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mnt_set_expiry(): use guards

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The reason why it needs only mount_locked_reader is that there's no lockless
accesses of expiry lists.

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2025-08-20 21:58:03 -04:00
parent f80b84358f
commit 2605d86843
1 changed files with 1 additions and 2 deletions
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3
fs/namespace.c
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@ -3858,9 +3858,8 @@ int finish_automount(struct vfsmount *m, const struct path *path)
*/
void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list)
{
read_seqlock_excl(&mount_lock);
guard(mount_locked_reader)();
list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list);
read_sequnlock_excl(&mount_lock);
}
EXPORT_SYMBOL(mnt_set_expiry);