propagate_mnt(): use scoped_guard(mount_locked_reader) for mnt_set_mountpoint()

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/pnode.c b/fs/pnode.c
index 6f7d02f3fa985f7ec335c0f59b17cf9f82743689..0702d45d856dd9f7513236ddc2b28293326b93c0 100644 (file)
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -304,9 +304,8 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
                                err = PTR_ERR(this);
                                break;
                        }
-                       read_seqlock_excl(&mount_lock);
-                       mnt_set_mountpoint(n, dest_mp, this);
-                       read_sequnlock_excl(&mount_lock);
+                       scoped_guard(mount_locked_reader)
+                               mnt_set_mountpoint(n, dest_mp, this);
                        if (n->mnt_master)
                                SET_MNT_MARK(n->mnt_master);
                        copy = this;