diff options
| author | Andrey Albershteyn <aalbersh@redhat.com> | 2025-06-30 19:20:16 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-07-02 18:05:17 +0300 |
| commit | be7efb2d20d67f334a7de2aef77ae6c69367e646 (patch) | |
| tree | 3b85c9c53b57d7c4bd965e27733548f035d1700c /arch | |
| parent | 276e136bff7edcdecc6e206c81594ef06aa40743 (diff) | |
| download | linux-be7efb2d20d67f334a7de2aef77ae6c69367e646.tar.xz | |
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')
| -rw-r--r-- | arch/alpha/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/arm/tools/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/arm64/tools/syscall_32.tbl | 2 | ||||
| -rw-r--r-- | arch/m68k/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/microblaze/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/syscalls/syscall_n32.tbl | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/syscalls/syscall_n64.tbl | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/syscalls/syscall_o32.tbl | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/syscalls/syscall.tbl | 2 | ||||
| -rw-r--r-- | arch/x86/entry/syscalls/syscall_32.tbl | 2 | ||||
| -rw-r--r-- | arch/x86/entry/syscalls/syscall_64.tbl | 2 | ||||
| -rw-r--r-- | arch/xtensa/kernel/syscalls/syscall.tbl | 2 |
16 files changed, 32 insertions, 0 deletions
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index 2dd6340de6b4..16dca28ebf17 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 diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index 27c1d5ebcd91..b07e699aaa3c 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 diff --git a/arch/arm64/tools/syscall_32.tbl b/arch/arm64/tools/syscall_32.tbl index 0765b3a8d6d6..8d9088bc577d 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 diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl index 9fe47112c586..f41d38dfbf13 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 diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl index 7b6e97828e55..580af574fe73 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 diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index aa70e371bb54..d824ffe9a014 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 diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl index 1e8c44c7b614..7a7049c2c307 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 diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 114a5a1a6230..d330274f0601 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 diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index 94df3cb957e9..88a788a7b18d 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 diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index 9a084bdb8926..b453e80dfc00 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 diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index a4569b96ef06..8a6744d658db 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 diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl index 52a7652fcff6..5e9c9eff5539 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 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 diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index ac007ea00979..4877e16da69a 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 diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index cfb5ca41e30d..92cf0fe2291e 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 diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl index f657a77314f8..374e4cb788d8 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 |