---

yaml
---
r: 253087
b: refs/heads/master
c: cca1c81
h: refs/heads/master
i:
  253085: 25c4cf1
  253083: a5b90d9
  253079: 0406f6e
  253071: 61c72ab
  253055: 2a87299
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 026fd317828500524cdc7e5ff9e8e7923abb2868
+refs/heads/master: cca1c81f43e26ab60c0d1090fb90992358d69bdf

trunk/fs/btrfs/extent-tree.c

@@ -5159,6 +5159,14 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
 		if (unlikely(block_group->ro))
 			goto loop;
 
+		spin_lock(&block_group->tree_lock);
+		if (cached &&
+		    block_group->free_space < num_bytes + empty_size) {
+			spin_unlock(&block_group->tree_lock);
+			goto loop;
+		}
+		spin_unlock(&block_group->tree_lock);
+
 		/*
 		 * Ok we want to try and use the cluster allocator, so lets look
 		 * there, unless we are on LOOP_NO_EMPTY_SIZE, since we will