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| author | Andrey Albershteyn <aalbersh@redhat.com> | 2025-06-30 18:20:16 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-07-02 17:05:17 +0200 |
| commit | be7efb2d20d67f334a7de2aef77ae6c69367e646 (patch) | |
| tree | 3b85c9c53b57d7c4bd965e27733548f035d1700c /arch/sparc/kernel | |
| parent | fs: prepare for extending file_get/setattr() (diff) | |
| download | linux-be7efb2d20d67f334a7de2aef77ae6c69367e646.tar.gz linux-be7efb2d20d67f334a7de2aef77ae6c69367e646.zip | |
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>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/syscalls/syscall.tbl | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index 83e45eb6c095..ebb7d06d1044 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 |