sys-fs/zfs-kmod: fix a patch that's too large

Package-Manager: Portage-3.0.19, Repoman-3.0.3
Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

3 files changed, 4 insertions, 1233 deletions

diff --git a/sys-fs/zfs-kmod/Manifest b/sys-fs/zfs-kmod/Manifest
index 514e285239eb..272fa8bfaa34 100644
--- a/sys-fs/zfs-kmod/Manifest
+++ b/sys-fs/zfs-kmod/Manifest
@@ -2,3 +2,4 @@ DIST zfs-0.8.6.tar.gz 9295260 BLAKE2B 45424d710aaf75a05f766ae523ae157a24b5cbdcef
 DIST zfs-2.0.4.tar.gz 13123872 BLAKE2B 7e4780092c0a87d5d187cd5734ddc736574db80b500f155287640ef2230e09335cc9b6b26ec1b7d8ab1b7942673ea49a3007a81da372a6d2ac36f3908913045c SHA512 1dda92d424372bce7020f5215545485eae69211b6f0fb6bea3c7c22efac76c6a2662f0dd14a03f723b6a6fe73b1228ecca211a4034b86cf885bcadf38ba0dc6b
 DIST zfs-2.1.0-rc6.tar.gz 34777294 BLAKE2B 0080b03a9cf9717ae2bc7674e340dffafd923467368d8941df9be5a21f081e88745297e1a8b2ac5059e9f346949bbeb759a5fc8bcdb60c3be49b0645389ec8b1 SHA512 696d525c1c738a508d04366f8ffd0142aebe4498efbf129c9d38fa7c67dbec83554f55a2c4a5d7647a03ca0df173c2720fe85edbc859195f4ca19e04d2adf143
 DIST zfs-2.1.0-rc6.tar.gz.asc 195 BLAKE2B a1267b8faffc75ac70082e261c6053b2070cbad014c92051ebc82af56b21bbe2e72e01e44c0701ed255a3201330bb56b5e1a72e12c1ae9f15f72883b53c17ec6 SHA512 afc0eb839de6b0b21b3d781dd74dce9f6f668b7b9fc079ea764666e28d4d3228b8a80641b6d0084851bffedfc3406dc0f829242f6b4247d192f554ba45ce3a4c
+DIST zfs-8.0.4_5.12_compat_idmapped_mounts.patch 41410 BLAKE2B 49724351c5a8e6ffa66762d5aac84ad89a3d04022d086d9f37ccd616b3e8e95852197b5333bdeeeab54fc51516d8254d0138a4422cc66214bb602e5ed72bbabf SHA512 1554d74a7024c106a3f4814895a64914f2e3d627f7edff3c8f415b419c6a596454862f8c0984a6e2f96e340851f1a9222a4c472ebd6d5db7dc0aa108dc2dca6c
diff --git a/sys-fs/zfs-kmod/files/zfs-8.0.4_5.12_compat_idmapped_mounts.patch b/sys-fs/zfs-kmod/files/zfs-8.0.4_5.12_compat_idmapped_mounts.patch
deleted file mode 100644
index fd8b025a8fd7..000000000000
--- a/sys-fs/zfs-kmod/files/zfs-8.0.4_5.12_compat_idmapped_mounts.patch
+++ /dev/null
@@ -1,1231 +0,0 @@
-From f315d9a3ff3cc0b81c99dd9be5878a55d2e98d8e Mon Sep 17 00:00:00 2001
-From: Coleman Kane <ckane@colemankane.org>
-Date: Sat, 20 Mar 2021 00:00:59 -0400
-Subject: [PATCH] Linux 5.12 compat: idmapped mounts
-
-In Linux 5.12, the filesystem API was modified to support ipmapped
-mounts by adding a "struct user_namespace *" parameter to a number
-functions and VFS handlers. This change adds the needed autoconf
-macros to detect the new interfaces and updates the code appropriately.
-This change does not add support for idmapped mounts, instead it
-preserves the existing behavior by passing the initial user namespace
-where needed.  A subsequent commit will be required to add support
-for idmapped mounted.
-
-Reviewed-by: Tony Hutter <hutter2@llnl.gov>
-Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
-Signed-off-by: Coleman Kane <ckane@colemankane.org>
-Closes #11712
-(cherry picked from commit e2a8296131e94ad785f5564156ed2db1fdb2e080)
-Signed-off-by: Jonathon Fernyhough <jonathon@m2x.dev>
----
- config/kernel-generic_fillattr.m4            | 28 +++++++
- config/kernel-inode-create.m4                | 43 +++++++++--
- config/kernel-inode-getattr.m4               | 63 +++++++++++++---
- config/kernel-is_owner_or_cap.m4             | 23 +++++-
- config/kernel-mkdir-umode-t.m4               | 32 --------
- config/kernel-mkdir.m4                       | 65 ++++++++++++++++
- config/kernel-mknod.m4                       | 30 ++++++++
- config/kernel-rename.m4                      | 50 ++++++++++---
- config/kernel-setattr-prepare.m4             | 45 ++++++++---
- config/kernel-symlink.m4                     | 30 ++++++++
- config/kernel-xattr-handler.m4               | 78 +++++++++++++-------
- config/kernel.m4                             | 18 +++--
- include/os/linux/kernel/linux/vfs_compat.h   | 24 +++++-
- include/os/linux/kernel/linux/xattr_compat.h | 17 ++++-
- include/os/linux/zfs/sys/zfs_vnops_os.h      |  3 +-
- include/os/linux/zfs/sys/zpl.h               | 18 +++++
- module/os/linux/zfs/policy.c                 |  2 +-
- module/os/linux/zfs/zfs_vnops_os.c           |  5 +-
- module/os/linux/zfs/zpl_ctldir.c             | 51 ++++++++++++-
- module/os/linux/zfs/zpl_file.c               |  2 +-
- module/os/linux/zfs/zpl_inode.c              | 49 +++++++++++-
- module/os/linux/zfs/zpl_xattr.c              |  4 +-
- 22 files changed, 557 insertions(+), 123 deletions(-)
- create mode 100644 config/kernel-generic_fillattr.m4
- delete mode 100644 config/kernel-mkdir-umode-t.m4
- create mode 100644 config/kernel-mkdir.m4
- create mode 100644 config/kernel-mknod.m4
- create mode 100644 config/kernel-symlink.m4
-
-diff --git a/config/kernel-generic_fillattr.m4 b/config/kernel-generic_fillattr.m4
-new file mode 100644
-index 00000000000..50c8031305b
---- /dev/null
-+++ b/config/kernel-generic_fillattr.m4
-@@ -0,0 +1,28 @@
-+dnl #
-+dnl # 5.12 API
-+dnl #
-+dnl # generic_fillattr in linux/fs.h now requires a struct user_namespace*
-+dnl # as the first arg, to support idmapped mounts.
-+dnl #
-+AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS], [
-+	ZFS_LINUX_TEST_SRC([generic_fillattr_userns], [
-+		#include <linux/fs.h>
-+	],[
-+		struct user_namespace *userns = NULL;
-+		struct inode *in = NULL;
-+		struct kstat *k = NULL;
-+		generic_fillattr(userns, in, k);
-+	])
-+])
-+
-+AC_DEFUN([ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS], [
-+	AC_MSG_CHECKING([whether generic_fillattr requres struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT([generic_fillattr_userns], [
-+		AC_MSG_RESULT([yes])
-+		AC_DEFINE(HAVE_GENERIC_FILLATTR_USERNS, 1,
-+		    [generic_fillattr requires struct user_namespace*])
-+	],[
-+		AC_MSG_RESULT([no])
-+	])
-+])
-+
-diff --git a/config/kernel-inode-create.m4 b/config/kernel-inode-create.m4
-index 9f28bcbd4f7..a6ea11fb61b 100644
---- a/config/kernel-inode-create.m4
-+++ b/config/kernel-inode-create.m4
-@@ -1,7 +1,25 @@
--dnl #
--dnl # 3.6 API change
--dnl #
--AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE_FLAGS], [
-+AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE], [
-+	dnl #
-+	dnl # 5.12 API change that added the struct user_namespace* arg
-+	dnl # to the front of this function type's arg list.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([create_userns], [
-+		#include <linux/fs.h>
-+		#include <linux/sched.h>
-+
-+		int inode_create(struct user_namespace *userns,
-+		    struct inode *inode ,struct dentry *dentry,
-+		    umode_t umode, bool flag) { return 0; }
-+
-+		static const struct inode_operations
-+			iops __attribute__ ((unused)) = {
-+			.create		= inode_create,
-+		};
-+	],[])
-+
-+	dnl #
-+	dnl # 3.6 API change
-+	dnl #
- 	ZFS_LINUX_TEST_SRC([create_flags], [
- 		#include <linux/fs.h>
- 		#include <linux/sched.h>
-@@ -16,11 +34,20 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE_FLAGS], [
- 	],[])
- ])
- 
--AC_DEFUN([ZFS_AC_KERNEL_CREATE_FLAGS], [
--	AC_MSG_CHECKING([whether iops->create() passes flags])
--	ZFS_LINUX_TEST_RESULT([create_flags], [
-+AC_DEFUN([ZFS_AC_KERNEL_CREATE], [
-+	AC_MSG_CHECKING([whether iops->create() takes struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT([create_userns], [
- 		AC_MSG_RESULT(yes)
-+		AC_DEFINE(HAVE_IOPS_CREATE_USERNS, 1,
-+		   [iops->create() takes struct user_namespace*])
- 	],[
--		ZFS_LINUX_TEST_ERROR([iops->create()])
-+		AC_MSG_RESULT(no)
-+
-+		AC_MSG_CHECKING([whether iops->create() passes flags])
-+		ZFS_LINUX_TEST_RESULT([create_flags], [
-+			AC_MSG_RESULT(yes)
-+		],[
-+			ZFS_LINUX_TEST_ERROR([iops->create()])
-+		])
- 	])
- ])
-diff --git a/config/kernel-inode-getattr.m4 b/config/kernel-inode-getattr.m4
-index 48391d66f8b..f62e82f5230 100644
---- a/config/kernel-inode-getattr.m4
-+++ b/config/kernel-inode-getattr.m4
-@@ -1,8 +1,29 @@
--dnl #
--dnl # Linux 4.11 API
--dnl # See torvalds/linux@a528d35
--dnl #
- AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
-+	dnl #
-+	dnl # Linux 5.12 API
-+	dnl # The getattr I/O operations handler type was extended to require
-+	dnl # a struct user_namespace* as its first arg, to support idmapped
-+	dnl # mounts.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([inode_operations_getattr_userns], [
-+		#include <linux/fs.h>
-+
-+		int test_getattr(
-+			struct user_namespace *userns,
-+		    const struct path *p, struct kstat *k,
-+		    u32 request_mask, unsigned int query_flags)
-+		    { return 0; }
-+
-+		static const struct inode_operations
-+		    iops __attribute__ ((unused)) = {
-+			.getattr = test_getattr,
-+		};
-+	],[])
-+
-+	dnl #
-+	dnl # Linux 4.11 API
-+	dnl # See torvalds/linux@a528d35
-+	dnl #
- 	ZFS_LINUX_TEST_SRC([inode_operations_getattr_path], [
- 		#include <linux/fs.h>
- 
-@@ -33,21 +54,39 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
- ])
- 
- AC_DEFUN([ZFS_AC_KERNEL_INODE_GETATTR], [
--	AC_MSG_CHECKING([whether iops->getattr() takes a path])
--	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
-+	dnl #
-+	dnl # Kernel 5.12 test
-+	dnl #
-+	AC_MSG_CHECKING([whether iops->getattr() takes user_namespace])
-+	ZFS_LINUX_TEST_RESULT([inode_operations_getattr_userns], [
- 		AC_MSG_RESULT(yes)
--		AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
--		    [iops->getattr() takes a path])
-+		AC_DEFINE(HAVE_USERNS_IOPS_GETATTR, 1,
-+		    [iops->getattr() takes struct user_namespace*])
- 	],[
- 		AC_MSG_RESULT(no)
- 
--		AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
--		ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
-+		dnl #
-+		dnl # Kernel 4.11 test
-+		dnl #
-+		AC_MSG_CHECKING([whether iops->getattr() takes a path])
-+		ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
- 			AC_MSG_RESULT(yes)
--			AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
--			    [iops->getattr() takes a vfsmount])
-+			AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
-+				[iops->getattr() takes a path])
- 		],[
- 			AC_MSG_RESULT(no)
-+
-+			dnl #
-+			dnl # Kernel < 4.11 test
-+			dnl #
-+			AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
-+			ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
-+				AC_MSG_RESULT(yes)
-+				AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
-+					[iops->getattr() takes a vfsmount])
-+			],[
-+				AC_MSG_RESULT(no)
-+			])
- 		])
- 	])
- ])
-diff --git a/config/kernel-is_owner_or_cap.m4 b/config/kernel-is_owner_or_cap.m4
-index 3df6163da27..3c3c6ad2240 100644
---- a/config/kernel-is_owner_or_cap.m4
-+++ b/config/kernel-is_owner_or_cap.m4
-@@ -11,13 +11,32 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE], [
- 		struct inode *ip = NULL;
- 		(void) inode_owner_or_capable(ip);
- 	])
-+
-+	ZFS_LINUX_TEST_SRC([inode_owner_or_capable_idmapped], [
-+		#include <linux/fs.h>
-+	],[
-+		struct inode *ip = NULL;
-+		(void) inode_owner_or_capable(&init_user_ns, ip);
-+	])
- ])
- 
- AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
- 	AC_MSG_CHECKING([whether inode_owner_or_capable() exists])
- 	ZFS_LINUX_TEST_RESULT([inode_owner_or_capable], [
- 		AC_MSG_RESULT(yes)
--	],[
--		ZFS_LINUX_TEST_ERROR([capability])
-+		AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
-+		    [inode_owner_or_capable() exists])
-+	], [
-+		AC_MSG_RESULT(no)
-+
-+		AC_MSG_CHECKING(
-+		    [whether inode_owner_or_capable() takes user_ns])
-+		ZFS_LINUX_TEST_RESULT([inode_owner_or_capable_idmapped], [
-+			AC_MSG_RESULT(yes)
-+			AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE_IDMAPPED, 1,
-+			    [inode_owner_or_capable() takes user_ns])
-+		],[
-+			ZFS_LINUX_TEST_ERROR([capability])
-+		])
- 	])
- ])
-diff --git a/config/kernel-mkdir-umode-t.m4 b/config/kernel-mkdir-umode-t.m4
-deleted file mode 100644
-index 19599670df3..00000000000
---- a/config/kernel-mkdir-umode-t.m4
-+++ /dev/null
-@@ -1,32 +0,0 @@
--dnl #
--dnl # 3.3 API change
--dnl # The VFS .create, .mkdir and .mknod callbacks were updated to take a
--dnl # umode_t type rather than an int.  The expectation is that any backport
--dnl # would also change all three prototypes.  However, if it turns out that
--dnl # some distribution doesn't backport the whole thing this could be
--dnl # broken apart into three separate checks.
--dnl #
--AC_DEFUN([ZFS_AC_KERNEL_SRC_MKDIR_UMODE_T], [
--	ZFS_LINUX_TEST_SRC([inode_operations_mkdir], [
--		#include <linux/fs.h>
--
--		int mkdir(struct inode *inode, struct dentry *dentry,
--		    umode_t umode) { return 0; }
--
--		static const struct inode_operations
--		    iops __attribute__ ((unused)) = {
--			.mkdir = mkdir,
--		};
--	],[])
--])
--
--AC_DEFUN([ZFS_AC_KERNEL_MKDIR_UMODE_T], [
--	AC_MSG_CHECKING([whether iops->create()/mkdir()/mknod() take umode_t])
--	ZFS_LINUX_TEST_RESULT([inode_operations_mkdir], [
--		AC_MSG_RESULT(yes)
--		AC_DEFINE(HAVE_MKDIR_UMODE_T, 1,
--		    [iops->create()/mkdir()/mknod() take umode_t])
--	],[
--		ZFS_LINUX_TEST_ERROR([mkdir()])
--	])
--])
-diff --git a/config/kernel-mkdir.m4 b/config/kernel-mkdir.m4
-new file mode 100644
-index 00000000000..a162bcd880f
---- /dev/null
-+++ b/config/kernel-mkdir.m4
-@@ -0,0 +1,65 @@
-+dnl #
-+dnl # Supported mkdir() interfaces checked newest to oldest.
-+dnl #
-+AC_DEFUN([ZFS_AC_KERNEL_SRC_MKDIR], [
-+	dnl #
-+	dnl # 5.12 API change
-+	dnl # The struct user_namespace arg was added as the first argument to
-+	dnl # mkdir()
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([mkdir_user_namespace], [
-+		#include <linux/fs.h>
-+
-+		int mkdir(struct user_namespace *userns,
-+			struct inode *inode, struct dentry *dentry,
-+		    umode_t umode) { return 0; }
-+
-+		static const struct inode_operations
-+		    iops __attribute__ ((unused)) = {
-+			.mkdir = mkdir,
-+		};
-+	],[])
-+
-+	dnl #
-+	dnl # 3.3 API change
-+	dnl # The VFS .create, .mkdir and .mknod callbacks were updated to take a
-+	dnl # umode_t type rather than an int.  The expectation is that any backport
-+	dnl # would also change all three prototypes.  However, if it turns out that
-+	dnl # some distribution doesn't backport the whole thing this could be
-+	dnl # broken apart into three separate checks.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([inode_operations_mkdir], [
-+		#include <linux/fs.h>
-+
-+		int mkdir(struct inode *inode, struct dentry *dentry,
-+		    umode_t umode) { return 0; }
-+
-+		static const struct inode_operations
-+		    iops __attribute__ ((unused)) = {
-+			.mkdir = mkdir,
-+		};
-+	],[])
-+])
-+
-+AC_DEFUN([ZFS_AC_KERNEL_MKDIR], [
-+	dnl #
-+	dnl # 5.12 API change
-+	dnl # The struct user_namespace arg was added as the first argument to
-+	dnl # mkdir() of the iops structure.
-+	dnl #
-+	AC_MSG_CHECKING([whether iops->mkdir() takes struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT([mkdir_user_namespace], [
-+		AC_MSG_RESULT(yes)
-+		AC_DEFINE(HAVE_IOPS_MKDIR_USERNS, 1,
-+		    [iops->mkdir() takes struct user_namespace*])
-+	],[
-+		AC_MSG_CHECKING([whether iops->mkdir() takes umode_t])
-+		ZFS_LINUX_TEST_RESULT([inode_operations_mkdir], [
-+			AC_MSG_RESULT(yes)
-+			AC_DEFINE(HAVE_MKDIR_UMODE_T, 1,
-+			    [iops->mkdir() takes umode_t])
-+		],[
-+			ZFS_LINUX_TEST_ERROR([mkdir()])
-+		])
-+	])
-+])
-diff --git a/config/kernel-mknod.m4 b/config/kernel-mknod.m4
-new file mode 100644
-index 00000000000..ffe45106003
---- /dev/null
-+++ b/config/kernel-mknod.m4
-@@ -0,0 +1,30 @@
-+AC_DEFUN([ZFS_AC_KERNEL_SRC_MKNOD], [
-+	dnl #
-+	dnl # 5.12 API change that added the struct user_namespace* arg
-+	dnl # to the front of this function type's arg list.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([mknod_userns], [
-+		#include <linux/fs.h>
-+		#include <linux/sched.h>
-+
-+		int tmp_mknod(struct user_namespace *userns,
-+		    struct inode *inode ,struct dentry *dentry,
-+		    umode_t u, dev_t d) { return 0; }
-+
-+		static const struct inode_operations
-+			iops __attribute__ ((unused)) = {
-+			.mknod		= tmp_mknod,
-+		};
-+	],[])
-+])
-+
-+AC_DEFUN([ZFS_AC_KERNEL_MKNOD], [
-+	AC_MSG_CHECKING([whether iops->mknod() takes struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT([mknod_userns], [
-+		AC_MSG_RESULT(yes)
-+		AC_DEFINE(HAVE_IOPS_MKNOD_USERNS, 1,
-+		    [iops->mknod() takes struct user_namespace*])
-+	],[
-+		AC_MSG_RESULT(no)
-+	])
-+])
-diff --git a/config/kernel-rename.m4 b/config/kernel-rename.m4
-index f707391539d..31d199f33bb 100644
---- a/config/kernel-rename.m4
-+++ b/config/kernel-rename.m4
-@@ -1,10 +1,10 @@
--dnl #
--dnl # 4.9 API change,
--dnl # iops->rename2() merged into iops->rename(), and iops->rename() now wants
--dnl # flags.
--dnl #
--AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME_WANTS_FLAGS], [
--	ZFS_LINUX_TEST_SRC([inode_operations_rename], [
-+AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME], [
-+	dnl #
-+	dnl # 4.9 API change,
-+	dnl # iops->rename2() merged into iops->rename(), and iops->rename() now wants
-+	dnl # flags.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([inode_operations_rename_flags], [
- 		#include <linux/fs.h>
- 		int rename_fn(struct inode *sip, struct dentry *sdp,
- 			struct inode *tip, struct dentry *tdp,
-@@ -15,15 +15,41 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME_WANTS_FLAGS], [
- 			.rename = rename_fn,
- 		};
- 	],[])
-+
-+	dnl #
-+	dnl # 5.12 API change,
-+	dnl #
-+	dnl # Linux 5.12 introduced passing struct user_namespace* as the first argument
-+	dnl # of the rename() and other inode_operations members.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([inode_operations_rename_userns], [
-+		#include <linux/fs.h>
-+		int rename_fn(struct user_namespace *user_ns, struct inode *sip,
-+			struct dentry *sdp, struct inode *tip, struct dentry *tdp,
-+			unsigned int flags) { return 0; }
-+
-+		static const struct inode_operations
-+		    iops __attribute__ ((unused)) = {
-+			.rename = rename_fn,
-+		};
-+	],[])
- ])
- 
--AC_DEFUN([ZFS_AC_KERNEL_RENAME_WANTS_FLAGS], [
--	AC_MSG_CHECKING([whether iops->rename() wants flags])
--	ZFS_LINUX_TEST_RESULT([inode_operations_rename], [
-+AC_DEFUN([ZFS_AC_KERNEL_RENAME], [
-+	AC_MSG_CHECKING([whether iops->rename() takes struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT([inode_operations_rename_userns], [
- 		AC_MSG_RESULT(yes)
--		AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1,
--		    [iops->rename() wants flags])
-+		AC_DEFINE(HAVE_IOPS_RENAME_USERNS, 1,
-+		    [iops->rename() takes struct user_namespace*])
- 	],[
- 		AC_MSG_RESULT(no)
-+
-+		ZFS_LINUX_TEST_RESULT([inode_operations_rename_flags], [
-+			AC_MSG_RESULT(yes)
-+			AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1,
-+				[iops->rename() wants flags])
-+		],[
-+			AC_MSG_RESULT(no)
-+		])
- 	])
- ])
-diff --git a/config/kernel-setattr-prepare.m4 b/config/kernel-setattr-prepare.m4
-index 45408c45c69..24245aa5344 100644
---- a/config/kernel-setattr-prepare.m4
-+++ b/config/kernel-setattr-prepare.m4
-@@ -1,27 +1,52 @@
--dnl #
--dnl # 4.9 API change
--dnl # The inode_change_ok() function has been renamed setattr_prepare()
--dnl # and updated to take a dentry rather than an inode.
--dnl #
- AC_DEFUN([ZFS_AC_KERNEL_SRC_SETATTR_PREPARE], [
-+	dnl #
-+	dnl # 4.9 API change
-+	dnl # The inode_change_ok() function has been renamed setattr_prepare()
-+	dnl # and updated to take a dentry rather than an inode.
-+	dnl #
- 	ZFS_LINUX_TEST_SRC([setattr_prepare], [
- 		#include <linux/fs.h>
- 	], [
- 		struct dentry *dentry = NULL;
- 		struct iattr *attr = NULL;
- 		int error __attribute__ ((unused)) =
--		    setattr_prepare(dentry, attr);
-+			setattr_prepare(dentry, attr);
-+	])
-+
-+	dnl #
-+	dnl # 5.12 API change
-+	dnl # The setattr_prepare() function has been changed to accept a new argument
-+	dnl # for struct user_namespace*
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([setattr_prepare_userns], [
-+		#include <linux/fs.h>
-+	], [
-+		struct dentry *dentry = NULL;
-+		struct iattr *attr = NULL;
-+		struct user_namespace *userns = NULL;
-+		int error __attribute__ ((unused)) =
-+			setattr_prepare(userns, dentry, attr);
- 	])
- ])
- 
- AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE], [
--	AC_MSG_CHECKING([whether setattr_prepare() is available])
--	ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
-+	AC_MSG_CHECKING([whether setattr_prepare() is available and accepts struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare_userns],
- 	    [setattr_prepare], [fs/attr.c], [
- 		AC_MSG_RESULT(yes)
--		AC_DEFINE(HAVE_SETATTR_PREPARE, 1,
--		    [setattr_prepare() is available])
-+		AC_DEFINE(HAVE_SETATTR_PREPARE_USERNS, 1,
-+		    [setattr_prepare() accepts user_namespace])
- 	], [
- 		AC_MSG_RESULT(no)
-+
-+		AC_MSG_CHECKING([whether setattr_prepare() is available, doesn't accept user_namespace])
-+		ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
-+			[setattr_prepare], [fs/attr.c], [
-+			AC_MSG_RESULT(yes)
-+			AC_DEFINE(HAVE_SETATTR_PREPARE_NO_USERNS, 1,
-+				[setattr_prepare() is available, doesn't accept user_namespace])
-+		], [
-+			AC_MSG_RESULT(no)
-+		])
- 	])
- ])
-diff --git a/config/kernel-symlink.m4 b/config/kernel-symlink.m4
-new file mode 100644
-index 00000000000..d90366d04b7
---- /dev/null
-+++ b/config/kernel-symlink.m4
-@@ -0,0 +1,30 @@
-+AC_DEFUN([ZFS_AC_KERNEL_SRC_SYMLINK], [
-+	dnl #
-+	dnl # 5.12 API change that added the struct user_namespace* arg
-+	dnl # to the front of this function type's arg list.
-+	dnl #
-+	ZFS_LINUX_TEST_SRC([symlink_userns], [
-+		#include <linux/fs.h>
-+		#include <linux/sched.h>
-+
-+		int tmp_symlink(struct user_namespace *userns,
-+		    struct inode *inode ,struct dentry *dentry,
-+		    const char *path) { return 0; }
-+
-+		static const struct inode_operations
-+			iops __attribute__ ((unused)) = {
-+			.symlink		= tmp_symlink,
-+		};
-+	],[])
-+])
-+
-+AC_DEFUN([ZFS_AC_KERNEL_SYMLINK], [
-+	AC_MSG_CHECKING([whether iops->symlink() takes struct user_namespace*])
-+	ZFS_LINUX_TEST_RESULT([symlink_userns], [
-+		AC_MSG_RESULT(yes)
-+		AC_DEFINE(HAVE_IOPS_SYMLINK_USERNS, 1,
-+		    [iops->symlink() takes struct user_namespace*])
-+	],[
-+		AC_MSG_RESULT(no)
-+	])
-+])
-diff --git a/config/kernel-xattr-handler.m4 b/config/kernel-xattr-handler.m4
-index 137bf4a8aff..00b1e74a9cc 100644
---- a/config/kernel-xattr-handler.m4
-+++ b/config/kernel-xattr-handler.m4
-@@ -152,6 +152,21 @@ dnl #
- dnl # Supported xattr handler set() interfaces checked newest to oldest.
- dnl #
- AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_SET], [
-+	ZFS_LINUX_TEST_SRC([xattr_handler_set_userns], [
-+		#include <linux/xattr.h>
-+
-+		int set(const struct xattr_handler *handler,
-+			struct user_namespace *mnt_userns,
-+			struct dentry *dentry, struct inode *inode,
-+			const char *name, const void *buffer,
-+			size_t size, int flags)
-+			{ return 0; }
-+		static const struct xattr_handler
-+			xops __attribute__ ((unused)) = {
-+			.set = set,
-+		};
-+	],[])
-+
- 	ZFS_LINUX_TEST_SRC([xattr_handler_set_dentry_inode], [
- 		#include <linux/xattr.h>
- 
-@@ -194,45 +209,58 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_SET], [
- 
- AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [
- 	dnl #
--	dnl # 4.7 API change,
--	dnl # The xattr_handler->set() callback was changed to take both
--	dnl # dentry and inode.
-+	dnl # 5.12 API change,
-+	dnl # The xattr_handler->set() callback was changed to 8 arguments, and
-+	dnl # struct user_namespace* was inserted as arg #2
- 	dnl #
--	AC_MSG_CHECKING([whether xattr_handler->set() wants dentry and inode])
--	ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry_inode], [
-+	AC_MSG_CHECKING([whether xattr_handler->set() wants dentry, inode, and user_namespace])
-+	ZFS_LINUX_TEST_RESULT([xattr_handler_set_userns], [
- 		AC_MSG_RESULT(yes)
--		AC_DEFINE(HAVE_XATTR_SET_DENTRY_INODE, 1,
--		    [xattr_handler->set() wants both dentry and inode])
-+		AC_DEFINE(HAVE_XATTR_SET_USERNS, 1,
-+		    [xattr_handler->set() takes user_namespace])
- 	],[
- 		dnl #
--		dnl # 4.4 API change,
--		dnl # The xattr_handler->set() callback was changed to take a
--		dnl # xattr_handler, and handler_flags argument was removed and
--		dnl # should be accessed by handler->flags.
-+		dnl # 4.7 API change,
-+		dnl # The xattr_handler->set() callback was changed to take both
-+		dnl # dentry and inode.
- 		dnl #
- 		AC_MSG_RESULT(no)
--		AC_MSG_CHECKING(
--		    [whether xattr_handler->set() wants xattr_handler])
--		ZFS_LINUX_TEST_RESULT([xattr_handler_set_xattr_handler], [
-+		AC_MSG_CHECKING([whether xattr_handler->set() wants dentry and inode])
-+		ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry_inode], [
- 			AC_MSG_RESULT(yes)
--			AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
--			    [xattr_handler->set() wants xattr_handler])
-+			AC_DEFINE(HAVE_XATTR_SET_DENTRY_INODE, 1,
-+			    [xattr_handler->set() wants both dentry and inode])
- 		],[
- 			dnl #
--			dnl # 2.6.33 API change,
--			dnl # The xattr_handler->set() callback was changed
--			dnl # to take a dentry instead of an inode, and a
--			dnl # handler_flags argument was added.
-+			dnl # 4.4 API change,
-+			dnl # The xattr_handler->set() callback was changed to take a
-+			dnl # xattr_handler, and handler_flags argument was removed and
-+			dnl # should be accessed by handler->flags.
- 			dnl #
- 			AC_MSG_RESULT(no)
- 			AC_MSG_CHECKING(
--			    [whether xattr_handler->set() wants dentry])
--			ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry], [
-+			    [whether xattr_handler->set() wants xattr_handler])
-+			ZFS_LINUX_TEST_RESULT([xattr_handler_set_xattr_handler], [
- 				AC_MSG_RESULT(yes)
--				AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
--				    [xattr_handler->set() wants dentry])
-+				AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
-+				    [xattr_handler->set() wants xattr_handler])
- 			],[
--				ZFS_LINUX_TEST_ERROR([xattr set()])
-+				dnl #
-+				dnl # 2.6.33 API change,
-+				dnl # The xattr_handler->set() callback was changed
-+				dnl # to take a dentry instead of an inode, and a
-+				dnl # handler_flags argument was added.
-+				dnl #
-+				AC_MSG_RESULT(no)
-+				AC_MSG_CHECKING(
-+				    [whether xattr_handler->set() wants dentry])
-+				ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry], [
-+					AC_MSG_RESULT(yes)
-+					AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
-+					    [xattr_handler->set() wants dentry])
-+				],[
-+					ZFS_LINUX_TEST_ERROR([xattr set()])
-+				])
- 			])
- 		])
- 	])
-diff --git a/config/kernel.m4 b/config/kernel.m4
-index 55620b3daa8..51c7fb926ec 100644
---- a/config/kernel.m4
-+++ b/config/kernel.m4
-@@ -79,9 +79,9 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
- 	ZFS_AC_KERNEL_SRC_EVICT_INODE
- 	ZFS_AC_KERNEL_SRC_DIRTY_INODE
- 	ZFS_AC_KERNEL_SRC_SHRINKER
--	ZFS_AC_KERNEL_SRC_MKDIR_UMODE_T
-+	ZFS_AC_KERNEL_SRC_MKDIR
- 	ZFS_AC_KERNEL_SRC_LOOKUP_FLAGS
--	ZFS_AC_KERNEL_SRC_CREATE_FLAGS
-+	ZFS_AC_KERNEL_SRC_CREATE
- 	ZFS_AC_KERNEL_SRC_GET_LINK
- 	ZFS_AC_KERNEL_SRC_PUT_LINK
- 	ZFS_AC_KERNEL_SRC_TMPFILE
-@@ -115,7 +115,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
- 	ZFS_AC_KERNEL_SRC_KUIDGID_T
- 	ZFS_AC_KERNEL_SRC_KUID_HELPERS
- 	ZFS_AC_KERNEL_SRC_MODULE_PARAM_CALL_CONST
--	ZFS_AC_KERNEL_SRC_RENAME_WANTS_FLAGS
-+	ZFS_AC_KERNEL_SRC_RENAME
- 	ZFS_AC_KERNEL_SRC_CURRENT_TIME
- 	ZFS_AC_KERNEL_SRC_USERNS_CAPABILITIES
- 	ZFS_AC_KERNEL_SRC_IN_COMPAT_SYSCALL
-@@ -124,6 +124,9 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
- 	ZFS_AC_KERNEL_SRC_TOTALHIGH_PAGES
- 	ZFS_AC_KERNEL_SRC_KSTRTOUL
- 	ZFS_AC_KERNEL_SRC_PERCPU
-+	ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS
-+	ZFS_AC_KERNEL_SRC_MKNOD
-+	ZFS_AC_KERNEL_SRC_SYMLINK
- 
- 	AC_MSG_CHECKING([for available kernel interfaces])
- 	ZFS_LINUX_TEST_COMPILE_ALL([kabi])
-@@ -176,9 +179,9 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
- 	ZFS_AC_KERNEL_EVICT_INODE
- 	ZFS_AC_KERNEL_DIRTY_INODE
- 	ZFS_AC_KERNEL_SHRINKER
--	ZFS_AC_KERNEL_MKDIR_UMODE_T
-+	ZFS_AC_KERNEL_MKDIR
- 	ZFS_AC_KERNEL_LOOKUP_FLAGS
--	ZFS_AC_KERNEL_CREATE_FLAGS
-+	ZFS_AC_KERNEL_CREATE
- 	ZFS_AC_KERNEL_GET_LINK
- 	ZFS_AC_KERNEL_PUT_LINK
- 	ZFS_AC_KERNEL_TMPFILE
-@@ -212,7 +215,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
- 	ZFS_AC_KERNEL_KUIDGID_T
- 	ZFS_AC_KERNEL_KUID_HELPERS
- 	ZFS_AC_KERNEL_MODULE_PARAM_CALL_CONST
--	ZFS_AC_KERNEL_RENAME_WANTS_FLAGS
-+	ZFS_AC_KERNEL_RENAME
- 	ZFS_AC_KERNEL_CURRENT_TIME
- 	ZFS_AC_KERNEL_USERNS_CAPABILITIES
- 	ZFS_AC_KERNEL_IN_COMPAT_SYSCALL
-@@ -221,6 +224,9 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
- 	ZFS_AC_KERNEL_TOTALHIGH_PAGES
- 	ZFS_AC_KERNEL_KSTRTOUL
- 	ZFS_AC_KERNEL_PERCPU
-+	ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS
-+	ZFS_AC_KERNEL_MKNOD
-+	ZFS_AC_KERNEL_SYMLINK
- ])
- 
- dnl #
-diff --git a/include/os/linux/kernel/linux/vfs_compat.h b/include/os/linux/kernel/linux/vfs_compat.h
-index c35e80d31cd..91e908598fb 100644
---- a/include/os/linux/kernel/linux/vfs_compat.h
-+++ b/include/os/linux/kernel/linux/vfs_compat.h
-@@ -343,7 +343,8 @@ static inline void zfs_gid_write(struct inode *ip, gid_t gid)
- /*
-  * 4.9 API change
-  */
--#ifndef HAVE_SETATTR_PREPARE
-+#if !(defined(HAVE_SETATTR_PREPARE_NO_USERNS) || \
-+    defined(HAVE_SETATTR_PREPARE_USERNS))
- static inline int
- setattr_prepare(struct dentry *dentry, struct iattr *ia)
- {
-@@ -389,6 +390,15 @@ func(const struct path *path, struct kstat *stat, u32 request_mask,	\
- {									\
- 	return (func##_impl(path, stat, request_mask, query_flags));	\
- }
-+#elif defined(HAVE_USERNS_IOPS_GETATTR)
-+#define	ZPL_GETATTR_WRAPPER(func)					\
-+static int								\
-+func(struct user_namespace *user_ns, const struct path *path,	\
-+    struct kstat *stat, u32 request_mask, unsigned int query_flags)	\
-+{									\
-+	return (func##_impl(user_ns, path, stat, request_mask, \
-+	    query_flags));	\
-+}
- #else
- #error
- #endif
-@@ -436,4 +446,16 @@ zpl_is_32bit_api(void)
- #endif
- }
- 
-+/*
-+ * 5.12 API change
-+ * To support id-mapped mounts, generic_fillattr() was modified to
-+ * accept a new struct user_namespace* as its first arg.
-+ */
-+#ifdef HAVE_GENERIC_FILLATTR_USERNS
-+#define	zpl_generic_fillattr(user_ns, ip, sp)	\
-+    generic_fillattr(user_ns, ip, sp)
-+#else
-+#define	zpl_generic_fillattr(user_ns, ip, sp)	generic_fillattr(ip, sp)
-+#endif
-+
- #endif /* _ZFS_VFS_H */
-diff --git a/include/os/linux/kernel/linux/xattr_compat.h b/include/os/linux/kernel/linux/xattr_compat.h
-index 8348e99198a..54690727eab 100644
---- a/include/os/linux/kernel/linux/xattr_compat.h
-+++ b/include/os/linux/kernel/linux/xattr_compat.h
-@@ -119,12 +119,27 @@ fn(struct dentry *dentry, const char *name, void *buffer, size_t size,	\
- #error "Unsupported kernel"
- #endif
- 
-+/*
-+ * 5.12 API change,
-+ * The xattr_handler->set() callback was changed to take the
-+ * struct user_namespace* as the first arg, to support idmapped
-+ * mounts.
-+ */
-+#if defined(HAVE_XATTR_SET_USERNS)
-+#define	ZPL_XATTR_SET_WRAPPER(fn)					\
-+static int								\
-+fn(const struct xattr_handler *handler, struct user_namespace *user_ns, \
-+    struct dentry *dentry, struct inode *inode, const char *name,	\
-+    const void *buffer, size_t size, int flags)	\
-+{									\
-+	return (__ ## fn(inode, name, buffer, size, flags));		\
-+}
- /*
-  * 4.7 API change,
-  * The xattr_handler->set() callback was changed to take a both dentry and
-  * inode, because the dentry might not be attached to an inode yet.
-  */
--#if defined(HAVE_XATTR_SET_DENTRY_INODE)
-+#elif defined(HAVE_XATTR_SET_DENTRY_INODE)
- #define	ZPL_XATTR_SET_WRAPPER(fn)					\
- static int								\
- fn(const struct xattr_handler *handler, struct dentry *dentry,		\
-diff --git a/include/os/linux/zfs/sys/zfs_vnops_os.h b/include/os/linux/zfs/sys/zfs_vnops_os.h
-index 1c9cdf7bf8f..ba83f5dd83d 100644
---- a/include/os/linux/zfs/sys/zfs_vnops_os.h
-+++ b/include/os/linux/zfs/sys/zfs_vnops_os.h
-@@ -56,7 +56,8 @@ extern int zfs_mkdir(znode_t *dzp, char *dirname, vattr_t *vap,
- extern int zfs_rmdir(znode_t *dzp, char *name, znode_t *cwd,
-     cred_t *cr, int flags);
- extern int zfs_readdir(struct inode *ip, zpl_dir_context_t *ctx, cred_t *cr);
--extern int zfs_getattr_fast(struct inode *ip, struct kstat *sp);
-+extern int zfs_getattr_fast(struct user_namespace *, struct inode *ip,
-+	struct kstat *sp);
- extern int zfs_setattr(znode_t *zp, vattr_t *vap, int flag, cred_t *cr);
- extern int zfs_rename(znode_t *sdzp, char *snm, znode_t *tdzp,
-     char *tnm, cred_t *cr, int flags);
-diff --git a/include/os/linux/zfs/sys/zpl.h b/include/os/linux/zfs/sys/zpl.h
-index b0bb9c29c0b..21825d1f378 100644
---- a/include/os/linux/zfs/sys/zpl.h
-+++ b/include/os/linux/zfs/sys/zpl.h
-@@ -171,4 +171,22 @@ zpl_dir_emit_dots(struct file *file, zpl_dir_context_t *ctx)
- 	timespec_trunc(ts, (ip)->i_sb->s_time_gran)
- #endif
- 
-+#if defined(HAVE_INODE_OWNER_OR_CAPABLE)
-+#define	zpl_inode_owner_or_capable(ns, ip)	inode_owner_or_capable(ip)
-+#elif defined(HAVE_INODE_OWNER_OR_CAPABLE_IDMAPPED)
-+#define	zpl_inode_owner_or_capable(ns, ip)	inode_owner_or_capable(ns, ip)
-+#else
-+#error "Unsupported kernel"
-+#endif
-+
-+#ifdef HAVE_SETATTR_PREPARE_USERNS
-+#define	zpl_setattr_prepare(ns, dentry, ia)	setattr_prepare(ns, dentry, ia)
-+#else
-+/*
-+ * Use kernel-provided version, or our own from
-+ * linux/vfs_compat.h
-+ */
-+#define	zpl_setattr_prepare(ns, dentry, ia)	setattr_prepare(dentry, ia)
-+#endif
-+
- #endif	/* _SYS_ZPL_H */
-diff --git a/module/os/linux/zfs/policy.c b/module/os/linux/zfs/policy.c
-index 8780d7f6c70..bbccb2e572d 100644
---- a/module/os/linux/zfs/policy.c
-+++ b/module/os/linux/zfs/policy.c
-@@ -124,7 +124,7 @@ secpolicy_vnode_any_access(const cred_t *cr, struct inode *ip, uid_t owner)
- 	if (crgetfsuid(cr) == owner)
- 		return (0);
- 
--	if (inode_owner_or_capable(ip))
-+	if (zpl_inode_owner_or_capable(kcred->user_ns, ip))
- 		return (0);
- 
- #if defined(CONFIG_USER_NS)
-diff --git a/module/os/linux/zfs/zfs_vnops_os.c b/module/os/linux/zfs/zfs_vnops_os.c
-index 7484d651c1f..ce0701763fd 100644
---- a/module/os/linux/zfs/zfs_vnops_os.c
-+++ b/module/os/linux/zfs/zfs_vnops_os.c
-@@ -1907,7 +1907,8 @@ zfs_readdir(struct inode *ip, zpl_dir_context_t *ctx, cred_t *cr)
-  */
- /* ARGSUSED */
- int
--zfs_getattr_fast(struct inode *ip, struct kstat *sp)
-+zfs_getattr_fast(struct user_namespace *user_ns, struct inode *ip,
-+    struct kstat *sp)
- {
- 	znode_t *zp = ITOZ(ip);
- 	zfsvfs_t *zfsvfs = ITOZSB(ip);
-@@ -1919,7 +1920,7 @@ zfs_getattr_fast(struct inode *ip, struct kstat *sp)
- 
- 	mutex_enter(&zp->z_lock);
- 
--	generic_fillattr(ip, sp);
-+	zpl_generic_fillattr(user_ns, ip, sp);
- 	/*
- 	 * +1 link count for root inode with visible '.zfs' directory.
- 	 */
-diff --git a/module/os/linux/zfs/zpl_ctldir.c b/module/os/linux/zfs/zpl_ctldir.c
-index e6420f19ed8..9b526afd000 100644
---- a/module/os/linux/zfs/zpl_ctldir.c
-+++ b/module/os/linux/zfs/zpl_ctldir.c
-@@ -101,12 +101,22 @@ zpl_root_readdir(struct file *filp, void *dirent, filldir_t filldir)
-  */
- /* ARGSUSED */
- static int
-+#ifdef HAVE_USERNS_IOPS_GETATTR
-+zpl_root_getattr_impl(struct user_namespace *user_ns,
-+    const struct path *path, struct kstat *stat, u32 request_mask,
-+    unsigned int query_flags)
-+#else
- zpl_root_getattr_impl(const struct path *path, struct kstat *stat,
-     u32 request_mask, unsigned int query_flags)
-+#endif
- {
- 	struct inode *ip = path->dentry->d_inode;
- 
-+#if defined(HAVE_GENERIC_FILLATTR_USERNS) && defined(HAVE_USERNS_IOPS_GETATTR)
-+	generic_fillattr(user_ns, ip, stat);
-+#else
- 	generic_fillattr(ip, stat);
-+#endif
- 	stat->atime = current_time(ip);
- 
- 	return (0);
-@@ -290,8 +300,14 @@ zpl_snapdir_readdir(struct file *filp, void *dirent, filldir_t filldir)
- #endif /* !HAVE_VFS_ITERATE && !HAVE_VFS_ITERATE_SHARED */
- 
- static int
-+#ifdef HAVE_IOPS_RENAME_USERNS
-+zpl_snapdir_rename2(struct user_namespace *user_ns, struct inode *sdip,
-+    struct dentry *sdentry, struct inode *tdip, struct dentry *tdentry,
-+    unsigned int flags)
-+#else
- zpl_snapdir_rename2(struct inode *sdip, struct dentry *sdentry,
-     struct inode *tdip, struct dentry *tdentry, unsigned int flags)
-+#endif
- {
- 	cred_t *cr = CRED();
- 	int error;
-@@ -309,7 +325,7 @@ zpl_snapdir_rename2(struct inode *sdip, struct dentry *sdentry,
- 	return (error);
- }
- 
--#ifndef HAVE_RENAME_WANTS_FLAGS
-+#if !defined(HAVE_RENAME_WANTS_FLAGS) && !defined(HAVE_IOPS_RENAME_USERNS)
- static int
- zpl_snapdir_rename(struct inode *sdip, struct dentry *sdentry,
-     struct inode *tdip, struct dentry *tdentry)
-@@ -333,7 +349,12 @@ zpl_snapdir_rmdir(struct inode *dip, struct dentry *dentry)
- }
- 
- static int
-+#ifdef HAVE_IOPS_MKDIR_USERNS
-+zpl_snapdir_mkdir(struct user_namespace *user_ns, struct inode *dip,
-+    struct dentry *dentry, umode_t mode)
-+#else
- zpl_snapdir_mkdir(struct inode *dip, struct dentry *dentry, umode_t mode)
-+#endif
- {
- 	cred_t *cr = CRED();
- 	vattr_t *vap;
-@@ -363,14 +384,24 @@ zpl_snapdir_mkdir(struct inode *dip, struct dentry *dentry, umode_t mode)
-  */
- /* ARGSUSED */
- static int
-+#ifdef HAVE_USERNS_IOPS_GETATTR
-+zpl_snapdir_getattr_impl(struct user_namespace *user_ns,
-+    const struct path *path, struct kstat *stat, u32 request_mask,
-+    unsigned int query_flags)
-+#else
- zpl_snapdir_getattr_impl(const struct path *path, struct kstat *stat,
-     u32 request_mask, unsigned int query_flags)
-+#endif
- {
- 	struct inode *ip = path->dentry->d_inode;
- 	zfsvfs_t *zfsvfs = ITOZSB(ip);
- 
- 	ZPL_ENTER(zfsvfs);
-+#if defined(HAVE_GENERIC_FILLATTR_USERNS) && defined(HAVE_USERNS_IOPS_GETATTR)
-+	generic_fillattr(user_ns, ip, stat);
-+#else
- 	generic_fillattr(ip, stat);
-+#endif
- 
- 	stat->nlink = stat->size = 2;
- 	stat->ctime = stat->mtime = dmu_objset_snap_cmtime(zfsvfs->z_os);
-@@ -408,7 +439,7 @@ const struct file_operations zpl_fops_snapdir = {
- const struct inode_operations zpl_ops_snapdir = {
- 	.lookup		= zpl_snapdir_lookup,
- 	.getattr	= zpl_snapdir_getattr,
--#ifdef HAVE_RENAME_WANTS_FLAGS
-+#if defined(HAVE_RENAME_WANTS_FLAGS) || defined(HAVE_IOPS_RENAME_USERNS)
- 	.rename		= zpl_snapdir_rename2,
- #else
- 	.rename		= zpl_snapdir_rename,
-@@ -495,8 +526,14 @@ zpl_shares_readdir(struct file *filp, void *dirent, filldir_t filldir)
- 
- /* ARGSUSED */
- static int
-+#ifdef HAVE_USERNS_IOPS_GETATTR
-+zpl_shares_getattr_impl(struct user_namespace *user_ns,
-+    const struct path *path, struct kstat *stat, u32 request_mask,
-+    unsigned int query_flags)
-+#else
- zpl_shares_getattr_impl(const struct path *path, struct kstat *stat,
-     u32 request_mask, unsigned int query_flags)
-+#endif
- {
- 	struct inode *ip = path->dentry->d_inode;
- 	zfsvfs_t *zfsvfs = ITOZSB(ip);
-@@ -506,7 +543,11 @@ zpl_shares_getattr_impl(const struct path *path, struct kstat *stat,
- 	ZPL_ENTER(zfsvfs);
- 
- 	if (zfsvfs->z_shares_dir == 0) {
-+#if defined(HAVE_GENERIC_FILLATTR_USERNS) && defined(HAVE_USERNS_IOPS_GETATTR)
-+		generic_fillattr(user_ns, path->dentry->d_inode, stat);
-+#else
- 		generic_fillattr(path->dentry->d_inode, stat);
-+#endif
- 		stat->nlink = stat->size = 2;
- 		stat->atime = current_time(ip);
- 		ZPL_EXIT(zfsvfs);
-@@ -515,7 +556,11 @@ zpl_shares_getattr_impl(const struct path *path, struct kstat *stat,
- 
- 	error = -zfs_zget(zfsvfs, zfsvfs->z_shares_dir, &dzp);
- 	if (error == 0) {
--		error = -zfs_getattr_fast(ZTOI(dzp), stat);
-+#if defined(HAVE_GENERIC_FILLATTR_USERNS) && defined(HAVE_USERNS_IOPS_GETATTR)
-+		error = -zfs_getattr_fast(user_ns, ZTOI(dzp), stat);
-+#else
-+		error = -zfs_getattr_fast(kcred->user_ns, ZTOI(dzp), stat);
-+#endif
- 		iput(ZTOI(dzp));
- 	}
- 
-diff --git a/module/os/linux/zfs/zpl_file.c b/module/os/linux/zfs/zpl_file.c
-index 80762f9669b..08bf97ff338 100644
---- a/module/os/linux/zfs/zpl_file.c
-+++ b/module/os/linux/zfs/zpl_file.c
-@@ -869,7 +869,7 @@ __zpl_ioctl_setflags(struct inode *ip, uint32_t ioctl_flags, xvattr_t *xva)
- 	    !capable(CAP_LINUX_IMMUTABLE))
- 		return (-EACCES);
- 
--	if (!inode_owner_or_capable(ip))
-+	if (!zpl_inode_owner_or_capable(kcred->user_ns, ip))
- 		return (-EACCES);
- 
- 	xva_init(xva);
-diff --git a/module/os/linux/zfs/zpl_inode.c b/module/os/linux/zfs/zpl_inode.c
-index f336fbb1272..364b9fbef24 100644
---- a/module/os/linux/zfs/zpl_inode.c
-+++ b/module/os/linux/zfs/zpl_inode.c
-@@ -128,7 +128,12 @@ zpl_vap_init(vattr_t *vap, struct inode *dir, umode_t mode, cred_t *cr)
- }
- 
- static int
-+#ifdef HAVE_IOPS_CREATE_USERNS
-+zpl_create(struct user_namespace *user_ns, struct inode *dir,
-+    struct dentry *dentry, umode_t mode, bool flag)
-+#else
- zpl_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool flag)
-+#endif
- {
- 	cred_t *cr = CRED();
- 	znode_t *zp;
-@@ -163,7 +168,12 @@ zpl_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool flag)
- }
- 
- static int
-+#ifdef HAVE_IOPS_MKNOD_USERNS
-+zpl_mknod(struct user_namespace *user_ns, struct inode *dir,
-+    struct dentry *dentry, umode_t mode,
-+#else
- zpl_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
-+#endif
-     dev_t rdev)
- {
- 	cred_t *cr = CRED();
-@@ -278,7 +288,12 @@ zpl_unlink(struct inode *dir, struct dentry *dentry)
- }
- 
- static int
-+#ifdef HAVE_IOPS_MKDIR_USERNS
-+zpl_mkdir(struct user_namespace *user_ns, struct inode *dir,
-+    struct dentry *dentry, umode_t mode)
-+#else
- zpl_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
-+#endif
- {
- 	cred_t *cr = CRED();
- 	vattr_t *vap;
-@@ -338,8 +353,14 @@ zpl_rmdir(struct inode *dir, struct dentry *dentry)
- }
- 
- static int
-+#ifdef HAVE_USERNS_IOPS_GETATTR
-+zpl_getattr_impl(struct user_namespace *user_ns,
-+    const struct path *path, struct kstat *stat, u32 request_mask,
-+    unsigned int query_flags)
-+#else
- zpl_getattr_impl(const struct path *path, struct kstat *stat, u32 request_mask,
-     unsigned int query_flags)
-+#endif
- {
- 	int error;
- 	fstrans_cookie_t cookie;
-@@ -350,7 +371,11 @@ zpl_getattr_impl(const struct path *path, struct kstat *stat, u32 request_mask,
- 	 * XXX request_mask and query_flags currently ignored.
- 	 */
- 
--	error = -zfs_getattr_fast(path->dentry->d_inode, stat);
-+#ifdef HAVE_USERNS_IOPS_GETATTR
-+	error = -zfs_getattr_fast(user_ns, path->dentry->d_inode, stat);
-+#else
-+	error = -zfs_getattr_fast(kcred->user_ns, path->dentry->d_inode, stat);
-+#endif
- 	spl_fstrans_unmark(cookie);
- 	ASSERT3S(error, <=, 0);
- 
-@@ -359,7 +384,12 @@ zpl_getattr_impl(const struct path *path, struct kstat *stat, u32 request_mask,
- ZPL_GETATTR_WRAPPER(zpl_getattr);
- 
- static int
-+#ifdef HAVE_SETATTR_PREPARE_USERNS
-+zpl_setattr(struct user_namespace *user_ns, struct dentry *dentry,
-+    struct iattr *ia)
-+#else
- zpl_setattr(struct dentry *dentry, struct iattr *ia)
-+#endif
- {
- 	struct inode *ip = dentry->d_inode;
- 	cred_t *cr = CRED();
-@@ -367,7 +397,7 @@ zpl_setattr(struct dentry *dentry, struct iattr *ia)
- 	int error;
- 	fstrans_cookie_t cookie;
- 
--	error = setattr_prepare(dentry, ia);
-+	error = zpl_setattr_prepare(kcred->user_ns, dentry, ia);
- 	if (error)
- 		return (error);
- 
-@@ -399,8 +429,14 @@ zpl_setattr(struct dentry *dentry, struct iattr *ia)
- }
- 
- static int
-+#ifdef HAVE_IOPS_RENAME_USERNS
-+zpl_rename2(struct user_namespace *user_ns, struct inode *sdip,
-+    struct dentry *sdentry, struct inode *tdip, struct dentry *tdentry,
-+    unsigned int flags)
-+#else
- zpl_rename2(struct inode *sdip, struct dentry *sdentry,
-     struct inode *tdip, struct dentry *tdentry, unsigned int flags)
-+#endif
- {
- 	cred_t *cr = CRED();
- 	int error;
-@@ -421,7 +457,7 @@ zpl_rename2(struct inode *sdip, struct dentry *sdentry,
- 	return (error);
- }
- 
--#ifndef HAVE_RENAME_WANTS_FLAGS
-+#if !defined(HAVE_RENAME_WANTS_FLAGS) && !defined(HAVE_IOPS_RENAME_USERNS)
- static int
- zpl_rename(struct inode *sdip, struct dentry *sdentry,
-     struct inode *tdip, struct dentry *tdentry)
-@@ -431,7 +467,12 @@ zpl_rename(struct inode *sdip, struct dentry *sdentry,
- #endif
- 
- static int
-+#ifdef HAVE_IOPS_SYMLINK_USERNS
-+zpl_symlink(struct user_namespace *user_ns, struct inode *dir,
-+    struct dentry *dentry, const char *name)
-+#else
- zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
-+#endif
- {
- 	cred_t *cr = CRED();
- 	vattr_t *vap;
-@@ -677,7 +718,7 @@ const struct inode_operations zpl_dir_inode_operations = {
- 	.mkdir		= zpl_mkdir,
- 	.rmdir		= zpl_rmdir,
- 	.mknod		= zpl_mknod,
--#ifdef HAVE_RENAME_WANTS_FLAGS
-+#if defined(HAVE_RENAME_WANTS_FLAGS) || defined(HAVE_IOPS_RENAME_USERNS)
- 	.rename		= zpl_rename2,
- #else
- 	.rename		= zpl_rename,
-diff --git a/module/os/linux/zfs/zpl_xattr.c b/module/os/linux/zfs/zpl_xattr.c
-index 1ec3dae2bb8..5e35f90df85 100644
---- a/module/os/linux/zfs/zpl_xattr.c
-+++ b/module/os/linux/zfs/zpl_xattr.c
-@@ -1233,7 +1233,7 @@ __zpl_xattr_acl_set_access(struct inode *ip, const char *name,
- 	if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIX)
- 		return (-EOPNOTSUPP);
- 
--	if (!inode_owner_or_capable(ip))
-+	if (!zpl_inode_owner_or_capable(kcred->user_ns, ip))
- 		return (-EPERM);
- 
- 	if (value) {
-@@ -1273,7 +1273,7 @@ __zpl_xattr_acl_set_default(struct inode *ip, const char *name,
- 	if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIX)
- 		return (-EOPNOTSUPP);
- 
--	if (!inode_owner_or_capable(ip))
-+	if (!zpl_inode_owner_or_capable(kcred->user_ns, ip))
- 		return (-EPERM);
- 
- 	if (value) {
diff --git a/sys-fs/zfs-kmod/zfs-kmod-2.0.4-r1.ebuild b/sys-fs/zfs-kmod/zfs-kmod-2.0.4-r1.ebuild
index 636c4c76d07f..18391c3ffa91 100644
--- a/sys-fs/zfs-kmod/zfs-kmod-2.0.4-r1.ebuild
+++ b/sys-fs/zfs-kmod/zfs-kmod-2.0.4-r1.ebuild
@@ -13,7 +13,8 @@ if [[ ${PV} == "9999" ]]; then
 	EGIT_REPO_URI="https://github.com/openzfs/zfs.git"
 else
 	MY_PV="${PV/_rc/-rc}"
-	SRC_URI="https://github.com/openzfs/zfs/releases/download/zfs-${MY_PV}/zfs-${MY_PV}.tar.gz"
+	SRC_URI="https://github.com/openzfs/zfs/releases/download/zfs-${MY_PV}/zfs-${MY_PV}.tar.gz
+		https://github.com/openzfs/zfs/commit/f315d9a3ff3cc0b81c99dd9be5878a55d2e98d8e.patch -> zfs-8.0.4_5.12_compat_idmapped_mounts.patch"
 	KEYWORDS="~amd64 ~arm64 ~ppc64"
 	S="${WORKDIR}/zfs-${PV%_rc?}"
 	ZFS_KERNEL_COMPAT="5.12"
@@ -54,7 +55,7 @@ pkg_pretend() {
 }
 
 PATCHES=(
-	"${FILESDIR}"/zfs-8.0.4_5.12_compat_idmapped_mounts.patch
+	"${DISTDIR}"/zfs-8.0.4_5.12_compat_idmapped_mounts.patch
 	"${FILESDIR}"/zfs-8.0.4_5.12_compat_bio_max_segs.patch
 	"${FILESDIR}"/zfs-8.0.4_5.12_compat_tmpfile.patch
 	"${FILESDIR}"/zfs-8.0.4_5.12_compat_userns.patch