The reason why it needs only mount_locked_reader is that there's no lockless
accesses of expiry lists.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index eabb0d996c6a..acacfe767a7c 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -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);
- list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list);
- read_sequnlock_excl(&mount_lock);
+ scoped_guard(mount_locked_reader)
+ list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list);
}
EXPORT_SYMBOL(mnt_set_expiry);
--
2.47.2
