diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index e22c5bbf022393b9a7c9f24e71f8cd82b75dc3d8..7d7bc8eace86bf95b3a80e9ea14c3facf41d108a 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3426,6 +3426,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 				mutex_unlock(&head->mutex);
 				btrfs_put_delayed_ref(ref);
 
+				spin_lock(&delayed_refs->lock);
 				continue;
 			}