--- x/fs/super.c
+++ y/fs/super.c
@@ -451,7 +451,6 @@ void deactivate_locked_super(struct supe
 	struct file_system_type *fs = s->s_type;
 	if (atomic_dec_and_test(&s->s_active)) {
 		unregister_shrinker(&s->s_shrink);
-		fs->kill_sb(s);
 
 		/*
 		 * Since list_lru_destroy() may sleep, we cannot call it from
@@ -472,6 +471,7 @@ void deactivate_locked_super(struct supe
 		hlist_del_init(&s->s_instances);
 		spin_unlock(&sb_lock);
 
+		fs->kill_sb(s);
 		/*
 		 * Let concurrent mounts know that this thing is really dead.
 		 * We don't need @sb->s_umount here as every concurrent caller