Merge tag 'vfs-6.17-rc1.fileattr' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

57fcb7d9 · Linus Torvalds <[email protected]> · 2025-07-28 15:24:14 -07:00

Pull fileattr updates from Christian Brauner:
 "This introduces the new file_getattr() and file_setattr() system calls
  after lengthy discussions.

  Both system calls serve as successors and extensible companions to
  the FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR system calls which have
  started to show their age in addition to being named in a way that
  makes it easy to conflate them with extended attribute related
  operations.

  These syscalls allow userspace to set filesystem inode attributes on
  special files. One of the usage examples is the XFS quota projects.

  XFS has project quotas which could be attached to a directory. All new
  inodes in these directories inherit project ID set on parent
  directory.

  The project is created from userspace by opening and calling
  FS_IOC_FSSETXATTR on each inode. This is not possible for special
  files such as FIFO, SOCK, BLK etc. Therefore, some inodes are left
  with empty project ID. Those inodes then are not shown in the quota
  accounting but still exist in the directory. This is not critical but
  in the case when special files are created in the directory with
  already existing project quota, these new inodes inherit extended
  attributes. This creates a mix of special files with and without
  attributes. Moreover, special files with attributes don't have a
  possibility to become clear or change the attributes. This, in turn,
  prevents userspace from re-creating quota project on these existing
  files.

  In addition, these new system calls allow the implementation of
  additional attributes that we couldn't or didn't want to fit into the
  legacy ioctls anymore"

* tag 'vfs-6.17-rc1.fileattr' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: tighten a sanity check in file_attr_to_fileattr()
  tree-wide: s/struct fileattr/struct file_kattr/g
  fs: introduce file_getattr and file_setattr syscalls
  fs: prepare for extending file_get/setattr()
  fs: make vfs_fileattr_[get|set] return -EOPNOTSUPP
  selinux: implement inode_file_[g|s]etattr hooks
  lsm: introduce new hooks for setting/getting inode fsxattr
  fs: split fileattr related helpers into separate file

Commit: 57fcb7d930d8f00f383e995aeebdcd2b416a187a
Parents: cec40a7c · e85931d1

Merge commit. Changes below are compared with the first parent: cec40a7c.

Changes

64 files changed · +752 −410

File	Status	Add	Del	Content
Documentation/filesystems/locking.rst	modified	+2	−2	View file
Documentation/filesystems/vfs.rst	modified	+2	−2	View file
arch/alpha/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/arm/tools/syscall.tbl	modified	+2	−0	View file
arch/arm64/tools/syscall_32.tbl	modified	+2	−0	View file
arch/m68k/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/microblaze/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/mips/kernel/syscalls/syscall_n32.tbl	modified	+2	−0	View file
arch/mips/kernel/syscalls/syscall_n64.tbl	modified	+2	−0	View file
arch/mips/kernel/syscalls/syscall_o32.tbl	modified	+2	−0	View file
arch/parisc/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/powerpc/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/s390/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/sh/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/sparc/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
arch/x86/entry/syscalls/syscall_32.tbl	modified	+2	−0	View file
arch/x86/entry/syscalls/syscall_64.tbl	modified	+2	−0	View file
arch/xtensa/kernel/syscalls/syscall.tbl	modified	+2	−0	View file
fs/Makefile	modified	+2	−1	View file
fs/bcachefs/fs.c	modified	+2	−2	View file
fs/btrfs/ioctl.c	modified	+2	−2	View file
fs/btrfs/ioctl.h	modified	+3	−3	View file
fs/ecryptfs/inode.c	modified	+2	−2	View file
fs/efivarfs/inode.c	modified	+2	−2	View file
fs/ext2/ext2.h	modified	+2	−2	View file
fs/ext2/ioctl.c	modified	+2	−2	View file
fs/ext4/ext4.h	modified	+2	−2	View file
fs/ext4/ioctl.c	modified	+2	−2	View file
fs/f2fs/f2fs.h	modified	+2	−2	View file
fs/f2fs/file.c	modified	+2	−2	View file
fs/file_attr.c	added	+498	−0	View file
fs/fuse/fuse_i.h	modified	+2	−2	View file
fs/fuse/ioctl.c	modified	+6	−2	View file
fs/gfs2/file.c	modified	+2	−2	View file
fs/gfs2/inode.h	modified	+2	−2	View file
fs/hfsplus/hfsplus_fs.h	modified	+2	−2	View file
fs/hfsplus/inode.c	modified	+2	−2	View file
fs/ioctl.c	modified	+0	−309	View file
fs/jfs/ioctl.c	modified	+2	−2	View file
fs/jfs/jfs_inode.h	modified	+2	−2	View file
fs/nilfs2/ioctl.c	modified	+2	−2	View file
fs/nilfs2/nilfs.h	modified	+2	−2	View file
fs/ocfs2/ioctl.c	modified	+2	−2	View file
fs/ocfs2/ioctl.h	modified	+2	−2	View file
fs/orangefs/inode.c	modified	+2	−2	View file
fs/overlayfs/copy_up.c	modified	+3	−3	View file
fs/overlayfs/inode.c	modified	+7	−10	View file
fs/overlayfs/overlayfs.h	modified	+5	−5	View file
fs/overlayfs/util.c	modified	+1	−1	View file
fs/ubifs/ioctl.c	modified	+2	−2	View file
fs/ubifs/ubifs.h	modified	+2	−2	View file
fs/xfs/xfs_ioctl.c	modified	+9	−9	View file
fs/xfs/xfs_ioctl.h	modified	+2	−2	View file
include/linux/fileattr.h	modified	+31	−7	View file
include/linux/fs.h	modified	+3	−3	View file
include/linux/lsm_hook_defs.h	modified	+2	−0	View file
include/linux/security.h	modified	+16	−0	View file
include/linux/syscalls.h	modified	+7	−0	View file
include/uapi/asm-generic/unistd.h	modified	+7	−1	View file
include/uapi/linux/fs.h	modified	+18	−0	View file
mm/shmem.c	modified	+2	−2	View file
scripts/syscall.tbl	modified	+2	−0	View file
security/security.c	modified	+30	−0	View file
security/selinux/hooks.c	modified	+14	−0	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/filesystems/locking.rst

View file

diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst
index 5805812..aa287cc 100644
--- a/Documentation/filesystems/locking.rst
+++ b/Documentation/filesystems/locking.rst
@@ -87,8 +87,8 @@ prototypes::
 	int (*tmpfile) (struct mnt_idmap *, struct inode *,
 			struct file *, umode_t);
 	int (*fileattr_set)(struct mnt_idmap *idmap,
-			    struct dentry *dentry, struct fileattr *fa);
-	int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa);
+			    struct dentry *dentry, struct file_kattr *fa);
+	int (*fileattr_get)(struct dentry *dentry, struct file_kattr *fa);
 	struct posix_acl * (*get_acl)(struct mnt_idmap *, struct dentry *, int);
 	struct offset_ctx *(*get_offset_ctx)(struct inode *inode);
 

Documentation/filesystems/vfs.rst

View file

diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst
index d154d6f..486a916 100644
--- a/Documentation/filesystems/vfs.rst
+++ b/Documentation/filesystems/vfs.rst
@@ -515,8 +515,8 @@ As of kernel 2.6.22, the following members are defined:
 		struct posix_acl * (*get_acl)(struct mnt_idmap *, struct dentry *, int);
 	        int (*set_acl)(struct mnt_idmap *, struct dentry *, struct posix_acl *, int);
 		int (*fileattr_set)(struct mnt_idmap *idmap,
-				    struct dentry *dentry, struct fileattr *fa);
-		int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa);
+				    struct dentry *dentry, struct file_kattr *fa);
+		int (*fileattr_get)(struct dentry *dentry, struct file_kattr *fa);
 	        struct offset_ctx *(*get_offset_ctx)(struct inode *inode);
 	};
 

arch/alpha/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index 2dd6340..16dca28 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -507,3 +507,5 @@
 575	common	listxattrat			sys_listxattrat
 576	common	removexattrat			sys_removexattrat
 577	common	open_tree_attr			sys_open_tree_attr
+578	common	file_getattr			sys_file_getattr
+579	common	file_setattr			sys_file_setattr

arch/arm/tools/syscall.tbl

View file

diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index 27c1d5e..b07e699 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -482,3 +482,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/arm64/tools/syscall_32.tbl

View file

diff --git a/arch/arm64/tools/syscall_32.tbl b/arch/arm64/tools/syscall_32.tbl
index 0765b3a..8d9088b 100644
--- a/arch/arm64/tools/syscall_32.tbl
+++ b/arch/arm64/tools/syscall_32.tbl
@@ -479,3 +479,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/m68k/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index 9fe4711..f41d38d 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -467,3 +467,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/microblaze/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 7b6e978..580af57 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -473,3 +473,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/mips/kernel/syscalls/syscall_n32.tbl

View file

diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index aa70e37..d824ffe 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -406,3 +406,5 @@
 465	n32	listxattrat			sys_listxattrat
 466	n32	removexattrat			sys_removexattrat
 467	n32	open_tree_attr			sys_open_tree_attr
+468	n32	file_getattr			sys_file_getattr
+469	n32	file_setattr			sys_file_setattr

arch/mips/kernel/syscalls/syscall_n64.tbl

View file

diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 1e8c44c..7a7049c 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -382,3 +382,5 @@
 465	n64	listxattrat			sys_listxattrat
 466	n64	removexattrat			sys_removexattrat
 467	n64	open_tree_attr			sys_open_tree_attr
+468	n64	file_getattr			sys_file_getattr
+469	n64	file_setattr			sys_file_setattr

arch/mips/kernel/syscalls/syscall_o32.tbl

View file

diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 114a5a1..d330274 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -455,3 +455,5 @@
 465	o32	listxattrat			sys_listxattrat
 466	o32	removexattrat			sys_removexattrat
 467	o32	open_tree_attr			sys_open_tree_attr
+468	o32	file_getattr			sys_file_getattr
+469	o32	file_setattr			sys_file_setattr

arch/parisc/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 94df3cb..88a788a 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -466,3 +466,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/powerpc/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 9a084bd..b453e80 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -558,3 +558,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/s390/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index a4569b9..8a6744d 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -470,3 +470,5 @@
 465  common	listxattrat		sys_listxattrat			sys_listxattrat
 466  common	removexattrat		sys_removexattrat		sys_removexattrat
 467  common	open_tree_attr		sys_open_tree_attr		sys_open_tree_attr
+468  common	file_getattr		sys_file_getattr		sys_file_getattr
+469  common	file_setattr		sys_file_setattr		sys_file_setattr

arch/sh/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index 52a7652..5e9c9ef 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -471,3 +471,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/sparc/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 83e45eb..ebb7d06 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -513,3 +513,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

arch/x86/entry/syscalls/syscall_32.tbl

View file

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ac007ea..4877e16 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -473,3 +473,5 @@
 465	i386	listxattrat		sys_listxattrat
 466	i386	removexattrat		sys_removexattrat
 467	i386	open_tree_attr		sys_open_tree_attr
+468	i386	file_getattr		sys_file_getattr
+469	i386	file_setattr		sys_file_setattr

arch/x86/entry/syscalls/syscall_64.tbl

View file

diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index cfb5ca4..92cf0fe 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -391,6 +391,8 @@
 465	common	listxattrat		sys_listxattrat
 466	common	removexattrat		sys_removexattrat
 467	common	open_tree_attr		sys_open_tree_attr
+468	common	file_getattr		sys_file_getattr
+469	common	file_setattr		sys_file_setattr
 
 #
 # Due to a historical design error, certain syscalls are numbered differently

arch/xtensa/kernel/syscalls/syscall.tbl

View file

diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index f657a77..374e4cb 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -438,3 +438,5 @@
 465	common	listxattrat			sys_listxattrat
 466	common	removexattrat			sys_removexattrat
 467	common	open_tree_attr			sys_open_tree_attr
+468	common	file_getattr			sys_file_getattr
+469	common	file_setattr			sys_file_setattr

fs/Makefile

View file

diff --git a/fs/Makefile b/fs/Makefile
index 79c08b9..334654f 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -15,7 +15,8 @@ obj-y :=	open.o read_write.o file_table.o super.o \
 		pnode.o splice.o sync.o utimes.o d_path.o \
 		stack.o fs_struct.o statfs.o fs_pin.o nsfs.o \
 		fs_types.o fs_context.o fs_parser.o fsopen.o init.o \
-		kernel_read_file.o mnt_idmapping.o remap_range.o pidfs.o
+		kernel_read_file.o mnt_idmapping.o remap_range.o pidfs.o \
+		file_attr.o
 
 obj-$(CONFIG_BUFFER_HEAD)	+= buffer.o mpage.o
 obj-$(CONFIG_PROC_FS)		+= proc_namespace.o

fs/bcachefs/fs.c

View file

diff --git a/fs/bcachefs/fs.c b/fs/bcachefs/fs.c
index 1591190..687af0e 100644
--- a/fs/bcachefs/fs.c
+++ b/fs/bcachefs/fs.c
@@ -1617,7 +1617,7 @@ static const __maybe_unused unsigned bch_flags_to_xflags[] = {
 };
 
 static int bch2_fileattr_get(struct dentry *dentry,
-			     struct fileattr *fa)
+			     struct file_kattr *fa)
 {
 	struct bch_inode_info *inode = to_bch_ei(d_inode(dentry));
 	struct bch_fs *c = inode->v.i_sb->s_fs_info;
@@ -1680,7 +1680,7 @@ static int fssetxattr_inode_update_fn(struct btree_trans *trans,
 
 static int bch2_fileattr_set(struct mnt_idmap *idmap,
 			     struct dentry *dentry,
-			     struct fileattr *fa)
+			     struct file_kattr *fa)
 {
 	struct bch_inode_info *inode = to_bch_ei(d_inode(dentry));
 	struct bch_fs *c = inode->v.i_sb->s_fs_info;

fs/btrfs/ioctl.c

View file

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index bf561be..895009b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -245,7 +245,7 @@ static int btrfs_check_ioctl_vol_args2_subvol_name(const struct btrfs_ioctl_vol_
  * Set flags/xflags from the internal inode flags. The remaining items of
  * fsxattr are zeroed.
  */
-int btrfs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
+int btrfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
 {
 	const struct btrfs_inode *inode = BTRFS_I(d_inode(dentry));
 
@@ -254,7 +254,7 @@ int btrfs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
 }
 
 int btrfs_fileattr_set(struct mnt_idmap *idmap,
-		       struct dentry *dentry, struct fileattr *fa)
+		       struct dentry *dentry, struct file_kattr *fa)
 {
 	struct btrfs_inode *inode = BTRFS_I(d_inode(dentry));
 	struct btrfs_root *root = inode->root;

fs/btrfs/ioctl.h

View file

diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
index e08ea44..ccf6bed 100644
--- a/fs/btrfs/ioctl.h
+++ b/fs/btrfs/ioctl.h
@@ -8,7 +8,7 @@
 struct file;
 struct dentry;
 struct mnt_idmap;
-struct fileattr;
+struct file_kattr;
 struct io_uring_cmd;
 struct btrfs_inode;
 struct btrfs_fs_info;
@@ -16,9 +16,9 @@ struct btrfs_ioctl_balance_args;
 
 long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-int btrfs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
+int btrfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa);
 int btrfs_fileattr_set(struct mnt_idmap *idmap,
-		       struct dentry *dentry, struct fileattr *fa);
+		       struct dentry *dentry, struct file_kattr *fa);
 int btrfs_ioctl_get_supported_features(void __user *arg);
 void btrfs_sync_inode_flags_to_i_flags(struct btrfs_inode *inode);
 void btrfs_update_ioctl_balance_args(struct btrfs_fs_info *fs_info,

fs/ecryptfs/inode.c

View file

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index bd317d9..72fbe13 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1124,13 +1124,13 @@ out:
 	return rc;
 }
 
-static int ecryptfs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
+static int ecryptfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
 {
 	return vfs_fileattr_get(ecryptfs_dentry_to_lower(dentry), fa);
 }
 
 static int ecryptfs_fileattr_set(struct mnt_idmap *idmap,
-				 struct dentry *dentry, struct fileattr *fa)
+				 struct dentry *dentry, struct file_kattr *fa)
 {
 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
 	int rc;

fs/efivarfs/inode.c

View file

diff --git a/fs/efivarfs/inode.c b/fs/efivarfs/inode.c
index 98a7299..2891614 100644
--- a/fs/efivarfs/inode.c
+++ b/fs/efivarfs/inode.c
@@ -138,7 +138,7 @@ const struct inode_operations efivarfs_dir_inode_operations = {
 };
 
 static int
-efivarfs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
+efivarfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
 {
 	unsigned int i_flags;
 	unsigned int flags = 0;
@@ -154,7 +154,7 @@ efivarfs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
 
 static int
 efivarfs_fileattr_set(struct mnt_idmap *idmap,
-		      struct dentry *dentry, struct fileattr *fa)
+		      struct dentry *dentry, struct file_kattr *fa)
 {
 	unsigned int i_flags = 0;
 

fs/ext2/ext2.h

View file

diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 4025f87..cf97b76 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -750,9 +750,9 @@ extern int ext2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		       u64 start, u64 len);
 
 /* ioctl.c */
-extern int ext2_fileattr_get(struct dentry *dentry, struct fileattr *fa);
+extern int ext2_fileattr_get(struct dentry *dentry, struct file_kattr *fa);
 extern int ext2_fileattr_set(struct mnt_idmap *idmap,
-			     struct dentry *dentry, struct fileattr *fa);
+			     struct dentry *dentry, struct file_kattr *fa);
 extern long ext2_ioctl(struct file *, unsigned int, unsigned long);
 extern long ext2_compat_ioctl(struct file *, unsigned int, unsigned long);
 

fs/ext2/ioctl.c

View file

diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 44e0448..c3fea55 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -18,7 +18,7 @@
 #include <linux/uaccess.h>
 #include <linux/fileattr.h>
 
-int ext2_fileattr_get(struct dentry *dentry, struct fileattr *fa)
+int ext2_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
 {
 	struct ext2_inode_info *ei = EXT2_I(d_inode(dentry));
 
@@ -28,7 +28,7 @@ int ext2_fileattr_get(struct dentry *dentry, struct fileattr *fa)
 }
 
 int ext2_fileattr_set(struct mnt_idmap *idmap,
-		      struct dentry *dentry, struct fileattr *fa)
+		      struct dentry *dentry, struct file_kattr *fa)
 {
 	struct inode *inode = d_inode(dentry);
 	struct ext2_inode_info *ei = EXT2_I(inode);

fs/ext4/ext4.h

View file

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 18373de..7d962e7 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3103,8 +3103,8 @@ extern int ext4_ind_remove_space(handle_t *handle, struct inode *inode,
 extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
 extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long);
 int ext4_fileattr_set(struct mnt_idmap *idmap,
-		      struct dentry *dentry, struct fileattr *fa);
-int ext4_fileattr_get(struct dentry *dentry, struct fileattr *fa);
+		      struct dentry *dentry, struct file_kattr *fa);
+int ext4_fileattr_get(struct dentry *dentry, struct file_kattr *fa);
 extern void ext4_reset_inode_seed(struct inode *inode);
 int ext4_update_overhead(struct super_block *sb, bool force);
 int ext4_force_shutdown(struct super_block *sb, u32 flags);

fs/ext4/ioctl.c

View file

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 5668a17..84e3c73 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -980,7 +980,7 @@ group_add_out:
 	return err;
 }
 
-int ext4_fileattr_get(struct dentry *dentry, struct fileattr *fa)
+int ext4_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
 {
 	struct inode *inode = d_inode(dentry);
 	struct ext4_inode_info *ei = EXT4_I(inode);
@@ -997,7 +997,7 @@ int ext4_fileattr_get(struct dentry *dentry, struct fileattr *fa)
 }
 
 int ext4_fileattr_set(struct mnt_idmap *idmap,
-		      struct dentry *dentry, struct fileattr *fa)
+		      struct dentry *dentry, struct file_kattr *fa)
 {
 	struct inode *inode = d_inode(dentry);
 	u32 flags = fa->flags;

fs/f2fs/f2fs.h

View file

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9333a22..c784647 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3615,9 +3615,9 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
 int f2fs_do_shutdown(struct f2fs_sb_info *sbi, unsigned int flag,
 						bool readonly, bool need_lock);
 int f2fs_precache_extents(struct inode *inode);
-int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
+int f2fs_fileattr_get(struct dentry *dentry, struct file_kattr *fa);
 int f2fs_fileattr_set(struct mnt_idmap *idmap,
-		      struct dentry *dentry, struct fileattr *fa);
+		      struct dentry *dentry, struct file_kattr *fa);
 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);

fs/f2fs/file.c

View file

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6d77eed..c677230 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -3391,7 +3391,7 @@ static int f2fs_ioc_setproject(struct inode *inode, __u32 projid)
 }
 #endif
 
-int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
+int f2fs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
 {
 	struct inode *inode = d_inode(dentry);
 	struct f2fs_inode_info *fi = F2FS_I(inode);
@@ -3415,7 +3415,7 @@ int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
 }
 
 int f2fs_fileattr_set(struct mnt_idmap *idmap,
-		      struct dentry *dentry, struct fileattr *fa)
+		      struct dentry *dentry, struct file_kattr *fa)
 {
 	struct inode *inode = d_inode(dentry);
 	u32 fsflags = fa->flags, mask = F2FS_SETTABLE_FS_FL;

fs/file_attr.c

View file

diff --git a/fs/file_attr.c b/fs/file_attr.c
new file mode 100644
index 0000000..12424d4
--- /dev/null
+++ b/fs/file_attr.c
@@ -0,0 +1,498 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/fs.h>
+#include <linux/security.h>
+#include <linux/fscrypt.h>
+#include <linux/fileattr.h>
+#include <linux/export.h>
+#include <linux/syscalls.h>
+#include <linux/namei.h>
+
+#include "internal.h"
+
+/**
+ * fileattr_fill_xflags - initialize fileattr with xflags
+ * @fa:		fileattr pointer
+ * @xflags:	FS_XFLAG_* flags
+ *
+ * Set ->fsx_xflags, ->fsx_valid and ->flags (translated xflags).  All
+ * other fields are zeroed.
+ */
+void fileattr_fill_xflags(struct file_kattr *fa, u32 xflags)
+{
+	memset(fa, 0, sizeof(*fa));
+	fa->fsx_valid = true;
+	fa->fsx_xflags = xflags;
+	if (fa->fsx_xflags & FS_XFLAG_IMMUTABLE)
+		fa->flags |= FS_IMMUTABLE_FL;
+	if (fa->fsx_xflags & FS_XFLAG_APPEND)
+		fa->flags |= FS_APPEND_FL;
+	if (fa->fsx_xflags & FS_XFLAG_SYNC)
+		fa->flags |= FS_SYNC_FL;
+	if (fa->fsx_xflags & FS_XFLAG_NOATIME)
+		fa->flags |= FS_NOATIME_FL;
+	if (fa->fsx_xflags & FS_XFLAG_NODUMP)
+		fa->flags |= FS_NODUMP_FL;
+	if (fa->fsx_xflags & FS_XFLAG_DAX)
+		fa->flags |= FS_DAX_FL;
+	if (fa->fsx_xflags & FS_XFLAG_PROJINHERIT)
+		fa->flags |= FS_PROJINHERIT_FL;
+}
+EXPORT_SYMBOL(fileattr_fill_xflags);
+
+/**
+ * fileattr_fill_flags - initialize fileattr with flags
+ * @fa:		fileattr pointer
+ * @flags:	FS_*_FL flags
+ *
+ * Set ->flags, ->flags_valid and ->fsx_xflags (translated flags).
+ * All other fields are zeroed.
+ */
+void fileattr_fill_flags(struct file_kattr *fa, u32 flags)
+{
+	memset(fa, 0, sizeof(*fa));
+	fa->flags_valid = true;
+	fa->flags = flags;
+	if (fa->flags & FS_SYNC_FL)
+		fa->fsx_xflags |= FS_XFLAG_SYNC;
+	if (fa->flags & FS_IMMUTABLE_FL)
+		fa->fsx_xflags |= FS_XFLAG_IMMUTABLE;
+	if (fa->flags & FS_APPEND_FL)
+		fa->fsx_xflags |= FS_XFLAG_APPEND;
+	if (fa->flags & FS_NODUMP_FL)
+		fa->fsx_xflags |= FS_XFLAG_NODUMP;
+	if (fa->flags & FS_NOATIME_FL)
+		fa->fsx_xflags |= FS_XFLAG_NOATIME;
+	if (fa->flags & FS_DAX_FL)
+		fa->fsx_xflags |= FS_XFLAG_DAX;
+	if (fa->flags & FS_PROJINHERIT_FL)
+		fa->fsx_xflags |= FS_XFLAG_PROJINHERIT;
+}
+EXPORT_SYMBOL(fileattr_fill_flags);
+
+/**
+ * vfs_fileattr_get - retrieve miscellaneous file attributes
+ * @dentry:	the object to retrieve from
+ * @fa:		fileattr pointer
+ *
+ * Call i_op->fileattr_get() callback, if exists.
+ *
+ * Return: 0 on success, or a negative error on failure.
+ */
+int vfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)
+{
+	struct inode *inode = d_inode(dentry);
+	int error;
+
+	if (!inode->i_op->fileattr_get)
+		return -EOPNOTSUPP;
+
+	error = security_inode_file_getattr(dentry, fa);
+	if (error)
+		return error;
+
+	return inode->i_op->fileattr_get(dentry, fa);
+}
+EXPORT_SYMBOL(vfs_fileattr_get);
+
+static void fileattr_to_file_attr(const struct file_kattr *fa,
+				  struct file_attr *fattr)
+{
+	__u32 mask = FS_XFLAGS_MASK;
+
+	memset(fattr, 0, sizeof(struct file_attr));
+	fattr->fa_xflags = fa->fsx_xflags & mask;
+	fattr->fa_extsize = fa->fsx_extsize;
+	fattr->fa_nextents = fa->fsx_nextents;
+	fattr->fa_projid = fa->fsx_projid;
+	fattr->fa_cowextsize = fa->fsx_cowextsize;
+}
+
+/**
+ * copy_fsxattr_to_user - copy fsxattr to userspace.
+ * @fa:		fileattr pointer
+ * @ufa:	fsxattr user pointer
+ *
+ * Return: 0 on success, or -EFAULT on failure.
+ */
+int copy_fsxattr_to_user(const struct file_kattr *fa, struct fsxattr __user *ufa)
+{
+	struct fsxattr xfa;
+	__u32 mask = FS_XFLAGS_MASK;
+
+	memset(&xfa, 0, sizeof(xfa));
+	xfa.fsx_xflags = fa->fsx_xflags & mask;
+	xfa.fsx_extsize = fa->fsx_extsize;
+	xfa.fsx_nextents = fa->fsx_nextents;
+	xfa.fsx_projid = fa->fsx_projid;
+	xfa.fsx_cowextsize = fa->fsx_cowextsize;
+
+	if (copy_to_user(ufa, &xfa, sizeof(xfa)))
+		return -EFAULT;
+
+	return 0;
+}
+EXPORT_SYMBOL(copy_fsxattr_to_user);
+
+static int file_attr_to_fileattr(const struct file_attr *fattr,
+				 struct file_kattr *fa)
+{
+	__u64 mask = FS_XFLAGS_MASK;
+
+	if (fattr->fa_xflags & ~mask)
+		return -EINVAL;
+
+	fileattr_fill_xflags(fa, fattr->fa_xflags);
+	fa->fsx_xflags &= ~FS_XFLAG_RDONLY_MASK;
+	fa->fsx_extsize = fattr->fa_extsize;
+	fa->fsx_projid = fattr->fa_projid;
+	fa->fsx_cowextsize = fattr->fa_cowextsize;
+
+	return 0;
+}
+
+static int copy_fsxattr_from_user(struct file_kattr *fa,
+				  struct fsxattr __user *ufa)
+{
+	struct fsxattr xfa;
+	__u32 mask = FS_XFLAGS_MASK;
+
+	if (copy_from_user(&xfa, ufa, sizeof(xfa)))
+		return -EFAULT;
+
+	if (xfa.fsx_xflags & ~mask)
+		return -EOPNOTSUPP;