Unverified Commit 5fcf3296 authored by Christian Brauner's avatar Christian Brauner
Browse files

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: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 7b9d14af

include/linux/mnt_namespace.h

+4 −0
Original line number Diff line number Diff line
@@ -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;