diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-09-12 14:52:52 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-19 15:26:16 +0300 |
| commit | e83f0b5d10dcf62833008327cb661c7d118bca85 (patch) | |
| tree | 8aea9ee6ffc99baf11533a770fc683efe76c8db9 /include/uapi/linux | |
| parent | 5222470b2fbb3740f931f189db33dd1367b1ae75 (diff) | |
| download | linux-e83f0b5d10dcf62833008327cb661c7d118bca85.tar.xz | |
nsfs: support exhaustive file handles
Pidfd file handles are exhaustive meaning they don't require a handle on
another pidfd to pass to open_by_handle_at() so it can derive the
filesystem to decode in. Instead it can be derived from the file
handle itself. The same is possible for namespace file handles.
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/fcntl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h index f291ab4f94eb..3741ea1b73d8 100644 --- a/include/uapi/linux/fcntl.h +++ b/include/uapi/linux/fcntl.h @@ -111,6 +111,7 @@ #define PIDFD_SELF_THREAD_GROUP -10001 /* Current thread group leader. */ #define FD_PIDFS_ROOT -10002 /* Root of the pidfs filesystem */ +#define FD_NSFS_ROOT -10003 /* Root of the nsfs filesystem */ #define FD_INVALID -10009 /* Invalid file descriptor: -10000 - EBADF = -10009 */ /* Generic flags for the *at(2) family of syscalls. */ |