
++int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *) __intentional_overflow(-1);
+ int cpumask_any_but(const struct cpumask *mask, unsigned int cpu);
+ 
+ /**
+diff --git a/include/linux/cred.h b/include/linux/cred.h
+index 6c58dd7..80d1d95 100644
+--- a/include/linux/cred.h
++++ b/include/linux/cred.h
+@@ -35,7 +35,7 @@ struct group_info {
+ 	int		nblocks;
+ 	kgid_t		small_block[NGROUPS_SMALL];
+ 	kgid_t		*blocks[0];
+-};
++} __randomize_layout;
+ 
+ /**
+  * get_group_info - Get a reference to a group info structure
+@@ -137,7 +137,7 @@ struct cred {
+ 	struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
+ 	struct group_info *group_info;	/* supplementary groups for euid/fsgid */
+ 	struct rcu_head	rcu;		/* RCU deletion hook */
+-};
++} __randomize_layout;
+ 
+ extern void __put_cred(struct cred *);
+ extern void exit_creds(struct task_struct *);
+@@ -195,6 +195,9 @@ static inline void validate_creds_for_do_exit(struct task_struct *tsk)
+ static inline void validate_process_creds(void)
+ {
+ }
++static inline void validate_task_creds(struct task_struct *task)
++{
++}
+ #endif
+ 
+ /**
+@@ -323,6 +326,7 @@ static inline void put_cred(const struct cred *_cred)
+ 
+ #define task_uid(task)		(task_cred_xxx((task), uid))
+ #define task_euid(task)		(task_cred_xxx((task), euid))
++#define task_securebits(task)	(task_cred_xxx((task), securebits))
+ 
+ #define current_cred_xxx(xxx)			\
+ ({						\
+diff --git a/include/linux/crypto.h b/include/linux/crypto.h
+index 2b00d92..ab50c5e 100644
+--- a/include/linux/crypto.h
++++ b/include/linux/crypto.h
+@@ -386,7 +386,7 @@ struct cipher_tfm {
+ 	                  const u8 *key, unsigned int keylen);
+ 	void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+ 	void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+-};
++} __no_const;
+ 
+ struct hash_tfm {
+ 	int (*init)(struct hash_desc *desc);
+@@ -407,13 +407,13 @@ struct compress_tfm {
+ 	int (*cot_decompress)(struct crypto_tfm *tfm,
+ 	                      const u8 *src, unsigned int slen,
+ 	                      u8 *dst, unsigned int *dlen);
+-};
++} __no_const;
+ 
+ struct rng_tfm {
+ 	int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
+ 			      unsigned int dlen);
+ 	int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
+-};
++} __no_const;
+ 
+ #define crt_ablkcipher	crt_u.ablkcipher
+ #define crt_aead	crt_u.aead
+diff --git a/include/linux/ctype.h b/include/linux/ctype.h
+index 653589e..4ef254a 100644
+--- a/include/linux/ctype.h
++++ b/include/linux/ctype.h
+@@ -56,7 +56,7 @@ static inline unsigned char __toupper(unsigned char c)
+  * Fast implementation of tolower() for internal usage. Do not use in your
+  * code.
+  */
+-static inline char _tolower(const char c)
++static inline unsigned char _tolower(const unsigned char c)
+ {
+ 	return c | 0x20;
+ }
+diff --git a/include/linux/dcache.h b/include/linux/dcache.h
+index 0f0eb1c..776283e 100644
+--- a/include/linux/dcache.h
++++ b/include/linux/dcache.h
+@@ -123,6 +123,9 @@ struct dentry {
+ 	unsigned long d_time;		/* used by d_revalidate */
+ 	void *d_fsdata;			/* fs-specific data */
+ 
++#ifdef CONFIG_GRKERNSEC_CHROOT_RENAME
++	atomic_t chroot_refcnt;		/* tracks use of directory in chroot */
++#endif
+ 	struct list_head d_lru;		/* LRU list */
+ 	struct list_head d_child;	/* child of parent list */
+ 	struct list_head d_subdirs;	/* our children */
+@@ -133,7 +136,7 @@ struct dentry {
+ 		struct hlist_node d_alias;	/* inode alias list */
+ 	 	struct rcu_head d_rcu;
+ 	} d_u;
+-};
++} __randomize_layout;
+ 
+ /*
+  * dentry->d_lock spinlock nesting subclasses:
+diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
+index 7925bf0..d5143d2 100644
+--- a/include/linux/decompress/mm.h
++++ b/include/linux/decompress/mm.h
+@@ -77,7 +77,7 @@ static void free(void *where)
+  * warnings when not needed (indeed large_malloc / large_free are not
+  * needed by inflate */
+ 
+-#define malloc(a) kmalloc(a, GFP_KERNEL)
++#define malloc(a) kmalloc((a), GFP_KERNEL)
+ #define free(a) kfree(a)
+ 
+ #define large_malloc(a) vmalloc(a)
+diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
+index d48dc00..211ee54 100644
+--- a/include/linux/devfreq.h
++++ b/include/linux/devfreq.h
+@@ -114,7 +114,7 @@ struct devfreq_governor {
+ 	int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
+ 	int (*event_handler)(struct devfreq *devfreq,
+ 				unsigned int event, void *data);
+-};
++} __do_const;
+ 
+ /**
+  * struct devfreq - Device devfreq structure
+diff --git a/include/linux/device.h b/include/linux/device.h
+index 952b010..d5b7691 100644
+--- a/include/linux/device.h
++++ b/include/linux/device.h
+@@ -310,7 +310,7 @@ struct subsys_interface {
+ 	struct list_head node;
+ 	int (*add_dev)(struct device *dev, struct subsys_interface *sif);
+ 	int (*remove_dev)(struct device *dev, struct subsys_interface *sif);
+-};
++} __do_const;
+ 
+ int subsys_interface_register(struct subsys_interface *sif);
+ void subsys_interface_unregister(struct subsys_interface *sif);
+@@ -506,7 +506,7 @@ struct device_type {
+ 	void (*release)(struct device *dev);
+ 
+ 	const struct dev_pm_ops *pm;
+-};
++} __do_const;
+ 
+ /* interface for exporting device attributes */
+ struct device_attribute {
+@@ -516,11 +516,12 @@ struct device_attribute {
+ 	ssize_t (*store)(struct device *dev, struct device_attribute *attr,
+ 			 const char *buf, size_t count);
+ };
++typedef struct device_attribute __no_const device_attribute_no_const;
+ 
+ struct dev_ext_attribute {
+ 	struct device_attribute attr;
+ 	void *var;
+-};
++} __do_const;
+ 
+ ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
+ 			  char *buf);
+diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
+index fd4aee2..1f28db9 100644
+--- a/include/linux/dma-mapping.h
++++ b/include/linux/dma-mapping.h
+@@ -54,7 +54,7 @@ struct dma_map_ops {
+ 	u64 (*get_required_mask)(struct device *dev);
+ #endif
+ 	int is_phys;
+-};
++} __do_const;
+ 
+ #define DMA_BIT_MASK(n)	(((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
+ 
+diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
+index 0a5f552..6661a5a 100644
+--- a/include/linux/dmaengine.h
++++ b/include/linux/dmaengine.h
+@@ -1151,9 +1151,9 @@ struct dma_pinned_list {
+ struct dma_pinned_list *dma_pin_iovec_pages(struct iovec *iov, size_t len);
+ void dma_unpin_iovec_pages(struct dma_pinned_list* pinned_list);
+ 
+-dma_cookie_t dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
++dma_cookie_t __intentional_overflow(0) dma_memcpy_to_iovec(struct dma_chan *chan, struct iovec *iov,
+ 	struct dma_pinned_list *pinned_list, unsigned char *kdata, size_t len);
+-dma_cookie_t dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
++dma_cookie_t __intentional_overflow(0) dma_memcpy_pg_to_iovec(struct dma_chan *chan, struct iovec *iov,
+ 	struct dma_pinned_list *pinned_list, struct page *page,
+ 	unsigned int offset, size_t len);
+ 
+diff --git a/include/linux/efi.h b/include/linux/efi.h
+index 0a819e7..8ed47f1 100644
+--- a/include/linux/efi.h
++++ b/include/linux/efi.h
+@@ -768,6 +768,7 @@ struct efivar_operations {
+ 	efi_set_variable_t *set_variable;
+ 	efi_query_variable_store_t *query_variable_store;
+ };
++typedef struct efivar_operations __no_const efivar_operations_no_const;
+ 
+ struct efivars {
+ 	/*
+diff --git a/include/linux/elf.h b/include/linux/elf.h
+index 67a5fa7..b817372 100644
+--- a/include/linux/elf.h
++++ b/include/linux/elf.h
+@@ -24,6 +24,7 @@ extern Elf32_Dyn _DYNAMIC [];
+ #define elf_note	elf32_note
+ #define elf_addr_t	Elf32_Off
+ #define Elf_Half	Elf32_Half
++#define elf_dyn		Elf32_Dyn
+ 
+ #else
+ 
+@@ -34,6 +35,7 @@ extern Elf64_Dyn _DYNAMIC [];
+ #define elf_note	elf64_note
+ #define elf_addr_t	Elf64_Off
+ #define Elf_Half	Elf64_Half
++#define elf_dyn		Elf64_Dyn
+ 
+ #endif
+ 
+diff --git a/include/linux/err.h b/include/linux/err.h
+index 15f92e0..e825a8e 100644
+--- a/include/linux/err.h
++++ b/include/linux/err.h
+@@ -19,12 +19,12 @@
+ 
+ #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO)
+ 
+-static inline void * __must_check ERR_PTR(long error)
++static inline void * __must_check __intentional_overflow(-1) ERR_PTR(long error)
+ {
+ 	return (void *) error;
+ }
+ 
+-static inline long __must_check PTR_ERR(__force const void *ptr)
++static inline long __must_check __intentional_overflow(-1) PTR_ERR(__force const void *ptr)
+ {
+ 	return (long) ptr;
+ }
+diff --git a/include/linux/extcon.h b/include/linux/extcon.h
+index 21c59af..6057a03 100644
+--- a/include/linux/extcon.h
++++ b/include/linux/extcon.h
+@@ -135,7 +135,7 @@ struct extcon_dev {
+ 	/* /sys/class/extcon/.../mutually_exclusive/... */
+ 	struct attribute_group attr_g_muex;
+ 	struct attribute **attrs_muex;
+-	struct device_attribute *d_attrs_muex;
++	device_attribute_no_const *d_attrs_muex;
+ };
+ 
+ /**
+diff --git a/include/linux/fb.h b/include/linux/fb.h
+index fe6ac95..898d41d 100644
+--- a/include/linux/fb.h
++++ b/include/linux/fb.h
+@@ -304,7 +304,7 @@ struct fb_ops {
+ 	/* called at KDB enter and leave time to prepare the console */
+ 	int (*fb_debug_enter)(struct fb_info *info);
+ 	int (*fb_debug_leave)(struct fb_info *info);
+-};
++} __do_const;
+ 
+ #ifdef CONFIG_FB_TILEBLITTING
+ #define FB_TILE_CURSOR_NONE        0
+diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
+index 70e8e21..1939916 100644
+--- a/include/linux/fdtable.h
++++ b/include/linux/fdtable.h
+@@ -102,7 +102,7 @@ struct files_struct *get_files_struct(struct task_struct *);
+ void put_files_struct(struct files_struct *fs);
+ void reset_files_struct(struct files_struct *);
+ int unshare_files(struct files_struct **);
+-struct files_struct *dup_fd(struct files_struct *, int *);
++struct files_struct *dup_fd(struct files_struct *, int *) __latent_entropy;
+ void do_close_on_exec(struct files_struct *);
+ int iterate_fd(struct files_struct *, unsigned,
+ 		int (*)(const void *, struct file *, unsigned),
+diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
+index 8293262..2b3b8bd 100644
+--- a/include/linux/frontswap.h
++++ b/include/linux/frontswap.h
+@@ -11,7 +11,7 @@ struct frontswap_ops {
+ 	int (*load)(unsigned, pgoff_t, struct page *);
+ 	void (*invalidate_page)(unsigned, pgoff_t);
+ 	void (*invalidate_area)(unsigned);
+-};
++} __no_const;
+ 
+ extern bool frontswap_enabled;
+ extern struct frontswap_ops *
+diff --git a/include/linux/fs.h b/include/linux/fs.h
+index 23b2a35..8764ab7 100644
+--- a/include/linux/fs.h
++++ b/include/linux/fs.h
+@@ -426,7 +426,7 @@ struct address_space {
+ 	spinlock_t		private_lock;	/* for use by the address_space */
+ 	struct list_head	private_list;	/* ditto */
+ 	void			*private_data;	/* ditto */
+-} __attribute__((aligned(sizeof(long))));
++} __attribute__((aligned(sizeof(long)))) __randomize_layout;
+ 	/*
+ 	 * On most architectures that alignment is already the case; but
+ 	 * must be enforced here for CRIS, to let the least significant bit
+@@ -469,7 +469,7 @@ struct block_device {
+ 	int			bd_fsfreeze_count;
+ 	/* Mutex for freeze */
+ 	struct mutex		bd_fsfreeze_mutex;
+-};
++} __randomize_layout;
+ 
+ /*
+  * Radix-tree tags, for tagging dirty and writeback pages within the pagecache
+@@ -613,7 +613,7 @@ struct inode {
+ 	atomic_t		i_readcount; /* struct files open RO */
+ #endif
+ 	void			*i_private; /* fs or device private pointer */
+-};
++} __randomize_layout;
+ 
+ static inline int inode_unhashed(struct inode *inode)
+ {
+@@ -812,7 +812,7 @@ struct file {
+ #ifdef CONFIG_DEBUG_WRITECOUNT
+ 	unsigned long f_mnt_write_state;
+ #endif
+-} __attribute__((aligned(4)));	/* lest something weird decides that 2 is OK */
++} __attribute__((aligned(4))) __randomize_layout;	/* lest something weird decides that 2 is OK */
+ 
+ struct file_handle {
+ 	__u32 handle_bytes;
+@@ -982,7 +982,7 @@ struct file_lock {
+ 			int state;		/* state of grant or error if -ve */
+ 		} afs;
+ 	} fl_u;
+-};
++} __randomize_layout;
+ 
+ /* The following constant reflects the upper bound of the file/locking space */
+ #ifndef OFFSET_MAX
+@@ -1329,7 +1329,7 @@ struct super_block {
+ 	struct list_lru		s_dentry_lru ____cacheline_aligned_in_smp;
+ 	struct list_lru		s_inode_lru ____cacheline_aligned_in_smp;
+ 	struct rcu_head		rcu;
+-};
++} __randomize_layout;
+ 
+ extern struct timespec current_fs_time(struct super_block *sb);
+ 
+@@ -1551,7 +1551,8 @@ struct file_operations {
+ 	long (*fallocate)(struct file *file, int mode, loff_t offset,
+ 			  loff_t len);
+ 	int (*show_fdinfo)(struct seq_file *m, struct file *f);
+-};
++} __do_const __randomize_layout;
++typedef struct file_operations __no_const file_operations_no_const;
+ 
+ struct inode_operations {
+ 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
+@@ -2820,4 +2821,14 @@ static inline bool dir_relax(struct inode *inode)
+ 	return !IS_DEADDIR(inode);
+ }
+ 
++static inline bool is_sidechannel_device(const struct inode *inode)
++{
++#ifdef CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL
++	umode_t mode = inode->i_mode;
++	return ((S_ISCHR(mode) || S_ISBLK(mode)) && (mode & (S_IROTH | S_IWOTH)));
++#else
++	return false;
++#endif
++}
++
+ #endif /* _LINUX_FS_H */
+diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
+index 0efc3e6..fd23610 100644
+--- a/include/linux/fs_struct.h
++++ b/include/linux/fs_struct.h
+@@ -6,13 +6,13 @@
+ #include <linux/seqlock.h>
+ 
+ struct fs_struct {
+-	int users;
++	atomic_t users;
+ 	spinlock_t lock;
+ 	seqcount_t seq;
+ 	int umask;
+ 	int in_exec;
+ 	struct path root, pwd;
+-};
++} __randomize_layout;
+ 
+ extern struct kmem_cache *fs_cachep;
+ 
+diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
+index 7714849..a4a5c7a 100644
+--- a/include/linux/fscache-cache.h
++++ b/include/linux/fscache-cache.h
+@@ -113,7 +113,7 @@ struct fscache_operation {
+ 	fscache_operation_release_t release;
+ };
+ 
+-extern atomic_t fscache_op_debug_id;
++extern atomic_unchecked_t fscache_op_debug_id;
+ extern void fscache_op_work_func(struct work_struct *work);
+ 
+ extern void fscache_enqueue_operation(struct fscache_operation *);
+@@ -135,7 +135,7 @@ static inline void fscache_operation_init(struct fscache_operation *op,
+ 	INIT_WORK(&op->work, fscache_op_work_func);
+ 	atomic_set(&op->usage, 1);
+ 	op->state = FSCACHE_OP_ST_INITIALISED;
+-	op->debug_id = atomic_inc_return(&fscache_op_debug_id);
++	op->debug_id = atomic_inc_return_unchecked(&fscache_op_debug_id);
+ 	op->processor = processor;
+ 	op->release = release;
+ 	INIT_LIST_HEAD(&op->pend_link);
+diff --git a/include/linux/fscache.h b/include/linux/fscache.h
+index 115bb81..e7b812b 100644
+--- a/include/linux/fscache.h
++++ b/include/linux/fscache.h
+@@ -152,7 +152,7 @@ struct fscache_cookie_def {
+ 	 * - this is mandatory for any object that may have data
+ 	 */
+ 	void (*now_uncached)(void *cookie_netfs_data);
+-};
++} __do_const;
+ 
+ /*
+  * fscache cached network filesystem type
+diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
+index 7ee1774..72505b8 100644
+--- a/include/linux/fsnotify.h
++++ b/include/linux/fsnotify.h
+@@ -197,6 +197,9 @@ static inline void fsnotify_access(struct file *file)
+ 	struct inode *inode = file_inode(file);
+ 	__u32 mask = FS_ACCESS;
+ 
++	if (is_sidechannel_device(inode))
++		return;
++
+ 	if (S_ISDIR(inode->i_mode))
+ 		mask |= FS_ISDIR;
+ 
+@@ -215,6 +218,9 @@ static inline void fsnotify_modify(struct file *file)
+ 	struct inode *inode = file_inode(file);
+ 	__u32 mask = FS_MODIFY;
+ 
++	if (is_sidechannel_device(inode))
++		return;
++
+ 	if (S_ISDIR(inode->i_mode))
+ 		mask |= FS_ISDIR;
+ 
+@@ -317,7 +323,7 @@ static inline void fsnotify_change(struct dentry *dentry, unsigned int ia_valid)
+  */
+ static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
+ {
+-	return kstrdup(name, GFP_KERNEL);
++	return (const unsigned char *)kstrdup((const char *)name, GFP_KERNEL);
+ }
+ 
+ /*
+diff --git a/include/linux/genhd.h b/include/linux/genhd.h
+index 9f3c275..8bdff5d 100644
+--- a/include/linux/genhd.h
++++ b/include/linux/genhd.h
+@@ -194,7 +194,7 @@ struct gendisk {
+ 	struct kobject *slave_dir;
+ 
+ 	struct timer_rand_state *random;
+-	atomic_t sync_io;		/* RAID */
++	atomic_unchecked_t sync_io;	/* RAID */
+ 	struct disk_events *ev;
+ #ifdef  CONFIG_BLK_DEV_INTEGRITY
+ 	struct blk_integrity *integrity;
+@@ -435,7 +435,7 @@ extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
+ extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
+ 
+ /* drivers/char/random.c */
+-extern void add_disk_randomness(struct gendisk *disk);
++extern void add_disk_randomness(struct gendisk *disk) __latent_entropy;
+ extern void rand_initialize_disk(struct gendisk *disk);
+ 
+ static inline sector_t get_start_sect(struct block_device *bdev)
+diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
+index c0894dd..2fbf10c 100644
+--- a/include/linux/genl_magic_func.h
++++ b/include/linux/genl_magic_func.h
+@@ -246,7 +246,7 @@ const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd)
+ },
+ 
+ #define ZZZ_genl_ops		CONCAT_(GENL_MAGIC_FAMILY, _genl_ops)
+-static struct genl_ops ZZZ_genl_ops[] __read_mostly = {
++static struct genl_ops ZZZ_genl_ops[] = {
+ #include GENL_MAGIC_INCLUDE_FILE
+ };
+ 
+diff --git a/include/linux/gfp.h b/include/linux/gfp.h
+index 3824ac6..f3932a3 100644
+--- a/include/linux/gfp.h
++++ b/include/linux/gfp.h
+@@ -36,6 +36,13 @@ struct vm_area_struct;
+ #define ___GFP_NO_KSWAPD	0x400000u
+ #define ___GFP_OTHER_NODE	0x800000u
+ #define ___GFP_WRITE		0x1000000u
++
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++#define ___GFP_USERCOPY		0x2000000u
++#else
++#define ___GFP_USERCOPY		0
++#endif
++
+ /* If the above are modified, __GFP_BITS_SHIFT may need updating */
+ 
+ /*
+@@ -93,6 +100,7 @@ struct vm_area_struct;
+ #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
+ #define __GFP_KMEMCG	((__force gfp_t)___GFP_KMEMCG) /* Allocation comes from a memcg-accounted resource */
+ #define __GFP_WRITE	((__force gfp_t)___GFP_WRITE)	/* Allocator intends to dirty page */
++#define __GFP_USERCOPY	((__force gfp_t)___GFP_USERCOPY)/* Allocator intends to copy page to/from userland */
+ 
+ /*
+  * This may seem redundant, but it's a way of annotating false positives vs.
+@@ -100,7 +108,7 @@ struct vm_area_struct;
+  */
+ #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
+ 
+-#define __GFP_BITS_SHIFT 25	/* Room for N __GFP_FOO bits */
++#define __GFP_BITS_SHIFT 26	/* Room for N __GFP_FOO bits */
+ #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
+ 
+ /* This equals 0, but use constants in case they ever change */
+@@ -158,6 +166,8 @@ struct vm_area_struct;
+ /* 4GB DMA on some platforms */
+ #define GFP_DMA32	__GFP_DMA32
+ 
++#define GFP_USERCOPY	__GFP_USERCOPY
++
+ /* Convert GFP flags to their corresponding migrate type */
+ static inline int allocflags_to_migratetype(gfp_t gfp_flags)
+ {
+diff --git a/include/linux/gracl.h b/include/linux/gracl.h
+new file mode 100644
+index 0000000..91858e4
+--- /dev/null
++++ b/include/linux/gracl.h
+@@ -0,0 +1,342 @@
++#ifndef GR_ACL_H
++#define GR_ACL_H
++
++#include <linux/grdefs.h>
++#include <linux/resource.h>
++#include <linux/capability.h>
++#include <linux/dcache.h>
++#include <asm/resource.h>
++
++/* Major status information */
++
++#define GR_VERSION  "grsecurity 3.1"
++#define GRSECURITY_VERSION 0x3100
++
++enum {
++	GR_SHUTDOWN = 0,
++	GR_ENABLE = 1,
++	GR_SPROLE = 2,
++	GR_OLDRELOAD = 3,
++	GR_SEGVMOD = 4,
++	GR_STATUS = 5,
++	GR_UNSPROLE = 6,
++	GR_PASSSET = 7,
++	GR_SPROLEPAM = 8,
++	GR_RELOAD = 9,
++};
++
++/* Password setup definitions
++ * kernel/grhash.c */
++enum {
++	GR_PW_LEN = 128,
++	GR_SALT_LEN = 16,
++	GR_SHA_LEN = 32,
++};
++
++enum {
++	GR_SPROLE_LEN = 64,
++};
++
++enum {
++	GR_NO_GLOB = 0,
++	GR_REG_GLOB,
++	GR_CREATE_GLOB
++};
++
++#define GR_NLIMITS 32
++
++/* Begin Data Structures */
++
++struct sprole_pw {
++	unsigned char *rolename;
++	unsigned char salt[GR_SALT_LEN];
++	unsigned char sum[GR_SHA_LEN];	/* 256-bit SHA hash of the password */
++};
++
++struct name_entry {
++	__u32 key;
++	u64 inode;
++	dev_t device;
++	char *name;
++	__u16 len;
++	__u8 deleted;
++	struct name_entry *prev;
++	struct name_entry *next;
++};
++
++struct inodev_entry {
++	struct name_entry *nentry;
++	struct inodev_entry *prev;
++	struct inodev_entry *next;
++};
++
++struct acl_role_db {
++	struct acl_role_label **r_hash;
++	__u32 r_size;
++};
++
++struct inodev_db {
++	struct inodev_entry **i_hash;
++	__u32 i_size;
++};
++
++struct name_db {
++	struct name_entry **n_hash;
++	__u32 n_size;
++};
++
++struct crash_uid {
++	uid_t uid;
++	unsigned long expires;
++};
++
++struct gr_hash_struct {
++	void **table;
++	void **nametable;
++	void *first;
++	__u32 table_size;
++	__u32 used_size;
++	int type;
++};
++
++/* Userspace Grsecurity ACL data structures */
++
++struct acl_subject_label {
++	char *filename;
++	u64 inode;
++	dev_t device;
++	__u32 mode;
++	kernel_cap_t cap_mask;
++	kernel_cap_t cap_lower;
++	kernel_cap_t cap_invert_audit;
++
++	struct rlimit res[GR_NLIMITS];
++	__u32 resmask;
++
++	__u8 user_trans_type;
++	__u8 group_trans_type;
++	uid_t *user_transitions;
++	gid_t *group_transitions;
++	__u16 user_trans_num;
++	__u16 group_trans_num;
++
++	__u32 sock_families[2];
++	__u32 ip_proto[8];
++	__u32 ip_type;
++	struct acl_ip_label **ips;
++	__u32 ip_num;
++	__u32 inaddr_any_override;
++
++	__u32 crashes;
++	unsigned long expires;
++
++	struct acl_subject_label *parent_subject;
++	struct gr_hash_struct *hash;
++	struct acl_subject_label *prev;
++	struct acl_subject_label *next;
++
++	struct acl_object_label **obj_hash;
++	__u32 obj_hash_size;
++	__u16 pax_flags;
++};
++
++struct role_allowed_ip {
++	__u32 addr;
++	__u32 netmask;
++
++	struct role_allowed_ip *prev;
++	struct role_allowed_ip *next;
++};
++
++struct role_transition {
++	char *rolename;
++
++	struct role_transition *prev;
++	struct role_transition *next;
++};
++
++struct acl_role_label {
++	char *rolename;
++	uid_t uidgid;
++	__u16 roletype;
++
++	__u16 auth_attempts;
++	unsigned long expires;
++
++	struct acl_subject_label *root_label;
++	struct gr_hash_struct *hash;
++
++	struct acl_role_label *prev;
++	struct acl_role_label *next;
++
++	struct role_transition *transitions;
++	struct role_allowed_ip *allowed_ips;
++	uid_t *domain_children;
++	__u16 domain_child_num;
++
++	umode_t umask;
++
++	struct acl_subject_label **subj_hash;
++	__u32 subj_hash_size;
++};
++
++struct user_acl_role_db {
++	struct acl_role_label **r_table;
++	__u32 num_pointers;		/* Number of allocations to track */
++	__u32 num_roles;		/* Number of roles */
++	__u32 num_domain_children;	/* Number of domain children */
++	__u32 num_subjects;		/* Number of subjects */
++	__u32 num_objects;		/* Number of objects */
++};
++
++struct acl_object_label {
++	char *filename;
++	u64 inode;
++	dev_t device;
++	__u32 mode;
++
++	struct acl_subject_label *nested;
++	struct acl_object_label *globbed;
++
++	/* next two structures not used */
++
++	struct acl_object_label *prev;
++	struct acl_object_label *next;
++};
++
++struct acl_ip_label {
++	char *iface;
++	__u32 addr;
++	__u32 netmask;
++	__u16 low, high;
++	__u8 mode;
++	__u32 type;
++	__u32 proto[8];
++
++	/* next two structures not used */
++
++	struct acl_ip_label *prev;
++	struct acl_ip_label *next;
++};
++
++struct gr_arg {
++	struct user_acl_role_db role_db;
++	unsigned char pw[GR_PW_LEN];
++	unsigned char salt[GR_SALT_LEN];
++	unsigned char sum[GR_SHA_LEN];
++	unsigned char sp_role[GR_SPROLE_LEN];
++	struct sprole_pw *sprole_pws;
++	dev_t segv_device;
++	u64 segv_inode;
++	uid_t segv_uid;
++	__u16 num_sprole_pws;
++	__u16 mode;
++};
++
++struct gr_arg_wrapper {
++	struct gr_arg *arg;
++	__u32 version;
++	__u32 size;
++};
++
++struct subject_map {
++	struct acl_subject_label *user;
++	struct acl_subject_label *kernel;
++	struct subject_map *prev;
++	struct subject_map *next;
++};
++
++struct acl_subj_map_db {
++	struct subject_map **s_hash;
++	__u32 s_size;
++};
++
++struct gr_policy_state {
++	struct sprole_pw **acl_special_roles;
++	__u16 num_sprole_pws;
++	struct acl_role_label *kernel_role;
++	struct acl_role_label *role_list;
++	struct acl_role_label *default_role;
++	struct acl_role_db acl_role_set;
++	struct acl_subj_map_db subj_map_set;
++	struct name_db name_set;
++	struct inodev_db inodev_set;
++};
++
++struct gr_alloc_state {
++	unsigned long alloc_stack_next;
++	unsigned long alloc_stack_size;
++	void **alloc_stack;
++};
++
++struct gr_reload_state {
++	struct gr_policy_state oldpolicy;
++	struct gr_alloc_state oldalloc;
++	struct gr_policy_state newpolicy;
++	struct gr_alloc_state newalloc;
++	struct gr_policy_state *oldpolicy_ptr;
++	struct gr_alloc_state *oldalloc_ptr;
++	unsigned char oldmode;
++};
++
++/* End Data Structures Section */
++
++/* Hash functions generated by empirical testing by Brad Spengler
++   Makes good use of the low bits of the inode.  Generally 0-1 times
++   in loop for successful match.  0-3 for unsuccessful match.
++   Shift/add algorithm with modulus of table size and an XOR*/
++
++static __inline__ unsigned int
++gr_rhash(const uid_t uid, const __u16 type, const unsigned int sz)
++{
++	return ((((uid + type) << (16 + type)) ^ uid) % sz);
++}
++
++ static __inline__ unsigned int
++gr_shash(const struct acl_subject_label *userp, const unsigned int sz)
++{
++	return ((const unsigned long)userp % sz);
++}
++
++static __inline__ unsigned int
++gr_fhash(const u64 ino, const dev_t dev, const unsigned int sz)
++{
++	unsigned int rem;
++	div_u64_rem((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9)), sz, &rem);
++	return rem;
++}
++
++static __inline__ unsigned int
++gr_nhash(const char *name, const __u16 len, const unsigned int sz)
++{
++	return full_name_hash((const unsigned char *)name, len) % sz;
++}
++
++#define FOR_EACH_SUBJECT_START(role,subj,iter) \
++	subj = NULL; \
++	iter = 0; \
++	while (iter < role->subj_hash_size) { \
++		if (subj == NULL) \
++			subj = role->subj_hash[iter]; \
++		if (subj == NULL) { \
++			iter++; \
++			continue; \
++		}
++
++#define FOR_EACH_SUBJECT_END(subj,iter) \
++		subj = subj->next; \
++		if (subj == NULL) \
++			iter++; \
++	}
++
++
++#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \
++	subj = role->hash->first; \
++	while (subj != NULL) {
++
++#define FOR_EACH_NESTED_SUBJECT_END(subj) \
++		subj = subj->next; \
++	}
++
++#endif
++
+diff --git a/include/linux/gracl_compat.h b/include/linux/gracl_compat.h
+new file mode 100644
+index 0000000..af64092
+--- /dev/null
++++ b/include/linux/gracl_compat.h
+@@ -0,0 +1,156 @@
++#ifndef GR_ACL_COMPAT_H
++#define GR_ACL_COMPAT_H
++
++#include <linux/resource.h>
++#include <asm/resource.h>
++
++struct sprole_pw_compat {
++	compat_uptr_t rolename;
++	unsigned char salt[GR_SALT_LEN];
++	unsigned char sum[GR_SHA_LEN];
++};
++
++struct gr_hash_struct_compat {
++	compat_uptr_t table;
++	compat_uptr_t nametable;
++	compat_uptr_t first;
++	__u32 table_size;
++	__u32 used_size;
++	int type;
++};
++
++struct acl_subject_label_compat {
++	compat_uptr_t filename;
++	compat_u64 inode;
++	__u32 device;
++	__u32 mode;
++	kernel_cap_t cap_mask;
++	kernel_cap_t cap_lower;
++	kernel_cap_t cap_invert_audit;
++
++	struct compat_rlimit res[GR_NLIMITS];
++	__u32 resmask;
++
++	__u8 user_trans_type;
++	__u8 group_trans_type;
++	compat_uptr_t user_transitions;
++	compat_uptr_t group_transitions;
++	__u16 user_trans_num;
++	__u16 group_trans_num;
++
++	__u32 sock_families[2];
++	__u32 ip_proto[8];
++	__u32 ip_type;
++	compat_uptr_t ips;
++	__u32 ip_num;
++	__u32 inaddr_any_override;
++
++	__u32 crashes;
++	compat_ulong_t expires;
++
++	compat_uptr_t parent_subject;
++	compat_uptr_t hash;
++	compat_uptr_t prev;
++	compat_uptr_t next;
++
++	compat_uptr_t obj_hash;
++	__u32 obj_hash_size;
++	__u16 pax_flags;
++};
++
++struct role_allowed_ip_compat {
++	__u32 addr;
++	__u32 netmask;
++
++	compat_uptr_t prev;
++	compat_uptr_t next;
++};
++
++struct role_transition_compat {
++	compat_uptr_t rolename;
++
++	compat_uptr_t prev;
++	compat_uptr_t next;
++};
++
++struct acl_role_label_compat {
++	compat_uptr_t rolename;
++	uid_t uidgid;
++	__u16 roletype;
++
++	__u16 auth_attempts;
++	compat_ulong_t expires;
++
++	compat_uptr_t root_label;
++	compat_uptr_t hash;
++
++	compat_uptr_t prev;
++	compat_uptr_t next;
++
++	compat_uptr_t transitions;
++	compat_uptr_t allowed_ips;
++	compat_uptr_t domain_children;
++	__u16 domain_child_num;
++
++	umode_t umask;
++
++	compat_uptr_t subj_hash;
++	__u32 subj_hash_size;
++};
++
++struct user_acl_role_db_compat {
++	compat_uptr_t r_table;
++	__u32 num_pointers;
++	__u32 num_roles;
++	__u32 num_domain_children;
++	__u32 num_subjects;
++	__u32 num_objects;
++};
++
++struct acl_object_label_compat {
++	compat_uptr_t filename;
++	compat_u64 inode;
++	__u32 device;
++	__u32 mode;
++
++	compat_uptr_t nested;
++	compat_uptr_t globbed;
++
++	compat_uptr_t prev;
++	compat_uptr_t next;
++};
++
++struct acl_ip_label_compat {
++	compat_uptr_t iface;
++	__u32 addr;
++	__u32 netmask;
++	__u16 low, high;
++	__u8 mode;
++	__u32 type;
++	__u32 proto[8];
++
++	compat_uptr_t prev;
++	compat_uptr_t next;
++};
++
++struct gr_arg_compat {
++	struct user_acl_role_db_compat role_db;
++	unsigned char pw[GR_PW_LEN];
++	unsigned char salt[GR_SALT_LEN];
++	unsigned char sum[GR_SHA_LEN];
++	unsigned char sp_role[GR_SPROLE_LEN];
++	compat_uptr_t sprole_pws;
++	__u32 segv_device;
++	compat_u64 segv_inode;
++	uid_t segv_uid;
++	__u16 num_sprole_pws;
++	__u16 mode;
++};
++
++struct gr_arg_wrapper_compat {
++	compat_uptr_t arg;
++	__u32 version;
++	__u32 size;
++};
++
++#endif
+diff --git a/include/linux/gralloc.h b/include/linux/gralloc.h
+new file mode 100644
+index 0000000..323ecf2
+--- /dev/null
++++ b/include/linux/gralloc.h
+@@ -0,0 +1,9 @@
++#ifndef __GRALLOC_H
++#define __GRALLOC_H
++
++void acl_free_all(void);
++int acl_alloc_stack_init(unsigned long size);
++void *acl_alloc(unsigned long len);
++void *acl_alloc_num(unsigned long num, unsigned long len);
++
++#endif
+diff --git a/include/linux/grdefs.h b/include/linux/grdefs.h
+new file mode 100644
+index 0000000..be66033
+--- /dev/null
++++ b/include/linux/grdefs.h
+@@ -0,0 +1,140 @@
++#ifndef GRDEFS_H
++#define GRDEFS_H
++
++/* Begin grsecurity status declarations */
++
++enum {
++	GR_READY = 0x01,
++	GR_STATUS_INIT = 0x00	// disabled state
++};
++
++/* Begin  ACL declarations */
++
++/* Role flags */
++
++enum {
++	GR_ROLE_USER = 0x0001,
++	GR_ROLE_GROUP = 0x0002,
++	GR_ROLE_DEFAULT = 0x0004,
++	GR_ROLE_SPECIAL = 0x0008,
++	GR_ROLE_AUTH = 0x0010,
++	GR_ROLE_NOPW = 0x0020,
++	GR_ROLE_GOD = 0x0040,
++	GR_ROLE_LEARN = 0x0080,
++	GR_ROLE_TPE = 0x0100,
++	GR_ROLE_DOMAIN = 0x0200,
++	GR_ROLE_PAM = 0x0400,
++	GR_ROLE_PERSIST = 0x0800
++};
++
++/* ACL Subject and Object mode flags */
++enum {
++	GR_DELETED = 0x80000000
++};
++
++/* ACL Object-only mode flags */
++enum {
++	GR_READ 	= 0x00000001,
++	GR_APPEND 	= 0x00000002,
++	GR_WRITE 	= 0x00000004,
++	GR_EXEC 	= 0x00000008,
++	GR_FIND 	= 0x00000010,
++	GR_INHERIT 	= 0x00000020,
++	GR_SETID 	= 0x00000040,
++	GR_CREATE 	= 0x00000080,
++	GR_DELETE 	= 0x00000100,
++	GR_LINK		= 0x00000200,
++	GR_AUDIT_READ 	= 0x00000400,
++	GR_AUDIT_APPEND = 0x00000800,
++	GR_AUDIT_WRITE 	= 0x00001000,
++	GR_AUDIT_EXEC 	= 0x00002000,
++	GR_AUDIT_FIND 	= 0x00004000,
++	GR_AUDIT_INHERIT= 0x00008000,
++	GR_AUDIT_SETID 	= 0x00010000,
++	GR_AUDIT_CREATE = 0x00020000,
++	GR_AUDIT_DELETE = 0x00040000,
++	GR_AUDIT_LINK	= 0x00080000,
++	GR_PTRACERD 	= 0x00100000,
++	GR_NOPTRACE	= 0x00200000,
++	GR_SUPPRESS 	= 0x00400000,
++	GR_NOLEARN 	= 0x00800000,
++	GR_INIT_TRANSFER= 0x01000000
++};
++
++#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \
++		   GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \
++		   GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK)
++
++/* ACL subject-only mode flags */
++enum {
++	GR_KILL 	= 0x00000001,
++	GR_VIEW 	= 0x00000002,
++	GR_PROTECTED 	= 0x00000004,
++	GR_LEARN 	= 0x00000008,
++	GR_OVERRIDE 	= 0x00000010,
++	/* just a placeholder, this mode is only used in userspace */
++	GR_DUMMY 	= 0x00000020,
++	GR_PROTSHM	= 0x00000040,
++	GR_KILLPROC	= 0x00000080,
++	GR_KILLIPPROC	= 0x00000100,
++	/* just a placeholder, this mode is only used in userspace */
++	GR_NOTROJAN	= 0x00000200,
++	GR_PROTPROCFD	= 0x00000400,
++	GR_PROCACCT	= 0x00000800,
++	GR_RELAXPTRACE	= 0x00001000,
++	//GR_NESTED	= 0x00002000,
++	GR_INHERITLEARN	= 0x00004000,
++	GR_PROCFIND	= 0x00008000,
++	GR_POVERRIDE	= 0x00010000,
++	GR_KERNELAUTH	= 0x00020000,
++	GR_ATSECURE	= 0x00040000,
++	GR_SHMEXEC	= 0x00080000
++};
++
++enum {
++	GR_PAX_ENABLE_SEGMEXEC	= 0x0001,
++	GR_PAX_ENABLE_PAGEEXEC	= 0x0002,
++	GR_PAX_ENABLE_MPROTECT	= 0x0004,
++	GR_PAX_ENABLE_RANDMMAP	= 0x0008,
++	GR_PAX_ENABLE_EMUTRAMP	= 0x0010,
++	GR_PAX_DISABLE_SEGMEXEC	= 0x0100,
++	GR_PAX_DISABLE_PAGEEXEC	= 0x0200,
++	GR_PAX_DISABLE_MPROTECT	= 0x0400,
++	GR_PAX_DISABLE_RANDMMAP	= 0x0800,
++	GR_PAX_DISABLE_EMUTRAMP	= 0x1000,
++};
++
++enum {
++	GR_ID_USER	= 0x01,
++	GR_ID_GROUP	= 0x02,
++};
++
++enum {
++	GR_ID_ALLOW	= 0x01,
++	GR_ID_DENY	= 0x02,
++};
++
++#define GR_CRASH_RES	31
++#define GR_UIDTABLE_MAX 500
++
++/* begin resource learning section */
++enum {
++	GR_RLIM_CPU_BUMP = 60,
++	GR_RLIM_FSIZE_BUMP = 50000,
++	GR_RLIM_DATA_BUMP = 10000,
++	GR_RLIM_STACK_BUMP = 1000,
++	GR_RLIM_CORE_BUMP = 10000,
++	GR_RLIM_RSS_BUMP = 500000,
++	GR_RLIM_NPROC_BUMP = 1,
++	GR_RLIM_NOFILE_BUMP = 5,
++	GR_RLIM_MEMLOCK_BUMP = 50000,
++	GR_RLIM_AS_BUMP = 500000,
++	GR_RLIM_LOCKS_BUMP = 2,
++	GR_RLIM_SIGPENDING_BUMP = 5,
++	GR_RLIM_MSGQUEUE_BUMP = 10000,
++	GR_RLIM_NICE_BUMP = 1,
++	GR_RLIM_RTPRIO_BUMP = 1,
++	GR_RLIM_RTTIME_BUMP = 1000000
++};
++
++#endif
+diff --git a/include/linux/grinternal.h b/include/linux/grinternal.h
+new file mode 100644
+index 0000000..fb1de5d
+--- /dev/null
++++ b/include/linux/grinternal.h
+@@ -0,0 +1,230 @@
++#ifndef __GRINTERNAL_H
++#define __GRINTERNAL_H
++
++#ifdef CONFIG_GRKERNSEC
++
++#include <linux/fs.h>
++#include <linux/mnt_namespace.h>
++#include <linux/nsproxy.h>
++#include <linux/gracl.h>
++#include <linux/grdefs.h>
++#include <linux/grmsg.h>
++
++void gr_add_learn_entry(const char *fmt, ...)
++	__attribute__ ((format (printf, 1, 2)));
++__u32 gr_search_file(const struct dentry *dentry, const __u32 mode,
++			    const struct vfsmount *mnt);
++__u32 gr_check_create(const struct dentry *new_dentry,
++			     const struct dentry *parent,
++			     const struct vfsmount *mnt, const __u32 mode);
++int gr_check_protected_task(const struct task_struct *task);
++__u32 to_gr_audit(const __u32 reqmode);
++int gr_set_acls(const int type);
++int gr_acl_is_enabled(void);
++char gr_roletype_to_char(void);
++
++void gr_handle_alertkill(struct task_struct *task);
++char *gr_to_filename(const struct dentry *dentry,
++			    const struct vfsmount *mnt);
++char *gr_to_filename1(const struct dentry *dentry,
++			    const struct vfsmount *mnt);
++char *gr_to_filename2(const struct dentry *dentry,
++			    const struct vfsmount *mnt);
++char *gr_to_filename3(const struct dentry *dentry,
++			    const struct vfsmount *mnt);
++
++extern int grsec_enable_ptrace_readexec;
++extern int grsec_enable_harden_ptrace;
++extern int grsec_enable_link;
++extern int grsec_enable_fifo;
++extern int grsec_enable_execve;
++extern int grsec_enable_shm;
++extern int grsec_enable_execlog;
++extern int grsec_enable_signal;
++extern int grsec_enable_audit_ptrace;
++extern int grsec_enable_forkfail;
++extern int grsec_enable_time;
++extern int grsec_enable_rofs;
++extern int grsec_deny_new_usb;
++extern int grsec_enable_chroot_shmat;
++extern int grsec_enable_chroot_mount;
++extern int grsec_enable_chroot_double;
++extern int grsec_enable_chroot_pivot;
++extern int grsec_enable_chroot_chdir;
++extern int grsec_enable_chroot_chmod;
++extern int grsec_enable_chroot_mknod;
++extern int grsec_enable_chroot_fchdir;
++extern int grsec_enable_chroot_nice;
++extern int grsec_enable_chroot_execlog;
++extern int grsec_enable_chroot_caps;
++extern int grsec_enable_chroot_rename;
++extern int grsec_enable_chroot_sysctl;
++extern int grsec_enable_chroot_unix;
++extern int grsec_enable_symlinkown;
++extern kgid_t grsec_symlinkown_gid;
++extern int grsec_enable_tpe;
++extern kgid_t grsec_tpe_gid;
++extern int grsec_enable_tpe_all;
++extern int grsec_enable_tpe_invert;
++extern int grsec_enable_socket_all;
++extern kgid_t grsec_socket_all_gid;
++extern int grsec_enable_socket_client;
++extern kgid_t grsec_socket_client_gid;
++extern int grsec_enable_socket_server;
++extern kgid_t grsec_socket_server_gid;
++extern kgid_t grsec_audit_gid;
++extern int grsec_enable_group;
++extern int grsec_enable_log_rwxmaps;
++extern int grsec_enable_mount;
++extern int grsec_enable_chdir;
++extern int grsec_resource_logging;
++extern int grsec_enable_blackhole;
++extern int grsec_lastack_retries;
++extern int grsec_enable_brute;
++extern int grsec_enable_harden_ipc;
++extern int grsec_lock;
++
++extern spinlock_t grsec_alert_lock;
++extern unsigned long grsec_alert_wtime;
++extern unsigned long grsec_alert_fyet;
++
++extern spinlock_t grsec_audit_lock;
++
++extern rwlock_t grsec_exec_file_lock;
++
++#define gr_task_fullpath(tsk) ((tsk)->exec_file ? \
++			gr_to_filename2((tsk)->exec_file->f_path.dentry, \
++			(tsk)->exec_file->f_path.mnt) : "/")
++
++#define gr_parent_task_fullpath(tsk) ((tsk)->real_parent->exec_file ? \
++			gr_to_filename3((tsk)->real_parent->exec_file->f_path.dentry, \
++			(tsk)->real_parent->exec_file->f_path.mnt) : "/")
++
++#define gr_task_fullpath0(tsk) ((tsk)->exec_file ? \
++			gr_to_filename((tsk)->exec_file->f_path.dentry, \
++			(tsk)->exec_file->f_path.mnt) : "/")
++
++#define gr_parent_task_fullpath0(tsk) ((tsk)->real_parent->exec_file ? \
++			gr_to_filename1((tsk)->real_parent->exec_file->f_path.dentry, \
++			(tsk)->real_parent->exec_file->f_path.mnt) : "/")
++
++#define proc_is_chrooted(tsk_a)  ((tsk_a)->gr_is_chrooted)
++
++#define have_same_root(tsk_a,tsk_b) ((tsk_a)->gr_chroot_dentry == (tsk_b)->gr_chroot_dentry)
++
++static inline bool gr_is_same_file(const struct file *file1, const struct file *file2)
++{
++	if (file1 && file2) {
++		const struct inode *inode1 = file1->f_path.dentry->d_inode;
++		const struct inode *inode2 = file2->f_path.dentry->d_inode;
++		if (inode1->i_ino == inode2->i_ino && inode1->i_sb->s_dev == inode2->i_sb->s_dev)
++			return true;
++	}
++
++	return false;
++}
++
++#define GR_CHROOT_CAPS {{ \
++	CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \
++	CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \
++	CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \
++	CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \
++	CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \
++	CAP_TO_MASK(CAP_IPC_OWNER) | CAP_TO_MASK(CAP_SETFCAP), \
++	CAP_TO_MASK(CAP_SYSLOG) | CAP_TO_MASK(CAP_MAC_ADMIN) }}
++
++#define security_learn(normal_msg,args...) \
++({ \
++	read_lock(&grsec_exec_file_lock); \
++	gr_add_learn_entry(normal_msg "\n", ## args); \
++	read_unlock(&grsec_exec_file_lock); \
++})
++
++enum {
++	GR_DO_AUDIT,
++	GR_DONT_AUDIT,
++	/* used for non-audit messages that we shouldn't kill the task on */
++	GR_DONT_AUDIT_GOOD
++};
++
++enum {
++	GR_TTYSNIFF,
++	GR_RBAC,
++	GR_RBAC_STR,
++	GR_STR_RBAC,
++	GR_RBAC_MODE2,
++	GR_RBAC_MODE3,
++	GR_FILENAME,
++	GR_SYSCTL_HIDDEN,
++	GR_NOARGS,
++	GR_ONE_INT,
++	GR_ONE_INT_TWO_STR,
++	GR_ONE_STR,
++	GR_STR_INT,
++	GR_TWO_STR_INT,
++	GR_TWO_INT,
++	GR_TWO_U64,
++	GR_THREE_INT,
++	GR_FIVE_INT_TWO_STR,
++	GR_TWO_STR,
++	GR_THREE_STR,
++	GR_FOUR_STR,
++	GR_STR_FILENAME,
++	GR_FILENAME_STR,
++	GR_FILENAME_TWO_INT,
++	GR_FILENAME_TWO_INT_STR,
++	GR_TEXTREL,
++	GR_PTRACE,
++	GR_RESOURCE,
++	GR_CAP,
++	GR_SIG,
++	GR_SIG2,
++	GR_CRASH1,
++	GR_CRASH2,
++	GR_PSACCT,
++	GR_RWXMAP,
++	GR_RWXMAPVMA
++};
++
++#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str)
++#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task)
++#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt)
++#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str)
++#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt)
++#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2)
++#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3)
++#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt)
++#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS)
++#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num)
++#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2)
++#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str)
++#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num)
++#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2)
++#define gr_log_two_u64(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_U64, num1, num2)
++#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3)
++#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2)
++#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2)
++#define gr_log_str2_int(audit, msg, str1, str2, num) gr_log_varargs(audit, msg, GR_TWO_STR_INT, str1, str2, num)
++#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3)
++#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4)
++#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt)
++#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str)
++#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2)
++#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str)
++#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2)
++#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task)
++#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2)
++#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str)
++#define gr_log_sig_addr(audit, msg, str, addr) gr_log_varargs(audit, msg, GR_SIG, str, addr)
++#define gr_log_sig_task(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG2, task, num)
++#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong)
++#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1)
++#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9)
++#define gr_log_rwxmap(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAP, str)
++#define gr_log_rwxmap_vma(audit, msg, str) gr_log_varargs(audit, msg, GR_RWXMAPVMA, str)
++
++void gr_log_varargs(int audit, const char *msg, int argtypes, ...);
++
++#endif
++
++#endif
+diff --git a/include/linux/grmsg.h b/include/linux/grmsg.h
+new file mode 100644
+index 0000000..26ef560
+--- /dev/null
++++ b/include/linux/grmsg.h
+@@ -0,0 +1,118 @@
++#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u"
++#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%pI4 TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u"
++#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by "
++#define GR_STOPMOD_MSG "denied modification of module state by "
++#define GR_ROFS_BLOCKWRITE_MSG "denied write to block device %.950s by "
++#define GR_ROFS_MOUNT_MSG "denied writable mount of %.950s by "
++#define GR_IOPERM_MSG "denied use of ioperm() by "
++#define GR_IOPL_MSG "denied use of iopl() by "
++#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by "
++#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by "
++#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by "
++#define GR_MEM_READWRITE_MSG "denied access of range %Lx -> %Lx in /dev/mem by "
++#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by "
++#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%pI4"
++#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%pI4"
++#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by "
++#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by "
++#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by "
++#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by "
++#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by "
++#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by "
++#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by "
++#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%pI4 %.480s[%.16s:%d], parent %.480s[%.16s:%d] against "
++#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by "
++#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by "
++#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by "
++#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by "
++#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for "
++#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by "
++#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by "
++#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by "
++#define GR_UNSAFESHARE_EXEC_ACL_MSG "denied exec with cloned fs of %.950s by "
++#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by "
++#define GR_EXEC_ACL_MSG "%s execution of %.950s by "
++#define GR_EXEC_TPE_MSG "denied untrusted exec (due to %.70s) of %.950s by "
++#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds"
++#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds"
++#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by "
++#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by "
++#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by "
++#define GR_ATIME_ACL_MSG "%s access time change of %.950s by "
++#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by "
++#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by "
++#define GR_CHROOT_RENAME_MSG "denied bad rename of %.950s out of a chroot by "
++#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by "
++#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by "
++#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by "
++#define GR_CHROOT_FHANDLE_MSG "denied use of file handles inside chroot by "
++#define GR_CHOWN_ACL_MSG "%s chown of %.950s by "
++#define GR_SETXATTR_ACL_MSG "%s setting extended attribute of %.950s by "
++#define GR_REMOVEXATTR_ACL_MSG "%s removing extended attribute of %.950s by "
++#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by "
++#define GR_INITF_ACL_MSG "init_variables() failed %s by "
++#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader"
++#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbage by "
++#define GR_SHUTS_ACL_MSG "shutdown auth success for "
++#define GR_SHUTF_ACL_MSG "shutdown auth failure for "
++#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for "
++#define GR_SEGVMODS_ACL_MSG "segvmod auth success for "
++#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for "
++#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for "
++#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by "
++#define GR_ENABLEF_ACL_MSG "unable to load %s for "
++#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system"
++#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by "
++#define GR_RELOADF_ACL_MSG "failed reload of %s for "
++#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for "
++#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by "
++#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by "
++#define GR_SPROLEF_ACL_MSG "special role %s failure for "
++#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for "
++#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by "
++#define GR_INVMODE_ACL_MSG "invalid mode %d by "
++#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by "
++#define GR_FAILFORK_MSG "failed fork with errno %s by "
++#define GR_NICE_CHROOT_MSG "denied priority change by "
++#define GR_UNISIGLOG_MSG "%.32s occurred at %p in "
++#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by "
++#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by "
++#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by "
++#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by "
++#define GR_TIME_MSG "time set by "
++#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by "
++#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by "
++#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by "
++#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by "
++#define GR_SOCK_NOINET_MSG "denied socket(%.16s,%.16s,%d) by "
++#define GR_BIND_MSG "denied bind() by "
++#define GR_CONNECT_MSG "denied connect() by "
++#define GR_BIND_ACL_MSG "denied bind() to %pI4 port %u sock type %.16s protocol %.16s by "
++#define GR_CONNECT_ACL_MSG "denied connect() to %pI4 port %u sock type %.16s protocol %.16s by "
++#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%pI4\t%u\t%u\t%u\t%u\t%pI4"
++#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process "
++#define GR_CAP_ACL_MSG "use of %s denied for "
++#define GR_CAP_CHROOT_MSG "use of %s in chroot denied for "
++#define GR_CAP_ACL_MSG2 "use of %s permitted for "
++#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for "
++#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for "
++#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by "
++#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by "
++#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by "
++#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by "
++#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by "
++#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for "
++#define GR_RWXMMAP_MSG "denied RWX mmap of %.950s by "
++#define GR_RWXMPROTECT_MSG "denied RWX mprotect of %.950s by "
++#define GR_TEXTREL_AUDIT_MSG "denied text relocation in %.950s, VMA:0x%08lx 0x%08lx by "
++#define GR_PTGNUSTACK_MSG "denied marking stack executable as requested by PT_GNU_STACK marking in %.950s by "
++#define GR_VM86_MSG "denied use of vm86 by "
++#define GR_PTRACE_AUDIT_MSG "process %.950s(%.16s:%d) attached to via ptrace by "
++#define GR_PTRACE_READEXEC_MSG "denied ptrace of unreadable binary %.950s by "
++#define GR_INIT_TRANSFER_MSG "persistent special role transferred privilege to init by "
++#define GR_BADPROCPID_MSG "denied read of sensitive /proc/pid/%s entry via fd passed across exec by "
++#define GR_SYMLINKOWNER_MSG "denied following symlink %.950s since symlink owner %u does not match target owner %u, by "
++#define GR_BRUTE_DAEMON_MSG "bruteforce prevention initiated for the next 30 minutes or until service restarted, stalling each fork 30 seconds.  Please investigate the crash report for "
++#define GR_BRUTE_SUID_MSG "bruteforce prevention initiated due to crash of %.950s against uid %u, banning suid/sgid execs for %u minutes.  Please investigate the crash report for "
++#define GR_IPC_DENIED_MSG "denied %s of overly-permissive IPC object with creator uid %u by "
++#define GR_MSRWRITE_MSG "denied write to CPU MSR by "
+diff --git a/include/linux/grsecurity.h b/include/linux/grsecurity.h
+new file mode 100644
+index 0000000..0fb332e
+--- /dev/null
++++ b/include/linux/grsecurity.h
+@@ -0,0 +1,260 @@
++#ifndef GR_SECURITY_H
++#define GR_SECURITY_H
++#include <linux/fs.h>
++#include <linux/fs_struct.h>
++#include <linux/binfmts.h>
++#include <linux/gracl.h>
++
++/* notify of brain-dead configs */
++#if defined(CONFIG_GRKERNSEC_PROC_USER) && defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++#error "CONFIG_GRKERNSEC_PROC_USER and CONFIG_GRKERNSEC_PROC_USERGROUP cannot both be enabled."
++#endif
++#if defined(CONFIG_GRKERNSEC_PROC) && !defined(CONFIG_GRKERNSEC_PROC_USER) && !defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++#error "CONFIG_GRKERNSEC_PROC enabled, but neither CONFIG_GRKERNSEC_PROC_USER nor CONFIG_GRKERNSEC_PROC_USERGROUP enabled"
++#endif
++#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC)
++#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled."
++#endif
++#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP)
++#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled."
++#endif
++#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR)
++#error "CONFIG_PAX enabled, but no PaX options are enabled."
++#endif
++
++int gr_handle_new_usb(void);
++
++void gr_handle_brute_attach(int dumpable);
++void gr_handle_brute_check(void);
++void gr_handle_kernel_exploit(void);
++
++char gr_roletype_to_char(void);
++
++int gr_proc_is_restricted(void);
++
++int gr_acl_enable_at_secure(void);
++
++int gr_check_user_change(kuid_t real, kuid_t effective, kuid_t fs);
++int gr_check_group_change(kgid_t real, kgid_t effective, kgid_t fs);
++
++int gr_learn_cap(const struct task_struct *task, const struct cred *cred, const int cap);
++
++void gr_del_task_from_ip_table(struct task_struct *p);
++
++int gr_pid_is_chrooted(struct task_struct *p);
++int gr_handle_chroot_fowner(struct pid *pid, enum pid_type type);
++int gr_handle_chroot_nice(void);
++int gr_handle_chroot_sysctl(const int op);
++int gr_handle_chroot_setpriority(struct task_struct *p,
++					const int niceval);
++int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt);
++int gr_chroot_fhandle(void);
++int gr_handle_chroot_chroot(const struct dentry *dentry,
++				   const struct vfsmount *mnt);
++void gr_handle_chroot_chdir(const struct path *path);
++int gr_handle_chroot_chmod(const struct dentry *dentry,
++				  const struct vfsmount *mnt, const int mode);
++int gr_handle_chroot_mknod(const struct dentry *dentry,
++				  const struct vfsmount *mnt, const int mode);
++int gr_handle_chroot_mount(const struct dentry *dentry,
++				  const struct vfsmount *mnt,
++				  const char *dev_name);
++int gr_handle_chroot_pivot(void);
++int gr_handle_chroot_unix(const pid_t pid);
++
++int gr_handle_rawio(const struct inode *inode);
++
++void gr_handle_ioperm(void);
++void gr_handle_iopl(void);
++void gr_handle_msr_write(void);
++
++umode_t gr_acl_umask(void);
++
++int gr_tpe_allow(const struct file *file);
++
++void gr_set_chroot_entries(struct task_struct *task, const struct path *path);
++void gr_clear_chroot_entries(struct task_struct *task);
++
++void gr_log_forkfail(const int retval);
++void gr_log_timechange(void);
++void gr_log_signal(const int sig, const void *addr, const struct task_struct *t);
++void gr_log_chdir(const struct dentry *dentry,
++			 const struct vfsmount *mnt);
++void gr_log_chroot_exec(const struct dentry *dentry,
++			       const struct vfsmount *mnt);
++void gr_log_remount(const char *devname, const int retval);
++void gr_log_unmount(const char *devname, const int retval);
++void gr_log_mount(const char *from, const char *to, const int retval);
++void gr_log_textrel(struct vm_area_struct *vma);
++void gr_log_ptgnustack(struct file *file);
++void gr_log_rwxmmap(struct file *file);
++void gr_log_rwxmprotect(struct vm_area_struct *vma);
++
++int gr_handle_follow_link(const struct inode *parent,
++				 const struct inode *inode,
++				 const struct dentry *dentry,
++				 const struct vfsmount *mnt);
++int gr_handle_fifo(const struct dentry *dentry,
++			  const struct vfsmount *mnt,
++			  const struct dentry *dir, const int flag,
++			  const int acc_mode);
++int gr_handle_hardlink(const struct dentry *dentry,
++			      const struct vfsmount *mnt,
++			      struct inode *inode,
++			      const int mode, const struct filename *to);
++
++int gr_is_capable(const int cap);
++int gr_is_capable_nolog(const int cap);
++int gr_task_is_capable(const struct task_struct *task, const struct cred *cred, const int cap);
++int gr_task_is_capable_nolog(const struct task_struct *task, const int cap);
++
++void gr_copy_label(struct task_struct *tsk);
++void gr_handle_crash(struct task_struct *task, const int sig);
++int gr_handle_signal(const struct task_struct *p, const int sig);
++int gr_check_crash_uid(const kuid_t uid);
++int gr_check_protected_task(const struct task_struct *task);
++int gr_check_protected_task_fowner(struct pid *pid, enum pid_type type);
++int gr_acl_handle_mmap(const struct file *file,
++			      const unsigned long prot);
++int gr_acl_handle_mprotect(const struct file *file,
++				  const unsigned long prot);
++int gr_check_hidden_task(const struct task_struct *tsk);
++__u32 gr_acl_handle_truncate(const struct dentry *dentry,
++				    const struct vfsmount *mnt);
++__u32 gr_acl_handle_utime(const struct dentry *dentry,
++				 const struct vfsmount *mnt);
++__u32 gr_acl_handle_access(const struct dentry *dentry,
++				  const struct vfsmount *mnt, const int fmode);
++__u32 gr_acl_handle_chmod(const struct dentry *dentry,
++				 const struct vfsmount *mnt, umode_t *mode);
++__u32 gr_acl_handle_chown(const struct dentry *dentry,
++				 const struct vfsmount *mnt);
++__u32 gr_acl_handle_setxattr(const struct dentry *dentry,
++				 const struct vfsmount *mnt);
++__u32 gr_acl_handle_removexattr(const struct dentry *dentry,
++				 const struct vfsmount *mnt);
++int gr_handle_ptrace(struct task_struct *task, const long request);
++int gr_handle_proc_ptrace(struct task_struct *task);
++__u32 gr_acl_handle_execve(const struct dentry *dentry,
++				  const struct vfsmount *mnt);
++int gr_check_crash_exec(const struct file *filp);
++int gr_acl_is_enabled(void);
++void gr_set_role_label(struct task_struct *task, const kuid_t uid,
++			      const kgid_t gid);
++int gr_set_proc_label(const struct dentry *dentry,
++			const struct vfsmount *mnt,
++			const int unsafe_flags);
++__u32 gr_acl_handle_hidden_file(const struct dentry *dentry,
++				const struct vfsmount *mnt);
++__u32 gr_acl_handle_open(const struct dentry *dentry,
++				const struct vfsmount *mnt, int acc_mode);
++__u32 gr_acl_handle_creat(const struct dentry *dentry,
++				 const struct dentry *p_dentry,
++				 const struct vfsmount *p_mnt,
++				 int open_flags, int acc_mode, const int imode);
++void gr_handle_create(const struct dentry *dentry,
++			     const struct vfsmount *mnt);
++void gr_handle_proc_create(const struct dentry *dentry,
++			   const struct inode *inode);
++__u32 gr_acl_handle_mknod(const struct dentry *new_dentry,
++				 const struct dentry *parent_dentry,
++				 const struct vfsmount *parent_mnt,
++				 const int mode);
++__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry,
++				 const struct dentry *parent_dentry,
++				 const struct vfsmount *parent_mnt);
++__u32 gr_acl_handle_rmdir(const struct dentry *dentry,
++				 const struct vfsmount *mnt);
++void gr_handle_delete(const u64 ino, const dev_t dev);
++__u32 gr_acl_handle_unlink(const struct dentry *dentry,
++				  const struct vfsmount *mnt);
++__u32 gr_acl_handle_symlink(const struct dentry *new_dentry,
++				   const struct dentry *parent_dentry,
++				   const struct vfsmount *parent_mnt,
++				   const struct filename *from);
++__u32 gr_acl_handle_link(const struct dentry *new_dentry,
++				const struct dentry *parent_dentry,
++				const struct vfsmount *parent_mnt,
++				const struct dentry *old_dentry,
++				const struct vfsmount *old_mnt, const struct filename *to);
++int gr_handle_symlink_owner(const struct path *link, const struct inode *target);
++int gr_acl_handle_rename(struct dentry *new_dentry,
++				struct dentry *parent_dentry,
++				const struct vfsmount *parent_mnt,
++				struct dentry *old_dentry,
++				struct inode *old_parent_inode,
++				struct vfsmount *old_mnt, const struct filename *newname);
++void gr_handle_rename(struct inode *old_dir, struct inode *new_dir,
++				struct dentry *old_dentry,
++				struct dentry *new_dentry,
++				struct vfsmount *mnt, const __u8 replace);
++__u32 gr_check_link(const struct dentry *new_dentry,
++			   const struct dentry *parent_dentry,
++			   const struct vfsmount *parent_mnt,
++			   const struct dentry *old_dentry,
++			   const struct vfsmount *old_mnt);
++int gr_acl_handle_filldir(const struct file *file, const char *name,
++				 const unsigned int namelen, const u64 ino);
++
++__u32 gr_acl_handle_unix(const struct dentry *dentry,
++				const struct vfsmount *mnt);
++void gr_acl_handle_exit(void);
++void gr_acl_handle_psacct(struct task_struct *task, const long code);
++int gr_acl_handle_procpidmem(const struct task_struct *task);
++int gr_handle_rofs_mount(struct dentry *dentry, struct vfsmount *mnt, int mnt_flags);
++int gr_handle_rofs_blockwrite(struct dentry *dentry, struct vfsmount *mnt, int acc_mode);
++void gr_audit_ptrace(struct task_struct *task);
++dev_t gr_get_dev_from_dentry(struct dentry *dentry);
++u64 gr_get_ino_from_dentry(struct dentry *dentry);
++void gr_put_exec_file(struct task_struct *task);
++
++int gr_ptrace_readexec(struct file *file, int unsafe_flags);
++
++#if defined(CONFIG_GRKERNSEC) && (defined(CONFIG_GRKERNSEC_RESLOG) || !defined(CONFIG_GRKERNSEC_NO_RBAC))
++extern void gr_learn_resource(const struct task_struct *task, const int res,
++			      const unsigned long wanted, const int gt);
++#else
++static inline void gr_learn_resource(const struct task_struct *task, const int res,
++				     const unsigned long wanted, const int gt)
++{
++}
++#endif
++
++#ifdef CONFIG_GRKERNSEC_RESLOG
++extern void gr_log_resource(const struct task_struct *task, const int res,
++				const unsigned long wanted, const int gt);
++#else
++static inline void gr_log_resource(const struct task_struct *task, const int res,
++				const unsigned long wanted, const int gt)
++{
++}
++#endif
++
++void gr_inc_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
++void gr_dec_chroot_refcnts(struct dentry *dentry, struct vfsmount *mnt);
++int gr_bad_chroot_rename(struct dentry *olddentry, struct vfsmount *oldmnt,
++			 struct dentry *newdentry, struct vfsmount *newmnt);
++
++#ifdef CONFIG_GRKERNSEC
++void task_grsec_rbac(struct seq_file *m, struct task_struct *p);
++void gr_handle_vm86(void);
++void gr_handle_mem_readwrite(u64 from, u64 to);
++
++void gr_log_badprocpid(const char *entry);
++
++extern int grsec_enable_dmesg;
++extern int grsec_disable_privio;
++
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++extern kgid_t grsec_proc_gid;
++#endif
++
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++extern int grsec_enable_chroot_findtask;
++#endif
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern int grsec_enable_setxid;
++#endif
++#endif
++
++#endif
+diff --git a/include/linux/grsock.h b/include/linux/grsock.h
+new file mode 100644
+index 0000000..e7ffaaf
+--- /dev/null
++++ b/include/linux/grsock.h
+@@ -0,0 +1,19 @@
++#ifndef __GRSOCK_H
++#define __GRSOCK_H
++
++extern void gr_attach_curr_ip(const struct sock *sk);
++extern int gr_handle_sock_all(const int family, const int type,
++			      const int protocol);
++extern int gr_handle_sock_server(const struct sockaddr *sck);
++extern int gr_handle_sock_server_other(const struct sock *sck);
++extern int gr_handle_sock_client(const struct sockaddr *sck);
++extern int gr_search_connect(struct socket * sock,
++			     struct sockaddr_in * addr);
++extern int gr_search_bind(struct socket * sock,
++			  struct sockaddr_in * addr);
++extern int gr_search_listen(struct socket * sock);
++extern int gr_search_accept(struct socket * sock);
++extern int gr_search_socket(const int domain, const int type,
++			    const int protocol);
++
++#endif
+diff --git a/include/linux/hash.h b/include/linux/hash.h
+index bd1754c..69b7715 100644
+--- a/include/linux/hash.h
++++ b/include/linux/hash.h
+@@ -37,6 +37,9 @@ static __always_inline u64 hash_64(u64 val, unsigned int bits)
+ {
+ 	u64 hash = val;
+ 
++#if defined(CONFIG_ARCH_HAS_FAST_MULTIPLIER) && BITS_PER_LONG == 64
++	hash = hash * GOLDEN_RATIO_PRIME_64;
++#else
+ 	/*  Sigh, gcc can't optimise this alone like it does for 32 bits. */
+ 	u64 n = hash;
+ 	n <<= 18;
+@@ -51,6 +54,7 @@ static __always_inline u64 hash_64(u64 val, unsigned int bits)
+ 	hash += n;
+ 	n <<= 2;
+ 	hash += n;
++#endif
+ 
+ 	/* High bits are more random, so use them. */
+ 	return hash >> (64 - bits);
+@@ -83,7 +87,7 @@ static inline u32 hash32_ptr(const void *ptr)
+ struct fast_hash_ops {
+ 	u32 (*hash)(const void *data, u32 len, u32 seed);
+ 	u32 (*hash2)(const u32 *data, u32 len, u32 seed);
+-};
++} __no_const;
+ 
+ /**
+  *	arch_fast_hash - Caclulates a hash over a given buffer that can have
+diff --git a/include/linux/highmem.h b/include/linux/highmem.h
+index 7fb31da..08b5114 100644
+--- a/include/linux/highmem.h
++++ b/include/linux/highmem.h
+@@ -189,6 +189,18 @@ static inline void clear_highpage(struct page *page)
+ 	kunmap_atomic(kaddr);
+ }
+ 
++static inline void sanitize_highpage(struct page *page)
++{
++	void *kaddr;
++	unsigned long flags;
++
++	local_irq_save(flags);
++	kaddr = kmap_atomic(page);
++	clear_page(kaddr);
++	kunmap_atomic(kaddr);
++	local_irq_restore(flags);
++}
++
+ static inline void zero_user_segments(struct page *page,
+ 	unsigned start1, unsigned end1,
+ 	unsigned start2, unsigned end2)
+diff --git a/include/linux/hwmon-sysfs.h b/include/linux/hwmon-sysfs.h
+index 1c7b89a..7dda400 100644
+--- a/include/linux/hwmon-sysfs.h
++++ b/include/linux/hwmon-sysfs.h
+@@ -25,7 +25,8 @@
+ struct sensor_device_attribute{
+ 	struct device_attribute dev_attr;
+ 	int index;
+-};
++} __do_const;
++typedef struct sensor_device_attribute __no_const sensor_device_attribute_no_const;
+ #define to_sensor_dev_attr(_dev_attr) \
+ 	container_of(_dev_attr, struct sensor_device_attribute, dev_attr)
+ 
+@@ -41,7 +42,8 @@ struct sensor_device_attribute_2 {
+ 	struct device_attribute dev_attr;
+ 	u8 index;
+ 	u8 nr;
+-};
++} __do_const;
++typedef struct sensor_device_attribute_2 __no_const sensor_device_attribute_2_no_const;
+ #define to_sensor_dev_attr_2(_dev_attr) \
+ 	container_of(_dev_attr, struct sensor_device_attribute_2, dev_attr)
+ 
+diff --git a/include/linux/i2c.h b/include/linux/i2c.h
+index deddeb8..bcaf62d 100644
+--- a/include/linux/i2c.h
++++ b/include/linux/i2c.h
+@@ -378,6 +378,7 @@ struct i2c_algorithm {
+ 	/* To determine what the adapter supports */
+ 	u32 (*functionality) (struct i2c_adapter *);
+ };
++typedef struct i2c_algorithm __no_const i2c_algorithm_no_const;
+ 
+ /**
+  * struct i2c_bus_recovery_info - I2C bus recovery information
+diff --git a/include/linux/i2o.h b/include/linux/i2o.h
+index d23c3c2..eb63c81 100644
+--- a/include/linux/i2o.h
++++ b/include/linux/i2o.h
+@@ -565,7 +565,7 @@ struct i2o_controller {
+ 	struct i2o_device *exec;	/* Executive */
+ #if BITS_PER_LONG == 64
+ 	spinlock_t context_list_lock;	/* lock for context_list */
+-	atomic_t context_list_counter;	/* needed for unique contexts */
++	atomic_unchecked_t context_list_counter;	/* needed for unique contexts */
+ 	struct list_head context_list;	/* list of context id's
+ 					   and pointers */
+ #endif
+diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
+index aff7ad8..3942bbd 100644
+--- a/include/linux/if_pppox.h
++++ b/include/linux/if_pppox.h
+@@ -76,7 +76,7 @@ struct pppox_proto {
+ 	int		(*ioctl)(struct socket *sock, unsigned int cmd,
+ 				 unsigned long arg);
+ 	struct module	*owner;
+-};
++} __do_const;
+ 
+ extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
+ extern void unregister_pppox_proto(int proto_num);
+diff --git a/include/linux/init.h b/include/linux/init.h
+index e168880..d9b489d 100644
+--- a/include/linux/init.h
++++ b/include/linux/init.h
+@@ -37,9 +37,17 @@
+  * section.
+  */
+ 
++#define add_init_latent_entropy __latent_entropy
++
++#ifdef CONFIG_MEMORY_HOTPLUG
++#define add_meminit_latent_entropy
++#else
++#define add_meminit_latent_entropy __latent_entropy
++#endif
++
+ /* These are for everybody (although not all archs will actually
+    discard it in modules) */
+-#define __init		__section(.init.text) __cold notrace
++#define __init		__section(.init.text) __cold notrace add_init_latent_entropy
+ #define __initdata	__section(.init.data)
+ #define __initconst	__constsection(.init.rodata)
+ #define __exitdata	__section(.exit.data)
+@@ -100,7 +108,7 @@
+ #define __cpuexitconst
+ 
+ /* Used for MEMORY_HOTPLUG */
+-#define __meminit        __section(.meminit.text) __cold notrace
++#define __meminit        __section(.meminit.text) __cold notrace add_meminit_latent_entropy
+ #define __meminitdata    __section(.meminit.data)
+ #define __meminitconst   __constsection(.meminit.rodata)
+ #define __memexit        __section(.memexit.text) __exitused __cold notrace
+diff --git a/include/linux/init_task.h b/include/linux/init_task.h
+index 6df7f9f..d0bf699 100644
+--- a/include/linux/init_task.h
++++ b/include/linux/init_task.h
+@@ -156,6 +156,12 @@ extern struct task_group root_task_group;
+ 
+ #define INIT_TASK_COMM "swapper"
+ 
++#ifdef CONFIG_X86
++#define INIT_TASK_THREAD_INFO .tinfo = INIT_THREAD_INFO,
++#else
++#define INIT_TASK_THREAD_INFO
++#endif
++
+ #ifdef CONFIG_RT_MUTEXES
+ # define INIT_RT_MUTEXES(tsk)						\
+ 	.pi_waiters = RB_ROOT,						\
+@@ -203,6 +209,7 @@ extern struct task_group root_task_group;
+ 	RCU_POINTER_INITIALIZER(cred, &init_cred),			\
+ 	.comm		= INIT_TASK_COMM,				\
+ 	.thread		= INIT_THREAD,					\
++	INIT_TASK_THREAD_INFO						\
+ 	.fs		= &init_fs,					\
+ 	.files		= &init_files,					\
+ 	.signal		= &init_signals,				\
+diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
+index 203c43d..605836b 100644
+--- a/include/linux/interrupt.h
++++ b/include/linux/interrupt.h
+@@ -411,8 +411,8 @@ extern const char * const softirq_to_name[NR_SOFTIRQS];
+ 
+ struct softirq_action
+ {
+-	void	(*action)(struct softirq_action *);
+-};
++	void	(*action)(void);
++} __no_const;
+ 
+ asmlinkage void do_softirq(void);
+ asmlinkage void __do_softirq(void);
+@@ -426,7 +426,7 @@ static inline void do_softirq_own_stack(void)
+ }
+ #endif
+ 
+-extern void open_softirq(int nr, void (*action)(struct softirq_action *));
++extern void open_softirq(int nr, void (*action)(void));
+ extern void softirq_init(void);
+ extern void __raise_softirq_irqoff(unsigned int nr);
+ 
+diff --git a/include/linux/iommu.h b/include/linux/iommu.h
+index b96a5b2..2732d1c 100644
+--- a/include/linux/iommu.h
++++ b/include/linux/iommu.h
+@@ -131,7 +131,7 @@ struct iommu_ops {
+ 	u32 (*domain_get_windows)(struct iommu_domain *domain);
+ 
+ 	unsigned long pgsize_bitmap;
+-};
++} __do_const;
+ 
+ #define IOMMU_GROUP_NOTIFY_ADD_DEVICE		1 /* Device added */
+ #define IOMMU_GROUP_NOTIFY_DEL_DEVICE		2 /* Pre Device removed */
+diff --git a/include/linux/ioport.h b/include/linux/ioport.h
+index 89b7c24..382af74 100644
+--- a/include/linux/ioport.h
++++ b/include/linux/ioport.h
+@@ -161,7 +161,7 @@ struct resource *lookup_resource(struct resource *root, resource_size_t start);
+ int adjust_resource(struct resource *res, resource_size_t start,
+ 		    resource_size_t size);
+ resource_size_t resource_alignment(struct resource *res);
+-static inline resource_size_t resource_size(const struct resource *res)
++static inline resource_size_t __intentional_overflow(-1) resource_size(const struct resource *res)
+ {
+ 	return res->end - res->start + 1;
+ }
+diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
+index 35e7eca..6afb7ad 100644
+--- a/include/linux/ipc_namespace.h
++++ b/include/linux/ipc_namespace.h
+@@ -69,7 +69,7 @@ struct ipc_namespace {
+ 	struct user_namespace *user_ns;
+ 
+ 	unsigned int	proc_inum;
+-};
++} __randomize_layout;
+ 
+ extern struct ipc_namespace init_ipc_ns;
+ extern atomic_t nr_ipc_ns;
+diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
+index 2faef33..33dc081 100644
+--- a/include/linux/ipv6.h
++++ b/include/linux/ipv6.h
+@@ -193,7 +193,7 @@ struct ipv6_pinfo {
+ 	                        sndflow:1,
+ 				repflow:1,
+ 				pmtudisc:3,
+-				ipv6only:1,
++				padding:1,	/* 1 bit hole */
+ 				srcprefs:3,	/* 001: prefer temporary address
+ 						 * 010: prefer public address
+ 						 * 100: prefer care-of address
+@@ -282,8 +282,8 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
+ 	__inet_sk_copy_descendant(sk_to, sk_from, ancestor_size);
+ }
+ 
+-#define __ipv6_only_sock(sk)	(inet6_sk(sk)->ipv6only)
+-#define ipv6_only_sock(sk)	((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk))
++#define __ipv6_only_sock(sk)	(sk->sk_ipv6only)
++#define ipv6_only_sock(sk)	(__ipv6_only_sock(sk))
+ #define ipv6_sk_rxinfo(sk)	((sk)->sk_family == PF_INET6 && \
+ 				 inet6_sk(sk)->rxopt.bits.rxinfo)
+ 
+@@ -296,8 +296,8 @@ static inline const struct in6_addr *inet6_rcv_saddr(const struct sock *sk)
+ 
+ static inline int inet_v6_ipv6only(const struct sock *sk)
+ {
+-	return likely(sk->sk_state != TCP_TIME_WAIT) ?
+-		ipv6_only_sock(sk) : inet_twsk(sk)->tw_ipv6only;
++	/* ipv6only field is at same position for timewait and other sockets */
++	return ipv6_only_sock(sk);
+ }
+ #else
+ #define __ipv6_only_sock(sk)	0
+diff --git a/include/linux/irq.h b/include/linux/irq.h
+index ef1ac9f..e1db06c 100644
+--- a/include/linux/irq.h
++++ b/include/linux/irq.h
+@@ -338,7 +338,8 @@ struct irq_chip {
+ 	void		(*irq_print_chip)(struct irq_data *data, struct seq_file *p);
+ 
+ 	unsigned long	flags;
+-};
++} __do_const;
++typedef struct irq_chip __no_const irq_chip_no_const;
+ 
+ /*
+  * irq_chip specific flags
+diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
+index 0ceb389..eed3fb8 100644
+--- a/include/linux/irqchip/arm-gic.h
++++ b/include/linux/irqchip/arm-gic.h
+@@ -73,9 +73,11 @@
+ 
+ #ifndef __ASSEMBLY__
+ 
++#include <linux/irq.h>
++
+ struct device_node;
+ 
+-extern struct irq_chip gic_arch_extn;
++extern irq_chip_no_const gic_arch_extn;
+ 
+ void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
+ 		    u32 offset, struct device_node *);
+diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
+index 472c021..097cc8b 100644
+--- a/include/linux/irqdesc.h
++++ b/include/linux/irqdesc.h
+@@ -54,7 +54,7 @@ struct irq_desc {
+ 	unsigned int		irq_count;	/* For detecting broken IRQs */
+ 	unsigned long		last_unhandled;	/* Aging timer for unhandled count */
+ 	unsigned int		irqs_unhandled;
+-	atomic_t		threads_handled;
++	atomic_unchecked_t	threads_handled;
+ 	int			threads_handled_last;
+ 	raw_spinlock_t		lock;
+ 	struct cpumask		*percpu_enabled;
+diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
+index c367cbd..c9b79e6 100644
+--- a/include/linux/jiffies.h
++++ b/include/linux/jiffies.h
+@@ -280,20 +280,20 @@ extern unsigned long preset_lpj;
+ /*
+  * Convert various time units to each other:
+  */
+-extern unsigned int jiffies_to_msecs(const unsigned long j);
+-extern unsigned int jiffies_to_usecs(const unsigned long j);
++extern unsigned int jiffies_to_msecs(const unsigned long j) __intentional_overflow(-1);
++extern unsigned int jiffies_to_usecs(const unsigned long j) __intentional_overflow(-1);
+ 
+-static inline u64 jiffies_to_nsecs(const unsigned long j)
++static inline u64 __intentional_overflow(-1) jiffies_to_nsecs(const unsigned long j)
+ {
+ 	return (u64)jiffies_to_usecs(j) * NSEC_PER_USEC;
+ }
+ 
+-extern unsigned long msecs_to_jiffies(const unsigned int m);
+-extern unsigned long usecs_to_jiffies(const unsigned int u);
++extern unsigned long msecs_to_jiffies(const unsigned int m) __intentional_overflow(-1);
++extern unsigned long usecs_to_jiffies(const unsigned int u) __intentional_overflow(-1);
+ extern unsigned long timespec_to_jiffies(const struct timespec *value);
+ extern void jiffies_to_timespec(const unsigned long jiffies,
+-				struct timespec *value);
+-extern unsigned long timeval_to_jiffies(const struct timeval *value);
++				struct timespec *value) __intentional_overflow(-1);
++extern unsigned long timeval_to_jiffies(const struct timeval *value) __intentional_overflow(-1);
+ extern void jiffies_to_timeval(const unsigned long jiffies,
+ 			       struct timeval *value);
+ 
+diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
+index 6883e19..e854fcb 100644
+--- a/include/linux/kallsyms.h
++++ b/include/linux/kallsyms.h
+@@ -15,7 +15,8 @@
+ 
+ struct module;
+ 
+-#ifdef CONFIG_KALLSYMS
++#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS)
++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ /* Lookup the address for a symbol. Returns 0 if not found. */
+ unsigned long kallsyms_lookup_name(const char *name);
+ 
+@@ -106,6 +107,21 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
+ /* Stupid that this does nothing, but I didn't create this mess. */
+ #define __print_symbol(fmt, addr)
+ #endif /*CONFIG_KALLSYMS*/
++#else /* when included by kallsyms.c, vsnprintf.c, kprobes.c, or
++	arch/x86/kernel/dumpstack.c, with HIDESYM enabled */
++extern unsigned long kallsyms_lookup_name(const char *name);
++extern void __print_symbol(const char *fmt, unsigned long address);
++extern int sprint_backtrace(char *buffer, unsigned long address);
++extern int sprint_symbol(char *buffer, unsigned long address);
++extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
++const char *kallsyms_lookup(unsigned long addr,
++			    unsigned long *symbolsize,
++			    unsigned long *offset,
++			    char **modname, char *namebuf);
++extern int kallsyms_lookup_size_offset(unsigned long addr,
++				  unsigned long *symbolsize,
++				  unsigned long *offset);
++#endif
+ 
+ /* This macro allows us to keep printk typechecking */
+ static __printf(1, 2)
+diff --git a/include/linux/key-type.h b/include/linux/key-type.h
+index a74c3a8..28d3f21 100644
+--- a/include/linux/key-type.h
++++ b/include/linux/key-type.h
+@@ -131,7 +131,7 @@ struct key_type {
+ 	/* internal fields */
+ 	struct list_head	link;		/* link in types list */
+ 	struct lock_class_key	lock_class;	/* key->sem lock class */
+-};
++} __do_const;
+ 
+ extern struct key_type key_type_keyring;
+ 
+diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
+index e465bb1..19f605fd 100644
+--- a/include/linux/kgdb.h
++++ b/include/linux/kgdb.h
+@@ -52,7 +52,7 @@ extern int kgdb_connected;
+ extern int kgdb_io_module_registered;
+ 
+ extern atomic_t			kgdb_setting_breakpoint;
+-extern atomic_t			kgdb_cpu_doing_single_step;
++extern atomic_unchecked_t	kgdb_cpu_doing_single_step;
+ 
+ extern struct task_struct	*kgdb_usethread;
+ extern struct task_struct	*kgdb_contthread;
+@@ -254,7 +254,7 @@ struct kgdb_arch {
+ 	void	(*correct_hw_break)(void);
+ 
+ 	void	(*enable_nmi)(bool on);
+-};
++} __do_const;
+ 
+ /**
+  * struct kgdb_io - Describe the interface for an I/O driver to talk with KGDB.
+@@ -279,7 +279,7 @@ struct kgdb_io {
+ 	void			(*pre_exception) (void);
+ 	void			(*post_exception) (void);
+ 	int			is_console;
+-};
++} __do_const;
+ 
+ extern struct kgdb_arch		arch_kgdb_ops;
+ 
+diff --git a/include/linux/kmod.h b/include/linux/kmod.h
+index 0555cc6..40116ce 100644
+--- a/include/linux/kmod.h
++++ b/include/linux/kmod.h
+@@ -34,6 +34,8 @@ extern char modprobe_path[]; /* for sysctl */
+  * usually useless though. */
+ extern __printf(2, 3)
+ int __request_module(bool wait, const char *name, ...);
++extern __printf(3, 4)
++int ___request_module(bool wait, char *param_name, const char *name, ...);
+ #define request_module(mod...) __request_module(true, mod)
+ #define request_module_nowait(mod...) __request_module(false, mod)
+ #define try_then_request_module(x, mod...) \
+@@ -57,6 +59,9 @@ struct subprocess_info {
+ 	struct work_struct work;
+ 	struct completion *complete;
+ 	char *path;
++#ifdef CONFIG_GRKERNSEC
++	char *origpath;
++#endif
+ 	char **argv;
+ 	char **envp;
+ 	int wait;
+diff --git a/include/linux/kobject.h b/include/linux/kobject.h
+index 926afb6..58dd6e5 100644
+--- a/include/linux/kobject.h
++++ b/include/linux/kobject.h
+@@ -116,7 +116,7 @@ struct kobj_type {
+ 	struct attribute **default_attrs;
+ 	const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
+ 	const void *(*namespace)(struct kobject *kobj);
+-};
++} __do_const;
+ 
+ struct kobj_uevent_env {
+ 	char *envp[UEVENT_NUM_ENVP];
+@@ -139,6 +139,7 @@ struct kobj_attribute {
+ 	ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
+ 			 const char *buf, size_t count);
+ };
++typedef struct kobj_attribute __no_const kobj_attribute_no_const;
+ 
+ extern const struct sysfs_ops kobj_sysfs_ops;
+ 
+@@ -166,7 +167,7 @@ struct kset {
+ 	spinlock_t list_lock;
+ 	struct kobject kobj;
+ 	const struct kset_uevent_ops *uevent_ops;
+-};
++} __randomize_layout;
+ 
+ extern void kset_init(struct kset *kset);
+ extern int __must_check kset_register(struct kset *kset);
+diff --git a/include/linux/kobject_ns.h b/include/linux/kobject_ns.h
+index df32d25..fb52e27 100644
+--- a/include/linux/kobject_ns.h
++++ b/include/linux/kobject_ns.h
+@@ -44,7 +44,7 @@ struct kobj_ns_type_operations {
+ 	const void *(*netlink_ns)(struct sock *sk);
+ 	const void *(*initial_ns)(void);
+ 	void (*drop_ns)(void *);
+-};
++} __do_const;
+ 
+ int kobj_ns_type_register(const struct kobj_ns_type_operations *ops);
+ int kobj_ns_type_registered(enum kobj_ns_type type);
+diff --git a/include/linux/kref.h b/include/linux/kref.h
+index 484604d..0f6c5b6 100644
+--- a/include/linux/kref.h
++++ b/include/linux/kref.h
+@@ -68,7 +68,7 @@ static inline void kref_get(struct kref *kref)
+ static inline int kref_sub(struct kref *kref, unsigned int count,
+ 	     void (*release)(struct kref *kref))
+ {
+-	WARN_ON(release == NULL);
++	BUG_ON(release == NULL);
+ 
+ 	if (atomic_sub_and_test((int) count, &kref->refcount)) {
+ 		release(kref);
+diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
+index b8e9a43..632678d 100644
+--- a/include/linux/kvm_host.h
++++ b/include/linux/kvm_host.h
+@@ -455,7 +455,7 @@ static inline void kvm_irqfd_exit(void)
+ {
+ }
+ #endif
+-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
++int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+ 		  struct module *module);
+ void kvm_exit(void);
+ 
+@@ -621,7 +621,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+ 					struct kvm_guest_debug *dbg);
+ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
+ 
+-int kvm_arch_init(void *opaque);
++int kvm_arch_init(const void *opaque);
+ void kvm_arch_exit(void);
+ 
+ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
+diff --git a/include/linux/libata.h b/include/linux/libata.h
+index b84e786..2e320a9 100644
+--- a/include/linux/libata.h
++++ b/include/linux/libata.h
+@@ -986,7 +986,7 @@ struct ata_port_operations {
+ 	 * fields must be pointers.
+ 	 */
+ 	const struct ata_port_operations	*inherits;
+-};
++} __do_const;
+ 
+ struct ata_port_info {
+ 	unsigned long		flags;
+diff --git a/include/linux/linkage.h b/include/linux/linkage.h
+index a6a42dd..6c5ebce 100644
+--- a/include/linux/linkage.h
++++ b/include/linux/linkage.h
+@@ -36,6 +36,7 @@
+ #endif
+ 
+ #define __page_aligned_data	__section(.data..page_aligned) __aligned(PAGE_SIZE)
++#define __page_aligned_rodata	__read_only __aligned(PAGE_SIZE)
+ #define __page_aligned_bss	__section(.bss..page_aligned) __aligned(PAGE_SIZE)
+ 
+ /*
+diff --git a/include/linux/list.h b/include/linux/list.h
+index ef95941..82db65a 100644
+--- a/include/linux/list.h
++++ b/include/linux/list.h
+@@ -112,6 +112,19 @@ extern void __list_del_entry(struct list_head *entry);
+ extern void list_del(struct list_head *entry);
+ #endif
+ 
++extern void __pax_list_add(struct list_head *new,
++			      struct list_head *prev,
++			      struct list_head *next);
++static inline void pax_list_add(struct list_head *new, struct list_head *head)
++{
++	__pax_list_add(new, head, head->next);
++}
++static inline void pax_list_add_tail(struct list_head *new, struct list_head *head)
++{
++	__pax_list_add(new, head->prev, head);
++}
++extern void pax_list_del(struct list_head *entry);
++
+ /**
+  * list_replace - replace old entry by new one
+  * @old : the element to be replaced
+@@ -145,6 +158,8 @@ static inline void list_del_init(struct list_head *entry)
+ 	INIT_LIST_HEAD(entry);
+ }
+ 
++extern void pax_list_del_init(struct list_head *entry);
++
+ /**
+  * list_move - delete from one list and add as another's head
+  * @list: the entry to move
+diff --git a/include/linux/lockref.h b/include/linux/lockref.h
+index 4bfde0e..d6e2e09 100644
+--- a/include/linux/lockref.h
++++ b/include/linux/lockref.h
+@@ -47,4 +47,36 @@ static inline int __lockref_is_dead(const struct lockref *l)
+ 	return ((int)l->count < 0);
+ }
+ 
++static inline unsigned int __lockref_read(struct lockref *lockref)
++{
++	return lockref->count;
++}
++
++static inline void __lockref_set(struct lockref *lockref, unsigned int count)
++{
++	lockref->count = count;
++}
++
++static inline void __lockref_inc(struct lockref *lockref)
++{
++
++#ifdef CONFIG_PAX_REFCOUNT
++	atomic_inc((atomic_t *)&lockref->count);
++#else
++	lockref->count++;
++#endif
++
++}
++
++static inline void __lockref_dec(struct lockref *lockref)
++{
++
++#ifdef CONFIG_PAX_REFCOUNT
++	atomic_dec((atomic_t *)&lockref->count);
++#else
++	lockref->count--;
++#endif
++
++}
++
+ #endif /* __LINUX_LOCKREF_H */
+diff --git a/include/linux/math64.h b/include/linux/math64.h
+index c45c089..298841c 100644
+--- a/include/linux/math64.h
++++ b/include/linux/math64.h
+@@ -15,7 +15,7 @@
+  * This is commonly provided by 32bit archs to provide an optimized 64bit
+  * divide.
+  */
+-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
++static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+ {
+ 	*remainder = dividend % divisor;
+ 	return dividend / divisor;
+@@ -42,7 +42,7 @@ static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
+ /**
+  * div64_u64 - unsigned 64bit divide with 64bit divisor
+  */
+-static inline u64 div64_u64(u64 dividend, u64 divisor)
++static inline u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
+ {
+ 	return dividend / divisor;
+ }
+@@ -61,7 +61,7 @@ static inline s64 div64_s64(s64 dividend, s64 divisor)
+ #define div64_ul(x, y)   div_u64((x), (y))
+ 
+ #ifndef div_u64_rem
+-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
++static inline u64 __intentional_overflow(-1) div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+ {
+ 	*remainder = do_div(dividend, divisor);
+ 	return dividend;
+@@ -77,7 +77,7 @@ extern u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder);
+ #endif
+ 
+ #ifndef div64_u64
+-extern u64 div64_u64(u64 dividend, u64 divisor);
++extern u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor);
+ #endif
+ 
+ #ifndef div64_s64
+@@ -94,7 +94,7 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
+  * divide.
+  */
+ #ifndef div_u64
+-static inline u64 div_u64(u64 dividend, u32 divisor)
++static inline u64 __intentional_overflow(-1) div_u64(u64 dividend, u32 divisor)
+ {
+ 	u32 remainder;
+ 	return div_u64_rem(dividend, divisor, &remainder);
+diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
+index 5bba088..7ad4ae7 100644
+--- a/include/linux/mempolicy.h
++++ b/include/linux/mempolicy.h
+@@ -91,6 +91,10 @@ static inline struct mempolicy *mpol_dup(struct mempolicy *pol)
+ }
+ 
+ #define vma_policy(vma) ((vma)->vm_policy)
++static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
++{
++	vma->vm_policy = pol;
++}
+ 
+ static inline void mpol_get(struct mempolicy *pol)
+ {
+@@ -229,6 +233,9 @@ static inline void mpol_free_shared_policy(struct shared_policy *p)
+ }
+ 
+ #define vma_policy(vma) NULL
++static inline void set_vma_policy(struct vm_area_struct *vma, struct mempolicy *pol)
++{
++}
+ 
+ static inline int
+ vma_dup_policy(struct vm_area_struct *src, struct vm_area_struct *dst)
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index a7b311d..5aef73c 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -127,6 +127,11 @@ extern unsigned int kobjsize(const void *objp);
+ #define VM_HUGETLB	0x00400000	/* Huge TLB Page VM */
+ #define VM_NONLINEAR	0x00800000	/* Is non-linear (remap_file_pages) */
+ #define VM_ARCH_1	0x01000000	/* Architecture-specific flag */
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++#define VM_PAGEEXEC	0x02000000	/* vma->vm_page_prot needs special handling */
++#endif
++
+ #define VM_DONTDUMP	0x04000000	/* Do not include in the core dump */
+ 
+ #ifdef CONFIG_MEM_SOFT_DIRTY
+@@ -229,8 +234,8 @@ struct vm_operations_struct {
+ 	/* called by access_process_vm when get_user_pages() fails, typically
+ 	 * for use by special VMAs that can switch between memory and hardware
+ 	 */
+-	int (*access)(struct vm_area_struct *vma, unsigned long addr,
+-		      void *buf, int len, int write);
++	ssize_t (*access)(struct vm_area_struct *vma, unsigned long addr,
++		      void *buf, size_t len, int write);
+ #ifdef CONFIG_NUMA
+ 	/*
+ 	 * set_policy() op must add a reference to any non-NULL @new mempolicy
+@@ -260,6 +265,7 @@ struct vm_operations_struct {
+ 	int (*remap_pages)(struct vm_area_struct *vma, unsigned long addr,
+ 			   unsigned long size, pgoff_t pgoff);
+ };
++typedef struct vm_operations_struct __no_const vm_operations_struct_no_const;
+ 
+ struct mmu_gather;
+ struct inode;
+@@ -362,6 +368,8 @@ static inline int is_vmalloc_or_module_addr(const void *x)
+ }
+ #endif
+ 
++extern void kvfree(const void *addr);
++
+ static inline void compound_lock(struct page *page)
+ {
+ #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+@@ -1122,8 +1130,8 @@ int follow_pfn(struct vm_area_struct *vma, unsigned long address,
+ 	unsigned long *pfn);
+ int follow_phys(struct vm_area_struct *vma, unsigned long address,
+ 		unsigned int flags, unsigned long *prot, resource_size_t *phys);
+-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+-			void *buf, int len, int write);
++ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
++			void *buf, size_t len, int write);
+ 
+ static inline void unmap_shared_mapping_range(struct address_space *mapping,
+ 		loff_t const holebegin, loff_t const holelen)
+@@ -1163,9 +1171,9 @@ static inline int fixup_user_fault(struct task_struct *tsk,
+ }
+ #endif
+ 
+-extern int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write);
+-extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
+-		void *buf, int len, int write);
++extern ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write);
++extern ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
++		void *buf, size_t len, int write);
+ 
+ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
+ 		      unsigned long start, unsigned long nr_pages,
+@@ -1197,34 +1205,6 @@ int set_page_dirty(struct page *page);
+ int set_page_dirty_lock(struct page *page);
+ int clear_page_dirty_for_io(struct page *page);
+ 
+-/* Is the vma a continuation of the stack vma above it? */
+-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
+-{
+-	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
+-}
+-
+-static inline int stack_guard_page_start(struct vm_area_struct *vma,
+-					     unsigned long addr)
+-{
+-	return (vma->vm_flags & VM_GROWSDOWN) &&
+-		(vma->vm_start == addr) &&
+-		!vma_growsdown(vma->vm_prev, addr);
+-}
+-
+-/* Is the vma a continuation of the stack vma below it? */
+-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
+-{
+-	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
+-}
+-
+-static inline int stack_guard_page_end(struct vm_area_struct *vma,
+-					   unsigned long addr)
+-{
+-	return (vma->vm_flags & VM_GROWSUP) &&
+-		(vma->vm_end == addr) &&
+-		!vma_growsup(vma->vm_next, addr);
+-}
+-
+ extern pid_t
+ vm_is_stack(struct task_struct *task, struct vm_area_struct *vma, int in_group);
+ 
+@@ -1324,6 +1304,15 @@ static inline void sync_mm_rss(struct mm_struct *mm)
+ }
+ #endif
+ 
++#ifdef CONFIG_MMU
++pgprot_t vm_get_page_prot(vm_flags_t vm_flags);
++#else
++static inline pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
++{
++	return __pgprot(0);
++}
++#endif
++
+ int vma_wants_writenotify(struct vm_area_struct *vma);
+ 
+ extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
+@@ -1342,8 +1331,15 @@ static inline int __pud_alloc(struct mm_struct *mm, pgd_t *pgd,
+ {
+ 	return 0;
+ }
++
++static inline int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd,
++						unsigned long address)
++{
++	return 0;
++}
+ #else
+ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
++int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address);
+ #endif
+ 
+ #ifdef __PAGETABLE_PMD_FOLDED
+@@ -1352,8 +1348,15 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud,
+ {
+ 	return 0;
+ }
++
++static inline int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud,
++						unsigned long address)
++{
++	return 0;
++}
+ #else
+ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address);
++int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address);
+ #endif
+ 
+ int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -1371,11 +1374,23 @@ static inline pud_t *pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long a
+ 		NULL: pud_offset(pgd, address);
+ }
+ 
++static inline pud_t *pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
++{
++	return (unlikely(pgd_none(*pgd)) && __pud_alloc_kernel(mm, pgd, address))?
++		NULL: pud_offset(pgd, address);
++}
++
+ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
+ {
+ 	return (unlikely(pud_none(*pud)) && __pmd_alloc(mm, pud, address))?
+ 		NULL: pmd_offset(pud, address);
+ }
++
++static inline pmd_t *pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
++{
++	return (unlikely(pud_none(*pud)) && __pmd_alloc_kernel(mm, pud, address))?
++		NULL: pmd_offset(pud, address);
++}
+ #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
+ 
+ #if USE_SPLIT_PTE_PTLOCKS
+@@ -1765,7 +1780,7 @@ extern int install_special_mapping(struct mm_struct *mm,
+ 				   unsigned long addr, unsigned long len,
+ 				   unsigned long flags, struct page **pages);
+ 
+-extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
++extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long) __intentional_overflow(-1);
+ 
+ extern unsigned long mmap_region(struct file *file, unsigned long addr,
+ 	unsigned long len, vm_flags_t vm_flags, unsigned long pgoff);
+@@ -1773,6 +1788,7 @@ extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
+ 	unsigned long len, unsigned long prot, unsigned long flags,
+ 	unsigned long pgoff, unsigned long *populate);
+ extern int do_munmap(struct mm_struct *, unsigned long, size_t);
++extern int __do_munmap(struct mm_struct *, unsigned long, size_t);
+ 
+ #ifdef CONFIG_MMU
+ extern int __mm_populate(unsigned long addr, unsigned long len,
+@@ -1801,10 +1817,11 @@ struct vm_unmapped_area_info {
+ 	unsigned long high_limit;
+ 	unsigned long align_mask;
+ 	unsigned long align_offset;
++	unsigned long threadstack_offset;
+ };
+ 
+-extern unsigned long unmapped_area(struct vm_unmapped_area_info *info);
+-extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
++extern unsigned long unmapped_area(const struct vm_unmapped_area_info *info);
++extern unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info);
+ 
+ /*
+  * Search for an unmapped address range.
+@@ -1816,7 +1833,7 @@ extern unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info);
+  * - satisfies (begin_addr & align_mask) == (align_offset & align_mask)
+  */
+ static inline unsigned long
+-vm_unmapped_area(struct vm_unmapped_area_info *info)
++vm_unmapped_area(const struct vm_unmapped_area_info *info)
+ {
+ 	if (!(info->flags & VM_UNMAPPED_AREA_TOPDOWN))
+ 		return unmapped_area(info);
+@@ -1876,6 +1893,10 @@ extern struct vm_area_struct * find_vma(struct mm_struct * mm, unsigned long add
+ extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr,
+ 					     struct vm_area_struct **pprev);
+ 
++extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma);
++extern __must_check long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma);
++extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl);
++
+ /* Look up the first VMA which intersects the interval start_addr..end_addr-1,
+    NULL if none.  Assume start_addr < end_addr. */
+ static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr)
+@@ -1904,15 +1925,6 @@ static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
+ 	return vma;
+ }
+ 
+-#ifdef CONFIG_MMU
+-pgprot_t vm_get_page_prot(unsigned long vm_flags);
+-#else
+-static inline pgprot_t vm_get_page_prot(unsigned long vm_flags)
+-{
+-	return __pgprot(0);
+-}
+-#endif
+-
+ #ifdef CONFIG_NUMA_BALANCING
+ unsigned long change_prot_numa(struct vm_area_struct *vma,
+ 			unsigned long start, unsigned long end);
+@@ -1964,6 +1976,11 @@ void vm_stat_account(struct mm_struct *, unsigned long, struct file *, long);
+ static inline void vm_stat_account(struct mm_struct *mm,
+ 			unsigned long flags, struct file *file, long pages)
+ {
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
++#endif
++
+ 	mm->total_vm += pages;
+ }
+ #endif /* CONFIG_PROC_FS */
+@@ -2045,7 +2062,7 @@ extern int unpoison_memory(unsigned long pfn);
+ extern int sysctl_memory_failure_early_kill;
+ extern int sysctl_memory_failure_recovery;
+ extern void shake_page(struct page *p, int access);
+-extern atomic_long_t num_poisoned_pages;
++extern atomic_long_unchecked_t num_poisoned_pages;
+ extern int soft_offline_page(struct page *page, int flags);
+ 
+ #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS)
+@@ -2080,5 +2097,11 @@ void __init setup_nr_node_ids(void);
+ static inline void setup_nr_node_ids(void) {}
+ #endif
+ 
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot);
++#else
++static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {}
++#endif
++
+ #endif /* __KERNEL__ */
+ #endif /* _LINUX_MM_H */
+diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
+index 2b58d19..6378966 100644
+--- a/include/linux/mm_types.h
++++ b/include/linux/mm_types.h
+@@ -307,7 +307,9 @@ struct vm_area_struct {
+ #ifdef CONFIG_NUMA
+ 	struct mempolicy *vm_policy;	/* NUMA policy for the VMA */
+ #endif
+-};
++
++	struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */
++} __randomize_layout;
+ 
+ struct core_thread {
+ 	struct task_struct *task;
+@@ -453,7 +455,25 @@ struct mm_struct {
+ 	bool tlb_flush_pending;
+ #endif
+ 	struct uprobes_state uprobes_state;
+-};
++
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++	unsigned long pax_flags;
++#endif
++
++#ifdef CONFIG_PAX_DLRESOLVE
++	unsigned long call_dl_resolve;
++#endif
++
++#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT)
++	unsigned long call_syscall;
++#endif
++
++#ifdef CONFIG_PAX_ASLR
++	unsigned long delta_mmap;		/* randomized offset */
++	unsigned long delta_stack;		/* randomized offset */
++#endif
++
++} __randomize_layout;
+ 
+ static inline void mm_init_cpumask(struct mm_struct *mm)
+ {
+diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
+index 87079fc..7724b1f 100644
+--- a/include/linux/mmc/core.h
++++ b/include/linux/mmc/core.h
+@@ -79,7 +79,7 @@ struct mmc_command {
+ #define mmc_cmd_type(cmd)	((cmd)->flags & MMC_CMD_MASK)
+ 
+ 	unsigned int		retries;	/* max number of retries */
+-	unsigned int		error;		/* command error */
++	int			error;		/* command error */
+ 
+ /*
+  * Standard errno values are used for errors, but some have specific
+diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
+index c5d5278..f0b68c8 100644
+--- a/include/linux/mmiotrace.h
++++ b/include/linux/mmiotrace.h
+@@ -46,7 +46,7 @@ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr);
+ /* Called from ioremap.c */
+ extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
+ 							void __iomem *addr);
+-extern void mmiotrace_iounmap(volatile void __iomem *addr);
++extern void mmiotrace_iounmap(const volatile void __iomem *addr);
+ 
+ /* For anyone to insert markers. Remember trailing newline. */
+ extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
+@@ -66,7 +66,7 @@ static inline void mmiotrace_ioremap(resource_size_t offset,
+ {
+ }
+ 
+-static inline void mmiotrace_iounmap(volatile void __iomem *addr)
++static inline void mmiotrace_iounmap(const volatile void __iomem *addr)
+ {
+ }
+ 
+diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
+index ac819bf..838afec 100644
+--- a/include/linux/mmzone.h
++++ b/include/linux/mmzone.h
+@@ -513,7 +513,7 @@ struct zone {
+ 
+ 	ZONE_PADDING(_pad3_)
+ 	/* Zone statistics */
+-	atomic_long_t		vm_stat[NR_VM_ZONE_STAT_ITEMS];
++	atomic_long_unchecked_t	vm_stat[NR_VM_ZONE_STAT_ITEMS];
+ } ____cacheline_internodealigned_in_smp;
+ 
+ typedef enum {
+diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
+index 45e9214..4a547ac 100644
+--- a/include/linux/mod_devicetable.h
++++ b/include/linux/mod_devicetable.h
+@@ -139,7 +139,7 @@ struct usb_device_id {
+ #define USB_DEVICE_ID_MATCH_INT_PROTOCOL	0x0200
+ #define USB_DEVICE_ID_MATCH_INT_NUMBER		0x0400
+ 
+-#define HID_ANY_ID				(~0)
++#define HID_ANY_ID				(~0U)
+ #define HID_BUS_ANY				0xffff
+ #define HID_GROUP_ANY				0x0000
+ 
+@@ -467,7 +467,7 @@ struct dmi_system_id {
+ 	const char *ident;
+ 	struct dmi_strmatch matches[4];
+ 	void *driver_data;
+-};
++} __do_const;
+ /*
+  * struct dmi_device_id appears during expansion of
+  * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
+diff --git a/include/linux/module.h b/include/linux/module.h
+index eaf60ff..641979a 100644
+--- a/include/linux/module.h
++++ b/include/linux/module.h
+@@ -17,9 +17,11 @@
+ #include <linux/moduleparam.h>
+ #include <linux/tracepoint.h>
+ #include <linux/export.h>
++#include <linux/fs.h>
+ 
+ #include <linux/percpu.h>
+ #include <asm/module.h>
++#include <asm/pgtable.h>
+ 
+ /* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
+ #define MODULE_SIG_STRING "~Module signature appended~\n"
+@@ -42,7 +44,7 @@ struct module_kobject {
+ 	struct kobject *drivers_dir;
+ 	struct module_param_attrs *mp;
+ 	struct completion *kobj_completion;
+-};
++} __randomize_layout;
+ 
+ struct module_attribute {
+ 	struct attribute attr;
+@@ -54,12 +56,13 @@ struct module_attribute {
+ 	int (*test)(struct module *);
+ 	void (*free)(struct module *);
+ };
++typedef struct module_attribute __no_const module_attribute_no_const;
+ 
+ struct module_version_attribute {
+ 	struct module_attribute mattr;
+ 	const char *module_name;
+ 	const char *version;
+-} __attribute__ ((__aligned__(sizeof(void *))));
++} __do_const __attribute__ ((__aligned__(sizeof(void *))));
+ 
+ extern ssize_t __modver_version_show(struct module_attribute *,
+ 				     struct module_kobject *, char *);
+@@ -238,7 +241,7 @@ struct module {
+ 
+ 	/* Sysfs stuff. */
+ 	struct module_kobject mkobj;
+-	struct module_attribute *modinfo_attrs;
++	module_attribute_no_const *modinfo_attrs;
+ 	const char *version;
+ 	const char *srcversion;
+ 	struct kobject *holders_dir;
+@@ -287,19 +290,16 @@ struct module {
+ 	int (*init)(void);
+ 
+ 	/* If this is non-NULL, vfree after init() returns */
+-	void *module_init;
++	void *module_init_rx, *module_init_rw;
+ 
+ 	/* Here is the actual code + data, vfree'd on unload. */
+-	void *module_core;
++	void *module_core_rx, *module_core_rw;
+ 
+ 	/* Here are the sizes of the init and core sections */
+-	unsigned int init_size, core_size;
++	unsigned int init_size_rw, core_size_rw;
+ 
+ 	/* The size of the executable code in each section.  */
+-	unsigned int init_text_size, core_text_size;
+-
+-	/* Size of RO sections of the module (text+rodata) */
+-	unsigned int init_ro_size, core_ro_size;
++	unsigned int init_size_rx, core_size_rx;
+ 
+ 	/* Arch-specific module values */
+ 	struct mod_arch_specific arch;
+@@ -355,6 +355,10 @@ struct module {
+ #ifdef CONFIG_EVENT_TRACING
+ 	struct ftrace_event_call **trace_events;
+ 	unsigned int num_trace_events;
++	struct file_operations trace_id;
++	struct file_operations trace_enable;
++	struct file_operations trace_format;
++	struct file_operations trace_filter;
+ #endif
+ #ifdef CONFIG_FTRACE_MCOUNT_RECORD
+ 	unsigned int num_ftrace_callsites;
+@@ -378,7 +382,7 @@ struct module {
+ 	ctor_fn_t *ctors;
+ 	unsigned int num_ctors;
+ #endif
+-};
++} __randomize_layout;
+ #ifndef MODULE_ARCH_INIT
+ #define MODULE_ARCH_INIT {}
+ #endif
+@@ -399,16 +403,46 @@ bool is_module_address(unsigned long addr);
+ bool is_module_percpu_address(unsigned long addr);
+ bool is_module_text_address(unsigned long addr);
+ 
++static inline int within_module_range(unsigned long addr, void *start, unsigned long size)
++{
++
++#ifdef CONFIG_PAX_KERNEXEC
++	if (ktla_ktva(addr) >= (unsigned long)start &&
++	    ktla_ktva(addr) < (unsigned long)start + size)
++		return 1;
++#endif
++
++	return ((void *)addr >= start && (void *)addr < start + size);
++}
++
++static inline int within_module_core_rx(unsigned long addr, const struct module *mod)
++{
++	return within_module_range(addr, mod->module_core_rx, mod->core_size_rx);
++}
++
++static inline int within_module_core_rw(unsigned long addr, const struct module *mod)
++{
++	return within_module_range(addr, mod->module_core_rw, mod->core_size_rw);
++}
++
++static inline int within_module_init_rx(unsigned long addr, const struct module *mod)
++{
++	return within_module_range(addr, mod->module_init_rx, mod->init_size_rx);
++}
++
++static inline int within_module_init_rw(unsigned long addr, const struct module *mod)
++{
++	return within_module_range(addr, mod->module_init_rw, mod->init_size_rw);
++}
++
+ static inline int within_module_core(unsigned long addr, const struct module *mod)
+ {
+-	return (unsigned long)mod->module_core <= addr &&
+-	       addr < (unsigned long)mod->module_core + mod->core_size;
++	return within_module_core_rx(addr, mod) || within_module_core_rw(addr, mod);
+ }
+ 
+ static inline int within_module_init(unsigned long addr, const struct module *mod)
+ {
+-	return (unsigned long)mod->module_init <= addr &&
+-	       addr < (unsigned long)mod->module_init + mod->init_size;
++	return within_module_init_rx(addr, mod) || within_module_init_rw(addr, mod);
+ }
+ 
+ /* Search for module by name: must hold module_mutex. */
+diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
+index 560ca53..ef621ef 100644
+--- a/include/linux/moduleloader.h
++++ b/include/linux/moduleloader.h
+@@ -25,9 +25,21 @@ unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
+    sections.  Returns NULL on failure. */
+ void *module_alloc(unsigned long size);
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++void *module_alloc_exec(unsigned long size);
++#else
++#define module_alloc_exec(x) module_alloc(x)
++#endif
++
+ /* Free memory returned from module_alloc. */
+ void module_free(struct module *mod, void *module_region);
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++void module_free_exec(struct module *mod, void *module_region);
++#else
++#define module_free_exec(x, y) module_free((x), (y))
++#endif
++
+ /*
+  * Apply the given relocation to the (simplified) ELF.  Return -error
+  * or 0.
+@@ -45,7 +57,9 @@ static inline int apply_relocate(Elf_Shdr *sechdrs,
+ 				 unsigned int relsec,
+ 				 struct module *me)
+ {
++#ifdef CONFIG_MODULES
+ 	printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
++#endif
+ 	return -ENOEXEC;
+ }
+ #endif
+@@ -67,7 +81,9 @@ static inline int apply_relocate_add(Elf_Shdr *sechdrs,
+ 				     unsigned int relsec,
+ 				     struct module *me)
+ {
++#ifdef CONFIG_MODULES
+ 	printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name);
++#endif
+ 	return -ENOEXEC;
+ }
+ #endif
+diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
+index c3eb102..073c4a6 100644
+--- a/include/linux/moduleparam.h
++++ b/include/linux/moduleparam.h
+@@ -295,7 +295,7 @@ static inline void __kernel_param_unlock(void)
+  * @len is usually just sizeof(string).
+  */
+ #define module_param_string(name, string, len, perm)			\
+-	static const struct kparam_string __param_string_##name		\
++	static const struct kparam_string __param_string_##name __used	\
+ 		= { len, string };					\
+ 	__module_param_call(MODULE_PARAM_PREFIX, name,			\
+ 			    &param_ops_string,				\
+@@ -434,7 +434,7 @@ extern int param_set_bint(const char *val, const struct kernel_param *kp);
+  */
+ #define module_param_array_named(name, array, type, nump, perm)		\
+ 	param_check_##type(name, &(array)[0]);				\
+-	static const struct kparam_array __param_arr_##name		\
++	static const struct kparam_array __param_arr_##name __used	\
+ 	= { .max = ARRAY_SIZE(array), .num = nump,                      \
+ 	    .ops = &param_ops_##type,					\
+ 	    .elemsize = sizeof(array[0]), .elem = array };		\
+diff --git a/include/linux/mount.h b/include/linux/mount.h
+index b0c1e65..fd6baf1 100644
+--- a/include/linux/mount.h
++++ b/include/linux/mount.h
+@@ -66,7 +66,7 @@ struct vfsmount {
+ 	struct dentry *mnt_root;	/* root of the mounted tree */
+ 	struct super_block *mnt_sb;	/* pointer to superblock */
+ 	int mnt_flags;
+-};
++} __randomize_layout;
+ 
+ struct file; /* forward dec */
+ 
+diff --git a/include/linux/namei.h b/include/linux/namei.h
+index 492de72..1bddcd4 100644
+--- a/include/linux/namei.h
++++ b/include/linux/namei.h
+@@ -19,7 +19,7 @@ struct nameidata {
+ 	unsigned	seq, m_seq;
+ 	int		last_type;
+ 	unsigned	depth;
+-	char *saved_names[MAX_NESTED_LINKS + 1];
++	const char *saved_names[MAX_NESTED_LINKS + 1];
+ };
+ 
+ /*
+@@ -83,12 +83,12 @@ extern void unlock_rename(struct dentry *, struct dentry *);
+ 
+ extern void nd_jump_link(struct nameidata *nd, struct path *path);
+ 
+-static inline void nd_set_link(struct nameidata *nd, char *path)
++static inline void nd_set_link(struct nameidata *nd, const char *path)
+ {
+ 	nd->saved_names[nd->depth] = path;
+ }
+ 
+-static inline char *nd_get_link(struct nameidata *nd)
++static inline const char *nd_get_link(const struct nameidata *nd)
+ {
+ 	return nd->saved_names[nd->depth];
+ }
+diff --git a/include/linux/net.h b/include/linux/net.h
+index 17d8339..81656c0 100644
+--- a/include/linux/net.h
++++ b/include/linux/net.h
+@@ -192,7 +192,7 @@ struct net_proto_family {
+ 	int		(*create)(struct net *net, struct socket *sock,
+ 				  int protocol, int kern);
+ 	struct module	*owner;
+-};
++} __do_const;
+ 
+ struct iovec;
+ struct kvec;
+diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
+index bf46cc8..2af7ba8 100644
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1147,6 +1147,7 @@ struct net_device_ops {
+ 							void *priv);
+ 	int			(*ndo_get_lock_subclass)(struct net_device *dev);
+ };
++typedef struct net_device_ops __no_const net_device_ops_no_const;
+ 
+ /*
+  *	The DEVICE structure.
+@@ -1229,7 +1230,7 @@ struct net_device {
+ 	int			iflink;
+ 
+ 	struct net_device_stats	stats;
+-	atomic_long_t		rx_dropped; /* dropped packets by core network
++	atomic_long_unchecked_t	rx_dropped; /* dropped packets by core network
+ 					     * Do not use this in drivers.
+ 					     */
+ 
+diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
+index 2077489..a15e561 100644
+--- a/include/linux/netfilter.h
++++ b/include/linux/netfilter.h
+@@ -84,7 +84,7 @@ struct nf_sockopt_ops {
+ #endif
+ 	/* Use the module struct to lock set/get code in place */
+ 	struct module *owner;
+-};
++} __do_const;
+ 
+ /* Function to register/unregister hook points. */
+ int nf_register_hook(struct nf_hook_ops *reg);
+diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
+index 28c7436..2d6156a 100644
+--- a/include/linux/netfilter/nfnetlink.h
++++ b/include/linux/netfilter/nfnetlink.h
+@@ -19,7 +19,7 @@ struct nfnl_callback {
+ 			  const struct nlattr * const cda[]);
+ 	const struct nla_policy *policy;	/* netlink attribute policy */
+ 	const u_int16_t attr_count;		/* number of nlattr's */
+-};
++} __do_const;
+ 
+ struct nfnetlink_subsystem {
+ 	const char *name;
+diff --git a/include/linux/netfilter/xt_gradm.h b/include/linux/netfilter/xt_gradm.h
+new file mode 100644
+index 0000000..33f4af8
+--- /dev/null
++++ b/include/linux/netfilter/xt_gradm.h
+@@ -0,0 +1,9 @@
++#ifndef _LINUX_NETFILTER_XT_GRADM_H
++#define _LINUX_NETFILTER_XT_GRADM_H 1
++
++struct xt_gradm_mtinfo {
++	__u16 flags;
++	__u16 invflags;
++};
++
++#endif
+diff --git a/include/linux/nls.h b/include/linux/nls.h
+index 520681b..2b7fabb 100644
+--- a/include/linux/nls.h
++++ b/include/linux/nls.h
+@@ -31,7 +31,7 @@ struct nls_table {
+ 	const unsigned char *charset2upper;
+ 	struct module *owner;
+ 	struct nls_table *next;
+-};
++} __do_const;
+ 
+ /* this value hold the maximum octet of charset */
+ #define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
+@@ -46,7 +46,7 @@ enum utf16_endian {
+ /* nls_base.c */
+ extern int __register_nls(struct nls_table *, struct module *);
+ extern int unregister_nls(struct nls_table *);
+-extern struct nls_table *load_nls(char *);
++extern struct nls_table *load_nls(const char *);
+ extern void unload_nls(struct nls_table *);
+ extern struct nls_table *load_nls_default(void);
+ #define register_nls(nls) __register_nls((nls), THIS_MODULE)
+diff --git a/include/linux/notifier.h b/include/linux/notifier.h
+index d14a4c3..a078786 100644
+--- a/include/linux/notifier.h
++++ b/include/linux/notifier.h
+@@ -54,7 +54,8 @@ struct notifier_block {
+ 	notifier_fn_t notifier_call;
+ 	struct notifier_block __rcu *next;
+ 	int priority;
+-};
++} __do_const;
++typedef struct notifier_block __no_const notifier_block_no_const;
+ 
+ struct atomic_notifier_head {
+ 	spinlock_t lock;
+diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
+index b2a0f15..4d7da32 100644
+--- a/include/linux/oprofile.h
++++ b/include/linux/oprofile.h
+@@ -138,9 +138,9 @@ int oprofilefs_create_ulong(struct dentry * root,
+ int oprofilefs_create_ro_ulong(struct dentry * root,
+ 	char const * name, ulong * val);
+  
+-/** Create a file for read-only access to an atomic_t. */
++/** Create a file for read-only access to an atomic_unchecked_t. */
+ int oprofilefs_create_ro_atomic(struct dentry * root,
+-	char const * name, atomic_t * val);
++	char const * name, atomic_unchecked_t * val);
+  
+ /** create a directory */
+ struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name);
+diff --git a/include/linux/padata.h b/include/linux/padata.h
+index 4386946..f50c615 100644
+--- a/include/linux/padata.h
++++ b/include/linux/padata.h
+@@ -129,7 +129,7 @@ struct parallel_data {
+ 	struct padata_serial_queue	__percpu *squeue;
+ 	atomic_t			reorder_objects;
+ 	atomic_t			refcnt;
+-	atomic_t			seq_nr;
++	atomic_unchecked_t		seq_nr;
+ 	struct padata_cpumask		cpumask;
+ 	spinlock_t                      lock ____cacheline_aligned;
+ 	unsigned int			processed;
+diff --git a/include/linux/path.h b/include/linux/path.h
+index d137218..be0c176 100644
+--- a/include/linux/path.h
++++ b/include/linux/path.h
+@@ -1,13 +1,15 @@
+ #ifndef _LINUX_PATH_H
+ #define _LINUX_PATH_H
+ 
++#include <linux/compiler.h>
++
+ struct dentry;
+ struct vfsmount;
+ 
+ struct path {
+ 	struct vfsmount *mnt;
+ 	struct dentry *dentry;
+-};
++} __randomize_layout;
+ 
+ extern void path_get(const struct path *);
+ extern void path_put(const struct path *);
+diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
+index 5f2e559..7d59314 100644
+--- a/include/linux/pci_hotplug.h
++++ b/include/linux/pci_hotplug.h
+@@ -71,7 +71,8 @@ struct hotplug_slot_ops {
+ 	int (*get_latch_status)		(struct hotplug_slot *slot, u8 *value);
+ 	int (*get_adapter_status)	(struct hotplug_slot *slot, u8 *value);
+ 	int (*reset_slot)		(struct hotplug_slot *slot, int probe);
+-};
++} __do_const;
++typedef struct hotplug_slot_ops __no_const hotplug_slot_ops_no_const;
+ 
+ /**
+  * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
+diff --git a/include/linux/percpu.h b/include/linux/percpu.h
+index e3817d2..74af65b 100644
+--- a/include/linux/percpu.h
++++ b/include/linux/percpu.h
+@@ -59,7 +59,7 @@
+  * preallocate for this.  Keep PERCPU_DYNAMIC_RESERVE equal to or
+  * larger than PERCPU_DYNAMIC_EARLY_SIZE.
+  */
+-#define PERCPU_DYNAMIC_EARLY_SLOTS	128
++#define PERCPU_DYNAMIC_EARLY_SLOTS	256
+ #define PERCPU_DYNAMIC_EARLY_SIZE	(12 << 10)
+ 
+ /*
+diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
+index e56b07f..aef789b 100644
+--- a/include/linux/perf_event.h
++++ b/include/linux/perf_event.h
+@@ -328,8 +328,8 @@ struct perf_event {
+ 
+ 	enum perf_event_active_state	state;
+ 	unsigned int			attach_state;
+-	local64_t			count;
+-	atomic64_t			child_count;
++	local64_t			count; /* PaX: fix it one day */
++	atomic64_unchecked_t		child_count;
+ 
+ 	/*
+ 	 * These are the total time in nanoseconds that the event
+@@ -380,8 +380,8 @@ struct perf_event {
+ 	 * These accumulate total time (in nanoseconds) that children
+ 	 * events have been enabled and running, respectively.
+ 	 */
+-	atomic64_t			child_total_time_enabled;
+-	atomic64_t			child_total_time_running;
++	atomic64_unchecked_t		child_total_time_enabled;
++	atomic64_unchecked_t		child_total_time_running;
+ 
+ 	/*
+ 	 * Protect attach/detach and child_list:
+@@ -708,7 +708,7 @@ static inline void perf_callchain_store(struct perf_callchain_entry *entry, u64
+ 		entry->ip[entry->nr++] = ip;
+ }
+ 
+-extern int sysctl_perf_event_paranoid;
++extern int sysctl_perf_event_legitimately_concerned;
+ extern int sysctl_perf_event_mlock;
+ extern int sysctl_perf_event_sample_rate;
+ extern int sysctl_perf_cpu_time_max_percent;
+@@ -723,19 +723,24 @@ extern int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
+ 		loff_t *ppos);
+ 
+ 
++static inline bool perf_paranoid_any(void)
++{
++	return sysctl_perf_event_legitimately_concerned > 2;
++}
++
+ static inline bool perf_paranoid_tracepoint_raw(void)
+ {
+-	return sysctl_perf_event_paranoid > -1;
++	return sysctl_perf_event_legitimately_concerned > -1;
+ }
+ 
+ static inline bool perf_paranoid_cpu(void)
+ {
+-	return sysctl_perf_event_paranoid > 0;
++	return sysctl_perf_event_legitimately_concerned > 0;
+ }
+ 
+ static inline bool perf_paranoid_kernel(void)
+ {
+-	return sysctl_perf_event_paranoid > 1;
++	return sysctl_perf_event_legitimately_concerned > 1;
+ }
+ 
+ extern void perf_event_init(void);
+@@ -851,7 +856,7 @@ struct perf_pmu_events_attr {
+ 	struct device_attribute attr;
+ 	u64 id;
+ 	const char *event_str;
+-};
++} __do_const;
+ 
+ #define PMU_EVENT_ATTR(_name, _var, _id, _show)				\
+ static struct perf_pmu_events_attr _var = {				\
+diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
+index 7246ef3..1539ea4 100644
+--- a/include/linux/pid_namespace.h
++++ b/include/linux/pid_namespace.h
+@@ -43,7 +43,7 @@ struct pid_namespace {
+ 	int hide_pid;
+ 	int reboot;	/* group exit code if this pidns was rebooted */
+ 	unsigned int proc_inum;
+-};
++} __randomize_layout;
+ 
+ extern struct pid_namespace init_pid_ns;
+ 
+diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
+index ab57526..94598804 100644
+--- a/include/linux/pipe_fs_i.h
++++ b/include/linux/pipe_fs_i.h
+@@ -47,10 +47,10 @@ struct pipe_inode_info {
+ 	struct mutex mutex;
+ 	wait_queue_head_t wait;
+ 	unsigned int nrbufs, curbuf, buffers;
+-	unsigned int readers;
+-	unsigned int writers;
+-	unsigned int files;
+-	unsigned int waiting_writers;
++	atomic_t readers;
++	atomic_t writers;
++	atomic_t files;
++	atomic_t waiting_writers;
+ 	unsigned int r_counter;
+ 	unsigned int w_counter;
+ 	struct page *tmp_page;
+diff --git a/include/linux/pm.h b/include/linux/pm.h
+index 8c6583a..febb84c 100644
+--- a/include/linux/pm.h
++++ b/include/linux/pm.h
+@@ -597,6 +597,7 @@ extern int dev_pm_put_subsys_data(struct device *dev);
+ struct dev_pm_domain {
+ 	struct dev_pm_ops	ops;
+ };
++typedef struct dev_pm_domain __no_const dev_pm_domain_no_const;
+ 
+ /*
+  * The PM_EVENT_ messages are also used by drivers implementing the legacy
+diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
+index 7c1d252..0e7061d 100644
+--- a/include/linux/pm_domain.h
++++ b/include/linux/pm_domain.h
+@@ -44,11 +44,11 @@ struct gpd_dev_ops {
+ 	int (*thaw_early)(struct device *dev);
+ 	int (*thaw)(struct device *dev);
+ 	bool (*active_wakeup)(struct device *dev);
+-};
++} __no_const;
+ 
+ struct gpd_cpu_data {
+ 	unsigned int saved_exit_latency;
+-	struct cpuidle_state *idle_state;
++	cpuidle_state_no_const *idle_state;
+ };
+ 
+ struct generic_pm_domain {
+diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
+index 16c9a62..f9f0838 100644
+--- a/include/linux/pm_runtime.h
++++ b/include/linux/pm_runtime.h
+@@ -109,7 +109,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
+ 
+ static inline void pm_runtime_mark_last_busy(struct device *dev)
+ {
+-	ACCESS_ONCE(dev->power.last_busy) = jiffies;
++	ACCESS_ONCE_RW(dev->power.last_busy) = jiffies;
+ }
+ 
+ #else /* !CONFIG_PM_RUNTIME */
+diff --git a/include/linux/pnp.h b/include/linux/pnp.h
+index 195aafc..49a7bc2 100644
+--- a/include/linux/pnp.h
++++ b/include/linux/pnp.h
+@@ -297,7 +297,7 @@ static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
+ struct pnp_fixup {
+ 	char id[7];
+ 	void (*quirk_function) (struct pnp_dev * dev);	/* fixup function */
+-};
++} __do_const;
+ 
+ /* config parameters */
+ #define PNP_CONFIG_NORMAL	0x0001
+diff --git a/include/linux/poison.h b/include/linux/poison.h
+index 2110a81..13a11bb 100644
+--- a/include/linux/poison.h
++++ b/include/linux/poison.h
+@@ -19,8 +19,8 @@
+  * under normal circumstances, used to verify that nobody uses
+  * non-initialized list entries.
+  */
+-#define LIST_POISON1  ((void *) 0x00100100 + POISON_POINTER_DELTA)
+-#define LIST_POISON2  ((void *) 0x00200200 + POISON_POINTER_DELTA)
++#define LIST_POISON1  ((void *) (long)0xFFFFFF01)
++#define LIST_POISON2  ((void *) (long)0xFFFFFF02)
+ 
+ /********** include/linux/timer.h **********/
+ /*
+diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
+index d8b187c3..9a9257a 100644
+--- a/include/linux/power/smartreflex.h
++++ b/include/linux/power/smartreflex.h
+@@ -238,7 +238,7 @@ struct omap_sr_class_data {
+ 	int (*notify)(struct omap_sr *sr, u32 status);
+ 	u8 notify_flags;
+ 	u8 class_type;
+-};
++} __do_const;
+ 
+ /**
+  * struct omap_sr_nvalue_table	- Smartreflex n-target value info
+diff --git a/include/linux/ppp-comp.h b/include/linux/ppp-comp.h
+index 4ea1d37..80f4b33 100644
+--- a/include/linux/ppp-comp.h
++++ b/include/linux/ppp-comp.h
+@@ -84,7 +84,7 @@ struct compressor {
+ 	struct module *owner;
+ 	/* Extra skb space needed by the compressor algorithm */
+ 	unsigned int comp_extra;
+-};
++} __do_const;
+ 
+ /*
+  * The return value from decompress routine is the length of the
+diff --git a/include/linux/preempt.h b/include/linux/preempt.h
+index 1841b58..fbeebf8 100644
+--- a/include/linux/preempt.h
++++ b/include/linux/preempt.h
+@@ -29,11 +29,16 @@ extern void preempt_count_sub(int val);
+ #define preempt_count_dec_and_test() __preempt_count_dec_and_test()
+ #endif
+ 
++#define raw_preempt_count_add(val)	__preempt_count_add(val)
++#define raw_preempt_count_sub(val)	__preempt_count_sub(val)
++
+ #define __preempt_count_inc() __preempt_count_add(1)
+ #define __preempt_count_dec() __preempt_count_sub(1)
+ 
+ #define preempt_count_inc() preempt_count_add(1)
++#define raw_preempt_count_inc() raw_preempt_count_add(1)
+ #define preempt_count_dec() preempt_count_sub(1)
++#define raw_preempt_count_dec() raw_preempt_count_sub(1)
+ 
+ #ifdef CONFIG_PREEMPT_COUNT
+ 
+@@ -43,6 +48,12 @@ do { \
+ 	barrier(); \
+ } while (0)
+ 
++#define raw_preempt_disable() \
++do { \
++	raw_preempt_count_inc(); \
++	barrier(); \
++} while (0)
++
+ #define sched_preempt_enable_no_resched() \
+ do { \
+ 	barrier(); \
+@@ -51,6 +62,12 @@ do { \
+ 
+ #define preempt_enable_no_resched() sched_preempt_enable_no_resched()
+ 
++#define raw_preempt_enable_no_resched() \
++do { \
++	barrier(); \
++	raw_preempt_count_dec(); \
++} while (0)
++
+ #ifdef CONFIG_PREEMPT
+ #define preempt_enable() \
+ do { \
+@@ -115,8 +132,10 @@ do { \
+  * region.
+  */
+ #define preempt_disable()			barrier()
++#define raw_preempt_disable()			barrier()
+ #define sched_preempt_enable_no_resched()	barrier()
+ #define preempt_enable_no_resched()		barrier()
++#define raw_preempt_enable_no_resched()		barrier()
+ #define preempt_enable()			barrier()
+ #define preempt_check_resched()			do { } while (0)
+ 
+@@ -130,11 +149,13 @@ do { \
+ /*
+  * Modules have no business playing preemption tricks.
+  */
++#ifndef CONFIG_PAX_KERNEXEC
+ #undef sched_preempt_enable_no_resched
+ #undef preempt_enable_no_resched
+ #undef preempt_enable_no_resched_notrace
+ #undef preempt_check_resched
+ #endif
++#endif
+ 
+ #define preempt_set_need_resched() \
+ do { \
+diff --git a/include/linux/printk.h b/include/linux/printk.h
+index cbf094f..86007b7 100644
+--- a/include/linux/printk.h
++++ b/include/linux/printk.h
+@@ -114,6 +114,8 @@ static inline __printf(1, 2) __cold
+ void early_printk(const char *s, ...) { }
+ #endif
+ 
++extern int kptr_restrict;
++
+ #ifdef CONFIG_PRINTK
+ asmlinkage __printf(5, 0)
+ int vprintk_emit(int facility, int level,
+@@ -148,7 +150,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
+ 
+ extern int printk_delay_msec;
+ extern int dmesg_restrict;
+-extern int kptr_restrict;
+ 
+ extern void wake_up_klogd(void);
+ 
+diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
+index 608e60a..bbcb1a0 100644
+--- a/include/linux/proc_fs.h
++++ b/include/linux/proc_fs.h
+@@ -17,8 +17,11 @@ extern void proc_flush_task(struct task_struct *);
+ extern struct proc_dir_entry *proc_symlink(const char *,
+ 		struct proc_dir_entry *, const char *);
+ extern struct proc_dir_entry *proc_mkdir(const char *, struct proc_dir_entry *);
++extern struct proc_dir_entry *proc_mkdir_restrict(const char *, struct proc_dir_entry *);
+ extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
+ 					      struct proc_dir_entry *, void *);
++extern struct proc_dir_entry *proc_mkdir_data_restrict(const char *, umode_t,
++					      struct proc_dir_entry *, void *);
+ extern struct proc_dir_entry *proc_mkdir_mode(const char *, umode_t,
+ 					      struct proc_dir_entry *);
+  
+@@ -34,6 +37,19 @@ static inline struct proc_dir_entry *proc_create(
+ 	return proc_create_data(name, mode, parent, proc_fops, NULL);
+ }
+ 
++static inline struct proc_dir_entry *proc_create_grsec(const char *name, umode_t mode,
++	struct proc_dir_entry *parent, const struct file_operations *proc_fops)
++{
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL);
++#else
++	return proc_create_data(name, mode, parent, proc_fops, NULL);
++#endif
++}
++
++
+ extern void proc_set_size(struct proc_dir_entry *, loff_t);
+ extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
+ extern void *PDE_DATA(const struct inode *);
+@@ -73,7 +89,7 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
+ static inline struct proc_dir_entry *proc_net_mkdir(
+ 	struct net *net, const char *name, struct proc_dir_entry *parent)
+ {
+-	return proc_mkdir_data(name, 0, parent, net);
++	return proc_mkdir_data_restrict(name, 0, parent, net);
+ }
+ 
+ #endif /* _LINUX_PROC_FS_H */
+diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
+index 34a1e10..70f6bde 100644
+--- a/include/linux/proc_ns.h
++++ b/include/linux/proc_ns.h
+@@ -14,7 +14,7 @@ struct proc_ns_operations {
+ 	void (*put)(void *ns);
+ 	int (*install)(struct nsproxy *nsproxy, void *ns);
+ 	unsigned int (*inum)(void *ns);
+-};
++} __do_const __randomize_layout;
+ 
+ struct proc_ns {
+ 	void *ns;
+diff --git a/include/linux/quota.h b/include/linux/quota.h
+index cc7494a..1e27036 100644
+--- a/include/linux/quota.h
++++ b/include/linux/quota.h
+@@ -70,7 +70,7 @@ struct kqid {			/* Type in which we store the quota identifier */
+ 
+ extern bool qid_eq(struct kqid left, struct kqid right);
+ extern bool qid_lt(struct kqid left, struct kqid right);
+-extern qid_t from_kqid(struct user_namespace *to, struct kqid qid);
++extern qid_t from_kqid(struct user_namespace *to, struct kqid qid) __intentional_overflow(-1);
+ extern qid_t from_kqid_munged(struct user_namespace *to, struct kqid qid);
+ extern bool qid_valid(struct kqid qid);
+ 
+diff --git a/include/linux/random.h b/include/linux/random.h
+index 1cfce0e..bf99e0b 100644
+--- a/include/linux/random.h
++++ b/include/linux/random.h
+@@ -9,9 +9,19 @@
+ #include <uapi/linux/random.h>
+ 
+ extern void add_device_randomness(const void *, unsigned int);
++
++static inline void add_latent_entropy(void)
++{
++
++#ifdef LATENT_ENTROPY_PLUGIN
++	add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
++#endif
++
++}
++
+ extern void add_input_randomness(unsigned int type, unsigned int code,
+-				 unsigned int value);
+-extern void add_interrupt_randomness(int irq, int irq_flags);
++				 unsigned int value) __latent_entropy;
++extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy;
+ 
+ extern void get_random_bytes(void *buf, int nbytes);
+ extern void get_random_bytes_arch(void *buf, int nbytes);
+@@ -22,10 +32,10 @@ extern int random_int_secret_init(void);
+ extern const struct file_operations random_fops, urandom_fops;
+ #endif
+ 
+-unsigned int get_random_int(void);
++unsigned int __intentional_overflow(-1) get_random_int(void);
+ unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
+ 
+-u32 prandom_u32(void);
++u32 prandom_u32(void) __intentional_overflow(-1);
+ void prandom_bytes(void *buf, int nbytes);
+ void prandom_seed(u32 seed);
+ void prandom_reseed_late(void);
+@@ -37,6 +47,11 @@ struct rnd_state {
+ u32 prandom_u32_state(struct rnd_state *state);
+ void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
+ 
++static inline unsigned long __intentional_overflow(-1) pax_get_random_long(void)
++{
++	return prandom_u32() + (sizeof(long) > 4 ? (unsigned long)prandom_u32() << 32 : 0);
++}
++
+ /**
+  * prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
+  * @ep_ro: right open interval endpoint
+@@ -49,7 +64,7 @@ void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
+  *
+  * Returns: pseudo-random number in interval [0, ep_ro)
+  */
+-static inline u32 prandom_u32_max(u32 ep_ro)
++static inline u32 __intentional_overflow(-1) prandom_u32_max(u32 ep_ro)
+ {
+ 	return (u32)(((u64) prandom_u32() * ep_ro) >> 32);
+ }
+diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
+index fea49b5..2ac22bb 100644
+--- a/include/linux/rbtree_augmented.h
++++ b/include/linux/rbtree_augmented.h
+@@ -80,7 +80,9 @@ rbname ## _rotate(struct rb_node *rb_old, struct rb_node *rb_new)	\
+ 	old->rbaugmented = rbcompute(old);				\
+ }									\
+ rbstatic const struct rb_augment_callbacks rbname = {			\
+-	rbname ## _propagate, rbname ## _copy, rbname ## _rotate	\
++	.propagate = rbname ## _propagate,				\
++	.copy = rbname ## _copy,					\
++	.rotate = rbname ## _rotate					\
+ };
+ 
+ 
+diff --git a/include/linux/rculist.h b/include/linux/rculist.h
+index dbaf990..52e07b8 100644
+--- a/include/linux/rculist.h
++++ b/include/linux/rculist.h
+@@ -29,8 +29,8 @@
+  */
+ static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
+ {
+-	ACCESS_ONCE(list->next) = list;
+-	ACCESS_ONCE(list->prev) = list;
++	ACCESS_ONCE_RW(list->next) = list;
++	ACCESS_ONCE_RW(list->prev) = list;
+ }
+ 
+ /*
+@@ -59,6 +59,9 @@ void __list_add_rcu(struct list_head *new,
+ 		    struct list_head *prev, struct list_head *next);
+ #endif
+ 
++void __pax_list_add_rcu(struct list_head *new,
++			struct list_head *prev, struct list_head *next);
++
+ /**
+  * list_add_rcu - add a new entry to rcu-protected list
+  * @new: new entry to be added
+@@ -80,6 +83,11 @@ static inline void list_add_rcu(struct list_head *new, struct list_head *head)
+ 	__list_add_rcu(new, head, head->next);
+ }
+ 
++static inline void pax_list_add_rcu(struct list_head *new, struct list_head *head)
++{
++	__pax_list_add_rcu(new, head, head->next);
++}
++
+ /**
+  * list_add_tail_rcu - add a new entry to rcu-protected list
+  * @new: new entry to be added
+@@ -102,6 +110,12 @@ static inline void list_add_tail_rcu(struct list_head *new,
+ 	__list_add_rcu(new, head->prev, head);
+ }
+ 
++static inline void pax_list_add_tail_rcu(struct list_head *new,
++					struct list_head *head)
++{
++	__pax_list_add_rcu(new, head->prev, head);
++}
++
+ /**
+  * list_del_rcu - deletes entry from list without re-initialization
+  * @entry: the element to delete from the list.
+@@ -132,6 +146,8 @@ static inline void list_del_rcu(struct list_head *entry)
+ 	entry->prev = LIST_POISON2;
+ }
+ 
++extern void pax_list_del_rcu(struct list_head *entry);
++
+ /**
+  * hlist_del_init_rcu - deletes entry from hash list with re-initialization
+  * @n: the element to delete from the hash list.
+diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
+index 72bf3a0..853347f 100644
+--- a/include/linux/rcupdate.h
++++ b/include/linux/rcupdate.h
+@@ -588,7 +588,7 @@ static inline void rcu_preempt_sleep_check(void)
+ #define rcu_assign_pointer(p, v) \
+ 	do { \
+ 		smp_wmb(); \
+-		ACCESS_ONCE(p) = RCU_INITIALIZER(v); \
++		ACCESS_ONCE_RW(p) = RCU_INITIALIZER(v); \
+ 	} while (0)
+ 
+ 
+diff --git a/include/linux/reboot.h b/include/linux/reboot.h
+index 9e7db9e..7d4fd72 100644
+--- a/include/linux/reboot.h
++++ b/include/linux/reboot.h
+@@ -44,9 +44,9 @@ extern int unregister_reboot_notifier(struct notifier_block *);
+  */
+ 
+ extern void migrate_to_reboot_cpu(void);
+-extern void machine_restart(char *cmd);
+-extern void machine_halt(void);
+-extern void machine_power_off(void);
++extern void machine_restart(char *cmd) __noreturn;
++extern void machine_halt(void) __noreturn;
++extern void machine_power_off(void) __noreturn;
+ 
+ extern void machine_shutdown(void);
+ struct pt_regs;
+@@ -57,9 +57,9 @@ extern void machine_crash_shutdown(struct pt_regs *);
+  */
+ 
+ extern void kernel_restart_prepare(char *cmd);
+-extern void kernel_restart(char *cmd);
+-extern void kernel_halt(void);
+-extern void kernel_power_off(void);
++extern void kernel_restart(char *cmd) __noreturn;
++extern void kernel_halt(void) __noreturn;
++extern void kernel_power_off(void) __noreturn;
+ 
+ extern int C_A_D; /* for sysctl */
+ void ctrl_alt_del(void);
+@@ -73,7 +73,7 @@ extern int orderly_poweroff(bool force);
+  * Emergency restart, callable from an interrupt handler.
+  */
+ 
+-extern void emergency_restart(void);
++extern void emergency_restart(void) __noreturn;
+ #include <asm/emergency-restart.h>
+ 
+ #endif /* _LINUX_REBOOT_H */
+diff --git a/include/linux/regset.h b/include/linux/regset.h
+index 8e0c9fe..ac4d221 100644
+--- a/include/linux/regset.h
++++ b/include/linux/regset.h
+@@ -161,7 +161,8 @@ struct user_regset {
+ 	unsigned int 			align;
+ 	unsigned int 			bias;
+ 	unsigned int 			core_note_type;
+-};
++} __do_const;
++typedef struct user_regset __no_const user_regset_no_const;
+ 
+ /**
+  * struct user_regset_view - available regsets
+diff --git a/include/linux/relay.h b/include/linux/relay.h
+index d7c8359..818daf5 100644
+--- a/include/linux/relay.h
++++ b/include/linux/relay.h
+@@ -157,7 +157,7 @@ struct rchan_callbacks
+ 	 * The callback should return 0 if successful, negative if not.
+ 	 */
+ 	int (*remove_buf_file)(struct dentry *dentry);
+-};
++} __no_const;
+ 
+ /*
+  * CONFIG_RELAY kernel API, kernel/relay.c
+diff --git a/include/linux/rio.h b/include/linux/rio.h
+index b71d573..2f940bd 100644
+--- a/include/linux/rio.h
++++ b/include/linux/rio.h
+@@ -355,7 +355,7 @@ struct rio_ops {
+ 	int (*map_inb)(struct rio_mport *mport, dma_addr_t lstart,
+ 			u64 rstart, u32 size, u32 flags);
+ 	void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart);
+-};
++} __no_const;
+ 
+ #define RIO_RESOURCE_MEM	0x00000100
+ #define RIO_RESOURCE_DOORBELL	0x00000200
+diff --git a/include/linux/rmap.h b/include/linux/rmap.h
+index b66c211..13d2915 100644
+--- a/include/linux/rmap.h
++++ b/include/linux/rmap.h
+@@ -145,8 +145,8 @@ static inline void anon_vma_unlock_read(struct anon_vma *anon_vma)
+ void anon_vma_init(void);	/* create anon_vma_cachep */
+ int  anon_vma_prepare(struct vm_area_struct *);
+ void unlink_anon_vmas(struct vm_area_struct *);
+-int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
+-int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
++int anon_vma_clone(struct vm_area_struct *, const struct vm_area_struct *);
++int anon_vma_fork(struct vm_area_struct *, const struct vm_area_struct *);
+ 
+ static inline void anon_vma_merge(struct vm_area_struct *vma,
+ 				  struct vm_area_struct *next)
+diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
+index a964f72..b475afb 100644
+--- a/include/linux/scatterlist.h
++++ b/include/linux/scatterlist.h
+@@ -1,6 +1,7 @@
+ #ifndef _LINUX_SCATTERLIST_H
+ #define _LINUX_SCATTERLIST_H
+ 
++#include <linux/sched.h>
+ #include <linux/string.h>
+ #include <linux/bug.h>
+ #include <linux/mm.h>
+@@ -114,6 +115,12 @@ static inline void sg_set_buf(struct scatterlist *sg, const void *buf,
+ #ifdef CONFIG_DEBUG_SG
+ 	BUG_ON(!virt_addr_valid(buf));
+ #endif
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++	if (object_starts_on_stack(buf)) {
++		void *adjbuf = buf - current->stack + current->lowmem_stack;
++		sg_set_page(sg, virt_to_page(adjbuf), buflen, offset_in_page(adjbuf));
++	} else
++#endif
+ 	sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf));
+ }
+ 
+diff --git a/include/linux/sched.h b/include/linux/sched.h
+index 91fe6a3..30088db 100644
+--- a/include/linux/sched.h
++++ b/include/linux/sched.h
+@@ -133,6 +133,7 @@ struct fs_struct;
+ struct perf_event_context;
+ struct blk_plug;
+ struct filename;
++struct linux_binprm;
+ 
+ /*
+  * List of flags we want to share for kernel threads,
+@@ -373,7 +374,7 @@ extern char __sched_text_start[], __sched_text_end[];
+ extern int in_sched_functions(unsigned long addr);
+ 
+ #define	MAX_SCHEDULE_TIMEOUT	LONG_MAX
+-extern signed long schedule_timeout(signed long timeout);
++extern signed long schedule_timeout(signed long timeout) __intentional_overflow(-1);
+ extern signed long schedule_timeout_interruptible(signed long timeout);
+ extern signed long schedule_timeout_killable(signed long timeout);
+ extern signed long schedule_timeout_uninterruptible(signed long timeout);
+@@ -384,6 +385,19 @@ struct nsproxy;
+ struct user_namespace;
+ 
+ #ifdef CONFIG_MMU
++
++#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
++extern unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags);
++#else
++static inline unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
++{
++	return 0;
++}
++#endif
++
++extern bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset);
++extern unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset);
++
+ extern void arch_pick_mmap_layout(struct mm_struct *mm);
+ extern unsigned long
+ arch_get_unmapped_area(struct file *, unsigned long, unsigned long,
+@@ -681,6 +695,17 @@ struct signal_struct {
+ #ifdef CONFIG_TASKSTATS
+ 	struct taskstats *stats;
+ #endif
++
++#ifdef CONFIG_GRKERNSEC
++	u32 curr_ip;
++	u32 saved_ip;
++	u32 gr_saddr;
++	u32 gr_daddr;
++	u16 gr_sport;
++	u16 gr_dport;
++	u8 used_accept:1;
++#endif
++
+ #ifdef CONFIG_AUDIT
+ 	unsigned audit_tty;
+ 	unsigned audit_tty_log_passwd;
+@@ -707,7 +732,7 @@ struct signal_struct {
+ 	struct mutex cred_guard_mutex;	/* guard against foreign influences on
+ 					 * credential calculations
+ 					 * (notably. ptrace) */
+-};
++} __randomize_layout;
+ 
+ /*
+  * Bits in flags field of signal_struct.
+@@ -761,6 +786,14 @@ struct user_struct {
+ 	struct key *session_keyring;	/* UID's default session keyring */
+ #endif
+ 
++#ifdef CONFIG_GRKERNSEC_KERN_LOCKOUT
++	unsigned char kernel_banned;
++#endif
++#ifdef CONFIG_GRKERNSEC_BRUTE
++	unsigned char suid_banned;
++	unsigned long suid_ban_expires;
++#endif
++
+ 	/* Hash table maintenance information */
+ 	struct hlist_node uidhash_node;
+ 	kuid_t uid;
+@@ -768,7 +801,7 @@ struct user_struct {
+ #ifdef CONFIG_PERF_EVENTS
+ 	atomic_long_t locked_vm;
+ #endif
+-};
++} __randomize_layout;
+ 
+ extern int uids_sysfs_init(void);
+ 
+@@ -1168,6 +1201,9 @@ enum perf_event_task_context {
+ struct task_struct {
+ 	volatile long state;	/* -1 unrunnable, 0 runnable, >0 stopped */
+ 	void *stack;
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++	void *lowmem_stack;
++#endif
+ 	atomic_t usage;
+ 	unsigned int flags;	/* per process flags, defined below */
+ 	unsigned int ptrace;
+@@ -1293,8 +1329,8 @@ struct task_struct {
+ 	struct list_head thread_node;
+ 
+ 	struct completion *vfork_done;		/* for vfork() */
+-	int __user *set_child_tid;		/* CLONE_CHILD_SETTID */
+-	int __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
++	pid_t __user *set_child_tid;		/* CLONE_CHILD_SETTID */
++	pid_t __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
+ 
+ 	cputime_t utime, stime, utimescaled, stimescaled;
+ 	cputime_t gtime;
+@@ -1319,11 +1355,6 @@ struct task_struct {
+ 	struct task_cputime cputime_expires;
+ 	struct list_head cpu_timers[3];
+ 
+-/* process credentials */
+-	const struct cred __rcu *real_cred; /* objective and real subjective task
+-					 * credentials (COW) */
+-	const struct cred __rcu *cred;	/* effective (overridable) subjective task
+-					 * credentials (COW) */
+ 	char comm[TASK_COMM_LEN]; /* executable name excluding path
+ 				     - access with [gs]et_task_comm (which lock
+ 				       it with task_lock())
+@@ -1340,6 +1371,10 @@ struct task_struct {
+ #endif
+ /* CPU-specific state of this task */
+ 	struct thread_struct thread;
++/* thread_info moved to task_struct */
++#ifdef CONFIG_X86
++	struct thread_info tinfo;
++#endif
+ /* filesystem information */
+ 	struct fs_struct *fs;
+ /* open file information */
+@@ -1416,6 +1451,10 @@ struct task_struct {
+ 	gfp_t lockdep_reclaim_gfp;
+ #endif
+ 
++/* process credentials */
++	const struct cred __rcu *real_cred; /* objective and real subjective task
++					 * credentials (COW) */
++
+ /* journalling filesystem info */
+ 	void *journal_info;
+ 
+@@ -1454,6 +1493,10 @@ struct task_struct {
+ 	/* cg_list protected by css_set_lock and tsk->alloc_lock */
+ 	struct list_head cg_list;
+ #endif
++
++	const struct cred __rcu *cred;	/* effective (overridable) subjective task
++					 * credentials (COW) */
++
+ #ifdef CONFIG_FUTEX
+ 	struct robust_list_head __user *robust_list;
+ #ifdef CONFIG_COMPAT
+@@ -1556,7 +1599,7 @@ struct task_struct {
+ 	 * Number of functions that haven't been traced
+ 	 * because of depth overrun.
+ 	 */
+-	atomic_t trace_overrun;
++	atomic_unchecked_t trace_overrun;
+ 	/* Pause for the tracing */
+ 	atomic_t tracing_graph_pause;
+ #endif
+@@ -1588,7 +1631,78 @@ struct task_struct {
+ 	unsigned int	sequential_io;
+ 	unsigned int	sequential_io_avg;
+ #endif
+-};
++
++#ifdef CONFIG_GRKERNSEC
++	/* grsecurity */
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	u64 exec_id;
++#endif
++#ifdef CONFIG_GRKERNSEC_SETXID
++	const struct cred *delayed_cred;
++#endif
++	struct dentry *gr_chroot_dentry;
++	struct acl_subject_label *acl;
++	struct acl_subject_label *tmpacl;
++	struct acl_role_label *role;
++	struct file *exec_file;
++	unsigned long brute_expires;
++	u16 acl_role_id;
++	u8 inherited;
++	/* is this the task that authenticated to the special role */
++	u8 acl_sp_role;
++	u8 is_writable;
++	u8 brute;
++	u8 gr_is_chrooted;
++#endif
++
++} __randomize_layout;
++
++#define MF_PAX_PAGEEXEC		0x01000000	/* Paging based non-executable pages */
++#define MF_PAX_EMUTRAMP		0x02000000	/* Emulate trampolines */
++#define MF_PAX_MPROTECT		0x04000000	/* Restrict mprotect() */
++#define MF_PAX_RANDMMAP		0x08000000	/* Randomize mmap() base */
++/*#define MF_PAX_RANDEXEC		0x10000000*/	/* Randomize ET_EXEC base */
++#define MF_PAX_SEGMEXEC		0x20000000	/* Segmentation based non-executable pages */
++
++#ifdef CONFIG_PAX_SOFTMODE
++extern int pax_softmode;
++#endif
++
++extern int pax_check_flags(unsigned long *);
++#define PAX_PARSE_FLAGS_FALLBACK	(~0UL)
++
++/* if tsk != current then task_lock must be held on it */
++#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR)
++static inline unsigned long pax_get_flags(struct task_struct *tsk)
++{
++	if (likely(tsk->mm))
++		return tsk->mm->pax_flags;
++	else
++		return 0UL;
++}
++
++/* if tsk != current then task_lock must be held on it */
++static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags)
++{
++	if (likely(tsk->mm)) {
++		tsk->mm->pax_flags = flags;
++		return 0;
++	}
++	return -EINVAL;
++}
++#endif
++
++#ifdef CONFIG_PAX_HAVE_ACL_FLAGS
++extern void pax_set_initial_flags(struct linux_binprm *bprm);
++#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS)
++extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm);
++#endif
++
++struct path;
++extern char *pax_get_path(const struct path *path, char *buf, int buflen);
++extern void pax_report_fault(struct pt_regs *regs, void *pc, void *sp);
++extern void pax_report_insns(struct pt_regs *regs, void *pc, void *sp);
++extern void pax_report_refcount_overflow(struct pt_regs *regs);
+ 
+ /* Future-safe accessor for struct task_struct's cpus_allowed. */
+ #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
+@@ -1665,7 +1779,7 @@ struct pid_namespace;
+ pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
+ 			struct pid_namespace *ns);
+ 
+-static inline pid_t task_pid_nr(struct task_struct *tsk)
++static inline pid_t task_pid_nr(const struct task_struct *tsk)
+ {
+ 	return tsk->pid;
+ }
+@@ -2015,6 +2129,25 @@ extern u64 sched_clock_cpu(int cpu);
+ 
+ extern void sched_clock_init(void);
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++static inline void populate_stack(void)
++{
++	struct task_struct *curtask = current;
++	int c;
++	int *ptr = curtask->stack;
++	int *end = curtask->stack + THREAD_SIZE;
++
++	while (ptr < end) {
++		c = *(volatile int *)ptr;
++		ptr += PAGE_SIZE/sizeof(int);
++	}
++}
++#else
++static inline void populate_stack(void)
++{
++}
++#endif
++
+ #ifndef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
+ static inline void sched_clock_tick(void)
+ {
+@@ -2139,7 +2272,9 @@ void yield(void);
+ extern struct exec_domain	default_exec_domain;
+ 
+ union thread_union {
++#ifndef CONFIG_X86
+ 	struct thread_info thread_info;
++#endif
+ 	unsigned long stack[THREAD_SIZE/sizeof(long)];
+ };
+ 
+@@ -2172,6 +2307,7 @@ extern struct pid_namespace init_pid_ns;
+  */
+ 
+ extern struct task_struct *find_task_by_vpid(pid_t nr);
++extern struct task_struct *find_task_by_vpid_unrestricted(pid_t nr);
+ extern struct task_struct *find_task_by_pid_ns(pid_t nr,
+ 		struct pid_namespace *ns);
+ 
+@@ -2334,7 +2470,7 @@ extern void __cleanup_sighand(struct sighand_struct *);
+ extern void exit_itimers(struct signal_struct *);
+ extern void flush_itimer_signals(void);
+ 
+-extern void do_group_exit(int);
++extern __noreturn void do_group_exit(int);
+ 
+ extern int allow_signal(int);
+ extern int disallow_signal(int);
+@@ -2535,9 +2671,9 @@ static inline unsigned long *end_of_stack(struct task_struct *p)
+ 
+ #endif
+ 
+-static inline int object_is_on_stack(void *obj)
++static inline int object_starts_on_stack(const void *obj)
+ {
+-	void *stack = task_stack_page(current);
++	const void *stack = task_stack_page(current);
+ 
+ 	return (obj >= stack) && (obj < (stack + THREAD_SIZE));
+ }
+diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
+index 8045a55..c959cd5 100644
+--- a/include/linux/sched/sysctl.h
++++ b/include/linux/sched/sysctl.h
+@@ -30,6 +30,7 @@ enum { sysctl_hung_task_timeout_secs = 0 };
+ #define DEFAULT_MAX_MAP_COUNT	(USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
+ 
+ extern int sysctl_max_map_count;
++extern unsigned long sysctl_heap_stack_gap;
+ 
+ extern unsigned int sysctl_sched_latency;
+ extern unsigned int sysctl_sched_min_granularity;
+diff --git a/include/linux/security.h b/include/linux/security.h
+index 2fc42d1..4d802f2 100644
+--- a/include/linux/security.h
++++ b/include/linux/security.h
+@@ -27,6 +27,7 @@
+ #include <linux/slab.h>
+ #include <linux/err.h>
+ #include <linux/string.h>
++#include <linux/grsecurity.h>
+ 
+ struct linux_binprm;
+ struct cred;
+@@ -116,8 +117,6 @@ struct seq_file;
+ 
+ extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
+ 
+-void reset_security_ops(void);
+-
+ #ifdef CONFIG_MMU
+ extern unsigned long mmap_min_addr;
+ extern unsigned long dac_mmap_min_addr;
+@@ -1719,7 +1718,7 @@ struct security_operations {
+ 				 struct audit_context *actx);
+ 	void (*audit_rule_free) (void *lsmrule);
+ #endif /* CONFIG_AUDIT */
+-};
++} __randomize_layout;
+ 
+ /* prototypes */
+ extern int security_init(void);
+diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
+index dc368b8..e895209 100644
+--- a/include/linux/semaphore.h
++++ b/include/linux/semaphore.h
+@@ -37,7 +37,7 @@ static inline void sema_init(struct semaphore *sem, int val)
+ }
+ 
+ extern void down(struct semaphore *sem);
+-extern int __must_check down_interruptible(struct semaphore *sem);
++extern int __must_check down_interruptible(struct semaphore *sem) __intentional_overflow(-1);
+ extern int __must_check down_killable(struct semaphore *sem);
+ extern int __must_check down_trylock(struct semaphore *sem);
+ extern int __must_check down_timeout(struct semaphore *sem, long jiffies);
+diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
+index 52e0097..383f21d 100644
+--- a/include/linux/seq_file.h
++++ b/include/linux/seq_file.h
+@@ -27,6 +27,9 @@ struct seq_file {
+ 	struct mutex lock;
+ 	const struct seq_operations *op;
+ 	int poll_event;
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	u64 exec_id;
++#endif
+ #ifdef CONFIG_USER_NS
+ 	struct user_namespace *user_ns;
+ #endif
+@@ -39,6 +42,7 @@ struct seq_operations {
+ 	void * (*next) (struct seq_file *m, void *v, loff_t *pos);
+ 	int (*show) (struct seq_file *m, void *v);
+ };
++typedef struct seq_operations __no_const seq_operations_no_const;
+ 
+ #define SEQ_SKIP 1
+ 
+@@ -96,6 +100,7 @@ void seq_pad(struct seq_file *m, char c);
+ 
+ char *mangle_path(char *s, const char *p, const char *esc);
+ int seq_open(struct file *, const struct seq_operations *);
++int seq_open_restrict(struct file *, const struct seq_operations *);
+ ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
+ loff_t seq_lseek(struct file *, loff_t, int);
+ int seq_release(struct inode *, struct file *);
+@@ -138,6 +143,7 @@ static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask)
+ }
+ 
+ int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
++int single_open_restrict(struct file *, int (*)(struct seq_file *, void *), void *);
+ int single_open_size(struct file *, int (*)(struct seq_file *, void *), void *, size_t);
+ int single_release(struct inode *, struct file *);
+ void *__seq_open_private(struct file *, const struct seq_operations *, int);
+diff --git a/include/linux/shm.h b/include/linux/shm.h
+index 1e2cd2e..0288750 100644
+--- a/include/linux/shm.h
++++ b/include/linux/shm.h
+@@ -21,6 +21,10 @@ struct shmid_kernel /* private to the kernel */
+ 
+ 	/* The task created the shm object.  NULL if the task is dead. */
+ 	struct task_struct	*shm_creator;
++#ifdef CONFIG_GRKERNSEC
++	time_t			shm_createtime;
++	pid_t			shm_lapid;
++#endif
+ };
+ 
+ /* shm_mode upper byte flags */
+diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
+index ab31337..95e2121 100644
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -663,7 +663,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
+ 			    int node);
+ struct sk_buff *__build_skb(void *data, unsigned int frag_size);
+ struct sk_buff *build_skb(void *data, unsigned int frag_size);
+-static inline struct sk_buff *alloc_skb(unsigned int size,
++static inline struct sk_buff * __intentional_overflow(0) alloc_skb(unsigned int size,
+ 					gfp_t priority)
+ {
+ 	return __alloc_skb(size, priority, 0, NUMA_NO_NODE);
+@@ -1769,7 +1769,7 @@ static inline u32 skb_inner_network_header_len(const struct sk_buff *skb)
+ 	return skb->inner_transport_header - skb->inner_network_header;
+ }
+ 
+-static inline int skb_network_offset(const struct sk_buff *skb)
++static inline int __intentional_overflow(0) skb_network_offset(const struct sk_buff *skb)
+ {
+ 	return skb_network_header(skb) - skb->data;
+ }
+@@ -1829,7 +1829,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
+  * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
+  */
+ #ifndef NET_SKB_PAD
+-#define NET_SKB_PAD	max(32, L1_CACHE_BYTES)
++#define NET_SKB_PAD	max(_AC(32,UL), L1_CACHE_BYTES)
+ #endif
+ 
+ int ___pskb_trim(struct sk_buff *skb, unsigned int len);
+@@ -2428,7 +2428,7 @@ struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
+ 				  int *err);
+ unsigned int datagram_poll(struct file *file, struct socket *sock,
+ 			   struct poll_table_struct *wait);
+-int skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
++int __intentional_overflow(0) skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
+ 			    struct iovec *to, int size);
+ int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
+ 				     struct iovec *iov);
+@@ -2723,6 +2723,9 @@ static inline void nf_reset(struct sk_buff *skb)
+ 	nf_bridge_put(skb->nf_bridge);
+ 	skb->nf_bridge = NULL;
+ #endif
++#if IS_ENABLED(CONFIG_NETFILTER_XT_TARGET_TRACE)
++	skb->nf_trace = 0;
++#endif
+ }
+ 
+ static inline void nf_reset_trace(struct sk_buff *skb)
+diff --git a/include/linux/slab.h b/include/linux/slab.h
+index b5b2df6..69f5734 100644
+--- a/include/linux/slab.h
++++ b/include/linux/slab.h
+@@ -14,15 +14,29 @@
+ #include <linux/gfp.h>
+ #include <linux/types.h>
+ #include <linux/workqueue.h>
+-
++#include <linux/err.h>
+ 
+ /*
+  * Flags to pass to kmem_cache_create().
+  * The ones marked DEBUG are only valid if CONFIG_SLAB_DEBUG is set.
+  */
+ #define SLAB_DEBUG_FREE		0x00000100UL	/* DEBUG: Perform (expensive) checks on free */
++
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++#define SLAB_USERCOPY		0x00000200UL	/* PaX: Allow copying objs to/from userland */
++#else
++#define SLAB_USERCOPY		0x00000000UL
++#endif
++
+ #define SLAB_RED_ZONE		0x00000400UL	/* DEBUG: Red zone objs in a cache */
+ #define SLAB_POISON		0x00000800UL	/* DEBUG: Poison objects */
++
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++#define SLAB_NO_SANITIZE	0x00001000UL	/* PaX: Do not sanitize objs on free */
++#else
++#define SLAB_NO_SANITIZE	0x00000000UL
++#endif
++
+ #define SLAB_HWCACHE_ALIGN	0x00002000UL	/* Align objs on cache lines */
+ #define SLAB_CACHE_DMA		0x00004000UL	/* Use GFP_DMA memory */
+ #define SLAB_STORE_USER		0x00010000UL	/* DEBUG: Store the last owner for bug hunting */
+@@ -98,10 +112,13 @@
+  * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can.
+  * Both make kfree a no-op.
+  */
+-#define ZERO_SIZE_PTR ((void *)16)
++#define ZERO_SIZE_PTR				\
++({						\
++	BUILD_BUG_ON(!(MAX_ERRNO & ~PAGE_MASK));\
++	(void *)(-MAX_ERRNO-1L);		\
++})
+ 
+-#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \
+-				(unsigned long)ZERO_SIZE_PTR)
++#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) - 1 >= (unsigned long)ZERO_SIZE_PTR - 1)
+ 
+ #include <linux/kmemleak.h>
+ 
+@@ -142,6 +159,8 @@ void * __must_check krealloc(const void *, size_t, gfp_t);
+ void kfree(const void *);
+ void kzfree(const void *);
+ size_t ksize(const void *);
++const char *check_heap_object(const void *ptr, unsigned long n);
++bool is_usercopy_object(const void *ptr);
+ 
+ /*
+  * Some archs want to perform DMA into kmalloc caches and need a guaranteed
+@@ -174,7 +193,7 @@ struct kmem_cache {
+ 	unsigned int align;	/* Alignment as calculated */
+ 	unsigned long flags;	/* Active flags on the slab */
+ 	const char *name;	/* Slab name for sysfs */
+-	int refcount;		/* Use counter */
++	atomic_t refcount;	/* Use counter */
+ 	void (*ctor)(void *);	/* Called on object slot creation */
+ 	struct list_head list;	/* List of all slab caches on the system */
+ };
+@@ -248,6 +267,10 @@ extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1];
+ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
+ #endif
+ 
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++extern struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
++#endif
++
+ /*
+  * Figure out which kmalloc slab an allocation of a certain size
+  * belongs to.
+@@ -256,7 +279,7 @@ extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
+  * 2 = 120 .. 192 bytes
+  * n = 2^(n-1) .. 2^n -1
+  */
+-static __always_inline int kmalloc_index(size_t size)
++static __always_inline __size_overflow(1) int kmalloc_index(size_t size)
+ {
+ 	if (!size)
+ 		return 0;
+@@ -299,11 +322,11 @@ static __always_inline int kmalloc_index(size_t size)
+ }
+ #endif /* !CONFIG_SLOB */
+ 
+-void *__kmalloc(size_t size, gfp_t flags);
++void *__kmalloc(size_t size, gfp_t flags) __alloc_size(1);
+ void *kmem_cache_alloc(struct kmem_cache *, gfp_t flags);
+ 
+ #ifdef CONFIG_NUMA
+-void *__kmalloc_node(size_t size, gfp_t flags, int node);
++void *__kmalloc_node(size_t size, gfp_t flags, int node) __alloc_size(1);
+ void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
+ #else
+ static __always_inline void *__kmalloc_node(size_t size, gfp_t flags, int node)
+diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
+index 8235dfb..47ce586 100644
+--- a/include/linux/slab_def.h
++++ b/include/linux/slab_def.h
+@@ -38,7 +38,7 @@ struct kmem_cache {
+ /* 4) cache creation/removal */
+ 	const char *name;
+ 	struct list_head list;
+-	int refcount;
++	atomic_t refcount;
+ 	int object_size;
+ 	int align;
+ 
+@@ -54,10 +54,14 @@ struct kmem_cache {
+ 	unsigned long node_allocs;
+ 	unsigned long node_frees;
+ 	unsigned long node_overflow;
+-	atomic_t allochit;
+-	atomic_t allocmiss;
+-	atomic_t freehit;
+-	atomic_t freemiss;
++	atomic_unchecked_t allochit;
++	atomic_unchecked_t allocmiss;
++	atomic_unchecked_t freehit;
++	atomic_unchecked_t freemiss;
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	atomic_unchecked_t sanitized;
++	atomic_unchecked_t not_sanitized;
++#endif
+ 
+ 	/*
+ 	 * If debugging is enabled, then the allocator can add additional
+diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
+index f56bfa9..8378a26 100644
+--- a/include/linux/slub_def.h
++++ b/include/linux/slub_def.h
+@@ -74,7 +74,7 @@ struct kmem_cache {
+ 	struct kmem_cache_order_objects max;
+ 	struct kmem_cache_order_objects min;
+ 	gfp_t allocflags;	/* gfp flags to use on each alloc */
+-	int refcount;		/* Refcount for slab cache destroy */
++	atomic_t refcount;	/* Refcount for slab cache destroy */
+ 	void (*ctor)(void *);
+ 	int inuse;		/* Offset to metadata */
+ 	int align;		/* Alignment */
+diff --git a/include/linux/smp.h b/include/linux/smp.h
+index 6ae004e..2743532 100644
+--- a/include/linux/smp.h
++++ b/include/linux/smp.h
+@@ -180,7 +180,9 @@ static inline void kick_all_cpus_sync(void) {  }
+ #endif
+ 
+ #define get_cpu()		({ preempt_disable(); smp_processor_id(); })
++#define raw_get_cpu()		({ raw_preempt_disable(); raw_smp_processor_id(); })
+ #define put_cpu()		preempt_enable()
++#define raw_put_cpu_no_resched()	raw_preempt_enable_no_resched()
+ 
+ /*
+  * Callback to arch code if there's nosmp or maxcpus=0 on the
+diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
+index 46cca4c..3323536 100644
+--- a/include/linux/sock_diag.h
++++ b/include/linux/sock_diag.h
+@@ -11,7 +11,7 @@ struct sock;
+ struct sock_diag_handler {
+ 	__u8 family;
+ 	int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
+-};
++} __do_const;
+ 
+ int sock_diag_register(const struct sock_diag_handler *h);
+ void sock_diag_unregister(const struct sock_diag_handler *h);
+diff --git a/include/linux/sonet.h b/include/linux/sonet.h
+index 680f9a3..f13aeb0 100644
+--- a/include/linux/sonet.h
++++ b/include/linux/sonet.h
+@@ -7,7 +7,7 @@
+ #include <uapi/linux/sonet.h>
+ 
+ struct k_sonet_stats {
+-#define __HANDLE_ITEM(i) atomic_t i
++#define __HANDLE_ITEM(i) atomic_unchecked_t i
+ 	__SONET_ITEMS
+ #undef __HANDLE_ITEM
+ };
+diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
+index 07d8e53..dc934c9 100644
+--- a/include/linux/sunrpc/addr.h
++++ b/include/linux/sunrpc/addr.h
+@@ -23,9 +23,9 @@ static inline unsigned short rpc_get_port(const struct sockaddr *sap)
+ {
+ 	switch (sap->sa_family) {
+ 	case AF_INET:
+-		return ntohs(((struct sockaddr_in *)sap)->sin_port);
++		return ntohs(((const struct sockaddr_in *)sap)->sin_port);
+ 	case AF_INET6:
+-		return ntohs(((struct sockaddr_in6 *)sap)->sin6_port);
++		return ntohs(((const struct sockaddr_in6 *)sap)->sin6_port);
+ 	}
+ 	return 0;
+ }
+@@ -58,7 +58,7 @@ static inline bool __rpc_cmp_addr4(const struct sockaddr *sap1,
+ static inline bool __rpc_copy_addr4(struct sockaddr *dst,
+ 				    const struct sockaddr *src)
+ {
+-	const struct sockaddr_in *ssin = (struct sockaddr_in *) src;
++	const struct sockaddr_in *ssin = (const struct sockaddr_in *) src;
+ 	struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
+ 
+ 	dsin->sin_family = ssin->sin_family;
+@@ -164,7 +164,7 @@ static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
+ 	if (sa->sa_family != AF_INET6)
+ 		return 0;
+ 
+-	return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
++	return ((const struct sockaddr_in6 *) sa)->sin6_scope_id;
+ }
+ 
+ #endif /* _LINUX_SUNRPC_ADDR_H */
+diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
+index 8af2804..c7414ef 100644
+--- a/include/linux/sunrpc/clnt.h
++++ b/include/linux/sunrpc/clnt.h
+@@ -97,7 +97,7 @@ struct rpc_procinfo {
+ 	unsigned int		p_timer;	/* Which RTT timer to use */
+ 	u32			p_statidx;	/* Which procedure to account */
+ 	const char *		p_name;		/* name of procedure */
+-};
++} __do_const;
+ 
+ #ifdef __KERNEL__
+ 
+diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
+index 04e7632..2e2a8a3 100644
+--- a/include/linux/sunrpc/svc.h
++++ b/include/linux/sunrpc/svc.h
+@@ -412,7 +412,7 @@ struct svc_procedure {
+ 	unsigned int		pc_count;	/* call count */
+ 	unsigned int		pc_cachetype;	/* cache info (NFS) */
+ 	unsigned int		pc_xdrressize;	/* maximum size of XDR reply */
+-};
++} __do_const;
+ 
+ /*
+  * Function prototypes.
+diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
+index 0b8e3e6..33e0a01 100644
+--- a/include/linux/sunrpc/svc_rdma.h
++++ b/include/linux/sunrpc/svc_rdma.h
+@@ -53,15 +53,15 @@ extern unsigned int svcrdma_ord;
+ extern unsigned int svcrdma_max_requests;
+ extern unsigned int svcrdma_max_req_size;
+ 
+-extern atomic_t rdma_stat_recv;
+-extern atomic_t rdma_stat_read;
+-extern atomic_t rdma_stat_write;
+-extern atomic_t rdma_stat_sq_starve;
+-extern atomic_t rdma_stat_rq_starve;
+-extern atomic_t rdma_stat_rq_poll;
+-extern atomic_t rdma_stat_rq_prod;
+-extern atomic_t rdma_stat_sq_poll;
+-extern atomic_t rdma_stat_sq_prod;
++extern atomic_unchecked_t rdma_stat_recv;
++extern atomic_unchecked_t rdma_stat_read;
++extern atomic_unchecked_t rdma_stat_write;
++extern atomic_unchecked_t rdma_stat_sq_starve;
++extern atomic_unchecked_t rdma_stat_rq_starve;
++extern atomic_unchecked_t rdma_stat_rq_poll;
++extern atomic_unchecked_t rdma_stat_rq_prod;
++extern atomic_unchecked_t rdma_stat_sq_poll;
++extern atomic_unchecked_t rdma_stat_sq_prod;
+ 
+ #define RPCRDMA_VERSION 1
+ 
+diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
+index 8d71d65..f79586e 100644
+--- a/include/linux/sunrpc/svcauth.h
++++ b/include/linux/sunrpc/svcauth.h
+@@ -120,7 +120,7 @@ struct auth_ops {
+ 	int	(*release)(struct svc_rqst *rq);
+ 	void	(*domain_release)(struct auth_domain *);
+ 	int	(*set_client)(struct svc_rqst *rq);
+-};
++} __do_const;
+ 
+ #define	SVC_GARBAGE	1
+ #define	SVC_SYSERR	2
+diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
+index a5ffd32..0935dea 100644
+--- a/include/linux/swiotlb.h
++++ b/include/linux/swiotlb.h
+@@ -60,7 +60,8 @@ extern void
+ 
+ extern void
+ swiotlb_free_coherent(struct device *hwdev, size_t size,
+-		      void *vaddr, dma_addr_t dma_handle);
++		      void *vaddr, dma_addr_t dma_handle,
++		      struct dma_attrs *attrs);
+ 
+ extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
+ 				   unsigned long offset, size_t size,
+diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
+index a747a77..b44c9b4 100644
+--- a/include/linux/syscalls.h
++++ b/include/linux/syscalls.h
+@@ -99,7 +99,12 @@ struct sigaltstack;
+ 
+ #define __SC_DECL(t, a)	t a
+ #define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
+-#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
++#define __SC_LONG(t, a)	__typeof__(				\
++	__builtin_choose_expr(					\
++		sizeof(t) > sizeof(int),			\
++		(t) 0,						\
++		__builtin_choose_expr(__type_is_unsigned(t), 0UL, 0L)	\
++	)) a
+ #define __SC_CAST(t, a)	(t) a
+ #define __SC_ARGS(t, a)	a
+ #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
+@@ -371,11 +376,11 @@ asmlinkage long sys_sync(void);
+ asmlinkage long sys_fsync(unsigned int fd);
+ asmlinkage long sys_fdatasync(unsigned int fd);
+ asmlinkage long sys_bdflush(int func, long data);
+-asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
+-				char __user *type, unsigned long flags,
++asmlinkage long sys_mount(const char __user *dev_name, const char __user *dir_name,
++				const char __user *type, unsigned long flags,
+ 				void __user *data);
+-asmlinkage long sys_umount(char __user *name, int flags);
+-asmlinkage long sys_oldumount(char __user *name);
++asmlinkage long sys_umount(const char __user *name, int flags);
++asmlinkage long sys_oldumount(const char __user *name);
+ asmlinkage long sys_truncate(const char __user *path, long length);
+ asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
+ asmlinkage long sys_stat(const char __user *filename,
+@@ -587,7 +592,7 @@ asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
+ asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
+ asmlinkage long sys_send(int, void __user *, size_t, unsigned);
+ asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
+-				struct sockaddr __user *, int);
++				struct sockaddr __user *, int) __intentional_overflow(0);
+ asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
+ asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
+ 			     unsigned int vlen, unsigned flags);
+@@ -646,10 +651,10 @@ asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
+ 
+ asmlinkage long sys_semget(key_t key, int nsems, int semflg);
+ asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
+-				unsigned nsops);
++				long nsops);
+ asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
+ asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
+-				unsigned nsops,
++				long nsops,
+ 				const struct timespec __user *timeout);
+ asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
+ asmlinkage long sys_shmget(key_t key, size_t size, int flag);
+diff --git a/include/linux/syscore_ops.h b/include/linux/syscore_ops.h
+index 27b3b0b..e093dd9 100644
+--- a/include/linux/syscore_ops.h
++++ b/include/linux/syscore_ops.h
+@@ -16,7 +16,7 @@ struct syscore_ops {
+ 	int (*suspend)(void);
+ 	void (*resume)(void);
+ 	void (*shutdown)(void);
+-};
++} __do_const;
+ 
+ extern void register_syscore_ops(struct syscore_ops *ops);
+ extern void unregister_syscore_ops(struct syscore_ops *ops);
+diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
+index 14a8ff2..fa95f3a 100644
+--- a/include/linux/sysctl.h
++++ b/include/linux/sysctl.h
+@@ -34,13 +34,13 @@ struct ctl_table_root;
+ struct ctl_table_header;
+ struct ctl_dir;
+ 
+-typedef struct ctl_table ctl_table;
+-
+ typedef int proc_handler (struct ctl_table *ctl, int write,
+ 			  void __user *buffer, size_t *lenp, loff_t *ppos);
+ 
+ extern int proc_dostring(struct ctl_table *, int,
+ 			 void __user *, size_t *, loff_t *);
++extern int proc_dostring_modpriv(struct ctl_table *, int,
++			 void __user *, size_t *, loff_t *);
+ extern int proc_dointvec(struct ctl_table *, int,
+ 			 void __user *, size_t *, loff_t *);
+ extern int proc_dointvec_minmax(struct ctl_table *, int,
+@@ -115,7 +115,9 @@ struct ctl_table
+ 	struct ctl_table_poll *poll;
+ 	void *extra1;
+ 	void *extra2;
+-};
++} __do_const __randomize_layout;
++typedef struct ctl_table __no_const ctl_table_no_const;
++typedef struct ctl_table ctl_table;
+ 
+ struct ctl_node {
+ 	struct rb_node node;
+diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
+index 30b2ebe..37412ef 100644
+--- a/include/linux/sysfs.h
++++ b/include/linux/sysfs.h
+@@ -34,7 +34,8 @@ struct attribute {
+ 	struct lock_class_key	*key;
+ 	struct lock_class_key	skey;
+ #endif
+-};
++} __do_const;
++typedef struct attribute __no_const attribute_no_const;
+ 
+ /**
+  *	sysfs_attr_init - initialize a dynamically allocated sysfs attribute
+@@ -63,7 +64,8 @@ struct attribute_group {
+ 					      struct attribute *, int);
+ 	struct attribute	**attrs;
+ 	struct bin_attribute	**bin_attrs;
+-};
++} __do_const;
++typedef struct attribute_group __no_const attribute_group_no_const;
+ 
+ /**
+  * Use these macros to make defining attributes easier. See include/linux/device.h
+@@ -127,7 +129,8 @@ struct bin_attribute {
+ 			 char *, loff_t, size_t);
+ 	int (*mmap)(struct file *, struct kobject *, struct bin_attribute *attr,
+ 		    struct vm_area_struct *vma);
+-};
++} __do_const;
++typedef struct bin_attribute __no_const bin_attribute_no_const;
+ 
+ /**
+  *	sysfs_bin_attr_init - initialize a dynamically allocated bin_attribute
+diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
+index 387fa7d..3fcde6b 100644
+--- a/include/linux/sysrq.h
++++ b/include/linux/sysrq.h
+@@ -16,6 +16,7 @@
+ 
+ #include <linux/errno.h>
+ #include <linux/types.h>
++#include <linux/compiler.h>
+ 
+ /* Possible values of bitmask for enabling sysrq functions */
+ /* 0x0001 is reserved for enable everything */
+@@ -33,7 +34,7 @@ struct sysrq_key_op {
+ 	char *help_msg;
+ 	char *action_msg;
+ 	int enable_mask;
+-};
++} __do_const;
+ 
+ #ifdef CONFIG_MAGIC_SYSRQ
+ 
+diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
+index a629e4b..3fea3d9 100644
+--- a/include/linux/thread_info.h
++++ b/include/linux/thread_info.h
+@@ -159,6 +159,13 @@ static inline bool test_and_clear_restore_sigmask(void)
+ #error "no set_restore_sigmask() provided and default one won't work"
+ #endif
+ 
++extern void __check_object_size(const void *ptr, unsigned long n, bool to_user, bool const_size);
++
++static inline void check_object_size(const void *ptr, unsigned long n, bool to_user)
++{
++	__check_object_size(ptr, n, to_user, __builtin_constant_p(n));
++}
++
+ #endif	/* __KERNEL__ */
+ 
+ #endif /* _LINUX_THREAD_INFO_H */
+diff --git a/include/linux/tty.h b/include/linux/tty.h
+index b90b5c2..e23a512 100644
+--- a/include/linux/tty.h
++++ b/include/linux/tty.h
+@@ -202,7 +202,7 @@ struct tty_port {
+ 	const struct tty_port_operations *ops;	/* Port operations */
+ 	spinlock_t		lock;		/* Lock protecting tty field */
+ 	int			blocked_open;	/* Waiting to open */
+-	int			count;		/* Usage count */
++	atomic_t		count;		/* Usage count */
+ 	wait_queue_head_t	open_wait;	/* Open waiters */
+ 	wait_queue_head_t	close_wait;	/* Close waiters */
+ 	wait_queue_head_t	delta_msr_wait;	/* Modem status change */
+@@ -284,7 +284,7 @@ struct tty_struct {
+ 	/* If the tty has a pending do_SAK, queue it here - akpm */
+ 	struct work_struct SAK_work;
+ 	struct tty_port *port;
+-};
++} __randomize_layout;
+ 
+ /* Each of a tty's open files has private_data pointing to tty_file_private */
+ struct tty_file_private {
+@@ -550,7 +550,7 @@ extern int tty_port_open(struct tty_port *port,
+ 				struct tty_struct *tty, struct file *filp);
+ static inline int tty_port_users(struct tty_port *port)
+ {
+-	return port->count + port->blocked_open;
++	return atomic_read(&port->count) + port->blocked_open;
+ }
+ 
+ extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
+diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
+index 756a609..89db85e 100644
+--- a/include/linux/tty_driver.h
++++ b/include/linux/tty_driver.h
+@@ -285,7 +285,7 @@ struct tty_operations {
+ 	void (*poll_put_char)(struct tty_driver *driver, int line, char ch);
+ #endif
+ 	const struct file_operations *proc_fops;
+-};
++} __do_const __randomize_layout;
+ 
+ struct tty_driver {
+ 	int	magic;		/* magic number for this structure */
+@@ -319,7 +319,7 @@ struct tty_driver {
+ 
+ 	const struct tty_operations *ops;
+ 	struct list_head tty_drivers;
+-};
++} __randomize_layout;
+ 
+ extern struct list_head tty_drivers;
+ 
+diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
+index b8347c2..85d8b0f 100644
+--- a/include/linux/tty_ldisc.h
++++ b/include/linux/tty_ldisc.h
+@@ -213,7 +213,7 @@ struct tty_ldisc_ops {
+ 
+ 	struct  module *owner;
+ 
+-	int refcount;
++	atomic_t refcount;
+ };
+ 
+ struct tty_ldisc {
+diff --git a/include/linux/types.h b/include/linux/types.h
+index 4d118ba..c3ee9bf 100644
+--- a/include/linux/types.h
++++ b/include/linux/types.h
+@@ -176,10 +176,26 @@ typedef struct {
+ 	int counter;
+ } atomic_t;
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++typedef struct {
++	int counter;
++} atomic_unchecked_t;
++#else
++typedef atomic_t atomic_unchecked_t;
++#endif
++
+ #ifdef CONFIG_64BIT
+ typedef struct {
+ 	long counter;
+ } atomic64_t;
++
++#ifdef CONFIG_PAX_REFCOUNT
++typedef struct {
++	long counter;
++} atomic64_unchecked_t;
++#else
++typedef atomic64_t atomic64_unchecked_t;
++#endif
+ #endif
+ 
+ struct list_head {
+diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
+index ecd3319..8a36ded 100644
+--- a/include/linux/uaccess.h
++++ b/include/linux/uaccess.h
+@@ -75,11 +75,11 @@ static inline unsigned long __copy_from_user_nocache(void *to,
+ 		long ret;				\
+ 		mm_segment_t old_fs = get_fs();		\
+ 							\
+-		set_fs(KERNEL_DS);			\
+ 		pagefault_disable();			\
+-		ret = __copy_from_user_inatomic(&(retval), (__force typeof(retval) __user *)(addr), sizeof(retval));		\
+-		pagefault_enable();			\
++		set_fs(KERNEL_DS);			\
++		ret = __copy_from_user_inatomic(&(retval), (typeof(retval) __force_user *)(addr), sizeof(retval));		\
+ 		set_fs(old_fs);				\
++		pagefault_enable();			\
+ 		ret;					\
+ 	})
+ 
+diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
+index 2d1f9b6..d7a9fce 100644
+--- a/include/linux/uidgid.h
++++ b/include/linux/uidgid.h
+@@ -175,4 +175,9 @@ static inline bool kgid_has_mapping(struct user_namespace *ns, kgid_t gid)
+ 
+ #endif /* CONFIG_USER_NS */
+ 
++#define GR_GLOBAL_UID(x) from_kuid_munged(&init_user_ns, (x))
++#define GR_GLOBAL_GID(x) from_kgid_munged(&init_user_ns, (x))
++#define gr_is_global_root(x) uid_eq((x), GLOBAL_ROOT_UID)
++#define gr_is_global_nonroot(x) (!uid_eq((x), GLOBAL_ROOT_UID))
++
+ #endif /* _LINUX_UIDGID_H */
+diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
+index 99c1b4d..562e6f3 100644
+--- a/include/linux/unaligned/access_ok.h
++++ b/include/linux/unaligned/access_ok.h
+@@ -4,34 +4,34 @@
+ #include <linux/kernel.h>
+ #include <asm/byteorder.h>
+ 
+-static inline u16 get_unaligned_le16(const void *p)
++static inline u16 __intentional_overflow(-1) get_unaligned_le16(const void *p)
+ {
+-	return le16_to_cpup((__le16 *)p);
++	return le16_to_cpup((const __le16 *)p);
+ }
+ 
+-static inline u32 get_unaligned_le32(const void *p)
++static inline u32 __intentional_overflow(-1) get_unaligned_le32(const void *p)
+ {
+-	return le32_to_cpup((__le32 *)p);
++	return le32_to_cpup((const __le32 *)p);
+ }
+ 
+-static inline u64 get_unaligned_le64(const void *p)
++static inline u64 __intentional_overflow(-1) get_unaligned_le64(const void *p)
+ {
+-	return le64_to_cpup((__le64 *)p);
++	return le64_to_cpup((const __le64 *)p);
+ }
+ 
+-static inline u16 get_unaligned_be16(const void *p)
++static inline u16 __intentional_overflow(-1) get_unaligned_be16(const void *p)
+ {
+-	return be16_to_cpup((__be16 *)p);
++	return be16_to_cpup((const __be16 *)p);
+ }
+ 
+-static inline u32 get_unaligned_be32(const void *p)
++static inline u32 __intentional_overflow(-1) get_unaligned_be32(const void *p)
+ {
+-	return be32_to_cpup((__be32 *)p);
++	return be32_to_cpup((const __be32 *)p);
+ }
+ 
+-static inline u64 get_unaligned_be64(const void *p)
++static inline u64 __intentional_overflow(-1) get_unaligned_be64(const void *p)
+ {
+-	return be64_to_cpup((__be64 *)p);
++	return be64_to_cpup((const __be64 *)p);
+ }
+ 
+ static inline void put_unaligned_le16(u16 val, void *p)
+diff --git a/include/linux/usb.h b/include/linux/usb.h
+index 49466be..5954884 100644
+--- a/include/linux/usb.h
++++ b/include/linux/usb.h
+@@ -589,7 +589,7 @@ struct usb_device {
+ 	int maxchild;
+ 
+ 	u32 quirks;
+-	atomic_t urbnum;
++	atomic_unchecked_t urbnum;
+ 
+ 	unsigned long active_duration;
+ 
+@@ -1668,7 +1668,7 @@ void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
+ 
+ extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
+ 	__u8 request, __u8 requesttype, __u16 value, __u16 index,
+-	void *data, __u16 size, int timeout);
++	void *data, __u16 size, int timeout) __intentional_overflow(-1);
+ extern int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
+ 	void *data, int len, int *actual_length, int timeout);
+ extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
+diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
+index e452ba6..78f8e80 100644
+--- a/include/linux/usb/renesas_usbhs.h
++++ b/include/linux/usb/renesas_usbhs.h
+@@ -39,7 +39,7 @@ enum {
+  */
+ struct renesas_usbhs_driver_callback {
+ 	int (*notify_hotplug)(struct platform_device *pdev);
+-};
++} __no_const;
+ 
+ /*
+  * callback functions for platform
+diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
+index e92abf9..b802b30 100644
+--- a/include/linux/user_namespace.h
++++ b/include/linux/user_namespace.h
+@@ -38,7 +38,7 @@ struct user_namespace {
+ 	struct key		*persistent_keyring_register;
+ 	struct rw_semaphore	persistent_keyring_register_sem;
+ #endif
+-};
++} __randomize_layout;
+ 
+ extern struct user_namespace init_user_ns;
+ 
+diff --git a/include/linux/utsname.h b/include/linux/utsname.h
+index 239e277..22a5cf5 100644
+--- a/include/linux/utsname.h
++++ b/include/linux/utsname.h
+@@ -24,7 +24,7 @@ struct uts_namespace {
+ 	struct new_utsname name;
+ 	struct user_namespace *user_ns;
+ 	unsigned int proc_inum;
+-};
++} __randomize_layout;
+ extern struct uts_namespace init_uts_ns;
+ 
+ #ifdef CONFIG_UTS_NS
+diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
+index 6f8fbcf..4efc177 100644
+--- a/include/linux/vermagic.h
++++ b/include/linux/vermagic.h
+@@ -25,9 +25,42 @@
+ #define MODULE_ARCH_VERMAGIC ""
+ #endif
+ 
++#ifdef CONFIG_PAX_REFCOUNT
++#define MODULE_PAX_REFCOUNT "REFCOUNT "
++#else
++#define MODULE_PAX_REFCOUNT ""
++#endif
++
++#ifdef CONSTIFY_PLUGIN
++#define MODULE_CONSTIFY_PLUGIN "CONSTIFY_PLUGIN "
++#else
++#define MODULE_CONSTIFY_PLUGIN ""
++#endif
++
++#ifdef STACKLEAK_PLUGIN
++#define MODULE_STACKLEAK_PLUGIN "STACKLEAK_PLUGIN "
++#else
++#define MODULE_STACKLEAK_PLUGIN ""
++#endif
++
++#ifdef RANDSTRUCT_PLUGIN
++#include <generated/randomize_layout_hash.h>
++#define MODULE_RANDSTRUCT_PLUGIN "RANDSTRUCT_PLUGIN_" RANDSTRUCT_HASHED_SEED
++#else
++#define MODULE_RANDSTRUCT_PLUGIN
++#endif
++
++#ifdef CONFIG_GRKERNSEC
++#define MODULE_GRSEC "GRSEC "
++#else
++#define MODULE_GRSEC ""
++#endif
++
+ #define VERMAGIC_STRING 						\
+ 	UTS_RELEASE " "							\
+ 	MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT 			\
+ 	MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS	\
+-	MODULE_ARCH_VERMAGIC
++	MODULE_ARCH_VERMAGIC						\
++	MODULE_PAX_REFCOUNT MODULE_CONSTIFY_PLUGIN MODULE_STACKLEAK_PLUGIN \
++	MODULE_GRSEC MODULE_RANDSTRUCT_PLUGIN
+ 
+diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
+index b483abd..af305ad 100644
+--- a/include/linux/vga_switcheroo.h
++++ b/include/linux/vga_switcheroo.h
+@@ -63,9 +63,9 @@ int vga_switcheroo_get_client_state(struct pci_dev *dev);
+ 
+ void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic);
+ 
+-int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain);
++int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain);
+ void vga_switcheroo_fini_domain_pm_ops(struct device *dev);
+-int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain);
++int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain);
+ #else
+ 
+ static inline void vga_switcheroo_unregister_client(struct pci_dev *dev) {}
+@@ -82,9 +82,9 @@ static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return
+ 
+ static inline void vga_switcheroo_set_dynamic_switch(struct pci_dev *pdev, enum vga_switcheroo_state dynamic) {}
+ 
+-static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
++static inline int vga_switcheroo_init_domain_pm_ops(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
+ static inline void vga_switcheroo_fini_domain_pm_ops(struct device *dev) {}
+-static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, struct dev_pm_domain *domain) { return -EINVAL; }
++static inline int vga_switcheroo_init_domain_pm_optimus_hdmi_audio(struct device *dev, dev_pm_domain_no_const *domain) { return -EINVAL; }
+ 
+ #endif
+ #endif /* _LINUX_VGA_SWITCHEROO_H_ */
+diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
+index 4b8a891..e9a2863 100644
+--- a/include/linux/vmalloc.h
++++ b/include/linux/vmalloc.h
+@@ -16,6 +16,11 @@ struct vm_area_struct;		/* vma defining user mapping in mm_types.h */
+ #define VM_USERMAP		0x00000008	/* suitable for remap_vmalloc_range */
+ #define VM_VPAGES		0x00000010	/* buffer for pages was vmalloc'ed */
+ #define VM_UNINITIALIZED	0x00000020	/* vm_struct is not fully initialized */
++
++#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
++#define VM_KERNEXEC		0x00000040	/* allocate from executable kernel memory range */
++#endif
++
+ /* bits [20..32] reserved for arch specific ioremap internals */
+ 
+ /*
+@@ -82,6 +87,10 @@ extern void *vmap(struct page **pages, unsigned int count,
+ 			unsigned long flags, pgprot_t prot);
+ extern void vunmap(const void *addr);
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++extern void unmap_process_stacks(struct task_struct *task);
++#endif
++
+ extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
+ 				       unsigned long uaddr, void *kaddr,
+ 				       unsigned long size);
+@@ -142,7 +151,7 @@ extern void free_vm_area(struct vm_struct *area);
+ 
+ /* for /dev/kmem */
+ extern long vread(char *buf, char *addr, unsigned long count);
+-extern long vwrite(char *buf, char *addr, unsigned long count);
++extern long vwrite(char *buf, char *addr, unsigned long count) __size_overflow(3);
+ 
+ /*
+  *	Internals.  Dont't use..
+diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
+index 67ce70c..d540954 100644
+--- a/include/linux/vmstat.h
++++ b/include/linux/vmstat.h
+@@ -98,18 +98,18 @@ static inline void vm_events_fold_cpu(int cpu)
+ /*
+  * Zone based page accounting with per cpu differentials.
+  */
+-extern atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
++extern atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS];
+ 
+ static inline void zone_page_state_add(long x, struct zone *zone,
+ 				 enum zone_stat_item item)
+ {
+-	atomic_long_add(x, &zone->vm_stat[item]);
+-	atomic_long_add(x, &vm_stat[item]);
++	atomic_long_add_unchecked(x, &zone->vm_stat[item]);
++	atomic_long_add_unchecked(x, &vm_stat[item]);
+ }
+ 
+-static inline unsigned long global_page_state(enum zone_stat_item item)
++static inline unsigned long __intentional_overflow(-1) global_page_state(enum zone_stat_item item)
+ {
+-	long x = atomic_long_read(&vm_stat[item]);
++	long x = atomic_long_read_unchecked(&vm_stat[item]);
+ #ifdef CONFIG_SMP
+ 	if (x < 0)
+ 		x = 0;
+@@ -117,10 +117,10 @@ static inline unsigned long global_page_state(enum zone_stat_item item)
+ 	return x;
+ }
+ 
+-static inline unsigned long zone_page_state(struct zone *zone,
++static inline unsigned long __intentional_overflow(-1) zone_page_state(struct zone *zone,
+ 					enum zone_stat_item item)
+ {
+-	long x = atomic_long_read(&zone->vm_stat[item]);
++	long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
+ #ifdef CONFIG_SMP
+ 	if (x < 0)
+ 		x = 0;
+@@ -137,7 +137,7 @@ static inline unsigned long zone_page_state(struct zone *zone,
+ static inline unsigned long zone_page_state_snapshot(struct zone *zone,
+ 					enum zone_stat_item item)
+ {
+-	long x = atomic_long_read(&zone->vm_stat[item]);
++	long x = atomic_long_read_unchecked(&zone->vm_stat[item]);
+ 
+ #ifdef CONFIG_SMP
+ 	int cpu;
+@@ -226,8 +226,8 @@ static inline void __mod_zone_page_state(struct zone *zone,
+ 
+ static inline void __inc_zone_state(struct zone *zone, enum zone_stat_item item)
+ {
+-	atomic_long_inc(&zone->vm_stat[item]);
+-	atomic_long_inc(&vm_stat[item]);
++	atomic_long_inc_unchecked(&zone->vm_stat[item]);
++	atomic_long_inc_unchecked(&vm_stat[item]);
+ }
+ 
+ static inline void __inc_zone_page_state(struct page *page,
+@@ -238,8 +238,8 @@ static inline void __inc_zone_page_state(struct page *page,
+ 
+ static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
+ {
+-	atomic_long_dec(&zone->vm_stat[item]);
+-	atomic_long_dec(&vm_stat[item]);
++	atomic_long_dec_unchecked(&zone->vm_stat[item]);
++	atomic_long_dec_unchecked(&vm_stat[item]);
+ }
+ 
+ static inline void __dec_zone_page_state(struct page *page,
+diff --git a/include/linux/xattr.h b/include/linux/xattr.h
+index 91b0a68..0e9adf6 100644
+--- a/include/linux/xattr.h
++++ b/include/linux/xattr.h
+@@ -28,7 +28,7 @@ struct xattr_handler {
+ 		   size_t size, int handler_flags);
+ 	int (*set)(struct dentry *dentry, const char *name, const void *buffer,
+ 		   size_t size, int flags, int handler_flags);
+-};
++} __do_const;
+ 
+ struct xattr {
+ 	const char *name;
+@@ -37,6 +37,9 @@ struct xattr {
+ };
+ 
+ ssize_t xattr_getsecurity(struct inode *, const char *, void *, size_t);
++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
++ssize_t pax_getxattr(struct dentry *, void *, size_t);
++#endif
+ ssize_t vfs_getxattr(struct dentry *, const char *, void *, size_t);
+ ssize_t vfs_listxattr(struct dentry *d, char *list, size_t size);
+ int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, int);
+diff --git a/include/linux/zlib.h b/include/linux/zlib.h
+index 9c5a6b4..09c9438 100644
+--- a/include/linux/zlib.h
++++ b/include/linux/zlib.h
+@@ -31,6 +31,7 @@
+ #define _ZLIB_H
+ 
+ #include <linux/zconf.h>
++#include <linux/compiler.h>
+ 
+ /* zlib deflate based on ZLIB_VERSION "1.1.3" */
+ /* zlib inflate based on ZLIB_VERSION "1.2.3" */
+@@ -179,7 +180,7 @@ typedef z_stream *z_streamp;
+ 
+                         /* basic functions */
+ 
+-extern int zlib_deflate_workspacesize (int windowBits, int memLevel);
++extern int zlib_deflate_workspacesize (int windowBits, int memLevel) __intentional_overflow(0);
+ /*
+    Returns the number of bytes that needs to be allocated for a per-
+    stream workspace with the specified parameters.  A pointer to this
+diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
+index c768c9f..bdcaa5a 100644
+--- a/include/media/v4l2-dev.h
++++ b/include/media/v4l2-dev.h
+@@ -76,7 +76,7 @@ struct v4l2_file_operations {
+ 	int (*mmap) (struct file *, struct vm_area_struct *);
+ 	int (*open) (struct file *);
+ 	int (*release) (struct file *);
+-};
++} __do_const;
+ 
+ /*
+  * Newer version of video_device, handled by videodev2.c
+diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
+index c9b1593..a572459 100644
+--- a/include/media/v4l2-device.h
++++ b/include/media/v4l2-device.h
+@@ -95,7 +95,7 @@ int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4
+    this function returns 0. If the name ends with a digit (e.g. cx18),
+    then the name will be set to cx18-0 since cx180 looks really odd. */
+ int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename,
+-						atomic_t *instance);
++						atomic_unchecked_t *instance);
+ 
+ /* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects.
+    Since the parent disappears this ensures that v4l2_dev doesn't have an
+diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
+index 9a36d92..0aafe2a 100644
+--- a/include/net/9p/transport.h
++++ b/include/net/9p/transport.h
+@@ -60,7 +60,7 @@ struct p9_trans_module {
+ 	int (*cancel) (struct p9_client *, struct p9_req_t *req);
+ 	int (*zc_request)(struct p9_client *, struct p9_req_t *,
+ 			  char *, char *, int , int, int, int);
+-};
++} __do_const;
+ 
+ void v9fs_register_trans(struct p9_trans_module *m);
+ void v9fs_unregister_trans(struct p9_trans_module *m);
+diff --git a/include/net/af_unix.h b/include/net/af_unix.h
+index a175ba4..196eb8242 100644
+--- a/include/net/af_unix.h
++++ b/include/net/af_unix.h
+@@ -36,7 +36,7 @@ struct unix_skb_parms {
+ 	u32			secid;		/* Security ID		*/
+ #endif
+ 	u32			consumed;
+-};
++} __randomize_layout;
+ 
+ #define UNIXCB(skb) 	(*(struct unix_skb_parms *)&((skb)->cb))
+ #define UNIXSID(skb)	(&UNIXCB((skb)).secid)
+diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
+index dbc4a89..4a59b5d 100644
+--- a/include/net/bluetooth/l2cap.h
++++ b/include/net/bluetooth/l2cap.h
+@@ -600,7 +600,7 @@ struct l2cap_ops {
+ 	long			(*get_sndtimeo) (struct l2cap_chan *chan);
+ 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
+ 					       unsigned long len, int nb);
+-};
++} __do_const;
+ 
+ struct l2cap_conn {
+ 	struct hci_conn		*hcon;
+diff --git a/include/net/caif/cfctrl.h b/include/net/caif/cfctrl.h
+index f2ae33d..c457cf0 100644
+--- a/include/net/caif/cfctrl.h
++++ b/include/net/caif/cfctrl.h
+@@ -52,7 +52,7 @@ struct cfctrl_rsp {
+ 	void (*radioset_rsp)(void);
+ 	void (*reject_rsp)(struct cflayer *layer, u8 linkid,
+ 				struct cflayer *client_layer);
+-};
++} __no_const;
+ 
+ /* Link Setup Parameters for CAIF-Links. */
+ struct cfctrl_link_param {
+@@ -101,8 +101,8 @@ struct cfctrl_request_info {
+ struct cfctrl {
+ 	struct cfsrvl serv;
+ 	struct cfctrl_rsp res;
+-	atomic_t req_seq_no;
+-	atomic_t rsp_seq_no;
++	atomic_unchecked_t req_seq_no;
++	atomic_unchecked_t rsp_seq_no;
+ 	struct list_head list;
+ 	/* Protects from simultaneous access to first_req list */
+ 	spinlock_t info_list_lock;
+diff --git a/include/net/flow.h b/include/net/flow.h
+index d23e7fa..e188307 100644
+--- a/include/net/flow.h
++++ b/include/net/flow.h
+@@ -221,6 +221,6 @@ struct flow_cache_object *flow_cache_lookup(struct net *net,
+ 
+ void flow_cache_flush(void);
+ void flow_cache_flush_deferred(void);
+-extern atomic_t flow_cache_genid;
++extern atomic_unchecked_t flow_cache_genid;
+ 
+ #endif
+diff --git a/include/net/genetlink.h b/include/net/genetlink.h
+index 93695f0..766d71c 100644
+--- a/include/net/genetlink.h
++++ b/include/net/genetlink.h
+@@ -120,7 +120,7 @@ struct genl_ops {
+ 	u8			cmd;
+ 	u8			internal_flags;
+ 	u8			flags;
+-};
++} __do_const;
+ 
+ int __genl_register_family(struct genl_family *family);
+ 
+diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
+index 734d9b5..48a9a4b 100644
+--- a/include/net/gro_cells.h
++++ b/include/net/gro_cells.h
+@@ -29,7 +29,7 @@ static inline void gro_cells_receive(struct gro_cells *gcells, struct sk_buff *s
+ 		cell += skb_get_rx_queue(skb) & gcells->gro_cells_mask;
+ 
+ 	if (skb_queue_len(&cell->napi_skbs) > netdev_max_backlog) {
+-		atomic_long_inc(&dev->rx_dropped);
++		atomic_long_inc_unchecked(&dev->rx_dropped);
+ 		kfree_skb(skb);
+ 		return;
+ 	}
+diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
+index cf92728..9236ee6 100644
+--- a/include/net/inet_connection_sock.h
++++ b/include/net/inet_connection_sock.h
+@@ -63,7 +63,7 @@ struct inet_connection_sock_af_ops {
+ 	int	    (*bind_conflict)(const struct sock *sk,
+ 				     const struct inet_bind_bucket *tb, bool relax);
+ 	void	    (*mtu_reduced)(struct sock *sk);
+-};
++} __do_const;
+ 
+ /** inet_connection_sock - INET connection oriented sock
+  *
+diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
+index 61474ea..6c56603 100644
+--- a/include/net/inet_timewait_sock.h
++++ b/include/net/inet_timewait_sock.h
+@@ -108,6 +108,7 @@ struct inet_timewait_sock {
+ #define tw_family		__tw_common.skc_family
+ #define tw_state		__tw_common.skc_state
+ #define tw_reuse		__tw_common.skc_reuse
++#define tw_ipv6only		__tw_common.skc_ipv6only
+ #define tw_bound_dev_if		__tw_common.skc_bound_dev_if
+ #define tw_node			__tw_common.skc_nulls_node
+ #define tw_bind_node		__tw_common.skc_bind_node
+@@ -131,7 +132,7 @@ struct inet_timewait_sock {
+ 	__be16			tw_sport;
+ 	kmemcheck_bitfield_begin(flags);
+ 	/* And these are ours. */
+-	unsigned int		tw_ipv6only     : 1,
++	unsigned int		tw_pad0		: 1,	/* 1 bit hole */
+ 				tw_transparent  : 1,
+ 				tw_flowlabel	: 20,
+ 				tw_pad		: 2,	/* 2 bits hole */
+diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
+index 823ec7b..44c938c 100644
+--- a/include/net/inetpeer.h
++++ b/include/net/inetpeer.h
+@@ -47,7 +47,7 @@ struct inet_peer {
+ 	 */
+ 	union {
+ 		struct {
+-			atomic_t			rid;		/* Frag reception counter */
++			atomic_unchecked_t		rid;		/* Frag reception counter */
+ 		};
+ 		struct rcu_head         rcu;
+ 		struct inet_peer	*gc_next;
+diff --git a/include/net/ip.h b/include/net/ip.h
+index 5128fa7..8814c81 100644
+--- a/include/net/ip.h
++++ b/include/net/ip.h
+@@ -215,7 +215,7 @@ static inline void snmp_mib_free(void __percpu *ptr[SNMP_ARRAY_SZ])
+ 
+ void inet_get_local_port_range(struct net *net, int *low, int *high);
+ 
+-extern unsigned long *sysctl_local_reserved_ports;
++extern unsigned long sysctl_local_reserved_ports[65536 / 8 / sizeof(unsigned long)];
+ static inline int inet_is_reserved_local_port(int port)
+ {
+ 	return test_bit(port, sysctl_local_reserved_ports);
+@@ -298,7 +298,7 @@ static inline unsigned int ip_skb_dst_mtu(const struct sk_buff *skb)
+ 	}
+ }
+ 
+-u32 ip_idents_reserve(u32 hash, int segs);
++u32 ip_idents_reserve(u32 hash, int segs) __intentional_overflow(-1);
+ void __ip_select_ident(struct iphdr *iph, int segs);
+ 
+ static inline void ip_select_ident_segs(struct sk_buff *skb, struct sock *sk, int segs)
+diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
+index 9922093..a1755d6 100644
+--- a/include/net/ip_fib.h
++++ b/include/net/ip_fib.h
+@@ -169,7 +169,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
+ 
+ #define FIB_RES_SADDR(net, res)				\
+ 	((FIB_RES_NH(res).nh_saddr_genid ==		\
+-	  atomic_read(&(net)->ipv4.dev_addr_genid)) ?	\
++	  atomic_read_unchecked(&(net)->ipv4.dev_addr_genid)) ?	\
+ 	 FIB_RES_NH(res).nh_saddr :			\
+ 	 fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
+ #define FIB_RES_GW(res)			(FIB_RES_NH(res).nh_gw)
+diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
+index 5679d92..2e7a690 100644
+--- a/include/net/ip_vs.h
++++ b/include/net/ip_vs.h
+@@ -558,7 +558,7 @@ struct ip_vs_conn {
+ 	struct ip_vs_conn       *control;       /* Master control connection */
+ 	atomic_t                n_control;      /* Number of controlled ones */
+ 	struct ip_vs_dest       *dest;          /* real server */
+-	atomic_t                in_pkts;        /* incoming packet counter */
++	atomic_unchecked_t      in_pkts;        /* incoming packet counter */
+ 
+ 	/* packet transmitter for different forwarding methods.  If it
+ 	   mangles the packet, it must return NF_DROP or better NF_STOLEN,
+@@ -705,7 +705,7 @@ struct ip_vs_dest {
+ 	__be16			port;		/* port number of the server */
+ 	union nf_inet_addr	addr;		/* IP address of the server */
+ 	volatile unsigned int	flags;		/* dest status flags */
+-	atomic_t		conn_flags;	/* flags to copy to conn */
++	atomic_unchecked_t	conn_flags;	/* flags to copy to conn */
+ 	atomic_t		weight;		/* server weight */
+ 
+ 	atomic_t		refcnt;		/* reference counter */
+@@ -960,11 +960,11 @@ struct netns_ipvs {
+ 	/* ip_vs_lblc */
+ 	int			sysctl_lblc_expiration;
+ 	struct ctl_table_header	*lblc_ctl_header;
+-	struct ctl_table	*lblc_ctl_table;
++	ctl_table_no_const	*lblc_ctl_table;
+ 	/* ip_vs_lblcr */
+ 	int			sysctl_lblcr_expiration;
+ 	struct ctl_table_header	*lblcr_ctl_header;
+-	struct ctl_table	*lblcr_ctl_table;
++	ctl_table_no_const	*lblcr_ctl_table;
+ 	/* ip_vs_est */
+ 	struct list_head	est_list;	/* estimator list */
+ 	spinlock_t		est_lock;
+diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
+index 8d4f588..2e37ad2 100644
+--- a/include/net/irda/ircomm_tty.h
++++ b/include/net/irda/ircomm_tty.h
+@@ -33,6 +33,7 @@
+ #include <linux/termios.h>
+ #include <linux/timer.h>
+ #include <linux/tty.h>		/* struct tty_struct */
++#include <asm/local.h>
+ 
+ #include <net/irda/irias_object.h>
+ #include <net/irda/ircomm_core.h>
+diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
+index 714cc9a..ea05f3e 100644
+--- a/include/net/iucv/af_iucv.h
++++ b/include/net/iucv/af_iucv.h
+@@ -149,7 +149,7 @@ struct iucv_skb_cb {
+ struct iucv_sock_list {
+ 	struct hlist_head head;
+ 	rwlock_t	  lock;
+-	atomic_t	  autobind_name;
++	atomic_unchecked_t autobind_name;
+ };
+ 
+ unsigned int iucv_sock_poll(struct file *file, struct socket *sock,
+diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
+index f3be818..bf46196 100644
+--- a/include/net/llc_c_ac.h
++++ b/include/net/llc_c_ac.h
+@@ -87,7 +87,7 @@
+ #define LLC_CONN_AC_STOP_SENDACK_TMR			70
+ #define LLC_CONN_AC_START_SENDACK_TMR_IF_NOT_RUNNING	71
+ 
+-typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
++typedef int (* const llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
+ 
+ int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
+ int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
+diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
+index 3948cf1..83b28c4 100644
+--- a/include/net/llc_c_ev.h
++++ b/include/net/llc_c_ev.h
+@@ -125,8 +125,8 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
+ 	return (struct llc_conn_state_ev *)skb->cb;
+ }
+ 
+-typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
+-typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
++typedef int (* const llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
++typedef int (* const llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
+ 
+ int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
+ int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
+diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
+index 0e79cfb..f46db31 100644
+--- a/include/net/llc_c_st.h
++++ b/include/net/llc_c_st.h
+@@ -37,7 +37,7 @@ struct llc_conn_state_trans {
+ 	u8		   next_state;
+ 	llc_conn_ev_qfyr_t *ev_qualifiers;
+ 	llc_conn_action_t  *ev_actions;
+-};
++} __do_const;
+ 
+ struct llc_conn_state {
+ 	u8			    current_state;
+diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
+index a61b98c..aade1eb 100644
+--- a/include/net/llc_s_ac.h
++++ b/include/net/llc_s_ac.h
+@@ -23,7 +23,7 @@
+ #define SAP_ACT_TEST_IND	9
+ 
+ /* All action functions must look like this */
+-typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
++typedef int (* const llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
+ 
+ int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb);
+ int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
+diff --git a/include/net/llc_s_st.h b/include/net/llc_s_st.h
+index 567c681..cd73ac02 100644
+--- a/include/net/llc_s_st.h
++++ b/include/net/llc_s_st.h
+@@ -20,7 +20,7 @@ struct llc_sap_state_trans {
+ 	llc_sap_ev_t	  ev;
+ 	u8		  next_state;
+ 	llc_sap_action_t *ev_actions;
+-};
++} __do_const;
+ 
+ struct llc_sap_state {
+ 	u8			   curr_state;
+diff --git a/include/net/mac80211.h b/include/net/mac80211.h
+index f4ab2fb..71a85ba 100644
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -4476,7 +4476,7 @@ struct rate_control_ops {
+ 	void (*add_sta_debugfs)(void *priv, void *priv_sta,
+ 				struct dentry *dir);
+ 	void (*remove_sta_debugfs)(void *priv, void *priv_sta);
+-};
++} __do_const;
+ 
+ static inline int rate_supported(struct ieee80211_sta *sta,
+ 				 enum ieee80211_band band,
+diff --git a/include/net/neighbour.h b/include/net/neighbour.h
+index 7277caf..fd095bc 100644
+--- a/include/net/neighbour.h
++++ b/include/net/neighbour.h
+@@ -163,7 +163,7 @@ struct neigh_ops {
+ 	void			(*error_report)(struct neighbour *, struct sk_buff *);
+ 	int			(*output)(struct neighbour *, struct sk_buff *);
+ 	int			(*connected_output)(struct neighbour *, struct sk_buff *);
+-};
++} __do_const;
+ 
+ struct pneigh_entry {
+ 	struct pneigh_entry	*next;
+@@ -203,7 +203,6 @@ struct neigh_table {
+ 	void			(*proxy_redo)(struct sk_buff *skb);
+ 	char			*id;
+ 	struct neigh_parms	parms;
+-	/* HACK. gc_* should follow parms without a gap! */
+ 	int			gc_interval;
+ 	int			gc_thresh1;
+ 	int			gc_thresh2;
+@@ -218,7 +217,7 @@ struct neigh_table {
+ 	struct neigh_statistics	__percpu *stats;
+ 	struct neigh_hash_table __rcu *nht;
+ 	struct pneigh_entry	**phash_buckets;
+-};
++} __randomize_layout;
+ 
+ static inline int neigh_parms_family(struct neigh_parms *p)
+ {
+diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
+index 991dcd9..ab58d00 100644
+--- a/include/net/net_namespace.h
++++ b/include/net/net_namespace.h
+@@ -124,8 +124,8 @@ struct net {
+ 	struct netns_ipvs	*ipvs;
+ #endif
+ 	struct sock		*diag_nlsk;
+-	atomic_t		fnhe_genid;
+-};
++	atomic_unchecked_t	fnhe_genid;
++} __randomize_layout;
+ 
+ /*
+  * ifindex generation is per-net namespace, and loopback is
+@@ -289,7 +289,11 @@ static inline struct net *read_pnet(struct net * const *pnet)
+ #define __net_init	__init
+ #define __net_exit	__exit_refok
+ #define __net_initdata	__initdata
++#ifdef CONSTIFY_PLUGIN
+ #define __net_initconst	__initconst
++#else
++#define __net_initconst	__initdata
++#endif
+ #endif
+ 
+ struct pernet_operations {
+@@ -299,7 +303,7 @@ struct pernet_operations {
+ 	void (*exit_batch)(struct list_head *net_exit_list);
+ 	int *id;
+ 	size_t size;
+-};
++} __do_const;
+ 
+ /*
+  * Use these carefully.  If you implement a network device and it
+@@ -347,23 +351,23 @@ static inline void unregister_net_sysctl_table(struct ctl_table_header *header)
+ 
+ static inline int rt_genid_ipv4(struct net *net)
+ {
+-	return atomic_read(&net->ipv4.rt_genid);
++	return atomic_read_unchecked(&net->ipv4.rt_genid);
+ }
+ 
+ static inline void rt_genid_bump_ipv4(struct net *net)
+ {
+-	atomic_inc(&net->ipv4.rt_genid);
++	atomic_inc_unchecked(&net->ipv4.rt_genid);
+ }
+ 
+ #if IS_ENABLED(CONFIG_IPV6)
+ static inline int rt_genid_ipv6(struct net *net)
+ {
+-	return atomic_read(&net->ipv6.rt_genid);
++	return atomic_read_unchecked(&net->ipv6.rt_genid);
+ }
+ 
+ static inline void rt_genid_bump_ipv6(struct net *net)
+ {
+-	atomic_inc(&net->ipv6.rt_genid);
++	atomic_inc_unchecked(&net->ipv6.rt_genid);
+ }
+ #else
+ static inline int rt_genid_ipv6(struct net *net)
+@@ -385,12 +389,12 @@ static inline void rt_genid_bump_all(struct net *net)
+ 
+ static inline int fnhe_genid(struct net *net)
+ {
+-	return atomic_read(&net->fnhe_genid);
++	return atomic_read_unchecked(&net->fnhe_genid);
+ }
+ 
+ static inline void fnhe_genid_bump(struct net *net)
+ {
+-	atomic_inc(&net->fnhe_genid);
++	atomic_inc_unchecked(&net->fnhe_genid);
+ }
+ 
+ #endif /* __NET_NET_NAMESPACE_H */
+diff --git a/include/net/netdma.h b/include/net/netdma.h
+index 8ba8ce2..99b7fff 100644
+--- a/include/net/netdma.h
++++ b/include/net/netdma.h
+@@ -24,7 +24,7 @@
+ #include <linux/dmaengine.h>
+ #include <linux/skbuff.h>
+ 
+-int dma_skb_copy_datagram_iovec(struct dma_chan* chan,
++int __intentional_overflow(3,5) dma_skb_copy_datagram_iovec(struct dma_chan* chan,
+ 		struct sk_buff *skb, int offset, struct iovec *to,
+ 		size_t len, struct dma_pinned_list *pinned_list);
+ 
+diff --git a/include/net/netlink.h b/include/net/netlink.h
+index 2b47eaa..6d5bcc2 100644
+--- a/include/net/netlink.h
++++ b/include/net/netlink.h
+@@ -521,7 +521,7 @@ static inline void *nlmsg_get_pos(struct sk_buff *skb)
+ static inline void nlmsg_trim(struct sk_buff *skb, const void *mark)
+ {
+ 	if (mark)
+-		skb_trim(skb, (unsigned char *) mark - skb->data);
++		skb_trim(skb, (const unsigned char *) mark - skb->data);
+ }
+ 
+ /**
+diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
+index fbcc7fa..03c7e51 100644
+--- a/include/net/netns/conntrack.h
++++ b/include/net/netns/conntrack.h
+@@ -12,10 +12,10 @@ struct nf_conntrack_ecache;
+ struct nf_proto_net {
+ #ifdef CONFIG_SYSCTL
+ 	struct ctl_table_header *ctl_table_header;
+-	struct ctl_table        *ctl_table;
++	ctl_table_no_const      *ctl_table;
+ #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
+ 	struct ctl_table_header *ctl_compat_header;
+-	struct ctl_table        *ctl_compat_table;
++	ctl_table_no_const      *ctl_compat_table;
+ #endif
+ #endif
+ 	unsigned int		users;
+@@ -58,7 +58,7 @@ struct nf_ip_net {
+ 	struct nf_icmp_net	icmpv6;
+ #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
+ 	struct ctl_table_header *ctl_table_header;
+-	struct ctl_table	*ctl_table;
++	ctl_table_no_const	*ctl_table;
+ #endif
+ };
+ 
+diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
+index 57c2da9..c2fb630 100644
+--- a/include/net/netns/ipv4.h
++++ b/include/net/netns/ipv4.h
+@@ -75,7 +75,7 @@ struct netns_ipv4 {
+ 
+ 	kgid_t sysctl_ping_group_range[2];
+ 
+-	atomic_t dev_addr_genid;
++	atomic_unchecked_t dev_addr_genid;
+ 
+ #ifdef CONFIG_IP_MROUTE
+ #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
+@@ -85,6 +85,6 @@ struct netns_ipv4 {
+ 	struct fib_rules_ops	*mr_rules_ops;
+ #endif
+ #endif
+-	atomic_t	rt_genid;
++	atomic_unchecked_t	rt_genid;
+ };
+ #endif
+diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
+index 21edaf1..4c5faae 100644
+--- a/include/net/netns/ipv6.h
++++ b/include/net/netns/ipv6.h
+@@ -73,8 +73,8 @@ struct netns_ipv6 {
+ 	struct fib_rules_ops	*mr6_rules_ops;
+ #endif
+ #endif
+-	atomic_t		dev_addr_genid;
+-	atomic_t		rt_genid;
++	atomic_unchecked_t	dev_addr_genid;
++	atomic_unchecked_t	rt_genid;
+ };
+ 
+ #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
+diff --git a/include/net/ping.h b/include/net/ping.h
+index 026479b..d9b2829 100644
+--- a/include/net/ping.h
++++ b/include/net/ping.h
+@@ -54,7 +54,7 @@ struct ping_iter_state {
+ 
+ extern struct proto ping_prot;
+ #if IS_ENABLED(CONFIG_IPV6)
+-extern struct pingv6_ops pingv6_ops;
++extern struct pingv6_ops *pingv6_ops;
+ #endif
+ 
+ struct pingfakehdr {
+diff --git a/include/net/protocol.h b/include/net/protocol.h
+index a7e986b..dc67bce 100644
+--- a/include/net/protocol.h
++++ b/include/net/protocol.h
+@@ -49,7 +49,7 @@ struct net_protocol {
+ 				 * socket lookup?
+ 				 */
+ 				icmp_strict_tag_validation:1;
+-};
++} __do_const;
+ 
+ #if IS_ENABLED(CONFIG_IPV6)
+ struct inet6_protocol {
+@@ -62,7 +62,7 @@ struct inet6_protocol {
+ 			       u8 type, u8 code, int offset,
+ 			       __be32 info);
+ 	unsigned int	flags;	/* INET6_PROTO_xxx */
+-};
++} __do_const;
+ 
+ #define INET6_PROTO_NOPOLICY	0x1
+ #define INET6_PROTO_FINAL	0x2
+diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
+index 661e45d..54c39df 100644
+--- a/include/net/rtnetlink.h
++++ b/include/net/rtnetlink.h
+@@ -93,7 +93,7 @@ struct rtnl_link_ops {
+ 	int			(*fill_slave_info)(struct sk_buff *skb,
+ 						   const struct net_device *dev,
+ 						   const struct net_device *slave_dev);
+-};
++} __do_const;
+ 
+ int __rtnl_link_register(struct rtnl_link_ops *ops);
+ void __rtnl_link_unregister(struct rtnl_link_ops *ops);
+diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
+index 4a5b9a3..ca27d73 100644
+--- a/include/net/sctp/checksum.h
++++ b/include/net/sctp/checksum.h
+@@ -61,8 +61,8 @@ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
+ 					unsigned int offset)
+ {
+ 	struct sctphdr *sh = sctp_hdr(skb);
+-        __le32 ret, old = sh->checksum;
+-	const struct skb_checksum_ops ops = {
++	__le32 ret, old = sh->checksum;
++	static const struct skb_checksum_ops ops = {
+ 		.update  = sctp_csum_update,
+ 		.combine = sctp_csum_combine,
+ 	};
+diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
+index 72a31db..aaa63d9 100644
+--- a/include/net/sctp/sm.h
++++ b/include/net/sctp/sm.h
+@@ -80,7 +80,7 @@ typedef void (sctp_timer_event_t) (unsigned long);
+ typedef struct {
+ 	sctp_state_fn_t *fn;
+ 	const char *name;
+-} sctp_sm_table_entry_t;
++} __do_const sctp_sm_table_entry_t;
+ 
+ /* A naming convention of "sctp_sf_xxx" applies to all the state functions
+  * currently in use.
+@@ -292,7 +292,7 @@ __u32 sctp_generate_tag(const struct sctp_endpoint *);
+ __u32 sctp_generate_tsn(const struct sctp_endpoint *);
+ 
+ /* Extern declarations for major data structures.  */
+-extern sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
++extern sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES];
+ 
+ 
+ /* Get the size of a DATA chunk payload. */
+diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
+index 0dfcc92..7967849 100644
+--- a/include/net/sctp/structs.h
++++ b/include/net/sctp/structs.h
+@@ -507,7 +507,7 @@ struct sctp_pf {
+ 					  struct sctp_association *asoc);
+ 	void (*addr_v4map) (struct sctp_sock *, union sctp_addr *);
+ 	struct sctp_af *af;
+-};
++} __do_const;
+ 
+ 
+ /* Structure to track chunk fragments that have been acked, but peer
+diff --git a/include/net/sock.h b/include/net/sock.h
+index 0c79a74..862699f 100644
+--- a/include/net/sock.h
++++ b/include/net/sock.h
+@@ -181,7 +181,8 @@ struct sock_common {
+ 	unsigned short		skc_family;
+ 	volatile unsigned char	skc_state;
+ 	unsigned char		skc_reuse:4;
+-	unsigned char		skc_reuseport:4;
++	unsigned char		skc_reuseport:1;
++	unsigned char		skc_ipv6only:1;
+ 	int			skc_bound_dev_if;
+ 	union {
+ 		struct hlist_node	skc_bind_node;
+@@ -316,6 +317,7 @@ struct sock {
+ #define sk_state		__sk_common.skc_state
+ #define sk_reuse		__sk_common.skc_reuse
+ #define sk_reuseport		__sk_common.skc_reuseport
++#define sk_ipv6only		__sk_common.skc_ipv6only
+ #define sk_bound_dev_if		__sk_common.skc_bound_dev_if
+ #define sk_bind_node		__sk_common.skc_bind_node
+ #define sk_prot			__sk_common.skc_prot
+@@ -348,7 +350,7 @@ struct sock {
+ 	unsigned int		sk_napi_id;
+ 	unsigned int		sk_ll_usec;
+ #endif
+-	atomic_t		sk_drops;
++	atomic_unchecked_t	sk_drops;
+ 	int			sk_rcvbuf;
+ 
+ 	struct sk_filter __rcu	*sk_filter;
+@@ -1035,7 +1037,7 @@ struct proto {
+ 	void			(*destroy_cgroup)(struct mem_cgroup *memcg);
+ 	struct cg_proto		*(*proto_cgroup)(struct mem_cgroup *memcg);
+ #endif
+-};
++} __randomize_layout;
+ 
+ /*
+  * Bits in struct cg_proto.flags
+@@ -1222,7 +1224,7 @@ static inline u64 memcg_memory_allocated_read(struct cg_proto *prot)
+ 	return ret >> PAGE_SHIFT;
+ }
+ 
+-static inline long
++static inline long __intentional_overflow(-1)
+ sk_memory_allocated(const struct sock *sk)
+ {
+ 	struct proto *prot = sk->sk_prot;
+@@ -1367,7 +1369,7 @@ struct sock_iocb {
+ 	struct scm_cookie	*scm;
+ 	struct msghdr		*msg, async_msg;
+ 	struct kiocb		*kiocb;
+-};
++} __randomize_layout;
+ 
+ static inline struct sock_iocb *kiocb_to_siocb(struct kiocb *iocb)
+ {
+@@ -1831,7 +1833,7 @@ static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
+ }
+ 
+ static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
+-					   char __user *from, char *to,
++					   char __user *from, unsigned char *to,
+ 					   int copy, int offset)
+ {
+ 	if (skb->ip_summed == CHECKSUM_NONE) {
+@@ -2093,7 +2095,7 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
+ 	}
+ }
+ 
+-struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
++struct sk_buff * __intentional_overflow(0) sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp);
+ 
+ /**
+  * sk_page_frag - return an appropriate page_frag
+diff --git a/include/net/tcp.h b/include/net/tcp.h
+index 1f0d847..613237a 100644
+--- a/include/net/tcp.h
++++ b/include/net/tcp.h
+@@ -542,7 +542,7 @@ void tcp_retransmit_timer(struct sock *sk);
+ void tcp_xmit_retransmit_queue(struct sock *);
+ void tcp_simple_retransmit(struct sock *);
+ int tcp_trim_head(struct sock *, struct sk_buff *, u32);
+-int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
++int __intentional_overflow(3) tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
+ 
+ void tcp_send_probe0(struct sock *);
+ void tcp_send_partial(struct sock *);
+@@ -711,8 +711,8 @@ struct tcp_skb_cb {
+ 		struct inet6_skb_parm	h6;
+ #endif
+ 	} header;	/* For incoming frames		*/
+-	__u32		seq;		/* Starting sequence number	*/
+-	__u32		end_seq;	/* SEQ + FIN + SYN + datalen	*/
++	__u32		seq __intentional_overflow(0);	/* Starting sequence number	*/
++	__u32		end_seq __intentional_overflow(0);	/* SEQ + FIN + SYN + datalen	*/
+ 	__u32		when;		/* used to compute rtt's	*/
+ 	__u8		tcp_flags;	/* TCP header flags. (tcp[13])	*/
+ 
+@@ -728,7 +728,7 @@ struct tcp_skb_cb {
+ 
+ 	__u8		ip_dsfield;	/* IPv4 tos or IPv6 dsfield	*/
+ 	/* 1 byte hole */
+-	__u32		ack_seq;	/* Sequence number ACK'd	*/
++	__u32		ack_seq __intentional_overflow(0);	/* Sequence number ACK'd	*/
+ };
+ 
+ #define TCP_SKB_CB(__skb)	((struct tcp_skb_cb *)&((__skb)->cb[0]))
+diff --git a/include/net/xfrm.h b/include/net/xfrm.h
+index fb5654a..4457522 100644
+--- a/include/net/xfrm.h
++++ b/include/net/xfrm.h
+@@ -286,7 +286,6 @@ struct xfrm_dst;
+ struct xfrm_policy_afinfo {
+ 	unsigned short		family;
+ 	struct dst_ops		*dst_ops;
+-	void			(*garbage_collect)(struct net *net);
+ 	struct dst_entry	*(*dst_lookup)(struct net *net, int tos,
+ 					       const xfrm_address_t *saddr,
+ 					       const xfrm_address_t *daddr);
+@@ -304,7 +303,7 @@ struct xfrm_policy_afinfo {
+ 					    struct net_device *dev,
+ 					    const struct flowi *fl);
+ 	struct dst_entry	*(*blackhole_route)(struct net *net, struct dst_entry *orig);
+-};
++} __do_const;
+ 
+ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
+ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
+@@ -343,7 +342,7 @@ struct xfrm_state_afinfo {
+ 	int			(*transport_finish)(struct sk_buff *skb,
+ 						    int async);
+ 	void			(*local_error)(struct sk_buff *skb, u32 mtu);
+-};
++} __do_const;
+ 
+ int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
+ int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
+@@ -428,7 +427,7 @@ struct xfrm_mode {
+ 	struct module *owner;
+ 	unsigned int encap;
+ 	int flags;
+-};
++} __do_const;
+ 
+ /* Flags for xfrm_mode. */
+ enum {
+@@ -525,7 +524,7 @@ struct xfrm_policy {
+ 	struct timer_list	timer;
+ 
+ 	struct flow_cache_object flo;
+-	atomic_t		genid;
++	atomic_unchecked_t	genid;
+ 	u32			priority;
+ 	u32			index;
+ 	struct xfrm_mark	mark;
+@@ -1165,6 +1164,7 @@ static inline void xfrm_sk_free_policy(struct sock *sk)
+ }
+ 
+ void xfrm_garbage_collect(struct net *net);
++void xfrm_garbage_collect_deferred(struct net *net);
+ 
+ #else
+ 
+@@ -1203,6 +1203,9 @@ static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir,
+ static inline void xfrm_garbage_collect(struct net *net)
+ {
+ }
++static inline void xfrm_garbage_collect_deferred(struct net *net)
++{
++}
+ #endif
+ 
+ static __inline__
+diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
+index 1017e0b..227aa4d 100644
+--- a/include/rdma/iw_cm.h
++++ b/include/rdma/iw_cm.h
+@@ -122,7 +122,7 @@ struct iw_cm_verbs {
+ 					 int backlog);
+ 
+ 	int		(*destroy_listen)(struct iw_cm_id *cm_id);
+-};
++} __no_const;
+ 
+ /**
+  * iw_create_cm_id - Create an IW CM identifier.
+diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
+index 52beadf..598734c 100644
+--- a/include/scsi/libfc.h
++++ b/include/scsi/libfc.h
+@@ -771,6 +771,7 @@ struct libfc_function_template {
+ 	 */
+ 	void (*disc_stop_final) (struct fc_lport *);
+ };
++typedef struct libfc_function_template __no_const libfc_function_template_no_const;
+ 
+ /**
+  * struct fc_disc - Discovery context
+@@ -875,7 +876,7 @@ struct fc_lport {
+ 	struct fc_vport		       *vport;
+ 
+ 	/* Operational Information */
+-	struct libfc_function_template tt;
++	libfc_function_template_no_const tt;
+ 	u8			       link_up;
+ 	u8			       qfull;
+ 	enum fc_lport_state	       state;
+diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
+index 409fafb..efc53b0 100644
+--- a/include/scsi/scsi_device.h
++++ b/include/scsi/scsi_device.h
+@@ -181,9 +181,9 @@ struct scsi_device {
+ 	unsigned int max_device_blocked; /* what device_blocked counts down from  */
+ #define SCSI_DEFAULT_DEVICE_BLOCKED	3
+ 
+-	atomic_t iorequest_cnt;
+-	atomic_t iodone_cnt;
+-	atomic_t ioerr_cnt;
++	atomic_unchecked_t iorequest_cnt;
++	atomic_unchecked_t iodone_cnt;
++	atomic_unchecked_t ioerr_cnt;
+ 
+ 	struct device		sdev_gendev,
+ 				sdev_dev;
+diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
+index b797e8f..8e2c3aa 100644
+--- a/include/scsi/scsi_transport_fc.h
++++ b/include/scsi/scsi_transport_fc.h
+@@ -751,7 +751,8 @@ struct fc_function_template {
+ 	unsigned long	show_host_system_hostname:1;
+ 
+ 	unsigned long	disable_target_scan:1;
+-};
++} __do_const;
++typedef struct fc_function_template __no_const fc_function_template_no_const;
+ 
+ 
+ /**
+diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
+index ae6c3b8..fd748ac 100644
+--- a/include/sound/compress_driver.h
++++ b/include/sound/compress_driver.h
+@@ -128,7 +128,7 @@ struct snd_compr_ops {
+ 			struct snd_compr_caps *caps);
+ 	int (*get_codec_caps) (struct snd_compr_stream *stream,
+ 			struct snd_compr_codec_caps *codec);
+-};
++} __no_const;
+ 
+ /**
+  * struct snd_compr: Compressed device
+diff --git a/include/sound/soc.h b/include/sound/soc.h
+index 9a00147..d814573 100644
+--- a/include/sound/soc.h
++++ b/include/sound/soc.h
+@@ -770,7 +770,7 @@ struct snd_soc_codec_driver {
+ 	/* probe ordering - for components with runtime dependencies */
+ 	int probe_order;
+ 	int remove_order;
+-};
++} __do_const;
+ 
+ /* SoC platform interface */
+ struct snd_soc_platform_driver {
+@@ -816,7 +816,7 @@ struct snd_soc_platform_driver {
+ 	unsigned int (*read)(struct snd_soc_platform *, unsigned int);
+ 	int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
+ 	int (*bespoke_trigger)(struct snd_pcm_substream *, int);
+-};
++} __do_const;
+ 
+ struct snd_soc_platform {
+ 	const char *name;
+diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
+index e4b9e01..bc9fff0 100644
+--- a/include/target/target_core_base.h
++++ b/include/target/target_core_base.h
+@@ -754,7 +754,7 @@ struct se_device {
+ 	atomic_long_t		write_bytes;
+ 	/* Active commands on this virtual SE device */
+ 	atomic_t		simple_cmds;
+-	atomic_t		dev_ordered_id;
++	atomic_unchecked_t	dev_ordered_id;
+ 	atomic_t		dev_ordered_sync;
+ 	atomic_t		dev_qf_count;
+ 	int			export_count;
+diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
+new file mode 100644
+index 0000000..fb634b7
+--- /dev/null
++++ b/include/trace/events/fs.h
+@@ -0,0 +1,53 @@
++#undef TRACE_SYSTEM
++#define TRACE_SYSTEM fs
++
++#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
++#define _TRACE_FS_H
++
++#include <linux/fs.h>
++#include <linux/tracepoint.h>
++
++TRACE_EVENT(do_sys_open,
++
++	TP_PROTO(const char *filename, int flags, int mode),
++
++	TP_ARGS(filename, flags, mode),
++
++	TP_STRUCT__entry(
++		__string(	filename, filename		)
++		__field(	int, flags			)
++		__field(	int, mode			)
++	),
++
++	TP_fast_assign(
++		__assign_str(filename, filename);
++		__entry->flags = flags;
++		__entry->mode = mode;
++	),
++
++	TP_printk("\"%s\" %x %o",
++		  __get_str(filename), __entry->flags, __entry->mode)
++);
++
++TRACE_EVENT(open_exec,
++
++	TP_PROTO(const char *filename),
++
++	TP_ARGS(filename),
++
++	TP_STRUCT__entry(
++		__string(	filename, filename		)
++	),
++
++	TP_fast_assign(
++		__assign_str(filename, filename);
++	),
++
++	TP_printk("\"%s\"",
++		  __get_str(filename))
++);
++
++#endif /* _TRACE_FS_H */
++
++/* This part must be outside protection */
++#include <trace/define_trace.h>
+diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
+index 1c09820..7f5ec79 100644
+--- a/include/trace/events/irq.h
++++ b/include/trace/events/irq.h
+@@ -36,7 +36,7 @@ struct softirq_action;
+  */
+ TRACE_EVENT(irq_handler_entry,
+ 
+-	TP_PROTO(int irq, struct irqaction *action),
++	TP_PROTO(int irq, const struct irqaction *action),
+ 
+ 	TP_ARGS(irq, action),
+ 
+@@ -66,7 +66,7 @@ TRACE_EVENT(irq_handler_entry,
+  */
+ TRACE_EVENT(irq_handler_exit,
+ 
+-	TP_PROTO(int irq, struct irqaction *action, int ret),
++	TP_PROTO(int irq, const struct irqaction *action, int ret),
+ 
+ 	TP_ARGS(irq, action, ret),
+ 
+diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
+index 7caf44c..23c6f27 100644
+--- a/include/uapi/linux/a.out.h
++++ b/include/uapi/linux/a.out.h
+@@ -39,6 +39,14 @@ enum machine_type {
+   M_MIPS2 = 152		/* MIPS R6000/R4000 binary */
+ };
+ 
++/* Constants for the N_FLAGS field */
++#define F_PAX_PAGEEXEC	1	/* Paging based non-executable pages */
++#define F_PAX_EMUTRAMP	2	/* Emulate trampolines */
++#define F_PAX_MPROTECT	4	/* Restrict mprotect() */
++#define F_PAX_RANDMMAP	8	/* Randomize mmap() base */
++/*#define F_PAX_RANDEXEC	16*/	/* Randomize ET_EXEC base */
++#define F_PAX_SEGMEXEC	32	/* Segmentation based non-executable pages */
++
+ #if !defined (N_MAGIC)
+ #define N_MAGIC(exec) ((exec).a_info & 0xffff)
+ #endif
+diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
+index 22b6ad3..aeba37e 100644
+--- a/include/uapi/linux/bcache.h
++++ b/include/uapi/linux/bcache.h
+@@ -5,6 +5,7 @@
+  * Bcache on disk data structures
+  */
+ 
++#include <linux/compiler.h>
+ #include <asm/types.h>
+ 
+ #define BITMASK(name, type, field, offset, size)		\
+@@ -20,8 +21,8 @@ static inline void SET_##name(type *k, __u64 v)			\
+ /* Btree keys - all units are in sectors */
+ 
+ struct bkey {
+-	__u64	high;
+-	__u64	low;
++	__u64	high __intentional_overflow(-1);
++	__u64	low __intentional_overflow(-1);
+ 	__u64	ptr[];
+ };
+ 
+diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
+index d876736..ccce5c0 100644
+--- a/include/uapi/linux/byteorder/little_endian.h
++++ b/include/uapi/linux/byteorder/little_endian.h
+@@ -42,51 +42,51 @@
+ 
+ static inline __le64 __cpu_to_le64p(const __u64 *p)
+ {
+-	return (__force __le64)*p;
++	return (__force const __le64)*p;
+ }
+-static inline __u64 __le64_to_cpup(const __le64 *p)
++static inline __u64 __intentional_overflow(-1) __le64_to_cpup(const __le64 *p)
+ {
+-	return (__force __u64)*p;
++	return (__force const __u64)*p;
+ }
+ static inline __le32 __cpu_to_le32p(const __u32 *p)
+ {
+-	return (__force __le32)*p;
++	return (__force const __le32)*p;
+ }
+ static inline __u32 __le32_to_cpup(const __le32 *p)
+ {
+-	return (__force __u32)*p;
++	return (__force const __u32)*p;
+ }
+ static inline __le16 __cpu_to_le16p(const __u16 *p)
+ {
+-	return (__force __le16)*p;
++	return (__force const __le16)*p;
+ }
+ static inline __u16 __le16_to_cpup(const __le16 *p)
+ {
+-	return (__force __u16)*p;
++	return (__force const __u16)*p;
+ }
+ static inline __be64 __cpu_to_be64p(const __u64 *p)
+ {
+-	return (__force __be64)__swab64p(p);
++	return (__force const __be64)__swab64p(p);
+ }
+ static inline __u64 __be64_to_cpup(const __be64 *p)
+ {
+-	return __swab64p((__u64 *)p);
++	return __swab64p((const __u64 *)p);
+ }
+ static inline __be32 __cpu_to_be32p(const __u32 *p)
+ {
+-	return (__force __be32)__swab32p(p);
++	return (__force const __be32)__swab32p(p);
+ }
+-static inline __u32 __be32_to_cpup(const __be32 *p)
++static inline __u32 __intentional_overflow(-1) __be32_to_cpup(const __be32 *p)
+ {
+-	return __swab32p((__u32 *)p);
++	return __swab32p((const __u32 *)p);
+ }
+ static inline __be16 __cpu_to_be16p(const __u16 *p)
+ {
+-	return (__force __be16)__swab16p(p);
++	return (__force const __be16)__swab16p(p);
+ }
+ static inline __u16 __be16_to_cpup(const __be16 *p)
+ {
+-	return __swab16p((__u16 *)p);
++	return __swab16p((const __u16 *)p);
+ }
+ #define __cpu_to_le64s(x) do { (void)(x); } while (0)
+ #define __le64_to_cpus(x) do { (void)(x); } while (0)
+diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
+index ef6103b..d4e65dd 100644
+--- a/include/uapi/linux/elf.h
++++ b/include/uapi/linux/elf.h
+@@ -37,6 +37,17 @@ typedef __s64	Elf64_Sxword;
+ #define PT_GNU_EH_FRAME		0x6474e550
+ 
+ #define PT_GNU_STACK	(PT_LOOS + 0x474e551)
++#define PT_GNU_RELRO	(PT_LOOS + 0x474e552)
++
++#define PT_PAX_FLAGS	(PT_LOOS + 0x5041580)
++
++/* Constants for the e_flags field */
++#define EF_PAX_PAGEEXEC		1	/* Paging based non-executable pages */
++#define EF_PAX_EMUTRAMP		2	/* Emulate trampolines */
++#define EF_PAX_MPROTECT		4	/* Restrict mprotect() */
++#define EF_PAX_RANDMMAP		8	/* Randomize mmap() base */
++/*#define EF_PAX_RANDEXEC		16*/	/* Randomize ET_EXEC base */
++#define EF_PAX_SEGMEXEC		32	/* Segmentation based non-executable pages */
+ 
+ /*
+  * Extended Numbering
+@@ -94,6 +105,8 @@ typedef __s64	Elf64_Sxword;
+ #define DT_DEBUG	21
+ #define DT_TEXTREL	22
+ #define DT_JMPREL	23
++#define DT_FLAGS	30
++  #define DF_TEXTREL  0x00000004
+ #define DT_ENCODING	32
+ #define OLD_DT_LOOS	0x60000000
+ #define DT_LOOS		0x6000000d
+@@ -240,6 +253,19 @@ typedef struct elf64_hdr {
+ #define PF_W		0x2
+ #define PF_X		0x1
+ 
++#define PF_PAGEEXEC	(1U << 4)	/* Enable  PAGEEXEC */
++#define PF_NOPAGEEXEC	(1U << 5)	/* Disable PAGEEXEC */
++#define PF_SEGMEXEC	(1U << 6)	/* Enable  SEGMEXEC */
++#define PF_NOSEGMEXEC	(1U << 7)	/* Disable SEGMEXEC */
++#define PF_MPROTECT	(1U << 8)	/* Enable  MPROTECT */
++#define PF_NOMPROTECT	(1U << 9)	/* Disable MPROTECT */
++/*#define PF_RANDEXEC	(1U << 10)*/	/* Enable  RANDEXEC */
++/*#define PF_NORANDEXEC	(1U << 11)*/	/* Disable RANDEXEC */
++#define PF_EMUTRAMP	(1U << 12)	/* Enable  EMUTRAMP */
++#define PF_NOEMUTRAMP	(1U << 13)	/* Disable EMUTRAMP */
++#define PF_RANDMMAP	(1U << 14)	/* Enable  RANDMMAP */
++#define PF_NORANDMMAP	(1U << 15)	/* Disable RANDMMAP */
++
+ typedef struct elf32_phdr{
+   Elf32_Word	p_type;
+   Elf32_Off	p_offset;
+@@ -332,6 +358,8 @@ typedef struct elf64_shdr {
+ #define	EI_OSABI	7
+ #define	EI_PAD		8
+ 
++#define	EI_PAX		14
++
+ #define	ELFMAG0		0x7f		/* EI_MAG */
+ #define	ELFMAG1		'E'
+ #define	ELFMAG2		'L'
+diff --git a/include/uapi/linux/netfilter/xt_connlimit.h b/include/uapi/linux/netfilter/xt_connlimit.h
+index f165609..d1366f0 100644
+--- a/include/uapi/linux/netfilter/xt_connlimit.h
++++ b/include/uapi/linux/netfilter/xt_connlimit.h
+@@ -22,8 +22,13 @@ struct xt_connlimit_info {
+ #endif
+ 	};
+ 	unsigned int limit;
+-	/* revision 1 */
+-	__u32 flags;
++	union {
++		/* revision 0 */
++		unsigned int inverse;
++
++		/* revision 1 */
++		__u32 flags;
++	};
+ 
+ 	/* Used internally by the kernel */
+ 	struct xt_connlimit_data *data __attribute__((aligned(8)));
+diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
+index aa169c4..6a2771d 100644
+--- a/include/uapi/linux/personality.h
++++ b/include/uapi/linux/personality.h
+@@ -30,6 +30,7 @@ enum {
+ #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC  | \
+ 			    ADDR_NO_RANDOMIZE  | \
+ 			    ADDR_COMPAT_LAYOUT | \
++			    ADDR_LIMIT_3GB     | \
+ 			    MMAP_PAGE_ZERO)
+ 
+ /*
+diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
+index 7530e74..e714828 100644
+--- a/include/uapi/linux/screen_info.h
++++ b/include/uapi/linux/screen_info.h
+@@ -43,7 +43,8 @@ struct screen_info {
+ 	__u16 pages;		/* 0x32 */
+ 	__u16 vesa_attributes;	/* 0x34 */
+ 	__u32 capabilities;     /* 0x36 */
+-	__u8  _reserved[6];	/* 0x3a */
++	__u16 vesapm_size;	/* 0x3a */
++	__u8  _reserved[4];	/* 0x3c */
+ } __attribute__((packed));
+ 
+ #define VIDEO_TYPE_MDA		0x10	/* Monochrome Text Display	*/
+diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
+index 0e011eb..82681b1 100644
+--- a/include/uapi/linux/swab.h
++++ b/include/uapi/linux/swab.h
+@@ -43,7 +43,7 @@
+  * ___swab16, ___swab32, ___swab64, ___swahw32, ___swahb32
+  */
+ 
+-static inline __attribute_const__ __u16 __fswab16(__u16 val)
++static inline __intentional_overflow(-1) __attribute_const__ __u16 __fswab16(__u16 val)
+ {
+ #ifdef __HAVE_BUILTIN_BSWAP16__
+ 	return __builtin_bswap16(val);
+@@ -54,7 +54,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
+ #endif
+ }
+ 
+-static inline __attribute_const__ __u32 __fswab32(__u32 val)
++static inline __intentional_overflow(-1) __attribute_const__ __u32 __fswab32(__u32 val)
+ {
+ #ifdef __HAVE_BUILTIN_BSWAP32__
+ 	return __builtin_bswap32(val);
+@@ -65,7 +65,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
+ #endif
+ }
+ 
+-static inline __attribute_const__ __u64 __fswab64(__u64 val)
++static inline __intentional_overflow(-1) __attribute_const__ __u64 __fswab64(__u64 val)
+ {
+ #ifdef __HAVE_BUILTIN_BSWAP64__
+ 	return __builtin_bswap64(val);
+diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h
+index 6d67213..552fdd9 100644
+--- a/include/uapi/linux/sysctl.h
++++ b/include/uapi/linux/sysctl.h
+@@ -155,8 +155,6 @@ enum
+ 	KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */
+ };
+ 
+-
+-
+ /* CTL_VM names: */
+ enum
+ {
+diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
+index fe94bb9..c9e51c2 100644
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -1227,7 +1227,7 @@ struct v4l2_ext_control {
+ 	union {
+ 		__s32 value;
+ 		__s64 value64;
+-		char *string;
++		char __user *string;
+ 	};
+ } __attribute__ ((packed));
+ 
+diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
+index 1590c49..5eab462 100644
+--- a/include/uapi/linux/xattr.h
++++ b/include/uapi/linux/xattr.h
+@@ -73,5 +73,9 @@
+ #define XATTR_POSIX_ACL_DEFAULT  "posix_acl_default"
+ #define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT
+ 
++/* User namespace */
++#define XATTR_PAX_PREFIX XATTR_USER_PREFIX "pax."
++#define XATTR_PAX_FLAGS_SUFFIX "flags"
++#define XATTR_NAME_PAX_FLAGS XATTR_PAX_PREFIX XATTR_PAX_FLAGS_SUFFIX
+ 
+ #endif /* _UAPI_LINUX_XATTR_H */
+diff --git a/include/video/udlfb.h b/include/video/udlfb.h
+index f9466fa..f4e2b81 100644
+--- a/include/video/udlfb.h
++++ b/include/video/udlfb.h
+@@ -53,10 +53,10 @@ struct dlfb_data {
+ 	u32 pseudo_palette[256];
+ 	int blank_mode; /*one of FB_BLANK_ */
+ 	/* blit-only rendering path metrics, exposed through sysfs */
+-	atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
+-	atomic_t bytes_identical; /* saved effort with backbuffer comparison */
+-	atomic_t bytes_sent; /* to usb, after compression including overhead */
+-	atomic_t cpu_kcycles_used; /* transpired during pixel processing */
++	atomic_unchecked_t bytes_rendered; /* raw pixel-bytes driver asked to render */
++	atomic_unchecked_t bytes_identical; /* saved effort with backbuffer comparison */
++	atomic_unchecked_t bytes_sent; /* to usb, after compression including overhead */
++	atomic_unchecked_t cpu_kcycles_used; /* transpired during pixel processing */
+ };
+ 
+ #define NR_USB_REQUEST_I2C_SUB_IO 0x02
+diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
+index 30f5362..8ed8ac9 100644
+--- a/include/video/uvesafb.h
++++ b/include/video/uvesafb.h
+@@ -122,6 +122,7 @@ struct uvesafb_par {
+ 	u8 ypan;			/* 0 - nothing, 1 - ypan, 2 - ywrap */
+ 	u8 pmi_setpal;			/* PMI for palette changes */
+ 	u16 *pmi_base;			/* protected mode interface location */
++	u8 *pmi_code;			/* protected mode code location */
+ 	void *pmi_start;
+ 	void *pmi_pal;
+ 	u8 *vbe_state_orig;		/*
+diff --git a/init/Kconfig b/init/Kconfig
+index 8b9521a..8a3cc34d 100644
+--- a/init/Kconfig
++++ b/init/Kconfig
+@@ -1079,6 +1079,7 @@ endif # CGROUPS
+ 
+ config CHECKPOINT_RESTORE
+ 	bool "Checkpoint/restore support" if EXPERT
++	depends on !GRKERNSEC
+ 	default n
+ 	help
+ 	  Enables additional kernel features in a sake of checkpoint/restore.
+@@ -1546,7 +1547,7 @@ config SLUB_DEBUG
+ 
+ config COMPAT_BRK
+ 	bool "Disable heap randomization"
+-	default y
++	default n
+ 	help
+ 	  Randomizing heap placement makes heap exploits harder, but it
+ 	  also breaks ancient binaries (including anything libc5 based).
+@@ -1834,7 +1835,7 @@ config INIT_ALL_POSSIBLE
+ config STOP_MACHINE
+ 	bool
+ 	default y
+-	depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
++	depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU || GRKERNSEC
+ 	help
+ 	  Need stop_machine() primitive.
+ 
+diff --git a/init/Makefile b/init/Makefile
+index 7bc47ee..6da2dc7 100644
+--- a/init/Makefile
++++ b/init/Makefile
+@@ -2,6 +2,9 @@
+ # Makefile for the linux kernel.
+ #
+ 
++ccflags-y := $(GCC_PLUGINS_CFLAGS)
++asflags-y := $(GCC_PLUGINS_AFLAGS)
++
+ obj-y                          := main.o version.o mounts.o
+ ifneq ($(CONFIG_BLK_DEV_INITRD),y)
+ obj-y                          += noinitramfs.o
+diff --git a/init/do_mounts.c b/init/do_mounts.c
+index 8e5addc..c96ea61 100644
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -359,11 +359,11 @@ static void __init get_fs_names(char *page)
+ static int __init do_mount_root(char *name, char *fs, int flags, void *data)
+ {
+ 	struct super_block *s;
+-	int err = sys_mount(name, "/root", fs, flags, data);
++	int err = sys_mount((char __force_user *)name, (char __force_user *)"/root", (char __force_user *)fs, flags, (void __force_user *)data);
+ 	if (err)
+ 		return err;
+ 
+-	sys_chdir("/root");
++	sys_chdir((const char __force_user *)"/root");
+ 	s = current->fs->pwd.dentry->d_sb;
+ 	ROOT_DEV = s->s_dev;
+ 	printk(KERN_INFO
+@@ -484,18 +484,18 @@ void __init change_floppy(char *fmt, ...)
+ 	va_start(args, fmt);
+ 	vsprintf(buf, fmt, args);
+ 	va_end(args);
+-	fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0);
++	fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0);
+ 	if (fd >= 0) {
+ 		sys_ioctl(fd, FDEJECT, 0);
+ 		sys_close(fd);
+ 	}
+ 	printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf);
+-	fd = sys_open("/dev/console", O_RDWR, 0);
++	fd = sys_open((__force const char __user *)"/dev/console", O_RDWR, 0);
+ 	if (fd >= 0) {
+ 		sys_ioctl(fd, TCGETS, (long)&termios);
+ 		termios.c_lflag &= ~ICANON;
+ 		sys_ioctl(fd, TCSETSF, (long)&termios);
+-		sys_read(fd, &c, 1);
++		sys_read(fd, (char __user *)&c, 1);
+ 		termios.c_lflag |= ICANON;
+ 		sys_ioctl(fd, TCSETSF, (long)&termios);
+ 		sys_close(fd);
+@@ -589,8 +589,8 @@ void __init prepare_namespace(void)
+ 	mount_root();
+ out:
+ 	devtmpfs_mount("dev");
+-	sys_mount(".", "/", NULL, MS_MOVE, NULL);
+-	sys_chroot(".");
++	sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
++	sys_chroot((const char __force_user *)".");
+ }
+ 
+ static bool is_tmpfs;
+diff --git a/init/do_mounts.h b/init/do_mounts.h
+index f5b978a..69dbfe8 100644
+--- a/init/do_mounts.h
++++ b/init/do_mounts.h
+@@ -15,15 +15,15 @@ extern int root_mountflags;
+ 
+ static inline int create_dev(char *name, dev_t dev)
+ {
+-	sys_unlink(name);
+-	return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
++	sys_unlink((char __force_user *)name);
++	return sys_mknod((char __force_user *)name, S_IFBLK|0600, new_encode_dev(dev));
+ }
+ 
+ #if BITS_PER_LONG == 32
+ static inline u32 bstat(char *name)
+ {
+ 	struct stat64 stat;
+-	if (sys_stat64(name, &stat) != 0)
++	if (sys_stat64((char __force_user *)name, (struct stat64 __force_user *)&stat) != 0)
+ 		return 0;
+ 	if (!S_ISBLK(stat.st_mode))
+ 		return 0;
+@@ -35,7 +35,7 @@ static inline u32 bstat(char *name)
+ static inline u32 bstat(char *name)
+ {
+ 	struct stat stat;
+-	if (sys_newstat(name, &stat) != 0)
++	if (sys_newstat((const char __force_user *)name, (struct stat __force_user *)&stat) != 0)
+ 		return 0;
+ 	if (!S_ISBLK(stat.st_mode))
+ 		return 0;
+diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
+index 3e0878e..8a9d7a0 100644
+--- a/init/do_mounts_initrd.c
++++ b/init/do_mounts_initrd.c
+@@ -37,13 +37,13 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
+ {
+ 	sys_unshare(CLONE_FS | CLONE_FILES);
+ 	/* stdin/stdout/stderr for /linuxrc */
+-	sys_open("/dev/console", O_RDWR, 0);
++	sys_open((const char __force_user *)"/dev/console", O_RDWR, 0);
+ 	sys_dup(0);
+ 	sys_dup(0);
+ 	/* move initrd over / and chdir/chroot in initrd root */
+-	sys_chdir("/root");
+-	sys_mount(".", "/", NULL, MS_MOVE, NULL);
+-	sys_chroot(".");
++	sys_chdir((const char __force_user *)"/root");
++	sys_mount((char __force_user *)".", (char __force_user *)"/", NULL, MS_MOVE, NULL);
++	sys_chroot((const char __force_user *)".");
+ 	sys_setsid();
+ 	return 0;
+ }
+@@ -59,8 +59,8 @@ static void __init handle_initrd(void)
+ 	create_dev("/dev/root.old", Root_RAM0);
+ 	/* mount initrd on rootfs' /root */
+ 	mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
+-	sys_mkdir("/old", 0700);
+-	sys_chdir("/old");
++	sys_mkdir((const char __force_user *)"/old", 0700);
++	sys_chdir((const char __force_user *)"/old");
+ 
+ 	/* try loading default modules from initrd */
+ 	load_default_modules();
+@@ -80,31 +80,31 @@ static void __init handle_initrd(void)
+ 	current->flags &= ~PF_FREEZER_SKIP;
+ 
+ 	/* move initrd to rootfs' /old */
+-	sys_mount("..", ".", NULL, MS_MOVE, NULL);
++	sys_mount((char __force_user *)"..", (char __force_user *)".", NULL, MS_MOVE, NULL);
+ 	/* switch root and cwd back to / of rootfs */
+-	sys_chroot("..");
++	sys_chroot((const char __force_user *)"..");
+ 
+ 	if (new_decode_dev(real_root_dev) == Root_RAM0) {
+-		sys_chdir("/old");
++		sys_chdir((const char __force_user *)"/old");
+ 		return;
+ 	}
+ 
+-	sys_chdir("/");
++	sys_chdir((const char __force_user *)"/");
+ 	ROOT_DEV = new_decode_dev(real_root_dev);
+ 	mount_root();
+ 
+ 	printk(KERN_NOTICE "Trying to move old root to /initrd ... ");
+-	error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL);
++	error = sys_mount((char __force_user *)"/old", (char __force_user *)"/root/initrd", NULL, MS_MOVE, NULL);
+ 	if (!error)
+ 		printk("okay\n");
+ 	else {
+-		int fd = sys_open("/dev/root.old", O_RDWR, 0);
++		int fd = sys_open((const char __force_user *)"/dev/root.old", O_RDWR, 0);
+ 		if (error == -ENOENT)
+ 			printk("/initrd does not exist. Ignored.\n");
+ 		else
+ 			printk("failed\n");
+ 		printk(KERN_NOTICE "Unmounting old root\n");
+-		sys_umount("/old", MNT_DETACH);
++		sys_umount((char __force_user *)"/old", MNT_DETACH);
+ 		printk(KERN_NOTICE "Trying to free ramdisk memory ... ");
+ 		if (fd < 0) {
+ 			error = fd;
+@@ -127,11 +127,11 @@ int __init initrd_load(void)
+ 		 * mounted in the normal path.
+ 		 */
+ 		if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) {
+-			sys_unlink("/initrd.image");
++			sys_unlink((const char __force_user *)"/initrd.image");
+ 			handle_initrd();
+ 			return 1;
+ 		}
+ 	}
+-	sys_unlink("/initrd.image");
++	sys_unlink((const char __force_user *)"/initrd.image");
+ 	return 0;
+ }
+diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
+index 8cb6db5..d729f50 100644
+--- a/init/do_mounts_md.c
++++ b/init/do_mounts_md.c
+@@ -180,7 +180,7 @@ static void __init md_setup_drive(void)
+ 			partitioned ? "_d" : "", minor,
+ 			md_setup_args[ent].device_names);
+ 
+-		fd = sys_open(name, 0, 0);
++		fd = sys_open((char __force_user *)name, 0, 0);
+ 		if (fd < 0) {
+ 			printk(KERN_ERR "md: open failed - cannot start "
+ 					"array %s\n", name);
+@@ -243,7 +243,7 @@ static void __init md_setup_drive(void)
+ 			 * array without it
+ 			 */
+ 			sys_close(fd);
+-			fd = sys_open(name, 0, 0);
++			fd = sys_open((char __force_user *)name, 0, 0);
+ 			sys_ioctl(fd, BLKRRPART, 0);
+ 		}
+ 		sys_close(fd);
+@@ -293,7 +293,7 @@ static void __init autodetect_raid(void)
+ 
+ 	wait_for_device_probe();
+ 
+-	fd = sys_open("/dev/md0", 0, 0);
++	fd = sys_open((const char __force_user *) "/dev/md0", 0, 0);
+ 	if (fd >= 0) {
+ 		sys_ioctl(fd, RAID_AUTORUN, raid_autopart);
+ 		sys_close(fd);
+diff --git a/init/init_task.c b/init/init_task.c
+index ba0a7f36..2bcf1d5 100644
+--- a/init/init_task.c
++++ b/init/init_task.c
+@@ -22,5 +22,9 @@ EXPORT_SYMBOL(init_task);
+  * Initial thread structure. Alignment of this is handled by a special
+  * linker map entry.
+  */
++#ifdef CONFIG_X86
++union thread_union init_thread_union __init_task_data;
++#else
+ union thread_union init_thread_union __init_task_data =
+ 	{ INIT_THREAD_INFO(init_task) };
++#endif
+diff --git a/init/initramfs.c b/init/initramfs.c
+index 93b6139..8d628b7 100644
+--- a/init/initramfs.c
++++ b/init/initramfs.c
+@@ -84,7 +84,7 @@ static void __init free_hash(void)
+ 	}
+ }
+ 
+-static long __init do_utime(char *filename, time_t mtime)
++static long __init do_utime(char __force_user *filename, time_t mtime)
+ {
+ 	struct timespec t[2];
+ 
+@@ -119,7 +119,7 @@ static void __init dir_utime(void)
+ 	struct dir_entry *de, *tmp;
+ 	list_for_each_entry_safe(de, tmp, &dir_list, list) {
+ 		list_del(&de->list);
+-		do_utime(de->name, de->mtime);
++		do_utime((char __force_user *)de->name, de->mtime);
+ 		kfree(de->name);
+ 		kfree(de);
+ 	}
+@@ -281,7 +281,7 @@ static int __init maybe_link(void)
+ 	if (nlink >= 2) {
+ 		char *old = find_link(major, minor, ino, mode, collected);
+ 		if (old)
+-			return (sys_link(old, collected) < 0) ? -1 : 1;
++			return (sys_link((char __force_user *)old, (char __force_user *)collected) < 0) ? -1 : 1;
+ 	}
+ 	return 0;
+ }
+@@ -290,11 +290,11 @@ static void __init clean_path(char *path, umode_t mode)
+ {
+ 	struct stat st;
+ 
+-	if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) {
++	if (!sys_newlstat((char __force_user *)path, (struct stat __force_user *)&st) && (st.st_mode^mode) & S_IFMT) {
+ 		if (S_ISDIR(st.st_mode))
+-			sys_rmdir(path);
++			sys_rmdir((char __force_user *)path);
+ 		else
+-			sys_unlink(path);
++			sys_unlink((char __force_user *)path);
+ 	}
+ }
+ 
+@@ -315,7 +315,7 @@ static int __init do_name(void)
+ 			int openflags = O_WRONLY|O_CREAT;
+ 			if (ml != 1)
+ 				openflags |= O_TRUNC;
+-			wfd = sys_open(collected, openflags, mode);
++			wfd = sys_open((char __force_user *)collected, openflags, mode);
+ 
+ 			if (wfd >= 0) {
+ 				sys_fchown(wfd, uid, gid);
+@@ -327,17 +327,17 @@ static int __init do_name(void)
+ 			}
+ 		}
+ 	} else if (S_ISDIR(mode)) {
+-		sys_mkdir(collected, mode);
+-		sys_chown(collected, uid, gid);
+-		sys_chmod(collected, mode);
++		sys_mkdir((char __force_user *)collected, mode);
++		sys_chown((char __force_user *)collected, uid, gid);
++		sys_chmod((char __force_user *)collected, mode);
+ 		dir_add(collected, mtime);
+ 	} else if (S_ISBLK(mode) || S_ISCHR(mode) ||
+ 		   S_ISFIFO(mode) || S_ISSOCK(mode)) {
+ 		if (maybe_link() == 0) {
+-			sys_mknod(collected, mode, rdev);
+-			sys_chown(collected, uid, gid);
+-			sys_chmod(collected, mode);
+-			do_utime(collected, mtime);
++			sys_mknod((char __force_user *)collected, mode, rdev);
++			sys_chown((char __force_user *)collected, uid, gid);
++			sys_chmod((char __force_user *)collected, mode);
++			do_utime((char __force_user *)collected, mtime);
+ 		}
+ 	}
+ 	return 0;
+@@ -346,15 +346,15 @@ static int __init do_name(void)
+ static int __init do_copy(void)
+ {
+ 	if (count >= body_len) {
+-		sys_write(wfd, victim, body_len);
++		sys_write(wfd, (char __force_user *)victim, body_len);
+ 		sys_close(wfd);
+-		do_utime(vcollected, mtime);
++		do_utime((char __force_user *)vcollected, mtime);
+ 		kfree(vcollected);
+ 		eat(body_len);
+ 		state = SkipIt;
+ 		return 0;
+ 	} else {
+-		sys_write(wfd, victim, count);
++		sys_write(wfd, (char __force_user *)victim, count);
+ 		body_len -= count;
+ 		eat(count);
+ 		return 1;
+@@ -365,9 +365,9 @@ static int __init do_symlink(void)
+ {
+ 	collected[N_ALIGN(name_len) + body_len] = '\0';
+ 	clean_path(collected, 0);
+-	sys_symlink(collected + N_ALIGN(name_len), collected);
+-	sys_lchown(collected, uid, gid);
+-	do_utime(collected, mtime);
++	sys_symlink((char __force_user *)collected + N_ALIGN(name_len), (char __force_user *)collected);
++	sys_lchown((char __force_user *)collected, uid, gid);
++	do_utime((char __force_user *)collected, mtime);
+ 	state = SkipIt;
+ 	next_state = Reset;
+ 	return 0;
+diff --git a/init/main.c b/init/main.c
+index 58c132d..310b5fa 100644
+--- a/init/main.c
++++ b/init/main.c
+@@ -97,6 +97,8 @@ extern void radix_tree_init(void);
+ static inline void mark_rodata_ro(void) { }
+ #endif
+ 
++extern void grsecurity_init(void);
++
+ /*
+  * Debug helper: via this flag we know that we are in 'early bootup code'
+  * where only the boot processor is running with IRQ disabled.  This means
+@@ -158,6 +160,85 @@ static int __init set_reset_devices(char *str)
+ 
+ __setup("reset_devices", set_reset_devices);
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++kgid_t grsec_proc_gid = KGIDT_INIT(CONFIG_GRKERNSEC_PROC_GID);
++static int __init setup_grsec_proc_gid(char *str)
++{
++	grsec_proc_gid = KGIDT_INIT(simple_strtol(str, NULL, 0));
++	return 1;
++}
++__setup("grsec_proc_gid=", setup_grsec_proc_gid);
++#endif
++#ifdef CONFIG_GRKERNSEC_SYSFS_RESTRICT
++int grsec_enable_sysfs_restrict = 1;
++static int __init setup_grsec_sysfs_restrict(char *str)
++{
++	if (!simple_strtol(str, NULL, 0))
++		grsec_enable_sysfs_restrict = 0;
++	return 1;
++}
++__setup("grsec_sysfs_restrict", setup_grsec_sysfs_restrict);
++#endif
++
++#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF)
++unsigned long pax_user_shadow_base __read_only;
++EXPORT_SYMBOL(pax_user_shadow_base);
++extern char pax_enter_kernel_user[];
++extern char pax_exit_kernel_user[];
++#endif
++
++#if defined(CONFIG_X86) && defined(CONFIG_PAX_MEMORY_UDEREF)
++static int __init setup_pax_nouderef(char *str)
++{
++#ifdef CONFIG_X86_32
++	unsigned int cpu;
++	struct desc_struct *gdt;
++
++	for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
++		gdt = get_cpu_gdt_table(cpu);
++		gdt[GDT_ENTRY_KERNEL_DS].type = 3;
++		gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf;
++		gdt[GDT_ENTRY_DEFAULT_USER_CS].limit = 0xf;
++		gdt[GDT_ENTRY_DEFAULT_USER_DS].limit = 0xf;
++	}
++	loadsegment(ds, __KERNEL_DS);
++	loadsegment(es, __KERNEL_DS);
++	loadsegment(ss, __KERNEL_DS);
++#else
++	memcpy(pax_enter_kernel_user, (unsigned char []){0xc3}, 1);
++	memcpy(pax_exit_kernel_user, (unsigned char []){0xc3}, 1);
++	clone_pgd_mask = ~(pgdval_t)0UL;
++	pax_user_shadow_base = 0UL;
++	setup_clear_cpu_cap(X86_FEATURE_PCID);
++	setup_clear_cpu_cap(X86_FEATURE_INVPCID);
++#endif
++
++	return 0;
++}
++early_param("pax_nouderef", setup_pax_nouderef);
++
++#ifdef CONFIG_X86_64
++static int __init setup_pax_weakuderef(char *str)
++{
++	if (clone_pgd_mask != ~(pgdval_t)0UL)
++		pax_user_shadow_base = 1UL << TASK_SIZE_MAX_SHIFT;
++	return 1;
++}
++__setup("pax_weakuderef", setup_pax_weakuderef);
++#endif
++#endif
++
++#ifdef CONFIG_PAX_SOFTMODE
++int pax_softmode;
++
++static int __init setup_pax_softmode(char *str)
++{
++	get_option(&str, &pax_softmode);
++	return 1;
++}
++__setup("pax_softmode=", setup_pax_softmode);
++#endif
++
+ static const char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, };
+ const char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, };
+ static const char *panic_later, *panic_param;
+@@ -692,25 +773,24 @@ int __init_or_module do_one_initcall(initcall_t fn)
+ {
+ 	int count = preempt_count();
+ 	int ret;
+-	char msgbuf[64];
++	const char *msg1 = "", *msg2 = "";
+ 
+ 	if (initcall_debug)
+ 		ret = do_one_initcall_debug(fn);
+ 	else
+ 		ret = fn();
+ 
+-	msgbuf[0] = 0;
+-
+ 	if (preempt_count() != count) {
+-		sprintf(msgbuf, "preemption imbalance ");
++		msg1 = " preemption imbalance";
+ 		preempt_count_set(count);
+ 	}
+ 	if (irqs_disabled()) {
+-		strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
++		msg2 = " disabled interrupts";
+ 		local_irq_enable();
+ 	}
+-	WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf);
++	WARN(*msg1 || *msg2, "initcall %pF returned with%s%s\n", fn, msg1, msg2);
+ 
++	add_latent_entropy();
+ 	return ret;
+ }
+ 
+@@ -817,8 +897,8 @@ static int run_init_process(const char *init_filename)
+ {
+ 	argv_init[0] = init_filename;
+ 	return do_execve(getname_kernel(init_filename),
+-		(const char __user *const __user *)argv_init,
+-		(const char __user *const __user *)envp_init);
++		(const char __user *const __force_user *)argv_init,
++		(const char __user *const __force_user *)envp_init);
+ }
+ 
+ static int try_to_run_init_process(const char *init_filename)
+@@ -835,6 +915,10 @@ static int try_to_run_init_process(const char *init_filename)
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
++extern int gr_init_ran;
++#endif
++
+ static noinline void __init kernel_init_freeable(void);
+ 
+ static int __ref kernel_init(void *unused)
+@@ -859,6 +943,11 @@ static int __ref kernel_init(void *unused)
+ 		       ramdisk_execute_command, ret);
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_CHROOT_INITRD
++	/* if no initrd was used, be extra sure we enforce chroot restrictions */
++	gr_init_ran = 1;
++#endif
++
+ 	/*
+ 	 * We try each of these until one succeeds.
+ 	 *
+@@ -914,7 +1003,7 @@ static noinline void __init kernel_init_freeable(void)
+ 	do_basic_setup();
+ 
+ 	/* Open the /dev/console on the rootfs, this should never fail */
+-	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
++	if (sys_open((const char __force_user *) "/dev/console", O_RDWR, 0) < 0)
+ 		pr_err("Warning: unable to open an initial console.\n");
+ 
+ 	(void) sys_dup(0);
+@@ -927,11 +1016,13 @@ static noinline void __init kernel_init_freeable(void)
+ 	if (!ramdisk_execute_command)
+ 		ramdisk_execute_command = "/init";
+ 
+-	if (sys_access((const char __user *) ramdisk_execute_command, 0) != 0) {
++	if (sys_access((const char __force_user *) ramdisk_execute_command, 0) != 0) {
+ 		ramdisk_execute_command = NULL;
+ 		prepare_namespace();
+ 	}
+ 
++	grsecurity_init();
++
+ 	/*
+ 	 * Ok, we have completed the initial bootup, and
+ 	 * we're essentially up and running. Get rid of the
+diff --git a/ipc/compat.c b/ipc/compat.c
+index f486b00..fbb78e9 100644
+--- a/ipc/compat.c
++++ b/ipc/compat.c
+@@ -399,7 +399,7 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
+ 			       COMPAT_SHMLBA);
+ 		if (err < 0)
+ 			return err;
+-		return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
++		return put_user(raddr, (compat_ulong_t __user *)compat_ptr(third));
+ 	}
+ 	case SHMDT:
+ 		return sys_shmdt(compat_ptr(ptr));
+@@ -750,7 +750,7 @@ long compat_sys_shmctl(int first, int second, void __user *uptr)
+ }
+ 
+ long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
+-		unsigned nsops, const struct compat_timespec __user *timeout)
++		compat_long_t nsops, const struct compat_timespec __user *timeout)
+ {
+ 	struct timespec __user *ts64 = NULL;
+ 	if (timeout) {
+diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
+index cadddc8..c263084 100644
+--- a/ipc/ipc_sysctl.c
++++ b/ipc/ipc_sysctl.c
+@@ -30,7 +30,7 @@ static void *get_ipc(ctl_table *table)
+ static int proc_ipc_dointvec(ctl_table *table, int write,
+ 	void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table ipc_table;
++	ctl_table_no_const ipc_table;
+ 
+ 	memcpy(&ipc_table, table, sizeof(ipc_table));
+ 	ipc_table.data = get_ipc(table);
+@@ -41,7 +41,7 @@ static int proc_ipc_dointvec(ctl_table *table, int write,
+ static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
+ 	void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table ipc_table;
++	ctl_table_no_const ipc_table;
+ 
+ 	memcpy(&ipc_table, table, sizeof(ipc_table));
+ 	ipc_table.data = get_ipc(table);
+@@ -65,7 +65,7 @@ static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
+ static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
+ 	void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table ipc_table;
++	ctl_table_no_const ipc_table;
+ 	size_t lenp_bef = *lenp;
+ 	int rc;
+ 
+@@ -88,7 +88,7 @@ static int proc_ipc_callback_dointvec_minmax(ctl_table *table, int write,
+ static int proc_ipc_doulongvec_minmax(ctl_table *table, int write,
+ 	void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table ipc_table;
++	ctl_table_no_const ipc_table;
+ 	memcpy(&ipc_table, table, sizeof(ipc_table));
+ 	ipc_table.data = get_ipc(table);
+ 
+@@ -122,7 +122,7 @@ static void ipc_auto_callback(int val)
+ static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
+ 	void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table ipc_table;
++	ctl_table_no_const ipc_table;
+ 	int oldval;
+ 	int rc;
+ 
+diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
+index 5bb8bfe..a38ec05 100644
+--- a/ipc/mq_sysctl.c
++++ b/ipc/mq_sysctl.c
+@@ -25,7 +25,7 @@ static void *get_mq(ctl_table *table)
+ static int proc_mq_dointvec(ctl_table *table, int write,
+ 			    void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table mq_table;
++	ctl_table_no_const mq_table;
+ 	memcpy(&mq_table, table, sizeof(mq_table));
+ 	mq_table.data = get_mq(table);
+ 
+@@ -35,7 +35,7 @@ static int proc_mq_dointvec(ctl_table *table, int write,
+ static int proc_mq_dointvec_minmax(ctl_table *table, int write,
+ 	void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table mq_table;
++	ctl_table_no_const mq_table;
+ 	memcpy(&mq_table, table, sizeof(mq_table));
+ 	mq_table.data = get_mq(table);
+ 
+diff --git a/ipc/mqueue.c b/ipc/mqueue.c
+index c3b3117..1efa933 100644
+--- a/ipc/mqueue.c
++++ b/ipc/mqueue.c
+@@ -278,6 +278,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
+ 		mq_bytes = mq_treesize + (info->attr.mq_maxmsg *
+ 					  info->attr.mq_msgsize);
+ 
++		gr_learn_resource(current, RLIMIT_MSGQUEUE, u->mq_bytes + mq_bytes, 1);
+ 		spin_lock(&mq_lock);
+ 		if (u->mq_bytes + mq_bytes < u->mq_bytes ||
+ 		    u->mq_bytes + mq_bytes > rlimit(RLIMIT_MSGQUEUE)) {
+diff --git a/ipc/msg.c b/ipc/msg.c
+index 6498531..b0ff3c8 100644
+--- a/ipc/msg.c
++++ b/ipc/msg.c
+@@ -303,18 +303,19 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
+ 	return security_msg_queue_associate(msq, msgflg);
+ }
+ 
++static struct ipc_ops msg_ops = {
++	.getnew		= newque,
++	.associate	= msg_security,
++	.more_checks	= NULL
++};
++
+ SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
+ {
+ 	struct ipc_namespace *ns;
+-	struct ipc_ops msg_ops;
+ 	struct ipc_params msg_params;
+ 
+ 	ns = current->nsproxy->ipc_ns;
+ 
+-	msg_ops.getnew = newque;
+-	msg_ops.associate = msg_security;
+-	msg_ops.more_checks = NULL;
+-
+ 	msg_params.key = key;
+ 	msg_params.flg = msgflg;
+ 
+diff --git a/ipc/sem.c b/ipc/sem.c
+index bee5554..ec7d947 100644
+--- a/ipc/sem.c
++++ b/ipc/sem.c
+@@ -561,10 +561,15 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
+ 	return 0;
+ }
+ 
++static struct ipc_ops sem_ops = {
++	.getnew		= newary,
++	.associate	= sem_security,
++	.more_checks	= sem_more_checks
++};
++
+ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
+ {
+ 	struct ipc_namespace *ns;
+-	struct ipc_ops sem_ops;
+ 	struct ipc_params sem_params;
+ 
+ 	ns = current->nsproxy->ipc_ns;
+@@ -572,10 +577,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
+ 	if (nsems < 0 || nsems > ns->sc_semmsl)
+ 		return -EINVAL;
+ 
+-	sem_ops.getnew = newary;
+-	sem_ops.associate = sem_security;
+-	sem_ops.more_checks = sem_more_checks;
+-
+ 	sem_params.key = key;
+ 	sem_params.flg = semflg;
+ 	sem_params.u.nsems = nsems;
+@@ -1760,7 +1761,7 @@ static int get_queue_result(struct sem_queue *q)
+ }
+ 
+ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
+-		unsigned, nsops, const struct timespec __user *, timeout)
++		long, nsops, const struct timespec __user *, timeout)
+ {
+ 	int error = -EINVAL;
+ 	struct sem_array *sma;
+@@ -1996,7 +1997,7 @@ out_free:
+ }
+ 
+ SYSCALL_DEFINE3(semop, int, semid, struct sembuf __user *, tsops,
+-		unsigned, nsops)
++		long, nsops)
+ {
+ 	return sys_semtimedop(semid, tsops, nsops, NULL);
+ }
+diff --git a/ipc/shm.c b/ipc/shm.c
+index 7645961..afc7f02 100644
+--- a/ipc/shm.c
++++ b/ipc/shm.c
+@@ -72,6 +72,14 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp);
+ static int sysvipc_shm_proc_show(struct seq_file *s, void *it);
+ #endif
+ 
++#ifdef CONFIG_GRKERNSEC
++extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++			   const time_t shm_createtime, const kuid_t cuid,
++			   const int shmid);
++extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
++			   const time_t shm_createtime);
++#endif
++
+ void shm_init_ns(struct ipc_namespace *ns)
+ {
+ 	ns->shm_ctlmax = SHMMAX;
+@@ -553,6 +561,14 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
+ 	shp->shm_lprid = 0;
+ 	shp->shm_atim = shp->shm_dtim = 0;
+ 	shp->shm_ctim = get_seconds();
++#ifdef CONFIG_GRKERNSEC
++	{
++		struct timespec timeval;
++		do_posix_clock_monotonic_gettime(&timeval);
++
++		shp->shm_createtime = timeval.tv_sec;
++	}
++#endif
+ 	shp->shm_segsz = size;
+ 	shp->shm_nattch = 0;
+ 	shp->shm_file = file;
+@@ -606,18 +622,19 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
+ 	return 0;
+ }
+ 
++static struct ipc_ops shm_ops = {
++	.getnew		= newseg,
++	.associate	= shm_security,
++	.more_checks	= shm_more_checks
++};
++
+ SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
+ {
+ 	struct ipc_namespace *ns;
+-	struct ipc_ops shm_ops;
+ 	struct ipc_params shm_params;
+ 
+ 	ns = current->nsproxy->ipc_ns;
+ 
+-	shm_ops.getnew = newseg;
+-	shm_ops.associate = shm_security;
+-	shm_ops.more_checks = shm_more_checks;
+-
+ 	shm_params.key = key;
+ 	shm_params.flg = shmflg;
+ 	shm_params.u.size = size;
+@@ -1088,6 +1105,12 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
+ 		f_mode = FMODE_READ | FMODE_WRITE;
+ 	}
+ 	if (shmflg & SHM_EXEC) {
++
++#ifdef CONFIG_PAX_MPROTECT
++		if (current->mm->pax_flags & MF_PAX_MPROTECT)
++			goto out;
++#endif
++
+ 		prot |= PROT_EXEC;
+ 		acc_mode |= S_IXUGO;
+ 	}
+@@ -1112,6 +1135,15 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
+ 	if (err)
+ 		goto out_unlock;
+ 
++#ifdef CONFIG_GRKERNSEC
++	if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime,
++			     shp->shm_perm.cuid, shmid) ||
++	    !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) {
++		err = -EACCES;
++		goto out_unlock;
++	}
++#endif
++
+ 	ipc_lock_object(&shp->shm_perm);
+ 
+ 	/* check if shm_destroy() is tearing down shp */
+@@ -1124,6 +1156,9 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
+ 	path = shp->shm_file->f_path;
+ 	path_get(&path);
+ 	shp->shm_nattch++;
++#ifdef CONFIG_GRKERNSEC
++	shp->shm_lapid = current->pid;
++#endif
+ 	size = i_size_read(path.dentry->d_inode);
+ 	ipc_unlock_object(&shp->shm_perm);
+ 	rcu_read_unlock();
+diff --git a/ipc/util.c b/ipc/util.c
+index e1b4c6d..8174204 100644
+--- a/ipc/util.c
++++ b/ipc/util.c
+@@ -71,6 +71,8 @@ struct ipc_proc_iface {
+ 	int (*show)(struct seq_file *, void *);
+ };
+ 
++extern int gr_ipc_permitted(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, int requested_mode, int granted_mode);
++
+ static void ipc_memory_notifier(struct work_struct *work)
+ {
+ 	ipcns_notify(IPCNS_MEMCHANGED);
+@@ -537,6 +539,10 @@ int ipcperms(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp, short flag)
+ 		granted_mode >>= 6;
+ 	else if (in_group_p(ipcp->cgid) || in_group_p(ipcp->gid))
+ 		granted_mode >>= 3;
++
++	if (!gr_ipc_permitted(ns, ipcp, requested_mode, granted_mode))
++		return -1;
++
+ 	/* is there some bit set in requested_mode but not in granted_mode? */
+ 	if ((requested_mode & ~granted_mode & 0007) && 
+ 	    !ns_capable(ns->user_ns, CAP_IPC_OWNER))
+diff --git a/kernel/acct.c b/kernel/acct.c
+index 8d6e145..33e0b1e 100644
+--- a/kernel/acct.c
++++ b/kernel/acct.c
+@@ -556,7 +556,7 @@ static void do_acct_process(struct bsd_acct_struct *acct,
+ 	 */
+ 	flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
+ 	current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
+-	file->f_op->write(file, (char *)&ac,
++	file->f_op->write(file, (char __force_user *)&ac,
+ 			       sizeof(acct_t), &file->f_pos);
+ 	current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim;
+ 	set_fs(fs);
+diff --git a/kernel/audit.c b/kernel/audit.c
+index b45b2da..159e8c4 100644
+--- a/kernel/audit.c
++++ b/kernel/audit.c
+@@ -122,7 +122,7 @@ u32		audit_sig_sid = 0;
+    3) suppressed due to audit_rate_limit
+    4) suppressed due to audit_backlog_limit
+ */
+-static atomic_t    audit_lost = ATOMIC_INIT(0);
++static atomic_unchecked_t    audit_lost = ATOMIC_INIT(0);
+ 
+ /* The netlink socket. */
+ static struct sock *audit_sock;
+@@ -256,7 +256,7 @@ void audit_log_lost(const char *message)
+ 	unsigned long		now;
+ 	int			print;
+ 
+-	atomic_inc(&audit_lost);
++	atomic_inc_unchecked(&audit_lost);
+ 
+ 	print = (audit_failure == AUDIT_FAIL_PANIC || !audit_rate_limit);
+ 
+@@ -273,7 +273,7 @@ void audit_log_lost(const char *message)
+ 	if (print) {
+ 		if (printk_ratelimit())
+ 			pr_warn("audit_lost=%u audit_rate_limit=%u audit_backlog_limit=%u\n",
+-				atomic_read(&audit_lost),
++				atomic_read_unchecked(&audit_lost),
+ 				audit_rate_limit,
+ 				audit_backlog_limit);
+ 		audit_panic(message);
+@@ -803,7 +803,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+ 		s.pid			= audit_pid;
+ 		s.rate_limit		= audit_rate_limit;
+ 		s.backlog_limit		= audit_backlog_limit;
+-		s.lost			= atomic_read(&audit_lost);
++		s.lost			= atomic_read_unchecked(&audit_lost);
+ 		s.backlog		= skb_queue_len(&audit_skb_queue);
+ 		s.version		= AUDIT_VERSION_LATEST;
+ 		s.backlog_wait_time	= audit_backlog_wait_time;
+diff --git a/kernel/auditsc.c b/kernel/auditsc.c
+index 619b58d..e58d957 100644
+--- a/kernel/auditsc.c
++++ b/kernel/auditsc.c
+@@ -1954,7 +1954,7 @@ int auditsc_get_stamp(struct audit_context *ctx,
+ }
+ 
+ /* global counter which is incremented every time something logs in */
+-static atomic_t session_id = ATOMIC_INIT(0);
++static atomic_unchecked_t session_id = ATOMIC_INIT(0);
+ 
+ static int audit_set_loginuid_perm(kuid_t loginuid)
+ {
+@@ -2023,7 +2023,7 @@ int audit_set_loginuid(kuid_t loginuid)
+ 
+ 	/* are we setting or clearing? */
+ 	if (uid_valid(loginuid))
+-		sessionid = (unsigned int)atomic_inc_return(&session_id);
++		sessionid = (unsigned int)atomic_inc_return_unchecked(&session_id);
+ 
+ 	task->sessionid = sessionid;
+ 	task->loginuid = loginuid;
+diff --git a/kernel/capability.c b/kernel/capability.c
+index 00adb21..d5954a8 100644
+--- a/kernel/capability.c
++++ b/kernel/capability.c
+@@ -202,6 +202,9 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
+ 		 * before modification is attempted and the application
+ 		 * fails.
+ 		 */
++		if (tocopy > ARRAY_SIZE(kdata))
++			return -EFAULT;
++
+ 		if (copy_to_user(dataptr, kdata, tocopy
+ 				 * sizeof(struct __user_cap_data_struct))) {
+ 			return -EFAULT;
+@@ -307,10 +310,11 @@ bool has_ns_capability(struct task_struct *t,
+ 	int ret;
+ 
+ 	rcu_read_lock();
+-	ret = security_capable(__task_cred(t), ns, cap);
++	ret = security_capable(__task_cred(t), ns, cap) == 0 &&
++		gr_task_is_capable(t, __task_cred(t), cap);
+ 	rcu_read_unlock();
+ 
+-	return (ret == 0);
++	return ret;
+ }
+ 
+ /**
+@@ -347,10 +351,10 @@ bool has_ns_capability_noaudit(struct task_struct *t,
+ 	int ret;
+ 
+ 	rcu_read_lock();
+-	ret = security_capable_noaudit(__task_cred(t), ns, cap);
++	ret = security_capable_noaudit(__task_cred(t), ns, cap) == 0 && gr_task_is_capable_nolog(t, cap);
+ 	rcu_read_unlock();
+ 
+-	return (ret == 0);
++	return ret;
+ }
+ 
+ /**
+@@ -388,7 +392,7 @@ bool ns_capable(struct user_namespace *ns, int cap)
+ 		BUG();
+ 	}
+ 
+-	if (security_capable(current_cred(), ns, cap) == 0) {
++	if (security_capable(current_cred(), ns, cap) == 0 && gr_is_capable(cap)) {
+ 		current->flags |= PF_SUPERPRIV;
+ 		return true;
+ 	}
+@@ -396,6 +400,21 @@ bool ns_capable(struct user_namespace *ns, int cap)
+ }
+ EXPORT_SYMBOL(ns_capable);
+ 
++bool ns_capable_nolog(struct user_namespace *ns, int cap)
++{
++	if (unlikely(!cap_valid(cap))) {
++		printk(KERN_CRIT "capable_nolog() called with invalid cap=%u\n", cap);
++		BUG();
++	}
++
++	if (security_capable_noaudit(current_cred(), ns, cap) == 0 && gr_is_capable_nolog(cap)) {
++		current->flags |= PF_SUPERPRIV;
++		return true;
++	}
++	return false;
++}
++EXPORT_SYMBOL(ns_capable_nolog);
++
+ /**
+  * file_ns_capable - Determine if the file's opener had a capability in effect
+  * @file:  The file we want to check
+@@ -436,6 +455,12 @@ bool capable(int cap)
+ }
+ EXPORT_SYMBOL(capable);
+ 
++bool capable_nolog(int cap)
++{
++	return ns_capable_nolog(&init_user_ns, cap);
++}
++EXPORT_SYMBOL(capable_nolog);
++
+ /**
+  * capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
+  * @inode: The inode in question
+@@ -453,3 +478,12 @@ bool capable_wrt_inode_uidgid(const struct inode *inode, int cap)
+ 		kgid_has_mapping(ns, inode->i_gid);
+ }
+ EXPORT_SYMBOL(capable_wrt_inode_uidgid);
++
++bool capable_wrt_inode_uidgid_nolog(const struct inode *inode, int cap)
++{
++	struct user_namespace *ns = current_user_ns();
++
++	return ns_capable_nolog(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
++		kgid_has_mapping(ns, inode->i_gid);
++}
++EXPORT_SYMBOL(capable_wrt_inode_uidgid_nolog);
+diff --git a/kernel/cgroup.c b/kernel/cgroup.c
+index 18711f3..a8e4c7b 100644
+--- a/kernel/cgroup.c
++++ b/kernel/cgroup.c
+@@ -5189,6 +5189,14 @@ static void cgroup_release_agent(struct work_struct *work)
+ 						    release_list);
+ 		list_del_init(&cgrp->release_list);
+ 		raw_spin_unlock(&release_list_lock);
++
++		/*
++		 * don't bother calling call_usermodehelper if we haven't
++		 * configured a binary to execute
++		 */
++		if (cgrp->root->release_agent_path[0] == '\0')
++			goto continue_free;
++
+ 		pathbuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ 		if (!pathbuf)
+ 			goto continue_free;
+@@ -5371,7 +5379,7 @@ static int cgroup_css_links_read(struct seq_file *seq, void *v)
+ 		struct css_set *cset = link->cset;
+ 		struct task_struct *task;
+ 		int count = 0;
+-		seq_printf(seq, "css_set %p\n", cset);
++		seq_printf(seq, "css_set %pK\n", cset);
+ 		list_for_each_entry(task, &cset->tasks, cg_list) {
+ 			if (count++ > MAX_TASKS_SHOWN_PER_CSS) {
+ 				seq_puts(seq, "  ...\n");
+diff --git a/kernel/compat.c b/kernel/compat.c
+index 0a09e48..4a1a597 100644
+--- a/kernel/compat.c
++++ b/kernel/compat.c
+@@ -13,6 +13,7 @@
+ 
+ #include <linux/linkage.h>
+ #include <linux/compat.h>
++#include <linux/module.h>
+ #include <linux/errno.h>
+ #include <linux/time.h>
+ #include <linux/signal.h>
+@@ -220,7 +221,7 @@ static long compat_nanosleep_restart(struct restart_block *restart)
+ 	mm_segment_t oldfs;
+ 	long ret;
+ 
+-	restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
++	restart->nanosleep.rmtp = (struct timespec __force_user *) &rmt;
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	ret = hrtimer_nanosleep_restart(restart);
+@@ -252,7 +253,7 @@ asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	ret = hrtimer_nanosleep(&tu,
+-				rmtp ? (struct timespec __user *)&rmt : NULL,
++				rmtp ? (struct timespec __force_user *)&rmt : NULL,
+ 				HRTIMER_MODE_REL, CLOCK_MONOTONIC);
+ 	set_fs(oldfs);
+ 
+@@ -361,7 +362,7 @@ asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set)
+ 	mm_segment_t old_fs = get_fs();
+ 
+ 	set_fs(KERNEL_DS);
+-	ret = sys_sigpending((old_sigset_t __user *) &s);
++	ret = sys_sigpending((old_sigset_t __force_user *) &s);
+ 	set_fs(old_fs);
+ 	if (ret == 0)
+ 		ret = put_user(s, set);
+@@ -451,7 +452,7 @@ asmlinkage long compat_sys_old_getrlimit(unsigned int resource,
+ 	mm_segment_t old_fs = get_fs();
+ 
+ 	set_fs(KERNEL_DS);
+-	ret = sys_old_getrlimit(resource, &r);
++	ret = sys_old_getrlimit(resource, (struct rlimit __force_user *)&r);
+ 	set_fs(old_fs);
+ 
+ 	if (!ret) {
+@@ -533,8 +534,8 @@ COMPAT_SYSCALL_DEFINE4(wait4,
+ 		set_fs (KERNEL_DS);
+ 		ret = sys_wait4(pid,
+ 				(stat_addr ?
+-				 (unsigned int __user *) &status : NULL),
+-				options, (struct rusage __user *) &r);
++				 (unsigned int __force_user *) &status : NULL),
++				options, (struct rusage __force_user *) &r);
+ 		set_fs (old_fs);
+ 
+ 		if (ret > 0) {
+@@ -560,8 +561,8 @@ COMPAT_SYSCALL_DEFINE5(waitid,
+ 	memset(&info, 0, sizeof(info));
+ 
+ 	set_fs(KERNEL_DS);
+-	ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
+-			 uru ? (struct rusage __user *)&ru : NULL);
++	ret = sys_waitid(which, pid, (siginfo_t __force_user *)&info, options,
++			 uru ? (struct rusage __force_user *)&ru : NULL);
+ 	set_fs(old_fs);
+ 
+ 	if ((ret < 0) || (info.si_signo == 0))
+@@ -695,8 +696,8 @@ long compat_sys_timer_settime(timer_t timer_id, int flags,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = sys_timer_settime(timer_id, flags,
+-				(struct itimerspec __user *) &newts,
+-				(struct itimerspec __user *) &oldts);
++				(struct itimerspec __force_user *) &newts,
++				(struct itimerspec __force_user *) &oldts);
+ 	set_fs(oldfs);
+ 	if (!err && old && put_compat_itimerspec(old, &oldts))
+ 		return -EFAULT;
+@@ -713,7 +714,7 @@ long compat_sys_timer_gettime(timer_t timer_id,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = sys_timer_gettime(timer_id,
+-				(struct itimerspec __user *) &ts);
++				(struct itimerspec __force_user *) &ts);
+ 	set_fs(oldfs);
+ 	if (!err && put_compat_itimerspec(setting, &ts))
+ 		return -EFAULT;
+@@ -732,7 +733,7 @@ long compat_sys_clock_settime(clockid_t which_clock,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = sys_clock_settime(which_clock,
+-				(struct timespec __user *) &ts);
++				(struct timespec __force_user *) &ts);
+ 	set_fs(oldfs);
+ 	return err;
+ }
+@@ -747,7 +748,7 @@ long compat_sys_clock_gettime(clockid_t which_clock,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = sys_clock_gettime(which_clock,
+-				(struct timespec __user *) &ts);
++				(struct timespec __force_user *) &ts);
+ 	set_fs(oldfs);
+ 	if (!err && put_compat_timespec(&ts, tp))
+ 		return -EFAULT;
+@@ -767,7 +768,7 @@ long compat_sys_clock_adjtime(clockid_t which_clock,
+ 
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+-	ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
++	ret = sys_clock_adjtime(which_clock, (struct timex __force_user *) &txc);
+ 	set_fs(oldfs);
+ 
+ 	err = compat_put_timex(utp, &txc);
+@@ -787,7 +788,7 @@ long compat_sys_clock_getres(clockid_t which_clock,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = sys_clock_getres(which_clock,
+-			       (struct timespec __user *) &ts);
++			       (struct timespec __force_user *) &ts);
+ 	set_fs(oldfs);
+ 	if (!err && tp && put_compat_timespec(&ts, tp))
+ 		return -EFAULT;
+@@ -799,9 +800,9 @@ static long compat_clock_nanosleep_restart(struct restart_block *restart)
+ 	long err;
+ 	mm_segment_t oldfs;
+ 	struct timespec tu;
+-	struct compat_timespec *rmtp = restart->nanosleep.compat_rmtp;
++	struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
+ 
+-	restart->nanosleep.rmtp = (struct timespec __user *) &tu;
++	restart->nanosleep.rmtp = (struct timespec __force_user *) &tu;
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = clock_nanosleep_restart(restart);
+@@ -833,8 +834,8 @@ long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+ 	err = sys_clock_nanosleep(which_clock, flags,
+-				  (struct timespec __user *) &in,
+-				  (struct timespec __user *) &out);
++				  (struct timespec __force_user *) &in,
++				  (struct timespec __force_user *) &out);
+ 	set_fs(oldfs);
+ 
+ 	if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
+@@ -895,7 +896,8 @@ long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
+ 			 * bitmap. We must however ensure the end of the
+ 			 * kernel bitmap is zeroed.
+ 			 */
+-			if (nr_compat_longs-- > 0) {
++			if (nr_compat_longs) {
++				nr_compat_longs--;
+ 				if (__get_user(um, umask))
+ 					return -EFAULT;
+ 			} else {
+@@ -937,7 +939,8 @@ long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
+ 			 * We dont want to write past the end of the userspace
+ 			 * bitmap.
+ 			 */
+-			if (nr_compat_longs-- > 0) {
++			if (nr_compat_longs) {
++				nr_compat_longs--;
+ 				if (__put_user(um, umask))
+ 					return -EFAULT;
+ 			}
+@@ -1128,7 +1131,7 @@ COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval,
+ 	mm_segment_t old_fs = get_fs();
+ 
+ 	set_fs(KERNEL_DS);
+-	ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
++	ret = sys_sched_rr_get_interval(pid, (struct timespec __force_user *)&t);
+ 	set_fs(old_fs);
+ 	if (put_compat_timespec(&t, interval))
+ 		return -EFAULT;
+diff --git a/kernel/configs.c b/kernel/configs.c
+index c18b1f1..b9a0132 100644
+--- a/kernel/configs.c
++++ b/kernel/configs.c
+@@ -74,8 +74,19 @@ static int __init ikconfig_init(void)
+ 	struct proc_dir_entry *entry;
+ 
+ 	/* create the current config file */
++#if defined(CONFIG_GRKERNSEC_PROC_ADD) || defined(CONFIG_GRKERNSEC_HIDESYM)
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_HIDESYM)
++	entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL,
++			    &ikconfig_file_ops);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL,
++			    &ikconfig_file_ops);
++#endif
++#else
+ 	entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL,
+ 			    &ikconfig_file_ops);
++#endif
++
+ 	if (!entry)
+ 		return -ENOMEM;
+ 
+diff --git a/kernel/cred.c b/kernel/cred.c
+index e0573a4..20fb164 100644
+--- a/kernel/cred.c
++++ b/kernel/cred.c
+@@ -164,6 +164,16 @@ void exit_creds(struct task_struct *tsk)
+ 	validate_creds(cred);
+ 	alter_cred_subscribers(cred, -1);
+ 	put_cred(cred);
++
++#ifdef CONFIG_GRKERNSEC_SETXID
++	cred = (struct cred *) tsk->delayed_cred;
++	if (cred != NULL) {
++		tsk->delayed_cred = NULL;
++		validate_creds(cred);
++		alter_cred_subscribers(cred, -1);
++		put_cred(cred);
++	}
++#endif
+ }
+ 
+ /**
+@@ -411,7 +421,7 @@ static bool cred_cap_issubset(const struct cred *set, const struct cred *subset)
+  * Always returns 0 thus allowing this function to be tail-called at the end
+  * of, say, sys_setgid().
+  */
+-int commit_creds(struct cred *new)
++static int __commit_creds(struct cred *new)
+ {
+ 	struct task_struct *task = current;
+ 	const struct cred *old = task->real_cred;
+@@ -430,6 +440,8 @@ int commit_creds(struct cred *new)
+ 
+ 	get_cred(new); /* we will require a ref for the subj creds too */
+ 
++	gr_set_role_label(task, new->uid, new->gid);
++
+ 	/* dumpability changes */
+ 	if (!uid_eq(old->euid, new->euid) ||
+ 	    !gid_eq(old->egid, new->egid) ||
+@@ -479,6 +491,108 @@ int commit_creds(struct cred *new)
+ 	put_cred(old);
+ 	return 0;
+ }
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern int set_user(struct cred *new);
++
++void gr_delayed_cred_worker(void)
++{
++	const struct cred *new = current->delayed_cred;
++	struct cred *ncred;
++
++	current->delayed_cred = NULL;
++
++	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID) && new != NULL) {
++		// from doing get_cred on it when queueing this
++		put_cred(new);
++		return;
++	} else if (new == NULL)
++		return;
++
++	ncred = prepare_creds();
++	if (!ncred)
++		goto die;
++	// uids
++	ncred->uid = new->uid;
++	ncred->euid = new->euid;
++	ncred->suid = new->suid;
++	ncred->fsuid = new->fsuid;
++	// gids
++	ncred->gid = new->gid;
++	ncred->egid = new->egid;
++	ncred->sgid = new->sgid;
++	ncred->fsgid = new->fsgid;
++	// groups
++	if (set_groups(ncred, new->group_info) < 0) {
++		abort_creds(ncred);
++		goto die;
++	}
++	// caps
++	ncred->securebits = new->securebits;
++	ncred->cap_inheritable = new->cap_inheritable;
++	ncred->cap_permitted = new->cap_permitted;
++	ncred->cap_effective = new->cap_effective;
++	ncred->cap_bset = new->cap_bset;
++
++	if (set_user(ncred)) {
++		abort_creds(ncred);
++		goto die;
++	}
++
++	// from doing get_cred on it when queueing this
++	put_cred(new);
++
++	__commit_creds(ncred);
++	return;
++die:
++	// from doing get_cred on it when queueing this
++	put_cred(new);
++	do_group_exit(SIGKILL);
++}
++#endif
++
++int commit_creds(struct cred *new)
++{
++#ifdef CONFIG_GRKERNSEC_SETXID
++	int ret;
++	int schedule_it = 0;
++	struct task_struct *t;
++	unsigned oldsecurebits = current_cred()->securebits;
++
++	/* we won't get called with tasklist_lock held for writing
++	   and interrupts disabled as the cred struct in that case is
++	   init_cred
++	*/
++	if (grsec_enable_setxid && !current_is_single_threaded() &&
++	    uid_eq(current_uid(), GLOBAL_ROOT_UID) &&
++	    !uid_eq(new->uid, GLOBAL_ROOT_UID)) {
++		schedule_it = 1;
++	}
++	ret = __commit_creds(new);
++	if (schedule_it) {
++		rcu_read_lock();
++		read_lock(&tasklist_lock);
++		for (t = next_thread(current); t != current;
++		     t = next_thread(t)) {
++			/* we'll check if the thread has uid 0 in
++			 * the delayed worker routine
++			 */
++			if (task_securebits(t) == oldsecurebits &&
++			    t->delayed_cred == NULL) {
++				t->delayed_cred = get_cred(new);
++				set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
++				set_tsk_need_resched(t);
++			}
++		}
++		read_unlock(&tasklist_lock);
++		rcu_read_unlock();
++	}
++
++	return ret;
++#else
++	return __commit_creds(new);
++#endif
++}
++
+ EXPORT_SYMBOL(commit_creds);
+ 
+ /**
+diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
+index 8865cae..3530a18 100644
+--- a/kernel/debug/debug_core.c
++++ b/kernel/debug/debug_core.c
+@@ -124,7 +124,7 @@ static DEFINE_RAW_SPINLOCK(dbg_slave_lock);
+  */
+ static atomic_t			masters_in_kgdb;
+ static atomic_t			slaves_in_kgdb;
+-static atomic_t			kgdb_break_tasklet_var;
++static atomic_unchecked_t	kgdb_break_tasklet_var;
+ atomic_t			kgdb_setting_breakpoint;
+ 
+ struct task_struct		*kgdb_usethread;
+@@ -134,7 +134,7 @@ int				kgdb_single_step;
+ static pid_t			kgdb_sstep_pid;
+ 
+ /* to keep track of the CPU which is doing the single stepping*/
+-atomic_t			kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
++atomic_unchecked_t		kgdb_cpu_doing_single_step = ATOMIC_INIT(-1);
+ 
+ /*
+  * If you are debugging a problem where roundup (the collection of
+@@ -549,7 +549,7 @@ return_normal:
+ 	 * kernel will only try for the value of sstep_tries before
+ 	 * giving up and continuing on.
+ 	 */
+-	if (atomic_read(&kgdb_cpu_doing_single_step) != -1 &&
++	if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1 &&
+ 	    (kgdb_info[cpu].task &&
+ 	     kgdb_info[cpu].task->pid != kgdb_sstep_pid) && --sstep_tries) {
+ 		atomic_set(&kgdb_active, -1);
+@@ -647,8 +647,8 @@ cpu_master_loop:
+ 	}
+ 
+ kgdb_restore:
+-	if (atomic_read(&kgdb_cpu_doing_single_step) != -1) {
+-		int sstep_cpu = atomic_read(&kgdb_cpu_doing_single_step);
++	if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) {
++		int sstep_cpu = atomic_read_unchecked(&kgdb_cpu_doing_single_step);
+ 		if (kgdb_info[sstep_cpu].task)
+ 			kgdb_sstep_pid = kgdb_info[sstep_cpu].task->pid;
+ 		else
+@@ -925,18 +925,18 @@ static void kgdb_unregister_callbacks(void)
+ static void kgdb_tasklet_bpt(unsigned long ing)
+ {
+ 	kgdb_breakpoint();
+-	atomic_set(&kgdb_break_tasklet_var, 0);
++	atomic_set_unchecked(&kgdb_break_tasklet_var, 0);
+ }
+ 
+ static DECLARE_TASKLET(kgdb_tasklet_breakpoint, kgdb_tasklet_bpt, 0);
+ 
+ void kgdb_schedule_breakpoint(void)
+ {
+-	if (atomic_read(&kgdb_break_tasklet_var) ||
++	if (atomic_read_unchecked(&kgdb_break_tasklet_var) ||
+ 		atomic_read(&kgdb_active) != -1 ||
+ 		atomic_read(&kgdb_setting_breakpoint))
+ 		return;
+-	atomic_inc(&kgdb_break_tasklet_var);
++	atomic_inc_unchecked(&kgdb_break_tasklet_var);
+ 	tasklet_schedule(&kgdb_tasklet_breakpoint);
+ }
+ EXPORT_SYMBOL_GPL(kgdb_schedule_breakpoint);
+diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
+index 449518e..2658dd6 100644
+--- a/kernel/debug/kdb/kdb_main.c
++++ b/kernel/debug/kdb/kdb_main.c
+@@ -1977,7 +1977,7 @@ static int kdb_lsmod(int argc, const char **argv)
+ 			continue;
+ 
+ 		kdb_printf("%-20s%8u  0x%p ", mod->name,
+-			   mod->core_size, (void *)mod);
++			   mod->core_size_rx + mod->core_size_rw, (void *)mod);
+ #ifdef CONFIG_MODULE_UNLOAD
+ 		kdb_printf("%4ld ", module_refcount(mod));
+ #endif
+@@ -1987,7 +1987,7 @@ static int kdb_lsmod(int argc, const char **argv)
+ 			kdb_printf(" (Loading)");
+ 		else
+ 			kdb_printf(" (Live)");
+-		kdb_printf(" 0x%p", mod->module_core);
++		kdb_printf(" 0x%p 0x%p", mod->module_core_rx,  mod->module_core_rw);
+ 
+ #ifdef CONFIG_MODULE_UNLOAD
+ 		{
+diff --git a/kernel/events/core.c b/kernel/events/core.c
+index 60146fe..2e89117 100644
+--- a/kernel/events/core.c
++++ b/kernel/events/core.c
+@@ -159,8 +159,15 @@ static struct srcu_struct pmus_srcu;
+  *   0 - disallow raw tracepoint access for unpriv
+  *   1 - disallow cpu events for unpriv
+  *   2 - disallow kernel profiling for unpriv
++ *   3 - disallow all unpriv perf event use
+  */
+-int sysctl_perf_event_paranoid __read_mostly = 1;
++#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
++int sysctl_perf_event_legitimately_concerned __read_mostly = 3;
++#elif defined(CONFIG_GRKERNSEC_HIDESYM)
++int sysctl_perf_event_legitimately_concerned __read_mostly = 2;
++#else
++int sysctl_perf_event_legitimately_concerned __read_mostly = 1;
++#endif
+ 
+ /* Minimum for 512 kiB + 1 user control page */
+ int sysctl_perf_event_mlock __read_mostly = 512 + (PAGE_SIZE / 1024); /* 'free' kiB per user */
+@@ -186,7 +193,7 @@ void update_perf_cpu_limits(void)
+ 
+ 	tmp *= sysctl_perf_cpu_time_max_percent;
+ 	do_div(tmp, 100);
+-	ACCESS_ONCE(perf_sample_allowed_ns) = tmp;
++	ACCESS_ONCE_RW(perf_sample_allowed_ns) = tmp;
+ }
+ 
+ static int perf_rotate_context(struct perf_cpu_context *cpuctx);
+@@ -273,7 +280,7 @@ void perf_sample_event_took(u64 sample_len_ns)
+ 	update_perf_cpu_limits();
+ }
+ 
+-static atomic64_t perf_event_id;
++static atomic64_unchecked_t perf_event_id;
+ 
+ static void cpu_ctx_sched_out(struct perf_cpu_context *cpuctx,
+ 			      enum event_type_t event_type);
+@@ -3011,7 +3018,7 @@ static void __perf_event_read(void *info)
+ 
+ static inline u64 perf_event_count(struct perf_event *event)
+ {
+-	return local64_read(&event->count) + atomic64_read(&event->child_count);
++	return local64_read(&event->count) + atomic64_read_unchecked(&event->child_count);
+ }
+ 
+ static u64 perf_event_read(struct perf_event *event)
+@@ -3376,9 +3383,9 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
+ 	mutex_lock(&event->child_mutex);
+ 	total += perf_event_read(event);
+ 	*enabled += event->total_time_enabled +
+-			atomic64_read(&event->child_total_time_enabled);
++			atomic64_read_unchecked(&event->child_total_time_enabled);
+ 	*running += event->total_time_running +
+-			atomic64_read(&event->child_total_time_running);
++			atomic64_read_unchecked(&event->child_total_time_running);
+ 
+ 	list_for_each_entry(child, &event->child_list, child_list) {
+ 		total += perf_event_read(child);
+@@ -3827,10 +3834,10 @@ void perf_event_update_userpage(struct perf_event *event)
+ 		userpg->offset -= local64_read(&event->hw.prev_count);
+ 
+ 	userpg->time_enabled = enabled +
+-			atomic64_read(&event->child_total_time_enabled);
++			atomic64_read_unchecked(&event->child_total_time_enabled);
+ 
+ 	userpg->time_running = running +
+-			atomic64_read(&event->child_total_time_running);
++			atomic64_read_unchecked(&event->child_total_time_running);
+ 
+ 	arch_perf_update_userpage(userpg, now);
+ 
+@@ -4391,7 +4398,7 @@ perf_output_sample_ustack(struct perf_output_handle *handle, u64 dump_size,
+ 
+ 		/* Data. */
+ 		sp = perf_user_stack_pointer(regs);
+-		rem = __output_copy_user(handle, (void *) sp, dump_size);
++		rem = __output_copy_user(handle, (void __user *) sp, dump_size);
+ 		dyn_size = dump_size - rem;
+ 
+ 		perf_output_skip(handle, rem);
+@@ -4482,11 +4489,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
+ 	values[n++] = perf_event_count(event);
+ 	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
+ 		values[n++] = enabled +
+-			atomic64_read(&event->child_total_time_enabled);
++			atomic64_read_unchecked(&event->child_total_time_enabled);
+ 	}
+ 	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
+ 		values[n++] = running +
+-			atomic64_read(&event->child_total_time_running);
++			atomic64_read_unchecked(&event->child_total_time_running);
+ 	}
+ 	if (read_format & PERF_FORMAT_ID)
+ 		values[n++] = primary_event_id(event);
+@@ -6765,7 +6772,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
+ 	event->parent		= parent_event;
+ 
+ 	event->ns		= get_pid_ns(task_active_pid_ns(current));
+-	event->id		= atomic64_inc_return(&perf_event_id);
++	event->id		= atomic64_inc_return_unchecked(&perf_event_id);
+ 
+ 	event->state		= PERF_EVENT_STATE_INACTIVE;
+ 
+@@ -7065,6 +7072,11 @@ SYSCALL_DEFINE5(perf_event_open,
+ 	if (flags & ~PERF_FLAG_ALL)
+ 		return -EINVAL;
+ 
++#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
++	if (perf_paranoid_any() && !capable(CAP_SYS_ADMIN))
++		return -EACCES;
++#endif
++
+ 	err = perf_copy_attr(attr_uptr, &attr);
+ 	if (err)
+ 		return err;
+@@ -7403,10 +7415,10 @@ static void sync_child_event(struct perf_event *child_event,
+ 	/*
+ 	 * Add back the child's count to the parent's count:
+ 	 */
+-	atomic64_add(child_val, &parent_event->child_count);
+-	atomic64_add(child_event->total_time_enabled,
++	atomic64_add_unchecked(child_val, &parent_event->child_count);
++	atomic64_add_unchecked(child_event->total_time_enabled,
+ 		     &parent_event->child_total_time_enabled);
+-	atomic64_add(child_event->total_time_running,
++	atomic64_add_unchecked(child_event->total_time_running,
+ 		     &parent_event->child_total_time_running);
+ 
+ 	/*
+diff --git a/kernel/events/internal.h b/kernel/events/internal.h
+index 569b2187..19940d9 100644
+--- a/kernel/events/internal.h
++++ b/kernel/events/internal.h
+@@ -81,10 +81,10 @@ static inline unsigned long perf_data_size(struct ring_buffer *rb)
+ 	return rb->nr_pages << (PAGE_SHIFT + page_order(rb));
+ }
+ 
+-#define DEFINE_OUTPUT_COPY(func_name, memcpy_func)			\
++#define DEFINE_OUTPUT_COPY(func_name, memcpy_func, user)		\
+ static inline unsigned long						\
+ func_name(struct perf_output_handle *handle,				\
+-	  const void *buf, unsigned long len)				\
++	  const void user *buf, unsigned long len)			\
+ {									\
+ 	unsigned long size, written;					\
+ 									\
+@@ -117,7 +117,7 @@ memcpy_common(void *dst, const void *src, unsigned long n)
+ 	return 0;
+ }
+ 
+-DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
++DEFINE_OUTPUT_COPY(__output_copy, memcpy_common, )
+ 
+ static inline unsigned long
+ memcpy_skip(void *dst, const void *src, unsigned long n)
+@@ -125,7 +125,7 @@ memcpy_skip(void *dst, const void *src, unsigned long n)
+ 	return 0;
+ }
+ 
+-DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip)
++DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip, )
+ 
+ #ifndef arch_perf_out_copy_user
+ #define arch_perf_out_copy_user arch_perf_out_copy_user
+@@ -143,7 +143,7 @@ arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
+ }
+ #endif
+ 
+-DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
++DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user, __user)
+ 
+ /* Callchain handling */
+ extern struct perf_callchain_entry *
+diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
+index 1139b22..5aac2f9 100644
+--- a/kernel/events/uprobes.c
++++ b/kernel/events/uprobes.c
+@@ -1665,7 +1665,7 @@ static int is_trap_at_addr(struct mm_struct *mm, unsigned long vaddr)
+ {
+ 	struct page *page;
+ 	uprobe_opcode_t opcode;
+-	int result;
++	long result;
+ 
+ 	pagefault_disable();
+ 	result = __copy_from_user_inatomic(&opcode, (void __user*)vaddr,
+diff --git a/kernel/exit.c b/kernel/exit.c
+index 81b3d67..ef189a4 100644
+--- a/kernel/exit.c
++++ b/kernel/exit.c
+@@ -173,6 +173,10 @@ void release_task(struct task_struct * p)
+ 	struct task_struct *leader;
+ 	int zap_leader;
+ repeat:
++#ifdef CONFIG_NET
++	gr_del_task_from_ip_table(p);
++#endif
++
+ 	/* don't need to get the RCU readlock here - the process is dead and
+ 	 * can't be modifying its own credentials. But shut RCU-lockdep up */
+ 	rcu_read_lock();
+@@ -330,7 +334,7 @@ int allow_signal(int sig)
+ 	 * know it'll be handled, so that they don't get converted to
+ 	 * SIGKILL or just silently dropped.
+ 	 */
+-	current->sighand->action[(sig)-1].sa.sa_handler = (void __user *)2;
++	current->sighand->action[(sig)-1].sa.sa_handler = (__force void __user *)2;
+ 	recalc_sigpending();
+ 	spin_unlock_irq(&current->sighand->siglock);
+ 	return 0;
+@@ -706,6 +710,8 @@ void do_exit(long code)
+ 	struct task_struct *tsk = current;
+ 	int group_dead;
+ 
++	set_fs(USER_DS);
++
+ 	profile_task_exit(tsk);
+ 
+ 	WARN_ON(blk_needs_flush_plug(tsk));
+@@ -722,7 +728,6 @@ void do_exit(long code)
+ 	 * mm_release()->clear_child_tid() from writing to a user-controlled
+ 	 * kernel address.
+ 	 */
+-	set_fs(USER_DS);
+ 
+ 	ptrace_event(PTRACE_EVENT_EXIT, code);
+ 
+@@ -781,6 +786,9 @@ void do_exit(long code)
+ 	tsk->exit_code = code;
+ 	taskstats_exit(tsk, group_dead);
+ 
++	gr_acl_handle_psacct(tsk, code);
++	gr_acl_handle_exit();
++
+ 	exit_mm(tsk);
+ 
+ 	if (group_dead)
+@@ -900,7 +908,7 @@ SYSCALL_DEFINE1(exit, int, error_code)
+  * Take down every thread in the group.  This is called by fatal signals
+  * as well as by sys_exit_group (below).
+  */
+-void
++__noreturn void
+ do_group_exit(int exit_code)
+ {
+ 	struct signal_struct *sig = current->signal;
+diff --git a/kernel/fork.c b/kernel/fork.c
+index e2c6853..d5a5c13 100644
+--- a/kernel/fork.c
++++ b/kernel/fork.c
+@@ -176,12 +176,54 @@ static void free_thread_info(struct thread_info *ti)
+ void thread_info_cache_init(void)
+ {
+ 	thread_info_cache = kmem_cache_create("thread_info", THREAD_SIZE,
+-					      THREAD_SIZE, 0, NULL);
++					      THREAD_SIZE, SLAB_USERCOPY, NULL);
+ 	BUG_ON(thread_info_cache == NULL);
+ }
+ # endif
+ #endif
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
++						  int node, void **lowmem_stack)
++{
++	struct page *pages[THREAD_SIZE / PAGE_SIZE];
++	void *ret = NULL;
++	unsigned int i;
++
++	*lowmem_stack = alloc_thread_info_node(tsk, node);
++	if (*lowmem_stack == NULL)
++		goto out;
++
++	for (i = 0; i < THREAD_SIZE / PAGE_SIZE; i++)
++		pages[i] = virt_to_page(*lowmem_stack + (i * PAGE_SIZE));
++	
++	/* use VM_IOREMAP to gain THREAD_SIZE alignment */
++	ret = vmap(pages, THREAD_SIZE / PAGE_SIZE, VM_IOREMAP, PAGE_KERNEL);
++	if (ret == NULL) {
++		free_thread_info(*lowmem_stack);
++		*lowmem_stack = NULL;
++	}
++
++out:
++	return ret;
++}
++
++static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
++{
++	unmap_process_stacks(tsk);
++}
++#else
++static inline struct thread_info *gr_alloc_thread_info_node(struct task_struct *tsk,
++						  int node, void **lowmem_stack)
++{
++	return alloc_thread_info_node(tsk, node);
++}
++static inline void gr_free_thread_info(struct task_struct *tsk, struct thread_info *ti)
++{
++	free_thread_info(ti);
++}
++#endif
++
+ /* SLAB cache for signal_struct structures (tsk->signal) */
+ static struct kmem_cache *signal_cachep;
+ 
+@@ -200,18 +242,22 @@ struct kmem_cache *vm_area_cachep;
+ /* SLAB cache for mm_struct structures (tsk->mm) */
+ static struct kmem_cache *mm_cachep;
+ 
+-static void account_kernel_stack(struct thread_info *ti, int account)
++static void account_kernel_stack(struct task_struct *tsk, struct thread_info *ti, int account)
+ {
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++	struct zone *zone = page_zone(virt_to_page(tsk->lowmem_stack));
++#else
+ 	struct zone *zone = page_zone(virt_to_page(ti));
++#endif
+ 
+ 	mod_zone_page_state(zone, NR_KERNEL_STACK, account);
+ }
+ 
+ void free_task(struct task_struct *tsk)
+ {
+-	account_kernel_stack(tsk->stack, -1);
++	account_kernel_stack(tsk, tsk->stack, -1);
+ 	arch_release_thread_info(tsk->stack);
+-	free_thread_info(tsk->stack);
++	gr_free_thread_info(tsk, tsk->stack);
+ 	rt_mutex_debug_task_free(tsk);
+ 	ftrace_graph_exit_task(tsk);
+ 	put_seccomp_filter(tsk);
+@@ -297,6 +343,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ 	struct task_struct *tsk;
+ 	struct thread_info *ti;
+ 	unsigned long *stackend;
++	void *lowmem_stack;
+ 	int node = tsk_fork_get_node(orig);
+ 	int err;
+ 
+@@ -304,7 +351,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ 	if (!tsk)
+ 		return NULL;
+ 
+-	ti = alloc_thread_info_node(tsk, node);
++	ti = gr_alloc_thread_info_node(tsk, node, &lowmem_stack);
+ 	if (!ti)
+ 		goto free_tsk;
+ 
+@@ -313,6 +360,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ 		goto free_ti;
+ 
+ 	tsk->stack = ti;
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++	tsk->lowmem_stack = lowmem_stack;
++#endif
+ 
+ 	setup_thread_stack(tsk, orig);
+ 	clear_user_return_notifier(tsk);
+@@ -321,7 +371,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ 	*stackend = STACK_END_MAGIC;	/* for overflow detection */
+ 
+ #ifdef CONFIG_CC_STACKPROTECTOR
+-	tsk->stack_canary = get_random_int();
++	tsk->stack_canary = pax_get_random_long();
+ #endif
+ 
+ 	/*
+@@ -335,24 +385,92 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
+ 	tsk->splice_pipe = NULL;
+ 	tsk->task_frag.page = NULL;
+ 
+-	account_kernel_stack(ti, 1);
++	account_kernel_stack(tsk, ti, 1);
+ 
+ 	return tsk;
+ 
+ free_ti:
+-	free_thread_info(ti);
++	gr_free_thread_info(tsk, ti);
+ free_tsk:
+ 	free_task_struct(tsk);
+ 	return NULL;
+ }
+ 
+ #ifdef CONFIG_MMU
+-static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
++static struct vm_area_struct *dup_vma(struct mm_struct *mm, struct mm_struct *oldmm, struct vm_area_struct *mpnt)
++{
++	struct vm_area_struct *tmp;
++	unsigned long charge;
++	struct file *file;
++	int retval;
++
++	charge = 0;
++	if (mpnt->vm_flags & VM_ACCOUNT) {
++		unsigned long len = vma_pages(mpnt);
++
++		if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
++			goto fail_nomem;
++		charge = len;
++	}
++	tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
++	if (!tmp)
++		goto fail_nomem;
++	*tmp = *mpnt;
++	tmp->vm_mm = mm;
++	INIT_LIST_HEAD(&tmp->anon_vma_chain);
++	retval = vma_dup_policy(mpnt, tmp);
++	if (retval)
++		goto fail_nomem_policy;
++	if (anon_vma_fork(tmp, mpnt))
++		goto fail_nomem_anon_vma_fork;
++	tmp->vm_flags &= ~VM_LOCKED;
++	tmp->vm_next = tmp->vm_prev = NULL;
++	tmp->vm_mirror = NULL;
++	file = tmp->vm_file;
++	if (file) {
++		struct inode *inode = file_inode(file);
++		struct address_space *mapping = file->f_mapping;
++
++		get_file(file);
++		if (tmp->vm_flags & VM_DENYWRITE)
++			atomic_dec(&inode->i_writecount);
++		mutex_lock(&mapping->i_mmap_mutex);
++		if (tmp->vm_flags & VM_SHARED)
++			mapping->i_mmap_writable++;
++		flush_dcache_mmap_lock(mapping);
++		/* insert tmp into the share list, just after mpnt */
++		if (unlikely(tmp->vm_flags & VM_NONLINEAR))
++			vma_nonlinear_insert(tmp, &mapping->i_mmap_nonlinear);
++		else
++			vma_interval_tree_insert_after(tmp, mpnt, &mapping->i_mmap);
++		flush_dcache_mmap_unlock(mapping);
++		mutex_unlock(&mapping->i_mmap_mutex);
++	}
++
++	/*
++	 * Clear hugetlb-related page reserves for children. This only
++	 * affects MAP_PRIVATE mappings. Faults generated by the child
++	 * are not guaranteed to succeed, even if read-only
++	 */
++	if (is_vm_hugetlb_page(tmp))
++		reset_vma_resv_huge_pages(tmp);
++
++	return tmp;
++
++fail_nomem_anon_vma_fork:
++	mpol_put(vma_policy(tmp));
++fail_nomem_policy:
++	kmem_cache_free(vm_area_cachep, tmp);
++fail_nomem:
++	vm_unacct_memory(charge);
++	return NULL;
++}
++
++static __latent_entropy int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
+ {
+ 	struct vm_area_struct *mpnt, *tmp, *prev, **pprev;
+ 	struct rb_node **rb_link, *rb_parent;
+ 	int retval;
+-	unsigned long charge;
+ 
+ 	uprobe_start_dup_mmap();
+ 	down_write(&oldmm->mmap_sem);
+@@ -381,55 +499,15 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
+ 
+ 	prev = NULL;
+ 	for (mpnt = oldmm->mmap; mpnt; mpnt = mpnt->vm_next) {
+-		struct file *file;
+-
+ 		if (mpnt->vm_flags & VM_DONTCOPY) {
+ 			vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
+ 							-vma_pages(mpnt));
+ 			continue;
+ 		}
+-		charge = 0;
+-		if (mpnt->vm_flags & VM_ACCOUNT) {
+-			unsigned long len = vma_pages(mpnt);
+-
+-			if (security_vm_enough_memory_mm(oldmm, len)) /* sic */
+-				goto fail_nomem;
+-			charge = len;
+-		}
+-		tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+-		if (!tmp)
+-			goto fail_nomem;
+-		*tmp = *mpnt;
+-		INIT_LIST_HEAD(&tmp->anon_vma_chain);
+-		retval = vma_dup_policy(mpnt, tmp);
+-		if (retval)
+-			goto fail_nomem_policy;
+-		tmp->vm_mm = mm;
+-		if (anon_vma_fork(tmp, mpnt))
+-			goto fail_nomem_anon_vma_fork;
+-		tmp->vm_flags &= ~VM_LOCKED;
+-		tmp->vm_next = tmp->vm_prev = NULL;
+-		file = tmp->vm_file;
+-		if (file) {
+-			struct inode *inode = file_inode(file);
+-			struct address_space *mapping = file->f_mapping;
+-
+-			get_file(file);
+-			if (tmp->vm_flags & VM_DENYWRITE)
+-				atomic_dec(&inode->i_writecount);
+-			mutex_lock(&mapping->i_mmap_mutex);
+-			if (tmp->vm_flags & VM_SHARED)
+-				mapping->i_mmap_writable++;
+-			flush_dcache_mmap_lock(mapping);
+-			/* insert tmp into the share list, just after mpnt */
+-			if (unlikely(tmp->vm_flags & VM_NONLINEAR))
+-				vma_nonlinear_insert(tmp,
+-						&mapping->i_mmap_nonlinear);
+-			else
+-				vma_interval_tree_insert_after(tmp, mpnt,
+-							&mapping->i_mmap);
+-			flush_dcache_mmap_unlock(mapping);
+-			mutex_unlock(&mapping->i_mmap_mutex);
++		tmp = dup_vma(mm, oldmm, mpnt);
++		if (!tmp) {
++			retval = -ENOMEM;
++			goto out;
+ 		}
+ 
+ 		/*
+@@ -461,6 +539,31 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
+ 		if (retval)
+ 			goto out;
+ 	}
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (oldmm->pax_flags & MF_PAX_SEGMEXEC) {
++		struct vm_area_struct *mpnt_m;
++
++		for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) {
++			BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm);
++
++			if (!mpnt->vm_mirror)
++				continue;
++
++			if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) {
++				BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt);
++				mpnt->vm_mirror = mpnt_m;
++			} else {
++				BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm);
++				mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror;
++				mpnt_m->vm_mirror->vm_mirror = mpnt_m;
++				mpnt->vm_mirror->vm_mirror = mpnt;
++			}
++		}
++		BUG_ON(mpnt_m);
++	}
++#endif
++
+ 	/* a new mm has just been created */
+ 	arch_dup_mmap(oldmm, mm);
+ 	retval = 0;
+@@ -470,14 +573,6 @@ out:
+ 	up_write(&oldmm->mmap_sem);
+ 	uprobe_end_dup_mmap();
+ 	return retval;
+-fail_nomem_anon_vma_fork:
+-	mpol_put(vma_policy(tmp));
+-fail_nomem_policy:
+-	kmem_cache_free(vm_area_cachep, tmp);
+-fail_nomem:
+-	retval = -ENOMEM;
+-	vm_unacct_memory(charge);
+-	goto out;
+ }
+ 
+ static inline int mm_alloc_pgd(struct mm_struct *mm)
+@@ -691,8 +786,8 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
+ 		return ERR_PTR(err);
+ 
+ 	mm = get_task_mm(task);
+-	if (mm && mm != current->mm &&
+-			!ptrace_may_access(task, mode)) {
++	if (mm && ((mm != current->mm && !ptrace_may_access(task, mode)) ||
++		  (mode == PTRACE_MODE_ATTACH && (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task))))) {
+ 		mmput(mm);
+ 		mm = ERR_PTR(-EACCES);
+ 	}
+@@ -911,13 +1006,20 @@ static int copy_fs(unsigned long clone_flags, struct task_struct *tsk)
+ 			spin_unlock(&fs->lock);
+ 			return -EAGAIN;
+ 		}
+-		fs->users++;
++		atomic_inc(&fs->users);
+ 		spin_unlock(&fs->lock);
+ 		return 0;
+ 	}
+ 	tsk->fs = copy_fs_struct(fs);
+ 	if (!tsk->fs)
+ 		return -ENOMEM;
++	/* Carry through gr_chroot_dentry and is_chrooted instead
++	   of recomputing it here.  Already copied when the task struct
++	   is duplicated.  This allows pivot_root to not be treated as
++	   a chroot
++	*/
++	//gr_set_chroot_entries(tsk, &tsk->fs->root);
++
+ 	return 0;
+ }
+ 
+@@ -1135,7 +1237,7 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
+  * parts of the process environment (as per the clone
+  * flags). The actual kick-off is left to the caller.
+  */
+-static struct task_struct *copy_process(unsigned long clone_flags,
++static __latent_entropy struct task_struct *copy_process(unsigned long clone_flags,
+ 					unsigned long stack_start,
+ 					unsigned long stack_size,
+ 					int __user *child_tidptr,
+@@ -1207,6 +1309,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
+ 	DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
+ #endif
+ 	retval = -EAGAIN;
++
++	gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->real_cred->user->processes), 0);
++
+ 	if (atomic_read(&p->real_cred->user->processes) >=
+ 			task_rlimit(p, RLIMIT_NPROC)) {
+ 		if (p->real_cred->user != INIT_USER &&
+@@ -1454,6 +1559,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
+ 		goto bad_fork_free_pid;
+ 	}
+ 
++	/* synchronizes with gr_set_acls()
++	   we need to call this past the point of no return for fork()
++	*/
++	gr_copy_label(p);
++
+ 	if (likely(p->pid)) {
+ 		ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
+ 
+@@ -1545,6 +1655,8 @@ bad_fork_cleanup_count:
+ bad_fork_free:
+ 	free_task(p);
+ fork_out:
++	gr_log_forkfail(retval);
++
+ 	return ERR_PTR(retval);
+ }
+ 
+@@ -1606,6 +1718,7 @@ long do_fork(unsigned long clone_flags,
+ 
+ 	p = copy_process(clone_flags, stack_start, stack_size,
+ 			 child_tidptr, NULL, trace);
++	add_latent_entropy();
+ 	/*
+ 	 * Do this prior waking up the new thread - the thread pointer
+ 	 * might get invalid after that point, if the thread exits quickly.
+@@ -1622,6 +1735,8 @@ long do_fork(unsigned long clone_flags,
+ 		if (clone_flags & CLONE_PARENT_SETTID)
+ 			put_user(nr, parent_tidptr);
+ 
++		gr_handle_brute_check();
++
+ 		if (clone_flags & CLONE_VFORK) {
+ 			p->vfork_done = &vfork;
+ 			init_completion(&vfork);
+@@ -1740,7 +1855,7 @@ void __init proc_caches_init(void)
+ 	mm_cachep = kmem_cache_create("mm_struct",
+ 			sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN,
+ 			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL);
+-	vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC);
++	vm_area_cachep = KMEM_CACHE(vm_area_struct, SLAB_PANIC | SLAB_NO_SANITIZE);
+ 	mmap_init();
+ 	nsproxy_cache_init();
+ }
+@@ -1780,7 +1895,7 @@ static int unshare_fs(unsigned long unshare_flags, struct fs_struct **new_fsp)
+ 		return 0;
+ 
+ 	/* don't need lock here; in the worst case we'll do useless copy */
+-	if (fs->users == 1)
++	if (atomic_read(&fs->users) == 1)
+ 		return 0;
+ 
+ 	*new_fsp = copy_fs_struct(fs);
+@@ -1887,7 +2002,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
+ 			fs = current->fs;
+ 			spin_lock(&fs->lock);
+ 			current->fs = new_fs;
+-			if (--fs->users)
++			gr_set_chroot_entries(current, &current->fs->root);
++			if (atomic_dec_return(&fs->users))
+ 				new_fs = NULL;
+ 			else
+ 				new_fs = fs;
+diff --git a/kernel/futex.c b/kernel/futex.c
+index fda2950..5f3eb62 100644
+--- a/kernel/futex.c
++++ b/kernel/futex.c
+@@ -54,6 +54,7 @@
+ #include <linux/mount.h>
+ #include <linux/pagemap.h>
+ #include <linux/syscalls.h>
++#include <linux/ptrace.h>
+ #include <linux/signal.h>
+ #include <linux/export.h>
+ #include <linux/magic.h>
+@@ -188,7 +189,7 @@ struct futex_pi_state {
+ 	atomic_t refcount;
+ 
+ 	union futex_key key;
+-};
++} __randomize_layout;
+ 
+ /**
+  * struct futex_q - The hashed futex queue entry, one per waiting task
+@@ -222,7 +223,7 @@ struct futex_q {
+ 	struct rt_mutex_waiter *rt_waiter;
+ 	union futex_key *requeue_pi_key;
+ 	u32 bitset;
+-};
++} __randomize_layout;
+ 
+ static const struct futex_q futex_q_init = {
+ 	/* list gets initialized in queue_me()*/
+@@ -382,6 +383,11 @@ get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw)
+ 	struct page *page, *page_head;
+ 	int err, ro = 0;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE)
++		return -EFAULT;
++#endif
++
+ 	/*
+ 	 * The futex address must be "naturally" aligned.
+ 	 */
+@@ -581,7 +587,7 @@ static int cmpxchg_futex_value_locked(u32 *curval, u32 __user *uaddr,
+ 
+ static int get_futex_value_locked(u32 *dest, u32 __user *from)
+ {
+-	int ret;
++	unsigned long ret;
+ 
+ 	pagefault_disable();
+ 	ret = __copy_from_user_inatomic(dest, from, sizeof(u32));
+@@ -3022,6 +3028,7 @@ static void __init futex_detect_cmpxchg(void)
+ {
+ #ifndef CONFIG_HAVE_FUTEX_CMPXCHG
+ 	u32 curval;
++	mm_segment_t oldfs;
+ 
+ 	/*
+ 	 * This will fail and we want it. Some arch implementations do
+@@ -3033,8 +3040,11 @@ static void __init futex_detect_cmpxchg(void)
+ 	 * implementation, the non-functional ones will return
+ 	 * -ENOSYS.
+ 	 */
++	oldfs = get_fs();
++	set_fs(USER_DS);
+ 	if (cmpxchg_futex_value_locked(&curval, NULL, 0, 0) == -EFAULT)
+ 		futex_cmpxchg_enabled = 1;
++	set_fs(oldfs);
+ #endif
+ }
+ 
+diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
+index f9f44fd..29885e4 100644
+--- a/kernel/futex_compat.c
++++ b/kernel/futex_compat.c
+@@ -32,7 +32,7 @@ fetch_robust_entry(compat_uptr_t *uentry, struct robust_list __user **entry,
+ 	return 0;
+ }
+ 
+-static void __user *futex_uaddr(struct robust_list __user *entry,
++static void __user __intentional_overflow(-1) *futex_uaddr(struct robust_list __user *entry,
+ 				compat_long_t futex_offset)
+ {
+ 	compat_uptr_t base = ptr_to_compat(entry);
+diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
+index f45b75b..bfac6d5 100644
+--- a/kernel/gcov/base.c
++++ b/kernel/gcov/base.c
+@@ -108,11 +108,6 @@ void gcov_enable_events(void)
+ }
+ 
+ #ifdef CONFIG_MODULES
+-static inline int within(void *addr, void *start, unsigned long size)
+-{
+-	return ((addr >= start) && (addr < start + size));
+-}
+-
+ /* Update list and generate events when modules are unloaded. */
+ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
+ 				void *data)
+@@ -127,7 +122,7 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
+ 
+ 	/* Remove entries located in module from linked list. */
+ 	while ((info = gcov_info_next(info))) {
+-		if (within(info, mod->module_core, mod->core_size)) {
++		if (within_module_core_rw((unsigned long)info, mod)) {
+ 			gcov_info_unlink(prev, info);
+ 			if (gcov_events_enabled)
+ 				gcov_event(GCOV_REMOVE, info);
+diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
+index 04d0374..e7c3725 100644
+--- a/kernel/hrtimer.c
++++ b/kernel/hrtimer.c
+@@ -1461,7 +1461,7 @@ void hrtimer_peek_ahead_timers(void)
+ 	local_irq_restore(flags);
+ }
+ 
+-static void run_hrtimer_softirq(struct softirq_action *h)
++static __latent_entropy void run_hrtimer_softirq(void)
+ {
+ 	hrtimer_peek_ahead_timers();
+ }
+diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
+index ebb8a9e..16769a5e 100644
+--- a/kernel/irq/manage.c
++++ b/kernel/irq/manage.c
+@@ -857,7 +857,7 @@ static int irq_thread(void *data)
+ 
+ 		action_ret = handler_fn(desc, action);
+ 		if (action_ret == IRQ_HANDLED)
+-			atomic_inc(&desc->threads_handled);
++			atomic_inc_unchecked(&desc->threads_handled);
+ 
+ 		wake_threads_waitq(desc);
+ 	}
+diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
+index e2514b0..de3dfe0 100644
+--- a/kernel/irq/spurious.c
++++ b/kernel/irq/spurious.c
+@@ -337,7 +337,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
+ 			 * count. We just care about the count being
+ 			 * different than the one we saw before.
+ 			 */
+-			handled = atomic_read(&desc->threads_handled);
++			handled = atomic_read_unchecked(&desc->threads_handled);
+ 			handled |= SPURIOUS_DEFERRED;
+ 			if (handled != desc->threads_handled_last) {
+ 				action_ret = IRQ_HANDLED;
+diff --git a/kernel/irq_work.c b/kernel/irq_work.c
+index 55fcce6..0e4cf34 100644
+--- a/kernel/irq_work.c
++++ b/kernel/irq_work.c
+@@ -189,12 +189,13 @@ static int irq_work_cpu_notify(struct notifier_block *self,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block cpu_notify;
++static struct notifier_block cpu_notify = {
++	.notifier_call = irq_work_cpu_notify,
++	.priority = 0,
++};
+ 
+ static __init int irq_work_init_cpu_notifier(void)
+ {
+-	cpu_notify.notifier_call = irq_work_cpu_notify;
+-	cpu_notify.priority = 0;
+ 	register_cpu_notifier(&cpu_notify);
+ 	return 0;
+ }
+diff --git a/kernel/jump_label.c b/kernel/jump_label.c
+index 9019f15..9a3c42e 100644
+--- a/kernel/jump_label.c
++++ b/kernel/jump_label.c
+@@ -14,6 +14,7 @@
+ #include <linux/err.h>
+ #include <linux/static_key.h>
+ #include <linux/jump_label_ratelimit.h>
++#include <linux/mm.h>
+ 
+ #ifdef HAVE_JUMP_LABEL
+ 
+@@ -51,7 +52,9 @@ jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop)
+ 
+ 	size = (((unsigned long)stop - (unsigned long)start)
+ 					/ sizeof(struct jump_entry));
++	pax_open_kernel();
+ 	sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL);
++	pax_close_kernel();
+ }
+ 
+ static void jump_label_update(struct static_key *key, int enable);
+@@ -363,10 +366,12 @@ static void jump_label_invalidate_module_init(struct module *mod)
+ 	struct jump_entry *iter_stop = iter_start + mod->num_jump_entries;
+ 	struct jump_entry *iter;
+ 
++	pax_open_kernel();
+ 	for (iter = iter_start; iter < iter_stop; iter++) {
+ 		if (within_module_init(iter->code, mod))
+ 			iter->code = 0;
+ 	}
++	pax_close_kernel();
+ }
+ 
+ static int
+diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
+index 3127ad5..159d880 100644
+--- a/kernel/kallsyms.c
++++ b/kernel/kallsyms.c
+@@ -11,6 +11,9 @@
+  *      Changed the compression method from stem compression to "table lookup"
+  *      compression (see scripts/kallsyms.c for a more complete description)
+  */
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++#define __INCLUDED_BY_HIDESYM 1
++#endif
+ #include <linux/kallsyms.h>
+ #include <linux/module.h>
+ #include <linux/init.h>
+@@ -53,12 +56,33 @@ extern const unsigned long kallsyms_markers[] __attribute__((weak));
+ 
+ static inline int is_kernel_inittext(unsigned long addr)
+ {
++	if (system_state != SYSTEM_BOOTING)
++		return 0;
++
+ 	if (addr >= (unsigned long)_sinittext
+ 	    && addr <= (unsigned long)_einittext)
+ 		return 1;
+ 	return 0;
+ }
+ 
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++#ifdef CONFIG_MODULES
++static inline int is_module_text(unsigned long addr)
++{
++	if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END)
++		return 1;
++
++	addr = ktla_ktva(addr);
++	return (unsigned long)MODULES_EXEC_VADDR <= addr && addr <= (unsigned long)MODULES_EXEC_END;
++}
++#else
++static inline int is_module_text(unsigned long addr)
++{
++	return 0;
++}
++#endif
++#endif
++
+ static inline int is_kernel_text(unsigned long addr)
+ {
+ 	if ((addr >= (unsigned long)_stext && addr <= (unsigned long)_etext) ||
+@@ -69,13 +93,28 @@ static inline int is_kernel_text(unsigned long addr)
+ 
+ static inline int is_kernel(unsigned long addr)
+ {
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	if (is_kernel_text(addr) || is_kernel_inittext(addr))
++		return 1;
++
++	if (ktla_ktva((unsigned long)_text) <= addr && addr < (unsigned long)_end)
++#else
+ 	if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
++#endif
++
+ 		return 1;
+ 	return in_gate_area_no_mm(addr);
+ }
+ 
+ static int is_ksym_addr(unsigned long addr)
+ {
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	if (is_module_text(addr))
++		return 0;
++#endif
++
+ 	if (all_var)
+ 		return is_kernel(addr);
+ 
+@@ -480,7 +519,6 @@ static unsigned long get_ksymbol_core(struct kallsym_iter *iter)
+ 
+ static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
+ {
+-	iter->name[0] = '\0';
+ 	iter->nameoff = get_symbol_offset(new_pos);
+ 	iter->pos = new_pos;
+ }
+@@ -528,6 +566,11 @@ static int s_show(struct seq_file *m, void *p)
+ {
+ 	struct kallsym_iter *iter = m->private;
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID))
++		return 0;
++#endif
++
+ 	/* Some debugging symbols have no name.  Ignore them. */
+ 	if (!iter->name[0])
+ 		return 0;
+@@ -541,6 +584,7 @@ static int s_show(struct seq_file *m, void *p)
+ 		 */
+ 		type = iter->exported ? toupper(iter->type) :
+ 					tolower(iter->type);
++
+ 		seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
+ 			   type, iter->name, iter->module_name);
+ 	} else
+@@ -566,7 +610,7 @@ static int kallsyms_open(struct inode *inode, struct file *file)
+ 	struct kallsym_iter *iter;
+ 	int ret;
+ 
+-	iter = kmalloc(sizeof(*iter), GFP_KERNEL);
++	iter = kzalloc(sizeof(*iter), GFP_KERNEL);
+ 	if (!iter)
+ 		return -ENOMEM;
+ 	reset_iter(iter, 0);
+diff --git a/kernel/kcmp.c b/kernel/kcmp.c
+index 0aa69ea..a7fcafb 100644
+--- a/kernel/kcmp.c
++++ b/kernel/kcmp.c
+@@ -100,6 +100,10 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
+ 	struct task_struct *task1, *task2;
+ 	int ret;
+ 
++#ifdef CONFIG_GRKERNSEC
++	return -ENOSYS;
++#endif
++
+ 	rcu_read_lock();
+ 
+ 	/*
+diff --git a/kernel/kexec.c b/kernel/kexec.c
+index 18ff0b9..40b0eab 100644
+--- a/kernel/kexec.c
++++ b/kernel/kexec.c
+@@ -1045,7 +1045,8 @@ asmlinkage long compat_sys_kexec_load(unsigned long entry,
+ 				unsigned long flags)
+ {
+ 	struct compat_kexec_segment in;
+-	struct kexec_segment out, __user *ksegments;
++	struct kexec_segment out;
++	struct kexec_segment __user *ksegments;
+ 	unsigned long i, result;
+ 
+ 	/* Don't allow clients that don't understand the native
+diff --git a/kernel/kmod.c b/kernel/kmod.c
+index 6b375af..d5d59d4 100644
+--- a/kernel/kmod.c
++++ b/kernel/kmod.c
+@@ -75,7 +75,7 @@ static void free_modprobe_argv(struct subprocess_info *info)
+ 	kfree(info->argv);
+ }
+ 
+-static int call_modprobe(char *module_name, int wait)
++static int call_modprobe(char *module_name, char *module_param, int wait)
+ {
+ 	struct subprocess_info *info;
+ 	static char *envp[] = {
+@@ -85,7 +85,7 @@ static int call_modprobe(char *module_name, int wait)
+ 		NULL
+ 	};
+ 
+-	char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
++	char **argv = kmalloc(sizeof(char *[6]), GFP_KERNEL);
+ 	if (!argv)
+ 		goto out;
+ 
+@@ -97,7 +97,8 @@ static int call_modprobe(char *module_name, int wait)
+ 	argv[1] = "-q";
+ 	argv[2] = "--";
+ 	argv[3] = module_name;	/* check free_modprobe_argv() */
+-	argv[4] = NULL;
++	argv[4] = module_param;
++	argv[5] = NULL;
+ 
+ 	info = call_usermodehelper_setup(modprobe_path, argv, envp, GFP_KERNEL,
+ 					 NULL, free_modprobe_argv, NULL);
+@@ -129,9 +130,8 @@ out:
+  * If module auto-loading support is disabled then this function
+  * becomes a no-operation.
+  */
+-int __request_module(bool wait, const char *fmt, ...)
++static int ____request_module(bool wait, char *module_param, const char *fmt, va_list ap)
+ {
+-	va_list args;
+ 	char module_name[MODULE_NAME_LEN];
+ 	unsigned int max_modprobes;
+ 	int ret;
+@@ -150,9 +150,7 @@ int __request_module(bool wait, const char *fmt, ...)
+ 	if (!modprobe_path[0])
+ 		return 0;
+ 
+-	va_start(args, fmt);
+-	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
+-	va_end(args);
++	ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, ap);
+ 	if (ret >= MODULE_NAME_LEN)
+ 		return -ENAMETOOLONG;
+ 
+@@ -160,6 +158,20 @@ int __request_module(bool wait, const char *fmt, ...)
+ 	if (ret)
+ 		return ret;
+ 
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++	if (uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
++		/* hack to workaround consolekit/udisks stupidity */
++		read_lock(&tasklist_lock);
++		if (!strcmp(current->comm, "mount") &&
++		    current->real_parent && !strncmp(current->real_parent->comm, "udisk", 5)) {
++			read_unlock(&tasklist_lock);
++			printk(KERN_ALERT "grsec: denied attempt to auto-load fs module %.64s by udisks\n", module_name);
++			return -EPERM;
++		}
++		read_unlock(&tasklist_lock);
++	}
++#endif
++
+ 	/* If modprobe needs a service that is in a module, we get a recursive
+ 	 * loop.  Limit the number of running kmod threads to max_threads/2 or
+ 	 * MAX_KMOD_CONCURRENT, whichever is the smaller.  A cleaner method
+@@ -188,11 +200,52 @@ int __request_module(bool wait, const char *fmt, ...)
+ 
+ 	trace_module_request(module_name, wait, _RET_IP_);
+ 
+-	ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
++	ret = call_modprobe(module_name, module_param, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
+ 
+ 	atomic_dec(&kmod_concurrent);
+ 	return ret;
+ }
++
++int ___request_module(bool wait, char *module_param, const char *fmt, ...)
++{
++	va_list args;
++	int ret;
++
++	va_start(args, fmt);
++	ret = ____request_module(wait, module_param, fmt, args);
++	va_end(args);
++
++	return ret;
++}
++
++int __request_module(bool wait, const char *fmt, ...)
++{
++	va_list args;
++	int ret;
++
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++	if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)) {
++		char module_param[MODULE_NAME_LEN];
++
++		memset(module_param, 0, sizeof(module_param));
++
++		snprintf(module_param, sizeof(module_param) - 1, "grsec_modharden_normal%u_", GR_GLOBAL_UID(current_uid()));
++
++		va_start(args, fmt);
++		ret = ____request_module(wait, module_param, fmt, args);
++		va_end(args);
++
++		return ret;
++	}
++#endif
++
++	va_start(args, fmt);
++	ret = ____request_module(wait, NULL, fmt, args);
++	va_end(args);
++
++	return ret;
++}
++
+ EXPORT_SYMBOL(__request_module);
+ #endif /* CONFIG_MODULES */
+ 
+@@ -218,6 +271,21 @@ static int ____call_usermodehelper(void *data)
+ 	 */
+ 	set_user_nice(current, 0);
+ 
++#ifdef CONFIG_GRKERNSEC
++	/* this is race-free as far as userland is concerned as we copied
++	   out the path to be used prior to this point and are now operating
++	   on that copy
++	*/
++	if ((strncmp(sub_info->path, "/sbin/", 6) && strncmp(sub_info->path, "/usr/lib/", 9) &&
++	     strncmp(sub_info->path, "/lib/", 5) && strncmp(sub_info->path, "/lib64/", 7) &&
++	     strncmp(sub_info->path, "/usr/libexec/", 13) && strncmp(sub_info->path, "/usr/bin/", 9) &&
++	     strcmp(sub_info->path, "/usr/share/apport/apport")) || strstr(sub_info->path, "..")) {
++		printk(KERN_ALERT "grsec: denied exec of usermode helper binary %.950s located outside of permitted system paths\n", sub_info->path);
++		retval = -EPERM;
++		goto fail;
++	}
++#endif
++
+ 	retval = -ENOMEM;
+ 	new = prepare_kernel_cred(current);
+ 	if (!new)
+@@ -240,8 +308,8 @@ static int ____call_usermodehelper(void *data)
+ 	commit_creds(new);
+ 
+ 	retval = do_execve(getname_kernel(sub_info->path),
+-			   (const char __user *const __user *)sub_info->argv,
+-			   (const char __user *const __user *)sub_info->envp);
++			   (const char __user *const __force_user *)sub_info->argv,
++			   (const char __user *const __force_user *)sub_info->envp);
+ 	if (!retval)
+ 		return 0;
+ 
+@@ -260,6 +328,10 @@ static int call_helper(void *data)
+ 
+ static void call_usermodehelper_freeinfo(struct subprocess_info *info)
+ {
++#ifdef CONFIG_GRKERNSEC
++	kfree(info->path);
++	info->path = info->origpath;
++#endif
+ 	if (info->cleanup)
+ 		(*info->cleanup)(info);
+ 	kfree(info);
+@@ -303,7 +375,7 @@ static int wait_for_helper(void *data)
+ 		 *
+ 		 * Thus the __user pointer cast is valid here.
+ 		 */
+-		sys_wait4(pid, (int __user *)&ret, 0, NULL);
++		sys_wait4(pid, (int __force_user *)&ret, 0, NULL);
+ 
+ 		/*
+ 		 * If ret is 0, either ____call_usermodehelper failed and the
+@@ -542,7 +614,12 @@ struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
+ 		goto out;
+ 
+ 	INIT_WORK(&sub_info->work, __call_usermodehelper);
++#ifdef CONFIG_GRKERNSEC
++	sub_info->origpath = path;
++	sub_info->path = kstrdup(path, gfp_mask);
++#else
+ 	sub_info->path = path;
++#endif
+ 	sub_info->argv = argv;
+ 	sub_info->envp = envp;
+ 
+@@ -650,7 +727,7 @@ EXPORT_SYMBOL(call_usermodehelper);
+ static int proc_cap_handler(struct ctl_table *table, int write,
+ 			 void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table t;
++	ctl_table_no_const t;
+ 	unsigned long cap_array[_KERNEL_CAPABILITY_U32S];
+ 	kernel_cap_t new_cap;
+ 	int err, i;
+diff --git a/kernel/kprobes.c b/kernel/kprobes.c
+index ceeadfc..11c18b6 100644
+--- a/kernel/kprobes.c
++++ b/kernel/kprobes.c
+@@ -31,6 +31,9 @@
+  *		<jkenisto@us.ibm.com> and Prasanna S Panchamukhi
+  *		<prasanna@in.ibm.com> added function-return probes.
+  */
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++#define __INCLUDED_BY_HIDESYM 1
++#endif
+ #include <linux/kprobes.h>
+ #include <linux/hash.h>
+ #include <linux/init.h>
+@@ -135,12 +138,12 @@ enum kprobe_slot_state {
+ 
+ static void *alloc_insn_page(void)
+ {
+-	return module_alloc(PAGE_SIZE);
++	return module_alloc_exec(PAGE_SIZE);
+ }
+ 
+ static void free_insn_page(void *page)
+ {
+-	module_free(NULL, page);
++	module_free_exec(NULL, page);
+ }
+ 
+ struct kprobe_insn_cache kprobe_insn_slots = {
+@@ -2151,11 +2154,11 @@ static void __kprobes report_probe(struct seq_file *pi, struct kprobe *p,
+ 		kprobe_type = "k";
+ 
+ 	if (sym)
+-		seq_printf(pi, "%p  %s  %s+0x%x  %s ",
++		seq_printf(pi, "%pK  %s  %s+0x%x  %s ",
+ 			p->addr, kprobe_type, sym, offset,
+ 			(modname ? modname : " "));
+ 	else
+-		seq_printf(pi, "%p  %s  %p ",
++		seq_printf(pi, "%pK  %s  %pK ",
+ 			p->addr, kprobe_type, p->addr);
+ 
+ 	if (!pp)
+diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c
+index d945a94..0b7f45f 100644
+--- a/kernel/ksysfs.c
++++ b/kernel/ksysfs.c
+@@ -46,6 +46,8 @@ static ssize_t uevent_helper_store(struct kobject *kobj,
+ {
+ 	if (count+1 > UEVENT_HELPER_PATH_LEN)
+ 		return -ENOENT;
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
+ 	memcpy(uevent_helper, buf, count);
+ 	uevent_helper[count] = '\0';
+ 	if (count && uevent_helper[count-1] == '\n')
+@@ -172,7 +174,7 @@ static ssize_t notes_read(struct file *filp, struct kobject *kobj,
+ 	return count;
+ }
+ 
+-static struct bin_attribute notes_attr = {
++static bin_attribute_no_const notes_attr __read_only = {
+ 	.attr = {
+ 		.name = "notes",
+ 		.mode = S_IRUGO,
+diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
+index eb8a547..321d8e1 100644
+--- a/kernel/locking/lockdep.c
++++ b/kernel/locking/lockdep.c
+@@ -597,6 +597,10 @@ static int static_obj(void *obj)
+ 		      end   = (unsigned long) &_end,
+ 		      addr  = (unsigned long) obj;
+ 
++#ifdef CONFIG_PAX_KERNEXEC
++	start = ktla_ktva(start);
++#endif
++
+ 	/*
+ 	 * static variable?
+ 	 */
+@@ -738,6 +742,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
+ 	if (!static_obj(lock->key)) {
+ 		debug_locks_off();
+ 		printk("INFO: trying to register non-static key.\n");
++		printk("lock:%pS key:%pS.\n", lock, lock->key);
+ 		printk("the code is fine but needs lockdep annotation.\n");
+ 		printk("turning off the locking correctness validator.\n");
+ 		dump_stack();
+@@ -3082,7 +3087,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
+ 		if (!class)
+ 			return 0;
+ 	}
+-	atomic_inc((atomic_t *)&class->ops);
++	atomic_long_inc_unchecked((atomic_long_unchecked_t *)&class->ops);
+ 	if (very_verbose(class)) {
+ 		printk("\nacquire class [%p] %s", class->key, class->name);
+ 		if (class->name_version > 1)
+diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
+index ef43ac4..2720dfa 100644
+--- a/kernel/locking/lockdep_proc.c
++++ b/kernel/locking/lockdep_proc.c
+@@ -65,7 +65,7 @@ static int l_show(struct seq_file *m, void *v)
+ 		return 0;
+ 	}
+ 
+-	seq_printf(m, "%p", class->key);
++	seq_printf(m, "%pK", class->key);
+ #ifdef CONFIG_DEBUG_LOCKDEP
+ 	seq_printf(m, " OPS:%8ld", class->ops);
+ #endif
+@@ -83,7 +83,7 @@ static int l_show(struct seq_file *m, void *v)
+ 
+ 	list_for_each_entry(entry, &class->locks_after, entry) {
+ 		if (entry->distance == 1) {
+-			seq_printf(m, " -> [%p] ", entry->class->key);
++			seq_printf(m, " -> [%pK] ", entry->class->key);
+ 			print_name(m, entry->class);
+ 			seq_puts(m, "\n");
+ 		}
+@@ -152,7 +152,7 @@ static int lc_show(struct seq_file *m, void *v)
+ 		if (!class->key)
+ 			continue;
+ 
+-		seq_printf(m, "[%p] ", class->key);
++		seq_printf(m, "[%pK] ", class->key);
+ 		print_name(m, class);
+ 		seq_puts(m, "\n");
+ 	}
+@@ -496,7 +496,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
+ 		if (!i)
+ 			seq_line(m, '-', 40-namelen, namelen);
+ 
+-		snprintf(ip, sizeof(ip), "[<%p>]",
++		snprintf(ip, sizeof(ip), "[<%pK>]",
+ 				(void *)class->contention_point[i]);
+ 		seq_printf(m, "%40s %14lu %29s %pS\n",
+ 			   name, stats->contention_point[i],
+@@ -511,7 +511,7 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
+ 		if (!i)
+ 			seq_line(m, '-', 40-namelen, namelen);
+ 
+-		snprintf(ip, sizeof(ip), "[<%p>]",
++		snprintf(ip, sizeof(ip), "[<%pK>]",
+ 				(void *)class->contending_point[i]);
+ 		seq_printf(m, "%40s %14lu %29s %pS\n",
+ 			   name, stats->contending_point[i],
+diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
+index faf6f5b..dc9070a 100644
+--- a/kernel/locking/mutex-debug.c
++++ b/kernel/locking/mutex-debug.c
+@@ -49,21 +49,21 @@ void debug_mutex_free_waiter(struct mutex_waiter *waiter)
+ }
+ 
+ void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
+-			    struct thread_info *ti)
++			    struct task_struct *task)
+ {
+ 	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
+ 
+ 	/* Mark the current thread as blocked on the lock: */
+-	ti->task->blocked_on = waiter;
++	task->blocked_on = waiter;
+ }
+ 
+ void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
+-			 struct thread_info *ti)
++			 struct task_struct *task)
+ {
+ 	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
+-	DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
+-	DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
+-	ti->task->blocked_on = NULL;
++	DEBUG_LOCKS_WARN_ON(waiter->task != task);
++	DEBUG_LOCKS_WARN_ON(task->blocked_on != waiter);
++	task->blocked_on = NULL;
+ 
+ 	list_del_init(&waiter->list);
+ 	waiter->task = NULL;
+diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
+index 0799fd3..d06ae3b 100644
+--- a/kernel/locking/mutex-debug.h
++++ b/kernel/locking/mutex-debug.h
+@@ -20,9 +20,9 @@ extern void debug_mutex_wake_waiter(struct mutex *lock,
+ extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
+ extern void debug_mutex_add_waiter(struct mutex *lock,
+ 				   struct mutex_waiter *waiter,
+-				   struct thread_info *ti);
++				   struct task_struct *task);
+ extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
+-				struct thread_info *ti);
++				struct task_struct *task);
+ extern void debug_mutex_unlock(struct mutex *lock);
+ extern void debug_mutex_init(struct mutex *lock, const char *name,
+ 			     struct lock_class_key *key);
+diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
+index 4dd6e4c..df52693 100644
+--- a/kernel/locking/mutex.c
++++ b/kernel/locking/mutex.c
+@@ -135,7 +135,7 @@ void mspin_lock(struct mspin_node **lock, struct mspin_node *node)
+ 		node->locked = 1;
+ 		return;
+ 	}
+-	ACCESS_ONCE(prev->next) = node;
++	ACCESS_ONCE_RW(prev->next) = node;
+ 	smp_wmb();
+ 	/* Wait until the lock holder passes the lock down */
+ 	while (!ACCESS_ONCE(node->locked))
+@@ -156,7 +156,7 @@ static void mspin_unlock(struct mspin_node **lock, struct mspin_node *node)
+ 		while (!(next = ACCESS_ONCE(node->next)))
+ 			arch_mutex_cpu_relax();
+ 	}
+-	ACCESS_ONCE(next->locked) = 1;
++	ACCESS_ONCE_RW(next->locked) = 1;
+ 	smp_wmb();
+ }
+ 
+@@ -520,7 +520,7 @@ slowpath:
+ 		goto skip_wait;
+ 
+ 	debug_mutex_lock_common(lock, &waiter);
+-	debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
++	debug_mutex_add_waiter(lock, &waiter, task);
+ 
+ 	/* add waiting tasks to the end of the waitqueue (FIFO): */
+ 	list_add_tail(&waiter.list, &lock->wait_list);
+@@ -564,7 +564,7 @@ slowpath:
+ 		schedule_preempt_disabled();
+ 		spin_lock_mutex(&lock->wait_lock, flags);
+ 	}
+-	mutex_remove_waiter(lock, &waiter, current_thread_info());
++	mutex_remove_waiter(lock, &waiter, task);
+ 	/* set it to 0 if there are no waiters left: */
+ 	if (likely(list_empty(&lock->wait_list)))
+ 		atomic_set(&lock->count, 0);
+@@ -601,7 +601,7 @@ skip_wait:
+ 	return 0;
+ 
+ err:
+-	mutex_remove_waiter(lock, &waiter, task_thread_info(task));
++	mutex_remove_waiter(lock, &waiter, task);
+ 	spin_unlock_mutex(&lock->wait_lock, flags);
+ 	debug_mutex_free_waiter(&waiter);
+ 	mutex_release(&lock->dep_map, 1, ip);
+diff --git a/kernel/locking/rtmutex-tester.c b/kernel/locking/rtmutex-tester.c
+index 1d96dd0..994ff19 100644
+--- a/kernel/locking/rtmutex-tester.c
++++ b/kernel/locking/rtmutex-tester.c
+@@ -22,7 +22,7 @@
+ #define MAX_RT_TEST_MUTEXES	8
+ 
+ static spinlock_t rttest_lock;
+-static atomic_t rttest_event;
++static atomic_unchecked_t rttest_event;
+ 
+ struct test_thread_data {
+ 	int			opcode;
+@@ -63,7 +63,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
+ 
+ 	case RTTEST_LOCKCONT:
+ 		td->mutexes[td->opdata] = 1;
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		return 0;
+ 
+ 	case RTTEST_RESET:
+@@ -76,7 +76,7 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
+ 		return 0;
+ 
+ 	case RTTEST_RESETEVENT:
+-		atomic_set(&rttest_event, 0);
++		atomic_set_unchecked(&rttest_event, 0);
+ 		return 0;
+ 
+ 	default:
+@@ -93,9 +93,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
+ 			return ret;
+ 
+ 		td->mutexes[id] = 1;
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		rt_mutex_lock(&mutexes[id]);
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		td->mutexes[id] = 4;
+ 		return 0;
+ 
+@@ -106,9 +106,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
+ 			return ret;
+ 
+ 		td->mutexes[id] = 1;
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		td->mutexes[id] = ret ? 0 : 4;
+ 		return ret ? -EINTR : 0;
+ 
+@@ -117,9 +117,9 @@ static int handle_op(struct test_thread_data *td, int lockwakeup)
+ 		if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
+ 			return ret;
+ 
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		rt_mutex_unlock(&mutexes[id]);
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		td->mutexes[id] = 0;
+ 		return 0;
+ 
+@@ -166,7 +166,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
+ 			break;
+ 
+ 		td->mutexes[dat] = 2;
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		break;
+ 
+ 	default:
+@@ -186,7 +186,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
+ 			return;
+ 
+ 		td->mutexes[dat] = 3;
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		break;
+ 
+ 	case RTTEST_LOCKNOWAIT:
+@@ -198,7 +198,7 @@ void schedule_rt_mutex_test(struct rt_mutex *mutex)
+ 			return;
+ 
+ 		td->mutexes[dat] = 1;
+-		td->event = atomic_add_return(1, &rttest_event);
++		td->event = atomic_add_return_unchecked(1, &rttest_event);
+ 		return;
+ 
+ 	default:
+diff --git a/kernel/module.c b/kernel/module.c
+index 1d679a6..acc7443 100644
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -61,6 +61,7 @@
+ #include <linux/pfn.h>
+ #include <linux/bsearch.h>
+ #include <linux/fips.h>
++#include <linux/grsecurity.h>
+ #include <uapi/linux/module.h>
+ #include "module-internal.h"
+ 
+@@ -157,7 +158,8 @@ static BLOCKING_NOTIFIER_HEAD(module_notify_list);
+ 
+ /* Bounds of module allocation, for speeding __module_address.
+  * Protected by module_mutex. */
+-static unsigned long module_addr_min = -1UL, module_addr_max = 0;
++static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0;
++static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0;
+ 
+ int register_module_notifier(struct notifier_block * nb)
+ {
+@@ -324,7 +326,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
+ 		return true;
+ 
+ 	list_for_each_entry_rcu(mod, &modules, list) {
+-		struct symsearch arr[] = {
++		struct symsearch modarr[] = {
+ 			{ mod->syms, mod->syms + mod->num_syms, mod->crcs,
+ 			  NOT_GPL_ONLY, false },
+ 			{ mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms,
+@@ -349,7 +351,7 @@ bool each_symbol_section(bool (*fn)(const struct symsearch *arr,
+ 		if (mod->state == MODULE_STATE_UNFORMED)
+ 			continue;
+ 
+-		if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data))
++		if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data))
+ 			return true;
+ 	}
+ 	return false;
+@@ -489,7 +491,7 @@ static int percpu_modalloc(struct module *mod, struct load_info *info)
+ 	if (!pcpusec->sh_size)
+ 		return 0;
+ 
+-	if (align > PAGE_SIZE) {
++	if (align-1 >= PAGE_SIZE) {
+ 		pr_warn("%s: per-cpu alignment %li > %li\n",
+ 			mod->name, align, PAGE_SIZE);
+ 		align = PAGE_SIZE;
+@@ -1059,7 +1061,7 @@ struct module_attribute module_uevent =
+ static ssize_t show_coresize(struct module_attribute *mattr,
+ 			     struct module_kobject *mk, char *buffer)
+ {
+-	return sprintf(buffer, "%u\n", mk->mod->core_size);
++	return sprintf(buffer, "%u\n", mk->mod->core_size_rx + mk->mod->core_size_rw);
+ }
+ 
+ static struct module_attribute modinfo_coresize =
+@@ -1068,7 +1070,7 @@ static struct module_attribute modinfo_coresize =
+ static ssize_t show_initsize(struct module_attribute *mattr,
+ 			     struct module_kobject *mk, char *buffer)
+ {
+-	return sprintf(buffer, "%u\n", mk->mod->init_size);
++	return sprintf(buffer, "%u\n", mk->mod->init_size_rx +  mk->mod->init_size_rw);
+ }
+ 
+ static struct module_attribute modinfo_initsize =
+@@ -1160,12 +1162,29 @@ static int check_version(Elf_Shdr *sechdrs,
+ 		goto bad_version;
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
++	/*
++	 * avoid potentially printing jibberish on attempted load
++	 * of a module randomized with a different seed
++	 */
++	pr_warn("no symbol version for %s\n", symname);
++#else
+ 	pr_warn("%s: no symbol version for %s\n", mod->name, symname);
++#endif
+ 	return 0;
+ 
+ bad_version:
++#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
++	/*
++	 * avoid potentially printing jibberish on attempted load
++	 * of a module randomized with a different seed
++	 */
++	printk("attempted module disagrees about version of symbol %s\n",
++	       symname);
++#else
+ 	printk("%s: disagrees about version of symbol %s\n",
+ 	       mod->name, symname);
++#endif
+ 	return 0;
+ }
+ 
+@@ -1281,7 +1300,7 @@ resolve_symbol_wait(struct module *mod,
+  */
+ #ifdef CONFIG_SYSFS
+ 
+-#ifdef CONFIG_KALLSYMS
++#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM)
+ static inline bool sect_empty(const Elf_Shdr *sect)
+ {
+ 	return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
+@@ -1421,7 +1440,7 @@ static void add_notes_attrs(struct module *mod, const struct load_info *info)
+ {
+ 	unsigned int notes, loaded, i;
+ 	struct module_notes_attrs *notes_attrs;
+-	struct bin_attribute *nattr;
++	bin_attribute_no_const *nattr;
+ 
+ 	/* failed to create section attributes, so can't create notes */
+ 	if (!mod->sect_attrs)
+@@ -1533,7 +1552,7 @@ static void del_usage_links(struct module *mod)
+ static int module_add_modinfo_attrs(struct module *mod)
+ {
+ 	struct module_attribute *attr;
+-	struct module_attribute *temp_attr;
++	module_attribute_no_const *temp_attr;
+ 	int error = 0;
+ 	int i;
+ 
+@@ -1754,21 +1773,21 @@ static void set_section_ro_nx(void *base,
+ 
+ static void unset_module_core_ro_nx(struct module *mod)
+ {
+-	set_page_attributes(mod->module_core + mod->core_text_size,
+-		mod->module_core + mod->core_size,
++	set_page_attributes(mod->module_core_rw,
++		mod->module_core_rw + mod->core_size_rw,
+ 		set_memory_x);
+-	set_page_attributes(mod->module_core,
+-		mod->module_core + mod->core_ro_size,
++	set_page_attributes(mod->module_core_rx,
++		mod->module_core_rx + mod->core_size_rx,
+ 		set_memory_rw);
+ }
+ 
+ static void unset_module_init_ro_nx(struct module *mod)
+ {
+-	set_page_attributes(mod->module_init + mod->init_text_size,
+-		mod->module_init + mod->init_size,
++	set_page_attributes(mod->module_init_rw,
++		mod->module_init_rw + mod->init_size_rw,
+ 		set_memory_x);
+-	set_page_attributes(mod->module_init,
+-		mod->module_init + mod->init_ro_size,
++	set_page_attributes(mod->module_init_rx,
++		mod->module_init_rx + mod->init_size_rx,
+ 		set_memory_rw);
+ }
+ 
+@@ -1781,14 +1800,14 @@ void set_all_modules_text_rw(void)
+ 	list_for_each_entry_rcu(mod, &modules, list) {
+ 		if (mod->state == MODULE_STATE_UNFORMED)
+ 			continue;
+-		if ((mod->module_core) && (mod->core_text_size)) {
+-			set_page_attributes(mod->module_core,
+-						mod->module_core + mod->core_text_size,
++		if ((mod->module_core_rx) && (mod->core_size_rx)) {
++			set_page_attributes(mod->module_core_rx,
++						mod->module_core_rx + mod->core_size_rx,
+ 						set_memory_rw);
+ 		}
+-		if ((mod->module_init) && (mod->init_text_size)) {
+-			set_page_attributes(mod->module_init,
+-						mod->module_init + mod->init_text_size,
++		if ((mod->module_init_rx) && (mod->init_size_rx)) {
++			set_page_attributes(mod->module_init_rx,
++						mod->module_init_rx + mod->init_size_rx,
+ 						set_memory_rw);
+ 		}
+ 	}
+@@ -1804,14 +1823,14 @@ void set_all_modules_text_ro(void)
+ 	list_for_each_entry_rcu(mod, &modules, list) {
+ 		if (mod->state == MODULE_STATE_UNFORMED)
+ 			continue;
+-		if ((mod->module_core) && (mod->core_text_size)) {
+-			set_page_attributes(mod->module_core,
+-						mod->module_core + mod->core_text_size,
++		if ((mod->module_core_rx) && (mod->core_size_rx)) {
++			set_page_attributes(mod->module_core_rx,
++						mod->module_core_rx + mod->core_size_rx,
+ 						set_memory_ro);
+ 		}
+-		if ((mod->module_init) && (mod->init_text_size)) {
+-			set_page_attributes(mod->module_init,
+-						mod->module_init + mod->init_text_size,
++		if ((mod->module_init_rx) && (mod->init_size_rx)) {
++			set_page_attributes(mod->module_init_rx,
++						mod->module_init_rx + mod->init_size_rx,
+ 						set_memory_ro);
+ 		}
+ 	}
+@@ -1864,16 +1883,19 @@ static void free_module(struct module *mod)
+ 
+ 	/* This may be NULL, but that's OK */
+ 	unset_module_init_ro_nx(mod);
+-	module_free(mod, mod->module_init);
++	module_free(mod, mod->module_init_rw);
++	module_free_exec(mod, mod->module_init_rx);
+ 	kfree(mod->args);
+ 	percpu_modfree(mod);
+ 
+ 	/* Free lock-classes: */
+-	lockdep_free_key_range(mod->module_core, mod->core_size);
++	lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx);
++	lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw);
+ 
+ 	/* Finally, free the core (containing the module structure) */
+ 	unset_module_core_ro_nx(mod);
+-	module_free(mod, mod->module_core);
++	module_free_exec(mod, mod->module_core_rx);
++	module_free(mod, mod->module_core_rw);
+ 
+ #ifdef CONFIG_MPU
+ 	update_protections(current->mm);
+@@ -1942,9 +1964,31 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
+ 	int ret = 0;
+ 	const struct kernel_symbol *ksym;
+ 
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++	int is_fs_load = 0;
++	int register_filesystem_found = 0;
++	char *p;
++
++	p = strstr(mod->args, "grsec_modharden_fs");
++	if (p) {
++		char *endptr = p + sizeof("grsec_modharden_fs") - 1;
++		/* copy \0 as well */
++		memmove(p, endptr, strlen(mod->args) - (unsigned int)(endptr - mod->args) + 1);
++		is_fs_load = 1;
++	}
++#endif
++
+ 	for (i = 1; i < symsec->sh_size / sizeof(Elf_Sym); i++) {
+ 		const char *name = info->strtab + sym[i].st_name;
+ 
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++		/* it's a real shame this will never get ripped and copied
++		   upstream! ;(
++		*/
++		if (is_fs_load && !strcmp(name, "register_filesystem"))
++			register_filesystem_found = 1;
++#endif
++
+ 		switch (sym[i].st_shndx) {
+ 		case SHN_COMMON:
+ 			/* We compiled with -fno-common.  These are not
+@@ -1965,7 +2009,9 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
+ 			ksym = resolve_symbol_wait(mod, info, name);
+ 			/* Ok if resolved.  */
+ 			if (ksym && !IS_ERR(ksym)) {
++				pax_open_kernel();
+ 				sym[i].st_value = ksym->value;
++				pax_close_kernel();
+ 				break;
+ 			}
+ 
+@@ -1984,11 +2030,20 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
+ 				secbase = (unsigned long)mod_percpu(mod);
+ 			else
+ 				secbase = info->sechdrs[sym[i].st_shndx].sh_addr;
++			pax_open_kernel();
+ 			sym[i].st_value += secbase;
++			pax_close_kernel();
+ 			break;
+ 		}
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++	if (is_fs_load && !register_filesystem_found) {
++		printk(KERN_ALERT "grsec: Denied attempt to load non-fs module %.64s through mount\n", mod->name);
++		ret = -EPERM;
++	}
++#endif
++
+ 	return ret;
+ }
+ 
+@@ -2072,22 +2127,12 @@ static void layout_sections(struct module *mod, struct load_info *info)
+ 			    || s->sh_entsize != ~0UL
+ 			    || strstarts(sname, ".init"))
+ 				continue;
+-			s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
++			if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
++				s->sh_entsize = get_offset(mod, &mod->core_size_rw, s, i);
++			else
++				s->sh_entsize = get_offset(mod, &mod->core_size_rx, s, i);
+ 			pr_debug("\t%s\n", sname);
+ 		}
+-		switch (m) {
+-		case 0: /* executable */
+-			mod->core_size = debug_align(mod->core_size);
+-			mod->core_text_size = mod->core_size;
+-			break;
+-		case 1: /* RO: text and ro-data */
+-			mod->core_size = debug_align(mod->core_size);
+-			mod->core_ro_size = mod->core_size;
+-			break;
+-		case 3: /* whole core */
+-			mod->core_size = debug_align(mod->core_size);
+-			break;
+-		}
+ 	}
+ 
+ 	pr_debug("Init section allocation order:\n");
+@@ -2101,23 +2146,13 @@ static void layout_sections(struct module *mod, struct load_info *info)
+ 			    || s->sh_entsize != ~0UL
+ 			    || !strstarts(sname, ".init"))
+ 				continue;
+-			s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
+-					 | INIT_OFFSET_MASK);
++			if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC))
++				s->sh_entsize = get_offset(mod, &mod->init_size_rw, s, i);
++			else
++				s->sh_entsize = get_offset(mod, &mod->init_size_rx, s, i);
++			s->sh_entsize |= INIT_OFFSET_MASK;
+ 			pr_debug("\t%s\n", sname);
+ 		}
+-		switch (m) {
+-		case 0: /* executable */
+-			mod->init_size = debug_align(mod->init_size);
+-			mod->init_text_size = mod->init_size;
+-			break;
+-		case 1: /* RO: text and ro-data */
+-			mod->init_size = debug_align(mod->init_size);
+-			mod->init_ro_size = mod->init_size;
+-			break;
+-		case 3: /* whole init */
+-			mod->init_size = debug_align(mod->init_size);
+-			break;
+-		}
+ 	}
+ }
+ 
+@@ -2290,7 +2325,7 @@ static void layout_symtab(struct module *mod, struct load_info *info)
+ 
+ 	/* Put symbol section at end of init part of module. */
+ 	symsect->sh_flags |= SHF_ALLOC;
+-	symsect->sh_entsize = get_offset(mod, &mod->init_size, symsect,
++	symsect->sh_entsize = get_offset(mod, &mod->init_size_rx, symsect,
+ 					 info->index.sym) | INIT_OFFSET_MASK;
+ 	pr_debug("\t%s\n", info->secstrings + symsect->sh_name);
+ 
+@@ -2307,13 +2342,13 @@ static void layout_symtab(struct module *mod, struct load_info *info)
+ 	}
+ 
+ 	/* Append room for core symbols at end of core part. */
+-	info->symoffs = ALIGN(mod->core_size, symsect->sh_addralign ?: 1);
+-	info->stroffs = mod->core_size = info->symoffs + ndst * sizeof(Elf_Sym);
+-	mod->core_size += strtab_size;
++	info->symoffs = ALIGN(mod->core_size_rx, symsect->sh_addralign ?: 1);
++	info->stroffs = mod->core_size_rx = info->symoffs + ndst * sizeof(Elf_Sym);
++	mod->core_size_rx += strtab_size;
+ 
+ 	/* Put string table section at end of init part of module. */
+ 	strsect->sh_flags |= SHF_ALLOC;
+-	strsect->sh_entsize = get_offset(mod, &mod->init_size, strsect,
++	strsect->sh_entsize = get_offset(mod, &mod->init_size_rx, strsect,
+ 					 info->index.str) | INIT_OFFSET_MASK;
+ 	pr_debug("\t%s\n", info->secstrings + strsect->sh_name);
+ }
+@@ -2331,12 +2366,14 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
+ 	/* Make sure we get permanent strtab: don't use info->strtab. */
+ 	mod->strtab = (void *)info->sechdrs[info->index.str].sh_addr;
+ 
++	pax_open_kernel();
++
+ 	/* Set types up while we still have access to sections. */
+ 	for (i = 0; i < mod->num_symtab; i++)
+ 		mod->symtab[i].st_info = elf_type(&mod->symtab[i], info);
+ 
+-	mod->core_symtab = dst = mod->module_core + info->symoffs;
+-	mod->core_strtab = s = mod->module_core + info->stroffs;
++	mod->core_symtab = dst = mod->module_core_rx + info->symoffs;
++	mod->core_strtab = s = mod->module_core_rx + info->stroffs;
+ 	src = mod->symtab;
+ 	for (ndst = i = 0; i < mod->num_symtab; i++) {
+ 		if (i == 0 ||
+@@ -2348,6 +2385,8 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
+ 		}
+ 	}
+ 	mod->core_num_syms = ndst;
++
++	pax_close_kernel();
+ }
+ #else
+ static inline void layout_symtab(struct module *mod, struct load_info *info)
+@@ -2381,17 +2420,33 @@ void * __weak module_alloc(unsigned long size)
+ 	return vmalloc_exec(size);
+ }
+ 
+-static void *module_alloc_update_bounds(unsigned long size)
++static void *module_alloc_update_bounds_rw(unsigned long size)
+ {
+ 	void *ret = module_alloc(size);
+ 
+ 	if (ret) {
+ 		mutex_lock(&module_mutex);
+ 		/* Update module bounds. */
+-		if ((unsigned long)ret < module_addr_min)
+-			module_addr_min = (unsigned long)ret;
+-		if ((unsigned long)ret + size > module_addr_max)
+-			module_addr_max = (unsigned long)ret + size;
++		if ((unsigned long)ret < module_addr_min_rw)
++			module_addr_min_rw = (unsigned long)ret;
++		if ((unsigned long)ret + size > module_addr_max_rw)
++			module_addr_max_rw = (unsigned long)ret + size;
++		mutex_unlock(&module_mutex);
++	}
++	return ret;
++}
++
++static void *module_alloc_update_bounds_rx(unsigned long size)
++{
++	void *ret = module_alloc_exec(size);
++
++	if (ret) {
++		mutex_lock(&module_mutex);
++		/* Update module bounds. */
++		if ((unsigned long)ret < module_addr_min_rx)
++			module_addr_min_rx = (unsigned long)ret;
++		if ((unsigned long)ret + size > module_addr_max_rx)
++			module_addr_max_rx = (unsigned long)ret + size;
+ 		mutex_unlock(&module_mutex);
+ 	}
+ 	return ret;
+@@ -2648,7 +2703,15 @@ static struct module *setup_load_info(struct load_info *info, int flags)
+ 	mod = (void *)info->sechdrs[info->index.mod].sh_addr;
+ 
+ 	if (info->index.sym == 0) {
++#ifdef CONFIG_GRKERNSEC_RANDSTRUCT
++		/*
++		 * avoid potentially printing jibberish on attempted load
++		 * of a module randomized with a different seed
++		 */
++		pr_warn("module has no symbols (stripped?)\n");
++#else
+ 		pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
++#endif
+ 		return ERR_PTR(-ENOEXEC);
+ 	}
+ 
+@@ -2664,8 +2727,14 @@ static struct module *setup_load_info(struct load_info *info, int flags)
+ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
+ {
+ 	const char *modmagic = get_modinfo(info, "vermagic");
++	const char *license = get_modinfo(info, "license");
+ 	int err;
+ 
++#ifdef CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR
++	if (!license || !license_is_gpl_compatible(license))
++		return -ENOEXEC;
++#endif
++
+ 	if (flags & MODULE_INIT_IGNORE_VERMAGIC)
+ 		modmagic = NULL;
+ 
+@@ -2690,7 +2759,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
+ 	}
+ 
+ 	/* Set up license info based on the info section */
+-	set_license(mod, get_modinfo(info, "license"));
++	set_license(mod, license);
+ 
+ 	return 0;
+ }
+@@ -2784,7 +2853,7 @@ static int move_module(struct module *mod, struct load_info *info)
+ 	void *ptr;
+ 
+ 	/* Do the allocs. */
+-	ptr = module_alloc_update_bounds(mod->core_size);
++	ptr = module_alloc_update_bounds_rw(mod->core_size_rw);
+ 	/*
+ 	 * The pointer to this block is stored in the module structure
+ 	 * which is inside the block. Just mark it as not being a
+@@ -2794,11 +2863,11 @@ static int move_module(struct module *mod, struct load_info *info)
+ 	if (!ptr)
+ 		return -ENOMEM;
+ 
+-	memset(ptr, 0, mod->core_size);
+-	mod->module_core = ptr;
++	memset(ptr, 0, mod->core_size_rw);
++	mod->module_core_rw = ptr;
+ 
+-	if (mod->init_size) {
+-		ptr = module_alloc_update_bounds(mod->init_size);
++	if (mod->init_size_rw) {
++		ptr = module_alloc_update_bounds_rw(mod->init_size_rw);
+ 		/*
+ 		 * The pointer to this block is stored in the module structure
+ 		 * which is inside the block. This block doesn't need to be
+@@ -2807,13 +2876,45 @@ static int move_module(struct module *mod, struct load_info *info)
+ 		 */
+ 		kmemleak_ignore(ptr);
+ 		if (!ptr) {
+-			module_free(mod, mod->module_core);
++			module_free(mod, mod->module_core_rw);
+ 			return -ENOMEM;
+ 		}
+-		memset(ptr, 0, mod->init_size);
+-		mod->module_init = ptr;
++		memset(ptr, 0, mod->init_size_rw);
++		mod->module_init_rw = ptr;
+ 	} else
+-		mod->module_init = NULL;
++		mod->module_init_rw = NULL;
++
++	ptr = module_alloc_update_bounds_rx(mod->core_size_rx);
++	kmemleak_not_leak(ptr);
++	if (!ptr) {
++		if (mod->module_init_rw)
++			module_free(mod, mod->module_init_rw);
++		module_free(mod, mod->module_core_rw);
++		return -ENOMEM;
++	}
++
++	pax_open_kernel();
++	memset(ptr, 0, mod->core_size_rx);
++	pax_close_kernel();
++	mod->module_core_rx = ptr;
++
++	if (mod->init_size_rx) {
++		ptr = module_alloc_update_bounds_rx(mod->init_size_rx);
++		kmemleak_ignore(ptr);
++		if (!ptr && mod->init_size_rx) {
++			module_free_exec(mod, mod->module_core_rx);
++			if (mod->module_init_rw)
++				module_free(mod, mod->module_init_rw);
++			module_free(mod, mod->module_core_rw);
++			return -ENOMEM;
++		}
++
++		pax_open_kernel();
++		memset(ptr, 0, mod->init_size_rx);
++		pax_close_kernel();
++		mod->module_init_rx = ptr;
++	} else
++		mod->module_init_rx = NULL;
+ 
+ 	/* Transfer each section which specifies SHF_ALLOC */
+ 	pr_debug("final section addresses:\n");
+@@ -2824,16 +2925,45 @@ static int move_module(struct module *mod, struct load_info *info)
+ 		if (!(shdr->sh_flags & SHF_ALLOC))
+ 			continue;
+ 
+-		if (shdr->sh_entsize & INIT_OFFSET_MASK)
+-			dest = mod->module_init
+-				+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
+-		else
+-			dest = mod->module_core + shdr->sh_entsize;
++		if (shdr->sh_entsize & INIT_OFFSET_MASK) {
++			if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
++				dest = mod->module_init_rw
++					+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
++			else
++				dest = mod->module_init_rx
++					+ (shdr->sh_entsize & ~INIT_OFFSET_MASK);
++		} else {
++			if ((shdr->sh_flags & SHF_WRITE) || !(shdr->sh_flags & SHF_ALLOC))
++				dest = mod->module_core_rw + shdr->sh_entsize;
++			else
++				dest = mod->module_core_rx + shdr->sh_entsize;
++		}
++
++		if (shdr->sh_type != SHT_NOBITS) {
++
++#ifdef CONFIG_PAX_KERNEXEC
++#ifdef CONFIG_X86_64
++			if ((shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_EXECINSTR))
++				set_memory_x((unsigned long)dest, (shdr->sh_size + PAGE_SIZE) >> PAGE_SHIFT);
++#endif
++			if (!(shdr->sh_flags & SHF_WRITE) && (shdr->sh_flags & SHF_ALLOC)) {
++				pax_open_kernel();
++				memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
++				pax_close_kernel();
++			} else
++#endif
+ 
+-		if (shdr->sh_type != SHT_NOBITS)
+ 			memcpy(dest, (void *)shdr->sh_addr, shdr->sh_size);
++		}
+ 		/* Update sh_addr to point to copy in image. */
+-		shdr->sh_addr = (unsigned long)dest;
++
++#ifdef CONFIG_PAX_KERNEXEC
++		if (shdr->sh_flags & SHF_EXECINSTR)
++			shdr->sh_addr = ktva_ktla((unsigned long)dest);
++		else
++#endif
++
++			shdr->sh_addr = (unsigned long)dest;
+ 		pr_debug("\t0x%lx %s\n",
+ 			 (long)shdr->sh_addr, info->secstrings + shdr->sh_name);
+ 	}
+@@ -2890,12 +3020,12 @@ static void flush_module_icache(const struct module *mod)
+ 	 * Do it before processing of module parameters, so the module
+ 	 * can provide parameter accessor functions of its own.
+ 	 */
+-	if (mod->module_init)
+-		flush_icache_range((unsigned long)mod->module_init,
+-				   (unsigned long)mod->module_init
+-				   + mod->init_size);
+-	flush_icache_range((unsigned long)mod->module_core,
+-			   (unsigned long)mod->module_core + mod->core_size);
++	if (mod->module_init_rx)
++		flush_icache_range((unsigned long)mod->module_init_rx,
++				   (unsigned long)mod->module_init_rx
++				   + mod->init_size_rx);
++	flush_icache_range((unsigned long)mod->module_core_rx,
++			   (unsigned long)mod->module_core_rx + mod->core_size_rx);
+ 
+ 	set_fs(old_fs);
+ }
+@@ -2952,8 +3082,10 @@ static struct module *layout_and_allocate(struct load_info *info, int flags)
+ static void module_deallocate(struct module *mod, struct load_info *info)
+ {
+ 	percpu_modfree(mod);
+-	module_free(mod, mod->module_init);
+-	module_free(mod, mod->module_core);
++	module_free_exec(mod, mod->module_init_rx);
++	module_free_exec(mod, mod->module_core_rx);
++	module_free(mod, mod->module_init_rw);
++	module_free(mod, mod->module_core_rw);
+ }
+ 
+ int __weak module_finalize(const Elf_Ehdr *hdr,
+@@ -2966,7 +3098,9 @@ int __weak module_finalize(const Elf_Ehdr *hdr,
+ static int post_relocation(struct module *mod, const struct load_info *info)
+ {
+ 	/* Sort exception table now relocations are done. */
++	pax_open_kernel();
+ 	sort_extable(mod->extable, mod->extable + mod->num_exentries);
++	pax_close_kernel();
+ 
+ 	/* Copy relocated percpu area over. */
+ 	percpu_modcopy(mod, (void *)info->sechdrs[info->index.pcpu].sh_addr,
+@@ -3020,16 +3154,16 @@ static int do_init_module(struct module *mod)
+ 			MODULE_STATE_COMING, mod);
+ 
+ 	/* Set RO and NX regions for core */
+-	set_section_ro_nx(mod->module_core,
+-				mod->core_text_size,
+-				mod->core_ro_size,
+-				mod->core_size);
++	set_section_ro_nx(mod->module_core_rx,
++				mod->core_size_rx,
++				mod->core_size_rx,
++				mod->core_size_rx);
+ 
+ 	/* Set RO and NX regions for init */
+-	set_section_ro_nx(mod->module_init,
+-				mod->init_text_size,
+-				mod->init_ro_size,
+-				mod->init_size);
++	set_section_ro_nx(mod->module_init_rx,
++				mod->init_size_rx,
++				mod->init_size_rx,
++				mod->init_size_rx);
+ 
+ 	do_mod_ctors(mod);
+ 	/* Start the module */
+@@ -3090,11 +3224,12 @@ static int do_init_module(struct module *mod)
+ 	mod->strtab = mod->core_strtab;
+ #endif
+ 	unset_module_init_ro_nx(mod);
+-	module_free(mod, mod->module_init);
+-	mod->module_init = NULL;
+-	mod->init_size = 0;
+-	mod->init_ro_size = 0;
+-	mod->init_text_size = 0;
++	module_free(mod, mod->module_init_rw);
++	module_free_exec(mod, mod->module_init_rx);
++	mod->module_init_rw = NULL;
++	mod->module_init_rx = NULL;
++	mod->init_size_rw = 0;
++	mod->init_size_rx = 0;
+ 	mutex_unlock(&module_mutex);
+ 	wake_up_all(&module_wq);
+ 
+@@ -3237,9 +3372,38 @@ static int load_module(struct load_info *info, const char __user *uargs,
+ 	if (err)
+ 		goto free_unload;
+ 
++	/* Now copy in args */
++	mod->args = strndup_user(uargs, ~0UL >> 1);
++	if (IS_ERR(mod->args)) {
++		err = PTR_ERR(mod->args);
++		goto free_unload;
++	}
++
+ 	/* Set up MODINFO_ATTR fields */
+ 	setup_modinfo(mod, info);
+ 
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++	{
++		char *p, *p2;
++
++		if (strstr(mod->args, "grsec_modharden_netdev")) {
++			printk(KERN_ALERT "grsec: denied auto-loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%.64s instead.", mod->name);
++			err = -EPERM;
++			goto free_modinfo;
++		} else if ((p = strstr(mod->args, "grsec_modharden_normal"))) {
++			p += sizeof("grsec_modharden_normal") - 1;
++			p2 = strstr(p, "_");
++			if (p2) {
++				*p2 = '\0';
++				printk(KERN_ALERT "grsec: denied kernel module auto-load of %.64s by uid %.9s\n", mod->name, p);
++				*p2 = '_';
++			}
++			err = -EPERM;
++			goto free_modinfo;
++		}
++	}
++#endif
++
+ 	/* Fix up syms, so that st_value is a pointer to location. */
+ 	err = simplify_symbols(mod, info);
+ 	if (err < 0)
+@@ -3255,13 +3419,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
+ 
+ 	flush_module_icache(mod);
+ 
+-	/* Now copy in args */
+-	mod->args = strndup_user(uargs, ~0UL >> 1);
+-	if (IS_ERR(mod->args)) {
+-		err = PTR_ERR(mod->args);
+-		goto free_arch_cleanup;
+-	}
+-
+ 	dynamic_debug_setup(info->debug, info->num_debug);
+ 
+ 	/* Ftrace init must be called in the MODULE_STATE_UNFORMED state */
+@@ -3299,11 +3456,10 @@ static int load_module(struct load_info *info, const char __user *uargs,
+  ddebug_cleanup:
+ 	dynamic_debug_remove(info->debug);
+ 	synchronize_sched();
+-	kfree(mod->args);
+- free_arch_cleanup:
+ 	module_arch_cleanup(mod);
+  free_modinfo:
+ 	free_modinfo(mod);
++	kfree(mod->args);
+  free_unload:
+ 	module_unload_free(mod);
+  unlink_mod:
+@@ -3386,10 +3542,16 @@ static const char *get_ksymbol(struct module *mod,
+ 	unsigned long nextval;
+ 
+ 	/* At worse, next value is at end of module */
+-	if (within_module_init(addr, mod))
+-		nextval = (unsigned long)mod->module_init+mod->init_text_size;
++	if (within_module_init_rx(addr, mod))
++		nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx;
++	else if (within_module_init_rw(addr, mod))
++		nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw;
++	else if (within_module_core_rx(addr, mod))
++		nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx;
++	else if (within_module_core_rw(addr, mod))
++		nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw;
+ 	else
+-		nextval = (unsigned long)mod->module_core+mod->core_text_size;
++		return NULL;
+ 
+ 	/* Scan for closest preceding symbol, and next symbol. (ELF
+ 	   starts real symbols at 1). */
+@@ -3640,7 +3802,7 @@ static int m_show(struct seq_file *m, void *p)
+ 		return 0;
+ 
+ 	seq_printf(m, "%s %u",
+-		   mod->name, mod->init_size + mod->core_size);
++		   mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw);
+ 	print_unload_info(m, mod);
+ 
+ 	/* Informative for users. */
+@@ -3649,7 +3811,7 @@ static int m_show(struct seq_file *m, void *p)
+ 		   mod->state == MODULE_STATE_COMING ? "Loading":
+ 		   "Live");
+ 	/* Used by oprofile and other similar tools. */
+-	seq_printf(m, " 0x%pK", mod->module_core);
++	seq_printf(m, " 0x%pK 0x%pK", mod->module_core_rx, mod->module_core_rw);
+ 
+ 	/* Taints info */
+ 	if (mod->taints)
+@@ -3685,7 +3847,17 @@ static const struct file_operations proc_modules_operations = {
+ 
+ static int __init proc_modules_init(void)
+ {
++#ifndef CONFIG_GRKERNSEC_HIDESYM
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	proc_create("modules", S_IRUSR | S_IRGRP, NULL, &proc_modules_operations);
++#else
+ 	proc_create("modules", 0, NULL, &proc_modules_operations);
++#endif
++#else
++	proc_create("modules", S_IRUSR, NULL, &proc_modules_operations);
++#endif
+ 	return 0;
+ }
+ module_init(proc_modules_init);
+@@ -3746,14 +3918,14 @@ struct module *__module_address(unsigned long addr)
+ {
+ 	struct module *mod;
+ 
+-	if (addr < module_addr_min || addr > module_addr_max)
++	if ((addr < module_addr_min_rx || addr > module_addr_max_rx) &&
++	    (addr < module_addr_min_rw || addr > module_addr_max_rw))
+ 		return NULL;
+ 
+ 	list_for_each_entry_rcu(mod, &modules, list) {
+ 		if (mod->state == MODULE_STATE_UNFORMED)
+ 			continue;
+-		if (within_module_core(addr, mod)
+-		    || within_module_init(addr, mod))
++		if (within_module_init(addr, mod) || within_module_core(addr, mod))
+ 			return mod;
+ 	}
+ 	return NULL;
+@@ -3788,11 +3960,20 @@ bool is_module_text_address(unsigned long addr)
+  */
+ struct module *__module_text_address(unsigned long addr)
+ {
+-	struct module *mod = __module_address(addr);
++	struct module *mod;
++
++#ifdef CONFIG_X86_32
++	addr = ktla_ktva(addr);
++#endif
++
++	if (addr < module_addr_min_rx || addr > module_addr_max_rx)
++		return NULL;
++
++	mod = __module_address(addr);
++
+ 	if (mod) {
+ 		/* Make sure it's within the text section. */
+-		if (!within(addr, mod->module_init, mod->init_text_size)
+-		    && !within(addr, mod->module_core, mod->core_text_size))
++		if (!within_module_init_rx(addr, mod) && !within_module_core_rx(addr, mod))
+ 			mod = NULL;
+ 	}
+ 	return mod;
+diff --git a/kernel/notifier.c b/kernel/notifier.c
+index 2d5cc4c..d9ea600 100644
+--- a/kernel/notifier.c
++++ b/kernel/notifier.c
+@@ -5,6 +5,7 @@
+ #include <linux/rcupdate.h>
+ #include <linux/vmalloc.h>
+ #include <linux/reboot.h>
++#include <linux/mm.h>
+ 
+ /*
+  *	Notifier list for kernel code which wants to be called
+@@ -24,10 +25,12 @@ static int notifier_chain_register(struct notifier_block **nl,
+ 	while ((*nl) != NULL) {
+ 		if (n->priority > (*nl)->priority)
+ 			break;
+-		nl = &((*nl)->next);
++		nl = (struct notifier_block **)&((*nl)->next);
+ 	}
+-	n->next = *nl;
++	pax_open_kernel();
++	*(const void **)&n->next = *nl;
+ 	rcu_assign_pointer(*nl, n);
++	pax_close_kernel();
+ 	return 0;
+ }
+ 
+@@ -39,10 +42,12 @@ static int notifier_chain_cond_register(struct notifier_block **nl,
+ 			return 0;
+ 		if (n->priority > (*nl)->priority)
+ 			break;
+-		nl = &((*nl)->next);
++		nl = (struct notifier_block **)&((*nl)->next);
+ 	}
+-	n->next = *nl;
++	pax_open_kernel();
++	*(const void **)&n->next = *nl;
+ 	rcu_assign_pointer(*nl, n);
++	pax_close_kernel();
+ 	return 0;
+ }
+ 
+@@ -51,10 +56,12 @@ static int notifier_chain_unregister(struct notifier_block **nl,
+ {
+ 	while ((*nl) != NULL) {
+ 		if ((*nl) == n) {
++			pax_open_kernel();
+ 			rcu_assign_pointer(*nl, n->next);
++			pax_close_kernel();
+ 			return 0;
+ 		}
+-		nl = &((*nl)->next);
++		nl = (struct notifier_block **)&((*nl)->next);
+ 	}
+ 	return -ENOENT;
+ }
+diff --git a/kernel/padata.c b/kernel/padata.c
+index 161402f..598814c 100644
+--- a/kernel/padata.c
++++ b/kernel/padata.c
+@@ -54,7 +54,7 @@ static int padata_cpu_hash(struct parallel_data *pd)
+ 	 * seq_nr mod. number of cpus in use.
+ 	 */
+ 
+-	seq_nr = atomic_inc_return(&pd->seq_nr);
++	seq_nr = atomic_inc_return_unchecked(&pd->seq_nr);
+ 	cpu_index = seq_nr % cpumask_weight(pd->cpumask.pcpu);
+ 
+ 	return padata_index_to_cpu(pd, cpu_index);
+@@ -428,7 +428,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
+ 	padata_init_pqueues(pd);
+ 	padata_init_squeues(pd);
+ 	setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd);
+-	atomic_set(&pd->seq_nr, -1);
++	atomic_set_unchecked(&pd->seq_nr, -1);
+ 	atomic_set(&pd->reorder_objects, 0);
+ 	atomic_set(&pd->refcnt, 0);
+ 	pd->pinst = pinst;
+diff --git a/kernel/panic.c b/kernel/panic.c
+index 6d63003..486a109 100644
+--- a/kernel/panic.c
++++ b/kernel/panic.c
+@@ -52,7 +52,7 @@ EXPORT_SYMBOL(panic_blink);
+ /*
+  * Stop ourself in panic -- architecture code may override this
+  */
+-void __weak panic_smp_self_stop(void)
++void __weak __noreturn panic_smp_self_stop(void)
+ {
+ 	while (1)
+ 		cpu_relax();
+@@ -407,7 +407,7 @@ static void warn_slowpath_common(const char *file, int line, void *caller,
+ 	disable_trace_on_warning();
+ 
+ 	pr_warn("------------[ cut here ]------------\n");
+-	pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS()\n",
++	pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pA()\n",
+ 		raw_smp_processor_id(), current->pid, file, line, caller);
+ 
+ 	if (args)
+@@ -461,7 +461,8 @@ EXPORT_SYMBOL(warn_slowpath_null);
+  */
+ void __stack_chk_fail(void)
+ {
+-	panic("stack-protector: Kernel stack is corrupted in: %p\n",
++	dump_stack();
++	panic("stack-protector: Kernel stack is corrupted in: %pA\n",
+ 		__builtin_return_address(0));
+ }
+ EXPORT_SYMBOL(__stack_chk_fail);
+diff --git a/kernel/pid.c b/kernel/pid.c
+index 82430c8..53d7793 100644
+--- a/kernel/pid.c
++++ b/kernel/pid.c
+@@ -33,6 +33,7 @@
+ #include <linux/rculist.h>
+ #include <linux/bootmem.h>
+ #include <linux/hash.h>
++#include <linux/security.h>
+ #include <linux/pid_namespace.h>
+ #include <linux/init_task.h>
+ #include <linux/syscalls.h>
+@@ -47,7 +48,7 @@ struct pid init_struct_pid = INIT_STRUCT_PID;
+ 
+ int pid_max = PID_MAX_DEFAULT;
+ 
+-#define RESERVED_PIDS		300
++#define RESERVED_PIDS		500
+ 
+ int pid_max_min = RESERVED_PIDS + 1;
+ int pid_max_max = PID_MAX_LIMIT;
+@@ -447,10 +448,18 @@ EXPORT_SYMBOL(pid_task);
+  */
+ struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
+ {
++	struct task_struct *task;
++
+ 	rcu_lockdep_assert(rcu_read_lock_held(),
+ 			   "find_task_by_pid_ns() needs rcu_read_lock()"
+ 			   " protection");
+-	return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
++
++	task = pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
++
++	if (gr_pid_is_chrooted(task))
++		return NULL;
++
++	return task;
+ }
+ 
+ struct task_struct *find_task_by_vpid(pid_t vnr)
+@@ -458,6 +467,14 @@ struct task_struct *find_task_by_vpid(pid_t vnr)
+ 	return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
+ }
+ 
++struct task_struct *find_task_by_vpid_unrestricted(pid_t vnr)
++{
++	rcu_lockdep_assert(rcu_read_lock_held(),
++			   "find_task_by_pid_ns() needs rcu_read_lock()"
++			   " protection");
++	return pid_task(find_pid_ns(vnr, task_active_pid_ns(current)), PIDTYPE_PID);
++}
++
+ struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
+ {
+ 	struct pid *pid;
+diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
+index db95d8e..a0ca23f 100644
+--- a/kernel/pid_namespace.c
++++ b/kernel/pid_namespace.c
+@@ -253,7 +253,7 @@ static int pid_ns_ctl_handler(struct ctl_table *table, int write,
+ 		void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+ 	struct pid_namespace *pid_ns = task_active_pid_ns(current);
+-	struct ctl_table tmp = *table;
++	ctl_table_no_const tmp = *table;
+ 
+ 	if (write && !ns_capable(pid_ns->user_ns, CAP_SYS_ADMIN))
+ 		return -EPERM;
+diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
+index 3b89464..5e38379 100644
+--- a/kernel/posix-cpu-timers.c
++++ b/kernel/posix-cpu-timers.c
+@@ -1464,14 +1464,14 @@ struct k_clock clock_posix_cpu = {
+ 
+ static __init int init_posix_cpu_timers(void)
+ {
+-	struct k_clock process = {
++	static struct k_clock process = {
+ 		.clock_getres	= process_cpu_clock_getres,
+ 		.clock_get	= process_cpu_clock_get,
+ 		.timer_create	= process_cpu_timer_create,
+ 		.nsleep		= process_cpu_nsleep,
+ 		.nsleep_restart	= process_cpu_nsleep_restart,
+ 	};
+-	struct k_clock thread = {
++	static struct k_clock thread = {
+ 		.clock_getres	= thread_cpu_clock_getres,
+ 		.clock_get	= thread_cpu_clock_get,
+ 		.timer_create	= thread_cpu_timer_create,
+diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
+index 77e6b83..fc021bd 100644
+--- a/kernel/posix-timers.c
++++ b/kernel/posix-timers.c
+@@ -43,6 +43,7 @@
+ #include <linux/hash.h>
+ #include <linux/posix-clock.h>
+ #include <linux/posix-timers.h>
++#include <linux/grsecurity.h>
+ #include <linux/syscalls.h>
+ #include <linux/wait.h>
+ #include <linux/workqueue.h>
+@@ -122,7 +123,7 @@ static DEFINE_SPINLOCK(hash_lock);
+  *	    which we beg off on and pass to do_sys_settimeofday().
+  */
+ 
+-static struct k_clock posix_clocks[MAX_CLOCKS];
++static struct k_clock *posix_clocks[MAX_CLOCKS];
+ 
+ /*
+  * These ones are defined below.
+@@ -275,7 +276,7 @@ static int posix_get_tai(clockid_t which_clock, struct timespec *tp)
+  */
+ static __init int init_posix_timers(void)
+ {
+-	struct k_clock clock_realtime = {
++	static struct k_clock clock_realtime = {
+ 		.clock_getres	= hrtimer_get_res,
+ 		.clock_get	= posix_clock_realtime_get,
+ 		.clock_set	= posix_clock_realtime_set,
+@@ -287,7 +288,7 @@ static __init int init_posix_timers(void)
+ 		.timer_get	= common_timer_get,
+ 		.timer_del	= common_timer_del,
+ 	};
+-	struct k_clock clock_monotonic = {
++	static struct k_clock clock_monotonic = {
+ 		.clock_getres	= hrtimer_get_res,
+ 		.clock_get	= posix_ktime_get_ts,
+ 		.nsleep		= common_nsleep,
+@@ -297,19 +298,19 @@ static __init int init_posix_timers(void)
+ 		.timer_get	= common_timer_get,
+ 		.timer_del	= common_timer_del,
+ 	};
+-	struct k_clock clock_monotonic_raw = {
++	static struct k_clock clock_monotonic_raw = {
+ 		.clock_getres	= hrtimer_get_res,
+ 		.clock_get	= posix_get_monotonic_raw,
+ 	};
+-	struct k_clock clock_realtime_coarse = {
++	static struct k_clock clock_realtime_coarse = {
+ 		.clock_getres	= posix_get_coarse_res,
+ 		.clock_get	= posix_get_realtime_coarse,
+ 	};
+-	struct k_clock clock_monotonic_coarse = {
++	static struct k_clock clock_monotonic_coarse = {
+ 		.clock_getres	= posix_get_coarse_res,
+ 		.clock_get	= posix_get_monotonic_coarse,
+ 	};
+-	struct k_clock clock_tai = {
++	static struct k_clock clock_tai = {
+ 		.clock_getres	= hrtimer_get_res,
+ 		.clock_get	= posix_get_tai,
+ 		.nsleep		= common_nsleep,
+@@ -319,7 +320,7 @@ static __init int init_posix_timers(void)
+ 		.timer_get	= common_timer_get,
+ 		.timer_del	= common_timer_del,
+ 	};
+-	struct k_clock clock_boottime = {
++	static struct k_clock clock_boottime = {
+ 		.clock_getres	= hrtimer_get_res,
+ 		.clock_get	= posix_get_boottime,
+ 		.nsleep		= common_nsleep,
+@@ -531,7 +532,7 @@ void posix_timers_register_clock(const clockid_t clock_id,
+ 		return;
+ 	}
+ 
+-	posix_clocks[clock_id] = *new_clock;
++	posix_clocks[clock_id] = new_clock;
+ }
+ EXPORT_SYMBOL_GPL(posix_timers_register_clock);
+ 
+@@ -577,9 +578,9 @@ static struct k_clock *clockid_to_kclock(const clockid_t id)
+ 		return (id & CLOCKFD_MASK) == CLOCKFD ?
+ 			&clock_posix_dynamic : &clock_posix_cpu;
+ 
+-	if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres)
++	if (id >= MAX_CLOCKS || !posix_clocks[id] || !posix_clocks[id]->clock_getres)
+ 		return NULL;
+-	return &posix_clocks[id];
++	return posix_clocks[id];
+ }
+ 
+ static int common_timer_create(struct k_itimer *new_timer)
+@@ -597,7 +598,7 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
+ 	struct k_clock *kc = clockid_to_kclock(which_clock);
+ 	struct k_itimer *new_timer;
+ 	int error, new_timer_id;
+-	sigevent_t event;
++	sigevent_t event = { };
+ 	int it_id_set = IT_ID_NOT_SET;
+ 
+ 	if (!kc)
+@@ -1012,6 +1013,13 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
+ 	if (copy_from_user(&new_tp, tp, sizeof (*tp)))
+ 		return -EFAULT;
+ 
++	/* only the CLOCK_REALTIME clock can be set, all other clocks
++	   have their clock_set fptr set to a nosettime dummy function
++	   CLOCK_REALTIME has a NULL clock_set fptr which causes it to
++	   call common_clock_set, which calls do_sys_settimeofday, which
++	   we hook
++	*/
++
+ 	return kc->clock_set(which_clock, &new_tp);
+ }
+ 
+diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
+index 2fac9cc..56fef29 100644
+--- a/kernel/power/Kconfig
++++ b/kernel/power/Kconfig
+@@ -24,6 +24,8 @@ config HIBERNATE_CALLBACKS
+ config HIBERNATION
+ 	bool "Hibernation (aka 'suspend to disk')"
+ 	depends on SWAP && ARCH_HIBERNATION_POSSIBLE
++	depends on !GRKERNSEC_KMEM
++	depends on !PAX_MEMORY_SANITIZE
+ 	select HIBERNATE_CALLBACKS
+ 	select LZO_COMPRESS
+ 	select LZO_DECOMPRESS
+diff --git a/kernel/power/process.c b/kernel/power/process.c
+index f1fe7ec..7d4e641 100644
+--- a/kernel/power/process.c
++++ b/kernel/power/process.c
+@@ -34,6 +34,7 @@ static int try_to_freeze_tasks(bool user_only)
+ 	unsigned int elapsed_msecs;
+ 	bool wakeup = false;
+ 	int sleep_usecs = USEC_PER_MSEC;
++	bool timedout = false;
+ 
+ 	do_gettimeofday(&start);
+ 
+@@ -44,13 +45,20 @@ static int try_to_freeze_tasks(bool user_only)
+ 
+ 	while (true) {
+ 		todo = 0;
++		if (time_after(jiffies, end_time))
++			timedout = true;
+ 		read_lock(&tasklist_lock);
+ 		do_each_thread(g, p) {
+ 			if (p == current || !freeze_task(p))
+ 				continue;
+ 
+-			if (!freezer_should_skip(p))
++			if (!freezer_should_skip(p)) {
+ 				todo++;
++				if (timedout) {
++					printk(KERN_ERR "Task refusing to freeze:\n");
++					sched_show_task(p);
++				}
++			}
+ 		} while_each_thread(g, p);
+ 		read_unlock(&tasklist_lock);
+ 
+@@ -59,7 +67,7 @@ static int try_to_freeze_tasks(bool user_only)
+ 			todo += wq_busy;
+ 		}
+ 
+-		if (!todo || time_after(jiffies, end_time))
++		if (!todo || timedout)
+ 			break;
+ 
+ 		if (pm_wakeup_pending()) {
+diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
+index a755ad7..bf7e534 100644
+--- a/kernel/printk/printk.c
++++ b/kernel/printk/printk.c
+@@ -385,6 +385,11 @@ static int check_syslog_permissions(int type, bool from_file)
+ 	if (from_file && type != SYSLOG_ACTION_OPEN)
+ 		return 0;
+ 
++#ifdef CONFIG_GRKERNSEC_DMESG
++	if (grsec_enable_dmesg && !capable(CAP_SYSLOG) && !capable_nolog(CAP_SYS_ADMIN))
++		return -EPERM;
++#endif
++
+ 	if (syslog_action_restricted(type)) {
+ 		if (capable(CAP_SYSLOG))
+ 			return 0;
+diff --git a/kernel/profile.c b/kernel/profile.c
+index ebdd9c1..612ee05 100644
+--- a/kernel/profile.c
++++ b/kernel/profile.c
+@@ -37,7 +37,7 @@ struct profile_hit {
+ #define NR_PROFILE_HIT		(PAGE_SIZE/sizeof(struct profile_hit))
+ #define NR_PROFILE_GRP		(NR_PROFILE_HIT/PROFILE_GRPSZ)
+ 
+-static atomic_t *prof_buffer;
++static atomic_unchecked_t *prof_buffer;
+ static unsigned long prof_len, prof_shift;
+ 
+ int prof_on __read_mostly;
+@@ -260,7 +260,7 @@ static void profile_flip_buffers(void)
+ 					hits[i].pc = 0;
+ 				continue;
+ 			}
+-			atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
++			atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
+ 			hits[i].hits = hits[i].pc = 0;
+ 		}
+ 	}
+@@ -321,9 +321,9 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
+ 	 * Add the current hit(s) and flush the write-queue out
+ 	 * to the global buffer:
+ 	 */
+-	atomic_add(nr_hits, &prof_buffer[pc]);
++	atomic_add_unchecked(nr_hits, &prof_buffer[pc]);
+ 	for (i = 0; i < NR_PROFILE_HIT; ++i) {
+-		atomic_add(hits[i].hits, &prof_buffer[hits[i].pc]);
++		atomic_add_unchecked(hits[i].hits, &prof_buffer[hits[i].pc]);
+ 		hits[i].pc = hits[i].hits = 0;
+ 	}
+ out:
+@@ -398,7 +398,7 @@ static void do_profile_hits(int type, void *__pc, unsigned int nr_hits)
+ {
+ 	unsigned long pc;
+ 	pc = ((unsigned long)__pc - (unsigned long)_stext) >> prof_shift;
+-	atomic_add(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
++	atomic_add_unchecked(nr_hits, &prof_buffer[min(pc, prof_len - 1)]);
+ }
+ #endif /* !CONFIG_SMP */
+ 
+@@ -494,7 +494,7 @@ read_profile(struct file *file, char __user *buf, size_t count, loff_t *ppos)
+ 			return -EFAULT;
+ 		buf++; p++; count--; read++;
+ 	}
+-	pnt = (char *)prof_buffer + p - sizeof(atomic_t);
++	pnt = (char *)prof_buffer + p - sizeof(atomic_unchecked_t);
+ 	if (copy_to_user(buf, (void *)pnt, count))
+ 		return -EFAULT;
+ 	read += count;
+@@ -525,7 +525,7 @@ static ssize_t write_profile(struct file *file, const char __user *buf,
+ 	}
+ #endif
+ 	profile_discard_flip_buffers();
+-	memset(prof_buffer, 0, prof_len * sizeof(atomic_t));
++	memset(prof_buffer, 0, prof_len * sizeof(atomic_unchecked_t));
+ 	return count;
+ }
+ 
+diff --git a/kernel/ptrace.c b/kernel/ptrace.c
+index be9760f..6ee48dd 100644
+--- a/kernel/ptrace.c
++++ b/kernel/ptrace.c
+@@ -327,7 +327,7 @@ static int ptrace_attach(struct task_struct *task, long request,
+ 	if (seize)
+ 		flags |= PT_SEIZED;
+ 	rcu_read_lock();
+-	if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
++	if (ns_capable_nolog(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
+ 		flags |= PT_PTRACE_CAP;
+ 	rcu_read_unlock();
+ 	task->ptrace = flags;
+@@ -538,7 +538,7 @@ int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst
+ 				break;
+ 			return -EIO;
+ 		}
+-		if (copy_to_user(dst, buf, retval))
++		if (retval > sizeof(buf) || copy_to_user(dst, buf, retval))
+ 			return -EFAULT;
+ 		copied += retval;
+ 		src += retval;
+@@ -826,7 +826,7 @@ int ptrace_request(struct task_struct *child, long request,
+ 	bool seized = child->ptrace & PT_SEIZED;
+ 	int ret = -EIO;
+ 	siginfo_t siginfo, *si;
+-	void __user *datavp = (void __user *) data;
++	void __user *datavp = (__force void __user *) data;
+ 	unsigned long __user *datalp = datavp;
+ 	unsigned long flags;
+ 
+@@ -1072,14 +1072,21 @@ SYSCALL_DEFINE4(ptrace, long, request, long, pid, unsigned long, addr,
+ 		goto out;
+ 	}
+ 
++	if (gr_handle_ptrace(child, request)) {
++		ret = -EPERM;
++		goto out_put_task_struct;
++	}
++
+ 	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
+ 		ret = ptrace_attach(child, request, addr, data);
+ 		/*
+ 		 * Some architectures need to do book-keeping after
+ 		 * a ptrace attach.
+ 		 */
+-		if (!ret)
++		if (!ret) {
+ 			arch_ptrace_attach(child);
++			gr_audit_ptrace(child);
++		}
+ 		goto out_put_task_struct;
+ 	}
+ 
+@@ -1107,7 +1114,7 @@ int generic_ptrace_peekdata(struct task_struct *tsk, unsigned long addr,
+ 	copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), 0);
+ 	if (copied != sizeof(tmp))
+ 		return -EIO;
+-	return put_user(tmp, (unsigned long __user *)data);
++	return put_user(tmp, (__force unsigned long __user *)data);
+ }
+ 
+ int generic_ptrace_pokedata(struct task_struct *tsk, unsigned long addr,
+@@ -1201,7 +1208,7 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
+ }
+ 
+ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
+-				  compat_long_t addr, compat_long_t data)
++				  compat_ulong_t addr, compat_ulong_t data)
+ {
+ 	struct task_struct *child;
+ 	long ret;
+@@ -1217,14 +1224,21 @@ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
+ 		goto out;
+ 	}
+ 
++	if (gr_handle_ptrace(child, request)) {
++		ret = -EPERM;
++		goto out_put_task_struct;
++	}
++
+ 	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
+ 		ret = ptrace_attach(child, request, addr, data);
+ 		/*
+ 		 * Some architectures need to do book-keeping after
+ 		 * a ptrace attach.
+ 		 */
+-		if (!ret)
++		if (!ret) {
+ 			arch_ptrace_attach(child);
++			gr_audit_ptrace(child);
++		}
+ 		goto out_put_task_struct;
+ 	}
+ 
+diff --git a/kernel/range.c b/kernel/range.c
+index 322ea8e..82cfc28 100644
+--- a/kernel/range.c
++++ b/kernel/range.c
+@@ -113,12 +113,12 @@ static int cmp_range(const void *x1, const void *x2)
+ {
+ 	const struct range *r1 = x1;
+ 	const struct range *r2 = x2;
+-	s64 start1, start2;
+ 
+-	start1 = r1->start;
+-	start2 = r2->start;
+-
+-	return start1 - start2;
++	if (r1->start < r2->start)
++		return -1;
++	if (r1->start > r2->start)
++		return 1;
++	return 0;
+ }
+ 
+ int clean_sort_range(struct range *range, int az)
+diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
+index 3318d82..1a5b2d1 100644
+--- a/kernel/rcu/srcu.c
++++ b/kernel/rcu/srcu.c
+@@ -300,9 +300,9 @@ int __srcu_read_lock(struct srcu_struct *sp)
+ 
+ 	idx = ACCESS_ONCE(sp->completed) & 0x1;
+ 	preempt_disable();
+-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
++	ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
+ 	smp_mb(); /* B */  /* Avoid leaking the critical section. */
+-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
++	ACCESS_ONCE_RW(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
+ 	preempt_enable();
+ 	return idx;
+ }
+diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
+index 1254f31..16258dc 100644
+--- a/kernel/rcu/tiny.c
++++ b/kernel/rcu/tiny.c
+@@ -46,7 +46,7 @@
+ /* Forward declarations for tiny_plugin.h. */
+ struct rcu_ctrlblk;
+ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
+-static void rcu_process_callbacks(struct softirq_action *unused);
++static void rcu_process_callbacks(void);
+ static void __call_rcu(struct rcu_head *head,
+ 		       void (*func)(struct rcu_head *rcu),
+ 		       struct rcu_ctrlblk *rcp);
+@@ -312,7 +312,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
+ 				      false));
+ }
+ 
+-static void rcu_process_callbacks(struct softirq_action *unused)
++static __latent_entropy void rcu_process_callbacks(void)
+ {
+ 	__rcu_process_callbacks(&rcu_sched_ctrlblk);
+ 	__rcu_process_callbacks(&rcu_bh_ctrlblk);
+diff --git a/kernel/rcu/torture.c b/kernel/rcu/torture.c
+index 732f8ae..42c1919 100644
+--- a/kernel/rcu/torture.c
++++ b/kernel/rcu/torture.c
+@@ -174,12 +174,12 @@ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
+ 	{ 0 };
+ static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) =
+ 	{ 0 };
+-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
+-static atomic_t n_rcu_torture_alloc;
+-static atomic_t n_rcu_torture_alloc_fail;
+-static atomic_t n_rcu_torture_free;
+-static atomic_t n_rcu_torture_mberror;
+-static atomic_t n_rcu_torture_error;
++static atomic_unchecked_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
++static atomic_unchecked_t n_rcu_torture_alloc;
++static atomic_unchecked_t n_rcu_torture_alloc_fail;
++static atomic_unchecked_t n_rcu_torture_free;
++static atomic_unchecked_t n_rcu_torture_mberror;
++static atomic_unchecked_t n_rcu_torture_error;
+ static long n_rcu_torture_barrier_error;
+ static long n_rcu_torture_boost_ktrerror;
+ static long n_rcu_torture_boost_rterror;
+@@ -297,11 +297,11 @@ rcu_torture_alloc(void)
+ 
+ 	spin_lock_bh(&rcu_torture_lock);
+ 	if (list_empty(&rcu_torture_freelist)) {
+-		atomic_inc(&n_rcu_torture_alloc_fail);
++		atomic_inc_unchecked(&n_rcu_torture_alloc_fail);
+ 		spin_unlock_bh(&rcu_torture_lock);
+ 		return NULL;
+ 	}
+-	atomic_inc(&n_rcu_torture_alloc);
++	atomic_inc_unchecked(&n_rcu_torture_alloc);
+ 	p = rcu_torture_freelist.next;
+ 	list_del_init(p);
+ 	spin_unlock_bh(&rcu_torture_lock);
+@@ -314,7 +314,7 @@ rcu_torture_alloc(void)
+ static void
+ rcu_torture_free(struct rcu_torture *p)
+ {
+-	atomic_inc(&n_rcu_torture_free);
++	atomic_inc_unchecked(&n_rcu_torture_free);
+ 	spin_lock_bh(&rcu_torture_lock);
+ 	list_add_tail(&p->rtort_free, &rcu_torture_freelist);
+ 	spin_unlock_bh(&rcu_torture_lock);
+@@ -435,7 +435,7 @@ rcu_torture_cb(struct rcu_head *p)
+ 	i = rp->rtort_pipe_count;
+ 	if (i > RCU_TORTURE_PIPE_LEN)
+ 		i = RCU_TORTURE_PIPE_LEN;
+-	atomic_inc(&rcu_torture_wcount[i]);
++	atomic_inc_unchecked(&rcu_torture_wcount[i]);
+ 	if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
+ 		rp->rtort_mbtest = 0;
+ 		rcu_torture_free(rp);
+@@ -823,7 +823,7 @@ rcu_torture_writer(void *arg)
+ 			i = old_rp->rtort_pipe_count;
+ 			if (i > RCU_TORTURE_PIPE_LEN)
+ 				i = RCU_TORTURE_PIPE_LEN;
+-			atomic_inc(&rcu_torture_wcount[i]);
++			atomic_inc_unchecked(&rcu_torture_wcount[i]);
+ 			old_rp->rtort_pipe_count++;
+ 			if (gp_normal == gp_exp)
+ 				exp = !!(rcu_random(&rand) & 0x80);
+@@ -841,7 +841,7 @@ rcu_torture_writer(void *arg)
+ 					i = rp->rtort_pipe_count;
+ 					if (i > RCU_TORTURE_PIPE_LEN)
+ 						i = RCU_TORTURE_PIPE_LEN;
+-					atomic_inc(&rcu_torture_wcount[i]);
++					atomic_inc_unchecked(&rcu_torture_wcount[i]);
+ 					if (++rp->rtort_pipe_count >=
+ 					    RCU_TORTURE_PIPE_LEN) {
+ 						rp->rtort_mbtest = 0;
+@@ -940,7 +940,7 @@ static void rcu_torture_timer(unsigned long unused)
+ 		return;
+ 	}
+ 	if (p->rtort_mbtest == 0)
+-		atomic_inc(&n_rcu_torture_mberror);
++		atomic_inc_unchecked(&n_rcu_torture_mberror);
+ 	spin_lock(&rand_lock);
+ 	cur_ops->read_delay(&rand);
+ 	n_rcu_torture_timers++;
+@@ -1010,7 +1010,7 @@ rcu_torture_reader(void *arg)
+ 			continue;
+ 		}
+ 		if (p->rtort_mbtest == 0)
+-			atomic_inc(&n_rcu_torture_mberror);
++			atomic_inc_unchecked(&n_rcu_torture_mberror);
+ 		cur_ops->read_delay(&rand);
+ 		preempt_disable();
+ 		pipe_count = p->rtort_pipe_count;
+@@ -1068,15 +1068,15 @@ rcu_torture_printk(char *page)
+ 	}
+ 	page += sprintf(page, "%s%s ", torture_type, TORTURE_FLAG);
+ 	page += sprintf(page,
+-		       "rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
++		       "rtc: %pP ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
+ 		       rcu_torture_current,
+ 		       rcu_torture_current_version,
+ 		       list_empty(&rcu_torture_freelist),
+-		       atomic_read(&n_rcu_torture_alloc),
+-		       atomic_read(&n_rcu_torture_alloc_fail),
+-		       atomic_read(&n_rcu_torture_free));
++		       atomic_read_unchecked(&n_rcu_torture_alloc),
++		       atomic_read_unchecked(&n_rcu_torture_alloc_fail),
++		       atomic_read_unchecked(&n_rcu_torture_free));
+ 	page += sprintf(page, "rtmbe: %d rtbke: %ld rtbre: %ld ",
+-		       atomic_read(&n_rcu_torture_mberror),
++		       atomic_read_unchecked(&n_rcu_torture_mberror),
+ 		       n_rcu_torture_boost_ktrerror,
+ 		       n_rcu_torture_boost_rterror);
+ 	page += sprintf(page, "rtbf: %ld rtb: %ld nt: %ld ",
+@@ -1095,14 +1095,14 @@ rcu_torture_printk(char *page)
+ 		       n_barrier_attempts,
+ 		       n_rcu_torture_barrier_error);
+ 	page += sprintf(page, "\n%s%s ", torture_type, TORTURE_FLAG);
+-	if (atomic_read(&n_rcu_torture_mberror) != 0 ||
++	if (atomic_read_unchecked(&n_rcu_torture_mberror) != 0 ||
+ 	    n_rcu_torture_barrier_error != 0 ||
+ 	    n_rcu_torture_boost_ktrerror != 0 ||
+ 	    n_rcu_torture_boost_rterror != 0 ||
+ 	    n_rcu_torture_boost_failure != 0 ||
+ 	    i > 1) {
+ 		page += sprintf(page, "!!! ");
+-		atomic_inc(&n_rcu_torture_error);
++		atomic_inc_unchecked(&n_rcu_torture_error);
+ 		WARN_ON_ONCE(1);
+ 	}
+ 	page += sprintf(page, "Reader Pipe: ");
+@@ -1116,7 +1116,7 @@ rcu_torture_printk(char *page)
+ 	page += sprintf(page, "Free-Block Circulation: ");
+ 	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+ 		page += sprintf(page, " %d",
+-			       atomic_read(&rcu_torture_wcount[i]));
++			       atomic_read_unchecked(&rcu_torture_wcount[i]));
+ 	}
+ 	page += sprintf(page, "\n");
+ 	if (cur_ops->stats)
+@@ -1839,7 +1839,7 @@ rcu_torture_cleanup(void)
+ 
+ 	rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
+ 
+-	if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
++	if (atomic_read_unchecked(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
+ 		rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
+ 	else if (n_online_successes != n_online_attempts ||
+ 		 n_offline_successes != n_offline_attempts)
+@@ -1961,18 +1961,18 @@ rcu_torture_init(void)
+ 
+ 	rcu_torture_current = NULL;
+ 	rcu_torture_current_version = 0;
+-	atomic_set(&n_rcu_torture_alloc, 0);
+-	atomic_set(&n_rcu_torture_alloc_fail, 0);
+-	atomic_set(&n_rcu_torture_free, 0);
+-	atomic_set(&n_rcu_torture_mberror, 0);
+-	atomic_set(&n_rcu_torture_error, 0);
++	atomic_set_unchecked(&n_rcu_torture_alloc, 0);
++	atomic_set_unchecked(&n_rcu_torture_alloc_fail, 0);
++	atomic_set_unchecked(&n_rcu_torture_free, 0);
++	atomic_set_unchecked(&n_rcu_torture_mberror, 0);
++	atomic_set_unchecked(&n_rcu_torture_error, 0);
+ 	n_rcu_torture_barrier_error = 0;
+ 	n_rcu_torture_boost_ktrerror = 0;
+ 	n_rcu_torture_boost_rterror = 0;
+ 	n_rcu_torture_boost_failure = 0;
+ 	n_rcu_torture_boosts = 0;
+ 	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
+-		atomic_set(&rcu_torture_wcount[i], 0);
++		atomic_set_unchecked(&rcu_torture_wcount[i], 0);
+ 	for_each_possible_cpu(cpu) {
+ 		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+ 			per_cpu(rcu_torture_count, cpu)[i] = 0;
+diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
+index 6705d94..137e56f 100644
+--- a/kernel/rcu/tree.c
++++ b/kernel/rcu/tree.c
+@@ -390,9 +390,9 @@ static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
+ 	rcu_prepare_for_idle(smp_processor_id());
+ 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
+ 	smp_mb__before_atomic_inc();  /* See above. */
+-	atomic_inc(&rdtp->dynticks);
++	atomic_inc_unchecked(&rdtp->dynticks);
+ 	smp_mb__after_atomic_inc();  /* Force ordering with next sojourn. */
+-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
++	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
+ 
+ 	/*
+ 	 * It is illegal to enter an extended quiescent state while
+@@ -510,10 +510,10 @@ static void rcu_eqs_exit_common(struct rcu_dynticks *rdtp, long long oldval,
+ 			       int user)
+ {
+ 	smp_mb__before_atomic_inc();  /* Force ordering w/previous sojourn. */
+-	atomic_inc(&rdtp->dynticks);
++	atomic_inc_unchecked(&rdtp->dynticks);
+ 	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
+ 	smp_mb__after_atomic_inc();  /* See above. */
+-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
++	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
+ 	rcu_cleanup_after_idle(smp_processor_id());
+ 	trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
+ 	if (!user && !is_idle_task(current)) {
+@@ -634,14 +634,14 @@ void rcu_nmi_enter(void)
+ 	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
+ 
+ 	if (rdtp->dynticks_nmi_nesting == 0 &&
+-	    (atomic_read(&rdtp->dynticks) & 0x1))
++	    (atomic_read_unchecked(&rdtp->dynticks) & 0x1))
+ 		return;
+ 	rdtp->dynticks_nmi_nesting++;
+ 	smp_mb__before_atomic_inc();  /* Force delay from prior write. */
+-	atomic_inc(&rdtp->dynticks);
++	atomic_inc_unchecked(&rdtp->dynticks);
+ 	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
+ 	smp_mb__after_atomic_inc();  /* See above. */
+-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
++	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks) & 0x1));
+ }
+ 
+ /**
+@@ -660,9 +660,9 @@ void rcu_nmi_exit(void)
+ 		return;
+ 	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
+ 	smp_mb__before_atomic_inc();  /* See above. */
+-	atomic_inc(&rdtp->dynticks);
++	atomic_inc_unchecked(&rdtp->dynticks);
+ 	smp_mb__after_atomic_inc();  /* Force delay to next write. */
+-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
++	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks) & 0x1);
+ }
+ 
+ /**
+@@ -675,7 +675,7 @@ void rcu_nmi_exit(void)
+  */
+ bool notrace __rcu_is_watching(void)
+ {
+-	return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
++	return atomic_read_unchecked(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
+ }
+ 
+ /**
+@@ -758,7 +758,7 @@ static int rcu_is_cpu_rrupt_from_idle(void)
+ static int dyntick_save_progress_counter(struct rcu_data *rdp,
+ 					 bool *isidle, unsigned long *maxj)
+ {
+-	rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
++	rdp->dynticks_snap = atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
+ 	rcu_sysidle_check_cpu(rdp, isidle, maxj);
+ 	return (rdp->dynticks_snap & 0x1) == 0;
+ }
+@@ -781,7 +781,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
+ 	unsigned int curr;
+ 	unsigned int snap;
+ 
+-	curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
++	curr = (unsigned int)atomic_add_return_unchecked(0, &rdp->dynticks->dynticks);
+ 	snap = (unsigned int)rdp->dynticks_snap;
+ 
+ 	/*
+@@ -1466,9 +1466,9 @@ static int rcu_gp_init(struct rcu_state *rsp)
+ 		rdp = this_cpu_ptr(rsp->rda);
+ 		rcu_preempt_check_blocked_tasks(rnp);
+ 		rnp->qsmask = rnp->qsmaskinit;
+-		ACCESS_ONCE(rnp->gpnum) = rsp->gpnum;
++		ACCESS_ONCE_RW(rnp->gpnum) = rsp->gpnum;
+ 		WARN_ON_ONCE(rnp->completed != rsp->completed);
+-		ACCESS_ONCE(rnp->completed) = rsp->completed;
++		ACCESS_ONCE_RW(rnp->completed) = rsp->completed;
+ 		if (rnp == rdp->mynode)
+ 			__note_gp_changes(rsp, rnp, rdp);
+ 		rcu_preempt_boost_start_gp(rnp);
+@@ -1562,7 +1562,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
+ 	rcu_for_each_node_breadth_first(rsp, rnp) {
+ 		raw_spin_lock_irq(&rnp->lock);
+ 		smp_mb__after_unlock_lock();
+-		ACCESS_ONCE(rnp->completed) = rsp->gpnum;
++		ACCESS_ONCE_RW(rnp->completed) = rsp->gpnum;
+ 		rdp = this_cpu_ptr(rsp->rda);
+ 		if (rnp == rdp->mynode)
+ 			__note_gp_changes(rsp, rnp, rdp);
+@@ -1928,7 +1928,7 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
+ 		rsp->qlen += rdp->qlen;
+ 		rdp->n_cbs_orphaned += rdp->qlen;
+ 		rdp->qlen_lazy = 0;
+-		ACCESS_ONCE(rdp->qlen) = 0;
++		ACCESS_ONCE_RW(rdp->qlen) = 0;
+ 	}
+ 
+ 	/*
+@@ -2175,7 +2175,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
+ 	}
+ 	smp_mb(); /* List handling before counting for rcu_barrier(). */
+ 	rdp->qlen_lazy -= count_lazy;
+-	ACCESS_ONCE(rdp->qlen) -= count;
++	ACCESS_ONCE_RW(rdp->qlen) -= count;
+ 	rdp->n_cbs_invoked += count;
+ 
+ 	/* Reinstate batch limit if we have worked down the excess. */
+@@ -2378,7 +2378,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
+ /*
+  * Do RCU core processing for the current CPU.
+  */
+-static void rcu_process_callbacks(struct softirq_action *unused)
++static void rcu_process_callbacks(void)
+ {
+ 	struct rcu_state *rsp;
+ 
+@@ -2486,7 +2486,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
+ 	WARN_ON_ONCE((unsigned long)head & 0x3); /* Misaligned rcu_head! */
+ 	if (debug_rcu_head_queue(head)) {
+ 		/* Probable double call_rcu(), so leak the callback. */
+-		ACCESS_ONCE(head->func) = rcu_leak_callback;
++		ACCESS_ONCE_RW(head->func) = rcu_leak_callback;
+ 		WARN_ONCE(1, "__call_rcu(): Leaked duplicate callback\n");
+ 		return;
+ 	}
+@@ -2514,7 +2514,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
+ 		local_irq_restore(flags);
+ 		return;
+ 	}
+-	ACCESS_ONCE(rdp->qlen)++;
++	ACCESS_ONCE_RW(rdp->qlen)++;
+ 	if (lazy)
+ 		rdp->qlen_lazy++;
+ 	else
+@@ -2723,11 +2723,11 @@ void synchronize_sched_expedited(void)
+ 	 * counter wrap on a 32-bit system.  Quite a few more CPUs would of
+ 	 * course be required on a 64-bit system.
+ 	 */
+-	if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
++	if (ULONG_CMP_GE((ulong)atomic_long_read_unchecked(&rsp->expedited_start),
+ 			 (ulong)atomic_long_read(&rsp->expedited_done) +
+ 			 ULONG_MAX / 8)) {
+ 		synchronize_sched();
+-		atomic_long_inc(&rsp->expedited_wrap);
++		atomic_long_inc_unchecked(&rsp->expedited_wrap);
+ 		return;
+ 	}
+ 
+@@ -2735,7 +2735,7 @@ void synchronize_sched_expedited(void)
+ 	 * Take a ticket.  Note that atomic_inc_return() implies a
+ 	 * full memory barrier.
+ 	 */
+-	snap = atomic_long_inc_return(&rsp->expedited_start);
++	snap = atomic_long_inc_return_unchecked(&rsp->expedited_start);
+ 	firstsnap = snap;
+ 	get_online_cpus();
+ 	WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
+@@ -2748,14 +2748,14 @@ void synchronize_sched_expedited(void)
+ 			     synchronize_sched_expedited_cpu_stop,
+ 			     NULL) == -EAGAIN) {
+ 		put_online_cpus();
+-		atomic_long_inc(&rsp->expedited_tryfail);
++		atomic_long_inc_unchecked(&rsp->expedited_tryfail);
+ 
+ 		/* Check to see if someone else did our work for us. */
+ 		s = atomic_long_read(&rsp->expedited_done);
+ 		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
+ 			/* ensure test happens before caller kfree */
+ 			smp_mb__before_atomic_inc(); /* ^^^ */
+-			atomic_long_inc(&rsp->expedited_workdone1);
++			atomic_long_inc_unchecked(&rsp->expedited_workdone1);
+ 			return;
+ 		}
+ 
+@@ -2764,7 +2764,7 @@ void synchronize_sched_expedited(void)
+ 			udelay(trycount * num_online_cpus());
+ 		} else {
+ 			wait_rcu_gp(call_rcu_sched);
+-			atomic_long_inc(&rsp->expedited_normal);
++			atomic_long_inc_unchecked(&rsp->expedited_normal);
+ 			return;
+ 		}
+ 
+@@ -2773,7 +2773,7 @@ void synchronize_sched_expedited(void)
+ 		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
+ 			/* ensure test happens before caller kfree */
+ 			smp_mb__before_atomic_inc(); /* ^^^ */
+-			atomic_long_inc(&rsp->expedited_workdone2);
++			atomic_long_inc_unchecked(&rsp->expedited_workdone2);
+ 			return;
+ 		}
+ 
+@@ -2785,10 +2785,10 @@ void synchronize_sched_expedited(void)
+ 		 * period works for us.
+ 		 */
+ 		get_online_cpus();
+-		snap = atomic_long_read(&rsp->expedited_start);
++		snap = atomic_long_read_unchecked(&rsp->expedited_start);
+ 		smp_mb(); /* ensure read is before try_stop_cpus(). */
+ 	}
+-	atomic_long_inc(&rsp->expedited_stoppedcpus);
++	atomic_long_inc_unchecked(&rsp->expedited_stoppedcpus);
+ 
+ 	/*
+ 	 * Everyone up to our most recent fetch is covered by our grace
+@@ -2797,16 +2797,16 @@ void synchronize_sched_expedited(void)
+ 	 * than we did already did their update.
+ 	 */
+ 	do {
+-		atomic_long_inc(&rsp->expedited_done_tries);
++		atomic_long_inc_unchecked(&rsp->expedited_done_tries);
+ 		s = atomic_long_read(&rsp->expedited_done);
+ 		if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
+ 			/* ensure test happens before caller kfree */
+ 			smp_mb__before_atomic_inc(); /* ^^^ */
+-			atomic_long_inc(&rsp->expedited_done_lost);
++			atomic_long_inc_unchecked(&rsp->expedited_done_lost);
+ 			break;
+ 		}
+ 	} while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
+-	atomic_long_inc(&rsp->expedited_done_exit);
++	atomic_long_inc_unchecked(&rsp->expedited_done_exit);
+ 
+ 	put_online_cpus();
+ }
+@@ -3012,7 +3012,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
+ 	 * ACCESS_ONCE() to prevent the compiler from speculating
+ 	 * the increment to precede the early-exit check.
+ 	 */
+-	ACCESS_ONCE(rsp->n_barrier_done)++;
++	ACCESS_ONCE_RW(rsp->n_barrier_done)++;
+ 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
+ 	_rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
+ 	smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
+@@ -3062,7 +3062,7 @@ static void _rcu_barrier(struct rcu_state *rsp)
+ 
+ 	/* Increment ->n_barrier_done to prevent duplicate work. */
+ 	smp_mb(); /* Keep increment after above mechanism. */
+-	ACCESS_ONCE(rsp->n_barrier_done)++;
++	ACCESS_ONCE_RW(rsp->n_barrier_done)++;
+ 	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
+ 	_rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
+ 	smp_mb(); /* Keep increment before caller's subsequent code. */
+@@ -3107,10 +3107,10 @@ rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
+ 	rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
+ 	init_callback_list(rdp);
+ 	rdp->qlen_lazy = 0;
+-	ACCESS_ONCE(rdp->qlen) = 0;
++	ACCESS_ONCE_RW(rdp->qlen) = 0;
+ 	rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
+ 	WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
+-	WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
++	WARN_ON_ONCE(atomic_read_unchecked(&rdp->dynticks->dynticks) != 1);
+ 	rdp->cpu = cpu;
+ 	rdp->rsp = rsp;
+ 	rcu_boot_init_nocb_percpu_data(rdp);
+@@ -3144,8 +3144,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
+ 	init_callback_list(rdp);  /* Re-enable callbacks on this CPU. */
+ 	rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
+ 	rcu_sysidle_init_percpu_data(rdp->dynticks);
+-	atomic_set(&rdp->dynticks->dynticks,
+-		   (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
++	atomic_set_unchecked(&rdp->dynticks->dynticks,
++		   (atomic_read_unchecked(&rdp->dynticks->dynticks) & ~0x1) + 1);
+ 	raw_spin_unlock(&rnp->lock);		/* irqs remain disabled. */
+ 
+ 	/* Add CPU to rcu_node bitmasks. */
+diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
+index 8c19873..bf83c57 100644
+--- a/kernel/rcu/tree.h
++++ b/kernel/rcu/tree.h
+@@ -87,11 +87,11 @@ struct rcu_dynticks {
+ 	long long dynticks_nesting; /* Track irq/process nesting level. */
+ 				    /* Process level is worth LLONG_MAX/2. */
+ 	int dynticks_nmi_nesting;   /* Track NMI nesting level. */
+-	atomic_t dynticks;	    /* Even value for idle, else odd. */
++	atomic_unchecked_t dynticks;/* Even value for idle, else odd. */
+ #ifdef CONFIG_NO_HZ_FULL_SYSIDLE
+ 	long long dynticks_idle_nesting;
+ 				    /* irq/process nesting level from idle. */
+-	atomic_t dynticks_idle;	    /* Even value for idle, else odd. */
++	atomic_unchecked_t dynticks_idle;/* Even value for idle, else odd. */
+ 				    /*  "Idle" excludes userspace execution. */
+ 	unsigned long dynticks_idle_jiffies;
+ 				    /* End of last non-NMI non-idle period. */
+@@ -431,17 +431,17 @@ struct rcu_state {
+ 						/*  _rcu_barrier(). */
+ 	/* End of fields guarded by barrier_mutex. */
+ 
+-	atomic_long_t expedited_start;		/* Starting ticket. */
+-	atomic_long_t expedited_done;		/* Done ticket. */
+-	atomic_long_t expedited_wrap;		/* # near-wrap incidents. */
+-	atomic_long_t expedited_tryfail;	/* # acquisition failures. */
+-	atomic_long_t expedited_workdone1;	/* # done by others #1. */
+-	atomic_long_t expedited_workdone2;	/* # done by others #2. */
+-	atomic_long_t expedited_normal;		/* # fallbacks to normal. */
+-	atomic_long_t expedited_stoppedcpus;	/* # successful stop_cpus. */
+-	atomic_long_t expedited_done_tries;	/* # tries to update _done. */
+-	atomic_long_t expedited_done_lost;	/* # times beaten to _done. */
+-	atomic_long_t expedited_done_exit;	/* # times exited _done loop. */
++	atomic_long_unchecked_t expedited_start;	/* Starting ticket. */
++	atomic_long_t expedited_done;			/* Done ticket. */
++	atomic_long_unchecked_t expedited_wrap;		/* # near-wrap incidents. */
++	atomic_long_unchecked_t expedited_tryfail;	/* # acquisition failures. */
++	atomic_long_unchecked_t expedited_workdone1;	/* # done by others #1. */
++	atomic_long_unchecked_t expedited_workdone2;	/* # done by others #2. */
++	atomic_long_unchecked_t expedited_normal;	/* # fallbacks to normal. */
++	atomic_long_unchecked_t expedited_stoppedcpus;	/* # successful stop_cpus. */
++	atomic_long_unchecked_t expedited_done_tries;	/* # tries to update _done. */
++	atomic_long_unchecked_t expedited_done_lost;	/* # times beaten to _done. */
++	atomic_long_unchecked_t expedited_done_exit;	/* # times exited _done loop. */
+ 
+ 	unsigned long jiffies_force_qs;		/* Time at which to invoke */
+ 						/*  force_quiescent_state(). */
+diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
+index 6e2ef4b..c15df94 100644
+--- a/kernel/rcu/tree_plugin.h
++++ b/kernel/rcu/tree_plugin.h
+@@ -758,7 +758,7 @@ static int rcu_preempted_readers_exp(struct rcu_node *rnp)
+ static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
+ {
+ 	return !rcu_preempted_readers_exp(rnp) &&
+-	       ACCESS_ONCE(rnp->expmask) == 0;
++	       ACCESS_ONCE_RW(rnp->expmask) == 0;
+ }
+ 
+ /*
+@@ -920,7 +920,7 @@ void synchronize_rcu_expedited(void)
+ 
+ 	/* Clean up and exit. */
+ 	smp_mb(); /* ensure expedited GP seen before counter increment. */
+-	ACCESS_ONCE(sync_rcu_preempt_exp_count)++;
++	ACCESS_ONCE_RW(sync_rcu_preempt_exp_count)++;
+ unlock_mb_ret:
+ 	mutex_unlock(&sync_rcu_preempt_exp_mutex);
+ mb_ret:
+@@ -1496,7 +1496,7 @@ static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
+ 	free_cpumask_var(cm);
+ }
+ 
+-static struct smp_hotplug_thread rcu_cpu_thread_spec = {
++static struct smp_hotplug_thread rcu_cpu_thread_spec __read_only = {
+ 	.store			= &rcu_cpu_kthread_task,
+ 	.thread_should_run	= rcu_cpu_kthread_should_run,
+ 	.thread_fn		= rcu_cpu_kthread,
+@@ -1965,7 +1965,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
+ 	print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
+ 	pr_err("\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u %s\n",
+ 	       cpu, ticks_value, ticks_title,
+-	       atomic_read(&rdtp->dynticks) & 0xfff,
++	       atomic_read_unchecked(&rdtp->dynticks) & 0xfff,
+ 	       rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
+ 	       rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
+ 	       fast_no_hz);
+@@ -2129,7 +2129,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
+ 
+ 	/* Enqueue the callback on the nocb list and update counts. */
+ 	old_rhpp = xchg(&rdp->nocb_tail, rhtp);
+-	ACCESS_ONCE(*old_rhpp) = rhp;
++	ACCESS_ONCE_RW(*old_rhpp) = rhp;
+ 	atomic_long_add(rhcount, &rdp->nocb_q_count);
+ 	atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
+ 
+@@ -2302,12 +2302,12 @@ static int rcu_nocb_kthread(void *arg)
+ 		 * Extract queued callbacks, update counts, and wait
+ 		 * for a grace period to elapse.
+ 		 */
+-		ACCESS_ONCE(rdp->nocb_head) = NULL;
++		ACCESS_ONCE_RW(rdp->nocb_head) = NULL;
+ 		tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
+ 		c = atomic_long_xchg(&rdp->nocb_q_count, 0);
+ 		cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
+-		ACCESS_ONCE(rdp->nocb_p_count) += c;
+-		ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
++		ACCESS_ONCE_RW(rdp->nocb_p_count) += c;
++		ACCESS_ONCE_RW(rdp->nocb_p_count_lazy) += cl;
+ 		rcu_nocb_wait_gp(rdp);
+ 
+ 		/* Each pass through the following loop invokes a callback. */
+@@ -2333,8 +2333,8 @@ static int rcu_nocb_kthread(void *arg)
+ 			list = next;
+ 		}
+ 		trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
+-		ACCESS_ONCE(rdp->nocb_p_count) -= c;
+-		ACCESS_ONCE(rdp->nocb_p_count_lazy) -= cl;
++		ACCESS_ONCE_RW(rdp->nocb_p_count) -= c;
++		ACCESS_ONCE_RW(rdp->nocb_p_count_lazy) -= cl;
+ 		rdp->n_nocbs_invoked += c;
+ 	}
+ 	return 0;
+@@ -2351,7 +2351,7 @@ static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
+ {
+ 	if (!rcu_nocb_need_deferred_wakeup(rdp))
+ 		return;
+-	ACCESS_ONCE(rdp->nocb_defer_wakeup) = false;
++	ACCESS_ONCE_RW(rdp->nocb_defer_wakeup) = false;
+ 	wake_up(&rdp->nocb_wq);
+ 	trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("DeferredWakeEmpty"));
+ }
+@@ -2377,7 +2377,7 @@ static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
+ 		t = kthread_run(rcu_nocb_kthread, rdp,
+ 				"rcuo%c/%d", rsp->abbr, cpu);
+ 		BUG_ON(IS_ERR(t));
+-		ACCESS_ONCE(rdp->nocb_kthread) = t;
++		ACCESS_ONCE_RW(rdp->nocb_kthread) = t;
+ 	}
+ }
+ 
+@@ -2513,11 +2513,11 @@ static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq)
+ 
+ 	/* Record start of fully idle period. */
+ 	j = jiffies;
+-	ACCESS_ONCE(rdtp->dynticks_idle_jiffies) = j;
++	ACCESS_ONCE_RW(rdtp->dynticks_idle_jiffies) = j;
+ 	smp_mb__before_atomic_inc();
+-	atomic_inc(&rdtp->dynticks_idle);
++	atomic_inc_unchecked(&rdtp->dynticks_idle);
+ 	smp_mb__after_atomic_inc();
+-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
++	WARN_ON_ONCE(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1);
+ }
+ 
+ /*
+@@ -2582,9 +2582,9 @@ static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
+ 
+ 	/* Record end of idle period. */
+ 	smp_mb__before_atomic_inc();
+-	atomic_inc(&rdtp->dynticks_idle);
++	atomic_inc_unchecked(&rdtp->dynticks_idle);
+ 	smp_mb__after_atomic_inc();
+-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
++	WARN_ON_ONCE(!(atomic_read_unchecked(&rdtp->dynticks_idle) & 0x1));
+ 
+ 	/*
+ 	 * If we are the timekeeping CPU, we are permitted to be non-idle
+@@ -2625,7 +2625,7 @@ static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
+ 		WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
+ 
+ 	/* Pick up current idle and NMI-nesting counter and check. */
+-	cur = atomic_read(&rdtp->dynticks_idle);
++	cur = atomic_read_unchecked(&rdtp->dynticks_idle);
+ 	if (cur & 0x1) {
+ 		*isidle = false; /* We are not idle! */
+ 		return;
+@@ -2688,7 +2688,7 @@ static void rcu_sysidle(unsigned long j)
+ 	case RCU_SYSIDLE_NOT:
+ 
+ 		/* First time all are idle, so note a short idle period. */
+-		ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_SHORT;
++		ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_SHORT;
+ 		break;
+ 
+ 	case RCU_SYSIDLE_SHORT:
+@@ -2725,7 +2725,7 @@ static void rcu_sysidle(unsigned long j)
+ static void rcu_sysidle_cancel(void)
+ {
+ 	smp_mb();
+-	ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_NOT;
++	ACCESS_ONCE_RW(full_sysidle_state) = RCU_SYSIDLE_NOT;
+ }
+ 
+ /*
+@@ -2773,7 +2773,7 @@ static void rcu_sysidle_cb(struct rcu_head *rhp)
+ 	smp_mb();  /* grace period precedes setting inuse. */
+ 
+ 	rshp = container_of(rhp, struct rcu_sysidle_head, rh);
+-	ACCESS_ONCE(rshp->inuse) = 0;
++	ACCESS_ONCE_RW(rshp->inuse) = 0;
+ }
+ 
+ /*
+diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
+index 4def475..8ffddde 100644
+--- a/kernel/rcu/tree_trace.c
++++ b/kernel/rcu/tree_trace.c
+@@ -121,7 +121,7 @@ static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
+ 		   ulong2long(rdp->completed), ulong2long(rdp->gpnum),
+ 		   rdp->passed_quiesce, rdp->qs_pending);
+ 	seq_printf(m, " dt=%d/%llx/%d df=%lu",
+-		   atomic_read(&rdp->dynticks->dynticks),
++		   atomic_read_unchecked(&rdp->dynticks->dynticks),
+ 		   rdp->dynticks->dynticks_nesting,
+ 		   rdp->dynticks->dynticks_nmi_nesting,
+ 		   rdp->dynticks_fqs);
+@@ -182,17 +182,17 @@ static int show_rcuexp(struct seq_file *m, void *v)
+ 	struct rcu_state *rsp = (struct rcu_state *)m->private;
+ 
+ 	seq_printf(m, "s=%lu d=%lu w=%lu tf=%lu wd1=%lu wd2=%lu n=%lu sc=%lu dt=%lu dl=%lu dx=%lu\n",
+-		   atomic_long_read(&rsp->expedited_start),
++		   atomic_long_read_unchecked(&rsp->expedited_start),
+ 		   atomic_long_read(&rsp->expedited_done),
+-		   atomic_long_read(&rsp->expedited_wrap),
+-		   atomic_long_read(&rsp->expedited_tryfail),
+-		   atomic_long_read(&rsp->expedited_workdone1),
+-		   atomic_long_read(&rsp->expedited_workdone2),
+-		   atomic_long_read(&rsp->expedited_normal),
+-		   atomic_long_read(&rsp->expedited_stoppedcpus),
+-		   atomic_long_read(&rsp->expedited_done_tries),
+-		   atomic_long_read(&rsp->expedited_done_lost),
+-		   atomic_long_read(&rsp->expedited_done_exit));
++		   atomic_long_read_unchecked(&rsp->expedited_wrap),
++		   atomic_long_read_unchecked(&rsp->expedited_tryfail),
++		   atomic_long_read_unchecked(&rsp->expedited_workdone1),
++		   atomic_long_read_unchecked(&rsp->expedited_workdone2),
++		   atomic_long_read_unchecked(&rsp->expedited_normal),
++		   atomic_long_read_unchecked(&rsp->expedited_stoppedcpus),
++		   atomic_long_read_unchecked(&rsp->expedited_done_tries),
++		   atomic_long_read_unchecked(&rsp->expedited_done_lost),
++		   atomic_long_read_unchecked(&rsp->expedited_done_exit));
+ 	return 0;
+ }
+ 
+diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
+index c54609f..2e8829c 100644
+--- a/kernel/rcu/update.c
++++ b/kernel/rcu/update.c
+@@ -312,10 +312,10 @@ int rcu_jiffies_till_stall_check(void)
+ 	 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
+ 	 */
+ 	if (till_stall_check < 3) {
+-		ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
++		ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 3;
+ 		till_stall_check = 3;
+ 	} else if (till_stall_check > 300) {
+-		ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
++		ACCESS_ONCE_RW(rcu_cpu_stall_timeout) = 300;
+ 		till_stall_check = 300;
+ 	}
+ 	return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
+diff --git a/kernel/resource.c b/kernel/resource.c
+index 3f285dc..5755f62 100644
+--- a/kernel/resource.c
++++ b/kernel/resource.c
+@@ -152,8 +152,18 @@ static const struct file_operations proc_iomem_operations = {
+ 
+ static int __init ioresources_init(void)
+ {
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#ifdef CONFIG_GRKERNSEC_PROC_USER
++	proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations);
++	proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
++#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++	proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations);
++	proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations);
++#endif
++#else
+ 	proc_create("ioports", 0, NULL, &proc_ioports_operations);
+ 	proc_create("iomem", 0, NULL, &proc_iomem_operations);
++#endif
+ 	return 0;
+ }
+ __initcall(ioresources_init);
+diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
+index 4a07353..66b5291 100644
+--- a/kernel/sched/auto_group.c
++++ b/kernel/sched/auto_group.c
+@@ -11,7 +11,7 @@
+ 
+ unsigned int __read_mostly sysctl_sched_autogroup_enabled = 1;
+ static struct autogroup autogroup_default;
+-static atomic_t autogroup_seq_nr;
++static atomic_unchecked_t autogroup_seq_nr;
+ 
+ void __init autogroup_init(struct task_struct *init_task)
+ {
+@@ -79,7 +79,7 @@ static inline struct autogroup *autogroup_create(void)
+ 
+ 	kref_init(&ag->kref);
+ 	init_rwsem(&ag->lock);
+-	ag->id = atomic_inc_return(&autogroup_seq_nr);
++	ag->id = atomic_inc_return_unchecked(&autogroup_seq_nr);
+ 	ag->tg = tg;
+ #ifdef CONFIG_RT_GROUP_SCHED
+ 	/*
+diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
+index a63f4dc..349bbb0 100644
+--- a/kernel/sched/completion.c
++++ b/kernel/sched/completion.c
+@@ -204,7 +204,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible);
+  * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
+  * or number of jiffies left till timeout) if completed.
+  */
+-long __sched
++long __sched __intentional_overflow(-1)
+ wait_for_completion_interruptible_timeout(struct completion *x,
+ 					  unsigned long timeout)
+ {
+@@ -221,7 +221,7 @@ EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
+  *
+  * Return: -ERESTARTSYS if interrupted, 0 if completed.
+  */
+-int __sched wait_for_completion_killable(struct completion *x)
++int __sched __intentional_overflow(-1) wait_for_completion_killable(struct completion *x)
+ {
+ 	long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
+ 	if (t == -ERESTARTSYS)
+@@ -242,7 +242,7 @@ EXPORT_SYMBOL(wait_for_completion_killable);
+  * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
+  * or number of jiffies left till timeout) if completed.
+  */
+-long __sched
++long __sched __intentional_overflow(-1)
+ wait_for_completion_killable_timeout(struct completion *x,
+ 				     unsigned long timeout)
+ {
+diff --git a/kernel/sched/core.c b/kernel/sched/core.c
+index 5e973ef..9a0e514 100644
+--- a/kernel/sched/core.c
++++ b/kernel/sched/core.c
+@@ -1775,7 +1775,7 @@ void set_numabalancing_state(bool enabled)
+ int sysctl_numa_balancing(struct ctl_table *table, int write,
+ 			 void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table t;
++	ctl_table_no_const t;
+ 	int err;
+ 	int state = numabalancing_enabled;
+ 
+@@ -2255,8 +2255,10 @@ context_switch(struct rq *rq, struct task_struct *prev,
+ 		next->active_mm = oldmm;
+ 		atomic_inc(&oldmm->mm_count);
+ 		enter_lazy_tlb(oldmm, next);
+-	} else
++	} else {
+ 		switch_mm(oldmm, mm, next);
++		populate_stack();
++	}
+ 
+ 	if (!prev->mm) {
+ 		prev->active_mm = NULL;
+@@ -3055,6 +3057,8 @@ int can_nice(const struct task_struct *p, const int nice)
+ 	/* convert nice value [19,-20] to rlimit style value [1,40] */
+ 	int nice_rlim = 20 - nice;
+ 
++	gr_learn_resource(p, RLIMIT_NICE, nice_rlim, 1);
++
+ 	return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
+ 		capable(CAP_SYS_NICE));
+ }
+@@ -3088,7 +3092,8 @@ SYSCALL_DEFINE1(nice, int, increment)
+ 	if (nice > 19)
+ 		nice = 19;
+ 
+-	if (increment < 0 && !can_nice(current, nice))
++	if (increment < 0 && (!can_nice(current, nice) ||
++			      gr_handle_chroot_nice()))
+ 		return -EPERM;
+ 
+ 	retval = security_task_setnice(current, nice);
+@@ -3361,6 +3366,7 @@ recheck:
+ 			if (policy != p->policy && !rlim_rtprio)
+ 				return -EPERM;
+ 
++			gr_learn_resource(p, RLIMIT_RTPRIO, attr->sched_priority, 1);
+ 			/* can't increase priority */
+ 			if (attr->sched_priority > p->rt_priority &&
+ 			    attr->sched_priority > rlim_rtprio)
+@@ -4734,8 +4740,10 @@ void idle_task_exit(void)
+ 
+ 	BUG_ON(cpu_online(smp_processor_id()));
+ 
+-	if (mm != &init_mm)
++	if (mm != &init_mm) {
+ 		switch_mm(mm, &init_mm, current);
++		populate_stack();
++	}
+ 	mmdrop(mm);
+ }
+ 
+@@ -4813,7 +4821,7 @@ static void migrate_tasks(unsigned int dead_cpu)
+ 
+ #if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL)
+ 
+-static struct ctl_table sd_ctl_dir[] = {
++static ctl_table_no_const sd_ctl_dir[] __read_only = {
+ 	{
+ 		.procname	= "sched_domain",
+ 		.mode		= 0555,
+@@ -4830,17 +4838,17 @@ static struct ctl_table sd_ctl_root[] = {
+ 	{}
+ };
+ 
+-static struct ctl_table *sd_alloc_ctl_entry(int n)
++static ctl_table_no_const *sd_alloc_ctl_entry(int n)
+ {
+-	struct ctl_table *entry =
++	ctl_table_no_const *entry =
+ 		kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL);
+ 
+ 	return entry;
+ }
+ 
+-static void sd_free_ctl_entry(struct ctl_table **tablep)
++static void sd_free_ctl_entry(ctl_table_no_const *tablep)
+ {
+-	struct ctl_table *entry;
++	ctl_table_no_const *entry;
+ 
+ 	/*
+ 	 * In the intermediate directories, both the child directory and
+@@ -4848,22 +4856,25 @@ static void sd_free_ctl_entry(struct ctl_table **tablep)
+ 	 * will always be set. In the lowest directory the names are
+ 	 * static strings and all have proc handlers.
+ 	 */
+-	for (entry = *tablep; entry->mode; entry++) {
+-		if (entry->child)
+-			sd_free_ctl_entry(&entry->child);
++	for (entry = tablep; entry->mode; entry++) {
++		if (entry->child) {
++			sd_free_ctl_entry(entry->child);
++			pax_open_kernel();
++			entry->child = NULL;
++			pax_close_kernel();
++		}
+ 		if (entry->proc_handler == NULL)
+ 			kfree(entry->procname);
+ 	}
+ 
+-	kfree(*tablep);
+-	*tablep = NULL;
++	kfree(tablep);
+ }
+ 
+ static int min_load_idx = 0;
+ static int max_load_idx = CPU_LOAD_IDX_MAX-1;
+ 
+ static void
+-set_table_entry(struct ctl_table *entry,
++set_table_entry(ctl_table_no_const *entry,
+ 		const char *procname, void *data, int maxlen,
+ 		umode_t mode, proc_handler *proc_handler,
+ 		bool load_idx)
+@@ -4883,7 +4894,7 @@ set_table_entry(struct ctl_table *entry,
+ static struct ctl_table *
+ sd_alloc_ctl_domain_table(struct sched_domain *sd)
+ {
+-	struct ctl_table *table = sd_alloc_ctl_entry(13);
++	ctl_table_no_const *table = sd_alloc_ctl_entry(13);
+ 
+ 	if (table == NULL)
+ 		return NULL;
+@@ -4918,9 +4929,9 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd)
+ 	return table;
+ }
+ 
+-static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu)
++static ctl_table_no_const *sd_alloc_ctl_cpu_table(int cpu)
+ {
+-	struct ctl_table *entry, *table;
++	ctl_table_no_const *entry, *table;
+ 	struct sched_domain *sd;
+ 	int domain_num = 0, i;
+ 	char buf[32];
+@@ -4947,11 +4958,13 @@ static struct ctl_table_header *sd_sysctl_header;
+ static void register_sched_domain_sysctl(void)
+ {
+ 	int i, cpu_num = num_possible_cpus();
+-	struct ctl_table *entry = sd_alloc_ctl_entry(cpu_num + 1);
++	ctl_table_no_const *entry = sd_alloc_ctl_entry(cpu_num + 1);
+ 	char buf[32];
+ 
+ 	WARN_ON(sd_ctl_dir[0].child);
++	pax_open_kernel();
+ 	sd_ctl_dir[0].child = entry;
++	pax_close_kernel();
+ 
+ 	if (entry == NULL)
+ 		return;
+@@ -4974,8 +4987,12 @@ static void unregister_sched_domain_sysctl(void)
+ 	if (sd_sysctl_header)
+ 		unregister_sysctl_table(sd_sysctl_header);
+ 	sd_sysctl_header = NULL;
+-	if (sd_ctl_dir[0].child)
+-		sd_free_ctl_entry(&sd_ctl_dir[0].child);
++	if (sd_ctl_dir[0].child) {
++		sd_free_ctl_entry(sd_ctl_dir[0].child);
++		pax_open_kernel();
++		sd_ctl_dir[0].child = NULL;
++		pax_close_kernel();
++	}
+ }
+ #else
+ static void register_sched_domain_sysctl(void)
+diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
+index 9b4c4f3..665489b 100644
+--- a/kernel/sched/fair.c
++++ b/kernel/sched/fair.c
+@@ -1647,7 +1647,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
+ 
+ static void reset_ptenuma_scan(struct task_struct *p)
+ {
+-	ACCESS_ONCE(p->mm->numa_scan_seq)++;
++	ACCESS_ONCE_RW(p->mm->numa_scan_seq)++;
+ 	p->mm->numa_scan_offset = 0;
+ }
+ 
+@@ -6851,7 +6851,7 @@ static void nohz_idle_balance(struct rq *this_rq, enum cpu_idle_type idle) { }
+  * run_rebalance_domains is triggered when needed from the scheduler tick.
+  * Also triggered for nohz idle balancing (with nohz_balancing_kick set).
+  */
+-static void run_rebalance_domains(struct softirq_action *h)
++static __latent_entropy void run_rebalance_domains(void)
+ {
+ 	struct rq *this_rq = this_rq();
+ 	enum cpu_idle_type idle = this_rq->idle_balance ?
+diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
+index f964add..dcd823d 100644
+--- a/kernel/sched/sched.h
++++ b/kernel/sched/sched.h
+@@ -1157,7 +1157,7 @@ struct sched_class {
+ #ifdef CONFIG_FAIR_GROUP_SCHED
+ 	void (*task_move_group) (struct task_struct *p, int on_rq);
+ #endif
+-};
++} __do_const;
+ 
+ #define sched_class_highest (&stop_sched_class)
+ #define for_each_class(class) \
+diff --git a/kernel/signal.c b/kernel/signal.c
+index 52f881d..1e9f941 100644
+--- a/kernel/signal.c
++++ b/kernel/signal.c
+@@ -51,12 +51,12 @@ static struct kmem_cache *sigqueue_cachep;
+ 
+ int print_fatal_signals __read_mostly;
+ 
+-static void __user *sig_handler(struct task_struct *t, int sig)
++static __sighandler_t sig_handler(struct task_struct *t, int sig)
+ {
+ 	return t->sighand->action[sig - 1].sa.sa_handler;
+ }
+ 
+-static int sig_handler_ignored(void __user *handler, int sig)
++static int sig_handler_ignored(__sighandler_t handler, int sig)
+ {
+ 	/* Is it explicitly or implicitly ignored? */
+ 	return handler == SIG_IGN ||
+@@ -65,7 +65,7 @@ static int sig_handler_ignored(void __user *handler, int sig)
+ 
+ static int sig_task_ignored(struct task_struct *t, int sig, bool force)
+ {
+-	void __user *handler;
++	__sighandler_t handler;
+ 
+ 	handler = sig_handler(t, sig);
+ 
+@@ -369,6 +369,9 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t flags, int override_rlimi
+ 	atomic_inc(&user->sigpending);
+ 	rcu_read_unlock();
+ 
++	if (!override_rlimit)
++		gr_learn_resource(t, RLIMIT_SIGPENDING, atomic_read(&user->sigpending), 1);
++
+ 	if (override_rlimit ||
+ 	    atomic_read(&user->sigpending) <=
+ 			task_rlimit(t, RLIMIT_SIGPENDING)) {
+@@ -496,7 +499,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
+ 
+ int unhandled_signal(struct task_struct *tsk, int sig)
+ {
+-	void __user *handler = tsk->sighand->action[sig-1].sa.sa_handler;
++	__sighandler_t handler = tsk->sighand->action[sig-1].sa.sa_handler;
+ 	if (is_global_init(tsk))
+ 		return 1;
+ 	if (handler != SIG_IGN && handler != SIG_DFL)
+@@ -816,6 +819,13 @@ static int check_kill_permission(int sig, struct siginfo *info,
+ 		}
+ 	}
+ 
++	/* allow glibc communication via tgkill to other threads in our
++	   thread group */
++	if ((info == SEND_SIG_NOINFO || info->si_code != SI_TKILL ||
++	     sig != (SIGRTMIN+1) || task_tgid_vnr(t) != info->si_pid)
++	    && gr_handle_signal(t, sig))
++		return -EPERM;
++
+ 	return security_task_kill(t, info, sig, 0);
+ }
+ 
+@@ -1199,7 +1209,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
+ 	return send_signal(sig, info, p, 1);
+ }
+ 
+-static int
++int
+ specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
+ {
+ 	return send_signal(sig, info, t, 0);
+@@ -1236,6 +1246,7 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
+ 	unsigned long int flags;
+ 	int ret, blocked, ignored;
+ 	struct k_sigaction *action;
++	int is_unhandled = 0;
+ 
+ 	spin_lock_irqsave(&t->sighand->siglock, flags);
+ 	action = &t->sighand->action[sig-1];
+@@ -1250,9 +1261,18 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
+ 	}
+ 	if (action->sa.sa_handler == SIG_DFL)
+ 		t->signal->flags &= ~SIGNAL_UNKILLABLE;
++	if (action->sa.sa_handler == SIG_IGN || action->sa.sa_handler == SIG_DFL)
++		is_unhandled = 1;
+ 	ret = specific_send_sig_info(sig, info, t);
+ 	spin_unlock_irqrestore(&t->sighand->siglock, flags);
+ 
++	/* only deal with unhandled signals, java etc trigger SIGSEGV during
++	   normal operation */
++	if (is_unhandled) {
++		gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, t);
++		gr_handle_crash(t, sig);
++	}
++
+ 	return ret;
+ }
+ 
+@@ -1319,8 +1339,11 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
+ 	ret = check_kill_permission(sig, info, p);
+ 	rcu_read_unlock();
+ 
+-	if (!ret && sig)
++	if (!ret && sig) {
+ 		ret = do_send_sig_info(sig, info, p, true);
++		if (!ret)
++			gr_log_signal(sig, !is_si_special(info) ? info->si_addr : NULL, p);
++	}
+ 
+ 	return ret;
+ }
+@@ -2926,7 +2949,15 @@ do_send_specific(pid_t tgid, pid_t pid, int sig, struct siginfo *info)
+ 	int error = -ESRCH;
+ 
+ 	rcu_read_lock();
+-	p = find_task_by_vpid(pid);
++#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK
++	/* allow glibc communication via tgkill to other threads in our
++	   thread group */
++	if (grsec_enable_chroot_findtask && info->si_code == SI_TKILL &&
++	    sig == (SIGRTMIN+1) && tgid == info->si_pid)	    
++		p = find_task_by_vpid_unrestricted(pid);
++	else
++#endif
++		p = find_task_by_vpid(pid);
+ 	if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) {
+ 		error = check_kill_permission(sig, info, p);
+ 		/*
+@@ -3239,8 +3270,8 @@ COMPAT_SYSCALL_DEFINE2(sigaltstack,
+ 	}
+ 	seg = get_fs();
+ 	set_fs(KERNEL_DS);
+-	ret = do_sigaltstack((stack_t __force __user *) (uss_ptr ? &uss : NULL),
+-			     (stack_t __force __user *) &uoss,
++	ret = do_sigaltstack((stack_t __force_user *) (uss_ptr ? &uss : NULL),
++			     (stack_t __force_user *) &uoss,
+ 			     compat_user_stack_pointer());
+ 	set_fs(seg);
+ 	if (ret >= 0 && uoss_ptr)  {
+diff --git a/kernel/smpboot.c b/kernel/smpboot.c
+index 60d35ac5..59d289f 100644
+--- a/kernel/smpboot.c
++++ b/kernel/smpboot.c
+@@ -289,7 +289,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
+ 		}
+ 		smpboot_unpark_thread(plug_thread, cpu);
+ 	}
+-	list_add(&plug_thread->list, &hotplug_threads);
++	pax_list_add(&plug_thread->list, &hotplug_threads);
+ out:
+ 	mutex_unlock(&smpboot_threads_lock);
+ 	put_online_cpus();
+@@ -307,7 +307,7 @@ void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread)
+ {
+ 	get_online_cpus();
+ 	mutex_lock(&smpboot_threads_lock);
+-	list_del(&plug_thread->list);
++	pax_list_del(&plug_thread->list);
+ 	smpboot_destroy_threads(plug_thread);
+ 	mutex_unlock(&smpboot_threads_lock);
+ 	put_online_cpus();
+diff --git a/kernel/softirq.c b/kernel/softirq.c
+index 93be750..06335f9 100644
+--- a/kernel/softirq.c
++++ b/kernel/softirq.c
+@@ -52,7 +52,7 @@ irq_cpustat_t irq_stat[NR_CPUS] ____cacheline_aligned;
+ EXPORT_SYMBOL(irq_stat);
+ #endif
+ 
+-static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;
++static struct softirq_action softirq_vec[NR_SOFTIRQS] __read_only __aligned(PAGE_SIZE);
+ 
+ DEFINE_PER_CPU(struct task_struct *, ksoftirqd);
+ 
+@@ -267,7 +267,7 @@ restart:
+ 		kstat_incr_softirqs_this_cpu(vec_nr);
+ 
+ 		trace_softirq_entry(vec_nr);
+-		h->action(h);
++		h->action();
+ 		trace_softirq_exit(vec_nr);
+ 		if (unlikely(prev_count != preempt_count())) {
+ 			pr_err("huh, entered softirq %u %s %p with preempt_count %08x, exited with %08x?\n",
+@@ -427,7 +427,7 @@ void __raise_softirq_irqoff(unsigned int nr)
+ 	or_softirq_pending(1UL << nr);
+ }
+ 
+-void open_softirq(int nr, void (*action)(struct softirq_action *))
++void __init open_softirq(int nr, void (*action)(void))
+ {
+ 	softirq_vec[nr].action = action;
+ }
+@@ -479,7 +479,7 @@ void __tasklet_hi_schedule_first(struct tasklet_struct *t)
+ }
+ EXPORT_SYMBOL(__tasklet_hi_schedule_first);
+ 
+-static void tasklet_action(struct softirq_action *a)
++static void tasklet_action(void)
+ {
+ 	struct tasklet_struct *list;
+ 
+@@ -515,7 +515,7 @@ static void tasklet_action(struct softirq_action *a)
+ 	}
+ }
+ 
+-static void tasklet_hi_action(struct softirq_action *a)
++static __latent_entropy void tasklet_hi_action(void)
+ {
+ 	struct tasklet_struct *list;
+ 
+@@ -746,7 +746,7 @@ static struct notifier_block cpu_nfb = {
+ 	.notifier_call = cpu_callback
+ };
+ 
+-static struct smp_hotplug_thread softirq_threads = {
++static struct smp_hotplug_thread softirq_threads __read_only = {
+ 	.store			= &ksoftirqd,
+ 	.thread_should_run	= ksoftirqd_should_run,
+ 	.thread_fn		= run_ksoftirqd,
+diff --git a/kernel/sys.c b/kernel/sys.c
+index c0a58be..95e292b 100644
+--- a/kernel/sys.c
++++ b/kernel/sys.c
+@@ -148,6 +148,12 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
+ 		error = -EACCES;
+ 		goto out;
+ 	}
++
++	if (gr_handle_chroot_setpriority(p, niceval)) {
++		error = -EACCES;
++		goto out;
++	}
++
+ 	no_nice = security_task_setnice(p, niceval);
+ 	if (no_nice) {
+ 		error = no_nice;
+@@ -351,6 +357,20 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, gid_t, egid)
+ 			goto error;
+ 	}
+ 
++	if (gr_check_group_change(new->gid, new->egid, INVALID_GID))
++		goto error;
++
++	if (!gid_eq(new->gid, old->gid)) {
++		/* make sure we generate a learn log for what will
++		   end up being a role transition after a full-learning
++		   policy is generated
++		   CAP_SETGID is required to perform a transition
++		   we may not log a CAP_SETGID check above, e.g.
++		   in the case where new rgid = old egid
++		*/
++		gr_learn_cap(current, new, CAP_SETGID);
++	}
++
+ 	if (rgid != (gid_t) -1 ||
+ 	    (egid != (gid_t) -1 && !gid_eq(kegid, old->gid)))
+ 		new->sgid = new->egid;
+@@ -386,6 +406,10 @@ SYSCALL_DEFINE1(setgid, gid_t, gid)
+ 	old = current_cred();
+ 
+ 	retval = -EPERM;
++
++	if (gr_check_group_change(kgid, kgid, kgid))
++		goto error;
++
+ 	if (ns_capable(old->user_ns, CAP_SETGID))
+ 		new->gid = new->egid = new->sgid = new->fsgid = kgid;
+ 	else if (gid_eq(kgid, old->gid) || gid_eq(kgid, old->sgid))
+@@ -403,7 +427,7 @@ error:
+ /*
+  * change the user struct in a credentials set to match the new UID
+  */
+-static int set_user(struct cred *new)
++int set_user(struct cred *new)
+ {
+ 	struct user_struct *new_user;
+ 
+@@ -483,7 +507,18 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
+ 			goto error;
+ 	}
+ 
++	if (gr_check_user_change(new->uid, new->euid, INVALID_UID))
++		goto error;
++
+ 	if (!uid_eq(new->uid, old->uid)) {
++		/* make sure we generate a learn log for what will
++		   end up being a role transition after a full-learning
++		   policy is generated
++		   CAP_SETUID is required to perform a transition
++		   we may not log a CAP_SETUID check above, e.g.
++		   in the case where new ruid = old euid
++		*/
++		gr_learn_cap(current, new, CAP_SETUID);
+ 		retval = set_user(new);
+ 		if (retval < 0)
+ 			goto error;
+@@ -533,6 +568,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid)
+ 	old = current_cred();
+ 
+ 	retval = -EPERM;
++
++	if (gr_check_crash_uid(kuid))
++		goto error;
++	if (gr_check_user_change(kuid, kuid, kuid))
++		goto error;
++
+ 	if (ns_capable(old->user_ns, CAP_SETUID)) {
+ 		new->suid = new->uid = kuid;
+ 		if (!uid_eq(kuid, old->uid)) {
+@@ -602,6 +643,9 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
+ 			goto error;
+ 	}
+ 
++	if (gr_check_user_change(kruid, keuid, INVALID_UID))
++		goto error;
++
+ 	if (ruid != (uid_t) -1) {
+ 		new->uid = kruid;
+ 		if (!uid_eq(kruid, old->uid)) {
+@@ -684,6 +728,9 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
+ 			goto error;
+ 	}
+ 
++	if (gr_check_group_change(krgid, kegid, INVALID_GID))
++		goto error;
++
+ 	if (rgid != (gid_t) -1)
+ 		new->gid = krgid;
+ 	if (egid != (gid_t) -1)
+@@ -745,12 +792,16 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid)
+ 	    uid_eq(kuid, old->suid) || uid_eq(kuid, old->fsuid) ||
+ 	    ns_capable(old->user_ns, CAP_SETUID)) {
+ 		if (!uid_eq(kuid, old->fsuid)) {
++			if (gr_check_user_change(INVALID_UID, INVALID_UID, kuid))
++				goto error;
++
+ 			new->fsuid = kuid;
+ 			if (security_task_fix_setuid(new, old, LSM_SETID_FS) == 0)
+ 				goto change_okay;
+ 		}
+ 	}
+ 
++error:
+ 	abort_creds(new);
+ 	return old_fsuid;
+ 
+@@ -783,12 +834,16 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid)
+ 	if (gid_eq(kgid, old->gid)  || gid_eq(kgid, old->egid)  ||
+ 	    gid_eq(kgid, old->sgid) || gid_eq(kgid, old->fsgid) ||
+ 	    ns_capable(old->user_ns, CAP_SETGID)) {
++		if (gr_check_group_change(INVALID_GID, INVALID_GID, kgid))
++			goto error;
++
+ 		if (!gid_eq(kgid, old->fsgid)) {
+ 			new->fsgid = kgid;
+ 			goto change_okay;
+ 		}
+ 	}
+ 
++error:
+ 	abort_creds(new);
+ 	return old_fsgid;
+ 
+@@ -1167,19 +1222,19 @@ SYSCALL_DEFINE1(olduname, struct oldold_utsname __user *, name)
+ 		return -EFAULT;
+ 
+ 	down_read(&uts_sem);
+-	error = __copy_to_user(&name->sysname, &utsname()->sysname,
++	error = __copy_to_user(name->sysname, &utsname()->sysname,
+ 			       __OLD_UTS_LEN);
+ 	error |= __put_user(0, name->sysname + __OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->nodename, &utsname()->nodename,
++	error |= __copy_to_user(name->nodename, &utsname()->nodename,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0, name->nodename + __OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->release, &utsname()->release,
++	error |= __copy_to_user(name->release, &utsname()->release,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0, name->release + __OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->version, &utsname()->version,
++	error |= __copy_to_user(name->version, &utsname()->version,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0, name->version + __OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->machine, &utsname()->machine,
++	error |= __copy_to_user(name->machine, &utsname()->machine,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0, name->machine + __OLD_UTS_LEN);
+ 	up_read(&uts_sem);
+@@ -1381,6 +1436,13 @@ int do_prlimit(struct task_struct *tsk, unsigned int resource,
+ 			 */
+ 			new_rlim->rlim_cur = 1;
+ 		}
++		/* Handle the case where a fork and setuid occur and then RLIMIT_NPROC
++		   is changed to a lower value.  Since tasks can be created by the same
++		   user in between this limit change and an execve by this task, force
++		   a recheck only for this task by setting PF_NPROC_EXCEEDED
++		*/
++		if (resource == RLIMIT_NPROC && tsk->real_cred->user != INIT_USER)
++			tsk->flags |= PF_NPROC_EXCEEDED;
+ 	}
+ 	if (!retval) {
+ 		if (old_rlim)
+diff --git a/kernel/sysctl.c b/kernel/sysctl.c
+index c1b26e1..bc7b50d 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -94,7 +94,6 @@
+ 
+ 
+ #if defined(CONFIG_SYSCTL)
+-
+ /* External variables not in a header file. */
+ extern int max_threads;
+ extern int suid_dumpable;
+@@ -118,19 +117,18 @@ extern int blk_iopoll_enabled;
+ 
+ /* Constants used for minimum and  maximum */
+ #ifdef CONFIG_LOCKUP_DETECTOR
+-static int sixty = 60;
++static int sixty __read_only = 60;
+ #endif
+ 
+-static int __maybe_unused neg_one = -1;
+-
+-static int zero;
+-static int __maybe_unused one = 1;
+-static int __maybe_unused two = 2;
+-static int __maybe_unused three = 3;
+-static unsigned long one_ul = 1;
+-static int one_hundred = 100;
++static int __maybe_unused neg_one __read_only = -1;
++static int zero __read_only = 0;
++static int __maybe_unused one __read_only = 1;
++static int __maybe_unused two __read_only = 2;
++static int __maybe_unused three __read_only = 3;
++static unsigned long one_ul __read_only = 1;
++static int one_hundred __read_only = 100;
+ #ifdef CONFIG_PRINTK
+-static int ten_thousand = 10000;
++static int ten_thousand __read_only = 10000;
+ #endif
+ 
+ /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
+@@ -181,10 +179,8 @@ static int proc_taint(struct ctl_table *table, int write,
+ 			       void __user *buffer, size_t *lenp, loff_t *ppos);
+ #endif
+ 
+-#ifdef CONFIG_PRINTK
+ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
+ 				void __user *buffer, size_t *lenp, loff_t *ppos);
+-#endif
+ 
+ static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write,
+ 		void __user *buffer, size_t *lenp, loff_t *ppos);
+@@ -215,6 +211,8 @@ static int sysrq_sysctl_handler(ctl_table *table, int write,
+ 
+ #endif
+ 
++extern struct ctl_table grsecurity_table[];
++
+ static struct ctl_table kern_table[];
+ static struct ctl_table vm_table[];
+ static struct ctl_table fs_table[];
+@@ -229,6 +227,20 @@ extern struct ctl_table epoll_table[];
+ int sysctl_legacy_va_layout;
+ #endif
+ 
++#ifdef CONFIG_PAX_SOFTMODE
++static ctl_table pax_table[] = {
++	{
++		.procname	= "softmode",
++		.data		= &pax_softmode,
++		.maxlen		= sizeof(unsigned int),
++		.mode		= 0600,
++		.proc_handler	= &proc_dointvec,
++	},
++
++	{ }
++};
++#endif
++
+ /* The default sysctl tables: */
+ 
+ static struct ctl_table sysctl_base_table[] = {
+@@ -277,6 +289,22 @@ static int max_extfrag_threshold = 1000;
+ #endif
+ 
+ static struct ctl_table kern_table[] = {
++#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_ROFS)
++	{
++		.procname	= "grsecurity",
++		.mode		= 0500,
++		.child		= grsecurity_table,
++	},
++#endif
++
++#ifdef CONFIG_PAX_SOFTMODE
++	{
++		.procname	= "pax",
++		.mode		= 0500,
++		.child		= pax_table,
++	},
++#endif
++
+ 	{
+ 		.procname	= "sched_child_runs_first",
+ 		.data		= &sysctl_sched_child_runs_first,
+@@ -639,7 +667,7 @@ static struct ctl_table kern_table[] = {
+ 		.data		= &modprobe_path,
+ 		.maxlen		= KMOD_PATH_LEN,
+ 		.mode		= 0644,
+-		.proc_handler	= proc_dostring,
++		.proc_handler	= proc_dostring_modpriv,
+ 	},
+ 	{
+ 		.procname	= "modules_disabled",
+@@ -806,16 +834,20 @@ static struct ctl_table kern_table[] = {
+ 		.extra1		= &zero,
+ 		.extra2		= &one,
+ 	},
++#endif
+ 	{
+ 		.procname	= "kptr_restrict",
+ 		.data		= &kptr_restrict,
+ 		.maxlen		= sizeof(int),
+ 		.mode		= 0644,
+ 		.proc_handler	= proc_dointvec_minmax_sysadmin,
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++		.extra1		= &two,
++#else
+ 		.extra1		= &zero,
++#endif
+ 		.extra2		= &two,
+ 	},
+-#endif
+ 	{
+ 		.procname	= "ngroups_max",
+ 		.data		= &ngroups_max,
+@@ -1060,10 +1092,17 @@ static struct ctl_table kern_table[] = {
+ 	 */
+ 	{
+ 		.procname	= "perf_event_paranoid",
+-		.data		= &sysctl_perf_event_paranoid,
+-		.maxlen		= sizeof(sysctl_perf_event_paranoid),
++		.data		= &sysctl_perf_event_legitimately_concerned,
++		.maxlen		= sizeof(sysctl_perf_event_legitimately_concerned),
+ 		.mode		= 0644,
+-		.proc_handler	= proc_dointvec,
++		/* go ahead, be a hero */
++		.proc_handler	= proc_dointvec_minmax_sysadmin,
++		.extra1		= &neg_one,
++#ifdef CONFIG_GRKERNSEC_PERF_HARDEN
++		.extra2		= &three,
++#else
++		.extra2		= &two,
++#endif
+ 	},
+ 	{
+ 		.procname	= "perf_event_mlock_kb",
+@@ -1334,6 +1373,13 @@ static struct ctl_table vm_table[] = {
+ 		.proc_handler	= proc_dointvec_minmax,
+ 		.extra1		= &zero,
+ 	},
++	{
++		.procname	= "heap_stack_gap",
++		.data		= &sysctl_heap_stack_gap,
++		.maxlen		= sizeof(sysctl_heap_stack_gap),
++		.mode		= 0644,
++		.proc_handler	= proc_doulongvec_minmax,
++	},
+ #else
+ 	{
+ 		.procname	= "nr_trim_pages",
+@@ -1798,6 +1844,16 @@ int proc_dostring(struct ctl_table *table, int write,
+ 			       buffer, lenp, ppos);
+ }
+ 
++int proc_dostring_modpriv(struct ctl_table *table, int write,
++		  void __user *buffer, size_t *lenp, loff_t *ppos)
++{
++	if (write && !capable(CAP_SYS_MODULE))
++		return -EPERM;
++
++	return _proc_do_string(table->data, table->maxlen, write,
++			       buffer, lenp, ppos);
++}
++
+ static size_t proc_skip_spaces(char **buf)
+ {
+ 	size_t ret;
+@@ -1903,6 +1959,8 @@ static int proc_put_long(void __user **buf, size_t *size, unsigned long val,
+ 	len = strlen(tmp);
+ 	if (len > *size)
+ 		len = *size;
++	if (len > sizeof(tmp))
++		len = sizeof(tmp);
+ 	if (copy_to_user(*buf, tmp, len))
+ 		return -EFAULT;
+ 	*size -= len;
+@@ -2067,7 +2125,7 @@ int proc_dointvec(struct ctl_table *table, int write,
+ static int proc_taint(struct ctl_table *table, int write,
+ 			       void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table t;
++	ctl_table_no_const t;
+ 	unsigned long tmptaint = get_taint();
+ 	int err;
+ 
+@@ -2095,7 +2153,6 @@ static int proc_taint(struct ctl_table *table, int write,
+ 	return err;
+ }
+ 
+-#ifdef CONFIG_PRINTK
+ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
+ 				void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+@@ -2104,7 +2161,6 @@ static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write,
+ 
+ 	return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+ }
+-#endif
+ 
+ struct do_proc_dointvec_minmax_conv_param {
+ 	int *min;
+@@ -2651,6 +2707,12 @@ int proc_dostring(struct ctl_table *table, int write,
+ 	return -ENOSYS;
+ }
+ 
++int proc_dostring_modpriv(struct ctl_table *table, int write,
++		  void __user *buffer, size_t *lenp, loff_t *ppos)
++{
++	return -ENOSYS;
++}
++
+ int proc_dointvec(struct ctl_table *table, int write,
+ 		  void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+@@ -2707,5 +2769,6 @@ EXPORT_SYMBOL(proc_dointvec_minmax);
+ EXPORT_SYMBOL(proc_dointvec_userhz_jiffies);
+ EXPORT_SYMBOL(proc_dointvec_ms_jiffies);
+ EXPORT_SYMBOL(proc_dostring);
++EXPORT_SYMBOL(proc_dostring_modpriv);
+ EXPORT_SYMBOL(proc_doulongvec_minmax);
+ EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
+diff --git a/kernel/taskstats.c b/kernel/taskstats.c
+index 13d2f7c..c93d0b0 100644
+--- a/kernel/taskstats.c
++++ b/kernel/taskstats.c
+@@ -28,9 +28,12 @@
+ #include <linux/fs.h>
+ #include <linux/file.h>
+ #include <linux/pid_namespace.h>
++#include <linux/grsecurity.h>
+ #include <net/genetlink.h>
+ #include <linux/atomic.h>
+ 
++extern int gr_is_taskstats_denied(int pid);
++
+ /*
+  * Maximum length of a cpumask that can be specified in
+  * the TASKSTATS_CMD_ATTR_REGISTER/DEREGISTER_CPUMASK attribute
+@@ -576,6 +579,9 @@ err:
+ 
+ static int taskstats_user_cmd(struct sk_buff *skb, struct genl_info *info)
+ {
++	if (gr_is_taskstats_denied(current->pid))
++		return -EACCES;
++
+ 	if (info->attrs[TASKSTATS_CMD_ATTR_REGISTER_CPUMASK])
+ 		return cmd_attr_register_cpumask(info);
+ 	else if (info->attrs[TASKSTATS_CMD_ATTR_DEREGISTER_CPUMASK])
+diff --git a/kernel/time.c b/kernel/time.c
+index 3eb322e..1ba53cf 100644
+--- a/kernel/time.c
++++ b/kernel/time.c
+@@ -172,6 +172,11 @@ int do_sys_settimeofday(const struct timespec *tv, const struct timezone *tz)
+ 		return error;
+ 
+ 	if (tz) {
++		/* we log in do_settimeofday called below, so don't log twice
++		*/
++		if (!tv)
++			gr_log_timechange();
++
+ 		sys_tz = *tz;
+ 		update_vsyscall_tz();
+ 		if (firsttime) {
+diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
+index cd45a07..b8a1463 100644
+--- a/kernel/time/alarmtimer.c
++++ b/kernel/time/alarmtimer.c
+@@ -823,7 +823,7 @@ static int __init alarmtimer_init(void)
+ 	struct platform_device *pdev;
+ 	int error = 0;
+ 	int i;
+-	struct k_clock alarm_clock = {
++	static struct k_clock alarm_clock = {
+ 		.clock_getres	= alarm_clock_getres,
+ 		.clock_get	= alarm_clock_get,
+ 		.timer_create	= alarm_timer_create,
+diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
+index 5b40279..81e58db 100644
+--- a/kernel/time/timekeeping.c
++++ b/kernel/time/timekeeping.c
+@@ -15,6 +15,7 @@
+ #include <linux/init.h>
+ #include <linux/mm.h>
+ #include <linux/sched.h>
++#include <linux/grsecurity.h>
+ #include <linux/syscore_ops.h>
+ #include <linux/clocksource.h>
+ #include <linux/jiffies.h>
+@@ -501,6 +502,8 @@ int do_settimeofday(const struct timespec *tv)
+ 	if (!timespec_valid_strict(tv))
+ 		return -EINVAL;
+ 
++	gr_log_timechange();
++
+ 	raw_spin_lock_irqsave(&timekeeper_lock, flags);
+ 	write_seqcount_begin(&timekeeper_seq);
+ 
+diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
+index 61ed862..3b52c65 100644
+--- a/kernel/time/timer_list.c
++++ b/kernel/time/timer_list.c
+@@ -45,12 +45,16 @@ DECLARE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases);
+ 
+ static void print_name_offset(struct seq_file *m, void *sym)
+ {
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	SEQ_printf(m, "<%p>", NULL);
++#else
+ 	char symname[KSYM_NAME_LEN];
+ 
+ 	if (lookup_symbol_name((unsigned long)sym, symname) < 0)
+ 		SEQ_printf(m, "<%pK>", sym);
+ 	else
+ 		SEQ_printf(m, "%s", symname);
++#endif
+ }
+ 
+ static void
+@@ -119,7 +123,11 @@ next_one:
+ static void
+ print_base(struct seq_file *m, struct hrtimer_clock_base *base, u64 now)
+ {
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	SEQ_printf(m, "  .base:       %p\n", NULL);
++#else
+ 	SEQ_printf(m, "  .base:       %pK\n", base);
++#endif
+ 	SEQ_printf(m, "  .index:      %d\n",
+ 			base->index);
+ 	SEQ_printf(m, "  .resolution: %Lu nsecs\n",
+@@ -362,7 +370,11 @@ static int __init init_timer_list_procfs(void)
+ {
+ 	struct proc_dir_entry *pe;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++	pe = proc_create("timer_list", 0400, NULL, &timer_list_fops);
++#else
+ 	pe = proc_create("timer_list", 0444, NULL, &timer_list_fops);
++#endif
+ 	if (!pe)
+ 		return -ENOMEM;
+ 	return 0;
+diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
+index 1fb08f2..ca4bb1e 100644
+--- a/kernel/time/timer_stats.c
++++ b/kernel/time/timer_stats.c
+@@ -116,7 +116,7 @@ static ktime_t time_start, time_stop;
+ static unsigned long nr_entries;
+ static struct entry entries[MAX_ENTRIES];
+ 
+-static atomic_t overflow_count;
++static atomic_unchecked_t overflow_count;
+ 
+ /*
+  * The entries are in a hash-table, for fast lookup:
+@@ -140,7 +140,7 @@ static void reset_entries(void)
+ 	nr_entries = 0;
+ 	memset(entries, 0, sizeof(entries));
+ 	memset(tstat_hash_table, 0, sizeof(tstat_hash_table));
+-	atomic_set(&overflow_count, 0);
++	atomic_set_unchecked(&overflow_count, 0);
+ }
+ 
+ static struct entry *alloc_entry(void)
+@@ -261,7 +261,7 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
+ 	if (likely(entry))
+ 		entry->count++;
+ 	else
+-		atomic_inc(&overflow_count);
++		atomic_inc_unchecked(&overflow_count);
+ 
+  out_unlock:
+ 	raw_spin_unlock_irqrestore(lock, flags);
+@@ -269,12 +269,16 @@ void timer_stats_update_stats(void *timer, pid_t pid, void *startf,
+ 
+ static void print_name_offset(struct seq_file *m, unsigned long addr)
+ {
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	seq_printf(m, "<%p>", NULL);
++#else
+ 	char symname[KSYM_NAME_LEN];
+ 
+ 	if (lookup_symbol_name(addr, symname) < 0)
+-		seq_printf(m, "<%p>", (void *)addr);
++		seq_printf(m, "<%pK>", (void *)addr);
+ 	else
+ 		seq_printf(m, "%s", symname);
++#endif
+ }
+ 
+ static int tstats_show(struct seq_file *m, void *v)
+@@ -300,8 +304,8 @@ static int tstats_show(struct seq_file *m, void *v)
+ 
+ 	seq_puts(m, "Timer Stats Version: v0.3\n");
+ 	seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
+-	if (atomic_read(&overflow_count))
+-		seq_printf(m, "Overflow: %d entries\n", atomic_read(&overflow_count));
++	if (atomic_read_unchecked(&overflow_count))
++		seq_printf(m, "Overflow: %d entries\n", atomic_read_unchecked(&overflow_count));
+ 	seq_printf(m, "Collection: %s\n", timer_stats_active ? "active" : "inactive");
+ 
+ 	for (i = 0; i < nr_entries; i++) {
+@@ -417,7 +421,11 @@ static int __init init_tstats_procfs(void)
+ {
+ 	struct proc_dir_entry *pe;
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++	pe = proc_create("timer_stats", 0600, NULL, &tstats_fops);
++#else
+ 	pe = proc_create("timer_stats", 0644, NULL, &tstats_fops);
++#endif
+ 	if (!pe)
+ 		return -ENOMEM;
+ 	return 0;
+diff --git a/kernel/timer.c b/kernel/timer.c
+index 38f0d40..96b2ebf 100644
+--- a/kernel/timer.c
++++ b/kernel/timer.c
+@@ -1366,7 +1366,7 @@ void update_process_times(int user_tick)
+ /*
+  * This function runs timers and the timer-tq in bottom half context.
+  */
+-static void run_timer_softirq(struct softirq_action *h)
++static __latent_entropy void run_timer_softirq(void)
+ {
+ 	struct tvec_base *base = __this_cpu_read(tvec_bases);
+ 
+@@ -1429,7 +1429,7 @@ static void process_timeout(unsigned long __data)
+  *
+  * In all cases the return value is guaranteed to be non-negative.
+  */
+-signed long __sched schedule_timeout(signed long timeout)
++signed long __sched __intentional_overflow(-1) schedule_timeout(signed long timeout)
+ {
+ 	struct timer_list timer;
+ 	unsigned long expire;
+diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
+index 4f3a3c03..04b7886 100644
+--- a/kernel/trace/blktrace.c
++++ b/kernel/trace/blktrace.c
+@@ -328,7 +328,7 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
+ 	struct blk_trace *bt = filp->private_data;
+ 	char buf[16];
+ 
+-	snprintf(buf, sizeof(buf), "%u\n", atomic_read(&bt->dropped));
++	snprintf(buf, sizeof(buf), "%u\n", atomic_read_unchecked(&bt->dropped));
+ 
+ 	return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
+ }
+@@ -386,7 +386,7 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
+ 		return 1;
+ 
+ 	bt = buf->chan->private_data;
+-	atomic_inc(&bt->dropped);
++	atomic_inc_unchecked(&bt->dropped);
+ 	return 0;
+ }
+ 
+@@ -487,7 +487,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
+ 
+ 	bt->dir = dir;
+ 	bt->dev = dev;
+-	atomic_set(&bt->dropped, 0);
++	atomic_set_unchecked(&bt->dropped, 0);
+ 	INIT_LIST_HEAD(&bt->running_list);
+ 
+ 	ret = -EIO;
+diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
+index e3be87e..abc908f 100644
+--- a/kernel/trace/ftrace.c
++++ b/kernel/trace/ftrace.c
+@@ -1965,12 +1965,17 @@ ftrace_code_disable(struct module *mod, struct dyn_ftrace *rec)
+ 	if (unlikely(ftrace_disabled))
+ 		return 0;
+ 
++	ret = ftrace_arch_code_modify_prepare();
++	FTRACE_WARN_ON(ret);
++	if (ret)
++		return 0;
++
+ 	ret = ftrace_make_nop(mod, rec, MCOUNT_ADDR);
++	FTRACE_WARN_ON(ftrace_arch_code_modify_post_process());
+ 	if (ret) {
+ 		ftrace_bug(ret, ip);
+-		return 0;
+ 	}
+-	return 1;
++	return ret ? 0 : 1;
+ }
+ 
+ /*
+@@ -4177,8 +4182,10 @@ static int ftrace_process_locs(struct module *mod,
+ 	if (!count)
+ 		return 0;
+ 
++	pax_open_kernel();
+ 	sort(start, count, sizeof(*start),
+ 	     ftrace_cmp_ips, ftrace_swap_ips);
++	pax_close_kernel();
+ 
+ 	start_pg = ftrace_allocate_pages(count);
+ 	if (!start_pg)
+@@ -4890,8 +4897,6 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
+ #ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ 
+ static int ftrace_graph_active;
+-static struct notifier_block ftrace_suspend_notifier;
+-
+ int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace)
+ {
+ 	return 0;
+@@ -4933,7 +4938,7 @@ static int alloc_retstack_tasklist(struct ftrace_ret_stack **ret_stack_list)
+ 
+ 		if (t->ret_stack == NULL) {
+ 			atomic_set(&t->tracing_graph_pause, 0);
+-			atomic_set(&t->trace_overrun, 0);
++			atomic_set_unchecked(&t->trace_overrun, 0);
+ 			t->curr_ret_stack = -1;
+ 			/* Make sure the tasks see the -1 first: */
+ 			smp_wmb();
+@@ -5067,6 +5072,10 @@ static void update_function_graph_func(void)
+ 		ftrace_graph_entry = ftrace_graph_entry_test;
+ }
+ 
++static struct notifier_block ftrace_suspend_notifier = {
++	.notifier_call = ftrace_suspend_notifier_call
++};
++
+ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
+ 			trace_func_graph_ent_t entryfunc)
+ {
+@@ -5080,7 +5089,6 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
+ 		goto out;
+ 	}
+ 
+-	ftrace_suspend_notifier.notifier_call = ftrace_suspend_notifier_call;
+ 	register_pm_notifier(&ftrace_suspend_notifier);
+ 
+ 	ftrace_graph_active++;
+@@ -5134,7 +5142,7 @@ static void
+ graph_init_task(struct task_struct *t, struct ftrace_ret_stack *ret_stack)
+ {
+ 	atomic_set(&t->tracing_graph_pause, 0);
+-	atomic_set(&t->trace_overrun, 0);
++	atomic_set_unchecked(&t->trace_overrun, 0);
+ 	t->ftrace_timestamp = 0;
+ 	/* make curr_ret_stack visible before we add the ret_stack */
+ 	smp_wmb();
+diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
+index da41de9..7f9f568 100644
+--- a/kernel/trace/ring_buffer.c
++++ b/kernel/trace/ring_buffer.c
+@@ -352,9 +352,9 @@ struct buffer_data_page {
+  */
+ struct buffer_page {
+ 	struct list_head list;		/* list of buffer pages */
+-	local_t		 write;		/* index for next write */
++	local_unchecked_t	 write;		/* index for next write */
+ 	unsigned	 read;		/* index for next read */
+-	local_t		 entries;	/* entries on this page */
++	local_unchecked_t	 entries;	/* entries on this page */
+ 	unsigned long	 real_end;	/* real end of data */
+ 	struct buffer_data_page *page;	/* Actual data page */
+ };
+@@ -473,11 +473,11 @@ struct ring_buffer_per_cpu {
+ 	unsigned long			last_overrun;
+ 	local_t				entries_bytes;
+ 	local_t				entries;
+-	local_t				overrun;
+-	local_t				commit_overrun;
+-	local_t				dropped_events;
++	local_unchecked_t		overrun;
++	local_unchecked_t		commit_overrun;
++	local_unchecked_t		dropped_events;
+ 	local_t				committing;
+-	local_t				commits;
++	local_unchecked_t		commits;
+ 	unsigned long			read;
+ 	unsigned long			read_bytes;
+ 	u64				write_stamp;
+@@ -1005,8 +1005,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
+ 	 *
+ 	 * We add a counter to the write field to denote this.
+ 	 */
+-	old_write = local_add_return(RB_WRITE_INTCNT, &next_page->write);
+-	old_entries = local_add_return(RB_WRITE_INTCNT, &next_page->entries);
++	old_write = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->write);
++	old_entries = local_add_return_unchecked(RB_WRITE_INTCNT, &next_page->entries);
+ 
+ 	/*
+ 	 * Just make sure we have seen our old_write and synchronize
+@@ -1034,8 +1034,8 @@ static int rb_tail_page_update(struct ring_buffer_per_cpu *cpu_buffer,
+ 		 * cmpxchg to only update if an interrupt did not already
+ 		 * do it for us. If the cmpxchg fails, we don't care.
+ 		 */
+-		(void)local_cmpxchg(&next_page->write, old_write, val);
+-		(void)local_cmpxchg(&next_page->entries, old_entries, eval);
++		(void)local_cmpxchg_unchecked(&next_page->write, old_write, val);
++		(void)local_cmpxchg_unchecked(&next_page->entries, old_entries, eval);
+ 
+ 		/*
+ 		 * No need to worry about races with clearing out the commit.
+@@ -1399,12 +1399,12 @@ static void rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer);
+ 
+ static inline unsigned long rb_page_entries(struct buffer_page *bpage)
+ {
+-	return local_read(&bpage->entries) & RB_WRITE_MASK;
++	return local_read_unchecked(&bpage->entries) & RB_WRITE_MASK;
+ }
+ 
+ static inline unsigned long rb_page_write(struct buffer_page *bpage)
+ {
+-	return local_read(&bpage->write) & RB_WRITE_MASK;
++	return local_read_unchecked(&bpage->write) & RB_WRITE_MASK;
+ }
+ 
+ static int
+@@ -1499,7 +1499,7 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned int nr_pages)
+ 			 * bytes consumed in ring buffer from here.
+ 			 * Increment overrun to account for the lost events.
+ 			 */
+-			local_add(page_entries, &cpu_buffer->overrun);
++			local_add_unchecked(page_entries, &cpu_buffer->overrun);
+ 			local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
+ 		}
+ 
+@@ -2077,7 +2077,7 @@ rb_handle_head_page(struct ring_buffer_per_cpu *cpu_buffer,
+ 		 * it is our responsibility to update
+ 		 * the counters.
+ 		 */
+-		local_add(entries, &cpu_buffer->overrun);
++		local_add_unchecked(entries, &cpu_buffer->overrun);
+ 		local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes);
+ 
+ 		/*
+@@ -2227,7 +2227,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
+ 		if (tail == BUF_PAGE_SIZE)
+ 			tail_page->real_end = 0;
+ 
+-		local_sub(length, &tail_page->write);
++		local_sub_unchecked(length, &tail_page->write);
+ 		return;
+ 	}
+ 
+@@ -2262,7 +2262,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
+ 		rb_event_set_padding(event);
+ 
+ 		/* Set the write back to the previous setting */
+-		local_sub(length, &tail_page->write);
++		local_sub_unchecked(length, &tail_page->write);
+ 		return;
+ 	}
+ 
+@@ -2274,7 +2274,7 @@ rb_reset_tail(struct ring_buffer_per_cpu *cpu_buffer,
+ 
+ 	/* Set write to end of buffer */
+ 	length = (tail + length) - BUF_PAGE_SIZE;
+-	local_sub(length, &tail_page->write);
++	local_sub_unchecked(length, &tail_page->write);
+ }
+ 
+ /*
+@@ -2300,7 +2300,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
+ 	 * about it.
+ 	 */
+ 	if (unlikely(next_page == commit_page)) {
+-		local_inc(&cpu_buffer->commit_overrun);
++		local_inc_unchecked(&cpu_buffer->commit_overrun);
+ 		goto out_reset;
+ 	}
+ 
+@@ -2330,7 +2330,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
+ 			 * this is easy, just stop here.
+ 			 */
+ 			if (!(buffer->flags & RB_FL_OVERWRITE)) {
+-				local_inc(&cpu_buffer->dropped_events);
++				local_inc_unchecked(&cpu_buffer->dropped_events);
+ 				goto out_reset;
+ 			}
+ 
+@@ -2356,7 +2356,7 @@ rb_move_tail(struct ring_buffer_per_cpu *cpu_buffer,
+ 				      cpu_buffer->tail_page) &&
+ 				     (cpu_buffer->commit_page ==
+ 				      cpu_buffer->reader_page))) {
+-				local_inc(&cpu_buffer->commit_overrun);
++				local_inc_unchecked(&cpu_buffer->commit_overrun);
+ 				goto out_reset;
+ 			}
+ 		}
+@@ -2404,7 +2404,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
+ 		length += RB_LEN_TIME_EXTEND;
+ 
+ 	tail_page = cpu_buffer->tail_page;
+-	write = local_add_return(length, &tail_page->write);
++	write = local_add_return_unchecked(length, &tail_page->write);
+ 
+ 	/* set write to only the index of the write */
+ 	write &= RB_WRITE_MASK;
+@@ -2428,7 +2428,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
+ 	kmemcheck_annotate_bitfield(event, bitfield);
+ 	rb_update_event(cpu_buffer, event, length, add_timestamp, delta);
+ 
+-	local_inc(&tail_page->entries);
++	local_inc_unchecked(&tail_page->entries);
+ 
+ 	/*
+ 	 * If this is the first commit on the page, then update
+@@ -2461,7 +2461,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
+ 
+ 	if (bpage->page == (void *)addr && rb_page_write(bpage) == old_index) {
+ 		unsigned long write_mask =
+-			local_read(&bpage->write) & ~RB_WRITE_MASK;
++			local_read_unchecked(&bpage->write) & ~RB_WRITE_MASK;
+ 		unsigned long event_length = rb_event_length(event);
+ 		/*
+ 		 * This is on the tail page. It is possible that
+@@ -2471,7 +2471,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
+ 		 */
+ 		old_index += write_mask;
+ 		new_index += write_mask;
+-		index = local_cmpxchg(&bpage->write, old_index, new_index);
++		index = local_cmpxchg_unchecked(&bpage->write, old_index, new_index);
+ 		if (index == old_index) {
+ 			/* update counters */
+ 			local_sub(event_length, &cpu_buffer->entries_bytes);
+@@ -2486,7 +2486,7 @@ rb_try_to_discard(struct ring_buffer_per_cpu *cpu_buffer,
+ static void rb_start_commit(struct ring_buffer_per_cpu *cpu_buffer)
+ {
+ 	local_inc(&cpu_buffer->committing);
+-	local_inc(&cpu_buffer->commits);
++	local_inc_unchecked(&cpu_buffer->commits);
+ }
+ 
+ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
+@@ -2498,7 +2498,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
+ 		return;
+ 
+  again:
+-	commits = local_read(&cpu_buffer->commits);
++	commits = local_read_unchecked(&cpu_buffer->commits);
+ 	/* synchronize with interrupts */
+ 	barrier();
+ 	if (local_read(&cpu_buffer->committing) == 1)
+@@ -2514,7 +2514,7 @@ static inline void rb_end_commit(struct ring_buffer_per_cpu *cpu_buffer)
+ 	 * updating of the commit page and the clearing of the
+ 	 * committing counter.
+ 	 */
+-	if (unlikely(local_read(&cpu_buffer->commits) != commits) &&
++	if (unlikely(local_read_unchecked(&cpu_buffer->commits) != commits) &&
+ 	    !local_read(&cpu_buffer->committing)) {
+ 		local_inc(&cpu_buffer->committing);
+ 		goto again;
+@@ -2544,7 +2544,7 @@ rb_reserve_next_event(struct ring_buffer *buffer,
+ 	barrier();
+ 	if (unlikely(ACCESS_ONCE(cpu_buffer->buffer) != buffer)) {
+ 		local_dec(&cpu_buffer->committing);
+-		local_dec(&cpu_buffer->commits);
++		local_dec_unchecked(&cpu_buffer->commits);
+ 		return NULL;
+ 	}
+ #endif
+@@ -2862,7 +2862,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
+ 
+ 	/* Do the likely case first */
+ 	if (likely(bpage->page == (void *)addr)) {
+-		local_dec(&bpage->entries);
++		local_dec_unchecked(&bpage->entries);
+ 		return;
+ 	}
+ 
+@@ -2874,7 +2874,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
+ 	start = bpage;
+ 	do {
+ 		if (bpage->page == (void *)addr) {
+-			local_dec(&bpage->entries);
++			local_dec_unchecked(&bpage->entries);
+ 			return;
+ 		}
+ 		rb_inc_page(cpu_buffer, &bpage);
+@@ -3158,7 +3158,7 @@ static inline unsigned long
+ rb_num_of_entries(struct ring_buffer_per_cpu *cpu_buffer)
+ {
+ 	return local_read(&cpu_buffer->entries) -
+-		(local_read(&cpu_buffer->overrun) + cpu_buffer->read);
++		(local_read_unchecked(&cpu_buffer->overrun) + cpu_buffer->read);
+ }
+ 
+ /**
+@@ -3247,7 +3247,7 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu)
+ 		return 0;
+ 
+ 	cpu_buffer = buffer->buffers[cpu];
+-	ret = local_read(&cpu_buffer->overrun);
++	ret = local_read_unchecked(&cpu_buffer->overrun);
+ 
+ 	return ret;
+ }
+@@ -3270,7 +3270,7 @@ ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu)
+ 		return 0;
+ 
+ 	cpu_buffer = buffer->buffers[cpu];
+-	ret = local_read(&cpu_buffer->commit_overrun);
++	ret = local_read_unchecked(&cpu_buffer->commit_overrun);
+ 
+ 	return ret;
+ }
+@@ -3292,7 +3292,7 @@ ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu)
+ 		return 0;
+ 
+ 	cpu_buffer = buffer->buffers[cpu];
+-	ret = local_read(&cpu_buffer->dropped_events);
++	ret = local_read_unchecked(&cpu_buffer->dropped_events);
+ 
+ 	return ret;
+ }
+@@ -3355,7 +3355,7 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer)
+ 	/* if you care about this being correct, lock the buffer */
+ 	for_each_buffer_cpu(buffer, cpu) {
+ 		cpu_buffer = buffer->buffers[cpu];
+-		overruns += local_read(&cpu_buffer->overrun);
++		overruns += local_read_unchecked(&cpu_buffer->overrun);
+ 	}
+ 
+ 	return overruns;
+@@ -3526,8 +3526,8 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
+ 	/*
+ 	 * Reset the reader page to size zero.
+ 	 */
+-	local_set(&cpu_buffer->reader_page->write, 0);
+-	local_set(&cpu_buffer->reader_page->entries, 0);
++	local_set_unchecked(&cpu_buffer->reader_page->write, 0);
++	local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
+ 	local_set(&cpu_buffer->reader_page->page->commit, 0);
+ 	cpu_buffer->reader_page->real_end = 0;
+ 
+@@ -3561,7 +3561,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
+ 	 * want to compare with the last_overrun.
+ 	 */
+ 	smp_mb();
+-	overwrite = local_read(&(cpu_buffer->overrun));
++	overwrite = local_read_unchecked(&(cpu_buffer->overrun));
+ 
+ 	/*
+ 	 * Here's the tricky part.
+@@ -4133,8 +4133,8 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
+ 
+ 	cpu_buffer->head_page
+ 		= list_entry(cpu_buffer->pages, struct buffer_page, list);
+-	local_set(&cpu_buffer->head_page->write, 0);
+-	local_set(&cpu_buffer->head_page->entries, 0);
++	local_set_unchecked(&cpu_buffer->head_page->write, 0);
++	local_set_unchecked(&cpu_buffer->head_page->entries, 0);
+ 	local_set(&cpu_buffer->head_page->page->commit, 0);
+ 
+ 	cpu_buffer->head_page->read = 0;
+@@ -4144,18 +4144,18 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
+ 
+ 	INIT_LIST_HEAD(&cpu_buffer->reader_page->list);
+ 	INIT_LIST_HEAD(&cpu_buffer->new_pages);
+-	local_set(&cpu_buffer->reader_page->write, 0);
+-	local_set(&cpu_buffer->reader_page->entries, 0);
++	local_set_unchecked(&cpu_buffer->reader_page->write, 0);
++	local_set_unchecked(&cpu_buffer->reader_page->entries, 0);
+ 	local_set(&cpu_buffer->reader_page->page->commit, 0);
+ 	cpu_buffer->reader_page->read = 0;
+ 
+ 	local_set(&cpu_buffer->entries_bytes, 0);
+-	local_set(&cpu_buffer->overrun, 0);
+-	local_set(&cpu_buffer->commit_overrun, 0);
+-	local_set(&cpu_buffer->dropped_events, 0);
++	local_set_unchecked(&cpu_buffer->overrun, 0);
++	local_set_unchecked(&cpu_buffer->commit_overrun, 0);
++	local_set_unchecked(&cpu_buffer->dropped_events, 0);
+ 	local_set(&cpu_buffer->entries, 0);
+ 	local_set(&cpu_buffer->committing, 0);
+-	local_set(&cpu_buffer->commits, 0);
++	local_set_unchecked(&cpu_buffer->commits, 0);
+ 	cpu_buffer->read = 0;
+ 	cpu_buffer->read_bytes = 0;
+ 
+@@ -4556,8 +4556,8 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
+ 		rb_init_page(bpage);
+ 		bpage = reader->page;
+ 		reader->page = *data_page;
+-		local_set(&reader->write, 0);
+-		local_set(&reader->entries, 0);
++		local_set_unchecked(&reader->write, 0);
++		local_set_unchecked(&reader->entries, 0);
+ 		reader->read = 0;
+ 		*data_page = bpage;
+ 
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index a2d62b3..1997260 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -3412,7 +3412,7 @@ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
+ 	return 0;
+ }
+ 
+-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled)
++int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled)
+ {
+ 	/* do nothing if flag is already set */
+ 	if (!!(trace_flags & mask) == !!enabled)
+diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
+index c8bd809..33d7539 100644
+--- a/kernel/trace/trace.h
++++ b/kernel/trace/trace.h
+@@ -1233,7 +1233,7 @@ extern const char *__stop___tracepoint_str[];
+ void trace_printk_init_buffers(void);
+ void trace_printk_start_comm(void);
+ int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
+-int set_tracer_flag(struct trace_array *tr, unsigned int mask, int enabled);
++int set_tracer_flag(struct trace_array *tr, unsigned long mask, int enabled);
+ 
+ /*
+  * Normal trace_printk() and friends allocates special buffers
+diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c
+index 57b67b1..66082a9 100644
+--- a/kernel/trace/trace_clock.c
++++ b/kernel/trace/trace_clock.c
+@@ -124,7 +124,7 @@ u64 notrace trace_clock_global(void)
+ 	return now;
+ }
+ 
+-static atomic64_t trace_counter;
++static atomic64_unchecked_t trace_counter;
+ 
+ /*
+  * trace_clock_counter(): simply an atomic counter.
+@@ -133,5 +133,5 @@ static atomic64_t trace_counter;
+  */
+ u64 notrace trace_clock_counter(void)
+ {
+-	return atomic64_add_return(1, &trace_counter);
++	return atomic64_inc_return_unchecked(&trace_counter);
+ }
+diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
+index c6646a5..574b47c 100644
+--- a/kernel/trace/trace_events.c
++++ b/kernel/trace/trace_events.c
+@@ -1682,7 +1682,6 @@ __trace_early_add_new_event(struct ftrace_event_call *call,
+ 	return 0;
+ }
+ 
+-struct ftrace_module_file_ops;
+ static void __add_event_to_tracers(struct ftrace_event_call *call);
+ 
+ /* Add an additional event_call dynamically */
+diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
+index 8a86319..32ef21b 100644
+--- a/kernel/trace/trace_events_filter.c
++++ b/kernel/trace/trace_events_filter.c
+@@ -1399,19 +1399,27 @@ static int check_preds(struct filter_parse_state *ps)
+ {
+ 	int n_normal_preds = 0, n_logical_preds = 0;
+ 	struct postfix_elt *elt;
++	int cnt = 0;
+ 
+ 	list_for_each_entry(elt, &ps->postfix, list) {
+-		if (elt->op == OP_NONE)
++		if (elt->op == OP_NONE) {
++			cnt++;
+ 			continue;
++		}
+ 
+ 		if (elt->op == OP_AND || elt->op == OP_OR) {
+ 			n_logical_preds++;
++			cnt--;
+ 			continue;
+ 		}
++		// OP_NOT is not supported in this kernel, will get
++		// a reject here when it's backported
++		cnt--;
+ 		n_normal_preds++;
++		WARN_ON_ONCE(cnt < 0);
+ 	}
+ 
+-	if (!n_normal_preds || n_logical_preds >= n_normal_preds) {
++	if (cnt != 1 || !n_normal_preds || n_logical_preds >= n_normal_preds) {
+ 		parse_error(ps, FILT_ERR_INVALID_FILTER, 0);
+ 		return -EINVAL;
+ 	}
+diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
+index 0b99120..881174f 100644
+--- a/kernel/trace/trace_functions_graph.c
++++ b/kernel/trace/trace_functions_graph.c
+@@ -110,7 +110,7 @@ ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth,
+ 
+ 	/* The return trace stack is full */
+ 	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
+-		atomic_inc(&current->trace_overrun);
++		atomic_inc_unchecked(&current->trace_overrun);
+ 		return -EBUSY;
+ 	}
+ 
+@@ -207,7 +207,7 @@ ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,
+ 	*ret = current->ret_stack[index].ret;
+ 	trace->func = current->ret_stack[index].func;
+ 	trace->calltime = current->ret_stack[index].calltime;
+-	trace->overrun = atomic_read(&current->trace_overrun);
++	trace->overrun = atomic_read_unchecked(&current->trace_overrun);
+ 	trace->depth = index;
+ }
+ 
+diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
+index 0abd9b8..6a663a2 100644
+--- a/kernel/trace/trace_mmiotrace.c
++++ b/kernel/trace/trace_mmiotrace.c
+@@ -24,7 +24,7 @@ struct header_iter {
+ static struct trace_array *mmio_trace_array;
+ static bool overrun_detected;
+ static unsigned long prev_overruns;
+-static atomic_t dropped_count;
++static atomic_unchecked_t dropped_count;
+ 
+ static void mmio_reset_data(struct trace_array *tr)
+ {
+@@ -127,7 +127,7 @@ static void mmio_close(struct trace_iterator *iter)
+ 
+ static unsigned long count_overruns(struct trace_iterator *iter)
+ {
+-	unsigned long cnt = atomic_xchg(&dropped_count, 0);
++	unsigned long cnt = atomic_xchg_unchecked(&dropped_count, 0);
+ 	unsigned long over = ring_buffer_overruns(iter->trace_buffer->buffer);
+ 
+ 	if (over > prev_overruns)
+@@ -317,7 +317,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
+ 	event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_RW,
+ 					  sizeof(*entry), 0, pc);
+ 	if (!event) {
+-		atomic_inc(&dropped_count);
++		atomic_inc_unchecked(&dropped_count);
+ 		return;
+ 	}
+ 	entry	= ring_buffer_event_data(event);
+@@ -347,7 +347,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
+ 	event = trace_buffer_lock_reserve(buffer, TRACE_MMIO_MAP,
+ 					  sizeof(*entry), 0, pc);
+ 	if (!event) {
+-		atomic_inc(&dropped_count);
++		atomic_inc_unchecked(&dropped_count);
+ 		return;
+ 	}
+ 	entry	= ring_buffer_event_data(event);
+diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
+index ed32284..884d6c3 100644
+--- a/kernel/trace/trace_output.c
++++ b/kernel/trace/trace_output.c
+@@ -294,7 +294,7 @@ int trace_seq_path(struct trace_seq *s, const struct path *path)
+ 
+ 	p = d_path(path, s->buffer + s->len, PAGE_SIZE - s->len);
+ 	if (!IS_ERR(p)) {
+-		p = mangle_path(s->buffer + s->len, p, "\n");
++		p = mangle_path(s->buffer + s->len, p, "\n\\");
+ 		if (p) {
+ 			s->len = p - s->buffer;
+ 			return 1;
+@@ -908,14 +908,16 @@ int register_ftrace_event(struct trace_event *event)
+ 			goto out;
+ 	}
+ 
++	pax_open_kernel();
+ 	if (event->funcs->trace == NULL)
+-		event->funcs->trace = trace_nop_print;
++		*(void **)&event->funcs->trace = trace_nop_print;
+ 	if (event->funcs->raw == NULL)
+-		event->funcs->raw = trace_nop_print;
++		*(void **)&event->funcs->raw = trace_nop_print;
+ 	if (event->funcs->hex == NULL)
+-		event->funcs->hex = trace_nop_print;
++		*(void **)&event->funcs->hex = trace_nop_print;
+ 	if (event->funcs->binary == NULL)
+-		event->funcs->binary = trace_nop_print;
++		*(void **)&event->funcs->binary = trace_nop_print;
++	pax_close_kernel();
+ 
+ 	key = event->type & (EVENT_HASHSIZE - 1);
+ 
+diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
+index e6be585..d73ae5e 100644
+--- a/kernel/trace/trace_stack.c
++++ b/kernel/trace/trace_stack.c
+@@ -68,7 +68,7 @@ check_stack(unsigned long ip, unsigned long *stack)
+ 		return;
+ 
+ 	/* we do not handle interrupt stacks yet */
+-	if (!object_is_on_stack(stack))
++	if (!object_starts_on_stack(stack))
+ 		return;
+ 
+ 	local_irq_save(flags);
+diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
+index 7e3cd7a..5156a5fe 100644
+--- a/kernel/trace/trace_syscalls.c
++++ b/kernel/trace/trace_syscalls.c
+@@ -602,6 +602,8 @@ static int perf_sysenter_enable(struct ftrace_event_call *call)
+ 	int num;
+ 
+ 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
++	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
++		return -EINVAL;
+ 
+ 	mutex_lock(&syscall_trace_lock);
+ 	if (!sys_perf_refcount_enter)
+@@ -622,6 +624,8 @@ static void perf_sysenter_disable(struct ftrace_event_call *call)
+ 	int num;
+ 
+ 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
++	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
++		return;
+ 
+ 	mutex_lock(&syscall_trace_lock);
+ 	sys_perf_refcount_enter--;
+@@ -674,6 +678,8 @@ static int perf_sysexit_enable(struct ftrace_event_call *call)
+ 	int num;
+ 
+ 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
++	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
++		return -EINVAL;
+ 
+ 	mutex_lock(&syscall_trace_lock);
+ 	if (!sys_perf_refcount_exit)
+@@ -694,6 +700,8 @@ static void perf_sysexit_disable(struct ftrace_event_call *call)
+ 	int num;
+ 
+ 	num = ((struct syscall_metadata *)call->data)->syscall_nr;
++	if (WARN_ON_ONCE(num < 0 || num >= NR_syscalls))
++		return;
+ 
+ 	mutex_lock(&syscall_trace_lock);
+ 	sys_perf_refcount_exit--;
+diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
+index 153971e..ac4be58 100644
+--- a/kernel/user_namespace.c
++++ b/kernel/user_namespace.c
+@@ -83,6 +83,21 @@ int create_user_ns(struct cred *new)
+ 	    !kgid_has_mapping(parent_ns, group))
+ 		return -EPERM;
+ 
++#ifdef CONFIG_GRKERNSEC
++	/*
++	 * This doesn't really inspire confidence:
++	 * http://marc.info/?l=linux-kernel&m=135543612731939&w=2
++	 * http://marc.info/?l=linux-kernel&m=135545831607095&w=2
++	 * Increases kernel attack surface in areas developers
++	 * previously cared little about ("low importance due
++	 * to requiring "root" capability")
++	 * To be removed when this code receives *proper* review
++	 */
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SETUID) ||
++			!capable(CAP_SETGID))
++		return -EPERM;
++#endif
++
+ 	ns = kmem_cache_zalloc(user_ns_cachep, GFP_KERNEL);
+ 	if (!ns)
+ 		return -ENOMEM;
+@@ -966,7 +981,7 @@ static int userns_install(struct nsproxy *nsproxy, void *ns)
+ 	if (atomic_read(&current->mm->mm_users) > 1)
+ 		return -EINVAL;
+ 
+-	if (current->fs->users != 1)
++	if (atomic_read(&current->fs->users) != 1)
+ 		return -EINVAL;
+ 
+ 	if (!ns_capable(user_ns, CAP_SYS_ADMIN))
+diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
+index 4f69f9a..7c6f8f8 100644
+--- a/kernel/utsname_sysctl.c
++++ b/kernel/utsname_sysctl.c
+@@ -47,7 +47,7 @@ static void put_uts(ctl_table *table, int write, void *which)
+ static int proc_do_uts_string(ctl_table *table, int write,
+ 		  void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table uts_table;
++	ctl_table_no_const uts_table;
+ 	int r;
+ 	memcpy(&uts_table, table, sizeof(uts_table));
+ 	uts_table.data = get_uts(table, write);
+diff --git a/kernel/watchdog.c b/kernel/watchdog.c
+index c9b6f01..37781d9 100644
+--- a/kernel/watchdog.c
++++ b/kernel/watchdog.c
+@@ -475,7 +475,7 @@ static int watchdog_nmi_enable(unsigned int cpu) { return 0; }
+ static void watchdog_nmi_disable(unsigned int cpu) { return; }
+ #endif /* CONFIG_HARDLOCKUP_DETECTOR */
+ 
+-static struct smp_hotplug_thread watchdog_threads = {
++static struct smp_hotplug_thread watchdog_threads __read_only = {
+ 	.store			= &softlockup_watchdog,
+ 	.thread_should_run	= watchdog_should_run,
+ 	.thread_fn		= watchdog,
+diff --git a/kernel/workqueue.c b/kernel/workqueue.c
+index 423c9e3..67fa411 100644
+--- a/kernel/workqueue.c
++++ b/kernel/workqueue.c
+@@ -4735,7 +4735,7 @@ static void rebind_workers(struct worker_pool *pool)
+ 		WARN_ON_ONCE(!(worker_flags & WORKER_UNBOUND));
+ 		worker_flags |= WORKER_REBOUND;
+ 		worker_flags &= ~WORKER_UNBOUND;
+-		ACCESS_ONCE(worker->flags) = worker_flags;
++		ACCESS_ONCE_RW(worker->flags) = worker_flags;
+ 	}
+ 
+ 	spin_unlock_irq(&pool->lock);
+diff --git a/lib/Kconfig b/lib/Kconfig
+index 991c98b..88061cf 100644
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -51,6 +51,9 @@ config PERCPU_RWSEM
+ config ARCH_USE_CMPXCHG_LOCKREF
+ 	bool
+ 
++config ARCH_HAS_FAST_MULTIPLIER
++	bool
++
+ config CRC_CCITT
+ 	tristate "CRC-CCITT functions"
+ 	help
+diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
+index a48abea..e108def 100644
+--- a/lib/Kconfig.debug
++++ b/lib/Kconfig.debug
+@@ -854,7 +854,7 @@ config DEBUG_MUTEXES
+ 
+ config DEBUG_WW_MUTEX_SLOWPATH
+ 	bool "Wait/wound mutex debugging: Slowpath testing"
+-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
++	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
+ 	select DEBUG_LOCK_ALLOC
+ 	select DEBUG_SPINLOCK
+ 	select DEBUG_MUTEXES
+@@ -867,7 +867,7 @@ config DEBUG_WW_MUTEX_SLOWPATH
+ 
+ config DEBUG_LOCK_ALLOC
+ 	bool "Lock debugging: detect incorrect freeing of live locks"
+-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
++	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
+ 	select DEBUG_SPINLOCK
+ 	select DEBUG_MUTEXES
+ 	select LOCKDEP
+@@ -881,7 +881,7 @@ config DEBUG_LOCK_ALLOC
+ 
+ config PROVE_LOCKING
+ 	bool "Lock debugging: prove locking correctness"
+-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
++	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
+ 	select LOCKDEP
+ 	select DEBUG_SPINLOCK
+ 	select DEBUG_MUTEXES
+@@ -932,7 +932,7 @@ config LOCKDEP
+ 
+ config LOCK_STAT
+ 	bool "Lock usage statistics"
+-	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
++	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT && !PAX_CONSTIFY_PLUGIN
+ 	select LOCKDEP
+ 	select DEBUG_SPINLOCK
+ 	select DEBUG_MUTEXES
+@@ -1394,6 +1394,7 @@ config LATENCYTOP
+ 	depends on DEBUG_KERNEL
+ 	depends on STACKTRACE_SUPPORT
+ 	depends on PROC_FS
++	depends on !GRKERNSEC_HIDESYM
+ 	select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC
+ 	select KALLSYMS
+ 	select KALLSYMS_ALL
+@@ -1410,7 +1411,7 @@ config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+ config DEBUG_STRICT_USER_COPY_CHECKS
+ 	bool "Strict user copy size checks"
+ 	depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+-	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
++	depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING && !PAX_SIZE_OVERFLOW
+ 	help
+ 	  Enabling this option turns a certain set of sanity checks for user
+ 	  copy operations into compile time failures.
+@@ -1529,7 +1530,7 @@ endmenu # runtime tests
+ 
+ config PROVIDE_OHCI1394_DMA_INIT
+ 	bool "Remote debugging over FireWire early on boot"
+-	depends on PCI && X86
++	depends on PCI && X86 && !GRKERNSEC
+ 	help
+ 	  If you want to debug problems which hang or crash the kernel early
+ 	  on boot and the crashing machine has a FireWire port, you can use
+diff --git a/lib/Makefile b/lib/Makefile
+index 48140e3..de854e5 100644
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -52,7 +52,7 @@ obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
+ obj-$(CONFIG_BTREE) += btree.o
+ obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
+ obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
+-obj-$(CONFIG_DEBUG_LIST) += list_debug.o
++obj-y += list_debug.o
+ obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
+ 
+ ifneq ($(CONFIG_HAVE_DEC_LOCK),y)
+diff --git a/lib/average.c b/lib/average.c
+index 114d1be..ab0350c 100644
+--- a/lib/average.c
++++ b/lib/average.c
+@@ -55,7 +55,7 @@ struct ewma *ewma_add(struct ewma *avg, unsigned long val)
+ {
+ 	unsigned long internal = ACCESS_ONCE(avg->internal);
+ 
+-	ACCESS_ONCE(avg->internal) = internal ?
++	ACCESS_ONCE_RW(avg->internal) = internal ?
+ 		(((internal << avg->weight) - internal) +
+ 			(val << avg->factor)) >> avg->weight :
+ 		(val << avg->factor);
+diff --git a/lib/bitmap.c b/lib/bitmap.c
+index e5c4ebe..9078e42 100644
+--- a/lib/bitmap.c
++++ b/lib/bitmap.c
+@@ -426,7 +426,7 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
+ {
+ 	int c, old_c, totaldigits, ndigits, nchunks, nbits;
+ 	u32 chunk;
+-	const char __user __force *ubuf = (const char __user __force *)buf;
++	const char __user *ubuf = (const char __force_user *)buf;
+ 
+ 	bitmap_zero(maskp, nmaskbits);
+ 
+@@ -511,7 +511,7 @@ int bitmap_parse_user(const char __user *ubuf,
+ {
+ 	if (!access_ok(VERIFY_READ, ubuf, ulen))
+ 		return -EFAULT;
+-	return __bitmap_parse((const char __force *)ubuf,
++	return __bitmap_parse((const char __force_kernel *)ubuf,
+ 				ulen, 1, maskp, nmaskbits);
+ 
+ }
+@@ -602,7 +602,7 @@ static int __bitmap_parselist(const char *buf, unsigned int buflen,
+ {
+ 	unsigned a, b;
+ 	int c, old_c, totaldigits;
+-	const char __user __force *ubuf = (const char __user __force *)buf;
++	const char __user *ubuf = (const char __force_user *)buf;
+ 	int exp_digit, in_range;
+ 
+ 	totaldigits = c = 0;
+@@ -702,7 +702,7 @@ int bitmap_parselist_user(const char __user *ubuf,
+ {
+ 	if (!access_ok(VERIFY_READ, ubuf, ulen))
+ 		return -EFAULT;
+-	return __bitmap_parselist((const char __force *)ubuf,
++	return __bitmap_parselist((const char __force_kernel *)ubuf,
+ 					ulen, 1, maskp, nmaskbits);
+ }
+ EXPORT_SYMBOL(bitmap_parselist_user);
+diff --git a/lib/bug.c b/lib/bug.c
+index 1686034..a9c00c8 100644
+--- a/lib/bug.c
++++ b/lib/bug.c
+@@ -134,6 +134,8 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
+ 		return BUG_TRAP_TYPE_NONE;
+ 
+ 	bug = find_bug(bugaddr);
++	if (!bug)
++		return BUG_TRAP_TYPE_NONE;
+ 
+ 	file = NULL;
+ 	line = 0;
+diff --git a/lib/debugobjects.c b/lib/debugobjects.c
+index e0731c3..ad66444 100644
+--- a/lib/debugobjects.c
++++ b/lib/debugobjects.c
+@@ -286,7 +286,7 @@ static void debug_object_is_on_stack(void *addr, int onstack)
+ 	if (limit > 4)
+ 		return;
+ 
+-	is_on_stack = object_is_on_stack(addr);
++	is_on_stack = object_starts_on_stack(addr);
+ 	if (is_on_stack == onstack)
+ 		return;
+ 
+diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
+index f504027..97a15c0 100644
+--- a/lib/decompress_bunzip2.c
++++ b/lib/decompress_bunzip2.c
+@@ -665,7 +665,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
+ 
+ 	/* Fourth byte (ascii '1'-'9'), indicates block size in units of 100k of
+ 	   uncompressed data.  Allocate intermediate buffer for block. */
+-	bd->dbufSize = 100000*(i-BZh0);
++	i -= BZh0;
++	bd->dbufSize = 100000 * i;
+ 
+ 	bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
+ 	if (!bd->dbuf)
+diff --git a/lib/devres.c b/lib/devres.c
+index 8235331..5881053 100644
+--- a/lib/devres.c
++++ b/lib/devres.c
+@@ -81,7 +81,7 @@ EXPORT_SYMBOL(devm_ioremap_nocache);
+ void devm_iounmap(struct device *dev, void __iomem *addr)
+ {
+ 	WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match,
+-			       (void *)addr));
++			       (void __force *)addr));
+ 	iounmap(addr);
+ }
+ EXPORT_SYMBOL(devm_iounmap);
+@@ -224,7 +224,7 @@ void devm_ioport_unmap(struct device *dev, void __iomem *addr)
+ {
+ 	ioport_unmap(addr);
+ 	WARN_ON(devres_destroy(dev, devm_ioport_map_release,
+-			       devm_ioport_map_match, (void *)addr));
++			       devm_ioport_map_match, (void __force *)addr));
+ }
+ EXPORT_SYMBOL(devm_ioport_unmap);
+ #endif /* CONFIG_HAS_IOPORT */
+diff --git a/lib/div64.c b/lib/div64.c
+index 4382ad7..08aa558 100644
+--- a/lib/div64.c
++++ b/lib/div64.c
+@@ -59,7 +59,7 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
+ EXPORT_SYMBOL(__div64_32);
+ 
+ #ifndef div_s64_rem
+-s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
++s64 __intentional_overflow(-1) div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
+ {
+ 	u64 quotient;
+ 
+@@ -130,7 +130,7 @@ EXPORT_SYMBOL(div64_u64_rem);
+  * 'http://www.hackersdelight.org/HDcode/newCode/divDouble.c.txt'
+  */
+ #ifndef div64_u64
+-u64 div64_u64(u64 dividend, u64 divisor)
++u64 __intentional_overflow(-1) div64_u64(u64 dividend, u64 divisor)
+ {
+ 	u32 high = divisor >> 32;
+ 	u64 quot;
+diff --git a/lib/dma-debug.c b/lib/dma-debug.c
+index 98f2d7e..899da5c 100644
+--- a/lib/dma-debug.c
++++ b/lib/dma-debug.c
+@@ -971,7 +971,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
+ 
+ void dma_debug_add_bus(struct bus_type *bus)
+ {
+-	struct notifier_block *nb;
++	notifier_block_no_const *nb;
+ 
+ 	if (global_disable)
+ 		return;
+@@ -1148,7 +1148,7 @@ static void check_unmap(struct dma_debug_entry *ref)
+ 
+ static void check_for_stack(struct device *dev, void *addr)
+ {
+-	if (object_is_on_stack(addr))
++	if (object_starts_on_stack(addr))
+ 		err_printk(dev, NULL, "DMA-API: device driver maps memory from"
+ 				"stack [addr=%p]\n", addr);
+ }
+diff --git a/lib/hash.c b/lib/hash.c
+index fea973f..386626f 100644
+--- a/lib/hash.c
++++ b/lib/hash.c
+@@ -14,7 +14,7 @@
+ #include <linux/hash.h>
+ #include <linux/cache.h>
+ 
+-static struct fast_hash_ops arch_hash_ops __read_mostly = {
++static struct fast_hash_ops arch_hash_ops __read_only = {
+ 	.hash  = jhash,
+ 	.hash2 = jhash2,
+ };
+diff --git a/lib/hweight.c b/lib/hweight.c
+index b7d81ba..9a5c1f2 100644
+--- a/lib/hweight.c
++++ b/lib/hweight.c
+@@ -11,7 +11,7 @@
+ 
+ unsigned int __sw_hweight32(unsigned int w)
+ {
+-#ifdef ARCH_HAS_FAST_MULTIPLIER
++#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
+ 	w -= (w >> 1) & 0x55555555;
+ 	w =  (w & 0x33333333) + ((w >> 2) & 0x33333333);
+ 	w =  (w + (w >> 4)) & 0x0f0f0f0f;
+@@ -49,7 +49,7 @@ unsigned long __sw_hweight64(__u64 w)
+ 	return __sw_hweight32((unsigned int)(w >> 32)) +
+ 	       __sw_hweight32((unsigned int)w);
+ #elif BITS_PER_LONG == 64
+-#ifdef ARCH_HAS_FAST_MULTIPLIER
++#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
+ 	w -= (w >> 1) & 0x5555555555555555ul;
+ 	w =  (w & 0x3333333333333333ul) + ((w >> 2) & 0x3333333333333333ul);
+ 	w =  (w + (w >> 4)) & 0x0f0f0f0f0f0f0f0ful;
+diff --git a/lib/inflate.c b/lib/inflate.c
+index 013a761..c28f3fc 100644
+--- a/lib/inflate.c
++++ b/lib/inflate.c
+@@ -269,7 +269,7 @@ static void free(void *where)
+ 		malloc_ptr = free_mem_ptr;
+ }
+ #else
+-#define malloc(a) kmalloc(a, GFP_KERNEL)
++#define malloc(a) kmalloc((a), GFP_KERNEL)
+ #define free(a) kfree(a)
+ #endif
+ 
+diff --git a/lib/ioremap.c b/lib/ioremap.c
+index 0c9216c..863bd89 100644
+--- a/lib/ioremap.c
++++ b/lib/ioremap.c
+@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
+ 	unsigned long next;
+ 
+ 	phys_addr -= addr;
+-	pmd = pmd_alloc(&init_mm, pud, addr);
++	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
+ 	if (!pmd)
+ 		return -ENOMEM;
+ 	do {
+@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
+ 	unsigned long next;
+ 
+ 	phys_addr -= addr;
+-	pud = pud_alloc(&init_mm, pgd, addr);
++	pud = pud_alloc_kernel(&init_mm, pgd, addr);
+ 	if (!pud)
+ 		return -ENOMEM;
+ 	do {
+diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
+index bd2bea9..6b3c95e 100644
+--- a/lib/is_single_threaded.c
++++ b/lib/is_single_threaded.c
+@@ -22,6 +22,9 @@ bool current_is_single_threaded(void)
+ 	struct task_struct *p, *t;
+ 	bool ret;
+ 
++	if (!mm)
++		return true;
++
+ 	if (atomic_read(&task->signal->live) != 1)
+ 		return false;
+ 
+diff --git a/lib/kobject.c b/lib/kobject.c
+index cb14aea..8c53cdb 100644
+--- a/lib/kobject.c
++++ b/lib/kobject.c
+@@ -931,9 +931,9 @@ EXPORT_SYMBOL_GPL(kset_create_and_add);
+ 
+ 
+ static DEFINE_SPINLOCK(kobj_ns_type_lock);
+-static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES];
++static const struct kobj_ns_type_operations *kobj_ns_ops_tbl[KOBJ_NS_TYPES] __read_only;
+ 
+-int kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
++int __init kobj_ns_type_register(const struct kobj_ns_type_operations *ops)
+ {
+ 	enum kobj_ns_type type = ops->type;
+ 	int error;
+diff --git a/lib/list_debug.c b/lib/list_debug.c
+index c24c2f7..f0296f4 100644
+--- a/lib/list_debug.c
++++ b/lib/list_debug.c
+@@ -11,7 +11,9 @@
+ #include <linux/bug.h>
+ #include <linux/kernel.h>
+ #include <linux/rculist.h>
++#include <linux/mm.h>
+ 
++#ifdef CONFIG_DEBUG_LIST
+ /*
+  * Insert a new entry between two known consecutive entries.
+  *
+@@ -19,21 +21,40 @@
+  * the prev/next entries already!
+  */
+ 
++static bool __list_add_debug(struct list_head *new,
++			     struct list_head *prev,
++			     struct list_head *next)
++{
++	if (unlikely(next->prev != prev)) {
++		printk(KERN_ERR "list_add corruption. next->prev should be "
++			"prev (%p), but was %p. (next=%p).\n",
++			prev, next->prev, next);
++		BUG();
++		return false;
++	}
++	if (unlikely(prev->next != next)) {
++		printk(KERN_ERR "list_add corruption. prev->next should be "
++			"next (%p), but was %p. (prev=%p).\n",
++			next, prev->next, prev);
++		BUG();
++		return false;
++	}
++	if (unlikely(new == prev || new == next)) {
++		printk(KERN_ERR "list_add double add: new=%p, prev=%p, next=%p.\n",
++			new, prev, next);
++		BUG();
++		return false;
++	}
++	return true;
++}
++
+ void __list_add(struct list_head *new,
+-			      struct list_head *prev,
+-			      struct list_head *next)
++		struct list_head *prev,
++		struct list_head *next)
+ {
+-	WARN(next->prev != prev,
+-		"list_add corruption. next->prev should be "
+-		"prev (%p), but was %p. (next=%p).\n",
+-		prev, next->prev, next);
+-	WARN(prev->next != next,
+-		"list_add corruption. prev->next should be "
+-		"next (%p), but was %p. (prev=%p).\n",
+-		next, prev->next, prev);
+-	WARN(new == prev || new == next,
+-	     "list_add double add: new=%p, prev=%p, next=%p.\n",
+-	     new, prev, next);
++	if (!__list_add_debug(new, prev, next))
++		return;
++
+ 	next->prev = new;
+ 	new->next = next;
+ 	new->prev = prev;
+@@ -41,28 +62,46 @@ void __list_add(struct list_head *new,
+ }
+ EXPORT_SYMBOL(__list_add);
+ 
+-void __list_del_entry(struct list_head *entry)
++static bool __list_del_entry_debug(struct list_head *entry)
+ {
+ 	struct list_head *prev, *next;
+ 
+ 	prev = entry->prev;
+ 	next = entry->next;
+ 
+-	if (WARN(next == LIST_POISON1,
+-		"list_del corruption, %p->next is LIST_POISON1 (%p)\n",
+-		entry, LIST_POISON1) ||
+-	    WARN(prev == LIST_POISON2,
+-		"list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
+-		entry, LIST_POISON2) ||
+-	    WARN(prev->next != entry,
+-		"list_del corruption. prev->next should be %p, "
+-		"but was %p\n", entry, prev->next) ||
+-	    WARN(next->prev != entry,
+-		"list_del corruption. next->prev should be %p, "
+-		"but was %p\n", entry, next->prev))
++	if (unlikely(next == LIST_POISON1)) {
++		printk(KERN_ERR "list_del corruption, %p->next is LIST_POISON1 (%p)\n",
++			entry, LIST_POISON1);
++		BUG();
++		return false;
++	}
++	if (unlikely(prev == LIST_POISON2)) {
++		printk(KERN_ERR "list_del corruption, %p->prev is LIST_POISON2 (%p)\n",
++			entry, LIST_POISON2);
++		BUG();
++		return false;
++	}
++	if (unlikely(entry->prev->next != entry)) {
++		printk(KERN_ERR "list_del corruption. prev->next should be %p, "
++			"but was %p\n", entry, prev->next);
++		BUG();
++		return false;
++	}
++	if (unlikely(entry->next->prev != entry)) {
++		printk(KERN_ERR "list_del corruption. next->prev should be %p, "
++			"but was %p\n", entry, next->prev);
++		BUG();
++		return false;
++	}
++	return true;
++}
++
++void __list_del_entry(struct list_head *entry)
++{
++	if (!__list_del_entry_debug(entry))
+ 		return;
+ 
+-	__list_del(prev, next);
++	__list_del(entry->prev, entry->next);
+ }
+ EXPORT_SYMBOL(__list_del_entry);
+ 
+@@ -86,15 +125,85 @@ EXPORT_SYMBOL(list_del);
+ void __list_add_rcu(struct list_head *new,
+ 		    struct list_head *prev, struct list_head *next)
+ {
+-	WARN(next->prev != prev,
+-		"list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n",
+-		prev, next->prev, next);
+-	WARN(prev->next != next,
+-		"list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n",
+-		next, prev->next, prev);
++	if (!__list_add_debug(new, prev, next))
++		return;
++
+ 	new->next = next;
+ 	new->prev = prev;
+ 	rcu_assign_pointer(list_next_rcu(prev), new);
+ 	next->prev = new;
+ }
+ EXPORT_SYMBOL(__list_add_rcu);
++#endif
++
++void __pax_list_add(struct list_head *new, struct list_head *prev, struct list_head *next)
++{
++#ifdef CONFIG_DEBUG_LIST
++	if (!__list_add_debug(new, prev, next))
++		return;
++#endif
++
++	pax_open_kernel();
++	next->prev = new;
++	new->next = next;
++	new->prev = prev;
++	prev->next = new;
++	pax_close_kernel();
++}
++EXPORT_SYMBOL(__pax_list_add);
++
++void pax_list_del(struct list_head *entry)
++{
++#ifdef CONFIG_DEBUG_LIST
++	if (!__list_del_entry_debug(entry))
++		return;
++#endif
++
++	pax_open_kernel();
++	__list_del(entry->prev, entry->next);
++	entry->next = LIST_POISON1;
++	entry->prev = LIST_POISON2;
++	pax_close_kernel();
++}
++EXPORT_SYMBOL(pax_list_del);
++
++void pax_list_del_init(struct list_head *entry)
++{
++	pax_open_kernel();
++	__list_del(entry->prev, entry->next);
++	INIT_LIST_HEAD(entry);
++	pax_close_kernel();
++}
++EXPORT_SYMBOL(pax_list_del_init);
++
++void __pax_list_add_rcu(struct list_head *new,
++			struct list_head *prev, struct list_head *next)
++{
++#ifdef CONFIG_DEBUG_LIST
++	if (!__list_add_debug(new, prev, next))
++		return;
++#endif
++
++	pax_open_kernel();
++	new->next = next;
++	new->prev = prev;
++	rcu_assign_pointer(list_next_rcu(prev), new);
++	next->prev = new;
++	pax_close_kernel();
++}
++EXPORT_SYMBOL(__pax_list_add_rcu);
++
++void pax_list_del_rcu(struct list_head *entry)
++{
++#ifdef CONFIG_DEBUG_LIST
++	if (!__list_del_entry_debug(entry))
++		return;
++#endif
++
++	pax_open_kernel();
++	__list_del(entry->prev, entry->next);
++	entry->next = LIST_POISON1;
++	entry->prev = LIST_POISON2;
++	pax_close_kernel();
++}
++EXPORT_SYMBOL(pax_list_del_rcu);
+diff --git a/lib/lockref.c b/lib/lockref.c
+index f07a40d..0a445a7 100644
+--- a/lib/lockref.c
++++ b/lib/lockref.c
+@@ -49,13 +49,13 @@
+ void lockref_get(struct lockref *lockref)
+ {
+ 	CMPXCHG_LOOP(
+-		new.count++;
++		__lockref_inc(&new);
+ 	,
+ 		return;
+ 	);
+ 
+ 	spin_lock(&lockref->lock);
+-	lockref->count++;
++	__lockref_inc(lockref);
+ 	spin_unlock(&lockref->lock);
+ }
+ EXPORT_SYMBOL(lockref_get);
+@@ -70,7 +70,7 @@ int lockref_get_not_zero(struct lockref *lockref)
+ 	int retval;
+ 
+ 	CMPXCHG_LOOP(
+-		new.count++;
++		__lockref_inc(&new);
+ 		if (!old.count)
+ 			return 0;
+ 	,
+@@ -80,7 +80,7 @@ int lockref_get_not_zero(struct lockref *lockref)
+ 	spin_lock(&lockref->lock);
+ 	retval = 0;
+ 	if (lockref->count) {
+-		lockref->count++;
++		__lockref_inc(lockref);
+ 		retval = 1;
+ 	}
+ 	spin_unlock(&lockref->lock);
+@@ -97,7 +97,7 @@ EXPORT_SYMBOL(lockref_get_not_zero);
+ int lockref_get_or_lock(struct lockref *lockref)
+ {
+ 	CMPXCHG_LOOP(
+-		new.count++;
++		__lockref_inc(&new);
+ 		if (!old.count)
+ 			break;
+ 	,
+@@ -107,7 +107,7 @@ int lockref_get_or_lock(struct lockref *lockref)
+ 	spin_lock(&lockref->lock);
+ 	if (!lockref->count)
+ 		return 0;
+-	lockref->count++;
++	__lockref_inc(lockref);
+ 	spin_unlock(&lockref->lock);
+ 	return 1;
+ }
+@@ -121,7 +121,7 @@ EXPORT_SYMBOL(lockref_get_or_lock);
+ int lockref_put_or_lock(struct lockref *lockref)
+ {
+ 	CMPXCHG_LOOP(
+-		new.count--;
++		__lockref_dec(&new);
+ 		if (old.count <= 1)
+ 			break;
+ 	,
+@@ -131,7 +131,7 @@ int lockref_put_or_lock(struct lockref *lockref)
+ 	spin_lock(&lockref->lock);
+ 	if (lockref->count <= 1)
+ 		return 0;
+-	lockref->count--;
++	__lockref_dec(lockref);
+ 	spin_unlock(&lockref->lock);
+ 	return 1;
+ }
+@@ -158,7 +158,7 @@ int lockref_get_not_dead(struct lockref *lockref)
+ 	int retval;
+ 
+ 	CMPXCHG_LOOP(
+-		new.count++;
++		__lockref_inc(&new);
+ 		if ((int)old.count < 0)
+ 			return 0;
+ 	,
+@@ -168,7 +168,7 @@ int lockref_get_not_dead(struct lockref *lockref)
+ 	spin_lock(&lockref->lock);
+ 	retval = 0;
+ 	if ((int) lockref->count >= 0) {
+-		lockref->count++;
++		__lockref_inc(lockref);
+ 		retval = 1;
+ 	}
+ 	spin_unlock(&lockref->lock);
+diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
+index aac5114..a89d041 100644
+--- a/lib/mpi/longlong.h
++++ b/lib/mpi/longlong.h
+@@ -639,7 +639,7 @@ do { \
+ 	**************  MIPS  *****************
+ 	***************************************/
+ #if defined(__mips__) && W_TYPE_SIZE == 32
+-#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
++#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
+ #define umul_ppmm(w1, w0, u, v)			\
+ do {						\
+ 	UDItype __ll = (UDItype)(u) * (v);	\
+@@ -671,7 +671,7 @@ do {						\
+ 	**************  MIPS/64  **************
+ 	***************************************/
+ #if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
+-#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
++#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
+ #define umul_ppmm(w1, w0, u, v) \
+ do {									\
+ 	typedef unsigned int __ll_UTItype __attribute__((mode(TI)));	\
+diff --git a/lib/nlattr.c b/lib/nlattr.c
+index 10ad042d..25b47b5 100644
+--- a/lib/nlattr.c
++++ b/lib/nlattr.c
+@@ -274,7 +274,11 @@ int nla_memcpy(void *dest, const struct nlattr *src, int count)
+ {
+ 	int minlen = min_t(int, count, nla_len(src));
+ 
++	BUG_ON(minlen < 0);
++
+ 	memcpy(dest, nla_data(src), minlen);
++	if (count > minlen)
++		memset(dest + minlen, 0, count - minlen);
+ 
+ 	return minlen;
+ }
+diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
+index 963b703..438bc51 100644
+--- a/lib/percpu-refcount.c
++++ b/lib/percpu-refcount.c
+@@ -29,7 +29,7 @@
+  * can't hit 0 before we've added up all the percpu refs.
+  */
+ 
+-#define PCPU_COUNT_BIAS		(1U << 31)
++#define PCPU_COUNT_BIAS		(1U << 30)
+ 
+ /**
+  * percpu_ref_init - initialize a percpu refcount
+diff --git a/lib/radix-tree.c b/lib/radix-tree.c
+index 7e30d2a..eccc695 100644
+--- a/lib/radix-tree.c
++++ b/lib/radix-tree.c
+@@ -93,7 +93,7 @@ struct radix_tree_preload {
+ 	int nr;
+ 	struct radix_tree_node *nodes[RADIX_TREE_PRELOAD_SIZE];
+ };
+-static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
++static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads);
+ 
+ static inline void *ptr_to_indirect(void *ptr)
+ {
+diff --git a/lib/random32.c b/lib/random32.c
+index 6148967..009bfe8 100644
+--- a/lib/random32.c
++++ b/lib/random32.c
+@@ -44,7 +44,7 @@
+ static void __init prandom_state_selftest(void);
+ #endif
+ 
+-static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
++static DEFINE_PER_CPU(struct rnd_state, net_rand_state) __latent_entropy;
+ 
+ /**
+  *	prandom_u32_state - seeded pseudo-random number generator.
+diff --git a/lib/rbtree.c b/lib/rbtree.c
+index 65f4eff..2cfa167 100644
+--- a/lib/rbtree.c
++++ b/lib/rbtree.c
+@@ -380,7 +380,9 @@ static inline void dummy_copy(struct rb_node *old, struct rb_node *new) {}
+ static inline void dummy_rotate(struct rb_node *old, struct rb_node *new) {}
+ 
+ static const struct rb_augment_callbacks dummy_callbacks = {
+-	dummy_propagate, dummy_copy, dummy_rotate
++	.propagate = dummy_propagate,
++	.copy = dummy_copy,
++	.rotate = dummy_rotate
+ };
+ 
+ void rb_insert_color(struct rb_node *node, struct rb_root *root)
+diff --git a/lib/show_mem.c b/lib/show_mem.c
+index 0922579..9d7adb9 100644
+--- a/lib/show_mem.c
++++ b/lib/show_mem.c
+@@ -44,6 +44,6 @@ void show_mem(unsigned int filter)
+ 		quicklist_total_size());
+ #endif
+ #ifdef CONFIG_MEMORY_FAILURE
+-	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
++	printk("%lu pages hwpoisoned\n", atomic_long_read_unchecked(&num_poisoned_pages));
+ #endif
+ }
+diff --git a/lib/string.c b/lib/string.c
+index cb9ea21..909c993 100644
+--- a/lib/string.c
++++ b/lib/string.c
+@@ -805,9 +805,9 @@ void *memchr_inv(const void *start, int c, size_t bytes)
+ 		return check_bytes8(start, value, bytes);
+ 
+ 	value64 = value;
+-#if defined(ARCH_HAS_FAST_MULTIPLIER) && BITS_PER_LONG == 64
++#if defined(CONFIG_ARCH_HAS_FAST_MULTIPLIER) && BITS_PER_LONG == 64
+ 	value64 *= 0x0101010101010101;
+-#elif defined(ARCH_HAS_FAST_MULTIPLIER)
++#elif defined(CONFIG_ARCH_HAS_FAST_MULTIPLIER)
+ 	value64 *= 0x01010101;
+ 	value64 |= value64 << 32;
+ #else
+diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
+index bb2b201..46abaf9 100644
+--- a/lib/strncpy_from_user.c
++++ b/lib/strncpy_from_user.c
+@@ -21,7 +21,7 @@
+  */
+ static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
+ {
+-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
++	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+ 	long res = 0;
+ 
+ 	/*
+diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
+index 1164961..02dccaa 100644
+--- a/lib/strnlen_user.c
++++ b/lib/strnlen_user.c
+@@ -26,7 +26,7 @@
+  */
+ static inline long do_strnlen_user(const char __user *src, unsigned long count, unsigned long max)
+ {
+-	const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
++	static const struct word_at_a_time constants = WORD_AT_A_TIME_CONSTANTS;
+ 	long align, res = 0;
+ 	unsigned long c;
+ 
+diff --git a/lib/swiotlb.c b/lib/swiotlb.c
+index b604b83..c0547f6 100644
+--- a/lib/swiotlb.c
++++ b/lib/swiotlb.c
+@@ -674,7 +674,7 @@ EXPORT_SYMBOL(swiotlb_alloc_coherent);
+ 
+ void
+ swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
+-		      dma_addr_t dev_addr)
++		      dma_addr_t dev_addr, struct dma_attrs *attrs)
+ {
+ 	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
+ 
+diff --git a/lib/usercopy.c b/lib/usercopy.c
+index 4f5b1dd..7cab418 100644
+--- a/lib/usercopy.c
++++ b/lib/usercopy.c
+@@ -7,3 +7,9 @@ void copy_from_user_overflow(void)
+ 	WARN(1, "Buffer overflow detected!\n");
+ }
+ EXPORT_SYMBOL(copy_from_user_overflow);
++
++void copy_to_user_overflow(void)
++{
++	WARN(1, "Buffer overflow detected!\n");
++}
++EXPORT_SYMBOL(copy_to_user_overflow);
+diff --git a/lib/vsprintf.c b/lib/vsprintf.c
+index 185b6d3..823c48c 100644
+--- a/lib/vsprintf.c
++++ b/lib/vsprintf.c
+@@ -16,6 +16,9 @@
+  * - scnprintf and vscnprintf
+  */
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++#define __INCLUDED_BY_HIDESYM 1
++#endif
+ #include <stdarg.h>
+ #include <linux/module.h>	/* for KSYM_SYMBOL_LEN */
+ #include <linux/types.h>
+@@ -1179,7 +1182,11 @@ char *address_val(char *buf, char *end, const void *addr,
+ 	return number(buf, end, num, spec);
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++int kptr_restrict __read_mostly = 2;
++#else
+ int kptr_restrict __read_mostly;
++#endif
+ 
+ /*
+  * Show a '%p' thing.  A kernel extension is that the '%p' is followed
+@@ -1192,6 +1199,7 @@ int kptr_restrict __read_mostly;
+  * - 'f' For simple symbolic function names without offset
+  * - 'S' For symbolic direct pointers with offset
+  * - 's' For symbolic direct pointers without offset
++ * - 'A' For symbolic direct pointers with offset approved for use with GRKERNSEC_HIDESYM
+  * - '[FfSs]R' as above with __builtin_extract_return_addr() translation
+  * - 'B' For backtraced symbolic direct pointers with offset
+  * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
+@@ -1259,12 +1267,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
+ 
+ 	if (!ptr && *fmt != 'K') {
+ 		/*
+-		 * Print (null) with the same width as a pointer so it makes
++		 * Print (nil) with the same width as a pointer so it makes
+ 		 * tabular output look nice.
+ 		 */
+ 		if (spec.field_width == -1)
+ 			spec.field_width = default_width;
+-		return string(buf, end, "(null)", spec);
++		return string(buf, end, "(nil)", spec);
+ 	}
+ 
+ 	switch (*fmt) {
+@@ -1274,6 +1282,12 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
+ 		/* Fallthrough */
+ 	case 'S':
+ 	case 's':
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++		break;
++#else
++		return symbol_string(buf, end, ptr, spec, fmt);
++#endif
++	case 'A':
+ 	case 'B':
+ 		return symbol_string(buf, end, ptr, spec, fmt);
+ 	case 'R':
+@@ -1329,6 +1343,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
+ 			va_end(va);
+ 			return buf;
+ 		}
++	case 'P':
++		break;
+ 	case 'K':
+ 		/*
+ 		 * %pK cannot be used in IRQ context because its test
+@@ -1386,6 +1402,21 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
+ 				   ((const struct file *)ptr)->f_path.dentry,
+ 				   spec, fmt);
+ 	}
++
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	/* 'P' = approved pointers to copy to userland,
++	   as in the /proc/kallsyms case, as we make it display nothing
++	   for non-root users, and the real contents for root users
++	   Also ignore 'K' pointers, since we force their NULLing for non-root users
++	   above
++	*/
++	if ((unsigned long)ptr > TASK_SIZE && *fmt != 'P' && *fmt != 'K' && is_usercopy_object(buf)) {
++		printk(KERN_ALERT "grsec: kernel infoleak detected!  Please report this log to spender@grsecurity.net.\n");
++		dump_stack();
++		ptr = NULL;
++	}
++#endif
++
+ 	spec.flags |= SMALL;
+ 	if (spec.field_width == -1) {
+ 		spec.field_width = default_width;
+@@ -2107,11 +2138,11 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
+ 	typeof(type) value;						\
+ 	if (sizeof(type) == 8) {					\
+ 		args = PTR_ALIGN(args, sizeof(u32));			\
+-		*(u32 *)&value = *(u32 *)args;				\
+-		*((u32 *)&value + 1) = *(u32 *)(args + 4);		\
++		*(u32 *)&value = *(const u32 *)args;			\
++		*((u32 *)&value + 1) = *(const u32 *)(args + 4);	\
+ 	} else {							\
+ 		args = PTR_ALIGN(args, sizeof(type));			\
+-		value = *(typeof(type) *)args;				\
++		value = *(const typeof(type) *)args;			\
+ 	}								\
+ 	args += sizeof(type);						\
+ 	value;								\
+@@ -2174,7 +2205,7 @@ int bstr_printf(char *buf, size_t size, const char *fmt, const u32 *bin_buf)
+ 		case FORMAT_TYPE_STR: {
+ 			const char *str_arg = args;
+ 			args += strlen(str_arg) + 1;
+-			str = string(str, end, (char *)str_arg, spec);
++			str = string(str, end, str_arg, spec);
+ 			break;
+ 		}
+ 
+diff --git a/localversion-grsec b/localversion-grsec
+new file mode 100644
+index 0000000..7cd6065
+--- /dev/null
++++ b/localversion-grsec
+@@ -0,0 +1 @@
++-grsec
+diff --git a/mm/Kconfig b/mm/Kconfig
+index 0862816..2e3a043 100644
+--- a/mm/Kconfig
++++ b/mm/Kconfig
+@@ -329,10 +329,11 @@ config KSM
+ 	  root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
+ 
+ config DEFAULT_MMAP_MIN_ADDR
+-        int "Low address space to protect from user allocation"
++	int "Low address space to protect from user allocation"
+ 	depends on MMU
+-        default 4096
+-        help
++	default 32768 if ALPHA || ARM || PARISC || SPARC32
++	default 65536
++	help
+ 	  This is the portion of low virtual memory which should be protected
+ 	  from userspace allocation.  Keeping a user from writing to low pages
+ 	  can help reduce the impact of kernel NULL pointer bugs.
+@@ -363,7 +364,7 @@ config MEMORY_FAILURE
+ 
+ config HWPOISON_INJECT
+ 	tristate "HWPoison pages injector"
+-	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
++	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS && !GRKERNSEC
+ 	select PROC_PAGE_MONITOR
+ 
+ config NOMMU_INITIAL_TRIM_EXCESS
+diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
+index 4b24432..63a3e5e 100644
+--- a/mm/Kconfig.debug
++++ b/mm/Kconfig.debug
+@@ -1,6 +1,7 @@
+ config DEBUG_PAGEALLOC
+ 	bool "Debug page memory allocations"
+ 	depends on DEBUG_KERNEL
++	depends on !PAX_MEMORY_SANITIZE
+ 	depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
+ 	depends on !KMEMCHECK
+ 	select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
+diff --git a/mm/backing-dev.c b/mm/backing-dev.c
+index 09d9591..165bb75 100644
+--- a/mm/backing-dev.c
++++ b/mm/backing-dev.c
+@@ -12,7 +12,7 @@
+ #include <linux/device.h>
+ #include <trace/events/writeback.h>
+ 
+-static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0);
++static atomic_long_unchecked_t bdi_seq = ATOMIC_LONG_INIT(0);
+ 
+ struct backing_dev_info default_backing_dev_info = {
+ 	.name		= "default",
+@@ -533,7 +533,7 @@ int bdi_setup_and_register(struct backing_dev_info *bdi, char *name,
+ 		return err;
+ 
+ 	err = bdi_register(bdi, NULL, "%.28s-%ld", name,
+-			   atomic_long_inc_return(&bdi_seq));
++			   atomic_long_inc_return_unchecked(&bdi_seq));
+ 	if (err) {
+ 		bdi_destroy(bdi);
+ 		return err;
+diff --git a/mm/filemap.c b/mm/filemap.c
+index 217cfd3..6257351 100644
+--- a/mm/filemap.c
++++ b/mm/filemap.c
+@@ -1972,7 +1972,7 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma)
+ 	struct address_space *mapping = file->f_mapping;
+ 
+ 	if (!mapping->a_ops->readpage)
+-		return -ENOEXEC;
++		return -ENODEV;
+ 	file_accessed(file);
+ 	vma->vm_ops = &generic_file_vm_ops;
+ 	return 0;
+@@ -2136,7 +2136,7 @@ static size_t __iovec_copy_from_user_inatomic(char *vaddr,
+ 
+ 	while (bytes) {
+ 		char __user *buf = iov->iov_base + base;
+-		int copy = min(bytes, iov->iov_len - base);
++		size_t copy = min(bytes, iov->iov_len - base);
+ 
+ 		base = 0;
+ 		left = __copy_from_user_inatomic(vaddr, buf, copy);
+@@ -2164,7 +2164,7 @@ size_t iov_iter_copy_from_user_atomic(struct page *page,
+ 
+ 	kaddr = kmap_atomic(page);
+ 	if (likely(i->nr_segs == 1)) {
+-		int left;
++		size_t left;
+ 		char __user *buf = i->iov->iov_base + i->iov_offset;
+ 		left = __copy_from_user_inatomic(kaddr + offset, buf, bytes);
+ 		copied = bytes - left;
+@@ -2192,7 +2192,7 @@ size_t iov_iter_copy_from_user(struct page *page,
+ 
+ 	kaddr = kmap(page);
+ 	if (likely(i->nr_segs == 1)) {
+-		int left;
++		size_t left;
+ 		char __user *buf = i->iov->iov_base + i->iov_offset;
+ 		left = __copy_from_user(kaddr + offset, buf, bytes);
+ 		copied = bytes - left;
+@@ -2222,7 +2222,7 @@ void iov_iter_advance(struct iov_iter *i, size_t bytes)
+ 		 * zero-length segments (without overruning the iovec).
+ 		 */
+ 		while (bytes || unlikely(i->count && !iov->iov_len)) {
+-			int copy;
++			size_t copy;
+ 
+ 			copy = min(bytes, iov->iov_len - base);
+ 			BUG_ON(!i->count || i->count < copy);
+@@ -2293,6 +2293,7 @@ inline int generic_write_checks(struct file *file, loff_t *pos, size_t *count, i
+                         *pos = i_size_read(inode);
+ 
+ 		if (limit != RLIM_INFINITY) {
++			gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0);
+ 			if (*pos >= limit) {
+ 				send_sig(SIGXFSZ, current, 0);
+ 				return -EFBIG;
+diff --git a/mm/fremap.c b/mm/fremap.c
+index 34feba6..315fe78 100644
+--- a/mm/fremap.c
++++ b/mm/fremap.c
+@@ -179,6 +179,11 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
+  retry:
+ 	vma = find_vma(mm, start);
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC))
++		goto out;
++#endif
++
+ 	/*
+ 	 * Make sure the vma is shared, that it supports prefaulting,
+ 	 * and that the remapped range is valid and fully within
+diff --git a/mm/highmem.c b/mm/highmem.c
+index b32b70c..e512eb0 100644
+--- a/mm/highmem.c
++++ b/mm/highmem.c
+@@ -138,8 +138,9 @@ static void flush_all_zero_pkmaps(void)
+ 		 * So no dangers, even with speculative execution.
+ 		 */
+ 		page = pte_page(pkmap_page_table[i]);
++		pax_open_kernel();
+ 		pte_clear(&init_mm, PKMAP_ADDR(i), &pkmap_page_table[i]);
+-
++		pax_close_kernel();
+ 		set_page_address(page, NULL);
+ 		need_flush = 1;
+ 	}
+@@ -198,9 +199,11 @@ start:
+ 		}
+ 	}
+ 	vaddr = PKMAP_ADDR(last_pkmap_nr);
++
++	pax_open_kernel();
+ 	set_pte_at(&init_mm, vaddr,
+ 		   &(pkmap_page_table[last_pkmap_nr]), mk_pte(page, kmap_prot));
+-
++	pax_close_kernel();
+ 	pkmap_count[last_pkmap_nr] = 1;
+ 	set_page_address(page, (void *)vaddr);
+ 
+diff --git a/mm/hugetlb.c b/mm/hugetlb.c
+index c3e8660..3499fac 100644
+--- a/mm/hugetlb.c
++++ b/mm/hugetlb.c
+@@ -2070,6 +2070,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
+ 	struct hstate *h = &default_hstate;
+ 	unsigned long tmp;
+ 	int ret;
++	ctl_table_no_const hugetlb_table;
+ 
+ 	if (!hugepages_supported())
+ 		return -ENOTSUPP;
+@@ -2079,9 +2080,10 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
+ 	if (write && h->order >= MAX_ORDER)
+ 		return -EINVAL;
+ 
+-	table->data = &tmp;
+-	table->maxlen = sizeof(unsigned long);
+-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
++	hugetlb_table = *table;
++	hugetlb_table.data = &tmp;
++	hugetlb_table.maxlen = sizeof(unsigned long);
++	ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
+ 	if (ret)
+ 		goto out;
+ 
+@@ -2126,6 +2128,7 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
+ 	struct hstate *h = &default_hstate;
+ 	unsigned long tmp;
+ 	int ret;
++	ctl_table_no_const hugetlb_table;
+ 
+ 	if (!hugepages_supported())
+ 		return -ENOTSUPP;
+@@ -2135,9 +2138,10 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
+ 	if (write && h->order >= MAX_ORDER)
+ 		return -EINVAL;
+ 
+-	table->data = &tmp;
+-	table->maxlen = sizeof(unsigned long);
+-	ret = proc_doulongvec_minmax(table, write, buffer, length, ppos);
++	hugetlb_table = *table;
++	hugetlb_table.data = &tmp;
++	hugetlb_table.maxlen = sizeof(unsigned long);
++	ret = proc_doulongvec_minmax(&hugetlb_table, write, buffer, length, ppos);
+ 	if (ret)
+ 		goto out;
+ 
+@@ -2630,6 +2634,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	return 1;
+ }
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m)
++{
++	struct mm_struct *mm = vma->vm_mm;
++	struct vm_area_struct *vma_m;
++	unsigned long address_m;
++	pte_t *ptep_m;
++
++	vma_m = pax_find_mirror_vma(vma);
++	if (!vma_m)
++		return;
++
++	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++	address_m = address + SEGMEXEC_TASK_SIZE;
++	ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK);
++	get_page(page_m);
++	hugepage_add_anon_rmap(page_m, vma_m, address_m);
++	set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0));
++}
++#endif
++
+ /*
+  * Hugetlb_cow() should be called with page lock of the original hugepage held.
+  * Called with hugetlb_instantiation_mutex held and pte_page locked so we
+@@ -2746,6 +2771,11 @@ retry_avoidcopy:
+ 				make_huge_pte(vma, new_page, 1));
+ 		page_remove_rmap(old_page);
+ 		hugepage_add_new_anon_rmap(new_page, vma, address);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		pax_mirror_huge_pte(vma, address, new_page);
++#endif
++
+ 		/* Make the old page be freed below */
+ 		new_page = old_page;
+ 	}
+@@ -2910,6 +2940,10 @@ retry:
+ 				&& (vma->vm_flags & VM_SHARED)));
+ 	set_huge_pte_at(mm, address, ptep, new_pte);
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	pax_mirror_huge_pte(vma, address, page);
++#endif
++
+ 	if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
+ 		/* Optimization, do the COW without a second fault */
+ 		ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page, ptl);
+@@ -2940,6 +2974,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	static DEFINE_MUTEX(hugetlb_instantiation_mutex);
+ 	struct hstate *h = hstate_vma(vma);
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m;
++#endif
++
+ 	address &= huge_page_mask(h);
+ 
+ 	ptep = huge_pte_offset(mm, address);
+@@ -2953,6 +2991,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+ 				VM_FAULT_SET_HINDEX(hstate_index(h));
+ 	}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	vma_m = pax_find_mirror_vma(vma);
++	if (vma_m) {
++		unsigned long address_m;
++
++		if (vma->vm_start > vma_m->vm_start) {
++			address_m = address;
++			address -= SEGMEXEC_TASK_SIZE;
++			vma = vma_m;
++			h = hstate_vma(vma);
++		} else
++			address_m = address + SEGMEXEC_TASK_SIZE;
++
++		if (!huge_pte_alloc(mm, address_m, huge_page_size(h)))
++			return VM_FAULT_OOM;
++		address_m &= HPAGE_MASK;
++		unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL);
++	}
++#endif
++
+ 	ptep = huge_pte_alloc(mm, address, huge_page_size(h));
+ 	if (!ptep)
+ 		return VM_FAULT_OOM;
+diff --git a/mm/internal.h b/mm/internal.h
+index 1a8a0d4..2c580ef 100644
+--- a/mm/internal.h
++++ b/mm/internal.h
+@@ -109,6 +109,7 @@ extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address);
+  * in mm/page_alloc.c
+  */
+ extern void __free_pages_bootmem(struct page *page, unsigned int order);
++extern void free_compound_page(struct page *page);
+ extern void prep_compound_page(struct page *page, unsigned long order);
+ #ifdef CONFIG_MEMORY_FAILURE
+ extern bool is_free_buddy_page(struct page *page);
+@@ -370,7 +371,7 @@ extern u32 hwpoison_filter_enable;
+ 
+ extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
+         unsigned long, unsigned long,
+-        unsigned long, unsigned long);
++        unsigned long, unsigned long) __intentional_overflow(-1);
+ 
+ extern void set_pageblock_order(void);
+ unsigned long reclaim_clean_pages_from_list(struct zone *zone,
+diff --git a/mm/kmemleak.c b/mm/kmemleak.c
+index 31f01c5..7015178 100644
+--- a/mm/kmemleak.c
++++ b/mm/kmemleak.c
+@@ -363,7 +363,7 @@ static void print_unreferenced(struct seq_file *seq,
+ 
+ 	for (i = 0; i < object->trace_len; i++) {
+ 		void *ptr = (void *)object->trace[i];
+-		seq_printf(seq, "    [<%p>] %pS\n", ptr, ptr);
++		seq_printf(seq, "    [<%pP>] %pA\n", ptr, ptr);
+ 	}
+ }
+ 
+@@ -1853,7 +1853,7 @@ static int __init kmemleak_late_init(void)
+ 		return -ENOMEM;
+ 	}
+ 
+-	dentry = debugfs_create_file("kmemleak", S_IRUGO, NULL, NULL,
++	dentry = debugfs_create_file("kmemleak", S_IRUSR, NULL, NULL,
+ 				     &kmemleak_fops);
+ 	if (!dentry)
+ 		pr_warning("Failed to create the debugfs kmemleak file\n");
+diff --git a/mm/maccess.c b/mm/maccess.c
+index d53adf9..03a24bf 100644
+--- a/mm/maccess.c
++++ b/mm/maccess.c
+@@ -26,7 +26,7 @@ long __probe_kernel_read(void *dst, const void *src, size_t size)
+ 	set_fs(KERNEL_DS);
+ 	pagefault_disable();
+ 	ret = __copy_from_user_inatomic(dst,
+-			(__force const void __user *)src, size);
++			(const void __force_user *)src, size);
+ 	pagefault_enable();
+ 	set_fs(old_fs);
+ 
+@@ -53,7 +53,7 @@ long __probe_kernel_write(void *dst, const void *src, size_t size)
+ 
+ 	set_fs(KERNEL_DS);
+ 	pagefault_disable();
+-	ret = __copy_to_user_inatomic((__force void __user *)dst, src, size);
++	ret = __copy_to_user_inatomic((void __force_user *)dst, src, size);
+ 	pagefault_enable();
+ 	set_fs(old_fs);
+ 
+diff --git a/mm/madvise.c b/mm/madvise.c
+index a402f8f..1851ab2 100644
+--- a/mm/madvise.c
++++ b/mm/madvise.c
+@@ -51,6 +51,10 @@ static long madvise_behavior(struct vm_area_struct *vma,
+ 	pgoff_t pgoff;
+ 	unsigned long new_flags = vma->vm_flags;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m;
++#endif
++
+ 	switch (behavior) {
+ 	case MADV_NORMAL:
+ 		new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
+@@ -126,6 +130,13 @@ success:
+ 	/*
+ 	 * vm_flags is protected by the mmap_sem held in write mode.
+ 	 */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	vma_m = pax_find_mirror_vma(vma);
++	if (vma_m)
++		vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT);
++#endif
++
+ 	vma->vm_flags = new_flags;
+ 
+ out:
+@@ -274,6 +285,11 @@ static long madvise_dontneed(struct vm_area_struct *vma,
+ 			     struct vm_area_struct **prev,
+ 			     unsigned long start, unsigned long end)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m;
++#endif
++
+ 	*prev = vma;
+ 	if (vma->vm_flags & (VM_LOCKED|VM_HUGETLB|VM_PFNMAP))
+ 		return -EINVAL;
+@@ -286,6 +302,21 @@ static long madvise_dontneed(struct vm_area_struct *vma,
+ 		zap_page_range(vma, start, end - start, &details);
+ 	} else
+ 		zap_page_range(vma, start, end - start, NULL);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	vma_m = pax_find_mirror_vma(vma);
++	if (vma_m) {
++		if (unlikely(vma->vm_flags & VM_NONLINEAR)) {
++			struct zap_details details = {
++				.nonlinear_vma = vma_m,
++				.last_index = ULONG_MAX,
++			};
++			zap_page_range(vma_m, start + SEGMEXEC_TASK_SIZE, end - start, &details);
++		} else
++			zap_page_range(vma_m, start + SEGMEXEC_TASK_SIZE, end - start, NULL);
++	}
++#endif
++
+ 	return 0;
+ }
+ 
+@@ -491,6 +522,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
+ 	if (end < start)
+ 		return error;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++		if (end > SEGMEXEC_TASK_SIZE)
++			return error;
++	} else
++#endif
++
++	if (end > TASK_SIZE)
++		return error;
++
+ 	error = 0;
+ 	if (end == start)
+ 		return error;
+diff --git a/mm/memory-failure.c b/mm/memory-failure.c
+index 9502057..a83c0d4 100644
+--- a/mm/memory-failure.c
++++ b/mm/memory-failure.c
+@@ -61,7 +61,7 @@ int sysctl_memory_failure_early_kill __read_mostly = 0;
+ 
+ int sysctl_memory_failure_recovery __read_mostly = 1;
+ 
+-atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
++atomic_long_unchecked_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
+ 
+ #if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
+ 
+@@ -202,7 +202,7 @@ static int kill_proc(struct task_struct *t, unsigned long addr, int trapno,
+ 		pfn, t->comm, t->pid);
+ 	si.si_signo = SIGBUS;
+ 	si.si_errno = 0;
+-	si.si_addr = (void *)addr;
++	si.si_addr = (void __user *)addr;
+ #ifdef __ARCH_SI_TRAPNO
+ 	si.si_trapno = trapno;
+ #endif
+@@ -795,7 +795,7 @@ static struct page_state {
+ 	unsigned long res;
+ 	char *msg;
+ 	int (*action)(struct page *p, unsigned long pfn);
+-} error_states[] = {
++} __do_const error_states[] = {
+ 	{ reserved,	reserved,	"reserved kernel",	me_kernel },
+ 	/*
+ 	 * free pages are specially detected outside this table:
+@@ -1095,7 +1095,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
+ 		nr_pages = 1 << compound_order(hpage);
+ 	else /* normal page or thp */
+ 		nr_pages = 1;
+-	atomic_long_add(nr_pages, &num_poisoned_pages);
++	atomic_long_add_unchecked(nr_pages, &num_poisoned_pages);
+ 
+ 	/*
+ 	 * We need/can do nothing about count=0 pages.
+@@ -1124,7 +1124,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
+ 			if (PageHWPoison(hpage)) {
+ 				if ((hwpoison_filter(p) && TestClearPageHWPoison(p))
+ 				    || (p != hpage && TestSetPageHWPoison(hpage))) {
+-					atomic_long_sub(nr_pages, &num_poisoned_pages);
++					atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
+ 					unlock_page(hpage);
+ 					return 0;
+ 				}
+@@ -1190,14 +1190,14 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
+ 	 */
+ 	if (!PageHWPoison(p)) {
+ 		printk(KERN_ERR "MCE %#lx: just unpoisoned\n", pfn);
+-		atomic_long_sub(nr_pages, &num_poisoned_pages);
++		atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
+ 		put_page(hpage);
+ 		res = 0;
+ 		goto out;
+ 	}
+ 	if (hwpoison_filter(p)) {
+ 		if (TestClearPageHWPoison(p))
+-			atomic_long_sub(nr_pages, &num_poisoned_pages);
++			atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
+ 		unlock_page(hpage);
+ 		put_page(hpage);
+ 		return 0;
+@@ -1419,7 +1419,7 @@ int unpoison_memory(unsigned long pfn)
+ 			return 0;
+ 		}
+ 		if (TestClearPageHWPoison(p))
+-			atomic_long_dec(&num_poisoned_pages);
++			atomic_long_dec_unchecked(&num_poisoned_pages);
+ 		pr_info("MCE: Software-unpoisoned free page %#lx\n", pfn);
+ 		return 0;
+ 	}
+@@ -1433,7 +1433,7 @@ int unpoison_memory(unsigned long pfn)
+ 	 */
+ 	if (TestClearPageHWPoison(page)) {
+ 		pr_info("MCE: Software-unpoisoned page %#lx\n", pfn);
+-		atomic_long_sub(nr_pages, &num_poisoned_pages);
++		atomic_long_sub_unchecked(nr_pages, &num_poisoned_pages);
+ 		freeit = 1;
+ 		if (PageHuge(page))
+ 			clear_page_hwpoison_huge_page(page);
+@@ -1558,11 +1558,11 @@ static int soft_offline_huge_page(struct page *page, int flags)
+ 		if (PageHuge(page)) {
+ 			set_page_hwpoison_huge_page(hpage);
+ 			dequeue_hwpoisoned_huge_page(hpage);
+-			atomic_long_add(1 << compound_order(hpage),
++			atomic_long_add_unchecked(1 << compound_order(hpage),
+ 					&num_poisoned_pages);
+ 		} else {
+ 			SetPageHWPoison(page);
+-			atomic_long_inc(&num_poisoned_pages);
++			atomic_long_inc_unchecked(&num_poisoned_pages);
+ 		}
+ 	}
+ 	return ret;
+@@ -1601,7 +1601,7 @@ static int __soft_offline_page(struct page *page, int flags)
+ 		put_page(page);
+ 		pr_info("soft_offline: %#lx: invalidated\n", pfn);
+ 		SetPageHWPoison(page);
+-		atomic_long_inc(&num_poisoned_pages);
++		atomic_long_inc_unchecked(&num_poisoned_pages);
+ 		return 0;
+ 	}
+ 
+@@ -1650,7 +1650,7 @@ static int __soft_offline_page(struct page *page, int flags)
+ 			if (!is_free_buddy_page(page))
+ 				pr_info("soft offline: %#lx: page leaked\n",
+ 					pfn);
+-			atomic_long_inc(&num_poisoned_pages);
++			atomic_long_inc_unchecked(&num_poisoned_pages);
+ 		}
+ 	} else {
+ 		pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n",
+@@ -1724,11 +1724,11 @@ int soft_offline_page(struct page *page, int flags)
+ 		if (PageHuge(page)) {
+ 			set_page_hwpoison_huge_page(hpage);
+ 			if (!dequeue_hwpoisoned_huge_page(hpage))
+-				atomic_long_add(1 << compound_order(hpage),
++				atomic_long_add_unchecked(1 << compound_order(hpage),
+ 					&num_poisoned_pages);
+ 		} else {
+ 			if (!TestSetPageHWPoison(page))
+-				atomic_long_inc(&num_poisoned_pages);
++				atomic_long_inc_unchecked(&num_poisoned_pages);
+ 		}
+ 	}
+ 	unset_migratetype_isolate(page, MIGRATE_MOVABLE);
+diff --git a/mm/memory.c b/mm/memory.c
+index 749e1c6..f7fbc29 100644
+--- a/mm/memory.c
++++ b/mm/memory.c
+@@ -403,6 +403,7 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
+ 		free_pte_range(tlb, pmd, addr);
+ 	} while (pmd++, addr = next, addr != end);
+ 
++#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_PER_CPU_PGD)
+ 	start &= PUD_MASK;
+ 	if (start < floor)
+ 		return;
+@@ -417,6 +418,8 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
+ 	pmd = pmd_offset(pud, start);
+ 	pud_clear(pud);
+ 	pmd_free_tlb(tlb, pmd, start);
++#endif
++
+ }
+ 
+ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
+@@ -436,6 +439,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
+ 		free_pmd_range(tlb, pud, addr, next, floor, ceiling);
+ 	} while (pud++, addr = next, addr != end);
+ 
++#if !defined(CONFIG_X86_64) || !defined(CONFIG_PAX_PER_CPU_PGD)
+ 	start &= PGDIR_MASK;
+ 	if (start < floor)
+ 		return;
+@@ -450,6 +454,8 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
+ 	pud = pud_offset(pgd, start);
+ 	pgd_clear(pgd);
+ 	pud_free_tlb(tlb, pud, start);
++#endif
++
+ }
+ 
+ /*
+@@ -679,10 +685,10 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
+ 	 * Choose text because data symbols depend on CONFIG_KALLSYMS_ALL=y
+ 	 */
+ 	if (vma->vm_ops)
+-		printk(KERN_ALERT "vma->vm_ops->fault: %pSR\n",
++		printk(KERN_ALERT "vma->vm_ops->fault: %pAR\n",
+ 		       vma->vm_ops->fault);
+ 	if (vma->vm_file)
+-		printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n",
++		printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pAR\n",
+ 		       vma->vm_file->f_op->mmap);
+ 	dump_stack();
+ 	add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
+@@ -1137,8 +1143,10 @@ again:
+ 			if (unlikely(page_mapcount(page) < 0))
+ 				print_bad_pte(vma, addr, ptent, page);
+ 			force_flush = !__tlb_remove_page(tlb, page);
+-			if (force_flush)
++			if (force_flush) {
++				addr += PAGE_SIZE;
+ 				break;
++			}
+ 			continue;
+ 		}
+ 		/*
+@@ -1636,12 +1644,6 @@ no_page_table:
+ 	return page;
+ }
+ 
+-static inline int stack_guard_page(struct vm_area_struct *vma, unsigned long addr)
+-{
+-	return stack_guard_page_start(vma, addr) ||
+-	       stack_guard_page_end(vma, addr+PAGE_SIZE);
+-}
+-
+ /**
+  * __get_user_pages() - pin user pages in memory
+  * @tsk:	task_struct of target task
+@@ -1728,10 +1730,10 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
+ 
+ 	i = 0;
+ 
+-	do {
++	while (nr_pages) {
+ 		struct vm_area_struct *vma;
+ 
+-		vma = find_extend_vma(mm, start);
++		vma = find_vma(mm, start);
+ 		if (!vma && in_gate_area(mm, start)) {
+ 			unsigned long pg = start & PAGE_MASK;
+ 			pgd_t *pgd;
+@@ -1780,7 +1782,7 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
+ 			goto next_page;
+ 		}
+ 
+-		if (!vma ||
++		if (!vma || start < vma->vm_start ||
+ 		    (vma->vm_flags & (VM_IO | VM_PFNMAP)) ||
+ 		    !(vm_flags & vma->vm_flags))
+ 			return i ? : -EFAULT;
+@@ -1809,11 +1811,6 @@ long __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
+ 				int ret;
+ 				unsigned int fault_flags = 0;
+ 
+-				/* For mlock, just skip the stack guard page. */
+-				if (foll_flags & FOLL_MLOCK) {
+-					if (stack_guard_page(vma, start))
+-						goto next_page;
+-				}
+ 				if (foll_flags & FOLL_WRITE)
+ 					fault_flags |= FAULT_FLAG_WRITE;
+ 				if (nonblocking)
+@@ -1894,7 +1891,7 @@ next_page:
+ 			start += page_increm * PAGE_SIZE;
+ 			nr_pages -= page_increm;
+ 		} while (nr_pages && start < vma->vm_end);
+-	} while (nr_pages);
++	}
+ 	return i;
+ }
+ EXPORT_SYMBOL(__get_user_pages);
+@@ -2106,6 +2103,10 @@ static int insert_page(struct vm_area_struct *vma, unsigned long addr,
+ 	page_add_file_rmap(page);
+ 	set_pte_at(mm, addr, pte, mk_pte(page, prot));
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	pax_mirror_file_pte(vma, addr, page, ptl);
++#endif
++
+ 	retval = 0;
+ 	pte_unmap_unlock(pte, ptl);
+ 	return retval;
+@@ -2150,9 +2151,21 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr,
+ 	if (!page_count(page))
+ 		return -EINVAL;
+ 	if (!(vma->vm_flags & VM_MIXEDMAP)) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		struct vm_area_struct *vma_m;
++#endif
++
+ 		BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem));
+ 		BUG_ON(vma->vm_flags & VM_PFNMAP);
+ 		vma->vm_flags |= VM_MIXEDMAP;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		vma_m = pax_find_mirror_vma(vma);
++		if (vma_m)
++			vma_m->vm_flags |= VM_MIXEDMAP;
++#endif
++
+ 	}
+ 	return insert_page(vma, addr, page, vma->vm_page_prot);
+ }
+@@ -2235,6 +2248,7 @@ int vm_insert_mixed(struct vm_area_struct *vma, unsigned long addr,
+ 			unsigned long pfn)
+ {
+ 	BUG_ON(!(vma->vm_flags & VM_MIXEDMAP));
++	BUG_ON(vma->vm_mirror);
+ 
+ 	if (addr < vma->vm_start || addr >= vma->vm_end)
+ 		return -EFAULT;
+@@ -2482,7 +2496,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
+ 
+ 	BUG_ON(pud_huge(*pud));
+ 
+-	pmd = pmd_alloc(mm, pud, addr);
++	pmd = (mm == &init_mm) ?
++		pmd_alloc_kernel(mm, pud, addr) :
++		pmd_alloc(mm, pud, addr);
+ 	if (!pmd)
+ 		return -ENOMEM;
+ 	do {
+@@ -2502,7 +2518,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
+ 	unsigned long next;
+ 	int err;
+ 
+-	pud = pud_alloc(mm, pgd, addr);
++	pud = (mm == &init_mm) ?
++		pud_alloc_kernel(mm, pgd, addr) :
++		pud_alloc(mm, pgd, addr);
+ 	if (!pud)
+ 		return -ENOMEM;
+ 	do {
+@@ -2592,6 +2610,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
+ 		copy_user_highpage(dst, src, va, vma);
+ }
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd)
++{
++	struct mm_struct *mm = vma->vm_mm;
++	spinlock_t *ptl;
++	pte_t *pte, entry;
++
++	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
++	entry = *pte;
++	if (!pte_present(entry)) {
++		if (!pte_none(entry)) {
++			BUG_ON(pte_file(entry));
++			free_swap_and_cache(pte_to_swp_entry(entry));
++			pte_clear_not_present_full(mm, address, pte, 0);
++		}
++	} else {
++		struct page *page;
++
++		flush_cache_page(vma, address, pte_pfn(entry));
++		entry = ptep_clear_flush(vma, address, pte);
++		BUG_ON(pte_dirty(entry));
++		page = vm_normal_page(vma, address, entry);
++		if (page) {
++			update_hiwater_rss(mm);
++			if (PageAnon(page))
++				dec_mm_counter_fast(mm, MM_ANONPAGES);
++			else
++				dec_mm_counter_fast(mm, MM_FILEPAGES);
++			page_remove_rmap(page);
++			page_cache_release(page);
++		}
++	}
++	pte_unmap_unlock(pte, ptl);
++}
++
++/* PaX: if vma is mirrored, synchronize the mirror's PTE
++ *
++ * the ptl of the lower mapped page is held on entry and is not released on exit
++ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc)
++ */
++static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
++{
++	struct mm_struct *mm = vma->vm_mm;
++	unsigned long address_m;
++	spinlock_t *ptl_m;
++	struct vm_area_struct *vma_m;
++	pmd_t *pmd_m;
++	pte_t *pte_m, entry_m;
++
++	BUG_ON(!page_m || !PageAnon(page_m));
++
++	vma_m = pax_find_mirror_vma(vma);
++	if (!vma_m)
++		return;
++
++	BUG_ON(!PageLocked(page_m));
++	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++	address_m = address + SEGMEXEC_TASK_SIZE;
++	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
++	pte_m = pte_offset_map(pmd_m, address_m);
++	ptl_m = pte_lockptr(mm, pmd_m);
++	if (ptl != ptl_m) {
++		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
++		if (!pte_none(*pte_m))
++			goto out;
++	}
++
++	entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
++	page_cache_get(page_m);
++	page_add_anon_rmap(page_m, vma_m, address_m);
++	inc_mm_counter_fast(mm, MM_ANONPAGES);
++	set_pte_at(mm, address_m, pte_m, entry_m);
++	update_mmu_cache(vma_m, address_m, pte_m);
++out:
++	if (ptl != ptl_m)
++		spin_unlock(ptl_m);
++	pte_unmap(pte_m);
++	unlock_page(page_m);
++}
++
++void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl)
++{
++	struct mm_struct *mm = vma->vm_mm;
++	unsigned long address_m;
++	spinlock_t *ptl_m;
++	struct vm_area_struct *vma_m;
++	pmd_t *pmd_m;
++	pte_t *pte_m, entry_m;
++
++	BUG_ON(!page_m || PageAnon(page_m));
++
++	vma_m = pax_find_mirror_vma(vma);
++	if (!vma_m)
++		return;
++
++	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++	address_m = address + SEGMEXEC_TASK_SIZE;
++	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
++	pte_m = pte_offset_map(pmd_m, address_m);
++	ptl_m = pte_lockptr(mm, pmd_m);
++	if (ptl != ptl_m) {
++		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
++		if (!pte_none(*pte_m))
++			goto out;
++	}
++
++	entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot);
++	page_cache_get(page_m);
++	page_add_file_rmap(page_m);
++	inc_mm_counter_fast(mm, MM_FILEPAGES);
++	set_pte_at(mm, address_m, pte_m, entry_m);
++	update_mmu_cache(vma_m, address_m, pte_m);
++out:
++	if (ptl != ptl_m)
++		spin_unlock(ptl_m);
++	pte_unmap(pte_m);
++}
++
++static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl)
++{
++	struct mm_struct *mm = vma->vm_mm;
++	unsigned long address_m;
++	spinlock_t *ptl_m;
++	struct vm_area_struct *vma_m;
++	pmd_t *pmd_m;
++	pte_t *pte_m, entry_m;
++
++	vma_m = pax_find_mirror_vma(vma);
++	if (!vma_m)
++		return;
++
++	BUG_ON(address >= SEGMEXEC_TASK_SIZE);
++	address_m = address + SEGMEXEC_TASK_SIZE;
++	pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m);
++	pte_m = pte_offset_map(pmd_m, address_m);
++	ptl_m = pte_lockptr(mm, pmd_m);
++	if (ptl != ptl_m) {
++		spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING);
++		if (!pte_none(*pte_m))
++			goto out;
++	}
++
++	entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot);
++	set_pte_at(mm, address_m, pte_m, entry_m);
++out:
++	if (ptl != ptl_m)
++		spin_unlock(ptl_m);
++	pte_unmap(pte_m);
++}
++
++static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl)
++{
++	struct page *page_m;
++	pte_t entry;
++
++	if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC))
++		goto out;
++
++	entry = *pte;
++	page_m  = vm_normal_page(vma, address, entry);
++	if (!page_m)
++		pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl);
++	else if (PageAnon(page_m)) {
++		if (pax_find_mirror_vma(vma)) {
++			pte_unmap_unlock(pte, ptl);
++			lock_page(page_m);
++			pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl);
++			if (pte_same(entry, *pte))
++				pax_mirror_anon_pte(vma, address, page_m, ptl);
++			else
++				unlock_page(page_m);
++		}
++	} else
++		pax_mirror_file_pte(vma, address, page_m, ptl);
++
++out:
++	pte_unmap_unlock(pte, ptl);
++}
++#endif
++
+ /*
+  * This routine handles present pages, when users try to write
+  * to a shared page. It is done by copying the page to a new address
+@@ -2816,6 +3014,12 @@ gotten:
+ 	 */
+ 	page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
+ 	if (likely(pte_same(*page_table, orig_pte))) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		if (pax_find_mirror_vma(vma))
++			BUG_ON(!trylock_page(new_page));
++#endif
++
+ 		if (old_page) {
+ 			if (!PageAnon(old_page)) {
+ 				dec_mm_counter_fast(mm, MM_FILEPAGES);
+@@ -2867,6 +3071,10 @@ gotten:
+ 			page_remove_rmap(old_page);
+ 		}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++		pax_mirror_anon_pte(vma, address, new_page, ptl);
++#endif
++
+ 		/* Free the old page.. */
+ 		new_page = old_page;
+ 		ret |= VM_FAULT_WRITE;
+@@ -3144,6 +3352,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	swap_free(entry);
+ 	if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
+ 		try_to_free_swap(page);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((flags & FAULT_FLAG_WRITE) || !pax_find_mirror_vma(vma))
++#endif
++
+ 	unlock_page(page);
+ 	if (page != swapcache) {
+ 		/*
+@@ -3167,6 +3380,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
+ 
+ 	/* No need to invalidate - it was non-present before */
+ 	update_mmu_cache(vma, address, page_table);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	pax_mirror_anon_pte(vma, address, page, ptl);
++#endif
++
+ unlock:
+ 	pte_unmap_unlock(page_table, ptl);
+ out:
+@@ -3186,40 +3404,6 @@ out_release:
+ }
+ 
+ /*
+- * This is like a special single-page "expand_{down|up}wards()",
+- * except we must first make sure that 'address{-|+}PAGE_SIZE'
+- * doesn't hit another vma.
+- */
+-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
+-{
+-	address &= PAGE_MASK;
+-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
+-		struct vm_area_struct *prev = vma->vm_prev;
+-
+-		/*
+-		 * Is there a mapping abutting this one below?
+-		 *
+-		 * That's only ok if it's the same stack mapping
+-		 * that has gotten split..
+-		 */
+-		if (prev && prev->vm_end == address)
+-			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
+-
+-		return expand_downwards(vma, address - PAGE_SIZE);
+-	}
+-	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
+-		struct vm_area_struct *next = vma->vm_next;
+-
+-		/* As VM_GROWSDOWN but s/below/above/ */
+-		if (next && next->vm_start == address + PAGE_SIZE)
+-			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
+-
+-		return expand_upwards(vma, address + PAGE_SIZE);
+-	}
+-	return 0;
+-}
+-
+-/*
+  * We enter with non-exclusive mmap_sem (to exclude vma changes,
+  * but allow concurrent faults), and pte mapped but not yet locked.
+  * We return with mmap_sem still held, but pte unmapped and unlocked.
+@@ -3228,27 +3412,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
+ 		unsigned long address, pte_t *page_table, pmd_t *pmd,
+ 		unsigned int flags)
+ {
+-	struct page *page;
++	struct page *page = NULL;
+ 	spinlock_t *ptl;
+ 	pte_t entry;
+ 
+-	pte_unmap(page_table);
+-
+-	/* Check if we need to add a guard page to the stack */
+-	if (check_stack_guard_page(vma, address) < 0)
+-		return VM_FAULT_SIGSEGV;
+-
+-	/* Use the zero-page for reads */
+ 	if (!(flags & FAULT_FLAG_WRITE)) {
+ 		entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
+ 						vma->vm_page_prot));
+-		page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
++		ptl = pte_lockptr(mm, pmd);
++		spin_lock(ptl);
+ 		if (!pte_none(*page_table))
+ 			goto unlock;
+ 		goto setpte;
+ 	}
+ 
+ 	/* Allocate our own private page. */
++	pte_unmap(page_table);
++
+ 	if (unlikely(anon_vma_prepare(vma)))
+ 		goto oom;
+ 	page = alloc_zeroed_user_highpage_movable(vma, address);
+@@ -3272,6 +3452,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	if (!pte_none(*page_table))
+ 		goto release;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (pax_find_mirror_vma(vma))
++		BUG_ON(!trylock_page(page));
++#endif
++
+ 	inc_mm_counter_fast(mm, MM_ANONPAGES);
+ 	page_add_new_anon_rmap(page, vma, address);
+ setpte:
+@@ -3279,6 +3464,12 @@ setpte:
+ 
+ 	/* No need to invalidate - it was non-present before */
+ 	update_mmu_cache(vma, address, page_table);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (page)
++		pax_mirror_anon_pte(vma, address, page, ptl);
++#endif
++
+ unlock:
+ 	pte_unmap_unlock(page_table, ptl);
+ 	return 0;
+@@ -3423,6 +3614,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	 */
+ 	/* Only go through if we didn't race with anybody else... */
+ 	if (likely(pte_same(*page_table, orig_pte))) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		if (anon && pax_find_mirror_vma(vma))
++			BUG_ON(!trylock_page(page));
++#endif
++
+ 		flush_icache_page(vma, page);
+ 		entry = mk_pte(page, vma->vm_page_prot);
+ 		if (flags & FAULT_FLAG_WRITE)
+@@ -3444,6 +3641,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+ 
+ 		/* no need to invalidate: a not-present page won't be cached */
+ 		update_mmu_cache(vma, address, page_table);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		if (anon)
++			pax_mirror_anon_pte(vma, address, page, ptl);
++		else
++			pax_mirror_file_pte(vma, address, page, ptl);
++#endif
++
+ 	} else {
+ 		if (cow_page)
+ 			mem_cgroup_uncharge_page(cow_page);
+@@ -3691,6 +3896,12 @@ static int handle_pte_fault(struct mm_struct *mm,
+ 		if (flags & FAULT_FLAG_WRITE)
+ 			flush_tlb_fix_spurious_fault(vma, address);
+ 	}
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	pax_mirror_pte(vma, address, pte, pmd, ptl);
++	return 0;
++#endif
++
+ unlock:
+ 	pte_unmap_unlock(pte, ptl);
+ 	return 0;
+@@ -3707,9 +3918,41 @@ static int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	pmd_t *pmd;
+ 	pte_t *pte;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m;
++#endif
++
+ 	if (unlikely(is_vm_hugetlb_page(vma)))
+ 		return hugetlb_fault(mm, vma, address, flags);
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	vma_m = pax_find_mirror_vma(vma);
++	if (vma_m) {
++		unsigned long address_m;
++		pgd_t *pgd_m;
++		pud_t *pud_m;
++		pmd_t *pmd_m;
++
++		if (vma->vm_start > vma_m->vm_start) {
++			address_m = address;
++			address -= SEGMEXEC_TASK_SIZE;
++			vma = vma_m;
++		} else
++			address_m = address + SEGMEXEC_TASK_SIZE;
++
++		pgd_m = pgd_offset(mm, address_m);
++		pud_m = pud_alloc(mm, pgd_m, address_m);
++		if (!pud_m)
++			return VM_FAULT_OOM;
++		pmd_m = pmd_alloc(mm, pud_m, address_m);
++		if (!pmd_m)
++			return VM_FAULT_OOM;
++		if (!pmd_present(*pmd_m) && __pte_alloc(mm, vma_m, pmd_m, address_m))
++			return VM_FAULT_OOM;
++		pax_unmap_mirror_pte(vma_m, address_m, pmd_m);
++	}
++#endif
++
+ 	pgd = pgd_offset(mm, address);
+ 	pud = pud_alloc(mm, pgd, address);
+ 	if (!pud)
+@@ -3837,6 +4080,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+ 	spin_unlock(&mm->page_table_lock);
+ 	return 0;
+ }
++
++int __pud_alloc_kernel(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
++{
++	pud_t *new = pud_alloc_one(mm, address);
++	if (!new)
++		return -ENOMEM;
++
++	smp_wmb(); /* See comment in __pte_alloc */
++
++	spin_lock(&mm->page_table_lock);
++	if (pgd_present(*pgd))		/* Another has populated it */
++		pud_free(mm, new);
++	else
++		pgd_populate_kernel(mm, pgd, new);
++	spin_unlock(&mm->page_table_lock);
++	return 0;
++}
+ #endif /* __PAGETABLE_PUD_FOLDED */
+ 
+ #ifndef __PAGETABLE_PMD_FOLDED
+@@ -3867,6 +4127,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
+ 	spin_unlock(&mm->page_table_lock);
+ 	return 0;
+ }
++
++int __pmd_alloc_kernel(struct mm_struct *mm, pud_t *pud, unsigned long address)
++{
++	pmd_t *new = pmd_alloc_one(mm, address);
++	if (!new)
++		return -ENOMEM;
++
++	smp_wmb(); /* See comment in __pte_alloc */
++
++	spin_lock(&mm->page_table_lock);
++#ifndef __ARCH_HAS_4LEVEL_HACK
++	if (pud_present(*pud))		/* Another has populated it */
++		pmd_free(mm, new);
++	else
++		pud_populate_kernel(mm, pud, new);
++#else
++	if (pgd_present(*pud))		/* Another has populated it */
++		pmd_free(mm, new);
++	else
++		pgd_populate_kernel(mm, pud, new);
++#endif /* __ARCH_HAS_4LEVEL_HACK */
++	spin_unlock(&mm->page_table_lock);
++	return 0;
++}
+ #endif /* __PAGETABLE_PMD_FOLDED */
+ 
+ #if !defined(__HAVE_ARCH_GATE_AREA)
+@@ -3880,7 +4164,7 @@ static int __init gate_vma_init(void)
+ 	gate_vma.vm_start = FIXADDR_USER_START;
+ 	gate_vma.vm_end = FIXADDR_USER_END;
+ 	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
+-	gate_vma.vm_page_prot = __P101;
++	gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags);
+ 
+ 	return 0;
+ }
+@@ -4014,8 +4298,8 @@ out:
+ 	return ret;
+ }
+ 
+-int generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
+-			void *buf, int len, int write)
++ssize_t generic_access_phys(struct vm_area_struct *vma, unsigned long addr,
++			void *buf, size_t len, int write)
+ {
+ 	resource_size_t phys_addr;
+ 	unsigned long prot = 0;
+@@ -4041,8 +4325,8 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
+  * Access another process' address space as given in mm.  If non-NULL, use the
+  * given task for page fault accounting.
+  */
+-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+-		unsigned long addr, void *buf, int len, int write)
++static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
++		unsigned long addr, void *buf, size_t len, int write)
+ {
+ 	struct vm_area_struct *vma;
+ 	void *old_buf = buf;
+@@ -4050,7 +4334,7 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+ 	down_read(&mm->mmap_sem);
+ 	/* ignore errors, just check how much was successfully transferred */
+ 	while (len) {
+-		int bytes, ret, offset;
++		ssize_t bytes, ret, offset;
+ 		void *maddr;
+ 		struct page *page = NULL;
+ 
+@@ -4109,8 +4393,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+  *
+  * The caller must hold a reference on @mm.
+  */
+-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
+-		void *buf, int len, int write)
++ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
++		void *buf, size_t len, int write)
+ {
+ 	return __access_remote_vm(NULL, mm, addr, buf, len, write);
+ }
+@@ -4120,11 +4404,11 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
+  * Source/target buffer must be kernel space,
+  * Do not walk the page table directly, use get_user_pages
+  */
+-int access_process_vm(struct task_struct *tsk, unsigned long addr,
+-		void *buf, int len, int write)
++ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr,
++		void *buf, size_t len, int write)
+ {
+ 	struct mm_struct *mm;
+-	int ret;
++	ssize_t ret;
+ 
+ 	mm = get_task_mm(tsk);
+ 	if (!mm)
+diff --git a/mm/mempolicy.c b/mm/mempolicy.c
+index 936866e..25f7b73 100644
+--- a/mm/mempolicy.c
++++ b/mm/mempolicy.c
+@@ -747,6 +747,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
+ 	unsigned long vmstart;
+ 	unsigned long vmend;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m;
++#endif
++
+ 	vma = find_vma(mm, start);
+ 	if (!vma || vma->vm_start > start)
+ 		return -EFAULT;
+@@ -790,6 +794,16 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
+ 		err = vma_replace_policy(vma, new_pol);
+ 		if (err)
+ 			goto out;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		vma_m = pax_find_mirror_vma(vma);
++		if (vma_m) {
++			err = vma_replace_policy(vma_m, new_pol);
++			if (err)
++				goto out;
++		}
++#endif
++
+ 	}
+ 
+  out:
+@@ -1253,6 +1267,17 @@ static long do_mbind(unsigned long start, unsigned long len,
+ 
+ 	if (end < start)
+ 		return -EINVAL;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
++		if (end > SEGMEXEC_TASK_SIZE)
++			return -EINVAL;
++	} else
++#endif
++
++	if (end > TASK_SIZE)
++		return -EINVAL;
++
+ 	if (end == start)
+ 		return 0;
+ 
+@@ -1478,8 +1503,7 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
+ 	 */
+ 	tcred = __task_cred(task);
+ 	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
+-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
+-	    !capable(CAP_SYS_NICE)) {
++	    !uid_eq(cred->uid,  tcred->suid) && !capable(CAP_SYS_NICE)) {
+ 		rcu_read_unlock();
+ 		err = -EPERM;
+ 		goto out_put;
+@@ -1510,6 +1534,15 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pid, unsigned long, maxnode,
+ 		goto out;
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	if (mm != current->mm &&
++	    (mm->pax_flags & MF_PAX_RANDMMAP || mm->pax_flags & MF_PAX_SEGMEXEC)) {
++		mmput(mm);
++		err = -EPERM;
++		goto out;
++	}
++#endif
++
+ 	err = do_migrate_pages(mm, old, new,
+ 		capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
+ 
+diff --git a/mm/migrate.c b/mm/migrate.c
+index 3acac4a..a186f71 100644
+--- a/mm/migrate.c
++++ b/mm/migrate.c
+@@ -1511,8 +1511,7 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
+ 	 */
+ 	tcred = __task_cred(task);
+ 	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
+-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
+-	    !capable(CAP_SYS_NICE)) {
++	    !uid_eq(cred->uid,  tcred->suid) && !capable(CAP_SYS_NICE)) {
+ 		rcu_read_unlock();
+ 		err = -EPERM;
+ 		goto out;
+diff --git a/mm/mlock.c b/mm/mlock.c
+index b1eb536..091d154 100644
+--- a/mm/mlock.c
++++ b/mm/mlock.c
+@@ -14,6 +14,7 @@
+ #include <linux/pagevec.h>
+ #include <linux/mempolicy.h>
+ #include <linux/syscalls.h>
++#include <linux/security.h>
+ #include <linux/sched.h>
+ #include <linux/export.h>
+ #include <linux/rmap.h>
+@@ -606,7 +607,7 @@ static int do_mlock(unsigned long start, size_t len, int on)
+ {
+ 	unsigned long nstart, end, tmp;
+ 	struct vm_area_struct * vma, * prev;
+-	int error;
++	int error = 0;
+ 
+ 	VM_BUG_ON(start & ~PAGE_MASK);
+ 	VM_BUG_ON(len != PAGE_ALIGN(len));
+@@ -615,6 +616,9 @@ static int do_mlock(unsigned long start, size_t len, int on)
+ 		return -EINVAL;
+ 	if (end == start)
+ 		return 0;
++	if (end > TASK_SIZE)
++		return -EINVAL;
++
+ 	vma = find_vma(current->mm, start);
+ 	if (!vma || vma->vm_start > start)
+ 		return -ENOMEM;
+@@ -626,6 +630,11 @@ static int do_mlock(unsigned long start, size_t len, int on)
+ 	for (nstart = start ; ; ) {
+ 		vm_flags_t newflags;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++		if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
++			break;
++#endif
++
+ 		/* Here we know that  vma->vm_start <= nstart < vma->vm_end. */
+ 
+ 		newflags = vma->vm_flags & ~VM_LOCKED;
+@@ -739,6 +748,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
+ 	locked += current->mm->locked_vm;
+ 
+ 	/* check against resource limits */
++	gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1);
+ 	if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
+ 		error = do_mlock(start, len, 1);
+ 
+@@ -776,6 +786,11 @@ static int do_mlockall(int flags)
+ 	for (vma = current->mm->mmap; vma ; vma = prev->vm_next) {
+ 		vm_flags_t newflags;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++		if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE))
++			break;
++#endif
++
+ 		newflags = vma->vm_flags & ~VM_LOCKED;
+ 		if (flags & MCL_CURRENT)
+ 			newflags |= VM_LOCKED;
+@@ -807,8 +822,10 @@ SYSCALL_DEFINE1(mlockall, int, flags)
+ 	lock_limit >>= PAGE_SHIFT;
+ 
+ 	ret = -ENOMEM;
++
++	gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm << PAGE_SHIFT, 1);
++
+ 	down_write(&current->mm->mmap_sem);
+-
+ 	if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
+ 	    capable(CAP_IPC_LOCK))
+ 		ret = do_mlockall(flags);
+diff --git a/mm/mmap.c b/mm/mmap.c
+index d4c97ba..916b1d4 100644
+--- a/mm/mmap.c
++++ b/mm/mmap.c
+@@ -37,6 +37,7 @@
+ #include <linux/sched/sysctl.h>
+ #include <linux/notifier.h>
+ #include <linux/memory.h>
++#include <linux/random.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/cacheflush.h>
+@@ -53,6 +54,16 @@
+ #define arch_rebalance_pgtables(addr, len)		(addr)
+ #endif
+ 
++static inline void verify_mm_writelocked(struct mm_struct *mm)
++{
++#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX)
++	if (unlikely(down_read_trylock(&mm->mmap_sem))) {
++		up_read(&mm->mmap_sem);
++		BUG();
++	}
++#endif
++}
++
+ static void unmap_region(struct mm_struct *mm,
+ 		struct vm_area_struct *vma, struct vm_area_struct *prev,
+ 		unsigned long start, unsigned long end);
+@@ -72,16 +83,25 @@ static void unmap_region(struct mm_struct *mm,
+  *		x: (no) no	x: (no) yes	x: (no) yes	x: (yes) yes
+  *
+  */
+-pgprot_t protection_map[16] = {
++pgprot_t protection_map[16] __read_only = {
+ 	__P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
+ 	__S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
+ };
+ 
+-pgprot_t vm_get_page_prot(unsigned long vm_flags)
++pgprot_t vm_get_page_prot(vm_flags_t vm_flags)
+ {
+-	return __pgprot(pgprot_val(protection_map[vm_flags &
++	pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags &
+ 				(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) |
+ 			pgprot_val(arch_vm_get_page_prot(vm_flags)));
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++	if (!(__supported_pte_mask & _PAGE_NX) &&
++	    (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC &&
++	    (vm_flags & (VM_READ | VM_WRITE)))
++		prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot)))));
++#endif
++
++	return prot;
+ }
+ EXPORT_SYMBOL(vm_get_page_prot);
+ 
+@@ -91,6 +111,7 @@ unsigned long sysctl_overcommit_kbytes __read_mostly;
+ int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;
+ unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
+ unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
++unsigned long sysctl_heap_stack_gap __read_mostly = 64*1024;
+ /*
+  * Make sure vm_committed_as in one cacheline and not cacheline shared with
+  * other variables. It can be updated by several CPUs frequently.
+@@ -247,6 +268,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
+ 	struct vm_area_struct *next = vma->vm_next;
+ 
+ 	might_sleep();
++	BUG_ON(vma->vm_mirror);
+ 	if (vma->vm_ops && vma->vm_ops->close)
+ 		vma->vm_ops->close(vma);
+ 	if (vma->vm_file)
+@@ -291,6 +313,12 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
+ 	 * not page aligned -Ram Gupta
+ 	 */
+ 	rlim = rlimit(RLIMIT_DATA);
++#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP
++	/* force a minimum 16MB brk heap on setuid/setgid binaries */
++	if (rlim < PAGE_SIZE && (get_dumpable(mm) != SUID_DUMP_USER) && gr_is_global_nonroot(current_uid()))
++		rlim = 4096 * PAGE_SIZE;
++#endif
++	gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1);
+ 	if (rlim < RLIM_INFINITY && (brk - mm->start_brk) +
+ 			(mm->end_data - mm->start_data) > rlim)
+ 		goto out;
+@@ -945,6 +973,12 @@ static int
+ can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
+ 	struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE)
++		return 0;
++#endif
++
+ 	if (is_mergeable_vma(vma, file, vm_flags) &&
+ 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
+ 		if (vma->vm_pgoff == vm_pgoff)
+@@ -964,6 +998,12 @@ static int
+ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
+ 	struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE)
++		return 0;
++#endif
++
+ 	if (is_mergeable_vma(vma, file, vm_flags) &&
+ 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
+ 		pgoff_t vm_pglen;
+@@ -1006,13 +1046,20 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
+ struct vm_area_struct *vma_merge(struct mm_struct *mm,
+ 			struct vm_area_struct *prev, unsigned long addr,
+ 			unsigned long end, unsigned long vm_flags,
+-		     	struct anon_vma *anon_vma, struct file *file,
++			struct anon_vma *anon_vma, struct file *file,
+ 			pgoff_t pgoff, struct mempolicy *policy)
+ {
+ 	pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
+ 	struct vm_area_struct *area, *next;
+ 	int err;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE;
++	struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL;
++
++	BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end);
++#endif
++
+ 	/*
+ 	 * We later require that vma->vm_flags == vm_flags,
+ 	 * so this tests vma->vm_flags & VM_SPECIAL, too.
+@@ -1028,6 +1075,15 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
+ 	if (next && next->vm_end == end)		/* cases 6, 7, 8 */
+ 		next = next->vm_next;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (prev)
++		prev_m = pax_find_mirror_vma(prev);
++	if (area)
++		area_m = pax_find_mirror_vma(area);
++	if (next)
++		next_m = pax_find_mirror_vma(next);
++#endif
++
+ 	/*
+ 	 * Can it merge with the predecessor?
+ 	 */
+@@ -1047,9 +1103,24 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
+ 							/* cases 1, 6 */
+ 			err = vma_adjust(prev, prev->vm_start,
+ 				next->vm_end, prev->vm_pgoff, NULL);
+-		} else					/* cases 2, 5, 7 */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++			if (!err && prev_m)
++				err = vma_adjust(prev_m, prev_m->vm_start,
++					next_m->vm_end, prev_m->vm_pgoff, NULL);
++#endif
++
++		} else {				/* cases 2, 5, 7 */
+ 			err = vma_adjust(prev, prev->vm_start,
+ 				end, prev->vm_pgoff, NULL);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++			if (!err && prev_m)
++				err = vma_adjust(prev_m, prev_m->vm_start,
++						end_m, prev_m->vm_pgoff, NULL);
++#endif
++
++		}
+ 		if (err)
+ 			return NULL;
+ 		khugepaged_enter_vma_merge(prev);
+@@ -1063,12 +1134,27 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
+  			mpol_equal(policy, vma_policy(next)) &&
+ 			can_vma_merge_before(next, vm_flags,
+ 					anon_vma, file, pgoff+pglen)) {
+-		if (prev && addr < prev->vm_end)	/* case 4 */
++		if (prev && addr < prev->vm_end) {	/* case 4 */
+ 			err = vma_adjust(prev, prev->vm_start,
+ 				addr, prev->vm_pgoff, NULL);
+-		else					/* cases 3, 8 */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++			if (!err && prev_m)
++				err = vma_adjust(prev_m, prev_m->vm_start,
++						addr_m, prev_m->vm_pgoff, NULL);
++#endif
++
++		} else {				/* cases 3, 8 */
+ 			err = vma_adjust(area, addr, next->vm_end,
+ 				next->vm_pgoff - pglen, NULL);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++			if (!err && area_m)
++				err = vma_adjust(area_m, addr_m, next_m->vm_end,
++						next_m->vm_pgoff - pglen, NULL);
++#endif
++
++		}
+ 		if (err)
+ 			return NULL;
+ 		khugepaged_enter_vma_merge(area);
+@@ -1177,8 +1263,10 @@ none:
+ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
+ 						struct file *file, long pages)
+ {
+-	const unsigned long stack_flags
+-		= VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN);
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
++#endif
+ 
+ 	mm->total_vm += pages;
+ 
+@@ -1186,7 +1274,7 @@ void vm_stat_account(struct mm_struct *mm, unsigned long flags,
+ 		mm->shared_vm += pages;
+ 		if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC)
+ 			mm->exec_vm += pages;
+-	} else if (flags & stack_flags)
++	} else if (flags & (VM_GROWSUP|VM_GROWSDOWN))
+ 		mm->stack_vm += pages;
+ }
+ #endif /* CONFIG_PROC_FS */
+@@ -1216,6 +1304,7 @@ static inline int mlock_future_check(struct mm_struct *mm,
+ 		locked += mm->locked_vm;
+ 		lock_limit = rlimit(RLIMIT_MEMLOCK);
+ 		lock_limit >>= PAGE_SHIFT;
++		gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
+ 		if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ 			return -EAGAIN;
+ 	}
+@@ -1242,7 +1331,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
+ 	 * (the exception is when the underlying filesystem is noexec
+ 	 *  mounted, in which case we dont add PROT_EXEC.)
+ 	 */
+-	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
++	if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
+ 		if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC)))
+ 			prot |= PROT_EXEC;
+ 
+@@ -1268,7 +1357,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
+ 	/* Obtain the address to map to. we verify (or select) it and ensure
+ 	 * that it represents a valid section of the address space.
+ 	 */
+-	addr = get_unmapped_area(file, addr, len, pgoff, flags);
++	addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0));
+ 	if (addr & ~PAGE_MASK)
+ 		return addr;
+ 
+@@ -1279,6 +1368,43 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
+ 	vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
+ 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
+ 
++#ifdef CONFIG_PAX_MPROTECT
++	if (mm->pax_flags & MF_PAX_MPROTECT) {
++
++#ifdef CONFIG_GRKERNSEC_RWXMAP_LOG
++		if (file && !pgoff && (vm_flags & VM_EXEC) && mm->binfmt &&
++		    mm->binfmt->handle_mmap)
++			mm->binfmt->handle_mmap(file);
++#endif
++
++#ifndef CONFIG_PAX_MPROTECT_COMPAT
++		if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC)) {
++			gr_log_rwxmmap(file);
++
++#ifdef CONFIG_PAX_EMUPLT
++			vm_flags &= ~VM_EXEC;
++#else
++			return -EPERM;
++#endif
++
++		}
++
++		if (!(vm_flags & VM_EXEC))
++			vm_flags &= ~VM_MAYEXEC;
++#else
++		if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
++			vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
++#endif
++		else
++			vm_flags &= ~VM_MAYWRITE;
++	}
++#endif
++
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++	if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file)
++		vm_flags &= ~VM_PAGEEXEC;
++#endif
++
+ 	if (flags & MAP_LOCKED)
+ 		if (!can_do_mlock())
+ 			return -EPERM;
+@@ -1366,6 +1492,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
+ 			vm_flags |= VM_NORESERVE;
+ 	}
+ 
++	if (!gr_acl_handle_mmap(file, prot))
++		return -EACCES;
++	
+ 	addr = mmap_region(file, addr, len, vm_flags, pgoff);
+ 	if (!IS_ERR_VALUE(addr) &&
+ 	    ((vm_flags & VM_LOCKED) ||
+@@ -1459,7 +1588,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
+ 	vm_flags_t vm_flags = vma->vm_flags;
+ 
+ 	/* If it was private or non-writable, the write bit is already clear */
+-	if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
++	if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED))
+ 		return 0;
+ 
+ 	/* The backer wishes to know when pages are first written to? */
+@@ -1505,7 +1634,22 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
+ 	struct rb_node **rb_link, *rb_parent;
+ 	unsigned long charged = 0;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m = NULL;
++#endif
++
++	/*
++	 * mm->mmap_sem is required to protect against another thread
++	 * changing the mappings in case we sleep.
++	 */
++	verify_mm_writelocked(mm);
++
+ 	/* Check against address space limit. */
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP) || (vm_flags & (VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)))
++#endif
++
+ 	if (!may_expand_vm(mm, len >> PAGE_SHIFT)) {
+ 		unsigned long nr_pages;
+ 
+@@ -1524,11 +1668,10 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
+ 
+ 	/* Clear old maps */
+ 	error = -ENOMEM;
+-munmap_back:
+ 	if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
+ 		if (do_munmap(mm, addr, len))
+ 			return -ENOMEM;
+-		goto munmap_back;
++		BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
+ 	}
+ 
+ 	/*
+@@ -1559,6 +1702,16 @@ munmap_back:
+ 		goto unacct_error;
+ 	}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) {
++		vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++		if (!vma_m) {
++			error = -ENOMEM;
++			goto free_vma;
++		}
++	}
++#endif
++
+ 	vma->vm_mm = mm;
+ 	vma->vm_start = addr;
+ 	vma->vm_end = addr + len;
+@@ -1578,6 +1731,13 @@ munmap_back:
+ 		if (error)
+ 			goto unmap_and_free_vma;
+ 
++#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32)
++		if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) {
++			vma->vm_flags |= VM_PAGEEXEC;
++			vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
++		}
++#endif
++
+ 		/* Can addr have changed??
+ 		 *
+ 		 * Answer: Yes, several device drivers can do it in their
+@@ -1611,6 +1771,12 @@ munmap_back:
+ 	}
+ 
+ 	vma_link(mm, vma, prev, rb_link, rb_parent);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma_m)
++		BUG_ON(pax_mirror_vma(vma_m, vma));
++#endif
++
+ 	/* Once vma denies write, undo our temporary denial count */
+ 	if (vm_flags & VM_DENYWRITE)
+ 		allow_write_access(file);
+@@ -1619,6 +1785,7 @@ out:
+ 	perf_event_mmap(vma);
+ 
+ 	vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
++	track_exec_limit(mm, addr, addr + len, vm_flags);
+ 	if (vm_flags & VM_LOCKED) {
+ 		if (!((vm_flags & VM_SPECIAL) || is_vm_hugetlb_page(vma) ||
+ 					vma == get_gate_vma(current->mm)))
+@@ -1651,6 +1818,12 @@ unmap_and_free_vma:
+ 	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
+ 	charged = 0;
+ free_vma:
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma_m)
++		kmem_cache_free(vm_area_cachep, vma_m);
++#endif
++
+ 	kmem_cache_free(vm_area_cachep, vma);
+ unacct_error:
+ 	if (charged)
+@@ -1658,7 +1831,63 @@ unacct_error:
+ 	return error;
+ }
+ 
+-unsigned long unmapped_area(struct vm_unmapped_area_info *info)
++#ifdef CONFIG_GRKERNSEC_RAND_THREADSTACK
++unsigned long gr_rand_threadstack_offset(const struct mm_struct *mm, const struct file *filp, unsigned long flags)
++{
++	if ((mm->pax_flags & MF_PAX_RANDMMAP) && !filp && (flags & MAP_STACK))
++		return ((prandom_u32() & 0xFF) + 1) << PAGE_SHIFT;
++
++	return 0;
++}
++#endif
++
++bool check_heap_stack_gap(const struct vm_area_struct *vma, unsigned long addr, unsigned long len, unsigned long offset)
++{
++	if (!vma) {
++#ifdef CONFIG_STACK_GROWSUP
++		if (addr > sysctl_heap_stack_gap)
++			vma = find_vma(current->mm, addr - sysctl_heap_stack_gap);
++		else
++			vma = find_vma(current->mm, 0);
++		if (vma && (vma->vm_flags & VM_GROWSUP))
++			return false;
++#endif
++		return true;
++	}
++
++	if (addr + len > vma->vm_start)
++		return false;
++
++	if (vma->vm_flags & VM_GROWSDOWN)
++		return sysctl_heap_stack_gap <= vma->vm_start - addr - len;
++#ifdef CONFIG_STACK_GROWSUP
++	else if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP))
++		return addr - vma->vm_prev->vm_end >= sysctl_heap_stack_gap;
++#endif
++	else if (offset)
++		return offset <= vma->vm_start - addr - len;
++
++	return true;
++}
++
++unsigned long skip_heap_stack_gap(const struct vm_area_struct *vma, unsigned long len, unsigned long offset)
++{
++	if (vma->vm_start < len)
++		return -ENOMEM;
++
++	if (!(vma->vm_flags & VM_GROWSDOWN)) {
++		if (offset <= vma->vm_start - len)
++			return vma->vm_start - len - offset;
++		else
++			return -ENOMEM;
++	}
++
++	if (sysctl_heap_stack_gap <= vma->vm_start - len)
++		return vma->vm_start - len - sysctl_heap_stack_gap;
++	return -ENOMEM;
++}
++
++unsigned long unmapped_area(const struct vm_unmapped_area_info *info)
+ {
+ 	/*
+ 	 * We implement the search by looking for an rbtree node that
+@@ -1706,11 +1935,29 @@ unsigned long unmapped_area(struct vm_unmapped_area_info *info)
+ 			}
+ 		}
+ 
+-		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
++		gap_start = vma->vm_prev ? vma->vm_prev->vm_end: 0;
+ check_current:
+ 		/* Check if current node has a suitable gap */
+ 		if (gap_start > high_limit)
+ 			return -ENOMEM;
++
++		if (gap_end - gap_start > info->threadstack_offset)
++			gap_start += info->threadstack_offset;
++		else
++			gap_start = gap_end;
++
++		if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
++			if (gap_end - gap_start > sysctl_heap_stack_gap)
++				gap_start += sysctl_heap_stack_gap;
++			else
++				gap_start = gap_end;
++		}
++		if (vma->vm_flags & VM_GROWSDOWN) {
++			if (gap_end - gap_start > sysctl_heap_stack_gap)
++				gap_end -= sysctl_heap_stack_gap;
++			else
++				gap_end = gap_start;
++		}
+ 		if (gap_end >= low_limit && gap_end - gap_start >= length)
+ 			goto found;
+ 
+@@ -1760,7 +2007,7 @@ found:
+ 	return gap_start;
+ }
+ 
+-unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
++unsigned long unmapped_area_topdown(const struct vm_unmapped_area_info *info)
+ {
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_area_struct *vma;
+@@ -1814,6 +2061,24 @@ check_current:
+ 		gap_end = vma->vm_start;
+ 		if (gap_end < low_limit)
+ 			return -ENOMEM;
++
++		if (gap_end - gap_start > info->threadstack_offset)
++			gap_end -= info->threadstack_offset;
++		else
++			gap_end = gap_start;
++
++		if (vma->vm_prev && (vma->vm_prev->vm_flags & VM_GROWSUP)) {
++			if (gap_end - gap_start > sysctl_heap_stack_gap)
++				gap_start += sysctl_heap_stack_gap;
++			else
++				gap_start = gap_end;
++		}
++		if (vma->vm_flags & VM_GROWSDOWN) {
++			if (gap_end - gap_start > sysctl_heap_stack_gap)
++				gap_end -= sysctl_heap_stack_gap;
++			else
++				gap_end = gap_start;
++		}
+ 		if (gap_start <= high_limit && gap_end - gap_start >= length)
+ 			goto found;
+ 
+@@ -1877,6 +2142,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	struct mm_struct *mm = current->mm;
+ 	struct vm_area_struct *vma;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 
+ 	if (len > TASK_SIZE - mmap_min_addr)
+ 		return -ENOMEM;
+@@ -1884,11 +2150,15 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	if (flags & MAP_FIXED)
+ 		return addr;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	if (addr) {
+ 		addr = PAGE_ALIGN(addr);
+ 		vma = find_vma(mm, addr);
+ 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
+-		    (!vma || addr + len <= vma->vm_start))
++		    check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -1897,6 +2167,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ 	info.low_limit = mm->mmap_base;
+ 	info.high_limit = TASK_SIZE;
+ 	info.align_mask = 0;
++	info.threadstack_offset = offset;
+ 	return vm_unmapped_area(&info);
+ }
+ #endif	
+@@ -1915,6 +2186,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	struct mm_struct *mm = current->mm;
+ 	unsigned long addr = addr0;
+ 	struct vm_unmapped_area_info info;
++	unsigned long offset = gr_rand_threadstack_offset(mm, filp, flags);
+ 
+ 	/* requested length too big for entire address space */
+ 	if (len > TASK_SIZE - mmap_min_addr)
+@@ -1923,12 +2195,16 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	if (flags & MAP_FIXED)
+ 		return addr;
+ 
++#ifdef CONFIG_PAX_RANDMMAP
++	if (!(mm->pax_flags & MF_PAX_RANDMMAP))
++#endif
++
+ 	/* requesting a specific address */
+ 	if (addr) {
+ 		addr = PAGE_ALIGN(addr);
+ 		vma = find_vma(mm, addr);
+ 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
+-				(!vma || addr + len <= vma->vm_start))
++				check_heap_stack_gap(vma, addr, len, offset))
+ 			return addr;
+ 	}
+ 
+@@ -1937,6 +2213,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
+ 	info.high_limit = mm->mmap_base;
+ 	info.align_mask = 0;
++	info.threadstack_offset = offset;
+ 	addr = vm_unmapped_area(&info);
+ 
+ 	/*
+@@ -1949,6 +2226,12 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
+ 		VM_BUG_ON(addr != -ENOMEM);
+ 		info.flags = 0;
+ 		info.low_limit = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++		if (mm->pax_flags & MF_PAX_RANDMMAP)
++			info.low_limit += mm->delta_mmap;
++#endif
++
+ 		info.high_limit = TASK_SIZE;
+ 		addr = vm_unmapped_area(&info);
+ 	}
+@@ -2049,6 +2332,28 @@ find_vma_prev(struct mm_struct *mm, unsigned long addr,
+ 	return vma;
+ }
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma)
++{
++	struct vm_area_struct *vma_m;
++
++	BUG_ON(!vma || vma->vm_start >= vma->vm_end);
++	if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) {
++		BUG_ON(vma->vm_mirror);
++		return NULL;
++	}
++	BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end);
++	vma_m = vma->vm_mirror;
++	BUG_ON(!vma_m || vma_m->vm_mirror != vma);
++	BUG_ON(vma->vm_file != vma_m->vm_file);
++	BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start);
++	BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff);
++	BUG_ON(vma->anon_vma != vma_m->anon_vma && vma->anon_vma->root != vma_m->anon_vma->root);
++	BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED));
++	return vma_m;
++}
++#endif
++
+ /*
+  * Verify that the stack growth is acceptable and
+  * update accounting. This is shared with both the
+@@ -2066,8 +2371,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
+ 
+ 	/* Stack limit test */
+ 	actual_size = size;
+-	if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
+-		actual_size -= PAGE_SIZE;
++	gr_learn_resource(current, RLIMIT_STACK, actual_size, 1);
+ 	if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
+ 		return -ENOMEM;
+ 
+@@ -2078,6 +2382,7 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
+ 		locked = mm->locked_vm + grow;
+ 		limit = ACCESS_ONCE(rlim[RLIMIT_MEMLOCK].rlim_cur);
+ 		limit >>= PAGE_SHIFT;
++		gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1);
+ 		if (locked > limit && !capable(CAP_IPC_LOCK))
+ 			return -ENOMEM;
+ 	}
+@@ -2107,37 +2412,48 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns
+  * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
+  * vma is the last one with address > vma->vm_end.  Have to extend vma.
+  */
++#ifndef CONFIG_IA64
++static
++#endif
+ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
+ {
+ 	int error;
++	bool locknext;
+ 
+ 	if (!(vma->vm_flags & VM_GROWSUP))
+ 		return -EFAULT;
+ 
++	/* Also guard against wrapping around to address 0. */
++	if (address < PAGE_ALIGN(address+1))
++		address = PAGE_ALIGN(address+1);
++	else
++		return -ENOMEM;
++
+ 	/*
+ 	 * We must make sure the anon_vma is allocated
+ 	 * so that the anon_vma locking is not a noop.
+ 	 */
+ 	if (unlikely(anon_vma_prepare(vma)))
+ 		return -ENOMEM;
++	locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN);
++	if (locknext && anon_vma_prepare(vma->vm_next))
++		return -ENOMEM;
+ 	vma_lock_anon_vma(vma);
++	if (locknext)
++		vma_lock_anon_vma(vma->vm_next);
+ 
+ 	/*
+ 	 * vma->vm_start/vm_end cannot change under us because the caller
+ 	 * is required to hold the mmap_sem in read mode.  We need the
+-	 * anon_vma lock to serialize against concurrent expand_stacks.
+-	 * Also guard against wrapping around to address 0.
++	 * anon_vma locks to serialize against concurrent expand_stacks
++	 * and expand_upwards.
+ 	 */
+-	if (address < PAGE_ALIGN(address+4))
+-		address = PAGE_ALIGN(address+4);
+-	else {
+-		vma_unlock_anon_vma(vma);
+-		return -ENOMEM;
+-	}
+ 	error = 0;
+ 
+ 	/* Somebody else might have raced and expanded it already */
+-	if (address > vma->vm_end) {
++	if (vma->vm_next && (vma->vm_next->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && vma->vm_next->vm_start - address < sysctl_heap_stack_gap)
++		error = -ENOMEM;
++	else if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) {
+ 		unsigned long size, grow;
+ 
+ 		size = address - vma->vm_start;
+@@ -2172,6 +2488,8 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
+ 			}
+ 		}
+ 	}
++	if (locknext)
++		vma_unlock_anon_vma(vma->vm_next);
+ 	vma_unlock_anon_vma(vma);
+ 	khugepaged_enter_vma_merge(vma);
+ 	validate_mm(vma->vm_mm);
+@@ -2186,6 +2504,8 @@ int expand_downwards(struct vm_area_struct *vma,
+ 				   unsigned long address)
+ {
+ 	int error;
++	bool lockprev = false;
++	struct vm_area_struct *prev;
+ 
+ 	/*
+ 	 * We must make sure the anon_vma is allocated
+@@ -2199,6 +2519,15 @@ int expand_downwards(struct vm_area_struct *vma,
+ 	if (error)
+ 		return error;
+ 
++	prev = vma->vm_prev;
++#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
++	lockprev = prev && (prev->vm_flags & VM_GROWSUP);
++#endif
++	if (lockprev && anon_vma_prepare(prev))
++		return -ENOMEM;
++	if (lockprev)
++		vma_lock_anon_vma(prev);
++
+ 	vma_lock_anon_vma(vma);
+ 
+ 	/*
+@@ -2208,9 +2537,17 @@ int expand_downwards(struct vm_area_struct *vma,
+ 	 */
+ 
+ 	/* Somebody else might have raced and expanded it already */
+-	if (address < vma->vm_start) {
++	if (prev && (prev->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)) && address - prev->vm_end < sysctl_heap_stack_gap)
++		error = -ENOMEM;
++	else if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) {
+ 		unsigned long size, grow;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++		struct vm_area_struct *vma_m;
++
++		vma_m = pax_find_mirror_vma(vma);
++#endif
++
+ 		size = vma->vm_end - address;
+ 		grow = (vma->vm_start - address) >> PAGE_SHIFT;
+ 
+@@ -2235,13 +2572,27 @@ int expand_downwards(struct vm_area_struct *vma,
+ 				vma->vm_pgoff -= grow;
+ 				anon_vma_interval_tree_post_update_vma(vma);
+ 				vma_gap_update(vma);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++				if (vma_m) {
++					anon_vma_interval_tree_pre_update_vma(vma_m);
++					vma_m->vm_start -= grow << PAGE_SHIFT;
++					vma_m->vm_pgoff -= grow;
++					anon_vma_interval_tree_post_update_vma(vma_m);
++					vma_gap_update(vma_m);
++				}
++#endif
++
+ 				spin_unlock(&vma->vm_mm->page_table_lock);
+ 
++				track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags);
+ 				perf_event_mmap(vma);
+ 			}
+ 		}
+ 	}
+ 	vma_unlock_anon_vma(vma);
++	if (lockprev)
++		vma_unlock_anon_vma(prev);
+ 	khugepaged_enter_vma_merge(vma);
+ 	validate_mm(vma->vm_mm);
+ 	return error;
+@@ -2339,6 +2690,13 @@ static void remove_vma_list(struct mm_struct *mm, struct vm_area_struct *vma)
+ 	do {
+ 		long nrpages = vma_pages(vma);
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++		if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) {
++			vma = remove_vma(vma);
++			continue;
++		}
++#endif
++
+ 		if (vma->vm_flags & VM_ACCOUNT)
+ 			nr_accounted += nrpages;
+ 		vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
+@@ -2383,6 +2741,16 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	insertion_point = (prev ? &prev->vm_next : &mm->mmap);
+ 	vma->vm_prev = NULL;
+ 	do {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		if (vma->vm_mirror) {
++			BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma);
++			vma->vm_mirror->vm_mirror = NULL;
++			vma->vm_mirror->vm_flags &= ~VM_EXEC;
++			vma->vm_mirror = NULL;
++		}
++#endif
++
+ 		vma_rb_erase(vma, &mm->mm_rb);
+ 		mm->map_count--;
+ 		tail_vma = vma;
+@@ -2410,14 +2778,33 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
+ 	struct vm_area_struct *new;
+ 	int err = -ENOMEM;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m, *new_m = NULL;
++	unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE;
++#endif
++
+ 	if (is_vm_hugetlb_page(vma) && (addr &
+ 					~(huge_page_mask(hstate_vma(vma)))))
+ 		return -EINVAL;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	vma_m = pax_find_mirror_vma(vma);
++#endif
++
+ 	new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
+ 	if (!new)
+ 		goto out_err;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma_m) {
++		new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
++		if (!new_m) {
++			kmem_cache_free(vm_area_cachep, new);
++			goto out_err;
++		}
++	}
++#endif
++
+ 	/* most fields are the same, copy all, and then fixup */
+ 	*new = *vma;
+ 
+@@ -2430,6 +2817,22 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
+ 		new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT);
+ 	}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma_m) {
++		*new_m = *vma_m;
++		INIT_LIST_HEAD(&new_m->anon_vma_chain);
++		new_m->vm_mirror = new;
++		new->vm_mirror = new_m;
++
++		if (new_below)
++			new_m->vm_end = addr_m;
++		else {
++			new_m->vm_start = addr_m;
++			new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT);
++		}
++	}
++#endif
++
+ 	err = vma_dup_policy(vma, new);
+ 	if (err)
+ 		goto out_free_vma;
+@@ -2450,6 +2853,38 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
+ 	else
+ 		err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (!err && vma_m) {
++		struct mempolicy *pol = vma_policy(new);
++
++		if (anon_vma_clone(new_m, vma_m))
++			goto out_free_mpol;
++
++		mpol_get(pol);
++		set_vma_policy(new_m, pol);
++
++		if (new_m->vm_file)
++			get_file(new_m->vm_file);
++
++		if (new_m->vm_ops && new_m->vm_ops->open)
++			new_m->vm_ops->open(new_m);
++
++		if (new_below)
++			err = vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff +
++				((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m);
++		else
++			err = vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m);
++
++		if (err) {
++			if (new_m->vm_ops && new_m->vm_ops->close)
++				new_m->vm_ops->close(new_m);
++			if (new_m->vm_file)
++				fput(new_m->vm_file);
++			mpol_put(pol);
++		}
++	}
++#endif
++
+ 	/* Success. */
+ 	if (!err)
+ 		return 0;
+@@ -2459,10 +2894,18 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
+ 		new->vm_ops->close(new);
+ 	if (new->vm_file)
+ 		fput(new->vm_file);
+-	unlink_anon_vmas(new);
+  out_free_mpol:
+ 	mpol_put(vma_policy(new));
+  out_free_vma:
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (new_m) {
++		unlink_anon_vmas(new_m);
++		kmem_cache_free(vm_area_cachep, new_m);
++	}
++#endif
++
++	unlink_anon_vmas(new);
+ 	kmem_cache_free(vm_area_cachep, new);
+  out_err:
+ 	return err;
+@@ -2475,6 +2918,15 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
+ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+ 	      unsigned long addr, int new_below)
+ {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC) {
++		BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE);
++		if (mm->map_count >= sysctl_max_map_count-1)
++			return -ENOMEM;
++	} else
++#endif
++
+ 	if (mm->map_count >= sysctl_max_map_count)
+ 		return -ENOMEM;
+ 
+@@ -2486,11 +2938,30 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+  * work.  This now handles partial unmappings.
+  * Jeremy Fitzhardinge <jeremy@goop.org>
+  */
++#ifdef CONFIG_PAX_SEGMEXEC
+ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+ {
++	int ret = __do_munmap(mm, start, len);
++	if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC))
++		return ret;
++
++	return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len);
++}
++
++int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
++#else
++int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
++#endif
++{
+ 	unsigned long end;
+ 	struct vm_area_struct *vma, *prev, *last;
+ 
++	/*
++	 * mm->mmap_sem is required to protect against another thread
++	 * changing the mappings in case we sleep.
++	 */
++	verify_mm_writelocked(mm);
++
+ 	if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
+ 		return -EINVAL;
+ 
+@@ -2565,6 +3036,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
+ 	/* Fix up all other VM information */
+ 	remove_vma_list(mm, vma);
+ 
++	track_exec_limit(mm, start, end, 0UL);
++
+ 	return 0;
+ }
+ 
+@@ -2573,6 +3046,13 @@ int vm_munmap(unsigned long start, size_t len)
+ 	int ret;
+ 	struct mm_struct *mm = current->mm;
+ 
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) &&
++	    (len > SEGMEXEC_TASK_SIZE || start > SEGMEXEC_TASK_SIZE-len))
++		return -EINVAL;
++#endif
++
+ 	down_write(&mm->mmap_sem);
+ 	ret = do_munmap(mm, start, len);
+ 	up_write(&mm->mmap_sem);
+@@ -2586,16 +3066,6 @@ SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len)
+ 	return vm_munmap(addr, len);
+ }
+ 
+-static inline void verify_mm_writelocked(struct mm_struct *mm)
+-{
+-#ifdef CONFIG_DEBUG_VM
+-	if (unlikely(down_read_trylock(&mm->mmap_sem))) {
+-		WARN_ON(1);
+-		up_read(&mm->mmap_sem);
+-	}
+-#endif
+-}
+-
+ /*
+  *  this is really a simplified "do_mmap".  it only handles
+  *  anonymous maps.  eventually we may be able to do some
+@@ -2609,6 +3079,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
+ 	struct rb_node ** rb_link, * rb_parent;
+ 	pgoff_t pgoff = addr >> PAGE_SHIFT;
+ 	int error;
++	unsigned long charged;
+ 
+ 	len = PAGE_ALIGN(len);
+ 	if (!len)
+@@ -2616,10 +3087,24 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
+ 
+ 	flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
+ 
++#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)
++	if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) {
++		flags &= ~VM_EXEC;
++
++#ifdef CONFIG_PAX_MPROTECT
++		if (mm->pax_flags & MF_PAX_MPROTECT)
++			flags &= ~VM_MAYEXEC;
++#endif
++
++	}
++#endif
++
+ 	error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
+ 	if (error & ~PAGE_MASK)
+ 		return error;
+ 
++	charged = len >> PAGE_SHIFT;
++
+ 	error = mlock_future_check(mm, mm->def_flags, len);
+ 	if (error)
+ 		return error;
+@@ -2633,21 +3118,20 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
+ 	/*
+ 	 * Clear old maps.  this also does some error checking for us
+ 	 */
+- munmap_back:
+ 	if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent)) {
+ 		if (do_munmap(mm, addr, len))
+ 			return -ENOMEM;
+-		goto munmap_back;
++		BUG_ON(find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent));
+ 	}
+ 
+ 	/* Check against address space limits *after* clearing old maps... */
+-	if (!may_expand_vm(mm, len >> PAGE_SHIFT))
++	if (!may_expand_vm(mm, charged))
+ 		return -ENOMEM;
+ 
+ 	if (mm->map_count > sysctl_max_map_count)
+ 		return -ENOMEM;
+ 
+-	if (security_vm_enough_memory_mm(mm, len >> PAGE_SHIFT))
++	if (security_vm_enough_memory_mm(mm, charged))
+ 		return -ENOMEM;
+ 
+ 	/* Can we just expand an old private anonymous mapping? */
+@@ -2661,7 +3145,7 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
+ 	 */
+ 	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+ 	if (!vma) {
+-		vm_unacct_memory(len >> PAGE_SHIFT);
++		vm_unacct_memory(charged);
+ 		return -ENOMEM;
+ 	}
+ 
+@@ -2675,10 +3159,11 @@ static unsigned long do_brk(unsigned long addr, unsigned long len)
+ 	vma_link(mm, vma, prev, rb_link, rb_parent);
+ out:
+ 	perf_event_mmap(vma);
+-	mm->total_vm += len >> PAGE_SHIFT;
++	mm->total_vm += charged;
+ 	if (flags & VM_LOCKED)
+-		mm->locked_vm += (len >> PAGE_SHIFT);
++		mm->locked_vm += charged;
+ 	vma->vm_flags |= VM_SOFTDIRTY;
++	track_exec_limit(mm, addr, addr + len, flags);
+ 	return addr;
+ }
+ 
+@@ -2740,6 +3225,7 @@ void exit_mmap(struct mm_struct *mm)
+ 	while (vma) {
+ 		if (vma->vm_flags & VM_ACCOUNT)
+ 			nr_accounted += vma_pages(vma);
++		vma->vm_mirror = NULL;
+ 		vma = remove_vma(vma);
+ 	}
+ 	vm_unacct_memory(nr_accounted);
+@@ -2757,6 +3243,13 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
+ 	struct vm_area_struct *prev;
+ 	struct rb_node **rb_link, *rb_parent;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m = NULL;
++#endif
++
++	if (security_mmap_addr(vma->vm_start))
++		return -EPERM;
++
+ 	/*
+ 	 * The vm_pgoff of a purely anonymous vma should be irrelevant
+ 	 * until its first write fault, when page's anon_vma and index
+@@ -2780,7 +3273,21 @@ int insert_vm_struct(struct mm_struct *mm, struct vm_area_struct *vma)
+ 	     security_vm_enough_memory_mm(mm, vma_pages(vma)))
+ 		return -ENOMEM;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) {
++		vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++		if (!vma_m)
++			return -ENOMEM;
++	}
++#endif
++
+ 	vma_link(mm, vma, prev, rb_link, rb_parent);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (vma_m)
++		BUG_ON(pax_mirror_vma(vma_m, vma));
++#endif
++
+ 	return 0;
+ }
+ 
+@@ -2799,6 +3306,8 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
+ 	struct rb_node **rb_link, *rb_parent;
+ 	bool faulted_in_anon_vma = true;
+ 
++	BUG_ON(vma->vm_mirror);
++
+ 	/*
+ 	 * If anonymous vma has not yet been faulted, update new pgoff
+ 	 * to match new location, to increase its chance of merging.
+@@ -2863,6 +3372,39 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
+ 	return NULL;
+ }
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++long pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma)
++{
++	struct vm_area_struct *prev_m;
++	struct rb_node **rb_link_m, *rb_parent_m;
++	struct mempolicy *pol_m;
++
++	BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC));
++	BUG_ON(vma->vm_mirror || vma_m->vm_mirror);
++	BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m)));
++	*vma_m = *vma;
++	INIT_LIST_HEAD(&vma_m->anon_vma_chain);
++	if (anon_vma_clone(vma_m, vma))
++		return -ENOMEM;
++	pol_m = vma_policy(vma_m);
++	mpol_get(pol_m);
++	set_vma_policy(vma_m, pol_m);
++	vma_m->vm_start += SEGMEXEC_TASK_SIZE;
++	vma_m->vm_end += SEGMEXEC_TASK_SIZE;
++	vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED);
++	vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags);
++	if (vma_m->vm_file)
++		get_file(vma_m->vm_file);
++	if (vma_m->vm_ops && vma_m->vm_ops->open)
++		vma_m->vm_ops->open(vma_m);
++	BUG_ON(find_vma_links(vma->vm_mm, vma_m->vm_start, vma_m->vm_end, &prev_m, &rb_link_m, &rb_parent_m));
++	vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m);
++	vma_m->vm_mirror = vma;
++	vma->vm_mirror = vma_m;
++	return 0;
++}
++#endif
++
+ /*
+  * Return true if the calling process may expand its vm space by the passed
+  * number of pages
+@@ -2874,6 +3416,7 @@ int may_expand_vm(struct mm_struct *mm, unsigned long npages)
+ 
+ 	lim = rlimit(RLIMIT_AS) >> PAGE_SHIFT;
+ 
++	gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1);
+ 	if (cur + npages > lim)
+ 		return 0;
+ 	return 1;
+@@ -2944,6 +3487,22 @@ int install_special_mapping(struct mm_struct *mm,
+ 	vma->vm_start = addr;
+ 	vma->vm_end = addr + len;
+ 
++#ifdef CONFIG_PAX_MPROTECT
++	if (mm->pax_flags & MF_PAX_MPROTECT) {
++#ifndef CONFIG_PAX_MPROTECT_COMPAT
++		if ((vm_flags & (VM_WRITE | VM_EXEC)) == (VM_WRITE | VM_EXEC))
++			return -EPERM;
++		if (!(vm_flags & VM_EXEC))
++			vm_flags &= ~VM_MAYEXEC;
++#else
++		if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC)
++			vm_flags &= ~(VM_EXEC | VM_MAYEXEC);
++#endif
++		else
++			vm_flags &= ~VM_MAYWRITE;
++	}
++#endif
++
+ 	vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND | VM_SOFTDIRTY;
+ 	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+ 
+diff --git a/mm/mprotect.c b/mm/mprotect.c
+index 769a67a..414d24f 100644
+--- a/mm/mprotect.c
++++ b/mm/mprotect.c
+@@ -24,10 +24,18 @@
+ #include <linux/migrate.h>
+ #include <linux/perf_event.h>
+ #include <linux/ksm.h>
++#include <linux/sched/sysctl.h>
++
++#ifdef CONFIG_PAX_MPROTECT
++#include <linux/elf.h>
++#include <linux/binfmts.h>
++#endif
++
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+ #include <asm/cacheflush.h>
+ #include <asm/tlbflush.h>
++#include <asm/mmu_context.h>
+ 
+ #ifndef pgprot_modify
+ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
+@@ -214,6 +222,48 @@ unsigned long change_protection(struct vm_area_struct *vma, unsigned long start,
+ 	return pages;
+ }
+ 
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++/* called while holding the mmap semaphor for writing except stack expansion */
++void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot)
++{
++	unsigned long oldlimit, newlimit = 0UL;
++
++	if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || (__supported_pte_mask & _PAGE_NX))
++		return;
++
++	spin_lock(&mm->page_table_lock);
++	oldlimit = mm->context.user_cs_limit;
++	if ((prot & VM_EXEC) && oldlimit < end)
++		/* USER_CS limit moved up */
++		newlimit = end;
++	else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end)
++		/* USER_CS limit moved down */
++		newlimit = start;
++
++	if (newlimit) {
++		mm->context.user_cs_limit = newlimit;
++
++#ifdef CONFIG_SMP
++		wmb();
++		cpus_clear(mm->context.cpu_user_cs_mask);
++		cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask);
++#endif
++
++		set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id());
++	}
++	spin_unlock(&mm->page_table_lock);
++	if (newlimit == end) {
++		struct vm_area_struct *vma = find_vma(mm, oldlimit);
++
++		for (; vma && vma->vm_start < end; vma = vma->vm_next)
++			if (is_vm_hugetlb_page(vma))
++				hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot);
++			else
++				change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma), 0);
++	}
++}
++#endif
++
+ int
+ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
+ 	unsigned long start, unsigned long end, unsigned long newflags)
+@@ -226,11 +276,29 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
+ 	int error;
+ 	int dirty_accountable = 0;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct vm_area_struct *vma_m = NULL;
++	unsigned long start_m, end_m;
++
++	start_m = start + SEGMEXEC_TASK_SIZE;
++	end_m = end + SEGMEXEC_TASK_SIZE;
++#endif
++
+ 	if (newflags == oldflags) {
+ 		*pprev = vma;
+ 		return 0;
+ 	}
+ 
++	if (newflags & (VM_READ | VM_WRITE | VM_EXEC)) {
++		struct vm_area_struct *prev = vma->vm_prev, *next = vma->vm_next;
++
++		if (next && (next->vm_flags & VM_GROWSDOWN) && sysctl_heap_stack_gap > next->vm_start - end)
++			return -ENOMEM;
++
++		if (prev && (prev->vm_flags & VM_GROWSUP) && sysctl_heap_stack_gap > start - prev->vm_end)
++			return -ENOMEM;
++	}
++
+ 	/*
+ 	 * If we make a private mapping writable we increase our commit;
+ 	 * but (without finer accounting) cannot reduce our commit if we
+@@ -247,6 +315,42 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
+ 		}
+ 	}
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) {
++		if (start != vma->vm_start) {
++			error = split_vma(mm, vma, start, 1);
++			if (error)
++				goto fail;
++			BUG_ON(!*pprev || (*pprev)->vm_next == vma);
++			*pprev = (*pprev)->vm_next;
++		}
++
++		if (end != vma->vm_end) {
++			error = split_vma(mm, vma, end, 0);
++			if (error)
++				goto fail;
++		}
++
++		if (pax_find_mirror_vma(vma)) {
++			error = __do_munmap(mm, start_m, end_m - start_m);
++			if (error)
++				goto fail;
++		} else {
++			vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
++			if (!vma_m) {
++				error = -ENOMEM;
++				goto fail;
++			}
++			vma->vm_flags = newflags;
++			error = pax_mirror_vma(vma_m, vma);
++			if (error) {
++				vma->vm_flags = oldflags;
++				goto fail;
++			}
++		}
++	}
++#endif
++
+ 	/*
+ 	 * First try to merge with previous and/or next vma.
+ 	 */
+@@ -277,9 +381,21 @@ success:
+ 	 * vm_flags and vm_page_prot are protected by the mmap_sem
+ 	 * held in write mode.
+ 	 */
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (newflags & VM_EXEC) && ((vma->vm_flags ^ newflags) & VM_READ))
++		pax_find_mirror_vma(vma)->vm_flags ^= VM_READ;
++#endif
++
+ 	vma->vm_flags = newflags;
++
++#ifdef CONFIG_PAX_MPROTECT
++	if (mm->binfmt && mm->binfmt->handle_mprotect)
++		mm->binfmt->handle_mprotect(vma, newflags);
++#endif
++
+ 	vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
+-					  vm_get_page_prot(newflags));
++					  vm_get_page_prot(vma->vm_flags));
+ 
+ 	if (vma_wants_writenotify(vma)) {
+ 		vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
+@@ -318,6 +434,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
+ 	end = start + len;
+ 	if (end <= start)
+ 		return -ENOMEM;
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (current->mm->pax_flags & MF_PAX_SEGMEXEC) {
++		if (end > SEGMEXEC_TASK_SIZE)
++			return -EINVAL;
++	} else
++#endif
++
++	if (end > TASK_SIZE)
++		return -EINVAL;
++
+ 	if (!arch_validate_prot(prot))
+ 		return -EINVAL;
+ 
+@@ -325,7 +452,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
+ 	/*
+ 	 * Does the application expect PROT_READ to imply PROT_EXEC:
+ 	 */
+-	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
++	if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC))
+ 		prot |= PROT_EXEC;
+ 
+ 	vm_flags = calc_vm_prot_bits(prot);
+@@ -357,6 +484,11 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
+ 	if (start > vma->vm_start)
+ 		prev = vma;
+ 
++#ifdef CONFIG_PAX_MPROTECT
++	if (current->mm->binfmt && current->mm->binfmt->handle_mprotect)
++		current->mm->binfmt->handle_mprotect(vma, vm_flags);
++#endif
++
+ 	for (nstart = start ; ; ) {
+ 		unsigned long newflags;
+ 
+@@ -367,6 +499,14 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
+ 
+ 		/* newflags >> 4 shift VM_MAY% in place of VM_% */
+ 		if ((newflags & ~(newflags >> 4)) & (VM_READ | VM_WRITE | VM_EXEC)) {
++			if (prot & (PROT_WRITE | PROT_EXEC))
++				gr_log_rwxmprotect(vma);
++
++			error = -EACCES;
++			goto out;
++		}
++
++		if (!gr_acl_handle_mprotect(vma->vm_file, prot)) {
+ 			error = -EACCES;
+ 			goto out;
+ 		}
+@@ -381,6 +521,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
+ 		error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
+ 		if (error)
+ 			goto out;
++
++		track_exec_limit(current->mm, nstart, tmp, vm_flags);
++
+ 		nstart = tmp;
+ 
+ 		if (nstart < prev->vm_end)
+diff --git a/mm/mremap.c b/mm/mremap.c
+index 05f1180..c3cde48 100644
+--- a/mm/mremap.c
++++ b/mm/mremap.c
+@@ -144,6 +144,12 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
+ 			continue;
+ 		pte = ptep_get_and_clear(mm, old_addr, old_pte);
+ 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);
++
++#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT
++		if (!(__supported_pte_mask & _PAGE_NX) && pte_present(pte) && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC)
++			pte = pte_exprotect(pte);
++#endif
++
+ 		pte = move_soft_dirty_pte(pte);
+ 		set_pte_at(mm, new_addr, new_pte, pte);
+ 	}
+@@ -344,6 +350,11 @@ static struct vm_area_struct *vma_to_resize(unsigned long addr,
+ 	if (is_vm_hugetlb_page(vma))
+ 		goto Einval;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (pax_find_mirror_vma(vma))
++		goto Einval;
++#endif
++
+ 	/* We can't remap across vm area boundaries */
+ 	if (old_len > vma->vm_end - addr)
+ 		goto Efault;
+@@ -399,20 +410,25 @@ static unsigned long mremap_to(unsigned long addr, unsigned long old_len,
+ 	unsigned long ret = -EINVAL;
+ 	unsigned long charged = 0;
+ 	unsigned long map_flags;
++	unsigned long pax_task_size = TASK_SIZE;
+ 
+ 	if (new_addr & ~PAGE_MASK)
+ 		goto out;
+ 
+-	if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len)
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++	pax_task_size -= PAGE_SIZE;
++
++	if (new_len > TASK_SIZE || new_addr > pax_task_size - new_len)
+ 		goto out;
+ 
+ 	/* Check if the location we're moving into overlaps the
+ 	 * old location at all, and fail if it does.
+ 	 */
+-	if ((new_addr <= addr) && (new_addr+new_len) > addr)
+-		goto out;
+-
+-	if ((addr <= new_addr) && (addr+old_len) > new_addr)
++	if (addr + old_len > new_addr && new_addr + new_len > addr)
+ 		goto out;
+ 
+ 	ret = do_munmap(mm, new_addr, new_len);
+@@ -481,6 +497,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
+ 	unsigned long ret = -EINVAL;
+ 	unsigned long charged = 0;
+ 	bool locked = false;
++	unsigned long pax_task_size = TASK_SIZE;
+ 
+ 	if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE))
+ 		return ret;
+@@ -502,6 +519,17 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
+ 	if (!new_len)
+ 		return ret;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (mm->pax_flags & MF_PAX_SEGMEXEC)
++		pax_task_size = SEGMEXEC_TASK_SIZE;
++#endif
++
++	pax_task_size -= PAGE_SIZE;
++
++	if (new_len > pax_task_size || addr > pax_task_size-new_len ||
++	    old_len > pax_task_size || addr > pax_task_size-old_len)
++		return ret;
++
+ 	down_write(&current->mm->mmap_sem);
+ 
+ 	if (flags & MREMAP_FIXED) {
+@@ -552,6 +580,7 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
+ 				new_addr = addr;
+ 			}
+ 			ret = addr;
++			track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags);
+ 			goto out;
+ 		}
+ 	}
+@@ -575,7 +604,12 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len,
+ 			goto out;
+ 		}
+ 
++		map_flags = vma->vm_flags;
+ 		ret = move_vma(vma, addr, old_len, new_len, new_addr, &locked);
++		if (!(ret & ~PAGE_MASK)) {
++			track_exec_limit(current->mm, addr, addr + old_len, 0UL);
++			track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags);
++		}
+ 	}
+ out:
+ 	if (ret & ~PAGE_MASK)
+diff --git a/mm/nommu.c b/mm/nommu.c
+index 76b3f90..d79b8e2 100644
+--- a/mm/nommu.c
++++ b/mm/nommu.c
+@@ -66,7 +66,6 @@ int sysctl_max_map_count = DEFAULT_MAX_MAP_COUNT;
+ int sysctl_nr_trim_pages = CONFIG_NOMMU_INITIAL_TRIM_EXCESS;
+ unsigned long sysctl_user_reserve_kbytes __read_mostly = 1UL << 17; /* 128MB */
+ unsigned long sysctl_admin_reserve_kbytes __read_mostly = 1UL << 13; /* 8MB */
+-int heap_stack_gap = 0;
+ 
+ atomic_long_t mmap_pages_allocated;
+ 
+@@ -853,15 +852,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
+ EXPORT_SYMBOL(find_vma);
+ 
+ /*
+- * find a VMA
+- * - we don't extend stack VMAs under NOMMU conditions
+- */
+-struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
+-{
+-	return find_vma(mm, addr);
+-}
+-
+-/*
+  * expand a stack to a given address
+  * - not supported under NOMMU conditions
+  */
+@@ -1572,6 +1562,7 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+ 
+ 	/* most fields are the same, copy all, and then fixup */
+ 	*new = *vma;
++	INIT_LIST_HEAD(&new->anon_vma_chain);
+ 	*region = *vma->vm_region;
+ 	new->vm_region = region;
+ 
+@@ -2001,8 +1992,8 @@ int generic_file_remap_pages(struct vm_area_struct *vma, unsigned long addr,
+ }
+ EXPORT_SYMBOL(generic_file_remap_pages);
+ 
+-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+-		unsigned long addr, void *buf, int len, int write)
++static ssize_t __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
++		unsigned long addr, void *buf, size_t len, int write)
+ {
+ 	struct vm_area_struct *vma;
+ 
+@@ -2043,8 +2034,8 @@ static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+  *
+  * The caller must hold a reference on @mm.
+  */
+-int access_remote_vm(struct mm_struct *mm, unsigned long addr,
+-		void *buf, int len, int write)
++ssize_t access_remote_vm(struct mm_struct *mm, unsigned long addr,
++		void *buf, size_t len, int write)
+ {
+ 	return __access_remote_vm(NULL, mm, addr, buf, len, write);
+ }
+@@ -2053,7 +2044,7 @@ int access_remote_vm(struct mm_struct *mm, unsigned long addr,
+  * Access another process' address space.
+  * - source/target buffer must be kernel space
+  */
+-int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write)
++ssize_t access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, size_t len, int write)
+ {
+ 	struct mm_struct *mm;
+ 
+diff --git a/mm/page-writeback.c b/mm/page-writeback.c
+index 656a549..51174f2 100644
+--- a/mm/page-writeback.c
++++ b/mm/page-writeback.c
+@@ -685,7 +685,7 @@ static long long pos_ratio_polynom(unsigned long setpoint,
+  *   card's bdi_dirty may rush to many times higher than bdi_setpoint.
+  * - the bdi dirty thresh drops quickly due to change of JBOD workload
+  */
+-static unsigned long bdi_position_ratio(struct backing_dev_info *bdi,
++static unsigned long __intentional_overflow(-1) bdi_position_ratio(struct backing_dev_info *bdi,
+ 					unsigned long thresh,
+ 					unsigned long bg_thresh,
+ 					unsigned long dirty,
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index 0479732..4c6aee3 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -61,6 +61,7 @@
+ #include <linux/page-debug-flags.h>
+ #include <linux/hugetlb.h>
+ #include <linux/sched/rt.h>
++#include <linux/random.h>
+ 
+ #include <asm/sections.h>
+ #include <asm/tlbflush.h>
+@@ -355,7 +356,7 @@ out:
+  * This usage means that zero-order pages may not be compound.
+  */
+ 
+-static void free_compound_page(struct page *page)
++void free_compound_page(struct page *page)
+ {
+ 	__free_pages_ok(page, compound_order(page));
+ }
+@@ -749,6 +750,10 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
+ 	int i;
+ 	int bad = 0;
+ 
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	unsigned long index = 1UL << order;
++#endif
++
+ 	trace_mm_page_free(page, order);
+ 	kmemcheck_free_shadow(page, order);
+ 
+@@ -765,6 +770,12 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
+ 		debug_check_no_obj_freed(page_address(page),
+ 					   PAGE_SIZE << order);
+ 	}
++
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	for (; index; --index)
++		sanitize_highpage(page + index - 1);
++#endif
++
+ 	arch_free_page(page, order);
+ 	kernel_map_pages(page, 1 << order, 0);
+ 
+@@ -788,6 +799,20 @@ static void __free_pages_ok(struct page *page, unsigned int order)
+ 	local_irq_restore(flags);
+ }
+ 
++#ifdef CONFIG_PAX_LATENT_ENTROPY
++bool __meminitdata extra_latent_entropy;
++
++static int __init setup_pax_extra_latent_entropy(char *str)
++{
++	extra_latent_entropy = true;
++	return 0;
++}
++early_param("pax_extra_latent_entropy", setup_pax_extra_latent_entropy);
++
++volatile u64 latent_entropy __latent_entropy;
++EXPORT_SYMBOL(latent_entropy);
++#endif
++
+ void __init __free_pages_bootmem(struct page *page, unsigned int order)
+ {
+ 	unsigned int nr_pages = 1 << order;
+@@ -803,6 +828,19 @@ void __init __free_pages_bootmem(struct page *page, unsigned int order)
+ 	__ClearPageReserved(p);
+ 	set_page_count(p, 0);
+ 
++#ifdef CONFIG_PAX_LATENT_ENTROPY
++	if (extra_latent_entropy && !PageHighMem(page) && page_to_pfn(page) < 0x100000) {
++		u64 hash = 0;
++		size_t index, end = PAGE_SIZE * nr_pages / sizeof hash;
++		const u64 *data = lowmem_page_address(page);
++
++		for (index = 0; index < end; index++)
++			hash ^= hash + data[index];
++		latent_entropy ^= hash;
++		add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
++	}
++#endif
++
+ 	page_zone(page)->managed_pages += nr_pages;
+ 	set_page_refcounted(page);
+ 	__free_pages(page, order);
+@@ -931,8 +969,10 @@ static int prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags)
+ 	arch_alloc_page(page, order);
+ 	kernel_map_pages(page, 1 << order, 1);
+ 
++#ifndef CONFIG_PAX_MEMORY_SANITIZE
+ 	if (gfp_flags & __GFP_ZERO)
+ 		prep_zero_page(page, order, gfp_flags);
++#endif
+ 
+ 	if (order && (gfp_flags & __GFP_COMP))
+ 		prep_compound_page(page, order);
+@@ -1946,7 +1986,7 @@ static void reset_alloc_batches(struct zone *preferred_zone)
+ 	do {
+ 		mod_zone_page_state(zone, NR_ALLOC_BATCH,
+ 			high_wmark_pages(zone) - low_wmark_pages(zone) -
+-			atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
++			atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
+ 		zone_clear_flag(zone, ZONE_FAIR_DEPLETED);
+ 	} while (zone++ != preferred_zone);
+ }
+@@ -5709,7 +5749,7 @@ static void __setup_per_zone_wmarks(void)
+ 
+ 		__mod_zone_page_state(zone, NR_ALLOC_BATCH,
+ 			high_wmark_pages(zone) - low_wmark_pages(zone) -
+-			atomic_long_read(&zone->vm_stat[NR_ALLOC_BATCH]));
++			atomic_long_read_unchecked(&zone->vm_stat[NR_ALLOC_BATCH]));
+ 
+ 		setup_zone_migrate_reserve(zone);
+ 		spin_unlock_irqrestore(&zone->lock, flags);
+@@ -6650,4 +6690,4 @@ void dump_page(struct page *page, char *reason)
+ {
+ 	dump_page_badflags(page, reason, 0);
+ }
+-EXPORT_SYMBOL_GPL(dump_page);
++EXPORT_SYMBOL(dump_page);
+diff --git a/mm/page_io.c b/mm/page_io.c
+index 7c59ef6..1358905 100644
+--- a/mm/page_io.c
++++ b/mm/page_io.c
+@@ -260,7 +260,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc,
+ 		struct file *swap_file = sis->swap_file;
+ 		struct address_space *mapping = swap_file->f_mapping;
+ 		struct iovec iov = {
+-			.iov_base = kmap(page),
++			.iov_base = (void __force_user *)kmap(page),
+ 			.iov_len  = PAGE_SIZE,
+ 		};
+ 
+diff --git a/mm/percpu.c b/mm/percpu.c
+index a2a54a8..43ecb68 100644
+--- a/mm/percpu.c
++++ b/mm/percpu.c
+@@ -122,7 +122,7 @@ static unsigned int pcpu_low_unit_cpu __read_mostly;
+ static unsigned int pcpu_high_unit_cpu __read_mostly;
+ 
+ /* the address of the first chunk which starts with the kernel static area */
+-void *pcpu_base_addr __read_mostly;
++void *pcpu_base_addr __read_only;
+ EXPORT_SYMBOL_GPL(pcpu_base_addr);
+ 
+ static const int *pcpu_unit_map __read_mostly;		/* cpu -> unit */
+diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
+index a8b9199..dfb79e0 100644
+--- a/mm/pgtable-generic.c
++++ b/mm/pgtable-generic.c
+@@ -195,7 +195,7 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
+ 	pmd_t entry = *pmdp;
+ 	if (pmd_numa(entry))
+ 		entry = pmd_mknonnuma(entry);
+-	set_pmd_at(vma->vm_mm, address, pmdp, pmd_mknotpresent(*pmdp));
++	set_pmd_at(vma->vm_mm, address, pmdp, pmd_mknotpresent(entry));
+ 	flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
+ }
+ #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
+index fd26d04..0cea1b0 100644
+--- a/mm/process_vm_access.c
++++ b/mm/process_vm_access.c
+@@ -13,6 +13,7 @@
+ #include <linux/uio.h>
+ #include <linux/sched.h>
+ #include <linux/highmem.h>
++#include <linux/security.h>
+ #include <linux/ptrace.h>
+ #include <linux/slab.h>
+ #include <linux/syscalls.h>
+@@ -258,19 +259,19 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
+ 	size_t iov_l_curr_offset = 0;
+ 	ssize_t iov_len;
+ 
++	return -ENOSYS; // PaX: until properly audited
++
+ 	/*
+ 	 * Work out how many pages of struct pages we're going to need
+ 	 * when eventually calling get_user_pages
+ 	 */
+ 	for (i = 0; i < riovcnt; i++) {
+ 		iov_len = rvec[i].iov_len;
+-		if (iov_len > 0) {
+-			nr_pages_iov = ((unsigned long)rvec[i].iov_base
+-					+ iov_len)
+-				/ PAGE_SIZE - (unsigned long)rvec[i].iov_base
+-				/ PAGE_SIZE + 1;
+-			nr_pages = max(nr_pages, nr_pages_iov);
+-		}
++		if (iov_len <= 0)
++			continue;
++		nr_pages_iov = ((unsigned long)rvec[i].iov_base + iov_len) / PAGE_SIZE -
++				(unsigned long)rvec[i].iov_base / PAGE_SIZE + 1;
++		nr_pages = max(nr_pages, nr_pages_iov);
+ 	}
+ 
+ 	if (nr_pages == 0)
+@@ -298,6 +299,11 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
+ 		goto free_proc_pages;
+ 	}
+ 
++	if (gr_handle_ptrace(task, vm_write ? PTRACE_POKETEXT : PTRACE_ATTACH)) {
++		rc = -EPERM;
++		goto put_task_struct;
++	}
++
+ 	mm = mm_access(task, PTRACE_MODE_ATTACH);
+ 	if (!mm || IS_ERR(mm)) {
+ 		rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
+diff --git a/mm/rmap.c b/mm/rmap.c
+index cab9820..cb05259 100644
+--- a/mm/rmap.c
++++ b/mm/rmap.c
+@@ -164,6 +164,10 @@ int anon_vma_prepare(struct vm_area_struct *vma)
+ 	struct anon_vma *anon_vma = vma->anon_vma;
+ 	struct anon_vma_chain *avc;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++	struct anon_vma_chain *avc_m = NULL;
++#endif
++
+ 	might_sleep();
+ 	if (unlikely(!anon_vma)) {
+ 		struct mm_struct *mm = vma->vm_mm;
+@@ -173,6 +177,12 @@ int anon_vma_prepare(struct vm_area_struct *vma)
+ 		if (!avc)
+ 			goto out_enomem;
+ 
++#ifdef CONFIG_PAX_SEGMEXEC
++		avc_m = anon_vma_chain_alloc(GFP_KERNEL);
++		if (!avc_m)
++			goto out_enomem_free_avc;
++#endif
++
+ 		anon_vma = find_mergeable_anon_vma(vma);
+ 		allocated = NULL;
+ 		if (!anon_vma) {
+@@ -186,6 +196,18 @@ int anon_vma_prepare(struct vm_area_struct *vma)
+ 		/* page_table_lock to protect against threads */
+ 		spin_lock(&mm->page_table_lock);
+ 		if (likely(!vma->anon_vma)) {
++
++#ifdef CONFIG_PAX_SEGMEXEC
++			struct vm_area_struct *vma_m = pax_find_mirror_vma(vma);
++
++			if (vma_m) {
++				BUG_ON(vma_m->anon_vma);
++				vma_m->anon_vma = anon_vma;
++				anon_vma_chain_link(vma_m, avc_m, anon_vma);
++				avc_m = NULL;
++			}
++#endif
++
+ 			vma->anon_vma = anon_vma;
+ 			anon_vma_chain_link(vma, avc, anon_vma);
+ 			allocated = NULL;
+@@ -196,12 +218,24 @@ int anon_vma_prepare(struct vm_area_struct *vma)
+ 
+ 		if (unlikely(allocated))
+ 			put_anon_vma(allocated);
++
++#ifdef CONFIG_PAX_SEGMEXEC
++		if (unlikely(avc_m))
++			anon_vma_chain_free(avc_m);
++#endif
++
+ 		if (unlikely(avc))
+ 			anon_vma_chain_free(avc);
+ 	}
+ 	return 0;
+ 
+  out_enomem_free_avc:
++
++#ifdef CONFIG_PAX_SEGMEXEC
++	if (avc_m)
++		anon_vma_chain_free(avc_m);
++#endif
++
+ 	anon_vma_chain_free(avc);
+  out_enomem:
+ 	return -ENOMEM;
+@@ -237,7 +271,7 @@ static inline void unlock_anon_vma_root(struct anon_vma *root)
+  * Attach the anon_vmas from src to dst.
+  * Returns 0 on success, -ENOMEM on failure.
+  */
+-int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
++int anon_vma_clone(struct vm_area_struct *dst, const struct vm_area_struct *src)
+ {
+ 	struct anon_vma_chain *avc, *pavc;
+ 	struct anon_vma *root = NULL;
+@@ -270,7 +304,7 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
+  * the corresponding VMA in the parent process is attached to.
+  * Returns 0 on success, non-zero on failure.
+  */
+-int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
++int anon_vma_fork(struct vm_area_struct *vma, const struct vm_area_struct *pvma)
+ {
+ 	struct anon_vma_chain *avc;
+ 	struct anon_vma *anon_vma;
+@@ -376,8 +410,10 @@ static void anon_vma_ctor(void *data)
+ void __init anon_vma_init(void)
+ {
+ 	anon_vma_cachep = kmem_cache_create("anon_vma", sizeof(struct anon_vma),
+-			0, SLAB_DESTROY_BY_RCU|SLAB_PANIC, anon_vma_ctor);
+-	anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain, SLAB_PANIC);
++			0, SLAB_DESTROY_BY_RCU|SLAB_PANIC|SLAB_NO_SANITIZE,
++			anon_vma_ctor);
++	anon_vma_chain_cachep = KMEM_CACHE(anon_vma_chain,
++			SLAB_PANIC|SLAB_NO_SANITIZE);
+ }
+ 
+ /*
+diff --git a/mm/shmem.c b/mm/shmem.c
+index 85d8a1a..da4e20f 100644
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -33,7 +33,7 @@
+ #include <linux/swap.h>
+ #include <linux/aio.h>
+ 
+-static struct vfsmount *shm_mnt;
++struct vfsmount *shm_mnt;
+ 
+ #ifdef CONFIG_SHMEM
+ /*
+@@ -77,7 +77,7 @@ static struct vfsmount *shm_mnt;
+ #define BOGO_DIRENT_SIZE 20
+ 
+ /* Symlink up to this size is kmalloc'ed instead of using a swappable page */
+-#define SHORT_SYMLINK_LEN 128
++#define SHORT_SYMLINK_LEN 64
+ 
+ /*
+  * shmem_fallocate communicates with shmem_fault or shmem_writepage via
+@@ -2249,6 +2249,11 @@ static const struct xattr_handler *shmem_xattr_handlers[] = {
+ static int shmem_xattr_validate(const char *name)
+ {
+ 	struct { const char *prefix; size_t len; } arr[] = {
++
++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
++		{ XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN},
++#endif
++
+ 		{ XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN },
+ 		{ XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN }
+ 	};
+@@ -2304,6 +2309,15 @@ static int shmem_setxattr(struct dentry *dentry, const char *name,
+ 	if (err)
+ 		return err;
+ 
++#ifdef CONFIG_PAX_XATTR_PAX_FLAGS
++	if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
++		if (strcmp(name, XATTR_NAME_PAX_FLAGS))
++			return -EOPNOTSUPP;
++		if (size > 8)
++			return -EINVAL;
++	}
++#endif
++
+ 	return simple_xattr_set(&info->xattrs, name, value, size, flags);
+ }
+ 
+@@ -2616,8 +2630,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
+ 	int err = -ENOMEM;
+ 
+ 	/* Round up to L1_CACHE_BYTES to resist false sharing */
+-	sbinfo = kzalloc(max((int)sizeof(struct shmem_sb_info),
+-				L1_CACHE_BYTES), GFP_KERNEL);
++	sbinfo = kzalloc(max(sizeof(struct shmem_sb_info), L1_CACHE_BYTES), GFP_KERNEL);
+ 	if (!sbinfo)
+ 		return -ENOMEM;
+ 
+diff --git a/mm/slab.c b/mm/slab.c
+index 0b1c2a5..4deff8e 100644
+--- a/mm/slab.c
++++ b/mm/slab.c
+@@ -300,10 +300,12 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
+ 		if ((x)->max_freeable < i)				\
+ 			(x)->max_freeable = i;				\
+ 	} while (0)
+-#define STATS_INC_ALLOCHIT(x)	atomic_inc(&(x)->allochit)
+-#define STATS_INC_ALLOCMISS(x)	atomic_inc(&(x)->allocmiss)
+-#define STATS_INC_FREEHIT(x)	atomic_inc(&(x)->freehit)
+-#define STATS_INC_FREEMISS(x)	atomic_inc(&(x)->freemiss)
++#define STATS_INC_ALLOCHIT(x)	atomic_inc_unchecked(&(x)->allochit)
++#define STATS_INC_ALLOCMISS(x)	atomic_inc_unchecked(&(x)->allocmiss)
++#define STATS_INC_FREEHIT(x)	atomic_inc_unchecked(&(x)->freehit)
++#define STATS_INC_FREEMISS(x)	atomic_inc_unchecked(&(x)->freemiss)
++#define STATS_INC_SANITIZED(x)	atomic_inc_unchecked(&(x)->sanitized)
++#define STATS_INC_NOT_SANITIZED(x) atomic_inc_unchecked(&(x)->not_sanitized)
+ #else
+ #define	STATS_INC_ACTIVE(x)	do { } while (0)
+ #define	STATS_DEC_ACTIVE(x)	do { } while (0)
+@@ -320,6 +322,8 @@ static void kmem_cache_node_init(struct kmem_cache_node *parent)
+ #define STATS_INC_ALLOCMISS(x)	do { } while (0)
+ #define STATS_INC_FREEHIT(x)	do { } while (0)
+ #define STATS_INC_FREEMISS(x)	do { } while (0)
++#define STATS_INC_SANITIZED(x)	do { } while (0)
++#define STATS_INC_NOT_SANITIZED(x) do { } while (0)
+ #endif
+ 
+ #if DEBUG
+@@ -436,7 +440,7 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
+  *   reciprocal_divide(offset, cache->reciprocal_buffer_size)
+  */
+ static inline unsigned int obj_to_index(const struct kmem_cache *cache,
+-					const struct page *page, void *obj)
++					const struct page *page, const void *obj)
+ {
+ 	u32 offset = (obj - page->s_mem);
+ 	return reciprocal_divide(offset, cache->reciprocal_buffer_size);
+@@ -1536,12 +1540,12 @@ void __init kmem_cache_init(void)
+ 	 */
+ 
+ 	kmalloc_caches[INDEX_AC] = create_kmalloc_cache("kmalloc-ac",
+-					kmalloc_size(INDEX_AC), ARCH_KMALLOC_FLAGS);
++					kmalloc_size(INDEX_AC), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
+ 
+ 	if (INDEX_AC != INDEX_NODE)
+ 		kmalloc_caches[INDEX_NODE] =
+ 			create_kmalloc_cache("kmalloc-node",
+-				kmalloc_size(INDEX_NODE), ARCH_KMALLOC_FLAGS);
++				kmalloc_size(INDEX_NODE), SLAB_USERCOPY | ARCH_KMALLOC_FLAGS);
+ 
+ 	slab_early_init = 0;
+ 
+@@ -3477,6 +3481,20 @@ static inline void __cache_free(struct kmem_cache *cachep, void *objp,
+ 	struct array_cache *ac = cpu_cache_get(cachep);
+ 
+ 	check_irq_off();
++
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	if (cachep->flags & (SLAB_POISON | SLAB_NO_SANITIZE))
++		STATS_INC_NOT_SANITIZED(cachep);
++	else {
++		memset(objp, PAX_MEMORY_SANITIZE_VALUE, cachep->object_size);
++
++		if (cachep->ctor)
++			cachep->ctor(objp);
++
++		STATS_INC_SANITIZED(cachep);
++	}
++#endif
++
+ 	kmemleak_free_recursive(objp, cachep->flags);
+ 	objp = cache_free_debugcheck(cachep, objp, caller);
+ 
+@@ -3705,6 +3723,7 @@ void kfree(const void *objp)
+ 
+ 	if (unlikely(ZERO_OR_NULL_PTR(objp)))
+ 		return;
++	VM_BUG_ON(!virt_addr_valid(objp));
+ 	local_irq_save(flags);
+ 	kfree_debugcheck(objp);
+ 	c = virt_to_cache(objp);
+@@ -4146,14 +4165,22 @@ void slabinfo_show_stats(struct seq_file *m, struct kmem_cache *cachep)
+ 	}
+ 	/* cpu stats */
+ 	{
+-		unsigned long allochit = atomic_read(&cachep->allochit);
+-		unsigned long allocmiss = atomic_read(&cachep->allocmiss);
+-		unsigned long freehit = atomic_read(&cachep->freehit);
+-		unsigned long freemiss = atomic_read(&cachep->freemiss);
++		unsigned long allochit = atomic_read_unchecked(&cachep->allochit);
++		unsigned long allocmiss = atomic_read_unchecked(&cachep->allocmiss);
++		unsigned long freehit = atomic_read_unchecked(&cachep->freehit);
++		unsigned long freemiss = atomic_read_unchecked(&cachep->freemiss);
+ 
+ 		seq_printf(m, " : cpustat %6lu %6lu %6lu %6lu",
+ 			   allochit, allocmiss, freehit, freemiss);
+ 	}
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	{
++		unsigned long sanitized = atomic_read_unchecked(&cachep->sanitized);
++		unsigned long not_sanitized = atomic_read_unchecked(&cachep->not_sanitized);
++
++		seq_printf(m, " : pax %6lu %6lu", sanitized, not_sanitized);
++	}
++#endif
+ #endif
+ }
+ 
+@@ -4374,13 +4401,69 @@ static const struct file_operations proc_slabstats_operations = {
+ static int __init slab_proc_init(void)
+ {
+ #ifdef CONFIG_DEBUG_SLAB_LEAK
+-	proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
++	proc_create("slab_allocators", S_IRUSR, NULL, &proc_slabstats_operations);
+ #endif
+ 	return 0;
+ }
+ module_init(slab_proc_init);
+ #endif
+ 
++bool is_usercopy_object(const void *ptr)
++{
++	struct page *page;
++	struct kmem_cache *cachep;
++
++	if (ZERO_OR_NULL_PTR(ptr))
++		return false;
++
++	if (!slab_is_available())
++		return false;
++
++	if (!virt_addr_valid(ptr))
++		return false;
++
++	page = virt_to_head_page(ptr);
++
++	if (!PageSlab(page))
++		return false;
++
++	cachep = page->slab_cache;
++	return cachep->flags & SLAB_USERCOPY;
++}
++
++#ifdef CONFIG_PAX_USERCOPY
++const char *check_heap_object(const void *ptr, unsigned long n)
++{
++	struct page *page;
++	struct kmem_cache *cachep;
++	unsigned int objnr;
++	unsigned long offset;
++
++	if (ZERO_OR_NULL_PTR(ptr))
++		return "<null>";
++
++	if (!virt_addr_valid(ptr))
++		return NULL;
++
++	page = virt_to_head_page(ptr);
++
++	if (!PageSlab(page))
++		return NULL;
++
++	cachep = page->slab_cache;
++	if (!(cachep->flags & SLAB_USERCOPY))
++		return cachep->name;
++
++	objnr = obj_to_index(cachep, page, ptr);
++	BUG_ON(objnr >= cachep->num);
++	offset = ptr - index_to_obj(cachep, page, objnr) - obj_offset(cachep);
++	if (offset <= cachep->object_size && n <= cachep->object_size - offset)
++		return NULL;
++
++	return cachep->name;
++}
++#endif
++
+ /**
+  * ksize - get the actual amount of memory allocated for a given object
+  * @objp: Pointer to the object
+diff --git a/mm/slab.h b/mm/slab.h
+index 8184a7c..81ed62c 100644
+--- a/mm/slab.h
++++ b/mm/slab.h
+@@ -32,6 +32,20 @@ extern struct list_head slab_caches;
+ /* The slab cache that manages slab cache information */
+ extern struct kmem_cache *kmem_cache;
+ 
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++#ifdef CONFIG_X86_64
++#define PAX_MEMORY_SANITIZE_VALUE	'\xfe'
++#else
++#define PAX_MEMORY_SANITIZE_VALUE	'\xff'
++#endif
++enum pax_sanitize_mode {
++	PAX_SANITIZE_SLAB_OFF = 0,
++	PAX_SANITIZE_SLAB_FAST,
++	PAX_SANITIZE_SLAB_FULL,
++};
++extern enum pax_sanitize_mode pax_sanitize_slab;
++#endif
++
+ unsigned long calculate_alignment(unsigned long flags,
+ 		unsigned long align, unsigned long size);
+ 
+@@ -67,7 +81,8 @@ __kmem_cache_alias(struct mem_cgroup *memcg, const char *name, size_t size,
+ 
+ /* Legal flag mask for kmem_cache_create(), for various configurations */
+ #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | SLAB_PANIC | \
+-			 SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS )
++			 SLAB_DESTROY_BY_RCU | SLAB_DEBUG_OBJECTS | \
++			 SLAB_USERCOPY | SLAB_NO_SANITIZE)
+ 
+ #if defined(CONFIG_DEBUG_SLAB)
+ #define SLAB_DEBUG_FLAGS (SLAB_RED_ZONE | SLAB_POISON | SLAB_STORE_USER)
+@@ -257,6 +272,9 @@ static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
+ 		return s;
+ 
+ 	page = virt_to_head_page(x);
++
++	BUG_ON(!PageSlab(page));
++
+ 	cachep = page->slab_cache;
+ 	if (slab_equal_or_root(cachep, s))
+ 		return cachep;
+diff --git a/mm/slab_common.c b/mm/slab_common.c
+index f149e67..97a8b4b 100644
+--- a/mm/slab_common.c
++++ b/mm/slab_common.c
+@@ -23,11 +23,35 @@
+ 
+ #include "slab.h"
+ 
+-enum slab_state slab_state;
++enum slab_state slab_state __read_only;
+ LIST_HEAD(slab_caches);
+ DEFINE_MUTEX(slab_mutex);
+ struct kmem_cache *kmem_cache;
+ 
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++enum pax_sanitize_mode pax_sanitize_slab __read_only = PAX_SANITIZE_SLAB_FAST;
++static int __init pax_sanitize_slab_setup(char *str)
++{
++	if (!str)
++		return 0;
++
++	if (!strcmp(str, "0") || !strcmp(str, "off")) {
++		pr_info("PaX slab sanitization: %s\n", "disabled");
++		pax_sanitize_slab = PAX_SANITIZE_SLAB_OFF;
++	} else if (!strcmp(str, "1") || !strcmp(str, "fast")) {
++		pr_info("PaX slab sanitization: %s\n", "fast");
++		pax_sanitize_slab = PAX_SANITIZE_SLAB_FAST;
++	} else if (!strcmp(str, "full")) {
++		pr_info("PaX slab sanitization: %s\n", "full");
++		pax_sanitize_slab = PAX_SANITIZE_SLAB_FULL;
++	} else
++		pr_err("PaX slab sanitization: unsupported option '%s'\n", str);
++
++	return 0;
++}
++early_param("pax_sanitize_slab", pax_sanitize_slab_setup);
++#endif
++
+ #ifdef CONFIG_DEBUG_VM
+ static int kmem_cache_sanity_check(struct mem_cgroup *memcg, const char *name,
+ 				   size_t size)
+@@ -200,6 +224,13 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const char *name, size_t size,
+ 	 */
+ 	flags &= CACHE_CREATE_MASK;
+ 
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	if (pax_sanitize_slab == PAX_SANITIZE_SLAB_OFF || (flags & SLAB_DESTROY_BY_RCU))
++		flags |= SLAB_NO_SANITIZE;
++	else if (pax_sanitize_slab == PAX_SANITIZE_SLAB_FULL)
++		flags &= ~SLAB_NO_SANITIZE;
++#endif
++
+ 	s = __kmem_cache_alias(memcg, name, size, align, flags, ctor);
+ 	if (s)
+ 		goto out_unlock;
+@@ -225,7 +256,7 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const char *name, size_t size,
+ 	if (err)
+ 		goto out_free_cache;
+ 
+-	s->refcount = 1;
++	atomic_set(&s->refcount, 1);
+ 	list_add(&s->list, &slab_caches);
+ 	memcg_register_cache(s);
+ 
+@@ -278,8 +309,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
+ 
+ 	get_online_cpus();
+ 	mutex_lock(&slab_mutex);
+-	s->refcount--;
+-	if (!s->refcount) {
++	if (atomic_dec_and_test(&s->refcount)) {
+ 		list_del(&s->list);
+ 
+ 		if (!__kmem_cache_shutdown(s)) {
+@@ -326,7 +356,7 @@ void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t siz
+ 		panic("Creation of kmalloc slab %s size=%zu failed. Reason %d\n",
+ 					name, size, err);
+ 
+-	s->refcount = -1;	/* Exempt from merging for now */
++	atomic_set(&s->refcount, -1);	/* Exempt from merging for now */
+ }
+ 
+ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
+@@ -339,7 +369,7 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
+ 
+ 	create_boot_cache(s, name, size, flags);
+ 	list_add(&s->list, &slab_caches);
+-	s->refcount = 1;
++	atomic_set(&s->refcount, 1);
+ 	return s;
+ }
+ 
+@@ -351,6 +381,11 @@ struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1];
+ EXPORT_SYMBOL(kmalloc_dma_caches);
+ #endif
+ 
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++struct kmem_cache *kmalloc_usercopy_caches[KMALLOC_SHIFT_HIGH + 1];
++EXPORT_SYMBOL(kmalloc_usercopy_caches);
++#endif
++
+ /*
+  * Conversion table for small slabs sizes / 8 to the index in the
+  * kmalloc array. This is necessary for slabs < 192 since we have non power
+@@ -415,6 +450,13 @@ struct kmem_cache *kmalloc_slab(size_t size, gfp_t flags)
+ 		return kmalloc_dma_caches[index];
+ 
+ #endif
++
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++	if (unlikely((flags & GFP_USERCOPY)))
++		return kmalloc_usercopy_caches[index];
++
++#endif
++
+ 	return kmalloc_caches[index];
+ }
+ 
+@@ -471,7 +513,7 @@ void __init create_kmalloc_caches(unsigned long flags)
+ 	for (i = KMALLOC_SHIFT_LOW; i <= KMALLOC_SHIFT_HIGH; i++) {
+ 		if (!kmalloc_caches[i]) {
+ 			kmalloc_caches[i] = create_kmalloc_cache(NULL,
+-							1 << i, flags);
++							1 << i, SLAB_USERCOPY | flags);
+ 		}
+ 
+ 		/*
+@@ -480,10 +522,10 @@ void __init create_kmalloc_caches(unsigned long flags)
+ 		 * earlier power of two caches
+ 		 */
+ 		if (KMALLOC_MIN_SIZE <= 32 && !kmalloc_caches[1] && i == 6)
+-			kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, flags);
++			kmalloc_caches[1] = create_kmalloc_cache(NULL, 96, SLAB_USERCOPY | flags);
+ 
+ 		if (KMALLOC_MIN_SIZE <= 64 && !kmalloc_caches[2] && i == 7)
+-			kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, flags);
++			kmalloc_caches[2] = create_kmalloc_cache(NULL, 192, SLAB_USERCOPY | flags);
+ 	}
+ 
+ 	/* Kmalloc array is now usable */
+@@ -516,6 +558,23 @@ void __init create_kmalloc_caches(unsigned long flags)
+ 		}
+ 	}
+ #endif
++
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++	for (i = 0; i <= KMALLOC_SHIFT_HIGH; i++) {
++		struct kmem_cache *s = kmalloc_caches[i];
++
++		if (s) {
++			int size = kmalloc_size(i);
++			char *n = kasprintf(GFP_NOWAIT,
++				 "usercopy-kmalloc-%d", size);
++
++			BUG_ON(!n);
++			kmalloc_usercopy_caches[i] = create_kmalloc_cache(n,
++				size, SLAB_USERCOPY | flags);
++		}
++	}
++#endif
++
+ }
+ #endif /* !CONFIG_SLOB */
+ 
+@@ -556,6 +615,9 @@ void print_slabinfo_header(struct seq_file *m)
+ 	seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> "
+ 		 "<error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>");
+ 	seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	seq_puts(m, " : pax <sanitized> <not_sanitized>");
++#endif
+ #endif
+ 	seq_putc(m, '\n');
+ }
+diff --git a/mm/slob.c b/mm/slob.c
+index 4bf8809..a0a0b9f 100644
+--- a/mm/slob.c
++++ b/mm/slob.c
+@@ -157,7 +157,7 @@ static void set_slob(slob_t *s, slobidx_t size, slob_t *next)
+ /*
+  * Return the size of a slob block.
+  */
+-static slobidx_t slob_units(slob_t *s)
++static slobidx_t slob_units(const slob_t *s)
+ {
+ 	if (s->units > 0)
+ 		return s->units;
+@@ -167,7 +167,7 @@ static slobidx_t slob_units(slob_t *s)
+ /*
+  * Return the next free slob block pointer after this one.
+  */
+-static slob_t *slob_next(slob_t *s)
++static slob_t *slob_next(const slob_t *s)
+ {
+ 	slob_t *base = (slob_t *)((unsigned long)s & PAGE_MASK);
+ 	slobidx_t next;
+@@ -182,14 +182,14 @@ static slob_t *slob_next(slob_t *s)
+ /*
+  * Returns true if s is the last free block in its page.
+  */
+-static int slob_last(slob_t *s)
++static int slob_last(const slob_t *s)
+ {
+ 	return !((unsigned long)slob_next(s) & ~PAGE_MASK);
+ }
+ 
+-static void *slob_new_pages(gfp_t gfp, int order, int node)
++static struct page *slob_new_pages(gfp_t gfp, unsigned int order, int node)
+ {
+-	void *page;
++	struct page *page;
+ 
+ #ifdef CONFIG_NUMA
+ 	if (node != NUMA_NO_NODE)
+@@ -201,14 +201,18 @@ static void *slob_new_pages(gfp_t gfp, int order, int node)
+ 	if (!page)
+ 		return NULL;
+ 
+-	return page_address(page);
++	__SetPageSlab(page);
++	return page;
+ }
+ 
+-static void slob_free_pages(void *b, int order)
++static void slob_free_pages(struct page *sp, int order)
+ {
+ 	if (current->reclaim_state)
+ 		current->reclaim_state->reclaimed_slab += 1 << order;
+-	free_pages((unsigned long)b, order);
++	__ClearPageSlab(sp);
++	page_mapcount_reset(sp);
++	sp->private = 0;
++	__free_pages(sp, order);
+ }
+ 
+ /*
+@@ -313,15 +317,15 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
+ 
+ 	/* Not enough space: must allocate a new page */
+ 	if (!b) {
+-		b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
+-		if (!b)
++		sp = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
++		if (!sp)
+ 			return NULL;
+-		sp = virt_to_page(b);
+-		__SetPageSlab(sp);
++		b = page_address(sp);
+ 
+ 		spin_lock_irqsave(&slob_lock, flags);
+ 		sp->units = SLOB_UNITS(PAGE_SIZE);
+ 		sp->freelist = b;
++		sp->private = 0;
+ 		INIT_LIST_HEAD(&sp->list);
+ 		set_slob(b, SLOB_UNITS(PAGE_SIZE), b + SLOB_UNITS(PAGE_SIZE));
+ 		set_slob_page_free(sp, slob_list);
+@@ -337,7 +341,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
+ /*
+  * slob_free: entry point into the slob allocator.
+  */
+-static void slob_free(void *block, int size)
++static void slob_free(struct kmem_cache *c, void *block, int size)
+ {
+ 	struct page *sp;
+ 	slob_t *prev, *next, *b = (slob_t *)block;
+@@ -359,12 +363,15 @@ static void slob_free(void *block, int size)
+ 		if (slob_page_free(sp))
+ 			clear_slob_page_free(sp);
+ 		spin_unlock_irqrestore(&slob_lock, flags);
+-		__ClearPageSlab(sp);
+-		page_mapcount_reset(sp);
+-		slob_free_pages(b, 0);
++		slob_free_pages(sp, 0);
+ 		return;
+ 	}
+ 
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	if (pax_sanitize_slab && !(c && (c->flags & SLAB_NO_SANITIZE)))
++		memset(block, PAX_MEMORY_SANITIZE_VALUE, size);
++#endif
++
+ 	if (!slob_page_free(sp)) {
+ 		/* This slob page is about to become partially free. Easy! */
+ 		sp->units = units;
+@@ -424,11 +431,10 @@ out:
+  */
+ 
+ static __always_inline void *
+-__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
++__do_kmalloc_node_align(size_t size, gfp_t gfp, int node, unsigned long caller, int align)
+ {
+-	unsigned int *m;
+-	int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+-	void *ret;
++	slob_t *m;
++	void *ret = NULL;
+ 
+ 	gfp &= gfp_allowed_mask;
+ 
+@@ -442,23 +448,41 @@ __do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
+ 
+ 		if (!m)
+ 			return NULL;
+-		*m = size;
++		BUILD_BUG_ON(ARCH_KMALLOC_MINALIGN < 2 * SLOB_UNIT);
++		BUILD_BUG_ON(ARCH_SLAB_MINALIGN < 2 * SLOB_UNIT);
++		m[0].units = size;
++		m[1].units = align;
+ 		ret = (void *)m + align;
+ 
+ 		trace_kmalloc_node(caller, ret,
+ 				   size, size + align, gfp, node);
+ 	} else {
+ 		unsigned int order = get_order(size);
++		struct page *page;
+ 
+ 		if (likely(order))
+ 			gfp |= __GFP_COMP;
+-		ret = slob_new_pages(gfp, order, node);
++		page = slob_new_pages(gfp, order, node);
++		if (page) {
++			ret = page_address(page);
++			page->private = size;
++		}
+ 
+ 		trace_kmalloc_node(caller, ret,
+ 				   size, PAGE_SIZE << order, gfp, node);
+ 	}
+ 
+-	kmemleak_alloc(ret, size, 1, gfp);
++	return ret;
++}
++
++static __always_inline void *
++__do_kmalloc_node(size_t size, gfp_t gfp, int node, unsigned long caller)
++{
++	int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
++	void *ret = __do_kmalloc_node_align(size, gfp, node, caller, align);
++
++	if (!ZERO_OR_NULL_PTR(ret))
++		kmemleak_alloc(ret, size, 1, gfp);
+ 	return ret;
+ }
+ 
+@@ -493,34 +517,112 @@ void kfree(const void *block)
+ 		return;
+ 	kmemleak_free(block);
+ 
++	VM_BUG_ON(!virt_addr_valid(block));
+ 	sp = virt_to_page(block);
+-	if (PageSlab(sp)) {
++	VM_BUG_ON(!PageSlab(sp));
++	if (!sp->private) {
+ 		int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+-		unsigned int *m = (unsigned int *)(block - align);
+-		slob_free(m, *m + align);
+-	} else
++		slob_t *m = (slob_t *)(block - align);
++		slob_free(NULL, m, m[0].units + align);
++	} else {
++		__ClearPageSlab(sp);
++		page_mapcount_reset(sp);
++		sp->private = 0;
+ 		__free_pages(sp, compound_order(sp));
++	}
+ }
+ EXPORT_SYMBOL(kfree);
+ 
++bool is_usercopy_object(const void *ptr)
++{
++	if (!slab_is_available())
++		return false;
++
++	// PAX: TODO
++
++	return false;
++}
++
++#ifdef CONFIG_PAX_USERCOPY
++const char *check_heap_object(const void *ptr, unsigned long n)
++{
++	struct page *page;
++	const slob_t *free;
++	const void *base;
++	unsigned long flags;
++
++	if (ZERO_OR_NULL_PTR(ptr))
++		return "<null>";
++
++	if (!virt_addr_valid(ptr))
++		return NULL;
++
++	page = virt_to_head_page(ptr);
++	if (!PageSlab(page))
++		return NULL;
++
++	if (page->private) {
++		base = page;
++		if (base <= ptr && n <= page->private - (ptr - base))
++			return NULL;
++		return "<slob>";
++	}
++
++	/* some tricky double walking to find the chunk */
++	spin_lock_irqsave(&slob_lock, flags);
++	base = (void *)((unsigned long)ptr & PAGE_MASK);
++	free = page->freelist;
++
++	while (!slob_last(free) && (void *)free <= ptr) {
++		base = free + slob_units(free);
++		free = slob_next(free);
++	}
++
++	while (base < (void *)free) {
++		slobidx_t m = ((slob_t *)base)[0].units, align = ((slob_t *)base)[1].units;
++		int size = SLOB_UNIT * SLOB_UNITS(m + align);
++		int offset;
++
++		if (ptr < base + align)
++			break;
++
++		offset = ptr - base - align;
++		if (offset >= m) {
++			base += size;
++			continue;
++		}
++
++		if (n > m - offset)
++			break;
++
++		spin_unlock_irqrestore(&slob_lock, flags);
++		return NULL;
++	}
++
++	spin_unlock_irqrestore(&slob_lock, flags);
++	return "<slob>";
++}
++#endif
++
+ /* can't use ksize for kmem_cache_alloc memory, only kmalloc */
+ size_t ksize(const void *block)
+ {
+ 	struct page *sp;
+ 	int align;
+-	unsigned int *m;
++	slob_t *m;
+ 
+ 	BUG_ON(!block);
+ 	if (unlikely(block == ZERO_SIZE_PTR))
+ 		return 0;
+ 
+ 	sp = virt_to_page(block);
+-	if (unlikely(!PageSlab(sp)))
+-		return PAGE_SIZE << compound_order(sp);
++	VM_BUG_ON(!PageSlab(sp));
++	if (sp->private)
++		return sp->private;
+ 
+ 	align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
+-	m = (unsigned int *)(block - align);
+-	return SLOB_UNITS(*m) * SLOB_UNIT;
++	m = (slob_t *)(block - align);
++	return SLOB_UNITS(m[0].units) * SLOB_UNIT;
+ }
+ EXPORT_SYMBOL(ksize);
+ 
+@@ -536,23 +638,33 @@ int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
+ 
+ void *slob_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
+ {
+-	void *b;
++	void *b = NULL;
+ 
+ 	flags &= gfp_allowed_mask;
+ 
+ 	lockdep_trace_alloc(flags);
+ 
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++	b = __do_kmalloc_node_align(c->size, flags, node, _RET_IP_, c->align);
++#else
+ 	if (c->size < PAGE_SIZE) {
+ 		b = slob_alloc(c->size, flags, c->align, node);
+ 		trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
+ 					    SLOB_UNITS(c->size) * SLOB_UNIT,
+ 					    flags, node);
+ 	} else {
+-		b = slob_new_pages(flags, get_order(c->size), node);
++		struct page *sp;
++
++		sp = slob_new_pages(flags, get_order(c->size), node);
++		if (sp) {
++			b = page_address(sp);
++			sp->private = c->size;
++		}
+ 		trace_kmem_cache_alloc_node(_RET_IP_, b, c->object_size,
+ 					    PAGE_SIZE << get_order(c->size),
+ 					    flags, node);
+ 	}
++#endif
+ 
+ 	if (b && c->ctor)
+ 		c->ctor(b);
+@@ -582,12 +694,16 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t gfp, int node)
+ EXPORT_SYMBOL(kmem_cache_alloc_node);
+ #endif
+ 
+-static void __kmem_cache_free(void *b, int size)
++static void __kmem_cache_free(struct kmem_cache *c, void *b, int size)
+ {
+-	if (size < PAGE_SIZE)
+-		slob_free(b, size);
++	struct page *sp;
++
++	sp = virt_to_page(b);
++	BUG_ON(!PageSlab(sp));
++	if (!sp->private)
++		slob_free(c, b, size);
+ 	else
+-		slob_free_pages(b, get_order(size));
++		slob_free_pages(sp, get_order(size));
+ }
+ 
+ static void kmem_rcu_free(struct rcu_head *head)
+@@ -595,22 +711,36 @@ static void kmem_rcu_free(struct rcu_head *head)
+ 	struct slob_rcu *slob_rcu = (struct slob_rcu *)head;
+ 	void *b = (void *)slob_rcu - (slob_rcu->size - sizeof(struct slob_rcu));
+ 
+-	__kmem_cache_free(b, slob_rcu->size);
++	__kmem_cache_free(NULL, b, slob_rcu->size);
+ }
+ 
+ void kmem_cache_free(struct kmem_cache *c, void *b)
+ {
++	int size = c->size;
++
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++	if (size + c->align < PAGE_SIZE) {
++		size += c->align;
++		b -= c->align;
++	}
++#endif
++
+ 	kmemleak_free_recursive(b, c->flags);
+ 	if (unlikely(c->flags & SLAB_DESTROY_BY_RCU)) {
+ 		struct slob_rcu *slob_rcu;
+-		slob_rcu = b + (c->size - sizeof(struct slob_rcu));
+-		slob_rcu->size = c->size;
++		slob_rcu = b + (size - sizeof(struct slob_rcu));
++		slob_rcu->size = size;
+ 		call_rcu(&slob_rcu->head, kmem_rcu_free);
+ 	} else {
+-		__kmem_cache_free(b, c->size);
++		__kmem_cache_free(c, b, size);
+ 	}
+ 
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++	trace_kfree(_RET_IP_, b);
++#else
+ 	trace_kmem_cache_free(_RET_IP_, b);
++#endif
++
+ }
+ EXPORT_SYMBOL(kmem_cache_free);
+ 
+diff --git a/mm/slub.c b/mm/slub.c
+index 7611f14..3d5e216 100644
+--- a/mm/slub.c
++++ b/mm/slub.c
+@@ -207,7 +207,7 @@ struct track {
+ 
+ enum track_item { TRACK_ALLOC, TRACK_FREE };
+ 
+-#ifdef CONFIG_SYSFS
++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ static int sysfs_slab_add(struct kmem_cache *);
+ static int sysfs_slab_alias(struct kmem_cache *, const char *);
+ static void sysfs_slab_remove(struct kmem_cache *);
+@@ -545,7 +545,7 @@ static void print_track(const char *s, struct track *t)
+ 	if (!t->addr)
+ 		return;
+ 
+-	printk(KERN_ERR "INFO: %s in %pS age=%lu cpu=%u pid=%d\n",
++	printk(KERN_ERR "INFO: %s in %pA age=%lu cpu=%u pid=%d\n",
+ 		s, (void *)t->addr, jiffies - t->when, t->cpu, t->pid);
+ #ifdef CONFIG_STACKTRACE
+ 	{
+@@ -2664,6 +2664,14 @@ static __always_inline void slab_free(struct kmem_cache *s,
+ 
+ 	slab_free_hook(s, x);
+ 
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	if (!(s->flags & SLAB_NO_SANITIZE)) {
++		memset(x, PAX_MEMORY_SANITIZE_VALUE, s->object_size);
++		if (s->ctor)
++			s->ctor(x);
++	}
++#endif
++
+ redo:
+ 	/*
+ 	 * Determine the currently cpus per cpu slab.
+@@ -2731,7 +2739,7 @@ static int slub_min_objects;
+  * Merge control. If this is set then no merging of slab caches will occur.
+  * (Could be removed. This was introduced to pacify the merge skeptics.)
+  */
+-static int slub_nomerge;
++static int slub_nomerge = 1;
+ 
+ /*
+  * Calculate the order of allocation given an slab object size.
+@@ -3012,6 +3020,9 @@ static int calculate_sizes(struct kmem_cache *s, int forced_order)
+ 	s->inuse = size;
+ 
+ 	if (((flags & (SLAB_DESTROY_BY_RCU | SLAB_POISON)) ||
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++		(!(flags & SLAB_NO_SANITIZE)) ||
++#endif
+ 		s->ctor)) {
+ 		/*
+ 		 * Relocate free pointer after the object if it is not
+@@ -3357,6 +3368,59 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
+ EXPORT_SYMBOL(__kmalloc_node);
+ #endif
+ 
++bool is_usercopy_object(const void *ptr)
++{
++	struct page *page;
++	struct kmem_cache *s;
++
++	if (ZERO_OR_NULL_PTR(ptr))
++		return false;
++
++	if (!slab_is_available())
++		return false;
++
++	if (!virt_addr_valid(ptr))
++		return false;
++
++	page = virt_to_head_page(ptr);
++
++	if (!PageSlab(page))
++		return false;
++
++	s = page->slab_cache;
++	return s->flags & SLAB_USERCOPY;
++}
++
++#ifdef CONFIG_PAX_USERCOPY
++const char *check_heap_object(const void *ptr, unsigned long n)
++{
++	struct page *page;
++	struct kmem_cache *s;
++	unsigned long offset;
++
++	if (ZERO_OR_NULL_PTR(ptr))
++		return "<null>";
++
++	if (!virt_addr_valid(ptr))
++		return NULL;
++
++	page = virt_to_head_page(ptr);
++
++	if (!PageSlab(page))
++		return NULL;
++
++	s = page->slab_cache;
++	if (!(s->flags & SLAB_USERCOPY))
++		return s->name;
++
++	offset = (ptr - page_address(page)) % s->size;
++	if (offset <= s->object_size && n <= s->object_size - offset)
++		return NULL;
++
++	return s->name;
++}
++#endif
++
+ size_t ksize(const void *object)
+ {
+ 	struct page *page;
+@@ -3385,6 +3449,7 @@ void kfree(const void *x)
+ 	if (unlikely(ZERO_OR_NULL_PTR(x)))
+ 		return;
+ 
++	VM_BUG_ON(!virt_addr_valid(x));
+ 	page = virt_to_head_page(x);
+ 	if (unlikely(!PageSlab(page))) {
+ 		BUG_ON(!PageCompound(page));
+@@ -3690,7 +3755,7 @@ static int slab_unmergeable(struct kmem_cache *s)
+ 	/*
+ 	 * We may have set a slab to be unmergeable during bootstrap.
+ 	 */
+-	if (s->refcount < 0)
++	if (atomic_read(&s->refcount) < 0)
+ 		return 1;
+ 
+ 	return 0;
+@@ -3748,7 +3813,7 @@ __kmem_cache_alias(struct mem_cgroup *memcg, const char *name, size_t size,
+ 
+ 	s = find_mergeable(memcg, size, align, flags, name, ctor);
+ 	if (s) {
+-		s->refcount++;
++		atomic_inc(&s->refcount);
+ 		/*
+ 		 * Adjust the object sizes so that we clear
+ 		 * the complete object on kzalloc.
+@@ -3757,7 +3822,7 @@ __kmem_cache_alias(struct mem_cgroup *memcg, const char *name, size_t size,
+ 		s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *)));
+ 
+ 		if (sysfs_slab_alias(s, name)) {
+-			s->refcount--;
++			atomic_dec(&s->refcount);
+ 			s = NULL;
+ 		}
+ 	}
+@@ -3877,7 +3942,7 @@ void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
+ }
+ #endif
+ 
+-#ifdef CONFIG_SYSFS
++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ static int count_inuse(struct page *page)
+ {
+ 	return page->inuse;
+@@ -4161,7 +4226,11 @@ static int list_locations(struct kmem_cache *s, char *buf,
+ 		len += sprintf(buf + len, "%7ld ", l->count);
+ 
+ 		if (l->addr)
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++			len += sprintf(buf + len, "%pS", NULL);
++#else
+ 			len += sprintf(buf + len, "%pS", (void *)l->addr);
++#endif
+ 		else
+ 			len += sprintf(buf + len, "<not-available>");
+ 
+@@ -4266,12 +4335,12 @@ static void resiliency_test(void)
+ 	validate_slab_cache(kmalloc_caches[9]);
+ }
+ #else
+-#ifdef CONFIG_SYSFS
++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ static void resiliency_test(void) {};
+ #endif
+ #endif
+ 
+-#ifdef CONFIG_SYSFS
++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ enum slab_stat_type {
+ 	SL_ALL,			/* All slabs */
+ 	SL_PARTIAL,		/* Only partially allocated slabs */
+@@ -4511,13 +4580,17 @@ static ssize_t ctor_show(struct kmem_cache *s, char *buf)
+ {
+ 	if (!s->ctor)
+ 		return 0;
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	return sprintf(buf, "%pS\n", NULL);
++#else
+ 	return sprintf(buf, "%pS\n", s->ctor);
++#endif
+ }
+ SLAB_ATTR_RO(ctor);
+ 
+ static ssize_t aliases_show(struct kmem_cache *s, char *buf)
+ {
+-	return sprintf(buf, "%d\n", s->refcount - 1);
++	return sprintf(buf, "%d\n", atomic_read(&s->refcount) - 1);
+ }
+ SLAB_ATTR_RO(aliases);
+ 
+@@ -4605,6 +4678,22 @@ static ssize_t cache_dma_show(struct kmem_cache *s, char *buf)
+ SLAB_ATTR_RO(cache_dma);
+ #endif
+ 
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++static ssize_t usercopy_show(struct kmem_cache *s, char *buf)
++{
++	return sprintf(buf, "%d\n", !!(s->flags & SLAB_USERCOPY));
++}
++SLAB_ATTR_RO(usercopy);
++#endif
++
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++static ssize_t sanitize_show(struct kmem_cache *s, char *buf)
++{
++	return sprintf(buf, "%d\n", !(s->flags & SLAB_NO_SANITIZE));
++}
++SLAB_ATTR_RO(sanitize);
++#endif
++
+ static ssize_t destroy_by_rcu_show(struct kmem_cache *s, char *buf)
+ {
+ 	return sprintf(buf, "%d\n", !!(s->flags & SLAB_DESTROY_BY_RCU));
+@@ -4939,6 +5028,12 @@ static struct attribute *slab_attrs[] = {
+ #ifdef CONFIG_ZONE_DMA
+ 	&cache_dma_attr.attr,
+ #endif
++#ifdef CONFIG_PAX_USERCOPY_SLABS
++	&usercopy_attr.attr,
++#endif
++#ifdef CONFIG_PAX_MEMORY_SANITIZE
++	&sanitize_attr.attr,
++#endif
+ #ifdef CONFIG_NUMA
+ 	&remote_node_defrag_ratio_attr.attr,
+ #endif
+@@ -5171,6 +5266,7 @@ static char *create_unique_id(struct kmem_cache *s)
+ 	return name;
+ }
+ 
++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ static int sysfs_slab_add(struct kmem_cache *s)
+ {
+ 	int err;
+@@ -5228,6 +5324,7 @@ static void sysfs_slab_remove(struct kmem_cache *s)
+ 	kobject_del(&s->kobj);
+ 	kobject_put(&s->kobj);
+ }
++#endif
+ 
+ /*
+  * Need to buffer aliases during bootup until sysfs becomes
+@@ -5241,6 +5338,7 @@ struct saved_alias {
+ 
+ static struct saved_alias *alias_list;
+ 
++#if defined(CONFIG_SYSFS) && !defined(CONFIG_GRKERNSEC_PROC_ADD)
+ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
+ {
+ 	struct saved_alias *al;
+@@ -5263,6 +5361,7 @@ static int sysfs_slab_alias(struct kmem_cache *s, const char *name)
+ 	alias_list = al;
+ 	return 0;
+ }
++#endif
+ 
+ static int __init slab_sysfs_init(void)
+ {
+diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
+index 4cba9c2..b4f9fcc 100644
+--- a/mm/sparse-vmemmap.c
++++ b/mm/sparse-vmemmap.c
+@@ -131,7 +131,7 @@ pud_t * __meminit vmemmap_pud_populate(pgd_t *pgd, unsigned long addr, int node)
+ 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
+ 		if (!p)
+ 			return NULL;
+-		pud_populate(&init_mm, pud, p);
++		pud_populate_kernel(&init_mm, pud, p);
+ 	}
+ 	return pud;
+ }
+@@ -143,7 +143,7 @@ pgd_t * __meminit vmemmap_pgd_populate(unsigned long addr, int node)
+ 		void *p = vmemmap_alloc_block(PAGE_SIZE, node);
+ 		if (!p)
+ 			return NULL;
+-		pgd_populate(&init_mm, pgd, p);
++		pgd_populate_kernel(&init_mm, pgd, p);
+ 	}
+ 	return pgd;
+ }
+diff --git a/mm/sparse.c b/mm/sparse.c
+index 63c3ea5..95c0858 100644
+--- a/mm/sparse.c
++++ b/mm/sparse.c
+@@ -748,7 +748,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
+ 
+ 	for (i = 0; i < PAGES_PER_SECTION; i++) {
+ 		if (PageHWPoison(&memmap[i])) {
+-			atomic_long_sub(1, &num_poisoned_pages);
++			atomic_long_sub_unchecked(1, &num_poisoned_pages);
+ 			ClearPageHWPoison(&memmap[i]);
+ 		}
+ 	}
+diff --git a/mm/swap.c b/mm/swap.c
+index d2ceddf..d585efa 100644
+--- a/mm/swap.c
++++ b/mm/swap.c
+@@ -31,6 +31,7 @@
+ #include <linux/memcontrol.h>
+ #include <linux/gfp.h>
+ #include <linux/uio.h>
++#include <linux/hugetlb.h>
+ 
+ #include "internal.h"
+ 
+@@ -76,6 +77,8 @@ static void __put_compound_page(struct page *page)
+ 
+ 	__page_cache_release(page);
+ 	dtor = get_compound_page_dtor(page);
++	if (!PageHuge(page))
++		BUG_ON(dtor != free_compound_page);
+ 	(*dtor)(page);
+ }
+ 
+diff --git a/mm/swapfile.c b/mm/swapfile.c
+index beeeef8..1cb288b 100644
+--- a/mm/swapfile.c
++++ b/mm/swapfile.c
+@@ -84,7 +84,7 @@ static DEFINE_MUTEX(swapon_mutex);
+ 
+ static DECLARE_WAIT_QUEUE_HEAD(proc_poll_wait);
+ /* Activity counter to indicate that a swapon or swapoff has occurred */
+-static atomic_t proc_poll_event = ATOMIC_INIT(0);
++static atomic_unchecked_t proc_poll_event = ATOMIC_INIT(0);
+ 
+ static inline unsigned char swap_count(unsigned char ent)
+ {
+@@ -1968,7 +1968,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
+ 	spin_unlock(&swap_lock);
+ 
+ 	err = 0;
+-	atomic_inc(&proc_poll_event);
++	atomic_inc_unchecked(&proc_poll_event);
+ 	wake_up_interruptible(&proc_poll_wait);
+ 
+ out_dput:
+@@ -1985,8 +1985,8 @@ static unsigned swaps_poll(struct file *file, poll_table *wait)
+ 
+ 	poll_wait(file, &proc_poll_wait, wait);
+ 
+-	if (seq->poll_event != atomic_read(&proc_poll_event)) {
+-		seq->poll_event = atomic_read(&proc_poll_event);
++	if (seq->poll_event != atomic_read_unchecked(&proc_poll_event)) {
++		seq->poll_event = atomic_read_unchecked(&proc_poll_event);
+ 		return POLLIN | POLLRDNORM | POLLERR | POLLPRI;
+ 	}
+ 
+@@ -2084,7 +2084,7 @@ static int swaps_open(struct inode *inode, struct file *file)
+ 		return ret;
+ 
+ 	seq = file->private_data;
+-	seq->poll_event = atomic_read(&proc_poll_event);
++	seq->poll_event = atomic_read_unchecked(&proc_poll_event);
+ 	return 0;
+ }
+ 
+@@ -2544,7 +2544,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
+ 		(frontswap_map) ? "FS" : "");
+ 
+ 	mutex_unlock(&swapon_mutex);
+-	atomic_inc(&proc_poll_event);
++	atomic_inc_unchecked(&proc_poll_event);
+ 	wake_up_interruptible(&proc_poll_wait);
+ 
+ 	if (S_ISREG(inode->i_mode))
+diff --git a/mm/util.c b/mm/util.c
+index c1010cb..210c536 100644
+--- a/mm/util.c
++++ b/mm/util.c
+@@ -9,6 +9,7 @@
+ #include <linux/swapops.h>
+ #include <linux/mman.h>
+ #include <linux/hugetlb.h>
++#include <linux/vmalloc.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -294,6 +295,12 @@ done:
+ void arch_pick_mmap_layout(struct mm_struct *mm)
+ {
+ 	mm->mmap_base = TASK_UNMAPPED_BASE;
++
++#ifdef CONFIG_PAX_RANDMMAP
++	if (mm->pax_flags & MF_PAX_RANDMMAP)
++		mm->mmap_base += mm->delta_mmap;
++#endif
++
+ 	mm->get_unmapped_area = arch_get_unmapped_area;
+ }
+ #endif
+@@ -383,6 +390,15 @@ unsigned long vm_mmap(struct file *file, unsigned long addr,
+ }
+ EXPORT_SYMBOL(vm_mmap);
+ 
++void kvfree(const void *addr)
++{
++	if (is_vmalloc_addr(addr))
++		vfree(addr);
++	else
++		kfree(addr);
++}
++EXPORT_SYMBOL(kvfree);
++
+ struct address_space *page_mapping(struct page *page)
+ {
+ 	struct address_space *mapping = page->mapping;
+diff --git a/mm/vmalloc.c b/mm/vmalloc.c
+index aa3891e..97555dd 100644
+--- a/mm/vmalloc.c
++++ b/mm/vmalloc.c
+@@ -38,6 +38,21 @@ struct vfree_deferred {
+ };
+ static DEFINE_PER_CPU(struct vfree_deferred, vfree_deferred);
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++struct stack_deferred_llist {
++	struct llist_head list;
++	void *stack;
++	void *lowmem_stack;
++};
++
++struct stack_deferred {
++	struct stack_deferred_llist list;
++	struct work_struct wq;
++};
++
++static DEFINE_PER_CPU(struct stack_deferred, stack_deferred);
++#endif
++
+ static void __vunmap(const void *, int);
+ 
+ static void free_work(struct work_struct *w)
+@@ -45,12 +60,30 @@ static void free_work(struct work_struct *w)
+ 	struct vfree_deferred *p = container_of(w, struct vfree_deferred, wq);
+ 	struct llist_node *llnode = llist_del_all(&p->list);
+ 	while (llnode) {
+-		void *p = llnode;
++		void *x = llnode;
+ 		llnode = llist_next(llnode);
+-		__vunmap(p, 1);
++		__vunmap(x, 1);
+ 	}
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++static void unmap_work(struct work_struct *w)
++{
++	struct stack_deferred *p = container_of(w, struct stack_deferred, wq);
++	struct llist_node *llnode = llist_del_all(&p->list.list);
++	while (llnode) {
++		struct stack_deferred_llist *x =
++			llist_entry((struct llist_head *)llnode,
++				     struct stack_deferred_llist, list);
++		void *stack = ACCESS_ONCE(x->stack);
++		void *lowmem_stack = ACCESS_ONCE(x->lowmem_stack);
++		llnode = llist_next(llnode);
++		__vunmap(stack, 0);
++		free_memcg_kmem_pages((unsigned long)lowmem_stack, THREAD_SIZE_ORDER);
++	}
++}
++#endif
++
+ /*** Page table manipulation functions ***/
+ 
+ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
+@@ -59,8 +92,19 @@ static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end)
+ 
+ 	pte = pte_offset_kernel(pmd, addr);
+ 	do {
+-		pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
+-		WARN_ON(!pte_none(ptent) && !pte_present(ptent));
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		if ((unsigned long)MODULES_EXEC_VADDR <= addr && addr < (unsigned long)MODULES_EXEC_END) {
++			BUG_ON(!pte_exec(*pte));
++			set_pte_at(&init_mm, addr, pte, pfn_pte(__pa(addr) >> PAGE_SHIFT, PAGE_KERNEL_EXEC));
++			continue;
++		}
++#endif
++
++		{
++			pte_t ptent = ptep_get_and_clear(&init_mm, addr, pte);
++			WARN_ON(!pte_none(ptent) && !pte_present(ptent));
++		}
+ 	} while (pte++, addr += PAGE_SIZE, addr != end);
+ }
+ 
+@@ -120,16 +164,29 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
+ 	pte = pte_alloc_kernel(pmd, addr);
+ 	if (!pte)
+ 		return -ENOMEM;
++
++	pax_open_kernel();
+ 	do {
+ 		struct page *page = pages[*nr];
+ 
+-		if (WARN_ON(!pte_none(*pte)))
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++		if (pgprot_val(prot) & _PAGE_NX)
++#endif
++
++		if (!pte_none(*pte)) {
++			pax_close_kernel();
++			WARN_ON(1);
+ 			return -EBUSY;
+-		if (WARN_ON(!page))
++		}
++		if (!page) {
++			pax_close_kernel();
++			WARN_ON(1);
+ 			return -ENOMEM;
++		}
+ 		set_pte_at(&init_mm, addr, pte, mk_pte(page, prot));
+ 		(*nr)++;
+ 	} while (pte++, addr += PAGE_SIZE, addr != end);
++	pax_close_kernel();
+ 	return 0;
+ }
+ 
+@@ -139,7 +196,7 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
+ 	pmd_t *pmd;
+ 	unsigned long next;
+ 
+-	pmd = pmd_alloc(&init_mm, pud, addr);
++	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
+ 	if (!pmd)
+ 		return -ENOMEM;
+ 	do {
+@@ -156,7 +213,7 @@ static int vmap_pud_range(pgd_t *pgd, unsigned long addr,
+ 	pud_t *pud;
+ 	unsigned long next;
+ 
+-	pud = pud_alloc(&init_mm, pgd, addr);
++	pud = pud_alloc_kernel(&init_mm, pgd, addr);
+ 	if (!pud)
+ 		return -ENOMEM;
+ 	do {
+@@ -216,6 +273,12 @@ int is_vmalloc_or_module_addr(const void *x)
+ 	if (addr >= MODULES_VADDR && addr < MODULES_END)
+ 		return 1;
+ #endif
++
++#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC)
++	if (x >= (const void *)MODULES_EXEC_VADDR && x < (const void *)MODULES_EXEC_END)
++		return 1;
++#endif
++
+ 	return is_vmalloc_addr(x);
+ }
+ 
+@@ -236,8 +299,14 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
+ 
+ 	if (!pgd_none(*pgd)) {
+ 		pud_t *pud = pud_offset(pgd, addr);
++#ifdef CONFIG_X86
++		if (!pud_large(*pud))
++#endif
+ 		if (!pud_none(*pud)) {
+ 			pmd_t *pmd = pmd_offset(pud, addr);
++#ifdef CONFIG_X86
++			if (!pmd_large(*pmd))
++#endif
+ 			if (!pmd_none(*pmd)) {
+ 				pte_t *ptep, pte;
+ 
+@@ -1175,13 +1244,23 @@ void __init vmalloc_init(void)
+ 	for_each_possible_cpu(i) {
+ 		struct vmap_block_queue *vbq;
+ 		struct vfree_deferred *p;
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++		struct stack_deferred *p2;
++#endif
+ 
+ 		vbq = &per_cpu(vmap_block_queue, i);
+ 		spin_lock_init(&vbq->lock);
+ 		INIT_LIST_HEAD(&vbq->free);
++
+ 		p = &per_cpu(vfree_deferred, i);
+ 		init_llist_head(&p->list);
+ 		INIT_WORK(&p->wq, free_work);
++
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++		p2 = &per_cpu(stack_deferred, i);
++		init_llist_head(&p2->list.list);
++		INIT_WORK(&p2->wq, unmap_work);
++#endif
+ 	}
+ 
+ 	/* Import existing vmlist entries. */
+@@ -1309,6 +1388,16 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
+ 	struct vm_struct *area;
+ 
+ 	BUG_ON(in_interrupt());
++
++#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
++	if (flags & VM_KERNEXEC) {
++		if (start != VMALLOC_START || end != VMALLOC_END)
++			return NULL;
++		start = (unsigned long)MODULES_EXEC_VADDR;
++		end = (unsigned long)MODULES_EXEC_END;
++	}
++#endif
++
+ 	if (flags & VM_IOREMAP)
+ 		align = 1ul << clamp(fls(size), PAGE_SHIFT, IOREMAP_MAX_ORDER);
+ 
+@@ -1514,6 +1603,23 @@ void vunmap(const void *addr)
+ }
+ EXPORT_SYMBOL(vunmap);
+ 
++#ifdef CONFIG_GRKERNSEC_KSTACKOVERFLOW
++void unmap_process_stacks(struct task_struct *task)
++{
++	if (unlikely(in_interrupt())) {
++		struct stack_deferred *p = &__get_cpu_var(stack_deferred);
++		struct stack_deferred_llist *list = task->stack;
++		list->stack = task->stack;
++		list->lowmem_stack = task->lowmem_stack;
++		if (llist_add((struct llist_node *)&list->list, &p->list.list))
++			schedule_work(&p->wq);
++	} else {
++		__vunmap(task->stack, 0);
++		free_memcg_kmem_pages((unsigned long)task->lowmem_stack, THREAD_SIZE_ORDER);
++	}
++}
++#endif
++
+ /**
+  *	vmap  -  map an array of pages into virtually contiguous space
+  *	@pages:		array of page pointers
+@@ -1534,6 +1640,11 @@ void *vmap(struct page **pages, unsigned int count,
+ 	if (count > totalram_pages)
+ 		return NULL;
+ 
++#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
++	if (!(pgprot_val(prot) & _PAGE_NX))
++		flags |= VM_KERNEXEC;
++#endif
++
+ 	area = get_vm_area_caller((count << PAGE_SHIFT), flags,
+ 					__builtin_return_address(0));
+ 	if (!area)
+@@ -1634,6 +1745,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
+ 	if (!size || (size >> PAGE_SHIFT) > totalram_pages)
+ 		goto fail;
+ 
++#if defined(CONFIG_X86) && defined(CONFIG_PAX_KERNEXEC)
++	if (!(pgprot_val(prot) & _PAGE_NX))
++		area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED | VM_KERNEXEC,
++					  VMALLOC_START, VMALLOC_END, node, gfp_mask, caller);
++	else
++#endif
++
+ 	area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNINITIALIZED,
+ 				  start, end, node, gfp_mask, caller);
+ 	if (!area)
+@@ -1810,10 +1928,9 @@ EXPORT_SYMBOL(vzalloc_node);
+  *	For tight control over page level allocator and protection flags
+  *	use __vmalloc() instead.
+  */
+-
+ void *vmalloc_exec(unsigned long size)
+ {
+-	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
++	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC,
+ 			      NUMA_NO_NODE, __builtin_return_address(0));
+ }
+ 
+@@ -2120,6 +2237,8 @@ int remap_vmalloc_range_partial(struct vm_area_struct *vma, unsigned long uaddr,
+ {
+ 	struct vm_struct *area;
+ 
++	BUG_ON(vma->vm_mirror);
++
+ 	size = PAGE_ALIGN(size);
+ 
+ 	if (!PAGE_ALIGNED(uaddr) || !PAGE_ALIGNED(kaddr))
+@@ -2602,7 +2721,11 @@ static int s_show(struct seq_file *m, void *p)
+ 		v->addr, v->addr + v->size, v->size);
+ 
+ 	if (v->caller)
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++		seq_printf(m, " %pK", v->caller);
++#else
+ 		seq_printf(m, " %pS", v->caller);
++#endif
+ 
+ 	if (v->nr_pages)
+ 		seq_printf(m, " pages=%d", v->nr_pages);
+diff --git a/mm/vmstat.c b/mm/vmstat.c
+index eded190..e4203d1 100644
+--- a/mm/vmstat.c
++++ b/mm/vmstat.c
+@@ -20,6 +20,7 @@
+ #include <linux/writeback.h>
+ #include <linux/compaction.h>
+ #include <linux/mm_inline.h>
++#include <linux/grsecurity.h>
+ 
+ #include "internal.h"
+ 
+@@ -79,7 +80,7 @@ void vm_events_fold_cpu(int cpu)
+  *
+  * vm_stat contains the global counters
+  */
+-atomic_long_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
++atomic_long_unchecked_t vm_stat[NR_VM_ZONE_STAT_ITEMS] __cacheline_aligned_in_smp;
+ EXPORT_SYMBOL(vm_stat);
+ 
+ #ifdef CONFIG_SMP
+@@ -423,7 +424,7 @@ static inline void fold_diff(int *diff)
+ 
+ 	for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
+ 		if (diff[i])
+-			atomic_long_add(diff[i], &vm_stat[i]);
++			atomic_long_add_unchecked(diff[i], &vm_stat[i]);
+ }
+ 
+ /*
+@@ -455,7 +456,7 @@ static void refresh_cpu_vm_stats(void)
+ 			v = this_cpu_xchg(p->vm_stat_diff[i], 0);
+ 			if (v) {
+ 
+-				atomic_long_add(v, &zone->vm_stat[i]);
++				atomic_long_add_unchecked(v, &zone->vm_stat[i]);
+ 				global_diff[i] += v;
+ #ifdef CONFIG_NUMA
+ 				/* 3 seconds idle till flush */
+@@ -517,7 +518,7 @@ void cpu_vm_stats_fold(int cpu)
+ 
+ 				v = p->vm_stat_diff[i];
+ 				p->vm_stat_diff[i] = 0;
+-				atomic_long_add(v, &zone->vm_stat[i]);
++				atomic_long_add_unchecked(v, &zone->vm_stat[i]);
+ 				global_diff[i] += v;
+ 			}
+ 	}
+@@ -537,8 +538,8 @@ void drain_zonestat(struct zone *zone, struct per_cpu_pageset *pset)
+ 		if (pset->vm_stat_diff[i]) {
+ 			int v = pset->vm_stat_diff[i];
+ 			pset->vm_stat_diff[i] = 0;
+-			atomic_long_add(v, &zone->vm_stat[i]);
+-			atomic_long_add(v, &vm_stat[i]);
++			atomic_long_add_unchecked(v, &zone->vm_stat[i]);
++			atomic_long_add_unchecked(v, &vm_stat[i]);
+ 		}
+ }
+ #endif
+@@ -1151,10 +1152,22 @@ static void *vmstat_start(struct seq_file *m, loff_t *pos)
+ 	stat_items_size += sizeof(struct vm_event_state);
+ #endif
+ 
+-	v = kmalloc(stat_items_size, GFP_KERNEL);
++	v = kzalloc(stat_items_size, GFP_KERNEL);
+ 	m->private = v;
+ 	if (!v)
+ 		return ERR_PTR(-ENOMEM);
++
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP)
++        if (!uid_eq(current_uid(), GLOBAL_ROOT_UID)
++#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP
++                && !in_group_p(grsec_proc_gid)
++#endif
++        )
++		return (unsigned long *)m->private + *pos;
++#endif
++#endif
++
+ 	for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++)
+ 		v[i] = global_page_state(i);
+ 	v += NR_VM_ZONE_STAT_ITEMS;
+@@ -1303,10 +1316,16 @@ static int __init setup_vmstat(void)
+ 	put_online_cpus();
+ #endif
+ #ifdef CONFIG_PROC_FS
+-	proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
+-	proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
+-	proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
+-	proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
++	{
++		mode_t gr_mode = S_IRUGO;
++#ifdef CONFIG_GRKERNSEC_PROC_ADD
++		gr_mode = S_IRUSR;
++#endif
++		proc_create("buddyinfo", gr_mode, NULL, &fragmentation_file_operations);
++		proc_create("pagetypeinfo", gr_mode, NULL, &pagetypeinfo_file_ops);
++		proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
++		proc_create("zoneinfo", gr_mode, NULL, &proc_zoneinfo_file_operations);
++	}
+ #endif
+ 	return 0;
+ }
+diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
+index 44ebd5c..1f732bae 100644
+--- a/net/8021q/vlan.c
++++ b/net/8021q/vlan.c
+@@ -475,7 +475,7 @@ out:
+ 	return NOTIFY_DONE;
+ }
+ 
+-static struct notifier_block vlan_notifier_block __read_mostly = {
++static struct notifier_block vlan_notifier_block = {
+ 	.notifier_call = vlan_device_event,
+ };
+ 
+@@ -550,8 +550,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
+ 		err = -EPERM;
+ 		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+ 			break;
+-		if ((args.u.name_type >= 0) &&
+-		    (args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
++		if (args.u.name_type < VLAN_NAME_TYPE_HIGHEST) {
+ 			struct vlan_net *vn;
+ 
+ 			vn = net_generic(net, vlan_net_id);
+diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
+index c7e634a..041cbdb 100644
+--- a/net/8021q/vlan_netlink.c
++++ b/net/8021q/vlan_netlink.c
+@@ -238,7 +238,7 @@ nla_put_failure:
+ 	return -EMSGSIZE;
+ }
+ 
+-struct rtnl_link_ops vlan_link_ops __read_mostly = {
++struct rtnl_link_ops vlan_link_ops = {
+ 	.kind		= "vlan",
+ 	.maxtype	= IFLA_VLAN_MAX,
+ 	.policy		= vlan_policy,
+diff --git a/net/9p/client.c b/net/9p/client.c
+index 9186550..e604a2f 100644
+--- a/net/9p/client.c
++++ b/net/9p/client.c
+@@ -588,7 +588,7 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
+ 				       len - inline_len);
+ 			} else {
+ 				err = copy_from_user(ename + inline_len,
+-						     uidata, len - inline_len);
++						     (char __force_user *)uidata, len - inline_len);
+ 				if (err) {
+ 					err = -EFAULT;
+ 					goto out_err;
+@@ -1560,7 +1560,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
+ 			kernel_buf = 1;
+ 			indata = data;
+ 		} else
+-			indata = (__force char *)udata;
++			indata = (__force_kernel char *)udata;
+ 		/*
+ 		 * response header len is 11
+ 		 * PDU Header(7) + IO Size (4)
+@@ -1635,7 +1635,7 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
+ 			kernel_buf = 1;
+ 			odata = data;
+ 		} else
+-			odata = (char *)udata;
++			odata = (char __force_kernel *)udata;
+ 		req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, odata, 0, rsize,
+ 				       P9_ZC_HDR_SZ, kernel_buf, "dqd",
+ 				       fid->fid, offset, rsize);
+diff --git a/net/9p/mod.c b/net/9p/mod.c
+index 6ab36ae..6f1841b 100644
+--- a/net/9p/mod.c
++++ b/net/9p/mod.c
+@@ -84,7 +84,7 @@ static LIST_HEAD(v9fs_trans_list);
+ void v9fs_register_trans(struct p9_trans_module *m)
+ {
+ 	spin_lock(&v9fs_trans_lock);
+-	list_add_tail(&m->list, &v9fs_trans_list);
++	pax_list_add_tail((struct list_head *)&m->list, &v9fs_trans_list);
+ 	spin_unlock(&v9fs_trans_lock);
+ }
+ EXPORT_SYMBOL(v9fs_register_trans);
+@@ -97,7 +97,7 @@ EXPORT_SYMBOL(v9fs_register_trans);
+ void v9fs_unregister_trans(struct p9_trans_module *m)
+ {
+ 	spin_lock(&v9fs_trans_lock);
+-	list_del_init(&m->list);
++	pax_list_del_init((struct list_head *)&m->list);
+ 	spin_unlock(&v9fs_trans_lock);
+ }
+ EXPORT_SYMBOL(v9fs_unregister_trans);
+diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
+index b7bd7f2..2498bf7 100644
+--- a/net/9p/trans_fd.c
++++ b/net/9p/trans_fd.c
+@@ -432,7 +432,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
+ 	oldfs = get_fs();
+ 	set_fs(get_ds());
+ 	/* The cast to a user pointer is valid due to the set_fs() */
+-	ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
++	ret = vfs_write(ts->wr, (void __force_user *)v, len, &ts->wr->f_pos);
+ 	set_fs(oldfs);
+ 
+ 	if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
+diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
+index af46bc4..f9adfcd 100644
+--- a/net/appletalk/atalk_proc.c
++++ b/net/appletalk/atalk_proc.c
+@@ -256,7 +256,7 @@ int __init atalk_proc_init(void)
+ 	struct proc_dir_entry *p;
+ 	int rc = -ENOMEM;
+ 
+-	atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
++	atalk_proc_dir = proc_mkdir_restrict("atalk", init_net.proc_net);
+ 	if (!atalk_proc_dir)
+ 		goto out;
+ 
+diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
+index 876fbe8..8bbea9f 100644
+--- a/net/atm/atm_misc.c
++++ b/net/atm/atm_misc.c
+@@ -17,7 +17,7 @@ int atm_charge(struct atm_vcc *vcc, int truesize)
+ 	if (atomic_read(&sk_atm(vcc)->sk_rmem_alloc) <= sk_atm(vcc)->sk_rcvbuf)
+ 		return 1;
+ 	atm_return(vcc, truesize);
+-	atomic_inc(&vcc->stats->rx_drop);
++	atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 	return 0;
+ }
+ EXPORT_SYMBOL(atm_charge);
+@@ -39,7 +39,7 @@ struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc, int pdu_size,
+ 		}
+ 	}
+ 	atm_return(vcc, guess);
+-	atomic_inc(&vcc->stats->rx_drop);
++	atomic_inc_unchecked(&vcc->stats->rx_drop);
+ 	return NULL;
+ }
+ EXPORT_SYMBOL(atm_alloc_charge);
+@@ -86,7 +86,7 @@ EXPORT_SYMBOL(atm_pcr_goal);
+ 
+ void sonet_copy_stats(struct k_sonet_stats *from, struct sonet_stats *to)
+ {
+-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
++#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
+ 	__SONET_ITEMS
+ #undef __HANDLE_ITEM
+ }
+@@ -94,7 +94,7 @@ EXPORT_SYMBOL(sonet_copy_stats);
+ 
+ void sonet_subtract_stats(struct k_sonet_stats *from, struct sonet_stats *to)
+ {
+-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
++#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i,&from->i)
+ 	__SONET_ITEMS
+ #undef __HANDLE_ITEM
+ }
+diff --git a/net/atm/lec.c b/net/atm/lec.c
+index 5a2f602..93961433 100644
+--- a/net/atm/lec.c
++++ b/net/atm/lec.c
+@@ -111,9 +111,9 @@ static inline void lec_arp_put(struct lec_arp_table *entry)
+ }
+ 
+ static struct lane2_ops lane2_ops = {
+-	lane2_resolve,		/* resolve,             spec 3.1.3 */
+-	lane2_associate_req,	/* associate_req,       spec 3.1.4 */
+-	NULL			/* associate indicator, spec 3.1.5 */
++	.resolve = lane2_resolve,
++	.associate_req = lane2_associate_req,
++	.associate_indicator = NULL
+ };
+ 
+ static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+diff --git a/net/atm/lec.h b/net/atm/lec.h
+index 4149db1..f2ab682 100644
+--- a/net/atm/lec.h
++++ b/net/atm/lec.h
+@@ -48,7 +48,7 @@ struct lane2_ops {
+ 			      const u8 *tlvs, u32 sizeoftlvs);
+ 	void (*associate_indicator) (struct net_device *dev, const u8 *mac_addr,
+ 				     const u8 *tlvs, u32 sizeoftlvs);
+-};
++} __no_const;
+ 
+ /*
+  * ATM LAN Emulation supports both LLC & Dix Ethernet EtherType
+diff --git a/net/atm/mpoa_caches.c b/net/atm/mpoa_caches.c
+index d1b2d9a..d549f7f 100644
+--- a/net/atm/mpoa_caches.c
++++ b/net/atm/mpoa_caches.c
+@@ -535,30 +535,30 @@ static void eg_destroy_cache(struct mpoa_client *mpc)
+ 
+ 
+ static struct in_cache_ops ingress_ops = {
+-	in_cache_add_entry,               /* add_entry       */
+-	in_cache_get,                     /* get             */
+-	in_cache_get_with_mask,           /* get_with_mask   */
+-	in_cache_get_by_vcc,              /* get_by_vcc      */
+-	in_cache_put,                     /* put             */
+-	in_cache_remove_entry,            /* remove_entry    */
+-	cache_hit,                        /* cache_hit       */
+-	clear_count_and_expired,          /* clear_count     */
+-	check_resolving_entries,          /* check_resolving */
+-	refresh_entries,                  /* refresh         */
+-	in_destroy_cache                  /* destroy_cache   */
++	.add_entry = in_cache_add_entry,
++	.get = in_cache_get,
++	.get_with_mask = in_cache_get_with_mask,
++	.get_by_vcc = in_cache_get_by_vcc,
++	.put = in_cache_put,
++	.remove_entry = in_cache_remove_entry,
++	.cache_hit = cache_hit,
++	.clear_count = clear_count_and_expired,
++	.check_resolving = check_resolving_entries,
++	.refresh = refresh_entries,
++	.destroy_cache = in_destroy_cache
+ };
+ 
+ static struct eg_cache_ops egress_ops = {
+-	eg_cache_add_entry,               /* add_entry        */
+-	eg_cache_get_by_cache_id,         /* get_by_cache_id  */
+-	eg_cache_get_by_tag,              /* get_by_tag       */
+-	eg_cache_get_by_vcc,              /* get_by_vcc       */
+-	eg_cache_get_by_src_ip,           /* get_by_src_ip    */
+-	eg_cache_put,                     /* put              */
+-	eg_cache_remove_entry,            /* remove_entry     */
+-	update_eg_cache_entry,            /* update           */
+-	clear_expired,                    /* clear_expired    */
+-	eg_destroy_cache                  /* destroy_cache    */
++	.add_entry = eg_cache_add_entry,
++	.get_by_cache_id = eg_cache_get_by_cache_id,
++	.get_by_tag = eg_cache_get_by_tag,
++	.get_by_vcc = eg_cache_get_by_vcc,
++	.get_by_src_ip = eg_cache_get_by_src_ip,
++	.put = eg_cache_put,
++	.remove_entry = eg_cache_remove_entry,
++	.update = update_eg_cache_entry,
++	.clear_expired = clear_expired,
++	.destroy_cache = eg_destroy_cache
+ };
+ 
+ 
+diff --git a/net/atm/proc.c b/net/atm/proc.c
+index bbb6461..cf04016 100644
+--- a/net/atm/proc.c
++++ b/net/atm/proc.c
+@@ -45,9 +45,9 @@ static void add_stats(struct seq_file *seq, const char *aal,
+   const struct k_atm_aal_stats *stats)
+ {
+ 	seq_printf(seq, "%s ( %d %d %d %d %d )", aal,
+-		   atomic_read(&stats->tx), atomic_read(&stats->tx_err),
+-		   atomic_read(&stats->rx), atomic_read(&stats->rx_err),
+-		   atomic_read(&stats->rx_drop));
++		   atomic_read_unchecked(&stats->tx),atomic_read_unchecked(&stats->tx_err),
++		   atomic_read_unchecked(&stats->rx),atomic_read_unchecked(&stats->rx_err),
++		   atomic_read_unchecked(&stats->rx_drop));
+ }
+ 
+ static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
+diff --git a/net/atm/resources.c b/net/atm/resources.c
+index 0447d5d..3cf4728 100644
+--- a/net/atm/resources.c
++++ b/net/atm/resources.c
+@@ -160,7 +160,7 @@ EXPORT_SYMBOL(atm_dev_deregister);
+ static void copy_aal_stats(struct k_atm_aal_stats *from,
+     struct atm_aal_stats *to)
+ {
+-#define __HANDLE_ITEM(i) to->i = atomic_read(&from->i)
++#define __HANDLE_ITEM(i) to->i = atomic_read_unchecked(&from->i)
+ 	__AAL_STAT_ITEMS
+ #undef __HANDLE_ITEM
+ }
+@@ -168,7 +168,7 @@ static void copy_aal_stats(struct k_atm_aal_stats *from,
+ static void subtract_aal_stats(struct k_atm_aal_stats *from,
+     struct atm_aal_stats *to)
+ {
+-#define __HANDLE_ITEM(i) atomic_sub(to->i, &from->i)
++#define __HANDLE_ITEM(i) atomic_sub_unchecked(to->i, &from->i)
+ 	__AAL_STAT_ITEMS
+ #undef __HANDLE_ITEM
+ }
+diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
+index 919a5ce..cc6b444 100644
+--- a/net/ax25/sysctl_net_ax25.c
++++ b/net/ax25/sysctl_net_ax25.c
+@@ -152,7 +152,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
+ {
+ 	char path[sizeof("net/ax25/") + IFNAMSIZ];
+ 	int k;
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
+ 	if (!table)
+diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
+index d074d06..ad3cfcf 100644
+--- a/net/batman-adv/bat_iv_ogm.c
++++ b/net/batman-adv/bat_iv_ogm.c
+@@ -312,7 +312,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
+ 
+ 	/* randomize initial seqno to avoid collision */
+ 	get_random_bytes(&random_seqno, sizeof(random_seqno));
+-	atomic_set(&hard_iface->bat_iv.ogm_seqno, random_seqno);
++	atomic_set_unchecked(&hard_iface->bat_iv.ogm_seqno, random_seqno);
+ 
+ 	hard_iface->bat_iv.ogm_buff_len = BATADV_OGM_HLEN;
+ 	ogm_buff = kmalloc(hard_iface->bat_iv.ogm_buff_len, GFP_ATOMIC);
+@@ -917,9 +917,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
+ 	batadv_ogm_packet->tvlv_len = htons(tvlv_len);
+ 
+ 	/* change sequence number to network order */
+-	seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
++	seqno = (uint32_t)atomic_read_unchecked(&hard_iface->bat_iv.ogm_seqno);
+ 	batadv_ogm_packet->seqno = htonl(seqno);
+-	atomic_inc(&hard_iface->bat_iv.ogm_seqno);
++	atomic_inc_unchecked(&hard_iface->bat_iv.ogm_seqno);
+ 
+ 	batadv_iv_ogm_slide_own_bcast_window(hard_iface);
+ 
+@@ -1596,7 +1596,7 @@ static void batadv_iv_ogm_process(const struct sk_buff *skb, int ogm_offset,
+ 		return;
+ 
+ 	/* could be changed by schedule_own_packet() */
+-	if_incoming_seqno = atomic_read(&if_incoming->bat_iv.ogm_seqno);
++	if_incoming_seqno = atomic_read_unchecked(&if_incoming->bat_iv.ogm_seqno);
+ 
+ 	if (ogm_packet->flags & BATADV_DIRECTLINK)
+ 		has_directlink_flag = true;
+diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
+index e5c5f57..1f25f1c 100644
+--- a/net/batman-adv/fragmentation.c
++++ b/net/batman-adv/fragmentation.c
+@@ -450,7 +450,7 @@ bool batadv_frag_send_packet(struct sk_buff *skb,
+ 	frag_header.packet_type = BATADV_UNICAST_FRAG;
+ 	frag_header.version = BATADV_COMPAT_VERSION;
+ 	frag_header.ttl = BATADV_TTL;
+-	frag_header.seqno = htons(atomic_inc_return(&bat_priv->frag_seqno));
++	frag_header.seqno = htons(atomic_inc_return_unchecked(&bat_priv->frag_seqno));
+ 	frag_header.reserved = 0;
+ 	frag_header.no = 0;
+ 	frag_header.total_size = htons(skb->len);
+diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
+index f82c267..8a27a34 100644
+--- a/net/batman-adv/soft-interface.c
++++ b/net/batman-adv/soft-interface.c
+@@ -283,7 +283,7 @@ send:
+ 		       primary_if->net_dev->dev_addr, ETH_ALEN);
+ 
+ 		/* set broadcast sequence number */
+-		seqno = atomic_inc_return(&bat_priv->bcast_seqno);
++		seqno = atomic_inc_return_unchecked(&bat_priv->bcast_seqno);
+ 		bcast_packet->seqno = htonl(seqno);
+ 
+ 		batadv_add_bcast_packet_to_list(bat_priv, skb, brd_delay);
+@@ -707,7 +707,7 @@ static int batadv_softif_init_late(struct net_device *dev)
+ 	atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
+ 
+ 	atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
+-	atomic_set(&bat_priv->bcast_seqno, 1);
++	atomic_set_unchecked(&bat_priv->bcast_seqno, 1);
+ 	atomic_set(&bat_priv->tt.vn, 0);
+ 	atomic_set(&bat_priv->tt.local_changes, 0);
+ 	atomic_set(&bat_priv->tt.ogm_append_cnt, 0);
+@@ -721,7 +721,7 @@ static int batadv_softif_init_late(struct net_device *dev)
+ 
+ 	/* randomize initial seqno to avoid collision */
+ 	get_random_bytes(&random_seqno, sizeof(random_seqno));
+-	atomic_set(&bat_priv->frag_seqno, random_seqno);
++	atomic_set_unchecked(&bat_priv->frag_seqno, random_seqno);
+ 
+ 	bat_priv->primary_if = NULL;
+ 	bat_priv->num_ifaces = 0;
+@@ -929,7 +929,7 @@ int batadv_softif_is_valid(const struct net_device *net_dev)
+ 	return 0;
+ }
+ 
+-struct rtnl_link_ops batadv_link_ops __read_mostly = {
++struct rtnl_link_ops batadv_link_ops = {
+ 	.kind		= "batadv",
+ 	.priv_size	= sizeof(struct batadv_priv),
+ 	.setup		= batadv_softif_init_early,
+diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
+index 78370ab..1cb3614 100644
+--- a/net/batman-adv/types.h
++++ b/net/batman-adv/types.h
+@@ -66,7 +66,7 @@ enum batadv_dhcp_recipient {
+ struct batadv_hard_iface_bat_iv {
+ 	unsigned char *ogm_buff;
+ 	int ogm_buff_len;
+-	atomic_t ogm_seqno;
++	atomic_unchecked_t ogm_seqno;
+ };
+ 
+ /**
+@@ -714,7 +714,7 @@ struct batadv_priv {
+ 	atomic_t bonding;
+ 	atomic_t fragmentation;
+ 	atomic_t packet_size_max;
+-	atomic_t frag_seqno;
++	atomic_unchecked_t frag_seqno;
+ #ifdef CONFIG_BATMAN_ADV_BLA
+ 	atomic_t bridge_loop_avoidance;
+ #endif
+@@ -730,7 +730,7 @@ struct batadv_priv {
+ #endif
+ 	uint32_t isolation_mark;
+ 	uint32_t isolation_mark_mask;
+-	atomic_t bcast_seqno;
++	atomic_unchecked_t bcast_seqno;
+ 	atomic_t bcast_queue_left;
+ 	atomic_t batman_queue_left;
+ 	char num_ifaces;
+diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
+index a841d3e..c7a19a1 100644
+--- a/net/bluetooth/bnep/core.c
++++ b/net/bluetooth/bnep/core.c
+@@ -533,6 +533,9 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
+ 
+ 	BT_DBG("");
+ 
++	if (!l2cap_is_socket(sock))
++		return -EBADFD;
++
+ 	baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
+ 	baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);
+ 
+diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
+index 67fe5e8..278a194 100644
+--- a/net/bluetooth/cmtp/core.c
++++ b/net/bluetooth/cmtp/core.c
+@@ -334,6 +334,9 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
+ 
+ 	BT_DBG("");
+ 
++	if (!l2cap_is_socket(sock))
++		return -EBADFD;
++
+ 	session = kzalloc(sizeof(struct cmtp_session), GFP_KERNEL);
+ 	if (!session)
+ 		return -ENOMEM;
+diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
+index 7552f9e..074ce29 100644
+--- a/net/bluetooth/hci_sock.c
++++ b/net/bluetooth/hci_sock.c
+@@ -1052,7 +1052,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
+ 			uf.event_mask[1] = *((u32 *) f->event_mask + 1);
+ 		}
+ 
+-		len = min_t(unsigned int, len, sizeof(uf));
++		len = min((size_t)len, sizeof(uf));
+ 		if (copy_from_user(&uf, optval, len)) {
+ 			err = -EFAULT;
+ 			break;
+diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
+index d9fb934..6134618 100644
+--- a/net/bluetooth/hidp/core.c
++++ b/net/bluetooth/hidp/core.c
+@@ -1332,13 +1332,14 @@ int hidp_connection_add(struct hidp_connadd_req *req,
+ {
+ 	struct hidp_session *session;
+ 	struct l2cap_conn *conn;
+-	struct l2cap_chan *chan = l2cap_pi(ctrl_sock->sk)->chan;
++	struct l2cap_chan *chan;
+ 	int ret;
+ 
+ 	ret = hidp_verify_sockets(ctrl_sock, intr_sock);
+ 	if (ret)
+ 		return ret;
+ 
++	chan = l2cap_pi(ctrl_sock->sk)->chan;
+ 	conn = NULL;
+ 	l2cap_chan_lock(chan);
+ 	if (chan->conn) {
+diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
+index 0007c9e..f11541b 100644
+--- a/net/bluetooth/l2cap_core.c
++++ b/net/bluetooth/l2cap_core.c
+@@ -3736,8 +3736,10 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
+ 			break;
+ 
+ 		case L2CAP_CONF_RFC:
+-			if (olen == sizeof(rfc))
+-				memcpy(&rfc, (void *)val, olen);
++			if (olen != sizeof(rfc))
++				break;
++
++			memcpy(&rfc, (void *)val, olen);
+ 
+ 			if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
+ 			    rfc.mode != chan->mode)
+diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
+index 06a7a76..86dd829 100644
+--- a/net/bluetooth/l2cap_sock.c
++++ b/net/bluetooth/l2cap_sock.c
+@@ -625,7 +625,8 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
+ 	struct sock *sk = sock->sk;
+ 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+ 	struct l2cap_options opts;
+-	int len, err = 0;
++	int err = 0;
++	size_t len = optlen;
+ 	u32 opt;
+ 
+ 	BT_DBG("sk %p", sk);
+@@ -652,7 +653,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname,
+ 		opts.max_tx   = chan->max_tx;
+ 		opts.txwin_size = chan->tx_win;
+ 
+-		len = min_t(unsigned int, sizeof(opts), optlen);
++		len = min(sizeof(opts), len);
+ 		if (copy_from_user((char *) &opts, optval, len)) {
+ 			err = -EFAULT;
+ 			break;
+@@ -734,7 +735,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
+ 	struct bt_security sec;
+ 	struct bt_power pwr;
+ 	struct l2cap_conn *conn;
+-	int len, err = 0;
++	int err = 0;
++	size_t len = optlen;
+ 	u32 opt;
+ 
+ 	BT_DBG("sk %p", sk);
+@@ -757,7 +759,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
+ 
+ 		sec.level = BT_SECURITY_LOW;
+ 
+-		len = min_t(unsigned int, sizeof(sec), optlen);
++		len = min(sizeof(sec), len);
+ 		if (copy_from_user((char *) &sec, optval, len)) {
+ 			err = -EFAULT;
+ 			break;
+@@ -852,7 +854,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
+ 
+ 		pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
+ 
+-		len = min_t(unsigned int, sizeof(pwr), optlen);
++		len = min(sizeof(pwr), len);
+ 		if (copy_from_user((char *) &pwr, optval, len)) {
+ 			err = -EFAULT;
+ 			break;
+diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
+index a0050de..59c6178 100644
+--- a/net/bluetooth/rfcomm/sock.c
++++ b/net/bluetooth/rfcomm/sock.c
+@@ -672,7 +672,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
+ 	struct sock *sk = sock->sk;
+ 	struct bt_security sec;
+ 	int err = 0;
+-	size_t len;
++	size_t len = optlen;
+ 	u32 opt;
+ 
+ 	BT_DBG("sk %p", sk);
+@@ -694,7 +694,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
+ 
+ 		sec.level = BT_SECURITY_LOW;
+ 
+-		len = min_t(unsigned int, sizeof(sec), optlen);
++		len = min(sizeof(sec), len);
+ 		if (copy_from_user((char *) &sec, optval, len)) {
+ 			err = -EFAULT;
+ 			break;
+diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
+index f9c0980a..fcbbfeb 100644
+--- a/net/bluetooth/rfcomm/tty.c
++++ b/net/bluetooth/rfcomm/tty.c
+@@ -717,7 +717,7 @@ static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
+ 	BT_DBG("tty %p id %d", tty, tty->index);
+ 
+ 	BT_DBG("dev %p dst %pMR channel %d opened %d", dev, &dev->dst,
+-	       dev->channel, dev->port.count);
++	       dev->channel, atomic_read(&dev->port.count));
+ 
+ 	err = tty_port_open(&dev->port, tty, filp);
+ 	if (err)
+@@ -740,7 +740,7 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
+ 	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+ 
+ 	BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
+-						dev->port.count);
++						atomic_read(&dev->port.count));
+ 
+ 	tty_port_close(&dev->port, tty, filp);
+ }
+diff --git a/net/bridge/br.c b/net/bridge/br.c
+index 19311aa..339d794 100644
+--- a/net/bridge/br.c
++++ b/net/bridge/br.c
+@@ -49,6 +49,8 @@ static int __init br_init(void)
+ {
+ 	int err;
+ 
++	BUILD_BUG_ON(sizeof(struct br_input_skb_cb) > FIELD_SIZEOF(struct sk_buff, cb));
++
+ 	err = stp_proto_register(&br_stp_proto);
+ 	if (err < 0) {
+ 		pr_err("bridge: can't register sap for STP\n");
+diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
+index e8844d9..df3afa0 100644
+--- a/net/bridge/br_netlink.c
++++ b/net/bridge/br_netlink.c
+@@ -482,7 +482,7 @@ static struct rtnl_af_ops br_af_ops = {
+ 	.get_link_af_size	= br_get_link_af_size,
+ };
+ 
+-struct rtnl_link_ops br_link_ops __read_mostly = {
++struct rtnl_link_ops br_link_ops = {
+ 	.kind		= "bridge",
+ 	.priv_size	= sizeof(struct net_bridge),
+ 	.setup		= br_dev_setup,
+diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
+index 1059ed3..d70846a 100644
+--- a/net/bridge/netfilter/ebtables.c
++++ b/net/bridge/netfilter/ebtables.c
+@@ -1524,7 +1524,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
+ 			tmp.valid_hooks = t->table->valid_hooks;
+ 		}
+ 		mutex_unlock(&ebt_mutex);
+-		if (copy_to_user(user, &tmp, *len) != 0) {
++		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
+ 			BUGPRINT("c2u Didn't work\n");
+ 			ret = -EFAULT;
+ 			break;
+@@ -2330,7 +2330,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
+ 			goto out;
+ 		tmp.valid_hooks = t->valid_hooks;
+ 
+-		if (copy_to_user(user, &tmp, *len) != 0) {
++		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
+ 			ret = -EFAULT;
+ 			break;
+ 		}
+@@ -2341,7 +2341,7 @@ static int compat_do_ebt_get_ctl(struct sock *sk, int cmd,
+ 		tmp.entries_size = t->table->entries_size;
+ 		tmp.valid_hooks = t->table->valid_hooks;
+ 
+-		if (copy_to_user(user, &tmp, *len) != 0) {
++		if (*len > sizeof(tmp) || copy_to_user(user, &tmp, *len) != 0) {
+ 			ret = -EFAULT;
+ 			break;
+ 		}
+diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
+index 0f45522..dab651f 100644
+--- a/net/caif/cfctrl.c
++++ b/net/caif/cfctrl.c
+@@ -10,6 +10,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/slab.h>
+ #include <linux/pkt_sched.h>
++#include <linux/sched.h>
+ #include <net/caif/caif_layer.h>
+ #include <net/caif/cfpkt.h>
+ #include <net/caif/cfctrl.h>
+@@ -43,8 +44,8 @@ struct cflayer *cfctrl_create(void)
+ 	memset(&dev_info, 0, sizeof(dev_info));
+ 	dev_info.id = 0xff;
+ 	cfsrvl_init(&this->serv, 0, &dev_info, false);
+-	atomic_set(&this->req_seq_no, 1);
+-	atomic_set(&this->rsp_seq_no, 1);
++	atomic_set_unchecked(&this->req_seq_no, 1);
++	atomic_set_unchecked(&this->rsp_seq_no, 1);
+ 	this->serv.layer.receive = cfctrl_recv;
+ 	sprintf(this->serv.layer.name, "ctrl");
+ 	this->serv.layer.ctrlcmd = cfctrl_ctrlcmd;
+@@ -130,8 +131,8 @@ static void cfctrl_insert_req(struct cfctrl *ctrl,
+ 			      struct cfctrl_request_info *req)
+ {
+ 	spin_lock_bh(&ctrl->info_list_lock);
+-	atomic_inc(&ctrl->req_seq_no);
+-	req->sequence_no = atomic_read(&ctrl->req_seq_no);
++	atomic_inc_unchecked(&ctrl->req_seq_no);
++	req->sequence_no = atomic_read_unchecked(&ctrl->req_seq_no);
+ 	list_add_tail(&req->list, &ctrl->list);
+ 	spin_unlock_bh(&ctrl->info_list_lock);
+ }
+@@ -149,7 +150,7 @@ static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
+ 			if (p != first)
+ 				pr_warn("Requests are not received in order\n");
+ 
+-			atomic_set(&ctrl->rsp_seq_no,
++			atomic_set_unchecked(&ctrl->rsp_seq_no,
+ 					 p->sequence_no);
+ 			list_del(&p->list);
+ 			goto out;
+diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
+index 4589ff67..46d6b8f 100644
+--- a/net/caif/chnl_net.c
++++ b/net/caif/chnl_net.c
+@@ -516,7 +516,7 @@ static const struct nla_policy ipcaif_policy[IFLA_CAIF_MAX + 1] = {
+ };
+ 
+ 
+-static struct rtnl_link_ops ipcaif_link_ops __read_mostly = {
++static struct rtnl_link_ops ipcaif_link_ops = {
+ 	.kind		= "caif",
+ 	.priv_size	= sizeof(struct chnl_net),
+ 	.setup		= ipcaif_net_setup,
+diff --git a/net/can/af_can.c b/net/can/af_can.c
+index 5e9a227..92270b3 100644
+--- a/net/can/af_can.c
++++ b/net/can/af_can.c
+@@ -866,7 +866,7 @@ static const struct net_proto_family can_family_ops = {
+ };
+ 
+ /* notifier block for netdevice event */
+-static struct notifier_block can_netdev_notifier __read_mostly = {
++static struct notifier_block can_netdev_notifier = {
+ 	.notifier_call = can_notifier,
+ };
+ 
+diff --git a/net/can/bcm.c b/net/can/bcm.c
+index dcb75c0..24b1b43 100644
+--- a/net/can/bcm.c
++++ b/net/can/bcm.c
+@@ -1624,7 +1624,7 @@ static int __init bcm_module_init(void)
+ 	}
+ 
+ 	/* create /proc/net/can-bcm directory */
+-	proc_dir = proc_mkdir("can-bcm", init_net.proc_net);
++	proc_dir = proc_mkdir_restrict("can-bcm", init_net.proc_net);
+ 	return 0;
+ }
+ 
+diff --git a/net/can/gw.c b/net/can/gw.c
+index 050a211..bb9fe33 100644
+--- a/net/can/gw.c
++++ b/net/can/gw.c
+@@ -80,7 +80,6 @@ MODULE_PARM_DESC(max_hops,
+ 		 "default: " __stringify(CGW_DEFAULT_HOPS) ")");
+ 
+ static HLIST_HEAD(cgw_list);
+-static struct notifier_block notifier;
+ 
+ static struct kmem_cache *cgw_cache __read_mostly;
+ 
+@@ -947,6 +946,10 @@ static int cgw_remove_job(struct sk_buff *skb, struct nlmsghdr *nlh)
+ 	return err;
+ }
+ 
++static struct notifier_block notifier = {
++	.notifier_call = cgw_notifier
++};
++
+ static __init int cgw_module_init(void)
+ {
+ 	/* sanitize given module parameter */
+@@ -962,7 +965,6 @@ static __init int cgw_module_init(void)
+ 		return -ENOMEM;
+ 
+ 	/* set notifier */
+-	notifier.notifier_call = cgw_notifier;
+ 	register_netdevice_notifier(&notifier);
+ 
+ 	if (__rtnl_register(PF_CAN, RTM_GETROUTE, NULL, cgw_dump_jobs, NULL)) {
+diff --git a/net/can/proc.c b/net/can/proc.c
+index b543470..d2ddae2 100644
+--- a/net/can/proc.c
++++ b/net/can/proc.c
+@@ -468,7 +468,7 @@ static void can_remove_proc_readentry(const char *name)
+ void can_init_proc(void)
+ {
+ 	/* create /proc/net/can directory */
+-	can_dir = proc_mkdir("can", init_net.proc_net);
++	can_dir = proc_mkdir_restrict("can", init_net.proc_net);
+ 
+ 	if (!can_dir) {
+ 		printk(KERN_INFO "can: failed to create /proc/net/can . "
+diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
+index 2e87eec..6301eb0 100644
+--- a/net/ceph/messenger.c
++++ b/net/ceph/messenger.c
+@@ -187,7 +187,7 @@ static void con_fault(struct ceph_connection *con);
+ #define MAX_ADDR_STR_LEN	64	/* 54 is enough */
+ 
+ static char addr_str[ADDR_STR_COUNT][MAX_ADDR_STR_LEN];
+-static atomic_t addr_str_seq = ATOMIC_INIT(0);
++static atomic_unchecked_t addr_str_seq = ATOMIC_INIT(0);
+ 
+ static struct page *zero_page;		/* used in certain error cases */
+ 
+@@ -198,7 +198,7 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss)
+ 	struct sockaddr_in *in4 = (struct sockaddr_in *) ss;
+ 	struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) ss;
+ 
+-	i = atomic_inc_return(&addr_str_seq) & ADDR_STR_COUNT_MASK;
++	i = atomic_inc_return_unchecked(&addr_str_seq) & ADDR_STR_COUNT_MASK;
+ 	s = addr_str[i];
+ 
+ 	switch (ss->ss_family) {
+diff --git a/net/compat.c b/net/compat.c
+index d125290..e86e034 100644
+--- a/net/compat.c
++++ b/net/compat.c
+@@ -80,9 +80,9 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
+ 
+ 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
+ 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
+-	kmsg->msg_name = compat_ptr(tmp1);
+-	kmsg->msg_iov = compat_ptr(tmp2);
+-	kmsg->msg_control = compat_ptr(tmp3);
++	kmsg->msg_name = (void __force_kernel *)compat_ptr(tmp1);
++	kmsg->msg_iov = (void __force_kernel *)compat_ptr(tmp2);
++	kmsg->msg_control = (void __force_kernel *)compat_ptr(tmp3);
+ 	return 0;
+ }
+ 
+@@ -94,7 +94,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
+ 
+ 	if (kern_msg->msg_name && kern_msg->msg_namelen) {
+ 		if (mode == VERIFY_READ) {
+-			int err = move_addr_to_kernel(kern_msg->msg_name,
++			int err = move_addr_to_kernel((void __force_user *)kern_msg->msg_name,
+ 						      kern_msg->msg_namelen,
+ 						      kern_address);
+ 			if (err < 0)
+@@ -107,7 +107,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
+ 	}
+ 
+ 	tot_len = iov_from_user_compat_to_kern(kern_iov,
+-					  (struct compat_iovec __user *)kern_msg->msg_iov,
++					  (struct compat_iovec __force_user *)kern_msg->msg_iov,
+ 					  kern_msg->msg_iovlen);
+ 	if (tot_len >= 0)
+ 		kern_msg->msg_iov = kern_iov;
+@@ -127,20 +127,20 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
+ 
+ #define CMSG_COMPAT_FIRSTHDR(msg)			\
+ 	(((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ?	\
+-	 (struct compat_cmsghdr __user *)((msg)->msg_control) :		\
++	 (struct compat_cmsghdr __force_user *)((msg)->msg_control) :		\
+ 	 (struct compat_cmsghdr __user *)NULL)
+ 
+ #define CMSG_COMPAT_OK(ucmlen, ucmsg, mhdr) \
+ 	((ucmlen) >= sizeof(struct compat_cmsghdr) && \
+ 	 (ucmlen) <= (unsigned long) \
+ 	 ((mhdr)->msg_controllen - \
+-	  ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
++	  ((char __force_kernel *)(ucmsg) - (char *)(mhdr)->msg_control)))
+ 
+ static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,
+ 		struct compat_cmsghdr __user *cmsg, int cmsg_len)
+ {
+ 	char __user *ptr = (char __user *)cmsg + CMSG_COMPAT_ALIGN(cmsg_len);
+-	if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control) >
++	if ((unsigned long)(ptr + 1 - (char __force_user *)msg->msg_control) >
+ 			msg->msg_controllen)
+ 		return NULL;
+ 	return (struct compat_cmsghdr __user *)ptr;
+@@ -230,7 +230,7 @@ Efault:
+ 
+ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)
+ {
+-	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
++	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
+ 	struct compat_cmsghdr cmhdr;
+ 	struct compat_timeval ctv;
+ 	struct compat_timespec cts[3];
+@@ -286,7 +286,7 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat
+ 
+ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm)
+ {
+-	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;
++	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __force_user *) kmsg->msg_control;
+ 	int fdmax = (kmsg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);
+ 	int fdnum = scm->fp->count;
+ 	struct file **fp = scm->fp->fp;
+@@ -374,7 +374,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
+ 		return -EFAULT;
+ 	old_fs = get_fs();
+ 	set_fs(KERNEL_DS);
+-	err = sock_setsockopt(sock, level, optname, (char *)&ktime, sizeof(ktime));
++	err = sock_setsockopt(sock, level, optname, (char __force_user *)&ktime, sizeof(ktime));
+ 	set_fs(old_fs);
+ 
+ 	return err;
+@@ -435,7 +435,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
+ 	len = sizeof(ktime);
+ 	old_fs = get_fs();
+ 	set_fs(KERNEL_DS);
+-	err = sock_getsockopt(sock, level, optname, (char *) &ktime, &len);
++	err = sock_getsockopt(sock, level, optname, (char __force_user *) &ktime, (int __force_user *)&len);
+ 	set_fs(old_fs);
+ 
+ 	if (!err) {
+@@ -578,7 +578,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
+ 	case MCAST_JOIN_GROUP:
+ 	case MCAST_LEAVE_GROUP:
+ 	{
+-		struct compat_group_req __user *gr32 = (void *)optval;
++		struct compat_group_req __user *gr32 = (void __user *)optval;
+ 		struct group_req __user *kgr =
+ 			compat_alloc_user_space(sizeof(struct group_req));
+ 		u32 interface;
+@@ -599,7 +599,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
+ 	case MCAST_BLOCK_SOURCE:
+ 	case MCAST_UNBLOCK_SOURCE:
+ 	{
+-		struct compat_group_source_req __user *gsr32 = (void *)optval;
++		struct compat_group_source_req __user *gsr32 = (void __user *)optval;
+ 		struct group_source_req __user *kgsr = compat_alloc_user_space(
+ 			sizeof(struct group_source_req));
+ 		u32 interface;
+@@ -620,7 +620,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
+ 	}
+ 	case MCAST_MSFILTER:
+ 	{
+-		struct compat_group_filter __user *gf32 = (void *)optval;
++		struct compat_group_filter __user *gf32 = (void __user *)optval;
+ 		struct group_filter __user *kgf;
+ 		u32 interface, fmode, numsrc;
+ 
+@@ -658,7 +658,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
+ 	char __user *optval, int __user *optlen,
+ 	int (*getsockopt)(struct sock *, int, int, char __user *, int __user *))
+ {
+-	struct compat_group_filter __user *gf32 = (void *)optval;
++	struct compat_group_filter __user *gf32 = (void __user *)optval;
+ 	struct group_filter __user *kgf;
+ 	int __user	*koptlen;
+ 	u32 interface, fmode, numsrc;
+@@ -802,7 +802,7 @@ asmlinkage long compat_sys_socketcall(int call, u32 __user *args)
+ 
+ 	if (call < SYS_SOCKET || call > SYS_SENDMMSG)
+ 		return -EINVAL;
+-	if (copy_from_user(a, args, nas[call]))
++	if (nas[call] > sizeof a || copy_from_user(a, args, nas[call]))
+ 		return -EFAULT;
+ 	a0 = a[0];
+ 	a1 = a[1];
+diff --git a/net/core/datagram.c b/net/core/datagram.c
+index a16ed7b..eb44d17 100644
+--- a/net/core/datagram.c
++++ b/net/core/datagram.c
+@@ -301,7 +301,7 @@ int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags)
+ 	}
+ 
+ 	kfree_skb(skb);
+-	atomic_inc(&sk->sk_drops);
++	atomic_inc_unchecked(&sk->sk_drops);
+ 	sk_mem_reclaim_partial(sk);
+ 
+ 	return err;
+diff --git a/net/core/dev.c b/net/core/dev.c
+index 1b9e700..047273c 100644
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -1695,14 +1695,14 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
+ {
+ 	if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
+ 		if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
+-			atomic_long_inc(&dev->rx_dropped);
++			atomic_long_inc_unchecked(&dev->rx_dropped);
+ 			kfree_skb(skb);
+ 			return NET_RX_DROP;
+ 		}
+ 	}
+ 
+ 	if (unlikely(!is_skb_forwardable(dev, skb))) {
+-		atomic_long_inc(&dev->rx_dropped);
++		atomic_long_inc_unchecked(&dev->rx_dropped);
+ 		kfree_skb(skb);
+ 		return NET_RX_DROP;
+ 	}
+@@ -2461,7 +2461,7 @@ static int illegal_highdma(const struct net_device *dev, struct sk_buff *skb)
+ 
+ struct dev_gso_cb {
+ 	void (*destructor)(struct sk_buff *skb);
+-};
++} __no_const;
+ 
+ #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb)
+ 
+@@ -3240,7 +3240,7 @@ enqueue:
+ 
+ 	local_irq_restore(flags);
+ 
+-	atomic_long_inc(&skb->dev->rx_dropped);
++	atomic_long_inc_unchecked(&skb->dev->rx_dropped);
+ 	kfree_skb(skb);
+ 	return NET_RX_DROP;
+ }
+@@ -3321,7 +3321,7 @@ int netif_rx_ni(struct sk_buff *skb)
+ }
+ EXPORT_SYMBOL(netif_rx_ni);
+ 
+-static void net_tx_action(struct softirq_action *h)
++static __latent_entropy void net_tx_action(void)
+ {
+ 	struct softnet_data *sd = &__get_cpu_var(softnet_data);
+ 
+@@ -3658,7 +3658,7 @@ ncls:
+ 			ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
+ 	} else {
+ drop:
+-		atomic_long_inc(&skb->dev->rx_dropped);
++		atomic_long_inc_unchecked(&skb->dev->rx_dropped);
+ 		kfree_skb(skb);
+ 		/* Jamal, now you will not able to escape explaining
+ 		 * me how you were going to use this. :-)
+@@ -4348,7 +4348,7 @@ void netif_napi_del(struct napi_struct *napi)
+ }
+ EXPORT_SYMBOL(netif_napi_del);
+ 
+-static void net_rx_action(struct softirq_action *h)
++static __latent_entropy void net_rx_action(void)
+ {
+ 	struct softnet_data *sd = &__get_cpu_var(softnet_data);
+ 	unsigned long time_limit = jiffies + 2;
+@@ -5068,7 +5068,7 @@ void netdev_upper_dev_unlink(struct net_device *dev,
+ }
+ EXPORT_SYMBOL(netdev_upper_dev_unlink);
+ 
+-void netdev_adjacent_add_links(struct net_device *dev)
++static void netdev_adjacent_add_links(struct net_device *dev)
+ {
+ 	struct netdev_adjacent *iter;
+ 
+@@ -5093,7 +5093,7 @@ void netdev_adjacent_add_links(struct net_device *dev)
+ 	}
+ }
+ 
+-void netdev_adjacent_del_links(struct net_device *dev)
++static void netdev_adjacent_del_links(struct net_device *dev)
+ {
+ 	struct netdev_adjacent *iter;
+ 
+@@ -6378,7 +6378,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+ 	} else {
+ 		netdev_stats_to_stats64(storage, &dev->stats);
+ 	}
+-	storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
++	storage->rx_dropped += atomic_long_read_unchecked(&dev->rx_dropped);
+ 	return storage;
+ }
+ EXPORT_SYMBOL(dev_get_stats);
+@@ -6394,7 +6394,7 @@ struct netdev_queue *dev_ingress_queue_create(struct net_device *dev)
+ 	if (!queue)
+ 		return NULL;
+ 	netdev_init_one_queue(dev, queue, NULL);
+-	queue->qdisc = &noop_qdisc;
++	RCU_INIT_POINTER(queue->qdisc, &noop_qdisc);
+ 	queue->qdisc_sleeping = &noop_qdisc;
+ 	rcu_assign_pointer(dev->ingress_queue, queue);
+ #endif
+diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
+index cf999e0..c59a9754 100644
+--- a/net/core/dev_ioctl.c
++++ b/net/core/dev_ioctl.c
+@@ -366,9 +366,13 @@ void dev_load(struct net *net, const char *name)
+ 	if (no_module && capable(CAP_NET_ADMIN))
+ 		no_module = request_module("netdev-%s", name);
+ 	if (no_module && capable(CAP_SYS_MODULE)) {
++#ifdef CONFIG_GRKERNSEC_MODHARDEN
++		___request_module(true, "grsec_modharden_netdev", "%s", name);
++#else
+ 		if (!request_module("%s", name))
+ 			pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%s instead.\n",
+ 				name);
++#endif
+ 	}
+ }
+ EXPORT_SYMBOL(dev_load);
+diff --git a/net/core/filter.c b/net/core/filter.c
+index ebce437..9fed9d0 100644
+--- a/net/core/filter.c
++++ b/net/core/filter.c
+@@ -126,7 +126,7 @@ unsigned int sk_run_filter(const struct sk_buff *skb,
+ 	void *ptr;
+ 	u32 A = 0;			/* Accumulator */
+ 	u32 X = 0;			/* Index Register */
+-	u32 mem[BPF_MEMWORDS];		/* Scratch Memory Store */
++	u32 mem[BPF_MEMWORDS] = {};	/* Scratch Memory Store */
+ 	u32 tmp;
+ 	int k;
+ 
+@@ -292,10 +292,10 @@ load_b:
+ 			X = K;
+ 			continue;
+ 		case BPF_S_LD_MEM:
+-			A = mem[K];
++			A = mem[K&15];
+ 			continue;
+ 		case BPF_S_LDX_MEM:
+-			X = mem[K];
++			X = mem[K&15];
+ 			continue;
+ 		case BPF_S_MISC_TAX:
+ 			X = A;
+@@ -308,10 +308,10 @@ load_b:
+ 		case BPF_S_RET_A:
+ 			return A;
+ 		case BPF_S_ST:
+-			mem[K] = A;
++			mem[K&15] = A;
+ 			continue;
+ 		case BPF_S_STX:
+-			mem[K] = X;
++			mem[K&15] = X;
+ 			continue;
+ 		case BPF_S_ANC_PROTOCOL:
+ 			A = ntohs(skb->protocol);
+@@ -395,9 +395,10 @@ load_b:
+ 			continue;
+ #endif
+ 		default:
+-			WARN_RATELIMIT(1, "Unknown code:%u jt:%u tf:%u k:%u\n",
++			WARN(1, KERN_ALERT "Unknown sock filter code:%u jt:%u tf:%u k:%u\n",
+ 				       fentry->code, fentry->jt,
+ 				       fentry->jf, fentry->k);
++			BUG();
+ 			return 0;
+ 		}
+ 	}
+@@ -420,7 +421,7 @@ static int check_load_and_stores(struct sock_filter *filter, int flen)
+ 	u16 *masks, memvalid = 0; /* one bit per cell, 16 cells */
+ 	int pc, ret = 0;
+ 
+-	BUILD_BUG_ON(BPF_MEMWORDS > 16);
++	BUILD_BUG_ON(BPF_MEMWORDS != 16);
+ 	masks = kmalloc(flen * sizeof(*masks), GFP_KERNEL);
+ 	if (!masks)
+ 		return -ENOMEM;
+@@ -683,7 +684,7 @@ int sk_unattached_filter_create(struct sk_filter **pfp,
+ 	fp = kmalloc(sk_filter_size(fprog->len), GFP_KERNEL);
+ 	if (!fp)
+ 		return -ENOMEM;
+-	memcpy(fp->insns, fprog->filter, fsize);
++	memcpy(fp->insns, (void __force_kernel *)fprog->filter, fsize);
+ 
+ 	atomic_set(&fp->refcnt, 1);
+ 	fp->len = fprog->len;
+diff --git a/net/core/flow.c b/net/core/flow.c
+index dfa602c..3103d88 100644
+--- a/net/core/flow.c
++++ b/net/core/flow.c
+@@ -61,7 +61,7 @@ struct flow_cache {
+ 	struct timer_list		rnd_timer;
+ };
+ 
+-atomic_t flow_cache_genid = ATOMIC_INIT(0);
++atomic_unchecked_t flow_cache_genid = ATOMIC_INIT(0);
+ EXPORT_SYMBOL(flow_cache_genid);
+ static struct flow_cache flow_cache_global;
+ static struct kmem_cache *flow_cachep __read_mostly;
+@@ -86,7 +86,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
+ 
+ static int flow_entry_valid(struct flow_cache_entry *fle)
+ {
+-	if (atomic_read(&flow_cache_genid) != fle->genid)
++	if (atomic_read_unchecked(&flow_cache_genid) != fle->genid)
+ 		return 0;
+ 	if (fle->object && !fle->object->ops->check(fle->object))
+ 		return 0;
+@@ -258,7 +258,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
+ 			hlist_add_head(&fle->u.hlist, &fcp->hash_table[hash]);
+ 			fcp->hash_count++;
+ 		}
+-	} else if (likely(fle->genid == atomic_read(&flow_cache_genid))) {
++	} else if (likely(fle->genid == atomic_read_unchecked(&flow_cache_genid))) {
+ 		flo = fle->object;
+ 		if (!flo)
+ 			goto ret_object;
+@@ -279,7 +279,7 @@ nocache:
+ 	}
+ 	flo = resolver(net, key, family, dir, flo, ctx);
+ 	if (fle) {
+-		fle->genid = atomic_read(&flow_cache_genid);
++		fle->genid = atomic_read_unchecked(&flow_cache_genid);
+ 		if (!IS_ERR(flo))
+ 			fle->object = flo;
+ 		else
+diff --git a/net/core/iovec.c b/net/core/iovec.c
+index 26dc006..89e838e 100644
+--- a/net/core/iovec.c
++++ b/net/core/iovec.c
+@@ -42,7 +42,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
+ 	if (m->msg_name && m->msg_namelen) {
+ 		if (mode == VERIFY_READ) {
+ 			void __user *namep;
+-			namep = (void __user __force *) m->msg_name;
++			namep = (void __force_user *) m->msg_name;
+ 			err = move_addr_to_kernel(namep, m->msg_namelen,
+ 						  address);
+ 			if (err < 0)
+@@ -55,7 +55,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
+ 	}
+ 
+ 	size = m->msg_iovlen * sizeof(struct iovec);
+-	if (copy_from_user(iov, (void __user __force *) m->msg_iov, size))
++	if (copy_from_user(iov, (void __force_user *) m->msg_iov, size))
+ 		return -EFAULT;
+ 
+ 	m->msg_iov = iov;
+diff --git a/net/core/neighbour.c b/net/core/neighbour.c
+index 7d95f69..1d316b1 100644
+--- a/net/core/neighbour.c
++++ b/net/core/neighbour.c
+@@ -976,6 +976,8 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
+ 	rc = 0;
+ 	if (neigh->nud_state & (NUD_CONNECTED | NUD_DELAY | NUD_PROBE))
+ 		goto out_unlock_bh;
++	if (neigh->dead)
++		goto out_dead;
+ 
+ 	if (!(neigh->nud_state & (NUD_STALE | NUD_INCOMPLETE))) {
+ 		if (NEIGH_VAR(neigh->parms, MCAST_PROBES) +
+@@ -1032,6 +1034,13 @@ out_unlock_bh:
+ 		write_unlock(&neigh->lock);
+ 	local_bh_enable();
+ 	return rc;
++
++out_dead:
++	if (neigh->nud_state & NUD_STALE)
++		goto out_unlock_bh;
++	write_unlock_bh(&neigh->lock);
++	kfree_skb(skb);
++	return 1;
+ }
+ EXPORT_SYMBOL(__neigh_event_send);
+ 
+@@ -1095,6 +1104,8 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
+ 	if (!(flags & NEIGH_UPDATE_F_ADMIN) &&
+ 	    (old & (NUD_NOARP | NUD_PERMANENT)))
+ 		goto out;
++	if (neigh->dead)
++		goto out;
+ 
+ 	if (!(new & NUD_VALID)) {
+ 		neigh_del_timer(neigh);
+@@ -1244,6 +1255,8 @@ EXPORT_SYMBOL(neigh_update);
+  */
+ void __neigh_set_probe_once(struct neighbour *neigh)
+ {
++	if (neigh->dead)
++		return;
+ 	neigh->updated = jiffies;
+ 	if (!(neigh->nud_state & NUD_FAILED))
+ 		return;
+@@ -2824,7 +2837,7 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write,
+ 			   void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+ 	int size, ret;
+-	struct ctl_table tmp = *ctl;
++	ctl_table_no_const tmp = *ctl;
+ 
+ 	tmp.extra1 = &zero;
+ 	tmp.extra2 = &unres_qlen_max;
+@@ -2886,7 +2899,7 @@ static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write,
+ 					   void __user *buffer,
+ 					   size_t *lenp, loff_t *ppos)
+ {
+-	struct ctl_table tmp = *ctl;
++	ctl_table_no_const tmp = *ctl;
+ 	int ret;
+ 
+ 	tmp.extra1 = &zero;
+@@ -3058,11 +3071,12 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
+ 		memset(&t->neigh_vars[NEIGH_VAR_GC_INTERVAL], 0,
+ 		       sizeof(t->neigh_vars[NEIGH_VAR_GC_INTERVAL]));
+ 	} else {
++		struct neigh_table *ntable = container_of(p, struct neigh_table, parms);
+ 		dev_name_source = "default";
+-		t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = (int *)(p + 1);
+-		t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = (int *)(p + 1) + 1;
+-		t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = (int *)(p + 1) + 2;
+-		t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = (int *)(p + 1) + 3;
++		t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = &ntable->gc_interval;
++		t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = &ntable->gc_thresh1;
++		t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = &ntable->gc_thresh2;
++		t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = &ntable->gc_thresh3;
+ 	}
+ 
+ 	if (handler) {
+diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
+index 2bf8329..2eb1423 100644
+--- a/net/core/net-procfs.c
++++ b/net/core/net-procfs.c
+@@ -79,7 +79,13 @@ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
+ 	struct rtnl_link_stats64 temp;
+ 	const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
+ 
+-	seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
++	if (gr_proc_is_restricted())
++		seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
++		   "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
++		   dev->name, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL,
++		   0ULL, 0ULL, 0ULL, 0ULL, 0ULL, 0ULL);
++	else
++		seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
+ 		   "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
+ 		   dev->name, stats->rx_bytes, stats->rx_packets,
+ 		   stats->rx_errors,
+@@ -166,7 +172,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
+ 	return 0;
+ }
+ 
+-static const struct seq_operations dev_seq_ops = {
++const struct seq_operations dev_seq_ops = {
+ 	.start = dev_seq_start,
+ 	.next  = dev_seq_next,
+ 	.stop  = dev_seq_stop,
+@@ -196,7 +202,7 @@ static const struct seq_operations softnet_seq_ops = {
+ 
+ static int softnet_seq_open(struct inode *inode, struct file *file)
+ {
+-	return seq_open(file, &softnet_seq_ops);
++	return seq_open_restrict(file, &softnet_seq_ops);
+ }
+ 
+ static const struct file_operations softnet_seq_fops = {
+@@ -283,8 +289,13 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
+ 		else
+ 			seq_printf(seq, "%04x", ntohs(pt->type));
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++		seq_printf(seq, " %-8s %pf\n",
++			   pt->dev ? pt->dev->name : "", NULL);
++#else
+ 		seq_printf(seq, " %-8s %pf\n",
+ 			   pt->dev ? pt->dev->name : "", pt->func);
++#endif
+ 	}
+ 
+ 	return 0;
+diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
+index 7c8ffd9..0cb3687 100644
+--- a/net/core/net_namespace.c
++++ b/net/core/net_namespace.c
+@@ -443,7 +443,7 @@ static int __register_pernet_operations(struct list_head *list,
+ 	int error;
+ 	LIST_HEAD(net_exit_list);
+ 
+-	list_add_tail(&ops->list, list);
++	pax_list_add_tail((struct list_head *)&ops->list, list);
+ 	if (ops->init || (ops->id && ops->size)) {
+ 		for_each_net(net) {
+ 			error = ops_init(ops, net);
+@@ -456,7 +456,7 @@ static int __register_pernet_operations(struct list_head *list,
+ 
+ out_undo:
+ 	/* If I have an error cleanup all namespaces I initialized */
+-	list_del(&ops->list);
++	pax_list_del((struct list_head *)&ops->list);
+ 	ops_exit_list(ops, &net_exit_list);
+ 	ops_free_list(ops, &net_exit_list);
+ 	return error;
+@@ -467,7 +467,7 @@ static void __unregister_pernet_operations(struct pernet_operations *ops)
+ 	struct net *net;
+ 	LIST_HEAD(net_exit_list);
+ 
+-	list_del(&ops->list);
++	pax_list_del((struct list_head *)&ops->list);
+ 	for_each_net(net)
+ 		list_add_tail(&net->exit_list, &net_exit_list);
+ 	ops_exit_list(ops, &net_exit_list);
+@@ -601,7 +601,7 @@ int register_pernet_device(struct pernet_operations *ops)
+ 	mutex_lock(&net_mutex);
+ 	error = register_pernet_operations(&pernet_list, ops);
+ 	if (!error && (first_device == &pernet_list))
+-		first_device = &ops->list;
++		first_device = (struct list_head *)&ops->list;
+ 	mutex_unlock(&net_mutex);
+ 	return error;
+ }
+diff --git a/net/core/netpoll.c b/net/core/netpoll.c
+index 723fa7d..81bd037 100644
+--- a/net/core/netpoll.c
++++ b/net/core/netpoll.c
+@@ -435,7 +435,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
+ 	struct udphdr *udph;
+ 	struct iphdr *iph;
+ 	struct ethhdr *eth;
+-	static atomic_t ip_ident;
++	static atomic_unchecked_t ip_ident;
+ 	struct ipv6hdr *ip6h;
+ 
+ 	udp_len = len + sizeof(*udph);
+@@ -506,7 +506,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
+ 		put_unaligned(0x45, (unsigned char *)iph);
+ 		iph->tos      = 0;
+ 		put_unaligned(htons(ip_len), &(iph->tot_len));
+-		iph->id       = htons(atomic_inc_return(&ip_ident));
++		iph->id       = htons(atomic_inc_return_unchecked(&ip_ident));
+ 		iph->frag_off = 0;
+ 		iph->ttl      = 64;
+ 		iph->protocol = IPPROTO_UDP;
+diff --git a/net/core/pktgen.c b/net/core/pktgen.c
+index ca68d32..236499d 100644
+--- a/net/core/pktgen.c
++++ b/net/core/pktgen.c
+@@ -3719,7 +3719,7 @@ static int __net_init pg_net_init(struct net *net)
+ 	pn->net = net;
+ 	INIT_LIST_HEAD(&pn->pktgen_threads);
+ 	pn->pktgen_exiting = false;
+-	pn->proc_dir = proc_mkdir(PG_PROC_DIR, pn->net->proc_net);
++	pn->proc_dir = proc_mkdir_restrict(PG_PROC_DIR, pn->net->proc_net);
+ 	if (!pn->proc_dir) {
+ 		pr_warn("cannot create /proc/net/%s\n", PG_PROC_DIR);
+ 		return -ENODEV;
+diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
+index 8aadd6a..adf3f59 100644
+--- a/net/core/rtnetlink.c
++++ b/net/core/rtnetlink.c
+@@ -58,7 +58,7 @@ struct rtnl_link {
+ 	rtnl_doit_func		doit;
+ 	rtnl_dumpit_func	dumpit;
+ 	rtnl_calcit_func 	calcit;
+-};
++} __no_const;
+ 
+ static DEFINE_MUTEX(rtnl_mutex);
+ 
+@@ -299,10 +299,13 @@ int __rtnl_link_register(struct rtnl_link_ops *ops)
+ 	if (rtnl_link_ops_get(ops->kind))
+ 		return -EEXIST;
+ 
+-	if (!ops->dellink)
+-		ops->dellink = unregister_netdevice_queue;
++	if (!ops->dellink) {
++		pax_open_kernel();
++		*(void **)&ops->dellink = unregister_netdevice_queue;
++		pax_close_kernel();
++	}
+ 
+-	list_add_tail(&ops->list, &link_ops);
++	pax_list_add_tail((struct list_head *)&ops->list, &link_ops);
+ 	return 0;
+ }
+ EXPORT_SYMBOL_GPL(__rtnl_link_register);
+@@ -349,7 +352,7 @@ void __rtnl_link_unregister(struct rtnl_link_ops *ops)
+ 	for_each_net(net) {
+ 		__rtnl_kill_links(net, ops);
+ 	}
+-	list_del(&ops->list);
++	pax_list_del((struct list_head *)&ops->list);
+ }
+ EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
+ 
+@@ -2006,6 +2009,10 @@ replay:
+ 		if (IS_ERR(dest_net))
+ 			return PTR_ERR(dest_net);
+ 
++		err = -EPERM;
++		if (!netlink_ns_capable(skb, dest_net->user_ns, CAP_NET_ADMIN))
++			goto out;
++
+ 		dev = rtnl_create_link(dest_net, ifname, ops, tb);
+ 		if (IS_ERR(dev)) {
+ 			err = PTR_ERR(dev);
+@@ -2693,6 +2700,9 @@ static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
+ 	if (br_spec) {
+ 		nla_for_each_nested(attr, br_spec, rem) {
+ 			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
++				if (nla_len(attr) < sizeof(flags))
++					return -EINVAL;
++
+ 				have_flags = true;
+ 				flags = nla_get_u16(attr);
+ 				break;
+@@ -2763,6 +2773,9 @@ static int rtnl_bridge_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
+ 	if (br_spec) {
+ 		nla_for_each_nested(attr, br_spec, rem) {
+ 			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
++				if (nla_len(attr) < sizeof(flags))
++					return -EINVAL;
++
+ 				have_flags = true;
+ 				flags = nla_get_u16(attr);
+ 				break;
+diff --git a/net/core/scm.c b/net/core/scm.c
+index b442e7e..6f5b5a2 100644
+--- a/net/core/scm.c
++++ b/net/core/scm.c
+@@ -210,7 +210,7 @@ EXPORT_SYMBOL(__scm_send);
+ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
+ {
+ 	struct cmsghdr __user *cm
+-		= (__force struct cmsghdr __user *)msg->msg_control;
++		= (struct cmsghdr __force_user *)msg->msg_control;
+ 	struct cmsghdr cmhdr;
+ 	int cmlen = CMSG_LEN(len);
+ 	int err;
+@@ -233,7 +233,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
+ 	err = -EFAULT;
+ 	if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
+ 		goto out;
+-	if (copy_to_user(CMSG_DATA(cm), data, cmlen - sizeof(struct cmsghdr)))
++	if (copy_to_user((void __force_user *)CMSG_DATA((void __force_kernel *)cm), data, cmlen - sizeof(struct cmsghdr)))
+ 		goto out;
+ 	cmlen = CMSG_SPACE(len);
+ 	if (msg->msg_controllen < cmlen)
+@@ -249,7 +249,7 @@ EXPORT_SYMBOL(put_cmsg);
+ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
+ {
+ 	struct cmsghdr __user *cm
+-		= (__force struct cmsghdr __user*)msg->msg_control;
++		= (struct cmsghdr __force_user *)msg->msg_control;
+ 
+ 	int fdmax = 0;
+ 	int fdnum = scm->fp->count;
+@@ -269,7 +269,7 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
+ 	if (fdnum < fdmax)
+ 		fdmax = fdnum;
+ 
+-	for (i=0, cmfptr=(__force int __user *)CMSG_DATA(cm); i<fdmax;
++	for (i=0, cmfptr=(int __force_user *)CMSG_DATA((void __force_kernel *)cm); i<fdmax;
+ 	     i++, cmfptr++)
+ 	{
+ 		struct socket *sock;
+diff --git a/net/core/skbuff.c b/net/core/skbuff.c
+index 69ec61a..61843ef 100644
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -378,18 +378,29 @@ refill:
+ 				goto end;
+ 		}
+ 		nc->frag.size = PAGE_SIZE << order;
+-recycle:
+-		atomic_set(&nc->frag.page->_count, NETDEV_PAGECNT_MAX_BIAS);
++		/* Even if we own the page, we do not use atomic_set().
++		 * This would break get_page_unless_zero() users.
++		 */
++		atomic_add(NETDEV_PAGECNT_MAX_BIAS - 1,
++			   &nc->frag.page->_count);
+ 		nc->pagecnt_bias = NETDEV_PAGECNT_MAX_BIAS;
+ 		nc->frag.offset = 0;
+ 	}
+ 
+ 	if (nc->frag.offset + fragsz > nc->frag.size) {
+-		/* avoid unnecessary locked operations if possible */
+-		if ((atomic_read(&nc->frag.page->_count) == nc->pagecnt_bias) ||
+-		    atomic_sub_and_test(nc->pagecnt_bias, &nc->frag.page->_count))
+-			goto recycle;
+-		goto refill;
++		if (atomic_read(&nc->frag.page->_count) != nc->pagecnt_bias) {
++			if (!atomic_sub_and_test(nc->pagecnt_bias,
++						 &nc->frag.page->_count))
++				goto refill;
++			/* OK, page count is 0, we can safely set it */
++			atomic_set(&nc->frag.page->_count,
++				   NETDEV_PAGECNT_MAX_BIAS);
++		} else {
++			atomic_add(NETDEV_PAGECNT_MAX_BIAS - nc->pagecnt_bias,
++				   &nc->frag.page->_count);
++		}
++		nc->pagecnt_bias = NETDEV_PAGECNT_MAX_BIAS;
++		nc->frag.offset = 0;
+ 	}
+ 
+ 	data = page_address(nc->frag.page) + nc->frag.offset;
+@@ -2022,7 +2033,7 @@ EXPORT_SYMBOL(__skb_checksum);
+ __wsum skb_checksum(const struct sk_buff *skb, int offset,
+ 		    int len, __wsum csum)
+ {
+-	const struct skb_checksum_ops ops = {
++	static const struct skb_checksum_ops ops = {
+ 		.update  = csum_partial_ext,
+ 		.combine = csum_block_add_ext,
+ 	};
+@@ -3243,13 +3254,15 @@ void __init skb_init(void)
+ 	skbuff_head_cache = kmem_cache_create("skbuff_head_cache",
+ 					      sizeof(struct sk_buff),
+ 					      0,
+-					      SLAB_HWCACHE_ALIGN|SLAB_PANIC,
++					      SLAB_HWCACHE_ALIGN|SLAB_PANIC|
++					      SLAB_NO_SANITIZE,
+ 					      NULL);
+ 	skbuff_fclone_cache = kmem_cache_create("skbuff_fclone_cache",
+ 						(2*sizeof(struct sk_buff)) +
+ 						sizeof(atomic_t),
+ 						0,
+-						SLAB_HWCACHE_ALIGN|SLAB_PANIC,
++						SLAB_HWCACHE_ALIGN|SLAB_PANIC|
++						SLAB_NO_SANITIZE,
+ 						NULL);
+ }
+ 
+diff --git a/net/core/sock.c b/net/core/sock.c
+index 650dd58..25162a5 100644
+--- a/net/core/sock.c
++++ b/net/core/sock.c
+@@ -442,7 +442,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ 	struct sk_buff_head *list = &sk->sk_receive_queue;
+ 
+ 	if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) {
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		trace_sock_rcvqueue_full(sk, skb);
+ 		return -ENOMEM;
+ 	}
+@@ -452,7 +452,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ 		return err;
+ 
+ 	if (!sk_rmem_schedule(sk, skb, skb->truesize)) {
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		return -ENOBUFS;
+ 	}
+ 
+@@ -472,7 +472,7 @@ int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ 	skb_dst_force(skb);
+ 
+ 	spin_lock_irqsave(&list->lock, flags);
+-	skb->dropcount = atomic_read(&sk->sk_drops);
++	skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
+ 	__skb_queue_tail(list, skb);
+ 	spin_unlock_irqrestore(&list->lock, flags);
+ 
+@@ -492,7 +492,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
+ 	skb->dev = NULL;
+ 
+ 	if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		goto discard_and_relse;
+ 	}
+ 	if (nested)
+@@ -510,7 +510,7 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested)
+ 		mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
+ 	} else if (sk_add_backlog(sk, skb, sk->sk_rcvbuf)) {
+ 		bh_unlock_sock(sk);
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		goto discard_and_relse;
+ 	}
+ 
+@@ -1017,12 +1017,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
+ 		struct timeval tm;
+ 	} v;
+ 
+-	int lv = sizeof(int);
+-	int len;
++	unsigned int lv = sizeof(int);
++	unsigned int len;
+ 
+ 	if (get_user(len, optlen))
+ 		return -EFAULT;
+-	if (len < 0)
++	if (len > INT_MAX)
+ 		return -EINVAL;
+ 
+ 	memset(&v, 0, sizeof(v));
+@@ -1174,11 +1174,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
+ 
+ 	case SO_PEERNAME:
+ 	{
+-		char address[128];
++		char address[_K_SS_MAXSIZE];
+ 
+ 		if (sock->ops->getname(sock, (struct sockaddr *)address, &lv, 2))
+ 			return -ENOTCONN;
+-		if (lv < len)
++		if (lv < len || sizeof address < len)
+ 			return -EINVAL;
+ 		if (copy_to_user(optval, address, len))
+ 			return -EFAULT;
+@@ -1259,7 +1259,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
+ 
+ 	if (len > lv)
+ 		len = lv;
+-	if (copy_to_user(optval, &v, len))
++	if (len > sizeof(v) || copy_to_user(optval, &v, len))
+ 		return -EFAULT;
+ lenout:
+ 	if (put_user(len, optlen))
+@@ -1750,6 +1750,8 @@ EXPORT_SYMBOL(sock_kmalloc);
+  */
+ void sock_kfree_s(struct sock *sk, void *mem, int size)
+ {
++	if (WARN_ON_ONCE(!mem))
++		return;
+ 	kfree(mem);
+ 	atomic_sub(size, &sk->sk_omem_alloc);
+ }
+@@ -2394,7 +2396,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
+ 	 */
+ 	smp_wmb();
+ 	atomic_set(&sk->sk_refcnt, 1);
+-	atomic_set(&sk->sk_drops, 0);
++	atomic_set_unchecked(&sk->sk_drops, 0);
+ }
+ EXPORT_SYMBOL(sock_init_data);
+ 
+@@ -2522,6 +2524,7 @@ void sock_enable_timestamp(struct sock *sk, int flag)
+ int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
+ 		       int level, int type)
+ {
++	struct sock_extended_err ee;
+ 	struct sock_exterr_skb *serr;
+ 	struct sk_buff *skb, *skb2;
+ 	int copied, err;
+@@ -2543,7 +2546,8 @@ int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
+ 	sock_recv_timestamp(msg, sk, skb);
+ 
+ 	serr = SKB_EXT_ERR(skb);
+-	put_cmsg(msg, level, type, sizeof(serr->ee), &serr->ee);
++	ee = serr->ee;
++	put_cmsg(msg, level, type, sizeof ee, &ee);
+ 
+ 	msg->msg_flags |= MSG_ERRQUEUE;
+ 	err = copied;
+diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
+index c38e7a2..773e3d7 100644
+--- a/net/core/sock_diag.c
++++ b/net/core/sock_diag.c
+@@ -9,26 +9,33 @@
+ #include <linux/inet_diag.h>
+ #include <linux/sock_diag.h>
+ 
+-static const struct sock_diag_handler *sock_diag_handlers[AF_MAX];
++static const struct sock_diag_handler *sock_diag_handlers[AF_MAX] __read_only;
+ static int (*inet_rcv_compat)(struct sk_buff *skb, struct nlmsghdr *nlh);
+ static DEFINE_MUTEX(sock_diag_table_mutex);
+ 
+ int sock_diag_check_cookie(void *sk, __u32 *cookie)
+ {
++#ifndef CONFIG_GRKERNSEC_HIDESYM
+ 	if ((cookie[0] != INET_DIAG_NOCOOKIE ||
+ 	     cookie[1] != INET_DIAG_NOCOOKIE) &&
+ 	    ((u32)(unsigned long)sk != cookie[0] ||
+ 	     (u32)((((unsigned long)sk) >> 31) >> 1) != cookie[1]))
+ 		return -ESTALE;
+ 	else
++#endif
+ 		return 0;
+ }
+ EXPORT_SYMBOL_GPL(sock_diag_check_cookie);
+ 
+ void sock_diag_save_cookie(void *sk, __u32 *cookie)
+ {
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	cookie[0] = 0;
++	cookie[1] = 0;
++#else
+ 	cookie[0] = (u32)(unsigned long)sk;
+ 	cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
++#endif
+ }
+ EXPORT_SYMBOL_GPL(sock_diag_save_cookie);
+ 
+@@ -113,8 +120,11 @@ int sock_diag_register(const struct sock_diag_handler *hndl)
+ 	mutex_lock(&sock_diag_table_mutex);
+ 	if (sock_diag_handlers[hndl->family])
+ 		err = -EBUSY;
+-	else
++	else {
++		pax_open_kernel();
+ 		sock_diag_handlers[hndl->family] = hndl;
++		pax_close_kernel();
++	}
+ 	mutex_unlock(&sock_diag_table_mutex);
+ 
+ 	return err;
+@@ -130,7 +140,9 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
+ 
+ 	mutex_lock(&sock_diag_table_mutex);
+ 	BUG_ON(sock_diag_handlers[family] != hnld);
++	pax_open_kernel();
+ 	sock_diag_handlers[family] = NULL;
++	pax_close_kernel();
+ 	mutex_unlock(&sock_diag_table_mutex);
+ }
+ EXPORT_SYMBOL_GPL(sock_diag_unregister);
+diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
+index e731c96..26d07e0 100644
+--- a/net/core/sysctl_net_core.c
++++ b/net/core/sysctl_net_core.c
+@@ -34,7 +34,7 @@ static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
+ {
+ 	unsigned int orig_size, size;
+ 	int ret, i;
+-	struct ctl_table tmp = {
++	ctl_table_no_const tmp = {
+ 		.data = &size,
+ 		.maxlen = sizeof(size),
+ 		.mode = table->mode
+@@ -202,7 +202,7 @@ static int set_default_qdisc(struct ctl_table *table, int write,
+ 			     void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+ 	char id[IFNAMSIZ];
+-	struct ctl_table tbl = {
++	ctl_table_no_const tbl = {
+ 		.data = id,
+ 		.maxlen = IFNAMSIZ,
+ 	};
+@@ -381,13 +381,12 @@ static struct ctl_table netns_core_table[] = {
+ 
+ static __net_init int sysctl_core_net_init(struct net *net)
+ {
+-	struct ctl_table *tbl;
++	ctl_table_no_const *tbl = NULL;
+ 
+ 	net->core.sysctl_somaxconn = SOMAXCONN;
+ 
+-	tbl = netns_core_table;
+ 	if (!net_eq(net, &init_net)) {
+-		tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
++		tbl = kmemdup(netns_core_table, sizeof(netns_core_table), GFP_KERNEL);
+ 		if (tbl == NULL)
+ 			goto err_dup;
+ 
+@@ -397,17 +396,16 @@ static __net_init int sysctl_core_net_init(struct net *net)
+ 		if (net->user_ns != &init_user_ns) {
+ 			tbl[0].procname = NULL;
+ 		}
+-	}
+-
+-	net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
++		net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);
++	} else
++		net->core.sysctl_hdr = register_net_sysctl(net, "net/core", netns_core_table);
+ 	if (net->core.sysctl_hdr == NULL)
+ 		goto err_reg;
+ 
+ 	return 0;
+ 
+ err_reg:
+-	if (tbl != netns_core_table)
+-		kfree(tbl);
++	kfree(tbl);
+ err_dup:
+ 	return -ENOMEM;
+ }
+@@ -422,7 +420,7 @@ static __net_exit void sysctl_core_net_exit(struct net *net)
+ 	kfree(tbl);
+ }
+ 
+-static __net_initdata struct pernet_operations sysctl_core_ops = {
++static __net_initconst struct pernet_operations sysctl_core_ops = {
+ 	.init = sysctl_core_net_init,
+ 	.exit = sysctl_core_net_exit,
+ };
+diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
+index 9e2f78b..c18aad6 100644
+--- a/net/dccp/minisocks.c
++++ b/net/dccp/minisocks.c
+@@ -55,11 +55,9 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
+ 		const int rto = (icsk->icsk_rto << 2) - (icsk->icsk_rto >> 1);
+ #if IS_ENABLED(CONFIG_IPV6)
+ 		if (tw->tw_family == PF_INET6) {
+-			const struct ipv6_pinfo *np = inet6_sk(sk);
+-
+ 			tw->tw_v6_daddr = sk->sk_v6_daddr;
+ 			tw->tw_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
+-			tw->tw_ipv6only = np->ipv6only;
++			tw->tw_ipv6only = sk->sk_ipv6only;
+ 		}
+ #endif
+ 		/* Linkage updates. */
+diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
+index 4c04848..f575934 100644
+--- a/net/decnet/af_decnet.c
++++ b/net/decnet/af_decnet.c
+@@ -465,6 +465,7 @@ static struct proto dn_proto = {
+ 	.sysctl_rmem		= sysctl_decnet_rmem,
+ 	.max_header		= DN_MAX_NSP_DATA_HEADER + 64,
+ 	.obj_size		= sizeof(struct dn_sock),
++	.slab_flags		= SLAB_USERCOPY,
+ };
+ 
+ static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gfp)
+diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
+index 3b726f3..1af6368 100644
+--- a/net/decnet/dn_dev.c
++++ b/net/decnet/dn_dev.c
+@@ -200,7 +200,7 @@ static struct dn_dev_sysctl_table {
+ 		.extra1 = &min_t3,
+ 		.extra2 = &max_t3
+ 	},
+-	{0}
++	{ }
+ 	},
+ };
+ 
+diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
+index 5325b54..a0d4d69 100644
+--- a/net/decnet/sysctl_net_decnet.c
++++ b/net/decnet/sysctl_net_decnet.c
+@@ -174,7 +174,7 @@ static int dn_node_address_handler(struct ctl_table *table, int write,
+ 
+ 	if (len > *lenp) len = *lenp;
+ 
+-	if (copy_to_user(buffer, addr, len))
++	if (len > sizeof addr || copy_to_user(buffer, addr, len))
+ 		return -EFAULT;
+ 
+ 	*lenp = len;
+@@ -237,7 +237,7 @@ static int dn_def_dev_handler(struct ctl_table *table, int write,
+ 
+ 	if (len > *lenp) len = *lenp;
+ 
+-	if (copy_to_user(buffer, devname, len))
++	if (len > sizeof devname || copy_to_user(buffer, devname, len))
+ 		return -EFAULT;
+ 
+ 	*lenp = len;
+diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
+index 01a5261..29cea68 100644
+--- a/net/hsr/hsr_netlink.c
++++ b/net/hsr/hsr_netlink.c
+@@ -86,7 +86,7 @@ nla_put_failure:
+ 	return -EMSGSIZE;
+ }
+ 
+-static struct rtnl_link_ops hsr_link_ops __read_mostly = {
++static struct rtnl_link_ops hsr_link_ops = {
+ 	.kind		= "hsr",
+ 	.maxtype	= IFLA_HSR_MAX,
+ 	.policy		= hsr_policy,
+diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
+index 8edfea5..a17998f 100644
+--- a/net/ieee802154/6lowpan.c
++++ b/net/ieee802154/6lowpan.c
+@@ -714,7 +714,7 @@ static void lowpan_dellink(struct net_device *dev, struct list_head *head)
+ 	dev_put(real_dev);
+ }
+ 
+-static struct rtnl_link_ops lowpan_link_ops __read_mostly = {
++static struct rtnl_link_ops lowpan_link_ops = {
+ 	.kind		= "lowpan",
+ 	.priv_size	= sizeof(struct lowpan_dev_info),
+ 	.setup		= lowpan_setup,
+diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
+index 07bd8ed..c574801 100644
+--- a/net/ipv4/af_inet.c
++++ b/net/ipv4/af_inet.c
+@@ -1706,13 +1706,9 @@ static int __init inet_init(void)
+ 
+ 	BUILD_BUG_ON(sizeof(struct inet_skb_parm) > FIELD_SIZEOF(struct sk_buff, cb));
+ 
+-	sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);
+-	if (!sysctl_local_reserved_ports)
+-		goto out;
+-
+ 	rc = proto_register(&tcp_prot, 1);
+ 	if (rc)
+-		goto out_free_reserved_ports;
++		goto out;
+ 
+ 	rc = proto_register(&udp_prot, 1);
+ 	if (rc)
+@@ -1819,8 +1815,6 @@ out_unregister_udp_proto:
+ 	proto_unregister(&udp_prot);
+ out_unregister_tcp_proto:
+ 	proto_unregister(&tcp_prot);
+-out_free_reserved_ports:
+-	kfree(sysctl_local_reserved_ports);
+ 	goto out;
+ }
+ 
+diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
+index bdbf68b..f0d9c83 100644
+--- a/net/ipv4/devinet.c
++++ b/net/ipv4/devinet.c
+@@ -69,7 +69,8 @@
+ 
+ static struct ipv4_devconf ipv4_devconf = {
+ 	.data = {
+-		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
++		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
++		[IPV4_DEVCONF_RP_FILTER - 1] = 1,
+ 		[IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
+ 		[IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
+ 		[IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
+@@ -80,7 +81,8 @@ static struct ipv4_devconf ipv4_devconf = {
+ 
+ static struct ipv4_devconf ipv4_devconf_dflt = {
+ 	.data = {
+-		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 1,
++		[IPV4_DEVCONF_ACCEPT_REDIRECTS - 1] = 0,
++		[IPV4_DEVCONF_RP_FILTER - 1] = 1,
+ 		[IPV4_DEVCONF_SEND_REDIRECTS - 1] = 1,
+ 		[IPV4_DEVCONF_SECURE_REDIRECTS - 1] = 1,
+ 		[IPV4_DEVCONF_SHARED_MEDIA - 1] = 1,
+@@ -1543,7 +1545,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
+ 		idx = 0;
+ 		head = &net->dev_index_head[h];
+ 		rcu_read_lock();
+-		cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
++		cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
+ 			  net->dev_base_seq;
+ 		hlist_for_each_entry_rcu(dev, head, index_hlist) {
+ 			if (idx < s_idx)
+@@ -1861,7 +1863,7 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
+ 		idx = 0;
+ 		head = &net->dev_index_head[h];
+ 		rcu_read_lock();
+-		cb->seq = atomic_read(&net->ipv4.dev_addr_genid) ^
++		cb->seq = atomic_read_unchecked(&net->ipv4.dev_addr_genid) ^
+ 			  net->dev_base_seq;
+ 		hlist_for_each_entry_rcu(dev, head, index_hlist) {
+ 			if (idx < s_idx)
+@@ -2096,7 +2098,7 @@ static int ipv4_doint_and_flush(struct ctl_table *ctl, int write,
+ #define DEVINET_SYSCTL_FLUSHING_ENTRY(attr, name) \
+ 	DEVINET_SYSCTL_COMPLEX_ENTRY(attr, name, ipv4_doint_and_flush)
+ 
+-static struct devinet_sysctl_table {
++static const struct devinet_sysctl_table {
+ 	struct ctl_table_header *sysctl_header;
+ 	struct ctl_table devinet_vars[__IPV4_DEVCONF_MAX];
+ } devinet_sysctl = {
+@@ -2218,7 +2220,7 @@ static __net_init int devinet_init_net(struct net *net)
+ 	int err;
+ 	struct ipv4_devconf *all, *dflt;
+ #ifdef CONFIG_SYSCTL
+-	struct ctl_table *tbl = ctl_forward_entry;
++	ctl_table_no_const *tbl = NULL;
+ 	struct ctl_table_header *forw_hdr;
+ #endif
+ 
+@@ -2236,7 +2238,7 @@ static __net_init int devinet_init_net(struct net *net)
+ 			goto err_alloc_dflt;
+ 
+ #ifdef CONFIG_SYSCTL
+-		tbl = kmemdup(tbl, sizeof(ctl_forward_entry), GFP_KERNEL);
++		tbl = kmemdup(ctl_forward_entry, sizeof(ctl_forward_entry), GFP_KERNEL);
+ 		if (tbl == NULL)
+ 			goto err_alloc_ctl;
+ 
+@@ -2256,7 +2258,10 @@ static __net_init int devinet_init_net(struct net *net)
+ 		goto err_reg_dflt;
+ 
+ 	err = -ENOMEM;
+-	forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
++	if (!net_eq(net, &init_net))
++		forw_hdr = register_net_sysctl(net, "net/ipv4", tbl);
++	else
++		forw_hdr = register_net_sysctl(net, "net/ipv4", ctl_forward_entry);
+ 	if (forw_hdr == NULL)
+ 		goto err_reg_ctl;
+ 	net->ipv4.forw_hdr = forw_hdr;
+@@ -2272,8 +2277,7 @@ err_reg_ctl:
+ err_reg_dflt:
+ 	__devinet_sysctl_unregister(all);
+ err_reg_all:
+-	if (tbl != ctl_forward_entry)
+-		kfree(tbl);
++	kfree(tbl);
+ err_alloc_ctl:
+ #endif
+ 	if (dflt != &ipv4_devconf_dflt)
+diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
+index c7539e2..b455e51 100644
+--- a/net/ipv4/fib_frontend.c
++++ b/net/ipv4/fib_frontend.c
+@@ -1015,12 +1015,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
+ #ifdef CONFIG_IP_ROUTE_MULTIPATH
+ 		fib_sync_up(dev);
+ #endif
+-		atomic_inc(&net->ipv4.dev_addr_genid);
++		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
+ 		rt_cache_flush(dev_net(dev));
+ 		break;
+ 	case NETDEV_DOWN:
+ 		fib_del_ifaddr(ifa, NULL);
+-		atomic_inc(&net->ipv4.dev_addr_genid);
++		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
+ 		if (ifa->ifa_dev->ifa_list == NULL) {
+ 			/* Last address was deleted from this interface.
+ 			 * Disable IP.
+@@ -1058,7 +1058,7 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo
+ #ifdef CONFIG_IP_ROUTE_MULTIPATH
+ 		fib_sync_up(dev);
+ #endif
+-		atomic_inc(&net->ipv4.dev_addr_genid);
++		atomic_inc_unchecked(&net->ipv4.dev_addr_genid);
+ 		rt_cache_flush(net);
+ 		break;
+ 	case NETDEV_DOWN:
+diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
+index 017fa5e..d61ebac 100644
+--- a/net/ipv4/fib_semantics.c
++++ b/net/ipv4/fib_semantics.c
+@@ -767,7 +767,7 @@ __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh)
+ 	nh->nh_saddr = inet_select_addr(nh->nh_dev,
+ 					nh->nh_gw,
+ 					nh->nh_parent->fib_scope);
+-	nh->nh_saddr_genid = atomic_read(&net->ipv4.dev_addr_genid);
++	nh->nh_saddr_genid = atomic_read_unchecked(&net->ipv4.dev_addr_genid);
+ 
+ 	return nh->nh_saddr;
+ }
+diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
+index 278836f..482db7b 100644
+--- a/net/ipv4/gre_offload.c
++++ b/net/ipv4/gre_offload.c
+@@ -56,13 +56,13 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
+ 
+ 	csum = !!(greh->flags & GRE_CSUM);
+ 
+-	if (unlikely(!pskb_may_pull(skb, ghl)))
+-		goto out;
+-
+ 	/* setup inner skb. */
+ 	skb->protocol = greh->protocol;
+ 	skb->encapsulation = 0;
+ 
++	if (unlikely(!pskb_may_pull(skb, ghl)))
++		goto out;
++
+ 	__skb_pull(skb, ghl);
+ 	skb_reset_mac_header(skb);
+ 	skb_set_network_header(skb, skb_inner_network_offset(skb));
+diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
+index 0d1e2cb..4501a2c 100644
+--- a/net/ipv4/inet_connection_sock.c
++++ b/net/ipv4/inet_connection_sock.c
+@@ -29,7 +29,7 @@ const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n";
+ EXPORT_SYMBOL(inet_csk_timer_bug_msg);
+ #endif
+ 
+-unsigned long *sysctl_local_reserved_ports;
++unsigned long sysctl_local_reserved_ports[65536 / 8 / sizeof(unsigned long)];
+ EXPORT_SYMBOL(sysctl_local_reserved_ports);
+ 
+ void inet_get_local_port_range(struct net *net, int *low, int *high)
+diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
+index 8b9cf27..9c17cab 100644
+--- a/net/ipv4/inet_hashtables.c
++++ b/net/ipv4/inet_hashtables.c
+@@ -18,6 +18,7 @@
+ #include <linux/sched.h>
+ #include <linux/slab.h>
+ #include <linux/wait.h>
++#include <linux/security.h>
+ 
+ #include <net/inet_connection_sock.h>
+ #include <net/inet_hashtables.h>
+@@ -49,6 +50,8 @@ static unsigned int inet_sk_ehashfn(const struct sock *sk)
+ 	return inet_ehashfn(net, laddr, lport, faddr, fport);
+ }
+ 
++extern void gr_update_task_in_ip_table(const struct inet_sock *inet);
++
+ /*
+  * Allocate and initialize a new local port bind bucket.
+  * The bindhash mutex for snum's hash chain must be held here.
+@@ -554,6 +557,8 @@ ok:
+ 			twrefcnt += inet_twsk_bind_unhash(tw, hinfo);
+ 		spin_unlock(&head->lock);
+ 
++		gr_update_task_in_ip_table(inet_sk(sk));
++
+ 		if (tw) {
+ 			inet_twsk_deschedule(tw, death_row);
+ 			while (twrefcnt) {
+diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
+index bf2cb4a..d83ba8a 100644
+--- a/net/ipv4/inetpeer.c
++++ b/net/ipv4/inetpeer.c
+@@ -482,7 +482,7 @@ relookup:
+ 	if (p) {
+ 		p->daddr = *daddr;
+ 		atomic_set(&p->refcnt, 1);
+-		atomic_set(&p->rid, 0);
++		atomic_set_unchecked(&p->rid, 0);
+ 		p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
+ 		p->rate_tokens = 0;
+ 		/* 60*HZ is arbitrary, but chosen enough high so that the first
+diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
+index 57075c4..bf162142 100644
+--- a/net/ipv4/ip_forward.c
++++ b/net/ipv4/ip_forward.c
+@@ -82,7 +82,7 @@ static int ip_forward_finish_gso(struct sk_buff *skb)
+ 
+ 	features = netif_skb_dev_features(skb, dst->dev);
+ 	segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK);
+-	if (IS_ERR(segs)) {
++	if (IS_ERR_OR_NULL(segs)) {
+ 		kfree_skb(skb);
+ 		return -ENOMEM;
+ 	}
+diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
+index 9ff497d..877a388 100644
+--- a/net/ipv4/ip_fragment.c
++++ b/net/ipv4/ip_fragment.c
+@@ -283,7 +283,7 @@ static inline int ip_frag_too_far(struct ipq *qp)
+ 		return 0;
+ 
+ 	start = qp->rid;
+-	end = atomic_inc_return(&peer->rid);
++	end = atomic_inc_return_unchecked(&peer->rid);
+ 	qp->rid = end;
+ 
+ 	rc = qp->q.fragments && (end - start) > max;
+@@ -763,12 +763,11 @@ static struct ctl_table ip4_frags_ctl_table[] = {
+ 
+ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table = NULL;
+ 	struct ctl_table_header *hdr;
+ 
+-	table = ip4_frags_ns_ctl_table;
+ 	if (!net_eq(net, &init_net)) {
+-		table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
++		table = kmemdup(ip4_frags_ns_ctl_table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
+ 		if (table == NULL)
+ 			goto err_alloc;
+ 
+@@ -779,9 +778,10 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
+ 		/* Don't export sysctls to unprivileged users */
+ 		if (net->user_ns != &init_user_ns)
+ 			table[0].procname = NULL;
+-	}
++		hdr = register_net_sysctl(net, "net/ipv4", table);
++	} else
++		hdr = register_net_sysctl(net, "net/ipv4", ip4_frags_ns_ctl_table);
+ 
+-	hdr = register_net_sysctl(net, "net/ipv4", table);
+ 	if (hdr == NULL)
+ 		goto err_reg;
+ 
+@@ -789,8 +789,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
+ 	return 0;
+ 
+ err_reg:
+-	if (!net_eq(net, &init_net))
+-		kfree(table);
++	kfree(table);
+ err_alloc:
+ 	return -ENOMEM;
+ }
+diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
+index b40b90d..9e7ce17 100644
+--- a/net/ipv4/ip_gre.c
++++ b/net/ipv4/ip_gre.c
+@@ -115,7 +115,7 @@ static bool log_ecn_error = true;
+ module_param(log_ecn_error, bool, 0644);
+ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
+ 
+-static struct rtnl_link_ops ipgre_link_ops __read_mostly;
++static struct rtnl_link_ops ipgre_link_ops;
+ static int ipgre_tunnel_init(struct net_device *dev);
+ 
+ static int ipgre_net_id __read_mostly;
+@@ -733,7 +733,7 @@ static const struct nla_policy ipgre_policy[IFLA_GRE_MAX + 1] = {
+ 	[IFLA_GRE_PMTUDISC]	= { .type = NLA_U8 },
+ };
+ 
+-static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
++static struct rtnl_link_ops ipgre_link_ops = {
+ 	.kind		= "gre",
+ 	.maxtype	= IFLA_GRE_MAX,
+ 	.policy		= ipgre_policy,
+@@ -747,7 +747,7 @@ static struct rtnl_link_ops ipgre_link_ops __read_mostly = {
+ 	.fill_info	= ipgre_fill_info,
+ };
+ 
+-static struct rtnl_link_ops ipgre_tap_ops __read_mostly = {
++static struct rtnl_link_ops ipgre_tap_ops = {
+ 	.kind		= "gretap",
+ 	.maxtype	= IFLA_GRE_MAX,
+ 	.policy		= ipgre_policy,
+diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
+index 3d4da2c..40f9c29 100644
+--- a/net/ipv4/ip_input.c
++++ b/net/ipv4/ip_input.c
+@@ -147,6 +147,10 @@
+ #include <linux/mroute.h>
+ #include <linux/netlink.h>
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_enable_blackhole;
++#endif
++
+ /*
+  *	Process Router Attention IP option (RFC 2113)
+  */
+@@ -223,6 +227,9 @@ static int ip_local_deliver_finish(struct sk_buff *skb)
+ 			if (!raw) {
+ 				if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) {
+ 					IP_INC_STATS_BH(net, IPSTATS_MIB_INUNKNOWNPROTOS);
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++					if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
++#endif
+ 					icmp_send(skb, ICMP_DEST_UNREACH,
+ 						  ICMP_PROT_UNREACH, 0);
+ 				}
+diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
+index 135045e..f0dcc0d 100644
+--- a/net/ipv4/ip_sockglue.c
++++ b/net/ipv4/ip_sockglue.c
+@@ -1167,7 +1167,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
+ 		len = min_t(unsigned int, len, opt->optlen);
+ 		if (put_user(len, optlen))
+ 			return -EFAULT;
+-		if (copy_to_user(optval, opt->__data, len))
++		if ((len > (sizeof(optbuf) - sizeof(struct ip_options))) ||
++		    copy_to_user(optval, opt->__data, len))
+ 			return -EFAULT;
+ 		return 0;
+ 	}
+@@ -1298,7 +1299,7 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
+ 		if (sk->sk_type != SOCK_STREAM)
+ 			return -ENOPROTOOPT;
+ 
+-		msg.msg_control = optval;
++		msg.msg_control = (void __force_kernel *)optval;
+ 		msg.msg_controllen = len;
+ 		msg.msg_flags = flags;
+ 
+diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
+index b0a9cb4..8e8f8d2 100644
+--- a/net/ipv4/ip_vti.c
++++ b/net/ipv4/ip_vti.c
+@@ -44,7 +44,7 @@
+ #include <net/net_namespace.h>
+ #include <net/netns/generic.h>
+ 
+-static struct rtnl_link_ops vti_link_ops __read_mostly;
++static struct rtnl_link_ops vti_link_ops;
+ 
+ static int vti_net_id __read_mostly;
+ static int vti_tunnel_init(struct net_device *dev);
+@@ -360,7 +360,7 @@ static const struct nla_policy vti_policy[IFLA_VTI_MAX + 1] = {
+ 	[IFLA_VTI_REMOTE]	= { .len = FIELD_SIZEOF(struct iphdr, daddr) },
+ };
+ 
+-static struct rtnl_link_ops vti_link_ops __read_mostly = {
++static struct rtnl_link_ops vti_link_ops = {
+ 	.kind		= "vti",
+ 	.maxtype	= IFLA_VTI_MAX,
+ 	.policy		= vti_policy,
+diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
+index b3e86ea..18ce98c 100644
+--- a/net/ipv4/ipconfig.c
++++ b/net/ipv4/ipconfig.c
+@@ -334,7 +334,7 @@ static int __init ic_devinet_ioctl(unsigned int cmd, struct ifreq *arg)
+ 
+ 	mm_segment_t oldfs = get_fs();
+ 	set_fs(get_ds());
+-	res = devinet_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
++	res = devinet_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
+ 	set_fs(oldfs);
+ 	return res;
+ }
+@@ -345,7 +345,7 @@ static int __init ic_dev_ioctl(unsigned int cmd, struct ifreq *arg)
+ 
+ 	mm_segment_t oldfs = get_fs();
+ 	set_fs(get_ds());
+-	res = dev_ioctl(&init_net, cmd, (struct ifreq __user *) arg);
++	res = dev_ioctl(&init_net, cmd, (struct ifreq __force_user *) arg);
+ 	set_fs(oldfs);
+ 	return res;
+ }
+@@ -356,7 +356,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
+ 
+ 	mm_segment_t oldfs = get_fs();
+ 	set_fs(get_ds());
+-	res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
++	res = ip_rt_ioctl(&init_net, cmd, (void __force_user *) arg);
+ 	set_fs(oldfs);
+ 	return res;
+ }
+diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
+index 62eaa00..29b2dc2 100644
+--- a/net/ipv4/ipip.c
++++ b/net/ipv4/ipip.c
+@@ -124,7 +124,7 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
+ static int ipip_net_id __read_mostly;
+ 
+ static int ipip_tunnel_init(struct net_device *dev);
+-static struct rtnl_link_ops ipip_link_ops __read_mostly;
++static struct rtnl_link_ops ipip_link_ops;
+ 
+ static int ipip_err(struct sk_buff *skb, u32 info)
+ {
+@@ -409,7 +409,7 @@ static const struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
+ 	[IFLA_IPTUN_PMTUDISC]		= { .type = NLA_U8 },
+ };
+ 
+-static struct rtnl_link_ops ipip_link_ops __read_mostly = {
++static struct rtnl_link_ops ipip_link_ops = {
+ 	.kind		= "ipip",
+ 	.maxtype	= IFLA_IPTUN_MAX,
+ 	.policy		= ipip_policy,
+diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
+index f95b6f9..2ee2097 100644
+--- a/net/ipv4/netfilter/arp_tables.c
++++ b/net/ipv4/netfilter/arp_tables.c
+@@ -885,14 +885,14 @@ static int compat_table_info(const struct xt_table_info *info,
+ #endif
+ 
+ static int get_info(struct net *net, void __user *user,
+-                    const int *len, int compat)
++                    int len, int compat)
+ {
+ 	char name[XT_TABLE_MAXNAMELEN];
+ 	struct xt_table *t;
+ 	int ret;
+ 
+-	if (*len != sizeof(struct arpt_getinfo)) {
+-		duprintf("length %u != %Zu\n", *len,
++	if (len != sizeof(struct arpt_getinfo)) {
++		duprintf("length %u != %Zu\n", len,
+ 			 sizeof(struct arpt_getinfo));
+ 		return -EINVAL;
+ 	}
+@@ -929,7 +929,7 @@ static int get_info(struct net *net, void __user *user,
+ 		info.size = private->size;
+ 		strcpy(info.name, name);
+ 
+-		if (copy_to_user(user, &info, *len) != 0)
++		if (copy_to_user(user, &info, len) != 0)
+ 			ret = -EFAULT;
+ 		else
+ 			ret = 0;
+@@ -1690,7 +1690,7 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
+ 
+ 	switch (cmd) {
+ 	case ARPT_SO_GET_INFO:
+-		ret = get_info(sock_net(sk), user, len, 1);
++		ret = get_info(sock_net(sk), user, *len, 1);
+ 		break;
+ 	case ARPT_SO_GET_ENTRIES:
+ 		ret = compat_get_entries(sock_net(sk), user, len);
+@@ -1735,7 +1735,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
+ 
+ 	switch (cmd) {
+ 	case ARPT_SO_GET_INFO:
+-		ret = get_info(sock_net(sk), user, len, 0);
++		ret = get_info(sock_net(sk), user, *len, 0);
+ 		break;
+ 
+ 	case ARPT_SO_GET_ENTRIES:
+diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
+index 99e810f..3711b81 100644
+--- a/net/ipv4/netfilter/ip_tables.c
++++ b/net/ipv4/netfilter/ip_tables.c
+@@ -1073,14 +1073,14 @@ static int compat_table_info(const struct xt_table_info *info,
+ #endif
+ 
+ static int get_info(struct net *net, void __user *user,
+-                    const int *len, int compat)
++                    int len, int compat)
+ {
+ 	char name[XT_TABLE_MAXNAMELEN];
+ 	struct xt_table *t;
+ 	int ret;
+ 
+-	if (*len != sizeof(struct ipt_getinfo)) {
+-		duprintf("length %u != %zu\n", *len,
++	if (len != sizeof(struct ipt_getinfo)) {
++		duprintf("length %u != %zu\n", len,
+ 			 sizeof(struct ipt_getinfo));
+ 		return -EINVAL;
+ 	}
+@@ -1117,7 +1117,7 @@ static int get_info(struct net *net, void __user *user,
+ 		info.size = private->size;
+ 		strcpy(info.name, name);
+ 
+-		if (copy_to_user(user, &info, *len) != 0)
++		if (copy_to_user(user, &info, len) != 0)
+ 			ret = -EFAULT;
+ 		else
+ 			ret = 0;
+@@ -1973,7 +1973,7 @@ compat_do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
+ 
+ 	switch (cmd) {
+ 	case IPT_SO_GET_INFO:
+-		ret = get_info(sock_net(sk), user, len, 1);
++		ret = get_info(sock_net(sk), user, *len, 1);
+ 		break;
+ 	case IPT_SO_GET_ENTRIES:
+ 		ret = compat_get_entries(sock_net(sk), user, len);
+@@ -2020,7 +2020,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
+ 
+ 	switch (cmd) {
+ 	case IPT_SO_GET_INFO:
+-		ret = get_info(sock_net(sk), user, len, 0);
++		ret = get_info(sock_net(sk), user, *len, 0);
+ 		break;
+ 
+ 	case IPT_SO_GET_ENTRIES:
+diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
+index 2510c02..cfb34fa 100644
+--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
++++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
+@@ -720,7 +720,7 @@ static int clusterip_net_init(struct net *net)
+ 	spin_lock_init(&cn->lock);
+ 
+ #ifdef CONFIG_PROC_FS
+-	cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
++	cn->procdir = proc_mkdir_restrict("ipt_CLUSTERIP", net->proc_net);
+ 	if (!cn->procdir) {
+ 		pr_err("Unable to proc dir entry\n");
+ 		return -ENOMEM;
+diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
+index 1e2e9bf..53e0bff 100644
+--- a/net/ipv4/ping.c
++++ b/net/ipv4/ping.c
+@@ -59,7 +59,7 @@ struct ping_table {
+ };
+ 
+ static struct ping_table ping_table;
+-struct pingv6_ops pingv6_ops;
++struct pingv6_ops *pingv6_ops;
+ EXPORT_SYMBOL_GPL(pingv6_ops);
+ 
+ static u16 ping_port_rover;
+@@ -260,10 +260,9 @@ int ping_init_sock(struct sock *sk)
+ 	kgid_t low, high;
+ 	int ret = 0;
+ 
+-#if IS_ENABLED(CONFIG_IPV6)
+ 	if (sk->sk_family == AF_INET6)
+-		inet6_sk(sk)->ipv6only = 1;
+-#endif
++		sk->sk_ipv6only = 1;
++
+ 	inet_get_ping_group_range_net(net, &low, &high);
+ 	if (gid_lte(low, group) && gid_lte(group, high))
+ 		return 0;
+@@ -360,7 +359,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
+ 				return -ENODEV;
+ 			}
+ 		}
+-		has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
++		has_addr = pingv6_ops->ipv6_chk_addr(net, &addr->sin6_addr, dev,
+ 						    scoped);
+ 		rcu_read_unlock();
+ 
+@@ -568,7 +567,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
+ 		}
+ #if IS_ENABLED(CONFIG_IPV6)
+ 	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+-		harderr = pingv6_ops.icmpv6_err_convert(type, code, &err);
++		harderr = pingv6_ops->icmpv6_err_convert(type, code, &err);
+ #endif
+ 	}
+ 
+@@ -586,7 +585,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
+ 				      info, (u8 *)icmph);
+ #if IS_ENABLED(CONFIG_IPV6)
+ 		} else if (family == AF_INET6) {
+-			pingv6_ops.ipv6_icmp_error(sk, skb, err, 0,
++			pingv6_ops->ipv6_icmp_error(sk, skb, err, 0,
+ 						   info, (u8 *)icmph);
+ #endif
+ 		}
+@@ -870,7 +869,7 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ 			return ip_recv_error(sk, msg, len, addr_len);
+ #if IS_ENABLED(CONFIG_IPV6)
+ 		} else if (family == AF_INET6) {
+-			return pingv6_ops.ipv6_recv_error(sk, msg, len,
++			return pingv6_ops->ipv6_recv_error(sk, msg, len,
+ 							  addr_len);
+ #endif
+ 		}
+@@ -928,10 +927,10 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ 		}
+ 
+ 		if (inet6_sk(sk)->rxopt.all)
+-			pingv6_ops.ip6_datagram_recv_common_ctl(sk, msg, skb);
++			pingv6_ops->ip6_datagram_recv_common_ctl(sk, msg, skb);
+ 		if (skb->protocol == htons(ETH_P_IPV6) &&
+ 		    inet6_sk(sk)->rxopt.all)
+-			pingv6_ops.ip6_datagram_recv_specific_ctl(sk, msg, skb);
++			pingv6_ops->ip6_datagram_recv_specific_ctl(sk, msg, skb);
+ 		else if (skb->protocol == htons(ETH_P_IP) && isk->cmsg_flags)
+ 			ip_cmsg_recv(msg, skb);
+ #endif
+@@ -1126,7 +1125,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
+ 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
+ 		0, sock_i_ino(sp),
+ 		atomic_read(&sp->sk_refcnt), sp,
+-		atomic_read(&sp->sk_drops));
++		atomic_read_unchecked(&sp->sk_drops));
+ }
+ 
+ static int ping_v4_seq_show(struct seq_file *seq, void *v)
+diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
+index 11c8d81..d67116b 100644
+--- a/net/ipv4/raw.c
++++ b/net/ipv4/raw.c
+@@ -311,7 +311,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ int raw_rcv(struct sock *sk, struct sk_buff *skb)
+ {
+ 	if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb)) {
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		kfree_skb(skb);
+ 		return NET_RX_DROP;
+ 	}
+@@ -748,16 +748,20 @@ static int raw_init(struct sock *sk)
+ 
+ static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen)
+ {
++	struct icmp_filter filter;
++
+ 	if (optlen > sizeof(struct icmp_filter))
+ 		optlen = sizeof(struct icmp_filter);
+-	if (copy_from_user(&raw_sk(sk)->filter, optval, optlen))
++	if (copy_from_user(&filter, optval, optlen))
+ 		return -EFAULT;
++	raw_sk(sk)->filter = filter;
+ 	return 0;
+ }
+ 
+ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *optlen)
+ {
+ 	int len, ret = -EFAULT;
++	struct icmp_filter filter;
+ 
+ 	if (get_user(len, optlen))
+ 		goto out;
+@@ -767,8 +771,8 @@ static int raw_geticmpfilter(struct sock *sk, char __user *optval, int __user *o
+ 	if (len > sizeof(struct icmp_filter))
+ 		len = sizeof(struct icmp_filter);
+ 	ret = -EFAULT;
+-	if (put_user(len, optlen) ||
+-	    copy_to_user(optval, &raw_sk(sk)->filter, len))
++	filter = raw_sk(sk)->filter;
++	if (put_user(len, optlen) || len > sizeof filter || copy_to_user(optval, &filter, len))
+ 		goto out;
+ 	ret = 0;
+ out:	return ret;
+@@ -997,7 +1001,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
+ 		0, 0L, 0,
+ 		from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
+ 		0, sock_i_ino(sp),
+-		atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
++		atomic_read(&sp->sk_refcnt), sp, atomic_read_unchecked(&sp->sk_drops));
+ }
+ 
+ static int raw_seq_show(struct seq_file *seq, void *v)
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index 625615c..b88eefd 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -234,7 +234,7 @@ static const struct seq_operations rt_cache_seq_ops = {
+ 
+ static int rt_cache_seq_open(struct inode *inode, struct file *file)
+ {
+-	return seq_open(file, &rt_cache_seq_ops);
++	return seq_open_restrict(file, &rt_cache_seq_ops);
+ }
+ 
+ static const struct file_operations rt_cache_seq_fops = {
+@@ -325,7 +325,7 @@ static const struct seq_operations rt_cpu_seq_ops = {
+ 
+ static int rt_cpu_seq_open(struct inode *inode, struct file *file)
+ {
+-	return seq_open(file, &rt_cpu_seq_ops);
++	return seq_open_restrict(file, &rt_cpu_seq_ops);
+ }
+ 
+ static const struct file_operations rt_cpu_seq_fops = {
+@@ -363,7 +363,7 @@ static int rt_acct_proc_show(struct seq_file *m, void *v)
+ 
+ static int rt_acct_proc_open(struct inode *inode, struct file *file)
+ {
+-	return single_open(file, rt_acct_proc_show, NULL);
++	return single_open_restrict(file, rt_acct_proc_show, NULL);
+ }
+ 
+ static const struct file_operations rt_acct_proc_fops = {
+@@ -465,11 +465,11 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
+ 
+ #define IP_IDENTS_SZ 2048u
+ struct ip_ident_bucket {
+-	atomic_t	id;
++	atomic_unchecked_t	id;
+ 	u32		stamp32;
+ };
+ 
+-static struct ip_ident_bucket *ip_idents __read_mostly;
++static struct ip_ident_bucket ip_idents[IP_IDENTS_SZ] __read_mostly;
+ 
+ /* In order to protect privacy, we add a perturbation to identifiers
+  * if one generator is seldom used. This makes hard for an attacker
+@@ -485,7 +485,7 @@ u32 ip_idents_reserve(u32 hash, int segs)
+ 	if (old != now && cmpxchg(&bucket->stamp32, old, now) == old)
+ 		delta = prandom_u32_max(now - old);
+ 
+-	return atomic_add_return(segs + delta, &bucket->id) - segs;
++	return atomic_add_return_unchecked(segs + delta, &bucket->id) - segs;
+ }
+ EXPORT_SYMBOL(ip_idents_reserve);
+ 
+@@ -2636,34 +2636,34 @@ static struct ctl_table ipv4_route_flush_table[] = {
+ 		.maxlen		= sizeof(int),
+ 		.mode		= 0200,
+ 		.proc_handler	= ipv4_sysctl_rtcache_flush,
++		.extra1		= &init_net,
+ 	},
+ 	{ },
+ };
+ 
+ static __net_init int sysctl_route_net_init(struct net *net)
+ {
+-	struct ctl_table *tbl;
++	ctl_table_no_const *tbl = NULL;
+ 
+-	tbl = ipv4_route_flush_table;
+ 	if (!net_eq(net, &init_net)) {
+-		tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL);
++		tbl = kmemdup(ipv4_route_flush_table, sizeof(ipv4_route_flush_table), GFP_KERNEL);
+ 		if (tbl == NULL)
+ 			goto err_dup;
+ 
+ 		/* Don't export sysctls to unprivileged users */
+ 		if (net->user_ns != &init_user_ns)
+ 			tbl[0].procname = NULL;
+-	}
+-	tbl[0].extra1 = net;
++		tbl[0].extra1 = net;
++		net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
++	} else
++		net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", ipv4_route_flush_table);
+ 
+-	net->ipv4.route_hdr = register_net_sysctl(net, "net/ipv4/route", tbl);
+ 	if (net->ipv4.route_hdr == NULL)
+ 		goto err_reg;
+ 	return 0;
+ 
+ err_reg:
+-	if (tbl != ipv4_route_flush_table)
+-		kfree(tbl);
++	kfree(tbl);
+ err_dup:
+ 	return -ENOMEM;
+ }
+@@ -2686,8 +2686,8 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
+ 
+ static __net_init int rt_genid_init(struct net *net)
+ {
+-	atomic_set(&net->ipv4.rt_genid, 0);
+-	atomic_set(&net->fnhe_genid, 0);
++	atomic_set_unchecked(&net->ipv4.rt_genid, 0);
++	atomic_set_unchecked(&net->fnhe_genid, 0);
+ 	get_random_bytes(&net->ipv4.dev_addr_genid,
+ 			 sizeof(net->ipv4.dev_addr_genid));
+ 	return 0;
+@@ -2730,11 +2730,7 @@ int __init ip_rt_init(void)
+ {
+ 	int rc = 0;
+ 
+-	ip_idents = kmalloc(IP_IDENTS_SZ * sizeof(*ip_idents), GFP_KERNEL);
+-	if (!ip_idents)
+-		panic("IP: failed to allocate ip_idents\n");
+-
+-	prandom_bytes(ip_idents, IP_IDENTS_SZ * sizeof(*ip_idents));
++	prandom_bytes(ip_idents, sizeof(ip_idents));
+ 
+ #ifdef CONFIG_IP_ROUTE_CLASSID
+ 	ip_rt_acct = __alloc_percpu(256 * sizeof(struct ip_rt_acct), __alignof__(struct ip_rt_acct));
+diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
+index 44eba05..b36864b 100644
+--- a/net/ipv4/sysctl_net_ipv4.c
++++ b/net/ipv4/sysctl_net_ipv4.c
+@@ -60,7 +60,7 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
+ 		container_of(table->data, struct net, ipv4.sysctl_local_ports.range);
+ 	int ret;
+ 	int range[2];
+-	struct ctl_table tmp = {
++	ctl_table_no_const tmp = {
+ 		.data = &range,
+ 		.maxlen = sizeof(range),
+ 		.mode = table->mode,
+@@ -118,7 +118,7 @@ static int ipv4_ping_group_range(struct ctl_table *table, int write,
+ 	int ret;
+ 	gid_t urange[2];
+ 	kgid_t low, high;
+-	struct ctl_table tmp = {
++	ctl_table_no_const tmp = {
+ 		.data = &urange,
+ 		.maxlen = sizeof(urange),
+ 		.mode = table->mode,
+@@ -149,7 +149,7 @@ static int proc_tcp_congestion_control(struct ctl_table *ctl, int write,
+ 				       void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+ 	char val[TCP_CA_NAME_MAX];
+-	struct ctl_table tbl = {
++	ctl_table_no_const tbl = {
+ 		.data = val,
+ 		.maxlen = TCP_CA_NAME_MAX,
+ 	};
+@@ -168,7 +168,7 @@ static int proc_tcp_available_congestion_control(struct ctl_table *ctl,
+ 						 void __user *buffer, size_t *lenp,
+ 						 loff_t *ppos)
+ {
+-	struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
++	ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX, };
+ 	int ret;
+ 
+ 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
+@@ -185,7 +185,7 @@ static int proc_allowed_congestion_control(struct ctl_table *ctl,
+ 					   void __user *buffer, size_t *lenp,
+ 					   loff_t *ppos)
+ {
+-	struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
++	ctl_table_no_const tbl = { .maxlen = TCP_CA_BUF_MAX };
+ 	int ret;
+ 
+ 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
+@@ -204,7 +204,7 @@ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
+ 				 void __user *buffer, size_t *lenp,
+ 				 loff_t *ppos)
+ {
+-	struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
++	ctl_table_no_const tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
+ 	struct tcp_fastopen_context *ctxt;
+ 	int ret;
+ 	u32  user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
+@@ -438,7 +438,7 @@ static struct ctl_table ipv4_table[] = {
+ 	},
+ 	{
+ 		.procname	= "ip_local_reserved_ports",
+-		.data		= NULL, /* initialized in sysctl_ipv4_init */
++		.data		= sysctl_local_reserved_ports,
+ 		.maxlen		= 65536,
+ 		.mode		= 0644,
+ 		.proc_handler	= proc_do_large_bitmap,
+@@ -843,13 +843,12 @@ static struct ctl_table ipv4_net_table[] = {
+ 
+ static __net_init int ipv4_sysctl_init_net(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table = NULL;
+ 
+-	table = ipv4_net_table;
+ 	if (!net_eq(net, &init_net)) {
+ 		int i;
+ 
+-		table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
++		table = kmemdup(ipv4_net_table, sizeof(ipv4_net_table), GFP_KERNEL);
+ 		if (table == NULL)
+ 			goto err_alloc;
+ 
+@@ -872,15 +871,17 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
+ 	net->ipv4.sysctl_local_ports.range[0] =  32768;
+ 	net->ipv4.sysctl_local_ports.range[1] =  61000;
+ 
+-	net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
++	if (!net_eq(net, &init_net))
++		net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
++	else
++		net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", ipv4_net_table);
+ 	if (net->ipv4.ipv4_hdr == NULL)
+ 		goto err_reg;
+ 
+ 	return 0;
+ 
+ err_reg:
+-	if (!net_eq(net, &init_net))
+-		kfree(table);
++	kfree(table);
+ err_alloc:
+ 	return -ENOMEM;
+ }
+@@ -902,16 +903,6 @@ static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
+ static __init int sysctl_ipv4_init(void)
+ {
+ 	struct ctl_table_header *hdr;
+-	struct ctl_table *i;
+-
+-	for (i = ipv4_table; i->procname; i++) {
+-		if (strcmp(i->procname, "ip_local_reserved_ports") == 0) {
+-			i->data = sysctl_local_reserved_ports;
+-			break;
+-		}
+-	}
+-	if (!i->procname)
+-		return -EINVAL;
+ 
+ 	hdr = register_net_sysctl(&init_net, "net/ipv4", ipv4_table);
+ 	if (hdr == NULL)
+diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
+index 9fbd69e..285e21e 100644
+--- a/net/ipv4/tcp_input.c
++++ b/net/ipv4/tcp_input.c
+@@ -761,7 +761,7 @@ static void tcp_update_pacing_rate(struct sock *sk)
+ 	 * without any lock. We want to make sure compiler wont store
+ 	 * intermediate values in this location.
+ 	 */
+-	ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
++	ACCESS_ONCE_RW(sk->sk_pacing_rate) = min_t(u64, rate,
+ 						sk->sk_max_pacing_rate);
+ }
+ 
+@@ -4483,7 +4483,7 @@ static struct sk_buff *tcp_collapse_one(struct sock *sk, struct sk_buff *skb,
+  * simplifies code)
+  */
+ static void
+-tcp_collapse(struct sock *sk, struct sk_buff_head *list,
++__intentional_overflow(5,6) tcp_collapse(struct sock *sk, struct sk_buff_head *list,
+ 	     struct sk_buff *head, struct sk_buff *tail,
+ 	     u32 start, u32 end)
+ {
+@@ -5560,6 +5560,7 @@ discard:
+ 	    tcp_paws_reject(&tp->rx_opt, 0))
+ 		goto discard_and_undo;
+ 
++#ifndef CONFIG_GRKERNSEC_NO_SIMULT_CONNECT
+ 	if (th->syn) {
+ 		/* We see SYN without ACK. It is attempt of
+ 		 * simultaneous connect with crossed SYNs.
+@@ -5610,6 +5611,7 @@ discard:
+ 		goto discard;
+ #endif
+ 	}
++#endif
+ 	/* "fifth, if neither of the SYN or RST bits is set then
+ 	 * drop the segment and return."
+ 	 */
+@@ -5656,7 +5658,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
+ 			goto discard;
+ 
+ 		if (th->syn) {
+-			if (th->fin)
++			if (th->fin || th->urg || th->psh)
+ 				goto discard;
+ 			if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
+ 				return 1;
+diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
+index e2f8bd0..6c664ad 100644
+--- a/net/ipv4/tcp_ipv4.c
++++ b/net/ipv4/tcp_ipv4.c
+@@ -91,6 +91,10 @@ int sysctl_tcp_low_latency __read_mostly;
+ EXPORT_SYMBOL(sysctl_tcp_low_latency);
+ 
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_enable_blackhole;
++#endif
++
+ #ifdef CONFIG_TCP_MD5SIG
+ static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
+ 			       __be32 daddr, __be32 saddr, const struct tcphdr *th);
+@@ -1832,6 +1836,9 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
+ 	return 0;
+ 
+ reset:
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	if (!grsec_enable_blackhole)
++#endif
+ 	tcp_v4_send_reset(rsk, skb);
+ discard:
+ 	kfree_skb(skb);
+@@ -1977,12 +1984,19 @@ int tcp_v4_rcv(struct sk_buff *skb)
+ 	TCP_SKB_CB(skb)->sacked	 = 0;
+ 
+ 	sk = __inet_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
+-	if (!sk)
++	if (!sk) {
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		ret = 1;
++#endif
+ 		goto no_tcp_socket;
+-
++	}
+ process:
+-	if (sk->sk_state == TCP_TIME_WAIT)
++	if (sk->sk_state == TCP_TIME_WAIT) {
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		ret = 2;
++#endif
+ 		goto do_time_wait;
++	}
+ 
+ 	if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
+ 		NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
+@@ -2036,6 +2050,10 @@ csum_error:
+ bad_packet:
+ 		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
+ 	} else {
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		if (!grsec_enable_blackhole || (ret == 1 &&
++		    (skb->dev->flags & IFF_LOOPBACK)))
++#endif
+ 		tcp_v4_send_reset(NULL, skb);
+ 	}
+ 
+diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
+index 9128d0a..5ea9226 100644
+--- a/net/ipv4/tcp_minisocks.c
++++ b/net/ipv4/tcp_minisocks.c
+@@ -27,6 +27,10 @@
+ #include <net/inet_common.h>
+ #include <net/xfrm.h>
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_enable_blackhole;
++#endif
++
+ int sysctl_tcp_syncookies __read_mostly = 1;
+ EXPORT_SYMBOL(sysctl_tcp_syncookies);
+ 
+@@ -298,7 +302,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
+ 			tw->tw_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
+ 			tw->tw_tclass = np->tclass;
+ 			tw->tw_flowlabel = be32_to_cpu(np->flow_label & IPV6_FLOWLABEL_MASK);
+-			tw->tw_ipv6only = np->ipv6only;
++			tw->tw_ipv6only = sk->sk_ipv6only;
+ 		}
+ #endif
+ 
+@@ -709,7 +713,10 @@ embryonic_reset:
+ 		 * avoid becoming vulnerable to outside attack aiming at
+ 		 * resetting legit local connections.
+ 		 */
+-		req->rsk_ops->send_reset(sk, skb);
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		if (!grsec_enable_blackhole)
++#endif
++			req->rsk_ops->send_reset(sk, skb);
+ 	} else if (fastopen) { /* received a valid RST pkt */
+ 		reqsk_fastopen_remove(sk, req, true);
+ 		tcp_reset(sk);
+diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
+index 1f2d376..01d18c4 100644
+--- a/net/ipv4/tcp_probe.c
++++ b/net/ipv4/tcp_probe.c
+@@ -238,7 +238,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
+ 		if (cnt + width >= len)
+ 			break;
+ 
+-		if (copy_to_user(buf + cnt, tbuf, width))
++		if (width > sizeof tbuf || copy_to_user(buf + cnt, tbuf, width))
+ 			return -EFAULT;
+ 		cnt += width;
+ 	}
+diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
+index 64f0354..a81b39d 100644
+--- a/net/ipv4/tcp_timer.c
++++ b/net/ipv4/tcp_timer.c
+@@ -22,6 +22,10 @@
+ #include <linux/gfp.h>
+ #include <net/tcp.h>
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_lastack_retries;
++#endif
++
+ int sysctl_tcp_syn_retries __read_mostly = TCP_SYN_RETRIES;
+ int sysctl_tcp_synack_retries __read_mostly = TCP_SYNACK_RETRIES;
+ int sysctl_tcp_keepalive_time __read_mostly = TCP_KEEPALIVE_TIME;
+@@ -189,6 +193,13 @@ static int tcp_write_timeout(struct sock *sk)
+ 		}
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	if ((sk->sk_state == TCP_LAST_ACK) &&
++	    (grsec_lastack_retries > 0) &&
++	    (grsec_lastack_retries < retry_until))
++		retry_until = grsec_lastack_retries;
++#endif
++
+ 	if (retransmits_timed_out(sk, retry_until,
+ 				  syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
+ 		/* Has it gone just too far? */
+diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
+index 21a3a9e..4a9ef62 100644
+--- a/net/ipv4/udp.c
++++ b/net/ipv4/udp.c
+@@ -87,6 +87,7 @@
+ #include <linux/types.h>
+ #include <linux/fcntl.h>
+ #include <linux/module.h>
++#include <linux/security.h>
+ #include <linux/socket.h>
+ #include <linux/sockios.h>
+ #include <linux/igmp.h>
+@@ -114,6 +115,10 @@
+ #include <net/busy_poll.h>
+ #include "udp_impl.h"
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_enable_blackhole;
++#endif
++
+ struct udp_table udp_table __read_mostly;
+ EXPORT_SYMBOL(udp_table);
+ 
+@@ -616,6 +621,9 @@ found:
+ 	return s;
+ }
+ 
++extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb);
++extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr);
++
+ /*
+  * This routine is called by the ICMP module when it gets some
+  * sort of error condition.  If err < 0 then the socket should
+@@ -915,9 +923,18 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ 		dport = usin->sin_port;
+ 		if (dport == 0)
+ 			return -EINVAL;
++
++		err = gr_search_udp_sendmsg(sk, usin);
++		if (err)
++			return err;
+ 	} else {
+ 		if (sk->sk_state != TCP_ESTABLISHED)
+ 			return -EDESTADDRREQ;
++
++		err = gr_search_udp_sendmsg(sk, NULL);
++		if (err)
++			return err;
++
+ 		daddr = inet->inet_daddr;
+ 		dport = inet->inet_dport;
+ 		/* Open fast path for connected socket.
+@@ -1164,7 +1181,7 @@ static unsigned int first_packet_length(struct sock *sk)
+ 				 IS_UDPLITE(sk));
+ 		UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
+ 				 IS_UDPLITE(sk));
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		__skb_unlink(skb, rcvq);
+ 		__skb_queue_tail(&list_kill, skb);
+ 	}
+@@ -1244,6 +1261,10 @@ try_again:
+ 	if (!skb)
+ 		goto out;
+ 
++	err = gr_search_udp_recvmsg(sk, skb);
++	if (err)
++		goto out_free;
++
+ 	ulen = skb->len - sizeof(struct udphdr);
+ 	copied = len;
+ 	if (copied > ulen)
+@@ -1277,7 +1298,7 @@ try_again:
+ 	if (unlikely(err)) {
+ 		trace_kfree_skb(skb, udp_recvmsg);
+ 		if (!peeked) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			UDP_INC_STATS_USER(sock_net(sk),
+ 					   UDP_MIB_INERRORS, is_udplite);
+ 		}
+@@ -1565,7 +1586,7 @@ csum_error:
+ 	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
+ drop:
+ 	UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
+-	atomic_inc(&sk->sk_drops);
++	atomic_inc_unchecked(&sk->sk_drops);
+ 	kfree_skb(skb);
+ 	return -1;
+ }
+@@ -1584,7 +1605,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
+ 			skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
+ 
+ 		if (!skb1) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
+ 					 IS_UDPLITE(sk));
+ 			UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
+@@ -1785,6 +1806,9 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
+ 		goto csum_error;
+ 
+ 	UDP_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
++#endif
+ 	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+ 
+ 	/*
+@@ -2364,7 +2388,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
+ 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
+ 		0, sock_i_ino(sp),
+ 		atomic_read(&sp->sk_refcnt), sp,
+-		atomic_read(&sp->sk_drops));
++		atomic_read_unchecked(&sp->sk_drops));
+ }
+ 
+ int udp4_seq_show(struct seq_file *seq, void *v)
+diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
+index e1a6393..f634ce5 100644
+--- a/net/ipv4/xfrm4_policy.c
++++ b/net/ipv4/xfrm4_policy.c
+@@ -186,11 +186,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
+ 	fl4->flowi4_tos = iph->tos;
+ }
+ 
+-static inline int xfrm4_garbage_collect(struct dst_ops *ops)
++static int xfrm4_garbage_collect(struct dst_ops *ops)
+ {
+ 	struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops);
+ 
+-	xfrm4_policy_afinfo.garbage_collect(net);
++	xfrm_garbage_collect_deferred(net);
+ 	return (dst_entries_get_slow(ops) > ops->gc_thresh * 2);
+ }
+ 
+@@ -269,19 +269,18 @@ static struct ctl_table xfrm4_policy_table[] = {
+ 
+ static int __net_init xfrm4_net_init(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table = NULL;
+ 	struct ctl_table_header *hdr;
+ 
+-	table = xfrm4_policy_table;
+ 	if (!net_eq(net, &init_net)) {
+-		table = kmemdup(table, sizeof(xfrm4_policy_table), GFP_KERNEL);
++		table = kmemdup(xfrm4_policy_table, sizeof(xfrm4_policy_table), GFP_KERNEL);
+ 		if (!table)
+ 			goto err_alloc;
+ 
+ 		table[0].data = &net->xfrm.xfrm4_dst_ops.gc_thresh;
+-	}
+-
+-	hdr = register_net_sysctl(net, "net/ipv4", table);
++		hdr = register_net_sysctl(net, "net/ipv4", table);
++	} else
++		hdr = register_net_sysctl(net, "net/ipv4", xfrm4_policy_table);
+ 	if (!hdr)
+ 		goto err_reg;
+ 
+@@ -289,8 +288,7 @@ static int __net_init xfrm4_net_init(struct net *net)
+ 	return 0;
+ 
+ err_reg:
+-	if (!net_eq(net, &init_net))
+-		kfree(table);
++	kfree(table);
+ err_alloc:
+ 	return -ENOMEM;
+ }
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
+index 3f0ec06..230c2c5 100644
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -170,7 +170,7 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
+ 	.hop_limit		= IPV6_DEFAULT_HOPLIMIT,
+ 	.mtu6			= IPV6_MIN_MTU,
+ 	.accept_ra		= 1,
+-	.accept_redirects	= 1,
++	.accept_redirects	= 0,
+ 	.autoconf		= 1,
+ 	.force_mld_version	= 0,
+ 	.mldv1_unsolicited_report_interval = 10 * HZ,
+@@ -206,7 +206,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
+ 	.hop_limit		= IPV6_DEFAULT_HOPLIMIT,
+ 	.mtu6			= IPV6_MIN_MTU,
+ 	.accept_ra		= 1,
+-	.accept_redirects	= 1,
++	.accept_redirects	= 0,
+ 	.autoconf		= 1,
+ 	.force_mld_version	= 0,
+ 	.mldv1_unsolicited_report_interval = 10 * HZ,
+@@ -598,7 +598,7 @@ static int inet6_netconf_dump_devconf(struct sk_buff *skb,
+ 		idx = 0;
+ 		head = &net->dev_index_head[h];
+ 		rcu_read_lock();
+-		cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^
++		cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^
+ 			  net->dev_base_seq;
+ 		hlist_for_each_entry_rcu(dev, head, index_hlist) {
+ 			if (idx < s_idx)
+@@ -2390,7 +2390,7 @@ int addrconf_set_dstaddr(struct net *net, void __user *arg)
+ 		p.iph.ihl = 5;
+ 		p.iph.protocol = IPPROTO_IPV6;
+ 		p.iph.ttl = 64;
+-		ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
++		ifr.ifr_ifru.ifru_data = (void __force_user *)&p;
+ 
+ 		if (ops->ndo_do_ioctl) {
+ 			mm_segment_t oldfs = get_fs();
+@@ -3523,16 +3523,23 @@ static const struct file_operations if6_fops = {
+ 	.release	= seq_release_net,
+ };
+ 
++extern void register_ipv6_seq_ops_addr(struct seq_operations *addr);
++extern void unregister_ipv6_seq_ops_addr(void);
++
+ static int __net_init if6_proc_net_init(struct net *net)
+ {
+-	if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops))
++	register_ipv6_seq_ops_addr(&if6_seq_ops);
++	if (!proc_create("if_inet6", S_IRUGO, net->proc_net, &if6_fops)) {
++		unregister_ipv6_seq_ops_addr();
+ 		return -ENOMEM;
++	}
+ 	return 0;
+ }
+ 
+ static void __net_exit if6_proc_net_exit(struct net *net)
+ {
+ 	remove_proc_entry("if_inet6", net->proc_net);
++	unregister_ipv6_seq_ops_addr();
+ }
+ 
+ static struct pernet_operations if6_proc_net_ops = {
+@@ -4141,7 +4148,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb,
+ 	s_ip_idx = ip_idx = cb->args[2];
+ 
+ 	rcu_read_lock();
+-	cb->seq = atomic_read(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
++	cb->seq = atomic_read_unchecked(&net->ipv6.dev_addr_genid) ^ net->dev_base_seq;
+ 	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
+ 		idx = 0;
+ 		head = &net->dev_index_head[h];
+@@ -4512,6 +4519,21 @@ static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token)
+ 	return 0;
+ }
+ 
++static const struct nla_policy inet6_af_policy[IFLA_INET6_MAX + 1] = {
++	[IFLA_INET6_TOKEN]		= { .len = sizeof(struct in6_addr) },
++};
++
++static int inet6_validate_link_af(const struct net_device *dev,
++				  const struct nlattr *nla)
++{
++	struct nlattr *tb[IFLA_INET6_MAX + 1];
++
++	if (dev && !__in6_dev_get(dev))
++		return -EAFNOSUPPORT;
++
++	return nla_parse_nested(tb, IFLA_INET6_MAX, nla, inet6_af_policy);
++}
++
+ static int inet6_set_link_af(struct net_device *dev, const struct nlattr *nla)
+ {
+ 	int err = -EINVAL;
+@@ -4741,11 +4763,8 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
+ 
+ 			rt = rt6_lookup(dev_net(dev), &ifp->peer_addr, NULL,
+ 					dev->ifindex, 1);
+-			if (rt) {
+-				dst_hold(&rt->dst);
+-				if (ip6_del_rt(rt))
+-					dst_free(&rt->dst);
+-			}
++			if (rt && ip6_del_rt(rt))
++				dst_free(&rt->dst);
+ 		}
+ 		dst_hold(&ifp->rt->dst);
+ 
+@@ -4753,7 +4772,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
+ 			dst_free(&ifp->rt->dst);
+ 		break;
+ 	}
+-	atomic_inc(&net->ipv6.dev_addr_genid);
++	atomic_inc_unchecked(&net->ipv6.dev_addr_genid);
+ 	rt_genid_bump_ipv6(net);
+ }
+ 
+@@ -4774,7 +4793,7 @@ int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
+ 	int *valp = ctl->data;
+ 	int val = *valp;
+ 	loff_t pos = *ppos;
+-	struct ctl_table lctl;
++	ctl_table_no_const lctl;
+ 	int ret;
+ 
+ 	/*
+@@ -4859,7 +4878,7 @@ int addrconf_sysctl_disable(struct ctl_table *ctl, int write,
+ 	int *valp = ctl->data;
+ 	int val = *valp;
+ 	loff_t pos = *ppos;
+-	struct ctl_table lctl;
++	ctl_table_no_const lctl;
+ 	int ret;
+ 
+ 	/*
+@@ -5299,6 +5318,7 @@ static struct rtnl_af_ops inet6_ops = {
+ 	.family		  = AF_INET6,
+ 	.fill_link_af	  = inet6_fill_link_af,
+ 	.get_link_af_size = inet6_get_link_af_size,
++	.validate_link_af = inet6_validate_link_af,
+ 	.set_link_af	  = inet6_set_link_af,
+ };
+ 
+diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
+index 4c11cbc..1ca51c7 100644
+--- a/net/ipv6/addrconf_core.c
++++ b/net/ipv6/addrconf_core.c
+@@ -126,6 +126,14 @@ static void snmp6_free_dev(struct inet6_dev *idev)
+ 	snmp_mib_free((void __percpu **)idev->stats.ipv6);
+ }
+ 
++static void in6_dev_finish_destroy_rcu(struct rcu_head *head)
++{
++	struct inet6_dev *idev = container_of(head, struct inet6_dev, rcu);
++
++	snmp6_free_dev(idev);
++	kfree(idev);
++}
++
+ /* Nobody refers to this device, we may destroy it. */
+ 
+ void in6_dev_finish_destroy(struct inet6_dev *idev)
+@@ -144,7 +152,6 @@ void in6_dev_finish_destroy(struct inet6_dev *idev)
+ 		pr_warn("Freeing alive inet6 device %p\n", idev);
+ 		return;
+ 	}
+-	snmp6_free_dev(idev);
+-	kfree_rcu(idev, rcu);
++	call_rcu(&idev->rcu, in6_dev_finish_destroy_rcu);
+ }
+ EXPORT_SYMBOL(in6_dev_finish_destroy);
+diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
+index d935889..d0f3a63 100644
+--- a/net/ipv6/af_inet6.c
++++ b/net/ipv6/af_inet6.c
+@@ -200,7 +200,7 @@ lookup_protocol:
+ 	np->mcast_hops	= IPV6_DEFAULT_MCASTHOPS;
+ 	np->mc_loop	= 1;
+ 	np->pmtudisc	= IPV6_PMTUDISC_WANT;
+-	np->ipv6only	= net->ipv6.sysctl.bindv6only;
++	sk->sk_ipv6only	= net->ipv6.sysctl.bindv6only;
+ 
+ 	/* Init the ipv4 part of the socket since we can have sockets
+ 	 * using v6 API for ipv4.
+@@ -297,7 +297,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+ 		/* Binding to v4-mapped address on a v6-only socket
+ 		 * makes no sense
+ 		 */
+-		if (np->ipv6only) {
++		if (sk->sk_ipv6only) {
+ 			err = -EINVAL;
+ 			goto out;
+ 		}
+@@ -374,7 +374,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
+ 	if (addr_type != IPV6_ADDR_ANY) {
+ 		sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
+ 		if (addr_type != IPV6_ADDR_MAPPED)
+-			np->ipv6only = 1;
++			sk->sk_ipv6only = 1;
+ 	}
+ 	if (snum)
+ 		sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
+@@ -776,7 +776,7 @@ static int __net_init inet6_net_init(struct net *net)
+ 	net->ipv6.sysctl.bindv6only = 0;
+ 	net->ipv6.sysctl.icmpv6_time = 1*HZ;
+ 	net->ipv6.sysctl.flowlabel_consistency = 1;
+-	atomic_set(&net->ipv6.rt_genid, 0);
++	atomic_set_unchecked(&net->ipv6.rt_genid, 0);
+ 
+ 	err = ipv6_init_mibs(net);
+ 	if (err)
+diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
+index 841cfa2..c85df82 100644
+--- a/net/ipv6/datagram.c
++++ b/net/ipv6/datagram.c
+@@ -934,5 +934,5 @@ void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
+ 		   0,
+ 		   sock_i_ino(sp),
+ 		   atomic_read(&sp->sk_refcnt), sp,
+-		   atomic_read(&sp->sk_drops));
++		   atomic_read_unchecked(&sp->sk_drops));
+ }
+diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
+index 7b32652..0bc348b 100644
+--- a/net/ipv6/icmp.c
++++ b/net/ipv6/icmp.c
+@@ -1005,7 +1005,7 @@ static struct ctl_table ipv6_icmp_table_template[] = {
+ 
+ struct ctl_table * __net_init ipv6_icmp_sysctl_init(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(ipv6_icmp_table_template,
+ 			sizeof(ipv6_icmp_table_template),
+diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
+index 4a230b1..42d6ab42 100644
+--- a/net/ipv6/ip6_gre.c
++++ b/net/ipv6/ip6_gre.c
+@@ -71,7 +71,7 @@ struct ip6gre_net {
+ 	struct net_device *fb_tunnel_dev;
+ };
+ 
+-static struct rtnl_link_ops ip6gre_link_ops __read_mostly;
++static struct rtnl_link_ops ip6gre_link_ops;
+ static int ip6gre_tunnel_init(struct net_device *dev);
+ static void ip6gre_tunnel_setup(struct net_device *dev);
+ static void ip6gre_tunnel_link(struct ip6gre_net *ign, struct ip6_tnl *t);
+@@ -413,7 +413,7 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+ 		if (code == ICMPV6_HDR_FIELD)
+ 			teli = ip6_tnl_parse_tlv_enc_lim(skb, skb->data);
+ 
+-		if (teli && teli == info - 2) {
++		if (teli && teli == be32_to_cpu(info) - 2) {
+ 			tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
+ 			if (tel->encap_limit == 0) {
+ 				net_warn_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
+@@ -425,7 +425,7 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+ 		}
+ 		break;
+ 	case ICMPV6_PKT_TOOBIG:
+-		mtu = info - offset;
++		mtu = be32_to_cpu(info) - offset;
+ 		if (mtu < IPV6_MIN_MTU)
+ 			mtu = IPV6_MIN_MTU;
+ 		t->dev->mtu = mtu;
+@@ -1290,7 +1290,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
+ }
+ 
+ 
+-static struct inet6_protocol ip6gre_protocol __read_mostly = {
++static struct inet6_protocol ip6gre_protocol = {
+ 	.handler     = ip6gre_rcv,
+ 	.err_handler = ip6gre_err,
+ 	.flags       = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
+@@ -1644,7 +1644,7 @@ static const struct nla_policy ip6gre_policy[IFLA_GRE_MAX + 1] = {
+ 	[IFLA_GRE_FLAGS]       = { .type = NLA_U32 },
+ };
+ 
+-static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
++static struct rtnl_link_ops ip6gre_link_ops = {
+ 	.kind		= "ip6gre",
+ 	.maxtype	= IFLA_GRE_MAX,
+ 	.policy		= ip6gre_policy,
+@@ -1658,7 +1658,7 @@ static struct rtnl_link_ops ip6gre_link_ops __read_mostly = {
+ 	.fill_info	= ip6gre_fill_info,
+ };
+ 
+-static struct rtnl_link_ops ip6gre_tap_ops __read_mostly = {
++static struct rtnl_link_ops ip6gre_tap_ops = {
+ 	.kind		= "ip6gretap",
+ 	.maxtype	= IFLA_GRE_MAX,
+ 	.policy		= ip6gre_policy,
+diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
+index b2f0915..066db10 100644
+--- a/net/ipv6/ip6_offload.c
++++ b/net/ipv6/ip6_offload.c
+@@ -46,6 +46,7 @@ static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
+ 		if (unlikely(!pskb_may_pull(skb, len)))
+ 			break;
+ 
++		opth = (void *)skb->data;
+ 		proto = opth->nexthdr;
+ 		__skb_pull(skb, len);
+ 	}
+diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
+index 657639d..8b609c5 100644
+--- a/net/ipv6/ip6_tunnel.c
++++ b/net/ipv6/ip6_tunnel.c
+@@ -86,7 +86,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
+ 
+ static int ip6_tnl_dev_init(struct net_device *dev);
+ static void ip6_tnl_dev_setup(struct net_device *dev);
+-static struct rtnl_link_ops ip6_link_ops __read_mostly;
++static struct rtnl_link_ops ip6_link_ops;
+ 
+ static int ip6_tnl_net_id __read_mostly;
+ struct ip6_tnl_net {
+@@ -1707,7 +1707,7 @@ static const struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
+ 	[IFLA_IPTUN_PROTO]		= { .type = NLA_U8 },
+ };
+ 
+-static struct rtnl_link_ops ip6_link_ops __read_mostly = {
++static struct rtnl_link_ops ip6_link_ops = {
+ 	.kind		= "ip6tnl",
+ 	.maxtype	= IFLA_IPTUN_MAX,
+ 	.policy		= ip6_tnl_policy,
+diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
+index 28456c9..13a4115 100644
+--- a/net/ipv6/ip6_vti.c
++++ b/net/ipv6/ip6_vti.c
+@@ -62,7 +62,7 @@ static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
+ 
+ static int vti6_dev_init(struct net_device *dev);
+ static void vti6_dev_setup(struct net_device *dev);
+-static struct rtnl_link_ops vti6_link_ops __read_mostly;
++static struct rtnl_link_ops vti6_link_ops;
+ 
+ static int vti6_net_id __read_mostly;
+ struct vti6_net {
+@@ -901,7 +901,7 @@ static const struct nla_policy vti6_policy[IFLA_VTI_MAX + 1] = {
+ 	[IFLA_VTI_OKEY]		= { .type = NLA_U32 },
+ };
+ 
+-static struct rtnl_link_ops vti6_link_ops __read_mostly = {
++static struct rtnl_link_ops vti6_link_ops = {
+ 	.kind		= "vti6",
+ 	.maxtype	= IFLA_VTI_MAX,
+ 	.policy		= vti6_policy,
+diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
+index 0a00f44..123e322 100644
+--- a/net/ipv6/ipv6_sockglue.c
++++ b/net/ipv6/ipv6_sockglue.c
+@@ -235,7 +235,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
+ 		if (optlen < sizeof(int) ||
+ 		    inet_sk(sk)->inet_num)
+ 			goto e_inval;
+-		np->ipv6only = valbool;
++		sk->sk_ipv6only = valbool;
+ 		retv = 0;
+ 		break;
+ 
+@@ -991,7 +991,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
+ 		if (sk->sk_type != SOCK_STREAM)
+ 			return -ENOPROTOOPT;
+ 
+-		msg.msg_control = optval;
++		msg.msg_control = (void __force_kernel *)optval;
+ 		msg.msg_controllen = len;
+ 		msg.msg_flags = flags;
+ 
+@@ -1058,7 +1058,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
+ 	}
+ 
+ 	case IPV6_V6ONLY:
+-		val = np->ipv6only;
++		val = sk->sk_ipv6only;
+ 		break;
+ 
+ 	case IPV6_RECVPKTINFO:
+diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
+index e080fbb..412b3cf 100644
+--- a/net/ipv6/netfilter/ip6_tables.c
++++ b/net/ipv6/netfilter/ip6_tables.c
+@@ -1083,14 +1083,14 @@ static int compat_table_info(const struct xt_table_info *info,
+ #endif
+ 
+ static int get_info(struct net *net, void __user *user,
+-                    const int *len, int compat)
++                    int len, int compat)
+ {
+ 	char name[XT_TABLE_MAXNAMELEN];
+ 	struct xt_table *t;
+ 	int ret;
+ 
+-	if (*len != sizeof(struct ip6t_getinfo)) {
+-		duprintf("length %u != %zu\n", *len,
++	if (len != sizeof(struct ip6t_getinfo)) {
++		duprintf("length %u != %zu\n", len,
+ 			 sizeof(struct ip6t_getinfo));
+ 		return -EINVAL;
+ 	}
+@@ -1127,7 +1127,7 @@ static int get_info(struct net *net, void __user *user,
+ 		info.size = private->size;
+ 		strcpy(info.name, name);
+ 
+-		if (copy_to_user(user, &info, *len) != 0)
++		if (copy_to_user(user, &info, len) != 0)
+ 			ret = -EFAULT;
+ 		else
+ 			ret = 0;
+@@ -1983,7 +1983,7 @@ compat_do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
+ 
+ 	switch (cmd) {
+ 	case IP6T_SO_GET_INFO:
+-		ret = get_info(sock_net(sk), user, len, 1);
++		ret = get_info(sock_net(sk), user, *len, 1);
+ 		break;
+ 	case IP6T_SO_GET_ENTRIES:
+ 		ret = compat_get_entries(sock_net(sk), user, len);
+@@ -2030,7 +2030,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
+ 
+ 	switch (cmd) {
+ 	case IP6T_SO_GET_INFO:
+-		ret = get_info(sock_net(sk), user, len, 0);
++		ret = get_info(sock_net(sk), user, *len, 0);
+ 		break;
+ 
+ 	case IP6T_SO_GET_ENTRIES:
+diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
+index 767ab8d..c5ec70a 100644
+--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
++++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
+@@ -90,12 +90,11 @@ static struct ctl_table nf_ct_frag6_sysctl_table[] = {
+ 
+ static int nf_ct_frag6_sysctl_register(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table = NULL;
+ 	struct ctl_table_header *hdr;
+ 
+-	table = nf_ct_frag6_sysctl_table;
+ 	if (!net_eq(net, &init_net)) {
+-		table = kmemdup(table, sizeof(nf_ct_frag6_sysctl_table),
++		table = kmemdup(nf_ct_frag6_sysctl_table, sizeof(nf_ct_frag6_sysctl_table),
+ 				GFP_KERNEL);
+ 		if (table == NULL)
+ 			goto err_alloc;
+@@ -103,9 +102,9 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
+ 		table[0].data = &net->nf_frag.frags.timeout;
+ 		table[1].data = &net->nf_frag.frags.low_thresh;
+ 		table[2].data = &net->nf_frag.frags.high_thresh;
+-	}
+-
+-	hdr = register_net_sysctl(net, "net/netfilter", table);
++		hdr = register_net_sysctl(net, "net/netfilter", table);
++	} else
++		hdr = register_net_sysctl(net, "net/netfilter", nf_ct_frag6_sysctl_table);
+ 	if (hdr == NULL)
+ 		goto err_reg;
+ 
+@@ -113,8 +112,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net)
+ 	return 0;
+ 
+ err_reg:
+-	if (!net_eq(net, &init_net))
+-		kfree(table);
++	kfree(table);
+ err_alloc:
+ 	return -ENOMEM;
+ }
+diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
+index 4611995..5b5bbe3 100644
+--- a/net/ipv6/ping.c
++++ b/net/ipv6/ping.c
+@@ -247,6 +247,24 @@ static struct pernet_operations ping_v6_net_ops = {
+ };
+ #endif
+ 
++static struct pingv6_ops real_pingv6_ops = {
++	.ipv6_recv_error		= ipv6_recv_error,
++	.ip6_datagram_recv_common_ctl	= ip6_datagram_recv_common_ctl,
++	.ip6_datagram_recv_specific_ctl	= ip6_datagram_recv_specific_ctl,
++	.icmpv6_err_convert		= icmpv6_err_convert,
++	.ipv6_icmp_error		= ipv6_icmp_error,
++	.ipv6_chk_addr			= ipv6_chk_addr,
++};
++
++static struct pingv6_ops dummy_pingv6_ops = {
++	.ipv6_recv_error		= dummy_ipv6_recv_error,
++	.ip6_datagram_recv_common_ctl	= dummy_ip6_datagram_recv_ctl,
++	.ip6_datagram_recv_specific_ctl	= dummy_ip6_datagram_recv_ctl,
++	.icmpv6_err_convert		= dummy_icmpv6_err_convert,
++	.ipv6_icmp_error		= dummy_ipv6_icmp_error,
++	.ipv6_chk_addr			= dummy_ipv6_chk_addr,
++};
++
+ int __init pingv6_init(void)
+ {
+ #ifdef CONFIG_PROC_FS
+@@ -254,13 +272,7 @@ int __init pingv6_init(void)
+ 	if (ret)
+ 		return ret;
+ #endif
+-	pingv6_ops.ipv6_recv_error = ipv6_recv_error;
+-	pingv6_ops.ip6_datagram_recv_common_ctl = ip6_datagram_recv_common_ctl;
+-	pingv6_ops.ip6_datagram_recv_specific_ctl =
+-		ip6_datagram_recv_specific_ctl;
+-	pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
+-	pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
+-	pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
++	pingv6_ops = &real_pingv6_ops;
+ 	return inet6_register_protosw(&pingv6_protosw);
+ }
+ 
+@@ -269,14 +281,9 @@ int __init pingv6_init(void)
+  */
+ void pingv6_exit(void)
+ {
+-	pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
+-	pingv6_ops.ip6_datagram_recv_common_ctl = dummy_ip6_datagram_recv_ctl;
+-	pingv6_ops.ip6_datagram_recv_specific_ctl = dummy_ip6_datagram_recv_ctl;
+-	pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
+-	pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
+-	pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
+ #ifdef CONFIG_PROC_FS
+ 	unregister_pernet_subsys(&ping_v6_net_ops);
+ #endif
++	pingv6_ops = &dummy_pingv6_ops;
+ 	inet6_unregister_protosw(&pingv6_protosw);
+ }
+diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
+index 091d066..139d410 100644
+--- a/net/ipv6/proc.c
++++ b/net/ipv6/proc.c
+@@ -309,7 +309,7 @@ static int __net_init ipv6_proc_init_net(struct net *net)
+ 	if (!proc_create("snmp6", S_IRUGO, net->proc_net, &snmp6_seq_fops))
+ 		goto proc_snmp6_fail;
+ 
+-	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
++	net->mib.proc_net_devsnmp6 = proc_mkdir_restrict("dev_snmp6", net->proc_net);
+ 	if (!net->mib.proc_net_devsnmp6)
+ 		goto proc_dev_snmp6_fail;
+ 	return 0;
+diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
+index 1f29996..7418779 100644
+--- a/net/ipv6/raw.c
++++ b/net/ipv6/raw.c
+@@ -388,7 +388,7 @@ static inline int rawv6_rcv_skb(struct sock *sk, struct sk_buff *skb)
+ {
+ 	if ((raw6_sk(sk)->checksum || rcu_access_pointer(sk->sk_filter)) &&
+ 	    skb_checksum_complete(skb)) {
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		kfree_skb(skb);
+ 		return NET_RX_DROP;
+ 	}
+@@ -416,7 +416,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
+ 	struct raw6_sock *rp = raw6_sk(sk);
+ 
+ 	if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb)) {
+-		atomic_inc(&sk->sk_drops);
++		atomic_inc_unchecked(&sk->sk_drops);
+ 		kfree_skb(skb);
+ 		return NET_RX_DROP;
+ 	}
+@@ -440,7 +440,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
+ 
+ 	if (inet->hdrincl) {
+ 		if (skb_checksum_complete(skb)) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			kfree_skb(skb);
+ 			return NET_RX_DROP;
+ 		}
+@@ -610,7 +610,7 @@ out:
+ 	return err;
+ }
+ 
+-static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
++static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length,
+ 			struct flowi6 *fl6, struct dst_entry **dstp,
+ 			unsigned int flags)
+ {
+@@ -922,12 +922,15 @@ do_confirm:
+ static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
+ 			       char __user *optval, int optlen)
+ {
++	struct icmp6_filter filter;
++
+ 	switch (optname) {
+ 	case ICMPV6_FILTER:
+ 		if (optlen > sizeof(struct icmp6_filter))
+ 			optlen = sizeof(struct icmp6_filter);
+-		if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
++		if (copy_from_user(&filter, optval, optlen))
+ 			return -EFAULT;
++		raw6_sk(sk)->filter = filter;
+ 		return 0;
+ 	default:
+ 		return -ENOPROTOOPT;
+@@ -940,6 +943,7 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
+ 			       char __user *optval, int __user *optlen)
+ {
+ 	int len;
++	struct icmp6_filter filter;
+ 
+ 	switch (optname) {
+ 	case ICMPV6_FILTER:
+@@ -951,7 +955,8 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
+ 			len = sizeof(struct icmp6_filter);
+ 		if (put_user(len, optlen))
+ 			return -EFAULT;
+-		if (copy_to_user(optval, &raw6_sk(sk)->filter, len))
++		filter = raw6_sk(sk)->filter;
++		if (len > sizeof filter || copy_to_user(optval, &filter, len))
+ 			return -EFAULT;
+ 		return 0;
+ 	default:
+diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
+index cc85a9b..526a133 100644
+--- a/net/ipv6/reassembly.c
++++ b/net/ipv6/reassembly.c
+@@ -626,12 +626,11 @@ static struct ctl_table ip6_frags_ctl_table[] = {
+ 
+ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table = NULL;
+ 	struct ctl_table_header *hdr;
+ 
+-	table = ip6_frags_ns_ctl_table;
+ 	if (!net_eq(net, &init_net)) {
+-		table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
++		table = kmemdup(ip6_frags_ns_ctl_table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
+ 		if (table == NULL)
+ 			goto err_alloc;
+ 
+@@ -642,9 +641,10 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
+ 		/* Don't export sysctls to unprivileged users */
+ 		if (net->user_ns != &init_user_ns)
+ 			table[0].procname = NULL;
+-	}
++		hdr = register_net_sysctl(net, "net/ipv6", table);
++	} else
++		hdr = register_net_sysctl(net, "net/ipv6", ip6_frags_ns_ctl_table);
+ 
+-	hdr = register_net_sysctl(net, "net/ipv6", table);
+ 	if (hdr == NULL)
+ 		goto err_reg;
+ 
+@@ -652,8 +652,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net)
+ 	return 0;
+ 
+ err_reg:
+-	if (!net_eq(net, &init_net))
+-		kfree(table);
++	kfree(table);
+ err_alloc:
+ 	return -ENOMEM;
+ }
+diff --git a/net/ipv6/route.c b/net/ipv6/route.c
+index 3809ca2..fdda6b4 100644
+--- a/net/ipv6/route.c
++++ b/net/ipv6/route.c
+@@ -2970,7 +2970,7 @@ struct ctl_table ipv6_route_table_template[] = {
+ 
+ struct ctl_table * __net_init ipv6_route_sysctl_init(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(ipv6_route_table_template,
+ 			sizeof(ipv6_route_table_template),
+diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
+index 317b6db..9dbd284 100644
+--- a/net/ipv6/sit.c
++++ b/net/ipv6/sit.c
+@@ -74,7 +74,7 @@ static void ipip6_tunnel_setup(struct net_device *dev);
+ static void ipip6_dev_free(struct net_device *dev);
+ static bool check_6rd(struct ip_tunnel *tunnel, const struct in6_addr *v6dst,
+ 		      __be32 *v4dst);
+-static struct rtnl_link_ops sit_link_ops __read_mostly;
++static struct rtnl_link_ops sit_link_ops;
+ 
+ static int sit_net_id __read_mostly;
+ struct sit_net {
+@@ -483,11 +483,11 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
+  */
+ static int ipip6_err_gen_icmpv6_unreach(struct sk_buff *skb)
+ {
+-	const struct iphdr *iph = (const struct iphdr *) skb->data;
++	int ihl = ((const struct iphdr *)skb->data)->ihl*4;
+ 	struct rt6_info *rt;
+ 	struct sk_buff *skb2;
+ 
+-	if (!pskb_may_pull(skb, iph->ihl * 4 + sizeof(struct ipv6hdr) + 8))
++	if (!pskb_may_pull(skb, ihl + sizeof(struct ipv6hdr) + 8))
+ 		return 1;
+ 
+ 	skb2 = skb_clone(skb, GFP_ATOMIC);
+@@ -496,7 +496,7 @@ static int ipip6_err_gen_icmpv6_unreach(struct sk_buff *skb)
+ 		return 1;
+ 
+ 	skb_dst_drop(skb2);
+-	skb_pull(skb2, iph->ihl * 4);
++	skb_pull(skb2, ihl);
+ 	skb_reset_network_header(skb2);
+ 
+ 	rt = rt6_lookup(dev_net(skb->dev), &ipv6_hdr(skb2)->saddr, NULL, 0, 0);
+@@ -1680,7 +1680,7 @@ static void ipip6_dellink(struct net_device *dev, struct list_head *head)
+ 		unregister_netdevice_queue(dev, head);
+ }
+ 
+-static struct rtnl_link_ops sit_link_ops __read_mostly = {
++static struct rtnl_link_ops sit_link_ops = {
+ 	.kind		= "sit",
+ 	.maxtype	= IFLA_IPTUN_MAX,
+ 	.policy		= ipip6_policy,
+diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
+index 7f405a1..eabef92 100644
+--- a/net/ipv6/sysctl_net_ipv6.c
++++ b/net/ipv6/sysctl_net_ipv6.c
+@@ -54,7 +54,7 @@ static struct ctl_table ipv6_rotable[] = {
+ 
+ static int __net_init ipv6_sysctl_net_init(struct net *net)
+ {
+-	struct ctl_table *ipv6_table;
++	ctl_table_no_const *ipv6_table;
+ 	struct ctl_table *ipv6_route_table;
+ 	struct ctl_table *ipv6_icmp_table;
+ 	int err;
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
+index b50ae29..568a06f 100644
+--- a/net/ipv6/tcp_ipv6.c
++++ b/net/ipv6/tcp_ipv6.c
+@@ -104,6 +104,10 @@ static void inet6_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
+ 		inet6_sk(sk)->rx_dst_cookie = rt->rt6i_node->fn_sernum;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_enable_blackhole;
++#endif
++
+ static void tcp_v6_hash(struct sock *sk)
+ {
+ 	if (sk->sk_state != TCP_CLOSE) {
+@@ -1412,6 +1416,9 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
+ 	return 0;
+ 
+ reset:
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	if (!grsec_enable_blackhole)
++#endif
+ 	tcp_v6_send_reset(sk, skb);
+ discard:
+ 	if (opt_skb)
+@@ -1496,12 +1503,20 @@ static int tcp_v6_rcv(struct sk_buff *skb)
+ 	TCP_SKB_CB(skb)->sacked = 0;
+ 
+ 	sk = __inet6_lookup_skb(&tcp_hashinfo, skb, th->source, th->dest);
+-	if (!sk)
++	if (!sk) {
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		ret = 1;
++#endif
+ 		goto no_tcp_socket;
++	}
+ 
+ process:
+-	if (sk->sk_state == TCP_TIME_WAIT)
++	if (sk->sk_state == TCP_TIME_WAIT) {
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		ret = 2;
++#endif
+ 		goto do_time_wait;
++	}
+ 
+ 	if (hdr->hop_limit < inet6_sk(sk)->min_hopcount) {
+ 		NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
+@@ -1553,6 +1568,10 @@ csum_error:
+ bad_packet:
+ 		TCP_INC_STATS_BH(net, TCP_MIB_INERRS);
+ 	} else {
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++		if (!grsec_enable_blackhole || (ret == 1 &&
++		    (skb->dev->flags & IFF_LOOPBACK)))
++#endif
+ 		tcp_v6_send_reset(NULL, skb);
+ 	}
+ 
+diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
+index 38625a9..9f371ac 100644
+--- a/net/ipv6/udp.c
++++ b/net/ipv6/udp.c
+@@ -76,10 +76,13 @@ static unsigned int udp6_ehashfn(struct net *net,
+ 			       udp_ipv6_hash_secret + net_hash_mix(net));
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++extern int grsec_enable_blackhole;
++#endif
++
+ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
+ {
+ 	const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
+-	int sk_ipv6only = ipv6_only_sock(sk);
+ 	int sk2_ipv6only = inet_v6_ipv6only(sk2);
+ 	int addr_type = ipv6_addr_type(&sk->sk_v6_rcv_saddr);
+ 	int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
+@@ -95,7 +98,7 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
+ 		return 1;
+ 
+ 	if (addr_type == IPV6_ADDR_ANY &&
+-	    !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED))
++	    !(ipv6_only_sock(sk) && addr_type2 == IPV6_ADDR_MAPPED))
+ 		return 1;
+ 
+ 	if (sk2_rcv_saddr6 &&
+@@ -435,7 +438,7 @@ try_again:
+ 	if (unlikely(err)) {
+ 		trace_kfree_skb(skb, udpv6_recvmsg);
+ 		if (!peeked) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			if (is_udp4)
+ 				UDP_INC_STATS_USER(sock_net(sk),
+ 						   UDP_MIB_INERRORS,
+@@ -688,7 +691,7 @@ csum_error:
+ 	UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
+ drop:
+ 	UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
+-	atomic_inc(&sk->sk_drops);
++	atomic_inc_unchecked(&sk->sk_drops);
+ 	kfree_skb(skb);
+ 	return -1;
+ }
+@@ -745,7 +748,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
+ 		if (likely(skb1 == NULL))
+ 			skb1 = (i == final) ? skb : skb_clone(skb, GFP_ATOMIC);
+ 		if (!skb1) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
+ 					  IS_UDPLITE(sk));
+ 			UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS,
+@@ -884,6 +887,9 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
+ 		goto csum_error;
+ 
+ 	UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
++#ifdef CONFIG_GRKERNSEC_BLACKHOLE
++	if (!grsec_enable_blackhole || (skb->dev->flags & IFF_LOOPBACK))
++#endif
+ 	icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0);
+ 
+ 	kfree_skb(skb);
+diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
+index 5f8e128..776fc30 100644
+--- a/net/ipv6/xfrm6_policy.c
++++ b/net/ipv6/xfrm6_policy.c
+@@ -130,12 +130,18 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
+ {
+ 	struct flowi6 *fl6 = &fl->u.ip6;
+ 	int onlyproto = 0;
+-	u16 offset = skb_network_header_len(skb);
+ 	const struct ipv6hdr *hdr = ipv6_hdr(skb);
++	u16 offset = sizeof(*hdr);
+ 	struct ipv6_opt_hdr *exthdr;
+ 	const unsigned char *nh = skb_network_header(skb);
+-	u8 nexthdr = nh[IP6CB(skb)->nhoff];
++	u16 nhoff = IP6CB(skb)->nhoff;
+ 	int oif = 0;
++	u8 nexthdr;
++
++	if (!nhoff)
++		nhoff = offsetof(struct ipv6hdr, nexthdr);
++
++	nexthdr = nh[nhoff];
+ 
+ 	if (skb_dst(skb))
+ 		oif = skb_dst(skb)->dev->ifindex;
+@@ -170,8 +176,10 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
+ 		case IPPROTO_DCCP:
+ 			if (!onlyproto && (nh + offset + 4 < skb->data ||
+ 			     pskb_may_pull(skb, nh + offset + 4 - skb->data))) {
+-				__be16 *ports = (__be16 *)exthdr;
++				__be16 *ports;
+ 
++				nh = skb_network_header(skb);
++				ports = (__be16 *)(nh + offset);
+ 				fl6->fl6_sport = ports[!!reverse];
+ 				fl6->fl6_dport = ports[!reverse];
+ 			}
+@@ -180,8 +188,10 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
+ 
+ 		case IPPROTO_ICMPV6:
+ 			if (!onlyproto && pskb_may_pull(skb, nh + offset + 2 - skb->data)) {
+-				u8 *icmp = (u8 *)exthdr;
++				u8 *icmp;
+ 
++				nh = skb_network_header(skb);
++				icmp = (u8 *)(nh + offset);
+ 				fl6->fl6_icmp_type = icmp[0];
+ 				fl6->fl6_icmp_code = icmp[1];
+ 			}
+@@ -192,8 +202,9 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
+ 		case IPPROTO_MH:
+ 			if (!onlyproto && pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
+ 				struct ip6_mh *mh;
+-				mh = (struct ip6_mh *)exthdr;
+ 
++				nh = skb_network_header(skb);
++				mh = (struct ip6_mh *)(nh + offset);
+ 				fl6->fl6_mh_type = mh->ip6mh_type;
+ 			}
+ 			fl6->flowi6_proto = nexthdr;
+@@ -212,11 +223,11 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
+ 	}
+ }
+ 
+-static inline int xfrm6_garbage_collect(struct dst_ops *ops)
++static int xfrm6_garbage_collect(struct dst_ops *ops)
+ {
+ 	struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops);
+ 
+-	xfrm6_policy_afinfo.garbage_collect(net);
++	xfrm_garbage_collect_deferred(net);
+ 	return dst_entries_get_fast(ops) > ops->gc_thresh * 2;
+ }
+ 
+@@ -329,19 +340,19 @@ static struct ctl_table xfrm6_policy_table[] = {
+ 
+ static int __net_init xfrm6_net_init(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table = NULL;
+ 	struct ctl_table_header *hdr;
+ 
+-	table = xfrm6_policy_table;
+ 	if (!net_eq(net, &init_net)) {
+-		table = kmemdup(table, sizeof(xfrm6_policy_table), GFP_KERNEL);
++		table = kmemdup(xfrm6_policy_table, sizeof(xfrm6_policy_table), GFP_KERNEL);
+ 		if (!table)
+ 			goto err_alloc;
+ 
+ 		table[0].data = &net->xfrm.xfrm6_dst_ops.gc_thresh;
+-	}
++		hdr = register_net_sysctl(net, "net/ipv6", table);
++	} else
++		hdr = register_net_sysctl(net, "net/ipv6", xfrm6_policy_table);
+ 
+-	hdr = register_net_sysctl(net, "net/ipv6", table);
+ 	if (!hdr)
+ 		goto err_reg;
+ 
+@@ -349,8 +360,7 @@ static int __net_init xfrm6_net_init(struct net *net)
+ 	return 0;
+ 
+ err_reg:
+-	if (!net_eq(net, &init_net))
+-		kfree(table);
++	kfree(table);
+ err_alloc:
+ 	return -ENOMEM;
+ }
+diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
+index e15c16a..7cf07aa 100644
+--- a/net/ipx/ipx_proc.c
++++ b/net/ipx/ipx_proc.c
+@@ -289,7 +289,7 @@ int __init ipx_proc_init(void)
+ 	struct proc_dir_entry *p;
+ 	int rc = -ENOMEM;
+ 
+-	ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
++	ipx_proc_dir = proc_mkdir_restrict("ipx", init_net.proc_net);
+ 
+ 	if (!ipx_proc_dir)
+ 		goto out;
+diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
+index fdcb968..2b6cc59 100644
+--- a/net/irda/ircomm/ircomm_tty.c
++++ b/net/irda/ircomm/ircomm_tty.c
+@@ -317,11 +317,11 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
+ 	add_wait_queue(&port->open_wait, &wait);
+ 
+ 	IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n",
+-	      __FILE__, __LINE__, tty->driver->name, port->count);
++	      __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 	spin_lock_irqsave(&port->lock, flags);
+ 	if (!tty_hung_up_p(filp))
+-		port->count--;
++		atomic_dec(&port->count);
+ 	port->blocked_open++;
+ 	spin_unlock_irqrestore(&port->lock, flags);
+ 
+@@ -356,7 +356,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
+ 		}
+ 
+ 		IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n",
+-		      __FILE__, __LINE__, tty->driver->name, port->count);
++		      __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 		schedule();
+ 	}
+@@ -366,12 +366,12 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
+ 
+ 	spin_lock_irqsave(&port->lock, flags);
+ 	if (!tty_hung_up_p(filp))
+-		port->count++;
++		atomic_inc(&port->count);
+ 	port->blocked_open--;
+ 	spin_unlock_irqrestore(&port->lock, flags);
+ 
+ 	IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n",
+-	      __FILE__, __LINE__, tty->driver->name, port->count);
++	      __FILE__, __LINE__, tty->driver->name, atomic_read(&port->count));
+ 
+ 	if (!retval)
+ 		port->flags |= ASYNC_NORMAL_ACTIVE;
+@@ -445,12 +445,12 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
+ 
+ 	/* ++ is not atomic, so this should be protected - Jean II */
+ 	spin_lock_irqsave(&self->port.lock, flags);
+-	self->port.count++;
++	atomic_inc(&self->port.count);
+ 	spin_unlock_irqrestore(&self->port.lock, flags);
+ 	tty_port_tty_set(&self->port, tty);
+ 
+ 	IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __func__ , tty->driver->name,
+-		   self->line, self->port.count);
++		   self->line, atomic_read(&self->port.count));
+ 
+ 	/* Not really used by us, but lets do it anyway */
+ 	self->port.low_latency = (self->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+@@ -989,7 +989,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
+ 		tty_kref_put(port->tty);
+ 	}
+ 	port->tty = NULL;
+-	port->count = 0;
++	atomic_set(&port->count, 0);
+ 	spin_unlock_irqrestore(&port->lock, flags);
+ 
+ 	wake_up_interruptible(&port->open_wait);
+@@ -1346,7 +1346,7 @@ static void ircomm_tty_line_info(struct ircomm_tty_cb *self, struct seq_file *m)
+ 	seq_putc(m, '\n');
+ 
+ 	seq_printf(m, "Role: %s\n", self->client ? "client" : "server");
+-	seq_printf(m, "Open count: %d\n", self->port.count);
++	seq_printf(m, "Open count: %d\n", atomic_read(&self->port.count));
+ 	seq_printf(m, "Max data size: %d\n", self->max_data_size);
+ 	seq_printf(m, "Max header size: %d\n", self->max_header_size);
+ 
+diff --git a/net/irda/irproc.c b/net/irda/irproc.c
+index b9ac598..f88cc56 100644
+--- a/net/irda/irproc.c
++++ b/net/irda/irproc.c
+@@ -66,7 +66,7 @@ void __init irda_proc_register(void)
+ {
+ 	int i;
+ 
+-	proc_irda = proc_mkdir("irda", init_net.proc_net);
++	proc_irda = proc_mkdir_restrict("irda", init_net.proc_net);
+ 	if (proc_irda == NULL)
+ 		return;
+ 
+diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
+index 1465363..c7e9f14 100644
+--- a/net/iucv/af_iucv.c
++++ b/net/iucv/af_iucv.c
+@@ -773,10 +773,10 @@ static int iucv_sock_autobind(struct sock *sk)
+ 
+ 	write_lock_bh(&iucv_sk_list.lock);
+ 
+-	sprintf(name, "%08x", atomic_inc_return(&iucv_sk_list.autobind_name));
++	sprintf(name, "%08x", atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
+ 	while (__iucv_get_sock_by_name(name)) {
+ 		sprintf(name, "%08x",
+-			atomic_inc_return(&iucv_sk_list.autobind_name));
++			atomic_inc_return_unchecked(&iucv_sk_list.autobind_name));
+ 	}
+ 
+ 	write_unlock_bh(&iucv_sk_list.lock);
+diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
+index cd5b8ec..f205e6b 100644
+--- a/net/iucv/iucv.c
++++ b/net/iucv/iucv.c
+@@ -690,7 +690,7 @@ static int iucv_cpu_notify(struct notifier_block *self,
+ 	return NOTIFY_OK;
+ }
+ 
+-static struct notifier_block __refdata iucv_cpu_notifier = {
++static struct notifier_block iucv_cpu_notifier = {
+ 	.notifier_call = iucv_cpu_notify,
+ };
+ 
+diff --git a/net/key/af_key.c b/net/key/af_key.c
+index 7932697..a13d158 100644
+--- a/net/key/af_key.c
++++ b/net/key/af_key.c
+@@ -3052,10 +3052,10 @@ static int pfkey_send_policy_notify(struct xfrm_policy *xp, int dir, const struc
+ static u32 get_acqseq(void)
+ {
+ 	u32 res;
+-	static atomic_t acqseq;
++	static atomic_unchecked_t acqseq;
+ 
+ 	do {
+-		res = atomic_inc_return(&acqseq);
++		res = atomic_inc_return_unchecked(&acqseq);
+ 	} while (!res);
+ 	return res;
+ }
+diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
+index 0b44d85..94067b3 100644
+--- a/net/l2tp/l2tp_ip.c
++++ b/net/l2tp/l2tp_ip.c
+@@ -609,7 +609,7 @@ static struct inet_protosw l2tp_ip_protosw = {
+ 	.no_check	= 0,
+ };
+ 
+-static struct net_protocol l2tp_ip_protocol __read_mostly = {
++static const struct net_protocol l2tp_ip_protocol = {
+ 	.handler	= l2tp_ip_recv,
+ 	.netns_ok	= 1,
+ };
+diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
+index 7704ea9..7f2b105 100644
+--- a/net/l2tp/l2tp_ip6.c
++++ b/net/l2tp/l2tp_ip6.c
+@@ -764,7 +764,7 @@ static struct inet_protosw l2tp_ip6_protosw = {
+ 	.no_check	= 0,
+ };
+ 
+-static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
++static const struct inet6_protocol l2tp_ip6_protocol = {
+ 	.handler	= l2tp_ip6_recv,
+ };
+ 
+diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
+index 1a3c7e0..80f8b0c 100644
+--- a/net/llc/llc_proc.c
++++ b/net/llc/llc_proc.c
+@@ -247,7 +247,7 @@ int __init llc_proc_init(void)
+ 	int rc = -ENOMEM;
+ 	struct proc_dir_entry *p;
+ 
+-	llc_proc_dir = proc_mkdir("llc", init_net.proc_net);
++	llc_proc_dir = proc_mkdir_restrict("llc", init_net.proc_net);
+ 	if (!llc_proc_dir)
+ 		goto out;
+ 
+diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
+index 453e974..b3a43a5 100644
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -839,7 +839,7 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
+ 			ret = ieee80211_vif_use_channel(sdata, chandef,
+ 					IEEE80211_CHANCTX_EXCLUSIVE);
+ 		}
+-	} else if (local->open_count == local->monitors) {
++	} else if (local_read(&local->open_count) == local->monitors) {
+ 		local->_oper_chandef = *chandef;
+ 		ieee80211_hw_config(local, 0);
+ 	}
+@@ -3356,7 +3356,7 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
+ 		else
+ 			local->probe_req_reg--;
+ 
+-		if (!local->open_count)
++		if (!local_read(&local->open_count))
+ 			break;
+ 
+ 		ieee80211_queue_work(&local->hw, &local->reconfig_filter);
+@@ -3819,8 +3819,8 @@ static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
+ 	if (chanctx_conf) {
+ 		*chandef = chanctx_conf->def;
+ 		ret = 0;
+-	} else if (local->open_count > 0 &&
+-		   local->open_count == local->monitors &&
++	} else if (local_read(&local->open_count) > 0 &&
++		   local_read(&local->open_count) == local->monitors &&
+ 		   sdata->vif.type == NL80211_IFTYPE_MONITOR) {
+ 		if (local->use_chanctx)
+ 			*chandef = local->monitor_chandef;
+diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
+index e278c64..f6d3f3d 100644
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -28,6 +28,7 @@
+ #include <net/ieee80211_radiotap.h>
+ #include <net/cfg80211.h>
+ #include <net/mac80211.h>
++#include <asm/local.h>
+ #include "key.h"
+ #include "sta_info.h"
+ #include "debug.h"
+@@ -1006,7 +1007,7 @@ struct ieee80211_local {
+ 	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
+ 	spinlock_t queue_stop_reason_lock;
+ 
+-	int open_count;
++	local_t open_count;
+ 	int monitors, cooked_mntrs;
+ 	/* number of interfaces with corresponding FIF_ flags */
+ 	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
+diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
+index 06f5de4..f2e0437 100644
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -529,7 +529,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
+ 		break;
+ 	}
+ 
+-	if (local->open_count == 0) {
++	if (local_read(&local->open_count) == 0) {
+ 		res = drv_start(local);
+ 		if (res)
+ 			goto err_del_bss;
+@@ -576,7 +576,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
+ 			res = drv_add_interface(local, sdata);
+ 			if (res)
+ 				goto err_stop;
+-		} else if (local->monitors == 0 && local->open_count == 0) {
++		} else if (local->monitors == 0 && local_read(&local->open_count) == 0) {
+ 			res = ieee80211_add_virtual_monitor(local);
+ 			if (res)
+ 				goto err_stop;
+@@ -685,7 +685,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
+ 		atomic_inc(&local->iff_promiscs);
+ 
+ 	if (coming_up)
+-		local->open_count++;
++		local_inc(&local->open_count);
+ 
+ 	if (hw_reconf_flags)
+ 		ieee80211_hw_config(local, hw_reconf_flags);
+@@ -723,7 +723,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
+  err_del_interface:
+ 	drv_remove_interface(local, sdata);
+  err_stop:
+-	if (!local->open_count)
++	if (!local_read(&local->open_count))
+ 		drv_stop(local);
+  err_del_bss:
+ 	sdata->bss = NULL;
+@@ -876,7 +876,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
+ 	}
+ 
+ 	if (going_down)
+-		local->open_count--;
++		local_dec(&local->open_count);
+ 
+ 	switch (sdata->vif.type) {
+ 	case NL80211_IFTYPE_AP_VLAN:
+@@ -935,7 +935,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
+ 	}
+ 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+ 
+-	if (local->open_count == 0)
++	if (local_read(&local->open_count) == 0)
+ 		ieee80211_clear_tx_pending(local);
+ 
+ 	/*
+@@ -978,7 +978,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
+ 	if (cancel_scan)
+ 		flush_delayed_work(&local->scan_work);
+ 
+-	if (local->open_count == 0) {
++	if (local_read(&local->open_count) == 0) {
+ 		ieee80211_stop_device(local);
+ 
+ 		/* no reconfiguring after stop! */
+@@ -989,7 +989,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
+ 	ieee80211_configure_filter(local);
+ 	ieee80211_hw_config(local, hw_reconf_flags);
+ 
+-	if (local->monitors == local->open_count)
++	if (local->monitors == local_read(&local->open_count))
+ 		ieee80211_add_virtual_monitor(local);
+ }
+ 
+diff --git a/net/mac80211/main.c b/net/mac80211/main.c
+index c7a7a86..a74f57b 100644
+--- a/net/mac80211/main.c
++++ b/net/mac80211/main.c
+@@ -174,7 +174,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
+ 		changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL |
+ 			     IEEE80211_CONF_CHANGE_POWER);
+ 
+-	if (changed && local->open_count) {
++	if (changed && local_read(&local->open_count)) {
+ 		ret = drv_config(local, changed);
+ 		/*
+ 		 * Goal:
+diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
+index d478b88..8c8d157 100644
+--- a/net/mac80211/pm.c
++++ b/net/mac80211/pm.c
+@@ -12,7 +12,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+ 	struct ieee80211_sub_if_data *sdata;
+ 	struct sta_info *sta;
+ 
+-	if (!local->open_count)
++	if (!local_read(&local->open_count))
+ 		goto suspend;
+ 
+ 	ieee80211_scan_cancel(local);
+@@ -58,7 +58,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+ 	cancel_work_sync(&local->dynamic_ps_enable_work);
+ 	del_timer_sync(&local->dynamic_ps_timer);
+ 
+-	local->wowlan = wowlan && local->open_count;
++	local->wowlan = wowlan && local_read(&local->open_count);
+ 	if (local->wowlan) {
+ 		int err = drv_suspend(local, wowlan);
+ 		if (err < 0) {
+@@ -123,7 +123,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+ 	WARN_ON(!list_empty(&local->chanctx_list));
+ 
+ 	/* stop hardware - this must stop RX */
+-	if (local->open_count)
++	if (local_read(&local->open_count))
+ 		ieee80211_stop_device(local);
+ 
+  suspend:
+diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
+index 74350c3..512e9f5 100644
+--- a/net/mac80211/rate.c
++++ b/net/mac80211/rate.c
+@@ -734,7 +734,7 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+ 
+ 	ASSERT_RTNL();
+ 
+-	if (local->open_count)
++	if (local_read(&local->open_count))
+ 		return -EBUSY;
+ 
+ 	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
+diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
+index 6ff1346..936ca9a 100644
+--- a/net/mac80211/rc80211_pid_debugfs.c
++++ b/net/mac80211/rc80211_pid_debugfs.c
+@@ -193,7 +193,7 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
+ 
+ 	spin_unlock_irqrestore(&events->lock, status);
+ 
+-	if (copy_to_user(buf, pb, p))
++	if (p > sizeof(pb) || copy_to_user(buf, pb, p))
+ 		return -EFAULT;
+ 
+ 	return p;
+diff --git a/net/mac80211/util.c b/net/mac80211/util.c
+index 6427625..afa5a5a 100644
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -1483,7 +1483,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
+ 	}
+ #endif
+ 	/* everything else happens only if HW was up & running */
+-	if (!local->open_count)
++	if (!local_read(&local->open_count))
+ 		goto wake_up;
+ 
+ 	/*
+@@ -1708,7 +1708,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
+ 	local->in_reconfig = false;
+ 	barrier();
+ 
+-	if (local->monitors == local->open_count && local->monitors > 0)
++	if (local->monitors == local_read(&local->open_count) && local->monitors > 0)
+ 		ieee80211_add_virtual_monitor(local);
+ 
+ 	/*
+diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
+index e9410d1..77b6378 100644
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -1081,6 +1081,16 @@ config NETFILTER_XT_MATCH_ESP
+ 
+ 	  To compile it as a module, choose M here.  If unsure, say N.
+ 
++config NETFILTER_XT_MATCH_GRADM
++	tristate '"gradm" match support'
++	depends on NETFILTER_XTABLES && NETFILTER_ADVANCED
++	depends on GRKERNSEC && !GRKERNSEC_NO_RBAC
++	---help---
++	  The gradm match allows to match on grsecurity RBAC being enabled.
++	  It is useful when iptables rules are applied early on bootup to
++	  prevent connections to the machine (except from a trusted host)
++	  while the RBAC system is disabled.
++
+ config NETFILTER_XT_MATCH_HASHLIMIT
+ 	tristate '"hashlimit" match support'
+ 	depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
+diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
+index bffdad7..f9317d1 100644
+--- a/net/netfilter/Makefile
++++ b/net/netfilter/Makefile
+@@ -133,6 +133,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_DEVGROUP) += xt_devgroup.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_DSCP) += xt_dscp.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_ECN) += xt_ecn.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_ESP) += xt_esp.o
++obj-$(CONFIG_NETFILTER_XT_MATCH_GRADM) += xt_gradm.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_HASHLIMIT) += xt_hashlimit.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_HL) += xt_hl.o
+diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
+index 53ea164..c518529 100644
+--- a/net/netfilter/ipset/ip_set_core.c
++++ b/net/netfilter/ipset/ip_set_core.c
+@@ -1928,7 +1928,7 @@ done:
+ 	return ret;
+ }
+ 
+-static struct nf_sockopt_ops so_set __read_mostly = {
++static struct nf_sockopt_ops so_set = {
+ 	.pf		= PF_INET,
+ 	.get_optmin	= SO_IP_SET,
+ 	.get_optmax	= SO_IP_SET + 1,
+diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
+index 610e19c..08d0c3f 100644
+--- a/net/netfilter/ipvs/ip_vs_conn.c
++++ b/net/netfilter/ipvs/ip_vs_conn.c
+@@ -556,7 +556,7 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
+ 	/* Increase the refcnt counter of the dest */
+ 	ip_vs_dest_hold(dest);
+ 
+-	conn_flags = atomic_read(&dest->conn_flags);
++	conn_flags = atomic_read_unchecked(&dest->conn_flags);
+ 	if (cp->protocol != IPPROTO_UDP)
+ 		conn_flags &= ~IP_VS_CONN_F_ONE_PACKET;
+ 	flags = cp->flags;
+@@ -899,7 +899,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p,
+ 
+ 	cp->control = NULL;
+ 	atomic_set(&cp->n_control, 0);
+-	atomic_set(&cp->in_pkts, 0);
++	atomic_set_unchecked(&cp->in_pkts, 0);
+ 
+ 	cp->packet_xmit = NULL;
+ 	cp->app = NULL;
+@@ -1187,7 +1187,7 @@ static inline int todrop_entry(struct ip_vs_conn *cp)
+ 
+ 	/* Don't drop the entry if its number of incoming packets is not
+ 	   located in [0, 8] */
+-	i = atomic_read(&cp->in_pkts);
++	i = atomic_read_unchecked(&cp->in_pkts);
+ 	if (i > 8 || i < 0) return 0;
+ 
+ 	if (!todrop_rate[i]) return 0;
+diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
+index 847d2a2..4dc8ae3 100644
+--- a/net/netfilter/ipvs/ip_vs_core.c
++++ b/net/netfilter/ipvs/ip_vs_core.c
+@@ -567,7 +567,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
+ 		ret = cp->packet_xmit(skb, cp, pd->pp, iph);
+ 		/* do not touch skb anymore */
+ 
+-		atomic_inc(&cp->in_pkts);
++		atomic_inc_unchecked(&cp->in_pkts);
+ 		ip_vs_conn_put(cp);
+ 		return ret;
+ 	}
+@@ -1722,7 +1722,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
+ 	if (cp->flags & IP_VS_CONN_F_ONE_PACKET)
+ 		pkts = sysctl_sync_threshold(ipvs);
+ 	else
+-		pkts = atomic_add_return(1, &cp->in_pkts);
++		pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
+ 
+ 	if (ipvs->sync_state & IP_VS_STATE_MASTER)
+ 		ip_vs_sync_conn(net, cp, pkts);
+diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
+index 35be035..50f8834 100644
+--- a/net/netfilter/ipvs/ip_vs_ctl.c
++++ b/net/netfilter/ipvs/ip_vs_ctl.c
+@@ -794,7 +794,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
+ 		 */
+ 		ip_vs_rs_hash(ipvs, dest);
+ 	}
+-	atomic_set(&dest->conn_flags, conn_flags);
++	atomic_set_unchecked(&dest->conn_flags, conn_flags);
+ 
+ 	/* bind the service */
+ 	old_svc = rcu_dereference_protected(dest->svc, 1);
+@@ -1654,7 +1654,7 @@ proc_do_sync_ports(struct ctl_table *table, int write,
+  *	align with netns init in ip_vs_control_net_init()
+  */
+ 
+-static struct ctl_table vs_vars[] = {
++static ctl_table_no_const vs_vars[] __read_only = {
+ 	{
+ 		.procname	= "amemthresh",
+ 		.maxlen		= sizeof(int),
+@@ -2075,7 +2075,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
+ 					   "      %-7s %-6d %-10d %-10d\n",
+ 					   &dest->addr.in6,
+ 					   ntohs(dest->port),
+-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
++					   ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
+ 					   atomic_read(&dest->weight),
+ 					   atomic_read(&dest->activeconns),
+ 					   atomic_read(&dest->inactconns));
+@@ -2086,7 +2086,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
+ 					   "%-7s %-6d %-10d %-10d\n",
+ 					   ntohl(dest->addr.ip),
+ 					   ntohs(dest->port),
+-					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
++					   ip_vs_fwd_name(atomic_read_unchecked(&dest->conn_flags)),
+ 					   atomic_read(&dest->weight),
+ 					   atomic_read(&dest->activeconns),
+ 					   atomic_read(&dest->inactconns));
+@@ -2564,7 +2564,7 @@ __ip_vs_get_dest_entries(struct net *net, const struct ip_vs_get_dests *get,
+ 
+ 			entry.addr = dest->addr.ip;
+ 			entry.port = dest->port;
+-			entry.conn_flags = atomic_read(&dest->conn_flags);
++			entry.conn_flags = atomic_read_unchecked(&dest->conn_flags);
+ 			entry.weight = atomic_read(&dest->weight);
+ 			entry.u_threshold = dest->u_threshold;
+ 			entry.l_threshold = dest->l_threshold;
+@@ -3107,7 +3107,7 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
+ 	if (nla_put(skb, IPVS_DEST_ATTR_ADDR, sizeof(dest->addr), &dest->addr) ||
+ 	    nla_put_be16(skb, IPVS_DEST_ATTR_PORT, dest->port) ||
+ 	    nla_put_u32(skb, IPVS_DEST_ATTR_FWD_METHOD,
+-			(atomic_read(&dest->conn_flags) &
++			(atomic_read_unchecked(&dest->conn_flags) &
+ 			 IP_VS_CONN_F_FWD_MASK)) ||
+ 	    nla_put_u32(skb, IPVS_DEST_ATTR_WEIGHT,
+ 			atomic_read(&dest->weight)) ||
+@@ -3580,7 +3580,7 @@ out:
+ }
+ 
+ 
+-static const struct genl_ops ip_vs_genl_ops[] __read_mostly = {
++static const struct genl_ops ip_vs_genl_ops[] = {
+ 	{
+ 		.cmd	= IPVS_CMD_NEW_SERVICE,
+ 		.flags	= GENL_ADMIN_PERM,
+@@ -3697,7 +3697,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
+ {
+ 	int idx;
+ 	struct netns_ipvs *ipvs = net_ipvs(net);
+-	struct ctl_table *tbl;
++	ctl_table_no_const *tbl;
+ 
+ 	atomic_set(&ipvs->dropentry, 0);
+ 	spin_lock_init(&ipvs->dropentry_lock);
+diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
+index ca056a3..9cf01ef 100644
+--- a/net/netfilter/ipvs/ip_vs_lblc.c
++++ b/net/netfilter/ipvs/ip_vs_lblc.c
+@@ -118,7 +118,7 @@ struct ip_vs_lblc_table {
+  *      IPVS LBLC sysctl table
+  */
+ #ifdef CONFIG_SYSCTL
+-static struct ctl_table vs_vars_table[] = {
++static ctl_table_no_const vs_vars_table[] __read_only = {
+ 	{
+ 		.procname	= "lblc_expiration",
+ 		.data		= NULL,
+diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
+index 3f21a2f..a112e85 100644
+--- a/net/netfilter/ipvs/ip_vs_lblcr.c
++++ b/net/netfilter/ipvs/ip_vs_lblcr.c
+@@ -289,7 +289,7 @@ struct ip_vs_lblcr_table {
+  *      IPVS LBLCR sysctl table
+  */
+ 
+-static struct ctl_table vs_vars_table[] = {
++static ctl_table_no_const vs_vars_table[] __read_only = {
+ 	{
+ 		.procname	= "lblcr_expiration",
+ 		.data		= NULL,
+diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
+index a8027e7..f5521e7 100644
+--- a/net/netfilter/ipvs/ip_vs_sync.c
++++ b/net/netfilter/ipvs/ip_vs_sync.c
+@@ -609,7 +609,7 @@ static void ip_vs_sync_conn_v0(struct net *net, struct ip_vs_conn *cp,
+ 	cp = cp->control;
+ 	if (cp) {
+ 		if (cp->flags & IP_VS_CONN_F_TEMPLATE)
+-			pkts = atomic_add_return(1, &cp->in_pkts);
++			pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
+ 		else
+ 			pkts = sysctl_sync_threshold(ipvs);
+ 		ip_vs_sync_conn(net, cp->control, pkts);
+@@ -771,7 +771,7 @@ control:
+ 	if (!cp)
+ 		return;
+ 	if (cp->flags & IP_VS_CONN_F_TEMPLATE)
+-		pkts = atomic_add_return(1, &cp->in_pkts);
++		pkts = atomic_add_return_unchecked(1, &cp->in_pkts);
+ 	else
+ 		pkts = sysctl_sync_threshold(ipvs);
+ 	goto sloop;
+@@ -897,7 +897,7 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param,
+ 
+ 	if (opt)
+ 		memcpy(&cp->in_seq, opt, sizeof(*opt));
+-	atomic_set(&cp->in_pkts, sysctl_sync_threshold(ipvs));
++	atomic_set_unchecked(&cp->in_pkts, sysctl_sync_threshold(ipvs));
+ 	cp->state = state;
+ 	cp->old_state = cp->state;
+ 	/*
+diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
+index 1692e75..0d7c8e3 100644
+--- a/net/netfilter/ipvs/ip_vs_xmit.c
++++ b/net/netfilter/ipvs/ip_vs_xmit.c
+@@ -1102,7 +1102,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+ 		else
+ 			rc = NF_ACCEPT;
+ 		/* do not touch skb anymore */
+-		atomic_inc(&cp->in_pkts);
++		atomic_inc_unchecked(&cp->in_pkts);
+ 		goto out;
+ 	}
+ 
+@@ -1194,7 +1194,7 @@ ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
+ 		else
+ 			rc = NF_ACCEPT;
+ 		/* do not touch skb anymore */
+-		atomic_inc(&cp->in_pkts);
++		atomic_inc_unchecked(&cp->in_pkts);
+ 		goto out;
+ 	}
+ 
+diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
+index a4b5e2a..13b1de3 100644
+--- a/net/netfilter/nf_conntrack_acct.c
++++ b/net/netfilter/nf_conntrack_acct.c
+@@ -62,7 +62,7 @@ static struct nf_ct_ext_type acct_extend __read_mostly = {
+ #ifdef CONFIG_SYSCTL
+ static int nf_conntrack_acct_init_sysctl(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(acct_sysctl_table, sizeof(acct_sysctl_table),
+ 			GFP_KERNEL);
+diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
+index 356bef5..163b56a 100644
+--- a/net/netfilter/nf_conntrack_core.c
++++ b/net/netfilter/nf_conntrack_core.c
+@@ -1627,6 +1627,10 @@ void nf_conntrack_init_end(void)
+ #define DYING_NULLS_VAL		((1<<30)+1)
+ #define TEMPLATE_NULLS_VAL	((1<<30)+2)
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++static atomic_unchecked_t conntrack_cache_id = ATOMIC_INIT(0);
++#endif
++
+ int nf_conntrack_init_net(struct net *net)
+ {
+ 	int ret;
+@@ -1641,7 +1645,11 @@ int nf_conntrack_init_net(struct net *net)
+ 		goto err_stat;
+ 	}
+ 
++#ifdef CONFIG_GRKERNSEC_HIDESYM
++	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%08x", atomic_inc_return_unchecked(&conntrack_cache_id));
++#else
+ 	net->ct.slabname = kasprintf(GFP_KERNEL, "nf_conntrack_%p", net);
++#endif
+ 	if (!net->ct.slabname) {
+ 		ret = -ENOMEM;
+ 		goto err_slabname;
+diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
+index 1df1761..ce8b88a 100644
+--- a/net/netfilter/nf_conntrack_ecache.c
++++ b/net/netfilter/nf_conntrack_ecache.c
+@@ -188,7 +188,7 @@ static struct nf_ct_ext_type event_extend __read_mostly = {
+ #ifdef CONFIG_SYSCTL
+ static int nf_conntrack_event_init_sysctl(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(event_sysctl_table, sizeof(event_sysctl_table),
+ 			GFP_KERNEL);
+diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
+index 974a2a4..52cc6ff 100644
+--- a/net/netfilter/nf_conntrack_helper.c
++++ b/net/netfilter/nf_conntrack_helper.c
+@@ -57,7 +57,7 @@ static struct ctl_table helper_sysctl_table[] = {
+ 
+ static int nf_conntrack_helper_init_sysctl(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(helper_sysctl_table, sizeof(helper_sysctl_table),
+ 			GFP_KERNEL);
+diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
+index b65d586..beec902 100644
+--- a/net/netfilter/nf_conntrack_proto.c
++++ b/net/netfilter/nf_conntrack_proto.c
+@@ -52,7 +52,7 @@ nf_ct_register_sysctl(struct net *net,
+ 
+ static void
+ nf_ct_unregister_sysctl(struct ctl_table_header **header,
+-			struct ctl_table **table,
++			ctl_table_no_const **table,
+ 			unsigned int users)
+ {
+ 	if (users > 0)
+diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
+index f641751..d3c5b51 100644
+--- a/net/netfilter/nf_conntrack_standalone.c
++++ b/net/netfilter/nf_conntrack_standalone.c
+@@ -471,7 +471,7 @@ static struct ctl_table nf_ct_netfilter_table[] = {
+ 
+ static int nf_conntrack_standalone_init_sysctl(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
+ 			GFP_KERNEL);
+diff --git a/net/netfilter/nf_conntrack_timestamp.c b/net/netfilter/nf_conntrack_timestamp.c
+index 7a394df..bd91a8a 100644
+--- a/net/netfilter/nf_conntrack_timestamp.c
++++ b/net/netfilter/nf_conntrack_timestamp.c
+@@ -42,7 +42,7 @@ static struct nf_ct_ext_type tstamp_extend __read_mostly = {
+ #ifdef CONFIG_SYSCTL
+ static int nf_conntrack_tstamp_init_sysctl(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(tstamp_sysctl_table, sizeof(tstamp_sysctl_table),
+ 			GFP_KERNEL);
+diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
+index 85296d4..8becdec 100644
+--- a/net/netfilter/nf_log.c
++++ b/net/netfilter/nf_log.c
+@@ -243,7 +243,7 @@ static const struct file_operations nflog_file_ops = {
+ 
+ #ifdef CONFIG_SYSCTL
+ static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
+-static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
++static ctl_table_no_const nf_log_sysctl_table[NFPROTO_NUMPROTO+1] __read_only;
+ 
+ static int nf_log_proc_dostring(struct ctl_table *table, int write,
+ 			 void __user *buffer, size_t *lenp, loff_t *ppos)
+@@ -274,14 +274,16 @@ static int nf_log_proc_dostring(struct ctl_table *table, int write,
+ 		rcu_assign_pointer(net->nf.nf_loggers[tindex], logger);
+ 		mutex_unlock(&nf_log_mutex);
+ 	} else {
++		ctl_table_no_const nf_log_table = *table;
++
+ 		mutex_lock(&nf_log_mutex);
+ 		logger = rcu_dereference_protected(net->nf.nf_loggers[tindex],
+ 						   lockdep_is_held(&nf_log_mutex));
+ 		if (!logger)
+-			table->data = "NONE";
++			nf_log_table.data = "NONE";
+ 		else
+-			table->data = logger->name;
+-		r = proc_dostring(table, write, buffer, lenp, ppos);
++			nf_log_table.data = logger->name;
++		r = proc_dostring(&nf_log_table, write, buffer, lenp, ppos);
+ 		mutex_unlock(&nf_log_mutex);
+ 	}
+ 
+diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
+index f042ae5..30ea486 100644
+--- a/net/netfilter/nf_sockopt.c
++++ b/net/netfilter/nf_sockopt.c
+@@ -45,7 +45,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
+ 		}
+ 	}
+ 
+-	list_add(&reg->list, &nf_sockopts);
++	pax_list_add((struct list_head *)&reg->list, &nf_sockopts);
+ out:
+ 	mutex_unlock(&nf_sockopt_mutex);
+ 	return ret;
+@@ -55,7 +55,7 @@ EXPORT_SYMBOL(nf_register_sockopt);
+ void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
+ {
+ 	mutex_lock(&nf_sockopt_mutex);
+-	list_del(&reg->list);
++	pax_list_del((struct list_head *)&reg->list);
+ 	mutex_unlock(&nf_sockopt_mutex);
+ }
+ EXPORT_SYMBOL(nf_unregister_sockopt);
+diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
+index c68e5e0..3bed3f0 100644
+--- a/net/netfilter/nf_tables_api.c
++++ b/net/netfilter/nf_tables_api.c
+@@ -152,8 +152,8 @@ nf_tables_chain_type_lookup(const struct nft_af_info *afi,
+ #ifdef CONFIG_MODULES
+ 	if (autoload) {
+ 		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+-		request_module("nft-chain-%u-%*.s", afi->family,
+-			       nla_len(nla)-1, (const char *)nla_data(nla));
++		request_module("nft-chain-%u-%.*s", afi->family,
++			       nla_len(nla), (const char *)nla_data(nla));
+ 		nfnl_lock(NFNL_SUBSYS_NFTABLES);
+ 		type = __nf_tables_chain_type_lookup(afi->family, nla);
+ 		if (type != NULL)
+@@ -789,9 +789,11 @@ nf_tables_counters(struct nft_base_chain *chain, const struct nlattr *attr)
+ 	/* Restore old counters on this cpu, no problem. Per-cpu statistics
+ 	 * are not exposed to userspace.
+ 	 */
++	preempt_disable();
+ 	stats = this_cpu_ptr(newstats);
+ 	stats->bytes = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_BYTES]));
+ 	stats->pkts = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_PACKETS]));
++	preempt_enable();
+ 
+ 	if (chain->stats) {
+ 		/* nfnl_lock is held, add some nfnl function for this, later */
+diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
+index 6ff12a1..d1815b6 100644
+--- a/net/netfilter/nfnetlink_log.c
++++ b/net/netfilter/nfnetlink_log.c
+@@ -83,7 +83,7 @@ static int nfnl_log_net_id __read_mostly;
+ struct nfnl_log_net {
+ 	spinlock_t instances_lock;
+ 	struct hlist_head instance_table[INSTANCE_BUCKETS];
+-	atomic_t global_seq;
++	atomic_unchecked_t global_seq;
+ };
+ 
+ static struct nfnl_log_net *nfnl_log_pernet(struct net *net)
+@@ -566,7 +566,7 @@ __build_packet_message(struct nfnl_log_net *log,
+ 	/* global sequence number */
+ 	if ((inst->flags & NFULNL_CFG_F_SEQ_GLOBAL) &&
+ 	    nla_put_be32(inst->skb, NFULA_SEQ_GLOBAL,
+-			 htonl(atomic_inc_return(&log->global_seq))))
++			 htonl(atomic_inc_return_unchecked(&log->global_seq))))
+ 		goto nla_put_failure;
+ 
+ 	if (data_len) {
+diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
+index 108120f..5b169db 100644
+--- a/net/netfilter/nfnetlink_queue_core.c
++++ b/net/netfilter/nfnetlink_queue_core.c
+@@ -665,7 +665,7 @@ nfqnl_enqueue_packet(struct nf_queue_entry *entry, unsigned int queuenum)
+ 	 * returned by nf_queue.  For instance, callers rely on -ECANCELED to
+ 	 * mean 'ignore this hook'.
+ 	 */
+-	if (IS_ERR(segs))
++	if (IS_ERR_OR_NULL(segs))
+ 		goto out_err;
+ 	queued = 0;
+ 	err = 0;
+diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
+index 7350723..af7fa0d 100644
+--- a/net/netfilter/nft_compat.c
++++ b/net/netfilter/nft_compat.c
+@@ -216,7 +216,7 @@ target_dump_info(struct sk_buff *skb, const struct xt_target *t, const void *in)
+ 		/* We want to reuse existing compat_to_user */
+ 		old_fs = get_fs();
+ 		set_fs(KERNEL_DS);
+-		t->compat_to_user(out, in);
++		t->compat_to_user((void __force_user *)out, in);
+ 		set_fs(old_fs);
+ 		ret = nla_put(skb, NFTA_TARGET_INFO, XT_ALIGN(t->targetsize), out);
+ 		kfree(out);
+@@ -283,14 +283,7 @@ static void nft_match_eval(const struct nft_expr *expr,
+ 		return;
+ 	}
+ 
+-	switch(ret) {
+-	case true:
+-		data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
+-		break;
+-	case false:
+-		data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+-		break;
+-	}
++	data[NFT_REG_VERDICT].verdict = ret ? NFT_CONTINUE : NFT_BREAK;
+ }
+ 
+ static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
+@@ -403,7 +396,7 @@ match_dump_info(struct sk_buff *skb, const struct xt_match *m, const void *in)
+ 		/* We want to reuse existing compat_to_user */
+ 		old_fs = get_fs();
+ 		set_fs(KERNEL_DS);
+-		m->compat_to_user(out, in);
++		m->compat_to_user((void __force_user *)out, in);
+ 		set_fs(old_fs);
+ 		ret = nla_put(skb, NFTA_MATCH_INFO, XT_ALIGN(m->matchsize), out);
+ 		kfree(out);
+diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c
+index c40b269..b73fd7d 100644
+--- a/net/netfilter/xt_connlimit.c
++++ b/net/netfilter/xt_connlimit.c
+@@ -274,25 +274,38 @@ static void connlimit_mt_destroy(const struct xt_mtdtor_param *par)
+ 	kfree(info->data);
+ }
+ 
+-static struct xt_match connlimit_mt_reg __read_mostly = {
+-	.name       = "connlimit",
+-	.revision   = 1,
+-	.family     = NFPROTO_UNSPEC,
+-	.checkentry = connlimit_mt_check,
+-	.match      = connlimit_mt,
+-	.matchsize  = sizeof(struct xt_connlimit_info),
+-	.destroy    = connlimit_mt_destroy,
+-	.me         = THIS_MODULE,
++static struct xt_match connlimit_mt_reg[] __read_mostly = {
++	{
++		.name       = "connlimit",
++		.revision   = 0,
++		.family     = NFPROTO_UNSPEC,
++		.checkentry = connlimit_mt_check,
++		.match      = connlimit_mt,
++		.matchsize  = sizeof(struct xt_connlimit_info),
++		.destroy    = connlimit_mt_destroy,
++		.me         = THIS_MODULE,
++	},
++	{
++		.name       = "connlimit",
++		.revision   = 1,
++		.family     = NFPROTO_UNSPEC,
++		.checkentry = connlimit_mt_check,
++		.match      = connlimit_mt,
++		.matchsize  = sizeof(struct xt_connlimit_info),
++		.destroy    = connlimit_mt_destroy,
++		.me         = THIS_MODULE,
++	},
+ };
+ 
+ static int __init connlimit_mt_init(void)
+ {
+-	return xt_register_match(&connlimit_mt_reg);
++	return xt_register_matches(connlimit_mt_reg,
++	       ARRAY_SIZE(connlimit_mt_reg));
+ }
+ 
+ static void __exit connlimit_mt_exit(void)
+ {
+-	xt_unregister_match(&connlimit_mt_reg);
++	xt_unregister_matches(connlimit_mt_reg, ARRAY_SIZE(connlimit_mt_reg));
+ }
+ 
+ module_init(connlimit_mt_init);
+diff --git a/net/netfilter/xt_gradm.c b/net/netfilter/xt_gradm.c
+new file mode 100644
+index 0000000..c566332
+--- /dev/null
++++ b/net/netfilter/xt_gradm.c
+@@ -0,0 +1,51 @@
++/*
++ *	gradm match for netfilter
++ *	Copyright © Zbigniew Krzystolik, 2010
++ *
++ *	This program is free software; you can redistribute it and/or modify
++ *	it under the terms of the GNU General Public License; either version
++ *	2 or 3 as published by the Free Software Foundation.
++ */
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter/x_tables.h>
++#include <linux/grsecurity.h>
++#include <linux/netfilter/xt_gradm.h>
++
++static bool
++gradm_mt(const struct sk_buff *skb, struct xt_action_param *par)
++{
++	const struct xt_gradm_mtinfo *info = par->matchinfo;
++	bool retval = false;
++	if (gr_acl_is_enabled())
++		retval = true;
++	return retval ^ info->invflags;
++}
++
++static struct xt_match gradm_mt_reg __read_mostly = {
++		.name       = "gradm",
++		.revision   = 0,
++		.family     = NFPROTO_UNSPEC,
++		.match      = gradm_mt,
++		.matchsize  = XT_ALIGN(sizeof(struct xt_gradm_mtinfo)),
++		.me         = THIS_MODULE,
++};
++
++static int __init gradm_mt_init(void)
++{
++	return xt_register_match(&gradm_mt_reg);
++}
++
++static void __exit gradm_mt_exit(void)
++{
++	xt_unregister_match(&gradm_mt_reg);
++}
++
++module_init(gradm_mt_init);
++module_exit(gradm_mt_exit);
++MODULE_AUTHOR("Zbigniew Krzystolik <zbyniu@destrukcja.pl>");
++MODULE_DESCRIPTION("Xtables: Grsecurity RBAC match");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("ipt_gradm");
++MODULE_ALIAS("ip6t_gradm");
+diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
+index 47dc683..2e0d52c 100644
+--- a/net/netfilter/xt_hashlimit.c
++++ b/net/netfilter/xt_hashlimit.c
+@@ -871,11 +871,11 @@ static int __net_init hashlimit_proc_net_init(struct net *net)
+ {
+ 	struct hashlimit_net *hashlimit_net = hashlimit_pernet(net);
+ 
+-	hashlimit_net->ipt_hashlimit = proc_mkdir("ipt_hashlimit", net->proc_net);
++	hashlimit_net->ipt_hashlimit = proc_mkdir_restrict("ipt_hashlimit", net->proc_net);
+ 	if (!hashlimit_net->ipt_hashlimit)
+ 		return -ENOMEM;
+ #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
+-	hashlimit_net->ip6t_hashlimit = proc_mkdir("ip6t_hashlimit", net->proc_net);
++	hashlimit_net->ip6t_hashlimit = proc_mkdir_restrict("ip6t_hashlimit", net->proc_net);
+ 	if (!hashlimit_net->ip6t_hashlimit) {
+ 		remove_proc_entry("ipt_hashlimit", net->proc_net);
+ 		return -ENOMEM;
+diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
+index 1e657cf..1eb1c34 100644
+--- a/net/netfilter/xt_recent.c
++++ b/net/netfilter/xt_recent.c
+@@ -618,7 +618,7 @@ static int __net_init recent_proc_net_init(struct net *net)
+ {
+ 	struct recent_net *recent_net = recent_pernet(net);
+ 
+-	recent_net->xt_recent = proc_mkdir("xt_recent", net->proc_net);
++	recent_net->xt_recent = proc_mkdir_restrict("xt_recent", net->proc_net);
+ 	if (!recent_net->xt_recent)
+ 		return -ENOMEM;
+ 	return 0;
+diff --git a/net/netfilter/xt_statistic.c b/net/netfilter/xt_statistic.c
+index 11de55e..f25e448 100644
+--- a/net/netfilter/xt_statistic.c
++++ b/net/netfilter/xt_statistic.c
+@@ -19,7 +19,7 @@
+ #include <linux/module.h>
+ 
+ struct xt_statistic_priv {
+-	atomic_t count;
++	atomic_unchecked_t count;
+ } ____cacheline_aligned_in_smp;
+ 
+ MODULE_LICENSE("GPL");
+@@ -42,9 +42,9 @@ statistic_mt(const struct sk_buff *skb, struct xt_action_param *par)
+ 		break;
+ 	case XT_STATISTIC_MODE_NTH:
+ 		do {
+-			oval = atomic_read(&info->master->count);
++			oval = atomic_read_unchecked(&info->master->count);
+ 			nval = (oval == info->u.nth.every) ? 0 : oval + 1;
+-		} while (atomic_cmpxchg(&info->master->count, oval, nval) != oval);
++		} while (atomic_cmpxchg_unchecked(&info->master->count, oval, nval) != oval);
+ 		if (nval == 0)
+ 			ret = !ret;
+ 		break;
+@@ -64,7 +64,7 @@ static int statistic_mt_check(const struct xt_mtchk_param *par)
+ 	info->master = kzalloc(sizeof(*info->master), GFP_KERNEL);
+ 	if (info->master == NULL)
+ 		return -ENOMEM;
+-	atomic_set(&info->master->count, info->u.nth.count);
++	atomic_set_unchecked(&info->master->count, info->u.nth.count);
+ 
+ 	return 0;
+ }
+diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
+index a0b0ea9..62f0bc3 100644
+--- a/net/netlink/af_netlink.c
++++ b/net/netlink/af_netlink.c
+@@ -257,7 +257,7 @@ static void netlink_overrun(struct sock *sk)
+ 			sk->sk_error_report(sk);
+ 		}
+ 	}
+-	atomic_inc(&sk->sk_drops);
++	atomic_inc_unchecked(&sk->sk_drops);
+ }
+ 
+ static void netlink_rcv_wake(struct sock *sk)
+@@ -2981,7 +2981,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v)
+ 			   sk_wmem_alloc_get(s),
+ 			   nlk->cb_running,
+ 			   atomic_read(&s->sk_refcnt),
+-			   atomic_read(&s->sk_drops),
++			   atomic_read_unchecked(&s->sk_drops),
+ 			   sock_i_ino(s)
+ 			);
+ 
+diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
+index b74aa07..d41926e 100644
+--- a/net/netrom/af_netrom.c
++++ b/net/netrom/af_netrom.c
+@@ -850,7 +850,6 @@ static int nr_getname(struct socket *sock, struct sockaddr *uaddr,
+ 		*uaddr_len = sizeof(struct full_sockaddr_ax25);
+ 	} else {
+ 		sax->fsa_ax25.sax25_family = AF_NETROM;
+-		sax->fsa_ax25.sax25_ndigis = 0;
+ 		sax->fsa_ax25.sax25_call   = nr->source_addr;
+ 		*uaddr_len = sizeof(struct sockaddr_ax25);
+ 	}
+diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
+index 270b77d..0a9d0981 100644
+--- a/net/openvswitch/datapath.c
++++ b/net/openvswitch/datapath.c
+@@ -314,6 +314,8 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
+ 	segs = __skb_gso_segment(skb, NETIF_F_SG, false);
+ 	if (IS_ERR(segs))
+ 		return PTR_ERR(segs);
++	if (segs == NULL)
++		return -EINVAL;
+ 
+ 	/* Queue all of the segments. */
+ 	skb = segs;
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index 48b1817..3b2192f 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -1264,16 +1264,6 @@ static void packet_sock_destruct(struct sock *sk)
+ 	sk_refcnt_debug_dec(sk);
+ }
+ 
+-static int fanout_rr_next(struct packet_fanout *f, unsigned int num)
+-{
+-	int x = atomic_read(&f->rr_cur) + 1;
+-
+-	if (x >= num)
+-		x = 0;
+-
+-	return x;
+-}
+-
+ static unsigned int fanout_demux_hash(struct packet_fanout *f,
+ 				      struct sk_buff *skb,
+ 				      unsigned int num)
+@@ -1285,13 +1275,9 @@ static unsigned int fanout_demux_lb(struct packet_fanout *f,
+ 				    struct sk_buff *skb,
+ 				    unsigned int num)
+ {
+-	int cur, old;
++	unsigned int val = atomic_inc_return(&f->rr_cur);
+ 
+-	cur = atomic_read(&f->rr_cur);
+-	while ((old = atomic_cmpxchg(&f->rr_cur, cur,
+-				     fanout_rr_next(f, num))) != cur)
+-		cur = old;
+-	return cur;
++	return val % num;
+ }
+ 
+ static unsigned int fanout_demux_cpu(struct packet_fanout *f,
+@@ -1846,7 +1832,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
+ 
+ 	spin_lock(&sk->sk_receive_queue.lock);
+ 	po->stats.stats1.tp_packets++;
+-	skb->dropcount = atomic_read(&sk->sk_drops);
++	skb->dropcount = atomic_read_unchecked(&sk->sk_drops);
+ 	__skb_queue_tail(&sk->sk_receive_queue, skb);
+ 	spin_unlock(&sk->sk_receive_queue.lock);
+ 	sk->sk_data_ready(sk, skb->len);
+@@ -1855,7 +1841,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
+ drop_n_acct:
+ 	spin_lock(&sk->sk_receive_queue.lock);
+ 	po->stats.stats1.tp_drops++;
+-	atomic_inc(&sk->sk_drops);
++	atomic_inc_unchecked(&sk->sk_drops);
+ 	spin_unlock(&sk->sk_receive_queue.lock);
+ 
+ drop_n_restore:
+@@ -3462,7 +3448,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
+ 	case PACKET_HDRLEN:
+ 		if (len > sizeof(int))
+ 			len = sizeof(int);
+-		if (copy_from_user(&val, optval, len))
++		if (len > sizeof(val) || copy_from_user(&val, optval, len))
+ 			return -EFAULT;
+ 		switch (val) {
+ 		case TPACKET_V1:
+@@ -3508,7 +3494,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
+ 		len = lv;
+ 	if (put_user(len, optlen))
+ 		return -EFAULT;
+-	if (copy_to_user(optval, data, len))
++	if (len > sizeof(st) || copy_to_user(optval, data, len))
+ 		return -EFAULT;
+ 	return 0;
+ }
+diff --git a/net/phonet/pep.c b/net/phonet/pep.c
+index e774117..900b8b7 100644
+--- a/net/phonet/pep.c
++++ b/net/phonet/pep.c
+@@ -388,7 +388,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
+ 
+ 	case PNS_PEP_CTRL_REQ:
+ 		if (skb_queue_len(&pn->ctrlreq_queue) >= PNPIPE_CTRLREQ_MAX) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			break;
+ 		}
+ 		__skb_pull(skb, 4);
+@@ -409,7 +409,7 @@ static int pipe_do_rcv(struct sock *sk, struct sk_buff *skb)
+ 		}
+ 
+ 		if (pn->rx_credits == 0) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			err = -ENOBUFS;
+ 			break;
+ 		}
+@@ -580,7 +580,7 @@ static int pipe_handler_do_rcv(struct sock *sk, struct sk_buff *skb)
+ 		}
+ 
+ 		if (pn->rx_credits == 0) {
+-			atomic_inc(&sk->sk_drops);
++			atomic_inc_unchecked(&sk->sk_drops);
+ 			err = NET_RX_DROP;
+ 			break;
+ 		}
+diff --git a/net/phonet/socket.c b/net/phonet/socket.c
+index 008214a..bb68240 100644
+--- a/net/phonet/socket.c
++++ b/net/phonet/socket.c
+@@ -611,7 +611,7 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v)
+ 			from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
+ 			sock_i_ino(sk),
+ 			atomic_read(&sk->sk_refcnt), sk,
+-			atomic_read(&sk->sk_drops));
++			atomic_read_unchecked(&sk->sk_drops));
+ 	}
+ 	seq_pad(seq, '\n');
+ 	return 0;
+diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c
+index c02a8c4..3c5b600 100644
+--- a/net/phonet/sysctl.c
++++ b/net/phonet/sysctl.c
+@@ -67,7 +67,7 @@ static int proc_local_port_range(struct ctl_table *table, int write,
+ {
+ 	int ret;
+ 	int range[2] = {local_port_range[0], local_port_range[1]};
+-	struct ctl_table tmp = {
++	ctl_table_no_const tmp = {
+ 		.data = &range,
+ 		.maxlen = sizeof(range),
+ 		.mode = table->mode,
+diff --git a/net/rds/cong.c b/net/rds/cong.c
+index e5b65ac..f3b6fb7 100644
+--- a/net/rds/cong.c
++++ b/net/rds/cong.c
+@@ -78,7 +78,7 @@
+  * finds that the saved generation number is smaller than the global generation
+  * number, it wakes up the process.
+  */
+-static atomic_t		rds_cong_generation = ATOMIC_INIT(0);
++static atomic_unchecked_t		rds_cong_generation = ATOMIC_INIT(0);
+ 
+ /*
+  * Congestion monitoring
+@@ -233,7 +233,7 @@ void rds_cong_map_updated(struct rds_cong_map *map, uint64_t portmask)
+ 	rdsdebug("waking map %p for %pI4\n",
+ 	  map, &map->m_addr);
+ 	rds_stats_inc(s_cong_update_received);
+-	atomic_inc(&rds_cong_generation);
++	atomic_inc_unchecked(&rds_cong_generation);
+ 	if (waitqueue_active(&map->m_waitq))
+ 		wake_up(&map->m_waitq);
+ 	if (waitqueue_active(&rds_poll_waitq))
+@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(rds_cong_map_updated);
+ 
+ int rds_cong_updated_since(unsigned long *recent)
+ {
+-	unsigned long gen = atomic_read(&rds_cong_generation);
++	unsigned long gen = atomic_read_unchecked(&rds_cong_generation);
+ 
+ 	if (likely(*recent == gen))
+ 		return 0;
+diff --git a/net/rds/connection.c b/net/rds/connection.c
+index 378c3a6..ba4382c 100644
+--- a/net/rds/connection.c
++++ b/net/rds/connection.c
+@@ -193,6 +193,7 @@ static struct rds_connection *__rds_conn_create(__be32 laddr, __be32 faddr,
+ 	}
+ 
+ 	atomic_set(&conn->c_state, RDS_CONN_DOWN);
++	conn->c_send_gen = 0;
+ 	conn->c_reconnect_jiffies = 0;
+ 	INIT_DELAYED_WORK(&conn->c_send_w, rds_send_worker);
+ 	INIT_DELAYED_WORK(&conn->c_recv_w, rds_recv_worker);
+diff --git a/net/rds/ib.h b/net/rds/ib.h
+index 7280ab8..e04f4ea 100644
+--- a/net/rds/ib.h
++++ b/net/rds/ib.h
+@@ -128,7 +128,7 @@ struct rds_ib_connection {
+ 	/* sending acks */
+ 	unsigned long		i_ack_flags;
+ #ifdef KERNEL_HAS_ATOMIC64
+-	atomic64_t		i_ack_next;	/* next ACK to send */
++	atomic64_unchecked_t	i_ack_next;	/* next ACK to send */
+ #else
+ 	spinlock_t		i_ack_lock;	/* protect i_ack_next */
+ 	u64			i_ack_next;	/* next ACK to send */
+diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
+index 31b74f5..dc1fbfa 100644
+--- a/net/rds/ib_cm.c
++++ b/net/rds/ib_cm.c
+@@ -717,7 +717,7 @@ void rds_ib_conn_shutdown(struct rds_connection *conn)
+ 	/* Clear the ACK state */
+ 	clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
+ #ifdef KERNEL_HAS_ATOMIC64
+-	atomic64_set(&ic->i_ack_next, 0);
++	atomic64_set_unchecked(&ic->i_ack_next, 0);
+ #else
+ 	ic->i_ack_next = 0;
+ #endif
+diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
+index b7ebe23..b6352f6 100644
+--- a/net/rds/ib_recv.c
++++ b/net/rds/ib_recv.c
+@@ -596,7 +596,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
+ static void rds_ib_set_ack(struct rds_ib_connection *ic, u64 seq,
+ 				int ack_required)
+ {
+-	atomic64_set(&ic->i_ack_next, seq);
++	atomic64_set_unchecked(&ic->i_ack_next, seq);
+ 	if (ack_required) {
+ 		smp_mb__before_clear_bit();
+ 		set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
+@@ -608,7 +608,7 @@ static u64 rds_ib_get_ack(struct rds_ib_connection *ic)
+ 	clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
+ 	smp_mb__after_clear_bit();
+ 
+-	return atomic64_read(&ic->i_ack_next);
++	return atomic64_read_unchecked(&ic->i_ack_next);
+ }
+ #endif
+ 
+diff --git a/net/rds/iw.h b/net/rds/iw.h
+index 04ce3b1..48119a6 100644
+--- a/net/rds/iw.h
++++ b/net/rds/iw.h
+@@ -134,7 +134,7 @@ struct rds_iw_connection {
+ 	/* sending acks */
+ 	unsigned long		i_ack_flags;
+ #ifdef KERNEL_HAS_ATOMIC64
+-	atomic64_t		i_ack_next;	/* next ACK to send */
++	atomic64_unchecked_t	i_ack_next;	/* next ACK to send */
+ #else
+ 	spinlock_t		i_ack_lock;	/* protect i_ack_next */
+ 	u64			i_ack_next;	/* next ACK to send */
+diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
+index a91e1db..cf3053f 100644
+--- a/net/rds/iw_cm.c
++++ b/net/rds/iw_cm.c
+@@ -663,7 +663,7 @@ void rds_iw_conn_shutdown(struct rds_connection *conn)
+ 	/* Clear the ACK state */
+ 	clear_bit(IB_ACK_IN_FLIGHT, &ic->i_ack_flags);
+ #ifdef KERNEL_HAS_ATOMIC64
+-	atomic64_set(&ic->i_ack_next, 0);
++	atomic64_set_unchecked(&ic->i_ack_next, 0);
+ #else
+ 	ic->i_ack_next = 0;
+ #endif
+diff --git a/net/rds/iw_recv.c b/net/rds/iw_recv.c
+index 4503335..db566b4 100644
+--- a/net/rds/iw_recv.c
++++ b/net/rds/iw_recv.c
+@@ -427,7 +427,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
+ static void rds_iw_set_ack(struct rds_iw_connection *ic, u64 seq,
+ 				int ack_required)
+ {
+-	atomic64_set(&ic->i_ack_next, seq);
++	atomic64_set_unchecked(&ic->i_ack_next, seq);
+ 	if (ack_required) {
+ 		smp_mb__before_clear_bit();
+ 		set_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
+@@ -439,7 +439,7 @@ static u64 rds_iw_get_ack(struct rds_iw_connection *ic)
+ 	clear_bit(IB_ACK_REQUESTED, &ic->i_ack_flags);
+ 	smp_mb__after_clear_bit();
+ 
+-	return atomic64_read(&ic->i_ack_next);
++	return atomic64_read_unchecked(&ic->i_ack_next);
+ }
+ #endif
+ 
+diff --git a/net/rds/rdma.c b/net/rds/rdma.c
+index 4e37c1c..40084d8 100644
+--- a/net/rds/rdma.c
++++ b/net/rds/rdma.c
+@@ -564,12 +564,12 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
+ 
+ 	if (rs->rs_bound_addr == 0) {
+ 		ret = -ENOTCONN; /* XXX not a great errno */
+-		goto out;
++		goto out_ret;
+ 	}
+ 
+ 	if (args->nr_local > UIO_MAXIOV) {
+ 		ret = -EMSGSIZE;
+-		goto out;
++		goto out_ret;
+ 	}
+ 
+ 	/* Check whether to allocate the iovec area */
+@@ -578,7 +578,7 @@ int rds_cmsg_rdma_args(struct rds_sock *rs, struct rds_message *rm,
+ 		iovs = sock_kmalloc(rds_rs_to_sk(rs), iov_size, GFP_KERNEL);
+ 		if (!iovs) {
+ 			ret = -ENOMEM;
+-			goto out;
++			goto out_ret;
+ 		}
+ 	}
+ 
+@@ -696,6 +696,7 @@ out:
+ 	if (iovs != iovstack)
+ 		sock_kfree_s(rds_rs_to_sk(rs), iovs, iov_size);
+ 	kfree(pages);
++out_ret:
+ 	if (ret)
+ 		rds_rdma_free_op(op);
+ 	else
+diff --git a/net/rds/rds.h b/net/rds/rds.h
+index 48f8ffc..5c46cac 100644
+--- a/net/rds/rds.h
++++ b/net/rds/rds.h
+@@ -110,6 +110,7 @@ struct rds_connection {
+ 	void			*c_transport_data;
+ 
+ 	atomic_t		c_state;
++	unsigned long		c_send_gen;
+ 	unsigned long		c_flags;
+ 	unsigned long		c_reconnect_jiffies;
+ 	struct delayed_work	c_send_w;
+@@ -449,7 +450,7 @@ struct rds_transport {
+ 	void (*sync_mr)(void *trans_private, int direction);
+ 	void (*free_mr)(void *trans_private, int invalidate);
+ 	void (*flush_mrs)(void);
+-};
++} __do_const;
+ 
+ struct rds_sock {
+ 	struct sock		rs_sk;
+diff --git a/net/rds/send.c b/net/rds/send.c
+index a82fb66..54c5c19 100644
+--- a/net/rds/send.c
++++ b/net/rds/send.c
+@@ -140,8 +140,11 @@ int rds_send_xmit(struct rds_connection *conn)
+ 	struct scatterlist *sg;
+ 	int ret = 0;
+ 	LIST_HEAD(to_be_dropped);
++	int batch_count;
++	unsigned long send_gen = 0;
+ 
+ restart:
++	batch_count = 0;
+ 
+ 	/*
+ 	 * sendmsg calls here after having queued its message on the send
+@@ -157,6 +160,17 @@ restart:
+ 	}
+ 
+ 	/*
++	 * we record the send generation after doing the xmit acquire.
++	 * if someone else manages to jump in and do some work, we'll use
++	 * this to avoid a goto restart farther down.
++	 *
++	 * The acquire_in_xmit() check above ensures that only one
++	 * caller can increment c_send_gen at any time.
++	 */
++	conn->c_send_gen++;
++	send_gen = conn->c_send_gen;
++
++	/*
+ 	 * rds_conn_shutdown() sets the conn state and then tests RDS_IN_XMIT,
+ 	 * we do the opposite to avoid races.
+ 	 */
+@@ -202,6 +216,16 @@ restart:
+ 		if (!rm) {
+ 			unsigned int len;
+ 
++			batch_count++;
++
++			/* we want to process as big a batch as we can, but
++			 * we also want to avoid softlockups.  If we've been
++			 * through a lot of messages, lets back off and see
++			 * if anyone else jumps in
++			 */
++			if (batch_count >= 1024)
++				goto over_batch;
++
+ 			spin_lock_irqsave(&conn->c_lock, flags);
+ 
+ 			if (!list_empty(&conn->c_send_queue)) {
+@@ -357,9 +381,9 @@ restart:
+ 		}
+ 	}
+ 
++over_batch:
+ 	if (conn->c_trans->xmit_complete)
+ 		conn->c_trans->xmit_complete(conn);
+-
+ 	release_in_xmit(conn);
+ 
+ 	/* Nuke any messages we decided not to retransmit. */
+@@ -380,10 +404,15 @@ restart:
+ 	 * If the transport cannot continue (i.e ret != 0), then it must
+ 	 * call us when more room is available, such as from the tx
+ 	 * completion handler.
++	 *
++	 * We have an extra generation check here so that if someone manages
++	 * to jump in after our release_in_xmit, we'll see that they have done
++	 * some work and we will skip our goto
+ 	 */
+ 	if (ret == 0) {
+ 		smp_mb();
+-		if (!list_empty(&conn->c_send_queue)) {
++		if (!list_empty(&conn->c_send_queue) &&
++		    send_gen == conn->c_send_gen) {
+ 			rds_stats_inc(s_send_lock_queue_raced);
+ 			goto restart;
+ 		}
+@@ -593,8 +622,11 @@ static void rds_send_remove_from_sock(struct list_head *messages, int status)
+ 				sock_put(rds_rs_to_sk(rs));
+ 			}
+ 			rs = rm->m_rs;
+-			sock_hold(rds_rs_to_sk(rs));
++			if (rs)
++				sock_hold(rds_rs_to_sk(rs));
+ 		}
++		if (!rs)
++			goto unlock_and_drop;
+ 		spin_lock(&rs->rs_lock);
+ 
+ 		if (test_and_clear_bit(RDS_MSG_ON_SOCK, &rm->m_flags)) {
+@@ -638,9 +670,6 @@ unlock_and_drop:
+  * queue. This means that in the TCP case, the message may not have been
+  * assigned the m_ack_seq yet - but that's fine as long as tcp_is_acked
+  * checks the RDS_MSG_HAS_ACK_SEQ bit.
+- *
+- * XXX It's not clear to me how this is safely serialized with socket
+- * destruction.  Maybe it should bail if it sees SOCK_DEAD.
+  */
+ void rds_send_drop_acked(struct rds_connection *conn, u64 ack,
+ 			 is_acked_func is_acked)
+@@ -711,6 +740,9 @@ void rds_send_drop_to(struct rds_sock *rs, struct sockaddr_in *dest)
+ 		 */
+ 		if (!test_and_clear_bit(RDS_MSG_ON_CONN, &rm->m_flags)) {
+ 			spin_unlock_irqrestore(&conn->c_lock, flags);
++			spin_lock_irqsave(&rm->m_rs_lock, flags);
++			rm->m_rs = NULL;
++			spin_unlock_irqrestore(&rm->m_rs_lock, flags);
+ 			continue;
+ 		}
+ 		list_del_init(&rm->m_conn_item);
+diff --git a/net/rds/tcp.c b/net/rds/tcp.c
+index edac9ef..16bcb98 100644
+--- a/net/rds/tcp.c
++++ b/net/rds/tcp.c
+@@ -59,7 +59,7 @@ void rds_tcp_nonagle(struct socket *sock)
+ 	int val = 1;
+ 
+ 	set_fs(KERNEL_DS);
+-	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __user *)&val,
++	sock->ops->setsockopt(sock, SOL_TCP, TCP_NODELAY, (char __force_user *)&val,
+ 			      sizeof(val));
+ 	set_fs(oldfs);
+ }
+diff --git a/net/rds/tcp_send.c b/net/rds/tcp_send.c
+index 81cf5a4..b5826ff 100644
+--- a/net/rds/tcp_send.c
++++ b/net/rds/tcp_send.c
+@@ -43,7 +43,7 @@ static void rds_tcp_cork(struct socket *sock, int val)
+ 
+ 	oldfs = get_fs();
+ 	set_fs(KERNEL_DS);
+-	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __user *)&val,
++	sock->ops->setsockopt(sock, SOL_TCP, TCP_CORK, (char __force_user *)&val,
+ 			      sizeof(val));
+ 	set_fs(oldfs);
+ }
+diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
+index e61aa60..f07cc89 100644
+--- a/net/rxrpc/af_rxrpc.c
++++ b/net/rxrpc/af_rxrpc.c
+@@ -40,7 +40,7 @@ static const struct proto_ops rxrpc_rpc_ops;
+ __be32 rxrpc_epoch;
+ 
+ /* current debugging ID */
+-atomic_t rxrpc_debug_id;
++atomic_unchecked_t rxrpc_debug_id;
+ 
+ /* count of skbs currently in use */
+ atomic_t rxrpc_n_skbs;
+diff --git a/net/rxrpc/ar-ack.c b/net/rxrpc/ar-ack.c
+index cd97a0c..0041649 100644
+--- a/net/rxrpc/ar-ack.c
++++ b/net/rxrpc/ar-ack.c
+@@ -182,7 +182,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
+ 
+ 	_enter("{%d,%d,%d,%d},",
+ 	       call->acks_hard, call->acks_unacked,
+-	       atomic_read(&call->sequence),
++	       atomic_read_unchecked(&call->sequence),
+ 	       CIRC_CNT(call->acks_head, call->acks_tail, call->acks_winsz));
+ 
+ 	stop = 0;
+@@ -206,7 +206,7 @@ static void rxrpc_resend(struct rxrpc_call *call)
+ 
+ 			/* each Tx packet has a new serial number */
+ 			sp->hdr.serial =
+-				htonl(atomic_inc_return(&call->conn->serial));
++				htonl(atomic_inc_return_unchecked(&call->conn->serial));
+ 
+ 			hdr = (struct rxrpc_header *) txb->head;
+ 			hdr->serial = sp->hdr.serial;
+@@ -410,7 +410,7 @@ static void rxrpc_rotate_tx_window(struct rxrpc_call *call, u32 hard)
+  */
+ static void rxrpc_clear_tx_window(struct rxrpc_call *call)
+ {
+-	rxrpc_rotate_tx_window(call, atomic_read(&call->sequence));
++	rxrpc_rotate_tx_window(call, atomic_read_unchecked(&call->sequence));
+ }
+ 
+ /*
+@@ -636,7 +636,7 @@ process_further:
+ 
+ 		latest = ntohl(sp->hdr.serial);
+ 		hard = ntohl(ack.firstPacket);
+-		tx = atomic_read(&call->sequence);
++		tx = atomic_read_unchecked(&call->sequence);
+ 
+ 		_proto("Rx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
+ 		       latest,
+@@ -1168,7 +1168,7 @@ void rxrpc_process_call(struct work_struct *work)
+ 	goto maybe_reschedule;
+ 
+ send_ACK_with_skew:
+-	ack.maxSkew = htons(atomic_read(&call->conn->hi_serial) -
++	ack.maxSkew = htons(atomic_read_unchecked(&call->conn->hi_serial) -
+ 			    ntohl(ack.serial));
+ send_ACK:
+ 	mtu = call->conn->trans->peer->if_mtu;
+@@ -1180,7 +1180,7 @@ send_ACK:
+ 	ackinfo.rxMTU	= htonl(5692);
+ 	ackinfo.jumbo_max = htonl(4);
+ 
+-	hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
++	hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
+ 	_proto("Tx ACK %%%u { m=%hu f=#%u p=#%u s=%%%u r=%s n=%u }",
+ 	       ntohl(hdr.serial),
+ 	       ntohs(ack.maxSkew),
+@@ -1198,7 +1198,7 @@ send_ACK:
+ send_message:
+ 	_debug("send message");
+ 
+-	hdr.serial = htonl(atomic_inc_return(&call->conn->serial));
++	hdr.serial = htonl(atomic_inc_return_unchecked(&call->conn->serial));
+ 	_proto("Tx %s %%%u", rxrpc_pkts[hdr.type], ntohl(hdr.serial));
+ send_message_2:
+ 
+diff --git a/net/rxrpc/ar-call.c b/net/rxrpc/ar-call.c
+index a3bbb36..3341fb9 100644
+--- a/net/rxrpc/ar-call.c
++++ b/net/rxrpc/ar-call.c
+@@ -83,7 +83,7 @@ static struct rxrpc_call *rxrpc_alloc_call(gfp_t gfp)
+ 	spin_lock_init(&call->lock);
+ 	rwlock_init(&call->state_lock);
+ 	atomic_set(&call->usage, 1);
+-	call->debug_id = atomic_inc_return(&rxrpc_debug_id);
++	call->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
+ 	call->state = RXRPC_CALL_CLIENT_SEND_REQUEST;
+ 
+ 	memset(&call->sock_node, 0xed, sizeof(call->sock_node));
+diff --git a/net/rxrpc/ar-connection.c b/net/rxrpc/ar-connection.c
+index 7bf5b5b..4a3bf2c 100644
+--- a/net/rxrpc/ar-connection.c
++++ b/net/rxrpc/ar-connection.c
+@@ -206,7 +206,7 @@ static struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
+ 		rwlock_init(&conn->lock);
+ 		spin_lock_init(&conn->state_lock);
+ 		atomic_set(&conn->usage, 1);
+-		conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
++		conn->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
+ 		conn->avail_calls = RXRPC_MAXCALLS;
+ 		conn->size_align = 4;
+ 		conn->header_size = sizeof(struct rxrpc_header);
+diff --git a/net/rxrpc/ar-connevent.c b/net/rxrpc/ar-connevent.c
+index e7ed43a..6afa140 100644
+--- a/net/rxrpc/ar-connevent.c
++++ b/net/rxrpc/ar-connevent.c
+@@ -109,7 +109,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
+ 
+ 	len = iov[0].iov_len + iov[1].iov_len;
+ 
+-	hdr.serial = htonl(atomic_inc_return(&conn->serial));
++	hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
+ 	_proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);
+ 
+ 	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
+diff --git a/net/rxrpc/ar-input.c b/net/rxrpc/ar-input.c
+index 529572f..c758ca7 100644
+--- a/net/rxrpc/ar-input.c
++++ b/net/rxrpc/ar-input.c
+@@ -340,9 +340,9 @@ void rxrpc_fast_process_packet(struct rxrpc_call *call, struct sk_buff *skb)
+ 	/* track the latest serial number on this connection for ACK packet
+ 	 * information */
+ 	serial = ntohl(sp->hdr.serial);
+-	hi_serial = atomic_read(&call->conn->hi_serial);
++	hi_serial = atomic_read_unchecked(&call->conn->hi_serial);
+ 	while (serial > hi_serial)
+-		hi_serial = atomic_cmpxchg(&call->conn->hi_serial, hi_serial,
++		hi_serial = atomic_cmpxchg_unchecked(&call->conn->hi_serial, hi_serial,
+ 					   serial);
+ 
+ 	/* request ACK generation for any ACK or DATA packet that requests
+diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
+index 5f43675..ca07817 100644
+--- a/net/rxrpc/ar-internal.h
++++ b/net/rxrpc/ar-internal.h
+@@ -272,8 +272,8 @@ struct rxrpc_connection {
+ 	int			error;		/* error code for local abort */
+ 	int			debug_id;	/* debug ID for printks */
+ 	unsigned int		call_counter;	/* call ID counter */
+-	atomic_t		serial;		/* packet serial number counter */
+-	atomic_t		hi_serial;	/* highest serial number received */
++	atomic_unchecked_t	serial;		/* packet serial number counter */
++	atomic_unchecked_t	hi_serial;	/* highest serial number received */
+ 	u8			avail_calls;	/* number of calls available */
+ 	u8			size_align;	/* data size alignment (for security) */
+ 	u8			header_size;	/* rxrpc + security header size */
+@@ -346,7 +346,7 @@ struct rxrpc_call {
+ 	spinlock_t		lock;
+ 	rwlock_t		state_lock;	/* lock for state transition */
+ 	atomic_t		usage;
+-	atomic_t		sequence;	/* Tx data packet sequence counter */
++	atomic_unchecked_t	sequence;	/* Tx data packet sequence counter */
+ 	u32			abort_code;	/* local/remote abort code */
+ 	enum {					/* current state of call */
+ 		RXRPC_CALL_CLIENT_SEND_REQUEST,	/* - client sending request phase */
+@@ -420,7 +420,7 @@ static inline void rxrpc_abort_call(struct rxrpc_call *call, u32 abort_code)
+  */
+ extern atomic_t rxrpc_n_skbs;
+ extern __be32 rxrpc_epoch;
+-extern atomic_t rxrpc_debug_id;
++extern atomic_unchecked_t rxrpc_debug_id;
+ extern struct workqueue_struct *rxrpc_workqueue;
+ 
+ /*
+diff --git a/net/rxrpc/ar-local.c b/net/rxrpc/ar-local.c
+index 87f7135..74d3703 100644
+--- a/net/rxrpc/ar-local.c
++++ b/net/rxrpc/ar-local.c
+@@ -45,7 +45,7 @@ struct rxrpc_local *rxrpc_alloc_local(struct sockaddr_rxrpc *srx)
+ 		spin_lock_init(&local->lock);
+ 		rwlock_init(&local->services_lock);
+ 		atomic_set(&local->usage, 1);
+-		local->debug_id = atomic_inc_return(&rxrpc_debug_id);
++		local->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
+ 		memcpy(&local->srx, srx, sizeof(*srx));
+ 	}
+ 
+diff --git a/net/rxrpc/ar-output.c b/net/rxrpc/ar-output.c
+index d0e8f1c..a3a1686 100644
+--- a/net/rxrpc/ar-output.c
++++ b/net/rxrpc/ar-output.c
+@@ -682,9 +682,9 @@ static int rxrpc_send_data(struct kiocb *iocb,
+ 			sp->hdr.cid = call->cid;
+ 			sp->hdr.callNumber = call->call_id;
+ 			sp->hdr.seq =
+-				htonl(atomic_inc_return(&call->sequence));
++				htonl(atomic_inc_return_unchecked(&call->sequence));
+ 			sp->hdr.serial =
+-				htonl(atomic_inc_return(&conn->serial));
++				htonl(atomic_inc_return_unchecked(&conn->serial));
+ 			sp->hdr.type = RXRPC_PACKET_TYPE_DATA;
+ 			sp->hdr.userStatus = 0;
+ 			sp->hdr.securityIndex = conn->security_ix;
+diff --git a/net/rxrpc/ar-peer.c b/net/rxrpc/ar-peer.c
+index bebaa43..2644591 100644
+--- a/net/rxrpc/ar-peer.c
++++ b/net/rxrpc/ar-peer.c
+@@ -72,7 +72,7 @@ static struct rxrpc_peer *rxrpc_alloc_peer(struct sockaddr_rxrpc *srx,
+ 		INIT_LIST_HEAD(&peer->error_targets);
+ 		spin_lock_init(&peer->lock);
+ 		atomic_set(&peer->usage, 1);
+-		peer->debug_id = atomic_inc_return(&rxrpc_debug_id);
++		peer->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
+ 		memcpy(&peer->srx, srx, sizeof(*srx));
+ 
+ 		rxrpc_assess_MTU_size(peer);
+diff --git a/net/rxrpc/ar-proc.c b/net/rxrpc/ar-proc.c
+index 38047f7..9f48511 100644
+--- a/net/rxrpc/ar-proc.c
++++ b/net/rxrpc/ar-proc.c
+@@ -164,8 +164,8 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
+ 		   atomic_read(&conn->usage),
+ 		   rxrpc_conn_states[conn->state],
+ 		   key_serial(conn->key),
+-		   atomic_read(&conn->serial),
+-		   atomic_read(&conn->hi_serial));
++		   atomic_read_unchecked(&conn->serial),
++		   atomic_read_unchecked(&conn->hi_serial));
+ 
+ 	return 0;
+ }
+diff --git a/net/rxrpc/ar-transport.c b/net/rxrpc/ar-transport.c
+index 92df566..87ec1bf 100644
+--- a/net/rxrpc/ar-transport.c
++++ b/net/rxrpc/ar-transport.c
+@@ -47,7 +47,7 @@ static struct rxrpc_transport *rxrpc_alloc_transport(struct rxrpc_local *local,
+ 		spin_lock_init(&trans->client_lock);
+ 		rwlock_init(&trans->conn_lock);
+ 		atomic_set(&trans->usage, 1);
+-		trans->debug_id = atomic_inc_return(&rxrpc_debug_id);
++		trans->debug_id = atomic_inc_return_unchecked(&rxrpc_debug_id);
+ 
+ 		if (peer->srx.transport.family == AF_INET) {
+ 			switch (peer->srx.transport_type) {
+diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
+index f226709..0e735a8 100644
+--- a/net/rxrpc/rxkad.c
++++ b/net/rxrpc/rxkad.c
+@@ -610,7 +610,7 @@ static int rxkad_issue_challenge(struct rxrpc_connection *conn)
+ 
+ 	len = iov[0].iov_len + iov[1].iov_len;
+ 
+-	hdr.serial = htonl(atomic_inc_return(&conn->serial));
++	hdr.serial = htonl(atomic_inc_return_unchecked(&conn->serial));
+ 	_proto("Tx CHALLENGE %%%u", ntohl(hdr.serial));
+ 
+ 	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
+@@ -660,7 +660,7 @@ static int rxkad_send_response(struct rxrpc_connection *conn,
+ 
+ 	len = iov[0].iov_len + iov[1].iov_len + iov[2].iov_len;
+ 
+-	hdr->serial = htonl(atomic_inc_return(&conn->serial));
++	hdr->serial = htonl(atomic_inc_return_unchecked(&conn->serial));
+ 	_proto("Tx RESPONSE %%%u", ntohl(hdr->serial));
+ 
+ 	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 3, len);
+diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
+index bdbdb1a..1afc85f 100644
+--- a/net/sched/cls_api.c
++++ b/net/sched/cls_api.c
+@@ -555,8 +555,9 @@ void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst,
+ }
+ EXPORT_SYMBOL(tcf_exts_change);
+ 
+-#define tcf_exts_first_act(ext) \
+-		list_first_entry(&(exts)->actions, struct tc_action, list)
++#define tcf_exts_first_act(ext)					\
++	list_first_entry_or_null(&(exts)->actions,		\
++				 struct tc_action, list)
+ 
+ int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts)
+ {
+@@ -597,7 +598,7 @@ int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts)
+ {
+ #ifdef CONFIG_NET_CLS_ACT
+ 	struct tc_action *a = tcf_exts_first_act(exts);
+-	if (tcf_action_copy_stats(skb, a, 1) < 0)
++	if (a != NULL && tcf_action_copy_stats(skb, a, 1) < 0)
+ 		return -1;
+ #endif
+ 	return 0;
+diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
+index 8e3cf49..4a8e322 100644
+--- a/net/sched/cls_bpf.c
++++ b/net/sched/cls_bpf.c
+@@ -182,6 +182,11 @@ static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp,
+ 	}
+ 
+ 	bpf_size = bpf_len * sizeof(*bpf_ops);
++	if (bpf_size != nla_len(tb[TCA_BPF_OPS])) {
++		ret = -EINVAL;
++		goto errout;
++	}
++
+ 	bpf_ops = kzalloc(bpf_size, GFP_KERNEL);
+ 	if (bpf_ops == NULL) {
+ 		ret = -ENOMEM;
+@@ -228,15 +233,21 @@ static u32 cls_bpf_grab_new_handle(struct tcf_proto *tp,
+ 				   struct cls_bpf_head *head)
+ {
+ 	unsigned int i = 0x80000000;
++	u32 handle;
+ 
+ 	do {
+ 		if (++head->hgen == 0x7FFFFFFF)
+ 			head->hgen = 1;
+ 	} while (--i > 0 && cls_bpf_get(tp, head->hgen));
+-	if (i == 0)
++
++	if (unlikely(i == 0)) {
+ 		pr_err("Insufficient number of handles\n");
++		handle = 0;
++	} else {
++		handle = head->hgen;
++	}
+ 
+-	return i;
++	return handle;
+ }
+ 
+ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
+diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
+index 2b1738e..a9d0fc9 100644
+--- a/net/sctp/ipv6.c
++++ b/net/sctp/ipv6.c
+@@ -966,7 +966,7 @@ static const struct inet6_protocol sctpv6_protocol = {
+ 	.flags        = INET6_PROTO_NOPOLICY | INET6_PROTO_FINAL,
+ };
+ 
+-static struct sctp_af sctp_af_inet6 = {
++static struct sctp_af sctp_af_inet6 __read_only = {
+ 	.sa_family	   = AF_INET6,
+ 	.sctp_xmit	   = sctp_v6_xmit,
+ 	.setsockopt	   = ipv6_setsockopt,
+@@ -998,7 +998,7 @@ static struct sctp_af sctp_af_inet6 = {
+ #endif
+ };
+ 
+-static struct sctp_pf sctp_pf_inet6 = {
++static struct sctp_pf sctp_pf_inet6 __read_only = {
+ 	.event_msgname = sctp_inet6_event_msgname,
+ 	.skb_msgname   = sctp_inet6_skb_msgname,
+ 	.af_supported  = sctp_inet6_af_supported,
+@@ -1023,7 +1023,7 @@ void sctp_v6_pf_init(void)
+ 
+ void sctp_v6_pf_exit(void)
+ {
+-	list_del(&sctp_af_inet6.list);
++	pax_list_del(&sctp_af_inet6.list);
+ }
+ 
+ /* Initialize IPv6 support and register with socket layer.  */
+diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
+index a62a215..0976540 100644
+--- a/net/sctp/protocol.c
++++ b/net/sctp/protocol.c
+@@ -836,8 +836,10 @@ int sctp_register_af(struct sctp_af *af)
+ 		return 0;
+ 	}
+ 
++	pax_open_kernel();
+ 	INIT_LIST_HEAD(&af->list);
+-	list_add_tail(&af->list, &sctp_address_families);
++	pax_close_kernel();
++	pax_list_add_tail(&af->list, &sctp_address_families);
+ 	return 1;
+ }
+ 
+@@ -967,7 +969,7 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
+ 
+ static struct sctp_af sctp_af_inet;
+ 
+-static struct sctp_pf sctp_pf_inet = {
++static struct sctp_pf sctp_pf_inet __read_only = {
+ 	.event_msgname = sctp_inet_event_msgname,
+ 	.skb_msgname   = sctp_inet_skb_msgname,
+ 	.af_supported  = sctp_inet_af_supported,
+@@ -1039,7 +1041,7 @@ static const struct net_protocol sctp_protocol = {
+ };
+ 
+ /* IPv4 address related functions.  */
+-static struct sctp_af sctp_af_inet = {
++static struct sctp_af sctp_af_inet __read_only = {
+ 	.sa_family	   = AF_INET,
+ 	.sctp_xmit	   = sctp_v4_xmit,
+ 	.setsockopt	   = ip_setsockopt,
+@@ -1124,7 +1126,7 @@ static void sctp_v4_pf_init(void)
+ 
+ static void sctp_v4_pf_exit(void)
+ {
+-	list_del(&sctp_af_inet.list);
++	pax_list_del(&sctp_af_inet.list);
+ }
+ 
+ static int sctp_v4_protosw_init(void)
+diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
+index fef2acd..c705c4f 100644
+--- a/net/sctp/sm_sideeffect.c
++++ b/net/sctp/sm_sideeffect.c
+@@ -439,7 +439,7 @@ static void sctp_generate_sack_event(unsigned long data)
+ 	sctp_generate_timeout_event(asoc, SCTP_EVENT_TIMEOUT_SACK);
+ }
+ 
+-sctp_timer_event_t *sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
++sctp_timer_event_t * const sctp_timer_events[SCTP_NUM_TIMEOUT_TYPES] = {
+ 	NULL,
+ 	sctp_generate_t1_cookie_event,
+ 	sctp_generate_t1_init_event,
+diff --git a/net/sctp/socket.c b/net/sctp/socket.c
+index 604a6ac..990354d 100644
+--- a/net/sctp/socket.c
++++ b/net/sctp/socket.c
+@@ -1605,6 +1605,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
+ 	sctp_scope_t scope;
+ 	long timeo;
+ 	__u16 sinfo_flags = 0;
++	bool wait_connect = false;
+ 	struct sctp_datamsg *datamsg;
+ 	int msg_flags = msg->msg_flags;
+ 
+@@ -1924,6 +1925,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
+ 		if (err < 0)
+ 			goto out_free;
+ 
++		wait_connect = true;
+ 		pr_debug("%s: we associated primitively\n", __func__);
+ 	}
+ 
+@@ -1961,6 +1963,11 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
+ 	sctp_datamsg_put(datamsg);
+ 	err = msg_len;
+ 
++	if (unlikely(wait_connect)) {
++		timeo = sock_sndtimeo(sk, msg_flags & MSG_DONTWAIT);
++		sctp_wait_for_connect(asoc, &timeo);
++	}
++
+ 	/* If we are already past ASSOCIATE, the lower
+ 	 * layers are responsible for association cleanup.
+ 	 */
+@@ -2175,11 +2182,13 @@ static int sctp_setsockopt_events(struct sock *sk, char __user *optval,
+ {
+ 	struct sctp_association *asoc;
+ 	struct sctp_ulpevent *event;
++	struct sctp_event_subscribe subscribe;
+ 
+ 	if (optlen > sizeof(struct sctp_event_subscribe))
+ 		return -EINVAL;
+-	if (copy_from_user(&sctp_sk(sk)->subscribe, optval, optlen))
++	if (copy_from_user(&subscribe, optval, optlen))
+ 		return -EFAULT;
++	sctp_sk(sk)->subscribe = subscribe;
+ 
+ 	/*
+ 	 * At the time when a user app subscribes to SCTP_SENDER_DRY_EVENT,
+@@ -4259,13 +4268,16 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
+ static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
+ 				  int __user *optlen)
+ {
++	struct sctp_event_subscribe subscribe;
++
+ 	if (len <= 0)
+ 		return -EINVAL;
+ 	if (len > sizeof(struct sctp_event_subscribe))
+ 		len = sizeof(struct sctp_event_subscribe);
+ 	if (put_user(len, optlen))
+ 		return -EFAULT;
+-	if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))
++	subscribe = sctp_sk(sk)->subscribe;
++	if (copy_to_user(optval, &subscribe, len))
+ 		return -EFAULT;
+ 	return 0;
+ }
+@@ -4283,6 +4295,8 @@ static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
+  */
+ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optval, int __user *optlen)
+ {
++	__u32 autoclose;
++
+ 	/* Applicable to UDP-style socket only */
+ 	if (sctp_style(sk, TCP))
+ 		return -EOPNOTSUPP;
+@@ -4291,7 +4305,8 @@ static int sctp_getsockopt_autoclose(struct sock *sk, int len, char __user *optv
+ 	len = sizeof(int);
+ 	if (put_user(len, optlen))
+ 		return -EFAULT;
+-	if (copy_to_user(optval, &sctp_sk(sk)->autoclose, sizeof(int)))
++	autoclose = sctp_sk(sk)->autoclose;
++	if (copy_to_user(optval, &autoclose, sizeof(int)))
+ 		return -EFAULT;
+ 	return 0;
+ }
+@@ -4666,12 +4681,15 @@ static int sctp_getsockopt_delayed_ack(struct sock *sk, int len,
+  */
+ static int sctp_getsockopt_initmsg(struct sock *sk, int len, char __user *optval, int __user *optlen)
+ {
++	struct sctp_initmsg initmsg;
++
+ 	if (len < sizeof(struct sctp_initmsg))
+ 		return -EINVAL;
+ 	len = sizeof(struct sctp_initmsg);
+ 	if (put_user(len, optlen))
+ 		return -EFAULT;
+-	if (copy_to_user(optval, &sctp_sk(sk)->initmsg, len))
++	initmsg = sctp_sk(sk)->initmsg;
++	if (copy_to_user(optval, &initmsg, len))
+ 		return -EFAULT;
+ 	return 0;
+ }
+@@ -4712,6 +4730,8 @@ static int sctp_getsockopt_peer_addrs(struct sock *sk, int len,
+ 		addrlen = sctp_get_af_specific(temp.sa.sa_family)->sockaddr_len;
+ 		if (space_left < addrlen)
+ 			return -ENOMEM;
++		if (addrlen > sizeof(temp) || addrlen < 0)
++			return -EFAULT;
+ 		if (copy_to_user(to, &temp, addrlen))
+ 			return -EFAULT;
+ 		to += addrlen;
+diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
+index dfa532f..1dcfb44 100644
+--- a/net/sctp/sysctl.c
++++ b/net/sctp/sysctl.c
+@@ -307,7 +307,7 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write,
+ 				loff_t *ppos)
+ {
+ 	struct net *net = current->nsproxy->net_ns;
+-	struct ctl_table tbl;
++	ctl_table_no_const tbl;
+ 	bool changed = false;
+ 	char *none = "none";
+ 	char tmp[8];
+@@ -355,7 +355,7 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write,
+ 	struct net *net = current->nsproxy->net_ns;
+ 	unsigned int min = *(unsigned int *) ctl->extra1;
+ 	unsigned int max = *(unsigned int *) ctl->extra2;
+-	struct ctl_table tbl;
++	ctl_table_no_const tbl;
+ 	int ret, new_value;
+ 
+ 	memset(&tbl, 0, sizeof(struct ctl_table));
+@@ -384,7 +384,7 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write,
+ 	struct net *net = current->nsproxy->net_ns;
+ 	unsigned int min = *(unsigned int *) ctl->extra1;
+ 	unsigned int max = *(unsigned int *) ctl->extra2;
+-	struct ctl_table tbl;
++	ctl_table_no_const tbl;
+ 	int ret, new_value;
+ 
+ 	memset(&tbl, 0, sizeof(struct ctl_table));
+@@ -411,7 +411,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
+ 			     loff_t *ppos)
+ {
+ 	struct net *net = current->nsproxy->net_ns;
+-	struct ctl_table tbl;
++	ctl_table_no_const tbl;
+ 	int new_value, ret;
+ 
+ 	memset(&tbl, 0, sizeof(struct ctl_table));
+@@ -438,7 +438,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write,
+ 
+ int sctp_sysctl_net_register(struct net *net)
+ {
+-	struct ctl_table *table = sctp_net_table;
++	ctl_table_no_const *table = NULL;
+ 
+ 	if (!net_eq(net, &init_net)) {
+ 		int i;
+@@ -451,7 +451,10 @@ int sctp_sysctl_net_register(struct net *net)
+ 			table[i].data += (char *)(&net->sctp) - (char *)&init_net.sctp;
+ 	}
+ 
+-	net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
++	if (!net_eq(net, &init_net))
++		net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
++	else
++		net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", sctp_net_table);
+ 	return 0;
+ }
+ 
+diff --git a/net/socket.c b/net/socket.c
+index b72fc13..50e43ff 100644
+--- a/net/socket.c
++++ b/net/socket.c
+@@ -88,6 +88,7 @@
+ #include <linux/magic.h>
+ #include <linux/slab.h>
+ #include <linux/xattr.h>
++#include <linux/in.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+@@ -111,6 +112,8 @@ unsigned int sysctl_net_busy_read __read_mostly;
+ unsigned int sysctl_net_busy_poll __read_mostly;
+ #endif
+ 
++#include <linux/grsock.h>
++
+ static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
+ static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
+ 			 unsigned long nr_segs, loff_t pos);
+@@ -162,7 +165,7 @@ static const struct file_operations socket_file_ops = {
+  */
+ 
+ static DEFINE_SPINLOCK(net_family_lock);
+-static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
++const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly;
+ 
+ /*
+  *	Statistics counters of the socket lists
+@@ -328,7 +331,7 @@ static struct dentry *sockfs_mount(struct file_system_type *fs_type,
+ 		&sockfs_dentry_operations, SOCKFS_MAGIC);
+ }
+ 
+-static struct vfsmount *sock_mnt __read_mostly;
++struct vfsmount *sock_mnt __read_mostly;
+ 
+ static struct file_system_type sock_fs_type = {
+ 	.name =		"sockfs",
+@@ -1253,6 +1256,8 @@ int __sock_create(struct net *net, int family, int type, int protocol,
+ 		return -EAFNOSUPPORT;
+ 	if (type < 0 || type >= SOCK_MAX)
+ 		return -EINVAL;
++	if (protocol < 0)
++		return -EINVAL;
+ 
+ 	/* Compatibility.
+ 
+@@ -1273,6 +1278,20 @@ int __sock_create(struct net *net, int family, int type, int protocol,
+ 	if (err)
+ 		return err;
+ 
++	if(!kern && !gr_search_socket(family, type, protocol)) {
++		if (rcu_access_pointer(net_families[family]) == NULL)
++			return -EAFNOSUPPORT;
++		else
++			return -EACCES;
++	}
++
++	if (!kern && gr_handle_sock_all(family, type, protocol)) {
++		if (rcu_access_pointer(net_families[family]) == NULL)
++			return -EAFNOSUPPORT;
++		else
++			return -EACCES;
++	}
++
+ 	/*
+ 	 *	Allocate the socket and allow the family to set things up. if
+ 	 *	the protocol is 0, the family is instructed to select an appropriate
+@@ -1524,6 +1543,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
+ 	if (sock) {
+ 		err = move_addr_to_kernel(umyaddr, addrlen, &address);
+ 		if (err >= 0) {
++			if (gr_handle_sock_server((struct sockaddr *)&address)) {
++				err = -EACCES;
++				goto error;
++			}
++			err = gr_search_bind(sock, (struct sockaddr_in *)&address);
++			if (err)
++				goto error;
++
+ 			err = security_socket_bind(sock,
+ 						   (struct sockaddr *)&address,
+ 						   addrlen);
+@@ -1532,6 +1559,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
+ 						      (struct sockaddr *)
+ 						      &address, addrlen);
+ 		}
++error:
+ 		fput_light(sock->file, fput_needed);
+ 	}
+ 	return err;
+@@ -1555,10 +1583,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog)
+ 		if ((unsigned int)backlog > somaxconn)
+ 			backlog = somaxconn;
+ 
++		if (gr_handle_sock_server_other(sock->sk)) {
++			err = -EPERM;
++			goto error;
++		}
++
++		err = gr_search_listen(sock);
++		if (err)
++			goto error;
++
+ 		err = security_socket_listen(sock, backlog);
+ 		if (!err)
+ 			err = sock->ops->listen(sock, backlog);
+ 
++error:
+ 		fput_light(sock->file, fput_needed);
+ 	}
+ 	return err;
+@@ -1602,6 +1640,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
+ 	newsock->type = sock->type;
+ 	newsock->ops = sock->ops;
+ 
++	if (gr_handle_sock_server_other(sock->sk)) {
++		err = -EPERM;
++		sock_release(newsock);
++		goto out_put;
++	}
++
++	err = gr_search_accept(sock);
++	if (err) {
++		sock_release(newsock);
++		goto out_put;
++	}
++
+ 	/*
+ 	 * We don't need try_module_get here, as the listening socket (sock)
+ 	 * has the protocol module (sock->ops->owner) held.
+@@ -1647,6 +1697,8 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
+ 	fd_install(newfd, newfile);
+ 	err = newfd;
+ 
++	gr_attach_curr_ip(newsock->sk);
++
+ out_put:
+ 	fput_light(sock->file, fput_needed);
+ out:
+@@ -1679,6 +1731,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
+ 		int, addrlen)
+ {
+ 	struct socket *sock;
++	struct sockaddr *sck;
+ 	struct sockaddr_storage address;
+ 	int err, fput_needed;
+ 
+@@ -1689,6 +1742,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
+ 	if (err < 0)
+ 		goto out_put;
+ 
++	sck = (struct sockaddr *)&address;
++
++	if (gr_handle_sock_client(sck)) {
++		err = -EACCES;
++		goto out_put;
++	}
++
++	err = gr_search_connect(sock, (struct sockaddr_in *)sck);
++	if (err)
++		goto out_put;
++
+ 	err =
+ 	    security_socket_connect(sock, (struct sockaddr *)&address, addrlen);
+ 	if (err)
+@@ -1770,6 +1834,8 @@ SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
+  *	the protocol.
+  */
+ 
++asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, struct sockaddr __user *, int);
++
+ SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
+ 		unsigned int, flags, struct sockaddr __user *, addr,
+ 		int, addr_len)
+@@ -1836,7 +1902,7 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
+ 	struct socket *sock;
+ 	struct iovec iov;
+ 	struct msghdr msg;
+-	struct sockaddr_storage address;
++	struct sockaddr_storage address = { };
+ 	int err, err2;
+ 	int fput_needed;
+ 
+@@ -1984,6 +2050,9 @@ static int copy_msghdr_from_user(struct msghdr *kmsg,
+ 	if (copy_from_user(kmsg, umsg, sizeof(struct msghdr)))
+ 		return -EFAULT;
+ 
++	if (kmsg->msg_name == NULL)
++		kmsg->msg_namelen = 0;
++
+ 	if (kmsg->msg_namelen < 0)
+ 		return -EINVAL;
+ 
+@@ -2060,7 +2129,7 @@ static int ___sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
+ 		 * checking falls down on this.
+ 		 */
+ 		if (copy_from_user(ctl_buf,
+-				   (void __user __force *)msg_sys->msg_control,
++				   (void __force_user *)msg_sys->msg_control,
+ 				   ctl_len))
+ 			goto out_freectl;
+ 		msg_sys->msg_control = ctl_buf;
+@@ -2211,7 +2280,7 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
+ 	int err, total_len, len;
+ 
+ 	/* kernel mode address */
+-	struct sockaddr_storage addr;
++	struct sockaddr_storage addr = { };
+ 
+ 	/* user mode address pointers */
+ 	struct sockaddr __user *uaddr;
+@@ -2238,7 +2307,7 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
+ 	/* Save the user-mode address (verify_iovec will change the
+ 	 * kernel msghdr to use the kernel address space)
+ 	 */
+-	uaddr = (__force void __user *)msg_sys->msg_name;
++	uaddr = (void __force_user *)msg_sys->msg_name;
+ 	uaddr_len = COMPAT_NAMELEN(msg);
+ 	if (MSG_CMSG_COMPAT & flags)
+ 		err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE);
+@@ -2882,7 +2951,7 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
+ 	ifr = compat_alloc_user_space(buf_size);
+ 	rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8);
+ 
+-	if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
++	if (copy_in_user(ifr->ifr_name, ifr32->ifr_name, IFNAMSIZ))
+ 		return -EFAULT;
+ 
+ 	if (put_user(convert_in ? rxnfc : compat_ptr(data),
+@@ -2993,7 +3062,7 @@ static int bond_ioctl(struct net *net, unsigned int cmd,
+ 		old_fs = get_fs();
+ 		set_fs(KERNEL_DS);
+ 		err = dev_ioctl(net, cmd,
+-				(struct ifreq __user __force *) &kifr);
++				(struct ifreq __force_user *) &kifr);
+ 		set_fs(old_fs);
+ 
+ 		return err;
+@@ -3086,7 +3155,7 @@ static int compat_sioc_ifmap(struct net *net, unsigned int cmd,
+ 
+ 	old_fs = get_fs();
+ 	set_fs(KERNEL_DS);
+-	err = dev_ioctl(net, cmd, (void  __user __force *)&ifr);
++	err = dev_ioctl(net, cmd, (void  __force_user *)&ifr);
+ 	set_fs(old_fs);
+ 
+ 	if (cmd == SIOCGIFMAP && !err) {
+@@ -3170,7 +3239,7 @@ static int routing_ioctl(struct net *net, struct socket *sock,
+ 		ret |= get_user(rtdev, &(ur4->rt_dev));
+ 		if (rtdev) {
+ 			ret |= copy_from_user(devname, compat_ptr(rtdev), 15);
+-			r4.rt_dev = (char __user __force *)devname;
++			r4.rt_dev = (char __force_user *)devname;
+ 			devname[15] = 0;
+ 		} else
+ 			r4.rt_dev = NULL;
+@@ -3397,8 +3466,8 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
+ 	int __user *uoptlen;
+ 	int err;
+ 
+-	uoptval = (char __user __force *) optval;
+-	uoptlen = (int __user __force *) optlen;
++	uoptval = (char __force_user *) optval;
++	uoptlen = (int __force_user *) optlen;
+ 
+ 	set_fs(KERNEL_DS);
+ 	if (level == SOL_SOCKET)
+@@ -3418,7 +3487,7 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
+ 	char __user *uoptval;
+ 	int err;
+ 
+-	uoptval = (char __user __force *) optval;
++	uoptval = (char __force_user *) optval;
+ 
+ 	set_fs(KERNEL_DS);
+ 	if (level == SOL_SOCKET)
+diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
+index 0f73f45..a96aa52 100644
+--- a/net/sunrpc/auth_gss/svcauth_gss.c
++++ b/net/sunrpc/auth_gss/svcauth_gss.c
+@@ -1140,7 +1140,7 @@ static int gss_proxy_save_rsc(struct cache_detail *cd,
+ 				uint64_t *handle)
+ {
+ 	struct rsc rsci, *rscp = NULL;
+-	static atomic64_t ctxhctr;
++	static atomic64_unchecked_t ctxhctr = ATOMIC64_INIT(0);
+ 	long long ctxh;
+ 	struct gss_api_mech *gm = NULL;
+ 	time_t expiry;
+@@ -1151,7 +1151,7 @@ static int gss_proxy_save_rsc(struct cache_detail *cd,
+ 	status = -ENOMEM;
+ 	/* the handle needs to be just a unique id,
+ 	 * use a static counter */
+-	ctxh = atomic64_inc_return(&ctxhctr);
++	ctxh = atomic64_inc_return_unchecked(&ctxhctr);
+ 
+ 	/* make a copy for the caller */
+ 	*handle = ctxh;
+diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
+index 0adc66c..1dca80d 100644
+--- a/net/sunrpc/cache.c
++++ b/net/sunrpc/cache.c
+@@ -1609,7 +1609,7 @@ static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)
+ 	struct sunrpc_net *sn;
+ 
+ 	sn = net_generic(net, sunrpc_net_id);
+-	cd->u.procfs.proc_ent = proc_mkdir(cd->name, sn->proc_net_rpc);
++	cd->u.procfs.proc_ent = proc_mkdir_restrict(cd->name, sn->proc_net_rpc);
+ 	if (cd->u.procfs.proc_ent == NULL)
+ 		goto out_nomem;
+ 	cd->u.procfs.channel_ent = NULL;
+diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
+index 5ff8b87..35af642 100644
+--- a/net/sunrpc/clnt.c
++++ b/net/sunrpc/clnt.c
+@@ -1418,7 +1418,9 @@ call_start(struct rpc_task *task)
+ 			(RPC_IS_ASYNC(task) ? "async" : "sync"));
+ 
+ 	/* Increment call count */
+-	task->tk_msg.rpc_proc->p_count++;
++	pax_open_kernel();
++	(*(unsigned int *)&task->tk_msg.rpc_proc->p_count)++;
++	pax_close_kernel();
+ 	clnt->cl_stats->rpccnt++;
+ 	task->tk_action = call_reserve;
+ }
+diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
+index ff3cc4b..7612a9e 100644
+--- a/net/sunrpc/sched.c
++++ b/net/sunrpc/sched.c
+@@ -261,9 +261,9 @@ static int rpc_wait_bit_killable(void *word)
+ #if defined(RPC_DEBUG) || defined(RPC_TRACEPOINTS)
+ static void rpc_task_set_debuginfo(struct rpc_task *task)
+ {
+-	static atomic_t rpc_pid;
++	static atomic_unchecked_t rpc_pid;
+ 
+-	task->tk_pid = atomic_inc_return(&rpc_pid);
++	task->tk_pid = atomic_inc_return_unchecked(&rpc_pid);
+ }
+ #else
+ static inline void rpc_task_set_debuginfo(struct rpc_task *task)
+diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
+index 5453049..465669a 100644
+--- a/net/sunrpc/stats.c
++++ b/net/sunrpc/stats.c
+@@ -267,7 +267,7 @@ int rpc_proc_init(struct net *net)
+ 
+ 	dprintk("RPC:       registering /proc/net/rpc\n");
+ 	sn = net_generic(net, sunrpc_net_id);
+-	sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
++	sn->proc_net_rpc = proc_mkdir_restrict("rpc", net->proc_net);
+ 	if (sn->proc_net_rpc == NULL)
+ 		return -ENOMEM;
+ 
+diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
+index 5de6801..b4e330d 100644
+--- a/net/sunrpc/svc.c
++++ b/net/sunrpc/svc.c
+@@ -1167,7 +1167,9 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
+ 	svc_putnl(resv, RPC_SUCCESS);
+ 
+ 	/* Bump per-procedure stats counter */
+-	procp->pc_count++;
++	pax_open_kernel();
++	(*(unsigned int *)&procp->pc_count)++;
++	pax_close_kernel();
+ 
+ 	/* Initialize storage for argp and resp */
+ 	memset(rqstp->rq_argp, 0, procp->pc_argsize);
+diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
+index 621ca7b..59421dd 100644
+--- a/net/sunrpc/svcauth_unix.c
++++ b/net/sunrpc/svcauth_unix.c
+@@ -414,7 +414,7 @@ struct unix_gid {
+ 	struct group_info	*gi;
+ };
+ 
+-static int unix_gid_hash(kuid_t uid)
++static int __intentional_overflow(-1) unix_gid_hash(kuid_t uid)
+ {
+ 	return hash_long(from_kuid(&init_user_ns, uid), GID_HASHBITS);
+ }
+@@ -470,7 +470,7 @@ static void unix_gid_request(struct cache_detail *cd,
+ 	(*bpp)[-1] = '\n';
+ }
+ 
+-static struct unix_gid *unix_gid_lookup(struct cache_detail *cd, kuid_t uid);
++static struct unix_gid * __intentional_overflow(-1) unix_gid_lookup(struct cache_detail *cd, kuid_t uid);
+ 
+ static int unix_gid_parse(struct cache_detail *cd,
+ 			char *mesg, int mlen)
+diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
+index c1b6270..05089c1 100644
+--- a/net/sunrpc/xprtrdma/svc_rdma.c
++++ b/net/sunrpc/xprtrdma/svc_rdma.c
+@@ -62,15 +62,15 @@ unsigned int svcrdma_max_req_size = RPCRDMA_MAX_REQ_SIZE;
+ static unsigned int min_max_inline = 4096;
+ static unsigned int max_max_inline = 65536;
+ 
+-atomic_t rdma_stat_recv;
+-atomic_t rdma_stat_read;
+-atomic_t rdma_stat_write;
+-atomic_t rdma_stat_sq_starve;
+-atomic_t rdma_stat_rq_starve;
+-atomic_t rdma_stat_rq_poll;
+-atomic_t rdma_stat_rq_prod;
+-atomic_t rdma_stat_sq_poll;
+-atomic_t rdma_stat_sq_prod;
++atomic_unchecked_t rdma_stat_recv;
++atomic_unchecked_t rdma_stat_read;
++atomic_unchecked_t rdma_stat_write;
++atomic_unchecked_t rdma_stat_sq_starve;
++atomic_unchecked_t rdma_stat_rq_starve;
++atomic_unchecked_t rdma_stat_rq_poll;
++atomic_unchecked_t rdma_stat_rq_prod;
++atomic_unchecked_t rdma_stat_sq_poll;
++atomic_unchecked_t rdma_stat_sq_prod;
+ 
+ /* Temporary NFS request map and context caches */
+ struct kmem_cache *svc_rdma_map_cachep;
+@@ -110,7 +110,7 @@ static int read_reset_stat(struct ctl_table *table, int write,
+ 		len -= *ppos;
+ 		if (len > *lenp)
+ 			len = *lenp;
+-		if (len && copy_to_user(buffer, str_buf, len))
++		if (len > sizeof str_buf || (len && copy_to_user(buffer, str_buf, len)))
+ 			return -EFAULT;
+ 		*lenp = len;
+ 		*ppos += len;
+@@ -151,63 +151,63 @@ static struct ctl_table svcrdma_parm_table[] = {
+ 	{
+ 		.procname	= "rdma_stat_read",
+ 		.data		= &rdma_stat_read,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_recv",
+ 		.data		= &rdma_stat_recv,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_write",
+ 		.data		= &rdma_stat_write,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_sq_starve",
+ 		.data		= &rdma_stat_sq_starve,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_rq_starve",
+ 		.data		= &rdma_stat_rq_starve,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_rq_poll",
+ 		.data		= &rdma_stat_rq_poll,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_rq_prod",
+ 		.data		= &rdma_stat_rq_prod,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_sq_poll",
+ 		.data		= &rdma_stat_sq_poll,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+ 	{
+ 		.procname	= "rdma_stat_sq_prod",
+ 		.data		= &rdma_stat_sq_prod,
+-		.maxlen		= sizeof(atomic_t),
++		.maxlen		= sizeof(atomic_unchecked_t),
+ 		.mode		= 0644,
+ 		.proc_handler	= read_reset_stat,
+ 	},
+diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+index 0ce7552..d074459 100644
+--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
++++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+@@ -501,7 +501,7 @@ next_sge:
+ 			svc_rdma_put_context(ctxt, 0);
+ 			goto out;
+ 		}
+-		atomic_inc(&rdma_stat_read);
++		atomic_inc_unchecked(&rdma_stat_read);
+ 
+ 		if (read_wr.num_sge < chl_map->ch[ch_no].count) {
+ 			chl_map->ch[ch_no].count -= read_wr.num_sge;
+@@ -611,7 +611,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
+ 				  dto_q);
+ 		list_del_init(&ctxt->dto_q);
+ 	} else {
+-		atomic_inc(&rdma_stat_rq_starve);
++		atomic_inc_unchecked(&rdma_stat_rq_starve);
+ 		clear_bit(XPT_DATA, &xprt->xpt_flags);
+ 		ctxt = NULL;
+ 	}
+@@ -631,7 +631,7 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
+ 	dprintk("svcrdma: processing ctxt=%p on xprt=%p, rqstp=%p, status=%d\n",
+ 		ctxt, rdma_xprt, rqstp, ctxt->wc_status);
+ 	BUG_ON(ctxt->wc_status != IB_WC_SUCCESS);
+-	atomic_inc(&rdma_stat_recv);
++	atomic_inc_unchecked(&rdma_stat_recv);
+ 
+ 	/* Build up the XDR from the receive buffers. */
+ 	rdma_build_arg_xdr(rqstp, ctxt, ctxt->byte_len);
+diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+index c1d124d..acfc59e 100644
+--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
++++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+@@ -362,7 +362,7 @@ static int send_write(struct svcxprt_rdma *xprt, struct svc_rqst *rqstp,
+ 	write_wr.wr.rdma.remote_addr = to;
+ 
+ 	/* Post It */
+-	atomic_inc(&rdma_stat_write);
++	atomic_inc_unchecked(&rdma_stat_write);
+ 	if (svc_rdma_send(xprt, &write_wr))
+ 		goto err;
+ 	return 0;
+diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
+index ed36cb5..c55d17f 100644
+--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
++++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
+@@ -293,7 +293,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
+ 		return;
+ 
+ 	ib_req_notify_cq(xprt->sc_rq_cq, IB_CQ_NEXT_COMP);
+-	atomic_inc(&rdma_stat_rq_poll);
++	atomic_inc_unchecked(&rdma_stat_rq_poll);
+ 
+ 	while ((ret = ib_poll_cq(xprt->sc_rq_cq, 1, &wc)) > 0) {
+ 		ctxt = (struct svc_rdma_op_ctxt *)(unsigned long)wc.wr_id;
+@@ -315,7 +315,7 @@ static void rq_cq_reap(struct svcxprt_rdma *xprt)
+ 	}
+ 
+ 	if (ctxt)
+-		atomic_inc(&rdma_stat_rq_prod);
++		atomic_inc_unchecked(&rdma_stat_rq_prod);
+ 
+ 	set_bit(XPT_DATA, &xprt->sc_xprt.xpt_flags);
+ 	/*
+@@ -387,7 +387,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
+ 		return;
+ 
+ 	ib_req_notify_cq(xprt->sc_sq_cq, IB_CQ_NEXT_COMP);
+-	atomic_inc(&rdma_stat_sq_poll);
++	atomic_inc_unchecked(&rdma_stat_sq_poll);
+ 	while ((ret = ib_poll_cq(cq, 1, &wc)) > 0) {
+ 		if (wc.status != IB_WC_SUCCESS)
+ 			/* Close the transport */
+@@ -405,7 +405,7 @@ static void sq_cq_reap(struct svcxprt_rdma *xprt)
+ 	}
+ 
+ 	if (ctxt)
+-		atomic_inc(&rdma_stat_sq_prod);
++		atomic_inc_unchecked(&rdma_stat_sq_prod);
+ }
+ 
+ static void sq_comp_handler(struct ib_cq *cq, void *cq_context)
+@@ -1263,7 +1263,7 @@ int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
+ 		spin_lock_bh(&xprt->sc_lock);
+ 		if (xprt->sc_sq_depth < atomic_read(&xprt->sc_sq_count) + wr_count) {
+ 			spin_unlock_bh(&xprt->sc_lock);
+-			atomic_inc(&rdma_stat_sq_starve);
++			atomic_inc_unchecked(&rdma_stat_sq_starve);
+ 
+ 			/* See if we can opportunistically reap SQ WR to make room */
+ 			sq_cq_reap(xprt);
+diff --git a/net/sysctl_net.c b/net/sysctl_net.c
+index e7000be..e3b0ba7 100644
+--- a/net/sysctl_net.c
++++ b/net/sysctl_net.c
+@@ -46,7 +46,7 @@ static int net_ctl_permissions(struct ctl_table_header *head,
+ 	kgid_t root_gid = make_kgid(net->user_ns, 0);
+ 
+ 	/* Allow network administrator to have same access as root. */
+-	if (ns_capable(net->user_ns, CAP_NET_ADMIN) ||
++	if (ns_capable_nolog(net->user_ns, CAP_NET_ADMIN) ||
+ 	    uid_eq(root_uid, current_euid())) {
+ 		int mode = (table->mode >> 6) & 7;
+ 		return (mode << 6) | (mode << 3) | mode;
+diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
+index 6424372..afd36e9 100644
+--- a/net/tipc/subscr.c
++++ b/net/tipc/subscr.c
+@@ -97,7 +97,7 @@ static void subscr_send_event(struct tipc_subscription *sub, u32 found_lower,
+ 	struct tipc_subscriber *subscriber = sub->subscriber;
+ 	struct kvec msg_sect;
+ 
+-	msg_sect.iov_base = (void *)&sub->evt;
++	msg_sect.iov_base = &sub->evt;
+ 	msg_sect.iov_len = sizeof(struct tipc_event);
+ 	sub->evt.event = htohl(event, sub->swap);
+ 	sub->evt.found_lower = htohl(found_lower, sub->swap);
+diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
+index 4757f1c..11b32ee 100644
+--- a/net/unix/af_unix.c
++++ b/net/unix/af_unix.c
+@@ -791,6 +791,12 @@ static struct sock *unix_find_other(struct net *net,
+ 		err = -ECONNREFUSED;
+ 		if (!S_ISSOCK(inode->i_mode))
+ 			goto put_fail;
++
++		if (!gr_acl_handle_unix(path.dentry, path.mnt)) {
++			err = -EACCES;
++			goto put_fail;
++		}
++
+ 		u = unix_find_socket_byinode(inode);
+ 		if (!u)
+ 			goto put_fail;
+@@ -811,6 +817,13 @@ static struct sock *unix_find_other(struct net *net,
+ 		if (u) {
+ 			struct dentry *dentry;
+ 			dentry = unix_sk(u)->path.dentry;
++
++			if (!gr_handle_chroot_unix(pid_vnr(u->sk_peer_pid))) {
++				err = -EPERM;
++				sock_put(u);
++				goto fail;
++			}
++
+ 			if (dentry)
+ 				touch_atime(&unix_sk(u)->path);
+ 		} else
+@@ -844,12 +857,18 @@ static int unix_mknod(const char *sun_path, umode_t mode, struct path *res)
+ 	 */
+ 	err = security_path_mknod(&path, dentry, mode, 0);
+ 	if (!err) {
++		if (!gr_acl_handle_mknod(dentry, path.dentry, path.mnt, mode)) {
++			err = -EACCES;
++			goto out;
++		}
+ 		err = vfs_mknod(path.dentry->d_inode, dentry, mode, 0);
+ 		if (!err) {
+ 			res->mnt = mntget(path.mnt);
+ 			res->dentry = dget(dentry);
++			gr_handle_create(dentry, path.mnt);
+ 		}
+ 	}
++out:
+ 	done_path_create(&path, dentry);
+ 	return err;
+ }
+@@ -2251,11 +2270,14 @@ static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
+ 	writable = unix_writable(sk);
+ 	other = unix_peer_get(sk);
+ 	if (other) {
+-		if (unix_peer(other) != sk) {
++		unix_state_lock(other);
++		if (!sock_flag(other, SOCK_DEAD) && unix_peer(other) != sk) {
++			unix_state_unlock(other);
+ 			sock_poll_wait(file, &unix_sk(other)->peer_wait, wait);
+ 			if (unix_recvq_full(other))
+ 				writable = 0;
+-		}
++		} else
++			unix_state_unlock(other);
+ 		sock_put(other);
+ 	}
+ 
+@@ -2352,9 +2374,13 @@ static int unix_seq_show(struct seq_file *seq, void *v)
+ 		seq_puts(seq, "Num       RefCount Protocol Flags    Type St "
+ 			 "Inode Path\n");
+ 	else {
+-		struct sock *s = v;
++		struct sock *s = v, *peer;
+ 		struct unix_sock *u = unix_sk(s);
+ 		unix_state_lock(s);
++		peer = unix_peer(s);
++		unix_state_unlock(s);
++
++		unix_state_double_lock(s, peer);
+ 
+ 		seq_printf(seq, "%pK: %08X %08X %08X %04X %02X %5lu",
+ 			s,
+@@ -2379,10 +2405,29 @@ static int unix_seq_show(struct seq_file *seq, void *v)
+ 				seq_putc(seq, '@');
+ 				i++;
+ 			}
+-			for ( ; i < len; i++)
+-				seq_putc(seq, u->addr->name->sun_path[i]);
+-		}
+-		unix_state_unlock(s);
++			for ( ; i < len; i++) {
++				char c = u->addr->name->sun_path[i];
++				switch (c) {
++				case '\n':
++					seq_putc(seq, '\\');
++					seq_putc(seq, 'n');
++					break;
++				case '\t':
++					seq_putc(seq, '\\');
++					seq_putc(seq, 't');
++					break;
++				case '\\':
++					seq_putc(seq, '\\');
++					seq_putc(seq, '\\');
++					break;
++				default:
++					seq_putc(seq, c);
++				}
++			}
++		} else if (peer)
++			seq_printf(seq, " P%lu", sock_i_ino(peer));
++
++		unix_state_double_unlock(s, peer);
+ 		seq_putc(seq, '\n');
+ 	}
+ 
+diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
+index b3d5150..ff3a837 100644
+--- a/net/unix/sysctl_net_unix.c
++++ b/net/unix/sysctl_net_unix.c
+@@ -28,7 +28,7 @@ static struct ctl_table unix_table[] = {
+ 
+ int __net_init unix_sysctl_register(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
+ 	if (table == NULL)
+diff --git a/net/vmw_vsock/vmci_transport_notify.c b/net/vmw_vsock/vmci_transport_notify.c
+index 9a73074..aecba9a 100644
+--- a/net/vmw_vsock/vmci_transport_notify.c
++++ b/net/vmw_vsock/vmci_transport_notify.c
+@@ -662,19 +662,19 @@ static void vmci_transport_notify_pkt_process_negotiate(struct sock *sk)
+ 
+ /* Socket control packet based operations. */
+ struct vmci_transport_notify_ops vmci_transport_notify_pkt_ops = {
+-	vmci_transport_notify_pkt_socket_init,
+-	vmci_transport_notify_pkt_socket_destruct,
+-	vmci_transport_notify_pkt_poll_in,
+-	vmci_transport_notify_pkt_poll_out,
+-	vmci_transport_notify_pkt_handle_pkt,
+-	vmci_transport_notify_pkt_recv_init,
+-	vmci_transport_notify_pkt_recv_pre_block,
+-	vmci_transport_notify_pkt_recv_pre_dequeue,
+-	vmci_transport_notify_pkt_recv_post_dequeue,
+-	vmci_transport_notify_pkt_send_init,
+-	vmci_transport_notify_pkt_send_pre_block,
+-	vmci_transport_notify_pkt_send_pre_enqueue,
+-	vmci_transport_notify_pkt_send_post_enqueue,
+-	vmci_transport_notify_pkt_process_request,
+-	vmci_transport_notify_pkt_process_negotiate,
++	.socket_init = vmci_transport_notify_pkt_socket_init,
++	.socket_destruct = vmci_transport_notify_pkt_socket_destruct,
++	.poll_in = vmci_transport_notify_pkt_poll_in,
++	.poll_out = vmci_transport_notify_pkt_poll_out,
++	.handle_notify_pkt = vmci_transport_notify_pkt_handle_pkt,
++	.recv_init = vmci_transport_notify_pkt_recv_init,
++	.recv_pre_block = vmci_transport_notify_pkt_recv_pre_block,
++	.recv_pre_dequeue = vmci_transport_notify_pkt_recv_pre_dequeue,
++	.recv_post_dequeue = vmci_transport_notify_pkt_recv_post_dequeue,
++	.send_init = vmci_transport_notify_pkt_send_init,
++	.send_pre_block = vmci_transport_notify_pkt_send_pre_block,
++	.send_pre_enqueue = vmci_transport_notify_pkt_send_pre_enqueue,
++	.send_post_enqueue = vmci_transport_notify_pkt_send_post_enqueue,
++	.process_request = vmci_transport_notify_pkt_process_request,
++	.process_negotiate = vmci_transport_notify_pkt_process_negotiate,
+ };
+diff --git a/net/vmw_vsock/vmci_transport_notify_qstate.c b/net/vmw_vsock/vmci_transport_notify_qstate.c
+index 622bd7a..b92086c 100644
+--- a/net/vmw_vsock/vmci_transport_notify_qstate.c
++++ b/net/vmw_vsock/vmci_transport_notify_qstate.c
+@@ -420,19 +420,19 @@ vmci_transport_notify_pkt_send_pre_enqueue(
+ 
+ /* Socket always on control packet based operations. */
+ struct vmci_transport_notify_ops vmci_transport_notify_pkt_q_state_ops = {
+-	vmci_transport_notify_pkt_socket_init,
+-	vmci_transport_notify_pkt_socket_destruct,
+-	vmci_transport_notify_pkt_poll_in,
+-	vmci_transport_notify_pkt_poll_out,
+-	vmci_transport_notify_pkt_handle_pkt,
+-	vmci_transport_notify_pkt_recv_init,
+-	vmci_transport_notify_pkt_recv_pre_block,
+-	vmci_transport_notify_pkt_recv_pre_dequeue,
+-	vmci_transport_notify_pkt_recv_post_dequeue,
+-	vmci_transport_notify_pkt_send_init,
+-	vmci_transport_notify_pkt_send_pre_block,
+-	vmci_transport_notify_pkt_send_pre_enqueue,
+-	vmci_transport_notify_pkt_send_post_enqueue,
+-	vmci_transport_notify_pkt_process_request,
+-	vmci_transport_notify_pkt_process_negotiate,
++	.socket_init = vmci_transport_notify_pkt_socket_init,
++	.socket_destruct = vmci_transport_notify_pkt_socket_destruct,
++	.poll_in = vmci_transport_notify_pkt_poll_in,
++	.poll_out = vmci_transport_notify_pkt_poll_out,
++	.handle_notify_pkt = vmci_transport_notify_pkt_handle_pkt,
++	.recv_init = vmci_transport_notify_pkt_recv_init,
++	.recv_pre_block = vmci_transport_notify_pkt_recv_pre_block,
++	.recv_pre_dequeue = vmci_transport_notify_pkt_recv_pre_dequeue,
++	.recv_post_dequeue = vmci_transport_notify_pkt_recv_post_dequeue,
++	.send_init = vmci_transport_notify_pkt_send_init,
++	.send_pre_block = vmci_transport_notify_pkt_send_pre_block,
++	.send_pre_enqueue = vmci_transport_notify_pkt_send_pre_enqueue,
++	.send_post_enqueue = vmci_transport_notify_pkt_send_post_enqueue,
++	.process_request = vmci_transport_notify_pkt_process_request,
++	.process_negotiate = vmci_transport_notify_pkt_process_negotiate,
+ };
+diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
+index c8717c1..08539f5 100644
+--- a/net/wireless/wext-core.c
++++ b/net/wireless/wext-core.c
+@@ -748,8 +748,7 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
+ 		 */
+ 
+ 		/* Support for very large requests */
+-		if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
+-		    (user_length > descr->max_tokens)) {
++		if (user_length > descr->max_tokens) {
+ 			/* Allow userspace to GET more than max so
+ 			 * we can support any size GET requests.
+ 			 * There is still a limit : -ENOMEM.
+@@ -788,22 +787,6 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
+ 		}
+ 	}
+ 
+-	if (IW_IS_GET(cmd) && !(descr->flags & IW_DESCR_FLAG_NOMAX)) {
+-		/*
+-		 * If this is a GET, but not NOMAX, it means that the extra
+-		 * data is not bounded by userspace, but by max_tokens. Thus
+-		 * set the length to max_tokens. This matches the extra data
+-		 * allocation.
+-		 * The driver should fill it with the number of tokens it
+-		 * provided, and it may check iwp->length rather than having
+-		 * knowledge of max_tokens. If the driver doesn't change the
+-		 * iwp->length, this ioctl just copies back max_token tokens
+-		 * filled with zeroes. Hopefully the driver isn't claiming
+-		 * them to be valid data.
+-		 */
+-		iwp->length = descr->max_tokens;
+-	}
+-
+ 	err = handler(dev, info, (union iwreq_data *) iwp, extra);
+ 
+ 	iwp->length += essid_compat;
+diff --git a/net/x25/sysctl_net_x25.c b/net/x25/sysctl_net_x25.c
+index 4323952..a06dfe1 100644
+--- a/net/x25/sysctl_net_x25.c
++++ b/net/x25/sysctl_net_x25.c
+@@ -70,7 +70,7 @@ static struct ctl_table x25_table[] = {
+ 		.mode = 	0644,
+ 		.proc_handler = proc_dointvec,
+ 	},
+-	{ 0, },
++	{ },
+ };
+ 
+ void __init x25_register_sysctl(void)
+diff --git a/net/x25/x25_proc.c b/net/x25/x25_proc.c
+index 0917f04..f4e3d8c 100644
+--- a/net/x25/x25_proc.c
++++ b/net/x25/x25_proc.c
+@@ -209,7 +209,7 @@ static const struct file_operations x25_seq_forward_fops = {
+ 
+ int __init x25_proc_init(void)
+ {
+-	if (!proc_mkdir("x25", init_net.proc_net))
++	if (!proc_mkdir_restrict("x25", init_net.proc_net))
+ 		return -ENOMEM;
+ 
+ 	if (!proc_create("x25/route", S_IRUGO, init_net.proc_net,
+diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
+index 3bb2cdc..616d812 100644
+--- a/net/xfrm/xfrm_output.c
++++ b/net/xfrm/xfrm_output.c
+@@ -157,6 +157,8 @@ static int xfrm_output_gso(struct sk_buff *skb)
+ 	kfree_skb(skb);
+ 	if (IS_ERR(segs))
+ 		return PTR_ERR(segs);
++	if (segs == NULL)
++		return -EINVAL;
+ 
+ 	do {
+ 		struct sk_buff *nskb = segs->next;
+diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
+index 59cf325..e7fa6f0 100644
+--- a/net/xfrm/xfrm_policy.c
++++ b/net/xfrm/xfrm_policy.c
+@@ -332,7 +332,7 @@ static void xfrm_policy_kill(struct xfrm_policy *policy)
+ {
+ 	policy->walk.dead = 1;
+ 
+-	atomic_inc(&policy->genid);
++	atomic_inc_unchecked(&policy->genid);
+ 
+ 	if (del_timer(&policy->polq.hold_timer))
+ 		xfrm_pol_put(policy);
+@@ -666,7 +666,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
+ 		hlist_add_head(&policy->bydst, chain);
+ 	xfrm_pol_hold(policy);
+ 	net->xfrm.policy_count[dir]++;
+-	atomic_inc(&flow_cache_genid);
++	atomic_inc_unchecked(&flow_cache_genid);
+ 
+ 	/* After previous checking, family can either be AF_INET or AF_INET6 */
+ 	if (policy->family == AF_INET)
+@@ -1766,7 +1766,7 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
+ 
+ 	xdst->num_pols = num_pols;
+ 	memcpy(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols);
+-	xdst->policy_genid = atomic_read(&pols[0]->genid);
++	xdst->policy_genid = atomic_read_unchecked(&pols[0]->genid);
+ 
+ 	return xdst;
+ }
+@@ -2604,11 +2604,12 @@ void xfrm_garbage_collect(struct net *net)
+ }
+ EXPORT_SYMBOL(xfrm_garbage_collect);
+ 
+-static void xfrm_garbage_collect_deferred(struct net *net)
++void xfrm_garbage_collect_deferred(struct net *net)
+ {
+ 	flow_cache_flush_deferred();
+ 	__xfrm_garbage_collect(net);
+ }
++EXPORT_SYMBOL(xfrm_garbage_collect_deferred);
+ 
+ static void xfrm_init_pmtu(struct dst_entry *dst)
+ {
+@@ -2658,7 +2659,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *first)
+ 		if (xdst->xfrm_genid != dst->xfrm->genid)
+ 			return 0;
+ 		if (xdst->num_pols > 0 &&
+-		    xdst->policy_genid != atomic_read(&xdst->pols[0]->genid))
++		    xdst->policy_genid != atomic_read_unchecked(&xdst->pols[0]->genid))
+ 			return 0;
+ 
+ 		mtu = dst_mtu(dst->child);
+@@ -2746,8 +2747,6 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
+ 			dst_ops->link_failure = xfrm_link_failure;
+ 		if (likely(dst_ops->neigh_lookup == NULL))
+ 			dst_ops->neigh_lookup = xfrm_neigh_lookup;
+-		if (likely(afinfo->garbage_collect == NULL))
+-			afinfo->garbage_collect = xfrm_garbage_collect_deferred;
+ 		rcu_assign_pointer(xfrm_policy_afinfo[afinfo->family], afinfo);
+ 	}
+ 	spin_unlock(&xfrm_policy_afinfo_lock);
+@@ -2801,7 +2800,6 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
+ 		dst_ops->check = NULL;
+ 		dst_ops->negative_advice = NULL;
+ 		dst_ops->link_failure = NULL;
+-		afinfo->garbage_collect = NULL;
+ 	}
+ 	return err;
+ }
+@@ -3191,7 +3189,7 @@ static int xfrm_policy_migrate(struct xfrm_policy *pol,
+ 			       sizeof(pol->xfrm_vec[i].saddr));
+ 			pol->xfrm_vec[i].encap_family = mp->new_family;
+ 			/* flush bundles */
+-			atomic_inc(&pol->genid);
++			atomic_inc_unchecked(&pol->genid);
+ 		}
+ 	}
+ 
+diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
+index 40f1b3e..e33fdfa 100644
+--- a/net/xfrm/xfrm_state.c
++++ b/net/xfrm/xfrm_state.c
+@@ -172,12 +172,14 @@ int xfrm_register_type(const struct xfrm_type *type, unsigned short family)
+ 
+ 	if (unlikely(afinfo == NULL))
+ 		return -EAFNOSUPPORT;
+-	typemap = afinfo->type_map;
++	typemap = (const struct xfrm_type **)afinfo->type_map;
+ 	spin_lock_bh(&xfrm_type_lock);
+ 
+-	if (likely(typemap[type->proto] == NULL))
++	if (likely(typemap[type->proto] == NULL)) {
++		pax_open_kernel();
+ 		typemap[type->proto] = type;
+-	else
++		pax_close_kernel();
++	} else
+ 		err = -EEXIST;
+ 	spin_unlock_bh(&xfrm_type_lock);
+ 	xfrm_state_put_afinfo(afinfo);
+@@ -193,13 +195,16 @@ int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family)
+ 
+ 	if (unlikely(afinfo == NULL))
+ 		return -EAFNOSUPPORT;
+-	typemap = afinfo->type_map;
++	typemap = (const struct xfrm_type **)afinfo->type_map;
+ 	spin_lock_bh(&xfrm_type_lock);
+ 
+ 	if (unlikely(typemap[type->proto] != type))
+ 		err = -ENOENT;
+-	else
++	else {
++		pax_open_kernel();
+ 		typemap[type->proto] = NULL;
++		pax_close_kernel();
++	}
+ 	spin_unlock_bh(&xfrm_type_lock);
+ 	xfrm_state_put_afinfo(afinfo);
+ 	return err;
+@@ -209,7 +214,6 @@ EXPORT_SYMBOL(xfrm_unregister_type);
+ static const struct xfrm_type *xfrm_get_type(u8 proto, unsigned short family)
+ {
+ 	struct xfrm_state_afinfo *afinfo;
+-	const struct xfrm_type **typemap;
+ 	const struct xfrm_type *type;
+ 	int modload_attempted = 0;
+ 
+@@ -217,9 +221,8 @@ retry:
+ 	afinfo = xfrm_state_get_afinfo(family);
+ 	if (unlikely(afinfo == NULL))
+ 		return NULL;
+-	typemap = afinfo->type_map;
+ 
+-	type = typemap[proto];
++	type = afinfo->type_map[proto];
+ 	if (unlikely(type && !try_module_get(type->owner)))
+ 		type = NULL;
+ 	if (!type && !modload_attempted) {
+@@ -253,7 +256,7 @@ int xfrm_register_mode(struct xfrm_mode *mode, int family)
+ 		return -EAFNOSUPPORT;
+ 
+ 	err = -EEXIST;
+-	modemap = afinfo->mode_map;
++	modemap = (struct xfrm_mode **)afinfo->mode_map;
+ 	spin_lock_bh(&xfrm_mode_lock);
+ 	if (modemap[mode->encap])
+ 		goto out;
+@@ -262,8 +265,10 @@ int xfrm_register_mode(struct xfrm_mode *mode, int family)
+ 	if (!try_module_get(afinfo->owner))
+ 		goto out;
+ 
+-	mode->afinfo = afinfo;
++	pax_open_kernel();
++	*(const void **)&mode->afinfo = afinfo;
+ 	modemap[mode->encap] = mode;
++	pax_close_kernel();
+ 	err = 0;
+ 
+ out:
+@@ -287,10 +292,12 @@ int xfrm_unregister_mode(struct xfrm_mode *mode, int family)
+ 		return -EAFNOSUPPORT;
+ 
+ 	err = -ENOENT;
+-	modemap = afinfo->mode_map;
++	modemap = (struct xfrm_mode **)afinfo->mode_map;
+ 	spin_lock_bh(&xfrm_mode_lock);
+ 	if (likely(modemap[mode->encap] == mode)) {
++		pax_open_kernel();
+ 		modemap[mode->encap] = NULL;
++		pax_close_kernel();
+ 		module_put(mode->afinfo->owner);
+ 		err = 0;
+ 	}
+@@ -1512,10 +1519,10 @@ EXPORT_SYMBOL(xfrm_find_acq_byseq);
+ u32 xfrm_get_acqseq(void)
+ {
+ 	u32 res;
+-	static atomic_t acqseq;
++	static atomic_unchecked_t acqseq;
+ 
+ 	do {
+-		res = atomic_inc_return(&acqseq);
++		res = atomic_inc_return_unchecked(&acqseq);
+ 	} while (!res);
+ 
+ 	return res;
+diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c
+index 05a6e3d..6716ec9 100644
+--- a/net/xfrm/xfrm_sysctl.c
++++ b/net/xfrm/xfrm_sysctl.c
+@@ -42,7 +42,7 @@ static struct ctl_table xfrm_table[] = {
+ 
+ int __net_init xfrm_sysctl_init(struct net *net)
+ {
+-	struct ctl_table *table;
++	ctl_table_no_const *table;
+ 
+ 	__xfrm_sysctl_init(net);
+ 
+diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
+index 547e15d..e550fa6 100644
+--- a/scripts/Kbuild.include
++++ b/scripts/Kbuild.include
+@@ -143,7 +143,7 @@ cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))
+ # cc-ldoption
+ # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both)
+ cc-ldoption = $(call try-run,\
+-	$(CC) $(1) -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
++	$(CC) $(1) -Wl,-r -nostdlib -x c /dev/null -o "$$TMP",$(1),$(2))
+ 
+ # ld-option
+ # Usage: LDFLAGS += $(call ld-option, -X)
+diff --git a/scripts/Makefile b/scripts/Makefile
+index 01e7adb..6176d5d 100644
+--- a/scripts/Makefile
++++ b/scripts/Makefile
+@@ -40,3 +40,5 @@ subdir-$(CONFIG_DTC)         += dtc
+ 
+ # Let clean descend into subdirs
+ subdir-	+= basic kconfig package selinux
++
++clean-files := randstruct.seed
+diff --git a/scripts/Makefile.build b/scripts/Makefile.build
+index d5d859c..781cbcb 100644
+--- a/scripts/Makefile.build
++++ b/scripts/Makefile.build
+@@ -111,7 +111,7 @@ endif
+ endif
+ 
+ # Do not include host rules unless needed
+-ifneq ($(hostprogs-y)$(hostprogs-m),)
++ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
+ include scripts/Makefile.host
+ endif
+ 
+diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
+index 686cb0d..9d653bf 100644
+--- a/scripts/Makefile.clean
++++ b/scripts/Makefile.clean
+@@ -43,7 +43,8 @@ subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
+ __clean-files	:= $(extra-y) $(always)                  \
+ 		   $(targets) $(clean-files)             \
+ 		   $(host-progs)                         \
+-		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
++		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-) \
++		   $(hostlibs-y) $(hostlibs-m) $(hostlibs-)
+ 
+ __clean-files   := $(filter-out $(no-clean-files), $(__clean-files))
+ 
+diff --git a/scripts/Makefile.host b/scripts/Makefile.host
+index 1ac414f..38575f7 100644
+--- a/scripts/Makefile.host
++++ b/scripts/Makefile.host
+@@ -31,6 +31,8 @@
+ # Note: Shared libraries consisting of C++ files are not supported
+ 
+ __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
++__hostlibs := $(sort $(hostlibs-y) $(hostlibs-m))
++__hostcxxlibs := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
+ 
+ # C code
+ # Executables compiled from a single .c file
+@@ -54,11 +56,15 @@ host-cxxobjs	:= $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
+ # Shared libaries (only .c supported)
+ # Shared libraries (.so) - all .so files referenced in "xxx-objs"
+ host-cshlib	:= $(sort $(filter %.so, $(host-cobjs)))
++host-cshlib	+= $(sort $(filter %.so, $(__hostlibs)))
++host-cxxshlib	:= $(sort $(filter %.so, $(__hostcxxlibs)))
+ # Remove .so files from "xxx-objs"
+ host-cobjs	:= $(filter-out %.so,$(host-cobjs))
++host-cxxobjs	:= $(filter-out %.so,$(host-cxxobjs))
+ 
+-#Object (.o) files used by the shared libaries
++# Object (.o) files used by the shared libaries
+ host-cshobjs	:= $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs))))
++host-cxxshobjs	:= $(sort $(foreach m,$(host-cxxshlib),$($(m:.so=-objs))))
+ 
+ # output directory for programs/.o files
+ # hostprogs-y := tools/build may have been specified. Retrieve directory
+@@ -82,7 +88,9 @@ host-cobjs	:= $(addprefix $(obj)/,$(host-cobjs))
+ host-cxxmulti	:= $(addprefix $(obj)/,$(host-cxxmulti))
+ host-cxxobjs	:= $(addprefix $(obj)/,$(host-cxxobjs))
+ host-cshlib	:= $(addprefix $(obj)/,$(host-cshlib))
++host-cxxshlib	:= $(addprefix $(obj)/,$(host-cxxshlib))
+ host-cshobjs	:= $(addprefix $(obj)/,$(host-cshobjs))
++host-cxxshobjs	:= $(addprefix $(obj)/,$(host-cxxshobjs))
+ host-objdirs    := $(addprefix $(obj)/,$(host-objdirs))
+ 
+ obj-dirs += $(host-objdirs)
+@@ -156,6 +164,13 @@ quiet_cmd_host-cshobjs	= HOSTCC  -fPIC $@
+ $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
+ 	$(call if_changed_dep,host-cshobjs)
+ 
++# Compile .c file, create position independent .o file
++# host-cxxshobjs -> .o
++quiet_cmd_host-cxxshobjs	= HOSTCXX -fPIC $@
++      cmd_host-cxxshobjs	= $(HOSTCXX) $(hostcxx_flags) -fPIC -c -o $@ $<
++$(host-cxxshobjs): $(obj)/%.o: $(src)/%.c FORCE
++	$(call if_changed_dep,host-cxxshobjs)
++
+ # Link a shared library, based on position independent .o files
+ # *.o -> .so shared library (host-cshlib)
+ quiet_cmd_host-cshlib	= HOSTLLD -shared $@
+@@ -165,6 +180,15 @@ quiet_cmd_host-cshlib	= HOSTLLD -shared $@
+ $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
+ 	$(call if_changed,host-cshlib)
+ 
++# Link a shared library, based on position independent .o files
++# *.o -> .so shared library (host-cxxshlib)
++quiet_cmd_host-cxxshlib	= HOSTLLD -shared $@
++      cmd_host-cxxshlib	= $(HOSTCXX) $(HOSTLDFLAGS) -shared -o $@ \
++			  $(addprefix $(obj)/,$($(@F:.so=-objs))) \
++			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
++$(host-cxxshlib): $(obj)/%: $(host-cxxshobjs) FORCE
++	$(call if_changed,host-cxxshlib)
++
+ targets += $(host-csingle)  $(host-cmulti) $(host-cobjs)\
+-	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) 
++	   $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) $(host-cxxshlib) $(host-cxxshobjs)
+ 
+diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
+index 078fe1d..fbdb363 100644
+--- a/scripts/basic/fixdep.c
++++ b/scripts/basic/fixdep.c
+@@ -161,7 +161,7 @@ static unsigned int strhash(const char *str, unsigned int sz)
+ /*
+  * Lookup a value in the configuration string.
+  */
+-static int is_defined_config(const char *name, int len, unsigned int hash)
++static int is_defined_config(const char *name, unsigned int len, unsigned int hash)
+ {
+ 	struct item *aux;
+ 
+@@ -211,10 +211,10 @@ static void clear_config(void)
+ /*
+  * Record the use of a CONFIG_* word.
+  */
+-static void use_config(const char *m, int slen)
++static void use_config(const char *m, unsigned int slen)
+ {
+ 	unsigned int hash = strhash(m, slen);
+-	int c, i;
++	unsigned int c, i;
+ 
+ 	if (is_defined_config(m, slen, hash))
+ 	    return;
+@@ -235,9 +235,9 @@ static void use_config(const char *m, int slen)
+ 
+ static void parse_config_file(const char *map, size_t len)
+ {
+-	const int *end = (const int *) (map + len);
++	const unsigned int *end = (const unsigned int *) (map + len);
+ 	/* start at +1, so that p can never be < map */
+-	const int *m   = (const int *) map + 1;
++	const unsigned int *m   = (const unsigned int *) map + 1;
+ 	const char *p, *q;
+ 
+ 	for (; m < end; m++) {
+@@ -435,7 +435,7 @@ static void print_deps(void)
+ static void traps(void)
+ {
+ 	static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
+-	int *p = (int *)test;
++	unsigned int *p = (unsigned int *)test;
+ 
+ 	if (*p != INT_CONF) {
+ 		fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianness? %#x\n",
+diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
+new file mode 100644
+index 0000000..eaa4fce
+--- /dev/null
++++ b/scripts/gcc-plugin.sh
+@@ -0,0 +1,51 @@
++#!/bin/sh
++srctree=$(dirname "$0")
++gccplugins_dir=$($3 -print-file-name=plugin)
++plugincc=$($1 -E -x c++ - -o /dev/null -I"${srctree}"/../tools/gcc -I"${gccplugins_dir}"/include 2>&1 <<EOF
++#include "gcc-common.h"
++#if BUILDING_GCC_VERSION >= 4008 || defined(ENABLE_BUILD_WITH_CXX)
++#warning $2 CXX
++#else
++#warning $1 CC
++#endif
++EOF
++)
++
++if [ $? -ne 0 ]
++then
++	exit 1
++fi
++
++case "$plugincc" in
++	*"$1 CC"*)
++		echo "$1"
++		exit 0
++		;;
++
++	*"$2 CXX"*)
++		# the c++ compiler needs another test, see below
++		;;
++
++	*)
++		exit 1
++		;;
++esac
++
++# we need a c++ compiler that supports the designated initializer GNU extension
++plugincc=$($2 -c -x c++ -std=gnu++98 - -fsyntax-only -I"${srctree}"/../tools/gcc -I"${gccplugins_dir}"/include 2>&1 <<EOF
++#include "gcc-common.h"
++class test {
++public:
++	int test;
++} test = {
++	.test = 1
++};
++EOF
++)
++
++if [ $? -eq 0 ]
++then
++	echo "$2"
++	exit 0
++fi
++exit 1
+diff --git a/scripts/gcc-version.sh b/scripts/gcc-version.sh
+old mode 100644
+new mode 100755
+diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
+index 5de5660c..d3deb89 100644
+--- a/scripts/headers_install.sh
++++ b/scripts/headers_install.sh
+@@ -32,6 +32,7 @@ do
+ 	FILE="$(basename "$i")"
+ 	sed -r \
+ 		-e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \
++		-e 's/__intentional_overflow\([- \t,0-9]*\)//g' \
+ 		-e 's/__attribute_const__([ \t]|$)/\1/g' \
+ 		-e 's@^#include <linux/compiler.h>@@' \
+ 		-e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
+diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
+index 2dcb377..a82c500 100644
+--- a/scripts/link-vmlinux.sh
++++ b/scripts/link-vmlinux.sh
+@@ -162,7 +162,7 @@ else
+ fi;
+ 
+ # final build of init/
+-${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init
++${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GCC_PLUGINS_CFLAGS}" GCC_PLUGINS_AFLAGS="${GCC_PLUGINS_AFLAGS}"
+ 
+ kallsymso=""
+ kallsyms_vmlinux=""
+diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
+index 25e5cb0..6e85821 100644
+--- a/scripts/mod/file2alias.c
++++ b/scripts/mod/file2alias.c
+@@ -142,7 +142,7 @@ static void device_id_check(const char *modname, const char *device_id,
+ 			    unsigned long size, unsigned long id_size,
+ 			    void *symval)
+ {
+-	int i;
++	unsigned int i;
+ 
+ 	if (size % id_size || size < id_size) {
+ 		fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo "
+@@ -170,7 +170,7 @@ static void device_id_check(const char *modname, const char *device_id,
+ /* USB is special because the bcdDevice can be matched against a numeric range */
+ /* Looks like "usb:vNpNdNdcNdscNdpNicNiscNipNinN" */
+ static void do_usb_entry(void *symval,
+-			 unsigned int bcdDevice_initial, int bcdDevice_initial_digits,
++			 unsigned int bcdDevice_initial, unsigned int bcdDevice_initial_digits,
+ 			 unsigned char range_lo, unsigned char range_hi,
+ 			 unsigned char max, struct module *mod)
+ {
+@@ -280,7 +280,7 @@ static void do_usb_entry_multi(void *symval, struct module *mod)
+ {
+ 	unsigned int devlo, devhi;
+ 	unsigned char chi, clo, max;
+-	int ndigits;
++	unsigned int ndigits;
+ 
+ 	DEF_FIELD(symval, usb_device_id, match_flags);
+ 	DEF_FIELD(symval, usb_device_id, idVendor);
+@@ -533,7 +533,7 @@ static void do_pnp_device_entry(void *symval, unsigned long size,
+ 	for (i = 0; i < count; i++) {
+ 		DEF_FIELD_ADDR(symval + i*id_size, pnp_device_id, id);
+ 		char acpi_id[sizeof(*id)];
+-		int j;
++		unsigned int j;
+ 
+ 		buf_printf(&mod->dev_table_buf,
+ 			   "MODULE_ALIAS(\"pnp:d%s*\");\n", *id);
+@@ -562,7 +562,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
+ 
+ 		for (j = 0; j < PNP_MAX_DEVICES; j++) {
+ 			const char *id = (char *)(*devs)[j].id;
+-			int i2, j2;
++			unsigned int i2, j2;
+ 			int dup = 0;
+ 
+ 			if (!id[0])
+@@ -588,7 +588,7 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
+ 			/* add an individual alias for every device entry */
+ 			if (!dup) {
+ 				char acpi_id[PNP_ID_LEN];
+-				int k;
++				unsigned int k;
+ 
+ 				buf_printf(&mod->dev_table_buf,
+ 					   "MODULE_ALIAS(\"pnp:d%s*\");\n", id);
+@@ -940,7 +940,7 @@ static void dmi_ascii_filter(char *d, const char *s)
+ static int do_dmi_entry(const char *filename, void *symval,
+ 			char *alias)
+ {
+-	int i, j;
++	unsigned int i, j;
+ 	DEF_FIELD_ADDR(symval, dmi_system_id, matches);
+ 	sprintf(alias, "dmi*");
+ 
+diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
+index 99a45fd..4b995a3 100644
+--- a/scripts/mod/modpost.c
++++ b/scripts/mod/modpost.c
+@@ -945,6 +945,7 @@ enum mismatch {
+ 	ANY_INIT_TO_ANY_EXIT,
+ 	ANY_EXIT_TO_ANY_INIT,
+ 	EXPORT_TO_INIT_EXIT,
++	DATA_TO_TEXT
+ };
+ 
+ struct sectioncheck {
+@@ -1031,6 +1032,12 @@ const struct sectioncheck sectioncheck[] = {
+ 	.tosec   = { INIT_SECTIONS, EXIT_SECTIONS, NULL },
+ 	.mismatch = EXPORT_TO_INIT_EXIT,
+ 	.symbol_white_list = { DEFAULT_SYMBOL_WHITE_LIST, NULL },
++},
++/* Do not reference code from writable data */
++{
++	.fromsec = { DATA_SECTIONS, NULL },
++	.tosec   = { TEXT_SECTIONS, NULL },
++	.mismatch = DATA_TO_TEXT
+ }
+ };
+ 
+@@ -1151,10 +1158,10 @@ static Elf_Sym *find_elf_symbol(struct elf_info *elf, Elf64_Sword addr,
+ 			continue;
+ 		if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
+ 			continue;
+-		if (sym->st_value == addr)
+-			return sym;
+ 		/* Find a symbol nearby - addr are maybe negative */
+ 		d = sym->st_value - addr;
++		if (d == 0)
++			return sym;
+ 		if (d < 0)
+ 			d = addr - sym->st_value;
+ 		if (d < distance) {
+@@ -1432,6 +1439,14 @@ static void report_sec_mismatch(const char *modname,
+ 		tosym, prl_to, prl_to, tosym);
+ 		free(prl_to);
+ 		break;
++	case DATA_TO_TEXT:
++#if 0
++		fprintf(stderr,
++		"The %s %s:%s references\n"
++		"the %s %s:%s%s\n",
++		from, fromsec, fromsym, to, tosec, tosym, to_p);
++#endif
++		break;
+ 	}
+ 	fprintf(stderr, "\n");
+ }
+@@ -1679,7 +1694,7 @@ static void section_rel(const char *modname, struct elf_info *elf,
+ static void check_sec_ref(struct module *mod, const char *modname,
+                           struct elf_info *elf)
+ {
+-	int i;
++	unsigned int i;
+ 	Elf_Shdr *sechdrs = elf->sechdrs;
+ 
+ 	/* Walk through all sections */
+@@ -1798,7 +1813,7 @@ void __attribute__((format(printf, 2, 3))) buf_printf(struct buffer *buf,
+ 	va_end(ap);
+ }
+ 
+-void buf_write(struct buffer *buf, const char *s, int len)
++void buf_write(struct buffer *buf, const char *s, unsigned int len)
+ {
+ 	if (buf->size - buf->pos < len) {
+ 		buf->size += len + SZ;
+@@ -2017,7 +2032,7 @@ static void write_if_changed(struct buffer *b, const char *fname)
+ 	if (fstat(fileno(file), &st) < 0)
+ 		goto close_write;
+ 
+-	if (st.st_size != b->pos)
++	if (st.st_size != (off_t)b->pos)
+ 		goto close_write;
+ 
+ 	tmp = NOFAIL(malloc(b->pos));
+diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
+index 51207e4..f7d603d 100644
+--- a/scripts/mod/modpost.h
++++ b/scripts/mod/modpost.h
+@@ -92,15 +92,15 @@ void *do_nofail(void *ptr, const char *expr);
+ 
+ struct buffer {
+ 	char *p;
+-	int pos;
+-	int size;
++	unsigned int pos;
++	unsigned int size;
+ };
+ 
+ void __attribute__((format(printf, 2, 3)))
+ buf_printf(struct buffer *buf, const char *fmt, ...);
+ 
+ void
+-buf_write(struct buffer *buf, const char *s, int len);
++buf_write(struct buffer *buf, const char *s, unsigned int len);
+ 
+ struct module {
+ 	struct module *next;
+diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
+index deb2994..af4f63e8 100644
+--- a/scripts/mod/sumversion.c
++++ b/scripts/mod/sumversion.c
+@@ -470,7 +470,7 @@ static void write_version(const char *filename, const char *sum,
+ 		goto out;
+ 	}
+ 
+-	if (write(fd, sum, strlen(sum)+1) != strlen(sum)+1) {
++	if (write(fd, sum, strlen(sum)+1) != (ssize_t)strlen(sum)+1) {
+ 		warn("writing sum in %s failed: %s\n",
+ 			filename, strerror(errno));
+ 		goto out;
+diff --git a/scripts/module-common.lds b/scripts/module-common.lds
+index 0865b3e..7235dd4 100644
+--- a/scripts/module-common.lds
++++ b/scripts/module-common.lds
+@@ -6,6 +6,10 @@
+ SECTIONS {
+ 	/DISCARD/ : { *(.discard) }
+ 
++	.rodata : {
++		*(.rodata) *(.rodata.*)
++		*(.data..read_only)
++	}
+ 	__ksymtab		: { *(SORT(___ksymtab+*)) }
+ 	__ksymtab_gpl		: { *(SORT(___ksymtab_gpl+*)) }
+ 	__ksymtab_unused	: { *(SORT(___ksymtab_unused+*)) }
+diff --git a/scripts/package/Makefile b/scripts/package/Makefile
+index c5d4733..7c43eb4 100644
+--- a/scripts/package/Makefile
++++ b/scripts/package/Makefile
+@@ -46,7 +46,7 @@ rpm-pkg rpm: FORCE
+ 	ln -sf $(srctree) $(KERNELPATH)
+ 	$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
+ 	$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --save-scmversion
+-	tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(TAR_CONTENT)
++	tar --owner=root --group=root -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(TAR_CONTENT)
+ 	rm $(KERNELPATH)
+ 	rm -f $(objtree)/.scmversion
+ 	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
+diff --git a/scripts/package/builddeb b/scripts/package/builddeb
+index 152d4d2..791684c 100644
+--- a/scripts/package/builddeb
++++ b/scripts/package/builddeb
+@@ -291,6 +291,7 @@ fi
+ (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
+ (cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
+ (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
++(cd $objtree; find tools/gcc -name \*.so >> "$objtree/debian/hdrobjfiles")
+ destdir=$kernel_headers_dir/usr/src/linux-headers-$version
+ mkdir -p "$destdir"
+ (cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
+diff --git a/scripts/package/mkspec b/scripts/package/mkspec
+index 1395760..bca2734 100755
+--- a/scripts/package/mkspec
++++ b/scripts/package/mkspec
+@@ -121,29 +121,40 @@ echo 'rm -f $RPM_BUILD_ROOT'"/lib/modules/$KERNELRELEASE/{build,source}"
+ echo "mkdir -p "'$RPM_BUILD_ROOT'"/usr/src/kernels/$KERNELRELEASE"
+ echo "EXCLUDES=\"$RCS_TAR_IGNORE --exclude .tmp_versions --exclude=*vmlinux* --exclude=*.o --exclude=*.ko --exclude=*.cmd --exclude=Documentation --exclude=firmware --exclude .config.old --exclude .missing-syscalls.d\""
+ echo "tar "'$EXCLUDES'" -cf- . | (cd "'$RPM_BUILD_ROOT'"/usr/src/kernels/$KERNELRELEASE;tar xvf -)"
+-echo 'cd $RPM_BUILD_ROOT'"/lib/modules/$KERNELRELEASE"
+-echo "ln -sf /usr/src/kernels/$KERNELRELEASE build"
+-echo "ln -sf /usr/src/kernels/$KERNELRELEASE source"
+ 
+ echo ""
+ echo "%clean"
+ echo 'rm -rf $RPM_BUILD_ROOT'
+ echo ""
++echo "%pre"
++echo 'chmod -f 0500 /boot'
++echo 'if [ -d /lib/modules ]; then'
++echo 'chmod -f 0500 /lib/modules'
++echo 'fi'
++echo 'if [ -d /lib32/modules ]; then'
++echo 'chmod -f 0500 /lib32/modules'
++echo 'fi'
++echo 'if [ -d /lib64/modules ]; then'
++echo 'chmod -f 0500 /lib64/modules'
++echo 'fi'
++echo ""
++echo "%post devel"
++echo "ln -sf /usr/src/kernels/$KERNELRELEASE /lib/modules/$KERNELRELEASE/build"
++echo "ln -sf /usr/src/kernels/$KERNELRELEASE /lib/modules/$KERNELRELEASE/source"
++echo ""
+ echo "%post"
+-echo "if [ -x /sbin/installkernel -a -r /boot/vmlinuz-$KERNELRELEASE -a -r /boot/System.map-$KERNELRELEASE ]; then"
+-echo "cp /boot/vmlinuz-$KERNELRELEASE /boot/vmlinuz-$KERNELRELEASE-rpm"
+-echo "cp /boot/System.map-$KERNELRELEASE /boot/System.map-$KERNELRELEASE-rpm"
+-echo "rm -f /boot/vmlinuz-$KERNELRELEASE /boot/System.map-$KERNELRELEASE"
+-echo "/sbin/installkernel $KERNELRELEASE /boot/vmlinuz-$KERNELRELEASE-rpm /boot/System.map-$KERNELRELEASE-rpm"
+-echo "rm -f /boot/vmlinuz-$KERNELRELEASE-rpm /boot/System.map-$KERNELRELEASE-rpm"
++echo "if [ -x /sbin/dracut ]; then"
++echo '/sbin/new-kernel-pkg --dracut --mkinitrd --depmod --install --make-default '"$KERNELRELEASE"' || exit $?'
++echo "else"
++echo '/sbin/new-kernel-pkg --mkinitrd --depmod --install --make-default '"$KERNELRELEASE"' || exit $?'
+ echo "fi"
+ echo ""
+ echo "%files"
+-echo '%defattr (-, root, root)'
++echo '%defattr (400, root, root, 500)'
+ echo "%dir /lib/modules"
+-echo "/lib/modules/$KERNELRELEASE"
+ echo "%exclude /lib/modules/$KERNELRELEASE/build"
+ echo "%exclude /lib/modules/$KERNELRELEASE/source"
++echo "/lib/modules/$KERNELRELEASE"
+ echo "/lib/firmware/$KERNELRELEASE"
+ echo "/boot/*"
+ echo ""
+@@ -152,8 +163,7 @@ echo '%defattr (-, root, root)'
+ echo "/usr/include"
+ echo ""
+ echo "%files devel"
+-echo '%defattr (-, root, root)'
++echo '%defattr (400, root, root, 500)'
++echo "%dir /lib/modules/$KERNELRELEASE"
+ echo "/usr/src/kernels/$KERNELRELEASE"
+-echo "/lib/modules/$KERNELRELEASE/build"
+-echo "/lib/modules/$KERNELRELEASE/source"
+ echo ""
+diff --git a/scripts/pnmtologo.c b/scripts/pnmtologo.c
+index 68bb4ef..2f419e1 100644
+--- a/scripts/pnmtologo.c
++++ b/scripts/pnmtologo.c
+@@ -244,14 +244,14 @@ static void write_header(void)
+     fprintf(out, " *  Linux logo %s\n", logoname);
+     fputs(" */\n\n", out);
+     fputs("#include <linux/linux_logo.h>\n\n", out);
+-    fprintf(out, "static unsigned char %s_data[] __initdata = {\n",
++    fprintf(out, "static unsigned char %s_data[] = {\n",
+ 	    logoname);
+ }
+ 
+ static void write_footer(void)
+ {
+     fputs("\n};\n\n", out);
+-    fprintf(out, "const struct linux_logo %s __initconst = {\n", logoname);
++    fprintf(out, "const struct linux_logo %s = {\n", logoname);
+     fprintf(out, "\t.type\t\t= %s,\n", logo_types[logo_type]);
+     fprintf(out, "\t.width\t\t= %d,\n", logo_width);
+     fprintf(out, "\t.height\t\t= %d,\n", logo_height);
+@@ -381,7 +381,7 @@ static void write_logo_clut224(void)
+     fputs("\n};\n\n", out);
+ 
+     /* write logo clut */
+-    fprintf(out, "static unsigned char %s_clut[] __initdata = {\n",
++    fprintf(out, "static unsigned char %s_clut[] = {\n",
+ 	    logoname);
+     write_hex_cnt = 0;
+     for (i = 0; i < logo_clutsize; i++) {
+diff --git a/scripts/sortextable.h b/scripts/sortextable.h
+index 8fac3fd..32ff38d 100644
+--- a/scripts/sortextable.h
++++ b/scripts/sortextable.h
+@@ -108,9 +108,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
+ 	const char *secstrtab;
+ 	const char *strtab;
+ 	char *extab_image;
+-	int extab_index = 0;
+-	int i;
+-	int idx;
++	unsigned int extab_index = 0;
++	unsigned int i;
++	unsigned int idx;
+ 	unsigned int num_sections;
+ 	unsigned int secindex_strings;
+ 
+diff --git a/security/Kconfig b/security/Kconfig
+index beb86b5..57a1143 100644
+--- a/security/Kconfig
++++ b/security/Kconfig
+@@ -4,6 +4,979 @@
+ 
+ menu "Security options"
+ 
++menu "Grsecurity"
++
++	config ARCH_TRACK_EXEC_LIMIT
++	bool
++
++	config PAX_KERNEXEC_PLUGIN
++	bool
++
++	config PAX_PER_CPU_PGD
++	bool
++
++	config TASK_SIZE_MAX_SHIFT
++	int
++	depends on X86_64
++	default 47 if !PAX_PER_CPU_PGD
++	default 42 if PAX_PER_CPU_PGD
++
++	config PAX_ENABLE_PAE
++	bool
++	default y if (X86_32 && (MPENTIUM4 || MK8 || MPSC || MCORE2 || MATOM))
++	
++	config PAX_USERCOPY_SLABS
++	bool
++
++config GRKERNSEC
++	bool "Grsecurity"
++	select CRYPTO
++	select CRYPTO_SHA256
++	select PROC_FS
++	select STOP_MACHINE
++	select TTY
++	select DEBUG_KERNEL
++	select DEBUG_LIST
++	help
++	  If you say Y here, you will be able to configure many features
++	  that will enhance the security of your system.  It is highly
++	  recommended that you say Y here and read through the help
++	  for each option so that you fully understand the features and
++	  can evaluate their usefulness for your machine.
++
++choice
++	prompt "Configuration Method"
++	depends on GRKERNSEC
++	default GRKERNSEC_CONFIG_CUSTOM
++	help
++
++config GRKERNSEC_CONFIG_AUTO
++	bool "Automatic"
++	help
++	  If you choose this configuration method, you'll be able to answer a small
++	  number of simple questions about how you plan to use this kernel.
++	  The settings of grsecurity and PaX will be automatically configured for
++	  the highest commonly-used settings within the provided constraints.
++
++	  If you require additional configuration, custom changes can still be made
++	  from the "custom configuration" menu.
++
++config GRKERNSEC_CONFIG_CUSTOM
++	bool "Custom"
++	help
++	  If you choose this configuration method, you'll be able to configure all
++	  grsecurity and PaX settings manually.  Via this method, no options are
++	  automatically enabled.
++
++	  Take note that if menuconfig is exited with this configuration method
++	  chosen, you will not be able to use the automatic configuration methods
++	  without starting again with a kernel configuration with no grsecurity
++	  or PaX options specified inside.
++
++endchoice
++
++choice
++	prompt "Usage Type"
++	depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
++	default GRKERNSEC_CONFIG_SERVER
++	help
++
++config GRKERNSEC_CONFIG_SERVER
++	bool "Server"
++	help
++	  Choose this option if you plan to use this kernel on a server.
++
++config GRKERNSEC_CONFIG_DESKTOP
++	bool "Desktop"
++	help
++	  Choose this option if you plan to use this kernel on a desktop.
++
++endchoice
++
++choice
++	prompt "Virtualization Type"
++	depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO)
++	default GRKERNSEC_CONFIG_VIRT_NONE
++	help
++
++config GRKERNSEC_CONFIG_VIRT_NONE
++	bool "None"
++	help
++	  Choose this option if this kernel will be run on bare metal.
++
++config GRKERNSEC_CONFIG_VIRT_GUEST
++	bool "Guest"
++	help
++	  Choose this option if this kernel will be run as a VM guest.
++
++config GRKERNSEC_CONFIG_VIRT_HOST
++	bool "Host"
++	help
++	  Choose this option if this kernel will be run as a VM host.
++
++endchoice
++
++choice
++	prompt "Virtualization Hardware"
++	depends on (GRKERNSEC && X86 && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
++	help
++
++config GRKERNSEC_CONFIG_VIRT_EPT
++	bool "EPT/RVI Processor Support"
++	depends on X86
++	help
++	  Choose this option if your CPU supports the EPT or RVI features of 2nd-gen
++	  hardware virtualization.  This allows for additional kernel hardening protections
++	  to operate without additional performance impact.
++
++	  To see if your Intel processor supports EPT, see:
++	  http://ark.intel.com/Products/VirtualizationTechnology
++	  (Most Core i3/5/7 support EPT)
++
++	  To see if your AMD processor supports RVI, see:
++	  http://support.amd.com/us/kbarticles/Pages/GPU120AMDRVICPUsHyperVWin8.aspx
++
++config GRKERNSEC_CONFIG_VIRT_SOFT
++	bool "First-gen/No Hardware Virtualization"
++	help
++	  Choose this option if you use an Atom/Pentium/Core 2 processor that either doesn't
++	  support hardware virtualization or doesn't support the EPT/RVI extensions.
++
++endchoice
++
++choice
++	prompt "Virtualization Software"
++	depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO && (GRKERNSEC_CONFIG_VIRT_GUEST || GRKERNSEC_CONFIG_VIRT_HOST))
++	help
++
++config GRKERNSEC_CONFIG_VIRT_XEN
++	bool "Xen"
++	help
++	  Choose this option if this kernel is running as a Xen guest or host.
++
++config GRKERNSEC_CONFIG_VIRT_VMWARE
++	bool "VMWare"
++	help
++	  Choose this option if this kernel is running as a VMWare guest or host.
++
++config GRKERNSEC_CONFIG_VIRT_KVM
++	bool "KVM"
++	help
++	  Choose this option if this kernel is running as a KVM guest or host.
++
++config GRKERNSEC_CONFIG_VIRT_VIRTUALBOX
++	bool "VirtualBox"
++	help
++	  Choose this option if this kernel is running as a VirtualBox guest or host.
++
++config GRKERNSEC_CONFIG_VIRT_HYPERV
++	bool "Hyper-V"
++	help
++	  Choose this option if this kernel is running as a Hyper-V guest.
++
++endchoice
++
++choice
++	prompt "Required Priorities"
++	depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
++	default GRKERNSEC_CONFIG_PRIORITY_PERF
++	help
++
++config GRKERNSEC_CONFIG_PRIORITY_PERF
++	bool "Performance"
++	help
++	  Choose this option if performance is of highest priority for this deployment
++	  of grsecurity.  Features like UDEREF on a 64bit kernel, kernel stack clearing,
++	  clearing of structures intended for userland, and freed memory sanitizing will
++	  be disabled.
++
++config GRKERNSEC_CONFIG_PRIORITY_SECURITY
++	bool "Security"
++	help
++	  Choose this option if security is of highest priority for this deployment of
++	  grsecurity.  UDEREF, kernel stack clearing, clearing of structures intended
++	  for userland, and freed memory sanitizing will be enabled for this kernel.
++	  In a worst-case scenario, these features can introduce a 20% performance hit
++	  (UDEREF on x64 contributing half of this hit).
++
++endchoice
++
++menu "Default Special Groups"
++depends on (GRKERNSEC && GRKERNSEC_CONFIG_AUTO)
++
++config GRKERNSEC_PROC_GID
++	int "GID exempted from /proc restrictions"
++	default 1001
++	help
++	  Setting this GID determines which group will be exempted from
++	  grsecurity's /proc restrictions, allowing users of the specified
++	  group  to view network statistics and the existence of other users'
++	  processes on the system.  This GID may also be chosen at boot time
++	  via "grsec_proc_gid=" on the kernel commandline.
++
++config GRKERNSEC_TPE_UNTRUSTED_GID
++        int "GID for TPE-untrusted users"
++        depends on GRKERNSEC_CONFIG_SERVER && GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT
++        default 1005
++        help
++	  Setting this GID determines which group untrusted users should
++	  be added to.  These users will be placed under grsecurity's Trusted Path
++	  Execution mechanism, preventing them from executing their own binaries.
++	  The users will only be able to execute binaries in directories owned and
++	  writable only by the root user.  If the sysctl option is enabled, a sysctl
++	  option with name "tpe_gid" is created.
++
++config GRKERNSEC_TPE_TRUSTED_GID
++        int "GID for TPE-trusted users"
++        depends on GRKERNSEC_CONFIG_SERVER && GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT
++        default 1005
++        help
++          Setting this GID determines what group TPE restrictions will be
++          *disabled* for.  If the sysctl option is enabled, a sysctl option
++          with name "tpe_gid" is created.
++
++config GRKERNSEC_SYMLINKOWN_GID
++        int "GID for users with kernel-enforced SymlinksIfOwnerMatch"
++        depends on GRKERNSEC_CONFIG_SERVER
++        default 1006
++        help
++          Setting this GID determines what group kernel-enforced
++          SymlinksIfOwnerMatch will be enabled for.  If the sysctl option
++          is enabled, a sysctl option with name "symlinkown_gid" is created.
++
++
++endmenu
++
++menu "Customize Configuration"
++depends on GRKERNSEC
++
++menu "PaX"
++
++config PAX
++	bool "Enable various PaX features"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS || PARISC || PPC || SPARC || X86)
++	help
++	  This allows you to enable various PaX features.  PaX adds
++	  intrusion prevention mechanisms to the kernel that reduce
++	  the risks posed by exploitable memory corruption bugs.
++
++menu "PaX Control"
++	depends on PAX
++
++config PAX_SOFTMODE
++	bool 'Support soft mode'
++	help
++	  Enabling this option will allow you to run PaX in soft mode, that
++	  is, PaX features will not be enforced by default, only on executables
++	  marked explicitly.  You must also enable PT_PAX_FLAGS or XATTR_PAX_FLAGS
++	  support as they are the only way to mark executables for soft mode use.
++
++	  Soft mode can be activated by using the "pax_softmode=1" kernel command
++	  line option on boot.  Furthermore you can control various PaX features
++	  at runtime via the entries in /proc/sys/kernel/pax.
++
++config PAX_EI_PAX
++	bool 'Use legacy ELF header marking'
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  Enabling this option will allow you to control PaX features on
++	  a per executable basis via the 'chpax' utility available at
++	  http://pax.grsecurity.net/.  The control flags will be read from
++	  an otherwise reserved part of the ELF header.  This marking has
++	  numerous drawbacks (no support for soft-mode, toolchain does not
++	  know about the non-standard use of the ELF header) therefore it
++	  has been deprecated in favour of PT_PAX_FLAGS and XATTR_PAX_FLAGS
++	  support.
++
++	  Note that if you enable PT_PAX_FLAGS or XATTR_PAX_FLAGS marking
++	  support as well, they will override the legacy EI_PAX marks.
++
++	  If you enable none of the marking options then all applications
++	  will run with PaX enabled on them by default.
++
++config PAX_PT_PAX_FLAGS
++	bool 'Use ELF program header marking'
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  Enabling this option will allow you to control PaX features on
++	  a per executable basis via the 'paxctl' utility available at
++	  http://pax.grsecurity.net/.  The control flags will be read from
++	  a PaX specific ELF program header (PT_PAX_FLAGS).  This marking
++	  has the benefits of supporting both soft mode and being fully
++	  integrated into the toolchain (the binutils patch is available
++	  from http://pax.grsecurity.net).
++
++	  Note that if you enable the legacy EI_PAX marking support as well,
++	  the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks.
++
++	  If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
++	  must make sure that the marks are the same if a binary has both marks.
++
++	  If you enable none of the marking options then all applications
++	  will run with PaX enabled on them by default.
++
++config PAX_XATTR_PAX_FLAGS
++	bool 'Use filesystem extended attributes marking'
++	default y if GRKERNSEC_CONFIG_AUTO
++	select CIFS_XATTR if CIFS
++	select EXT2_FS_XATTR if EXT2_FS
++	select EXT3_FS_XATTR if EXT3_FS
++	select F2FS_FS_XATTR if F2FS_FS
++	select JFFS2_FS_XATTR if JFFS2_FS
++	select REISERFS_FS_XATTR if REISERFS_FS
++	select SQUASHFS_XATTR if SQUASHFS
++	select TMPFS_XATTR if TMPFS
++	help
++	  Enabling this option will allow you to control PaX features on
++	  a per executable basis via the 'setfattr' utility.  The control
++	  flags will be read from the user.pax.flags extended attribute of
++	  the file.  This marking has the benefit of supporting binary-only
++	  applications that self-check themselves (e.g., skype) and would
++	  not tolerate chpax/paxctl changes.  The main drawback is that
++	  extended attributes are not supported by some filesystems (e.g.,
++	  isofs, udf, vfat) so copying files through such filesystems will
++	  lose the extended attributes and these PaX markings.
++
++	  Note that if you enable the legacy EI_PAX marking support as well,
++	  the EI_PAX marks will be overridden by the XATTR_PAX_FLAGS marks.
++
++	  If you enable both PT_PAX_FLAGS and XATTR_PAX_FLAGS support then you
++	  must make sure that the marks are the same if a binary has both marks.
++
++	  If you enable none of the marking options then all applications
++	  will run with PaX enabled on them by default.
++
++choice
++	prompt 'MAC system integration'
++	default PAX_HAVE_ACL_FLAGS
++	help
++	  Mandatory Access Control systems have the option of controlling
++	  PaX flags on a per executable basis, choose the method supported
++	  by your particular system.
++
++	  - "none": if your MAC system does not interact with PaX,
++	  - "direct": if your MAC system defines pax_set_initial_flags() itself,
++	  - "hook": if your MAC system uses the pax_set_initial_flags_func callback.
++
++	  NOTE: this option is for developers/integrators only.
++
++	config PAX_NO_ACL_FLAGS
++		bool 'none'
++
++	config PAX_HAVE_ACL_FLAGS
++		bool 'direct'
++
++	config PAX_HOOK_ACL_FLAGS
++		bool 'hook'
++endchoice
++
++endmenu
++
++menu "Non-executable pages"
++	depends on PAX
++
++config PAX_NOEXEC
++	bool "Enforce non-executable pages"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on ALPHA || (ARM && (CPU_V6 || CPU_V6K || CPU_V7)) || IA64 || MIPS || PARISC || PPC || S390 || SPARC || X86
++	help
++	  By design some architectures do not allow for protecting memory
++	  pages against execution or even if they do, Linux does not make
++	  use of this feature.  In practice this means that if a page is
++	  readable (such as the stack or heap) it is also executable.
++
++	  There is a well known exploit technique that makes use of this
++	  fact and a common programming mistake where an attacker can
++	  introduce code of his choice somewhere in the attacked program's
++	  memory (typically the stack or the heap) and then execute it.
++
++	  If the attacked program was running with different (typically
++	  higher) privileges than that of the attacker, then he can elevate
++	  his own privilege level (e.g. get a root shell, write to files for
++	  which he does not have write access to, etc).
++
++	  Enabling this option will let you choose from various features
++	  that prevent the injection and execution of 'foreign' code in
++	  a program.
++
++	  This will also break programs that rely on the old behaviour and
++	  expect that dynamically allocated memory via the malloc() family
++	  of functions is executable (which it is not).  Notable examples
++	  are the XFree86 4.x server, the java runtime and wine.
++
++config PAX_PAGEEXEC
++	bool "Paging based non-executable pages"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MATOM || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7)
++	select ARCH_TRACK_EXEC_LIMIT if X86_32
++	help
++	  This implementation is based on the paging feature of the CPU.
++	  On i386 without hardware non-executable bit support there is a
++	  variable but usually low performance impact, however on Intel's
++	  P4 core based CPUs it is very high so you should not enable this
++	  for kernels meant to be used on such CPUs.
++
++	  On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386
++	  with hardware non-executable bit support there is no performance
++	  impact, on ppc the impact is negligible.
++
++	  Note that several architectures require various emulations due to
++	  badly designed userland ABIs, this will cause a performance impact
++	  but will disappear as soon as userland is fixed. For example, ppc
++	  userland MUST have been built with secure-plt by a recent toolchain.
++
++config PAX_SEGMEXEC
++	bool "Segmentation based non-executable pages"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on PAX_NOEXEC && X86_32
++	help
++	  This implementation is based on the segmentation feature of the
++	  CPU and has a very small performance impact, however applications
++	  will be limited to a 1.5 GB address space instead of the normal
++	  3 GB.
++
++config PAX_EMUTRAMP
++	bool "Emulate trampolines"
++	default y if PARISC || GRKERNSEC_CONFIG_AUTO
++	depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || X86)
++	help
++	  There are some programs and libraries that for one reason or
++	  another attempt to execute special small code snippets from
++	  non-executable memory pages.  Most notable examples are the
++	  signal handler return code generated by the kernel itself and
++	  the GCC trampolines.
++
++	  If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then
++	  such programs will no longer work under your kernel.
++
++	  As a remedy you can say Y here and use the 'chpax' or 'paxctl'
++	  utilities to enable trampoline emulation for the affected programs
++	  yet still have the protection provided by the non-executable pages.
++
++	  On parisc you MUST enable this option and EMUSIGRT as well, otherwise
++	  your system will not even boot.
++
++	  Alternatively you can say N here and use the 'chpax' or 'paxctl'
++	  utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC
++	  for the affected files.
++
++	  NOTE: enabling this feature *may* open up a loophole in the
++	  protection provided by non-executable pages that an attacker
++	  could abuse.  Therefore the best solution is to not have any
++	  files on your system that would require this option.  This can
++	  be achieved by not using libc5 (which relies on the kernel
++	  signal handler return code) and not using or rewriting programs
++	  that make use of the nested function implementation of GCC.
++	  Skilled users can just fix GCC itself so that it implements
++	  nested function calls in a way that does not interfere with PaX.
++
++config PAX_EMUSIGRT
++	bool "Automatically emulate sigreturn trampolines"
++	depends on PAX_EMUTRAMP && PARISC
++	default y
++	help
++	  Enabling this option will have the kernel automatically detect
++	  and emulate signal return trampolines executing on the stack
++	  that would otherwise lead to task termination.
++
++	  This solution is intended as a temporary one for users with
++	  legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17,
++	  Modula-3 runtime, etc) or executables linked to such, basically
++	  everything that does not specify its own SA_RESTORER function in
++	  normal executable memory like glibc 2.1+ does.
++
++	  On parisc you MUST enable this option, otherwise your system will
++	  not even boot.
++
++	  NOTE: this feature cannot be disabled on a per executable basis
++	  and since it *does* open up a loophole in the protection provided
++	  by non-executable pages, the best solution is to not have any
++	  files on your system that would require this option.
++
++config PAX_MPROTECT
++	bool "Restrict mprotect()"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on (PAX_PAGEEXEC || PAX_SEGMEXEC)
++	help
++	  Enabling this option will prevent programs from
++	   - changing the executable status of memory pages that were
++	     not originally created as executable,
++	   - making read-only executable pages writable again,
++	   - creating executable pages from anonymous memory,
++	   - making read-only-after-relocations (RELRO) data pages writable again.
++
++	  You should say Y here to complete the protection provided by
++	  the enforcement of non-executable pages.
++
++	  NOTE: you can use the 'chpax' or 'paxctl' utilities to control
++	  this feature on a per file basis.
++
++config PAX_MPROTECT_COMPAT
++	bool "Use legacy/compat protection demoting (read help)"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
++	depends on PAX_MPROTECT
++	help
++	  The current implementation of PAX_MPROTECT denies RWX allocations/mprotects
++	  by sending the proper error code to the application.  For some broken 
++	  userland, this can cause problems with Python or other applications.  The
++	  current implementation however allows for applications like clamav to
++	  detect if JIT compilation/execution is allowed and to fall back gracefully
++	  to an interpreter-based mode if it does not.  While we encourage everyone
++	  to use the current implementation as-is and push upstream to fix broken
++	  userland (note that the RWX logging option can assist with this), in some
++	  environments this may not be possible.  Having to disable MPROTECT
++	  completely on certain binaries reduces the security benefit of PaX,
++	  so this option is provided for those environments to revert to the old
++	  behavior.
++	  
++config PAX_ELFRELOCS
++	bool "Allow ELF text relocations (read help)"
++	depends on PAX_MPROTECT
++	default n
++	help
++	  Non-executable pages and mprotect() restrictions are effective
++	  in preventing the introduction of new executable code into an
++	  attacked task's address space.  There remain only two venues
++	  for this kind of attack: if the attacker can execute already
++	  existing code in the attacked task then he can either have it
++	  create and mmap() a file containing his code or have it mmap()
++	  an already existing ELF library that does not have position
++	  independent code in it and use mprotect() on it to make it
++	  writable and copy his code there.  While protecting against
++	  the former approach is beyond PaX, the latter can be prevented
++	  by having only PIC ELF libraries on one's system (which do not
++	  need to relocate their code).  If you are sure this is your case,
++	  as is the case with all modern Linux distributions, then leave
++	  this option disabled.  You should say 'n' here.
++
++config PAX_ETEXECRELOCS
++	bool "Allow ELF ET_EXEC text relocations"
++	depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC)
++	select PAX_ELFRELOCS
++	default y
++	help
++	  On some architectures there are incorrectly created applications
++	  that require text relocations and would not work without enabling
++	  this option.  If you are an alpha, ia64 or parisc user, you should
++	  enable this option and disable it once you have made sure that
++	  none of your applications need it.
++
++config PAX_EMUPLT
++	bool "Automatically emulate ELF PLT"
++	depends on PAX_MPROTECT && (ALPHA || PARISC || SPARC)
++	default y
++	help
++	  Enabling this option will have the kernel automatically detect
++	  and emulate the Procedure Linkage Table entries in ELF files.
++	  On some architectures such entries are in writable memory, and
++	  become non-executable leading to task termination.  Therefore
++	  it is mandatory that you enable this option on alpha, parisc,
++	  sparc and sparc64, otherwise your system would not even boot.
++
++	  NOTE: this feature *does* open up a loophole in the protection
++	  provided by the non-executable pages, therefore the proper
++	  solution is to modify the toolchain to produce a PLT that does
++	  not need to be writable.
++
++config PAX_DLRESOLVE
++	bool 'Emulate old glibc resolver stub'
++	depends on PAX_EMUPLT && SPARC
++	default n
++	help
++	  This option is needed if userland has an old glibc (before 2.4)
++	  that puts a 'save' instruction into the runtime generated resolver
++	  stub that needs special emulation.
++
++config PAX_KERNEXEC
++	bool "Enforce non-executable kernel pages"
++	default y if GRKERNSEC_CONFIG_AUTO && (!X86 || GRKERNSEC_CONFIG_VIRT_NONE || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_GUEST) || (GRKERNSEC_CONFIG_VIRT_EPT && GRKERNSEC_CONFIG_VIRT_KVM))
++	depends on (X86 || (ARM && (CPU_V6 || CPU_V6K || CPU_V7) && !(ARM_LPAE && MODULES))) && !XEN
++	select PAX_PER_CPU_PGD if X86_64 || (X86_32 && X86_PAE)
++	select PAX_KERNEXEC_PLUGIN if X86_64
++	help
++	  This is the kernel land equivalent of PAGEEXEC and MPROTECT,
++	  that is, enabling this option will make it harder to inject
++	  and execute 'foreign' code in kernel memory itself.
++
++	  Note that on amd64, CONFIG_EFI enabled with "efi=old_map" on
++	  the kernel command-line will result in an RWX physical map.
++
++	  Likewise, the EFI runtime services are necessarily mapped as
++	  RWX.  If CONFIG_EFI is enabled on an EFI-capable system, it
++	  is recommended that you boot with "noefi" on the kernel
++	  command-line if possible to eliminate the mapping.
++
++choice
++	prompt "Return Address Instrumentation Method"
++	default PAX_KERNEXEC_PLUGIN_METHOD_BTS
++	depends on PAX_KERNEXEC_PLUGIN
++	help
++	  Select the method used to instrument function pointer dereferences.
++	  Note that binary modules cannot be instrumented by this approach.
++
++	  Note that the implementation requires a gcc with plugin support,
++	  i.e., gcc 4.5 or newer.  You may need to install the supporting
++	  headers explicitly in addition to the normal gcc package.
++
++	config PAX_KERNEXEC_PLUGIN_METHOD_BTS
++		bool "bts"
++		help
++		  This method is compatible with binary only modules but has
++		  a higher runtime overhead.
++
++	config PAX_KERNEXEC_PLUGIN_METHOD_OR
++		bool "or"
++		depends on !PARAVIRT
++		help
++		  This method is incompatible with binary only modules but has
++		  a lower runtime overhead.
++endchoice
++
++config PAX_KERNEXEC_PLUGIN_METHOD
++	string
++	default "bts" if PAX_KERNEXEC_PLUGIN_METHOD_BTS
++	default "or" if PAX_KERNEXEC_PLUGIN_METHOD_OR
++	default ""
++
++config PAX_KERNEXEC_MODULE_TEXT
++	int "Minimum amount of memory reserved for module code"
++	default "8" if (!GRKERNSEC_CONFIG_AUTO || GRKERNSEC_CONFIG_SERVER)
++	default "12" if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_DESKTOP)
++	depends on PAX_KERNEXEC && X86_32
++	help
++	  Due to implementation details the kernel must reserve a fixed
++	  amount of memory for runtime allocated code (such as modules)
++	  at compile time that cannot be changed at runtime.  Here you
++	  can specify the minimum amount in MB that will be reserved.
++	  Due to the same implementation details this size will always
++	  be rounded up to the next 2/4 MB boundary (depends on PAE) so
++	  the actually available memory for runtime allocated code will
++	  usually be more than this minimum.
++
++	  The default 4 MB should be enough for most users but if you have
++	  an excessive number of modules (e.g., most distribution configs
++	  compile many drivers as modules) or use huge modules such as
++	  nvidia's kernel driver, you will need to adjust this amount.
++	  A good rule of thumb is to look at your currently loaded kernel
++	  modules and add up their sizes.
++
++endmenu
++
++menu "Address Space Layout Randomization"
++	depends on PAX
++
++config PAX_ASLR
++	bool "Address Space Layout Randomization"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  Many if not most exploit techniques rely on the knowledge of
++	  certain addresses in the attacked program.  The following options
++	  will allow the kernel to apply a certain amount of randomization
++	  to specific parts of the program thereby forcing an attacker to
++	  guess them in most cases.  Any failed guess will most likely crash
++	  the attacked program which allows the kernel to detect such attempts
++	  and react on them.  PaX itself provides no reaction mechanisms,
++	  instead it is strongly encouraged that you make use of grsecurity's
++	  (http://www.grsecurity.net/) built-in crash detection features or
++	  develop one yourself.
++
++	  By saying Y here you can choose to randomize the following areas:
++	   - top of the task's kernel stack
++	   - top of the task's userland stack
++	   - base address for mmap() requests that do not specify one
++	     (this includes all libraries)
++	   - base address of the main executable
++
++	  It is strongly recommended to say Y here as address space layout
++	  randomization has negligible impact on performance yet it provides
++	  a very effective protection.
++
++	  NOTE: you can use the 'chpax' or 'paxctl' utilities to control
++	  this feature on a per file basis.
++
++config PAX_RANDKSTACK
++	bool "Randomize kernel stack base"
++	default y if GRKERNSEC_CONFIG_AUTO && !(GRKERNSEC_CONFIG_VIRT_HOST && GRKERNSEC_CONFIG_VIRT_VIRTUALBOX)
++	depends on X86_TSC && X86
++	help
++	  By saying Y here the kernel will randomize every task's kernel
++	  stack on every system call.  This will not only force an attacker
++	  to guess it but also prevent him from making use of possible
++	  leaked information about it.
++
++	  Since the kernel stack is a rather scarce resource, randomization
++	  may cause unexpected stack overflows, therefore you should very
++	  carefully test your system.  Note that once enabled in the kernel
++	  configuration, this feature cannot be disabled on a per file basis.
++
++config PAX_RANDUSTACK
++	bool
++
++config PAX_RANDMMAP
++	bool "Randomize user stack and mmap() bases"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on PAX_ASLR
++	select PAX_RANDUSTACK
++	help
++	  By saying Y here the kernel will randomize every task's userland
++	  stack and use a randomized base address for mmap() requests that
++	  do not specify one themselves.
++
++	  The stack randomization is done in two steps where the second
++	  one may apply a big amount of shift to the top of the stack and
++	  cause problems for programs that want to use lots of memory (more
++	  than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is).
++
++	  As a result of mmap randomization all dynamically loaded libraries
++	  will appear at random addresses and therefore be harder to exploit
++	  by a technique where an attacker attempts to execute library code
++	  for his purposes (e.g. spawn a shell from an exploited program that
++	  is running at an elevated privilege level).
++
++	  Furthermore, if a program is relinked as a dynamic ELF file, its
++	  base address will be randomized as well, completing the full
++	  randomization of the address space layout.  Attacking such programs
++	  becomes a guess game.  You can find an example of doing this at
++	  http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at
++	  http://www.grsecurity.net/grsec-gcc-specs.tar.gz .
++
++	  NOTE: you can use the 'chpax' or 'paxctl' utilities to control this
++	  feature on a per file basis.
++
++endmenu
++
++menu "Miscellaneous hardening features"
++
++config PAX_MEMORY_SANITIZE
++	bool "Sanitize all freed memory"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
++	help
++	  By saying Y here the kernel will erase memory pages and slab objects
++	  as soon as they are freed.  This in turn reduces the lifetime of data
++	  stored in them, making it less likely that sensitive information such
++	  as passwords, cryptographic secrets, etc stay in memory for too long.
++
++	  This is especially useful for programs whose runtime is short, long
++	  lived processes and the kernel itself benefit from this as long as
++	  they ensure timely freeing of memory that may hold sensitive
++	  information.
++
++	  A nice side effect of the sanitization of slab objects is the
++	  reduction of possible info leaks caused by padding bytes within the
++	  leaky structures.  Use-after-free bugs for structures containing
++	  pointers can also be detected as dereferencing the sanitized pointer
++	  will generate an access violation.
++
++	  The tradeoff is performance impact, on a single CPU system kernel
++	  compilation sees a 3% slowdown, other systems and workloads may vary
++	  and you are advised to test this feature on your expected workload
++	  before deploying it.
++
++	  The slab sanitization feature excludes a few slab caches per default
++	  for performance reasons.  To extend the feature to cover those as
++	  well, pass "pax_sanitize_slab=full" as kernel command line parameter.
++
++	  To reduce the performance penalty by sanitizing pages only, albeit
++	  limiting the effectiveness of this feature at the same time, slab
++	  sanitization can be disabled with the kernel command line parameter
++	  "pax_sanitize_slab=off".
++
++	  Note that this feature does not protect data stored in live pages,
++	  e.g., process memory swapped to disk may stay there for a long time.
++
++config PAX_MEMORY_STACKLEAK
++	bool "Sanitize kernel stack"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
++	depends on X86
++	help
++	  By saying Y here the kernel will erase the kernel stack before it
++	  returns from a system call.  This in turn reduces the information
++	  that a kernel stack leak bug can reveal.
++
++	  Note that such a bug can still leak information that was put on
++	  the stack by the current system call (the one eventually triggering
++	  the bug) but traces of earlier system calls on the kernel stack
++	  cannot leak anymore.
++
++	  The tradeoff is performance impact: on a single CPU system kernel
++	  compilation sees a 1% slowdown, other systems and workloads may vary
++	  and you are advised to test this feature on your expected workload
++	  before deploying it.
++
++	  Note that the full feature requires a gcc with plugin support,
++	  i.e., gcc 4.5 or newer.  You may need to install the supporting
++	  headers explicitly in addition to the normal gcc package.  Using
++	  older gcc versions means that functions with large enough stack
++	  frames may leave uninitialized memory behind that may be exposed
++	  to a later syscall leaking the stack.
++
++config PAX_MEMORY_STRUCTLEAK
++	bool "Forcibly initialize local variables copied to userland"
++	default y if (GRKERNSEC_CONFIG_AUTO && GRKERNSEC_CONFIG_PRIORITY_SECURITY)
++	help
++	  By saying Y here the kernel will zero initialize some local
++	  variables that are going to be copied to userland.  This in
++	  turn prevents unintended information leakage from the kernel
++	  stack should later code forget to explicitly set all parts of
++	  the copied variable.
++
++	  The tradeoff is less performance impact than PAX_MEMORY_STACKLEAK
++	  at a much smaller coverage.
++
++	  Note that the implementation requires a gcc with plugin support,
++	  i.e., gcc 4.5 or newer.  You may need to install the supporting
++	  headers explicitly in addition to the normal gcc package.
++
++config PAX_MEMORY_UDEREF
++	bool "Prevent invalid userland pointer dereference"
++	default y if GRKERNSEC_CONFIG_AUTO && !(X86_64 && GRKERNSEC_CONFIG_PRIORITY_PERF) && (!X86 || GRKERNSEC_CONFIG_VIRT_NONE || GRKERNSEC_CONFIG_VIRT_EPT)
++	depends on (X86 || (ARM && (CPU_V6 || CPU_V6K || CPU_V7) && !ARM_LPAE)) && !UML_X86 && !XEN
++	select PAX_PER_CPU_PGD if X86_64
++	help
++	  By saying Y here the kernel will be prevented from dereferencing
++	  userland pointers in contexts where the kernel expects only kernel
++	  pointers.  This is both a useful runtime debugging feature and a
++	  security measure that prevents exploiting a class of kernel bugs.
++
++	  The tradeoff is that some virtualization solutions may experience
++	  a huge slowdown and therefore you should not enable this feature
++	  for kernels meant to run in such environments.  Whether a given VM
++	  solution is affected or not is best determined by simply trying it
++	  out, the performance impact will be obvious right on boot as this
++	  mechanism engages from very early on.  A good rule of thumb is that
++	  VMs running on CPUs without hardware virtualization support (i.e.,
++	  the majority of IA-32 CPUs) will likely experience the slowdown.
++
++	  On X86_64 the kernel will make use of PCID support when available
++	  (Intel's Westmere, Sandy Bridge, etc) for better security (default)
++	  or performance impact.  Pass pax_weakuderef on the kernel command
++	  line to choose the latter.
++
++config PAX_REFCOUNT
++	bool "Prevent various kernel object reference counter overflows"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on GRKERNSEC && ((ARM && (CPU_V6 || CPU_V6K || CPU_V7)) || MIPS || SPARC64 || X86)
++	help
++	  By saying Y here the kernel will detect and prevent overflowing
++	  various (but not all) kinds of object reference counters.  Such
++	  overflows can normally occur due to bugs only and are often, if
++	  not always, exploitable.
++
++	  The tradeoff is that data structures protected by an overflowed
++	  refcount will never be freed and therefore will leak memory.  Note
++	  that this leak also happens even without this protection but in
++	  that case the overflow can eventually trigger the freeing of the
++	  data structure while it is still being used elsewhere, resulting
++	  in the exploitable situation that this feature prevents.
++
++	  Since this has a negligible performance impact, you should enable
++	  this feature.
++
++config PAX_CONSTIFY_PLUGIN
++	bool "Automatically constify eligible structures"
++	default y
++	depends on !UML && PAX_KERNEXEC
++	help
++	  By saying Y here the compiler will automatically constify a class
++	  of types that contain only function pointers.  This reduces the
++	  kernel's attack surface and also produces a better memory layout.
++
++	  Note that the implementation requires a gcc with plugin support,
++	  i.e., gcc 4.5 or newer.  You may need to install the supporting
++	  headers explicitly in addition to the normal gcc package.
++ 
++	  Note that if some code really has to modify constified variables
++	  then the source code will have to be patched to allow it.  Examples
++	  can be found in PaX itself (the no_const attribute) and for some
++	  out-of-tree modules at http://www.grsecurity.net/~paxguy1/ .
++
++config PAX_USERCOPY
++	bool "Harden heap object copies between kernel and userland"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on ARM || IA64 || PPC || SPARC || X86
++	depends on GRKERNSEC && (SLAB || SLUB || SLOB)
++	select PAX_USERCOPY_SLABS
++	help
++	  By saying Y here the kernel will enforce the size of heap objects
++	  when they are copied in either direction between the kernel and
++	  userland, even if only a part of the heap object is copied.
++
++	  Specifically, this checking prevents information leaking from the
++	  kernel heap during kernel to userland copies (if the kernel heap
++	  object is otherwise fully initialized) and prevents kernel heap
++	  overflows during userland to kernel copies.
++
++	  Note that the current implementation provides the strictest bounds
++	  checks for the SLUB allocator.
++
++	  Enabling this option also enables per-slab cache protection against
++	  data in a given cache being copied into/out of via userland
++	  accessors.  Though the whitelist of regions will be reduced over
++	  time, it notably protects important data structures like task structs.
++
++	  If frame pointers are enabled on x86, this option will also restrict
++	  copies into and out of the kernel stack to local variables within a
++	  single frame.
++
++	  Since this has a negligible performance impact, you should enable
++	  this feature.
++
++config PAX_USERCOPY_DEBUG
++	bool
++	depends on X86 && PAX_USERCOPY
++	default n
++
++config PAX_SIZE_OVERFLOW
++	bool "Prevent various integer overflows in function size parameters"
++	default y if GRKERNSEC_CONFIG_AUTO
++	depends on X86
++	help
++	  By saying Y here the kernel recomputes expressions of function
++	  arguments marked by a size_overflow attribute with double integer
++	  precision (DImode/TImode for 32/64 bit integer types).
++
++	  The recomputed argument is checked against TYPE_MAX and an event
++	  is logged on overflow and the triggering process is killed.
++
++	  Homepage: http://www.grsecurity.net/~ephox/overflow_plugin/
++
++	  Note that the implementation requires a gcc with plugin support,
++	  i.e., gcc 4.5 or newer.  You may need to install the supporting
++	  headers explicitly in addition to the normal gcc package.
++
++config PAX_LATENT_ENTROPY
++	bool "Generate some entropy during boot and runtime"
++	default y if GRKERNSEC_CONFIG_AUTO
++	help
++	  By saying Y here the kernel will instrument some kernel code to
++	  extract some entropy from both original and artificially created
++	  program state.  This will help especially embedded systems where
++	  there is little 'natural' source of entropy normally.  The cost
++	  is some slowdown of the boot process and fork and irq processing.
++
++	  When pax_extra_latent_entropy is passed on the kernel command line,
++	  entropy will be extracted from up to the first 4GB of RAM while the
++	  runtime memory allocator is being initialized.  This costs even more
++	  slowdown of the boot process.
++
++	  Note that the implementation requires a gcc with plugin support,
++	  i.e., gcc 4.5 or newer.  You may need to install the supporting
++	  headers explicitly in addition to the normal gcc package.
++
++	  Note that entropy extracted this way is not cryptographically
++	  secure!
++
++endmenu
++
++endmenu
++
++source grsecurity/Kconfig
++
++endmenu
++
++endmenu
++
+ source security/keys/Kconfig
+ 
+ config SECURITY_DMESG_RESTRICT
+@@ -103,7 +1076,7 @@ config INTEL_TXT
+ config LSM_MMAP_MIN_ADDR
+ 	int "Low address space for LSM to protect from user allocation"
+ 	depends on SECURITY && SECURITY_SELINUX
+-	default 32768 if ARM || (ARM64 && COMPAT)
++	default 32768 if ALPHA || ARM || (ARM64 && COMPAT) || PARISC || SPARC32
+ 	default 65536
+ 	help
+ 	  This is the portion of low virtual memory which should be protected
+diff --git a/security/apparmor/file.c b/security/apparmor/file.c
+index fdaa50c..2761dcb 100644
+--- a/security/apparmor/file.c
++++ b/security/apparmor/file.c
+@@ -348,8 +348,8 @@ static inline bool xindex_is_subset(u32 link, u32 target)
+ int aa_path_link(struct aa_profile *profile, struct dentry *old_dentry,
+ 		 struct path *new_dir, struct dentry *new_dentry)
+ {
+-	struct path link = { new_dir->mnt, new_dentry };
+-	struct path target = { new_dir->mnt, old_dentry };
++	struct path link = { .mnt = new_dir->mnt, .dentry = new_dentry };
++	struct path target = { .mnt = new_dir->mnt, .dentry = old_dentry };
+ 	struct path_cond cond = {
+ 		old_dentry->d_inode->i_uid,
+ 		old_dentry->d_inode->i_mode
+diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
+index 8fb1488..97130f8 100644
+--- a/security/apparmor/include/apparmor.h
++++ b/security/apparmor/include/apparmor.h
+@@ -66,7 +66,6 @@ extern int apparmor_initialized __initdata;
+ char *aa_split_fqname(char *args, char **ns_name);
+ void aa_info_message(const char *str);
+ void *__aa_kvmalloc(size_t size, gfp_t flags);
+-void kvfree(void *buffer);
+ 
+ static inline void *kvmalloc(size_t size)
+ {
+diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
+index 6968992..c1827e0 100644
+--- a/security/apparmor/lib.c
++++ b/security/apparmor/lib.c
+@@ -104,17 +104,3 @@ void *__aa_kvmalloc(size_t size, gfp_t flags)
+ 	}
+ 	return buffer;
+ }
+-
+-/**
+- * kvfree - free an allocation do by kvmalloc
+- * @buffer: buffer to free (MAYBE_NULL)
+- *
+- * Free a buffer allocated by kvmalloc
+- */
+-void kvfree(void *buffer)
+-{
+-	if (is_vmalloc_addr(buffer))
+-		vfree(buffer);
+-	else
+-		kfree(buffer);
+-}
+diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
+index 4257b7e..2d0732d 100644
+--- a/security/apparmor/lsm.c
++++ b/security/apparmor/lsm.c
+@@ -186,7 +186,7 @@ static int common_perm_dir_dentry(int op, struct path *dir,
+ 				  struct dentry *dentry, u32 mask,
+ 				  struct path_cond *cond)
+ {
+-	struct path path = { dir->mnt, dentry };
++	struct path path = { .mnt = dir->mnt, .dentry = dentry };
+ 
+ 	return common_perm(op, &path, mask, cond);
+ }
+@@ -203,7 +203,7 @@ static int common_perm_dir_dentry(int op, struct path *dir,
+ static int common_perm_mnt_dentry(int op, struct vfsmount *mnt,
+ 				  struct dentry *dentry, u32 mask)
+ {
+-	struct path path = { mnt, dentry };
++	struct path path = { .mnt = mnt, .dentry = dentry };
+ 	struct path_cond cond = { dentry->d_inode->i_uid,
+ 				  dentry->d_inode->i_mode
+ 	};
+@@ -325,8 +325,8 @@ static int apparmor_path_rename(struct path *old_dir, struct dentry *old_dentry,
+ 
+ 	profile = aa_current_profile();
+ 	if (!unconfined(profile)) {
+-		struct path old_path = { old_dir->mnt, old_dentry };
+-		struct path new_path = { new_dir->mnt, new_dentry };
++		struct path old_path = { .mnt = old_dir->mnt, .dentry = old_dentry };
++		struct path new_path = { .mnt = new_dir->mnt, .dentry = new_dentry };
+ 		struct path_cond cond = { old_dentry->d_inode->i_uid,
+ 					  old_dentry->d_inode->i_mode
+ 		};
+@@ -615,7 +615,7 @@ static int apparmor_task_setrlimit(struct task_struct *task,
+ 	return error;
+ }
+ 
+-static struct security_operations apparmor_ops = {
++static struct security_operations apparmor_ops __read_only = {
+ 	.name =				"apparmor",
+ 
+ 	.ptrace_access_check =		apparmor_ptrace_access_check,
+diff --git a/security/commoncap.c b/security/commoncap.c
+index 963dc59..12ebd0c 100644
+--- a/security/commoncap.c
++++ b/security/commoncap.c
+@@ -427,6 +427,32 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
+ 	return 0;
+ }
+ 
++/* returns:
++	1 for suid privilege
++	2 for sgid privilege
++	3 for fscap privilege
++*/
++int is_privileged_binary(const struct dentry *dentry)
++{
++	struct cpu_vfs_cap_data capdata;
++	struct inode *inode = dentry->d_inode;
++
++	if (!inode || S_ISDIR(inode->i_mode))
++		return 0;
++
++	if (inode->i_mode & S_ISUID)
++		return 1;
++	if ((inode->i_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))
++		return 2;
++
++	if (!get_vfs_caps_from_disk(dentry, &capdata)) {
++		if (!cap_isclear(capdata.inheritable) || !cap_isclear(capdata.permitted))
++			return 3;
++	}
++
++	return 0;
++}
++
+ /*
+  * Attempt to get the on-exec apply capability sets for an executable file from
+  * its xattrs and, if present, apply them to the proposed credentials being
+@@ -595,6 +621,9 @@ int cap_bprm_secureexec(struct linux_binprm *bprm)
+ 	const struct cred *cred = current_cred();
+ 	kuid_t root_uid = make_kuid(cred->user_ns, 0);
+ 
++	if (gr_acl_enable_at_secure())
++		return 1;
++
+ 	if (!uid_eq(cred->uid, root_uid)) {
+ 		if (bprm->cap_effective)
+ 			return 1;
+diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
+index f79fa8b..6161868 100644
+--- a/security/integrity/ima/ima.h
++++ b/security/integrity/ima/ima.h
+@@ -118,8 +118,8 @@ int ima_init_template(void);
+ extern spinlock_t ima_queue_lock;
+ 
+ struct ima_h_table {
+-	atomic_long_t len;	/* number of stored measurements in the list */
+-	atomic_long_t violations;
++	atomic_long_unchecked_t len;	/* number of stored measurements in the list */
++	atomic_long_unchecked_t violations;
+ 	struct hlist_head queue[IMA_MEASURE_HTABLE_SIZE];
+ };
+ extern struct ima_h_table ima_htable;
+diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
+index 025824a..2a681b1 100644
+--- a/security/integrity/ima/ima_api.c
++++ b/security/integrity/ima/ima_api.c
+@@ -137,7 +137,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
+ 	int result;
+ 
+ 	/* can overflow, only indicator */
+-	atomic_long_inc(&ima_htable.violations);
++	atomic_long_inc_unchecked(&ima_htable.violations);
+ 
+ 	result = ima_alloc_init_template(NULL, file, filename,
+ 					 NULL, 0, &entry);
+diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
+index 468a3ba..9af5cae 100644
+--- a/security/integrity/ima/ima_fs.c
++++ b/security/integrity/ima/ima_fs.c
+@@ -28,12 +28,12 @@
+ static int valid_policy = 1;
+ #define TMPBUFLEN 12
+ static ssize_t ima_show_htable_value(char __user *buf, size_t count,
+-				     loff_t *ppos, atomic_long_t *val)
++				     loff_t *ppos, atomic_long_unchecked_t *val)
+ {
+ 	char tmpbuf[TMPBUFLEN];
+ 	ssize_t len;
+ 
+-	len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read(val));
++	len = scnprintf(tmpbuf, TMPBUFLEN, "%li\n", atomic_long_read_unchecked(val));
+ 	return simple_read_from_buffer(buf, count, ppos, tmpbuf, len);
+ }
+ 
+diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
+index d85e997..6992813 100644
+--- a/security/integrity/ima/ima_queue.c
++++ b/security/integrity/ima/ima_queue.c
+@@ -80,7 +80,7 @@ static int ima_add_digest_entry(struct ima_template_entry *entry)
+ 	INIT_LIST_HEAD(&qe->later);
+ 	list_add_tail_rcu(&qe->later, &ima_measurements);
+ 
+-	atomic_long_inc(&ima_htable.len);
++	atomic_long_inc_unchecked(&ima_htable.len);
+ 	key = ima_hash_key(entry->digest);
+ 	hlist_add_head_rcu(&qe->hnext, &ima_htable.queue[key]);
+ 	return 0;
+diff --git a/security/keys/compat.c b/security/keys/compat.c
+index bbd32c7..c60c927 100644
+--- a/security/keys/compat.c
++++ b/security/keys/compat.c
+@@ -44,7 +44,7 @@ static long compat_keyctl_instantiate_key_iov(
+ 	if (ret == 0)
+ 		goto no_payload_free;
+ 
+-	ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
++	ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
+ err:
+ 	if (iov != iovstack)
+ 		kfree(iov);
+diff --git a/security/keys/internal.h b/security/keys/internal.h
+index 80b2aac..bb7ee65 100644
+--- a/security/keys/internal.h
++++ b/security/keys/internal.h
+@@ -253,7 +253,7 @@ extern long keyctl_instantiate_key_iov(key_serial_t,
+ extern long keyctl_invalidate_key(key_serial_t);
+ 
+ extern long keyctl_instantiate_key_common(key_serial_t,
+-					  const struct iovec *,
++					  const struct iovec __user *,
+ 					  unsigned, size_t, key_serial_t);
+ #ifdef CONFIG_PERSISTENT_KEYRINGS
+ extern long keyctl_get_persistent(uid_t, key_serial_t);
+diff --git a/security/keys/key.c b/security/keys/key.c
+index 6e21c11..9ed67ca 100644
+--- a/security/keys/key.c
++++ b/security/keys/key.c
+@@ -285,7 +285,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
+ 
+ 	atomic_set(&key->usage, 1);
+ 	init_rwsem(&key->sem);
+-	lockdep_set_class(&key->sem, &type->lock_class);
++	lockdep_set_class(&key->sem, (struct lock_class_key *)&type->lock_class);
+ 	key->index_key.type = type;
+ 	key->user = user;
+ 	key->quotalen = quotalen;
+@@ -1036,7 +1036,9 @@ int register_key_type(struct key_type *ktype)
+ 	struct key_type *p;
+ 	int ret;
+ 
+-	memset(&ktype->lock_class, 0, sizeof(ktype->lock_class));
++	pax_open_kernel();
++	memset((void *)&ktype->lock_class, 0, sizeof(ktype->lock_class));
++	pax_close_kernel();
+ 
+ 	ret = -EEXIST;
+ 	down_write(&key_types_sem);
+@@ -1048,7 +1050,7 @@ int register_key_type(struct key_type *ktype)
+ 	}
+ 
+ 	/* store the type */
+-	list_add(&ktype->link, &key_types_list);
++	pax_list_add((struct list_head *)&ktype->link, &key_types_list);
+ 
+ 	pr_notice("Key type %s registered\n", ktype->name);
+ 	ret = 0;
+@@ -1070,7 +1072,7 @@ EXPORT_SYMBOL(register_key_type);
+ void unregister_key_type(struct key_type *ktype)
+ {
+ 	down_write(&key_types_sem);
+-	list_del_init(&ktype->link);
++	pax_list_del_init((struct list_head *)&ktype->link);
+ 	downgrade_write(&key_types_sem);
+ 	key_gc_keytype(ktype);
+ 	pr_notice("Key type %s unregistered\n", ktype->name);
+@@ -1088,10 +1090,10 @@ void __init key_init(void)
+ 			0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
+ 
+ 	/* add the special key types */
+-	list_add_tail(&key_type_keyring.link, &key_types_list);
+-	list_add_tail(&key_type_dead.link, &key_types_list);
+-	list_add_tail(&key_type_user.link, &key_types_list);
+-	list_add_tail(&key_type_logon.link, &key_types_list);
++	pax_list_add_tail((struct list_head *)&key_type_keyring.link, &key_types_list);
++	pax_list_add_tail((struct list_head *)&key_type_dead.link, &key_types_list);
++	pax_list_add_tail((struct list_head *)&key_type_user.link, &key_types_list);
++	pax_list_add_tail((struct list_head *)&key_type_logon.link, &key_types_list);
+ 
+ 	/* record the root user tracking */
+ 	rb_link_node(&root_key_user.node,
+diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
+index cee72ce..e46074a 100644
+--- a/security/keys/keyctl.c
++++ b/security/keys/keyctl.c
+@@ -987,7 +987,7 @@ static int keyctl_change_reqkey_auth(struct key *key)
+ /*
+  * Copy the iovec data from userspace
+  */
+-static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
++static long copy_from_user_iovec(void *buffer, const struct iovec __user *iov,
+ 				 unsigned ioc)
+ {
+ 	for (; ioc > 0; ioc--) {
+@@ -1009,7 +1009,7 @@ static long copy_from_user_iovec(void *buffer, const struct iovec *iov,
+  * If successful, 0 will be returned.
+  */
+ long keyctl_instantiate_key_common(key_serial_t id,
+-				   const struct iovec *payload_iov,
++				   const struct iovec __user *payload_iov,
+ 				   unsigned ioc,
+ 				   size_t plen,
+ 				   key_serial_t ringid)
+@@ -1104,7 +1104,7 @@ long keyctl_instantiate_key(key_serial_t id,
+ 			[0].iov_len  = plen
+ 		};
+ 
+-		return keyctl_instantiate_key_common(id, iov, 1, plen, ringid);
++		return keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, 1, plen, ringid);
+ 	}
+ 
+ 	return keyctl_instantiate_key_common(id, NULL, 0, 0, ringid);
+@@ -1137,7 +1137,7 @@ long keyctl_instantiate_key_iov(key_serial_t id,
+ 	if (ret == 0)
+ 		goto no_payload_free;
+ 
+-	ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
++	ret = keyctl_instantiate_key_common(id, (const struct iovec __force_user *)iov, ioc, ret, ringid);
+ err:
+ 	if (iov != iovstack)
+ 		kfree(iov);
+diff --git a/security/keys/request_key.c b/security/keys/request_key.c
+index 3814119..2e8ebaa 100644
+--- a/security/keys/request_key.c
++++ b/security/keys/request_key.c
+@@ -432,6 +432,7 @@ link_check_failed:
+ 
+ link_prealloc_failed:
+ 	mutex_unlock(&user->cons_lock);
++	key_put(key);
+ 	kleave(" = %d [prelink]", ret);
+ 	return ret;
+ 
+diff --git a/security/min_addr.c b/security/min_addr.c
+index f728728..6457a0c 100644
+--- a/security/min_addr.c
++++ b/security/min_addr.c
+@@ -14,6 +14,7 @@ unsigned long dac_mmap_min_addr = CONFIG_DEFAULT_MMAP_MIN_ADDR;
+  */
+ static void update_mmap_min_addr(void)
+ {
++#ifndef SPARC
+ #ifdef CONFIG_LSM_MMAP_MIN_ADDR
+ 	if (dac_mmap_min_addr > CONFIG_LSM_MMAP_MIN_ADDR)
+ 		mmap_min_addr = dac_mmap_min_addr;
+@@ -22,6 +23,7 @@ static void update_mmap_min_addr(void)
+ #else
+ 	mmap_min_addr = dac_mmap_min_addr;
+ #endif
++#endif
+ }
+ 
+ /*
+diff --git a/security/security.c b/security/security.c
+index 919cad9..2127be1 100644
+--- a/security/security.c
++++ b/security/security.c
+@@ -33,8 +33,8 @@
+ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
+ 	CONFIG_DEFAULT_SECURITY;
+ 
+-static struct security_operations *security_ops;
+-static struct security_operations default_security_ops = {
++struct security_operations *security_ops __read_only;
++struct security_operations default_security_ops __read_only = {
+ 	.name	= "default",
+ };
+ 
+@@ -73,11 +73,6 @@ int __init security_init(void)
+ 	return 0;
+ }
+ 
+-void reset_security_ops(void)
+-{
+-	security_ops = &default_security_ops;
+-}
+-
+ /* Save user chosen LSM */
+ static int __init choose_lsm(char *str)
+ {
+diff --git a/security/selinux/avc.c b/security/selinux/avc.c
+index fc3e662..7844c60 100644
+--- a/security/selinux/avc.c
++++ b/security/selinux/avc.c
+@@ -59,7 +59,7 @@ struct avc_node {
+ struct avc_cache {
+ 	struct hlist_head	slots[AVC_CACHE_SLOTS]; /* head for avc_node->list */
+ 	spinlock_t		slots_lock[AVC_CACHE_SLOTS]; /* lock for writes */
+-	atomic_t		lru_hint;	/* LRU hint for reclaim scan */
++	atomic_unchecked_t	lru_hint;	/* LRU hint for reclaim scan */
+ 	atomic_t		active_nodes;
+ 	u32			latest_notif;	/* latest revocation notification */
+ };
+@@ -167,7 +167,7 @@ void __init avc_init(void)
+ 		spin_lock_init(&avc_cache.slots_lock[i]);
+ 	}
+ 	atomic_set(&avc_cache.active_nodes, 0);
+-	atomic_set(&avc_cache.lru_hint, 0);
++	atomic_set_unchecked(&avc_cache.lru_hint, 0);
+ 
+ 	avc_node_cachep = kmem_cache_create("avc_node", sizeof(struct avc_node),
+ 					     0, SLAB_PANIC, NULL);
+@@ -242,7 +242,7 @@ static inline int avc_reclaim_node(void)
+ 	spinlock_t *lock;
+ 
+ 	for (try = 0, ecx = 0; try < AVC_CACHE_SLOTS; try++) {
+-		hvalue = atomic_inc_return(&avc_cache.lru_hint) & (AVC_CACHE_SLOTS - 1);
++		hvalue = atomic_inc_return_unchecked(&avc_cache.lru_hint) & (AVC_CACHE_SLOTS - 1);
+ 		head = &avc_cache.slots[hvalue];
+ 		lock = &avc_cache.slots_lock[hvalue];
+ 
+diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
+index 47b5c69..4fc9b7f 100644
+--- a/security/selinux/hooks.c
++++ b/security/selinux/hooks.c
+@@ -95,8 +95,6 @@
+ #include "audit.h"
+ #include "avc_ss.h"
+ 
+-extern struct security_operations *security_ops;
+-
+ /* SECMARK reference count */
+ static atomic_t selinux_secmark_refcount = ATOMIC_INIT(0);
+ 
+@@ -5759,7 +5757,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer)
+ 
+ #endif
+ 
+-static struct security_operations selinux_ops = {
++static struct security_operations selinux_ops __read_only = {
+ 	.name =				"selinux",
+ 
+ 	.ptrace_access_check =		selinux_ptrace_access_check,
+@@ -6112,6 +6110,9 @@ static void selinux_nf_ip_exit(void)
+ #ifdef CONFIG_SECURITY_SELINUX_DISABLE
+ static int selinux_disabled;
+ 
++extern struct security_operations *security_ops;
++extern struct security_operations default_security_ops;
++
+ int selinux_disable(void)
+ {
+ 	if (ss_initialized) {
+@@ -6129,7 +6130,9 @@ int selinux_disable(void)
+ 	selinux_disabled = 1;
+ 	selinux_enabled = 0;
+ 
+-	reset_security_ops();
++	pax_open_kernel();
++	security_ops = &default_security_ops;
++	pax_close_kernel();
+ 
+ 	/* Try to destroy the avc node cache */
+ 	avc_disable();
+diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
+index 9f05847..7933395 100644
+--- a/security/selinux/include/xfrm.h
++++ b/security/selinux/include/xfrm.h
+@@ -46,7 +46,7 @@ static inline void selinux_xfrm_notify_policyload(void)
+ {
+ 	struct net *net;
+ 
+-	atomic_inc(&flow_cache_genid);
++	atomic_inc_unchecked(&flow_cache_genid);
+ 	rtnl_lock();
+ 	for_each_net(net)
+ 		rt_genid_bump_all(net);
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 14f52be..7352368 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3726,7 +3726,7 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
+ 	return 0;
+ }
+ 
+-struct security_operations smack_ops = {
++struct security_operations smack_ops __read_only = {
+ 	.name =				"smack",
+ 
+ 	.ptrace_access_check =		smack_ptrace_access_check,
+diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
+index 4003907..13a2b55 100644
+--- a/security/tomoyo/file.c
++++ b/security/tomoyo/file.c
+@@ -692,7 +692,7 @@ int tomoyo_path_number_perm(const u8 type, struct path *path,
+ {
+ 	struct tomoyo_request_info r;
+ 	struct tomoyo_obj_info obj = {
+-		.path1 = *path,
++		.path1 = { .mnt = path->mnt, .dentry = path->dentry },
+ 	};
+ 	int error = -ENOMEM;
+ 	struct tomoyo_path_info buf;
+@@ -740,7 +740,7 @@ int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
+ 	struct tomoyo_path_info buf;
+ 	struct tomoyo_request_info r;
+ 	struct tomoyo_obj_info obj = {
+-		.path1 = *path,
++		.path1 = { .mnt = path->mnt, .dentry = path->dentry },
+ 	};
+ 	int idx;
+ 
+@@ -786,7 +786,7 @@ int tomoyo_path_perm(const u8 operation, struct path *path, const char *target)
+ {
+ 	struct tomoyo_request_info r;
+ 	struct tomoyo_obj_info obj = {
+-		.path1 = *path,
++		.path1 = { .mnt = path->mnt, .dentry = path->dentry },
+ 	};
+ 	int error;
+ 	struct tomoyo_path_info buf;
+@@ -843,7 +843,7 @@ int tomoyo_mkdev_perm(const u8 operation, struct path *path,
+ {
+ 	struct tomoyo_request_info r;
+ 	struct tomoyo_obj_info obj = {
+-		.path1 = *path,
++		.path1 = { .mnt = path->mnt, .dentry = path->dentry },
+ 	};
+ 	int error = -ENOMEM;
+ 	struct tomoyo_path_info buf;
+@@ -890,8 +890,8 @@ int tomoyo_path2_perm(const u8 operation, struct path *path1,
+ 	struct tomoyo_path_info buf2;
+ 	struct tomoyo_request_info r;
+ 	struct tomoyo_obj_info obj = {
+-		.path1 = *path1,
+-		.path2 = *path2,
++		.path1 = { .mnt = path1->mnt, .dentry = path1->dentry },
++		.path2 = { .mnt = path2->mnt, .dentry = path2->dentry }
+ 	};
+ 	int idx;
+ 
+diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c
+index 390c646..f2f8db3 100644
+--- a/security/tomoyo/mount.c
++++ b/security/tomoyo/mount.c
+@@ -118,6 +118,10 @@ static int tomoyo_mount_acl(struct tomoyo_request_info *r,
+ 		   type == tomoyo_mounts[TOMOYO_MOUNT_MOVE]) {
+ 		need_dev = -1; /* dev_name is a directory */
+ 	} else {
++		if (!capable(CAP_SYS_ADMIN)) {
++			error = -EPERM;
++			goto out;
++		}
+ 		fstype = get_fs_type(type);
+ 		if (!fstype) {
+ 			error = -ENODEV;
+diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
+index f0b756e..8aa497b 100644
+--- a/security/tomoyo/tomoyo.c
++++ b/security/tomoyo/tomoyo.c
+@@ -146,7 +146,7 @@ static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
+  */
+ static int tomoyo_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
+ {
+-	struct path path = { mnt, dentry };
++	struct path path = { .mnt = mnt, .dentry = dentry };
+ 	return tomoyo_path_perm(TOMOYO_TYPE_GETATTR, &path, NULL);
+ }
+ 
+@@ -172,7 +172,7 @@ static int tomoyo_path_truncate(struct path *path)
+  */
+ static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
+ {
+-	struct path path = { parent->mnt, dentry };
++	struct path path = { .mnt = parent->mnt, .dentry = dentry };
+ 	return tomoyo_path_perm(TOMOYO_TYPE_UNLINK, &path, NULL);
+ }
+ 
+@@ -188,7 +188,7 @@ static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
+ static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
+ 			     umode_t mode)
+ {
+-	struct path path = { parent->mnt, dentry };
++	struct path path = { .mnt = parent->mnt, .dentry = dentry };
+ 	return tomoyo_path_number_perm(TOMOYO_TYPE_MKDIR, &path,
+ 				       mode & S_IALLUGO);
+ }
+@@ -203,7 +203,7 @@ static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
+  */
+ static int tomoyo_path_rmdir(struct path *parent, struct dentry *dentry)
+ {
+-	struct path path = { parent->mnt, dentry };
++	struct path path = { .mnt = parent->mnt, .dentry = dentry };
+ 	return tomoyo_path_perm(TOMOYO_TYPE_RMDIR, &path, NULL);
+ }
+ 
+@@ -219,7 +219,7 @@ static int tomoyo_path_rmdir(struct path *parent, struct dentry *dentry)
+ static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
+ 			       const char *old_name)
+ {
+-	struct path path = { parent->mnt, dentry };
++	struct path path = { .mnt = parent->mnt, .dentry = dentry };
+ 	return tomoyo_path_perm(TOMOYO_TYPE_SYMLINK, &path, old_name);
+ }
+ 
+@@ -236,7 +236,7 @@ static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
+ static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
+ 			     umode_t mode, unsigned int dev)
+ {
+-	struct path path = { parent->mnt, dentry };
++	struct path path = { .mnt = parent->mnt, .dentry = dentry };
+ 	int type = TOMOYO_TYPE_CREATE;
+ 	const unsigned int perm = mode & S_IALLUGO;
+ 
+@@ -275,8 +275,8 @@ static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
+ static int tomoyo_path_link(struct dentry *old_dentry, struct path *new_dir,
+ 			    struct dentry *new_dentry)
+ {
+-	struct path path1 = { new_dir->mnt, old_dentry };
+-	struct path path2 = { new_dir->mnt, new_dentry };
++	struct path path1 = { .mnt = new_dir->mnt, .dentry = old_dentry };
++	struct path path2 = { .mnt = new_dir->mnt, .dentry = new_dentry };
+ 	return tomoyo_path2_perm(TOMOYO_TYPE_LINK, &path1, &path2);
+ }
+ 
+@@ -295,8 +295,8 @@ static int tomoyo_path_rename(struct path *old_parent,
+ 			      struct path *new_parent,
+ 			      struct dentry *new_dentry)
+ {
+-	struct path path1 = { old_parent->mnt, old_dentry };
+-	struct path path2 = { new_parent->mnt, new_dentry };
++	struct path path1 = { .mnt = old_parent->mnt, .dentry = old_dentry };
++	struct path path2 = { .mnt = new_parent->mnt, .dentry = new_dentry };
+ 	return tomoyo_path2_perm(TOMOYO_TYPE_RENAME, &path1, &path2);
+ }
+ 
+@@ -424,7 +424,7 @@ static int tomoyo_sb_mount(const char *dev_name, struct path *path,
+  */
+ static int tomoyo_sb_umount(struct vfsmount *mnt, int flags)
+ {
+-	struct path path = { mnt, mnt->mnt_root };
++	struct path path = { .mnt = mnt, .dentry = mnt->mnt_root };
+ 	return tomoyo_path_perm(TOMOYO_TYPE_UMOUNT, &path, NULL);
+ }
+ 
+@@ -503,7 +503,7 @@ static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg,
+  * tomoyo_security_ops is a "struct security_operations" which is used for
+  * registering TOMOYO.
+  */
+-static struct security_operations tomoyo_security_ops = {
++static struct security_operations tomoyo_security_ops __read_only = {
+ 	.name                = "tomoyo",
+ 	.cred_alloc_blank    = tomoyo_cred_alloc_blank,
+ 	.cred_prepare        = tomoyo_cred_prepare,
+diff --git a/security/yama/Kconfig b/security/yama/Kconfig
+index 20ef514..4182bed 100644
+--- a/security/yama/Kconfig
++++ b/security/yama/Kconfig
+@@ -1,6 +1,6 @@
+ config SECURITY_YAMA
+ 	bool "Yama support"
+-	depends on SECURITY
++	depends on SECURITY && !GRKERNSEC
+ 	select SECURITYFS
+ 	select SECURITY_PATH
+ 	default n
+diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
+index 13c88fbc..f8c115e 100644
+--- a/security/yama/yama_lsm.c
++++ b/security/yama/yama_lsm.c
+@@ -365,7 +365,7 @@ int yama_ptrace_traceme(struct task_struct *parent)
+ }
+ 
+ #ifndef CONFIG_SECURITY_YAMA_STACKED
+-static struct security_operations yama_ops = {
++static struct security_operations yama_ops __read_only = {
+ 	.name =			"yama",
+ 
+ 	.ptrace_access_check =	yama_ptrace_access_check,
+@@ -376,28 +376,24 @@ static struct security_operations yama_ops = {
+ #endif
+ 
+ #ifdef CONFIG_SYSCTL
++static int zero __read_only;
++static int max_scope __read_only = YAMA_SCOPE_NO_ATTACH;
++
+ static int yama_dointvec_minmax(struct ctl_table *table, int write,
+ 				void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	int rc;
++	ctl_table_no_const yama_table;
+ 
+ 	if (write && !capable(CAP_SYS_PTRACE))
+ 		return -EPERM;
+ 
+-	rc = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+-	if (rc)
+-		return rc;
+-
++	yama_table = *table;
+ 	/* Lock the max value if it ever gets set. */
+-	if (write && *(int *)table->data == *(int *)table->extra2)
+-		table->extra1 = table->extra2;
+-
+-	return rc;
++	if (ptrace_scope == max_scope)
++		yama_table.extra1 = &max_scope;
++	return proc_dointvec_minmax(&yama_table, write, buffer, lenp, ppos);
+ }
+ 
+-static int zero;
+-static int max_scope = YAMA_SCOPE_NO_ATTACH;
+-
+ struct ctl_path yama_sysctl_path[] = {
+ 	{ .procname = "kernel", },
+ 	{ .procname = "yama", },
+diff --git a/sound/aoa/codecs/onyx.c b/sound/aoa/codecs/onyx.c
+index 4cedc69..e59d8a3 100644
+--- a/sound/aoa/codecs/onyx.c
++++ b/sound/aoa/codecs/onyx.c
+@@ -54,7 +54,7 @@ struct onyx {
+ 				spdif_locked:1,
+ 				analog_locked:1,
+ 				original_mute:2;
+-	int			open_count;
++	local_t			open_count;
+ 	struct codec_info	*codec_info;
+ 
+ 	/* mutex serializes concurrent access to the device
+@@ -753,7 +753,7 @@ static int onyx_open(struct codec_info_item *cii,
+ 	struct onyx *onyx = cii->codec_data;
+ 
+ 	mutex_lock(&onyx->mutex);
+-	onyx->open_count++;
++	local_inc(&onyx->open_count);
+ 	mutex_unlock(&onyx->mutex);
+ 
+ 	return 0;
+@@ -765,8 +765,7 @@ static int onyx_close(struct codec_info_item *cii,
+ 	struct onyx *onyx = cii->codec_data;
+ 
+ 	mutex_lock(&onyx->mutex);
+-	onyx->open_count--;
+-	if (!onyx->open_count)
++	if (local_dec_and_test(&onyx->open_count))
+ 		onyx->spdif_locked = onyx->analog_locked = 0;
+ 	mutex_unlock(&onyx->mutex);
+ 
+diff --git a/sound/aoa/codecs/onyx.h b/sound/aoa/codecs/onyx.h
+index ffd2025..df062c9 100644
+--- a/sound/aoa/codecs/onyx.h
++++ b/sound/aoa/codecs/onyx.h
+@@ -11,6 +11,7 @@
+ #include <linux/i2c.h>
+ #include <asm/pmac_low_i2c.h>
+ #include <asm/prom.h>
++#include <asm/local.h>
+ 
+ /* PCM3052 register definitions */
+ 
+diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
+index 4c1cc51..16040040 100644
+--- a/sound/core/oss/pcm_oss.c
++++ b/sound/core/oss/pcm_oss.c
+@@ -1189,10 +1189,10 @@ snd_pcm_sframes_t snd_pcm_oss_write3(struct snd_pcm_substream *substream, const
+ 		if (in_kernel) {
+ 			mm_segment_t fs;
+ 			fs = snd_enter_user();
+-			ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
++			ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
+ 			snd_leave_user(fs);
+ 		} else {
+-			ret = snd_pcm_lib_write(substream, (void __force __user *)ptr, frames);
++			ret = snd_pcm_lib_write(substream, (void __force_user *)ptr, frames);
+ 		}
+ 		if (ret != -EPIPE && ret != -ESTRPIPE)
+ 			break;
+@@ -1234,10 +1234,10 @@ snd_pcm_sframes_t snd_pcm_oss_read3(struct snd_pcm_substream *substream, char *p
+ 		if (in_kernel) {
+ 			mm_segment_t fs;
+ 			fs = snd_enter_user();
+-			ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
++			ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
+ 			snd_leave_user(fs);
+ 		} else {
+-			ret = snd_pcm_lib_read(substream, (void __force __user *)ptr, frames);
++			ret = snd_pcm_lib_read(substream, (void __force_user *)ptr, frames);
+ 		}
+ 		if (ret == -EPIPE) {
+ 			if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) {
+@@ -1337,7 +1337,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
+ 		struct snd_pcm_plugin_channel *channels;
+ 		size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8;
+ 		if (!in_kernel) {
+-			if (copy_from_user(runtime->oss.buffer, (const char __force __user *)buf, bytes))
++			if (copy_from_user(runtime->oss.buffer, (const char __force_user *)buf, bytes))
+ 				return -EFAULT;
+ 			buf = runtime->oss.buffer;
+ 		}
+@@ -1407,7 +1407,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha
+ 			}
+ 		} else {
+ 			tmp = snd_pcm_oss_write2(substream,
+-						 (const char __force *)buf,
++						 (const char __force_kernel *)buf,
+ 						 runtime->oss.period_bytes, 0);
+ 			if (tmp <= 0)
+ 				goto err;
+@@ -1433,7 +1433,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
+ 	struct snd_pcm_runtime *runtime = substream->runtime;
+ 	snd_pcm_sframes_t frames, frames1;
+ #ifdef CONFIG_SND_PCM_OSS_PLUGINS
+-	char __user *final_dst = (char __force __user *)buf;
++	char __user *final_dst = (char __force_user *)buf;
+ 	if (runtime->oss.plugin_first) {
+ 		struct snd_pcm_plugin_channel *channels;
+ 		size_t oss_frame_bytes = (runtime->oss.plugin_last->dst_width * runtime->oss.plugin_last->dst_format.channels) / 8;
+@@ -1495,7 +1495,7 @@ static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __use
+ 			xfer += tmp;
+ 			runtime->oss.buffer_used -= tmp;
+ 		} else {
+-			tmp = snd_pcm_oss_read2(substream, (char __force *)buf,
++			tmp = snd_pcm_oss_read2(substream, (char __force_kernel *)buf,
+ 						runtime->oss.period_bytes, 0);
+ 			if (tmp <= 0)
+ 				goto err;
+@@ -1663,7 +1663,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file)
+ 								   size1);
+ 					size1 /= runtime->channels; /* frames */
+ 					fs = snd_enter_user();
+-					snd_pcm_lib_write(substream, (void __force __user *)runtime->oss.buffer, size1);
++					snd_pcm_lib_write(substream, (void __force_user *)runtime->oss.buffer, size1);
+ 					snd_leave_user(fs);
+ 				}
+ 			} else if (runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) {
+diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
+index c4ac3c1..5266261 100644
+--- a/sound/core/pcm_compat.c
++++ b/sound/core/pcm_compat.c
+@@ -31,7 +31,7 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
+ 	int err;
+ 
+ 	fs = snd_enter_user();
+-	err = snd_pcm_delay(substream, &delay);
++	err = snd_pcm_delay(substream, (snd_pcm_sframes_t __force_user *)&delay);
+ 	snd_leave_user(fs);
+ 	if (err < 0)
+ 		return err;
+diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
+index ee24057..3114985 100644
+--- a/sound/core/pcm_native.c
++++ b/sound/core/pcm_native.c
+@@ -2813,11 +2813,11 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
+ 	switch (substream->stream) {
+ 	case SNDRV_PCM_STREAM_PLAYBACK:
+ 		result = snd_pcm_playback_ioctl1(NULL, substream, cmd,
+-						 (void __user *)arg);
++						 (void __force_user *)arg);
+ 		break;
+ 	case SNDRV_PCM_STREAM_CAPTURE:
+ 		result = snd_pcm_capture_ioctl1(NULL, substream, cmd,
+-						(void __user *)arg);
++						(void __force_user *)arg);
+ 		break;
+ 	default:
+ 		result = -EINVAL;
+diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c
+index 8d4d5e8..fdd0826 100644
+--- a/sound/core/seq/oss/seq_oss.c
++++ b/sound/core/seq/oss/seq_oss.c
+@@ -75,8 +75,8 @@ static int __init alsa_seq_oss_init(void)
+ {
+ 	int rc;
+ 	static struct snd_seq_dev_ops ops = {
+-		snd_seq_oss_synth_register,
+-		snd_seq_oss_synth_unregister,
++		.init_device = snd_seq_oss_synth_register,
++		.free_device = snd_seq_oss_synth_unregister,
+ 	};
+ 
+ 	snd_seq_autoload_lock();
+diff --git a/sound/core/seq/seq_device.c b/sound/core/seq/seq_device.c
+index 040c60e..989a19a 100644
+--- a/sound/core/seq/seq_device.c
++++ b/sound/core/seq/seq_device.c
+@@ -64,7 +64,7 @@ struct ops_list {
+ 	int argsize;		/* argument size */
+ 
+ 	/* operators */
+-	struct snd_seq_dev_ops ops;
++	struct snd_seq_dev_ops *ops;
+ 
+ 	/* registered devices */
+ 	struct list_head dev_list;	/* list of devices */
+@@ -333,7 +333,7 @@ int snd_seq_device_register_driver(char *id, struct snd_seq_dev_ops *entry,
+ 
+ 	mutex_lock(&ops->reg_mutex);
+ 	/* copy driver operators */
+-	ops->ops = *entry;
++	ops->ops = entry;
+ 	ops->driver |= DRIVER_LOADED;
+ 	ops->argsize = argsize;
+ 
+@@ -463,7 +463,7 @@ static int init_device(struct snd_seq_device *dev, struct ops_list *ops)
+ 			   dev->name, ops->id, ops->argsize, dev->argsize);
+ 		return -EINVAL;
+ 	}
+-	if (ops->ops.init_device(dev) >= 0) {
++	if (ops->ops->init_device(dev) >= 0) {
+ 		dev->status = SNDRV_SEQ_DEVICE_REGISTERED;
+ 		ops->num_init_devices++;
+ 	} else {
+@@ -490,7 +490,7 @@ static int free_device(struct snd_seq_device *dev, struct ops_list *ops)
+ 			   dev->name, ops->id, ops->argsize, dev->argsize);
+ 		return -EINVAL;
+ 	}
+-	if ((result = ops->ops.free_device(dev)) >= 0 || result == -ENXIO) {
++	if ((result = ops->ops->free_device(dev)) >= 0 || result == -ENXIO) {
+ 		dev->status = SNDRV_SEQ_DEVICE_FREE;
+ 		dev->driver_data = NULL;
+ 		ops->num_init_devices--;
+diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
+index 64069db..3c6d392 100644
+--- a/sound/core/seq/seq_midi.c
++++ b/sound/core/seq/seq_midi.c
+@@ -462,8 +462,8 @@ snd_seq_midisynth_unregister_port(struct snd_seq_device *dev)
+ static int __init alsa_seq_midi_init(void)
+ {
+ 	static struct snd_seq_dev_ops ops = {
+-		snd_seq_midisynth_register_port,
+-		snd_seq_midisynth_unregister_port,
++		.init_device = snd_seq_midisynth_register_port,
++		.free_device = snd_seq_midisynth_unregister_port,
+ 	};
+ 	memset(&synths, 0, sizeof(synths));
+ 	snd_seq_autoload_lock();
+diff --git a/sound/core/sound.c b/sound/core/sound.c
+index 437c25e..cd040ab 100644
+--- a/sound/core/sound.c
++++ b/sound/core/sound.c
+@@ -86,7 +86,7 @@ static void snd_request_other(int minor)
+ 	case SNDRV_MINOR_TIMER:		str = "snd-timer";	break;
+ 	default:			return;
+ 	}
+-	request_module(str);
++	request_module("%s", str);
+ }
+ 
+ #endif	/* modular kernel */
+diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c
+index 4e0dd22..7a1f32c 100644
+--- a/sound/drivers/mts64.c
++++ b/sound/drivers/mts64.c
+@@ -29,6 +29,7 @@
+ #include <sound/initval.h>
+ #include <sound/rawmidi.h>
+ #include <sound/control.h>
++#include <asm/local.h>
+ 
+ #define CARD_NAME "Miditerminal 4140"
+ #define DRIVER_NAME "MTS64"
+@@ -67,7 +68,7 @@ struct mts64 {
+ 	struct pardevice *pardev;
+ 	int pardev_claimed;
+ 
+-	int open_count;
++	local_t open_count;
+ 	int current_midi_output_port;
+ 	int current_midi_input_port;
+ 	u8 mode[MTS64_NUM_INPUT_PORTS];
+@@ -697,7 +698,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
+ {
+ 	struct mts64 *mts = substream->rmidi->private_data;
+ 
+-	if (mts->open_count == 0) {
++	if (local_read(&mts->open_count) == 0) {
+ 		/* We don't need a spinlock here, because this is just called 
+ 		   if the device has not been opened before. 
+ 		   So there aren't any IRQs from the device */
+@@ -705,7 +706,7 @@ static int snd_mts64_rawmidi_open(struct snd_rawmidi_substream *substream)
+ 
+ 		msleep(50);
+ 	}
+-	++(mts->open_count);
++	local_inc(&mts->open_count);
+ 
+ 	return 0;
+ }
+@@ -715,8 +716,7 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
+ 	struct mts64 *mts = substream->rmidi->private_data;
+ 	unsigned long flags;
+ 
+-	--(mts->open_count);
+-	if (mts->open_count == 0) {
++	if (local_dec_return(&mts->open_count) == 0) {
+ 		/* We need the spinlock_irqsave here because we can still
+ 		   have IRQs at this point */
+ 		spin_lock_irqsave(&mts->lock, flags);
+@@ -725,8 +725,8 @@ static int snd_mts64_rawmidi_close(struct snd_rawmidi_substream *substream)
+ 
+ 		msleep(500);
+ 
+-	} else if (mts->open_count < 0)
+-		mts->open_count = 0;
++	} else if (local_read(&mts->open_count) < 0)
++		local_set(&mts->open_count, 0);
+ 
+ 	return 0;
+ }
+diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c
+index 6839953..7a0f4b9 100644
+--- a/sound/drivers/opl3/opl3_seq.c
++++ b/sound/drivers/opl3/opl3_seq.c
+@@ -281,8 +281,8 @@ static int __init alsa_opl3_seq_init(void)
+ {
+ 	static struct snd_seq_dev_ops ops =
+ 	{
+-		snd_opl3_seq_new_device,
+-		snd_opl3_seq_delete_device
++		.init_device = snd_opl3_seq_new_device,
++		.free_device = snd_opl3_seq_delete_device
+ 	};
+ 
+ 	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops,
+diff --git a/sound/drivers/opl4/opl4_lib.c b/sound/drivers/opl4/opl4_lib.c
+index b953fb4..1999c01 100644
+--- a/sound/drivers/opl4/opl4_lib.c
++++ b/sound/drivers/opl4/opl4_lib.c
+@@ -29,7 +29,7 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
+ MODULE_DESCRIPTION("OPL4 driver");
+ MODULE_LICENSE("GPL");
+ 
+-static void inline snd_opl4_wait(struct snd_opl4 *opl4)
++static inline void snd_opl4_wait(struct snd_opl4 *opl4)
+ {
+ 	int timeout = 10;
+ 	while ((inb(opl4->fm_port) & OPL4_STATUS_BUSY) && --timeout > 0)
+diff --git a/sound/drivers/opl4/opl4_seq.c b/sound/drivers/opl4/opl4_seq.c
+index 9919769..d7de36c 100644
+--- a/sound/drivers/opl4/opl4_seq.c
++++ b/sound/drivers/opl4/opl4_seq.c
+@@ -198,8 +198,8 @@ static int snd_opl4_seq_delete_device(struct snd_seq_device *dev)
+ static int __init alsa_opl4_synth_init(void)
+ {
+ 	static struct snd_seq_dev_ops ops = {
+-		snd_opl4_seq_new_device,
+-		snd_opl4_seq_delete_device
++		.init_device = snd_opl4_seq_new_device,
++		.free_device = snd_opl4_seq_delete_device
+ 	};
+ 
+ 	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL4, &ops,
+diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
+index 991018d..8984740 100644
+--- a/sound/drivers/portman2x4.c
++++ b/sound/drivers/portman2x4.c
+@@ -48,6 +48,7 @@
+ #include <sound/initval.h>
+ #include <sound/rawmidi.h>
+ #include <sound/control.h>
++#include <asm/local.h>
+ 
+ #define CARD_NAME "Portman 2x4"
+ #define DRIVER_NAME "portman"
+@@ -85,7 +86,7 @@ struct portman {
+ 	struct pardevice *pardev;
+ 	int pardev_claimed;
+ 
+-	int open_count;
++	local_t open_count;
+ 	int mode[PORTMAN_NUM_INPUT_PORTS];
+ 	struct snd_rawmidi_substream *midi_input[PORTMAN_NUM_INPUT_PORTS];
+ };
+diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
+index 9048777..2d8b1fc 100644
+--- a/sound/firewire/amdtp.c
++++ b/sound/firewire/amdtp.c
+@@ -488,7 +488,7 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
+ 		ptr = s->pcm_buffer_pointer + data_blocks;
+ 		if (ptr >= pcm->runtime->buffer_size)
+ 			ptr -= pcm->runtime->buffer_size;
+-		ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
++		ACCESS_ONCE_RW(s->pcm_buffer_pointer) = ptr;
+ 
+ 		s->pcm_period_pointer += data_blocks;
+ 		if (s->pcm_period_pointer >= pcm->runtime->period_size) {
+@@ -655,7 +655,7 @@ EXPORT_SYMBOL(amdtp_out_stream_pcm_pointer);
+  */
+ void amdtp_out_stream_update(struct amdtp_out_stream *s)
+ {
+-	ACCESS_ONCE(s->source_node_id_field) =
++	ACCESS_ONCE_RW(s->source_node_id_field) =
+ 		(fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;
+ }
+ EXPORT_SYMBOL(amdtp_out_stream_update);
+diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
+index 2746ecd..c35dedd 100644
+--- a/sound/firewire/amdtp.h
++++ b/sound/firewire/amdtp.h
+@@ -135,7 +135,7 @@ static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
+ static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
+ 						struct snd_pcm_substream *pcm)
+ {
+-	ACCESS_ONCE(s->pcm) = pcm;
++	ACCESS_ONCE_RW(s->pcm) = pcm;
+ }
+ 
+ static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
+diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
+index fd42e6b..c041971 100644
+--- a/sound/firewire/isight.c
++++ b/sound/firewire/isight.c
+@@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count)
+ 	ptr += count;
+ 	if (ptr >= runtime->buffer_size)
+ 		ptr -= runtime->buffer_size;
+-	ACCESS_ONCE(isight->buffer_pointer) = ptr;
++	ACCESS_ONCE_RW(isight->buffer_pointer) = ptr;
+ 
+ 	isight->period_counter += count;
+ 	if (isight->period_counter >= runtime->period_size) {
+@@ -299,7 +299,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
+ 	if (err < 0)
+ 		return err;
+ 
+-	ACCESS_ONCE(isight->pcm_active) = true;
++	ACCESS_ONCE_RW(isight->pcm_active) = true;
+ 
+ 	return 0;
+ }
+@@ -337,7 +337,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
+ {
+ 	struct isight *isight = substream->private_data;
+ 
+-	ACCESS_ONCE(isight->pcm_active) = false;
++	ACCESS_ONCE_RW(isight->pcm_active) = false;
+ 
+ 	mutex_lock(&isight->mutex);
+ 	isight_stop_streaming(isight);
+@@ -430,10 +430,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd)
+ 
+ 	switch (cmd) {
+ 	case SNDRV_PCM_TRIGGER_START:
+-		ACCESS_ONCE(isight->pcm_running) = true;
++		ACCESS_ONCE_RW(isight->pcm_running) = true;
+ 		break;
+ 	case SNDRV_PCM_TRIGGER_STOP:
+-		ACCESS_ONCE(isight->pcm_running) = false;
++		ACCESS_ONCE_RW(isight->pcm_running) = false;
+ 		break;
+ 	default:
+ 		return -EINVAL;
+diff --git a/sound/firewire/scs1x.c b/sound/firewire/scs1x.c
+index 858023c..83b3d3c 100644
+--- a/sound/firewire/scs1x.c
++++ b/sound/firewire/scs1x.c
+@@ -74,7 +74,7 @@ static void scs_output_trigger(struct snd_rawmidi_substream *stream, int up)
+ {
+ 	struct scs *scs = stream->rmidi->private_data;
+ 
+-	ACCESS_ONCE(scs->output) = up ? stream : NULL;
++	ACCESS_ONCE_RW(scs->output) = up ? stream : NULL;
+ 	if (up) {
+ 		scs->output_idle = false;
+ 		tasklet_schedule(&scs->tasklet);
+@@ -257,7 +257,7 @@ static void scs_input_trigger(struct snd_rawmidi_substream *stream, int up)
+ {
+ 	struct scs *scs = stream->rmidi->private_data;
+ 
+-	ACCESS_ONCE(scs->input) = up ? stream : NULL;
++	ACCESS_ONCE_RW(scs->input) = up ? stream : NULL;
+ }
+ 
+ static void scs_input_escaped_byte(struct snd_rawmidi_substream *stream,
+@@ -473,8 +473,8 @@ static void scs_remove(struct fw_unit *unit)
+ 
+ 	snd_card_disconnect(scs->card);
+ 
+-	ACCESS_ONCE(scs->output) = NULL;
+-	ACCESS_ONCE(scs->input) = NULL;
++	ACCESS_ONCE_RW(scs->output) = NULL;
++	ACCESS_ONCE_RW(scs->input) = NULL;
+ 
+ 	wait_event(scs->idle_wait, scs->output_idle);
+ 
+diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
+index 4e3fcfb..ab45a9d 100644
+--- a/sound/isa/sb/emu8000_synth.c
++++ b/sound/isa/sb/emu8000_synth.c
+@@ -120,8 +120,8 @@ static int __init alsa_emu8000_init(void)
+ {
+ 	
+ 	static struct snd_seq_dev_ops ops = {
+-		snd_emu8000_new_device,
+-		snd_emu8000_delete_device,
++		.init_device = snd_emu8000_new_device,
++		.free_device = snd_emu8000_delete_device,
+ 	};
+ 	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU8000, &ops,
+ 					      sizeof(struct snd_emu8000*));
+diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c
+index 048439a..3be9f6f 100644
+--- a/sound/oss/sb_audio.c
++++ b/sound/oss/sb_audio.c
+@@ -904,7 +904,7 @@ sb16_copy_from_user(int dev,
+ 		buf16 = (signed short *)(localbuf + localoffs);
+ 		while (c)
+ 		{
+-			locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
++			locallen = ((unsigned)c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c);
+ 			if (copy_from_user(lbuf8,
+ 					   userbuf+useroffs + p,
+ 					   locallen))
+diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
+index f851fd0..92576fb 100644
+--- a/sound/oss/swarm_cs4297a.c
++++ b/sound/oss/swarm_cs4297a.c
+@@ -2623,7 +2623,6 @@ static int __init cs4297a_init(void)
+ {
+ 	struct cs4297a_state *s;
+ 	u32 pwr, id;
+-	mm_segment_t fs;
+ 	int rval;
+ #ifndef CONFIG_BCM_CS4297A_CSWARM
+ 	u64 cfg;
+@@ -2713,22 +2712,23 @@ static int __init cs4297a_init(void)
+         if (!rval) {
+ 		char *sb1250_duart_present;
+ 
++#if 0
++                mm_segment_t fs;
+                 fs = get_fs();
+                 set_fs(KERNEL_DS);
+-#if 0
+                 val = SOUND_MASK_LINE;
+                 mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val);
+                 for (i = 0; i < ARRAY_SIZE(initvol); i++) {
+                         val = initvol[i].vol;
+                         mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val);
+                 }
++                set_fs(fs);
+ //                cs4297a_write_ac97(s, 0x18, 0x0808);
+ #else
+                 //                cs4297a_write_ac97(s, 0x5e, 0x180);
+                 cs4297a_write_ac97(s, 0x02, 0x0808);
+                 cs4297a_write_ac97(s, 0x18, 0x0808);
+ #endif
+-                set_fs(fs);
+ 
+                 list_add(&s->list, &cs4297a_devs);
+ 
+diff --git a/sound/pci/emu10k1/emu10k1_synth.c b/sound/pci/emu10k1/emu10k1_synth.c
+index 4c41c90..37f3631 100644
+--- a/sound/pci/emu10k1/emu10k1_synth.c
++++ b/sound/pci/emu10k1/emu10k1_synth.c
+@@ -108,8 +108,8 @@ static int __init alsa_emu10k1_synth_init(void)
+ {
+ 	
+ 	static struct snd_seq_dev_ops ops = {
+-		snd_emu10k1_synth_new_device,
+-		snd_emu10k1_synth_delete_device,
++		.init_device = snd_emu10k1_synth_new_device,
++		.free_device = snd_emu10k1_synth_delete_device,
+ 	};
+ 	return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH, &ops,
+ 					      sizeof(struct snd_emu10k1_synth_arg));
+diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
+index 97ebc10..ed8a324 100644
+--- a/sound/pci/hda/hda_codec.c
++++ b/sound/pci/hda/hda_codec.c
+@@ -985,14 +985,10 @@ find_codec_preset(struct hda_codec *codec)
+ 	mutex_unlock(&preset_mutex);
+ 
+ 	if (mod_requested < HDA_MODREQ_MAX_COUNT) {
+-		char name[32];
+ 		if (!mod_requested)
+-			snprintf(name, sizeof(name), "snd-hda-codec-id:%08x",
+-				 codec->vendor_id);
++			request_module("snd-hda-codec-id:%08x", codec->vendor_id);
+ 		else
+-			snprintf(name, sizeof(name), "snd-hda-codec-id:%04x*",
+-				 (codec->vendor_id >> 16) & 0xffff);
+-		request_module(name);
++			request_module("snd-hda-codec-id:%04x*", (codec->vendor_id >> 16) & 0xffff);
+ 		mod_requested++;
+ 		goto again;
+ 	}
+@@ -2751,7 +2747,7 @@ static int get_kctl_0dB_offset(struct snd_kcontrol *kctl, int *step_to_check)
+ 		/* FIXME: set_fs() hack for obtaining user-space TLV data */
+ 		mm_segment_t fs = get_fs();
+ 		set_fs(get_ds());
+-		if (!kctl->tlv.c(kctl, 0, sizeof(_tlv), _tlv))
++		if (!kctl->tlv.c(kctl, 0, sizeof(_tlv), (unsigned int __force_user *)_tlv))
+ 			tlv = _tlv;
+ 		set_fs(fs);
+ 	} else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
+diff --git a/sound/pci/ymfpci/ymfpci.h b/sound/pci/ymfpci/ymfpci.h
+index 4631a23..001ae57 100644
+--- a/sound/pci/ymfpci/ymfpci.h
++++ b/sound/pci/ymfpci/ymfpci.h
+@@ -358,7 +358,7 @@ struct snd_ymfpci {
+ 	spinlock_t reg_lock;
+ 	spinlock_t voice_lock;
+ 	wait_queue_head_t interrupt_sleep;
+-	atomic_t interrupt_sleep_count;
++	atomic_unchecked_t interrupt_sleep_count;
+ 	struct snd_info_entry *proc_entry;
+ 	const struct firmware *dsp_microcode;
+ 	const struct firmware *controller_microcode;
+diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
+index d591c15..8cb8f94 100644
+--- a/sound/pci/ymfpci/ymfpci_main.c
++++ b/sound/pci/ymfpci/ymfpci_main.c
+@@ -202,8 +202,8 @@ static void snd_ymfpci_hw_stop(struct snd_ymfpci *chip)
+ 		if ((snd_ymfpci_readl(chip, YDSXGR_STATUS) & 2) == 0)
+ 			break;
+ 	}
+-	if (atomic_read(&chip->interrupt_sleep_count)) {
+-		atomic_set(&chip->interrupt_sleep_count, 0);
++	if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
++		atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
+ 		wake_up(&chip->interrupt_sleep);
+ 	}
+       __end:
+@@ -787,7 +787,7 @@ static void snd_ymfpci_irq_wait(struct snd_ymfpci *chip)
+ 		 	continue;
+ 		init_waitqueue_entry(&wait, current);
+ 		add_wait_queue(&chip->interrupt_sleep, &wait);
+-		atomic_inc(&chip->interrupt_sleep_count);
++		atomic_inc_unchecked(&chip->interrupt_sleep_count);
+ 		schedule_timeout_uninterruptible(msecs_to_jiffies(50));
+ 		remove_wait_queue(&chip->interrupt_sleep, &wait);
+ 	}
+@@ -825,8 +825,8 @@ static irqreturn_t snd_ymfpci_interrupt(int irq, void *dev_id)
+ 		snd_ymfpci_writel(chip, YDSXGR_MODE, mode);
+ 		spin_unlock(&chip->reg_lock);
+ 
+-		if (atomic_read(&chip->interrupt_sleep_count)) {
+-			atomic_set(&chip->interrupt_sleep_count, 0);
++		if (atomic_read_unchecked(&chip->interrupt_sleep_count)) {
++			atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
+ 			wake_up(&chip->interrupt_sleep);
+ 		}
+ 	}
+@@ -2421,7 +2421,7 @@ int snd_ymfpci_create(struct snd_card *card,
+ 	spin_lock_init(&chip->reg_lock);
+ 	spin_lock_init(&chip->voice_lock);
+ 	init_waitqueue_head(&chip->interrupt_sleep);
+-	atomic_set(&chip->interrupt_sleep_count, 0);
++	atomic_set_unchecked(&chip->interrupt_sleep_count, 0);
+ 	chip->card = card;
+ 	chip->pci = pci;
+ 	chip->irq = -1;
+diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
+index 5428a1f..474f651 100644
+--- a/sound/soc/fsl/fsl_ssi.c
++++ b/sound/soc/fsl/fsl_ssi.c
+@@ -1255,7 +1255,6 @@ static int fsl_ssi_probe(struct platform_device *pdev)
+ {
+ 	struct fsl_ssi_private *ssi_private;
+ 	int ret = 0;
+-	struct device_attribute *dev_attr = NULL;
+ 	struct device_node *np = pdev->dev.of_node;
+ 	const struct of_device_id *of_id;
+ 	enum fsl_ssi_type hw_type;
+@@ -1481,7 +1480,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
+ 					 &ssi_private->cpu_dai_drv, 1);
+ 	if (ret) {
+ 		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
+-		goto error_dev;
++		goto error_clk;
+ 	}
+ 
+ 	ret = fsl_ssi_debugfs_create(ssi_private, &pdev->dev);
+@@ -1562,9 +1561,6 @@ error_pcm:
+ error_dbgfs:
+ 	snd_soc_unregister_component(&pdev->dev);
+ 
+-error_dev:
+-	device_remove_file(&pdev->dev, dev_attr);
+-
+ error_clk:
+ 	if (ssi_private->ssi_on_imx) {
+ 		if (!IS_ERR(ssi_private->baudclk))
+diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
+index fe1df50..09d3be6 100644
+--- a/sound/soc/soc-core.c
++++ b/sound/soc/soc-core.c
+@@ -2254,8 +2254,10 @@ int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
+ 	if (ret)
+ 		return ret;
+ 
+-	ops->warm_reset = snd_soc_ac97_warm_reset;
+-	ops->reset = snd_soc_ac97_reset;
++	pax_open_kernel();
++	*(void **)&ops->warm_reset = snd_soc_ac97_warm_reset;
++	*(void **)&ops->reset = snd_soc_ac97_reset;
++	pax_close_kernel();
+ 
+ 	snd_ac97_rst_cfg = cfg;
+ 	return 0;
+diff --git a/sound/synth/emux/emux_seq.c b/sound/synth/emux/emux_seq.c
+index a020920..55579f6 100644
+--- a/sound/synth/emux/emux_seq.c
++++ b/sound/synth/emux/emux_seq.c
+@@ -33,13 +33,13 @@ static int snd_emux_unuse(void *private_data, struct snd_seq_port_subscribe *inf
+  * MIDI emulation operators
+  */
+ static struct snd_midi_op emux_ops = {
+-	snd_emux_note_on,
+-	snd_emux_note_off,
+-	snd_emux_key_press,
+-	snd_emux_terminate_note,
+-	snd_emux_control,
+-	snd_emux_nrpn,
+-	snd_emux_sysex,
++	.note_on = snd_emux_note_on,
++	.note_off = snd_emux_note_off,
++	.key_press = snd_emux_key_press,
++	.note_terminate = snd_emux_terminate_note,
++	.control = snd_emux_control,
++	.nrpn = snd_emux_nrpn,
++	.sysex = snd_emux_sysex,
+ };
+ 
+ 
+diff --git a/tools/gcc/.gitignore b/tools/gcc/.gitignore
+new file mode 100644
+index 0000000..60e7af2
+--- /dev/null
++++ b/tools/gcc/.gitignore
+@@ -0,0 +1,2 @@
++randomize_layout_seed.h
++randomize_layout_hash.h
+diff --git a/tools/gcc/Makefile b/tools/gcc/Makefile
+new file mode 100644
+index 0000000..a51677e
+--- /dev/null
++++ b/tools/gcc/Makefile
+@@ -0,0 +1,52 @@
++#CC := gcc
++#PLUGIN_SOURCE_FILES := pax_plugin.c
++#PLUGIN_OBJECT_FILES := $(patsubst %.c,%.o,$(PLUGIN_SOURCE_FILES))
++GCCPLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
++#CFLAGS += -I$(GCCPLUGINS_DIR)/include -fPIC -O2 -Wall -W -std=gnu99
++
++ifeq ($(PLUGINCC),$(HOSTCC))
++HOSTLIBS := hostlibs
++HOST_EXTRACFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(src) -std=gnu99 -ggdb
++export HOST_EXTRACFLAGS
++else
++HOSTLIBS := hostcxxlibs
++HOST_EXTRACXXFLAGS += -I$(GCCPLUGINS_DIR)/include -I$(src) -std=gnu++98 -fno-rtti -fno-exceptions -fasynchronous-unwind-tables -ggdb -Wno-unused-parameter -Wno-narrowing -Wno-unused-variable
++export HOST_EXTRACXXFLAGS
++endif
++
++export GCCPLUGINS_DIR HOSTLIBS
++
++$(HOSTLIBS)-$(CONFIG_PAX_CONSTIFY_PLUGIN) := constify_plugin.so
++$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STACKLEAK) += stackleak_plugin.so
++$(HOSTLIBS)-$(CONFIG_KALLOCSTAT_PLUGIN) += kallocstat_plugin.so
++$(HOSTLIBS)-$(CONFIG_PAX_KERNEXEC_PLUGIN) += kernexec_plugin.so
++$(HOSTLIBS)-$(CONFIG_CHECKER_PLUGIN) += checker_plugin.so
++$(HOSTLIBS)-y += colorize_plugin.so
++$(HOSTLIBS)-$(CONFIG_PAX_LATENT_ENTROPY) += latent_entropy_plugin.so
++$(HOSTLIBS)-$(CONFIG_PAX_MEMORY_STRUCTLEAK) += structleak_plugin.so
++$(HOSTLIBS)-$(CONFIG_GRKERNSEC_RANDSTRUCT) += randomize_layout_plugin.so
++
++subdir-$(CONFIG_PAX_SIZE_OVERFLOW) := size_overflow_plugin
++subdir- += size_overflow_plugin
++
++always := $($(HOSTLIBS)-y)
++
++constify_plugin-objs := constify_plugin.o
++stackleak_plugin-objs := stackleak_plugin.o
++kallocstat_plugin-objs := kallocstat_plugin.o
++kernexec_plugin-objs := kernexec_plugin.o
++checker_plugin-objs := checker_plugin.o
++colorize_plugin-objs := colorize_plugin.o
++latent_entropy_plugin-objs := latent_entropy_plugin.o
++structleak_plugin-objs := structleak_plugin.o
++randomize_layout_plugin-objs := randomize_layout_plugin.o
++
++$(obj)/randomize_layout_plugin.o: $(objtree)/$(obj)/randomize_layout_seed.h
++
++quiet_cmd_create_randomize_layout_seed = GENSEED  $@
++      cmd_create_randomize_layout_seed = \
++	$(CONFIG_SHELL) $(srctree)/$(src)/gen-random-seed.sh $@ $(objtree)/include/generated/randomize_layout_hash.h
++$(objtree)/$(obj)/randomize_layout_seed.h: FORCE
++	$(call if_changed,create_randomize_layout_seed)
++
++targets += randomize_layout_seed.h randomize_layout_hash.h
+diff --git a/tools/gcc/checker_plugin.c b/tools/gcc/checker_plugin.c
+new file mode 100644
+index 0000000..5452feea
+--- /dev/null
++++ b/tools/gcc/checker_plugin.c
+@@ -0,0 +1,150 @@
++/*
++ * Copyright 2011-2014 by the PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to implement various sparse (source code checker) features
++ *
++ * TODO:
++ * - define separate __iomem, __percpu and __rcu address spaces (lots of code to patch)
++ *
++ * BUGS:
++ * - none known
++ */
++
++#include "gcc-common.h"
++
++extern void c_register_addr_space (const char *str, addr_space_t as);
++extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
++extern enum machine_mode default_addr_space_address_mode (addr_space_t);
++extern bool default_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as);
++extern bool default_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as);
++extern rtx default_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as);
++
++int plugin_is_GPL_compatible;
++
++static struct plugin_info checker_plugin_info = {
++	.version	= "201304082245",
++	.help		= NULL,
++};
++
++#define ADDR_SPACE_KERNEL		0
++#define ADDR_SPACE_FORCE_KERNEL		1
++#define ADDR_SPACE_USER			2
++#define ADDR_SPACE_FORCE_USER		3
++#define ADDR_SPACE_IOMEM		0
++#define ADDR_SPACE_FORCE_IOMEM		0
++#define ADDR_SPACE_PERCPU		0
++#define ADDR_SPACE_FORCE_PERCPU		0
++#define ADDR_SPACE_RCU			0
++#define ADDR_SPACE_FORCE_RCU		0
++
++static enum machine_mode checker_addr_space_pointer_mode(addr_space_t addrspace)
++{
++	return default_addr_space_pointer_mode(ADDR_SPACE_GENERIC);
++}
++
++static enum machine_mode checker_addr_space_address_mode(addr_space_t addrspace)
++{
++	return default_addr_space_address_mode(ADDR_SPACE_GENERIC);
++}
++
++static bool checker_addr_space_valid_pointer_mode(enum machine_mode mode, addr_space_t as)
++{
++	return default_addr_space_valid_pointer_mode(mode, as);
++}
++
++static bool checker_addr_space_legitimate_address_p(enum machine_mode mode, rtx mem, bool strict, addr_space_t as)
++{
++	return default_addr_space_legitimate_address_p(mode, mem, strict, ADDR_SPACE_GENERIC);
++}
++
++static rtx checker_addr_space_legitimize_address(rtx x, rtx oldx, enum machine_mode mode, addr_space_t as)
++{
++	return default_addr_space_legitimize_address(x, oldx, mode, as);
++}
++
++static bool checker_addr_space_subset_p(addr_space_t subset, addr_space_t superset)
++{
++	if (subset == ADDR_SPACE_FORCE_KERNEL && superset == ADDR_SPACE_KERNEL)
++		return true;
++
++	if (subset == ADDR_SPACE_FORCE_USER && superset == ADDR_SPACE_USER)
++		return true;
++
++	if (subset == ADDR_SPACE_FORCE_IOMEM && superset == ADDR_SPACE_IOMEM)
++		return true;
++
++	if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_USER)
++		return true;
++
++	if (subset == ADDR_SPACE_KERNEL && superset == ADDR_SPACE_FORCE_IOMEM)
++		return true;
++
++	if (subset == ADDR_SPACE_USER && superset == ADDR_SPACE_FORCE_KERNEL)
++		return true;
++
++	if (subset == ADDR_SPACE_IOMEM && superset == ADDR_SPACE_FORCE_KERNEL)
++		return true;
++
++	return subset == superset;
++}
++
++static rtx checker_addr_space_convert(rtx op, tree from_type, tree to_type)
++{
++//	addr_space_t from_as = TYPE_ADDR_SPACE(TREE_TYPE(from_type));
++//	addr_space_t to_as = TYPE_ADDR_SPACE(TREE_TYPE(to_type));
++
++	return op;
++}
++
++static void register_checker_address_spaces(void *event_data, void *data)
++{
++	c_register_addr_space("__kernel", ADDR_SPACE_KERNEL);
++	c_register_addr_space("__force_kernel", ADDR_SPACE_FORCE_KERNEL);
++	c_register_addr_space("__user", ADDR_SPACE_USER);
++	c_register_addr_space("__force_user", ADDR_SPACE_FORCE_USER);
++//	c_register_addr_space("__iomem", ADDR_SPACE_IOMEM);
++//	c_register_addr_space("__force_iomem", ADDR_SPACE_FORCE_IOMEM);
++//	c_register_addr_space("__percpu", ADDR_SPACE_PERCPU);
++//	c_register_addr_space("__force_percpu", ADDR_SPACE_FORCE_PERCPU);
++//	c_register_addr_space("__rcu", ADDR_SPACE_RCU);
++//	c_register_addr_space("__force_rcu", ADDR_SPACE_FORCE_RCU);
++
++	targetm.addr_space.pointer_mode		= checker_addr_space_pointer_mode;
++	targetm.addr_space.address_mode		= checker_addr_space_address_mode;
++	targetm.addr_space.valid_pointer_mode	= checker_addr_space_valid_pointer_mode;
++	targetm.addr_space.legitimate_address_p	= checker_addr_space_legitimate_address_p;
++//	targetm.addr_space.legitimize_address	= checker_addr_space_legitimize_address;
++	targetm.addr_space.subset_p		= checker_addr_space_subset_p;
++	targetm.addr_space.convert		= checker_addr_space_convert;
++}
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	int i;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &checker_plugin_info);
++
++	for (i = 0; i < argc; ++i)
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++
++	if (TARGET_64BIT == 0)
++		return 0;
++
++	register_callback(plugin_name, PLUGIN_PRAGMAS, register_checker_address_spaces, NULL);
++
++	return 0;
++}
+diff --git a/tools/gcc/colorize_plugin.c b/tools/gcc/colorize_plugin.c
+new file mode 100644
+index 0000000..0c96d8a
+--- /dev/null
++++ b/tools/gcc/colorize_plugin.c
+@@ -0,0 +1,215 @@
++/*
++ * Copyright 2012-2015 by PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to colorize diagnostic output
++ *
++ */
++
++#include "gcc-common.h"
++
++int plugin_is_GPL_compatible;
++
++static struct plugin_info colorize_plugin_info = {
++	.version	= "201404202350",
++	.help		= "color=[never|always|auto]\tdetermine when to colorize\n",
++};
++
++#define GREEN		"\033[32m\033[K"
++#define LIGHTGREEN	"\033[1;32m\033[K"
++#define YELLOW		"\033[33m\033[K"
++#define LIGHTYELLOW	"\033[1;33m\033[K"
++#define RED		"\033[31m\033[K"
++#define LIGHTRED	"\033[1;31m\033[K"
++#define BLUE		"\033[34m\033[K"
++#define LIGHTBLUE	"\033[1;34m\033[K"
++#define BRIGHT		"\033[1;m\033[K"
++#define NORMAL		"\033[m\033[K"
++
++static diagnostic_starter_fn old_starter;
++static diagnostic_finalizer_fn old_finalizer;
++
++static void start_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
++{
++	const char *color;
++	char *newprefix;
++
++	switch (diagnostic->kind) {
++	case DK_NOTE:
++		color = LIGHTBLUE;
++		break;
++
++	case DK_PEDWARN:
++	case DK_WARNING:
++		color = LIGHTYELLOW;
++		break;
++
++	case DK_ERROR:
++	case DK_FATAL:
++	case DK_ICE:
++	case DK_PERMERROR:
++	case DK_SORRY:
++		color = LIGHTRED;
++		break;
++
++	default:
++		color = NORMAL;
++	}
++
++	old_starter(context, diagnostic);
++	if (-1 == asprintf(&newprefix, "%s%s" NORMAL, color, context->printer->prefix))
++		return;
++	pp_destroy_prefix(context->printer);
++	pp_set_prefix(context->printer, newprefix);
++}
++
++static void finalize_colorize(diagnostic_context *context, diagnostic_info *diagnostic)
++{
++	old_finalizer(context, diagnostic);
++}
++
++static void colorize_arm(void)
++{
++	old_starter = diagnostic_starter(global_dc);
++	old_finalizer = diagnostic_finalizer(global_dc);
++
++	diagnostic_starter(global_dc) = start_colorize;
++	diagnostic_finalizer(global_dc) = finalize_colorize;
++}
++
++static unsigned int execute_colorize_rearm(void)
++{
++	if (diagnostic_starter(global_dc) == start_colorize)
++		return 0;
++
++	colorize_arm();
++	return 0;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data colorize_rearm_pass_data = {
++#else
++struct simple_ipa_opt_pass colorize_rearm_pass = {
++	.pass = {
++#endif
++		.type			= SIMPLE_IPA_PASS,
++		.name			= "colorize_rearm",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= execute_colorize_rearm,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= 0
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class colorize_rearm_pass : public simple_ipa_opt_pass {
++public:
++	colorize_rearm_pass() : simple_ipa_opt_pass(colorize_rearm_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual unsigned int execute(function *) { return execute_colorize_rearm(); }
++#else
++	unsigned int execute() { return execute_colorize_rearm(); }
++#endif
++};
++}
++
++static opt_pass *make_colorize_rearm_pass(void)
++{
++	return new colorize_rearm_pass();
++}
++#else
++static struct opt_pass *make_colorize_rearm_pass(void)
++{
++	return &colorize_rearm_pass.pass;
++}
++#endif
++
++static void colorize_start_unit(void *gcc_data, void *user_data)
++{
++	colorize_arm();
++}
++
++static bool should_colorize(void)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	return false;
++#else
++	char const *t = getenv("TERM");
++
++	return t && strcmp(t, "dumb") && isatty(STDERR_FILENO);
++#endif
++}
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	int i;
++	struct register_pass_info colorize_rearm_pass_info;
++	bool colorize;
++
++	colorize_rearm_pass_info.pass				= make_colorize_rearm_pass();
++	colorize_rearm_pass_info.reference_pass_name		= "*free_lang_data";
++	colorize_rearm_pass_info.ref_pass_instance_number	= 1;
++	colorize_rearm_pass_info.pos_op 			= PASS_POS_INSERT_AFTER;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &colorize_plugin_info);
++
++	colorize = getenv("GCC_COLORS") ? should_colorize() : false;
++
++	for (i = 0; i < argc; ++i) {
++		if (!strcmp(argv[i].key, "color")) {
++			if (!argv[i].value) {
++				error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++				continue;
++			}
++			if (!strcmp(argv[i].value, "always"))
++				colorize = true;
++			else if (!strcmp(argv[i].value, "never"))
++				colorize = false;
++			else if (!strcmp(argv[i].value, "auto"))
++				colorize = should_colorize();
++			else
++				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++
++	if (colorize) {
++		// TODO: parse GCC_COLORS as used by gcc 4.9+
++		register_callback(plugin_name, PLUGIN_START_UNIT, &colorize_start_unit, NULL);
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &colorize_rearm_pass_info);
++	}
++	return 0;
++}
+diff --git a/tools/gcc/constify_plugin.c b/tools/gcc/constify_plugin.c
+new file mode 100644
+index 0000000..da184c5
+--- /dev/null
++++ b/tools/gcc/constify_plugin.c
+@@ -0,0 +1,564 @@
++/*
++ * Copyright 2011 by Emese Revfy <re.emese@gmail.com>
++ * Copyright 2011-2015 by PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * This gcc plugin constifies all structures which contain only function pointers or are explicitly marked for constification.
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/const_plugin/
++ *
++ * Usage:
++ * $ gcc -I`gcc -print-file-name=plugin`/include -fPIC -shared -O2 -o constify_plugin.so constify_plugin.c
++ * $ gcc -fplugin=constify_plugin.so test.c -O2
++ */
++
++#include "gcc-common.h"
++
++// unused C type flag in all versions 4.5-5.0
++#define TYPE_CONSTIFY_VISITED(TYPE) TYPE_LANG_FLAG_4(TYPE)
++
++int plugin_is_GPL_compatible;
++
++static struct plugin_info const_plugin_info = {
++	.version	= "201401270210",
++	.help		= "no-constify\tturn off constification\n",
++};
++
++typedef struct {
++	bool has_fptr_field;
++	bool has_writable_field;
++	bool has_do_const_field;
++	bool has_no_const_field;
++} constify_info;
++
++static const_tree get_field_type(const_tree field)
++{
++	return strip_array_types(TREE_TYPE(field));
++}
++
++static bool is_fptr(const_tree field)
++{
++	const_tree ptr = get_field_type(field);
++
++	if (TREE_CODE(ptr) != POINTER_TYPE)
++		return false;
++
++	return TREE_CODE(TREE_TYPE(ptr)) == FUNCTION_TYPE;
++}
++
++/*
++ * determine whether the given structure type meets the requirements for automatic constification,
++ * including the constification attributes on nested structure types
++ */
++static void constifiable(const_tree node, constify_info *cinfo)
++{
++	const_tree field;
++
++	gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
++
++	// e.g., pointer to structure fields while still constructing the structure type
++	if (TYPE_FIELDS(node) == NULL_TREE)
++		return;
++
++	for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) {
++		const_tree type = get_field_type(field);
++		enum tree_code code = TREE_CODE(type);
++
++		if (node == type)
++			continue;
++
++		if (is_fptr(field))
++			cinfo->has_fptr_field = true;
++		else if (!TREE_READONLY(field))
++			cinfo->has_writable_field = true;
++
++		if (code == RECORD_TYPE || code == UNION_TYPE) {
++			if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
++				cinfo->has_do_const_field = true;
++			else if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type)))
++				cinfo->has_no_const_field = true;
++			else
++				constifiable(type, cinfo);
++		}
++	}
++}
++
++static bool constified(const_tree node)
++{
++	constify_info cinfo = {
++		.has_fptr_field = false,
++		.has_writable_field = false,
++		.has_do_const_field = false,
++		.has_no_const_field = false
++	};
++
++	gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
++
++	if (lookup_attribute("no_const", TYPE_ATTRIBUTES(node))) {
++//		gcc_assert(!TYPE_READONLY(node));
++		return false;
++	}
++
++	if (lookup_attribute("do_const", TYPE_ATTRIBUTES(node))) {
++		gcc_assert(TYPE_READONLY(node));
++		return true;
++	}
++
++	constifiable(node, &cinfo);
++	if ((!cinfo.has_fptr_field || cinfo.has_writable_field) && !cinfo.has_do_const_field)
++		return false;
++
++	return TYPE_READONLY(node);
++}
++
++static void deconstify_tree(tree node);
++
++static void deconstify_type(tree type)
++{
++	tree field;
++
++	gcc_assert(TREE_CODE(type) == RECORD_TYPE || TREE_CODE(type) == UNION_TYPE);
++
++	for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
++		const_tree fieldtype = get_field_type(field);
++
++		// special case handling of simple ptr-to-same-array-type members
++		if (TREE_CODE(TREE_TYPE(field)) == POINTER_TYPE) {
++			tree ptrtype = TREE_TYPE(TREE_TYPE(field));
++
++			if (TREE_TYPE(TREE_TYPE(field)) == type)
++				continue;
++			if (TREE_CODE(ptrtype) != RECORD_TYPE && TREE_CODE(ptrtype) != UNION_TYPE)
++				continue;
++			if (!constified(ptrtype))
++				continue;
++			if (TYPE_MAIN_VARIANT(ptrtype) == TYPE_MAIN_VARIANT(type)) {
++				TREE_TYPE(field) = copy_node(TREE_TYPE(field));
++				TREE_TYPE(TREE_TYPE(field)) = build_qualified_type(type, TYPE_QUALS(ptrtype) & ~TYPE_QUAL_CONST);
++			}
++			continue;
++		}
++		if (TREE_CODE(fieldtype) != RECORD_TYPE && TREE_CODE(fieldtype) != UNION_TYPE)
++			continue;
++		if (!constified(fieldtype))
++			continue;
++
++		deconstify_tree(field);
++		TREE_READONLY(field) = 0;
++	}
++	TYPE_READONLY(type) = 0;
++	C_TYPE_FIELDS_READONLY(type) = 0;
++	if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
++		TYPE_ATTRIBUTES(type) = copy_list(TYPE_ATTRIBUTES(type));
++		TYPE_ATTRIBUTES(type) = remove_attribute("do_const", TYPE_ATTRIBUTES(type));
++	}
++}
++
++static void deconstify_tree(tree node)
++{
++	tree old_type, new_type, field;
++
++	old_type = TREE_TYPE(node);
++	while (TREE_CODE(old_type) == ARRAY_TYPE && TREE_CODE(TREE_TYPE(old_type)) != ARRAY_TYPE) {
++		node = TREE_TYPE(node) = copy_node(old_type);
++		old_type = TREE_TYPE(old_type);
++	}
++
++	gcc_assert(TREE_CODE(old_type) == RECORD_TYPE || TREE_CODE(old_type) == UNION_TYPE);
++	gcc_assert(TYPE_READONLY(old_type) && (TYPE_QUALS(old_type) & TYPE_QUAL_CONST));
++
++	new_type = build_qualified_type(old_type, TYPE_QUALS(old_type) & ~TYPE_QUAL_CONST);
++	TYPE_FIELDS(new_type) = copy_list(TYPE_FIELDS(new_type));
++	for (field = TYPE_FIELDS(new_type); field; field = TREE_CHAIN(field))
++		DECL_FIELD_CONTEXT(field) = new_type;
++
++	deconstify_type(new_type);
++
++	TREE_TYPE(node) = new_type;
++}
++
++static tree handle_no_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	tree type;
++	constify_info cinfo = {
++		.has_fptr_field = false,
++		.has_writable_field = false,
++		.has_do_const_field = false,
++		.has_no_const_field = false
++	};
++
++	*no_add_attrs = true;
++	if (TREE_CODE(*node) == FUNCTION_DECL) {
++		error("%qE attribute does not apply to functions (%qF)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TREE_CODE(*node) == PARM_DECL) {
++		error("%qE attribute does not apply to function parameters (%qD)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TREE_CODE(*node) == VAR_DECL) {
++		error("%qE attribute does not apply to variables (%qD)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TYPE_P(*node)) {
++		type = *node;
++	} else {
++		gcc_assert(TREE_CODE(*node) == TYPE_DECL);
++		type = TREE_TYPE(*node);
++	}
++
++	if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE) {
++		error("%qE attribute used on %qT applies to struct and union types only", name, type);
++		return NULL_TREE;
++	}
++
++	if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) {
++		error("%qE attribute is already applied to the type %qT", name, type);
++		return NULL_TREE;
++	}
++
++	if (TYPE_P(*node)) {
++		if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type)))
++			error("%qE attribute used on type %qT is incompatible with 'do_const'", name, type);
++		else
++			*no_add_attrs = false;
++		return NULL_TREE;
++	}
++
++	constifiable(type, &cinfo);
++	if ((cinfo.has_fptr_field && !cinfo.has_writable_field) || lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
++		deconstify_tree(*node);
++		TYPE_CONSTIFY_VISITED(TREE_TYPE(*node)) = 1;
++		return NULL_TREE;
++	}
++
++	if (TYPE_FIELDS(type))
++		error("%qE attribute used on type %qT that is not constified", name, type);
++	return NULL_TREE;
++}
++
++static void constify_type(tree type)
++{
++	TYPE_READONLY(type) = 1;
++	C_TYPE_FIELDS_READONLY(type) = 1;
++	TYPE_CONSTIFY_VISITED(type) = 1;
++//	TYPE_ATTRIBUTES(type) = copy_list(TYPE_ATTRIBUTES(type));
++//	TYPE_ATTRIBUTES(type) = tree_cons(get_identifier("do_const"), NULL_TREE, TYPE_ATTRIBUTES(type));
++}
++
++static tree handle_do_const_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	*no_add_attrs = true;
++	if (!TYPE_P(*node)) {
++		error("%qE attribute applies to types only (%qD)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TREE_CODE(*node) != RECORD_TYPE && TREE_CODE(*node) != UNION_TYPE) {
++		error("%qE attribute used on %qT applies to struct and union types only", name, *node);
++		return NULL_TREE;
++	}
++
++	if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(*node))) {
++		error("%qE attribute used on %qT is already applied to the type", name, *node);
++		return NULL_TREE;
++	}
++
++	if (lookup_attribute("no_const", TYPE_ATTRIBUTES(*node))) {
++		error("%qE attribute used on %qT is incompatible with 'no_const'", name, *node);
++		return NULL_TREE;
++	}
++
++	*no_add_attrs = false;
++	return NULL_TREE;
++}
++
++static struct attribute_spec no_const_attr = {
++	.name			= "no_const",
++	.min_length		= 0,
++	.max_length		= 0,
++	.decl_required		= false,
++	.type_required		= false,
++	.function_type_required	= false,
++	.handler		= handle_no_const_attribute,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity	= true
++#endif
++};
++
++static struct attribute_spec do_const_attr = {
++	.name			= "do_const",
++	.min_length		= 0,
++	.max_length		= 0,
++	.decl_required		= false,
++	.type_required		= false,
++	.function_type_required	= false,
++	.handler		= handle_do_const_attribute,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity	= true
++#endif
++};
++
++static void register_attributes(void *event_data, void *data)
++{
++	register_attribute(&no_const_attr);
++	register_attribute(&do_const_attr);
++}
++
++static void finish_type(void *event_data, void *data)
++{
++	tree type = (tree)event_data;
++	constify_info cinfo = {
++		.has_fptr_field = false,
++		.has_writable_field = false,
++		.has_do_const_field = false,
++		.has_no_const_field = false
++	};
++
++	if (type == NULL_TREE || type == error_mark_node)
++		return;
++
++#if BUILDING_GCC_VERSION >= 5000
++	if (TREE_CODE(type) == ENUMERAL_TYPE)
++		return;
++#endif
++
++	if (TYPE_FIELDS(type) == NULL_TREE || TYPE_CONSTIFY_VISITED(type))
++		return;
++
++	constifiable(type, &cinfo);
++
++	if (lookup_attribute("no_const", TYPE_ATTRIBUTES(type))) {
++		if ((cinfo.has_fptr_field && !cinfo.has_writable_field) || cinfo.has_do_const_field) {
++			deconstify_type(type);
++			TYPE_CONSTIFY_VISITED(type) = 1;
++		} else
++			error("'no_const' attribute used on type %qT that is not constified", type);
++		return;
++	}
++
++	if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
++		if (!cinfo.has_writable_field) {
++			error("'do_const' attribute used on type %qT that is%sconstified", type, cinfo.has_fptr_field ? " " : " not ");
++			return;
++		}
++		constify_type(type);
++		return;
++	}
++
++	if (cinfo.has_fptr_field && !cinfo.has_writable_field) {
++		if (lookup_attribute("do_const", TYPE_ATTRIBUTES(type))) {
++			error("'do_const' attribute used on type %qT that is constified", type);
++			return;
++		}
++		constify_type(type);
++		return;
++	}
++
++	deconstify_type(type);
++	TYPE_CONSTIFY_VISITED(type) = 1;
++}
++
++static void check_global_variables(void *event_data, void *data)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	varpool_node *node;
++#else
++	struct varpool_node *node;
++#endif
++
++	FOR_EACH_VARIABLE(node) {
++		tree var = NODE_DECL(node);
++		tree type = TREE_TYPE(var);
++
++		if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
++			continue;
++
++		if (!TYPE_READONLY(type) || !C_TYPE_FIELDS_READONLY(type))
++			continue;
++
++		if (!TYPE_CONSTIFY_VISITED(type))
++			continue;
++
++		if (DECL_EXTERNAL(var))
++			continue;
++
++		if (DECL_INITIAL(var))
++			continue;
++
++		// this works around a gcc bug/feature where uninitialized globals
++		// are moved into the .bss section regardless of any constification
++		DECL_INITIAL(var) = build_constructor(type, NULL);
++//		inform(DECL_SOURCE_LOCATION(var), "constified variable %qE moved into .rodata", var);
++	}
++}
++
++static unsigned int check_local_variables(void)
++{
++	unsigned int ret = 0;
++	tree var;
++
++	unsigned int i;
++
++	FOR_EACH_LOCAL_DECL(cfun, i, var) {
++		tree type = TREE_TYPE(var);
++
++		gcc_assert(DECL_P(var));
++		if (is_global_var(var))
++			continue;
++
++		if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
++			continue;
++
++		if (!TYPE_READONLY(type) || !C_TYPE_FIELDS_READONLY(type))
++			continue;
++
++		if (!TYPE_CONSTIFY_VISITED(type))
++			continue;
++
++		error_at(DECL_SOURCE_LOCATION(var), "constified variable %qE cannot be local", var);
++		ret = 1;
++	}
++	return ret;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data check_local_variables_pass_data = {
++#else
++static struct gimple_opt_pass check_local_variables_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "check_local_variables",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION >= 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= check_local_variables,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= 0
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class check_local_variables_pass : public gimple_opt_pass {
++public:
++	check_local_variables_pass() : gimple_opt_pass(check_local_variables_pass_data, g) {}
++	unsigned int execute() { return check_local_variables(); }
++};
++}
++
++static opt_pass *make_check_local_variables_pass(void)
++{
++	return new check_local_variables_pass();
++}
++#else
++static struct opt_pass *make_check_local_variables_pass(void)
++{
++	return &check_local_variables_pass.pass;
++}
++#endif
++
++static struct {
++	const char *name;
++	const char *asm_op;
++} sections[] = {
++	{".init.rodata",     "\t.section\t.init.rodata,\"a\""},
++	{".ref.rodata",      "\t.section\t.ref.rodata,\"a\""},
++	{".devinit.rodata",  "\t.section\t.devinit.rodata,\"a\""},
++	{".devexit.rodata",  "\t.section\t.devexit.rodata,\"a\""},
++	{".cpuinit.rodata",  "\t.section\t.cpuinit.rodata,\"a\""},
++	{".cpuexit.rodata",  "\t.section\t.cpuexit.rodata,\"a\""},
++	{".meminit.rodata",  "\t.section\t.meminit.rodata,\"a\""},
++	{".memexit.rodata",  "\t.section\t.memexit.rodata,\"a\""},
++	{".data..read_only", "\t.section\t.data..read_only,\"a\""},
++};
++
++static unsigned int (*old_section_type_flags)(tree decl, const char *name, int reloc);
++
++static unsigned int constify_section_type_flags(tree decl, const char *name, int reloc)
++{
++	size_t i;
++
++	for (i = 0; i < ARRAY_SIZE(sections); i++)
++		if (!strcmp(sections[i].name, name))
++			return 0;
++	return old_section_type_flags(decl, name, reloc);
++}
++
++static void constify_start_unit(void *gcc_data, void *user_data)
++{
++//	size_t i;
++
++//	for (i = 0; i < ARRAY_SIZE(sections); i++)
++//		sections[i].section = get_unnamed_section(0, output_section_asm_op, sections[i].asm_op);
++//		sections[i].section = get_section(sections[i].name, 0, NULL);
++
++	old_section_type_flags = targetm.section_type_flags;
++	targetm.section_type_flags = constify_section_type_flags;
++}
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	int i;
++	bool constify = true;
++
++	struct register_pass_info check_local_variables_pass_info;
++
++	check_local_variables_pass_info.pass				= make_check_local_variables_pass();
++	check_local_variables_pass_info.reference_pass_name		= "ssa";
++	check_local_variables_pass_info.ref_pass_instance_number	= 1;
++	check_local_variables_pass_info.pos_op				= PASS_POS_INSERT_BEFORE;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	for (i = 0; i < argc; ++i) {
++		if (!(strcmp(argv[i].key, "no-constify"))) {
++			constify = false;
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++
++	if (strncmp(lang_hooks.name, "GNU C", 5) && !strncmp(lang_hooks.name, "GNU C+", 6)) {
++		inform(UNKNOWN_LOCATION, G_("%s supports C only, not %s"), plugin_name, lang_hooks.name);
++		constify = false;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &const_plugin_info);
++	if (constify) {
++		register_callback(plugin_name, PLUGIN_ALL_IPA_PASSES_START, check_global_variables, NULL);
++		register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &check_local_variables_pass_info);
++		register_callback(plugin_name, PLUGIN_START_UNIT, constify_start_unit, NULL);
++	}
++	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
++
++	return 0;
++}
+diff --git a/tools/gcc/gcc-common.h b/tools/gcc/gcc-common.h
+new file mode 100644
+index 0000000..77f8462
+--- /dev/null
++++ b/tools/gcc/gcc-common.h
+@@ -0,0 +1,689 @@
++#ifndef GCC_COMMON_H_INCLUDED
++#define GCC_COMMON_H_INCLUDED
++
++#include "plugin.h"
++#include "bversion.h"
++#include "plugin-version.h"
++#include "config.h"
++#include "system.h"
++#include "coretypes.h"
++#include "tm.h"
++#include "line-map.h"
++#include "input.h"
++#include "tree.h"
++
++#include "tree-inline.h"
++#include "version.h"
++#include "rtl.h"
++#include "tm_p.h"
++#include "flags.h"
++//#include "insn-attr.h"
++//#include "insn-config.h"
++//#include "insn-flags.h"
++#include "hard-reg-set.h"
++//#include "recog.h"
++#include "output.h"
++#include "except.h"
++#include "function.h"
++#include "toplev.h"
++//#include "expr.h"
++#include "basic-block.h"
++#include "intl.h"
++#include "ggc.h"
++//#include "regs.h"
++#include "timevar.h"
++
++#include "params.h"
++
++#if BUILDING_GCC_VERSION <= 4009
++#include "pointer-set.h"
++#else
++#include "hash-map.h"
++#endif
++
++#include "emit-rtl.h"
++//#include "reload.h"
++//#include "ira.h"
++//#include "dwarf2asm.h"
++#include "debug.h"
++#include "target.h"
++#include "langhooks.h"
++#include "cfgloop.h"
++//#include "hosthooks.h"
++#include "cgraph.h"
++#include "opts.h"
++//#include "coverage.h"
++//#include "value-prof.h"
++
++#if BUILDING_GCC_VERSION == 4005
++#include <sys/mman.h>
++#endif
++
++#if BUILDING_GCC_VERSION >= 4007
++#include "tree-pretty-print.h"
++#include "gimple-pretty-print.h"
++#endif
++
++#if BUILDING_GCC_VERSION >= 4006
++//#include "c-tree.h"
++//#include "cp/cp-tree.h"
++#include "c-family/c-common.h"
++#else
++#include "c-common.h"
++#endif
++
++#if BUILDING_GCC_VERSION <= 4008
++#include "tree-flow.h"
++#else
++#include "tree-cfgcleanup.h"
++#endif
++
++#if BUILDING_GCC_VERSION >= 4008
++#include "is-a.h"
++#endif
++
++#include "diagnostic.h"
++//#include "tree-diagnostic.h"
++#include "tree-dump.h"
++#include "tree-pass.h"
++//#include "df.h"
++#include "predict.h"
++#include "ipa-utils.h"
++
++#if BUILDING_GCC_VERSION >= 4009
++#include "varasm.h"
++#include "stor-layout.h"
++#include "internal-fn.h"
++#include "gimple-expr.h"
++#include "gimple-fold.h"
++//#include "diagnostic-color.h"
++#include "context.h"
++#include "tree-ssa-alias.h"
++#include "tree-ssa.h"
++#include "stringpool.h"
++#include "tree-ssanames.h"
++#include "print-tree.h"
++#include "tree-eh.h"
++#include "stmt.h"
++#include "gimplify.h"
++#endif
++
++#include "gimple.h"
++
++#if BUILDING_GCC_VERSION >= 4009
++#include "tree-ssa-operands.h"
++#include "tree-phinodes.h"
++#include "tree-cfg.h"
++#include "gimple-iterator.h"
++#include "gimple-ssa.h"
++#include "ssa-iterators.h"
++#endif
++
++//#include "lto/lto.h"
++#if BUILDING_GCC_VERSION >= 4007
++//#include "data-streamer.h"
++#else
++//#include "lto-streamer.h"
++#endif
++//#include "lto-compress.h"
++#if BUILDING_GCC_VERSION >= 5000
++//#include "lto-section-names.h"
++#include "builtins.h"
++#endif
++
++//#include "expr.h" where are you...
++extern rtx emit_move_insn(rtx x, rtx y);
++
++// missing from basic_block.h...
++extern void debug_dominance_info(enum cdi_direction dir);
++extern void debug_dominance_tree(enum cdi_direction dir, basic_block root);
++
++#ifdef __cplusplus
++static inline void debug_tree(const_tree t)
++{
++	debug_tree(CONST_CAST_TREE(t));
++}
++#else
++#define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
++#endif
++
++#define __unused __attribute__((__unused__))
++
++#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
++#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
++#define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
++#define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
++
++// should come from c-tree.h if only it were installed for gcc 4.5...
++#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
++
++#if BUILDING_GCC_VERSION == 4005
++#define FOR_EACH_LOCAL_DECL(FUN, I, D) for (tree vars = (FUN)->local_decls; vars && (D = TREE_VALUE(vars)); vars = TREE_CHAIN(vars), I)
++#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
++#define FOR_EACH_VEC_ELT(T, V, I, P) for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
++#define TODO_rebuild_cgraph_edges 0
++#define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))
++
++#ifndef O_BINARY
++#define O_BINARY 0
++#endif
++
++static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
++{
++	tree fndecl;
++
++	if (!is_gimple_call(stmt))
++		return false;
++	fndecl = gimple_call_fndecl(stmt);
++	if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
++		return false;
++//	print_node(stderr, "pax", fndecl, 4);
++	return DECL_FUNCTION_CODE(fndecl) == code;
++}
++
++static inline bool is_simple_builtin(tree decl)
++{
++	if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
++		return false;
++
++	switch (DECL_FUNCTION_CODE(decl)) {
++	/* Builtins that expand to constants. */
++	case BUILT_IN_CONSTANT_P:
++	case BUILT_IN_EXPECT:
++	case BUILT_IN_OBJECT_SIZE:
++	case BUILT_IN_UNREACHABLE:
++	/* Simple register moves or loads from stack. */
++	case BUILT_IN_RETURN_ADDRESS:
++	case BUILT_IN_EXTRACT_RETURN_ADDR:
++	case BUILT_IN_FROB_RETURN_ADDR:
++	case BUILT_IN_RETURN:
++	case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
++	case BUILT_IN_FRAME_ADDRESS:
++	case BUILT_IN_VA_END:
++	case BUILT_IN_STACK_SAVE:
++	case BUILT_IN_STACK_RESTORE:
++	/* Exception state returns or moves registers around. */
++	case BUILT_IN_EH_FILTER:
++	case BUILT_IN_EH_POINTER:
++	case BUILT_IN_EH_COPY_VALUES:
++	return true;
++
++	default:
++	return false;
++	}
++}
++
++static inline void add_local_decl(struct function *fun, tree d)
++{
++	gcc_assert(TREE_CODE(d) == VAR_DECL);
++	fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
++}
++#endif
++
++#if BUILDING_GCC_VERSION <= 4006
++#define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
++#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
++#define EDGE_PRESERVE 0ULL
++#define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
++#define flag_fat_lto_objects true
++
++#define get_random_seed(noinit) ({						\
++	unsigned HOST_WIDE_INT seed;						\
++	sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);	\
++	seed * seed; })
++
++#define int_const_binop(code, arg1, arg2) int_const_binop((code), (arg1), (arg2), 0)
++
++static inline bool gimple_clobber_p(gimple s __unused)
++{
++	return false;
++}
++
++static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
++{
++	unsigned i;
++
++	for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
++		tree op = gimple_asm_clobber_op(stmt, i);
++		if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
++			return true;
++	}
++
++	return false;
++}
++
++static inline tree builtin_decl_implicit(enum built_in_function fncode)
++{
++	return implicit_built_in_decls[fncode];
++}
++
++static inline int ipa_reverse_postorder(struct cgraph_node **order)
++{
++	return cgraph_postorder(order);
++}
++
++static inline struct cgraph_node *cgraph_get_create_node(tree decl)
++{
++	struct cgraph_node *node = cgraph_get_node(decl);
++
++	return node ? node : cgraph_node(decl);
++}
++
++static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
++{
++	return node->analyzed && !node->thunk.thunk_p && !node->alias;
++}
++
++static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
++{
++	struct cgraph_node *node;
++
++	for (node = cgraph_nodes; node; node = node->next)
++		if (cgraph_function_with_gimple_body_p(node))
++			return node;
++	return NULL;
++}
++
++static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
++{
++	for (node = node->next; node; node = node->next)
++		if (cgraph_function_with_gimple_body_p(node))
++			return node;
++	return NULL;
++}
++
++#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
++	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
++		(node) = cgraph_next_function_with_gimple_body(node))
++
++static inline void varpool_add_new_variable(tree decl)
++{
++	varpool_finalize_decl(decl);
++}
++#endif
++
++#if BUILDING_GCC_VERSION == 4006
++extern void debug_gimple_stmt(gimple);
++extern void debug_gimple_seq(gimple_seq);
++extern void print_gimple_seq(FILE *, gimple_seq, int, int);
++extern void print_gimple_stmt(FILE *, gimple, int, int);
++extern void print_gimple_expr(FILE *, gimple, int, int);
++extern void dump_gimple_stmt(pretty_printer *, gimple, int, int);
++#endif
++
++#if BUILDING_GCC_VERSION <= 4007
++#define FOR_EACH_FUNCTION(node) for (node = cgraph_nodes; node; node = node->next)
++#define FOR_EACH_VARIABLE(node) for (node = varpool_nodes; node; node = node->next)
++#define PROP_loops 0
++#define NODE_SYMBOL(node) (node)
++#define NODE_DECL(node) (node)->decl
++#define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
++
++static inline int bb_loop_depth(const_basic_block bb)
++{
++	return bb->loop_father ? loop_depth(bb->loop_father) : 0;
++}
++
++static inline bool gimple_store_p(gimple gs)
++{
++	tree lhs = gimple_get_lhs(gs);
++	return lhs && !is_gimple_reg(lhs);
++}
++#endif
++
++#if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
++static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
++{
++	return cgraph_alias_aliased_node(n);
++}
++#endif
++
++#if BUILDING_GCC_VERSION >= 4007 && BUILDING_GCC_VERSION <= 4009
++#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
++	cgraph_create_edge((caller), (callee), (call_stmt), (count), (freq))
++#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
++	cgraph_create_edge_including_clones((caller), (callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))
++#endif
++
++#if BUILDING_GCC_VERSION <= 4008
++#define ENTRY_BLOCK_PTR_FOR_FN(FN)	ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
++#define EXIT_BLOCK_PTR_FOR_FN(FN)	EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
++#define basic_block_info_for_fn(FN)	((FN)->cfg->x_basic_block_info)
++#define n_basic_blocks_for_fn(FN)	((FN)->cfg->x_n_basic_blocks)
++#define n_edges_for_fn(FN)		((FN)->cfg->x_n_edges)
++#define last_basic_block_for_fn(FN)	((FN)->cfg->x_last_basic_block)
++#define label_to_block_map_for_fn(FN)	((FN)->cfg->x_label_to_block_map)
++#define profile_status_for_fn(FN)	((FN)->cfg->x_profile_status)
++#define BASIC_BLOCK_FOR_FN(FN, N)	BASIC_BLOCK_FOR_FUNCTION((FN), (N))
++#define NODE_IMPLICIT_ALIAS(node)	(node)->same_body_alias
++
++static inline bool tree_fits_shwi_p(const_tree t)
++{
++	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
++		return false;
++
++	if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
++		return true;
++
++	if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
++		return true;
++
++	return false;
++}
++
++static inline bool tree_fits_uhwi_p(const_tree t)
++{
++	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
++		return false;
++
++	return TREE_INT_CST_HIGH(t) == 0;
++}
++
++static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
++{
++	gcc_assert(tree_fits_shwi_p(t));
++	return TREE_INT_CST_LOW(t);
++}
++
++static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
++{
++	gcc_assert(tree_fits_uhwi_p(t));
++	return TREE_INT_CST_LOW(t);
++}
++
++static inline const char *get_tree_code_name(enum tree_code code)
++{
++	gcc_assert(code < MAX_TREE_CODES);
++	return tree_code_name[code];
++}
++
++#define ipa_remove_stmt_references(cnode, stmt)
++typedef union gimple_statement_d gasm;
++typedef union gimple_statement_d gassign;
++typedef union gimple_statement_d gcall;
++typedef union gimple_statement_d gcond;
++typedef union gimple_statement_d gdebug;
++typedef union gimple_statement_d gphi;
++typedef union gimple_statement_d greturn;
++#endif
++
++#if BUILDING_GCC_VERSION == 4008
++#define NODE_SYMBOL(node) (&(node)->symbol)
++#define NODE_DECL(node) (node)->symbol.decl
++#endif
++
++#if BUILDING_GCC_VERSION >= 4008
++#define add_referenced_var(var)
++#define mark_sym_for_renaming(var)
++#define varpool_mark_needed_node(node)
++#define create_var_ann(var)
++#define TODO_dump_func 0
++#define TODO_dump_cgraph 0
++
++#endif
++
++#if BUILDING_GCC_VERSION <= 4009
++#define TODO_verify_il 0
++#define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE
++#endif
++
++#if BUILDING_GCC_VERSION == 4009
++typedef struct gimple_statement_base gasm;
++typedef struct gimple_statement_base gassign;
++typedef struct gimple_statement_base gcall;
++typedef struct gimple_statement_base gcond;
++typedef struct gimple_statement_base gdebug;
++typedef struct gimple_statement_base gphi;
++typedef struct gimple_statement_base greturn;
++#endif
++
++#if BUILDING_GCC_VERSION <= 4009
++typedef struct rtx_def rtx_insn;
++
++static inline void set_decl_section_name(tree node, const char *value)
++{
++	DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
++}
++
++static inline gasm *as_a_gasm(gimple stmt)
++{
++	return stmt;
++}
++
++static inline const gasm *as_a_const_gasm(const_gimple stmt)
++{
++	return stmt;
++}
++
++static inline gassign *as_a_gassign(gimple stmt)
++{
++	return stmt;
++}
++
++static inline const gassign *as_a_const_gassign(const_gimple stmt)
++{
++	return stmt;
++}
++
++static inline gcall *as_a_gcall(gimple stmt)
++{
++	return stmt;
++}
++
++static inline const gcall *as_a_const_gcall(const_gimple stmt)
++{
++	return stmt;
++}
++
++static inline gphi *as_a_gphi(gimple stmt)
++{
++	return stmt;
++}
++
++static inline const gphi *as_a_const_gphi(const_gimple stmt)
++{
++	return stmt;
++}
++
++static inline greturn *as_a_greturn(gimple stmt)
++{
++	return stmt;
++}
++
++static inline const greturn *as_a_const_greturn(const_gimple stmt)
++{
++	return stmt;
++}
++#endif
++
++#if BUILDING_GCC_VERSION >= 4009
++#define TODO_ggc_collect 0
++#define NODE_SYMBOL(node) (node)
++#define NODE_DECL(node) (node)->decl
++#define cgraph_node_name(node) (node)->name()
++#define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
++#endif
++
++#if BUILDING_GCC_VERSION >= 5000
++#define TODO_verify_ssa TODO_verify_il
++#define TODO_verify_flow TODO_verify_il
++#define TODO_verify_stmts TODO_verify_il
++#define TODO_verify_rtl_sharing TODO_verify_il
++
++//#define TREE_INT_CST_HIGH(NODE) ({ TREE_INT_CST_EXT_NUNITS(NODE) > 1 ? (unsigned HOST_WIDE_INT)TREE_INT_CST_ELT(NODE, 1) : 0; })
++
++#define INSN_DELETED_P(insn) (insn)->deleted()
++
++// symtab/cgraph related
++#define debug_cgraph_node(node) (node)->debug()
++#define cgraph_get_node(decl) cgraph_node::get(decl)
++#define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
++#define cgraph_n_nodes symtab->cgraph_count
++#define cgraph_max_uid symtab->cgraph_max_uid
++#define varpool_get_node(decl) varpool_node::get(decl)
++
++#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
++	(caller)->create_edge((callee), (call_stmt), (count), (freq))
++#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
++	(caller)->create_edge_including_clones((callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))
++
++typedef struct cgraph_node *cgraph_node_ptr;
++typedef struct cgraph_edge *cgraph_edge_p;
++typedef struct varpool_node *varpool_node_ptr;
++
++static inline void change_decl_assembler_name(tree decl, tree name)
++{
++	symtab->change_decl_assembler_name(decl, name);
++}
++
++static inline void varpool_finalize_decl(tree decl)
++{
++	varpool_node::finalize_decl(decl);
++}
++
++static inline void varpool_add_new_variable(tree decl)
++{
++	varpool_node::add(decl);
++}
++
++static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
++{
++	return node->function_symbol(availability);
++}
++
++static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
++{
++	return node->ultimate_alias_target(availability);
++}
++
++static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
++{
++	return node->only_called_directly_p();
++}
++
++static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
++{
++	return node->get_availability();
++}
++
++static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
++{
++	return node->get_alias_target();
++}
++
++static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
++{
++	return symtab->add_cgraph_insertion_hook(hook, data);
++}
++
++static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
++{
++	symtab->remove_cgraph_insertion_hook(entry);
++}
++
++static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
++{
++	return symtab->add_cgraph_removal_hook(hook, data);
++}
++
++static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
++{
++	symtab->remove_cgraph_removal_hook(entry);
++}
++
++static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
++{
++	return symtab->add_cgraph_duplication_hook(hook, data);
++}
++
++static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
++{
++	symtab->remove_cgraph_duplication_hook(entry);
++}
++
++// gimple related
++static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
++{
++	return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
++}
++
++template <>
++template <>
++inline bool is_a_helper<const gassign *>::test(const_gimple gs)
++{
++	return gs->code == GIMPLE_ASSIGN;
++}
++
++template <>
++template <>
++inline bool is_a_helper<const greturn *>::test(const_gimple gs)
++{
++	return gs->code == GIMPLE_RETURN;
++}
++
++static inline gasm *as_a_gasm(gimple stmt)
++{
++	return as_a<gasm *>(stmt);
++}
++
++static inline const gasm *as_a_const_gasm(const_gimple stmt)
++{
++	return as_a<const gasm *>(stmt);
++}
++
++static inline gassign *as_a_gassign(gimple stmt)
++{
++	return as_a<gassign *>(stmt);
++}
++
++static inline const gassign *as_a_const_gassign(const_gimple stmt)
++{
++	return as_a<const gassign *>(stmt);
++}
++
++static inline gcall *as_a_gcall(gimple stmt)
++{
++	return as_a<gcall *>(stmt);
++}
++
++static inline const gcall *as_a_const_gcall(const_gimple stmt)
++{
++	return as_a<const gcall *>(stmt);
++}
++
++static inline gphi *as_a_gphi(gimple stmt)
++{
++	return as_a<gphi *>(stmt);
++}
++
++static inline const gphi *as_a_const_gphi(const_gimple stmt)
++{
++	return as_a<const gphi *>(stmt);
++}
++
++static inline greturn *as_a_greturn(gimple stmt)
++{
++	return as_a<greturn *>(stmt);
++}
++
++static inline const greturn *as_a_const_greturn(const_gimple stmt)
++{
++	return as_a<const greturn *>(stmt);
++}
++
++// IPA/LTO related
++#define ipa_ref_list_referring_iterate(L,I,P) (L)->referring.iterate((I), &(P))
++#define ipa_ref_list_reference_iterate(L,I,P) (L)->reference.iterate((I), &(P))
++
++static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
++{
++	return dyn_cast<cgraph_node_ptr>(ref->referring);
++}
++
++static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
++{
++	referring_node->remove_stmt_references(stmt);
++}
++#endif
++
++#endif
+diff --git a/tools/gcc/gen-random-seed.sh b/tools/gcc/gen-random-seed.sh
+new file mode 100644
+index 0000000..7514850
+--- /dev/null
++++ b/tools/gcc/gen-random-seed.sh
+@@ -0,0 +1,8 @@
++#!/bin/sh
++
++if [ ! -f "$1" ]; then
++	SEED=`od -A n -t x8 -N 32 /dev/urandom | tr -d ' \n'`
++	echo "const char *randstruct_seed = \"$SEED\";" > "$1"
++	HASH=`echo -n "$SEED" | sha256sum | cut -d" " -f1 | tr -d ' \n'`
++	echo "#define RANDSTRUCT_HASHED_SEED \"$HASH\"" > "$2"
++fi
+diff --git a/tools/gcc/kallocstat_plugin.c b/tools/gcc/kallocstat_plugin.c
+new file mode 100644
+index 0000000..457d54e
+--- /dev/null
++++ b/tools/gcc/kallocstat_plugin.c
+@@ -0,0 +1,188 @@
++/*
++ * Copyright 2011-2015 by the PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to find the distribution of k*alloc sizes
++ *
++ * TODO:
++ *
++ * BUGS:
++ * - none known
++ */
++
++#include "gcc-common.h"
++
++int plugin_is_GPL_compatible;
++
++static struct plugin_info kallocstat_plugin_info = {
++	.version	= "201401260140",
++	.help		= NULL
++};
++
++static const char * const kalloc_functions[] = {
++	"__kmalloc",
++	"kmalloc",
++	"kmalloc_large",
++	"kmalloc_node",
++	"kmalloc_order",
++	"kmalloc_order_trace",
++	"kmalloc_slab",
++	"kzalloc",
++	"kzalloc_node",
++};
++
++static bool is_kalloc(const char *fnname)
++{
++	size_t i;
++
++	for (i = 0; i < ARRAY_SIZE(kalloc_functions); i++)
++		if (!strcmp(fnname, kalloc_functions[i]))
++			return true;
++	return false;
++}
++
++static unsigned int execute_kallocstat(void)
++{
++	basic_block bb;
++
++	// 1. loop through BBs and GIMPLE statements
++	FOR_EACH_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			// gimple match: 
++			tree fndecl, size;
++			gimple stmt;
++			const char *fnname;
++
++			// is it a call
++			stmt = gsi_stmt(gsi);
++			if (!is_gimple_call(stmt))
++				continue;
++			fndecl = gimple_call_fndecl(stmt);
++			if (fndecl == NULL_TREE)
++				continue;
++			if (TREE_CODE(fndecl) != FUNCTION_DECL)
++				continue;
++
++			// is it a call to k*alloc
++			fnname = DECL_NAME_POINTER(fndecl);
++			if (!is_kalloc(fnname))
++				continue;
++
++			// is the size arg const or the result of a simple const assignment
++			size = gimple_call_arg(stmt, 0);
++			while (true) {
++				expanded_location xloc;
++				size_t size_val;
++
++				if (TREE_CONSTANT(size)) {
++					xloc = expand_location(gimple_location(stmt));
++					if (!xloc.file)
++						xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
++					size_val = TREE_INT_CST_LOW(size);
++					fprintf(stderr, "kallocsize: %8zu %8zx %s %s:%u\n", size_val, size_val, fnname, xloc.file, xloc.line);
++					break;
++				}
++
++				if (TREE_CODE(size) != SSA_NAME)
++					break;
++				stmt = SSA_NAME_DEF_STMT(size);
++//debug_gimple_stmt(stmt);
++//debug_tree(size);
++				if (!stmt || !is_gimple_assign(stmt))
++					break;
++				if (gimple_num_ops(stmt) != 2)
++					break;
++				size = gimple_assign_rhs1(stmt);
++			}
++//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
++//debug_tree(gimple_call_fn(call_stmt));
++//print_node(stderr, "pax", fndecl, 4);
++		}
++	}
++
++	return 0;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data kallocstat_pass_data = {
++#else
++static struct gimple_opt_pass kallocstat_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "kallocstat",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= execute_kallocstat,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= 0
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class kallocstat_pass : public gimple_opt_pass {
++public:
++	kallocstat_pass() : gimple_opt_pass(kallocstat_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual unsigned int execute(function *) { return execute_kallocstat(); }
++#else
++	unsigned int execute() { return execute_kallocstat(); }
++#endif
++};
++}
++
++static opt_pass *make_kallocstat_pass(void)
++{
++	return new kallocstat_pass();
++}
++#else
++static struct opt_pass *make_kallocstat_pass(void)
++{
++	return &kallocstat_pass.pass;
++}
++#endif
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	struct register_pass_info kallocstat_pass_info;
++
++	kallocstat_pass_info.pass			= make_kallocstat_pass();
++	kallocstat_pass_info.reference_pass_name	= "ssa";
++	kallocstat_pass_info.ref_pass_instance_number	= 1;
++	kallocstat_pass_info.pos_op 			= PASS_POS_INSERT_AFTER;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &kallocstat_plugin_info);
++	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kallocstat_pass_info);
++
++	return 0;
++}
+diff --git a/tools/gcc/kernexec_plugin.c b/tools/gcc/kernexec_plugin.c
+new file mode 100644
+index 0000000..b0d8255
+--- /dev/null
++++ b/tools/gcc/kernexec_plugin.c
+@@ -0,0 +1,547 @@
++/*
++ * Copyright 2011-2015 by the PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to make KERNEXEC/amd64 almost as good as it is on i386
++ *
++ * TODO:
++ *
++ * BUGS:
++ * - none known
++ */
++
++#include "gcc-common.h"
++
++int plugin_is_GPL_compatible;
++
++static struct plugin_info kernexec_plugin_info = {
++	.version	= "201401260140",
++	.help		= "method=[bts|or]\tinstrumentation method\n"
++};
++
++static void (*kernexec_instrument_fptr)(gimple_stmt_iterator *);
++static void (*kernexec_instrument_retaddr)(rtx);
++
++/*
++ * add special KERNEXEC instrumentation: reload %r12 after it has been clobbered
++ */
++static void kernexec_reload_fptr_mask(gimple_stmt_iterator *gsi)
++{
++	gasm *asm_movabs_stmt;
++
++	// build asm volatile("movabs $0x8000000000000000, %%r12\n\t" : : : );
++	asm_movabs_stmt = gimple_build_asm_vec("movabs $0x8000000000000000, %%r12\n\t", NULL, NULL, NULL, NULL);
++	gimple_asm_set_volatile(asm_movabs_stmt, true);
++	gsi_insert_after(gsi, asm_movabs_stmt, GSI_CONTINUE_LINKING);
++	update_stmt(asm_movabs_stmt);
++}
++
++/*
++ * find all asm() stmts that clobber r12 and add a reload of r12
++ */
++static unsigned int execute_kernexec_reload(void)
++{
++	basic_block bb;
++
++	// 1. loop through BBs and GIMPLE statements
++	FOR_EACH_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			// gimple match: __asm__ ("" :  :  : "r12");
++			gimple stmt;
++			gasm *asm_stmt;
++			size_t nclobbers;
++
++			// is it an asm ...
++			stmt = gsi_stmt(gsi);
++			if (gimple_code(stmt) != GIMPLE_ASM)
++				continue;
++
++			asm_stmt = as_a_gasm(stmt);
++
++			// ... clobbering r12
++			nclobbers = gimple_asm_nclobbers(asm_stmt);
++			while (nclobbers--) {
++				tree op = gimple_asm_clobber_op(asm_stmt, nclobbers);
++				if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r12"))
++					continue;
++				kernexec_reload_fptr_mask(&gsi);
++//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO);
++				break;
++			}
++		}
++	}
++
++	return 0;
++}
++
++/*
++ * add special KERNEXEC instrumentation: force MSB of fptr to 1, which will produce
++ * a non-canonical address from a userland ptr and will just trigger a GPF on dereference
++ */
++static void kernexec_instrument_fptr_bts(gimple_stmt_iterator *gsi)
++{
++	gimple assign_intptr, assign_new_fptr;
++	gcall *call_stmt;
++	tree intptr, orptr, old_fptr, new_fptr, kernexec_mask;
++
++	call_stmt = as_a_gcall(gsi_stmt(*gsi));
++	old_fptr = gimple_call_fn(call_stmt);
++
++	// create temporary unsigned long variable used for bitops and cast fptr to it
++	intptr = create_tmp_var(long_unsigned_type_node, "kernexec_bts");
++	add_referenced_var(intptr);
++	intptr = make_ssa_name(intptr, NULL);
++	assign_intptr = gimple_build_assign(intptr, fold_convert(long_unsigned_type_node, old_fptr));
++	SSA_NAME_DEF_STMT(intptr) = assign_intptr;
++	gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
++	update_stmt(assign_intptr);
++
++	// apply logical or to temporary unsigned long and bitmask
++	kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0x8000000000000000LL);
++//	kernexec_mask = build_int_cstu(long_long_unsigned_type_node, 0xffffffff80000000LL);
++	orptr = fold_build2(BIT_IOR_EXPR, long_long_unsigned_type_node, intptr, kernexec_mask);
++	intptr = make_ssa_name(SSA_NAME_VAR(intptr), NULL);
++	assign_intptr = gimple_build_assign(intptr, orptr);
++	SSA_NAME_DEF_STMT(intptr) = assign_intptr;
++	gsi_insert_before(gsi, assign_intptr, GSI_SAME_STMT);
++	update_stmt(assign_intptr);
++
++	// cast temporary unsigned long back to a temporary fptr variable
++	new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_fptr");
++	add_referenced_var(new_fptr);
++	new_fptr = make_ssa_name(new_fptr, NULL);
++	assign_new_fptr = gimple_build_assign(new_fptr, fold_convert(TREE_TYPE(old_fptr), intptr));
++	SSA_NAME_DEF_STMT(new_fptr) = assign_new_fptr;
++	gsi_insert_before(gsi, assign_new_fptr, GSI_SAME_STMT);
++	update_stmt(assign_new_fptr);
++
++	// replace call stmt fn with the new fptr
++	gimple_call_set_fn(call_stmt, new_fptr);
++	update_stmt(call_stmt);
++}
++
++static void kernexec_instrument_fptr_or(gimple_stmt_iterator *gsi)
++{
++	gasm *asm_or_stmt;
++	gcall *call_stmt;
++	tree old_fptr, new_fptr, input, output;
++#if BUILDING_GCC_VERSION <= 4007
++	VEC(tree, gc) *inputs = NULL;
++	VEC(tree, gc) *outputs = NULL;
++#else
++	vec<tree, va_gc> *inputs = NULL;
++	vec<tree, va_gc> *outputs = NULL;
++#endif
++
++	call_stmt = as_a_gcall(gsi_stmt(*gsi));
++	old_fptr = gimple_call_fn(call_stmt);
++
++	// create temporary fptr variable
++	new_fptr = create_tmp_var(TREE_TYPE(old_fptr), "kernexec_or");
++	add_referenced_var(new_fptr);
++	new_fptr = make_ssa_name(new_fptr, NULL);
++
++	// build asm volatile("orq %%r12, %0\n\t" : "=r"(new_fptr) : "0"(old_fptr));
++	input = build_tree_list(NULL_TREE, build_string(2, "0"));
++	input = chainon(NULL_TREE, build_tree_list(input, old_fptr));
++	output = build_tree_list(NULL_TREE, build_string(3, "=r"));
++	output = chainon(NULL_TREE, build_tree_list(output, new_fptr));
++#if BUILDING_GCC_VERSION <= 4007
++	VEC_safe_push(tree, gc, inputs, input);
++	VEC_safe_push(tree, gc, outputs, output);
++#else
++	vec_safe_push(inputs, input);
++	vec_safe_push(outputs, output);
++#endif
++	asm_or_stmt = gimple_build_asm_vec("orq %%r12, %0\n\t", inputs, outputs, NULL, NULL);
++	SSA_NAME_DEF_STMT(new_fptr) = asm_or_stmt;
++	gimple_asm_set_volatile(asm_or_stmt, true);
++	gsi_insert_before(gsi, asm_or_stmt, GSI_SAME_STMT);
++	update_stmt(asm_or_stmt);
++
++	// replace call stmt fn with the new fptr
++	gimple_call_set_fn(call_stmt, new_fptr);
++	update_stmt(call_stmt);
++}
++
++/*
++ * find all C level function pointer dereferences and forcibly set the highest bit of the pointer
++ */
++static unsigned int execute_kernexec_fptr(void)
++{
++	basic_block bb;
++
++	// 1. loop through BBs and GIMPLE statements
++	FOR_EACH_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			// gimple match: h_1 = get_fptr (); D.2709_3 = h_1 (x_2(D));
++			tree fn;
++			gimple stmt;
++			gcall *call_stmt;
++
++			// is it a call ...
++			stmt = gsi_stmt(gsi);
++			if (!is_gimple_call(stmt))
++				continue;
++			call_stmt = as_a_gcall(stmt);
++			fn = gimple_call_fn(call_stmt);
++			if (TREE_CODE(fn) == ADDR_EXPR)
++				continue;
++			if (TREE_CODE(fn) != SSA_NAME)
++				gcc_unreachable();
++
++			// ... through a function pointer
++			if (SSA_NAME_VAR(fn) != NULL_TREE) {
++				fn = SSA_NAME_VAR(fn);
++				if (TREE_CODE(fn) != VAR_DECL && TREE_CODE(fn) != PARM_DECL) {
++					debug_tree(fn);
++					gcc_unreachable();
++				}
++			}
++			fn = TREE_TYPE(fn);
++			if (TREE_CODE(fn) != POINTER_TYPE)
++				continue;
++			fn = TREE_TYPE(fn);
++			if (TREE_CODE(fn) != FUNCTION_TYPE)
++				continue;
++
++			kernexec_instrument_fptr(&gsi);
++
++//debug_tree(gimple_call_fn(call_stmt));
++//print_gimple_stmt(stderr, call_stmt, 0, TDF_LINENO);
++		}
++	}
++
++	return 0;
++}
++
++// add special KERNEXEC instrumentation: btsq $63,(%rsp) just before retn
++static void kernexec_instrument_retaddr_bts(rtx insn)
++{
++	rtx btsq;
++	rtvec argvec, constraintvec, labelvec;
++	int line;
++
++	// create asm volatile("btsq $63,(%%rsp)":::)
++	argvec = rtvec_alloc(0);
++	constraintvec = rtvec_alloc(0);
++	labelvec = rtvec_alloc(0);
++	line = expand_location(RTL_LOCATION(insn)).line;
++	btsq = gen_rtx_ASM_OPERANDS(VOIDmode, "btsq $63,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
++	MEM_VOLATILE_P(btsq) = 1;
++//	RTX_FRAME_RELATED_P(btsq) = 1; // not for ASM_OPERANDS
++	emit_insn_before(btsq, insn);
++}
++
++// add special KERNEXEC instrumentation: orq %r12,(%rsp) just before retn
++static void kernexec_instrument_retaddr_or(rtx insn)
++{
++	rtx orq;
++	rtvec argvec, constraintvec, labelvec;
++	int line;
++
++	// create asm volatile("orq %%r12,(%%rsp)":::)
++	argvec = rtvec_alloc(0);
++	constraintvec = rtvec_alloc(0);
++	labelvec = rtvec_alloc(0);
++	line = expand_location(RTL_LOCATION(insn)).line;
++	orq = gen_rtx_ASM_OPERANDS(VOIDmode, "orq %%r12,(%%rsp)", empty_string, 0, argvec, constraintvec, labelvec, line);
++	MEM_VOLATILE_P(orq) = 1;
++//	RTX_FRAME_RELATED_P(orq) = 1; // not for ASM_OPERANDS
++	emit_insn_before(orq, insn);
++}
++
++/*
++ * find all asm level function returns and forcibly set the highest bit of the return address
++ */
++static unsigned int execute_kernexec_retaddr(void)
++{
++	rtx_insn *insn;
++
++//	if (stack_realign_drap)
++//		inform(DECL_SOURCE_LOCATION(current_function_decl), "drap detected in %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
++
++	// 1. find function returns
++	for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) {
++		// rtl match: (jump_insn 41 40 42 2 (return) fptr.c:42 634 {return_internal} (nil))
++		//            (jump_insn 12 9 11 2 (parallel [ (return) (unspec [ (0) ] UNSPEC_REP) ]) fptr.c:46 635 {return_internal_long} (nil))
++		//            (jump_insn 97 96 98 6 (simple_return) fptr.c:50 -1 (nil) -> simple_return)
++		rtx body;
++
++		// is it a retn
++		if (!JUMP_P(insn))
++			continue;
++		body = PATTERN(insn);
++		if (GET_CODE(body) == PARALLEL)
++			body = XVECEXP(body, 0, 0);
++		if (!ANY_RETURN_P(body))
++			continue;
++		kernexec_instrument_retaddr(insn);
++	}
++
++//	print_simple_rtl(stderr, get_insns());
++//	print_rtl(stderr, get_insns());
++
++	return 0;
++}
++
++static bool kernexec_cmodel_check(void)
++{
++	tree section;
++
++	if (ix86_cmodel != CM_KERNEL)
++		return false;
++
++	section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl));
++	if (!section || !TREE_VALUE(section))
++		return true;
++
++	section = TREE_VALUE(TREE_VALUE(section));
++	if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10))
++		return true;
++
++	return false;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data kernexec_reload_pass_data = {
++#else
++static struct gimple_opt_pass kernexec_reload_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "kernexec_reload",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= true,
++		.has_execute		= true,
++#else
++		.gate			= kernexec_cmodel_check,
++		.execute		= execute_kernexec_reload,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data kernexec_fptr_pass_data = {
++#else
++static struct gimple_opt_pass kernexec_fptr_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "kernexec_fptr",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= true,
++		.has_execute		= true,
++#else
++		.gate			= kernexec_cmodel_check,
++		.execute		= execute_kernexec_fptr,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa_no_phi
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data kernexec_retaddr_pass_data = {
++#else
++static struct rtl_opt_pass kernexec_retaddr_pass = {
++	.pass = {
++#endif
++		.type			= RTL_PASS,
++		.name			= "kernexec_retaddr",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= true,
++		.has_execute		= true,
++#else
++		.gate			= kernexec_cmodel_check,
++		.execute		= execute_kernexec_retaddr,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_dump_func | TODO_ggc_collect
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class kernexec_reload_pass : public gimple_opt_pass {
++public:
++	kernexec_reload_pass() : gimple_opt_pass(kernexec_reload_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual bool gate(function *) { return kernexec_cmodel_check(); }
++	virtual unsigned int execute(function *) { return execute_kernexec_reload(); }
++#else
++	bool gate() { return kernexec_cmodel_check(); }
++	unsigned int execute() { return execute_kernexec_reload(); }
++#endif
++};
++
++class kernexec_fptr_pass : public gimple_opt_pass {
++public:
++	kernexec_fptr_pass() : gimple_opt_pass(kernexec_fptr_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual bool gate(function *) { return kernexec_cmodel_check(); }
++	virtual unsigned int execute(function *) { return execute_kernexec_fptr(); }
++#else
++	bool gate() { return kernexec_cmodel_check(); }
++	unsigned int execute() { return execute_kernexec_fptr(); }
++#endif
++};
++
++class kernexec_retaddr_pass : public rtl_opt_pass {
++public:
++	kernexec_retaddr_pass() : rtl_opt_pass(kernexec_retaddr_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual bool gate(function *) { return kernexec_cmodel_check(); }
++	virtual unsigned int execute(function *) { return execute_kernexec_retaddr(); }
++#else
++	bool gate() { return kernexec_cmodel_check(); }
++	unsigned int execute() { return execute_kernexec_retaddr(); }
++#endif
++};
++}
++
++static opt_pass *make_kernexec_reload_pass(void)
++{
++	return new kernexec_reload_pass();
++}
++
++static opt_pass *make_kernexec_fptr_pass(void)
++{
++	return new kernexec_fptr_pass();
++}
++
++static opt_pass *make_kernexec_retaddr_pass(void)
++{
++	return new kernexec_retaddr_pass();
++}
++#else
++static struct opt_pass *make_kernexec_reload_pass(void)
++{
++	return &kernexec_reload_pass.pass;
++}
++
++static struct opt_pass *make_kernexec_fptr_pass(void)
++{
++	return &kernexec_fptr_pass.pass;
++}
++
++static struct opt_pass *make_kernexec_retaddr_pass(void)
++{
++	return &kernexec_retaddr_pass.pass;
++}
++#endif
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	int i;
++	struct register_pass_info kernexec_reload_pass_info;
++	struct register_pass_info kernexec_fptr_pass_info;
++	struct register_pass_info kernexec_retaddr_pass_info;
++
++	kernexec_reload_pass_info.pass				= make_kernexec_reload_pass();
++	kernexec_reload_pass_info.reference_pass_name		= "ssa";
++	kernexec_reload_pass_info.ref_pass_instance_number	= 1;
++	kernexec_reload_pass_info.pos_op 			= PASS_POS_INSERT_AFTER;
++
++	kernexec_fptr_pass_info.pass				= make_kernexec_fptr_pass();
++	kernexec_fptr_pass_info.reference_pass_name		= "ssa";
++	kernexec_fptr_pass_info.ref_pass_instance_number	= 1;
++	kernexec_fptr_pass_info.pos_op 				= PASS_POS_INSERT_AFTER;
++
++	kernexec_retaddr_pass_info.pass				= make_kernexec_retaddr_pass();
++	kernexec_retaddr_pass_info.reference_pass_name		= "pro_and_epilogue";
++	kernexec_retaddr_pass_info.ref_pass_instance_number	= 1;
++	kernexec_retaddr_pass_info.pos_op 			= PASS_POS_INSERT_AFTER;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &kernexec_plugin_info);
++
++	if (TARGET_64BIT == 0)
++		return 0;
++
++	for (i = 0; i < argc; ++i) {
++		if (!strcmp(argv[i].key, "method")) {
++			if (!argv[i].value) {
++				error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++				continue;
++			}
++			if (!strcmp(argv[i].value, "bts")) {
++				kernexec_instrument_fptr = kernexec_instrument_fptr_bts;
++				kernexec_instrument_retaddr = kernexec_instrument_retaddr_bts;
++			} else if (!strcmp(argv[i].value, "or")) {
++				kernexec_instrument_fptr = kernexec_instrument_fptr_or;
++				kernexec_instrument_retaddr = kernexec_instrument_retaddr_or;
++				fix_register("r12", 1, 1);
++			} else
++				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++	if (!kernexec_instrument_fptr || !kernexec_instrument_retaddr)
++		error(G_("no instrumentation method was selected via '-fplugin-arg-%s-method'"), plugin_name);
++
++	if (kernexec_instrument_fptr == kernexec_instrument_fptr_or)
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_reload_pass_info);
++	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_fptr_pass_info);
++	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &kernexec_retaddr_pass_info);
++
++	return 0;
++}
+diff --git a/tools/gcc/latent_entropy_plugin.c b/tools/gcc/latent_entropy_plugin.c
+new file mode 100644
+index 0000000..ac6f9b4
+--- /dev/null
++++ b/tools/gcc/latent_entropy_plugin.c
+@@ -0,0 +1,474 @@
++/*
++ * Copyright 2012-2015 by the PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to help generate a little bit of entropy from program state,
++ * used throughout the uptime of the kernel
++ *
++ * TODO:
++ * - add ipa pass to identify not explicitly marked candidate functions
++ * - mix in more program state (function arguments/return values, loop variables, etc)
++ * - more instrumentation control via attribute parameters
++ *
++ * BUGS:
++ * - none known
++ */
++
++#include "gcc-common.h"
++
++int plugin_is_GPL_compatible;
++
++static GTY(()) tree latent_entropy_decl;
++
++static struct plugin_info latent_entropy_plugin_info = {
++	.version	= "201504282240",
++	.help		= NULL
++};
++
++static unsigned HOST_WIDE_INT seed;
++static unsigned HOST_WIDE_INT get_random_const(void)
++{
++	unsigned int i;
++	unsigned HOST_WIDE_INT ret = 0;
++
++	for (i = 0; i < 8 * sizeof ret; i++) {
++		ret = (ret << 1) | (seed & 1);
++		seed >>= 1;
++		if (ret & 1)
++			seed ^= 0xD800000000000000ULL;
++	}
++
++	return ret;
++}
++
++static tree handle_latent_entropy_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	tree type;
++	unsigned long long mask;
++#if BUILDING_GCC_VERSION <= 4007
++	VEC(constructor_elt, gc) *vals;
++#else
++	vec<constructor_elt, va_gc> *vals;
++#endif
++
++	switch (TREE_CODE(*node)) {
++	default:
++		*no_add_attrs = true;
++		error("%qE attribute only applies to functions and variables", name);
++		break;
++
++	case VAR_DECL:
++		if (DECL_INITIAL(*node)) {
++			*no_add_attrs = true;
++			error("variable %qD with %qE attribute must not be initialized", *node, name);
++			break;
++		}
++
++		if (!TREE_STATIC(*node)) {
++			*no_add_attrs = true;
++			error("variable %qD with %qE attribute must not be local", *node, name);
++			break;
++		}
++
++		type = TREE_TYPE(*node);
++		switch (TREE_CODE(type)) {
++		default:
++			*no_add_attrs = true;
++			error("variable %qD with %qE attribute must be an integer or a fixed length integer array type or a fixed sized structure with integer fields", *node, name);
++			break;
++
++		case RECORD_TYPE: {
++			tree field;
++			unsigned int nelt = 0;
++
++			for (field = TYPE_FIELDS(type); field; nelt++, field = TREE_CHAIN(field)) {
++				tree fieldtype;
++
++				fieldtype = TREE_TYPE(field);
++				if (TREE_CODE(fieldtype) != INTEGER_TYPE) {
++					*no_add_attrs = true;
++					error("structure variable %qD with %qE attribute has a non-integer field %qE", *node, name, field);
++					break;
++				}
++			}
++
++			if (field)
++				break;
++
++#if BUILDING_GCC_VERSION <= 4007
++			vals = VEC_alloc(constructor_elt, gc, nelt);
++#else
++			vec_alloc(vals, nelt);
++#endif
++
++			for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
++				tree fieldtype;
++
++				fieldtype = TREE_TYPE(field);
++				mask = 1ULL << (TREE_INT_CST_LOW(TYPE_SIZE(fieldtype)) - 1);
++				mask = 2 * (mask - 1) + 1;
++
++				if (TYPE_UNSIGNED(fieldtype))
++					CONSTRUCTOR_APPEND_ELT(vals, field, build_int_cstu(fieldtype, mask & get_random_const()));
++				else
++					CONSTRUCTOR_APPEND_ELT(vals, field, build_int_cst(fieldtype, mask & get_random_const()));
++			}
++
++			DECL_INITIAL(*node) = build_constructor(type, vals);
++//debug_tree(DECL_INITIAL(*node));
++			break;
++		}
++
++		case INTEGER_TYPE:
++			mask = 1ULL << (TREE_INT_CST_LOW(TYPE_SIZE(type)) - 1);
++			mask = 2 * (mask - 1) + 1;
++
++			if (TYPE_UNSIGNED(type))
++				DECL_INITIAL(*node) = build_int_cstu(type, mask & get_random_const());
++			else
++				DECL_INITIAL(*node) = build_int_cst(type, mask & get_random_const());
++			break;
++
++		case ARRAY_TYPE: {
++			tree elt_type, array_size, elt_size;
++			unsigned int i, nelt;
++
++			elt_type = TREE_TYPE(type);
++			elt_size = TYPE_SIZE_UNIT(TREE_TYPE(type));
++			array_size = TYPE_SIZE_UNIT(type);
++
++			if (TREE_CODE(elt_type) != INTEGER_TYPE || !array_size || TREE_CODE(array_size) != INTEGER_CST) {
++				*no_add_attrs = true;
++				error("array variable %qD with %qE attribute must be a fixed length integer array type", *node, name);
++				break;
++			}
++
++			nelt = TREE_INT_CST_LOW(array_size) / TREE_INT_CST_LOW(elt_size);
++#if BUILDING_GCC_VERSION <= 4007
++			vals = VEC_alloc(constructor_elt, gc, nelt);
++#else
++			vec_alloc(vals, nelt);
++#endif
++
++			mask = 1ULL << (TREE_INT_CST_LOW(TYPE_SIZE(elt_type)) - 1);
++			mask = 2 * (mask - 1) + 1;
++
++			for (i = 0; i < nelt; i++)
++				if (TYPE_UNSIGNED(elt_type))
++					CONSTRUCTOR_APPEND_ELT(vals, size_int(i), build_int_cstu(elt_type, mask & get_random_const()));
++				else
++					CONSTRUCTOR_APPEND_ELT(vals, size_int(i), build_int_cst(elt_type, mask & get_random_const()));
++
++			DECL_INITIAL(*node) = build_constructor(type, vals);
++//debug_tree(DECL_INITIAL(*node));
++			break;
++		}
++		}
++		break;
++
++	case FUNCTION_DECL:
++		break;
++	}
++
++	return NULL_TREE;
++}
++
++static struct attribute_spec latent_entropy_attr = {
++	.name				= "latent_entropy",
++	.min_length			= 0,
++	.max_length			= 0,
++	.decl_required			= true,
++	.type_required			= false,
++	.function_type_required		= false,
++	.handler			= handle_latent_entropy_attribute,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity		= false
++#endif
++};
++
++static void register_attributes(void *event_data, void *data)
++{
++	register_attribute(&latent_entropy_attr);
++}
++
++static bool gate_latent_entropy(void)
++{
++	// don't bother with noreturn functions for now
++	if (TREE_THIS_VOLATILE(current_function_decl))
++		return false;
++
++	// gcc-4.5 doesn't discover some trivial noreturn functions
++	if (EDGE_COUNT(EXIT_BLOCK_PTR_FOR_FN(cfun)->preds) == 0)
++		return false;
++
++	return lookup_attribute("latent_entropy", DECL_ATTRIBUTES(current_function_decl)) != NULL_TREE;
++}
++
++static enum tree_code get_op(tree *rhs)
++{
++	static enum tree_code op;
++	unsigned HOST_WIDE_INT random_const;
++
++	random_const = get_random_const();
++
++	switch (op) {
++	case BIT_XOR_EXPR:
++		op = PLUS_EXPR;
++		break;
++
++	case PLUS_EXPR:
++		if (rhs) {
++			op = LROTATE_EXPR;
++			random_const &= HOST_BITS_PER_WIDE_INT - 1;
++			break;
++		}
++
++	case LROTATE_EXPR:
++	default:
++		op = BIT_XOR_EXPR;
++		break;
++	}
++	if (rhs)
++		*rhs = build_int_cstu(unsigned_intDI_type_node, random_const);
++	return op;
++}
++
++static void perturb_local_entropy(basic_block bb, tree local_entropy)
++{
++	gimple_stmt_iterator gsi;
++	gimple assign;
++	tree addxorrol, rhs;
++	enum tree_code op;
++
++	op = get_op(&rhs);
++	addxorrol = fold_build2_loc(UNKNOWN_LOCATION, op, unsigned_intDI_type_node, local_entropy, rhs);
++	assign = gimple_build_assign(local_entropy, addxorrol);
++	gsi = gsi_after_labels(bb);
++	gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++//debug_bb(bb);
++}
++
++static void perturb_latent_entropy(basic_block bb, tree rhs)
++{
++	gimple_stmt_iterator gsi;
++	gimple assign;
++	tree addxorrol, temp;
++
++	// 1. create temporary copy of latent_entropy
++	temp = create_tmp_var(unsigned_intDI_type_node, "temp_latent_entropy");
++	add_referenced_var(temp);
++
++	// 2. read...
++	temp = make_ssa_name(temp, NULL);
++	assign = gimple_build_assign(temp, latent_entropy_decl);
++	SSA_NAME_DEF_STMT(temp) = assign;
++	add_referenced_var(latent_entropy_decl);
++	gsi = gsi_after_labels(bb);
++	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++
++	// 3. ...modify...
++	addxorrol = fold_build2_loc(UNKNOWN_LOCATION, get_op(NULL), unsigned_intDI_type_node, temp, rhs);
++	temp = make_ssa_name(SSA_NAME_VAR(temp), NULL);
++	assign = gimple_build_assign(temp, addxorrol);
++	SSA_NAME_DEF_STMT(temp) = assign;
++	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++
++	// 4. ...write latent_entropy
++	assign = gimple_build_assign(latent_entropy_decl, temp);
++	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++}
++
++static unsigned int execute_latent_entropy(void)
++{
++	basic_block bb;
++	gimple assign;
++	gimple_stmt_iterator gsi;
++	tree local_entropy;
++
++	if (!latent_entropy_decl) {
++#if BUILDING_GCC_VERSION >= 4009
++		varpool_node *node;
++#else
++		struct varpool_node *node;
++#endif
++
++		FOR_EACH_VARIABLE(node) {
++			tree var = NODE_DECL(node);
++
++			if (DECL_NAME_LENGTH(var) < sizeof("latent_entropy") - 1)
++				continue;
++			if (strcmp(IDENTIFIER_POINTER(DECL_NAME(var)), "latent_entropy"))
++				continue;
++			latent_entropy_decl = var;
++//			debug_tree(var);
++			break;
++		}
++		if (!latent_entropy_decl) {
++//			debug_tree(current_function_decl);
++			return 0;
++		}
++	}
++
++//fprintf(stderr, "latent_entropy: %s\n", IDENTIFIER_POINTER(DECL_NAME(current_function_decl)));
++
++	// 1. create local entropy variable
++	local_entropy = create_tmp_var(unsigned_intDI_type_node, "local_entropy");
++	add_referenced_var(local_entropy);
++	mark_sym_for_renaming(local_entropy);
++
++	// 2. initialize local entropy variable
++	bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
++	if (dom_info_available_p(CDI_DOMINATORS))
++		set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
++	gsi = gsi_start_bb(bb);
++
++	assign = gimple_build_assign(local_entropy, build_int_cstu(unsigned_intDI_type_node, get_random_const()));
++//	gimple_set_location(assign, loc);
++	gsi_insert_after(&gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++//debug_bb(bb);
++	gcc_assert(single_succ_p(bb));
++	bb = single_succ(bb);
++
++	// 3. instrument each BB with an operation on the local entropy variable
++	while (bb != EXIT_BLOCK_PTR_FOR_FN(cfun)) {
++		perturb_local_entropy(bb, local_entropy);
++//debug_bb(bb);
++		bb = bb->next_bb;
++	};
++
++	// 4. mix local entropy into the global entropy variable
++	gcc_assert(single_pred_p(EXIT_BLOCK_PTR_FOR_FN(cfun)));
++	perturb_latent_entropy(single_pred(EXIT_BLOCK_PTR_FOR_FN(cfun)), local_entropy);
++//debug_bb(single_pred(EXIT_BLOCK_PTR_FOR_FN(cfun)));
++	return 0;
++}
++
++static void latent_entropy_start_unit(void *gcc_data, void *user_data)
++{
++	tree latent_entropy_type;
++
++	seed = get_random_seed(false);
++
++	if (in_lto_p)
++		return;
++
++	// extern volatile u64 latent_entropy
++	gcc_assert(TYPE_PRECISION(long_long_unsigned_type_node) == 64);
++	latent_entropy_type = build_qualified_type(long_long_unsigned_type_node, TYPE_QUALS(long_long_unsigned_type_node) | TYPE_QUAL_VOLATILE);
++	latent_entropy_decl = build_decl(UNKNOWN_LOCATION, VAR_DECL, get_identifier("latent_entropy"), latent_entropy_type);
++
++	TREE_STATIC(latent_entropy_decl) = 1;
++	TREE_PUBLIC(latent_entropy_decl) = 1;
++	TREE_USED(latent_entropy_decl) = 1;
++	DECL_PRESERVE_P(latent_entropy_decl) = 1;
++	TREE_THIS_VOLATILE(latent_entropy_decl) = 1;
++	DECL_EXTERNAL(latent_entropy_decl) = 1;
++	DECL_ARTIFICIAL(latent_entropy_decl) = 1;
++	lang_hooks.decls.pushdecl(latent_entropy_decl);
++//	DECL_ASSEMBLER_NAME(latent_entropy_decl);
++//	varpool_finalize_decl(latent_entropy_decl);
++//	varpool_mark_needed_node(latent_entropy_decl);
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data latent_entropy_pass_data = {
++#else
++static struct gimple_opt_pass latent_entropy_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "latent_entropy",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= true,
++		.has_execute		= true,
++#else
++		.gate			= gate_latent_entropy,
++		.execute		= execute_latent_entropy,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= PROP_gimple_leh | PROP_cfg,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
++		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class latent_entropy_pass : public gimple_opt_pass {
++public:
++	latent_entropy_pass() : gimple_opt_pass(latent_entropy_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual bool gate(function *) { return gate_latent_entropy(); }
++	virtual unsigned int execute(function *) { return execute_latent_entropy(); }
++#else
++	bool gate() { return gate_latent_entropy(); }
++	unsigned int execute() { return execute_latent_entropy(); }
++#endif
++};
++}
++
++static opt_pass *make_latent_entropy_pass(void)
++{
++	return new latent_entropy_pass();
++}
++#else
++static struct opt_pass *make_latent_entropy_pass(void)
++{
++	return &latent_entropy_pass.pass;
++}
++#endif
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	struct register_pass_info latent_entropy_pass_info;
++
++	latent_entropy_pass_info.pass				= make_latent_entropy_pass();
++	latent_entropy_pass_info.reference_pass_name		= "optimized";
++	latent_entropy_pass_info.ref_pass_instance_number	= 1;
++	latent_entropy_pass_info.pos_op 			= PASS_POS_INSERT_BEFORE;
++	static const struct ggc_root_tab gt_ggc_r_gt_latent_entropy[] = {
++		{
++			.base = &latent_entropy_decl,
++			.nelt = 1,
++			.stride = sizeof(latent_entropy_decl),
++			.cb = &gt_ggc_mx_tree_node,
++			.pchw = &gt_pch_nx_tree_node
++		},
++		LAST_GGC_ROOT_TAB
++	};
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &latent_entropy_plugin_info);
++	register_callback(plugin_name, PLUGIN_START_UNIT, &latent_entropy_start_unit, NULL);
++	register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_latent_entropy);
++	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &latent_entropy_pass_info);
++	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
++
++	return 0;
++}
+diff --git a/tools/gcc/randomize_layout_plugin.c b/tools/gcc/randomize_layout_plugin.c
+new file mode 100644
+index 0000000..713be61
+--- /dev/null
++++ b/tools/gcc/randomize_layout_plugin.c
+@@ -0,0 +1,918 @@
++/*
++ * Copyright 2014,2015 by Open Source Security, Inc., Brad Spengler <spender@grsecurity.net>
++ *                   and PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Usage:
++ * $ # for 4.5/4.6/C based 4.7
++ * $ gcc -I`gcc -print-file-name=plugin`/include -I`gcc -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o randomize_layout_plugin.so randomize_layout_plugin.c
++ * $ # for C++ based 4.7/4.8+
++ * $ g++ -I`g++ -print-file-name=plugin`/include -I`g++ -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o randomize_layout_plugin.so randomize_layout_plugin.c
++ * $ gcc -fplugin=./randomize_layout_plugin.so test.c -O2
++ */
++
++#include "gcc-common.h"
++#include "randomize_layout_seed.h"
++
++#if BUILDING_GCC_MAJOR < 4 || (BUILDING_GCC_MAJOR == 4 && BUILDING_GCC_MINOR < 6) || \
++   (BUILDING_GCC_MAJOR == 4 && BUILDING_GCC_MINOR == 6 && BUILDING_GCC_PATCHLEVEL < 4)
++#error "The RANDSTRUCT plugin requires GCC 4.6.4 or newer."
++#endif
++
++#define ORIG_TYPE_NAME(node) \
++	(TYPE_NAME(TYPE_MAIN_VARIANT(node)) != NULL_TREE ? ((const unsigned char *)IDENTIFIER_POINTER(TYPE_NAME(TYPE_MAIN_VARIANT(node)))) : (const unsigned char *)"anonymous")
++
++int plugin_is_GPL_compatible;
++
++static int performance_mode;
++
++static struct plugin_info randomize_layout_plugin_info = {
++	.version	= "201402201816",
++	.help		= "disable\t\t\tdo not activate plugin\n"
++			  "performance-mode\tenable cacheline-aware layout randomization\n"
++};
++
++/* from old Linux dcache.h */
++static inline unsigned long
++partial_name_hash(unsigned long c, unsigned long prevhash)
++{
++	return (prevhash + (c << 4) + (c >> 4)) * 11;
++}
++static inline unsigned int
++name_hash(const unsigned char *name)
++{
++	unsigned long hash = 0;
++	unsigned int len = strlen((const char *)name);
++	while (len--)
++		hash = partial_name_hash(*name++, hash);
++	return (unsigned int)hash;
++}
++
++static tree handle_randomize_layout_attr(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	tree type;
++
++	*no_add_attrs = true;
++	if (TREE_CODE(*node) == FUNCTION_DECL) {
++		error("%qE attribute does not apply to functions (%qF)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TREE_CODE(*node) == PARM_DECL) {
++		error("%qE attribute does not apply to function parameters (%qD)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TREE_CODE(*node) == VAR_DECL) {
++		error("%qE attribute does not apply to variables (%qD)", name, *node);
++		return NULL_TREE;
++	}
++
++	if (TYPE_P(*node)) {
++		type = *node;
++	} else {
++		gcc_assert(TREE_CODE(*node) == TYPE_DECL);
++		type = TREE_TYPE(*node);
++	}
++
++	if (TREE_CODE(type) != RECORD_TYPE) {
++		error("%qE attribute used on %qT applies to struct types only", name, type);
++		return NULL_TREE;
++	}
++
++	if (lookup_attribute(IDENTIFIER_POINTER(name), TYPE_ATTRIBUTES(type))) {
++		error("%qE attribute is already applied to the type %qT", name, type);
++		return NULL_TREE;
++	}
++
++	*no_add_attrs = false;
++
++	return NULL_TREE;
++}
++
++/* set on complete types that we don't need to inspect further at all */
++static tree handle_randomize_considered_attr(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	*no_add_attrs = false;
++	return NULL_TREE;
++}
++
++/*
++ * set on types that we've performed a shuffle on, to prevent re-shuffling
++ * this does not preclude us from inspecting its fields for potential shuffles
++ */
++static tree handle_randomize_performed_attr(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	*no_add_attrs = false;
++	return NULL_TREE;
++}
++
++/*
++ * 64bit variant of Bob Jenkins' public domain PRNG
++ * 256 bits of internal state
++ */
++
++typedef unsigned long long u64;
++
++typedef struct ranctx { u64 a; u64 b; u64 c; u64 d; } ranctx;
++
++#define rot(x,k) (((x)<<(k))|((x)>>(64-(k))))
++static u64 ranval(ranctx *x) {
++	u64 e = x->a - rot(x->b, 7);
++	x->a = x->b ^ rot(x->c, 13);
++	x->b = x->c + rot(x->d, 37);
++	x->c = x->d + e;
++	x->d = e + x->a;
++	return x->d;
++}
++
++static void raninit(ranctx *x, u64 *seed) {
++	int i;
++
++	x->a = seed[0];
++	x->b = seed[1];
++	x->c = seed[2];
++	x->d = seed[3];
++
++	for (i=0; i < 30; ++i)
++		(void)ranval(x);
++}
++
++static u64 shuffle_seed[4];
++
++struct partition_group {
++	tree tree_start;
++	unsigned long start;
++	unsigned long length;
++};
++
++static void partition_struct(tree *fields, unsigned long length, struct partition_group *size_groups, unsigned long *num_groups)
++{
++	unsigned long i;
++	unsigned long accum_size = 0;
++	unsigned long accum_length = 0;
++	unsigned long group_idx = 0;
++
++	gcc_assert(length < INT_MAX);
++
++	memset(size_groups, 0, sizeof(struct partition_group) * length);
++
++	for (i = 0; i < length; i++) {
++		if (size_groups[group_idx].tree_start == NULL_TREE) {
++			size_groups[group_idx].tree_start = fields[i];
++			size_groups[group_idx].start = i;
++			accum_length = 0;
++			accum_size = 0;
++		}
++		accum_size += (unsigned long)int_size_in_bytes(TREE_TYPE(fields[i]));
++		accum_length++;
++		if (accum_size >= 64) {
++			size_groups[group_idx].length = accum_length;
++			accum_length = 0;
++			group_idx++;
++		}
++	}
++
++	if (size_groups[group_idx].tree_start != NULL_TREE &&
++	    !size_groups[group_idx].length) {
++		size_groups[group_idx].length = accum_length;
++		group_idx++;
++	}
++
++	*num_groups = group_idx;
++}
++
++static void performance_shuffle(tree *newtree, unsigned long length, ranctx *prng_state)
++{
++	unsigned long i, x;
++	struct partition_group size_group[length];
++	unsigned long num_groups = 0;
++	unsigned long randnum;
++
++	partition_struct(newtree, length, (struct partition_group *)&size_group, &num_groups);
++	for (i = num_groups - 1; i > 0; i--) {
++		struct partition_group tmp;
++		randnum = ranval(prng_state) % (i + 1);
++		tmp = size_group[i];
++		size_group[i] = size_group[randnum];
++		size_group[randnum] = tmp;
++	}
++
++	for (x = 0; x < num_groups; x++) {
++		for (i = size_group[x].start + size_group[x].length - 1; i > size_group[x].start; i--) {
++			tree tmp;
++			if (DECL_BIT_FIELD_TYPE(newtree[i]))
++				continue;
++			randnum = ranval(prng_state) % (i + 1);
++			// we could handle this case differently if desired
++			if (DECL_BIT_FIELD_TYPE(newtree[randnum]))
++				continue;
++			tmp = newtree[i];
++			newtree[i] = newtree[randnum];
++			newtree[randnum] = tmp;
++		}
++	}
++}
++
++static void full_shuffle(tree *newtree, unsigned long length, ranctx *prng_state)
++{
++	unsigned long i, randnum;
++
++	for (i = length - 1; i > 0; i--) {
++		tree tmp;
++		randnum = ranval(prng_state) % (i + 1);
++		tmp = newtree[i];
++		newtree[i] = newtree[randnum];
++		newtree[randnum] = tmp;
++	}
++}
++
++/* modern in-place Fisher-Yates shuffle */
++static void shuffle(const_tree type, tree *newtree, unsigned long length)
++{
++	unsigned long i;
++	u64 seed[4];
++	ranctx prng_state;
++	const unsigned char *structname;
++
++	if (length == 0)
++		return;
++
++	gcc_assert(TREE_CODE(type) == RECORD_TYPE);
++
++	structname = ORIG_TYPE_NAME(type);
++
++#ifdef __DEBUG_PLUGIN
++	fprintf(stderr, "Shuffling struct %s %p\n", (const char *)structname, type);
++#ifdef __DEBUG_VERBOSE
++	debug_tree((tree)type);
++#endif
++#endif
++
++	for (i = 0; i < 4; i++) {
++		seed[i] = shuffle_seed[i];
++		seed[i] ^= name_hash(structname);
++	}
++
++	raninit(&prng_state, (u64 *)&seed);
++
++	if (performance_mode)
++		performance_shuffle(newtree, length, &prng_state);
++	else
++		full_shuffle(newtree, length, &prng_state);
++}
++
++static bool is_flexible_array(const_tree field)
++{
++	const_tree fieldtype;
++	const_tree typesize;
++	const_tree elemtype;
++	const_tree elemsize;
++
++	fieldtype = TREE_TYPE(field);
++	typesize = TYPE_SIZE(fieldtype);
++
++	if (TREE_CODE(fieldtype) != ARRAY_TYPE)
++		return false;
++
++	elemtype = TREE_TYPE(fieldtype);
++	elemsize = TYPE_SIZE(elemtype);
++
++	/* size of type is represented in bits */
++
++	if (typesize == NULL_TREE && TYPE_DOMAIN(fieldtype) != NULL_TREE &&
++	    TYPE_MAX_VALUE(TYPE_DOMAIN(fieldtype)) == NULL_TREE)
++		return true;
++
++	if (typesize != NULL_TREE && 
++	    (TREE_CONSTANT(typesize) && (!TREE_INT_CST_LOW(typesize) ||
++	     TREE_INT_CST_LOW(typesize) == TREE_INT_CST_LOW(elemsize))))
++		return true;
++
++	return false;
++}
++
++static int relayout_struct(tree type)
++{
++	unsigned long num_fields = (unsigned long)list_length(TYPE_FIELDS(type));
++	unsigned long shuffle_length = num_fields;
++	tree field;
++	tree newtree[num_fields];
++	unsigned long i;
++	tree list;
++	tree variant;
++	expanded_location xloc;
++
++	if (TYPE_FIELDS(type) == NULL_TREE)
++		return 0;
++
++	if (num_fields < 2)
++		return 0;
++
++	gcc_assert(TREE_CODE(type) == RECORD_TYPE);
++
++	gcc_assert(num_fields < INT_MAX);
++
++	if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(type)) ||
++	    lookup_attribute("no_randomize_layout", TYPE_ATTRIBUTES(TYPE_MAIN_VARIANT(type))))
++		return 0;
++
++	/* Workaround for 3rd-party VirtualBox source that we can't modify ourselves */
++	if (!strcmp((const char *)ORIG_TYPE_NAME(type), "INTNETTRUNKFACTORY") ||
++	    !strcmp((const char *)ORIG_TYPE_NAME(type), "RAWPCIFACTORY"))
++		return 0;
++
++	/* throw out any structs in uapi */
++	xloc = expand_location(DECL_SOURCE_LOCATION(TYPE_FIELDS(type)));
++
++	if (strstr(xloc.file, "/uapi/"))
++		error(G_("attempted to randomize userland API struct %s"), ORIG_TYPE_NAME(type));
++
++	for (field = TYPE_FIELDS(type), i = 0; field; field = TREE_CHAIN(field), i++) {
++		gcc_assert(TREE_CODE(field) == FIELD_DECL);
++		newtree[i] = field;
++	}
++
++	/*
++	 * enforce that we don't randomize the layout of the last
++	 * element of a struct if it's a 0 or 1-length array
++	 * or a proper flexible array
++	 */
++	if (is_flexible_array(newtree[num_fields - 1]))
++		shuffle_length--;
++
++	shuffle(type, (tree *)newtree, shuffle_length);
++
++	/*
++	 * set up a bogus anonymous struct field designed to error out on unnamed struct initializers
++	 * as gcc provides no other way to detect such code
++	 */
++	list = make_node(FIELD_DECL);
++	TREE_CHAIN(list) = newtree[0];
++	TREE_TYPE(list) = void_type_node;
++	DECL_SIZE(list) = bitsize_zero_node;
++	DECL_NONADDRESSABLE_P(list) = 1;
++	DECL_FIELD_BIT_OFFSET(list) = bitsize_zero_node;
++	DECL_SIZE_UNIT(list) = size_zero_node;
++	DECL_FIELD_OFFSET(list) = size_zero_node;
++	DECL_CONTEXT(list) = type;
++	// to satisfy the constify plugin
++	TREE_READONLY(list) = 1;
++
++	for (i = 0; i < num_fields - 1; i++)
++		TREE_CHAIN(newtree[i]) = newtree[i+1];
++	TREE_CHAIN(newtree[num_fields - 1]) = NULL_TREE;
++
++	for (variant = TYPE_MAIN_VARIANT(type); variant; variant = TYPE_NEXT_VARIANT(variant)) {
++		TYPE_FIELDS(variant) = list;
++		TYPE_ATTRIBUTES(variant) = copy_list(TYPE_ATTRIBUTES(variant));
++		TYPE_ATTRIBUTES(variant) = tree_cons(get_identifier("randomize_performed"), NULL_TREE, TYPE_ATTRIBUTES(variant));
++		// force a re-layout
++		TYPE_SIZE(variant) = NULL_TREE;
++		layout_type(variant);
++	}
++
++	return 1;
++}
++
++/* from constify plugin */
++static const_tree get_field_type(const_tree field)
++{
++	return strip_array_types(TREE_TYPE(field));
++}
++
++/* from constify plugin */
++static bool is_fptr(const_tree fieldtype)
++{
++	if (TREE_CODE(fieldtype) != POINTER_TYPE)
++		return false;
++
++	return TREE_CODE(TREE_TYPE(fieldtype)) == FUNCTION_TYPE;
++}
++
++/* derived from constify plugin */
++static int is_pure_ops_struct(const_tree node)
++{
++	const_tree field;
++
++	gcc_assert(TREE_CODE(node) == RECORD_TYPE || TREE_CODE(node) == UNION_TYPE);
++
++	for (field = TYPE_FIELDS(node); field; field = TREE_CHAIN(field)) {
++		const_tree fieldtype = get_field_type(field);
++		enum tree_code code = TREE_CODE(fieldtype);
++
++		if (node == fieldtype)
++			continue;
++
++		if (!is_fptr(fieldtype))
++			return 0;
++
++		if (code != RECORD_TYPE && code != UNION_TYPE)
++			continue;
++
++		if (!is_pure_ops_struct(fieldtype))
++			return 0;
++	}
++
++	return 1;
++}
++
++static void randomize_type(tree type)
++{
++	tree variant;
++
++	gcc_assert(TREE_CODE(type) == RECORD_TYPE);
++
++	if (lookup_attribute("randomize_considered", TYPE_ATTRIBUTES(type)))
++		return;
++
++	if (lookup_attribute("randomize_layout", TYPE_ATTRIBUTES(TYPE_MAIN_VARIANT(type))) || is_pure_ops_struct(type))
++		relayout_struct(type);
++
++	for (variant = TYPE_MAIN_VARIANT(type); variant; variant = TYPE_NEXT_VARIANT(variant)) {
++		TYPE_ATTRIBUTES(type) = copy_list(TYPE_ATTRIBUTES(type));
++		TYPE_ATTRIBUTES(type) = tree_cons(get_identifier("randomize_considered"), NULL_TREE, TYPE_ATTRIBUTES(type));
++	}
++#ifdef __DEBUG_PLUGIN
++	fprintf(stderr, "Marking randomize_considered on struct %s\n", ORIG_TYPE_NAME(type));
++#ifdef __DEBUG_VERBOSE
++	debug_tree(type);
++#endif
++#endif
++}
++
++static void randomize_layout_finish_decl(void *event_data, void *data)
++{
++	tree decl = (tree)event_data;
++	tree type;
++
++	if (decl == NULL_TREE || decl == error_mark_node)
++		return;
++
++	type = TREE_TYPE(decl);
++
++	if (TREE_CODE(decl) != VAR_DECL)
++		return;
++
++	if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
++		return;
++
++	if (!lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(type)))
++		return;
++
++	relayout_decl(decl);
++}
++
++static void finish_type(void *event_data, void *data)
++{
++	tree type = (tree)event_data;
++
++	if (type == NULL_TREE || type == error_mark_node)
++		return;
++
++	if (TREE_CODE(type) != RECORD_TYPE)
++		return;
++
++	if (TYPE_FIELDS(type) == NULL_TREE)
++		return;
++
++	if (lookup_attribute("randomize_considered", TYPE_ATTRIBUTES(type)))
++		return;
++
++#ifdef __DEBUG_PLUGIN
++	fprintf(stderr, "Calling randomize_type on %s\n", ORIG_TYPE_NAME(type));
++#endif
++#ifdef __DEBUG_VERBOSE
++	debug_tree(type);
++#endif
++	randomize_type(type);
++
++	return;
++}
++
++static struct attribute_spec randomize_layout_attr = {
++	.name		= "randomize_layout",
++	// related to args
++	.min_length	= 0,
++	.max_length	= 0,
++	.decl_required	= false,
++	// need type declaration
++	.type_required	= true,
++	.function_type_required = false,
++	.handler		= handle_randomize_layout_attr,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity  = true
++#endif
++};
++
++static struct attribute_spec no_randomize_layout_attr = {
++	.name		= "no_randomize_layout",
++	// related to args
++	.min_length	= 0,
++	.max_length	= 0,
++	.decl_required	= false,
++	// need type declaration
++	.type_required	= true,
++	.function_type_required = false,
++	.handler		= handle_randomize_layout_attr,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity  = true
++#endif
++};
++
++static struct attribute_spec randomize_considered_attr = {
++	.name		= "randomize_considered",
++	// related to args
++	.min_length	= 0,
++	.max_length	= 0,
++	.decl_required	= false,
++	// need type declaration
++	.type_required	= true,
++	.function_type_required = false,
++	.handler		= handle_randomize_considered_attr,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity  = false
++#endif
++};
++
++static struct attribute_spec randomize_performed_attr = {
++	.name		= "randomize_performed",
++	// related to args
++	.min_length	= 0,
++	.max_length	= 0,
++	.decl_required	= false,
++	// need type declaration
++	.type_required	= true,
++	.function_type_required = false,
++	.handler		= handle_randomize_performed_attr,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity  = false
++#endif
++};
++
++static void register_attributes(void *event_data, void *data)
++{
++	register_attribute(&randomize_layout_attr);
++	register_attribute(&no_randomize_layout_attr);
++	register_attribute(&randomize_considered_attr);
++	register_attribute(&randomize_performed_attr);
++}
++
++static void check_bad_casts_in_constructor(tree var, tree init)
++{
++	unsigned HOST_WIDE_INT idx;
++	tree field, val;
++	tree field_type, val_type;
++
++	FOR_EACH_CONSTRUCTOR_ELT(CONSTRUCTOR_ELTS(init), idx, field, val) {
++		if (TREE_CODE(val) == CONSTRUCTOR) {
++			check_bad_casts_in_constructor(var, val);
++			continue;
++		}
++
++		/* pipacs' plugin creates franken-arrays that differ from those produced by
++		   normal code which all have valid 'field' trees. work around this */
++		if (field == NULL_TREE)
++			continue;
++		field_type = TREE_TYPE(field);
++		val_type = TREE_TYPE(val);
++
++		if (TREE_CODE(field_type) != POINTER_TYPE || TREE_CODE(val_type) != POINTER_TYPE)
++			continue;
++
++		if (field_type == val_type)
++			continue;
++
++		field_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(field_type))));
++		val_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(val_type))));
++
++		if (field_type == void_type_node)
++			continue;
++		if (field_type == val_type)
++			continue;
++		if (TREE_CODE(val_type) != RECORD_TYPE)
++			continue;
++
++		if (!lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(val_type)))
++			continue;
++		inform(DECL_SOURCE_LOCATION(var), "found mismatched struct pointer types: %qT and %qT\n", TYPE_MAIN_VARIANT(field_type), TYPE_MAIN_VARIANT(val_type));
++	}
++}
++
++/* derived from the constify plugin */
++static void check_global_variables(void *event_data, void *data)
++{
++	struct varpool_node *node;
++	tree init;
++
++	FOR_EACH_VARIABLE(node) {
++		tree var = NODE_DECL(node);
++		init = DECL_INITIAL(var);
++		if (init == NULL_TREE)
++			continue;
++
++		if (TREE_CODE(init) != CONSTRUCTOR)
++			continue;
++
++		check_bad_casts_in_constructor(var, init);
++	}
++}
++
++static bool dominated_by_is_err(const_tree rhs, basic_block bb)
++{
++	basic_block dom;
++	gimple dom_stmt;
++	gimple call_stmt;
++	const_tree dom_lhs;
++	const_tree poss_is_err_cond;
++	const_tree poss_is_err_func;
++	const_tree is_err_arg;
++
++	dom = get_immediate_dominator(CDI_DOMINATORS, bb);
++	if (!dom)
++		return false;
++
++	dom_stmt = last_stmt(dom);
++	if (!dom_stmt)
++		return false;
++
++	if (gimple_code(dom_stmt) != GIMPLE_COND)
++		return false;
++
++	if (gimple_cond_code(dom_stmt) != NE_EXPR)
++		return false;
++
++	if (!integer_zerop(gimple_cond_rhs(dom_stmt)))
++		return false;
++
++	poss_is_err_cond = gimple_cond_lhs(dom_stmt);
++
++	if (TREE_CODE(poss_is_err_cond) != SSA_NAME)
++		return false;
++
++	call_stmt = SSA_NAME_DEF_STMT(poss_is_err_cond);
++
++	if (gimple_code(call_stmt) != GIMPLE_CALL)
++		return false;
++
++	dom_lhs = gimple_get_lhs(call_stmt);
++	poss_is_err_func = gimple_call_fndecl(call_stmt);
++	if (!poss_is_err_func)
++		return false;
++	if (dom_lhs != poss_is_err_cond)
++		return false;
++	if (strcmp(DECL_NAME_POINTER(poss_is_err_func), "IS_ERR"))
++		return false;
++
++	is_err_arg = gimple_call_arg(call_stmt, 0);
++	if (!is_err_arg)
++		return false;
++
++	if (is_err_arg != rhs)
++		return false;
++
++	return true;
++}
++
++static void handle_local_var_initializers(void)
++{
++	tree var;
++	unsigned int i;
++
++	FOR_EACH_LOCAL_DECL(cfun, i, var) {
++		tree init = DECL_INITIAL(var);
++		if (!init)
++			continue;
++		if (TREE_CODE(init) != CONSTRUCTOR)
++			continue;
++		check_bad_casts_in_constructor(var, init);
++	}
++}
++
++/*
++ * iterate over all statements to find "bad" casts:
++ * those where the address of the start of a structure is cast
++ * to a pointer of a structure of a different type, or a
++ * structure pointer type is cast to a different structure pointer type
++ */
++static unsigned int find_bad_casts(void)
++{
++	basic_block bb;
++
++	handle_local_var_initializers();
++
++	FOR_ALL_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			gimple stmt;
++			const_tree lhs;
++			const_tree lhs_type;
++			const_tree rhs1;
++			const_tree rhs_type;
++			const_tree ptr_lhs_type;
++			const_tree ptr_rhs_type;
++			const_tree op0;
++			const_tree op0_type;
++			enum tree_code rhs_code;
++
++			stmt = gsi_stmt(gsi);
++
++#ifdef __DEBUG_PLUGIN
++#ifdef __DEBUG_VERBOSE
++			debug_gimple_stmt(stmt);
++			debug_tree(gimple_get_lhs(stmt));
++#endif
++#endif
++
++			if (gimple_code(stmt) != GIMPLE_ASSIGN)
++				continue;
++
++#ifdef __DEBUG_PLUGIN
++#ifdef __DEBUG_VERBOSE
++			debug_tree(gimple_assign_rhs1(stmt));
++#endif
++#endif
++
++			rhs_code = gimple_assign_rhs_code(stmt);
++
++			if (rhs_code != ADDR_EXPR && rhs_code != SSA_NAME)
++				continue;
++
++			lhs = gimple_get_lhs(stmt);
++			lhs_type = TREE_TYPE(lhs);
++			rhs1 = gimple_assign_rhs1(stmt);
++			rhs_type = TREE_TYPE(rhs1);
++
++			if (TREE_CODE(rhs_type) != POINTER_TYPE ||
++			    TREE_CODE(lhs_type) != POINTER_TYPE)
++				continue;
++
++			ptr_lhs_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(lhs_type))));
++			ptr_rhs_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(rhs_type))));
++
++			if (ptr_rhs_type == void_type_node)
++				continue;
++
++			if (ptr_lhs_type == void_type_node)
++				continue;
++
++			if (dominated_by_is_err(rhs1, bb))
++				continue;
++
++			if (TREE_CODE(ptr_rhs_type) != RECORD_TYPE) {
++#ifndef __DEBUG_PLUGIN
++				if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(ptr_lhs_type)))
++#endif
++				inform(gimple_location(stmt), "found mismatched struct pointer types: %qT and %qT\n", ptr_lhs_type, ptr_rhs_type);
++				continue;
++			}
++
++			if (rhs_code == SSA_NAME && ptr_lhs_type == ptr_rhs_type)
++				continue;
++
++			if (rhs_code == ADDR_EXPR) {
++				op0 = TREE_OPERAND(rhs1, 0);
++
++				if (op0 == NULL_TREE)
++					continue;
++
++				if (TREE_CODE(op0) != VAR_DECL)
++					continue;
++
++				op0_type = TYPE_MAIN_VARIANT(strip_array_types(TYPE_MAIN_VARIANT(TREE_TYPE(op0))));
++				if (op0_type == ptr_lhs_type)
++					continue;
++
++#ifndef __DEBUG_PLUGIN
++				if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(op0_type)))
++#endif
++				inform(gimple_location(stmt), "found mismatched struct pointer types: %qT and %qT\n", ptr_lhs_type, op0_type);
++			} else {
++				const_tree ssa_name_var = SSA_NAME_VAR(rhs1);
++				/* skip bogus type casts introduced by container_of */
++				if (ssa_name_var != NULL_TREE && DECL_NAME(ssa_name_var) && 
++				    !strcmp((const char *)DECL_NAME_POINTER(ssa_name_var), "__mptr"))
++					continue;
++#ifndef __DEBUG_PLUGIN
++				if (lookup_attribute("randomize_performed", TYPE_ATTRIBUTES(ptr_rhs_type)))
++#endif
++				inform(gimple_location(stmt), "found mismatched struct pointer types: %qT and %qT\n", ptr_lhs_type, ptr_rhs_type);
++			}
++
++		}
++	}
++	return 0;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data randomize_layout_bad_cast_data = {
++#else
++static struct gimple_opt_pass randomize_layout_bad_cast = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "randomize_layout_bad_cast",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION >= 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= find_bad_casts,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= PROP_cfg,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_dump_func
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++class randomize_layout_bad_cast : public gimple_opt_pass {
++public:
++	randomize_layout_bad_cast() : gimple_opt_pass(randomize_layout_bad_cast_data, g) {}
++	unsigned int execute() { return find_bad_casts(); }
++};
++}
++#endif
++
++static struct opt_pass *make_randomize_layout_bad_cast(void)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	return new randomize_layout_bad_cast();
++#else
++	return &randomize_layout_bad_cast.pass;
++#endif
++}
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	int i;
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	bool enable = true;
++	int obtained_seed = 0;
++	struct register_pass_info randomize_layout_bad_cast_info;
++
++	randomize_layout_bad_cast_info.pass			= make_randomize_layout_bad_cast();
++	randomize_layout_bad_cast_info.reference_pass_name	= "ssa";
++	randomize_layout_bad_cast_info.ref_pass_instance_number	= 1;
++	randomize_layout_bad_cast_info.pos_op			= PASS_POS_INSERT_AFTER;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	if (strncmp(lang_hooks.name, "GNU C", 5) && !strncmp(lang_hooks.name, "GNU C+", 6)) {
++		inform(UNKNOWN_LOCATION, G_("%s supports C only, not %s"), plugin_name, lang_hooks.name);
++		enable = false;
++	}
++
++	for (i = 0; i < argc; ++i) {
++		if (!strcmp(argv[i].key, "disable")) {
++			enable = false;
++			continue;
++		}
++		if (!strcmp(argv[i].key, "performance-mode")) {
++			performance_mode = 1;
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++
++	if (strlen(randstruct_seed) != 64) {
++		error(G_("invalid seed value supplied for %s plugin"), plugin_name);
++		return 1;
++	}
++	obtained_seed = sscanf(randstruct_seed, "%016llx%016llx%016llx%016llx",
++		&shuffle_seed[0], &shuffle_seed[1], &shuffle_seed[2], &shuffle_seed[3]);
++	if (obtained_seed != 4) {
++		error(G_("Invalid seed supplied for %s plugin"), plugin_name);
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &randomize_layout_plugin_info);
++	if (enable) {
++		register_callback(plugin_name, PLUGIN_ALL_IPA_PASSES_START, check_global_variables, NULL);
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &randomize_layout_bad_cast_info);
++		register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
++		register_callback(plugin_name, PLUGIN_FINISH_DECL, randomize_layout_finish_decl, NULL);
++	}
++	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
++
++	return 0;
++}
+diff --git a/tools/gcc/size_overflow_plugin/.gitignore b/tools/gcc/size_overflow_plugin/.gitignore
+new file mode 100644
+index 0000000..92d3b0c
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/.gitignore
+@@ -0,0 +1,2 @@
++size_overflow_hash.h
++size_overflow_hash_aux.h
+diff --git a/tools/gcc/size_overflow_plugin/Makefile b/tools/gcc/size_overflow_plugin/Makefile
+new file mode 100644
+index 0000000..1ae2ed5
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/Makefile
+@@ -0,0 +1,20 @@
++$(HOSTLIBS)-$(CONFIG_PAX_SIZE_OVERFLOW) += size_overflow_plugin.so
++always := $($(HOSTLIBS)-y)
++
++size_overflow_plugin-objs := $(patsubst $(srctree)/$(src)/%.c,%.o,$(wildcard $(srctree)/$(src)/*.c))
++
++$(patsubst $(srctree)/$(src)/%.c,$(obj)/%.o,$(wildcard $(srctree)/$(src)/*.c)): $(objtree)/$(obj)/size_overflow_hash.h $(objtree)/$(obj)/size_overflow_hash_aux.h
++
++quiet_cmd_build_size_overflow_hash = GENHASH  $@
++      cmd_build_size_overflow_hash = \
++	$(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -s size_overflow_hash -d $< -o $@
++$(objtree)/$(obj)/size_overflow_hash.h: $(src)/size_overflow_hash.data FORCE
++	$(call if_changed,build_size_overflow_hash)
++
++quiet_cmd_build_size_overflow_hash_aux = GENHASH  $@
++      cmd_build_size_overflow_hash_aux = \
++	$(CONFIG_SHELL) $(srctree)/$(src)/generate_size_overflow_hash.sh -s size_overflow_hash_aux -d $< -o $@
++$(objtree)/$(obj)/size_overflow_hash_aux.h: $(src)/size_overflow_hash_aux.data FORCE
++	$(call if_changed,build_size_overflow_hash_aux)
++
++targets += size_overflow_hash.h size_overflow_hash_aux.h
+diff --git a/tools/gcc/size_overflow_plugin/generate_size_overflow_hash.sh b/tools/gcc/size_overflow_plugin/generate_size_overflow_hash.sh
+new file mode 100755
+index 0000000..12b1e3b
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/generate_size_overflow_hash.sh
+@@ -0,0 +1,102 @@
++#!/bin/bash
++
++# This script generates the hash table (size_overflow_hash.h) for the size_overflow gcc plugin (size_overflow_plugin.c).
++
++header1="size_overflow_hash.h"
++database="size_overflow_hash.data"
++n=65536
++hashtable_name="size_overflow_hash"
++
++usage() {
++cat <<EOF
++usage: $0 options
++OPTIONS:
++        -h|--help               help
++	-o			header file
++	-d			database file
++	-n			hash array size
++	-s			name of the hash table
++EOF
++    return 0
++}
++
++while true
++do
++    case "$1" in
++    -h|--help)	usage && exit 0;;
++    -n)		n=$2; shift 2;;
++    -o)		header1="$2"; shift 2;;
++    -d)		database="$2"; shift 2;;
++    -s)		hashtable_name="$2"; shift 2;;
++    --)		shift 1; break ;;
++     *)		break ;;
++    esac
++done
++
++create_defines() {
++	for i in `seq 0 31`
++	do
++		echo -e "#define PARAM"$i" (1U << "$i")" >> "$header1"
++	done
++	echo >> "$header1"
++}
++
++create_structs() {
++	rm -f "$header1"
++
++	create_defines
++
++	cat "$database" | while read data
++	do
++		data_array=($data)
++		struct_hash_name="${data_array[0]}"
++		funcn="${data_array[1]}"
++		params="${data_array[2]}"
++		next="${data_array[4]}"
++
++		echo "const struct size_overflow_hash $struct_hash_name = {" >> "$header1"
++
++		echo -e "\t.next\t= $next,\n\t.name\t= \"$funcn\"," >> "$header1"
++		echo -en "\t.param\t= " >> "$header1"
++		line=
++		for param_num in ${params//-/ };
++		do
++			line="${line}PARAM"$param_num"|"
++		done
++
++		echo -e "${line%?},\n};\n" >> "$header1"
++	done
++}
++
++create_headers() {
++	echo "const struct size_overflow_hash * const $hashtable_name[$n] = {" >> "$header1"
++}
++
++create_array_elements() {
++	index=0
++	grep -v "nohasharray" $database | sort -n -k 4 | while read data
++	do
++		data_array=($data)
++		i="${data_array[3]}"
++		hash="${data_array[0]}"
++		while [[ $index -lt $i ]]
++		do
++			echo -e "\t["$index"]\t= NULL," >> "$header1"
++			index=$(($index + 1))
++		done
++		index=$(($index + 1))
++		echo -e "\t["$i"]\t= &"$hash"," >> "$header1"
++	done
++	echo '};' >> $header1
++}
++
++size_overflow_plugin_dir=`dirname $header1`
++if [ "$size_overflow_plugin_dir" != '.' ]; then
++	mkdir -p "$size_overflow_plugin_dir" 2> /dev/null
++fi
++
++create_structs
++create_headers
++create_array_elements
++
++exit 0
+diff --git a/tools/gcc/size_overflow_plugin/insert_size_overflow_asm.c b/tools/gcc/size_overflow_plugin/insert_size_overflow_asm.c
+new file mode 100644
+index 0000000..c43901f
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/insert_size_overflow_asm.c
+@@ -0,0 +1,748 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++static void search_size_overflow_attribute(struct pointer_set_t *visited, tree lhs);
++static enum mark search_intentional(struct pointer_set_t *visited, const_tree lhs);
++
++// data for the size_overflow asm stmt
++struct asm_data {
++	gimple def_stmt;
++	tree input;
++	tree output;
++};
++
++#if BUILDING_GCC_VERSION <= 4007
++static VEC(tree, gc) *create_asm_io_list(tree string, tree io)
++#else
++static vec<tree, va_gc> *create_asm_io_list(tree string, tree io)
++#endif
++{
++	tree list;
++#if BUILDING_GCC_VERSION <= 4007
++	VEC(tree, gc) *vec_list = NULL;
++#else
++	vec<tree, va_gc> *vec_list = NULL;
++#endif
++
++	list = build_tree_list(NULL_TREE, string);
++	list = chainon(NULL_TREE, build_tree_list(list, io));
++#if BUILDING_GCC_VERSION <= 4007
++	VEC_safe_push(tree, gc, vec_list, list);
++#else
++	vec_safe_push(vec_list, list);
++#endif
++	return vec_list;
++}
++
++static void create_asm_stmt(const char *str, tree str_input, tree str_output, struct asm_data *asm_data)
++{
++	gimple asm_stmt;
++	gimple_stmt_iterator gsi;
++#if BUILDING_GCC_VERSION <= 4007
++	VEC(tree, gc) *input, *output = NULL;
++#else
++	vec<tree, va_gc> *input, *output = NULL;
++#endif
++
++	input = create_asm_io_list(str_input, asm_data->input);
++
++	if (asm_data->output)
++		output = create_asm_io_list(str_output, asm_data->output);
++
++	asm_stmt = gimple_build_asm_vec(str, input, output, NULL, NULL);
++	gsi = gsi_for_stmt(asm_data->def_stmt);
++	gsi_insert_after(&gsi, asm_stmt, GSI_NEW_STMT);
++
++	if (asm_data->output)
++		SSA_NAME_DEF_STMT(asm_data->output) = asm_stmt;
++}
++
++static void replace_call_lhs(const struct asm_data *asm_data)
++{
++	gimple_set_lhs(asm_data->def_stmt, asm_data->input);
++	update_stmt(asm_data->def_stmt);
++	SSA_NAME_DEF_STMT(asm_data->input) = asm_data->def_stmt;
++}
++
++static enum mark search_intentional_phi(struct pointer_set_t *visited, const_tree result)
++{
++	enum mark cur_fndecl_attr;
++	gimple phi = get_def_stmt(result);
++	unsigned int i, n = gimple_phi_num_args(phi);
++
++	pointer_set_insert(visited, phi);
++	for (i = 0; i < n; i++) {
++		tree arg = gimple_phi_arg_def(phi, i);
++
++		cur_fndecl_attr = search_intentional(visited, arg);
++		if (cur_fndecl_attr != MARK_NO)
++			return cur_fndecl_attr;
++	}
++	return MARK_NO;
++}
++
++static enum mark search_intentional_binary(struct pointer_set_t *visited, const_tree lhs)
++{
++	enum mark cur_fndecl_attr;
++	const_tree rhs1, rhs2;
++	gimple def_stmt = get_def_stmt(lhs);
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs2 = gimple_assign_rhs2(def_stmt);
++
++	cur_fndecl_attr = search_intentional(visited, rhs1);
++	if (cur_fndecl_attr != MARK_NO)
++		return cur_fndecl_attr;
++	return search_intentional(visited, rhs2);
++}
++
++// Look up the intentional_overflow attribute on the caller and the callee functions.
++static enum mark search_intentional(struct pointer_set_t *visited, const_tree lhs)
++{
++	const_gimple def_stmt;
++
++	if (TREE_CODE(lhs) != SSA_NAME)
++		return get_intentional_attr_type(lhs);
++
++	def_stmt = get_def_stmt(lhs);
++	if (!def_stmt)
++		return MARK_NO;
++
++	if (pointer_set_contains(visited, def_stmt))
++		return MARK_NO;
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_NOP:
++		return search_intentional(visited, SSA_NAME_VAR(lhs));
++	case GIMPLE_ASM:
++		if (is_size_overflow_intentional_asm_turn_off(def_stmt))
++			return MARK_TURN_OFF;
++		return MARK_NO;
++	case GIMPLE_CALL:
++		return MARK_NO;
++	case GIMPLE_PHI:
++		return search_intentional_phi(visited, lhs);
++	case GIMPLE_ASSIGN:
++		switch (gimple_num_ops(def_stmt)) {
++		case 2:
++			return search_intentional(visited, gimple_assign_rhs1(def_stmt));
++		case 3:
++			return search_intentional_binary(visited, lhs);
++		}
++	case GIMPLE_RETURN:
++		return MARK_NO;
++	default:
++		debug_gimple_stmt((gimple)def_stmt);
++		error("%s: unknown gimple code", __func__);
++		gcc_unreachable();
++	}
++}
++
++// Check the intentional_overflow attribute and create the asm comment string for the size_overflow asm stmt.
++static enum mark check_intentional_attribute_gimple(const_tree arg, const_gimple stmt, unsigned int argnum)
++{
++	const_tree fndecl;
++	struct pointer_set_t *visited;
++	enum mark cur_fndecl_attr, decl_attr = MARK_NO;
++
++	fndecl = get_interesting_orig_fndecl(stmt, argnum);
++	if (is_end_intentional_intentional_attr(fndecl, argnum))
++		decl_attr = MARK_NOT_INTENTIONAL;
++	else if (is_yes_intentional_attr(fndecl, argnum))
++		decl_attr = MARK_YES;
++	else if (is_turn_off_intentional_attr(fndecl) || is_turn_off_intentional_attr(DECL_ORIGIN(current_function_decl))) {
++		return MARK_TURN_OFF;
++	}
++
++	visited = pointer_set_create();
++	cur_fndecl_attr = search_intentional(visited, arg);
++	pointer_set_destroy(visited);
++
++	switch (cur_fndecl_attr) {
++	case MARK_NO:
++	case MARK_TURN_OFF:
++		return cur_fndecl_attr;
++	default:
++		print_missing_intentional(decl_attr, cur_fndecl_attr, fndecl, argnum);
++		return MARK_YES;
++	}
++}
++
++static void check_missing_size_overflow_attribute(tree var)
++{
++	tree orig_fndecl;
++	unsigned int num;
++
++	if (is_a_return_check(var))
++		orig_fndecl = DECL_ORIGIN(var);
++	else
++		orig_fndecl = DECL_ORIGIN(current_function_decl);
++
++	num = get_function_num(var, orig_fndecl);
++	if (num == CANNOT_FIND_ARG)
++		return;
++
++	is_missing_function(orig_fndecl, num);
++}
++
++static void search_size_overflow_attribute_phi(struct pointer_set_t *visited, const_tree result)
++{
++	gimple phi = get_def_stmt(result);
++	unsigned int i, n = gimple_phi_num_args(phi);
++
++	pointer_set_insert(visited, phi);
++	for (i = 0; i < n; i++) {
++		tree arg = gimple_phi_arg_def(phi, i);
++
++		search_size_overflow_attribute(visited, arg);
++	}
++}
++
++static void search_size_overflow_attribute_binary(struct pointer_set_t *visited, const_tree lhs)
++{
++	const_gimple def_stmt = get_def_stmt(lhs);
++	tree rhs1, rhs2;
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs2 = gimple_assign_rhs2(def_stmt);
++
++	search_size_overflow_attribute(visited, rhs1);
++	search_size_overflow_attribute(visited, rhs2);
++}
++
++static void search_size_overflow_attribute(struct pointer_set_t *visited, tree lhs)
++{
++	const_gimple def_stmt;
++
++	if (TREE_CODE(lhs) == PARM_DECL) {
++		check_missing_size_overflow_attribute(lhs);
++		return;
++	}
++
++	def_stmt = get_def_stmt(lhs);
++	if (!def_stmt)
++		return;
++
++	if (pointer_set_insert(visited, def_stmt))
++		return;
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_NOP:
++		return search_size_overflow_attribute(visited, SSA_NAME_VAR(lhs));
++	case GIMPLE_ASM:
++		return;
++	case GIMPLE_CALL: {
++		tree fndecl = gimple_call_fndecl(def_stmt);
++
++		if (fndecl == NULL_TREE)
++			return;
++		check_missing_size_overflow_attribute(fndecl);
++		return;
++	}
++	case GIMPLE_PHI:
++		return search_size_overflow_attribute_phi(visited, lhs);
++	case GIMPLE_ASSIGN:
++		switch (gimple_num_ops(def_stmt)) {
++		case 2:
++			return search_size_overflow_attribute(visited, gimple_assign_rhs1(def_stmt));
++		case 3:
++			return search_size_overflow_attribute_binary(visited, lhs);
++		}
++	default:
++		debug_gimple_stmt((gimple)def_stmt);
++		error("%s: unknown gimple code", __func__);
++		gcc_unreachable();
++	}
++}
++
++// Search missing entries in the hash table (invoked from the gimple pass)
++static void search_missing_size_overflow_attribute_gimple(const_gimple stmt, unsigned int num)
++{
++	tree fndecl = NULL_TREE;
++	tree lhs;
++	struct pointer_set_t *visited;
++
++	if (is_turn_off_intentional_attr(DECL_ORIGIN(current_function_decl)))
++		return;
++
++	if (num == 0) {
++		gcc_assert(gimple_code(stmt) == GIMPLE_RETURN);
++		lhs = gimple_return_retval(stmt);
++	} else {
++		gcc_assert(is_gimple_call(stmt));
++		lhs = gimple_call_arg(stmt, num - 1);
++		fndecl = gimple_call_fndecl(stmt);
++	}
++
++	if (fndecl != NULL_TREE && is_turn_off_intentional_attr(DECL_ORIGIN(fndecl)))
++		return;
++
++	visited = pointer_set_create();
++	search_size_overflow_attribute(visited, lhs);
++	pointer_set_destroy(visited);
++}
++
++static void create_output_from_phi(gimple stmt, unsigned int argnum, struct asm_data *asm_data)
++{
++	gimple_stmt_iterator gsi;
++	gimple assign;
++
++	assign = gimple_build_assign(asm_data->input, asm_data->output);
++	gsi = gsi_for_stmt(stmt);
++	gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
++	asm_data->def_stmt = assign;
++
++	asm_data->output = create_new_var(TREE_TYPE(asm_data->output));
++	asm_data->output = make_ssa_name(asm_data->output, stmt);
++	if (gimple_code(stmt) == GIMPLE_RETURN)
++		gimple_return_set_retval(stmt, asm_data->output);
++	else
++		gimple_call_set_arg(stmt, argnum - 1, asm_data->output);
++	update_stmt(stmt);
++}
++
++static char *create_asm_comment(unsigned int argnum, const_gimple stmt , const char *mark_str)
++{
++	const char *fn_name;
++	char *asm_comment;
++	unsigned int len;
++
++	if (argnum == 0)
++		fn_name = DECL_NAME_POINTER(current_function_decl);
++	else
++		fn_name = DECL_NAME_POINTER(gimple_call_fndecl(stmt));
++
++	len = asprintf(&asm_comment, "%s %s %u", mark_str, fn_name, argnum);
++	gcc_assert(len > 0);
++
++	return asm_comment;
++}
++
++static const char *convert_mark_to_str(enum mark mark)
++{
++	switch (mark) {
++	case MARK_NO:
++		return OK_ASM_STR;
++	case MARK_YES:
++	case MARK_NOT_INTENTIONAL:
++		return YES_ASM_STR;
++	case MARK_TURN_OFF:
++		return TURN_OFF_ASM_STR;
++	}
++
++	gcc_unreachable();
++}
++
++/* Create the input of the size_overflow asm stmt.
++ * When the arg of the callee function is a parm_decl it creates this kind of size_overflow asm stmt:
++ *   __asm__("# size_overflow MARK_YES" :  : "rm" size_1(D));
++ * The input field in asm_data will be empty if there is no need for further size_overflow asm stmt insertion.
++ * otherwise create the input (for a phi stmt the output too) of the asm stmt.
++ */
++static void create_asm_input(gimple stmt, unsigned int argnum, struct asm_data *asm_data)
++{
++	if (!asm_data->def_stmt) {
++		asm_data->input = NULL_TREE;
++		return;
++	}
++
++	asm_data->input = create_new_var(TREE_TYPE(asm_data->output));
++	asm_data->input = make_ssa_name(asm_data->input, asm_data->def_stmt);
++
++	switch (gimple_code(asm_data->def_stmt)) {
++	case GIMPLE_ASSIGN:
++	case GIMPLE_CALL:
++		replace_call_lhs(asm_data);
++		break;
++	case GIMPLE_PHI:
++		create_output_from_phi(stmt, argnum, asm_data);
++		break;
++	case GIMPLE_NOP: {
++		enum mark mark;
++		const char *mark_str;
++		char *asm_comment;
++
++		mark = check_intentional_attribute_gimple(asm_data->output, stmt, argnum);
++
++		asm_data->input = asm_data->output;
++		asm_data->output = NULL;
++		asm_data->def_stmt = stmt;
++
++		mark_str = convert_mark_to_str(mark);
++		asm_comment = create_asm_comment(argnum, stmt, mark_str);
++
++		create_asm_stmt(asm_comment, build_string(3, "rm"), NULL, asm_data);
++		free(asm_comment);
++		asm_data->input = NULL_TREE;
++		break;
++	}
++	case GIMPLE_ASM:
++		if (is_size_overflow_asm(asm_data->def_stmt)) {
++			asm_data->input = NULL_TREE;
++			break;
++		}
++	default:
++		debug_gimple_stmt(asm_data->def_stmt);
++		gcc_unreachable();
++	}
++}
++
++/* This is the gimple part of searching for a missing size_overflow attribute. If the intentional_overflow attribute type
++ * is of the right kind create the appropriate size_overflow asm stmts:
++ *   __asm__("# size_overflow" : =rm" D.3344_8 : "0" cicus.4_16);
++ *   __asm__("# size_overflow MARK_YES" :  : "rm" size_1(D));
++ */
++static void create_size_overflow_asm(gimple stmt, tree output_node, unsigned int argnum)
++{
++	struct asm_data asm_data;
++	const char *mark_str;
++	char *asm_comment;
++	enum mark mark;
++
++	if (is_gimple_constant(output_node))
++		return;
++
++	asm_data.output = output_node;
++	mark = check_intentional_attribute_gimple(asm_data.output, stmt, argnum);
++	if (mark != MARK_TURN_OFF)
++		search_missing_size_overflow_attribute_gimple(stmt, argnum);
++
++	asm_data.def_stmt = get_def_stmt(asm_data.output);
++	if (is_size_overflow_intentional_asm_turn_off(asm_data.def_stmt))
++		return;
++
++	create_asm_input(stmt, argnum, &asm_data);
++	if (asm_data.input == NULL_TREE)
++		return;
++
++	mark_str = convert_mark_to_str(mark);
++	asm_comment = create_asm_comment(argnum, stmt, mark_str);
++	create_asm_stmt(asm_comment, build_string(2, "0"), build_string(4, "=rm"), &asm_data);
++	free(asm_comment);
++}
++
++// Insert an asm stmt with "MARK_TURN_OFF", "MARK_YES" or "MARK_NOT_INTENTIONAL".
++static bool create_mark_asm(gimple stmt, enum mark mark)
++{
++	struct asm_data asm_data;
++	const char *asm_str;
++
++	switch (mark) {
++	case MARK_TURN_OFF:
++		asm_str = TURN_OFF_ASM_STR;
++		break;
++	case MARK_NOT_INTENTIONAL:
++	case MARK_YES:
++		asm_str = YES_ASM_STR;
++		break;
++	default:
++		gcc_unreachable();
++	}
++
++	asm_data.def_stmt = stmt;
++	asm_data.output = gimple_call_lhs(stmt);
++
++	if (asm_data.output == NULL_TREE) {
++		asm_data.input = gimple_call_arg(stmt, 0);
++		if (is_gimple_constant(asm_data.input))
++			return false;
++		asm_data.output = NULL;
++		create_asm_stmt(asm_str, build_string(3, "rm"), NULL, &asm_data);
++		return true;
++	}
++
++	create_asm_input(stmt, 0, &asm_data);
++	gcc_assert(asm_data.input != NULL_TREE);
++
++	create_asm_stmt(asm_str, build_string(2, "0"), build_string(4, "=rm"), &asm_data);
++	return true;
++}
++
++static void walk_use_def_ptr(struct pointer_set_t *visited, const_tree lhs)
++{
++	gimple def_stmt;
++
++	def_stmt = get_def_stmt(lhs);
++	if (!def_stmt)
++		return;
++
++	if (pointer_set_insert(visited, def_stmt))
++		return;
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_NOP:
++	case GIMPLE_ASM:
++	case GIMPLE_CALL:
++		break;
++	case GIMPLE_PHI: {
++		unsigned int i, n = gimple_phi_num_args(def_stmt);
++
++		pointer_set_insert(visited, def_stmt);
++
++		for (i = 0; i < n; i++) {
++			tree arg = gimple_phi_arg_def(def_stmt, i);
++
++			walk_use_def_ptr(visited, arg);
++		}
++	}
++	case GIMPLE_ASSIGN:
++		switch (gimple_num_ops(def_stmt)) {
++		case 2:
++			walk_use_def_ptr(visited, gimple_assign_rhs1(def_stmt));
++			return;
++		case 3:
++			walk_use_def_ptr(visited, gimple_assign_rhs1(def_stmt));
++			walk_use_def_ptr(visited, gimple_assign_rhs2(def_stmt));
++			return;
++		default:
++			return;
++		}
++	default:
++		debug_gimple_stmt((gimple)def_stmt);
++		error("%s: unknown gimple code", __func__);
++		gcc_unreachable();
++	}
++}
++
++// Look for a ptr - ptr expression (e.g., cpuset_common_file_read() s - page)
++static void insert_mark_not_intentional_asm_at_ptr(const_tree arg)
++{
++	struct pointer_set_t *visited;
++
++	visited = pointer_set_create();
++	walk_use_def_ptr(visited, arg);
++	pointer_set_destroy(visited);
++}
++
++// Determine the return value and insert the asm stmt to mark the return stmt.
++static void insert_asm_ret(gimple stmt)
++{
++	tree ret;
++
++	ret = gimple_return_retval(stmt);
++	create_size_overflow_asm(stmt, ret, 0);
++}
++
++// Determine the correct arg index and arg and insert the asm stmt to mark the stmt.
++static void insert_asm_arg(gimple stmt, unsigned int orig_argnum)
++{
++	tree arg;
++	unsigned int argnum;
++
++	argnum = get_correct_arg_count(orig_argnum, gimple_call_fndecl(stmt));
++	gcc_assert(argnum != 0);
++	if (argnum == CANNOT_FIND_ARG)
++		return;
++
++	arg = gimple_call_arg(stmt, argnum - 1);
++	gcc_assert(arg != NULL_TREE);
++
++	// skip all ptr - ptr expressions
++	insert_mark_not_intentional_asm_at_ptr(arg);
++
++	create_size_overflow_asm(stmt, arg, argnum);
++}
++
++// If a function arg or the return value is marked by the size_overflow attribute then set its index in the array.
++static void set_argnum_attribute(const_tree attr, bool *argnums)
++{
++	unsigned int argnum;
++	tree attr_value;
++
++	for (attr_value = TREE_VALUE(attr); attr_value; attr_value = TREE_CHAIN(attr_value)) {
++		argnum = TREE_INT_CST_LOW(TREE_VALUE(attr_value));
++		argnums[argnum] = true;
++	}
++}
++
++// If a function arg or the return value is in the hash table then set its index in the array.
++static void set_argnum_hash(tree fndecl, bool *argnums)
++{
++	unsigned int num;
++	const struct size_overflow_hash *hash;
++
++	hash = get_function_hash(DECL_ORIGIN(fndecl));
++	if (!hash)
++		return;
++
++	for (num = 0; num <= MAX_PARAM; num++) {
++		if (!(hash->param & (1U << num)))
++			continue;
++
++		argnums[num] = true;
++	}
++}
++
++static bool is_all_the_argnums_empty(bool *argnums)
++{
++	unsigned int i;
++
++	for (i = 0; i <= MAX_PARAM; i++)
++		if (argnums[i])
++			return false;
++	return true;
++}
++
++// Check whether the arguments or the return value of the function are in the hash table or are marked by the size_overflow attribute.
++static void search_interesting_args(tree fndecl, bool *argnums)
++{
++	const_tree attr;
++
++	set_argnum_hash(fndecl, argnums);
++	if (!is_all_the_argnums_empty(argnums))
++		return;
++
++	attr = lookup_attribute("size_overflow", DECL_ATTRIBUTES(fndecl));
++	if (attr && TREE_VALUE(attr))
++		set_argnum_attribute(attr, argnums);
++}
++
++/*
++ * Look up the intentional_overflow attribute that turns off ipa based duplication
++ * on the callee function.
++ */
++static bool is_mark_turn_off_attribute(gimple stmt)
++{
++	enum mark mark;
++	const_tree fndecl = gimple_call_fndecl(stmt);
++
++	mark = get_intentional_attr_type(DECL_ORIGIN(fndecl));
++	if (mark == MARK_TURN_OFF)
++		return true;
++	return false;
++}
++
++// If the argument(s) of the callee function is/are in the hash table or are marked by an attribute then mark the call stmt with an asm stmt
++static void handle_interesting_function(gimple stmt)
++{
++	unsigned int argnum;
++	tree fndecl;
++	bool orig_argnums[MAX_PARAM + 1] = {false};
++
++	if (gimple_call_num_args(stmt) == 0)
++		return;
++	fndecl = gimple_call_fndecl(stmt);
++	if (fndecl == NULL_TREE)
++		return;
++	fndecl = DECL_ORIGIN(fndecl);
++
++	if (is_mark_turn_off_attribute(stmt)) {
++		create_mark_asm(stmt, MARK_TURN_OFF);
++		return;
++	}
++
++	search_interesting_args(fndecl, orig_argnums);
++
++	for (argnum = 1; argnum < MAX_PARAM; argnum++)
++		if (orig_argnums[argnum])
++			insert_asm_arg(stmt, argnum);
++}
++
++// If the return value of the caller function is in hash table (its index is 0) then mark the return stmt with an asm stmt
++static void handle_interesting_ret(gimple stmt)
++{
++	bool orig_argnums[MAX_PARAM + 1] = {false};
++
++	search_interesting_args(current_function_decl, orig_argnums);
++
++	if (orig_argnums[0])
++		insert_asm_ret(stmt);
++}
++
++// Iterate over all the stmts and search for call and return stmts and mark them if they're in the hash table
++static unsigned int search_interesting_functions(void)
++{
++	basic_block bb;
++
++	FOR_ALL_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			gimple stmt = gsi_stmt(gsi);
++
++			if (is_size_overflow_asm(stmt))
++				continue;
++
++			if (is_gimple_call(stmt))
++				handle_interesting_function(stmt);
++			else if (gimple_code(stmt) == GIMPLE_RETURN)
++				handle_interesting_ret(stmt);
++		}
++	}
++	return 0;
++}
++
++/*
++ * A lot of functions get inlined before the ipa passes so after the build_ssa gimple pass
++ * this pass inserts asm stmts to mark the interesting args
++ * that the ipa pass will detect and insert the size overflow checks for.
++ */
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data insert_size_overflow_asm_pass_data = {
++#else
++static struct gimple_opt_pass insert_size_overflow_asm_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "insert_size_overflow_asm",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= search_interesting_functions,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= PROP_cfg,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_dump_func | TODO_verify_ssa | TODO_verify_stmts | TODO_remove_unused_locals | TODO_update_ssa_no_phi | TODO_cleanup_cfg | TODO_ggc_collect | TODO_verify_flow
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++class insert_size_overflow_asm_pass : public gimple_opt_pass {
++public:
++	insert_size_overflow_asm_pass() : gimple_opt_pass(insert_size_overflow_asm_pass_data, g) {}
++	unsigned int execute() { return search_interesting_functions(); }
++};
++}
++#endif
++
++struct opt_pass *make_insert_size_overflow_asm_pass(void)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	return new insert_size_overflow_asm_pass();
++#else
++	return &insert_size_overflow_asm_pass.pass;
++#endif
++}
+diff --git a/tools/gcc/size_overflow_plugin/insert_size_overflow_check_core.c b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_core.c
+new file mode 100644
+index 0000000..73f0a12
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_core.c
+@@ -0,0 +1,943 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++#define MIN_CHECK true
++#define MAX_CHECK false
++
++static tree get_size_overflow_type(struct visited *visited, const_gimple stmt, const_tree node)
++{
++	const_tree type;
++	tree new_type;
++
++	gcc_assert(node != NULL_TREE);
++
++	type = TREE_TYPE(node);
++
++	if (pointer_set_contains(visited->my_stmts, stmt))
++		return TREE_TYPE(node);
++
++	switch (TYPE_MODE(type)) {
++	case QImode:
++		new_type = size_overflow_type_HI;
++		break;
++	case HImode:
++		new_type = size_overflow_type_SI;
++		break;
++	case SImode:
++		new_type = size_overflow_type_DI;
++		break;
++	case DImode:
++		if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
++			new_type = TYPE_UNSIGNED(type) ? unsigned_intDI_type_node : intDI_type_node;
++		else
++			new_type = size_overflow_type_TI;
++		break;
++	case TImode:
++		gcc_assert(!TYPE_UNSIGNED(type));
++		new_type = size_overflow_type_TI;
++		break;
++	default:
++		debug_tree((tree)node);
++		error("%s: unsupported gcc configuration (%qE).", __func__, current_function_decl);
++		gcc_unreachable();
++	}
++
++	if (TYPE_QUALS(type) != 0)
++		return build_qualified_type(new_type, TYPE_QUALS(type));
++	return new_type;
++}
++
++static tree get_lhs(const_gimple stmt)
++{
++	switch (gimple_code(stmt)) {
++	case GIMPLE_ASSIGN:
++	case GIMPLE_CALL:
++		return gimple_get_lhs(stmt);
++	case GIMPLE_PHI:
++		return gimple_phi_result(stmt);
++	default:
++		return NULL_TREE;
++	}
++}
++
++static tree cast_to_new_size_overflow_type(struct visited *visited, gimple stmt, tree rhs, tree size_overflow_type, bool before)
++{
++	gimple_stmt_iterator gsi;
++	tree lhs;
++	gimple new_stmt;
++
++	if (rhs == NULL_TREE)
++		return NULL_TREE;
++
++	gsi = gsi_for_stmt(stmt);
++	new_stmt = build_cast_stmt(visited, size_overflow_type, rhs, CREATE_NEW_VAR, &gsi, before, false);
++	pointer_set_insert(visited->my_stmts, new_stmt);
++
++	lhs = get_lhs(new_stmt);
++	gcc_assert(lhs != NULL_TREE);
++	return lhs;
++}
++
++tree create_assign(struct visited *visited, gimple oldstmt, tree rhs1, bool before)
++{
++	tree lhs, dst_type;
++	gimple_stmt_iterator gsi;
++
++	if (rhs1 == NULL_TREE) {
++		debug_gimple_stmt(oldstmt);
++		error("%s: rhs1 is NULL_TREE", __func__);
++		gcc_unreachable();
++	}
++
++	switch (gimple_code(oldstmt)) {
++	case GIMPLE_ASM:
++		lhs = rhs1;
++		break;
++	case GIMPLE_CALL:
++	case GIMPLE_ASSIGN:
++		lhs = gimple_get_lhs(oldstmt);
++		break;
++	default:
++		debug_gimple_stmt(oldstmt);
++		gcc_unreachable();
++	}
++
++	gsi = gsi_for_stmt(oldstmt);
++	pointer_set_insert(visited->stmts, oldstmt);
++	if (lookup_stmt_eh_lp(oldstmt) != 0) {
++		basic_block next_bb, cur_bb;
++		const_edge e;
++
++		gcc_assert(before == false);
++		gcc_assert(stmt_can_throw_internal(oldstmt));
++		gcc_assert(gimple_code(oldstmt) == GIMPLE_CALL);
++		gcc_assert(!gsi_end_p(gsi));
++
++		cur_bb = gimple_bb(oldstmt);
++		next_bb = cur_bb->next_bb;
++		e = find_edge(cur_bb, next_bb);
++		gcc_assert(e != NULL);
++		gcc_assert(e->flags & EDGE_FALLTHRU);
++
++		gsi = gsi_after_labels(next_bb);
++		gcc_assert(!gsi_end_p(gsi));
++
++		before = true;
++		oldstmt = gsi_stmt(gsi);
++	}
++
++	dst_type = get_size_overflow_type(visited, oldstmt, lhs);
++
++	if (is_gimple_constant(rhs1))
++		return cast_a_tree(dst_type, rhs1);
++	return cast_to_new_size_overflow_type(visited, oldstmt, rhs1, dst_type, before);
++}
++
++tree dup_assign(struct visited *visited, gimple oldstmt, const_tree node, tree rhs1, tree rhs2, tree __unused rhs3)
++{
++	gimple stmt;
++	gimple_stmt_iterator gsi;
++	tree size_overflow_type, new_var, lhs = gimple_assign_lhs(oldstmt);
++
++	if (pointer_set_contains(visited->my_stmts, oldstmt))
++		return lhs;
++
++	if (gimple_num_ops(oldstmt) != 4 && rhs1 == NULL_TREE) {
++		rhs1 = gimple_assign_rhs1(oldstmt);
++		rhs1 = create_assign(visited, oldstmt, rhs1, BEFORE_STMT);
++	}
++	if (gimple_num_ops(oldstmt) == 3 && rhs2 == NULL_TREE) {
++		rhs2 = gimple_assign_rhs2(oldstmt);
++		rhs2 = create_assign(visited, oldstmt, rhs2, BEFORE_STMT);
++	}
++
++	stmt = gimple_copy(oldstmt);
++	gimple_set_location(stmt, gimple_location(oldstmt));
++	pointer_set_insert(visited->my_stmts, stmt);
++
++	if (gimple_assign_rhs_code(oldstmt) == WIDEN_MULT_EXPR)
++		gimple_assign_set_rhs_code(stmt, MULT_EXPR);
++
++	size_overflow_type = get_size_overflow_type(visited, oldstmt, node);
++
++	new_var = create_new_var(size_overflow_type);
++	new_var = make_ssa_name(new_var, stmt);
++	gimple_assign_set_lhs(stmt, new_var);
++
++	if (rhs1 != NULL_TREE)
++		gimple_assign_set_rhs1(stmt, rhs1);
++
++	if (rhs2 != NULL_TREE)
++		gimple_assign_set_rhs2(stmt, rhs2);
++#if BUILDING_GCC_VERSION >= 4006
++	if (rhs3 != NULL_TREE)
++		gimple_assign_set_rhs3(stmt, rhs3);
++#endif
++	gimple_set_vuse(stmt, gimple_vuse(oldstmt));
++	gimple_set_vdef(stmt, gimple_vdef(oldstmt));
++
++	gsi = gsi_for_stmt(oldstmt);
++	gsi_insert_after(&gsi, stmt, GSI_SAME_STMT);
++	update_stmt(stmt);
++	pointer_set_insert(visited->stmts, oldstmt);
++	return gimple_assign_lhs(stmt);
++}
++
++static tree cast_parm_decl(struct visited *visited, tree phi_ssa_name, tree arg, tree size_overflow_type, basic_block bb)
++{
++	gimple assign;
++	gimple_stmt_iterator gsi;
++	basic_block first_bb;
++
++	gcc_assert(SSA_NAME_IS_DEFAULT_DEF(arg));
++
++	if (bb->index == 0) {
++		first_bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
++		gcc_assert(dom_info_available_p(CDI_DOMINATORS));
++		set_immediate_dominator(CDI_DOMINATORS, first_bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
++		bb = first_bb;
++	}
++
++	gsi = gsi_after_labels(bb);
++	assign = build_cast_stmt(visited, size_overflow_type, arg, phi_ssa_name, &gsi, BEFORE_STMT, false);
++	pointer_set_insert(visited->my_stmts, assign);
++
++	return gimple_assign_lhs(assign);
++}
++
++static tree use_phi_ssa_name(struct visited *visited, tree ssa_name_var, tree new_arg)
++{
++	gimple_stmt_iterator gsi;
++	gimple assign, def_stmt = get_def_stmt(new_arg);
++
++	if (gimple_code(def_stmt) == GIMPLE_PHI) {
++		gsi = gsi_after_labels(gimple_bb(def_stmt));
++		assign = build_cast_stmt(visited, TREE_TYPE(new_arg), new_arg, ssa_name_var, &gsi, BEFORE_STMT, true);
++	} else {
++		gsi = gsi_for_stmt(def_stmt);
++		assign = build_cast_stmt(visited, TREE_TYPE(new_arg), new_arg, ssa_name_var, &gsi, AFTER_STMT, true);
++	}
++
++	pointer_set_insert(visited->my_stmts, assign);
++	return gimple_assign_lhs(assign);
++}
++
++static tree cast_visited_phi_arg(struct visited *visited, tree ssa_name_var, tree arg, tree size_overflow_type)
++{
++	basic_block bb;
++	gimple_stmt_iterator gsi;
++	const_gimple def_stmt;
++	gimple assign;
++
++	def_stmt = get_def_stmt(arg);
++	bb = gimple_bb(def_stmt);
++	gcc_assert(bb->index != 0);
++	gsi = gsi_after_labels(bb);
++
++	assign = build_cast_stmt(visited, size_overflow_type, arg, ssa_name_var, &gsi, BEFORE_STMT, false);
++	pointer_set_insert(visited->my_stmts, assign);
++	return gimple_assign_lhs(assign);
++}
++
++static tree create_new_phi_arg(struct visited *visited, tree ssa_name_var, tree new_arg, gimple oldstmt, unsigned int i)
++{
++	tree size_overflow_type;
++	tree arg;
++	const_gimple def_stmt;
++
++	if (new_arg != NULL_TREE && is_gimple_constant(new_arg))
++		return new_arg;
++
++	arg = gimple_phi_arg_def(oldstmt, i);
++	def_stmt = get_def_stmt(arg);
++	gcc_assert(def_stmt != NULL);
++	size_overflow_type = get_size_overflow_type(visited, oldstmt, arg);
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_PHI:
++		return cast_visited_phi_arg(visited, ssa_name_var, arg, size_overflow_type);
++	case GIMPLE_NOP: {
++		basic_block bb;
++
++		bb = gimple_phi_arg_edge(oldstmt, i)->src;
++		return cast_parm_decl(visited, ssa_name_var, arg, size_overflow_type, bb);
++	}
++	case GIMPLE_ASM: {
++		gimple_stmt_iterator gsi;
++		gimple assign, stmt = get_def_stmt(arg);
++
++		gsi = gsi_for_stmt(stmt);
++		assign = build_cast_stmt(visited, size_overflow_type, arg, ssa_name_var, &gsi, AFTER_STMT, false);
++		pointer_set_insert(visited->my_stmts, assign);
++		return gimple_assign_lhs(assign);
++	}
++	default:
++		gcc_assert(new_arg != NULL_TREE);
++		gcc_assert(types_compatible_p(TREE_TYPE(new_arg), size_overflow_type));
++		return use_phi_ssa_name(visited, ssa_name_var, new_arg);
++	}
++}
++
++static gimple overflow_create_phi_node(struct visited *visited, gimple oldstmt, tree result)
++{
++	basic_block bb;
++	gimple phi;
++	gimple_seq seq;
++	gimple_stmt_iterator gsi = gsi_for_stmt(oldstmt);
++
++	bb = gsi_bb(gsi);
++
++	if (result == NULL_TREE) {
++		tree old_result = gimple_phi_result(oldstmt);
++		tree size_overflow_type = get_size_overflow_type(visited, oldstmt, old_result);
++
++		result = create_new_var(size_overflow_type);
++	}
++
++	phi = create_phi_node(result, bb);
++	gimple_phi_set_result(phi, make_ssa_name(result, phi));
++	seq = phi_nodes(bb);
++	gsi = gsi_last(seq);
++	gsi_remove(&gsi, false);
++
++	gsi = gsi_for_stmt(oldstmt);
++	gsi_insert_after(&gsi, phi, GSI_NEW_STMT);
++	gimple_set_bb(phi, bb);
++	return phi;
++}
++
++#if BUILDING_GCC_VERSION <= 4007
++static tree create_new_phi_node(struct visited *visited, VEC(tree, heap) **args, tree ssa_name_var, gimple oldstmt)
++#else
++static tree create_new_phi_node(struct visited *visited, vec<tree, va_heap, vl_embed> *&args, tree ssa_name_var, gimple oldstmt)
++#endif
++{
++	gimple new_phi;
++	unsigned int i;
++	tree arg, result;
++	location_t loc = gimple_location(oldstmt);
++
++#if BUILDING_GCC_VERSION <= 4007
++	gcc_assert(!VEC_empty(tree, *args));
++#else
++	gcc_assert(!args->is_empty());
++#endif
++
++	new_phi = overflow_create_phi_node(visited, oldstmt, ssa_name_var);
++	result = gimple_phi_result(new_phi);
++	ssa_name_var = SSA_NAME_VAR(result);
++
++#if BUILDING_GCC_VERSION <= 4007
++	FOR_EACH_VEC_ELT(tree, *args, i, arg) {
++#else
++	FOR_EACH_VEC_SAFE_ELT(args, i, arg) {
++#endif
++		arg = create_new_phi_arg(visited, ssa_name_var, arg, oldstmt, i);
++		add_phi_arg(new_phi, arg, gimple_phi_arg_edge(oldstmt, i), loc);
++	}
++
++#if BUILDING_GCC_VERSION <= 4007
++	VEC_free(tree, heap, *args);
++#else
++	vec_free(args);
++#endif
++	update_stmt(new_phi);
++	pointer_set_insert(visited->my_stmts, new_phi);
++	return result;
++}
++
++static tree handle_phi(struct visited *visited, struct cgraph_node *caller_node, tree orig_result)
++{
++	tree ssa_name_var = NULL_TREE;
++#if BUILDING_GCC_VERSION <= 4007
++	VEC(tree, heap) *args = NULL;
++#else
++	vec<tree, va_heap, vl_embed> *args = NULL;
++#endif
++	gimple oldstmt = get_def_stmt(orig_result);
++	unsigned int i, len = gimple_phi_num_args(oldstmt);
++
++	pointer_set_insert(visited->stmts, oldstmt);
++	for (i = 0; i < len; i++) {
++		tree arg, new_arg;
++
++		arg = gimple_phi_arg_def(oldstmt, i);
++		new_arg = expand(visited, caller_node, arg);
++
++		if (ssa_name_var == NULL_TREE && new_arg != NULL_TREE)
++			ssa_name_var = SSA_NAME_VAR(new_arg);
++
++		if (is_gimple_constant(arg)) {
++			tree size_overflow_type = get_size_overflow_type(visited, oldstmt, arg);
++
++			new_arg = cast_a_tree(size_overflow_type, arg);
++		}
++
++#if BUILDING_GCC_VERSION <= 4007
++		VEC_safe_push(tree, heap, args, new_arg);
++#else
++		vec_safe_push(args, new_arg);
++#endif
++	}
++
++#if BUILDING_GCC_VERSION <= 4007
++	return create_new_phi_node(visited, &args, ssa_name_var, oldstmt);
++#else
++	return create_new_phi_node(visited, args, ssa_name_var, oldstmt);
++#endif
++}
++
++static tree create_cast_assign(struct visited *visited, gimple stmt)
++{
++	tree rhs1 = gimple_assign_rhs1(stmt);
++	tree lhs = gimple_assign_lhs(stmt);
++	const_tree rhs1_type = TREE_TYPE(rhs1);
++	const_tree lhs_type = TREE_TYPE(lhs);
++
++	if (TYPE_UNSIGNED(rhs1_type) == TYPE_UNSIGNED(lhs_type))
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++
++	return create_assign(visited, stmt, rhs1, AFTER_STMT);
++}
++
++static bool skip_lhs_cast_check(const_gimple stmt)
++{
++	const_tree rhs = gimple_assign_rhs1(stmt);
++	const_gimple def_stmt = get_def_stmt(rhs);
++
++	// 3.8.2 kernel/futex_compat.c compat_exit_robust_list(): get_user() 64 ulong -> int (compat_long_t), int max
++	if (gimple_code(def_stmt) == GIMPLE_ASM)
++		return true;
++
++	if (is_const_plus_unsigned_signed_truncation(rhs))
++		return true;
++
++	return false;
++}
++
++static tree create_string_param(tree string)
++{
++	tree i_type, a_type;
++	const int length = TREE_STRING_LENGTH(string);
++
++	gcc_assert(length > 0);
++
++	i_type = build_index_type(build_int_cst(NULL_TREE, length - 1));
++	a_type = build_array_type(char_type_node, i_type);
++
++	TREE_TYPE(string) = a_type;
++	TREE_CONSTANT(string) = 1;
++	TREE_READONLY(string) = 1;
++
++	return build1(ADDR_EXPR, ptr_type_node, string);
++}
++
++static void insert_cond(basic_block cond_bb, tree arg, enum tree_code cond_code, tree type_value)
++{
++	gimple cond_stmt;
++	gimple_stmt_iterator gsi = gsi_last_bb(cond_bb);
++
++	cond_stmt = gimple_build_cond(cond_code, arg, type_value, NULL_TREE, NULL_TREE);
++	gsi_insert_after(&gsi, cond_stmt, GSI_CONTINUE_LINKING);
++	update_stmt(cond_stmt);
++}
++
++static void insert_cond_result(struct cgraph_node *caller_node, basic_block bb_true, const_gimple stmt, const_tree arg, bool min)
++{
++	gimple func_stmt;
++	const_gimple def_stmt;
++	const_tree loc_line;
++	tree loc_file, ssa_name, current_func;
++	expanded_location xloc;
++	char *ssa_name_buf;
++	int len;
++	struct cgraph_edge *edge;
++	struct cgraph_node *callee_node;
++	int frequency;
++	gimple_stmt_iterator gsi = gsi_start_bb(bb_true);
++
++	def_stmt = get_def_stmt(arg);
++	xloc = expand_location(gimple_location(def_stmt));
++
++	if (!gimple_has_location(def_stmt)) {
++		xloc = expand_location(gimple_location(stmt));
++		if (!gimple_has_location(stmt))
++			xloc = expand_location(DECL_SOURCE_LOCATION(current_function_decl));
++	}
++
++	loc_line = build_int_cstu(unsigned_type_node, xloc.line);
++
++	loc_file = build_string(strlen(xloc.file) + 1, xloc.file);
++	loc_file = create_string_param(loc_file);
++
++	current_func = build_string(DECL_NAME_LENGTH(current_function_decl) + 1, DECL_NAME_POINTER(current_function_decl));
++	current_func = create_string_param(current_func);
++
++	gcc_assert(DECL_NAME(SSA_NAME_VAR(arg)) != NULL);
++	call_count++;
++	len = asprintf(&ssa_name_buf, "%s_%u %s, count: %u\n", DECL_NAME_POINTER(SSA_NAME_VAR(arg)), SSA_NAME_VERSION(arg), min ? "min" : "max", call_count);
++	gcc_assert(len > 0);
++	ssa_name = build_string(len + 1, ssa_name_buf);
++	free(ssa_name_buf);
++	ssa_name = create_string_param(ssa_name);
++
++	// void report_size_overflow(const char *file, unsigned int line, const char *func, const char *ssa_name)
++	func_stmt = gimple_build_call(report_size_overflow_decl, 4, loc_file, loc_line, current_func, ssa_name);
++	gsi_insert_after(&gsi, func_stmt, GSI_CONTINUE_LINKING);
++
++	callee_node = cgraph_get_create_node(report_size_overflow_decl);
++	frequency = compute_call_stmt_bb_frequency(current_function_decl, bb_true);
++
++	edge = cgraph_create_edge(caller_node, callee_node, func_stmt, bb_true->count, frequency, bb_true->loop_depth);
++	gcc_assert(edge != NULL);
++}
++
++static void insert_check_size_overflow(struct cgraph_node *caller_node, gimple stmt, enum tree_code cond_code, tree arg, tree type_value, bool before, bool min)
++{
++	basic_block cond_bb, join_bb, bb_true;
++	edge e;
++	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
++
++	cond_bb = gimple_bb(stmt);
++	if (before)
++		gsi_prev(&gsi);
++	if (gsi_end_p(gsi))
++		e = split_block_after_labels(cond_bb);
++	else
++		e = split_block(cond_bb, gsi_stmt(gsi));
++	cond_bb = e->src;
++	join_bb = e->dest;
++	e->flags = EDGE_FALSE_VALUE;
++	e->probability = REG_BR_PROB_BASE;
++
++	bb_true = create_empty_bb(cond_bb);
++	make_edge(cond_bb, bb_true, EDGE_TRUE_VALUE);
++	make_edge(cond_bb, join_bb, EDGE_FALSE_VALUE);
++	make_edge(bb_true, join_bb, EDGE_FALLTHRU);
++
++	gcc_assert(dom_info_available_p(CDI_DOMINATORS));
++	set_immediate_dominator(CDI_DOMINATORS, bb_true, cond_bb);
++	set_immediate_dominator(CDI_DOMINATORS, join_bb, cond_bb);
++
++	if (current_loops != NULL) {
++		gcc_assert(cond_bb->loop_father == join_bb->loop_father);
++		add_bb_to_loop(bb_true, cond_bb->loop_father);
++	}
++
++	insert_cond(cond_bb, arg, cond_code, type_value);
++	insert_cond_result(caller_node, bb_true, stmt, arg, min);
++
++//	print_the_code_insertions(stmt);
++}
++
++void check_size_overflow(struct cgraph_node *caller_node, gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool before)
++{
++	const_tree rhs_type = TREE_TYPE(rhs);
++	tree cast_rhs_type, type_max_type, type_min_type, type_max, type_min;
++
++	gcc_assert(rhs_type != NULL_TREE);
++	if (TREE_CODE(rhs_type) == POINTER_TYPE)
++		return;
++
++	gcc_assert(TREE_CODE(rhs_type) == INTEGER_TYPE || TREE_CODE(rhs_type) == ENUMERAL_TYPE);
++
++	if (is_const_plus_unsigned_signed_truncation(rhs))
++		return;
++
++	type_max = cast_a_tree(size_overflow_type, TYPE_MAX_VALUE(rhs_type));
++	// typemax (-1) < typemin (0)
++	if (TREE_OVERFLOW(type_max))
++		return;
++
++	type_min = cast_a_tree(size_overflow_type, TYPE_MIN_VALUE(rhs_type));
++
++	cast_rhs_type = TREE_TYPE(cast_rhs);
++	type_max_type = TREE_TYPE(type_max);
++	gcc_assert(types_compatible_p(cast_rhs_type, type_max_type));
++
++	insert_check_size_overflow(caller_node, stmt, GT_EXPR, cast_rhs, type_max, before, MAX_CHECK);
++
++	// special case: get_size_overflow_type(), 32, u64->s
++	if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode) && TYPE_UNSIGNED(size_overflow_type) && !TYPE_UNSIGNED(rhs_type))
++		return;
++
++	type_min_type = TREE_TYPE(type_min);
++	gcc_assert(types_compatible_p(type_max_type, type_min_type));
++	insert_check_size_overflow(caller_node, stmt, LT_EXPR, cast_rhs, type_min, before, MIN_CHECK);
++}
++
++static tree create_cast_overflow_check(struct visited *visited, struct cgraph_node *caller_node, tree new_rhs1, gimple stmt)
++{
++	bool cast_lhs, cast_rhs;
++	tree lhs = gimple_assign_lhs(stmt);
++	tree rhs = gimple_assign_rhs1(stmt);
++	const_tree lhs_type = TREE_TYPE(lhs);
++	const_tree rhs_type = TREE_TYPE(rhs);
++	enum machine_mode lhs_mode = TYPE_MODE(lhs_type);
++	enum machine_mode rhs_mode = TYPE_MODE(rhs_type);
++	unsigned int lhs_size = GET_MODE_BITSIZE(lhs_mode);
++	unsigned int rhs_size = GET_MODE_BITSIZE(rhs_mode);
++
++	static bool check_lhs[3][4] = {
++		// ss    su     us     uu
++		{ false, true,  true,  false }, // lhs > rhs
++		{ false, false, false, false }, // lhs = rhs
++		{ true,  true,  true,  true  }, // lhs < rhs
++	};
++
++	static bool check_rhs[3][4] = {
++		// ss    su     us     uu
++		{ true,  false, true,  true  }, // lhs > rhs
++		{ true,  false, true,  true  }, // lhs = rhs
++		{ true,  false, true,  true  }, // lhs < rhs
++	};
++
++	// skip lhs check on signed SI -> HI cast or signed SI -> QI cast !!!!
++	if (rhs_mode == SImode && !TYPE_UNSIGNED(rhs_type) && (lhs_mode == HImode || lhs_mode == QImode))
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++
++	if (lhs_size > rhs_size) {
++		cast_lhs = check_lhs[0][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
++		cast_rhs = check_rhs[0][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
++	} else if (lhs_size == rhs_size) {
++		cast_lhs = check_lhs[1][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
++		cast_rhs = check_rhs[1][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
++	} else {
++		cast_lhs = check_lhs[2][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
++		cast_rhs = check_rhs[2][TYPE_UNSIGNED(rhs_type) + 2 * TYPE_UNSIGNED(lhs_type)];
++	}
++
++	if (!cast_lhs && !cast_rhs)
++		return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
++
++	if (cast_lhs && !skip_lhs_cast_check(stmt))
++		check_size_overflow(caller_node, stmt, TREE_TYPE(new_rhs1), new_rhs1, lhs, BEFORE_STMT);
++
++	if (cast_rhs)
++		check_size_overflow(caller_node, stmt, TREE_TYPE(new_rhs1), new_rhs1, rhs, BEFORE_STMT);
++
++	return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
++}
++
++static tree handle_unary_rhs(struct visited *visited, struct cgraph_node *caller_node, gimple stmt)
++{
++	enum tree_code rhs_code;
++	tree rhs1, new_rhs1, lhs = gimple_assign_lhs(stmt);
++
++	if (pointer_set_contains(visited->my_stmts, stmt))
++		return lhs;
++
++	rhs1 = gimple_assign_rhs1(stmt);
++	if (TREE_CODE(TREE_TYPE(rhs1)) == POINTER_TYPE)
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++
++	new_rhs1 = expand(visited, caller_node, rhs1);
++
++	if (new_rhs1 == NULL_TREE)
++		return create_cast_assign(visited, stmt);
++
++	if (pointer_set_contains(visited->no_cast_check, stmt))
++		return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
++
++	rhs_code = gimple_assign_rhs_code(stmt);
++	if (rhs_code == BIT_NOT_EXPR || rhs_code == NEGATE_EXPR) {
++		tree size_overflow_type = get_size_overflow_type(visited, stmt, rhs1);
++
++		new_rhs1 = cast_to_new_size_overflow_type(visited, stmt, new_rhs1, size_overflow_type, BEFORE_STMT);
++		check_size_overflow(caller_node, stmt, size_overflow_type, new_rhs1, rhs1, BEFORE_STMT);
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++	}
++
++	if (!gimple_assign_cast_p(stmt))
++		return dup_assign(visited, stmt, lhs, new_rhs1, NULL_TREE, NULL_TREE);
++
++	return create_cast_overflow_check(visited, caller_node, new_rhs1, stmt);
++}
++
++static tree handle_unary_ops(struct visited *visited, struct cgraph_node *caller_node, gimple stmt)
++{
++	tree rhs1, lhs = gimple_assign_lhs(stmt);
++	gimple def_stmt = get_def_stmt(lhs);
++
++	gcc_assert(gimple_code(def_stmt) != GIMPLE_NOP);
++	rhs1 = gimple_assign_rhs1(def_stmt);
++
++	if (is_gimple_constant(rhs1))
++		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
++
++	switch (TREE_CODE(rhs1)) {
++	case SSA_NAME: {
++		tree ret = handle_unary_rhs(visited, caller_node, def_stmt);
++
++		if (gimple_assign_cast_p(stmt))
++			unsigned_signed_cast_intentional_overflow(visited, stmt);
++		return ret;
++	}
++	case ARRAY_REF:
++	case BIT_FIELD_REF:
++	case ADDR_EXPR:
++	case COMPONENT_REF:
++	case INDIRECT_REF:
++#if BUILDING_GCC_VERSION >= 4006
++	case MEM_REF:
++#endif
++	case TARGET_MEM_REF:
++	case VIEW_CONVERT_EXPR:
++		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
++	case PARM_DECL:
++	case VAR_DECL:
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++
++	default:
++		debug_gimple_stmt(def_stmt);
++		debug_tree(rhs1);
++		gcc_unreachable();
++	}
++}
++
++static void __unused print_the_code_insertions(const_gimple stmt)
++{
++	location_t loc = gimple_location(stmt);
++
++	inform(loc, "Integer size_overflow check applied here.");
++}
++
++static bool is_from_cast(const_tree node)
++{
++	gimple def_stmt = get_def_stmt(node);
++
++	if (!def_stmt)
++		return false;
++
++	if (gimple_assign_cast_p(def_stmt))
++		return true;
++
++	return false;
++}
++
++// Skip duplication when there is a minus expr and the type of rhs1 or rhs2 is a pointer_type.
++static bool is_a_ptr_minus(gimple stmt)
++{
++	const_tree rhs1, rhs2, ptr1_rhs, ptr2_rhs;
++
++	if (gimple_assign_rhs_code(stmt) != MINUS_EXPR)
++		return false;
++
++	rhs1 = gimple_assign_rhs1(stmt);
++	if (!is_from_cast(rhs1))
++		return false;
++
++	rhs2 = gimple_assign_rhs2(stmt);
++	if (!is_from_cast(rhs2))
++		return false;
++
++	ptr1_rhs = gimple_assign_rhs1(get_def_stmt(rhs1));
++	ptr2_rhs = gimple_assign_rhs1(get_def_stmt(rhs2));
++
++	if (TREE_CODE(TREE_TYPE(ptr1_rhs)) != POINTER_TYPE && TREE_CODE(TREE_TYPE(ptr2_rhs)) != POINTER_TYPE)
++		return false;
++
++	return true;
++}
++
++static tree handle_binary_ops(struct visited *visited, struct cgraph_node *caller_node, tree lhs)
++{
++	enum intentional_overflow_type res;
++	tree rhs1, rhs2, new_lhs;
++	gimple def_stmt = get_def_stmt(lhs);
++	tree new_rhs1 = NULL_TREE;
++	tree new_rhs2 = NULL_TREE;
++
++	if (is_a_ptr_minus(def_stmt))
++		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs2 = gimple_assign_rhs2(def_stmt);
++
++	/* no DImode/TImode division in the 32/64 bit kernel */
++	switch (gimple_assign_rhs_code(def_stmt)) {
++	case RDIV_EXPR:
++	case TRUNC_DIV_EXPR:
++	case CEIL_DIV_EXPR:
++	case FLOOR_DIV_EXPR:
++	case ROUND_DIV_EXPR:
++	case TRUNC_MOD_EXPR:
++	case CEIL_MOD_EXPR:
++	case FLOOR_MOD_EXPR:
++	case ROUND_MOD_EXPR:
++	case EXACT_DIV_EXPR:
++	case POINTER_PLUS_EXPR:
++	case BIT_AND_EXPR:
++		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
++	default:
++		break;
++	}
++
++	new_lhs = handle_integer_truncation(visited, caller_node, lhs);
++	if (new_lhs != NULL_TREE)
++		return new_lhs;
++
++	if (TREE_CODE(rhs1) == SSA_NAME)
++		new_rhs1 = expand(visited, caller_node, rhs1);
++	if (TREE_CODE(rhs2) == SSA_NAME)
++		new_rhs2 = expand(visited, caller_node, rhs2);
++
++	res = add_mul_intentional_overflow(def_stmt);
++	if (res != NO_INTENTIONAL_OVERFLOW) {
++		new_lhs = dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
++		insert_cast_expr(visited, get_def_stmt(new_lhs), res);
++		return new_lhs;
++	}
++
++	if (skip_expr_on_double_type(def_stmt)) {
++		new_lhs = dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
++		insert_cast_expr(visited, get_def_stmt(new_lhs), NO_INTENTIONAL_OVERFLOW);
++		return new_lhs;
++	}
++
++	if (is_a_neg_overflow(def_stmt, rhs2))
++		return handle_intentional_overflow(visited, caller_node, true, def_stmt, new_rhs1, NULL_TREE);
++	if (is_a_neg_overflow(def_stmt, rhs1))
++		return handle_intentional_overflow(visited, caller_node, true, def_stmt, new_rhs2, new_rhs2);
++
++
++	if (is_a_constant_overflow(def_stmt, rhs2))
++		return handle_intentional_overflow(visited, caller_node, !is_a_cast_and_const_overflow(rhs1), def_stmt, new_rhs1, NULL_TREE);
++	if (is_a_constant_overflow(def_stmt, rhs1))
++		return handle_intentional_overflow(visited, caller_node, !is_a_cast_and_const_overflow(rhs2), def_stmt, new_rhs2, new_rhs2);
++
++	// the const is between 0 and (signed) MAX
++	if (is_gimple_constant(rhs1))
++		new_rhs1 = create_assign(visited, def_stmt, rhs1, BEFORE_STMT);
++	if (is_gimple_constant(rhs2))
++		new_rhs2 = create_assign(visited, def_stmt, rhs2, BEFORE_STMT);
++
++	return dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
++}
++
++#if BUILDING_GCC_VERSION >= 4006
++static tree get_new_rhs(struct visited *visited, struct cgraph_node *caller_node, tree size_overflow_type, tree rhs)
++{
++	if (is_gimple_constant(rhs))
++		return cast_a_tree(size_overflow_type, rhs);
++	if (TREE_CODE(rhs) != SSA_NAME)
++		return NULL_TREE;
++	return expand(visited, caller_node, rhs);
++}
++
++static tree handle_ternary_ops(struct visited *visited, struct cgraph_node *caller_node, tree lhs)
++{
++	tree rhs1, rhs2, rhs3, new_rhs1, new_rhs2, new_rhs3, size_overflow_type;
++	gimple def_stmt = get_def_stmt(lhs);
++
++	size_overflow_type = get_size_overflow_type(visited, def_stmt, lhs);
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs2 = gimple_assign_rhs2(def_stmt);
++	rhs3 = gimple_assign_rhs3(def_stmt);
++	new_rhs1 = get_new_rhs(visited, caller_node, size_overflow_type, rhs1);
++	new_rhs2 = get_new_rhs(visited, caller_node, size_overflow_type, rhs2);
++	new_rhs3 = get_new_rhs(visited, caller_node, size_overflow_type, rhs3);
++
++	return dup_assign(visited, def_stmt, lhs, new_rhs1, new_rhs2, new_rhs3);
++}
++#endif
++
++static tree get_my_stmt_lhs(struct visited *visited, gimple stmt)
++{
++	gimple_stmt_iterator gsi;
++	gimple next_stmt = NULL;
++
++	gsi = gsi_for_stmt(stmt);
++
++	do {
++		gsi_next(&gsi);
++		next_stmt = gsi_stmt(gsi);
++
++		if (gimple_code(stmt) == GIMPLE_PHI && !pointer_set_contains(visited->my_stmts, next_stmt))
++			return NULL_TREE;
++
++		if (pointer_set_contains(visited->my_stmts, next_stmt) && !pointer_set_contains(visited->skip_expr_casts, next_stmt))
++			break;
++
++		gcc_assert(pointer_set_contains(visited->my_stmts, next_stmt));
++	} while (!gsi_end_p(gsi));
++
++	gcc_assert(next_stmt);
++	return get_lhs(next_stmt);
++}
++
++static tree expand_visited(struct visited *visited, gimple def_stmt)
++{
++	gimple_stmt_iterator gsi;
++	enum gimple_code code = gimple_code(def_stmt);
++
++	if (code == GIMPLE_ASM)
++		return NULL_TREE;
++
++	gsi = gsi_for_stmt(def_stmt);
++	gsi_next(&gsi);
++
++	if (gimple_code(def_stmt) == GIMPLE_PHI && gsi_end_p(gsi))
++		return NULL_TREE;
++	return get_my_stmt_lhs(visited, def_stmt);
++}
++
++tree expand(struct visited *visited, struct cgraph_node *caller_node, tree lhs)
++{
++	gimple def_stmt;
++
++	def_stmt = get_def_stmt(lhs);
++
++	if (!def_stmt || gimple_code(def_stmt) == GIMPLE_NOP)
++		return NULL_TREE;
++
++	if (pointer_set_contains(visited->my_stmts, def_stmt))
++		return lhs;
++
++	if (pointer_set_contains(visited->stmts, def_stmt))
++		return expand_visited(visited, def_stmt);
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_PHI:
++		return handle_phi(visited, caller_node, lhs);
++	case GIMPLE_CALL:
++	case GIMPLE_ASM:
++		return create_assign(visited, def_stmt, lhs, AFTER_STMT);
++	case GIMPLE_ASSIGN:
++		switch (gimple_num_ops(def_stmt)) {
++		case 2:
++			return handle_unary_ops(visited, caller_node, def_stmt);
++		case 3:
++			return handle_binary_ops(visited, caller_node, lhs);
++#if BUILDING_GCC_VERSION >= 4006
++		case 4:
++			return handle_ternary_ops(visited, caller_node, lhs);
++#endif
++		}
++	default:
++		debug_gimple_stmt(def_stmt);
++		error("%s: unknown gimple code", __func__);
++		gcc_unreachable();
++	}
++}
++
+diff --git a/tools/gcc/size_overflow_plugin/insert_size_overflow_check_ipa.c b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_ipa.c
+new file mode 100644
+index 0000000..df50164
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/insert_size_overflow_check_ipa.c
+@@ -0,0 +1,1141 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++#define VEC_LEN 128
++#define RET_CHECK NULL_TREE
++#define WRONG_NODE 32
++#define NOT_INTENTIONAL_ASM NULL
++
++unsigned int call_count;
++
++static void set_conditions(struct pointer_set_t *visited, bool *interesting_conditions, const_tree lhs);
++static void walk_use_def(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs);
++
++struct visited_fns {
++	struct visited_fns *next;
++	const_tree fndecl;
++	unsigned int num;
++	const_gimple first_stmt;
++};
++
++struct next_cgraph_node {
++	struct next_cgraph_node *next;
++	struct cgraph_node *current_function;
++	tree callee_fndecl;
++	unsigned int num;
++};
++
++// Don't want to duplicate entries in next_cgraph_node
++static bool is_in_next_cgraph_node(struct next_cgraph_node *head, struct cgraph_node *node, const_tree fndecl, unsigned int num)
++{
++	const_tree new_callee_fndecl;
++	struct next_cgraph_node *cur_node;
++
++	if (fndecl == RET_CHECK)
++		new_callee_fndecl = NODE_DECL(node);
++	else
++		new_callee_fndecl = fndecl;
++
++	for (cur_node = head; cur_node; cur_node = cur_node->next) {
++		if (!operand_equal_p(NODE_DECL(cur_node->current_function), NODE_DECL(node), 0))
++			continue;
++		if (!operand_equal_p(cur_node->callee_fndecl, new_callee_fndecl, 0))
++			continue;
++		if (num == cur_node->num)
++			return true;
++	}
++	return false;
++}
++
++/* Add a next_cgraph_node into the list for handle_function().
++ * handle_function()  iterates over all the next cgraph nodes and
++ * starts the overflow check insertion process.
++ */
++static struct next_cgraph_node *create_new_next_cgraph_node(struct next_cgraph_node *head, struct cgraph_node *node, tree fndecl, unsigned int num)
++{
++	struct next_cgraph_node *new_node;
++
++	if (is_in_next_cgraph_node(head, node, fndecl, num))
++		return head;
++
++	new_node = (struct next_cgraph_node *)xmalloc(sizeof(*new_node));
++	new_node->current_function = node;
++	new_node->next = NULL;
++	new_node->num = num;
++	if (fndecl == RET_CHECK)
++		new_node->callee_fndecl = NODE_DECL(node);
++	else
++		new_node->callee_fndecl = fndecl;
++
++	if (!head)
++		return new_node;
++
++	new_node->next = head;
++	return new_node;
++}
++
++static struct next_cgraph_node *create_new_next_cgraph_nodes(struct next_cgraph_node *head, struct cgraph_node *node, unsigned int num)
++{
++	struct cgraph_edge *e;
++
++	if (num == 0)
++		return create_new_next_cgraph_node(head, node, RET_CHECK, num);
++
++	for (e = node->callers; e; e = e->next_caller) {
++		tree fndecl = gimple_call_fndecl(e->call_stmt);
++
++		gcc_assert(fndecl != NULL_TREE);
++		head = create_new_next_cgraph_node(head, e->caller, fndecl, num);
++	}
++
++	return head;
++}
++
++struct missing_functions {
++	struct missing_functions *next;
++	const_tree node;
++	tree fndecl;
++};
++
++static struct missing_functions *create_new_missing_function(struct missing_functions *missing_fn_head, tree node)
++{
++	struct missing_functions *new_function;
++
++	new_function = (struct missing_functions *)xmalloc(sizeof(*new_function));
++	new_function->node = node;
++	new_function->next = NULL;
++
++	if (TREE_CODE(node) == FUNCTION_DECL)
++		new_function->fndecl = node;
++	else
++		new_function->fndecl = current_function_decl;
++	gcc_assert(new_function->fndecl);
++
++	if (!missing_fn_head)
++		return new_function;
++
++	new_function->next = missing_fn_head;
++	return new_function;
++}
++
++/* If the function is missing from the hash table and it is a static function
++ * then create a next_cgraph_node from it for handle_function()
++ */
++static struct next_cgraph_node *check_missing_overflow_attribute_and_create_next_node(struct next_cgraph_node *cnodes, struct missing_functions *missing_fn_head)
++{
++	unsigned int num;
++	const_tree orig_fndecl;
++	struct cgraph_node *next_node = NULL;
++
++	orig_fndecl = DECL_ORIGIN(missing_fn_head->fndecl);
++
++	num = get_function_num(missing_fn_head->node, orig_fndecl);
++	if (num == CANNOT_FIND_ARG)
++		return cnodes;
++
++	if (!is_missing_function(orig_fndecl, num))
++		return cnodes;
++
++	next_node = cgraph_get_node(missing_fn_head->fndecl);
++	if (next_node && next_node->local.local)
++		cnodes = create_new_next_cgraph_nodes(cnodes, next_node, num);
++	return cnodes;
++}
++
++/* Search for missing size_overflow attributes on the last nodes in ipa and collect them
++ * into the next_cgraph_node list. They will be the next interesting returns or callees.
++ */
++static struct next_cgraph_node *search_overflow_attribute(struct next_cgraph_node *cnodes, struct interesting_node *cur_node)
++{
++	unsigned int i;
++	tree node;
++	struct missing_functions *cur, *missing_fn_head = NULL;
++
++#if BUILDING_GCC_VERSION <= 4007
++	FOR_EACH_VEC_ELT(tree, cur_node->last_nodes, i, node) {
++#else
++	FOR_EACH_VEC_ELT(*cur_node->last_nodes, i, node) {
++#endif
++		switch (TREE_CODE(node)) {
++		case PARM_DECL:
++			if (TREE_CODE(TREE_TYPE(node)) != INTEGER_TYPE)
++				break;
++		case FUNCTION_DECL:
++			missing_fn_head = create_new_missing_function(missing_fn_head, node);
++			break;
++		default:
++			break;
++		}
++	}
++
++	while (missing_fn_head) {
++		cnodes = check_missing_overflow_attribute_and_create_next_node(cnodes, missing_fn_head);
++
++		cur = missing_fn_head->next;
++		free(missing_fn_head);
++		missing_fn_head = cur;
++	}
++
++	return cnodes;
++}
++
++static void walk_phi_set_conditions(struct pointer_set_t *visited, bool *interesting_conditions, const_tree result)
++{
++	gimple phi = get_def_stmt(result);
++	unsigned int i, n = gimple_phi_num_args(phi);
++
++	pointer_set_insert(visited, phi);
++	for (i = 0; i < n; i++) {
++		const_tree arg = gimple_phi_arg_def(phi, i);
++
++		set_conditions(visited, interesting_conditions, arg);
++	}
++}
++
++enum conditions {
++	FROM_CONST, NOT_UNARY, CAST, RET, PHI
++};
++
++// Search for constants, cast assignments and binary/ternary assignments
++static void set_conditions(struct pointer_set_t *visited, bool *interesting_conditions, const_tree lhs)
++{
++	gimple def_stmt = get_def_stmt(lhs);
++
++	if (is_gimple_constant(lhs)) {
++		interesting_conditions[FROM_CONST] = true;
++		return;
++	}
++
++	if (!def_stmt)
++		return;
++
++	if (pointer_set_contains(visited, def_stmt))
++		return;
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_CALL:
++		if (lhs == gimple_call_lhs(def_stmt))
++			interesting_conditions[RET] = true;
++		return;
++	case GIMPLE_NOP:
++	case GIMPLE_ASM:
++		return;
++	case GIMPLE_PHI:
++		interesting_conditions[PHI] = true;
++		return walk_phi_set_conditions(visited, interesting_conditions, lhs);
++	case GIMPLE_ASSIGN:
++		if (gimple_num_ops(def_stmt) == 2) {
++			const_tree rhs = gimple_assign_rhs1(def_stmt);
++
++			if (gimple_assign_cast_p(def_stmt))
++				interesting_conditions[CAST] = true;
++
++			return set_conditions(visited, interesting_conditions, rhs);
++		} else {
++			interesting_conditions[NOT_UNARY] = true;
++			return;
++		}
++	default:
++		debug_gimple_stmt(def_stmt);
++		gcc_unreachable();
++	}
++}
++
++// determine whether duplication will be necessary or not.
++static void search_interesting_conditions(struct interesting_node *cur_node, bool *interesting_conditions)
++{
++	struct pointer_set_t *visited;
++
++	if (gimple_assign_cast_p(cur_node->first_stmt))
++		interesting_conditions[CAST] = true;
++	else if (is_gimple_assign(cur_node->first_stmt) && gimple_num_ops(cur_node->first_stmt) > 2)
++		interesting_conditions[NOT_UNARY] = true;
++
++	visited = pointer_set_create();
++	set_conditions(visited, interesting_conditions, cur_node->node);
++	pointer_set_destroy(visited);
++}
++
++// Remove the size_overflow asm stmt and create an assignment from the input and output of the asm
++static void replace_size_overflow_asm_with_assign(gimple asm_stmt, tree lhs, tree rhs)
++{
++	gimple assign;
++	gimple_stmt_iterator gsi;
++
++	// already removed
++	if (gimple_bb(asm_stmt) == NULL)
++		return;
++	gsi = gsi_for_stmt(asm_stmt);
++
++	assign = gimple_build_assign(lhs, rhs);
++	gsi_insert_before(&gsi, assign, GSI_SAME_STMT);
++	SSA_NAME_DEF_STMT(lhs) = assign;
++
++	gsi_remove(&gsi, true);
++}
++
++/* Get the fndecl of an interesting stmt, the fndecl is the caller function if the interesting
++ * stmt is a return otherwise it is the callee function.
++ */
++const_tree get_interesting_orig_fndecl(const_gimple stmt, unsigned int argnum)
++{
++	const_tree fndecl;
++
++	if (argnum == 0)
++		fndecl = current_function_decl;
++	else
++		fndecl = gimple_call_fndecl(stmt);
++
++	if (fndecl == NULL_TREE)
++		return NULL_TREE;
++
++	return DECL_ORIGIN(fndecl);
++}
++
++// e.g., 3.8.2, 64, arch/x86/ia32/ia32_signal.c copy_siginfo_from_user32(): compat_ptr() u32 max
++static bool skip_asm(const_tree arg)
++{
++	gimple def_stmt = get_def_stmt(arg);
++
++	if (!def_stmt || !gimple_assign_cast_p(def_stmt))
++		return false;
++
++	def_stmt = get_def_stmt(gimple_assign_rhs1(def_stmt));
++	return def_stmt && gimple_code(def_stmt) == GIMPLE_ASM;
++}
++
++static void walk_use_def_phi(struct pointer_set_t *visited, struct interesting_node *cur_node, tree result)
++{
++	gimple phi = get_def_stmt(result);
++	unsigned int i, n = gimple_phi_num_args(phi);
++
++	pointer_set_insert(visited, phi);
++	for (i = 0; i < n; i++) {
++		tree arg = gimple_phi_arg_def(phi, i);
++
++		walk_use_def(visited, cur_node, arg);
++	}
++}
++
++static void walk_use_def_binary(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs)
++{
++	gimple def_stmt = get_def_stmt(lhs);
++	tree rhs1, rhs2;
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs2 = gimple_assign_rhs2(def_stmt);
++
++	walk_use_def(visited, cur_node, rhs1);
++	walk_use_def(visited, cur_node, rhs2);
++}
++
++static void insert_last_node(struct interesting_node *cur_node, tree node)
++{
++	unsigned int i;
++	tree element;
++	enum tree_code code;
++
++	gcc_assert(node != NULL_TREE);
++
++	if (is_gimple_constant(node))
++		return;
++
++	code = TREE_CODE(node);
++	if (code == VAR_DECL) {
++		node = DECL_ORIGIN(node);
++		code = TREE_CODE(node);
++	}
++
++	if (code != PARM_DECL && code != FUNCTION_DECL && code != COMPONENT_REF)
++		return;
++
++#if BUILDING_GCC_VERSION <= 4007
++	FOR_EACH_VEC_ELT(tree, cur_node->last_nodes, i, element) {
++#else
++	FOR_EACH_VEC_ELT(*cur_node->last_nodes, i, element) {
++#endif
++		if (operand_equal_p(node, element, 0))
++			return;
++	}
++
++#if BUILDING_GCC_VERSION <= 4007
++	gcc_assert(VEC_length(tree, cur_node->last_nodes) < VEC_LEN);
++	VEC_safe_push(tree, gc, cur_node->last_nodes, node);
++#else
++	gcc_assert(cur_node->last_nodes->length() < VEC_LEN);
++	vec_safe_push(cur_node->last_nodes, node);
++#endif
++}
++
++// a size_overflow asm stmt in the control flow doesn't stop the recursion
++static void handle_asm_stmt(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs, const_gimple stmt)
++{
++	if (!is_size_overflow_asm(stmt))
++		walk_use_def(visited, cur_node, SSA_NAME_VAR(lhs));
++}
++
++/* collect the parm_decls and fndecls (for checking a missing size_overflow attribute (ret or arg) or intentional_overflow)
++ * and component refs (for checking the intentional_overflow attribute).
++ */
++static void walk_use_def(struct pointer_set_t *visited, struct interesting_node *cur_node, tree lhs)
++{
++	const_gimple def_stmt;
++
++	if (TREE_CODE(lhs) != SSA_NAME) {
++		insert_last_node(cur_node, lhs);
++		return;
++	}
++
++	def_stmt = get_def_stmt(lhs);
++	if (!def_stmt)
++		return;
++
++	if (pointer_set_insert(visited, def_stmt))
++		return;
++
++	switch (gimple_code(def_stmt)) {
++	case GIMPLE_NOP:
++		return walk_use_def(visited, cur_node, SSA_NAME_VAR(lhs));
++	case GIMPLE_ASM:
++		return handle_asm_stmt(visited, cur_node, lhs, def_stmt);
++	case GIMPLE_CALL: {
++		tree fndecl = gimple_call_fndecl(def_stmt);
++
++		if (fndecl == NULL_TREE)
++			return;
++		insert_last_node(cur_node, fndecl);
++		return;
++	}
++	case GIMPLE_PHI:
++		return walk_use_def_phi(visited, cur_node, lhs);
++	case GIMPLE_ASSIGN:
++		switch (gimple_num_ops(def_stmt)) {
++		case 2:
++			return walk_use_def(visited, cur_node, gimple_assign_rhs1(def_stmt));
++		case 3:
++			return walk_use_def_binary(visited, cur_node, lhs);
++		}
++	default:
++		debug_gimple_stmt((gimple)def_stmt);
++		error("%s: unknown gimple code", __func__);
++		gcc_unreachable();
++	}
++}
++
++// Collect all the last nodes for checking the intentional_overflow and size_overflow attributes
++static void set_last_nodes(struct interesting_node *cur_node)
++{
++	struct pointer_set_t *visited;
++
++	visited = pointer_set_create();
++	walk_use_def(visited, cur_node, cur_node->node);
++	pointer_set_destroy(visited);
++}
++
++enum precond {
++	NO_ATTRIBUTE_SEARCH, NO_CHECK_INSERT, NONE
++};
++
++/* If there is a mark_turn_off intentional attribute on the caller or the callee then there is no duplication and missing size_overflow attribute check anywhere.
++ * There is only missing size_overflow attribute checking if the intentional_overflow attribute is the mark_no type.
++ * Stmt duplication is unnecessary if there are no binary/ternary assignements or if the unary assignment isn't a cast.
++ * It skips the possible error codes too.
++ */
++static enum precond check_preconditions(struct interesting_node *cur_node)
++{
++	bool interesting_conditions[5] = {false, false, false, false, false};
++
++	set_last_nodes(cur_node);
++
++	check_intentional_attribute_ipa(cur_node);
++	if (cur_node->intentional_attr_decl == MARK_TURN_OFF || cur_node->intentional_attr_cur_fndecl == MARK_TURN_OFF)
++		return NO_ATTRIBUTE_SEARCH;
++
++	search_interesting_conditions(cur_node, interesting_conditions);
++
++	// error code: a phi, unary assign (not cast) and returns only
++	if (!interesting_conditions[NOT_UNARY] && interesting_conditions[PHI] && interesting_conditions[RET] && !interesting_conditions[CAST])
++		return NO_ATTRIBUTE_SEARCH;
++
++	// error code: def_stmts trace back to a constant and there are no binary/ternary assigments
++	if (interesting_conditions[CAST] && interesting_conditions[FROM_CONST] && !interesting_conditions[NOT_UNARY])
++		return NO_ATTRIBUTE_SEARCH;
++
++	// unnecessary overflow check
++	if (!interesting_conditions[CAST] && !interesting_conditions[NOT_UNARY])
++		return NO_CHECK_INSERT;
++
++	if (cur_node->intentional_attr_cur_fndecl != MARK_NO)
++		return NO_CHECK_INSERT;
++
++	return NONE;
++}
++
++static tree cast_to_orig_type(struct visited *visited, gimple stmt, const_tree orig_node, tree new_node)
++{
++	const_gimple assign;
++	tree orig_type = TREE_TYPE(orig_node);
++	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
++
++	assign = build_cast_stmt(visited, orig_type, new_node, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
++	return gimple_assign_lhs(assign);
++}
++
++static void change_orig_node(struct visited *visited, struct interesting_node *cur_node, tree new_node)
++{
++	void (*set_rhs)(gimple, tree);
++	gimple stmt = cur_node->first_stmt;
++	const_tree orig_node = cur_node->node;
++
++	switch (gimple_code(stmt)) {
++	case GIMPLE_RETURN:
++		gimple_return_set_retval(stmt, cast_to_orig_type(visited, stmt, orig_node, new_node));
++		break;
++	case GIMPLE_CALL:
++		gimple_call_set_arg(stmt, cur_node->num - 1, cast_to_orig_type(visited, stmt, orig_node, new_node));
++		break;
++	case GIMPLE_ASSIGN:
++		switch (cur_node->num) {
++		case 1:
++			set_rhs = &gimple_assign_set_rhs1;
++			break;
++		case 2:
++			set_rhs = &gimple_assign_set_rhs2;
++			break;
++#if BUILDING_GCC_VERSION >= 4006
++		case 3:
++			set_rhs = &gimple_assign_set_rhs3;
++			break;
++#endif
++		default:
++			gcc_unreachable();
++		}
++
++		set_rhs(stmt, cast_to_orig_type(visited, stmt, orig_node, new_node));
++		break;
++	default:
++		debug_gimple_stmt(stmt);
++		gcc_unreachable();
++	}
++
++	update_stmt(stmt);
++}
++
++static struct visited *create_visited(void)
++{
++	struct visited *new_node;
++
++	new_node = (struct visited *)xmalloc(sizeof(*new_node));
++	new_node->stmts = pointer_set_create();
++	new_node->my_stmts = pointer_set_create();
++	new_node->skip_expr_casts = pointer_set_create();
++	new_node->no_cast_check = pointer_set_create();
++	return new_node;
++}
++
++static void free_visited(struct visited *visited)
++{
++	pointer_set_destroy(visited->stmts);
++	pointer_set_destroy(visited->my_stmts);
++	pointer_set_destroy(visited->skip_expr_casts);
++	pointer_set_destroy(visited->no_cast_check);
++
++	free(visited);
++}
++
++/* This function calls the main recursion function (expand) that duplicates the stmts. Before that it checks the intentional_overflow attribute and asm stmts,
++ * it decides whether the duplication is necessary or not and it searches for missing size_overflow attributes. After expand() it changes the orig node to the duplicated node
++ * in the original stmt (first stmt) and it inserts the overflow check for the arg of the callee or for the return value.
++ */
++static struct next_cgraph_node *handle_interesting_stmt(struct visited *visited, struct next_cgraph_node *cnodes, struct interesting_node *cur_node, struct cgraph_node *caller_node)
++{
++	enum precond ret;
++	tree new_node, orig_node = cur_node->node;
++
++	ret = check_preconditions(cur_node);
++	if (ret == NO_ATTRIBUTE_SEARCH)
++		return cnodes;
++
++	cnodes = search_overflow_attribute(cnodes, cur_node);
++
++	if (ret == NO_CHECK_INSERT)
++		return cnodes;
++
++	new_node = expand(visited, caller_node, orig_node);
++	if (new_node == NULL_TREE)
++		return cnodes;
++
++	change_orig_node(visited, cur_node, new_node);
++	check_size_overflow(caller_node, cur_node->first_stmt, TREE_TYPE(new_node), new_node, orig_node, BEFORE_STMT);
++
++	return cnodes;
++}
++
++// Check visited_fns interesting nodes.
++static bool is_in_interesting_node(struct interesting_node *head, const_gimple first_stmt, const_tree node, unsigned int num)
++{
++	struct interesting_node *cur;
++
++	for (cur = head; cur; cur = cur->next) {
++		if (!operand_equal_p(node, cur->node, 0))
++			continue;
++		if (num != cur->num)
++			continue;
++		if (first_stmt == cur->first_stmt)
++			return true;
++	}
++	return false;
++}
++
++/* Create an interesting node. The ipa pass starts to duplicate from these stmts.
++   first_stmt: it is the call or assignment or ret stmt, change_orig_node() will change the original node (retval, or function arg) in this
++   last_nodes: they are the last stmts in the recursion (they haven't a def_stmt). They are useful in the missing size_overflow attribute check and
++               the intentional_overflow attribute check. They are collected by set_last_nodes().
++   num: arg count of a call stmt or 0 when it is a ret
++   node: the recursion starts from here, it is a call arg or a return value
++   fndecl: the fndecl of the interesting node when the node is an arg. it is the fndecl of the callee function otherwise it is the fndecl of the caller (current_function_fndecl) function.
++   intentional_attr_decl: intentional_overflow attribute of the callee function
++   intentional_attr_cur_fndecl: intentional_overflow attribute of the caller function
++   intentional_mark_from_gimple: the intentional overflow type of size_overflow asm stmt from gimple if it exists
++ */
++static struct interesting_node *create_new_interesting_node(struct interesting_node *head, gimple first_stmt, tree node, unsigned int num, gimple asm_stmt)
++{
++	struct interesting_node *new_node;
++	tree fndecl;
++	enum gimple_code code;
++
++	gcc_assert(node != NULL_TREE);
++	code = gimple_code(first_stmt);
++	gcc_assert(code == GIMPLE_CALL || code == GIMPLE_ASM || code == GIMPLE_ASSIGN || code == GIMPLE_RETURN);
++
++	if (num == CANNOT_FIND_ARG)
++		return head;
++
++	if (skip_types(node))
++		return head;
++
++	if (skip_asm(node))
++		return head;
++
++	if (is_gimple_call(first_stmt))
++		fndecl = gimple_call_fndecl(first_stmt);
++	else
++		fndecl = current_function_decl;
++
++	if (fndecl == NULL_TREE)
++		return head;
++
++	if (is_in_interesting_node(head, first_stmt, node, num))
++		return head;
++
++	new_node = (struct interesting_node *)xmalloc(sizeof(*new_node));
++
++	new_node->next = NULL;
++	new_node->first_stmt = first_stmt;
++#if BUILDING_GCC_VERSION <= 4007
++	new_node->last_nodes = VEC_alloc(tree, gc, VEC_LEN);
++#else
++	vec_alloc(new_node->last_nodes, VEC_LEN);
++#endif
++	new_node->num = num;
++	new_node->node = node;
++	new_node->fndecl = fndecl;
++	new_node->intentional_attr_decl = MARK_NO;
++	new_node->intentional_attr_cur_fndecl = MARK_NO;
++	new_node->intentional_mark_from_gimple = asm_stmt;
++
++	if (!head)
++		return new_node;
++
++	new_node->next = head;
++	return new_node;
++}
++
++/* Check the ret stmts in the functions on the next cgraph node list (these functions will be in the hash table and they are reachable from ipa).
++ * If the ret stmt is in the next cgraph node list then it's an interesting ret.
++ */
++static struct interesting_node *handle_stmt_by_cgraph_nodes_ret(struct interesting_node *head, gimple stmt, struct next_cgraph_node *next_node)
++{
++	struct next_cgraph_node *cur_node;
++	tree ret = gimple_return_retval(stmt);
++
++	if (ret == NULL_TREE)
++		return head;
++
++	for (cur_node = next_node; cur_node; cur_node = cur_node->next) {
++		if (!operand_equal_p(cur_node->callee_fndecl, DECL_ORIGIN(current_function_decl), 0))
++			continue;
++		if (cur_node->num == 0)
++			head = create_new_interesting_node(head, stmt, ret, 0, NOT_INTENTIONAL_ASM);
++	}
++
++	return head;
++}
++
++/* Check the call stmts in the functions on the next cgraph node list (these functions will be in the hash table and they are reachable from ipa).
++ * If the call stmt is in the next cgraph node list then it's an interesting call.
++ */
++static struct interesting_node *handle_stmt_by_cgraph_nodes_call(struct interesting_node *head, gimple stmt, struct next_cgraph_node *next_node)
++{
++	unsigned int argnum;
++	tree arg;
++	const_tree fndecl;
++	struct next_cgraph_node *cur_node;
++
++	fndecl = gimple_call_fndecl(stmt);
++	if (fndecl == NULL_TREE)
++		return head;
++
++	for (cur_node = next_node; cur_node; cur_node = cur_node->next) {
++		if (!operand_equal_p(cur_node->callee_fndecl, fndecl, 0))
++			continue;
++		argnum = get_correct_arg_count(cur_node->num, fndecl);
++		gcc_assert(argnum != CANNOT_FIND_ARG);
++		if (argnum == 0)
++			continue;
++
++		arg = gimple_call_arg(stmt, argnum - 1);
++		head = create_new_interesting_node(head, stmt, arg, argnum, NOT_INTENTIONAL_ASM);
++	}
++
++	return head;
++}
++
++static unsigned int check_ops(const_tree orig_node, const_tree node, unsigned int ret_count)
++{
++	if (!operand_equal_p(orig_node, node, 0))
++		return WRONG_NODE;
++	if (skip_types(node))
++		return WRONG_NODE;
++	return ret_count;
++}
++
++// Get the index of the rhs node in an assignment
++static unsigned int get_assign_ops_count(const_gimple stmt, tree node)
++{
++	const_tree rhs1, rhs2;
++	unsigned int ret;
++
++	gcc_assert(stmt);
++	gcc_assert(is_gimple_assign(stmt));
++
++	rhs1 = gimple_assign_rhs1(stmt);
++	gcc_assert(rhs1 != NULL_TREE);
++
++	switch (gimple_num_ops(stmt)) {
++	case 2:
++		return check_ops(node, rhs1, 1);
++	case 3:
++		ret = check_ops(node, rhs1, 1);
++		if (ret != WRONG_NODE)
++			return ret;
++
++		rhs2 = gimple_assign_rhs2(stmt);
++		gcc_assert(rhs2 != NULL_TREE);
++		return check_ops(node, rhs2, 2);
++	default:
++		gcc_unreachable();
++	}
++}
++
++// Find the correct arg number of a call stmt. It is needed when the interesting function is a cloned function.
++static unsigned int find_arg_number_gimple(const_tree arg, const_gimple stmt)
++{
++	unsigned int i;
++
++	if (gimple_call_fndecl(stmt) == NULL_TREE)
++		return CANNOT_FIND_ARG;
++
++	for (i = 0; i < gimple_call_num_args(stmt); i++) {
++		tree node;
++
++		node = gimple_call_arg(stmt, i);
++		if (!operand_equal_p(arg, node, 0))
++			continue;
++		if (!skip_types(node))
++			return i + 1;
++	}
++
++	return CANNOT_FIND_ARG;
++}
++
++/* starting from the size_overflow asm stmt collect interesting stmts. They can be
++ * any of return, call or assignment stmts (because of inlining).
++ */
++static struct interesting_node *get_interesting_ret_or_call(struct pointer_set_t *visited, struct interesting_node *head, tree node, gimple intentional_asm)
++{
++	use_operand_p use_p;
++	imm_use_iterator imm_iter;
++	unsigned int argnum;
++
++	gcc_assert(TREE_CODE(node) == SSA_NAME);
++
++	if (pointer_set_insert(visited, node))
++		return head;
++
++	FOR_EACH_IMM_USE_FAST(use_p, imm_iter, node) {
++		gimple stmt = USE_STMT(use_p);
++
++		if (stmt == NULL)
++			return head;
++		if (is_gimple_debug(stmt))
++			continue;
++
++		switch (gimple_code(stmt)) {
++		case GIMPLE_CALL:
++			argnum = find_arg_number_gimple(node, stmt);
++			head = create_new_interesting_node(head, stmt, node, argnum, intentional_asm);
++			break;
++		case GIMPLE_RETURN:
++			head = create_new_interesting_node(head, stmt, node, 0, intentional_asm);
++			break;
++		case GIMPLE_ASSIGN:
++			argnum = get_assign_ops_count(stmt, node);
++			head = create_new_interesting_node(head, stmt, node, argnum, intentional_asm);
++			break;
++		case GIMPLE_PHI: {
++			tree result = gimple_phi_result(stmt);
++			head = get_interesting_ret_or_call(visited, head, result, intentional_asm);
++			break;
++		}
++		case GIMPLE_ASM:
++			if (gimple_asm_noutputs(stmt) != 0)
++				break;
++			if (!is_size_overflow_asm(stmt))
++				break;
++			head = create_new_interesting_node(head, stmt, node, 1, intentional_asm);
++			break;
++		case GIMPLE_COND:
++		case GIMPLE_SWITCH:
++			break;
++		default:
++			debug_gimple_stmt(stmt);
++			gcc_unreachable();
++			break;
++		}
++	}
++	return head;
++}
++
++static void remove_size_overflow_asm(gimple stmt)
++{
++	gimple_stmt_iterator gsi;
++	tree input, output;
++
++	if (!is_size_overflow_asm(stmt))
++		return;
++
++	if (gimple_asm_noutputs(stmt) == 0) {
++		gsi = gsi_for_stmt(stmt);
++		ipa_remove_stmt_references(cgraph_get_create_node(current_function_decl), stmt);
++		gsi_remove(&gsi, true);
++		return;
++	}
++
++	input = gimple_asm_input_op(stmt, 0);
++	output = gimple_asm_output_op(stmt, 0);
++	replace_size_overflow_asm_with_assign(stmt, TREE_VALUE(output), TREE_VALUE(input));
++}
++
++/* handle the size_overflow asm stmts from the gimple pass and collect the interesting stmts.
++ * If the asm stmt is a parm_decl kind (noutputs == 0) then remove it.
++ * If it is a simple asm stmt then replace it with an assignment from the asm input to the asm output.
++ */
++static struct interesting_node *handle_stmt_by_size_overflow_asm(gimple stmt, struct interesting_node *head)
++{
++	const_tree output;
++	struct pointer_set_t *visited;
++	gimple intentional_asm = NOT_INTENTIONAL_ASM;
++
++	if (!is_size_overflow_asm(stmt))
++		return head;
++
++	if (is_size_overflow_intentional_asm_yes(stmt) || is_size_overflow_intentional_asm_turn_off(stmt))
++		intentional_asm = stmt;
++
++	gcc_assert(gimple_asm_ninputs(stmt) == 1);
++
++	if (gimple_asm_noutputs(stmt) == 0 && is_size_overflow_intentional_asm_turn_off(stmt))
++		return head;
++
++	if (gimple_asm_noutputs(stmt) == 0) {
++		const_tree input;
++
++		if (!is_size_overflow_intentional_asm_turn_off(stmt))
++			return head;
++
++		input = gimple_asm_input_op(stmt, 0);
++		remove_size_overflow_asm(stmt);
++		if (is_gimple_constant(TREE_VALUE(input)))
++			return head;
++		visited = pointer_set_create();
++		head = get_interesting_ret_or_call(visited, head, TREE_VALUE(input), intentional_asm);
++		pointer_set_destroy(visited);
++		return head;
++	}
++
++	if (!is_size_overflow_intentional_asm_yes(stmt) && !is_size_overflow_intentional_asm_turn_off(stmt))
++		remove_size_overflow_asm(stmt);
++
++	visited = pointer_set_create();
++	output = gimple_asm_output_op(stmt, 0);
++	head = get_interesting_ret_or_call(visited, head, TREE_VALUE(output), intentional_asm);
++	pointer_set_destroy(visited);
++	return head;
++}
++
++/* Iterate over all the stmts of a function and look for the size_overflow asm stmts (they were created in the gimple pass)
++ * or a call stmt or a return stmt and store them in the interesting_node list
++ */
++static struct interesting_node *collect_interesting_stmts(struct next_cgraph_node *next_node)
++{
++	basic_block bb;
++	struct interesting_node *head = NULL;
++
++	FOR_ALL_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			enum gimple_code code;
++			gimple stmt = gsi_stmt(gsi);
++
++			code = gimple_code(stmt);
++
++			if (code == GIMPLE_ASM)
++				head = handle_stmt_by_size_overflow_asm(stmt, head);
++
++			if (!next_node)
++				continue;
++			if (code == GIMPLE_CALL)
++				head = handle_stmt_by_cgraph_nodes_call(head, stmt, next_node);
++			if (code == GIMPLE_RETURN)
++				head = handle_stmt_by_cgraph_nodes_ret(head, stmt, next_node);
++		}
++	}
++	return head;
++}
++
++static void free_interesting_node(struct interesting_node *head)
++{
++	struct interesting_node *cur;
++
++	while (head) {
++		cur = head->next;
++#if BUILDING_GCC_VERSION <= 4007
++		VEC_free(tree, gc, head->last_nodes);
++#else
++		vec_free(head->last_nodes);
++#endif
++		free(head);
++		head = cur;
++	}
++}
++
++static struct visited_fns *insert_visited_fns_function(struct visited_fns *head, struct interesting_node *cur_node)
++{
++	struct visited_fns *new_visited_fns;
++
++	new_visited_fns = (struct visited_fns *)xmalloc(sizeof(*new_visited_fns));
++	new_visited_fns->fndecl = cur_node->fndecl;
++	new_visited_fns->num = cur_node->num;
++	new_visited_fns->first_stmt = cur_node->first_stmt;
++	new_visited_fns->next = NULL;
++
++	if (!head)
++		return new_visited_fns;
++
++	new_visited_fns->next = head;
++	return new_visited_fns;
++}
++
++/* Check whether the function was already visited_fns. If the fndecl, the arg count of the fndecl and the first_stmt (call or return) are same then
++ * it is a visited_fns function.
++ */
++static bool is_visited_fns_function(struct visited_fns *head, struct interesting_node *cur_node)
++{
++	struct visited_fns *cur;
++
++	if (!head)
++		return false;
++
++	for (cur = head; cur; cur = cur->next) {
++		if (cur_node->first_stmt != cur->first_stmt)
++			continue;
++		if (!operand_equal_p(cur_node->fndecl, cur->fndecl, 0))
++			continue;
++		if (cur_node->num == cur->num)
++			return true;
++	}
++	return false;
++}
++
++static void free_next_cgraph_node(struct next_cgraph_node *head)
++{
++	struct next_cgraph_node *cur;
++
++	while (head) {
++		cur = head->next;
++		free(head);
++		head = cur;
++	}
++}
++
++static void remove_all_size_overflow_asm(void)
++{
++	basic_block bb;
++
++	FOR_ALL_BB_FN(bb, cfun) {
++		gimple_stmt_iterator si;
++
++		for (si = gsi_start_bb(bb); !gsi_end_p(si); gsi_next(&si))
++			remove_size_overflow_asm(gsi_stmt(si));
++	}
++}
++
++/* Main recursive walk of the ipa pass: iterate over the collected interesting stmts in a function
++ * (they are interesting if they have an associated size_overflow asm stmt) and recursively walk
++ * the newly collected interesting functions (they are interesting if there is control flow between
++ * the interesting stmts and them).
++ */
++static struct visited_fns *handle_function(struct cgraph_node *node, struct next_cgraph_node *next_node, struct visited_fns *visited_fns)
++{
++	struct visited *visited;
++	struct interesting_node *head, *cur_node;
++	struct next_cgraph_node *cur_cnodes, *cnodes_head = NULL;
++
++	set_current_function_decl(NODE_DECL(node));
++	call_count = 0;
++
++	head = collect_interesting_stmts(next_node);
++
++	visited = create_visited();
++	for (cur_node = head; cur_node; cur_node = cur_node->next) {
++		if (is_visited_fns_function(visited_fns, cur_node))
++			continue;
++		cnodes_head = handle_interesting_stmt(visited, cnodes_head, cur_node, node);
++		visited_fns = insert_visited_fns_function(visited_fns, cur_node);
++	}
++
++	free_visited(visited);
++	free_interesting_node(head);
++	remove_all_size_overflow_asm();
++	unset_current_function_decl();
++
++	for (cur_cnodes = cnodes_head; cur_cnodes; cur_cnodes = cur_cnodes->next)
++		visited_fns = handle_function(cur_cnodes->current_function, cur_cnodes, visited_fns);
++
++	free_next_cgraph_node(cnodes_head);
++	return visited_fns;
++}
++
++static void free_visited_fns(struct visited_fns *head)
++{
++	struct visited_fns *cur;
++
++	while (head) {
++		cur = head->next;
++		free(head);
++		head = cur;
++	}
++}
++
++// Main entry point of the ipa pass: erases the plf flag of all stmts and iterates over all the functions
++unsigned int search_function(void)
++{
++	struct cgraph_node *node;
++	struct visited_fns *visited_fns = NULL;
++
++	FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) {
++		gcc_assert(cgraph_function_flags_ready);
++#if BUILDING_GCC_VERSION <= 4007
++		gcc_assert(node->reachable);
++#endif
++
++		visited_fns = handle_function(node, NULL, visited_fns);
++	}
++
++	free_visited_fns(visited_fns);
++	return 0;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data insert_size_overflow_check_data = {
++#else
++static struct ipa_opt_pass_d insert_size_overflow_check = {
++	.pass = {
++#endif
++		.type			= SIMPLE_IPA_PASS,
++		.name			= "size_overflow",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= search_function,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_remove_unused_locals | TODO_ggc_collect | TODO_verify_flow | TODO_dump_cgraph | TODO_dump_func | TODO_update_ssa_no_phi,
++#if BUILDING_GCC_VERSION < 4009
++	},
++	.generate_summary		= NULL,
++	.write_summary			= NULL,
++	.read_summary			= NULL,
++#if BUILDING_GCC_VERSION >= 4006
++	.write_optimization_summary	= NULL,
++	.read_optimization_summary	= NULL,
++#endif
++	.stmt_fixup			= NULL,
++	.function_transform_todo_flags_start		= 0,
++	.function_transform		= NULL,
++	.variable_transform		= NULL,
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++class insert_size_overflow_check : public ipa_opt_pass_d {
++public:
++	insert_size_overflow_check() : ipa_opt_pass_d(insert_size_overflow_check_data, g, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL) {}
++	unsigned int execute() { return search_function(); }
++};
++}
++#endif
++
++struct opt_pass *make_insert_size_overflow_check(void)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	return new insert_size_overflow_check();
++#else
++	return &insert_size_overflow_check.pass;
++#endif
++}
++
+diff --git a/tools/gcc/size_overflow_plugin/intentional_overflow.c b/tools/gcc/size_overflow_plugin/intentional_overflow.c
+new file mode 100644
+index 0000000..d71d72a
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/intentional_overflow.c
+@@ -0,0 +1,736 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++/* Get the param of the intentional_overflow attribute.
++ *   * 0: MARK_NOT_INTENTIONAL
++ *   * 1..MAX_PARAM: MARK_YES
++ *   * -1: MARK_TURN_OFF
++ */
++static tree get_attribute_param(const_tree decl)
++{
++	const_tree attr;
++
++	if (decl == NULL_TREE)
++		return NULL_TREE;
++
++	attr = lookup_attribute("intentional_overflow", DECL_ATTRIBUTES(decl));
++	if (!attr || !TREE_VALUE(attr))
++		return NULL_TREE;
++
++	return TREE_VALUE(attr);
++}
++
++// MARK_TURN_OFF
++bool is_turn_off_intentional_attr(const_tree decl)
++{
++	const_tree param_head;
++
++	param_head = get_attribute_param(decl);
++	if (param_head == NULL_TREE)
++		return false;
++
++	if (TREE_INT_CST_HIGH(TREE_VALUE(param_head)) == -1)
++		return true;
++	return false;
++}
++
++// MARK_NOT_INTENTIONAL
++bool is_end_intentional_intentional_attr(const_tree decl, unsigned int argnum)
++{
++	const_tree param_head;
++
++	if (argnum == 0)
++		return false;
++
++	param_head = get_attribute_param(decl);
++	if (param_head == NULL_TREE)
++		return false;
++
++	if (!TREE_INT_CST_LOW(TREE_VALUE(param_head)))
++		return true;
++	return false;
++}
++
++// MARK_YES
++bool is_yes_intentional_attr(const_tree decl, unsigned int argnum)
++{
++	tree param, param_head;
++
++	if (argnum == 0)
++		return false;
++
++	param_head = get_attribute_param(decl);
++	for (param = param_head; param; param = TREE_CHAIN(param))
++		if (argnum == TREE_INT_CST_LOW(TREE_VALUE(param)))
++			return true;
++	return false;
++}
++
++void print_missing_intentional(enum mark callee_attr, enum mark caller_attr, const_tree decl, unsigned int argnum)
++{
++	location_t loc;
++
++	if (caller_attr == MARK_NO || caller_attr == MARK_NOT_INTENTIONAL || caller_attr == MARK_TURN_OFF)
++		return;
++
++	if (callee_attr == MARK_NOT_INTENTIONAL || callee_attr == MARK_YES)
++		return;
++
++	loc = DECL_SOURCE_LOCATION(decl);
++	inform(loc, "The intentional_overflow attribute is missing from +%s+%u+", DECL_NAME_POINTER(decl), argnum);
++}
++
++// Get the field decl of a component ref for intentional_overflow checking
++static const_tree search_field_decl(const_tree comp_ref)
++{
++	const_tree field = NULL_TREE;
++	unsigned int i, len = TREE_OPERAND_LENGTH(comp_ref);
++
++	for (i = 0; i < len; i++) {
++		field = TREE_OPERAND(comp_ref, i);
++		if (TREE_CODE(field) == FIELD_DECL)
++			break;
++	}
++	gcc_assert(TREE_CODE(field) == FIELD_DECL);
++	return field;
++}
++
++/* Get the type of the intentional_overflow attribute of a node
++ *  * MARK_TURN_OFF
++ *  * MARK_YES
++ *  * MARK_NO
++ *  * MARK_NOT_INTENTIONAL
++ */
++enum mark get_intentional_attr_type(const_tree node)
++{
++	const_tree cur_decl;
++
++	if (node == NULL_TREE)
++		return MARK_NO;
++
++	switch (TREE_CODE(node)) {
++	case COMPONENT_REF:
++		cur_decl = search_field_decl(node);
++		if (is_turn_off_intentional_attr(cur_decl))
++			return MARK_TURN_OFF;
++		if (is_end_intentional_intentional_attr(cur_decl, 1))
++			return MARK_YES;
++		break;
++	case PARM_DECL: {
++		unsigned int argnum;
++
++		cur_decl = DECL_ORIGIN(current_function_decl);
++		argnum = find_arg_number_tree(node, cur_decl);
++		if (argnum == CANNOT_FIND_ARG)
++			return MARK_NO;
++		if (is_yes_intentional_attr(cur_decl, argnum))
++			return MARK_YES;
++		if (is_end_intentional_intentional_attr(cur_decl, argnum))
++			return MARK_NOT_INTENTIONAL;
++		break;
++	}
++	case FUNCTION_DECL:
++		if (is_turn_off_intentional_attr(DECL_ORIGIN(node)))
++			return MARK_TURN_OFF;
++		break;
++	default:
++		break;
++	}
++	return MARK_NO;
++}
++
++// Search for the intentional_overflow attribute on the last nodes
++static enum mark search_last_nodes_intentional(struct interesting_node *cur_node)
++{
++	unsigned int i;
++	tree last_node;
++	enum mark mark = MARK_NO;
++
++#if BUILDING_GCC_VERSION <= 4007
++	FOR_EACH_VEC_ELT(tree, cur_node->last_nodes, i, last_node) {
++#else
++	FOR_EACH_VEC_ELT(*cur_node->last_nodes, i, last_node) {
++#endif
++		mark = get_intentional_attr_type(last_node);
++		if (mark != MARK_NO)
++			break;
++	}
++	return mark;
++}
++
++/* Check the intentional kind of size_overflow asm stmt (created by the gimple pass) and
++ * set the appropriate intentional_overflow type. Delete the asm stmt in the end.
++ */
++static bool is_intentional_attribute_from_gimple(struct interesting_node *cur_node)
++{
++	if (!cur_node->intentional_mark_from_gimple)
++		return false;
++
++	if (is_size_overflow_intentional_asm_yes(cur_node->intentional_mark_from_gimple))
++		cur_node->intentional_attr_cur_fndecl = MARK_YES;
++	else
++		cur_node->intentional_attr_cur_fndecl = MARK_TURN_OFF;
++
++	// skip param decls
++	if (gimple_asm_noutputs(cur_node->intentional_mark_from_gimple) == 0)
++		return true;
++	return true;
++}
++
++/* Search intentional_overflow attribute on caller and on callee too.
++ * 0</MARK_YES: no dup, search size_overflow and intentional_overflow attributes
++ * 0/MARK_NOT_INTENTIONAL: no dup, search size_overflow attribute (int)
++ * -1/MARK_TURN_OFF: no dup, no search, current_function_decl -> no dup
++*/
++void check_intentional_attribute_ipa(struct interesting_node *cur_node)
++{
++	const_tree fndecl;
++
++	if (is_intentional_attribute_from_gimple(cur_node))
++		return;
++
++	if (is_turn_off_intentional_attr(DECL_ORIGIN(current_function_decl))) {
++		cur_node->intentional_attr_cur_fndecl = MARK_TURN_OFF;
++		return;
++	}
++
++	if (gimple_code(cur_node->first_stmt) == GIMPLE_ASM) {
++		cur_node->intentional_attr_cur_fndecl = MARK_NOT_INTENTIONAL;
++		return;
++	}
++
++	if (gimple_code(cur_node->first_stmt) == GIMPLE_ASSIGN)
++		return;
++
++	fndecl = get_interesting_orig_fndecl(cur_node->first_stmt, cur_node->num);
++	if (is_turn_off_intentional_attr(fndecl)) {
++		cur_node->intentional_attr_decl = MARK_TURN_OFF;
++		return;
++	}
++
++	if (is_end_intentional_intentional_attr(fndecl, cur_node->num))
++		cur_node->intentional_attr_decl = MARK_NOT_INTENTIONAL;
++	else if (is_yes_intentional_attr(fndecl, cur_node->num))
++		cur_node->intentional_attr_decl = MARK_YES;
++
++	cur_node->intentional_attr_cur_fndecl = search_last_nodes_intentional(cur_node);
++	print_missing_intentional(cur_node->intentional_attr_decl, cur_node->intentional_attr_cur_fndecl, cur_node->fndecl, cur_node->num);
++}
++
++bool is_a_cast_and_const_overflow(const_tree no_const_rhs)
++{
++	const_tree rhs1, lhs, rhs1_type, lhs_type;
++	enum machine_mode lhs_mode, rhs_mode;
++	gimple def_stmt = get_def_stmt(no_const_rhs);
++
++	if (!def_stmt || !gimple_assign_cast_p(def_stmt))
++		return false;
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	lhs = gimple_assign_lhs(def_stmt);
++	rhs1_type = TREE_TYPE(rhs1);
++	lhs_type = TREE_TYPE(lhs);
++	rhs_mode = TYPE_MODE(rhs1_type);
++	lhs_mode = TYPE_MODE(lhs_type);
++	if (TYPE_UNSIGNED(lhs_type) == TYPE_UNSIGNED(rhs1_type) || lhs_mode != rhs_mode)
++		return false;
++
++	return true;
++}
++
++static unsigned int uses_num(tree node)
++{
++	imm_use_iterator imm_iter;
++	use_operand_p use_p;
++	unsigned int num = 0;
++
++	FOR_EACH_IMM_USE_FAST(use_p, imm_iter, node) {
++		gimple use_stmt = USE_STMT(use_p);
++
++		if (use_stmt == NULL)
++			return num;
++		if (is_gimple_debug(use_stmt))
++			continue;
++		if (gimple_assign_cast_p(use_stmt) && is_size_overflow_type(gimple_assign_lhs(use_stmt)))
++			continue;
++		num++;
++	}
++	return num;
++}
++
++static bool no_uses(tree node)
++{
++	return !uses_num(node);
++}
++
++// 3.8.5 mm/page-writeback.c __ilog2_u64(): ret, uint + uintmax; uint -> int; int max
++bool is_const_plus_unsigned_signed_truncation(const_tree lhs)
++{
++	tree rhs1, lhs_type, rhs_type, rhs2, not_const_rhs;
++	gimple def_stmt = get_def_stmt(lhs);
++
++	if (!def_stmt || !gimple_assign_cast_p(def_stmt))
++		return false;
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs_type = TREE_TYPE(rhs1);
++	lhs_type = TREE_TYPE(lhs);
++	if (TYPE_UNSIGNED(lhs_type) || !TYPE_UNSIGNED(rhs_type))
++		return false;
++	if (TYPE_MODE(lhs_type) != TYPE_MODE(rhs_type))
++		return false;
++
++	def_stmt = get_def_stmt(rhs1);
++	if (!def_stmt || !is_gimple_assign(def_stmt) || gimple_num_ops(def_stmt) != 3)
++		return false;
++
++	if (gimple_assign_rhs_code(def_stmt) != PLUS_EXPR)
++		return false;
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs2 = gimple_assign_rhs2(def_stmt);
++	if (!is_gimple_constant(rhs1) && !is_gimple_constant(rhs2))
++		return false;
++
++	if (is_gimple_constant(rhs2))
++		not_const_rhs = rhs1;
++	else
++		not_const_rhs = rhs2;
++
++	return no_uses(not_const_rhs);
++}
++
++static bool is_lt_signed_type_max(const_tree rhs)
++{
++	const_tree new_type, type_max, type = TREE_TYPE(rhs);
++
++	if (!TYPE_UNSIGNED(type))
++		return true;
++
++	switch (TYPE_MODE(type)) {
++	case QImode:
++		new_type = intQI_type_node;
++		break;
++	case HImode:
++		new_type = intHI_type_node;
++		break;
++	case SImode:
++		new_type = intSI_type_node;
++		break;
++	case DImode:
++		new_type = intDI_type_node;
++		break;
++	default:
++		debug_tree((tree)type);
++		gcc_unreachable();
++	}
++
++	type_max = TYPE_MAX_VALUE(new_type);
++	if (!tree_int_cst_lt(type_max, rhs))
++		return true;
++
++	return false;
++}
++
++static bool is_gt_zero(const_tree rhs)
++{
++	const_tree type = TREE_TYPE(rhs);
++
++	if (TYPE_UNSIGNED(type))
++		return true;
++
++	if (!tree_int_cst_lt(rhs, integer_zero_node))
++		return true;
++
++	return false;
++}
++
++bool is_a_constant_overflow(const_gimple stmt, const_tree rhs)
++{
++	if (gimple_assign_rhs_code(stmt) == MIN_EXPR)
++		return false;
++	if (!is_gimple_constant(rhs))
++		return false;
++
++	// If the const is between 0 and the max value of the signed type of the same bitsize then there is no intentional overflow
++	if (is_lt_signed_type_max(rhs) && is_gt_zero(rhs))
++		return false;
++
++	return true;
++}
++
++static tree change_assign_rhs(struct visited *visited, gimple stmt, const_tree orig_rhs, tree new_rhs)
++{
++	gimple assign;
++	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
++	tree origtype = TREE_TYPE(orig_rhs);
++
++	gcc_assert(is_gimple_assign(stmt));
++
++	assign = build_cast_stmt(visited, origtype, new_rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
++	pointer_set_insert(visited->my_stmts, assign);
++	return gimple_assign_lhs(assign);
++}
++
++tree handle_intentional_overflow(struct visited *visited, struct cgraph_node *caller_node, bool check_overflow, gimple stmt, tree change_rhs, tree new_rhs2)
++{
++	tree new_rhs, orig_rhs;
++	void (*gimple_assign_set_rhs)(gimple, tree);
++	tree rhs1 = gimple_assign_rhs1(stmt);
++	tree rhs2 = gimple_assign_rhs2(stmt);
++	tree lhs = gimple_assign_lhs(stmt);
++
++	if (!check_overflow)
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++
++	if (change_rhs == NULL_TREE)
++		return create_assign(visited, stmt, lhs, AFTER_STMT);
++
++	if (new_rhs2 == NULL_TREE) {
++		orig_rhs = rhs1;
++		gimple_assign_set_rhs = &gimple_assign_set_rhs1;
++	} else {
++		orig_rhs = rhs2;
++		gimple_assign_set_rhs = &gimple_assign_set_rhs2;
++	}
++
++	check_size_overflow(caller_node, stmt, TREE_TYPE(change_rhs), change_rhs, orig_rhs, BEFORE_STMT);
++
++	new_rhs = change_assign_rhs(visited, stmt, orig_rhs, change_rhs);
++	gimple_assign_set_rhs(stmt, new_rhs);
++	update_stmt(stmt);
++
++	return create_assign(visited, stmt, lhs, AFTER_STMT);
++}
++
++static bool is_subtraction_special(struct visited *visited, const_gimple stmt)
++{
++	gimple rhs1_def_stmt, rhs2_def_stmt;
++	const_tree rhs1_def_stmt_rhs1, rhs2_def_stmt_rhs1, rhs1_def_stmt_lhs, rhs2_def_stmt_lhs;
++	enum machine_mode rhs1_def_stmt_rhs1_mode, rhs2_def_stmt_rhs1_mode, rhs1_def_stmt_lhs_mode, rhs2_def_stmt_lhs_mode;
++	const_tree rhs1 = gimple_assign_rhs1(stmt);
++	const_tree rhs2 = gimple_assign_rhs2(stmt);
++
++	if (is_gimple_constant(rhs1) || is_gimple_constant(rhs2))
++		return false;
++
++	gcc_assert(TREE_CODE(rhs1) == SSA_NAME && TREE_CODE(rhs2) == SSA_NAME);
++
++	if (gimple_assign_rhs_code(stmt) != MINUS_EXPR)
++		return false;
++
++	rhs1_def_stmt = get_def_stmt(rhs1);
++	rhs2_def_stmt = get_def_stmt(rhs2);
++	if (!gimple_assign_cast_p(rhs1_def_stmt) || !gimple_assign_cast_p(rhs2_def_stmt))
++		return false;
++
++	rhs1_def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
++	rhs2_def_stmt_rhs1 = gimple_assign_rhs1(rhs2_def_stmt);
++	rhs1_def_stmt_lhs = gimple_assign_lhs(rhs1_def_stmt);
++	rhs2_def_stmt_lhs = gimple_assign_lhs(rhs2_def_stmt);
++	rhs1_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_rhs1));
++	rhs2_def_stmt_rhs1_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_rhs1));
++	rhs1_def_stmt_lhs_mode = TYPE_MODE(TREE_TYPE(rhs1_def_stmt_lhs));
++	rhs2_def_stmt_lhs_mode = TYPE_MODE(TREE_TYPE(rhs2_def_stmt_lhs));
++	if (GET_MODE_BITSIZE(rhs1_def_stmt_rhs1_mode) <= GET_MODE_BITSIZE(rhs1_def_stmt_lhs_mode))
++		return false;
++	if (GET_MODE_BITSIZE(rhs2_def_stmt_rhs1_mode) <= GET_MODE_BITSIZE(rhs2_def_stmt_lhs_mode))
++		return false;
++
++	pointer_set_insert(visited->no_cast_check, rhs1_def_stmt);
++	pointer_set_insert(visited->no_cast_check, rhs2_def_stmt);
++	return true;
++}
++
++static gimple create_binary_assign(struct visited *visited, enum tree_code code, gimple stmt, tree rhs1, tree rhs2)
++{
++	gimple assign;
++	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
++	tree type = TREE_TYPE(rhs1);
++	tree lhs = create_new_var(type);
++
++	gcc_assert(types_compatible_p(type, TREE_TYPE(rhs2)));
++	assign = gimple_build_assign_with_ops(code, lhs, rhs1, rhs2);
++	gimple_assign_set_lhs(assign, make_ssa_name(lhs, assign));
++
++	gsi_insert_before(&gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++	pointer_set_insert(visited->my_stmts, assign);
++	return assign;
++}
++
++static tree cast_to_TI_type(struct visited *visited, gimple stmt, tree node)
++{
++	gimple_stmt_iterator gsi;
++	gimple cast_stmt;
++	tree type = TREE_TYPE(node);
++
++	if (types_compatible_p(type, intTI_type_node))
++		return node;
++
++	gsi = gsi_for_stmt(stmt);
++	cast_stmt = build_cast_stmt(visited, intTI_type_node, node, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
++	pointer_set_insert(visited->my_stmts, cast_stmt);
++	return gimple_assign_lhs(cast_stmt);
++}
++
++static tree get_def_stmt_rhs(struct visited *visited, const_tree var)
++{
++	tree rhs1, def_stmt_rhs1;
++	gimple rhs1_def_stmt, def_stmt_rhs1_def_stmt, def_stmt;
++
++	def_stmt = get_def_stmt(var);
++	if (!gimple_assign_cast_p(def_stmt))
++		return NULL_TREE;
++	gcc_assert(gimple_code(def_stmt) != GIMPLE_NOP && pointer_set_contains(visited->my_stmts, def_stmt) && gimple_assign_cast_p(def_stmt));
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	rhs1_def_stmt = get_def_stmt(rhs1);
++	if (!gimple_assign_cast_p(rhs1_def_stmt))
++		return rhs1;
++
++	def_stmt_rhs1 = gimple_assign_rhs1(rhs1_def_stmt);
++	def_stmt_rhs1_def_stmt = get_def_stmt(def_stmt_rhs1);
++
++	switch (gimple_code(def_stmt_rhs1_def_stmt)) {
++	case GIMPLE_CALL:
++	case GIMPLE_NOP:
++	case GIMPLE_ASM:
++	case GIMPLE_PHI:
++		return def_stmt_rhs1;
++	case GIMPLE_ASSIGN:
++		return rhs1;
++	default:
++		debug_gimple_stmt(def_stmt_rhs1_def_stmt);
++		gcc_unreachable();
++	}
++}
++
++tree handle_integer_truncation(struct visited *visited, struct cgraph_node *caller_node, const_tree lhs)
++{
++	tree new_rhs1, new_rhs2;
++	tree new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1, new_lhs;
++	gimple assign, stmt = get_def_stmt(lhs);
++	tree rhs1 = gimple_assign_rhs1(stmt);
++	tree rhs2 = gimple_assign_rhs2(stmt);
++
++	if (!is_subtraction_special(visited, stmt))
++		return NULL_TREE;
++
++	new_rhs1 = expand(visited, caller_node, rhs1);
++	new_rhs2 = expand(visited, caller_node, rhs2);
++
++	new_rhs1_def_stmt_rhs1 = get_def_stmt_rhs(visited, new_rhs1);
++	new_rhs2_def_stmt_rhs1 = get_def_stmt_rhs(visited, new_rhs2);
++
++	if (new_rhs1_def_stmt_rhs1 == NULL_TREE || new_rhs2_def_stmt_rhs1 == NULL_TREE)
++		return NULL_TREE;
++
++	if (!types_compatible_p(TREE_TYPE(new_rhs1_def_stmt_rhs1), TREE_TYPE(new_rhs2_def_stmt_rhs1))) {
++		new_rhs1_def_stmt_rhs1 = cast_to_TI_type(visited, stmt, new_rhs1_def_stmt_rhs1);
++		new_rhs2_def_stmt_rhs1 = cast_to_TI_type(visited, stmt, new_rhs2_def_stmt_rhs1);
++	}
++
++	assign = create_binary_assign(visited, MINUS_EXPR, stmt, new_rhs1_def_stmt_rhs1, new_rhs2_def_stmt_rhs1);
++	new_lhs = gimple_assign_lhs(assign);
++	check_size_overflow(caller_node, assign, TREE_TYPE(new_lhs), new_lhs, rhs1, AFTER_STMT);
++
++	return dup_assign(visited, stmt, lhs, new_rhs1, new_rhs2, NULL_TREE);
++}
++
++bool is_a_neg_overflow(const_gimple stmt, const_tree rhs)
++{
++	const_gimple def_stmt;
++
++	if (TREE_CODE(rhs) != SSA_NAME)
++		return false;
++
++	if (gimple_assign_rhs_code(stmt) != PLUS_EXPR)
++		return false;
++
++	def_stmt = get_def_stmt(rhs);
++	if (!is_gimple_assign(def_stmt) || gimple_assign_rhs_code(def_stmt) != BIT_NOT_EXPR)
++		return false;
++
++	return true;
++}
++
++/* e.g., drivers/acpi/acpica/utids.c acpi_ut_execute_CID()
++ * ((count - 1) * sizeof(struct acpi_pnp_dee_id_list) -> (count + fffffff) * 16
++ * fffffff * 16 > signed max -> truncate
++ */
++static bool look_for_mult_and_add(const_gimple stmt)
++{
++	const_tree res;
++	tree rhs1, rhs2, def_rhs1, def_rhs2, const_rhs, def_const_rhs;
++	const_gimple def_stmt;
++
++	if (!stmt || gimple_code(stmt) == GIMPLE_NOP)
++		return false;
++	if (!is_gimple_assign(stmt))
++		return false;
++	if (gimple_assign_rhs_code(stmt) != MULT_EXPR)
++		return false;
++
++	rhs1 = gimple_assign_rhs1(stmt);
++	rhs2 = gimple_assign_rhs2(stmt);
++	if (is_gimple_constant(rhs1)) {
++		const_rhs = rhs1;
++		def_stmt = get_def_stmt(rhs2);
++	} else if (is_gimple_constant(rhs2)) {
++		const_rhs = rhs2;
++		def_stmt = get_def_stmt(rhs1);
++	} else
++		return false;
++
++	if (!is_gimple_assign(def_stmt))
++		return false;
++
++	if (gimple_assign_rhs_code(def_stmt) != PLUS_EXPR && gimple_assign_rhs_code(def_stmt) != MINUS_EXPR)
++		return false;
++
++	def_rhs1 = gimple_assign_rhs1(def_stmt);
++	def_rhs2 = gimple_assign_rhs2(def_stmt);
++	if (is_gimple_constant(def_rhs1))
++		def_const_rhs = def_rhs1;
++	else if (is_gimple_constant(def_rhs2))
++		def_const_rhs = def_rhs2;
++	else
++		return false;
++
++	res = fold_binary_loc(gimple_location(def_stmt), MULT_EXPR, TREE_TYPE(const_rhs), const_rhs, def_const_rhs);
++	if (is_lt_signed_type_max(res) && is_gt_zero(res))
++		return false;
++	return true;
++}
++
++enum intentional_overflow_type add_mul_intentional_overflow(const_gimple stmt)
++{
++	const_gimple def_stmt_1, def_stmt_2;
++	const_tree rhs1, rhs2;
++	bool add_mul_rhs1, add_mul_rhs2;
++
++	rhs1 = gimple_assign_rhs1(stmt);
++	def_stmt_1 = get_def_stmt(rhs1);
++	add_mul_rhs1 = look_for_mult_and_add(def_stmt_1);
++
++	rhs2 = gimple_assign_rhs2(stmt);
++	def_stmt_2 = get_def_stmt(rhs2);
++	add_mul_rhs2 = look_for_mult_and_add(def_stmt_2);
++
++	if (add_mul_rhs1)
++		return RHS1_INTENTIONAL_OVERFLOW;
++	if (add_mul_rhs2)
++		return RHS2_INTENTIONAL_OVERFLOW;
++	return NO_INTENTIONAL_OVERFLOW;
++}
++
++static gimple get_dup_stmt(struct visited *visited, gimple stmt)
++{
++	gimple my_stmt;
++	gimple_stmt_iterator gsi = gsi_for_stmt(stmt);
++
++	gsi_next(&gsi);
++	my_stmt = gsi_stmt(gsi);
++
++	gcc_assert(pointer_set_contains(visited->my_stmts, my_stmt));
++	gcc_assert(gimple_assign_rhs_code(stmt) == gimple_assign_rhs_code(my_stmt));
++
++	return my_stmt;
++}
++
++/* unsigned type -> unary or binary assign (rhs1 or rhs2 is constant)
++ * unsigned type cast to signed type, unsigned type: no more uses
++ * e.g., lib/vsprintf.c:simple_strtol()
++ * _10 = (unsigned long int) _9
++ * _11 = -_10;
++ * _12 = (long int) _11; (_11_ no more uses)
++ */
++static bool is_call_or_cast(gimple stmt)
++{
++	return gimple_assign_cast_p(stmt) || is_gimple_call(stmt);
++}
++
++static bool is_unsigned_cast_or_call_def_stmt(const_tree node)
++{
++	const_tree rhs;
++	gimple def_stmt;
++
++	if (node == NULL_TREE)
++		return true;
++	if (is_gimple_constant(node))
++		return true;
++
++	def_stmt = get_def_stmt(node);
++	if (!def_stmt)
++		return false;
++
++	if (is_call_or_cast(def_stmt))
++		return true;
++
++	if (!is_gimple_assign(def_stmt) || gimple_num_ops(def_stmt) != 2)
++		return false;
++	rhs = gimple_assign_rhs1(def_stmt);
++	def_stmt = get_def_stmt(rhs);
++	if (!def_stmt)
++		return false;
++	return is_call_or_cast(def_stmt);
++}
++
++void unsigned_signed_cast_intentional_overflow(struct visited *visited, gimple stmt)
++{
++	unsigned int use_num;
++	gimple so_stmt;
++	const_gimple def_stmt;
++	const_tree rhs1, rhs2;
++	tree rhs = gimple_assign_rhs1(stmt);
++	tree lhs_type = TREE_TYPE(gimple_assign_lhs(stmt));
++	const_tree rhs_type = TREE_TYPE(rhs);
++
++	if (!(TYPE_UNSIGNED(rhs_type) && !TYPE_UNSIGNED(lhs_type)))
++		return;
++	if (GET_MODE_BITSIZE(TYPE_MODE(rhs_type)) != GET_MODE_BITSIZE(TYPE_MODE(lhs_type)))
++		return;
++	use_num = uses_num(rhs);
++	if (use_num != 1)
++		return;
++
++	def_stmt = get_def_stmt(rhs);
++	if (!def_stmt)
++		return;
++	if (!is_gimple_assign(def_stmt))
++		return;
++
++	rhs1 = gimple_assign_rhs1(def_stmt);
++	if (!is_unsigned_cast_or_call_def_stmt(rhs1))
++		return;
++
++	rhs2 = gimple_assign_rhs2(def_stmt);
++	if (!is_unsigned_cast_or_call_def_stmt(rhs2))
++		return;
++	if (gimple_num_ops(def_stmt) == 3 && !is_gimple_constant(rhs1) && !is_gimple_constant(rhs2))
++		return;
++
++	so_stmt = get_dup_stmt(visited, stmt);
++	create_up_and_down_cast(visited, so_stmt, lhs_type, gimple_assign_rhs1(so_stmt));
++}
++
+diff --git a/tools/gcc/size_overflow_plugin/misc.c b/tools/gcc/size_overflow_plugin/misc.c
+new file mode 100644
+index 0000000..4bddad2
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/misc.c
+@@ -0,0 +1,203 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++void set_current_function_decl(tree fndecl)
++{
++	gcc_assert(fndecl != NULL_TREE);
++
++	push_cfun(DECL_STRUCT_FUNCTION(fndecl));
++	calculate_dominance_info(CDI_DOMINATORS);
++	current_function_decl = fndecl;
++}
++
++void unset_current_function_decl(void)
++{
++	free_dominance_info(CDI_DOMINATORS);
++	pop_cfun();
++	current_function_decl = NULL_TREE;
++}
++
++static bool is_bool(const_tree node)
++{
++	const_tree type;
++
++	if (node == NULL_TREE)
++		return false;
++
++	type = TREE_TYPE(node);
++	if (!INTEGRAL_TYPE_P(type))
++		return false;
++	if (TREE_CODE(type) == BOOLEAN_TYPE)
++		return true;
++	if (TYPE_PRECISION(type) == 1)
++		return true;
++	return false;
++}
++
++bool skip_types(const_tree var)
++{
++	tree type;
++	enum tree_code code;
++
++	if (is_gimple_constant(var))
++		return true;
++
++	switch (TREE_CODE(var)) {
++		case ADDR_EXPR:
++#if BUILDING_GCC_VERSION >= 4006
++		case MEM_REF:
++#endif
++		case ARRAY_REF:
++		case BIT_FIELD_REF:
++		case INDIRECT_REF:
++		case TARGET_MEM_REF:
++		case COMPONENT_REF:
++		case VAR_DECL:
++		case VIEW_CONVERT_EXPR:
++			return true;
++		default:
++			break;
++	}
++
++	code = TREE_CODE(var);
++	gcc_assert(code == SSA_NAME || code == PARM_DECL);
++
++	type = TREE_TYPE(var);
++	switch (TREE_CODE(type)) {
++		case INTEGER_TYPE:
++		case ENUMERAL_TYPE:
++			return false;
++		case BOOLEAN_TYPE:
++			return is_bool(var);
++		default:
++			return true;
++	}
++}
++
++gimple get_def_stmt(const_tree node)
++{
++	gcc_assert(node != NULL_TREE);
++
++	if (skip_types(node))
++		return NULL;
++
++	if (TREE_CODE(node) != SSA_NAME)
++		return NULL;
++	return SSA_NAME_DEF_STMT(node);
++}
++
++tree create_new_var(tree type)
++{
++	tree new_var = create_tmp_var(type, "cicus");
++
++	add_referenced_var(new_var);
++	return new_var;
++}
++
++static bool skip_cast(tree dst_type, const_tree rhs, bool force)
++{
++	const_gimple def_stmt = get_def_stmt(rhs);
++
++	if (force)
++		return false;
++
++	if (is_gimple_constant(rhs))
++		return false;
++
++	if (!def_stmt || gimple_code(def_stmt) == GIMPLE_NOP)
++		return false;
++
++	if (!types_compatible_p(dst_type, TREE_TYPE(rhs)))
++		return false;
++
++	// DI type can be on 32 bit (from create_assign) but overflow type stays DI
++	if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode))
++		return false;
++
++	return true;
++}
++
++tree cast_a_tree(tree type, tree var)
++{
++	gcc_assert(type != NULL_TREE);
++	gcc_assert(var != NULL_TREE);
++	gcc_assert(fold_convertible_p(type, var));
++
++	return fold_convert(type, var);
++}
++
++gimple build_cast_stmt(struct visited *visited, tree dst_type, tree rhs, tree lhs, gimple_stmt_iterator *gsi, bool before, bool force)
++{
++	gimple assign, def_stmt;
++
++	gcc_assert(dst_type != NULL_TREE && rhs != NULL_TREE);
++	gcc_assert(!is_gimple_constant(rhs));
++	if (gsi_end_p(*gsi) && before == AFTER_STMT)
++		gcc_unreachable();
++
++	def_stmt = get_def_stmt(rhs);
++	if (def_stmt && gimple_code(def_stmt) != GIMPLE_NOP && skip_cast(dst_type, rhs, force) && pointer_set_contains(visited->my_stmts, def_stmt))
++		return def_stmt;
++
++	if (lhs == CREATE_NEW_VAR)
++		lhs = create_new_var(dst_type);
++
++	assign = gimple_build_assign(lhs, cast_a_tree(dst_type, rhs));
++
++	if (!gsi_end_p(*gsi)) {
++		location_t loc = gimple_location(gsi_stmt(*gsi));
++		gimple_set_location(assign, loc);
++	}
++
++	gimple_assign_set_lhs(assign, make_ssa_name(lhs, assign));
++
++	if (before)
++		gsi_insert_before(gsi, assign, GSI_NEW_STMT);
++	else
++		gsi_insert_after(gsi, assign, GSI_NEW_STMT);
++	update_stmt(assign);
++	return assign;
++}
++
++bool is_size_overflow_type(const_tree var)
++{
++	const char *name;
++	const_tree type_name, type;
++
++	if (var == NULL_TREE)
++		return false;
++
++	type = TREE_TYPE(var);
++	type_name = TYPE_NAME(type);
++	if (type_name == NULL_TREE)
++		return false;
++
++	if (DECL_P(type_name))
++		name = DECL_NAME_POINTER(type_name);
++	else
++		name = IDENTIFIER_POINTER(type_name);
++
++	if (!strncmp(name, "size_overflow_type", 18))
++		return true;
++	return false;
++}
++
+diff --git a/tools/gcc/size_overflow_plugin/remove_unnecessary_dup.c b/tools/gcc/size_overflow_plugin/remove_unnecessary_dup.c
+new file mode 100644
+index 0000000..7c9e6d1
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/remove_unnecessary_dup.c
+@@ -0,0 +1,138 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++bool skip_expr_on_double_type(const_gimple stmt)
++{
++	enum tree_code code = gimple_assign_rhs_code(stmt);
++
++	switch (code) {
++	case RSHIFT_EXPR:
++	case TRUNC_DIV_EXPR:
++	case CEIL_DIV_EXPR:
++	case FLOOR_DIV_EXPR:
++	case ROUND_DIV_EXPR:
++	case EXACT_DIV_EXPR:
++	case RDIV_EXPR:
++	case TRUNC_MOD_EXPR:
++	case CEIL_MOD_EXPR:
++	case FLOOR_MOD_EXPR:
++	case ROUND_MOD_EXPR:
++		return true;
++	default:
++		return false;
++	}
++}
++
++void create_up_and_down_cast(struct visited *visited, gimple use_stmt, tree orig_type, tree rhs)
++{
++	const_tree orig_rhs1;
++	tree down_lhs, new_lhs, dup_type = TREE_TYPE(rhs);
++	gimple down_cast, up_cast;
++	gimple_stmt_iterator gsi = gsi_for_stmt(use_stmt);
++
++	down_cast = build_cast_stmt(visited, orig_type, rhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
++	down_lhs = gimple_assign_lhs(down_cast);
++
++	gsi = gsi_for_stmt(use_stmt);
++	up_cast = build_cast_stmt(visited, dup_type, down_lhs, CREATE_NEW_VAR, &gsi, BEFORE_STMT, false);
++	new_lhs = gimple_assign_lhs(up_cast);
++
++	orig_rhs1 = gimple_assign_rhs1(use_stmt);
++	if (operand_equal_p(orig_rhs1, rhs, 0))
++		gimple_assign_set_rhs1(use_stmt, new_lhs);
++	else
++		gimple_assign_set_rhs2(use_stmt, new_lhs);
++	update_stmt(use_stmt);
++
++	pointer_set_insert(visited->my_stmts, up_cast);
++	pointer_set_insert(visited->my_stmts, down_cast);
++	pointer_set_insert(visited->skip_expr_casts, up_cast);
++	pointer_set_insert(visited->skip_expr_casts, down_cast);
++}
++
++static tree get_proper_unsigned_half_type(const_tree node)
++{
++	tree new_type, type;
++
++	gcc_assert(is_size_overflow_type(node));
++
++	type = TREE_TYPE(node);
++	switch (TYPE_MODE(type)) {
++	case HImode:
++		new_type = unsigned_intQI_type_node;
++		break;
++	case SImode:
++		new_type = unsigned_intHI_type_node;
++		break;
++	case DImode:
++		new_type = unsigned_intSI_type_node;
++		break;
++	case TImode:
++		new_type = unsigned_intDI_type_node;
++		break;
++	default:
++		gcc_unreachable();
++	}
++
++	if (TYPE_QUALS(type) != 0)
++		return build_qualified_type(new_type, TYPE_QUALS(type));
++	return new_type;
++}
++
++static void insert_cast_rhs(struct visited *visited, gimple stmt, tree rhs)
++{
++	tree type;
++
++	if (rhs == NULL_TREE)
++		return;
++	if (!is_size_overflow_type(rhs))
++		return;
++
++	type = get_proper_unsigned_half_type(rhs);
++	if (is_gimple_constant(rhs))
++		return;
++	create_up_and_down_cast(visited, stmt, type, rhs);
++}
++
++static void insert_cast(struct visited *visited, gimple stmt, tree rhs)
++{
++	if (LONG_TYPE_SIZE == GET_MODE_BITSIZE(SImode) && !is_size_overflow_type(rhs))
++		return;
++	gcc_assert(is_size_overflow_type(rhs));
++	insert_cast_rhs(visited, stmt, rhs);
++}
++
++void insert_cast_expr(struct visited *visited, gimple stmt, enum intentional_overflow_type type)
++{
++	tree rhs1, rhs2;
++
++	if (type == NO_INTENTIONAL_OVERFLOW || type == RHS1_INTENTIONAL_OVERFLOW) {
++		rhs1 = gimple_assign_rhs1(stmt);
++		insert_cast(visited, stmt, rhs1);
++	}
++
++	if (type == NO_INTENTIONAL_OVERFLOW || type == RHS2_INTENTIONAL_OVERFLOW) {
++		rhs2 = gimple_assign_rhs2(stmt);
++		insert_cast(visited, stmt, rhs2);
++	}
++}
++
+diff --git a/tools/gcc/size_overflow_plugin/size_overflow.h b/tools/gcc/size_overflow_plugin/size_overflow.h
+new file mode 100644
+index 0000000..37f8fc3
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/size_overflow.h
+@@ -0,0 +1,127 @@
++#ifndef SIZE_OVERFLOW_H
++#define SIZE_OVERFLOW_H
++
++#define CREATE_NEW_VAR NULL_TREE
++#define CANNOT_FIND_ARG 32
++#define MAX_PARAM 31
++#define BEFORE_STMT true
++#define AFTER_STMT false
++
++#define TURN_OFF_ASM_STR "# size_overflow MARK_TURN_OFF "
++#define YES_ASM_STR "# size_overflow MARK_YES "
++#define OK_ASM_STR "# size_overflow "
++
++enum mark {
++	MARK_NO, MARK_YES, MARK_NOT_INTENTIONAL, MARK_TURN_OFF
++};
++
++enum intentional_overflow_type {
++	NO_INTENTIONAL_OVERFLOW, RHS1_INTENTIONAL_OVERFLOW, RHS2_INTENTIONAL_OVERFLOW
++};
++
++struct visited {
++	struct pointer_set_t *stmts;
++	struct pointer_set_t *my_stmts;
++	struct pointer_set_t *skip_expr_casts;
++	struct pointer_set_t *no_cast_check;
++};
++
++// size_overflow_plugin.c
++extern GTY(()) tree report_size_overflow_decl;
++extern GTY(()) tree size_overflow_type_HI;
++extern GTY(()) tree size_overflow_type_SI;
++extern GTY(()) tree size_overflow_type_DI;
++extern GTY(()) tree size_overflow_type_TI;
++
++
++// size_overflow_plugin_hash.c
++struct size_overflow_hash {
++	const struct size_overflow_hash * const next;
++	const char * const name;
++	const unsigned int param;
++};
++
++struct interesting_node {
++	struct interesting_node *next;
++	gimple first_stmt;
++	const_tree fndecl;
++	tree node;
++#if BUILDING_GCC_VERSION <= 4007
++	VEC(tree, gc) *last_nodes;
++#else
++	vec<tree, va_gc> *last_nodes;
++#endif
++	unsigned int num;
++	enum mark intentional_attr_decl;
++	enum mark intentional_attr_cur_fndecl;
++	gimple intentional_mark_from_gimple;
++};
++
++extern bool is_size_overflow_asm(const_gimple stmt);
++extern unsigned int get_function_num(const_tree node, const_tree orig_fndecl);
++extern unsigned int get_correct_arg_count(unsigned int argnum, const_tree fndecl);
++extern bool is_missing_function(const_tree orig_fndecl, unsigned int num);
++extern bool is_a_return_check(const_tree node);
++extern const struct size_overflow_hash *get_function_hash(const_tree fndecl);
++extern unsigned int find_arg_number_tree(const_tree arg, const_tree func);
++
++
++// size_overflow_debug.c
++extern struct opt_pass *make_dump_pass(void);
++
++
++// intentional_overflow.c
++extern enum mark get_intentional_attr_type(const_tree node);
++extern bool is_size_overflow_intentional_asm_yes(const_gimple stmt);
++extern bool is_size_overflow_intentional_asm_turn_off(const_gimple stmt);
++extern bool is_end_intentional_intentional_attr(const_tree decl, unsigned int argnum);
++extern bool is_yes_intentional_attr(const_tree decl, unsigned int argnum);
++extern bool is_turn_off_intentional_attr(const_tree decl);
++extern void print_missing_intentional(enum mark callee_attr, enum mark caller_attr, const_tree decl, unsigned int argnum);
++extern void check_intentional_attribute_ipa(struct interesting_node *cur_node);
++extern bool is_a_cast_and_const_overflow(const_tree no_const_rhs);
++extern bool is_const_plus_unsigned_signed_truncation(const_tree lhs);
++extern bool is_a_constant_overflow(const_gimple stmt, const_tree rhs);
++extern tree handle_intentional_overflow(struct visited *visited, struct cgraph_node *caller_node, bool check_overflow, gimple stmt, tree change_rhs, tree new_rhs2);
++extern tree handle_integer_truncation(struct visited *visited, struct cgraph_node *caller_node, const_tree lhs);
++extern bool is_a_neg_overflow(const_gimple stmt, const_tree rhs);
++extern enum intentional_overflow_type add_mul_intentional_overflow(const_gimple def_stmt);
++extern void unsigned_signed_cast_intentional_overflow(struct visited *visited, gimple stmt);
++
++
++// insert_size_overflow_check_ipa.c
++extern unsigned int search_function(void);
++extern unsigned int call_count;
++extern struct opt_pass *make_insert_size_overflow_check(void);
++extern const_tree get_interesting_orig_fndecl(const_gimple stmt, unsigned int argnum);
++
++
++// insert_size_overflow_asm.c
++extern struct opt_pass *make_insert_size_overflow_asm_pass(void);
++
++
++// misc.c
++extern void set_current_function_decl(tree fndecl);
++extern void unset_current_function_decl(void);
++extern gimple get_def_stmt(const_tree node);
++extern tree create_new_var(tree type);
++extern gimple build_cast_stmt(struct visited *visited, tree dst_type, tree rhs, tree lhs, gimple_stmt_iterator *gsi, bool before, bool force);
++extern bool skip_types(const_tree var);
++extern tree cast_a_tree(tree type, tree var);
++extern bool is_size_overflow_type(const_tree var);
++
++
++// insert_size_overflow_check_core.c
++extern tree expand(struct visited *visited, struct cgraph_node *caller_node, tree lhs);
++extern void check_size_overflow(struct cgraph_node *caller_node, gimple stmt, tree size_overflow_type, tree cast_rhs, tree rhs, bool before);
++extern tree dup_assign(struct visited *visited, gimple oldstmt, const_tree node, tree rhs1, tree rhs2, tree __unused rhs3);
++extern tree create_assign(struct visited *visited, gimple oldstmt, tree rhs1, bool before);
++
++
++// remove_unnecessary_dup.c
++extern struct opt_pass *make_remove_unnecessary_dup_pass(void);
++extern void insert_cast_expr(struct visited *visited, gimple stmt, enum intentional_overflow_type type);
++extern bool skip_expr_on_double_type(const_gimple stmt);
++extern void create_up_and_down_cast(struct visited *visited, gimple use_stmt, tree orig_type, tree rhs);
++
++#endif
+diff --git a/tools/gcc/size_overflow_plugin/size_overflow_debug.c b/tools/gcc/size_overflow_plugin/size_overflow_debug.c
+new file mode 100644
+index 0000000..4378111
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/size_overflow_debug.c
+@@ -0,0 +1,116 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++
++static unsigned int dump_functions(void)
++{
++	struct cgraph_node *node;
++
++	FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) {
++		basic_block bb;
++
++		push_cfun(DECL_STRUCT_FUNCTION(NODE_DECL(node)));
++		current_function_decl = NODE_DECL(node);
++
++		fprintf(stderr, "-----------------------------------------\n%s\n-----------------------------------------\n", DECL_NAME_POINTER(current_function_decl));
++
++		FOR_ALL_BB_FN(bb, cfun) {
++			gimple_stmt_iterator si;
++
++			fprintf(stderr, "<bb %u>:\n", bb->index);
++			for (si = gsi_start_phis(bb); !gsi_end_p(si); gsi_next(&si))
++				debug_gimple_stmt(gsi_stmt(si));
++			for (si = gsi_start_bb(bb); !gsi_end_p(si); gsi_next(&si))
++				debug_gimple_stmt(gsi_stmt(si));
++			fprintf(stderr, "\n");
++		}
++
++		fprintf(stderr, "-------------------------------------------------------------------------\n");
++
++		pop_cfun();
++		current_function_decl = NULL_TREE;
++	}
++
++	fprintf(stderr, "###############################################################################\n");
++
++	return 0;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data dump_pass_data = {
++#else
++static struct ipa_opt_pass_d dump_pass = {
++	.pass = {
++#endif
++		.type			= SIMPLE_IPA_PASS,
++		.name			= "dump",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= dump_functions,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= 0,
++#if BUILDING_GCC_VERSION < 4009
++	},
++	.generate_summary		= NULL,
++	.write_summary			= NULL,
++	.read_summary			= NULL,
++#if BUILDING_GCC_VERSION >= 4006
++	.write_optimization_summary	= NULL,
++	.read_optimization_summary	= NULL,
++#endif
++	.stmt_fixup			= NULL,
++	.function_transform_todo_flags_start		= 0,
++	.function_transform		= NULL,
++	.variable_transform		= NULL,
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++class dump_pass : public ipa_opt_pass_d {
++public:
++	dump_pass() : ipa_opt_pass_d(dump_pass_data, g, NULL, NULL, NULL, NULL, NULL, NULL, 0, NULL, NULL) {}
++	unsigned int execute() { return dump_functions(); }
++};
++}
++#endif
++
++struct opt_pass *make_dump_pass(void)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	return new dump_pass();
++#else
++	return &dump_pass.pass;
++#endif
++}
+diff --git a/tools/gcc/size_overflow_plugin/size_overflow_hash.data b/tools/gcc/size_overflow_plugin/size_overflow_hash.data
+new file mode 100644
+index 0000000..51560ee
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/size_overflow_hash.data
+@@ -0,0 +1,6061 @@
++intel_fake_agp_alloc_by_type_1 intel_fake_agp_alloc_by_type 1 1 NULL
++ocfs2_get_refcount_tree_3 ocfs2_get_refcount_tree 0 3 NULL
++storvsc_connect_to_vsp_22 storvsc_connect_to_vsp 2 22 NULL
++compat_sock_setsockopt_23 compat_sock_setsockopt 5 23 NULL
++carl9170_alloc_27 carl9170_alloc 1 27 NULL
++sel_read_policyvers_55 sel_read_policyvers 3 55 NULL nohasharray
++padzero_55 padzero 1 55 &sel_read_policyvers_55
++cfg80211_disconnected_57 cfg80211_disconnected 4 57 NULL
++__skb_to_sgvec_72 __skb_to_sgvec 0 72 NULL
++snd_korg1212_copy_to_92 snd_korg1212_copy_to 6 92 NULL
++load_msg_95 load_msg 2 95 NULL
++ipath_verbs_send_117 ipath_verbs_send 5-3 117 NULL
++init_q_132 init_q 4 132 NULL
++memstick_alloc_host_142 memstick_alloc_host 1 142 NULL
++gfs2_glock_get_147 gfs2_glock_get 0 147 NULL
++hva_to_gfn_memslot_149 hva_to_gfn_memslot 0-1 149 NULL
++ping_v6_sendmsg_152 ping_v6_sendmsg 4 152 NULL
++ext4_ext_get_actual_len_153 ext4_ext_get_actual_len 0 153 NULL nohasharray
++tracing_trace_options_write_153 tracing_trace_options_write 3 153 &ext4_ext_get_actual_len_153
++pci_request_selected_regions_169 pci_request_selected_regions 0 169 NULL
++xfs_buf_item_get_format_189 xfs_buf_item_get_format 2 189 NULL
++xfs_bmap_btalloc_192 xfs_bmap_btalloc 0 192 NULL
++iscsi_session_setup_196 iscsi_session_setup 4-5 196 NULL
++ll_xattr_cache_seq_write_250 ll_xattr_cache_seq_write 3 250 NULL
++br_port_info_size_268 br_port_info_size 0 268 NULL
++generic_file_direct_write_291 generic_file_direct_write 0 291 NULL
++read_file_war_stats_292 read_file_war_stats 3 292 NULL
++xfs_zero_last_block_298 xfs_zero_last_block 0 298 NULL
++SYSC_connect_304 SYSC_connect 3 304 NULL
++syslog_print_307 syslog_print 2 307 NULL
++dn_setsockopt_314 dn_setsockopt 5 314 NULL
++mlx5_core_access_reg_361 mlx5_core_access_reg 3-5 361 NULL
++aio_read_events_ring_410 aio_read_events_ring 3-0 410 NULL
++lbs_rdmac_read_418 lbs_rdmac_read 3 418 NULL
++snd_ca0106_ptr_read_467 snd_ca0106_ptr_read 0 467 NULL
++cfs_trace_set_debug_mb_usrstr_486 cfs_trace_set_debug_mb_usrstr 2 486 NULL
++nvme_trans_modesel_data_488 nvme_trans_modesel_data 4 488 NULL
++iwl_dbgfs_protection_mode_write_502 iwl_dbgfs_protection_mode_write 3 502 NULL
++rx_rx_defrag_end_read_505 rx_rx_defrag_end_read 3 505 NULL
++ocfs2_validate_meta_ecc_bhs_527 ocfs2_validate_meta_ecc_bhs 0 527 NULL
++zlib_deflate_workspacesize_537 zlib_deflate_workspacesize 0-1-2 537 NULL
++iwl_dbgfs_wowlan_sram_read_540 iwl_dbgfs_wowlan_sram_read 3 540 NULL
++sco_sock_setsockopt_552 sco_sock_setsockopt 5 552 NULL
++lpfc_nlp_state_name_556 lpfc_nlp_state_name 2 556 NULL
++snd_aw2_saa7146_get_hw_ptr_playback_558 snd_aw2_saa7146_get_hw_ptr_playback 0 558 NULL
++start_isoc_chain_565 start_isoc_chain 2 565 NULL nohasharray
++dev_hard_header_565 dev_hard_header 0 565 &start_isoc_chain_565
++ocfs2_refcounted_xattr_delete_need_584 ocfs2_refcounted_xattr_delete_need 0 584 NULL
++smk_write_load_self2_591 smk_write_load_self2 3 591 NULL
++btrfs_stack_file_extent_offset_607 btrfs_stack_file_extent_offset 0 607 NULL
++ni_gpct_device_construct_610 ni_gpct_device_construct 5 610 NULL
++fuse_request_alloc_nofs_617 fuse_request_alloc_nofs 1 617 NULL
++ptlrpc_lprocfs_nrs_seq_write_621 ptlrpc_lprocfs_nrs_seq_write 3 621 NULL
++viafb_dfpl_proc_write_627 viafb_dfpl_proc_write 3 627 NULL
++ceph_osdc_new_request_635 ceph_osdc_new_request 6 635 NULL
++cfs_hash_bkt_size_643 cfs_hash_bkt_size 0 643 NULL
++unlink_queued_645 unlink_queued 4 645 NULL
++dtim_interval_read_654 dtim_interval_read 3 654 NULL
++mem_rx_free_mem_blks_read_675 mem_rx_free_mem_blks_read 3 675 NULL
++persistent_ram_vmap_709 persistent_ram_vmap 1-2 709 NULL
++xfs_bmap_eof_728 xfs_bmap_eof 0 728 NULL
++sctp_setsockopt_peer_addr_params_734 sctp_setsockopt_peer_addr_params 3 734 NULL
++dvb_video_write_754 dvb_video_write 3 754 NULL
++cfs_trace_allocate_string_buffer_781 cfs_trace_allocate_string_buffer 2 781 NULL
++ath6kl_disconnect_timeout_write_794 ath6kl_disconnect_timeout_write 3 794 NULL
++if_writecmd_815 if_writecmd 2 815 NULL
++aac_change_queue_depth_825 aac_change_queue_depth 2 825 NULL
++error_state_read_859 error_state_read 6 859 NULL
++o2net_send_message_vec_879 o2net_send_message_vec 4 879 NULL nohasharray
++iwl_dbgfs_fh_reg_read_879 iwl_dbgfs_fh_reg_read 3 879 &o2net_send_message_vec_879
++snd_pcm_action_single_905 snd_pcm_action_single 0 905 NULL
++carl9170_cmd_buf_950 carl9170_cmd_buf 3 950 NULL
++__nodes_weight_956 __nodes_weight 2-0 956 NULL
++bnx2x_fill_fw_str_968 bnx2x_fill_fw_str 3 968 NULL
++mnt_want_write_975 mnt_want_write 0 975 NULL
++usnic_ib_qp_grp_dump_hdr_989 usnic_ib_qp_grp_dump_hdr 2 989 NULL
++memcmp_990 memcmp 0 990 NULL
++readreg_1017 readreg 0-1 1017 NULL
++smk_write_cipso2_1021 smk_write_cipso2 3 1021 NULL
++gigaset_initdriver_1060 gigaset_initdriver 2 1060 NULL
++mce_request_packet_1073 mce_request_packet 3 1073 NULL
++agp_create_memory_1075 agp_create_memory 1 1075 NULL
++_scsih_adjust_queue_depth_1083 _scsih_adjust_queue_depth 2 1083 NULL
++llcp_sock_sendmsg_1092 llcp_sock_sendmsg 4 1092 NULL
++nfs4_init_nonuniform_client_string_1097 nfs4_init_nonuniform_client_string 3 1097 NULL
++utf8s_to_utf16s_1115 utf8s_to_utf16s 0 1115 NULL
++cfg80211_report_obss_beacon_1133 cfg80211_report_obss_beacon 3 1133 NULL
++i2400m_rx_ctl_1157 i2400m_rx_ctl 4 1157 NULL
++ipc_alloc_1192 ipc_alloc 1 1192 NULL
++ib_create_send_mad_1196 ib_create_send_mad 5 1196 NULL
++pstore_ftrace_knob_write_1198 pstore_ftrace_knob_write 3 1198 NULL
++i2400m_rx_ctl_ack_1199 i2400m_rx_ctl_ack 3 1199 NULL
++dgrp_dpa_read_1204 dgrp_dpa_read 3 1204 NULL
++i2cdev_read_1206 i2cdev_read 3 1206 NULL
++lov_ost_pool_init_1215 lov_ost_pool_init 2 1215 NULL
++fsync_buffers_list_1219 fsync_buffers_list 0 1219 NULL
++kernfs_file_direct_read_1238 kernfs_file_direct_read 3 1238 NULL
++acpi_battery_write_alarm_1240 acpi_battery_write_alarm 3 1240 NULL
++ocfs2_extend_file_1266 ocfs2_extend_file 3 1266 NULL
++qla4xxx_change_queue_depth_1268 qla4xxx_change_queue_depth 2 1268 NULL
++ioctl_private_iw_point_1273 ioctl_private_iw_point 7 1273 NULL
++SyS_flistxattr_1287 SyS_flistxattr 3 1287 NULL
++tx_frag_in_process_called_read_1290 tx_frag_in_process_called_read 3 1290 NULL
++posix_acl_xattr_set_1301 posix_acl_xattr_set 4 1301 NULL
++tcf_hash_create_1305 tcf_hash_create 4 1305 NULL
++ffs_1322 ffs 0 1322 NULL
++qlcnic_pci_sriov_configure_1327 qlcnic_pci_sriov_configure 2 1327 NULL
++btrfs_submit_compressed_write_1347 btrfs_submit_compressed_write 5 1347 NULL
++snd_pcm_lib_write1_1358 snd_pcm_lib_write1 0-3 1358 NULL
++ipx_sendmsg_1362 ipx_sendmsg 4 1362 NULL
++fw_stats_raw_read_1369 fw_stats_raw_read 3 1369 NULL
++ocfs2_prepare_inode_for_write_1372 ocfs2_prepare_inode_for_write 3 1372 NULL
++sctp_setsockopt_initmsg_1383 sctp_setsockopt_initmsg 3 1383 NULL
++do_msgsnd_1387 do_msgsnd 4 1387 NULL
++SYSC_io_getevents_1392 SYSC_io_getevents 3 1392 NULL
++file_read_actor_1401 file_read_actor 4-0 1401 NULL
++cfs_trace_copyout_string_1416 cfs_trace_copyout_string 2 1416 NULL
++init_rs_internal_1436 init_rs_internal 1 1436 NULL
++stack_max_size_read_1445 stack_max_size_read 3 1445 NULL
++tx_queue_len_read_1463 tx_queue_len_read 3 1463 NULL
++xprt_alloc_1475 xprt_alloc 2 1475 NULL
++SYSC_syslog_1477 SYSC_syslog 3 1477 NULL
++sta_num_ps_buf_frames_read_1488 sta_num_ps_buf_frames_read 3 1488 NULL
++fpregs_set_1497 fpregs_set 4 1497 NULL
++tomoyo_round2_1518 tomoyo_round2 0 1518 NULL
++alloc_perm_bits_1532 alloc_perm_bits 2 1532 NULL
++ath6kl_init_get_fwcaps_1557 ath6kl_init_get_fwcaps 3 1557 NULL
++ffs_mutex_lock_1564 ffs_mutex_lock 0 1564 NULL
++ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime_1589 ieee80211_if_read_dot11MeshHWMPnetDiameterTraversalTime 3 1589 NULL
++ipath_ht_handle_hwerrors_1592 ipath_ht_handle_hwerrors 3 1592 NULL
++packet_buffer_init_1607 packet_buffer_init 2 1607 NULL
++btmrvl_hscmd_read_1614 btmrvl_hscmd_read 3 1614 NULL
++v9fs_fid_xattr_get_1618 v9fs_fid_xattr_get 0 1618 NULL
++ikconfig_read_current_1658 ikconfig_read_current 3 1658 NULL
++mei_cl_recv_1665 mei_cl_recv 3 1665 NULL
++rmap_add_1677 rmap_add 3 1677 NULL
++configfs_read_file_1683 configfs_read_file 3 1683 NULL
++pdu_write_u_1710 pdu_write_u 3 1710 NULL
++coda_psdev_write_1711 coda_psdev_write 3 1711 NULL
++btrfs_dir_data_len_1714 btrfs_dir_data_len 0 1714 NULL
++internal_create_group_1733 internal_create_group 0 1733 NULL
++dev_irnet_read_1741 dev_irnet_read 3 1741 NULL
++usb_ep_align_maybe_1743 usb_ep_align_maybe 0-3 1743 NULL
++tx_frag_called_read_1748 tx_frag_called_read 3 1748 NULL
++cosa_write_1774 cosa_write 3 1774 NULL
++fcoe_ctlr_device_add_1793 fcoe_ctlr_device_add 3 1793 NULL
++__nodelist_scnprintf_1815 __nodelist_scnprintf 2-0 1815 NULL
++sb_issue_zeroout_1884 sb_issue_zeroout 3 1884 NULL
++rx_defrag_called_read_1897 rx_defrag_called_read 3 1897 NULL
++nfs_parse_server_name_1899 nfs_parse_server_name 2 1899 NULL
++SyS_add_key_1900 SyS_add_key 4 1900 NULL
++uhid_char_read_1920 uhid_char_read 3 1920 NULL
++tx_tx_retry_data_read_1926 tx_tx_retry_data_read 3 1926 NULL
++bdev_erase_1933 bdev_erase 3 1933 NULL
++ext3_fiemap_1936 ext3_fiemap 4 1936 NULL
++cyttsp_probe_1940 cyttsp_probe 4 1940 NULL
++ieee80211_if_fmt_dot11MeshConfirmTimeout_1945 ieee80211_if_fmt_dot11MeshConfirmTimeout 3 1945 NULL
++update_qd_1955 update_qd 0 1955 NULL
++ivtv_v4l2_read_1964 ivtv_v4l2_read 3 1964 NULL
++sel_read_avc_hash_stats_1984 sel_read_avc_hash_stats 3 1984 NULL
++gpio_power_write_1991 gpio_power_write 3 1991 NULL
++__alloc_bootmem_node_1992 __alloc_bootmem_node 2 1992 NULL
++rx_rx_defrag_read_2010 rx_rx_defrag_read 3 2010 NULL
++xfs_mru_cache_insert_2013 xfs_mru_cache_insert 0 2013 NULL
++ocfs2_global_qinit_alloc_2018 ocfs2_global_qinit_alloc 0 2018 NULL
++write_flush_pipefs_2021 write_flush_pipefs 3 2021 NULL
++BcmCopySection_2035 BcmCopySection 5 2035 NULL
++ath6kl_fwlog_mask_read_2050 ath6kl_fwlog_mask_read 3 2050 NULL
++ocfs2_expand_inline_dir_2063 ocfs2_expand_inline_dir 3 2063 NULL
++__generic_copy_from_user_intel_2073 __generic_copy_from_user_intel 0-3 2073 NULL
++diva_set_driver_dbg_mask_2077 diva_set_driver_dbg_mask 0 2077 NULL
++iwl_dbgfs_current_sleep_command_read_2081 iwl_dbgfs_current_sleep_command_read 3 2081 NULL
++idetape_chrdev_read_2097 idetape_chrdev_read 3 2097 NULL
++audit_expand_2098 audit_expand 0 2098 NULL
++__set_print_fmt_2106 __set_print_fmt 0 2106 NULL
++iwl_dbgfs_log_event_read_2107 iwl_dbgfs_log_event_read 3 2107 NULL
++ecryptfs_encrypt_and_encode_filename_2109 ecryptfs_encrypt_and_encode_filename 6 2109 NULL
++btrfs_file_extent_inline_len_2116 btrfs_file_extent_inline_len 0 2116 NULL
++enable_read_2117 enable_read 3 2117 NULL
++pcf50633_write_block_2124 pcf50633_write_block 2-3 2124 NULL
++xfs_recover_inode_owner_change_2132 xfs_recover_inode_owner_change 0 2132 NULL
++check_load_and_stores_2143 check_load_and_stores 2 2143 NULL
++iov_iter_count_2152 iov_iter_count 0 2152 NULL
++__copy_to_user_ll_2157 __copy_to_user_ll 0-3 2157 NULL
++_ore_get_io_state_2166 _ore_get_io_state 3-4-5 2166 NULL
++bio_integrity_alloc_2194 bio_integrity_alloc 3 2194 NULL
++picolcd_debug_reset_write_2195 picolcd_debug_reset_write 3 2195 NULL
++xfs_inobt_update_2206 xfs_inobt_update 0 2206 NULL
++u32_array_read_2219 u32_array_read 3 2219 NULL nohasharray
++mei_dbgfs_read_meclients_2219 mei_dbgfs_read_meclients 3 2219 &u32_array_read_2219
++__ocfs2_journal_access_2241 __ocfs2_journal_access 0 2241 NULL
++ieee80211_if_read_dot11MeshHWMPRannInterval_2249 ieee80211_if_read_dot11MeshHWMPRannInterval 3 2249 NULL
++netlbl_secattr_catmap_walk_2255 netlbl_secattr_catmap_walk 0-2 2255 NULL
++sel_write_avc_cache_threshold_2256 sel_write_avc_cache_threshold 3 2256 NULL
++do_update_counters_2259 do_update_counters 4 2259 NULL
++ath6kl_wmi_bssinfo_event_rx_2275 ath6kl_wmi_bssinfo_event_rx 3 2275 NULL
++debug_debug5_read_2291 debug_debug5_read 3 2291 NULL
++sr_read_cmd_2299 sr_read_cmd 5 2299 NULL
++kvm_clear_guest_page_2308 kvm_clear_guest_page 4 2308 NULL
++intel_sdvo_set_value_2311 intel_sdvo_set_value 4 2311 NULL
++hfsplus_find_init_2318 hfsplus_find_init 0 2318 NULL nohasharray
++picolcd_fb_write_2318 picolcd_fb_write 3 2318 &hfsplus_find_init_2318
++dice_hwdep_read_2326 dice_hwdep_read 3 2326 NULL
++__erst_read_to_erange_2341 __erst_read_to_erange 0 2341 NULL
++zr364xx_read_2354 zr364xx_read 3 2354 NULL
++ntfs_file_aio_write_nolock_2360 ntfs_file_aio_write_nolock 0 2360 NULL
++viafb_iga2_odev_proc_write_2363 viafb_iga2_odev_proc_write 3 2363 NULL
++xfs_buf_map_from_irec_2368 xfs_buf_map_from_irec 5-0 2368 NULL nohasharray
++rose_recvmsg_2368 rose_recvmsg 4 2368 &xfs_buf_map_from_irec_2368
++il_dbgfs_sensitivity_read_2370 il_dbgfs_sensitivity_read 3 2370 NULL
++rts51x_read_ppbuf_2389 rts51x_read_ppbuf 3 2389 NULL
++rxpipe_rx_prep_beacon_drop_read_2403 rxpipe_rx_prep_beacon_drop_read 3 2403 NULL
++isdn_v110_open_2418 isdn_v110_open 3 2418 NULL
++raid1_size_2419 raid1_size 0-2 2419 NULL
++b43legacy_debugfs_read_2473 b43legacy_debugfs_read 3 2473 NULL
++wiphy_new_2482 wiphy_new 2 2482 NULL
++bio_alloc_bioset_2484 bio_alloc_bioset 2 2484 NULL
++squashfs_read_fragment_index_table_2506 squashfs_read_fragment_index_table 4 2506 NULL
++v9fs_cached_file_read_2514 v9fs_cached_file_read 3 2514 NULL
++ext4_get_inode_loc_2516 ext4_get_inode_loc 0 2516 NULL
++batadv_tvlv_container_list_size_2524 batadv_tvlv_container_list_size 0 2524 NULL
++smk_write_syslog_2529 smk_write_syslog 3 2529 NULL
++__ceph_setxattr_2532 __ceph_setxattr 4 2532 NULL
++gspca_dev_probe_2570 gspca_dev_probe 4 2570 NULL
++pcm_sanity_check_2574 pcm_sanity_check 0 2574 NULL
++mdc_max_rpcs_in_flight_seq_write_2594 mdc_max_rpcs_in_flight_seq_write 3 2594 NULL
++slot_bytes_2609 slot_bytes 0 2609 NULL
++smk_write_logging_2618 smk_write_logging 3 2618 NULL
++switch_status_2629 switch_status 5 2629 NULL
++tcp_xmit_size_goal_2661 tcp_xmit_size_goal 2 2661 NULL
++osc_build_ppga_2670 osc_build_ppga 2 2670 NULL
++ffs_ep0_read_2672 ffs_ep0_read 3 2672 NULL
++oti6858_write_2692 oti6858_write 4 2692 NULL
++nfc_llcp_send_ui_frame_2702 nfc_llcp_send_ui_frame 5 2702 NULL
++memcpy_fromiovecend_2707 memcpy_fromiovecend 3-4 2707 NULL
++lprocfs_stats_counter_size_2708 lprocfs_stats_counter_size 0 2708 NULL
++gfs2_glock_nq_num_2747 gfs2_glock_nq_num 0 2747 NULL
++xfs_readdir_2767 xfs_readdir 3 2767 NULL
++mon_bin_ioctl_2771 mon_bin_ioctl 3 2771 NULL
++set_msr_hyperv_pw_2785 set_msr_hyperv_pw 3 2785 NULL
++device_add_attrs_2789 device_add_attrs 0 2789 NULL
++iwl_dbgfs_clear_ucode_statistics_write_2804 iwl_dbgfs_clear_ucode_statistics_write 3 2804 NULL
++sel_read_enforce_2828 sel_read_enforce 3 2828 NULL
++vb2_dc_get_userptr_2829 vb2_dc_get_userptr 2-3 2829 NULL
++wait_for_avail_2847 wait_for_avail 0 2847 NULL
++sfq_alloc_2861 sfq_alloc 1 2861 NULL
++irnet_ctrl_read_2863 irnet_ctrl_read 4 2863 NULL
++move_addr_to_user_2868 move_addr_to_user 2 2868 NULL
++nla_padlen_2883 nla_padlen 1 2883 NULL
++cmm_write_2896 cmm_write 3 2896 NULL
++osc_import_seq_write_2923 osc_import_seq_write 3 2923 NULL
++xfs_trans_get_buf_map_2927 xfs_trans_get_buf_map 4 2927 NULL
++nes_read_indexed_2946 nes_read_indexed 0 2946 NULL
++tm6000_i2c_recv_regs16_2949 tm6000_i2c_recv_regs16 5 2949 NULL
++i40e_dbg_prep_dump_buf_2951 i40e_dbg_prep_dump_buf 2 2951 NULL
++set_fast_connectable_2952 set_fast_connectable 4 2952 NULL
++free_area_init_core_2962 free_area_init_core 2-3 2962 NULL
++bio_setup_sector_2970 bio_setup_sector 3 2970 NULL
++do_strnlen_user_2976 do_strnlen_user 0-2 2976 NULL
++p9_nr_pages_2992 p9_nr_pages 0-2 2992 NULL
++_xfs_filestream_pick_ag_3007 _xfs_filestream_pick_ag 0 3007 NULL
++lov_stripetype_seq_write_3013 lov_stripetype_seq_write 3 3013 NULL
++do_dmabuf_dirty_sou_3017 do_dmabuf_dirty_sou 7 3017 NULL
++depth_write_3021 depth_write 3 3021 NULL
++snd_azf3328_codec_inl_3022 snd_azf3328_codec_inl 0 3022 NULL
++nvme_split_and_submit_3027 nvme_split_and_submit 3 3027 NULL
++kvm_unmap_hva_3028 kvm_unmap_hva 2 3028 NULL
++xfrm_dst_alloc_copy_3034 xfrm_dst_alloc_copy 3 3034 NULL
++lpfc_idiag_mbxacc_write_3038 lpfc_idiag_mbxacc_write 3 3038 NULL nohasharray
++iwl_dbgfs_sleep_level_override_read_3038 iwl_dbgfs_sleep_level_override_read 3 3038 &lpfc_idiag_mbxacc_write_3038
++nr_free_buffer_pages_3044 nr_free_buffer_pages 0 3044 NULL
++il3945_ucode_rx_stats_read_3048 il3945_ucode_rx_stats_read 3 3048 NULL
++qp_alloc_ppn_set_3068 qp_alloc_ppn_set 2-4 3068 NULL
++__blk_end_bidi_request_3070 __blk_end_bidi_request 3-4 3070 NULL
++dac960_user_command_proc_write_3071 dac960_user_command_proc_write 3 3071 NULL
++read_file_antenna_diversity_3077 read_file_antenna_diversity 3 3077 NULL
++ttusb2_msg_3100 ttusb2_msg 4 3100 NULL
++rb_alloc_3102 rb_alloc 1 3102 NULL
++simple_write_to_buffer_3122 simple_write_to_buffer 5-2 3122 NULL
++print_time_3132 print_time 0 3132 NULL
++fill_write_buffer_3142 fill_write_buffer 3 3142 NULL
++CIFSSMBSetPosixACL_3154 CIFSSMBSetPosixACL 5 3154 NULL
++compat_sys_migrate_pages_3157 compat_sys_migrate_pages 2 3157 NULL
++gfs2_rindex_update_3165 gfs2_rindex_update 0 3165 NULL
++uv_num_possible_blades_3177 uv_num_possible_blades 0 3177 NULL
++uvc_video_stats_dump_3181 uvc_video_stats_dump 3 3181 NULL
++compat_do_ip6t_set_ctl_3184 compat_do_ip6t_set_ctl 4 3184 NULL
++mempool_create_node_3191 mempool_create_node 1 3191 NULL
++alloc_context_3194 alloc_context 1 3194 NULL
++shmem_pread_slow_3198 shmem_pread_slow 3-2 3198 NULL
++codec_reg_write_file_3204 codec_reg_write_file 3 3204 NULL
++SyS_sendto_3219 SyS_sendto 6 3219 NULL
++btrfs_prealloc_file_range_3227 btrfs_prealloc_file_range 3 3227 NULL
++kimage_crash_alloc_3233 kimage_crash_alloc 3 3233 NULL
++write_adapter_mem_3234 write_adapter_mem 3 3234 NULL
++do_read_log_to_user_3236 do_read_log_to_user 4 3236 NULL
++ext3_xattr_find_entry_3237 ext3_xattr_find_entry 0 3237 NULL
++key_key_read_3241 key_key_read 3 3241 NULL
++__ilog2_u64_3284 __ilog2_u64 0 3284 NULL
++__set_extent_bit_3305 __set_extent_bit 0 3305 NULL
++__iovec_copy_from_user_inatomic_3314 __iovec_copy_from_user_inatomic 0-4-3 3314 NULL
++_iwl_dbgfs_d3_sram_write_3315 _iwl_dbgfs_d3_sram_write 3 3315 NULL
++dbDiscardAG_3322 dbDiscardAG 3 3322 NULL
++compat_sys_setsockopt_3326 compat_sys_setsockopt 5 3326 NULL
++read_from_oldmem_3337 read_from_oldmem 2 3337 NULL
++sysfs_create_group_3339 sysfs_create_group 0 3339 NULL
++tty_port_register_device_attr_3341 tty_port_register_device_attr 3 3341 NULL
++il_dbgfs_interrupt_read_3351 il_dbgfs_interrupt_read 3 3351 NULL
++gsm_control_rls_3353 gsm_control_rls 3 3353 NULL
++scnprintf_3360 scnprintf 0-2 3360 NULL
++ReadByteAmd7930_3365 ReadByteAmd7930 0 3365 NULL
++sr_read_3366 sr_read 3 3366 NULL
++mtdchar_writeoob_3393 mtdchar_writeoob 4 3393 NULL
++send_stream_3397 send_stream 4 3397 NULL
++isdn_readbchan_3401 isdn_readbchan 0-5 3401 NULL
++mei_io_cb_alloc_resp_buf_3414 mei_io_cb_alloc_resp_buf 2 3414 NULL
++pci_add_cap_save_buffer_3426 pci_add_cap_save_buffer 3 3426 NULL
++crystalhd_create_dio_pool_3427 crystalhd_create_dio_pool 2 3427 NULL
++SyS_msgsnd_3436 SyS_msgsnd 3 3436 NULL
++pipe_iov_copy_to_user_3447 pipe_iov_copy_to_user 3 3447 NULL
++softsynth_write_3455 softsynth_write 3 3455 NULL
++snd_pcm_lib_readv_transfer_3464 snd_pcm_lib_readv_transfer 5-4-2 3464 NULL
++security_context_to_sid_default_3492 security_context_to_sid_default 2 3492 NULL
++xfrm_migrate_msgsize_3496 xfrm_migrate_msgsize 1 3496 NULL
++mem_tx_free_mem_blks_read_3521 mem_tx_free_mem_blks_read 3 3521 NULL
++SyS_semtimedop_3532 SyS_semtimedop 3 3532 NULL
++SyS_readv_3539 SyS_readv 3 3539 NULL
++btrfs_dir_name_len_3549 btrfs_dir_name_len 0 3549 NULL
++alloc_smp_resp_3566 alloc_smp_resp 1 3566 NULL
++evtchn_read_3569 evtchn_read 3 3569 NULL
++ll_track_ppid_seq_write_3582 ll_track_ppid_seq_write 3 3582 NULL
++vc_resize_3585 vc_resize 3-2 3585 NULL
++kvm_mmu_notifier_change_pte_3596 kvm_mmu_notifier_change_pte 3 3596 NULL
++sctp_getsockopt_events_3607 sctp_getsockopt_events 2 3607 NULL
++edac_mc_alloc_3611 edac_mc_alloc 4 3611 NULL
++tx_tx_starts_read_3617 tx_tx_starts_read 3 3617 NULL
++aligned_kmalloc_3628 aligned_kmalloc 1 3628 NULL
++ath6kl_disconnect_timeout_read_3650 ath6kl_disconnect_timeout_read 3 3650 NULL
++i915_compat_ioctl_3656 i915_compat_ioctl 2 3656 NULL
++xfs_attr3_leaf_list_int_3661 xfs_attr3_leaf_list_int 0 3661 NULL
++_iwl_dbgfs_tx_flush_write_3675 _iwl_dbgfs_tx_flush_write 3 3675 NULL
++snd_m3_assp_read_3703 snd_m3_assp_read 0 3703 NULL
++ci_ll_write_3740 ci_ll_write 4 3740 NULL
++sctp_setsockopt_auth_key_3793 sctp_setsockopt_auth_key 3 3793 NULL
++ncp_file_write_3813 ncp_file_write 3 3813 NULL
++llc_ui_recvmsg_3826 llc_ui_recvmsg 4 3826 NULL
++hfsplus_direct_IO_3835 hfsplus_direct_IO 4 3835 NULL
++create_one_cdev_3852 create_one_cdev 2 3852 NULL
++smk_read_onlycap_3855 smk_read_onlycap 3 3855 NULL
++get_fd_set_3866 get_fd_set 1 3866 NULL
++apei_res_sub_3873 apei_res_sub 0 3873 NULL
++garp_attr_create_3883 garp_attr_create 3 3883 NULL
++efivarfs_file_read_3893 efivarfs_file_read 3 3893 NULL
++nvram_write_3894 nvram_write 3 3894 NULL
++pipeline_pre_proc_swi_read_3898 pipeline_pre_proc_swi_read 3 3898 NULL
++comedi_buf_read_n_available_3899 comedi_buf_read_n_available 0 3899 NULL
++vcs_write_3910 vcs_write 3 3910 NULL
++SyS_move_pages_3920 SyS_move_pages 2 3920 NULL
++hdlc_irq_one_3944 hdlc_irq_one 2 3944 NULL
++brcmf_debugfs_fws_stats_read_3947 brcmf_debugfs_fws_stats_read 3 3947 NULL
++mite_bytes_written_to_memory_lb_3987 mite_bytes_written_to_memory_lb 0 3987 NULL
++do_add_counters_3992 do_add_counters 3 3992 NULL
++xfs_bmbt_lookup_eq_3997 xfs_bmbt_lookup_eq 0 3997 NULL
++obd_alloc_memmd_4002 obd_alloc_memmd 0 4002 NULL
++userspace_status_4004 userspace_status 4 4004 NULL
++xfs_check_block_4005 xfs_check_block 4 4005 NULL nohasharray
++mei_write_4005 mei_write 3 4005 &xfs_check_block_4005
++gfs2_dir_get_existing_buffer_4007 gfs2_dir_get_existing_buffer 0 4007 NULL
++snd_hdsp_capture_copy_4011 snd_hdsp_capture_copy 5 4011 NULL
++blk_end_request_4024 blk_end_request 3 4024 NULL
++ext4_xattr_find_entry_4025 ext4_xattr_find_entry 0 4025 NULL
++xfs_free_ag_extent_4036 xfs_free_ag_extent 0 4036 NULL
++mtip_hw_read_registers_4037 mtip_hw_read_registers 3 4037 NULL
++read_file_queues_4078 read_file_queues 3 4078 NULL
++fbcon_do_set_font_4079 fbcon_do_set_font 2-3 4079 NULL
++C_SYSC_rt_sigpending_4114 C_SYSC_rt_sigpending 2 4114 NULL
++tm6000_read_4151 tm6000_read 3 4151 NULL
++mpt_raid_phys_disk_get_num_paths_4155 mpt_raid_phys_disk_get_num_paths 0 4155 NULL
++msg_bits_4158 msg_bits 0-3-4 4158 NULL
++get_alua_req_4166 get_alua_req 3 4166 NULL
++blk_dropped_read_4168 blk_dropped_read 3 4168 NULL
++read_file_bool_4180 read_file_bool 3 4180 NULL
++ocfs2_find_cpos_for_right_leaf_4194 ocfs2_find_cpos_for_right_leaf 0 4194 NULL
++vring_new_virtqueue_4199 vring_new_virtqueue 2 4199 NULL
++f1x_determine_channel_4202 f1x_determine_channel 2 4202 NULL
++_osd_req_list_objects_4204 _osd_req_list_objects 6 4204 NULL
++__snd_gf1_read_addr_4210 __snd_gf1_read_addr 0 4210 NULL
++ath6kl_force_roam_write_4282 ath6kl_force_roam_write 3 4282 NULL
++goldfish_audio_write_4284 goldfish_audio_write 3 4284 NULL
++__usbnet_read_cmd_4299 __usbnet_read_cmd 7 4299 NULL
++dvb_ringbuffer_pkt_read_user_4303 dvb_ringbuffer_pkt_read_user 2-3-5 4303 NULL
++count_strings_4315 count_strings 0 4315 NULL
++nouveau_fifo_create__4327 nouveau_fifo_create_ 5-6 4327 NULL
++snd_rawmidi_kernel_read_4328 snd_rawmidi_kernel_read 3 4328 NULL
++ima_eventdigest_init_common_4338 ima_eventdigest_init_common 2 4338 NULL
++__copy_from_user_inatomic_4365 __copy_from_user_inatomic 0-3 4365 NULL nohasharray
++lookup_string_4365 lookup_string 0 4365 &__copy_from_user_inatomic_4365
++irda_sendmsg_4388 irda_sendmsg 4 4388 NULL
++access_process_vm_4412 access_process_vm 0 4412 NULL nohasharray
++cxacru_cm_get_array_4412 cxacru_cm_get_array 4 4412 &access_process_vm_4412
++libfc_vport_create_4415 libfc_vport_create 2 4415 NULL
++rtw_android_get_rssi_4421 rtw_android_get_rssi 0 4421 NULL
++do_pages_stat_4437 do_pages_stat 2 4437 NULL
++at76_set_card_command_4471 at76_set_card_command 4 4471 NULL
++snd_seq_expand_var_event_4481 snd_seq_expand_var_event 5-0 4481 NULL
++vmbus_establish_gpadl_4495 vmbus_establish_gpadl 3 4495 NULL
++set_link_security_4502 set_link_security 4 4502 NULL
++xfs_btree_kill_root_4526 xfs_btree_kill_root 0 4526 NULL
++ll_max_readahead_per_file_mb_seq_write_4531 ll_max_readahead_per_file_mb_seq_write 3 4531 NULL
++tty_register_device_4544 tty_register_device 2 4544 NULL
++btrfs_file_extent_inline_item_len_4575 btrfs_file_extent_inline_item_len 0 4575 NULL
++xfs_buf_get_maps_4581 xfs_buf_get_maps 2 4581 NULL
++bch_alloc_4593 bch_alloc 1 4593 NULL
++ocfs2_refcount_lock_4595 ocfs2_refcount_lock 0 4595 NULL
++ll_rw_extents_stats_seq_write_4633 ll_rw_extents_stats_seq_write 3 4633 NULL
++iwl_dbgfs_tx_queue_read_4635 iwl_dbgfs_tx_queue_read 3 4635 NULL
++skb_add_data_nocache_4682 skb_add_data_nocache 4 4682 NULL
++cx18_read_pos_4683 cx18_read_pos 3 4683 NULL
++short_retry_limit_read_4687 short_retry_limit_read 3 4687 NULL
++kone_receive_4690 kone_receive 4 4690 NULL
++hash_netportnet6_expire_4702 hash_netportnet6_expire 4 4702 NULL
++cxgbi_alloc_big_mem_4707 cxgbi_alloc_big_mem 1 4707 NULL
++ati_create_gatt_pages_4722 ati_create_gatt_pages 1 4722 NULL nohasharray
++show_header_4722 show_header 3 4722 &ati_create_gatt_pages_4722
++bitmap_startwrite_4736 bitmap_startwrite 2 4736 NULL nohasharray
++ll_rw_offset_stats_seq_write_4736 ll_rw_offset_stats_seq_write 3 4736 &bitmap_startwrite_4736
++lu_buf_alloc_4753 lu_buf_alloc 2 4753 NULL
++pwr_rcvd_bcns_cnt_read_4774 pwr_rcvd_bcns_cnt_read 3 4774 NULL
++create_subvol_4791 create_subvol 4 4791 NULL
++ncp__vol2io_4804 ncp__vol2io 5 4804 NULL
++repair_io_failure_4815 repair_io_failure 4-3 4815 NULL
++comedi_buf_write_free_4847 comedi_buf_write_free 2 4847 NULL
++gigaset_if_receive_4861 gigaset_if_receive 3 4861 NULL
++key_tx_spec_read_4862 key_tx_spec_read 3 4862 NULL
++ocfs2_defrag_extent_4873 ocfs2_defrag_extent 2 4873 NULL
++hid_register_field_4874 hid_register_field 2-3 4874 NULL
++vga_arb_read_4886 vga_arb_read 3 4886 NULL
++ieee80211_if_fmt_ave_beacon_4941 ieee80211_if_fmt_ave_beacon 3 4941 NULL
++ocfs2_should_refresh_lock_res_4958 ocfs2_should_refresh_lock_res 0 4958 NULL
++compat_rawv6_setsockopt_4967 compat_rawv6_setsockopt 5 4967 NULL
++ath10k_read_chip_id_4969 ath10k_read_chip_id 3 4969 NULL
++skb_network_header_len_4971 skb_network_header_len 0 4971 NULL
++ieee80211_if_fmt_dot11MeshHWMPconfirmationInterval_4976 ieee80211_if_fmt_dot11MeshHWMPconfirmationInterval 3 4976 NULL
++compat_SyS_ipc_5000 compat_SyS_ipc 3 5000 NULL
++do_mincore_5018 do_mincore 0-2-1 5018 NULL
++btrfs_punch_hole_5041 btrfs_punch_hole 2 5041 NULL
++cfg80211_rx_mgmt_5056 cfg80211_rx_mgmt 5 5056 NULL
++ocfs2_check_range_for_holes_5066 ocfs2_check_range_for_holes 3-2 5066 NULL
++snd_mixart_BA1_read_5082 snd_mixart_BA1_read 5 5082 NULL
++snd_emu10k1_ptr20_read_5087 snd_emu10k1_ptr20_read 0 5087 NULL
++kfifo_copy_from_user_5091 kfifo_copy_from_user 3-4-0 5091 NULL nohasharray
++get_random_bytes_5091 get_random_bytes 2 5091 &kfifo_copy_from_user_5091 nohasharray
++blk_rq_sectors_5091 blk_rq_sectors 0 5091 &get_random_bytes_5091
++sound_write_5102 sound_write 3 5102 NULL
++i40e_dbg_netdev_ops_write_5117 i40e_dbg_netdev_ops_write 3 5117 NULL
++qib_7220_handle_hwerrors_5142 qib_7220_handle_hwerrors 3 5142 NULL
++__uwb_addr_print_5161 __uwb_addr_print 2 5161 NULL
++iwl_dbgfs_status_read_5171 iwl_dbgfs_status_read 3 5171 NULL
++acpi_pcc_get_sqty_5176 acpi_pcc_get_sqty 0 5176 NULL
++ppp_cp_parse_cr_5214 ppp_cp_parse_cr 4 5214 NULL
++dwc2_hcd_urb_alloc_5217 dwc2_hcd_urb_alloc 2 5217 NULL
++ath6kl_debug_roam_tbl_event_5224 ath6kl_debug_roam_tbl_event 3 5224 NULL
++usb_descriptor_fillbuf_5302 usb_descriptor_fillbuf 0 5302 NULL
++r592_write_fifo_pio_5315 r592_write_fifo_pio 3 5315 NULL
++sbc_get_write_same_sectors_5317 sbc_get_write_same_sectors 0 5317 NULL
++pwr_elp_enter_read_5324 pwr_elp_enter_read 3 5324 NULL
++cq_free_res_5355 cq_free_res 5 5355 NULL
++ps_pspoll_utilization_read_5361 ps_pspoll_utilization_read 3 5361 NULL
++cciss_allocate_sg_chain_blocks_5368 cciss_allocate_sg_chain_blocks 3-2 5368 NULL
++xfs_free_extent_5411 xfs_free_extent 0 5411 NULL
++xfs_efd_init_5463 xfs_efd_init 3 5463 NULL
++ll_xattr_cache_refill_5468 ll_xattr_cache_refill 0 5468 NULL
++kernfs_fop_write_5471 kernfs_fop_write 3 5471 NULL
++xfs_efi_init_5476 xfs_efi_init 2 5476 NULL
++cifs_security_flags_proc_write_5484 cifs_security_flags_proc_write 3 5484 NULL
++tty_write_5494 tty_write 3 5494 NULL
++tomoyo_update_domain_5498 tomoyo_update_domain 2 5498 NULL nohasharray
++ieee80211_if_fmt_last_beacon_5498 ieee80211_if_fmt_last_beacon 3 5498 &tomoyo_update_domain_5498
++__max_nr_grant_frames_5505 __max_nr_grant_frames 0 5505 NULL
++ieee80211_if_fmt_auto_open_plinks_5534 ieee80211_if_fmt_auto_open_plinks 3 5534 NULL
++get_entry_msg_len_5552 get_entry_msg_len 0 5552 NULL
++le_readq_5557 le_readq 0 5557 NULL
++inw_5558 inw 0 5558 NULL
++gfs2_extent_map_5561 gfs2_extent_map 0 5561 NULL
++bioset_create_5580 bioset_create 1 5580 NULL
++oz_ep_alloc_5587 oz_ep_alloc 1 5587 NULL
++__remove_suid_5618 __remove_suid 0 5618 NULL
++gfs2_unstuffer_page_5620 gfs2_unstuffer_page 0 5620 NULL
++SYSC_fsetxattr_5639 SYSC_fsetxattr 4 5639 NULL
++ext4_xattr_get_5661 ext4_xattr_get 0 5661 NULL
++posix_clock_register_5662 posix_clock_register 2 5662 NULL
++get_arg_5694 get_arg 3 5694 NULL
++subbuf_read_actor_5708 subbuf_read_actor 3 5708 NULL
++vmw_kms_readback_5727 vmw_kms_readback 6 5727 NULL
++rts51x_transfer_data_partial_5735 rts51x_transfer_data_partial 6 5735 NULL
++sctp_setsockopt_autoclose_5775 sctp_setsockopt_autoclose 3 5775 NULL
++__vxge_hw_blockpool_malloc_5786 __vxge_hw_blockpool_malloc 2 5786 NULL
++nvme_trans_bdev_char_page_5797 nvme_trans_bdev_char_page 3 5797 NULL
++skb_copy_datagram_iovec_5806 skb_copy_datagram_iovec 2-4 5806 NULL
++nv50_disp_pioc_create__5812 nv50_disp_pioc_create_ 5 5812 NULL
++ceph_x_encrypt_buflen_5829 ceph_x_encrypt_buflen 0-1 5829 NULL
++ceph_msg_new_5846 ceph_msg_new 2 5846 NULL
++setup_req_5848 setup_req 3 5848 NULL
++ria_page_count_5849 ria_page_count 0 5849 NULL
++rx_filter_max_arp_queue_dep_read_5851 rx_filter_max_arp_queue_dep_read 3 5851 NULL
++config_buf_5862 config_buf 0 5862 NULL
++lprocfs_fid_width_seq_write_5889 lprocfs_fid_width_seq_write 3 5889 NULL
++port_show_regs_5904 port_show_regs 3 5904 NULL
++rbd_segment_length_5907 rbd_segment_length 0-3-2 5907 NULL
++uhci_debug_read_5911 uhci_debug_read 3 5911 NULL
++lbs_highsnr_read_5931 lbs_highsnr_read 3 5931 NULL
++ps_poll_ps_poll_timeouts_read_5934 ps_poll_ps_poll_timeouts_read 3 5934 NULL
++edac_device_alloc_ctl_info_5941 edac_device_alloc_ctl_info 1 5941 NULL
++ll_statahead_one_5962 ll_statahead_one 3 5962 NULL
++__apu_get_register_5967 __apu_get_register 0 5967 NULL
++ieee80211_if_fmt_rc_rateidx_mask_5ghz_5971 ieee80211_if_fmt_rc_rateidx_mask_5ghz 3 5971 NULL
++SyS_semop_5980 SyS_semop 3 5980 NULL
++alloc_msg_6072 alloc_msg 1 6072 NULL
++sctp_setsockopt_connectx_6073 sctp_setsockopt_connectx 3 6073 NULL
++rts51x_ms_rw_multi_sector_6076 rts51x_ms_rw_multi_sector 3-4 6076 NULL
++__mnt_want_write_6091 __mnt_want_write 0 6091 NULL
++ipmi_addr_length_6110 ipmi_addr_length 0 6110 NULL
++dfs_global_file_write_6112 dfs_global_file_write 3 6112 NULL
++nouveau_parent_create__6131 nouveau_parent_create_ 7 6131 NULL
++ieee80211_if_fmt_beacon_timeout_6153 ieee80211_if_fmt_beacon_timeout 3 6153 NULL
++ivtv_copy_buf_to_user_6159 ivtv_copy_buf_to_user 4 6159 NULL
++maybe_insert_hole_6167 maybe_insert_hole 3 6167 NULL
++wl1251_cmd_template_set_6172 wl1251_cmd_template_set 4 6172 NULL
++SyS_setgroups_6182 SyS_setgroups 1 6182 NULL
++mxt_show_instance_6207 mxt_show_instance 2-0 6207 NULL
++v4l2_ctrl_new_std_menu_6221 v4l2_ctrl_new_std_menu 4 6221 NULL
++mqueue_read_file_6228 mqueue_read_file 3 6228 NULL
++f_hidg_read_6238 f_hidg_read 3 6238 NULL
++fbcon_prepare_logo_6246 fbcon_prepare_logo 5 6246 NULL
++tx_tx_start_null_frame_read_6281 tx_tx_start_null_frame_read 3 6281 NULL
++snd_hda_override_conn_list_6282 snd_hda_override_conn_list 3-0 6282 NULL nohasharray
++xenbus_file_write_6282 xenbus_file_write 3 6282 &snd_hda_override_conn_list_6282
++posix_acl_fix_xattr_to_user_6283 posix_acl_fix_xattr_to_user 2 6283 NULL
++serial_port_in_6291 serial_port_in 0 6291 NULL
++qlcnic_sriov_alloc_bc_msg_6309 qlcnic_sriov_alloc_bc_msg 2 6309 NULL
++hfa384x_inw_6329 hfa384x_inw 0 6329 NULL nohasharray
++SyS_mincore_6329 SyS_mincore 2-1 6329 &hfa384x_inw_6329
++fuse_get_req_for_background_6337 fuse_get_req_for_background 2 6337 NULL
++ucs2_strnlen_6342 ucs2_strnlen 0 6342 NULL
++regcache_sync_block_raw_6350 regcache_sync_block_raw 5-4 6350 NULL
++mei_dbgfs_read_devstate_6352 mei_dbgfs_read_devstate 3 6352 NULL
++_proc_do_string_6376 _proc_do_string 2 6376 NULL
++osd_req_read_sg_kern_6378 osd_req_read_sg_kern 5 6378 NULL
++gfs2_dir_read_stuffed_6380 gfs2_dir_read_stuffed 3 6380 NULL
++xfs_bmap_extents_to_btree_6387 xfs_bmap_extents_to_btree 0 6387 NULL
++posix_acl_fix_xattr_userns_6420 posix_acl_fix_xattr_userns 4 6420 NULL
++add_transaction_credits_6422 add_transaction_credits 2-3 6422 NULL
++ipr_change_queue_depth_6431 ipr_change_queue_depth 2 6431 NULL
++__alloc_bootmem_node_nopanic_6432 __alloc_bootmem_node_nopanic 2 6432 NULL
++ieee80211_if_fmt_dot11MeshMaxRetries_6476 ieee80211_if_fmt_dot11MeshMaxRetries 3 6476 NULL
++qp_memcpy_from_queue_6479 qp_memcpy_from_queue 5-4 6479 NULL
++cipso_v4_map_lvl_hton_6490 cipso_v4_map_lvl_hton 0 6490 NULL
++dbg_intr_buf_6501 dbg_intr_buf 2 6501 NULL
++mei_read_6507 mei_read 3 6507 NULL
++rndis_set_oid_6547 rndis_set_oid 4 6547 NULL
++wdm_read_6549 wdm_read 3 6549 NULL
++dm_stats_create_6551 dm_stats_create 4-2-3 6551 NULL
++fb_alloc_cmap_6554 fb_alloc_cmap 2 6554 NULL
++SyS_semtimedop_6563 SyS_semtimedop 3 6563 NULL
++xfs_iozero_6573 xfs_iozero 0 6573 NULL
++ecryptfs_filldir_6622 ecryptfs_filldir 3 6622 NULL
++xfs_do_div_6649 xfs_do_div 0-2 6649 NULL
++process_rcvd_data_6679 process_rcvd_data 3 6679 NULL
++btrfs_lookup_csums_range_6696 btrfs_lookup_csums_range 2-3 6696 NULL
++ps_pspoll_max_apturn_read_6699 ps_pspoll_max_apturn_read 3 6699 NULL
++bnad_debugfs_write_regrd_6706 bnad_debugfs_write_regrd 3 6706 NULL
++mpeg_read_6708 mpeg_read 3 6708 NULL
++ibmpex_query_sensor_count_6709 ibmpex_query_sensor_count 0 6709 NULL
++video_proc_write_6724 video_proc_write 3 6724 NULL
++posix_acl_xattr_count_6725 posix_acl_xattr_count 0-1 6725 NULL nohasharray
++rts51x_transfer_data_rcc_6725 rts51x_transfer_data_rcc 4 6725 &posix_acl_xattr_count_6725
++kobject_add_varg_6781 kobject_add_varg 0 6781 NULL
++iwl_dbgfs_channels_read_6784 iwl_dbgfs_channels_read 3 6784 NULL
++ieee80211_if_read_6785 ieee80211_if_read 3 6785 NULL
++zone_spanned_pages_in_node_6787 zone_spanned_pages_in_node 0-3-4 6787 NULL
++hdlcdrv_register_6792 hdlcdrv_register 2 6792 NULL
++ll_xattr_cache_find_6798 ll_xattr_cache_find 0 6798 NULL
++tx_tx_done_data_read_6799 tx_tx_done_data_read 3 6799 NULL
++lbs_rdrf_write_6826 lbs_rdrf_write 3 6826 NULL
++calc_pages_for_6838 calc_pages_for 0-1-2 6838 NULL
++mon_bin_read_6841 mon_bin_read 3 6841 NULL
++snd_cs4281_BA0_read_6847 snd_cs4281_BA0_read 5 6847 NULL
++xfs_rtany_summary_6851 xfs_rtany_summary 0 6851 NULL
++perf_output_sample_ustack_6868 perf_output_sample_ustack 2 6868 NULL
++dio_complete_6879 dio_complete 0-2-3 6879 NULL
++raw_seticmpfilter_6888 raw_seticmpfilter 3 6888 NULL nohasharray
++ieee80211_if_fmt_path_refresh_time_6888 ieee80211_if_fmt_path_refresh_time 3 6888 &raw_seticmpfilter_6888
++dlmfs_file_write_6892 dlmfs_file_write 3 6892 NULL
++proc_sessionid_read_6911 proc_sessionid_read 3 6911 NULL nohasharray
++spi_show_regs_6911 spi_show_regs 3 6911 &proc_sessionid_read_6911 nohasharray
++acm_alloc_minor_6911 acm_alloc_minor 0 6911 &spi_show_regs_6911
++__kfifo_dma_in_finish_r_6913 __kfifo_dma_in_finish_r 2-3 6913 NULL
++lops_scan_elements_6916 lops_scan_elements 0 6916 NULL
++do_msgrcv_6921 do_msgrcv 3 6921 NULL
++cache_do_downcall_6926 cache_do_downcall 3 6926 NULL
++ipath_verbs_send_dma_6929 ipath_verbs_send_dma 6 6929 NULL
++qsfp_cks_6945 qsfp_cks 2-0 6945 NULL
++tg3_nvram_write_block_unbuffered_6955 tg3_nvram_write_block_unbuffered 3 6955 NULL
++pch_uart_hal_read_6961 pch_uart_hal_read 0 6961 NULL
++rsa_extract_mpi_6973 rsa_extract_mpi 5 6973 NULL nohasharray
++i40e_dbg_dump_write_6973 i40e_dbg_dump_write 3 6973 &rsa_extract_mpi_6973
++request_key_async_6990 request_key_async 4 6990 NULL
++tpl_write_6998 tpl_write 3 6998 NULL
++r871x_set_wpa_ie_7000 r871x_set_wpa_ie 3 7000 NULL
++cipso_v4_gentag_enum_7006 cipso_v4_gentag_enum 0 7006 NULL
++tracing_cpumask_read_7010 tracing_cpumask_read 3 7010 NULL
++ld_usb_write_7022 ld_usb_write 3 7022 NULL
++wimax_msg_7030 wimax_msg 4 7030 NULL
++ceph_kvmalloc_7033 ceph_kvmalloc 1 7033 NULL
++ipath_get_base_info_7043 ipath_get_base_info 3 7043 NULL
++snd_pcm_oss_bytes_7051 snd_pcm_oss_bytes 2 7051 NULL
++hci_sock_recvmsg_7072 hci_sock_recvmsg 4 7072 NULL
++event_enable_read_7074 event_enable_read 3 7074 NULL
++beacon_interval_read_7091 beacon_interval_read 3 7091 NULL
++pipeline_enc_rx_stat_fifo_int_read_7107 pipeline_enc_rx_stat_fifo_int_read 3 7107 NULL
++osc_resend_count_seq_write_7120 osc_resend_count_seq_write 3 7120 NULL
++qib_format_hwerrors_7133 qib_format_hwerrors 5 7133 NULL
++kvm_mmu_notifier_test_young_7139 kvm_mmu_notifier_test_young 3 7139 NULL
++__alloc_objio_seg_7203 __alloc_objio_seg 1 7203 NULL
++hdlc_loop_7255 hdlc_loop 0 7255 NULL
++f_midi_start_ep_7270 f_midi_start_ep 0 7270 NULL
++rx_rate_rx_frames_per_rates_read_7282 rx_rate_rx_frames_per_rates_read 3 7282 NULL
++get_string_7302 get_string 0 7302 NULL
++security_inode_need_killpriv_7322 security_inode_need_killpriv 0 7322 NULL
++pci_vpd_info_field_size_7324 pci_vpd_info_field_size 0 7324 NULL
++mgmt_control_7349 mgmt_control 3 7349 NULL
++at_est2timeout_7365 at_est2timeout 0-1 7365 NULL
++ieee80211_if_read_dot11MeshHWMPactivePathTimeout_7368 ieee80211_if_read_dot11MeshHWMPactivePathTimeout 3 7368 NULL
++xfs_btree_delete_7384 xfs_btree_delete 0 7384 NULL
++ath10k_read_fw_stats_7387 ath10k_read_fw_stats 3 7387 NULL
++hweight_long_7388 hweight_long 1-0 7388 NULL
++sl_change_mtu_7396 sl_change_mtu 2 7396 NULL
++_ore_add_stripe_unit_7399 _ore_add_stripe_unit 6-3 7399 NULL
++readb_7401 readb 0 7401 NULL
++drm_property_create_blob_7414 drm_property_create_blob 2 7414 NULL
++__copy_to_user_nocheck_7443 __copy_to_user_nocheck 0-3 7443 NULL
++ip_options_get_alloc_7448 ip_options_get_alloc 1 7448 NULL
++SYSC_setgroups_7454 SYSC_setgroups 1 7454 NULL
++rt2x00debug_read_queue_stats_7455 rt2x00debug_read_queue_stats 3 7455 NULL
++l2tp_ip6_sendmsg_7461 l2tp_ip6_sendmsg 4 7461 NULL
++garp_request_join_7471 garp_request_join 4 7471 NULL nohasharray
++ReadHSCX_7471 ReadHSCX 0 7471 &garp_request_join_7471
++snd_pcm_lib_read1_7491 snd_pcm_lib_read1 0-3 7491 NULL
++iwl_mvm_power_dbgfs_read_7502 iwl_mvm_power_dbgfs_read 0 7502 NULL
++ahash_instance_headroom_7509 ahash_instance_headroom 0 7509 NULL nohasharray
++sdhci_alloc_host_7509 sdhci_alloc_host 2 7509 &ahash_instance_headroom_7509
++array_zalloc_7519 array_zalloc 1-2 7519 NULL
++ath10k_read_htt_stats_mask_7557 ath10k_read_htt_stats_mask 3 7557 NULL
++smk_read_mapped_7562 smk_read_mapped 3 7562 NULL
++cfs_cpt_num_estimate_7571 cfs_cpt_num_estimate 0 7571 NULL
++ocfs2_lock_create_7612 ocfs2_lock_create 0 7612 NULL
++groups_alloc_7614 groups_alloc 1 7614 NULL nohasharray
++create_dir_7614 create_dir 0 7614 &groups_alloc_7614
++_rtw_zmalloc_7636 _rtw_zmalloc 1 7636 NULL
++xfs_bmap_btalloc_nullfb_7654 xfs_bmap_btalloc_nullfb 0 7654 NULL
++fault_inject_write_7662 fault_inject_write 3 7662 NULL
++acpi_ex_allocate_name_string_7685 acpi_ex_allocate_name_string 2-1 7685 NULL
++acpi_ns_get_pathname_length_7699 acpi_ns_get_pathname_length 0 7699 NULL
++dev_write_7708 dev_write 3 7708 NULL
++pci_raw_set_power_state_7729 pci_raw_set_power_state 0 7729 NULL
++vxge_device_register_7752 vxge_device_register 4 7752 NULL
++iwl_dbgfs_bt_cmd_read_7770 iwl_dbgfs_bt_cmd_read 3 7770 NULL
++alloc_candev_7776 alloc_candev 1-2 7776 NULL
++dfs_global_file_read_7787 dfs_global_file_read 3 7787 NULL
++bnx2_nvram_write_7790 bnx2_nvram_write 4-2 7790 NULL
++diva_os_copy_from_user_7792 diva_os_copy_from_user 4 7792 NULL nohasharray
++lustre_packed_msg_size_7792 lustre_packed_msg_size 0 7792 &diva_os_copy_from_user_7792
++xfs_alloc_find_best_extent_7837 xfs_alloc_find_best_extent 0 7837 NULL
++cfs_trace_dump_debug_buffer_usrstr_7861 cfs_trace_dump_debug_buffer_usrstr 2 7861 NULL
++tipc_alloc_entry_7875 tipc_alloc_entry 2 7875 NULL
++config_desc_7878 config_desc 0 7878 NULL
++gfs2_permission_7884 gfs2_permission 0 7884 NULL
++dvb_dmxdev_read_sec_7892 dvb_dmxdev_read_sec 4 7892 NULL
++xd_read_data_from_ppb_7897 xd_read_data_from_ppb 4 7897 NULL
++xfs_trans_get_efi_7898 xfs_trans_get_efi 2 7898 NULL
++libfc_host_alloc_7917 libfc_host_alloc 2 7917 NULL
++f_hidg_write_7932 f_hidg_write 3 7932 NULL
++integrity_digsig_verify_7956 integrity_digsig_verify 3-0 7956 NULL
++smk_write_load_self_7958 smk_write_load_self 3 7958 NULL
++tt3650_ci_msg_locked_8013 tt3650_ci_msg_locked 4 8013 NULL
++vcs_read_8017 vcs_read 3 8017 NULL
++vhost_add_used_and_signal_n_8038 vhost_add_used_and_signal_n 4 8038 NULL
++ms_read_multiple_pages_8052 ms_read_multiple_pages 5-4 8052 NULL
++dgrp_mon_read_8065 dgrp_mon_read 3 8065 NULL
++spi_write_then_read_8073 spi_write_then_read 5-3 8073 NULL
++qla4xxx_post_ping_evt_work_8074 qla4xxx_post_ping_evt_work 4 8074 NULL
++venus_lookup_8121 venus_lookup 4 8121 NULL
++ieee80211_if_fmt_num_buffered_multicast_8127 ieee80211_if_fmt_num_buffered_multicast 3 8127 NULL
++xfs_file_fallocate_8150 xfs_file_fallocate 3-4 8150 NULL
++__sk_mem_schedule_8185 __sk_mem_schedule 2 8185 NULL
++ieee80211_if_fmt_dot11MeshHoldingTimeout_8187 ieee80211_if_fmt_dot11MeshHoldingTimeout 3 8187 NULL
++recent_mt_proc_write_8206 recent_mt_proc_write 3 8206 NULL
++__ocfs2_lock_refcount_tree_8207 __ocfs2_lock_refcount_tree 0 8207 NULL
++rt2x00debug_write_bbp_8212 rt2x00debug_write_bbp 3 8212 NULL
++ad7879_spi_multi_read_8218 ad7879_spi_multi_read 3 8218 NULL
++play_iframe_8219 play_iframe 3 8219 NULL
++kvm_mmu_page_set_gfn_8225 kvm_mmu_page_set_gfn 2 8225 NULL
++sctp_ssnmap_size_8228 sctp_ssnmap_size 0-1-2 8228 NULL
++check_xattr_ref_inode_8244 check_xattr_ref_inode 0 8244 NULL
++t3_init_l2t_8261 t3_init_l2t 1 8261 NULL
++init_cdev_8274 init_cdev 1 8274 NULL
++rproc_recovery_write_8281 rproc_recovery_write 3 8281 NULL
++qib_decode_7220_err_8315 qib_decode_7220_err 3 8315 NULL
++ipwireless_send_packet_8328 ipwireless_send_packet 4 8328 NULL
++tracing_entries_read_8345 tracing_entries_read 3 8345 NULL
++ieee80211_if_fmt_ht_opmode_8347 ieee80211_if_fmt_ht_opmode 3 8347 NULL
++generic_write_sync_8358 generic_write_sync 0 8358 NULL
++ping_getfrag_8360 ping_getfrag 4-3 8360 NULL
++ath6kl_lrssi_roam_write_8362 ath6kl_lrssi_roam_write 3 8362 NULL
++xdi_copy_from_user_8395 xdi_copy_from_user 4 8395 NULL
++zd_rf_scnprint_id_8406 zd_rf_scnprint_id 0-3 8406 NULL
++smk_write_change_rule_8411 smk_write_change_rule 3 8411 NULL nohasharray
++uvc_v4l2_ioctl_8411 uvc_v4l2_ioctl 2 8411 &smk_write_change_rule_8411
++roccat_common2_sysfs_read_8431 roccat_common2_sysfs_read 6 8431 NULL
++afs_cell_lookup_8482 afs_cell_lookup 2 8482 NULL
++fore200e_chunk_alloc_8501 fore200e_chunk_alloc 4-3 8501 NULL
++batadv_tt_len_8502 batadv_tt_len 0-1 8502 NULL
++dev_config_8506 dev_config 3 8506 NULL
++ACL_to_cifs_posix_8509 ACL_to_cifs_posix 3 8509 NULL
++opticon_process_data_packet_8524 opticon_process_data_packet 3 8524 NULL
++user_on_off_8552 user_on_off 2 8552 NULL
++profile_remove_8556 profile_remove 3 8556 NULL
++cache_slow_downcall_8570 cache_slow_downcall 2 8570 NULL
++isr_dma0_done_read_8574 isr_dma0_done_read 3 8574 NULL
++tower_write_8580 tower_write 3 8580 NULL
++cfs_cpt_number_8618 cfs_cpt_number 0 8618 NULL
++shash_setkey_unaligned_8620 shash_setkey_unaligned 3 8620 NULL
++xfs_qm_dqattach_locked_8625 xfs_qm_dqattach_locked 0 8625 NULL
++it821x_firmware_command_8628 it821x_firmware_command 3 8628 NULL
++scsi_dma_map_8632 scsi_dma_map 0 8632 NULL
++fuse_send_write_pages_8636 fuse_send_write_pages 0-5 8636 NULL
++mlx5_vzalloc_8663 mlx5_vzalloc 1 8663 NULL
++dio_bio_alloc_8677 dio_bio_alloc 5 8677 NULL
++lbs_bcnmiss_read_8678 lbs_bcnmiss_read 3 8678 NULL
++rproc_trace_read_8686 rproc_trace_read 3 8686 NULL
++skb_frag_size_8695 skb_frag_size 0 8695 NULL
++arcfb_write_8702 arcfb_write 3 8702 NULL
++i_size_read_8703 i_size_read 0 8703 NULL nohasharray
++init_header_8703 init_header 0 8703 &i_size_read_8703
++HDLC_irq_8709 HDLC_irq 2 8709 NULL
++ctrl_out_8712 ctrl_out 3-5 8712 NULL
++tracing_max_lat_write_8728 tracing_max_lat_write 3 8728 NULL
++jffs2_acl_count_8729 jffs2_acl_count 0-1 8729 NULL
++__create_irqs_8733 __create_irqs 2 8733 NULL
++tx_tx_exch_expiry_read_8749 tx_tx_exch_expiry_read 3 8749 NULL
++compound_order_8750 compound_order 0 8750 NULL
++ocfs2_find_path_8754 ocfs2_find_path 0 8754 NULL
++yurex_write_8761 yurex_write 3 8761 NULL
++joydev_compat_ioctl_8765 joydev_compat_ioctl 2 8765 NULL
++kstrtoint_from_user_8778 kstrtoint_from_user 2 8778 NULL
++paging32_prefetch_gpte_8783 paging32_prefetch_gpte 4 8783 NULL
++ext4_try_to_write_inline_data_8785 ext4_try_to_write_inline_data 3-4 8785 NULL
++__bitmap_weight_8796 __bitmap_weight 0-2 8796 NULL
++gfs2_glock_nq_8808 gfs2_glock_nq 0 8808 NULL
++ntfs_commit_pages_after_write_8809 ntfs_commit_pages_after_write 0 8809 NULL
++metronomefb_write_8823 metronomefb_write 3 8823 NULL
++SyS_llistxattr_8824 SyS_llistxattr 3 8824 NULL
++extent_read_full_page_8826 extent_read_full_page 0 8826 NULL
++ll_xattr_cache_get_8829 ll_xattr_cache_get 0 8829 NULL
++get_queue_depth_8833 get_queue_depth 0 8833 NULL
++dvb_ringbuffer_pkt_next_8834 dvb_ringbuffer_pkt_next 0-2 8834 NULL
++usb_ep_queue_8839 usb_ep_queue 0 8839 NULL
++iwl_rx_packet_len_8854 iwl_rx_packet_len 0 8854 NULL
++debug_debug1_read_8856 debug_debug1_read 3 8856 NULL
++wa_nep_queue_8858 wa_nep_queue 2 8858 NULL
++radeon_drm_ioctl_8875 radeon_drm_ioctl 2 8875 NULL
++compressed_bio_size_8887 compressed_bio_size 0-2 8887 NULL
++ab3100_get_set_reg_8890 ab3100_get_set_reg 3 8890 NULL nohasharray
++tracing_max_lat_read_8890 tracing_max_lat_read 3 8890 &ab3100_get_set_reg_8890
++sdio_max_byte_size_8907 sdio_max_byte_size 0 8907 NULL
++sysfs_merge_group_8917 sysfs_merge_group 0 8917 NULL
++write_file_ani_8918 write_file_ani 3 8918 NULL
++layout_commit_8926 layout_commit 3 8926 NULL
++adjust_priv_size_8935 adjust_priv_size 0-1 8935 NULL
++driver_stats_read_8944 driver_stats_read 3 8944 NULL
++read_file_tgt_stats_8959 read_file_tgt_stats 3 8959 NULL
++usb_allocate_stream_buffers_8964 usb_allocate_stream_buffers 3 8964 NULL
++qib_qsfp_dump_8966 qib_qsfp_dump 0-3 8966 NULL
++venus_mkdir_8967 venus_mkdir 4 8967 NULL
++seq_open_net_8968 seq_open_net 4 8968 NULL nohasharray
++vol_cdev_read_8968 vol_cdev_read 3 8968 &seq_open_net_8968
++bio_integrity_get_tag_8974 bio_integrity_get_tag 3 8974 NULL
++jbd2_journal_blocks_per_page_9004 jbd2_journal_blocks_per_page 0 9004 NULL
++il_dbgfs_clear_ucode_stats_write_9016 il_dbgfs_clear_ucode_stats_write 3 9016 NULL
++xfs_inobt_get_rec_9023 xfs_inobt_get_rec 0 9023 NULL
++snd_emu10k1_ptr_read_9026 snd_emu10k1_ptr_read 0-2 9026 NULL
++fd_ioctl_9028 fd_ioctl 3 9028 NULL
++nla_put_9042 nla_put 3 9042 NULL
++ffs_func_revmap_intf_9043 ffs_func_revmap_intf 0 9043 NULL
++sta_tx_latency_stat_header_9050 sta_tx_latency_stat_header 0-3-4 9050 NULL
++snd_emu10k1_synth_copy_from_user_9061 snd_emu10k1_synth_copy_from_user 3-5 9061 NULL
++snd_gus_dram_peek_9062 snd_gus_dram_peek 4 9062 NULL
++fib_info_hash_alloc_9075 fib_info_hash_alloc 1 9075 NULL
++create_queues_9088 create_queues 2-3 9088 NULL
++ftdi_prepare_write_buffer_9093 ftdi_prepare_write_buffer 3 9093 NULL
++adxl34x_spi_read_block_9108 adxl34x_spi_read_block 3 9108 NULL
++caif_stream_sendmsg_9110 caif_stream_sendmsg 4 9110 NULL nohasharray
++gfn_to_rmap_9110 gfn_to_rmap 3-2 9110 &caif_stream_sendmsg_9110 nohasharray
++jhead_scan_9110 jhead_scan 0 9110 &gfn_to_rmap_9110
++udf_direct_IO_9111 udf_direct_IO 4 9111 NULL
++pmcraid_change_queue_depth_9116 pmcraid_change_queue_depth 2 9116 NULL
++apei_resources_merge_9149 apei_resources_merge 0 9149 NULL
++vb2_dma_sg_alloc_9157 vb2_dma_sg_alloc 2 9157 NULL
++dbg_command_buf_9165 dbg_command_buf 2 9165 NULL
++isr_irqs_read_9181 isr_irqs_read 3 9181 NULL
++count_leading_zeros_9183 count_leading_zeros 0 9183 NULL
++xfs_btree_rshift_9187 xfs_btree_rshift 0 9187 NULL
++altera_swap_ir_9194 altera_swap_ir 2 9194 NULL
++snd_m3_get_pointer_9206 snd_m3_get_pointer 0 9206 NULL
++virtqueue_add_9217 virtqueue_add 4-5 9217 NULL
++tx_tx_prepared_descs_read_9221 tx_tx_prepared_descs_read 3 9221 NULL
++sctp_getsockopt_delayed_ack_9232 sctp_getsockopt_delayed_ack 2 9232 NULL
++xfs_error_trap_9239 xfs_error_trap 0-1 9239 NULL
++hfsplus_bnode_read_u16_9262 hfsplus_bnode_read_u16 0 9262 NULL
++hdpvr_read_9273 hdpvr_read 3 9273 NULL
++flakey_status_9274 flakey_status 5 9274 NULL
++iwl_dbgfs_stations_read_9309 iwl_dbgfs_stations_read 3 9309 NULL
++ceph_sync_setxattr_9310 ceph_sync_setxattr 4 9310 NULL
++ieee80211_if_fmt_txpower_9334 ieee80211_if_fmt_txpower 3 9334 NULL
++nvme_trans_fmt_get_parm_header_9340 nvme_trans_fmt_get_parm_header 2 9340 NULL
++ocfs2_orphan_for_truncate_9342 ocfs2_orphan_for_truncate 4 9342 NULL
++ll_direct_rw_pages_9361 ll_direct_rw_pages 0 9361 NULL
++sta_beacon_loss_count_read_9370 sta_beacon_loss_count_read 3 9370 NULL
++get_request_type_9393 get_request_type 0 9393 NULL nohasharray
++mlx4_bitmap_init_9393 mlx4_bitmap_init 5-2 9393 &get_request_type_9393
++virtqueue_add_outbuf_9395 virtqueue_add_outbuf 3 9395 NULL
++read_9397 read 3 9397 NULL
++hash_ipportip4_expire_9415 hash_ipportip4_expire 4 9415 NULL
++btrfs_drop_extents_9423 btrfs_drop_extents 4 9423 NULL
++bm_realloc_pages_9431 bm_realloc_pages 2 9431 NULL
++ffs_ep0_write_9438 ffs_ep0_write 3 9438 NULL
++ieee80211_if_fmt_fwded_unicast_9454 ieee80211_if_fmt_fwded_unicast 3 9454 NULL
++agp_generic_alloc_user_9470 agp_generic_alloc_user 1 9470 NULL nohasharray
++get_registers_9470 get_registers 4 9470 &agp_generic_alloc_user_9470
++crypt_status_9492 crypt_status 5 9492 NULL
++lbs_threshold_write_9502 lbs_threshold_write 5 9502 NULL
++lp_write_9511 lp_write 3 9511 NULL
++mext_calc_swap_extents_9517 mext_calc_swap_extents 4 9517 NULL
++scsi_tgt_kspace_exec_9522 scsi_tgt_kspace_exec 8 9522 NULL
++ll_max_read_ahead_whole_mb_seq_write_9528 ll_max_read_ahead_whole_mb_seq_write 3 9528 NULL
++read_file_dma_9530 read_file_dma 3 9530 NULL
++iwl_dbgfs_bf_params_read_9542 iwl_dbgfs_bf_params_read 3 9542 NULL
++xfs_ialloc_read_agi_9545 xfs_ialloc_read_agi 0 9545 NULL
++il_dbgfs_missed_beacon_write_9546 il_dbgfs_missed_beacon_write 3 9546 NULL
++compat_SyS_pwritev64_9548 compat_SyS_pwritev64 3 9548 NULL
++fw_node_create_9559 fw_node_create 2 9559 NULL
++kobj_map_9566 kobj_map 2-3 9566 NULL
++f2fs_read_data_pages_9574 f2fs_read_data_pages 4 9574 NULL
++snd_emu10k1_fx8010_read_9605 snd_emu10k1_fx8010_read 5-6 9605 NULL
++xfs_qm_dqattach_one_9612 xfs_qm_dqattach_one 0 9612 NULL
++lov_ost_pool_add_9626 lov_ost_pool_add 3 9626 NULL
++saa7164_buffer_alloc_user_9627 saa7164_buffer_alloc_user 2 9627 NULL
++ceph_copy_user_to_page_vector_9635 ceph_copy_user_to_page_vector 4-3 9635 NULL
++acpi_ex_insert_into_field_9638 acpi_ex_insert_into_field 3 9638 NULL
++compat_sys_keyctl_9639 compat_sys_keyctl 4 9639 NULL
++ll_checksum_seq_write_9648 ll_checksum_seq_write 3 9648 NULL
++ocfs2_xattr_get_rec_9652 ocfs2_xattr_get_rec 0 9652 NULL
++queue_received_packet_9657 queue_received_packet 5 9657 NULL
++snd_opl4_mem_proc_write_9670 snd_opl4_mem_proc_write 5 9670 NULL
++dns_query_9676 dns_query 3 9676 NULL
++qib_7322_handle_hwerrors_9678 qib_7322_handle_hwerrors 3 9678 NULL
++__erst_read_from_storage_9690 __erst_read_from_storage 0 9690 NULL
++vx_transfer_end_9701 vx_transfer_end 0 9701 NULL
++fuse_iter_npages_9705 fuse_iter_npages 0 9705 NULL nohasharray
++ieee80211_if_read_aid_9705 ieee80211_if_read_aid 3 9705 &fuse_iter_npages_9705
++cfg80211_tx_mlme_mgmt_9715 cfg80211_tx_mlme_mgmt 3 9715 NULL
++btrfs_stack_file_extent_num_bytes_9720 btrfs_stack_file_extent_num_bytes 0 9720 NULL
++SYSC_ppoll_9721 SYSC_ppoll 2 9721 NULL
++nla_get_u8_9736 nla_get_u8 0 9736 NULL
++ieee80211_if_fmt_num_mcast_sta_9738 ieee80211_if_fmt_num_mcast_sta 3 9738 NULL
++shmem_replace_page_9740 shmem_replace_page 0 9740 NULL
++ddb_input_read_9743 ddb_input_read 3-0 9743 NULL
++sta_last_ack_signal_read_9751 sta_last_ack_signal_read 3 9751 NULL
++btrfs_super_root_9763 btrfs_super_root 0 9763 NULL
++__blk_queue_init_tags_9778 __blk_queue_init_tags 2 9778 NULL
++kvm_age_hva_9795 kvm_age_hva 2 9795 NULL
++parse_uac2_sample_rate_range_9801 parse_uac2_sample_rate_range 0 9801 NULL
++tpm_data_in_9802 tpm_data_in 0 9802 NULL
++ieee80211_if_read_state_9813 ieee80211_if_read_state 3 9813 NULL nohasharray
++udpv6_recvmsg_9813 udpv6_recvmsg 4 9813 &ieee80211_if_read_state_9813
++pmcraid_alloc_sglist_9864 pmcraid_alloc_sglist 1 9864 NULL
++btrfs_free_reserved_extent_9867 btrfs_free_reserved_extent 2 9867 NULL
++f1x_translate_sysaddr_to_cs_9868 f1x_translate_sysaddr_to_cs 2 9868 NULL
++wil_read_file_ioblob_9878 wil_read_file_ioblob 3 9878 NULL
++snd_midi_event_new_9893 snd_midi_event_new 1 9893 NULL nohasharray
++bm_register_write_9893 bm_register_write 3 9893 &snd_midi_event_new_9893
++snd_gf1_pcm_playback_copy_9895 snd_gf1_pcm_playback_copy 5-3 9895 NULL
++nonpaging_page_fault_9908 nonpaging_page_fault 2 9908 NULL
++root_nfs_parse_options_9937 root_nfs_parse_options 3 9937 NULL
++pstore_ftrace_knob_read_9947 pstore_ftrace_knob_read 3 9947 NULL
++read_file_misc_9948 read_file_misc 3 9948 NULL
++csum_partial_copy_fromiovecend_9957 csum_partial_copy_fromiovecend 3-4 9957 NULL
++xfs_buf_geterror_9959 xfs_buf_geterror 0 9959 NULL
++SyS_gethostname_9964 SyS_gethostname 2 9964 NULL
++get_free_serial_index_9969 get_free_serial_index 0 9969 NULL
++btrfs_add_link_9973 btrfs_add_link 5 9973 NULL
++gameport_read_9983 gameport_read 0 9983 NULL
++SYSC_move_pages_9986 SYSC_move_pages 2 9986 NULL
++ceph_oloc_oid_to_pg_10003 ceph_oloc_oid_to_pg 0 10003 NULL
++aat2870_dump_reg_10019 aat2870_dump_reg 0 10019 NULL
++ieee80211_set_probe_resp_10077 ieee80211_set_probe_resp 3 10077 NULL
++xfs_attr_rmtval_get_10092 xfs_attr_rmtval_get 0 10092 NULL
++xfs_btree_check_lptr_10104 xfs_btree_check_lptr 0 10104 NULL
++get_elem_size_10110 get_elem_size 0-2 10110 NULL nohasharray
++dynamic_ps_timeout_read_10110 dynamic_ps_timeout_read 3 10110 &get_elem_size_10110
++gfs2_meta_read_10112 gfs2_meta_read 0 10112 NULL
++SyS_migrate_pages_10134 SyS_migrate_pages 2 10134 NULL
++aes_decrypt_packets_read_10155 aes_decrypt_packets_read 3 10155 NULL
++rx_out_of_mem_read_10157 rx_out_of_mem_read 3 10157 NULL
++hidg_alloc_ep_req_10159 hidg_alloc_ep_req 2 10159 NULL
++asd_store_update_bios_10165 asd_store_update_bios 4 10165 NULL
++kstrtol_from_user_10168 kstrtol_from_user 2 10168 NULL
++persistent_ram_vmap_10169 persistent_ram_vmap 2-1 10169 NULL
++proc_pid_attr_read_10173 proc_pid_attr_read 3 10173 NULL
++jffs2_user_setxattr_10182 jffs2_user_setxattr 4 10182 NULL
++xfs_attr_rmtval_copyout_10222 xfs_attr_rmtval_copyout 0 10222 NULL nohasharray
++xfs_btree_read_buf_block_10222 xfs_btree_read_buf_block 0 10222 &xfs_attr_rmtval_copyout_10222
++hdlc_rpr_irq_10240 hdlc_rpr_irq 2 10240 NULL
++cciss_proc_write_10259 cciss_proc_write 3 10259 NULL
++__qlcnic_pci_sriov_enable_10281 __qlcnic_pci_sriov_enable 2 10281 NULL
++snd_rme9652_capture_copy_10287 snd_rme9652_capture_copy 5 10287 NULL
++read_emulate_10310 read_emulate 2-4 10310 NULL
++read_file_spectral_count_10320 read_file_spectral_count 3 10320 NULL
++compat_SyS_writev_10327 compat_SyS_writev 3 10327 NULL
++tun_sendmsg_10337 tun_sendmsg 4 10337 NULL
++ufx_alloc_urb_list_10349 ufx_alloc_urb_list 3 10349 NULL
++whci_add_cap_10350 whci_add_cap 0 10350 NULL
++dbAllocAny_10354 dbAllocAny 0 10354 NULL
++ath6kl_listen_int_read_10355 ath6kl_listen_int_read 3 10355 NULL
++ms_write_multiple_pages_10362 ms_write_multiple_pages 6-5 10362 NULL
++sta_ht_capa_read_10366 sta_ht_capa_read 3 10366 NULL
++ecryptfs_decode_and_decrypt_filename_10379 ecryptfs_decode_and_decrypt_filename 5 10379 NULL
++do_compat_pselect_10398 do_compat_pselect 1 10398 NULL
++fwtty_rx_10434 fwtty_rx 3 10434 NULL
++event_phy_transmit_error_read_10471 event_phy_transmit_error_read 3 10471 NULL
++hash_ipportip6_expire_10478 hash_ipportip6_expire 4 10478 NULL
++nouveau_pwr_create__10483 nouveau_pwr_create_ 4 10483 NULL
++ext4_itable_unused_count_10501 ext4_itable_unused_count 0 10501 NULL
++qib_alloc_fast_reg_page_list_10507 qib_alloc_fast_reg_page_list 2 10507 NULL
++sel_write_disable_10511 sel_write_disable 3 10511 NULL
++osd_req_write_sg_kern_10514 osd_req_write_sg_kern 5 10514 NULL
++rds_message_alloc_10517 rds_message_alloc 1 10517 NULL
++qlcnic_pci_sriov_enable_10519 qlcnic_pci_sriov_enable 2 10519 NULL
++kstrtouint_from_user_10536 kstrtouint_from_user 2 10536 NULL nohasharray
++snd_pcm_lib_read_10536 snd_pcm_lib_read 0-3 10536 &kstrtouint_from_user_10536
++ext4_write_begin_10576 ext4_write_begin 3-4 10576 NULL
++scrub_remap_extent_10588 scrub_remap_extent 2 10588 NULL
++otp_read_10594 otp_read 2-4-5 10594 NULL
++supply_map_read_file_10608 supply_map_read_file 3 10608 NULL
++ima_show_htable_violations_10619 ima_show_htable_violations 3 10619 NULL
++fq_alloc_node_10633 fq_alloc_node 1 10633 NULL
++nfs_idmap_lookup_id_10660 nfs_idmap_lookup_id 2 10660 NULL
++efx_max_tx_len_10662 efx_max_tx_len 0-2 10662 NULL
++parport_write_10669 parport_write 0 10669 NULL
++edge_write_10692 edge_write 4 10692 NULL
++selinux_inode_setxattr_10708 selinux_inode_setxattr 4 10708 NULL nohasharray
++inl_10708 inl 0 10708 &selinux_inode_setxattr_10708
++shash_async_setkey_10720 shash_async_setkey 3 10720 NULL nohasharray
++pvr2_ioread_read_10720 pvr2_ioread_read 3 10720 &shash_async_setkey_10720
++spi_sync_10731 spi_sync 0 10731 NULL
++sctp_getsockopt_maxseg_10737 sctp_getsockopt_maxseg 2 10737 NULL nohasharray
++apu_get_register_10737 apu_get_register 0 10737 &sctp_getsockopt_maxseg_10737
++SyS_io_getevents_10756 SyS_io_getevents 3 10756 NULL
++vhost_add_used_n_10760 vhost_add_used_n 3 10760 NULL
++rd_build_prot_space_10761 rd_build_prot_space 2-3 10761 NULL
++kvm_read_guest_atomic_10765 kvm_read_guest_atomic 4 10765 NULL
++__qp_memcpy_to_queue_10779 __qp_memcpy_to_queue 2-4 10779 NULL
++ttm_dma_page_pool_free_10796 ttm_dma_page_pool_free 2-0 10796 NULL
++diva_set_trace_filter_10820 diva_set_trace_filter 0-1 10820 NULL
++lbs_sleepparams_read_10840 lbs_sleepparams_read 3 10840 NULL
++ida_get_new_above_10853 ida_get_new_above 0 10853 NULL
++fuse_conn_max_background_read_10855 fuse_conn_max_background_read 3 10855 NULL
++snd_pcm_oss_write1_10872 snd_pcm_oss_write1 3 10872 NULL
++wiidebug_drm_write_10879 wiidebug_drm_write 3 10879 NULL
++get_scq_10897 get_scq 2 10897 NULL
++tifm_alloc_adapter_10903 tifm_alloc_adapter 1 10903 NULL
++lprocfs_wr_atomic_10912 lprocfs_wr_atomic 3 10912 NULL
++__copy_from_user_10918 __copy_from_user 0-3 10918 NULL
++kobject_add_10919 kobject_add 0 10919 NULL
++ar9003_dump_modal_eeprom_10959 ar9003_dump_modal_eeprom 3-2-0 10959 NULL
++ci_port_test_write_10962 ci_port_test_write 3 10962 NULL
++bm_entry_read_10976 bm_entry_read 3 10976 NULL
++sched_autogroup_write_10984 sched_autogroup_write 3 10984 NULL
++xfrm_hash_alloc_10997 xfrm_hash_alloc 1 10997 NULL
++rx_filter_accum_arp_pend_requests_read_11003 rx_filter_accum_arp_pend_requests_read 3 11003 NULL
++gfs2_dir_read_11017 gfs2_dir_read 0 11017 NULL
++SetLineNumber_11023 SetLineNumber 0 11023 NULL
++tda10048_writeregbulk_11050 tda10048_writeregbulk 4 11050 NULL
++insert_inline_extent_backref_11063 insert_inline_extent_backref 8 11063 NULL
++tcp_send_mss_11079 tcp_send_mss 0 11079 NULL
++count_argc_11083 count_argc 0 11083 NULL
++kvm_write_guest_cached_11106 kvm_write_guest_cached 4 11106 NULL
++tw_change_queue_depth_11116 tw_change_queue_depth 2 11116 NULL
++page_offset_11120 page_offset 0 11120 NULL
++cea_db_payload_len_11124 cea_db_payload_len 0 11124 NULL nohasharray
++tracing_buffers_read_11124 tracing_buffers_read 3 11124 &cea_db_payload_len_11124
++alloc_alien_cache_11127 alloc_alien_cache 2 11127 NULL
++snd_gf1_pcm_playback_silence_11172 snd_gf1_pcm_playback_silence 4-3 11172 NULL
++il_dbgfs_rx_queue_read_11221 il_dbgfs_rx_queue_read 3 11221 NULL
++comedi_alloc_spriv_11234 comedi_alloc_spriv 2 11234 NULL
++hugetlbfs_read_11268 hugetlbfs_read 3 11268 NULL
++ath6kl_power_params_write_11274 ath6kl_power_params_write 3 11274 NULL
++__proc_daemon_file_11305 __proc_daemon_file 5 11305 NULL
++ext4_xattr_check_names_11314 ext4_xattr_check_names 0 11314 NULL
++bcache_dev_sectors_dirty_add_11315 bcache_dev_sectors_dirty_add 3-4 11315 NULL
++sk_filter_size_11316 sk_filter_size 0 11316 NULL nohasharray
++tcp_send_rcvq_11316 tcp_send_rcvq 3 11316 &sk_filter_size_11316
++shmem_radix_tree_replace_11325 shmem_radix_tree_replace 0 11325 NULL
++construct_key_11329 construct_key 3 11329 NULL nohasharray
++__kfifo_out_peek_11329 __kfifo_out_peek 0-3 11329 &construct_key_11329
++next_segment_11330 next_segment 0-2-1 11330 NULL
++persistent_ram_buffer_map_11332 persistent_ram_buffer_map 2-1 11332 NULL
++ext4_get_inline_size_11349 ext4_get_inline_size 0 11349 NULL
++sel_write_create_11353 sel_write_create 3 11353 NULL nohasharray
++nl80211_send_mgmt_11353 nl80211_send_mgmt 7 11353 &sel_write_create_11353
++qib_get_base_info_11369 qib_get_base_info 3 11369 NULL
++nft_value_dump_11381 nft_value_dump 3 11381 NULL
++isku_sysfs_read_keys_capslock_11392 isku_sysfs_read_keys_capslock 6 11392 NULL
++dev_irnet_write_11398 dev_irnet_write 3 11398 NULL
++lprocfs_wr_evict_client_11402 lprocfs_wr_evict_client 3 11402 NULL
++___alloc_bootmem_11410 ___alloc_bootmem 1 11410 NULL
++str_to_user_11411 str_to_user 2 11411 NULL
++mem_fw_gen_free_mem_blks_read_11413 mem_fw_gen_free_mem_blks_read 3 11413 NULL
++ath6kl_wmi_test_rx_11414 ath6kl_wmi_test_rx 3 11414 NULL
++xfs_btree_lookup_11417 xfs_btree_lookup 0 11417 NULL nohasharray
++adis16480_show_firmware_revision_11417 adis16480_show_firmware_revision 3 11417 &xfs_btree_lookup_11417
++trace_options_read_11419 trace_options_read 3 11419 NULL
++i40e_dbg_command_write_11421 i40e_dbg_command_write 3 11421 NULL
++xd_read_multiple_pages_11422 xd_read_multiple_pages 5-4 11422 NULL
++bttv_read_11432 bttv_read 3 11432 NULL
++create_zero_mask_11453 create_zero_mask 0-1 11453 NULL
++do_blockdev_direct_IO_11455 do_blockdev_direct_IO 0-6 11455 NULL
++pci_set_power_state_11479 pci_set_power_state 0 11479 NULL nohasharray
++sca3000_read_first_n_hw_rb_11479 sca3000_read_first_n_hw_rb 2 11479 &pci_set_power_state_11479
++xfs_file_buffered_aio_write_11492 xfs_file_buffered_aio_write 4-0 11492 NULL
++sd_do_mode_sense_11507 sd_do_mode_sense 5 11507 NULL
++kmem_zalloc_11510 kmem_zalloc 1 11510 NULL
++ll_direct_IO_26_seg_11518 ll_direct_IO_26_seg 0 11518 NULL
++twl_direction_in_11527 twl_direction_in 2 11527 NULL
++xfs_rtcheck_alloc_range_11553 xfs_rtcheck_alloc_range 0 11553 NULL
++radix_tree_extend_11555 radix_tree_extend 0 11555 NULL
++skb_cow_data_11565 skb_cow_data 0 11565 NULL
++lpfc_idiag_ctlacc_write_11576 lpfc_idiag_ctlacc_write 3 11576 NULL nohasharray
++rts51x_write_ppbuf_11576 rts51x_write_ppbuf 3 11576 &lpfc_idiag_ctlacc_write_11576
++oprofilefs_ulong_to_user_11582 oprofilefs_ulong_to_user 3 11582 NULL
++batadv_iv_ogm_orig_add_if_11586 batadv_iv_ogm_orig_add_if 2 11586 NULL
++snd_pcm_action_11589 snd_pcm_action 0 11589 NULL
++fw_device_op_ioctl_11595 fw_device_op_ioctl 2 11595 NULL
++batadv_iv_ogm_orig_del_if_11604 batadv_iv_ogm_orig_del_if 2 11604 NULL
++SYSC_mq_timedsend_11607 SYSC_mq_timedsend 3 11607 NULL
++sisusb_send_bridge_packet_11649 sisusb_send_bridge_packet 2 11649 NULL
++nla_total_size_11658 nla_total_size 1-0 11658 NULL
++slab_ksize_11664 slab_ksize 0 11664 NULL
++ide_queue_pc_tail_11673 ide_queue_pc_tail 5 11673 NULL
++compat_SyS_msgsnd_11675 compat_SyS_msgsnd 3 11675 NULL
++btrfs_alloc_delayed_item_11678 btrfs_alloc_delayed_item 1 11678 NULL
++sctp_setsockopt_hmac_ident_11687 sctp_setsockopt_hmac_ident 3 11687 NULL
++split_11691 split 2 11691 NULL
++snd_ctl_elem_user_tlv_11695 snd_ctl_elem_user_tlv 3 11695 NULL
++blk_rq_cur_bytes_11723 blk_rq_cur_bytes 0 11723 NULL
++dm_bio_prison_create_11749 dm_bio_prison_create 1 11749 NULL
++iwl_dbgfs_qos_read_11753 iwl_dbgfs_qos_read 3 11753 NULL
++ieee80211_get_num_supported_channels_11768 ieee80211_get_num_supported_channels 0 11768 NULL
++ps_pspoll_timeouts_read_11776 ps_pspoll_timeouts_read 3 11776 NULL
++btrfs_key_blockptr_11786 btrfs_key_blockptr 0 11786 NULL
++pcpu_fc_alloc_11818 pcpu_fc_alloc 2 11818 NULL
++xfs_ialloc_11819 xfs_ialloc 0 11819 NULL
++umc_device_register_11824 umc_device_register 0 11824 NULL
++zerocopy_sg_from_iovec_11828 zerocopy_sg_from_iovec 3 11828 NULL
++sctp_setsockopt_maxseg_11829 sctp_setsockopt_maxseg 3 11829 NULL
++rts51x_read_status_11830 rts51x_read_status 4 11830 NULL
++unix_stream_connect_11844 unix_stream_connect 3 11844 NULL
++xfs_file_aio_write_checks_11851 xfs_file_aio_write_checks 0 11851 NULL
++ecryptfs_copy_filename_11868 ecryptfs_copy_filename 4 11868 NULL
++ieee80211_rx_bss_info_11887 ieee80211_rx_bss_info 3 11887 NULL
++mdc_rename_11899 mdc_rename 4-6 11899 NULL
++xstateregs_get_11906 xstateregs_get 4 11906 NULL
++ti_write_11916 ti_write 4 11916 NULL
++fs_devrw_entry_11924 fs_devrw_entry 3 11924 NULL
++bitmap_remap_11929 bitmap_remap 5 11929 NULL
++atomic_sub_return_11939 atomic_sub_return 0-1 11939 NULL
++r1_sync_page_io_11963 r1_sync_page_io 3 11963 NULL
++f1x_swap_interleaved_region_11970 f1x_swap_interleaved_region 0-2 11970 NULL
++read_and_add_raw_conns_11987 read_and_add_raw_conns 0 11987 NULL
++i40e_pci_sriov_configure_12011 i40e_pci_sriov_configure 2 12011 NULL
++ftdi_elan_total_command_size_12045 ftdi_elan_total_command_size 0 12045 NULL
++ieee80211_if_read_user_power_level_12050 ieee80211_if_read_user_power_level 3 12050 NULL
++il4965_ucode_tx_stats_read_12064 il4965_ucode_tx_stats_read 3 12064 NULL
++ptc_proc_write_12076 ptc_proc_write 3 12076 NULL
++batadv_tt_global_size_mod_12085 batadv_tt_global_size_mod 3 12085 NULL
++rtw_malloc2d_12102 rtw_malloc2d 1-2-3 12102 NULL
++gfs2_find_jhead_12117 gfs2_find_jhead 0 12117 NULL
++alloc_bulk_urbs_generic_12127 alloc_bulk_urbs_generic 5 12127 NULL
++set_powered_12129 set_powered 4 12129 NULL
++ramoops_init_prz_12134 ramoops_init_prz 5 12134 NULL
++xfs_handle_to_dentry_12135 xfs_handle_to_dentry 3 12135 NULL
++rawv6_seticmpfilter_12137 rawv6_seticmpfilter 5 12137 NULL
++rawsock_recvmsg_12144 rawsock_recvmsg 4 12144 NULL
++btmrvl_sdio_host_to_card_12152 btmrvl_sdio_host_to_card 3 12152 NULL
++vmbus_open_12154 vmbus_open 2-3 12154 NULL
++fnic_reset_stats_write_12177 fnic_reset_stats_write 3 12177 NULL
++LNetEQAlloc_12178 LNetEQAlloc 1 12178 NULL
++ddp_make_gl_12179 ddp_make_gl 1 12179 NULL
++compat_do_arpt_set_ctl_12184 compat_do_arpt_set_ctl 4 12184 NULL
++ip_generic_getfrag_12187 ip_generic_getfrag 3-4 12187 NULL
++snd_pcm_kernel_ioctl_12219 snd_pcm_kernel_ioctl 0 12219 NULL
++fuse_get_req_12221 fuse_get_req 2 12221 NULL nohasharray
++aat2870_reg_read_file_12221 aat2870_reg_read_file 3 12221 &fuse_get_req_12221
++xfs_attr3_leaf_read_12222 xfs_attr3_leaf_read 0 12222 NULL
++__alloc_bootmem_low_nopanic_12235 __alloc_bootmem_low_nopanic 1 12235 NULL
++usnic_ib_qp_grp_dump_rows_12239 usnic_ib_qp_grp_dump_rows 3 12239 NULL
++ib_uverbs_unmarshall_recv_12251 ib_uverbs_unmarshall_recv 5 12251 NULL
++shash_compat_setkey_12267 shash_compat_setkey 3 12267 NULL
++add_sctp_bind_addr_12269 add_sctp_bind_addr 3 12269 NULL
++note_last_dentry_12285 note_last_dentry 3 12285 NULL
++roundup_to_multiple_of_64_12288 roundup_to_multiple_of_64 0-1 12288 NULL nohasharray
++il_dbgfs_nvm_read_12288 il_dbgfs_nvm_read 3 12288 &roundup_to_multiple_of_64_12288
++bt_sock_recvmsg_12316 bt_sock_recvmsg 4 12316 NULL
++usnic_transport_sock_to_str_12322 usnic_transport_sock_to_str 2-0 12322 NULL
++pcbit_writecmd_12332 pcbit_writecmd 2 12332 NULL
++xfs_bmap_last_extent_12335 xfs_bmap_last_extent 0 12335 NULL
++mptctl_ioctl_12355 mptctl_ioctl 2 12355 NULL
++__nf_ct_ext_add_length_12364 __nf_ct_ext_add_length 3 12364 NULL
++xfs_iext_inline_to_direct_12384 xfs_iext_inline_to_direct 2 12384 NULL
++populate_dir_12391 populate_dir 0 12391 NULL nohasharray
++write_file_dump_12391 write_file_dump 3 12391 &populate_dir_12391
++hbucket_elem_add_12416 hbucket_elem_add 3 12416 NULL
++ieee80211_if_read_num_mcast_sta_12419 ieee80211_if_read_num_mcast_sta 3 12419 NULL
++cfs_array_alloc_12441 cfs_array_alloc 2 12441 NULL
++skb_do_copy_data_nocache_12465 skb_do_copy_data_nocache 5 12465 NULL
++x25_sendmsg_12487 x25_sendmsg 4 12487 NULL
++fnic_trace_ctrl_read_12497 fnic_trace_ctrl_read 3 12497 NULL
++__ceph_osdc_start_request_12502 __ceph_osdc_start_request 0 12502 NULL
++qib_alloc_fast_reg_mr_12526 qib_alloc_fast_reg_mr 2 12526 NULL
++write_inode_now_12565 write_inode_now 0 12565 NULL
++hvc_alloc_12579 hvc_alloc 4 12579 NULL
++pcpu_extend_area_map_12589 pcpu_extend_area_map 2 12589 NULL
++tlbflush_write_file_12598 tlbflush_write_file 3 12598 NULL
++vhci_put_user_12604 vhci_put_user 4 12604 NULL
++sdhci_pltfm_init_12627 sdhci_pltfm_init 3 12627 NULL
++pwr_rcvd_awake_bcns_cnt_read_12632 pwr_rcvd_awake_bcns_cnt_read 3 12632 NULL
++pn_sendmsg_12640 pn_sendmsg 4 12640 NULL
++dwc3_link_state_write_12641 dwc3_link_state_write 3 12641 NULL
++nr_recvmsg_12649 nr_recvmsg 4 12649 NULL
++rtw_android_get_link_speed_12655 rtw_android_get_link_speed 0 12655 NULL
++ocfs2_read_block_12659 ocfs2_read_block 0 12659 NULL
++sel_read_class_12669 sel_read_class 3 12669 NULL nohasharray
++sparse_mem_maps_populate_node_12669 sparse_mem_maps_populate_node 4 12669 &sel_read_class_12669
++iwl_dbgfs_calib_disabled_write_12707 iwl_dbgfs_calib_disabled_write 3 12707 NULL
++ieee80211_if_read_num_buffered_multicast_12716 ieee80211_if_read_num_buffered_multicast 3 12716 NULL
++ivtv_write_12721 ivtv_write 3 12721 NULL
++key_rx_spec_read_12736 key_rx_spec_read 3 12736 NULL
++__mei_cl_async_send_12737 __mei_cl_async_send 3 12737 NULL
++ieee80211_if_read_dot11MeshMaxRetries_12756 ieee80211_if_read_dot11MeshMaxRetries 3 12756 NULL
++listxattr_12769 listxattr 3 12769 NULL
++sctp_ssnmap_init_12772 sctp_ssnmap_init 2-3 12772 NULL
++scsi_adjust_queue_depth_12802 scsi_adjust_queue_depth 3 12802 NULL
++xfs_inumbers_fmt_12817 xfs_inumbers_fmt 3 12817 NULL
++readq_12825 readq 0 12825 NULL
++SyS_add_key_12834 SyS_add_key 4 12834 NULL
++gfs2_log_reserve_12835 gfs2_log_reserve 0 12835 NULL
++TSS_authhmac_12839 TSS_authhmac 3 12839 NULL
++spidev_sync_12842 spidev_sync 0 12842 NULL
++spidev_ioctl_12846 spidev_ioctl 2 12846 NULL
++xfs_rtallocate_extent_exact_12865 xfs_rtallocate_extent_exact 0 12865 NULL
++ath9k_dump_4k_modal_eeprom_12883 ath9k_dump_4k_modal_eeprom 3-2 12883 NULL
++get_leb_cnt_12892 get_leb_cnt 0-2 12892 NULL
++get_virtual_node_size_12908 get_virtual_node_size 0 12908 NULL
++rds_pages_in_vec_12922 rds_pages_in_vec 0 12922 NULL
++do_inode_permission_12946 do_inode_permission 0 12946 NULL
++bm_status_write_12964 bm_status_write 3 12964 NULL
++raid56_parity_recover_12987 raid56_parity_recover 5 12987 NULL
++TransmitTcb_12989 TransmitTcb 4 12989 NULL
++sk_peek_offset_12991 sk_peek_offset 0 12991 NULL
++bset_prev_bytes_13020 bset_prev_bytes 0 13020 NULL
++subsystem_filter_write_13022 subsystem_filter_write 3 13022 NULL
++generic_segment_checks_13041 generic_segment_checks 0 13041 NULL
++ocfs2_write_begin_13045 ocfs2_write_begin 3-4 13045 NULL
++__dn_setsockopt_13060 __dn_setsockopt 5 13060 NULL nohasharray
++ptlrpc_lprocfs_threads_min_seq_write_13060 ptlrpc_lprocfs_threads_min_seq_write 3 13060 &__dn_setsockopt_13060
++biovec_create_pool_13079 biovec_create_pool 2 13079 NULL
++xattr_getsecurity_13090 xattr_getsecurity 0 13090 NULL
++ttm_dma_pool_alloc_new_pages_13105 ttm_dma_pool_alloc_new_pages 3 13105 NULL
++SyS_msgrcv_13109 SyS_msgrcv 3 13109 NULL
++snd_rme96_playback_copy_13111 snd_rme96_playback_copy 5 13111 NULL
++bfad_debugfs_read_13119 bfad_debugfs_read 3 13119 NULL
++blk_update_request_13146 blk_update_request 3 13146 NULL
++caif_stream_recvmsg_13173 caif_stream_recvmsg 4 13173 NULL
++pwr_disable_ps_read_13176 pwr_disable_ps_read 3 13176 NULL
++ucs2_strlen_13178 ucs2_strlen 0 13178 NULL
++dgrp_net_ioctl_13183 dgrp_net_ioctl 2 13183 NULL
++create_trace_uprobe_13184 create_trace_uprobe 1 13184 NULL
++comedi_read_13199 comedi_read 3 13199 NULL
++hash_ipport4_expire_13201 hash_ipport4_expire 4 13201 NULL
++mmc_ext_csd_read_13205 mmc_ext_csd_read 3 13205 NULL
++svm_msrpm_offset_13220 svm_msrpm_offset 0-1 13220 NULL
++fnic_trace_ctrl_write_13229 fnic_trace_ctrl_write 3 13229 NULL
++_iwl_dbgfs_disable_power_off_write_13243 _iwl_dbgfs_disable_power_off_write 3 13243 NULL
++asix_read_cmd_13245 asix_read_cmd 5 13245 NULL
++init_tid_tabs_13252 init_tid_tabs 2-3-4 13252 NULL
++bio_integrity_trim_13259 bio_integrity_trim 3-2 13259 NULL
++simple_attr_write_13260 simple_attr_write 3 13260 NULL
++pmcraid_notify_aen_13274 pmcraid_notify_aen 3 13274 NULL
++il4965_stats_flag_13281 il4965_stats_flag 0-3 13281 NULL
++lpfc_idiag_mbxacc_get_setup_13282 lpfc_idiag_mbxacc_get_setup 0 13282 NULL
++sd_major_13294 sd_major 0-1 13294 NULL
++module_param_sysfs_setup_13296 module_param_sysfs_setup 0 13296 NULL
++read_file_phy_err_13318 read_file_phy_err 3 13318 NULL
++kvm_read_nested_guest_page_13337 kvm_read_nested_guest_page 5 13337 NULL
++round_event_name_len_13348 round_event_name_len 0 13348 NULL
++hscx_empty_fifo_13360 hscx_empty_fifo 2 13360 NULL
++xfs_btree_delrec_13364 xfs_btree_delrec 0 13364 NULL
++iso_sched_alloc_13377 iso_sched_alloc 1 13377 NULL nohasharray
++wep_key_not_found_read_13377 wep_key_not_found_read 3 13377 &iso_sched_alloc_13377
++ext4_meta_trans_blocks_13380 ext4_meta_trans_blocks 0-3-2 13380 NULL
++lov_mds_md_size_13388 lov_mds_md_size 0-1 13388 NULL nohasharray
++dis_bypass_write_13388 dis_bypass_write 3 13388 &lov_mds_md_size_13388
++netxen_alloc_sds_rings_13417 netxen_alloc_sds_rings 2 13417 NULL
++sctp_setsockopt_peer_primary_addr_13440 sctp_setsockopt_peer_primary_addr 3 13440 NULL
++ath6kl_cfg80211_connect_event_13443 ath6kl_cfg80211_connect_event 8-9-7 13443 NULL
++sb_init_dio_done_wq_13482 sb_init_dio_done_wq 0 13482 NULL
++data_read_13494 data_read 3 13494 NULL
++ioat_chansts_32_13506 ioat_chansts_32 0 13506 NULL
++ocfs2_align_bytes_to_blocks_13512 ocfs2_align_bytes_to_blocks 0-2 13512 NULL
++core_status_13515 core_status 4 13515 NULL
++smk_write_mapped_13519 smk_write_mapped 3 13519 NULL
++bm_init_13529 bm_init 2 13529 NULL
++llcp_sock_recvmsg_13556 llcp_sock_recvmsg 4 13556 NULL
++ieee80211_if_read_ap_power_level_13558 ieee80211_if_read_ap_power_level 3 13558 NULL
++hash_net4_expire_13559 hash_net4_expire 4 13559 NULL
++read_file_antenna_13574 read_file_antenna 3 13574 NULL
++cache_write_13589 cache_write 3 13589 NULL
++Rd_Indx_13602 Rd_Indx 3-2 13602 NULL
++wm8994_bulk_write_13615 wm8994_bulk_write 2-3 13615 NULL
++__ntfs_grab_cache_pages_13617 __ntfs_grab_cache_pages 0 13617 NULL
++pmcraid_get_minor_13619 pmcraid_get_minor 0 13619 NULL
++packet_snd_13634 packet_snd 3 13634 NULL
++blk_msg_write_13655 blk_msg_write 3 13655 NULL
++cache_downcall_13666 cache_downcall 3 13666 NULL
++ext3_xattr_list_entries_13682 ext3_xattr_list_entries 0 13682 NULL
++nv94_aux_13689 nv94_aux 2-5 13689 NULL
++usb_get_string_13693 usb_get_string 0 13693 NULL
++fw_iso_buffer_alloc_13704 fw_iso_buffer_alloc 2 13704 NULL
++audit_unpack_string_13748 audit_unpack_string 3 13748 NULL
++ieee802154_alloc_device_13767 ieee802154_alloc_device 1 13767 NULL
++fb_sys_read_13778 fb_sys_read 3 13778 NULL
++ath6kl_mgmt_powersave_ap_13791 ath6kl_mgmt_powersave_ap 6 13791 NULL
++random_read_13815 random_read 3 13815 NULL
++mutex_lock_interruptible_nested_13817 mutex_lock_interruptible_nested 0 13817 NULL
++hsi_register_board_info_13820 hsi_register_board_info 2 13820 NULL
++___mei_cl_send_13821 ___mei_cl_send 3 13821 NULL
++enc_pools_insert_13849 enc_pools_insert 3 13849 NULL
++evdev_ioctl_compat_13851 evdev_ioctl_compat 2 13851 NULL
++compat_ip_setsockopt_13870 compat_ip_setsockopt 5 13870 NULL
++qp_memcpy_to_queue_13886 qp_memcpy_to_queue 5-2 13886 NULL
++snd_pcm_aio_read_13900 snd_pcm_aio_read 3 13900 NULL
++cfg80211_inform_bss_width_13933 cfg80211_inform_bss_width 9 13933 NULL
++ext3_xattr_block_get_13936 ext3_xattr_block_get 0 13936 NULL
++ieee80211_if_read_dot11MeshForwarding_13940 ieee80211_if_read_dot11MeshForwarding 3 13940 NULL nohasharray
++ocfs2_xa_value_truncate_13940 ocfs2_xa_value_truncate 2 13940 &ieee80211_if_read_dot11MeshForwarding_13940
++iwl_dbgfs_protection_mode_read_13943 iwl_dbgfs_protection_mode_read 3 13943 NULL
++ieee80211_if_read_min_discovery_timeout_13946 ieee80211_if_read_min_discovery_timeout 3 13946 NULL
++lpfc_idiag_queacc_read_13950 lpfc_idiag_queacc_read 3 13950 NULL nohasharray
++pagecache_write_end_13950 pagecache_write_end 0 13950 &lpfc_idiag_queacc_read_13950
++osc_grant_shrink_interval_seq_write_13952 osc_grant_shrink_interval_seq_write 3 13952 NULL
++ocfs2_refresh_slot_info_13957 ocfs2_refresh_slot_info 0 13957 NULL
++snd_pcm_plug_slave_size_13967 snd_pcm_plug_slave_size 0-2 13967 NULL
++qcam_read_13977 qcam_read 3 13977 NULL
++dsp_read_13980 dsp_read 2 13980 NULL
++dvb_demux_read_13981 dvb_demux_read 3 13981 NULL
++sddr09_write_data_14014 sddr09_write_data 3 14014 NULL
++btrfs_get_blocks_direct_14016 btrfs_get_blocks_direct 2 14016 NULL
++dmi_format_ids_14018 dmi_format_ids 2 14018 NULL
++iscsi_create_flashnode_conn_14022 iscsi_create_flashnode_conn 4 14022 NULL
++pci_add_ext_cap_save_buffer_14032 pci_add_ext_cap_save_buffer 3 14032 NULL
++dvb_usercopy_14036 dvb_usercopy 2 14036 NULL
++read_def_modal_eeprom_14041 read_def_modal_eeprom 3 14041 NULL
++xfs_bmap_alloc_14044 xfs_bmap_alloc 0 14044 NULL
++ieee80211_if_fmt_aid_14055 ieee80211_if_fmt_aid 3 14055 NULL
++ovs_nla_alloc_flow_actions_14056 ovs_nla_alloc_flow_actions 1 14056 NULL
++sta_agg_status_read_14058 sta_agg_status_read 3 14058 NULL
++lov_stripeoffset_seq_write_14078 lov_stripeoffset_seq_write 3 14078 NULL
++do_proc_readlink_14096 do_proc_readlink 3 14096 NULL
++compat_sys_pselect6_14105 compat_sys_pselect6 1 14105 NULL
++ext4_journal_blocks_per_page_14127 ext4_journal_blocks_per_page 0 14127 NULL
++isku_sysfs_read_light_14140 isku_sysfs_read_light 6 14140 NULL
++em_canid_change_14150 em_canid_change 3 14150 NULL
++gsm_dlci_data_14155 gsm_dlci_data 3 14155 NULL
++midi_alloc_ep_req_14159 midi_alloc_ep_req 2 14159 NULL
++print_input_mask_14168 print_input_mask 3-0 14168 NULL
++ocfs2_xattr_value_truncate_14183 ocfs2_xattr_value_truncate 3 14183 NULL
++datafab_read_data_14186 datafab_read_data 4 14186 NULL
++hfsplus_brec_find_14200 hfsplus_brec_find 0 14200 NULL
++alloc_async_14208 alloc_async 1 14208 NULL
++ath6kl_regread_write_14220 ath6kl_regread_write 3 14220 NULL
++ieee80211_if_write_uapsd_max_sp_len_14233 ieee80211_if_write_uapsd_max_sp_len 3 14233 NULL
++dma_declare_coherent_memory_14244 dma_declare_coherent_memory 4 14244 NULL
++btrfs_token_file_extent_ram_bytes_14247 btrfs_token_file_extent_ram_bytes 0 14247 NULL
++ath6kl_connect_event_14267 ath6kl_connect_event 7-8-9 14267 NULL
++rr_status_14293 rr_status 5 14293 NULL
++read_default_ldt_14302 read_default_ldt 2 14302 NULL
++update_rgrp_lvb_14303 update_rgrp_lvb 0 14303 NULL
++xfs_qm_qino_alloc_14309 xfs_qm_qino_alloc 0 14309 NULL
++oo_objects_14319 oo_objects 0 14319 NULL
++ll_get_user_pages_14328 ll_get_user_pages 3-2-0 14328 NULL
++p9_client_zc_rpc_14345 p9_client_zc_rpc 7 14345 NULL
++alloc_tx_struct_14349 alloc_tx_struct 1 14349 NULL
++hash_ipportnet4_expire_14354 hash_ipportnet4_expire 4 14354 NULL
++snd_pcm_lib_readv_14363 snd_pcm_lib_readv 0-3 14363 NULL
++lowpan_read_14369 lowpan_read 3 14369 NULL
++ath6kl_regdump_read_14393 ath6kl_regdump_read 3 14393 NULL
++smk_write_onlycap_14400 smk_write_onlycap 3 14400 NULL
++mtd_concat_create_14416 mtd_concat_create 2 14416 NULL
++get_kcore_size_14425 get_kcore_size 0 14425 NULL
++_iwl_dbgfs_sram_write_14439 _iwl_dbgfs_sram_write 3 14439 NULL
++block_size_14443 block_size 0 14443 NULL
++lmv_user_md_size_14456 lmv_user_md_size 0-1 14456 NULL
++snd_emu10k1_proc_spdif_status_14457 snd_emu10k1_proc_spdif_status 4-5 14457 NULL
++ath10k_write_htt_stats_mask_14458 ath10k_write_htt_stats_mask 3 14458 NULL
++lustre_msg_size_v2_14470 lustre_msg_size_v2 0 14470 NULL
++dma_transfer_size_14473 dma_transfer_size 0 14473 NULL
++udplite_getfrag_14479 udplite_getfrag 3-4 14479 NULL
++ieee80211_if_read_dot11MeshGateAnnouncementProtocol_14486 ieee80211_if_read_dot11MeshGateAnnouncementProtocol 3 14486 NULL
++split_state_14491 split_state 0 14491 NULL
++ocfs2_debug_read_14507 ocfs2_debug_read 3 14507 NULL
++ep0_write_14536 ep0_write 3 14536 NULL nohasharray
++dataflash_read_user_otp_14536 dataflash_read_user_otp 3-2 14536 &ep0_write_14536
++picolcd_debug_eeprom_read_14549 picolcd_debug_eeprom_read 3 14549 NULL
++qp_host_alloc_queue_14566 qp_host_alloc_queue 1 14566 NULL
++SyS_setdomainname_14569 SyS_setdomainname 2 14569 NULL
++stuffed_readpage_14581 stuffed_readpage 0 14581 NULL
++idmap_pipe_downcall_14591 idmap_pipe_downcall 3 14591 NULL
++ceph_osdc_alloc_request_14597 ceph_osdc_alloc_request 3 14597 NULL
++dbJoin_14644 dbJoin 0 14644 NULL
++profile_replace_14652 profile_replace 3 14652 NULL
++usnic_vnic_dump_14662 usnic_vnic_dump 3 14662 NULL
++add_to_page_cache_locked_14668 add_to_page_cache_locked 0 14668 NULL
++min_bytes_needed_14675 min_bytes_needed 0 14675 NULL
++nvme_trans_log_info_exceptions_14677 nvme_trans_log_info_exceptions 3 14677 NULL
++pipeline_enc_tx_stat_fifo_int_read_14680 pipeline_enc_tx_stat_fifo_int_read 3 14680 NULL
++ieee80211_if_fmt_rc_rateidx_mask_2ghz_14683 ieee80211_if_fmt_rc_rateidx_mask_2ghz 3 14683 NULL
++SyS_fsetxattr_14702 SyS_fsetxattr 4 14702 NULL
++persistent_ram_ecc_string_14704 persistent_ram_ecc_string 0 14704 NULL
++u_audio_playback_14709 u_audio_playback 3 14709 NULL
++rtw_cbuf_alloc_14710 rtw_cbuf_alloc 1 14710 NULL
++cgroup_path_14713 cgroup_path 3 14713 NULL
++vfd_write_14717 vfd_write 3 14717 NULL
++__blk_end_request_14729 __blk_end_request 3 14729 NULL
++raid1_resize_14740 raid1_resize 2 14740 NULL
++i915_error_state_buf_init_14742 i915_error_state_buf_init 2 14742 NULL
++btrfs_inode_extref_name_len_14752 btrfs_inode_extref_name_len 0 14752 NULL
++rx_rx_cmplt_read_14753 rx_rx_cmplt_read 3 14753 NULL
++regmap_range_read_file_14775 regmap_range_read_file 3 14775 NULL
++sta_dev_read_14782 sta_dev_read 3 14782 NULL
++keys_proc_write_14792 keys_proc_write 3 14792 NULL
++ext4_kvmalloc_14796 ext4_kvmalloc 1 14796 NULL
++__kfifo_in_14797 __kfifo_in 3-0 14797 NULL nohasharray
++ttm_page_pool_free_14797 ttm_page_pool_free 2-0 14797 &__kfifo_in_14797
++hpet_readl_14801 hpet_readl 0 14801 NULL nohasharray
++snd_als300_gcr_read_14801 snd_als300_gcr_read 0 14801 &hpet_readl_14801
++security_inode_rename_14805 security_inode_rename 0 14805 NULL
++xfs_btree_kill_iroot_14824 xfs_btree_kill_iroot 0 14824 NULL
++do_tune_cpucache_14828 do_tune_cpucache 2 14828 NULL
++mrp_attr_create_14853 mrp_attr_create 3 14853 NULL
++lcd_write_14857 lcd_write 3 14857 NULL
++get_user_cpu_mask_14861 get_user_cpu_mask 2 14861 NULL
++xfs_bmapi_convert_unwritten_14886 xfs_bmapi_convert_unwritten 0 14886 NULL
++gmux_index_read8_14890 gmux_index_read8 0 14890 NULL
++acpi_os_allocate_14892 acpi_os_allocate 1 14892 NULL
++SYSC_readv_14901 SYSC_readv 3 14901 NULL
++__arch_hweight64_14923 __arch_hweight64 0 14923 NULL nohasharray
++qp_memcpy_to_queue_iov_14923 qp_memcpy_to_queue_iov 5-2 14923 &__arch_hweight64_14923
++ocfs2_expand_nonsparse_inode_14936 ocfs2_expand_nonsparse_inode 3-4 14936 NULL
++queue_cnt_14951 queue_cnt 0 14951 NULL
++unix_dgram_recvmsg_14952 unix_dgram_recvmsg 4 14952 NULL
++videobuf_read_stream_14956 videobuf_read_stream 3 14956 NULL
++mce_flush_rx_buffer_14976 mce_flush_rx_buffer 2 14976 NULL
++setkey_14987 setkey 3 14987 NULL nohasharray
++gpio_twl4030_write_14987 gpio_twl4030_write 1 14987 &setkey_14987
++blk_integrity_tuple_size_15027 blk_integrity_tuple_size 0 15027 NULL
++read_file_node_aggr_15040 read_file_node_aggr 3 15040 NULL
++cld_pipe_downcall_15058 cld_pipe_downcall 3 15058 NULL
++ieee80211_if_read_uapsd_max_sp_len_15067 ieee80211_if_read_uapsd_max_sp_len 3 15067 NULL
++nfs4_write_cached_acl_15070 nfs4_write_cached_acl 4 15070 NULL
++ntfs_copy_from_user_15072 ntfs_copy_from_user 3-5-0 15072 NULL
++pppoe_recvmsg_15073 pppoe_recvmsg 4 15073 NULL
++smscore_load_firmware_family2_15086 smscore_load_firmware_family2 3 15086 NULL
++xfs_btree_insrec_15090 xfs_btree_insrec 0 15090 NULL
++btrfs_readpage_15094 btrfs_readpage 0 15094 NULL
++compat_SyS_pwritev_15118 compat_SyS_pwritev 3 15118 NULL
++hex_dump_to_buffer_15121 hex_dump_to_buffer 6 15121 NULL
++start_port_15124 start_port 0 15124 NULL
++ipwireless_ppp_mru_15153 ipwireless_ppp_mru 0 15153 NULL
++SYSC_setdomainname_15180 SYSC_setdomainname 2 15180 NULL
++iscsi_create_endpoint_15193 iscsi_create_endpoint 1 15193 NULL
++mtt_alloc_res_15211 mtt_alloc_res 5 15211 NULL
++bfad_debugfs_write_regrd_15218 bfad_debugfs_write_regrd 3 15218 NULL
++iwl_dbgfs_sram_write_15239 iwl_dbgfs_sram_write 3 15239 NULL
++il_dbgfs_rx_stats_read_15243 il_dbgfs_rx_stats_read 3 15243 NULL
++simple_strtol_15273 simple_strtol 0 15273 NULL
++fw_realloc_buffer_15280 fw_realloc_buffer 2 15280 NULL
++ocfs2_read_refcount_block_15305 ocfs2_read_refcount_block 0 15305 NULL
++kovaplus_sysfs_read_15337 kovaplus_sysfs_read 6 15337 NULL
++ioread16_15342 ioread16 0 15342 NULL
++ept_prefetch_gpte_15348 ept_prefetch_gpte 4 15348 NULL
++acpi_ut_create_string_object_15360 acpi_ut_create_string_object 1 15360 NULL
++ext4_direct_IO_15369 ext4_direct_IO 4 15369 NULL
++graph_depth_read_15371 graph_depth_read 3 15371 NULL
++compat_sys_process_vm_readv_15374 compat_sys_process_vm_readv 3-5 15374 NULL
++fq_codel_zalloc_15378 fq_codel_zalloc 1 15378 NULL
++alloc_fddidev_15382 alloc_fddidev 1 15382 NULL
++pipeline_csum_to_rx_xfer_swi_read_15403 pipeline_csum_to_rx_xfer_swi_read 3 15403 NULL
++get_modalias_15406 get_modalias 2 15406 NULL
++blockdev_direct_IO_15408 blockdev_direct_IO 5 15408 NULL
++__videobuf_copy_to_user_15423 __videobuf_copy_to_user 4-0 15423 NULL
++tcp_mtu_to_mss_15438 tcp_mtu_to_mss 2-0 15438 NULL
++hpsa_change_queue_depth_15449 hpsa_change_queue_depth 2 15449 NULL
++memweight_15450 memweight 2 15450 NULL
++zd_chip_is_zd1211b_15518 zd_chip_is_zd1211b 0 15518 NULL
++ifx_spi_write_15531 ifx_spi_write 3 15531 NULL
++p9_check_zc_errors_15534 p9_check_zc_errors 4 15534 NULL
++xfrm_state_mtu_15548 xfrm_state_mtu 0-2 15548 NULL
++persistent_status_15574 persistent_status 4 15574 NULL
++bnx2fc_process_unsol_compl_15576 bnx2fc_process_unsol_compl 2 15576 NULL
++vme_user_write_15587 vme_user_write 3 15587 NULL
++compat_fillonedir_15620 compat_fillonedir 3 15620 NULL
++proc_loginuid_read_15631 proc_loginuid_read 3 15631 NULL
++tomoyo_scan_bprm_15642 tomoyo_scan_bprm 2-4 15642 NULL nohasharray
++sk_memory_allocated_add_15642 sk_memory_allocated_add 2 15642 &tomoyo_scan_bprm_15642 nohasharray
++pipeline_hs_tx_stat_fifo_int_read_15642 pipeline_hs_tx_stat_fifo_int_read 3 15642 &sk_memory_allocated_add_15642
++joydev_handle_JSIOCSBTNMAP_15643 joydev_handle_JSIOCSBTNMAP 3 15643 NULL
++fs_path_add_15648 fs_path_add 3 15648 NULL
++__do_readpage_15652 __do_readpage 0 15652 NULL
++xsd_read_15653 xsd_read 3 15653 NULL
++unix_bind_15668 unix_bind 3 15668 NULL
++dm_read_15674 dm_read 3 15674 NULL nohasharray
++SyS_connect_15674 SyS_connect 3 15674 &dm_read_15674
++tracing_snapshot_write_15719 tracing_snapshot_write 3 15719 NULL
++HiSax_readstatus_15752 HiSax_readstatus 2 15752 NULL
++smk_read_direct_15803 smk_read_direct 3 15803 NULL
++nameseq_list_15817 nameseq_list 3-0 15817 NULL nohasharray
++gnttab_expand_15817 gnttab_expand 1 15817 &nameseq_list_15817
++afs_proc_rootcell_write_15822 afs_proc_rootcell_write 3 15822 NULL
++table_size_15851 table_size 0-1-2 15851 NULL
++write_file_tx99_15856 write_file_tx99 3 15856 NULL
++media_entity_init_15870 media_entity_init 2-4 15870 NULL
++__mptctl_ioctl_15875 __mptctl_ioctl 2 15875 NULL
++native_read_msr_15905 native_read_msr 0 15905 NULL
++parse_audio_stream_data_15937 parse_audio_stream_data 3 15937 NULL
++power_read_15939 power_read 3 15939 NULL
++lpfc_idiag_drbacc_read_15948 lpfc_idiag_drbacc_read 3 15948 NULL
++snd_pcm_lib_read_transfer_15952 snd_pcm_lib_read_transfer 5-2-4 15952 NULL
++memblock_virt_alloc_try_nid_15954 memblock_virt_alloc_try_nid 1 15954 NULL
++viafb_vt1636_proc_write_16018 viafb_vt1636_proc_write 3 16018 NULL
++dccp_recvmsg_16056 dccp_recvmsg 4 16056 NULL
++read_file_spectral_period_16057 read_file_spectral_period 3 16057 NULL
++si5351_msynth_params_address_16062 si5351_msynth_params_address 0-1 16062 NULL
++isr_tx_exch_complete_read_16103 isr_tx_exch_complete_read 3 16103 NULL
++isr_hw_pm_mode_changes_read_16110 isr_hw_pm_mode_changes_read 3 16110 NULL nohasharray
++dma_tx_requested_read_16110 dma_tx_requested_read 3 16110 &isr_hw_pm_mode_changes_read_16110
++gfs2_jdesc_check_16122 gfs2_jdesc_check 0 16122 NULL
++snd_dma_pointer_16126 snd_dma_pointer 0-2 16126 NULL
++compat_sys_select_16131 compat_sys_select 1 16131 NULL
++fsm_init_16134 fsm_init 2 16134 NULL
++ext4_xattr_block_get_16148 ext4_xattr_block_get 0 16148 NULL
++optimal_reclaimed_pages_16172 optimal_reclaimed_pages 0 16172 NULL
++mapping_level_16188 mapping_level 2-0 16188 NULL
++i40e_allocate_virt_mem_d_16191 i40e_allocate_virt_mem_d 3 16191 NULL
++ath10k_htt_rx_ring_size_16201 ath10k_htt_rx_ring_size 0 16201 NULL
++cipso_v4_map_cat_rng_hton_16203 cipso_v4_map_cat_rng_hton 0 16203 NULL
++SyS_pselect6_16210 SyS_pselect6 1 16210 NULL
++create_table_16213 create_table 2 16213 NULL
++ath9k_hw_ar9287_dump_eeprom_16224 ath9k_hw_ar9287_dump_eeprom 5-4 16224 NULL
++atomic_read_file_16227 atomic_read_file 3 16227 NULL
++BcmGetSectionValStartOffset_16235 BcmGetSectionValStartOffset 0 16235 NULL
++lov_prep_brw_set_16246 lov_prep_brw_set 3 16246 NULL
++btrfs_dev_extent_chunk_offset_16247 btrfs_dev_extent_chunk_offset 0 16247 NULL nohasharray
++i40e_dbg_dump_read_16247 i40e_dbg_dump_read 3 16247 &btrfs_dev_extent_chunk_offset_16247
++il_dbgfs_disable_ht40_write_16249 il_dbgfs_disable_ht40_write 3 16249 NULL
++SyS_fgetxattr_16254 SyS_fgetxattr 4 16254 NULL
++reiserfs_acl_count_16265 reiserfs_acl_count 0-1 16265 NULL
++ocfs2_xattr_bucket_value_truncate_16279 ocfs2_xattr_bucket_value_truncate 4 16279 NULL
++nand_bch_init_16280 nand_bch_init 3-2 16280 NULL nohasharray
++drbd_setsockopt_16280 drbd_setsockopt 5 16280 &nand_bch_init_16280
++account_16283 account 0-4-2 16283 NULL nohasharray
++mirror_status_16283 mirror_status 5 16283 &account_16283
++jumpshot_read_data_16287 jumpshot_read_data 4 16287 NULL
++mo_xattr_get_16288 mo_xattr_get 0 16288 NULL
++stk_allocate_buffers_16291 stk_allocate_buffers 2 16291 NULL
++rbd_segment_offset_16293 rbd_segment_offset 0-2 16293 NULL
++rsc_mgr_init_16299 rsc_mgr_init 3 16299 NULL
++kvm_handle_hva_range_16312 kvm_handle_hva_range 3-2 16312 NULL
++sysfs_create_groups_16360 sysfs_create_groups 0 16360 NULL
++total_ps_buffered_read_16365 total_ps_buffered_read 3 16365 NULL
++xfs_inobt_lookup_16367 xfs_inobt_lookup 0 16367 NULL
++iscsi_tcp_conn_setup_16376 iscsi_tcp_conn_setup 2 16376 NULL
++gfs2_dinode_in_16378 gfs2_dinode_in 0 16378 NULL
++xfs_btree_check_block_16419 xfs_btree_check_block 0 16419 NULL
++ieee80211_if_read_tsf_16420 ieee80211_if_read_tsf 3 16420 NULL
++rxrpc_server_keyring_16431 rxrpc_server_keyring 3 16431 NULL
++__bio_add_page_16435 __bio_add_page 0-4 16435 NULL
++cmdline_store_16442 cmdline_store 4 16442 NULL
++btrfs_truncate_inode_items_16452 btrfs_truncate_inode_items 4 16452 NULL
++netlink_change_ngroups_16457 netlink_change_ngroups 2 16457 NULL
++req_capsule_get_size_16467 req_capsule_get_size 0 16467 NULL
++tracing_readme_read_16493 tracing_readme_read 3 16493 NULL
++KEY_OFFSET_16504 KEY_OFFSET 0 16504 NULL
++snd_interval_max_16529 snd_interval_max 0 16529 NULL
++raid10_resize_16537 raid10_resize 2 16537 NULL
++lpfc_debugfs_read_16566 lpfc_debugfs_read 3 16566 NULL
++agp_allocate_memory_wrap_16576 agp_allocate_memory_wrap 1 16576 NULL
++lustre_msg_hdr_size_v2_16589 lustre_msg_hdr_size_v2 0 16589 NULL
++gmux_index_read32_16604 gmux_index_read32 0 16604 NULL
++rtw_set_wpa_ie_16633 rtw_set_wpa_ie 3 16633 NULL
++btrfs_get_token_32_16651 btrfs_get_token_32 0 16651 NULL
++__wa_populate_dto_urb_16699 __wa_populate_dto_urb 3-4 16699 NULL
++__proc_lnet_buffers_16717 __proc_lnet_buffers 5 16717 NULL
++__copy_to_user_swizzled_16748 __copy_to_user_swizzled 3-4 16748 NULL
++arcmsr_adjust_disk_queue_depth_16756 arcmsr_adjust_disk_queue_depth 2 16756 NULL
++blk_rq_map_user_iov_16772 blk_rq_map_user_iov 5 16772 NULL
++i2o_parm_issue_16790 i2o_parm_issue 0 16790 NULL
++get_server_iovec_16804 get_server_iovec 2 16804 NULL
++drm_malloc_ab_16831 drm_malloc_ab 1-2 16831 NULL
++scsi_mode_sense_16835 scsi_mode_sense 5 16835 NULL
++hfsplus_min_io_size_16859 hfsplus_min_io_size 0 16859 NULL
++xfs_dialloc_ag_16868 xfs_dialloc_ag 0 16868 NULL
++alloc_idx_lebs_16872 alloc_idx_lebs 2 16872 NULL nohasharray
++xfs_iget_16872 xfs_iget 0 16872 &alloc_idx_lebs_16872
++carl9170_debugfs_ampdu_state_read_16873 carl9170_debugfs_ampdu_state_read 3 16873 NULL
++st_write_16874 st_write 3 16874 NULL
++__kfifo_peek_n_16877 __kfifo_peek_n 0 16877 NULL
++transport_init_session_tags_16878 transport_init_session_tags 1-2 16878 NULL
++snd_gf1_mem_proc_dump_16926 snd_gf1_mem_proc_dump 5 16926 NULL nohasharray
++psb_unlocked_ioctl_16926 psb_unlocked_ioctl 2 16926 &snd_gf1_mem_proc_dump_16926
++_sp2d_alloc_16944 _sp2d_alloc 1-2-3 16944 NULL
++squashfs_read_table_16945 squashfs_read_table 3 16945 NULL
++keyctl_instantiate_key_iov_16969 keyctl_instantiate_key_iov 3 16969 NULL
++ocfs2_read_quota_phys_block_16990 ocfs2_read_quota_phys_block 0 16990 NULL
++ceph_read_dir_17005 ceph_read_dir 3 17005 NULL
++copy_counters_to_user_17027 copy_counters_to_user 5 17027 NULL
++jffs2_trusted_setxattr_17048 jffs2_trusted_setxattr 4 17048 NULL
++__arch_hweight32_17060 __arch_hweight32 0 17060 NULL
++sddr55_read_data_17072 sddr55_read_data 4 17072 NULL
++dvb_dvr_read_17073 dvb_dvr_read 3 17073 NULL
++simple_transaction_read_17076 simple_transaction_read 3 17076 NULL
++carl9170_debugfs_mem_usage_read_17084 carl9170_debugfs_mem_usage_read 3 17084 NULL
++entry_length_17093 entry_length 0 17093 NULL
++ocfs2_get_refcount_cpos_end_17113 ocfs2_get_refcount_cpos_end 0 17113 NULL
++write_mem_17114 write_mem 3 17114 NULL
++pvr2_hdw_state_report_17121 pvr2_hdw_state_report 3 17121 NULL
++nouveau_instobj_create__17144 nouveau_instobj_create_ 4 17144 NULL
++jumpshot_write_data_17151 jumpshot_write_data 4 17151 NULL
++sep_read_17161 sep_read 3 17161 NULL
++befs_nls2utf_17163 befs_nls2utf 3 17163 NULL
++tx_tx_start_templates_read_17164 tx_tx_start_templates_read 3 17164 NULL
++UniStrnlen_17169 UniStrnlen 0 17169 NULL
++access_remote_vm_17189 access_remote_vm 0 17189 NULL nohasharray
++iwl_dbgfs_txfifo_flush_write_17189 iwl_dbgfs_txfifo_flush_write 3 17189 &access_remote_vm_17189 nohasharray
++ocfs2_flock_handle_signal_17189 ocfs2_flock_handle_signal 0 17189 &iwl_dbgfs_txfifo_flush_write_17189
++iscsit_find_cmd_from_itt_or_dump_17194 iscsit_find_cmd_from_itt_or_dump 3 17194 NULL nohasharray
++driver_state_read_17194 driver_state_read 3 17194 &iscsit_find_cmd_from_itt_or_dump_17194
++sync_request_17208 sync_request 2 17208 NULL
++dn_recvmsg_17213 dn_recvmsg 4 17213 NULL
++lprocfs_read_frac_helper_17261 lprocfs_read_frac_helper 0 17261 NULL
++error_error_frame_cts_nul_flid_read_17262 error_error_frame_cts_nul_flid_read 3 17262 NULL
++alloc_ep_17269 alloc_ep 1 17269 NULL
++pg_read_17276 pg_read 3 17276 NULL
++raw_recvmsg_17277 raw_recvmsg 4 17277 NULL
++hmac_sha256_17278 hmac_sha256 2 17278 NULL
++neigh_hash_grow_17283 neigh_hash_grow 2 17283 NULL
++minstrel_stats_read_17290 minstrel_stats_read 3 17290 NULL
++ieee80211_if_fmt_dot11MeshForwarding_17301 ieee80211_if_fmt_dot11MeshForwarding 3 17301 NULL
++mb_cache_create_17307 mb_cache_create 2 17307 NULL
++gnttab_map_frames_v2_17314 gnttab_map_frames_v2 2 17314 NULL
++ieee80211_if_read_dot11MeshHWMPperrMinInterval_17346 ieee80211_if_read_dot11MeshHWMPperrMinInterval 3 17346 NULL
++ath6kl_wmi_send_mgmt_cmd_17347 ath6kl_wmi_send_mgmt_cmd 7 17347 NULL
++mdc_import_seq_write_17409 mdc_import_seq_write 3 17409 NULL
++lpfc_debugfs_dif_err_write_17424 lpfc_debugfs_dif_err_write 3 17424 NULL
++compat_sys_ppoll_17430 compat_sys_ppoll 2 17430 NULL
++sta_connected_time_read_17435 sta_connected_time_read 3 17435 NULL
++libcfs_ipif_enumerate_17445 libcfs_ipif_enumerate 0 17445 NULL
++xfs_btree_lshift_17448 xfs_btree_lshift 0 17448 NULL
++nla_get_u32_17455 nla_get_u32 0 17455 NULL
++__ref_totlen_17461 __ref_totlen 0 17461 NULL
++probe_kernel_write_17481 probe_kernel_write 3 17481 NULL
++TSS_rawhmac_17486 TSS_rawhmac 3 17486 NULL
++lbs_highrssi_write_17515 lbs_highrssi_write 3 17515 NULL
++qp_free_res_17541 qp_free_res 5 17541 NULL
++__copy_to_user_17551 __copy_to_user 3-0 17551 NULL
++copy_from_user_17559 copy_from_user 0-3 17559 NULL
++hash_netport4_expire_17573 hash_netport4_expire 4 17573 NULL
++acpi_ut_create_package_object_17594 acpi_ut_create_package_object 1 17594 NULL
++neigh_hash_alloc_17595 neigh_hash_alloc 1 17595 NULL
++osst_execute_17607 osst_execute 7-6 17607 NULL
++ieee80211_if_read_dot11MeshHWMPactivePathToRootTimeout_17618 ieee80211_if_read_dot11MeshHWMPactivePathToRootTimeout 3 17618 NULL
++dma_map_page_17628 dma_map_page 0 17628 NULL
++twl4030_set_gpio_direction_17645 twl4030_set_gpio_direction 1 17645 NULL
++SYSC_migrate_pages_17657 SYSC_migrate_pages 2 17657 NULL
++packet_setsockopt_17662 packet_setsockopt 5 17662 NULL
++pwr_enable_ps_read_17686 pwr_enable_ps_read 3 17686 NULL
++filemap_fdatawait_17688 filemap_fdatawait 0 17688 NULL
++venus_rename_17707 venus_rename 4-5 17707 NULL nohasharray
++__einj_error_trigger_17707 __einj_error_trigger 0 17707 &venus_rename_17707
++exofs_read_lookup_dev_table_17733 exofs_read_lookup_dev_table 3 17733 NULL
++sctpprobe_read_17741 sctpprobe_read 3 17741 NULL
++dgap_do_fep_load_17765 dgap_do_fep_load 3 17765 NULL
++shrink_slab_node_17794 shrink_slab_node 3 17794 NULL
++gnet_stats_copy_app_17821 gnet_stats_copy_app 3 17821 NULL
++cipso_v4_gentag_rbm_17836 cipso_v4_gentag_rbm 0 17836 NULL
++em28xx_audio_ep_packet_size_17844 em28xx_audio_ep_packet_size 0 17844 NULL
++dm_stats_message_17863 dm_stats_message 5 17863 NULL
++sisusb_send_bulk_msg_17864 sisusb_send_bulk_msg 3 17864 NULL
++alloc_sja1000dev_17868 alloc_sja1000dev 1 17868 NULL
++virtio_cread32_17873 virtio_cread32 0 17873 NULL
++ray_cs_essid_proc_write_17875 ray_cs_essid_proc_write 3 17875 NULL
++orinoco_set_key_17878 orinoco_set_key 5-7 17878 NULL nohasharray
++i40e_align_l2obj_base_17878 i40e_align_l2obj_base 0-1 17878 &orinoco_set_key_17878
++init_per_cpu_17880 init_per_cpu 1 17880 NULL
++ieee80211_if_fmt_dot11MeshMaxPeerLinks_17883 ieee80211_if_fmt_dot11MeshMaxPeerLinks 3 17883 NULL
++ieee80211_if_fmt_dot11MeshHWMPRootMode_17890 ieee80211_if_fmt_dot11MeshHWMPRootMode 3 17890 NULL
++xfs_buf_associate_memory_17915 xfs_buf_associate_memory 3 17915 NULL
++xfs_rtallocate_extent_near_17916 xfs_rtallocate_extent_near 0 17916 NULL
++scsi_bufflen_17933 scsi_bufflen 0 17933 NULL
++__mutex_lock_check_stamp_17947 __mutex_lock_check_stamp 0 17947 NULL
++beacon_interval_write_17952 beacon_interval_write 3 17952 NULL
++calc_nr_buckets_17976 calc_nr_buckets 0 17976 NULL
++ext4_ext_calc_credits_for_single_extent_17983 ext4_ext_calc_credits_for_single_extent 0-2 17983 NULL
++smk_write_cipso_17989 smk_write_cipso 3 17989 NULL
++gnttab_max_grant_frames_17993 gnttab_max_grant_frames 0 17993 NULL
++pvr2_v4l2_read_18006 pvr2_v4l2_read 3 18006 NULL
++alloc_rx_desc_ring_18016 alloc_rx_desc_ring 2 18016 NULL
++cpufreq_add_dev_symlink_18028 cpufreq_add_dev_symlink 0 18028 NULL
++o2hb_highest_node_18034 o2hb_highest_node 0 18034 NULL
++cryptd_alloc_instance_18048 cryptd_alloc_instance 2-3 18048 NULL
++__btrfs_drop_extents_18049 __btrfs_drop_extents 5 18049 NULL
++ddebug_proc_write_18055 ddebug_proc_write 3 18055 NULL
++lua_sysfs_read_18062 lua_sysfs_read 6 18062 NULL
++fpregs_get_18066 fpregs_get 4 18066 NULL
++kvm_read_guest_page_18074 kvm_read_guest_page 5 18074 NULL
++SYSC_pselect6_18076 SYSC_pselect6 1 18076 NULL
++SYSC_semtimedop_18091 SYSC_semtimedop 3 18091 NULL
++mpi_alloc_18094 mpi_alloc 1 18094 NULL
++hfs_direct_IO_18104 hfs_direct_IO 4 18104 NULL
++dfs_file_read_18116 dfs_file_read 3 18116 NULL
++svc_getnl_18120 svc_getnl 0 18120 NULL
++paging32_gpte_to_gfn_lvl_18131 paging32_gpte_to_gfn_lvl 0-2-1 18131 NULL
++xfs_zero_eof_18134 xfs_zero_eof 0 18134 NULL
++selinux_inode_setsecurity_18148 selinux_inode_setsecurity 4 18148 NULL
++pccard_store_cis_18176 pccard_store_cis 6 18176 NULL
++orinoco_add_extscan_result_18207 orinoco_add_extscan_result 3 18207 NULL
++gsm_control_message_18209 gsm_control_message 4 18209 NULL
++read_rindex_entry_18213 read_rindex_entry 0 18213 NULL
++do_ipv6_setsockopt_18215 do_ipv6_setsockopt 5 18215 NULL
++gnttab_alloc_grant_references_18240 gnttab_alloc_grant_references 1 18240 NULL
++alloc_trace_uprobe_18247 alloc_trace_uprobe 3 18247 NULL
++rfcomm_sock_setsockopt_18254 rfcomm_sock_setsockopt 5 18254 NULL
++qdisc_class_hash_alloc_18262 qdisc_class_hash_alloc 1 18262 NULL
++gfs2_alloc_sort_buffer_18275 gfs2_alloc_sort_buffer 1 18275 NULL
++alloc_ring_18278 alloc_ring 2-4 18278 NULL
++bio_phys_segments_18281 bio_phys_segments 0 18281 NULL nohasharray
++nouveau_subdev_create__18281 nouveau_subdev_create_ 7 18281 &bio_phys_segments_18281
++ext4_readpages_18283 ext4_readpages 4 18283 NULL
++mmc_send_bus_test_18285 mmc_send_bus_test 4 18285 NULL
++um_idi_write_18293 um_idi_write 3 18293 NULL
++nouveau_disp_create__18305 nouveau_disp_create_ 4-7 18305 NULL
++vga_r_18310 vga_r 0 18310 NULL
++class_add_profile_18315 class_add_profile 1-3-5 18315 NULL
++csio_mem_read_18319 csio_mem_read 3 18319 NULL
++alloc_and_copy_string_18321 alloc_and_copy_string 2 18321 NULL
++ecryptfs_send_message_18322 ecryptfs_send_message 2 18322 NULL
++bio_integrity_advance_18324 bio_integrity_advance 2 18324 NULL
++lcd_proc_write_18351 lcd_proc_write 3 18351 NULL
++pwr_power_save_off_read_18355 pwr_power_save_off_read 3 18355 NULL
++SyS_process_vm_readv_18366 SyS_process_vm_readv 3-5 18366 NULL
++ep_io_18367 ep_io 0 18367 NULL
++qib_user_sdma_num_pages_18371 qib_user_sdma_num_pages 0 18371 NULL
++__ceph_getxattr_18386 __ceph_getxattr 0 18386 NULL
++ci_role_write_18388 ci_role_write 3 18388 NULL
++hdlc_empty_fifo_18397 hdlc_empty_fifo 2 18397 NULL
++adis16136_show_serial_18402 adis16136_show_serial 3 18402 NULL
++crystalhd_user_data_18407 crystalhd_user_data 3 18407 NULL
++memblock_virt_alloc_node_nopanic_18431 memblock_virt_alloc_node_nopanic 1 18431 NULL
++iscsi_create_flashnode_sess_18433 iscsi_create_flashnode_sess 4 18433 NULL
++snd_hda_get_connections_18437 snd_hda_get_connections 0 18437 NULL
++flash_dev_cache_miss_18454 flash_dev_cache_miss 4 18454 NULL
++fuse_perform_write_18457 fuse_perform_write 4 18457 NULL
++regset_tls_set_18459 regset_tls_set 4 18459 NULL
++pci_vpd_lrdt_size_18479 pci_vpd_lrdt_size 0 18479 NULL nohasharray
++mite_bytes_in_transit_18479 mite_bytes_in_transit 0 18479 &pci_vpd_lrdt_size_18479
++udpv6_setsockopt_18487 udpv6_setsockopt 5 18487 NULL
++btrfs_fiemap_18501 btrfs_fiemap 3 18501 NULL
++__copy_user_zeroing_intel_18510 __copy_user_zeroing_intel 0-3 18510 NULL
++__block_write_begin_18511 __block_write_begin 0 18511 NULL
++snd_vx_inb_18514 snd_vx_inb 0 18514 NULL
++snd_gus_dram_poke_18525 snd_gus_dram_poke 4 18525 NULL
++nouveau_fifo_channel_create__18530 nouveau_fifo_channel_create_ 9 18530 NULL
++seq_copy_in_user_18543 seq_copy_in_user 3 18543 NULL
++sas_change_queue_depth_18555 sas_change_queue_depth 2 18555 NULL
++smk_write_rules_list_18565 smk_write_rules_list 3 18565 NULL
++debug_output_18575 debug_output 3 18575 NULL
++xfs_btree_read_bufl_18597 xfs_btree_read_bufl 0 18597 NULL
++filemap_fdatawait_range_18600 filemap_fdatawait_range 0 18600 NULL nohasharray
++slabinfo_write_18600 slabinfo_write 3 18600 &filemap_fdatawait_range_18600
++iowarrior_write_18604 iowarrior_write 3 18604 NULL
++nvc0_ram_create__18624 nvc0_ram_create_ 4 18624 NULL
++from_buffer_18625 from_buffer 3 18625 NULL
++snd_pcm_oss_write3_18657 snd_pcm_oss_write3 0-3 18657 NULL
++ieee80211_if_fmt_rssi_threshold_18664 ieee80211_if_fmt_rssi_threshold 3 18664 NULL
++xfs_iext_insert_18667 xfs_iext_insert 3 18667 NULL
++fnic_stats_debugfs_read_18688 fnic_stats_debugfs_read 3 18688 NULL
++echo_client_prep_commit_18693 echo_client_prep_commit 8 18693 NULL
++iwl_dbgfs_rx_handlers_read_18708 iwl_dbgfs_rx_handlers_read 3 18708 NULL
++ceph_alloc_page_vector_18710 ceph_alloc_page_vector 1 18710 NULL
++blk_rq_bytes_18715 blk_rq_bytes 0 18715 NULL
++snd_als4k_gcr_read_addr_18741 snd_als4k_gcr_read_addr 0 18741 NULL
++o2hb_debug_create_18744 o2hb_debug_create 4 18744 NULL
++__erst_read_to_erange_from_nvram_18748 __erst_read_to_erange_from_nvram 0 18748 NULL
++wep_packets_read_18751 wep_packets_read 3 18751 NULL
++read_file_dump_nfcal_18766 read_file_dump_nfcal 3 18766 NULL
++ffs_epfile_read_18775 ffs_epfile_read 3 18775 NULL
++SyS_lsetxattr_18776 SyS_lsetxattr 4 18776 NULL
++alloc_fcdev_18780 alloc_fcdev 1 18780 NULL
++prealloc_18800 prealloc 0 18800 NULL
++sd_write_data_18803 sd_write_data 9 18803 NULL
++dm_stats_print_18815 dm_stats_print 7 18815 NULL
++sys_modify_ldt_18824 sys_modify_ldt 3 18824 NULL
++mtf_test_write_18844 mtf_test_write 3 18844 NULL
++sctp_setsockopt_events_18862 sctp_setsockopt_events 3 18862 NULL
++ieee80211_if_read_element_ttl_18869 ieee80211_if_read_element_ttl 3 18869 NULL
++xlog_find_verify_log_record_18870 xlog_find_verify_log_record 2 18870 NULL
++ceph_setxattr_18913 ceph_setxattr 4 18913 NULL
++page_cache_tree_insert_18916 page_cache_tree_insert 0 18916 NULL
++ieee80211_rx_mgmt_disassoc_18927 ieee80211_rx_mgmt_disassoc 3 18927 NULL
++snapshot_write_next_18937 snapshot_write_next 0 18937 NULL
++clean_journal_18955 clean_journal 0 18955 NULL
++__nla_reserve_18974 __nla_reserve 3 18974 NULL
++__blockdev_direct_IO_18977 __blockdev_direct_IO 0-6 18977 NULL
++layout_in_gaps_19006 layout_in_gaps 2 19006 NULL
++huge_page_size_19008 huge_page_size 0 19008 NULL
++hash_netport6_expire_19013 hash_netport6_expire 4 19013 NULL
++sysfs_create_dir_ns_19033 sysfs_create_dir_ns 0 19033 NULL
++revalidate_19043 revalidate 2 19043 NULL
++afs_vnode_store_data_19048 afs_vnode_store_data 2-3-4-5 19048 NULL
++osc_pinger_recov_seq_write_19056 osc_pinger_recov_seq_write 3 19056 NULL
++get_log_header_19063 get_log_header 0 19063 NULL
++create_gpadl_header_19064 create_gpadl_header 2 19064 NULL
++ceph_create_snap_context_19082 ceph_create_snap_context 1 19082 NULL
++sta_last_seq_ctrl_read_19106 sta_last_seq_ctrl_read 3 19106 NULL
++cifs_readv_from_socket_19109 cifs_readv_from_socket 3 19109 NULL
++snd_als4k_iobase_readl_19136 snd_als4k_iobase_readl 0 19136 NULL
++alloc_irdadev_19140 alloc_irdadev 1 19140 NULL
++sleep_auth_read_19159 sleep_auth_read 3 19159 NULL
++smk_write_access2_19170 smk_write_access2 3 19170 NULL
++iwl_dbgfs_reply_tx_error_read_19205 iwl_dbgfs_reply_tx_error_read 3 19205 NULL
++vmw_unlocked_ioctl_19212 vmw_unlocked_ioctl 2 19212 NULL
++__copy_to_user_inatomic_19214 __copy_to_user_inatomic 3-0 19214 NULL
++dev_counters_read_19216 dev_counters_read 3 19216 NULL
++wbcir_tx_19219 wbcir_tx 3 19219 NULL
++snd_mask_max_19224 snd_mask_max 0 19224 NULL
++bio_alloc_mddev_19238 bio_alloc_mddev 2 19238 NULL
++ucma_query_19260 ucma_query 4 19260 NULL
++il_dbgfs_rxon_filter_flags_read_19281 il_dbgfs_rxon_filter_flags_read 3 19281 NULL
++batadv_tt_save_orig_buffer_19288 batadv_tt_save_orig_buffer 4 19288 NULL nohasharray
++cfg80211_rx_unprot_mlme_mgmt_19288 cfg80211_rx_unprot_mlme_mgmt 3 19288 &batadv_tt_save_orig_buffer_19288
++qc_capture_19298 qc_capture 3 19298 NULL
++ocfs2_prepare_inode_for_refcount_19303 ocfs2_prepare_inode_for_refcount 4-3 19303 NULL
++event_tx_stuck_read_19305 event_tx_stuck_read 3 19305 NULL
++debug_read_19322 debug_read 3 19322 NULL
++lbs_host_sleep_write_19332 lbs_host_sleep_write 3 19332 NULL nohasharray
++cfg80211_inform_bss_19332 cfg80211_inform_bss 8 19332 &lbs_host_sleep_write_19332
++closure_sub_19359 closure_sub 2 19359 NULL
++firmware_data_write_19360 firmware_data_write 6-5 19360 NULL
++read_zero_19366 read_zero 3 19366 NULL
++interpret_user_input_19393 interpret_user_input 2 19393 NULL
++sync_fill_pt_info_19397 sync_fill_pt_info 0 19397 NULL
++pep_recvmsg_19402 pep_recvmsg 4 19402 NULL
++dvbdmx_write_19423 dvbdmx_write 3 19423 NULL
++SyS_sched_getaffinity_19444 SyS_sched_getaffinity 2 19444 NULL
++xfrm_alg_auth_len_19454 xfrm_alg_auth_len 0 19454 NULL
++gnet_stats_copy_19458 gnet_stats_copy 4 19458 NULL
++gp2ap020a00f_get_thresh_reg_19468 gp2ap020a00f_get_thresh_reg 0 19468 NULL
++sky2_read16_19475 sky2_read16 0 19475 NULL
++__read_status_pciv2_19492 __read_status_pciv2 0 19492 NULL
++kstrtoll_from_user_19500 kstrtoll_from_user 2 19500 NULL
++ext4_add_new_descs_19509 ext4_add_new_descs 3 19509 NULL
++batadv_tvlv_container_register_19520 batadv_tvlv_container_register 5 19520 NULL
++ttm_dma_page_pool_free_19527 ttm_dma_page_pool_free 2-0 19527 NULL
++apei_exec_pre_map_gars_19529 apei_exec_pre_map_gars 0 19529 NULL nohasharray
++cfc_write_array_to_buffer_19529 cfc_write_array_to_buffer 3 19529 &apei_exec_pre_map_gars_19529
++nfc_llcp_build_tlv_19536 nfc_llcp_build_tlv 3 19536 NULL
++gfn_to_index_19558 gfn_to_index 0-1-3-2 19558 NULL
++ocfs2_control_message_19564 ocfs2_control_message 3 19564 NULL
++nfsd_read_19568 nfsd_read 5 19568 NULL
++ieee80211_key_alloc_19575 ieee80211_key_alloc 3 19575 NULL
++mnt_want_write_file_19579 mnt_want_write_file 0 19579 NULL
++bm_status_read_19583 bm_status_read 3 19583 NULL
++load_xattr_datum_19594 load_xattr_datum 0 19594 NULL
++fallocate_chunk_19610 fallocate_chunk 0 19610 NULL
++__mei_cl_recv_19636 __mei_cl_recv 3 19636 NULL
++LoadBitmap_19658 LoadBitmap 2 19658 NULL
++memblock_virt_alloc_low_nopanic_19714 memblock_virt_alloc_low_nopanic 1 19714 NULL
++ocfs2_control_get_this_node_19721 ocfs2_control_get_this_node 0 19721 NULL
++read_reg_19723 read_reg 0 19723 NULL
++wm8350_block_write_19727 wm8350_block_write 2-3 19727 NULL
++memcpy_toiovecend_19736 memcpy_toiovecend 4-3 19736 NULL
++snd_es1968_get_dma_ptr_19747 snd_es1968_get_dma_ptr 0 19747 NULL
++p9_client_read_19750 p9_client_read 5-0 19750 NULL
++pnpbios_proc_write_19758 pnpbios_proc_write 3 19758 NULL
++ocfs2_readpages_19759 ocfs2_readpages 4 19759 NULL
++jffs2_acl_from_medium_19762 jffs2_acl_from_medium 2 19762 NULL
++readhscx_19769 readhscx 0 19769 NULL
++irda_setsockopt_19824 irda_setsockopt 5 19824 NULL
++xfs_bmap_add_extent_hole_real_19828 xfs_bmap_add_extent_hole_real 0 19828 NULL
++vfs_getxattr_19832 vfs_getxattr 0 19832 NULL
++crypt_alloc_buffer_19846 crypt_alloc_buffer 2 19846 NULL
++cfg80211_mlme_register_mgmt_19852 cfg80211_mlme_register_mgmt 5 19852 NULL
++__nla_put_19857 __nla_put 3 19857 NULL
++mrp_request_join_19882 mrp_request_join 4 19882 NULL
++aes_decrypt_interrupt_read_19910 aes_decrypt_interrupt_read 3 19910 NULL
++ps_upsd_max_apturn_read_19918 ps_upsd_max_apturn_read 3 19918 NULL
++mangle_name_19923 mangle_name 0 19923 NULL
++cgroup_task_count_19930 cgroup_task_count 0 19930 NULL
++guest_read_tsc_19931 guest_read_tsc 0 19931 NULL
++iwl_dbgfs_rx_queue_read_19943 iwl_dbgfs_rx_queue_read 3 19943 NULL
++cfg80211_rx_assoc_resp_19944 cfg80211_rx_assoc_resp 4 19944 NULL
++ll_xattr_cache_list_19954 ll_xattr_cache_list 0 19954 NULL
++get_jack_mode_name_19976 get_jack_mode_name 4 19976 NULL
++attach_hdlc_protocol_19986 attach_hdlc_protocol 3 19986 NULL
++rtw_set_wps_probe_resp_19989 rtw_set_wps_probe_resp 3 19989 NULL
++diva_um_idi_read_20003 diva_um_idi_read 0 20003 NULL
++event_trigger_write_20009 event_trigger_write 3 20009 NULL nohasharray
++lov_stripe_md_size_20009 lov_stripe_md_size 0-1 20009 &event_trigger_write_20009
++tree_mod_log_eb_move_20011 tree_mod_log_eb_move 5 20011 NULL
++SYSC_fgetxattr_20027 SYSC_fgetxattr 4 20027 NULL
++split_scan_timeout_read_20029 split_scan_timeout_read 3 20029 NULL
++alloc_ieee80211_20063 alloc_ieee80211 1 20063 NULL
++iwl_mvm_power_mac_dbgfs_read_20067 iwl_mvm_power_mac_dbgfs_read 4 20067 NULL
++target_message_20072 target_message 2 20072 NULL
++rawv6_sendmsg_20080 rawv6_sendmsg 4 20080 NULL
++fuse_conn_limit_read_20084 fuse_conn_limit_read 3 20084 NULL
++aat2870_reg_write_file_20086 aat2870_reg_write_file 3 20086 NULL
++team_options_register_20091 team_options_register 3 20091 NULL
++qla2x00_adjust_sdev_qdepth_up_20097 qla2x00_adjust_sdev_qdepth_up 2 20097 NULL
++xfs_qm_dqget_20103 xfs_qm_dqget 0 20103 NULL
++root_nfs_copy_20111 root_nfs_copy 3 20111 NULL
++hptiop_adjust_disk_queue_depth_20122 hptiop_adjust_disk_queue_depth 2 20122 NULL
++tomoyo_commit_ok_20167 tomoyo_commit_ok 2 20167 NULL
++read_flush_pipefs_20171 read_flush_pipefs 3 20171 NULL
++wep_addr_key_count_read_20174 wep_addr_key_count_read 3 20174 NULL
++crystalhd_map_dio_20181 crystalhd_map_dio 3 20181 NULL
++pvr2_ctrl_value_to_sym_20229 pvr2_ctrl_value_to_sym 5 20229 NULL
++rose_sendmsg_20249 rose_sendmsg 4 20249 NULL
++tm6000_i2c_send_regs_20250 tm6000_i2c_send_regs 5 20250 NULL
++btrfs_header_nritems_20296 btrfs_header_nritems 0 20296 NULL
++r10_sync_page_io_20307 r10_sync_page_io 3 20307 NULL
++dm_get_reserved_bio_based_ios_20315 dm_get_reserved_bio_based_ios 0 20315 NULL
++tx_tx_burst_programmed_read_20320 tx_tx_burst_programmed_read 3 20320 NULL
++vx_send_msg_nolock_20322 vx_send_msg_nolock 0 20322 NULL
++snd_cs4281_BA1_read_20323 snd_cs4281_BA1_read 5 20323 NULL
++gfs2_glock_nq_m_20347 gfs2_glock_nq_m 1 20347 NULL
++handle_arr_calc_size_20355 handle_arr_calc_size 0-1 20355 NULL
++smk_set_cipso_20379 smk_set_cipso 3 20379 NULL
++snd_nm256_readl_20394 snd_nm256_readl 0 20394 NULL nohasharray
++read_7220_creg32_20394 read_7220_creg32 0 20394 &snd_nm256_readl_20394
++__kfifo_from_user_20399 __kfifo_from_user 3 20399 NULL nohasharray
++SyS_get_mempolicy_20399 SyS_get_mempolicy 3 20399 &__kfifo_from_user_20399
++compat_ipv6_setsockopt_20468 compat_ipv6_setsockopt 5 20468 NULL
++read_buf_20469 read_buf 2 20469 NULL
++bio_trim_20472 bio_trim 2 20472 NULL
++btrfs_get_32_20476 btrfs_get_32 0 20476 NULL
++xfs_iext_realloc_direct_20521 xfs_iext_realloc_direct 2 20521 NULL
++drbd_bm_resize_20522 drbd_bm_resize 2 20522 NULL
++amd_create_gatt_pages_20537 amd_create_gatt_pages 1 20537 NULL
++scsi_report_opcode_20551 scsi_report_opcode 3 20551 NULL
++venus_create_20555 venus_create 4 20555 NULL
++btrfs_super_log_root_20565 btrfs_super_log_root 0 20565 NULL
++crypto_ahash_reqsize_20569 crypto_ahash_reqsize 0 20569 NULL
++xfs_bmap_isaeof_20570 xfs_bmap_isaeof 0 20570 NULL
++ocfs2_cluster_lock_20588 ocfs2_cluster_lock 0 20588 NULL
++kvm_test_age_hva_20593 kvm_test_age_hva 2 20593 NULL
++sync_timeline_create_20601 sync_timeline_create 2 20601 NULL
++lirc_write_20604 lirc_write 3 20604 NULL
++qib_qsfp_write_20614 qib_qsfp_write 0-2-4 20614 NULL
++snd_pcm_oss_prepare_20641 snd_pcm_oss_prepare 0 20641 NULL
++get_extent_skip_holes_20642 get_extent_skip_holes 2 20642 NULL
++kfifo_copy_to_user_20646 kfifo_copy_to_user 3-4 20646 NULL
++cpulist_scnprintf_20648 cpulist_scnprintf 2-0 20648 NULL
++oz_add_farewell_20652 oz_add_farewell 5 20652 NULL
++oz_cdev_read_20659 oz_cdev_read 3 20659 NULL
++snd_hdsp_playback_copy_20676 snd_hdsp_playback_copy 5 20676 NULL nohasharray
++btrfs_qgroup_reserve_20676 btrfs_qgroup_reserve 0 20676 &snd_hdsp_playback_copy_20676
++dvb_dmxdev_buffer_read_20682 dvb_dmxdev_buffer_read 0-4 20682 NULL
++cpumask_size_20683 cpumask_size 0 20683 NULL
++btrfs_node_blockptr_20685 btrfs_node_blockptr 0 20685 NULL
++read_file_tgt_int_stats_20697 read_file_tgt_int_stats 3 20697 NULL
++__maestro_read_20700 __maestro_read 0 20700 NULL
++cipso_v4_gentag_rng_20703 cipso_v4_gentag_rng 0 20703 NULL
++pcpu_page_first_chunk_20712 pcpu_page_first_chunk 1 20712 NULL
++ocfs2_read_xattr_bucket_20722 ocfs2_read_xattr_bucket 0 20722 NULL
++security_context_to_sid_force_20724 security_context_to_sid_force 2 20724 NULL
++fb_prepare_logo_20743 fb_prepare_logo 0 20743 NULL
++vol_cdev_direct_write_20751 vol_cdev_direct_write 3 20751 NULL
++ocfs2_align_bytes_to_clusters_20754 ocfs2_align_bytes_to_clusters 2 20754 NULL
++brcmf_p2p_escan_20763 brcmf_p2p_escan 2 20763 NULL nohasharray
++mnt_clone_write_20763 mnt_clone_write 0 20763 &brcmf_p2p_escan_20763
++fb_alloc_cmap_gfp_20792 fb_alloc_cmap_gfp 2 20792 NULL
++iwl_dbgfs_rxon_flags_read_20795 iwl_dbgfs_rxon_flags_read 3 20795 NULL
++lowpan_write_20800 lowpan_write 3 20800 NULL
++strndup_user_20819 strndup_user 2 20819 NULL nohasharray
++do_glock_20819 do_glock 0 20819 &strndup_user_20819
++tipc_msg_build_20825 tipc_msg_build 3 20825 NULL
++wl1271_format_buffer_20834 wl1271_format_buffer 2 20834 NULL
++uvc_alloc_entity_20836 uvc_alloc_entity 4-3 20836 NULL
++p9_tag_alloc_20845 p9_tag_alloc 3 20845 NULL
++nvme_trans_supported_vpd_pages_20847 nvme_trans_supported_vpd_pages 4 20847 NULL
++get_name_20855 get_name 4 20855 NULL
++iwl_dbgfs_pm_params_read_20866 iwl_dbgfs_pm_params_read 3 20866 NULL
++snd_pcm_capture_avail_20867 snd_pcm_capture_avail 0 20867 NULL
++srq_free_res_20868 srq_free_res 5 20868 NULL
++cfs_cpt_table_create_20884 cfs_cpt_table_create 1 20884 NULL
++rb_simple_write_20890 rb_simple_write 3 20890 NULL
++sisusb_send_packet_20891 sisusb_send_packet 2 20891 NULL
++key_icverrors_read_20895 key_icverrors_read 3 20895 NULL
++vfio_msi_enable_20906 vfio_msi_enable 2 20906 NULL
++lbs_rdbbp_write_20918 lbs_rdbbp_write 3 20918 NULL
++htable_bits_20933 htable_bits 0 20933 NULL
++altera_set_ir_post_20948 altera_set_ir_post 2 20948 NULL
++rx_rx_phy_hdr_read_20950 rx_rx_phy_hdr_read 3 20950 NULL
++rsxx_cram_read_20957 rsxx_cram_read 3 20957 NULL
++nfs_map_name_to_uid_20962 nfs_map_name_to_uid 3 20962 NULL
++snd_rme9652_playback_copy_20970 snd_rme9652_playback_copy 5 20970 NULL
++alg_setsockopt_20985 alg_setsockopt 5 20985 NULL
++qib_verbs_send_20999 qib_verbs_send 5-3 20999 NULL
++btrfs_dirty_pages_21019 btrfs_dirty_pages 0 21019 NULL
++btrfs_inode_ref_name_len_21024 btrfs_inode_ref_name_len 0 21024 NULL
++xfs_btree_new_root_21028 xfs_btree_new_root 0 21028 NULL
++rx_defrag_tkip_called_read_21031 rx_defrag_tkip_called_read 3 21031 NULL
++srp_change_queue_depth_21038 srp_change_queue_depth 2 21038 NULL
++lbs_threshold_read_21046 lbs_threshold_read 5 21046 NULL
++reiserfs_direct_IO_21051 reiserfs_direct_IO 4 21051 NULL
++proc_fault_inject_write_21058 proc_fault_inject_write 3 21058 NULL
++qdisc_get_default_21072 qdisc_get_default 2 21072 NULL
++event_calibration_read_21083 event_calibration_read 3 21083 NULL
++bl_add_page_to_bio_21094 bl_add_page_to_bio 2 21094 NULL nohasharray
++multipath_status_21094 multipath_status 5 21094 &bl_add_page_to_bio_21094
++rate_control_pid_events_read_21099 rate_control_pid_events_read 3 21099 NULL
++ath6kl_send_go_probe_resp_21113 ath6kl_send_go_probe_resp 3 21113 NULL
++_efx_mcdi_rpc_async_21119 _efx_mcdi_rpc_async 4-5 21119 NULL
++i2400m_rx_trace_21127 i2400m_rx_trace 3 21127 NULL
++cx18_v4l2_read_21196 cx18_v4l2_read 3 21196 NULL
++ipc_rcu_alloc_21208 ipc_rcu_alloc 1 21208 NULL
++scsi_execute_req_flags_21215 scsi_execute_req_flags 5 21215 NULL
++get_numpages_21227 get_numpages 0-1-2 21227 NULL
++input_ff_create_21240 input_ff_create 2 21240 NULL
++cfg80211_notify_new_peer_candidate_21242 cfg80211_notify_new_peer_candidate 4 21242 NULL
++use_debug_keys_read_21251 use_debug_keys_read 3 21251 NULL
++fru_length_21257 fru_length 0 21257 NULL
++rtw_set_wps_beacon_21262 rtw_set_wps_beacon 3 21262 NULL
++ocfs2_blocks_for_bytes_21268 ocfs2_blocks_for_bytes 0-2 21268 NULL
++xfs_alloc_ag_vextent_size_21276 xfs_alloc_ag_vextent_size 0 21276 NULL
++do_msg_fill_21307 do_msg_fill 3 21307 NULL
++add_res_range_21310 add_res_range 4 21310 NULL
++get_zeroed_page_21322 get_zeroed_page 0 21322 NULL
++ftrace_profile_read_21327 ftrace_profile_read 3 21327 NULL
++read_file_bool_bmps_21344 read_file_bool_bmps 3 21344 NULL
++gfs2_ea_get_copy_21353 gfs2_ea_get_copy 0 21353 NULL
++alloc_orinocodev_21371 alloc_orinocodev 1 21371 NULL
++SYSC_rt_sigpending_21379 SYSC_rt_sigpending 2 21379 NULL
++video_ioctl2_21380 video_ioctl2 2 21380 NULL
++insert_ptr_21386 insert_ptr 6 21386 NULL
++diva_get_driver_dbg_mask_21399 diva_get_driver_dbg_mask 0 21399 NULL
++__clone_and_map_simple_bio_21404 __clone_and_map_simple_bio 4 21404 NULL
++snd_m3_inw_21406 snd_m3_inw 0 21406 NULL
++usnic_ib_dump_vf_hdr_21423 usnic_ib_dump_vf_hdr 3 21423 NULL
++snapshot_read_next_21426 snapshot_read_next 0 21426 NULL
++tcp_bound_to_half_wnd_21429 tcp_bound_to_half_wnd 0-2 21429 NULL
++tracing_saved_cmdlines_read_21434 tracing_saved_cmdlines_read 3 21434 NULL
++aggr_size_tx_agg_vs_rate_read_21438 aggr_size_tx_agg_vs_rate_read 3 21438 NULL
++__ertm_hdr_size_21450 __ertm_hdr_size 0 21450 NULL
++ReadISAR_21453 ReadISAR 0 21453 NULL
++mei_nfc_send_21477 mei_nfc_send 3 21477 NULL
++read_file_xmit_21487 read_file_xmit 3 21487 NULL
++mmc_alloc_sg_21504 mmc_alloc_sg 1 21504 NULL
++btrfs_file_aio_write_21520 btrfs_file_aio_write 4 21520 NULL
++il_dbgfs_stations_read_21532 il_dbgfs_stations_read 3 21532 NULL
++cipso_v4_map_cat_enum_hton_21540 cipso_v4_map_cat_enum_hton 0 21540 NULL
++rxrpc_send_data_21553 rxrpc_send_data 5 21553 NULL
++rx_rx_beacon_early_term_read_21559 rx_rx_beacon_early_term_read 3 21559 NULL
++xfs_buf_read_uncached_21585 xfs_buf_read_uncached 3 21585 NULL
++snd_es18xx_mixer_read_21586 snd_es18xx_mixer_read 0 21586 NULL
++ocfs2_acl_from_xattr_21604 ocfs2_acl_from_xattr 2 21604 NULL
++filemap_get_page_21606 filemap_get_page 2 21606 NULL
++gfs2_glock_nq_init_21624 gfs2_glock_nq_init 0 21624 NULL
++ocfs2_refcount_cow_hunk_21630 ocfs2_refcount_cow_hunk 3-4 21630 NULL
++__jfs_getxattr_21631 __jfs_getxattr 0 21631 NULL
++atalk_sendmsg_21677 atalk_sendmsg 4 21677 NULL
++ocfs2_xattr_get_nolock_21678 ocfs2_xattr_get_nolock 0 21678 NULL
++rtllib_alloc_txb_21687 rtllib_alloc_txb 1 21687 NULL
++evdev_ioctl_handler_21705 evdev_ioctl_handler 2 21705 NULL
++xfs_btree_insert_21712 xfs_btree_insert 0 21712 NULL
++update_time_21719 update_time 0 21719 NULL
++unix_skb_len_21722 unix_skb_len 0 21722 NULL
++lprocfs_wr_import_21728 lprocfs_wr_import 3 21728 NULL
++mthca_alloc_init_21754 mthca_alloc_init 2 21754 NULL
++usbat_flash_read_data_21762 usbat_flash_read_data 4 21762 NULL
++gen_pool_add_21776 gen_pool_add 3 21776 NULL
++xfs_da_grow_inode_int_21785 xfs_da_grow_inode_int 3 21785 NULL
++dvb_generic_ioctl_21810 dvb_generic_ioctl 2 21810 NULL
++__ocfs2_cluster_lock_21812 __ocfs2_cluster_lock 0 21812 NULL
++_iwl_dbgfs_sta_drain_write_21837 _iwl_dbgfs_sta_drain_write 3 21837 NULL
++oom_adj_read_21847 oom_adj_read 3 21847 NULL
++lpfc_idiag_extacc_avail_get_21865 lpfc_idiag_extacc_avail_get 0-3 21865 NULL
++brcms_debugfs_hardware_read_21867 brcms_debugfs_hardware_read 3 21867 NULL
++sisusbcon_bmove_21873 sisusbcon_bmove 6-5-7 21873 NULL
++ldlm_lock_create_21888 ldlm_lock_create 7 21888 NULL
++dbAllocCtl_21911 dbAllocCtl 0 21911 NULL
++qsfp_1_read_21915 qsfp_1_read 3 21915 NULL
++__build_xattrs_21979 __build_xattrs 0 21979 NULL
++SYSC_prctl_21980 SYSC_prctl 4 21980 NULL
++compat_rw_copy_check_uvector_22001 compat_rw_copy_check_uvector 0-3 22001 NULL nohasharray
++rxpipe_descr_host_int_trig_rx_data_read_22001 rxpipe_descr_host_int_trig_rx_data_read 3 22001 &compat_rw_copy_check_uvector_22001
++regcache_sync_block_raw_flush_22021 regcache_sync_block_raw_flush 3-4 22021 NULL
++btrfs_get_16_22023 btrfs_get_16 0 22023 NULL
++_sp2d_min_pg_22032 _sp2d_min_pg 0 22032 NULL
++lookup_metapath_22039 lookup_metapath 0 22039 NULL
++zd_usb_read_fw_22049 zd_usb_read_fw 4 22049 NULL
++ieee80211_if_fmt_dropped_frames_ttl_22054 ieee80211_if_fmt_dropped_frames_ttl 3 22054 NULL
++btrfs_reloc_clone_csums_22077 btrfs_reloc_clone_csums 2-3 22077 NULL
++mem_rw_22085 mem_rw 3 22085 NULL
++xfs_bmapi_reserve_delalloc_22086 xfs_bmapi_reserve_delalloc 0 22086 NULL
++kstrtos32_from_user_22087 kstrtos32_from_user 2 22087 NULL
++rt2x00debug_read_crypto_stats_22109 rt2x00debug_read_crypto_stats 3 22109 NULL
++shmem_add_to_page_cache_22121 shmem_add_to_page_cache 0 22121 NULL
++snd_hda_codec_read_22130 snd_hda_codec_read 0 22130 NULL
++SyS_sched_setaffinity_22148 SyS_sched_setaffinity 2 22148 NULL
++do_tcp_sendpages_22155 do_tcp_sendpages 4 22155 NULL
++__kfifo_alloc_22173 __kfifo_alloc 3 22173 NULL
++rfcomm_sock_recvmsg_22227 rfcomm_sock_recvmsg 4 22227 NULL
++mem_write_22232 mem_write 3 22232 NULL
++p9_virtio_zc_request_22240 p9_virtio_zc_request 6-5 22240 NULL
++prepare_to_wait_event_22247 prepare_to_wait_event 0 22247 NULL
++compat_process_vm_rw_22254 compat_process_vm_rw 3-5 22254 NULL
++ping_common_sendmsg_22261 ping_common_sendmsg 5 22261 NULL
++add_res_tree_22263 add_res_tree 7 22263 NULL
++__btrfs_direct_write_22273 __btrfs_direct_write 4-0 22273 NULL
++queue_max_sectors_22280 queue_max_sectors 0 22280 NULL
++__tun_chr_ioctl_22300 __tun_chr_ioctl 4 22300 NULL nohasharray
++pci_vpd_srdt_size_22300 pci_vpd_srdt_size 0 22300 &__tun_chr_ioctl_22300
++mesh_table_alloc_22305 mesh_table_alloc 1 22305 NULL
++lov_setstripe_22307 lov_setstripe 2 22307 NULL
++udpv6_sendmsg_22316 udpv6_sendmsg 4 22316 NULL
++C_SYSC_msgrcv_22320 C_SYSC_msgrcv 3 22320 NULL
++atomic_read_22342 atomic_read 0 22342 NULL
++ll_lazystatfs_seq_write_22353 ll_lazystatfs_seq_write 3 22353 NULL
++snd_pcm_alsa_frames_22363 snd_pcm_alsa_frames 2 22363 NULL
++evdev_ioctl_22371 evdev_ioctl 2 22371 NULL
++alloc_large_system_hash_22391 alloc_large_system_hash 2 22391 NULL
++zoran_write_22404 zoran_write 3 22404 NULL
++queue_reply_22416 queue_reply 3 22416 NULL
++__set_enter_print_fmt_22431 __set_enter_print_fmt 0 22431 NULL
++queue_max_segments_22441 queue_max_segments 0 22441 NULL
++handle_received_packet_22457 handle_received_packet 3 22457 NULL
++ecryptfs_write_22488 ecryptfs_write 4-3 22488 NULL
++qib_user_sdma_alloc_header_22490 qib_user_sdma_alloc_header 2 22490 NULL
++cache_write_procfs_22491 cache_write_procfs 3 22491 NULL
++mutex_lock_interruptible_22505 mutex_lock_interruptible 0 22505 NULL
++trim_no_bitmap_22524 trim_no_bitmap 4-3 22524 NULL
++ocfs2_read_extent_block_22550 ocfs2_read_extent_block 0 22550 NULL
++agp_alloc_page_array_22554 agp_alloc_page_array 1 22554 NULL
++dbFindCtl_22587 dbFindCtl 0 22587 NULL
++snapshot_read_22601 snapshot_read 3 22601 NULL
++sctp_setsockopt_connectx_old_22631 sctp_setsockopt_connectx_old 3 22631 NULL
++ide_core_cp_entry_22636 ide_core_cp_entry 3 22636 NULL
++wl1271_rx_filter_get_fields_size_22638 wl1271_rx_filter_get_fields_size 0 22638 NULL
++pwr_wake_on_timer_exp_read_22640 pwr_wake_on_timer_exp_read 3 22640 NULL
++iwl_dbgfs_calib_disabled_read_22649 iwl_dbgfs_calib_disabled_read 3 22649 NULL
++compat_SyS_msgrcv_22661 compat_SyS_msgrcv 3 22661 NULL
++ext4_ext_direct_IO_22679 ext4_ext_direct_IO 4 22679 NULL
++l2tp_ip_recvmsg_22681 l2tp_ip_recvmsg 4 22681 NULL
++bch_dump_read_22685 bch_dump_read 3 22685 NULL
++reg_umr_22686 reg_umr 5 22686 NULL
++nr_cpusets_22705 nr_cpusets 0 22705 NULL
++alloc_libipw_22708 alloc_libipw 1 22708 NULL
++cx18_copy_buf_to_user_22735 cx18_copy_buf_to_user 4-0 22735 NULL
++ceph_decode_32_22738 ceph_decode_32 0 22738 NULL nohasharray
++__mei_cl_send_22738 __mei_cl_send 3 22738 &ceph_decode_32_22738
++__writeback_single_inode_22739 __writeback_single_inode 0 22739 NULL
++iio_debugfs_write_reg_22742 iio_debugfs_write_reg 3 22742 NULL
++qlcnic_sriov_init_22762 qlcnic_sriov_init 2 22762 NULL
++print_frame_22769 print_frame 0 22769 NULL
++ftrace_arch_read_dyn_info_22773 ftrace_arch_read_dyn_info 0 22773 NULL
++__break_lease_22777 __break_lease 0 22777 NULL
++vnic_dev_get_res_count_22791 vnic_dev_get_res_count 0 22791 NULL
++pla_ocp_write_22802 pla_ocp_write 4 22802 NULL
++__generic_copy_to_user_intel_22806 __generic_copy_to_user_intel 0-3 22806 NULL
++read_file_rcstat_22854 read_file_rcstat 3 22854 NULL
++create_attr_set_22861 create_attr_set 1 22861 NULL
++hash_ip6_expire_22867 hash_ip6_expire 4 22867 NULL
++vmw_execbuf_process_22885 vmw_execbuf_process 5 22885 NULL
++usblp_new_writeurb_22894 usblp_new_writeurb 2 22894 NULL
++mdc800_device_read_22896 mdc800_device_read 3 22896 NULL
++ion_handle_test_kernel_22900 ion_handle_test_kernel 4-3 22900 NULL nohasharray
++policy_emit_config_values_22900 policy_emit_config_values 3 22900 &ion_handle_test_kernel_22900
++__set_xattr_22923 __set_xattr 0 22923 NULL
++xstateregs_set_22932 xstateregs_set 4 22932 NULL
++pcpu_mem_zalloc_22948 pcpu_mem_zalloc 1 22948 NULL
++alloc_sglist_22960 alloc_sglist 2-3 22960 NULL
++caif_seqpkt_sendmsg_22961 caif_seqpkt_sendmsg 4 22961 NULL
++vme_get_size_22964 vme_get_size 0 22964 NULL
++tx_frag_key_not_found_read_22971 tx_frag_key_not_found_read 3 22971 NULL
++cached_dev_cache_miss_22979 cached_dev_cache_miss 4 22979 NULL
++usb_get_langid_22983 usb_get_langid 0 22983 NULL
++remote_settings_file_write_22987 remote_settings_file_write 3 22987 NULL
++viafb_dvp0_proc_write_23023 viafb_dvp0_proc_write 3 23023 NULL
++cifs_local_to_utf16_bytes_23025 cifs_local_to_utf16_bytes 0 23025 NULL
++ocfs2_refcount_cow_xattr_23029 ocfs2_refcount_cow_xattr 0-6-7 23029 NULL
++st_status_23032 st_status 5 23032 NULL
++nv50_disp_chan_create__23056 nv50_disp_chan_create_ 5 23056 NULL
++comedi_buf_write_n_available_23057 comedi_buf_write_n_available 0 23057 NULL
++security_inode_killpriv_23060 security_inode_killpriv 0 23060 NULL
++reiserfs_add_entry_23062 reiserfs_add_entry 4 23062 NULL nohasharray
++unix_seqpacket_recvmsg_23062 unix_seqpacket_recvmsg 4 23062 &reiserfs_add_entry_23062
++mei_cl_send_23068 mei_cl_send 3 23068 NULL
++kvm_mmu_gva_to_gpa_write_23075 kvm_mmu_gva_to_gpa_write 0 23075 NULL
++raw_sendmsg_23078 raw_sendmsg 4 23078 NULL
++get_user_hdr_len_23079 get_user_hdr_len 0 23079 NULL
++isr_tx_procs_read_23084 isr_tx_procs_read 3 23084 NULL
++rt2x00debug_write_eeprom_23091 rt2x00debug_write_eeprom 3 23091 NULL
++ntfs_ucstonls_23097 ntfs_ucstonls 3-5 23097 NULL
++xfs_dir_ialloc_23100 xfs_dir_ialloc 0 23100 NULL
++pipe_iov_copy_from_user_23102 pipe_iov_copy_from_user 3 23102 NULL
++dgram_recvmsg_23104 dgram_recvmsg 4 23104 NULL
++mwl8k_cmd_set_beacon_23110 mwl8k_cmd_set_beacon 4 23110 NULL
++nl80211_send_rx_auth_23111 nl80211_send_rx_auth 4 23111 NULL nohasharray
++bset_tree_bytes_23111 bset_tree_bytes 0 23111 &nl80211_send_rx_auth_23111
++__clear_user_23118 __clear_user 0-2 23118 NULL
++drm_mode_create_tv_properties_23122 drm_mode_create_tv_properties 2 23122 NULL
++ata_scsi_change_queue_depth_23126 ata_scsi_change_queue_depth 2 23126 NULL
++read_file_ani_23161 read_file_ani 3 23161 NULL
++usblp_write_23178 usblp_write 3 23178 NULL
++gss_pipe_downcall_23182 gss_pipe_downcall 3 23182 NULL
++mpi_alloc_limb_space_23190 mpi_alloc_limb_space 1 23190 NULL
++tty_buffer_request_room_23228 tty_buffer_request_room 2-0 23228 NULL
++xlog_get_bp_23229 xlog_get_bp 2 23229 NULL nohasharray
++__read_status_pci_23229 __read_status_pci 0 23229 &xlog_get_bp_23229
++ft1000_read_dpram_mag_32_23232 ft1000_read_dpram_mag_32 0 23232 NULL
++rxrpc_client_sendmsg_23236 rxrpc_client_sendmsg 5 23236 NULL
++__gfn_to_rmap_23240 __gfn_to_rmap 2-1 23240 NULL
++nv50_ram_create__23241 nv50_ram_create_ 4 23241 NULL
++sctp_recvmsg_23265 sctp_recvmsg 4 23265 NULL
++uwb_dev_addr_print_23282 uwb_dev_addr_print 2 23282 NULL
++diva_get_trace_filter_23286 diva_get_trace_filter 0 23286 NULL
++i2cdev_write_23310 i2cdev_write 3 23310 NULL
++__aa_kvmalloc_23320 __aa_kvmalloc 1 23320 NULL
++page_readlink_23346 page_readlink 3 23346 NULL
++kmem_zalloc_large_23351 kmem_zalloc_large 1 23351 NULL
++get_dst_timing_23358 get_dst_timing 0 23358 NULL nohasharray
++write_inode_23358 write_inode 0 23358 &get_dst_timing_23358
++fd_setup_write_same_buf_23369 fd_setup_write_same_buf 3 23369 NULL
++iscsi_change_queue_depth_23416 iscsi_change_queue_depth 2 23416 NULL
++vga_mm_r_23419 vga_mm_r 0 23419 NULL
++ocfs2_zero_tail_23447 ocfs2_zero_tail 3 23447 NULL
++hidraw_send_report_23449 hidraw_send_report 3 23449 NULL
++__ata_change_queue_depth_23484 __ata_change_queue_depth 3 23484 NULL
++linear_conf_23485 linear_conf 2 23485 NULL nohasharray
++sync_mapping_buffers_23485 sync_mapping_buffers 0 23485 &linear_conf_23485
++event_filter_read_23494 event_filter_read 3 23494 NULL
++lustre_acl_xattr_merge2ext_23502 lustre_acl_xattr_merge2ext 2 23502 NULL
++devm_iio_device_alloc_23511 devm_iio_device_alloc 2 23511 NULL
++__proc_cpt_table_23516 __proc_cpt_table 5 23516 NULL
++ima_show_measurements_count_23536 ima_show_measurements_count 3 23536 NULL
++tcp_current_mss_23552 tcp_current_mss 0 23552 NULL
++btrfs_super_bytenr_23561 btrfs_super_bytenr 0 23561 NULL
++venus_symlink_23570 venus_symlink 6-4 23570 NULL
++iwl_dbgfs_interrupt_read_23574 iwl_dbgfs_interrupt_read 3 23574 NULL
++xfpregs_get_23586 xfpregs_get 4 23586 NULL
++snd_interval_min_23590 snd_interval_min 0 23590 NULL
++islpci_mgt_transaction_23610 islpci_mgt_transaction 5 23610 NULL
++xfs_qm_dqread_23613 xfs_qm_dqread 0 23613 NULL
++ocfs2_journal_access_23616 ocfs2_journal_access 0 23616 NULL
++__i2400mu_send_barker_23652 __i2400mu_send_barker 3 23652 NULL
++sInW_23663 sInW 0 23663 NULL
++SyS_connect_23669 SyS_connect 3 23669 NULL
++cx18_read_23699 cx18_read 3 23699 NULL
++at_get_23708 at_get 0 23708 NULL
++rx_rx_dropped_frame_read_23748 rx_rx_dropped_frame_read 3 23748 NULL
++__kfifo_max_r_23768 __kfifo_max_r 0-2-1 23768 NULL
++__build_packet_message_23778 __build_packet_message 4-10 23778 NULL
++security_inode_getxattr_23781 security_inode_getxattr 0 23781 NULL
++cfg80211_inform_bss_width_frame_23782 cfg80211_inform_bss_width_frame 5 23782 NULL
++mpt_free_res_23793 mpt_free_res 5 23793 NULL
++map_write_23795 map_write 3 23795 NULL
++rx_path_reset_read_23801 rx_path_reset_read 3 23801 NULL
++ocfs2_replace_cow_23803 ocfs2_replace_cow 0 23803 NULL
++__earlyonly_bootmem_alloc_23824 __earlyonly_bootmem_alloc 2 23824 NULL
++lustre_msg_buflen_23827 lustre_msg_buflen 0 23827 NULL
++ceph_copy_page_vector_to_user_23829 ceph_copy_page_vector_to_user 0-4-3 23829 NULL
++pgdat_end_pfn_23842 pgdat_end_pfn 0 23842 NULL
++iwl_dbgfs_nvm_read_23845 iwl_dbgfs_nvm_read 3 23845 NULL
++p54_init_common_23850 p54_init_common 1 23850 NULL
++bin_to_hex_dup_23853 bin_to_hex_dup 2 23853 NULL
++ocfs2_xattr_get_clusters_23857 ocfs2_xattr_get_clusters 0 23857 NULL
++ieee80211_if_read_dot11MeshMaxPeerLinks_23878 ieee80211_if_read_dot11MeshMaxPeerLinks 3 23878 NULL
++writeback_single_inode_23881 writeback_single_inode 0 23881 NULL nohasharray
++nouveau_clock_create__23881 nouveau_clock_create_ 5 23881 &writeback_single_inode_23881
++tipc_snprintf_23893 tipc_snprintf 2-0 23893 NULL
++add_new_gdb_meta_bg_23911 add_new_gdb_meta_bg 3 23911 NULL nohasharray
++ieee80211_if_read_hw_queues_23911 ieee80211_if_read_hw_queues 3 23911 &add_new_gdb_meta_bg_23911
++f2fs_getxattr_23917 f2fs_getxattr 0 23917 NULL
++mpihelp_mul_karatsuba_case_23918 mpihelp_mul_karatsuba_case 5-3 23918 NULL nohasharray
++ipath_reg_phys_mr_23918 ipath_reg_phys_mr 3 23918 &mpihelp_mul_karatsuba_case_23918
++kvm_read_guest_23928 kvm_read_guest 4-2 23928 NULL
++uvc_endpoint_max_bpi_23944 uvc_endpoint_max_bpi 0 23944 NULL
++cifs_setxattr_23957 cifs_setxattr 4 23957 NULL
++size_roundup_power2_23958 size_roundup_power2 0-1 23958 NULL
++sddr55_write_data_23983 sddr55_write_data 4 23983 NULL
++zd_usb_iowrite16v_async_23984 zd_usb_iowrite16v_async 3 23984 NULL
++cxgb_alloc_mem_24007 cxgb_alloc_mem 1 24007 NULL
++give_pages_24021 give_pages 3 24021 NULL
++adis16400_show_serial_number_24037 adis16400_show_serial_number 3 24037 NULL
++hmac_setkey_24043 hmac_setkey 3 24043 NULL
++afs_cell_alloc_24052 afs_cell_alloc 2 24052 NULL
++blkcipher_copy_iv_24075 blkcipher_copy_iv 3 24075 NULL
++vb2_fop_read_24080 vb2_fop_read 3 24080 NULL
++pipeline_post_proc_swi_read_24108 pipeline_post_proc_swi_read 3 24108 NULL
++request_key_auth_read_24109 request_key_auth_read 3 24109 NULL
++lov_brw_24122 lov_brw 4 24122 NULL
++mpu401_read_24126 mpu401_read 3-0 24126 NULL
++_picolcd_flash_write_24134 _picolcd_flash_write 4 24134 NULL
++irnet_ctrl_write_24139 irnet_ctrl_write 3 24139 NULL nohasharray
++xfs_btree_increment_24139 xfs_btree_increment 0 24139 &irnet_ctrl_write_24139
++SyS_sethostname_24150 SyS_sethostname 2 24150 NULL
++trim_bitmaps_24158 trim_bitmaps 3 24158 NULL
++adu_read_24177 adu_read 3 24177 NULL
++safe_prepare_write_buffer_24187 safe_prepare_write_buffer 3 24187 NULL
++irq_remapping_setup_msi_irqs_24194 irq_remapping_setup_msi_irqs 2 24194 NULL
++ieee80211_if_read_dot11MeshHWMPpreqMinInterval_24208 ieee80211_if_read_dot11MeshHWMPpreqMinInterval 3 24208 NULL
++tcpprobe_sprint_24222 tcpprobe_sprint 0-2 24222 NULL
++pcpu_embed_first_chunk_24224 pcpu_embed_first_chunk 3-2-1 24224 NULL nohasharray
++mei_amthif_read_24224 mei_amthif_read 4 24224 &pcpu_embed_first_chunk_24224
++pci_num_vf_24235 pci_num_vf 0 24235 NULL
++sel_read_bool_24236 sel_read_bool 3 24236 NULL
++xfs_bmap_rtalloc_24237 xfs_bmap_rtalloc 0 24237 NULL
++em28xx_alloc_urbs_24260 em28xx_alloc_urbs 4-6 24260 NULL
++calculate_sizes_24273 calculate_sizes 2 24273 NULL
++thin_status_24278 thin_status 5 24278 NULL
++msg_size_24288 msg_size 0 24288 NULL
++gserial_connect_24302 gserial_connect 0 24302 NULL
++btmrvl_pscmd_read_24308 btmrvl_pscmd_read 3 24308 NULL
++reserve_metadata_bytes_24313 reserve_metadata_bytes 0 24313 NULL
++ath6kl_add_bss_if_needed_24317 ath6kl_add_bss_if_needed 6 24317 NULL
++si476x_radio_read_acf_blob_24336 si476x_radio_read_acf_blob 3 24336 NULL
++C_SYSC_pwritev_24345 C_SYSC_pwritev 3 24345 NULL
++prepare_pages_24349 prepare_pages 0 24349 NULL
++kzalloc_node_24352 kzalloc_node 1 24352 NULL
++qla2x00_handle_queue_full_24365 qla2x00_handle_queue_full 2 24365 NULL
++cfi_read_pri_24366 cfi_read_pri 3 24366 NULL
++btrfs_item_size_nr_24367 btrfs_item_size_nr 0 24367 NULL
++igetword_24373 igetword 0 24373 NULL nohasharray
++break_deleg_24373 break_deleg 0 24373 &igetword_24373
++max_io_len_24384 max_io_len 0-1 24384 NULL
++mpt_alloc_res_24387 mpt_alloc_res 5 24387 NULL
++xfs_bmapi_read_24392 xfs_bmapi_read 0 24392 NULL
++osc_cur_grant_bytes_seq_write_24396 osc_cur_grant_bytes_seq_write 3 24396 NULL
++getxattr_24398 getxattr 4 24398 NULL nohasharray
++pvr2_v4l2_ioctl_24398 pvr2_v4l2_ioctl 2 24398 &getxattr_24398
++blk_update_bidi_request_24415 blk_update_bidi_request 3-4 24415 NULL
++nvme_trans_log_supp_pages_24418 nvme_trans_log_supp_pages 3 24418 NULL
++b43_debugfs_read_24425 b43_debugfs_read 3 24425 NULL
++xenbus_file_read_24427 xenbus_file_read 3 24427 NULL
++ieee80211_rx_mgmt_beacon_24430 ieee80211_rx_mgmt_beacon 3 24430 NULL
++copy_and_ioctl_24434 copy_and_ioctl 4 24434 NULL
++ixgbe_alloc_q_vector_24439 ixgbe_alloc_q_vector 4-6 24439 NULL
++smk_user_access_24440 smk_user_access 3 24440 NULL nohasharray
++rtw_set_wps_assoc_resp_24440 rtw_set_wps_assoc_resp 3 24440 &smk_user_access_24440
++evdev_do_ioctl_24459 evdev_do_ioctl 2 24459 NULL
++lbs_highsnr_write_24460 lbs_highsnr_write 3 24460 NULL
++skb_copy_and_csum_datagram_iovec_24466 skb_copy_and_csum_datagram_iovec 2 24466 NULL
++ttm_page_pool_free_24486 ttm_page_pool_free 2-0 24486 NULL
++dut_mode_read_24489 dut_mode_read 3 24489 NULL
++read_file_spec_scan_ctl_24491 read_file_spec_scan_ctl 3 24491 NULL
++pd_video_read_24510 pd_video_read 3 24510 NULL
++request_key_with_auxdata_24515 request_key_with_auxdata 4 24515 NULL
++xfs_buf_get_map_24522 xfs_buf_get_map 3 24522 NULL
++do_mpage_readpage_24536 do_mpage_readpage 3 24536 NULL
++write_cache_pages_24562 write_cache_pages 0 24562 NULL
++SyS_pselect6_24582 SyS_pselect6 1 24582 NULL
++udf_compute_nr_groups_24594 udf_compute_nr_groups 0 24594 NULL
++sensor_hub_get_physical_device_count_24605 sensor_hub_get_physical_device_count 0 24605 NULL nohasharray
++lov_alloc_memmd_24605 lov_alloc_memmd 2 24605 &sensor_hub_get_physical_device_count_24605
++SyS_poll_24620 SyS_poll 2 24620 NULL
++context_alloc_24645 context_alloc 3 24645 NULL
++blk_rq_err_bytes_24650 blk_rq_err_bytes 0 24650 NULL
++xfs_log_commit_cil_24653 xfs_log_commit_cil 0 24653 NULL
++btrfs_check_data_free_space_24692 btrfs_check_data_free_space 0 24692 NULL
++datafab_write_data_24696 datafab_write_data 4 24696 NULL
++intelfbhw_get_p1p2_24703 intelfbhw_get_p1p2 2 24703 NULL
++simple_attr_read_24738 simple_attr_read 3 24738 NULL
++qla2x00_change_queue_depth_24742 qla2x00_change_queue_depth 2 24742 NULL
++get_dma_residue_24749 get_dma_residue 0 24749 NULL
++ocfs2_cow_file_pos_24751 ocfs2_cow_file_pos 3 24751 NULL
++kgdb_hex2mem_24755 kgdb_hex2mem 3 24755 NULL
++ocfs2_read_blocks_24777 ocfs2_read_blocks 0 24777 NULL
++datablob_hmac_verify_24786 datablob_hmac_verify 4 24786 NULL
++cache_read_24790 cache_read 3 24790 NULL
++user_regset_copyout_24796 user_regset_copyout 7 24796 NULL
++kvm_read_guest_virt_helper_24804 kvm_read_guest_virt_helper 3-1 24804 NULL
++ath6kl_fwlog_mask_write_24810 ath6kl_fwlog_mask_write 3 24810 NULL
++net2272_read_24825 net2272_read 0 24825 NULL
++snd_als4k_gcr_read_24840 snd_als4k_gcr_read 0 24840 NULL
++snd_pcm_lib_buffer_bytes_24865 snd_pcm_lib_buffer_bytes 0 24865 NULL
++pnp_alloc_24869 pnp_alloc 1 24869 NULL nohasharray
++l2cap_create_basic_pdu_24869 l2cap_create_basic_pdu 3 24869 &pnp_alloc_24869
++queues_read_24877 queues_read 3 24877 NULL
++__vxge_hw_vp_initialize_24885 __vxge_hw_vp_initialize 2 24885 NULL
++xfs_qm_dqattach_24898 xfs_qm_dqattach 0 24898 NULL
++codec_list_read_file_24910 codec_list_read_file 3 24910 NULL
++v4l2_ctrl_new_24927 v4l2_ctrl_new 7 24927 NULL nohasharray
++__btrfs_free_extent_24927 __btrfs_free_extent 7 24927 &v4l2_ctrl_new_24927
++ocfs2_fiemap_24949 ocfs2_fiemap 4-3 24949 NULL
++packet_sendmsg_24954 packet_sendmsg 4 24954 NULL
++twl_i2c_write_u8_24976 twl_i2c_write_u8 3 24976 NULL
++llc_ui_sendmsg_24987 llc_ui_sendmsg 4 24987 NULL
++slot_get_24999 slot_get 0 24999 NULL
++key_conf_hw_key_idx_read_25003 key_conf_hw_key_idx_read 3 25003 NULL
++il_dbgfs_channels_read_25005 il_dbgfs_channels_read 3 25005 NULL
++ni_660x_num_counters_25031 ni_660x_num_counters 0 25031 NULL
++nfs_dns_resolve_name_25036 nfs_dns_resolve_name 3 25036 NULL
++load_unaligned_zeropad_25050 load_unaligned_zeropad 0 25050 NULL
++btrfs_stack_key_blockptr_25058 btrfs_stack_key_blockptr 0 25058 NULL
++gs_buf_alloc_25067 gs_buf_alloc 2 25067 NULL
++ll_track_pid_seq_write_25068 ll_track_pid_seq_write 3 25068 NULL
++SYSC_listxattr_25072 SYSC_listxattr 3 25072 NULL
++ima_appraise_measurement_25093 ima_appraise_measurement 6 25093 NULL
++blkg_path_25099 blkg_path 3 25099 NULL
++snd_rawmidi_kernel_write_25106 snd_rawmidi_kernel_write 3 25106 NULL
++gfs2_quota_check_25130 gfs2_quota_check 0 25130 NULL
++ipath_init_qp_table_25167 ipath_init_qp_table 2 25167 NULL
++kvm_mmu_notifier_change_pte_25169 kvm_mmu_notifier_change_pte 3 25169 NULL
++sctp_getsockopt_local_addrs_25178 sctp_getsockopt_local_addrs 2 25178 NULL
++mon_stat_read_25238 mon_stat_read 3 25238 NULL
++stripe_status_25259 stripe_status 5 25259 NULL
++snd_pcm_start_25273 snd_pcm_start 0 25273 NULL
++crypto_alloc_instance2_25277 crypto_alloc_instance2 3 25277 NULL
++vfs_writev_25278 vfs_writev 3 25278 NULL
++l2tp_session_create_25286 l2tp_session_create 1 25286 NULL
++ath9k_debugfs_read_buf_25316 ath9k_debugfs_read_buf 3 25316 NULL
++rng_buffer_size_25348 rng_buffer_size 0 25348 NULL
++SYSC_kexec_load_25361 SYSC_kexec_load 2 25361 NULL
++unix_mkname_25368 unix_mkname 0-2 25368 NULL
++sel_read_mls_25369 sel_read_mls 3 25369 NULL
++vsp1_entity_init_25407 vsp1_entity_init 3 25407 NULL
++xfs_ialloc_pagi_init_25411 xfs_ialloc_pagi_init 0 25411 NULL
++dai_list_read_file_25421 dai_list_read_file 3 25421 NULL
++xfs_qm_dqtobp_25448 xfs_qm_dqtobp 0 25448 NULL
++generic_file_buffered_write_25464 generic_file_buffered_write 4-0-7 25464 NULL
++ipath_decode_err_25468 ipath_decode_err 3 25468 NULL
++crypto_hash_digestsize_25469 crypto_hash_digestsize 0 25469 NULL
++ivtv_buf_copy_from_user_25502 ivtv_buf_copy_from_user 4-0 25502 NULL
++snd_pcm_plugin_build_25505 snd_pcm_plugin_build 5 25505 NULL
++xfs_alloc_fix_freelist_25514 xfs_alloc_fix_freelist 0 25514 NULL
++sb_permission_25523 sb_permission 0 25523 NULL
++ext3_get_inode_loc_25542 ext3_get_inode_loc 0 25542 NULL
++ieee80211_if_read_path_refresh_time_25545 ieee80211_if_read_path_refresh_time 3 25545 NULL
++wimax_addr_scnprint_25548 wimax_addr_scnprint 2 25548 NULL
++ht_print_chan_25556 ht_print_chan 0-3-4 25556 NULL
++skb_tailroom_25567 skb_tailroom 0 25567 NULL
++ping_recvmsg_25597 ping_recvmsg 4 25597 NULL
++copy_user_generic_25611 copy_user_generic 0 25611 NULL
++proc_coredump_filter_write_25625 proc_coredump_filter_write 3 25625 NULL
++befs_utf2nls_25628 befs_utf2nls 3 25628 NULL nohasharray
++__get_user_pages_25628 __get_user_pages 0 25628 &befs_utf2nls_25628
++__direct_map_25647 __direct_map 5-6 25647 NULL
++aircable_prepare_write_buffer_25669 aircable_prepare_write_buffer 3 25669 NULL
++lpfc_idiag_cmd_get_25672 lpfc_idiag_cmd_get 2 25672 NULL
++sta_inactive_ms_read_25690 sta_inactive_ms_read 3 25690 NULL
++rx_filter_mc_filter_read_25712 rx_filter_mc_filter_read 3 25712 NULL
++ibmasm_new_command_25714 ibmasm_new_command 2 25714 NULL
++__alloc_bootmem_low_node_25726 __alloc_bootmem_low_node 2 25726 NULL nohasharray
++sel_write_context_25726 sel_write_context 3 25726 &__alloc_bootmem_low_node_25726
++cxgbi_device_portmap_create_25747 cxgbi_device_portmap_create 3 25747 NULL
++event_rx_pool_read_25792 event_rx_pool_read 3 25792 NULL
++sg_read_25799 sg_read 3 25799 NULL
++xfs_alloc_ag_vextent_exact_25810 xfs_alloc_ag_vextent_exact 0 25810 NULL
++system_enable_read_25815 system_enable_read 3 25815 NULL
++realloc_buffer_25816 realloc_buffer 2 25816 NULL
++pwr_missing_bcns_read_25824 pwr_missing_bcns_read 3 25824 NULL
++parport_read_25855 parport_read 0 25855 NULL
++xfs_dir2_sf_hdr_size_25858 xfs_dir2_sf_hdr_size 0 25858 NULL
++key_attr_size_25865 key_attr_size 0 25865 NULL
++ath6kl_regread_read_25884 ath6kl_regread_read 3 25884 NULL
++run_delalloc_nocow_25896 run_delalloc_nocow 3-4 25896 NULL
++sisusbcon_scroll_area_25899 sisusbcon_scroll_area 4-3 25899 NULL
++lpfc_change_queue_depth_25905 lpfc_change_queue_depth 2 25905 NULL
++nvme_trans_mode_page_create_25908 nvme_trans_mode_page_create 7-4 25908 NULL
++do_jffs2_setxattr_25910 do_jffs2_setxattr 5 25910 NULL
++rcname_read_25919 rcname_read 3 25919 NULL
++snd_es1938_capture_copy_25930 snd_es1938_capture_copy 5 25930 NULL
++key_flags_read_25931 key_flags_read 3 25931 NULL
++copy_play_buf_25932 copy_play_buf 3 25932 NULL
++flush_25957 flush 2 25957 NULL
++udp_setsockopt_25985 udp_setsockopt 5 25985 NULL
++lustre_msg_buflen_v2_25997 lustre_msg_buflen_v2 0 25997 NULL
++SyS_process_vm_readv_26019 SyS_process_vm_readv 3-5 26019 NULL
++mptscsih_change_queue_depth_26036 mptscsih_change_queue_depth 2 26036 NULL
++selinux_inode_post_setxattr_26037 selinux_inode_post_setxattr 4 26037 NULL
++keyctl_update_key_26061 keyctl_update_key 3 26061 NULL
++btrfs_wait_ordered_range_26086 btrfs_wait_ordered_range 0 26086 NULL
++rx_rx_wa_density_dropped_frame_read_26095 rx_rx_wa_density_dropped_frame_read 3 26095 NULL
++i8042_pnp_id_to_string_26108 i8042_pnp_id_to_string 3 26108 NULL
++read_sb_page_26119 read_sb_page 5 26119 NULL
++ath9k_hw_name_26146 ath9k_hw_name 3 26146 NULL
++copy_oldmem_page_26164 copy_oldmem_page 3 26164 NULL
++gfs2_xattr_acl_get_26166 gfs2_xattr_acl_get 0 26166 NULL nohasharray
++ath6kl_roam_table_read_26166 ath6kl_roam_table_read 3 26166 &gfs2_xattr_acl_get_26166
++disk_devt_26180 disk_devt 0 26180 NULL
++cgroup_setxattr_26188 cgroup_setxattr 4 26188 NULL
++ieee80211_if_fmt_dot11MeshTTL_26198 ieee80211_if_fmt_dot11MeshTTL 3 26198 NULL
++xfs_idata_realloc_26199 xfs_idata_realloc 2 26199 NULL
++mce_write_26201 mce_write 3 26201 NULL
++mwifiex_regrdwr_write_26225 mwifiex_regrdwr_write 3 26225 NULL
++_scsih_change_queue_depth_26230 _scsih_change_queue_depth 2 26230 NULL
++rxrpc_recvmsg_26233 rxrpc_recvmsg 4 26233 NULL
++simple_setattr_26234 simple_setattr 0 26234 NULL
++genwqe_ffdc_buff_size_26263 genwqe_ffdc_buff_size 0 26263 NULL
++crypto_ctxsize_26278 crypto_ctxsize 0 26278 NULL
++apei_resources_request_26279 apei_resources_request 0 26279 NULL
++wacom_set_device_mode_26280 wacom_set_device_mode 3 26280 NULL
++snd_pcm_plug_client_channels_buf_26309 snd_pcm_plug_client_channels_buf 0-3 26309 NULL
++pwr_wake_on_host_read_26321 pwr_wake_on_host_read 3 26321 NULL
++check_can_nocow_26336 check_can_nocow 2 26336 NULL
++snd_vx_check_reg_bit_26344 snd_vx_check_reg_bit 0 26344 NULL
++ocfs2_duplicate_clusters_by_page_26357 ocfs2_duplicate_clusters_by_page 6-3 26357 NULL
++cifs_readdata_alloc_26360 cifs_readdata_alloc 1 26360 NULL
++invalidate_inode_pages2_range_26403 invalidate_inode_pages2_range 0 26403 NULL
++ntty_write_26404 ntty_write 3 26404 NULL
++firmware_store_26408 firmware_store 4 26408 NULL
++pagemap_read_26441 pagemap_read 3 26441 NULL
++tower_read_26461 tower_read 3 26461 NULL nohasharray
++enc_pools_add_pages_26461 enc_pools_add_pages 1 26461 &tower_read_26461
++ib_alloc_device_26483 ib_alloc_device 1 26483 NULL
++ulong_write_file_26485 ulong_write_file 3 26485 NULL
++dvb_ca_en50221_io_ioctl_26490 dvb_ca_en50221_io_ioctl 2 26490 NULL
++read_vmcore_26501 read_vmcore 3 26501 NULL
++uhid_char_write_26502 uhid_char_write 3 26502 NULL
++vfio_pci_set_msi_trigger_26507 vfio_pci_set_msi_trigger 4-3 26507 NULL
++iwl_dbgfs_rf_reset_read_26512 iwl_dbgfs_rf_reset_read 3 26512 NULL
++alloc_ep_req_26521 alloc_ep_req 3-2 26521 NULL
++SyS_rt_sigpending_26538 SyS_rt_sigpending 2 26538 NULL
++__vhost_add_used_n_26554 __vhost_add_used_n 3 26554 NULL
++dio_new_bio_26562 dio_new_bio 0 26562 NULL
++rts51x_read_mem_26577 rts51x_read_mem 4 26577 NULL
++xfs_rtcheck_range_26614 xfs_rtcheck_range 0 26614 NULL
++pwr_fix_tsf_ps_read_26627 pwr_fix_tsf_ps_read 3 26627 NULL
++irq_alloc_generic_chip_26650 irq_alloc_generic_chip 2 26650 NULL nohasharray
++inb_p_26650 inb_p 0 26650 &irq_alloc_generic_chip_26650
++nouveau_volt_create__26654 nouveau_volt_create_ 4 26654 NULL
++cipso_v4_map_cat_rbm_hton_26680 cipso_v4_map_cat_rbm_hton 0 26680 NULL
++flowinfo_read_26683 flowinfo_read 3 26683 NULL
++sysfs_add_file_26716 sysfs_add_file 0 26716 NULL
++nouveau_namedb_create__26732 nouveau_namedb_create_ 7 26732 NULL
++pipeline_tcp_rx_stat_fifo_int_read_26745 pipeline_tcp_rx_stat_fifo_int_read 3 26745 NULL
++bos_desc_26752 bos_desc 0 26752 NULL
++snd_hda_get_raw_connections_26762 snd_hda_get_raw_connections 0 26762 NULL
++dma_map_single_attrs_26779 dma_map_single_attrs 0 26779 NULL
++qlcnic_alloc_sds_rings_26795 qlcnic_alloc_sds_rings 2 26795 NULL
++cipso_v4_genopt_26812 cipso_v4_genopt 0 26812 NULL
++iwl_trans_read_mem32_26825 iwl_trans_read_mem32 0 26825 NULL
++smk_write_load_26829 smk_write_load 3 26829 NULL
++xfs_alloc_pagf_init_26834 xfs_alloc_pagf_init 0 26834 NULL
++scnprint_id_26842 scnprint_id 3-0 26842 NULL
++ecryptfs_miscdev_write_26847 ecryptfs_miscdev_write 3 26847 NULL
++ss_alloc_ep_req_26848 ss_alloc_ep_req 2 26848 NULL
++tipc_conn_sendmsg_26867 tipc_conn_sendmsg 5 26867 NULL
++ath6kl_create_qos_write_26879 ath6kl_create_qos_write 3 26879 NULL
++svc_print_xprts_26881 svc_print_xprts 0 26881 NULL
++ms_read_bytes_26894 ms_read_bytes 6 26894 NULL
++skb_zerocopy_headlen_26910 skb_zerocopy_headlen 0 26910 NULL
++hhf_zalloc_26912 hhf_zalloc 1 26912 NULL
++cfg80211_process_auth_26916 cfg80211_process_auth 3 26916 NULL
++x25_asy_change_mtu_26928 x25_asy_change_mtu 2 26928 NULL
++scsi_tgt_copy_sense_26933 scsi_tgt_copy_sense 3 26933 NULL
++sctp_setsockopt_adaptation_layer_26935 sctp_setsockopt_adaptation_layer 3 26935 NULL nohasharray
++pwr_ps_enter_read_26935 pwr_ps_enter_read 3 26935 &sctp_setsockopt_adaptation_layer_26935
++hecubafb_write_26942 hecubafb_write 3 26942 NULL
++do_trimming_26952 do_trimming 3 26952 NULL nohasharray
++extract_entropy_user_26952 extract_entropy_user 3 26952 &do_trimming_26952
++do_direct_IO_26979 do_direct_IO 0 26979 NULL
++xfs_filestream_associate_27030 xfs_filestream_associate 0 27030 NULL
++__videobuf_alloc_vb_27062 __videobuf_alloc_vb 1 27062 NULL
++ext4_convert_unwritten_extents_27064 ext4_convert_unwritten_extents 4-3-0 27064 NULL
++snd_pcm_lib_period_bytes_27071 snd_pcm_lib_period_bytes 0 27071 NULL
++paravirt_read_msr_27077 paravirt_read_msr 0 27077 NULL
++alloc_fdmem_27083 alloc_fdmem 1 27083 NULL
++btmrvl_hscmd_write_27089 btmrvl_hscmd_write 3 27089 NULL nohasharray
++ath9k_hw_4k_dump_eeprom_27089 ath9k_hw_4k_dump_eeprom 5-4 27089 &btmrvl_hscmd_write_27089
++__devcgroup_inode_permission_27108 __devcgroup_inode_permission 0 27108 NULL
++get_kernel_page_27133 get_kernel_page 0 27133 NULL
++drbd_get_capacity_27141 drbd_get_capacity 0 27141 NULL
++pms_capture_27142 pms_capture 4 27142 NULL
++btmrvl_hscfgcmd_write_27143 btmrvl_hscfgcmd_write 3 27143 NULL
++snd_compr_calc_avail_27165 snd_compr_calc_avail 0 27165 NULL
++ieee80211_if_read_rc_rateidx_mask_5ghz_27183 ieee80211_if_read_rc_rateidx_mask_5ghz 3 27183 NULL
++__sg_alloc_table_27198 __sg_alloc_table 0 27198 NULL
++write_kmem_27225 write_kmem 3 27225 NULL
++dbAllocAG_27228 dbAllocAG 0 27228 NULL
++rxrpc_request_key_27235 rxrpc_request_key 3 27235 NULL
++ll_track_gid_seq_write_27267 ll_track_gid_seq_write 3 27267 NULL
++comedi_alloc_devpriv_27272 comedi_alloc_devpriv 2 27272 NULL
++copy_from_buf_27308 copy_from_buf 4-2 27308 NULL
++virtqueue_add_inbuf_27312 virtqueue_add_inbuf 3 27312 NULL
++snd_pcm_oss_write2_27332 snd_pcm_oss_write2 3-0 27332 NULL
++afs_cell_create_27346 afs_cell_create 2 27346 NULL
++iwl_dbgfs_csr_write_27363 iwl_dbgfs_csr_write 3 27363 NULL
++pcbit_stat_27364 pcbit_stat 2 27364 NULL
++seq_read_27411 seq_read 3 27411 NULL
++ib_dma_map_sg_27413 ib_dma_map_sg 0 27413 NULL
++ieee80211_if_read_smps_27416 ieee80211_if_read_smps 3 27416 NULL
++ocfs2_refcount_cal_cow_clusters_27422 ocfs2_refcount_cal_cow_clusters 0-3-4 27422 NULL
++cypress_write_27423 cypress_write 4 27423 NULL
++sddr09_read_data_27447 sddr09_read_data 3 27447 NULL
++xfs_btree_lookup_get_block_27448 xfs_btree_lookup_get_block 0 27448 NULL
++v4l2_ctrl_new_std_menu_items_27487 v4l2_ctrl_new_std_menu_items 4 27487 NULL
++hcd_buffer_alloc_27495 hcd_buffer_alloc 2 27495 NULL
++ip_set_get_h32_27498 ip_set_get_h32 0 27498 NULL
++btrfs_get_64_27499 btrfs_get_64 0 27499 NULL
++garmin_read_process_27509 garmin_read_process 3 27509 NULL
++oti_alloc_cookies_27510 oti_alloc_cookies 2 27510 NULL
++ib_copy_to_udata_27525 ib_copy_to_udata 3 27525 NULL
++snd_sonicvibes_getdmaa_27552 snd_sonicvibes_getdmaa 0 27552 NULL
++SyS_fgetxattr_27571 SyS_fgetxattr 4 27571 NULL
++sco_sock_recvmsg_27572 sco_sock_recvmsg 4 27572 NULL
++libipw_alloc_txb_27579 libipw_alloc_txb 1 27579 NULL
++ocfs2_xattr_ibody_get_27642 ocfs2_xattr_ibody_get 0 27642 NULL nohasharray
++nl80211_send_connect_result_27642 nl80211_send_connect_result 5-7 27642 &ocfs2_xattr_ibody_get_27642 nohasharray
++read_flush_procfs_27642 read_flush_procfs 3 27642 &nl80211_send_connect_result_27642 nohasharray
++ocfs2_direct_IO_27642 ocfs2_direct_IO 4 27642 &read_flush_procfs_27642 nohasharray
++xfs_alloc_vextent_27642 xfs_alloc_vextent 0 27642 &ocfs2_direct_IO_27642
++add_new_gdb_27643 add_new_gdb 3 27643 NULL
++btrfs_fallocate_27647 btrfs_fallocate 3-4 27647 NULL
++qnx6_readpages_27657 qnx6_readpages 4 27657 NULL
++cdrom_read_cdda_old_27664 cdrom_read_cdda_old 4 27664 NULL
++ocfs2_extend_dir_27695 ocfs2_extend_dir 4 27695 NULL
++fs_path_add_from_extent_buffer_27702 fs_path_add_from_extent_buffer 4 27702 NULL
++evm_write_key_27715 evm_write_key 3 27715 NULL
++ieee80211_if_fmt_dot11MeshGateAnnouncementProtocol_27722 ieee80211_if_fmt_dot11MeshGateAnnouncementProtocol 3 27722 NULL
++xfs_dir2_block_sfsize_27727 xfs_dir2_block_sfsize 0 27727 NULL
++SyS_setsockopt_27759 SyS_setsockopt 5 27759 NULL
++__lov_setstripe_27782 __lov_setstripe 2 27782 NULL
++twl4030_set_gpio_dataout_27792 twl4030_set_gpio_dataout 1 27792 NULL
++SyS_readv_27804 SyS_readv 3 27804 NULL
++mpihelp_mul_27805 mpihelp_mul 5-3 27805 NULL
++hpt374_read_freq_27828 hpt374_read_freq 0 27828 NULL
++init_header_complete_27833 init_header_complete 0 27833 NULL
++read_profile_27859 read_profile 3 27859 NULL
++sky2_pci_read16_27863 sky2_pci_read16 0 27863 NULL
++ieee80211_if_read_dot11MeshHWMProotInterval_27873 ieee80211_if_read_dot11MeshHWMProotInterval 3 27873 NULL
++unix_seqpacket_sendmsg_27893 unix_seqpacket_sendmsg 4 27893 NULL
++check_mapped_name_27943 check_mapped_name 3 27943 NULL
++bio_next_split_27961 bio_next_split 2 27961 NULL nohasharray
++tracing_clock_write_27961 tracing_clock_write 3 27961 &bio_next_split_27961
++security_path_chown_27966 security_path_chown 0 27966 NULL
++tipc_media_addr_printf_27971 tipc_media_addr_printf 2 27971 NULL
++device_register_27972 device_register 0 27972 NULL nohasharray
++mic_rx_pkts_read_27972 mic_rx_pkts_read 3 27972 &device_register_27972
++xfs_alloc_fixup_trees_27975 xfs_alloc_fixup_trees 0 27975 NULL
++pci_enable_device_flags_27977 pci_enable_device_flags 0 27977 NULL nohasharray
++__kernfs_setattr_27977 __kernfs_setattr 0 27977 &pci_enable_device_flags_27977
++edt_ft5x06_debugfs_raw_data_read_28002 edt_ft5x06_debugfs_raw_data_read 3 28002 NULL
++seq_get_buf_28006 seq_get_buf 0 28006 NULL
++snd_rawmidi_write_28008 snd_rawmidi_write 3 28008 NULL
++powercap_register_zone_28028 powercap_register_zone 6 28028 NULL
++sctp_setsockopt_maxburst_28041 sctp_setsockopt_maxburst 3 28041 NULL
++rts51x_xd_rw_28046 rts51x_xd_rw 3-4 28046 NULL
++cx231xx_init_vbi_isoc_28053 cx231xx_init_vbi_isoc 3-2-4 28053 NULL
++pool_status_28055 pool_status 5 28055 NULL
++init_rs_non_canonical_28059 init_rs_non_canonical 1 28059 NULL
++lpfc_idiag_mbxacc_read_28061 lpfc_idiag_mbxacc_read 3 28061 NULL
++tx_frag_bad_mblk_num_read_28064 tx_frag_bad_mblk_num_read 3 28064 NULL
++mmc_test_alloc_mem_28102 mmc_test_alloc_mem 3-2 28102 NULL
++rx_defrag_need_defrag_read_28117 rx_defrag_need_defrag_read 3 28117 NULL
++vgacon_adjust_height_28124 vgacon_adjust_height 2 28124 NULL
++memblock_virt_alloc_from_nopanic_28146 memblock_virt_alloc_from_nopanic 1 28146 NULL
++video_read_28148 video_read 3 28148 NULL
++snd_midi_channel_alloc_set_28153 snd_midi_channel_alloc_set 1 28153 NULL
++stats_dot11FCSErrorCount_read_28154 stats_dot11FCSErrorCount_read 3 28154 NULL
++vread_28173 vread 0-3 28173 NULL
++macvtap_get_user_28185 macvtap_get_user 4 28185 NULL
++counter_free_res_28187 counter_free_res 5 28187 NULL
++read_disk_sb_28188 read_disk_sb 2 28188 NULL
++nouveau_mxm_create__28200 nouveau_mxm_create_ 4 28200 NULL
++__qp_memcpy_from_queue_28220 __qp_memcpy_from_queue 3-4 28220 NULL
++line6_alloc_sysex_buffer_28225 line6_alloc_sysex_buffer 4 28225 NULL
++amd_nb_num_28228 amd_nb_num 0 28228 NULL
++fuse_direct_IO_28275 fuse_direct_IO 4 28275 NULL
++usemap_size_28281 usemap_size 0 28281 NULL
++inline_xattr_size_28285 inline_xattr_size 0 28285 NULL
++dma_map_sg_attrs_28289 dma_map_sg_attrs 0 28289 NULL
++SyS_ppoll_28290 SyS_ppoll 2 28290 NULL
++kstrtos16_from_user_28300 kstrtos16_from_user 2 28300 NULL
++nouveau_compat_ioctl_28305 nouveau_compat_ioctl 2 28305 NULL
++snd_pcm_oss_read_28317 snd_pcm_oss_read 3 28317 NULL
++security_inode_link_28327 security_inode_link 0 28327 NULL
++generic_write_checks_28329 generic_write_checks 0 28329 NULL
++bm_entry_write_28338 bm_entry_write 3 28338 NULL
++tcp_copy_to_iovec_28344 tcp_copy_to_iovec 3 28344 NULL
++snapshot_write_28351 snapshot_write 3 28351 NULL
++xfs_iomap_write_unwritten_28365 xfs_iomap_write_unwritten 3-2 28365 NULL
++batadv_handle_tt_response_28370 batadv_handle_tt_response 4 28370 NULL
++dlmfs_file_read_28385 dlmfs_file_read 3 28385 NULL
++tx_frag_cache_miss_read_28394 tx_frag_cache_miss_read 3 28394 NULL
++bypass_pwup_write_28416 bypass_pwup_write 3 28416 NULL
++subdev_ioctl_28417 subdev_ioctl 2 28417 NULL
++ksocknal_alloc_tx_28426 ksocknal_alloc_tx 2 28426 NULL
++mpage_readpages_28436 mpage_readpages 3 28436 NULL
++xfs_rtfind_back_28450 xfs_rtfind_back 0 28450 NULL
++snd_emu10k1_efx_read_28452 snd_emu10k1_efx_read 2 28452 NULL
++key_mic_failures_read_28457 key_mic_failures_read 3 28457 NULL
++alloc_irq_cpu_rmap_28459 alloc_irq_cpu_rmap 1 28459 NULL
++__filemap_fdatawrite_28485 __filemap_fdatawrite 0 28485 NULL
++ps_poll_upsd_utilization_read_28519 ps_poll_upsd_utilization_read 3 28519 NULL
++i2400m_tx_stats_read_28527 i2400m_tx_stats_read 3 28527 NULL
++sel_read_policycap_28544 sel_read_policycap 3 28544 NULL
++mptctl_getiocinfo_28545 mptctl_getiocinfo 2 28545 NULL nohasharray
++run_delalloc_range_28545 run_delalloc_range 3-4 28545 &mptctl_getiocinfo_28545 nohasharray
++aio_read_events_28545 aio_read_events 3 28545 &run_delalloc_range_28545
++sysfs_create_bin_file_28551 sysfs_create_bin_file 0 28551 NULL
++b43legacy_debugfs_write_28556 b43legacy_debugfs_write 3 28556 NULL
++asymmetric_verify_28567 asymmetric_verify 3 28567 NULL
++gfs2_meta_indirect_buffer_28573 gfs2_meta_indirect_buffer 0 28573 NULL
++oxygen_read32_28582 oxygen_read32 0 28582 NULL
++extract_entropy_28604 extract_entropy 5-3 28604 NULL
++kfifo_unused_28612 kfifo_unused 0 28612 NULL
++snd_nm256_capture_copy_28622 snd_nm256_capture_copy 5-3 28622 NULL
++setup_usemap_28636 setup_usemap 3-4 28636 NULL
++qib_handle_6120_hwerrors_28642 qib_handle_6120_hwerrors 3 28642 NULL
++xfs_bmap_finish_28644 xfs_bmap_finish 0 28644 NULL
++p9_fcall_alloc_28652 p9_fcall_alloc 1 28652 NULL
++read_nic_io_byte_28654 read_nic_io_byte 0 28654 NULL
++blk_queue_resize_tags_28670 blk_queue_resize_tags 2 28670 NULL
++SyS_setgroups16_28686 SyS_setgroups16 1 28686 NULL
++kvm_mmu_get_page_28692 kvm_mmu_get_page 2 28692 NULL
++drm_plane_init_28731 drm_plane_init 6 28731 NULL
++spi_execute_28736 spi_execute 5 28736 NULL
++snd_pcm_aio_write_28738 snd_pcm_aio_write 3 28738 NULL
++read_file_btcoex_28743 read_file_btcoex 3 28743 NULL
++max_hw_blocks_28748 max_hw_blocks 0 28748 NULL
++rpc_pipe_generic_upcall_28766 rpc_pipe_generic_upcall 4 28766 NULL
++ath6kl_get_num_reg_28780 ath6kl_get_num_reg 0 28780 NULL
++sel_write_member_28800 sel_write_member 3 28800 NULL
++iwl_dbgfs_rxon_filter_flags_read_28832 iwl_dbgfs_rxon_filter_flags_read 3 28832 NULL
++vp_request_msix_vectors_28849 vp_request_msix_vectors 2 28849 NULL
++ipv6_renew_options_28867 ipv6_renew_options 5 28867 NULL
++max_io_len_target_boundary_28879 max_io_len_target_boundary 0-1 28879 NULL
++packet_sendmsg_spkt_28885 packet_sendmsg_spkt 4 28885 NULL
++da9055_group_write_28904 da9055_group_write 2-3 28904 NULL
++ps_upsd_timeouts_read_28924 ps_upsd_timeouts_read 3 28924 NULL
++iwl_dbgfs_sleep_level_override_write_28925 iwl_dbgfs_sleep_level_override_write 3 28925 NULL
++push_rx_28939 push_rx 3 28939 NULL
++mxuport_prepare_write_buffer_28943 mxuport_prepare_write_buffer 3 28943 NULL
++btrfs_trim_block_group_28963 btrfs_trim_block_group 3-4 28963 NULL
++alloc_sched_domains_28972 alloc_sched_domains 1 28972 NULL
++hash_net6_expire_28979 hash_net6_expire 4 28979 NULL
++xfs_alloc_update_28982 xfs_alloc_update 0 28982 NULL
++hci_sock_setsockopt_28993 hci_sock_setsockopt 5 28993 NULL
++bin_uuid_28999 bin_uuid 3 28999 NULL
++fd_execute_rw_29004 fd_execute_rw 3 29004 NULL
++ieee80211_if_read_ht_opmode_29044 ieee80211_if_read_ht_opmode 3 29044 NULL
++rxrpc_sendmsg_29049 rxrpc_sendmsg 4 29049 NULL
++btrfs_root_bytenr_29058 btrfs_root_bytenr 0 29058 NULL
++iso_packets_buffer_init_29061 iso_packets_buffer_init 3-4 29061 NULL
++lpfc_idiag_extacc_drivr_get_29067 lpfc_idiag_extacc_drivr_get 0-3 29067 NULL
++sctp_getsockopt_assoc_stats_29074 sctp_getsockopt_assoc_stats 2 29074 NULL
++xfs_alloc_ag_vextent_small_29084 xfs_alloc_ag_vextent_small 0 29084 NULL
++iwl_dbgfs_log_event_write_29088 iwl_dbgfs_log_event_write 3 29088 NULL
++i915_error_object_create_sized_29091 i915_error_object_create_sized 3 29091 NULL
++ccp_init_dm_workarea_29097 ccp_init_dm_workarea 3 29097 NULL
++isdn_ppp_write_29109 isdn_ppp_write 4 29109 NULL
++snprintf_29125 snprintf 0 29125 NULL
++iov_shorten_29130 iov_shorten 0 29130 NULL
++proc_scsi_write_29142 proc_scsi_write 3 29142 NULL
++kvm_mmu_notifier_clear_flush_young_29154 kvm_mmu_notifier_clear_flush_young 3 29154 NULL
++drm_property_create_enum_29201 drm_property_create_enum 5 29201 NULL
++wusb_prf_256_29203 wusb_prf_256 7 29203 NULL
++iwl_dbgfs_temperature_read_29224 iwl_dbgfs_temperature_read 3 29224 NULL
++nvme_trans_copy_from_user_29227 nvme_trans_copy_from_user 3 29227 NULL
++irq_domain_add_linear_29236 irq_domain_add_linear 2 29236 NULL
++evdev_handle_get_val_29242 evdev_handle_get_val 5-6 29242 NULL
++security_context_to_sid_core_29248 security_context_to_sid_core 2 29248 NULL
++prism2_set_genericelement_29277 prism2_set_genericelement 3 29277 NULL
++ext4_fiemap_29296 ext4_fiemap 4 29296 NULL
++xfs_bmap_btree_to_extents_29297 xfs_bmap_btree_to_extents 0 29297 NULL
++sn9c102_read_29305 sn9c102_read 3 29305 NULL
++__fuse_get_req_29315 __fuse_get_req 2 29315 NULL
++lprocfs_write_helper_29323 lprocfs_write_helper 2 29323 NULL
++xfs_bmbt_change_owner_29325 xfs_bmbt_change_owner 0 29325 NULL
++kvm_handle_hva_29326 kvm_handle_hva 2 29326 NULL
++tun_put_user_29337 tun_put_user 5 29337 NULL
++__alloc_ei_netdev_29338 __alloc_ei_netdev 1 29338 NULL
++l2cap_sock_setsockopt_old_29346 l2cap_sock_setsockopt_old 4 29346 NULL
++read_file_tx99_power_29405 read_file_tx99_power 3 29405 NULL
++mempool_create_29437 mempool_create 1 29437 NULL
++crypto_ahash_alignmask_29445 crypto_ahash_alignmask 0 29445 NULL
++p9_client_prepare_req_29448 p9_client_prepare_req 3 29448 NULL
++validate_scan_freqs_29462 validate_scan_freqs 0 29462 NULL
++SyS_flistxattr_29474 SyS_flistxattr 3 29474 NULL
++do_register_entry_29478 do_register_entry 4 29478 NULL
++simple_strtoul_29480 simple_strtoul 0 29480 NULL
++btmrvl_pscmd_write_29504 btmrvl_pscmd_write 3 29504 NULL
++btrfs_file_extent_disk_bytenr_29505 btrfs_file_extent_disk_bytenr 0 29505 NULL
++usnic_vnic_spec_dump_29508 usnic_vnic_spec_dump 2 29508 NULL
++write_file_regidx_29517 write_file_regidx 3 29517 NULL
++atk_debugfs_ggrp_read_29522 atk_debugfs_ggrp_read 3 29522 NULL
++add_to_page_cache_lru_29534 add_to_page_cache_lru 0 29534 NULL
++ftrace_write_29551 ftrace_write 3 29551 NULL
++idetape_queue_rw_tail_29562 idetape_queue_rw_tail 3 29562 NULL
++leaf_dealloc_29566 leaf_dealloc 3-2 29566 NULL
++kvm_read_guest_virt_system_29569 kvm_read_guest_virt_system 4-2 29569 NULL
++lbs_lowsnr_read_29571 lbs_lowsnr_read 3 29571 NULL
++security_path_chmod_29578 security_path_chmod 0 29578 NULL
++iwl_dbgfs_missed_beacon_write_29586 iwl_dbgfs_missed_beacon_write 3 29586 NULL
++pvr2_hdw_report_unlocked_29589 pvr2_hdw_report_unlocked 4-0 29589 NULL
++dio_set_defer_completion_29599 dio_set_defer_completion 0 29599 NULL
++slots_per_page_29601 slots_per_page 0 29601 NULL
++osc_cached_mb_seq_write_29610 osc_cached_mb_seq_write 3 29610 NULL
++nla_get_u16_29624 nla_get_u16 0 29624 NULL
++gfs2_alloc_blocks_29630 gfs2_alloc_blocks 0 29630 NULL
++tx_frag_cache_hit_read_29639 tx_frag_cache_hit_read 3 29639 NULL
++sctp_make_abort_user_29654 sctp_make_abort_user 3 29654 NULL
++sisusb_write_mem_bulk_29678 sisusb_write_mem_bulk 4 29678 NULL
++lustre_posix_acl_xattr_2ext_29693 lustre_posix_acl_xattr_2ext 2 29693 NULL
++posix_acl_from_xattr_29708 posix_acl_from_xattr 3 29708 NULL
++probes_write_29711 probes_write 3 29711 NULL
++read_cis_cache_29735 read_cis_cache 4 29735 NULL
++xfs_new_eof_29737 xfs_new_eof 2 29737 NULL
++std_nic_write_29752 std_nic_write 3 29752 NULL
++static_key_count_29771 static_key_count 0 29771 NULL
++dbAlloc_29794 dbAlloc 0 29794 NULL
++tcp_sendpage_29829 tcp_sendpage 4 29829 NULL
++__probe_kernel_write_29842 __probe_kernel_write 3 29842 NULL
++kvm_read_hva_atomic_29848 kvm_read_hva_atomic 3 29848 NULL
++count_partial_29850 count_partial 0 29850 NULL
++xfs_rtfind_forw_29866 xfs_rtfind_forw 0 29866 NULL
++write_file_bool_bmps_29870 write_file_bool_bmps 3 29870 NULL
++ipv6_setsockopt_29871 ipv6_setsockopt 5 29871 NULL
++scsi_end_request_29876 scsi_end_request 3 29876 NULL
++crypto_aead_alignmask_29885 crypto_aead_alignmask 0 29885 NULL
++xfs_alloc_read_agf_29893 xfs_alloc_read_agf 0 29893 NULL
++lov_ost_pool_extend_29914 lov_ost_pool_extend 2 29914 NULL
++write_file_queue_29922 write_file_queue 3 29922 NULL
++__btrfs_getxattr_29947 __btrfs_getxattr 0 29947 NULL nohasharray
++ipv6_recv_error_29947 ipv6_recv_error 3 29947 &__btrfs_getxattr_29947
++dev_mem_write_30028 dev_mem_write 3 30028 NULL
++alloc_netdev_mqs_30030 alloc_netdev_mqs 1 30030 NULL
++sysfs_add_file_mode_ns_30038 sysfs_add_file_mode_ns 0 30038 NULL
++scsi_vpd_inquiry_30040 scsi_vpd_inquiry 4 30040 NULL
++drp_wmove_30043 drp_wmove 4 30043 NULL
++mem_cgroup_charge_common_30047 mem_cgroup_charge_common 0 30047 NULL
++__pci_request_selected_regions_30058 __pci_request_selected_regions 0 30058 NULL
++cxgbi_ddp_reserve_30091 cxgbi_ddp_reserve 4 30091 NULL
++snd_midi_channel_init_set_30092 snd_midi_channel_init_set 1 30092 NULL
++rx_filter_data_filter_read_30098 rx_filter_data_filter_read 3 30098 NULL
++defragment_dma_buffer_30113 defragment_dma_buffer 0 30113 NULL
++xfs_iget_cache_miss_30115 xfs_iget_cache_miss 0 30115 NULL
++spi_async_locked_30117 spi_async_locked 0 30117 NULL
++recv_stream_30138 recv_stream 4 30138 NULL
++u_memcpya_30139 u_memcpya 3-2 30139 NULL
++dbg_port_buf_30145 dbg_port_buf 2 30145 NULL
++elfcorehdr_read_30159 elfcorehdr_read 2 30159 NULL
++alloc_switch_ctx_30165 alloc_switch_ctx 2 30165 NULL
++expand_inode_data_30169 expand_inode_data 3-2 30169 NULL
++mempool_create_page_pool_30189 mempool_create_page_pool 1 30189 NULL
++drm_property_create_bitmask_30195 drm_property_create_bitmask 5 30195 NULL
++__genwqe_readq_30197 __genwqe_readq 0 30197 NULL
++usblp_ioctl_30203 usblp_ioctl 2 30203 NULL
++read_4k_modal_eeprom_30212 read_4k_modal_eeprom 3 30212 NULL
++SyS_semop_30227 SyS_semop 3 30227 NULL
++bitmap_file_set_bit_30228 bitmap_file_set_bit 2 30228 NULL
++shmem_unuse_inode_30263 shmem_unuse_inode 0 30263 NULL
++rawv6_recvmsg_30265 rawv6_recvmsg 4 30265 NULL
++try_break_deleg_30271 try_break_deleg 0 30271 NULL nohasharray
++isr_pci_pm_read_30271 isr_pci_pm_read 3 30271 &try_break_deleg_30271
++compat_readv_30273 compat_readv 3 30273 NULL
++skcipher_sendmsg_30290 skcipher_sendmsg 4 30290 NULL
++pipeline_sec_frag_swi_read_30294 pipeline_sec_frag_swi_read 3 30294 NULL
++tcp_sendmsg_30296 tcp_sendmsg 4 30296 NULL
++osc_contention_seconds_seq_write_30305 osc_contention_seconds_seq_write 3 30305 NULL
++ext4_acl_from_disk_30320 ext4_acl_from_disk 2 30320 NULL
++i8254_read_30330 i8254_read 0 30330 NULL
++resource_from_user_30341 resource_from_user 3 30341 NULL
++o2nm_this_node_30342 o2nm_this_node 0 30342 NULL
++gfs2_trans_begin_30359 gfs2_trans_begin 0 30359 NULL
++kstrtou32_from_user_30361 kstrtou32_from_user 2 30361 NULL
++pagecache_write_begin_30364 pagecache_write_begin 0 30364 NULL
++C_SYSC_readv_30369 C_SYSC_readv 3 30369 NULL
++blkdev_issue_zeroout_30392 blkdev_issue_zeroout 3 30392 NULL
++c4iw_init_resource_30393 c4iw_init_resource 2-3 30393 NULL
++get_kernel_pages_30397 get_kernel_pages 0 30397 NULL
++vb2_fop_write_30420 vb2_fop_write 3 30420 NULL
++tx_tx_template_prepared_read_30424 tx_tx_template_prepared_read 3 30424 NULL
++lstcon_session_info_30425 lstcon_session_info 6 30425 NULL
++enable_write_30456 enable_write 3 30456 NULL
++tx_tx_template_programmed_read_30461 tx_tx_template_programmed_read 3 30461 NULL
++urandom_read_30462 urandom_read 3 30462 NULL
++zoran_ioctl_30465 zoran_ioctl 2 30465 NULL
++i2c_ctrl_read_30467 i2c_ctrl_read 0 30467 NULL
++adu_write_30487 adu_write 3 30487 NULL
++dtim_interval_write_30489 dtim_interval_write 3 30489 NULL
++batadv_send_tt_request_30493 batadv_send_tt_request 5 30493 NULL
++__send_duplicate_bios_30498 __send_duplicate_bios 4 30498 NULL
++memblock_virt_alloc_node_30515 memblock_virt_alloc_node 1 30515 NULL
++dwc3_testmode_write_30516 dwc3_testmode_write 3 30516 NULL
++set_config_30526 set_config 0 30526 NULL nohasharray
++debug_debug2_read_30526 debug_debug2_read 3 30526 &set_config_30526
++xfs_sb_version_hasftype_30559 xfs_sb_version_hasftype 0 30559 NULL
++disk_expand_part_tbl_30561 disk_expand_part_tbl 2 30561 NULL
++set_le_30581 set_le 4 30581 NULL
++blk_init_tags_30592 blk_init_tags 1 30592 NULL
++sgl_map_user_pages_30610 sgl_map_user_pages 2 30610 NULL
++SyS_msgrcv_30611 SyS_msgrcv 3 30611 NULL
++macvtap_sendmsg_30629 macvtap_sendmsg 4 30629 NULL
++ieee80211_if_read_dot11MeshAwakeWindowDuration_30631 ieee80211_if_read_dot11MeshAwakeWindowDuration 3 30631 NULL
++compat_raw_setsockopt_30634 compat_raw_setsockopt 5 30634 NULL
++mlx5_ib_alloc_fast_reg_page_list_30638 mlx5_ib_alloc_fast_reg_page_list 2 30638 NULL
++SyS_listxattr_30647 SyS_listxattr 3 30647 NULL
++jffs2_flash_read_30667 jffs2_flash_read 0 30667 NULL
++ni_ai_fifo_read_30681 ni_ai_fifo_read 3 30681 NULL
++dccp_setsockopt_ccid_30701 dccp_setsockopt_ccid 4 30701 NULL nohasharray
++xfs_bmap_add_extent_unwritten_real_30701 xfs_bmap_add_extent_unwritten_real 0 30701 &dccp_setsockopt_ccid_30701
++lbs_wrbbp_write_30712 lbs_wrbbp_write 3 30712 NULL
++lbs_debugfs_read_30721 lbs_debugfs_read 3 30721 NULL
++snd_nm256_playback_silence_30727 snd_nm256_playback_silence 4-3 30727 NULL
++snapshot_status_30744 snapshot_status 5 30744 NULL
++fuse_conn_limit_write_30777 fuse_conn_limit_write 3 30777 NULL
++__bio_alloc_30787 __bio_alloc 3 30787 NULL
++smk_read_doi_30813 smk_read_doi 3 30813 NULL
++xlog_grant_head_wait_30829 xlog_grant_head_wait 0 30829 NULL
++get_kobj_path_length_30831 get_kobj_path_length 0 30831 NULL
++ath10k_write_fw_dbglog_30835 ath10k_write_fw_dbglog 3 30835 NULL
++sctp_setsockopt_auth_chunk_30843 sctp_setsockopt_auth_chunk 3 30843 NULL
++wd_autoreset_write_30862 wd_autoreset_write 3 30862 NULL
++ieee80211_if_fmt_dropped_frames_no_route_30884 ieee80211_if_fmt_dropped_frames_no_route 3 30884 NULL
++pn_recvmsg_30887 pn_recvmsg 4 30887 NULL
++usnic_debugfs_buildinfo_read_30928 usnic_debugfs_buildinfo_read 3 30928 NULL
++sctp_setsockopt_rtoinfo_30941 sctp_setsockopt_rtoinfo 3 30941 NULL
++tty_insert_flip_string_flags_30969 tty_insert_flip_string_flags 4 30969 NULL
++huge_page_mask_30981 huge_page_mask 0 30981 NULL
++read_file_bt_ant_diversity_30983 read_file_bt_ant_diversity 3 30983 NULL
++lbs_host_sleep_read_31013 lbs_host_sleep_read 3 31013 NULL
++ima_eventsig_init_31022 ima_eventsig_init 5 31022 NULL
++template_fmt_size_31033 template_fmt_size 0 31033 NULL
++do_setup_msi_irqs_31043 do_setup_msi_irqs 2 31043 NULL
++stride_pg_count_31053 stride_pg_count 0-3-2-1-4-5 31053 NULL
++lbs_failcount_read_31063 lbs_failcount_read 3 31063 NULL
++sctp_setsockopt_context_31091 sctp_setsockopt_context 3 31091 NULL
++proc_gid_map_write_31093 proc_gid_map_write 3 31093 NULL
++compat_sys_get_mempolicy_31109 compat_sys_get_mempolicy 3 31109 NULL
++depth_read_31112 depth_read 3 31112 NULL
++hash_ipportnet6_expire_31118 hash_ipportnet6_expire 4 31118 NULL
++kimage_normal_alloc_31140 kimage_normal_alloc 3 31140 NULL
++size_inside_page_31141 size_inside_page 0 31141 NULL
++w9966_v4l_read_31148 w9966_v4l_read 3 31148 NULL
++ch_do_scsi_31171 ch_do_scsi 4 31171 NULL
++r592_read_fifo_pio_31198 r592_read_fifo_pio 3 31198 NULL
++mtdchar_readoob_31200 mtdchar_readoob 4 31200 NULL
++__btrfs_free_reserved_extent_31207 __btrfs_free_reserved_extent 2 31207 NULL
++cpumask_weight_31215 cpumask_weight 0 31215 NULL
++__read_reg_31216 __read_reg 0 31216 NULL
++atm_get_addr_31221 atm_get_addr 3 31221 NULL
++tcp_recvmsg_31238 tcp_recvmsg 4 31238 NULL
++cyy_readb_31240 cyy_readb 0 31240 NULL
++_create_sg_bios_31244 _create_sg_bios 4 31244 NULL
++ieee80211_if_read_last_beacon_31257 ieee80211_if_read_last_beacon 3 31257 NULL
++hash_netportnet4_expire_31290 hash_netportnet4_expire 4 31290 NULL
++uvc_simplify_fraction_31303 uvc_simplify_fraction 3 31303 NULL
++sisusbcon_scroll_31315 sisusbcon_scroll 5-2-3 31315 NULL
++command_file_write_31318 command_file_write 3 31318 NULL
++hwerr_crcbits_31334 hwerr_crcbits 4 31334 NULL
++radix_tree_insert_31336 radix_tree_insert 0 31336 NULL
++em28xx_init_usb_xfer_31337 em28xx_init_usb_xfer 4-6 31337 NULL
++outlen_write_31358 outlen_write 3 31358 NULL
++ieee80211_rx_mgmt_auth_31366 ieee80211_rx_mgmt_auth 3 31366 NULL
++xprt_rdma_allocate_31372 xprt_rdma_allocate 2 31372 NULL
++vb2_vmalloc_get_userptr_31374 vb2_vmalloc_get_userptr 3-2 31374 NULL
++trace_parser_get_init_31379 trace_parser_get_init 2 31379 NULL
++inb_31388 inb 0 31388 NULL
++key_ifindex_read_31411 key_ifindex_read 3 31411 NULL
++_sp2d_max_pg_31422 _sp2d_max_pg 0 31422 NULL
++TSS_checkhmac1_31429 TSS_checkhmac1 5 31429 NULL
++snd_aw2_saa7146_get_hw_ptr_capture_31431 snd_aw2_saa7146_get_hw_ptr_capture 0 31431 NULL
++transport_alloc_session_tags_31449 transport_alloc_session_tags 2-3 31449 NULL
++opera1_xilinx_rw_31453 opera1_xilinx_rw 5 31453 NULL
++xfs_btree_get_numrecs_31477 xfs_btree_get_numrecs 0 31477 NULL
++alg_setkey_31485 alg_setkey 3 31485 NULL
++rds_message_map_pages_31487 rds_message_map_pages 2 31487 NULL
++qsfp_2_read_31491 qsfp_2_read 3 31491 NULL
++__alloc_bootmem_31498 __alloc_bootmem 1 31498 NULL
++hidraw_write_31536 hidraw_write 3 31536 NULL
++usbvision_read_31555 usbvision_read 3 31555 NULL
++tx_frag_tkip_called_read_31575 tx_frag_tkip_called_read 3 31575 NULL
++get_max_inline_xattr_value_size_31578 get_max_inline_xattr_value_size 0 31578 NULL
++osst_write_31581 osst_write 3 31581 NULL
++snd_compr_get_avail_31584 snd_compr_get_avail 0 31584 NULL
++iwl_dbgfs_ucode_tx_stats_read_31611 iwl_dbgfs_ucode_tx_stats_read 3 31611 NULL
++mtd_get_user_prot_info_31616 mtd_get_user_prot_info 0 31616 NULL
++arvo_sysfs_read_31617 arvo_sysfs_read 6 31617 NULL nohasharray
++memblock_virt_alloc_nopanic_31617 memblock_virt_alloc_nopanic 1 31617 &arvo_sysfs_read_31617
++usnic_ib_dump_vf_31623 usnic_ib_dump_vf 3 31623 NULL
++videobuf_read_one_31637 videobuf_read_one 3 31637 NULL
++pod_alloc_sysex_buffer_31651 pod_alloc_sysex_buffer 3 31651 NULL
++xfer_secondary_pool_31661 xfer_secondary_pool 2 31661 NULL
++__lgread_31668 __lgread 4 31668 NULL
++copy_from_user_nmi_31672 copy_from_user_nmi 3-0 31672 NULL
++forced_ps_read_31685 forced_ps_read 3 31685 NULL
++fst_recover_rx_error_31687 fst_recover_rx_error 3 31687 NULL
++gfs2_dir_check_31711 gfs2_dir_check 0 31711 NULL
++rs_pretty_print_rate_31727 rs_pretty_print_rate 0 31727 NULL
++utf16s_to_utf8s_31735 utf16s_to_utf8s 0 31735 NULL nohasharray
++lu_buf_check_and_grow_31735 lu_buf_check_and_grow 2 31735 &utf16s_to_utf8s_31735
++shmem_pwrite_slow_31741 shmem_pwrite_slow 3-2 31741 NULL
++input_abs_get_max_31742 input_abs_get_max 0 31742 NULL nohasharray
++NCR_700_change_queue_depth_31742 NCR_700_change_queue_depth 2 31742 &input_abs_get_max_31742
++bcm_char_read_31750 bcm_char_read 3 31750 NULL
++snd_seq_device_new_31753 snd_seq_device_new 4 31753 NULL
++SyS_lsetxattr_31766 SyS_lsetxattr 4 31766 NULL
++osync_buffers_list_31789 osync_buffers_list 0 31789 NULL
++usblp_cache_device_id_string_31790 usblp_cache_device_id_string 0 31790 NULL
++ecryptfs_send_message_locked_31801 ecryptfs_send_message_locked 2 31801 NULL
++isr_rx_procs_read_31804 isr_rx_procs_read 3 31804 NULL
++data_write_31805 data_write 3 31805 NULL
++SyS_msgsnd_31814 SyS_msgsnd 3 31814 NULL
++strnlen_user_31815 strnlen_user 0-2 31815 NULL
++sta_last_signal_read_31818 sta_last_signal_read 3 31818 NULL
++clone_bio_31854 clone_bio 4-3 31854 NULL
++SyS_ppoll_31855 SyS_ppoll 2 31855 NULL
++foreach_descriptor_31873 foreach_descriptor 0 31873 NULL
++iwl_dbgfs_disable_ht40_write_31876 iwl_dbgfs_disable_ht40_write 3 31876 NULL
++drm_mode_crtc_set_gamma_size_31881 drm_mode_crtc_set_gamma_size 2 31881 NULL
++ddb_output_write_31902 ddb_output_write 3-0 31902 NULL
++xattr_permission_31907 xattr_permission 0 31907 NULL
++lu_buf_realloc_31915 lu_buf_realloc 2 31915 NULL
++new_dir_31919 new_dir 3 31919 NULL
++kmem_alloc_31920 kmem_alloc 1 31920 NULL
++SYSC_sethostname_31940 SYSC_sethostname 2 31940 NULL
++read_mem_31942 read_mem 3 31942 NULL nohasharray
++iov_iter_copy_from_user_31942 iov_iter_copy_from_user 4-0 31942 &read_mem_31942
++vb2_write_31948 vb2_write 3 31948 NULL
++pvr2_ctrl_get_valname_31951 pvr2_ctrl_get_valname 4 31951 NULL
++regcache_rbtree_sync_31964 regcache_rbtree_sync 2 31964 NULL
++iwl_rx_packet_payload_len_31965 iwl_rx_packet_payload_len 0 31965 NULL
++copy_from_user_toio_31966 copy_from_user_toio 3 31966 NULL
++iblock_execute_rw_31982 iblock_execute_rw 3 31982 NULL nohasharray
++vx_read_status_31982 vx_read_status 0 31982 &iblock_execute_rw_31982
++find_next_zero_bit_31990 find_next_zero_bit 0 31990 NULL
++lustre_acl_xattr_merge2posix_31992 lustre_acl_xattr_merge2posix 2 31992 NULL
++sysfs_create_file_31996 sysfs_create_file 0 31996 NULL
++calc_hmac_32010 calc_hmac 3 32010 NULL
++aead_len_32021 aead_len 0 32021 NULL
++stk_read_32038 stk_read 3 32038 NULL
++SYSC_llistxattr_32061 SYSC_llistxattr 3 32061 NULL
++proc_scsi_devinfo_write_32064 proc_scsi_devinfo_write 3 32064 NULL
++xfs_buf_iowait_32068 xfs_buf_iowait 0 32068 NULL
++cow_file_range_inline_32091 cow_file_range_inline 3 32091 NULL
++bio_alloc_32095 bio_alloc 2 32095 NULL
++ath6kl_fwlog_read_32101 ath6kl_fwlog_read 3 32101 NULL
++disk_status_32120 disk_status 4 32120 NULL
++kobject_add_internal_32133 kobject_add_internal 0 32133 NULL
++venus_link_32165 venus_link 5 32165 NULL
++do_writepages_32173 do_writepages 0 32173 NULL
++del_ptr_32197 del_ptr 4 32197 NULL
++wusb_ccm_mac_32199 wusb_ccm_mac 7 32199 NULL
++__mem_cgroup_try_charge_swapin_32204 __mem_cgroup_try_charge_swapin 0 32204 NULL
++riva_get_cmap_len_32218 riva_get_cmap_len 0 32218 NULL
++caif_seqpkt_recvmsg_32241 caif_seqpkt_recvmsg 4 32241 NULL
++lbs_lowrssi_read_32242 lbs_lowrssi_read 3 32242 NULL
++ocfs2_xattr_find_entry_32260 ocfs2_xattr_find_entry 0 32260 NULL
++kvm_set_spte_hva_32312 kvm_set_spte_hva 2 32312 NULL
++cas_calc_tabort_32316 cas_calc_tabort 0 32316 NULL
++SyS_select_32319 SyS_select 1 32319 NULL
++nouveau_bar_create__32332 nouveau_bar_create_ 4 32332 NULL
++nl80211_send_mlme_event_32337 nl80211_send_mlme_event 4 32337 NULL
++xfs_bmap_extsize_align_32338 xfs_bmap_extsize_align 0 32338 NULL
++t4_alloc_mem_32342 t4_alloc_mem 1 32342 NULL
++dispatch_ioctl_32357 dispatch_ioctl 2 32357 NULL nohasharray
++rx_streaming_always_write_32357 rx_streaming_always_write 3 32357 &dispatch_ioctl_32357
++ReadHDLCPCI_32362 ReadHDLCPCI 0 32362 NULL nohasharray
++sel_read_initcon_32362 sel_read_initcon 3 32362 &ReadHDLCPCI_32362
++ocfs2_cancel_convert_32392 ocfs2_cancel_convert 0 32392 NULL
++ll_setxattr_common_32398 ll_setxattr_common 4 32398 NULL
++xfs_iext_add_indirect_multi_32400 xfs_iext_add_indirect_multi 3 32400 NULL
++vmci_qp_alloc_32405 vmci_qp_alloc 5-3 32405 NULL
++xfs_alloc_put_freelist_32437 xfs_alloc_put_freelist 0 32437 NULL
++cache_status_32462 cache_status 5 32462 NULL
++fill_readbuf_32464 fill_readbuf 3 32464 NULL
++dgap_usertoboard_32490 dgap_usertoboard 4 32490 NULL
++ide_driver_proc_write_32493 ide_driver_proc_write 3 32493 NULL
++bypass_pwoff_write_32499 bypass_pwoff_write 3 32499 NULL
++mdc_pinger_recov_seq_write_32510 mdc_pinger_recov_seq_write 3 32510 NULL
++ctrl_std_val_to_sym_32516 ctrl_std_val_to_sym 5 32516 NULL
++disconnect_32521 disconnect 4 32521 NULL
++qsfp_read_32522 qsfp_read 0-2-4 32522 NULL
++ocfs2_refresh_qinfo_32524 ocfs2_refresh_qinfo 0 32524 NULL
++ilo_read_32531 ilo_read 3 32531 NULL
++ieee80211_if_read_estab_plinks_32533 ieee80211_if_read_estab_plinks 3 32533 NULL
++format_devstat_counter_32550 format_devstat_counter 3 32550 NULL
++aes_encrypt_fail_read_32562 aes_encrypt_fail_read 3 32562 NULL
++osc_iocontrol_32565 osc_iocontrol 3 32565 NULL
++mem_swapout_entry_32586 mem_swapout_entry 3 32586 NULL
++pipeline_tcp_tx_stat_fifo_int_read_32589 pipeline_tcp_tx_stat_fifo_int_read 3 32589 NULL
++read_file_beacon_32595 read_file_beacon 3 32595 NULL
++ieee80211_if_read_dropped_frames_congestion_32603 ieee80211_if_read_dropped_frames_congestion 3 32603 NULL
++xfs_bmap_last_offset_32614 xfs_bmap_last_offset 0 32614 NULL
++irda_recvmsg_dgram_32631 irda_recvmsg_dgram 4 32631 NULL
++cfg80211_roamed_32632 cfg80211_roamed 5-7 32632 NULL
++kvmalloc_32646 kvmalloc 1 32646 NULL
++ib_sg_dma_len_32649 ib_sg_dma_len 0 32649 NULL
++generic_readlink_32654 generic_readlink 3 32654 NULL
++move_addr_to_kernel_32673 move_addr_to_kernel 2 32673 NULL
++apei_res_add_32674 apei_res_add 0 32674 NULL
++compat_SyS_preadv_32679 compat_SyS_preadv 3 32679 NULL
++jfs_readpages_32702 jfs_readpages 4 32702 NULL
++xfs_filestream_new_ag_32711 xfs_filestream_new_ag 0 32711 NULL
++rt2x00debug_read_queue_dump_32712 rt2x00debug_read_queue_dump 3 32712 NULL
++xfs_bmbt_update_32713 xfs_bmbt_update 0 32713 NULL
++i40e_pci_sriov_enable_32742 i40e_pci_sriov_enable 2 32742 NULL
++megasas_change_queue_depth_32747 megasas_change_queue_depth 2 32747 NULL
++stats_read_ul_32751 stats_read_ul 3 32751 NULL
++vmci_transport_dgram_dequeue_32775 vmci_transport_dgram_dequeue 4 32775 NULL
++sctp_tsnmap_grow_32784 sctp_tsnmap_grow 2 32784 NULL
++xfs_trans_read_buf_32795 xfs_trans_read_buf 0 32795 NULL
++rproc_name_read_32805 rproc_name_read 3 32805 NULL
++sta_tx_latency_stat_read_32862 sta_tx_latency_stat_read 3 32862 NULL
++new_tape_buffer_32866 new_tape_buffer 2 32866 NULL
++cifs_writedata_alloc_32880 cifs_writedata_alloc 1 32880 NULL nohasharray
++ath6kl_usb_submit_ctrl_in_32880 ath6kl_usb_submit_ctrl_in 6 32880 &cifs_writedata_alloc_32880
++vp702x_usb_inout_cmd_32884 vp702x_usb_inout_cmd 4-6 32884 NULL
++il_dbgfs_tx_stats_read_32913 il_dbgfs_tx_stats_read 3 32913 NULL
++zlib_inflate_workspacesize_32927 zlib_inflate_workspacesize 0 32927 NULL
++rmap_recycle_32938 rmap_recycle 3 32938 NULL
++xfs_log_reserve_32959 xfs_log_reserve 0 32959 NULL
++compat_filldir_32999 compat_filldir 3 32999 NULL
++SyS_syslog_33007 SyS_syslog 3 33007 NULL
++br_multicast_set_hash_max_33012 br_multicast_set_hash_max 2 33012 NULL
++write_file_bt_ant_diversity_33019 write_file_bt_ant_diversity 3 33019 NULL
++mic_virtio_copy_to_user_33048 mic_virtio_copy_to_user 3 33048 NULL
++SYSC_lgetxattr_33049 SYSC_lgetxattr 4 33049 NULL
++pipeline_dec_packet_in_fifo_full_read_33052 pipeline_dec_packet_in_fifo_full_read 3 33052 NULL
++ebt_compat_match_offset_33053 ebt_compat_match_offset 0-2 33053 NULL
++bitmap_resize_33054 bitmap_resize 2 33054 NULL
++stats_dot11RTSSuccessCount_read_33065 stats_dot11RTSSuccessCount_read 3 33065 NULL
++sel_read_checkreqprot_33068 sel_read_checkreqprot 3 33068 NULL
++alloc_tio_33077 alloc_tio 3 33077 NULL
++acl_permission_check_33083 acl_permission_check 0 33083 NULL
++fb_sys_write_33130 fb_sys_write 3 33130 NULL
++notify_change_33143 notify_change 0 33143 NULL
++SyS_poll_33152 SyS_poll 2 33152 NULL
++_pci_add_cap_save_buffer_33153 _pci_add_cap_save_buffer 4 33153 NULL
++debug_debug6_read_33168 debug_debug6_read 3 33168 NULL
++dataflash_read_fact_otp_33204 dataflash_read_fact_otp 3-2 33204 NULL
++pp_read_33210 pp_read 3 33210 NULL
++xfs_file_aio_write_33234 xfs_file_aio_write 4 33234 NULL
++snd_pcm_plug_client_size_33267 snd_pcm_plug_client_size 0-2 33267 NULL
++cachefiles_cook_key_33274 cachefiles_cook_key 2 33274 NULL
++sync_pt_create_33282 sync_pt_create 2 33282 NULL
++mcs7830_get_reg_33308 mcs7830_get_reg 3 33308 NULL
++isku_sysfs_read_keys_easyzone_33318 isku_sysfs_read_keys_easyzone 6 33318 NULL
++vx_send_irq_dsp_33329 vx_send_irq_dsp 0 33329 NULL
++joydev_ioctl_33343 joydev_ioctl 2 33343 NULL
++lov_stripesize_seq_write_33353 lov_stripesize_seq_write 3 33353 NULL
++create_xattr_datum_33356 create_xattr_datum 5 33356 NULL nohasharray
++irq_pkt_threshold_read_33356 irq_pkt_threshold_read 3 33356 &create_xattr_datum_33356
++read_file_regidx_33370 read_file_regidx 3 33370 NULL
++ieee80211_if_read_dropped_frames_no_route_33383 ieee80211_if_read_dropped_frames_no_route 3 33383 NULL
++scsi_varlen_cdb_length_33385 scsi_varlen_cdb_length 0 33385 NULL
++ocfs2_allocate_unwritten_extents_33394 ocfs2_allocate_unwritten_extents 3-2 33394 NULL
++cfs_trace_copyin_string_33396 cfs_trace_copyin_string 4 33396 NULL
++snd_pcm_capture_ioctl1_33408 snd_pcm_capture_ioctl1 0 33408 NULL
++filemap_fdatawrite_33415 filemap_fdatawrite 0 33415 NULL
++hash_netiface6_expire_33421 hash_netiface6_expire 4 33421 NULL
++dis_tap_write_33426 dis_tap_write 3 33426 NULL
++message_stats_list_33440 message_stats_list 5 33440 NULL
++ovs_vport_alloc_33475 ovs_vport_alloc 1 33475 NULL
++create_entry_33479 create_entry 2 33479 NULL
++ip_setsockopt_33487 ip_setsockopt 5 33487 NULL
++res_counter_read_33499 res_counter_read 4 33499 NULL
++hash_netnet4_expire_33500 hash_netnet4_expire 4 33500 NULL
++fb_read_33506 fb_read 3 33506 NULL
++musb_test_mode_write_33518 musb_test_mode_write 3 33518 NULL
++ahash_setkey_unaligned_33521 ahash_setkey_unaligned 3 33521 NULL
++nes_alloc_fast_reg_page_list_33523 nes_alloc_fast_reg_page_list 2 33523 NULL
++aggr_size_rx_size_read_33526 aggr_size_rx_size_read 3 33526 NULL
++tomoyo_read_self_33539 tomoyo_read_self 3 33539 NULL nohasharray
++osc_max_rpcs_in_flight_seq_write_33539 osc_max_rpcs_in_flight_seq_write 3 33539 &tomoyo_read_self_33539
++count_subheaders_33591 count_subheaders 0 33591 NULL
++scsi_execute_33596 scsi_execute 5 33596 NULL
++comedi_buf_write_n_allocated_33604 comedi_buf_write_n_allocated 0 33604 NULL
++xt_compat_target_offset_33608 xt_compat_target_offset 0 33608 NULL
++usb_gstrings_attach_33615 usb_gstrings_attach 3 33615 NULL nohasharray
++il_dbgfs_qos_read_33615 il_dbgfs_qos_read 3 33615 &usb_gstrings_attach_33615
++xfs_btree_check_sblock_33618 xfs_btree_check_sblock 0 33618 NULL
++stride_page_count_33641 stride_page_count 2 33641 NULL
++irq_blk_threshold_read_33666 irq_blk_threshold_read 3 33666 NULL
++inw_p_33668 inw_p 0 33668 NULL
++arp_hdr_len_33671 arp_hdr_len 0 33671 NULL
++i2c_hid_alloc_buffers_33673 i2c_hid_alloc_buffers 2 33673 NULL
++submit_one_bio_33683 submit_one_bio 0 33683 NULL
++nv50_disp_dmac_create__33696 nv50_disp_dmac_create_ 6 33696 NULL
++netlink_sendmsg_33708 netlink_sendmsg 4 33708 NULL
++tipc_link_stats_33716 tipc_link_stats 3 33716 NULL
++ext4_wb_update_i_disksize_33717 ext4_wb_update_i_disksize 2 33717 NULL
++pvr2_stream_buffer_count_33719 pvr2_stream_buffer_count 2 33719 NULL
++write_file_spectral_count_33723 write_file_spectral_count 3 33723 NULL
++read_file_node_recv_33729 read_file_node_recv 3 33729 NULL
++__mutex_lock_interruptible_slowpath_33735 __mutex_lock_interruptible_slowpath 0 33735 NULL
++vifs_state_read_33762 vifs_state_read 3 33762 NULL
++hashtab_create_33769 hashtab_create 3 33769 NULL
++if_sdio_read_rx_len_33800 if_sdio_read_rx_len 0 33800 NULL
++filter_write_33819 filter_write 3 33819 NULL
++sep_create_msgarea_context_33829 sep_create_msgarea_context 4 33829 NULL
++scrub_setup_recheck_block_33831 scrub_setup_recheck_block 5-4 33831 NULL
++ext4_journal_extend_33835 ext4_journal_extend 2 33835 NULL
++oz_cdev_write_33852 oz_cdev_write 3 33852 NULL
++get_user_pages_33908 get_user_pages 0 33908 NULL
++sg_nents_33909 sg_nents 0 33909 NULL
++ath6kl_roam_mode_write_33912 ath6kl_roam_mode_write 3 33912 NULL
++queue_logical_block_size_33918 queue_logical_block_size 0 33918 NULL
++sel_read_avc_cache_threshold_33942 sel_read_avc_cache_threshold 3 33942 NULL
++lpfc_idiag_ctlacc_read_33943 lpfc_idiag_ctlacc_read 3 33943 NULL
++read_file_tgt_rx_stats_33944 read_file_tgt_rx_stats 3 33944 NULL
++__proc_dump_kernel_33954 __proc_dump_kernel 5 33954 NULL
++btrfs_delalloc_reserve_metadata_33963 btrfs_delalloc_reserve_metadata 0 33963 NULL
++vga_switcheroo_debugfs_write_33984 vga_switcheroo_debugfs_write 3 33984 NULL
++lbs_lowrssi_write_34025 lbs_lowrssi_write 3 34025 NULL
++ppp_write_34034 ppp_write 3 34034 NULL
++tty_insert_flip_string_34042 tty_insert_flip_string 3-0 34042 NULL
++memcg_update_all_caches_34068 memcg_update_all_caches 1 34068 NULL
++xfs_dialloc_34078 xfs_dialloc 0 34078 NULL
++pipeline_pipeline_fifo_full_read_34095 pipeline_pipeline_fifo_full_read 3 34095 NULL
++__irq_domain_add_34101 __irq_domain_add 2 34101 NULL
++proc_scsi_host_write_34107 proc_scsi_host_write 3 34107 NULL
++islpci_mgt_transmit_34133 islpci_mgt_transmit 5 34133 NULL
++ttm_dma_page_pool_free_34135 ttm_dma_page_pool_free 2-0 34135 NULL
++ixgbe_dbg_netdev_ops_write_34141 ixgbe_dbg_netdev_ops_write 3 34141 NULL
++shmem_pread_fast_34147 shmem_pread_fast 3 34147 NULL
++ocfs2_xattr_list_entry_34165 ocfs2_xattr_list_entry 0 34165 NULL
++skb_to_sgvec_34171 skb_to_sgvec 0 34171 NULL
++xfs_bmapi_write_34208 xfs_bmapi_write 0 34208 NULL
++ext4_da_write_begin_34215 ext4_da_write_begin 3-4 34215 NULL
++bl_pipe_downcall_34264 bl_pipe_downcall 3 34264 NULL
++ocfs2_dlm_lock_34265 ocfs2_dlm_lock 0 34265 NULL
++device_private_init_34279 device_private_init 0 34279 NULL
++ext4_get_groups_count_34324 ext4_get_groups_count 0 34324 NULL
++pcpu_need_to_extend_34326 pcpu_need_to_extend 0 34326 NULL nohasharray
++iov_iter_single_seg_count_34326 iov_iter_single_seg_count 0 34326 &pcpu_need_to_extend_34326
++crypto_ablkcipher_ivsize_34363 crypto_ablkcipher_ivsize 0 34363 NULL nohasharray
++sync_page_io_34363 sync_page_io 3 34363 &crypto_ablkcipher_ivsize_34363
++rngapi_reset_34366 rngapi_reset 3 34366 NULL
++ea_read_34378 ea_read 0 34378 NULL
++fuse_send_read_34379 fuse_send_read 4 34379 NULL
++av7110_vbi_write_34384 av7110_vbi_write 3 34384 NULL
++usbvision_v4l2_read_34386 usbvision_v4l2_read 3 34386 NULL
++read_rbu_image_type_34387 read_rbu_image_type 6 34387 NULL
++iwl_calib_set_34400 iwl_calib_set 3 34400 NULL nohasharray
++ivtv_read_pos_34400 ivtv_read_pos 3 34400 &iwl_calib_set_34400
++wd_exp_mode_write_34407 wd_exp_mode_write 3 34407 NULL
++nl80211_send_disassoc_34424 nl80211_send_disassoc 4 34424 NULL
++__extent_read_full_page_34437 __extent_read_full_page 0 34437 NULL
++usbtest_alloc_urb_34446 usbtest_alloc_urb 3-5 34446 NULL
++mwifiex_regrdwr_read_34472 mwifiex_regrdwr_read 3 34472 NULL
++skcipher_sndbuf_34476 skcipher_sndbuf 0 34476 NULL
++i2o_parm_field_get_34477 i2o_parm_field_get 5 34477 NULL
++security_inode_permission_34488 security_inode_permission 0 34488 NULL
++SyS_pwritev_34494 SyS_pwritev 3 34494 NULL
++qp_alloc_res_34496 qp_alloc_res 5 34496 NULL
++lu_buf_check_and_alloc_34505 lu_buf_check_and_alloc 2 34505 NULL
++ext4_fallocate_34537 ext4_fallocate 4-3 34537 NULL nohasharray
++tracing_stats_read_34537 tracing_stats_read 3 34537 &ext4_fallocate_34537
++hugetlbfs_read_actor_34547 hugetlbfs_read_actor 2-5-4-0 34547 NULL
++dbBackSplit_34561 dbBackSplit 0 34561 NULL
++alloc_ieee80211_rsl_34564 alloc_ieee80211_rsl 1 34564 NULL
++lov_stripecount_seq_write_34582 lov_stripecount_seq_write 3 34582 NULL
++init_send_hfcd_34586 init_send_hfcd 1 34586 NULL
++inet6_ifla6_size_34591 inet6_ifla6_size 0 34591 NULL
++ceph_msgpool_init_34599 ceph_msgpool_init 4 34599 NULL nohasharray
++cw1200_queue_init_34599 cw1200_queue_init 4 34599 &ceph_msgpool_init_34599
++bio_integrity_bytes_34602 bio_integrity_bytes 2 34602 NULL
++__jffs2_ref_totlen_34609 __jffs2_ref_totlen 0 34609 NULL
++apei_get_nvs_resources_34616 apei_get_nvs_resources 0 34616 NULL
++__cfg80211_disconnected_34622 __cfg80211_disconnected 3 34622 NULL
++cnic_alloc_dma_34641 cnic_alloc_dma 3 34641 NULL
++kvm_set_spte_hva_34671 kvm_set_spte_hva 2 34671 NULL
++sleep_auth_write_34676 sleep_auth_write 3 34676 NULL
++isr_fiqs_read_34687 isr_fiqs_read 3 34687 NULL
++batadv_tvlv_realloc_packet_buff_34688 batadv_tvlv_realloc_packet_buff 3-4 34688 NULL
++port_print_34704 port_print 3 34704 NULL
++ieee80211_if_read_num_sta_ps_34722 ieee80211_if_read_num_sta_ps 3 34722 NULL
++platform_list_read_file_34734 platform_list_read_file 3 34734 NULL
++reg_w_ixbuf_34736 reg_w_ixbuf 4 34736 NULL
++lsm_alloc_plain_34755 lsm_alloc_plain 1 34755 NULL
++bootmode_store_34762 bootmode_store 4 34762 NULL
++device_add_34766 device_add 0 34766 NULL
++xfs_iget_cache_hit_34767 xfs_iget_cache_hit 0 34767 NULL
++qib_cdev_init_34778 qib_cdev_init 1 34778 NULL
++SYSC_keyctl_34800 SYSC_keyctl 4 34800 NULL
++can_nocow_extent_34801 can_nocow_extent 2 34801 NULL
++drbd_get_max_capacity_34804 drbd_get_max_capacity 0 34804 NULL
++ll_setxattr_34806 ll_setxattr 4 34806 NULL
++file_page_index_34820 file_page_index 0-2 34820 NULL
++bio_segments_34832 bio_segments 0 34832 NULL
++b43_debugfs_write_34838 b43_debugfs_write 3 34838 NULL
++nl_portid_hash_zalloc_34843 nl_portid_hash_zalloc 1 34843 NULL
++acpi_system_write_wakeup_device_34853 acpi_system_write_wakeup_device 3 34853 NULL
++usb_serial_generic_prepare_write_buffer_34857 usb_serial_generic_prepare_write_buffer 3 34857 NULL
++ieee80211_if_read_txpower_34871 ieee80211_if_read_txpower 3 34871 NULL
++msg_print_text_34889 msg_print_text 0 34889 NULL
++ieee80211_if_write_34894 ieee80211_if_write 3 34894 NULL
++gfs2_glock_wait_34913 gfs2_glock_wait 0 34913 NULL
++si476x_radio_read_rsq_primary_blob_34916 si476x_radio_read_rsq_primary_blob 3 34916 NULL
++btrfs_super_chunk_root_34925 btrfs_super_chunk_root 0 34925 NULL nohasharray
++__inode_permission_34925 __inode_permission 0 34925 &btrfs_super_chunk_root_34925
++ceph_aio_write_34930 ceph_aio_write 4 34930 NULL
++sec_flags2str_34933 sec_flags2str 3 34933 NULL
++snd_info_entry_read_34938 snd_info_entry_read 3 34938 NULL
++i2c_transfer_34958 i2c_transfer 0 34958 NULL
++do_add_page_to_bio_34974 do_add_page_to_bio 2-10 34974 NULL
++print_message_35000 print_message 0 35000 NULL
++rx_rx_hdr_overflow_read_35002 rx_rx_hdr_overflow_read 3 35002 NULL
++l2cap_skbuff_fromiovec_35003 l2cap_skbuff_fromiovec 4-3 35003 NULL
++sisusb_copy_memory_35016 sisusb_copy_memory 4 35016 NULL
++coda_psdev_read_35029 coda_psdev_read 3 35029 NULL
++proc_setgroups_write_35039 proc_setgroups_write 3 35039 NULL
++xfs_rtallocate_extent_35052 xfs_rtallocate_extent 0 35052 NULL
++pwr_connection_out_of_sync_read_35061 pwr_connection_out_of_sync_read 3 35061 NULL
++ntfs_attr_extend_initialized_35084 ntfs_attr_extend_initialized 0 35084 NULL
++__kfifo_uint_must_check_helper_35097 __kfifo_uint_must_check_helper 0-1 35097 NULL
++capi_write_35104 capi_write 3 35104 NULL nohasharray
++tx_tx_done_template_read_35104 tx_tx_done_template_read 3 35104 &capi_write_35104
++ide_settings_proc_write_35110 ide_settings_proc_write 3 35110 NULL
++ceph_osdc_start_request_35122 ceph_osdc_start_request 0 35122 NULL
++message_stats_print_35158 message_stats_print 6 35158 NULL
++iscsi_conn_setup_35159 iscsi_conn_setup 2 35159 NULL
++ieee80211_if_read_bssid_35161 ieee80211_if_read_bssid 3 35161 NULL
++unix_stream_recvmsg_35210 unix_stream_recvmsg 4 35210 NULL
++striped_read_35218 striped_read 0-2 35218 NULL nohasharray
++security_key_getsecurity_35218 security_key_getsecurity 0 35218 &striped_read_35218
++rx_rx_cmplt_task_read_35226 rx_rx_cmplt_task_read 3 35226 NULL
++set_fd_set_35249 set_fd_set 1 35249 NULL
++ioapic_setup_resources_35255 ioapic_setup_resources 1 35255 NULL
++jbd2_journal_get_write_access_35263 jbd2_journal_get_write_access 0 35263 NULL
++dis_disc_write_35265 dis_disc_write 3 35265 NULL
++dma_show_regs_35266 dma_show_regs 3 35266 NULL
++irda_recvmsg_stream_35280 irda_recvmsg_stream 4 35280 NULL
++i2o_block_end_request_35282 i2o_block_end_request 3 35282 NULL
++isr_rx_rdys_read_35283 isr_rx_rdys_read 3 35283 NULL
++__btrfs_buffered_write_35311 __btrfs_buffered_write 3-0 35311 NULL nohasharray
++brcmf_sdio_forensic_read_35311 brcmf_sdio_forensic_read 3 35311 &__btrfs_buffered_write_35311
++tracing_read_pipe_35312 tracing_read_pipe 3 35312 NULL
++sta_tx_latency_stat_write_35323 sta_tx_latency_stat_write 3 35323 NULL
++xfs_btree_check_lblock_35333 xfs_btree_check_lblock 0 35333 NULL
++ieee80211_if_fmt_ap_power_level_35347 ieee80211_if_fmt_ap_power_level 3 35347 NULL
++nouveau_devinit_create__35348 nouveau_devinit_create_ 4 35348 NULL
++ieee80211_rx_mgmt_deauth_35351 ieee80211_rx_mgmt_deauth 3 35351 NULL
++compat_filldir64_35354 compat_filldir64 3 35354 NULL
++read_kmem_35372 read_kmem 3 35372 NULL
++SyS_getxattr_35408 SyS_getxattr 4 35408 NULL
++rawv6_send_hdrinc_35425 rawv6_send_hdrinc 3 35425 NULL
++buffer_to_user_35439 buffer_to_user 3 35439 NULL
++efx_mcdi_rpc_async_quiet_35460 efx_mcdi_rpc_async_quiet 4-5 35460 NULL
++macvtap_do_read_35475 macvtap_do_read 3 35475 NULL
++fiemap_prepare_and_copy_exts_35494 fiemap_prepare_and_copy_exts 5 35494 NULL
++btrfs_prealloc_file_range_trans_35500 btrfs_prealloc_file_range_trans 4 35500 NULL
++async_setkey_35521 async_setkey 3 35521 NULL
++__filemap_fdatawrite_range_35528 __filemap_fdatawrite_range 0 35528 NULL
++iwl_dbgfs_bt_traffic_read_35534 iwl_dbgfs_bt_traffic_read 3 35534 NULL
++pstore_mkfile_35536 pstore_mkfile 7 35536 NULL
++rxpipe_tx_xfr_host_int_trig_rx_data_read_35538 rxpipe_tx_xfr_host_int_trig_rx_data_read 3 35538 NULL
++ocfs2_write_zero_page_35539 ocfs2_write_zero_page 3 35539 NULL
++ibnl_put_attr_35541 ibnl_put_attr 3 35541 NULL
++ieee80211_if_write_smps_35550 ieee80211_if_write_smps 3 35550 NULL
++ext4_blocks_for_truncate_35579 ext4_blocks_for_truncate 0 35579 NULL
++ext2_acl_from_disk_35580 ext2_acl_from_disk 2 35580 NULL
++spk_msg_set_35586 spk_msg_set 3 35586 NULL
++kernel_readv_35617 kernel_readv 3 35617 NULL
++reiserfs_readpages_35629 reiserfs_readpages 4 35629 NULL
++pci_request_regions_35635 pci_request_regions 0 35635 NULL
++ptlrpcd_steal_rqset_35637 ptlrpcd_steal_rqset 0 35637 NULL
++spi_register_board_info_35651 spi_register_board_info 2 35651 NULL
++rdmaltWithLock_35669 rdmaltWithLock 0 35669 NULL
++compat_sys_kexec_load_35674 compat_sys_kexec_load 2 35674 NULL
++SYSC_pwritev_35690 SYSC_pwritev 3 35690 NULL
++rds_page_copy_user_35691 rds_page_copy_user 4 35691 NULL
++md_super_write_35703 md_super_write 4 35703 NULL
++iwl_dbgfs_disable_ht40_read_35761 iwl_dbgfs_disable_ht40_read 3 35761 NULL
++udf_alloc_i_data_35786 udf_alloc_i_data 2 35786 NULL
++pvr2_hdw_cpufw_get_35824 pvr2_hdw_cpufw_get 0-4-2 35824 NULL
++tx_tx_cmplt_read_35854 tx_tx_cmplt_read 3 35854 NULL
++vx_query_hbuffer_size_35859 vx_query_hbuffer_size 0 35859 NULL
++mthca_buf_alloc_35861 mthca_buf_alloc 2 35861 NULL
++fls64_35862 fls64 0 35862 NULL
++kvm_dirty_bitmap_bytes_35886 kvm_dirty_bitmap_bytes 0 35886 NULL
++ieee80211_if_fmt_dot11MeshRetryTimeout_35890 ieee80211_if_fmt_dot11MeshRetryTimeout 3 35890 NULL
++uwb_rc_cmd_done_35892 uwb_rc_cmd_done 4 35892 NULL
++SyS_set_mempolicy_35909 SyS_set_mempolicy 3 35909 NULL
++kernel_setsockopt_35913 kernel_setsockopt 5 35913 NULL
++rbio_nr_pages_35916 rbio_nr_pages 0-1-2 35916 NULL
++sctp_tsnmap_mark_35929 sctp_tsnmap_mark 2 35929 NULL
++rx_defrag_init_called_read_35935 rx_defrag_init_called_read 3 35935 NULL
++put_cmsg_compat_35937 put_cmsg_compat 4 35937 NULL
++ext_rts51x_sd_execute_write_data_35971 ext_rts51x_sd_execute_write_data 9-11 35971 NULL
++ceph_buffer_new_35974 ceph_buffer_new 1 35974 NULL nohasharray
++generic_ocp_read_35974 generic_ocp_read 3 35974 &ceph_buffer_new_35974
++acl_alloc_35979 acl_alloc 1 35979 NULL
++device_add_class_symlinks_35985 device_add_class_symlinks 0 35985 NULL
++write_file_antenna_35998 write_file_antenna 3 35998 NULL nohasharray
++kuc_alloc_35998 kuc_alloc 1 35998 &write_file_antenna_35998
++il3945_ucode_tx_stats_read_36016 il3945_ucode_tx_stats_read 3 36016 NULL
++__videobuf_alloc_36031 __videobuf_alloc 1 36031 NULL
++account_shadowed_36048 account_shadowed 2 36048 NULL
++gpio_power_read_36059 gpio_power_read 3 36059 NULL
++write_emulate_36065 write_emulate 2-4 36065 NULL
++stack_max_size_write_36068 stack_max_size_write 3 36068 NULL
++radeon_vm_num_pdes_36070 radeon_vm_num_pdes 0 36070 NULL
++ieee80211_if_fmt_peer_36071 ieee80211_if_fmt_peer 3 36071 NULL
++ieee80211_if_write_tsf_36077 ieee80211_if_write_tsf 3 36077 NULL
++snd_pcm_plug_read_transfer_36080 snd_pcm_plug_read_transfer 0-3 36080 NULL
++mtip_hw_read_device_status_36082 mtip_hw_read_device_status 3 36082 NULL
++vga_arb_write_36112 vga_arb_write 3 36112 NULL
++simple_xattr_alloc_36118 simple_xattr_alloc 2 36118 NULL
++ext3_readpages_36144 ext3_readpages 4 36144 NULL
++twl_set_36154 twl_set 2 36154 NULL
++b1_alloc_card_36155 b1_alloc_card 1 36155 NULL
++snd_korg1212_copy_from_36169 snd_korg1212_copy_from 6 36169 NULL
++SyS_kexec_load_36176 SyS_kexec_load 2 36176 NULL
++ramoops_init_przs_36199 ramoops_init_przs 4 36199 NULL
++SYSC_sched_getaffinity_36208 SYSC_sched_getaffinity 2 36208 NULL
++SYSC_process_vm_readv_36216 SYSC_process_vm_readv 3-5 36216 NULL
++atomic_stats_read_36228 atomic_stats_read 3 36228 NULL
++viafb_iga1_odev_proc_write_36241 viafb_iga1_odev_proc_write 3 36241 NULL
++SYSC_getxattr_36242 SYSC_getxattr 4 36242 NULL
++rproc_recovery_read_36245 rproc_recovery_read 3 36245 NULL
++scrub_stripe_36248 scrub_stripe 5-4 36248 NULL
++compat_sys_mbind_36256 compat_sys_mbind 5 36256 NULL
++usb_buffer_alloc_36276 usb_buffer_alloc 2 36276 NULL nohasharray
++cfs_hash_buckets_realloc_36276 cfs_hash_buckets_realloc 4 36276 &usb_buffer_alloc_36276
++codec_reg_read_file_36280 codec_reg_read_file 3 36280 NULL
++crypto_shash_digestsize_36284 crypto_shash_digestsize 0 36284 NULL
++nouveau_cli_create_36293 nouveau_cli_create 3 36293 NULL
++lpfc_debugfs_dif_err_read_36303 lpfc_debugfs_dif_err_read 3 36303 NULL
++cfg80211_rx_mlme_mgmt_36306 cfg80211_rx_mlme_mgmt 3 36306 NULL
++ad7879_spi_xfer_36311 ad7879_spi_xfer 3 36311 NULL
++fat_compat_ioctl_filldir_36328 fat_compat_ioctl_filldir 3 36328 NULL
++lc_create_36332 lc_create 4 36332 NULL
++jbd2_journal_init_revoke_table_36336 jbd2_journal_init_revoke_table 1 36336 NULL
++isku_sysfs_read_key_mask_36343 isku_sysfs_read_key_mask 6 36343 NULL
++ath6kl_regwrite_write_36351 ath6kl_regwrite_write 3 36351 NULL
++v9fs_file_readn_36353 v9fs_file_readn 4 36353 NULL
++to_sector_36361 to_sector 0-1 36361 NULL
++tunables_read_36385 tunables_read 3 36385 NULL
++afs_alloc_flat_call_36399 afs_alloc_flat_call 2-3 36399 NULL
++sierra_write_36402 sierra_write 4 36402 NULL
++qdsb_get_36409 qdsb_get 0 36409 NULL
++SyS_sethostname_36417 SyS_sethostname 2 36417 NULL
++ReadW6692B_36445 ReadW6692B 0 36445 NULL
++sctp_tsnmap_init_36446 sctp_tsnmap_init 2 36446 NULL
++alloc_etherdev_mqs_36450 alloc_etherdev_mqs 1 36450 NULL
++SyS_process_vm_writev_36476 SyS_process_vm_writev 3-5 36476 NULL
++lock_and_cleanup_extent_if_need_36480 lock_and_cleanup_extent_if_need 0 36480 NULL
++b43_nphy_load_samples_36481 b43_nphy_load_samples 3 36481 NULL
++ip6_append_data_36490 ip6_append_data 4 36490 NULL nohasharray
++tx_tx_checksum_result_read_36490 tx_tx_checksum_result_read 3 36490 &ip6_append_data_36490
++cmd_loop_36491 cmd_loop 0 36491 NULL
++__hwahc_op_set_ptk_36510 __hwahc_op_set_ptk 5 36510 NULL
++mcam_v4l_read_36513 mcam_v4l_read 3 36513 NULL
++_iwl_dbgfs_fw_nmi_write_36515 _iwl_dbgfs_fw_nmi_write 3 36515 NULL
++get_param_l_36518 get_param_l 0 36518 NULL
++ieee80211_if_read_fwded_frames_36520 ieee80211_if_read_fwded_frames 3 36520 NULL
++crypto_aead_authsize_36537 crypto_aead_authsize 0 36537 NULL
++cpu_type_read_36540 cpu_type_read 3 36540 NULL
++__kfifo_to_user_36555 __kfifo_to_user 3-0 36555 NULL
++btrfs_get_token_64_36572 btrfs_get_token_64 0 36572 NULL
++__erst_read_36579 __erst_read 0 36579 NULL
++put_cmsg_36589 put_cmsg 4 36589 NULL
++fat_ioctl_filldir_36621 fat_ioctl_filldir 3 36621 NULL
++vxge_config_vpaths_36636 vxge_config_vpaths 0 36636 NULL
++convert_extent_item_v0_36645 convert_extent_item_v0 4 36645 NULL
++ced_ioctl_36647 ced_ioctl 2 36647 NULL
++lpfc_idiag_extacc_alloc_get_36648 lpfc_idiag_extacc_alloc_get 0-3 36648 NULL nohasharray
++tty_copy_to_user_36648 tty_copy_to_user 4 36648 &lpfc_idiag_extacc_alloc_get_36648
++osd_req_list_collection_objects_36664 osd_req_list_collection_objects 5 36664 NULL
++iscsi_host_alloc_36671 iscsi_host_alloc 2 36671 NULL
++xillybus_read_36678 xillybus_read 3 36678 NULL
++gsmtty_write_36702 gsmtty_write 3 36702 NULL
++snd_rawmidi_kernel_read1_36740 snd_rawmidi_kernel_read1 4-0 36740 NULL
++cxgbi_device_register_36746 cxgbi_device_register 1-2 36746 NULL
++ps_poll_upsd_timeouts_read_36755 ps_poll_upsd_timeouts_read 3 36755 NULL
++ptp_filter_init_36780 ptp_filter_init 2 36780 NULL
++i40e_init_lan_hmc_36796 i40e_init_lan_hmc 5-4-3-2 36796 NULL
++proc_fault_inject_read_36802 proc_fault_inject_read 3 36802 NULL
++hiddev_ioctl_36816 hiddev_ioctl 2 36816 NULL
++int_hardware_entry_36833 int_hardware_entry 3 36833 NULL
++fc_change_queue_depth_36841 fc_change_queue_depth 2 36841 NULL
++keyctl_describe_key_36853 keyctl_describe_key 3 36853 NULL
++cm_write_36858 cm_write 3 36858 NULL
++tx_tx_data_programmed_read_36871 tx_tx_data_programmed_read 3 36871 NULL
++svc_setsockopt_36876 svc_setsockopt 5 36876 NULL
++raid56_parity_write_36877 raid56_parity_write 5 36877 NULL
++__btrfs_map_block_36883 __btrfs_map_block 3 36883 NULL
++ib_ucm_alloc_data_36885 ib_ucm_alloc_data 3 36885 NULL
++selinux_inode_notifysecctx_36896 selinux_inode_notifysecctx 3 36896 NULL
++OS_kmalloc_36909 OS_kmalloc 1 36909 NULL
++crypto_blkcipher_ivsize_36944 crypto_blkcipher_ivsize 0 36944 NULL
++il4965_rs_sta_dbgfs_scale_table_write_36979 il4965_rs_sta_dbgfs_scale_table_write 3 36979 NULL
++xfs_btree_check_sptr_36984 xfs_btree_check_sptr 0 36984 NULL
++drbd_new_dev_size_36998 drbd_new_dev_size 0-3 36998 NULL
++auok190xfb_write_37001 auok190xfb_write 3 37001 NULL
++setxattr_37006 setxattr 4 37006 NULL
++ocfs2_dlm_unlock_37037 ocfs2_dlm_unlock 0 37037 NULL
++command_file_read_37038 command_file_read 3 37038 NULL
++figure_loop_size_37051 figure_loop_size 2-3 37051 NULL
++ieee80211_if_read_drop_unencrypted_37053 ieee80211_if_read_drop_unencrypted 3 37053 NULL nohasharray
++qp_broker_create_37053 qp_broker_create 6-5 37053 &ieee80211_if_read_drop_unencrypted_37053
++SYSC_setxattr_37078 SYSC_setxattr 4 37078 NULL
++parse_command_37079 parse_command 2 37079 NULL
++pipeline_cs_rx_packet_in_read_37089 pipeline_cs_rx_packet_in_read 3 37089 NULL
++tun_get_user_37094 tun_get_user 5 37094 NULL
++xlog_grant_head_check_37116 xlog_grant_head_check 0 37116 NULL
++has_wrprotected_page_37123 has_wrprotected_page 3-2 37123 NULL
++snd_hda_get_conn_list_37132 snd_hda_get_conn_list 0 37132 NULL
++mtt_free_res_37144 mtt_free_res 5 37144 NULL
++msg_word_37164 msg_word 0 37164 NULL
++f2fs_direct_IO_37167 f2fs_direct_IO 4 37167 NULL
++vcc_recvmsg_37198 vcc_recvmsg 4 37198 NULL
++forced_ps_write_37209 forced_ps_write 3 37209 NULL
++crypto_shash_descsize_37212 crypto_shash_descsize 0 37212 NULL nohasharray
++ext4_ind_direct_IO_37212 ext4_ind_direct_IO 0-4 37212 &crypto_shash_descsize_37212
++bchannel_get_rxbuf_37213 bchannel_get_rxbuf 2-0 37213 NULL
++regmap_access_read_file_37223 regmap_access_read_file 3 37223 NULL
++__do_replace_37227 __do_replace 5 37227 NULL
++iwl_dbgfs_d3_sram_read_37237 iwl_dbgfs_d3_sram_read 3 37237 NULL
++rx_filter_dup_filter_read_37238 rx_filter_dup_filter_read 3 37238 NULL
++xfs_reclaim_inode_37257 xfs_reclaim_inode 0 37257 NULL
++exofs_max_io_pages_37263 exofs_max_io_pages 0-2 37263 NULL
++_iwl_dbgfs_fw_restart_write_37270 _iwl_dbgfs_fw_restart_write 3 37270 NULL
++ieee80211_if_read_power_mode_37305 ieee80211_if_read_power_mode 3 37305 NULL
++ext3_direct_IO_37308 ext3_direct_IO 4 37308 NULL
++jffs2_write_dirent_37311 jffs2_write_dirent 5 37311 NULL
++send_msg_37323 send_msg 4 37323 NULL
++l2cap_create_connless_pdu_37327 l2cap_create_connless_pdu 3 37327 NULL nohasharray
++bnx2x_vf_fill_fw_str_37327 bnx2x_vf_fill_fw_str 3 37327 &l2cap_create_connless_pdu_37327
++scsi_mode_select_37330 scsi_mode_select 6 37330 NULL
++rxrpc_server_sendmsg_37331 rxrpc_server_sendmsg 4 37331 NULL
++xfs_iomap_write_allocate_37336 xfs_iomap_write_allocate 0 37336 NULL
++security_inode_getsecurity_37354 security_inode_getsecurity 0 37354 NULL
++hci_sock_sendmsg_37420 hci_sock_sendmsg 4 37420 NULL
++acpi_os_allocate_zeroed_37422 acpi_os_allocate_zeroed 1 37422 NULL nohasharray
++find_next_bit_37422 find_next_bit 0 37422 &acpi_os_allocate_zeroed_37422
++tty_insert_flip_string_fixed_flag_37428 tty_insert_flip_string_fixed_flag 4-0 37428 NULL
++iwl_print_last_event_logs_37433 iwl_print_last_event_logs 0-7-9 37433 NULL
++fru_alloc_37442 fru_alloc 1 37442 NULL
++tcp_established_options_37450 tcp_established_options 0 37450 NULL nohasharray
++tipc_send2port_37450 tipc_send2port 4 37450 &tcp_established_options_37450
++xfs_btree_dec_cursor_37452 xfs_btree_dec_cursor 0 37452 NULL
++brcmf_sdio_dump_console_37455 brcmf_sdio_dump_console 4 37455 NULL
++get_est_timing_37484 get_est_timing 0 37484 NULL
++kmem_realloc_37489 kmem_realloc 2 37489 NULL
++bitmap_dirty_bits_37503 bitmap_dirty_bits 2 37503 NULL
++osc_active_seq_write_37514 osc_active_seq_write 3 37514 NULL
++bdev_writeseg_37519 bdev_writeseg 2-3 37519 NULL
++xz_dec_test_write_37527 xz_dec_test_write 3 37527 NULL
++fault_inject_read_37534 fault_inject_read 3 37534 NULL
++hdr_size_37536 hdr_size 0 37536 NULL
++extent_map_end_37550 extent_map_end 0 37550 NULL
++sep_create_dcb_dmatables_context_37551 sep_create_dcb_dmatables_context 6 37551 NULL
++fat_cont_expand_37552 fat_cont_expand 0 37552 NULL
++ioat_chansts_37558 ioat_chansts 0 37558 NULL
++xhci_alloc_streams_37586 xhci_alloc_streams 5 37586 NULL
++qla2x00_debounce_register_37597 qla2x00_debounce_register 0 37597 NULL
++kvm_read_guest_page_mmu_37611 kvm_read_guest_page_mmu 6 37611 NULL
++SYSC_mbind_37622 SYSC_mbind 5 37622 NULL
++SyS_mbind_37638 SyS_mbind 5 37638 NULL
++may_delete_37656 may_delete 0 37656 NULL
++bio_copy_user_iov_37660 bio_copy_user_iov 4 37660 NULL
++rfcomm_sock_sendmsg_37661 rfcomm_sock_sendmsg 4 37661 NULL nohasharray
++vmw_framebuffer_dmabuf_dirty_37661 vmw_framebuffer_dmabuf_dirty 6 37661 &rfcomm_sock_sendmsg_37661
++SYSC_get_mempolicy_37664 SYSC_get_mempolicy 3 37664 NULL
++__wa_seg_calculate_isoc_frame_count_37672 __wa_seg_calculate_isoc_frame_count 0 37672 NULL
++ieee80211_if_read_rc_rateidx_mcs_mask_2ghz_37675 ieee80211_if_read_rc_rateidx_mcs_mask_2ghz 3 37675 NULL
++regmap_map_read_file_37685 regmap_map_read_file 3 37685 NULL
++nametbl_header_37698 nametbl_header 2-0 37698 NULL
++__le32_to_cpup_37702 __le32_to_cpup 0 37702 NULL
++dynamic_ps_timeout_write_37713 dynamic_ps_timeout_write 3 37713 NULL
++read_enabled_file_bool_37744 read_enabled_file_bool 3 37744 NULL
++xfs_read_agf_37749 xfs_read_agf 0 37749 NULL
++ocfs2_control_cfu_37750 ocfs2_control_cfu 2 37750 NULL
++ipath_cdev_init_37752 ipath_cdev_init 1 37752 NULL
++dccp_setsockopt_cscov_37766 dccp_setsockopt_cscov 2 37766 NULL
++il4965_rs_sta_dbgfs_rate_scale_data_read_37792 il4965_rs_sta_dbgfs_rate_scale_data_read 3 37792 NULL
++smk_read_logging_37804 smk_read_logging 3 37804 NULL
++ocrdma_alloc_frmr_page_list_37815 ocrdma_alloc_frmr_page_list 2 37815 NULL
++rx_decrypt_key_not_found_read_37820 rx_decrypt_key_not_found_read 3 37820 NULL
++android_get_p2p_addr_37832 android_get_p2p_addr 0 37832 NULL
++jbd2_journal_get_undo_access_37837 jbd2_journal_get_undo_access 0 37837 NULL
++o2hb_debug_read_37851 o2hb_debug_read 3 37851 NULL
++xfs_dir2_block_to_sf_37868 xfs_dir2_block_to_sf 3 37868 NULL
++set_registers_37883 set_registers 4 37883 NULL
++btrfs_stack_file_extent_disk_bytenr_37888 btrfs_stack_file_extent_disk_bytenr 0 37888 NULL
++pkt_alloc_packet_data_37928 pkt_alloc_packet_data 1 37928 NULL nohasharray
++_rtw_malloc_37928 _rtw_malloc 1 37928 &pkt_alloc_packet_data_37928
++read_rbu_packet_size_37939 read_rbu_packet_size 6 37939 NULL
++write_file_bool_37957 write_file_bool 3 37957 NULL
++fifo_alloc_37961 fifo_alloc 1 37961 NULL
++rds_rdma_extra_size_37990 rds_rdma_extra_size 0 37990 NULL
++persistent_ram_old_size_37997 persistent_ram_old_size 0 37997 NULL
++vfs_readv_38011 vfs_readv 3 38011 NULL
++aggr_recv_addba_req_evt_38037 aggr_recv_addba_req_evt 4 38037 NULL
++il_dbgfs_chain_noise_read_38044 il_dbgfs_chain_noise_read 3 38044 NULL nohasharray
++klsi_105_prepare_write_buffer_38044 klsi_105_prepare_write_buffer 3 38044 &il_dbgfs_chain_noise_read_38044
++SyS_llistxattr_38048 SyS_llistxattr 3 38048 NULL
++sysfs_do_create_link_38051 sysfs_do_create_link 0 38051 NULL
++_xfs_buf_alloc_38058 _xfs_buf_alloc 3 38058 NULL
++nsm_create_handle_38060 nsm_create_handle 4 38060 NULL
++alloc_ltalkdev_38071 alloc_ltalkdev 1 38071 NULL
++xfs_buf_readahead_map_38081 xfs_buf_readahead_map 3 38081 NULL nohasharray
++wcn36xx_smd_rsp_process_38081 wcn36xx_smd_rsp_process 3 38081 &xfs_buf_readahead_map_38081
++uwb_mac_addr_print_38085 uwb_mac_addr_print 2 38085 NULL
++request_key_auth_new_38092 request_key_auth_new 3 38092 NULL
++proc_self_readlink_38094 proc_self_readlink 3 38094 NULL
++ep0_read_38095 ep0_read 3 38095 NULL
++sk_wmem_schedule_38096 sk_wmem_schedule 2 38096 NULL nohasharray
++osc_checksum_seq_write_38096 osc_checksum_seq_write 3 38096 &sk_wmem_schedule_38096
++o2hb_read_slots_38105 o2hb_read_slots 2 38105 NULL
++snd_pcm_oss_write_38108 snd_pcm_oss_write 3 38108 NULL
++vmw_kms_present_38130 vmw_kms_present 9 38130 NULL
++__ntfs_copy_from_user_iovec_inatomic_38153 __ntfs_copy_from_user_iovec_inatomic 0-4-3 38153 NULL
++btrfs_extent_same_38163 btrfs_extent_same 3-2 38163 NULL
++kvm_clear_guest_38164 kvm_clear_guest 3-2 38164 NULL
++cdev_add_38176 cdev_add 2-3 38176 NULL
++rt2x00debug_write_rf_38195 rt2x00debug_write_rf 3 38195 NULL
++get_ucode_user_38202 get_ucode_user 3 38202 NULL
++osd_req_list_partition_collections_38223 osd_req_list_partition_collections 5 38223 NULL nohasharray
++xfs_rtallocate_range_38223 xfs_rtallocate_range 0 38223 &osd_req_list_partition_collections_38223
++ceph_decode_16_38239 ceph_decode_16 0 38239 NULL
++_ipw_read_reg32_38245 _ipw_read_reg32 0 38245 NULL
++xfs_qm_dqrepair_38262 xfs_qm_dqrepair 0 38262 NULL
++mthca_alloc_icm_table_38268 mthca_alloc_icm_table 4-3 38268 NULL nohasharray
++ieee80211_if_read_auto_open_plinks_38268 ieee80211_if_read_auto_open_plinks 3 38268 &mthca_alloc_icm_table_38268 nohasharray
++SYSC_msgrcv_38268 SYSC_msgrcv 3 38268 &ieee80211_if_read_auto_open_plinks_38268
++xfs_bmbt_to_bmdr_38275 xfs_bmbt_to_bmdr 3 38275 NULL nohasharray
++xfs_bmdr_to_bmbt_38275 xfs_bmdr_to_bmbt 5 38275 &xfs_bmbt_to_bmdr_38275
++ftdi_process_packet_38281 ftdi_process_packet 4 38281 NULL
++ucma_query_path_38305 ucma_query_path 3 38305 NULL
++isr_rx_headers_read_38325 isr_rx_headers_read 3 38325 NULL
++ida_simple_get_38326 ida_simple_get 0 38326 NULL
++__snd_gf1_look8_38333 __snd_gf1_look8 0 38333 NULL
++btrfs_file_extent_disk_num_bytes_38363 btrfs_file_extent_disk_num_bytes 0 38363 NULL
++xfs_free_file_space_38383 xfs_free_file_space 2-3 38383 NULL
++dn_sendmsg_38390 dn_sendmsg 4 38390 NULL
++ieee80211_if_read_dtim_count_38419 ieee80211_if_read_dtim_count 3 38419 NULL
++pmcraid_copy_sglist_38431 pmcraid_copy_sglist 3 38431 NULL
++kvm_write_guest_38454 kvm_write_guest 4-2 38454 NULL
++_iwl_dbgfs_scan_ant_rxchain_write_38479 _iwl_dbgfs_scan_ant_rxchain_write 3 38479 NULL
++blk_end_bidi_request_38482 blk_end_bidi_request 3-4 38482 NULL
++dev_names_read_38509 dev_names_read 3 38509 NULL
++iscsi_create_iface_38510 iscsi_create_iface 5 38510 NULL
++event_rx_mismatch_read_38518 event_rx_mismatch_read 3 38518 NULL
++ubifs_idx_node_sz_38546 ubifs_idx_node_sz 0-2 38546 NULL
++btrfs_discard_extent_38547 btrfs_discard_extent 2 38547 NULL
++kuc_len_38557 kuc_len 0-1 38557 NULL
++irda_sendmsg_dgram_38563 irda_sendmsg_dgram 4 38563 NULL
++il4965_rs_sta_dbgfs_scale_table_read_38564 il4965_rs_sta_dbgfs_scale_table_read 3 38564 NULL
++_ipw_read32_38565 _ipw_read32 0 38565 NULL
++snd_nm256_playback_copy_38567 snd_nm256_playback_copy 5-3 38567 NULL
++copy_ctl_value_to_user_38587 copy_ctl_value_to_user 4 38587 NULL
++rd_allocate_sgl_table_38607 rd_allocate_sgl_table 3 38607 NULL
++icn_writecmd_38629 icn_writecmd 2 38629 NULL
++write_enabled_file_bool_38630 write_enabled_file_bool 3 38630 NULL
++ext2_readpages_38640 ext2_readpages 4 38640 NULL
++audit_init_entry_38644 audit_init_entry 1 38644 NULL
++qp_broker_alloc_38646 qp_broker_alloc 6-5 38646 NULL
++mmc_send_cxd_data_38655 mmc_send_cxd_data 5 38655 NULL
++nouveau_instmem_create__38664 nouveau_instmem_create_ 4 38664 NULL
++snd_es1371_wait_src_ready_38673 snd_es1371_wait_src_ready 0 38673 NULL
++iscsit_dump_data_payload_38683 iscsit_dump_data_payload 2 38683 NULL
++rbio_add_io_page_38700 rbio_add_io_page 6 38700 NULL
++w83977af_sir_interrupt_38738 w83977af_sir_interrupt 0 38738 NULL
++udf_readpages_38761 udf_readpages 4 38761 NULL
++iwl_dbgfs_thermal_throttling_read_38779 iwl_dbgfs_thermal_throttling_read 3 38779 NULL
++bcache_device_init_38781 bcache_device_init 3 38781 NULL
++snd_gus_dram_write_38784 snd_gus_dram_write 4 38784 NULL
++do_pci_enable_device_38802 do_pci_enable_device 0 38802 NULL
++err_decode_38804 err_decode 2 38804 NULL
++ipv6_renew_option_38813 ipv6_renew_option 3 38813 NULL
++direct_entry_38836 direct_entry 3 38836 NULL
++compat_udp_setsockopt_38840 compat_udp_setsockopt 5 38840 NULL
++read_nic_io_word_38853 read_nic_io_word 0 38853 NULL
++interfaces_38859 interfaces 2 38859 NULL
++dbgfs_state_38894 dbgfs_state 3 38894 NULL
++il_dbgfs_sram_write_38942 il_dbgfs_sram_write 3 38942 NULL
++__ath6kl_wmi_send_mgmt_cmd_38971 __ath6kl_wmi_send_mgmt_cmd 7 38971 NULL
++usb_maxpacket_38977 usb_maxpacket 0 38977 NULL nohasharray
++C_SYSC_preadv64_38977 C_SYSC_preadv64 3 38977 &usb_maxpacket_38977
++OSDSetBlock_38986 OSDSetBlock 2-4 38986 NULL
++bio_clone_range_38997 bio_clone_range 2 38997 NULL
++lpfc_idiag_extacc_write_38998 lpfc_idiag_extacc_write 3 38998 NULL
++get_nodes_39012 get_nodes 3 39012 NULL
++twl6030_interrupt_unmask_39013 twl6030_interrupt_unmask 2 39013 NULL
++__blkdev_issue_zeroout_39020 __blkdev_issue_zeroout 3 39020 NULL
++_zd_iowrite32v_async_locked_39034 _zd_iowrite32v_async_locked 3 39034 NULL
++do_write_kmem_39051 do_write_kmem 0-1-3 39051 NULL
++ReadHFC_39104 ReadHFC 0 39104 NULL
++tomoyo_truncate_39105 tomoyo_truncate 0 39105 NULL
++__kfifo_to_user_r_39123 __kfifo_to_user_r 5-3 39123 NULL
++ea_foreach_39133 ea_foreach 0 39133 NULL
++generic_permission_39150 generic_permission 0 39150 NULL
++proc_coredump_filter_read_39153 proc_coredump_filter_read 3 39153 NULL
++ath9k_hw_ar9003_dump_eeprom_39156 ath9k_hw_ar9003_dump_eeprom 5-4 39156 NULL
++echo_client_kbrw_39170 echo_client_kbrw 6 39170 NULL
++ext3_xattr_check_names_39174 ext3_xattr_check_names 0 39174 NULL
++ubi_more_update_data_39189 ubi_more_update_data 4 39189 NULL
++qcam_read_bytes_39205 qcam_read_bytes 0 39205 NULL
++ivtv_v4l2_write_39226 ivtv_v4l2_write 3 39226 NULL
++posix_acl_to_xattr_39237 posix_acl_to_xattr 0 39237 NULL
++snd_pcm_capture_forward_39248 snd_pcm_capture_forward 2 39248 NULL
++r128_compat_ioctl_39250 r128_compat_ioctl 2 39250 NULL nohasharray
++pwr_cont_miss_bcns_spread_read_39250 pwr_cont_miss_bcns_spread_read 3 39250 &r128_compat_ioctl_39250
++i915_error_state_read_39254 i915_error_state_read 3 39254 NULL
++rx_filter_protection_filter_read_39282 rx_filter_protection_filter_read 3 39282 NULL
++_iwl_dbgfs_pm_params_write_39325 _iwl_dbgfs_pm_params_write 3 39325 NULL
++__cfg80211_connect_result_39326 __cfg80211_connect_result 4-6 39326 NULL
++insert_reserved_file_extent_39327 insert_reserved_file_extent 3 39327 NULL
++wimax_msg_alloc_39343 wimax_msg_alloc 4 39343 NULL
++ide_complete_rq_39354 ide_complete_rq 3 39354 NULL
++gfs2_dir_write_data_39357 gfs2_dir_write_data 3-4 39357 NULL
++do_write_log_from_user_39362 do_write_log_from_user 3-0 39362 NULL
++vortex_wtdma_getlinearpos_39371 vortex_wtdma_getlinearpos 0 39371 NULL
++regmap_name_read_file_39379 regmap_name_read_file 3 39379 NULL
++fnic_trace_debugfs_read_39380 fnic_trace_debugfs_read 3 39380 NULL
++ps_poll_ps_poll_utilization_read_39383 ps_poll_ps_poll_utilization_read 3 39383 NULL
++__send_to_port_39386 __send_to_port 3 39386 NULL
++xfs_btree_dup_cursor_39394 xfs_btree_dup_cursor 0 39394 NULL
++gfs2_internal_read_39413 gfs2_internal_read 0 39413 NULL
++user_power_read_39414 user_power_read 3 39414 NULL
++alloc_agpphysmem_i8xx_39427 alloc_agpphysmem_i8xx 1 39427 NULL
++mic_desc_size_39464 mic_desc_size 0 39464 NULL
++apei_resources_add_39470 apei_resources_add 0 39470 NULL
++setkey_unaligned_39474 setkey_unaligned 3 39474 NULL
++ieee80211_if_fmt_dot11MeshHWMPmaxPREQretries_39499 ieee80211_if_fmt_dot11MeshHWMPmaxPREQretries 3 39499 NULL
++cl_req_alloc_39523 cl_req_alloc 4 39523 NULL
++int_proc_write_39542 int_proc_write 3 39542 NULL
++pp_write_39554 pp_write 3 39554 NULL
++datablob_format_39571 datablob_format 2 39571 NULL nohasharray
++ieee80211_if_read_fwded_mcast_39571 ieee80211_if_read_fwded_mcast 3 39571 &datablob_format_39571
++memblock_virt_alloc_internal_39600 memblock_virt_alloc_internal 1 39600 NULL
++ext_depth_39607 ext_depth 0 39607 NULL
++batadv_tt_tvlv_generate_39615 batadv_tt_tvlv_generate 4 39615 NULL
++nfs_idmap_get_key_39616 nfs_idmap_get_key 2 39616 NULL
++sdio_readb_39618 sdio_readb 0 39618 NULL
++prepare_uptodate_page_39622 prepare_uptodate_page 0 39622 NULL
++set_dev_class_39645 set_dev_class 4 39645 NULL
++snd_rme32_capture_copy_39653 snd_rme32_capture_copy 5 39653 NULL
++tcp_try_rmem_schedule_39657 tcp_try_rmem_schedule 3 39657 NULL
++kvm_read_guest_cached_39666 kvm_read_guest_cached 4 39666 NULL
++v4l_stk_read_39672 v4l_stk_read 3 39672 NULL
++hsc_msg_len_get_39673 hsc_msg_len_get 0 39673 NULL
++do_surface_dirty_sou_39678 do_surface_dirty_sou 7 39678 NULL
++sd_completed_bytes_39705 sd_completed_bytes 0 39705 NULL
++ftrace_pid_write_39710 ftrace_pid_write 3 39710 NULL
++adt7316_spi_multi_read_39765 adt7316_spi_multi_read 3 39765 NULL
++persistent_ram_buffer_map_39776 persistent_ram_buffer_map 1-2 39776 NULL
++security_inode_listsecurity_39812 security_inode_listsecurity 0 39812 NULL
++snd_pcm_oss_writev3_39818 snd_pcm_oss_writev3 3 39818 NULL
++get_priv_size_39828 get_priv_size 0-1 39828 NULL
++pkt_add_39897 pkt_add 3 39897 NULL
++read_file_modal_eeprom_39909 read_file_modal_eeprom 3 39909 NULL
++gen_pool_add_virt_39913 gen_pool_add_virt 4 39913 NULL
++dw210x_op_rw_39915 dw210x_op_rw 6 39915 NULL
++__mnt_want_write_file_39917 __mnt_want_write_file 0 39917 NULL
++aes_encrypt_interrupt_read_39919 aes_encrypt_interrupt_read 3 39919 NULL
++exofs_read_kern_39921 exofs_read_kern 6 39921 NULL nohasharray
++oom_score_adj_read_39921 oom_score_adj_read 3 39921 &exofs_read_kern_39921
++__spi_async_39932 __spi_async 0 39932 NULL
++__get_order_39935 __get_order 0 39935 NULL
++error_error_frame_read_39947 error_error_frame_read 3 39947 NULL
++tty_prepare_flip_string_39955 tty_prepare_flip_string 3-0 39955 NULL
++lstcon_group_list_39958 lstcon_group_list 2 39958 NULL
++bio_chain_clone_range_39967 bio_chain_clone_range 3 39967 NULL
++dma_push_rx_39973 dma_push_rx 2 39973 NULL
++broadsheetfb_write_39976 broadsheetfb_write 3 39976 NULL
++mthca_array_init_39987 mthca_array_init 2 39987 NULL
++fw_device_op_read_39990 fw_device_op_read 3 39990 NULL
++server_name2svname_39998 server_name2svname 4 39998 NULL
++xen_hvm_config_40018 xen_hvm_config 2 40018 NULL
++ivtvfb_write_40023 ivtvfb_write 3 40023 NULL
++disc_pwup_write_40027 disc_pwup_write 3 40027 NULL
++ea_foreach_i_40028 ea_foreach_i 0 40028 NULL
++datablob_hmac_append_40038 datablob_hmac_append 3 40038 NULL
++l2cap_create_iframe_pdu_40055 l2cap_create_iframe_pdu 3 40055 NULL nohasharray
++add_tty_40055 add_tty 1 40055 &l2cap_create_iframe_pdu_40055
++atomic_xchg_40070 atomic_xchg 0 40070 NULL
++xfs_rtbuf_get_40107 xfs_rtbuf_get 0 40107 NULL
++sctp_setsockopt_delayed_ack_40129 sctp_setsockopt_delayed_ack 3 40129 NULL
++dwc2_max_desc_num_40132 dwc2_max_desc_num 0 40132 NULL
++rx_rx_frame_checksum_read_40140 rx_rx_frame_checksum_read 3 40140 NULL
++ath10k_write_simulate_fw_crash_40143 ath10k_write_simulate_fw_crash 3 40143 NULL
++iwch_alloc_fastreg_pbl_40153 iwch_alloc_fastreg_pbl 2 40153 NULL
++pt_write_40159 pt_write 3 40159 NULL
++scsi_sg_count_40182 scsi_sg_count 0 40182 NULL
++ipr_alloc_ucode_buffer_40199 ipr_alloc_ucode_buffer 1 40199 NULL
++allocate_probes_40204 allocate_probes 1 40204 NULL
++au0828_v4l2_read_40220 au0828_v4l2_read 3 40220 NULL
++compress_file_range_40225 compress_file_range 3-4 40225 NULL
++osst_read_40237 osst_read 3 40237 NULL
++lpage_info_slot_40243 lpage_info_slot 3-1 40243 NULL
++ocfs2_zero_extend_get_range_40248 ocfs2_zero_extend_get_range 4-3 40248 NULL
++rs_sta_dbgfs_scale_table_read_40262 rs_sta_dbgfs_scale_table_read 3 40262 NULL
++ext2_fiemap_40271 ext2_fiemap 4 40271 NULL
++usbnet_read_cmd_40275 usbnet_read_cmd 7 40275 NULL
++rx_xfr_hint_trig_read_40283 rx_xfr_hint_trig_read 3 40283 NULL
++SyS_bind_40303 SyS_bind 3 40303 NULL
++ib_get_mad_data_offset_40336 ib_get_mad_data_offset 0 40336 NULL
++mmio_read_40348 mmio_read 4 40348 NULL
++event_rx_mem_empty_read_40363 event_rx_mem_empty_read 3 40363 NULL
++ocfs2_check_range_for_refcount_40365 ocfs2_check_range_for_refcount 3-2 40365 NULL
++get_chars_40373 get_chars 3 40373 NULL
++fb_prepare_extra_logos_40429 fb_prepare_extra_logos 0-2 40429 NULL
++tomoyo_update_policy_40458 tomoyo_update_policy 2 40458 NULL
++zd_usb_scnprint_id_40459 zd_usb_scnprint_id 0-3 40459 NULL
++gp2ap020a00f_write_event_threshold_40461 gp2ap020a00f_write_event_threshold 2 40461 NULL
++SyS_writev_40467 SyS_writev 3 40467 NULL
++SyS_select_40473 SyS_select 1 40473 NULL
++afs_fs_store_data_40484 afs_fs_store_data 3-4-5-6 40484 NULL
++batadv_hash_new_40491 batadv_hash_new 1 40491 NULL
++devcgroup_inode_permission_40492 devcgroup_inode_permission 0 40492 NULL
++xfs_iread_extents_40510 xfs_iread_extents 0 40510 NULL
++__ethtool_get_sset_count_40511 __ethtool_get_sset_count 0 40511 NULL
++TSS_checkhmac2_40520 TSS_checkhmac2 5-7 40520 NULL
++ixgbe_dbg_reg_ops_read_40540 ixgbe_dbg_reg_ops_read 3 40540 NULL
++ima_write_policy_40548 ima_write_policy 3 40548 NULL
++esp_alloc_tmp_40558 esp_alloc_tmp 3-2 40558 NULL
++b1_get_byte_40597 b1_get_byte 0 40597 NULL
++get_priv_descr_and_size_40612 get_priv_descr_and_size 0 40612 NULL
++twl4030_kpwrite_u8_40665 twl4030_kpwrite_u8 3 40665 NULL
++__cfg80211_roamed_40668 __cfg80211_roamed 4-6 40668 NULL
++pipeline_rx_complete_stat_fifo_int_read_40671 pipeline_rx_complete_stat_fifo_int_read 3 40671 NULL
++fops_read_40672 fops_read 3 40672 NULL
++idr_get_empty_slot_40674 idr_get_empty_slot 0 40674 NULL
++alloc_rbio_40676 alloc_rbio 4 40676 NULL
++videobuf_dma_init_user_locked_40678 videobuf_dma_init_user_locked 4-3 40678 NULL
++pci_enable_resources_40680 pci_enable_resources 0 40680 NULL
++nfc_hci_set_param_40697 nfc_hci_set_param 5 40697 NULL
++__seq_open_private_40715 __seq_open_private 3 40715 NULL
++set_extent_bit_40719 set_extent_bit 0 40719 NULL
++fuse_readpages_40737 fuse_readpages 4 40737 NULL
++xfs_iext_remove_direct_40744 xfs_iext_remove_direct 3 40744 NULL
++security_inode_listxattr_40752 security_inode_listxattr 0 40752 NULL
++card_send_command_40757 card_send_command 3 40757 NULL
++ad1889_readl_40765 ad1889_readl 0 40765 NULL
++pg_write_40766 pg_write 3 40766 NULL
++kernfs_fop_read_40770 kernfs_fop_read 3 40770 NULL
++show_list_40775 show_list 3-0 40775 NULL
++kfifo_out_copy_r_40784 kfifo_out_copy_r 3-0 40784 NULL
++bitmap_weight_40791 bitmap_weight 0-2 40791 NULL
++pyra_sysfs_read_40795 pyra_sysfs_read 6 40795 NULL
++add_action_40811 add_action 4 40811 NULL
++nl80211_send_roamed_40825 nl80211_send_roamed 5-7 40825 NULL
++SyS_mbind_40828 SyS_mbind 5 40828 NULL
++nilfs_mdt_init_40849 nilfs_mdt_init 3 40849 NULL
++v9fs_file_read_40858 v9fs_file_read 3 40858 NULL
++read_file_queue_40895 read_file_queue 3 40895 NULL
++waiters_read_40902 waiters_read 3 40902 NULL
++isdn_add_channels_40905 isdn_add_channels 3 40905 NULL
++gfs2_ea_find_40913 gfs2_ea_find 0 40913 NULL
++vol_cdev_write_40915 vol_cdev_write 3 40915 NULL
++snd_vx_create_40948 snd_vx_create 4 40948 NULL nohasharray
++sg_alloc_table_40948 sg_alloc_table 0 40948 &snd_vx_create_40948
++rds_sendmsg_40976 rds_sendmsg 4 40976 NULL
++il_dbgfs_fh_reg_read_40993 il_dbgfs_fh_reg_read 3 40993 NULL
++iwl_dbgfs_scan_ant_rxchain_read_40999 iwl_dbgfs_scan_ant_rxchain_read 3 40999 NULL
++mac80211_format_buffer_41010 mac80211_format_buffer 2 41010 NULL
++__proc_dobitmasks_41029 __proc_dobitmasks 5 41029 NULL
++_req_append_segment_41031 _req_append_segment 2 41031 NULL
++mISDN_sock_sendmsg_41035 mISDN_sock_sendmsg 4 41035 NULL
++ocfs2_xattr_index_block_find_41040 ocfs2_xattr_index_block_find 0 41040 NULL
++lprocfs_write_frac_helper_41050 lprocfs_write_frac_helper 2 41050 NULL
++vfs_listxattr_41062 vfs_listxattr 0 41062 NULL nohasharray
++beacon_filtering_write_41062 beacon_filtering_write 3 41062 &vfs_listxattr_41062
++cfg80211_inform_bss_frame_41078 cfg80211_inform_bss_frame 4 41078 NULL
++nvme_map_user_pages_41093 nvme_map_user_pages 4-3 41093 NULL nohasharray
++roccat_read_41093 roccat_read 3 41093 &nvme_map_user_pages_41093
++dma_attach_41094 dma_attach 5-6 41094 NULL
++provide_user_output_41105 provide_user_output 3 41105 NULL
++f_audio_buffer_alloc_41110 f_audio_buffer_alloc 1 41110 NULL
++ath10k_read_wmi_services_41112 ath10k_read_wmi_services 3 41112 NULL
++v4l2_ctrl_new_int_menu_41151 v4l2_ctrl_new_int_menu 4 41151 NULL
++tx_frag_mpdu_alloc_failed_read_41167 tx_frag_mpdu_alloc_failed_read 3 41167 NULL
++dvb_ca_write_41171 dvb_ca_write 3 41171 NULL
++compat_sys_process_vm_writev_41194 compat_sys_process_vm_writev 3-5 41194 NULL
++dfs_file_write_41196 dfs_file_write 3 41196 NULL
++nfs_page_array_len_41219 nfs_page_array_len 0-2-1 41219 NULL
++cfg80211_process_disassoc_41231 cfg80211_process_disassoc 3 41231 NULL
++hiddev_compat_ioctl_41255 hiddev_compat_ioctl 2 41255 NULL
++erst_read_41260 erst_read 0 41260 NULL
++alloc_context_41283 alloc_context 1 41283 NULL
++o2hb_setup_one_bio_41341 o2hb_setup_one_bio 4 41341 NULL
++twl_change_queue_depth_41342 twl_change_queue_depth 2 41342 NULL
++rtw_android_set_block_41347 rtw_android_set_block 0 41347 NULL
++ceph_do_getattr_41349 ceph_do_getattr 0 41349 NULL
++cnic_init_id_tbl_41354 cnic_init_id_tbl 2 41354 NULL
++kmp_init_41373 kmp_init 2 41373 NULL
++isr_commands_read_41398 isr_commands_read 3 41398 NULL
++rx_defrag_decrypt_failed_read_41411 rx_defrag_decrypt_failed_read 3 41411 NULL
++xfs_iext_add_41422 xfs_iext_add 3 41422 NULL
++isdn_ppp_fill_rq_41428 isdn_ppp_fill_rq 2 41428 NULL
++lbs_rdrf_read_41431 lbs_rdrf_read 3 41431 NULL
++iio_device_alloc_41440 iio_device_alloc 1 41440 NULL
++ntfs_file_buffered_write_41442 ntfs_file_buffered_write 6-4-0 41442 NULL
++pcpu_build_alloc_info_41443 pcpu_build_alloc_info 1-2-3 41443 NULL
++se_io_cb_41461 se_io_cb 3 41461 NULL
++layout_leb_in_gaps_41470 layout_leb_in_gaps 0 41470 NULL
++rt2x00debug_write_rfcsr_41473 rt2x00debug_write_rfcsr 3 41473 NULL
++bl_alloc_init_bio_41478 bl_alloc_init_bio 1 41478 NULL
++kvm_unmap_hva_range_41484 kvm_unmap_hva_range 3-2 41484 NULL
++wep_interrupt_read_41492 wep_interrupt_read 3 41492 NULL
++SyS_get_mempolicy_41495 SyS_get_mempolicy 3 41495 NULL
++hpfs_translate_name_41497 hpfs_translate_name 3 41497 NULL
++xfrm_hash_new_size_41505 xfrm_hash_new_size 0-1 41505 NULL
++SyS_preadv_41523 SyS_preadv 3 41523 NULL
++dm_get_reserved_rq_based_ios_41529 dm_get_reserved_rq_based_ios 0 41529 NULL
++tx_tx_frame_checksum_read_41553 tx_tx_frame_checksum_read 3 41553 NULL
++ath6kl_endpoint_stats_read_41554 ath6kl_endpoint_stats_read 3 41554 NULL
++nr_status_frames_41559 nr_status_frames 0-1 41559 NULL nohasharray
++si476x_radio_fops_read_41559 si476x_radio_fops_read 3 41559 &nr_status_frames_41559
++rng_dev_read_41581 rng_dev_read 3 41581 NULL
++batadv_tvlv_container_ogm_append_41588 batadv_tvlv_container_ogm_append 4 41588 NULL
++vga_io_r_41609 vga_io_r 0 41609 NULL
++tcp_hdrlen_41610 tcp_hdrlen 0 41610 NULL
++lbs_bcnmiss_write_41613 lbs_bcnmiss_write 3 41613 NULL nohasharray
++usb_endpoint_maxp_41613 usb_endpoint_maxp 0 41613 &lbs_bcnmiss_write_41613
++a2mp_send_41615 a2mp_send 4 41615 NULL
++lstcon_batch_list_41627 lstcon_batch_list 2 41627 NULL
++mempool_create_kmalloc_pool_41650 mempool_create_kmalloc_pool 1 41650 NULL
++rx_rx_pre_complt_read_41653 rx_rx_pre_complt_read 3 41653 NULL
++get_std_timing_41654 get_std_timing 0 41654 NULL
++ieee80211_if_fmt_bssid_41677 ieee80211_if_fmt_bssid 3 41677 NULL
++fill_pcm_stream_name_41685 fill_pcm_stream_name 2 41685 NULL
++lov_unpackmd_41701 lov_unpackmd 4 41701 NULL
++apei_exec_for_each_entry_41717 apei_exec_for_each_entry 0 41717 NULL
++fillonedir_41746 fillonedir 3 41746 NULL
++iwl_dbgfs_bt_notif_read_41794 iwl_dbgfs_bt_notif_read 3 41794 NULL
++hsi_alloc_controller_41802 hsi_alloc_controller 1 41802 NULL
++rtw_android_get_macaddr_41812 rtw_android_get_macaddr 0 41812 NULL
++sco_send_frame_41815 sco_send_frame 3 41815 NULL
++ixgbe_dbg_netdev_ops_read_41839 ixgbe_dbg_netdev_ops_read 3 41839 NULL
++do_ip_setsockopt_41852 do_ip_setsockopt 5 41852 NULL
++keyctl_instantiate_key_41855 keyctl_instantiate_key 3 41855 NULL
++xfs_rtget_summary_41864 xfs_rtget_summary 0 41864 NULL
++pci_map_single_41869 pci_map_single 0 41869 NULL
++usb_gadget_get_string_41871 usb_gadget_get_string 0 41871 NULL
++v_APCI3120_InterruptDmaMoveBlock16bit_41914 v_APCI3120_InterruptDmaMoveBlock16bit 4 41914 NULL
++get_fdb_entries_41916 get_fdb_entries 3 41916 NULL
++ext4_da_write_inline_data_begin_41935 ext4_da_write_inline_data_begin 3-4 41935 NULL
++sci_rxfill_41945 sci_rxfill 0 41945 NULL
++read_gssp_41947 read_gssp 3 41947 NULL
++ocfs2_xattr_bucket_get_name_value_41949 ocfs2_xattr_bucket_get_name_value 0 41949 NULL
++portnames_read_41958 portnames_read 3 41958 NULL
++dst_mtu_41969 dst_mtu 0 41969 NULL
++cx24116_writeregN_41975 cx24116_writeregN 4 41975 NULL
++xfs_qm_dqalloc_41985 xfs_qm_dqalloc 0 41985 NULL
++pool_allocate_42012 pool_allocate 3 42012 NULL
++spidev_sync_read_42014 spidev_sync_read 0 42014 NULL
++rs_sta_dbgfs_scale_table_write_42017 rs_sta_dbgfs_scale_table_write 3 42017 NULL
++acpi_ut_create_buffer_object_42030 acpi_ut_create_buffer_object 1 42030 NULL
++__hwahc_op_set_gtk_42038 __hwahc_op_set_gtk 4 42038 NULL
++alloc_trace_kprobe_42041 alloc_trace_kprobe 6 42041 NULL
++irda_sendmsg_ultra_42047 irda_sendmsg_ultra 4 42047 NULL
++jffs2_do_link_42048 jffs2_do_link 6 42048 NULL
++ps_poll_upsd_max_ap_turn_read_42050 ps_poll_upsd_max_ap_turn_read 3 42050 NULL
++InterfaceTransmitPacket_42058 InterfaceTransmitPacket 3 42058 NULL
++scsi_execute_req_42088 scsi_execute_req 5 42088 NULL
++sk_chk_filter_42095 sk_chk_filter 2 42095 NULL
++submit_inquiry_42108 submit_inquiry 3 42108 NULL
++dw_dma_cyclic_prep_42113 dw_dma_cyclic_prep 3-4 42113 NULL
++blk_ioctl_zeroout_42160 blk_ioctl_zeroout 3 42160 NULL
++mmc_align_data_size_42161 mmc_align_data_size 0-2 42161 NULL
++read_file_base_eeprom_42168 read_file_base_eeprom 3 42168 NULL
++oprofilefs_str_to_user_42182 oprofilefs_str_to_user 3 42182 NULL
++write_file_beacon_42185 write_file_beacon 3 42185 NULL
++get_znodes_to_commit_42201 get_znodes_to_commit 0 42201 NULL
++pla_ocp_read_42235 pla_ocp_read 3 42235 NULL
++xfs_rtfree_range_42244 xfs_rtfree_range 0 42244 NULL
++rx_defrag_need_decrypt_read_42253 rx_defrag_need_decrypt_read 3 42253 NULL
++find_last_bit_42260 find_last_bit 0 42260 NULL
++__pcpu_size_to_slot_42271 __pcpu_size_to_slot 0 42271 NULL
++__tty_buffer_request_room_42276 __tty_buffer_request_room 2-0 42276 NULL
++snd_pcm_hw_param_value_max_42280 snd_pcm_hw_param_value_max 0 42280 NULL
++__cpus_weight_42299 __cpus_weight 2-0 42299 NULL
++sel_read_perm_42302 sel_read_perm 3 42302 NULL
++sctp_setsockopt_del_key_42304 sctp_setsockopt_del_key 3 42304 NULL nohasharray
++ulong_read_file_42304 ulong_read_file 3 42304 &sctp_setsockopt_del_key_42304
++xfs_vm_readpages_42308 xfs_vm_readpages 4 42308 NULL
++hysdn_conf_read_42324 hysdn_conf_read 3 42324 NULL
++tcp_sync_mss_42330 tcp_sync_mss 2-0 42330 NULL
++ide_raw_taskfile_42355 ide_raw_taskfile 4 42355 NULL
++tipc_send_42374 tipc_send 3 42374 NULL
++drbd_md_last_sector_42378 drbd_md_last_sector 0 42378 NULL
++il_dbgfs_disable_ht40_read_42386 il_dbgfs_disable_ht40_read 3 42386 NULL
++msnd_fifo_read_42406 msnd_fifo_read 0-3 42406 NULL
++krng_get_random_42420 krng_get_random 3 42420 NULL
++gsm_data_alloc_42437 gsm_data_alloc 3 42437 NULL
++key_conf_keyidx_read_42443 key_conf_keyidx_read 3 42443 NULL
++snd_pcm_action_group_42452 snd_pcm_action_group 0 42452 NULL
++tcm_loop_change_queue_depth_42454 tcm_loop_change_queue_depth 2 42454 NULL
++kuc_free_42455 kuc_free 2 42455 NULL
++__simple_xattr_set_42474 __simple_xattr_set 4 42474 NULL
++omfs_readpages_42490 omfs_readpages 4 42490 NULL
++bypass_write_42498 bypass_write 3 42498 NULL
++SyS_mincore_42511 SyS_mincore 1-2 42511 NULL
++kvm_write_wall_clock_42520 kvm_write_wall_clock 2 42520 NULL
++dio_bio_complete_42524 dio_bio_complete 0 42524 NULL
++smk_write_netlbladdr_42525 smk_write_netlbladdr 3 42525 NULL
++dbAllocNear_42546 dbAllocNear 0 42546 NULL
++ath6kl_wmi_proc_events_vif_42549 ath6kl_wmi_proc_events_vif 5 42549 NULL
++udp_recvmsg_42558 udp_recvmsg 4 42558 NULL
++iwl_print_event_log_42566 iwl_print_event_log 7-5-0 42566 NULL
++xfrm_new_hash_mask_42579 xfrm_new_hash_mask 0-1 42579 NULL
++oom_score_adj_write_42594 oom_score_adj_write 3 42594 NULL
++ieee80211_if_fmt_dot11MeshHWMPactivePathTimeout_42635 ieee80211_if_fmt_dot11MeshHWMPactivePathTimeout 3 42635 NULL
++scsi_activate_tcq_42640 scsi_activate_tcq 2 42640 NULL
++br_mdb_rehash_42643 br_mdb_rehash 2 42643 NULL
++parport_pc_compat_write_block_pio_42644 parport_pc_compat_write_block_pio 3 42644 NULL
++_regmap_raw_write_42652 _regmap_raw_write 4-2 42652 NULL
++request_key_and_link_42693 request_key_and_link 4 42693 NULL
++vb2_read_42703 vb2_read 3 42703 NULL
++read_status_42722 read_status 0 42722 NULL
++dvb_demux_ioctl_42733 dvb_demux_ioctl 2 42733 NULL
++set_aoe_iflist_42737 set_aoe_iflist 2 42737 NULL
++ax25_setsockopt_42740 ax25_setsockopt 5 42740 NULL
++dpm_sysfs_add_42756 dpm_sysfs_add 0 42756 NULL
++x25_recvmsg_42777 x25_recvmsg 4 42777 NULL
++snd_midi_event_decode_42780 snd_midi_event_decode 0 42780 NULL
++cryptd_hash_setkey_42781 cryptd_hash_setkey 3 42781 NULL nohasharray
++isku_sysfs_read_info_42781 isku_sysfs_read_info 6 42781 &cryptd_hash_setkey_42781
++elfcorehdr_read_notes_42786 elfcorehdr_read_notes 2 42786 NULL
++koneplus_sysfs_read_42792 koneplus_sysfs_read 6 42792 NULL
++ntfs_attr_extend_allocation_42796 ntfs_attr_extend_allocation 0 42796 NULL
++fw_device_op_compat_ioctl_42804 fw_device_op_compat_ioctl 2 42804 NULL
++drm_ioctl_42813 drm_ioctl 2 42813 NULL
++iwl_dbgfs_ucode_bt_stats_read_42820 iwl_dbgfs_ucode_bt_stats_read 3 42820 NULL
++set_arg_42824 set_arg 3 42824 NULL
++si476x_radio_read_rsq_blob_42827 si476x_radio_read_rsq_blob 3 42827 NULL
++ocfs2_clusters_for_bytes_42872 ocfs2_clusters_for_bytes 0-2 42872 NULL
++nvme_trans_unit_serial_page_42879 nvme_trans_unit_serial_page 4 42879 NULL
++xpc_kmalloc_cacheline_aligned_42895 xpc_kmalloc_cacheline_aligned 1 42895 NULL
++hd_end_request_42904 hd_end_request 2 42904 NULL
++sta_last_rx_rate_read_42909 sta_last_rx_rate_read 3 42909 NULL
++xfs_bmapi_allocate_42938 xfs_bmapi_allocate 0 42938 NULL
++sctp_getsockopt_maxburst_42941 sctp_getsockopt_maxburst 2 42941 NULL
++vx_reset_chk_42946 vx_reset_chk 0 42946 NULL
++blkdev_direct_IO_42962 blkdev_direct_IO 4 42962 NULL
++compat_udpv6_setsockopt_42981 compat_udpv6_setsockopt 5 42981 NULL
++nfs_idmap_get_desc_42990 nfs_idmap_get_desc 4-2 42990 NULL nohasharray
++rtw_os_xmit_resource_alloc_42990 rtw_os_xmit_resource_alloc 3 42990 &nfs_idmap_get_desc_42990
++xfs_da_read_buf_43008 xfs_da_read_buf 0 43008 NULL
++isr_rx_mem_overflow_read_43025 isr_rx_mem_overflow_read 3 43025 NULL
++wep_default_key_count_read_43035 wep_default_key_count_read 3 43035 NULL
++nouveau_gpuobj_create__43072 nouveau_gpuobj_create_ 9 43072 NULL
++nfs_map_group_to_gid_43082 nfs_map_group_to_gid 3 43082 NULL
++_xfer_secondary_pool_43089 _xfer_secondary_pool 2 43089 NULL
++sysfs_create_file_ns_43103 sysfs_create_file_ns 0 43103 NULL
++ieee80211_if_fmt_drop_unencrypted_43107 ieee80211_if_fmt_drop_unencrypted 3 43107 NULL
++calculate_node_totalpages_43118 calculate_node_totalpages 2-3 43118 NULL
++read_file_dfs_43145 read_file_dfs 3 43145 NULL
++gfs2_dir_write_stuffed_43147 gfs2_dir_write_stuffed 0-4 43147 NULL
++cfs_cpt_table_alloc_43159 cfs_cpt_table_alloc 1 43159 NULL
++usb_string_sub_43164 usb_string_sub 0 43164 NULL
++il_dbgfs_power_save_status_read_43165 il_dbgfs_power_save_status_read 3 43165 NULL
++ath6kl_set_assoc_req_ies_43185 ath6kl_set_assoc_req_ies 3 43185 NULL
++ext4_xattr_ibody_get_43200 ext4_xattr_ibody_get 0 43200 NULL
++uio_write_43202 uio_write 3 43202 NULL
++iso_callback_43208 iso_callback 3 43208 NULL
++ath10k_p2p_calc_noa_ie_len_43209 ath10k_p2p_calc_noa_ie_len 0 43209 NULL
++f2fs_acl_from_disk_43210 f2fs_acl_from_disk 2 43210 NULL
++atomic_long_add_return_43217 atomic_long_add_return 1-0 43217 NULL
++inode_init_always_43225 inode_init_always 0 43225 NULL
++batadv_tt_tvlv_unicast_handler_v1_43239 batadv_tt_tvlv_unicast_handler_v1 5 43239 NULL
++vmemmap_alloc_block_43245 vmemmap_alloc_block 1 43245 NULL
++ide_end_rq_43269 ide_end_rq 4 43269 NULL
++nilfs_direct_IO_43271 nilfs_direct_IO 4 43271 NULL
++parport_pc_ecp_write_block_pio_43278 parport_pc_ecp_write_block_pio 3 43278 NULL nohasharray
++evtchn_write_43278 evtchn_write 3 43278 &parport_pc_ecp_write_block_pio_43278
++filemap_write_and_wait_range_43279 filemap_write_and_wait_range 0 43279 NULL
++mpage_alloc_43299 mpage_alloc 3 43299 NULL
++mmu_set_spte_43327 mmu_set_spte 6-7 43327 NULL
++__ext4_get_inode_loc_43332 __ext4_get_inode_loc 0 43332 NULL
++xfs_log_regrant_43350 xfs_log_regrant 0 43350 NULL
++gfs2_rgrp_bh_get_43375 gfs2_rgrp_bh_get 0 43375 NULL
++xfs_btree_new_iroot_43392 xfs_btree_new_iroot 0 43392 NULL
++xenfb_write_43412 xenfb_write 3 43412 NULL
++ext4_xattr_check_names_43422 ext4_xattr_check_names 0 43422 NULL
++__alloc_bootmem_low_43423 __alloc_bootmem_low 1 43423 NULL
++usb_alloc_urb_43436 usb_alloc_urb 1 43436 NULL
++cifs_writev_43437 cifs_writev 4 43437 NULL
++ath6kl_wmi_roam_tbl_event_rx_43440 ath6kl_wmi_roam_tbl_event_rx 3 43440 NULL
++usb_string_43443 usb_string 0 43443 NULL nohasharray
++usemap_size_43443 usemap_size 0-2-1 43443 &usb_string_43443
++get_vm_area_size_43444 get_vm_area_size 0 43444 NULL
++nvme_trans_device_id_page_43466 nvme_trans_device_id_page 4 43466 NULL
++tx_tx_data_prepared_read_43497 tx_tx_data_prepared_read 3 43497 NULL
++ieee80211_if_fmt_dot11MeshHWMPnetDiameterTraversalTime_43505 ieee80211_if_fmt_dot11MeshHWMPnetDiameterTraversalTime 3 43505 NULL
++do_readlink_43518 do_readlink 2 43518 NULL
++dvb_ca_en50221_io_write_43533 dvb_ca_en50221_io_write 3 43533 NULL
++read_events_43534 read_events 3 43534 NULL
++cachefiles_daemon_write_43535 cachefiles_daemon_write 3 43535 NULL
++tx_frag_failed_read_43540 tx_frag_failed_read 3 43540 NULL
++request_resource_43548 request_resource 0 43548 NULL
++rpc_malloc_43573 rpc_malloc 2 43573 NULL
++handle_frequent_errors_43599 handle_frequent_errors 4 43599 NULL
++lpfc_idiag_drbacc_read_reg_43606 lpfc_idiag_drbacc_read_reg 0-3 43606 NULL
++proc_read_43614 proc_read 3 43614 NULL
++disable_dma_on_even_43618 disable_dma_on_even 0 43618 NULL
++alloc_thread_groups_43625 alloc_thread_groups 2 43625 NULL
++random_write_43656 random_write 3 43656 NULL
++bio_integrity_tag_43658 bio_integrity_tag 3 43658 NULL
++ext4_acl_count_43659 ext4_acl_count 0-1 43659 NULL
++write_file_tx99_power_43670 write_file_tx99_power 3 43670 NULL
++dmam_declare_coherent_memory_43679 dmam_declare_coherent_memory 4 43679 NULL
++max77693_bulk_write_43698 max77693_bulk_write 2-3 43698 NULL
++drbd_md_first_sector_43729 drbd_md_first_sector 0 43729 NULL
++snd_rme32_playback_copy_43732 snd_rme32_playback_copy 5 43732 NULL
++fuse_conn_congestion_threshold_write_43736 fuse_conn_congestion_threshold_write 3 43736 NULL
++gigaset_initcs_43753 gigaset_initcs 2 43753 NULL
++sctp_setsockopt_active_key_43755 sctp_setsockopt_active_key 3 43755 NULL
++xfs_alloc_lookup_eq_43775 xfs_alloc_lookup_eq 0 43775 NULL
++ocfs2_xattr_get_value_outside_43787 ocfs2_xattr_get_value_outside 0 43787 NULL nohasharray
++byte_pos_43787 byte_pos 0-2 43787 &ocfs2_xattr_get_value_outside_43787
++xfs_trans_reserve_quota_bydquots_43797 xfs_trans_reserve_quota_bydquots 0 43797 NULL
++btrfs_copy_from_user_43806 btrfs_copy_from_user 0-3-1 43806 NULL
++_xfs_filestream_update_ag_43824 _xfs_filestream_update_ag 0 43824 NULL
++ieee80211_if_fmt_element_ttl_43825 ieee80211_if_fmt_element_ttl 3 43825 NULL
++ieee80211_alloc_hw_43829 ieee80211_alloc_hw 1 43829 NULL
++read_flush_43851 read_flush 3 43851 NULL
++pm860x_bulk_write_43875 pm860x_bulk_write 2-3 43875 NULL
++SendString_43928 SendString 3 43928 NULL
++stats_dot11RTSFailureCount_read_43948 stats_dot11RTSFailureCount_read 3 43948 NULL
++xfs_trans_dqresv_43960 xfs_trans_dqresv 0 43960 NULL
++__get_required_blob_size_43980 __get_required_blob_size 0-3-2 43980 NULL
++nla_reserve_43984 nla_reserve 3 43984 NULL
++__clkdev_alloc_43990 __clkdev_alloc 1 43990 NULL
++scsi_command_size_43992 scsi_command_size 0 43992 NULL nohasharray
++kvm_read_guest_virt_43992 kvm_read_guest_virt 4-2 43992 &scsi_command_size_43992 nohasharray
++bcm_recvmsg_43992 bcm_recvmsg 4 43992 &kvm_read_guest_virt_43992
++ulist_add_43994 ulist_add 0 43994 NULL
++emit_flags_44006 emit_flags 4-3 44006 NULL
++write_flush_procfs_44011 write_flush_procfs 3 44011 NULL
++fru_strlen_44046 fru_strlen 0 44046 NULL
++ath9k_def_dump_modal_eeprom_44078 ath9k_def_dump_modal_eeprom 3-2-0 44078 NULL
++SYSC_add_key_44079 SYSC_add_key 4 44079 NULL
++pci_msix_vec_count_44093 pci_msix_vec_count 0 44093 NULL nohasharray
++__vxge_hw_vpath_tim_configure_44093 __vxge_hw_vpath_tim_configure 2 44093 &pci_msix_vec_count_44093
++xlog_recover_add_to_cont_trans_44102 xlog_recover_add_to_cont_trans 4 44102 NULL
++skb_frag_dma_map_44112 skb_frag_dma_map 0 44112 NULL
++file_remove_suid_44122 file_remove_suid 0 44122 NULL nohasharray
++tracing_set_trace_read_44122 tracing_set_trace_read 3 44122 &file_remove_suid_44122
++SyS_process_vm_writev_44129 SyS_process_vm_writev 3-5 44129 NULL
++ttm_get_pages_44142 ttm_get_pages 2 44142 NULL
++scsi_get_resid_44147 scsi_get_resid 0 44147 NULL
++ocfs2_xattr_bucket_find_44174 ocfs2_xattr_bucket_find 0 44174 NULL
++SYSC_set_mempolicy_44176 SYSC_set_mempolicy 3 44176 NULL
++readreg_ipac_44186 readreg_ipac 0 44186 NULL
++handle_eviocgbit_44193 handle_eviocgbit 3 44193 NULL
++srp_alloc_iu_44227 srp_alloc_iu 2 44227 NULL
++scsi_track_queue_full_44239 scsi_track_queue_full 2 44239 NULL
++sigma_action_write_regmap_44240 sigma_action_write_regmap 3 44240 NULL
++apei_resources_sub_44252 apei_resources_sub 0 44252 NULL
++device_create_file_44285 device_create_file 0 44285 NULL
++ath6kl_keepalive_read_44303 ath6kl_keepalive_read 3 44303 NULL
++bitmap_scnprintf_44318 bitmap_scnprintf 0-2 44318 NULL
++dispatch_proc_write_44320 dispatch_proc_write 3 44320 NULL
++ccp_init_data_44324 ccp_init_data 5 44324 NULL
++rs_init_44327 rs_init 1 44327 NULL
++radix_tree_maybe_preload_44346 radix_tree_maybe_preload 0 44346 NULL
++blk_queue_init_tags_44355 blk_queue_init_tags 2 44355 NULL nohasharray
++nfs_fscache_get_super_cookie_44355 nfs_fscache_get_super_cookie 3 44355 &blk_queue_init_tags_44355
++alloc_requests_44372 alloc_requests 0 44372 NULL
++rts_threshold_read_44384 rts_threshold_read 3 44384 NULL
++mtip_hw_read_flags_44396 mtip_hw_read_flags 3 44396 NULL
++aoedev_flush_44398 aoedev_flush 2 44398 NULL
++strlcpy_44400 strlcpy 3 44400 NULL
++drm_buffer_alloc_44405 drm_buffer_alloc 2 44405 NULL
++osst_do_scsi_44410 osst_do_scsi 4 44410 NULL
++ieee80211_if_read_rc_rateidx_mcs_mask_5ghz_44423 ieee80211_if_read_rc_rateidx_mcs_mask_5ghz 3 44423 NULL
++xfs_mod_incore_sb_44439 xfs_mod_incore_sb 0 44439 NULL
++write_file_debug_44476 write_file_debug 3 44476 NULL
++btrfs_chunk_item_size_44478 btrfs_chunk_item_size 0-1 44478 NULL
++sdio_align_size_44489 sdio_align_size 0-2 44489 NULL
++bio_advance_44496 bio_advance 2 44496 NULL
++ieee80211_if_read_dropped_frames_ttl_44500 ieee80211_if_read_dropped_frames_ttl 3 44500 NULL
++ac_register_board_44504 ac_register_board 3 44504 NULL
++security_getprocattr_44505 security_getprocattr 0 44505 NULL nohasharray
++iwl_dbgfs_sram_read_44505 iwl_dbgfs_sram_read 3 44505 &security_getprocattr_44505
++spidev_write_44510 spidev_write 3 44510 NULL
++SyS_io_getevents_44519 SyS_io_getevents 3 44519 NULL
++ieee80211_rx_mgmt_assoc_resp_44525 ieee80211_rx_mgmt_assoc_resp 3 44525 NULL
++comm_write_44537 comm_write 3 44537 NULL
++dgrp_config_proc_write_44571 dgrp_config_proc_write 3 44571 NULL
++btrfs_set_extent_delalloc_44587 btrfs_set_extent_delalloc 0 44587 NULL
++nouveau_perfmon_create__44602 nouveau_perfmon_create_ 4 44602 NULL
++xfs_bmapi_delay_44630 xfs_bmapi_delay 0 44630 NULL
++alloc_ctrl_packet_44667 alloc_ctrl_packet 1 44667 NULL
++mpi_resize_44674 mpi_resize 2 44674 NULL
++sysfs_create_link_44685 sysfs_create_link 0 44685 NULL
++ts_read_44687 ts_read 3 44687 NULL
++lov_emerg_alloc_44698 lov_emerg_alloc 1 44698 NULL
++xfer_to_user_44713 xfer_to_user 3 44713 NULL nohasharray
++__generic_block_fiemap_44713 __generic_block_fiemap 4 44713 &xfer_to_user_44713
++_zd_iowrite32v_locked_44725 _zd_iowrite32v_locked 3 44725 NULL
++clusterip_proc_write_44729 clusterip_proc_write 3 44729 NULL
++fib_count_nexthops_44730 fib_count_nexthops 0 44730 NULL
++key_tx_rx_count_read_44742 key_tx_rx_count_read 3 44742 NULL
++bch_bio_max_sectors_44755 bch_bio_max_sectors 0 44755 NULL
++tnode_new_44757 tnode_new 3 44757 NULL nohasharray
++pty_write_44757 pty_write 3 44757 &tnode_new_44757
++__videobuf_copy_stream_44769 __videobuf_copy_stream 4-0 44769 NULL
++handsfree_ramp_44777 handsfree_ramp 2 44777 NULL
++irq_domain_add_legacy_44781 irq_domain_add_legacy 4-2 44781 NULL
++sctp_setsockopt_44788 sctp_setsockopt 5 44788 NULL
++rx_dropped_read_44799 rx_dropped_read 3 44799 NULL
++qla4xxx_alloc_work_44813 qla4xxx_alloc_work 2 44813 NULL
++mei_cl_read_start_44824 mei_cl_read_start 2 44824 NULL
++rmap_write_protect_44833 rmap_write_protect 2 44833 NULL
++sisusb_write_44834 sisusb_write 3 44834 NULL
++kvm_read_hva_44847 kvm_read_hva 3 44847 NULL
++qib_verbs_send_dma_44850 qib_verbs_send_dma 6 44850 NULL
++copydesc_user_44855 copydesc_user 3 44855 NULL
++set_advertising_44870 set_advertising 4 44870 NULL
++init_rs_44873 init_rs 1 44873 NULL
++skb_availroom_44883 skb_availroom 0 44883 NULL
++ocfs2_wait_for_mask_44893 ocfs2_wait_for_mask 0 44893 NULL
++do_tty_write_44896 do_tty_write 5 44896 NULL
++regmap_spi_read_44921 regmap_spi_read 3-5 44921 NULL
++tx_queue_status_read_44978 tx_queue_status_read 3 44978 NULL
++bytepos_delta_45017 bytepos_delta 0-2 45017 NULL
++ptrace_writedata_45021 ptrace_writedata 4 45021 NULL
++dm_kvzalloc_45025 dm_kvzalloc 1 45025 NULL
++sysfs_do_create_link_sd_45057 sysfs_do_create_link_sd 0 45057 NULL
++sel_write_user_45060 sel_write_user 3 45060 NULL
++snd_mixart_BA0_read_45069 snd_mixart_BA0_read 5 45069 NULL
++kvm_mmu_page_get_gfn_45110 kvm_mmu_page_get_gfn 0-2 45110 NULL
++pwr_missing_bcns_cnt_read_45113 pwr_missing_bcns_cnt_read 3 45113 NULL
++usbdev_read_45114 usbdev_read 3 45114 NULL
++send_to_tty_45141 send_to_tty 3 45141 NULL
++cfs_trace_daemon_command_usrstr_45147 cfs_trace_daemon_command_usrstr 2 45147 NULL
++gen_bitmask_string_45149 gen_bitmask_string 6 45149 NULL
++device_write_45156 device_write 3 45156 NULL nohasharray
++ocfs2_remove_inode_range_45156 ocfs2_remove_inode_range 3-4 45156 &device_write_45156
++tomoyo_write_self_45161 tomoyo_write_self 3 45161 NULL
++sta_agg_status_write_45164 sta_agg_status_write 3 45164 NULL
++snd_sb_csp_load_user_45190 snd_sb_csp_load_user 3 45190 NULL nohasharray
++sctp_pack_cookie_45190 sctp_pack_cookie 6 45190 &snd_sb_csp_load_user_45190
++__radix_tree_preload_45197 __radix_tree_preload 0 45197 NULL
++iso_alloc_urb_45206 iso_alloc_urb 4-5 45206 NULL
++spi_alloc_master_45223 spi_alloc_master 2 45223 NULL
++ieee80211_if_read_peer_45233 ieee80211_if_read_peer 3 45233 NULL
++event_enable_write_45238 event_enable_write 3 45238 NULL
++prism2_pda_proc_read_45246 prism2_pda_proc_read 3 45246 NULL
++input_mt_init_slots_45279 input_mt_init_slots 2 45279 NULL
++gfs2_fiemap_45282 gfs2_fiemap 4 45282 NULL
++snd_pcm_oss_sync1_45298 snd_pcm_oss_sync1 2 45298 NULL
++xfs_alert_fsblock_zero_45304 xfs_alert_fsblock_zero 0 45304 NULL
++e1000_tx_map_45309 e1000_tx_map 5 45309 NULL
++copy_vm86_regs_from_user_45340 copy_vm86_regs_from_user 3 45340 NULL
++brcmf_sdio_died_dump_45359 brcmf_sdio_died_dump 3 45359 NULL
++null_alloc_repbuf_45375 null_alloc_repbuf 3 45375 NULL
++sock_recv_errqueue_45412 sock_recv_errqueue 3 45412 NULL
++ieee80211_if_fmt_dot11MeshHWMProotInterval_45421 ieee80211_if_fmt_dot11MeshHWMProotInterval 3 45421 NULL
++ll_iocontrol_register_45430 ll_iocontrol_register 2 45430 NULL
++tty_buffer_alloc_45437 tty_buffer_alloc 2 45437 NULL
++__node_remap_45458 __node_remap 4 45458 NULL
++rds_ib_set_wr_signal_state_45463 rds_ib_set_wr_signal_state 0 45463 NULL
++tracing_read_dyn_info_45468 tracing_read_dyn_info 3 45468 NULL
++__calc_request_pg_45470 __calc_request_pg 0 45470 NULL
++xfs_btree_block_change_owner_45476 xfs_btree_block_change_owner 0 45476 NULL
++rds_message_copy_from_user_45510 rds_message_copy_from_user 3 45510 NULL
++i40e_alloc_vfs_45511 i40e_alloc_vfs 2 45511 NULL
++copy_macs_45534 copy_macs 4 45534 NULL
++nla_attr_size_45545 nla_attr_size 0-1 45545 NULL
++v9fs_direct_read_45546 v9fs_direct_read 3 45546 NULL
++cx18_copy_mdl_to_user_45549 cx18_copy_mdl_to_user 4 45549 NULL
++stats_dot11ACKFailureCount_read_45558 stats_dot11ACKFailureCount_read 3 45558 NULL
++_regmap_bus_raw_write_45559 _regmap_bus_raw_write 2 45559 NULL
++posix_acl_xattr_size_45561 posix_acl_xattr_size 0-1 45561 NULL
++venus_rmdir_45564 venus_rmdir 4 45564 NULL
++ath6kl_keepalive_write_45600 ath6kl_keepalive_write 3 45600 NULL
++hidraw_get_report_45609 hidraw_get_report 3 45609 NULL
++compat_mpctl_ioctl_45671 compat_mpctl_ioctl 2 45671 NULL
++dgram_sendmsg_45679 dgram_sendmsg 4 45679 NULL
++smk_write_ambient_45691 smk_write_ambient 3 45691 NULL
++unix_dgram_sendmsg_45699 unix_dgram_sendmsg 4 45699 NULL nohasharray
++bscnl_emit_45699 bscnl_emit 2-5-0 45699 &unix_dgram_sendmsg_45699
++sg_proc_write_adio_45704 sg_proc_write_adio 3 45704 NULL
++sk_forced_wmem_schedule_45721 sk_forced_wmem_schedule 2 45721 NULL
++snd_cs46xx_io_read_45734 snd_cs46xx_io_read 5 45734 NULL nohasharray
++task_cgroup_path_45734 task_cgroup_path 3 45734 &snd_cs46xx_io_read_45734
++rw_copy_check_uvector_45748 rw_copy_check_uvector 3-0 45748 NULL nohasharray
++v4l2_ctrl_new_std_45748 v4l2_ctrl_new_std 5 45748 &rw_copy_check_uvector_45748
++lkdtm_debugfs_read_45752 lkdtm_debugfs_read 3 45752 NULL
++alloc_ts_config_45775 alloc_ts_config 1 45775 NULL
++osc_checksum_type_seq_write_45785 osc_checksum_type_seq_write 3 45785 NULL
++raw_setsockopt_45800 raw_setsockopt 5 45800 NULL
++rds_tcp_inc_copy_to_user_45804 rds_tcp_inc_copy_to_user 3 45804 NULL
++lbs_rdbbp_read_45805 lbs_rdbbp_read 3 45805 NULL
++pcpu_alloc_alloc_info_45813 pcpu_alloc_alloc_info 1-2 45813 NULL
++ll_max_readahead_mb_seq_write_45815 ll_max_readahead_mb_seq_write 3 45815 NULL
++memcg_update_cache_size_45828 memcg_update_cache_size 2 45828 NULL
++ipv6_recv_rxpmtu_45830 ipv6_recv_rxpmtu 3 45830 NULL
++insert_state_45848 insert_state 0 45848 NULL
++x509_process_extension_45854 x509_process_extension 5 45854 NULL
++efx_tx_queue_insert_45859 efx_tx_queue_insert 2 45859 NULL
++isdn_write_45863 isdn_write 3 45863 NULL
++tpm_config_in_45880 tpm_config_in 0 45880 NULL
++get_rdac_req_45882 get_rdac_req 3 45882 NULL
++ocfs2_xattr_block_find_45891 ocfs2_xattr_block_find 0 45891 NULL
++cfs_cpt_weight_45903 cfs_cpt_weight 0 45903 NULL
++wm_adsp_region_to_reg_45915 wm_adsp_region_to_reg 0-2 45915 NULL
++dbgfs_frame_45917 dbgfs_frame 3 45917 NULL
++btree_keys_cachelines_45928 btree_keys_cachelines 0 45928 NULL
++alloc_mr_45935 alloc_mr 1 45935 NULL
++copy_to_45969 copy_to 3 45969 NULL
++rb_simple_read_45972 rb_simple_read 3 45972 NULL
++ioat2_dca_count_dca_slots_45984 ioat2_dca_count_dca_slots 0 45984 NULL
++kobject_init_and_add_46003 kobject_init_and_add 0 46003 NULL
++sierra_setup_urb_46029 sierra_setup_urb 5 46029 NULL
++fnic_reset_stats_read_46030 fnic_reset_stats_read 3 46030 NULL nohasharray
++get_free_entries_46030 get_free_entries 1 46030 &fnic_reset_stats_read_46030
++__access_remote_vm_46031 __access_remote_vm 0 46031 NULL
++snd_emu10k1x_ptr_read_46049 snd_emu10k1x_ptr_read 0 46049 NULL
++__ocfs2_move_extent_46060 __ocfs2_move_extent 3-4 46060 NULL nohasharray
++dma_tx_errors_read_46060 dma_tx_errors_read 3 46060 &__ocfs2_move_extent_46060
++sel_commit_bools_write_46077 sel_commit_bools_write 3 46077 NULL
++il3945_ucode_general_stats_read_46111 il3945_ucode_general_stats_read 3 46111 NULL nohasharray
++memcg_update_array_size_46111 memcg_update_array_size 1 46111 &il3945_ucode_general_stats_read_46111
++C_SYSC_writev_46113 C_SYSC_writev 3 46113 NULL
++mlx4_ib_alloc_fast_reg_page_list_46119 mlx4_ib_alloc_fast_reg_page_list 2 46119 NULL
++rtw_buf_update_46138 rtw_buf_update 4 46138 NULL
++vb2_dma_sg_get_userptr_46146 vb2_dma_sg_get_userptr 3-2 46146 NULL
++__netlink_change_ngroups_46156 __netlink_change_ngroups 2 46156 NULL
++twl_direction_out_46182 twl_direction_out 2 46182 NULL
++vxge_os_dma_malloc_46184 vxge_os_dma_malloc 2 46184 NULL
++fq_resize_46195 fq_resize 2 46195 NULL
++add_conn_list_46197 add_conn_list 3-0 46197 NULL
++i2400m_op_msg_from_user_46213 i2400m_op_msg_from_user 4 46213 NULL
++tm6000_i2c_recv_regs_46215 tm6000_i2c_recv_regs 5 46215 NULL
++dsp_write_46218 dsp_write 2 46218 NULL
++hash_netiface4_expire_46226 hash_netiface4_expire 4 46226 NULL
++xen_setup_msi_irqs_46245 xen_setup_msi_irqs 2 46245 NULL
++mpi_read_raw_data_46248 mpi_read_raw_data 2 46248 NULL
++ReadReg_46277 ReadReg 0 46277 NULL
++sg_proc_write_dressz_46316 sg_proc_write_dressz 3 46316 NULL
++__hwahc_dev_set_key_46328 __hwahc_dev_set_key 5 46328 NULL nohasharray
++compat_SyS_readv_46328 compat_SyS_readv 3 46328 &__hwahc_dev_set_key_46328
++iwl_dbgfs_chain_noise_read_46355 iwl_dbgfs_chain_noise_read 3 46355 NULL
++smk_write_direct_46363 smk_write_direct 3 46363 NULL
++fuse_file_aio_write_46399 fuse_file_aio_write 4 46399 NULL
++crypto_ablkcipher_reqsize_46411 crypto_ablkcipher_reqsize 0 46411 NULL
++ttm_page_pool_get_pages_46431 ttm_page_pool_get_pages 0-5 46431 NULL
++cfs_power2_roundup_46433 cfs_power2_roundup 0-1 46433 NULL
++cp210x_set_config_46447 cp210x_set_config 4 46447 NULL
++parport_pc_fifo_write_block_46455 parport_pc_fifo_write_block 3 46455 NULL
++il_dbgfs_clear_traffic_stats_write_46458 il_dbgfs_clear_traffic_stats_write 3 46458 NULL
++filldir64_46469 filldir64 3 46469 NULL
++fill_in_write_vector_46498 fill_in_write_vector 0 46498 NULL
++pin_code_reply_46510 pin_code_reply 4 46510 NULL
++mthca_alloc_cq_buf_46512 mthca_alloc_cq_buf 3 46512 NULL
++kmsg_read_46514 kmsg_read 3 46514 NULL nohasharray
++nouveau_drm_ioctl_46514 nouveau_drm_ioctl 2 46514 &kmsg_read_46514
++nl80211_send_rx_assoc_46538 nl80211_send_rx_assoc 4 46538 NULL
++dn_current_mss_46574 dn_current_mss 0 46574 NULL
++serverworks_create_gatt_pages_46582 serverworks_create_gatt_pages 1 46582 NULL
++snd_compr_write_data_46592 snd_compr_write_data 3 46592 NULL
++il3945_stats_flag_46606 il3945_stats_flag 0-3 46606 NULL
++vscnprintf_46617 vscnprintf 0-2 46617 NULL
++__kfifo_out_r_46623 __kfifo_out_r 3-0 46623 NULL
++request_key_async_with_auxdata_46624 request_key_async_with_auxdata 4 46624 NULL
++pci_enable_device_46642 pci_enable_device 0 46642 NULL
++vfs_getxattr_alloc_46649 vfs_getxattr_alloc 0 46649 NULL
++e1000_tx_map_46672 e1000_tx_map 4 46672 NULL
++l2cap_create_le_flowctl_pdu_46682 l2cap_create_le_flowctl_pdu 3 46682 NULL
++alloc_data_packet_46698 alloc_data_packet 1 46698 NULL
++__ilog2_u32_46706 __ilog2_u32 0 46706 NULL
++erst_dbg_write_46715 erst_dbg_write 3 46715 NULL
++wl1271_rx_filter_alloc_field_46721 wl1271_rx_filter_alloc_field 5 46721 NULL
++irq_domain_add_simple_46734 irq_domain_add_simple 2 46734 NULL
++read_file_tx99_46741 read_file_tx99 3 46741 NULL
++ext4_count_free_46754 ext4_count_free 2 46754 NULL
++hest_ghes_dev_register_46766 hest_ghes_dev_register 1 46766 NULL
++int_hw_irq_en_46776 int_hw_irq_en 3 46776 NULL
++_xfs_buf_get_pages_46811 _xfs_buf_get_pages 2 46811 NULL
++xfs_iroot_realloc_46826 xfs_iroot_realloc 2 46826 NULL
++readreg_46845 readreg 0 46845 NULL
++spi_async_46857 spi_async 0 46857 NULL
++SyS_move_pages_46863 SyS_move_pages 2 46863 NULL nohasharray
++vsnprintf_46863 vsnprintf 0 46863 &SyS_move_pages_46863
++nvme_alloc_queue_46865 nvme_alloc_queue 3 46865 NULL
++qp_memcpy_from_queue_iov_46874 qp_memcpy_from_queue_iov 5-4 46874 NULL
++lov_iocontrol_46876 lov_iocontrol 3 46876 NULL
++ixgbe_dbg_reg_ops_write_46895 ixgbe_dbg_reg_ops_write 3 46895 NULL
++sk_mem_pages_46896 sk_mem_pages 0-1 46896 NULL
++ieee80211_if_fmt_power_mode_46906 ieee80211_if_fmt_power_mode 3 46906 NULL
++wlcore_alloc_hw_46917 wlcore_alloc_hw 1-3 46917 NULL
++fb_write_46924 fb_write 3 46924 NULL
++__sctp_setsockopt_connectx_46949 __sctp_setsockopt_connectx 3 46949 NULL
++qla4xxx_post_aen_work_46953 qla4xxx_post_aen_work 3 46953 NULL nohasharray
++ntfs_truncate_46953 ntfs_truncate 0 46953 &qla4xxx_post_aen_work_46953
++SYSC_poll_46965 SYSC_poll 2 46965 NULL
++crypto_tfm_alg_alignmask_46971 crypto_tfm_alg_alignmask 0 46971 NULL
++mgmt_pending_add_46976 mgmt_pending_add 5 46976 NULL
++strlcat_46985 strlcat 3 46985 NULL
++bitmap_file_clear_bit_46990 bitmap_file_clear_bit 2 46990 NULL
++sel_write_bool_46996 sel_write_bool 3 46996 NULL
++blk_rq_map_kern_47004 blk_rq_map_kern 4 47004 NULL
++cx231xx_init_bulk_47024 cx231xx_init_bulk 3-2-4 47024 NULL
++fs_path_len_47060 fs_path_len 0 47060 NULL
++event_trigger_regex_write_47067 event_trigger_regex_write 3 47067 NULL
++ext4_xattr_list_entries_47070 ext4_xattr_list_entries 0 47070 NULL
++pipeline_dec_packet_in_read_47076 pipeline_dec_packet_in_read 3 47076 NULL
++scsi_deactivate_tcq_47086 scsi_deactivate_tcq 2 47086 NULL
++iwl_dump_nic_event_log_47089 iwl_dump_nic_event_log 0 47089 NULL
++ptlrpc_lprocfs_threads_max_seq_write_47104 ptlrpc_lprocfs_threads_max_seq_write 3 47104 NULL
++mousedev_read_47123 mousedev_read 3 47123 NULL
++upcall_msg_size_47141 upcall_msg_size 2 47141 NULL
++acpi_ut_initialize_buffer_47143 acpi_ut_initialize_buffer 2 47143 NULL nohasharray
++ses_recv_diag_47143 ses_recv_diag 4 47143 &acpi_ut_initialize_buffer_47143
++mxms_headerlen_47161 mxms_headerlen 0 47161 NULL
++rs_sta_dbgfs_rate_scale_data_read_47165 rs_sta_dbgfs_rate_scale_data_read 3 47165 NULL
++rts51x_ms_rw_47171 rts51x_ms_rw 3-4 47171 NULL
++xfs_btree_get_buf_block_47197 xfs_btree_get_buf_block 0 47197 NULL
++options_write_47243 options_write 3 47243 NULL
++portcntrs_1_read_47253 portcntrs_1_read 3 47253 NULL
++ablkcipher_next_slow_47274 ablkcipher_next_slow 4-3 47274 NULL
++gfs2_readpages_47285 gfs2_readpages 4 47285 NULL
++vsnprintf_47291 vsnprintf 0 47291 NULL
++SYSC_semop_47292 SYSC_semop 3 47292 NULL
++tx_internal_desc_overflow_read_47300 tx_internal_desc_overflow_read 3 47300 NULL
++xfs_trans_reserve_quota_nblks_47313 xfs_trans_reserve_quota_nblks 0 47313 NULL
++nouveau_fb_create__47316 nouveau_fb_create_ 4 47316 NULL
++ieee80211_if_read_dot11MeshHoldingTimeout_47356 ieee80211_if_read_dot11MeshHoldingTimeout 3 47356 NULL
++gfs2_replay_read_block_47357 gfs2_replay_read_block 0 47357 NULL
++avc_get_hash_stats_47359 avc_get_hash_stats 0 47359 NULL
++kvm_arch_create_memslot_47364 kvm_arch_create_memslot 3 47364 NULL nohasharray
++__output_copy_user_47364 __output_copy_user 3 47364 &kvm_arch_create_memslot_47364
++__bio_map_kern_47379 __bio_map_kern 3 47379 NULL
++trace_options_core_read_47390 trace_options_core_read 3 47390 NULL nohasharray
++nv_rd32_47390 nv_rd32 0 47390 &trace_options_core_read_47390
++nametbl_list_47391 nametbl_list 2 47391 NULL
++dgrp_net_write_47392 dgrp_net_write 3 47392 NULL
++pfkey_sendmsg_47394 pfkey_sendmsg 4 47394 NULL
++lbs_wrmac_write_47400 lbs_wrmac_write 3 47400 NULL
++sta_vht_capa_read_47409 sta_vht_capa_read 3 47409 NULL
++crypto_ablkcipher_alignmask_47410 crypto_ablkcipher_alignmask 0 47410 NULL
++lbs_wrrf_write_47418 lbs_wrrf_write 3 47418 NULL
++nvme_trans_send_fw_cmd_47479 nvme_trans_send_fw_cmd 4 47479 NULL
++newpart_47485 newpart 6-4 47485 NULL
++core_sys_select_47494 core_sys_select 1 47494 NULL
++alloc_arraycache_47505 alloc_arraycache 2 47505 NULL
++unlink_simple_47506 unlink_simple 3 47506 NULL
++pstore_decompress_47510 pstore_decompress 0 47510 NULL
++__proc_lnet_portal_rotor_47529 __proc_lnet_portal_rotor 5 47529 NULL
++process_vm_rw_47533 process_vm_rw 3-5 47533 NULL nohasharray
++vscnprintf_47533 vscnprintf 0-2 47533 &process_vm_rw_47533
++einj_check_trigger_header_47534 einj_check_trigger_header 0 47534 NULL
++ieee80211_if_fmt_min_discovery_timeout_47539 ieee80211_if_fmt_min_discovery_timeout 3 47539 NULL
++read_ldt_47570 read_ldt 2 47570 NULL
++isku_sysfs_read_last_set_47572 isku_sysfs_read_last_set 6 47572 NULL
++btrfs_stack_header_bytenr_47589 btrfs_stack_header_bytenr 0 47589 NULL
++ext4_kvzalloc_47605 ext4_kvzalloc 1 47605 NULL
++sctp_ssnmap_new_47608 sctp_ssnmap_new 2-1 47608 NULL
++cache_read_pipefs_47615 cache_read_pipefs 3 47615 NULL
++twl4030_clear_set_47624 twl4030_clear_set 4 47624 NULL
++ccp_sha_setkey_47633 ccp_sha_setkey 3 47633 NULL
++get_size_47644 get_size 1-2 47644 NULL
++packet_recvmsg_47700 packet_recvmsg 4 47700 NULL nohasharray
++ipath_format_hwmsg_47700 ipath_format_hwmsg 2 47700 &packet_recvmsg_47700
++save_microcode_47717 save_microcode 3 47717 NULL
++bits_to_user_47733 bits_to_user 2-3 47733 NULL
++carl9170_debugfs_read_47738 carl9170_debugfs_read 3 47738 NULL
++ir_prepare_write_buffer_47747 ir_prepare_write_buffer 3 47747 NULL
++mvumi_alloc_mem_resource_47750 mvumi_alloc_mem_resource 3 47750 NULL
++alloc_sched_domains_47756 alloc_sched_domains 1 47756 NULL
++uwb_ie_dump_hex_47774 uwb_ie_dump_hex 4 47774 NULL
++SyS_setgroups16_47780 SyS_setgroups16 1 47780 NULL
++error_error_numll_frame_cts_start_read_47781 error_error_numll_frame_cts_start_read 3 47781 NULL
++posix_acl_fix_xattr_from_user_47793 posix_acl_fix_xattr_from_user 2 47793 NULL
++W6692_empty_Bfifo_47804 W6692_empty_Bfifo 2 47804 NULL
++lov_packmd_47810 lov_packmd 0 47810 NULL
++tree_mod_log_insert_move_47823 tree_mod_log_insert_move 5 47823 NULL
++pinconf_dbg_config_write_47835 pinconf_dbg_config_write 3 47835 NULL
++KEY_SIZE_47855 KEY_SIZE 0 47855 NULL
++vhci_read_47878 vhci_read 3 47878 NULL
++keyctl_instantiate_key_common_47889 keyctl_instantiate_key_common 4 47889 NULL
++cfs_percpt_alloc_47918 cfs_percpt_alloc 2 47918 NULL
++comedi_write_47926 comedi_write 3 47926 NULL
++nvme_trans_get_blk_desc_len_47946 nvme_trans_get_blk_desc_len 0-2 47946 NULL
++gether_get_ifname_47972 gether_get_ifname 3 47972 NULL
++mempool_resize_47983 mempool_resize 2 47983 NULL nohasharray
++iwl_dbgfs_ucode_tracing_read_47983 iwl_dbgfs_ucode_tracing_read 3 47983 &mempool_resize_47983
++dbg_port_buf_47990 dbg_port_buf 2 47990 NULL
++ib_umad_write_47993 ib_umad_write 3 47993 NULL
++lustre_cfg_len_48002 lustre_cfg_len 0 48002 NULL
++gdm_tty_recv_complete_48011 gdm_tty_recv_complete 2 48011 NULL
++ffs_epfile_write_48014 ffs_epfile_write 3 48014 NULL
++bio_integrity_set_tag_48035 bio_integrity_set_tag 3 48035 NULL
++pppoe_sendmsg_48039 pppoe_sendmsg 4 48039 NULL
++SYSC_writev_48040 SYSC_writev 3 48040 NULL
++wpan_phy_alloc_48056 wpan_phy_alloc 1 48056 NULL
++posix_acl_alloc_48063 posix_acl_alloc 1 48063 NULL
++palmas_bulk_write_48068 palmas_bulk_write 2-3-5 48068 NULL
++disc_write_48070 disc_write 3 48070 NULL
++mmc_alloc_host_48097 mmc_alloc_host 1 48097 NULL
++xfs_read_agi_48100 xfs_read_agi 0 48100 NULL
++skb_copy_datagram_const_iovec_48102 skb_copy_datagram_const_iovec 4-2-5 48102 NULL
++vmw_framebuffer_surface_dirty_48132 vmw_framebuffer_surface_dirty 6 48132 NULL
++set_discoverable_48141 set_discoverable 4 48141 NULL
++dn_fib_count_nhs_48145 dn_fib_count_nhs 0 48145 NULL
++_add_to_r4w_48152 _add_to_r4w 4 48152 NULL
++isr_dma1_done_read_48159 isr_dma1_done_read 3 48159 NULL
++c4iw_id_table_alloc_48163 c4iw_id_table_alloc 3 48163 NULL
++rbd_obj_method_sync_48170 rbd_obj_method_sync 8 48170 NULL
++alloc_cc770dev_48186 alloc_cc770dev 1 48186 NULL
++cfg80211_process_deauth_48200 cfg80211_process_deauth 3 48200 NULL
++ext4_index_trans_blocks_48205 ext4_index_trans_blocks 0-2 48205 NULL
++snd_seq_dump_var_event_48209 snd_seq_dump_var_event 0 48209 NULL
++ll_direct_IO_26_48216 ll_direct_IO_26 4 48216 NULL
++uv_blade_nr_possible_cpus_48226 uv_blade_nr_possible_cpus 0 48226 NULL
++nilfs_readpages_48229 nilfs_readpages 4 48229 NULL
++read_file_recv_48232 read_file_recv 3 48232 NULL
++unaccount_shadowed_48233 unaccount_shadowed 2 48233 NULL
++nouveau_i2c_port_create__48240 nouveau_i2c_port_create_ 7 48240 NULL
++nfsctl_transaction_read_48250 nfsctl_transaction_read 3 48250 NULL
++batadv_socket_read_48257 batadv_socket_read 3 48257 NULL
++cache_write_pipefs_48270 cache_write_pipefs 3 48270 NULL
++trace_options_write_48275 trace_options_write 3 48275 NULL
++send_set_info_48288 send_set_info 7 48288 NULL
++lpfc_idiag_extacc_read_48301 lpfc_idiag_extacc_read 3 48301 NULL
++timblogiw_read_48305 timblogiw_read 3 48305 NULL
++hash_setkey_48310 hash_setkey 3 48310 NULL
++kvm_mmu_pte_write_48340 kvm_mmu_pte_write 2 48340 NULL
++skb_add_data_48363 skb_add_data 3 48363 NULL
++tx_frag_init_called_read_48377 tx_frag_init_called_read 3 48377 NULL
++lbs_debugfs_write_48413 lbs_debugfs_write 3 48413 NULL
++uhid_event_from_user_48417 uhid_event_from_user 2 48417 NULL
++div64_u64_rem_48418 div64_u64_rem 0-1-2 48418 NULL
++pwr_tx_without_ps_read_48423 pwr_tx_without_ps_read 3 48423 NULL
++print_filtered_48442 print_filtered 2-0 48442 NULL
++tun_recvmsg_48463 tun_recvmsg 4 48463 NULL
++compat_SyS_preadv64_48469 compat_SyS_preadv64 3 48469 NULL
++ipath_format_hwerrors_48487 ipath_format_hwerrors 5 48487 NULL
++r8712_usbctrl_vendorreq_48489 r8712_usbctrl_vendorreq 6 48489 NULL
++ocfs2_refcount_cow_48495 ocfs2_refcount_cow 3 48495 NULL
++send_control_msg_48498 send_control_msg 6 48498 NULL
++count_masked_bytes_48507 count_masked_bytes 0-1 48507 NULL
++diva_os_copy_to_user_48508 diva_os_copy_to_user 4 48508 NULL
++brcmf_sdio_trap_info_48510 brcmf_sdio_trap_info 4 48510 NULL
++phantom_get_free_48514 phantom_get_free 0 48514 NULL
++drbd_bm_capacity_48530 drbd_bm_capacity 0 48530 NULL
++raid10_size_48571 raid10_size 0-2-3 48571 NULL
++llog_data_len_48607 llog_data_len 1 48607 NULL
++do_ip_vs_set_ctl_48641 do_ip_vs_set_ctl 4 48641 NULL
++ll_rw_extents_stats_pp_seq_write_48651 ll_rw_extents_stats_pp_seq_write 3 48651 NULL
++mtd_read_48655 mtd_read 0 48655 NULL
++aes_encrypt_packets_read_48666 aes_encrypt_packets_read 3 48666 NULL
++sm501_create_subdev_48668 sm501_create_subdev 3-4 48668 NULL
++security_inode_setattr_48689 security_inode_setattr 0 48689 NULL
++hysdn_log_write_48694 hysdn_log_write 3 48694 NULL
++altera_drscan_48698 altera_drscan 2 48698 NULL
++kvm_set_irq_routing_48704 kvm_set_irq_routing 3 48704 NULL
++recv_msg_48709 recv_msg 4 48709 NULL
++lpfc_idiag_drbacc_write_48712 lpfc_idiag_drbacc_write 3 48712 NULL
++SyS_lgetxattr_48719 SyS_lgetxattr 4 48719 NULL
++ath6kl_usb_bmi_read_48745 ath6kl_usb_bmi_read 3 48745 NULL
++ath6kl_regwrite_read_48747 ath6kl_regwrite_read 3 48747 NULL
++l2cap_segment_sdu_48772 l2cap_segment_sdu 4 48772 NULL
++gfs2_direct_IO_48774 gfs2_direct_IO 4 48774 NULL
++il3945_sta_dbgfs_stats_table_read_48802 il3945_sta_dbgfs_stats_table_read 3 48802 NULL
++twa_change_queue_depth_48808 twa_change_queue_depth 2 48808 NULL
++atomic_counters_read_48827 atomic_counters_read 3 48827 NULL
++azx_get_position_48841 azx_get_position 0 48841 NULL
++vc_do_resize_48842 vc_do_resize 3-4 48842 NULL
++comedi_buf_write_alloc_48846 comedi_buf_write_alloc 0-2 48846 NULL
++suspend_dtim_interval_write_48854 suspend_dtim_interval_write 3 48854 NULL
++C_SYSC_pwritev64_48864 C_SYSC_pwritev64 3 48864 NULL nohasharray
++viafb_dvp1_proc_write_48864 viafb_dvp1_proc_write 3 48864 &C_SYSC_pwritev64_48864
++__ffs_ep0_read_events_48868 __ffs_ep0_read_events 3 48868 NULL
++crypto_cipher_ctxsize_48890 crypto_cipher_ctxsize 0 48890 NULL
++joydev_handle_JSIOCSAXMAP_48898 joydev_handle_JSIOCSAXMAP 3 48898 NULL
++xdi_copy_to_user_48900 xdi_copy_to_user 4 48900 NULL
++msg_hdr_sz_48908 msg_hdr_sz 0 48908 NULL
++rts51x_ctrl_transfer_48914 rts51x_ctrl_transfer 8 48914 NULL
++sep_crypto_dma_48937 sep_crypto_dma 0 48937 NULL
++si5351_write_parameters_48940 si5351_write_parameters 2 48940 NULL
++event_heart_beat_read_48961 event_heart_beat_read 3 48961 NULL
++nand_ecc_test_run_48966 nand_ecc_test_run 1 48966 NULL
++vmci_handle_arr_create_48971 vmci_handle_arr_create 1 48971 NULL
++xfs_trans_commit_48982 xfs_trans_commit 0 48982 NULL
++gfs2_dir_add_48987 gfs2_dir_add 0 48987 NULL
++rds_rm_size_48996 rds_rm_size 0-2 48996 NULL
++sel_write_enforce_48998 sel_write_enforce 3 48998 NULL
++null_alloc_rs_49019 null_alloc_rs 2 49019 NULL
++filemap_check_errors_49022 filemap_check_errors 0 49022 NULL
++transient_status_49027 transient_status 4 49027 NULL
++ll_xattr_cache_add_49032 ll_xattr_cache_add 4-0 49032 NULL
++iwl_mvm_power_legacy_dbgfs_read_49038 iwl_mvm_power_legacy_dbgfs_read 4 49038 NULL
++scsi_register_49094 scsi_register 2 49094 NULL
++compat_do_readv_writev_49102 compat_do_readv_writev 4 49102 NULL
++gfs2_diradd_alloc_required_49105 gfs2_diradd_alloc_required 0 49105 NULL
++xfrm_replay_state_esn_len_49119 xfrm_replay_state_esn_len 0 49119 NULL
++ll_max_cached_mb_seq_write_49122 ll_max_cached_mb_seq_write 3 49122 NULL
++pt_read_49136 pt_read 3 49136 NULL
++ipwireless_tty_received_49154 ipwireless_tty_received 3 49154 NULL
++f2fs_acl_count_49155 f2fs_acl_count 0-1 49155 NULL
++ipw_queue_tx_init_49161 ipw_queue_tx_init 3 49161 NULL
++__jfs_setxattr_49175 __jfs_setxattr 5 49175 NULL
++ath6kl_bgscan_int_write_49178 ath6kl_bgscan_int_write 3 49178 NULL
++dvb_dvr_ioctl_49182 dvb_dvr_ioctl 2 49182 NULL
++print_queue_49191 print_queue 4-0 49191 NULL
++root_nfs_cat_49192 root_nfs_cat 3 49192 NULL
++iwl_dbgfs_ucode_general_stats_read_49199 iwl_dbgfs_ucode_general_stats_read 3 49199 NULL
++il4965_rs_sta_dbgfs_stats_table_read_49206 il4965_rs_sta_dbgfs_stats_table_read 3 49206 NULL
++do_jffs2_getxattr_49210 do_jffs2_getxattr 0 49210 NULL
++nouveau_therm_create__49228 nouveau_therm_create_ 4 49228 NULL
++ieee80211_if_read_rssi_threshold_49260 ieee80211_if_read_rssi_threshold 3 49260 NULL
++isku_sysfs_read_keys_media_49268 isku_sysfs_read_keys_media 6 49268 NULL
++ptlrpc_check_set_49277 ptlrpc_check_set 0 49277 NULL
++rx_filter_beacon_filter_read_49279 rx_filter_beacon_filter_read 3 49279 NULL
++viafb_dfph_proc_write_49288 viafb_dfph_proc_write 3 49288 NULL
++uio_read_49300 uio_read 3 49300 NULL
++isku_sysfs_read_keys_macro_49312 isku_sysfs_read_keys_macro 6 49312 NULL
++SYSC_mincore_49319 SYSC_mincore 2-1 49319 NULL
++fwtty_port_handler_49327 fwtty_port_handler 9 49327 NULL
++srpt_alloc_ioctx_ring_49330 srpt_alloc_ioctx_ring 2-4-3 49330 NULL
++joydev_ioctl_common_49359 joydev_ioctl_common 2 49359 NULL
++iscsi_alloc_session_49390 iscsi_alloc_session 3 49390 NULL
++ext4_ext_index_trans_blocks_49396 ext4_ext_index_trans_blocks 0 49396 NULL
++rx_streaming_always_read_49401 rx_streaming_always_read 3 49401 NULL
++tnode_alloc_49407 tnode_alloc 1 49407 NULL
++samples_to_bytes_49426 samples_to_bytes 0-2 49426 NULL
++compat_do_msg_fill_49440 compat_do_msg_fill 3 49440 NULL
++__hfsplus_getxattr_49460 __hfsplus_getxattr 0 49460 NULL
++agp_3_5_isochronous_node_enable_49465 agp_3_5_isochronous_node_enable 3 49465 NULL
++xfs_iformat_local_49472 xfs_iformat_local 4-0 49472 NULL
++isr_decrypt_done_read_49490 isr_decrypt_done_read 3 49490 NULL
++iwl_dbgfs_disable_power_off_read_49517 iwl_dbgfs_disable_power_off_read 3 49517 NULL
++SyS_listxattr_49519 SyS_listxattr 3 49519 NULL
++emulator_write_phys_49520 emulator_write_phys 2-4 49520 NULL
++smk_write_access_49561 smk_write_access 3 49561 NULL
++alloc_chunk_49575 alloc_chunk 1 49575 NULL
++sctp_setsockopt_default_send_param_49578 sctp_setsockopt_default_send_param 3 49578 NULL
++readfifo_49583 readfifo 1 49583 NULL
++gfs2_quota_lock_49587 gfs2_quota_lock 0 49587 NULL
++evm_inode_setattr_49594 evm_inode_setattr 0 49594 NULL
++tap_write_49595 tap_write 3 49595 NULL
++isr_wakeups_read_49607 isr_wakeups_read 3 49607 NULL
++btrfs_mksubvol_49616 btrfs_mksubvol 3 49616 NULL
++heap_init_49617 heap_init 2 49617 NULL
++smk_write_doi_49621 smk_write_doi 3 49621 NULL
++port_fops_read_49626 port_fops_read 3 49626 NULL
++btrfsic_cmp_log_and_dev_bytenr_49628 btrfsic_cmp_log_and_dev_bytenr 2 49628 NULL
++xfs_ialloc_get_rec_49648 xfs_ialloc_get_rec 0 49648 NULL
++aa_simple_write_to_buffer_49683 aa_simple_write_to_buffer 4-3 49683 NULL
++SyS_pwritev_49688 SyS_pwritev 3 49688 NULL
++__copy_from_user_nocheck_49699 __copy_from_user_nocheck 0-3 49699 NULL
++cx2341x_ctrl_new_menu_49700 cx2341x_ctrl_new_menu 3 49700 NULL
++write_pool_49718 write_pool 3 49718 NULL
++kvm_mmu_notifier_invalidate_page_49723 kvm_mmu_notifier_invalidate_page 3 49723 NULL
++sep_create_dcb_dmatables_context_kernel_49728 sep_create_dcb_dmatables_context_kernel 6 49728 NULL
++zd_usb_iowrite16v_49744 zd_usb_iowrite16v 3 49744 NULL
++btrfs_chunk_num_stripes_49751 btrfs_chunk_num_stripes 0 49751 NULL
++fuse_wr_pages_49753 fuse_wr_pages 0-1-2 49753 NULL
++key_conf_keylen_read_49758 key_conf_keylen_read 3 49758 NULL
++fuse_conn_waiting_read_49762 fuse_conn_waiting_read 3 49762 NULL
++w83977af_fir_interrupt_49775 w83977af_fir_interrupt 0 49775 NULL
++ceph_osdc_readpages_49789 ceph_osdc_readpages 0 49789 NULL
++nfs4_acl_new_49806 nfs4_acl_new 1 49806 NULL
++ntfs_copy_from_user_iovec_49829 ntfs_copy_from_user_iovec 3-6-0 49829 NULL
++add_uuid_49831 add_uuid 4 49831 NULL
++iraw_loop_49842 iraw_loop 0-1 49842 NULL
++twl4030_write_49846 twl4030_write 2 49846 NULL
++scsi_dispatch_cmd_entry_49848 scsi_dispatch_cmd_entry 3 49848 NULL
++timeradd_entry_49850 timeradd_entry 3 49850 NULL
++fiemap_count_to_size_49869 fiemap_count_to_size 0-1 49869 NULL
++sctp_setsockopt_bindx_49870 sctp_setsockopt_bindx 3 49870 NULL
++osc_brw_49896 osc_brw 4 49896 NULL
++config_ep_by_speed_49939 config_ep_by_speed 0 49939 NULL
++xfs_ialloc_ag_alloc_49960 xfs_ialloc_ag_alloc 0 49960 NULL
++ieee80211_if_fmt_dtim_count_49987 ieee80211_if_fmt_dtim_count 3 49987 NULL
++drm_buffer_copy_from_user_49990 drm_buffer_copy_from_user 3 49990 NULL
++l2cap_chan_send_49995 l2cap_chan_send 3 49995 NULL
++dn_mss_from_pmtu_50011 dn_mss_from_pmtu 0-2 50011 NULL
++xfs_ialloc_inode_init_50015 xfs_ialloc_inode_init 0 50015 NULL
++security_context_to_sid_50019 security_context_to_sid 2 50019 NULL
++isdn_read_50021 isdn_read 3 50021 NULL
++mdc_rename_pack_50023 mdc_rename_pack 4-6 50023 NULL
++brcmf_debugfs_chipinfo_read_50033 brcmf_debugfs_chipinfo_read 3 50033 NULL
++ioread8_50049 ioread8 0 50049 NULL
++fuse_conn_max_background_write_50061 fuse_conn_max_background_write 3 50061 NULL
++__kfifo_dma_in_prepare_50081 __kfifo_dma_in_prepare 4 50081 NULL
++dev_set_alias_50084 dev_set_alias 3 50084 NULL
++libcfs_ioctl_popdata_50087 libcfs_ioctl_popdata 3 50087 NULL
++sock_setsockopt_50088 sock_setsockopt 5 50088 NULL
++altera_swap_dr_50090 altera_swap_dr 2 50090 NULL
++android_set_cntry_50100 android_set_cntry 0 50100 NULL
++read_file_slot_50111 read_file_slot 3 50111 NULL
++rx_streaming_interval_write_50120 rx_streaming_interval_write 3 50120 NULL
++jfs_direct_IO_50125 jfs_direct_IO 4 50125 NULL
++SYSC_preadv_50134 SYSC_preadv 3 50134 NULL
++tx_frag_need_fragmentation_read_50153 tx_frag_need_fragmentation_read 3 50153 NULL
++xfs_bwrite_50154 xfs_bwrite 0 50154 NULL
++kmalloc_node_50163 kmalloc_node 1 50163 NULL
++rx_filter_ibss_filter_read_50167 rx_filter_ibss_filter_read 3 50167 NULL
++ahd_probe_stack_size_50168 ahd_probe_stack_size 0 50168 NULL
++odev_update_50169 odev_update 2 50169 NULL
++ubi_resize_volume_50172 ubi_resize_volume 2 50172 NULL nohasharray
++ieee80211_if_fmt_dot11MeshHWMPRannInterval_50172 ieee80211_if_fmt_dot11MeshHWMPRannInterval 3 50172 &ubi_resize_volume_50172
++cfg80211_roamed_bss_50198 cfg80211_roamed_bss 4-6 50198 NULL
++cyttsp4_probe_50201 cyttsp4_probe 4 50201 NULL
++rx_rx_timeout_wa_read_50204 rx_rx_timeout_wa_read 3 50204 NULL
++mthca_buddy_init_50206 mthca_buddy_init 2 50206 NULL
++l2cap_sock_setsockopt_50207 l2cap_sock_setsockopt 5 50207 NULL
++mon_bin_compat_ioctl_50234 mon_bin_compat_ioctl 3 50234 NULL
++sg_kmalloc_50240 sg_kmalloc 1 50240 NULL
++rxrpc_setsockopt_50286 rxrpc_setsockopt 5 50286 NULL
++soc_codec_reg_show_50302 soc_codec_reg_show 0-3 50302 NULL
++SYSC_flistxattr_50307 SYSC_flistxattr 3 50307 NULL
++SYSC_sched_setaffinity_50310 SYSC_sched_setaffinity 2 50310 NULL
++soc_camera_read_50319 soc_camera_read 3 50319 NULL
++do_launder_page_50329 do_launder_page 0 50329 NULL
++nouveau_engine_create__50331 nouveau_engine_create_ 7 50331 NULL
++lpfc_idiag_pcicfg_read_50334 lpfc_idiag_pcicfg_read 3 50334 NULL
++snd_pcm_lib_writev_50337 snd_pcm_lib_writev 0-3 50337 NULL
++tpm_read_50344 tpm_read 3 50344 NULL
++rts51x_bulk_transfer_buf_50352 rts51x_bulk_transfer_buf 4 50352 NULL
++isdn_ppp_read_50356 isdn_ppp_read 4 50356 NULL
++iwl_dbgfs_echo_test_write_50362 iwl_dbgfs_echo_test_write 3 50362 NULL
++xfrm_send_migrate_50365 xfrm_send_migrate 5 50365 NULL
++roccat_common2_receive_50369 roccat_common2_receive 4 50369 NULL
++sl_alloc_bufs_50380 sl_alloc_bufs 2 50380 NULL
++l2tp_ip_sendmsg_50411 l2tp_ip_sendmsg 4 50411 NULL
++iscsi_create_conn_50425 iscsi_create_conn 2 50425 NULL
++validate_acl_mac_addrs_50429 validate_acl_mac_addrs 0 50429 NULL
++xfs_alloc_update_counters_50441 xfs_alloc_update_counters 0 50441 NULL
++btrfs_error_discard_extent_50444 btrfs_error_discard_extent 2 50444 NULL
++pgctrl_write_50453 pgctrl_write 3 50453 NULL
++device_create_sys_dev_entry_50458 device_create_sys_dev_entry 0 50458 NULL
++cfs_size_round_50472 cfs_size_round 0-1 50472 NULL
++cdrom_read_cdda_50478 cdrom_read_cdda 4 50478 NULL
++xfs_iformat_extents_50486 xfs_iformat_extents 0 50486 NULL
++gfs2_block_map_50492 gfs2_block_map 0 50492 NULL
++mei_io_cb_alloc_req_buf_50493 mei_io_cb_alloc_req_buf 2 50493 NULL
++pwr_rcvd_awake_beacons_read_50505 pwr_rcvd_awake_beacons_read 3 50505 NULL
++ath6kl_set_ap_probe_resp_ies_50539 ath6kl_set_ap_probe_resp_ies 3 50539 NULL
++bh_get_50543 bh_get 0 50543 NULL
++gfs2_meta_inode_buffer_50544 gfs2_meta_inode_buffer 0 50544 NULL
++usbat_flash_write_data_50553 usbat_flash_write_data 4 50553 NULL
++fat_readpages_50582 fat_readpages 4 50582 NULL
++iwl_dbgfs_missed_beacon_read_50584 iwl_dbgfs_missed_beacon_read 3 50584 NULL
++xillybus_write_50605 xillybus_write 3 50605 NULL
++rx_rx_checksum_result_read_50617 rx_rx_checksum_result_read 3 50617 NULL
++sparse_early_usemaps_alloc_node_50623 sparse_early_usemaps_alloc_node 4 50623 NULL
++simple_transaction_get_50633 simple_transaction_get 3 50633 NULL
++gfs2_unstuff_dinode_50644 gfs2_unstuff_dinode 0 50644 NULL
++ath6kl_tm_rx_event_50664 ath6kl_tm_rx_event 3 50664 NULL
++bnad_debugfs_read_50665 bnad_debugfs_read 3 50665 NULL
++prism2_read_fid_reg_50689 prism2_read_fid_reg 0 50689 NULL
++xfs_growfs_get_hdr_buf_50697 xfs_growfs_get_hdr_buf 3 50697 NULL
++dev_mem_read_50706 dev_mem_read 3 50706 NULL
++blk_check_plugged_50736 blk_check_plugged 3 50736 NULL
++__ext3_get_inode_loc_50744 __ext3_get_inode_loc 0 50744 NULL
++ocfs2_xattr_block_get_50773 ocfs2_xattr_block_get 0 50773 NULL
++tm6000_read_write_usb_50774 tm6000_read_write_usb 7 50774 NULL
++bio_alloc_map_data_50782 bio_alloc_map_data 2 50782 NULL
++tpm_write_50798 tpm_write 3 50798 NULL
++tun_do_read_50800 tun_do_read 4 50800 NULL
++write_flush_50803 write_flush 3 50803 NULL
++dvb_play_50814 dvb_play 3 50814 NULL
++btrfs_stack_file_extent_disk_num_bytes_50825 btrfs_stack_file_extent_disk_num_bytes 0 50825 NULL
++dpcm_show_state_50827 dpcm_show_state 0 50827 NULL
++SetArea_50835 SetArea 4 50835 NULL
++videobuf_dma_init_user_50839 videobuf_dma_init_user 4-3 50839 NULL
++carl9170_debugfs_write_50857 carl9170_debugfs_write 3 50857 NULL
++SyS_lgetxattr_50889 SyS_lgetxattr 4 50889 NULL
++netlbl_secattr_catmap_walk_rng_50894 netlbl_secattr_catmap_walk_rng 0-2 50894 NULL
++__bdev_writeseg_50903 __bdev_writeseg 4 50903 NULL
++xfs_alloc_get_freelist_50906 xfs_alloc_get_freelist 0 50906 NULL
++xfs_iext_remove_50909 xfs_iext_remove 3 50909 NULL
++blk_rq_cur_sectors_50910 blk_rq_cur_sectors 0 50910 NULL
++hash_recvmsg_50924 hash_recvmsg 4 50924 NULL
++chd_dec_fetch_cdata_50926 chd_dec_fetch_cdata 3 50926 NULL
++show_device_status_50947 show_device_status 0 50947 NULL
++irq_timeout_write_50950 irq_timeout_write 3 50950 NULL
++virtio_cread16_50951 virtio_cread16 0 50951 NULL
++sdio_uart_write_50954 sdio_uart_write 3 50954 NULL
++SyS_setxattr_50957 SyS_setxattr 4 50957 NULL
++iwl_statistics_flag_50981 iwl_statistics_flag 0-3 50981 NULL
++timeout_write_50991 timeout_write 3 50991 NULL
++proc_write_51003 proc_write 3 51003 NULL
++jbd2_journal_extend_51012 jbd2_journal_extend 2 51012 NULL
++lbs_dev_info_51023 lbs_dev_info 3 51023 NULL
++fuse_conn_congestion_threshold_read_51028 fuse_conn_congestion_threshold_read 3 51028 NULL
++BcmGetSectionValEndOffset_51039 BcmGetSectionValEndOffset 0 51039 NULL
++dump_midi_51040 dump_midi 3 51040 NULL
++usb_get_descriptor_51041 usb_get_descriptor 0 51041 NULL
++srpt_alloc_ioctx_51042 srpt_alloc_ioctx 2-3 51042 NULL
++do_arpt_set_ctl_51053 do_arpt_set_ctl 4 51053 NULL
++wusb_prf_64_51065 wusb_prf_64 7 51065 NULL
++jbd2_journal_init_revoke_51088 jbd2_journal_init_revoke 2 51088 NULL
++__ocfs2_find_path_51096 __ocfs2_find_path 0 51096 NULL
++ti_recv_51110 ti_recv 3 51110 NULL
++alloc_rtllib_51136 alloc_rtllib 1 51136 NULL
++simple_xattr_set_51140 simple_xattr_set 4 51140 NULL
++xfs_trans_get_efd_51148 xfs_trans_get_efd 3 51148 NULL
++nf_ct_ext_create_51232 nf_ct_ext_create 3 51232 NULL
++snd_pcm_write_51235 snd_pcm_write 3 51235 NULL
++drm_property_create_51239 drm_property_create 4 51239 NULL
++__mxt_read_reg_51249 __mxt_read_reg 0 51249 NULL
++st_read_51251 st_read 3 51251 NULL
++compat_dccp_setsockopt_51263 compat_dccp_setsockopt 5 51263 NULL
++target_alloc_sgl_51264 target_alloc_sgl 3 51264 NULL
++dvb_audio_write_51275 dvb_audio_write 3 51275 NULL
++ipwireless_network_packet_received_51277 ipwireless_network_packet_received 4 51277 NULL
++pvr2_std_id_to_str_51288 pvr2_std_id_to_str 2 51288 NULL
++bnad_debugfs_read_regrd_51308 bnad_debugfs_read_regrd 3 51308 NULL
++init_map_ipmac_51317 init_map_ipmac 5 51317 NULL
++alloc_hippi_dev_51320 alloc_hippi_dev 1 51320 NULL
++ext2_xattr_get_51327 ext2_xattr_get 0 51327 NULL
++alloc_smp_req_51337 alloc_smp_req 1 51337 NULL
++ipw_get_event_log_len_51341 ipw_get_event_log_len 0 51341 NULL
++ieee80211_if_fmt_estab_plinks_51370 ieee80211_if_fmt_estab_plinks 3 51370 NULL
++radeon_kms_compat_ioctl_51371 radeon_kms_compat_ioctl 2 51371 NULL
++blk_register_region_51424 blk_register_region 1-2 51424 NULL
++mwifiex_rdeeprom_read_51429 mwifiex_rdeeprom_read 3 51429 NULL
++hfsplus_brec_read_51436 hfsplus_brec_read 0 51436 NULL
++xfs_mod_incore_sb_unlocked_51439 xfs_mod_incore_sb_unlocked 0 51439 NULL
++ieee80211_if_read_dot11MeshHWMPRootMode_51441 ieee80211_if_read_dot11MeshHWMPRootMode 3 51441 NULL
++print_devstats_dot11ACKFailureCount_51443 print_devstats_dot11ACKFailureCount 3 51443 NULL
++____alloc_ei_netdev_51475 ____alloc_ei_netdev 1 51475 NULL
++xfs_buf_get_uncached_51477 xfs_buf_get_uncached 2 51477 NULL
++kvm_fetch_guest_virt_51493 kvm_fetch_guest_virt 4-2 51493 NULL
++ieee80211_if_write_uapsd_queues_51526 ieee80211_if_write_uapsd_queues 3 51526 NULL
++__alloc_eip_netdev_51549 __alloc_eip_netdev 1 51549 NULL
++batadv_tt_prepare_tvlv_local_data_51568 batadv_tt_prepare_tvlv_local_data 0 51568 NULL
++ixgb_get_eeprom_len_51586 ixgb_get_eeprom_len 0 51586 NULL
++aac_convert_sgraw2_51598 aac_convert_sgraw2 4 51598 NULL
++table_size_to_number_of_entries_51613 table_size_to_number_of_entries 0-1 51613 NULL
++extent_fiemap_51621 extent_fiemap 3 51621 NULL
++sctp_auth_create_key_51641 sctp_auth_create_key 1 51641 NULL
++iscsi_create_session_51647 iscsi_create_session 3 51647 NULL
++xfs_iformat_btree_51651 xfs_iformat_btree 0 51651 NULL
++ps_upsd_utilization_read_51669 ps_upsd_utilization_read 3 51669 NULL
++sctp_setsockopt_associnfo_51684 sctp_setsockopt_associnfo 3 51684 NULL
++host_mapping_level_51696 host_mapping_level 0 51696 NULL
++sel_write_access_51704 sel_write_access 3 51704 NULL
++tty_cdev_add_51714 tty_cdev_add 2-4 51714 NULL
++v9fs_alloc_rdir_buf_51716 v9fs_alloc_rdir_buf 2 51716 NULL
++drm_compat_ioctl_51717 drm_compat_ioctl 2 51717 NULL
++sg_read_oxfer_51724 sg_read_oxfer 3 51724 NULL
++cm4040_read_51732 cm4040_read 3 51732 NULL
++get_user_pages_fast_51751 get_user_pages_fast 0 51751 NULL
++ifx_spi_insert_flip_string_51752 ifx_spi_insert_flip_string 3 51752 NULL
++if_write_51756 if_write 3 51756 NULL
++qib_alloc_devdata_51819 qib_alloc_devdata 2 51819 NULL
++buffer_from_user_51826 buffer_from_user 3 51826 NULL
++ioread32_51847 ioread32 0 51847 NULL nohasharray
++read_file_tgt_tx_stats_51847 read_file_tgt_tx_stats 3 51847 &ioread32_51847
++do_readv_writev_51849 do_readv_writev 4 51849 NULL
++SYSC_sendto_51852 SYSC_sendto 6 51852 NULL
++bm_page_io_async_51858 bm_page_io_async 2 51858 NULL
++pointer_size_read_51863 pointer_size_read 3 51863 NULL
++get_indirect_ea_51869 get_indirect_ea 4 51869 NULL
++user_read_51881 user_read 3 51881 NULL
++dbAdjCtl_51888 dbAdjCtl 0 51888 NULL
++SyS_mq_timedsend_51896 SyS_mq_timedsend 3 51896 NULL
++wmi_set_ie_51919 wmi_set_ie 3 51919 NULL
++dbg_status_buf_51930 dbg_status_buf 2 51930 NULL
++__tcp_mtu_to_mss_51938 __tcp_mtu_to_mss 0-2 51938 NULL
++xfrm_alg_len_51940 xfrm_alg_len 0 51940 NULL
++scsi_get_vpd_page_51951 scsi_get_vpd_page 4 51951 NULL
++snd_mask_min_51969 snd_mask_min 0 51969 NULL
++__blkdev_get_51972 __blkdev_get 0 51972 NULL
++get_zone_51981 get_zone 0-1 51981 NULL
++cifs_strict_writev_51984 cifs_strict_writev 4 51984 NULL
++ath6kl_sdio_alloc_prep_scat_req_51986 ath6kl_sdio_alloc_prep_scat_req 2 51986 NULL
++_c4iw_write_mem_dma_51991 _c4iw_write_mem_dma 3 51991 NULL
++dwc3_mode_write_51997 dwc3_mode_write 3 51997 NULL
++skb_copy_datagram_from_iovec_52014 skb_copy_datagram_from_iovec 4-2-5 52014 NULL
++rdmalt_52022 rdmalt 0 52022 NULL
++override_release_52032 override_release 2 52032 NULL
++end_port_52042 end_port 0 52042 NULL
++dma_rx_errors_read_52045 dma_rx_errors_read 3 52045 NULL
++msnd_fifo_write_52052 msnd_fifo_write 0-3 52052 NULL
++dvb_ringbuffer_avail_52057 dvb_ringbuffer_avail 0 52057 NULL
++__fuse_request_alloc_52060 __fuse_request_alloc 1 52060 NULL
++isofs_readpages_52067 isofs_readpages 4 52067 NULL
++mxuport_process_read_urb_data_52072 mxuport_process_read_urb_data 3 52072 NULL
++nsm_get_handle_52089 nsm_get_handle 4 52089 NULL
++ulist_add_merge_52096 ulist_add_merge 0 52096 NULL
++o2net_debug_read_52105 o2net_debug_read 3 52105 NULL
++smsdvb_stats_read_52114 smsdvb_stats_read 3 52114 NULL
++split_scan_timeout_write_52128 split_scan_timeout_write 3 52128 NULL
++retry_count_read_52129 retry_count_read 3 52129 NULL
++xfs_btree_change_owner_52137 xfs_btree_change_owner 0 52137 NULL
++gdm_usb_hci_send_52138 gdm_usb_hci_send 3 52138 NULL
++sub_alloc_52140 sub_alloc 0 52140 NULL
++hysdn_conf_write_52145 hysdn_conf_write 3 52145 NULL
++htable_size_52148 htable_size 0-1 52148 NULL
++gfs2_rs_alloc_52152 gfs2_rs_alloc 0 52152 NULL
++smk_write_load2_52155 smk_write_load2 3 52155 NULL
++ieee80211_if_read_dot11MeshRetryTimeout_52168 ieee80211_if_read_dot11MeshRetryTimeout 3 52168 NULL
++mga_compat_ioctl_52170 mga_compat_ioctl 2 52170 NULL
++print_prefix_52176 print_prefix 0 52176 NULL
++proc_pid_readlink_52186 proc_pid_readlink 3 52186 NULL
++reiserfs_posix_acl_from_disk_52191 reiserfs_posix_acl_from_disk 2 52191 NULL
++vmci_qp_broker_alloc_52216 vmci_qp_broker_alloc 6-5 52216 NULL
++fuse_request_alloc_52243 fuse_request_alloc 1 52243 NULL nohasharray
++xfs_iomap_eof_align_last_fsb_52243 xfs_iomap_eof_align_last_fsb 0 52243 &fuse_request_alloc_52243
++mdiobus_alloc_size_52259 mdiobus_alloc_size 1 52259 NULL
++shrink_slab_52261 shrink_slab 2 52261 NULL
++sisusbcon_do_font_op_52271 sisusbcon_do_font_op 9 52271 NULL
++handle_supp_msgs_52284 handle_supp_msgs 4 52284 NULL
++kobject_set_name_vargs_52309 kobject_set_name_vargs 0 52309 NULL
++read_file_reset_52310 read_file_reset 3 52310 NULL
++request_asymmetric_key_52317 request_asymmetric_key 2-4 52317 NULL
++hwflags_read_52318 hwflags_read 3 52318 NULL
++test_unaligned_bulk_52333 test_unaligned_bulk 3 52333 NULL
++hur_len_52339 hur_len 0 52339 NULL
++bytes_to_frames_52362 bytes_to_frames 0-2 52362 NULL nohasharray
++cap_inode_killpriv_52362 cap_inode_killpriv 0 52362 &bytes_to_frames_52362
++copy_entries_to_user_52367 copy_entries_to_user 1 52367 NULL
++iwl_dump_fh_52371 iwl_dump_fh 0 52371 NULL
++hfsplus_find_attr_52374 hfsplus_find_attr 0 52374 NULL
++mq_emit_config_values_52378 mq_emit_config_values 3 52378 NULL
++isdn_writebuf_stub_52383 isdn_writebuf_stub 4 52383 NULL
++jfs_setxattr_52389 jfs_setxattr 4 52389 NULL
++aer_inject_write_52399 aer_inject_write 3 52399 NULL
++cgroup_file_write_52417 cgroup_file_write 3 52417 NULL
++line6_midibuf_init_52425 line6_midibuf_init 2 52425 NULL
++hso_serial_common_create_52428 hso_serial_common_create 4 52428 NULL
++delay_status_52431 delay_status 5 52431 NULL
++ath6kl_delete_qos_write_52435 ath6kl_delete_qos_write 3 52435 NULL
++ieee80211_if_fmt_num_sta_ps_52438 ieee80211_if_fmt_num_sta_ps 3 52438 NULL
++acpi_nvs_for_each_region_52448 acpi_nvs_for_each_region 0 52448 NULL
++alauda_read_data_52452 alauda_read_data 3 52452 NULL
++ieee80211_alloc_txb_52477 ieee80211_alloc_txb 1 52477 NULL
++usb_tranzport_write_52479 usb_tranzport_write 3 52479 NULL
++ocfs2_extend_no_holes_52483 ocfs2_extend_no_holes 3-4 52483 NULL
++fd_do_rw_52495 fd_do_rw 3 52495 NULL
++int_tasklet_entry_52500 int_tasklet_entry 3 52500 NULL
++xfs_alloc_get_rec_52502 xfs_alloc_get_rec 0 52502 NULL
++lmv_get_easize_52504 lmv_get_easize 0 52504 NULL
++pm_qos_power_write_52513 pm_qos_power_write 3 52513 NULL
++bt_sock_stream_recvmsg_52518 bt_sock_stream_recvmsg 4 52518 NULL
++dup_variable_bug_52525 dup_variable_bug 3 52525 NULL
++raw_recvmsg_52529 raw_recvmsg 4 52529 NULL
++dccpprobe_read_52549 dccpprobe_read 3 52549 NULL
++ntfs_prepare_pages_for_non_resident_write_52556 ntfs_prepare_pages_for_non_resident_write 0 52556 NULL
++debug_level_proc_write_52572 debug_level_proc_write 3 52572 NULL
++kernfs_setattr_52583 kernfs_setattr 0 52583 NULL
++isku_sysfs_read_macro_52587 isku_sysfs_read_macro 6 52587 NULL
++SyS_setsockopt_52610 SyS_setsockopt 5 52610 NULL
++ll_sa_entry_alloc_52611 ll_sa_entry_alloc 4 52611 NULL
++tps80031_writes_52638 tps80031_writes 3-4 52638 NULL
++brcmf_sdio_assert_info_52653 brcmf_sdio_assert_info 4 52653 NULL
++nvme_queue_extra_52661 nvme_queue_extra 0-1 52661 NULL
++SYSC_gethostname_52677 SYSC_gethostname 2 52677 NULL
++nvd0_disp_pioc_create__52693 nvd0_disp_pioc_create_ 5 52693 NULL
++ms_transfer_data_52705 ms_transfer_data 9 52705 NULL
++nouveau_client_create__52715 nouveau_client_create_ 5 52715 NULL
++__dm_stat_bio_52722 __dm_stat_bio 3 52722 NULL
++cx25840_ir_rx_read_52724 cx25840_ir_rx_read 3 52724 NULL
++blkcipher_next_slow_52733 blkcipher_next_slow 3-4 52733 NULL
++relay_alloc_page_array_52735 relay_alloc_page_array 1 52735 NULL
++hfcsusb_rx_frame_52745 hfcsusb_rx_frame 3 52745 NULL
++carl9170_debugfs_vif_dump_read_52755 carl9170_debugfs_vif_dump_read 3 52755 NULL
++ieee80211_if_read_beacon_timeout_52756 ieee80211_if_read_beacon_timeout 3 52756 NULL
++nvme_trans_ext_inq_page_52776 nvme_trans_ext_inq_page 3 52776 NULL
++pwr_rcvd_beacons_read_52836 pwr_rcvd_beacons_read 3 52836 NULL
++lb_alloc_ep_req_52837 lb_alloc_ep_req 2 52837 NULL
++mon_bin_get_event_52863 mon_bin_get_event 4-6 52863 NULL
++twl6030_gpadc_write_52867 twl6030_gpadc_write 1 52867 NULL
++qib_decode_6120_err_52876 qib_decode_6120_err 3 52876 NULL
++twlreg_write_52880 twlreg_write 3 52880 NULL
++pvr2_ctrl_value_to_sym_internal_52881 pvr2_ctrl_value_to_sym_internal 5 52881 NULL
++cache_read_procfs_52882 cache_read_procfs 3 52882 NULL
++kvm_kvzalloc_52894 kvm_kvzalloc 1 52894 NULL
++dio_bio_reap_52913 dio_bio_reap 0 52913 NULL
++__kfifo_out_peek_r_52919 __kfifo_out_peek_r 3 52919 NULL
++iblock_get_bio_52936 iblock_get_bio 3 52936 NULL
++__nodes_remap_52951 __nodes_remap 5 52951 NULL
++send_packet_52960 send_packet 4 52960 NULL
++ieee80211_if_fmt_fwded_mcast_52961 ieee80211_if_fmt_fwded_mcast 3 52961 NULL
++tx_tx_exch_read_52986 tx_tx_exch_read 3 52986 NULL
++num_node_state_52989 num_node_state 0 52989 NULL
++btrfs_free_and_pin_reserved_extent_53016 btrfs_free_and_pin_reserved_extent 2 53016 NULL
++tx_tx_exch_pending_read_53018 tx_tx_exch_pending_read 3 53018 NULL
++xfs_rtfree_extent_53024 xfs_rtfree_extent 0 53024 NULL
++bio_cur_bytes_53037 bio_cur_bytes 0 53037 NULL
++regcache_lzo_block_count_53056 regcache_lzo_block_count 0 53056 NULL
++cfi_read_query_53066 cfi_read_query 0 53066 NULL
++iwl_dbgfs_interrupt_write_53069 iwl_dbgfs_interrupt_write 3 53069 NULL
++mwifiex_debug_read_53074 mwifiex_debug_read 3 53074 NULL
++mic_virtio_copy_from_user_53107 mic_virtio_copy_from_user 3 53107 NULL
++verity_status_53120 verity_status 5 53120 NULL
++brcmf_usb_dl_cmd_53130 brcmf_usb_dl_cmd 4 53130 NULL
++inode_newsize_ok_53140 inode_newsize_ok 0 53140 NULL nohasharray
++ps_poll_ps_poll_max_ap_turn_read_53140 ps_poll_ps_poll_max_ap_turn_read 3 53140 &inode_newsize_ok_53140
++ieee80211_bss_info_update_53170 ieee80211_bss_info_update 4 53170 NULL
++btrfs_io_bio_alloc_53179 btrfs_io_bio_alloc 2 53179 NULL
++find_good_lh_53183 find_good_lh 0 53183 NULL
++clear_capture_buf_53192 clear_capture_buf 2 53192 NULL
++xfs_btree_updkey_53195 xfs_btree_updkey 0 53195 NULL
++tx_tx_start_data_read_53219 tx_tx_start_data_read 3 53219 NULL
++ptlrpc_lprocfs_req_history_max_seq_write_53243 ptlrpc_lprocfs_req_history_max_seq_write 3 53243 NULL
++xfs_trans_read_buf_map_53258 xfs_trans_read_buf_map 5-0 53258 NULL
++wil_write_file_ssid_53266 wil_write_file_ssid 3 53266 NULL
++btrfs_file_extent_num_bytes_53269 btrfs_file_extent_num_bytes 0 53269 NULL
++ftrace_profile_write_53327 ftrace_profile_write 3 53327 NULL
++find_nr_power_limit_53330 find_nr_power_limit 0 53330 NULL
++gsm_control_reply_53333 gsm_control_reply 4 53333 NULL
++btree_keys_bytes_53348 btree_keys_bytes 0 53348 NULL
++read_6120_creg32_53363 read_6120_creg32 0 53363 NULL
++sock_setbindtodevice_53369 sock_setbindtodevice 3 53369 NULL
++get_random_bytes_arch_53370 get_random_bytes_arch 2 53370 NULL
++xfs_imap_53389 xfs_imap 0 53389 NULL
++isr_cmd_cmplt_read_53439 isr_cmd_cmplt_read 3 53439 NULL
++mwifiex_info_read_53447 mwifiex_info_read 3 53447 NULL
++apei_exec_run_optional_53452 apei_exec_run_optional 0 53452 NULL
++paging64_prefetch_gpte_53468 paging64_prefetch_gpte 4 53468 NULL
++ima_write_template_field_data_53475 ima_write_template_field_data 2 53475 NULL nohasharray
++create_trace_kprobe_53475 create_trace_kprobe 1 53475 &ima_write_template_field_data_53475
++iowarrior_read_53483 iowarrior_read 3 53483 NULL
++osd_req_write_kern_53486 osd_req_write_kern 5 53486 NULL
++do_verify_xattr_datum_53499 do_verify_xattr_datum 0 53499 NULL
++snd_pcm_format_physical_width_53505 snd_pcm_format_physical_width 0 53505 NULL
++dbAllocNext_53506 dbAllocNext 0 53506 NULL
++check_acl_53512 check_acl 0 53512 NULL
++ll_xattr_cache_update_53515 ll_xattr_cache_update 4 53515 NULL
++nft_data_dump_53549 nft_data_dump 5 53549 NULL
++SYSC_bind_53582 SYSC_bind 3 53582 NULL
++cifs_utf16_bytes_53593 cifs_utf16_bytes 0 53593 NULL
++proc_uid_map_write_53596 proc_uid_map_write 3 53596 NULL
++pfkey_recvmsg_53604 pfkey_recvmsg 4 53604 NULL
++___alloc_bootmem_nopanic_53626 ___alloc_bootmem_nopanic 1 53626 NULL
++xd_write_multiple_pages_53633 xd_write_multiple_pages 6-5 53633 NULL
++ccid_getsockopt_builtin_ccids_53634 ccid_getsockopt_builtin_ccids 2 53634 NULL
++nr_sendmsg_53656 nr_sendmsg 4 53656 NULL
++fuse_fill_write_pages_53682 fuse_fill_write_pages 0-4 53682 NULL
++v4l2_event_subscribe_53687 v4l2_event_subscribe 3 53687 NULL
++bdev_logical_block_size_53690 bdev_logical_block_size 0 53690 NULL nohasharray
++igb_alloc_q_vector_53690 igb_alloc_q_vector 4-6 53690 &bdev_logical_block_size_53690
++find_overflow_devnum_53711 find_overflow_devnum 0 53711 NULL
++__proc_debug_mb_53732 __proc_debug_mb 5 53732 NULL
++wdm_write_53735 wdm_write 3 53735 NULL
++amdtp_out_stream_get_max_payload_53755 amdtp_out_stream_get_max_payload 0 53755 NULL nohasharray
++lpfc_idiag_queacc_read_qe_53755 lpfc_idiag_queacc_read_qe 0-2 53755 &amdtp_out_stream_get_max_payload_53755
++wa_populate_buf_in_urb_53758 wa_populate_buf_in_urb 3-4 53758 NULL
++ext2_acl_count_53773 ext2_acl_count 0-1 53773 NULL
++__kfifo_dma_in_prepare_r_53792 __kfifo_dma_in_prepare_r 4-5 53792 NULL
++qp_alloc_host_work_53798 qp_alloc_host_work 5-3 53798 NULL
++regmap_raw_write_53803 regmap_raw_write 2-4 53803 NULL
++lpfc_idiag_ctlacc_read_reg_53809 lpfc_idiag_ctlacc_read_reg 0-3 53809 NULL
++nls_nullsize_53815 nls_nullsize 0 53815 NULL
++setup_data_read_53822 setup_data_read 3 53822 NULL
++pms_read_53873 pms_read 3 53873 NULL
++ieee80211_if_fmt_dropped_frames_congestion_53883 ieee80211_if_fmt_dropped_frames_congestion 3 53883 NULL
++SyS_setgroups_53900 SyS_setgroups 1 53900 NULL
++posix_acl_chmod_53904 posix_acl_chmod 0 53904 NULL
++batadv_tt_tvlv_ogm_handler_v1_53909 batadv_tt_tvlv_ogm_handler_v1 5 53909 NULL
++usb_serial_generic_write_53927 usb_serial_generic_write 4 53927 NULL
++ocfs2_make_clusters_writable_53938 ocfs2_make_clusters_writable 0 53938 NULL
++idetape_chrdev_write_53976 idetape_chrdev_write 3 53976 NULL
++__ocfs2_xattr_set_value_outside_53981 __ocfs2_xattr_set_value_outside 5 53981 NULL
++ieee80211_if_fmt_dot11MeshHWMPperrMinInterval_53998 ieee80211_if_fmt_dot11MeshHWMPperrMinInterval 3 53998 NULL
++hfsplus_attr_build_key_54013 hfsplus_attr_build_key 0 54013 NULL
++snd_pcm_lib_write_transfer_54018 snd_pcm_lib_write_transfer 5-2-4 54018 NULL
++mdc_kuc_write_54019 mdc_kuc_write 3 54019 NULL
++ipxrtr_route_packet_54036 ipxrtr_route_packet 4 54036 NULL
++batadv_tt_update_orig_54049 batadv_tt_update_orig 6-4 54049 NULL
++pipeline_dec_packet_out_read_54052 pipeline_dec_packet_out_read 3 54052 NULL
++nl80211_send_disconnected_54056 nl80211_send_disconnected 5 54056 NULL
++rproc_state_read_54057 rproc_state_read 3 54057 NULL
++_malloc_54077 _malloc 1 54077 NULL
++bitmap_bitremap_54096 bitmap_bitremap 4 54096 NULL
++altera_set_ir_pre_54103 altera_set_ir_pre 2 54103 NULL nohasharray
++lustre_posix_acl_xattr_filter_54103 lustre_posix_acl_xattr_filter 2-0 54103 &altera_set_ir_pre_54103
++__comedi_buf_write_alloc_54112 __comedi_buf_write_alloc 0-2 54112 NULL
++strn_len_54122 strn_len 0 54122 NULL
++isku_receive_54130 isku_receive 4 54130 NULL
++isr_host_acknowledges_read_54136 isr_host_acknowledges_read 3 54136 NULL
++irq_blk_threshold_write_54138 irq_blk_threshold_write 3 54138 NULL
++memcpy_toiovec_54166 memcpy_toiovec 3 54166 NULL
++nouveau_falcon_create__54169 nouveau_falcon_create_ 8 54169 NULL
++p9_client_prepare_req_54175 p9_client_prepare_req 3 54175 NULL
++sd_read_data_54207 sd_read_data 9 54207 NULL
++do_sys_poll_54221 do_sys_poll 2 54221 NULL
++__register_chrdev_54223 __register_chrdev 2-3 54223 NULL
++pi_read_regr_54231 pi_read_regr 0 54231 NULL
++reada_add_block_54247 reada_add_block 2 54247 NULL
++xfs_dir2_sf_addname_hard_54254 xfs_dir2_sf_addname_hard 3 54254 NULL
++ceph_msgpool_get_54258 ceph_msgpool_get 2 54258 NULL
++audio_write_54261 audio_write 4 54261 NULL nohasharray
++wusb_prf_54261 wusb_prf 7 54261 &audio_write_54261
++mwifiex_getlog_read_54269 mwifiex_getlog_read 3 54269 NULL
++kstrtou16_from_user_54274 kstrtou16_from_user 2 54274 NULL
++tipc_multicast_54285 tipc_multicast 4 54285 NULL
++altera_set_dr_post_54291 altera_set_dr_post 2 54291 NULL
++dlm_alloc_pagevec_54296 dlm_alloc_pagevec 1 54296 NULL
++reclaim_pages_54301 reclaim_pages 3 54301 NULL
++sprintf_54306 sprintf 0 54306 NULL
++bio_add_pc_page_54319 bio_add_pc_page 4 54319 NULL
++br_fdb_fillbuf_54339 br_fdb_fillbuf 0 54339 NULL
++__alloc_dev_table_54343 __alloc_dev_table 2 54343 NULL
++__get_free_pages_54352 __get_free_pages 0 54352 NULL
++read_file_credit_dist_stats_54367 read_file_credit_dist_stats 3 54367 NULL
++vfs_readlink_54368 vfs_readlink 3 54368 NULL
++do_dccp_setsockopt_54377 do_dccp_setsockopt 5 54377 NULL nohasharray
++intel_sdvo_write_cmd_54377 intel_sdvo_write_cmd 4 54377 &do_dccp_setsockopt_54377
++ah_alloc_tmp_54378 ah_alloc_tmp 3-2 54378 NULL
++snd_pcm_oss_read2_54387 snd_pcm_oss_read2 3-0 54387 NULL
++iwl_dbgfs_power_save_status_read_54392 iwl_dbgfs_power_save_status_read 3 54392 NULL
++ll_ra_count_get_54410 ll_ra_count_get 3 54410 NULL
++copy_gadget_strings_54417 copy_gadget_strings 2-3 54417 NULL
++sparse_early_mem_maps_alloc_node_54485 sparse_early_mem_maps_alloc_node 4 54485 NULL
++simple_strtoull_54493 simple_strtoull 0 54493 NULL
++btrfs_ordered_sum_size_54509 btrfs_ordered_sum_size 0-2 54509 NULL
++rfc4106_set_key_54519 rfc4106_set_key 3 54519 NULL
++vmci_transport_dgram_enqueue_54525 vmci_transport_dgram_enqueue 4 54525 NULL
++viacam_read_54526 viacam_read 3 54526 NULL
++unix_dgram_connect_54535 unix_dgram_connect 3 54535 NULL
++setsockopt_54539 setsockopt 5 54539 NULL
++lbs_lowsnr_write_54549 lbs_lowsnr_write 3 54549 NULL
++SYSC_setsockopt_54561 SYSC_setsockopt 5 54561 NULL
++rts51x_seq_read_register_54567 rts51x_seq_read_register 3 54567 NULL
++nfsd_vfs_write_54577 nfsd_vfs_write 6 54577 NULL
++fw_iso_buffer_init_54582 fw_iso_buffer_init 3 54582 NULL
++nvme_npages_54601 nvme_npages 0-1 54601 NULL
++irq_pkt_threshold_write_54605 irq_pkt_threshold_write 3 54605 NULL
++port_fops_write_54627 port_fops_write 3 54627 NULL
++irq_timeout_read_54653 irq_timeout_read 3 54653 NULL
++dns_resolver_read_54658 dns_resolver_read 3 54658 NULL
++twl6030_interrupt_mask_54659 twl6030_interrupt_mask 2 54659 NULL
++tdp_page_fault_54663 tdp_page_fault 2 54663 NULL
++bus_add_device_54665 bus_add_device 0 54665 NULL
++cw1200_queue_stats_init_54670 cw1200_queue_stats_init 2 54670 NULL
++bio_kmalloc_54672 bio_kmalloc 2 54672 NULL
++evm_read_key_54674 evm_read_key 3 54674 NULL
++tipc_link_send_sections_fast_54689 tipc_link_send_sections_fast 3 54689 NULL
++__btrfs_inc_extent_ref_54706 __btrfs_inc_extent_ref 7 54706 NULL
++rfkill_fop_read_54711 rfkill_fop_read 3 54711 NULL
++ocfs2_control_write_54737 ocfs2_control_write 3 54737 NULL
++kzalloc_54740 kzalloc 1 54740 NULL
++wep_iv_read_54744 wep_iv_read 3 54744 NULL
++lpfc_idiag_pcicfg_write_54749 lpfc_idiag_pcicfg_write 3 54749 NULL
++iio_event_chrdev_read_54757 iio_event_chrdev_read 3 54757 NULL
++adis16480_show_firmware_date_54762 adis16480_show_firmware_date 3 54762 NULL
++ldsem_atomic_update_54774 ldsem_atomic_update 1 54774 NULL
++xfs_rtallocate_extent_block_54791 xfs_rtallocate_extent_block 0 54791 NULL
++flexcop_device_kmalloc_54793 flexcop_device_kmalloc 1 54793 NULL
++nfsd_write_54809 nfsd_write 6 54809 NULL
++ar9287_dump_modal_eeprom_54814 ar9287_dump_modal_eeprom 3-2 54814 NULL
++crypto_tfm_ctx_alignment_54815 crypto_tfm_ctx_alignment 0 54815 NULL nohasharray
++kvzalloc_54815 kvzalloc 1 54815 &crypto_tfm_ctx_alignment_54815 nohasharray
++aes_decrypt_fail_read_54815 aes_decrypt_fail_read 3 54815 &kvzalloc_54815
++generic_perform_write_54832 generic_perform_write 3-0 54832 NULL
++write_rio_54837 write_rio 3 54837 NULL
++ext3_acl_from_disk_54839 ext3_acl_from_disk 2 54839 NULL nohasharray
++nouveau_engctx_create__54839 nouveau_engctx_create_ 8 54839 &ext3_acl_from_disk_54839
++ufx_ops_write_54848 ufx_ops_write 3 54848 NULL
++printer_read_54851 printer_read 3 54851 NULL
++broadsheet_spiflash_rewrite_sector_54864 broadsheet_spiflash_rewrite_sector 2 54864 NULL
++prism_build_supp_rates_54865 prism_build_supp_rates 0 54865 NULL
++xfs_alloc_read_agfl_54879 xfs_alloc_read_agfl 0 54879 NULL
++iscsi_pool_init_54913 iscsi_pool_init 2-4 54913 NULL nohasharray
++kobject_set_name_vargs_54913 kobject_set_name_vargs 0 54913 &iscsi_pool_init_54913
++btrfs_stack_chunk_num_stripes_54923 btrfs_stack_chunk_num_stripes 0 54923 NULL
++bio_add_page_54933 bio_add_page 0-3 54933 NULL
++mxms_structlen_54939 mxms_structlen 0 54939 NULL
++add_port_54941 add_port 2 54941 NULL
++ath9k_dump_btcoex_54949 ath9k_dump_btcoex 3-0 54949 NULL
++alauda_write_data_54967 alauda_write_data 3 54967 NULL
++c4_add_card_54968 c4_add_card 3 54968 NULL
++ext3_xattr_get_54989 ext3_xattr_get 0 54989 NULL
++cx231xx_v4l2_read_55014 cx231xx_v4l2_read 3 55014 NULL
++error_error_null_Frame_tx_start_read_55024 error_error_null_Frame_tx_start_read 3 55024 NULL
++dgap_do_bios_load_55025 dgap_do_bios_load 3 55025 NULL
++apei_exec_run_55075 apei_exec_run 0 55075 NULL
++bitmap_storage_alloc_55077 bitmap_storage_alloc 2 55077 NULL
++read_dma_55086 read_dma 3 55086 NULL
++rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read_55106 rxpipe_beacon_buffer_thres_host_int_trig_rx_data_read 3 55106 NULL
++crypto_ahash_setkey_55134 crypto_ahash_setkey 3 55134 NULL
++filldir_55137 filldir 3 55137 NULL
++ocfs2_truncate_file_55148 ocfs2_truncate_file 3 55148 NULL
++xfs_check_agi_freecount_55149 xfs_check_agi_freecount 0 55149 NULL nohasharray
++npages_to_npools_55149 npages_to_npools 0-1 55149 &xfs_check_agi_freecount_55149
++ieee80211_if_read_uapsd_queues_55150 ieee80211_if_read_uapsd_queues 3 55150 NULL
++xfs_icsb_modify_counters_55156 xfs_icsb_modify_counters 0 55156 NULL
++gfs2_ri_update_55185 gfs2_ri_update 0 55185 NULL
++mtd_get_fact_prot_info_55186 mtd_get_fact_prot_info 0 55186 NULL
++sel_write_relabel_55195 sel_write_relabel 3 55195 NULL
++sched_feat_write_55202 sched_feat_write 3 55202 NULL
++ht40allow_map_read_55209 ht40allow_map_read 3 55209 NULL
++__kfifo_dma_out_prepare_r_55211 __kfifo_dma_out_prepare_r 4-5 55211 NULL
++do_raw_setsockopt_55215 do_raw_setsockopt 5 55215 NULL
++qxl_alloc_client_monitors_config_55216 qxl_alloc_client_monitors_config 2 55216 NULL
++nouveau_mc_create__55217 nouveau_mc_create_ 4 55217 NULL
++dbAllocDmap_55227 dbAllocDmap 0 55227 NULL
++memcpy_fromiovec_55247 memcpy_fromiovec 3 55247 NULL
++lbs_failcount_write_55276 lbs_failcount_write 3 55276 NULL
++persistent_ram_new_55286 persistent_ram_new 2-1 55286 NULL
++rx_streaming_interval_read_55291 rx_streaming_interval_read 3 55291 NULL nohasharray
++xd_read_cis_55291 xd_read_cis 4 55291 &rx_streaming_interval_read_55291
++lov_get_stripecnt_55297 lov_get_stripecnt 0-3 55297 NULL
++gsm_control_modem_55303 gsm_control_modem 3 55303 NULL
++wimax_msg_len_55304 wimax_msg_len 0 55304 NULL
++qp_alloc_guest_work_55305 qp_alloc_guest_work 5-3 55305 NULL
++gfs2_dir_read_data_55327 gfs2_dir_read_data 3 55327 NULL
++__vxge_hw_vpath_initialize_55328 __vxge_hw_vpath_initialize 2 55328 NULL
++vme_user_read_55338 vme_user_read 3 55338 NULL
++__wa_xfer_setup_sizes_55342 __wa_xfer_setup_sizes 0 55342 NULL nohasharray
++sctp_datamsg_from_user_55342 sctp_datamsg_from_user 4 55342 &__wa_xfer_setup_sizes_55342
++rts51x_seq_write_register_55345 rts51x_seq_write_register 3 55345 NULL
++tipc_send2name_55373 tipc_send2name 5 55373 NULL
++cw1200_sdio_align_size_55391 cw1200_sdio_align_size 2 55391 NULL
++iwl_dbgfs_plcp_delta_read_55407 iwl_dbgfs_plcp_delta_read 3 55407 NULL
++sysfs_chmod_file_55408 sysfs_chmod_file 0 55408 NULL
++si476x_radio_read_rds_blckcnt_blob_55427 si476x_radio_read_rds_blckcnt_blob 3 55427 NULL
++__vxge_hw_channel_allocate_55462 __vxge_hw_channel_allocate 3 55462 NULL
++cx23888_ir_rx_read_55473 cx23888_ir_rx_read 3 55473 NULL
++snd_pcm_lib_write_55483 snd_pcm_lib_write 0-3 55483 NULL
++i2o_pool_alloc_55485 i2o_pool_alloc 4 55485 NULL
++batadv_tt_entries_55487 batadv_tt_entries 0-1 55487 NULL
++ras_stride_increase_window_55501 ras_stride_increase_window 3 55501 NULL
++tx_tx_done_int_template_read_55511 tx_tx_done_int_template_read 3 55511 NULL
++xfs_btree_split_55515 xfs_btree_split 0 55515 NULL
++ea_get_55522 ea_get 3-0 55522 NULL
++buffer_size_55534 buffer_size 0 55534 NULL
++set_msr_interception_55538 set_msr_interception 2 55538 NULL
++tty_port_register_device_55543 tty_port_register_device 3 55543 NULL
++dgap_do_config_load_55548 dgap_do_config_load 2 55548 NULL
++hash_ipport6_expire_55549 hash_ipport6_expire 4 55549 NULL
++dm_stats_list_55551 dm_stats_list 4 55551 NULL
++add_partition_55588 add_partition 2 55588 NULL
++kstrtou8_from_user_55599 kstrtou8_from_user 2 55599 NULL
++SyS_keyctl_55602 SyS_keyctl 4 55602 NULL
++macvtap_put_user_55609 macvtap_put_user 4 55609 NULL
++selinux_setprocattr_55611 selinux_setprocattr 4 55611 NULL
++edge_tty_recv_55622 edge_tty_recv 3 55622 NULL
++pktgen_if_write_55628 pktgen_if_write 3 55628 NULL nohasharray
++reiserfs_xattr_get_55628 reiserfs_xattr_get 0 55628 &pktgen_if_write_55628
++osc_obd_max_pages_per_rpc_seq_write_55636 osc_obd_max_pages_per_rpc_seq_write 3 55636 NULL
++xfs_bmbt_maxrecs_55649 xfs_bmbt_maxrecs 0-2 55649 NULL
++lpfc_idiag_queinfo_read_55662 lpfc_idiag_queinfo_read 3 55662 NULL
++il_dbgfs_tx_queue_read_55668 il_dbgfs_tx_queue_read 3 55668 NULL
++get_info_55681 get_info 3 55681 NULL
++iwl_dbgfs_plcp_delta_write_55682 iwl_dbgfs_plcp_delta_write 3 55682 NULL
++genl_allocate_reserve_groups_55705 genl_allocate_reserve_groups 1 55705 NULL
++pm8001_store_update_fw_55716 pm8001_store_update_fw 4 55716 NULL
++ocfs2_lock_refcount_tree_55719 ocfs2_lock_refcount_tree 0 55719 NULL
++tap_pwup_write_55723 tap_pwup_write 3 55723 NULL
++__iio_allocate_kfifo_55738 __iio_allocate_kfifo 2 55738 NULL
++set_local_name_55757 set_local_name 4 55757 NULL
++strlen_55778 strlen 0 55778 NULL
++set_spte_55783 set_spte 4-5 55783 NULL
++req_bio_endio_55786 req_bio_endio 3 55786 NULL nohasharray
++conf_read_55786 conf_read 3 55786 &req_bio_endio_55786
++uwb_rc_neh_grok_event_55799 uwb_rc_neh_grok_event 3 55799 NULL
++sb16_copy_from_user_55836 sb16_copy_from_user 10-6-7 55836 NULL
++ip_hdrlen_55849 ip_hdrlen 0 55849 NULL
++hcd_alloc_coherent_55862 hcd_alloc_coherent 5 55862 NULL
++shmem_setxattr_55867 shmem_setxattr 4 55867 NULL
++hsc_write_55875 hsc_write 3 55875 NULL
++ramdisk_store_55885 ramdisk_store 4 55885 NULL
++pm_qos_power_read_55891 pm_qos_power_read 3 55891 NULL
++hash_ip4_expire_55911 hash_ip4_expire 4 55911 NULL
++snd_pcm_hw_param_value_min_55917 snd_pcm_hw_param_value_min 0 55917 NULL
++ext2_direct_IO_55932 ext2_direct_IO 4 55932 NULL
++kvm_write_guest_virt_system_55944 kvm_write_guest_virt_system 4-2 55944 NULL
++sel_read_policy_55947 sel_read_policy 3 55947 NULL
++ceph_get_direct_page_vector_55956 ceph_get_direct_page_vector 2 55956 NULL
++simple_read_from_buffer_55957 simple_read_from_buffer 2-5 55957 NULL
++tx_tx_imm_resp_read_55964 tx_tx_imm_resp_read 3 55964 NULL
++btrfs_clone_55977 btrfs_clone 5-3 55977 NULL
++wa_xfer_create_subset_sg_55992 wa_xfer_create_subset_sg 3-2 55992 NULL
++nvme_alloc_iod_56027 nvme_alloc_iod 1-2 56027 NULL
++usb_ocp_write_56047 usb_ocp_write 4 56047 NULL
++dccp_sendmsg_56058 dccp_sendmsg 4 56058 NULL
++pscsi_get_bio_56103 pscsi_get_bio 1 56103 NULL
++add_sysfs_param_56108 add_sysfs_param 0 56108 NULL
++usb_alloc_stream_buffers_56123 usb_alloc_stream_buffers 3 56123 NULL
++sel_read_handle_status_56139 sel_read_handle_status 3 56139 NULL
++write_file_frameerrors_56145 write_file_frameerrors 3 56145 NULL
++__i2c_transfer_56162 __i2c_transfer 0 56162 NULL
++rawv6_setsockopt_56165 rawv6_setsockopt 5 56165 NULL
++ath9k_dump_legacy_btcoex_56194 ath9k_dump_legacy_btcoex 3-0 56194 NULL
++vring_add_indirect_56222 vring_add_indirect 4 56222 NULL
++ocfs2_find_xe_in_bucket_56224 ocfs2_find_xe_in_bucket 0 56224 NULL
++do_ipt_set_ctl_56238 do_ipt_set_ctl 4 56238 NULL
++fd_copyin_56247 fd_copyin 3 56247 NULL
++sk_rmem_schedule_56255 sk_rmem_schedule 3 56255 NULL
++il4965_ucode_general_stats_read_56277 il4965_ucode_general_stats_read 3 56277 NULL
++ieee80211_if_fmt_user_power_level_56283 ieee80211_if_fmt_user_power_level 3 56283 NULL
++RESIZE_IF_NEEDED_56286 RESIZE_IF_NEEDED 2 56286 NULL
++dvb_aplay_56296 dvb_aplay 3 56296 NULL
++btmrvl_hscfgcmd_read_56303 btmrvl_hscfgcmd_read 3 56303 NULL
++speakup_file_write_56310 speakup_file_write 3 56310 NULL
++pipeline_pre_to_defrag_swi_read_56321 pipeline_pre_to_defrag_swi_read 3 56321 NULL
++journal_init_revoke_table_56331 journal_init_revoke_table 1 56331 NULL
++snd_rawmidi_read_56337 snd_rawmidi_read 3 56337 NULL
++vxge_os_dma_malloc_async_56348 vxge_os_dma_malloc_async 3 56348 NULL
++mite_device_bytes_transferred_56355 mite_device_bytes_transferred 0 56355 NULL
++qd_get_56365 qd_get 0 56365 NULL
++iov_iter_copy_from_user_atomic_56368 iov_iter_copy_from_user_atomic 4-0 56368 NULL
++dev_read_56369 dev_read 3 56369 NULL
++ath10k_read_simulate_fw_crash_56371 ath10k_read_simulate_fw_crash 3 56371 NULL
++write_gssp_56404 write_gssp 3 56404 NULL
++ocfs2_control_read_56405 ocfs2_control_read 3 56405 NULL
++do_get_write_access_56410 do_get_write_access 0 56410 NULL
++store_msg_56417 store_msg 3 56417 NULL
++pppol2tp_sendmsg_56420 pppol2tp_sendmsg 4 56420 NULL
++l2cap_segment_le_sdu_56426 l2cap_segment_le_sdu 4 56426 NULL
++fl_create_56435 fl_create 5 56435 NULL
++gnttab_map_56439 gnttab_map 2 56439 NULL
++cx231xx_init_isoc_56453 cx231xx_init_isoc 3-2-4 56453 NULL
++set_connectable_56458 set_connectable 4 56458 NULL
++osd_req_list_partition_objects_56464 osd_req_list_partition_objects 5 56464 NULL
++putused_user_56467 putused_user 3 56467 NULL
++ocfs2_zero_extend_range_56468 ocfs2_zero_extend_range 3-2 56468 NULL
++lbs_rdmac_write_56471 lbs_rdmac_write 3 56471 NULL
++calc_linear_pos_56472 calc_linear_pos 0-3 56472 NULL
++crypto_shash_alignmask_56486 crypto_shash_alignmask 0 56486 NULL
++ieee80211_rx_mgmt_probe_beacon_56491 ieee80211_rx_mgmt_probe_beacon 3 56491 NULL
++memblock_virt_alloc_56501 memblock_virt_alloc 1 56501 NULL
++init_map_ip_56508 init_map_ip 5 56508 NULL
++lustre_posix_acl_xattr_reduce_space_56512 lustre_posix_acl_xattr_reduce_space 3-0-2 56512 NULL
++cfg80211_connect_result_56515 cfg80211_connect_result 4-6 56515 NULL
++ip_options_get_56538 ip_options_get 4 56538 NULL
++ll_wr_track_id_56544 ll_wr_track_id 2 56544 NULL
++alloc_apertures_56561 alloc_apertures 1 56561 NULL
++rs_sta_dbgfs_stats_table_read_56573 rs_sta_dbgfs_stats_table_read 3 56573 NULL
++portcntrs_2_read_56586 portcntrs_2_read 3 56586 NULL
++event_filter_write_56609 event_filter_write 3 56609 NULL
++nvme_trans_log_temperature_56613 nvme_trans_log_temperature 3 56613 NULL
++edac_device_create_block_56619 edac_device_create_block 0 56619 NULL
++gather_array_56641 gather_array 3 56641 NULL
++lookup_extent_backref_56644 lookup_extent_backref 9 56644 NULL
++uvc_debugfs_stats_read_56651 uvc_debugfs_stats_read 3 56651 NULL
++tg3_nvram_write_block_56666 tg3_nvram_write_block 3 56666 NULL
++snd_gus_dram_read_56686 snd_gus_dram_read 4 56686 NULL
++dvb_ringbuffer_read_user_56702 dvb_ringbuffer_read_user 3-0 56702 NULL
++sta_flags_read_56710 sta_flags_read 3 56710 NULL
++ipv6_getsockopt_sticky_56711 ipv6_getsockopt_sticky 5 56711 NULL
++xfs_btree_decrement_56718 xfs_btree_decrement 0 56718 NULL
++__wa_xfer_setup_segs_56725 __wa_xfer_setup_segs 2 56725 NULL
++__copy_from_user_ll_56738 __copy_from_user_ll 0-3 56738 NULL
++drm_agp_bind_pages_56748 drm_agp_bind_pages 3 56748 NULL
++btrfsic_map_block_56751 btrfsic_map_block 2 56751 NULL
++ttm_alloc_new_pages_56792 ttm_alloc_new_pages 5 56792 NULL
++ion_ioctl_56806 ion_ioctl 2 56806 NULL
++do_syslog_56807 do_syslog 3 56807 NULL
++mtdchar_write_56831 mtdchar_write 3 56831 NULL
++snd_rawmidi_kernel_write1_56847 snd_rawmidi_kernel_write1 4-0 56847 NULL
++si476x_radio_read_agc_blob_56849 si476x_radio_read_agc_blob 3 56849 NULL
++ext3_xattr_ibody_get_56880 ext3_xattr_ibody_get 0 56880 NULL
++pvr2_debugifc_print_status_56890 pvr2_debugifc_print_status 3 56890 NULL
++debug_debug3_read_56894 debug_debug3_read 3 56894 NULL
++batadv_tt_update_changes_56895 batadv_tt_update_changes 3 56895 NULL
++hfsplus_find_cat_56899 hfsplus_find_cat 0 56899 NULL
++strcspn_56913 strcspn 0 56913 NULL
++__kfifo_out_56927 __kfifo_out 0-3 56927 NULL
++journal_init_revoke_56933 journal_init_revoke 2 56933 NULL
++xfs_alloc_ag_vextent_56943 xfs_alloc_ag_vextent 0 56943 NULL
++nouveau_xtensa_create__56952 nouveau_xtensa_create_ 8 56952 NULL
++diva_get_driver_info_56967 diva_get_driver_info 0 56967 NULL
++nouveau_device_create__56984 nouveau_device_create_ 6 56984 NULL
++sptlrpc_secflags2str_56995 sptlrpc_secflags2str 3 56995 NULL
++vlsi_alloc_ring_57003 vlsi_alloc_ring 3-4 57003 NULL
++btrfs_super_csum_size_57004 btrfs_super_csum_size 0 57004 NULL
++aircable_process_packet_57027 aircable_process_packet 4 57027 NULL
++ieee80211_if_fmt_state_57043 ieee80211_if_fmt_state 3 57043 NULL nohasharray
++skb_network_offset_57043 skb_network_offset 0 57043 &ieee80211_if_fmt_state_57043
++bytes_to_samples_57049 bytes_to_samples 0-2 57049 NULL
++xfs_buf_read_map_57053 xfs_buf_read_map 3 57053 NULL
++cx2341x_ctrl_new_std_57061 cx2341x_ctrl_new_std 4 57061 NULL
++sca3000_read_data_57064 sca3000_read_data 4 57064 NULL
++pcmcia_replace_cis_57066 pcmcia_replace_cis 3 57066 NULL
++tracing_set_trace_write_57096 tracing_set_trace_write 3 57096 NULL
++altera_get_note_57099 altera_get_note 6 57099 NULL
++hpfs_readpages_57106 hpfs_readpages 4 57106 NULL
++crypto_compress_ctxsize_57109 crypto_compress_ctxsize 0 57109 NULL
++cipso_v4_gentag_loc_57119 cipso_v4_gentag_loc 0 57119 NULL
++rds_ib_sub_signaled_57136 rds_ib_sub_signaled 2 57136 NULL nohasharray
++nl80211_send_deauth_57136 nl80211_send_deauth 4 57136 &rds_ib_sub_signaled_57136 nohasharray
++ima_show_htable_value_57136 ima_show_htable_value 2 57136 &nl80211_send_deauth_57136
++snd_sonicvibes_getdmac_57140 snd_sonicvibes_getdmac 0 57140 NULL
++_iwl_dbgfs_bf_params_write_57141 _iwl_dbgfs_bf_params_write 3 57141 NULL
++udl_prime_create_57159 udl_prime_create 2 57159 NULL
++stk_prepare_sio_buffers_57168 stk_prepare_sio_buffers 2 57168 NULL
++rx_hw_stuck_read_57179 rx_hw_stuck_read 3 57179 NULL
++hash_netnet6_expire_57191 hash_netnet6_expire 4 57191 NULL
++tt3650_ci_msg_57219 tt3650_ci_msg 4 57219 NULL
++dma_fifo_alloc_57236 dma_fifo_alloc 5-3-2 57236 NULL
++flush_space_57241 flush_space 0 57241 NULL
++rsxx_cram_write_57244 rsxx_cram_write 3 57244 NULL
++ieee80211_if_fmt_tsf_57249 ieee80211_if_fmt_tsf 3 57249 NULL
++oprofilefs_ulong_from_user_57251 oprofilefs_ulong_from_user 3 57251 NULL
++alloc_flex_gd_57259 alloc_flex_gd 1 57259 NULL
++lbs_sleepparams_write_57283 lbs_sleepparams_write 3 57283 NULL
++pstore_file_read_57288 pstore_file_read 3 57288 NULL
++snd_pcm_read_57289 snd_pcm_read 3 57289 NULL
++ftdi_elan_write_57309 ftdi_elan_write 3 57309 NULL
++xfs_iread_57313 xfs_iread 0 57313 NULL nohasharray
++write_file_regval_57313 write_file_regval 3 57313 &xfs_iread_57313
++__mxt_write_reg_57326 __mxt_write_reg 3 57326 NULL
++usblp_read_57342 usblp_read 3 57342 NULL
++print_devstats_dot11RTSFailureCount_57347 print_devstats_dot11RTSFailureCount 3 57347 NULL
++dio_send_cur_page_57348 dio_send_cur_page 0 57348 NULL
++tipc_bclink_stats_57372 tipc_bclink_stats 2 57372 NULL
++tty_register_device_attr_57381 tty_register_device_attr 2 57381 NULL
++read_file_blob_57406 read_file_blob 3 57406 NULL
++enclosure_register_57412 enclosure_register 3 57412 NULL
++compat_keyctl_instantiate_key_iov_57431 compat_keyctl_instantiate_key_iov 3 57431 NULL
++copy_to_user_fromio_57432 copy_to_user_fromio 3 57432 NULL
++__roundup_pow_of_two_57461 __roundup_pow_of_two 0 57461 NULL
++sisusb_clear_vram_57466 sisusb_clear_vram 2-3 57466 NULL
++ieee80211_if_read_flags_57470 ieee80211_if_read_flags 3 57470 NULL
++tipc_port_reject_sections_57478 tipc_port_reject_sections 4 57478 NULL
++bnad_debugfs_write_regwr_57500 bnad_debugfs_write_regwr 3 57500 NULL
++skb_headlen_57501 skb_headlen 0 57501 NULL
++copy_in_user_57502 copy_in_user 3 57502 NULL
++ckhdid_printf_57505 ckhdid_printf 2 57505 NULL nohasharray
++gfs2_quota_hold_57505 gfs2_quota_hold 0 57505 &ckhdid_printf_57505
++init_tag_map_57515 init_tag_map 3 57515 NULL
++il_dbgfs_force_reset_read_57517 il_dbgfs_force_reset_read 3 57517 NULL nohasharray
++wil_read_file_ssid_57517 wil_read_file_ssid 3 57517 &il_dbgfs_force_reset_read_57517
++cmm_read_57520 cmm_read 3 57520 NULL
++inode_permission_57531 inode_permission 0 57531 NULL
++acpi_dev_get_resources_57534 acpi_dev_get_resources 0 57534 NULL
++ptlrpc_lprocfs_hp_ratio_seq_write_57537 ptlrpc_lprocfs_hp_ratio_seq_write 3 57537 NULL
++ReadHDLCPnP_57559 ReadHDLCPnP 0 57559 NULL
++obd_unpackmd_57563 obd_unpackmd 0 57563 NULL
++snd_pcm_playback_ioctl1_57569 snd_pcm_playback_ioctl1 0 57569 NULL
++get_bridge_ifindices_57579 get_bridge_ifindices 0 57579 NULL
++ldlm_cli_enqueue_local_57582 ldlm_cli_enqueue_local 11 57582 NULL
++il_dbgfs_interrupt_write_57591 il_dbgfs_interrupt_write 3 57591 NULL
++read_file_spectral_fft_period_57593 read_file_spectral_fft_period 3 57593 NULL
++tx_tx_retry_template_read_57623 tx_tx_retry_template_read 3 57623 NULL
++sisusbcon_putcs_57630 sisusbcon_putcs 3 57630 NULL
++mem_read_57631 mem_read 3 57631 NULL
++xfs_alloc_ag_vextent_near_57653 xfs_alloc_ag_vextent_near 0 57653 NULL
++r3964_write_57662 r3964_write 4 57662 NULL
++proc_ns_readlink_57664 proc_ns_readlink 3 57664 NULL
++__lgwrite_57669 __lgwrite 4 57669 NULL
++f1x_match_to_this_node_57695 f1x_match_to_this_node 3 57695 NULL
++i2400m_rx_stats_read_57706 i2400m_rx_stats_read 3 57706 NULL
++ieee80211_if_read_dot11MeshHWMPconfirmationInterval_57722 ieee80211_if_read_dot11MeshHWMPconfirmationInterval 3 57722 NULL
++nouveau_gpio_create__57735 nouveau_gpio_create_ 4-5 57735 NULL
++pppol2tp_recvmsg_57742 pppol2tp_recvmsg 4 57742 NULL nohasharray
++compat_sys_set_mempolicy_57742 compat_sys_set_mempolicy 3 57742 &pppol2tp_recvmsg_57742
++ieee80211_if_fmt_dot11MeshHWMPpreqMinInterval_57762 ieee80211_if_fmt_dot11MeshHWMPpreqMinInterval 3 57762 NULL
++SYSC_process_vm_writev_57776 SYSC_process_vm_writev 3-5 57776 NULL
++apei_exec_collect_resources_57788 apei_exec_collect_resources 0 57788 NULL
++security_inode_unlink_57791 security_inode_unlink 0 57791 NULL
++ld2_57794 ld2 0 57794 NULL
++ivtv_read_57796 ivtv_read 3 57796 NULL
++ion_test_ioctl_57799 ion_test_ioctl 2 57799 NULL
++bfad_debugfs_read_regrd_57830 bfad_debugfs_read_regrd 3 57830 NULL
++copy_to_user_57835 copy_to_user 3-0 57835 NULL
++xfs_rtpick_extent_57843 xfs_rtpick_extent 0 57843 NULL nohasharray
++flash_read_57843 flash_read 3 57843 &xfs_rtpick_extent_57843
++kiblnd_create_tx_pool_57846 kiblnd_create_tx_pool 2 57846 NULL
++radeon_ttm_gtt_read_57879 radeon_ttm_gtt_read 3 57879 NULL
++xt_alloc_table_info_57903 xt_alloc_table_info 1 57903 NULL
++iio_read_first_n_kfifo_57910 iio_read_first_n_kfifo 2 57910 NULL
++ll_xattr_find_get_lock_57912 ll_xattr_find_get_lock 0 57912 NULL
++memcg_caches_array_size_57918 memcg_caches_array_size 0-1 57918 NULL
++twl_i2c_write_57923 twl_i2c_write 3-4 57923 NULL
++__snd_gf1_look16_57925 __snd_gf1_look16 0 57925 NULL
++sel_read_handle_unknown_57933 sel_read_handle_unknown 3 57933 NULL
++xfs_inode_item_format_convert_57937 xfs_inode_item_format_convert 0 57937 NULL
++xfs_mru_cache_create_57943 xfs_mru_cache_create 3 57943 NULL
++key_algorithm_read_57946 key_algorithm_read 3 57946 NULL
++ip_set_alloc_57953 ip_set_alloc 1 57953 NULL nohasharray
++ioat3_dca_count_dca_slots_57953 ioat3_dca_count_dca_slots 0 57953 &ip_set_alloc_57953
++do_rx_dma_57996 do_rx_dma 5 57996 NULL
++rx_reset_counter_read_58001 rx_reset_counter_read 3 58001 NULL
++iwl_dbgfs_ucode_rx_stats_read_58023 iwl_dbgfs_ucode_rx_stats_read 3 58023 NULL
++io_playback_transfer_58030 io_playback_transfer 4 58030 NULL
++mce_async_out_58056 mce_async_out 3 58056 NULL
++ocfs2_find_leaf_58065 ocfs2_find_leaf 0 58065 NULL
++dt3155_alloc_coherent_58073 dt3155_alloc_coherent 2 58073 NULL
++cm4040_write_58079 cm4040_write 3 58079 NULL
++ipv6_flowlabel_opt_58135 ipv6_flowlabel_opt 3 58135 NULL nohasharray
++slhc_init_58135 slhc_init 1-2 58135 &ipv6_flowlabel_opt_58135
++rd_build_prot_space_58137 rd_build_prot_space 2 58137 NULL
++xfs_bmap_add_extent_delay_real_58151 xfs_bmap_add_extent_delay_real 0 58151 NULL
++xfs_btree_update_58167 xfs_btree_update 0 58167 NULL
++garmin_write_bulk_58191 garmin_write_bulk 3 58191 NULL
++ieee80211_if_fmt_flags_58205 ieee80211_if_fmt_flags 3 58205 NULL
++i40evf_allocate_virt_mem_d_58210 i40evf_allocate_virt_mem_d 3 58210 NULL
++btrfsic_create_link_to_next_block_58246 btrfsic_create_link_to_next_block 4 58246 NULL
++read_file_debug_58256 read_file_debug 3 58256 NULL
++osc_max_dirty_mb_seq_write_58263 osc_max_dirty_mb_seq_write 3 58263 NULL
++cfg80211_mgmt_tx_status_58266 cfg80211_mgmt_tx_status 4 58266 NULL
++profile_load_58267 profile_load 3 58267 NULL
++kstrtos8_from_user_58268 kstrtos8_from_user 2 58268 NULL
++acpi_ds_build_internal_package_obj_58271 acpi_ds_build_internal_package_obj 3 58271 NULL
++iscsi_decode_text_input_58292 iscsi_decode_text_input 4 58292 NULL
++ieee80211_if_read_dot11MeshTTL_58307 ieee80211_if_read_dot11MeshTTL 3 58307 NULL
++tx_tx_start_int_templates_read_58324 tx_tx_start_int_templates_read 3 58324 NULL
++ext4_ext_truncate_extend_restart_58331 ext4_ext_truncate_extend_restart 3 58331 NULL
++__copy_from_user_swizzled_58337 __copy_from_user_swizzled 2-4 58337 NULL
++SyS_migrate_pages_58348 SyS_migrate_pages 2 58348 NULL
++brcmf_debugfs_sdio_counter_read_58369 brcmf_debugfs_sdio_counter_read 3 58369 NULL
++il_dbgfs_status_read_58388 il_dbgfs_status_read 3 58388 NULL
++_drbd_md_sync_page_io_58403 _drbd_md_sync_page_io 6 58403 NULL
++kvm_mmu_write_protect_pt_masked_58406 kvm_mmu_write_protect_pt_masked 3 58406 NULL nohasharray
++idetape_pad_zeros_58406 idetape_pad_zeros 2 58406 &kvm_mmu_write_protect_pt_masked_58406
++xfs_btree_get_rec_58410 xfs_btree_get_rec 0 58410 NULL
++i2400m_pld_size_58415 i2400m_pld_size 0 58415 NULL
++capabilities_read_58457 capabilities_read 3 58457 NULL
++usnic_vnic_get_resources_58462 usnic_vnic_get_resources 3 58462 NULL
++lpfc_idiag_baracc_read_58466 lpfc_idiag_baracc_read 3 58466 NULL nohasharray
++compat_do_ipt_set_ctl_58466 compat_do_ipt_set_ctl 4 58466 &lpfc_idiag_baracc_read_58466
++nv_rd08_58472 nv_rd08 0 58472 NULL
++acpi_tables_sysfs_init_58477 acpi_tables_sysfs_init 0 58477 NULL
++snd_gf1_read_addr_58483 snd_gf1_read_addr 0 58483 NULL
++snd_rme96_capture_copy_58484 snd_rme96_capture_copy 5 58484 NULL
++btrfs_cont_expand_58498 btrfs_cont_expand 0-2-3 58498 NULL
++gfs2_dir_get_new_buffer_58509 gfs2_dir_get_new_buffer 0 58509 NULL
++rndis_add_response_58544 rndis_add_response 2 58544 NULL
++wep_decrypt_fail_read_58567 wep_decrypt_fail_read 3 58567 NULL
++scnprint_mac_oui_58578 scnprint_mac_oui 3-0 58578 NULL
++get_rhf_errstring_58582 get_rhf_errstring 3 58582 NULL
++ea_read_inline_58589 ea_read_inline 0 58589 NULL
++isku_sysfs_read_keys_thumbster_58590 isku_sysfs_read_keys_thumbster 6 58590 NULL
++xip_file_read_58592 xip_file_read 3 58592 NULL
++ecryptfs_write_end_58594 ecryptfs_write_end 5-3 58594 NULL
++radeon_bo_size_58606 radeon_bo_size 0 58606 NULL
++skb_copy_to_page_nocache_58624 skb_copy_to_page_nocache 6 58624 NULL
++filemap_fdatawrite_range_58630 filemap_fdatawrite_range 0 58630 NULL
++tx_tx_start_fw_gen_read_58648 tx_tx_start_fw_gen_read 3 58648 NULL
++iwl_dbgfs_rx_handlers_write_58655 iwl_dbgfs_rx_handlers_write 3 58655 NULL
++find_zero_58685 find_zero 0-1 58685 NULL
++uwb_bce_print_IEs_58686 uwb_bce_print_IEs 4 58686 NULL
++tps6586x_writes_58689 tps6586x_writes 2-3 58689 NULL
++vx_send_msg_58711 vx_send_msg 0 58711 NULL
++csum_exist_in_range_58730 csum_exist_in_range 2-3 58730 NULL
++frames_to_bytes_58741 frames_to_bytes 0-2 58741 NULL
++ieee80211_if_write_tkip_mic_test_58748 ieee80211_if_write_tkip_mic_test 3 58748 NULL
++agp_allocate_memory_58761 agp_allocate_memory 2 58761 NULL
++regmap_calc_reg_len_58795 regmap_calc_reg_len 0 58795 NULL
++raw_send_hdrinc_58803 raw_send_hdrinc 4 58803 NULL
++isku_sysfs_read_58806 isku_sysfs_read 5 58806 NULL
++ep_read_58813 ep_read 3 58813 NULL
++command_write_58841 command_write 3 58841 NULL
++ath6kl_wmi_send_action_cmd_58860 ath6kl_wmi_send_action_cmd 7 58860 NULL
++gs_alloc_req_58883 gs_alloc_req 2 58883 NULL
++esas2r_change_queue_depth_58886 esas2r_change_queue_depth 2 58886 NULL
++lprocfs_wr_pinger_recov_58914 lprocfs_wr_pinger_recov 3 58914 NULL
++print_devstats_dot11FCSErrorCount_58919 print_devstats_dot11FCSErrorCount 3 58919 NULL
++pipeline_cs_rx_packet_out_read_58926 pipeline_cs_rx_packet_out_read 3 58926 NULL
++xfs_bmap_read_extents_58936 xfs_bmap_read_extents 0 58936 NULL
++wait_table_hash_nr_entries_58962 wait_table_hash_nr_entries 0 58962 NULL
++ieee80211_if_fmt_dot11MeshHWMPactivePathToRootTimeout_58965 ieee80211_if_fmt_dot11MeshHWMPactivePathToRootTimeout 3 58965 NULL
++crypto_aead_ivsize_58970 crypto_aead_ivsize 0 58970 NULL
++__mem_cgroup_try_charge_58976 __mem_cgroup_try_charge 0 58976 NULL
++init_list_set_59005 init_list_set 3 59005 NULL
++ep_write_59008 ep_write 3 59008 NULL
++lpfc_idiag_baracc_write_59014 lpfc_idiag_baracc_write 3 59014 NULL
++SyS_preadv_59029 SyS_preadv 3 59029 NULL
++init_pci_cap_msi_perm_59033 init_pci_cap_msi_perm 2 59033 NULL
++selinux_transaction_write_59038 selinux_transaction_write 3 59038 NULL
++crypto_aead_reqsize_59039 crypto_aead_reqsize 0 59039 NULL
++regmap_bulk_write_59049 regmap_bulk_write 2-4 59049 NULL
++mmc_sd_num_wr_blocks_59112 mmc_sd_num_wr_blocks 0 59112 NULL
++scsi_io_completion_59122 scsi_io_completion 2 59122 NULL nohasharray
++sta_tx_latency_stat_table_59122 sta_tx_latency_stat_table 0-4-5 59122 &scsi_io_completion_59122
++nfc_llcp_send_i_frame_59130 nfc_llcp_send_i_frame 3 59130 NULL
++print_devstats_dot11RTSSuccessCount_59145 print_devstats_dot11RTSSuccessCount 3 59145 NULL nohasharray
++framebuffer_alloc_59145 framebuffer_alloc 1 59145 &print_devstats_dot11RTSSuccessCount_59145
++radeon_compat_ioctl_59150 radeon_compat_ioctl 2 59150 NULL
++pvr2_hdw_report_clients_59152 pvr2_hdw_report_clients 3 59152 NULL
++ksize_59176 ksize 0 59176 NULL
++setup_window_59178 setup_window 4-2-5-7 59178 NULL
++ocfs2_move_extent_59187 ocfs2_move_extent 2-5 59187 NULL
++xfs_ialloc_next_rec_59193 xfs_ialloc_next_rec 0 59193 NULL
++xfs_iext_realloc_indirect_59211 xfs_iext_realloc_indirect 2 59211 NULL
++check_mapped_selector_name_59216 check_mapped_selector_name 5 59216 NULL
++dt3155_read_59226 dt3155_read 3 59226 NULL
++paging64_gpte_to_gfn_lvl_59229 paging64_gpte_to_gfn_lvl 0-1-2 59229 NULL
++nla_len_59258 nla_len 0 59258 NULL
++drbd_bm_write_page_59290 drbd_bm_write_page 2 59290 NULL
++btrfs_insert_dir_item_59304 btrfs_insert_dir_item 4 59304 NULL
++xfs_iformat_fork_59312 xfs_iformat_fork 0 59312 NULL
++fd_copyout_59323 fd_copyout 3 59323 NULL
++read_9287_modal_eeprom_59327 read_9287_modal_eeprom 3 59327 NULL
++rx_defrag_in_process_called_read_59338 rx_defrag_in_process_called_read 3 59338 NULL
++xfs_attrmulti_attr_set_59346 xfs_attrmulti_attr_set 4 59346 NULL nohasharray
++xfs_alloc_lookup_le_59346 xfs_alloc_lookup_le 0 59346 &xfs_attrmulti_attr_set_59346
++__map_request_59350 __map_request 0 59350 NULL
++gfs2_quota_lock_check_59353 gfs2_quota_lock_check 0 59353 NULL
++f2fs_fallocate_59377 f2fs_fallocate 4-3 59377 NULL
++pvr2_debugifc_print_info_59380 pvr2_debugifc_print_info 3 59380 NULL
++journal_init_dev_59384 journal_init_dev 5 59384 NULL
++__net_get_random_once_59389 __net_get_random_once 2 59389 NULL
++isku_sysfs_read_keys_function_59412 isku_sysfs_read_keys_function 6 59412 NULL
++rts51x_transfer_data_59416 rts51x_transfer_data 4 59416 NULL
++pci_ctrl_read_59424 pci_ctrl_read 0 59424 NULL
++vxge_hw_ring_rxds_per_block_get_59425 vxge_hw_ring_rxds_per_block_get 0 59425 NULL
++SyS_sched_setaffinity_59442 SyS_sched_setaffinity 2 59442 NULL
++fs_path_ensure_buf_59445 fs_path_ensure_buf 2 59445 NULL
++ib_copy_from_udata_59502 ib_copy_from_udata 3 59502 NULL
++mic_vringh_copy_59523 mic_vringh_copy 4 59523 NULL
++mpi_get_nbits_59551 mpi_get_nbits 0 59551 NULL
++tunables_write_59563 tunables_write 3 59563 NULL
++bio_split_59564 bio_split 2 59564 NULL
++__copy_from_user_ll_nozero_59571 __copy_from_user_ll_nozero 0-3 59571 NULL
++write_pbl_59583 write_pbl 4 59583 NULL
++memdup_user_59590 memdup_user 2 59590 NULL
++xrcdn_free_res_59616 xrcdn_free_res 5 59616 NULL nohasharray
++mem_fwlog_free_mem_blks_read_59616 mem_fwlog_free_mem_blks_read 3 59616 &xrcdn_free_res_59616
++ath6kl_endpoint_stats_write_59621 ath6kl_endpoint_stats_write 3 59621 NULL
++mtrr_write_59622 mtrr_write 3 59622 NULL
++find_first_zero_bit_59636 find_first_zero_bit 0 59636 NULL
++SyS_setdomainname_59646 SyS_setdomainname 2 59646 NULL
++file_update_time_59647 file_update_time 0 59647 NULL
++hidraw_read_59650 hidraw_read 3 59650 NULL
++v9fs_xattr_set_acl_59651 v9fs_xattr_set_acl 4 59651 NULL
++__devcgroup_check_permission_59665 __devcgroup_check_permission 0 59665 NULL
++iwl_dbgfs_mac_params_read_59666 iwl_dbgfs_mac_params_read 3 59666 NULL
++alloc_dca_provider_59670 alloc_dca_provider 2 59670 NULL
++mic_calc_failure_read_59700 mic_calc_failure_read 3 59700 NULL
++ioperm_get_59701 ioperm_get 4-3 59701 NULL
++prism2_info_scanresults_59729 prism2_info_scanresults 3 59729 NULL
++ieee80211_if_read_fwded_unicast_59740 ieee80211_if_read_fwded_unicast 3 59740 NULL
++fat_direct_IO_59741 fat_direct_IO 4 59741 NULL
++qib_decode_7220_sdma_errs_59745 qib_decode_7220_sdma_errs 4 59745 NULL
++strnlen_59746 strnlen 0 59746 NULL
++ext3_acl_count_59754 ext3_acl_count 0-1 59754 NULL
++long_retry_limit_read_59766 long_retry_limit_read 3 59766 NULL nohasharray
++cap_inode_need_killpriv_59766 cap_inode_need_killpriv 0 59766 &long_retry_limit_read_59766
++venus_remove_59781 venus_remove 4 59781 NULL
++mei_nfc_recv_59784 mei_nfc_recv 3 59784 NULL
++C_SYSC_preadv_59801 C_SYSC_preadv 3 59801 NULL
++ipw_write_59807 ipw_write 3 59807 NULL
++scsi_init_shared_tag_map_59812 scsi_init_shared_tag_map 2 59812 NULL
++ieee80211_if_read_dot11MeshHWMPmaxPREQretries_59829 ieee80211_if_read_dot11MeshHWMPmaxPREQretries 3 59829 NULL
++gspca_dev_probe2_59833 gspca_dev_probe2 4 59833 NULL
++regmap_raw_write_async_59849 regmap_raw_write_async 2-4 59849 NULL
++pvr2_ioread_set_sync_key_59882 pvr2_ioread_set_sync_key 3 59882 NULL
++l2cap_sock_recvmsg_59886 l2cap_sock_recvmsg 4 59886 NULL
++ffs_prepare_buffer_59892 ffs_prepare_buffer 2 59892 NULL
++kvm_mmu_notifier_invalidate_range_start_59944 kvm_mmu_notifier_invalidate_range_start 3-4 59944 NULL
++ath10k_read_dfs_stats_59949 ath10k_read_dfs_stats 3 59949 NULL
++dapm_widget_power_read_file_59950 dapm_widget_power_read_file 3 59950 NULL nohasharray
++il_dbgfs_rxon_flags_read_59950 il_dbgfs_rxon_flags_read 3 59950 &dapm_widget_power_read_file_59950
++il_dbgfs_missed_beacon_read_59956 il_dbgfs_missed_beacon_read 3 59956 NULL
++__arch_hweight16_59975 __arch_hweight16 0 59975 NULL
++osd_req_read_kern_59990 osd_req_read_kern 5 59990 NULL
++ghash_async_setkey_60001 ghash_async_setkey 3 60001 NULL
++ieee80211_if_fmt_dot11MeshAwakeWindowDuration_60006 ieee80211_if_fmt_dot11MeshAwakeWindowDuration 3 60006 NULL
++copy_items_60009 copy_items 7 60009 NULL
++rawsock_sendmsg_60010 rawsock_sendmsg 4 60010 NULL
++mthca_init_cq_60011 mthca_init_cq 2 60011 NULL
++osd_req_list_dev_partitions_60027 osd_req_list_dev_partitions 4 60027 NULL
++xlog_bread_offset_60030 xlog_bread_offset 3 60030 NULL
++xfs_imap_to_bp_60034 xfs_imap_to_bp 0 60034 NULL
++bio_integrity_hw_sectors_60039 bio_integrity_hw_sectors 0-2 60039 NULL
++do_ip6t_set_ctl_60040 do_ip6t_set_ctl 4 60040 NULL
++vcs_size_60050 vcs_size 0 60050 NULL
++gru_alloc_gts_60056 gru_alloc_gts 3-2 60056 NULL
++compat_writev_60063 compat_writev 3 60063 NULL
++ath6kl_listen_int_write_60066 ath6kl_listen_int_write 3 60066 NULL
++c4iw_num_stags_60073 c4iw_num_stags 0 60073 NULL
++rxrpc_kernel_send_data_60083 rxrpc_kernel_send_data 3 60083 NULL
++ieee80211_if_fmt_fwded_frames_60103 ieee80211_if_fmt_fwded_frames 3 60103 NULL
++SYSC_msgsnd_60113 SYSC_msgsnd 3 60113 NULL
++nfs_idmap_request_key_60124 nfs_idmap_request_key 2 60124 NULL
++__mutex_lock_common_60134 __mutex_lock_common 0 60134 NULL
++ld_usb_read_60156 ld_usb_read 3 60156 NULL
++jmb38x_ms_count_slots_60164 jmb38x_ms_count_slots 0 60164 NULL
++init_state_60165 init_state 2 60165 NULL
++jffs2_alloc_full_dirent_60179 jffs2_alloc_full_dirent 1 60179 NULL nohasharray
++sg_build_sgat_60179 sg_build_sgat 3 60179 &jffs2_alloc_full_dirent_60179
++fuse_async_req_send_60183 fuse_async_req_send 0-3 60183 NULL
++rx_rx_tkip_replays_read_60193 rx_rx_tkip_replays_read 3 60193 NULL
++qib_reg_phys_mr_60202 qib_reg_phys_mr 3 60202 NULL
++btrfs_get_token_16_60220 btrfs_get_token_16 0 60220 NULL
++irq_alloc_domain_generic_chips_60264 irq_alloc_domain_generic_chips 2-3 60264 NULL
++display_crc_ctl_write_60273 display_crc_ctl_write 3 60273 NULL
++printer_write_60276 printer_write 3 60276 NULL
++do_xip_mapping_read_60297 do_xip_mapping_read 5 60297 NULL
++getDataLength_60301 getDataLength 0 60301 NULL
++usb_alphatrack_write_60341 usb_alphatrack_write 3 60341 NULL
++__kfifo_from_user_r_60345 __kfifo_from_user_r 5-3 60345 NULL
++dccp_setsockopt_60367 dccp_setsockopt 5 60367 NULL
++mthca_alloc_resize_buf_60394 mthca_alloc_resize_buf 3 60394 NULL
++ocfs2_zero_extend_60396 ocfs2_zero_extend 3 60396 NULL
++driver_names_read_60399 driver_names_read 3 60399 NULL
++simple_alloc_urb_60420 simple_alloc_urb 3 60420 NULL
++excessive_retries_read_60425 excessive_retries_read 3 60425 NULL
++kmalloc_60432 kmalloc 1 60432 NULL nohasharray
++tstats_write_60432 tstats_write 3 60432 &kmalloc_60432
++snd_hda_get_num_raw_conns_60462 snd_hda_get_num_raw_conns 0 60462 NULL
++crypto_shash_setkey_60483 crypto_shash_setkey 3 60483 NULL
++lustre_msg_early_size_60496 lustre_msg_early_size 0 60496 NULL
++xfs_btree_make_block_unfull_60511 xfs_btree_make_block_unfull 0 60511 NULL
++v9fs_fid_readn_60544 v9fs_fid_readn 4 60544 NULL
++nonpaging_map_60551 nonpaging_map 4 60551 NULL
++osc_lockless_truncate_seq_write_60553 osc_lockless_truncate_seq_write 3 60553 NULL
++tracing_entries_write_60563 tracing_entries_write 3 60563 NULL
++memblock_virt_alloc_try_nid_nopanic_60604 memblock_virt_alloc_try_nid_nopanic 1 60604 NULL
++inode_change_ok_60614 inode_change_ok 0 60614 NULL
++skb_transport_offset_60619 skb_transport_offset 0 60619 NULL
++wl1273_fm_fops_write_60621 wl1273_fm_fops_write 3 60621 NULL
++acl_alloc_stack_init_60630 acl_alloc_stack_init 1 60630 NULL
++__proc_lnet_stats_60647 __proc_lnet_stats 5 60647 NULL
++if_sdio_host_to_card_60666 if_sdio_host_to_card 4 60666 NULL
++ieee80211_if_read_dot11MeshConfirmTimeout_60670 ieee80211_if_read_dot11MeshConfirmTimeout 3 60670 NULL
++vga_rcrt_60731 vga_rcrt 0 60731 NULL
++snd_ice1712_ds_read_60754 snd_ice1712_ds_read 0 60754 NULL
++raid_status_60755 raid_status 5 60755 NULL
++sel_write_checkreqprot_60774 sel_write_checkreqprot 3 60774 NULL
++opticon_write_60775 opticon_write 4 60775 NULL
++acl_alloc_num_60778 acl_alloc_num 1-2 60778 NULL
++snd_pcm_oss_readv3_60792 snd_pcm_oss_readv3 3 60792 NULL
++gfs2_bmap_alloc_60822 gfs2_bmap_alloc 0 60822 NULL
++pwr_tx_with_ps_read_60851 pwr_tx_with_ps_read 3 60851 NULL
++__clone_and_map_data_bio_60861 __clone_and_map_data_bio 4-3 60861 NULL
++alloc_buf_60864 alloc_buf 3-2 60864 NULL
++generic_writepages_60871 generic_writepages 0 60871 NULL
++ext4_update_inline_data_60888 ext4_update_inline_data 3 60888 NULL
++iio_debugfs_read_reg_60908 iio_debugfs_read_reg 3 60908 NULL
++libcfs_sock_ioctl_60915 libcfs_sock_ioctl 0 60915 NULL
++mgt_set_varlen_60916 mgt_set_varlen 4 60916 NULL
++scrub_chunk_60926 scrub_chunk 5 60926 NULL
++submit_extent_page_60928 submit_extent_page 5 60928 NULL
++xfs_rtallocate_extent_size_60939 xfs_rtallocate_extent_size 0 60939 NULL
++pti_char_write_60960 pti_char_write 3 60960 NULL
++mwifiex_alloc_sdio_mpa_buffers_60961 mwifiex_alloc_sdio_mpa_buffers 2-3 60961 NULL
++__a2mp_build_60987 __a2mp_build 3 60987 NULL
++hsc_msg_alloc_60990 hsc_msg_alloc 1 60990 NULL
++ath6kl_lrssi_roam_read_61022 ath6kl_lrssi_roam_read 3 61022 NULL
++graph_depth_write_61024 graph_depth_write 3 61024 NULL
++sdhci_pltfm_register_61031 sdhci_pltfm_register 3 61031 NULL
++lpfc_idiag_queacc_write_61043 lpfc_idiag_queacc_write 3 61043 NULL
++symtab_init_61050 symtab_init 2 61050 NULL
++fuse_send_write_61053 fuse_send_write 0-4 61053 NULL
++bitmap_scnlistprintf_61062 bitmap_scnlistprintf 0-2 61062 NULL
++ahash_align_buffer_size_61070 ahash_align_buffer_size 0-1-2 61070 NULL
++xfs_dabuf_map_61093 xfs_dabuf_map 0 61093 NULL
++get_derived_key_61100 get_derived_key 4 61100 NULL
++mem_cgroup_cache_charge_61101 mem_cgroup_cache_charge 0 61101 NULL
++i40e_calculate_l2fpm_size_61104 i40e_calculate_l2fpm_size 0-4-3-2-1 61104 NULL
++alloc_chrdev_region_61112 alloc_chrdev_region 0 61112 NULL
++__probe_kernel_read_61119 __probe_kernel_read 3 61119 NULL
++vmemmap_alloc_block_buf_61126 vmemmap_alloc_block_buf 1 61126 NULL
++afs_proc_cells_write_61139 afs_proc_cells_write 3 61139 NULL
++pair_device_61175 pair_device 4 61175 NULL nohasharray
++event_oom_late_read_61175 event_oom_late_read 3 61175 &pair_device_61175
++dio_bio_add_page_61178 dio_bio_add_page 0 61178 NULL
++SyS_prctl_61202 SyS_prctl 4 61202 NULL
++arch_hibernation_header_save_61212 arch_hibernation_header_save 0 61212 NULL
++smk_read_ambient_61220 smk_read_ambient 3 61220 NULL
++v9fs_mmap_file_read_61262 v9fs_mmap_file_read 3 61262 NULL
++btrfs_bio_alloc_61270 btrfs_bio_alloc 3 61270 NULL nohasharray
++find_get_pages_tag_61270 find_get_pages_tag 0 61270 &btrfs_bio_alloc_61270 nohasharray
++ifalias_store_61270 ifalias_store 4 61270 &find_get_pages_tag_61270
++vortex_adbdma_getlinearpos_61283 vortex_adbdma_getlinearpos 0 61283 NULL nohasharray
++hfsplus_getxattr_finder_info_61283 hfsplus_getxattr_finder_info 0 61283 &vortex_adbdma_getlinearpos_61283
++nvme_trans_copy_to_user_61288 nvme_trans_copy_to_user 3 61288 NULL
++xfer_from_user_61307 xfer_from_user 3 61307 NULL
++xfrm_user_sec_ctx_size_61320 xfrm_user_sec_ctx_size 0 61320 NULL
++C_SYSC_msgsnd_61330 C_SYSC_msgsnd 3 61330 NULL
++write_file_spectral_short_repeat_61335 write_file_spectral_short_repeat 3 61335 NULL
++st5481_setup_isocpipes_61340 st5481_setup_isocpipes 6-4 61340 NULL
++rx_rx_wa_ba_not_expected_read_61341 rx_rx_wa_ba_not_expected_read 3 61341 NULL
++__dm_get_reserved_ios_61342 __dm_get_reserved_ios 0-3-2 61342 NULL
++f1x_map_sysaddr_to_csrow_61344 f1x_map_sysaddr_to_csrow 2 61344 NULL
++debug_debug4_read_61367 debug_debug4_read 3 61367 NULL
++system_enable_write_61396 system_enable_write 3 61396 NULL
++xfs_zero_remaining_bytes_61423 xfs_zero_remaining_bytes 3 61423 NULL
++unix_stream_sendmsg_61455 unix_stream_sendmsg 4 61455 NULL
++snd_pcm_lib_writev_transfer_61483 snd_pcm_lib_writev_transfer 5-4-2 61483 NULL
++btrfs_item_size_61485 btrfs_item_size 0 61485 NULL
++ocfs2_get_refcount_rec_61514 ocfs2_get_refcount_rec 0 61514 NULL
++erst_errno_61526 erst_errno 0 61526 NULL
++trace_options_core_write_61551 trace_options_core_write 3 61551 NULL
++dvb_net_ioctl_61559 dvb_net_ioctl 2 61559 NULL
++parport_pc_fifo_write_block_dma_61568 parport_pc_fifo_write_block_dma 3 61568 NULL
++fan_proc_write_61569 fan_proc_write 3 61569 NULL
++ieee80211_if_read_rc_rateidx_mask_2ghz_61570 ieee80211_if_read_rc_rateidx_mask_2ghz 3 61570 NULL
++ldlm_pool_rw_atomic_seq_write_61572 ldlm_pool_rw_atomic_seq_write 3 61572 NULL
++seq_open_private_61589 seq_open_private 3 61589 NULL
++ept_gpte_to_gfn_lvl_61591 ept_gpte_to_gfn_lvl 0-1-2 61591 NULL
++netlink_recvmsg_61600 netlink_recvmsg 4 61600 NULL
++nfs4_init_uniform_client_string_61601 nfs4_init_uniform_client_string 3 61601 NULL
++configfs_write_file_61621 configfs_write_file 3 61621 NULL
++ieee80211_if_fmt_hw_queues_61629 ieee80211_if_fmt_hw_queues 3 61629 NULL
++i2o_parm_table_get_61635 i2o_parm_table_get 6 61635 NULL
++snd_pcm_oss_read3_61643 snd_pcm_oss_read3 0-3 61643 NULL nohasharray
++tcf_hashinfo_init_61643 tcf_hashinfo_init 2 61643 &snd_pcm_oss_read3_61643
++resize_stripes_61650 resize_stripes 2 61650 NULL
++ttm_page_pool_free_61661 ttm_page_pool_free 2-0 61661 NULL
++insert_one_name_61668 insert_one_name 7 61668 NULL
++qib_format_hwmsg_61679 qib_format_hwmsg 2 61679 NULL
++lock_loop_61681 lock_loop 1 61681 NULL
++__do_tune_cpucache_61684 __do_tune_cpucache 2 61684 NULL
++filter_read_61692 filter_read 3 61692 NULL
++iov_length_61716 iov_length 0 61716 NULL
++fragmentation_threshold_read_61718 fragmentation_threshold_read 3 61718 NULL
++null_alloc_reqbuf_61719 null_alloc_reqbuf 3 61719 NULL
++read_file_interrupt_61742 read_file_interrupt 3 61742 NULL nohasharray
++read_file_regval_61742 read_file_regval 3 61742 &read_file_interrupt_61742
++SyS_sendto_61763 SyS_sendto 6 61763 NULL
++gfs2_meta_wait_61773 gfs2_meta_wait 0 61773 NULL
++xfs_file_dio_aio_write_61801 xfs_file_dio_aio_write 0 61801 NULL
++mls_compute_context_len_61812 mls_compute_context_len 0 61812 NULL
++bfad_debugfs_write_regwr_61841 bfad_debugfs_write_regwr 3 61841 NULL
++regcache_sync_block_61846 regcache_sync_block 5-4 61846 NULL
++ath9k_hw_def_dump_eeprom_61853 ath9k_hw_def_dump_eeprom 5-4 61853 NULL
++fs_path_prepare_for_add_61854 fs_path_prepare_for_add 2 61854 NULL
++evdev_compute_buffer_size_61863 evdev_compute_buffer_size 0 61863 NULL
++SYSC_lsetxattr_61869 SYSC_lsetxattr 4 61869 NULL
++get_fw_name_61874 get_fw_name 3 61874 NULL
++btrfs_ioctl_clone_61886 btrfs_ioctl_clone 3-4-5 61886 NULL
++lprocfs_write_frac_u64_helper_61897 lprocfs_write_frac_u64_helper 2 61897 NULL
++lov_mds_md_stripecnt_61899 lov_mds_md_stripecnt 0-1 61899 NULL
++clear_refs_write_61904 clear_refs_write 3 61904 NULL
++rx_filter_arp_filter_read_61914 rx_filter_arp_filter_read 3 61914 NULL
++au0828_init_isoc_61917 au0828_init_isoc 3-2-4 61917 NULL
++sctp_sendmsg_61919 sctp_sendmsg 4 61919 NULL
++edac_device_create_instance_61940 edac_device_create_instance 0 61940 NULL
++SyS_kexec_load_61946 SyS_kexec_load 2 61946 NULL
++il4965_ucode_rx_stats_read_61948 il4965_ucode_rx_stats_read 3 61948 NULL
++squashfs_read_id_index_table_61961 squashfs_read_id_index_table 4 61961 NULL
++fix_read_error_61965 fix_read_error 4 61965 NULL
++ocfs2_quota_write_61972 ocfs2_quota_write 4-5 61972 NULL
++fd_locked_ioctl_61978 fd_locked_ioctl 3 61978 NULL
++cow_file_range_61979 cow_file_range 3 61979 NULL
++set_extent_delalloc_61982 set_extent_delalloc 0 61982 NULL
++dequeue_event_62000 dequeue_event 3 62000 NULL
++xt_compat_match_offset_62011 xt_compat_match_offset 0 62011 NULL
++SyS_setxattr_62019 SyS_setxattr 4 62019 NULL
++jffs2_do_unlink_62020 jffs2_do_unlink 4 62020 NULL
++SYSC_select_62024 SYSC_select 1 62024 NULL
++pmcraid_build_passthrough_ioadls_62034 pmcraid_build_passthrough_ioadls 2 62034 NULL
++sctp_user_addto_chunk_62047 sctp_user_addto_chunk 2-3 62047 NULL
++do_pselect_62061 do_pselect 1 62061 NULL
++pcpu_alloc_bootmem_62074 pcpu_alloc_bootmem 2 62074 NULL
++_xfs_log_force_lsn_62083 _xfs_log_force_lsn 0 62083 NULL
++fat_setattr_62084 fat_setattr 0 62084 NULL
++jffs2_security_setxattr_62107 jffs2_security_setxattr 4 62107 NULL
++btrfs_direct_IO_62114 btrfs_direct_IO 4 62114 NULL
++ip_recv_error_62117 ip_recv_error 3 62117 NULL
++generic_block_fiemap_62122 generic_block_fiemap 4 62122 NULL
++llc_ui_header_len_62131 llc_ui_header_len 0 62131 NULL
++kobject_add_varg_62133 kobject_add_varg 0 62133 NULL nohasharray
++qib_diag_write_62133 qib_diag_write 3 62133 &kobject_add_varg_62133
++device_add_attrs_62135 device_add_attrs 0 62135 NULL nohasharray
++ql_status_62135 ql_status 5 62135 &device_add_attrs_62135
++video_usercopy_62151 video_usercopy 2 62151 NULL
++SyS_getxattr_62166 SyS_getxattr 4 62166 NULL
++prism54_wpa_bss_ie_get_62173 prism54_wpa_bss_ie_get 0 62173 NULL
++write_file_dfs_62180 write_file_dfs 3 62180 NULL
++alloc_upcall_62186 alloc_upcall 2 62186 NULL
++sock_kmalloc_62205 sock_kmalloc 2 62205 NULL
++smk_read_syslog_62227 smk_read_syslog 3 62227 NULL
++SYSC_setgroups16_62232 SYSC_setgroups16 1 62232 NULL
++nfsd_read_file_62241 nfsd_read_file 6 62241 NULL
++subtract_dirty_62242 subtract_dirty 2-3 62242 NULL
++ion_handle_test_dma_62262 ion_handle_test_dma 4-5 62262 NULL
++il_dbgfs_sram_read_62296 il_dbgfs_sram_read 3 62296 NULL
++sparse_early_usemaps_alloc_pgdat_section_62304 sparse_early_usemaps_alloc_pgdat_section 2 62304 NULL
++subsystem_filter_read_62310 subsystem_filter_read 3 62310 NULL
++Wb35Reg_BurstWrite_62327 Wb35Reg_BurstWrite 4 62327 NULL
++subseq_list_62332 subseq_list 3-0 62332 NULL
++ll_statahead_max_seq_write_62333 ll_statahead_max_seq_write 3 62333 NULL
++flash_write_62354 flash_write 3 62354 NULL
++xfpregs_set_62363 xfpregs_set 4 62363 NULL
++rx_rx_timeout_read_62389 rx_rx_timeout_read 3 62389 NULL
++altera_irscan_62396 altera_irscan 2 62396 NULL
++set_ssp_62411 set_ssp 4 62411 NULL
++udf_expand_file_adinicb_62470 udf_expand_file_adinicb 0 62470 NULL
++persistent_ram_new_62493 persistent_ram_new 1-2 62493 NULL
++ext_rts51x_sd_execute_read_data_62501 ext_rts51x_sd_execute_read_data 9-11 62501 NULL
++pep_sendmsg_62524 pep_sendmsg 4 62524 NULL
++test_iso_queue_62534 test_iso_queue 5 62534 NULL
++debugfs_read_62535 debugfs_read 3 62535 NULL
++sco_sock_sendmsg_62542 sco_sock_sendmsg 4 62542 NULL
++qib_refresh_qsfp_cache_62547 qib_refresh_qsfp_cache 0 62547 NULL
++link_send_sections_long_62557 link_send_sections_long 3 62557 NULL
++compute_bitstructs_62570 compute_bitstructs 0 62570 NULL
++xfrm_user_policy_62573 xfrm_user_policy 4 62573 NULL
++compat_SyS_rt_sigpending_62580 compat_SyS_rt_sigpending 2 62580 NULL
++get_subdir_62581 get_subdir 3 62581 NULL
++nfsd_vfs_read_62605 nfsd_vfs_read 6 62605 NULL
++tipc_port_recv_sections_62609 tipc_port_recv_sections 3 62609 NULL
++dut_mode_write_62630 dut_mode_write 3 62630 NULL
++vfs_fsync_range_62635 vfs_fsync_range 0 62635 NULL
++lpfc_sli4_queue_alloc_62646 lpfc_sli4_queue_alloc 3 62646 NULL
++printer_req_alloc_62687 printer_req_alloc 2 62687 NULL
++bioset_integrity_create_62708 bioset_integrity_create 2 62708 NULL
++gfs2_log_write_62717 gfs2_log_write 3 62717 NULL
++rdm_62719 rdm 0 62719 NULL
++add_to_page_cache_62724 add_to_page_cache 0 62724 NULL
++obd_ioctl_popdata_62741 obd_ioctl_popdata 3 62741 NULL
++key_replays_read_62746 key_replays_read 3 62746 NULL
++lov_verify_lmm_62747 lov_verify_lmm 2 62747 NULL
++mwifiex_rdeeprom_write_62754 mwifiex_rdeeprom_write 3 62754 NULL
++ax25_sendmsg_62770 ax25_sendmsg 4 62770 NULL
++C_SYSC_ipc_62776 C_SYSC_ipc 3 62776 NULL
++SyS_sched_getaffinity_62786 SyS_sched_getaffinity 2 62786 NULL
++dm_stats_account_io_62787 dm_stats_account_io 3 62787 NULL
++tracing_total_entries_read_62817 tracing_total_entries_read 3 62817 NULL
++__rounddown_pow_of_two_62836 __rounddown_pow_of_two 0 62836 NULL
++bio_get_nr_vecs_62838 bio_get_nr_vecs 0 62838 NULL
++xlog_recover_add_to_trans_62839 xlog_recover_add_to_trans 4 62839 NULL
++rx_fcs_err_read_62844 rx_fcs_err_read 3 62844 NULL
++read_nic_io_dword_62859 read_nic_io_dword 0 62859 NULL
++l2tp_ip6_recvmsg_62874 l2tp_ip6_recvmsg 4 62874 NULL
++xfs_rtmodify_range_62877 xfs_rtmodify_range 0 62877 NULL
++aoechr_write_62883 aoechr_write 3 62883 NULL
++if_spi_host_to_card_62890 if_spi_host_to_card 4 62890 NULL
++ocfs2_validate_gd_parent_62905 ocfs2_validate_gd_parent 0 62905 NULL
++mempool_create_slab_pool_62907 mempool_create_slab_pool 1 62907 NULL
++getdqbuf_62908 getdqbuf 1 62908 NULL
++ll_statahead_agl_seq_write_62928 ll_statahead_agl_seq_write 3 62928 NULL
++agp_create_user_memory_62955 agp_create_user_memory 1 62955 NULL
++kstrtoull_from_user_63026 kstrtoull_from_user 2 63026 NULL nohasharray
++xfs_trans_reserve_63026 xfs_trans_reserve 0 63026 &kstrtoull_from_user_63026
++__vb2_perform_fileio_63033 __vb2_perform_fileio 3 63033 NULL
++pipeline_defrag_to_csum_swi_read_63037 pipeline_defrag_to_csum_swi_read 3 63037 NULL
++scsi_host_alloc_63041 scsi_host_alloc 2 63041 NULL
++unlink1_63059 unlink1 3 63059 NULL
++xen_set_nslabs_63066 xen_set_nslabs 0 63066 NULL
++iwl_dbgfs_fw_rx_stats_read_63070 iwl_dbgfs_fw_rx_stats_read 3 63070 NULL
++sep_prepare_input_output_dma_table_in_dcb_63087 sep_prepare_input_output_dma_table_in_dcb 4-5 63087 NULL
++iwl_dbgfs_sensitivity_read_63116 iwl_dbgfs_sensitivity_read 3 63116 NULL
++ext4_chunk_trans_blocks_63123 ext4_chunk_trans_blocks 0-2 63123 NULL
++smk_write_revoke_subj_63173 smk_write_revoke_subj 3 63173 NULL
++SyS_syslog_63178 SyS_syslog 3 63178 NULL
++vme_master_read_63221 vme_master_read 0 63221 NULL
++SyS_gethostname_63227 SyS_gethostname 2 63227 NULL
++ptp_read_63251 ptp_read 4 63251 NULL
++xfs_dir2_leaf_getdents_63262 xfs_dir2_leaf_getdents 3 63262 NULL
++raid5_resize_63306 raid5_resize 2 63306 NULL
++ath10k_read_fw_dbglog_63323 ath10k_read_fw_dbglog 3 63323 NULL
++proc_info_read_63344 proc_info_read 3 63344 NULL
++ps_upsd_max_sptime_read_63362 ps_upsd_max_sptime_read 3 63362 NULL
++idmouse_read_63374 idmouse_read 3 63374 NULL
++usbnet_read_cmd_nopm_63388 usbnet_read_cmd_nopm 7 63388 NULL nohasharray
++edac_pci_alloc_ctl_info_63388 edac_pci_alloc_ctl_info 1 63388 &usbnet_read_cmd_nopm_63388
++rxpipe_missed_beacon_host_int_trig_rx_data_read_63405 rxpipe_missed_beacon_host_int_trig_rx_data_read 3 63405 NULL
++nouveau_event_create_63411 nouveau_event_create 1 63411 NULL
++l2cap_sock_sendmsg_63427 l2cap_sock_sendmsg 4 63427 NULL
++nfsd_symlink_63442 nfsd_symlink 6 63442 NULL
++si5351_bulk_write_63468 si5351_bulk_write 2-3 63468 NULL
++snd_info_entry_write_63474 snd_info_entry_write 3 63474 NULL
++reada_find_extent_63486 reada_find_extent 2 63486 NULL
++read_kcore_63488 read_kcore 3 63488 NULL
++snd_pcm_plug_write_transfer_63503 snd_pcm_plug_write_transfer 0-3 63503 NULL
++efx_mcdi_rpc_async_63529 efx_mcdi_rpc_async 4-5 63529 NULL
++ubi_more_leb_change_data_63534 ubi_more_leb_change_data 4 63534 NULL nohasharray
++generic_cont_expand_simple_63534 generic_cont_expand_simple 0 63534 &ubi_more_leb_change_data_63534
++write_file_spectral_period_63536 write_file_spectral_period 3 63536 NULL
++if_sdio_read_scratch_63540 if_sdio_read_scratch 0 63540 NULL
++append_to_buffer_63550 append_to_buffer 3 63550 NULL
++kvm_write_guest_page_63555 kvm_write_guest_page 5 63555 NULL
++rproc_alloc_63577 rproc_alloc 5 63577 NULL
++write_debug_level_63613 write_debug_level 3 63613 NULL
++__spi_validate_63618 __spi_validate 0 63618 NULL
++symbol_build_supp_rates_63634 symbol_build_supp_rates 0 63634 NULL
++proc_loginuid_write_63648 proc_loginuid_write 3 63648 NULL
++ValidateDSDParamsChecksum_63654 ValidateDSDParamsChecksum 3 63654 NULL
++ldlm_cli_enqueue_63657 ldlm_cli_enqueue 8 63657 NULL
++hidraw_ioctl_63658 hidraw_ioctl 2 63658 NULL
++vbi_read_63673 vbi_read 3 63673 NULL
++write_file_spectral_fft_period_63696 write_file_spectral_fft_period 3 63696 NULL
++nouveau_object_create__63715 nouveau_object_create_ 5 63715 NULL
++btrfs_insert_delayed_dir_index_63720 btrfs_insert_delayed_dir_index 4 63720 NULL
++selinux_secctx_to_secid_63744 selinux_secctx_to_secid 2 63744 NULL
++snd_pcm_oss_read1_63771 snd_pcm_oss_read1 3 63771 NULL
++snd_opl4_mem_proc_read_63774 snd_opl4_mem_proc_read 5 63774 NULL
++spidev_compat_ioctl_63778 spidev_compat_ioctl 2 63778 NULL
++mwifiex_11n_create_rx_reorder_tbl_63806 mwifiex_11n_create_rx_reorder_tbl 4 63806 NULL
++copy_nodes_to_user_63807 copy_nodes_to_user 2 63807 NULL
++prepare_copy_63826 prepare_copy 2 63826 NULL
++sel_write_load_63830 sel_write_load 3 63830 NULL
++ll_readlink_63836 ll_readlink 3 63836 NULL
++proc_pid_attr_write_63845 proc_pid_attr_write 3 63845 NULL
++xhci_alloc_stream_info_63902 xhci_alloc_stream_info 3 63902 NULL
++uvc_alloc_urb_buffers_63922 uvc_alloc_urb_buffers 0-2-3 63922 NULL
++snd_compr_write_63923 snd_compr_write 3 63923 NULL
++afs_send_simple_reply_63940 afs_send_simple_reply 3 63940 NULL
++__team_options_register_63941 __team_options_register 3 63941 NULL
++macvtap_recvmsg_63949 macvtap_recvmsg 4 63949 NULL
++xfs_iflush_63956 xfs_iflush 0 63956 NULL
++set_bredr_63975 set_bredr 4 63975 NULL
++construct_key_and_link_63985 construct_key_and_link 3 63985 NULL
++rs_extent_to_bm_page_63996 rs_extent_to_bm_page 0-1 63996 NULL
++read_file_frameerrors_64001 read_file_frameerrors 3 64001 NULL
++SyS_rt_sigpending_64018 SyS_rt_sigpending 2 64018 NULL
++dbAllocDmapLev_64030 dbAllocDmapLev 0 64030 NULL
++SyS_fsetxattr_64039 SyS_fsetxattr 4 64039 NULL
++__generic_file_aio_write_64049 __generic_file_aio_write 0 64049 NULL
++get_u8_64076 get_u8 0 64076 NULL
++xilly_malloc_64077 xilly_malloc 2 64077 NULL
++sl_realloc_bufs_64086 sl_realloc_bufs 2 64086 NULL
++vmci_handle_arr_get_size_64088 vmci_handle_arr_get_size 0 64088 NULL
++lbs_highrssi_read_64089 lbs_highrssi_read 3 64089 NULL
++gfs2_inplace_reserve_64096 gfs2_inplace_reserve 0 64096 NULL nohasharray
++SyS_set_mempolicy_64096 SyS_set_mempolicy 3 64096 &gfs2_inplace_reserve_64096
++to_bytes_64103 to_bytes 0-1 64103 NULL
++SyS_mq_timedsend_64107 SyS_mq_timedsend 3 64107 NULL
++rdma_addr_size_64116 rdma_addr_size 0 64116 NULL
++do_load_xattr_datum_64118 do_load_xattr_datum 0 64118 NULL
++bypass_wd_write_64120 bypass_wd_write 3 64120 NULL
++ext4_prepare_inline_data_64124 ext4_prepare_inline_data 3 64124 NULL
++init_bch_64130 init_bch 1-2 64130 NULL
++ablkcipher_copy_iv_64140 ablkcipher_copy_iv 3 64140 NULL
++dlfb_ops_write_64150 dlfb_ops_write 3 64150 NULL
++cpumask_scnprintf_64170 cpumask_scnprintf 0-2 64170 NULL
++kernfs_iop_setxattr_64220 kernfs_iop_setxattr 4 64220 NULL
++xfs_vm_direct_IO_64223 xfs_vm_direct_IO 4 64223 NULL
++read_pulse_64227 read_pulse 0-3 64227 NULL
++ea_len_64229 ea_len 0 64229 NULL
++xfs_rtmodify_summary_64265 xfs_rtmodify_summary 0 64265 NULL
++io_capture_transfer_64276 io_capture_transfer 4 64276 NULL
++btrfs_file_extent_offset_64278 btrfs_file_extent_offset 0 64278 NULL
++sta_current_tx_rate_read_64286 sta_current_tx_rate_read 3 64286 NULL
++xfs_dir_cilookup_result_64288 xfs_dir_cilookup_result 3-0 64288 NULL nohasharray
++event_id_read_64288 event_id_read 3 64288 &xfs_dir_cilookup_result_64288
++ocfs2_block_check_validate_bhs_64302 ocfs2_block_check_validate_bhs 0 64302 NULL
++snd_hda_get_sub_nodes_64304 snd_hda_get_sub_nodes 0 64304 NULL
++error_error_bar_retry_read_64305 error_error_bar_retry_read 3 64305 NULL
++sisusbcon_clear_64329 sisusbcon_clear 4-3-5 64329 NULL
++ts_write_64336 ts_write 3 64336 NULL
++usbtmc_write_64340 usbtmc_write 3 64340 NULL
++bnx2x_vfop_mcast_cmd_64354 bnx2x_vfop_mcast_cmd 5 64354 NULL
++user_regset_copyin_64360 user_regset_copyin 7 64360 NULL
++wlc_phy_loadsampletable_nphy_64367 wlc_phy_loadsampletable_nphy 3 64367 NULL
++reg_create_64372 reg_create 5 64372 NULL
++ilo_write_64378 ilo_write 3 64378 NULL
++btrfs_map_block_64379 btrfs_map_block 3 64379 NULL
++vmcs_readl_64381 vmcs_readl 0 64381 NULL
++nilfs_alloc_seg_bio_64383 nilfs_alloc_seg_bio 3 64383 NULL
++ir_lirc_transmit_ir_64403 ir_lirc_transmit_ir 3 64403 NULL
++pidlist_allocate_64404 pidlist_allocate 1 64404 NULL
++rx_hdr_overflow_read_64407 rx_hdr_overflow_read 3 64407 NULL
++snd_card_create_64418 snd_card_create 4 64418 NULL nohasharray
++keyctl_get_security_64418 keyctl_get_security 3 64418 &snd_card_create_64418
++oom_adj_write_64428 oom_adj_write 3 64428 NULL
++read_file_spectral_short_repeat_64431 read_file_spectral_short_repeat 3 64431 NULL
++ax25_recvmsg_64441 ax25_recvmsg 4 64441 NULL
++single_open_size_64483 single_open_size 4 64483 NULL
++p54_parse_rssical_64493 p54_parse_rssical 3 64493 NULL nohasharray
++xfs_inode_ag_walk_64493 xfs_inode_ag_walk 0 64493 &p54_parse_rssical_64493
++msg_data_sz_64503 msg_data_sz 0 64503 NULL
++remove_uuid_64505 remove_uuid 4 64505 NULL
++crypto_blkcipher_alignmask_64520 crypto_blkcipher_alignmask 0 64520 NULL
++opera1_usb_i2c_msgxfer_64521 opera1_usb_i2c_msgxfer 4 64521 NULL
++iwl_dbgfs_ucode_tracing_write_64524 iwl_dbgfs_ucode_tracing_write 3 64524 NULL
++ses_send_diag_64527 ses_send_diag 4 64527 NULL
++prctl_set_mm_64538 prctl_set_mm 3 64538 NULL
++SyS_bind_64544 SyS_bind 3 64544 NULL
++rbd_obj_read_sync_64554 rbd_obj_read_sync 4-3 64554 NULL
++__btrfs_prealloc_file_range_64557 __btrfs_prealloc_file_range 3 64557 NULL
++__spi_sync_64561 __spi_sync 0 64561 NULL nohasharray
++ll_max_rw_chunk_seq_write_64561 ll_max_rw_chunk_seq_write 3 64561 &__spi_sync_64561
++__apei_exec_run_64563 __apei_exec_run 0 64563 NULL
++kstrtoul_from_user_64569 kstrtoul_from_user 2 64569 NULL
++do_erase_64574 do_erase 4 64574 NULL
++nla_get_s32_64603 nla_get_s32 0 64603 NULL
++fanotify_write_64623 fanotify_write 3 64623 NULL
++regmap_read_debugfs_64658 regmap_read_debugfs 5 64658 NULL
++ocfs2_read_xattr_block_64661 ocfs2_read_xattr_block 0 64661 NULL nohasharray
++tlbflush_read_file_64661 tlbflush_read_file 3 64661 &ocfs2_read_xattr_block_64661
++efx_tsoh_get_buffer_64664 efx_tsoh_get_buffer 3 64664 NULL
++rx_rx_out_of_mpdu_nodes_read_64668 rx_rx_out_of_mpdu_nodes_read 3 64668 NULL
++nr_free_zone_pages_64680 nr_free_zone_pages 0 64680 NULL
++snd_pcm_oss_capture_position_fixup_64713 snd_pcm_oss_capture_position_fixup 0 64713 NULL
++dapm_bias_read_file_64715 dapm_bias_read_file 3 64715 NULL
++atomic_add_return_64720 atomic_add_return 0-1 64720 NULL
++i2400m_msg_to_dev_64722 i2400m_msg_to_dev 3 64722 NULL
++AscGetChipVersion_64737 AscGetChipVersion 0 64737 NULL
++squashfs_read_inode_lookup_table_64739 squashfs_read_inode_lookup_table 4 64739 NULL
++bio_map_kern_64751 bio_map_kern 3 64751 NULL
++rt2x00debug_write_csr_64753 rt2x00debug_write_csr 3 64753 NULL
++message_for_md_64777 message_for_md 5 64777 NULL
++isr_low_rssi_read_64789 isr_low_rssi_read 3 64789 NULL
++regmap_reg_ranges_read_file_64798 regmap_reg_ranges_read_file 3 64798 NULL
++nfsctl_transaction_write_64800 nfsctl_transaction_write 3 64800 NULL
++rfkill_fop_write_64808 rfkill_fop_write 3 64808 NULL
++proc_projid_map_write_64810 proc_projid_map_write 3 64810 NULL
++megaraid_change_queue_depth_64815 megaraid_change_queue_depth 2 64815 NULL
++ecryptfs_send_miscdev_64816 ecryptfs_send_miscdev 2 64816 NULL
++do_kimage_alloc_64827 do_kimage_alloc 3 64827 NULL
++altera_set_dr_pre_64862 altera_set_dr_pre 2 64862 NULL
++pci_vc_do_save_buffer_64876 pci_vc_do_save_buffer 0 64876 NULL
++lprocfs_write_u64_helper_64880 lprocfs_write_u64_helper 2 64880 NULL
++ffs_epfile_io_64886 ffs_epfile_io 3 64886 NULL
++xfs_imap_lookup_64906 xfs_imap_lookup 0 64906 NULL
++ieee80211_if_read_ave_beacon_64924 ieee80211_if_read_ave_beacon 3 64924 NULL
++ip_options_get_from_user_64958 ip_options_get_from_user 4 64958 NULL
++traceprobe_probes_write_64969 traceprobe_probes_write 3 64969 NULL
++suspend_dtim_interval_read_64971 suspend_dtim_interval_read 3 64971 NULL
++crypto_ahash_digestsize_65014 crypto_ahash_digestsize 0 65014 NULL
++insert_dent_65034 insert_dent 7 65034 NULL
++snd_hda_get_pin_label_65035 snd_hda_get_pin_label 5 65035 NULL
++ext4_ind_trans_blocks_65053 ext4_ind_trans_blocks 0-2 65053 NULL
++pcibios_enable_device_65059 pcibios_enable_device 0 65059 NULL
++__alloc_bootmem_node_high_65076 __alloc_bootmem_node_high 2 65076 NULL
++batadv_socket_write_65083 batadv_socket_write 3 65083 NULL
++ocfs2_truncate_cluster_pages_65086 ocfs2_truncate_cluster_pages 2 65086 NULL
++ath9k_dump_mci_btcoex_65090 ath9k_dump_mci_btcoex 3-0 65090 NULL
++generic_ocp_write_65107 generic_ocp_write 4 65107 NULL
++__xfs_bmapi_allocate_65142 __xfs_bmapi_allocate 0 65142 NULL
++rx_rx_done_read_65217 rx_rx_done_read 3 65217 NULL
++print_endpoint_stat_65232 print_endpoint_stat 3-4-0 65232 NULL
++whci_n_caps_65247 whci_n_caps 0 65247 NULL
++kmalloc_parameter_65279 kmalloc_parameter 1 65279 NULL
++xfs_btree_check_ptr_65281 xfs_btree_check_ptr 0 65281 NULL
++compat_core_sys_select_65285 compat_core_sys_select 1 65285 NULL
++mpi_set_buffer_65294 mpi_set_buffer 3 65294 NULL
++redirected_tty_write_65297 redirected_tty_write 3 65297 NULL
++get_var_len_65304 get_var_len 0 65304 NULL
++unpack_array_65318 unpack_array 0 65318 NULL
++pci_vpd_find_tag_65325 pci_vpd_find_tag 0-2 65325 NULL
++rts51x_get_rsp_65334 rts51x_get_rsp 2 65334 NULL
++dccp_setsockopt_service_65336 dccp_setsockopt_service 4 65336 NULL
++dma_rx_requested_read_65354 dma_rx_requested_read 3 65354 NULL
++alloc_cpu_rmap_65363 alloc_cpu_rmap 1 65363 NULL
++SyS_writev_65372 SyS_writev 3 65372 NULL
++__alloc_bootmem_nopanic_65397 __alloc_bootmem_nopanic 1 65397 NULL
++trace_seq_to_user_65398 trace_seq_to_user 3 65398 NULL
++__read_vmcore_65402 __read_vmcore 2 65402 NULL
++usb_ep_enable_65405 usb_ep_enable 0 65405 NULL
++ocfs2_write_begin_nolock_65410 ocfs2_write_begin_nolock 3-4 65410 NULL
++device_add_groups_65423 device_add_groups 0 65423 NULL
++xpc_kzalloc_cacheline_aligned_65433 xpc_kzalloc_cacheline_aligned 1 65433 NULL
++usb_alloc_coherent_65444 usb_alloc_coherent 2 65444 NULL
++il_dbgfs_wd_timeout_write_65464 il_dbgfs_wd_timeout_write 3 65464 NULL
++clear_user_65470 clear_user 2 65470 NULL
++xfs_alloc_lookup_ge_65481 xfs_alloc_lookup_ge 0 65481 NULL
++dpcm_state_read_file_65489 dpcm_state_read_file 3 65489 NULL
++lookup_inline_extent_backref_65493 lookup_inline_extent_backref 9 65493 NULL
++nvme_trans_standard_inquiry_page_65526 nvme_trans_standard_inquiry_page 4 65526 NULL
++tree_mod_log_eb_copy_65535 tree_mod_log_eb_copy 6 65535 NULL
+diff --git a/tools/gcc/size_overflow_plugin/size_overflow_hash_aux.data b/tools/gcc/size_overflow_plugin/size_overflow_hash_aux.data
+new file mode 100644
+index 0000000..560cd7b
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/size_overflow_hash_aux.data
+@@ -0,0 +1,92 @@
++spa_set_aux_vdevs_746 spa_set_aux_vdevs 3 746 NULL
++zfs_lookup_2144 zfs_lookup 0 2144 NULL
++mappedread_2627 mappedread 2 2627 NULL
++vdev_disk_dio_alloc_2957 vdev_disk_dio_alloc 1 2957 NULL
++nv_alloc_pushpage_spl_4286 nv_alloc_pushpage_spl 2 4286 NULL
++zpl_xattr_get_4574 zpl_xattr_get 0 4574 NULL
++sa_replace_all_by_template_5699 sa_replace_all_by_template 3 5699 NULL
++dmu_write_6048 dmu_write 4-3 6048 NULL
++dmu_buf_hold_array_6095 dmu_buf_hold_array 4-3 6095 NULL
++update_pages_6225 update_pages 2-3 6225 NULL
++bio_nr_pages_7117 bio_nr_pages 0-2 7117 NULL
++dmu_buf_hold_array_by_bonus_8562 dmu_buf_hold_array_by_bonus 3-2 8562 NULL
++zpios_dmu_write_8858 zpios_dmu_write 4-5 8858 NULL
++ddi_copyout_9401 ddi_copyout 3 9401 NULL
++avl_numnodes_12384 avl_numnodes 0 12384 NULL
++dmu_write_uio_dnode_12473 dmu_write_uio_dnode 3 12473 NULL
++dmu_xuio_init_12866 dmu_xuio_init 2 12866 NULL
++zpl_read_common_14389 zpl_read_common 0 14389 NULL
++dmu_snapshot_realname_14632 dmu_snapshot_realname 4 14632 NULL
++kmem_alloc_debug_14852 kmem_alloc_debug 1 14852 NULL
++kmalloc_node_nofail_15151 kmalloc_node_nofail 1 15151 NULL
++dmu_write_uio_16351 dmu_write_uio 4 16351 NULL
++zfs_log_write_16524 zfs_log_write 6-5 16524 NULL
++sa_build_layouts_16910 sa_build_layouts 3 16910 NULL
++dsl_dir_namelen_17053 dsl_dir_namelen 0 17053 NULL
++kcopy_copy_to_user_17336 kcopy_copy_to_user 5 17336 NULL
++sa_add_layout_entry_17507 sa_add_layout_entry 3 17507 NULL
++sa_attr_table_setup_18029 sa_attr_table_setup 3 18029 NULL
++uiocopy_18680 uiocopy 2 18680 NULL
++dmu_buf_hold_array_by_dnode_19125 dmu_buf_hold_array_by_dnode 2-3 19125 NULL
++zpl_acl_from_xattr_21141 zpl_acl_from_xattr 2 21141 NULL
++dsl_pool_tx_assign_init_22518 dsl_pool_tx_assign_init 2 22518 NULL
++nvlist_lookup_byte_array_22527 nvlist_lookup_byte_array 0 22527 NULL
++sa_replace_all_by_template_locked_22533 sa_replace_all_by_template_locked 3 22533 NULL
++tsd_hash_table_init_22559 tsd_hash_table_init 1 22559 NULL
++spa_vdev_remove_aux_23966 spa_vdev_remove_aux 4 23966 NULL
++zpl_xattr_acl_set_access_24129 zpl_xattr_acl_set_access 4 24129 NULL
++dmu_assign_arcbuf_24622 dmu_assign_arcbuf 2 24622 NULL
++zap_lookup_norm_25166 zap_lookup_norm 9 25166 NULL
++dmu_prealloc_25456 dmu_prealloc 4-3 25456 NULL
++kmalloc_nofail_26347 kmalloc_nofail 1 26347 NULL
++zfsctl_snapshot_zpath_27578 zfsctl_snapshot_zpath 2 27578 NULL
++zpios_dmu_read_30015 zpios_dmu_read 4-5 30015 NULL
++splat_write_30943 splat_write 3 30943 NULL
++zpl_xattr_get_sa_31183 zpl_xattr_get_sa 0 31183 NULL
++dmu_read_uio_31467 dmu_read_uio 4 31467 NULL
++zfs_replay_fuids_31479 zfs_replay_fuids 4 31479 NULL
++spa_history_log_to_phys_31632 spa_history_log_to_phys 0-1 31632 NULL
++__zpl_xattr_get_32601 __zpl_xattr_get 0 32601 NULL
++proc_copyout_string_34049 proc_copyout_string 2 34049 NULL
++nv_alloc_sleep_spl_34544 nv_alloc_sleep_spl 2 34544 NULL
++nv_alloc_nosleep_spl_34761 nv_alloc_nosleep_spl 2 34761 NULL
++zap_leaf_array_match_36922 zap_leaf_array_match 4 36922 NULL
++copyinstr_36980 copyinstr 3 36980 NULL
++zpl_xattr_acl_set_default_37864 zpl_xattr_acl_set_default 4 37864 NULL
++splat_read_38116 splat_read 3 38116 NULL
++sa_setup_38756 sa_setup 4 38756 NULL
++vdev_disk_physio_39898 vdev_disk_physio 3 39898 NULL
++arc_buf_size_39982 arc_buf_size 0 39982 NULL
++kzalloc_nofail_40719 kzalloc_nofail 1 40719 NULL
++fuidstr_to_sid_40777 fuidstr_to_sid 4 40777 NULL
++vdev_raidz_matrix_reconstruct_40852 vdev_raidz_matrix_reconstruct 2-3 40852 NULL
++sa_find_layout_40892 sa_find_layout 4 40892 NULL
++zpl_xattr_get_dir_41918 zpl_xattr_get_dir 0 41918 NULL
++zfs_sa_get_xattr_42600 zfs_sa_get_xattr 0 42600 NULL
++zpl_xattr_acl_set_42808 zpl_xattr_acl_set 4 42808 NULL
++xdr_dec_array_43091 xdr_dec_array 5 43091 NULL
++dsl_dataset_namelen_43136 dsl_dataset_namelen 0 43136 NULL
++kcopy_write_43683 kcopy_write 3 43683 NULL
++uiomove_44355 uiomove 2 44355 NULL
++dmu_read_44418 dmu_read 4-3 44418 NULL
++ddi_copyin_44846 ddi_copyin 3 44846 NULL
++kcopy_do_get_45061 kcopy_do_get 5 45061 NULL
++copyin_45945 copyin 3 45945 NULL
++zil_itx_create_46555 zil_itx_create 2 46555 NULL
++dmu_write_uio_dbuf_48064 dmu_write_uio_dbuf 3 48064 NULL
++blk_rq_pos_48233 blk_rq_pos 0 48233 NULL
++spa_history_write_49650 spa_history_write 3 49650 NULL
++kcopy_copy_pages_to_user_49823 kcopy_copy_pages_to_user 3-4 49823 NULL
++zfs_log_write_50162 zfs_log_write 6-5 50162 NULL
++i_fm_alloc_51038 i_fm_alloc 2 51038 NULL
++copyout_51409 copyout 3 51409 NULL
++zvol_log_write_54898 zvol_log_write 4-3 54898 NULL
++zfs_acl_node_alloc_55641 zfs_acl_node_alloc 1 55641 NULL
++get_nvlist_56685 get_nvlist 2 56685 NULL
++zprop_get_numprops_56820 zprop_get_numprops 0 56820 NULL
++splat_taskq_test4_common_59829 splat_taskq_test4_common 5 59829 NULL
++zfs_replay_domain_cnt_61399 zfs_replay_domain_cnt 0 61399 NULL
++zpios_write_61823 zpios_write 3 61823 NULL
++proc_copyin_string_62019 proc_copyin_string 4 62019 NULL
++random_get_pseudo_bytes_64611 random_get_pseudo_bytes 2 64611 NULL
++zpios_read_64734 zpios_read 3 64734 NULL
+diff --git a/tools/gcc/size_overflow_plugin/size_overflow_plugin.c b/tools/gcc/size_overflow_plugin/size_overflow_plugin.c
+new file mode 100644
+index 0000000..95f7abd
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/size_overflow_plugin.c
+@@ -0,0 +1,259 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++int plugin_is_GPL_compatible;
++
++tree report_size_overflow_decl;
++
++tree size_overflow_type_HI;
++tree size_overflow_type_SI;
++tree size_overflow_type_DI;
++tree size_overflow_type_TI;
++
++static struct plugin_info size_overflow_plugin_info = {
++	.version	= "20140725",
++	.help		= "no-size-overflow\tturn off size overflow checking\n",
++};
++
++static tree handle_size_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
++{
++	unsigned int arg_count;
++	enum tree_code code = TREE_CODE(*node);
++
++	switch (code) {
++	case FUNCTION_DECL:
++		arg_count = type_num_arguments(TREE_TYPE(*node));
++		break;
++	case FUNCTION_TYPE:
++	case METHOD_TYPE:
++		arg_count = type_num_arguments(*node);
++		break;
++	default:
++		*no_add_attrs = true;
++		error("%s: %qE attribute only applies to functions", __func__, name);
++		return NULL_TREE;
++	}
++
++	for (; args; args = TREE_CHAIN(args)) {
++		tree position = TREE_VALUE(args);
++		if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_LOW(position) > arg_count ) {
++			error("%s: parameter %u is outside range.", __func__, (unsigned int)TREE_INT_CST_LOW(position));
++			*no_add_attrs = true;
++		}
++	}
++	return NULL_TREE;
++}
++
++static tree handle_intentional_overflow_attribute(tree *node, tree __unused name, tree args, int __unused flags, bool *no_add_attrs)
++{
++	unsigned int arg_count;
++	enum tree_code code = TREE_CODE(*node);
++
++	switch (code) {
++	case FUNCTION_DECL:
++		arg_count = type_num_arguments(TREE_TYPE(*node));
++		break;
++	case FUNCTION_TYPE:
++	case METHOD_TYPE:
++		arg_count = type_num_arguments(*node);
++		break;
++	case FIELD_DECL:
++		return NULL_TREE;
++	default:
++		*no_add_attrs = true;
++		error("%qE attribute only applies to functions", name);
++		return NULL_TREE;
++	}
++
++	if (TREE_INT_CST_HIGH(TREE_VALUE(args)) != 0)
++		return NULL_TREE;
++
++	for (; args; args = TREE_CHAIN(args)) {
++		tree position = TREE_VALUE(args);
++		if (TREE_CODE(position) != INTEGER_CST || TREE_INT_CST_LOW(position) > arg_count ) {
++			error("%s: parameter %u is outside range.", __func__, (unsigned int)TREE_INT_CST_LOW(position));
++			*no_add_attrs = true;
++		}
++	}
++	return NULL_TREE;
++}
++
++static struct attribute_spec size_overflow_attr = {
++	.name				= "size_overflow",
++	.min_length			= 1,
++	.max_length			= -1,
++	.decl_required			= true,
++	.type_required			= false,
++	.function_type_required		= false,
++	.handler			= handle_size_overflow_attribute,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity		= false
++#endif
++};
++
++static struct attribute_spec intentional_overflow_attr = {
++	.name				= "intentional_overflow",
++	.min_length			= 1,
++	.max_length			= -1,
++	.decl_required			= true,
++	.type_required			= false,
++	.function_type_required		= false,
++	.handler			= handle_intentional_overflow_attribute,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity		= false
++#endif
++};
++
++static void register_attributes(void __unused *event_data, void __unused *data)
++{
++	register_attribute(&size_overflow_attr);
++	register_attribute(&intentional_overflow_attr);
++}
++
++static tree create_typedef(tree type, const char* ident)
++{
++	tree new_type, decl;
++
++	new_type = build_variant_type_copy(type);
++	decl = build_decl(BUILTINS_LOCATION, TYPE_DECL, get_identifier(ident), new_type);
++	DECL_ORIGINAL_TYPE(decl) = type;
++	TYPE_NAME(new_type) = decl;
++	return new_type;
++}
++
++// Create the noreturn report_size_overflow() function decl.
++static void size_overflow_start_unit(void __unused *gcc_data, void __unused *user_data)
++{
++	tree const_char_ptr_type_node;
++	tree fntype;
++
++	const_char_ptr_type_node = build_pointer_type(build_type_variant(char_type_node, 1, 0));
++
++	size_overflow_type_HI = create_typedef(intHI_type_node, "size_overflow_type_HI");
++	size_overflow_type_SI = create_typedef(intSI_type_node, "size_overflow_type_SI");
++	size_overflow_type_DI = create_typedef(intDI_type_node, "size_overflow_type_DI");
++	size_overflow_type_TI = create_typedef(intTI_type_node, "size_overflow_type_TI");
++
++	// void report_size_overflow(const char *loc_file, unsigned int loc_line, const char *current_func, const char *ssa_var)
++	fntype = build_function_type_list(void_type_node,
++					  const_char_ptr_type_node,
++					  unsigned_type_node,
++					  const_char_ptr_type_node,
++					  const_char_ptr_type_node,
++					  NULL_TREE);
++	report_size_overflow_decl = build_fn_decl("report_size_overflow", fntype);
++
++	DECL_ASSEMBLER_NAME(report_size_overflow_decl);
++	TREE_PUBLIC(report_size_overflow_decl) = 1;
++	DECL_EXTERNAL(report_size_overflow_decl) = 1;
++	DECL_ARTIFICIAL(report_size_overflow_decl) = 1;
++	TREE_THIS_VOLATILE(report_size_overflow_decl) = 1;
++}
++
++
++extern struct gimple_opt_pass pass_dce;
++
++static struct opt_pass *make_dce_pass(void)
++{
++#if BUILDING_GCC_VERSION >= 4009
++	return make_pass_dce(g);
++#else
++	return &pass_dce.pass;
++#endif
++}
++
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	int i;
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	bool enable = true;
++	struct register_pass_info insert_size_overflow_asm_pass_info;
++	struct register_pass_info __unused dump_before_pass_info;
++	struct register_pass_info __unused dump_after_pass_info;
++	struct register_pass_info insert_size_overflow_check_info;
++	struct register_pass_info dce_pass_info;
++	static const struct ggc_root_tab gt_ggc_r_gt_size_overflow[] = {
++		{
++			.base = &report_size_overflow_decl,
++			.nelt = 1,
++			.stride = sizeof(report_size_overflow_decl),
++			.cb = &gt_ggc_mx_tree_node,
++			.pchw = &gt_pch_nx_tree_node
++		},
++		LAST_GGC_ROOT_TAB
++	};
++
++	insert_size_overflow_asm_pass_info.pass				= make_insert_size_overflow_asm_pass();
++	insert_size_overflow_asm_pass_info.reference_pass_name		= "ssa";
++	insert_size_overflow_asm_pass_info.ref_pass_instance_number	= 1;
++	insert_size_overflow_asm_pass_info.pos_op			= PASS_POS_INSERT_AFTER;
++
++	dump_before_pass_info.pass			= make_dump_pass();
++	dump_before_pass_info.reference_pass_name	= "increase_alignment";
++	dump_before_pass_info.ref_pass_instance_number	= 1;
++	dump_before_pass_info.pos_op			= PASS_POS_INSERT_BEFORE;
++
++	insert_size_overflow_check_info.pass			= make_insert_size_overflow_check();
++	insert_size_overflow_check_info.reference_pass_name	= "increase_alignment";
++	insert_size_overflow_check_info.ref_pass_instance_number	= 1;
++	insert_size_overflow_check_info.pos_op			= PASS_POS_INSERT_BEFORE;
++
++	dump_after_pass_info.pass			= make_dump_pass();
++	dump_after_pass_info.reference_pass_name	= "increase_alignment";
++	dump_after_pass_info.ref_pass_instance_number	= 1;
++	dump_after_pass_info.pos_op			= PASS_POS_INSERT_BEFORE;
++
++	dce_pass_info.pass				= make_dce_pass();
++	dce_pass_info.reference_pass_name		= "vrp";
++	dce_pass_info.ref_pass_instance_number	= 1;
++	dce_pass_info.pos_op			= PASS_POS_INSERT_AFTER;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	for (i = 0; i < argc; ++i) {
++		if (!strcmp(argv[i].key, "no-size-overflow")) {
++			enable = false;
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &size_overflow_plugin_info);
++	if (enable) {
++		register_callback(plugin_name, PLUGIN_START_UNIT, &size_overflow_start_unit, NULL);
++		register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_size_overflow);
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &insert_size_overflow_asm_pass_info);
++//		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &dump_before_pass_info);
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &insert_size_overflow_check_info);
++//		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &dump_after_pass_info);
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &dce_pass_info);
++	}
++	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
++
++	return 0;
++}
+diff --git a/tools/gcc/size_overflow_plugin/size_overflow_plugin_hash.c b/tools/gcc/size_overflow_plugin/size_overflow_plugin_hash.c
+new file mode 100644
+index 0000000..0888f6c
+--- /dev/null
++++ b/tools/gcc/size_overflow_plugin/size_overflow_plugin_hash.c
+@@ -0,0 +1,364 @@
++/*
++ * Copyright 2011-2014 by Emese Revfy <re.emese@gmail.com>
++ * Licensed under the GPL v2, or (at your option) v3
++ *
++ * Homepage:
++ * http://www.grsecurity.net/~ephox/overflow_plugin/
++ *
++ * Documentation:
++ * http://forums.grsecurity.net/viewtopic.php?f=7&t=3043
++ *
++ * This plugin recomputes expressions of function arguments marked by a size_overflow attribute
++ * with double integer precision (DImode/TImode for 32/64 bit integer types).
++ * The recomputed argument is checked against TYPE_MAX and an event is logged on overflow and the triggering process is killed.
++ *
++ * Usage:
++ * $ make
++ * $ make run
++ */
++
++#include "gcc-common.h"
++#include "size_overflow.h"
++
++#include "size_overflow_hash.h"
++#include "size_overflow_hash_aux.h"
++
++#define CODES_LIMIT 32
++
++static unsigned char get_tree_code(const_tree type)
++{
++	switch (TREE_CODE(type)) {
++	case ARRAY_TYPE:
++		return 0;
++	case BOOLEAN_TYPE:
++		return 1;
++	case ENUMERAL_TYPE:
++		return 2;
++	case FUNCTION_TYPE:
++		return 3;
++	case INTEGER_TYPE:
++		return 4;
++	case POINTER_TYPE:
++		return 5;
++	case RECORD_TYPE:
++		return 6;
++	case UNION_TYPE:
++		return 7;
++	case VOID_TYPE:
++		return 8;
++	case REAL_TYPE:
++		return 9;
++	case VECTOR_TYPE:
++		return 10;
++	case REFERENCE_TYPE:
++		return 11;
++	case OFFSET_TYPE:
++		return 12;
++	case COMPLEX_TYPE:
++		return 13;
++	default:
++		debug_tree((tree)type);
++		gcc_unreachable();
++	}
++}
++
++struct function_hash {
++	size_t tree_codes_len;
++	unsigned char tree_codes[CODES_LIMIT];
++	const_tree fndecl;
++	unsigned int hash;
++};
++
++// http://www.team5150.com/~andrew/noncryptohashzoo2~/CrapWow.html
++static unsigned int CrapWow(const char *key, unsigned int len, unsigned int seed)
++{
++#define cwfold( a, b, lo, hi ) { p = (unsigned int)(a) * (unsigned long long)(b); lo ^= (unsigned int)p; hi ^= (unsigned int)(p >> 32); }
++#define cwmixa( in ) { cwfold( in, m, k, h ); }
++#define cwmixb( in ) { cwfold( in, n, h, k ); }
++
++	unsigned int m = 0x57559429;
++	unsigned int n = 0x5052acdb;
++	const unsigned int *key4 = (const unsigned int *)key;
++	unsigned int h = len;
++	unsigned int k = len + seed + n;
++	unsigned long long p;
++
++	while (len >= 8) {
++		cwmixb(key4[0]) cwmixa(key4[1]) key4 += 2;
++		len -= 8;
++	}
++	if (len >= 4) {
++		cwmixb(key4[0]) key4 += 1;
++		len -= 4;
++	}
++	if (len)
++		cwmixa(key4[0] & ((1 << (len * 8)) - 1 ));
++	cwmixb(h ^ (k + n));
++	return k ^ h;
++
++#undef cwfold
++#undef cwmixa
++#undef cwmixb
++}
++
++static void set_hash(const char *fn_name, struct function_hash *fn_hash_data)
++{
++	unsigned int fn, codes, seed = 0;
++
++	fn = CrapWow(fn_name, strlen(fn_name), seed) & 0xffff;
++	codes = CrapWow((const char*)fn_hash_data->tree_codes, fn_hash_data->tree_codes_len, seed) & 0xffff;
++
++	fn_hash_data->hash = fn ^ codes;
++}
++
++static void set_node_codes(const_tree type, struct function_hash *fn_hash_data)
++{
++	gcc_assert(type != NULL_TREE);
++	gcc_assert(TREE_CODE_CLASS(TREE_CODE(type)) == tcc_type);
++
++	while (type && fn_hash_data->tree_codes_len < CODES_LIMIT) {
++		fn_hash_data->tree_codes[fn_hash_data->tree_codes_len] = get_tree_code(type);
++		fn_hash_data->tree_codes_len++;
++		type = TREE_TYPE(type);
++	}
++}
++
++static void set_result_codes(const_tree node, struct function_hash *fn_hash_data)
++{
++	const_tree result;
++
++	gcc_assert(node != NULL_TREE);
++
++	if (DECL_P(node)) {
++		result = DECL_RESULT(node);
++		if (result != NULL_TREE)
++			return set_node_codes(TREE_TYPE(result), fn_hash_data);
++		return set_result_codes(TREE_TYPE(node), fn_hash_data);
++	}
++
++	gcc_assert(TYPE_P(node));
++
++	if (TREE_CODE(node) == FUNCTION_TYPE)
++		return set_result_codes(TREE_TYPE(node), fn_hash_data);
++
++	return set_node_codes(node, fn_hash_data);
++}
++
++static void set_function_codes(struct function_hash *fn_hash_data)
++{
++	const_tree arg, type = TREE_TYPE(fn_hash_data->fndecl);
++	enum tree_code code = TREE_CODE(type);
++
++	gcc_assert(code == FUNCTION_TYPE || code == METHOD_TYPE);
++
++	set_result_codes(fn_hash_data->fndecl, fn_hash_data);
++
++	for (arg = TYPE_ARG_TYPES(type); arg != NULL_TREE && fn_hash_data->tree_codes_len < CODES_LIMIT; arg = TREE_CHAIN(arg))
++		set_node_codes(TREE_VALUE(arg), fn_hash_data);
++}
++
++static const struct size_overflow_hash *get_proper_hash_chain(const struct size_overflow_hash *entry, const char *func_name)
++{
++	while (entry) {
++		if (!strcmp(entry->name, func_name))
++			return entry;
++		entry = entry->next;
++	}
++	return NULL;
++}
++
++const struct size_overflow_hash *get_function_hash(const_tree fndecl)
++{
++	const struct size_overflow_hash *entry;
++	struct function_hash fn_hash_data;
++	const char *func_name;
++
++	// skip builtins __builtin_constant_p
++	if (DECL_BUILT_IN(fndecl))
++		return NULL;
++
++	fn_hash_data.fndecl = fndecl;
++	fn_hash_data.tree_codes_len = 0;
++
++	set_function_codes(&fn_hash_data);
++	gcc_assert(fn_hash_data.tree_codes_len != 0);
++
++	func_name = DECL_NAME_POINTER(fn_hash_data.fndecl);
++	set_hash(func_name, &fn_hash_data);
++
++	entry = size_overflow_hash[fn_hash_data.hash];
++	entry = get_proper_hash_chain(entry, func_name);
++	if (entry)
++		return entry;
++	entry = size_overflow_hash_aux[fn_hash_data.hash];
++	return get_proper_hash_chain(entry, func_name);
++}
++
++static void print_missing_msg(const_tree func, unsigned int argnum)
++{
++	location_t loc;
++	const char *curfunc;
++	struct function_hash fn_hash_data;
++
++	fn_hash_data.fndecl = DECL_ORIGIN(func);
++	fn_hash_data.tree_codes_len = 0;
++
++	loc = DECL_SOURCE_LOCATION(fn_hash_data.fndecl);
++	curfunc = DECL_NAME_POINTER(fn_hash_data.fndecl);
++
++	set_function_codes(&fn_hash_data);
++	set_hash(curfunc, &fn_hash_data);
++
++	inform(loc, "Function %s is missing from the size_overflow hash table +%s+%u+%u+", curfunc, curfunc, argnum, fn_hash_data.hash);
++}
++
++unsigned int find_arg_number_tree(const_tree arg, const_tree func)
++{
++	tree var;
++	unsigned int argnum = 1;
++
++	if (TREE_CODE(arg) == SSA_NAME)
++		arg = SSA_NAME_VAR(arg);
++
++	for (var = DECL_ARGUMENTS(func); var; var = TREE_CHAIN(var), argnum++) {
++		if (!operand_equal_p(arg, var, 0) && strcmp(DECL_NAME_POINTER(var), DECL_NAME_POINTER(arg)))
++			continue;
++		if (!skip_types(var))
++			return argnum;
++	}
++
++	return CANNOT_FIND_ARG;
++}
++
++static const char *get_asm_string(const_gimple stmt)
++{
++	if (!stmt)
++		return NULL;
++	if (gimple_code(stmt) != GIMPLE_ASM)
++		return NULL;
++
++	return gimple_asm_string(stmt);
++}
++
++bool is_size_overflow_intentional_asm_turn_off(const_gimple stmt)
++{
++	const char *str;
++
++	str = get_asm_string(stmt);
++	if (!str)
++		return false;
++	return !strncmp(str, TURN_OFF_ASM_STR, sizeof(TURN_OFF_ASM_STR) - 1);
++}
++
++bool is_size_overflow_intentional_asm_yes(const_gimple stmt)
++{
++	const char *str;
++
++	str = get_asm_string(stmt);
++	if (!str)
++		return false;
++	return !strncmp(str, YES_ASM_STR, sizeof(YES_ASM_STR) - 1);
++}
++
++bool is_size_overflow_asm(const_gimple stmt)
++{
++	const char *str;
++
++	str = get_asm_string(stmt);
++	if (!str)
++		return false;
++	return !strncmp(str, OK_ASM_STR, sizeof(OK_ASM_STR) - 1);
++}
++
++bool is_a_return_check(const_tree node)
++{
++	if (TREE_CODE(node) == FUNCTION_DECL)
++		return true;
++
++	gcc_assert(TREE_CODE(node) == PARM_DECL);
++	return false;
++}
++
++// Get the argnum of a function decl, if node is a return then the argnum is 0
++unsigned int get_function_num(const_tree node, const_tree orig_fndecl)
++{
++	if (is_a_return_check(node))
++		return 0;
++	else
++		return find_arg_number_tree(node, orig_fndecl);
++}
++
++unsigned int get_correct_arg_count(unsigned int argnum, const_tree fndecl)
++{
++	const struct size_overflow_hash *hash;
++	unsigned int new_argnum;
++	tree arg;
++	const_tree origarg;
++
++	if (argnum == 0)
++		return argnum;
++
++	hash = get_function_hash(fndecl);
++	if (hash && hash->param & (1U << argnum))
++		return argnum;
++
++	if (DECL_EXTERNAL(fndecl))
++		return argnum;
++
++	origarg = DECL_ARGUMENTS(DECL_ORIGIN(fndecl));
++	argnum--;
++	while (origarg && argnum) {
++		origarg = TREE_CHAIN(origarg);
++		argnum--;
++	}
++	gcc_assert(argnum == 0);
++	gcc_assert(origarg != NULL_TREE);
++
++	for (arg = DECL_ARGUMENTS(fndecl), new_argnum = 1; arg; arg = TREE_CHAIN(arg), new_argnum++)
++		if (operand_equal_p(origarg, arg, 0) || !strcmp(DECL_NAME_POINTER(origarg), DECL_NAME_POINTER(arg)))
++			return new_argnum;
++
++	return CANNOT_FIND_ARG;
++}
++
++static bool is_in_hash_table(const_tree fndecl, unsigned int num)
++{
++	const struct size_overflow_hash *hash;
++
++	hash = get_function_hash(fndecl);
++	if (hash && (hash->param & (1U << num)))
++		return true;
++	return false;
++}
++
++/* Check if the function has a size_overflow attribute or it is in the size_overflow hash table.
++ * If the function is missing everywhere then print the missing message into stderr.
++ */
++bool is_missing_function(const_tree orig_fndecl, unsigned int num)
++{
++	switch (DECL_FUNCTION_CODE(orig_fndecl)) {
++#if BUILDING_GCC_VERSION >= 4008
++	case BUILT_IN_BSWAP16:
++#endif
++	case BUILT_IN_BSWAP32:
++	case BUILT_IN_BSWAP64:
++	case BUILT_IN_EXPECT:
++	case BUILT_IN_MEMCMP:
++		return false;
++	default:
++		break;
++	}
++
++	// skip test.c
++	if (strcmp(DECL_NAME_POINTER(current_function_decl), "coolmalloc")) {
++		if (lookup_attribute("size_overflow", DECL_ATTRIBUTES(orig_fndecl)))
++			warning(0, "unnecessary size_overflow attribute on: %s\n", DECL_NAME_POINTER(orig_fndecl));
++	}
++
++	if (is_in_hash_table(orig_fndecl, num))
++		return false;
++
++	print_missing_msg(orig_fndecl, num);
++	return true;
++}
++
+diff --git a/tools/gcc/stackleak_plugin.c b/tools/gcc/stackleak_plugin.c
+new file mode 100644
+index 0000000..1d296ce
+--- /dev/null
++++ b/tools/gcc/stackleak_plugin.c
+@@ -0,0 +1,432 @@
++/*
++ * Copyright 2011-2015 by the PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to help implement various PaX features
++ *
++ * - track lowest stack pointer
++ *
++ * TODO:
++ * - initialize all local variables
++ *
++ * BUGS:
++ * - none known
++ */
++
++#include "gcc-common.h"
++
++int plugin_is_GPL_compatible;
++
++static int track_frame_size = -1;
++static const char track_function[] = "pax_track_stack";
++static const char check_function[] = "pax_check_alloca";
++static GTY(()) tree track_function_decl;
++static GTY(()) tree check_function_decl;
++static bool init_locals;
++
++static struct plugin_info stackleak_plugin_info = {
++	.version	= "201504282245",
++	.help		= "track-lowest-sp=nn\ttrack sp in functions whose frame size is at least nn bytes\n"
++//			  "initialize-locals\t\tforcibly initialize all stack frames\n"
++};
++
++static void stackleak_check_alloca(gimple_stmt_iterator *gsi)
++{
++	gcall *check_alloca;
++	tree alloca_size;
++	cgraph_node_ptr node;
++	int frequency;
++	basic_block bb;
++
++	// insert call to void pax_check_alloca(unsigned long size)
++	alloca_size = gimple_call_arg(gsi_stmt(*gsi), 0);
++	check_alloca = gimple_build_call(check_function_decl, 1, alloca_size);
++	gsi_insert_before(gsi, check_alloca, GSI_SAME_STMT);
++
++	// update the cgraph
++	bb = gimple_bb(check_alloca);
++	node = cgraph_get_create_node(check_function_decl);
++	gcc_assert(node);
++	frequency = compute_call_stmt_bb_frequency(current_function_decl, bb);
++	cgraph_create_edge(cgraph_get_node(current_function_decl), node, check_alloca, bb->count, frequency, bb->loop_depth);
++}
++
++static void stackleak_add_instrumentation(gimple_stmt_iterator *gsi)
++{
++	gcall *track_stack;
++	cgraph_node_ptr node;
++	int frequency;
++	basic_block bb;
++
++	// insert call to void pax_track_stack(void)
++	track_stack = gimple_build_call(track_function_decl, 0);
++	gsi_insert_after(gsi, track_stack, GSI_CONTINUE_LINKING);
++
++	// update the cgraph
++	bb = gimple_bb(track_stack);
++	node = cgraph_get_create_node(track_function_decl);
++	gcc_assert(node);
++	frequency = compute_call_stmt_bb_frequency(current_function_decl, bb);
++	cgraph_create_edge(cgraph_get_node(current_function_decl), node, track_stack, bb->count, frequency, bb->loop_depth);
++}
++
++static bool is_alloca(gimple stmt)
++{
++	if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA))
++		return true;
++
++#if BUILDING_GCC_VERSION >= 4007
++	if (gimple_call_builtin_p(stmt, BUILT_IN_ALLOCA_WITH_ALIGN))
++		return true;
++#endif
++
++	return false;
++}
++
++static unsigned int execute_stackleak_tree_instrument(void)
++{
++	basic_block bb, entry_bb;
++	bool prologue_instrumented = false, is_leaf = true;
++
++	entry_bb = ENTRY_BLOCK_PTR_FOR_FN(cfun)->next_bb;
++
++	// 1. loop through BBs and GIMPLE statements
++	FOR_EACH_BB_FN(bb, cfun) {
++		gimple_stmt_iterator gsi;
++
++		for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++			gimple stmt;
++
++			stmt = gsi_stmt(gsi);
++
++			if (is_gimple_call(stmt))
++				is_leaf = false;
++
++			// gimple match: align 8 built-in BUILT_IN_NORMAL:BUILT_IN_ALLOCA attributes <tree_list 0xb7576450>
++			if (!is_alloca(stmt))
++				continue;
++
++			// 2. insert stack overflow check before each __builtin_alloca call
++			stackleak_check_alloca(&gsi);
++
++			// 3. insert track call after each __builtin_alloca call
++			stackleak_add_instrumentation(&gsi);
++			if (bb == entry_bb)
++				prologue_instrumented = true;
++		}
++	}
++
++	// special cases for some bad linux code: taking the address of static inline functions will materialize them
++	// but we mustn't instrument some of them as the resulting stack alignment required by the function call ABI
++	// will break other assumptions regarding the expected (but not otherwise enforced) register clobbering  ABI.
++	// case in point: native_save_fl on amd64 when optimized for size clobbers rdx if it were instrumented here.
++	if (is_leaf && !TREE_PUBLIC(current_function_decl) && DECL_DECLARED_INLINE_P(current_function_decl))
++		return 0;
++	if (is_leaf && !strncmp(IDENTIFIER_POINTER(DECL_NAME(current_function_decl)), "_paravirt_", 10))
++		return 0;
++
++	// 4. insert track call at the beginning
++	if (!prologue_instrumented) {
++		gimple_stmt_iterator gsi;
++
++		bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
++		if (dom_info_available_p(CDI_DOMINATORS))
++			set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
++		gsi = gsi_start_bb(bb);
++		stackleak_add_instrumentation(&gsi);
++	}
++
++	return 0;
++}
++
++static unsigned int execute_stackleak_final(void)
++{
++	rtx_insn *insn, *next;
++
++	if (cfun->calls_alloca)
++		return 0;
++
++	// keep calls only if function frame is big enough
++	if (get_frame_size() >= track_frame_size)
++		return 0;
++
++	// 1. find pax_track_stack calls
++	for (insn = get_insns(); insn; insn = next) {
++		// rtl match: (call_insn 8 7 9 3 (call (mem (symbol_ref ("pax_track_stack") [flags 0x41] <function_decl 0xb7470e80 pax_track_stack>) [0 S1 A8]) (4)) -1 (nil) (nil))
++		rtx body;
++
++		next = NEXT_INSN(insn);
++		if (!CALL_P(insn))
++			continue;
++		body = PATTERN(insn);
++		if (GET_CODE(body) != CALL)
++			continue;
++		body = XEXP(body, 0);
++		if (GET_CODE(body) != MEM)
++			continue;
++		body = XEXP(body, 0);
++		if (GET_CODE(body) != SYMBOL_REF)
++			continue;
++//		if (strcmp(XSTR(body, 0), track_function))
++		if (SYMBOL_REF_DECL(body) != track_function_decl)
++			continue;
++//		warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
++		// 2. delete call
++		delete_insn_and_edges(insn);
++#if BUILDING_GCC_VERSION >= 4007
++		if (GET_CODE(next) == NOTE && NOTE_KIND(next) == NOTE_INSN_CALL_ARG_LOCATION) {
++			insn = next;
++			next = NEXT_INSN(insn);
++			delete_insn_and_edges(insn);
++		}
++#endif
++	}
++
++//	print_simple_rtl(stderr, get_insns());
++//	print_rtl(stderr, get_insns());
++//	warning(0, "track_frame_size: %d %ld %d", cfun->calls_alloca, get_frame_size(), track_frame_size);
++
++	return 0;
++}
++
++static bool gate_stackleak_track_stack(void)
++{
++	tree section;
++
++	if (ix86_cmodel != CM_KERNEL)
++		return false;
++
++	section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl));
++	if (section && TREE_VALUE(section)) {
++		section = TREE_VALUE(TREE_VALUE(section));
++
++		if (!strncmp(TREE_STRING_POINTER(section), ".init.text", 10))
++			return false;
++		if (!strncmp(TREE_STRING_POINTER(section), ".devinit.text", 13))
++			return false;
++		if (!strncmp(TREE_STRING_POINTER(section), ".cpuinit.text", 13))
++			return false;
++		if (!strncmp(TREE_STRING_POINTER(section), ".meminit.text", 13))
++			return false;
++	}
++
++	return track_frame_size >= 0;
++}
++
++static void stackleak_start_unit(void *gcc_data, void *user_data)
++{
++	tree fntype;
++
++	// void pax_track_stack(void)
++	fntype = build_function_type_list(void_type_node, NULL_TREE);
++	track_function_decl = build_fn_decl(track_function, fntype);
++	DECL_ASSEMBLER_NAME(track_function_decl); // for LTO
++	TREE_PUBLIC(track_function_decl) = 1;
++	TREE_USED(track_function_decl) = 1;
++	DECL_EXTERNAL(track_function_decl) = 1;
++	DECL_ARTIFICIAL(track_function_decl) = 1;
++	DECL_PRESERVE_P(track_function_decl) = 1;
++
++	// void pax_check_alloca(unsigned long)
++	fntype = build_function_type_list(void_type_node, long_unsigned_type_node, NULL_TREE);
++	check_function_decl = build_fn_decl(check_function, fntype);
++	DECL_ASSEMBLER_NAME(check_function_decl); // for LTO
++	TREE_PUBLIC(check_function_decl) = 1;
++	TREE_USED(check_function_decl) = 1;
++	DECL_EXTERNAL(check_function_decl) = 1;
++	DECL_ARTIFICIAL(check_function_decl) = 1;
++	DECL_PRESERVE_P(check_function_decl) = 1;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data stackleak_tree_instrument_pass_data = {
++#else
++static struct gimple_opt_pass stackleak_tree_instrument_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "stackleak_tree_instrument",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= true,
++		.has_execute		= true,
++#else
++		.gate			= gate_stackleak_track_stack,
++		.execute		= execute_stackleak_tree_instrument,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= PROP_gimple_leh | PROP_cfg,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0, //TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts,
++		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_update_ssa | TODO_rebuild_cgraph_edges
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++static const struct pass_data stackleak_final_rtl_opt_pass_data = {
++#else
++static struct rtl_opt_pass stackleak_final_rtl_opt_pass = {
++	.pass = {
++#endif
++		.type			= RTL_PASS,
++		.name			= "stackleak_final",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= true,
++		.has_execute		= true,
++#else
++		.gate			= gate_stackleak_track_stack,
++		.execute		= execute_stackleak_final,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= 0,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_dump_func
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class stackleak_tree_instrument_pass : public gimple_opt_pass {
++public:
++	stackleak_tree_instrument_pass() : gimple_opt_pass(stackleak_tree_instrument_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual bool gate(function *) { return gate_stackleak_track_stack(); }
++	virtual unsigned int execute(function *) { return execute_stackleak_tree_instrument(); }
++#else
++	bool gate() { return gate_stackleak_track_stack(); }
++	unsigned int execute() { return execute_stackleak_tree_instrument(); }
++#endif
++};
++
++class stackleak_final_rtl_opt_pass : public rtl_opt_pass {
++public:
++	stackleak_final_rtl_opt_pass() : rtl_opt_pass(stackleak_final_rtl_opt_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual bool gate(function *) { return gate_stackleak_track_stack(); }
++	virtual unsigned int execute(function *) { return execute_stackleak_final(); }
++#else
++	bool gate() { return gate_stackleak_track_stack(); }
++	unsigned int execute() { return execute_stackleak_final(); }
++#endif
++};
++}
++
++static opt_pass *make_stackleak_tree_instrument_pass(void)
++{
++	return new stackleak_tree_instrument_pass();
++}
++
++static opt_pass *make_stackleak_final_rtl_opt_pass(void)
++{
++	return new stackleak_final_rtl_opt_pass();
++}
++#else
++static struct opt_pass *make_stackleak_tree_instrument_pass(void)
++{
++	return &stackleak_tree_instrument_pass.pass;
++}
++
++static struct opt_pass *make_stackleak_final_rtl_opt_pass(void)
++{
++	return &stackleak_final_rtl_opt_pass.pass;
++}
++#endif
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	int i;
++	struct register_pass_info stackleak_tree_instrument_pass_info;
++	struct register_pass_info stackleak_final_pass_info;
++	static const struct ggc_root_tab gt_ggc_r_gt_stackleak[] = {
++		{
++			.base = &track_function_decl,
++			.nelt = 1,
++			.stride = sizeof(track_function_decl),
++			.cb = &gt_ggc_mx_tree_node,
++			.pchw = &gt_pch_nx_tree_node
++		},
++		{
++			.base = &check_function_decl,
++			.nelt = 1,
++			.stride = sizeof(check_function_decl),
++			.cb = &gt_ggc_mx_tree_node,
++			.pchw = &gt_pch_nx_tree_node
++		},
++		LAST_GGC_ROOT_TAB
++	};
++
++	stackleak_tree_instrument_pass_info.pass			= make_stackleak_tree_instrument_pass();
++//	stackleak_tree_instrument_pass_info.reference_pass_name		= "tree_profile";
++	stackleak_tree_instrument_pass_info.reference_pass_name		= "optimized";
++	stackleak_tree_instrument_pass_info.ref_pass_instance_number	= 1;
++	stackleak_tree_instrument_pass_info.pos_op 			= PASS_POS_INSERT_BEFORE;
++
++	stackleak_final_pass_info.pass				= make_stackleak_final_rtl_opt_pass();
++	stackleak_final_pass_info.reference_pass_name		= "final";
++	stackleak_final_pass_info.ref_pass_instance_number	= 1;
++	stackleak_final_pass_info.pos_op 			= PASS_POS_INSERT_BEFORE;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &stackleak_plugin_info);
++
++	for (i = 0; i < argc; ++i) {
++		if (!strcmp(argv[i].key, "track-lowest-sp")) {
++			if (!argv[i].value) {
++				error(G_("no value supplied for option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++				continue;
++			}
++			track_frame_size = atoi(argv[i].value);
++			if (argv[i].value[0] < '0' || argv[i].value[0] > '9' || track_frame_size < 0)
++				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
++			continue;
++		}
++		if (!strcmp(argv[i].key, "initialize-locals")) {
++			if (argv[i].value) {
++				error(G_("invalid option argument '-fplugin-arg-%s-%s=%s'"), plugin_name, argv[i].key, argv[i].value);
++				continue;
++			}
++			init_locals = true;
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++
++	register_callback(plugin_name, PLUGIN_START_UNIT, &stackleak_start_unit, NULL);
++	register_callback(plugin_name, PLUGIN_REGISTER_GGC_ROOTS, NULL, (void *)&gt_ggc_r_gt_stackleak);
++	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_tree_instrument_pass_info);
++	register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &stackleak_final_pass_info);
++
++	return 0;
++}
+diff --git a/tools/gcc/structleak_plugin.c b/tools/gcc/structleak_plugin.c
+new file mode 100644
+index 0000000..e9dbd4b
+--- /dev/null
++++ b/tools/gcc/structleak_plugin.c
+@@ -0,0 +1,287 @@
++/*
++ * Copyright 2013-2015 by PaX Team <pageexec@freemail.hu>
++ * Licensed under the GPL v2
++ *
++ * Note: the choice of the license means that the compilation process is
++ *       NOT 'eligible' as defined by gcc's library exception to the GPL v3,
++ *       but for the kernel it doesn't matter since it doesn't link against
++ *       any of the gcc libraries
++ *
++ * gcc plugin to forcibly initialize certain local variables that could
++ * otherwise leak kernel stack to userland if they aren't properly initialized
++ * by later code
++ *
++ * Homepage: http://pax.grsecurity.net/
++ *
++ * Usage:
++ * $ # for 4.5/4.6/C based 4.7
++ * $ gcc -I`gcc -print-file-name=plugin`/include -I`gcc -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o structleak_plugin.so structleak_plugin.c
++ * $ # for C++ based 4.7/4.8+
++ * $ g++ -I`g++ -print-file-name=plugin`/include -I`g++ -print-file-name=plugin`/include/c-family -fPIC -shared -O2 -o structleak_plugin.so structleak_plugin.c
++ * $ gcc -fplugin=./structleak_plugin.so test.c -O2
++ *
++ * TODO: eliminate redundant initializers
++ *       increase type coverage
++ */
++
++#include "gcc-common.h"
++
++// unused C type flag in all versions 4.5-5.0
++#define TYPE_USERSPACE(TYPE) TYPE_LANG_FLAG_5(TYPE)
++
++int plugin_is_GPL_compatible;
++
++static struct plugin_info structleak_plugin_info = {
++	.version	= "201401260140",
++	.help		= "disable\tdo not activate plugin\n",
++};
++
++static tree handle_user_attribute(tree *node, tree name, tree args, int flags, bool *no_add_attrs)
++{
++	*no_add_attrs = true;
++
++	// check for types? for now accept everything linux has to offer
++	if (TREE_CODE(*node) != FIELD_DECL)
++		return NULL_TREE;
++
++	*no_add_attrs = false;
++	return NULL_TREE;
++}
++
++static struct attribute_spec user_attr = {
++	.name			= "user",
++	.min_length		= 0,
++	.max_length		= 0,
++	.decl_required		= false,
++	.type_required		= false,
++	.function_type_required	= false,
++	.handler		= handle_user_attribute,
++#if BUILDING_GCC_VERSION >= 4007
++	.affects_type_identity	= true
++#endif
++};
++
++static void register_attributes(void *event_data, void *data)
++{
++	register_attribute(&user_attr);
++//	register_attribute(&force_attr);
++}
++
++static tree get_field_type(tree field)
++{
++	return strip_array_types(TREE_TYPE(field));
++}
++
++static bool is_userspace_type(tree type)
++{
++	tree field;
++
++	for (field = TYPE_FIELDS(type); field; field = TREE_CHAIN(field)) {
++		tree fieldtype = get_field_type(field);
++		enum tree_code code = TREE_CODE(fieldtype);
++
++		if (code == RECORD_TYPE || code == UNION_TYPE)
++			if (is_userspace_type(fieldtype))
++				return true;
++
++		if (lookup_attribute("user", DECL_ATTRIBUTES(field)))
++			return true;
++	}
++	return false;
++}
++
++static void finish_type(void *event_data, void *data)
++{
++	tree type = (tree)event_data;
++
++	if (type == NULL_TREE || type == error_mark_node)
++		return;
++
++#if BUILDING_GCC_VERSION >= 5000
++	if (TREE_CODE(type) == ENUMERAL_TYPE)
++		return;
++#endif
++
++	if (TYPE_USERSPACE(type))
++		return;
++
++	if (is_userspace_type(type))
++		TYPE_USERSPACE(type) = 1;
++}
++
++static void initialize(tree var)
++{
++	basic_block bb;
++	gimple_stmt_iterator gsi;
++	tree initializer;
++	gimple init_stmt;
++
++	// this is the original entry bb before the forced split
++	// TODO: check further BBs in case more splits occured before us
++	bb = ENTRY_BLOCK_PTR_FOR_FN(cfun)->next_bb->next_bb;
++
++	// first check if the variable is already initialized, warn otherwise
++	for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
++		gimple stmt = gsi_stmt(gsi);
++		tree rhs1;
++
++		// we're looking for an assignment of a single rhs...
++		if (!gimple_assign_single_p(stmt))
++			continue;
++		rhs1 = gimple_assign_rhs1(stmt);
++#if BUILDING_GCC_VERSION >= 4007
++		// ... of a non-clobbering expression...
++		if (TREE_CLOBBER_P(rhs1))
++			continue;
++#endif
++		// ... to our variable...
++		if (gimple_get_lhs(stmt) != var)
++			continue;
++		// if it's an initializer then we're good
++		if (TREE_CODE(rhs1) == CONSTRUCTOR)
++			return;
++	}
++
++	// these aren't the 0days you're looking for
++//	inform(DECL_SOURCE_LOCATION(var), "userspace variable will be forcibly initialized");
++
++	// build the initializer expression
++	initializer = build_constructor(TREE_TYPE(var), NULL);
++
++	// build the initializer stmt
++	init_stmt = gimple_build_assign(var, initializer);
++	gsi = gsi_start_bb(ENTRY_BLOCK_PTR_FOR_FN(cfun)->next_bb);
++	gsi_insert_before(&gsi, init_stmt, GSI_NEW_STMT);
++	update_stmt(init_stmt);
++}
++
++static unsigned int handle_function(void)
++{
++	basic_block bb;
++	unsigned int ret = 0;
++	tree var;
++	unsigned int i;
++
++	// split the first bb where we can put the forced initializers
++	bb = split_block_after_labels(ENTRY_BLOCK_PTR_FOR_FN(cfun))->dest;
++	if (dom_info_available_p(CDI_DOMINATORS))
++		set_immediate_dominator(CDI_DOMINATORS, bb, ENTRY_BLOCK_PTR_FOR_FN(cfun));
++
++	// enumarate all local variables and forcibly initialize our targets
++	FOR_EACH_LOCAL_DECL(cfun, i, var) {
++		tree type = TREE_TYPE(var);
++
++		gcc_assert(DECL_P(var));
++		if (!auto_var_in_fn_p(var, current_function_decl))
++			continue;
++
++		// only care about structure types
++		if (TREE_CODE(type) != RECORD_TYPE && TREE_CODE(type) != UNION_TYPE)
++			continue;
++
++		// if the type is of interest, examine the variable
++		if (TYPE_USERSPACE(type))
++			initialize(var);
++	}
++
++	return ret;
++}
++
++#if BUILDING_GCC_VERSION >= 4009
++namespace {
++static const struct pass_data structleak_pass_data = {
++#else
++static struct gimple_opt_pass structleak_pass = {
++	.pass = {
++#endif
++		.type			= GIMPLE_PASS,
++		.name			= "structleak",
++#if BUILDING_GCC_VERSION >= 4008
++		.optinfo_flags		= OPTGROUP_NONE,
++#endif
++#if BUILDING_GCC_VERSION >= 5000
++#elif BUILDING_GCC_VERSION == 4009
++		.has_gate		= false,
++		.has_execute		= true,
++#else
++		.gate			= NULL,
++		.execute		= handle_function,
++		.sub			= NULL,
++		.next			= NULL,
++		.static_pass_number	= 0,
++#endif
++		.tv_id			= TV_NONE,
++		.properties_required	= PROP_cfg,
++		.properties_provided	= 0,
++		.properties_destroyed	= 0,
++		.todo_flags_start	= 0,
++		.todo_flags_finish	= TODO_verify_ssa | TODO_verify_stmts | TODO_dump_func | TODO_remove_unused_locals | TODO_update_ssa | TODO_ggc_collect | TODO_verify_flow
++#if BUILDING_GCC_VERSION < 4009
++	}
++#endif
++};
++
++#if BUILDING_GCC_VERSION >= 4009
++class structleak_pass : public gimple_opt_pass {
++public:
++	structleak_pass() : gimple_opt_pass(structleak_pass_data, g) {}
++#if BUILDING_GCC_VERSION >= 5000
++	virtual unsigned int execute(function *) { return handle_function(); }
++#else
++	unsigned int execute() { return handle_function(); }
++#endif
++};
++}
++
++static opt_pass *make_structleak_pass(void)
++{
++	return new structleak_pass();
++}
++#else
++static struct opt_pass *make_structleak_pass(void)
++{
++	return &structleak_pass.pass;
++}
++#endif
++
++int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
++{
++	int i;
++	const char * const plugin_name = plugin_info->base_name;
++	const int argc = plugin_info->argc;
++	const struct plugin_argument * const argv = plugin_info->argv;
++	bool enable = true;
++	struct register_pass_info structleak_pass_info;
++
++	structleak_pass_info.pass			= make_structleak_pass();
++	structleak_pass_info.reference_pass_name	= "ssa";
++	structleak_pass_info.ref_pass_instance_number	= 1;
++	structleak_pass_info.pos_op			= PASS_POS_INSERT_AFTER;
++
++	if (!plugin_default_version_check(version, &gcc_version)) {
++		error(G_("incompatible gcc/plugin versions"));
++		return 1;
++	}
++
++	if (strncmp(lang_hooks.name, "GNU C", 5) && !strncmp(lang_hooks.name, "GNU C+", 6)) {
++		inform(UNKNOWN_LOCATION, G_("%s supports C only"), plugin_name);
++		enable = false;
++	}
++
++	for (i = 0; i < argc; ++i) {
++		if (!strcmp(argv[i].key, "disable")) {
++			enable = false;
++			continue;
++		}
++		error(G_("unkown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
++	}
++
++	register_callback(plugin_name, PLUGIN_INFO, NULL, &structleak_plugin_info);
++	if (enable) {
++		register_callback(plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &structleak_pass_info);
++		register_callback(plugin_name, PLUGIN_FINISH_TYPE, finish_type, NULL);
++	}
++	register_callback(plugin_name, PLUGIN_ATTRIBUTES, register_attributes, NULL);
++
++	return 0;
++}
+diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
+index fbc6665..5e9ce79 100644
+--- a/tools/include/linux/compiler.h
++++ b/tools/include/linux/compiler.h
+@@ -35,4 +35,12 @@
+ # define unlikely(x)		__builtin_expect(!!(x), 0)
+ #endif
+ 
++#ifndef __size_overflow
++# define __size_overflow(...)
++#endif
++
++#ifndef __intentional_overflow
++# define __intentional_overflow(...)
++#endif
++
+ #endif /* _TOOLS_LINUX_COMPILER_H */
+diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
+index ed2f51e..cc2d8f6 100644
+--- a/tools/lib/api/Makefile
++++ b/tools/lib/api/Makefile
+@@ -14,7 +14,7 @@ LIB_OBJS += $(OUTPUT)fs/debugfs.o
+ 
+ LIBFILE = libapikfs.a
+ 
+-CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
++CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
+ EXTLIBS = -lelf -lpthread -lrt -lm
+ ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
+ ALL_LDFLAGS = $(LDFLAGS)
+diff --git a/tools/perf/util/include/asm/alternative-asm.h b/tools/perf/util/include/asm/alternative-asm.h
+index 6789d788..4afd019e 100644
+--- a/tools/perf/util/include/asm/alternative-asm.h
++++ b/tools/perf/util/include/asm/alternative-asm.h
+@@ -5,4 +5,7 @@
+ 
+ #define altinstruction_entry #
+ 
++	.macro pax_force_retaddr rip=0, reload=0
++	.endm
++
+ #endif
+diff --git a/tools/virtio/linux/uaccess.h b/tools/virtio/linux/uaccess.h
+index 0a578fe..b81f62d 100644
+--- a/tools/virtio/linux/uaccess.h
++++ b/tools/virtio/linux/uaccess.h
+@@ -13,7 +13,7 @@ static inline void __chk_user_ptr(const volatile void *p, size_t size)
+ ({								\
+ 	typeof(ptr) __pu_ptr = (ptr);				\
+ 	__chk_user_ptr(__pu_ptr, sizeof(*__pu_ptr));		\
+-	ACCESS_ONCE(*(__pu_ptr)) = x;				\
++	ACCESS_ONCE_RW(*(__pu_ptr)) = x;			\
+ 	0;							\
+ })
+ 
+diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
+index eed250e..df7bf8c 100644
+--- a/virt/kvm/kvm_main.c
++++ b/virt/kvm/kvm_main.c
+@@ -77,12 +77,17 @@ LIST_HEAD(vm_list);
+ 
+ static cpumask_var_t cpus_hardware_enabled;
+ static int kvm_usage_count = 0;
+-static atomic_t hardware_enable_failed;
++static atomic_unchecked_t hardware_enable_failed;
+ 
+ struct kmem_cache *kvm_vcpu_cache;
+ EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
+ 
+-static __read_mostly struct preempt_ops kvm_preempt_ops;
++static void kvm_sched_in(struct preempt_notifier *pn, int cpu);
++static void kvm_sched_out(struct preempt_notifier *pn, struct task_struct *next);
++static struct preempt_ops kvm_preempt_ops = {
++	.sched_in = kvm_sched_in,
++	.sched_out = kvm_sched_out,
++};
+ 
+ struct dentry *kvm_debugfs_dir;
+ 
+@@ -768,7 +773,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
+ 	/* We can read the guest memory with __xxx_user() later on. */
+ 	if ((mem->slot < KVM_USER_MEM_SLOTS) &&
+ 	    ((mem->userspace_addr & (PAGE_SIZE - 1)) ||
+-	     !access_ok(VERIFY_WRITE,
++	     !access_ok_noprefault(VERIFY_WRITE,
+ 			(void __user *)(unsigned long)mem->userspace_addr,
+ 			mem->memory_size)))
+ 		goto out;
+@@ -1625,9 +1630,17 @@ EXPORT_SYMBOL_GPL(kvm_read_guest_cached);
+ 
+ int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len)
+ {
+-	const void *zero_page = (const void *) __va(page_to_phys(ZERO_PAGE(0)));
++	int r;
++	unsigned long addr;
+ 
+-	return kvm_write_guest_page(kvm, gfn, zero_page, offset, len);
++	addr = gfn_to_hva(kvm, gfn);
++	if (kvm_is_error_hva(addr))
++		return -EFAULT;
++	r = __clear_user((void __user *)addr + offset, len);
++	if (r)
++		return -EFAULT;
++	mark_page_dirty(kvm, gfn);
++	return 0;
+ }
+ EXPORT_SYMBOL_GPL(kvm_clear_guest_page);
+ 
+@@ -1877,7 +1890,7 @@ static int kvm_vcpu_release(struct inode *inode, struct file *filp)
+ 	return 0;
+ }
+ 
+-static struct file_operations kvm_vcpu_fops = {
++static file_operations_no_const kvm_vcpu_fops __read_only = {
+ 	.release        = kvm_vcpu_release,
+ 	.unlocked_ioctl = kvm_vcpu_ioctl,
+ #ifdef CONFIG_COMPAT
+@@ -2545,7 +2558,7 @@ out:
+ }
+ #endif
+ 
+-static struct file_operations kvm_vm_fops = {
++static file_operations_no_const kvm_vm_fops __read_only = {
+ 	.release        = kvm_vm_release,
+ 	.unlocked_ioctl = kvm_vm_ioctl,
+ #ifdef CONFIG_COMPAT
+@@ -2645,7 +2658,7 @@ out:
+ 	return r;
+ }
+ 
+-static struct file_operations kvm_chardev_ops = {
++static file_operations_no_const kvm_chardev_ops __read_only = {
+ 	.unlocked_ioctl = kvm_dev_ioctl,
+ 	.compat_ioctl   = kvm_dev_ioctl,
+ 	.llseek		= noop_llseek,
+@@ -2671,7 +2684,7 @@ static void hardware_enable_nolock(void *junk)
+ 
+ 	if (r) {
+ 		cpumask_clear_cpu(cpu, cpus_hardware_enabled);
+-		atomic_inc(&hardware_enable_failed);
++		atomic_inc_unchecked(&hardware_enable_failed);
+ 		printk(KERN_INFO "kvm: enabling virtualization on "
+ 				 "CPU%d failed\n", cpu);
+ 	}
+@@ -2727,10 +2740,10 @@ static int hardware_enable_all(void)
+ 
+ 	kvm_usage_count++;
+ 	if (kvm_usage_count == 1) {
+-		atomic_set(&hardware_enable_failed, 0);
++		atomic_set_unchecked(&hardware_enable_failed, 0);
+ 		on_each_cpu(hardware_enable_nolock, NULL, 1);
+ 
+-		if (atomic_read(&hardware_enable_failed)) {
++		if (atomic_read_unchecked(&hardware_enable_failed)) {
+ 			hardware_disable_all_nolock();
+ 			r = -EBUSY;
+ 		}
+@@ -3134,7 +3147,7 @@ static void kvm_sched_out(struct preempt_notifier *pn,
+ 	kvm_arch_vcpu_put(vcpu);
+ }
+ 
+-int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
++int kvm_init(const void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+ 		  struct module *module)
+ {
+ 	int r;
+@@ -3181,7 +3194,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+ 	if (!vcpu_align)
+ 		vcpu_align = __alignof__(struct kvm_vcpu);
+ 	kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align,
+-					   0, NULL);
++					   SLAB_USERCOPY, NULL);
+ 	if (!kvm_vcpu_cache) {
+ 		r = -ENOMEM;
+ 		goto out_free_3;
+@@ -3191,9 +3204,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+ 	if (r)
+ 		goto out_free;
+ 
++	pax_open_kernel();
+ 	kvm_chardev_ops.owner = module;
+ 	kvm_vm_fops.owner = module;
+ 	kvm_vcpu_fops.owner = module;
++	pax_close_kernel();
+ 
+ 	r = misc_register(&kvm_dev);
+ 	if (r) {
+@@ -3203,9 +3218,6 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+ 
+ 	register_syscore_ops(&kvm_syscore_ops);
+ 
+-	kvm_preempt_ops.sched_in = kvm_sched_in;
+-	kvm_preempt_ops.sched_out = kvm_sched_out;
+-
+ 	r = kvm_init_debug();
+ 	if (r) {
+ 		printk(KERN_ERR "kvm: create debugfs files failed\n");