diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2024-06-24 11:49:50 -0400 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-06-28 09:53:31 +0200 |
| commit | e8e43a1fcc5c07575f37e40f8a2cd78aee46f9a0 (patch) | |
| tree | 58c23b611a71a68ce96cd91acd984c910960e460 /include/uapi | |
| parent | fs: Allow statmount() in foreign mount namespace (diff) | |
| download | linux-e8e43a1fcc5c07575f37e40f8a2cd78aee46f9a0.tar.gz linux-e8e43a1fcc5c07575f37e40f8a2cd78aee46f9a0.zip | |
fs: add an ioctl to get the mnt ns id from nsfs
In order to utilize the listmount() and statmount() extensions that
allow us to call them on different namespaces we need a way to get the
mnt namespace id from user space. Add an ioctl to nsfs that will allow
us to extract the mnt namespace id in order to make these new extensions
usable.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/180449959d5a756af7306d6bda55f41b9d53e3cb.1719243756.git.josef@toxicpanda.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/nsfs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/nsfs.h b/include/uapi/linux/nsfs.h index a0c8552b64ee..56e8b1639b98 100644 --- a/include/uapi/linux/nsfs.h +++ b/include/uapi/linux/nsfs.h @@ -15,5 +15,7 @@ #define NS_GET_NSTYPE _IO(NSIO, 0x3) /* Get owner UID (in the caller's user namespace) for a user namespace */ #define NS_GET_OWNER_UID _IO(NSIO, 0x4) +/* Get the id for a mount namespace */ +#define NS_GET_MNTNS_ID _IO(NSIO, 0x5) #endif /* __LINUX_NSFS_H */ |