diff options
Diffstat (limited to 'vserver-sources/old/2.1.1_rc13-r1/4910_vs2.1.1-rc13.patch')
| -rw-r--r-- | vserver-sources/old/2.1.1_rc13-r1/4910_vs2.1.1-rc13.patch | 28174 |
1 files changed, 28174 insertions, 0 deletions
diff --git a/vserver-sources/old/2.1.1_rc13-r1/4910_vs2.1.1-rc13.patch b/vserver-sources/old/2.1.1_rc13-r1/4910_vs2.1.1-rc13.patch new file mode 100644 index 0000000..ecd000b --- /dev/null +++ b/vserver-sources/old/2.1.1_rc13-r1/4910_vs2.1.1-rc13.patch @@ -0,0 +1,28174 @@ +Index: linux-2.6.16/Documentation/vserver/debug.txt +=================================================================== +--- /dev/null ++++ linux-2.6.16/Documentation/vserver/debug.txt +@@ -0,0 +1,108 @@ ++ ++debug_cvirt: ++ ++ 2 4 "vx_map_tgid: %p/%llx: %d -> %d" ++ "vx_rmap_tgid: %p/%llx: %d -> %d" ++ ++debug_dlim: ++ ++ 0 1 "ALLOC (%p,#%d)%c inode (%d)" ++ "FREE (%p,#%d)%c inode" ++ 1 2 "ALLOC (%p,#%d)%c %lld bytes (%d)" ++ "FREE (%p,#%d)%c %lld bytes" ++ 2 4 "ADJUST: %lld,%lld on %d,%d [mult=%d]" ++ 3 8 "ext3_has_free_blocks(%p): %u<%u+1, %c, %u!=%u r=%d" ++ "ext3_has_free_blocks(%p): free=%u, root=%u" ++ "rcu_free_dl_info(%p)" ++ 4 10 "alloc_dl_info(%p,%d) = %p" ++ "dealloc_dl_info(%p)" ++ "get_dl_info(%p[#%d.%d])" ++ "put_dl_info(%p[#%d.%d])" ++ 5 20 "alloc_dl_info(%p,%d)*" ++ 6 40 "__hash_dl_info: %p[#%d]" ++ "__unhash_dl_info: %p[#%d]" ++ 7 80 "locate_dl_info(%p,#%d) = %p" ++ ++debug_net: ++ ++ 2 4 "nx_addr_conflict(%p,%p) %d.%d,%d.%d" ++ 3 8 "inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d" ++ "inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d" ++ 4 10 "ip_route_connect(%p) %p,%p;%lx" ++ 5 20 "__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx" ++ 6 40 "sk,egf: %p [#%d] (from %d)" ++ "sk,egn: %p [#%d] (from %d)" ++ "sk,req: %p [#%d] (from %d)" ++ "sk: %p [#%d] (from %d)" ++ "tw: %p [#%d] (from %d)" ++ 7 80 "__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d" ++ "__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d" ++ ++debug_nid: ++ ++ 0 1 "__lookup_nx_info(#%u): %p[#%u]" ++ "alloc_nx_info(%d) = %p" ++ "create_nx_info(%d) (dynamic rejected)" ++ "create_nx_info(%d) = %p (already there)" ++ "create_nx_info(%d) = %p (new)" ++ "dealloc_nx_info(%p)" ++ 1 2 "alloc_nx_info(%d)*" ++ "create_nx_info(%d)*" ++ 2 4 "get_nx_info(%p[#%d.%d])" ++ "put_nx_info(%p[#%d.%d])" ++ 3 8 "claim_nx_info(%p[#%d.%d.%d]) %p" ++ "clr_nx_info(%p[#%d.%d])" ++ "init_nx_info(%p[#%d.%d])" ++ "release_nx_info(%p[#%d.%d.%d]) %p" ++ "set_nx_info(%p[#%d.%d])" ++ 4 10 "__hash_nx_info: %p[#%d]" ++ "__nx_dynamic_id: [#%d]" ++ "__unhash_nx_info: %p[#%d]" ++ 5 20 "moved task %p into nxi:%p[#%d]" ++ "nx_migrate_task(%p,%p[#%d.%d.%d])" ++ "task_get_nx_info(%p)" ++ ++debug_switch: ++ ++ 0 1 "vc: VCMD_%02d_%d[%d], %d,%p,%d" ++ 1 2 "vc: VCMD_%02d_%d[%d] = %08lx(%ld)" ++ 4 10 "%s: (%s %s) returned %s with %d" ++ ++debug_xid: ++ ++ 0 1 "__lookup_vx_info(#%u): %p[#%u]" ++ "alloc_vx_info(%d) = %p" ++ "alloc_vx_info(%d)*" ++ "create_vx_info(%d) (dynamic rejected)" ++ "create_vx_info(%d) = %p (already there)" ++ "create_vx_info(%d) = %p (new)" ++ "dealloc_vx_info(%p)" ++ 1 2 "create_vx_info(%d)*" ++ 2 4 "get_vx_info(%p[#%d.%d])" ++ "put_vx_info(%p[#%d.%d])" ++ 3 8 "claim_vx_info(%p[#%d.%d.%d]) %p" ++ "clr_vx_info(%p[#%d.%d])" ++ "init_vx_info(%p[#%d.%d])" ++ "release_vx_info(%p[#%d.%d.%d]) %p" ++ "set_vx_info(%p[#%d.%d])" ++ 4 10 "__hash_vx_info: %p[#%d]" ++ "__unhash_vx_info: %p[#%d]" ++ "__vx_dynamic_id: [#%d]" ++ 5 20 "moved task %p into vxi:%p[#%d]" ++ "task_get_vx_info(%p)" ++ "vx_migrate_task(%p,%p[#%d.%d])" ++ 6 40 "vx_set_init(%p[#%d],%p[#%d,%d,%d])" ++ "vx_exit_init(%p[#%d],%p[#%d,%d,%d])" ++ "vx_set_reaper(%p[#%d],%p[#%d,%d])" ++ 7 80 "vx_parse_xid(»%s«): %d:#%d" ++ "vx_propagate_xid(%p[#%lu.%d]): %d,%d" ++ ++ ++debug_limit: ++ ++ n 2^n "vx_acc_cres[%5d,%s,%2d]: %5d%s" ++ "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d" ++ ++ m 2^m "vx_acc_page[%5d,%s,%2d]: %5d%s" ++ "vx_acc_pages[%5d,%s,%2d]: %5d += %5d" ++ "vx_pages_avail[%5d,%s,%2d]: %5ld > %5d + %5d" +Index: linux-2.6.16/Makefile +=================================================================== +--- linux-2.6.16.orig/Makefile ++++ linux-2.6.16/Makefile +@@ -1,7 +1,7 @@ + VERSION = 2 + PATCHLEVEL = 6 + SUBLEVEL = 16 +-EXTRAVERSION = ++EXTRAVERSION = -vs2.1.1-rc13-gentoo + NAME=Sliding Snow Leopard + + # *DOCUMENTATION* +Index: linux-2.6.16/arch/alpha/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/alpha/Kconfig ++++ linux-2.6.16/arch/alpha/Kconfig +@@ -645,6 +645,8 @@ source "arch/alpha/oprofile/Kconfig" + + source "arch/alpha/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/alpha/kernel/asm-offsets.c +=================================================================== +--- linux-2.6.16.orig/arch/alpha/kernel/asm-offsets.c ++++ linux-2.6.16/arch/alpha/kernel/asm-offsets.c +@@ -36,6 +36,7 @@ void foo(void) + DEFINE(PT_PTRACED, PT_PTRACED); + DEFINE(CLONE_VM, CLONE_VM); + DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); ++ DEFINE(CLONE_KTHREAD, CLONE_KTHREAD); + DEFINE(SIGCHLD, SIGCHLD); + BLANK(); + +Index: linux-2.6.16/arch/alpha/kernel/entry.S +=================================================================== +--- linux-2.6.16.orig/arch/alpha/kernel/entry.S ++++ linux-2.6.16/arch/alpha/kernel/entry.S +@@ -645,7 +645,7 @@ kernel_thread: + stq $2, 152($sp) /* HAE */ + + /* Shuffle FLAGS to the front; add CLONE_VM. */ +- ldi $1, CLONE_VM|CLONE_UNTRACED ++ ldi $1, CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD; + or $18, $1, $16 + bsr $26, sys_clone + +@@ -874,24 +874,15 @@ sys_getxgid: + .globl sys_getxpid + .ent sys_getxpid + sys_getxpid: ++ lda $sp, -16($sp) ++ stq $26, 0($sp) + .prologue 0 +- ldq $2, TI_TASK($8) + +- /* See linux/kernel/timer.c sys_getppid for discussion +- about this loop. */ +- ldq $3, TASK_GROUP_LEADER($2) +- ldq $4, TASK_REAL_PARENT($3) +- ldl $0, TASK_TGID($2) +-1: ldl $1, TASK_TGID($4) +-#ifdef CONFIG_SMP +- mov $4, $5 +- mb +- ldq $3, TASK_GROUP_LEADER($2) +- ldq $4, TASK_REAL_PARENT($3) +- cmpeq $4, $5, $5 +- beq $5, 1b +-#endif +- stq $1, 80($sp) ++ lda $16, 96($sp) ++ jsr $26, do_getxpid ++ ldq $26, 0($sp) ++ ++ lda $sp, 16($sp) + ret + .end sys_getxpid + +Index: linux-2.6.16/arch/alpha/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/alpha/kernel/ptrace.c ++++ linux-2.6.16/arch/alpha/kernel/ptrace.c +@@ -15,6 +15,7 @@ + #include <linux/slab.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_pid.h> + + #include <asm/uaccess.h> + #include <asm/pgtable.h> +@@ -283,6 +284,11 @@ do_sys_ptrace(long request, long pid, lo + goto out_notsk; + } + ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) { ++ ret = -EPERM; ++ goto out; ++ } ++ + if (request == PTRACE_ATTACH) { + ret = ptrace_attach(child); + goto out; +Index: linux-2.6.16/arch/alpha/kernel/systbls.S +=================================================================== +--- linux-2.6.16.orig/arch/alpha/kernel/systbls.S ++++ linux-2.6.16/arch/alpha/kernel/systbls.S +@@ -447,7 +447,7 @@ sys_call_table: + .quad sys_stat64 /* 425 */ + .quad sys_lstat64 + .quad sys_fstat64 +- .quad sys_ni_syscall /* sys_vserver */ ++ .quad sys_vserver /* sys_vserver */ + .quad sys_ni_syscall /* sys_mbind */ + .quad sys_ni_syscall /* sys_get_mempolicy */ + .quad sys_ni_syscall /* sys_set_mempolicy */ +Index: linux-2.6.16/arch/alpha/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/alpha/kernel/traps.c ++++ linux-2.6.16/arch/alpha/kernel/traps.c +@@ -216,7 +216,8 @@ die_if_kernel(char * str, struct pt_regs + #ifdef CONFIG_SMP + printk("CPU %d ", hard_smp_processor_id()); + #endif +- printk("%s(%d): %s %ld\n", current->comm, current->pid, str, err); ++ printk("%s(%d[#%u]): %s %ld\n", current->comm, ++ current->pid, current->xid, str, err); + dik_show_regs(regs, r9_15); + dik_show_trace((unsigned long *)(regs+1)); + dik_show_code((unsigned int *)regs->pc); +Index: linux-2.6.16/arch/alpha/mm/init.c +=================================================================== +--- linux-2.6.16.orig/arch/alpha/mm/init.c ++++ linux-2.6.16/arch/alpha/mm/init.c +@@ -21,6 +21,7 @@ + #include <linux/init.h> + #include <linux/bootmem.h> /* max_low_pfn */ + #include <linux/vmalloc.h> ++#include <linux/pagemap.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: linux-2.6.16/arch/arm/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/arm/Kconfig ++++ linux-2.6.16/arch/arm/Kconfig +@@ -828,6 +828,8 @@ source "arch/arm/oprofile/Kconfig" + + source "arch/arm/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/arm/kernel/calls.S +=================================================================== +--- linux-2.6.16.orig/arch/arm/kernel/calls.S ++++ linux-2.6.16/arch/arm/kernel/calls.S +@@ -322,7 +322,7 @@ + /* 310 */ CALL(sys_request_key) + CALL(sys_keyctl) + CALL(ABI(sys_semtimedop, sys_oabi_semtimedop)) +-/* vserver */ CALL(sys_ni_syscall) ++ CALL(sys_vserver) + CALL(sys_ioprio_set) + /* 315 */ CALL(sys_ioprio_get) + CALL(sys_inotify_init) +Index: linux-2.6.16/arch/arm/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/arm/kernel/process.c ++++ linux-2.6.16/arch/arm/kernel/process.c +@@ -227,7 +227,8 @@ void __show_regs(struct pt_regs *regs) + void show_regs(struct pt_regs * regs) + { + printk("\n"); +- printk("Pid: %d, comm: %20s\n", current->pid, current->comm); ++ printk("Pid: %d[#%u], comm: %20s\n", ++ current->pid, current->xid, current->comm); + __show_regs(regs); + __backtrace(); + } +@@ -448,7 +449,8 @@ pid_t kernel_thread(int (*fn)(void *), v + regs.ARM_pc = (unsigned long)kernel_thread_helper; + regs.ARM_cpsr = SVC_MODE; + +- return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + EXPORT_SYMBOL(kernel_thread); + +Index: linux-2.6.16/arch/arm26/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/arm26/Kconfig ++++ linux-2.6.16/arch/arm26/Kconfig +@@ -230,6 +230,8 @@ source "drivers/usb/Kconfig" + + source "arch/arm26/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/arm26/kernel/calls.S +=================================================================== +--- linux-2.6.16.orig/arch/arm26/kernel/calls.S ++++ linux-2.6.16/arch/arm26/kernel/calls.S +@@ -257,6 +257,11 @@ __syscall_start: + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_tkill ++ ++ .rept 313 - (. - __syscall_start) / 4 ++ .long sys_ni_syscall ++ .endr ++ .long sys_vserver /* 313 */ + __syscall_end: + + .rept NR_syscalls - (__syscall_end - __syscall_start) / 4 +Index: linux-2.6.16/arch/arm26/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/arm26/kernel/process.c ++++ linux-2.6.16/arch/arm26/kernel/process.c +@@ -366,7 +366,8 @@ pid_t kernel_thread(int (*fn)(void *), v + regs.ARM_r3 = (unsigned long)do_exit; + regs.ARM_pc = (unsigned long)kernel_thread_helper | MODE_SVC26; + +- return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + EXPORT_SYMBOL(kernel_thread); + +Index: linux-2.6.16/arch/arm26/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/arm26/kernel/traps.c ++++ linux-2.6.16/arch/arm26/kernel/traps.c +@@ -186,8 +186,9 @@ NORET_TYPE void die(const char *str, str + printk("Internal error: %s: %x\n", str, err); + printk("CPU: %d\n", smp_processor_id()); + show_regs(regs); +- printk("Process %s (pid: %d, stack limit = 0x%p)\n", +- current->comm, current->pid, end_of_stack(tsk)); ++ printk("Process %s (pid: %d[#%u], stack limit = 0x%p)\n", ++ current->comm, current->pid, ++ current->xid, end_of_stack(tsk)); + + if (!user_mode(regs) || in_interrupt()) { + __dump_stack(tsk, (unsigned long)(regs + 1)); +Index: linux-2.6.16/arch/cris/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/cris/Kconfig ++++ linux-2.6.16/arch/cris/Kconfig +@@ -173,6 +173,8 @@ source "drivers/usb/Kconfig" + + source "arch/cris/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/cris/arch-v10/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/cris/arch-v10/kernel/process.c ++++ linux-2.6.16/arch/cris/arch-v10/kernel/process.c +@@ -104,7 +104,8 @@ int kernel_thread(int (*fn)(void *), voi + regs.dccr = 1 << I_DCCR_BITNR; + + /* Ok, create the new process.. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + + /* setup the child's kernel stack with a pt_regs and switch_stack on it. +Index: linux-2.6.16/arch/cris/arch-v32/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/cris/arch-v32/kernel/process.c ++++ linux-2.6.16/arch/cris/arch-v32/kernel/process.c +@@ -121,7 +121,8 @@ kernel_thread(int (*fn)(void *), void * + regs.ccs = 1 << (I_CCS_BITNR + CCS_SHIFT); + + /* Create the new process. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + + /* +Index: linux-2.6.16/arch/frv/kernel/kernel_thread.S +=================================================================== +--- linux-2.6.16.orig/arch/frv/kernel/kernel_thread.S ++++ linux-2.6.16/arch/frv/kernel/kernel_thread.S +@@ -13,6 +13,8 @@ + #include <asm/unistd.h> + + #define CLONE_VM 0x00000100 /* set if VM shared between processes */ ++#define CLONE_KTHREAD 0x10000000 /* kernel thread */ ++#define CLONE_KT (CLONE_VM | CLONE_KTHREAD) /* kernel thread flags */ + #define KERN_ERR "<3>" + + .section .rodata +@@ -37,7 +39,7 @@ kernel_thread: + + # start by forking the current process, but with shared VM + setlos.p #__NR_clone,gr7 ; syscall number +- ori gr10,#CLONE_VM,gr8 ; first syscall arg [clone_flags] ++ ori gr10,#CLONE_KT,gr8 ; first syscall arg [clone_flags] + sethi.p #0xe4e4,gr9 ; second syscall arg [newsp] + setlo #0xe4e4,gr9 + setlos.p #0,gr10 ; third syscall arg [parent_tidptr] +Index: linux-2.6.16/arch/frv/mm/mmu-context.c +=================================================================== +--- linux-2.6.16.orig/arch/frv/mm/mmu-context.c ++++ linux-2.6.16/arch/frv/mm/mmu-context.c +@@ -11,6 +11,7 @@ + + #include <linux/sched.h> + #include <linux/mm.h> ++#include <linux/vs_pid.h> + #include <asm/tlbflush.h> + + #define NR_CXN 4096 +Index: linux-2.6.16/arch/h8300/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/h8300/Kconfig ++++ linux-2.6.16/arch/h8300/Kconfig +@@ -191,6 +191,8 @@ source "fs/Kconfig" + + source "arch/h8300/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/h8300/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/h8300/kernel/process.c ++++ linux-2.6.16/arch/h8300/kernel/process.c +@@ -135,7 +135,7 @@ int kernel_thread(int (*fn)(void *), voi + + fs = get_fs(); + set_fs (KERNEL_DS); +- clone_arg = flags | CLONE_VM; ++ clone_arg = flags | CLONE_VM | CLONE_KTHREAD; + __asm__("mov.l sp,er3\n\t" + "sub.l er2,er2\n\t" + "mov.l %2,er1\n\t" +Index: linux-2.6.16/arch/i386/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/i386/Kconfig ++++ linux-2.6.16/arch/i386/Kconfig +@@ -466,23 +466,43 @@ choice + will also likely make your kernel incompatible with binary-only + kernel modules. + +- If you are not absolutely sure what you are doing, leave this +- option alone! +- + config VMSPLIT_3G +- bool "3G/1G user/kernel split" +- config VMSPLIT_3G_OPT +- bool "3G/1G user/kernel split (for full 1G low memory)" ++ bool "3G/1G user/kernel split (Default)" ++ help ++ This is the default split of 3GB userspace to 1GB kernel ++ space, which will result in about 860MB of lowmem. ++ ++ config VMSPLIT_25G ++ bool "2.5G/1.5G user/kernel split" ++ help ++ This split provides 2.5GB userspace and 1.5GB kernel ++ space, which will result in about 1370MB of lowmem. ++ + config VMSPLIT_2G + bool "2G/2G user/kernel split" ++ help ++ This split provides 2GB userspace and 2GB kernel ++ space, which will result in about 1880MB of lowmem. ++ ++ config VMSPLIT_15G ++ bool "1.5G/2.5G user/kernel split" ++ help ++ This split provides 1.5GB userspace and 2.5GB kernel ++ space, which will result in about 2390MB of lowmem. ++ + config VMSPLIT_1G + bool "1G/3G user/kernel split" ++ help ++ This split provides 1GB userspace and 3GB kernel ++ space, which will result in about 2900MB of lowmem. ++ + endchoice + + config PAGE_OFFSET + hex +- default 0xB0000000 if VMSPLIT_3G_OPT +- default 0x78000000 if VMSPLIT_2G ++ default 0xA0000000 if VMSPLIT_25G ++ default 0x80000000 if VMSPLIT_2G ++ default 0x60000000 if VMSPLIT_15G + default 0x40000000 if VMSPLIT_1G + default 0xC0000000 + +@@ -1071,6 +1091,8 @@ endmenu + + source "arch/i386/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/i386/boot/compressed/misc.c +=================================================================== +--- linux-2.6.16.orig/arch/i386/boot/compressed/misc.c ++++ linux-2.6.16/arch/i386/boot/compressed/misc.c +@@ -309,7 +309,7 @@ static void setup_normal_output_buffer(v + #else + if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory"); + #endif +- output_data = (char *)__PHYSICAL_START; /* Normally Points to 1M */ ++ output_data = (char *)PHYSICAL_START; /* Normally Points to 1M */ + free_mem_end_ptr = (long)real_mode; + } + +@@ -334,8 +334,8 @@ static void setup_output_buffer_if_we_ru + low_buffer_size = low_buffer_end - LOW_BUFFER_START; + high_loaded = 1; + free_mem_end_ptr = (long)high_buffer_start; +- if ( (__PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) { +- high_buffer_start = (uch *)(__PHYSICAL_START + low_buffer_size); ++ if ((PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) { ++ high_buffer_start = (uch *)(PHYSICAL_START + low_buffer_size); + mv->hcount = 0; /* say: we need not to move high_buffer */ + } + else mv->hcount = -1; +Index: linux-2.6.16/arch/i386/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/i386/kernel/process.c ++++ linux-2.6.16/arch/i386/kernel/process.c +@@ -291,8 +291,10 @@ void show_regs(struct pt_regs * regs) + unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L; + + printk("\n"); +- printk("Pid: %d, comm: %20s\n", current->pid, current->comm); +- printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id()); ++ printk("Pid: %d[#%u], comm: %20s\n", ++ current->pid, current->xid, current->comm); ++ printk("EIP: %04x:[<%08lx>] CPU: %d\n", ++ 0xffff & regs->xcs,regs->eip, smp_processor_id()); + print_symbol("EIP is at %s\n", regs->eip); + + if (user_mode(regs)) +@@ -352,7 +354,8 @@ int kernel_thread(int (*fn)(void *), voi + regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2; + + /* Ok, create the new process.. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + EXPORT_SYMBOL(kernel_thread); + +Index: linux-2.6.16/arch/i386/kernel/setup.c +=================================================================== +--- linux-2.6.16.orig/arch/i386/kernel/setup.c ++++ linux-2.6.16/arch/i386/kernel/setup.c +@@ -1192,8 +1192,8 @@ void __init setup_bootmem_allocator(void + * the (very unlikely) case of us accidentally initializing the + * bootmem allocator with an invalid RAM area. + */ +- reserve_bootmem(__PHYSICAL_START, (PFN_PHYS(min_low_pfn) + +- bootmap_size + PAGE_SIZE-1) - (__PHYSICAL_START)); ++ reserve_bootmem(PHYSICAL_START, (PFN_PHYS(min_low_pfn) + ++ bootmap_size + PAGE_SIZE-1) - (PHYSICAL_START)); + + /* + * reserve physical page 0 - it's a special BIOS page on many boxes, +Index: linux-2.6.16/arch/i386/kernel/sys_i386.c +=================================================================== +--- linux-2.6.16.orig/arch/i386/kernel/sys_i386.c ++++ linux-2.6.16/arch/i386/kernel/sys_i386.c +@@ -19,6 +19,7 @@ + #include <linux/mman.h> + #include <linux/file.h> + #include <linux/utsname.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -217,7 +218,7 @@ asmlinkage int sys_uname(struct old_utsn + if (!name) + return -EFAULT; + down_read(&uts_sem); +- err=copy_to_user(name, &system_utsname, sizeof (*name)); ++ err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + return err?-EFAULT:0; + } +@@ -225,6 +226,7 @@ asmlinkage int sys_uname(struct old_utsn + asmlinkage int sys_olduname(struct oldold_utsname __user * name) + { + int error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; +@@ -233,15 +235,16 @@ asmlinkage int sys_olduname(struct oldol + + down_read(&uts_sem); + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); + error |= __put_user(0,name->sysname+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); + error |= __put_user(0,name->nodename+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); + error |= __put_user(0,name->release+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); + error |= __put_user(0,name->version+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN); + error |= __put_user(0,name->machine+__OLD_UTS_LEN); + + up_read(&uts_sem); +Index: linux-2.6.16/arch/i386/kernel/syscall_table.S +=================================================================== +--- linux-2.6.16.orig/arch/i386/kernel/syscall_table.S ++++ linux-2.6.16/arch/i386/kernel/syscall_table.S +@@ -272,7 +272,7 @@ ENTRY(sys_call_table) + .long sys_tgkill /* 270 */ + .long sys_utimes + .long sys_fadvise64_64 +- .long sys_ni_syscall /* sys_vserver */ ++ .long sys_vserver + .long sys_mbind + .long sys_get_mempolicy + .long sys_set_mempolicy +Index: linux-2.6.16/arch/i386/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/i386/kernel/traps.c ++++ linux-2.6.16/arch/i386/kernel/traps.c +@@ -53,6 +53,7 @@ + #include <asm/kdebug.h> + + #include <linux/module.h> ++#include <linux/vserver/debug.h> + + #include "mach_traps.h" + +@@ -252,8 +253,9 @@ void show_registers(struct pt_regs *regs + regs->esi, regs->edi, regs->ebp, esp); + printk(KERN_EMERG "ds: %04x es: %04x ss: %04x\n", + regs->xds & 0xffff, regs->xes & 0xffff, ss); +- printk(KERN_EMERG "Process %s (pid: %d, threadinfo=%p task=%p)", +- current->comm, current->pid, current_thread_info(), current); ++ printk(KERN_EMERG "Process %s (pid: %d[#%u], threadinfo=%p task=%p)", ++ current->comm, current->pid, current->xid, ++ current_thread_info(), current); + /* + * When in-kernel, we also print out the stack and code at the + * time of the fault.. +@@ -333,6 +335,8 @@ void die(const char * str, struct pt_reg + static int die_counter; + unsigned long flags; + ++ vxh_throw_oops(); ++ + if (die.lock_owner != raw_smp_processor_id()) { + console_verbose(); + spin_lock_irqsave(&die.lock, flags); +@@ -365,8 +369,9 @@ void die(const char * str, struct pt_reg + #endif + if (nl) + printk("\n"); +- notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); ++ notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); + show_registers(regs); ++ vxh_dump_history(); + } else + printk(KERN_EMERG "Recursive die() failure, output suppressed\n"); + +Index: linux-2.6.16/arch/ia64/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/ia64/Kconfig ++++ linux-2.6.16/arch/ia64/Kconfig +@@ -464,6 +464,8 @@ endmenu + + source "arch/ia64/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/ia64/ia32/binfmt_elf32.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/ia32/binfmt_elf32.c ++++ linux-2.6.16/arch/ia64/ia32/binfmt_elf32.c +@@ -236,7 +236,8 @@ ia32_setup_arg_pages (struct linux_binpr + kmem_cache_free(vm_area_cachep, mpnt); + return ret; + } +- current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt); ++ vx_vmpages_sub(current->mm, current->mm->total_vm - vma_pages(mpnt)); ++ current->mm->stack_vm = current->mm->total_vm; + } + + for (i = 0 ; i < MAX_ARG_PAGES ; i++) { +Index: linux-2.6.16/arch/ia64/ia32/ia32_entry.S +=================================================================== +--- linux-2.6.16.orig/arch/ia64/ia32/ia32_entry.S ++++ linux-2.6.16/arch/ia64/ia32/ia32_entry.S +@@ -483,7 +483,7 @@ ia32_syscall_table: + data8 sys_tgkill /* 270 */ + data8 compat_sys_utimes + data8 sys32_fadvise64_64 +- data8 sys_ni_syscall ++ data8 sys32_vserver + data8 sys_ni_syscall + data8 sys_ni_syscall /* 275 */ + data8 sys_ni_syscall +Index: linux-2.6.16/arch/ia64/ia32/sys_ia32.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/ia32/sys_ia32.c ++++ linux-2.6.16/arch/ia64/ia32/sys_ia32.c +@@ -52,6 +52,7 @@ + #include <linux/compat.h> + #include <linux/vfs.h> + #include <linux/mman.h> ++#include <linux/vs_pid.h> + #include <linux/mutex.h> + + #include <asm/intrinsics.h> +Index: linux-2.6.16/arch/ia64/kernel/asm-offsets.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/asm-offsets.c ++++ linux-2.6.16/arch/ia64/kernel/asm-offsets.c +@@ -192,6 +192,7 @@ void foo(void) + /* for assembly files which can't include sched.h: */ + DEFINE(IA64_CLONE_VFORK, CLONE_VFORK); + DEFINE(IA64_CLONE_VM, CLONE_VM); ++ DEFINE(IA64_CLONE_KTHREAD, CLONE_KTHREAD); + + BLANK(); + DEFINE(IA64_CPUINFO_NSEC_PER_CYC_OFFSET, +Index: linux-2.6.16/arch/ia64/kernel/entry.S +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/entry.S ++++ linux-2.6.16/arch/ia64/kernel/entry.S +@@ -1591,7 +1591,7 @@ sys_call_table: + data8 sys_mq_notify + data8 sys_mq_getsetattr + data8 sys_ni_syscall // reserved for kexec_load +- data8 sys_ni_syscall // reserved for vserver ++ data8 sys_vserver + data8 sys_waitid // 1270 + data8 sys_add_key + data8 sys_request_key +Index: linux-2.6.16/arch/ia64/kernel/perfmon.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/perfmon.c ++++ linux-2.6.16/arch/ia64/kernel/perfmon.c +@@ -41,6 +41,8 @@ + #include <linux/capability.h> + #include <linux/rcupdate.h> + #include <linux/completion.h> ++#include <linux/vs_memory.h> ++#include <linux/vs_pid.h> + + #include <asm/errno.h> + #include <asm/intrinsics.h> +@@ -2355,7 +2357,7 @@ pfm_smpl_buffer_alloc(struct task_struct + */ + insert_vm_struct(mm, vma); + +- mm->total_vm += size >> PAGE_SHIFT; ++ vx_vmpages_add(mm, size >> PAGE_SHIFT); + vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file, + vma_pages(vma)); + up_write(&task->mm->mmap_sem); +Index: linux-2.6.16/arch/ia64/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/process.c ++++ linux-2.6.16/arch/ia64/kernel/process.c +@@ -109,7 +109,8 @@ show_regs (struct pt_regs *regs) + unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri; + + print_modules(); +- printk("\nPid: %d, CPU %d, comm: %20s\n", current->pid, smp_processor_id(), current->comm); ++ printk("\nPid: %d[#%u], CPU %d, comm: %20s\n", ++ current->pid, current->xid, smp_processor_id(), current->comm); + printk("psr : %016lx ifs : %016lx ip : [<%016lx>] %s\n", + regs->cr_ipsr, regs->cr_ifs, ip, print_tainted()); + print_symbol("ip is at %s\n", ip); +@@ -692,7 +693,8 @@ kernel_thread (int (*fn)(void *), void * + regs.sw.ar_fpsr = regs.pt.ar_fpsr = ia64_getreg(_IA64_REG_AR_FPSR); + regs.sw.ar_bspstore = (unsigned long) current + IA64_RBS_OFFSET; + regs.sw.pr = (1 << PRED_KERNEL_STACK); +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s.pt, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s.pt, 0, NULL, NULL); + } + EXPORT_SYMBOL(kernel_thread); + +Index: linux-2.6.16/arch/ia64/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/ptrace.c ++++ linux-2.6.16/arch/ia64/kernel/ptrace.c +@@ -18,6 +18,7 @@ + #include <linux/security.h> + #include <linux/audit.h> + #include <linux/signal.h> ++#include <linux/vs_pid.h> + + #include <asm/pgtable.h> + #include <asm/processor.h> +@@ -1443,6 +1444,9 @@ sys_ptrace (long request, pid_t pid, uns + read_unlock(&tasklist_lock); + if (!child) + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; ++ + ret = -EPERM; + if (pid == 1) /* no messing around with init! */ + goto out_tsk; +Index: linux-2.6.16/arch/ia64/kernel/signal.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/signal.c ++++ linux-2.6.16/arch/ia64/kernel/signal.c +@@ -21,6 +21,7 @@ + #include <linux/binfmts.h> + #include <linux/unistd.h> + #include <linux/wait.h> ++#include <linux/vs_pid.h> + + #include <asm/ia32.h> + #include <asm/intrinsics.h> +Index: linux-2.6.16/arch/ia64/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/kernel/traps.c ++++ linux-2.6.16/arch/ia64/kernel/traps.c +@@ -107,8 +107,9 @@ die (const char *str, struct pt_regs *re + put_cpu(); + + if (++die.lock_owner_depth < 3) { +- printk("%s[%d]: %s %ld [%d]\n", +- current->comm, current->pid, str, err, ++die_counter); ++ printk("%s[%d[#%u]]: %s %ld [%d]\n", ++ current->comm, current->pid, current->xid, ++ str, err, ++die_counter); + (void) notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); + show_regs(regs); + } else +@@ -335,8 +336,9 @@ handle_fpu_swa (int fp_fault, struct pt_ + last_time = jiffies; + ++fpu_swa_count; + printk(KERN_WARNING +- "%s(%d): floating-point assist fault at ip %016lx, isr %016lx\n", +- current->comm, current->pid, regs->cr_iip + ia64_psr(regs)->ri, isr); ++ "%s(%d[#%u]): floating-point assist fault at ip %016lx, isr %016lx\n", ++ current->comm, current->pid, current->xid, ++ regs->cr_iip + ia64_psr(regs)->ri, isr); + } + + exception = fp_emulate(fp_fault, bundle, ®s->cr_ipsr, ®s->ar_fpsr, &isr, ®s->pr, +Index: linux-2.6.16/arch/ia64/mm/fault.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/mm/fault.c ++++ linux-2.6.16/arch/ia64/mm/fault.c +@@ -10,6 +10,7 @@ + #include <linux/smp_lock.h> + #include <linux/interrupt.h> + #include <linux/kprobes.h> ++#include <linux/vs_memory.h> + + #include <asm/pgtable.h> + #include <asm/processor.h> +Index: linux-2.6.16/arch/ia64/sn/kernel/xpc_main.c +=================================================================== +--- linux-2.6.16.orig/arch/ia64/sn/kernel/xpc_main.c ++++ linux-2.6.16/arch/ia64/sn/kernel/xpc_main.c +@@ -109,6 +109,7 @@ static ctl_table xpc_sys_xpc_hb_dir[] = + 0644, + NULL, + &proc_dointvec_minmax, ++ NULL, + &sysctl_intvec, + NULL, + &xpc_hb_min_interval, +@@ -122,6 +123,7 @@ static ctl_table xpc_sys_xpc_hb_dir[] = + 0644, + NULL, + &proc_dointvec_minmax, ++ NULL, + &sysctl_intvec, + NULL, + &xpc_hb_check_min_interval, +@@ -146,6 +148,7 @@ static ctl_table xpc_sys_xpc_dir[] = { + 0644, + NULL, + &proc_dointvec_minmax, ++ NULL, + &sysctl_intvec, + NULL, + &xpc_disengage_request_min_timelimit, +Index: linux-2.6.16/arch/m32r/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/m32r/kernel/process.c ++++ linux-2.6.16/arch/m32r/kernel/process.c +@@ -208,8 +208,8 @@ int kernel_thread(int (*fn)(void *), voi + regs.psw = M32R_PSW_BIE; + + /* Ok, create the new process. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, +- NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + + /* +Index: linux-2.6.16/arch/m32r/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/m32r/kernel/traps.c ++++ linux-2.6.16/arch/m32r/kernel/traps.c +@@ -196,8 +196,9 @@ static void show_registers(struct pt_reg + } else { + printk("SPI: %08lx\n", sp); + } +- printk("Process %s (pid: %d, process nr: %d, stackpage=%08lx)", +- current->comm, current->pid, 0xffff & i, 4096+(unsigned long)current); ++ printk("Process %s (pid: %d[#%u], process nr: %d, stackpage=%08lx)", ++ current->comm, current->pid, current->xid, ++ 0xffff & i, 4096+(unsigned long)current); + + /* + * When in-kernel, we also print out the stack and code at the +Index: linux-2.6.16/arch/m68k/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/m68k/Kconfig ++++ linux-2.6.16/arch/m68k/Kconfig +@@ -650,6 +650,8 @@ source "fs/Kconfig" + + source "arch/m68k/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/m68k/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/m68k/kernel/process.c ++++ linux-2.6.16/arch/m68k/kernel/process.c +@@ -160,7 +160,8 @@ int kernel_thread(int (*fn)(void *), voi + + { + register long retval __asm__ ("d0"); +- register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED; ++ register long clone_arg __asm__ ("d1") = ++ flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD; + + retval = __NR_clone; + __asm__ __volatile__ +Index: linux-2.6.16/arch/m68k/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/m68k/kernel/ptrace.c ++++ linux-2.6.16/arch/m68k/kernel/ptrace.c +@@ -280,6 +280,8 @@ long arch_ptrace(struct task_struct *chi + ret = ptrace_request(child, request, addr, data); + break; + } ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + return ret; + out_eio: +Index: linux-2.6.16/arch/m68k/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/m68k/kernel/traps.c ++++ linux-2.6.16/arch/m68k/kernel/traps.c +@@ -1198,8 +1198,9 @@ void die_if_kernel (char *str, struct pt + printk("d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", + fp->d4, fp->d5, fp->a0, fp->a1); + +- printk("Process %s (pid: %d, stackpage=%08lx)\n", +- current->comm, current->pid, PAGE_SIZE+(unsigned long)current); ++ printk("Process %s (pid: %d[#%u], stackpage=%08lx)\n", ++ current->comm, current->pid, current->xid, ++ PAGE_SIZE+(unsigned long)current); + show_stack(NULL, (unsigned long *)fp); + do_exit(SIGSEGV); + } +Index: linux-2.6.16/arch/m68knommu/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/m68knommu/Kconfig ++++ linux-2.6.16/arch/m68knommu/Kconfig +@@ -646,6 +646,8 @@ source "fs/Kconfig" + + source "arch/m68knommu/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/m68knommu/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/m68knommu/kernel/process.c ++++ linux-2.6.16/arch/m68knommu/kernel/process.c +@@ -123,7 +123,7 @@ void show_regs(struct pt_regs * regs) + int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) + { + int retval; +- long clone_arg = flags | CLONE_VM; ++ long clone_arg = flags | CLONE_VM | CLONE_KTHREAD; + mm_segment_t fs; + + fs = get_fs(); +Index: linux-2.6.16/arch/m68knommu/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/m68knommu/kernel/traps.c ++++ linux-2.6.16/arch/m68knommu/kernel/traps.c +@@ -81,8 +81,9 @@ void die_if_kernel(char *str, struct pt_ + printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", + fp->d4, fp->d5, fp->a0, fp->a1); + +- printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n", +- current->comm, current->pid, PAGE_SIZE+(unsigned long)current); ++ printk(KERN_EMERG "Process %s (pid: %d[#%u], stackpage=%08lx)\n", ++ current->comm, current->pid, current->xid, ++ PAGE_SIZE+(unsigned long)current); + show_stack(NULL, (unsigned long *)fp); + do_exit(SIGSEGV); + } +Index: linux-2.6.16/arch/mips/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/mips/Kconfig ++++ linux-2.6.16/arch/mips/Kconfig +@@ -1814,6 +1814,8 @@ source "arch/mips/oprofile/Kconfig" + + source "arch/mips/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/mips/kernel/linux32.c +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/linux32.c ++++ linux-2.6.16/arch/mips/kernel/linux32.c +@@ -37,6 +37,7 @@ + #include <linux/security.h> + #include <linux/compat.h> + #include <linux/vfs.h> ++#include <linux/vs_cvirt.h> + + #include <net/sock.h> + #include <net/scm.h> +@@ -1099,7 +1100,7 @@ asmlinkage long sys32_newuname(struct ne + int ret = 0; + + down_read(&uts_sem); +- if (copy_to_user(name,&system_utsname,sizeof *name)) ++ if (copy_to_user(name, vx_new_utsname(), sizeof *name)) + ret = -EFAULT; + up_read(&uts_sem); + +Index: linux-2.6.16/arch/mips/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/process.c ++++ linux-2.6.16/arch/mips/kernel/process.c +@@ -268,7 +268,8 @@ long kernel_thread(int (*fn)(void *), vo + #endif + + /* Ok, create the new process.. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + + static struct mips_frame_info { +Index: linux-2.6.16/arch/mips/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/ptrace.c ++++ linux-2.6.16/arch/mips/kernel/ptrace.c +@@ -476,6 +476,8 @@ asmlinkage void do_syscall_trace(struct + goto out; + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + /* The 0x80 provides a way for the tracing parent to distinguish + between a syscall stop and SIGTRAP delivery */ +Index: linux-2.6.16/arch/mips/kernel/scall32-o32.S +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/scall32-o32.S ++++ linux-2.6.16/arch/mips/kernel/scall32-o32.S +@@ -607,7 +607,7 @@ einval: li v0, -EINVAL + sys sys_mq_timedreceive 5 + sys sys_mq_notify 2 /* 4275 */ + sys sys_mq_getsetattr 3 +- sys sys_ni_syscall 0 /* sys_vserver */ ++ sys sys_vserver 3 + sys sys_waitid 5 + sys sys_ni_syscall 0 /* available, was setaltroot */ + sys sys_add_key 5 /* 4280 */ +Index: linux-2.6.16/arch/mips/kernel/scall64-64.S +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/scall64-64.S ++++ linux-2.6.16/arch/mips/kernel/scall64-64.S +@@ -433,7 +433,7 @@ sys_call_table: + PTR sys_mq_timedreceive + PTR sys_mq_notify + PTR sys_mq_getsetattr /* 5235 */ +- PTR sys_ni_syscall /* sys_vserver */ ++ PTR sys_vserver + PTR sys_waitid + PTR sys_ni_syscall /* available, was setaltroot */ + PTR sys_add_key +Index: linux-2.6.16/arch/mips/kernel/scall64-n32.S +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/scall64-n32.S ++++ linux-2.6.16/arch/mips/kernel/scall64-n32.S +@@ -359,7 +359,7 @@ EXPORT(sysn32_call_table) + PTR compat_sys_mq_timedreceive + PTR compat_sys_mq_notify + PTR compat_sys_mq_getsetattr +- PTR sys_ni_syscall /* 6240, sys_vserver */ ++ PTR sys32_vserver /* 6240 */ + PTR sysn32_waitid + PTR sys_ni_syscall /* available, was setaltroot */ + PTR sys_add_key +Index: linux-2.6.16/arch/mips/kernel/scall64-o32.S +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/scall64-o32.S ++++ linux-2.6.16/arch/mips/kernel/scall64-o32.S +@@ -481,7 +481,7 @@ sys_call_table: + PTR compat_sys_mq_timedreceive + PTR compat_sys_mq_notify /* 4275 */ + PTR compat_sys_mq_getsetattr +- PTR sys_ni_syscall /* sys_vserver */ ++ PTR sys32_vserver + PTR sys32_waitid + PTR sys_ni_syscall /* available, was setaltroot */ + PTR sys_add_key /* 4280 */ +Index: linux-2.6.16/arch/mips/kernel/syscall.c +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/syscall.c ++++ linux-2.6.16/arch/mips/kernel/syscall.c +@@ -29,6 +29,7 @@ + #include <linux/shm.h> + #include <linux/compiler.h> + #include <linux/module.h> ++#include <linux/vs_cvirt.h> + + #include <asm/branch.h> + #include <asm/cachectl.h> +@@ -229,7 +230,7 @@ out: + */ + asmlinkage int sys_uname(struct old_utsname __user * name) + { +- if (name && !copy_to_user(name, &system_utsname, sizeof (*name))) ++ if (name && !copy_to_user(name, vx_new_utsname(), sizeof (*name))) + return 0; + return -EFAULT; + } +@@ -240,21 +241,23 @@ asmlinkage int sys_uname(struct old_utsn + asmlinkage int sys_olduname(struct oldold_utsname __user * name) + { + int error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; + if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) + return -EFAULT; + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); + error -= __put_user(0,name->sysname+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); + error -= __put_user(0,name->nodename+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); + error -= __put_user(0,name->release+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); + error -= __put_user(0,name->version+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN); + error = __put_user(0,name->machine+__OLD_UTS_LEN); + error = error ? -EFAULT : 0; + +@@ -290,10 +293,10 @@ asmlinkage int _sys_sysmips(int cmd, lon + return -EFAULT; + + down_write(&uts_sem); +- strncpy(system_utsname.nodename, nodename, len); ++ strncpy(vx_new_uts(nodename), nodename, len); + nodename[__NEW_UTS_LEN] = '\0'; +- strlcpy(system_utsname.nodename, nodename, +- sizeof(system_utsname.nodename)); ++ strlcpy(vx_new_uts(nodename), nodename, ++ sizeof(vx_new_uts(nodename))); + up_write(&uts_sem); + return 0; + } +Index: linux-2.6.16/arch/mips/kernel/sysirix.c +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/sysirix.c ++++ linux-2.6.16/arch/mips/kernel/sysirix.c +@@ -31,6 +31,7 @@ + #include <linux/socket.h> + #include <linux/security.h> + #include <linux/syscalls.h> ++#include <linux/vs_pid.h> + + #include <asm/ptrace.h> + #include <asm/page.h> +Index: linux-2.6.16/arch/mips/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/mips/kernel/traps.c ++++ linux-2.6.16/arch/mips/kernel/traps.c +@@ -266,8 +266,9 @@ void show_registers(struct pt_regs *regs + { + show_regs(regs); + print_modules(); +- printk("Process %s (pid: %d, threadinfo=%p, task=%p)\n", +- current->comm, current->pid, current_thread_info(), current); ++ printk("Process %s (pid: %d[#%u], threadinfo=%p, task=%p)\n", ++ current->comm, current->pid, current->xid, ++ current_thread_info(), current); + show_stack(current, (long *) regs->regs[29]); + show_trace(current, (long *) regs->regs[29]); + show_code((unsigned int *) regs->cp0_epc); +Index: linux-2.6.16/arch/parisc/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/parisc/Kconfig ++++ linux-2.6.16/arch/parisc/Kconfig +@@ -213,6 +213,8 @@ source "arch/parisc/oprofile/Kconfig" + + source "arch/parisc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/parisc/kernel/entry.S +=================================================================== +--- linux-2.6.16.orig/arch/parisc/kernel/entry.S ++++ linux-2.6.16/arch/parisc/kernel/entry.S +@@ -756,6 +756,7 @@ fault_vector_11: + + #define CLONE_VM 0x100 /* Must agree with <linux/sched.h> */ + #define CLONE_UNTRACED 0x00800000 ++#define CLONE_KTHREAD 0x10000000 + + .export __kernel_thread, code + .import do_fork +Index: linux-2.6.16/arch/parisc/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/parisc/kernel/process.c ++++ linux-2.6.16/arch/parisc/kernel/process.c +@@ -178,7 +178,7 @@ pid_t kernel_thread(int (*fn)(void *), v + * kernel_thread can become a #define. + */ + +- return __kernel_thread(fn, arg, flags); ++ return __kernel_thread(fn, arg, flags | CLONE_KTHREAD); + } + EXPORT_SYMBOL(kernel_thread); + +Index: linux-2.6.16/arch/parisc/kernel/sys_parisc32.c +=================================================================== +--- linux-2.6.16.orig/arch/parisc/kernel/sys_parisc32.c ++++ linux-2.6.16/arch/parisc/kernel/sys_parisc32.c +@@ -657,6 +657,7 @@ asmlinkage int sys32_sysinfo(struct sysi + + do { + seq = read_seqbegin(&xtime_lock); ++ /* FIXME: requires vx virtualization */ + val.uptime = jiffies / HZ; + + val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT); +Index: linux-2.6.16/arch/parisc/kernel/syscall_table.S +=================================================================== +--- linux-2.6.16.orig/arch/parisc/kernel/syscall_table.S ++++ linux-2.6.16/arch/parisc/kernel/syscall_table.S +@@ -368,7 +368,7 @@ + ENTRY_COMP(mbind) /* 260 */ + ENTRY_COMP(get_mempolicy) + ENTRY_COMP(set_mempolicy) +- ENTRY_SAME(ni_syscall) /* 263: reserved for vserver */ ++ ENTRY_DIFF(vserver) + ENTRY_SAME(add_key) + ENTRY_SAME(request_key) /* 265 */ + ENTRY_SAME(keyctl) +Index: linux-2.6.16/arch/parisc/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/parisc/kernel/traps.c ++++ linux-2.6.16/arch/parisc/kernel/traps.c +@@ -214,8 +214,9 @@ void die_if_kernel(char *str, struct pt_ + if (err == 0) + return; /* STFU */ + +- printk(KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n", +- current->comm, current->pid, str, err, regs->iaoq[0]); ++ printk(KERN_CRIT "%s (pid %d[#%u]): %s (code %ld) at " RFMT "\n", ++ current->comm, current->pid, current->xid, ++ str, err, regs->iaoq[0]); + #ifdef PRINT_USER_FAULTS + /* XXX for debugging only */ + show_regs(regs); +@@ -246,8 +247,8 @@ void die_if_kernel(char *str, struct pt_ + if (!console_drivers) + pdc_console_restart(); + +- printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n", +- current->comm, current->pid, str, err); ++ printk(KERN_CRIT "%s (pid %d[#%u]): %s (code %ld)\n", ++ current->comm, current->pid, current->xid, str, err); + show_regs(regs); + + /* Wot's wrong wif bein' racy? */ +Index: linux-2.6.16/arch/powerpc/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/Kconfig ++++ linux-2.6.16/arch/powerpc/Kconfig +@@ -974,6 +974,8 @@ endmenu + + source "arch/powerpc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + config KEYS_COMPAT +Index: linux-2.6.16/arch/powerpc/kernel/asm-offsets.c +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/asm-offsets.c ++++ linux-2.6.16/arch/powerpc/kernel/asm-offsets.c +@@ -229,6 +229,7 @@ int main(void) + + DEFINE(CLONE_VM, CLONE_VM); + DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); ++ DEFINE(CLONE_KTHREAD, CLONE_KTHREAD); + + #ifndef CONFIG_PPC64 + DEFINE(MM_PGD, offsetof(struct mm_struct, pgd)); +Index: linux-2.6.16/arch/powerpc/kernel/misc_32.S +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/misc_32.S ++++ linux-2.6.16/arch/powerpc/kernel/misc_32.S +@@ -980,7 +980,7 @@ _GLOBAL(kernel_thread) + mr r30,r3 /* function */ + mr r31,r4 /* argument */ + ori r3,r5,CLONE_VM /* flags */ +- oris r3,r3,CLONE_UNTRACED>>16 ++ oris r3,r3,(CLONE_UNTRACED|CLONE_KTHREAD)>>16 + li r4,0 /* new sp (unused) */ + li r0,__NR_clone + sc +Index: linux-2.6.16/arch/powerpc/kernel/misc_64.S +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/misc_64.S ++++ linux-2.6.16/arch/powerpc/kernel/misc_64.S +@@ -684,7 +684,7 @@ _GLOBAL(kernel_thread) + mr r29,r3 + mr r30,r4 + ori r3,r5,CLONE_VM /* flags */ +- oris r3,r3,(CLONE_UNTRACED>>16) ++ oris r3,r3,(CLONE_UNTRACED|CLONE_KTHREAD)>>16 + li r4,0 /* new sp (unused) */ + li r0,__NR_clone + sc +Index: linux-2.6.16/arch/powerpc/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/process.c ++++ linux-2.6.16/arch/powerpc/kernel/process.c +@@ -425,8 +425,9 @@ void show_regs(struct pt_regs * regs) + trap = TRAP(regs); + if (trap == 0x300 || trap == 0x600) + printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr); +- printk("TASK = %p[%d] '%s' THREAD: %p", +- current, current->pid, current->comm, task_thread_info(current)); ++ printk("TASK = %p[%d,#%u] '%s' THREAD: %p", ++ current, current->pid, current->xid, ++ current->comm, task_thread_info(current)); + + #ifdef CONFIG_SMP + printk(" CPU: %d", smp_processor_id()); +Index: linux-2.6.16/arch/powerpc/kernel/syscalls.c +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/syscalls.c ++++ linux-2.6.16/arch/powerpc/kernel/syscalls.c +@@ -36,6 +36,7 @@ + #include <linux/file.h> + #include <linux/init.h> + #include <linux/personality.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -259,7 +260,7 @@ long ppc_newuname(struct new_utsname __u + int err = 0; + + down_read(&uts_sem); +- if (copy_to_user(name, &system_utsname, sizeof(*name))) ++ if (copy_to_user(name, vx_new_utsname(), sizeof(*name))) + err = -EFAULT; + up_read(&uts_sem); + if (!err) +@@ -272,7 +273,7 @@ int sys_uname(struct old_utsname __user + int err = 0; + + down_read(&uts_sem); +- if (copy_to_user(name, &system_utsname, sizeof(*name))) ++ if (copy_to_user(name, vx_new_utsname(), sizeof(*name))) + err = -EFAULT; + up_read(&uts_sem); + if (!err) +@@ -283,25 +284,22 @@ int sys_uname(struct old_utsname __user + int sys_olduname(struct oldold_utsname __user *name) + { + int error; ++ struct new_utsname *ptr; + + if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname))) + return -EFAULT; + + down_read(&uts_sem); +- error = __copy_to_user(&name->sysname, &system_utsname.sysname, +- __OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname, ptr->sysname, __OLD_UTS_LEN); + error |= __put_user(0, name->sysname + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename, &system_utsname.nodename, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->nodename, ptr->nodename, __OLD_UTS_LEN); + error |= __put_user(0, name->nodename + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->release, &system_utsname.release, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->release, ptr->release, __OLD_UTS_LEN); + error |= __put_user(0, name->release + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->version, &system_utsname.version, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->version, ptr->version, __OLD_UTS_LEN); + error |= __put_user(0, name->version + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine, &system_utsname.machine, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->machine, ptr->machine, __OLD_UTS_LEN); + error |= override_machine(name->machine); + up_read(&uts_sem); + +Index: linux-2.6.16/arch/powerpc/kernel/systbl.S +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/systbl.S ++++ linux-2.6.16/arch/powerpc/kernel/systbl.S +@@ -296,7 +296,7 @@ COMPAT_SYS(fstatfs64) + SYSX(sys_ni_syscall, ppc_fadvise64_64, ppc_fadvise64_64) + PPC_SYS(rtas) + OLDSYS(debug_setcontext) +-SYSCALL(ni_syscall) ++SYSX(sys_vserver, sys32_vserver, sys_vserver) + SYSCALL(ni_syscall) + COMPAT_SYS(mbind) + COMPAT_SYS(get_mempolicy) +Index: linux-2.6.16/arch/powerpc/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/traps.c ++++ linux-2.6.16/arch/powerpc/kernel/traps.c +@@ -878,8 +878,9 @@ void nonrecoverable_exception(struct pt_ + + void trace_syscall(struct pt_regs *regs) + { +- printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n", +- current, current->pid, regs->nip, regs->link, regs->gpr[0], ++ printk("Task: %p(%d[#%u]), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n", ++ current, current->pid, current->xid, ++ regs->nip, regs->link, regs->gpr[0], + regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted()); + } + +Index: linux-2.6.16/arch/powerpc/kernel/vdso.c +=================================================================== +--- linux-2.6.16.orig/arch/powerpc/kernel/vdso.c ++++ linux-2.6.16/arch/powerpc/kernel/vdso.c +@@ -25,6 +25,7 @@ + #include <linux/elf.h> + #include <linux/security.h> + #include <linux/bootmem.h> ++#include <linux/vs_memory.h> + + #include <asm/pgtable.h> + #include <asm/system.h> +@@ -294,7 +295,7 @@ int arch_setup_additional_pages(struct l + kmem_cache_free(vm_area_cachep, vma); + return -ENOMEM; + } +- mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; ++ vx_vmpages_add(mm, (vma->vm_end - vma->vm_start) >> PAGE_SHIFT); + up_write(&mm->mmap_sem); + + return 0; +Index: linux-2.6.16/arch/ppc/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/ppc/Kconfig ++++ linux-2.6.16/arch/ppc/Kconfig +@@ -1394,6 +1394,8 @@ source "arch/powerpc/oprofile/Kconfig" + + source "arch/ppc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/ppc/kernel/asm-offsets.c +=================================================================== +--- linux-2.6.16.orig/arch/ppc/kernel/asm-offsets.c ++++ linux-2.6.16/arch/ppc/kernel/asm-offsets.c +@@ -122,6 +122,7 @@ main(void) + DEFINE(TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap)); + DEFINE(CLONE_VM, CLONE_VM); + DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); ++ DEFINE(CLONE_KTHREAD, CLONE_KTHREAD); + DEFINE(MM_PGD, offsetof(struct mm_struct, pgd)); + + /* About the CPU features table */ +Index: linux-2.6.16/arch/ppc/kernel/misc.S +=================================================================== +--- linux-2.6.16.orig/arch/ppc/kernel/misc.S ++++ linux-2.6.16/arch/ppc/kernel/misc.S +@@ -1011,7 +1011,7 @@ _GLOBAL(kernel_thread) + mr r30,r3 /* function */ + mr r31,r4 /* argument */ + ori r3,r5,CLONE_VM /* flags */ +- oris r3,r3,CLONE_UNTRACED>>16 ++ oris r3,r3,(CLONE_UNTRACED|CLONE_KTHREAD)>>16 + li r4,0 /* new sp (unused) */ + li r0,__NR_clone + sc +Index: linux-2.6.16/arch/ppc/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/ppc/kernel/traps.c ++++ linux-2.6.16/arch/ppc/kernel/traps.c +@@ -749,8 +749,9 @@ void nonrecoverable_exception(struct pt_ + + void trace_syscall(struct pt_regs *regs) + { +- printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n", +- current, current->pid, regs->nip, regs->link, regs->gpr[0], ++ printk("Task: %p(%d[#%u]), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n", ++ current, current->pid, current->xid, ++ regs->nip, regs->link, regs->gpr[0], + regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted()); + } + +Index: linux-2.6.16/arch/s390/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/s390/Kconfig ++++ linux-2.6.16/arch/s390/Kconfig +@@ -472,6 +472,8 @@ source "arch/s390/oprofile/Kconfig" + + source "arch/s390/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/s390/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/s390/kernel/process.c ++++ linux-2.6.16/arch/s390/kernel/process.c +@@ -164,9 +164,9 @@ void show_regs(struct pt_regs *regs) + struct task_struct *tsk = current; + + printk("CPU: %d %s\n", task_thread_info(tsk)->cpu, print_tainted()); +- printk("Process %s (pid: %d, task: %p, ksp: %p)\n", +- current->comm, current->pid, (void *) tsk, +- (void *) tsk->thread.ksp); ++ printk("Process %s (pid: %d[#%u], task: %p, ksp: %p)\n", ++ current->comm, current->pid, current->xid, ++ (void *) tsk, (void *) tsk->thread.ksp); + + show_registers(regs); + /* Show stack backtrace if pt_regs is from kernel mode */ +@@ -196,7 +196,7 @@ int kernel_thread(int (*fn)(void *), voi + regs.orig_gpr2 = -1; + + /* Ok, create the new process.. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, + 0, ®s, 0, NULL, NULL); + } + +Index: linux-2.6.16/arch/s390/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/s390/kernel/ptrace.c ++++ linux-2.6.16/arch/s390/kernel/ptrace.c +@@ -723,7 +723,13 @@ sys_ptrace(long request, long pid, long + goto out; + } + ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) { ++ ret = -EPERM; ++ goto out_tsk; ++ } ++ + ret = do_ptrace(child, request, addr, data); ++out_tsk: + put_task_struct(child); + out: + unlock_kernel(); +Index: linux-2.6.16/arch/s390/kernel/syscalls.S +=================================================================== +--- linux-2.6.16.orig/arch/s390/kernel/syscalls.S ++++ linux-2.6.16/arch/s390/kernel/syscalls.S +@@ -271,7 +271,7 @@ SYSCALL(sys_clock_settime,sys_clock_sett + SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper) /* 260 */ + SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper) + SYSCALL(sys_clock_nanosleep,sys_clock_nanosleep,sys32_clock_nanosleep_wrapper) +-NI_SYSCALL /* reserved for vserver */ ++SYSCALL(sys_vserver,sys_vserver,sys32_vserver) + SYSCALL(s390_fadvise64_64,sys_ni_syscall,sys32_fadvise64_64_wrapper) + SYSCALL(sys_statfs64,sys_statfs64,compat_sys_statfs64_wrapper) + SYSCALL(sys_fstatfs64,sys_fstatfs64,compat_sys_fstatfs64_wrapper) +Index: linux-2.6.16/arch/sh/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/sh/Kconfig ++++ linux-2.6.16/arch/sh/Kconfig +@@ -633,6 +633,8 @@ source "arch/sh/oprofile/Kconfig" + + source "arch/sh/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/sh/kernel/kgdb_stub.c +=================================================================== +--- linux-2.6.16.orig/arch/sh/kernel/kgdb_stub.c ++++ linux-2.6.16/arch/sh/kernel/kgdb_stub.c +@@ -412,7 +412,7 @@ static struct task_struct *get_thread(in + if (pid == PID_MAX) pid = 0; + + /* First check via PID */ +- thread = find_task_by_pid(pid); ++ thread = find_task_by_real_pid(pid); + + if (thread) + return thread; +Index: linux-2.6.16/arch/sh/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/sh/kernel/process.c ++++ linux-2.6.16/arch/sh/kernel/process.c +@@ -113,7 +113,8 @@ void machine_power_off(void) + void show_regs(struct pt_regs * regs) + { + printk("\n"); +- printk("Pid : %d, Comm: %20s\n", current->pid, current->comm); ++ printk("Pid : %d[#%u], Comm: %20s\n", ++ current->pid, current->xid, current->comm); + print_symbol("PC is at %s\n", regs->pc); + printk("PC : %08lx SP : %08lx SR : %08lx ", + regs->pc, regs->regs[15], regs->sr); +@@ -181,7 +182,8 @@ int kernel_thread(int (*fn)(void *), voi + regs.sr = (1 << 30); + + /* Ok, create the new process.. */ +- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); ++ return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, ++ 0, ®s, 0, NULL, NULL); + } + + /* +Index: linux-2.6.16/arch/sh64/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/sh64/kernel/process.c ++++ linux-2.6.16/arch/sh64/kernel/process.c +@@ -637,7 +637,7 @@ int kernel_thread(int (*fn)(void *), voi + static __inline__ _syscall2(int,clone,unsigned long,flags,unsigned long,newsp) + static __inline__ _syscall1(int,exit,int,ret) + +- reply = clone(flags | CLONE_VM, 0); ++ reply = clone(flags | CLONE_VM | CLONE_KTHREAD, 0); + if (!reply) { + /* Child */ + reply = exit(fn(arg)); +Index: linux-2.6.16/arch/sparc/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/sparc/Kconfig ++++ linux-2.6.16/arch/sparc/Kconfig +@@ -284,6 +284,8 @@ source "fs/Kconfig" + + source "arch/sparc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/sparc/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc/kernel/process.c ++++ linux-2.6.16/arch/sparc/kernel/process.c +@@ -706,7 +706,8 @@ pid_t kernel_thread(int (*fn)(void *), v + /* Notreached by child. */ + "1: mov %%o0, %0\n\t" : + "=r" (retval) : +- "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED), ++ "i" (__NR_clone), "r" (flags | ++ CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD), + "i" (__NR_exit), "r" (fn), "r" (arg) : + "g1", "g2", "g3", "o0", "o1", "memory", "cc"); + return retval; +Index: linux-2.6.16/arch/sparc/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc/kernel/ptrace.c ++++ linux-2.6.16/arch/sparc/kernel/ptrace.c +@@ -19,6 +19,7 @@ + #include <linux/smp_lock.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_pid.h> + + #include <asm/pgtable.h> + #include <asm/system.h> +@@ -299,6 +300,10 @@ asmlinkage void do_ptrace(struct pt_regs + pt_error_return(regs, -ret); + goto out; + } ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) { ++ pt_error_return(regs, ESRCH); ++ goto out_tsk; ++ } + + if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH) + || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) { +Index: linux-2.6.16/arch/sparc/kernel/sys_sparc.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc/kernel/sys_sparc.c ++++ linux-2.6.16/arch/sparc/kernel/sys_sparc.c +@@ -21,6 +21,7 @@ + #include <linux/utsname.h> + #include <linux/smp.h> + #include <linux/smp_lock.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -470,13 +471,13 @@ asmlinkage int sys_getdomainname(char __ + + down_read(&uts_sem); + +- nlen = strlen(system_utsname.domainname) + 1; ++ nlen = strlen(vx_new_uts(domainname)) + 1; + + if (nlen < len) + len = nlen; + if (len > __NEW_UTS_LEN) + goto done; +- if (copy_to_user(name, system_utsname.domainname, len)) ++ if (copy_to_user(name, vx_new_uts(domainname), len)) + goto done; + err = 0; + done: +Index: linux-2.6.16/arch/sparc/kernel/systbls.S +=================================================================== +--- linux-2.6.16.orig/arch/sparc/kernel/systbls.S ++++ linux-2.6.16/arch/sparc/kernel/systbls.S +@@ -72,7 +72,7 @@ sys_call_table: + /*250*/ .long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl + /*255*/ .long sys_nis_syscall, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep + /*260*/ .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun +-/*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy ++/*265*/ .long sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy + /*270*/ .long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink + /*275*/ .long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid + /*280*/ .long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat +Index: linux-2.6.16/arch/sparc/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc/kernel/traps.c ++++ linux-2.6.16/arch/sparc/kernel/traps.c +@@ -100,7 +100,8 @@ void die_if_kernel(char *str, struct pt_ + " /_| \\__/ |_\\\n" + " \\__U_/\n"); + +- printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter); ++ printk("%s(%d[#%u]): %s [#%d]\n", current->comm, ++ current->pid, current->xid, str, ++die_counter); + show_regs(regs); + + __SAVE; __SAVE; __SAVE; __SAVE; +Index: linux-2.6.16/arch/sparc64/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/Kconfig ++++ linux-2.6.16/arch/sparc64/Kconfig +@@ -394,6 +394,8 @@ endmenu + + source "arch/sparc64/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/sparc64/kernel/binfmt_aout32.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/kernel/binfmt_aout32.c ++++ linux-2.6.16/arch/sparc64/kernel/binfmt_aout32.c +@@ -27,6 +27,7 @@ + #include <linux/binfmts.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: linux-2.6.16/arch/sparc64/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/kernel/process.c ++++ linux-2.6.16/arch/sparc64/kernel/process.c +@@ -717,7 +717,8 @@ pid_t kernel_thread(int (*fn)(void *), v + /* Notreached by child. */ + "1:" : + "=r" (retval) : +- "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED), ++ "i" (__NR_clone), "r" (flags | ++ CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD), + "i" (__NR_exit), "r" (fn), "r" (arg) : + "g1", "g2", "g3", "o0", "o1", "memory", "cc"); + return retval; +Index: linux-2.6.16/arch/sparc64/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/kernel/ptrace.c ++++ linux-2.6.16/arch/sparc64/kernel/ptrace.c +@@ -22,6 +22,7 @@ + #include <linux/seccomp.h> + #include <linux/audit.h> + #include <linux/signal.h> ++#include <linux/vs_pid.h> + + #include <asm/asi.h> + #include <asm/pgtable.h> +@@ -209,6 +210,10 @@ asmlinkage void do_ptrace(struct pt_regs + pt_error_return(regs, -ret); + goto out; + } ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) { ++ pt_error_return(regs, ESRCH); ++ goto out_tsk; ++ } + + if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH) + || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) { +Index: linux-2.6.16/arch/sparc64/kernel/sys_sparc.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/kernel/sys_sparc.c ++++ linux-2.6.16/arch/sparc64/kernel/sys_sparc.c +@@ -25,6 +25,7 @@ + #include <linux/syscalls.h> + #include <linux/ipc.h> + #include <linux/personality.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -476,13 +477,13 @@ asmlinkage long sys_getdomainname(char _ + + down_read(&uts_sem); + +- nlen = strlen(system_utsname.domainname) + 1; ++ nlen = strlen(vx_new_uts(domainname)) + 1; + + if (nlen < len) + len = nlen; + if (len > __NEW_UTS_LEN) + goto done; +- if (copy_to_user(name, system_utsname.domainname, len)) ++ if (copy_to_user(name, vx_new_uts(domainname), len)) + goto done; + err = 0; + done: +Index: linux-2.6.16/arch/sparc64/kernel/systbls.S +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/kernel/systbls.S ++++ linux-2.6.16/arch/sparc64/kernel/systbls.S +@@ -73,7 +73,7 @@ sys_call_table32: + /*250*/ .word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl + .word sys_ni_syscall, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep + /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun +- .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy ++ .word sys_timer_delete, compat_sys_timer_create, sys32_vserver, compat_sys_io_setup, sys_io_destroy + /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink + .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid + /*280*/ .word sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat +@@ -142,7 +142,7 @@ sys_call_table: + /*250*/ .word sys64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl + .word sys_ni_syscall, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep + /*260*/ .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun +- .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy ++ .word sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy + /*270*/ .word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink + .word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid + /*280*/ .word sys_nis_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat +Index: linux-2.6.16/arch/sparc64/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/kernel/traps.c ++++ linux-2.6.16/arch/sparc64/kernel/traps.c +@@ -1896,7 +1896,8 @@ void die_if_kernel(char *str, struct pt_ + " /_| \\__/ |_\\\n" + " \\__U_/\n"); + +- printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter); ++ printk("%s(%d[#%u]): %s [#%d]\n", current->comm, ++ current->pid, current->xid, str, ++die_counter); + notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); + __asm__ __volatile__("flushw"); + __show_regs(regs); +Index: linux-2.6.16/arch/sparc64/solaris/fs.c +=================================================================== +--- linux-2.6.16.orig/arch/sparc64/solaris/fs.c ++++ linux-2.6.16/arch/sparc64/solaris/fs.c +@@ -363,7 +363,7 @@ static int report_statvfs(struct vfsmoun + int j = strlen (p); + + if (j > 15) j = 15; +- if (IS_RDONLY(inode)) i = 1; ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) i = 1; + if (mnt->mnt_flags & MNT_NOSUID) i |= 2; + if (!sysv_valid_dev(inode->i_sb->s_dev)) + return -EOVERFLOW; +@@ -399,7 +399,7 @@ static int report_statvfs64(struct vfsmo + int j = strlen (p); + + if (j > 15) j = 15; +- if (IS_RDONLY(inode)) i = 1; ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) i = 1; + if (mnt->mnt_flags & MNT_NOSUID) i |= 2; + if (!sysv_valid_dev(inode->i_sb->s_dev)) + return -EOVERFLOW; +Index: linux-2.6.16/arch/um/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/um/Kconfig ++++ linux-2.6.16/arch/um/Kconfig +@@ -290,6 +290,8 @@ source "drivers/connector/Kconfig" + + source "fs/Kconfig" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/um/drivers/mconsole_kern.c +=================================================================== +--- linux-2.6.16.orig/arch/um/drivers/mconsole_kern.c ++++ linux-2.6.16/arch/um/drivers/mconsole_kern.c +@@ -21,6 +21,7 @@ + #include "linux/proc_fs.h" + #include "linux/syscalls.h" + #include "linux/console.h" ++#include "linux/vs_pid.h" + #include "asm/irq.h" + #include "asm/uaccess.h" + #include "user_util.h" +Index: linux-2.6.16/arch/um/kernel/process_kern.c +=================================================================== +--- linux-2.6.16.orig/arch/um/kernel/process_kern.c ++++ linux-2.6.16/arch/um/kernel/process_kern.c +@@ -23,6 +23,8 @@ + #include "linux/proc_fs.h" + #include "linux/ptrace.h" + #include "linux/random.h" ++#include "linux/vs_pid.h" ++ + #include "asm/unistd.h" + #include "asm/mman.h" + #include "asm/segment.h" +@@ -95,7 +97,7 @@ int kernel_thread(int (*fn)(void *), voi + + current->thread.request.u.thread.proc = fn; + current->thread.request.u.thread.arg = arg; +- pid = do_fork(CLONE_VM | CLONE_UNTRACED | flags, 0, ++ pid = do_fork(CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD | flags, 0, + ¤t->thread.regs, 0, NULL, NULL); + if(pid < 0) + panic("do_fork failed in kernel_thread, errno = %d", pid); +Index: linux-2.6.16/arch/um/kernel/syscall_kern.c +=================================================================== +--- linux-2.6.16.orig/arch/um/kernel/syscall_kern.c ++++ linux-2.6.16/arch/um/kernel/syscall_kern.c +@@ -15,6 +15,8 @@ + #include "linux/unistd.h" + #include "linux/slab.h" + #include "linux/utime.h" ++#include <linux/vs_cvirt.h> ++ + #include "asm/mman.h" + #include "asm/uaccess.h" + #include "kern_util.h" +@@ -110,7 +112,7 @@ long sys_uname(struct old_utsname * name + if (!name) + return -EFAULT; + down_read(&uts_sem); +- err=copy_to_user(name, &system_utsname, sizeof (*name)); ++ err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + return err?-EFAULT:0; + } +@@ -118,6 +120,7 @@ long sys_uname(struct old_utsname * name + long sys_olduname(struct oldold_utsname * name) + { + long error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; +@@ -126,19 +129,20 @@ long sys_olduname(struct oldold_utsname + + down_read(&uts_sem); + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname, ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname, + __OLD_UTS_LEN); + error |= __put_user(0,name->sysname+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename,&system_utsname.nodename, ++ error |= __copy_to_user(&name->nodename,ptr->nodename, + __OLD_UTS_LEN); + error |= __put_user(0,name->nodename+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->release,&system_utsname.release, ++ error |= __copy_to_user(&name->release,ptr->release, + __OLD_UTS_LEN); + error |= __put_user(0,name->release+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->version,&system_utsname.version, ++ error |= __copy_to_user(&name->version,ptr->version, + __OLD_UTS_LEN); + error |= __put_user(0,name->version+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine,&system_utsname.machine, ++ error |= __copy_to_user(&name->machine,ptr->machine, + __OLD_UTS_LEN); + error |= __put_user(0,name->machine+__OLD_UTS_LEN); + +Index: linux-2.6.16/arch/v850/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/v850/Kconfig ++++ linux-2.6.16/arch/v850/Kconfig +@@ -320,6 +320,8 @@ source "drivers/usb/Kconfig" + + source "arch/v850/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/v850/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/v850/kernel/process.c ++++ linux-2.6.16/arch/v850/kernel/process.c +@@ -84,7 +84,7 @@ int kernel_thread (int (*fn)(void *), vo + /* Clone this thread. Note that we don't pass the clone syscall's + second argument -- it's ignored for calls from kernel mode (the + child's SP is always set to the top of the kernel stack). */ +- arg0 = flags | CLONE_VM; ++ arg0 = flags | CLONE_VM | CLONE_KTHREAD; + syscall = __NR_clone; + asm volatile ("trap " SYSCALL_SHORT_TRAP + : "=r" (ret), "=r" (syscall) +Index: linux-2.6.16/arch/v850/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/arch/v850/kernel/ptrace.c ++++ linux-2.6.16/arch/v850/kernel/ptrace.c +@@ -137,6 +137,8 @@ long arch_ptrace(struct task_struct *chi + break; + rval = -EIO; + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + /* Read/write the word at location ADDR in the registers. */ + case PTRACE_PEEKUSR: +Index: linux-2.6.16/arch/x86_64/Kconfig +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/Kconfig ++++ linux-2.6.16/arch/x86_64/Kconfig +@@ -588,6 +588,8 @@ endmenu + + source "arch/x86_64/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: linux-2.6.16/arch/x86_64/ia32/ia32_aout.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/ia32/ia32_aout.c ++++ linux-2.6.16/arch/x86_64/ia32/ia32_aout.c +@@ -25,6 +25,7 @@ + #include <linux/binfmts.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: linux-2.6.16/arch/x86_64/ia32/ia32_binfmt.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/ia32/ia32_binfmt.c ++++ linux-2.6.16/arch/x86_64/ia32/ia32_binfmt.c +@@ -371,7 +371,8 @@ int ia32_setup_arg_pages(struct linux_bi + kmem_cache_free(vm_area_cachep, mpnt); + return ret; + } +- mm->stack_vm = mm->total_vm = vma_pages(mpnt); ++ vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt)); ++ mm->stack_vm = mm->total_vm; + } + + for (i = 0 ; i < MAX_ARG_PAGES ; i++) { +Index: linux-2.6.16/arch/x86_64/ia32/ia32entry.S +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/ia32/ia32entry.S ++++ linux-2.6.16/arch/x86_64/ia32/ia32entry.S +@@ -650,7 +650,7 @@ ia32_sys_call_table: + .quad sys_tgkill /* 270 */ + .quad compat_sys_utimes + .quad sys32_fadvise64_64 +- .quad quiet_ni_syscall /* sys_vserver */ ++ .quad sys32_vserver + .quad sys_mbind + .quad compat_sys_get_mempolicy /* 275 */ + .quad sys_set_mempolicy +Index: linux-2.6.16/arch/x86_64/ia32/ptrace32.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/ia32/ptrace32.c ++++ linux-2.6.16/arch/x86_64/ia32/ptrace32.c +@@ -18,6 +18,7 @@ + #include <linux/unistd.h> + #include <linux/mm.h> + #include <linux/ptrace.h> ++#include <linux/vs_pid.h> + #include <asm/ptrace.h> + #include <asm/compat.h> + #include <asm/uaccess.h> +Index: linux-2.6.16/arch/x86_64/ia32/sys_ia32.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/ia32/sys_ia32.c ++++ linux-2.6.16/arch/x86_64/ia32/sys_ia32.c +@@ -62,6 +62,7 @@ + #include <linux/highuid.h> + #include <linux/vmalloc.h> + #include <linux/fsnotify.h> ++#include <linux/vs_cvirt.h> + #include <asm/mman.h> + #include <asm/types.h> + #include <asm/uaccess.h> +@@ -882,6 +883,7 @@ asmlinkage long sys32_mmap2(unsigned lon + asmlinkage long sys32_olduname(struct oldold_utsname __user * name) + { + int error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; +@@ -890,13 +892,14 @@ asmlinkage long sys32_olduname(struct ol + + down_read(&uts_sem); + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); + __put_user(0,name->sysname+__OLD_UTS_LEN); +- __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); ++ __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); + __put_user(0,name->nodename+__OLD_UTS_LEN); +- __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); ++ __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); + __put_user(0,name->release+__OLD_UTS_LEN); +- __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); ++ __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); + __put_user(0,name->version+__OLD_UTS_LEN); + { + char *arch = "x86_64"; +@@ -919,7 +922,7 @@ long sys32_uname(struct old_utsname __us + if (!name) + return -EFAULT; + down_read(&uts_sem); +- err=copy_to_user(name, &system_utsname, sizeof (*name)); ++ err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + if (personality(current->personality) == PER_LINUX32) + err |= copy_to_user(&name->machine, "i686", 5); +Index: linux-2.6.16/arch/x86_64/ia32/syscall32.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/ia32/syscall32.c ++++ linux-2.6.16/arch/x86_64/ia32/syscall32.c +@@ -10,6 +10,7 @@ + #include <linux/init.h> + #include <linux/stringify.h> + #include <linux/security.h> ++#include <linux/vs_memory.h> + #include <asm/proto.h> + #include <asm/tlbflush.h> + #include <asm/ia32_unistd.h> +@@ -70,7 +71,7 @@ int syscall32_setup_pages(struct linux_b + kmem_cache_free(vm_area_cachep, vma); + return ret; + } +- mm->total_vm += npages; ++ vx_vmpages_add(mm, npages); + up_write(&mm->mmap_sem); + return 0; + } +Index: linux-2.6.16/arch/x86_64/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/kernel/process.c ++++ linux-2.6.16/arch/x86_64/kernel/process.c +@@ -55,7 +55,8 @@ + + asmlinkage extern void ret_from_fork(void); + +-unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED; ++unsigned long kernel_thread_flags = ++ CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD; + + unsigned long boot_option_idle_override = 0; + EXPORT_SYMBOL(boot_option_idle_override); +@@ -297,8 +298,8 @@ void __show_regs(struct pt_regs * regs) + + printk("\n"); + print_modules(); +- printk("Pid: %d, comm: %.20s %s %s %.*s\n", +- current->pid, current->comm, print_tainted(), ++ printk("Pid: %d[#%u], comm: %.20s %s %s %.*s\n", ++ current->pid, current->xid, current->comm, print_tainted(), + system_utsname.release, + (int)strcspn(system_utsname.version, " "), + system_utsname.version); +Index: linux-2.6.16/arch/x86_64/kernel/sys_x86_64.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/kernel/sys_x86_64.c ++++ linux-2.6.16/arch/x86_64/kernel/sys_x86_64.c +@@ -16,6 +16,7 @@ + #include <linux/file.h> + #include <linux/utsname.h> + #include <linux/personality.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ia32.h> +@@ -148,7 +149,7 @@ asmlinkage long sys_uname(struct new_uts + { + int err; + down_read(&uts_sem); +- err = copy_to_user(name, &system_utsname, sizeof (*name)); ++ err = copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + if (personality(current->personality) == PER_LINUX32) + err |= copy_to_user(&name->machine, "i686", 5); +Index: linux-2.6.16/arch/x86_64/kernel/traps.c +=================================================================== +--- linux-2.6.16.orig/arch/x86_64/kernel/traps.c ++++ linux-2.6.16/arch/x86_64/kernel/traps.c +@@ -321,8 +321,9 @@ void show_registers(struct pt_regs *regs + + printk("CPU %d ", cpu); + __show_regs(regs); +- printk("Process %s (pid: %d, threadinfo %p, task %p)\n", +- cur->comm, cur->pid, task_thread_info(cur), cur); ++ printk("Process %s (pid: %d[#%u], threadinfo %p, task %p)\n", ++ cur->comm, cur->pid, cur->xid, ++ task_thread_info(cur), cur); + + /* + * When in-kernel, we also print out the stack and code at the +Index: linux-2.6.16/arch/xtensa/kernel/process.c +=================================================================== +--- linux-2.6.16.orig/arch/xtensa/kernel/process.c ++++ linux-2.6.16/arch/xtensa/kernel/process.c +@@ -207,7 +207,7 @@ int kernel_thread(int (*fn)(void *), voi + :"=r" (retval) + :"i" (__NR_clone), "i" (__NR_exit), + "r" (arg), "r" (fn), +- "r" (flags | CLONE_VM) ++ "r" (flags | CLONE_VM | CLONE_KTHREAD) + : "a2", "a3", "a4", "a5", "a6" ); + return retval; + } +Index: linux-2.6.16/drivers/block/Kconfig +=================================================================== +--- linux-2.6.16.orig/drivers/block/Kconfig ++++ linux-2.6.16/drivers/block/Kconfig +@@ -315,6 +315,13 @@ config BLK_DEV_CRYPTOLOOP + instead, which can be configured to be on-disk compatible with the + cryptoloop device. + ++config BLK_DEV_VROOT ++ tristate "Virtual Root device support" ++ depends on QUOTACTL ++ ---help--- ++ Saying Y here will allow you to use quota/fs ioctls on a shared ++ partition within a virtual server without compromising security. ++ + config BLK_DEV_NBD + tristate "Network block device support" + depends on NET +Index: linux-2.6.16/drivers/block/Makefile +=================================================================== +--- linux-2.6.16.orig/drivers/block/Makefile ++++ linux-2.6.16/drivers/block/Makefile +@@ -30,4 +30,5 @@ obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryp + obj-$(CONFIG_VIODASD) += viodasd.o + obj-$(CONFIG_BLK_DEV_SX8) += sx8.o + obj-$(CONFIG_BLK_DEV_UB) += ub.o ++obj-$(CONFIG_BLK_DEV_VROOT) += vroot.o + +Index: linux-2.6.16/drivers/block/vroot.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/drivers/block/vroot.c +@@ -0,0 +1,289 @@ ++/* ++ * linux/drivers/block/vroot.c ++ * ++ * written by Herbert Pötzl, 9/11/2002 ++ * ported to 2.6.10 by Herbert Pötzl, 30/12/2004 ++ * ++ * based on the loop.c code by Theodore Ts'o. ++ * ++ * Copyright (C) 2002-2005 by Herbert Pötzl. ++ * Redistribution of this file is permitted under the ++ * GNU General Public License. ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/file.h> ++#include <linux/major.h> ++#include <linux/blkdev.h> ++#include <linux/devfs_fs_kernel.h> ++ ++#include <linux/vroot.h> ++#include <linux/vserver/debug.h> ++ ++ ++static int max_vroot = 8; ++ ++static struct vroot_device *vroot_dev; ++static struct gendisk **disks; ++ ++ ++static int vroot_set_dev( ++ struct vroot_device *vr, ++ struct file *vr_file, ++ struct block_device *bdev, ++ unsigned int arg) ++{ ++ struct block_device *real_bdev; ++ struct file *file; ++ struct inode *inode; ++ int error; ++ ++ error = -EBUSY; ++ if (vr->vr_state != Vr_unbound) ++ goto out; ++ ++ error = -EBADF; ++ file = fget(arg); ++ if (!file) ++ goto out; ++ ++ error = -EINVAL; ++ inode = file->f_dentry->d_inode; ++ ++ ++ if (S_ISBLK(inode->i_mode)) { ++ real_bdev = inode->i_bdev; ++ vr->vr_device = real_bdev; ++ __iget(real_bdev->bd_inode); ++ } else ++ goto out_fput; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot[%d]_set_dev: dev=" VXF_DEV, ++ vr->vr_number, VXD_DEV(real_bdev)); ++ ++ vr->vr_state = Vr_bound; ++ error = 0; ++ ++ out_fput: ++ fput(file); ++ out: ++ return error; ++} ++ ++static int vroot_clr_dev( ++ struct vroot_device *vr, ++ struct file *vr_file, ++ struct block_device *bdev) ++{ ++ struct block_device *real_bdev; ++ ++ if (vr->vr_state != Vr_bound) ++ return -ENXIO; ++ if (vr->vr_refcnt > 1) /* we needed one fd for the ioctl */ ++ return -EBUSY; ++ ++ real_bdev = vr->vr_device; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot[%d]_clr_dev: dev=" VXF_DEV, ++ vr->vr_number, VXD_DEV(real_bdev)); ++ ++ bdput(real_bdev); ++ vr->vr_state = Vr_unbound; ++ vr->vr_device = NULL; ++ return 0; ++} ++ ++ ++static int vr_ioctl(struct inode * inode, struct file * file, ++ unsigned int cmd, unsigned long arg) ++{ ++ struct vroot_device *vr = inode->i_bdev->bd_disk->private_data; ++ int err; ++ ++ down(&vr->vr_ctl_mutex); ++ switch (cmd) { ++ case VROOT_SET_DEV: ++ err = vroot_set_dev(vr, file, inode->i_bdev, arg); ++ break; ++ case VROOT_CLR_DEV: ++ err = vroot_clr_dev(vr, file, inode->i_bdev); ++ break; ++ default: ++ err = -EINVAL; ++ break; ++ } ++ up(&vr->vr_ctl_mutex); ++ return err; ++} ++ ++static int vr_open(struct inode *inode, struct file *file) ++{ ++ struct vroot_device *vr = inode->i_bdev->bd_disk->private_data; ++ ++ down(&vr->vr_ctl_mutex); ++ vr->vr_refcnt++; ++ up(&vr->vr_ctl_mutex); ++ return 0; ++} ++ ++static int vr_release(struct inode *inode, struct file *file) ++{ ++ struct vroot_device *vr = inode->i_bdev->bd_disk->private_data; ++ ++ down(&vr->vr_ctl_mutex); ++ --vr->vr_refcnt; ++ up(&vr->vr_ctl_mutex); ++ return 0; ++} ++ ++static struct block_device_operations vr_fops = { ++ .owner = THIS_MODULE, ++ .open = vr_open, ++ .release = vr_release, ++ .ioctl = vr_ioctl, ++}; ++ ++struct block_device *__vroot_get_real_bdev(struct block_device *bdev) ++{ ++ struct inode *inode = bdev->bd_inode; ++ struct vroot_device *vr; ++ struct block_device *real_bdev; ++ int minor = iminor(inode); ++ ++ vr = &vroot_dev[minor]; ++ real_bdev = vr->vr_device; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot[%d]_get_real_bdev: dev=" VXF_DEV, ++ vr->vr_number, VXD_DEV(real_bdev)); ++ ++ if (vr->vr_state != Vr_bound) ++ return ERR_PTR(-ENXIO); ++ ++ __iget(real_bdev->bd_inode); ++ return real_bdev; ++} ++ ++/* ++ * And now the modules code and kernel interface. ++ */ ++ ++module_param(max_vroot, int, 0); ++ ++MODULE_PARM_DESC(max_vroot, "Maximum number of vroot devices (1-256)"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS_BLOCKDEV_MAJOR(VROOT_MAJOR); ++ ++MODULE_AUTHOR ("Herbert Pötzl"); ++MODULE_DESCRIPTION ("Virtual Root Device Mapper"); ++ ++ ++int __init vroot_init(void) ++{ ++ int err, i; ++ ++ if (max_vroot < 1 || max_vroot > 256) { ++ max_vroot = MAX_VROOT_DEFAULT; ++ printk(KERN_WARNING "vroot: invalid max_vroot " ++ "(must be between 1 and 256), " ++ "using default (%d)\n", max_vroot); ++ } ++ ++ if (register_blkdev(VROOT_MAJOR, "vroot")) ++ return -EIO; ++ ++ err = -ENOMEM; ++ vroot_dev = kmalloc(max_vroot * sizeof(struct vroot_device), GFP_KERNEL); ++ if (!vroot_dev) ++ goto out_mem1; ++ memset(vroot_dev, 0, max_vroot * sizeof(struct vroot_device)); ++ ++ disks = kmalloc(max_vroot * sizeof(struct gendisk *), GFP_KERNEL); ++ if (!disks) ++ goto out_mem2; ++ ++ for (i = 0; i < max_vroot; i++) { ++ disks[i] = alloc_disk(1); ++ if (!disks[i]) ++ goto out_mem3; ++ } ++ ++ devfs_mk_dir("vroot"); ++ ++ for (i = 0; i < max_vroot; i++) { ++ struct vroot_device *vr = &vroot_dev[i]; ++ struct gendisk *disk = disks[i]; ++ ++ memset(vr, 0, sizeof(*vr)); ++ init_MUTEX(&vr->vr_ctl_mutex); ++ vr->vr_number = i; ++ disk->major = VROOT_MAJOR; ++ disk->first_minor = i; ++ disk->fops = &vr_fops; ++ sprintf(disk->disk_name, "vroot%d", i); ++ sprintf(disk->devfs_name, "vroot/%d", i); ++ disk->private_data = vr; ++ } ++ ++ err = register_vroot_grb(&__vroot_get_real_bdev); ++ if (err) ++ goto out_reg; ++ ++ for (i = 0; i < max_vroot; i++) ++ add_disk(disks[i]); ++ printk(KERN_INFO "vroot: loaded (max %d devices)\n", max_vroot); ++ return 0; ++ ++out_reg: ++ devfs_remove("vroot"); ++out_mem3: ++ while (i--) ++ put_disk(disks[i]); ++ kfree(disks); ++out_mem2: ++ kfree(vroot_dev); ++out_mem1: ++ unregister_blkdev(VROOT_MAJOR, "vroot"); ++ printk(KERN_ERR "vroot: ran out of memory\n"); ++ return err; ++} ++ ++void vroot_exit(void) ++{ ++ int i; ++ ++ if (unregister_vroot_grb(&__vroot_get_real_bdev)) ++ printk(KERN_WARNING "vroot: cannot unregister grb\n"); ++ ++ for (i = 0; i < max_vroot; i++) { ++ del_gendisk(disks[i]); ++ put_disk(disks[i]); ++ } ++ devfs_remove("vroot"); ++ if (unregister_blkdev(VROOT_MAJOR, "vroot")) ++ printk(KERN_WARNING "vroot: cannot unregister blkdev\n"); ++ ++ kfree(disks); ++ kfree(vroot_dev); ++} ++ ++module_init(vroot_init); ++module_exit(vroot_exit); ++ ++#ifndef MODULE ++ ++static int __init max_vroot_setup(char *str) ++{ ++ max_vroot = simple_strtol(str, NULL, 0); ++ return 1; ++} ++ ++__setup("max_vroot=", max_vroot_setup); ++ ++#endif ++ +Index: linux-2.6.16/drivers/char/random.c +=================================================================== +--- linux-2.6.16.orig/drivers/char/random.c ++++ linux-2.6.16/drivers/char/random.c +@@ -1174,7 +1174,7 @@ static char sysctl_bootid[16]; + static int proc_do_uuid(ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +- ctl_table fake_table; ++ ctl_table fake_table = {0}; + unsigned char buf[64], tmp_uuid[16], *uuid; + + uuid = table->data; +Index: linux-2.6.16/drivers/char/sysrq.c +=================================================================== +--- linux-2.6.16.orig/drivers/char/sysrq.c ++++ linux-2.6.16/drivers/char/sysrq.c +@@ -36,6 +36,7 @@ + #include <linux/vt_kern.h> + #include <linux/workqueue.h> + #include <linux/kexec.h> ++#include <linux/vserver/debug.h> + + #include <asm/ptrace.h> + +@@ -286,6 +287,21 @@ static struct sysrq_key_op sysrq_unrt_op + .enable_mask = SYSRQ_ENABLE_RTNICE, + }; + ++ ++#ifdef CONFIG_VSERVER_DEBUG ++static void sysrq_handle_vxinfo(int key, struct pt_regs *pt_regs, ++ struct tty_struct *tty) ++{ ++ dump_vx_info_inactive((key == 'x')?0:1); ++} ++static struct sysrq_key_op sysrq_showvxinfo_op = { ++ .handler = sysrq_handle_vxinfo, ++ .help_msg = "conteXt", ++ .action_msg = "Show Context Info", ++ .enable_mask = SYSRQ_ENABLE_DUMP, ++}; ++#endif ++ + /* Key Operations table and lock */ + static DEFINE_SPINLOCK(sysrq_key_table_lock); + #define SYSRQ_KEY_TABLE_LENGTH 36 +@@ -342,7 +358,11 @@ static struct sysrq_key_op *sysrq_key_ta + /* u */ &sysrq_mountro_op, + /* v */ NULL, /* May be assigned at init time by SMP VOYAGER */ + /* w */ NULL, ++#ifdef CONFIG_VSERVER_DEBUG ++/* x */ &sysrq_showvxinfo_op, ++#else + /* x */ NULL, ++#endif + /* y */ NULL, + /* z */ NULL + }; +@@ -354,6 +374,8 @@ static int sysrq_key_table_key2index(int + retval = key - '0'; + } else if ((key >= 'a') && (key <= 'z')) { + retval = key + 10 - 'a'; ++ } else if ((key >= 'A') && (key <= 'Z')) { ++ retval = key + 10 - 'A'; + } else { + retval = -1; + } +Index: linux-2.6.16/drivers/char/tty_io.c +=================================================================== +--- linux-2.6.16.orig/drivers/char/tty_io.c ++++ linux-2.6.16/drivers/char/tty_io.c +@@ -103,6 +103,7 @@ + #include <linux/vt_kern.h> + #include <linux/selection.h> + #include <linux/devfs_fs_kernel.h> ++#include <linux/vs_pid.h> + + #include <linux/kmod.h> + +@@ -2381,13 +2382,16 @@ static int tiocsctty(struct tty_struct * + + static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) + { ++ pid_t pgrp; + /* + * (tty == real_tty) is a cheap way of + * testing if the tty is NOT a master pty. + */ + if (tty == real_tty && current->signal->tty != real_tty) + return -ENOTTY; +- return put_user(real_tty->pgrp, p); ++ ++ pgrp = vx_map_pid(real_tty->pgrp); ++ return put_user(pgrp, p); + } + + static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) +@@ -2405,6 +2409,8 @@ static int tiocspgrp(struct tty_struct * + return -ENOTTY; + if (get_user(pgrp, p)) + return -EFAULT; ++ ++ pgrp = vx_rmap_pid(pgrp); + if (pgrp < 0) + return -EINVAL; + if (session_of_pgrp(pgrp) != current->signal->session) +Index: linux-2.6.16/drivers/infiniband/core/uverbs_mem.c +=================================================================== +--- linux-2.6.16.orig/drivers/infiniband/core/uverbs_mem.c ++++ linux-2.6.16/drivers/infiniband/core/uverbs_mem.c +@@ -36,6 +36,7 @@ + + #include <linux/mm.h> + #include <linux/dma-mapping.h> ++#include <linux/vs_memory.h> + + #include "uverbs.h" + +@@ -161,7 +162,7 @@ out: + if (ret < 0) + __ib_umem_release(dev, mem, 0); + else +- current->mm->locked_vm = locked; ++ vx_vmlocked_sub(current->mm, current->mm->locked_vm - locked); + + up_write(¤t->mm->mmap_sem); + free_page((unsigned long) page_list); +@@ -174,8 +175,8 @@ void ib_umem_release(struct ib_device *d + __ib_umem_release(dev, umem, 1); + + down_write(¤t->mm->mmap_sem); +- current->mm->locked_vm -= +- PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT; ++ vx_vmlocked_sub(current->mm, ++ PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT); + up_write(¤t->mm->mmap_sem); + } + +@@ -184,7 +185,7 @@ static void ib_umem_account(void *work_p + struct ib_umem_account_work *work = work_ptr; + + down_write(&work->mm->mmap_sem); +- work->mm->locked_vm -= work->diff; ++ vx_vmlocked_sub(work->mm, work->diff); + up_write(&work->mm->mmap_sem); + mmput(work->mm); + kfree(work); +Index: linux-2.6.16/drivers/mtd/devices/blkmtd.c +=================================================================== +--- linux-2.6.16.orig/drivers/mtd/devices/blkmtd.c ++++ linux-2.6.16/drivers/mtd/devices/blkmtd.c +@@ -614,7 +614,7 @@ static struct mtd_erase_region_info *cal + } + + +-extern dev_t __init name_to_dev_t(const char *line); ++extern dev_t __init name_to_dev_t(char *line); + + static struct blkmtd_dev *add_device(char *devname, int readonly, int erase_size) + { +Index: linux-2.6.16/fs/attr.c +=================================================================== +--- linux-2.6.16.orig/fs/attr.c ++++ linux-2.6.16/fs/attr.c +@@ -15,6 +15,9 @@ + #include <linux/fcntl.h> + #include <linux/quotaops.h> + #include <linux/security.h> ++#include <linux/proc_fs.h> ++#include <linux/devpts_fs.h> ++#include <linux/vserver/debug.h> + + /* Taken over from the old code... */ + +@@ -56,6 +59,30 @@ int inode_change_ok(struct inode *inode, + if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) + goto error; + } ++ ++ /* Check for evil vserver activity */ ++ if (vx_check(0, VX_ADMIN)) ++ goto fine; ++ ++ if (IS_BARRIER(inode)) { ++ vxwprintk(1, "xid=%d messing with the barrier.", ++ vx_current_xid()); ++ goto error; ++ } ++ switch (inode->i_sb->s_magic) { ++ case PROC_SUPER_MAGIC: ++ /* maybe allow that in the future? */ ++ vxwprintk(1, "xid=%d messing with the procfs.", ++ vx_current_xid()); ++ goto error; ++ case DEVPTS_SUPER_MAGIC: ++ /* devpts is xid tagged */ ++ if (vx_check((xid_t)inode->i_tag, VX_IDENT)) ++ goto fine; ++ vxwprintk(1, "xid=%d messing with the devpts.", ++ vx_current_xid()); ++ goto error; ++ } + fine: + retval = 0; + error: +@@ -79,6 +106,8 @@ int inode_setattr(struct inode * inode, + inode->i_uid = attr->ia_uid; + if (ia_valid & ATTR_GID) + inode->i_gid = attr->ia_gid; ++ if ((ia_valid & ATTR_TAG) && IS_TAGGED(inode)) ++ inode->i_tag = attr->ia_tag; + if (ia_valid & ATTR_ATIME) + inode->i_atime = timespec_trunc(attr->ia_atime, + inode->i_sb->s_time_gran); +@@ -153,7 +182,8 @@ int notify_change(struct dentry * dentry + error = security_inode_setattr(dentry, attr); + if (!error) { + if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || +- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) ++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) || ++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) + error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0; + if (!error) + error = inode_setattr(inode, attr); +Index: linux-2.6.16/fs/binfmt_aout.c +=================================================================== +--- linux-2.6.16.orig/fs/binfmt_aout.c ++++ linux-2.6.16/fs/binfmt_aout.c +@@ -24,6 +24,7 @@ + #include <linux/binfmts.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: linux-2.6.16/fs/binfmt_elf.c +=================================================================== +--- linux-2.6.16.orig/fs/binfmt_elf.c ++++ linux-2.6.16/fs/binfmt_elf.c +@@ -38,6 +38,7 @@ + #include <linux/security.h> + #include <linux/syscalls.h> + #include <linux/random.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/param.h> +Index: linux-2.6.16/fs/binfmt_flat.c +=================================================================== +--- linux-2.6.16.orig/fs/binfmt_flat.c ++++ linux-2.6.16/fs/binfmt_flat.c +@@ -36,6 +36,7 @@ + #include <linux/personality.h> + #include <linux/init.h> + #include <linux/flat.h> ++#include <linux/vs_memory.h> + + #include <asm/byteorder.h> + #include <asm/system.h> +Index: linux-2.6.16/fs/binfmt_som.c +=================================================================== +--- linux-2.6.16.orig/fs/binfmt_som.c ++++ linux-2.6.16/fs/binfmt_som.c +@@ -28,6 +28,7 @@ + #include <linux/shm.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/pgtable.h> +Index: linux-2.6.16/fs/buffer.c +=================================================================== +--- linux-2.6.16.orig/fs/buffer.c ++++ linux-2.6.16/fs/buffer.c +@@ -168,7 +168,7 @@ EXPORT_SYMBOL(sync_blockdev); + int fsync_super(struct super_block *sb) + { + sync_inodes_sb(sb, 0); +- DQUOT_SYNC(sb); ++ DQUOT_SYNC(sb->s_dqh); + lock_super(sb); + if (sb->s_dirt && sb->s_op->write_super) + sb->s_op->write_super(sb); +@@ -217,7 +217,7 @@ struct super_block *freeze_bdev(struct b + smp_wmb(); + + sync_inodes_sb(sb, 0); +- DQUOT_SYNC(sb); ++ DQUOT_SYNC(sb->s_dqh); + + lock_super(sb); + if (sb->s_dirt && sb->s_op->write_super) +Index: linux-2.6.16/fs/devpts/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/devpts/inode.c ++++ linux-2.6.16/fs/devpts/inode.c +@@ -19,7 +19,20 @@ + #include <linux/tty.h> + #include <linux/devpts_fs.h> + +-#define DEVPTS_SUPER_MAGIC 0x1cd1 ++ ++static int devpts_permission(struct inode *inode, int mask, struct nameidata *nd) ++{ ++ int ret = -EACCES; ++ ++ /* devpts is xid tagged */ ++ if (vx_check((xid_t)inode->i_tag, VX_IDENT)) ++ ret = generic_permission(inode, mask, NULL); ++ return ret; ++} ++ ++static struct inode_operations devpts_file_inode_operations = { ++ .permission = devpts_permission, ++}; + + static struct vfsmount *devpts_mnt; + static struct dentry *devpts_root; +@@ -69,6 +82,25 @@ static int devpts_remount(struct super_b + return 0; + } + ++static int devpts_filter(struct dentry *de) ++{ ++ /* devpts is xid tagged */ ++ return vx_check((xid_t)de->d_inode->i_tag, VX_IDENT); ++} ++ ++static int devpts_readdir(struct file * filp, void * dirent, filldir_t filldir) ++{ ++ return dcache_readdir_filter(filp, dirent, filldir, devpts_filter); ++} ++ ++static struct file_operations devpts_dir_operations = { ++ .open = dcache_dir_open, ++ .release = dcache_dir_close, ++ .llseek = dcache_dir_lseek, ++ .read = generic_read_dir, ++ .readdir = devpts_readdir, ++}; ++ + static struct super_operations devpts_sops = { + .statfs = simple_statfs, + .remount_fs = devpts_remount, +@@ -95,8 +127,10 @@ devpts_fill_super(struct super_block *s, + inode->i_uid = inode->i_gid = 0; + inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; + inode->i_op = &simple_dir_inode_operations; +- inode->i_fop = &simple_dir_operations; ++ inode->i_fop = &devpts_dir_operations; + inode->i_nlink = 2; ++ /* devpts is xid tagged */ ++ inode->i_tag = (tag_t)vx_current_xid(); + + devpts_root = s->s_root = d_alloc_root(inode); + if (s->s_root) +@@ -155,6 +189,9 @@ int devpts_pty_new(struct tty_struct *tt + inode->i_gid = config.setgid ? config.gid : current->fsgid; + inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; + init_special_inode(inode, S_IFCHR|config.mode, device); ++ /* devpts is xid tagged */ ++ inode->i_tag = (tag_t)vx_current_xid(); ++ inode->i_op = &devpts_file_inode_operations; + inode->u.generic_ip = tty; + + dentry = get_node(number); +Index: linux-2.6.16/fs/dquot.c +=================================================================== +--- linux-2.6.16.orig/fs/dquot.c ++++ linux-2.6.16/fs/dquot.c +@@ -79,6 +79,7 @@ + #include <linux/buffer_head.h> + #include <linux/capability.h> + #include <linux/quotaops.h> ++#include <linux/vserver/debug.h> + + #include <asm/uaccess.h> + +@@ -185,7 +186,7 @@ static void put_quota_format(struct quot + /* + * Dquot List Management: + * The quota code uses three lists for dquot management: the inuse_list, +- * free_dquots, and dquot_hash[] array. A single dquot structure may be ++ * free_dquots, and hash->dqh_hash[] array. A single dquot structure may be + * on all three lists, depending on its current state. + * + * All dquots are placed to the end of inuse_list when first created, and this +@@ -198,7 +199,7 @@ static void put_quota_format(struct quot + * dquot is invalidated it's completely released from memory. + * + * Dquots with a specific identity (device, type and id) are placed on +- * one of the dquot_hash[] hash chains. The provides an efficient search ++ * one of the hash->dqh_hash[] hash chains. The provides an efficient search + * mechanism to locate a specific dquot. + */ + +@@ -212,36 +213,44 @@ struct dqstats dqstats; + static void dqput(struct dquot *dquot); + + static inline unsigned int +-hashfn(const struct super_block *sb, unsigned int id, int type) ++hashfn(struct dqhash *hash, unsigned int id, int type) + { + unsigned long tmp; + +- tmp = (((unsigned long)sb>>L1_CACHE_SHIFT) ^ id) * (MAXQUOTAS - type); ++ tmp = (((unsigned long)hash >> L1_CACHE_SHIFT) ^ id) * (MAXQUOTAS - type); + return (tmp + (tmp >> dq_hash_bits)) & dq_hash_mask; + } + + /* + * Following list functions expect dq_list_lock to be held + */ +-static inline void insert_dquot_hash(struct dquot *dquot) ++static inline void insert_dquot_hash(struct dqhash *hash, struct dquot *dquot) + { +- struct hlist_head *head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type); ++ struct hlist_head *head = dquot_hash + ++ hashfn(hash, dquot->dq_id, dquot->dq_type); ++ /* struct hlist_head *head = hash->dqh_hash + ++ hashfn(dquot->dq_dqh, dquot->dq_id, dquot->dq_type); */ + hlist_add_head(&dquot->dq_hash, head); ++ dquot->dq_dqh = dqhget(hash); + } + + static inline void remove_dquot_hash(struct dquot *dquot) + { + hlist_del_init(&dquot->dq_hash); ++ dqhput(dquot->dq_dqh); ++ dquot->dq_dqh = NULL; + } + +-static inline struct dquot *find_dquot(unsigned int hashent, struct super_block *sb, unsigned int id, int type) ++static inline struct dquot *find_dquot(struct dqhash *hash, ++ unsigned int hashent, unsigned int id, int type) + { + struct hlist_node *node; + struct dquot *dquot; + +- hlist_for_each (node, dquot_hash+hashent) { ++ /* hlist_for_each (node, hash->dqh_hash + hashent) { */ ++ hlist_for_each (node, dquot_hash + hashent) { + dquot = hlist_entry(node, struct dquot, dq_hash); +- if (dquot->dq_sb == sb && dquot->dq_id == id && dquot->dq_type == type) ++ if (dquot->dq_dqh == hash && dquot->dq_id == id && dquot->dq_type == type) + return dquot; + } + return NODQUOT; +@@ -285,13 +294,13 @@ static void wait_on_dquot(struct dquot * + up(&dquot->dq_lock); + } + +-#define mark_dquot_dirty(dquot) ((dquot)->dq_sb->dq_op->mark_dirty(dquot)) ++#define mark_dquot_dirty(dquot) ((dquot)->dq_dqh->dqh_qop->mark_dirty(dquot)) + + int dquot_mark_dquot_dirty(struct dquot *dquot) + { + spin_lock(&dq_list_lock); + if (!test_and_set_bit(DQ_MOD_B, &dquot->dq_flags)) +- list_add(&dquot->dq_dirty, &sb_dqopt(dquot->dq_sb)-> ++ list_add(&dquot->dq_dirty, &dqh_dqopt(dquot->dq_dqh)-> + info[dquot->dq_type].dqi_dirty_list); + spin_unlock(&dq_list_lock); + return 0; +@@ -306,9 +315,9 @@ static inline int clear_dquot_dirty(stru + return 1; + } + +-void mark_info_dirty(struct super_block *sb, int type) ++void mark_info_dirty(struct dqhash *hash, int type) + { +- set_bit(DQF_INFO_DIRTY_B, &sb_dqopt(sb)->info[type].dqi_flags); ++ set_bit(DQF_INFO_DIRTY_B, &dqh_dqopt(hash)->info[type].dqi_flags); + } + EXPORT_SYMBOL(mark_info_dirty); + +@@ -319,7 +328,7 @@ EXPORT_SYMBOL(mark_info_dirty); + int dquot_acquire(struct dquot *dquot) + { + int ret = 0, ret2 = 0; +- struct quota_info *dqopt = sb_dqopt(dquot->dq_sb); ++ struct quota_info *dqopt = dqh_dqopt(dquot->dq_dqh); + + down(&dquot->dq_lock); + down(&dqopt->dqio_sem); +@@ -333,7 +342,7 @@ int dquot_acquire(struct dquot *dquot) + ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot); + /* Write the info if needed */ + if (info_dirty(&dqopt->info[dquot->dq_type])) +- ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type); ++ ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_dqh, dquot->dq_type); + if (ret < 0) + goto out_iolock; + if (ret2 < 0) { +@@ -354,7 +363,7 @@ out_iolock: + int dquot_commit(struct dquot *dquot) + { + int ret = 0, ret2 = 0; +- struct quota_info *dqopt = sb_dqopt(dquot->dq_sb); ++ struct quota_info *dqopt = dqh_dqopt(dquot->dq_dqh); + + down(&dqopt->dqio_sem); + spin_lock(&dq_list_lock); +@@ -368,7 +377,7 @@ int dquot_commit(struct dquot *dquot) + if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) { + ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot); + if (info_dirty(&dqopt->info[dquot->dq_type])) +- ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type); ++ ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_dqh, dquot->dq_type); + if (ret >= 0) + ret = ret2; + } +@@ -383,7 +392,7 @@ out_sem: + int dquot_release(struct dquot *dquot) + { + int ret = 0, ret2 = 0; +- struct quota_info *dqopt = sb_dqopt(dquot->dq_sb); ++ struct quota_info *dqopt = dqh_dqopt(dquot->dq_dqh); + + down(&dquot->dq_lock); + /* Check whether we are not racing with some other dqget() */ +@@ -394,7 +403,7 @@ int dquot_release(struct dquot *dquot) + ret = dqopt->ops[dquot->dq_type]->release_dqblk(dquot); + /* Write the info */ + if (info_dirty(&dqopt->info[dquot->dq_type])) +- ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_sb, dquot->dq_type); ++ ret2 = dqopt->ops[dquot->dq_type]->write_file_info(dquot->dq_dqh, dquot->dq_type); + if (ret >= 0) + ret = ret2; + } +@@ -409,13 +418,13 @@ out_dqlock: + * quota is disabled and pointers from inodes removed so there cannot be new + * quota users. Also because we hold dqonoff_sem there can be no quota users + * for this sb+type at all. */ +-static void invalidate_dquots(struct super_block *sb, int type) ++static void invalidate_dquots(struct dqhash *hash, int type) + { + struct dquot *dquot, *tmp; + + spin_lock(&dq_list_lock); + list_for_each_entry_safe(dquot, tmp, &inuse_list, dq_inuse) { +- if (dquot->dq_sb != sb) ++ if (dquot->dq_dqh != hash) + continue; + if (dquot->dq_type != type) + continue; +@@ -432,18 +441,94 @@ static void invalidate_dquots(struct sup + spin_unlock(&dq_list_lock); + } + +-int vfs_quota_sync(struct super_block *sb, int type) ++ ++/* Dquota Hash Management Functions */ ++ ++static LIST_HEAD(dqhash_list); ++ ++struct dqhash *new_dqhash(struct super_block *sb, unsigned int id) ++{ ++ struct dqhash *hash; ++ int err; ++ ++ err = -ENOMEM; ++ hash = kmalloc(sizeof(struct dqhash), GFP_USER); ++ if (!hash) ++ goto out; ++ ++ memset(hash, 0, sizeof(struct dqhash)); ++ hash->dqh_id = id; ++ atomic_set(&hash->dqh_count, 1); ++ ++ INIT_LIST_HEAD(&hash->dqh_list); ++ ++ sema_init(&hash->dqh_dqopt.dqio_sem, 1); ++ sema_init(&hash->dqh_dqopt.dqonoff_sem, 1); ++ init_rwsem(&hash->dqh_dqopt.dqptr_sem); ++ hash->dqh_qop = sb->s_qop; ++ hash->dqh_qcop = sb->s_qcop; ++ hash->dqh_sb = sb; ++ ++ lock_kernel(); ++ list_add(&hash->dqh_list, &dqhash_list); ++ unlock_kernel(); ++ vxdprintk(VXD_CBIT(misc, 0), ++ "new_dqhash: %p [#0x%08x]", hash, hash->dqh_id); ++ return hash; ++ ++ // kfree(hash); ++out: ++ return ERR_PTR(err); ++} ++ ++void destroy_dqhash(struct dqhash *hash) ++{ ++ int cnt; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "destroy_dqhash: %p [#0x%08x] c=%d", ++ hash, hash->dqh_id, atomic_read(&hash->dqh_count)); ++ lock_kernel(); ++ list_del_init(&hash->dqh_list); ++ unlock_kernel(); ++ for (cnt = 0; cnt < MAXQUOTAS; cnt++) /* should not be required anymore! */ ++ invalidate_dquots(hash, cnt); ++ kfree(hash); ++} ++ ++ ++struct dqhash *find_dqhash(unsigned int id) ++{ ++ struct list_head *head; ++ struct dqhash *hash; ++ ++ lock_kernel(); ++ list_for_each(head, &dqhash_list) { ++ hash = list_entry(head, struct dqhash, dqh_list); ++ if (hash->dqh_id == id) ++ goto dqh_found; ++ } ++ unlock_kernel(); ++ return NULL; ++ ++dqh_found: ++ unlock_kernel(); ++ return dqhget(hash); ++} ++ ++ ++int vfs_quota_sync(struct dqhash *hash, int type) + { + struct list_head *dirty; + struct dquot *dquot; +- struct quota_info *dqopt = sb_dqopt(sb); ++ struct quota_info *dqopt = dqh_dqopt(hash); + int cnt; + + down(&dqopt->dqonoff_sem); + for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + if (type != -1 && cnt != type) + continue; +- if (!sb_has_quota_enabled(sb, cnt)) ++ if (!dqh_has_quota_enabled(hash, cnt)) + continue; + spin_lock(&dq_list_lock); + dirty = &dqopt->info[cnt].dqi_dirty_list; +@@ -460,7 +545,7 @@ int vfs_quota_sync(struct super_block *s + atomic_inc(&dquot->dq_count); + dqstats.lookups++; + spin_unlock(&dq_list_lock); +- sb->dq_op->write_dquot(dquot); ++ hash->dqh_qop->write_dquot(dquot); + dqput(dquot); + spin_lock(&dq_list_lock); + } +@@ -468,9 +553,10 @@ int vfs_quota_sync(struct super_block *s + } + + for (cnt = 0; cnt < MAXQUOTAS; cnt++) +- if ((cnt == type || type == -1) && sb_has_quota_enabled(sb, cnt) ++ if ((cnt == type || type == -1) ++ && dqh_has_quota_enabled(hash, cnt) + && info_dirty(&dqopt->info[cnt])) +- sb->dq_op->write_info(sb, cnt); ++ hash->dqh_qop->write_info(hash, cnt); + spin_lock(&dq_list_lock); + dqstats.syncs++; + spin_unlock(&dq_list_lock); +@@ -525,7 +611,7 @@ static void dqput(struct dquot *dquot) + if (!atomic_read(&dquot->dq_count)) { + printk("VFS: dqput: trying to free free dquot\n"); + printk("VFS: device %s, dquot of %s %d\n", +- dquot->dq_sb->s_id, ++ dquot->dq_dqh->dqh_sb->s_id, + quotatypes[dquot->dq_type], + dquot->dq_id); + BUG(); +@@ -547,14 +633,14 @@ we_slept: + if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && dquot_dirty(dquot)) { + spin_unlock(&dq_list_lock); + /* Commit dquot before releasing */ +- dquot->dq_sb->dq_op->write_dquot(dquot); ++ dquot->dq_dqh->dqh_qop->write_dquot(dquot); + goto we_slept; + } + /* Clear flag in case dquot was inactive (something bad happened) */ + clear_dquot_dirty(dquot); + if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) { + spin_unlock(&dq_list_lock); +- dquot->dq_sb->dq_op->release_dquot(dquot); ++ dquot->dq_dqh->dqh_qop->release_dquot(dquot); + goto we_slept; + } + atomic_dec(&dquot->dq_count); +@@ -567,7 +653,7 @@ we_slept: + spin_unlock(&dq_list_lock); + } + +-static struct dquot *get_empty_dquot(struct super_block *sb, int type) ++static struct dquot *get_empty_dquot(int type) + { + struct dquot *dquot; + +@@ -581,7 +667,7 @@ static struct dquot *get_empty_dquot(str + INIT_LIST_HEAD(&dquot->dq_inuse); + INIT_HLIST_NODE(&dquot->dq_hash); + INIT_LIST_HEAD(&dquot->dq_dirty); +- dquot->dq_sb = sb; ++ dquot->dq_dqh = NULL; + dquot->dq_type = type; + atomic_set(&dquot->dq_count, 1); + +@@ -592,19 +678,19 @@ static struct dquot *get_empty_dquot(str + * Get reference to dquot + * MUST be called with either dqptr_sem or dqonoff_sem held + */ +-static struct dquot *dqget(struct super_block *sb, unsigned int id, int type) ++static struct dquot *dqget(struct dqhash *hash, unsigned int id, int type) + { +- unsigned int hashent = hashfn(sb, id, type); ++ unsigned int hashent = hashfn(hash, id, type); + struct dquot *dquot, *empty = NODQUOT; + +- if (!sb_has_quota_enabled(sb, type)) ++ if (!dqh_has_quota_enabled(hash, type)) + return NODQUOT; + we_slept: + spin_lock(&dq_list_lock); +- if ((dquot = find_dquot(hashent, sb, id, type)) == NODQUOT) { ++ if ((dquot = find_dquot(hash, hashent, id, type)) == NODQUOT) { + if (empty == NODQUOT) { + spin_unlock(&dq_list_lock); +- if ((empty = get_empty_dquot(sb, type)) == NODQUOT) ++ if ((empty = get_empty_dquot(type)) == NODQUOT) + schedule(); /* Try to wait for a moment... */ + goto we_slept; + } +@@ -613,7 +699,7 @@ we_slept: + /* all dquots go on the inuse_list */ + put_inuse(dquot); + /* hash it first so it can be found */ +- insert_dquot_hash(dquot); ++ insert_dquot_hash(hash, dquot); + dqstats.lookups++; + spin_unlock(&dq_list_lock); + } else { +@@ -630,12 +716,13 @@ we_slept: + * finished or it will be canceled due to dq_count > 1 test */ + wait_on_dquot(dquot); + /* Read the dquot and instantiate it (everything done only if needed) */ +- if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && sb->dq_op->acquire_dquot(dquot) < 0) { ++ if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && ++ hash->dqh_qop->acquire_dquot(dquot) < 0) { + dqput(dquot); + return NODQUOT; + } + #ifdef __DQUOT_PARANOIA +- if (!dquot->dq_sb) /* Has somebody invalidated entry under us? */ ++ if (!dquot->dq_dqh) /* Has somebody invalidated entry under us? */ + BUG(); + #endif + +@@ -657,9 +744,10 @@ static int dqinit_needed(struct inode *i + } + + /* This routine is guarded by dqonoff_sem semaphore */ +-static void add_dquot_ref(struct super_block *sb, int type) ++static void add_dquot_ref(struct dqhash *hash, int type) + { + struct list_head *p; ++ struct super_block *sb = hash->dqh_sb; + + restart: + file_list_lock(); +@@ -669,7 +757,7 @@ restart: + if (filp->f_mode & FMODE_WRITE && dqinit_needed(inode, type)) { + struct dentry *dentry = dget(filp->f_dentry); + file_list_unlock(); +- sb->dq_op->initialize(inode, type); ++ hash->dqh_qop->initialize(inode, type); + dput(dentry); + /* As we may have blocked we had better restart... */ + goto restart; +@@ -728,16 +816,16 @@ static void put_dquot_list(struct list_h + } + + /* Gather all references from inodes and drop them */ +-static void drop_dquot_ref(struct super_block *sb, int type) ++static void drop_dquot_ref(struct dqhash *hash, int type) + { + LIST_HEAD(tofree_head); + + /* We need to be guarded against prune_icache to reach all the + * inodes - otherwise some can be on the local list of prune_icache */ + down(&iprune_sem); +- down_write(&sb_dqopt(sb)->dqptr_sem); +- remove_dquot_ref(sb, type, &tofree_head); +- up_write(&sb_dqopt(sb)->dqptr_sem); ++ down_write(&dqh_dqopt(hash)->dqptr_sem); ++ remove_dquot_ref(hash, type, &tofree_head); ++ up_write(&dqh_dqopt(hash)->dqptr_sem); + up(&iprune_sem); + put_dquot_list(&tofree_head); + } +@@ -809,7 +897,7 @@ static void print_warning(struct dquot * + if (!need_print_warning(dquot) || (flag && test_and_set_bit(flag, &dquot->dq_flags))) + return; + +- tty_write_message(current->signal->tty, dquot->dq_sb->s_id); ++ tty_write_message(current->signal->tty, dquot->dq_dqh->dqh_sb->s_id); + if (warntype == ISOFTWARN || warntype == BSOFTWARN) + tty_write_message(current->signal->tty, ": warning, "); + else +@@ -849,7 +937,7 @@ static inline void flush_warnings(struct + + static inline char ignore_hardlimit(struct dquot *dquot) + { +- struct mem_dqinfo *info = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_type]; ++ struct mem_dqinfo *info = &dqh_dqopt(dquot->dq_dqh)->info[dquot->dq_type]; + + return capable(CAP_SYS_RESOURCE) && + (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD || !(info->dqi_flags & V1_DQF_RSQUASH)); +@@ -881,7 +969,7 @@ static int check_idq(struct dquot *dquot + (dquot->dq_dqb.dqb_curinodes + inodes) > dquot->dq_dqb.dqb_isoftlimit && + dquot->dq_dqb.dqb_itime == 0) { + *warntype = ISOFTWARN; +- dquot->dq_dqb.dqb_itime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace; ++ dquot->dq_dqb.dqb_itime = get_seconds() + dqh_dqopt(dquot->dq_dqh)->info[dquot->dq_type].dqi_igrace; + } + + return QUOTA_OK; +@@ -916,7 +1004,7 @@ static int check_bdq(struct dquot *dquot + dquot->dq_dqb.dqb_btime == 0) { + if (!prealloc) { + *warntype = BSOFTWARN; +- dquot->dq_dqb.dqb_btime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_bgrace; ++ dquot->dq_dqb.dqb_btime = get_seconds() + dqh_dqopt(dquot->dq_dqh)->info[dquot->dq_type].dqi_bgrace; + } + else + /* +@@ -942,7 +1030,7 @@ int dquot_initialize(struct inode *inode + * re-enter the quota code and are already holding the semaphore */ + if (IS_NOQUOTA(inode)) + return 0; +- down_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + /* Having dqptr_sem we know NOQUOTA flags can't be altered... */ + if (IS_NOQUOTA(inode)) + goto out_err; +@@ -958,11 +1046,11 @@ int dquot_initialize(struct inode *inode + id = inode->i_gid; + break; + } +- inode->i_dquot[cnt] = dqget(inode->i_sb, id, cnt); ++ inode->i_dquot[cnt] = dqget(inode->i_dqh, id, cnt); + } + } + out_err: +- up_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return ret; + } + +@@ -974,14 +1062,14 @@ int dquot_drop(struct inode *inode) + { + int cnt; + +- down_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + if (inode->i_dquot[cnt] != NODQUOT) { + dqput(inode->i_dquot[cnt]); + inode->i_dquot[cnt] = NODQUOT; + } + } +- up_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return 0; + } + +@@ -1012,9 +1100,9 @@ out_add: + for (cnt = 0; cnt < MAXQUOTAS; cnt++) + warntype[cnt] = NOWARN; + +- down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + if (IS_NOQUOTA(inode)) { /* Now we can do reliable test... */ +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + goto out_add; + } + spin_lock(&dq_data_lock); +@@ -1039,7 +1127,7 @@ warn_put_all: + if (inode->i_dquot[cnt]) + mark_dquot_dirty(inode->i_dquot[cnt]); + flush_warnings(inode->i_dquot, warntype); +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return ret; + } + +@@ -1057,9 +1145,9 @@ int dquot_alloc_inode(const struct inode + return QUOTA_OK; + for (cnt = 0; cnt < MAXQUOTAS; cnt++) + warntype[cnt] = NOWARN; +- down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + if (IS_NOQUOTA(inode)) { +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return QUOTA_OK; + } + spin_lock(&dq_data_lock); +@@ -1084,7 +1172,7 @@ warn_put_all: + if (inode->i_dquot[cnt]) + mark_dquot_dirty(inode->i_dquot[cnt]); + flush_warnings((struct dquot **)inode->i_dquot, warntype); +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return ret; + } + +@@ -1102,10 +1190,10 @@ out_sub: + inode_sub_bytes(inode, number); + return QUOTA_OK; + } +- down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + /* Now recheck reliably when holding dqptr_sem */ + if (IS_NOQUOTA(inode)) { +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + goto out_sub; + } + spin_lock(&dq_data_lock); +@@ -1120,7 +1208,7 @@ out_sub: + for (cnt = 0; cnt < MAXQUOTAS; cnt++) + if (inode->i_dquot[cnt]) + mark_dquot_dirty(inode->i_dquot[cnt]); +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return QUOTA_OK; + } + +@@ -1135,10 +1223,10 @@ int dquot_free_inode(const struct inode + * re-enter the quota code and are already holding the semaphore */ + if (IS_NOQUOTA(inode)) + return QUOTA_OK; +- down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + /* Now recheck reliably when holding dqptr_sem */ + if (IS_NOQUOTA(inode)) { +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return QUOTA_OK; + } + spin_lock(&dq_data_lock); +@@ -1152,7 +1240,7 @@ int dquot_free_inode(const struct inode + for (cnt = 0; cnt < MAXQUOTAS; cnt++) + if (inode->i_dquot[cnt]) + mark_dquot_dirty(inode->i_dquot[cnt]); +- up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_read(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return QUOTA_OK; + } + +@@ -1167,6 +1255,7 @@ int dquot_transfer(struct inode *inode, + qsize_t space; + struct dquot *transfer_from[MAXQUOTAS]; + struct dquot *transfer_to[MAXQUOTAS]; ++ struct dqhash *dqh = inode->i_sb->s_dqh; + int cnt, ret = NO_QUOTA, chuid = (iattr->ia_valid & ATTR_UID) && inode->i_uid != iattr->ia_uid, + chgid = (iattr->ia_valid & ATTR_GID) && inode->i_gid != iattr->ia_gid; + char warntype[MAXQUOTAS]; +@@ -1180,10 +1269,10 @@ int dquot_transfer(struct inode *inode, + transfer_to[cnt] = transfer_from[cnt] = NODQUOT; + warntype[cnt] = NOWARN; + } +- down_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ down_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + /* Now recheck reliably when holding dqptr_sem */ + if (IS_NOQUOTA(inode)) { /* File without quota accounting? */ +- up_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return QUOTA_OK; + } + /* First build the transfer_to list - here we can block on +@@ -1194,12 +1283,12 @@ int dquot_transfer(struct inode *inode, + case USRQUOTA: + if (!chuid) + continue; +- transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_uid, cnt); ++ transfer_to[cnt] = dqget(dqh, iattr->ia_uid, cnt); + break; + case GRPQUOTA: + if (!chgid) + continue; +- transfer_to[cnt] = dqget(inode->i_sb, iattr->ia_gid, cnt); ++ transfer_to[cnt] = dqget(dqh, iattr->ia_gid, cnt); + break; + } + } +@@ -1254,20 +1343,20 @@ warn_put_all: + if (ret == NO_QUOTA && transfer_to[cnt] != NODQUOT) + dqput(transfer_to[cnt]); + } +- up_write(&sb_dqopt(inode->i_sb)->dqptr_sem); ++ up_write(&dqh_dqopt(inode->i_dqh)->dqptr_sem); + return ret; + } + + /* + * Write info of quota file to disk + */ +-int dquot_commit_info(struct super_block *sb, int type) ++int dquot_commit_info(struct dqhash *hash, int type) + { + int ret; +- struct quota_info *dqopt = sb_dqopt(sb); ++ struct quota_info *dqopt = dqh_dqopt(hash); + + down(&dqopt->dqio_sem); +- ret = dqopt->ops[type]->write_file_info(sb, type); ++ ret = dqopt->ops[type]->write_file_info(hash, type); + up(&dqopt->dqio_sem); + return ret; + } +@@ -1317,10 +1406,10 @@ static inline void reset_enable_flags(st + /* + * Turn quota off on a device. type == -1 ==> quotaoff for all types (umount) + */ +-int vfs_quota_off(struct super_block *sb, int type) ++int vfs_quota_off(struct dqhash *hash, int type) + { + int cnt; +- struct quota_info *dqopt = sb_dqopt(sb); ++ struct quota_info *dqopt = dqh_dqopt(hash); + struct inode *toputinode[MAXQUOTAS]; + + /* We need to serialize quota_off() for device */ +@@ -1329,21 +1418,21 @@ int vfs_quota_off(struct super_block *sb + toputinode[cnt] = NULL; + if (type != -1 && cnt != type) + continue; +- if (!sb_has_quota_enabled(sb, cnt)) ++ if (!dqh_has_quota_enabled(hash, cnt)) + continue; + reset_enable_flags(dqopt, cnt); + + /* Note: these are blocking operations */ +- drop_dquot_ref(sb, cnt); +- invalidate_dquots(sb, cnt); ++ drop_dquot_ref(hash, cnt); ++ invalidate_dquots(hash, cnt); + /* + * Now all dquots should be invalidated, all writes done so we should be only + * users of the info. No locks needed. + */ + if (info_dirty(&dqopt->info[cnt])) +- sb->dq_op->write_info(sb, cnt); ++ hash->dqh_qop->write_info(hash, cnt); + if (dqopt->ops[cnt]->free_file_info) +- dqopt->ops[cnt]->free_file_info(sb, cnt); ++ dqopt->ops[cnt]->free_file_info(hash, cnt); + put_quota_format(dqopt->info[cnt].dqi_format); + + toputinode[cnt] = dqopt->files[cnt]; +@@ -1356,9 +1445,9 @@ int vfs_quota_off(struct super_block *sb + up(&dqopt->dqonoff_sem); + /* Sync the superblock so that buffers with quota data are written to + * disk (and so userspace sees correct data afterwards). */ +- if (sb->s_op->sync_fs) +- sb->s_op->sync_fs(sb, 1); +- sync_blockdev(sb->s_bdev); ++ if (hash->dqh_sb->s_op->sync_fs) ++ hash->dqh_sb->s_op->sync_fs(hash->dqh_sb, 1); ++ sync_blockdev(hash->dqh_sb->s_bdev); + /* Now the quota files are just ordinary files and we can set the + * inode flags back. Moreover we discard the pagecache so that + * userspace sees the writes we did bypassing the pagecache. We +@@ -1369,7 +1458,7 @@ int vfs_quota_off(struct super_block *sb + down(&dqopt->dqonoff_sem); + /* If quota was reenabled in the meantime, we have + * nothing to do */ +- if (!sb_has_quota_enabled(sb, cnt)) { ++ if (!dqh_has_quota_enabled(hash, cnt)) { + mutex_lock(&toputinode[cnt]->i_mutex); + toputinode[cnt]->i_flags &= ~(S_IMMUTABLE | + S_NOATIME | S_NOQUOTA); +@@ -1380,8 +1469,8 @@ int vfs_quota_off(struct super_block *sb + } + up(&dqopt->dqonoff_sem); + } +- if (sb->s_bdev) +- invalidate_bdev(sb->s_bdev, 0); ++ if (hash->dqh_sb->s_bdev) ++ invalidate_bdev(hash->dqh_sb->s_bdev, 0); + return 0; + } + +@@ -1394,7 +1483,8 @@ static int vfs_quota_on_inode(struct ino + { + struct quota_format_type *fmt = find_quota_format(format_id); + struct super_block *sb = inode->i_sb; +- struct quota_info *dqopt = sb_dqopt(sb); ++ struct dqhash *hash = inode->i_dqh; ++ struct quota_info *dqopt = dqh_dqopt(hash); + int error; + int oldflags = -1; + +@@ -1420,7 +1510,7 @@ static int vfs_quota_on_inode(struct ino + invalidate_bdev(sb->s_bdev, 0); + mutex_lock(&inode->i_mutex); + down(&dqopt->dqonoff_sem); +- if (sb_has_quota_enabled(sb, type)) { ++ if (dqh_has_quota_enabled(hash, type)) { + error = -EBUSY; + goto out_lock; + } +@@ -1431,21 +1521,21 @@ static int vfs_quota_on_inode(struct ino + oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA); + inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE; + up_write(&dqopt->dqptr_sem); +- sb->dq_op->drop(inode); ++ hash->dqh_qop->drop(inode); + + error = -EIO; + dqopt->files[type] = igrab(inode); + if (!dqopt->files[type]) + goto out_lock; + error = -EINVAL; +- if (!fmt->qf_ops->check_quota_file(sb, type)) ++ if (!fmt->qf_ops->check_quota_file(hash, type)) + goto out_file_init; + + dqopt->ops[type] = fmt->qf_ops; + dqopt->info[type].dqi_format = fmt; + INIT_LIST_HEAD(&dqopt->info[type].dqi_dirty_list); + down(&dqopt->dqio_sem); +- if ((error = dqopt->ops[type]->read_file_info(sb, type)) < 0) { ++ if ((error = dqopt->ops[type]->read_file_info(hash, type)) < 0) { + up(&dqopt->dqio_sem); + goto out_file_init; + } +@@ -1453,7 +1543,7 @@ static int vfs_quota_on_inode(struct ino + mutex_unlock(&inode->i_mutex); + set_enable_flags(dqopt, type); + +- add_dquot_ref(sb, type); ++ add_dquot_ref(hash, type); + up(&dqopt->dqonoff_sem); + + return 0; +@@ -1479,7 +1569,7 @@ out_fmt: + } + + /* Actual function called from quotactl() */ +-int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path) ++int vfs_quota_on(struct dqhash *hash, int type, int format_id, char *path) + { + struct nameidata nd; + int error; +@@ -1491,7 +1581,7 @@ int vfs_quota_on(struct super_block *sb, + if (error) + goto out_path; + /* Quota file not on the same filesystem? */ +- if (nd.mnt->mnt_sb != sb) ++ if (nd.mnt->mnt_sb != hash->dqh_sb) + error = -EXDEV; + else + error = vfs_quota_on_inode(nd.dentry->d_inode, type, format_id); +@@ -1504,13 +1594,13 @@ out_path: + * This function is used when filesystem needs to initialize quotas + * during mount time. + */ +-int vfs_quota_on_mount(struct super_block *sb, char *qf_name, ++int vfs_quota_on_mount(struct dqhash *hash, char *qf_name, + int format_id, int type) + { + struct dentry *dentry; + int error; + +- dentry = lookup_one_len(qf_name, sb->s_root, strlen(qf_name)); ++ dentry = lookup_one_len(qf_name, hash->dqh_sb->s_root, strlen(qf_name)); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + +@@ -1546,18 +1636,18 @@ static void do_get_dqblk(struct dquot *d + spin_unlock(&dq_data_lock); + } + +-int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di) ++int vfs_get_dqblk(struct dqhash *hash, int type, qid_t id, struct if_dqblk *di) + { + struct dquot *dquot; + +- down(&sb_dqopt(sb)->dqonoff_sem); +- if (!(dquot = dqget(sb, id, type))) { +- up(&sb_dqopt(sb)->dqonoff_sem); ++ down(&dqh_dqopt(hash)->dqonoff_sem); ++ if (!(dquot = dqget(hash, id, type))) { ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return -ESRCH; + } + do_get_dqblk(dquot, di); + dqput(dquot); +- up(&sb_dqopt(sb)->dqonoff_sem); ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return 0; + } + +@@ -1597,7 +1687,7 @@ static void do_set_dqblk(struct dquot *d + clear_bit(DQ_BLKS_B, &dquot->dq_flags); + } + else if (!(di->dqb_valid & QIF_BTIME)) /* Set grace only if user hasn't provided his own... */ +- dm->dqb_btime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_bgrace; ++ dm->dqb_btime = get_seconds() + dqh_dqopt(dquot->dq_dqh)->info[dquot->dq_type].dqi_bgrace; + } + if (check_ilim) { + if (!dm->dqb_isoftlimit || dm->dqb_curinodes < dm->dqb_isoftlimit) { +@@ -1605,7 +1695,7 @@ static void do_set_dqblk(struct dquot *d + clear_bit(DQ_INODES_B, &dquot->dq_flags); + } + else if (!(di->dqb_valid & QIF_ITIME)) /* Set grace only if user hasn't provided his own... */ +- dm->dqb_itime = get_seconds() + sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace; ++ dm->dqb_itime = get_seconds() + dqh_dqopt(dquot->dq_dqh)->info[dquot->dq_type].dqi_igrace; + } + if (dm->dqb_bhardlimit || dm->dqb_bsoftlimit || dm->dqb_ihardlimit || dm->dqb_isoftlimit) + clear_bit(DQ_FAKE_B, &dquot->dq_flags); +@@ -1615,53 +1705,53 @@ static void do_set_dqblk(struct dquot *d + mark_dquot_dirty(dquot); + } + +-int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di) ++int vfs_set_dqblk(struct dqhash *hash, int type, qid_t id, struct if_dqblk *di) + { + struct dquot *dquot; + +- down(&sb_dqopt(sb)->dqonoff_sem); +- if (!(dquot = dqget(sb, id, type))) { +- up(&sb_dqopt(sb)->dqonoff_sem); ++ down(&dqh_dqopt(hash)->dqonoff_sem); ++ if (!(dquot = dqget(hash, id, type))) { ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return -ESRCH; + } + do_set_dqblk(dquot, di); + dqput(dquot); +- up(&sb_dqopt(sb)->dqonoff_sem); ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return 0; + } + + /* Generic routine for getting common part of quota file information */ +-int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii) ++int vfs_get_dqinfo(struct dqhash *hash, int type, struct if_dqinfo *ii) + { + struct mem_dqinfo *mi; + +- down(&sb_dqopt(sb)->dqonoff_sem); +- if (!sb_has_quota_enabled(sb, type)) { +- up(&sb_dqopt(sb)->dqonoff_sem); ++ down(&dqh_dqopt(hash)->dqonoff_sem); ++ if (!dqh_has_quota_enabled(hash, type)) { ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return -ESRCH; + } +- mi = sb_dqopt(sb)->info + type; ++ mi = dqh_dqopt(hash)->info + type; + spin_lock(&dq_data_lock); + ii->dqi_bgrace = mi->dqi_bgrace; + ii->dqi_igrace = mi->dqi_igrace; + ii->dqi_flags = mi->dqi_flags & DQF_MASK; + ii->dqi_valid = IIF_ALL; + spin_unlock(&dq_data_lock); +- up(&sb_dqopt(sb)->dqonoff_sem); ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return 0; + } + + /* Generic routine for setting common part of quota file information */ +-int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii) ++int vfs_set_dqinfo(struct dqhash *hash, int type, struct if_dqinfo *ii) + { + struct mem_dqinfo *mi; + +- down(&sb_dqopt(sb)->dqonoff_sem); +- if (!sb_has_quota_enabled(sb, type)) { +- up(&sb_dqopt(sb)->dqonoff_sem); ++ down(&dqh_dqopt(hash)->dqonoff_sem); ++ if (!dqh_has_quota_enabled(hash, type)) { ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return -ESRCH; + } +- mi = sb_dqopt(sb)->info + type; ++ mi = dqh_dqopt(hash)->info + type; + spin_lock(&dq_data_lock); + if (ii->dqi_valid & IIF_BGRACE) + mi->dqi_bgrace = ii->dqi_bgrace; +@@ -1670,10 +1760,10 @@ int vfs_set_dqinfo(struct super_block *s + if (ii->dqi_valid & IIF_FLAGS) + mi->dqi_flags = (mi->dqi_flags & ~DQF_MASK) | (ii->dqi_flags & DQF_MASK); + spin_unlock(&dq_data_lock); +- mark_info_dirty(sb, type); ++ mark_info_dirty(hash, type); + /* Force write to disk */ +- sb->dq_op->write_info(sb, type); +- up(&sb_dqopt(sb)->dqonoff_sem); ++ hash->dqh_qop->write_info(hash, type); ++ up(&dqh_dqopt(hash)->dqonoff_sem); + return 0; + } + +Index: linux-2.6.16/fs/exec.c +=================================================================== +--- linux-2.6.16.orig/fs/exec.c ++++ linux-2.6.16/fs/exec.c +@@ -49,6 +49,7 @@ + #include <linux/rmap.h> + #include <linux/acct.h> + #include <linux/cn_proc.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/mmu_context.h> +@@ -436,7 +437,8 @@ int setup_arg_pages(struct linux_binprm + kmem_cache_free(vm_area_cachep, mpnt); + return ret; + } +- mm->stack_vm = mm->total_vm = vma_pages(mpnt); ++ vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt)); ++ mm->stack_vm = mm->total_vm; + } + + for (i = 0 ; i < MAX_ARG_PAGES ; i++) { +Index: linux-2.6.16/fs/ext2/balloc.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/balloc.c ++++ linux-2.6.16/fs/ext2/balloc.c +@@ -17,6 +17,8 @@ + #include <linux/sched.h> + #include <linux/buffer_head.h> + #include <linux/capability.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vs_tag.h> + + /* + * balloc.c contains the blocks allocation and deallocation routines +@@ -109,6 +111,8 @@ static int reserve_blocks(struct super_b + free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); + root_blocks = le32_to_cpu(es->s_r_blocks_count); + ++ DLIMIT_ADJUST_BLOCK(sb, dx_current_tag(), &free_blocks, &root_blocks); ++ + if (free_blocks < count) + count = free_blocks; + +@@ -259,6 +263,7 @@ do_more: + } + error_return: + brelse(bitmap_bh); ++ DLIMIT_FREE_BLOCK(inode, freed); + release_blocks(sb, freed); + DQUOT_FREE_BLOCK(inode, freed); + } +@@ -362,6 +367,10 @@ int ext2_new_block(struct inode *inode, + *err = -ENOSPC; + goto out_dquot; + } ++ if (DLIMIT_ALLOC_BLOCK(inode, es_alloc)) { ++ *err = -ENOSPC; ++ goto out_dlimit; ++ } + + ext2_debug ("goal=%lu.\n", goal); + +@@ -509,6 +518,8 @@ got_block: + *err = 0; + out_release: + group_release_blocks(sb, group_no, desc, gdp_bh, group_alloc); ++ DLIMIT_FREE_BLOCK(inode, es_alloc); ++out_dlimit: + release_blocks(sb, es_alloc); + out_dquot: + DQUOT_FREE_BLOCK(inode, dq_alloc); +Index: linux-2.6.16/fs/ext2/ext2.h +=================================================================== +--- linux-2.6.16.orig/fs/ext2/ext2.h ++++ linux-2.6.16/fs/ext2/ext2.h +@@ -162,6 +162,7 @@ extern struct file_operations ext2_xip_f + extern struct address_space_operations ext2_aops; + extern struct address_space_operations ext2_aops_xip; + extern struct address_space_operations ext2_nobh_aops; ++extern int ext2_sync_flags(struct inode *inode); + + /* namei.c */ + extern struct inode_operations ext2_dir_inode_operations; +Index: linux-2.6.16/fs/ext2/file.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/file.c ++++ linux-2.6.16/fs/ext2/file.c +@@ -53,6 +53,7 @@ struct file_operations ext2_file_operati + .readv = generic_file_readv, + .writev = generic_file_writev, + .sendfile = generic_file_sendfile, ++ .sendpage = generic_file_sendpage, + }; + + #ifdef CONFIG_EXT2_FS_XIP +@@ -79,4 +80,5 @@ struct inode_operations ext2_file_inode_ + #endif + .setattr = ext2_setattr, + .permission = ext2_permission, ++ .sync_flags = ext2_sync_flags, + }; +Index: linux-2.6.16/fs/ext2/ialloc.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/ialloc.c ++++ linux-2.6.16/fs/ext2/ialloc.c +@@ -18,6 +18,8 @@ + #include <linux/backing-dev.h> + #include <linux/buffer_head.h> + #include <linux/random.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vs_tag.h> + #include "ext2.h" + #include "xattr.h" + #include "acl.h" +@@ -126,6 +128,7 @@ void ext2_free_inode (struct inode * ino + ext2_xattr_delete_inode(inode); + DQUOT_FREE_INODE(inode); + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + } + + es = EXT2_SB(sb)->s_es; +@@ -465,6 +468,11 @@ struct inode *ext2_new_inode(struct inod + if (!inode) + return ERR_PTR(-ENOMEM); + ++ inode->i_tag = dx_current_fstag(sb); ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ err = -ENOSPC; ++ goto fail_dlim; ++ } + ei = EXT2_I(inode); + sbi = EXT2_SB(sb); + es = sbi->s_es; +@@ -579,7 +587,8 @@ got: + inode->i_blocks = 0; + inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; + memset(ei->i_data, 0, sizeof(ei->i_data)); +- ei->i_flags = EXT2_I(dir)->i_flags & ~EXT2_BTREE_FL; ++ ei->i_flags = EXT2_I(dir)->i_flags & ++ ~(EXT2_BTREE_FL|EXT2_IUNLINK_FL|EXT2_BARRIER_FL); + if (S_ISLNK(mode)) + ei->i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL); + /* dirsync is only applied to directories */ +@@ -627,12 +636,15 @@ fail_free_drop: + + fail_drop: + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; + iput(inode); + return ERR_PTR(err); + + fail: ++ DLIMIT_FREE_INODE(inode); ++fail_dlim: + make_bad_inode(inode); + iput(inode); + return ERR_PTR(err); +Index: linux-2.6.16/fs/ext2/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/inode.c ++++ linux-2.6.16/fs/ext2/inode.c +@@ -31,6 +31,7 @@ + #include <linux/writeback.h> + #include <linux/buffer_head.h> + #include <linux/mpage.h> ++#include <linux/vserver/tag.h> + #include "ext2.h" + #include "acl.h" + #include "xip.h" +@@ -1054,25 +1055,70 @@ void ext2_set_inode_flags(struct inode * + { + unsigned int flags = EXT2_I(inode)->i_flags; + +- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); ++ inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER | ++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); ++ ++ if (flags & EXT2_IMMUTABLE_FL) ++ inode->i_flags |= S_IMMUTABLE; ++ if (flags & EXT2_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ if (flags & EXT2_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ + if (flags & EXT2_SYNC_FL) + inode->i_flags |= S_SYNC; + if (flags & EXT2_APPEND_FL) + inode->i_flags |= S_APPEND; +- if (flags & EXT2_IMMUTABLE_FL) +- inode->i_flags |= S_IMMUTABLE; + if (flags & EXT2_NOATIME_FL) + inode->i_flags |= S_NOATIME; + if (flags & EXT2_DIRSYNC_FL) + inode->i_flags |= S_DIRSYNC; + } + ++int ext2_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ ++ oldflags = EXT2_I(inode)->i_flags; ++ newflags = oldflags & ~(EXT2_APPEND_FL | ++ EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL | ++ EXT2_BARRIER_FL | EXT2_NOATIME_FL | ++ EXT2_SYNC_FL | EXT2_DIRSYNC_FL); ++ ++ if (IS_APPEND(inode)) ++ newflags |= EXT2_APPEND_FL; ++ if (IS_IMMUTABLE(inode)) ++ newflags |= EXT2_IMMUTABLE_FL; ++ if (IS_IUNLINK(inode)) ++ newflags |= EXT2_IUNLINK_FL; ++ if (IS_BARRIER(inode)) ++ newflags |= EXT2_BARRIER_FL; ++ ++ /* we do not want to copy superblock flags */ ++ if (inode->i_flags & S_NOATIME) ++ newflags |= EXT2_NOATIME_FL; ++ if (inode->i_flags & S_SYNC) ++ newflags |= EXT2_SYNC_FL; ++ if (inode->i_flags & S_DIRSYNC) ++ newflags |= EXT2_DIRSYNC_FL; ++ ++ if (oldflags ^ newflags) { ++ EXT2_I(inode)->i_flags = newflags; ++ inode->i_ctime = CURRENT_TIME; ++ mark_inode_dirty(inode); ++ } ++ ++ return 0; ++} ++ + void ext2_read_inode (struct inode * inode) + { + struct ext2_inode_info *ei = EXT2_I(inode); + ino_t ino = inode->i_ino; + struct buffer_head * bh; + struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh); ++ uid_t uid; ++ gid_t gid; + int n; + + #ifdef CONFIG_EXT2_FS_POSIX_ACL +@@ -1083,12 +1129,17 @@ void ext2_read_inode (struct inode * ino + goto bad_inode; + + inode->i_mode = le16_to_cpu(raw_inode->i_mode); +- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); +- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); ++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); ++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); + if (!(test_opt (inode->i_sb, NO_UID32))) { +- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; +- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; ++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; ++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; + } ++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid); ++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid); ++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, ++ le16_to_cpu(raw_inode->i_raw_tag)); ++ + inode->i_nlink = le16_to_cpu(raw_inode->i_links_count); + inode->i_size = le32_to_cpu(raw_inode->i_size); + inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime); +@@ -1186,8 +1237,8 @@ static int ext2_update_inode(struct inod + struct ext2_inode_info *ei = EXT2_I(inode); + struct super_block *sb = inode->i_sb; + ino_t ino = inode->i_ino; +- uid_t uid = inode->i_uid; +- gid_t gid = inode->i_gid; ++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag); ++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag); + struct buffer_head * bh; + struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh); + int n; +@@ -1222,6 +1273,9 @@ static int ext2_update_inode(struct inod + raw_inode->i_uid_high = 0; + raw_inode->i_gid_high = 0; + } ++#ifdef CONFIG_TAGGING_INTERN ++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag); ++#endif + raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); + raw_inode->i_size = cpu_to_le32(inode->i_size); + raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec); +@@ -1308,7 +1362,8 @@ int ext2_setattr(struct dentry *dentry, + if (error) + return error; + if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) || +- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) { ++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) || ++ (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) { + error = DQUOT_TRANSFER(inode, iattr) ? -EDQUOT : 0; + if (error) + return error; +Index: linux-2.6.16/fs/ext2/ioctl.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/ioctl.c ++++ linux-2.6.16/fs/ext2/ioctl.c +@@ -11,6 +11,7 @@ + #include <linux/capability.h> + #include <linux/time.h> + #include <linux/sched.h> ++#include <linux/mount.h> + #include <asm/current.h> + #include <asm/uaccess.h> + +@@ -30,7 +31,8 @@ int ext2_ioctl (struct inode * inode, st + case EXT2_IOC_SETFLAGS: { + unsigned int oldflags; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +@@ -50,7 +52,9 @@ int ext2_ioctl (struct inode * inode, st + * + * This test looks nicer. Thanks to Pauline Middelink + */ +- if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) { ++ if ((oldflags & EXT2_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & (EXT2_APPEND_FL | ++ EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL))) { + if (!capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + } +@@ -69,7 +73,8 @@ int ext2_ioctl (struct inode * inode, st + case EXT2_IOC_SETVERSION: + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + return -EPERM; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + if (get_user(inode->i_generation, (int __user *) arg)) + return -EFAULT; +Index: linux-2.6.16/fs/ext2/namei.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/namei.c ++++ linux-2.6.16/fs/ext2/namei.c +@@ -31,6 +31,7 @@ + */ + + #include <linux/pagemap.h> ++#include <linux/vserver/tag.h> + #include "ext2.h" + #include "xattr.h" + #include "acl.h" +@@ -82,6 +83,7 @@ static struct dentry *ext2_lookup(struct + inode = iget(dir->i_sb, ino); + if (!inode) + return ERR_PTR(-EACCES); ++ dx_propagate_tag(nd, inode); + } + return d_splice_alias(inode, dentry); + } +@@ -407,6 +409,7 @@ struct inode_operations ext2_dir_inode_o + #endif + .setattr = ext2_setattr, + .permission = ext2_permission, ++ .sync_flags = ext2_sync_flags, + }; + + struct inode_operations ext2_special_inode_operations = { +@@ -418,4 +421,5 @@ struct inode_operations ext2_special_ino + #endif + .setattr = ext2_setattr, + .permission = ext2_permission, ++ .sync_flags = ext2_sync_flags, + }; +Index: linux-2.6.16/fs/ext2/super.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/super.c ++++ linux-2.6.16/fs/ext2/super.c +@@ -230,8 +230,8 @@ static int ext2_show_options(struct seq_ + } + + #ifdef CONFIG_QUOTA +-static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data, size_t len, loff_t off); +-static ssize_t ext2_quota_write(struct super_block *sb, int type, const char *data, size_t len, loff_t off); ++static ssize_t ext2_quota_read(struct dqhash *hash, int type, char *data, size_t len, loff_t off); ++static ssize_t ext2_quota_write(struct dqhash *hash, int type, const char *data, size_t len, loff_t off); + #endif + + static struct super_operations ext2_sops = { +@@ -289,7 +289,7 @@ enum { + Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug, + Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr, + Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota, +- Opt_usrquota, Opt_grpquota ++ Opt_usrquota, Opt_grpquota, Opt_tag, Opt_notag, Opt_tagid + }; + + static match_table_t tokens = { +@@ -317,6 +317,10 @@ static match_table_t tokens = { + {Opt_acl, "acl"}, + {Opt_noacl, "noacl"}, + {Opt_xip, "xip"}, ++ {Opt_tag, "tag"}, ++ {Opt_notag, "notag"}, ++ {Opt_tagid, "tagid=%u"}, ++ {Opt_tag, "tagxid"}, + {Opt_grpquota, "grpquota"}, + {Opt_ignore, "noquota"}, + {Opt_quota, "quota"}, +@@ -380,6 +384,20 @@ static int parse_options (char * options + case Opt_nouid32: + set_opt (sbi->s_mount_opt, NO_UID32); + break; ++#ifndef CONFIG_TAGGING_NONE ++ case Opt_tag: ++ set_opt (sbi->s_mount_opt, TAGGED); ++ break; ++ case Opt_notag: ++ clear_opt (sbi->s_mount_opt, TAGGED); ++ break; ++#endif ++#ifdef CONFIG_PROPAGATE ++ case Opt_tagid: ++ /* use args[0] */ ++ set_opt (sbi->s_mount_opt, TAGGED); ++ break; ++#endif + case Opt_nocheck: + clear_opt (sbi->s_mount_opt, CHECK); + break; +@@ -681,6 +699,8 @@ static int ext2_fill_super(struct super_ + if (!parse_options ((char *) data, sbi)) + goto failed_mount; + ++ if (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_TAGGED) ++ sb->s_flags |= MS_TAGGED; + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? + MS_POSIXACL : 0); +@@ -990,6 +1010,13 @@ static int ext2_remount (struct super_bl + goto restore_opts; + } + ++ if ((sbi->s_mount_opt & EXT2_MOUNT_TAGGED) && ++ !(sb->s_flags & MS_TAGGED)) { ++ printk("EXT2-fs: %s: tagging not permitted on remount.\n", ++ sb->s_id); ++ return -EINVAL; ++ } ++ + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); + +@@ -1101,10 +1128,11 @@ static struct super_block *ext2_get_sb(s + * acquiring the locks... As quota files are never truncated and quota code + * itself serializes the operations (and noone else should touch the files) + * we don't have to be afraid of races */ +-static ssize_t ext2_quota_read(struct super_block *sb, int type, char *data, ++static ssize_t ext2_quota_read(struct dqhash *hash, int type, char *data, + size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + sector_t blk = off >> EXT2_BLOCK_SIZE_BITS(sb); + int err = 0; + int offset = off & (sb->s_blocksize - 1); +@@ -1145,10 +1173,11 @@ static ssize_t ext2_quota_read(struct su + } + + /* Write to quotafile */ +-static ssize_t ext2_quota_write(struct super_block *sb, int type, ++static ssize_t ext2_quota_write(struct dqhash *hash, int type, + const char *data, size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + sector_t blk = off >> EXT2_BLOCK_SIZE_BITS(sb); + int err = 0; + int offset = off & (sb->s_blocksize - 1); +Index: linux-2.6.16/fs/ext2/symlink.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/symlink.c ++++ linux-2.6.16/fs/ext2/symlink.c +@@ -38,6 +38,7 @@ struct inode_operations ext2_symlink_ino + .listxattr = ext2_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext2_sync_flags, + }; + + struct inode_operations ext2_fast_symlink_inode_operations = { +@@ -49,4 +50,5 @@ struct inode_operations ext2_fast_symlin + .listxattr = ext2_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext2_sync_flags, + }; +Index: linux-2.6.16/fs/ext2/xattr.c +=================================================================== +--- linux-2.6.16.orig/fs/ext2/xattr.c ++++ linux-2.6.16/fs/ext2/xattr.c +@@ -60,6 +60,7 @@ + #include <linux/mbcache.h> + #include <linux/quotaops.h> + #include <linux/rwsem.h> ++#include <linux/vs_dlimit.h> + #include "ext2.h" + #include "xattr.h" + #include "acl.h" +@@ -645,8 +646,12 @@ ext2_xattr_set2(struct inode *inode, str + the inode. */ + ea_bdebug(new_bh, "reusing block"); + ++ error = -ENOSPC; ++ if (DLIMIT_ALLOC_BLOCK(inode, 1)) ++ goto cleanup; + error = -EDQUOT; + if (DQUOT_ALLOC_BLOCK(inode, 1)) { ++ DLIMIT_FREE_BLOCK(inode, 1); + unlock_buffer(new_bh); + goto cleanup; + } +@@ -740,6 +745,7 @@ ext2_xattr_set2(struct inode *inode, str + le32_to_cpu(HDR(old_bh)->h_refcount) - 1); + if (ce) + mb_cache_entry_release(ce); ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK(inode, 1); + mark_buffer_dirty(old_bh); + ea_bdebug(old_bh, "refcount now=%d", +@@ -804,6 +810,7 @@ ext2_xattr_delete_inode(struct inode *in + mark_buffer_dirty(bh); + if (IS_SYNC(inode)) + sync_dirty_buffer(bh); ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK(inode, 1); + } + EXT2_I(inode)->i_file_acl = 0; +Index: linux-2.6.16/fs/ext3/balloc.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/balloc.c ++++ linux-2.6.16/fs/ext3/balloc.c +@@ -20,6 +20,8 @@ + #include <linux/ext3_jbd.h> + #include <linux/quotaops.h> + #include <linux/buffer_head.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vs_tag.h> + + /* + * balloc.c contains the blocks allocation and deallocation routines +@@ -504,8 +506,10 @@ void ext3_free_blocks(handle_t *handle, + return; + } + ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks); +- if (dquot_freed_blocks) ++ if (dquot_freed_blocks) { ++ DLIMIT_FREE_BLOCK(inode, dquot_freed_blocks); + DQUOT_FREE_BLOCK(inode, dquot_freed_blocks); ++ } + return; + } + +@@ -1116,18 +1120,32 @@ out: + return ret; + } + +-static int ext3_has_free_blocks(struct ext3_sb_info *sbi) ++static int ext3_has_free_blocks(struct super_block *sb) + { +- int free_blocks, root_blocks; ++ struct ext3_sb_info *sbi = EXT3_SB(sb); ++ int free_blocks, root_blocks, cond; + + 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) && ++ ++ vxdprintk(VXD_CBIT(dlim, 3), ++ "ext3_has_free_blocks(%p): free=%u, root=%u", ++ sb, free_blocks, root_blocks); ++ ++ DLIMIT_ADJUST_BLOCK(sb, dx_current_tag(), &free_blocks, &root_blocks); ++ ++ cond = (free_blocks < root_blocks + 1 && ++ !capable(CAP_SYS_RESOURCE) && + sbi->s_resuid != current->fsuid && +- (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { +- return 0; +- } +- return 1; ++ (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))); ++ ++ vxdprintk(VXD_CBIT(dlim, 3), ++ "ext3_has_free_blocks(%p): %u<%u+1, %c, %u!=%u r=%d", ++ sb, free_blocks, root_blocks, ++ !capable(CAP_SYS_RESOURCE)?'1':'0', ++ sbi->s_resuid, current->fsuid, cond?0:1); ++ ++ return (cond ? 0 : 1); + } + + /* +@@ -1138,7 +1156,7 @@ static int ext3_has_free_blocks(struct e + */ + int ext3_should_retry_alloc(struct super_block *sb, int *retries) + { +- if (!ext3_has_free_blocks(EXT3_SB(sb)) || (*retries)++ > 3) ++ if (!ext3_has_free_blocks(sb) || (*retries)++ > 3) + return 0; + + jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id); +@@ -1193,6 +1211,8 @@ int ext3_new_block(handle_t *handle, str + *errp = -EDQUOT; + return 0; + } ++ if (DLIMIT_ALLOC_BLOCK(inode, 1)) ++ goto out_dlimit; + + sbi = EXT3_SB(sb); + es = EXT3_SB(sb)->s_es; +@@ -1209,7 +1229,7 @@ int ext3_new_block(handle_t *handle, str + if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0)) + my_rsv = &block_i->rsv_window_node; + +- if (!ext3_has_free_blocks(sbi)) { ++ if (!ext3_has_free_blocks(sb)) { + *errp = -ENOSPC; + goto out; + } +@@ -1393,6 +1413,9 @@ allocated: + io_error: + *errp = -EIO; + out: ++ if (!performed_allocation) ++ DLIMIT_FREE_BLOCK(inode, 1); ++out_dlimit: + if (fatal) { + *errp = fatal; + ext3_std_error(sb, fatal); +Index: linux-2.6.16/fs/ext3/file.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/file.c ++++ linux-2.6.16/fs/ext3/file.c +@@ -119,6 +119,7 @@ struct file_operations ext3_file_operati + .release = ext3_release_file, + .fsync = ext3_sync_file, + .sendfile = generic_file_sendfile, ++ .sendpage = generic_file_sendpage, + }; + + struct inode_operations ext3_file_inode_operations = { +@@ -131,5 +132,6 @@ struct inode_operations ext3_file_inode_ + .removexattr = generic_removexattr, + #endif + .permission = ext3_permission, ++ .sync_flags = ext3_sync_flags, + }; + +Index: linux-2.6.16/fs/ext3/ialloc.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/ialloc.c ++++ linux-2.6.16/fs/ext3/ialloc.c +@@ -23,6 +23,8 @@ + #include <linux/buffer_head.h> + #include <linux/random.h> + #include <linux/bitops.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vs_tag.h> + + #include <asm/byteorder.h> + +@@ -127,6 +129,7 @@ void ext3_free_inode (handle_t *handle, + ext3_xattr_delete_inode(handle, inode); + DQUOT_FREE_INODE(inode); + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + + is_directory = S_ISDIR(inode->i_mode); + +@@ -443,6 +446,12 @@ struct inode *ext3_new_inode(handle_t *h + inode = new_inode(sb); + if (!inode) + return ERR_PTR(-ENOMEM); ++ ++ inode->i_tag = dx_current_fstag(sb); ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ err = -ENOSPC; ++ goto out_dlimit; ++ } + ei = EXT3_I(inode); + + sbi = EXT3_SB(sb); +@@ -565,7 +574,8 @@ got: + ei->i_dir_start_lookup = 0; + ei->i_disksize = 0; + +- ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL; ++ ei->i_flags = EXT3_I(dir)->i_flags & ++ ~(EXT3_INDEX_FL|EXT3_IUNLINK_FL|EXT3_BARRIER_FL); + if (S_ISLNK(mode)) + ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL); + /* dirsync only applies to directories */ +@@ -620,6 +630,8 @@ got: + fail: + ext3_std_error(sb, err); + out: ++ DLIMIT_FREE_INODE(inode); ++out_dlimit: + iput(inode); + ret = ERR_PTR(err); + really_out: +@@ -631,6 +643,7 @@ fail_free_drop: + + fail_drop: + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; + iput(inode); +Index: linux-2.6.16/fs/ext3/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/inode.c ++++ linux-2.6.16/fs/ext3/inode.c +@@ -36,6 +36,7 @@ + #include <linux/writeback.h> + #include <linux/mpage.h> + #include <linux/uio.h> ++#include <linux/vserver/tag.h> + #include "xattr.h" + #include "acl.h" + +@@ -2422,19 +2423,77 @@ void ext3_set_inode_flags(struct inode * + { + unsigned int flags = EXT3_I(inode)->i_flags; + +- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); ++ inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER | ++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); ++ ++ if (flags & EXT3_IMMUTABLE_FL) ++ inode->i_flags |= S_IMMUTABLE; ++ if (flags & EXT3_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ if (flags & EXT3_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ + if (flags & EXT3_SYNC_FL) + inode->i_flags |= S_SYNC; + if (flags & EXT3_APPEND_FL) + inode->i_flags |= S_APPEND; +- if (flags & EXT3_IMMUTABLE_FL) +- inode->i_flags |= S_IMMUTABLE; + if (flags & EXT3_NOATIME_FL) + inode->i_flags |= S_NOATIME; + if (flags & EXT3_DIRSYNC_FL) + inode->i_flags |= S_DIRSYNC; + } + ++int ext3_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ int err = 0; ++ ++ oldflags = EXT3_I(inode)->i_flags; ++ newflags = oldflags & ~(EXT3_APPEND_FL | ++ EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL | ++ EXT3_BARRIER_FL | EXT3_NOATIME_FL | ++ EXT3_SYNC_FL | EXT3_DIRSYNC_FL); ++ ++ if (IS_APPEND(inode)) ++ newflags |= EXT3_APPEND_FL; ++ if (IS_IMMUTABLE(inode)) ++ newflags |= EXT3_IMMUTABLE_FL; ++ if (IS_IUNLINK(inode)) ++ newflags |= EXT3_IUNLINK_FL; ++ if (IS_BARRIER(inode)) ++ newflags |= EXT3_BARRIER_FL; ++ ++ /* we do not want to copy superblock flags */ ++ if (inode->i_flags & S_NOATIME) ++ newflags |= EXT3_NOATIME_FL; ++ if (inode->i_flags & S_SYNC) ++ newflags |= EXT3_SYNC_FL; ++ if (inode->i_flags & S_DIRSYNC) ++ newflags |= EXT3_DIRSYNC_FL; ++ ++ if (oldflags ^ newflags) { ++ handle_t *handle; ++ struct ext3_iloc iloc; ++ ++ handle = ext3_journal_start(inode, 1); ++ if (IS_ERR(handle)) ++ return PTR_ERR(handle); ++ if (IS_SYNC(inode)) ++ handle->h_sync = 1; ++ err = ext3_reserve_inode_write(handle, inode, &iloc); ++ if (err) ++ goto flags_err; ++ ++ EXT3_I(inode)->i_flags = newflags; ++ inode->i_ctime = CURRENT_TIME; ++ ++ err = ext3_mark_iloc_dirty(handle, inode, &iloc); ++ flags_err: ++ ext3_journal_stop(handle); ++ } ++ return err; ++} ++ + void ext3_read_inode(struct inode * inode) + { + struct ext3_iloc iloc; +@@ -2442,6 +2501,8 @@ void ext3_read_inode(struct inode * inod + struct ext3_inode_info *ei = EXT3_I(inode); + struct buffer_head *bh; + int block; ++ uid_t uid; ++ gid_t gid; + + #ifdef CONFIG_EXT3_FS_POSIX_ACL + ei->i_acl = EXT3_ACL_NOT_CACHED; +@@ -2454,12 +2515,17 @@ void ext3_read_inode(struct inode * inod + bh = iloc.bh; + raw_inode = ext3_raw_inode(&iloc); + inode->i_mode = le16_to_cpu(raw_inode->i_mode); +- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); +- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); ++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); ++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); + if(!(test_opt (inode->i_sb, NO_UID32))) { +- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; +- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; ++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; ++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; + } ++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid); ++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid); ++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, ++ le16_to_cpu(raw_inode->i_raw_tag)); ++ + inode->i_nlink = le16_to_cpu(raw_inode->i_links_count); + inode->i_size = le32_to_cpu(raw_inode->i_size); + inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime); +@@ -2586,6 +2652,8 @@ static int ext3_do_update_inode(handle_t + struct ext3_inode *raw_inode = ext3_raw_inode(iloc); + struct ext3_inode_info *ei = EXT3_I(inode); + struct buffer_head *bh = iloc->bh; ++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag); ++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag); + int err = 0, rc, block; + + /* For fields not not tracking in the in-memory inode, +@@ -2595,29 +2663,32 @@ static int ext3_do_update_inode(handle_t + + raw_inode->i_mode = cpu_to_le16(inode->i_mode); + if(!(test_opt(inode->i_sb, NO_UID32))) { +- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid)); +- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid)); ++ raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid)); ++ raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid)); + /* + * Fix up interoperability with old kernels. Otherwise, old inodes get + * re-used with the upper 16 bits of the uid/gid intact + */ + if(!ei->i_dtime) { + raw_inode->i_uid_high = +- cpu_to_le16(high_16_bits(inode->i_uid)); ++ cpu_to_le16(high_16_bits(uid)); + raw_inode->i_gid_high = +- cpu_to_le16(high_16_bits(inode->i_gid)); ++ cpu_to_le16(high_16_bits(gid)); + } else { + raw_inode->i_uid_high = 0; + raw_inode->i_gid_high = 0; + } + } else { + raw_inode->i_uid_low = +- cpu_to_le16(fs_high2lowuid(inode->i_uid)); ++ cpu_to_le16(fs_high2lowuid(uid)); + raw_inode->i_gid_low = +- cpu_to_le16(fs_high2lowgid(inode->i_gid)); ++ cpu_to_le16(fs_high2lowgid(gid)); + raw_inode->i_uid_high = 0; + raw_inode->i_gid_high = 0; + } ++#ifdef CONFIG_TAGGING_INTERN ++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag); ++#endif + raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); + raw_inode->i_size = cpu_to_le32(ei->i_disksize); + raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec); +@@ -2770,7 +2841,8 @@ int ext3_setattr(struct dentry *dentry, + return error; + + if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || +- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { ++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) || ++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) { + handle_t *handle; + + /* (user+group)*(old+new) structure, inode write (sb, +@@ -2792,6 +2864,8 @@ int ext3_setattr(struct dentry *dentry, + inode->i_uid = attr->ia_uid; + if (attr->ia_valid & ATTR_GID) + inode->i_gid = attr->ia_gid; ++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode)) ++ inode->i_tag = attr->ia_tag; + error = ext3_mark_inode_dirty(handle, inode); + ext3_journal_stop(handle); + } +Index: linux-2.6.16/fs/ext3/ioctl.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/ioctl.c ++++ linux-2.6.16/fs/ext3/ioctl.c +@@ -8,11 +8,13 @@ + */ + + #include <linux/fs.h> ++#include <linux/mount.h> + #include <linux/jbd.h> + #include <linux/capability.h> + #include <linux/ext3_fs.h> + #include <linux/ext3_jbd.h> + #include <linux/time.h> ++#include <linux/vserver/tag.h> + #include <asm/uaccess.h> + + +@@ -36,7 +38,8 @@ int ext3_ioctl (struct inode * inode, st + unsigned int oldflags; + unsigned int jflag; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +@@ -59,7 +62,9 @@ int ext3_ioctl (struct inode * inode, st + * + * This test looks nicer. Thanks to Pauline Middelink + */ +- if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) { ++ if ((oldflags & EXT3_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & (EXT3_APPEND_FL | ++ EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL))) { + if (!capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + } +@@ -112,7 +117,8 @@ flags_err: + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + return -EPERM; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + if (get_user(generation, (int __user *) arg)) + return -EFAULT; +@@ -166,7 +172,8 @@ flags_err: + if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode)) + return -ENOTTY; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +@@ -201,7 +208,8 @@ flags_err: + if (!capable(CAP_SYS_RESOURCE)) + return -EPERM; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if (get_user(n_blocks_count, (__u32 __user *)arg)) +@@ -222,7 +230,8 @@ flags_err: + if (!capable(CAP_SYS_RESOURCE)) + return -EPERM; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg, +@@ -237,6 +246,38 @@ flags_err: + return err; + } + ++#if defined(CONFIG_VSERVER_LEGACY) && !defined(CONFIG_TAGGING_NONE) ++ case EXT3_IOC_SETTAG: { ++ handle_t *handle; ++ struct ext3_iloc iloc; ++ int tag; ++ int err; ++ ++ /* fixme: if stealth, return -ENOTTY */ ++ if (!capable(CAP_CONTEXT)) ++ return -EPERM; ++ if (IS_RDONLY(inode)) ++ return -EROFS; ++ if (!(inode->i_sb->s_flags & MS_TAGGED)) ++ return -ENOSYS; ++ if (get_user(tag, (int *) arg)) ++ return -EFAULT; ++ ++ handle = ext3_journal_start(inode, 1); ++ if (IS_ERR(handle)) ++ return PTR_ERR(handle); ++ err = ext3_reserve_inode_write(handle, inode, &iloc); ++ if (err) ++ return err; ++ ++ inode->i_tag = (tag & 0xFFFF); ++ inode->i_ctime = CURRENT_TIME; ++ ++ err = ext3_mark_iloc_dirty(handle, inode, &iloc); ++ ext3_journal_stop(handle); ++ return err; ++ } ++#endif + + default: + return -ENOTTY; +Index: linux-2.6.16/fs/ext3/namei.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/namei.c ++++ linux-2.6.16/fs/ext3/namei.c +@@ -36,6 +36,7 @@ + #include <linux/quotaops.h> + #include <linux/buffer_head.h> + #include <linux/smp_lock.h> ++#include <linux/vserver/tag.h> + + #include "namei.h" + #include "xattr.h" +@@ -1004,6 +1005,7 @@ static struct dentry *ext3_lookup(struct + + if (!inode) + return ERR_PTR(-EACCES); ++ dx_propagate_tag(nd, inode); + } + return d_splice_alias(inode, dentry); + } +@@ -2373,6 +2375,7 @@ struct inode_operations ext3_dir_inode_o + .removexattr = generic_removexattr, + #endif + .permission = ext3_permission, ++ .sync_flags = ext3_sync_flags, + }; + + struct inode_operations ext3_special_inode_operations = { +@@ -2384,4 +2387,5 @@ struct inode_operations ext3_special_ino + .removexattr = generic_removexattr, + #endif + .permission = ext3_permission, ++ .sync_flags = ext3_sync_flags, + }; +Index: linux-2.6.16/fs/ext3/super.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/super.c ++++ linux-2.6.16/fs/ext3/super.c +@@ -563,12 +563,12 @@ static int ext3_write_dquot(struct dquot + static int ext3_acquire_dquot(struct dquot *dquot); + static int ext3_release_dquot(struct dquot *dquot); + static int ext3_mark_dquot_dirty(struct dquot *dquot); +-static int ext3_write_info(struct super_block *sb, int type); +-static int ext3_quota_on(struct super_block *sb, int type, int format_id, char *path); +-static int ext3_quota_on_mount(struct super_block *sb, int type); +-static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, ++static int ext3_write_info(struct dqhash *hash, int type); ++static int ext3_quota_on(struct dqhash *hash, int type, int format_id, char *path); ++static int ext3_quota_on_mount(struct dqhash *hash, int type); ++static ssize_t ext3_quota_read(struct dqhash *hash, int type, char *data, + size_t len, loff_t off); +-static ssize_t ext3_quota_write(struct super_block *sb, int type, ++static ssize_t ext3_quota_write(struct dqhash *hash, int type, + const char *data, size_t len, loff_t off); + + static struct dquot_operations ext3_quota_operations = { +@@ -634,7 +634,7 @@ enum { + Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota, + Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota, + Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota, +- Opt_grpquota ++ Opt_grpquota, Opt_tag, Opt_notag, Opt_tagid + }; + + static match_table_t tokens = { +@@ -683,6 +683,10 @@ static match_table_t tokens = { + {Opt_quota, "quota"}, + {Opt_usrquota, "usrquota"}, + {Opt_barrier, "barrier=%u"}, ++ {Opt_tag, "tag"}, ++ {Opt_notag, "notag"}, ++ {Opt_tagid, "tagid=%u"}, ++ {Opt_tag, "tagxid"}, + {Opt_err, NULL}, + {Opt_resize, "resize"}, + }; +@@ -775,6 +779,20 @@ static int parse_options (char *options, + case Opt_nouid32: + set_opt (sbi->s_mount_opt, NO_UID32); + break; ++#ifndef CONFIG_TAGGING_NONE ++ case Opt_tag: ++ set_opt (sbi->s_mount_opt, TAGGED); ++ break; ++ case Opt_notag: ++ clear_opt (sbi->s_mount_opt, TAGGED); ++ break; ++#endif ++#ifdef CONFIG_PROPAGATE ++ case Opt_tagid: ++ /* use args[0] */ ++ set_opt (sbi->s_mount_opt, TAGGED); ++ break; ++#endif + case Opt_nocheck: + clear_opt (sbi->s_mount_opt, CHECK); + break; +@@ -893,7 +911,7 @@ static int parse_options (char *options, + case Opt_grpjquota: + qtype = GRPQUOTA; + set_qf_name: +- if (sb_any_quota_enabled(sb)) { ++ if (dqh_any_quota_enabled(sb->s_dqh)) { + printk(KERN_ERR + "EXT3-fs: Cannot change journalled " + "quota options when quota turned on.\n"); +@@ -931,7 +949,7 @@ set_qf_name: + case Opt_offgrpjquota: + qtype = GRPQUOTA; + clear_qf_name: +- if (sb_any_quota_enabled(sb)) { ++ if (dqh_any_quota_enabled(sb->s_dqh)) { + printk(KERN_ERR "EXT3-fs: Cannot change " + "journalled quota options when " + "quota turned on.\n"); +@@ -959,7 +977,7 @@ clear_qf_name: + set_opt(sbi->s_mount_opt, GRPQUOTA); + break; + case Opt_noquota: +- if (sb_any_quota_enabled(sb)) { ++ if (dqh_any_quota_enabled(sb->s_dqh)) { + printk(KERN_ERR "EXT3-fs: Cannot change quota " + "options when quota turned on.\n"); + return 0; +@@ -1231,7 +1249,7 @@ static void ext3_orphan_cleanup (struct + /* Turn on quotas so that they are updated correctly */ + for (i = 0; i < MAXQUOTAS; i++) { + if (EXT3_SB(sb)->s_qf_names[i]) { +- int ret = ext3_quota_on_mount(sb, i); ++ int ret = ext3_quota_on_mount(sb->s_dqh, i); + if (ret < 0) + printk(KERN_ERR + "EXT3-fs: Cannot turn on journalled " +@@ -1281,8 +1299,8 @@ static void ext3_orphan_cleanup (struct + #ifdef CONFIG_QUOTA + /* Turn quotas off */ + for (i = 0; i < MAXQUOTAS; i++) { +- if (sb_dqopt(sb)->files[i]) +- vfs_quota_off(sb, i); ++ if (dqh_dqopt(sb->s_dqh)->files[i]) ++ vfs_quota_off(sb->s_dqh, i); + } + #endif + sb->s_flags = s_flags; /* Restore MS_RDONLY status */ +@@ -1429,6 +1447,9 @@ static int ext3_fill_super (struct super + NULL, 0)) + goto failed_mount; + ++ if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAGGED) ++ sb->s_flags |= MS_TAGGED; ++ + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); + +@@ -1620,8 +1641,8 @@ static int ext3_fill_super (struct super + sb->s_export_op = &ext3_export_ops; + sb->s_xattr = ext3_xattr_handlers; + #ifdef CONFIG_QUOTA +- sb->s_qcop = &ext3_qctl_operations; +- sb->dq_op = &ext3_quota_operations; ++ sb->s_dqh->dqh_qop = &ext3_quota_operations; ++ sb->s_dqh->dqh_qcop = &ext3_qctl_operations; + #endif + INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ + +@@ -2238,6 +2259,12 @@ static int ext3_remount (struct super_bl + + if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) + ext3_abort(sb, __FUNCTION__, "Abort forced by user"); ++ if ((sbi->s_mount_opt & EXT3_MOUNT_TAGGED) && ++ !(sb->s_flags & MS_TAGGED)) { ++ printk("EXT3-fs: %s: tagging not permitted on remount.\n", ++ sb->s_id); ++ return -EINVAL; ++ } + + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); +@@ -2391,7 +2418,7 @@ static int ext3_statfs (struct super_blo + + static inline struct inode *dquot_to_inode(struct dquot *dquot) + { +- return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type]; ++ return dqh_dqopt(dquot->dq_dqh)->files[dquot->dq_type]; + } + + static int ext3_dquot_initialize(struct inode *inode, int type) +@@ -2434,7 +2461,7 @@ static int ext3_write_dquot(struct dquot + + inode = dquot_to_inode(dquot); + handle = ext3_journal_start(inode, +- EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); ++ EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (IS_ERR(handle)) + return PTR_ERR(handle); + ret = dquot_commit(dquot); +@@ -2450,7 +2477,7 @@ static int ext3_acquire_dquot(struct dqu + handle_t *handle; + + handle = ext3_journal_start(dquot_to_inode(dquot), +- EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb)); ++ EXT3_QUOTA_INIT_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (IS_ERR(handle)) + return PTR_ERR(handle); + ret = dquot_acquire(dquot); +@@ -2466,7 +2493,7 @@ static int ext3_release_dquot(struct dqu + handle_t *handle; + + handle = ext3_journal_start(dquot_to_inode(dquot), +- EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb)); ++ EXT3_QUOTA_DEL_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (IS_ERR(handle)) + return PTR_ERR(handle); + ret = dquot_release(dquot); +@@ -2479,8 +2506,8 @@ static int ext3_release_dquot(struct dqu + static int ext3_mark_dquot_dirty(struct dquot *dquot) + { + /* Are we journalling quotas? */ +- if (EXT3_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] || +- EXT3_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) { ++ if (EXT3_SB(dquot->dq_dqh->dqh_sb)->s_qf_names[USRQUOTA] || ++ EXT3_SB(dquot->dq_dqh->dqh_sb)->s_qf_names[GRPQUOTA]) { + dquot_mark_dquot_dirty(dquot); + return ext3_write_dquot(dquot); + } else { +@@ -2488,8 +2515,9 @@ static int ext3_mark_dquot_dirty(struct + } + } + +-static int ext3_write_info(struct super_block *sb, int type) ++static int ext3_write_info(struct dqhash *hash, int type) + { ++ struct super_block *sb = hash->dqh_sb; + int ret, err; + handle_t *handle; + +@@ -2497,7 +2525,7 @@ static int ext3_write_info(struct super_ + handle = ext3_journal_start(sb->s_root->d_inode, 2); + if (IS_ERR(handle)) + return PTR_ERR(handle); +- ret = dquot_commit_info(sb, type); ++ ret = dquot_commit_info(hash, type); + err = ext3_journal_stop(handle); + if (!ret) + ret = err; +@@ -2508,18 +2536,20 @@ static int ext3_write_info(struct super_ + * Turn on quotas during mount time - we need to find + * the quota file and such... + */ +-static int ext3_quota_on_mount(struct super_block *sb, int type) ++static int ext3_quota_on_mount(struct dqhash *hash, int type) + { +- return vfs_quota_on_mount(sb, EXT3_SB(sb)->s_qf_names[type], +- EXT3_SB(sb)->s_jquota_fmt, type); ++ return vfs_quota_on_mount(hash, ++ EXT3_SB(hash->dqh_sb)->s_qf_names[type], ++ EXT3_SB(hash->dqh_sb)->s_jquota_fmt, type); + } + + /* + * Standard function to be called on quota_on + */ +-static int ext3_quota_on(struct super_block *sb, int type, int format_id, ++static int ext3_quota_on(struct dqhash *hash, int type, int format_id, + char *path) + { ++ struct super_block *sb = hash->dqh_sb; + int err; + struct nameidata nd; + +@@ -2528,7 +2558,7 @@ static int ext3_quota_on(struct super_bl + /* Not journalling quota? */ + if (!EXT3_SB(sb)->s_qf_names[USRQUOTA] && + !EXT3_SB(sb)->s_qf_names[GRPQUOTA]) +- return vfs_quota_on(sb, type, format_id, path); ++ return vfs_quota_on(hash, type, format_id, path); + err = path_lookup(path, LOOKUP_FOLLOW, &nd); + if (err) + return err; +@@ -2543,17 +2573,18 @@ static int ext3_quota_on(struct super_bl + "EXT3-fs: Quota file not on filesystem root. " + "Journalled quota will not work.\n"); + path_release(&nd); +- return vfs_quota_on(sb, type, format_id, path); ++ return vfs_quota_on(hash, type, format_id, path); + } + + /* Read data from quotafile - avoid pagecache and such because we cannot afford + * acquiring the locks... As quota files are never truncated and quota code + * itself serializes the operations (and noone else should touch the files) + * we don't have to be afraid of races */ +-static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data, ++static ssize_t ext3_quota_read(struct dqhash *hash, int type, char *data, + size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb); + int err = 0; + int offset = off & (sb->s_blocksize - 1); +@@ -2588,10 +2619,11 @@ static ssize_t ext3_quota_read(struct su + + /* Write to quotafile (we know the transaction is already started and has + * enough credits) */ +-static ssize_t ext3_quota_write(struct super_block *sb, int type, ++static ssize_t ext3_quota_write(struct dqhash *hash, int type, + const char *data, size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb); + int err = 0; + int offset = off & (sb->s_blocksize - 1); +Index: linux-2.6.16/fs/ext3/symlink.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/symlink.c ++++ linux-2.6.16/fs/ext3/symlink.c +@@ -40,6 +40,7 @@ struct inode_operations ext3_symlink_ino + .listxattr = ext3_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext3_sync_flags, + }; + + struct inode_operations ext3_fast_symlink_inode_operations = { +@@ -51,4 +52,5 @@ struct inode_operations ext3_fast_symlin + .listxattr = ext3_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext3_sync_flags, + }; +Index: linux-2.6.16/fs/ext3/xattr.c +=================================================================== +--- linux-2.6.16.orig/fs/ext3/xattr.c ++++ linux-2.6.16/fs/ext3/xattr.c +@@ -58,6 +58,7 @@ + #include <linux/mbcache.h> + #include <linux/quotaops.h> + #include <linux/rwsem.h> ++#include <linux/vs_dlimit.h> + #include "xattr.h" + #include "acl.h" + +@@ -495,6 +496,7 @@ ext3_xattr_release_block(handle_t *handl + ext3_journal_dirty_metadata(handle, bh); + if (IS_SYNC(inode)) + handle->h_sync = 1; ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK(inode, 1); + unlock_buffer(bh); + ea_bdebug(bh, "refcount now=%d; releasing", +@@ -763,11 +765,14 @@ inserted: + if (new_bh == bs->bh) + ea_bdebug(new_bh, "keeping"); + else { ++ error = -ENOSPC; ++ if (DLIMIT_ALLOC_BLOCK(inode, 1)) ++ goto cleanup; + /* The old block is released after updating + the inode. */ + error = -EDQUOT; + if (DQUOT_ALLOC_BLOCK(inode, 1)) +- goto cleanup; ++ goto cleanup_dlimit; + error = ext3_journal_get_write_access(handle, + new_bh); + if (error) +@@ -843,6 +848,8 @@ cleanup: + + cleanup_dquot: + DQUOT_FREE_BLOCK(inode, 1); ++cleanup_dlimit: ++ DLIMIT_FREE_BLOCK(inode, 1); + goto cleanup; + + bad_block: +Index: linux-2.6.16/fs/fcntl.c +=================================================================== +--- linux-2.6.16.orig/fs/fcntl.c ++++ linux-2.6.16/fs/fcntl.c +@@ -18,6 +18,7 @@ + #include <linux/ptrace.h> + #include <linux/signal.h> + #include <linux/rcupdate.h> ++#include <linux/vs_limit.h> + + #include <asm/poll.h> + #include <asm/siginfo.h> +@@ -85,6 +86,8 @@ repeat: + error = -EMFILE; + if (newfd >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur) + goto out; ++ if (!vx_files_avail(1)) ++ goto out; + + error = expand_files(files, newfd); + if (error < 0) +@@ -126,6 +129,7 @@ static int dupfd(struct file *file, unsi + FD_SET(fd, fdt->open_fds); + FD_CLR(fd, fdt->close_on_exec); + spin_unlock(&files->file_lock); ++ vx_openfd_inc(fd); + fd_install(fd, file); + } else { + spin_unlock(&files->file_lock); +@@ -178,6 +182,9 @@ asmlinkage long sys_dup2(unsigned int ol + + if (tofree) + filp_close(tofree, files); ++ else ++ vx_openfd_inc(newfd); /* fd was unused */ ++ + err = newfd; + out: + return err; +@@ -481,7 +488,7 @@ void send_sigio(struct fown_struct *fown + + read_lock(&tasklist_lock); + if (pid > 0) { +- p = find_task_by_pid(pid); ++ p = find_task_by_real_pid(pid); + if (p) { + send_sigio_to_task(p, fown, fd, band); + } +@@ -516,7 +523,7 @@ int send_sigurg(struct fown_struct *fown + + read_lock(&tasklist_lock); + if (pid > 0) { +- p = find_task_by_pid(pid); ++ p = find_task_by_real_pid(pid); + if (p) { + send_sigurg_to_task(p, fown); + } +Index: linux-2.6.16/fs/file_table.c +=================================================================== +--- linux-2.6.16.orig/fs/file_table.c ++++ linux-2.6.16/fs/file_table.c +@@ -22,6 +22,8 @@ + #include <linux/fsnotify.h> + #include <linux/sysctl.h> + #include <linux/percpu_counter.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_context.h> + + #include <asm/atomic.h> + +@@ -119,6 +121,8 @@ struct file *get_empty_filp(void) + rwlock_init(&f->f_owner.lock); + /* f->f_version: 0 */ + INIT_LIST_HEAD(&f->f_u.fu_list); ++ f->f_xid = vx_current_xid(); ++ vx_files_inc(f); + return f; + + over: +@@ -173,6 +177,8 @@ void fastcall __fput(struct file *file) + fops_put(file->f_op); + if (file->f_mode & FMODE_WRITE) + put_write_access(inode); ++ vx_files_dec(file); ++ file->f_xid = 0; + file_kill(file); + file->f_dentry = NULL; + file->f_vfsmnt = NULL; +@@ -238,6 +244,8 @@ void put_filp(struct file *file) + { + if (atomic_dec_and_test(&file->f_count)) { + security_file_free(file); ++ vx_files_dec(file); ++ file->f_xid = 0; + file_kill(file); + file_free(file); + } +Index: linux-2.6.16/fs/hfsplus/ioctl.c +=================================================================== +--- linux-2.6.16.orig/fs/hfsplus/ioctl.c ++++ linux-2.6.16/fs/hfsplus/ioctl.c +@@ -16,6 +16,7 @@ + #include <linux/fs.h> + #include <linux/sched.h> + #include <linux/xattr.h> ++#include <linux/mount.h> + #include <asm/uaccess.h> + #include "hfsplus_fs.h" + +@@ -35,7 +36,8 @@ int hfsplus_ioctl(struct inode *inode, s + flags |= EXT2_FLAG_NODUMP; /* EXT2_NODUMP_FL */ + return put_user(flags, (int __user *)arg); + case HFSPLUS_IOC_EXT2_SETFLAGS: { +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +Index: linux-2.6.16/fs/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/inode.c ++++ linux-2.6.16/fs/inode.c +@@ -116,6 +116,9 @@ static struct inode *alloc_inode(struct + struct address_space * const mapping = &inode->i_data; + + inode->i_sb = sb; ++ ++ /* essential because of inode slab reuse */ ++ inode->i_tag = 0; + inode->i_blkbits = sb->s_blocksize_bits; + inode->i_flags = 0; + atomic_set(&inode->i_count, 1); +@@ -128,6 +131,7 @@ static struct inode *alloc_inode(struct + inode->i_bytes = 0; + inode->i_generation = 0; + #ifdef CONFIG_QUOTA ++ inode->i_dqh = dqhget(sb->s_dqh); + memset(&inode->i_dquot, 0, sizeof(inode->i_dquot)); + #endif + inode->i_pipe = NULL; +@@ -175,6 +179,8 @@ void destroy_inode(struct inode *inode) + if (inode_has_buffers(inode)) + BUG(); + security_inode_free(inode); ++ if (dqhash_valid(inode->i_dqh)) ++ dqhput(inode->i_dqh); + if (inode->i_sb->s_op->destroy_inode) + inode->i_sb->s_op->destroy_inode(inode); + else +@@ -236,6 +242,8 @@ void __iget(struct inode * inode) + inodes_stat.nr_unused--; + } + ++EXPORT_SYMBOL_GPL(__iget); ++ + /** + * clear_inode - clear an inode + * @inode: inode to clear +@@ -1272,12 +1280,13 @@ EXPORT_SYMBOL(inode_needs_sync); + /* Function back in dquot.c */ + int remove_inode_dquot_ref(struct inode *, int, struct list_head *); + +-void remove_dquot_ref(struct super_block *sb, int type, ++void remove_dquot_ref(struct dqhash *hash, int type, + struct list_head *tofree_head) + { + struct inode *inode; ++ struct super_block *sb = hash->dqh_sb; + +- if (!sb->dq_op) ++ if (!hash->dqh_qop) + return; /* nothing to do */ + spin_lock(&inode_lock); /* This lock is for inodes code */ + +Index: linux-2.6.16/fs/ioctl.c +=================================================================== +--- linux-2.6.16.orig/fs/ioctl.c ++++ linux-2.6.16/fs/ioctl.c +@@ -13,10 +13,19 @@ + #include <linux/fs.h> + #include <linux/security.h> + #include <linux/module.h> ++#include <linux/proc_fs.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/tag.h> + + #include <asm/uaccess.h> + #include <asm/ioctls.h> + ++ ++#ifdef CONFIG_VSERVER_LEGACY ++extern int vx_proc_ioctl(struct inode *, struct file *, ++ unsigned int, unsigned long); ++#endif ++ + static long do_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) + { +@@ -147,6 +156,48 @@ int vfs_ioctl(struct file *filp, unsigne + else + error = -ENOTTY; + break; ++#ifdef CONFIG_VSERVER_LEGACY ++#ifndef CONFIG_TAGGING_NONE ++ case FIOC_GETTAG: { ++ struct inode *inode = filp->f_dentry->d_inode; ++ ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ if (capable(CAP_CONTEXT)) ++ error = put_user(inode->i_tag, (int *) arg); ++ break; ++ } ++ case FIOC_SETTAG: { ++ struct inode *inode = filp->f_dentry->d_inode; ++ int tag; ++ ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ if (!capable(CAP_CONTEXT)) ++ break; ++ error = -EROFS; ++ if (IS_RDONLY(inode)) ++ break; ++ error = -ENOSYS; ++ if (!(inode->i_sb->s_flags & MS_TAGGED)) ++ break; ++ error = -EFAULT; ++ if (get_user(tag, (int *) arg)) ++ break; ++ error = 0; ++ inode->i_tag = (tag & 0xFFFF); ++ inode->i_ctime = CURRENT_TIME; ++ mark_inode_dirty(inode); ++ break; ++ } ++#endif ++ case FIOC_GETXFLG: ++ case FIOC_SETXFLG: ++ error = -ENOTTY; ++ if (filp->f_dentry->d_inode->i_sb->s_magic == PROC_SUPER_MAGIC) ++ error = vx_proc_ioctl(filp->f_dentry->d_inode, filp, cmd, arg); ++ break; ++#endif + default: + if (S_ISREG(filp->f_dentry->d_inode->i_mode)) + error = file_ioctl(filp, cmd, arg); +Index: linux-2.6.16/fs/ioprio.c +=================================================================== +--- linux-2.6.16.orig/fs/ioprio.c ++++ linux-2.6.16/fs/ioprio.c +@@ -24,6 +24,7 @@ + #include <linux/blkdev.h> + #include <linux/capability.h> + #include <linux/syscalls.h> ++#include <linux/vs_pid.h> + + static int set_task_ioprio(struct task_struct *task, int ioprio) + { +@@ -95,7 +96,7 @@ asmlinkage long sys_ioprio_set(int which + if (!who) + user = current->user; + else +- user = find_user(who); ++ user = find_user(who, vx_current_xid()); + + if (!user) + break; +@@ -149,7 +150,7 @@ asmlinkage long sys_ioprio_get(int which + if (!who) + user = current->user; + else +- user = find_user(who); ++ user = find_user(who, vx_current_xid()); + + if (!user) + break; +Index: linux-2.6.16/fs/jfs/Makefile +=================================================================== +--- linux-2.6.16.orig/fs/jfs/Makefile ++++ linux-2.6.16/fs/jfs/Makefile +@@ -8,7 +8,8 @@ jfs-y := super.o file.o inode.o namei + jfs_xtree.o jfs_imap.o jfs_debug.o jfs_dmap.o \ + jfs_unicode.o jfs_dtree.o jfs_inode.o \ + jfs_extent.o symlink.o jfs_metapage.o \ +- jfs_logmgr.o jfs_txnmgr.o jfs_uniupr.o resize.o xattr.o ++ jfs_logmgr.o jfs_txnmgr.o jfs_uniupr.o \ ++ resize.o xattr.o ioctl.o + + jfs-$(CONFIG_JFS_POSIX_ACL) += acl.o + +Index: linux-2.6.16/fs/jfs/acl.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/acl.c ++++ linux-2.6.16/fs/jfs/acl.c +@@ -229,7 +229,8 @@ int jfs_setattr(struct dentry *dentry, s + return rc; + + if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) || +- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) { ++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) || ++ (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) { + if (DQUOT_TRANSFER(inode, iattr)) + return -EDQUOT; + } +Index: linux-2.6.16/fs/jfs/file.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/file.c ++++ linux-2.6.16/fs/jfs/file.c +@@ -98,6 +98,7 @@ struct inode_operations jfs_file_inode_o + .setattr = jfs_setattr, + .permission = jfs_permission, + #endif ++ .sync_flags = jfs_sync_flags, + }; + + struct file_operations jfs_file_operations = { +@@ -111,6 +112,8 @@ struct file_operations jfs_file_operatio + .readv = generic_file_readv, + .writev = generic_file_writev, + .sendfile = generic_file_sendfile, ++ .sendpage = generic_file_sendpage, + .fsync = jfs_fsync, + .release = jfs_release, ++ .ioctl = jfs_ioctl, + }; +Index: linux-2.6.16/fs/jfs/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/inode.c ++++ linux-2.6.16/fs/jfs/inode.c +@@ -22,6 +22,7 @@ + #include <linux/buffer_head.h> + #include <linux/pagemap.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_inode.h" + #include "jfs_filsys.h" +@@ -55,6 +56,7 @@ void jfs_read_inode(struct inode *inode) + inode->i_op = &jfs_file_inode_operations; + init_special_inode(inode, inode->i_mode, inode->i_rdev); + } ++ jfs_set_inode_flags(inode); + } + + /* +@@ -143,6 +145,7 @@ void jfs_delete_inode(struct inode *inod + DQUOT_INIT(inode); + DQUOT_FREE_INODE(inode); + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + } + + clear_inode(inode); +Index: linux-2.6.16/fs/jfs/ioctl.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/fs/jfs/ioctl.c +@@ -0,0 +1,111 @@ ++/* ++ * linux/fs/jfs/ioctl.c ++ * ++ * Copyright (C) 2006 Herbert Poetzl ++ * adapted from Remy Card's ext2/ioctl.c ++ */ ++ ++#include <linux/fs.h> ++#include <linux/ext2_fs.h> ++#include <linux/ctype.h> ++#include <linux/capability.h> ++#include <linux/time.h> ++#include <linux/mount.h> ++#include <asm/current.h> ++#include <asm/uaccess.h> ++ ++#include "jfs_incore.h" ++#include "jfs_dinode.h" ++#include "jfs_inode.h" ++ ++ ++static struct { ++ long jfs_flag; ++ long ext2_flag; ++} jfs_map[] = { ++ {JFS_NOATIME_FL, EXT2_NOATIME_FL}, ++ {JFS_DIRSYNC_FL, EXT2_DIRSYNC_FL}, ++ {JFS_SYNC_FL, EXT2_SYNC_FL}, ++ {JFS_SECRM_FL, EXT2_SECRM_FL}, ++ {JFS_UNRM_FL, EXT2_UNRM_FL}, ++ {JFS_APPEND_FL, EXT2_APPEND_FL}, ++ {JFS_IMMUTABLE_FL, EXT2_IMMUTABLE_FL}, ++ {0, 0}, ++}; ++ ++static long jfs_map_ext2(unsigned long flags, int from) ++{ ++ int index=0; ++ long mapped=0; ++ ++ while (jfs_map[index].jfs_flag) { ++ if (from) { ++ if (jfs_map[index].ext2_flag & flags) ++ mapped |= jfs_map[index].jfs_flag; ++ } else { ++ if (jfs_map[index].jfs_flag & flags) ++ mapped |= jfs_map[index].ext2_flag; ++ } ++ index++; ++ } ++ return mapped; ++} ++ ++ ++int jfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd, ++ unsigned long arg) ++{ ++ struct jfs_inode_info *jfs_inode = JFS_IP(inode); ++ unsigned int flags; ++ ++ switch (cmd) { ++ case JFS_IOC_GETFLAGS: ++ flags = jfs_inode->mode2 & JFS_FL_USER_VISIBLE; ++ flags = jfs_map_ext2(flags, 0); ++ return put_user(flags, (int __user *) arg); ++ case JFS_IOC_SETFLAGS: { ++ unsigned int oldflags; ++ ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) ++ return -EROFS; ++ ++ if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) ++ return -EACCES; ++ ++ if (get_user(flags, (int __user *) arg)) ++ return -EFAULT; ++ ++ flags = jfs_map_ext2(flags, 1); ++ if (!S_ISDIR(inode->i_mode)) ++ flags &= ~JFS_DIRSYNC_FL; ++ ++ oldflags = jfs_inode->mode2; ++ ++ /* ++ * The IMMUTABLE and APPEND_ONLY flags can only be changed by ++ * the relevant capability. ++ * ++ * This test looks nicer. Thanks to Pauline Middelink ++ */ ++ if ((oldflags & JFS_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & (JFS_APPEND_FL | ++ JFS_IMMUTABLE_FL | JFS_IUNLINK_FL))) { ++ if (!capable(CAP_LINUX_IMMUTABLE)) ++ return -EPERM; ++ } ++ ++ flags = flags & JFS_FL_USER_MODIFIABLE; ++ flags |= oldflags & ~JFS_FL_USER_MODIFIABLE; ++ jfs_inode->mode2 = flags; ++ ++ jfs_set_inode_flags(inode); ++ inode->i_ctime = CURRENT_TIME_SEC; ++ mark_inode_dirty(inode); ++ return 0; ++ } ++ default: ++ return -ENOTTY; ++ } ++} ++ +Index: linux-2.6.16/fs/jfs/jfs_dinode.h +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_dinode.h ++++ linux-2.6.16/fs/jfs/jfs_dinode.h +@@ -139,13 +139,39 @@ struct dinode { + + /* more extended mode bits: attributes for OS/2 */ + #define IREADONLY 0x02000000 /* no write access to file */ +-#define IARCHIVE 0x40000000 /* file archive bit */ +-#define ISYSTEM 0x08000000 /* system file */ + #define IHIDDEN 0x04000000 /* hidden file */ +-#define IRASH 0x4E000000 /* mask for changeable attributes */ +-#define INEWNAME 0x80000000 /* non-8.3 filename format */ ++#define ISYSTEM 0x08000000 /* system file */ ++ + #define IDIRECTORY 0x20000000 /* directory (shadow of real bit) */ ++#define IARCHIVE 0x40000000 /* file archive bit */ ++#define INEWNAME 0x80000000 /* non-8.3 filename format */ ++ ++#define IRASH 0x4E000000 /* mask for changeable attributes */ + #define ATTRSHIFT 25 /* bits to shift to move attribute + specification to mode position */ + ++/* extended attributes for Linux */ ++ ++#define JFS_NOATIME_FL 0x00080000 /* do not update atime */ ++ ++#define JFS_DIRSYNC_FL 0x00100000 /* dirsync behaviour */ ++#define JFS_SYNC_FL 0x00200000 /* Synchronous updates */ ++#define JFS_SECRM_FL 0x00400000 /* Secure deletion */ ++#define JFS_UNRM_FL 0x00800000 /* allow for undelete */ ++ ++#define JFS_APPEND_FL 0x01000000 /* writes to file may only append */ ++#define JFS_IMMUTABLE_FL 0x02000000 /* Immutable file */ ++ ++#define JFS_BARRIER_FL 0x04000000 /* Barrier for chroot() */ ++#define JFS_IUNLINK_FL 0x08000000 /* Immutable unlink */ ++ ++#define JFS_FL_USER_VISIBLE 0x0FF80000 ++#define JFS_FL_USER_MODIFIABLE 0x03F80000 ++#define JFS_FL_INHERIT 0x0BC80000 ++ ++ ++#define JFS_IOC_GETFLAGS _IOR('f', 1, long) ++#define JFS_IOC_SETFLAGS _IOW('f', 2, long) ++ ++ + #endif /*_H_JFS_DINODE */ +Index: linux-2.6.16/fs/jfs/jfs_dtree.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_dtree.c ++++ linux-2.6.16/fs/jfs/jfs_dtree.c +@@ -102,6 +102,7 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_superblock.h" + #include "jfs_filsys.h" +@@ -383,10 +384,10 @@ static u32 add_index(tid_t tid, struct i + */ + if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage)) + goto clean_up; +- if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) { +- DQUOT_FREE_BLOCK(ip, sbi->nbperpage); +- goto clean_up; +- } ++ if (DLIMIT_ALLOC_BLOCK(ip, sbi->nbperpage)) ++ goto clean_up_dquot; ++ if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) ++ goto clean_up_dlimit; + + /* + * Save the table, we're going to overwrite it with the +@@ -479,6 +480,12 @@ static u32 add_index(tid_t tid, struct i + + return index; + ++ clean_up_dlimit: ++ DLIMIT_FREE_BLOCK(ip, sbi->nbperpage); ++ ++ clean_up_dquot: ++ DQUOT_FREE_BLOCK(ip, sbi->nbperpage); ++ + clean_up: + + jfs_ip->next_index--; +@@ -930,7 +937,8 @@ int dtInsert(tid_t tid, struct inode *ip + static int dtSplitUp(tid_t tid, + struct inode *ip, struct dtsplit * split, struct btstack * btstack) + { +- struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); ++ struct super_block *sb = ip->i_sb; ++ struct jfs_sb_info *sbi = JFS_SBI(sb); + int rc = 0; + struct metapage *smp; + dtpage_t *sp; /* split page */ +@@ -952,6 +960,7 @@ static int dtSplitUp(tid_t tid, + struct tlock *tlck; + struct lv *lv; + int quota_allocation = 0; ++ int dlimit_allocation = 0; + + /* get split page */ + smp = split->mp; +@@ -1033,6 +1042,12 @@ static int dtSplitUp(tid_t tid, + } + quota_allocation += n; + ++ if (DLIMIT_ALLOC_BLOCK(ip, n)) { ++ rc = -ENOSPC; ++ goto extendOut; ++ } ++ dlimit_allocation += n; ++ + if ((rc = dbReAlloc(sbi->ipbmap, xaddr, (s64) xlen, + (s64) n, &nxaddr))) + goto extendOut; +@@ -1301,6 +1316,9 @@ static int dtSplitUp(tid_t tid, + freeKeyName: + kfree(key.name); + ++ /* Rollback dlimit allocation */ ++ if (rc && dlimit_allocation) ++ DLIMIT_FREE_BLOCK(ip, dlimit_allocation); + /* Rollback quota allocation */ + if (rc && quota_allocation) + DQUOT_FREE_BLOCK(ip, quota_allocation); +@@ -1368,6 +1386,12 @@ static int dtSplitPage(tid_t tid, struct + release_metapage(rmp); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ DQUOT_FREE_BLOCK(ip, lengthPXD(pxd)); ++ release_metapage(rmp); ++ return -ENOSPC; ++ } + + jfs_info("dtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp); + +@@ -1918,6 +1942,12 @@ static int dtSplitRoot(tid_t tid, + release_metapage(rmp); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ DQUOT_FREE_BLOCK(ip, lengthPXD(pxd)); ++ release_metapage(rmp); ++ return -ENOSPC; ++ } + + BT_MARK_DIRTY(rmp, ip); + /* +@@ -2284,6 +2314,8 @@ static int dtDeleteUp(tid_t tid, struct + + xlen = lengthPXD(&fp->header.self); + ++ /* Free dlimit allocation. */ ++ DLIMIT_FREE_BLOCK(ip, xlen); + /* Free quota allocation. */ + DQUOT_FREE_BLOCK(ip, xlen); + +@@ -2360,6 +2392,8 @@ static int dtDeleteUp(tid_t tid, struct + + xlen = lengthPXD(&p->header.self); + ++ /* Free dlimit allocation */ ++ DLIMIT_FREE_BLOCK(ip, xlen); + /* Free quota allocation */ + DQUOT_FREE_BLOCK(ip, xlen); + +Index: linux-2.6.16/fs/jfs/jfs_extent.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_extent.c ++++ linux-2.6.16/fs/jfs/jfs_extent.c +@@ -18,6 +18,7 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_inode.h" + #include "jfs_superblock.h" +@@ -146,6 +147,13 @@ extAlloc(struct inode *ip, s64 xlen, s64 + up(&JFS_IP(ip)->commit_sem); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) { ++ DQUOT_FREE_BLOCK(ip, nxlen); ++ dbFree(ip, nxaddr, (s64) nxlen); ++ up(&JFS_IP(ip)->commit_sem); ++ return -ENOSPC; ++ } + + /* determine the value of the extent flag */ + xflag = (abnr == TRUE) ? XAD_NOTRECORDED : 0; +@@ -164,6 +172,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 + */ + if (rc) { + dbFree(ip, nxaddr, nxlen); ++ DLIMIT_FREE_BLOCK(ip, nxlen); + DQUOT_FREE_BLOCK(ip, nxlen); + up(&JFS_IP(ip)->commit_sem); + return (rc); +@@ -261,6 +270,13 @@ int extRealloc(struct inode *ip, s64 nxl + up(&JFS_IP(ip)->commit_sem); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) { ++ DQUOT_FREE_BLOCK(ip, nxlen); ++ dbFree(ip, nxaddr, (s64) nxlen); ++ up(&JFS_IP(ip)->commit_sem); ++ return -ENOSPC; ++ } + + delta = nxlen - xlen; + +@@ -297,6 +313,7 @@ int extRealloc(struct inode *ip, s64 nxl + /* extend the extent */ + if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) { + dbFree(ip, xaddr + xlen, delta); ++ DLIMIT_FREE_BLOCK(ip, nxlen); + DQUOT_FREE_BLOCK(ip, nxlen); + goto exit; + } +@@ -308,6 +325,7 @@ int extRealloc(struct inode *ip, s64 nxl + */ + if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) { + dbFree(ip, nxaddr, nxlen); ++ DLIMIT_FREE_BLOCK(ip, nxlen); + DQUOT_FREE_BLOCK(ip, nxlen); + goto exit; + } +Index: linux-2.6.16/fs/jfs/jfs_filsys.h +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_filsys.h ++++ linux-2.6.16/fs/jfs/jfs_filsys.h +@@ -84,6 +84,7 @@ + #define JFS_DIR_INDEX 0x00200000 /* Persistant index for */ + /* directory entries */ + ++#define JFS_TAGGED 0x00800000 /* Context Tagging */ + + /* + * buffer cache configuration +Index: linux-2.6.16/fs/jfs/jfs_imap.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_imap.c ++++ linux-2.6.16/fs/jfs/jfs_imap.c +@@ -45,6 +45,7 @@ + #include <linux/buffer_head.h> + #include <linux/pagemap.h> + #include <linux/quotaops.h> ++#include <linux/vserver/tag.h> + + #include "jfs_incore.h" + #include "jfs_inode.h" +@@ -3074,14 +3075,21 @@ static void duplicateIXtree(struct super + static int copy_from_dinode(struct dinode * dip, struct inode *ip) + { + struct jfs_inode_info *jfs_ip = JFS_IP(ip); ++ uid_t uid; ++ gid_t gid; + + jfs_ip->fileset = le32_to_cpu(dip->di_fileset); + jfs_ip->mode2 = le32_to_cpu(dip->di_mode); + + ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; + ip->i_nlink = le32_to_cpu(dip->di_nlink); +- ip->i_uid = le32_to_cpu(dip->di_uid); +- ip->i_gid = le32_to_cpu(dip->di_gid); ++ ++ uid = le32_to_cpu(dip->di_uid); ++ gid = le32_to_cpu(dip->di_gid); ++ ip->i_uid = INOTAG_UID(DX_TAG(ip), uid, gid); ++ ip->i_gid = INOTAG_GID(DX_TAG(ip), uid, gid); ++ ip->i_tag = INOTAG_TAG(DX_TAG(ip), uid, gid, 0); ++ + ip->i_size = le64_to_cpu(dip->di_size); + ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec); + ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec); +@@ -3132,6 +3140,8 @@ static int copy_from_dinode(struct dinod + static void copy_to_dinode(struct dinode * dip, struct inode *ip) + { + struct jfs_inode_info *jfs_ip = JFS_IP(ip); ++ uid_t uid; ++ gid_t gid; + + dip->di_fileset = cpu_to_le32(jfs_ip->fileset); + dip->di_inostamp = cpu_to_le32(JFS_SBI(ip->i_sb)->inostamp); +@@ -3140,8 +3150,11 @@ static void copy_to_dinode(struct dinode + dip->di_size = cpu_to_le64(ip->i_size); + dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); + dip->di_nlink = cpu_to_le32(ip->i_nlink); +- dip->di_uid = cpu_to_le32(ip->i_uid); +- dip->di_gid = cpu_to_le32(ip->i_gid); ++ ++ uid = TAGINO_UID(DX_TAG(ip), ip->i_uid, ip->i_tag); ++ gid = TAGINO_GID(DX_TAG(ip), ip->i_gid, ip->i_tag); ++ dip->di_uid = cpu_to_le32(uid); ++ dip->di_gid = cpu_to_le32(gid); + /* + * mode2 is only needed for storing the higher order bits. + * Trust i_mode for the lower order ones +Index: linux-2.6.16/fs/jfs/jfs_inode.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_inode.c ++++ linux-2.6.16/fs/jfs/jfs_inode.c +@@ -18,6 +18,8 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vs_tag.h> + #include "jfs_incore.h" + #include "jfs_inode.h" + #include "jfs_filsys.h" +@@ -25,6 +27,66 @@ + #include "jfs_dinode.h" + #include "jfs_debug.h" + ++ ++void jfs_set_inode_flags(struct inode *inode) ++{ ++ unsigned int flags = JFS_IP(inode)->mode2; ++ ++ inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER | ++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); ++ ++ if (flags & JFS_IMMUTABLE_FL) ++ inode->i_flags |= S_IMMUTABLE; ++ if (flags & JFS_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ if (flags & JFS_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ ++ if (flags & JFS_SYNC_FL) ++ inode->i_flags |= S_SYNC; ++ if (flags & JFS_APPEND_FL) ++ inode->i_flags |= S_APPEND; ++ if (flags & JFS_NOATIME_FL) ++ inode->i_flags |= S_NOATIME; ++ if (flags & JFS_DIRSYNC_FL) ++ inode->i_flags |= S_DIRSYNC; ++} ++ ++int jfs_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ ++ oldflags = JFS_IP(inode)->mode2; ++ newflags = oldflags & ~(JFS_APPEND_FL | ++ JFS_IMMUTABLE_FL | JFS_IUNLINK_FL | ++ JFS_BARRIER_FL | JFS_NOATIME_FL | ++ JFS_SYNC_FL | JFS_DIRSYNC_FL); ++ ++ if (IS_APPEND(inode)) ++ newflags |= JFS_APPEND_FL; ++ if (IS_IMMUTABLE(inode)) ++ newflags |= JFS_IMMUTABLE_FL; ++ if (IS_IUNLINK(inode)) ++ newflags |= JFS_IUNLINK_FL; ++ if (IS_BARRIER(inode)) ++ newflags |= JFS_BARRIER_FL; ++ ++ /* we do not want to copy superblock flags */ ++ if (inode->i_flags & S_NOATIME) ++ newflags |= JFS_NOATIME_FL; ++ if (inode->i_flags & S_SYNC) ++ newflags |= JFS_SYNC_FL; ++ if (inode->i_flags & S_DIRSYNC) ++ newflags |= JFS_DIRSYNC_FL; ++ ++ if (oldflags ^ newflags) { ++ JFS_IP(inode)->mode2 = newflags; ++ inode->i_ctime = CURRENT_TIME; ++ mark_inode_dirty(inode); ++ } ++ return 0; ++} ++ + /* + * NAME: ialloc() + * +@@ -62,10 +124,17 @@ struct inode *ialloc(struct inode *paren + } else + inode->i_gid = current->fsgid; + ++ inode->i_tag = dx_current_fstag(sb); ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ iput(inode); ++ return NULL; ++ } ++ + /* + * Allocate inode to quota. + */ + if (DQUOT_ALLOC_INODE(inode)) { ++ DLIMIT_FREE_INODE(inode); + DQUOT_DROP(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; +@@ -74,10 +143,20 @@ struct inode *ialloc(struct inode *paren + } + + inode->i_mode = mode; +- if (S_ISDIR(mode)) +- jfs_inode->mode2 = IDIRECTORY | mode; ++ /* inherit flags from parent */ ++ jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT; ++ ++ if (S_ISDIR(mode)) { ++ jfs_inode->mode2 |= IDIRECTORY; ++ jfs_inode->mode2 &= ~JFS_DIRSYNC_FL; ++ } ++ else if (S_ISLNK(mode)) ++ jfs_inode->mode2 &= ++ ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL); + else +- jfs_inode->mode2 = INLINEEA | ISPARSE | mode; ++ jfs_inode->mode2 |= INLINEEA | ISPARSE; ++ jfs_inode->mode2 |= mode; ++ + inode->i_blksize = sb->s_blocksize; + inode->i_blocks = 0; + inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; +@@ -98,6 +177,7 @@ struct inode *ialloc(struct inode *paren + jfs_inode->atlhead = 0; + jfs_inode->atltail = 0; + jfs_inode->xtlid = 0; ++ jfs_set_inode_flags(inode); + + jfs_info("ialloc returns inode = 0x%p\n", inode); + +Index: linux-2.6.16/fs/jfs/jfs_inode.h +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_inode.h ++++ linux-2.6.16/fs/jfs/jfs_inode.h +@@ -20,6 +20,8 @@ + + extern struct inode *ialloc(struct inode *, umode_t); + extern int jfs_fsync(struct file *, struct dentry *, int); ++extern int jfs_ioctl(struct inode *, struct file *, ++ unsigned int, unsigned long); + extern void jfs_read_inode(struct inode *); + extern int jfs_commit_inode(struct inode *, int); + extern int jfs_write_inode(struct inode*, int); +@@ -29,6 +31,8 @@ extern void jfs_truncate(struct inode *) + extern void jfs_truncate_nolock(struct inode *, loff_t); + extern void jfs_free_zero_link(struct inode *); + extern struct dentry *jfs_get_parent(struct dentry *dentry); ++extern int jfs_sync_flags(struct inode *); ++extern void jfs_set_inode_flags(struct inode *); + + extern struct address_space_operations jfs_aops; + extern struct inode_operations jfs_dir_inode_operations; +Index: linux-2.6.16/fs/jfs/jfs_xtree.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/jfs_xtree.c ++++ linux-2.6.16/fs/jfs/jfs_xtree.c +@@ -21,6 +21,7 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_filsys.h" + #include "jfs_metapage.h" +@@ -841,7 +842,12 @@ int xtInsert(tid_t tid, /* transaction + hint = 0; + if ((rc = DQUOT_ALLOC_BLOCK(ip, xlen))) + goto out; ++ if ((rc = DLIMIT_ALLOC_BLOCK(ip, xlen))) { ++ DQUOT_FREE_BLOCK(ip, xlen); ++ goto out; ++ } + if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr))) { ++ DLIMIT_FREE_BLOCK(ip, xlen); + DQUOT_FREE_BLOCK(ip, xlen); + goto out; + } +@@ -871,6 +877,7 @@ int xtInsert(tid_t tid, /* transaction + /* undo data extent allocation */ + if (*xaddrp == 0) { + dbFree(ip, xaddr, (s64) xlen); ++ DLIMIT_FREE_BLOCK(ip, xlen); + DQUOT_FREE_BLOCK(ip, xlen); + } + return rc; +@@ -1231,6 +1238,7 @@ xtSplitPage(tid_t tid, struct inode *ip, + struct tlock *tlck; + struct xtlock *sxtlck = NULL, *rxtlck = NULL; + int quota_allocation = 0; ++ int dlimit_allocation = 0; + + smp = split->mp; + sp = XT_PAGE(ip, smp); +@@ -1243,13 +1251,20 @@ xtSplitPage(tid_t tid, struct inode *ip, + rbn = addressPXD(pxd); + + /* Allocate blocks to quota. */ +- if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { + rc = -EDQUOT; + goto clean_up; + } + + quota_allocation += lengthPXD(pxd); + ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ rc = -ENOSPC; ++ goto clean_up; ++ } ++ dlimit_allocation += lengthPXD(pxd); ++ + /* + * allocate the new right page for the split + */ +@@ -1451,6 +1466,9 @@ xtSplitPage(tid_t tid, struct inode *ip, + + clean_up: + ++ /* Rollback dlimit allocation. */ ++ if (dlimit_allocation) ++ DLIMIT_FREE_BLOCK(ip, dlimit_allocation); + /* Rollback quota allocation. */ + if (quota_allocation) + DQUOT_FREE_BLOCK(ip, quota_allocation); +@@ -1515,6 +1533,12 @@ xtSplitRoot(tid_t tid, + release_metapage(rmp); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ DQUOT_FREE_BLOCK(ip, lengthPXD(pxd)); ++ release_metapage(rmp); ++ return -ENOSPC; ++ } + + jfs_info("xtSplitRoot: ip:0x%p rmp:0x%p", ip, rmp); + +@@ -3941,6 +3965,8 @@ s64 xtTruncate(tid_t tid, struct inode * + else + ip->i_size = newsize; + ++ /* update dlimit allocation to reflect freed blocks */ ++ DLIMIT_FREE_BLOCK(ip, nfreed); + /* update quota allocation to reflect freed blocks */ + DQUOT_FREE_BLOCK(ip, nfreed); + +Index: linux-2.6.16/fs/jfs/namei.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/namei.c ++++ linux-2.6.16/fs/jfs/namei.c +@@ -20,6 +20,7 @@ + #include <linux/fs.h> + #include <linux/ctype.h> + #include <linux/quotaops.h> ++#include <linux/vserver/tag.h> + #include "jfs_incore.h" + #include "jfs_superblock.h" + #include "jfs_inode.h" +@@ -1465,6 +1466,7 @@ static struct dentry *jfs_lookup(struct + return ERR_PTR(-EACCES); + } + ++ dx_propagate_tag(nd, ip); + dentry = d_splice_alias(ip, dentry); + + if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2)) +@@ -1517,12 +1519,14 @@ struct inode_operations jfs_dir_inode_op + .setattr = jfs_setattr, + .permission = jfs_permission, + #endif ++ .sync_flags = jfs_sync_flags, + }; + + struct file_operations jfs_dir_operations = { + .read = generic_read_dir, + .readdir = jfs_readdir, + .fsync = jfs_fsync, ++ .ioctl = jfs_ioctl, + }; + + static int jfs_ci_hash(struct dentry *dir, struct qstr *this) +Index: linux-2.6.16/fs/jfs/super.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/super.c ++++ linux-2.6.16/fs/jfs/super.c +@@ -195,7 +195,7 @@ static void jfs_put_super(struct super_b + enum { + Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize, + Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota, +- Opt_usrquota, Opt_grpquota ++ Opt_usrquota, Opt_grpquota, Opt_tag, Opt_notag, Opt_tagid + }; + + static match_table_t tokens = { +@@ -205,6 +205,10 @@ static match_table_t tokens = { + {Opt_resize, "resize=%u"}, + {Opt_resize_nosize, "resize"}, + {Opt_errors, "errors=%s"}, ++ {Opt_tag, "tag"}, ++ {Opt_notag, "notag"}, ++ {Opt_tagid, "tagid=%u"}, ++ {Opt_tag, "tagxid"}, + {Opt_ignore, "noquota"}, + {Opt_ignore, "quota"}, + {Opt_usrquota, "usrquota"}, +@@ -313,6 +317,20 @@ static int parse_options(char *options, + "JFS: quota operations not supported\n"); + break; + #endif ++#ifndef CONFIG_TAGGING_NONE ++ case Opt_tag: ++ *flag |= JFS_TAGGED; ++ break; ++ case Opt_notag: ++ *flag &= JFS_TAGGED; ++ break; ++#endif ++#ifdef CONFIG_PROPAGATE ++ case Opt_tagid: ++ /* use args[0] */ ++ *flag |= JFS_TAGGED; ++ break; ++#endif + + default: + printk("jfs: Unrecognized mount option \"%s\" " +@@ -344,6 +362,13 @@ static int jfs_remount(struct super_bloc + if (!parse_options(data, sb, &newLVSize, &flag)) { + return -EINVAL; + } ++ ++ if ((flag & JFS_TAGGED) && !(sb->s_flags & MS_TAGGED)) { ++ printk(KERN_ERR "JFS: %s: tagging not permitted on remount.\n", ++ sb->s_id); ++ return -EINVAL; ++ } ++ + if (newLVSize) { + if (sb->s_flags & MS_RDONLY) { + printk(KERN_ERR +@@ -415,6 +440,9 @@ static int jfs_fill_super(struct super_b + #ifdef CONFIG_JFS_POSIX_ACL + sb->s_flags |= MS_POSIXACL; + #endif ++ /* map mount option tagxid */ ++ if (sbi->flag & JFS_TAGGED) ++ sb->s_flags |= MS_TAGGED; + + if (newLVSize) { + printk(KERN_ERR "resize option for remount only\n"); +Index: linux-2.6.16/fs/jfs/xattr.c +=================================================================== +--- linux-2.6.16.orig/fs/jfs/xattr.c ++++ linux-2.6.16/fs/jfs/xattr.c +@@ -23,6 +23,7 @@ + #include <linux/posix_acl_xattr.h> + #include <linux/quotaops.h> + #include <linux/security.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_superblock.h" + #include "jfs_dmap.h" +@@ -263,9 +264,16 @@ static int ea_write(struct inode *ip, st + if (DQUOT_ALLOC_BLOCK(ip, nblocks)) { + return -EDQUOT; + } ++ /* Allocate new blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, nblocks)) { ++ DQUOT_FREE_BLOCK(ip, nblocks); ++ return -ENOSPC; ++ } + + rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno); + if (rc) { ++ /*Rollback dlimit allocation. */ ++ DLIMIT_FREE_BLOCK(ip, nblocks); + /*Rollback quota allocation. */ + DQUOT_FREE_BLOCK(ip, nblocks); + return rc; +@@ -332,6 +340,8 @@ static int ea_write(struct inode *ip, st + + failed: + /* Rollback quota allocation. */ ++ DLIMIT_FREE_BLOCK(ip, nblocks); ++ /* Rollback quota allocation. */ + DQUOT_FREE_BLOCK(ip, nblocks); + + dbFree(ip, blkno, nblocks); +@@ -468,6 +478,7 @@ static int ea_get(struct inode *inode, s + s64 blkno; + int rc; + int quota_allocation = 0; ++ int dlimit_allocation = 0; + + /* When fsck.jfs clears a bad ea, it doesn't clear the size */ + if (ji->ea.flag == 0) +@@ -543,6 +554,12 @@ static int ea_get(struct inode *inode, s + + quota_allocation = blocks_needed; + ++ /* Allocate new blocks to dlimit. */ ++ rc = -ENOSPC; ++ if (DLIMIT_ALLOC_BLOCK(inode, blocks_needed)) ++ goto clean_up; ++ dlimit_allocation = blocks_needed; ++ + rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed, + &blkno); + if (rc) +@@ -599,6 +616,9 @@ static int ea_get(struct inode *inode, s + return ea_size; + + clean_up: ++ /* Rollback dlimit allocation */ ++ if (dlimit_allocation) ++ DLIMIT_FREE_BLOCK(inode, dlimit_allocation); + /* Rollback quota allocation */ + if (quota_allocation) + DQUOT_FREE_BLOCK(inode, quota_allocation); +@@ -675,8 +695,10 @@ static int ea_put(tid_t tid, struct inod + } + + /* If old blocks exist, they must be removed from quota allocation. */ +- if (old_blocks) ++ if (old_blocks) { ++ DLIMIT_FREE_BLOCK(inode, old_blocks); + DQUOT_FREE_BLOCK(inode, old_blocks); ++ } + + inode->i_ctime = CURRENT_TIME; + +Index: linux-2.6.16/fs/libfs.c +=================================================================== +--- linux-2.6.16.orig/fs/libfs.c ++++ linux-2.6.16/fs/libfs.c +@@ -122,7 +122,8 @@ static inline unsigned char dt_type(stru + * both impossible due to the lock on directory. + */ + +-int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) ++static inline int do_dcache_readdir_filter(struct file * filp, ++ void * dirent, filldir_t filldir, int (*filter)(struct dentry *dentry)) + { + struct dentry *dentry = filp->f_dentry; + struct dentry *cursor = filp->private_data; +@@ -156,6 +157,8 @@ int dcache_readdir(struct file * filp, v + next = list_entry(p, struct dentry, d_u.d_child); + if (d_unhashed(next) || !next->d_inode) + continue; ++ if (filter && !filter(next)) ++ continue; + + spin_unlock(&dcache_lock); + if (filldir(dirent, next->d_name.name, next->d_name.len, filp->f_pos, next->d_inode->i_ino, dt_type(next->d_inode)) < 0) +@@ -172,6 +175,18 @@ int dcache_readdir(struct file * filp, v + return 0; + } + ++int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) ++{ ++ return do_dcache_readdir_filter(filp, dirent, filldir, NULL); ++} ++ ++int dcache_readdir_filter(struct file * filp, void * dirent, filldir_t filldir, ++ int (*filter)(struct dentry *)) ++{ ++ return do_dcache_readdir_filter(filp, dirent, filldir, filter); ++} ++ ++ + ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos) + { + return -EISDIR; +@@ -621,6 +636,7 @@ EXPORT_SYMBOL(dcache_dir_close); + EXPORT_SYMBOL(dcache_dir_lseek); + EXPORT_SYMBOL(dcache_dir_open); + EXPORT_SYMBOL(dcache_readdir); ++EXPORT_SYMBOL(dcache_readdir_filter); + EXPORT_SYMBOL(generic_read_dir); + EXPORT_SYMBOL(get_sb_pseudo); + EXPORT_SYMBOL(simple_commit_write); +Index: linux-2.6.16/fs/locks.c +=================================================================== +--- linux-2.6.16.orig/fs/locks.c ++++ linux-2.6.16/fs/locks.c +@@ -125,6 +125,7 @@ + #include <linux/syscalls.h> + #include <linux/time.h> + #include <linux/rcupdate.h> ++#include <linux/vs_limit.h> + + #include <asm/semaphore.h> + #include <asm/uaccess.h> +@@ -150,12 +151,16 @@ static kmem_cache_t *filelock_cache; + /* Allocate an empty lock structure. */ + static struct file_lock *locks_alloc_lock(void) + { ++ if (!vx_locks_avail(1)) ++ return NULL; + return kmem_cache_alloc(filelock_cache, SLAB_KERNEL); + } + + /* Free a lock which is not in use. */ + static void locks_free_lock(struct file_lock *fl) + { ++ vx_locks_dec(fl); ++ + if (fl == NULL) { + BUG(); + return; +@@ -199,6 +204,7 @@ void locks_init_lock(struct file_lock *f + fl->fl_start = fl->fl_end = 0; + fl->fl_ops = NULL; + fl->fl_lmops = NULL; ++ fl->fl_xid = -1; + } + + EXPORT_SYMBOL(locks_init_lock); +@@ -236,6 +242,8 @@ void locks_copy_lock(struct file_lock *n + fl->fl_ops->fl_copy_lock(new, fl); + if (fl->fl_lmops && fl->fl_lmops->fl_copy_lock) + fl->fl_lmops->fl_copy_lock(new, fl); ++ ++ new->fl_xid = fl->fl_xid; + } + + EXPORT_SYMBOL(locks_copy_lock); +@@ -272,6 +280,11 @@ static int flock_make_lock(struct file * + fl->fl_flags = FL_FLOCK; + fl->fl_type = type; + fl->fl_end = OFFSET_MAX; ++ ++ vxd_assert(filp->f_xid == vx_current_xid(), ++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid()); ++ fl->fl_xid = filp->f_xid; ++ vx_locks_inc(fl); + + *lock = fl; + return 0; +@@ -457,6 +470,11 @@ static int lease_alloc(struct file *filp + if (fl == NULL) + return -ENOMEM; + ++ fl->fl_xid = vx_current_xid(); ++ if (filp) ++ vxd_assert(filp->f_xid == fl->fl_xid, ++ "f_xid(%d) == fl_xid(%d)", filp->f_xid, fl->fl_xid); ++ vx_locks_inc(fl); + error = lease_init(filp, type, fl); + if (error) + return error; +@@ -771,7 +789,7 @@ out: + + EXPORT_SYMBOL(posix_lock_file); + +-static int __posix_lock_file(struct inode *inode, struct file_lock *request) ++static int __posix_lock_file(struct inode *inode, struct file_lock *request, xid_t xid) + { + struct file_lock *fl; + struct file_lock *new_fl, *new_fl2; +@@ -780,12 +798,18 @@ static int __posix_lock_file(struct inod + struct file_lock **before; + int error, added = 0; + ++ vxd_assert(xid == vx_current_xid(), ++ "xid(%d) == current(%d)", xid, vx_current_xid()); + /* + * We may need two file_lock structures for this operation, + * so we get them in advance to avoid races. + */ + new_fl = locks_alloc_lock(); ++ new_fl->fl_xid = xid; ++ vx_locks_inc(new_fl); + new_fl2 = locks_alloc_lock(); ++ new_fl2->fl_xid = xid; ++ vx_locks_inc(new_fl2); + + lock_kernel(); + if (request->fl_type != F_UNLCK) { +@@ -963,7 +987,7 @@ static int __posix_lock_file(struct inod + */ + int posix_lock_file(struct file *filp, struct file_lock *fl) + { +- return __posix_lock_file(filp->f_dentry->d_inode, fl); ++ return __posix_lock_file(filp->f_dentry->d_inode, fl, filp->f_xid); + } + + /** +@@ -980,7 +1004,8 @@ int posix_lock_file_wait(struct file *fi + int error; + might_sleep (); + for (;;) { +- error = __posix_lock_file(filp->f_dentry->d_inode, fl); ++ error = __posix_lock_file(filp->f_dentry->d_inode, ++ fl, filp->f_xid); + if ((error != -EAGAIN) || !(fl->fl_flags & FL_SLEEP)) + break; + error = wait_event_interruptible(fl->fl_wait, !fl->fl_next); +@@ -1052,7 +1077,7 @@ int locks_mandatory_area(int read_write, + fl.fl_end = offset + count - 1; + + for (;;) { +- error = __posix_lock_file(inode, &fl); ++ error = __posix_lock_file(inode, &fl, filp->f_xid); + if (error != -EAGAIN) + break; + if (!(fl.fl_flags & FL_SLEEP)) +@@ -1613,6 +1638,11 @@ int fcntl_setlk(unsigned int fd, struct + if (file_lock == NULL) + return -ENOLCK; + ++ vxd_assert(filp->f_xid == vx_current_xid(), ++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid()); ++ file_lock->fl_xid = filp->f_xid; ++ vx_locks_inc(file_lock); ++ + /* + * This might block, so we do it before checking the inode. + */ +@@ -1665,7 +1695,8 @@ again: + error = filp->f_op->lock(filp, cmd, file_lock); + else { + for (;;) { +- error = __posix_lock_file(inode, file_lock); ++ error = __posix_lock_file(inode, file_lock, ++ filp->f_xid); + if ((error != -EAGAIN) || (cmd == F_SETLK)) + break; + error = wait_event_interruptible(file_lock->fl_wait, +@@ -1756,6 +1787,11 @@ int fcntl_setlk64(unsigned int fd, struc + if (file_lock == NULL) + return -ENOLCK; + ++ vxd_assert(filp->f_xid == vx_current_xid(), ++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid()); ++ file_lock->fl_xid = filp->f_xid; ++ vx_locks_inc(file_lock); ++ + /* + * This might block, so we do it before checking the inode. + */ +@@ -1808,7 +1844,8 @@ again: + error = filp->f_op->lock(filp, cmd, file_lock); + else { + for (;;) { +- error = __posix_lock_file(inode, file_lock); ++ error = __posix_lock_file(inode, file_lock, ++ filp->f_xid); + if ((error != -EAGAIN) || (cmd == F_SETLK64)) + break; + error = wait_event_interruptible(file_lock->fl_wait, +@@ -2081,6 +2118,10 @@ int get_locks_status(char *buffer, char + list_for_each(tmp, &file_lock_list) { + struct list_head *btmp; + struct file_lock *fl = list_entry(tmp, struct file_lock, fl_link); ++ ++ if (!vx_check(fl->fl_xid, VX_IDENT|VX_WATCH)) ++ continue; ++ + lock_get_status(q, fl, ++i, ""); + move_lock_status(&q, &pos, offset); + +Index: linux-2.6.16/fs/namei.c +=================================================================== +--- linux-2.6.16.orig/fs/namei.c ++++ linux-2.6.16/fs/namei.c +@@ -32,6 +32,10 @@ + #include <linux/file.h> + #include <linux/fcntl.h> + #include <linux/namei.h> ++#include <linux/proc_fs.h> ++#include <linux/vserver/inode.h> ++#include <linux/vs_tag.h> ++#include <linux/vserver/debug.h> + #include <asm/namei.h> + #include <asm/uaccess.h> + +@@ -225,6 +229,24 @@ int generic_permission(struct inode *ino + return -EACCES; + } + ++static inline int dx_permission(struct inode *inode, int mask, struct nameidata *nd) ++{ ++ if (IS_BARRIER(inode) && !vx_check(0, VX_ADMIN)) { ++ vxwprintk(1, "xid=%d did hit the barrier.", ++ vx_current_xid()); ++ return -EACCES; ++ } ++ if (inode->i_tag == 0) ++ return 0; ++ if (dx_check(inode->i_tag, DX_ADMIN|DX_WATCH|DX_IDENT)) ++ return 0; ++ ++ vxwprintk(1, "xid=%d denied access to %p[#%d,%lu] »%s«.", ++ vx_current_xid(), inode, inode->i_tag, inode->i_ino, ++ vxd_path(nd->dentry, nd->mnt)); ++ return -EACCES; ++} ++ + int permission(struct inode *inode, int mask, struct nameidata *nd) + { + int retval, submask; +@@ -235,7 +257,7 @@ int permission(struct inode *inode, int + /* + * Nobody gets write access to a read-only fs. + */ +- if (IS_RDONLY(inode) && ++ if ((IS_RDONLY(inode) || (nd && MNT_IS_RDONLY(nd->mnt))) && + (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) + return -EROFS; + +@@ -249,6 +271,8 @@ int permission(struct inode *inode, int + + /* Ordinary permission routines do not understand MAY_APPEND. */ + submask = mask & ~MAY_APPEND; ++ if ((retval = dx_permission(inode, mask, nd))) ++ return retval; + if (inode->i_op && inode->i_op->permission) + retval = inode->i_op->permission(inode, submask, nd); + else +@@ -702,7 +726,8 @@ static __always_inline void follow_dotdo + if (nd->dentry == current->fs->root && + nd->mnt == current->fs->rootmnt) { + read_unlock(¤t->fs->lock); +- break; ++ /* for sane '/' avoid follow_mount() */ ++ return; + } + read_unlock(¤t->fs->lock); + spin_lock(&dcache_lock); +@@ -739,16 +764,34 @@ static int do_lookup(struct nameidata *n + { + struct vfsmount *mnt = nd->mnt; + struct dentry *dentry = __d_lookup(nd->dentry, name); ++ struct inode *inode; + + if (!dentry) + goto need_lookup; + if (dentry->d_op && dentry->d_op->d_revalidate) + goto need_revalidate; ++ inode = dentry->d_inode; ++ if (!inode) ++ goto done; ++ if (inode->i_sb->s_magic == PROC_SUPER_MAGIC) { ++ struct proc_dir_entry *de = PDE(inode); ++ ++ if (de && !vx_hide_check(0, de->vx_flags)) ++ goto hidden; ++ } ++ if (!dx_check(inode->i_tag, DX_WATCH|DX_ADMIN|DX_HOSTID|DX_IDENT)) ++ goto hidden; + done: + path->mnt = mnt; + path->dentry = dentry; + __follow_mount(path); + return 0; ++hidden: ++ vxwprintk(1, "xid=%d did lookup hidden %p[#%d,%lu] »%s«.", ++ vx_current_xid(), inode, inode->i_tag, inode->i_ino, ++ vxd_path(dentry, mnt)); ++ dput(dentry); ++ return -ENOENT; + + need_lookup: + dentry = real_lookup(nd->dentry, name, nd); +@@ -1345,7 +1388,8 @@ static inline int check_sticky(struct in + * 10. We don't allow removal of NFS sillyrenamed files; it's handled by + * nfs_async_unlink(). + */ +-static int may_delete(struct inode *dir,struct dentry *victim,int isdir) ++static int may_delete(struct inode *dir, struct dentry *victim, ++ int isdir, struct nameidata *nd) + { + int error; + +@@ -1354,13 +1398,13 @@ static int may_delete(struct inode *dir, + + BUG_ON(victim->d_parent->d_inode != dir); + +- error = permission(dir,MAY_WRITE | MAY_EXEC, NULL); ++ error = permission(dir,MAY_WRITE | MAY_EXEC, nd); + if (error) + return error; + if (IS_APPEND(dir)) + return -EPERM; + if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)|| +- IS_IMMUTABLE(victim->d_inode)) ++ IS_IXORUNLINK(victim->d_inode)) + return -EPERM; + if (isdir) { + if (!S_ISDIR(victim->d_inode->i_mode)) +@@ -1491,6 +1535,10 @@ int may_open(struct nameidata *nd, int a + if (S_ISDIR(inode->i_mode) && (flag & FMODE_WRITE)) + return -EISDIR; + ++#ifdef CONFIG_VSERVER_COWBL ++ if (IS_COW_LINK(inode) && (flag & FMODE_WRITE)) ++ return -EMLINK; ++#endif + error = vfs_permission(nd, acc_mode); + if (error) + return error; +@@ -1507,7 +1555,8 @@ int may_open(struct nameidata *nd, int a + return -EACCES; + + flag &= ~O_TRUNC; +- } else if (IS_RDONLY(inode) && (flag & FMODE_WRITE)) ++ } else if ((IS_RDONLY(inode) || MNT_IS_RDONLY(nd->mnt)) ++ && (flag & FMODE_WRITE)) + return -EROFS; + /* + * An append-only file must be opened in append mode for writing. +@@ -1555,6 +1604,8 @@ int may_open(struct nameidata *nd, int a + return 0; + } + ++int cow_break_link(struct dentry *dentry, const char *pathname); ++ + /* + * open_namei() + * +@@ -1577,6 +1628,11 @@ int open_namei(int dfd, const char *path + struct dentry *dir; + int count = 0; + ++#ifdef CONFIG_VSERVER_COWBL ++ int rflag = flag; ++ int rmode = mode; ++restart: ++#endif + acc_mode = ACC_MODE(flag); + + /* O_TRUNC implies we need access checks for write permissions */ +@@ -1670,6 +1726,18 @@ do_last: + goto exit; + ok: + error = may_open(nd, acc_mode, flag); ++#ifdef CONFIG_VSERVER_COWBL ++ if (error == -EMLINK) { ++ error = cow_break_link(path.dentry, pathname); ++ if (error) ++ goto exit; ++ path_release(nd); ++ vxdprintk(VXD_CBIT(misc, 2), "restarting open_namei() ..."); ++ flag = rflag; ++ mode = rmode; ++ goto restart; ++ } ++#endif + if (error) + goto exit; + return 0; +@@ -1773,9 +1841,10 @@ fail: + } + EXPORT_SYMBOL_GPL(lookup_create); + +-int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) ++int vfs_mknod(struct inode *dir, struct dentry *dentry, ++ int mode, dev_t dev, struct nameidata *nd) + { +- int error = may_create(dir, dentry, NULL); ++ int error = may_create(dir, dentry, nd); + + if (error) + return error; +@@ -1825,11 +1894,12 @@ asmlinkage long sys_mknodat(int dfd, con + error = vfs_create(nd.dentry->d_inode,dentry,mode,&nd); + break; + case S_IFCHR: case S_IFBLK: +- error = vfs_mknod(nd.dentry->d_inode,dentry,mode, +- new_decode_dev(dev)); ++ error = vfs_mknod(nd.dentry->d_inode, dentry, mode, ++ new_decode_dev(dev), &nd); + break; + case S_IFIFO: case S_IFSOCK: +- error = vfs_mknod(nd.dentry->d_inode,dentry,mode,0); ++ error = vfs_mknod(nd.dentry->d_inode, dentry, mode, ++ 0, &nd); + break; + case S_IFDIR: + error = -EPERM; +@@ -1852,9 +1922,10 @@ asmlinkage long sys_mknod(const char __u + return sys_mknodat(AT_FDCWD, filename, mode, dev); + } + +-int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) ++int vfs_mkdir(struct inode *dir, struct dentry *dentry, ++ int mode, struct nameidata *nd) + { +- int error = may_create(dir, dentry, NULL); ++ int error = may_create(dir, dentry, nd); + + if (error) + return error; +@@ -1893,7 +1964,8 @@ asmlinkage long sys_mkdirat(int dfd, con + if (!IS_ERR(dentry)) { + if (!IS_POSIXACL(nd.dentry->d_inode)) + mode &= ~current->fs->umask; +- error = vfs_mkdir(nd.dentry->d_inode, dentry, mode); ++ error = vfs_mkdir(nd.dentry->d_inode, dentry, ++ mode, &nd); + dput(dentry); + } + mutex_unlock(&nd.dentry->d_inode->i_mutex); +@@ -1938,9 +2010,10 @@ void dentry_unhash(struct dentry *dentry + spin_unlock(&dcache_lock); + } + +-int vfs_rmdir(struct inode *dir, struct dentry *dentry) ++int vfs_rmdir(struct inode *dir, struct dentry *dentry, ++ struct nameidata *nd) + { +- int error = may_delete(dir, dentry, 1); ++ int error = may_delete(dir, dentry, 1, nd); + + if (error) + return error; +@@ -2001,7 +2074,7 @@ static long do_rmdir(int dfd, const char + dentry = lookup_hash(&nd); + error = PTR_ERR(dentry); + if (!IS_ERR(dentry)) { +- error = vfs_rmdir(nd.dentry->d_inode, dentry); ++ error = vfs_rmdir(nd.dentry->d_inode, dentry, &nd); + dput(dentry); + } + mutex_unlock(&nd.dentry->d_inode->i_mutex); +@@ -2017,9 +2090,10 @@ asmlinkage long sys_rmdir(const char __u + return do_rmdir(AT_FDCWD, pathname); + } + +-int vfs_unlink(struct inode *dir, struct dentry *dentry) ++int vfs_unlink(struct inode *dir, struct dentry *dentry, ++ struct nameidata *nd) + { +- int error = may_delete(dir, dentry, 0); ++ int error = may_delete(dir, dentry, 0, nd); + + if (error) + return error; +@@ -2081,7 +2155,7 @@ static long do_unlinkat(int dfd, const c + inode = dentry->d_inode; + if (inode) + atomic_inc(&inode->i_count); +- error = vfs_unlink(nd.dentry->d_inode, dentry); ++ error = vfs_unlink(nd.dentry->d_inode, dentry, &nd); + exit2: + dput(dentry); + } +@@ -2116,9 +2190,10 @@ asmlinkage long sys_unlink(const char __ + return do_unlinkat(AT_FDCWD, pathname); + } + +-int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname, int mode) ++int vfs_symlink(struct inode *dir, struct dentry *dentry, ++ const char *oldname, int mode, struct nameidata *nd) + { +- int error = may_create(dir, dentry, NULL); ++ int error = may_create(dir, dentry, nd); + + if (error) + return error; +@@ -2159,7 +2234,8 @@ asmlinkage long sys_symlinkat(const char + dentry = lookup_create(&nd, 0); + error = PTR_ERR(dentry); + if (!IS_ERR(dentry)) { +- error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO); ++ error = vfs_symlink(nd.dentry->d_inode, dentry, ++ from, S_IALLUGO, &nd); + dput(dentry); + } + mutex_unlock(&nd.dentry->d_inode->i_mutex); +@@ -2176,7 +2252,8 @@ asmlinkage long sys_symlink(const char _ + return sys_symlinkat(oldname, AT_FDCWD, newname); + } + +-int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry) ++int vfs_link(struct dentry *old_dentry, struct inode *dir, ++ struct dentry *new_dentry, struct nameidata *nd) + { + struct inode *inode = old_dentry->d_inode; + int error; +@@ -2184,7 +2261,7 @@ int vfs_link(struct dentry *old_dentry, + if (!inode) + return -ENOENT; + +- error = may_create(dir, new_dentry, NULL); ++ error = may_create(dir, new_dentry, nd); + if (error) + return error; + +@@ -2194,7 +2271,7 @@ int vfs_link(struct dentry *old_dentry, + /* + * A link to an append-only or immutable file cannot be created. + */ +- if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) ++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode)) + return -EPERM; + if (!dir->i_op || !dir->i_op->link) + return -EPERM; +@@ -2251,7 +2328,8 @@ asmlinkage long sys_linkat(int olddfd, c + new_dentry = lookup_create(&nd, 0); + error = PTR_ERR(new_dentry); + if (!IS_ERR(new_dentry)) { +- error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry); ++ error = vfs_link(old_nd.dentry, nd.dentry->d_inode, ++ new_dentry, &nd); + dput(new_dentry); + } + mutex_unlock(&nd.dentry->d_inode->i_mutex); +@@ -2383,14 +2461,14 @@ int vfs_rename(struct inode *old_dir, st + if (old_dentry->d_inode == new_dentry->d_inode) + return 0; + +- error = may_delete(old_dir, old_dentry, is_dir); ++ error = may_delete(old_dir, old_dentry, is_dir, NULL); + if (error) + return error; + + if (!new_dentry->d_inode) + error = may_create(new_dir, new_dentry, NULL); + else +- error = may_delete(new_dir, new_dentry, is_dir); ++ error = may_delete(new_dir, new_dentry, is_dir, NULL); + if (error) + return error; + +@@ -2468,6 +2546,9 @@ static int do_rename(int olddfd, const c + error = -EINVAL; + if (old_dentry == trap) + goto exit4; ++ error = -EROFS; ++ if (MNT_IS_RDONLY(newnd.mnt)) ++ goto exit4; + new_dentry = lookup_hash(&newnd); + error = PTR_ERR(new_dentry); + if (IS_ERR(new_dentry)) +@@ -2561,6 +2642,125 @@ int vfs_follow_link(struct nameidata *nd + return __vfs_follow_link(nd, link); + } + ++ ++#ifdef CONFIG_VSERVER_COWBL ++ ++#include <linux/file.h> ++ ++int cow_break_link(struct dentry *dentry, const char *pathname) ++{ ++ int err = -EMLINK; ++ int ret, mode, pathlen; ++ struct nameidata old_nd, dir_nd; ++ struct dentry *old_dentry, *new_dentry; ++ struct vfsmount *old_mnt, *new_mnt; ++ struct file *old_file; ++ struct file *new_file; ++ char *to, *path, pad='\251'; ++ loff_t size; ++ ++ vxdprintk(VXD_CBIT(misc, 2), ++ "cow_break_link(%p,»%s«)", dentry, pathname); ++ path = kmalloc(PATH_MAX, GFP_KERNEL); ++ ++ ret = path_lookup(pathname, LOOKUP_FOLLOW, &old_nd); ++ vxdprintk(VXD_CBIT(misc, 2), "path_lookup(old): %d", ret); ++ old_dentry = old_nd.dentry; ++ old_mnt = old_nd.mnt; ++ mode = old_dentry->d_inode->i_mode; ++ ++ to = d_path(old_dentry, old_mnt, path, PATH_MAX-2); ++ pathlen = strlen(to); ++ vxdprintk(VXD_CBIT(misc, 2), "old path »%s«", to); ++ ++ to[pathlen+1] = 0; ++retry: ++ to[pathlen] = pad--; ++ if (pad <= '\240') ++ goto out_rel_old; ++ ++ vxdprintk(VXD_CBIT(misc, 2), "temp copy »%s«", to); ++ ret = path_lookup(to, ++ LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE, &dir_nd); ++ ++ /* this puppy downs the inode sem */ ++ new_dentry = lookup_create(&dir_nd, 0); ++ vxdprintk(VXD_CBIT(misc, 2), ++ "lookup_create(new): %p", new_dentry); ++ if (!new_dentry) { ++ path_release(&dir_nd); ++ goto retry; ++ } ++ ++ ret = vfs_create(dir_nd.dentry->d_inode, new_dentry, mode, &dir_nd); ++ vxdprintk(VXD_CBIT(misc, 2), ++ "vfs_create(new): %d", ret); ++ if (ret == -EEXIST) { ++ ++ mutex_unlock(&dir_nd.dentry->d_inode->i_mutex); ++ dput(new_dentry); ++ path_release(&dir_nd); ++ goto retry; ++ } ++ ++ new_mnt = dir_nd.mnt; ++ ++ dget(old_dentry); ++ mntget(old_mnt); ++ /* this one cleans up the dentry in case of failure */ ++ old_file = dentry_open(old_dentry, old_mnt, O_RDONLY); ++ vxdprintk(VXD_CBIT(misc, 2), ++ "dentry_open(old): %p", old_file); ++ if (!old_file) ++ goto out_rel_both; ++ ++ dget(new_dentry); ++ mntget(new_mnt); ++ /* this one cleans up the dentry in case of failure */ ++ new_file = dentry_open(new_dentry, new_mnt, O_WRONLY); ++ vxdprintk(VXD_CBIT(misc, 2), ++ "dentry_open(new): %p", new_file); ++ if (!new_file) ++ goto out_fput_old; ++ ++ size = i_size_read(old_file->f_dentry->d_inode); ++ ret = vfs_sendfile(new_file, old_file, NULL, size, 0); ++ vxdprintk(VXD_CBIT(misc, 2), "vfs_sendfile: %d", ret); ++ ++ if (ret < 0) ++ goto out_fput_both; ++ ++ ret = vfs_rename(dir_nd.dentry->d_inode, new_dentry, ++ old_nd.dentry->d_parent->d_inode, old_dentry); ++ vxdprintk(VXD_CBIT(misc, 2), "vfs_rename: %d", ret); ++ if (!ret) ++ err = 0; ++ ++out_fput_both: ++ vxdprintk(VXD_CBIT(misc, 3), ++ "fput(new_file=%p[#%d])", new_file, ++ atomic_read(&new_file->f_count)); ++ fput(new_file); ++ ++out_fput_old: ++ vxdprintk(VXD_CBIT(misc, 3), ++ "fput(old_file=%p[#%d])", old_file, ++ atomic_read(&old_file->f_count)); ++ fput(old_file); ++ ++out_rel_both: ++ mutex_unlock(&dir_nd.dentry->d_inode->i_mutex); ++ dput(new_dentry); ++ ++ path_release(&dir_nd); ++out_rel_old: ++ path_release(&old_nd); ++ kfree(path); ++ return err; ++} ++ ++#endif ++ + /* get the link contents into pagecache */ + static char *page_getlink(struct dentry * dentry, struct page **ppage) + { +Index: linux-2.6.16/fs/namespace.c +=================================================================== +--- linux-2.6.16.orig/fs/namespace.c ++++ linux-2.6.16/fs/namespace.c +@@ -23,6 +23,8 @@ + #include <linux/namei.h> + #include <linux/security.h> + #include <linux/mount.h> ++#include <linux/vserver/namespace.h> ++#include <linux/vserver/tag.h> + #include <asm/uaccess.h> + #include <asm/unistd.h> + #include "pnode.h" +@@ -241,6 +243,7 @@ static struct vfsmount *clone_mnt(struct + mnt->mnt_root = dget(root); + mnt->mnt_mountpoint = mnt->mnt_root; + mnt->mnt_parent = mnt; ++ mnt->mnt_tag = old->mnt_tag; + + if (flag & CL_SLAVE) { + list_add(&mnt->mnt_slave, &old->mnt_slave_list); +@@ -349,43 +352,85 @@ static inline void mangle(struct seq_fil + seq_escape(m, s, " \t\n\\"); + } + ++static int mnt_is_reachable(struct vfsmount *mnt) ++{ ++ struct vfsmount *root_mnt; ++ struct dentry *root, *point; ++ int ret; ++ ++ if (mnt == mnt->mnt_namespace->root) ++ return 1; ++ ++ spin_lock(&dcache_lock); ++ root_mnt = current->fs->rootmnt; ++ root = current->fs->root; ++ point = root; ++ ++ while ((mnt != mnt->mnt_parent) && (mnt != root_mnt)) { ++ point = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; ++ } ++ ++ ret = (mnt == root_mnt) && is_subdir(point, root); ++ ++ spin_unlock(&dcache_lock); ++ ++ return ret; ++} ++ + static int show_vfsmnt(struct seq_file *m, void *v) + { + struct vfsmount *mnt = v; + int err = 0; + static struct proc_fs_info { +- int flag; +- char *str; ++ int s_flag; ++ int mnt_flag; ++ char *set_str; ++ char *unset_str; + } fs_info[] = { +- { MS_SYNCHRONOUS, ",sync" }, +- { MS_DIRSYNC, ",dirsync" }, +- { MS_MANDLOCK, ",mand" }, +- { 0, NULL } +- }; +- static struct proc_fs_info mnt_info[] = { +- { MNT_NOSUID, ",nosuid" }, +- { MNT_NODEV, ",nodev" }, +- { MNT_NOEXEC, ",noexec" }, +- { MNT_NOATIME, ",noatime" }, +- { MNT_NODIRATIME, ",nodiratime" }, +- { 0, NULL } ++ { MS_RDONLY, MNT_RDONLY, "ro", "rw" }, ++ { MS_SYNCHRONOUS, 0, ",sync", NULL }, ++ { MS_DIRSYNC, 0, ",dirsync", NULL }, ++ { MS_MANDLOCK, 0, ",mand", NULL }, ++ { MS_TAGGED, 0, ",tag", NULL }, ++ { MS_NOATIME, MNT_NOATIME, ",noatime", NULL }, ++ { MS_NODIRATIME, MNT_NODIRATIME, ",nodiratime", NULL }, ++ { 0, MNT_NOSUID, ",nosuid", NULL }, ++ { 0, MNT_NODEV, ",nodev", NULL }, ++ { 0, MNT_NOEXEC, ",noexec", NULL }, ++ { 0, 0, NULL, NULL } + }; +- struct proc_fs_info *fs_infop; ++ struct proc_fs_info *p; ++ unsigned long s_flags = mnt->mnt_sb->s_flags; ++ int mnt_flags = mnt->mnt_flags; + +- mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none"); +- seq_putc(m, ' '); +- seq_path(m, mnt, mnt->mnt_root, " \t\n\\"); +- seq_putc(m, ' '); ++ if (vx_flags(VXF_HIDE_MOUNT, 0)) ++ return 0; ++ if (!mnt_is_reachable(mnt)) ++ return 0; ++ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH) && ++ mnt == current->fs->rootmnt) { ++ seq_puts(m, "/dev/root / "); ++ } else { ++ mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none"); ++ seq_putc(m, ' '); ++ seq_path(m, mnt, mnt->mnt_root, " \t\n\\"); ++ seq_putc(m, ' '); ++ } + mangle(m, mnt->mnt_sb->s_type->name); +- seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? " ro" : " rw"); +- for (fs_infop = fs_info; fs_infop->flag; fs_infop++) { +- if (mnt->mnt_sb->s_flags & fs_infop->flag) +- seq_puts(m, fs_infop->str); +- } +- for (fs_infop = mnt_info; fs_infop->flag; fs_infop++) { +- if (mnt->mnt_flags & fs_infop->flag) +- seq_puts(m, fs_infop->str); ++ seq_putc(m, ' '); ++ for (p = fs_info; (p->s_flag | p->mnt_flag) ; p++) { ++ if ((s_flags & p->s_flag) || (mnt_flags & p->mnt_flag)) { ++ if (p->set_str) ++ seq_puts(m, p->set_str); ++ } else { ++ if (p->unset_str) ++ seq_puts(m, p->unset_str); ++ } + } ++ if (mnt->mnt_flags & MNT_TAGID) ++ seq_printf(m, ",tag=%d", mnt->mnt_tag); + if (mnt->mnt_sb->s_op->show_options) + err = mnt->mnt_sb->s_op->show_options(m, mnt); + seq_puts(m, " 0 0\n"); +@@ -475,15 +520,11 @@ void release_mounts(struct list_head *he + } + } + +-void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill) ++static inline void __umount_list(struct vfsmount *mnt, ++ int propagate, struct list_head *kill) + { + struct vfsmount *p; + +- for (p = mnt; p; p = next_mnt(p, mnt)) { +- list_del(&p->mnt_hash); +- list_add(&p->mnt_hash, kill); +- } +- + if (propagate) + propagate_umount(kill); + +@@ -499,6 +540,33 @@ void umount_tree(struct vfsmount *mnt, i + } + } + ++void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill) ++{ ++ struct vfsmount *p; ++ ++ for (p = mnt; p; p = next_mnt(p, mnt)) { ++ list_del(&p->mnt_hash); ++ list_add(&p->mnt_hash, kill); ++ // p->mnt_namespace = NULL; ++ } ++ __umount_list(mnt, propagate, kill); ++} ++ ++void umount_unused(struct vfsmount *mnt, struct fs_struct *fs) ++{ ++ struct vfsmount *p; ++ LIST_HEAD(kill); ++ ++ for (p = mnt; p; p = next_mnt(p, mnt)) { ++ if (p == fs->rootmnt || p == fs->pwdmnt) ++ continue; ++ list_del(&p->mnt_list); ++ list_add(&p->mnt_list, &kill); ++ p->mnt_namespace = NULL; ++ } ++ __umount_list(mnt, 0, &kill); ++} ++ + static int do_umount(struct vfsmount *mnt, int flags) + { + struct super_block *sb = mnt->mnt_sb; +@@ -559,7 +627,7 @@ static int do_umount(struct vfsmount *mn + down_write(&sb->s_umount); + if (!(sb->s_flags & MS_RDONLY)) { + lock_kernel(); +- DQUOT_OFF(sb); ++ DQUOT_OFF(sb->s_dqh); + retval = do_remount_sb(sb, MS_RDONLY, NULL, 0); + unlock_kernel(); + } +@@ -608,7 +676,7 @@ asmlinkage long sys_umount(char __user * + goto dput_and_out; + + retval = -EPERM; +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) + goto dput_and_out; + + retval = do_umount(nd.mnt, flags); +@@ -634,6 +702,8 @@ static int mount_is_safe(struct nameidat + { + if (capable(CAP_SYS_ADMIN)) + return 0; ++ if (vx_ccaps(VXC_SECURE_MOUNT)) ++ return 0; + return -EPERM; + #ifdef notyet + if (S_ISLNK(nd->dentry->d_inode->i_mode)) +@@ -861,11 +931,13 @@ static int do_change_type(struct nameida + /* + * do loopback mount. + */ +-static int do_loopback(struct nameidata *nd, char *old_name, int recurse) ++static int do_loopback(struct nameidata *nd, char *old_name, tag_t tag, ++ unsigned long flags, int mnt_flags) + { + struct nameidata old_nd; + struct vfsmount *mnt = NULL; + int err = mount_is_safe(nd); ++ int recurse = flags & MS_REC; + if (err) + return err; + if (!old_name || !*old_name) +@@ -891,6 +963,12 @@ static int do_loopback(struct nameidata + if (!mnt) + goto out; + ++ mnt->mnt_flags = mnt_flags; ++ if (flags & MS_TAGID) { ++ mnt->mnt_tag = tag; ++ mnt->mnt_flags |= MNT_TAGID; ++ } ++ + err = graft_tree(mnt, nd); + if (err) { + LIST_HEAD(umount_list); +@@ -899,6 +977,7 @@ static int do_loopback(struct nameidata + spin_unlock(&vfsmount_lock); + release_mounts(&umount_list); + } ++ mnt->mnt_flags = mnt_flags; + + out: + up_write(&namespace_sem); +@@ -912,12 +991,12 @@ out: + * on it - tough luck. + */ + static int do_remount(struct nameidata *nd, int flags, int mnt_flags, +- void *data) ++ void *data, xid_t xid) + { + int err; + struct super_block *sb = nd->mnt->mnt_sb; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_REMOUNT)) + return -EPERM; + + if (!check_mnt(nd->mnt)) +@@ -951,7 +1030,7 @@ static int do_move_mount(struct nameidat + struct nameidata old_nd, parent_nd; + struct vfsmount *p; + int err = 0; +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) + return -EPERM; + if (!old_name || !*old_name) + return -EINVAL; +@@ -1031,7 +1110,7 @@ static int do_new_mount(struct nameidata + return -EINVAL; + + /* we need capabilities... */ +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) + return -EPERM; + + mnt = do_kern_mount(type, flags, name, data); +@@ -1269,6 +1348,7 @@ long do_mount(char *dev_name, char *dir_ + struct nameidata nd; + int retval = 0; + int mnt_flags = 0; ++ tag_t tag = 0; + + /* Discard magic */ + if ((flags & MS_MGC_MSK) == MS_MGC_VAL) +@@ -1284,7 +1364,19 @@ long do_mount(char *dev_name, char *dir_ + if (data_page) + ((char *)data_page)[PAGE_SIZE - 1] = 0; + ++#ifdef CONFIG_PROPAGATE ++ retval = dx_parse_tag(data_page, &tag, 1); ++ if (retval) { ++ mnt_flags |= MNT_TAGID; ++ /* bind and re-mounts get the tag flag */ ++ if (flags & (MS_BIND|MS_REMOUNT)) ++ flags |= MS_TAGID; ++ } ++#endif ++ + /* Separate the per-mountpoint flags */ ++ if (flags & MS_RDONLY) ++ mnt_flags |= MNT_RDONLY; + if (flags & MS_NOSUID) + mnt_flags |= MNT_NOSUID; + if (flags & MS_NODEV) +@@ -1296,6 +1388,8 @@ long do_mount(char *dev_name, char *dir_ + if (flags & MS_NODIRATIME) + mnt_flags |= MNT_NODIRATIME; + ++ if (vx_ccaps(VXC_SECURE_MOUNT)) ++ mnt_flags |= MNT_NODEV; + flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | + MS_NOATIME | MS_NODIRATIME); + +@@ -1310,9 +1404,9 @@ long do_mount(char *dev_name, char *dir_ + + if (flags & MS_REMOUNT) + retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags, +- data_page); ++ data_page, tag); + else if (flags & MS_BIND) +- retval = do_loopback(&nd, dev_name, flags & MS_REC); ++ retval = do_loopback(&nd, dev_name, tag, flags, mnt_flags); + else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE)) + retval = do_change_type(&nd, flags); + else if (flags & MS_MOVE) +@@ -1410,7 +1504,7 @@ int copy_namespace(int flags, struct tas + if (!(flags & CLONE_NEWNS)) + return 0; + +- if (!capable(CAP_SYS_ADMIN)) { ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) { + err = -EPERM; + goto out; + } +Index: linux-2.6.16/fs/nfs/dir.c +=================================================================== +--- linux-2.6.16.orig/fs/nfs/dir.c ++++ linux-2.6.16/fs/nfs/dir.c +@@ -28,9 +28,11 @@ + #include <linux/sunrpc/clnt.h> + #include <linux/nfs_fs.h> + #include <linux/nfs_mount.h> ++#include <linux/mount.h> + #include <linux/pagemap.h> + #include <linux/smp_lock.h> + #include <linux/namei.h> ++#include <linux/vserver/tag.h> + + #include "nfs4_fs.h" + #include "delegation.h" +@@ -869,6 +871,7 @@ static struct dentry *nfs_lookup(struct + inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr); + if (!inode) + goto out_unlock; ++ dx_propagate_tag(nd, inode); + no_entry: + res = d_add_unique(dentry, inode); + if (res != NULL) +@@ -902,7 +905,8 @@ static int is_atomic_open(struct inode * + if (nd->flags & LOOKUP_DIRECTORY) + return 0; + /* Are we trying to write to a read only partition? */ +- if (IS_RDONLY(dir) && (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE))) ++ if ((IS_RDONLY(dir) || MNT_IS_RDONLY(nd->mnt)) && ++ (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE))) + return 0; + return 1; + } +Index: linux-2.6.16/fs/nfs/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/nfs/inode.c ++++ linux-2.6.16/fs/nfs/inode.c +@@ -35,6 +35,7 @@ + #include <linux/mount.h> + #include <linux/nfs_idmap.h> + #include <linux/vfs.h> ++#include <linux/vserver/tag.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +@@ -336,12 +337,16 @@ nfs_sb_init(struct super_block *sb, rpc_ + } + server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD; + ++ if (server->flags & NFS_MOUNT_TAGGED) ++ sb->s_flags |= MS_TAGGED; ++ + sb->s_maxbytes = fsinfo.maxfilesize; + if (sb->s_maxbytes > MAX_LFS_FILESIZE) + sb->s_maxbytes = MAX_LFS_FILESIZE; + + server->client->cl_intr = (server->flags & NFS_MOUNT_INTR) ? 1 : 0; + server->client->cl_softrtry = (server->flags & NFS_MOUNT_SOFT) ? 1 : 0; ++ server->client->cl_tag = (server->flags & NFS_MOUNT_TAGGED) ? 1 : 0; + + /* We're airborne Set socket buffersize */ + rpc_setbufsize(server->client, server->wsize + 100, server->rsize + 100); +@@ -413,6 +418,7 @@ nfs_create_client(struct nfs_server *ser + + clnt->cl_intr = 1; + clnt->cl_softrtry = 1; ++ clnt->cl_tag = 1; + + return clnt; + +@@ -593,6 +599,7 @@ static int nfs_show_options(struct seq_f + { NFS_MOUNT_NOAC, ",noac", "" }, + { NFS_MOUNT_NONLM, ",nolock", ",lock" }, + { NFS_MOUNT_NOACL, ",noacl", "" }, ++ { NFS_MOUNT_TAGGED, ",tag", "" }, + { 0, NULL, NULL } + }; + struct proc_nfs_info *nfs_infop; +@@ -805,8 +812,10 @@ nfs_fhget(struct super_block *sb, struct + nfsi->change_attr = fattr->change_attr; + inode->i_size = nfs_size_to_loff_t(fattr->size); + inode->i_nlink = fattr->nlink; +- inode->i_uid = fattr->uid; +- inode->i_gid = fattr->gid; ++ inode->i_uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid); ++ inode->i_gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid); ++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0); ++ /* maybe fattr->xid someday */ + if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) { + /* + * report the blocks in 512byte units +@@ -897,6 +906,8 @@ void nfs_setattr_update_inode(struct ino + inode->i_uid = attr->ia_uid; + if ((attr->ia_valid & ATTR_GID) != 0) + inode->i_gid = attr->ia_gid; ++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode)) ++ inode->i_tag = attr->ia_tag; + spin_lock(&inode->i_lock); + NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + spin_unlock(&inode->i_lock); +@@ -1294,6 +1305,9 @@ static int nfs_check_inode_attributes(st + struct nfs_inode *nfsi = NFS_I(inode); + loff_t cur_size, new_isize; + int data_unstable; ++ uid_t uid; ++ gid_t gid; ++ tag_t tag; + + + if ((fattr->valid & NFS_ATTR_FATTR) == 0) +@@ -1333,10 +1347,15 @@ static int nfs_check_inode_attributes(st + nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE; + } + ++ uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid); ++ gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid); ++ tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0); ++ + /* Have any file permissions changed? */ + if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) +- || inode->i_uid != fattr->uid +- || inode->i_gid != fattr->gid) ++ || inode->i_uid != uid ++ || inode->i_gid != gid ++ || inode->i_tag != tag) + nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; + + /* Has the link count changed? */ +@@ -1420,6 +1439,9 @@ static int nfs_update_inode(struct inode + loff_t cur_isize, new_isize; + unsigned int invalid = 0; + int data_stable; ++ uid_t uid; ++ gid_t gid; ++ tag_t tag; + + dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n", + __FUNCTION__, inode->i_sb->s_id, inode->i_ino, +@@ -1498,15 +1520,21 @@ static int nfs_update_inode(struct inode + } + memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime)); + ++ uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid); ++ gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid); ++ tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0); ++ + if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) || +- inode->i_uid != fattr->uid || +- inode->i_gid != fattr->gid) ++ inode->i_uid != uid || ++ inode->i_gid != gid || ++ inode->i_tag != tag) + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + + inode->i_mode = fattr->mode; + inode->i_nlink = fattr->nlink; +- inode->i_uid = fattr->uid; +- inode->i_gid = fattr->gid; ++ inode->i_uid = uid; ++ inode->i_gid = gid; ++ inode->i_tag = tag; + + if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) { + /* +Index: linux-2.6.16/fs/nfs/nfs3xdr.c +=================================================================== +--- linux-2.6.16.orig/fs/nfs/nfs3xdr.c ++++ linux-2.6.16/fs/nfs/nfs3xdr.c +@@ -22,6 +22,7 @@ + #include <linux/nfs3.h> + #include <linux/nfs_fs.h> + #include <linux/nfsacl.h> ++#include <linux/vserver/tag.h> + + #define NFSDBG_FACILITY NFSDBG_XDR + +@@ -178,7 +179,7 @@ xdr_decode_fattr(u32 *p, struct nfs_fatt + } + + static inline u32 * +-xdr_encode_sattr(u32 *p, struct iattr *attr) ++xdr_encode_sattr(u32 *p, struct iattr *attr, int tag) + { + if (attr->ia_valid & ATTR_MODE) { + *p++ = xdr_one; +@@ -186,15 +187,17 @@ xdr_encode_sattr(u32 *p, struct iattr *a + } else { + *p++ = xdr_zero; + } +- if (attr->ia_valid & ATTR_UID) { ++ if (attr->ia_valid & ATTR_UID || ++ (tag && (attr->ia_valid & ATTR_TAG))) { + *p++ = xdr_one; +- *p++ = htonl(attr->ia_uid); ++ *p++ = htonl(TAGINO_UID(tag, attr->ia_uid, attr->ia_tag)); + } else { + *p++ = xdr_zero; + } +- if (attr->ia_valid & ATTR_GID) { ++ if (attr->ia_valid & ATTR_GID || ++ (tag && (attr->ia_valid & ATTR_TAG))) { + *p++ = xdr_one; +- *p++ = htonl(attr->ia_gid); ++ *p++ = htonl(TAGINO_GID(tag, attr->ia_gid, attr->ia_tag)); + } else { + *p++ = xdr_zero; + } +@@ -279,7 +282,8 @@ static int + nfs3_xdr_sattrargs(struct rpc_rqst *req, u32 *p, struct nfs3_sattrargs *args) + { + p = xdr_encode_fhandle(p, args->fh); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tag); + *p++ = htonl(args->guard); + if (args->guard) + p = xdr_encode_time3(p, &args->guardtime); +@@ -370,7 +374,8 @@ nfs3_xdr_createargs(struct rpc_rqst *req + *p++ = args->verifier[0]; + *p++ = args->verifier[1]; + } else +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tag); + + req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); + return 0; +@@ -384,7 +389,8 @@ nfs3_xdr_mkdirargs(struct rpc_rqst *req, + { + p = xdr_encode_fhandle(p, args->fh); + p = xdr_encode_array(p, args->name, args->len); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tag); + req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); + return 0; + } +@@ -397,7 +403,8 @@ nfs3_xdr_symlinkargs(struct rpc_rqst *re + { + p = xdr_encode_fhandle(p, args->fromfh); + p = xdr_encode_array(p, args->fromname, args->fromlen); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tag); + p = xdr_encode_array(p, args->topath, args->tolen); + req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); + return 0; +@@ -412,7 +419,8 @@ nfs3_xdr_mknodargs(struct rpc_rqst *req, + p = xdr_encode_fhandle(p, args->fh); + p = xdr_encode_array(p, args->name, args->len); + *p++ = htonl(args->type); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tag); + if (args->type == NF3CHR || args->type == NF3BLK) { + *p++ = htonl(MAJOR(args->rdev)); + *p++ = htonl(MINOR(args->rdev)); +Index: linux-2.6.16/fs/nfs/nfsroot.c +=================================================================== +--- linux-2.6.16.orig/fs/nfs/nfsroot.c ++++ linux-2.6.16/fs/nfs/nfsroot.c +@@ -87,6 +87,7 @@ + #include <linux/root_dev.h> + #include <net/ipconfig.h> + #include <linux/parser.h> ++#include <linux/vs_cvirt.h> + + /* Define this to allow debugging output */ + #undef NFSROOT_DEBUG +@@ -119,12 +120,12 @@ static int mount_port __initdata = 0; / + enum { + /* Options that take integer arguments */ + Opt_port, Opt_rsize, Opt_wsize, Opt_timeo, Opt_retrans, Opt_acregmin, +- Opt_acregmax, Opt_acdirmin, Opt_acdirmax, ++ Opt_acregmax, Opt_acdirmin, Opt_acdirmax, Opt_tagid, + /* Options that take no arguments */ + Opt_soft, Opt_hard, Opt_intr, + Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac, + Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp, +- Opt_acl, Opt_noacl, ++ Opt_acl, Opt_noacl, Opt_tag, Opt_notag, + /* Error token */ + Opt_err + }; +@@ -161,6 +162,10 @@ static match_table_t __initdata tokens = + {Opt_tcp, "tcp"}, + {Opt_acl, "acl"}, + {Opt_noacl, "noacl"}, ++ {Opt_tag, "tag"}, ++ {Opt_notag, "notag"}, ++ {Opt_tagid, "tagid=%u"}, ++ {Opt_tag, "tagxid"}, + {Opt_err, NULL} + + }; +@@ -275,6 +280,20 @@ static int __init root_nfs_parse(char *n + case Opt_noacl: + nfs_data.flags |= NFS_MOUNT_NOACL; + break; ++#ifndef CONFIG_TAGGING_NONE ++ case Opt_tag: ++ nfs_data.flags |= NFS_MOUNT_TAGGED; ++ break; ++ case Opt_notag: ++ nfs_data.flags &= ~NFS_MOUNT_TAGGED; ++ break; ++#endif ++#ifdef CONFIG_PROPAGATE ++ case Opt_tagid: ++ /* use args[0] */ ++ nfs_data.flags |= NFS_MOUNT_TAGGED; ++ break; ++#endif + default: + printk(KERN_WARNING "Root-NFS: unknown " + "option: %s\n", p); +@@ -312,7 +331,7 @@ static int __init root_nfs_name(char *na + /* Override them by options set on kernel command-line */ + root_nfs_parse(name, buf); + +- cp = system_utsname.nodename; ++ cp = vx_new_uts(nodename); + if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) { + printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n"); + return -1; +Index: linux-2.6.16/fs/nfsd/auth.c +=================================================================== +--- linux-2.6.16.orig/fs/nfsd/auth.c ++++ linux-2.6.16/fs/nfsd/auth.c +@@ -9,6 +9,7 @@ + #include <linux/sunrpc/svc.h> + #include <linux/sunrpc/svcauth.h> + #include <linux/nfsd/nfsd.h> ++#include <linux/vserver/tag.h> + + #define CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE)) + +@@ -42,18 +43,21 @@ int nfsd_setuser(struct svc_rqst *rqstp, + } + + if (cred->cr_uid != (uid_t) -1) +- current->fsuid = cred->cr_uid; ++ current->fsuid = INOTAG_UID(DX_TAG_NFSD, cred->cr_uid, cred->cr_gid); + else + current->fsuid = exp->ex_anon_uid; + if (cred->cr_gid != (gid_t) -1) +- current->fsgid = cred->cr_gid; ++ current->fsgid = INOTAG_GID(DX_TAG_NFSD, cred->cr_uid, cred->cr_gid); + else + current->fsgid = exp->ex_anon_gid; + ++ /* this desperately needs a tag :) */ ++ current->xid = (xid_t)INOTAG_TAG(DX_TAG_NFSD, cred->cr_uid, cred->cr_gid, 0); ++ + if (!cred->cr_group_info) + return -ENOMEM; + ret = set_current_groups(cred->cr_group_info); +- if ((cred->cr_uid)) { ++ if (INOTAG_UID(DX_TAG_NFSD, cred->cr_uid, cred->cr_gid)) { + cap_t(current->cap_effective) &= ~CAP_NFSD_MASK; + } else { + cap_t(current->cap_effective) |= (CAP_NFSD_MASK & +Index: linux-2.6.16/fs/nfsd/nfs3xdr.c +=================================================================== +--- linux-2.6.16.orig/fs/nfsd/nfs3xdr.c ++++ linux-2.6.16/fs/nfsd/nfs3xdr.c +@@ -21,6 +21,7 @@ + #include <linux/sunrpc/svc.h> + #include <linux/nfsd/nfsd.h> + #include <linux/nfsd/xdr3.h> ++#include <linux/vserver/tag.h> + + #define NFSDDBG_FACILITY NFSDDBG_XDR + +@@ -111,6 +112,8 @@ static inline u32 * + decode_sattr3(u32 *p, struct iattr *iap) + { + u32 tmp; ++ uid_t uid = 0; ++ gid_t gid = 0; + + iap->ia_valid = 0; + +@@ -120,12 +123,15 @@ decode_sattr3(u32 *p, struct iattr *iap) + } + if (*p++) { + iap->ia_valid |= ATTR_UID; +- iap->ia_uid = ntohl(*p++); ++ uid = ntohl(*p++); + } + if (*p++) { + iap->ia_valid |= ATTR_GID; +- iap->ia_gid = ntohl(*p++); ++ gid = ntohl(*p++); + } ++ iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid); ++ iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid); ++ iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0); + if (*p++) { + u64 newsize; + +@@ -163,8 +169,10 @@ encode_fattr3(struct svc_rqst *rqstp, u3 + *p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]); + *p++ = htonl((u32) stat->mode); + *p++ = htonl((u32) stat->nlink); +- *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid)); +- *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid)); ++ *p++ = htonl((u32) nfsd_ruid(rqstp, ++ TAGINO_UID(DX_TAG(dentry->d_inode), stat->uid, stat->tag))); ++ *p++ = htonl((u32) nfsd_rgid(rqstp, ++ TAGINO_GID(DX_TAG(dentry->d_inode), stat->gid, stat->tag))); + if (S_ISLNK(stat->mode) && stat->size > NFS3_MAXPATHLEN) { + p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN); + } else { +Index: linux-2.6.16/fs/nfsd/nfs4recover.c +=================================================================== +--- linux-2.6.16.orig/fs/nfsd/nfs4recover.c ++++ linux-2.6.16/fs/nfsd/nfs4recover.c +@@ -155,7 +155,7 @@ nfsd4_create_clid_dir(struct nfs4_client + dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n"); + goto out_put; + } +- status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU); ++ status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU, NULL); + out_put: + dput(dentry); + out_unlock: +@@ -259,7 +259,7 @@ nfsd4_remove_clid_file(struct dentry *di + return -EINVAL; + } + mutex_lock(&dir->d_inode->i_mutex); +- status = vfs_unlink(dir->d_inode, dentry); ++ status = vfs_unlink(dir->d_inode, dentry, NULL); + mutex_unlock(&dir->d_inode->i_mutex); + return status; + } +@@ -274,7 +274,7 @@ nfsd4_clear_clid_dir(struct dentry *dir, + * a kernel from the future.... */ + nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file); + mutex_lock(&dir->d_inode->i_mutex); +- status = vfs_rmdir(dir->d_inode, dentry); ++ status = vfs_rmdir(dir->d_inode, dentry, NULL); + mutex_unlock(&dir->d_inode->i_mutex); + return status; + } +Index: linux-2.6.16/fs/nfsd/nfs4xdr.c +=================================================================== +--- linux-2.6.16.orig/fs/nfsd/nfs4xdr.c ++++ linux-2.6.16/fs/nfsd/nfs4xdr.c +@@ -57,6 +57,7 @@ + #include <linux/nfsd_idmap.h> + #include <linux/nfs4.h> + #include <linux/nfs4_acl.h> ++#include <linux/vserver/tag.h> + + #define NFSDDBG_FACILITY NFSDDBG_XDR + +@@ -1561,14 +1562,18 @@ out_acl: + WRITE32(stat.nlink); + } + if (bmval1 & FATTR4_WORD1_OWNER) { +- status = nfsd4_encode_user(rqstp, stat.uid, &p, &buflen); ++ status = nfsd4_encode_user(rqstp, ++ TAGINO_UID(DX_TAG(dentry->d_inode), ++ stat.uid, stat.tag), &p, &buflen); + if (status == nfserr_resource) + goto out_resource; + if (status) + goto out; + } + if (bmval1 & FATTR4_WORD1_OWNER_GROUP) { +- status = nfsd4_encode_group(rqstp, stat.gid, &p, &buflen); ++ status = nfsd4_encode_group(rqstp, ++ TAGINO_GID(DX_TAG(dentry->d_inode), ++ stat.gid, stat.tag), &p, &buflen); + if (status == nfserr_resource) + goto out_resource; + if (status) +Index: linux-2.6.16/fs/nfsd/nfsxdr.c +=================================================================== +--- linux-2.6.16.orig/fs/nfsd/nfsxdr.c ++++ linux-2.6.16/fs/nfsd/nfsxdr.c +@@ -15,6 +15,7 @@ + #include <linux/nfsd/nfsd.h> + #include <linux/nfsd/xdr.h> + #include <linux/mm.h> ++#include <linux/vserver/tag.h> + + #define NFSDDBG_FACILITY NFSDDBG_XDR + +@@ -102,6 +103,8 @@ static inline u32 * + decode_sattr(u32 *p, struct iattr *iap) + { + u32 tmp, tmp1; ++ uid_t uid = 0; ++ gid_t gid = 0; + + iap->ia_valid = 0; + +@@ -115,12 +118,15 @@ decode_sattr(u32 *p, struct iattr *iap) + } + if ((tmp = ntohl(*p++)) != (u32)-1) { + iap->ia_valid |= ATTR_UID; +- iap->ia_uid = tmp; ++ uid = tmp; + } + if ((tmp = ntohl(*p++)) != (u32)-1) { + iap->ia_valid |= ATTR_GID; +- iap->ia_gid = tmp; ++ gid = tmp; + } ++ iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid); ++ iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid); ++ iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0); + if ((tmp = ntohl(*p++)) != (u32)-1) { + iap->ia_valid |= ATTR_SIZE; + iap->ia_size = tmp; +@@ -164,8 +170,10 @@ encode_fattr(struct svc_rqst *rqstp, u32 + *p++ = htonl(nfs_ftypes[type >> 12]); + *p++ = htonl((u32) stat->mode); + *p++ = htonl((u32) stat->nlink); +- *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid)); +- *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid)); ++ *p++ = htonl((u32) nfsd_ruid(rqstp, ++ TAGINO_UID(DX_TAG(dentry->d_inode), stat->uid, stat->tag))); ++ *p++ = htonl((u32) nfsd_rgid(rqstp, ++ TAGINO_GID(DX_TAG(dentry->d_inode), stat->gid, stat->tag))); + + if (S_ISLNK(type) && stat->size > NFS_MAXPATHLEN) { + *p++ = htonl(NFS_MAXPATHLEN); +Index: linux-2.6.16/fs/nfsd/vfs.c +=================================================================== +--- linux-2.6.16.orig/fs/nfsd/vfs.c ++++ linux-2.6.16/fs/nfsd/vfs.c +@@ -1160,13 +1160,13 @@ nfsd_create(struct svc_rqst *rqstp, stru + err = vfs_create(dirp, dchild, iap->ia_mode, NULL); + break; + case S_IFDIR: +- err = vfs_mkdir(dirp, dchild, iap->ia_mode); ++ err = vfs_mkdir(dirp, dchild, iap->ia_mode, NULL); + break; + case S_IFCHR: + case S_IFBLK: + case S_IFIFO: + case S_IFSOCK: +- err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev); ++ err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev, NULL); + break; + default: + printk("nfsd: bad file type %o in nfsd_create\n", type); +@@ -1446,11 +1446,13 @@ nfsd_symlink(struct svc_rqst *rqstp, str + else { + strncpy(path_alloced, path, plen); + path_alloced[plen] = 0; +- err = vfs_symlink(dentry->d_inode, dnew, path_alloced, mode); ++ err = vfs_symlink(dentry->d_inode, dnew, ++ path_alloced, mode, NULL); + kfree(path_alloced); + } + } else +- err = vfs_symlink(dentry->d_inode, dnew, path, mode); ++ err = vfs_symlink(dentry->d_inode, dnew, ++ path, mode, NULL); + + if (!err) + if (EX_ISSYNC(fhp->fh_export)) +@@ -1508,7 +1510,7 @@ nfsd_link(struct svc_rqst *rqstp, struct + dold = tfhp->fh_dentry; + dest = dold->d_inode; + +- err = vfs_link(dold, dirp, dnew); ++ err = vfs_link(dold, dirp, dnew, NULL); + if (!err) { + if (EX_ISSYNC(ffhp->fh_export)) { + err = nfserrno(nfsd_sync_dir(ddir)); +@@ -1670,9 +1672,9 @@ nfsd_unlink(struct svc_rqst *rqstp, stru + err = -EPERM; + } else + #endif +- err = vfs_unlink(dirp, rdentry); ++ err = vfs_unlink(dirp, rdentry, NULL); + } else { /* It's RMDIR */ +- err = vfs_rmdir(dirp, rdentry); ++ err = vfs_rmdir(dirp, rdentry, NULL); + } + + dput(rdentry); +@@ -1781,7 +1783,8 @@ nfsd_permission(struct svc_export *exp, + */ + if (!(acc & MAY_LOCAL_ACCESS)) + if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) { +- if (EX_RDONLY(exp) || IS_RDONLY(inode)) ++ if (EX_RDONLY(exp) || IS_RDONLY(inode) ++ || MNT_IS_RDONLY(exp->ex_mnt)) + return nfserr_rofs; + if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode)) + return nfserr_perm; +Index: linux-2.6.16/fs/open.c +=================================================================== +--- linux-2.6.16.orig/fs/open.c ++++ linux-2.6.16/fs/open.c +@@ -27,6 +27,9 @@ + #include <linux/pagemap.h> + #include <linux/syscalls.h> + #include <linux/rcupdate.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/tag.h> + + #include <asm/unistd.h> + +@@ -45,6 +48,8 @@ int vfs_statfs(struct super_block *sb, s + if (retval == 0 && buf->f_frsize == 0) + buf->f_frsize = buf->f_bsize; + } ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ vx_vsi_statfs(sb, buf); + } + return retval; + } +@@ -248,7 +253,7 @@ static long do_sys_truncate(const char _ + goto dput_and_out; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + error = -EPERM; +@@ -372,7 +377,7 @@ asmlinkage long sys_utime(char __user * + inode = nd.dentry->d_inode; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + /* Don't worry, the checks are done in inode_change_ok() */ +@@ -429,7 +434,7 @@ long do_utimes(int dfd, char __user *fil + inode = nd.dentry->d_inode; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + /* Don't worry, the checks are done in inode_change_ok() */ +@@ -516,7 +521,8 @@ asmlinkage long sys_faccessat(int dfd, c + if (!res) { + res = vfs_permission(&nd, mode); + /* SuS v2 requires we report a read only fs too */ +- if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode) ++ if(!res && (mode & S_IWOTH) ++ && (IS_RDONLY(nd.dentry->d_inode) || MNT_IS_RDONLY(nd.mnt)) + && !special_file(nd.dentry->d_inode->i_mode)) + res = -EROFS; + path_release(&nd); +@@ -627,7 +633,7 @@ asmlinkage long sys_fchmod(unsigned int + inode = dentry->d_inode; + + err = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(file->f_vfsmnt)) + goto out_putf; + err = -EPERM; + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) +@@ -660,7 +666,7 @@ asmlinkage long sys_fchmodat(int dfd, co + inode = nd.dentry->d_inode; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + error = -EPERM; +@@ -686,7 +692,8 @@ asmlinkage long sys_chmod(const char __u + return sys_fchmodat(AT_FDCWD, filename, mode); + } + +-static int chown_common(struct dentry * dentry, uid_t user, gid_t group) ++static int chown_common(struct dentry *dentry, struct vfsmount *mnt, ++ uid_t user, gid_t group) + { + struct inode * inode; + int error; +@@ -698,7 +705,7 @@ static int chown_common(struct dentry * + goto out; + } + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) + goto out; + error = -EPERM; + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) +@@ -706,11 +713,11 @@ static int chown_common(struct dentry * + newattrs.ia_valid = ATTR_CTIME; + if (user != (uid_t) -1) { + newattrs.ia_valid |= ATTR_UID; +- newattrs.ia_uid = user; ++ newattrs.ia_uid = dx_map_uid(user); + } + if (group != (gid_t) -1) { + newattrs.ia_valid |= ATTR_GID; +- newattrs.ia_gid = group; ++ newattrs.ia_gid = dx_map_gid(group); + } + if (!S_ISDIR(inode->i_mode)) + newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID; +@@ -728,7 +735,7 @@ asmlinkage long sys_chown(const char __u + + error = user_path_walk(filename, &nd); + if (!error) { +- error = chown_common(nd.dentry, user, group); ++ error = chown_common(nd.dentry, nd.mnt, user, group); + path_release(&nd); + } + return error; +@@ -747,7 +754,7 @@ asmlinkage long sys_fchownat(int dfd, co + follow = (flag & AT_SYMLINK_NOFOLLOW) ? 0 : LOOKUP_FOLLOW; + error = __user_walk_fd(dfd, filename, follow, &nd); + if (!error) { +- error = chown_common(nd.dentry, user, group); ++ error = chown_common(nd.dentry, nd.mnt, user, group); + path_release(&nd); + } + out: +@@ -761,7 +768,7 @@ asmlinkage long sys_lchown(const char __ + + error = user_path_walk_link(filename, &nd); + if (!error) { +- error = chown_common(nd.dentry, user, group); ++ error = chown_common(nd.dentry, nd.mnt, user, group); + path_release(&nd); + } + return error; +@@ -775,7 +782,7 @@ asmlinkage long sys_fchown(unsigned int + + file = fget(fd); + if (file) { +- error = chown_common(file->f_dentry, user, group); ++ error = chown_common(file->f_dentry, file->f_vfsmnt, user, group); + fput(file); + } + return error; +@@ -999,6 +1006,7 @@ repeat: + FD_SET(fd, fdt->open_fds); + FD_CLR(fd, fdt->close_on_exec); + fdt->next_fd = fd + 1; ++ vx_openfd_inc(fd); + #if 1 + /* Sanity check */ + if (fdt->fd[fd] != NULL) { +@@ -1021,6 +1029,7 @@ static void __put_unused_fd(struct files + __FD_CLR(fd, fdt->open_fds); + if (fd < fdt->next_fd) + fdt->next_fd = fd; ++ vx_openfd_dec(fd); + } + + void fastcall put_unused_fd(unsigned int fd) +Index: linux-2.6.16/fs/proc/array.c +=================================================================== +--- linux-2.6.16.orig/fs/proc/array.c ++++ linux-2.6.16/fs/proc/array.c +@@ -75,6 +75,9 @@ + #include <linux/times.h> + #include <linux/cpuset.h> + #include <linux/rcupdate.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_pid.h> + + #include <asm/uaccess.h> + #include <asm/pgtable.h> +@@ -135,7 +138,9 @@ static const char *task_state_array[] = + "T (stopped)", /* 4 */ + "T (tracing stop)", /* 8 */ + "Z (zombie)", /* 16 */ +- "X (dead)" /* 32 */ ++ "X (dead)", /* 32 */ ++ "N (noninteractive)", /* 64 */ ++ "H (on hold)" /* 128 */ + }; + + static inline const char * get_task_state(struct task_struct *tsk) +@@ -144,7 +149,8 @@ static inline const char * get_task_stat + TASK_INTERRUPTIBLE | + TASK_UNINTERRUPTIBLE | + TASK_STOPPED | +- TASK_TRACED)) | ++ TASK_TRACED | ++ TASK_ONHOLD)) | + (tsk->exit_state & (EXIT_ZOMBIE | + EXIT_DEAD)); + const char **p = &task_state_array[0]; +@@ -161,8 +167,13 @@ static inline char * task_state(struct t + struct group_info *group_info; + int g; + struct fdtable *fdt = NULL; ++ pid_t pid, ptgid, tppid, tgid; + + read_lock(&tasklist_lock); ++ tgid = vx_map_tgid(p->tgid); ++ pid = vx_map_pid(p->pid); ++ ptgid = vx_map_pid(p->group_leader->real_parent->tgid); ++ tppid = vx_map_pid(p->parent->pid); + buffer += sprintf(buffer, + "State:\t%s\n" + "SleepAVG:\t%lu%%\n" +@@ -174,9 +185,8 @@ static inline char * task_state(struct t + "Gid:\t%d\t%d\t%d\t%d\n", + get_task_state(p), + (p->sleep_avg/1024)*100/(1020000000/1024), +- p->tgid, +- p->pid, pid_alive(p) ? p->group_leader->real_parent->tgid : 0, +- pid_alive(p) && p->ptrace ? p->parent->pid : 0, ++ tgid, pid, (pid > 1) ? ptgid : 0, ++ pid_alive(p) && p->ptrace ? tppid : 0, + p->uid, p->euid, p->suid, p->fsuid, + p->gid, p->egid, p->sgid, p->fsgid); + read_unlock(&tasklist_lock); +@@ -296,6 +306,12 @@ static inline char *task_cap(struct task + int proc_pid_status(struct task_struct *task, char * buffer) + { + char * orig = buffer; ++#ifdef CONFIG_VSERVER_LEGACY ++ struct vx_info *vxi; ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ struct nx_info *nxi; ++#endif + struct mm_struct *mm = get_task_mm(task); + + buffer = task_name(task, buffer); +@@ -308,6 +324,46 @@ int proc_pid_status(struct task_struct * + buffer = task_sig(task, buffer); + buffer = task_cap(task, buffer); + buffer = cpuset_task_status_allowed(task, buffer); ++ ++ if (task_vx_flags(task, VXF_INFO_HIDE, 0)) ++ goto skip; ++#ifdef CONFIG_VSERVER_LEGACY ++ buffer += sprintf (buffer,"s_context: %d\n", vx_task_xid(task)); ++ vxi = task_get_vx_info(task); ++ if (vxi) { ++ buffer += sprintf (buffer,"ctxflags: %08llx\n" ++ ,(unsigned long long)vxi->vx_flags); ++ buffer += sprintf (buffer,"initpid: %d\n" ++ ,vxi->vx_initpid); ++ } else { ++ buffer += sprintf (buffer,"ctxflags: none\n"); ++ buffer += sprintf (buffer,"initpid: none\n"); ++ } ++ put_vx_info(vxi); ++#else ++ buffer += sprintf (buffer,"VxID: %d\n", vx_task_xid(task)); ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ nxi = task_get_nx_info(task); ++ if (nxi) { ++ int i; ++ ++ buffer += sprintf (buffer,"ipv4root:"); ++ for (i=0; i<nxi->nbipv4; i++){ ++ buffer += sprintf (buffer," %08x/%08x" ++ ,nxi->ipv4[i] ++ ,nxi->mask[i]); ++ } ++ *buffer++ = '\n'; ++ buffer += sprintf (buffer,"ipv4root_bcast: %08x\n" ++ ,nxi->v4_bcast); ++ } else { ++ buffer += sprintf (buffer,"ipv4root: 0\n"); ++ buffer += sprintf (buffer,"ipv4root_bcast: 0\n"); ++ } ++ put_nx_info(nxi); ++#endif ++skip: + #if defined(CONFIG_S390) + buffer = task_show_regs(task, buffer); + #endif +@@ -322,7 +378,7 @@ static int do_task_stat(struct task_stru + sigset_t sigign, sigcatch; + char state; + int res; +- pid_t ppid, pgid = -1, sid = -1; ++ pid_t pid, ppid, pgid = -1, sid = -1; + int num_threads = 0; + struct mm_struct *mm; + unsigned long long start_time; +@@ -388,7 +444,11 @@ static int do_task_stat(struct task_stru + } + it_real_value = task->signal->real_timer.expires; + } +- ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0; ++ pid = vx_info_map_pid(task->vx_info, pid_alive(task) ? task->pid : 0); ++ ppid = (!(pid > 1)) ? 0 : vx_info_map_tgid(task->vx_info, ++ task->group_leader->real_parent->tgid); ++ pgid = vx_info_map_pid(task->vx_info, pgid); ++ + read_unlock(&tasklist_lock); + + if (!whole || num_threads<2) +@@ -412,10 +472,21 @@ static int do_task_stat(struct task_stru + /* convert nsec -> ticks */ + start_time = nsec_to_clock_t(start_time); + ++ /* fixup start time for virt uptime */ ++ if (vx_flags(VXF_VIRT_UPTIME, 0)) { ++ unsigned long long bias = ++ current->vx_info->cvirt.bias_clock; ++ ++ if (start_time > bias) ++ start_time -= bias; ++ else ++ start_time = 0; ++ } ++ + res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \ + %lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \ + %lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n", +- task->pid, ++ pid, + tcomm, + state, + ppid, +Index: linux-2.6.16/fs/proc/base.c +=================================================================== +--- linux-2.6.16.orig/fs/proc/base.c ++++ linux-2.6.16/fs/proc/base.c +@@ -72,6 +72,8 @@ + #include <linux/cpuset.h> + #include <linux/audit.h> + #include <linux/poll.h> ++#include <linux/vs_network.h> ++#include <linux/vs_pid.h> + #include "internal.h" + + /* +@@ -121,6 +123,8 @@ enum pid_directory_inos { + PROC_TGID_ATTR_EXEC, + PROC_TGID_ATTR_FSCREATE, + #endif ++ PROC_TGID_VX_INFO, ++ PROC_TGID_IP_INFO, + #ifdef CONFIG_AUDITSYSCALL + PROC_TGID_LOGINUID, + #endif +@@ -161,6 +165,8 @@ enum pid_directory_inos { + PROC_TID_ATTR_EXEC, + PROC_TID_ATTR_FSCREATE, + #endif ++ PROC_TID_VX_INFO, ++ PROC_TID_IP_INFO, + #ifdef CONFIG_AUDITSYSCALL + PROC_TID_LOGINUID, + #endif +@@ -216,6 +222,8 @@ static struct pid_entry tgid_base_stuff[ + #ifdef CONFIG_CPUSETS + E(PROC_TGID_CPUSET, "cpuset", S_IFREG|S_IRUGO), + #endif ++ E(PROC_TGID_VX_INFO, "vinfo", S_IFREG|S_IRUGO), ++ E(PROC_TGID_IP_INFO, "ninfo", S_IFREG|S_IRUGO), + E(PROC_TGID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO), + E(PROC_TGID_OOM_ADJUST,"oom_adj", S_IFREG|S_IRUGO|S_IWUSR), + #ifdef CONFIG_AUDITSYSCALL +@@ -258,6 +266,8 @@ static struct pid_entry tid_base_stuff[] + #ifdef CONFIG_CPUSETS + E(PROC_TID_CPUSET, "cpuset", S_IFREG|S_IRUGO), + #endif ++ E(PROC_TID_VX_INFO, "vinfo", S_IFREG|S_IRUGO), ++ E(PROC_TID_IP_INFO, "ninfo", S_IFREG|S_IRUGO), + E(PROC_TID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO), + E(PROC_TID_OOM_ADJUST, "oom_adj", S_IFREG|S_IRUGO|S_IWUSR), + #ifdef CONFIG_AUDITSYSCALL +@@ -537,6 +547,11 @@ static int proc_check_chroot(struct dent + struct dentry *de, *base; + struct vfsmount *our_vfsmnt, *mnt; + int res = 0; ++ ++ /* context admin override */ ++ if (capable(CAP_CONTEXT)) ++ goto override; ++ + read_lock(¤t->fs->lock); + our_vfsmnt = mntget(current->fs->rootmnt); + base = dget(current->fs->root); +@@ -546,11 +561,11 @@ static int proc_check_chroot(struct dent + de = root; + mnt = vfsmnt; + +- while (vfsmnt != our_vfsmnt) { +- if (vfsmnt == vfsmnt->mnt_parent) ++ while (mnt != our_vfsmnt) { ++ if (mnt == mnt->mnt_parent) + goto out; +- de = vfsmnt->mnt_mountpoint; +- vfsmnt = vfsmnt->mnt_parent; ++ de = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; + } + + if (!is_subdir(de, base)) +@@ -560,8 +575,9 @@ static int proc_check_chroot(struct dent + exit: + dput(base); + mntput(our_vfsmnt); ++override: + dput(root); +- mntput(mnt); ++ mntput(vfsmnt); + return res; + out: + spin_unlock(&vfsmount_lock); +@@ -1221,7 +1237,7 @@ static int proc_pident_readdir(struct fi + struct inode *inode = dentry->d_inode; + struct pid_entry *p; + ino_t ino; +- int ret; ++ int ret, hide; + + ret = -ENOENT; + if (!pid_alive(proc_task(inode))) +@@ -1252,11 +1268,20 @@ static int proc_pident_readdir(struct fi + goto out; + } + p = ents + i; ++ hide = vx_flags(VXF_INFO_HIDE, 0); + while (p->name) { ++ if (hide) { ++ switch (p->type) { ++ case PROC_TGID_VX_INFO: ++ case PROC_TGID_IP_INFO: ++ goto skip; ++ } ++ } + if (filldir(dirent, p->name, p->len, filp->f_pos, + fake_ino(pid, p->type), p->mode >> 12) < 0) + goto out; + filp->f_pos++; ++ skip: + p++; + } + } +@@ -1330,6 +1355,8 @@ static struct inode *proc_pid_make_inode + inode->i_uid = task->euid; + inode->i_gid = task->egid; + } ++ /* procfs is xid tagged */ ++ inode->i_tag = (tag_t)vx_task_xid(task); + security_task_to_inode(task, inode); + + out: +@@ -1355,6 +1382,11 @@ static int pid_revalidate(struct dentry + { + struct inode *inode = dentry->d_inode; + struct task_struct *task = proc_task(inode); ++ ++ if (!vx_check(vx_task_xid(task), VX_IDENT)) ++ goto out_drop; ++ /* discard wrong fakeinit */ ++ + if (pid_alive(task)) { + if (proc_type(inode) == PROC_TGID_INO || proc_type(inode) == PROC_TID_INO || task_dumpable(task)) { + inode->i_uid = task->euid; +@@ -1366,6 +1398,7 @@ static int pid_revalidate(struct dentry + security_task_to_inode(task, inode); + return 1; + } ++out_drop: + d_drop(dentry); + return 0; + } +@@ -1600,6 +1633,9 @@ static struct file_operations proc_tgid_ + static struct inode_operations proc_tgid_attr_inode_operations; + #endif + ++extern int proc_pid_vx_info(struct task_struct *, char *); ++extern int proc_pid_nx_info(struct task_struct *, char *); ++ + static int get_tid_list(int index, unsigned int *tids, struct inode *dir); + + /* SMP-safe */ +@@ -1787,15 +1823,33 @@ static struct dentry *proc_pident_lookup + inode->i_fop = &proc_loginuid_operations; + break; + #endif ++ case PROC_TID_VX_INFO: ++ case PROC_TGID_VX_INFO: ++ if (task_vx_flags(task, VXF_INFO_HIDE, 0)) ++ goto out_noent; ++ inode->i_fop = &proc_info_file_operations; ++ ei->op.proc_read = proc_pid_vx_info; ++ break; ++ case PROC_TID_IP_INFO: ++ case PROC_TGID_IP_INFO: ++ if (task_vx_flags(task, VXF_INFO_HIDE, 0)) ++ goto out_noent; ++ inode->i_fop = &proc_info_file_operations; ++ ei->op.proc_read = proc_pid_nx_info; ++ break; + default: + printk("procfs: impossible type (%d)",p->type); +- iput(inode); +- return ERR_PTR(-EINVAL); ++ error = -EINVAL; ++ goto out_put; + } + dentry->d_op = &pid_dentry_operations; + d_add(dentry, inode); + return NULL; + ++out_noent: ++ error=-ENOENT; ++out_put: ++ iput(inode); + out: + return ERR_PTR(error); + } +@@ -1879,14 +1933,14 @@ static int proc_self_readlink(struct den + int buflen) + { + char tmp[30]; +- sprintf(tmp, "%d", current->tgid); ++ sprintf(tmp, "%d", vx_map_tgid(current->tgid)); + return vfs_readlink(dentry,buffer,buflen,tmp); + } + + static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd) + { + char tmp[30]; +- sprintf(tmp, "%d", current->tgid); ++ sprintf(tmp, "%d", vx_map_tgid(current->tgid)); + return ERR_PTR(vfs_follow_link(nd,tmp)); + } + +@@ -1949,6 +2003,20 @@ void proc_pid_flush(struct dentry *proc_ + } + } + ++#define VXF_FAKE_INIT (VXF_INFO_INIT|VXF_STATE_INIT) ++ ++static inline int proc_pid_visible(struct task_struct *task, int pid) ++{ ++ if ((pid == 1) && ++ !vx_flags(VXF_FAKE_INIT, VXF_FAKE_INIT)) ++ goto visible; ++ if (vx_check(vx_task_xid(task), VX_WATCH|VX_IDENT)) ++ goto visible; ++ return 0; ++visible: ++ return 1; ++} ++ + /* SMP-safe */ + struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd) + { +@@ -1985,13 +2053,14 @@ struct dentry *proc_pid_lookup(struct in + if (!task) + goto out; + +- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO); ++ /* check for context visibility */ ++ if (!proc_pid_visible(task, tgid)) ++ goto out_drop_task; + ++ inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO); ++ if (!inode) ++ goto out_drop_task; + +- if (!inode) { +- put_task_struct(task); +- goto out; +- } + inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; + inode->i_op = &proc_tgid_base_inode_operations; + inode->i_fop = &proc_tgid_base_operations; +@@ -2020,6 +2089,8 @@ struct dentry *proc_pid_lookup(struct in + goto out; + } + return NULL; ++out_drop_task: ++ put_task_struct(task); + out: + return ERR_PTR(-ENOENT); + } +@@ -2035,6 +2106,8 @@ static struct dentry *proc_task_lookup(s + tid = name_to_int(dentry); + if (tid == ~0U) + goto out; ++ if (vx_current_initpid(tid)) ++ goto out; + + read_lock(&tasklist_lock); + task = find_task_by_pid(tid); +@@ -2046,11 +2119,14 @@ static struct dentry *proc_task_lookup(s + if (leader->tgid != task->tgid) + goto out_drop_task; + +- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO); +- ++ /* check for context visibility */ ++ if (!proc_pid_visible(task, tid)) ++ goto out_drop_task; + ++ inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO); + if (!inode) + goto out_drop_task; ++ + inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; + inode->i_op = &proc_tid_base_inode_operations; + inode->i_fop = &proc_tid_base_operations; +@@ -2090,7 +2166,7 @@ static int get_tgid_list(int index, unsi + read_lock(&tasklist_lock); + p = NULL; + if (version) { +- p = find_task_by_pid(version); ++ p = find_task_by_real_pid(version); + if (p && !thread_group_leader(p)) + p = NULL; + } +@@ -2102,11 +2178,15 @@ static int get_tgid_list(int index, unsi + + for ( ; p != &init_task; p = next_task(p)) { + int tgid = p->pid; ++ + if (!pid_alive(p)) + continue; ++ /* check for context visibility */ ++ if (!proc_pid_visible(p, tgid)) ++ continue; + if (--index >= 0) + continue; +- tgids[nr_tgids] = tgid; ++ tgids[nr_tgids] = vx_map_tgid(tgid); + nr_tgids++; + if (nr_tgids >= PROC_MAXPIDS) + break; +@@ -2136,10 +2216,13 @@ static int get_tid_list(int index, unsig + if (pid_alive(task)) do { + int tid = task->pid; + ++ /* check for context visibility */ ++ if (!proc_pid_visible(task, tid)) ++ continue; + if (--index >= 0) + continue; + if (tids != NULL) +- tids[nr_tids] = tid; ++ tids[nr_tids] = vx_map_pid(tid); + nr_tids++; + if (nr_tids >= PROC_MAXPIDS) + break; +@@ -2215,11 +2298,14 @@ static int proc_task_readdir(struct file + unsigned int nr_tids, i; + struct dentry *dentry = filp->f_dentry; + struct inode *inode = dentry->d_inode; ++ struct task_struct *task = proc_task(inode); + int retval = -ENOENT; + ino_t ino; + unsigned long pos = filp->f_pos; /* avoiding "long long" filp->f_pos */ + +- if (!pid_alive(proc_task(inode))) ++ if (!vx_check(vx_task_xid(task), VX_WATCH|VX_IDENT)) ++ goto out; ++ if (!pid_alive(task)) + goto out; + retval = 0; + +Index: linux-2.6.16/fs/proc/generic.c +=================================================================== +--- linux-2.6.16.orig/fs/proc/generic.c ++++ linux-2.6.16/fs/proc/generic.c +@@ -19,6 +19,7 @@ + #include <linux/idr.h> + #include <linux/namei.h> + #include <linux/bitops.h> ++#include <linux/vserver/inode.h> + #include <asm/uaccess.h> + + #include "internal.h" +@@ -385,11 +386,15 @@ struct dentry *proc_lookup(struct inode + for (de = de->subdir; de ; de = de->next) { + if (de->namelen != dentry->d_name.len) + continue; ++ if (!vx_hide_check(0, de->vx_flags)) ++ continue; + if (!memcmp(dentry->d_name.name, de->name, de->namelen)) { + unsigned int ino = de->low_ino; + + error = -EINVAL; + inode = proc_get_inode(dir->i_sb, ino, de); ++ /* generic proc entries belong to the host */ ++ inode->i_tag = 0; + break; + } + } +@@ -461,9 +466,12 @@ int proc_readdir(struct file * filp, + } + + do { ++ if (!vx_hide_check(0, de->vx_flags)) ++ goto skip; + if (filldir(dirent, de->name, de->namelen, filp->f_pos, + de->low_ino, de->mode >> 12) < 0) + goto out; ++ skip: + filp->f_pos++; + de = de->next; + } while (de); +@@ -581,6 +589,7 @@ static struct proc_dir_entry *proc_creat + ent->namelen = len; + ent->mode = mode; + ent->nlink = nlink; ++ ent->vx_flags = IATTR_PROC_DEFAULT; + out: + return ent; + } +@@ -601,7 +610,8 @@ struct proc_dir_entry *proc_symlink(cons + kfree(ent->data); + kfree(ent); + ent = NULL; +- } ++ } else ++ ent->vx_flags = IATTR_PROC_SYMLINK; + } else { + kfree(ent); + ent = NULL; +Index: linux-2.6.16/fs/proc/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/proc/inode.c ++++ linux-2.6.16/fs/proc/inode.c +@@ -170,6 +170,8 @@ struct inode *proc_get_inode(struct supe + inode->i_uid = de->uid; + inode->i_gid = de->gid; + } ++ if (de->vx_flags) ++ PROC_I(inode)->vx_flags = de->vx_flags; + if (de->size) + inode->i_size = de->size; + if (de->nlink) +Index: linux-2.6.16/fs/proc/proc_misc.c +=================================================================== +--- linux-2.6.16.orig/fs/proc/proc_misc.c ++++ linux-2.6.16/fs/proc/proc_misc.c +@@ -53,6 +53,8 @@ + #include <asm/div64.h> + #include "internal.h" + ++#include <linux/vs_cvirt.h> ++ + #define LOAD_INT(x) ((x) >> FSHIFT) + #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) + /* +@@ -82,17 +84,32 @@ static int proc_calc_metrics(char *page, + static int loadavg_read_proc(char *page, char **start, off_t off, + int count, int *eof, void *data) + { ++ unsigned int running, threads; + int a, b, c; + int len; + +- a = avenrun[0] + (FIXED_1/200); +- b = avenrun[1] + (FIXED_1/200); +- c = avenrun[2] + (FIXED_1/200); +- len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n", ++ if (vx_flags(VXF_VIRT_LOAD, 0)) { ++ struct vx_info *vxi = current->vx_info; ++ ++ a = vxi->cvirt.load[0] + (FIXED_1/200); ++ b = vxi->cvirt.load[1] + (FIXED_1/200); ++ c = vxi->cvirt.load[2] + (FIXED_1/200); ++ ++ running = atomic_read(&vxi->cvirt.nr_running); ++ threads = atomic_read(&vxi->cvirt.nr_threads); ++ } else { ++ a = avenrun[0] + (FIXED_1/200); ++ b = avenrun[1] + (FIXED_1/200); ++ c = avenrun[2] + (FIXED_1/200); ++ ++ running = nr_running(); ++ threads = nr_threads; ++ } ++ len = sprintf(page,"%d.%02d %d.%02d %d.%02d %d/%d %d\n", + LOAD_INT(a), LOAD_FRAC(a), + LOAD_INT(b), LOAD_FRAC(b), + LOAD_INT(c), LOAD_FRAC(c), +- nr_running(), nr_threads, last_pid); ++ running, threads, last_pid); + return proc_calc_metrics(page, start, off, count, eof, len); + } + +@@ -106,6 +123,9 @@ static int uptime_read_proc(char *page, + + do_posix_clock_monotonic_gettime(&uptime); + cputime_to_timespec(idletime, &idle); ++ if (vx_flags(VXF_VIRT_UPTIME, 0)) ++ vx_vsi_uptime(&uptime, &idle); ++ + len = sprintf(page,"%lu.%02lu %lu.%02lu\n", + (unsigned long) uptime.tv_sec, + (uptime.tv_nsec / (NSEC_PER_SEC / 100)), +@@ -143,7 +163,7 @@ static int meminfo_read_proc(char *page, + * sysctl_overcommit_ratio / 100) + total_swap_pages; + + cached = get_page_cache_size() - total_swapcache_pages - i.bufferram; +- if (cached < 0) ++ if (cached < 0 || vx_flags(VXF_VIRT_MEM, 0)) + cached = 0; + + get_vmalloc_info(&vmi); +@@ -238,8 +258,9 @@ static int version_read_proc(char *page, + { + int len; + +- strcpy(page, linux_banner); +- len = strlen(page); ++ len = sprintf(page, vx_linux_banner, ++ vx_new_uts(release), ++ vx_new_uts(version)); + return proc_calc_metrics(page, start, off, count, eof, len); + } + +Index: linux-2.6.16/fs/proc/root.c +=================================================================== +--- linux-2.6.16.orig/fs/proc/root.c ++++ linux-2.6.16/fs/proc/root.c +@@ -25,6 +25,9 @@ struct proc_dir_entry *proc_net, *proc_n + #ifdef CONFIG_SYSCTL + struct proc_dir_entry *proc_sys_root; + #endif ++struct proc_dir_entry *proc_virtual; ++ ++extern void proc_vx_init(void); + + static struct super_block *proc_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) +@@ -78,6 +81,7 @@ void __init proc_root_init(void) + proc_device_tree_init(); + #endif + proc_bus = proc_mkdir("bus", NULL); ++ proc_vx_init(); + } + + static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat +Index: linux-2.6.16/fs/quota.c +=================================================================== +--- linux-2.6.16.orig/fs/quota.c ++++ linux-2.6.16/fs/quota.c +@@ -17,47 +17,50 @@ + #include <linux/buffer_head.h> + #include <linux/capability.h> + #include <linux/quotaops.h> ++#include <linux/major.h> ++#include <linux/blkdev.h> ++#include <linux/vserver/debug.h> + + /* Check validity of generic quotactl commands */ +-static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id) ++static int generic_quotactl_valid(struct dqhash *hash, int type, int cmd, qid_t id) + { + if (type >= MAXQUOTAS) + return -EINVAL; +- if (!sb && cmd != Q_SYNC) ++ if (!hash && cmd != Q_SYNC) + return -ENODEV; + /* Is operation supported? */ +- if (sb && !sb->s_qcop) ++ if (hash && !hash->dqh_qcop) + return -ENOSYS; + + switch (cmd) { + case Q_GETFMT: + break; + case Q_QUOTAON: +- if (!sb->s_qcop->quota_on) ++ if (!hash->dqh_qcop->quota_on) + return -ENOSYS; + break; + case Q_QUOTAOFF: +- if (!sb->s_qcop->quota_off) ++ if (!hash->dqh_qcop->quota_off) + return -ENOSYS; + break; + case Q_SETINFO: +- if (!sb->s_qcop->set_info) ++ if (!hash->dqh_qcop->set_info) + return -ENOSYS; + break; + case Q_GETINFO: +- if (!sb->s_qcop->get_info) ++ if (!hash->dqh_qcop->get_info) + return -ENOSYS; + break; + case Q_SETQUOTA: +- if (!sb->s_qcop->set_dqblk) ++ if (!hash->dqh_qcop->set_dqblk) + return -ENOSYS; + break; + case Q_GETQUOTA: +- if (!sb->s_qcop->get_dqblk) ++ if (!hash->dqh_qcop->get_dqblk) + return -ENOSYS; + break; + case Q_SYNC: +- if (sb && !sb->s_qcop->quota_sync) ++ if (hash && !hash->dqh_qcop->quota_sync) + return -ENOSYS; + break; + default: +@@ -73,7 +76,7 @@ static int generic_quotactl_valid(struct + case Q_SETQUOTA: + case Q_GETQUOTA: + /* This is just informative test so we are satisfied without a lock */ +- if (!sb_has_quota_enabled(sb, type)) ++ if (!dqh_has_quota_enabled(hash, type)) + return -ESRCH; + } + +@@ -81,47 +84,47 @@ static int generic_quotactl_valid(struct + if (cmd == Q_GETQUOTA) { + if (((type == USRQUOTA && current->euid != id) || + (type == GRPQUOTA && !in_egroup_p(id))) && +- !capable(CAP_SYS_ADMIN)) ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + } + else if (cmd != Q_GETFMT && cmd != Q_SYNC && cmd != Q_GETINFO) +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + + return 0; + } + + /* Check validity of XFS Quota Manager commands */ +-static int xqm_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id) ++static int xqm_quotactl_valid(struct dqhash *hash, int type, int cmd, qid_t id) + { + if (type >= XQM_MAXQUOTAS) + return -EINVAL; +- if (!sb) ++ if (!hash) + return -ENODEV; +- if (!sb->s_qcop) ++ if (!hash->dqh_qcop) + return -ENOSYS; + + switch (cmd) { + case Q_XQUOTAON: + case Q_XQUOTAOFF: + case Q_XQUOTARM: +- if (!sb->s_qcop->set_xstate) ++ if (!hash->dqh_qcop->set_xstate) + return -ENOSYS; + break; + case Q_XGETQSTAT: +- if (!sb->s_qcop->get_xstate) ++ if (!hash->dqh_qcop->get_xstate) + return -ENOSYS; + break; + case Q_XSETQLIM: +- if (!sb->s_qcop->set_xquota) ++ if (!hash->dqh_qcop->set_xquota) + return -ENOSYS; + break; + case Q_XGETQUOTA: +- if (!sb->s_qcop->get_xquota) ++ if (!hash->dqh_qcop->get_xquota) + return -ENOSYS; + break; + case Q_XQUOTASYNC: +- if (!sb->s_qcop->quota_sync) ++ if (!hash->dqh_qcop->quota_sync) + return -ENOSYS; + break; + default: +@@ -132,57 +135,68 @@ static int xqm_quotactl_valid(struct sup + if (cmd == Q_XGETQUOTA) { + if (((type == XQM_USRQUOTA && current->euid != id) || + (type == XQM_GRPQUOTA && !in_egroup_p(id))) && +- !capable(CAP_SYS_ADMIN)) ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + } else if (cmd != Q_XGETQSTAT && cmd != Q_XQUOTASYNC) { +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + } + + return 0; + } + +-static int check_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id) ++static int check_quotactl_valid(struct dqhash *hash, int type, int cmd, qid_t id) + { + int error; + + if (XQM_COMMAND(cmd)) +- error = xqm_quotactl_valid(sb, type, cmd, id); ++ error = xqm_quotactl_valid(hash, type, cmd, id); + else +- error = generic_quotactl_valid(sb, type, cmd, id); ++ error = generic_quotactl_valid(hash, type, cmd, id); + if (!error) +- error = security_quotactl(cmd, type, id, sb); ++ error = security_quotactl(cmd, type, id, hash); + return error; + } + +-static void quota_sync_sb(struct super_block *sb, int type) ++static void quota_sync_sb(struct super_block *sb) + { +- int cnt; +- struct inode *discard[MAXQUOTAS]; +- +- sb->s_qcop->quota_sync(sb, type); + /* This is not very clever (and fast) but currently I don't know about + * any other simple way of getting quota data to disk and we must get + * them there for userspace to be visible... */ + if (sb->s_op->sync_fs) + sb->s_op->sync_fs(sb, 1); + sync_blockdev(sb->s_bdev); ++} ++ ++static void quota_sync_dqh(struct dqhash *hash, int type) ++{ ++ int cnt; ++ struct inode *discard[MAXQUOTAS]; ++ ++ vxdprintk(VXD_CBIT(quota, 1), ++ "quota_sync_dqh(%p,%d)", hash, type); ++ hash->dqh_qcop->quota_sync(hash, type); ++ ++ quota_sync_sb(hash->dqh_sb); + + /* Now when everything is written we can discard the pagecache so + * that userspace sees the changes. We need i_mutex and so we could + * not do it inside dqonoff_sem. Moreover we need to be carefull + * about races with quotaoff() (that is the reason why we have own + * reference to inode). */ +- down(&sb_dqopt(sb)->dqonoff_sem); ++ down(&dqh_dqopt(hash)->dqonoff_sem); + for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + discard[cnt] = NULL; + if (type != -1 && cnt != type) + continue; +- if (!sb_has_quota_enabled(sb, cnt)) ++ if (!dqh_has_quota_enabled(hash, cnt)) + continue; +- discard[cnt] = igrab(sb_dqopt(sb)->files[cnt]); ++ vxdprintk(VXD_CBIT(quota, 0), ++ "quota_sync_dqh(%p,%d) discard inode %p", ++ hash, type, dqh_dqopt(hash)->files[cnt]); ++ discard[cnt] = igrab(dqh_dqopt(hash)->files[cnt]); + } +- up(&sb_dqopt(sb)->dqonoff_sem); ++ up(&dqh_dqopt(hash)->dqonoff_sem); + for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + if (discard[cnt]) { + mutex_lock(&discard[cnt]->i_mutex); +@@ -193,67 +207,59 @@ static void quota_sync_sb(struct super_b + } + } + +-void sync_dquots(struct super_block *sb, int type) ++void sync_dquots_dqh(struct dqhash *hash, int type) + { +- int cnt, dirty; ++ vxdprintk(VXD_CBIT(quota, 1), ++ "sync_dquots_dqh(%p,%d)", hash, type); + +- if (sb) { +- if (sb->s_qcop->quota_sync) +- quota_sync_sb(sb, type); +- return; +- } ++ if (hash->dqh_qcop->quota_sync) ++ quota_sync_dqh(hash, type); ++} + +- spin_lock(&sb_lock); +-restart: +- list_for_each_entry(sb, &super_blocks, s_list) { +- /* This test just improves performance so it needn't be reliable... */ +- for (cnt = 0, dirty = 0; cnt < MAXQUOTAS; cnt++) +- if ((type == cnt || type == -1) && sb_has_quota_enabled(sb, cnt) +- && info_any_dirty(&sb_dqopt(sb)->info[cnt])) +- dirty = 1; +- if (!dirty) +- continue; +- sb->s_count++; +- spin_unlock(&sb_lock); +- down_read(&sb->s_umount); +- if (sb->s_root && sb->s_qcop->quota_sync) +- quota_sync_sb(sb, type); +- up_read(&sb->s_umount); +- spin_lock(&sb_lock); +- if (__put_super_and_need_restart(sb)) +- goto restart; ++void sync_dquots(struct dqhash *hash, int type) ++ ++{ ++ vxdprintk(VXD_CBIT(quota, 1), ++ "sync_dquots(%p,%d)", hash, type); ++ ++ if (hash) { ++ if (hash->dqh_qcop->quota_sync) ++ quota_sync_dqh(hash, type); ++ return; + } +- spin_unlock(&sb_lock); + } + + /* Copy parameters and call proper function */ +-static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void __user *addr) ++static int do_quotactl(struct dqhash *hash, int type, int cmd, qid_t id, void __user *addr) + { + int ret; + ++ vxdprintk(VXD_CBIT(quota, 3), ++ "do_quotactl(%p,%d,cmd=%d,id=%d,%p)", hash, type, cmd, id, addr); ++ + switch (cmd) { + case Q_QUOTAON: { + char *pathname; + + if (IS_ERR(pathname = getname(addr))) + return PTR_ERR(pathname); +- ret = sb->s_qcop->quota_on(sb, type, id, pathname); ++ ret = hash->dqh_qcop->quota_on(hash, type, id, pathname); + putname(pathname); + return ret; + } + case Q_QUOTAOFF: +- return sb->s_qcop->quota_off(sb, type); ++ return hash->dqh_qcop->quota_off(hash, type); + + case Q_GETFMT: { + __u32 fmt; + +- down_read(&sb_dqopt(sb)->dqptr_sem); +- if (!sb_has_quota_enabled(sb, type)) { +- up_read(&sb_dqopt(sb)->dqptr_sem); ++ down_read(&dqh_dqopt(hash)->dqptr_sem); ++ if (!dqh_has_quota_enabled(hash, type)) { ++ up_read(&dqh_dqopt(hash)->dqptr_sem); + return -ESRCH; + } +- fmt = sb_dqopt(sb)->info[type].dqi_format->qf_fmt_id; +- up_read(&sb_dqopt(sb)->dqptr_sem); ++ fmt = dqh_dqopt(hash)->info[type].dqi_format->qf_fmt_id; ++ up_read(&dqh_dqopt(hash)->dqptr_sem); + if (copy_to_user(addr, &fmt, sizeof(fmt))) + return -EFAULT; + return 0; +@@ -261,7 +267,7 @@ static int do_quotactl(struct super_bloc + case Q_GETINFO: { + struct if_dqinfo info; + +- if ((ret = sb->s_qcop->get_info(sb, type, &info))) ++ if ((ret = hash->dqh_qcop->get_info(hash, type, &info))) + return ret; + if (copy_to_user(addr, &info, sizeof(info))) + return -EFAULT; +@@ -272,12 +278,12 @@ static int do_quotactl(struct super_bloc + + if (copy_from_user(&info, addr, sizeof(info))) + return -EFAULT; +- return sb->s_qcop->set_info(sb, type, &info); ++ return hash->dqh_qcop->set_info(hash, type, &info); + } + case Q_GETQUOTA: { + struct if_dqblk idq; + +- if ((ret = sb->s_qcop->get_dqblk(sb, type, id, &idq))) ++ if ((ret = hash->dqh_qcop->get_dqblk(hash, type, id, &idq))) + return ret; + if (copy_to_user(addr, &idq, sizeof(idq))) + return -EFAULT; +@@ -288,10 +294,10 @@ static int do_quotactl(struct super_bloc + + if (copy_from_user(&idq, addr, sizeof(idq))) + return -EFAULT; +- return sb->s_qcop->set_dqblk(sb, type, id, &idq); ++ return hash->dqh_qcop->set_dqblk(hash, type, id, &idq); + } + case Q_SYNC: +- sync_dquots(sb, type); ++ sync_dquots_dqh(hash, type); + return 0; + + case Q_XQUOTAON: +@@ -301,12 +307,12 @@ static int do_quotactl(struct super_bloc + + if (copy_from_user(&flags, addr, sizeof(flags))) + return -EFAULT; +- return sb->s_qcop->set_xstate(sb, flags, cmd); ++ return hash->dqh_qcop->set_xstate(hash, flags, cmd); + } + case Q_XGETQSTAT: { + struct fs_quota_stat fqs; + +- if ((ret = sb->s_qcop->get_xstate(sb, &fqs))) ++ if ((ret = hash->dqh_qcop->get_xstate(hash, &fqs))) + return ret; + if (copy_to_user(addr, &fqs, sizeof(fqs))) + return -EFAULT; +@@ -317,19 +323,19 @@ static int do_quotactl(struct super_bloc + + if (copy_from_user(&fdq, addr, sizeof(fdq))) + return -EFAULT; +- return sb->s_qcop->set_xquota(sb, type, id, &fdq); ++ return hash->dqh_qcop->set_xquota(hash, type, id, &fdq); + } + case Q_XGETQUOTA: { + struct fs_disk_quota fdq; + +- if ((ret = sb->s_qcop->get_xquota(sb, type, id, &fdq))) ++ if ((ret = hash->dqh_qcop->get_xquota(hash, type, id, &fdq))) + return ret; + if (copy_to_user(addr, &fdq, sizeof(fdq))) + return -EFAULT; + return 0; + } + case Q_XQUOTASYNC: +- return sb->s_qcop->quota_sync(sb, type); ++ return hash->dqh_qcop->quota_sync(hash, type); + /* We never reach here unless validity check is broken */ + default: + BUG(); +@@ -337,6 +343,43 @@ static int do_quotactl(struct super_bloc + return 0; + } + ++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE) ++ ++#include <linux/vroot.h> ++#include <linux/kallsyms.h> ++ ++static vroot_grb_func *vroot_get_real_bdev = NULL; ++ ++static spinlock_t vroot_grb_lock = SPIN_LOCK_UNLOCKED; ++ ++int register_vroot_grb(vroot_grb_func *func) { ++ int ret = -EBUSY; ++ ++ spin_lock(&vroot_grb_lock); ++ if (!vroot_get_real_bdev) { ++ vroot_get_real_bdev = func; ++ ret = 0; ++ } ++ spin_unlock(&vroot_grb_lock); ++ return ret; ++} ++EXPORT_SYMBOL(register_vroot_grb); ++ ++int unregister_vroot_grb(vroot_grb_func *func) { ++ int ret = -EINVAL; ++ ++ spin_lock(&vroot_grb_lock); ++ if (vroot_get_real_bdev) { ++ vroot_get_real_bdev = NULL; ++ ret = 0; ++ } ++ spin_unlock(&vroot_grb_lock); ++ return ret; ++} ++EXPORT_SYMBOL(unregister_vroot_grb); ++ ++#endif ++ + /* + * This is the system call interface. This communicates with + * the user-level programs. Currently this only supports diskquota +@@ -347,6 +390,7 @@ asmlinkage long sys_quotactl(unsigned in + { + uint cmds, type; + struct super_block *sb = NULL; ++ struct dqhash *dqh = NULL; + struct block_device *bdev; + char *tmp; + int ret; +@@ -362,15 +406,33 @@ asmlinkage long sys_quotactl(unsigned in + putname(tmp); + if (IS_ERR(bdev)) + return PTR_ERR(bdev); ++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE) ++ if (bdev && bdev->bd_inode && ++ imajor(bdev->bd_inode) == VROOT_MAJOR) { ++ struct block_device *bdnew = (void *)-EINVAL; ++ ++ if (vroot_get_real_bdev) ++ bdnew = vroot_get_real_bdev(bdev); ++ else ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot_get_real_bdev not set"); ++ ++ bdput(bdev); ++ if (IS_ERR(bdnew)) ++ return PTR_ERR(bdnew); ++ bdev = bdnew; ++ } ++#endif + sb = get_super(bdev); + bdput(bdev); + if (!sb) + return -ENODEV; + } +- +- ret = check_quotactl_valid(sb, type, cmds, id); ++ if (sb) ++ dqh = sb->s_dqh; ++ ret = check_quotactl_valid(dqh, type, cmds, id); + if (ret >= 0) +- ret = do_quotactl(sb, type, cmds, id, addr); ++ ret = do_quotactl(dqh, type, cmds, id, addr); + if (sb) + drop_super(sb); + +Index: linux-2.6.16/fs/quota_v1.c +=================================================================== +--- linux-2.6.16.orig/fs/quota_v1.c ++++ linux-2.6.16/fs/quota_v1.c +@@ -42,12 +42,13 @@ static int v1_read_dqblk(struct dquot *d + int type = dquot->dq_type; + struct v1_disk_dqblk dqblk; + +- if (!sb_dqopt(dquot->dq_sb)->files[type]) ++ if (!dqh_dqopt(dquot->dq_dqh)->files[type]) + return -EINVAL; + + /* Set structure to 0s in case read fails/is after end of file */ + memset(&dqblk, 0, sizeof(struct v1_disk_dqblk)); +- dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id)); ++ dquot->dq_dqh->dqh_sb->s_op->quota_read(dquot->dq_dqh, type, ++ (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id)); + + v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk); + if (dquot->dq_dqb.dqb_bhardlimit == 0 && dquot->dq_dqb.dqb_bsoftlimit == 0 && +@@ -66,16 +67,16 @@ static int v1_commit_dqblk(struct dquot + + v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb); + if (dquot->dq_id == 0) { +- dqblk.dqb_btime = sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace; +- dqblk.dqb_itime = sb_dqopt(dquot->dq_sb)->info[type].dqi_igrace; ++ dqblk.dqb_btime = dqh_dqopt(dquot->dq_dqh)->info[type].dqi_bgrace; ++ dqblk.dqb_itime = dqh_dqopt(dquot->dq_dqh)->info[type].dqi_igrace; + } + ret = 0; +- if (sb_dqopt(dquot->dq_sb)->files[type]) +- ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, (char *)&dqblk, +- sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id)); ++ if (dqh_dqopt(dquot->dq_dqh)->files[type]) ++ ret = dquot->dq_dqh->dqh_sb->s_op->quota_write(dquot->dq_dqh, type, ++ (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id)); + if (ret != sizeof(struct v1_disk_dqblk)) { + printk(KERN_WARNING "VFS: dquota write failed on dev %s\n", +- dquot->dq_sb->s_id); ++ dquot->dq_dqh->dqh_sb->s_id); + if (ret >= 0) + ret = -EIO; + goto out; +@@ -100,9 +101,9 @@ struct v2_disk_dqheader { + __le32 dqh_version; /* File version */ + }; + +-static int v1_check_quota_file(struct super_block *sb, int type) ++static int v1_check_quota_file(struct dqhash *hash, int type) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; + ulong blocks; + size_t off; + struct v2_disk_dqheader dqhead; +@@ -118,22 +119,26 @@ static int v1_check_quota_file(struct su + if ((blocks % sizeof(struct v1_disk_dqblk) * BLOCK_SIZE + off) % sizeof(struct v1_disk_dqblk)) + return 0; + /* Doublecheck whether we didn't get file with new format - with old quotactl() this could happen */ +- size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0); ++ size = hash->dqh_sb->s_op->quota_read(hash, type, ++ (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0); + if (size != sizeof(struct v2_disk_dqheader)) + return 1; /* Probably not new format */ + if (le32_to_cpu(dqhead.dqh_magic) != quota_magics[type]) + return 1; /* Definitely not new format */ +- printk(KERN_INFO "VFS: %s: Refusing to turn on old quota format on given file. It probably contains newer quota format.\n", sb->s_id); ++ printk(KERN_INFO "VFS: %s: Refusing to turn on old quota format on given file." ++ " It probably contains newer quota format.\n", hash->dqh_sb->s_id); + return 0; /* Seems like a new format file -> refuse it */ + } + +-static int v1_read_file_info(struct super_block *sb, int type) ++static int v1_read_file_info(struct dqhash *hash, int type) + { +- struct quota_info *dqopt = sb_dqopt(sb); ++ struct quota_info *dqopt = dqh_dqopt(hash); + struct v1_disk_dqblk dqblk; + int ret; + +- if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) { ++ if ((ret = hash->dqh_sb->s_op->quota_read(hash, type, ++ (char *)&dqblk, sizeof(struct v1_disk_dqblk), ++ v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) { + if (ret >= 0) + ret = -EIO; + goto out; +@@ -145,14 +150,14 @@ out: + return ret; + } + +-static int v1_write_file_info(struct super_block *sb, int type) ++static int v1_write_file_info(struct dqhash *hash, int type) + { +- struct quota_info *dqopt = sb_dqopt(sb); ++ struct quota_info *dqopt = dqh_dqopt(hash); + struct v1_disk_dqblk dqblk; + int ret; + + dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY; +- if ((ret = sb->s_op->quota_read(sb, type, (char *)&dqblk, ++ if ((ret = hash->dqh_sb->s_op->quota_read(hash, type, (char *)&dqblk, + sizeof(struct v1_disk_dqblk), v1_dqoff(0))) != sizeof(struct v1_disk_dqblk)) { + if (ret >= 0) + ret = -EIO; +@@ -160,7 +165,7 @@ static int v1_write_file_info(struct sup + } + dqblk.dqb_itime = dqopt->info[type].dqi_igrace; + dqblk.dqb_btime = dqopt->info[type].dqi_bgrace; +- ret = sb->s_op->quota_write(sb, type, (char *)&dqblk, ++ ret = hash->dqh_sb->s_op->quota_write(hash, type, (char *)&dqblk, + sizeof(struct v1_disk_dqblk), v1_dqoff(0)); + if (ret == sizeof(struct v1_disk_dqblk)) + ret = 0; +Index: linux-2.6.16/fs/quota_v2.c +=================================================================== +--- linux-2.6.16.orig/fs/quota_v2.c ++++ linux-2.6.16/fs/quota_v2.c +@@ -26,14 +26,15 @@ typedef char *dqbuf_t; + #define GETENTRIES(buf) ((struct v2_disk_dqblk *)(((char *)buf)+sizeof(struct v2_disk_dqdbheader))) + + /* Check whether given file is really vfsv0 quotafile */ +-static int v2_check_quota_file(struct super_block *sb, int type) ++static int v2_check_quota_file(struct dqhash *hash, int type) + { + struct v2_disk_dqheader dqhead; + ssize_t size; + static const uint quota_magics[] = V2_INITQMAGICS; + static const uint quota_versions[] = V2_INITQVERSIONS; + +- size = sb->s_op->quota_read(sb, type, (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0); ++ size = hash->dqh_sb->s_op->quota_read(hash, type, ++ (char *)&dqhead, sizeof(struct v2_disk_dqheader), 0); + if (size != sizeof(struct v2_disk_dqheader)) { + printk("quota_v2: failed read expected=%zd got=%zd\n", + sizeof(struct v2_disk_dqheader), size); +@@ -46,17 +47,17 @@ static int v2_check_quota_file(struct su + } + + /* Read information header from quota file */ +-static int v2_read_file_info(struct super_block *sb, int type) ++static int v2_read_file_info(struct dqhash *hash, int type) + { + struct v2_disk_dqinfo dinfo; +- struct mem_dqinfo *info = sb_dqopt(sb)->info+type; ++ struct mem_dqinfo *info = dqh_dqopt(hash)->info+type; + ssize_t size; + +- size = sb->s_op->quota_read(sb, type, (char *)&dinfo, +- sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF); ++ size = hash->dqh_sb->s_op->quota_read(hash, type, ++ (char *)&dinfo, sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF); + if (size != sizeof(struct v2_disk_dqinfo)) { + printk(KERN_WARNING "Can't read info structure on device %s.\n", +- sb->s_id); ++ hash->dqh_sb->s_id); + return -1; + } + info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace); +@@ -69,10 +70,10 @@ static int v2_read_file_info(struct supe + } + + /* Write information header to quota file */ +-static int v2_write_file_info(struct super_block *sb, int type) ++static int v2_write_file_info(struct dqhash *hash, int type) + { + struct v2_disk_dqinfo dinfo; +- struct mem_dqinfo *info = sb_dqopt(sb)->info+type; ++ struct mem_dqinfo *info = dqh_dqopt(hash)->info+type; + ssize_t size; + + spin_lock(&dq_data_lock); +@@ -84,11 +85,11 @@ static int v2_write_file_info(struct sup + dinfo.dqi_blocks = cpu_to_le32(info->u.v2_i.dqi_blocks); + dinfo.dqi_free_blk = cpu_to_le32(info->u.v2_i.dqi_free_blk); + dinfo.dqi_free_entry = cpu_to_le32(info->u.v2_i.dqi_free_entry); +- size = sb->s_op->quota_write(sb, type, (char *)&dinfo, ++ size = hash->dqh_sb->s_op->quota_write(hash, type, (char *)&dinfo, + sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF); + if (size != sizeof(struct v2_disk_dqinfo)) { + printk(KERN_WARNING "Can't write info structure on device %s.\n", +- sb->s_id); ++ hash->dqh_sb->s_id); + return -1; + } + return 0; +@@ -132,24 +133,24 @@ static inline void freedqbuf(dqbuf_t buf + kfree(buf); + } + +-static inline ssize_t read_blk(struct super_block *sb, int type, uint blk, dqbuf_t buf) ++static inline ssize_t read_blk(struct dqhash *hash, int type, uint blk, dqbuf_t buf) + { + memset(buf, 0, V2_DQBLKSIZE); +- return sb->s_op->quota_read(sb, type, (char *)buf, +- V2_DQBLKSIZE, blk << V2_DQBLKSIZE_BITS); ++ return hash->dqh_sb->s_op->quota_read(hash, type, ++ (char *)buf, V2_DQBLKSIZE, blk << V2_DQBLKSIZE_BITS); + } + +-static inline ssize_t write_blk(struct super_block *sb, int type, uint blk, dqbuf_t buf) ++static inline ssize_t write_blk(struct dqhash *hash, int type, uint blk, dqbuf_t buf) + { +- return sb->s_op->quota_write(sb, type, (char *)buf, +- V2_DQBLKSIZE, blk << V2_DQBLKSIZE_BITS); ++ return hash->dqh_sb->s_op->quota_write(hash, type, ++ (char *)buf, V2_DQBLKSIZE, blk << V2_DQBLKSIZE_BITS); + } + + /* Remove empty block from list and return it */ +-static int get_free_dqblk(struct super_block *sb, int type) ++static int get_free_dqblk(struct dqhash *hash, int type) + { + dqbuf_t buf = getdqbuf(); +- struct mem_dqinfo *info = sb_dqinfo(sb, type); ++ struct mem_dqinfo *info = dqh_dqinfo(hash, type); + struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf; + int ret, blk; + +@@ -157,18 +158,18 @@ static int get_free_dqblk(struct super_b + return -ENOMEM; + if (info->u.v2_i.dqi_free_blk) { + blk = info->u.v2_i.dqi_free_blk; +- if ((ret = read_blk(sb, type, blk, buf)) < 0) ++ if ((ret = read_blk(hash, type, blk, buf)) < 0) + goto out_buf; + info->u.v2_i.dqi_free_blk = le32_to_cpu(dh->dqdh_next_free); + } + else { + memset(buf, 0, V2_DQBLKSIZE); + /* Assure block allocation... */ +- if ((ret = write_blk(sb, type, info->u.v2_i.dqi_blocks, buf)) < 0) ++ if ((ret = write_blk(hash, type, info->u.v2_i.dqi_blocks, buf)) < 0) + goto out_buf; + blk = info->u.v2_i.dqi_blocks++; + } +- mark_info_dirty(sb, type); ++ mark_info_dirty(hash, type); + ret = blk; + out_buf: + freedqbuf(buf); +@@ -176,9 +177,9 @@ out_buf: + } + + /* Insert empty block to the list */ +-static int put_free_dqblk(struct super_block *sb, int type, dqbuf_t buf, uint blk) ++static int put_free_dqblk(struct dqhash *hash, int type, dqbuf_t buf, uint blk) + { +- struct mem_dqinfo *info = sb_dqinfo(sb, type); ++ struct mem_dqinfo *info = dqh_dqinfo(hash, type); + struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf; + int err; + +@@ -186,18 +187,18 @@ static int put_free_dqblk(struct super_b + dh->dqdh_prev_free = cpu_to_le32(0); + dh->dqdh_entries = cpu_to_le16(0); + info->u.v2_i.dqi_free_blk = blk; +- mark_info_dirty(sb, type); ++ mark_info_dirty(hash, type); + /* Some strange block. We had better leave it... */ +- if ((err = write_blk(sb, type, blk, buf)) < 0) ++ if ((err = write_blk(hash, type, blk, buf)) < 0) + return err; + return 0; + } + + /* Remove given block from the list of blocks with free entries */ +-static int remove_free_dqentry(struct super_block *sb, int type, dqbuf_t buf, uint blk) ++static int remove_free_dqentry(struct dqhash *hash, int type, dqbuf_t buf, uint blk) + { + dqbuf_t tmpbuf = getdqbuf(); +- struct mem_dqinfo *info = sb_dqinfo(sb, type); ++ struct mem_dqinfo *info = dqh_dqinfo(hash, type); + struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf; + uint nextblk = le32_to_cpu(dh->dqdh_next_free), prevblk = le32_to_cpu(dh->dqdh_prev_free); + int err; +@@ -205,27 +206,27 @@ static int remove_free_dqentry(struct su + if (!tmpbuf) + return -ENOMEM; + if (nextblk) { +- if ((err = read_blk(sb, type, nextblk, tmpbuf)) < 0) ++ if ((err = read_blk(hash, type, nextblk, tmpbuf)) < 0) + goto out_buf; + ((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = dh->dqdh_prev_free; +- if ((err = write_blk(sb, type, nextblk, tmpbuf)) < 0) ++ if ((err = write_blk(hash, type, nextblk, tmpbuf)) < 0) + goto out_buf; + } + if (prevblk) { +- if ((err = read_blk(sb, type, prevblk, tmpbuf)) < 0) ++ if ((err = read_blk(hash, type, prevblk, tmpbuf)) < 0) + goto out_buf; + ((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_next_free = dh->dqdh_next_free; +- if ((err = write_blk(sb, type, prevblk, tmpbuf)) < 0) ++ if ((err = write_blk(hash, type, prevblk, tmpbuf)) < 0) + goto out_buf; + } + else { + info->u.v2_i.dqi_free_entry = nextblk; +- mark_info_dirty(sb, type); ++ mark_info_dirty(hash, type); + } + freedqbuf(tmpbuf); + dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0); + /* No matter whether write succeeds block is out of list */ +- if (write_blk(sb, type, blk, buf) < 0) ++ if (write_blk(hash, type, blk, buf) < 0) + printk(KERN_ERR "VFS: Can't write block (%u) with free entries.\n", blk); + return 0; + out_buf: +@@ -234,10 +235,10 @@ out_buf: + } + + /* Insert given block to the beginning of list with free entries */ +-static int insert_free_dqentry(struct super_block *sb, int type, dqbuf_t buf, uint blk) ++static int insert_free_dqentry(struct dqhash *hash, int type, dqbuf_t buf, uint blk) + { + dqbuf_t tmpbuf = getdqbuf(); +- struct mem_dqinfo *info = sb_dqinfo(sb, type); ++ struct mem_dqinfo *info = dqh_dqinfo(hash, type); + struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf; + int err; + +@@ -245,18 +246,18 @@ static int insert_free_dqentry(struct su + return -ENOMEM; + dh->dqdh_next_free = cpu_to_le32(info->u.v2_i.dqi_free_entry); + dh->dqdh_prev_free = cpu_to_le32(0); +- if ((err = write_blk(sb, type, blk, buf)) < 0) ++ if ((err = write_blk(hash, type, blk, buf)) < 0) + goto out_buf; + if (info->u.v2_i.dqi_free_entry) { +- if ((err = read_blk(sb, type, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0) ++ if ((err = read_blk(hash, type, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0) + goto out_buf; + ((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = cpu_to_le32(blk); +- if ((err = write_blk(sb, type, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0) ++ if ((err = write_blk(hash, type, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0) + goto out_buf; + } + freedqbuf(tmpbuf); + info->u.v2_i.dqi_free_entry = blk; +- mark_info_dirty(sb, type); ++ mark_info_dirty(hash, type); + return 0; + out_buf: + freedqbuf(tmpbuf); +@@ -266,8 +267,9 @@ out_buf: + /* Find space for dquot */ + static uint find_free_dqentry(struct dquot *dquot, int *err) + { +- struct super_block *sb = dquot->dq_sb; +- struct mem_dqinfo *info = sb_dqopt(sb)->info+dquot->dq_type; ++ // struct super_block *sb = dquot->dq_sb; ++ struct dqhash *dqh = dquot->dq_dqh; ++ struct mem_dqinfo *info = dqh_dqopt(dqh)->info+dquot->dq_type; + uint blk, i; + struct v2_disk_dqdbheader *dh; + struct v2_disk_dqblk *ddquot; +@@ -283,11 +285,11 @@ static uint find_free_dqentry(struct dqu + ddquot = GETENTRIES(buf); + if (info->u.v2_i.dqi_free_entry) { + blk = info->u.v2_i.dqi_free_entry; +- if ((*err = read_blk(sb, dquot->dq_type, blk, buf)) < 0) ++ if ((*err = read_blk(dqh, dquot->dq_type, blk, buf)) < 0) + goto out_buf; + } + else { +- blk = get_free_dqblk(sb, dquot->dq_type); ++ blk = get_free_dqblk(dqh, dquot->dq_type); + if ((int)blk < 0) { + *err = blk; + freedqbuf(buf); +@@ -296,10 +298,10 @@ static uint find_free_dqentry(struct dqu + memset(buf, 0, V2_DQBLKSIZE); + /* This is enough as block is already zeroed and entry list is empty... */ + info->u.v2_i.dqi_free_entry = blk; +- mark_info_dirty(sb, dquot->dq_type); ++ mark_info_dirty(dqh, dquot->dq_type); + } + if (le16_to_cpu(dh->dqdh_entries)+1 >= V2_DQSTRINBLK) /* Block will be full? */ +- if ((*err = remove_free_dqentry(sb, dquot->dq_type, buf, blk)) < 0) { ++ if ((*err = remove_free_dqentry(dqh, dquot->dq_type, buf, blk)) < 0) { + printk(KERN_ERR "VFS: find_free_dqentry(): Can't remove block (%u) from entry free list.\n", blk); + goto out_buf; + } +@@ -314,7 +316,7 @@ static uint find_free_dqentry(struct dqu + goto out_buf; + } + #endif +- if ((*err = write_blk(sb, dquot->dq_type, blk, buf)) < 0) { ++ if ((*err = write_blk(dqh, dquot->dq_type, blk, buf)) < 0) { + printk(KERN_ERR "VFS: find_free_dqentry(): Can't write quota data block %u.\n", blk); + goto out_buf; + } +@@ -329,7 +331,7 @@ out_buf: + /* Insert reference to structure into the trie */ + static int do_insert_tree(struct dquot *dquot, uint *treeblk, int depth) + { +- struct super_block *sb = dquot->dq_sb; ++ struct dqhash *dqh = dquot->dq_dqh; + dqbuf_t buf; + int ret = 0, newson = 0, newact = 0; + __le32 *ref; +@@ -338,7 +340,7 @@ static int do_insert_tree(struct dquot * + if (!(buf = getdqbuf())) + return -ENOMEM; + if (!*treeblk) { +- ret = get_free_dqblk(sb, dquot->dq_type); ++ ret = get_free_dqblk(dqh, dquot->dq_type); + if (ret < 0) + goto out_buf; + *treeblk = ret; +@@ -346,7 +348,7 @@ static int do_insert_tree(struct dquot * + newact = 1; + } + else { +- if ((ret = read_blk(sb, dquot->dq_type, *treeblk, buf)) < 0) { ++ if ((ret = read_blk(dqh, dquot->dq_type, *treeblk, buf)) < 0) { + printk(KERN_ERR "VFS: Can't read tree quota block %u.\n", *treeblk); + goto out_buf; + } +@@ -369,10 +371,10 @@ static int do_insert_tree(struct dquot * + ret = do_insert_tree(dquot, &newblk, depth+1); + if (newson && ret >= 0) { + ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(newblk); +- ret = write_blk(sb, dquot->dq_type, *treeblk, buf); ++ ret = write_blk(dqh, dquot->dq_type, *treeblk, buf); + } + else if (newact && ret < 0) +- put_free_dqblk(sb, dquot->dq_type, buf, *treeblk); ++ put_free_dqblk(dqh, dquot->dq_type, buf, *treeblk); + out_buf: + freedqbuf(buf); + return ret; +@@ -409,10 +411,11 @@ static int v2_write_dquot(struct dquot * + if (!memcmp(&empty, &ddquot, sizeof(struct v2_disk_dqblk))) + ddquot.dqb_itime = cpu_to_le64(1); + spin_unlock(&dq_data_lock); +- ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, ++ ret = dquot->dq_dqh->dqh_sb->s_op->quota_write(dquot->dq_dqh, type, + (char *)&ddquot, sizeof(struct v2_disk_dqblk), dquot->dq_off); + if (ret != sizeof(struct v2_disk_dqblk)) { +- printk(KERN_WARNING "VFS: dquota write failed on dev %s\n", dquot->dq_sb->s_id); ++ printk(KERN_WARNING "VFS: dquota write failed on dev %s\n", ++ dquot->dq_dqh->dqh_sb->s_id); + if (ret >= 0) + ret = -ENOSPC; + } +@@ -426,7 +429,8 @@ static int v2_write_dquot(struct dquot * + /* Free dquot entry in data block */ + static int free_dqentry(struct dquot *dquot, uint blk) + { +- struct super_block *sb = dquot->dq_sb; ++ // struct super_block *sb = dquot->dq_sb; ++ struct dqhash *dqh = dquot->dq_dqh; + int type = dquot->dq_type; + struct v2_disk_dqdbheader *dh; + dqbuf_t buf = getdqbuf(); +@@ -440,15 +444,15 @@ static int free_dqentry(struct dquot *dq + (uint)(dquot->dq_off >> V2_DQBLKSIZE_BITS)); + goto out_buf; + } +- if ((ret = read_blk(sb, type, blk, buf)) < 0) { ++ if ((ret = read_blk(dqh, type, blk, buf)) < 0) { + printk(KERN_ERR "VFS: Can't read quota data block %u\n", blk); + goto out_buf; + } + dh = (struct v2_disk_dqdbheader *)buf; + dh->dqdh_entries = cpu_to_le16(le16_to_cpu(dh->dqdh_entries)-1); + if (!le16_to_cpu(dh->dqdh_entries)) { /* Block got free? */ +- if ((ret = remove_free_dqentry(sb, type, buf, blk)) < 0 || +- (ret = put_free_dqblk(sb, type, buf, blk)) < 0) { ++ if ((ret = remove_free_dqentry(dqh, type, buf, blk)) < 0 || ++ (ret = put_free_dqblk(dqh, type, buf, blk)) < 0) { + printk(KERN_ERR "VFS: Can't move quota data block (%u) " + "to free list.\n", blk); + goto out_buf; +@@ -459,13 +463,13 @@ static int free_dqentry(struct dquot *dq + sizeof(struct v2_disk_dqblk)); + if (le16_to_cpu(dh->dqdh_entries) == V2_DQSTRINBLK-1) { + /* Insert will write block itself */ +- if ((ret = insert_free_dqentry(sb, type, buf, blk)) < 0) { ++ if ((ret = insert_free_dqentry(dqh, type, buf, blk)) < 0) { + printk(KERN_ERR "VFS: Can't insert quota data block (%u) to free entry list.\n", blk); + goto out_buf; + } + } + else +- if ((ret = write_blk(sb, type, blk, buf)) < 0) { ++ if ((ret = write_blk(dqh, type, blk, buf)) < 0) { + printk(KERN_ERR "VFS: Can't write quota data " + "block %u\n", blk); + goto out_buf; +@@ -480,7 +484,7 @@ out_buf: + /* Remove reference to dquot from tree */ + static int remove_tree(struct dquot *dquot, uint *blk, int depth) + { +- struct super_block *sb = dquot->dq_sb; ++ struct dqhash *dqh = dquot->dq_dqh; + int type = dquot->dq_type; + dqbuf_t buf = getdqbuf(); + int ret = 0; +@@ -489,7 +493,7 @@ static int remove_tree(struct dquot *dqu + + if (!buf) + return -ENOMEM; +- if ((ret = read_blk(sb, type, *blk, buf)) < 0) { ++ if ((ret = read_blk(dqh, type, *blk, buf)) < 0) { + printk(KERN_ERR "VFS: Can't read quota data block %u\n", *blk); + goto out_buf; + } +@@ -506,11 +510,11 @@ static int remove_tree(struct dquot *dqu + for (i = 0; i < V2_DQBLKSIZE && !buf[i]; i++); /* Block got empty? */ + /* Don't put the root block into the free block list */ + if (i == V2_DQBLKSIZE && *blk != V2_DQTREEOFF) { +- put_free_dqblk(sb, type, buf, *blk); ++ put_free_dqblk(dqh, type, buf, *blk); + *blk = 0; + } + else +- if ((ret = write_blk(sb, type, *blk, buf)) < 0) ++ if ((ret = write_blk(dqh, type, *blk, buf)) < 0) + printk(KERN_ERR "VFS: Can't write quota tree " + "block %u.\n", *blk); + } +@@ -539,7 +543,7 @@ static loff_t find_block_dqentry(struct + + if (!buf) + return -ENOMEM; +- if ((ret = read_blk(dquot->dq_sb, dquot->dq_type, blk, buf)) < 0) { ++ if ((ret = read_blk(dquot->dq_dqh, dquot->dq_type, blk, buf)) < 0) { + printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk); + goto out_buf; + } +@@ -578,7 +582,7 @@ static loff_t find_tree_dqentry(struct d + + if (!buf) + return -ENOMEM; +- if ((ret = read_blk(dquot->dq_sb, dquot->dq_type, blk, buf)) < 0) { ++ if ((ret = read_blk(dquot->dq_dqh, dquot->dq_type, blk, buf)) < 0) { + printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk); + goto out_buf; + } +@@ -610,7 +614,7 @@ static int v2_read_dquot(struct dquot *d + + #ifdef __QUOTA_V2_PARANOIA + /* Invalidated quota? */ +- if (!dquot->dq_sb || !sb_dqopt(dquot->dq_sb)->files[type]) { ++ if (!dquot->dq_dqh || !dqh_dqopt(dquot->dq_dqh)->files[type]) { + printk(KERN_ERR "VFS: Quota invalidated while reading!\n"); + return -EIO; + } +@@ -627,7 +631,7 @@ static int v2_read_dquot(struct dquot *d + } + else { + dquot->dq_off = offset; +- if ((ret = dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, ++ if ((ret = dquot->dq_dqh->dqh_sb->s_op->quota_read(dquot->dq_dqh, type, + (char *)&ddquot, sizeof(struct v2_disk_dqblk), offset)) + != sizeof(struct v2_disk_dqblk)) { + if (ret >= 0) +Index: linux-2.6.16/fs/read_write.c +=================================================================== +--- linux-2.6.16.orig/fs/read_write.c ++++ linux-2.6.16/fs/read_write.c +@@ -636,12 +636,77 @@ sys_writev(unsigned long fd, const struc + return ret; + } + ++ssize_t vfs_sendfile(struct file *out_file, struct file *in_file, loff_t *ppos, ++ size_t count, loff_t max) ++{ ++ struct inode * in_inode, * out_inode; ++ loff_t pos; ++ ssize_t ret; ++ ++ /* verify in_file */ ++ in_inode = in_file->f_dentry->d_inode; ++ if (!in_inode) ++ return -EINVAL; ++ if (!in_file->f_op || !in_file->f_op->sendfile) ++ return -EINVAL; ++ ++ if (!ppos) ++ ppos = &in_file->f_pos; ++ else ++ if (!(in_file->f_mode & FMODE_PREAD)) ++ return -ESPIPE; ++ ++ ret = rw_verify_area(READ, in_file, ppos, count); ++ if (ret < 0) ++ return ret; ++ count = ret; ++ ++ /* verify out_file */ ++ out_inode = out_file->f_dentry->d_inode; ++ if (!out_inode) ++ return -EINVAL; ++ if (!out_file->f_op || !out_file->f_op->sendpage) ++ return -EINVAL; ++ ++ ret = rw_verify_area(WRITE, out_file, &out_file->f_pos, count); ++ if (ret < 0) ++ return ret; ++ count = ret; ++ ++ ret = security_file_permission (out_file, MAY_WRITE); ++ if (ret) ++ return ret; ++ ++ if (!max) ++ max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes); ++ ++ pos = *ppos; ++ if (unlikely(pos < 0)) ++ return -EINVAL; ++ if (unlikely(pos + count > max)) { ++ if (pos >= max) ++ return -EOVERFLOW; ++ count = max - pos; ++ } ++ ++ ret = in_file->f_op->sendfile(in_file, ppos, count, file_send_actor, out_file); ++ ++ if (ret > 0) { ++ current->rchar += ret; ++ current->wchar += ret; ++ } ++ ++ if (*ppos > max) ++ return -EOVERFLOW; ++ return ret; ++} ++ ++EXPORT_SYMBOL(vfs_sendfile); ++ + static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos, + size_t count, loff_t max) + { + struct file * in_file, * out_file; +- struct inode * in_inode, * out_inode; +- loff_t pos; + ssize_t retval; + int fput_needed_in, fput_needed_out; + +@@ -654,22 +719,6 @@ static ssize_t do_sendfile(int out_fd, i + goto out; + if (!(in_file->f_mode & FMODE_READ)) + goto fput_in; +- retval = -EINVAL; +- in_inode = in_file->f_dentry->d_inode; +- if (!in_inode) +- goto fput_in; +- if (!in_file->f_op || !in_file->f_op->sendfile) +- goto fput_in; +- retval = -ESPIPE; +- if (!ppos) +- ppos = &in_file->f_pos; +- else +- if (!(in_file->f_mode & FMODE_PREAD)) +- goto fput_in; +- retval = rw_verify_area(READ, in_file, ppos, count); +- if (retval < 0) +- goto fput_in; +- count = retval; + + retval = security_file_permission (in_file, MAY_READ); + if (retval) +@@ -684,45 +733,12 @@ static ssize_t do_sendfile(int out_fd, i + goto fput_in; + if (!(out_file->f_mode & FMODE_WRITE)) + goto fput_out; +- retval = -EINVAL; +- if (!out_file->f_op || !out_file->f_op->sendpage) +- goto fput_out; +- out_inode = out_file->f_dentry->d_inode; +- retval = rw_verify_area(WRITE, out_file, &out_file->f_pos, count); +- if (retval < 0) +- goto fput_out; +- count = retval; +- +- retval = security_file_permission (out_file, MAY_WRITE); +- if (retval) +- goto fput_out; +- +- if (!max) +- max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes); +- +- pos = *ppos; +- retval = -EINVAL; +- if (unlikely(pos < 0)) +- goto fput_out; +- if (unlikely(pos + count > max)) { +- retval = -EOVERFLOW; +- if (pos >= max) +- goto fput_out; +- count = max - pos; +- } + +- retval = in_file->f_op->sendfile(in_file, ppos, count, file_send_actor, out_file); ++ retval = vfs_sendfile(out_file, in_file, ppos, count, max); + +- if (retval > 0) { +- current->rchar += retval; +- current->wchar += retval; +- } + current->syscr++; + current->syscw++; + +- if (*ppos > max) +- retval = -EOVERFLOW; +- + fput_out: + fput_light(out_file, fput_needed_out); + fput_in: +Index: linux-2.6.16/fs/reiserfs/bitmap.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/bitmap.c ++++ linux-2.6.16/fs/reiserfs/bitmap.c +@@ -13,6 +13,7 @@ + #include <linux/reiserfs_fs_sb.h> + #include <linux/reiserfs_fs_i.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + + #define PREALLOCATION_SIZE 9 + +@@ -411,8 +412,10 @@ static void _reiserfs_free_block(struct + set_sb_free_blocks(rs, sb_free_blocks(rs) + 1); + + journal_mark_dirty(th, s, sbh); +- if (for_unformatted) ++ if (for_unformatted) { ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK_NODIRTY(inode, 1); ++ } + } + + void reiserfs_free_block(struct reiserfs_transaction_handle *th, +@@ -1021,6 +1024,7 @@ static inline int blocknrs_and_prealloc_ + int passno = 0; + int nr_allocated = 0; + int bigalloc = 0; ++ int blocks; + + determine_prealloc_size(hint); + if (!hint->formatted_node) { +@@ -1030,19 +1034,30 @@ static inline int blocknrs_and_prealloc_ + "reiserquota: allocating %d blocks id=%u", + amount_needed, hint->inode->i_uid); + #endif +- quota_ret = +- DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, amount_needed); +- if (quota_ret) /* Quota exceeded? */ ++ quota_ret = DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, ++ amount_needed); ++ if (quota_ret) + return QUOTA_EXCEEDED; ++ if (DLIMIT_ALLOC_BLOCK(hint->inode, amount_needed)) { ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, ++ amount_needed); ++ return NO_DISK_SPACE; ++ } ++ + if (hint->preallocate && hint->prealloc_size) { + #ifdef REISERQUOTA_DEBUG + reiserfs_debug(s, REISERFS_DEBUG_CODE, + "reiserquota: allocating (prealloc) %d blocks id=%u", + hint->prealloc_size, hint->inode->i_uid); + #endif +- quota_ret = +- DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode, +- hint->prealloc_size); ++ quota_ret = DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode, ++ hint->prealloc_size); ++ if (!quota_ret && ++ DLIMIT_ALLOC_BLOCK(hint->inode, hint->prealloc_size)) { ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, ++ hint->prealloc_size); ++ quota_ret = 1; ++ } + if (quota_ret) + hint->preallocate = hint->prealloc_size = 0; + } +@@ -1093,7 +1108,10 @@ static inline int blocknrs_and_prealloc_ + nr_allocated, + hint->inode->i_uid); + #endif +- DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + hint->prealloc_size - nr_allocated); /* Free not allocated blocks */ ++ /* Free not allocated blocks */ ++ blocks = amount_needed + hint->prealloc_size - nr_allocated; ++ DLIMIT_FREE_BLOCK(hint->inode, blocks); ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks); + } + while (nr_allocated--) + reiserfs_free_block(hint->th, hint->inode, +@@ -1125,10 +1143,10 @@ static inline int blocknrs_and_prealloc_ + REISERFS_I(hint->inode)->i_prealloc_count, + hint->inode->i_uid); + #endif +- DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + +- hint->prealloc_size - nr_allocated - +- REISERFS_I(hint->inode)-> +- i_prealloc_count); ++ blocks = amount_needed + hint->prealloc_size - nr_allocated - ++ REISERFS_I(hint->inode)->i_prealloc_count; ++ DLIMIT_FREE_BLOCK(hint->inode, blocks); ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks); + } + + return CARRY_ON; +Index: linux-2.6.16/fs/reiserfs/file.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/file.c ++++ linux-2.6.16/fs/reiserfs/file.c +@@ -1574,6 +1574,7 @@ struct file_operations reiserfs_file_ope + .release = reiserfs_file_release, + .fsync = reiserfs_sync_file, + .sendfile = generic_file_sendfile, ++ .sendpage = generic_file_sendpage, + .aio_read = generic_file_aio_read, + .aio_write = reiserfs_aio_write, + }; +@@ -1586,4 +1587,5 @@ struct inode_operations reiserfs_file_in + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + }; +Index: linux-2.6.16/fs/reiserfs/inode.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/inode.c ++++ linux-2.6.16/fs/reiserfs/inode.c +@@ -17,6 +17,8 @@ + #include <linux/mpage.h> + #include <linux/writeback.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/tag.h> + + extern int reiserfs_default_io_size; /* default io size devuned in super.c */ + +@@ -57,6 +59,7 @@ void reiserfs_delete_inode(struct inode + * stat data deletion */ + if (!err) + DQUOT_FREE_INODE(inode); ++ DLIMIT_FREE_INODE(inode); + + if (journal_end(&th, inode->i_sb, jbegin_count)) { + mutex_unlock(&inode->i_mutex); +@@ -1126,6 +1129,8 @@ static void init_inode(struct inode *ino + struct buffer_head *bh; + struct item_head *ih; + __u32 rdev; ++ uid_t uid; ++ gid_t gid; + //int version = ITEM_VERSION_1; + + bh = PATH_PLAST_BUFFER(path); +@@ -1149,12 +1154,13 @@ static void init_inode(struct inode *ino + (struct stat_data_v1 *)B_I_PITEM(bh, ih); + unsigned long blocks; + ++ uid = sd_v1_uid(sd); ++ gid = sd_v1_gid(sd); ++ + set_inode_item_key_version(inode, KEY_FORMAT_3_5); + set_inode_sd_version(inode, STAT_DATA_V1); + inode->i_mode = sd_v1_mode(sd); + inode->i_nlink = sd_v1_nlink(sd); +- inode->i_uid = sd_v1_uid(sd); +- inode->i_gid = sd_v1_gid(sd); + inode->i_size = sd_v1_size(sd); + inode->i_atime.tv_sec = sd_v1_atime(sd); + inode->i_mtime.tv_sec = sd_v1_mtime(sd); +@@ -1196,11 +1202,12 @@ static void init_inode(struct inode *ino + // (directories and symlinks) + struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih); + ++ uid = sd_v2_uid(sd); ++ gid = sd_v2_gid(sd); ++ + inode->i_mode = sd_v2_mode(sd); + inode->i_nlink = sd_v2_nlink(sd); +- inode->i_uid = sd_v2_uid(sd); + inode->i_size = sd_v2_size(sd); +- inode->i_gid = sd_v2_gid(sd); + inode->i_mtime.tv_sec = sd_v2_mtime(sd); + inode->i_atime.tv_sec = sd_v2_atime(sd); + inode->i_ctime.tv_sec = sd_v2_ctime(sd); +@@ -1230,6 +1237,10 @@ static void init_inode(struct inode *ino + sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode); + } + ++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid); ++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid); ++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, 0); ++ + pathrelse(path); + if (S_ISREG(inode->i_mode)) { + inode->i_op = &reiserfs_file_inode_operations; +@@ -1252,13 +1263,15 @@ static void init_inode(struct inode *ino + static void inode2sd(void *sd, struct inode *inode, loff_t size) + { + struct stat_data *sd_v2 = (struct stat_data *)sd; ++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag); ++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag); + __u16 flags; + ++ set_sd_v2_uid(sd_v2, uid); ++ set_sd_v2_gid(sd_v2, gid); + set_sd_v2_mode(sd_v2, inode->i_mode); + set_sd_v2_nlink(sd_v2, inode->i_nlink); +- set_sd_v2_uid(sd_v2, inode->i_uid); + set_sd_v2_size(sd_v2, size); +- set_sd_v2_gid(sd_v2, inode->i_gid); + set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec); + set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec); + set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec); +@@ -1789,6 +1802,10 @@ int reiserfs_new_inode(struct reiserfs_t + + BUG_ON(!th->t_trans_id); + ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ err = -ENOSPC; ++ goto out_bad_dlimit; ++ } + if (DQUOT_ALLOC_INODE(inode)) { + err = -EDQUOT; + goto out_end_trans; +@@ -1974,6 +1991,9 @@ int reiserfs_new_inode(struct reiserfs_t + DQUOT_FREE_INODE(inode); + + out_end_trans: ++ DLIMIT_FREE_INODE(inode); ++ ++ out_bad_dlimit: + journal_end(th, th->t_super, th->t_blocks_allocated); + /* Drop can be outside and it needs more credits so it's better to have it outside */ + DQUOT_DROP(inode); +@@ -2701,6 +2721,14 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs, + inode->i_flags |= S_IMMUTABLE; + else + inode->i_flags &= ~S_IMMUTABLE; ++ if (sd_attrs & REISERFS_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ else ++ inode->i_flags &= ~S_IUNLINK; ++ if (sd_attrs & REISERFS_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ else ++ inode->i_flags &= ~S_BARRIER; + if (sd_attrs & REISERFS_APPEND_FL) + inode->i_flags |= S_APPEND; + else +@@ -2723,6 +2751,14 @@ void i_attrs_to_sd_attrs(struct inode *i + *sd_attrs |= REISERFS_IMMUTABLE_FL; + else + *sd_attrs &= ~REISERFS_IMMUTABLE_FL; ++ if (inode->i_flags & S_IUNLINK) ++ *sd_attrs |= REISERFS_IUNLINK_FL; ++ else ++ *sd_attrs &= ~REISERFS_IUNLINK_FL; ++ if (inode->i_flags & S_BARRIER) ++ *sd_attrs |= REISERFS_BARRIER_FL; ++ else ++ *sd_attrs &= ~REISERFS_BARRIER_FL; + if (inode->i_flags & S_SYNC) + *sd_attrs |= REISERFS_SYNC_FL; + else +@@ -2900,6 +2936,22 @@ static ssize_t reiserfs_direct_IO(int rw + reiserfs_get_blocks_direct_io, NULL); + } + ++int reiserfs_sync_flags(struct inode *inode) ++{ ++ u16 oldflags, newflags; ++ ++ oldflags = REISERFS_I(inode)->i_attrs; ++ newflags = oldflags; ++ i_attrs_to_sd_attrs(inode, &newflags); ++ ++ if (oldflags ^ newflags) { ++ REISERFS_I(inode)->i_attrs = newflags; ++ inode->i_ctime = CURRENT_TIME_SEC; ++ mark_inode_dirty(inode); ++ } ++ return 0; ++} ++ + int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) + { + struct inode *inode = dentry->d_inode; +@@ -2944,9 +2996,11 @@ int reiserfs_setattr(struct dentry *dent + } + + error = inode_change_ok(inode, attr); ++ + if (!error) { + if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || +- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { ++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) || ++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) { + error = reiserfs_chown_xattrs(inode, attr); + + if (!error) { +@@ -2976,6 +3030,9 @@ int reiserfs_setattr(struct dentry *dent + inode->i_uid = attr->ia_uid; + if (attr->ia_valid & ATTR_GID) + inode->i_gid = attr->ia_gid; ++ if ((attr->ia_valid & ATTR_TAG) && ++ IS_TAGGED(inode)) ++ inode->i_tag = attr->ia_tag; + mark_inode_dirty(inode); + error = + journal_end(&th, inode->i_sb, jbegin_count); +Index: linux-2.6.16/fs/reiserfs/ioctl.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/ioctl.c ++++ linux-2.6.16/fs/reiserfs/ioctl.c +@@ -4,6 +4,7 @@ + + #include <linux/capability.h> + #include <linux/fs.h> ++#include <linux/mount.h> + #include <linux/reiserfs_fs.h> + #include <linux/time.h> + #include <asm/uaccess.h> +@@ -23,7 +24,7 @@ static int reiserfs_unpack(struct inode + int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, + unsigned long arg) + { +- unsigned int flags; ++ unsigned int flags, oldflags; + + switch (cmd) { + case REISERFS_IOC_UNPACK: +@@ -42,12 +43,14 @@ int reiserfs_ioctl(struct inode *inode, + + flags = REISERFS_I(inode)->i_attrs; + i_attrs_to_sd_attrs(inode, (__u16 *) & flags); ++ flags &= REISERFS_FL_USER_VISIBLE; + return put_user(flags, (int __user *)arg); + case REISERFS_IOC_SETFLAGS:{ + if (!reiserfs_attrs(inode->i_sb)) + return -ENOTTY; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) +@@ -57,10 +60,12 @@ int reiserfs_ioctl(struct inode *inode, + if (get_user(flags, (int __user *)arg)) + return -EFAULT; + +- if (((flags ^ REISERFS_I(inode)-> +- i_attrs) & (REISERFS_IMMUTABLE_FL | +- REISERFS_APPEND_FL)) +- && !capable(CAP_LINUX_IMMUTABLE)) ++ oldflags = REISERFS_I(inode) -> i_attrs; ++ if (((oldflags & REISERFS_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & ++ (REISERFS_IMMUTABLE_FL | REISERFS_IUNLINK_FL | ++ REISERFS_APPEND_FL))) && ++ !capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + + if ((flags & REISERFS_NOTAIL_FL) && +@@ -71,6 +76,9 @@ int reiserfs_ioctl(struct inode *inode, + if (result) + return result; + } ++ ++ flags = flags & REISERFS_FL_USER_MODIFIABLE; ++ flags |= oldflags & ~REISERFS_FL_USER_MODIFIABLE; + sd_attrs_to_i_attrs(flags, inode); + REISERFS_I(inode)->i_attrs = flags; + inode->i_ctime = CURRENT_TIME_SEC; +@@ -82,7 +90,8 @@ int reiserfs_ioctl(struct inode *inode, + case REISERFS_IOC_SETVERSION: + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + return -EPERM; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + if (get_user(inode->i_generation, (int __user *)arg)) + return -EFAULT; +Index: linux-2.6.16/fs/reiserfs/namei.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/namei.c ++++ linux-2.6.16/fs/reiserfs/namei.c +@@ -19,6 +19,7 @@ + #include <linux/reiserfs_xattr.h> + #include <linux/smp_lock.h> + #include <linux/quotaops.h> ++#include <linux/vs_tag.h> + + #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { i->i_nlink++; if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; } + #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) i->i_nlink--; +@@ -365,6 +366,7 @@ static struct dentry *reiserfs_lookup(st + reiserfs_write_unlock(dir->i_sb); + return ERR_PTR(-EACCES); + } ++ dx_propagate_tag(nd, inode); + + /* Propogate the priv_object flag so we know we're in the priv tree */ + if (is_reiserfs_priv_object(dir)) +@@ -600,6 +602,7 @@ static int new_inode_init(struct inode * + } else { + inode->i_gid = current->fsgid; + } ++ inode->i_tag = dx_current_fstag(inode->i_sb); + DQUOT_INIT(inode); + return 0; + } +@@ -1546,6 +1549,7 @@ struct inode_operations reiserfs_dir_ino + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + }; + + /* +@@ -1562,6 +1566,7 @@ struct inode_operations reiserfs_symlink + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + + }; + +@@ -1575,5 +1580,6 @@ struct inode_operations reiserfs_special + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + + }; +Index: linux-2.6.16/fs/reiserfs/stree.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/stree.c ++++ linux-2.6.16/fs/reiserfs/stree.c +@@ -57,6 +57,7 @@ + #include <linux/smp_lock.h> + #include <linux/buffer_head.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + + /* Does the buffer contain a disk block which is in the tree. */ + inline int B_IS_IN_TREE(const struct buffer_head *p_s_bh) +@@ -1365,6 +1366,7 @@ int reiserfs_delete_item(struct reiserfs + "reiserquota delete_item(): freeing %u, id=%u type=%c", + quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih)); + #endif ++ DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes); + DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes); + + /* Return deleted body length */ +@@ -1453,6 +1455,7 @@ void reiserfs_delete_solid_item(struct r + #endif + DQUOT_FREE_SPACE_NODIRTY(inode, + quota_cut_bytes); ++ DLIMIT_FREE_SPACE(inode, quota_cut_bytes); + } + break; + } +@@ -1808,6 +1811,7 @@ int reiserfs_cut_from_item(struct reiser + "reiserquota cut_from_item(): freeing %u id=%u type=%c", + quota_cut_bytes, p_s_inode->i_uid, '?'); + #endif ++ DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes); + DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes); + return n_ret_value; + } +@@ -2048,6 +2052,11 @@ int reiserfs_paste_into_item(struct reis + pathrelse(p_s_search_path); + return -EDQUOT; + } ++ if (DLIMIT_ALLOC_SPACE(inode, n_pasted_size)) { ++ DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size); ++ pathrelse(p_s_search_path); ++ return -ENOSPC; ++ } + init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path, + n_pasted_size); + #ifdef DISPLACE_NEW_PACKING_LOCALITIES +@@ -2100,6 +2109,7 @@ int reiserfs_paste_into_item(struct reis + n_pasted_size, inode->i_uid, + key2type(&(p_s_key->on_disk_key))); + #endif ++ DLIMIT_FREE_SPACE(inode, n_pasted_size); + DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size); + return retval; + } +@@ -2137,6 +2147,11 @@ int reiserfs_insert_item(struct reiserfs + pathrelse(p_s_path); + return -EDQUOT; + } ++ if (DLIMIT_ALLOC_SPACE(inode, quota_bytes)) { ++ DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes); ++ pathrelse(p_s_path); ++ return -ENOSPC; ++ } + } + init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path, + IH_SIZE + ih_item_len(p_s_ih)); +@@ -2184,7 +2199,9 @@ int reiserfs_insert_item(struct reiserfs + "reiserquota insert_item(): freeing %u id=%u type=%c", + quota_bytes, inode->i_uid, head2type(p_s_ih)); + #endif +- if (inode) ++ if (inode) { ++ DLIMIT_FREE_SPACE(inode, quota_bytes); + DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes); ++ } + return retval; + } +Index: linux-2.6.16/fs/reiserfs/super.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/super.c ++++ linux-2.6.16/fs/reiserfs/super.c +@@ -138,7 +138,7 @@ static int remove_save_link_only(struct + } + + #ifdef CONFIG_QUOTA +-static int reiserfs_quota_on_mount(struct super_block *, int); ++static int reiserfs_quota_on_mount(struct dqhash *, int); + #endif + + /* look for uncompleted unlinks and truncates and complete them */ +@@ -178,7 +178,7 @@ static int finish_unfinished(struct supe + /* Turn on quotas so that they are updated correctly */ + for (i = 0; i < MAXQUOTAS; i++) { + if (REISERFS_SB(s)->s_qf_names[i]) { +- int ret = reiserfs_quota_on_mount(s, i); ++ int ret = reiserfs_quota_on_mount(s->s_dqh, i); + if (ret < 0) + reiserfs_warning(s, + "reiserfs: cannot turn on journalled quota: error %d", +@@ -292,8 +292,8 @@ static int finish_unfinished(struct supe + #ifdef CONFIG_QUOTA + /* Turn quotas off */ + for (i = 0; i < MAXQUOTAS; i++) { +- if (sb_dqopt(s)->files[i]) +- vfs_quota_off_mount(s, i); ++ if (dqh_dqopt(s->s_dqh)->files[i]) ++ vfs_quota_off_mount(s->s_dqh, i); + } + if (ms_active_set) + /* Restore the flag back */ +@@ -578,9 +578,9 @@ static void reiserfs_clear_inode(struct + } + + #ifdef CONFIG_QUOTA +-static ssize_t reiserfs_quota_write(struct super_block *, int, const char *, ++static ssize_t reiserfs_quota_write(struct dqhash *, int, const char *, + size_t, loff_t); +-static ssize_t reiserfs_quota_read(struct super_block *, int, char *, size_t, ++static ssize_t reiserfs_quota_read(struct dqhash *, int, char *, size_t, + loff_t); + #endif + +@@ -613,8 +613,8 @@ static int reiserfs_write_dquot(struct d + static int reiserfs_acquire_dquot(struct dquot *); + static int reiserfs_release_dquot(struct dquot *); + static int reiserfs_mark_dquot_dirty(struct dquot *); +-static int reiserfs_write_info(struct super_block *, int); +-static int reiserfs_quota_on(struct super_block *, int, int, char *); ++static int reiserfs_write_info(struct dqhash *, int); ++static int reiserfs_quota_on(struct dqhash *, int, int, char *); + + static struct dquot_operations reiserfs_quota_operations = { + .initialize = reiserfs_dquot_initialize, +@@ -882,6 +882,14 @@ static int reiserfs_parse_options(struct + {"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT}, + {"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT}, + #endif ++#ifndef CONFIG_TAGGING_NONE ++ {"tagxid",.setmask = 1 << REISERFS_TAGGED}, ++ {"tag",.setmask = 1 << REISERFS_TAGGED}, ++ {"notag",.clrmask = 1 << REISERFS_TAGGED}, ++#endif ++#ifdef CONFIG_PROPAGATE ++ {"tag",.arg_required = 'T',.values = NULL}, ++#endif + #ifdef CONFIG_REISERFS_FS_POSIX_ACL + {"acl",.setmask = 1 << REISERFS_POSIXACL}, + {"noacl",.clrmask = 1 << REISERFS_POSIXACL}, +@@ -989,7 +997,7 @@ static int reiserfs_parse_options(struct + if (c == 'u' || c == 'g') { + int qtype = c == 'u' ? USRQUOTA : GRPQUOTA; + +- if (sb_any_quota_enabled(s)) { ++ if (dqh_any_quota_enabled(s->s_dqh)) { + reiserfs_warning(s, + "reiserfs_parse_options: cannot change journalled quota options when quota turned on."); + return 0; +@@ -1052,7 +1060,7 @@ static int reiserfs_parse_options(struct + } + /* This checking is not precise wrt the quota type but for our purposes it is sufficient */ + if (!(*mount_options & (1 << REISERFS_QUOTA)) +- && sb_any_quota_enabled(s)) { ++ && dqh_any_quota_enabled(s->s_dqh)) { + reiserfs_warning(s, + "reiserfs_parse_options: quota options must be present when quota is turned on."); + return 0; +@@ -1154,6 +1162,12 @@ static int reiserfs_remount(struct super + return -EINVAL; + } + ++ if ((mount_options & (1 << REISERFS_TAGGED)) && ++ !(s->s_flags & MS_TAGGED)) { ++ reiserfs_warning(s, "reiserfs: tagging not permitted on remount."); ++ return -EINVAL; ++ } ++ + handle_attrs(s); + + /* Add options that are safe here */ +@@ -1456,7 +1470,7 @@ static int read_super_block(struct super + s->s_export_op = &reiserfs_export_ops; + #ifdef CONFIG_QUOTA + s->s_qcop = &reiserfs_qctl_operations; +- s->dq_op = &reiserfs_quota_operations; ++ s->s_qop = &reiserfs_quota_operations; + #endif + + /* new format is limited by the 32 bit wide i_blocks field, want to +@@ -1729,6 +1743,10 @@ static int reiserfs_fill_super(struct su + goto error; + } + ++ /* map mount option tagxid */ ++ if (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TAGGED)) ++ s->s_flags |= MS_TAGGED; ++ + rs = SB_DISK_SUPER_BLOCK(s); + /* Let's do basic sanity check to verify that underlying device is not + smaller than the filesystem. If the check fails then abort and scream, +@@ -2003,16 +2021,16 @@ static int reiserfs_write_dquot(struct d + struct reiserfs_transaction_handle th; + int ret, err; + +- reiserfs_write_lock(dquot->dq_sb); ++ reiserfs_write_lock(dquot->dq_dqh->dqh_sb); + ret = +- journal_begin(&th, dquot->dq_sb, +- REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); ++ journal_begin(&th, dquot->dq_dqh->dqh_sb, ++ REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (ret) + goto out; + ret = dquot_commit(dquot); + err = +- journal_end(&th, dquot->dq_sb, +- REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); ++ journal_end(&th, dquot->dq_dqh->dqh_sb, ++ REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (!ret && err) + ret = err; + out: +@@ -2025,20 +2043,20 @@ static int reiserfs_acquire_dquot(struct + struct reiserfs_transaction_handle th; + int ret, err; + +- reiserfs_write_lock(dquot->dq_sb); ++ reiserfs_write_lock(dquot->dq_dqh->dqh_sb); + ret = +- journal_begin(&th, dquot->dq_sb, +- REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb)); ++ journal_begin(&th, dquot->dq_dqh->dqh_sb, ++ REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (ret) + goto out; + ret = dquot_acquire(dquot); + err = +- journal_end(&th, dquot->dq_sb, +- REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb)); ++ journal_end(&th, dquot->dq_dqh->dqh_sb, ++ REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (!ret && err) + ret = err; + out: +- reiserfs_write_unlock(dquot->dq_sb); ++ reiserfs_write_unlock(dquot->dq_dqh->dqh_sb); + return ret; + } + +@@ -2047,37 +2065,38 @@ static int reiserfs_release_dquot(struct + struct reiserfs_transaction_handle th; + int ret, err; + +- reiserfs_write_lock(dquot->dq_sb); ++ reiserfs_write_lock(dquot->dq_dqh->dqh_sb); + ret = +- journal_begin(&th, dquot->dq_sb, +- REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb)); ++ journal_begin(&th, dquot->dq_dqh->dqh_sb, ++ REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (ret) + goto out; + ret = dquot_release(dquot); + err = +- journal_end(&th, dquot->dq_sb, +- REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb)); ++ journal_end(&th, dquot->dq_dqh->dqh_sb, ++ REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_dqh->dqh_sb)); + if (!ret && err) + ret = err; + out: +- reiserfs_write_unlock(dquot->dq_sb); ++ reiserfs_write_unlock(dquot->dq_dqh->dqh_sb); + return ret; + } + + static int reiserfs_mark_dquot_dirty(struct dquot *dquot) + { + /* Are we journalling quotas? */ +- if (REISERFS_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] || +- REISERFS_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) { ++ if (REISERFS_SB(dquot->dq_dqh->dqh_sb)->s_qf_names[USRQUOTA] || ++ REISERFS_SB(dquot->dq_dqh->dqh_sb)->s_qf_names[GRPQUOTA]) { + dquot_mark_dquot_dirty(dquot); + return reiserfs_write_dquot(dquot); + } else + return dquot_mark_dquot_dirty(dquot); + } + +-static int reiserfs_write_info(struct super_block *sb, int type) ++static int reiserfs_write_info(struct dqhash *hash, int type) + { + struct reiserfs_transaction_handle th; ++ struct super_block *sb = hash->dqh_sb; + int ret, err; + + /* Data block + inode block */ +@@ -2085,7 +2104,7 @@ static int reiserfs_write_info(struct su + ret = journal_begin(&th, sb, 2); + if (ret) + goto out; +- ret = dquot_commit_info(sb, type); ++ ret = dquot_commit_info(hash, type); + err = journal_end(&th, sb, 2); + if (!ret && err) + ret = err; +@@ -2097,18 +2116,21 @@ static int reiserfs_write_info(struct su + /* + * Turn on quotas during mount time - we need to find the quota file and such... + */ +-static int reiserfs_quota_on_mount(struct super_block *sb, int type) ++static int reiserfs_quota_on_mount(struct dqhash *hash, int type) + { +- return vfs_quota_on_mount(sb, REISERFS_SB(sb)->s_qf_names[type], ++ struct super_block *sb = hash->dqh_sb; ++ ++ return vfs_quota_on_mount(hash, REISERFS_SB(sb)->s_qf_names[type], + REISERFS_SB(sb)->s_jquota_fmt, type); + } + + /* + * Standard function to be called on quota_on + */ +-static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, ++static int reiserfs_quota_on(struct dqhash *hash, int type, int format_id, + char *path) + { ++ struct super_block *sb = hash->dqh_sb; + int err; + struct nameidata nd; + +@@ -2133,7 +2155,7 @@ static int reiserfs_quota_on(struct supe + if (!REISERFS_SB(sb)->s_qf_names[USRQUOTA] && + !REISERFS_SB(sb)->s_qf_names[GRPQUOTA]) { + path_release(&nd); +- return vfs_quota_on(sb, type, format_id, path); ++ return vfs_quota_on(hash, type, format_id, path); + } + /* Quotafile not of fs root? */ + if (nd.dentry->d_parent->d_inode != sb->s_root->d_inode) +@@ -2141,17 +2163,18 @@ static int reiserfs_quota_on(struct supe + "reiserfs: Quota file not on filesystem root. " + "Journalled quota will not work."); + path_release(&nd); +- return vfs_quota_on(sb, type, format_id, path); ++ return vfs_quota_on(hash, type, format_id, path); + } + + /* Read data from quotafile - avoid pagecache and such because we cannot afford + * acquiring the locks... As quota files are never truncated and quota code + * itself serializes the operations (and noone else should touch the files) + * we don't have to be afraid of races */ +-static ssize_t reiserfs_quota_read(struct super_block *sb, int type, char *data, ++static ssize_t reiserfs_quota_read(struct dqhash *hash, int type, char *data, + size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + unsigned long blk = off >> sb->s_blocksize_bits; + int err = 0, offset = off & (sb->s_blocksize - 1), tocopy; + size_t toread; +@@ -2193,10 +2216,11 @@ static ssize_t reiserfs_quota_read(struc + + /* Write to quotafile (we know the transaction is already started and has + * enough credits) */ +-static ssize_t reiserfs_quota_write(struct super_block *sb, int type, ++static ssize_t reiserfs_quota_write(struct dqhash *hash, int type, + const char *data, size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + unsigned long blk = off >> sb->s_blocksize_bits; + int err = 0, offset = off & (sb->s_blocksize - 1), tocopy; + int journal_quota = REISERFS_SB(sb)->s_qf_names[type] != NULL; +Index: linux-2.6.16/fs/reiserfs/xattr.c +=================================================================== +--- linux-2.6.16.orig/fs/reiserfs/xattr.c ++++ linux-2.6.16/fs/reiserfs/xattr.c +@@ -35,6 +35,7 @@ + #include <linux/namei.h> + #include <linux/errno.h> + #include <linux/fs.h> ++#include <linux/mount.h> + #include <linux/file.h> + #include <linux/pagemap.h> + #include <linux/xattr.h> +@@ -824,7 +825,7 @@ int reiserfs_delete_xattrs(struct inode + if (dir->d_inode->i_nlink <= 2) { + root = get_xa_root(inode->i_sb); + reiserfs_write_lock_xattrs(inode->i_sb); +- err = vfs_rmdir(root->d_inode, dir); ++ err = vfs_rmdir(root->d_inode, dir, NULL); + reiserfs_write_unlock_xattrs(inode->i_sb); + dput(root); + } else { +Index: linux-2.6.16/fs/stat.c +=================================================================== +--- linux-2.6.16.orig/fs/stat.c ++++ linux-2.6.16/fs/stat.c +@@ -27,6 +27,7 @@ void generic_fillattr(struct inode *inod + stat->nlink = inode->i_nlink; + stat->uid = inode->i_uid; + stat->gid = inode->i_gid; ++ stat->tag = inode->i_tag; + stat->rdev = inode->i_rdev; + stat->atime = inode->i_atime; + stat->mtime = inode->i_mtime; +Index: linux-2.6.16/fs/super.c +=================================================================== +--- linux-2.6.16.orig/fs/super.c ++++ linux-2.6.16/fs/super.c +@@ -37,6 +37,8 @@ + #include <linux/writeback.h> /* for the emergency remount stuff */ + #include <linux/idr.h> + #include <linux/kobject.h> ++#include <linux/devpts_fs.h> ++#include <linux/proc_fs.h> + #include <asm/uaccess.h> + + +@@ -77,15 +79,14 @@ static struct super_block *alloc_super(v + s->s_count = S_BIAS; + atomic_set(&s->s_active, 1); + sema_init(&s->s_vfs_rename_sem,1); +- sema_init(&s->s_dquot.dqio_sem, 1); +- sema_init(&s->s_dquot.dqonoff_sem, 1); +- init_rwsem(&s->s_dquot.dqptr_sem); + init_waitqueue_head(&s->s_wait_unfrozen); + s->s_maxbytes = MAX_NON_LFS; +- s->dq_op = sb_dquot_ops; ++ s->s_qop = sb_dquot_ops; + s->s_qcop = sb_quotactl_ops; + s->s_op = &default_op; + s->s_time_gran = 1000000000; ++ /* quick hack to make dqhash id unique, sufficient for now */ ++ s->s_dqh = new_dqhash(s, (unsigned long)s); + } + out: + return s; +@@ -100,6 +101,7 @@ out: + static inline void destroy_super(struct super_block *s) + { + security_sb_free(s); ++ dqhput(s->s_dqh); + kfree(s); + } + +@@ -171,7 +173,7 @@ void deactivate_super(struct super_block + if (atomic_dec_and_lock(&s->s_active, &sb_lock)) { + s->s_count -= S_BIAS-1; + spin_unlock(&sb_lock); +- DQUOT_OFF(s); ++ DQUOT_OFF(s->s_dqh); + down_write(&s->s_umount); + fs->kill_sb(s); + put_filesystem(fs); +@@ -803,7 +805,7 @@ struct vfsmount * + do_kern_mount(const char *fstype, int flags, const char *name, void *data) + { + struct file_system_type *type = get_fs_type(fstype); +- struct super_block *sb = ERR_PTR(-ENOMEM); ++ struct super_block *sb; + struct vfsmount *mnt; + int error; + char *secdata = NULL; +@@ -811,6 +813,12 @@ do_kern_mount(const char *fstype, int fl + if (!type) + return ERR_PTR(-ENODEV); + ++ sb = ERR_PTR(-EPERM); ++ if ((type->fs_flags & FS_BINARY_MOUNTDATA) && ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_BINARY_MOUNT)) ++ goto out; ++ ++ sb = ERR_PTR(-ENOMEM); + mnt = alloc_vfsmnt(name); + if (!mnt) + goto out; +@@ -832,6 +840,13 @@ do_kern_mount(const char *fstype, int fl + sb = type->get_sb(type, flags, name, data); + if (IS_ERR(sb)) + goto out_free_secdata; ++ ++ error = -EPERM; ++ if (!capable(CAP_SYS_ADMIN) && !sb->s_bdev && ++ (sb->s_magic != PROC_SUPER_MAGIC) && ++ (sb->s_magic != DEVPTS_SUPER_MAGIC)) ++ goto out_sb; ++ + error = security_sb_kern_mount(sb, secdata); + if (error) + goto out_sb; +Index: linux-2.6.16/fs/sysfs/mount.c +=================================================================== +--- linux-2.6.16.orig/fs/sysfs/mount.c ++++ linux-2.6.16/fs/sysfs/mount.c +@@ -11,8 +11,6 @@ + + #include "sysfs.h" + +-/* Random magic number */ +-#define SYSFS_MAGIC 0x62656572 + + struct vfsmount *sysfs_mount; + struct super_block * sysfs_sb = NULL; +@@ -38,7 +36,7 @@ static int sysfs_fill_super(struct super + + sb->s_blocksize = PAGE_CACHE_SIZE; + sb->s_blocksize_bits = PAGE_CACHE_SHIFT; +- sb->s_magic = SYSFS_MAGIC; ++ sb->s_magic = SYSFS_SUPER_MAGIC; + sb->s_op = &sysfs_ops; + sb->s_time_gran = 1; + sysfs_sb = sb; +Index: linux-2.6.16/fs/udf/super.c +=================================================================== +--- linux-2.6.16.orig/fs/udf/super.c ++++ linux-2.6.16/fs/udf/super.c +@@ -1575,7 +1575,7 @@ static int udf_fill_super(struct super_b + + /* Fill in the rest of the superblock */ + sb->s_op = &udf_sb_ops; +- sb->dq_op = NULL; ++ sb->s_qop = NULL; + sb->s_dirt = 0; + sb->s_magic = UDF_SUPER_MAGIC; + sb->s_time_gran = 1000; +Index: linux-2.6.16/fs/ufs/super.c +=================================================================== +--- linux-2.6.16.orig/fs/ufs/super.c ++++ linux-2.6.16/fs/ufs/super.c +@@ -873,7 +873,7 @@ magic_found: + * Read ufs_super_block into internal data structures + */ + sb->s_op = &ufs_super_ops; +- sb->dq_op = NULL; /***/ ++ sb->s_qop = NULL; /***/ + sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic); + + uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno); +@@ -1198,8 +1198,8 @@ static void destroy_inodecache(void) + } + + #ifdef CONFIG_QUOTA +-static ssize_t ufs_quota_read(struct super_block *, int, char *,size_t, loff_t); +-static ssize_t ufs_quota_write(struct super_block *, int, const char *, size_t, loff_t); ++static ssize_t ufs_quota_read(struct dqhash *, int, char *,size_t, loff_t); ++static ssize_t ufs_quota_write(struct dqhash *, int, const char *, size_t, loff_t); + #endif + + static struct super_operations ufs_super_ops = { +@@ -1224,10 +1224,11 @@ static struct super_operations ufs_super + * acquiring the locks... As quota files are never truncated and quota code + * itself serializes the operations (and noone else should touch the files) + * we don't have to be afraid of races */ +-static ssize_t ufs_quota_read(struct super_block *sb, int type, char *data, ++static ssize_t ufs_quota_read(struct dqhash *hash, int type, char *data, + size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + sector_t blk = off >> sb->s_blocksize_bits; + int err = 0; + int offset = off & (sb->s_blocksize - 1); +@@ -1263,10 +1264,11 @@ static ssize_t ufs_quota_read(struct sup + } + + /* Write to quotafile */ +-static ssize_t ufs_quota_write(struct super_block *sb, int type, ++static ssize_t ufs_quota_write(struct dqhash *hash, int type, + const char *data, size_t len, loff_t off) + { +- struct inode *inode = sb_dqopt(sb)->files[type]; ++ struct inode *inode = dqh_dqopt(hash)->files[type]; ++ struct super_block *sb = hash->dqh_sb; + sector_t blk = off >> sb->s_blocksize_bits; + int err = 0; + int offset = off & (sb->s_blocksize - 1); +Index: linux-2.6.16/fs/xattr.c +=================================================================== +--- linux-2.6.16.orig/fs/xattr.c ++++ linux-2.6.16/fs/xattr.c +@@ -17,6 +17,7 @@ + #include <linux/syscalls.h> + #include <linux/module.h> + #include <linux/fsnotify.h> ++#include <linux/mount.h> + #include <asm/uaccess.h> + + +@@ -167,7 +168,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr); + */ + static long + setxattr(struct dentry *d, char __user *name, void __user *value, +- size_t size, int flags) ++ size_t size, int flags, struct vfsmount *mnt) + { + int error; + void *kvalue = NULL; +@@ -194,6 +195,9 @@ setxattr(struct dentry *d, char __user * + } + } + ++ if (MNT_IS_RDONLY(mnt)) ++ return -EROFS; ++ + error = vfs_setxattr(d, kname, kvalue, size, flags); + kfree(kvalue); + return error; +@@ -209,7 +213,7 @@ sys_setxattr(char __user *path, char __u + error = user_path_walk(path, &nd); + if (error) + return error; +- error = setxattr(nd.dentry, name, value, size, flags); ++ error = setxattr(nd.dentry, name, value, size, flags, nd.mnt); + path_release(&nd); + return error; + } +@@ -224,7 +228,7 @@ sys_lsetxattr(char __user *path, char __ + error = user_path_walk_link(path, &nd); + if (error) + return error; +- error = setxattr(nd.dentry, name, value, size, flags); ++ error = setxattr(nd.dentry, name, value, size, flags, nd.mnt); + path_release(&nd); + return error; + } +@@ -239,7 +243,7 @@ sys_fsetxattr(int fd, char __user *name, + f = fget(fd); + if (!f) + return error; +- error = setxattr(f->f_dentry, name, value, size, flags); ++ error = setxattr(f->f_dentry, name, value, size, flags, f->f_vfsmnt); + fput(f); + return error; + } +@@ -412,7 +416,7 @@ sys_flistxattr(int fd, char __user *list + * Extended attribute REMOVE operations + */ + static long +-removexattr(struct dentry *d, char __user *name) ++removexattr(struct dentry *d, char __user *name, struct vfsmount *mnt) + { + int error; + char kname[XATTR_NAME_MAX + 1]; +@@ -423,6 +427,9 @@ removexattr(struct dentry *d, char __use + if (error < 0) + return error; + ++ if (MNT_IS_RDONLY(mnt)) ++ return -EROFS; ++ + return vfs_removexattr(d, kname); + } + +@@ -435,7 +442,7 @@ sys_removexattr(char __user *path, char + error = user_path_walk(path, &nd); + if (error) + return error; +- error = removexattr(nd.dentry, name); ++ error = removexattr(nd.dentry, name, nd.mnt); + path_release(&nd); + return error; + } +@@ -449,7 +456,7 @@ sys_lremovexattr(char __user *path, char + error = user_path_walk_link(path, &nd); + if (error) + return error; +- error = removexattr(nd.dentry, name); ++ error = removexattr(nd.dentry, name, nd.mnt); + path_release(&nd); + return error; + } +@@ -463,7 +470,7 @@ sys_fremovexattr(int fd, char __user *na + f = fget(fd); + if (!f) + return error; +- error = removexattr(f->f_dentry, name); ++ error = removexattr(f->f_dentry, name, f->f_vfsmnt); + fput(f); + return error; + } +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_file.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_file.c ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_file.c +@@ -536,6 +536,7 @@ struct file_operations linvfs_file_opera + .aio_read = linvfs_aio_read, + .aio_write = linvfs_aio_write, + .sendfile = linvfs_sendfile, ++ .sendpage = generic_file_sendpage, + .unlocked_ioctl = linvfs_ioctl, + #ifdef CONFIG_COMPAT + .compat_ioctl = linvfs_compat_ioctl, +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_ioctl.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_ioctl.c ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_ioctl.c +@@ -1100,6 +1100,8 @@ xfs_ioc_fsgeometry( + #define LINUX_XFLAG_APPEND 0x00000020 /* writes to file may only append */ + #define LINUX_XFLAG_NODUMP 0x00000040 /* do not dump file */ + #define LINUX_XFLAG_NOATIME 0x00000080 /* do not update atime */ ++#define LINUX_XFLAG_BARRIER 0x04000000 /* chroot() barrier */ ++#define LINUX_XFLAG_IUNLINK 0x08000000 /* immutable unlink */ + + STATIC unsigned int + xfs_merge_ioc_xflags( +@@ -1140,6 +1142,10 @@ xfs_di2lxflags( + + if (di_flags & XFS_DIFLAG_IMMUTABLE) + flags |= LINUX_XFLAG_IMMUTABLE; ++ if (di_flags & XFS_DIFLAG_IUNLINK) ++ flags |= LINUX_XFLAG_IUNLINK; ++ if (di_flags & XFS_DIFLAG_BARRIER) ++ flags |= LINUX_XFLAG_BARRIER; + if (di_flags & XFS_DIFLAG_APPEND) + flags |= LINUX_XFLAG_APPEND; + if (di_flags & XFS_DIFLAG_SYNC) +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_iops.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_iops.c ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_iops.c +@@ -55,6 +55,7 @@ + #include <linux/xattr.h> + #include <linux/namei.h> + #include <linux/security.h> ++#include <linux/vserver/tag.h> + + /* + * Get a XFS inode from a given vnode. +@@ -410,6 +411,7 @@ linvfs_lookup( + d_add(dentry, NULL); + return NULL; + } ++ dx_propagate_tag(nd, LINVFS_GET_IP(cvp)); + + return d_splice_alias(LINVFS_GET_IP(cvp), dentry); + } +@@ -646,6 +648,41 @@ linvfs_getattr( + } + + STATIC int ++linvfs_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ vattr_t vattr; ++ int flags = 0; ++ int error; ++ vnode_t *vp = LINVFS_GET_VP(inode); ++ ++ memset(&vattr, 0, sizeof(vattr_t)); ++ ++ vattr.va_mask = XFS_AT_XFLAGS; ++ VOP_GETATTR(vp, &vattr, 0, NULL, error); ++ if (error) ++ return error; ++ oldflags = vattr.va_xflags; ++ newflags = oldflags & ~(XFS_XFLAG_IMMUTABLE | ++ XFS_XFLAG_IUNLINK | XFS_XFLAG_BARRIER); ++ ++ if (IS_IMMUTABLE(inode)) ++ newflags |= XFS_XFLAG_IMMUTABLE; ++ if (IS_IUNLINK(inode)) ++ newflags |= XFS_XFLAG_IUNLINK; ++ if (IS_BARRIER(inode)) ++ newflags |= XFS_XFLAG_BARRIER; ++ ++ if (oldflags ^ newflags) { ++ vattr.va_xflags = newflags; ++ vattr.va_mask |= XFS_AT_XFLAGS; ++ VOP_SETATTR(vp, &vattr, flags, NULL, error); ++ } ++ vn_revalidate(vp); ++ return error; ++} ++ ++STATIC int + linvfs_setattr( + struct dentry *dentry, + struct iattr *attr) +@@ -657,6 +694,10 @@ linvfs_setattr( + int flags = 0; + int error; + ++ error = inode_change_ok(inode, attr); ++ if (error) ++ return error; ++ + memset(&vattr, 0, sizeof(vattr_t)); + if (ia_valid & ATTR_UID) { + vattr.va_mask |= XFS_AT_UID; +@@ -666,6 +707,10 @@ linvfs_setattr( + vattr.va_mask |= XFS_AT_GID; + vattr.va_gid = attr->ia_gid; + } ++ if ((ia_valid & ATTR_TAG) && IS_TAGGED(inode)) { ++ vattr.va_mask |= XFS_AT_TAG; ++ vattr.va_tag = attr->ia_tag; ++ } + if (ia_valid & ATTR_SIZE) { + vattr.va_mask |= XFS_AT_SIZE; + vattr.va_size = attr->ia_size; +@@ -825,6 +870,7 @@ struct inode_operations linvfs_file_inod + .getxattr = linvfs_getxattr, + .listxattr = linvfs_listxattr, + .removexattr = linvfs_removexattr, ++ .sync_flags = linvfs_sync_flags, + }; + + struct inode_operations linvfs_dir_inode_operations = { +@@ -844,6 +890,7 @@ struct inode_operations linvfs_dir_inode + .getxattr = linvfs_getxattr, + .listxattr = linvfs_listxattr, + .removexattr = linvfs_removexattr, ++ .sync_flags = linvfs_sync_flags, + }; + + struct inode_operations linvfs_symlink_inode_operations = { +@@ -857,4 +904,5 @@ struct inode_operations linvfs_symlink_i + .getxattr = linvfs_getxattr, + .listxattr = linvfs_listxattr, + .removexattr = linvfs_removexattr, ++ .sync_flags = linvfs_sync_flags, + }; +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_linux.h +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_linux.h ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_linux.h +@@ -133,6 +133,7 @@ BUFFER_FNS(PrivateStart, unwritten); + #define current_pid() (current->pid) + #define current_fsuid(cred) (current->fsuid) + #define current_fsgid(cred) (current->fsgid) ++#define current_fstag(cred,vp) (dx_current_fstag(LINVFS_GET_IP(vp)->i_sb)) + + #define NBPP PAGE_SIZE + #define DPPSHFT (PAGE_SHIFT - 9) +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_super.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_super.c ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_super.c +@@ -161,6 +161,7 @@ xfs_revalidate_inode( + inode->i_nlink = ip->i_d.di_nlink; + inode->i_uid = ip->i_d.di_uid; + inode->i_gid = ip->i_d.di_gid; ++ inode->i_tag = ip->i_d.di_tag; + + switch (inode->i_mode & S_IFMT) { + case S_IFBLK: +@@ -189,6 +190,14 @@ xfs_revalidate_inode( + inode->i_flags |= S_IMMUTABLE; + else + inode->i_flags &= ~S_IMMUTABLE; ++ if (ip->i_d.di_flags & XFS_DIFLAG_IUNLINK) ++ inode->i_flags |= S_IUNLINK; ++ else ++ inode->i_flags &= ~S_IUNLINK; ++ if (ip->i_d.di_flags & XFS_DIFLAG_BARRIER) ++ inode->i_flags |= S_BARRIER; ++ else ++ inode->i_flags &= ~S_BARRIER; + if (ip->i_d.di_flags & XFS_DIFLAG_APPEND) + inode->i_flags |= S_APPEND; + else +@@ -729,6 +738,12 @@ linvfs_remount( + int error; + + VFS_PARSEARGS(vfsp, options, args, 1, error); ++ if ((args->flags2 & XFSMNT2_TAGGED) && ++ !(sb->s_flags & MS_TAGGED)) { ++ printk("XFS: %s: tagging not permitted on remount.\n", ++ sb->s_id); ++ error = EINVAL; ++ } + if (!error) + VFS_MNTUPDATE(vfsp, flags, args, error); + kmem_free(args, sizeof(*args)); +@@ -756,9 +771,10 @@ linvfs_show_options( + + STATIC int + linvfs_quotasync( +- struct super_block *sb, ++ struct dqhash *hash, + int type) + { ++ struct super_block *sb = hash->dqh_sb; + struct vfs *vfsp = LINVFS_GET_VFS(sb); + int error; + +@@ -768,10 +784,10 @@ linvfs_quotasync( + + STATIC int + linvfs_getxstate( +- struct super_block *sb, ++ struct dqhash *hash, + struct fs_quota_stat *fqs) + { +- struct vfs *vfsp = LINVFS_GET_VFS(sb); ++ struct vfs *vfsp = LINVFS_GET_VFS(hash->dqh_sb); + int error; + + VFS_QUOTACTL(vfsp, Q_XGETQSTAT, 0, (caddr_t)fqs, error); +@@ -780,11 +796,11 @@ linvfs_getxstate( + + STATIC int + linvfs_setxstate( +- struct super_block *sb, ++ struct dqhash *hash, + unsigned int flags, + int op) + { +- struct vfs *vfsp = LINVFS_GET_VFS(sb); ++ struct vfs *vfsp = LINVFS_GET_VFS(hash->dqh_sb); + int error; + + VFS_QUOTACTL(vfsp, op, 0, (caddr_t)&flags, error); +@@ -793,12 +809,12 @@ linvfs_setxstate( + + STATIC int + linvfs_getxquota( +- struct super_block *sb, ++ struct dqhash *hash, + int type, + qid_t id, + struct fs_disk_quota *fdq) + { +- struct vfs *vfsp = LINVFS_GET_VFS(sb); ++ struct vfs *vfsp = LINVFS_GET_VFS(hash->dqh_sb); + int error, getmode; + + getmode = (type == USRQUOTA) ? Q_XGETQUOTA : +@@ -809,12 +825,12 @@ linvfs_getxquota( + + STATIC int + linvfs_setxquota( +- struct super_block *sb, ++ struct dqhash *hash, + int type, + qid_t id, + struct fs_disk_quota *fdq) + { +- struct vfs *vfsp = LINVFS_GET_VFS(sb); ++ struct vfs *vfsp = LINVFS_GET_VFS(hash->dqh_sb); + int error, setmode; + + setmode = (type == USRQUOTA) ? Q_XSETQLIM : +@@ -852,6 +868,9 @@ linvfs_fill_super( + sb->s_export_op = &linvfs_export_ops; + #endif + sb->s_qcop = &linvfs_qops; ++#ifdef CONFIG_QUOTA ++ sb->s_dqh->dqh_qcop = &linvfs_qops; ++#endif + sb->s_op = &linvfs_sops; + + VFS_MOUNT(vfsp, args, NULL, error); +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_sysctl.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_sysctl.c ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_sysctl.c +@@ -58,74 +58,74 @@ xfs_stats_clear_proc_handler( + STATIC ctl_table xfs_table[] = { + {XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max}, + + {XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max}, + + {XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max}, + + {XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.panic_mask.min, &xfs_params.panic_mask.max}, + + {XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.error_level.min, &xfs_params.error_level.max}, + + {XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max}, + + {XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max}, + + {XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max}, + + {XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max}, + + {XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max}, + + {XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max}, + + {XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max}, + + {XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.rotorstep.min, &xfs_params.rotorstep.max}, + + /* please keep this the last entry */ + #ifdef CONFIG_PROC_FS + {XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val, + sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.stats_clear.min, &xfs_params.stats_clear.max}, + #endif /* CONFIG_PROC_FS */ + +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_vnode.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_vnode.c ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_vnode.c +@@ -103,6 +103,7 @@ vn_revalidate_core( + inode->i_nlink = vap->va_nlink; + inode->i_uid = vap->va_uid; + inode->i_gid = vap->va_gid; ++ inode->i_tag = vap->va_tag; + inode->i_blocks = vap->va_nblocks; + inode->i_mtime = vap->va_mtime; + inode->i_ctime = vap->va_ctime; +@@ -111,6 +112,14 @@ vn_revalidate_core( + inode->i_flags |= S_IMMUTABLE; + else + inode->i_flags &= ~S_IMMUTABLE; ++ if (vap->va_xflags & XFS_XFLAG_IUNLINK) ++ inode->i_flags |= S_IUNLINK; ++ else ++ inode->i_flags &= ~S_IUNLINK; ++ if (vap->va_xflags & XFS_XFLAG_BARRIER) ++ inode->i_flags |= S_BARRIER; ++ else ++ inode->i_flags &= ~S_BARRIER; + if (vap->va_xflags & XFS_XFLAG_APPEND) + inode->i_flags |= S_APPEND; + else +Index: linux-2.6.16/fs/xfs/linux-2.6/xfs_vnode.h +=================================================================== +--- linux-2.6.16.orig/fs/xfs/linux-2.6/xfs_vnode.h ++++ linux-2.6.16/fs/xfs/linux-2.6/xfs_vnode.h +@@ -386,6 +386,7 @@ typedef struct vattr { + xfs_nlink_t va_nlink; /* number of references to file */ + uid_t va_uid; /* owner user id */ + gid_t va_gid; /* owner group id */ ++ tag_t va_tag; /* owner group id */ + xfs_ino_t va_nodeid; /* file id */ + xfs_off_t va_size; /* file size in bytes */ + u_long va_blocksize; /* blocksize preferred for i/o */ +@@ -434,13 +435,15 @@ typedef struct vattr { + #define XFS_AT_PROJID 0x04000000 + #define XFS_AT_SIZE_NOPERM 0x08000000 + #define XFS_AT_GENCOUNT 0x10000000 ++#define XFS_AT_TAG 0x20000000 + + #define XFS_AT_ALL (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\ + XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\ + XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\ + XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\ + XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\ +- XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT) ++ XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT\ ++ XFS_AT_TAG) + + #define XFS_AT_STAT (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\ + XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\ +Index: linux-2.6.16/fs/xfs/quota/xfs_qm_syscalls.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/quota/xfs_qm_syscalls.c ++++ linux-2.6.16/fs/xfs/quota/xfs_qm_syscalls.c +@@ -215,7 +215,7 @@ xfs_qm_scall_quotaoff( + xfs_qoff_logitem_t *qoffstart; + int nculprits; + +- if (!force && !capable(CAP_SYS_ADMIN)) ++ if (!force && !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return XFS_ERROR(EPERM); + /* + * No file system can have quotas enabled on disk but not in core. +@@ -384,7 +384,7 @@ xfs_qm_scall_trunc_qfiles( + int error; + xfs_inode_t *qip; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return XFS_ERROR(EPERM); + error = 0; + if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0) { +@@ -429,7 +429,7 @@ xfs_qm_scall_quotaon( + uint accflags; + __int64_t sbflags; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return XFS_ERROR(EPERM); + + flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); +@@ -600,7 +600,7 @@ xfs_qm_scall_setqlim( + int error; + xfs_qcnt_t hard, soft; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return XFS_ERROR(EPERM); + + if ((newlim->d_fieldmask & +Index: linux-2.6.16/fs/xfs/xfs_clnt.h +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_clnt.h ++++ linux-2.6.16/fs/xfs/xfs_clnt.h +@@ -100,5 +100,7 @@ struct xfs_mount_args { + */ + #define XFSMNT2_COMPAT_IOSIZE 0x00000001 /* don't report large preferred + * I/O size in stat(2) */ ++#define XFSMNT2_TAGGED 0x80000000 /* context tagging */ ++ + + #endif /* __XFS_CLNT_H__ */ +Index: linux-2.6.16/fs/xfs/xfs_dinode.h +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_dinode.h ++++ linux-2.6.16/fs/xfs/xfs_dinode.h +@@ -53,7 +53,8 @@ typedef struct xfs_dinode_core + __uint32_t di_gid; /* owner's group id */ + __uint32_t di_nlink; /* number of links to file */ + __uint16_t di_projid; /* owner's project id */ +- __uint8_t di_pad[8]; /* unused, zeroed space */ ++ __uint16_t di_tag; /* context tagging */ ++ __uint8_t di_pad[6]; /* unused, zeroed space */ + __uint16_t di_flushiter; /* incremented on flush */ + xfs_timestamp_t di_atime; /* time last accessed */ + xfs_timestamp_t di_mtime; /* time last modified */ +@@ -257,6 +258,9 @@ typedef enum xfs_dinode_fmt + #define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */ + #define XFS_DIFLAG_EXTSIZE_BIT 11 /* inode extent size allocator hint */ + #define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */ ++#define XFS_DIFLAG_BARRIER_BIT 13 /* chroot() barrier */ ++#define XFS_DIFLAG_IUNLINK_BIT 14 /* immutable unlink */ ++ + #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT) + #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT) + #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT) +@@ -270,12 +274,14 @@ typedef enum xfs_dinode_fmt + #define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT) + #define XFS_DIFLAG_EXTSIZE (1 << XFS_DIFLAG_EXTSIZE_BIT) + #define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT) ++#define XFS_DIFLAG_BARRIER (1 << XFS_DIFLAG_BARRIER_BIT) ++#define XFS_DIFLAG_IUNLINK (1 << XFS_DIFLAG_IUNLINK_BIT) + + #define XFS_DIFLAG_ANY \ + (XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \ + XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \ + XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \ + XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \ +- XFS_DIFLAG_EXTSZINHERIT) ++ XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_BARRIER | XFS_DIFLAG_IUNLINK) + + #endif /* __XFS_DINODE_H__ */ +Index: linux-2.6.16/fs/xfs/xfs_fs.h +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_fs.h ++++ linux-2.6.16/fs/xfs/xfs_fs.h +@@ -67,6 +67,8 @@ struct fsxattr { + #define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */ + #define XFS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */ + #define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */ ++#define XFS_XFLAG_BARRIER 0x00004000 /* chroot() barrier */ ++#define XFS_XFLAG_IUNLINK 0x00008000 /* immutable unlink */ + #define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */ + + /* +@@ -295,7 +297,8 @@ typedef struct xfs_bstat { + __s32 bs_extents; /* number of extents */ + __u32 bs_gen; /* generation count */ + __u16 bs_projid; /* project id */ +- unsigned char bs_pad[14]; /* pad space, unused */ ++ __u16 bs_tag; /* context tagging */ ++ unsigned char bs_pad[12]; /* pad space, unused */ + __u32 bs_dmevmask; /* DMIG event mask */ + __u16 bs_dmstate; /* DMIG state info */ + __u16 bs_aextents; /* attribute number of extents */ +Index: linux-2.6.16/fs/xfs/xfs_inode.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_inode.c ++++ linux-2.6.16/fs/xfs/xfs_inode.c +@@ -52,6 +52,7 @@ + #include "xfs_mac.h" + #include "xfs_acl.h" + ++#include <linux/vs_tag.h> + + kmem_zone_t *xfs_ifork_zone; + kmem_zone_t *xfs_inode_zone; +@@ -734,20 +735,35 @@ xfs_xlate_dinode_core( + xfs_dinode_core_t *buf_core = (xfs_dinode_core_t *)buf; + xfs_dinode_core_t *mem_core = (xfs_dinode_core_t *)dip; + xfs_arch_t arch = ARCH_CONVERT; ++ uint32_t uid = 0, gid = 0; ++ uint16_t tag = 0; + + ASSERT(dir); + ++ if (dir < 0) { ++ tag = mem_core->di_tag; ++ /* FIXME: supposed to use superblock flag */ ++ uid = TAGINO_UID(1, mem_core->di_uid, tag); ++ gid = TAGINO_GID(1, mem_core->di_gid, tag); ++ tag = TAGINO_TAG(1, tag); ++ } ++ + INT_XLATE(buf_core->di_magic, mem_core->di_magic, dir, arch); + INT_XLATE(buf_core->di_mode, mem_core->di_mode, dir, arch); + INT_XLATE(buf_core->di_version, mem_core->di_version, dir, arch); + INT_XLATE(buf_core->di_format, mem_core->di_format, dir, arch); + INT_XLATE(buf_core->di_onlink, mem_core->di_onlink, dir, arch); +- INT_XLATE(buf_core->di_uid, mem_core->di_uid, dir, arch); +- INT_XLATE(buf_core->di_gid, mem_core->di_gid, dir, arch); ++ INT_XLATE(buf_core->di_uid, uid, dir, arch); ++ INT_XLATE(buf_core->di_gid, gid, dir, arch); ++ INT_XLATE(buf_core->di_tag, tag, dir, arch); + INT_XLATE(buf_core->di_nlink, mem_core->di_nlink, dir, arch); + INT_XLATE(buf_core->di_projid, mem_core->di_projid, dir, arch); + + if (dir > 0) { ++ /* FIXME: supposed to use superblock flag */ ++ mem_core->di_uid = INOTAG_UID(1, uid, gid); ++ mem_core->di_gid = INOTAG_GID(1, uid, gid); ++ mem_core->di_tag = INOTAG_TAG(1, uid, gid, tag); + memcpy(mem_core->di_pad, buf_core->di_pad, + sizeof(buf_core->di_pad)); + } else { +@@ -796,6 +812,10 @@ _xfs_dic2xflags( + flags |= XFS_XFLAG_PREALLOC; + if (di_flags & XFS_DIFLAG_IMMUTABLE) + flags |= XFS_XFLAG_IMMUTABLE; ++ if (di_flags & XFS_DIFLAG_IUNLINK) ++ flags |= XFS_XFLAG_IUNLINK; ++ if (di_flags & XFS_DIFLAG_BARRIER) ++ flags |= XFS_XFLAG_BARRIER; + if (di_flags & XFS_DIFLAG_APPEND) + flags |= XFS_XFLAG_APPEND; + if (di_flags & XFS_DIFLAG_SYNC) +@@ -1125,6 +1145,7 @@ xfs_ialloc( + ASSERT(ip->i_d.di_nlink == nlink); + ip->i_d.di_uid = current_fsuid(cr); + ip->i_d.di_gid = current_fsgid(cr); ++ ip->i_d.di_tag = current_fstag(cr, vp); + ip->i_d.di_projid = prid; + memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); + +Index: linux-2.6.16/fs/xfs/xfs_itable.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_itable.c ++++ linux-2.6.16/fs/xfs/xfs_itable.c +@@ -85,6 +85,7 @@ xfs_bulkstat_one_iget( + buf->bs_mode = dic->di_mode; + buf->bs_uid = dic->di_uid; + buf->bs_gid = dic->di_gid; ++ buf->bs_tag = dic->di_tag; + buf->bs_size = dic->di_size; + vn_atime_to_bstime(vp, &buf->bs_atime); + buf->bs_mtime.tv_sec = dic->di_mtime.t_sec; +@@ -159,6 +160,7 @@ xfs_bulkstat_one_dinode( + buf->bs_mode = INT_GET(dic->di_mode, ARCH_CONVERT); + buf->bs_uid = INT_GET(dic->di_uid, ARCH_CONVERT); + buf->bs_gid = INT_GET(dic->di_gid, ARCH_CONVERT); ++ buf->bs_tag = INT_GET(dic->di_tag, ARCH_CONVERT); + buf->bs_size = INT_GET(dic->di_size, ARCH_CONVERT); + buf->bs_atime.tv_sec = INT_GET(dic->di_atime.t_sec, ARCH_CONVERT); + buf->bs_atime.tv_nsec = INT_GET(dic->di_atime.t_nsec, ARCH_CONVERT); +Index: linux-2.6.16/fs/xfs/xfs_mount.h +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_mount.h ++++ linux-2.6.16/fs/xfs/xfs_mount.h +@@ -412,6 +412,7 @@ typedef struct xfs_mount { + #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred + * I/O size in stat() */ + ++#define XFS_MOUNT_TAGGED (1ULL << 31) /* context tagging */ + + /* + * Default minimum read and write sizes. +Index: linux-2.6.16/fs/xfs/xfs_vfsops.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_vfsops.c ++++ linux-2.6.16/fs/xfs/xfs_vfsops.c +@@ -296,6 +296,8 @@ xfs_start_flags( + + if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) + mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; ++ if (ap->flags2 & XFSMNT2_TAGGED) ++ mp->m_flags |= XFS_MOUNT_TAGGED; + + /* + * no recovery flag requires a read-only mount +@@ -390,6 +392,8 @@ xfs_finish_flags( + return XFS_ERROR(EINVAL); + } + ++ if (ap->flags2 & XFSMNT2_TAGGED) ++ vfs->vfs_super->s_flags |= MS_TAGGED; + return 0; + } + +@@ -1653,6 +1657,9 @@ xfs_vget( + * in stat(). */ + #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ + #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ ++#define MNTOPT_TAGXID "tagxid" /* context tagging for inodes */ ++#define MNTOPT_TAGGED "tag" /* context tagging for inodes */ ++#define MNTOPT_NOTAGTAG "notag" /* do not use context tagging */ + + STATIC unsigned long + suffix_strtoul(const char *cp, char **endp, unsigned int base) +@@ -1829,6 +1836,19 @@ xfs_parseargs( + args->flags |= XFSMNT_ATTR2; + } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { + args->flags &= ~XFSMNT_ATTR2; ++#ifndef CONFIG_TAGGING_NONE ++ } else if (!strcmp(this_char, MNTOPT_TAGGED)) { ++ args->flags2 |= XFSMNT2_TAGGED; ++ } else if (!strcmp(this_char, MNTOPT_NOTAGTAG)) { ++ args->flags2 &= ~XFSMNT2_TAGGED; ++ } else if (!strcmp(this_char, MNTOPT_TAGXID)) { ++ args->flags2 |= XFSMNT2_TAGGED; ++#endif ++#ifdef CONFIG_PROPAGATE ++ } else if (!strcmp(this_char, MNTOPT_TAGGED)) { ++ /* use value */ ++ args->flags2 |= XFSMNT2_TAGGED; ++#endif + } else if (!strcmp(this_char, "osyncisdsync")) { + /* no-op, this is now the default */ + printk("XFS: osyncisdsync is now the default, option is deprecated.\n"); +Index: linux-2.6.16/fs/xfs/xfs_vnodeops.c +=================================================================== +--- linux-2.6.16.orig/fs/xfs/xfs_vnodeops.c ++++ linux-2.6.16/fs/xfs/xfs_vnodeops.c +@@ -154,6 +154,7 @@ xfs_getattr( + vap->va_mode = ip->i_d.di_mode; + vap->va_uid = ip->i_d.di_uid; + vap->va_gid = ip->i_d.di_gid; ++ vap->va_tag = ip->i_d.di_tag; + vap->va_projid = ip->i_d.di_projid; + + /* +@@ -254,6 +255,7 @@ xfs_setattr( + uint commit_flags=0; + uid_t uid=0, iuid=0; + gid_t gid=0, igid=0; ++ tag_t tag=0, itag=0; + int timeflags = 0; + vnode_t *vp; + xfs_prid_t projid=0, iprojid=0; +@@ -310,6 +312,7 @@ xfs_setattr( + (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID))) { + uint qflags = 0; + ++ /* FIXME: handle tagging? */ + if ((mask & XFS_AT_UID) && XFS_IS_UQUOTA_ON(mp)) { + uid = vap->va_uid; + qflags |= XFS_QMOPT_UQUOTA; +@@ -390,6 +393,8 @@ xfs_setattr( + if (mask & + (XFS_AT_MODE|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_UID| + XFS_AT_GID|XFS_AT_PROJID)) { ++ /* FIXME: handle tagging? */ ++ + /* + * CAP_FOWNER overrides the following restrictions: + * +@@ -438,7 +443,7 @@ xfs_setattr( + * and can change the group id only to a group of which he + * or she is a member. + */ +- if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) { ++ if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_TAG|XFS_AT_PROJID)) { + /* + * These IDs could have changed since we last looked at them. + * But, we're assured that if the ownership did change +@@ -446,10 +451,12 @@ xfs_setattr( + * would have changed also. + */ + iuid = ip->i_d.di_uid; +- iprojid = ip->i_d.di_projid; + igid = ip->i_d.di_gid; +- gid = (mask & XFS_AT_GID) ? vap->va_gid : igid; ++ itag = ip->i_d.di_tag; ++ iprojid = ip->i_d.di_projid; + uid = (mask & XFS_AT_UID) ? vap->va_uid : iuid; ++ gid = (mask & XFS_AT_GID) ? vap->va_gid : igid; ++ tag = (mask & XFS_AT_TAG) ? vap->va_tag : itag; + projid = (mask & XFS_AT_PROJID) ? (xfs_prid_t)vap->va_projid : + iprojid; + +@@ -477,6 +484,7 @@ xfs_setattr( + if ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) || + (XFS_IS_PQUOTA_ON(mp) && iprojid != projid) || + (XFS_IS_GQUOTA_ON(mp) && igid != gid)) { ++ /* FIXME: handle tagging? */ + ASSERT(tp); + code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp, + capable(CAP_FOWNER) ? +@@ -693,7 +701,7 @@ xfs_setattr( + * and can change the group id only to a group of which he + * or she is a member. + */ +- if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) { ++ if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_TAG|XFS_AT_PROJID)) { + /* + * CAP_FSETID overrides the following restrictions: + * +@@ -709,6 +717,12 @@ xfs_setattr( + * Change the ownerships and register quota modifications + * in the transaction. + */ ++ if (itag != tag) { ++ if (XFS_IS_GQUOTA_ON(mp)) { ++ /* FIXME: handle tag quota? */ ++ } ++ ip->i_d.di_tag = tag; ++ } + if (iuid != uid) { + if (XFS_IS_UQUOTA_ON(mp)) { + ASSERT(mask & XFS_AT_UID); +@@ -789,6 +803,10 @@ xfs_setattr( + di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC); + if (vap->va_xflags & XFS_XFLAG_IMMUTABLE) + di_flags |= XFS_DIFLAG_IMMUTABLE; ++ if (vap->va_xflags & XFS_XFLAG_IUNLINK) ++ di_flags |= XFS_DIFLAG_IUNLINK; ++ if (vap->va_xflags & XFS_XFLAG_BARRIER) ++ di_flags |= XFS_DIFLAG_BARRIER; + if (vap->va_xflags & XFS_XFLAG_APPEND) + di_flags |= XFS_DIFLAG_APPEND; + if (vap->va_xflags & XFS_XFLAG_SYNC) +Index: linux-2.6.16/include/asm-arm/tlb.h +=================================================================== +--- linux-2.6.16.orig/include/asm-arm/tlb.h ++++ linux-2.6.16/include/asm-arm/tlb.h +@@ -20,6 +20,7 @@ + #include <asm/cacheflush.h> + #include <asm/tlbflush.h> + #include <asm/pgalloc.h> ++#include <linux/vs_memory.h> + + /* + * TLB handling. This allows us to remove pages from the page +Index: linux-2.6.16/include/asm-arm26/tlb.h +=================================================================== +--- linux-2.6.16.orig/include/asm-arm26/tlb.h ++++ linux-2.6.16/include/asm-arm26/tlb.h +@@ -3,6 +3,7 @@ + + #include <asm/pgalloc.h> + #include <asm/tlbflush.h> ++#include <linux/vs_memory.h> + + /* + * TLB handling. This allows us to remove pages from the page +Index: linux-2.6.16/include/asm-arm26/unistd.h +=================================================================== +--- linux-2.6.16.orig/include/asm-arm26/unistd.h ++++ linux-2.6.16/include/asm-arm26/unistd.h +@@ -304,6 +304,8 @@ + #define __NR_mq_getsetattr (__NR_SYSCALL_BASE+279) + #define __NR_waitid (__NR_SYSCALL_BASE+280) + ++#define __NR_vserver (__NR_SYSCALL_BASE+313) ++ + /* + * The following SWIs are ARM private. FIXME - make appropriate for arm26 + */ +Index: linux-2.6.16/include/asm-generic/tlb.h +=================================================================== +--- linux-2.6.16.orig/include/asm-generic/tlb.h ++++ linux-2.6.16/include/asm-generic/tlb.h +@@ -15,6 +15,7 @@ + + #include <linux/config.h> + #include <linux/swap.h> ++#include <linux/vs_memory.h> + #include <asm/pgalloc.h> + #include <asm/tlbflush.h> + +Index: linux-2.6.16/include/asm-i386/elf.h +=================================================================== +--- linux-2.6.16.orig/include/asm-i386/elf.h ++++ linux-2.6.16/include/asm-i386/elf.h +@@ -71,7 +71,7 @@ typedef struct user_fxsr_struct elf_fpxr + 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_UNMAPPED_BASE) * 2) + + /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is + now struct_user_regs, they are different) */ +Index: linux-2.6.16/include/asm-i386/page.h +=================================================================== +--- linux-2.6.16.orig/include/asm-i386/page.h ++++ linux-2.6.16/include/asm-i386/page.h +@@ -109,19 +109,15 @@ extern int page_is_ram(unsigned long pag + + #endif /* __ASSEMBLY__ */ + +-#ifdef __ASSEMBLY__ + #define __PAGE_OFFSET CONFIG_PAGE_OFFSET + #define __PHYSICAL_START CONFIG_PHYSICAL_START +-#else +-#define __PAGE_OFFSET ((unsigned long)CONFIG_PAGE_OFFSET) +-#define __PHYSICAL_START ((unsigned long)CONFIG_PHYSICAL_START) +-#endif + #define __KERNEL_START (__PAGE_OFFSET + __PHYSICAL_START) +- ++#define __MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) + + #define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) ++#define PHYSICAL_START ((unsigned long)__PHYSICAL_START) + #define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE) +-#define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) ++#define MAXMEM ((unsigned long)__MAXMEM) + #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) + #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) + #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) +Index: linux-2.6.16/include/asm-i386/processor.h +=================================================================== +--- linux-2.6.16.orig/include/asm-i386/processor.h ++++ linux-2.6.16/include/asm-i386/processor.h +@@ -316,9 +316,10 @@ extern unsigned int mca_pentium_flag; + extern int bootloader_type; + + /* +- * User space process size: 3GB (default). ++ * User space process size: (3GB default). + */ +-#define TASK_SIZE (PAGE_OFFSET) ++#define __TASK_SIZE (__PAGE_OFFSET) ++#define TASK_SIZE ((unsigned long)__TASK_SIZE) + + /* This decides where the kernel will search for a free chunk of vm + * space during mmap's. +Index: linux-2.6.16/include/asm-ia64/tlb.h +=================================================================== +--- linux-2.6.16.orig/include/asm-ia64/tlb.h ++++ linux-2.6.16/include/asm-ia64/tlb.h +@@ -41,6 +41,7 @@ + #include <linux/mm.h> + #include <linux/pagemap.h> + #include <linux/swap.h> ++#include <linux/vs_memory.h> + + #include <asm/pgalloc.h> + #include <asm/processor.h> +Index: linux-2.6.16/include/asm-powerpc/unistd.h +=================================================================== +--- linux-2.6.16.orig/include/asm-powerpc/unistd.h ++++ linux-2.6.16/include/asm-powerpc/unistd.h +@@ -275,7 +275,7 @@ + #endif + #define __NR_rtas 255 + #define __NR_sys_debug_setcontext 256 +-/* Number 257 is reserved for vserver */ ++#define __NR_vserver 257 + /* 258 currently unused */ + #define __NR_mbind 259 + #define __NR_get_mempolicy 260 +Index: linux-2.6.16/include/asm-s390/unistd.h +=================================================================== +--- linux-2.6.16.orig/include/asm-s390/unistd.h ++++ linux-2.6.16/include/asm-s390/unistd.h +@@ -255,7 +255,7 @@ + #define __NR_clock_gettime (__NR_timer_create+6) + #define __NR_clock_getres (__NR_timer_create+7) + #define __NR_clock_nanosleep (__NR_timer_create+8) +-/* Number 263 is reserved for vserver */ ++#define __NR_vserver 263 + #define __NR_fadvise64_64 264 + #define __NR_statfs64 265 + #define __NR_fstatfs64 266 +Index: linux-2.6.16/include/asm-sparc/unistd.h +=================================================================== +--- linux-2.6.16.orig/include/asm-sparc/unistd.h ++++ linux-2.6.16/include/asm-sparc/unistd.h +@@ -283,7 +283,7 @@ + #define __NR_timer_getoverrun 264 + #define __NR_timer_delete 265 + #define __NR_timer_create 266 +-/* #define __NR_vserver 267 Reserved for VSERVER */ ++#define __NR_vserver 267 + #define __NR_io_setup 268 + #define __NR_io_destroy 269 + #define __NR_io_submit 270 +Index: linux-2.6.16/include/asm-sparc64/tlb.h +=================================================================== +--- linux-2.6.16.orig/include/asm-sparc64/tlb.h ++++ linux-2.6.16/include/asm-sparc64/tlb.h +@@ -3,6 +3,7 @@ + + #include <linux/config.h> + #include <linux/swap.h> ++#include <linux/vs_memory.h> + #include <asm/pgalloc.h> + #include <asm/tlbflush.h> + #include <asm/mmu_context.h> +Index: linux-2.6.16/include/asm-sparc64/unistd.h +=================================================================== +--- linux-2.6.16.orig/include/asm-sparc64/unistd.h ++++ linux-2.6.16/include/asm-sparc64/unistd.h +@@ -285,7 +285,7 @@ + #define __NR_timer_getoverrun 264 + #define __NR_timer_delete 265 + #define __NR_timer_create 266 +-/* #define __NR_vserver 267 Reserved for VSERVER */ ++#define __NR_vserver 267 + #define __NR_io_setup 268 + #define __NR_io_destroy 269 + #define __NR_io_submit 270 +Index: linux-2.6.16/include/asm-x86_64/unistd.h +=================================================================== +--- linux-2.6.16.orig/include/asm-x86_64/unistd.h ++++ linux-2.6.16/include/asm-x86_64/unistd.h +@@ -532,7 +532,7 @@ __SYSCALL(__NR_tgkill, sys_tgkill) + #define __NR_utimes 235 + __SYSCALL(__NR_utimes, sys_utimes) + #define __NR_vserver 236 +-__SYSCALL(__NR_vserver, sys_ni_syscall) ++__SYSCALL(__NR_vserver, sys_vserver) + #define __NR_mbind 237 + __SYSCALL(__NR_mbind, sys_mbind) + #define __NR_set_mempolicy 238 +Index: linux-2.6.16/include/linux/capability.h +=================================================================== +--- linux-2.6.16.orig/include/linux/capability.h ++++ linux-2.6.16/include/linux/capability.h +@@ -235,6 +235,7 @@ typedef __u32 kernel_cap_t; + arbitrary SCSI commands */ + /* Allow setting encryption key on loopback filesystem */ + /* Allow setting zone reclaim policy */ ++/* Allow the selection of a security context */ + + #define CAP_SYS_ADMIN 21 + +@@ -288,6 +289,11 @@ typedef __u32 kernel_cap_t; + + #define CAP_AUDIT_CONTROL 30 + ++/* Allow context manipulations */ ++/* Allow changing context info on files */ ++ ++#define CAP_CONTEXT 31 ++ + #ifdef __KERNEL__ + /* + * Bounding set +Index: linux-2.6.16/include/linux/devpts_fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/devpts_fs.h ++++ linux-2.6.16/include/linux/devpts_fs.h +@@ -30,5 +30,7 @@ static inline void devpts_pty_kill(int n + + #endif + ++#define DEVPTS_SUPER_MAGIC 0x00001cd1 ++ + + #endif /* _LINUX_DEVPTS_FS_H */ +Index: linux-2.6.16/include/linux/ext2_fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/ext2_fs.h ++++ linux-2.6.16/include/linux/ext2_fs.h +@@ -192,10 +192,17 @@ struct ext2_group_desc + #define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */ + #define EXT2_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ + #define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ ++#define EXT2_BARRIER_FL 0x04000000 /* Barrier for chroot() */ ++#define EXT2_IUNLINK_FL 0x08000000 /* Immutable unlink */ + #define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ + ++#ifdef CONFIG_VSERVER_LEGACY ++#define EXT2_FL_USER_VISIBLE 0x0803DFFF /* User visible flags */ ++#define EXT2_FL_USER_MODIFIABLE 0x080380FF /* User modifiable flags */ ++#else + #define EXT2_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ + #define EXT2_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ ++#endif + + /* + * ioctl commands +@@ -240,7 +247,7 @@ struct ext2_inode { + struct { + __u8 l_i_frag; /* Fragment number */ + __u8 l_i_fsize; /* Fragment size */ +- __u16 i_pad1; ++ __u16 l_i_tag; /* Context Tag */ + __le16 l_i_uid_high; /* these 2 fields */ + __le16 l_i_gid_high; /* were reserved2[0] */ + __u32 l_i_reserved2; +@@ -272,6 +279,7 @@ struct ext2_inode { + #define i_gid_low i_gid + #define i_uid_high osd2.linux2.l_i_uid_high + #define i_gid_high osd2.linux2.l_i_gid_high ++#define i_raw_tag osd2.linux2.l_i_tag + #define i_reserved2 osd2.linux2.l_i_reserved2 + #endif + +@@ -313,8 +321,9 @@ struct ext2_inode { + #define EXT2_MOUNT_XATTR_USER 0x004000 /* Extended user attributes */ + #define EXT2_MOUNT_POSIX_ACL 0x008000 /* POSIX Access Control Lists */ + #define EXT2_MOUNT_XIP 0x010000 /* Execute in place */ +-#define EXT2_MOUNT_USRQUOTA 0x020000 /* user quota */ +-#define EXT2_MOUNT_GRPQUOTA 0x040000 /* group quota */ ++#define EXT2_MOUNT_USRQUOTA 0x020000 /* user quota */ ++#define EXT2_MOUNT_GRPQUOTA 0x040000 /* group quota */ ++#define EXT2_MOUNT_TAGGED (1<<24) /* Enable Context Tags */ + + + #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt +Index: linux-2.6.16/include/linux/ext3_fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/ext3_fs.h ++++ linux-2.6.16/include/linux/ext3_fs.h +@@ -185,10 +185,20 @@ struct ext3_group_desc + #define EXT3_NOTAIL_FL 0x00008000 /* file tail should not be merged */ + #define EXT3_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ + #define EXT3_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ ++#define EXT3_BARRIER_FL 0x04000000 /* Barrier for chroot() */ ++#define EXT3_IUNLINK_FL 0x08000000 /* Immutable unlink */ + #define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */ + ++#ifdef CONFIG_VSERVER_LEGACY ++#define EXT3_FL_USER_VISIBLE 0x0803DFFF /* User visible flags */ ++#define EXT3_FL_USER_MODIFIABLE 0x080380FF /* User modifiable flags */ ++#else + #define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ + #define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ ++#endif ++#ifdef CONFIG_VSERVER_LEGACY ++#define EXT3_IOC_SETTAG FIOC_SETTAGJ ++#endif + + /* + * Inode dynamic state flags +@@ -287,7 +297,7 @@ struct ext3_inode { + struct { + __u8 l_i_frag; /* Fragment number */ + __u8 l_i_fsize; /* Fragment size */ +- __u16 i_pad1; ++ __u16 l_i_tag; /* Context Tag */ + __le16 l_i_uid_high; /* these 2 fields */ + __le16 l_i_gid_high; /* were reserved2[0] */ + __u32 l_i_reserved2; +@@ -321,6 +331,7 @@ struct ext3_inode { + #define i_gid_low i_gid + #define i_uid_high osd2.linux2.l_i_uid_high + #define i_gid_high osd2.linux2.l_i_gid_high ++#define i_raw_tag osd2.linux2.l_i_tag + #define i_reserved2 osd2.linux2.l_i_reserved2 + + #elif defined(__GNU__) +@@ -375,6 +386,7 @@ struct ext3_inode { + #define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */ + #define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ + #define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ ++#define EXT3_MOUNT_TAGGED (1<<24) /* Enable Context Tags */ + + /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */ + #ifndef _LINUX_EXT2_FS_H +@@ -775,6 +787,7 @@ extern unsigned long ext3_count_free (st + extern int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int); + extern struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *); + extern struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *); ++extern int ext3_sync_flags(struct inode *inode); + + extern void ext3_read_inode (struct inode *); + extern int ext3_write_inode (struct inode *, int); +Index: linux-2.6.16/include/linux/ext3_jbd.h +=================================================================== +--- linux-2.6.16.orig/include/linux/ext3_jbd.h ++++ linux-2.6.16/include/linux/ext3_jbd.h +@@ -77,10 +77,10 @@ + #define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0) + /* Amount of blocks needed for quota insert/delete - we do some block writes + * but inode, sb and group updates are done only once */ +-#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\ +- (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0) +-#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\ +- (EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0) ++#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? \ ++ (DQUOT_INIT_ALLOC*(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0) ++#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? \ ++ (DQUOT_DEL_ALLOC*(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0) + #else + #define EXT3_QUOTA_TRANS_BLOCKS(sb) 0 + #define EXT3_QUOTA_INIT_BLOCKS(sb) 0 +Index: linux-2.6.16/include/linux/fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/fs.h ++++ linux-2.6.16/include/linux/fs.h +@@ -109,6 +109,8 @@ extern int dir_notify_enable; + #define MS_PRIVATE (1<<18) /* change to private */ + #define MS_SLAVE (1<<19) /* change to slave */ + #define MS_SHARED (1<<20) /* change to shared */ ++#define MS_TAGGED (1<<24) /* use generic inode tagging */ ++#define MS_TAGID (1<<25) /* use specific tag for this mount */ + #define MS_ACTIVE (1<<30) + #define MS_NOUSER (1<<31) + +@@ -135,6 +137,8 @@ extern int dir_notify_enable; + #define S_NOCMTIME 128 /* Do not update file c/mtime */ + #define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */ + #define S_PRIVATE 512 /* Inode is fs-internal */ ++#define S_BARRIER 1024 /* Barrier for chroot() */ ++#define S_IUNLINK 2048 /* Immutable unlink */ + + /* + * Note that nosuid etc flags are inode-specific: setting some file-system +@@ -151,23 +155,30 @@ extern int dir_notify_enable; + */ + #define __IS_FLG(inode,flg) ((inode)->i_sb->s_flags & (flg)) + +-#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY) ++#define IS_RDONLY(inode) __IS_FLG(inode, MS_RDONLY) + #define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \ + ((inode)->i_flags & S_SYNC)) + #define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \ + ((inode)->i_flags & (S_SYNC|S_DIRSYNC))) + #define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK) ++#define IS_TAGGED(inode) __IS_FLG(inode, MS_TAGGED) + + #define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA) + #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND) + #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) ++#define IS_IUNLINK(inode) ((inode)->i_flags & S_IUNLINK) ++#define IS_IXORUNLINK(inode) ((IS_IUNLINK(inode) ? S_IMMUTABLE : 0) ^ IS_IMMUTABLE(inode)) + #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) + ++#define IS_BARRIER(inode) (S_ISDIR((inode)->i_mode) && ((inode)->i_flags & S_BARRIER)) + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) + #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) + #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) + #define IS_PRIVATE(inode) ((inode)->i_flags & S_PRIVATE) + ++#define IS_COW_LINK(inode) (S_ISREG((inode)->i_mode) && \ ++ ((inode)->i_nlink > 1) && IS_IUNLINK(inode)) ++ + /* the read-only stuff doesn't really belong here, but any other place is + probably as bad and I don't want to create yet another include file. */ + +@@ -265,6 +276,7 @@ typedef void (dio_iodone_t)(struct kiocb + #define ATTR_KILL_SUID 2048 + #define ATTR_KILL_SGID 4096 + #define ATTR_FILE 8192 ++#define ATTR_TAG 16384 + + /* + * This is the Inode Attributes structure, used for notify_change(). It +@@ -280,6 +292,7 @@ struct iattr { + umode_t ia_mode; + uid_t ia_uid; + gid_t ia_gid; ++ tag_t ia_tag; + loff_t ia_size; + struct timespec ia_atime; + struct timespec ia_mtime; +@@ -293,6 +306,9 @@ struct iattr { + struct file *ia_file; + }; + ++#define ATTR_FLAG_BARRIER 512 /* Barrier for chroot() */ ++#define ATTR_FLAG_IUNLINK 1024 /* Immutable unlink */ ++ + /* + * Includes for diskquotas. + */ +@@ -471,6 +487,7 @@ struct inode { + unsigned int i_nlink; + uid_t i_uid; + gid_t i_gid; ++ tag_t i_tag; + dev_t i_rdev; + loff_t i_size; + struct timespec i_atime; +@@ -491,6 +508,7 @@ struct inode { + struct address_space *i_mapping; + struct address_space i_data; + #ifdef CONFIG_QUOTA ++ struct dqhash *i_dqh; + struct dquot *i_dquot[MAXQUOTAS]; + #endif + /* These three should probably be a union */ +@@ -633,6 +651,7 @@ struct file { + struct fown_struct f_owner; + unsigned int f_uid, f_gid; + struct file_ra_state f_ra; ++ xid_t f_xid; + + unsigned long f_version; + void *f_security; +@@ -712,6 +731,7 @@ struct file_lock { + unsigned char fl_type; + loff_t fl_start; + loff_t fl_end; ++ xid_t fl_xid; + + struct fasync_struct * fl_fasync; /* for lease break notifications */ + unsigned long fl_break_time; /* for nonblocking lease breaks */ +@@ -811,7 +831,7 @@ struct super_block { + unsigned long long s_maxbytes; /* Max file size */ + struct file_system_type *s_type; + struct super_operations *s_op; +- struct dquot_operations *dq_op; ++ struct dquot_operations *s_qop; + struct quotactl_ops *s_qcop; + struct export_operations *s_export_op; + unsigned long s_flags; +@@ -834,7 +854,7 @@ struct super_block { + + struct block_device *s_bdev; + struct list_head s_instances; +- struct quota_info s_dquot; /* Diskquota specific options */ ++ struct dqhash *s_dqh; /* Diskquota hash */ + + int s_frozen; + wait_queue_head_t s_wait_unfrozen; +@@ -904,12 +924,12 @@ static inline void unlock_super(struct s + */ + extern int vfs_permission(struct nameidata *, int); + extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *); +-extern int vfs_mkdir(struct inode *, struct dentry *, int); +-extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t); +-extern int vfs_symlink(struct inode *, struct dentry *, const char *, int); +-extern int vfs_link(struct dentry *, struct inode *, struct dentry *); +-extern int vfs_rmdir(struct inode *, struct dentry *); +-extern int vfs_unlink(struct inode *, struct dentry *); ++extern int vfs_mkdir(struct inode *, struct dentry *, int, struct nameidata *); ++extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t, struct nameidata *); ++extern int vfs_symlink(struct inode *, struct dentry *, const char *, int, struct nameidata *); ++extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct nameidata *); ++extern int vfs_rmdir(struct inode *, struct dentry *, struct nameidata *); ++extern int vfs_unlink(struct inode *, struct dentry *, struct nameidata *); + extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); + + /* +@@ -1049,6 +1069,7 @@ struct inode_operations { + ssize_t (*listxattr) (struct dentry *, char *, size_t); + int (*removexattr) (struct dentry *, const char *); + void (*truncate_range)(struct inode *, loff_t, loff_t); ++ int (*sync_flags) (struct inode *); + }; + + struct seq_file; +@@ -1059,6 +1080,7 @@ extern ssize_t vfs_readv(struct file *, + unsigned long, loff_t *); + extern ssize_t vfs_writev(struct file *, const struct iovec __user *, + unsigned long, loff_t *); ++ssize_t vfs_sendfile(struct file *, struct file *, loff_t *, size_t, loff_t); + + /* + * NOTE: write_inode, delete_inode, clear_inode, put_inode can be called +@@ -1087,8 +1109,8 @@ struct super_operations { + + int (*show_options)(struct seq_file *, struct vfsmount *); + +- ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t); +- ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t); ++ ssize_t (*quota_read)(struct dqhash *, int, char *, size_t, loff_t); ++ ssize_t (*quota_write)(struct dqhash *, int, const char *, size_t, loff_t); + }; + + /* Inode state bits. Protected by inode_lock. */ +@@ -1533,7 +1555,7 @@ extern void clear_inode(struct inode *); + extern void destroy_inode(struct inode *); + extern struct inode *new_inode(struct super_block *); + extern int remove_suid(struct dentry *); +-extern void remove_dquot_ref(struct super_block *, int, struct list_head *); ++extern void remove_dquot_ref(struct dqhash *, int, struct list_head *); + extern struct semaphore iprune_sem; + + extern void __insert_inode_hash(struct inode *, unsigned long hashval); +@@ -1573,6 +1595,7 @@ extern ssize_t do_sync_write(struct file + ssize_t generic_file_write_nolock(struct file *file, const struct iovec *iov, + unsigned long nr_segs, loff_t *ppos); + extern ssize_t generic_file_sendfile(struct file *, loff_t *, size_t, read_actor_t, void *); ++extern ssize_t generic_file_sendpage(struct file *, struct page *, int, size_t, loff_t *, int); + extern void do_generic_mapping_read(struct address_space *mapping, + struct file_ra_state *, struct file *, + loff_t *, read_descriptor_t *, read_actor_t); +@@ -1695,6 +1718,7 @@ extern int dcache_dir_open(struct inode + extern int dcache_dir_close(struct inode *, struct file *); + extern loff_t dcache_dir_lseek(struct file *, loff_t, int); + extern int dcache_readdir(struct file *, void *, filldir_t); ++extern int dcache_readdir_filter(struct file *, void *, filldir_t, int (*)(struct dentry *)); + extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *); + extern int simple_statfs(struct super_block *, struct kstatfs *); + extern int simple_link(struct dentry *, struct inode *, struct dentry *); +Index: linux-2.6.16/include/linux/init_task.h +=================================================================== +--- linux-2.6.16.orig/include/linux/init_task.h ++++ linux-2.6.16/include/linux/init_task.h +@@ -121,6 +121,10 @@ extern struct group_info init_groups; + .journal_info = NULL, \ + .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ + .fs_excl = ATOMIC_INIT(0), \ ++ .xid = 0, \ ++ .vx_info = NULL, \ ++ .nid = 0, \ ++ .nx_info = NULL, \ + } + + +Index: linux-2.6.16/include/linux/ipc.h +=================================================================== +--- linux-2.6.16.orig/include/linux/ipc.h ++++ linux-2.6.16/include/linux/ipc.h +@@ -66,6 +66,7 @@ struct kern_ipc_perm + mode_t mode; + unsigned long seq; + void *security; ++ xid_t xid; + }; + + #endif /* __KERNEL__ */ +Index: linux-2.6.16/include/linux/kernel.h +=================================================================== +--- linux-2.6.16.orig/include/linux/kernel.h ++++ linux-2.6.16/include/linux/kernel.h +@@ -17,6 +17,7 @@ + #include <asm/bug.h> + + extern const char linux_banner[]; ++extern const char vx_linux_banner[]; + + #define INT_MAX ((int)(~0U>>1)) + #define INT_MIN (-INT_MAX - 1) +Index: linux-2.6.16/include/linux/major.h +=================================================================== +--- linux-2.6.16.orig/include/linux/major.h ++++ linux-2.6.16/include/linux/major.h +@@ -15,6 +15,7 @@ + #define HD_MAJOR IDE0_MAJOR + #define PTY_SLAVE_MAJOR 3 + #define TTY_MAJOR 4 ++#define VROOT_MAJOR 4 + #define TTYAUX_MAJOR 5 + #define LP_MAJOR 6 + #define VCS_MAJOR 7 +Index: linux-2.6.16/include/linux/mount.h +=================================================================== +--- linux-2.6.16.orig/include/linux/mount.h ++++ linux-2.6.16/include/linux/mount.h +@@ -22,10 +22,14 @@ + #define MNT_NOEXEC 0x04 + #define MNT_NOATIME 0x08 + #define MNT_NODIRATIME 0x10 ++#define MNT_RDONLY 0x20 ++ ++#define MNT_IS_RDONLY(m) ((m) && ((m)->mnt_flags & MNT_RDONLY)) + + #define MNT_SHARED 0x1000 /* if the vfsmount is a shared mount */ + #define MNT_UNBINDABLE 0x2000 /* if the vfsmount is a unbindable mount */ + #define MNT_PNODE_MASK 0x3000 /* propogation flag mask */ ++#define MNT_TAGID 0x8000 + + struct vfsmount { + struct list_head mnt_hash; +@@ -47,6 +51,7 @@ struct vfsmount { + struct vfsmount *mnt_master; /* slave is on master->mnt_slave_list */ + struct namespace *mnt_namespace; /* containing namespace */ + int mnt_pinned; ++ tag_t mnt_tag; /* tagging used for vfsmount */ + }; + + static inline struct vfsmount *mntget(struct vfsmount *mnt) +Index: linux-2.6.16/include/linux/namespace.h +=================================================================== +--- linux-2.6.16.orig/include/linux/namespace.h ++++ linux-2.6.16/include/linux/namespace.h +@@ -16,6 +16,7 @@ struct namespace { + extern int copy_namespace(int, struct task_struct *); + extern void __put_namespace(struct namespace *namespace); + extern struct namespace *dup_namespace(struct task_struct *, struct fs_struct *); ++extern void umount_unused(struct vfsmount *, struct fs_struct *); + + static inline void put_namespace(struct namespace *namespace) + { +Index: linux-2.6.16/include/linux/net.h +=================================================================== +--- linux-2.6.16.orig/include/linux/net.h ++++ linux-2.6.16/include/linux/net.h +@@ -62,6 +62,7 @@ typedef enum { + #define SOCK_ASYNC_WAITDATA 1 + #define SOCK_NOSPACE 2 + #define SOCK_PASSCRED 3 ++#define SOCK_USER_SOCKET 4 + + #ifndef ARCH_HAS_SOCKET_TYPES + /** +Index: linux-2.6.16/include/linux/nfs_mount.h +=================================================================== +--- linux-2.6.16.orig/include/linux/nfs_mount.h ++++ linux-2.6.16/include/linux/nfs_mount.h +@@ -61,6 +61,7 @@ struct nfs_mount_data { + #define NFS_MOUNT_NOACL 0x0800 /* 4 */ + #define NFS_MOUNT_STRICTLOCK 0x1000 /* reserved for NFSv4 */ + #define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 */ ++#define NFS_MOUNT_TAGGED 0x8000 /* context tagging */ + #define NFS_MOUNT_FLAGMASK 0xFFFF + + #endif +Index: linux-2.6.16/include/linux/percpu.h +=================================================================== +--- linux-2.6.16.orig/include/linux/percpu.h ++++ linux-2.6.16/include/linux/percpu.h +@@ -8,7 +8,7 @@ + + /* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */ + #ifndef PERCPU_ENOUGH_ROOM +-#define PERCPU_ENOUGH_ROOM 32768 ++#define PERCPU_ENOUGH_ROOM 65536 + #endif + + /* Must be an lvalue. */ +Index: linux-2.6.16/include/linux/proc_fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/proc_fs.h ++++ linux-2.6.16/include/linux/proc_fs.h +@@ -55,6 +55,7 @@ struct proc_dir_entry { + nlink_t nlink; + uid_t uid; + gid_t gid; ++ int vx_flags; + unsigned long size; + struct inode_operations * proc_iops; + struct file_operations * proc_fops; +@@ -248,9 +249,11 @@ extern void kclist_add(struct kcore_list + struct proc_inode { + struct task_struct *task; + int type; ++ int vx_flags; + union { + int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **); + int (*proc_read)(struct task_struct *task, char *page); ++ int (*proc_vid_read)(int vid, char *page); + } op; + struct proc_dir_entry *pde; + struct inode vfs_inode; +Index: linux-2.6.16/include/linux/quota.h +=================================================================== +--- linux-2.6.16.orig/include/linux/quota.h ++++ linux-2.6.16/include/linux/quota.h +@@ -56,6 +56,13 @@ extern spinlock_t dq_data_lock; + #define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10)) + #define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS) + ++/* are NULL dqhash ptrs valid? */ ++#ifdef HANDLE_DQHASH_NULL ++#define dqhash_valid(hash) ((hash) != NULL) ++#else ++#define dqhash_valid(hash) (0 == 0) ++#endif ++ + #define MAXQUOTAS 2 + #define USRQUOTA 0 /* element used for user quotas */ + #define GRPQUOTA 1 /* element used for group quotas */ +@@ -175,19 +182,20 @@ struct mem_dqinfo { + } u; + }; + +-struct super_block; ++struct dqhash; + + #define DQF_MASK 0xffff /* Mask for format specific flags */ + #define DQF_INFO_DIRTY_B 16 + #define DQF_INFO_DIRTY (1 << DQF_INFO_DIRTY_B) /* Is info dirty? */ + +-extern void mark_info_dirty(struct super_block *sb, int type); ++extern void mark_info_dirty(struct dqhash *hash, int type); ++ + #define info_dirty(info) test_bit(DQF_INFO_DIRTY_B, &(info)->dqi_flags) + #define info_any_dquot_dirty(info) (!list_empty(&(info)->dqi_dirty_list)) + #define info_any_dirty(info) (info_dirty(info) || info_any_dquot_dirty(info)) + +-#define sb_dqopt(sb) (&(sb)->s_dquot) +-#define sb_dqinfo(sb, type) (sb_dqopt(sb)->info+(type)) ++#define dqh_dqopt(hash) (&(hash)->dqh_dqopt) ++#define dqh_dqinfo(hash, type) (dqh_dqopt(hash)->info+(type)) + + struct dqstats { + int lookups; +@@ -218,7 +226,7 @@ struct dquot { + struct semaphore dq_lock; /* dquot IO lock */ + atomic_t dq_count; /* Use count */ + wait_queue_head_t dq_wait_unused; /* Wait queue for dquot to become unused */ +- struct super_block *dq_sb; /* superblock this applies to */ ++ struct dqhash *dq_dqh; /* quota hash backpointer */ + unsigned int dq_id; /* ID this applies to (uid, gid) */ + loff_t dq_off; /* Offset of dquot on disk */ + unsigned long dq_flags; /* See DQ_* */ +@@ -233,13 +241,14 @@ struct dquot { + + /* Operations which must be implemented by each quota format */ + struct quota_format_ops { +- int (*check_quota_file)(struct super_block *sb, int type); /* Detect whether file is in our format */ +- int (*read_file_info)(struct super_block *sb, int type); /* Read main info about file - called on quotaon() */ +- int (*write_file_info)(struct super_block *sb, int type); /* Write main info about file */ +- int (*free_file_info)(struct super_block *sb, int type); /* Called on quotaoff() */ +- int (*read_dqblk)(struct dquot *dquot); /* Read structure for one user */ +- int (*commit_dqblk)(struct dquot *dquot); /* Write structure for one user */ +- int (*release_dqblk)(struct dquot *dquot); /* Called when last reference to dquot is being dropped */ ++ int (*check_quota_file)(struct dqhash *, int); /* Detect whether file is in our format */ ++ int (*read_file_info)(struct dqhash *, int); /* Read main info about file - called on quotaon() */ ++ int (*write_file_info)(struct dqhash *, int); /* Write main info about file */ ++ int (*free_file_info)(struct dqhash *, int); /* Called on quotaoff() */ ++ ++ int (*read_dqblk)(struct dquot *); /* Read structure for one user */ ++ int (*commit_dqblk)(struct dquot *); /* Write structure for one user */ ++ int (*release_dqblk)(struct dquot *); /* Called when last reference to dquot is being dropped */ + }; + + /* Operations working with dquots */ +@@ -255,22 +264,22 @@ struct dquot_operations { + int (*acquire_dquot) (struct dquot *); /* Quota is going to be created on disk */ + int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */ + int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */ +- int (*write_info) (struct super_block *, int); /* Write of quota "superblock" */ ++ int (*write_info) (struct dqhash *, int); /* Write of quota "superblock" */ + }; + + /* Operations handling requests from userspace */ + struct quotactl_ops { +- int (*quota_on)(struct super_block *, int, int, char *); +- int (*quota_off)(struct super_block *, int); +- int (*quota_sync)(struct super_block *, int); +- int (*get_info)(struct super_block *, int, struct if_dqinfo *); +- int (*set_info)(struct super_block *, int, struct if_dqinfo *); +- int (*get_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *); +- int (*set_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *); +- int (*get_xstate)(struct super_block *, struct fs_quota_stat *); +- int (*set_xstate)(struct super_block *, unsigned int, int); +- int (*get_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *); +- int (*set_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *); ++ int (*quota_on)(struct dqhash *, int, int, char *); ++ int (*quota_off)(struct dqhash *, int); ++ int (*quota_sync)(struct dqhash *, int); ++ int (*get_info)(struct dqhash *, int, struct if_dqinfo *); ++ int (*set_info)(struct dqhash *, int, struct if_dqinfo *); ++ int (*get_dqblk)(struct dqhash *, int, qid_t, struct if_dqblk *); ++ int (*set_dqblk)(struct dqhash *, int, qid_t, struct if_dqblk *); ++ int (*get_xstate)(struct dqhash *, struct fs_quota_stat *); ++ int (*set_xstate)(struct dqhash *, unsigned int, int); ++ int (*get_xquota)(struct dqhash *, int, qid_t, struct fs_disk_quota *); ++ int (*set_xquota)(struct dqhash *, int, qid_t, struct fs_disk_quota *); + }; + + struct quota_format_type { +@@ -293,16 +302,15 @@ struct quota_info { + struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */ + }; + +-/* Inline would be better but we need to dereference super_block which is not defined yet */ +-int mark_dquot_dirty(struct dquot *dquot); + + #define dquot_dirty(dquot) test_bit(DQ_MOD_B, &(dquot)->dq_flags) + +-#define sb_has_quota_enabled(sb, type) ((type)==USRQUOTA ? \ +- (sb_dqopt(sb)->flags & DQUOT_USR_ENABLED) : (sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED)) ++#define dqh_has_quota_enabled(hash, type) (dqhash_valid(hash) && ((type)==USRQUOTA ? \ ++ (dqh_dqopt(hash)->flags & DQUOT_USR_ENABLED) : (dqh_dqopt(hash)->flags & DQUOT_GRP_ENABLED))) ++ ++#define dqh_any_quota_enabled(hash) (dqhash_valid(hash) && \ ++ (dqh_has_quota_enabled(hash, USRQUOTA) || dqh_has_quota_enabled(hash, GRPQUOTA))) + +-#define sb_any_quota_enabled(sb) (sb_has_quota_enabled(sb, USRQUOTA) | \ +- sb_has_quota_enabled(sb, GRPQUOTA)) + + int register_quota_format(struct quota_format_type *fmt); + void unregister_quota_format(struct quota_format_type *fmt); +@@ -317,6 +325,51 @@ struct quota_module_name { + {QFMT_VFS_V0, "quota_v2"},\ + {0, NULL}} + ++struct dqhash { ++ struct list_head dqh_list; /* List of all quota hashes */ ++ unsigned int dqh_id; /* ID for hash */ ++ atomic_t dqh_count; /* Use count */ ++ struct quota_info dqh_dqopt; /* Diskquota specific options */ ++ struct dquot_operations *dqh_qop; ++ struct quotactl_ops *dqh_qcop; ++ struct super_block *dqh_sb; /* super block */ ++ unsigned int dqh_hash_bits; ++ unsigned int dqh_hash_mask; ++ struct hlist_head *dqh_hash; ++}; ++ ++#if defined(CONFIG_QUOTA) ++ ++ ++struct dqhash *new_dqhash(struct super_block *, unsigned int); ++void destroy_dqhash(struct dqhash *); ++struct dqhash *find_dqhash(unsigned int); ++ ++static inline void dqhput(struct dqhash *hash) ++{ ++ if (dqhash_valid(hash)) ++ if (atomic_dec_and_test(&hash->dqh_count)) ++ destroy_dqhash(hash); ++} ++ ++static inline struct dqhash *dqhget(struct dqhash *hash) ++{ ++ if (dqhash_valid(hash)) ++ atomic_inc(&hash->dqh_count); ++ return hash; ++} ++ ++#else /* CONFIG_QUOTA */ ++ ++#define new_dqhash(sb, dqdom) (0) ++#define find_dqhash(dqdom) (0) ++#define destroy_dqhash(hash) do { } while(0) ++ ++#define dqhput(hash) do { } while(0) ++#define dqhget(hash) (hash) ++ ++#endif /* CONFIG_QUOTA */ ++ + #else + + # /* nodep */ include <sys/cdefs.h> +Index: linux-2.6.16/include/linux/quotaops.h +=================================================================== +--- linux-2.6.16.orig/include/linux/quotaops.h ++++ linux-2.6.16/include/linux/quotaops.h +@@ -20,7 +20,7 @@ + /* + * declaration of quota_function calls in kernel. + */ +-extern void sync_dquots(struct super_block *sb, int type); ++extern void sync_dquots(struct dqhash *hash, int type); + + extern int dquot_initialize(struct inode *inode, int type); + extern int dquot_drop(struct inode *inode); +@@ -35,19 +35,19 @@ extern int dquot_transfer(struct inode * + extern int dquot_commit(struct dquot *dquot); + extern int dquot_acquire(struct dquot *dquot); + extern int dquot_release(struct dquot *dquot); +-extern int dquot_commit_info(struct super_block *sb, int type); ++extern int dquot_commit_info(struct dqhash *hash, int type); + extern int dquot_mark_dquot_dirty(struct dquot *dquot); + +-extern int vfs_quota_on(struct super_block *sb, int type, int format_id, char *path); +-extern int vfs_quota_on_mount(struct super_block *sb, char *qf_name, ++extern int vfs_quota_on(struct dqhash *hash, int type, int format_id, char *path); ++extern int vfs_quota_on_mount(struct dqhash *hash, char *qf_name, + int format_id, int type); +-extern int vfs_quota_off(struct super_block *sb, int type); +-#define vfs_quota_off_mount(sb, type) vfs_quota_off(sb, type) +-extern int vfs_quota_sync(struct super_block *sb, int type); +-extern int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); +-extern int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii); +-extern int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di); +-extern int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di); ++extern int vfs_quota_off(struct dqhash *hash, int type); ++#define vfs_quota_off_mount(dqh, type) vfs_quota_off(dqh, type) ++extern int vfs_quota_sync(struct dqhash *hash, int type); ++extern int vfs_get_dqinfo(struct dqhash *hash, int type, struct if_dqinfo *ii); ++extern int vfs_set_dqinfo(struct dqhash *hash, int type, struct if_dqinfo *ii); ++extern int vfs_get_dqblk(struct dqhash *hash, int type, qid_t id, struct if_dqblk *di); ++extern int vfs_set_dqblk(struct dqhash *hash, int type, qid_t id, struct if_dqblk *di); + + /* + * Operations supported for diskquotas. +@@ -62,9 +62,12 @@ extern struct quotactl_ops vfs_quotactl_ + * need a lot of space in journal for dquot structure allocation. */ + static __inline__ void DQUOT_INIT(struct inode *inode) + { +- BUG_ON(!inode->i_sb); +- if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) +- inode->i_sb->dq_op->initialize(inode, -1); ++ if (!dqhash_valid(inode->i_dqh)) ++ return; ++ BUG_ON(!inode->i_dqh); ++ // printk("DQUOT_INIT(%p,%p,%d)\n", inode, inode->i_dqh, dqh_any_quota_enabled(inode->i_dqh)); ++ if (dqh_any_quota_enabled(inode->i_dqh) && !IS_NOQUOTA(inode)) ++ inode->i_dqh->dqh_qop->initialize(inode, -1); + } + + /* The same as with DQUOT_INIT */ +@@ -73,8 +76,8 @@ static __inline__ void DQUOT_DROP(struct + /* Here we can get arbitrary inode from clear_inode() so we have + * to be careful. OTOH we don't need locking as quota operations + * are allowed to change only at mount time */ +- if (!IS_NOQUOTA(inode) && inode->i_sb && inode->i_sb->dq_op +- && inode->i_sb->dq_op->drop) { ++ if (!IS_NOQUOTA(inode) && inode->i_dqh && inode->i_dqh->dqh_qop ++ && inode->i_dqh->dqh_qop->drop) { + int cnt; + /* Test before calling to rule out calls from proc and such + * where we are not allowed to block. Note that this is +@@ -85,7 +88,7 @@ static __inline__ void DQUOT_DROP(struct + if (inode->i_dquot[cnt] != NODQUOT) + break; + if (cnt < MAXQUOTAS) +- inode->i_sb->dq_op->drop(inode); ++ inode->i_dqh->dqh_qop->drop(inode); + } + } + +@@ -93,9 +96,9 @@ static __inline__ void DQUOT_DROP(struct + * a transaction (deadlocks possible otherwise) */ + static __inline__ int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) + { +- if (sb_any_quota_enabled(inode->i_sb)) { ++ if (dqh_any_quota_enabled(inode->i_dqh)) { + /* Used space is updated in alloc_space() */ +- if (inode->i_sb->dq_op->alloc_space(inode, nr, 1) == NO_QUOTA) ++ if (inode->i_dqh->dqh_qop->alloc_space(inode, nr, 1) == NO_QUOTA) + return 1; + } + else +@@ -113,9 +116,9 @@ static __inline__ int DQUOT_PREALLOC_SPA + + static __inline__ int DQUOT_ALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) + { +- if (sb_any_quota_enabled(inode->i_sb)) { ++ if (dqh_any_quota_enabled(inode->i_dqh)) { + /* Used space is updated in alloc_space() */ +- if (inode->i_sb->dq_op->alloc_space(inode, nr, 0) == NO_QUOTA) ++ if (inode->i_dqh->dqh_qop->alloc_space(inode, nr, 0) == NO_QUOTA) + return 1; + } + else +@@ -133,9 +136,9 @@ static __inline__ int DQUOT_ALLOC_SPACE( + + static __inline__ int DQUOT_ALLOC_INODE(struct inode *inode) + { +- if (sb_any_quota_enabled(inode->i_sb)) { ++ if (dqh_any_quota_enabled(inode->i_dqh)) { + DQUOT_INIT(inode); +- if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) ++ if (inode->i_dqh->dqh_qop->alloc_inode(inode, 1) == NO_QUOTA) + return 1; + } + return 0; +@@ -143,8 +146,8 @@ static __inline__ int DQUOT_ALLOC_INODE( + + static __inline__ void DQUOT_FREE_SPACE_NODIRTY(struct inode *inode, qsize_t nr) + { +- if (sb_any_quota_enabled(inode->i_sb)) +- inode->i_sb->dq_op->free_space(inode, nr); ++ if (dqh_any_quota_enabled(inode->i_dqh)) ++ inode->i_dqh->dqh_qop->free_space(inode, nr); + else + inode_sub_bytes(inode, nr); + } +@@ -157,29 +160,30 @@ static __inline__ void DQUOT_FREE_SPACE( + + static __inline__ void DQUOT_FREE_INODE(struct inode *inode) + { +- if (sb_any_quota_enabled(inode->i_sb)) +- inode->i_sb->dq_op->free_inode(inode, 1); ++ if (dqh_any_quota_enabled(inode->i_dqh)) ++ inode->i_dqh->dqh_qop->free_inode(inode, 1); + } + + static __inline__ int DQUOT_TRANSFER(struct inode *inode, struct iattr *iattr) + { +- if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) { ++ if (dqh_any_quota_enabled(inode->i_dqh) && !IS_NOQUOTA(inode)) { + DQUOT_INIT(inode); +- if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA) ++ if (inode->i_dqh->dqh_qop->transfer(inode, iattr) == NO_QUOTA) + return 1; + } + return 0; + } + + /* The following two functions cannot be called inside a transaction */ +-#define DQUOT_SYNC(sb) sync_dquots(sb, -1) ++#define DQUOT_SYNC(hash) sync_dquots(hash, -1) + +-static __inline__ int DQUOT_OFF(struct super_block *sb) ++static __inline__ int DQUOT_OFF(struct dqhash *hash) + { + int ret = -ENOSYS; + +- if (sb_any_quota_enabled(sb) && sb->s_qcop && sb->s_qcop->quota_off) +- ret = sb->s_qcop->quota_off(sb, -1); ++ if (dqh_any_quota_enabled(hash) && hash->dqh_qcop && ++ hash->dqh_qcop->quota_off) ++ ret = hash->dqh_qcop->quota_off(hash, -1); + return ret; + } + +@@ -194,8 +198,8 @@ static __inline__ int DQUOT_OFF(struct s + #define DQUOT_DROP(inode) do { } while(0) + #define DQUOT_ALLOC_INODE(inode) (0) + #define DQUOT_FREE_INODE(inode) do { } while(0) +-#define DQUOT_SYNC(sb) do { } while(0) +-#define DQUOT_OFF(sb) do { } while(0) ++#define DQUOT_SYNC(hash) do { } while(0) ++#define DQUOT_OFF(hash) do { } while(0) + #define DQUOT_TRANSFER(inode, iattr) (0) + static inline int DQUOT_PREALLOC_SPACE_NODIRTY(struct inode *inode, qsize_t nr) + { +Index: linux-2.6.16/include/linux/reiserfs_fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/reiserfs_fs.h ++++ linux-2.6.16/include/linux/reiserfs_fs.h +@@ -829,6 +829,18 @@ struct stat_data_v1 { + #define REISERFS_COMPR_FL EXT2_COMPR_FL + #define REISERFS_NOTAIL_FL EXT2_NOTAIL_FL + ++/* unfortunately reiserfs sdattr is only 16 bit */ ++#define REISERFS_BARRIER_FL (EXT2_BARRIER_FL >> 16) ++#define REISERFS_IUNLINK_FL (EXT2_IUNLINK_FL >> 16) ++ ++#ifdef CONFIG_VSERVER_LEGACY ++#define REISERFS_FL_USER_VISIBLE (REISERFS_IUNLINK_FL|0x80FF) ++#define REISERFS_FL_USER_MODIFIABLE (REISERFS_IUNLINK_FL|0x80FF) ++#else ++#define REISERFS_FL_USER_VISIBLE 0x80FF ++#define REISERFS_FL_USER_MODIFIABLE 0x80FF ++#endif ++ + /* persistent flags that file inherits from the parent directory */ + #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL | \ + REISERFS_SYNC_FL | \ +@@ -1904,6 +1916,7 @@ static inline void reiserfs_update_sd(st + void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode); + void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs); + int reiserfs_setattr(struct dentry *dentry, struct iattr *attr); ++int reiserfs_sync_flags(struct inode *inode); + + /* namei.c */ + void set_de_name_and_namelen(struct reiserfs_dir_entry *de); +Index: linux-2.6.16/include/linux/reiserfs_fs_sb.h +=================================================================== +--- linux-2.6.16.orig/include/linux/reiserfs_fs_sb.h ++++ linux-2.6.16/include/linux/reiserfs_fs_sb.h +@@ -456,6 +456,7 @@ enum reiserfs_mount_options { + REISERFS_POSIXACL, + REISERFS_BARRIER_NONE, + REISERFS_BARRIER_FLUSH, ++ REISERFS_TAGGED, + + /* Actions on error */ + REISERFS_ERROR_PANIC, +Index: linux-2.6.16/include/linux/sched.h +=================================================================== +--- linux-2.6.16.orig/include/linux/sched.h ++++ linux-2.6.16/include/linux/sched.h +@@ -15,6 +15,7 @@ + #include <linux/cpumask.h> + #include <linux/errno.h> + #include <linux/nodemask.h> ++#include <linux/vs_base.h> + + #include <asm/system.h> + #include <asm/semaphore.h> +@@ -61,12 +62,13 @@ struct exec_domain; + #define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */ + #define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */ + #define CLONE_STOPPED 0x02000000 /* Start in stopped state */ ++#define CLONE_KTHREAD 0x10000000 /* clone a kernel thread */ + + /* + * List of flags we want to share for kernel threads, + * if only because they are not used by them anyway. + */ +-#define CLONE_KERNEL (CLONE_FS | CLONE_FILES | CLONE_SIGHAND) ++#define CLONE_KERNEL (CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_KTHREAD) + + /* + * These are the constant used to fake the fixed-point load-average +@@ -129,6 +131,7 @@ extern unsigned long nr_iowait(void); + #define EXIT_DEAD 32 + /* in tsk->state again */ + #define TASK_NONINTERACTIVE 64 ++#define TASK_ONHOLD 128 + + #define __set_task_state(tsk, state_value) \ + do { (tsk)->state = (state_value); } while (0) +@@ -257,27 +260,30 @@ extern void arch_unmap_area_topdown(stru + * The mm counters are not protected by its page_table_lock, + * so must be incremented atomically. + */ +-#define set_mm_counter(mm, member, value) atomic_long_set(&(mm)->_##member, value) +-#define get_mm_counter(mm, member) ((unsigned long)atomic_long_read(&(mm)->_##member)) +-#define add_mm_counter(mm, member, value) atomic_long_add(value, &(mm)->_##member) +-#define inc_mm_counter(mm, member) atomic_long_inc(&(mm)->_##member) +-#define dec_mm_counter(mm, member) atomic_long_dec(&(mm)->_##member) + typedef atomic_long_t mm_counter_t; ++#define __set_mm_counter(mm, member, value) \ ++ atomic_long_set(&(mm)->_##member, value) ++#define get_mm_counter(mm, member) \ ++ ((unsigned long)atomic_long_read(&(mm)->_##member)) + + #else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ + /* + * The mm counters are protected by its page_table_lock, + * so can be incremented directly. + */ +-#define set_mm_counter(mm, member, value) (mm)->_##member = (value) +-#define get_mm_counter(mm, member) ((mm)->_##member) +-#define add_mm_counter(mm, member, value) (mm)->_##member += (value) +-#define inc_mm_counter(mm, member) (mm)->_##member++ +-#define dec_mm_counter(mm, member) (mm)->_##member-- + typedef unsigned long mm_counter_t; ++#define __set_mm_counter(mm, member, value) (mm)->_##member = (value) ++#define get_mm_counter(mm, member) ((mm)->_##member) + + #endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ + ++#define set_mm_counter(mm, member, value) \ ++ vx_ ## member ## pages_sub((mm), (get_mm_counter(mm, member) - value)) ++#define add_mm_counter(mm, member, value) \ ++ vx_ ## member ## pages_add((mm), (value)) ++#define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm)) ++#define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm)) ++ + #define get_mm_rss(mm) \ + (get_mm_counter(mm, file_rss) + get_mm_counter(mm, anon_rss)) + #define update_hiwater_rss(mm) do { \ +@@ -336,6 +342,7 @@ struct mm_struct { + + /* Architecture-specific MM context */ + mm_context_t context; ++ struct vx_info *mm_vx_info; + + /* Token based thrashing protection. */ + unsigned long swap_token_time; +@@ -514,9 +521,10 @@ struct user_struct { + /* Hash table maintenance information */ + struct list_head uidhash_list; + uid_t uid; ++ xid_t xid; + }; + +-extern struct user_struct *find_user(uid_t); ++extern struct user_struct *find_user(xid_t, uid_t); + + extern struct user_struct root_user; + #define INIT_USER (&root_user) +@@ -818,6 +826,14 @@ struct task_struct { + + void *security; + struct audit_context *audit_context; ++ ++/* vserver context data */ ++ struct vx_info *vx_info; ++ struct nx_info *nx_info; ++ ++ xid_t xid; ++ nid_t nid; ++ + seccomp_t seccomp; + + /* Thread group tracking */ +@@ -1020,13 +1036,19 @@ extern struct task_struct init_task; + + extern struct mm_struct init_mm; + +-#define find_task_by_pid(nr) find_task_by_pid_type(PIDTYPE_PID, nr) ++ ++#define find_task_by_real_pid(nr) \ ++ find_task_by_pid_type(PIDTYPE_PID, nr) ++#define find_task_by_pid(nr) \ ++ find_task_by_pid_type(PIDTYPE_PID, \ ++ vx_rmap_pid(nr)) ++ + extern struct task_struct *find_task_by_pid_type(int type, int pid); + extern void set_special_pids(pid_t session, pid_t pgrp); + extern void __set_special_pids(pid_t session, pid_t pgrp); + + /* per-UID process charging. */ +-extern struct user_struct * alloc_uid(uid_t); ++extern struct user_struct * alloc_uid(xid_t, uid_t); + static inline struct user_struct *get_uid(struct user_struct *u) + { + atomic_inc(&u->__count); +Index: linux-2.6.16/include/linux/security.h +=================================================================== +--- linux-2.6.16.orig/include/linux/security.h ++++ linux-2.6.16/include/linux/security.h +@@ -1102,7 +1102,7 @@ struct security_operations { + int (*acct) (struct file * file); + int (*sysctl) (struct ctl_table * table, int op); + int (*capable) (struct task_struct * tsk, int cap); +- int (*quotactl) (int cmds, int type, int id, struct super_block * sb); ++ int (*quotactl) (int cmds, int type, int id, struct dqhash *); + int (*quota_on) (struct dentry * dentry); + int (*syslog) (int type); + int (*settime) (struct timespec *ts, struct timezone *tz); +@@ -1357,9 +1357,9 @@ static inline int security_sysctl(struct + } + + static inline int security_quotactl (int cmds, int type, int id, +- struct super_block *sb) ++ struct dqhash *hash) + { +- return security_ops->quotactl (cmds, type, id, sb); ++ return security_ops->quotactl (cmds, type, id, hash); + } + + static inline int security_quota_on (struct dentry * dentry) +@@ -2060,7 +2060,7 @@ static inline int security_sysctl(struct + } + + static inline int security_quotactl (int cmds, int type, int id, +- struct super_block * sb) ++ struct dqhash * hash) + { + return 0; + } +Index: linux-2.6.16/include/linux/shmem_fs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/shmem_fs.h ++++ linux-2.6.16/include/linux/shmem_fs.h +@@ -8,6 +8,9 @@ + + #define SHMEM_NR_DIRECT 16 + ++#define TMPFS_SUPER_MAGIC 0x01021994 ++ ++ + struct shmem_inode_info { + spinlock_t lock; + unsigned long flags; +Index: linux-2.6.16/include/linux/stat.h +=================================================================== +--- linux-2.6.16.orig/include/linux/stat.h ++++ linux-2.6.16/include/linux/stat.h +@@ -63,6 +63,7 @@ struct kstat { + unsigned int nlink; + uid_t uid; + gid_t gid; ++ tag_t tag; + dev_t rdev; + loff_t size; + struct timespec atime; +Index: linux-2.6.16/include/linux/sunrpc/auth.h +=================================================================== +--- linux-2.6.16.orig/include/linux/sunrpc/auth.h ++++ linux-2.6.16/include/linux/sunrpc/auth.h +@@ -28,6 +28,7 @@ + struct auth_cred { + uid_t uid; + gid_t gid; ++ tag_t tag; + struct group_info *group_info; + }; + +Index: linux-2.6.16/include/linux/sunrpc/clnt.h +=================================================================== +--- linux-2.6.16.orig/include/linux/sunrpc/clnt.h ++++ linux-2.6.16/include/linux/sunrpc/clnt.h +@@ -51,7 +51,8 @@ struct rpc_clnt { + cl_intr : 1,/* interruptible */ + cl_autobind : 1,/* use getport() */ + cl_oneshot : 1,/* dispose after use */ +- cl_dead : 1;/* abandoned */ ++ cl_dead : 1,/* abandoned */ ++ cl_tag : 1;/* context tagging */ + + struct rpc_rtt * cl_rtt; /* RTO estimator data */ + struct rpc_portmap * cl_pmap; /* port mapping */ +Index: linux-2.6.16/include/linux/syscalls.h +=================================================================== +--- linux-2.6.16.orig/include/linux/syscalls.h ++++ linux-2.6.16/include/linux/syscalls.h +@@ -293,6 +293,8 @@ asmlinkage long sys_symlink(const char _ + asmlinkage long sys_unlink(const char __user *pathname); + asmlinkage long sys_rename(const char __user *oldname, + const char __user *newname); ++asmlinkage long sys_copyfile(const char __user *from, const char __user *to, ++ umode_t mode); + asmlinkage long sys_chmod(const char __user *filename, mode_t mode); + asmlinkage long sys_fchmod(unsigned int fd, mode_t mode); + +Index: linux-2.6.16/include/linux/sysctl.h +=================================================================== +--- linux-2.6.16.orig/include/linux/sysctl.h ++++ linux-2.6.16/include/linux/sysctl.h +@@ -152,6 +152,7 @@ enum + #ifdef CONFIG_ALPHA_UAC_SYSCTL + KERN_UAC_POLICY=74, /* int: Alpha unaligned access control policy flags */ + #endif /* CONFIG_ALPHA_UAC_SYSCTL */ ++ KERN_VSHELPER=75, /* string: path to vshelper policy agent */ + }; + + +@@ -897,6 +898,9 @@ typedef int ctl_handler (ctl_table *tabl + typedef int proc_handler (ctl_table *ctl, int write, struct file * filp, + void __user *buffer, size_t *lenp, loff_t *ppos); + ++typedef int virt_handler (struct ctl_table *ctl, int write, xid_t xid, ++ void **datap, size_t *lenp); ++ + extern int proc_dostring(ctl_table *, int, struct file *, + void __user *, size_t *, loff_t *); + extern int proc_dointvec(ctl_table *, int, struct file *, +@@ -978,6 +982,7 @@ struct ctl_table + mode_t mode; + ctl_table *child; + proc_handler *proc_handler; /* Callback for text formatting */ ++ virt_handler *virt_handler; /* Context virtualization */ + ctl_handler *strategy; /* Callback function for all r/w */ + struct proc_dir_entry *de; /* /proc control block */ + void *extra1; +Index: linux-2.6.16/include/linux/sysfs.h +=================================================================== +--- linux-2.6.16.orig/include/linux/sysfs.h ++++ linux-2.6.16/include/linux/sysfs.h +@@ -12,6 +12,8 @@ + + #include <asm/atomic.h> + ++#define SYSFS_SUPER_MAGIC 0x62656572 ++ + struct kobject; + struct module; + +Index: linux-2.6.16/include/linux/types.h +=================================================================== +--- linux-2.6.16.orig/include/linux/types.h ++++ linux-2.6.16/include/linux/types.h +@@ -38,6 +38,9 @@ typedef __kernel_uid32_t uid_t; + typedef __kernel_gid32_t gid_t; + typedef __kernel_uid16_t uid16_t; + typedef __kernel_gid16_t gid16_t; ++typedef unsigned int xid_t; ++typedef unsigned int nid_t; ++typedef unsigned int tag_t; + + #ifdef CONFIG_UID16 + /* This is defined by include/asm-{arch}/posix_types.h */ +Index: linux-2.6.16/include/linux/vroot.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vroot.h +@@ -0,0 +1,51 @@ ++ ++/* ++ * include/linux/vroot.h ++ * ++ * written by Herbert Pötzl, 9/11/2002 ++ * ported to 2.6 by Herbert Pötzl, 30/12/2004 ++ * ++ * Copyright (C) 2002-2005 by Herbert Pötzl. ++ * Redistribution of this file is permitted under the ++ * GNU General Public License. ++ */ ++ ++#ifndef _LINUX_VROOT_H ++#define _LINUX_VROOT_H ++ ++ ++#ifdef __KERNEL__ ++ ++/* Possible states of device */ ++enum { ++ Vr_unbound, ++ Vr_bound, ++}; ++ ++struct vroot_device { ++ int vr_number; ++ int vr_refcnt; ++ ++ struct semaphore vr_ctl_mutex; ++ struct block_device *vr_device; ++ int vr_state; ++}; ++ ++ ++typedef struct block_device *(vroot_grb_func)(struct block_device *); ++ ++extern int register_vroot_grb(vroot_grb_func *); ++extern int unregister_vroot_grb(vroot_grb_func *); ++ ++#endif /* __KERNEL__ */ ++ ++#define MAX_VROOT_DEFAULT 8 ++ ++/* ++ * IOCTL commands --- we will commandeer 0x56 ('V') ++ */ ++ ++#define VROOT_SET_DEV 0x5600 ++#define VROOT_CLR_DEV 0x5601 ++ ++#endif /* _LINUX_VROOT_H */ +Index: linux-2.6.16/include/linux/vs_base.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_base.h +@@ -0,0 +1,102 @@ ++#ifndef _VX_VS_BASE_H ++#define _VX_VS_BASE_H ++ ++#include "vserver/context.h" ++ ++ ++#define vx_task_xid(t) ((t)->xid) ++ ++#define vx_current_xid() vx_task_xid(current) ++ ++#define vx_check(c,m) __vx_check(vx_current_xid(),c,m) ++ ++#define vx_weak_check(c,m) ((m) ? vx_check(c,m) : 1) ++ ++ ++/* ++ * check current context for ADMIN/WATCH and ++ * optionally against supplied argument ++ */ ++static inline int __vx_check(xid_t cid, xid_t id, unsigned int mode) ++{ ++ if (mode & VX_ARG_MASK) { ++ if ((mode & VX_IDENT) && ++ (id == cid)) ++ return 1; ++ } ++ if (mode & VX_ATR_MASK) { ++ if ((mode & VX_DYNAMIC) && ++ (id >= MIN_D_CONTEXT) && ++ (id <= MAX_S_CONTEXT)) ++ return 1; ++ if ((mode & VX_STATIC) && ++ (id > 1) && (id < MIN_D_CONTEXT)) ++ return 1; ++ } ++ return (((mode & VX_ADMIN) && (cid == 0)) || ++ ((mode & VX_WATCH) && (cid == 1)) || ++ ((mode & VX_HOSTID) && (id == 0))); ++} ++ ++ ++#define __vx_state(v) ((v) ? ((v)->vx_state) : 0) ++ ++#define vx_info_state(v,m) (__vx_state(v) & (m)) ++ ++ ++/* generic flag merging */ ++ ++#define vx_check_flags(v,m,f) (((v) & (m)) ^ (f)) ++ ++#define vx_mask_flags(v,f,m) (((v) & ~(m)) | ((f) & (m))) ++ ++#define vx_mask_mask(v,f,m) (((v) & ~(m)) | ((v) & (f) & (m))) ++ ++#define vx_check_bit(v,n) ((v) & (1LL << (n))) ++ ++ ++/* context flags */ ++ ++#define __vx_flags(v) ((v) ? (v)->vx_flags : 0) ++ ++#define vx_current_flags() __vx_flags(current->vx_info) ++ ++#define vx_info_flags(v,m,f) \ ++ vx_check_flags(__vx_flags(v),(m),(f)) ++ ++#define task_vx_flags(t,m,f) \ ++ ((t) && vx_info_flags((t)->vx_info, (m), (f))) ++ ++#define vx_flags(m,f) vx_info_flags(current->vx_info,(m),(f)) ++ ++ ++/* context caps */ ++ ++#define __vx_ccaps(v) ((v) ? (v)->vx_ccaps : 0) ++ ++#define vx_current_ccaps() __vx_ccaps(current->vx_info) ++ ++#define vx_info_ccaps(v,c) (__vx_ccaps(v) & (c)) ++ ++#define vx_ccaps(c) vx_info_ccaps(current->vx_info,(c)) ++ ++ ++#define __vx_mcaps(v) ((v) ? (v)->vx_ccaps >> 32UL : ~0 ) ++ ++#define vx_info_mcaps(v,c) (__vx_mcaps(v) & (c)) ++ ++#define vx_mcaps(c) vx_info_mcaps(current->vx_info,(c)) ++ ++ ++#define vx_current_bcaps() \ ++ (((current->vx_info) && !vx_flags(VXF_STATE_SETUP, 0)) ? \ ++ current->vx_info->vx_bcaps : cap_bset) ++ ++ ++#define vx_current_initpid(n) \ ++ (current->vx_info && \ ++ (current->vx_info->vx_initpid == (n))) ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_context.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_context.h +@@ -0,0 +1,240 @@ ++#ifndef _VX_VS_CONTEXT_H ++#define _VX_VS_CONTEXT_H ++ ++#include <linux/kernel.h> ++#include "vserver/debug.h" ++ ++ ++#define get_vx_info(i) __get_vx_info(i,__FILE__,__LINE__,__HERE__) ++ ++static inline struct vx_info *__get_vx_info(struct vx_info *vxi, ++ const char *_file, int _line, void *_here) ++{ ++ if (!vxi) ++ return NULL; ++ ++ vxlprintk(VXD_CBIT(xid, 2), "get_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ __vxh_get_vx_info(vxi, _here); ++ ++ atomic_inc(&vxi->vx_usecnt); ++ return vxi; ++} ++ ++ ++extern void free_vx_info(struct vx_info *); ++ ++#define put_vx_info(i) __put_vx_info(i,__FILE__,__LINE__,__HERE__) ++ ++static inline void __put_vx_info(struct vx_info *vxi, ++ const char *_file, int _line, void *_here) ++{ ++ if (!vxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(xid, 2), "put_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ __vxh_put_vx_info(vxi, _here); ++ ++ if (atomic_dec_and_test(&vxi->vx_usecnt)) ++ free_vx_info(vxi); ++} ++ ++ ++#define init_vx_info(p,i) __init_vx_info(p,i,__FILE__,__LINE__,__HERE__) ++ ++static inline void __init_vx_info(struct vx_info **vxp, struct vx_info *vxi, ++ const char *_file, int _line, void *_here) ++{ ++ if (vxi) { ++ vxlprintk(VXD_CBIT(xid, 3), ++ "init_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ __vxh_init_vx_info(vxi, vxp, _here); ++ ++ atomic_inc(&vxi->vx_usecnt); ++ } ++ *vxp = vxi; ++} ++ ++ ++#define set_vx_info(p,i) __set_vx_info(p,i,__FILE__,__LINE__,__HERE__) ++ ++static inline void __set_vx_info(struct vx_info **vxp, struct vx_info *vxi, ++ const char *_file, int _line, void *_here) ++{ ++ struct vx_info *vxo; ++ ++ if (!vxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(xid, 3), "set_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ __vxh_set_vx_info(vxi, vxp, _here); ++ ++ atomic_inc(&vxi->vx_usecnt); ++ vxo = xchg(vxp, vxi); ++ BUG_ON(vxo); ++} ++ ++ ++#define clr_vx_info(p) __clr_vx_info(p,__FILE__,__LINE__,__HERE__) ++ ++static inline void __clr_vx_info(struct vx_info **vxp, ++ const char *_file, int _line, void *_here) ++{ ++ struct vx_info *vxo; ++ ++ vxo = xchg(vxp, NULL); ++ if (!vxo) ++ return; ++ ++ vxlprintk(VXD_CBIT(xid, 3), "clr_vx_info(%p[#%d.%d])", ++ vxo, vxo?vxo->vx_id:0, ++ vxo?atomic_read(&vxo->vx_usecnt):0, ++ _file, _line); ++ __vxh_clr_vx_info(vxo, vxp, _here); ++ ++ if (atomic_dec_and_test(&vxo->vx_usecnt)) ++ free_vx_info(vxo); ++} ++ ++ ++#define claim_vx_info(v,p) \ ++ __claim_vx_info(v,p,__FILE__,__LINE__,__HERE__) ++ ++static inline void __claim_vx_info(struct vx_info *vxi, ++ struct task_struct *task, ++ const char *_file, int _line, void *_here) ++{ ++ vxlprintk(VXD_CBIT(xid, 3), "claim_vx_info(%p[#%d.%d.%d]) %p", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ vxi?atomic_read(&vxi->vx_tasks):0, ++ task, _file, _line); ++ __vxh_claim_vx_info(vxi, task, _here); ++ ++ atomic_inc(&vxi->vx_tasks); ++} ++ ++ ++extern void unhash_vx_info(struct vx_info *); ++ ++#define release_vx_info(v,p) \ ++ __release_vx_info(v,p,__FILE__,__LINE__,__HERE__) ++ ++static inline void __release_vx_info(struct vx_info *vxi, ++ struct task_struct *task, ++ const char *_file, int _line, void *_here) ++{ ++ vxlprintk(VXD_CBIT(xid, 3), "release_vx_info(%p[#%d.%d.%d]) %p", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ vxi?atomic_read(&vxi->vx_tasks):0, ++ task, _file, _line); ++ __vxh_release_vx_info(vxi, task, _here); ++ ++ might_sleep(); ++ ++ if (atomic_dec_and_test(&vxi->vx_tasks)) ++ unhash_vx_info(vxi); ++} ++ ++ ++#define task_get_vx_info(p) \ ++ __task_get_vx_info(p,__FILE__,__LINE__,__HERE__) ++ ++static inline struct vx_info *__task_get_vx_info(struct task_struct *p, ++ const char *_file, int _line, void *_here) ++{ ++ struct vx_info *vxi; ++ ++ task_lock(p); ++ vxlprintk(VXD_CBIT(xid, 5), "task_get_vx_info(%p)", ++ p, _file, _line); ++ vxi = __get_vx_info(p->vx_info, _file, _line, _here); ++ task_unlock(p); ++ return vxi; ++} ++ ++ ++static inline void __wakeup_vx_info(struct vx_info *vxi) ++{ ++ if (waitqueue_active(&vxi->vx_wait)) ++ wake_up_interruptible(&vxi->vx_wait); ++} ++ ++ ++#define enter_vx_info(v,s) __enter_vx_info(v,s,__FILE__,__LINE__) ++ ++static inline void __enter_vx_info(struct vx_info *vxi, ++ struct vx_info_save *vxis, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(xid, 5), "enter_vx_info(%p[#%d],%p) %p[#%d,%p]", ++ vxi, vxi ? vxi->vx_id : 0, vxis, current, ++ current->xid, current->vx_info, _file, _line); ++ vxis->vxi = xchg(¤t->vx_info, vxi); ++ vxis->xid = current->xid; ++ current->xid = vxi ? vxi->vx_id : 0; ++} ++ ++#define leave_vx_info(s) __leave_vx_info(s,__FILE__,__LINE__) ++ ++static inline void __leave_vx_info(struct vx_info_save *vxis, ++ const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(xid, 5), "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]", ++ vxis, vxis->xid, vxis->vxi, current, ++ current->xid, current->vx_info, _file, _line); ++ xchg(¤t->vx_info, vxis->vxi); ++ current->xid = vxis->xid; ++} ++ ++ ++static inline void __enter_vx_admin(struct vx_info_save *vxis) ++{ ++ vxis->vxi = xchg(¤t->vx_info, NULL); ++ vxis->xid = current->xid; ++ current->xid = 0; ++} ++ ++static inline void __leave_vx_admin(struct vx_info_save *vxis) ++{ ++ if (vxis->vxi) ++ xchg(¤t->vx_info, vxis->vxi); ++ current->xid = vxis->xid; ++} ++ ++extern void exit_vx_info(struct task_struct *); ++ ++ ++static inline ++struct task_struct *vx_child_reaper(struct task_struct *p) ++{ ++ struct vx_info *vxi = p->vx_info; ++ struct task_struct *reaper = child_reaper; ++ ++ if (!vxi) ++ goto out; ++ ++ BUG_ON(!p->vx_info->vx_reaper); ++ ++ /* child reaper for the guest reaper */ ++ if (vxi->vx_reaper == p) ++ goto out; ++ ++ reaper = vxi->vx_reaper; ++out: ++ return reaper; ++} ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_cvirt.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_cvirt.h +@@ -0,0 +1,59 @@ ++#ifndef _VX_VS_CVIRT_H ++#define _VX_VS_CVIRT_H ++ ++#include "vserver/cvirt.h" ++#include "vserver/debug.h" ++ ++ ++/* utsname virtualization */ ++ ++static inline struct new_utsname *vx_new_utsname(void) ++{ ++ if (current->vx_info) ++ return ¤t->vx_info->cvirt.utsname; ++ return &system_utsname; ++} ++ ++#define vx_new_uts(x) ((vx_new_utsname())->x) ++ ++ ++static inline void vx_activate_task(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) { ++ vx_update_load(vxi); ++ atomic_inc(&vxi->cvirt.nr_running); ++ } ++} ++ ++static inline void vx_deactivate_task(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) { ++ vx_update_load(vxi); ++ atomic_dec(&vxi->cvirt.nr_running); ++ } ++} ++ ++static inline void vx_uninterruptible_inc(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) ++ atomic_inc(&vxi->cvirt.nr_uninterruptible); ++} ++ ++static inline void vx_uninterruptible_dec(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) ++ atomic_dec(&vxi->cvirt.nr_uninterruptible); ++} ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_dlimit.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_dlimit.h +@@ -0,0 +1,213 @@ ++#ifndef _VX_VS_DLIMIT_H ++#define _VX_VS_DLIMIT_H ++ ++#include "vserver/dlimit.h" ++#include "vserver/debug.h" ++ ++ ++#define get_dl_info(i) __get_dl_info(i,__FILE__,__LINE__) ++ ++static inline struct dl_info *__get_dl_info(struct dl_info *dli, ++ const char *_file, int _line) ++{ ++ if (!dli) ++ return NULL; ++ vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])", ++ dli, dli?dli->dl_tag:0, dli?atomic_read(&dli->dl_usecnt):0, ++ _file, _line); ++ atomic_inc(&dli->dl_usecnt); ++ return dli; ++} ++ ++ ++#define free_dl_info(i) \ ++ call_rcu(&i->dl_rcu, rcu_free_dl_info); ++ ++#define put_dl_info(i) __put_dl_info(i,__FILE__,__LINE__) ++ ++static inline void __put_dl_info(struct dl_info *dli, ++ const char *_file, int _line) ++{ ++ if (!dli) ++ return; ++ vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])", ++ dli, dli?dli->dl_tag:0, dli?atomic_read(&dli->dl_usecnt):0, ++ _file, _line); ++ if (atomic_dec_and_test(&dli->dl_usecnt)) ++ free_dl_info(dli); ++} ++ ++ ++#define __dlimit_char(d) ((d)?'*':' ') ++ ++static inline int __dl_alloc_space(struct super_block *sb, ++ tag_t tag, dlsize_t nr, const char *file, int line) ++{ ++ struct dl_info *dli = NULL; ++ int ret = 0; ++ ++ if (nr == 0) ++ goto out; ++ dli = locate_dl_info(sb, tag); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ ret = (dli->dl_space_used + nr > dli->dl_space_total); ++ if (!ret) ++ dli->dl_space_used += nr; ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 1), ++ "ALLOC (%p,#%d)%c %lld bytes (%d)", ++ sb, tag, __dlimit_char(dli), (long long)nr, ++ ret, file, line); ++ return ret; ++} ++ ++static inline void __dl_free_space(struct super_block *sb, ++ tag_t tag, dlsize_t nr, const char *_file, int _line) ++{ ++ struct dl_info *dli = NULL; ++ ++ if (nr == 0) ++ goto out; ++ dli = locate_dl_info(sb, tag); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ if (dli->dl_space_used > nr) ++ dli->dl_space_used -= nr; ++ else ++ dli->dl_space_used = 0; ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 1), ++ "FREE (%p,#%d)%c %lld bytes", ++ sb, tag, __dlimit_char(dli), (long long)nr, ++ _file, _line); ++} ++ ++static inline int __dl_alloc_inode(struct super_block *sb, ++ tag_t tag, const char *_file, int _line) ++{ ++ struct dl_info *dli; ++ int ret = 0; ++ ++ dli = locate_dl_info(sb, tag); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ ret = (dli->dl_inodes_used >= dli->dl_inodes_total); ++ if (!ret) ++ dli->dl_inodes_used++; ++#if 0 ++ else ++ vxwprintk("DLIMIT hit (%p,#%d), inode %d>=%d @ %s:%d", ++ sb, tag, ++ dli->dl_inodes_used, dli->dl_inodes_total, ++ file, line); ++#endif ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 0), ++ "ALLOC (%p,#%d)%c inode (%d)", ++ sb, tag, __dlimit_char(dli), ret, _file, _line); ++ return ret; ++} ++ ++static inline void __dl_free_inode(struct super_block *sb, ++ tag_t tag, const char *_file, int _line) ++{ ++ struct dl_info *dli; ++ ++ dli = locate_dl_info(sb, tag); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ if (dli->dl_inodes_used > 1) ++ dli->dl_inodes_used--; ++ else ++ dli->dl_inodes_used = 0; ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 0), ++ "FREE (%p,#%d)%c inode", ++ sb, tag, __dlimit_char(dli), _file, _line); ++} ++ ++static inline void __dl_adjust_block(struct super_block *sb, tag_t tag, ++ unsigned int *free_blocks, unsigned int *root_blocks, ++ const char *_file, int _line) ++{ ++ struct dl_info *dli; ++ uint64_t broot, bfree; ++ ++ dli = locate_dl_info(sb, tag); ++ if (!dli) ++ return; ++ ++ spin_lock(&dli->dl_lock); ++ broot = (dli->dl_space_total - ++ (dli->dl_space_total >> 10) * dli->dl_nrlmult) ++ >> sb->s_blocksize_bits; ++ bfree = (dli->dl_space_total - dli->dl_space_used) ++ >> sb->s_blocksize_bits; ++ spin_unlock(&dli->dl_lock); ++ ++ vxlprintk(VXD_CBIT(dlim, 2), ++ "ADJUST: %lld,%lld on %d,%d [mult=%d]", ++ (long long)bfree, (long long)broot, ++ *free_blocks, *root_blocks, dli->dl_nrlmult, ++ _file, _line); ++ if (free_blocks) { ++ if (*free_blocks > bfree) ++ *free_blocks = bfree; ++ } ++ if (root_blocks) { ++ if (*root_blocks > broot) ++ *root_blocks = broot; ++ } ++ put_dl_info(dli); ++} ++ ++#define DLIMIT_ALLOC_SPACE(in, bytes) \ ++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \ ++ __FILE__, __LINE__ ) ++ ++#define DLIMIT_FREE_SPACE(in, bytes) \ ++ __dl_free_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \ ++ __FILE__, __LINE__ ) ++ ++#define DLIMIT_ALLOC_BLOCK(in, nr) \ ++ __dl_alloc_space((in)->i_sb, (in)->i_tag, \ ++ ((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \ ++ __FILE__, __LINE__ ) ++ ++#define DLIMIT_FREE_BLOCK(in, nr) \ ++ __dl_free_space((in)->i_sb, (in)->i_tag, \ ++ ((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \ ++ __FILE__, __LINE__ ) ++ ++ ++#define DLIMIT_ALLOC_INODE(in) \ ++ __dl_alloc_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ ) ++ ++#define DLIMIT_FREE_INODE(in) \ ++ __dl_free_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ ) ++ ++ ++#define DLIMIT_ADJUST_BLOCK(sb, tag, fb, rb) \ ++ __dl_adjust_block(sb, tag, fb, rb, __FILE__, __LINE__ ) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_limit.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_limit.h +@@ -0,0 +1,120 @@ ++#ifndef _VX_VS_LIMIT_H ++#define _VX_VS_LIMIT_H ++ ++#include "vserver/limit.h" ++#include "vserver/debug.h" ++#include "vserver/limit_int.h" ++ ++ ++#define vx_acc_cres(v,d,p,r) \ ++ __vx_acc_cres(v, r, d, p, __FILE__, __LINE__) ++ ++#define vx_acc_cres_cond(x,d,p,r) \ ++ __vx_acc_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \ ++ r, d, p, __FILE__, __LINE__) ++ ++ ++#define vx_add_cres(v,a,p,r) \ ++ __vx_add_cres(v, r, a, p, __FILE__, __LINE__) ++#define vx_sub_cres(v,a,p,r) vx_add_cres(v,-(a),p,r) ++ ++#define vx_add_cres_cond(x,a,p,r) \ ++ __vx_add_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \ ++ r, a, p, __FILE__, __LINE__) ++#define vx_sub_cres_cond(x,a,p,r) vx_add_cres_cond(x,-(a),p,r) ++ ++ ++/* process and file limits */ ++ ++#define vx_nproc_inc(p) \ ++ vx_acc_cres((p)->vx_info, 1, p, RLIMIT_NPROC) ++ ++#define vx_nproc_dec(p) \ ++ vx_acc_cres((p)->vx_info,-1, p, RLIMIT_NPROC) ++ ++#define vx_files_inc(f) \ ++ vx_acc_cres_cond((f)->f_xid, 1, f, RLIMIT_NOFILE) ++ ++#define vx_files_dec(f) \ ++ vx_acc_cres_cond((f)->f_xid,-1, f, RLIMIT_NOFILE) ++ ++#define vx_locks_inc(l) \ ++ vx_acc_cres_cond((l)->fl_xid, 1, l, RLIMIT_LOCKS) ++ ++#define vx_locks_dec(l) \ ++ vx_acc_cres_cond((l)->fl_xid,-1, l, RLIMIT_LOCKS) ++ ++#define vx_openfd_inc(f) \ ++ vx_acc_cres(current->vx_info, 1, (void *)(long)(f), VLIMIT_OPENFD) ++ ++#define vx_openfd_dec(f) \ ++ vx_acc_cres(current->vx_info,-1, (void *)(long)(f), VLIMIT_OPENFD) ++ ++#define vx_cres_avail(v,n,r) \ ++ __vx_cres_avail(v, r, n, __FILE__, __LINE__) ++ ++ ++#define vx_nproc_avail(n) \ ++ vx_cres_avail(current->vx_info, n, RLIMIT_NPROC) ++ ++#define vx_files_avail(n) \ ++ vx_cres_avail(current->vx_info, n, RLIMIT_NOFILE) ++ ++#define vx_locks_avail(n) \ ++ vx_cres_avail(current->vx_info, n, RLIMIT_LOCKS) ++ ++#define vx_openfd_avail(n) \ ++ vx_cres_avail(current->vx_info, n, VLIMIT_OPENFD) ++ ++ ++/* socket limits */ ++ ++#define vx_sock_inc(s) \ ++ vx_acc_cres((s)->sk_vx_info, 1, s, VLIMIT_NSOCK) ++ ++#define vx_sock_dec(s) \ ++ vx_acc_cres((s)->sk_vx_info,-1, s, VLIMIT_NSOCK) ++ ++#define vx_sock_avail(n) \ ++ vx_cres_avail(current->vx_info, n, VLIMIT_NSOCK) ++ ++ ++/* ipc resource limits */ ++ ++#define vx_ipcmsg_add(v,u,a) \ ++ vx_add_cres(v, a, u, RLIMIT_MSGQUEUE) ++ ++#define vx_ipcmsg_sub(v,u,a) \ ++ vx_sub_cres(v, a, u, RLIMIT_MSGQUEUE) ++ ++#define vx_ipcmsg_avail(v,a) \ ++ vx_cres_avail(v, a, RLIMIT_MSGQUEUE) ++ ++ ++#define vx_ipcshm_add(v,k,a) \ ++ vx_add_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM) ++ ++#define vx_ipcshm_sub(v,k,a) \ ++ vx_sub_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM) ++ ++#define vx_ipcshm_avail(v,a) \ ++ vx_cres_avail(v, a, VLIMIT_SHMEM) ++ ++ ++#define vx_semary_inc(a) \ ++ vx_acc_cres(current->vx_info, 1, a, VLIMIT_SEMARY) ++ ++#define vx_semary_dec(a) \ ++ vx_acc_cres(current->vx_info,-1, a, VLIMIT_SEMARY) ++ ++ ++#define vx_nsems_add(a,n) \ ++ vx_add_cres(current->vx_info, n, a, VLIMIT_NSEMS) ++ ++#define vx_nsems_sub(a,n) \ ++ vx_sub_cres(current->vx_info, n, a, VLIMIT_NSEMS) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_memory.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_memory.h +@@ -0,0 +1,150 @@ ++#ifndef _VX_VS_MEMORY_H ++#define _VX_VS_MEMORY_H ++ ++#include <linux/config.h> ++#include "vserver/limit.h" ++#include "vserver/debug.h" ++#include "vserver/limit_int.h" ++ ++ ++#define __acc_add_long(a,v) (*(v) += (a)) ++#define __acc_inc_long(v) (++*(v)) ++#define __acc_dec_long(v) (--*(v)) ++ ++#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS ++#define __acc_add_atomic(a,v) atomic_long_add(a,v) ++#define __acc_inc_atomic(v) atomic_long_inc(v) ++#define __acc_dec_atomic(v) atomic_long_dec(v) ++#else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ ++#define __acc_add_atomic(a,v) __acc_add_long(a,v) ++#define __acc_inc_atomic(v) __acc_inc_long(v) ++#define __acc_dec_atomic(v) __acc_dec_long(v) ++#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ ++ ++ ++#define vx_acc_page(m,d,v,r) do { \ ++ if ((d) > 0) \ ++ __acc_inc_long(&(m->v)); \ ++ else \ ++ __acc_dec_long(&(m->v)); \ ++ __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__); \ ++} while (0) ++ ++#define vx_acc_page_atomic(m,d,v,r) do { \ ++ if ((d) > 0) \ ++ __acc_inc_atomic(&(m->v)); \ ++ else \ ++ __acc_dec_atomic(&(m->v)); \ ++ __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__); \ ++} while (0) ++ ++ ++#define vx_acc_pages(m,p,v,r) do { \ ++ unsigned long __p = (p); \ ++ __acc_add_long(__p, &(m->v)); \ ++ __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__); \ ++} while (0) ++ ++#define vx_acc_pages_atomic(m,p,v,r) do { \ ++ unsigned long __p = (p); \ ++ __acc_add_atomic(__p, &(m->v)); \ ++ __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__); \ ++} while (0) ++ ++ ++ ++#define vx_acc_vmpage(m,d) \ ++ vx_acc_page(m, d, total_vm, RLIMIT_AS) ++#define vx_acc_vmlpage(m,d) \ ++ vx_acc_page(m, d, locked_vm, RLIMIT_MEMLOCK) ++#define vx_acc_file_rsspage(m,d) \ ++ vx_acc_page_atomic(m, d, _file_rss, RLIMIT_RSS) ++#define vx_acc_anon_rsspage(m,d) \ ++ vx_acc_page_atomic(m, d, _anon_rss, VLIMIT_ANON) ++ ++#define vx_acc_vmpages(m,p) \ ++ vx_acc_pages(m, p, total_vm, RLIMIT_AS) ++#define vx_acc_vmlpages(m,p) \ ++ vx_acc_pages(m, p, locked_vm, RLIMIT_MEMLOCK) ++#define vx_acc_file_rsspages(m,p) \ ++ vx_acc_pages_atomic(m, p, _file_rss, RLIMIT_RSS) ++#define vx_acc_anon_rsspages(m,p) \ ++ vx_acc_pages_atomic(m, p, _anon_rss, VLIMIT_ANON) ++ ++#define vx_pages_add(s,r,p) __vx_add_cres(s, r, p, 0, __FILE__, __LINE__) ++#define vx_pages_sub(s,r,p) vx_pages_add(s, r, -(p)) ++ ++#define vx_vmpages_inc(m) vx_acc_vmpage(m, 1) ++#define vx_vmpages_dec(m) vx_acc_vmpage(m,-1) ++#define vx_vmpages_add(m,p) vx_acc_vmpages(m, p) ++#define vx_vmpages_sub(m,p) vx_acc_vmpages(m,-(p)) ++ ++#define vx_vmlocked_inc(m) vx_acc_vmlpage(m, 1) ++#define vx_vmlocked_dec(m) vx_acc_vmlpage(m,-1) ++#define vx_vmlocked_add(m,p) vx_acc_vmlpages(m, p) ++#define vx_vmlocked_sub(m,p) vx_acc_vmlpages(m,-(p)) ++ ++#define vx_file_rsspages_inc(m) vx_acc_file_rsspage(m, 1) ++#define vx_file_rsspages_dec(m) vx_acc_file_rsspage(m,-1) ++#define vx_file_rsspages_add(m,p) vx_acc_file_rsspages(m, p) ++#define vx_file_rsspages_sub(m,p) vx_acc_file_rsspages(m,-(p)) ++ ++#define vx_anon_rsspages_inc(m) vx_acc_anon_rsspage(m, 1) ++#define vx_anon_rsspages_dec(m) vx_acc_anon_rsspage(m,-1) ++#define vx_anon_rsspages_add(m,p) vx_acc_anon_rsspages(m, p) ++#define vx_anon_rsspages_sub(m,p) vx_acc_anon_rsspages(m,-(p)) ++ ++ ++#define vx_pages_avail(m,p,r) \ ++ __vx_cres_avail((m)->mm_vx_info, r, p, __FILE__, __LINE__) ++ ++#define vx_vmpages_avail(m,p) vx_pages_avail(m, p, RLIMIT_AS) ++#define vx_vmlocked_avail(m,p) vx_pages_avail(m, p, RLIMIT_MEMLOCK) ++#define vx_rsspages_avail(m,p) vx_pages_avail(m, p, RLIMIT_RSS) ++#define vx_anonpages_avail(m,p) vx_pages_avail(m, p, VLIMIT_ANON) ++ ++enum { ++ VXPT_UNKNOWN = 0, ++ VXPT_ANON, ++ VXPT_NONE, ++ VXPT_FILE, ++ VXPT_SWAP, ++ VXPT_WRITE ++}; ++ ++#if 0 ++#define vx_page_fault(mm,vma,type,ret) ++#else ++ ++static inline ++void __vx_page_fault(struct mm_struct *mm, ++ struct vm_area_struct *vma, int type, int ret) ++{ ++ struct vx_info *vxi = mm->mm_vx_info; ++ int what; ++/* ++ static char *page_type[6] = ++ { "UNKNOWN", "ANON","NONE", "FILE", "SWAP", "WRITE" }; ++ static char *page_what[4] = ++ { "FAULT_OOM", "FAULT_SIGBUS", "FAULT_MINOR", "FAULT_MAJOR" }; ++*/ ++ ++ if (!vxi) ++ return; ++ ++ what = (ret & 0x3); ++ ++/* printk("[%d] page[%d][%d] %2x %s %s\n", vxi->vx_id, ++ type, what, ret, page_type[type], page_what[what]); ++*/ ++ if (ret & VM_FAULT_WRITE) ++ what |= 0x4; ++ atomic_inc(&vxi->cacct.page[type][what]); ++} ++ ++#define vx_page_fault(mm,vma,type,ret) __vx_page_fault(mm,vma,type,ret) ++#endif ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_network.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_network.h +@@ -0,0 +1,244 @@ ++#ifndef _NX_VS_NETWORK_H ++#define _NX_VS_NETWORK_H ++ ++#include "vserver/network.h" ++#include "vserver/debug.h" ++ ++ ++#define get_nx_info(i) __get_nx_info(i,__FILE__,__LINE__) ++ ++static inline struct nx_info *__get_nx_info(struct nx_info *nxi, ++ const char *_file, int _line) ++{ ++ if (!nxi) ++ return NULL; ++ ++ vxlprintk(VXD_CBIT(nid, 2), "get_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ atomic_inc(&nxi->nx_usecnt); ++ return nxi; ++} ++ ++ ++extern void free_nx_info(struct nx_info *); ++ ++#define put_nx_info(i) __put_nx_info(i,__FILE__,__LINE__) ++ ++static inline void __put_nx_info(struct nx_info *nxi, const char *_file, int _line) ++{ ++ if (!nxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(nid, 2), "put_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ if (atomic_dec_and_test(&nxi->nx_usecnt)) ++ free_nx_info(nxi); ++} ++ ++ ++#define init_nx_info(p,i) __init_nx_info(p,i,__FILE__,__LINE__) ++ ++static inline void __init_nx_info(struct nx_info **nxp, struct nx_info *nxi, ++ const char *_file, int _line) ++{ ++ if (nxi) { ++ vxlprintk(VXD_CBIT(nid, 3), ++ "init_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ atomic_inc(&nxi->nx_usecnt); ++ } ++ *nxp = nxi; ++} ++ ++ ++#define set_nx_info(p,i) __set_nx_info(p,i,__FILE__,__LINE__) ++ ++static inline void __set_nx_info(struct nx_info **nxp, struct nx_info *nxi, ++ const char *_file, int _line) ++{ ++ struct nx_info *nxo; ++ ++ if (!nxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(nid, 3), "set_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ atomic_inc(&nxi->nx_usecnt); ++ nxo = xchg(nxp, nxi); ++ BUG_ON(nxo); ++} ++ ++#define clr_nx_info(p) __clr_nx_info(p,__FILE__,__LINE__) ++ ++static inline void __clr_nx_info(struct nx_info **nxp, ++ const char *_file, int _line) ++{ ++ struct nx_info *nxo; ++ ++ nxo = xchg(nxp, NULL); ++ if (!nxo) ++ return; ++ ++ vxlprintk(VXD_CBIT(nid, 3), "clr_nx_info(%p[#%d.%d])", ++ nxo, nxo?nxo->nx_id:0, ++ nxo?atomic_read(&nxo->nx_usecnt):0, ++ _file, _line); ++ ++ if (atomic_dec_and_test(&nxo->nx_usecnt)) ++ free_nx_info(nxo); ++} ++ ++ ++#define claim_nx_info(v,p) __claim_nx_info(v,p,__FILE__,__LINE__) ++ ++static inline void __claim_nx_info(struct nx_info *nxi, ++ struct task_struct *task, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(nid, 3), "claim_nx_info(%p[#%d.%d.%d]) %p", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ nxi?atomic_read(&nxi->nx_tasks):0, ++ task, _file, _line); ++ ++ atomic_inc(&nxi->nx_tasks); ++} ++ ++ ++extern void unhash_nx_info(struct nx_info *); ++ ++#define release_nx_info(v,p) __release_nx_info(v,p,__FILE__,__LINE__) ++ ++static inline void __release_nx_info(struct nx_info *nxi, ++ struct task_struct *task, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(nid, 3), "release_nx_info(%p[#%d.%d.%d]) %p", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ nxi?atomic_read(&nxi->nx_tasks):0, ++ task, _file, _line); ++ ++ might_sleep(); ++ ++ if (atomic_dec_and_test(&nxi->nx_tasks)) ++ unhash_nx_info(nxi); ++} ++ ++ ++#define task_get_nx_info(i) __task_get_nx_info(i,__FILE__,__LINE__) ++ ++static __inline__ struct nx_info *__task_get_nx_info(struct task_struct *p, ++ const char *_file, int _line) ++{ ++ struct nx_info *nxi; ++ ++ task_lock(p); ++ vxlprintk(VXD_CBIT(nid, 5), "task_get_nx_info(%p)", ++ p, _file, _line); ++ nxi = __get_nx_info(p->nx_info, _file, _line); ++ task_unlock(p); ++ return nxi; ++} ++ ++ ++#define nx_task_nid(t) ((t)->nid) ++ ++#define nx_current_nid() nx_task_nid(current) ++ ++#define nx_check(c,m) __nx_check(nx_current_nid(),c,m) ++ ++#define nx_weak_check(c,m) ((m) ? nx_check(c,m) : 1) ++ ++ ++/* ++ * check current context for ADMIN/WATCH and ++ * optionally against supplied argument ++ */ ++static inline int __nx_check(nid_t cid, nid_t id, unsigned int mode) ++{ ++ if (mode & NX_ARG_MASK) { ++ if ((mode & NX_IDENT) && ++ (id == cid)) ++ return 1; ++ } ++ if (mode & NX_ATR_MASK) { ++ if ((mode & NX_DYNAMIC) && ++ (id >= MIN_D_CONTEXT) && ++ (id <= MAX_S_CONTEXT)) ++ return 1; ++ if ((mode & NX_STATIC) && ++ (id > 1) && (id < MIN_D_CONTEXT)) ++ return 1; ++ } ++ return (((mode & NX_ADMIN) && (cid == 0)) || ++ ((mode & NX_WATCH) && (cid == 1)) || ++ ((mode & NX_BLEND) && (id == 1)) || ++ ((mode & NX_HOSTID) && (id == 0))); ++} ++ ++ ++#define __nx_state(v) ((v) ? ((v)->nx_state) : 0) ++ ++#define nx_info_state(v,m) (__nx_state(v) & (m)) ++ ++ ++#define __nx_flags(v) ((v) ? (v)->nx_flags : 0) ++ ++#define nx_current_flags() __nx_flags(current->nx_info) ++ ++#define nx_info_flags(v,m,f) \ ++ vx_check_flags(__nx_flags(v),(m),(f)) ++ ++#define task_nx_flags(t,m,f) \ ++ ((t) && nx_info_flags((t)->nx_info, (m), (f))) ++ ++#define nx_flags(m,f) nx_info_flags(current->nx_info,(m),(f)) ++ ++ ++/* context caps */ ++ ++#define __nx_ncaps(v) ((v) ? (v)->nx_ncaps : 0) ++ ++#define nx_current_ncaps() __nx_ncaps(current->nx_info) ++ ++#define nx_info_ncaps(v,c) (__nx_ncaps(v) & (c)) ++ ++#define nx_ncaps(c) nx_info_ncaps(current->nx_info,(c)) ++ ++ ++static inline int addr_in_nx_info(struct nx_info *nxi, uint32_t addr) ++{ ++ int n,i; ++ ++ if (!nxi) ++ return 1; ++ ++ n = nxi->nbipv4; ++ if (n && (nxi->ipv4[0] == 0)) ++ return 1; ++ for (i=0; i<n; i++) { ++ if (nxi->ipv4[i] == addr) ++ return 1; ++ } ++ return 0; ++} ++ ++static inline void exit_nx_info(struct task_struct *p) ++{ ++ if (p->nx_info) ++ release_nx_info(p->nx_info, p); ++} ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_pid.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_pid.h +@@ -0,0 +1,57 @@ ++#ifndef _VX_VS_PID_H ++#define _VX_VS_PID_H ++ ++#include "vserver/debug.h" ++ ++ ++/* pid faking stuff */ ++ ++ ++#define vx_info_map_pid(v,p) \ ++ __vx_info_map_pid((v), (p), __FUNC__, __FILE__, __LINE__) ++#define vx_info_map_tgid(v,p) vx_info_map_pid(v,p) ++#define vx_map_pid(p) vx_info_map_pid(current->vx_info, p) ++#define vx_map_tgid(p) vx_map_pid(p) ++ ++static inline int __vx_info_map_pid(struct vx_info *vxi, int pid, ++ const char *func, const char *file, int line) ++{ ++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) { ++ vxfprintk(VXD_CBIT(cvirt, 2), ++ "vx_map_tgid: %p/%llx: %d -> %d", ++ vxi, (long long)vxi->vx_flags, pid, ++ (pid && pid == vxi->vx_initpid)?1:pid, ++ func, file, line); ++ if (pid == 0) ++ return 0; ++ if (pid == vxi->vx_initpid) ++ return 1; ++ } ++ return pid; ++} ++ ++#define vx_info_rmap_pid(v,p) \ ++ __vx_info_rmap_pid((v), (p), __FUNC__, __FILE__, __LINE__) ++#define vx_rmap_pid(p) vx_info_rmap_pid(current->vx_info, p) ++#define vx_rmap_tgid(p) vx_rmap_pid(p) ++ ++static inline int __vx_info_rmap_pid(struct vx_info *vxi, int pid, ++ const char *func, const char *file, int line) ++{ ++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) { ++ vxfprintk(VXD_CBIT(cvirt, 2), ++ "vx_rmap_tgid: %p/%llx: %d -> %d", ++ vxi, (long long)vxi->vx_flags, pid, ++ (pid == 1)?vxi->vx_initpid:pid, ++ func, file, line); ++ if ((pid == 1) && vxi->vx_initpid) ++ return vxi->vx_initpid; ++ if (pid == vxi->vx_initpid) ++ return ~0U; ++ } ++ return pid; ++} ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_sched.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_sched.h +@@ -0,0 +1,110 @@ ++#ifndef _VX_VS_SCHED_H ++#define _VX_VS_SCHED_H ++ ++#include <linux/config.h> ++#include "vserver/sched.h" ++ ++ ++#define VAVAVOOM_RATIO 50 ++ ++#define MAX_PRIO_BIAS 20 ++#define MIN_PRIO_BIAS -20 ++ ++ ++#ifdef CONFIG_VSERVER_HARDCPU ++ ++/* ++ * effective_prio - return the priority that is based on the static ++ * priority but is modified by bonuses/penalties. ++ * ++ * We scale the actual sleep average [0 .... MAX_SLEEP_AVG] ++ * into a -4 ... 0 ... +4 bonus/penalty range. ++ * ++ * Additionally, we scale another amount based on the number of ++ * CPU tokens currently held by the context, if the process is ++ * part of a context (and the appropriate SCHED flag is set). ++ * This ranges from -5 ... 0 ... +15, quadratically. ++ * ++ * So, the total bonus is -9 .. 0 .. +19 ++ * We use ~50% of the full 0...39 priority range so that: ++ * ++ * 1) nice +19 interactive tasks do not preempt nice 0 CPU hogs. ++ * 2) nice -20 CPU hogs do not get preempted by nice 0 tasks. ++ * unless that context is far exceeding its CPU allocation. ++ * ++ * Both properties are important to certain workloads. ++ */ ++static inline ++int vx_effective_vavavoom(struct _vx_sched_pc *sched_pc, int max_prio) ++{ ++ int vavavoom, max; ++ ++ /* lots of tokens = lots of vavavoom ++ * no tokens = no vavavoom */ ++ if ((vavavoom = sched_pc->tokens) >= 0) { ++ max = sched_pc->tokens_max; ++ vavavoom = max - vavavoom; ++ max = max * max; ++ vavavoom = max_prio * VAVAVOOM_RATIO / 100 ++ * (vavavoom*vavavoom - (max >> 2)) / max; ++ return vavavoom; ++ } ++ return 0; ++} ++ ++ ++static inline ++int vx_adjust_prio(struct task_struct *p, int prio, int max_user) ++{ ++ struct vx_info *vxi = p->vx_info; ++ ++ if (!vxi) ++ return 0; ++ ++ if (vx_info_flags(vxi, VXF_SCHED_PRIO, 0)) { ++ struct _vx_sched_pc *sched_pc = &vx_cpu(vxi, sched_pc); ++ int vavavoom = vx_effective_vavavoom(sched_pc, max_user); ++ ++ vxi->sched.vavavoom = vavavoom; ++ prio += vavavoom; ++ } ++ prio += vxi->sched.prio_bias; ++ return prio; ++} ++ ++#else /* !CONFIG_VSERVER_HARDCPU */ ++ ++static inline ++int vx_adjust_prio(struct task_struct *p, int prio, int max_user) ++{ ++ struct vx_info *vxi = p->vx_info; ++ ++ if (!vxi) ++ return 0; ++ ++ prio += vxi->sched.prio_bias; ++ return prio; ++} ++ ++#endif /* CONFIG_VSERVER_HARDCPU */ ++ ++ ++static inline void vx_account_user(struct vx_info *vxi, ++ cputime_t cputime, int nice) ++{ ++ if (!vxi) ++ return; ++ vx_cpu(vxi, sched_pc).user_ticks += cputime; ++} ++ ++static inline void vx_account_system(struct vx_info *vxi, ++ cputime_t cputime, int idle) ++{ ++ if (!vxi) ++ return; ++ vx_cpu(vxi, sched_pc).sys_ticks += cputime; ++} ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_socket.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_socket.h +@@ -0,0 +1,57 @@ ++#ifndef _VX_VS_SOCKET_H ++#define _VX_VS_SOCKET_H ++ ++#include "vserver/debug.h" ++ ++ ++/* socket accounting */ ++ ++#include <linux/socket.h> ++ ++static inline int vx_sock_type(int family) ++{ ++ int type = 4; ++ ++ if (family > 0 && family < 3) ++ type = family; ++ else if (family == PF_INET6) ++ type = 3; ++ return type; ++} ++ ++#define vx_acc_sock(v,f,p,s) \ ++ __vx_acc_sock((v), (f), (p), (s), __FILE__, __LINE__) ++ ++static inline void __vx_acc_sock(struct vx_info *vxi, ++ int family, int pos, int size, char *file, int line) ++{ ++ if (vxi) { ++ int type = vx_sock_type(family); ++ ++ atomic_inc(&vxi->cacct.sock[type][pos].count); ++ atomic_add(size, &vxi->cacct.sock[type][pos].total); ++ } ++} ++ ++#define vx_sock_recv(sk,s) \ ++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 0, (s)) ++#define vx_sock_send(sk,s) \ ++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 1, (s)) ++#define vx_sock_fail(sk,s) \ ++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 2, (s)) ++ ++ ++#define sock_vx_init(s) do { \ ++ (s)->sk_xid = 0; \ ++ (s)->sk_vx_info = NULL; \ ++ } while (0) ++ ++#define sock_nx_init(s) do { \ ++ (s)->sk_nid = 0; \ ++ (s)->sk_nx_info = NULL; \ ++ } while (0) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vs_tag.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vs_tag.h +@@ -0,0 +1,45 @@ ++#ifndef _VX_VS_TAG_H ++#define _VX_VS_TAG_H ++ ++#include <linux/kernel.h> ++#include <linux/vserver/tag.h> ++ ++/* check conditions */ ++ ++#define DX_ADMIN 0x0001 ++#define DX_WATCH 0x0002 ++#define DX_HOSTID 0x0008 ++ ++#define DX_IDENT 0x0010 ++ ++#define DX_ARG_MASK 0x0010 ++ ++ ++#define dx_task_tag(t) ((t)->xid) ++ ++#define dx_current_tag() dx_task_tag(current) ++ ++#define dx_check(c,m) __dx_check(dx_current_tag(),c,m) ++ ++#define dx_weak_check(c,m) ((m) ? dx_check(c,m) : 1) ++ ++ ++/* ++ * check current context for ADMIN/WATCH and ++ * optionally against supplied argument ++ */ ++static inline int __dx_check(tag_t cid, tag_t id, unsigned int mode) ++{ ++ if (mode & DX_ARG_MASK) { ++ if ((mode & DX_IDENT) && ++ (id == cid)) ++ return 1; ++ } ++ return (((mode & DX_ADMIN) && (cid == 0)) || ++ ((mode & DX_WATCH) && (cid == 1)) || ++ ((mode & DX_HOSTID) && (id == 0))); ++} ++ ++#else ++#warning duplicate inclusion ++#endif +Index: linux-2.6.16/include/linux/vserver/context.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/context.h +@@ -0,0 +1,201 @@ ++#ifndef _VX_CONTEXT_H ++#define _VX_CONTEXT_H ++ ++#include <linux/config.h> ++#include <linux/types.h> ++ ++ ++#define MAX_S_CONTEXT 65535 /* Arbitrary limit */ ++ ++#ifdef CONFIG_VSERVER_DYNAMIC_IDS ++#define MIN_D_CONTEXT 49152 /* dynamic contexts start here */ ++#else ++#define MIN_D_CONTEXT 65536 ++#endif ++ ++#define VX_DYNAMIC_ID ((uint32_t)-1) /* id for dynamic context */ ++ ++/* context flags */ ++ ++#define VXF_INFO_LOCK 0x00000001 ++#define VXF_INFO_SCHED 0x00000002 ++#define VXF_INFO_NPROC 0x00000004 ++#define VXF_INFO_PRIVATE 0x00000008 ++ ++#define VXF_INFO_INIT 0x00000010 ++#define VXF_INFO_HIDE 0x00000020 ++#define VXF_INFO_ULIMIT 0x00000040 ++#define VXF_INFO_NSPACE 0x00000080 ++ ++#define VXF_SCHED_HARD 0x00000100 ++#define VXF_SCHED_PRIO 0x00000200 ++#define VXF_SCHED_PAUSE 0x00000400 ++ ++#define VXF_VIRT_MEM 0x00010000 ++#define VXF_VIRT_UPTIME 0x00020000 ++#define VXF_VIRT_CPU 0x00040000 ++#define VXF_VIRT_LOAD 0x00080000 ++ ++#define VXF_HIDE_MOUNT 0x01000000 ++#define VXF_HIDE_NETIF 0x02000000 ++ ++#define VXF_STATE_SETUP (1ULL<<32) ++#define VXF_STATE_INIT (1ULL<<33) ++ ++#define VXF_SC_HELPER (1ULL<<36) ++#define VXF_REBOOT_KILL (1ULL<<37) ++#define VXF_PERSISTENT (1ULL<<38) ++ ++#define VXF_FORK_RSS (1ULL<<48) ++#define VXF_PROLIFIC (1ULL<<49) ++ ++#define VXF_IGNEG_NICE (1ULL<<52) ++ ++#define VXF_ONE_TIME (0x0003ULL<<32) ++ ++#define VXF_INIT_SET (VXF_STATE_SETUP|VXF_STATE_INIT) ++ ++ ++/* context migration */ ++ ++#define VXM_SET_INIT 0x00000001 ++#define VXM_SET_REAPER 0x00000002 ++ ++/* context caps */ ++ ++#define VXC_CAP_MASK 0x00000000 ++ ++#define VXC_SET_UTSNAME 0x00000001 ++#define VXC_SET_RLIMIT 0x00000002 ++ ++#define VXC_RAW_ICMP 0x00000100 ++#define VXC_SYSLOG 0x00001000 ++ ++#define VXC_SECURE_MOUNT 0x00010000 ++#define VXC_SECURE_REMOUNT 0x00020000 ++#define VXC_BINARY_MOUNT 0x00040000 ++ ++#define VXC_QUOTA_CTL 0x00100000 ++ ++ ++/* context state changes */ ++ ++enum { ++ VSC_STARTUP = 1, ++ VSC_SHUTDOWN, ++ ++ VSC_NETUP, ++ VSC_NETDOWN, ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/list.h> ++#include <linux/spinlock.h> ++#include <linux/rcupdate.h> ++ ++#include "limit_def.h" ++#include "sched_def.h" ++#include "cvirt_def.h" ++ ++struct _vx_info_pc { ++ struct _vx_sched_pc sched_pc; ++ struct _vx_cvirt_pc cvirt_pc; ++}; ++ ++struct vx_info { ++ struct hlist_node vx_hlist; /* linked list of contexts */ ++ xid_t vx_id; /* context id */ ++ atomic_t vx_usecnt; /* usage count */ ++ atomic_t vx_tasks; /* tasks count */ ++ struct vx_info *vx_parent; /* parent context */ ++ int vx_state; /* context state */ ++ ++ struct namespace *vx_namespace; /* private namespace */ ++ struct fs_struct *vx_fs; /* private namespace fs */ ++ uint64_t vx_flags; /* context flags */ ++ uint64_t vx_bcaps; /* bounding caps (system) */ ++ uint64_t vx_ccaps; /* context caps (vserver) */ ++ ++ struct task_struct *vx_reaper; /* guest reaper process */ ++ pid_t vx_initpid; /* PID of guest init */ ++ ++ wait_queue_head_t vx_wait; /* context exit waitqueue */ ++ ++ struct _vx_limit limit; /* vserver limits */ ++ struct _vx_sched sched; /* vserver scheduler */ ++ struct _vx_cvirt cvirt; /* virtual/bias stuff */ ++ struct _vx_cacct cacct; /* context accounting */ ++ ++#ifndef CONFIG_SMP ++ struct _vx_info_pc info_pc; /* per cpu data */ ++#else ++ struct _vx_info_pc *ptr_pc; /* per cpu array */ ++#endif ++ ++ char vx_name[65]; /* vserver name */ ++}; ++ ++#ifndef CONFIG_SMP ++#define vx_ptr_pc(vxi) (&(vxi)->info_pc) ++#define vx_per_cpu(vxi, v, id) per_cpu_ptr(vx_ptr_pc(vxi), id)->v ++#else ++#define vx_ptr_pc(vxi) ((vxi)->ptr_pc) ++#define vx_per_cpu(vxi, v, id) per_cpu_ptr(vx_ptr_pc(vxi), id)->v ++#endif ++ ++#define vx_cpu(vxi, v) vx_per_cpu(vxi, v, smp_processor_id()) ++ ++ ++struct vx_info_save { ++ struct vx_info *vxi; ++ xid_t xid; ++}; ++ ++ ++/* status flags */ ++ ++#define VXS_HASHED 0x0001 ++#define VXS_PAUSED 0x0010 ++#define VXS_SHUTDOWN 0x0100 ++#define VXS_RELEASED 0x8000 ++ ++/* check conditions */ ++ ++#define VX_ADMIN 0x0001 ++#define VX_WATCH 0x0002 ++#define VX_HIDE 0x0004 ++#define VX_HOSTID 0x0008 ++ ++#define VX_IDENT 0x0010 ++#define VX_EQUIV 0x0020 ++#define VX_PARENT 0x0040 ++#define VX_CHILD 0x0080 ++ ++#define VX_ARG_MASK 0x00F0 ++ ++#define VX_DYNAMIC 0x0100 ++#define VX_STATIC 0x0200 ++ ++#define VX_ATR_MASK 0x0F00 ++ ++ ++extern void claim_vx_info(struct vx_info *, struct task_struct *); ++extern void release_vx_info(struct vx_info *, struct task_struct *); ++ ++extern struct vx_info *lookup_vx_info(int); ++extern struct vx_info *lookup_or_create_vx_info(int); ++ ++extern int get_xid_list(int, unsigned int *, int); ++extern int xid_is_hashed(xid_t); ++ ++extern int vx_migrate_task(struct task_struct *, struct vx_info *); ++ ++extern long vs_state_change(struct vx_info *, unsigned int); ++ ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_CONTEXT_H */ ++#warning duplicate inclusion ++#endif /* _VX_CONTEXT_H */ +Index: linux-2.6.16/include/linux/vserver/context_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/context_cmd.h +@@ -0,0 +1,84 @@ ++#ifndef _VX_CONTEXT_CMD_H ++#define _VX_CONTEXT_CMD_H ++ ++ ++/* vinfo commands */ ++ ++#define VCMD_task_xid VC_CMD(VINFO, 1, 0) ++ ++#ifdef __KERNEL__ ++extern int vc_task_xid(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++#define VCMD_vx_info VC_CMD(VINFO, 5, 0) ++ ++struct vcmd_vx_info_v0 { ++ uint32_t xid; ++ uint32_t initpid; ++ /* more to come */ ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_vx_info(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* context commands */ ++ ++#define VCMD_ctx_create_v0 VC_CMD(VPROC, 1, 0) ++#define VCMD_ctx_create VC_CMD(VPROC, 1, 1) ++ ++struct vcmd_ctx_create { ++ uint64_t flagword; ++}; ++ ++#define VCMD_ctx_migrate_v0 VC_CMD(PROCMIG, 1, 0) ++#define VCMD_ctx_migrate VC_CMD(PROCMIG, 1, 1) ++ ++struct vcmd_ctx_migrate { ++ uint64_t flagword; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_ctx_create(uint32_t, void __user *); ++extern int vc_ctx_migrate(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* flag commands */ ++ ++#define VCMD_get_cflags VC_CMD(FLAGS, 1, 0) ++#define VCMD_set_cflags VC_CMD(FLAGS, 2, 0) ++ ++struct vcmd_ctx_flags_v0 { ++ uint64_t flagword; ++ uint64_t mask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_cflags(uint32_t, void __user *); ++extern int vc_set_cflags(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* context caps commands */ ++ ++#define VCMD_get_ccaps VC_CMD(FLAGS, 3, 0) ++#define VCMD_set_ccaps VC_CMD(FLAGS, 4, 0) ++ ++struct vcmd_ctx_caps_v0 { ++ uint64_t bcaps; ++ uint64_t ccaps; ++ uint64_t cmask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_ccaps(uint32_t, void __user *); ++extern int vc_set_ccaps(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_CONTEXT_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/cvirt.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/cvirt.h +@@ -0,0 +1,26 @@ ++#ifndef _VX_CVIRT_H ++#define _VX_CVIRT_H ++ ++ ++#ifdef __KERNEL__ ++ ++struct timespec; ++ ++void vx_vsi_uptime(struct timespec *, struct timespec *); ++ ++ ++struct vx_info; ++ ++void vx_update_load(struct vx_info *); ++ ++ ++int vx_uts_virt_handler(struct ctl_table *ctl, int write, xid_t xid, ++ void **datap, size_t *lenp); ++ ++ ++int vx_do_syslog(int, char __user *, int); ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_CVIRT_H */ ++#warning duplicate inclusion ++#endif /* _VX_CVIRT_H */ +Index: linux-2.6.16/include/linux/vserver/cvirt_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/cvirt_cmd.h +@@ -0,0 +1,35 @@ ++#ifndef _VX_CVIRT_CMD_H ++#define _VX_CVIRT_CMD_H ++ ++ ++/* virtual host info name commands */ ++ ++#define VCMD_set_vhi_name VC_CMD(VHOST, 1, 0) ++#define VCMD_get_vhi_name VC_CMD(VHOST, 2, 0) ++ ++struct vcmd_vhi_name_v0 { ++ uint32_t field; ++ char name[65]; ++}; ++ ++ ++enum vhi_name_field { ++ VHIN_CONTEXT=0, ++ VHIN_SYSNAME, ++ VHIN_NODENAME, ++ VHIN_RELEASE, ++ VHIN_VERSION, ++ VHIN_MACHINE, ++ VHIN_DOMAINNAME, ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/compiler.h> ++ ++extern int vc_set_vhi_name(uint32_t, void __user *); ++extern int vc_get_vhi_name(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_CVIRT_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/cvirt_def.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/cvirt_def.h +@@ -0,0 +1,120 @@ ++#ifndef _VX_CVIRT_DEF_H ++#define _VX_CVIRT_DEF_H ++ ++#include <linux/config.h> ++#include <linux/jiffies.h> ++#include <linux/utsname.h> ++#include <linux/spinlock.h> ++#include <linux/wait.h> ++#include <linux/time.h> ++#include <asm/atomic.h> ++ ++ ++struct _vx_usage_stat { ++ uint64_t user; ++ uint64_t nice; ++ uint64_t system; ++ uint64_t softirq; ++ uint64_t irq; ++ uint64_t idle; ++ uint64_t iowait; ++}; ++ ++struct _vx_syslog { ++ wait_queue_head_t log_wait; ++ spinlock_t logbuf_lock; /* lock for the log buffer */ ++ ++ unsigned long log_start; /* next char to be read by syslog() */ ++ unsigned long con_start; /* next char to be sent to consoles */ ++ unsigned long log_end; /* most-recently-written-char + 1 */ ++ unsigned long logged_chars; /* #chars since last read+clear operation */ ++ ++ char log_buf[1024]; ++}; ++ ++ ++/* context sub struct */ ++ ++struct _vx_cvirt { ++// int max_threads; /* maximum allowed threads */ ++ atomic_t nr_threads; /* number of current threads */ ++ atomic_t nr_running; /* number of running threads */ ++ atomic_t nr_uninterruptible; /* number of uninterruptible threads */ ++ ++ atomic_t nr_onhold; /* processes on hold */ ++ uint32_t onhold_last; /* jiffies when put on hold */ ++ ++ struct timespec bias_idle; ++ struct timespec bias_uptime; /* context creation point */ ++ uint64_t bias_clock; /* offset in clock_t */ ++ ++ struct new_utsname utsname; ++ ++ spinlock_t load_lock; /* lock for the load averages */ ++ atomic_t load_updates; /* nr of load updates done so far */ ++ uint32_t load_last; /* last time load was cacled */ ++ uint32_t load[3]; /* load averages 1,5,15 */ ++ ++ atomic_t total_forks; /* number of forks so far */ ++ ++ struct _vx_syslog syslog; ++}; ++ ++struct _vx_cvirt_pc { ++ struct _vx_usage_stat cpustat; ++}; ++ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++static inline void __dump_vx_cvirt(struct _vx_cvirt *cvirt) ++{ ++ printk("\t_vx_cvirt:\n"); ++ printk("\t threads: %4d, %4d, %4d, %4d\n", ++ atomic_read(&cvirt->nr_threads), ++ atomic_read(&cvirt->nr_running), ++ atomic_read(&cvirt->nr_uninterruptible), ++ atomic_read(&cvirt->nr_onhold)); ++ /* add rest here */ ++ printk("\t total_forks = %d\n", atomic_read(&cvirt->total_forks)); ++} ++ ++#endif ++ ++ ++struct _vx_sock_acc { ++ atomic_t count; ++ atomic_t total; ++}; ++ ++/* context sub struct */ ++ ++struct _vx_cacct { ++ struct _vx_sock_acc sock[5][3]; ++ atomic_t slab[8]; ++ atomic_t page[6][8]; ++}; ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++static inline void __dump_vx_cacct(struct _vx_cacct *cacct) ++{ ++ int i,j; ++ ++ printk("\t_vx_cacct:"); ++ for (i=0; i<5; i++) { ++ struct _vx_sock_acc *ptr = cacct->sock[i]; ++ ++ printk("\t [%d] =", i); ++ for (j=0; j<3; j++) { ++ printk(" [%d] = %8d, %8d", j, ++ atomic_read(&ptr[j].count), ++ atomic_read(&ptr[j].total)); ++ } ++ printk("\n"); ++ } ++} ++ ++#endif ++ ++#endif /* _VX_CVIRT_DEF_H */ +Index: linux-2.6.16/include/linux/vserver/debug.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/debug.h +@@ -0,0 +1,305 @@ ++#ifndef _VX_DEBUG_H ++#define _VX_DEBUG_H ++ ++#include <linux/config.h> ++ ++ ++#define VXD_CBIT(n,m) (vx_debug_ ## n & (1 << (m))) ++#define VXD_CMIN(n,m) (vx_debug_ ## n > (m)) ++#define VXD_MASK(n,m) (vx_debug_ ## n & (m)) ++ ++#define VXD_QPOS(v,p) (((uint32_t)(v) >> ((p)*8)) & 0xFF) ++#define VXD_QUAD(v) VXD_QPOS(v,0), VXD_QPOS(v,1), \ ++ VXD_QPOS(v,2), VXD_QPOS(v,3) ++#define VXF_QUAD "%u.%u.%u.%u" ++ ++#define VXD_DEV(d) (d), (d)->bd_inode->i_ino, \ ++ imajor((d)->bd_inode), iminor((d)->bd_inode) ++#define VXF_DEV "%p[%lu,%d:%d]" ++ ++ ++#define __FUNC__ __func__ ++ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++extern unsigned int vx_debug_switch; ++extern unsigned int vx_debug_xid; ++extern unsigned int vx_debug_nid; ++extern unsigned int vx_debug_tag; ++extern unsigned int vx_debug_net; ++extern unsigned int vx_debug_limit; ++extern unsigned int vx_debug_cres; ++extern unsigned int vx_debug_dlim; ++extern unsigned int vx_debug_quota; ++extern unsigned int vx_debug_cvirt; ++extern unsigned int vx_debug_misc; ++ ++ ++#define VX_LOGLEVEL "vxD: " ++#define VX_WARNLEVEL KERN_WARNING "vxW: " ++ ++#define vxdprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_LOGLEVEL f "\n" , ##x); \ ++ } while (0) ++ ++#define vxlprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_LOGLEVEL f " @%s:%d\n", x); \ ++ } while (0) ++ ++#define vxfprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \ ++ } while (0) ++ ++ ++#define vxwprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_WARNLEVEL f "\n" , ##x); \ ++ } while (0) ++ ++ ++#define vxd_path(d,m) \ ++ ({ static char _buffer[PATH_MAX]; \ ++ d_path((d), (m), _buffer, sizeof(_buffer)); }) ++ ++ ++void dump_vx_info(struct vx_info *, int); ++void dump_vx_info_inactive(int); ++ ++#else /* CONFIG_VSERVER_DEBUG */ ++ ++#define vx_debug_switch 0 ++#define vx_debug_xid 0 ++#define vx_debug_nid 0 ++#define vx_debug_tag 0 ++#define vx_debug_net 0 ++#define vx_debug_limit 0 ++#define vx_debug_cres 0 ++#define vx_debug_dlim 0 ++#define vx_debug_cvirt 0 ++ ++#define vxdprintk(x...) do { } while (0) ++#define vxlprintk(x...) do { } while (0) ++#define vxfprintk(x...) do { } while (0) ++#define vxwprintk(x...) do { } while (0) ++ ++#define vxd_path "<none>" ++ ++ ++#endif /* CONFIG_VSERVER_DEBUG */ ++ ++ ++/* history stuff */ ++ ++#ifdef CONFIG_VSERVER_HISTORY ++ ++ ++extern unsigned volatile int vxh_active; ++ ++struct _vxhe_vxi { ++ struct vx_info *ptr; ++ unsigned xid; ++ unsigned usecnt; ++ unsigned tasks; ++}; ++ ++struct _vxhe_set_clr { ++ void *data; ++}; ++ ++struct _vxhe_loc_lookup { ++ unsigned arg; ++}; ++ ++enum { ++ VXH_UNUSED=0, ++ VXH_THROW_OOPS=1, ++ ++ VXH_GET_VX_INFO, ++ VXH_PUT_VX_INFO, ++ VXH_INIT_VX_INFO, ++ VXH_SET_VX_INFO, ++ VXH_CLR_VX_INFO, ++ VXH_CLAIM_VX_INFO, ++ VXH_RELEASE_VX_INFO, ++ VXH_ALLOC_VX_INFO, ++ VXH_DEALLOC_VX_INFO, ++ VXH_HASH_VX_INFO, ++ VXH_UNHASH_VX_INFO, ++ VXH_LOC_VX_INFO, ++ VXH_LOOKUP_VX_INFO, ++ VXH_CREATE_VX_INFO, ++}; ++ ++struct _vx_hist_entry { ++ void *loc; ++ unsigned short seq; ++ unsigned short type; ++ struct _vxhe_vxi vxi; ++ union { ++ struct _vxhe_set_clr sc; ++ struct _vxhe_loc_lookup ll; ++ }; ++}; ++ ++struct _vx_hist_entry *vxh_advance(void *loc); ++ ++ ++static inline ++void __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi) ++{ ++ entry->vxi.ptr = vxi; ++ if (vxi) { ++ entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt); ++ entry->vxi.tasks = atomic_read(&vxi->vx_tasks); ++ entry->vxi.xid = vxi->vx_id; ++ } ++} ++ ++ ++#define __HERE__ current_text_addr() ++ ++#define __VXH_BODY(__type, __data, __here) \ ++ struct _vx_hist_entry *entry; \ ++ \ ++ preempt_disable(); \ ++ entry = vxh_advance(__here); \ ++ __data; \ ++ entry->type = __type; \ ++ preempt_enable(); ++ ++ ++ /* pass vxi only */ ++ ++#define __VXH_SMPL \ ++ __vxh_copy_vxi(entry, vxi) ++ ++static inline ++void __vxh_smpl(struct vx_info *vxi, int __type, void *__here) ++{ ++ __VXH_BODY(__type, __VXH_SMPL, __here) ++} ++ ++ /* pass vxi and data (void *) */ ++ ++#define __VXH_DATA \ ++ __vxh_copy_vxi(entry, vxi); \ ++ entry->sc.data = data ++ ++static inline ++void __vxh_data(struct vx_info *vxi, void *data, ++ int __type, void *__here) ++{ ++ __VXH_BODY(__type, __VXH_DATA, __here) ++} ++ ++ /* pass vxi and arg (long) */ ++ ++#define __VXH_LONG \ ++ __vxh_copy_vxi(entry, vxi); \ ++ entry->ll.arg = arg ++ ++static inline ++void __vxh_long(struct vx_info *vxi, long arg, ++ int __type, void *__here) ++{ ++ __VXH_BODY(__type, __VXH_LONG, __here) ++} ++ ++ ++static inline ++void __vxh_throw_oops(void *__here) ++{ ++ __VXH_BODY(VXH_THROW_OOPS, {}, __here); ++ /* prevent further acquisition */ ++ vxh_active = 0; ++} ++ ++ ++#define vxh_throw_oops() __vxh_throw_oops(__HERE__); ++ ++#define __vxh_get_vx_info(v,h) __vxh_smpl(v, VXH_GET_VX_INFO, h); ++#define __vxh_put_vx_info(v,h) __vxh_smpl(v, VXH_PUT_VX_INFO, h); ++ ++#define __vxh_init_vx_info(v,d,h) \ ++ __vxh_data(v,d, VXH_INIT_VX_INFO, h); ++#define __vxh_set_vx_info(v,d,h) \ ++ __vxh_data(v,d, VXH_SET_VX_INFO, h); ++#define __vxh_clr_vx_info(v,d,h) \ ++ __vxh_data(v,d, VXH_CLR_VX_INFO, h); ++ ++#define __vxh_claim_vx_info(v,d,h) \ ++ __vxh_data(v,d, VXH_CLAIM_VX_INFO, h); ++#define __vxh_release_vx_info(v,d,h) \ ++ __vxh_data(v,d, VXH_RELEASE_VX_INFO, h); ++ ++#define vxh_alloc_vx_info(v) \ ++ __vxh_smpl(v, VXH_ALLOC_VX_INFO, __HERE__); ++#define vxh_dealloc_vx_info(v) \ ++ __vxh_smpl(v, VXH_DEALLOC_VX_INFO, __HERE__); ++ ++#define vxh_hash_vx_info(v) \ ++ __vxh_smpl(v, VXH_HASH_VX_INFO, __HERE__); ++#define vxh_unhash_vx_info(v) \ ++ __vxh_smpl(v, VXH_UNHASH_VX_INFO, __HERE__); ++ ++#define vxh_loc_vx_info(v,l) \ ++ __vxh_long(v,l, VXH_LOC_VX_INFO, __HERE__); ++#define vxh_lookup_vx_info(v,l) \ ++ __vxh_long(v,l, VXH_LOOKUP_VX_INFO, __HERE__); ++#define vxh_create_vx_info(v,l) \ ++ __vxh_long(v,l, VXH_CREATE_VX_INFO, __HERE__); ++ ++extern void vxh_dump_history(void); ++ ++ ++#else /* CONFIG_VSERVER_HISTORY */ ++ ++#define __HERE__ 0 ++ ++#define vxh_throw_oops() do { } while (0) ++ ++#define __vxh_get_vx_info(v,h) do { } while (0) ++#define __vxh_put_vx_info(v,h) do { } while (0) ++ ++#define __vxh_init_vx_info(v,d,h) do { } while (0) ++#define __vxh_set_vx_info(v,d,h) do { } while (0) ++#define __vxh_clr_vx_info(v,d,h) do { } while (0) ++ ++#define __vxh_claim_vx_info(v,d,h) do { } while (0) ++#define __vxh_release_vx_info(v,d,h) do { } while (0) ++ ++#define vxh_alloc_vx_info(v) do { } while (0) ++#define vxh_dealloc_vx_info(v) do { } while (0) ++ ++#define vxh_hash_vx_info(v) do { } while (0) ++#define vxh_unhash_vx_info(v) do { } while (0) ++ ++#define vxh_loc_vx_info(a,v) do { } while (0) ++#define vxh_lookup_vx_info(a,v) do { } while (0) ++#define vxh_create_vx_info(a,v) do { } while (0) ++ ++#define vxh_dump_history() do { } while (0) ++ ++ ++#endif /* CONFIG_VSERVER_HISTORY */ ++ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++#define vxd_assert_lock(l) assert_spin_locked(l) ++#define vxd_assert(c,f,x...) vxlprintk(!(c), \ ++ "assertion [" f "] failed.", ##x, __FILE__, __LINE__) ++#else ++#define vxd_assert_lock(l) do { } while (0) ++#define vxd_assert(c,f,x...) do { } while (0) ++#endif ++ ++ ++#endif /* _VX_DEBUG_H */ +Index: linux-2.6.16/include/linux/vserver/debug_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/debug_cmd.h +@@ -0,0 +1,14 @@ ++#ifndef _VX_DEBUG_CMD_H ++#define _VX_DEBUG_CMD_H ++ ++ ++/* debug commands */ ++ ++#define VCMD_dump_history VC_CMD(DEBUG, 1, 0) ++ ++#ifdef __KERNEL__ ++ ++extern int vc_dump_history(uint32_t); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_DEBUG_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/dlimit.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/dlimit.h +@@ -0,0 +1,53 @@ ++#ifndef _VX_DLIMIT_H ++#define _VX_DLIMIT_H ++ ++#include "switch.h" ++ ++ ++#ifdef __KERNEL__ ++ ++/* keep in sync with CDLIM_INFINITY */ ++ ++#define DLIM_INFINITY (~0ULL) ++ ++#include <linux/spinlock.h> ++ ++struct super_block; ++ ++struct dl_info { ++ struct hlist_node dl_hlist; /* linked list of contexts */ ++ struct rcu_head dl_rcu; /* the rcu head */ ++ tag_t dl_tag; /* context tag */ ++ atomic_t dl_usecnt; /* usage count */ ++ atomic_t dl_refcnt; /* reference count */ ++ ++ struct super_block *dl_sb; /* associated superblock */ ++ ++ spinlock_t dl_lock; /* protect the values */ ++ ++ unsigned long long dl_space_used; /* used space in bytes */ ++ unsigned long long dl_space_total; /* maximum space in bytes */ ++ unsigned long dl_inodes_used; /* used inodes */ ++ unsigned long dl_inodes_total; /* maximum inodes */ ++ ++ unsigned int dl_nrlmult; /* non root limit mult */ ++}; ++ ++struct rcu_head; ++ ++extern void rcu_free_dl_info(struct rcu_head *); ++extern void unhash_dl_info(struct dl_info *); ++ ++extern struct dl_info *locate_dl_info(struct super_block *, tag_t); ++ ++ ++struct kstatfs; ++ ++extern void vx_vsi_statfs(struct super_block *, struct kstatfs *); ++ ++typedef uint64_t dlsize_t; ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_DLIMIT_H */ ++#warning duplicate inclusion ++#endif /* _VX_DLIMIT_H */ +Index: linux-2.6.16/include/linux/vserver/dlimit_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/dlimit_cmd.h +@@ -0,0 +1,74 @@ ++#ifndef _VX_DLIMIT_CMD_H ++#define _VX_DLIMIT_CMD_H ++ ++#include <linux/config.h> ++ ++ ++/* dlimit vserver commands */ ++ ++#define VCMD_add_dlimit VC_CMD(DLIMIT, 1, 0) ++#define VCMD_rem_dlimit VC_CMD(DLIMIT, 2, 0) ++ ++#define VCMD_set_dlimit VC_CMD(DLIMIT, 5, 0) ++#define VCMD_get_dlimit VC_CMD(DLIMIT, 6, 0) ++ ++struct vcmd_ctx_dlimit_base_v0 { ++ const char __user *name; ++ uint32_t flags; ++}; ++ ++struct vcmd_ctx_dlimit_v0 { ++ const char __user *name; ++ uint32_t space_used; /* used space in kbytes */ ++ uint32_t space_total; /* maximum space in kbytes */ ++ uint32_t inodes_used; /* used inodes */ ++ uint32_t inodes_total; /* maximum inodes */ ++ uint32_t reserved; /* reserved for root in % */ ++ uint32_t flags; ++}; ++ ++#define CDLIM_UNSET ((uint32_t)0UL) ++#define CDLIM_INFINITY ((uint32_t)~0UL) ++#define CDLIM_KEEP ((uint32_t)~1UL) ++ ++#ifdef __KERNEL__ ++ ++#ifdef CONFIG_COMPAT ++ ++struct vcmd_ctx_dlimit_base_v0_x32 { ++ compat_uptr_t name_ptr; ++ uint32_t flags; ++}; ++ ++struct vcmd_ctx_dlimit_v0_x32 { ++ compat_uptr_t name_ptr; ++ uint32_t space_used; /* used space in kbytes */ ++ uint32_t space_total; /* maximum space in kbytes */ ++ uint32_t inodes_used; /* used inodes */ ++ uint32_t inodes_total; /* maximum inodes */ ++ uint32_t reserved; /* reserved for root in % */ ++ uint32_t flags; ++}; ++ ++#endif /* CONFIG_COMPAT */ ++ ++#include <linux/compiler.h> ++ ++extern int vc_add_dlimit(uint32_t, void __user *); ++extern int vc_rem_dlimit(uint32_t, void __user *); ++ ++extern int vc_set_dlimit(uint32_t, void __user *); ++extern int vc_get_dlimit(uint32_t, void __user *); ++ ++#ifdef CONFIG_COMPAT ++ ++extern int vc_add_dlimit_x32(uint32_t, void __user *); ++extern int vc_rem_dlimit_x32(uint32_t, void __user *); ++ ++extern int vc_set_dlimit_x32(uint32_t, void __user *); ++extern int vc_get_dlimit_x32(uint32_t, void __user *); ++ ++#endif /* CONFIG_COMPAT */ ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_DLIMIT_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/global.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/global.h +@@ -0,0 +1,8 @@ ++#ifndef _VX_GLOBAL_H ++#define _VX_GLOBAL_H ++ ++ ++extern atomic_t vx_global_ctotal; ++extern atomic_t vx_global_cactive; ++ ++#endif /* _VX_GLOBAL_H */ +Index: linux-2.6.16/include/linux/vserver/inode.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/inode.h +@@ -0,0 +1,40 @@ ++#ifndef _VX_INODE_H ++#define _VX_INODE_H ++ ++ ++#define IATTR_TAG 0x01000000 ++ ++#define IATTR_ADMIN 0x00000001 ++#define IATTR_WATCH 0x00000002 ++#define IATTR_HIDE 0x00000004 ++#define IATTR_FLAGS 0x00000007 ++ ++#define IATTR_BARRIER 0x00010000 ++#define IATTR_IUNLINK 0x00020000 ++#define IATTR_IMMUTABLE 0x00040000 ++ ++#ifdef __KERNEL__ ++ ++#include <linux/config.h> ++ ++ ++#ifdef CONFIG_VSERVER_PROC_SECURE ++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN | IATTR_HIDE ) ++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN ) ++#else ++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN ) ++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN ) ++#endif ++ ++#define vx_hide_check(c,m) (((m) & IATTR_HIDE) ? vx_check(c,m) : 1) ++ ++#endif /* __KERNEL__ */ ++ ++/* inode ioctls */ ++ ++#define FIOC_GETXFLG _IOR('x', 5, long) ++#define FIOC_SETXFLG _IOW('x', 6, long) ++ ++#else /* _VX_INODE_H */ ++#warning duplicate inclusion ++#endif /* _VX_INODE_H */ +Index: linux-2.6.16/include/linux/vserver/inode_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/inode_cmd.h +@@ -0,0 +1,61 @@ ++#ifndef _VX_INODE_CMD_H ++#define _VX_INODE_CMD_H ++ ++ ++/* inode vserver commands */ ++ ++#define VCMD_get_iattr_v0 VC_CMD(INODE, 1, 0) ++#define VCMD_set_iattr_v0 VC_CMD(INODE, 2, 0) ++ ++#define VCMD_get_iattr VC_CMD(INODE, 1, 1) ++#define VCMD_set_iattr VC_CMD(INODE, 2, 1) ++ ++struct vcmd_ctx_iattr_v0 { ++ /* device handle in id */ ++ uint64_t ino; ++ uint32_t xid; ++ uint32_t flags; ++ uint32_t mask; ++}; ++ ++struct vcmd_ctx_iattr_v1 { ++ const char __user *name; ++ uint32_t xid; ++ uint32_t flags; ++ uint32_t mask; ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/config.h> ++ ++ ++#ifdef CONFIG_COMPAT ++ ++struct vcmd_ctx_iattr_v1_x32 { ++ compat_uptr_t name_ptr; ++ uint32_t xid; ++ uint32_t flags; ++ uint32_t mask; ++}; ++ ++#endif /* CONFIG_COMPAT */ ++ ++#include <linux/compiler.h> ++ ++extern int vc_get_iattr_v0(uint32_t, void __user *); ++extern int vc_set_iattr_v0(uint32_t, void __user *); ++ ++extern int vc_get_iattr(uint32_t, void __user *); ++extern int vc_set_iattr(uint32_t, void __user *); ++ ++#ifdef CONFIG_COMPAT ++ ++extern int vc_get_iattr_x32(uint32_t, void __user *); ++extern int vc_set_iattr_x32(uint32_t, void __user *); ++ ++#endif /* CONFIG_COMPAT */ ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_INODE_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/legacy.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/legacy.h +@@ -0,0 +1,49 @@ ++#ifndef _VX_LEGACY_H ++#define _VX_LEGACY_H ++ ++#include "switch.h" ++ ++ ++/* compatibiliy vserver commands */ ++ ++#define VCMD_new_s_context VC_CMD(COMPAT, 1, 1) ++#define VCMD_set_ipv4root VC_CMD(COMPAT, 2, 3) ++ ++#define VCMD_create_context VC_CMD(VSETUP, 1, 0) ++ ++/* compatibiliy vserver arguments */ ++ ++struct vcmd_new_s_context_v1 { ++ uint32_t remove_cap; ++ uint32_t flags; ++}; ++ ++struct vcmd_set_ipv4root_v3 { ++ /* number of pairs in id */ ++ uint32_t broadcast; ++ struct { ++ uint32_t ip; ++ uint32_t mask; ++ } nx_mask_pair[NB_IPV4ROOT]; ++}; ++ ++ ++#define VX_INFO_LOCK 1 /* Can't request a new vx_id */ ++#define VX_INFO_NPROC 4 /* Limit number of processes in a context */ ++#define VX_INFO_PRIVATE 8 /* Noone can join this security context */ ++#define VX_INFO_INIT 16 /* This process wants to become the */ ++ /* logical process 1 of the security */ ++ /* context */ ++#define VX_INFO_HIDEINFO 32 /* Hide some information in /proc */ ++#define VX_INFO_ULIMIT 64 /* Use ulimit of the current process */ ++ /* to become the global limits */ ++ /* of the context */ ++#define VX_INFO_NAMESPACE 128 /* save private namespace */ ++ ++ ++#ifdef __KERNEL__ ++extern int vc_new_s_context(uint32_t, void __user *); ++extern int vc_set_ipv4root(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LEGACY_H */ +Index: linux-2.6.16/include/linux/vserver/limit.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/limit.h +@@ -0,0 +1,63 @@ ++#ifndef _VX_LIMIT_H ++#define _VX_LIMIT_H ++ ++ ++#define VLIMIT_NSOCK 16 ++#define VLIMIT_OPENFD 17 ++#define VLIMIT_ANON 18 ++#define VLIMIT_SHMEM 19 ++#define VLIMIT_SEMARY 20 ++#define VLIMIT_NSEMS 21 ++ ++#ifdef __KERNEL__ ++ ++/* keep in sync with CRLIM_INFINITY */ ++ ++#define VLIM_INFINITY (~0ULL) ++ ++#ifndef RLIM_INFINITY ++#warning RLIM_INFINITY is undefined ++#endif ++ ++#define __rlim_val(l,r,v) ((l)->res[(r)].v) ++ ++#define __rlim_soft(l,r) __rlim_val(l,r,soft) ++#define __rlim_hard(l,r) __rlim_val(l,r,hard) ++ ++#define __rlim_rcur(l,r) __rlim_val(l,r,rcur) ++#define __rlim_rmin(l,r) __rlim_val(l,r,rmin) ++#define __rlim_rmax(l,r) __rlim_val(l,r,rmax) ++ ++#define __rlim_lhit(l,r) __rlim_val(l,r,lhit) ++#define __rlim_hit(l,r) atomic_inc(&__rlim_lhit(l,r)) ++ ++typedef atomic_long_t rlim_atomic_t; ++typedef unsigned long rlim_t; ++ ++#define __rlim_get(l,r) atomic_long_read(&__rlim_rcur(l,r)) ++#define __rlim_set(l,r,v) atomic_long_set(&__rlim_rcur(l,r), v) ++#define __rlim_inc(l,r) atomic_long_inc(&__rlim_rcur(l,r)) ++#define __rlim_dec(l,r) atomic_long_dec(&__rlim_rcur(l,r)) ++#define __rlim_add(l,r,v) atomic_long_add(v, &__rlim_rcur(l,r)) ++#define __rlim_sub(l,r,v) atomic_long_sub(v, &__rlim_rcur(l,r)) ++ ++ ++#if (RLIM_INFINITY == VLIM_INFINITY) ++#define VX_VLIM(r) ((long long)(long)(r)) ++#define VX_RLIM(v) ((rlim_t)(v)) ++#else ++#define VX_VLIM(r) (((r) == RLIM_INFINITY) \ ++ ? VLIM_INFINITY : (long long)(r)) ++#define VX_RLIM(v) (((v) == VLIM_INFINITY) \ ++ ? RLIM_INFINITY : (rlim_t)(v)) ++#endif ++ ++struct sysinfo; ++ ++void vx_vsi_meminfo(struct sysinfo *); ++void vx_vsi_swapinfo(struct sysinfo *); ++ ++#define NUM_LIMITS 24 ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LIMIT_H */ +Index: linux-2.6.16/include/linux/vserver/limit_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/limit_cmd.h +@@ -0,0 +1,37 @@ ++#ifndef _VX_LIMIT_CMD_H ++#define _VX_LIMIT_CMD_H ++ ++ ++/* rlimit vserver commands */ ++ ++#define VCMD_get_rlimit VC_CMD(RLIMIT, 1, 0) ++#define VCMD_set_rlimit VC_CMD(RLIMIT, 2, 0) ++#define VCMD_get_rlimit_mask VC_CMD(RLIMIT, 3, 0) ++ ++struct vcmd_ctx_rlimit_v0 { ++ uint32_t id; ++ uint64_t minimum; ++ uint64_t softlimit; ++ uint64_t maximum; ++}; ++ ++struct vcmd_ctx_rlimit_mask_v0 { ++ uint32_t minimum; ++ uint32_t softlimit; ++ uint32_t maximum; ++}; ++ ++#define CRLIM_UNSET (0ULL) ++#define CRLIM_INFINITY (~0ULL) ++#define CRLIM_KEEP (~1ULL) ++ ++#ifdef __KERNEL__ ++ ++#include <linux/compiler.h> ++ ++extern int vc_get_rlimit(uint32_t, void __user *); ++extern int vc_set_rlimit(uint32_t, void __user *); ++extern int vc_get_rlimit_mask(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LIMIT_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/limit_def.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/limit_def.h +@@ -0,0 +1,48 @@ ++#ifndef _VX_LIMIT_DEF_H ++#define _VX_LIMIT_DEF_H ++ ++#include <linux/config.h> ++#include <asm/atomic.h> ++#include <asm/resource.h> ++ ++#include "limit.h" ++ ++ ++struct _vx_res_limit { ++ rlim_t soft; /* Context soft limit */ ++ rlim_t hard; /* Context hard limit */ ++ ++ rlim_atomic_t rcur; /* Current value */ ++ rlim_t rmin; /* Context minimum */ ++ rlim_t rmax; /* Context maximum */ ++ ++ atomic_t lhit; /* Limit hits */ ++}; ++ ++/* context sub struct */ ++ ++struct _vx_limit { ++ struct _vx_res_limit res[NUM_LIMITS]; ++}; ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++static inline void __dump_vx_limit(struct _vx_limit *limit) ++{ ++ int i; ++ ++ printk("\t_vx_limit:"); ++ for (i=0; i<NUM_LIMITS; i++) { ++ printk("\t [%2d] = %8lu %8lu/%8lu, %8ld/%8ld, %8d\n", ++ i, (unsigned long)__rlim_get(limit, i), ++ (unsigned long)__rlim_rmin(limit, i), ++ (unsigned long)__rlim_rmax(limit, i), ++ (long)__rlim_soft(limit, i), ++ (long)__rlim_hard(limit, i), ++ atomic_read(&__rlim_lhit(limit, i))); ++ } ++} ++ ++#endif ++ ++#endif /* _VX_LIMIT_DEF_H */ +Index: linux-2.6.16/include/linux/vserver/limit_int.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/limit_int.h +@@ -0,0 +1,83 @@ ++#ifndef _VX_LIMIT_INT_H ++#define _VX_LIMIT_INT_H ++ ++ ++#ifdef __KERNEL__ ++ ++#define VXD_RCRES_COND(r) VXD_CBIT(cres, (r)) ++#define VXD_RLIMIT_COND(r) VXD_CBIT(limit, (r)) ++ ++extern const char *vlimit_name[NUM_LIMITS]; ++ ++static inline void __vx_acc_cres(struct vx_info *vxi, ++ int res, int dir, void *_data, char *_file, int _line) ++{ ++ if (VXD_RCRES_COND(res)) ++ vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5ld%s (%p)", ++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res, ++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0), ++ (dir > 0) ? "++" : "--", _data, _file, _line); ++ if (!vxi) ++ return; ++ ++ if (dir > 0) ++ __rlim_inc(&vxi->limit, res); ++ else ++ __rlim_dec(&vxi->limit, res); ++} ++ ++static inline void __vx_add_cres(struct vx_info *vxi, ++ int res, int amount, void *_data, char *_file, int _line) ++{ ++ if (VXD_RCRES_COND(res)) ++ vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5ld += %5d (%p)", ++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res, ++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0), ++ amount, _data, _file, _line); ++ if (amount == 0) ++ return; ++ if (!vxi) ++ return; ++ __rlim_add(&vxi->limit, res, amount); ++} ++ ++static inline int __vx_cres_avail(struct vx_info *vxi, ++ int res, int num, char *_file, int _line) ++{ ++ rlim_t value; ++ ++ if (VXD_RLIMIT_COND(res)) ++ vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld/%5ld > %5ld + %5d", ++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res, ++ (vxi ? (long)__rlim_soft(&vxi->limit, res) : -1), ++ (vxi ? (long)__rlim_hard(&vxi->limit, res) : -1), ++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0), ++ num, _file, _line); ++ if (num == 0) ++ return 1; ++ if (!vxi) ++ return 1; ++ ++ value = __rlim_get(&vxi->limit, res); ++ ++ if (value > __rlim_rmax(&vxi->limit, res)) ++ __rlim_rmax(&vxi->limit, res) = value; ++ else if (value < __rlim_rmin(&vxi->limit, res)) ++ __rlim_rmin(&vxi->limit, res) = value; ++ ++ if (__rlim_soft(&vxi->limit, res) == RLIM_INFINITY) ++ return -1; ++ if (value + num <= __rlim_soft(&vxi->limit, res)) ++ return -1; ++ ++ if (__rlim_hard(&vxi->limit, res) == RLIM_INFINITY) ++ return 1; ++ if (value + num <= __rlim_hard(&vxi->limit, res)) ++ return 1; ++ ++ __rlim_hit(&vxi->limit, res); ++ return 0; ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LIMIT_INT_H */ +Index: linux-2.6.16/include/linux/vserver/namespace.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/namespace.h +@@ -0,0 +1,15 @@ ++#ifndef _VX_NAMESPACE_H ++#define _VX_NAMESPACE_H ++ ++ ++#include <linux/types.h> ++ ++struct vx_info; ++struct namespace; ++struct fs_struct; ++ ++extern int vx_set_namespace(struct vx_info *, struct namespace *, struct fs_struct *); ++ ++#else /* _VX_NAMESPACE_H */ ++#warning duplicate inclusion ++#endif /* _VX_NAMESPACE_H */ +Index: linux-2.6.16/include/linux/vserver/namespace_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/namespace_cmd.h +@@ -0,0 +1,19 @@ ++#ifndef _VX_NAMESPACE_CMD_H ++#define _VX_NAMESPACE_CMD_H ++ ++ ++#define VCMD_enter_namespace VC_CMD(PROCALT, 1, 0) ++#define VCMD_cleanup_namespace VC_CMD(PROCALT, 2, 0) ++ ++#define VCMD_set_namespace_v0 VC_CMD(PROCALT, 3, 0) ++#define VCMD_set_namespace VC_CMD(PROCALT, 3, 1) ++ ++ ++#ifdef __KERNEL__ ++ ++extern int vc_enter_namespace(uint32_t, void __user *); ++extern int vc_cleanup_namespace(uint32_t, void __user *); ++extern int vc_set_namespace(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_NAMESPACE_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/network.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/network.h +@@ -0,0 +1,139 @@ ++#ifndef _VX_NETWORK_H ++#define _VX_NETWORK_H ++ ++#include <linux/types.h> ++ ++ ++#define MAX_N_CONTEXT 65535 /* Arbitrary limit */ ++ ++#define NX_DYNAMIC_ID ((uint32_t)-1) /* id for dynamic context */ ++ ++#define NB_IPV4ROOT 16 ++ ++ ++/* network flags */ ++ ++#define NXF_STATE_SETUP (1ULL<<32) ++ ++#define NXF_SC_HELPER (1ULL<<36) ++#define NXF_PERSISTENT (1ULL<<38) ++ ++#define NXF_ONE_TIME (0x0001ULL<<32) ++ ++#define NXF_INIT_SET (0) ++ ++ ++/* address types */ ++ ++#define NXA_TYPE_IPV4 1 ++#define NXA_TYPE_IPV6 2 ++ ++#define NXA_MOD_BCAST (1<<8) ++ ++#define NXA_TYPE_ANY (~0) ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/list.h> ++#include <linux/spinlock.h> ++#include <linux/rcupdate.h> ++#include <asm/atomic.h> ++ ++ ++struct nx_info { ++ struct hlist_node nx_hlist; /* linked list of nxinfos */ ++ nid_t nx_id; /* vnet id */ ++ atomic_t nx_usecnt; /* usage count */ ++ atomic_t nx_tasks; /* tasks count */ ++ int nx_state; /* context state */ ++ ++ uint64_t nx_flags; /* network flag word */ ++ uint64_t nx_ncaps; /* network capabilities */ ++ ++ int nbipv4; ++ __u32 ipv4[NB_IPV4ROOT]; /* Process can only bind to these IPs */ ++ /* The first one is used to connect */ ++ /* and for bind any service */ ++ /* The other must be used explicity */ ++ __u32 mask[NB_IPV4ROOT]; /* Netmask for each ipv4 */ ++ /* Used to select the proper source */ ++ /* address for sockets */ ++ __u32 v4_bcast; /* Broadcast address to receive UDP */ ++ ++ char nx_name[65]; /* network context name */ ++}; ++ ++ ++/* status flags */ ++ ++#define NXS_HASHED 0x0001 ++#define NXS_SHUTDOWN 0x0100 ++#define NXS_RELEASED 0x8000 ++ ++/* check conditions */ ++ ++#define NX_ADMIN 0x0001 ++#define NX_WATCH 0x0002 ++#define NX_BLEND 0x0004 ++#define NX_HOSTID 0x0008 ++ ++#define NX_IDENT 0x0010 ++#define NX_EQUIV 0x0020 ++#define NX_PARENT 0x0040 ++#define NX_CHILD 0x0080 ++ ++#define NX_ARG_MASK 0x00F0 ++ ++#define NX_DYNAMIC 0x0100 ++#define NX_STATIC 0x0200 ++ ++#define NX_ATR_MASK 0x0F00 ++ ++ ++extern struct nx_info *lookup_nx_info(int); ++ ++extern int get_nid_list(int, unsigned int *, int); ++extern int nid_is_hashed(nid_t); ++ ++extern int nx_migrate_task(struct task_struct *, struct nx_info *); ++ ++extern long vs_net_change(struct nx_info *, unsigned int); ++ ++struct in_ifaddr; ++struct net_device; ++ ++#ifdef CONFIG_INET ++int ifa_in_nx_info(struct in_ifaddr *, struct nx_info *); ++int dev_in_nx_info(struct net_device *, struct nx_info *); ++ ++#else /* CONFIG_INET */ ++static inline ++int ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n) ++{ ++ return 1; ++} ++ ++static inline ++int dev_in_nx_info(struct net_device *d, struct nx_info *n) ++{ ++ return 1; ++} ++#endif /* CONFIG_INET */ ++ ++struct sock; ++ ++#ifdef CONFIG_INET ++int nx_addr_conflict(struct nx_info *, uint32_t, struct sock *); ++#else /* CONFIG_INET */ ++static inline ++int nx_addr_conflict(struct nx_info *n, uint32_t a, struct sock *s) ++{ ++ return 1; ++} ++#endif /* CONFIG_INET */ ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_NETWORK_H */ ++#warning duplicate inclusion ++#endif /* _VX_NETWORK_H */ +Index: linux-2.6.16/include/linux/vserver/network_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/network_cmd.h +@@ -0,0 +1,89 @@ ++#ifndef _VX_NETWORK_CMD_H ++#define _VX_NETWORK_CMD_H ++ ++ ++/* vinfo commands */ ++ ++#define VCMD_task_nid VC_CMD(VINFO, 2, 0) ++ ++#ifdef __KERNEL__ ++extern int vc_task_nid(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++#define VCMD_nx_info VC_CMD(VINFO, 6, 0) ++ ++struct vcmd_nx_info_v0 { ++ uint32_t nid; ++ /* more to come */ ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_nx_info(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++#define VCMD_net_create_v0 VC_CMD(VNET, 1, 0) ++#define VCMD_net_create VC_CMD(VNET, 1, 1) ++ ++struct vcmd_net_create { ++ uint64_t flagword; ++}; ++ ++#define VCMD_net_migrate VC_CMD(NETMIG, 1, 0) ++ ++#define VCMD_net_add VC_CMD(NETALT, 1, 0) ++#define VCMD_net_remove VC_CMD(NETALT, 2, 0) ++ ++struct vcmd_net_addr_v0 { ++ uint16_t type; ++ uint16_t count; ++ uint32_t ip[4]; ++ uint32_t mask[4]; ++ /* more to come */ ++}; ++ ++ ++#ifdef __KERNEL__ ++extern int vc_net_create(uint32_t, void __user *); ++extern int vc_net_migrate(uint32_t, void __user *); ++ ++extern int vc_net_add(uint32_t, void __user *); ++extern int vc_net_remove(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* flag commands */ ++ ++#define VCMD_get_nflags VC_CMD(FLAGS, 5, 0) ++#define VCMD_set_nflags VC_CMD(FLAGS, 6, 0) ++ ++struct vcmd_net_flags_v0 { ++ uint64_t flagword; ++ uint64_t mask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_nflags(uint32_t, void __user *); ++extern int vc_set_nflags(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* network caps commands */ ++ ++#define VCMD_get_ncaps VC_CMD(FLAGS, 7, 0) ++#define VCMD_set_ncaps VC_CMD(FLAGS, 8, 0) ++ ++struct vcmd_net_caps_v0 { ++ uint64_t ncaps; ++ uint64_t cmask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_ncaps(uint32_t, void __user *); ++extern int vc_set_ncaps(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_CONTEXT_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/sched.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/sched.h +@@ -0,0 +1,26 @@ ++#ifndef _VX_SCHED_H ++#define _VX_SCHED_H ++ ++ ++#ifdef __KERNEL__ ++ ++struct timespec; ++ ++void vx_vsi_uptime(struct timespec *, struct timespec *); ++ ++ ++struct vx_info; ++ ++void vx_update_load(struct vx_info *); ++ ++ ++int vx_tokens_recalc(struct _vx_sched_pc *, ++ unsigned long *, unsigned long *, int [2]); ++ ++void vx_update_sched_param(struct _vx_sched *sched, ++ struct _vx_sched_pc *sched_pc); ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_SCHED_H */ ++#warning duplicate inclusion ++#endif /* _VX_SCHED_H */ +Index: linux-2.6.16/include/linux/vserver/sched_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/sched_cmd.h +@@ -0,0 +1,69 @@ ++#ifndef _VX_SCHED_CMD_H ++#define _VX_SCHED_CMD_H ++ ++ ++/* sched vserver commands */ ++ ++#define VCMD_set_sched_v2 VC_CMD(SCHED, 1, 2) ++#define VCMD_set_sched_v3 VC_CMD(SCHED, 1, 3) ++#define VCMD_set_sched VC_CMD(SCHED, 1, 4) ++ ++struct vcmd_set_sched_v2 { ++ int32_t fill_rate; ++ int32_t interval; ++ int32_t tokens; ++ int32_t tokens_min; ++ int32_t tokens_max; ++ uint64_t cpu_mask; ++}; ++ ++struct vcmd_set_sched_v3 { ++ uint32_t set_mask; ++ int32_t fill_rate; ++ int32_t interval; ++ int32_t tokens; ++ int32_t tokens_min; ++ int32_t tokens_max; ++ int32_t priority_bias; ++}; ++ ++struct vcmd_set_sched_v4 { ++ uint32_t set_mask; ++ int32_t fill_rate; ++ int32_t interval; ++ int32_t tokens; ++ int32_t tokens_min; ++ int32_t tokens_max; ++ int32_t prio_bias; ++ int32_t cpu_id; ++ int32_t bucket_id; ++}; ++ ++ ++#define VXSM_FILL_RATE 0x0001 ++#define VXSM_INTERVAL 0x0002 ++#define VXSM_FILL_RATE2 0x0004 ++#define VXSM_INTERVAL2 0x0008 ++#define VXSM_TOKENS 0x0010 ++#define VXSM_TOKENS_MIN 0x0020 ++#define VXSM_TOKENS_MAX 0x0040 ++#define VXSM_PRIO_BIAS 0x0100 ++#define VXSM_IDLE_TIME 0x0200 ++ ++#define VXSM_V3_MASK 0x0173 ++ ++#define VXSM_CPU_ID 0x1000 ++#define VXSM_BUCKET_ID 0x2000 ++ ++#define SCHED_KEEP (-2) /* only for v2 */ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/compiler.h> ++ ++extern int vc_set_sched_v2(uint32_t, void __user *); ++extern int vc_set_sched_v3(uint32_t, void __user *); ++extern int vc_set_sched(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_SCHED_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/sched_def.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/sched_def.h +@@ -0,0 +1,68 @@ ++#ifndef _VX_SCHED_DEF_H ++#define _VX_SCHED_DEF_H ++ ++#include <linux/config.h> ++#include <linux/spinlock.h> ++#include <linux/jiffies.h> ++#include <linux/cpumask.h> ++#include <asm/atomic.h> ++#include <asm/param.h> ++ ++ ++/* context sub struct */ ++ ++struct _vx_sched { ++ spinlock_t tokens_lock; /* lock for token bucket */ ++ ++ int tokens; /* number of CPU tokens */ ++ int fill_rate[2]; /* Fill rate: add X tokens... */ ++ int interval[2]; /* Divisor: per Y jiffies */ ++ int tokens_min; /* Limit: minimum for unhold */ ++ int tokens_max; /* Limit: no more than N tokens */ ++ ++ unsigned update_mask; /* which features should be updated */ ++ cpumask_t update; /* CPUs which should update */ ++ ++ int prio_bias; /* bias offset for priority */ ++ int vavavoom; /* last calculated vavavoom */ ++}; ++ ++struct _vx_sched_pc { ++ int tokens; /* number of CPU tokens */ ++ int flags; /* bucket flags */ ++ ++ int fill_rate[2]; /* Fill rate: add X tokens... */ ++ int interval[2]; /* Divisor: per Y jiffies */ ++ int tokens_min; /* Limit: minimum for unhold */ ++ int tokens_max; /* Limit: no more than N tokens */ ++ ++ unsigned long norm_time; /* last time accounted */ ++ unsigned long idle_time; /* non linear time for fair sched */ ++ unsigned long token_time; /* token time for accounting */ ++ unsigned long onhold; /* jiffies when put on hold */ ++ ++ uint64_t user_ticks; /* token tick events */ ++ uint64_t sys_ticks; /* token tick events */ ++ uint64_t hold_ticks; /* token ticks paused */ ++}; ++ ++ ++#define VXSF_ONHOLD 0x0001 ++#define VXSF_IDLE_TIME 0x0100 ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++static inline void __dump_vx_sched(struct _vx_sched *sched) ++{ ++ printk("\t_vx_sched:\n"); ++ printk("\t tokens: %4d/%4d, %4d/%4d, %4d, %4d\n", ++ sched->fill_rate[0], sched->interval[0], ++ sched->fill_rate[1], sched->interval[1], ++ sched->tokens_min, sched->tokens_max); ++ printk("\t priority = %4d, %4d\n", ++ sched->prio_bias, sched->vavavoom); ++} ++ ++#endif ++ ++#endif /* _VX_SCHED_DEF_H */ +Index: linux-2.6.16/include/linux/vserver/signal.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/signal.h +@@ -0,0 +1,14 @@ ++#ifndef _VX_SIGNAL_H ++#define _VX_SIGNAL_H ++ ++ ++#ifdef __KERNEL__ ++ ++struct vx_info; ++ ++int vx_info_kill(struct vx_info *, int, int); ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_SIGNAL_H */ ++#warning duplicate inclusion ++#endif /* _VX_SIGNAL_H */ +Index: linux-2.6.16/include/linux/vserver/signal_cmd.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/signal_cmd.h +@@ -0,0 +1,26 @@ ++#ifndef _VX_SIGNAL_CMD_H ++#define _VX_SIGNAL_CMD_H ++ ++ ++/* signalling vserver commands */ ++ ++#define VCMD_ctx_kill VC_CMD(PROCTRL, 1, 0) ++#define VCMD_wait_exit VC_CMD(EVENT, 99, 0) ++ ++struct vcmd_ctx_kill_v0 { ++ int32_t pid; ++ int32_t sig; ++}; ++ ++struct vcmd_wait_exit_v0 { ++ int32_t a; ++ int32_t b; ++}; ++ ++#ifdef __KERNEL__ ++ ++extern int vc_ctx_kill(uint32_t, void __user *); ++extern int vc_wait_exit(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_SIGNAL_CMD_H */ +Index: linux-2.6.16/include/linux/vserver/switch.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/switch.h +@@ -0,0 +1,98 @@ ++#ifndef _VX_SWITCH_H ++#define _VX_SWITCH_H ++ ++#include <linux/types.h> ++ ++ ++#define VC_CATEGORY(c) (((c) >> 24) & 0x3F) ++#define VC_COMMAND(c) (((c) >> 16) & 0xFF) ++#define VC_VERSION(c) ((c) & 0xFFF) ++ ++#define VC_CMD(c,i,v) ((((VC_CAT_ ## c) & 0x3F) << 24) \ ++ | (((i) & 0xFF) << 16) | ((v) & 0xFFF)) ++ ++/* ++ ++ Syscall Matrix V2.8 ++ ++ |VERSION|CREATE |MODIFY |MIGRATE|CONTROL|EXPERIM| |SPECIAL|SPECIAL| ++ |STATS |DESTROY|ALTER |CHANGE |LIMIT |TEST | | | | ++ |INFO |SETUP | |MOVE | | | | | | ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ SYSTEM |VERSION|VSETUP |VHOST | | | | |DEVICES| | ++ HOST | 00| 01| 02| 03| 04| 05| | 06| 07| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ CPU | |VPROC |PROCALT|PROCMIG|PROCTRL| | |SCHED. | | ++ PROCESS| 08| 09| 10| 11| 12| 13| | 14| 15| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ MEMORY | | | | | | | |SWAP | | ++ | 16| 17| 18| 19| 20| 21| | 22| 23| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ NETWORK| |VNET |NETALT |NETMIG |NETCTL | | |SERIAL | | ++ | 24| 25| 26| 27| 28| 29| | 30| 31| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ DISK | | | | |DLIMIT | | |INODE | | ++ VFS | 32| 33| 34| 35| 36| 37| | 38| 39| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ OTHER | | | | | | | |VINFO | | ++ | 40| 41| 42| 43| 44| 45| | 46| 47| ++ =======+=======+=======+=======+=======+=======+=======+ +=======+=======+ ++ SPECIAL|EVENT | | | |FLAGS | | | | | ++ | 48| 49| 50| 51| 52| 53| | 54| 55| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ SPECIAL|DEBUG | | | |RLIMIT |SYSCALL| | |COMPAT | ++ | 56| 57| 58| 59| 60|TEST 61| | 62| 63| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ ++*/ ++ ++#define VC_CAT_VERSION 0 ++ ++#define VC_CAT_VSETUP 1 ++#define VC_CAT_VHOST 2 ++ ++#define VC_CAT_VPROC 9 ++#define VC_CAT_PROCALT 10 ++#define VC_CAT_PROCMIG 11 ++#define VC_CAT_PROCTRL 12 ++ ++#define VC_CAT_SCHED 14 ++ ++#define VC_CAT_VNET 25 ++#define VC_CAT_NETALT 26 ++#define VC_CAT_NETMIG 27 ++#define VC_CAT_NETCTRL 28 ++ ++#define VC_CAT_DLIMIT 36 ++#define VC_CAT_INODE 38 ++ ++#define VC_CAT_VINFO 46 ++#define VC_CAT_EVENT 48 ++ ++#define VC_CAT_FLAGS 52 ++#define VC_CAT_DEBUG 56 ++#define VC_CAT_RLIMIT 60 ++ ++#define VC_CAT_SYSTEST 61 ++#define VC_CAT_COMPAT 63 ++ ++/* interface version */ ++ ++#define VCI_VERSION 0x00020001 ++#define VCI_LEGACY_VERSION 0x000100FF ++ ++/* query version */ ++ ++#define VCMD_get_version VC_CMD(VERSION, 0, 0) ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/errno.h> ++ ++ ++#else /* __KERNEL__ */ ++#define __user ++#endif /* __KERNEL__ */ ++ ++#endif /* _VX_SWITCH_H */ +Index: linux-2.6.16/include/linux/vserver/tag.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/include/linux/vserver/tag.h +@@ -0,0 +1,155 @@ ++#ifndef _DX_TAG_H ++#define _DX_TAG_H ++ ++#include <linux/config.h> ++ ++ ++#define DX_TAG(in) (IS_TAGGED(in)) ++ ++ ++#ifdef CONFIG_DX_TAG_NFSD ++#define DX_TAG_NFSD 1 ++#else ++#define DX_TAG_NFSD 0 ++#endif ++ ++ ++#ifdef CONFIG_TAGGING_NONE ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOTAG_TAG(cond, uid, gid, tag) (0) ++ ++#define TAGINO_UID(cond, uid, tag) (uid) ++#define TAGINO_GID(cond, gid, tag) (gid) ++ ++#endif ++ ++ ++#ifdef CONFIG_TAGGING_GID16 ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0x0000FFFF ++ ++#define INOTAG_TAG(cond, uid, gid, tag) \ ++ ((cond) ? (((gid) >> 16) & 0xFFFF) : 0) ++ ++#define TAGINO_UID(cond, uid, tag) (uid) ++#define TAGINO_GID(cond, gid, tag) \ ++ ((cond) ? (((gid) & 0xFFFF) | ((tag) << 16)) : (gid)) ++ ++#endif ++ ++ ++#ifdef CONFIG_TAGGING_ID24 ++ ++#define MAX_UID 0x00FFFFFF ++#define MAX_GID 0x00FFFFFF ++ ++#define INOTAG_TAG(cond, uid, gid, tag) \ ++ ((cond) ? ((((uid) >> 16) & 0xFF00) | (((gid) >> 24) & 0xFF)) : 0) ++ ++#define TAGINO_UID(cond, uid, tag) \ ++ ((cond) ? (((uid) & 0xFFFFFF) | (((tag) & 0xFF00) << 16)) : (uid)) ++#define TAGINO_GID(cond, gid, tag) \ ++ ((cond) ? (((gid) & 0xFFFFFF) | (((tag) & 0x00FF) << 24)) : (gid)) ++ ++#endif ++ ++ ++#ifdef CONFIG_TAGGING_UID16 ++ ++#define MAX_UID 0x0000FFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOTAG_TAG(cond, uid, gid, tag) \ ++ ((cond) ? (((uid) >> 16) & 0xFFFF) : 0) ++ ++#define TAGINO_UID(cond, uid, tag) \ ++ ((cond) ? (((uid) & 0xFFFF) | ((tag) << 16)) : (uid)) ++#define TAGINO_GID(cond, gid, tag) (gid) ++ ++#endif ++ ++ ++#ifdef CONFIG_TAGGING_INTERN ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOTAG_TAG(cond, uid, gid, tag) \ ++ ((cond) ? (tag) : 0) ++ ++#define TAGINO_UID(cond, uid, tag) (uid) ++#define TAGINO_GID(cond, gid, tag) (gid) ++ ++#endif ++ ++ ++#ifdef CONFIG_TAGGING_RUNTIME ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOTAG_TAG(cond, uid, gid, tag) (0) ++ ++#define TAGINO_UID(cond, uid, tag) (uid) ++#define TAGINO_GID(cond, gid, tag) (gid) ++ ++#endif ++ ++ ++#ifndef CONFIG_TAGGING_NONE ++#define dx_current_fstag(sb) \ ++ ((sb)->s_flags & MS_TAGGED ? dx_current_tag(): 0) ++#else ++#define dx_current_fstag(sb) (0) ++#endif ++ ++#ifndef CONFIG_TAGGING_INTERN ++#define TAGINO_TAG(cond, tag) (0) ++#else ++#define TAGINO_TAG(cond, tag) ((cond) ? (tag) : 0) ++#endif ++ ++#define INOTAG_UID(cond, uid, gid) \ ++ ((cond) ? ((uid) & MAX_UID) : (uid)) ++#define INOTAG_GID(cond, uid, gid) \ ++ ((cond) ? ((gid) & MAX_GID) : (gid)) ++ ++ ++static inline uid_t dx_map_uid(uid_t uid) ++{ ++ if ((uid > MAX_UID) && (uid != -1)) ++ uid = -2; ++ return (uid & MAX_UID); ++} ++ ++static inline gid_t dx_map_gid(gid_t gid) ++{ ++ if ((gid > MAX_GID) && (gid != -1)) ++ gid = -2; ++ return (gid & MAX_GID); ++} ++ ++ ++#ifdef CONFIG_VSERVER_LEGACY ++#define FIOC_GETTAG _IOR('x', 1, long) ++#define FIOC_SETTAG _IOW('x', 2, long) ++#define FIOC_SETTAGJ _IOW('x', 3, long) ++#endif ++ ++#ifdef CONFIG_PROPAGATE ++ ++int dx_parse_tag(char *string, tag_t *tag, int remove); ++ ++void __dx_propagate_tag(struct nameidata *nd, struct inode *inode); ++ ++#define dx_propagate_tag(n,i) __dx_propagate_tag(n,i) ++ ++#else ++#define dx_propagate_tag(n,i) do { } while (0) ++#endif ++ ++#endif /* _DX_TAG_H */ +Index: linux-2.6.16/include/net/af_unix.h +=================================================================== +--- linux-2.6.16.orig/include/net/af_unix.h ++++ linux-2.6.16/include/net/af_unix.h +@@ -17,9 +17,9 @@ extern spinlock_t unix_table_lock; + + extern atomic_t unix_tot_inflight; + +-static inline struct sock *first_unix_socket(int *i) ++static inline struct sock *next_unix_socket_table(int *i) + { +- for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) { ++ for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) { + if (!hlist_empty(&unix_socket_table[*i])) + return __sk_head(&unix_socket_table[*i]); + } +@@ -28,16 +28,19 @@ static inline struct sock *first_unix_so + + static inline struct sock *next_unix_socket(int *i, struct sock *s) + { +- struct sock *next = sk_next(s); +- /* More in this chain? */ +- if (next) +- return next; +- /* Look for next non-empty chain. */ +- for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) { +- if (!hlist_empty(&unix_socket_table[*i])) +- return __sk_head(&unix_socket_table[*i]); +- } +- return NULL; ++ do { ++ if (s) ++ s = sk_next(s); ++ if (!s) ++ s = next_unix_socket_table(i); ++ } while (s && !vx_check(s->sk_xid, VX_IDENT|VX_WATCH)); ++ return s; ++} ++ ++static inline struct sock *first_unix_socket(int *i) ++{ ++ *i = 0; ++ return next_unix_socket(i, NULL); + } + + #define forall_unix_sockets(i, s) \ +Index: linux-2.6.16/include/net/inet_hashtables.h +=================================================================== +--- linux-2.6.16.orig/include/net/inet_hashtables.h ++++ linux-2.6.16/include/net/inet_hashtables.h +@@ -272,6 +272,25 @@ static inline int inet_iif(const struct + return ((struct rtable *)skb->dst)->rt_iif; + } + ++/* ++ * Check if a given address matches for an inet socket ++ * ++ * nxi: the socket's nx_info if any ++ * addr: to be verified address ++ * saddr: socket addresses ++ */ ++static inline int inet_addr_match ( ++ struct nx_info *nxi, ++ uint32_t addr, ++ uint32_t saddr) ++{ ++ if (addr && (saddr == addr)) ++ return 1; ++ if (!saddr) ++ return addr_in_nx_info(nxi, addr); ++ return 0; ++} ++ + extern struct sock *__inet_lookup_listener(const struct hlist_head *head, + const u32 daddr, + const unsigned short hnum, +@@ -292,7 +311,7 @@ static inline struct sock * + const struct inet_sock *inet = inet_sk((sk = __sk_head(head))); + + if (inet->num == hnum && !sk->sk_node.next && +- (!inet->rcv_saddr || inet->rcv_saddr == daddr) && ++ inet_addr_match(sk->sk_nx_info, daddr, inet->rcv_saddr) && + (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) && + !sk->sk_bound_dev_if) + goto sherry_cache; +Index: linux-2.6.16/include/net/inet_sock.h +=================================================================== +--- linux-2.6.16.orig/include/net/inet_sock.h ++++ linux-2.6.16/include/net/inet_sock.h +@@ -115,6 +115,7 @@ struct inet_sock { + /* Socket demultiplex comparisons on incoming packets. */ + __u32 daddr; + __u32 rcv_saddr; ++ __u32 rcv_saddr2; /* Second bound ipv4 addr, for ipv4root */ + __u16 dport; + __u16 num; + __u32 saddr; +Index: linux-2.6.16/include/net/inet_timewait_sock.h +=================================================================== +--- linux-2.6.16.orig/include/net/inet_timewait_sock.h ++++ linux-2.6.16/include/net/inet_timewait_sock.h +@@ -116,6 +116,10 @@ struct inet_timewait_sock { + #define tw_refcnt __tw_common.skc_refcnt + #define tw_hash __tw_common.skc_hash + #define tw_prot __tw_common.skc_prot ++#define tw_xid __tw_common.skc_xid ++#define tw_vx_info __tw_common.skc_vx_info ++#define tw_nid __tw_common.skc_nid ++#define tw_nx_info __tw_common.skc_nx_info + volatile unsigned char tw_substate; + /* 3 bits hole, try to pack */ + unsigned char tw_rcv_wscale; +Index: linux-2.6.16/include/net/route.h +=================================================================== +--- linux-2.6.16.orig/include/net/route.h ++++ linux-2.6.16/include/net/route.h +@@ -28,11 +28,14 @@ + #include <net/dst.h> + #include <net/inetpeer.h> + #include <net/flow.h> ++#include <net/inet_sock.h> + #include <linux/in_route.h> + #include <linux/rtnetlink.h> + #include <linux/route.h> + #include <linux/ip.h> + #include <linux/cache.h> ++#include <linux/vs_network.h> ++#include <linux/in.h> + + #ifndef __KERNEL__ + #warning This file is not supposed to be used outside of kernel. +@@ -144,6 +147,59 @@ static inline char rt_tos2priority(u8 to + return ip_tos2prio[IPTOS_TOS(tos)>>1]; + } + ++#define IPI_LOOPBACK htonl(INADDR_LOOPBACK) ++ ++static inline int ip_find_src(struct nx_info *nxi, struct rtable **rp, struct flowi *fl) ++{ ++ int err; ++ int i, n = nxi->nbipv4; ++ u32 ipv4root = nxi->ipv4[0]; ++ ++ if (ipv4root == 0) ++ return 0; ++ ++ if (fl->fl4_src == 0) { ++ if (n > 1) { ++ u32 foundsrc; ++ ++ err = __ip_route_output_key(rp, fl); ++ if (err) { ++ fl->fl4_src = ipv4root; ++ err = __ip_route_output_key(rp, fl); ++ } ++ if (err) ++ return err; ++ ++ foundsrc = (*rp)->rt_src; ++ ip_rt_put(*rp); ++ ++ for (i=0; i<n; i++){ ++ u32 mask = nxi->mask[i]; ++ u32 ipv4 = nxi->ipv4[i]; ++ u32 net4 = ipv4 & mask; ++ ++ if (foundsrc == ipv4) { ++ fl->fl4_src = ipv4; ++ break; ++ } ++ if (!fl->fl4_src && (foundsrc & mask) == net4) ++ fl->fl4_src = ipv4; ++ } ++ } ++ if (fl->fl4_src == 0) ++ fl->fl4_src = (fl->fl4_dst == IPI_LOOPBACK) ++ ? IPI_LOOPBACK : ipv4root; ++ } else { ++ for (i=0; i<n; i++) { ++ if (nxi->ipv4[i] == fl->fl4_src) ++ break; ++ } ++ if (i == n) ++ return -EPERM; ++ } ++ return 0; ++} ++ + static inline int ip_route_connect(struct rtable **rp, u32 dst, + u32 src, u32 tos, int oif, u8 protocol, + u16 sport, u16 dport, struct sock *sk) +@@ -158,7 +214,23 @@ static inline int ip_route_connect(struc + .dport = dport } } }; + + int err; +- if (!dst || !src) { ++ struct nx_info *nx_info = current->nx_info; ++ ++ if (sk) ++ nx_info = sk->sk_nx_info; ++ vxdprintk(VXD_CBIT(net, 4), ++ "ip_route_connect(%p) %p,%p;%lx", ++ sk, nx_info, sk->sk_socket, ++ (sk->sk_socket?sk->sk_socket->flags:0)); ++ ++ if (nx_info) { ++ err = ip_find_src(nx_info, rp, &fl); ++ if (err) ++ return err; ++ if (fl.fl4_dst == IPI_LOOPBACK && !vx_check(0, VX_ADMIN)) ++ fl.fl4_dst = nx_info->ipv4[0]; ++ } ++ if (!fl.fl4_dst || !fl.fl4_src) { + err = __ip_route_output_key(rp, &fl); + if (err) + return err; +Index: linux-2.6.16/include/net/sock.h +=================================================================== +--- linux-2.6.16.orig/include/net/sock.h ++++ linux-2.6.16/include/net/sock.h +@@ -115,6 +115,10 @@ struct sock_common { + atomic_t skc_refcnt; + unsigned int skc_hash; + struct proto *skc_prot; ++ xid_t skc_xid; ++ struct vx_info *skc_vx_info; ++ nid_t skc_nid; ++ struct nx_info *skc_nx_info; + }; + + /** +@@ -189,6 +193,10 @@ struct sock { + #define sk_refcnt __sk_common.skc_refcnt + #define sk_hash __sk_common.skc_hash + #define sk_prot __sk_common.skc_prot ++#define sk_xid __sk_common.skc_xid ++#define sk_vx_info __sk_common.skc_vx_info ++#define sk_nid __sk_common.skc_nid ++#define sk_nx_info __sk_common.skc_nx_info + unsigned char sk_shutdown : 2, + sk_no_check : 2, + sk_userlocks : 4; +Index: linux-2.6.16/init/version.c +=================================================================== +--- linux-2.6.16.orig/init/version.c ++++ linux-2.6.16/init/version.c +@@ -31,3 +31,8 @@ EXPORT_SYMBOL(system_utsname); + const char linux_banner[] = + "Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@" + LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n"; ++ ++const char vx_linux_banner[] = ++ "Linux version %s (" LINUX_COMPILE_BY "@" ++ LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") %s\n"; ++ +Index: linux-2.6.16/ipc/mqueue.c +=================================================================== +--- linux-2.6.16.orig/ipc/mqueue.c ++++ linux-2.6.16/ipc/mqueue.c +@@ -25,6 +25,8 @@ + #include <linux/netlink.h> + #include <linux/syscalls.h> + #include <linux/signal.h> ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> + #include <net/sock.h> + #include "util.h" + +@@ -148,17 +150,20 @@ static struct inode *mqueue_get_inode(st + spin_lock(&mq_lock); + if (u->mq_bytes + mq_bytes < u->mq_bytes || + u->mq_bytes + mq_bytes > +- p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur) { ++ p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur || ++ !vx_ipcmsg_avail(p->vx_info, mq_bytes)) { + spin_unlock(&mq_lock); + goto out_inode; + } + u->mq_bytes += mq_bytes; ++ vx_ipcmsg_add(p->vx_info, u, mq_bytes); + spin_unlock(&mq_lock); + + info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL); + if (!info->messages) { + spin_lock(&mq_lock); + u->mq_bytes -= mq_bytes; ++ vx_ipcmsg_sub(p->vx_info, u, mq_bytes); + spin_unlock(&mq_lock); + goto out_inode; + } +@@ -256,10 +261,14 @@ static void mqueue_delete_inode(struct i + (info->attr.mq_maxmsg * info->attr.mq_msgsize)); + user = info->user; + if (user) { ++ struct vx_info *vxi = lookup_vx_info(user->xid); ++ + spin_lock(&mq_lock); + user->mq_bytes -= mq_bytes; ++ vx_ipcmsg_sub(vxi, user, mq_bytes); + queues_count--; + spin_unlock(&mq_lock); ++ put_vx_info(vxi); + free_uid(user); + } + } +@@ -738,7 +747,7 @@ asmlinkage long sys_mq_unlink(const char + if (inode) + atomic_inc(&inode->i_count); + +- err = vfs_unlink(dentry->d_parent->d_inode, dentry); ++ err = vfs_unlink(dentry->d_parent->d_inode, dentry, NULL); + out_err: + dput(dentry); + +Index: linux-2.6.16/ipc/msg.c +=================================================================== +--- linux-2.6.16.orig/ipc/msg.c ++++ linux-2.6.16/ipc/msg.c +@@ -100,6 +100,7 @@ static int newque (key_t key, int msgflg + + msq->q_perm.mode = (msgflg & S_IRWXUGO); + msq->q_perm.key = key; ++ msq->q_perm.xid = vx_current_xid(); + + msq->q_perm.security = NULL; + retval = security_msg_queue_alloc(msq); +@@ -815,6 +816,9 @@ static int sysvipc_msg_proc_show(struct + { + struct msg_queue *msq = it; + ++ if (!vx_check(msq->q_perm.xid, VX_IDENT)) ++ return 0; ++ + return seq_printf(s, + "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n", + msq->q_perm.key, +Index: linux-2.6.16/ipc/sem.c +=================================================================== +--- linux-2.6.16.orig/ipc/sem.c ++++ linux-2.6.16/ipc/sem.c +@@ -75,6 +75,7 @@ + #include <linux/audit.h> + #include <linux/capability.h> + #include <linux/seq_file.h> ++#include <linux/vs_limit.h> + #include <asm/uaccess.h> + #include "util.h" + +@@ -179,6 +180,7 @@ static int newary (key_t key, int nsems, + + sma->sem_perm.mode = (semflg & S_IRWXUGO); + sma->sem_perm.key = key; ++ sma->sem_perm.xid = vx_current_xid(); + + sma->sem_perm.security = NULL; + retval = security_sem_alloc(sma); +@@ -194,6 +196,8 @@ static int newary (key_t key, int nsems, + return -ENOSPC; + } + used_sems += nsems; ++ vx_semary_inc(sma); ++ vx_nsems_add(sma, nsems); + + sma->sem_id = sem_buildid(id, sma->sem_perm.seq); + sma->sem_base = (struct sem *) &sma[1]; +@@ -473,6 +477,8 @@ static void freeary (struct sem_array *s + sem_unlock(sma); + + used_sems -= sma->sem_nsems; ++ vx_nsems_sub(sma, sma->sem_nsems); ++ vx_semary_dec(sma); + size = sizeof (*sma) + sma->sem_nsems * sizeof (struct sem); + security_sem_free(sma); + ipc_rcu_putref(sma); +@@ -1337,6 +1343,9 @@ static int sysvipc_sem_proc_show(struct + { + struct sem_array *sma = it; + ++ if (!vx_check(sma->sem_perm.xid, VX_IDENT)) ++ return 0; ++ + return seq_printf(s, + "%10d %10d %4o %10lu %5u %5u %5u %5u %10lu %10lu\n", + sma->sem_perm.key, +Index: linux-2.6.16/ipc/shm.c +=================================================================== +--- linux-2.6.16.orig/ipc/shm.c ++++ linux-2.6.16/ipc/shm.c +@@ -30,6 +30,8 @@ + #include <linux/capability.h> + #include <linux/ptrace.h> + #include <linux/seq_file.h> ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> + + #include <asm/uaccess.h> + +@@ -114,7 +116,12 @@ static void shm_open (struct vm_area_str + */ + static void shm_destroy (struct shmid_kernel *shp) + { +- shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT; ++ struct vx_info *vxi = lookup_vx_info(shp->shm_perm.xid); ++ int numpages = (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT; ++ ++ vx_ipcshm_sub(vxi, shp, numpages); ++ shm_tot -= numpages; ++ + shm_rmid (shp->id); + shm_unlock(shp); + if (!is_file_hugepages(shp->shm_file)) +@@ -124,6 +131,7 @@ static void shm_destroy (struct shmid_ke + shp->mlock_user); + fput (shp->shm_file); + security_shm_free(shp); ++ put_vx_info(vxi); + ipc_rcu_putref(shp); + } + +@@ -198,12 +206,15 @@ static int newseg (key_t key, int shmflg + + if (shm_tot + numpages >= shm_ctlall) + return -ENOSPC; ++ if (!vx_ipcshm_avail(current->vx_info, numpages)) ++ return -ENOSPC; + + shp = ipc_rcu_alloc(sizeof(*shp)); + if (!shp) + return -ENOMEM; + + shp->shm_perm.key = key; ++ shp->shm_perm.xid = vx_current_xid(); + shp->shm_perm.mode = (shmflg & S_IRWXUGO); + shp->mlock_user = NULL; + +@@ -254,6 +265,7 @@ static int newseg (key_t key, int shmflg + file->f_op = &shm_file_operations; + + shm_tot += numpages; ++ vx_ipcshm_add(current->vx_info, key, numpages); + shm_unlock(shp); + return shp->id; + +@@ -895,6 +907,9 @@ static int sysvipc_shm_proc_show(struct + #define SMALL_STRING "%10d %10d %4o %10u %5u %5u %5d %5u %5u %5u %5u %10lu %10lu %10lu\n" + #define BIG_STRING "%10d %10d %4o %21u %5u %5u %5d %5u %5u %5u %5u %10lu %10lu %10lu\n" + ++ if (!vx_check(shp->shm_perm.xid, VX_IDENT)) ++ return 0; ++ + if (sizeof(size_t) <= sizeof(int)) + format = SMALL_STRING; + else +Index: linux-2.6.16/ipc/util.c +=================================================================== +--- linux-2.6.16.orig/ipc/util.c ++++ linux-2.6.16/ipc/util.c +@@ -154,7 +154,9 @@ int ipc_findkey(struct ipc_ids* ids, key + */ + for (id = 0; id <= max_id; id++) { + p = ids->entries->p[id]; +- if(p==NULL) ++ if (p==NULL) ++ continue; ++ if (!vx_check(p->xid, VX_IDENT)) + continue; + if (key == p->key) + return id; +@@ -468,6 +470,8 @@ int ipcperms (struct kern_ipc_perm *ipcp + { /* flag will most probably be 0 or S_...UGO from <linux/stat.h> */ + int requested_mode, granted_mode; + ++ if (!vx_check(ipcp->xid, VX_ADMIN|VX_IDENT)) /* maybe just VX_IDENT? */ ++ return -1; + requested_mode = (flag >> 6) | (flag >> 3) | flag; + granted_mode = ipcp->mode; + if (current->euid == ipcp->cuid || current->euid == ipcp->uid) +Index: linux-2.6.16/kernel/Makefile +=================================================================== +--- linux-2.6.16.orig/kernel/Makefile ++++ linux-2.6.16/kernel/Makefile +@@ -10,6 +10,8 @@ obj-y = sched.o fork.o exec_domain.o + kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \ + hrtimer.o + ++obj-y += vserver/ ++ + obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o + obj-$(CONFIG_FUTEX) += futex.o + obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o +Index: linux-2.6.16/kernel/capability.c +=================================================================== +--- linux-2.6.16.orig/kernel/capability.c ++++ linux-2.6.16/kernel/capability.c +@@ -12,6 +12,7 @@ + #include <linux/module.h> + #include <linux/security.h> + #include <linux/syscalls.h> ++#include <linux/vs_pid.h> + #include <asm/uaccess.h> + + unsigned securebits = SECUREBITS_DEFAULT; /* systemwide security settings */ +Index: linux-2.6.16/kernel/cpuset.c +=================================================================== +--- linux-2.6.16.orig/kernel/cpuset.c ++++ linux-2.6.16/kernel/cpuset.c +@@ -50,6 +50,7 @@ + #include <linux/time.h> + #include <linux/backing-dev.h> + #include <linux/sort.h> ++#include <linux/vs_pid.h> + + #include <asm/uaccess.h> + #include <asm/atomic.h> +Index: linux-2.6.16/kernel/exit.c +=================================================================== +--- linux-2.6.16.orig/kernel/exit.c ++++ linux-2.6.16/kernel/exit.c +@@ -31,6 +31,10 @@ + #include <linux/signal.h> + #include <linux/cn_proc.h> + #include <linux/mutex.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_pid.h> + + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -237,6 +241,7 @@ static void reparent_to_init(void) + ptrace_unlink(current); + /* Reparent to init */ + REMOVE_LINKS(current); ++ /* FIXME: handle vchild_reaper/initpid */ + current->parent = child_reaper; + current->real_parent = child_reaper; + SET_LINKS(current); +@@ -396,6 +401,7 @@ static void close_files(struct files_str + struct file * file = xchg(&fdt->fd[i], NULL); + if (file) + filp_close(file, files); ++ vx_openfd_dec(i); + } + i++; + set >>= 1; +@@ -536,7 +542,7 @@ static void exit_mm(struct task_struct * + mmput(mm); + } + +-static inline void choose_new_parent(task_t *p, task_t *reaper, task_t *child_reaper) ++static inline void choose_new_parent(task_t *p, task_t *reaper) + { + /* + * Make sure we're not reparenting to ourselves and that +@@ -616,10 +622,11 @@ static void forget_original_parent(struc + struct task_struct *p, *reaper = father; + struct list_head *_p, *_n; + ++ /* FIXME: handle vchild_reaper/initpid */ + do { + reaper = next_thread(reaper); + if (reaper == father) { +- reaper = child_reaper; ++ reaper = vx_child_reaper(father); + break; + } + } while (reaper->exit_state); +@@ -643,7 +650,7 @@ static void forget_original_parent(struc + + if (father == p->real_parent) { + /* reparent with a reaper, real father it's us */ +- choose_new_parent(p, reaper, child_reaper); ++ choose_new_parent(p, vx_child_reaper(p)); + reparent_thread(p, father, 0); + } else { + /* reparent ptraced task to its real parent */ +@@ -664,7 +671,11 @@ static void forget_original_parent(struc + } + list_for_each_safe(_p, _n, &father->ptrace_children) { + p = list_entry(_p,struct task_struct,ptrace_list); +- choose_new_parent(p, reaper, child_reaper); ++ ++ /* check for reaper context */ ++ BUG_ON(p->xid != reaper->xid); ++ ++ choose_new_parent(p, reaper); + reparent_thread(p, father, 1); + } + } +@@ -858,6 +869,8 @@ fastcall NORET_TYPE void do_exit(long co + __exit_files(tsk); + __exit_fs(tsk); + exit_namespace(tsk); ++ exit_vx_info(tsk); ++ exit_nx_info(tsk); + exit_thread(); + cpuset_exit(tsk); + exit_keys(tsk); +Index: linux-2.6.16/kernel/fork.c +=================================================================== +--- linux-2.6.16.orig/kernel/fork.c ++++ linux-2.6.16/kernel/fork.c +@@ -44,6 +44,10 @@ + #include <linux/rmap.h> + #include <linux/acct.h> + #include <linux/cn_proc.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_memory.h> + + #include <asm/pgtable.h> + #include <asm/pgalloc.h> +@@ -105,6 +109,8 @@ static kmem_cache_t *mm_cachep; + void free_task(struct task_struct *tsk) + { + free_thread_info(tsk->thread_info); ++ clr_vx_info(&tsk->vx_info); ++ clr_nx_info(&tsk->nx_info); + free_task_struct(tsk); + } + EXPORT_SYMBOL(free_task); +@@ -204,6 +210,8 @@ static inline int dup_mmap(struct mm_str + mm->free_area_cache = oldmm->mmap_base; + mm->cached_hole_size = ~0UL; + mm->map_count = 0; ++ __set_mm_counter(mm, file_rss, 0); ++ __set_mm_counter(mm, anon_rss, 0); + cpus_clear(mm->cpu_vm_mask); + mm->mm_rb = RB_ROOT; + rb_link = &mm->mm_rb.rb_node; +@@ -215,7 +223,7 @@ static inline int dup_mmap(struct mm_str + + if (mpnt->vm_flags & VM_DONTCOPY) { + long pages = vma_pages(mpnt); +- mm->total_vm -= pages; ++ vx_vmpages_sub(mm, pages); + vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file, + -pages); + continue; +@@ -322,8 +330,6 @@ static struct mm_struct * mm_init(struct + INIT_LIST_HEAD(&mm->mmlist); + mm->core_waiters = 0; + mm->nr_ptes = 0; +- set_mm_counter(mm, file_rss, 0); +- set_mm_counter(mm, anon_rss, 0); + spin_lock_init(&mm->page_table_lock); + rwlock_init(&mm->ioctx_list_lock); + mm->ioctx_list = NULL; +@@ -332,6 +338,7 @@ static struct mm_struct * mm_init(struct + + if (likely(!mm_alloc_pgd(mm))) { + mm->def_flags = 0; ++ set_vx_info(&mm->mm_vx_info, current->vx_info); + return mm; + } + free_mm(mm); +@@ -363,6 +370,7 @@ void fastcall __mmdrop(struct mm_struct + BUG_ON(mm == &init_mm); + mm_free_pgd(mm); + destroy_context(mm); ++ clr_vx_info(&mm->mm_vx_info); + free_mm(mm); + } + +@@ -500,6 +508,7 @@ static struct mm_struct *dup_mm(struct t + goto fail_nomem; + + memcpy(mm, oldmm, sizeof(*mm)); ++ mm->mm_vx_info = NULL; + + if (!mm_init(mm)) + goto fail_nomem; +@@ -527,6 +536,7 @@ fail_nocontext: + * If init_new_context() failed, we cannot use mmput() to free the mm + * because it calls destroy_context() + */ ++ clr_vx_info(&mm->mm_vx_info); + mm_free_pgd(mm); + free_mm(mm); + return NULL; +@@ -720,6 +730,8 @@ static struct files_struct *dup_fd(struc + struct file *f = *old_fds++; + if (f) { + get_file(f); ++ /* FIXME: sum it first for check and performance */ ++ vx_openfd_inc(open_files - i); + } else { + /* + * The fd may be claimed in the fd bitmap but not yet +@@ -952,6 +964,8 @@ static task_t *copy_process(unsigned lon + { + int retval; + struct task_struct *p = NULL; ++ struct vx_info *vxi; ++ struct nx_info *nxi; + + if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS)) + return ERR_PTR(-EINVAL); +@@ -980,12 +994,30 @@ static task_t *copy_process(unsigned lon + if (!p) + goto fork_out; + ++ init_vx_info(&p->vx_info, current->vx_info); ++ init_nx_info(&p->nx_info, current->nx_info); ++ ++ /* check vserver memory */ ++ if (p->mm && !(clone_flags & CLONE_VM)) { ++ if (vx_vmpages_avail(p->mm, p->mm->total_vm)) ++ vx_pages_add(p->vx_info, RLIMIT_AS, p->mm->total_vm); ++ else ++ goto bad_fork_free; ++ } ++ if (p->mm && vx_flags(VXF_FORK_RSS, 0)) { ++ if (!vx_rsspages_avail(p->mm, get_mm_counter(p->mm, file_rss))) ++ goto bad_fork_cleanup_vm; ++ } ++ + retval = -EAGAIN; ++ if (!vx_nproc_avail(1)) ++ goto bad_fork_cleanup_vm; ++ + if (atomic_read(&p->user->processes) >= + p->signal->rlim[RLIMIT_NPROC].rlim_cur) { + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && + p->user != &root_user) +- goto bad_fork_free; ++ goto bad_fork_cleanup_vm; + } + + atomic_inc(&p->user->__count); +@@ -1231,6 +1263,18 @@ static task_t *copy_process(unsigned lon + nr_threads++; + total_forks++; + spin_unlock(¤t->sighand->siglock); ++ ++ /* p is copy of current */ ++ vxi = p->vx_info; ++ if (vxi) { ++ claim_vx_info(vxi, p); ++ atomic_inc(&vxi->cvirt.nr_threads); ++ atomic_inc(&vxi->cvirt.total_forks); ++ vx_nproc_inc(p); ++ } ++ nxi = p->nx_info; ++ if (nxi) ++ claim_nx_info(nxi, p); + write_unlock_irq(&tasklist_lock); + proc_fork_connector(p); + return p; +@@ -1271,6 +1315,9 @@ bad_fork_cleanup_count: + put_group_info(p->group_info); + atomic_dec(&p->user->processes); + free_uid(p->user); ++bad_fork_cleanup_vm: ++ if (p->mm && !(clone_flags & CLONE_VM)) ++ vx_pages_sub(p->vx_info, RLIMIT_AS, p->mm->total_vm); + bad_fork_free: + free_task(p); + fork_out: +@@ -1331,6 +1378,14 @@ long do_fork(unsigned long clone_flags, + + if (pid < 0) + return -EAGAIN; ++ ++ /* kernel threads are host only */ ++ if ((clone_flags & CLONE_KTHREAD) && !vx_check(0, VX_ADMIN)) { ++ vxwprintk(1, "xid=%d tried to spawn a kernel thread.", ++ vx_current_xid()); ++ return -EPERM; ++ } ++ + if (unlikely(current->ptrace)) { + trace = fork_traceflag (clone_flags); + if (trace) +Index: linux-2.6.16/kernel/kthread.c +=================================================================== +--- linux-2.6.16.orig/kernel/kthread.c ++++ linux-2.6.16/kernel/kthread.c +@@ -114,7 +114,7 @@ static void keventd_create_kthread(void + create->result = ERR_PTR(pid); + } else { + wait_for_completion(&create->started); +- create->result = find_task_by_pid(pid); ++ create->result = find_task_by_real_pid(pid); + } + complete(&create->done); + } +Index: linux-2.6.16/kernel/posix-cpu-timers.c +=================================================================== +--- linux-2.6.16.orig/kernel/posix-cpu-timers.c ++++ linux-2.6.16/kernel/posix-cpu-timers.c +@@ -6,6 +6,7 @@ + #include <linux/posix-timers.h> + #include <asm/uaccess.h> + #include <linux/errno.h> ++#include <linux/vs_pid.h> + + static int check_clock(const clockid_t which_clock) + { +Index: linux-2.6.16/kernel/posix-timers.c +=================================================================== +--- linux-2.6.16.orig/kernel/posix-timers.c ++++ linux-2.6.16/kernel/posix-timers.c +@@ -47,6 +47,8 @@ + #include <linux/wait.h> + #include <linux/workqueue.h> + #include <linux/module.h> ++#include <linux/vs_context.h> ++#include <linux/vs_pid.h> + + /* + * Management arrays for POSIX timers. Timers are kept in slab memory +@@ -294,6 +296,10 @@ void do_schedule_next_timer(struct sigin + + int posix_timer_event(struct k_itimer *timr,int si_private) + { ++ struct vx_info_save vxis; ++ int ret; ++ ++ enter_vx_info(task_get_vx_info(timr->it_process), &vxis); + memset(&timr->sigq->info, 0, sizeof(siginfo_t)); + timr->sigq->info.si_sys_private = si_private; + /* Send signal to the process that owns this timer.*/ +@@ -306,11 +312,11 @@ int posix_timer_event(struct k_itimer *t + + if (timr->it_sigev_notify & SIGEV_THREAD_ID) { + struct task_struct *leader; +- int ret = send_sigqueue(timr->it_sigev_signo, timr->sigq, +- timr->it_process); + ++ ret = send_sigqueue(timr->it_sigev_signo, timr->sigq, ++ timr->it_process); + if (likely(ret >= 0)) +- return ret; ++ goto out; + + timr->it_sigev_notify = SIGEV_SIGNAL; + leader = timr->it_process->group_leader; +@@ -318,8 +324,12 @@ int posix_timer_event(struct k_itimer *t + timr->it_process = leader; + } + +- return send_group_sigqueue(timr->it_sigev_signo, timr->sigq, +- timr->it_process); ++ ret = send_group_sigqueue(timr->it_sigev_signo, timr->sigq, ++ timr->it_process); ++out: ++ leave_vx_info(&vxis); ++ put_vx_info(vxis.vxi); ++ return ret; + } + EXPORT_SYMBOL_GPL(posix_timer_event); + +@@ -366,7 +376,7 @@ static struct task_struct * good_sigeven + struct task_struct *rtn = current->group_leader; + + if ((event->sigev_notify & SIGEV_THREAD_ID ) && +- (!(rtn = find_task_by_pid(event->sigev_notify_thread_id)) || ++ (!(rtn = find_task_by_real_pid(event->sigev_notify_thread_id)) || + rtn->tgid != current->tgid || + (event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_SIGNAL)) + return NULL; +Index: linux-2.6.16/kernel/printk.c +=================================================================== +--- linux-2.6.16.orig/kernel/printk.c ++++ linux-2.6.16/kernel/printk.c +@@ -31,6 +31,8 @@ + #include <linux/security.h> + #include <linux/bootmem.h> + #include <linux/syscalls.h> ++#include <linux/vs_context.h> ++#include <linux/vserver/cvirt.h> + + #include <asm/uaccess.h> + +@@ -221,18 +223,13 @@ int do_syslog(int type, char __user *buf + unsigned long i, j, limit, count; + int do_clear = 0; + char c; +- int error = 0; ++ int error; + + error = security_syslog(type); + if (error) + return error; + +- switch (type) { +- case 0: /* Close log */ +- break; +- case 1: /* Open log */ +- break; +- case 2: /* Read from log */ ++ if ((type >= 2) && (type <= 4)) { + error = -EINVAL; + if (!buf || len < 0) + goto out; +@@ -243,6 +240,16 @@ int do_syslog(int type, char __user *buf + error = -EFAULT; + goto out; + } ++ } ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return vx_do_syslog(type, buf, len); ++ ++ switch (type) { ++ case 0: /* Close log */ ++ break; ++ case 1: /* Open log */ ++ break; ++ case 2: /* Read from log */ + error = wait_event_interruptible(log_wait, + (log_start - log_end)); + if (error) +@@ -267,16 +274,6 @@ int do_syslog(int type, char __user *buf + do_clear = 1; + /* FALL THRU */ + case 3: /* Read last kernel messages */ +- error = -EINVAL; +- if (!buf || len < 0) +- goto out; +- error = 0; +- if (!len) +- goto out; +- if (!access_ok(VERIFY_WRITE, buf, len)) { +- error = -EFAULT; +- goto out; +- } + count = len; + if (count > log_buf_len) + count = log_buf_len; +@@ -513,11 +510,14 @@ __attribute__((weak)) unsigned long long + + asmlinkage int printk(const char *fmt, ...) + { ++ struct vx_info_save vxis; + va_list args; + int r; + + va_start(args, fmt); ++ __enter_vx_admin(&vxis); + r = vprintk(fmt, args); ++ __leave_vx_admin(&vxis); + va_end(args); + + return r; +Index: linux-2.6.16/kernel/ptrace.c +=================================================================== +--- linux-2.6.16.orig/kernel/ptrace.c ++++ linux-2.6.16/kernel/ptrace.c +@@ -18,6 +18,7 @@ + #include <linux/ptrace.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_pid.h> + + #include <asm/pgtable.h> + #include <asm/uaccess.h> +@@ -489,6 +490,10 @@ asmlinkage long sys_ptrace(long request, + goto out; + } + ++ ret = -EPERM; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_put_task_struct; ++ + if (request == PTRACE_ATTACH) { + ret = ptrace_attach(child); + goto out_put_task_struct; +Index: linux-2.6.16/kernel/sched.c +=================================================================== +--- linux-2.6.16.orig/kernel/sched.c ++++ linux-2.6.16/kernel/sched.c +@@ -52,6 +52,10 @@ + #include <asm/tlb.h> + + #include <asm/unistd.h> ++#include <linux/vs_context.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vs_pid.h> ++#include <linux/vs_sched.h> + + /* + * Convert user-nice values [ -20 ... 0 ... 19 ] +@@ -238,6 +242,16 @@ struct runqueue { + task_t *migration_thread; + struct list_head migration_queue; + #endif ++ unsigned long norm_time; ++ unsigned long idle_time; ++#ifdef CONFIG_VSERVER_IDLETIME ++ int idle_skip; ++#endif ++#ifdef CONFIG_VSERVER_HARDCPU ++ struct list_head hold_queue; ++ unsigned long nr_onhold; ++ int idle_tokens; ++#endif + + #ifdef CONFIG_SCHEDSTATS + /* latency stats */ +@@ -598,6 +612,7 @@ static inline void sched_info_switch(tas + */ + static void dequeue_task(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + array->nr_active--; + list_del(&p->run_list); + if (list_empty(array->queue + p->prio)) +@@ -606,6 +621,7 @@ static void dequeue_task(struct task_str + + static void enqueue_task(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + sched_info_queued(p); + list_add_tail(&p->run_list, array->queue + p->prio); + __set_bit(p->prio, array->bitmap); +@@ -619,11 +635,13 @@ static void enqueue_task(struct task_str + */ + static void requeue_task(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + list_move_tail(&p->run_list, array->queue + p->prio); + } + + static inline void enqueue_task_head(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + list_add(&p->run_list, array->queue + p->prio); + __set_bit(p->prio, array->bitmap); + array->nr_active++; +@@ -654,6 +672,10 @@ static int effective_prio(task_t *p) + bonus = CURRENT_BONUS(p) - MAX_BONUS / 2; + + prio = p->static_prio - bonus; ++ ++ /* adjust effective priority */ ++ prio += vx_adjust_prio(p, prio, MAX_USER_PRIO); ++ + if (prio < MAX_RT_PRIO) + prio = MAX_RT_PRIO; + if (prio > MAX_PRIO-1) +@@ -792,19 +814,30 @@ static void activate_task(task_t *p, run + } + p->timestamp = now; + ++ vx_activate_task(p); + __activate_task(p, rq); + } + + /* + * deactivate_task - remove a task from the runqueue. + */ +-static void deactivate_task(struct task_struct *p, runqueue_t *rq) ++static void __deactivate_task(struct task_struct *p, runqueue_t *rq) + { + rq->nr_running--; + dequeue_task(p, p->array); + p->array = NULL; + } + ++static inline ++void deactivate_task(struct task_struct *p, runqueue_t *rq) ++{ ++ vx_deactivate_task(p); ++ __deactivate_task(p, rq); ++} ++ ++ ++#include "sched_hard.h" ++ + /* + * resched_task - mark a task 'to be rescheduled now'. + * +@@ -1168,6 +1201,12 @@ static int try_to_wake_up(task_t *p, uns + + rq = task_rq_lock(p, &flags); + old_state = p->state; ++ ++ /* we need to unhold suspended tasks */ ++ if (old_state & TASK_ONHOLD) { ++ vx_unhold_task(p, rq); ++ old_state = p->state; ++ } + if (!(old_state & state)) + goto out; + +@@ -1284,10 +1323,16 @@ out_activate: + * sleep is handled in a priority-neutral manner, no priority + * boost and no penalty.) + */ +- if (old_state & TASK_NONINTERACTIVE) ++ if (old_state & TASK_NONINTERACTIVE) { ++ vx_activate_task(p); + __activate_task(p, rq); +- else ++ } else + activate_task(p, rq, cpu == this_cpu); ++ ++ /* this is to get the accounting behind the load update */ ++ if (old_state & TASK_UNINTERRUPTIBLE) ++ vx_uninterruptible_dec(p); ++ + /* + * Sync wakeups (i.e. those types of wakeups where the waker + * has indicated that it will leave the CPU in short order) +@@ -1411,6 +1456,7 @@ void fastcall wake_up_new_task(task_t *p + + p->prio = effective_prio(p); + ++ vx_activate_task(p); + if (likely(cpu == this_cpu)) { + if (!(clone_flags & CLONE_VM)) { + /* +@@ -1422,6 +1468,7 @@ void fastcall wake_up_new_task(task_t *p + __activate_task(p, rq); + else { + p->prio = current->prio; ++ BUG_ON(p->state & TASK_ONHOLD); + list_add_tail(&p->run_list, ¤t->run_list); + p->array = current->array; + p->array->nr_active++; +@@ -2485,13 +2532,16 @@ unsigned long long current_sched_time(co + void account_user_time(struct task_struct *p, cputime_t cputime) + { + struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat; ++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */ + cputime64_t tmp; ++ int nice = (TASK_NICE(p) > 0); + + p->utime = cputime_add(p->utime, cputime); ++ vx_account_user(vxi, cputime, nice); + + /* Add user time to cpustat. */ + tmp = cputime_to_cputime64(cputime); +- if (TASK_NICE(p) > 0) ++ if (nice) + cpustat->nice = cputime64_add(cpustat->nice, tmp); + else + cpustat->user = cputime64_add(cpustat->user, tmp); +@@ -2507,10 +2557,12 @@ void account_system_time(struct task_str + cputime_t cputime) + { + struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat; ++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */ + runqueue_t *rq = this_rq(); + cputime64_t tmp; + + p->stime = cputime_add(p->stime, cputime); ++ vx_account_system(vxi, cputime, (p == rq->idle)); + + /* Add system time to cpustat. */ + tmp = cputime_to_cputime64(cputime); +@@ -2570,6 +2622,7 @@ void scheduler_tick(void) + if (p == rq->idle) { + if (wake_priority_sleeper(rq)) + goto out; ++ vx_idle_resched(rq); + rebalance_tick(cpu, rq, SCHED_IDLE); + return; + } +@@ -2602,7 +2655,7 @@ void scheduler_tick(void) + } + goto out_unlock; + } +- if (!--p->time_slice) { ++ if (vx_need_resched(p, --p->time_slice, cpu)) { + dequeue_task(p, rq->active); + set_tsk_need_resched(p); + p->prio = effective_prio(p); +@@ -2926,15 +2979,26 @@ need_resched_nonpreemptible: + unlikely(signal_pending(prev)))) + prev->state = TASK_RUNNING; + else { +- if (prev->state == TASK_UNINTERRUPTIBLE) ++ if (prev->state == TASK_UNINTERRUPTIBLE) { + rq->nr_uninterruptible++; ++ vx_uninterruptible_inc(prev); ++ } + deactivate_task(prev, rq); + } + } + + cpu = smp_processor_id(); ++ vx_set_rq_time(rq, jiffies); ++try_unhold: ++ vx_try_unhold(rq, cpu); ++pick_next: ++ + if (unlikely(!rq->nr_running)) { + go_idle: ++ /* can we skip idle time? */ ++ if (vx_try_skip(rq)) ++ goto try_unhold; ++ + idle_balance(cpu, rq); + if (!rq->nr_running) { + next = rq->idle; +@@ -2979,6 +3043,10 @@ go_idle: + queue = array->queue + idx; + next = list_entry(queue->next, task_t, run_list); + ++ /* check before we schedule this context */ ++ if (!vx_schedule(next, rq, cpu)) ++ goto pick_next; ++ + if (!rt_task(next) && next->activated > 0) { + unsigned long long delta = now - next->timestamp; + if (unlikely((long long)(now - next->timestamp) < 0)) +@@ -3534,7 +3602,7 @@ asmlinkage long sys_nice(int increment) + nice = 19; + + if (increment < 0 && !can_nice(current, nice)) +- return -EPERM; ++ return vx_flags(VXF_IGNEG_NICE, 0) ? 0 : -EPERM; + + retval = security_task_setnice(current, nice); + if (retval) +@@ -3694,6 +3762,7 @@ recheck: + oldprio = p->prio; + __setscheduler(p, policy, param->sched_priority); + if (array) { ++ vx_activate_task(p); + __activate_task(p, rq); + /* + * Reschedule if we are currently running on this runqueue and +@@ -6037,7 +6106,10 @@ void __init sched_init(void) + INIT_LIST_HEAD(&rq->migration_queue); + #endif + atomic_set(&rq->nr_iowait, 0); +- ++#ifdef CONFIG_VSERVER_HARDCPU ++ INIT_LIST_HEAD(&rq->hold_queue); ++ rq->nr_onhold = 0; ++#endif + for (j = 0; j < 2; j++) { + array = rq->arrays + j; + for (k = 0; k < MAX_PRIO; k++) { +@@ -6106,6 +6178,7 @@ void normalize_rt_tasks(void) + deactivate_task(p, task_rq(p)); + __setscheduler(p, SCHED_NORMAL, 0); + if (array) { ++ vx_activate_task(p); + __activate_task(p, task_rq(p)); + resched_task(rq->curr); + } +Index: linux-2.6.16/kernel/sched_hard.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/sched_hard.h +@@ -0,0 +1,315 @@ ++#ifndef _VX_SCHED_HARD_H ++#define _VX_SCHED_HARD_H ++ ++#ifndef CONFIG_VSERVER ++#warning config options missing ++#endif ++ ++ ++#ifdef CONFIG_VSERVER_IDLELIMIT ++ ++/* ++ * vx_idle_resched - reschedule after maxidle ++ */ ++static inline ++void vx_idle_resched(runqueue_t *rq) ++{ ++ if (!--rq->idle_tokens && !list_empty(&rq->hold_queue)) ++ set_need_resched(); ++} ++ ++#else /* !CONFIG_VSERVER_IDLELIMIT */ ++ ++#define vx_idle_resched(rq) ++ ++#endif /* CONFIG_VSERVER_IDLELIMIT */ ++ ++ ++ ++#ifdef CONFIG_VSERVER_IDLETIME ++ ++#define vx_set_rq_min_skip(rq, min) \ ++ (rq)->idle_skip = (min) ++ ++#define vx_save_min_skip(ret, min, val) \ ++ __vx_save_min_skip(ret, min, val) ++ ++static inline ++void __vx_save_min_skip(int ret, int *min, int val) ++{ ++ if (ret > -2) ++ return; ++ if ((*min > val) || !*min) ++ *min = val; ++} ++ ++static inline ++int vx_try_skip(runqueue_t *rq) ++{ ++ /* artificially advance time */ ++ if (rq->idle_skip && !list_empty(&rq->hold_queue)) { ++ rq->idle_time += rq->idle_skip; ++ return 1; ++ } ++ return 0; ++} ++ ++#else /* !CONFIG_VSERVER_IDLETIME */ ++ ++#define vx_set_rq_min_skip(rq, min) \ ++ ({ int dummy = (min); dummy; }) ++ ++#define vx_save_min_skip(ret, min, val) ++ ++static inline ++int vx_try_skip(runqueue_t *rq) ++{ ++ return 0; ++} ++ ++#endif /* CONFIG_VSERVER_IDLETIME */ ++ ++ ++ ++#ifdef CONFIG_VSERVER_HARDCPU ++ ++#define vx_set_rq_max_idle(rq, max) \ ++ (rq)->idle_tokens = (max) ++ ++#define vx_save_max_idle(ret, min, val) \ ++ __vx_save_max_idle(ret, min, val) ++ ++static inline ++void __vx_save_max_idle(int ret, int *min, int val) ++{ ++ if (*min > val) ++ *min = val; ++} ++ ++ ++/* ++ * vx_hold_task - put a task on the hold queue ++ */ ++static inline ++void vx_hold_task(struct task_struct *p, runqueue_t *rq) ++{ ++ __deactivate_task(p, rq); ++ p->state |= TASK_ONHOLD; ++ /* a new one on hold */ ++ rq->nr_onhold++; ++ list_add_tail(&p->run_list, &rq->hold_queue); ++} ++ ++/* ++ * vx_unhold_task - put a task back to the runqueue ++ */ ++static inline ++void vx_unhold_task(struct task_struct *p, runqueue_t *rq) ++{ ++ list_del(&p->run_list); ++ /* one less waiting */ ++ rq->nr_onhold--; ++ p->state &= ~TASK_ONHOLD; ++ enqueue_task(p, rq->expired); ++ rq->nr_running++; ++ ++ if (p->static_prio < rq->best_expired_prio) ++ rq->best_expired_prio = p->static_prio; ++} ++ ++unsigned long nr_onhold(void) ++{ ++ unsigned long i, sum = 0; ++ ++ for_each_online_cpu(i) ++ sum += cpu_rq(i)->nr_onhold; ++ ++ return sum; ++} ++ ++ ++ ++static inline ++int __vx_tokens_avail(struct _vx_sched_pc *sched_pc) ++{ ++ return sched_pc->tokens; ++} ++ ++static inline ++void __vx_consume_token(struct _vx_sched_pc *sched_pc) ++{ ++ sched_pc->tokens--; ++} ++ ++static inline ++int vx_need_resched(struct task_struct *p, int slice, int cpu) ++{ ++ struct vx_info *vxi = p->vx_info; ++ ++ if (vxi) { ++ struct _vx_sched_pc *sched_pc = ++ &vx_per_cpu(vxi, sched_pc, cpu); ++ int tokens; ++ ++ /* maybe we can simplify that to decrement ++ the token counter unconditional? */ ++ ++ if ((tokens = __vx_tokens_avail(sched_pc)) > 0) ++ __vx_consume_token(sched_pc); ++ ++ /* for tokens > 0, one token was consumed */ ++ if (tokens < 2) ++ return 1; ++ } ++ return (slice == 0); ++} ++ ++ ++#define vx_set_rq_time(rq, time) do { \ ++ rq->norm_time = time; \ ++} while (0) ++ ++ ++static inline ++void vx_try_unhold(runqueue_t *rq, int cpu) ++{ ++ struct vx_info *vxi = NULL; ++ struct list_head *l, *n; ++ int maxidle = HZ; ++ int minskip = 0; ++ ++ /* nothing to do? */ ++ if (list_empty(&rq->hold_queue)) ++ return; ++ ++ list_for_each_safe(l, n, &rq->hold_queue) { ++ int ret, delta_min[2]; ++ struct _vx_sched_pc *sched_pc; ++ struct task_struct *p; ++ ++ p = list_entry(l, task_t, run_list); ++ if (vxi == p->vx_info) ++ continue; ++ ++ vxi = p->vx_info; ++ /* ignore paused contexts */ ++ if (vx_info_flags(vxi, VXF_SCHED_PAUSE, 0)) ++ continue; ++ ++ sched_pc = &vx_per_cpu(vxi, sched_pc, cpu); ++ ++ /* recalc tokens */ ++ ret = vx_tokens_recalc(sched_pc, ++ &rq->norm_time, &rq->idle_time, delta_min); ++ ++ if (ret > 0) { ++ /* we found a runable context */ ++ vx_unhold_task(p, rq); ++ break; ++ } ++ vx_save_max_idle(ret, &maxidle, delta_min[0]); ++ vx_save_min_skip(ret, &minskip, delta_min[1]); ++ } ++ vx_set_rq_max_idle(rq, maxidle); ++ vx_set_rq_min_skip(rq, minskip); ++} ++ ++ ++static inline ++int vx_schedule(struct task_struct *next, runqueue_t *rq, int cpu) ++{ ++ struct vx_info *vxi = next->vx_info; ++ struct _vx_sched_pc *sched_pc; ++ int delta_min[2]; ++ int flags, ret; ++ ++ if (!vxi) ++ return 1; ++ ++ flags = vxi->vx_flags; ++ ++ if (unlikely(vx_check_flags(flags , VXF_SCHED_PAUSE, 0))) ++ goto put_on_hold; ++ if (!vx_check_flags(flags , VXF_SCHED_HARD|VXF_SCHED_PRIO, 0)) ++ return 1; ++ ++ sched_pc = &vx_per_cpu(vxi, sched_pc, cpu); ++#ifdef CONFIG_SMP ++ /* update scheduler params */ ++ if (cpu_isset(cpu, vxi->sched.update)) { ++ vx_update_sched_param(&vxi->sched, sched_pc); ++ cpu_clear(cpu, vxi->sched.update); ++ } ++#endif ++ ret = vx_tokens_recalc(sched_pc, ++ &rq->norm_time, &rq->idle_time, delta_min); ++ ++ if (!vx_check_flags(flags , VXF_SCHED_HARD, 0)) ++ return 1; ++ ++ if (unlikely(ret < 0)) { ++ vx_save_max_idle(ret, &rq->idle_tokens, delta_min[0]); ++ vx_save_min_skip(ret, &rq->idle_skip, delta_min[1]); ++ put_on_hold: ++ vx_hold_task(next, rq); ++ return 0; ++ } ++ return 1; ++} ++ ++ ++#else /* CONFIG_VSERVER_HARDCPU */ ++ ++static inline ++void vx_hold_task(struct task_struct *p, runqueue_t *rq) ++{ ++ return; ++} ++ ++static inline ++void vx_unhold_task(struct task_struct *p, runqueue_t *rq) ++{ ++ return; ++} ++ ++unsigned long nr_onhold(void) ++{ ++ return 0; ++} ++ ++ ++static inline ++int vx_need_resched(struct task_struct *p, int slice, int cpu) ++{ ++ return (slice == 0); ++} ++ ++ ++#define vx_set_rq_time(rq, time) ++ ++static inline ++void vx_try_unhold(runqueue_t *rq, int cpu) ++{ ++ return; ++} ++ ++static inline ++int vx_schedule(struct task_struct *next, runqueue_t *rq, int cpu) ++{ ++ struct vx_info *vxi = next->vx_info; ++ struct _vx_sched_pc *sched_pc; ++ int delta_min[2]; ++ int ret; ++ ++ if (!vx_info_flags(vxi, VXF_SCHED_PRIO, 0)) ++ return 1; ++ ++ sched_pc = &vx_per_cpu(vxi, sched_pc, cpu); ++ ret = vx_tokens_recalc(sched_pc, ++ &rq->norm_time, &rq->idle_time, delta_min); ++ return 1; ++} ++ ++#endif /* CONFIG_VSERVER_HARDCPU */ ++ ++#endif /* _VX_SCHED_HARD_H */ +Index: linux-2.6.16/kernel/signal.c +=================================================================== +--- linux-2.6.16.orig/kernel/signal.c ++++ linux-2.6.16/kernel/signal.c +@@ -26,6 +26,7 @@ + #include <linux/signal.h> + #include <linux/audit.h> + #include <linux/capability.h> ++#include <linux/vs_pid.h> + #include <asm/param.h> + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -676,18 +677,27 @@ static int rm_from_queue(unsigned long m + static int check_kill_permission(int sig, struct siginfo *info, + struct task_struct *t) + { ++ int user; + int error = -EINVAL; ++ + if (!valid_signal(sig)) + return error; ++ ++ user = ((info == SEND_SIG_NOINFO) || ++ (!is_si_special(info) && SI_FROMUSER(info))); ++ + error = -EPERM; +- if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info))) +- && ((sig != SIGCONT) || ++ if (user && ((sig != SIGCONT) || + (current->signal->session != t->signal->session)) + && (current->euid ^ t->suid) && (current->euid ^ t->uid) + && (current->uid ^ t->suid) && (current->uid ^ t->uid) + && !capable(CAP_KILL)) + return error; + ++ error = -ESRCH; ++ if (user && !vx_check(vx_task_xid(t), VX_ADMIN|VX_IDENT)) ++ return error; ++ + error = security_task_kill(t, info, sig); + if (!error) + audit_signal_info(sig, t); /* Let audit system see the signal */ +@@ -1991,6 +2001,11 @@ relock: + if (current->pid == 1) + continue; + ++ /* virtual init is protected against user signals */ ++ if ((info->si_code == SI_USER) && ++ vx_current_initpid(current->pid)) ++ continue; ++ + if (sig_kernel_stop(signr)) { + /* + * The default action is to stop all threads in +Index: linux-2.6.16/kernel/softirq.c +=================================================================== +--- linux-2.6.16.orig/kernel/softirq.c ++++ linux-2.6.16/kernel/softirq.c +@@ -16,6 +16,7 @@ + #include <linux/cpu.h> + #include <linux/kthread.h> + #include <linux/rcupdate.h> ++#include <linux/vs_context.h> + + #include <asm/irq.h> + /* +@@ -73,6 +74,7 @@ static inline void wakeup_softirqd(void) + + asmlinkage void __do_softirq(void) + { ++ struct vx_info_save vxis; + struct softirq_action *h; + __u32 pending; + int max_restart = MAX_SOFTIRQ_RESTART; +@@ -81,6 +83,7 @@ asmlinkage void __do_softirq(void) + pending = local_softirq_pending(); + + local_bh_disable(); ++ __enter_vx_admin(&vxis); + cpu = smp_processor_id(); + restart: + /* Reset the pending bitmask before enabling irqs */ +@@ -108,6 +111,7 @@ restart: + if (pending) + wakeup_softirqd(); + ++ __leave_vx_admin(&vxis); + __local_bh_enable(); + } + +Index: linux-2.6.16/kernel/sys.c +=================================================================== +--- linux-2.6.16.orig/kernel/sys.c ++++ linux-2.6.16/kernel/sys.c +@@ -11,6 +11,7 @@ + #include <linux/mman.h> + #include <linux/smp_lock.h> + #include <linux/notifier.h> ++#include <linux/kmod.h> + #include <linux/reboot.h> + #include <linux/prctl.h> + #include <linux/init.h> +@@ -30,6 +31,8 @@ + #include <linux/tty.h> + #include <linux/signal.h> + #include <linux/cn_proc.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vs_pid.h> + + #include <linux/compat.h> + #include <linux/syscalls.h> +@@ -227,6 +230,8 @@ EXPORT_SYMBOL(unregister_reboot_notifier + #ifndef CONFIG_SECURITY + int capable(int cap) + { ++ if (vx_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap)) ++ return 0; + if (cap_raised(current->cap_effective, cap)) { + current->flags |= PF_SUPERPRIV; + return 1; +@@ -246,7 +251,10 @@ static int set_one_prio(struct task_stru + goto out; + } + if (niceval < task_nice(p) && !can_nice(p, niceval)) { +- error = -EACCES; ++ if (vx_flags(VXF_IGNEG_NICE, 0)) ++ error = 0; ++ else ++ error = -EACCES; + goto out; + } + no_nice = security_task_setnice(p, niceval); +@@ -298,7 +306,8 @@ asmlinkage long sys_setpriority(int whic + if (!who) + who = current->uid; + else +- if ((who != current->uid) && !(user = find_user(who))) ++ if ((who != current->uid) && ++ !(user = find_user(vx_current_xid(), who))) + goto out_unlock; /* No processes for this user */ + + do_each_thread(g, p) +@@ -356,7 +365,8 @@ asmlinkage long sys_getpriority(int whic + if (!who) + who = current->uid; + else +- if ((who != current->uid) && !(user = find_user(who))) ++ if ((who != current->uid) && ++ !(user = find_user(vx_current_xid(), who))) + goto out_unlock; /* No processes for this user */ + + do_each_thread(g, p) +@@ -473,6 +483,9 @@ void kernel_power_off(void) + machine_power_off(); + } + EXPORT_SYMBOL_GPL(kernel_power_off); ++ ++long vs_reboot(unsigned int, void *); ++ + /* + * Reboot system call: for obvious reasons only root may call it, + * and even root needs to set up some magic numbers in the registers +@@ -503,6 +516,9 @@ asmlinkage long sys_reboot(int magic1, i + if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off) + cmd = LINUX_REBOOT_CMD_HALT; + ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return vs_reboot(cmd, arg); ++ + lock_kernel(); + switch (cmd) { + case LINUX_REBOOT_CMD_RESTART: +@@ -690,7 +706,7 @@ static int set_user(uid_t new_ruid, int + { + struct user_struct *new_user; + +- new_user = alloc_uid(new_ruid); ++ new_user = alloc_uid(vx_current_xid(), new_ruid); + if (!new_user) + return -EAGAIN; + +@@ -1099,15 +1115,18 @@ asmlinkage long sys_setpgid(pid_t pid, p + { + struct task_struct *p; + struct task_struct *group_leader = current->group_leader; ++ pid_t rpgid; + int err = -EINVAL; + + if (!pid) +- pid = group_leader->pid; ++ pid = vx_map_pid(group_leader->pid); + if (!pgid) + pgid = pid; + if (pgid < 0) + return -EINVAL; + ++ rpgid = vx_rmap_pid(pgid); ++ + /* From this point forward we keep holding onto the tasklist lock + * so that our parent does not change from under us. -DaveM + */ +@@ -1142,22 +1161,22 @@ asmlinkage long sys_setpgid(pid_t pid, p + if (pgid != pid) { + struct task_struct *p; + +- do_each_task_pid(pgid, PIDTYPE_PGID, p) { ++ do_each_task_pid(rpgid, PIDTYPE_PGID, p) { + if (p->signal->session == group_leader->signal->session) + goto ok_pgid; +- } while_each_task_pid(pgid, PIDTYPE_PGID, p); ++ } while_each_task_pid(rpgid, PIDTYPE_PGID, p); + goto out; + } + + ok_pgid: +- err = security_task_setpgid(p, pgid); ++ err = security_task_setpgid(p, rpgid); + if (err) + goto out; + +- if (process_group(p) != pgid) { ++ if (process_group(p) != rpgid) { + detach_pid(p, PIDTYPE_PGID); +- p->signal->pgrp = pgid; +- attach_pid(p, PIDTYPE_PGID, pgid); ++ p->signal->pgrp = rpgid; ++ attach_pid(p, PIDTYPE_PGID, rpgid); + } + + err = 0; +@@ -1170,7 +1189,7 @@ out: + asmlinkage long sys_getpgid(pid_t pid) + { + if (!pid) { +- return process_group(current); ++ return vx_rmap_pid(process_group(current)); + } else { + int retval; + struct task_struct *p; +@@ -1182,7 +1201,7 @@ asmlinkage long sys_getpgid(pid_t pid) + if (p) { + retval = security_task_getpgid(p); + if (!retval) +- retval = process_group(p); ++ retval = vx_rmap_pid(process_group(p)); + } + read_unlock(&tasklist_lock); + return retval; +@@ -1518,7 +1537,7 @@ asmlinkage long sys_newuname(struct new_ + int errno = 0; + + down_read(&uts_sem); +- if (copy_to_user(name,&system_utsname,sizeof *name)) ++ if (copy_to_user(name, vx_new_utsname(), sizeof *name)) + errno = -EFAULT; + up_read(&uts_sem); + return errno; +@@ -1529,15 +1548,17 @@ asmlinkage long sys_sethostname(char __u + int errno; + char tmp[__NEW_UTS_LEN]; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SET_UTSNAME)) + return -EPERM; + if (len < 0 || len > __NEW_UTS_LEN) + return -EINVAL; + down_write(&uts_sem); + errno = -EFAULT; + if (!copy_from_user(tmp, name, len)) { +- memcpy(system_utsname.nodename, tmp, len); +- system_utsname.nodename[len] = 0; ++ char *ptr = vx_new_uts(nodename); ++ ++ memcpy(ptr, tmp, len); ++ ptr[len] = 0; + errno = 0; + } + up_write(&uts_sem); +@@ -1549,15 +1570,17 @@ asmlinkage long sys_sethostname(char __u + asmlinkage long sys_gethostname(char __user *name, int len) + { + int i, errno; ++ char *ptr; + + if (len < 0) + return -EINVAL; + down_read(&uts_sem); +- i = 1 + strlen(system_utsname.nodename); ++ ptr = vx_new_uts(nodename); ++ i = 1 + strlen(ptr); + if (i > len) + i = len; + errno = 0; +- if (copy_to_user(name, system_utsname.nodename, i)) ++ if (copy_to_user(name, ptr, i)) + errno = -EFAULT; + up_read(&uts_sem); + return errno; +@@ -1574,7 +1597,7 @@ asmlinkage long sys_setdomainname(char _ + int errno; + char tmp[__NEW_UTS_LEN]; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SET_UTSNAME)) + return -EPERM; + if (len < 0 || len > __NEW_UTS_LEN) + return -EINVAL; +@@ -1582,8 +1605,10 @@ asmlinkage long sys_setdomainname(char _ + down_write(&uts_sem); + errno = -EFAULT; + if (!copy_from_user(tmp, name, len)) { +- memcpy(system_utsname.domainname, tmp, len); +- system_utsname.domainname[len] = 0; ++ char *ptr = vx_new_uts(domainname); ++ ++ memcpy(ptr, tmp, len); ++ ptr[len] = 0; + errno = 0; + } + up_write(&uts_sem); +@@ -1640,7 +1665,7 @@ asmlinkage long sys_setrlimit(unsigned i + return -EINVAL; + old_rlim = current->signal->rlim + resource; + if ((new_rlim.rlim_max > old_rlim->rlim_max) && +- !capable(CAP_SYS_RESOURCE)) ++ !capable(CAP_SYS_RESOURCE) && !vx_ccaps(VXC_SET_RLIMIT)) + return -EPERM; + if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > NR_OPEN) + return -EPERM; +Index: linux-2.6.16/kernel/sysctl.c +=================================================================== +--- linux-2.6.16.orig/kernel/sysctl.c ++++ linux-2.6.16/kernel/sysctl.c +@@ -46,6 +46,7 @@ + #include <linux/syscalls.h> + #include <linux/nfs_fs.h> + #include <linux/acpi.h> ++#include <linux/vserver/cvirt.h> + + #include <asm/uaccess.h> + #include <asm/processor.h> +@@ -92,6 +93,7 @@ extern char modprobe_path[]; + #ifdef CONFIG_FB_SPLASH + extern char fbsplash_path[]; + #endif ++extern char vshelper_path[]; + #ifdef CONFIG_CHR_DEV_SG + extern int sg_big_buff; + #endif +@@ -250,6 +252,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.sysname), + .mode = 0444, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -259,6 +262,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.release), + .mode = 0444, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -268,6 +272,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.version), + .mode = 0444, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -277,6 +282,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.nodename), + .mode = 0644, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -286,6 +292,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.domainname), + .mode = 0644, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -433,6 +440,15 @@ static ctl_table kern_table[] = { + .strategy = &sysctl_string, + }, + #endif ++ { ++ .ctl_name = KERN_VSHELPER, ++ .procname = "vshelper", ++ .data = &vshelper_path, ++ .maxlen = 256, ++ .mode = 0644, ++ .proc_handler = &proc_dostring, ++ .strategy = &sysctl_string, ++ }, + #ifdef CONFIG_CHR_DEV_SG + { + .ctl_name = KERN_SG_BIG_BUFF, +@@ -1588,16 +1604,20 @@ static ssize_t proc_writesys(struct file + int proc_dostring(ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +- size_t len; ++ size_t len, maxlen; + char __user *p; + char c; ++ void *data; ++ ++ data = table->data; ++ maxlen = table->maxlen; ++ ++ if (!data || !maxlen || !*lenp || (*ppos && !write)) ++ return (*lenp = 0); + +- if (!table->data || !table->maxlen || !*lenp || +- (*ppos && !write)) { +- *lenp = 0; +- return 0; +- } +- ++ if (table->virt_handler) ++ table->virt_handler(table, write, filp->f_xid, &data, &maxlen); ++ + if (write) { + len = 0; + p = buffer; +@@ -1608,20 +1628,20 @@ int proc_dostring(ctl_table *table, int + break; + len++; + } +- if (len >= table->maxlen) +- len = table->maxlen-1; +- if(copy_from_user(table->data, buffer, len)) ++ if (len >= maxlen) ++ len = maxlen-1; ++ if(copy_from_user(data, buffer, len)) + return -EFAULT; +- ((char *) table->data)[len] = 0; ++ ((char *) data)[len] = 0; + *ppos += *lenp; + } else { +- len = strlen(table->data); +- if (len > table->maxlen) +- len = table->maxlen; ++ len = strlen(data); ++ if (len > maxlen) ++ len = maxlen; + if (len > *lenp) + len = *lenp; + if (len) +- if(copy_to_user(buffer, table->data, len)) ++ if(copy_to_user(buffer, data, len)) + return -EFAULT; + if (len < *lenp) { + if(put_user('\n', ((char __user *) buffer) + len)) +Index: linux-2.6.16/kernel/timer.c +=================================================================== +--- linux-2.6.16.orig/kernel/timer.c ++++ linux-2.6.16/kernel/timer.c +@@ -34,6 +34,9 @@ + #include <linux/cpu.h> + #include <linux/syscalls.h> + #include <linux/delay.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vs_pid.h> ++#include <linux/vserver/sched.h> + + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -972,12 +975,6 @@ asmlinkage unsigned long sys_alarm(unsig + + #endif + +-#ifndef __alpha__ +- +-/* +- * The Alpha uses getxpid, getxuid, and getxgid instead. Maybe this +- * should be moved into arch/i386 instead? +- */ + + /** + * sys_getpid - return the thread group id of the current process +@@ -990,7 +987,7 @@ asmlinkage unsigned long sys_alarm(unsig + */ + asmlinkage long sys_getpid(void) + { +- return current->tgid; ++ return vx_map_tgid(current->tgid); + } + + /* +@@ -1034,9 +1031,23 @@ asmlinkage long sys_getppid(void) + #endif + break; + } +- return pid; ++ return vx_map_pid(pid); + } + ++#ifdef __alpha__ ++ ++/* ++ * The Alpha uses getxpid, getxuid, and getxgid instead. ++ */ ++ ++asmlinkage long do_getxpid(long *ppid) ++{ ++ *ppid = sys_getppid(); ++ return sys_getpid(); ++} ++ ++#else /* _alpha_ */ ++ + asmlinkage long sys_getuid(void) + { + /* Only we change this so SMP safe */ +@@ -1197,6 +1208,8 @@ asmlinkage long sys_sysinfo(struct sysin + tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC; + tp.tv_sec++; + } ++ if (vx_flags(VXF_VIRT_UPTIME, 0)) ++ vx_vsi_uptime(&tp, NULL); + val.uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0); + + val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT); +Index: linux-2.6.16/kernel/user.c +=================================================================== +--- linux-2.6.16.orig/kernel/user.c ++++ linux-2.6.16/kernel/user.c +@@ -23,8 +23,8 @@ + #define UIDHASH_BITS (CONFIG_BASE_SMALL ? 3 : 8) + #define UIDHASH_SZ (1 << UIDHASH_BITS) + #define UIDHASH_MASK (UIDHASH_SZ - 1) +-#define __uidhashfn(uid) (((uid >> UIDHASH_BITS) + uid) & UIDHASH_MASK) +-#define uidhashentry(uid) (uidhash_table + __uidhashfn((uid))) ++#define __uidhashfn(xid,uid) ((((uid) >> UIDHASH_BITS) + ((uid)^(xid))) & UIDHASH_MASK) ++#define uidhashentry(xid,uid) (uidhash_table + __uidhashfn((xid),(uid))) + + static kmem_cache_t *uid_cachep; + static struct list_head uidhash_table[UIDHASH_SZ]; +@@ -66,7 +66,7 @@ static inline void uid_hash_remove(struc + list_del(&up->uidhash_list); + } + +-static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent) ++static inline struct user_struct *uid_hash_find(xid_t xid, uid_t uid, struct list_head *hashent) + { + struct list_head *up; + +@@ -75,7 +75,7 @@ static inline struct user_struct *uid_ha + + user = list_entry(up, struct user_struct, uidhash_list); + +- if(user->uid == uid) { ++ if(user->uid == uid && user->xid == xid) { + atomic_inc(&user->__count); + return user; + } +@@ -90,13 +90,13 @@ static inline struct user_struct *uid_ha + * + * If the user_struct could not be found, return NULL. + */ +-struct user_struct *find_user(uid_t uid) ++struct user_struct *find_user(xid_t xid, uid_t uid) + { + struct user_struct *ret; + unsigned long flags; + + spin_lock_irqsave(&uidhash_lock, flags); +- ret = uid_hash_find(uid, uidhashentry(uid)); ++ ret = uid_hash_find(xid, uid, uidhashentry(xid, uid)); + spin_unlock_irqrestore(&uidhash_lock, flags); + return ret; + } +@@ -116,13 +116,13 @@ void free_uid(struct user_struct *up) + local_irq_restore(flags); + } + +-struct user_struct * alloc_uid(uid_t uid) ++struct user_struct * alloc_uid(xid_t xid, uid_t uid) + { +- struct list_head *hashent = uidhashentry(uid); ++ struct list_head *hashent = uidhashentry(xid, uid); + struct user_struct *up; + + spin_lock_irq(&uidhash_lock); +- up = uid_hash_find(uid, hashent); ++ up = uid_hash_find(xid, uid, hashent); + spin_unlock_irq(&uidhash_lock); + + if (!up) { +@@ -132,6 +132,7 @@ struct user_struct * alloc_uid(uid_t uid + if (!new) + return NULL; + new->uid = uid; ++ new->xid = xid; + atomic_set(&new->__count, 1); + atomic_set(&new->processes, 0); + atomic_set(&new->files, 0); +@@ -154,7 +155,7 @@ struct user_struct * alloc_uid(uid_t uid + * on adding the same user already.. + */ + spin_lock_irq(&uidhash_lock); +- up = uid_hash_find(uid, hashent); ++ up = uid_hash_find(xid, uid, hashent); + if (up) { + key_put(new->uid_keyring); + key_put(new->session_keyring); +@@ -200,7 +201,7 @@ static int __init uid_cache_init(void) + + /* Insert the root user immediately (init already runs as root) */ + spin_lock_irq(&uidhash_lock); +- uid_hash_insert(&root_user, uidhashentry(0)); ++ uid_hash_insert(&root_user, uidhashentry(0,0)); + spin_unlock_irq(&uidhash_lock); + + return 0; +Index: linux-2.6.16/kernel/vserver/Kconfig +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/Kconfig +@@ -0,0 +1,218 @@ ++# ++# Linux VServer configuration ++# ++ ++config VSERVER ++ bool ++ default y ++ ++config VSERVER_SECURITY ++ bool ++ depends on SECURITY ++ default y ++ select SECURITY_CAPABILITIES ++ ++config VSERVER_LEGACYNET ++ bool ++ depends on !VSERVER_NGNET ++ default y ++ ++menu "Linux VServer" ++ ++config VSERVER_LEGACY ++ bool "Enable Legacy Kernel API" ++ default y ++ help ++ This enables the legacy API used in vs1.xx, maintaining ++ compatibility with older vserver tools, and guest images ++ that are configured using the legacy method. This is ++ probably a good idea for now, for migration purposes. ++ ++ Note that some tools have not yet been altered to use ++ this API, so disabling this option may reduce some ++ functionality. ++ ++config VSERVER_LEGACY_VERSION ++ bool "Show a Legacy Version ID" ++ depends on VSERVER_LEGACY ++ default n ++ help ++ This shows a special legacy version to very old tools ++ which do not handle the current version correctly. ++ ++ This will probably disable some features of newer tools ++ so better avoid it, unless you really, really need it ++ for backwards compatibility. ++ ++config VSERVER_DYNAMIC_IDS ++ bool "Enable dynamic context IDs" ++ depends on VSERVER_LEGACY ++ default y ++ help ++ This enables support of in kernel dynamic context IDs, ++ which is deprecated and will probably be removed in the ++ next release. ++ ++config VSERVER_NGNET ++ bool "Disable Legacy Networking Kernel API" ++ depends on EXPERIMENTAL ++ default n ++ help ++ This disables the legacy networking API which is required ++ by the chbind tool. Do not disable it unless you exactly ++ know what you are doing. ++ ++config VSERVER_COWBL ++ bool "Enable COW Immutable Link Breaking" ++ depends on EXPERIMENTAL ++ default y ++ help ++ This enables the COW (Copy-On-Write) link break code. ++ It allows you to treat unified files like normal files ++ when writing to them (which will implicitely break the ++ link and create a copy of the unified file) ++ ++config VSERVER_PROC_SECURE ++ bool "Enable Proc Security" ++ depends on PROC_FS ++ default y ++ help ++ This configures ProcFS security to initially hide ++ non-process entries for all contexts except the main and ++ spectator context (i.e. for all guests), which is a secure ++ default. ++ ++ (note: on 1.2x the entries were visible by default) ++ ++config VSERVER_HARDCPU ++ bool "Enable Hard CPU Limits" ++ depends on EXPERIMENTAL ++ default n ++ help ++ Activate the Hard CPU Limits ++ ++ This will compile in code that allows the Token Bucket ++ Scheduler to put processes on hold when a context's ++ tokens are depleted (provided that its per-context ++ sched_hard flag is set). ++ ++ Processes belonging to that context will not be able ++ to consume CPU resources again until a per-context ++ configured minimum of tokens has been reached. ++ ++config VSERVER_IDLETIME ++ bool "Avoid idle CPUs by skipping Time" ++ depends on VSERVER_HARDCPU ++ default n ++ help ++ This option allows the scheduler to artificially ++ advance time (per cpu) when otherwise the idle ++ task would be scheduled, thus keeping the cpu ++ busy and sharing the available resources among ++ certain contexts. ++ ++config VSERVER_IDLELIMIT ++ bool "Limit the IDLE task" ++ depends on VSERVER_HARDCPU ++ default n ++ help ++ Limit the idle slices, so the the next context ++ will be scheduled as soon as possible. ++ ++ This might improve interactivity and latency, but ++ will also marginally increase scheduling overhead. ++ ++choice ++ prompt "Persistent Inode Tagging" ++ default TAGGING_ID24 ++ help ++ This adds persistent context information to filesystems ++ mounted with the tagxid option. Tagging is a requirement ++ for per-context disk limits and per-context quota. ++ ++ ++config TAGGING_NONE ++ bool "Disabled" ++ help ++ do not store per-context information in inodes. ++ ++config TAGGING_UID16 ++ bool "UID16/GID32" ++ help ++ reduces UID to 16 bit, but leaves GID at 32 bit. ++ ++config TAGGING_GID16 ++ bool "UID32/GID16" ++ help ++ reduces GID to 16 bit, but leaves UID at 32 bit. ++ ++config TAGGING_ID24 ++ bool "UID24/GID24" ++ help ++ uses the upper 8bit from UID and GID for XID tagging ++ which leaves 24bit for UID/GID each, which should be ++ more than sufficient for normal use. ++ ++config TAGGING_INTERN ++ bool "UID32/GID32" ++ help ++ this uses otherwise reserved inode fields in the on ++ disk representation, which limits the use to a few ++ filesystems (currently ext2 and ext3) ++ ++config TAGGING_RUNTIME ++ bool "Runtime" ++ depends on EXPERIMENTAL ++ help ++ inodes are tagged when first accessed, this doesn't ++ require any persistant information, but might give ++ funny results for mixed access. ++ ++endchoice ++ ++config TAG_NFSD ++ bool "Tag NFSD User Auth and Files" ++ default n ++ help ++ Enable this if you do want the in-kernel NFS ++ Server to use the tagging specified above. ++ (will require patched clients too) ++ ++config PROPAGATE ++ bool "Enable Inode Tag Propagation" ++ default n ++ depends on EXPERIMENTAL ++ help ++ This allows for the tagid= mount option to specify ++ a tagid which is to be used for the entire mount ++ tree. ++ ++config VSERVER_DEBUG ++ bool "VServer Debugging Code" ++ default n ++ help ++ Set this to yes if you want to be able to activate ++ debugging output at runtime. It adds a probably small ++ overhead to all vserver related functions and ++ increases the kernel size by about 20k. ++ ++config VSERVER_HISTORY ++ bool "VServer History Tracing" ++ depends on VSERVER_DEBUG ++ default n ++ help ++ Set this to yes if you want to record the history of ++ linux-vserver activities, so they can be replayed in ++ the event of a kernel panic or oops. ++ ++config VSERVER_HISTORY_SIZE ++ int "Per-CPU History Size (32-65536)" ++ depends on VSERVER_HISTORY ++ range 32 65536 ++ default 64 ++ help ++ This allows you to specify the number of entries in ++ the per-CPU history buffer. ++ ++endmenu ++ +Index: linux-2.6.16/kernel/vserver/Makefile +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/Makefile +@@ -0,0 +1,16 @@ ++# ++# Makefile for the Linux vserver routines. ++# ++ ++ ++obj-y += vserver.o ++ ++vserver-y := switch.o context.o namespace.o sched.o network.o inode.o \ ++ limit.o cvirt.o signal.o helper.o init.o dlimit.o ++ ++vserver-$(CONFIG_PROC_FS) += proc.o ++vserver-$(CONFIG_VSERVER_DEBUG) += sysctl.o debug.o ++vserver-$(CONFIG_VSERVER_LEGACY) += legacy.o ++vserver-$(CONFIG_VSERVER_LEGACYNET) += legacynet.o ++vserver-$(CONFIG_VSERVER_HISTORY) += history.o ++ +Index: linux-2.6.16/kernel/vserver/context.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/context.c +@@ -0,0 +1,986 @@ ++/* ++ * linux/kernel/vserver/context.c ++ * ++ * Virtual Server: Context Support ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 context helper ++ * V0.02 vx_ctx_kill syscall command ++ * V0.03 replaced context_info calls ++ * V0.04 redesign of struct (de)alloc ++ * V0.05 rlimit basic implementation ++ * V0.06 task_xid and info commands ++ * V0.07 context flags and caps ++ * V0.08 switch to RCU based hash ++ * V0.09 revert to non RCU for now ++ * V0.10 and back to working RCU hash ++ * V0.11 and back to locking again ++ * V0.12 referenced context store ++ * V0.13 separate per cpu data ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/slab.h> ++#include <linux/types.h> ++#include <linux/namespace.h> ++ ++#include <linux/sched.h> ++#include <linux/vserver/network.h> ++#include <linux/vserver/legacy.h> ++#include <linux/vserver/limit.h> ++#include <linux/vserver/debug.h> ++#include <linux/vserver/limit_int.h> ++ ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> ++#include <linux/vserver/context_cmd.h> ++ ++#include <linux/err.h> ++#include <asm/errno.h> ++ ++#include "cvirt_init.h" ++#include "limit_init.h" ++#include "sched_init.h" ++ ++ ++atomic_t vx_global_ctotal = ATOMIC_INIT(0); ++atomic_t vx_global_cactive = ATOMIC_INIT(0); ++ ++ ++/* now inactive context structures */ ++ ++static struct hlist_head vx_info_inactive = HLIST_HEAD_INIT; ++ ++static spinlock_t vx_info_inactive_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++/* __alloc_vx_info() ++ ++ * allocate an initialized vx_info struct ++ * doesn't make it visible (hash) */ ++ ++static struct vx_info *__alloc_vx_info(xid_t xid) ++{ ++ struct vx_info *new = NULL; ++ int cpu; ++ ++ vxdprintk(VXD_CBIT(xid, 0), "alloc_vx_info(%d)*", xid); ++ ++ /* would this benefit from a slab cache? */ ++ new = kmalloc(sizeof(struct vx_info), GFP_KERNEL); ++ if (!new) ++ return 0; ++ ++ memset (new, 0, sizeof(struct vx_info)); ++#ifdef CONFIG_SMP ++ new->ptr_pc = alloc_percpu(struct _vx_info_pc); ++ if (!new->ptr_pc) ++ goto error; ++#endif ++ new->vx_id = xid; ++ INIT_HLIST_NODE(&new->vx_hlist); ++ atomic_set(&new->vx_usecnt, 0); ++ atomic_set(&new->vx_tasks, 0); ++ new->vx_parent = NULL; ++ new->vx_state = 0; ++ init_waitqueue_head(&new->vx_wait); ++ ++ /* prepare reaper */ ++ get_task_struct(child_reaper); ++ new->vx_reaper = child_reaper; ++ ++ /* rest of init goes here */ ++ vx_info_init_limit(&new->limit); ++ vx_info_init_sched(&new->sched); ++ vx_info_init_cvirt(&new->cvirt); ++ vx_info_init_cacct(&new->cacct); ++ ++ /* per cpu data structures */ ++ for_each_cpu(cpu) { ++ vx_info_init_sched_pc( ++ &vx_per_cpu(new, sched_pc, cpu), cpu); ++ vx_info_init_cvirt_pc( ++ &vx_per_cpu(new, cvirt_pc, cpu), cpu); ++ } ++ ++ new->vx_flags = VXF_INIT_SET; ++ new->vx_bcaps = CAP_INIT_EFF_SET; ++ new->vx_ccaps = 0; ++ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "alloc_vx_info(%d) = %p", xid, new); ++ vxh_alloc_vx_info(new); ++ atomic_inc(&vx_global_ctotal); ++ return new; ++#ifdef CONFIG_SMP ++error: ++ kfree(new); ++ return 0; ++#endif ++} ++ ++/* __dealloc_vx_info() ++ ++ * final disposal of vx_info */ ++ ++static void __dealloc_vx_info(struct vx_info *vxi) ++{ ++ int cpu; ++ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "dealloc_vx_info(%p)", vxi); ++ vxh_dealloc_vx_info(vxi); ++ ++ vxi->vx_id = -1; ++ ++ vx_info_exit_limit(&vxi->limit); ++ vx_info_exit_sched(&vxi->sched); ++ vx_info_exit_cvirt(&vxi->cvirt); ++ vx_info_exit_cacct(&vxi->cacct); ++ ++ for_each_cpu(cpu) { ++ vx_info_exit_sched_pc( ++ &vx_per_cpu(vxi, sched_pc, cpu), cpu); ++ vx_info_exit_cvirt_pc( ++ &vx_per_cpu(vxi, cvirt_pc, cpu), cpu); ++ } ++ ++ vxi->vx_state |= VXS_RELEASED; ++ ++#ifdef CONFIG_SMP ++ free_percpu(vxi->ptr_pc); ++#endif ++ kfree(vxi); ++ atomic_dec(&vx_global_ctotal); ++} ++ ++static void __shutdown_vx_info(struct vx_info *vxi) ++{ ++ struct namespace *namespace; ++ struct fs_struct *fs; ++ ++ might_sleep(); ++ ++ vxi->vx_state |= VXS_SHUTDOWN; ++ vs_state_change(vxi, VSC_SHUTDOWN); ++ ++ namespace = xchg(&vxi->vx_namespace, NULL); ++ if (namespace) ++ put_namespace(namespace); ++ ++ fs = xchg(&vxi->vx_fs, NULL); ++ if (fs) ++ put_fs_struct(fs); ++} ++ ++/* exported stuff */ ++ ++void free_vx_info(struct vx_info *vxi) ++{ ++ /* context shutdown is mandatory */ ++ BUG_ON(!vx_info_state(vxi, VXS_SHUTDOWN)); ++ ++ BUG_ON(atomic_read(&vxi->vx_usecnt)); ++ BUG_ON(atomic_read(&vxi->vx_tasks)); ++ ++ BUG_ON(vx_info_state(vxi, VXS_HASHED)); ++ ++ BUG_ON(vxi->vx_namespace); ++ BUG_ON(vxi->vx_fs); ++ ++ spin_lock(&vx_info_inactive_lock); ++ hlist_del(&vxi->vx_hlist); ++ spin_unlock(&vx_info_inactive_lock); ++ ++ __dealloc_vx_info(vxi); ++} ++ ++ ++/* hash table for vx_info hash */ ++ ++#define VX_HASH_SIZE 13 ++ ++static struct hlist_head vx_info_hash[VX_HASH_SIZE] = ++ { [0 ... VX_HASH_SIZE-1] = HLIST_HEAD_INIT }; ++ ++static spinlock_t vx_info_hash_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++static inline unsigned int __hashval(xid_t xid) ++{ ++ return (xid % VX_HASH_SIZE); ++} ++ ++ ++ ++/* __hash_vx_info() ++ ++ * add the vxi to the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __hash_vx_info(struct vx_info *vxi) ++{ ++ struct hlist_head *head; ++ ++ vxd_assert_lock(&vx_info_hash_lock); ++ vxdprintk(VXD_CBIT(xid, 4), ++ "__hash_vx_info: %p[#%d]", vxi, vxi->vx_id); ++ vxh_hash_vx_info(vxi); ++ ++ /* context must not be hashed */ ++ BUG_ON(vx_info_state(vxi, VXS_HASHED)); ++ ++ vxi->vx_state |= VXS_HASHED; ++ head = &vx_info_hash[__hashval(vxi->vx_id)]; ++ hlist_add_head(&vxi->vx_hlist, head); ++ atomic_inc(&vx_global_cactive); ++} ++ ++/* __unhash_vx_info() ++ ++ * remove the vxi from the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __unhash_vx_info(struct vx_info *vxi) ++{ ++ vxd_assert_lock(&vx_info_hash_lock); ++ vxdprintk(VXD_CBIT(xid, 4), ++ "__unhash_vx_info: %p[#%d]", vxi, vxi->vx_id); ++ vxh_unhash_vx_info(vxi); ++ ++ /* context must be hashed */ ++ BUG_ON(!vx_info_state(vxi, VXS_HASHED)); ++ ++ vxi->vx_state &= ~VXS_HASHED; ++ hlist_del_init(&vxi->vx_hlist); ++ spin_lock(&vx_info_inactive_lock); ++ hlist_add_head(&vxi->vx_hlist, &vx_info_inactive); ++ spin_unlock(&vx_info_inactive_lock); ++ atomic_dec(&vx_global_cactive); ++} ++ ++ ++/* __lookup_vx_info() ++ ++ * requires the hash_lock to be held ++ * doesn't increment the vx_refcnt */ ++ ++static inline struct vx_info *__lookup_vx_info(xid_t xid) ++{ ++ struct hlist_head *head = &vx_info_hash[__hashval(xid)]; ++ struct hlist_node *pos; ++ struct vx_info *vxi; ++ ++ vxd_assert_lock(&vx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ vxi = hlist_entry(pos, struct vx_info, vx_hlist); ++ ++ if (vxi->vx_id == xid) ++ goto found; ++ } ++ vxi = NULL; ++found: ++ vxdprintk(VXD_CBIT(xid, 0), ++ "__lookup_vx_info(#%u): %p[#%u]", ++ xid, vxi, vxi?vxi->vx_id:0); ++ vxh_lookup_vx_info(vxi, xid); ++ return vxi; ++} ++ ++ ++/* __vx_dynamic_id() ++ ++ * find unused dynamic xid ++ * requires the hash_lock to be held */ ++ ++static inline xid_t __vx_dynamic_id(void) ++{ ++ static xid_t seq = MAX_S_CONTEXT; ++ xid_t barrier = seq; ++ ++ vxd_assert_lock(&vx_info_hash_lock); ++ do { ++ if (++seq > MAX_S_CONTEXT) ++ seq = MIN_D_CONTEXT; ++ if (!__lookup_vx_info(seq)) { ++ vxdprintk(VXD_CBIT(xid, 4), ++ "__vx_dynamic_id: [#%d]", seq); ++ return seq; ++ } ++ } while (barrier != seq); ++ return 0; ++} ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++/* __loc_vx_info() ++ ++ * locate or create the requested context ++ * get() it and if new hash it */ ++ ++static struct vx_info * __loc_vx_info(int id, int *err) ++{ ++ struct vx_info *new, *vxi = NULL; ++ ++ vxdprintk(VXD_CBIT(xid, 1), "loc_vx_info(%d)*", id); ++ ++ if (!(new = __alloc_vx_info(id))) { ++ *err = -ENOMEM; ++ return NULL; ++ } ++ ++ /* required to make dynamic xids unique */ ++ spin_lock(&vx_info_hash_lock); ++ ++ /* dynamic context requested */ ++ if (id == VX_DYNAMIC_ID) { ++#ifdef CONFIG_VSERVER_DYNAMIC_IDS ++ id = __vx_dynamic_id(); ++ if (!id) { ++ printk(KERN_ERR "no dynamic context available.\n"); ++ goto out_unlock; ++ } ++ new->vx_id = id; ++#else ++ printk(KERN_ERR "dynamic contexts disabled.\n"); ++ goto out_unlock; ++#endif ++ } ++ /* existing context requested */ ++ else if ((vxi = __lookup_vx_info(id))) { ++ /* context in setup is not available */ ++ if (vxi->vx_flags & VXF_STATE_SETUP) { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "loc_vx_info(%d) = %p (not available)", id, vxi); ++ vxi = NULL; ++ *err = -EBUSY; ++ } else { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "loc_vx_info(%d) = %p (found)", id, vxi); ++ get_vx_info(vxi); ++ *err = 0; ++ } ++ goto out_unlock; ++ } ++ ++ /* new context requested */ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "loc_vx_info(%d) = %p (new)", id, new); ++ __hash_vx_info(get_vx_info(new)); ++ vxi = new, new = NULL; ++ *err = 1; ++ ++out_unlock: ++ spin_unlock(&vx_info_hash_lock); ++ vxh_loc_vx_info(vxi, id); ++ if (new) ++ __dealloc_vx_info(new); ++ return vxi; ++} ++ ++#endif ++ ++/* __create_vx_info() ++ ++ * create the requested context ++ * get() and hash it */ ++ ++static struct vx_info * __create_vx_info(int id) ++{ ++ struct vx_info *new, *vxi = NULL; ++ ++ vxdprintk(VXD_CBIT(xid, 1), "create_vx_info(%d)*", id); ++ ++ if (!(new = __alloc_vx_info(id))) ++ return ERR_PTR(-ENOMEM); ++ ++ /* required to make dynamic xids unique */ ++ spin_lock(&vx_info_hash_lock); ++ ++ /* dynamic context requested */ ++ if (id == VX_DYNAMIC_ID) { ++#ifdef CONFIG_VSERVER_DYNAMIC_IDS ++ id = __vx_dynamic_id(); ++ if (!id) { ++ printk(KERN_ERR "no dynamic context available.\n"); ++ vxi = ERR_PTR(-EAGAIN); ++ goto out_unlock; ++ } ++ new->vx_id = id; ++#else ++ printk(KERN_ERR "dynamic contexts disabled.\n"); ++ vxi = ERR_PTR(-EINVAL); ++ goto out_unlock; ++#endif ++ } ++ /* static context requested */ ++ else if ((vxi = __lookup_vx_info(id))) { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "create_vx_info(%d) = %p (already there)", id, vxi); ++ if (vx_info_flags(vxi, VXF_STATE_SETUP, 0)) ++ vxi = ERR_PTR(-EBUSY); ++ else ++ vxi = ERR_PTR(-EEXIST); ++ goto out_unlock; ++ } ++#ifdef CONFIG_VSERVER_DYNAMIC_IDS ++ /* dynamic xid creation blocker */ ++ else if (id >= MIN_D_CONTEXT) { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "create_vx_info(%d) (dynamic rejected)", id); ++ vxi = ERR_PTR(-EINVAL); ++ goto out_unlock; ++ } ++#endif ++ ++ /* new context */ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "create_vx_info(%d) = %p (new)", id, new); ++ __hash_vx_info(get_vx_info(new)); ++ vxi = new, new = NULL; ++ ++out_unlock: ++ spin_unlock(&vx_info_hash_lock); ++ vxh_create_vx_info(IS_ERR(vxi)?NULL:vxi, id); ++ if (new) ++ __dealloc_vx_info(new); ++ return vxi; ++} ++ ++ ++/* exported stuff */ ++ ++ ++void unhash_vx_info(struct vx_info *vxi) ++{ ++ __shutdown_vx_info(vxi); ++ spin_lock(&vx_info_hash_lock); ++ __unhash_vx_info(vxi); ++ spin_unlock(&vx_info_hash_lock); ++ __wakeup_vx_info(vxi); ++} ++ ++ ++/* lookup_vx_info() ++ ++ * search for a vx_info and get() it ++ * negative id means current */ ++ ++struct vx_info *lookup_vx_info(int id) ++{ ++ struct vx_info *vxi = NULL; ++ ++ if (id < 0) { ++ vxi = get_vx_info(current->vx_info); ++ } else if (id > 1) { ++ spin_lock(&vx_info_hash_lock); ++ vxi = get_vx_info(__lookup_vx_info(id)); ++ spin_unlock(&vx_info_hash_lock); ++ } ++ return vxi; ++} ++ ++/* xid_is_hashed() ++ ++ * verify that xid is still hashed */ ++ ++int xid_is_hashed(xid_t xid) ++{ ++ int hashed; ++ ++ spin_lock(&vx_info_hash_lock); ++ hashed = (__lookup_vx_info(xid) != NULL); ++ spin_unlock(&vx_info_hash_lock); ++ return hashed; ++} ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++struct vx_info *lookup_or_create_vx_info(int id) ++{ ++ int err; ++ ++ return __loc_vx_info(id, &err); ++} ++ ++#endif ++ ++#ifdef CONFIG_PROC_FS ++ ++/* get_xid_list() ++ ++ * get a subset of hashed xids for proc ++ * assumes size is at least one */ ++ ++int get_xid_list(int index, unsigned int *xids, int size) ++{ ++ int hindex, nr_xids = 0; ++ ++ /* only show current and children */ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) { ++ if (index > 0) ++ return 0; ++ xids[nr_xids] = vx_current_xid(); ++ return 1; ++ } ++ ++ for (hindex = 0; hindex < VX_HASH_SIZE; hindex++) { ++ struct hlist_head *head = &vx_info_hash[hindex]; ++ struct hlist_node *pos; ++ ++ spin_lock(&vx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ struct vx_info *vxi; ++ ++ if (--index > 0) ++ continue; ++ ++ vxi = hlist_entry(pos, struct vx_info, vx_hlist); ++ xids[nr_xids] = vxi->vx_id; ++ if (++nr_xids >= size) { ++ spin_unlock(&vx_info_hash_lock); ++ goto out; ++ } ++ } ++ /* keep the lock time short */ ++ spin_unlock(&vx_info_hash_lock); ++ } ++out: ++ return nr_xids; ++} ++#endif ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++void dump_vx_info_inactive(int level) ++{ ++ struct hlist_node *entry, *next; ++ ++ hlist_for_each_safe(entry, next, &vx_info_inactive) { ++ struct vx_info *vxi = ++ list_entry(entry, struct vx_info, vx_hlist); ++ ++ dump_vx_info(vxi, level); ++ } ++} ++ ++#endif ++ ++int vx_migrate_user(struct task_struct *p, struct vx_info *vxi) ++{ ++ struct user_struct *new_user, *old_user; ++ ++ if (!p || !vxi) ++ BUG(); ++ new_user = alloc_uid(vxi->vx_id, p->uid); ++ if (!new_user) ++ return -ENOMEM; ++ ++ old_user = p->user; ++ if (new_user != old_user) { ++ atomic_inc(&new_user->processes); ++ atomic_dec(&old_user->processes); ++ p->user = new_user; ++ } ++ free_uid(old_user); ++ return 0; ++} ++ ++void vx_mask_bcaps(struct vx_info *vxi, struct task_struct *p) ++{ ++ p->cap_effective &= vxi->vx_bcaps; ++ p->cap_inheritable &= vxi->vx_bcaps; ++ p->cap_permitted &= vxi->vx_bcaps; ++} ++ ++ ++#include <linux/file.h> ++ ++static int vx_openfd_task(struct task_struct *tsk) ++{ ++ struct files_struct *files = tsk->files; ++ struct fdtable *fdt; ++ const unsigned long *bptr; ++ int count, total; ++ ++ /* no rcu_read_lock() because of spin_lock() */ ++ spin_lock(&files->file_lock); ++ fdt = files_fdtable(files); ++ bptr = fdt->open_fds->fds_bits; ++ count = fdt->max_fds / (sizeof(unsigned long) * 8); ++ for (total = 0; count > 0; count--) { ++ if (*bptr) ++ total += hweight_long(*bptr); ++ bptr++; ++ } ++ spin_unlock(&files->file_lock); ++ return total; ++} ++ ++/* ++ * migrate task to new context ++ * gets vxi, puts old_vxi on change ++ */ ++ ++int vx_migrate_task(struct task_struct *p, struct vx_info *vxi) ++{ ++ struct vx_info *old_vxi; ++ int ret = 0; ++ ++ if (!p || !vxi) ++ BUG(); ++ ++ old_vxi = task_get_vx_info(p); ++ if (old_vxi == vxi) ++ goto out; ++ ++ vxdprintk(VXD_CBIT(xid, 5), ++ "vx_migrate_task(%p,%p[#%d.%d])", p, vxi, ++ vxi->vx_id, atomic_read(&vxi->vx_usecnt)); ++ ++ if (!(ret = vx_migrate_user(p, vxi))) { ++ int openfd; ++ ++ task_lock(p); ++ openfd = vx_openfd_task(p); ++ ++ if (old_vxi) { ++ atomic_dec(&old_vxi->cvirt.nr_threads); ++ atomic_dec(&old_vxi->cvirt.nr_running); ++ __rlim_dec(&old_vxi->limit, RLIMIT_NPROC); ++ /* FIXME: what about the struct files here? */ ++ __rlim_sub(&old_vxi->limit, VLIMIT_OPENFD, openfd); ++ } ++ atomic_inc(&vxi->cvirt.nr_threads); ++ atomic_inc(&vxi->cvirt.nr_running); ++ __rlim_inc(&vxi->limit, RLIMIT_NPROC); ++ /* FIXME: what about the struct files here? */ ++ __rlim_add(&vxi->limit, VLIMIT_OPENFD, openfd); ++ ++ if (old_vxi) { ++ release_vx_info(old_vxi, p); ++ clr_vx_info(&p->vx_info); ++ } ++ claim_vx_info(vxi, p); ++ set_vx_info(&p->vx_info, vxi); ++ p->xid = vxi->vx_id; ++ ++ vxdprintk(VXD_CBIT(xid, 5), ++ "moved task %p into vxi:%p[#%d]", ++ p, vxi, vxi->vx_id); ++ ++ vx_mask_bcaps(vxi, p); ++ task_unlock(p); ++ } ++out: ++ put_vx_info(old_vxi); ++ return ret; ++} ++ ++int vx_set_reaper(struct vx_info *vxi, struct task_struct *p) ++{ ++ struct task_struct *old_reaper; ++ ++ if (!vxi) ++ return -EINVAL; ++ ++ vxdprintk(VXD_CBIT(xid, 6), ++ "vx_set_reaper(%p[#%d],%p[#%d,%d])", ++ vxi, vxi->vx_id, p, p->xid, p->pid); ++ ++ old_reaper = vxi->vx_reaper; ++ if (old_reaper == p) ++ return 0; ++ ++ /* set new child reaper */ ++ get_task_struct(p); ++ vxi->vx_reaper = p; ++ put_task_struct(old_reaper); ++ return 0; ++} ++ ++int vx_set_init(struct vx_info *vxi, struct task_struct *p) ++{ ++ if (!vxi) ++ return -EINVAL; ++ ++ vxdprintk(VXD_CBIT(xid, 6), ++ "vx_set_init(%p[#%d],%p[#%d,%d,%d])", ++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid); ++ ++ vxi->vx_initpid = p->tgid; ++ return 0; ++} ++ ++void vx_exit_init(struct vx_info *vxi, struct task_struct *p) ++{ ++ vxdprintk(VXD_CBIT(xid, 6), ++ "vx_exit_init(%p[#%d],%p[#%d,%d,%d])", ++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid); ++ ++ vxi->vx_initpid = 0; ++} ++ ++void vx_set_persistent(struct vx_info *vxi) ++{ ++ vxdprintk(VXD_CBIT(xid, 6), ++ "vx_set_persistent(%p[#%d])", vxi, vxi->vx_id); ++ ++ if (vx_info_flags(vxi, VXF_PERSISTENT, 0)) { ++ get_vx_info(vxi); ++ claim_vx_info(vxi, current); ++ } else { ++ release_vx_info(vxi, current); ++ put_vx_info(vxi); ++ } ++} ++ ++ ++/* task must be current or locked */ ++ ++void exit_vx_info(struct task_struct *p) ++{ ++ struct vx_info *vxi = p->vx_info; ++ ++ if (vxi) { ++ atomic_dec(&vxi->cvirt.nr_threads); ++ vx_nproc_dec(p); ++ ++ if (vxi->vx_initpid == p->tgid) ++ vx_exit_init(vxi, p); ++ if (vxi->vx_reaper == p) ++ vx_set_reaper(vxi, child_reaper); ++ release_vx_info(vxi, p); ++ } ++} ++ ++ ++/* vserver syscall commands below here */ ++ ++/* taks xid and vx_info functions */ ++ ++#include <asm/uaccess.h> ++ ++ ++int vc_task_xid(uint32_t id, void __user *data) ++{ ++ xid_t xid; ++ ++ if (id) { ++ struct task_struct *tsk; ++ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -EPERM; ++ ++ read_lock(&tasklist_lock); ++ tsk = find_task_by_real_pid(id); ++ xid = (tsk) ? tsk->xid : -ESRCH; ++ read_unlock(&tasklist_lock); ++ } ++ else ++ xid = vx_current_xid(); ++ return xid; ++} ++ ++ ++int vc_vx_info(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_vx_info_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.xid = vxi->vx_id; ++ vc_data.initpid = vxi->vx_initpid; ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++ ++/* context functions */ ++ ++int vc_ctx_create(uint32_t xid, void __user *data) ++{ ++ struct vcmd_ctx_create vc_data = { .flagword = VXF_INIT_SET }; ++ struct vx_info *new_vxi; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ if ((xid > MAX_S_CONTEXT) && (xid != VX_DYNAMIC_ID)) ++ return -EINVAL; ++ if (xid < 2) ++ return -EINVAL; ++ ++ new_vxi = __create_vx_info(xid); ++ if (IS_ERR(new_vxi)) ++ return PTR_ERR(new_vxi); ++ ++ /* initial flags */ ++ new_vxi->vx_flags = vc_data.flagword; ++ ++ /* get a reference for persistent contexts */ ++ if ((vc_data.flagword & VXF_PERSISTENT)) ++ vx_set_persistent(new_vxi); ++ ++ vs_state_change(new_vxi, VSC_STARTUP); ++ ret = new_vxi->vx_id; ++ vx_migrate_task(current, new_vxi); ++ /* if this fails, we might end up with a hashed vx_info */ ++ put_vx_info(new_vxi); ++ return ret; ++} ++ ++ ++int vc_ctx_migrate(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_migrate vc_data = { .flagword = 0 }; ++ struct vx_info *vxi; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ /* dirty hack until Spectator becomes a cap */ ++ if (id == 1) { ++ current->xid = 1; ++ return 0; ++ } ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ vx_migrate_task(current, vxi); ++ if (vc_data.flagword & VXM_SET_INIT) ++ vx_set_init(vxi, current); ++ if (vc_data.flagword & VXM_SET_REAPER) ++ vx_set_reaper(vxi, current); ++ put_vx_info(vxi); ++ return 0; ++} ++ ++ ++int vc_get_cflags(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_flags_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.flagword = vxi->vx_flags; ++ ++ /* special STATE flag handling */ ++ vc_data.mask = vx_mask_flags(~0UL, vxi->vx_flags, VXF_ONE_TIME); ++ ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_cflags(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_flags_v0 vc_data; ++ uint64_t mask, trigger; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ /* special STATE flag handling */ ++ mask = vx_mask_mask(vc_data.mask, vxi->vx_flags, VXF_ONE_TIME); ++ trigger = (mask & vxi->vx_flags) ^ (mask & vc_data.flagword); ++ ++ if (vxi == current->vx_info) { ++ if (trigger & VXF_STATE_SETUP) ++ vx_mask_bcaps(vxi, current); ++ if (trigger & VXF_STATE_INIT) { ++ vx_set_init(vxi, current); ++ vx_set_reaper(vxi, current); ++ } ++ } ++ ++ vxi->vx_flags = vx_mask_flags(vxi->vx_flags, ++ vc_data.flagword, mask); ++ if (trigger & VXF_PERSISTENT) ++ vx_set_persistent(vxi); ++ ++ put_vx_info(vxi); ++ return 0; ++} ++ ++int vc_get_ccaps(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.bcaps = vxi->vx_bcaps; ++ vc_data.ccaps = vxi->vx_ccaps; ++ vc_data.cmask = ~0UL; ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_ccaps(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vxi->vx_bcaps &= vc_data.bcaps; ++ vxi->vx_ccaps = vx_mask_flags(vxi->vx_ccaps, ++ vc_data.ccaps, vc_data.cmask); ++ put_vx_info(vxi); ++ return 0; ++} ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(free_vx_info); ++ +Index: linux-2.6.16/kernel/vserver/cvirt.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/cvirt.c +@@ -0,0 +1,259 @@ ++/* ++ * linux/kernel/vserver/cvirt.c ++ * ++ * Virtual Server: Context Virtualization ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from limit.c ++ * V0.02 added utsname stuff ++ * ++ */ ++ ++#include <linux/sched.h> ++#include <linux/sysctl.h> ++#include <linux/types.h> ++#include <linux/vs_context.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vserver/switch.h> ++#include <linux/vserver/cvirt_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle) ++{ ++ struct vx_info *vxi = current->vx_info; ++ ++ set_normalized_timespec(uptime, ++ uptime->tv_sec - vxi->cvirt.bias_uptime.tv_sec, ++ uptime->tv_nsec - vxi->cvirt.bias_uptime.tv_nsec); ++ if (!idle) ++ return; ++ set_normalized_timespec(idle, ++ idle->tv_sec - vxi->cvirt.bias_idle.tv_sec, ++ idle->tv_nsec - vxi->cvirt.bias_idle.tv_nsec); ++ return; ++} ++ ++uint64_t vx_idle_jiffies(void) ++{ ++ return init_task.utime + init_task.stime; ++} ++ ++ ++ ++static inline uint32_t __update_loadavg(uint32_t load, ++ int wsize, int delta, int n) ++{ ++ unsigned long long calc, prev; ++ ++ /* just set it to n */ ++ if (unlikely(delta >= wsize)) ++ return (n << FSHIFT); ++ ++ calc = delta * n; ++ calc <<= FSHIFT; ++ prev = (wsize - delta); ++ prev *= load; ++ calc += prev; ++ do_div(calc, wsize); ++ return calc; ++} ++ ++ ++void vx_update_load(struct vx_info *vxi) ++{ ++ uint32_t now, last, delta; ++ unsigned int nr_running, nr_uninterruptible; ++ unsigned int total; ++ ++ spin_lock(&vxi->cvirt.load_lock); ++ ++ now = jiffies; ++ last = vxi->cvirt.load_last; ++ delta = now - last; ++ ++ if (delta < 5*HZ) ++ goto out; ++ ++ nr_running = atomic_read(&vxi->cvirt.nr_running); ++ nr_uninterruptible = atomic_read(&vxi->cvirt.nr_uninterruptible); ++ total = nr_running + nr_uninterruptible; ++ ++ vxi->cvirt.load[0] = __update_loadavg(vxi->cvirt.load[0], ++ 60*HZ, delta, total); ++ vxi->cvirt.load[1] = __update_loadavg(vxi->cvirt.load[1], ++ 5*60*HZ, delta, total); ++ vxi->cvirt.load[2] = __update_loadavg(vxi->cvirt.load[2], ++ 15*60*HZ, delta, total); ++ ++ vxi->cvirt.load_last = now; ++out: ++ atomic_inc(&vxi->cvirt.load_updates); ++ spin_unlock(&vxi->cvirt.load_lock); ++} ++ ++ ++int vx_uts_virt_handler(struct ctl_table *ctl, int write, xid_t xid, ++ void **datap, size_t *lenp) ++{ ++ switch (ctl->ctl_name) { ++ case KERN_OSTYPE: ++ *datap = vx_new_uts(sysname); ++ break; ++ case KERN_OSRELEASE: ++ *datap = vx_new_uts(release); ++ break; ++ case KERN_VERSION: ++ *datap = vx_new_uts(version); ++ break; ++ case KERN_NODENAME: ++ *datap = vx_new_uts(nodename); ++ break; ++ case KERN_DOMAINNAME: ++ *datap = vx_new_uts(domainname); ++ break; ++ } ++ ++ return 0; ++} ++ ++ ++ ++/* ++ * Commands to do_syslog: ++ * ++ * 0 -- Close the log. Currently a NOP. ++ * 1 -- Open the log. Currently a NOP. ++ * 2 -- Read from the log. ++ * 3 -- Read all messages remaining in the ring buffer. ++ * 4 -- Read and clear all messages remaining in the ring buffer ++ * 5 -- Clear ring buffer. ++ * 6 -- Disable printk's to console ++ * 7 -- Enable printk's to console ++ * 8 -- Set level of messages printed to console ++ * 9 -- Return number of unread characters in the log buffer ++ * 10 -- Return size of the log buffer ++ */ ++int vx_do_syslog(int type, char __user *buf, int len) ++{ ++ int error = 0; ++ int do_clear = 0; ++ struct vx_info *vxi = current->vx_info; ++ struct _vx_syslog *log; ++ ++ if (!vxi) ++ return -EINVAL; ++ log = &vxi->cvirt.syslog; ++ ++ switch (type) { ++ case 0: /* Close log */ ++ case 1: /* Open log */ ++ break; ++ case 2: /* Read from log */ ++ error = wait_event_interruptible(log->log_wait, ++ (log->log_start - log->log_end)); ++ if (error) ++ break; ++ spin_lock_irq(&log->logbuf_lock); ++ spin_unlock_irq(&log->logbuf_lock); ++ break; ++ case 4: /* Read/clear last kernel messages */ ++ do_clear = 1; ++ /* fall through */ ++ case 3: /* Read last kernel messages */ ++ return 0; ++ ++ case 5: /* Clear ring buffer */ ++ return 0; ++ ++ case 6: /* Disable logging to console */ ++ case 7: /* Enable logging to console */ ++ case 8: /* Set level of messages printed to console */ ++ break; ++ ++ case 9: /* Number of chars in the log buffer */ ++ return 0; ++ case 10: /* Size of the log buffer */ ++ return 0; ++ default: ++ error = -EINVAL; ++ break; ++ } ++ return error; ++} ++ ++ ++/* virtual host info names */ ++ ++static char * vx_vhi_name(struct vx_info *vxi, int id) ++{ ++ switch (id) { ++ case VHIN_CONTEXT: ++ return vxi->vx_name; ++ case VHIN_SYSNAME: ++ return vxi->cvirt.utsname.sysname; ++ case VHIN_NODENAME: ++ return vxi->cvirt.utsname.nodename; ++ case VHIN_RELEASE: ++ return vxi->cvirt.utsname.release; ++ case VHIN_VERSION: ++ return vxi->cvirt.utsname.version; ++ case VHIN_MACHINE: ++ return vxi->cvirt.utsname.machine; ++ case VHIN_DOMAINNAME: ++ return vxi->cvirt.utsname.domainname; ++ default: ++ return NULL; ++ } ++ return NULL; ++} ++ ++int vc_set_vhi_name(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_vhi_name_v0 vc_data; ++ char *name; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ name = vx_vhi_name(vxi, vc_data.field); ++ if (name) ++ memcpy(name, vc_data.name, 65); ++ put_vx_info(vxi); ++ return (name ? 0 : -EFAULT); ++} ++ ++int vc_get_vhi_name(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_vhi_name_v0 vc_data; ++ char *name; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ name = vx_vhi_name(vxi, vc_data.field); ++ if (!name) ++ goto out_put; ++ ++ memcpy(vc_data.name, name, 65); ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++out_put: ++ put_vx_info(vxi); ++ return (name ? 0 : -EFAULT); ++} +Index: linux-2.6.16/kernel/vserver/cvirt_init.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/cvirt_init.h +@@ -0,0 +1,99 @@ ++ ++#include <linux/config.h> ++ ++ ++extern uint64_t vx_idle_jiffies(void); ++ ++static inline void vx_info_init_cvirt(struct _vx_cvirt *cvirt) ++{ ++ uint64_t idle_jiffies = vx_idle_jiffies(); ++ uint64_t nsuptime; ++ ++ do_posix_clock_monotonic_gettime(&cvirt->bias_uptime); ++ nsuptime = (unsigned long long)cvirt->bias_uptime.tv_sec ++ * NSEC_PER_SEC + cvirt->bias_uptime.tv_nsec; ++ cvirt->bias_clock = nsec_to_clock_t(nsuptime); ++ ++ jiffies_to_timespec(idle_jiffies, &cvirt->bias_idle); ++ atomic_set(&cvirt->nr_threads, 0); ++ atomic_set(&cvirt->nr_running, 0); ++ atomic_set(&cvirt->nr_uninterruptible, 0); ++ atomic_set(&cvirt->nr_onhold, 0); ++ ++ down_read(&uts_sem); ++ cvirt->utsname = system_utsname; ++ up_read(&uts_sem); ++ ++ spin_lock_init(&cvirt->load_lock); ++ cvirt->load_last = jiffies; ++ atomic_set(&cvirt->load_updates, 0); ++ cvirt->load[0] = 0; ++ cvirt->load[1] = 0; ++ cvirt->load[2] = 0; ++ atomic_set(&cvirt->total_forks, 0); ++ ++ spin_lock_init(&cvirt->syslog.logbuf_lock); ++ init_waitqueue_head(&cvirt->syslog.log_wait); ++ cvirt->syslog.log_start = 0; ++ cvirt->syslog.log_end = 0; ++ cvirt->syslog.con_start = 0; ++ cvirt->syslog.logged_chars = 0; ++} ++ ++static inline ++void vx_info_init_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu) ++{ ++ // cvirt_pc->cpustat = { 0 }; ++} ++ ++static inline void vx_info_exit_cvirt(struct _vx_cvirt *cvirt) ++{ ++#ifdef CONFIG_VSERVER_DEBUG ++ int value; ++ ++ vxwprintk((value = atomic_read(&cvirt->nr_threads)), ++ "!!! cvirt: %p[nr_threads] = %d on exit.", ++ cvirt, value); ++ vxwprintk((value = atomic_read(&cvirt->nr_running)), ++ "!!! cvirt: %p[nr_running] = %d on exit.", ++ cvirt, value); ++ vxwprintk((value = atomic_read(&cvirt->nr_uninterruptible)), ++ "!!! cvirt: %p[nr_uninterruptible] = %d on exit.", ++ cvirt, value); ++ vxwprintk((value = atomic_read(&cvirt->nr_onhold)), ++ "!!! cvirt: %p[nr_onhold] = %d on exit.", ++ cvirt, value); ++#endif ++ return; ++} ++ ++static inline ++void vx_info_exit_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu) ++{ ++ return; ++} ++ ++ ++static inline void vx_info_init_cacct(struct _vx_cacct *cacct) ++{ ++ int i,j; ++ ++ ++ for (i=0; i<5; i++) { ++ for (j=0; j<3; j++) { ++ atomic_set(&cacct->sock[i][j].count, 0); ++ atomic_set(&cacct->sock[i][j].total, 0); ++ } ++ } ++ for (i=0; i<8; i++) ++ atomic_set(&cacct->slab[i], 0); ++ for (i=0; i<5; i++) ++ for (j=0; j<4; j++) ++ atomic_set(&cacct->page[i][j], 0); ++} ++ ++static inline void vx_info_exit_cacct(struct _vx_cacct *cacct) ++{ ++ return; ++} ++ +Index: linux-2.6.16/kernel/vserver/cvirt_proc.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/cvirt_proc.h +@@ -0,0 +1,129 @@ ++#ifndef _VX_CVIRT_PROC_H ++#define _VX_CVIRT_PROC_H ++ ++#include <linux/sched.h> ++ ++ ++#define LOAD_INT(x) ((x) >> FSHIFT) ++#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) ++ ++static inline ++int vx_info_proc_cvirt(struct _vx_cvirt *cvirt, char *buffer) ++{ ++ int length = 0; ++ int a, b, c; ++ ++ length += sprintf(buffer + length, ++ "BiasUptime:\t%lu.%02lu\n", ++ (unsigned long)cvirt->bias_uptime.tv_sec, ++ (cvirt->bias_uptime.tv_nsec / (NSEC_PER_SEC / 100))); ++ length += sprintf(buffer + length, ++ "SysName:\t%.*s\n" ++ "NodeName:\t%.*s\n" ++ "Release:\t%.*s\n" ++ "Version:\t%.*s\n" ++ "Machine:\t%.*s\n" ++ "DomainName:\t%.*s\n" ++ ,__NEW_UTS_LEN, cvirt->utsname.sysname ++ ,__NEW_UTS_LEN, cvirt->utsname.nodename ++ ,__NEW_UTS_LEN, cvirt->utsname.release ++ ,__NEW_UTS_LEN, cvirt->utsname.version ++ ,__NEW_UTS_LEN, cvirt->utsname.machine ++ ,__NEW_UTS_LEN, cvirt->utsname.domainname ++ ); ++ ++ a = cvirt->load[0] + (FIXED_1/200); ++ b = cvirt->load[1] + (FIXED_1/200); ++ c = cvirt->load[2] + (FIXED_1/200); ++ length += sprintf(buffer + length, ++ "nr_threads:\t%d\n" ++ "nr_running:\t%d\n" ++ "nr_unintr:\t%d\n" ++ "nr_onhold:\t%d\n" ++ "load_updates:\t%d\n" ++ "loadavg:\t%d.%02d %d.%02d %d.%02d\n" ++ "total_forks:\t%d\n" ++ ,atomic_read(&cvirt->nr_threads) ++ ,atomic_read(&cvirt->nr_running) ++ ,atomic_read(&cvirt->nr_uninterruptible) ++ ,atomic_read(&cvirt->nr_onhold) ++ ,atomic_read(&cvirt->load_updates) ++ ,LOAD_INT(a), LOAD_FRAC(a) ++ ,LOAD_INT(b), LOAD_FRAC(b) ++ ,LOAD_INT(c), LOAD_FRAC(c) ++ ,atomic_read(&cvirt->total_forks) ++ ); ++ return length; ++} ++ ++static inline ++int vx_info_proc_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, ++ char *buffer, int cpu) ++{ ++ int length = 0; ++ return length; ++} ++ ++static inline long vx_sock_count(struct _vx_cacct *cacct, int type, int pos) ++{ ++ return atomic_read(&cacct->sock[type][pos].count); ++} ++ ++ ++static inline long vx_sock_total(struct _vx_cacct *cacct, int type, int pos) ++{ ++ return atomic_read(&cacct->sock[type][pos].total); ++} ++ ++ ++#define VX_SOCKA_TOP \ ++ "Type\t recv #/bytes\t\t send #/bytes\t\t fail #/bytes\n" ++ ++static inline int vx_info_proc_cacct(struct _vx_cacct *cacct, char *buffer) ++{ ++ int i,j, length = 0; ++ static char *type[] = { "UNSPEC", "UNIX", "INET", "INET6", "OTHER" }; ++ ++ length += sprintf(buffer + length, VX_SOCKA_TOP); ++ for (i=0; i<5; i++) { ++ length += sprintf(buffer + length, ++ "%s:", type[i]); ++ for (j=0; j<3; j++) { ++ length += sprintf(buffer + length, ++ "\t%10lu/%-10lu" ++ ,vx_sock_count(cacct, i, j) ++ ,vx_sock_total(cacct, i, j) ++ ); ++ } ++ buffer[length++] = '\n'; ++ } ++ ++ length += sprintf(buffer + length, "\n"); ++ length += sprintf(buffer + length, ++ "slab:\t %8u %8u %8u %8u\n" ++ ,atomic_read(&cacct->slab[1]) ++ ,atomic_read(&cacct->slab[4]) ++ ,atomic_read(&cacct->slab[0]) ++ ,atomic_read(&cacct->slab[2]) ++ ); ++ ++ length += sprintf(buffer + length, "\n"); ++ for (i=0; i<5; i++) { ++ length += sprintf(buffer + length, ++ "page[%d]: %8u %8u %8u %8u\t %8u %8u %8u %8u\n" ++ ,i ++ ,atomic_read(&cacct->page[i][0]) ++ ,atomic_read(&cacct->page[i][1]) ++ ,atomic_read(&cacct->page[i][2]) ++ ,atomic_read(&cacct->page[i][3]) ++ ,atomic_read(&cacct->page[i][4]) ++ ,atomic_read(&cacct->page[i][5]) ++ ,atomic_read(&cacct->page[i][6]) ++ ,atomic_read(&cacct->page[i][7]) ++ ); ++ } ++ ++ return length; ++} ++ ++#endif /* _VX_CVIRT_PROC_H */ +Index: linux-2.6.16/kernel/vserver/debug.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/debug.c +@@ -0,0 +1,36 @@ ++/* ++ * kernel/vserver/debug.c ++ * ++ * Copyright (C) 2005 Herbert Pötzl ++ * ++ * V0.01 vx_info dump support ++ * ++ */ ++ ++#include <linux/errno.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++ ++#include <linux/vserver/cvirt_def.h> ++#include <linux/vserver/limit_def.h> ++#include <linux/vserver/sched_def.h> ++ ++ ++void dump_vx_info(struct vx_info *vxi, int level) ++{ ++ printk("vx_info %p[#%d, %d.%d, %4x]\n", vxi, vxi->vx_id, ++ atomic_read(&vxi->vx_usecnt), ++ atomic_read(&vxi->vx_tasks), ++ vxi->vx_state); ++ if (level > 0) { ++ __dump_vx_limit(&vxi->limit); ++ __dump_vx_sched(&vxi->sched); ++ __dump_vx_cvirt(&vxi->cvirt); ++ __dump_vx_cacct(&vxi->cacct); ++ } ++ printk("---\n"); ++} ++ ++ ++EXPORT_SYMBOL_GPL(dump_vx_info); ++ +Index: linux-2.6.16/kernel/vserver/dlimit.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/dlimit.c +@@ -0,0 +1,547 @@ ++/* ++ * linux/kernel/vserver/dlimit.c ++ * ++ * Virtual Server: Context Disk Limits ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 initial version ++ * V0.02 compat32 splitup ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/fs.h> ++#include <linux/namespace.h> ++#include <linux/namei.h> ++#include <linux/statfs.h> ++#include <linux/compat.h> ++#include <linux/vserver/switch.h> ++#include <linux/vs_context.h> ++#include <linux/vs_tag.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/dlimit_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++/* __alloc_dl_info() ++ ++ * allocate an initialized dl_info struct ++ * doesn't make it visible (hash) */ ++ ++static struct dl_info *__alloc_dl_info(struct super_block *sb, tag_t tag) ++{ ++ struct dl_info *new = NULL; ++ ++ vxdprintk(VXD_CBIT(dlim, 5), ++ "alloc_dl_info(%p,%d)*", sb, tag); ++ ++ /* would this benefit from a slab cache? */ ++ new = kmalloc(sizeof(struct dl_info), GFP_KERNEL); ++ if (!new) ++ return 0; ++ ++ memset (new, 0, sizeof(struct dl_info)); ++ new->dl_tag = tag; ++ new->dl_sb = sb; ++ INIT_RCU_HEAD(&new->dl_rcu); ++ INIT_HLIST_NODE(&new->dl_hlist); ++ spin_lock_init(&new->dl_lock); ++ atomic_set(&new->dl_refcnt, 0); ++ atomic_set(&new->dl_usecnt, 0); ++ ++ /* rest of init goes here */ ++ ++ vxdprintk(VXD_CBIT(dlim, 4), ++ "alloc_dl_info(%p,%d) = %p", sb, tag, new); ++ return new; ++} ++ ++/* __dealloc_dl_info() ++ ++ * final disposal of dl_info */ ++ ++static void __dealloc_dl_info(struct dl_info *dli) ++{ ++ vxdprintk(VXD_CBIT(dlim, 4), ++ "dealloc_dl_info(%p)", dli); ++ ++ dli->dl_hlist.next = LIST_POISON1; ++ dli->dl_tag = -1; ++ dli->dl_sb = 0; ++ ++ BUG_ON(atomic_read(&dli->dl_usecnt)); ++ BUG_ON(atomic_read(&dli->dl_refcnt)); ++ ++ kfree(dli); ++} ++ ++ ++/* hash table for dl_info hash */ ++ ++#define DL_HASH_SIZE 13 ++ ++struct hlist_head dl_info_hash[DL_HASH_SIZE]; ++ ++static spinlock_t dl_info_hash_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++static inline unsigned int __hashval(struct super_block *sb, tag_t tag) ++{ ++ return ((tag ^ (unsigned long)sb) % DL_HASH_SIZE); ++} ++ ++ ++ ++/* __hash_dl_info() ++ ++ * add the dli to the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __hash_dl_info(struct dl_info *dli) ++{ ++ struct hlist_head *head; ++ ++ vxdprintk(VXD_CBIT(dlim, 6), ++ "__hash_dl_info: %p[#%d]", dli, dli->dl_tag); ++ get_dl_info(dli); ++ head = &dl_info_hash[__hashval(dli->dl_sb, dli->dl_tag)]; ++ hlist_add_head_rcu(&dli->dl_hlist, head); ++} ++ ++/* __unhash_dl_info() ++ ++ * remove the dli from the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __unhash_dl_info(struct dl_info *dli) ++{ ++ vxdprintk(VXD_CBIT(dlim, 6), ++ "__unhash_dl_info: %p[#%d]", dli, dli->dl_tag); ++ hlist_del_rcu(&dli->dl_hlist); ++ put_dl_info(dli); ++} ++ ++ ++/* __lookup_dl_info() ++ ++ * requires the rcu_read_lock() ++ * doesn't increment the dl_refcnt */ ++ ++static inline struct dl_info *__lookup_dl_info(struct super_block *sb, tag_t tag) ++{ ++ struct hlist_head *head = &dl_info_hash[__hashval(sb, tag)]; ++ struct hlist_node *pos; ++ struct dl_info *dli; ++ ++ hlist_for_each_entry_rcu(dli, pos, head, dl_hlist) { ++// hlist_for_each_rcu(pos, head) { ++// struct dl_info *dli = ++// hlist_entry(pos, struct dl_info, dl_hlist); ++ ++ if (dli->dl_tag == tag && dli->dl_sb == sb) { ++ return dli; ++ } ++ } ++ return NULL; ++} ++ ++ ++struct dl_info *locate_dl_info(struct super_block *sb, tag_t tag) ++{ ++ struct dl_info *dli; ++ ++ rcu_read_lock(); ++ dli = get_dl_info(__lookup_dl_info(sb, tag)); ++ vxdprintk(VXD_CBIT(dlim, 7), ++ "locate_dl_info(%p,#%d) = %p", sb, tag, dli); ++ rcu_read_unlock(); ++ return dli; ++} ++ ++void rcu_free_dl_info(struct rcu_head *head) ++{ ++ struct dl_info *dli = container_of(head, struct dl_info, dl_rcu); ++ int usecnt, refcnt; ++ ++ BUG_ON(!dli || !head); ++ ++ usecnt = atomic_read(&dli->dl_usecnt); ++ BUG_ON(usecnt < 0); ++ ++ refcnt = atomic_read(&dli->dl_refcnt); ++ BUG_ON(refcnt < 0); ++ ++ vxdprintk(VXD_CBIT(dlim, 3), ++ "rcu_free_dl_info(%p)", dli); ++ if (!usecnt) ++ __dealloc_dl_info(dli); ++ else ++ printk("!!! rcu didn't free\n"); ++} ++ ++ ++ ++ ++int do_addrem_dlimit(uint32_t id, const char __user *name, ++ uint32_t flags, int add) ++{ ++ struct nameidata nd; ++ int ret; ++ ++ ret = user_path_walk_link(name, &nd); ++ if (!ret) { ++ struct super_block *sb; ++ struct dl_info *dli; ++ ++ ret = -EINVAL; ++ if (!nd.dentry->d_inode) ++ goto out_release; ++ if (!(sb = nd.dentry->d_inode->i_sb)) ++ goto out_release; ++ ++ if (add) { ++ dli = __alloc_dl_info(sb, id); ++ spin_lock(&dl_info_hash_lock); ++ ++ ret = -EEXIST; ++ if (__lookup_dl_info(sb, id)) ++ goto out_unlock; ++ __hash_dl_info(dli); ++ dli = NULL; ++ } else { ++ spin_lock(&dl_info_hash_lock); ++ dli = __lookup_dl_info(sb, id); ++ ++ ret = -ESRCH; ++ if (!dli) ++ goto out_unlock; ++ __unhash_dl_info(dli); ++ } ++ ret = 0; ++ out_unlock: ++ spin_unlock(&dl_info_hash_lock); ++ if (add && dli) ++ __dealloc_dl_info(dli); ++ out_release: ++ path_release(&nd); ++ } ++ return ret; ++} ++ ++int vc_add_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 1); ++} ++ ++int vc_rem_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 0); ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_add_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, ++ compat_ptr(vc_data.name_ptr), vc_data.flags, 1); ++} ++ ++int vc_rem_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, ++ compat_ptr(vc_data.name_ptr), vc_data.flags, 0); ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++static inline ++int do_set_dlimit(uint32_t id, const char __user *name, ++ uint32_t space_used, uint32_t space_total, ++ uint32_t inodes_used, uint32_t inodes_total, ++ uint32_t reserved, uint32_t flags) ++{ ++ struct nameidata nd; ++ int ret; ++ ++ ret = user_path_walk_link(name, &nd); ++ if (!ret) { ++ struct super_block *sb; ++ struct dl_info *dli; ++ ++ ret = -EINVAL; ++ if (!nd.dentry->d_inode) ++ goto out_release; ++ if (!(sb = nd.dentry->d_inode->i_sb)) ++ goto out_release; ++ if ((reserved != CDLIM_KEEP && ++ reserved > 100) || ++ (inodes_used != CDLIM_KEEP && ++ inodes_used > inodes_total) || ++ (space_used != CDLIM_KEEP && ++ space_used > space_total)) ++ goto out_release; ++ ++ ret = -ESRCH; ++ dli = locate_dl_info(sb, id); ++ if (!dli) ++ goto out_release; ++ ++ spin_lock(&dli->dl_lock); ++ ++ if (inodes_used != CDLIM_KEEP) ++ dli->dl_inodes_used = inodes_used; ++ if (inodes_total != CDLIM_KEEP) ++ dli->dl_inodes_total = inodes_total; ++ if (space_used != CDLIM_KEEP) { ++ dli->dl_space_used = space_used; ++ dli->dl_space_used <<= 10; ++ } ++ if (space_total == CDLIM_INFINITY) ++ dli->dl_space_total = DLIM_INFINITY; ++ else if (space_total != CDLIM_KEEP) { ++ dli->dl_space_total = space_total; ++ dli->dl_space_total <<= 10; ++ } ++ if (reserved != CDLIM_KEEP) ++ dli->dl_nrlmult = (1 << 10) * (100 - reserved) / 100; ++ ++ spin_unlock(&dli->dl_lock); ++ ++ put_dl_info(dli); ++ ret = 0; ++ ++ out_release: ++ path_release(&nd); ++ } ++ return ret; ++} ++ ++int vc_set_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_set_dlimit(id, vc_data.name, ++ vc_data.space_used, vc_data.space_total, ++ vc_data.inodes_used, vc_data.inodes_total, ++ vc_data.reserved, vc_data.flags); ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_set_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0_x32 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_set_dlimit(id, compat_ptr(vc_data.name_ptr), ++ vc_data.space_used, vc_data.space_total, ++ vc_data.inodes_used, vc_data.inodes_total, ++ vc_data.reserved, vc_data.flags); ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++static inline ++int do_get_dlimit(uint32_t id, const char __user *name, ++ uint32_t *space_used, uint32_t *space_total, ++ uint32_t *inodes_used, uint32_t *inodes_total, ++ uint32_t *reserved, uint32_t *flags) ++{ ++ struct nameidata nd; ++ int ret; ++ ++ ret = user_path_walk_link(name, &nd); ++ if (!ret) { ++ struct super_block *sb; ++ struct dl_info *dli; ++ ++ ret = -EINVAL; ++ if (!nd.dentry->d_inode) ++ goto out_release; ++ if (!(sb = nd.dentry->d_inode->i_sb)) ++ goto out_release; ++ ++ ret = -ESRCH; ++ dli = locate_dl_info(sb, id); ++ if (!dli) ++ goto out_release; ++ ++ spin_lock(&dli->dl_lock); ++ *inodes_used = dli->dl_inodes_used; ++ *inodes_total = dli->dl_inodes_total; ++ *space_used = dli->dl_space_used >> 10; ++ if (dli->dl_space_total == DLIM_INFINITY) ++ *space_total = CDLIM_INFINITY; ++ else ++ *space_total = dli->dl_space_total >> 10; ++ ++ *reserved = 100 - ((dli->dl_nrlmult * 100 + 512) >> 10); ++ spin_unlock(&dli->dl_lock); ++ ++ put_dl_info(dli); ++ ret = -EFAULT; ++ ++ ret = 0; ++ out_release: ++ path_release(&nd); ++ } ++ return ret; ++} ++ ++ ++int vc_get_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0 vc_data; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = do_get_dlimit(id, vc_data.name, ++ &vc_data.space_used, &vc_data.space_total, ++ &vc_data.inodes_used, &vc_data.inodes_total, ++ &vc_data.reserved, &vc_data.flags); ++ if (ret) ++ return ret; ++ ++ if (copy_to_user(data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_get_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0_x32 vc_data; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = do_get_dlimit(id, compat_ptr(vc_data.name_ptr), ++ &vc_data.space_used, &vc_data.space_total, ++ &vc_data.inodes_used, &vc_data.inodes_total, ++ &vc_data.reserved, &vc_data.flags); ++ if (ret) ++ return ret; ++ ++ if (copy_to_user(data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++void vx_vsi_statfs(struct super_block *sb, struct kstatfs *buf) ++{ ++ struct dl_info *dli; ++ __u64 blimit, bfree, bavail; ++ __u32 ifree; ++ ++ dli = locate_dl_info(sb, dx_current_tag()); ++ if (!dli) ++ return; ++ ++ spin_lock(&dli->dl_lock); ++ if (dli->dl_inodes_total == (unsigned long)DLIM_INFINITY) ++ goto no_ilim; ++ ++ /* reduce max inodes available to limit */ ++ if (buf->f_files > dli->dl_inodes_total) ++ buf->f_files = dli->dl_inodes_total; ++ ++ ifree = dli->dl_inodes_total - dli->dl_inodes_used; ++ /* reduce free inodes to min */ ++ if (ifree < buf->f_ffree) ++ buf->f_ffree = ifree; ++ ++no_ilim: ++ if (dli->dl_space_total == DLIM_INFINITY) ++ goto no_blim; ++ ++ blimit = dli->dl_space_total >> sb->s_blocksize_bits; ++ ++ if (dli->dl_space_total < dli->dl_space_used) ++ bfree = 0; ++ else ++ bfree = (dli->dl_space_total - dli->dl_space_used) ++ >> sb->s_blocksize_bits; ++ ++ bavail = ((dli->dl_space_total >> 10) * dli->dl_nrlmult); ++ if (bavail < dli->dl_space_used) ++ bavail = 0; ++ else ++ bavail = (bavail - dli->dl_space_used) ++ >> sb->s_blocksize_bits; ++ ++ /* reduce max space available to limit */ ++ if (buf->f_blocks > blimit) ++ buf->f_blocks = blimit; ++ ++ /* reduce free space to min */ ++ if (bfree < buf->f_bfree) ++ buf->f_bfree = bfree; ++ ++ /* reduce avail space to min */ ++ if (bavail < buf->f_bavail) ++ buf->f_bavail = bavail; ++ ++no_blim: ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++ ++ return; ++} ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(locate_dl_info); ++EXPORT_SYMBOL_GPL(rcu_free_dl_info); ++ +Index: linux-2.6.16/kernel/vserver/helper.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/helper.c +@@ -0,0 +1,200 @@ ++/* ++ * linux/kernel/vserver/helper.c ++ * ++ * Virtual Context Support ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic helper ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/errno.h> ++#include <linux/kmod.h> ++#include <linux/sched.h> ++#include <linux/reboot.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vserver/signal.h> ++ ++#include <asm/uaccess.h> ++#include <asm/unistd.h> ++ ++ ++char vshelper_path[255] = "/sbin/vshelper"; ++ ++ ++int do_vshelper(char *name, char *argv[], char *envp[], int sync) ++{ ++ int ret; ++ ++ if ((ret = call_usermodehelper(name, argv, envp, sync))) { ++ printk( KERN_WARNING ++ "%s: (%s %s) returned %s with %d\n", ++ name, argv[1], argv[2], ++ sync?"sync":"async", ret); ++ } ++ vxdprintk(VXD_CBIT(switch, 4), ++ "%s: (%s %s) returned %s with %d", ++ name, argv[1], argv[2], sync?"sync":"async", ret); ++ return ret; ++} ++ ++/* ++ * vshelper path is set via /proc/sys ++ * invoked by vserver sys_reboot(), with ++ * the following arguments ++ * ++ * argv [0] = vshelper_path; ++ * argv [1] = action: "restart", "halt", "poweroff", ... ++ * argv [2] = context identifier ++ * ++ * envp [*] = type-specific parameters ++ */ ++ ++long vs_reboot_helper(struct vx_info *vxi, int cmd, void *arg) ++{ ++ char id_buf[8], cmd_buf[16]; ++ char uid_buf[16], pid_buf[16]; ++ int ret; ++ ++ char *argv[] = {vshelper_path, NULL, id_buf, 0}; ++ char *envp[] = {"HOME=/", "TERM=linux", ++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", ++ uid_buf, pid_buf, cmd_buf, 0}; ++ ++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id); ++ ++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd); ++ snprintf(uid_buf, sizeof(uid_buf)-1, "VS_UID=%d", current->uid); ++ snprintf(pid_buf, sizeof(pid_buf)-1, "VS_PID=%d", current->pid); ++ ++ switch (cmd) { ++ case LINUX_REBOOT_CMD_RESTART: ++ argv[1] = "restart"; ++ break; ++ ++ case LINUX_REBOOT_CMD_HALT: ++ argv[1] = "halt"; ++ break; ++ ++ case LINUX_REBOOT_CMD_POWER_OFF: ++ argv[1] = "poweroff"; ++ break; ++ ++ case LINUX_REBOOT_CMD_SW_SUSPEND: ++ argv[1] = "swsusp"; ++ break; ++ ++ default: ++ return 0; ++ } ++ ++#ifndef CONFIG_VSERVER_LEGACY ++ ret = do_vshelper(vshelper_path, argv, envp, 1); ++#else ++ ret = do_vshelper(vshelper_path, argv, envp, 0); ++#endif ++ return (ret) ? -EPERM : 0; ++} ++ ++ ++long vs_reboot(unsigned int cmd, void * arg) ++{ ++ struct vx_info *vxi = current->vx_info; ++ long ret = 0; ++ ++ vxdprintk(VXD_CBIT(misc, 5), ++ "vs_reboot(%p[#%d],%d)", ++ vxi, vxi?vxi->vx_id:0, cmd); ++ if (vx_info_flags(vxi, VXF_REBOOT_KILL, 0)) { ++ switch (cmd) { ++ case LINUX_REBOOT_CMD_RESTART: ++ case LINUX_REBOOT_CMD_HALT: ++ case LINUX_REBOOT_CMD_POWER_OFF: ++ vx_info_kill(vxi, 0, SIGKILL); ++ vx_info_kill(vxi, 1, SIGKILL); ++ default: ++ break; ++ } ++ } else { ++ ret = vs_reboot_helper(vxi, cmd, arg); ++ } ++ return ret; ++} ++ ++ ++/* ++ * argv [0] = vshelper_path; ++ * argv [1] = action: "startup", "shutdown" ++ * argv [2] = context identifier ++ * ++ * envp [*] = type-specific parameters ++ */ ++ ++long vs_state_change(struct vx_info *vxi, unsigned int cmd) ++{ ++ char id_buf[8], cmd_buf[16]; ++ char *argv[] = {vshelper_path, NULL, id_buf, 0}; ++ char *envp[] = {"HOME=/", "TERM=linux", ++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0}; ++ ++ if (!vx_info_flags(vxi, VXF_SC_HELPER, 0)) ++ return 0; ++ ++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id); ++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd); ++ ++ switch (cmd) { ++ case VSC_STARTUP: ++ argv[1] = "startup"; ++ break; ++ case VSC_SHUTDOWN: ++ argv[1] = "shutdown"; ++ break; ++ default: ++ return 0; ++ } ++ ++ do_vshelper(vshelper_path, argv, envp, 1); ++ return 0; ++} ++ ++ ++/* ++ * argv [0] = vshelper_path; ++ * argv [1] = action: "netup", "netdown" ++ * argv [2] = context identifier ++ * ++ * envp [*] = type-specific parameters ++ */ ++ ++long vs_net_change(struct nx_info *nxi, unsigned int cmd) ++{ ++ char id_buf[8], cmd_buf[16]; ++ char *argv[] = {vshelper_path, NULL, id_buf, 0}; ++ char *envp[] = {"HOME=/", "TERM=linux", ++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0}; ++ ++ if (!nx_info_flags(nxi, NXF_SC_HELPER, 0)) ++ return 0; ++ ++ snprintf(id_buf, sizeof(id_buf)-1, "%d", nxi->nx_id); ++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd); ++ ++ switch (cmd) { ++ case VSC_NETUP: ++ argv[1] = "netup"; ++ break; ++ case VSC_NETDOWN: ++ argv[1] = "netdown"; ++ break; ++ default: ++ return 0; ++ } ++ ++ do_vshelper(vshelper_path, argv, envp, 1); ++ return 0; ++} ++ +Index: linux-2.6.16/kernel/vserver/history.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/history.c +@@ -0,0 +1,184 @@ ++/* ++ * kernel/vserver/history.c ++ * ++ * Virtual Context History Backtrace ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * V0.02 hash/unhash and trace ++ * V0.03 preemption fixes ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/errno.h> ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/ctype.h> ++ ++#include <asm/uaccess.h> ++#include <asm/atomic.h> ++#include <asm/unistd.h> ++ ++#include <linux/vserver/debug.h> ++ ++ ++#ifdef CONFIG_VSERVER_HISTORY ++#define VXH_SIZE CONFIG_VSERVER_HISTORY_SIZE ++#else ++#define VXH_SIZE 64 ++#endif ++ ++struct _vx_history { ++ unsigned int counter; ++ ++ struct _vx_hist_entry entry[VXH_SIZE+1]; ++}; ++ ++ ++DEFINE_PER_CPU(struct _vx_history, vx_history_buffer); ++ ++unsigned volatile int vxh_active = 1; ++ ++static atomic_t sequence = ATOMIC_INIT(0); ++ ++ ++/* vxh_advance() ++ ++ * requires disabled preemption */ ++ ++struct _vx_hist_entry *vxh_advance(void *loc) ++{ ++ unsigned int cpu = smp_processor_id(); ++ struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu); ++ struct _vx_hist_entry *entry; ++ unsigned int index; ++ ++ index = vxh_active ? (hist->counter++ % VXH_SIZE) : VXH_SIZE; ++ entry = &hist->entry[index]; ++ ++ entry->seq = atomic_inc_return(&sequence); ++ entry->loc = loc; ++ return entry; ++} ++ ++ ++#define VXH_LOC_FMTS "(#%04x,*%d):%p" ++ ++#define VXH_LOC_ARGS(e) (e)->seq, cpu, (e)->loc ++ ++ ++#define VXH_VXI_FMTS "%p[#%d,%d.%d]" ++ ++#define VXH_VXI_ARGS(e) (e)->vxi.ptr, \ ++ (e)->vxi.ptr?(e)->vxi.xid:0, \ ++ (e)->vxi.ptr?(e)->vxi.usecnt:0, \ ++ (e)->vxi.ptr?(e)->vxi.tasks:0 ++ ++void vxh_dump_entry(struct _vx_hist_entry *e, unsigned cpu) ++{ ++ switch (e->type) { ++ case VXH_THROW_OOPS: ++ printk( VXH_LOC_FMTS " oops \n", VXH_LOC_ARGS(e)); ++ break; ++ ++ case VXH_GET_VX_INFO: ++ case VXH_PUT_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_GET_VX_INFO)?"get":"put", ++ VXH_VXI_ARGS(e)); ++ break; ++ ++ case VXH_INIT_VX_INFO: ++ case VXH_SET_VX_INFO: ++ case VXH_CLR_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_INIT_VX_INFO)?"init": ++ ((e->type==VXH_SET_VX_INFO)?"set":"clr"), ++ VXH_VXI_ARGS(e), e->sc.data); ++ break; ++ ++ case VXH_CLAIM_VX_INFO: ++ case VXH_RELEASE_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_CLAIM_VX_INFO)?"claim":"release", ++ VXH_VXI_ARGS(e), e->sc.data); ++ break; ++ ++ case VXH_ALLOC_VX_INFO: ++ case VXH_DEALLOC_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_ALLOC_VX_INFO)?"alloc":"dealloc", ++ VXH_VXI_ARGS(e)); ++ break; ++ ++ case VXH_HASH_VX_INFO: ++ case VXH_UNHASH_VX_INFO: ++ printk( VXH_LOC_FMTS " __%s_vx_info " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_HASH_VX_INFO)?"hash":"unhash", ++ VXH_VXI_ARGS(e)); ++ break; ++ ++ case VXH_LOC_VX_INFO: ++ case VXH_LOOKUP_VX_INFO: ++ case VXH_CREATE_VX_INFO: ++ printk( VXH_LOC_FMTS " __%s_vx_info [#%d] -> " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_CREATE_VX_INFO)?"create": ++ ((e->type==VXH_LOC_VX_INFO)?"loc":"lookup"), ++ e->ll.arg, VXH_VXI_ARGS(e)); ++ break; ++ } ++} ++ ++static void __vxh_dump_history(void) ++{ ++ unsigned int i,j; ++ ++ printk("History:\tSEQ: %8x\tNR_CPUS: %d\n", ++ atomic_read(&sequence), NR_CPUS); ++ ++ for (i=0; i < VXH_SIZE; i++) { ++ for (j=0; j < NR_CPUS; j++) { ++ struct _vx_history *hist = ++ &per_cpu(vx_history_buffer, j); ++ unsigned int index = (hist->counter-i) % VXH_SIZE; ++ struct _vx_hist_entry *entry = &hist->entry[index]; ++ ++ vxh_dump_entry(entry, j); ++ } ++ } ++} ++ ++void vxh_dump_history(void) ++{ ++ vxh_active = 0; ++#ifdef CONFIG_SMP ++ local_irq_enable(); ++ smp_send_stop(); ++ local_irq_disable(); ++#endif ++ __vxh_dump_history(); ++} ++ ++ ++/* vserver syscall commands below here */ ++ ++ ++int vc_dump_history(uint32_t id) ++{ ++ vxh_active = 0; ++ __vxh_dump_history(); ++ vxh_active = 1; ++ ++ return 0; ++} ++ ++EXPORT_SYMBOL_GPL(vxh_advance); ++ +Index: linux-2.6.16/kernel/vserver/init.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/init.c +@@ -0,0 +1,47 @@ ++/* ++ * linux/kernel/init.c ++ * ++ * Virtual Server Init ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/errno.h> ++#include <linux/init.h> ++#include <linux/module.h> ++ ++int vserver_register_sysctl(void); ++void vserver_unregister_sysctl(void); ++ ++ ++static int __init init_vserver(void) ++{ ++ int ret = 0; ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ vserver_register_sysctl(); ++#endif ++ return ret; ++} ++ ++ ++static void __exit exit_vserver(void) ++{ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ vserver_unregister_sysctl(); ++#endif ++ return; ++} ++ ++long vx_slab[GFP_ZONETYPES]; ++long vx_area; ++ ++ ++module_init(init_vserver); ++module_exit(exit_vserver); ++ +Index: linux-2.6.16/kernel/vserver/inode.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/inode.c +@@ -0,0 +1,372 @@ ++/* ++ * linux/kernel/vserver/inode.c ++ * ++ * Virtual Server: File System Support ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 separated from vcontext V0.05 ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/proc_fs.h> ++#include <linux/devpts_fs.h> ++#include <linux/namei.h> ++#include <linux/mount.h> ++#include <linux/parser.h> ++#include <linux/compat.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/inode_cmd.h> ++#include <linux/vserver/tag.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++static int __vc_get_iattr(struct inode *in, uint32_t *tag, uint32_t *flags, uint32_t *mask) ++{ ++ struct proc_dir_entry *entry; ++ ++ if (!in || !in->i_sb) ++ return -ESRCH; ++ ++ *flags = IATTR_TAG ++ | (IS_BARRIER(in) ? IATTR_BARRIER : 0) ++ | (IS_IUNLINK(in) ? IATTR_IUNLINK : 0) ++ | (IS_IMMUTABLE(in) ? IATTR_IMMUTABLE : 0); ++ *mask = IATTR_IUNLINK | IATTR_IMMUTABLE; ++ ++ if (S_ISDIR(in->i_mode)) ++ *mask |= IATTR_BARRIER; ++ ++ if (IS_TAGGED(in)) { ++ *tag = in->i_tag; ++ *mask |= IATTR_TAG; ++ } ++ ++ switch (in->i_sb->s_magic) { ++ case PROC_SUPER_MAGIC: ++ entry = PROC_I(in)->pde; ++ ++ /* check for specific inodes? */ ++ if (entry) ++ *mask |= IATTR_FLAGS; ++ if (entry) ++ *flags |= (entry->vx_flags & IATTR_FLAGS); ++ else ++ *flags |= (PROC_I(in)->vx_flags & IATTR_FLAGS); ++ break; ++ ++ case DEVPTS_SUPER_MAGIC: ++ *tag = in->i_tag; ++ *mask |= IATTR_TAG; ++ break; ++ ++ default: ++ break; ++ } ++ return 0; ++} ++ ++int vc_get_iattr(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1 vc_data = { .xid = -1 }; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(vc_data.name, &nd); ++ if (!ret) { ++ ret = __vc_get_iattr(nd.dentry->d_inode, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ if (ret) ++ return ret; ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_get_iattr_x32(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1_x32 vc_data = { .xid = -1 }; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd); ++ if (!ret) { ++ ret = __vc_get_iattr(nd.dentry->d_inode, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ if (ret) ++ return ret; ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++static int __vc_set_iattr(struct dentry *de, uint32_t *tag, uint32_t *flags, uint32_t *mask) ++{ ++ struct inode *in = de->d_inode; ++ int error = 0, is_proc = 0, has_tag = 0; ++ struct iattr attr = { 0 }; ++ ++ if (!in || !in->i_sb) ++ return -ESRCH; ++ ++ is_proc = (in->i_sb->s_magic == PROC_SUPER_MAGIC); ++ if ((*mask & IATTR_FLAGS) && !is_proc) ++ return -EINVAL; ++ ++ has_tag = IS_TAGGED(in) || ++ (in->i_sb->s_magic == DEVPTS_SUPER_MAGIC); ++ if ((*mask & IATTR_TAG) && !has_tag) ++ return -EINVAL; ++ ++ mutex_lock(&in->i_mutex); ++ if (*mask & IATTR_TAG) { ++ attr.ia_tag = *tag; ++ attr.ia_valid |= ATTR_TAG; ++ } ++ ++ if (*mask & IATTR_FLAGS) { ++ struct proc_dir_entry *entry = PROC_I(in)->pde; ++ unsigned int iflags = PROC_I(in)->vx_flags; ++ ++ iflags = (iflags & ~(*mask & IATTR_FLAGS)) ++ | (*flags & IATTR_FLAGS); ++ PROC_I(in)->vx_flags = iflags; ++ if (entry) ++ entry->vx_flags = iflags; ++ } ++ ++ if (*mask & (IATTR_BARRIER | IATTR_IUNLINK | IATTR_IMMUTABLE)) { ++ if (*mask & IATTR_IMMUTABLE) { ++ if (*flags & IATTR_IMMUTABLE) ++ in->i_flags |= S_IMMUTABLE; ++ else ++ in->i_flags &= ~S_IMMUTABLE; ++ } ++ if (*mask & IATTR_IUNLINK) { ++ if (*flags & IATTR_IUNLINK) ++ in->i_flags |= S_IUNLINK; ++ else ++ in->i_flags &= ~S_IUNLINK; ++ } ++ if (S_ISDIR(in->i_mode) && (*mask & IATTR_BARRIER)) { ++ if (*flags & IATTR_BARRIER) ++ in->i_flags |= S_BARRIER; ++ else ++ in->i_flags &= ~S_BARRIER; ++ } ++ if (in->i_op && in->i_op->sync_flags) { ++ error = in->i_op->sync_flags(in); ++ if (error) ++ goto out; ++ } ++ } ++ ++ if (attr.ia_valid) { ++ if (in->i_op && in->i_op->setattr) ++ error = in->i_op->setattr(de, &attr); ++ else { ++ error = inode_change_ok(in, &attr); ++ if (!error) ++ error = inode_setattr(in, &attr); ++ } ++ } ++ ++out: ++ mutex_unlock(&in->i_mutex); ++ return error; ++} ++ ++int vc_set_iattr(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1 vc_data; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_LINUX_IMMUTABLE)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(vc_data.name, &nd); ++ if (!ret) { ++ ret = __vc_set_iattr(nd.dentry, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_set_iattr_x32(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1_x32 vc_data; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_LINUX_IMMUTABLE)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd); ++ if (!ret) { ++ ret = __vc_set_iattr(nd.dentry, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++#define PROC_DYNAMIC_FIRST 0xF0000000UL ++ ++int vx_proc_ioctl(struct inode * inode, struct file * filp, ++ unsigned int cmd, unsigned long arg) ++{ ++ struct proc_dir_entry *entry; ++ int error = 0; ++ int flags; ++ ++ if (inode->i_ino < PROC_DYNAMIC_FIRST) ++ return -ENOTTY; ++ ++ entry = PROC_I(inode)->pde; ++ if (!entry) ++ return -ENOTTY; ++ ++ switch(cmd) { ++ case FIOC_GETXFLG: { ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ flags = entry->vx_flags; ++ if (capable(CAP_CONTEXT)) ++ error = put_user(flags, (int *) arg); ++ break; ++ } ++ case FIOC_SETXFLG: { ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ if (!capable(CAP_CONTEXT)) ++ break; ++ error = -EROFS; ++ if (IS_RDONLY(inode)) ++ break; ++ error = -EFAULT; ++ if (get_user(flags, (int *) arg)) ++ break; ++ error = 0; ++ entry->vx_flags = flags; ++ break; ++ } ++ default: ++ return -ENOTTY; ++ } ++ return error; ++} ++#endif /* CONFIG_VSERVER_LEGACY */ ++ ++#ifdef CONFIG_PROPAGATE ++ ++int dx_parse_tag(char *string, tag_t *tag, int remove) ++{ ++ static match_table_t tokens = { ++ {1, "tagid=%u"}, ++ {0, NULL} ++ }; ++ substring_t args[MAX_OPT_ARGS]; ++ int token, option = 0; ++ ++ if (!string) ++ return 0; ++ ++ token = match_token(string, tokens, args); ++ if (token && tag && !match_int(args, &option)) ++ *tag = option; ++ ++ vxdprintk(VXD_CBIT(tag, 7), ++ "dx_parse_tag(»%s«): %d:#%d", ++ string, token, option); ++ ++ if ((token == 1) && remove) { ++ char *p = strstr(string, "tagid="); ++ char *q = p; ++ ++ if (p) { ++ while (*q != '\0' && *q != ',') ++ q++; ++ while (*q) ++ *p++ = *q++; ++ while (*p) ++ *p++ = '\0'; ++ } ++ } ++ return token; ++} ++ ++void __dx_propagate_tag(struct nameidata *nd, struct inode *inode) ++{ ++ tag_t new_tag = 0; ++ struct vfsmount *mnt; ++ int propagate; ++ ++ if (!nd) ++ return; ++ mnt = nd->mnt; ++ if (!mnt) ++ return; ++ ++ propagate = (mnt->mnt_flags & MNT_TAGID); ++ if (propagate) ++ new_tag = mnt->mnt_tag; ++ ++ vxdprintk(VXD_CBIT(tag, 7), ++ "dx_propagate_tag(%p[#%lu.%d]): %d,%d", ++ inode, inode->i_ino, inode->i_tag, ++ new_tag, (propagate)?1:0); ++ ++ if (propagate) ++ inode->i_tag = new_tag; ++} ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(__dx_propagate_tag); ++ ++#endif /* CONFIG_PROPAGATE */ ++ +Index: linux-2.6.16/kernel/vserver/legacy.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/legacy.c +@@ -0,0 +1,111 @@ ++/* ++ * linux/kernel/vserver/legacy.c ++ * ++ * Virtual Server: Legacy Funtions ++ * ++ * Copyright (C) 2001-2003 Jacques Gelinas ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext.c V0.05 ++ * ++ */ ++ ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vserver/legacy.h> ++#include <linux/vserver/namespace.h> ++#include <linux/namespace.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++extern int vx_set_init(struct vx_info *, struct task_struct *); ++ ++static int vx_set_initpid(struct vx_info *vxi, int pid) ++{ ++ struct task_struct *init; ++ ++ init = find_task_by_real_pid(pid); ++ if (!init) ++ return -ESRCH; ++ ++ return vx_set_init(vxi, init); ++} ++ ++int vc_new_s_context(uint32_t ctx, void __user *data) ++{ ++ int ret = -ENOMEM; ++ struct vcmd_new_s_context_v1 vc_data; ++ struct vx_info *new_vxi; ++ ++ if (copy_from_user(&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ /* legacy hack, will be removed soon */ ++ if (ctx == -2) { ++ /* assign flags and initpid */ ++ if (!current->vx_info) ++ return -EINVAL; ++ ret = 0; ++ if (vc_data.flags & VX_INFO_INIT) ++ ret = vx_set_initpid(current->vx_info, current->tgid); ++ if (ret == 0) { ++ /* We keep the same vx_id, but lower the capabilities */ ++ current->vx_info->vx_bcaps &= (~vc_data.remove_cap); ++ ret = vx_current_xid(); ++ current->vx_info->vx_flags |= vc_data.flags; ++ } ++ return ret; ++ } ++ ++ if (!vx_check(0, VX_ADMIN) || !capable(CAP_SYS_ADMIN) ++ /* might make sense in the future, or not ... */ ++ || vx_flags(VX_INFO_LOCK, 0)) ++ return -EPERM; ++ ++ /* ugly hack for Spectator */ ++ if (ctx == 1) { ++ current->xid = 1; ++ return 0; ++ } ++ ++ if (((ctx > MAX_S_CONTEXT) && (ctx != VX_DYNAMIC_ID)) || ++ (ctx == 0)) ++ return -EINVAL; ++ ++ if ((ctx == VX_DYNAMIC_ID) || (ctx < MIN_D_CONTEXT)) ++ new_vxi = lookup_or_create_vx_info(ctx); ++ else ++ new_vxi = lookup_vx_info(ctx); ++ ++ if (!new_vxi) ++ return -EINVAL; ++ ++ ret = -EPERM; ++ if (!vx_info_flags(new_vxi, VXF_STATE_SETUP, 0) && ++ vx_info_flags(new_vxi, VX_INFO_PRIVATE, 0)) ++ goto out_put; ++ ++ new_vxi->vx_flags &= ~(VXF_STATE_SETUP|VXF_STATE_INIT); ++ ++ ret = vx_migrate_task(current, new_vxi); ++ if (ret == 0) { ++ current->vx_info->vx_bcaps &= (~vc_data.remove_cap); ++ new_vxi->vx_flags |= vc_data.flags; ++ if (vc_data.flags & VX_INFO_INIT) ++ vx_set_initpid(new_vxi, current->tgid); ++ if (vc_data.flags & VX_INFO_NAMESPACE) ++ vx_set_namespace(new_vxi, ++ current->namespace, current->fs); ++ if (vc_data.flags & VX_INFO_NPROC) ++ __rlim_set(&new_vxi->limit, RLIMIT_NPROC, ++ current->signal->rlim[RLIMIT_NPROC].rlim_max); ++ ret = new_vxi->vx_id; ++ } ++out_put: ++ put_vx_info(new_vxi); ++ return ret; ++} ++ +Index: linux-2.6.16/kernel/vserver/legacynet.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/legacynet.c +@@ -0,0 +1,85 @@ ++ ++/* ++ * linux/kernel/vserver/legacynet.c ++ * ++ * Virtual Server: Legacy Network Funtions ++ * ++ * Copyright (C) 2001-2003 Jacques Gelinas ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from legacy.c ++ * ++ */ ++ ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vserver/legacy.h> ++// #include <linux/vserver/namespace.h> ++#include <linux/namespace.h> ++#include <linux/err.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++extern struct nx_info *create_nx_info(void); ++ ++/* set ipv4 root (syscall) */ ++ ++int vc_set_ipv4root(uint32_t nbip, void __user *data) ++{ ++ int i, err = -EPERM; ++ struct vcmd_set_ipv4root_v3 vc_data; ++ struct nx_info *new_nxi, *nxi = current->nx_info; ++ ++ if (nbip < 0 || nbip > NB_IPV4ROOT) ++ return -EINVAL; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ if (!nxi || nxi->ipv4[0] == 0 || capable(CAP_NET_ADMIN)) ++ /* We are allowed to change everything */ ++ err = 0; ++ else if (nxi) { ++ int found = 0; ++ ++ /* We are allowed to select a subset of the currently ++ installed IP numbers. No new one are allowed ++ We can't change the broadcast address though */ ++ for (i=0; i<nbip; i++) { ++ int j; ++ __u32 nxip = vc_data.nx_mask_pair[i].ip; ++ for (j=0; j<nxi->nbipv4; j++) { ++ if (nxip == nxi->ipv4[j]) { ++ found++; ++ break; ++ } ++ } ++ } ++ if ((found == nbip) && ++ (vc_data.broadcast == nxi->v4_bcast)) ++ err = 0; ++ } ++ if (err) ++ return err; ++ ++ new_nxi = create_nx_info(); ++ if (IS_ERR(new_nxi)) ++ return -EINVAL; ++ ++ new_nxi->nbipv4 = nbip; ++ for (i=0; i<nbip; i++) { ++ new_nxi->ipv4[i] = vc_data.nx_mask_pair[i].ip; ++ new_nxi->mask[i] = vc_data.nx_mask_pair[i].mask; ++ } ++ new_nxi->v4_bcast = vc_data.broadcast; ++ if (nxi) ++ printk("!!! switching nx_info %p->%p\n", nxi, new_nxi); ++ ++ nx_migrate_task(current, new_nxi); ++ put_nx_info(new_nxi); ++ return 0; ++} ++ ++ +Index: linux-2.6.16/kernel/vserver/limit.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/limit.c +@@ -0,0 +1,213 @@ ++/* ++ * linux/kernel/vserver/limit.c ++ * ++ * Virtual Server: Context Limits ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext V0.05 ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> ++#include <linux/vserver/limit.h> ++#include <linux/vserver/switch.h> ++#include <linux/vserver/limit_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++const char *vlimit_name[NUM_LIMITS] = { ++ [RLIMIT_CPU] = "CPU", ++ [RLIMIT_RSS] = "RSS", ++ [RLIMIT_NPROC] = "NPROC", ++ [RLIMIT_NOFILE] = "NOFILE", ++ [RLIMIT_MEMLOCK] = "VML", ++ [RLIMIT_AS] = "VM", ++ [RLIMIT_LOCKS] = "LOCKS", ++ [RLIMIT_SIGPENDING] = "SIGP", ++ [RLIMIT_MSGQUEUE] = "MSGQ", ++ ++ [VLIMIT_NSOCK] = "NSOCK", ++ [VLIMIT_OPENFD] = "OPENFD", ++ [VLIMIT_ANON] = "ANON", ++ [VLIMIT_SHMEM] = "SHMEM", ++}; ++ ++EXPORT_SYMBOL_GPL(vlimit_name); ++ ++ ++static int is_valid_rlimit(int id) ++{ ++ int valid = 0; ++ ++ switch (id) { ++ case RLIMIT_RSS: ++ case RLIMIT_NPROC: ++ case RLIMIT_NOFILE: ++ case RLIMIT_MEMLOCK: ++ case RLIMIT_AS: ++ case RLIMIT_LOCKS: ++ case RLIMIT_MSGQUEUE: ++ ++ case VLIMIT_NSOCK: ++ case VLIMIT_OPENFD: ++ case VLIMIT_ANON: ++ case VLIMIT_SHMEM: ++ valid = 1; ++ break; ++ } ++ return valid; ++} ++ ++static inline uint64_t vc_get_soft(struct vx_info *vxi, int id) ++{ ++ rlim_t limit = __rlim_soft(&vxi->limit, id); ++ return VX_VLIM(limit); ++} ++ ++static inline uint64_t vc_get_hard(struct vx_info *vxi, int id) ++{ ++ rlim_t limit = __rlim_hard(&vxi->limit, id); ++ return VX_VLIM(limit); ++} ++ ++int vc_get_rlimit(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_rlimit_v0 vc_data; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ if (!is_valid_rlimit(vc_data.id)) ++ return -EINVAL; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.minimum = CRLIM_UNSET; ++ vc_data.softlimit = vc_get_soft(vxi, vc_data.id); ++ vc_data.maximum = vc_get_hard(vxi, vc_data.id); ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_rlimit(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_rlimit_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ if (!is_valid_rlimit(vc_data.id)) ++ return -EINVAL; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ if (vc_data.maximum != CRLIM_KEEP) ++ __rlim_hard(&vxi->limit, vc_data.id) = ++ VX_RLIM(vc_data.maximum); ++ if (vc_data.softlimit != CRLIM_KEEP) ++ __rlim_soft(&vxi->limit, vc_data.id) = ++ VX_RLIM(vc_data.softlimit); ++ ++ /* clamp soft limit */ ++ if (__rlim_soft(&vxi->limit, vc_data.id) > ++ __rlim_hard(&vxi->limit, vc_data.id)) ++ __rlim_soft(&vxi->limit, vc_data.id) = ++ __rlim_hard(&vxi->limit, vc_data.id); ++ ++ put_vx_info(vxi); ++ ++ return 0; ++} ++ ++int vc_get_rlimit_mask(uint32_t id, void __user *data) ++{ ++ static struct vcmd_ctx_rlimit_mask_v0 mask = { ++ /* minimum */ ++ 0 ++ , /* softlimit */ ++ (1 << RLIMIT_RSS) | ++ (1 << VLIMIT_ANON) | ++ 0 ++ , /* maximum */ ++ (1 << RLIMIT_RSS) | ++ (1 << RLIMIT_NPROC) | ++ (1 << RLIMIT_NOFILE) | ++ (1 << RLIMIT_MEMLOCK) | ++ (1 << RLIMIT_LOCKS) | ++ (1 << RLIMIT_AS) | ++ (1 << VLIMIT_ANON) | ++ 0 ++ }; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ if (copy_to_user(data, &mask, sizeof(mask))) ++ return -EFAULT; ++ return 0; ++} ++ ++ ++void vx_vsi_meminfo(struct sysinfo *val) ++{ ++ struct vx_info *vxi = current->vx_info; ++ unsigned long totalram, freeram; ++ rlim_t v; ++ ++ /* we blindly accept the max */ ++ v = __rlim_soft(&vxi->limit, RLIMIT_RSS); ++ totalram = (v != RLIM_INFINITY) ? v : val->totalram; ++ ++ /* total minus used equals free */ ++ v = __rlim_get(&vxi->limit, RLIMIT_RSS); ++ freeram = (v < totalram) ? totalram - v : 0; ++ ++ val->totalram = totalram; ++ val->freeram = freeram; ++ val->bufferram = 0; ++ val->totalhigh = 0; ++ val->freehigh = 0; ++ return; ++} ++ ++void vx_vsi_swapinfo(struct sysinfo *val) ++{ ++ struct vx_info *vxi = current->vx_info; ++ unsigned long totalswap, freeswap; ++ rlim_t v, w; ++ ++ v = __rlim_soft(&vxi->limit, RLIMIT_RSS); ++ if (v == RLIM_INFINITY) { ++ val->freeswap = val->totalswap; ++ return; ++ } ++ ++ /* we blindly accept the max */ ++ w = __rlim_hard(&vxi->limit, RLIMIT_RSS); ++ totalswap = (w != RLIM_INFINITY) ? (w - v) : val->totalswap; ++ ++ /* currently 'used' swap */ ++ w = __rlim_get(&vxi->limit, RLIMIT_RSS); ++ w -= (w > v) ? v : w; ++ ++ /* total minus used equals free */ ++ freeswap = (w < totalswap) ? totalswap - w : 0; ++ ++ val->totalswap = totalswap; ++ val->freeswap = freeswap; ++ return; ++} ++ +Index: linux-2.6.16/kernel/vserver/limit_init.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/limit_init.h +@@ -0,0 +1,33 @@ ++ ++#include <linux/config.h> ++ ++ ++static inline void vx_info_init_limit(struct _vx_limit *limit) ++{ ++ int lim; ++ ++ for (lim=0; lim<NUM_LIMITS; lim++) { ++ __rlim_soft(limit, lim) = RLIM_INFINITY; ++ __rlim_hard(limit, lim) = RLIM_INFINITY; ++ __rlim_set(limit, lim, 0); ++ atomic_set(&__rlim_lhit(limit, lim), 0); ++ __rlim_rmin(limit, lim) = 0; ++ __rlim_rmax(limit, lim) = 0; ++ } ++} ++ ++static inline void vx_info_exit_limit(struct _vx_limit *limit) ++{ ++#ifdef CONFIG_VSERVER_DEBUG ++ rlim_t value; ++ int lim; ++ ++ for (lim=0; lim<NUM_LIMITS; lim++) { ++ value = __rlim_get(limit, lim); ++ vxwprintk(value, ++ "!!! limit: %p[%s,%d] = %ld on exit.", ++ limit, vlimit_name[lim], lim, (long)value); ++ } ++#endif ++} ++ +Index: linux-2.6.16/kernel/vserver/limit_proc.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/limit_proc.h +@@ -0,0 +1,69 @@ ++#ifndef _VX_LIMIT_PROC_H ++#define _VX_LIMIT_PROC_H ++ ++ ++static inline void vx_limit_fixup(struct _vx_limit *limit) ++{ ++ rlim_t value; ++ int lim; ++ ++ for (lim=0; lim<NUM_LIMITS; lim++) { ++ value = __rlim_get(limit, lim); ++ if (value > __rlim_rmax(limit, lim)) ++ __rlim_rmax(limit, lim) = value; ++ if (value < __rlim_rmin(limit, lim)) ++ __rlim_rmin(limit, lim) = value; ++ if (__rlim_rmax(limit, lim) > __rlim_hard(limit, lim)) ++ __rlim_rmax(limit, lim) = __rlim_hard(limit, lim); ++ } ++} ++ ++ ++#define VX_LIMIT_FMT ":\t%8ld\t%8ld/%8ld\t%8lld/%8lld\t%6d\n" ++#define VX_LIMIT_TOP \ ++ "Limit\t current\t min/max\t\t soft/hard\t\thits\n" ++ ++#define VX_LIMIT_ARG(r) \ ++ ,(unsigned long)__rlim_get(limit, r) \ ++ ,(unsigned long)__rlim_rmin(limit, r) \ ++ ,(unsigned long)__rlim_rmax(limit, r) \ ++ ,VX_VLIM(__rlim_soft(limit, r)) \ ++ ,VX_VLIM(__rlim_hard(limit, r)) \ ++ ,atomic_read(&__rlim_lhit(limit, r)) ++ ++static inline int vx_info_proc_limit(struct _vx_limit *limit, char *buffer) ++{ ++ vx_limit_fixup(limit); ++ return sprintf(buffer, VX_LIMIT_TOP ++ "PROC" VX_LIMIT_FMT ++ "VM" VX_LIMIT_FMT ++ "VML" VX_LIMIT_FMT ++ "RSS" VX_LIMIT_FMT ++ "ANON" VX_LIMIT_FMT ++ "FILES" VX_LIMIT_FMT ++ "OFD" VX_LIMIT_FMT ++ "LOCKS" VX_LIMIT_FMT ++ "SOCK" VX_LIMIT_FMT ++ "MSGQ" VX_LIMIT_FMT ++ "SHM" VX_LIMIT_FMT ++ "SEMA" VX_LIMIT_FMT ++ "SEMS" VX_LIMIT_FMT ++ VX_LIMIT_ARG(RLIMIT_NPROC) ++ VX_LIMIT_ARG(RLIMIT_AS) ++ VX_LIMIT_ARG(RLIMIT_MEMLOCK) ++ VX_LIMIT_ARG(RLIMIT_RSS) ++ VX_LIMIT_ARG(VLIMIT_ANON) ++ VX_LIMIT_ARG(RLIMIT_NOFILE) ++ VX_LIMIT_ARG(VLIMIT_OPENFD) ++ VX_LIMIT_ARG(RLIMIT_LOCKS) ++ VX_LIMIT_ARG(VLIMIT_NSOCK) ++ VX_LIMIT_ARG(RLIMIT_MSGQUEUE) ++ VX_LIMIT_ARG(VLIMIT_SHMEM) ++ VX_LIMIT_ARG(VLIMIT_SEMARY) ++ VX_LIMIT_ARG(VLIMIT_NSEMS) ++ ); ++} ++ ++#endif /* _VX_LIMIT_PROC_H */ ++ ++ +Index: linux-2.6.16/kernel/vserver/namespace.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/namespace.c +@@ -0,0 +1,123 @@ ++/* ++ * linux/kernel/vserver/namespace.c ++ * ++ * Virtual Server: Context Namespace Support ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from context.c 0.07 ++ * V0.02 added task locking for namespace ++ * ++ */ ++ ++#include <linux/utsname.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vserver/namespace.h> ++#include <linux/vserver/namespace_cmd.h> ++#include <linux/dcache.h> ++#include <linux/mount.h> ++#include <linux/fs.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++/* namespace functions */ ++ ++#include <linux/namespace.h> ++ ++int vx_set_namespace(struct vx_info *vxi, struct namespace *ns, struct fs_struct *fs) ++{ ++ struct fs_struct *fs_copy; ++ ++ if (vxi->vx_namespace) ++ return -EPERM; ++ if (!ns || !fs) ++ return -EINVAL; ++ ++ fs_copy = copy_fs_struct(fs); ++ if (!fs_copy) ++ return -ENOMEM; ++ ++ get_namespace(ns); ++ vxi->vx_namespace = ns; ++ vxi->vx_fs = fs_copy; ++ return 0; ++} ++ ++int vc_enter_namespace(uint32_t id, void *data) ++{ ++ struct vx_info *vxi; ++ struct fs_struct *old_fs, *fs; ++ struct namespace *old_ns; ++ int ret = 0; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ ret = -EINVAL; ++ if (!vxi->vx_namespace) ++ goto out_put; ++ ++ ret = -ENOMEM; ++ fs = copy_fs_struct(vxi->vx_fs); ++ if (!fs) ++ goto out_put; ++ ++ ret = 0; ++ task_lock(current); ++ old_ns = current->namespace; ++ old_fs = current->fs; ++ get_namespace(vxi->vx_namespace); ++ current->namespace = vxi->vx_namespace; ++ current->fs = fs; ++ task_unlock(current); ++ ++ put_namespace(old_ns); ++ put_fs_struct(old_fs); ++out_put: ++ put_vx_info(vxi); ++ return ret; ++} ++ ++int vc_cleanup_namespace(uint32_t id, void *data) ++{ ++ // down_write(¤t->namespace->sem); ++ spin_lock(&vfsmount_lock); ++ umount_unused(current->namespace->root, current->fs); ++ spin_unlock(&vfsmount_lock); ++ // up_write(¤t->namespace->sem); ++ return 0; ++} ++ ++int vc_set_namespace(uint32_t id, void __user *data) ++{ ++ struct fs_struct *fs; ++ struct namespace *ns; ++ struct vx_info *vxi; ++ int ret; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ task_lock(current); ++ fs = current->fs; ++ atomic_inc(&fs->count); ++ ns = current->namespace; ++ get_namespace(current->namespace); ++ task_unlock(current); ++ ++ ret = vx_set_namespace(vxi, ns, fs); ++ ++ put_namespace(ns); ++ put_fs_struct(fs); ++ put_vx_info(vxi); ++ return ret; ++} ++ +Index: linux-2.6.16/kernel/vserver/network.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/network.c +@@ -0,0 +1,803 @@ ++/* ++ * linux/kernel/vserver/network.c ++ * ++ * Virtual Server: Network Support ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext V0.05 ++ * V0.02 cleaned up implementation ++ * V0.03 added equiv nx commands ++ * V0.04 switch to RCU based hash ++ * V0.05 and back to locking again ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/slab.h> ++#include <linux/vserver/network_cmd.h> ++#include <linux/rcupdate.h> ++#include <net/tcp.h> ++ ++#include <asm/errno.h> ++ ++ ++/* __alloc_nx_info() ++ ++ * allocate an initialized nx_info struct ++ * doesn't make it visible (hash) */ ++ ++static struct nx_info *__alloc_nx_info(nid_t nid) ++{ ++ struct nx_info *new = NULL; ++ ++ vxdprintk(VXD_CBIT(nid, 1), "alloc_nx_info(%d)*", nid); ++ ++ /* would this benefit from a slab cache? */ ++ new = kmalloc(sizeof(struct nx_info), GFP_KERNEL); ++ if (!new) ++ return 0; ++ ++ memset (new, 0, sizeof(struct nx_info)); ++ new->nx_id = nid; ++ INIT_HLIST_NODE(&new->nx_hlist); ++ atomic_set(&new->nx_usecnt, 0); ++ atomic_set(&new->nx_tasks, 0); ++ new->nx_state = 0; ++ ++ new->nx_flags = NXF_INIT_SET; ++ ++ /* rest of init goes here */ ++ ++ vxdprintk(VXD_CBIT(nid, 0), ++ "alloc_nx_info(%d) = %p", nid, new); ++ return new; ++} ++ ++/* __dealloc_nx_info() ++ ++ * final disposal of nx_info */ ++ ++static void __dealloc_nx_info(struct nx_info *nxi) ++{ ++ vxdprintk(VXD_CBIT(nid, 0), ++ "dealloc_nx_info(%p)", nxi); ++ ++ nxi->nx_hlist.next = LIST_POISON1; ++ nxi->nx_id = -1; ++ ++ BUG_ON(atomic_read(&nxi->nx_usecnt)); ++ BUG_ON(atomic_read(&nxi->nx_tasks)); ++ ++ nxi->nx_state |= NXS_RELEASED; ++ kfree(nxi); ++} ++ ++static void __shutdown_nx_info(struct nx_info *nxi) ++{ ++ nxi->nx_state |= NXS_SHUTDOWN; ++ vs_net_change(nxi, VSC_NETDOWN); ++} ++ ++/* exported stuff */ ++ ++void free_nx_info(struct nx_info *nxi) ++{ ++ /* context shutdown is mandatory */ ++ BUG_ON(nxi->nx_state != NXS_SHUTDOWN); ++ ++ /* context must not be hashed */ ++ BUG_ON(nxi->nx_state & NXS_HASHED); ++ ++ BUG_ON(atomic_read(&nxi->nx_usecnt)); ++ BUG_ON(atomic_read(&nxi->nx_tasks)); ++ ++ __dealloc_nx_info(nxi); ++} ++ ++ ++/* hash table for nx_info hash */ ++ ++#define NX_HASH_SIZE 13 ++ ++struct hlist_head nx_info_hash[NX_HASH_SIZE]; ++ ++static spinlock_t nx_info_hash_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++static inline unsigned int __hashval(nid_t nid) ++{ ++ return (nid % NX_HASH_SIZE); ++} ++ ++ ++ ++/* __hash_nx_info() ++ ++ * add the nxi to the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __hash_nx_info(struct nx_info *nxi) ++{ ++ struct hlist_head *head; ++ ++ vxd_assert_lock(&nx_info_hash_lock); ++ vxdprintk(VXD_CBIT(nid, 4), ++ "__hash_nx_info: %p[#%d]", nxi, nxi->nx_id); ++ ++ /* context must not be hashed */ ++ BUG_ON(nx_info_state(nxi, NXS_HASHED)); ++ ++ nxi->nx_state |= NXS_HASHED; ++ head = &nx_info_hash[__hashval(nxi->nx_id)]; ++ hlist_add_head(&nxi->nx_hlist, head); ++} ++ ++/* __unhash_nx_info() ++ ++ * remove the nxi from the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __unhash_nx_info(struct nx_info *nxi) ++{ ++ vxd_assert_lock(&nx_info_hash_lock); ++ vxdprintk(VXD_CBIT(nid, 4), ++ "__unhash_nx_info: %p[#%d]", nxi, nxi->nx_id); ++ ++ /* context must be hashed */ ++ BUG_ON(!nx_info_state(nxi, NXS_HASHED)); ++ ++ nxi->nx_state &= ~NXS_HASHED; ++ hlist_del(&nxi->nx_hlist); ++} ++ ++ ++/* __lookup_nx_info() ++ ++ * requires the hash_lock to be held ++ * doesn't increment the nx_refcnt */ ++ ++static inline struct nx_info *__lookup_nx_info(nid_t nid) ++{ ++ struct hlist_head *head = &nx_info_hash[__hashval(nid)]; ++ struct hlist_node *pos; ++ struct nx_info *nxi; ++ ++ vxd_assert_lock(&nx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ nxi = hlist_entry(pos, struct nx_info, nx_hlist); ++ ++ if (nxi->nx_id == nid) ++ goto found; ++ } ++ nxi = NULL; ++found: ++ vxdprintk(VXD_CBIT(nid, 0), ++ "__lookup_nx_info(#%u): %p[#%u]", ++ nid, nxi, nxi?nxi->nx_id:0); ++ return nxi; ++} ++ ++ ++/* __nx_dynamic_id() ++ ++ * find unused dynamic nid ++ * requires the hash_lock to be held */ ++ ++static inline nid_t __nx_dynamic_id(void) ++{ ++ static nid_t seq = MAX_N_CONTEXT; ++ nid_t barrier = seq; ++ ++ vxd_assert_lock(&nx_info_hash_lock); ++ do { ++ if (++seq > MAX_N_CONTEXT) ++ seq = MIN_D_CONTEXT; ++ if (!__lookup_nx_info(seq)) { ++ vxdprintk(VXD_CBIT(nid, 4), ++ "__nx_dynamic_id: [#%d]", seq); ++ return seq; ++ } ++ } while (barrier != seq); ++ return 0; ++} ++ ++/* __create_nx_info() ++ ++ * create the requested context ++ * get() and hash it */ ++ ++static struct nx_info * __create_nx_info(int id) ++{ ++ struct nx_info *new, *nxi = NULL; ++ ++ vxdprintk(VXD_CBIT(nid, 1), "create_nx_info(%d)*", id); ++ ++ if (!(new = __alloc_nx_info(id))) ++ return ERR_PTR(-ENOMEM); ++ ++ /* required to make dynamic xids unique */ ++ spin_lock(&nx_info_hash_lock); ++ ++ /* dynamic context requested */ ++ if (id == NX_DYNAMIC_ID) { ++#ifdef CONFIG_VSERVER_DYNAMIC_IDS ++ id = __nx_dynamic_id(); ++ if (!id) { ++ printk(KERN_ERR "no dynamic context available.\n"); ++ nxi = ERR_PTR(-EAGAIN); ++ goto out_unlock; ++ } ++ new->nx_id = id; ++#else ++ printk(KERN_ERR "dynamic contexts disabled.\n"); ++ nxi = ERR_PTR(-EINVAL); ++ goto out_unlock; ++#endif ++ } ++ /* static context requested */ ++ else if ((nxi = __lookup_nx_info(id))) { ++ vxdprintk(VXD_CBIT(nid, 0), ++ "create_nx_info(%d) = %p (already there)", id, nxi); ++ if (nx_info_flags(nxi, NXF_STATE_SETUP, 0)) ++ nxi = ERR_PTR(-EBUSY); ++ else ++ nxi = ERR_PTR(-EEXIST); ++ goto out_unlock; ++ } ++ /* dynamic nid creation blocker */ ++ else if (id >= MIN_D_CONTEXT) { ++ vxdprintk(VXD_CBIT(nid, 0), ++ "create_nx_info(%d) (dynamic rejected)", id); ++ nxi = ERR_PTR(-EINVAL); ++ goto out_unlock; ++ } ++ ++ /* new context */ ++ vxdprintk(VXD_CBIT(nid, 0), ++ "create_nx_info(%d) = %p (new)", id, new); ++ __hash_nx_info(get_nx_info(new)); ++ nxi = new, new = NULL; ++ ++out_unlock: ++ spin_unlock(&nx_info_hash_lock); ++ if (new) ++ __dealloc_nx_info(new); ++ return nxi; ++} ++ ++ ++ ++/* exported stuff */ ++ ++ ++void unhash_nx_info(struct nx_info *nxi) ++{ ++ __shutdown_nx_info(nxi); ++ spin_lock(&nx_info_hash_lock); ++ __unhash_nx_info(nxi); ++ spin_unlock(&nx_info_hash_lock); ++} ++ ++#ifdef CONFIG_VSERVER_LEGACYNET ++ ++struct nx_info *create_nx_info(void) ++{ ++ return __create_nx_info(NX_DYNAMIC_ID); ++} ++ ++#endif ++ ++/* lookup_nx_info() ++ ++ * search for a nx_info and get() it ++ * negative id means current */ ++ ++struct nx_info *lookup_nx_info(int id) ++{ ++ struct nx_info *nxi = NULL; ++ ++ if (id < 0) { ++ nxi = get_nx_info(current->nx_info); ++ } else if (id > 1) { ++ spin_lock(&nx_info_hash_lock); ++ nxi = get_nx_info(__lookup_nx_info(id)); ++ spin_unlock(&nx_info_hash_lock); ++ } ++ return nxi; ++} ++ ++/* nid_is_hashed() ++ ++ * verify that nid is still hashed */ ++ ++int nid_is_hashed(nid_t nid) ++{ ++ int hashed; ++ ++ spin_lock(&nx_info_hash_lock); ++ hashed = (__lookup_nx_info(nid) != NULL); ++ spin_unlock(&nx_info_hash_lock); ++ return hashed; ++} ++ ++ ++#ifdef CONFIG_PROC_FS ++ ++/* get_nid_list() ++ ++ * get a subset of hashed nids for proc ++ * assumes size is at least one */ ++ ++int get_nid_list(int index, unsigned int *nids, int size) ++{ ++ int hindex, nr_nids = 0; ++ ++ /* only show current and children */ ++ if (!nx_check(0, VX_ADMIN|VX_WATCH)) { ++ if (index > 0) ++ return 0; ++ nids[nr_nids] = nx_current_nid(); ++ return 1; ++ } ++ ++ for (hindex = 0; hindex < NX_HASH_SIZE; hindex++) { ++ struct hlist_head *head = &nx_info_hash[hindex]; ++ struct hlist_node *pos; ++ ++ spin_lock(&nx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ struct nx_info *nxi; ++ ++ if (--index > 0) ++ continue; ++ ++ nxi = hlist_entry(pos, struct nx_info, nx_hlist); ++ nids[nr_nids] = nxi->nx_id; ++ if (++nr_nids >= size) { ++ spin_unlock(&nx_info_hash_lock); ++ goto out; ++ } ++ } ++ /* keep the lock time short */ ++ spin_unlock(&nx_info_hash_lock); ++ } ++out: ++ return nr_nids; ++} ++#endif ++ ++ ++/* ++ * migrate task to new network ++ * gets nxi, puts old_nxi on change ++ */ ++ ++int nx_migrate_task(struct task_struct *p, struct nx_info *nxi) ++{ ++ struct nx_info *old_nxi; ++ int ret = 0; ++ ++ if (!p || !nxi) ++ BUG(); ++ ++ vxdprintk(VXD_CBIT(nid, 5), ++ "nx_migrate_task(%p,%p[#%d.%d.%d])", ++ p, nxi, nxi->nx_id, ++ atomic_read(&nxi->nx_usecnt), ++ atomic_read(&nxi->nx_tasks)); ++ ++ /* maybe disallow this completely? */ ++ old_nxi = task_get_nx_info(p); ++ if (old_nxi == nxi) ++ goto out; ++ ++ task_lock(p); ++ if (old_nxi) ++ clr_nx_info(&p->nx_info); ++ claim_nx_info(nxi, p); ++ set_nx_info(&p->nx_info, nxi); ++ p->nid = nxi->nx_id; ++ task_unlock(p); ++ ++ vxdprintk(VXD_CBIT(nid, 5), ++ "moved task %p into nxi:%p[#%d]", ++ p, nxi, nxi->nx_id); ++ ++ if (old_nxi) ++ release_nx_info(old_nxi, p); ++out: ++ put_nx_info(old_nxi); ++ return ret; ++} ++ ++ ++#ifdef CONFIG_INET ++ ++#include <linux/netdevice.h> ++#include <linux/inetdevice.h> ++ ++int ifa_in_nx_info(struct in_ifaddr *ifa, struct nx_info *nxi) ++{ ++ if (!nxi) ++ return 1; ++ if (!ifa) ++ return 0; ++ return addr_in_nx_info(nxi, ifa->ifa_address); ++} ++ ++int dev_in_nx_info(struct net_device *dev, struct nx_info *nxi) ++{ ++ struct in_device *in_dev; ++ struct in_ifaddr **ifap; ++ struct in_ifaddr *ifa; ++ int ret = 0; ++ ++ if (!nxi) ++ return 1; ++ ++ in_dev = in_dev_get(dev); ++ if (!in_dev) ++ goto out; ++ ++ for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; ++ ifap = &ifa->ifa_next) { ++ if (addr_in_nx_info(nxi, ifa->ifa_address)) { ++ ret = 1; ++ break; ++ } ++ } ++ in_dev_put(in_dev); ++out: ++ return ret; ++} ++ ++/* ++ * check if address is covered by socket ++ * ++ * sk: the socket to check against ++ * addr: the address in question (must be != 0) ++ */ ++static inline int __addr_in_socket(struct sock *sk, uint32_t addr) ++{ ++ struct nx_info *nxi = sk->sk_nx_info; ++ uint32_t saddr = inet_rcv_saddr(sk); ++ ++ vxdprintk(VXD_CBIT(net, 5), ++ "__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx", ++ sk, VXD_QUAD(addr), nxi, VXD_QUAD(saddr), sk->sk_socket, ++ (sk->sk_socket?sk->sk_socket->flags:0)); ++ ++ if (saddr) { ++ /* direct address match */ ++ return (saddr == addr); ++ } else if (nxi) { ++ /* match against nx_info */ ++ return addr_in_nx_info(nxi, addr); ++ } else { ++ /* unrestricted any socket */ ++ return 1; ++ } ++} ++ ++ ++int nx_addr_conflict(struct nx_info *nxi, uint32_t addr, struct sock *sk) ++{ ++ vxdprintk(VXD_CBIT(net, 2), ++ "nx_addr_conflict(%p,%p) %d.%d,%d.%d", ++ nxi, sk, VXD_QUAD(addr)); ++ ++ if (addr) { ++ /* check real address */ ++ return __addr_in_socket(sk, addr); ++ } else if (nxi) { ++ /* check against nx_info */ ++ int i, n = nxi->nbipv4; ++ ++ for (i=0; i<n; i++) ++ if (__addr_in_socket(sk, nxi->ipv4[i])) ++ return 1; ++ return 0; ++ } else { ++ /* check against any */ ++ return 1; ++ } ++} ++ ++#endif /* CONFIG_INET */ ++ ++void nx_set_persistent(struct nx_info *nxi) ++{ ++ if (nx_info_flags(nxi, NXF_PERSISTENT, 0)) { ++ get_nx_info(nxi); ++ claim_nx_info(nxi, current); ++ } else { ++ release_nx_info(nxi, current); ++ put_nx_info(nxi); ++ } ++} ++ ++/* vserver syscall commands below here */ ++ ++/* taks nid and nx_info functions */ ++ ++#include <asm/uaccess.h> ++ ++ ++int vc_task_nid(uint32_t id, void __user *data) ++{ ++ nid_t nid; ++ ++ if (id) { ++ struct task_struct *tsk; ++ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -EPERM; ++ ++ read_lock(&tasklist_lock); ++ tsk = find_task_by_real_pid(id); ++ nid = (tsk) ? tsk->nid : -ESRCH; ++ read_unlock(&tasklist_lock); ++ } ++ else ++ nid = nx_current_nid(); ++ return nid; ++} ++ ++ ++int vc_nx_info(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_nx_info_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ ++ nxi = lookup_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ vc_data.nid = nxi->nx_id; ++ put_nx_info(nxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++ ++/* network functions */ ++ ++int vc_net_create(uint32_t nid, void __user *data) ++{ ++ struct vcmd_net_create vc_data = { .flagword = NXF_INIT_SET }; ++ struct nx_info *new_nxi; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ if ((nid > MAX_S_CONTEXT) && (nid != VX_DYNAMIC_ID)) ++ return -EINVAL; ++ if (nid < 2) ++ return -EINVAL; ++ ++ new_nxi = __create_nx_info(nid); ++ if (IS_ERR(new_nxi)) ++ return PTR_ERR(new_nxi); ++ ++ /* initial flags */ ++ new_nxi->nx_flags = vc_data.flagword; ++ ++ /* get a reference for persistent contexts */ ++ if ((vc_data.flagword & NXF_PERSISTENT)) ++ nx_set_persistent(new_nxi); ++ ++ vs_net_change(new_nxi, VSC_NETUP); ++ ret = new_nxi->nx_id; ++ nx_migrate_task(current, new_nxi); ++ /* if this fails, we might end up with a hashed nx_info */ ++ put_nx_info(new_nxi); ++ return ret; ++} ++ ++ ++int vc_net_migrate(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ nxi = lookup_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ nx_migrate_task(current, nxi); ++ put_nx_info(nxi); ++ return 0; ++} ++ ++int vc_net_add(uint32_t nid, void __user *data) ++{ ++ struct vcmd_net_addr_v0 vc_data; ++ struct nx_info *nxi; ++ int index, pos, ret = 0; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ switch (vc_data.type) { ++ case NXA_TYPE_IPV4: ++ if ((vc_data.count < 1) || (vc_data.count > 4)) ++ return -EINVAL; ++ break; ++ ++ default: ++ break; ++ } ++ ++ nxi = lookup_nx_info(nid); ++ if (!nxi) ++ return -ESRCH; ++ ++ switch (vc_data.type) { ++ case NXA_TYPE_IPV4: ++ index = 0; ++ while ((index < vc_data.count) && ++ ((pos = nxi->nbipv4) < NB_IPV4ROOT)) { ++ nxi->ipv4[pos] = vc_data.ip[index]; ++ nxi->mask[pos] = vc_data.mask[index]; ++ index++; ++ nxi->nbipv4++; ++ } ++ ret = index; ++ break; ++ ++ case NXA_TYPE_IPV4|NXA_MOD_BCAST: ++ nxi->v4_bcast = vc_data.ip[0]; ++ ret = 1; ++ break; ++ ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++ put_nx_info(nxi); ++ return ret; ++} ++ ++int vc_net_remove(uint32_t nid, void __user *data) ++{ ++ struct vcmd_net_addr_v0 vc_data; ++ struct nx_info *nxi; ++ int ret = 0; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ nxi = lookup_nx_info(nid); ++ if (!nxi) ++ return -ESRCH; ++ ++ switch ((unsigned)vc_data.type) { ++ case NXA_TYPE_ANY: ++ nxi->nbipv4 = 0; ++ break; ++ ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++ put_nx_info(nxi); ++ return ret; ++} ++ ++int vc_get_nflags(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_flags_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ nxi = lookup_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ vc_data.flagword = nxi->nx_flags; ++ ++ /* special STATE flag handling */ ++ vc_data.mask = vx_mask_flags(~0UL, nxi->nx_flags, NXF_ONE_TIME); ++ ++ put_nx_info(nxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_nflags(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_flags_v0 vc_data; ++ uint64_t mask, trigger; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ nxi = lookup_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ /* special STATE flag handling */ ++ mask = vx_mask_mask(vc_data.mask, nxi->nx_flags, NXF_ONE_TIME); ++ trigger = (mask & nxi->nx_flags) ^ (mask & vc_data.flagword); ++ ++ nxi->nx_flags = vx_mask_flags(nxi->nx_flags, ++ vc_data.flagword, mask); ++ if (trigger & NXF_PERSISTENT) ++ nx_set_persistent(nxi); ++ ++ put_nx_info(nxi); ++ return 0; ++} ++ ++int vc_get_ncaps(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ nxi = lookup_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ vc_data.ncaps = nxi->nx_ncaps; ++ vc_data.cmask = ~0UL; ++ put_nx_info(nxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_ncaps(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ nxi = lookup_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ nxi->nx_ncaps = vx_mask_flags(nxi->nx_ncaps, ++ vc_data.ncaps, vc_data.cmask); ++ put_nx_info(nxi); ++ return 0; ++} ++ ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(free_nx_info); ++EXPORT_SYMBOL_GPL(unhash_nx_info); ++ +Index: linux-2.6.16/kernel/vserver/proc.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/proc.c +@@ -0,0 +1,925 @@ ++/* ++ * linux/kernel/vserver/proc.c ++ * ++ * Virtual Context Support ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * V0.02 adaptation vs1.3.0 ++ * V0.03 proc permissions ++ * V0.04 locking/generic ++ * V0.05 next generation procfs ++ * V0.06 inode validation ++ * V0.07 generic rewrite vid ++ * ++ */ ++ ++#include <linux/errno.h> ++#include <linux/proc_fs.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_cvirt.h> ++ ++#include <linux/vserver/switch.h> ++#include <linux/vserver/global.h> ++ ++#include <asm/uaccess.h> ++#include <asm/unistd.h> ++ ++#include "cvirt_proc.h" ++#include "limit_proc.h" ++#include "sched_proc.h" ++#include "vci_config.h" ++ ++static struct proc_dir_entry *proc_virtual; ++ ++static struct proc_dir_entry *proc_vnet; ++ ++ ++enum vid_directory_inos { ++ PROC_XID_INO = 32, ++ PROC_XID_INFO, ++ PROC_XID_STATUS, ++ PROC_XID_LIMIT, ++ PROC_XID_SCHED, ++ PROC_XID_CVIRT, ++ PROC_XID_CACCT, ++ ++ PROC_NID_INO = 64, ++ PROC_NID_INFO, ++ PROC_NID_STATUS, ++}; ++ ++#define PROC_VID_MASK 0x60 ++ ++ ++/* first the actual feeds */ ++ ++ ++static int proc_virtual_info(int vid, char *buffer) ++{ ++ return sprintf(buffer, ++ "VCIVersion:\t%04x:%04x\n" ++ "VCISyscall:\t%d\n" ++ "VCIKernel:\t%08x\n" ++ ,VCI_VERSION >> 16 ++ ,VCI_VERSION & 0xFFFF ++ ,__NR_vserver ++ ,vci_kernel_config() ++ ); ++} ++ ++static int proc_virtual_status(int vid, char *buffer) ++{ ++ return sprintf(buffer, ++ "#CTotal:\t%d\n" ++ "#CActive:\t%d\n" ++ ,atomic_read(&vx_global_ctotal) ++ ,atomic_read(&vx_global_cactive) ++ ); ++} ++ ++ ++int proc_xid_info (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = lookup_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = sprintf(buffer, ++ "ID:\t%d\n" ++ "Info:\t%p\n" ++ "Init:\t%d\n" ++ ,vxi->vx_id ++ ,vxi ++ ,vxi->vx_initpid ++ ); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_status (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = lookup_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = sprintf(buffer, ++ "UseCnt:\t%d\n" ++ "Tasks:\t%d\n" ++ "Flags:\t%016llx\n" ++ "BCaps:\t%016llx\n" ++ "CCaps:\t%016llx\n" ++// "Ticks:\t%d\n" ++ ,atomic_read(&vxi->vx_usecnt) ++ ,atomic_read(&vxi->vx_tasks) ++ ,(unsigned long long)vxi->vx_flags ++ ,(unsigned long long)vxi->vx_bcaps ++ ,(unsigned long long)vxi->vx_ccaps ++// ,atomic_read(&vxi->limit.ticks) ++ ); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_limit (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = lookup_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = vx_info_proc_limit(&vxi->limit, buffer); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_sched (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int cpu, length; ++ ++ vxi = lookup_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = vx_info_proc_sched(&vxi->sched, buffer); ++ for_each_online_cpu(cpu) { ++ length += vx_info_proc_sched_pc( ++ &vx_per_cpu(vxi, sched_pc, cpu), ++ buffer + length, cpu); ++ } ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_cvirt (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int cpu, length; ++ ++ vxi = lookup_vx_info(vid); ++ if (!vxi) ++ return 0; ++ vx_update_load(vxi); ++ length = vx_info_proc_cvirt(&vxi->cvirt, buffer); ++ for_each_online_cpu(cpu) { ++ length += vx_info_proc_cvirt_pc( ++ &vx_per_cpu(vxi, cvirt_pc, cpu), ++ buffer + length, cpu); ++ } ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_cacct (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = lookup_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = vx_info_proc_cacct(&vxi->cacct, buffer); ++ put_vx_info(vxi); ++ return length; ++} ++ ++ ++static int proc_vnet_info(int vid, char *buffer) ++{ ++ return sprintf(buffer, ++ "VCIVersion:\t%04x:%04x\n" ++ "VCISyscall:\t%d\n" ++ ,VCI_VERSION >> 16 ++ ,VCI_VERSION & 0xFFFF ++ ,__NR_vserver ++ ); ++} ++ ++#define atoquad(a) \ ++ (((a)>>0) & 0xff), (((a)>>8) & 0xff), \ ++ (((a)>>16) & 0xff), (((a)>>24) & 0xff) ++ ++int proc_nid_info (int vid, char *buffer) ++{ ++ struct nx_info *nxi; ++ int length, i; ++ ++ nxi = lookup_nx_info(vid); ++ if (!nxi) ++ return 0; ++ length = sprintf(buffer, ++ "ID:\t%d\n" ++ "Info:\t%p\n" ++ ,nxi->nx_id ++ ,nxi ++ ); ++ for (i=0; i<nxi->nbipv4; i++) { ++ length += sprintf(buffer + length, ++ "%d:\t%d.%d.%d.%d/%d.%d.%d.%d\n", i, ++ atoquad(nxi->ipv4[i]), ++ atoquad(nxi->mask[i])); ++ } ++ put_nx_info(nxi); ++ return length; ++} ++ ++int proc_nid_status (int vid, char *buffer) ++{ ++ struct nx_info *nxi; ++ int length; ++ ++ nxi = lookup_nx_info(vid); ++ if (!nxi) ++ return 0; ++ length = sprintf(buffer, ++ "UseCnt:\t%d\n" ++ "Tasks:\t%d\n" ++ ,atomic_read(&nxi->nx_usecnt) ++ ,atomic_read(&nxi->nx_tasks) ++ ); ++ put_nx_info(nxi); ++ return length; ++} ++ ++/* here the inode helpers */ ++ ++ ++#define fake_ino(id,nr) (((nr) & 0xFFFF) | \ ++ (((id) & 0xFFFF) << 16)) ++ ++#define inode_vid(i) (((i)->i_ino >> 16) & 0xFFFF) ++#define inode_type(i) ((i)->i_ino & 0xFFFF) ++ ++#define MAX_MULBY10 ((~0U-9)/10) ++ ++ ++static struct inode *proc_vid_make_inode(struct super_block * sb, ++ int vid, int ino) ++{ ++ struct inode *inode = new_inode(sb); ++ ++ if (!inode) ++ goto out; ++ ++ inode->i_mtime = inode->i_atime = ++ inode->i_ctime = CURRENT_TIME; ++ inode->i_ino = fake_ino(vid, ino); ++ ++ inode->i_uid = 0; ++ inode->i_gid = 0; ++out: ++ return inode; ++} ++ ++static int proc_vid_revalidate(struct dentry * dentry, struct nameidata *nd) ++{ ++ struct inode * inode = dentry->d_inode; ++ int vid, hashed=0; ++ ++ vid = inode_vid(inode); ++ switch (inode_type(inode) & PROC_VID_MASK) { ++ case PROC_XID_INO: ++ hashed = xid_is_hashed(vid); ++ break; ++ case PROC_NID_INO: ++ hashed = nid_is_hashed(vid); ++ break; ++ } ++ if (hashed) ++ return 1; ++ d_drop(dentry); ++ return 0; ++} ++ ++ ++#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024) ++ ++static ssize_t proc_vid_info_read(struct file * file, char * buf, ++ size_t count, loff_t *ppos) ++{ ++ struct inode * inode = file->f_dentry->d_inode; ++ unsigned long page; ++ ssize_t length; ++ int vid; ++ ++ if (count > PROC_BLOCK_SIZE) ++ count = PROC_BLOCK_SIZE; ++ if (!(page = __get_free_page(GFP_KERNEL))) ++ return -ENOMEM; ++ ++ vid = inode_vid(inode); ++ length = PROC_I(inode)->op.proc_vid_read(vid, (char*)page); ++ ++ if (length >= 0) ++ length = simple_read_from_buffer(buf, count, ppos, ++ (char *)page, length); ++ free_page(page); ++ return length; ++} ++ ++ ++ ++ ++ ++/* here comes the lower level (vid) */ ++ ++static struct file_operations proc_vid_info_file_operations = { ++ read: proc_vid_info_read, ++}; ++ ++static struct dentry_operations proc_vid_dentry_operations = { ++ d_revalidate: proc_vid_revalidate, ++}; ++ ++ ++struct vid_entry { ++ int type; ++ int len; ++ char *name; ++ mode_t mode; ++}; ++ ++#define E(type,name,mode) {(type),sizeof(name)-1,(name),(mode)} ++ ++static struct vid_entry vx_base_stuff[] = { ++ E(PROC_XID_INFO, "info", S_IFREG|S_IRUGO), ++ E(PROC_XID_STATUS, "status", S_IFREG|S_IRUGO), ++ E(PROC_XID_LIMIT, "limit", S_IFREG|S_IRUGO), ++ E(PROC_XID_SCHED, "sched", S_IFREG|S_IRUGO), ++ E(PROC_XID_CVIRT, "cvirt", S_IFREG|S_IRUGO), ++ E(PROC_XID_CACCT, "cacct", S_IFREG|S_IRUGO), ++ {0,0,NULL,0} ++}; ++ ++static struct vid_entry vn_base_stuff[] = { ++ E(PROC_NID_INFO, "info", S_IFREG|S_IRUGO), ++ E(PROC_NID_STATUS, "status", S_IFREG|S_IRUGO), ++ {0,0,NULL,0} ++}; ++ ++ ++ ++static struct dentry *proc_vid_lookup(struct inode *dir, ++ struct dentry *dentry, struct nameidata *nd) ++{ ++ struct inode *inode; ++ struct vid_entry *p; ++ int error; ++ ++ error = -ENOENT; ++ inode = NULL; ++ ++ switch (inode_type(dir)) { ++ case PROC_XID_INO: ++ p = vx_base_stuff; ++ break; ++ case PROC_NID_INO: ++ p = vn_base_stuff; ++ break; ++ default: ++ goto out; ++ } ++ ++ for (; p->name; p++) { ++ if (p->len != dentry->d_name.len) ++ continue; ++ if (!memcmp(dentry->d_name.name, p->name, p->len)) ++ break; ++ } ++ if (!p->name) ++ goto out; ++ ++ error = -EINVAL; ++ inode = proc_vid_make_inode(dir->i_sb, inode_vid(dir), p->type); ++ if (!inode) ++ goto out; ++ ++ switch(p->type) { ++ case PROC_XID_INFO: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_info; ++ break; ++ case PROC_XID_STATUS: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_status; ++ break; ++ case PROC_XID_LIMIT: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_limit; ++ break; ++ case PROC_XID_SCHED: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_sched; ++ break; ++ case PROC_XID_CVIRT: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_cvirt; ++ break; ++ case PROC_XID_CACCT: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_cacct; ++ break; ++ ++ case PROC_NID_INFO: ++ PROC_I(inode)->op.proc_vid_read = proc_nid_info; ++ break; ++ case PROC_NID_STATUS: ++ PROC_I(inode)->op.proc_vid_read = proc_nid_status; ++ break; ++ ++ default: ++ printk("procfs: impossible type (%d)",p->type); ++ iput(inode); ++ return ERR_PTR(-EINVAL); ++ } ++ inode->i_mode = p->mode; ++ inode->i_fop = &proc_vid_info_file_operations; ++ inode->i_nlink = 1; ++ inode->i_flags|=S_IMMUTABLE; ++ ++ dentry->d_op = &proc_vid_dentry_operations; ++ d_add(dentry, inode); ++ error = 0; ++out: ++ return ERR_PTR(error); ++} ++ ++ ++static int proc_vid_readdir(struct file * filp, ++ void * dirent, filldir_t filldir) ++{ ++ int i, size; ++ struct inode *inode = filp->f_dentry->d_inode; ++ struct vid_entry *p; ++ ++ i = filp->f_pos; ++ switch (i) { ++ case 0: ++ if (filldir(dirent, ".", 1, i, ++ inode->i_ino, DT_DIR) < 0) ++ return 0; ++ i++; ++ filp->f_pos++; ++ /* fall through */ ++ case 1: ++ if (filldir(dirent, "..", 2, i, ++ PROC_ROOT_INO, DT_DIR) < 0) ++ return 0; ++ i++; ++ filp->f_pos++; ++ /* fall through */ ++ default: ++ i -= 2; ++ switch (inode_type(inode)) { ++ case PROC_XID_INO: ++ size = sizeof(vx_base_stuff); ++ p = vx_base_stuff + i; ++ break; ++ case PROC_NID_INO: ++ size = sizeof(vn_base_stuff); ++ p = vn_base_stuff + i; ++ break; ++ default: ++ return 1; ++ } ++ if (i >= size/sizeof(struct vid_entry)) ++ return 1; ++ while (p->name) { ++ if (filldir(dirent, p->name, p->len, ++ filp->f_pos, fake_ino(inode_vid(inode), ++ p->type), p->mode >> 12) < 0) ++ return 0; ++ filp->f_pos++; ++ p++; ++ } ++ } ++ return 1; ++} ++ ++ ++ ++ ++/* now the upper level (virtual) */ ++ ++static struct file_operations proc_vid_file_operations = { ++ read: generic_read_dir, ++ readdir: proc_vid_readdir, ++}; ++ ++static struct inode_operations proc_vid_inode_operations = { ++ lookup: proc_vid_lookup, ++}; ++ ++ ++ ++static __inline__ int atovid(const char *str, int len) ++{ ++ int vid, c; ++ ++ vid = 0; ++ while (len-- > 0) { ++ c = *str - '0'; ++ str++; ++ if (c > 9) ++ return -1; ++ if (vid >= MAX_MULBY10) ++ return -1; ++ vid *= 10; ++ vid += c; ++ if (!vid) ++ return -1; ++ } ++ return vid; ++} ++ ++static __inline__ unsigned long atoaddr(const char *str, int len) ++{ ++ unsigned long addr, c; ++ ++ addr = 0; ++ while (len-- > 0) { ++ c = *str - '0'; ++ if (c > 9) ++ c -= 'A'-'0'+10; ++ if (c > 15) ++ c -= 'a'-'A'; ++ if (c > 15) ++ return -1; ++ str++; ++ if (addr >= ((1 << 28) - 1)) ++ return -1; ++ addr = (addr << 4) | c; ++ if (!addr) ++ return -1; ++ } ++ return addr; ++} ++ ++ ++struct dentry *proc_virtual_lookup(struct inode *dir, ++ struct dentry * dentry, struct nameidata *nd) ++{ ++ int xid, len, ret; ++ struct vx_info *vxi; ++ const char *name; ++ struct inode *inode; ++ ++ name = dentry->d_name.name; ++ len = dentry->d_name.len; ++ ret = -ENOMEM; ++ ++#if 0 ++ if (len == 7 && !memcmp(name, "current", 7)) { ++ inode = new_inode(dir->i_sb); ++ if (!inode) ++ goto out; ++ inode->i_mtime = inode->i_atime = ++ inode->i_ctime = CURRENT_TIME; ++ inode->i_ino = fake_ino(1, PROC_XID_INO); ++ inode->i_mode = S_IFLNK|S_IRWXUGO; ++ inode->i_uid = inode->i_gid = 0; ++ d_add(dentry, inode); ++ return NULL; ++ } ++#endif ++ if (len == 4 && !memcmp(name, "info", 4)) { ++ inode = proc_vid_make_inode(dir->i_sb, 0, PROC_XID_INFO); ++ if (!inode) ++ goto out; ++ inode->i_fop = &proc_vid_info_file_operations; ++ PROC_I(inode)->op.proc_vid_read = proc_virtual_info; ++ inode->i_mode = S_IFREG|S_IRUGO; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ if (len == 6 && !memcmp(name, "status", 6)) { ++ inode = proc_vid_make_inode(dir->i_sb, 0, PROC_XID_STATUS); ++ if (!inode) ++ goto out; ++ inode->i_fop = &proc_vid_info_file_operations; ++ PROC_I(inode)->op.proc_vid_read = proc_virtual_status; ++ inode->i_mode = S_IFREG|S_IRUGO; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ ++ ret = -ENOENT; ++ xid = atovid(name, len); ++ if (xid < 0) ++ goto out; ++ vxi = lookup_vx_info(xid); ++ if (!vxi) ++ goto out; ++ ++ inode = NULL; ++ if (vx_check(xid, VX_ADMIN|VX_WATCH|VX_IDENT)) ++ inode = proc_vid_make_inode(dir->i_sb, ++ vxi->vx_id, PROC_XID_INO); ++ if (!inode) ++ goto out_release; ++ ++ inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; ++ inode->i_op = &proc_vid_inode_operations; ++ inode->i_fop = &proc_vid_file_operations; ++ inode->i_nlink = 2; ++ inode->i_flags|=S_IMMUTABLE; ++ ++ dentry->d_op = &proc_vid_dentry_operations; ++ d_add(dentry, inode); ++ ret = 0; ++ ++out_release: ++ put_vx_info(vxi); ++out: ++ return ERR_PTR(ret); ++} ++ ++ ++struct dentry *proc_vnet_lookup(struct inode *dir, ++ struct dentry * dentry, struct nameidata *nd) ++{ ++ int nid, len, ret; ++ struct nx_info *nxi; ++ const char *name; ++ struct inode *inode; ++ ++ name = dentry->d_name.name; ++ len = dentry->d_name.len; ++ ret = -ENOMEM; ++#if 0 ++ if (len == 7 && !memcmp(name, "current", 7)) { ++ inode = new_inode(dir->i_sb); ++ if (!inode) ++ goto out; ++ inode->i_mtime = inode->i_atime = ++ inode->i_ctime = CURRENT_TIME; ++ inode->i_ino = fake_ino(1, PROC_NID_INO); ++ inode->i_mode = S_IFLNK|S_IRWXUGO; ++ inode->i_uid = inode->i_gid = 0; ++ d_add(dentry, inode); ++ return NULL; ++ } ++#endif ++ if (len == 4 && !memcmp(name, "info", 4)) { ++ inode = proc_vid_make_inode(dir->i_sb, 0, PROC_NID_INFO); ++ if (!inode) ++ goto out; ++ inode->i_fop = &proc_vid_info_file_operations; ++ PROC_I(inode)->op.proc_vid_read = proc_vnet_info; ++ inode->i_mode = S_IFREG|S_IRUGO; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ ++ ret = -ENOENT; ++ nid = atovid(name, len); ++ if (nid < 0) ++ goto out; ++ nxi = lookup_nx_info(nid); ++ if (!nxi) ++ goto out; ++ ++ inode = NULL; ++ if (1) ++ inode = proc_vid_make_inode(dir->i_sb, ++ nxi->nx_id, PROC_NID_INO); ++ if (!inode) ++ goto out_release; ++ ++ inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; ++ inode->i_op = &proc_vid_inode_operations; ++ inode->i_fop = &proc_vid_file_operations; ++ inode->i_nlink = 2; ++ inode->i_flags|=S_IMMUTABLE; ++ ++ dentry->d_op = &proc_vid_dentry_operations; ++ d_add(dentry, inode); ++ ret = 0; ++ ++out_release: ++ put_nx_info(nxi); ++out: ++ return ERR_PTR(ret); ++} ++ ++ ++ ++ ++#define PROC_NUMBUF 10 ++#define PROC_MAXVIDS 32 ++ ++int proc_virtual_readdir(struct file * filp, ++ void * dirent, filldir_t filldir) ++{ ++ unsigned int xid_array[PROC_MAXVIDS]; ++ char buf[PROC_NUMBUF]; ++ unsigned int nr = filp->f_pos-3; ++ unsigned int nr_xids, i; ++ int visible = vx_check(0, VX_ADMIN|VX_WATCH); ++ ino_t ino; ++ ++ switch ((long)filp->f_pos) { ++ case 0: ++ ino = fake_ino(0, PROC_XID_INO); ++ if (filldir(dirent, ".", 1, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 1: ++ ino = filp->f_dentry->d_parent->d_inode->i_ino; ++ if (filldir(dirent, "..", 2, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 2: ++ if (visible) { ++ ino = fake_ino(0, PROC_XID_INFO); ++ if (filldir(dirent, "info", 4, ++ filp->f_pos, ino, DT_REG) < 0) ++ return 0; ++ } ++ filp->f_pos++; ++ /* fall through */ ++ case 3: ++ ino = fake_ino(0, PROC_XID_STATUS); ++ if (filldir(dirent, "status", 6, ++ filp->f_pos, ino, DT_REG) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ } ++ ++ nr_xids = get_xid_list(nr, xid_array, PROC_MAXVIDS); ++ for (i = 0; i < nr_xids; i++) { ++ int xid = xid_array[i]; ++ ino_t ino = fake_ino(xid, PROC_XID_INO); ++ unsigned int j = PROC_NUMBUF; ++ ++ do buf[--j] = '0' + (xid % 10); while (xid/=10); ++ ++ if (filldir(dirent, buf+j, PROC_NUMBUF-j, ++ filp->f_pos, ino, DT_DIR) < 0) ++ break; ++ filp->f_pos++; ++ } ++ return 0; ++} ++ ++ ++static struct file_operations proc_virtual_dir_operations = { ++ read: generic_read_dir, ++ readdir: proc_virtual_readdir, ++}; ++ ++static struct inode_operations proc_virtual_dir_inode_operations = { ++ lookup: proc_virtual_lookup, ++}; ++ ++ ++int proc_vnet_readdir(struct file * filp, ++ void * dirent, filldir_t filldir) ++{ ++ unsigned int nid_array[PROC_MAXVIDS]; ++ char buf[PROC_NUMBUF]; ++ unsigned int nr = filp->f_pos-2; ++ unsigned int nr_nids, i; ++// int visible = vx_check(0, VX_ADMIN|VX_WATCH); ++ ino_t ino; ++ ++ switch ((long)filp->f_pos) { ++ case 0: ++ ino = fake_ino(0, PROC_NID_INO); ++ if (filldir(dirent, ".", 1, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 1: ++ ino = filp->f_dentry->d_parent->d_inode->i_ino; ++ if (filldir(dirent, "..", 2, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 2: ++ ino = fake_ino(0, PROC_NID_INFO); ++ if (filldir(dirent, "info", 4, ++ filp->f_pos, ino, DT_REG) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ } ++ ++ nr_nids = get_nid_list(nr, nid_array, PROC_MAXVIDS); ++ for (i = 0; i < nr_nids; i++) { ++ int nid = nid_array[i]; ++ ino_t ino = fake_ino(nid, PROC_NID_INO); ++ unsigned long j = PROC_NUMBUF; ++ ++ do buf[--j] = '0' + (nid % 10); while (nid/=10); ++ ++ if (filldir(dirent, buf+j, PROC_NUMBUF-j, ++ filp->f_pos, ino, DT_DIR) < 0) ++ break; ++ filp->f_pos++; ++ } ++ return 0; ++} ++ ++ ++static struct file_operations proc_vnet_dir_operations = { ++ read: generic_read_dir, ++ readdir: proc_vnet_readdir, ++}; ++ ++static struct inode_operations proc_vnet_dir_inode_operations = { ++ lookup: proc_vnet_lookup, ++}; ++ ++ ++ ++void proc_vx_init(void) ++{ ++ struct proc_dir_entry *ent; ++ ++ ent = proc_mkdir("virtual", 0); ++ if (ent) { ++ ent->proc_fops = &proc_virtual_dir_operations; ++ ent->proc_iops = &proc_virtual_dir_inode_operations; ++ } ++ proc_virtual = ent; ++ ++ ent = proc_mkdir("virtnet", 0); ++ if (ent) { ++ ent->proc_fops = &proc_vnet_dir_operations; ++ ent->proc_iops = &proc_vnet_dir_inode_operations; ++ } ++ proc_vnet = ent; ++} ++ ++ ++ ++ ++/* per pid info */ ++ ++ ++int proc_pid_vx_info(struct task_struct *p, char *buffer) ++{ ++ struct vx_info *vxi; ++ char * orig = buffer; ++ ++ buffer += sprintf (buffer,"XID:\t%d\n", vx_task_xid(p)); ++ if (vx_flags(VXF_INFO_HIDE, 0)) ++ goto out; ++ ++ vxi = task_get_vx_info(p); ++ if (!vxi) ++ goto out; ++ ++ buffer += sprintf (buffer,"BCaps:\t%016llx\n" ++ ,(unsigned long long)vxi->vx_bcaps); ++ buffer += sprintf (buffer,"CCaps:\t%016llx\n" ++ ,(unsigned long long)vxi->vx_ccaps); ++ buffer += sprintf (buffer,"CFlags:\t%016llx\n" ++ ,(unsigned long long)vxi->vx_flags); ++ buffer += sprintf (buffer,"CIPid:\t%d\n" ++ ,vxi->vx_initpid); ++ ++ put_vx_info(vxi); ++out: ++ return buffer - orig; ++} ++ ++ ++int proc_pid_nx_info(struct task_struct *p, char *buffer) ++{ ++ struct nx_info *nxi; ++ char * orig = buffer; ++ int i; ++ ++ buffer += sprintf (buffer,"NID:\t%d\n", nx_task_nid(p)); ++ if (vx_flags(VXF_INFO_HIDE, 0)) ++ goto out; ++ nxi = task_get_nx_info(p); ++ if (!nxi) ++ goto out; ++ ++ for (i=0; i<nxi->nbipv4; i++){ ++ buffer += sprintf (buffer, ++ "V4Root[%d]:\t%d.%d.%d.%d/%d.%d.%d.%d\n", i ++ ,NIPQUAD(nxi->ipv4[i]) ++ ,NIPQUAD(nxi->mask[i])); ++ } ++ buffer += sprintf (buffer, ++ "V4Root[bcast]:\t%d.%d.%d.%d\n" ++ ,NIPQUAD(nxi->v4_bcast)); ++ ++ put_nx_info(nxi); ++out: ++ return buffer - orig; ++} ++ +Index: linux-2.6.16/kernel/vserver/sched.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/sched.c +@@ -0,0 +1,321 @@ ++/* ++ * linux/kernel/vserver/sched.c ++ * ++ * Virtual Server: Scheduler Support ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 adapted Sam Vilains version to 2.6.3 ++ * V0.02 removed legacy interface ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_sched.h> ++#include <linux/vserver/sched_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++#define vxd_check_range(val, min, max) ++ ++ ++void vx_update_sched_param(struct _vx_sched *sched, ++ struct _vx_sched_pc *sched_pc) ++{ ++ unsigned int set_mask = sched->update_mask; ++ ++ if (set_mask & VXSM_FILL_RATE) ++ sched_pc->fill_rate[0] = sched->fill_rate[0]; ++ if (set_mask & VXSM_INTERVAL) ++ sched_pc->interval[0] = sched->interval[0]; ++ if (set_mask & VXSM_FILL_RATE2) ++ sched_pc->fill_rate[1] = sched->fill_rate[1]; ++ if (set_mask & VXSM_INTERVAL2) ++ sched_pc->interval[1] = sched->interval[1]; ++ if (set_mask & VXSM_TOKENS) ++ sched_pc->tokens = sched->tokens; ++ if (set_mask & VXSM_TOKENS_MIN) ++ sched_pc->tokens_min = sched->tokens_min; ++ if (set_mask & VXSM_TOKENS_MAX) ++ sched_pc->tokens_max = sched->tokens_max; ++ ++ if (set_mask & VXSM_IDLE_TIME) ++ sched_pc->flags |= VXSF_IDLE_TIME; ++ else ++ sched_pc->flags &= ~VXSF_IDLE_TIME; ++ ++ /* reset time */ ++ sched_pc->norm_time = jiffies; ++} ++ ++ ++/* ++ * recalculate the context's scheduling tokens ++ * ++ * ret > 0 : number of tokens available ++ * ret < 0 : on hold, check delta_min[] ++ * -1 only jiffies ++ * -2 also idle time ++ * ++ */ ++int vx_tokens_recalc(struct _vx_sched_pc *sched_pc, ++ unsigned long *norm_time, unsigned long *idle_time, int delta_min[2]) ++{ ++ long delta; ++ long tokens = 0; ++ int flags = sched_pc->flags; ++ ++ /* how much time did pass? */ ++ delta = *norm_time - sched_pc->norm_time; ++ vxd_check_range(delta, 0, INT_MAX); ++ ++ if (delta >= sched_pc->interval[0]) { ++ long tokens, integral; ++ ++ /* calc integral token part */ ++ tokens = delta / sched_pc->interval[0]; ++ integral = tokens * sched_pc->interval[0]; ++ tokens *= sched_pc->fill_rate[0]; ++#ifdef CONFIG_VSERVER_HARDCPU ++ delta_min[0] = delta - integral; ++ vxd_check_range(delta_min[0], 0, sched_pc->interval[0]); ++#endif ++ /* advance time */ ++ sched_pc->norm_time += delta; ++ ++ /* add tokens */ ++ sched_pc->tokens += tokens; ++ sched_pc->token_time += tokens; ++ } ++ else ++ delta_min[0] = delta; ++ ++#ifdef CONFIG_VSERVER_IDLETIME ++ if (!(flags & VXSF_IDLE_TIME)) ++ goto skip_idle; ++ ++ /* how much was the idle skip? */ ++ delta = *idle_time - sched_pc->idle_time; ++ vxd_check_range(delta, 0, INT_MAX); ++ ++ if (delta >= sched_pc->interval[1]) { ++ long tokens, integral; ++ ++ /* calc fair share token part */ ++ tokens = delta / sched_pc->interval[1]; ++ integral = tokens * sched_pc->interval[1]; ++ tokens *= sched_pc->fill_rate[1]; ++ delta_min[1] = delta - integral; ++ vxd_check_range(delta_min[1], 0, sched_pc->interval[1]); ++ ++ /* advance idle time */ ++ sched_pc->idle_time += integral; ++ ++ /* add tokens */ ++ sched_pc->tokens += tokens; ++ sched_pc->token_time += tokens; ++ } ++ else ++ delta_min[1] = delta; ++skip_idle: ++#endif ++ ++ /* clip at maximum */ ++ if (sched_pc->tokens > sched_pc->tokens_max) ++ sched_pc->tokens = sched_pc->tokens_max; ++ tokens = sched_pc->tokens; ++ ++ if ((flags & VXSF_ONHOLD)) { ++ /* can we unhold? */ ++ if (tokens >= sched_pc->tokens_min) { ++ flags &= ~VXSF_ONHOLD; ++ sched_pc->hold_ticks += ++ *norm_time - sched_pc->onhold; ++ } ++ else ++ goto on_hold; ++ } else { ++ /* put on hold? */ ++ if (tokens <= 0) { ++ flags |= VXSF_ONHOLD; ++ sched_pc->onhold = *norm_time; ++ goto on_hold; ++ } ++ } ++ sched_pc->flags = flags; ++ return tokens; ++ ++on_hold: ++ tokens = sched_pc->tokens_min - tokens; ++ sched_pc->flags = flags; ++ BUG_ON(tokens < 0); ++ ++#ifdef CONFIG_VSERVER_HARDCPU ++ if (likely(tokens)) ++ delta_min[0] = sched_pc->interval[0] * ++ tokens / sched_pc->fill_rate[0] - ++ delta_min[0]; ++ else ++ delta_min[0] = sched_pc->interval[0] - ++ delta_min[0]; ++ vxd_check_range(delta_min[0], 0, INT_MAX); ++ ++#ifdef CONFIG_VSERVER_IDLETIME ++ if (!(flags & VXSF_IDLE_TIME)) ++ return -1; ++ ++ if (likely(tokens)) ++ delta_min[1] = sched_pc->interval[1] * ++ tokens / sched_pc->fill_rate[1] - ++ delta_min[1]; ++ else ++ delta_min[1] = sched_pc->interval[1] - ++ delta_min[1]; ++ vxd_check_range(delta_min[0], 0, INT_MAX); ++ ++ return -2; ++#else ++ return -1; ++#endif /* CONFIG_VSERVER_IDLETIME */ ++#else ++ return 0; ++#endif /* CONFIG_VSERVER_HARDCPU */ ++} ++ ++ ++int do_set_sched(struct vx_info *vxi, struct vcmd_set_sched_v4 *data) ++{ ++ unsigned int set_mask = data->set_mask; ++ ++ /* Sanity check data values */ ++ if (data->fill_rate < 0) ++ data->fill_rate = 1; ++ if (data->interval <= 0) ++ data->interval = HZ; ++ if (data->tokens_max <= 0) ++ data->tokens_max = HZ; ++ if (data->tokens_min < 0) ++ data->tokens_min = data->fill_rate*3; ++ if (data->tokens_min >= data->tokens_max) ++ data->tokens_min = data->tokens_max; ++ ++ if (data->prio_bias > MAX_PRIO_BIAS) ++ data->prio_bias = MAX_PRIO_BIAS; ++ if (data->prio_bias < MIN_PRIO_BIAS) ++ data->prio_bias = MIN_PRIO_BIAS; ++ ++ spin_lock(&vxi->sched.tokens_lock); ++ ++ if (set_mask & VXSM_FILL_RATE) ++ vxi->sched.fill_rate[0] = data->fill_rate; ++ if (set_mask & VXSM_INTERVAL) ++ vxi->sched.interval[0] = data->interval; ++ if (set_mask & VXSM_FILL_RATE2) ++ vxi->sched.fill_rate[1] = data->fill_rate; ++ if (set_mask & VXSM_INTERVAL2) ++ vxi->sched.interval[1] = data->interval; ++ if (set_mask & VXSM_TOKENS) ++ vxi->sched.tokens = data->tokens; ++ if (set_mask & VXSM_TOKENS_MIN) ++ vxi->sched.tokens_min = data->tokens_min; ++ if (set_mask & VXSM_TOKENS_MAX) ++ vxi->sched.tokens_max = data->tokens_max; ++ if (set_mask & VXSM_PRIO_BIAS) ++ vxi->sched.prio_bias = data->prio_bias; ++ ++#ifdef CONFIG_SMP ++ vxi->sched.update_mask = set_mask; ++ rmb(); ++ if (set_mask & VXSM_CPU_ID) ++ vxi->sched.update = cpumask_of_cpu(data->cpu_id); ++ else ++ vxi->sched.update = CPU_MASK_ALL; ++#else ++ /* on UP we update immediately */ ++ vx_update_sched_param(&vxi->sched, ++ &vx_per_cpu(vxi, sched_pc, 0)); ++#endif ++ ++ spin_unlock(&vxi->sched.tokens_lock); ++ return 0; ++} ++ ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++#define COPY_MASK_V2(name, mask) \ ++ if (vc_data.name != SCHED_KEEP) { \ ++ vc_data_v4.name = vc_data.name; \ ++ vc_data_v4.set_mask |= mask; \ ++ } ++ ++int vc_set_sched_v2(uint32_t xid, void __user *data) ++{ ++ struct vcmd_set_sched_v2 vc_data; ++ struct vcmd_set_sched_v4 vc_data_v4 = { .set_mask = 0 }; ++ struct vx_info *vxi; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(xid); ++ if (!vxi) ++ return -ESRCH; ++ ++ COPY_MASK_V2(fill_rate, VXSM_FILL_RATE); ++ COPY_MASK_V2(interval, VXSM_INTERVAL); ++ COPY_MASK_V2(tokens, VXSM_TOKENS); ++ COPY_MASK_V2(tokens_min, VXSM_TOKENS_MIN); ++ COPY_MASK_V2(tokens_max, VXSM_TOKENS_MAX); ++ vc_data_v4.bucket_id = 0; ++ ++ do_set_sched(vxi, &vc_data_v4); ++ put_vx_info(vxi); ++ return 0; ++} ++#endif ++ ++int vc_set_sched_v3(uint32_t xid, void __user *data) ++{ ++ struct vcmd_set_sched_v3 vc_data; ++ struct vcmd_set_sched_v4 vc_data_v4; ++ struct vx_info *vxi; ++ int ret; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(xid); ++ if (!vxi) ++ return -ESRCH; ++ ++ /* structures are binary compatible */ ++ memcpy(&vc_data_v4, &vc_data, sizeof(vc_data)); ++ vc_data_v4.set_mask &= VXSM_V3_MASK; ++ vc_data_v4.bucket_id = 0; ++ ret = do_set_sched(vxi, &vc_data_v4); ++ put_vx_info(vxi); ++ return ret; ++} ++ ++int vc_set_sched(uint32_t xid, void __user *data) ++{ ++ struct vcmd_set_sched_v4 vc_data; ++ struct vx_info *vxi; ++ int ret; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(xid); ++ if (!vxi) ++ return -ESRCH; ++ ++ ret = do_set_sched(vxi, &vc_data); ++ put_vx_info(vxi); ++ return ret; ++} ++ +Index: linux-2.6.16/kernel/vserver/sched_init.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/sched_init.h +@@ -0,0 +1,47 @@ ++ ++static inline void vx_info_init_sched(struct _vx_sched *sched) ++{ ++ /* scheduling; hard code starting values as constants */ ++ sched->fill_rate[0] = 1; ++ sched->interval[0] = 4; ++ sched->fill_rate[1] = 1; ++ sched->interval[1] = 8; ++ sched->tokens = HZ >> 2; ++ sched->tokens_min = HZ >> 4; ++ sched->tokens_max = HZ >> 1; ++ sched->tokens_lock = SPIN_LOCK_UNLOCKED; ++ sched->prio_bias = 0; ++ sched->vavavoom = 0; ++} ++ ++static inline ++void vx_info_init_sched_pc(struct _vx_sched_pc *sched_pc, int cpu) ++{ ++ sched_pc->fill_rate[0] = 1; ++ sched_pc->interval[0] = 4; ++ sched_pc->fill_rate[1] = 1; ++ sched_pc->interval[1] = 8; ++ sched_pc->tokens = HZ >> 2; ++ sched_pc->tokens_min = HZ >> 4; ++ sched_pc->tokens_max = HZ >> 1; ++ sched_pc->token_time = 0; ++ sched_pc->idle_time = 0; ++ sched_pc->norm_time = jiffies; ++ ++ sched_pc->user_ticks = 0; ++ sched_pc->sys_ticks = 0; ++ sched_pc->hold_ticks = 0; ++} ++ ++ ++static inline void vx_info_exit_sched(struct _vx_sched *sched) ++{ ++ return; ++} ++ ++static inline ++void vx_info_exit_sched_pc(struct _vx_sched_pc *sched_pc, int cpu) ++{ ++ return; ++} ++ +Index: linux-2.6.16/kernel/vserver/sched_proc.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/sched_proc.h +@@ -0,0 +1,59 @@ ++#ifndef _VX_SCHED_PROC_H ++#define _VX_SCHED_PROC_H ++ ++ ++static inline ++int vx_info_proc_sched(struct _vx_sched *sched, char *buffer) ++{ ++ int length = 0; ++ ++ length += sprintf(buffer, ++ "FillRate:\t%8d,%d\n" ++ "Interval:\t%8d,%d\n" ++ "TokensMin:\t%8d\n" ++ "TokensMax:\t%8d\n" ++ "PrioBias:\t%8d\n" ++ "VaVaVoom:\t%8d\n" ++ ,sched->fill_rate[0] ++ ,sched->fill_rate[1] ++ ,sched->interval[0] ++ ,sched->interval[1] ++ ,sched->tokens_min ++ ,sched->tokens_max ++ ,sched->prio_bias ++ ,sched->vavavoom ++ ); ++ return length; ++} ++ ++static inline ++int vx_info_proc_sched_pc(struct _vx_sched_pc *sched_pc, ++ char *buffer, int cpu) ++{ ++ int length = 0; ++ ++ length += sprintf(buffer + length, ++ "cpu %d: %lld %lld %lld %ld %ld" ++ ,cpu ++ ,(unsigned long long)sched_pc->user_ticks ++ ,(unsigned long long)sched_pc->sys_ticks ++ ,(unsigned long long)sched_pc->hold_ticks ++ ,sched_pc->token_time ++ ,sched_pc->idle_time ++ ); ++ length += sprintf(buffer + length, ++ " %c%c %d %d %d %d/%d %d/%d\n" ++ ,(sched_pc->flags & VXSF_ONHOLD) ? 'H' : 'R' ++ ,(sched_pc->flags & VXSF_IDLE_TIME) ? 'I' : '-' ++ ,sched_pc->tokens ++ ,sched_pc->tokens_min ++ ,sched_pc->tokens_max ++ ,sched_pc->fill_rate[0] ++ ,sched_pc->interval[0] ++ ,sched_pc->fill_rate[1] ++ ,sched_pc->interval[1] ++ ); ++ return length; ++} ++ ++#endif /* _VX_SCHED_PROC_H */ +Index: linux-2.6.16/kernel/vserver/signal.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/signal.c +@@ -0,0 +1,132 @@ ++/* ++ * linux/kernel/vserver/signal.c ++ * ++ * Virtual Server: Signal Support ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext V0.05 ++ * ++ */ ++ ++#include <linux/sched.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++#include <linux/vs_context.h> ++#include <linux/vserver/signal_cmd.h> ++ ++ ++int vx_info_kill(struct vx_info *vxi, int pid, int sig) ++{ ++ int retval, count=0; ++ struct task_struct *p; ++ unsigned long priv = 0; ++ ++ retval = -ESRCH; ++ vxdprintk(VXD_CBIT(misc, 4), ++ "vx_info_kill(%p[#%d],%d,%d)*", ++ vxi, vxi->vx_id, pid, sig); ++ read_lock(&tasklist_lock); ++ switch (pid) { ++ case 0: ++ priv = 1; ++ case -1: ++ for_each_process(p) { ++ int err = 0; ++ ++ if (vx_task_xid(p) != vxi->vx_id || p->pid <= 1 || ++ (pid && vxi->vx_initpid == p->pid)) ++ continue; ++ ++ err = group_send_sig_info(sig, (void*)priv, p); ++ ++count; ++ if (err != -EPERM) ++ retval = err; ++ } ++ break; ++ ++ case 1: ++ if (vxi->vx_initpid) { ++ pid = vxi->vx_initpid; ++ priv = 1; ++ } ++ /* fallthrough */ ++ default: ++ p = find_task_by_real_pid(pid); ++ if (p) { ++ if (vx_task_xid(p) == vxi->vx_id) ++ retval = group_send_sig_info(sig, ++ (void*)priv, p); ++ } ++ break; ++ } ++ read_unlock(&tasklist_lock); ++ vxdprintk(VXD_CBIT(misc, 4), ++ "vx_info_kill(%p[#%d],%d,%d) = %d", ++ vxi, vxi->vx_id, pid, sig, retval); ++ return retval; ++} ++ ++int vc_ctx_kill(uint32_t id, void __user *data) ++{ ++ int retval; ++ struct vcmd_ctx_kill_v0 vc_data; ++ struct vx_info *vxi; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ retval = vx_info_kill(vxi, vc_data.pid, vc_data.sig); ++ put_vx_info(vxi); ++ return retval; ++} ++ ++ ++static int __wait_exit(struct vx_info *vxi) ++{ ++ DECLARE_WAITQUEUE(wait, current); ++ int ret = 0; ++ ++ add_wait_queue(&vxi->vx_wait, &wait); ++ set_current_state(TASK_INTERRUPTIBLE); ++ ++wait: ++ if (vx_info_state(vxi, VXS_SHUTDOWN|VXS_HASHED) == VXS_SHUTDOWN) ++ goto out; ++ if (signal_pending(current)) { ++ ret = -ERESTARTSYS; ++ goto out; ++ } ++ schedule(); ++ goto wait; ++ ++out: ++ set_current_state(TASK_RUNNING); ++ remove_wait_queue(&vxi->vx_wait, &wait); ++ return ret; ++} ++ ++ ++ ++int vc_wait_exit(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ int ret; ++ ++ vxi = lookup_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ ret = __wait_exit(vxi); ++ put_vx_info(vxi); ++ return ret; ++} ++ +Index: linux-2.6.16/kernel/vserver/switch.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/switch.c +@@ -0,0 +1,268 @@ ++/* ++ * linux/kernel/vserver/switch.c ++ * ++ * Virtual Server: Syscall Switch ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 syscall switch ++ * V0.02 added signal to context ++ * V0.03 added rlimit functions ++ * V0.04 added iattr, task/xid functions ++ * V0.05 added debug/history stuff ++ * V0.06 added compat32 layer ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/linkage.h> ++#include <linux/sched.h> ++#include <linux/compat.h> ++#include <asm/errno.h> ++ ++#include <linux/vserver/network.h> ++#include <linux/vserver/switch.h> ++#include <linux/vserver/debug.h> ++ ++ ++static inline ++int vc_get_version(uint32_t id) ++{ ++#ifdef CONFIG_VSERVER_LEGACY_VERSION ++ if (id == 63) ++ return VCI_LEGACY_VERSION; ++#endif ++ return VCI_VERSION; ++} ++ ++#include <linux/vserver/context_cmd.h> ++#include <linux/vserver/cvirt_cmd.h> ++#include <linux/vserver/limit_cmd.h> ++#include <linux/vserver/network_cmd.h> ++#include <linux/vserver/sched_cmd.h> ++#include <linux/vserver/debug_cmd.h> ++#include <linux/vserver/inode_cmd.h> ++#include <linux/vserver/dlimit_cmd.h> ++#include <linux/vserver/signal_cmd.h> ++#include <linux/vserver/namespace_cmd.h> ++ ++#include <linux/vserver/legacy.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/dlimit.h> ++ ++ ++#ifdef CONFIG_COMPAT ++#define __COMPAT(name, id, data, compat) \ ++ (compat) ? name ## _x32 (id, data) : name (id, data) ++#else ++#define __COMPAT(name, id, data, compat) \ ++ name (id, data) ++#endif ++ ++ ++static inline ++long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat) ++{ ++ vxdprintk(VXD_CBIT(switch, 0), ++ "vc: VCMD_%02d_%d[%d], %d,%p,%d", ++ VC_CATEGORY(cmd), VC_COMMAND(cmd), ++ VC_VERSION(cmd), id, data, compat); ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ if (!capable(CAP_CONTEXT) && ++ /* dirty hack for capremove */ ++ !(cmd==VCMD_new_s_context && id==-2)) ++ return -EPERM; ++#else ++ if (!capable(CAP_CONTEXT)) ++ return -EPERM; ++#endif ++ ++ switch (cmd) { ++ case VCMD_get_version: ++ return vc_get_version(id); ++ ++ case VCMD_dump_history: ++#ifdef CONFIG_VSERVER_HISTORY ++ return vc_dump_history(id); ++#else ++ return -ENOSYS; ++#endif ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ case VCMD_new_s_context: ++ return vc_new_s_context(id, data); ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ case VCMD_set_ipv4root: ++ return vc_set_ipv4root(id, data); ++#endif ++ ++ case VCMD_task_xid: ++ return vc_task_xid(id, data); ++ case VCMD_vx_info: ++ return vc_vx_info(id, data); ++ ++ case VCMD_task_nid: ++ return vc_task_nid(id, data); ++ case VCMD_nx_info: ++ return vc_nx_info(id, data); ++ ++ case VCMD_set_namespace_v0: ++ return vc_set_namespace(-1, data); ++ case VCMD_set_namespace: ++ return vc_set_namespace(id, data); ++ case VCMD_cleanup_namespace: ++ return vc_cleanup_namespace(id, data); ++ } ++ ++ /* those are allowed while in setup too */ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH) && ++ !vx_flags(VXF_STATE_SETUP,0)) ++ return -EPERM; ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ switch (cmd) { ++ case VCMD_set_cflags: ++ case VCMD_set_ccaps: ++ if (vx_check(0, VX_WATCH)) ++ return 0; ++ } ++#endif ++ ++ switch (cmd) { ++ case VCMD_get_rlimit: ++ return vc_get_rlimit(id, data); ++ case VCMD_set_rlimit: ++ return vc_set_rlimit(id, data); ++ case VCMD_get_rlimit_mask: ++ return vc_get_rlimit_mask(id, data); ++ ++ case VCMD_get_vhi_name: ++ return vc_get_vhi_name(id, data); ++ case VCMD_set_vhi_name: ++ return vc_set_vhi_name(id, data); ++ ++ case VCMD_set_cflags: ++ return vc_set_cflags(id, data); ++ case VCMD_get_cflags: ++ return vc_get_cflags(id, data); ++ ++ case VCMD_set_ccaps: ++ return vc_set_ccaps(id, data); ++ case VCMD_get_ccaps: ++ return vc_get_ccaps(id, data); ++ ++ case VCMD_set_nflags: ++ return vc_set_nflags(id, data); ++ case VCMD_get_nflags: ++ return vc_get_nflags(id, data); ++ ++ case VCMD_set_ncaps: ++ return vc_set_ncaps(id, data); ++ case VCMD_get_ncaps: ++ return vc_get_ncaps(id, data); ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ case VCMD_set_sched_v2: ++ return vc_set_sched_v2(id, data); ++#endif ++ case VCMD_set_sched_v3: ++ return vc_set_sched_v3(id, data); ++ /* this is version 4 */ ++ case VCMD_set_sched: ++ return vc_set_sched(id, data); ++ ++ case VCMD_add_dlimit: ++ return __COMPAT(vc_add_dlimit, id, data, compat); ++ case VCMD_rem_dlimit: ++ return __COMPAT(vc_rem_dlimit, id, data, compat); ++ case VCMD_set_dlimit: ++ return __COMPAT(vc_set_dlimit, id, data, compat); ++ case VCMD_get_dlimit: ++ return __COMPAT(vc_get_dlimit, id, data, compat); ++ } ++ ++ /* below here only with VX_ADMIN */ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -EPERM; ++ ++ switch (cmd) { ++ case VCMD_ctx_kill: ++ return vc_ctx_kill(id, data); ++ ++ case VCMD_wait_exit: ++ return vc_wait_exit(id, data); ++ ++ case VCMD_create_context: ++#ifdef CONFIG_VSERVER_LEGACY ++ return vc_ctx_create(id, NULL); ++#else ++ return -ENOSYS; ++#endif ++ ++ case VCMD_get_iattr: ++ return __COMPAT(vc_get_iattr, id, data, compat); ++ case VCMD_set_iattr: ++ return __COMPAT(vc_set_iattr, id, data, compat); ++ ++ case VCMD_enter_namespace: ++ return vc_enter_namespace(id, data); ++ ++ case VCMD_ctx_create_v0: ++#ifdef CONFIG_VSERVER_LEGACY ++ if (id == 1) { ++ current->xid = 1; ++ return 1; ++ } ++#endif ++ return vc_ctx_create(id, NULL); ++ case VCMD_ctx_create: ++ return vc_ctx_create(id, data); ++ case VCMD_ctx_migrate_v0: ++ return vc_ctx_migrate(id, NULL); ++ case VCMD_ctx_migrate: ++ return vc_ctx_migrate(id, data); ++ ++ case VCMD_net_create_v0: ++ return vc_net_create(id, NULL); ++ case VCMD_net_create: ++ return vc_net_create(id, data); ++ case VCMD_net_migrate: ++ return vc_net_migrate(id, data); ++ case VCMD_net_add: ++ return vc_net_add(id, data); ++ case VCMD_net_remove: ++ return vc_net_remove(id, data); ++ ++ } ++ return -ENOSYS; ++} ++ ++extern asmlinkage long ++sys_vserver(uint32_t cmd, uint32_t id, void __user *data) ++{ ++ long ret = do_vserver(cmd, id, data, 0); ++ ++ vxdprintk(VXD_CBIT(switch, 1), ++ "vc: VCMD_%02d_%d[%d] = %08lx(%ld)", ++ VC_CATEGORY(cmd), VC_COMMAND(cmd), ++ VC_VERSION(cmd), ret, ret); ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++extern asmlinkage long ++sys32_vserver(uint32_t cmd, uint32_t id, void __user *data) ++{ ++ long ret = do_vserver(cmd, id, data, 1); ++ ++ vxdprintk(VXD_CBIT(switch, 1), ++ "vc: VCMD_%02d_%d[%d] = %08lx(%ld)", ++ VC_CATEGORY(cmd), VC_COMMAND(cmd), ++ VC_VERSION(cmd), ret, ret); ++ return ret; ++} ++ ++#endif /* CONFIG_COMPAT */ +Index: linux-2.6.16/kernel/vserver/sysctl.c +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/sysctl.c +@@ -0,0 +1,241 @@ ++/* ++ * kernel/vserver/sysctl.c ++ * ++ * Virtual Context Support ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * ++ */ ++ ++#include <linux/errno.h> ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/ctype.h> ++#include <linux/sysctl.h> ++#include <linux/parser.h> ++#include <linux/fs.h> ++ ++#include <asm/uaccess.h> ++#include <asm/unistd.h> ++ ++ ++#define CTL_VSERVER 4242 /* unused? */ ++ ++enum { ++ CTL_DEBUG_ERROR = 0, ++ CTL_DEBUG_SWITCH = 1, ++ CTL_DEBUG_XID, ++ CTL_DEBUG_NID, ++ CTL_DEBUG_TAG, ++ CTL_DEBUG_NET, ++ CTL_DEBUG_LIMIT, ++ CTL_DEBUG_CRES, ++ CTL_DEBUG_DLIM, ++ CTL_DEBUG_QUOTA, ++ CTL_DEBUG_CVIRT, ++ CTL_DEBUG_MISC, ++}; ++ ++ ++unsigned int vx_debug_switch = 0; ++unsigned int vx_debug_xid = 0; ++unsigned int vx_debug_nid = 0; ++unsigned int vx_debug_tag = 0; ++unsigned int vx_debug_net = 0; ++unsigned int vx_debug_limit = 0; ++unsigned int vx_debug_cres = 0; ++unsigned int vx_debug_dlim = 0; ++unsigned int vx_debug_quota = 0; ++unsigned int vx_debug_cvirt = 0; ++unsigned int vx_debug_misc = 0; ++ ++ ++static struct ctl_table_header *vserver_table_header; ++static ctl_table vserver_table[]; ++ ++ ++void vserver_register_sysctl(void) ++{ ++ if (!vserver_table_header) { ++ vserver_table_header = register_sysctl_table(vserver_table, 1); ++ } ++ ++} ++ ++void vserver_unregister_sysctl(void) ++{ ++ if (vserver_table_header) { ++ unregister_sysctl_table(vserver_table_header); ++ vserver_table_header = NULL; ++ } ++} ++ ++ ++static int proc_dodebug(ctl_table *table, int write, ++ struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos) ++{ ++ char tmpbuf[20], *p, c; ++ unsigned int value; ++ size_t left, len; ++ ++ if ((*ppos && !write) || !*lenp) { ++ *lenp = 0; ++ return 0; ++ } ++ ++ left = *lenp; ++ ++ if (write) { ++ if (!access_ok(VERIFY_READ, buffer, left)) ++ return -EFAULT; ++ p = (char *) buffer; ++ while (left && __get_user(c, p) >= 0 && isspace(c)) ++ left--, p++; ++ if (!left) ++ goto done; ++ ++ if (left > sizeof(tmpbuf) - 1) ++ return -EINVAL; ++ if (copy_from_user(tmpbuf, p, left)) ++ return -EFAULT; ++ tmpbuf[left] = '\0'; ++ ++ for (p = tmpbuf, value = 0; '0' <= *p && *p <= '9'; p++, left--) ++ value = 10 * value + (*p - '0'); ++ if (*p && !isspace(*p)) ++ return -EINVAL; ++ while (left && isspace(*p)) ++ left--, p++; ++ *(unsigned int *) table->data = value; ++ } else { ++ if (!access_ok(VERIFY_WRITE, buffer, left)) ++ return -EFAULT; ++ len = sprintf(tmpbuf, "%d", *(unsigned int *) table->data); ++ if (len > left) ++ len = left; ++ if (__copy_to_user(buffer, tmpbuf, len)) ++ return -EFAULT; ++ if ((left -= len) > 0) { ++ if (put_user('\n', (char *)buffer + len)) ++ return -EFAULT; ++ left--; ++ } ++ } ++ ++done: ++ *lenp -= left; ++ *ppos += *lenp; ++ return 0; ++} ++ ++ ++#define CTL_ENTRY(ctl, name) \ ++ { \ ++ .ctl_name = ctl, \ ++ .procname = #name, \ ++ .data = &vx_##name, \ ++ .maxlen = sizeof(int), \ ++ .mode = 0644, \ ++ .proc_handler = &proc_dodebug \ ++ } ++ ++static ctl_table debug_table[] = { ++ CTL_ENTRY (CTL_DEBUG_SWITCH, debug_switch), ++ CTL_ENTRY (CTL_DEBUG_XID, debug_xid), ++ CTL_ENTRY (CTL_DEBUG_NID, debug_nid), ++ CTL_ENTRY (CTL_DEBUG_TAG, debug_tag), ++ CTL_ENTRY (CTL_DEBUG_NET, debug_net), ++ CTL_ENTRY (CTL_DEBUG_LIMIT, debug_limit), ++ CTL_ENTRY (CTL_DEBUG_CRES, debug_cres), ++ CTL_ENTRY (CTL_DEBUG_DLIM, debug_dlim), ++ CTL_ENTRY (CTL_DEBUG_QUOTA, debug_quota), ++ CTL_ENTRY (CTL_DEBUG_CVIRT, debug_cvirt), ++ CTL_ENTRY (CTL_DEBUG_MISC, debug_misc), ++ { .ctl_name = 0 } ++}; ++ ++static ctl_table vserver_table[] = { ++ { ++ .ctl_name = CTL_VSERVER, ++ .procname = "vserver", ++ .mode = 0555, ++ .child = debug_table ++ }, ++ { .ctl_name = 0 } ++}; ++ ++ ++static match_table_t tokens = { ++ { CTL_DEBUG_SWITCH, "switch=%x" }, ++ { CTL_DEBUG_XID, "xid=%x" }, ++ { CTL_DEBUG_NID, "nid=%x" }, ++ { CTL_DEBUG_TAG, "tag=%x" }, ++ { CTL_DEBUG_NET, "net=%x" }, ++ { CTL_DEBUG_LIMIT, "limit=%x" }, ++ { CTL_DEBUG_CRES, "cres=%x" }, ++ { CTL_DEBUG_DLIM, "dlim=%x" }, ++ { CTL_DEBUG_QUOTA, "quota=%x" }, ++ { CTL_DEBUG_CVIRT, "cvirt=%x" }, ++ { CTL_DEBUG_MISC, "misc=%x" }, ++ { CTL_DEBUG_ERROR, NULL } ++}; ++ ++#define HANDLE_CASE(id, name, val) \ ++ case CTL_DEBUG_ ## id: \ ++ vx_debug_ ## name = val; \ ++ printk("vs_debug_" #name "=0x%x\n", val); \ ++ break ++ ++ ++static int __init vs_debug_setup(char *str) ++{ ++ char *p; ++ int token; ++ ++ printk("vs_debug_setup(%s)\n", str); ++ while ((p = strsep(&str, ",")) != NULL) { ++ substring_t args[MAX_OPT_ARGS]; ++ unsigned int value; ++ ++ if (!*p) ++ continue; ++ ++ token = match_token(p, tokens, args); ++ value = (token>0)?simple_strtoul(args[0].from, NULL, 0):0; ++ ++ switch (token) { ++ HANDLE_CASE(SWITCH, switch, value); ++ HANDLE_CASE(XID, xid, value); ++ HANDLE_CASE(NID, nid, value); ++ HANDLE_CASE(NET, net, value); ++ HANDLE_CASE(LIMIT, limit, value); ++ HANDLE_CASE(CRES, cres, value); ++ HANDLE_CASE(DLIM, dlim, value); ++ HANDLE_CASE(QUOTA, quota, value); ++ HANDLE_CASE(CVIRT, cvirt, value); ++ HANDLE_CASE(MISC, misc, value); ++ default: ++ return -EINVAL; ++ break; ++ } ++ } ++ return 1; ++} ++ ++__setup("vsdebug=", vs_debug_setup); ++ ++ ++ ++EXPORT_SYMBOL_GPL(vx_debug_switch); ++EXPORT_SYMBOL_GPL(vx_debug_xid); ++EXPORT_SYMBOL_GPL(vx_debug_nid); ++EXPORT_SYMBOL_GPL(vx_debug_net); ++EXPORT_SYMBOL_GPL(vx_debug_limit); ++EXPORT_SYMBOL_GPL(vx_debug_cres); ++EXPORT_SYMBOL_GPL(vx_debug_dlim); ++EXPORT_SYMBOL_GPL(vx_debug_quota); ++EXPORT_SYMBOL_GPL(vx_debug_cvirt); ++EXPORT_SYMBOL_GPL(vx_debug_misc); ++ +Index: linux-2.6.16/kernel/vserver/vci_config.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/kernel/vserver/vci_config.h +@@ -0,0 +1,81 @@ ++ ++#include <linux/config.h> ++ ++ ++enum { ++ VCI_KCBIT_LEGACY = 1, ++ VCI_KCBIT_LEGACYNET, ++ VCI_KCBIT_NGNET, ++ ++ VCI_KCBIT_PROC_SECURE, ++ VCI_KCBIT_HARDCPU, ++ VCI_KCBIT_IDLELIMIT, ++ VCI_KCBIT_IDLETIME, ++ ++ VCI_KCBIT_COWBL, ++ ++ VCI_KCBIT_LEGACY_VERSION = 15, ++ VCI_KCBIT_DEBUG = 16, ++ VCI_KCBIT_HISTORY = 20, ++ VCI_KCBIT_TAGGED = 24, ++}; ++ ++ ++static inline uint32_t vci_kernel_config(void) ++{ ++ return ++ /* various legacy options */ ++#ifdef CONFIG_VSERVER_LEGACY ++ (1 << VCI_KCBIT_LEGACY) | ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ (1 << VCI_KCBIT_LEGACYNET) | ++#endif ++#ifdef CONFIG_VSERVER_LEGACY_VERSION ++ (1 << VCI_KCBIT_LEGACY_VERSION) | ++#endif ++ ++ /* configured features */ ++#ifdef CONFIG_VSERVER_PROC_SECURE ++ (1 << VCI_KCBIT_PROC_SECURE) | ++#endif ++#ifdef CONFIG_VSERVER_HARDCPU ++ (1 << VCI_KCBIT_HARDCPU) | ++#endif ++#ifdef CONFIG_VSERVER_IDLELIMIT ++ (1 << VCI_KCBIT_IDLELIMIT) | ++#endif ++#ifdef CONFIG_VSERVER_IDLETIME ++ (1 << VCI_KCBIT_IDLETIME) | ++#endif ++#ifdef CONFIG_VSERVER_COWBL ++ (1 << VCI_KCBIT_COWBL) | ++#endif ++ ++ /* debug options */ ++#ifdef CONFIG_VSERVER_DEBUG ++ (1 << VCI_KCBIT_DEBUG) | ++#endif ++#ifdef CONFIG_VSERVER_HISTORY ++ (1 << VCI_KCBIT_HISTORY) | ++#endif ++ ++ /* inode context tagging */ ++#if defined(CONFIG_TAGGING_NONE) ++ (0 << VCI_KCBIT_TAGGED) | ++#elif defined(CONFIG_TAGGING_UID16) ++ (1 << VCI_KCBIT_TAGGED) | ++#elif defined(CONFIG_TAGGING_GID16) ++ (2 << VCI_KCBIT_TAGGED) | ++#elif defined(CONFIG_TAGGING_ID24) ++ (3 << VCI_KCBIT_TAGGED) | ++#elif defined(CONFIG_TAGGING_INTERN) ++ (4 << VCI_KCBIT_TAGGED) | ++#elif defined(CONFIG_TAGGING_RUNTIME) ++ (5 << VCI_KCBIT_TAGGED) | ++#else ++ (7 << VCI_KCBIT_TAGGED) | ++#endif ++ 0; ++} ++ +Index: linux-2.6.16/mm/filemap.c +=================================================================== +--- linux-2.6.16.orig/mm/filemap.c ++++ linux-2.6.16/mm/filemap.c +@@ -1111,6 +1111,31 @@ int file_send_actor(read_descriptor_t * + return written; + } + ++/* FIXME: It would be as simple as this, if we had a (void __user*) to write. ++ * We already have a kernel buffer, so it should be even simpler, right? ;) ++ * ++ * Yes, sorta. After duplicating the complete path of generic_file_write(), ++ * at least some special cases could be removed, so the copy is simpler than ++ * the original. But it remains a copy, so overall complexity increases. ++ */ ++static ssize_t ++generic_kernel_file_write(struct file *, const char *, size_t, loff_t *); ++ ++ssize_t generic_file_sendpage(struct file *file, struct page *page, ++ int offset, size_t size, loff_t *ppos, int more) ++{ ++ ssize_t ret; ++ char *kaddr; ++ ++ kaddr = kmap(page); ++ ret = generic_kernel_file_write(file, kaddr + offset, size, ppos); ++ kunmap(page); ++ ++ return ret; ++} ++ ++EXPORT_SYMBOL(generic_file_sendpage); ++ + ssize_t generic_file_sendfile(struct file *in_file, loff_t *ppos, + size_t count, read_actor_t actor, void *target) + { +@@ -1761,6 +1786,19 @@ int remove_suid(struct dentry *dentry) + } + EXPORT_SYMBOL(remove_suid); + ++static inline size_t ++filemap_copy_from_kernel(struct page *page, unsigned long offset, ++ const char *buf, unsigned bytes) ++{ ++ char *kaddr; ++ ++ kaddr = kmap(page); ++ memcpy(kaddr + offset, buf, bytes); ++ kunmap(page); ++ ++ return bytes; ++} ++ + size_t + __filemap_copy_from_user_iovec(char *vaddr, + const struct iovec *iov, size_t base, size_t bytes) +@@ -2134,6 +2172,155 @@ out: + } + EXPORT_SYMBOL(generic_file_aio_write_nolock); + ++/* ++ * TODO: ++ * This largely tries to copy generic_file_aio_write_nolock(), although it ++ * doesn't have to be nearly as generic. A real cleanup should either ++ * merge this into generic_file_aio_write_nolock() as well or keep it special ++ * and remove as much code as possible. ++ */ ++static ssize_t ++generic_kernel_file_aio_write_nolock(struct kiocb *iocb, const struct iovec*iov, ++ unsigned long nr_segs, loff_t *ppos) ++{ ++ struct file *file = iocb->ki_filp; ++ struct address_space * mapping = file->f_mapping; ++ struct address_space_operations *a_ops = mapping->a_ops; ++ size_t ocount; /* original count */ ++ size_t count; /* after file limit checks */ ++ struct inode *inode = mapping->host; ++ long status = 0; ++ loff_t pos; ++ struct page *page; ++ struct page *cached_page = NULL; ++ const int isblk = S_ISBLK(inode->i_mode); ++ ssize_t written; ++ ssize_t err; ++ size_t bytes; ++ struct pagevec lru_pvec; ++ const struct iovec *cur_iov = iov; /* current iovec */ ++ size_t iov_base = 0; /* offset in the current iovec */ ++ unsigned long seg; ++ char *buf; ++ ++ ocount = 0; ++ for (seg = 0; seg < nr_segs; seg++) { ++ const struct iovec *iv = &iov[seg]; ++ ++ /* ++ * If any segment has a negative length, or the cumulative ++ * length ever wraps negative then return -EINVAL. ++ */ ++ ocount += iv->iov_len; ++ if (unlikely((ssize_t)(ocount|iv->iov_len) < 0)) ++ return -EINVAL; ++ } ++ ++ count = ocount; ++ pos = *ppos; ++ pagevec_init(&lru_pvec, 0); ++ ++ /* We can write back this queue in page reclaim */ ++ current->backing_dev_info = mapping->backing_dev_info; ++ written = 0; ++ ++ err = generic_write_checks(file, &pos, &count, isblk); ++ if (err) ++ goto out; ++ ++ ++ if (count == 0) ++ goto out; ++ ++ remove_suid(file->f_dentry); ++ file_update_time(file); ++ ++ /* There is no sane reason to use O_DIRECT */ ++ BUG_ON(file->f_flags & O_DIRECT); ++ ++ buf = (char *)iov->iov_base; ++ do { ++ unsigned long index; ++ unsigned long offset; ++ size_t copied; ++ ++ offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */ ++ index = pos >> PAGE_CACHE_SHIFT; ++ bytes = PAGE_CACHE_SIZE - offset; ++ if (bytes > count) ++ bytes = count; ++ ++ page = __grab_cache_page(mapping,index,&cached_page,&lru_pvec); ++ if (!page) { ++ status = -ENOMEM; ++ break; ++ } ++ ++ status = a_ops->prepare_write(file, page, offset, offset+bytes); ++ if (unlikely(status)) { ++ loff_t isize = i_size_read(inode); ++ /* ++ * prepare_write() may have instantiated a few blocks ++ * outside i_size. Trim these off again. ++ */ ++ unlock_page(page); ++ page_cache_release(page); ++ if (pos + bytes > isize) ++ vmtruncate(inode, isize); ++ break; ++ } ++ ++ BUG_ON(nr_segs != 1); ++ copied = filemap_copy_from_kernel(page, offset, buf, bytes); ++ ++ flush_dcache_page(page); ++ status = a_ops->commit_write(file, page, offset, offset+bytes); ++ if (likely(copied > 0)) { ++ if (!status) ++ status = copied; ++ ++ if (status >= 0) { ++ written += status; ++ count -= status; ++ pos += status; ++ buf += status; ++ if (unlikely(nr_segs > 1)) ++ filemap_set_next_iovec(&cur_iov, ++ &iov_base, status); ++ } ++ } ++ if (unlikely(copied != bytes)) ++ if (status >= 0) ++ status = -EFAULT; ++ unlock_page(page); ++ mark_page_accessed(page); ++ page_cache_release(page); ++ if (status < 0) ++ break; ++ balance_dirty_pages_ratelimited(mapping); ++ cond_resched(); ++ } while (count); ++ *ppos = pos; ++ ++ if (cached_page) ++ page_cache_release(cached_page); ++ ++ /* ++ * For now, when the user asks for O_SYNC, we'll actually give O_DSYNC ++ */ ++ if (status >= 0) { ++ if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) ++ status = generic_osync_inode(inode, mapping, ++ OSYNC_METADATA|OSYNC_DATA); ++ } ++ ++ err = written ? written : status; ++out: ++ pagevec_lru_add(&lru_pvec); ++ current->backing_dev_info = 0; ++ return err; ++} ++ + ssize_t + generic_file_aio_write_nolock(struct kiocb *iocb, const struct iovec *iov, + unsigned long nr_segs, loff_t *ppos) +@@ -2183,6 +2370,21 @@ generic_file_write_nolock(struct file *f + ret = wait_on_sync_kiocb(&kiocb); + return ret; + } ++ ++static ssize_t ++generic_kernel_file_write_nolock(struct file *file, const struct iovec *iov, ++ unsigned long nr_segs, loff_t *ppos) ++{ ++ struct kiocb kiocb; ++ ssize_t ret; ++ ++ init_sync_kiocb(&kiocb, file); ++ ret = generic_kernel_file_aio_write_nolock(&kiocb, iov, nr_segs, ppos); ++ if (ret == -EIOCBQUEUED) ++ ret = wait_on_sync_kiocb(&kiocb); ++ return ret; ++} ++ + EXPORT_SYMBOL(generic_file_write_nolock); + + ssize_t generic_file_aio_write(struct kiocb *iocb, const char __user *buf, +@@ -2237,6 +2439,21 @@ ssize_t generic_file_write(struct file * + } + EXPORT_SYMBOL(generic_file_write); + ++static ssize_t generic_kernel_file_write(struct file *file, const char *buf, ++ size_t count, loff_t *ppos) ++{ ++ struct inode *inode = file->f_mapping->host; ++ ssize_t err; ++ struct iovec local_iov = {.iov_base = (void __user *)buf, ++ .iov_len = count }; ++ ++ mutex_lock(&inode->i_mutex); ++ err = generic_kernel_file_write_nolock(file, &local_iov, 1, ppos); ++ mutex_unlock(&inode->i_mutex); ++ ++ return err; ++} ++ + ssize_t generic_file_readv(struct file *filp, const struct iovec *iov, + unsigned long nr_segs, loff_t *ppos) + { +Index: linux-2.6.16/mm/filemap_xip.c +=================================================================== +--- linux-2.6.16.orig/mm/filemap_xip.c ++++ linux-2.6.16/mm/filemap_xip.c +@@ -13,6 +13,7 @@ + #include <linux/module.h> + #include <linux/uio.h> + #include <linux/rmap.h> ++#include <linux/vs_memory.h> + #include <asm/tlbflush.h> + #include "filemap.h" + +Index: linux-2.6.16/mm/fremap.c +=================================================================== +--- linux-2.6.16.orig/mm/fremap.c ++++ linux-2.6.16/mm/fremap.c +@@ -15,6 +15,7 @@ + #include <linux/rmap.h> + #include <linux/module.h> + #include <linux/syscalls.h> ++#include <linux/vs_memory.h> + + #include <asm/mmu_context.h> + #include <asm/cacheflush.h> +@@ -35,6 +36,7 @@ static int zap_pte(struct mm_struct *mm, + set_page_dirty(page); + page_remove_rmap(page); + page_cache_release(page); ++ // dec_mm_counter(mm, file_rss); + } + } else { + if (!pte_file(pte)) +@@ -74,6 +76,8 @@ int install_page(struct mm_struct *mm, s + err = -ENOMEM; + if (page_mapcount(page) > INT_MAX/2) + goto unlock; ++ if (!vx_rsspages_avail(mm, 1)) ++ goto unlock; + + if (pte_none(*pte) || !zap_pte(mm, vma, addr, pte)) + inc_mm_counter(mm, file_rss); +Index: linux-2.6.16/mm/hugetlb.c +=================================================================== +--- linux-2.6.16.orig/mm/hugetlb.c ++++ linux-2.6.16/mm/hugetlb.c +@@ -18,6 +18,7 @@ + #include <asm/pgtable.h> + + #include <linux/hugetlb.h> ++#include <linux/vs_memory.h> + + const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL; + static unsigned long nr_huge_pages, free_huge_pages; +Index: linux-2.6.16/mm/memory.c +=================================================================== +--- linux-2.6.16.orig/mm/memory.c ++++ linux-2.6.16/mm/memory.c +@@ -1905,6 +1905,10 @@ again: + grab_swap_token(); + } + ++ if (!vx_rsspages_avail(mm, 1)) { ++ ret = VM_FAULT_OOM; ++ goto out; ++ } + mark_page_accessed(page); + lock_page(page); + if (!PageSwapCache(page)) { +@@ -1982,6 +1986,8 @@ static int do_anonymous_page(struct mm_s + /* Allocate our own private page. */ + pte_unmap(page_table); + ++ if (!vx_rsspages_avail(mm, 1)) ++ goto oom; + if (unlikely(anon_vma_prepare(vma))) + goto oom; + page = alloc_zeroed_user_highpage(vma, address); +@@ -2060,6 +2066,9 @@ static int do_no_page(struct mm_struct * + smp_rmb(); /* serializes i_size against truncate_count */ + } + retry: ++ /* FIXME: is that check useful here? */ ++ if (!vx_rsspages_avail(mm, 1)) ++ return VM_FAULT_OOM; + new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &ret); + /* + * No smp_rmb is needed here as long as there's a full +@@ -2207,21 +2216,32 @@ static inline int handle_pte_fault(struc + pte_t entry; + pte_t old_entry; + spinlock_t *ptl; ++ int ret, type = VXPT_UNKNOWN; + + old_entry = entry = *pte; + if (!pte_present(entry)) { + if (pte_none(entry)) { +- if (!vma->vm_ops || !vma->vm_ops->nopage) +- return do_anonymous_page(mm, vma, address, ++ if (!vma->vm_ops || !vma->vm_ops->nopage) { ++ ret = do_anonymous_page(mm, vma, address, + pte, pmd, write_access); +- return do_no_page(mm, vma, address, ++ type = VXPT_ANON; ++ goto out; ++ } ++ ret = do_no_page(mm, vma, address, + pte, pmd, write_access); ++ type = VXPT_NONE; ++ goto out; + } +- if (pte_file(entry)) +- return do_file_page(mm, vma, address, ++ if (pte_file(entry)) { ++ ret = do_file_page(mm, vma, address, + pte, pmd, write_access, entry); +- return do_swap_page(mm, vma, address, ++ type = VXPT_FILE; ++ goto out; ++ } ++ ret = do_swap_page(mm, vma, address, + pte, pmd, write_access, entry); ++ type = VXPT_SWAP; ++ goto out; + } + + ptl = pte_lockptr(mm, pmd); +@@ -2229,9 +2249,12 @@ static inline int handle_pte_fault(struc + if (unlikely(!pte_same(*pte, entry))) + goto unlock; + if (write_access) { +- if (!pte_write(entry)) +- return do_wp_page(mm, vma, address, ++ if (!pte_write(entry)) { ++ ret = do_wp_page(mm, vma, address, + pte, pmd, ptl, entry); ++ type = VXPT_WRITE; ++ goto out; ++ } + entry = pte_mkdirty(entry); + } + entry = pte_mkyoung(entry); +@@ -2251,7 +2274,10 @@ static inline int handle_pte_fault(struc + } + unlock: + pte_unmap_unlock(pte, ptl); +- return VM_FAULT_MINOR; ++ ret = VM_FAULT_MINOR; ++out: ++ vx_page_fault(mm, vma, type, ret); ++ return ret; + } + + /* +Index: linux-2.6.16/mm/mempolicy.c +=================================================================== +--- linux-2.6.16.orig/mm/mempolicy.c ++++ linux-2.6.16/mm/mempolicy.c +@@ -86,6 +86,7 @@ + #include <linux/swap.h> + #include <linux/seq_file.h> + #include <linux/proc_fs.h> ++#include <linux/vs_pid.h> + + #include <asm/tlbflush.h> + #include <asm/uaccess.h> +Index: linux-2.6.16/mm/mlock.c +=================================================================== +--- linux-2.6.16.orig/mm/mlock.c ++++ linux-2.6.16/mm/mlock.c +@@ -10,6 +10,7 @@ + #include <linux/mm.h> + #include <linux/mempolicy.h> + #include <linux/syscalls.h> ++#include <linux/vs_memory.h> + + + static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev, +@@ -65,7 +66,7 @@ success: + ret = make_pages_present(start, end); + } + +- vma->vm_mm->locked_vm -= pages; ++ vx_vmlocked_sub(vma->vm_mm, pages); + out: + if (ret == -ENOMEM) + ret = -EAGAIN; +@@ -123,7 +124,7 @@ static int do_mlock(unsigned long start, + + asmlinkage long sys_mlock(unsigned long start, size_t len) + { +- unsigned long locked; ++ unsigned long locked, grow; + unsigned long lock_limit; + int error = -ENOMEM; + +@@ -134,8 +135,10 @@ asmlinkage long sys_mlock(unsigned long + len = PAGE_ALIGN(len + (start & ~PAGE_MASK)); + start &= PAGE_MASK; + +- locked = len >> PAGE_SHIFT; +- locked += current->mm->locked_vm; ++ grow = len >> PAGE_SHIFT; ++ if (!vx_vmlocked_avail(current->mm, grow)) ++ goto out; ++ locked = current->mm->locked_vm + grow; + + lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur; + lock_limit >>= PAGE_SHIFT; +@@ -143,6 +146,7 @@ asmlinkage long sys_mlock(unsigned long + /* check against resource limits */ + if ((locked <= lock_limit) || capable(CAP_IPC_LOCK)) + error = do_mlock(start, len, 1); ++out: + up_write(¤t->mm->mmap_sem); + return error; + } +@@ -202,6 +206,8 @@ asmlinkage long sys_mlockall(int flags) + lock_limit >>= PAGE_SHIFT; + + ret = -ENOMEM; ++ if (!vx_vmlocked_avail(current->mm, current->mm->total_vm)) ++ goto out; + if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) || + capable(CAP_IPC_LOCK)) + ret = do_mlockall(flags); +Index: linux-2.6.16/mm/mmap.c +=================================================================== +--- linux-2.6.16.orig/mm/mmap.c ++++ linux-2.6.16/mm/mmap.c +@@ -1116,10 +1116,10 @@ munmap_back: + kmem_cache_free(vm_area_cachep, vma); + } + out: +- mm->total_vm += len >> PAGE_SHIFT; ++ vx_vmpages_add(mm, len >> PAGE_SHIFT); + vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT); + if (vm_flags & VM_LOCKED) { +- mm->locked_vm += len >> PAGE_SHIFT; ++ vx_vmlocked_add(mm, len >> PAGE_SHIFT); + make_pages_present(addr, addr + len); + } + if (flags & MAP_POPULATE) { +@@ -1479,9 +1479,9 @@ static int acct_stack_growth(struct vm_a + return -ENOMEM; + + /* Ok, everything looks good - let it rip */ +- mm->total_vm += grow; ++ vx_vmpages_add(mm, grow); + if (vma->vm_flags & VM_LOCKED) +- mm->locked_vm += grow; ++ vx_vmlocked_add(mm, grow); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow); + return 0; + } +@@ -1634,9 +1634,9 @@ static void remove_vma_list(struct mm_st + do { + long nrpages = vma_pages(vma); + +- mm->total_vm -= nrpages; ++ vx_vmpages_sub(mm, nrpages); + if (vma->vm_flags & VM_LOCKED) +- mm->locked_vm -= nrpages; ++ vx_vmlocked_sub(mm, nrpages); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages); + vma = remove_vma(vma); + } while (vma); +@@ -1865,6 +1865,8 @@ unsigned long do_brk(unsigned long addr, + lock_limit >>= PAGE_SHIFT; + if (locked > lock_limit && !capable(CAP_IPC_LOCK)) + return -EAGAIN; ++ if (!vx_vmlocked_avail(mm, len >> PAGE_SHIFT)) ++ return -ENOMEM; + } + + /* +@@ -1891,7 +1893,8 @@ unsigned long do_brk(unsigned long addr, + if (mm->map_count > sysctl_max_map_count) + return -ENOMEM; + +- if (security_vm_enough_memory(len >> PAGE_SHIFT)) ++ if (security_vm_enough_memory(len >> PAGE_SHIFT) || ++ !vx_vmpages_avail(mm, len >> PAGE_SHIFT)) + return -ENOMEM; + + flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags; +@@ -1919,9 +1922,9 @@ unsigned long do_brk(unsigned long addr, + vma->vm_page_prot = protection_map[flags & 0x0f]; + vma_link(mm, vma, prev, rb_link, rb_parent); + out: +- mm->total_vm += len >> PAGE_SHIFT; ++ vx_vmpages_add(mm, len >> PAGE_SHIFT); + if (flags & VM_LOCKED) { +- mm->locked_vm += len >> PAGE_SHIFT; ++ vx_vmlocked_add(mm, len >> PAGE_SHIFT); + make_pages_present(addr, addr + len); + } + return addr; +@@ -1947,6 +1950,11 @@ void exit_mmap(struct mm_struct *mm) + free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0); + tlb_finish_mmu(tlb, 0, end); + ++ set_mm_counter(mm, file_rss, 0); ++ set_mm_counter(mm, anon_rss, 0); ++ vx_vmpages_sub(mm, mm->total_vm); ++ vx_vmlocked_sub(mm, mm->locked_vm); ++ + /* + * Walk the list again, actually closing and freeing it, + * with preemption enabled, without holding any MM locks. +@@ -1986,7 +1994,8 @@ int insert_vm_struct(struct mm_struct * + if (__vma && __vma->vm_start < vma->vm_end) + return -ENOMEM; + if ((vma->vm_flags & VM_ACCOUNT) && +- security_vm_enough_memory(vma_pages(vma))) ++ (security_vm_enough_memory(vma_pages(vma)) || ++ !vx_vmpages_avail(mm, vma_pages(vma)))) + return -ENOMEM; + vma_link(mm, vma, prev, rb_link, rb_parent); + return 0; +@@ -2060,5 +2069,7 @@ int may_expand_vm(struct mm_struct *mm, + + if (cur + npages > lim) + return 0; ++ if (!vx_vmpages_avail(mm, npages)) ++ return 0; + return 1; + } +Index: linux-2.6.16/mm/mremap.c +=================================================================== +--- linux-2.6.16.orig/mm/mremap.c ++++ linux-2.6.16/mm/mremap.c +@@ -18,6 +18,7 @@ + #include <linux/highmem.h> + #include <linux/security.h> + #include <linux/syscalls.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/cacheflush.h> +@@ -211,7 +212,7 @@ static unsigned long move_vma(struct vm_ + * If this were a serious issue, we'd add a flag to do_munmap(). + */ + hiwater_vm = mm->hiwater_vm; +- mm->total_vm += new_len >> PAGE_SHIFT; ++ vx_vmpages_add(mm, new_len >> PAGE_SHIFT); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT); + + if (do_munmap(mm, old_addr, old_len) < 0) { +@@ -229,7 +230,7 @@ static unsigned long move_vma(struct vm_ + } + + if (vm_flags & VM_LOCKED) { +- mm->locked_vm += new_len >> PAGE_SHIFT; ++ vx_vmlocked_add(mm, new_len >> PAGE_SHIFT); + if (new_len > old_len) + make_pages_present(new_addr + old_len, + new_addr + new_len); +@@ -336,6 +337,9 @@ unsigned long do_mremap(unsigned long ad + ret = -EAGAIN; + if (locked > lock_limit && !capable(CAP_IPC_LOCK)) + goto out; ++ if (!vx_vmlocked_avail(current->mm, ++ (new_len - old_len) >> PAGE_SHIFT)) ++ goto out; + } + if (!may_expand_vm(mm, (new_len - old_len) >> PAGE_SHIFT)) { + ret = -ENOMEM; +@@ -364,10 +368,10 @@ unsigned long do_mremap(unsigned long ad + vma_adjust(vma, vma->vm_start, + addr + new_len, vma->vm_pgoff, NULL); + +- mm->total_vm += pages; ++ vx_vmpages_add(mm, pages); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages); + if (vma->vm_flags & VM_LOCKED) { +- mm->locked_vm += pages; ++ vx_vmlocked_add(mm, pages); + make_pages_present(addr + old_len, + addr + new_len); + } +Index: linux-2.6.16/mm/nommu.c +=================================================================== +--- linux-2.6.16.orig/mm/nommu.c ++++ linux-2.6.16/mm/nommu.c +@@ -820,7 +820,7 @@ unsigned long do_mmap_pgoff(struct file + realalloc += kobjsize(vma); + askedalloc += sizeof(*vma); + +- current->mm->total_vm += len >> PAGE_SHIFT; ++ vx_vmpages_add(current->mm, len >> PAGE_SHIFT); + + add_nommu_vma(vma); + +@@ -937,7 +937,7 @@ int do_munmap(struct mm_struct *mm, unsi + kfree(vml); + + update_hiwater_vm(mm); +- mm->total_vm -= len >> PAGE_SHIFT; ++ vx_vmpages_sub(mm, len >> PAGE_SHIFT); + + #ifdef DEBUG + show_process_blocks(); +@@ -956,7 +956,7 @@ void exit_mmap(struct mm_struct * mm) + printk("Exit_mmap:\n"); + #endif + +- mm->total_vm = 0; ++ vx_vmpages_sub(mm, mm->total_vm); + + while ((tmp = mm->context.vmlist)) { + mm->context.vmlist = tmp->next; +Index: linux-2.6.16/mm/oom_kill.c +=================================================================== +--- linux-2.6.16.orig/mm/oom_kill.c ++++ linux-2.6.16/mm/oom_kill.c +@@ -55,6 +55,7 @@ unsigned long badness(struct task_struct + * The memory size of the process is the basis for the badness. + */ + points = p->mm->total_vm; ++ /* FIXME: add vserver badness ;) */ + + /* + * Processes which fork a lot of child processes are likely +@@ -230,8 +231,8 @@ static void __oom_kill_task(task_t *p, c + return; + } + task_unlock(p); +- printk(KERN_ERR "%s: Killed process %d (%s).\n", +- message, p->pid, p->comm); ++ printk(KERN_ERR "%s: Killed process %d[#%u] (%s).\n", ++ message, p->pid, p->xid, p->comm); + + /* + * We give our sacrificial lamb high priority and access to +Index: linux-2.6.16/mm/page_alloc.c +=================================================================== +--- linux-2.6.16.orig/mm/page_alloc.c ++++ linux-2.6.16/mm/page_alloc.c +@@ -37,6 +37,7 @@ + #include <linux/nodemask.h> + #include <linux/vmalloc.h> + #include <linux/mempolicy.h> ++#include <linux/vs_limit.h> + + #include <asm/tlbflush.h> + #include "internal.h" +@@ -1350,6 +1351,8 @@ void si_meminfo(struct sysinfo *val) + val->freehigh = 0; + #endif + val->mem_unit = PAGE_SIZE; ++ if (vx_flags(VXF_VIRT_MEM, 0)) ++ vx_vsi_meminfo(val); + } + + EXPORT_SYMBOL(si_meminfo); +@@ -1364,6 +1367,8 @@ void si_meminfo_node(struct sysinfo *val + val->totalhigh = pgdat->node_zones[ZONE_HIGHMEM].present_pages; + val->freehigh = pgdat->node_zones[ZONE_HIGHMEM].free_pages; + val->mem_unit = PAGE_SIZE; ++ if (vx_flags(VXF_VIRT_MEM, 0)) ++ vx_vsi_meminfo(val); + } + #endif + +Index: linux-2.6.16/mm/rmap.c +=================================================================== +--- linux-2.6.16.orig/mm/rmap.c ++++ linux-2.6.16/mm/rmap.c +@@ -53,6 +53,7 @@ + #include <linux/rmap.h> + #include <linux/rcupdate.h> + #include <linux/module.h> ++#include <linux/vs_memory.h> + + #include <asm/tlbflush.h> + +Index: linux-2.6.16/mm/shmem.c +=================================================================== +--- linux-2.6.16.orig/mm/shmem.c ++++ linux-2.6.16/mm/shmem.c +@@ -51,7 +51,6 @@ + #include <asm/pgtable.h> + + /* This magic number is used in glibc for posix shared memory */ +-#define TMPFS_MAGIC 0x01021994 + + #define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long)) + #define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE) +@@ -1656,7 +1655,7 @@ static int shmem_statfs(struct super_blo + { + struct shmem_sb_info *sbinfo = SHMEM_SB(sb); + +- buf->f_type = TMPFS_MAGIC; ++ buf->f_type = TMPFS_SUPER_MAGIC; + buf->f_bsize = PAGE_CACHE_SIZE; + buf->f_namelen = NAME_MAX; + spin_lock(&sbinfo->stat_lock); +@@ -2098,7 +2097,7 @@ static int shmem_fill_super(struct super + sb->s_maxbytes = SHMEM_MAX_BYTES; + sb->s_blocksize = PAGE_CACHE_SIZE; + sb->s_blocksize_bits = PAGE_CACHE_SHIFT; +- sb->s_magic = TMPFS_MAGIC; ++ sb->s_magic = TMPFS_SUPER_MAGIC; + sb->s_op = &shmem_ops; + + inode = shmem_get_inode(sb, S_IFDIR | mode, 0); +Index: linux-2.6.16/mm/slab.c +=================================================================== +--- linux-2.6.16.orig/mm/slab.c ++++ linux-2.6.16/mm/slab.c +@@ -487,6 +487,8 @@ struct kmem_cache { + #define STATS_INC_FREEMISS(x) do { } while (0) + #endif + ++#include "slab_vs.h" ++ + #if DEBUG + /* Magic nums for obj red zoning. + * Placed in the first word before and the first word after an obj. +@@ -2819,6 +2821,7 @@ __cache_alloc(struct kmem_cache *cachep, + + local_irq_save(save_flags); + objp = ____cache_alloc(cachep, flags); ++ vx_slab_alloc(cachep, flags); + local_irq_restore(save_flags); + objp = cache_alloc_debugcheck_after(cachep, flags, objp, + caller); +@@ -2864,6 +2867,7 @@ static void *__cache_alloc_node(struct k + + obj = slab_get_obj(cachep, slabp, nodeid); + check_slabp(cachep, slabp); ++ vx_slab_alloc(cachep, flags); + l3->free_objects--; + /* move slabp to correct slabp list: */ + list_del(&slabp->list); +@@ -2899,6 +2903,7 @@ static void free_block(struct kmem_cache + int i; + struct kmem_list3 *l3; + ++ // printk("·· free_block(%x) = %dx%x\n", cachep->gfpflags, nr_objects, cachep->objsize); + for (i = 0; i < nr_objects; i++) { + void *objp = objpp[i]; + struct slab *slabp; +@@ -2996,6 +3001,7 @@ static inline void __cache_free(struct k + + check_irq_off(); + objp = cache_free_debugcheck(cachep, objp, __builtin_return_address(0)); ++ vx_slab_free(cachep); + + /* Make sure we are not freeing a object from another + * node to the array cache on this cpu. +Index: linux-2.6.16/mm/slab_vs.h +=================================================================== +--- /dev/null ++++ linux-2.6.16/mm/slab_vs.h +@@ -0,0 +1,23 @@ ++ ++static inline ++void vx_slab_alloc(struct kmem_cache *cachep, gfp_t flags) ++{ ++ int what = cachep->gfpflags & GFP_ZONEMASK; ++ ++ if (!current->vx_info) ++ return; ++ ++ atomic_add(cachep->buffer_size, ¤t->vx_info->cacct.slab[what]); ++} ++ ++static inline ++void vx_slab_free(struct kmem_cache *cachep) ++{ ++ int what = cachep->gfpflags & GFP_ZONEMASK; ++ ++ if (!current->vx_info) ++ return; ++ ++ atomic_sub(cachep->buffer_size, ¤t->vx_info->cacct.slab[what]); ++} ++ +Index: linux-2.6.16/mm/swapfile.c +=================================================================== +--- linux-2.6.16.orig/mm/swapfile.c ++++ linux-2.6.16/mm/swapfile.c +@@ -32,6 +32,7 @@ + #include <asm/pgtable.h> + #include <asm/tlbflush.h> + #include <linux/swapops.h> ++#include <linux/vs_memory.h> + + DEFINE_SPINLOCK(swap_lock); + unsigned int nr_swapfiles; +@@ -1634,6 +1635,8 @@ void si_swapinfo(struct sysinfo *val) + val->freeswap = nr_swap_pages + nr_to_be_unused; + val->totalswap = total_swap_pages + nr_to_be_unused; + spin_unlock(&swap_lock); ++ if (vx_flags(VXF_VIRT_MEM, 0)) ++ vx_vsi_swapinfo(val); + } + + /* +Index: linux-2.6.16/mm/vmscan.c +=================================================================== +--- linux-2.6.16.orig/mm/vmscan.c ++++ linux-2.6.16/mm/vmscan.c +@@ -1832,7 +1832,7 @@ static int __init kswapd_init(void) + swap_setup(); + for_each_pgdat(pgdat) + pgdat->kswapd +- = find_task_by_pid(kernel_thread(kswapd, pgdat, CLONE_KERNEL)); ++ = find_task_by_real_pid(kernel_thread(kswapd, pgdat, CLONE_KERNEL)); + total_memory = nr_free_pagecache_pages(); + hotcpu_notifier(cpu_callback, 0); + return 0; +Index: linux-2.6.16/net/core/dev.c +=================================================================== +--- linux-2.6.16.orig/net/core/dev.c ++++ linux-2.6.16/net/core/dev.c +@@ -114,6 +114,7 @@ + #include <linux/wireless.h> /* Note : will define WIRELESS_EXT */ + #include <net/iw_handler.h> + #endif /* CONFIG_NET_RADIO */ ++#include <linux/vs_network.h> + #include <asm/current.h> + + /* +@@ -1848,6 +1849,9 @@ static int dev_ifconf(char __user *arg) + + total = 0; + for (dev = dev_base; dev; dev = dev->next) { ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !dev_in_nx_info(dev, current->nx_info)) ++ continue; + for (i = 0; i < NPROTO; i++) { + if (gifconf_list[i]) { + int done; +@@ -1908,6 +1912,10 @@ void dev_seq_stop(struct seq_file *seq, + + static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev) + { ++ struct nx_info *nxi = current->nx_info; ++ ++ if (vx_flags(VXF_HIDE_NETIF, 0) && !dev_in_nx_info(dev, nxi)) ++ return; + if (dev->get_stats) { + struct net_device_stats *stats = dev->get_stats(dev); + +Index: linux-2.6.16/net/core/rtnetlink.c +=================================================================== +--- linux-2.6.16.orig/net/core/rtnetlink.c ++++ linux-2.6.16/net/core/rtnetlink.c +@@ -278,6 +278,9 @@ static int rtnetlink_dump_ifinfo(struct + for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) { + if (idx < s_idx) + continue; ++ if (vx_info_flags(skb->sk->sk_vx_info, VXF_HIDE_NETIF, 0) && ++ !dev_in_nx_info(dev, skb->sk->sk_nx_info)) ++ continue; + if (rtnetlink_fill_ifinfo(skb, dev, RTM_NEWLINK, + NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, 0, +@@ -451,6 +454,9 @@ void rtmsg_ifinfo(int type, struct net_d + sizeof(struct rtnl_link_ifmap) + + sizeof(struct rtnl_link_stats) + 128); + ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !dev_in_nx_info(dev, current->nx_info)) ++ return; + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) + return; +Index: linux-2.6.16/net/core/sock.c +=================================================================== +--- linux-2.6.16.orig/net/core/sock.c ++++ linux-2.6.16/net/core/sock.c +@@ -125,6 +125,9 @@ + #include <linux/ipsec.h> + + #include <linux/filter.h> ++#include <linux/vs_socket.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_context.h> + + #ifdef CONFIG_INET + #include <net/tcp.h> +@@ -660,6 +663,8 @@ struct sock *sk_alloc(int family, gfp_t + sk->sk_prot = sk->sk_prot_creator = prot; + sock_lock_init(sk); + } ++ sock_vx_init(sk); ++ sock_nx_init(sk); + + if (security_sk_alloc(sk, family, priority)) + goto out_free; +@@ -698,6 +703,11 @@ void sk_free(struct sock *sk) + __FUNCTION__, atomic_read(&sk->sk_omem_alloc)); + + security_sk_free(sk); ++ vx_sock_dec(sk); ++ clr_vx_info(&sk->sk_vx_info); ++ sk->sk_xid = -1; ++ clr_nx_info(&sk->sk_nx_info); ++ sk->sk_nid = -1; + if (sk->sk_prot_creator->slab != NULL) + kmem_cache_free(sk->sk_prot_creator->slab, sk); + else +@@ -715,6 +725,8 @@ struct sock *sk_clone(const struct sock + memcpy(newsk, sk, sk->sk_prot->obj_size); + + /* SANITY */ ++ sock_vx_init(newsk); ++ sock_nx_init(newsk); + sk_node_init(&newsk->sk_node); + sock_lock_init(newsk); + bh_lock_sock(newsk); +@@ -755,6 +767,12 @@ struct sock *sk_clone(const struct sock + newsk->sk_priority = 0; + atomic_set(&newsk->sk_refcnt, 2); + ++ set_vx_info(&newsk->sk_vx_info, sk->sk_vx_info); ++ newsk->sk_xid = sk->sk_xid; ++ vx_sock_inc(newsk); ++ set_nx_info(&newsk->sk_nx_info, sk->sk_nx_info); ++ newsk->sk_nid = sk->sk_nid; ++ + /* + * Increment the counter in the same struct proto as the master + * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that +@@ -1319,6 +1337,11 @@ void sock_init_data(struct socket *sock, + sk->sk_stamp.tv_sec = -1L; + sk->sk_stamp.tv_usec = -1L; + ++ set_vx_info(&sk->sk_vx_info, current->vx_info); ++ sk->sk_xid = vx_current_xid(); ++ vx_sock_inc(sk); ++ set_nx_info(&sk->sk_nx_info, current->nx_info); ++ sk->sk_nid = nx_current_nid(); + atomic_set(&sk->sk_refcnt, 1); + } + +Index: linux-2.6.16/net/ipv4/af_inet.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/af_inet.c ++++ linux-2.6.16/net/ipv4/af_inet.c +@@ -114,6 +114,7 @@ + #ifdef CONFIG_IP_MROUTE + #include <linux/mroute.h> + #endif ++#include <linux/vs_limit.h> + + DEFINE_SNMP_STAT(struct linux_mib, net_statistics) __read_mostly; + +@@ -282,9 +283,11 @@ lookup_protocol: + } + + err = -EPERM; ++ if ((protocol == IPPROTO_ICMP) && vx_ccaps(VXC_RAW_ICMP)) ++ goto override; + if (answer->capability > 0 && !capable(answer->capability)) + goto out_rcu_unlock; +- ++override: + sock->ops = answer->ops; + answer_prot = answer->prot; + answer_no_check = answer->no_check; +@@ -401,6 +404,10 @@ int inet_bind(struct socket *sock, struc + unsigned short snum; + int chk_addr_ret; + int err; ++ __u32 s_addr; /* Address used for validation */ ++ __u32 s_addr1; /* Address used for socket */ ++ __u32 s_addr2; /* Broadcast address for the socket */ ++ struct nx_info *nxi = sk->sk_nx_info; + + /* If the socket has its own bind function then use it. (RAW) */ + if (sk->sk_prot->bind) { +@@ -411,7 +418,40 @@ int inet_bind(struct socket *sock, struc + if (addr_len < sizeof(struct sockaddr_in)) + goto out; + +- chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr); ++ s_addr = addr->sin_addr.s_addr; ++ s_addr1 = s_addr; ++ s_addr2 = 0xffffffffl; ++ ++ vxdprintk(VXD_CBIT(net, 3), ++ "inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d", ++ sk, sk->sk_nx_info, sk->sk_socket, ++ (sk->sk_socket?sk->sk_socket->flags:0), ++ VXD_QUAD(s_addr)); ++ if (nxi) { ++ __u32 v4_bcast = nxi->v4_bcast; ++ __u32 ipv4root = nxi->ipv4[0]; ++ int nbipv4 = nxi->nbipv4; ++ ++ if (s_addr == 0) { ++ /* bind to any for 1-n */ ++ s_addr = ipv4root; ++ s_addr1 = (nbipv4 > 1) ? 0 : s_addr; ++ s_addr2 = v4_bcast; ++ } else if (s_addr == IPI_LOOPBACK) { ++ /* rewrite localhost to ipv4root */ ++ s_addr = ipv4root; ++ s_addr1 = ipv4root; ++ } else if (s_addr != v4_bcast) { ++ /* normal address bind */ ++ if (!addr_in_nx_info(nxi, s_addr)) ++ return -EADDRNOTAVAIL; ++ } ++ } ++ chk_addr_ret = inet_addr_type(s_addr); ++ ++ vxdprintk(VXD_CBIT(net, 3), ++ "inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d", ++ sk, VXD_QUAD(s_addr), VXD_QUAD(s_addr1), VXD_QUAD(s_addr2)); + + /* Not specified by any standard per-se, however it breaks too + * many applications when removed. It is unfortunate since +@@ -423,7 +463,7 @@ int inet_bind(struct socket *sock, struc + err = -EADDRNOTAVAIL; + if (!sysctl_ip_nonlocal_bind && + !inet->freebind && +- addr->sin_addr.s_addr != INADDR_ANY && ++ s_addr != INADDR_ANY && + chk_addr_ret != RTN_LOCAL && + chk_addr_ret != RTN_MULTICAST && + chk_addr_ret != RTN_BROADCAST) +@@ -448,7 +488,8 @@ int inet_bind(struct socket *sock, struc + if (sk->sk_state != TCP_CLOSE || inet->num) + goto out_release_sock; + +- inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr; ++ inet->rcv_saddr = inet->saddr = s_addr1; ++ inet->rcv_saddr2 = s_addr2; + if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST) + inet->saddr = 0; /* Use device */ + +Index: linux-2.6.16/net/ipv4/devinet.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/devinet.c ++++ linux-2.6.16/net/ipv4/devinet.c +@@ -529,6 +529,33 @@ static __inline__ int inet_abc_len(u32 a + return rc; + } + ++/* ++ Check that a device is not member of the ipv4root assigned to the process ++ Return true if this is the case ++ ++ If the process is not bound to specific IP, then it returns 0 (all ++ interface are fine). ++*/ ++static inline int devinet_notiproot (struct in_ifaddr *ifa) ++{ ++ int ret = 0; ++ struct nx_info *nxi; ++ ++ if ((nxi = current->nx_info)) { ++ int i; ++ int nbip = nxi->nbipv4; ++ __u32 addr = ifa->ifa_local; ++ ret = 1; ++ for (i=0; i<nbip; i++) { ++ if(nxi->ipv4[i] == addr) { ++ ret = 0; ++ break; ++ } ++ } ++ } ++ return ret; ++} ++ + + int devinet_ioctl(unsigned int cmd, void __user *arg) + { +@@ -636,6 +663,9 @@ int devinet_ioctl(unsigned int cmd, void + ret = -EADDRNOTAVAIL; + if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS) + goto done; ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !ifa_in_nx_info(ifa, current->nx_info)) ++ goto done; + + switch(cmd) { + case SIOCGIFADDR: /* Get interface address */ +@@ -780,6 +810,9 @@ static int inet_gifconf(struct net_devic + goto out; + + for (; ifa; ifa = ifa->ifa_next) { ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !ifa_in_nx_info(ifa, current->nx_info)) ++ continue; + if (!buf) { + done += sizeof(ifr); + continue; +@@ -1091,6 +1124,7 @@ static int inet_dump_ifaddr(struct sk_bu + struct net_device *dev; + struct in_device *in_dev; + struct in_ifaddr *ifa; ++ struct sock *sk = skb->sk; + int s_ip_idx, s_idx = cb->args[0]; + + s_ip_idx = ip_idx = cb->args[1]; +@@ -1108,6 +1142,9 @@ static int inet_dump_ifaddr(struct sk_bu + + for (ifa = in_dev->ifa_list, ip_idx = 0; ifa; + ifa = ifa->ifa_next, ip_idx++) { ++ if (sk && vx_info_flags(sk->sk_vx_info, VXF_HIDE_NETIF, 0) && ++ !ifa_in_nx_info(ifa, sk->sk_nx_info)) ++ continue; + if (ip_idx < s_ip_idx) + continue; + if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid, +Index: linux-2.6.16/net/ipv4/fib_hash.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/fib_hash.c ++++ linux-2.6.16/net/ipv4/fib_hash.c +@@ -989,6 +989,8 @@ static unsigned fib_flag_trans(int type, + return flags; + } + ++extern int dev_in_nx_info(struct net_device *, struct nx_info *); ++ + /* + * This outputs /proc/net/route. + * +@@ -1019,7 +1021,8 @@ static int fib_seq_show(struct seq_file + prefix = f->fn_key; + mask = FZ_MASK(iter->zone); + flags = fib_flag_trans(fa->fa_type, mask, fi); +- if (fi) ++ if (fi && (!vx_flags(VXF_HIDE_NETIF, 0) || ++ dev_in_nx_info(fi->fib_dev, current->nx_info))) + snprintf(bf, sizeof(bf), + "%s\t%08X\t%08X\t%04X\t%d\t%u\t%d\t%08X\t%d\t%u\t%u", + fi->fib_dev ? fi->fib_dev->name : "*", prefix, +Index: linux-2.6.16/net/ipv4/inet_connection_sock.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/inet_connection_sock.c ++++ linux-2.6.16/net/ipv4/inet_connection_sock.c +@@ -40,7 +40,6 @@ int sysctl_local_port_range[2] = { 1024, + int inet_csk_bind_conflict(const struct sock *sk, + const struct inet_bind_bucket *tb) + { +- const u32 sk_rcv_saddr = inet_rcv_saddr(sk); + struct sock *sk2; + struct hlist_node *node; + int reuse = sk->sk_reuse; +@@ -53,9 +52,8 @@ int inet_csk_bind_conflict(const struct + sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) { + if (!reuse || !sk2->sk_reuse || + sk2->sk_state == TCP_LISTEN) { +- const u32 sk2_rcv_saddr = inet_rcv_saddr(sk2); +- if (!sk2_rcv_saddr || !sk_rcv_saddr || +- sk2_rcv_saddr == sk_rcv_saddr) ++ if (nx_addr_conflict(sk->sk_nx_info, ++ inet_rcv_saddr(sk), sk2)) + break; + } + } +Index: linux-2.6.16/net/ipv4/inet_diag.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/inet_diag.c ++++ linux-2.6.16/net/ipv4/inet_diag.c +@@ -694,6 +694,8 @@ static int inet_diag_dump(struct sk_buff + sk_for_each(sk, node, &hashinfo->listening_hash[i]) { + struct inet_sock *inet = inet_sk(sk); + ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (num < s_num) { + num++; + continue; +@@ -754,6 +756,8 @@ skip_listen_ht: + sk_for_each(sk, node, &head->chain) { + struct inet_sock *inet = inet_sk(sk); + ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (num < s_num) + goto next_normal; + if (!(r->idiag_states & (1 << sk->sk_state))) +@@ -778,6 +782,8 @@ next_normal: + inet_twsk_for_each(tw, node, + &hashinfo->ehash[i + hashinfo->ehash_size].chain) { + ++ if (!vx_check(tw->tw_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (num < s_num) + goto next_dying; + if (r->id.idiag_sport != tw->tw_sport && +Index: linux-2.6.16/net/ipv4/inet_hashtables.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/inet_hashtables.c ++++ linux-2.6.16/net/ipv4/inet_hashtables.c +@@ -143,11 +143,10 @@ struct sock *__inet_lookup_listener(cons + const __u32 rcv_saddr = inet->rcv_saddr; + int score = sk->sk_family == PF_INET ? 1 : 0; + +- if (rcv_saddr) { +- if (rcv_saddr != daddr) +- continue; ++ if (inet_addr_match(sk->sk_nx_info, daddr, rcv_saddr)) + score += 2; +- } ++ else ++ continue; + if (sk->sk_bound_dev_if) { + if (sk->sk_bound_dev_if != dif) + continue; +Index: linux-2.6.16/net/ipv4/raw.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/raw.c ++++ linux-2.6.16/net/ipv4/raw.c +@@ -102,6 +102,27 @@ static void raw_v4_unhash(struct sock *s + write_unlock_bh(&raw_v4_lock); + } + ++ ++/* ++ * Check if a given address matches for a socket ++ * ++ * nxi: the socket's nx_info if any ++ * addr: to be verified address ++ * saddr/baddr: socket addresses ++ */ ++static inline int raw_addr_match ( ++ struct nx_info *nxi, ++ uint32_t addr, ++ uint32_t saddr, ++ uint32_t baddr) ++{ ++ if (addr && (saddr == addr || baddr == addr)) ++ return 1; ++ if (!saddr) ++ return addr_in_nx_info(nxi, addr); ++ return 0; ++} ++ + struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num, + unsigned long raddr, unsigned long laddr, + int dif) +@@ -113,7 +134,8 @@ struct sock *__raw_v4_lookup(struct sock + + if (inet->num == num && + !(inet->daddr && inet->daddr != raddr) && +- !(inet->rcv_saddr && inet->rcv_saddr != laddr) && ++ raw_addr_match(sk->sk_nx_info, laddr, ++ inet->rcv_saddr, inet->rcv_saddr2) && + !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)) + goto found; /* gotcha */ + } +@@ -313,6 +335,11 @@ static int raw_send_hdrinc(struct sock * + iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); + } + ++ err = -EPERM; ++ if (!vx_check(0, VX_ADMIN) && !capable(CAP_NET_RAW) ++ && (!addr_in_nx_info(sk->sk_nx_info, iph->saddr))) ++ goto error_free; ++ + err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, + dst_output); + if (err > 0) +@@ -324,6 +351,7 @@ out: + + error_fault: + err = -EFAULT; ++error_free: + kfree_skb(skb); + error: + IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS); +@@ -484,6 +512,12 @@ static int raw_sendmsg(struct kiocb *ioc + if (!inet->hdrincl) + raw_probe_proto_opt(&fl, msg); + ++ if (sk->sk_nx_info) { ++ err = ip_find_src(sk->sk_nx_info, &rt, &fl); ++ ++ if (err) ++ goto done; ++ } + err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT)); + } + if (err) +@@ -753,7 +787,8 @@ static struct sock *raw_get_first(struct + struct hlist_node *node; + + sk_for_each(sk, node, &raw_v4_htable[state->bucket]) +- if (sk->sk_family == PF_INET) ++ if (sk->sk_family == PF_INET && ++ vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) + goto found; + } + sk = NULL; +@@ -769,7 +804,8 @@ static struct sock *raw_get_next(struct + sk = sk_next(sk); + try_again: + ; +- } while (sk && sk->sk_family != PF_INET); ++ } while (sk && (sk->sk_family != PF_INET || ++ !vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))); + + if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) { + sk = sk_head(&raw_v4_htable[state->bucket]); +Index: linux-2.6.16/net/ipv4/tcp.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/tcp.c ++++ linux-2.6.16/net/ipv4/tcp.c +@@ -257,6 +257,7 @@ + #include <linux/fs.h> + #include <linux/random.h> + #include <linux/bootmem.h> ++#include <linux/in.h> + + #include <net/icmp.h> + #include <net/tcp.h> +Index: linux-2.6.16/net/ipv4/tcp_ipv4.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/tcp_ipv4.c ++++ linux-2.6.16/net/ipv4/tcp_ipv4.c +@@ -77,6 +77,7 @@ + #include <linux/stddef.h> + #include <linux/proc_fs.h> + #include <linux/seq_file.h> ++#include <linux/vserver/debug.h> + + int sysctl_tcp_tw_reuse; + int sysctl_tcp_low_latency; +@@ -1350,6 +1351,12 @@ static void *listening_get_next(struct s + req = req->dl_next; + while (1) { + while (req) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "sk,req: %p [#%d] (from %d)", req->sk, ++ (req->sk)?req->sk->sk_xid:0, vx_current_xid()); ++ if (req->sk && ++ !vx_check(req->sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (req->rsk_ops->family == st->family) { + cur = req; + goto out; +@@ -1374,6 +1381,10 @@ get_req: + } + get_sk: + sk_for_each_from(sk, node) { ++ vxdprintk(VXD_CBIT(net, 6), "sk: %p [#%d] (from %d)", ++ sk, sk->sk_xid, vx_current_xid()); ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (sk->sk_family == st->family) { + cur = sk; + goto out; +@@ -1425,18 +1436,26 @@ static void *established_get_first(struc + + read_lock(&tcp_hashinfo.ehash[st->bucket].lock); + sk_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) { +- if (sk->sk_family != st->family) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "sk,egf: %p [#%d] (from %d)", ++ sk, sk->sk_xid, vx_current_xid()); ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; ++ if (sk->sk_family != st->family) + continue; +- } + rc = sk; + goto out; + } + st->state = TCP_SEQ_STATE_TIME_WAIT; + inet_twsk_for_each(tw, node, + &tcp_hashinfo.ehash[st->bucket + tcp_hashinfo.ehash_size].chain) { +- if (tw->tw_family != st->family) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "tw: %p [#%d] (from %d)", ++ tw, tw->tw_xid, vx_current_xid()); ++ if (!vx_check(tw->tw_xid, VX_IDENT|VX_WATCH)) ++ continue; ++ if (tw->tw_family != st->family) + continue; +- } + rc = tw; + goto out; + } +@@ -1460,7 +1479,8 @@ static void *established_get_next(struct + tw = cur; + tw = tw_next(tw); + get_tw: +- while (tw && tw->tw_family != st->family) { ++ while (tw && (tw->tw_family != st->family || ++ !vx_check(tw->tw_xid, VX_IDENT|VX_WATCH))) { + tw = tw_next(tw); + } + if (tw) { +@@ -1484,6 +1504,11 @@ get_tw: + sk = sk_next(sk); + + sk_for_each_from(sk, node) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "sk,egn: %p [#%d] (from %d)", ++ sk, sk->sk_xid, vx_current_xid()); ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (sk->sk_family == st->family) + goto found; + } +Index: linux-2.6.16/net/ipv4/tcp_minisocks.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/tcp_minisocks.c ++++ linux-2.6.16/net/ipv4/tcp_minisocks.c +@@ -29,6 +29,10 @@ + #include <net/inet_common.h> + #include <net/xfrm.h> + ++#include <linux/vs_limit.h> ++#include <linux/vs_socket.h> ++#include <linux/vs_context.h> ++ + #ifdef CONFIG_SYSCTL + #define SYNC_INIT 0 /* let the user enable it */ + #else +@@ -295,6 +299,11 @@ void tcp_time_wait(struct sock *sk, int + tcptw->tw_ts_recent = tp->rx_opt.ts_recent; + tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp; + ++ tw->tw_xid = sk->sk_xid; ++ tw->tw_vx_info = NULL; ++ tw->tw_nid = sk->sk_nid; ++ tw->tw_nx_info = NULL; ++ + #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + if (tw->tw_family == PF_INET6) { + struct ipv6_pinfo *np = inet6_sk(sk); +Index: linux-2.6.16/net/ipv4/udp.c +=================================================================== +--- linux-2.6.16.orig/net/ipv4/udp.c ++++ linux-2.6.16/net/ipv4/udp.c +@@ -176,14 +176,12 @@ gotit: + struct inet_sock *inet2 = inet_sk(sk2); + + if (inet2->num == snum && +- sk2 != sk && +- !ipv6_only_sock(sk2) && ++ sk2 != sk && !ipv6_only_sock(sk2) && + (!sk2->sk_bound_dev_if || + !sk->sk_bound_dev_if || + sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && +- (!inet2->rcv_saddr || +- !inet->rcv_saddr || +- inet2->rcv_saddr == inet->rcv_saddr) && ++ nx_addr_conflict(sk->sk_nx_info, ++ inet_rcv_saddr(sk), sk2) && + (!sk2->sk_reuse || !sk->sk_reuse)) + goto fail; + } +@@ -218,6 +216,17 @@ static void udp_v4_unhash(struct sock *s + write_unlock_bh(&udp_hash_lock); + } + ++static inline int udp_in_list(struct nx_info *nx_info, u32 addr) ++{ ++ int n = nx_info->nbipv4; ++ int i; ++ ++ for (i=0; i<n; i++) ++ if (nx_info->ipv4[i] == addr) ++ return 1; ++ return 0; ++} ++ + /* UDP is nearly always wildcards out the wazoo, it makes no sense to try + * harder than this. -DaveM + */ +@@ -238,6 +247,11 @@ static struct sock *udp_v4_lookup_longwa + if (inet->rcv_saddr != daddr) + continue; + score+=2; ++ } else if (sk->sk_nx_info) { ++ if (udp_in_list(sk->sk_nx_info, daddr)) ++ score+=2; ++ else ++ continue; + } + if (inet->daddr) { + if (inet->daddr != saddr) +@@ -294,7 +308,8 @@ static inline struct sock *udp_v4_mcast_ + if (inet->num != hnum || + (inet->daddr && inet->daddr != rmt_addr) || + (inet->dport != rmt_port && inet->dport) || +- (inet->rcv_saddr && inet->rcv_saddr != loc_addr) || ++ (inet->rcv_saddr && inet->rcv_saddr != loc_addr && ++ inet->rcv_saddr2 && inet->rcv_saddr2 != loc_addr) || + ipv6_only_sock(s) || + (s->sk_bound_dev_if && s->sk_bound_dev_if != dif)) + continue; +@@ -604,6 +619,15 @@ int udp_sendmsg(struct kiocb *iocb, stru + .uli_u = { .ports = + { .sport = inet->sport, + .dport = dport } } }; ++ struct nx_info *nxi = sk->sk_nx_info; ++ ++ if (nxi) { ++ err = ip_find_src(nxi, &rt, &fl); ++ if (err) ++ goto out; ++ if (daddr == IPI_LOOPBACK && !vx_check(0, VX_ADMIN)) ++ daddr = fl.fl4_dst = nxi->ipv4[0]; ++ } + err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT)); + if (err) + goto out; +@@ -1370,8 +1394,10 @@ static struct sock *udp_get_first(struct + + for (state->bucket = 0; state->bucket < UDP_HTABLE_SIZE; ++state->bucket) { + struct hlist_node *node; ++ + sk_for_each(sk, node, &udp_hash[state->bucket]) { +- if (sk->sk_family == state->family) ++ if (sk->sk_family == state->family && ++ vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) + goto found; + } + } +@@ -1388,7 +1414,8 @@ static struct sock *udp_get_next(struct + sk = sk_next(sk); + try_again: + ; +- } while (sk && sk->sk_family != state->family); ++ } while (sk && (sk->sk_family != state->family || ++ !vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))); + + if (!sk && ++state->bucket < UDP_HTABLE_SIZE) { + sk = sk_head(&udp_hash[state->bucket]); +Index: linux-2.6.16/net/ipv6/addrconf.c +=================================================================== +--- linux-2.6.16.orig/net/ipv6/addrconf.c ++++ linux-2.6.16/net/ipv6/addrconf.c +@@ -2646,7 +2646,10 @@ static void if6_seq_stop(struct seq_file + static int if6_seq_show(struct seq_file *seq, void *v) + { + struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v; +- seq_printf(seq, ++ ++ /* no ipv6 inside a vserver for now */ ++ if (vx_check(0, VX_ADMIN|VX_WATCH)) ++ seq_printf(seq, + NIP6_SEQFMT " %02x %02x %02x %02x %8s\n", + NIP6(ifp->addr), + ifp->idev->dev->ifindex, +@@ -3002,6 +3005,10 @@ static int inet6_dump_addr(struct sk_buf + struct ifmcaddr6 *ifmca; + struct ifacaddr6 *ifaca; + ++ /* no ipv6 inside a vserver for now */ ++ if (skb->sk && skb->sk->sk_vx_info) ++ return skb->len; ++ + s_idx = cb->args[0]; + s_ip_idx = ip_idx = cb->args[1]; + read_lock(&dev_base_lock); +@@ -3207,6 +3214,10 @@ static int inet6_dump_ifinfo(struct sk_b + struct net_device *dev; + struct inet6_dev *idev; + ++ /* no ipv6 inside a vserver for now */ ++ if (skb->sk && skb->sk->sk_vx_info) ++ return skb->len; ++ + read_lock(&dev_base_lock); + for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) { + if (idx < s_idx) +Index: linux-2.6.16/net/netlink/af_netlink.c +=================================================================== +--- linux-2.6.16.orig/net/netlink/af_netlink.c ++++ linux-2.6.16/net/netlink/af_netlink.c +@@ -56,6 +56,9 @@ + #include <linux/mm.h> + #include <linux/types.h> + #include <linux/audit.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_limit.h> + + #include <net/sock.h> + #include <net/scm.h> +Index: linux-2.6.16/net/socket.c +=================================================================== +--- linux-2.6.16.orig/net/socket.c ++++ linux-2.6.16/net/socket.c +@@ -96,6 +96,7 @@ + + #include <net/sock.h> + #include <linux/netfilter.h> ++#include <linux/vs_socket.h> + + static int sock_no_open(struct inode *irrelevant, struct file *dontcare); + static ssize_t sock_aio_read(struct kiocb *iocb, char __user *buf, +@@ -536,7 +537,7 @@ static inline int __sock_sendmsg(struct + struct msghdr *msg, size_t size) + { + struct sock_iocb *si = kiocb_to_siocb(iocb); +- int err; ++ int err, len; + + si->sock = sock; + si->scm = NULL; +@@ -547,7 +548,21 @@ static inline int __sock_sendmsg(struct + if (err) + return err; + +- return sock->ops->sendmsg(iocb, sock, msg, size); ++ len = sock->ops->sendmsg(iocb, sock, msg, size); ++ if (sock->sk) { ++ if (len == size) ++ vx_sock_send(sock->sk, size); ++ else ++ vx_sock_fail(sock->sk, size); ++ } ++ vxdprintk(VXD_CBIT(net, 7), ++ "__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d", ++ sock, sock->sk, ++ (sock->sk)?sock->sk->sk_nx_info:0, ++ (sock->sk)?sock->sk->sk_vx_info:0, ++ (sock->sk)?sock->sk->sk_xid:0, ++ (unsigned int)size, len); ++ return len; + } + + int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) +@@ -585,7 +600,7 @@ int kernel_sendmsg(struct socket *sock, + static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t size, int flags) + { +- int err; ++ int err, len; + struct sock_iocb *si = kiocb_to_siocb(iocb); + + si->sock = sock; +@@ -598,7 +613,17 @@ static inline int __sock_recvmsg(struct + if (err) + return err; + +- return sock->ops->recvmsg(iocb, sock, msg, size, flags); ++ len = sock->ops->recvmsg(iocb, sock, msg, size, flags); ++ if ((len >= 0) && sock->sk) ++ vx_sock_recv(sock->sk, len); ++ vxdprintk(VXD_CBIT(net, 7), ++ "__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d", ++ sock, sock->sk, ++ (sock->sk)?sock->sk->sk_nx_info:0, ++ (sock->sk)?sock->sk->sk_vx_info:0, ++ (sock->sk)?sock->sk->sk_xid:0, ++ (unsigned int)size, len); ++ return len; + } + + int sock_recvmsg(struct socket *sock, struct msghdr *msg, +@@ -1088,6 +1113,10 @@ static int __sock_create(int family, int + if (type < 0 || type >= SOCK_MAX) + return -EINVAL; + ++ /* disable IPv6 inside vservers for now */ ++ if (family == PF_INET6 && !vx_check(0, VX_ADMIN)) ++ return -EAFNOSUPPORT; ++ + /* Compatibility. + + This uglymoron is moved from INET layer to here to avoid +@@ -1198,6 +1227,7 @@ asmlinkage long sys_socket(int family, i + if (retval < 0) + goto out; + ++ set_bit(SOCK_USER_SOCKET, &sock->flags); + retval = sock_map_fd(sock); + if (retval < 0) + goto out_release; +@@ -1228,10 +1258,12 @@ asmlinkage long sys_socketpair(int famil + err = sock_create(family, type, protocol, &sock1); + if (err < 0) + goto out; ++ set_bit(SOCK_USER_SOCKET, &sock1->flags); + + err = sock_create(family, type, protocol, &sock2); + if (err < 0) + goto out_release_1; ++ set_bit(SOCK_USER_SOCKET, &sock2->flags); + + err = sock1->ops->socketpair(sock1, sock2); + if (err < 0) +Index: linux-2.6.16/net/sunrpc/auth.c +=================================================================== +--- linux-2.6.16.orig/net/sunrpc/auth.c ++++ linux-2.6.16/net/sunrpc/auth.c +@@ -13,6 +13,7 @@ + #include <linux/errno.h> + #include <linux/sunrpc/clnt.h> + #include <linux/spinlock.h> ++#include <linux/vs_tag.h> + + #ifdef RPC_DEBUG + # define RPCDBG_FACILITY RPCDBG_AUTH +@@ -251,6 +252,7 @@ rpcauth_lookupcred(struct rpc_auth *auth + struct auth_cred acred = { + .uid = current->fsuid, + .gid = current->fsgid, ++ .tag = dx_current_tag(), + .group_info = current->group_info, + }; + struct rpc_cred *ret; +@@ -270,6 +272,7 @@ rpcauth_bindcred(struct rpc_task *task) + struct auth_cred acred = { + .uid = current->fsuid, + .gid = current->fsgid, ++ .tag = dx_current_tag(), + .group_info = current->group_info, + }; + struct rpc_cred *ret; +Index: linux-2.6.16/net/sunrpc/auth_unix.c +=================================================================== +--- linux-2.6.16.orig/net/sunrpc/auth_unix.c ++++ linux-2.6.16/net/sunrpc/auth_unix.c +@@ -11,12 +11,14 @@ + #include <linux/module.h> + #include <linux/sunrpc/clnt.h> + #include <linux/sunrpc/auth.h> ++#include <linux/vs_tag.h> + + #define NFS_NGROUPS 16 + + struct unx_cred { + struct rpc_cred uc_base; + gid_t uc_gid; ++ tag_t uc_tag; + gid_t uc_gids[NFS_NGROUPS]; + }; + #define uc_uid uc_base.cr_uid +@@ -78,6 +80,7 @@ unx_create_cred(struct rpc_auth *auth, s + if (flags & RPCAUTH_LOOKUP_ROOTCREDS) { + cred->uc_uid = 0; + cred->uc_gid = 0; ++ cred->uc_tag = dx_current_tag(); + cred->uc_gids[0] = NOGROUP; + } else { + int groups = acred->group_info->ngroups; +@@ -86,6 +89,7 @@ unx_create_cred(struct rpc_auth *auth, s + + cred->uc_uid = acred->uid; + cred->uc_gid = acred->gid; ++ cred->uc_tag = acred->tag; + for (i = 0; i < groups; i++) + cred->uc_gids[i] = GROUP_AT(acred->group_info, i); + if (i < NFS_NGROUPS) +@@ -117,7 +121,8 @@ unx_match(struct auth_cred *acred, struc + int groups; + + if (cred->uc_uid != acred->uid +- || cred->uc_gid != acred->gid) ++ || cred->uc_gid != acred->gid ++ || cred->uc_tag != acred->tag) + return 0; + + groups = acred->group_info->ngroups; +@@ -143,7 +148,7 @@ unx_marshal(struct rpc_task *task, u32 * + struct rpc_clnt *clnt = task->tk_client; + struct unx_cred *cred = (struct unx_cred *) task->tk_msg.rpc_cred; + u32 *base, *hold; +- int i; ++ int i, tag; + + *p++ = htonl(RPC_AUTH_UNIX); + base = p++; +@@ -153,9 +158,12 @@ unx_marshal(struct rpc_task *task, u32 * + * Copy the UTS nodename captured when the client was created. + */ + p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); ++ tag = task->tk_client->cl_tag; + +- *p++ = htonl((u32) cred->uc_uid); +- *p++ = htonl((u32) cred->uc_gid); ++ *p++ = htonl((u32) TAGINO_UID(tag, ++ cred->uc_uid, cred->uc_tag)); ++ *p++ = htonl((u32) TAGINO_GID(tag, ++ cred->uc_gid, cred->uc_tag)); + hold = p++; + for (i = 0; i < 16 && cred->uc_gids[i] != (gid_t) NOGROUP; i++) + *p++ = htonl((u32) cred->uc_gids[i]); +Index: linux-2.6.16/net/unix/af_unix.c +=================================================================== +--- linux-2.6.16.orig/net/unix/af_unix.c ++++ linux-2.6.16/net/unix/af_unix.c +@@ -117,6 +117,9 @@ + #include <linux/mount.h> + #include <net/checksum.h> + #include <linux/security.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_limit.h> + + int sysctl_unix_max_dgram_qlen = 10; + +@@ -235,6 +238,8 @@ static struct sock *__unix_find_socket_b + sk_for_each(s, node, &unix_socket_table[hash ^ type]) { + struct unix_sock *u = unix_sk(s); + ++ if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (u->addr->len == len && + !memcmp(u->addr->name, sunname, len)) + goto found; +@@ -781,7 +786,7 @@ static int unix_bind(struct socket *sock + */ + mode = S_IFSOCK | + (SOCK_INODE(sock)->i_mode & ~current->fs->umask); +- err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0); ++ err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0, NULL); + if (err) + goto out_mknod_dput; + mutex_unlock(&nd.dentry->d_inode->i_mutex); +Index: linux-2.6.16/net/x25/af_x25.c +=================================================================== +--- linux-2.6.16.orig/net/x25/af_x25.c ++++ linux-2.6.16/net/x25/af_x25.c +@@ -491,7 +491,10 @@ static int x25_create(struct socket *soc + + x25 = x25_sk(sk); + +- sock_init_data(sock, sk); ++ sk->sk_socket = sock; ++ sk->sk_type = sock->type; ++ sk->sk_sleep = &sock->wait; ++ sock->sk = sk; + + x25_init_timers(sk); + +Index: linux-2.6.16/security/commoncap.c +=================================================================== +--- linux-2.6.16.orig/security/commoncap.c ++++ linux-2.6.16/security/commoncap.c +@@ -143,7 +143,7 @@ void cap_bprm_apply_creds (struct linux_ + /* Derived from fs/exec.c:compute_creds. */ + kernel_cap_t new_permitted, working; + +- new_permitted = cap_intersect (bprm->cap_permitted, cap_bset); ++ new_permitted = cap_intersect (bprm->cap_permitted, vx_current_bcaps()); + working = cap_intersect (bprm->cap_inheritable, + current->cap_inheritable); + new_permitted = cap_combine (new_permitted, working); +@@ -312,7 +312,8 @@ void cap_task_reparent_to_init (struct t + + int cap_syslog (int type) + { +- if ((type != 3 && type != 10) && !capable(CAP_SYS_ADMIN)) ++ if ((type != 3 && type != 10) && ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SYSLOG)) + return -EPERM; + return 0; + } +Index: linux-2.6.16/security/dummy.c +=================================================================== +--- linux-2.6.16.orig/security/dummy.c ++++ linux-2.6.16/security/dummy.c +@@ -85,7 +85,7 @@ static int dummy_sysctl (ctl_table * tab + return 0; + } + +-static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb) ++static int dummy_quotactl (int cmds, int type, int id, struct dqhash *hash) + { + return 0; + } +Index: linux-2.6.16/security/security.c +=================================================================== +--- linux-2.6.16.orig/security/security.c ++++ linux-2.6.16/security/security.c +@@ -186,6 +186,8 @@ int mod_unreg_security(const char *name, + */ + int capable(int cap) + { ++ if (vx_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap)) ++ return 0; + if (security_ops->capable(current, cap)) { + /* capability denied */ + return 0; +@@ -196,9 +198,24 @@ int capable(int cap) + return 1; + } + ++int vx_capable(int cap, int ccap) ++{ ++ if (security_ops->capable(current, cap)) { ++ /* capability denied */ ++ return 0; ++ } ++ if (!vx_ccaps(ccap)) ++ return 0; ++ ++ /* capability granted */ ++ current->flags |= PF_SUPERPRIV; ++ return 1; ++} ++ + EXPORT_SYMBOL_GPL(register_security); + EXPORT_SYMBOL_GPL(unregister_security); + EXPORT_SYMBOL_GPL(mod_reg_security); + EXPORT_SYMBOL_GPL(mod_unreg_security); + EXPORT_SYMBOL(capable); ++EXPORT_SYMBOL(vx_capable); + EXPORT_SYMBOL(security_ops); +Index: linux-2.6.16/security/selinux/hooks.c +=================================================================== +--- linux-2.6.16.orig/security/selinux/hooks.c ++++ linux-2.6.16/security/selinux/hooks.c +@@ -1348,9 +1348,10 @@ static int selinux_sysctl(ctl_table *tab + return error; + } + +-static int selinux_quotactl(int cmds, int type, int id, struct super_block *sb) ++static int selinux_quotactl(int cmds, int type, int id, struct dqhash *hash) + { + int rc = 0; ++ struct super_block *sb = hash->dqh_sb; + + if (!sb) + return 0; |