diff options
| author | Christian Brauner <brauner@kernel.org> | 2026-05-11 13:27:46 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-05-21 11:53:41 +0300 |
| commit | 09e8b7a428b3f52b7625870edb4cd42e621fac07 (patch) | |
| tree | 57f42aec27054b1bc92e8ce455763fdba821cb67 /include/uapi | |
| parent | 3e0be8ccff090cde4e10410f8e6a3fefeeff4124 (diff) | |
| parent | c0329020da211b41afce4d1c8a1c2494c6d97883 (diff) | |
| download | linux-09e8b7a428b3f52b7625870edb4cd42e621fac07.tar.xz | |
Merge patch series "vfs: add O_EMPTYPATH to openat(2)/openat2(2)"
Jori Koolstra <jkoolstra@xs4all.nl> says:
To get an operable version of an O_PATH file descriptor, it is possible
to use openat(fd, ".", O_DIRECTORY) for directories, but other files
currently require going through open("/proc/<pid>/fd/<nr>"), which
depends on a functioning procfs.
This patch adds the O_EMPTYPATH flag to openat(2)/openat2(2). If passed,
LOOKUP_EMPTY is set at path resolution time.
* patches from https://patch.msgid.link/20260424114611.1678641-1-jkoolstra@xs4all.nl:
selftest: add tests for O_EMPTYPATH
vfs: add O_EMPTYPATH to openat(2)/openat2(2)
Link: https://patch.msgid.link/20260424114611.1678641-1-jkoolstra@xs4all.nl
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/asm-generic/fcntl.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h index 613475285643..bfc68156b45a 100644 --- a/include/uapi/asm-generic/fcntl.h +++ b/include/uapi/asm-generic/fcntl.h @@ -88,6 +88,10 @@ #define __O_TMPFILE 020000000 #endif +#ifndef O_EMPTYPATH +#define O_EMPTYPATH (1 << 26) /* allow empty path */ +#endif + /* a horrid kludge trying to make sure that this will fail on old kernels */ #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) |