diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2024-06-24 18:49:47 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-06-28 10:53:30 +0300 |
| commit | 09b31295f833031c88419550172703d45c5401e3 (patch) | |
| tree | 50bd10c7505d59a109f1bafa41f6d8ec1d1eaa5a /include/uapi/linux | |
| parent | 1901c92497bd90caf608a474f1bf4d8795b372a2 (diff) | |
| download | linux-09b31295f833031c88419550172703d45c5401e3.tar.xz | |
fs: export the mount ns id via statmount
In order to allow users to iterate through children mount namespaces via
listmount we need a way for them to know what the ns id for the mount.
Add a new field to statmount called mnt_ns_id which will carry the ns id
for the given mount entry.
Co-developed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/6dabf437331fb7415d886f7c64b21cb2a50b1c66.1719243756.git.josef@toxicpanda.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/mount.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/mount.h b/include/uapi/linux/mount.h index 88d78de1519f..a07508aee518 100644 --- a/include/uapi/linux/mount.h +++ b/include/uapi/linux/mount.h @@ -172,7 +172,8 @@ struct statmount { __u64 propagate_from; /* Propagation from in current namespace */ __u32 mnt_root; /* [str] Root of mount relative to root of fs */ __u32 mnt_point; /* [str] Mountpoint relative to current root */ - __u64 __spare2[50]; + __u64 mnt_ns_id; /* ID of the mount namespace */ + __u64 __spare2[49]; char str[]; /* Variable size part containing strings */ }; @@ -202,6 +203,7 @@ struct mnt_id_req { #define STATMOUNT_MNT_ROOT 0x00000008U /* Want/got mnt_root */ #define STATMOUNT_MNT_POINT 0x00000010U /* Want/got mnt_point */ #define STATMOUNT_FS_TYPE 0x00000020U /* Want/got fs_type */ +#define STATMOUNT_MNT_NS_ID 0x00000040U /* Want/got mnt_ns_id */ /* * Special @mnt_id values that can be passed to listmount |