diff options
| author | Christian Brauner <brauner@kernel.org> | 2024-07-19 13:41:50 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-08-09 12:44:50 +0200 |
| commit | 5fcf329676cf9d132842d9871f83a091c32f3bfc (patch) | |
| tree | c234c72c7fb501a2cd36c873189c54b4faa9a3cf /include/linux/mnt_namespace.h | |
| parent | 7b9d14af8777ac439bbfa9ac73a12a6d85289e7e (diff) | |
fs: add put_mnt_ns() cleanup helper
Add a simple helper to put a mount namespace reference.
Link: https://lore.kernel.org/r/20240719-work-mount-namespace-v1-3-834113cab0d2@kernel.org
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/linux/mnt_namespace.h')
| -rw-r--r-- | include/linux/mnt_namespace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h index 8f882f5881e8..70b366b64816 100644 --- a/include/linux/mnt_namespace.h +++ b/include/linux/mnt_namespace.h @@ -3,6 +3,9 @@ #define _NAMESPACE_H_ #ifdef __KERNEL__ +#include <linux/cleanup.h> +#include <linux/err.h> + struct mnt_namespace; struct fs_struct; struct user_namespace; @@ -11,6 +14,7 @@ struct ns_common; extern struct mnt_namespace *copy_mnt_ns(unsigned long, struct mnt_namespace *, struct user_namespace *, struct fs_struct *); extern void put_mnt_ns(struct mnt_namespace *ns); +DEFINE_FREE(put_mnt_ns, struct mnt_namespace *, if (!IS_ERR_OR_NULL(_T)) put_mnt_ns(_T)) extern struct ns_common *from_mnt_ns(struct mnt_namespace *); extern const struct file_operations proc_mounts_operations; |