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linux-kernelorg-stable/fs
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Andrey Albershteyn be7efb2d20
fs: introduce file_getattr and file_setattr syscalls 
Introduce file_getattr() and file_setattr() syscalls to manipulate inode
extended attributes. The syscalls takes pair of file descriptor and
pathname. Then it operates on inode opened accroding to openat()
semantics. The struct file_attr is passed to obtain/change extended
attributes.

This is an alternative to FS_IOC_FSSETXATTR ioctl with a difference
that file don't need to be open as we can reference it with a path
instead of fd. By having this we can manipulated inode extended
attributes not only on regular files but also on special ones. This
is not possible with FS_IOC_FSSETXATTR ioctl as with special files
we can not call ioctl() directly on the filesystem inode using fd.

This patch adds two new syscalls which allows userspace to get/set
extended inode attributes on special files by using parent directory
and a path - *at() like syscall.

CC: linux-api@vger.kernel.org
CC: linux-fsdevel@vger.kernel.org
CC: linux-xfs@vger.kernel.org
Signed-off-by: Andrey Albershteyn <aalbersh@kernel.org>
Link: https://lore.kernel.org/20250630-xattrat-syscall-v6-6-c4e3bc35227b@kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 		2025-07-02 17:05:17 +02:00
..
9p vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
adfs
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affs
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afs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
autofs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
bcachefs bcachefs updates for 6.16, part 2 2025-06-04 19:14:24 -07:00
befs
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bfs bfs: convert bfs to use the new mount api 2025-04-07 09:36:20 +02:00
btrfs for-6.16-tag 2025-05-28 11:59:25 -07:00
cachefiles vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
ceph A one-liner that leads to a startling (but also very much rational) 2025-06-06 17:56:19 -07:00
coda
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configfs - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
cramfs
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crypto fscrypt: add support for hardware-wrapped keys 2025-04-08 19:32:11 -07:00
debugfs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
devpts devpts: Fix type for uid and gid params 2025-04-07 15:22:12 +02:00
dlm treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
ecryptfs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
efivarfs vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
efs
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erofs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
exfat exfat: do not clear volume dirty flag during sync 2025-05-26 20:25:23 +09:00
exportfs readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
ext2 ext2: Deprecate DAX 2025-04-29 13:08:20 +02:00
ext4 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
f2fs f2fs-for-6.16-rc1 2025-05-30 08:40:25 -07:00
fat
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freevxfs
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fuse fs: make vfs_fileattr_[get|set] return -EOPNOTSUPP 2025-07-02 14:29:10 +02:00
gfs2 gfs2: Don't clear sb->s_fs_info in gfs2_sys_fs_add 2025-05-30 19:20:20 +02:00
hfs Revert "hfs{plus}: add deprecation warning" 2025-04-19 22:48:59 +02:00
hfsplus hfsplus: use bdev_rw_virt in hfsplus_submit_bio 2025-05-07 07:31:08 -06:00
hostfs Updates for UML for this cycle, notably: 2025-04-02 12:25:03 -07:00
hpfs
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hugetlbfs - The 6 patch series "Enable strict percpu address space checks" from 2025-04-01 09:29:18 -07:00
iomap iomap: don't lose folio dropbehind state for overwrites 2025-05-28 09:26:07 +02:00
isofs isofs: fix Y2038 and Y2156 issues in Rock Ridge TF entry 2025-04-15 11:56:57 +02:00
jbd2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
jffs2 jffs2: check jffs2_prealloc_raw_node_refs() result in few other places 2025-05-22 20:54:38 +02:00
jfs - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00
kernfs Driver core changes for 6.16-rc1 2025-05-29 09:11:39 -07:00
lockd
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minix
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netfs vfs-6.16-rc1.netfs 2025-06-02 15:04:06 -07:00
nfs NFS Clent Updates for Linux 6.16 2025-06-03 16:13:32 -07:00
nfs_common nfs_localio: change nfsd_file_put_local() to take a pointer to __rcu pointer 2025-05-28 17:17:14 -04:00
nfsd NFS Clent Updates for Linux 6.16 2025-06-03 16:13:32 -07:00
nilfs2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
nls
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notify \n 2025-05-29 10:34:26 -07:00
ntfs3 - The 2 patch series "zram: support algorithm-specific parameters" from 2025-06-02 16:00:26 -07:00
ocfs2 treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
omfs omfs: convert to new mount API 2025-04-28 10:54:39 +02:00
openpromfs
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orangefs orangefs: Convert to use the new mount API 2025-05-28 12:05:30 -07:00
overlayfs fs: make vfs_fileattr_[get|set] return -EOPNOTSUPP 2025-07-02 14:29:10 +02:00
proc - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
pstore treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
qnx4
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qnx6
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quota VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ramfs
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resctrl fs/resctrl: Restore the rdt_last_cmd_clear() calls after acquiring rdtgroup_mutex 2025-06-04 20:32:55 +02:00
romfs
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smb fourteen smb3 client fixes, most smbdirect related 2025-06-08 10:20:21 -07:00
squashfs squashfs: add optional full compressed block caching 2025-05-27 19:40:33 -07:00
sysfs sysfs: constify attribute_group::bin_attrs 2025-04-15 18:46:10 +02:00
tests
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tracefs VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
ubifs This pull request contains the following fixes for JFFS2 and UBIFS: 2025-06-07 07:24:07 -07:00
udf udf: Make sure i_lenExtents is uptodate on inode eviction 2025-05-07 12:04:07 +02:00
ufs ufs: convert ufs to the new mount API 2025-05-14 22:40:55 -04:00
unicode
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vboxsf vboxsf: Convert to writepages 2025-04-07 09:36:48 +02:00
verity
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xfs vfs-6.16-rc2.fixes 2025-06-02 12:49:16 -07:00
zonefs zonefs: use bdev_rw_virt in zonefs_read_super 2025-05-07 07:31:07 -06:00
Kconfig fs/resctrl: Add boiler plate for external resctrl code 2025-05-16 11:05:40 +02:00
Kconfig.binfmt
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Makefile fs: split fileattr related helpers into separate file 2025-07-01 22:44:22 +02:00
aio.c fs: aio: initialize .ki_write_stream of read-write request 2025-05-07 08:00:11 -06:00
anon_inodes.c anon_inode: raise SB_I_NODEV and SB_I_NOEXEC 2025-04-07 16:19:04 +02:00
attr.c
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backing-file.c
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bad_inode.c
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binfmt_elf.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
binfmt_elf_fdpic.c
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binfmt_flat.c
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binfmt_misc.c VFS: rename lookup_one_len family to lookup_noperm and remove permission check 2025-04-08 11:24:36 +02:00
binfmt_script.c
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bpf_fs_kfuncs.c
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buffer.c vfs-6.16-rc1.writepage 2025-05-26 08:23:09 -07:00
char_dev.c
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compat_binfmt_elf.c
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coredump.c coredump: validate socket name as it is written 2025-05-21 13:59:12 +02:00
d_path.c
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dax.c vfs-6.16-rc2.fixes 2025-06-02 12:49:16 -07:00
dcache.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
direct-io.c
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drop_caches.c
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eventfd.c
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eventpoll.c fs/eventpoll: fix endless busy loop after timeout has expired 2025-05-02 14:21:26 +02:00
exec.c - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00
fcntl.c
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fhandle.c
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file.c fs: fall back to file_ref_put() for non-last reference 2025-04-22 18:16:09 +02:00
file_attr.c fs: introduce file_getattr and file_setattr syscalls 2025-07-02 17:05:17 +02:00
file_table.c fs: Make file-nr output the total allocated file handles 2025-04-21 10:27:58 +02:00
filesystems.c fs/filesystems: Fix potential unsigned integer underflow in fs_name() 2025-04-14 13:05:59 +02:00
fs-writeback.c
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fs_context.c fs/fs_context: Mark an unlikely if condition with unlikely() in vfs_parse_monolithic_sep() 2025-04-14 13:05:59 +02:00
fs_parser.c fs/fs_parse: Remove unused and problematic validate_constant_table() 2025-04-21 10:27:59 +02:00
fs_pin.c
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fs_struct.c
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fs_types.c
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fsopen.c
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init.c
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inode.c
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internal.h vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
ioctl.c fs: split fileattr related helpers into separate file 2025-07-01 22:44:22 +02:00
kernel_read_file.c
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libfs.c vfs-6.16-rc1.super 2025-05-26 09:33:44 -07:00
locks.c
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mbcache.c
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mnt_idmapping.c
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mount.h Don't propagate mounts into detached trees 2025-05-26 17:35:32 -04:00
mpage.c fs: use writeback_iter directly in mpage_writepages 2025-05-09 12:37:48 +02:00
namei.c vfs-6.16-rc1.misc 2025-05-26 09:02:39 -07:00
namespace.c mount-related bugfixes 2025-06-08 10:35:12 -07:00
nsfs.c
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open.c fs/open: make do_truncate() killable 2025-05-15 12:03:12 +02:00
pidfs.c vfs-6.16-rc1.coredump 2025-05-26 11:17:01 -07:00
pipe.c sort.h: hoist cmp_int() into generic header file 2025-05-11 17:54:12 -07:00
pnode.c Don't propagate mounts into detached trees 2025-05-26 17:35:32 -04:00
pnode.h fix IS_MNT_PROPAGATING uses 2025-05-09 18:06:27 -04:00
posix_acl.c
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proc_namespace.c ->mnt_devname is never NULL 2025-05-23 14:20:44 +02:00
read_write.c fs/read_write: make default_llseek() killable 2025-05-15 12:03:12 +02:00
readdir.c readdir: supply dir_context.count as readdir buffer size hint 2025-05-29 12:31:23 +02:00
remap_range.c
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select.c select: core_sys_select add unlikely branch hint on return path 2025-04-21 10:27:58 +02:00
seq_file.c
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signalfd.c
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splice.c splice: remove duplicate noinline from pipe_clear_nowait 2025-04-25 12:11:56 +02:00
stack.c
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stat.c xfs: New code for 6.16 2025-05-26 12:56:01 -07:00
statfs.c
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super.c automount wart removal 2025-05-30 15:38:29 -07:00
sync.c
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sysctls.c
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timerfd.c
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userfaultfd.c mm/userfaultfd: fix uninitialized output field for -EAGAIN race 2025-05-07 23:39:39 -07:00
utimes.c
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xattr.c fs/xattr.c: fix simple_xattr_list to always include security.* xattrs 2025-04-28 10:53:22 +02:00