From 338c2faa3ecdeadfa90d49f4025df399ccb1b272 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Mon, 26 Nov 2007 10:55:49 -0500
Subject: [PATCH] --- yaml --- r: 128548 b: refs/heads/master c:
 0e4de58432f552c0ecead965b0fad8a9fb1d31ec h: refs/heads/master v: v3

---
 [refs]                       | 2 +-
 trunk/fs/btrfs/extent-tree.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 1f032d6be402..aea505f75b76 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7073c8e852946274e4d50fdf072438612f9dc845
+refs/heads/master: 0e4de58432f552c0ecead965b0fad8a9fb1d31ec
diff --git a/trunk/fs/btrfs/extent-tree.c b/trunk/fs/btrfs/extent-tree.c
index 6a7a9ba75fd9..39be6baccc36 100644
--- a/trunk/fs/btrfs/extent-tree.c
+++ b/trunk/fs/btrfs/extent-tree.c
@@ -204,6 +204,7 @@ static u64 find_search_start(struct btrfs_root *root,
 wrapped:
 	cache = btrfs_lookup_block_group(root->fs_info, last);
 	if (!cache) {
+no_cache:
 		if (!wrapped) {
 			wrapped = 1;
 			last = search_start;
@@ -219,6 +220,8 @@ static u64 find_search_start(struct btrfs_root *root,
 	}
 	if (!full_scan)
 		cache = btrfs_find_block_group(root, cache, last, data, 0);
+	if (!cache)
+		goto no_cache;
 	*cache_ret = cache;
 	cache_miss = 0;
 	goto again;