From 7dcb085950a39022c6bba00d5b92a372a47e27ad Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Fri, 11 Apr 2008 10:51:07 -0400
Subject: [PATCH] --- yaml --- r: 128710 b: refs/heads/master c:
 3dd39914bc0737d055c780d29c20a1d117819cdb h: refs/heads/master v: v3

---
 [refs]                   | 2 +-
 trunk/fs/btrfs/disk-io.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index b603e1f76512..43f2c32b763e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f29844623de29a12358d7fba35d0959465b64adf
+refs/heads/master: 3dd39914bc0737d055c780d29c20a1d117819cdb
diff --git a/trunk/fs/btrfs/disk-io.c b/trunk/fs/btrfs/disk-io.c
index cf1de75f088a..e22960e23501 100644
--- a/trunk/fs/btrfs/disk-io.c
+++ b/trunk/fs/btrfs/disk-io.c
@@ -436,6 +436,12 @@ static int btree_releasepage(struct page *page, gfp_t gfp_flags)
 	struct extent_map_tree *map;
 	int ret;
 
+	if (page_count(page) > 3) {
+		/* once for page->private, once for the caller, once
+		 * once for the page cache
+		 */
+		return 0;
+	}
 	tree = &BTRFS_I(page->mapping->host)->io_tree;
 	map = &BTRFS_I(page->mapping->host)->extent_tree;
 	ret = try_release_extent_mapping(map, tree, page, gfp_flags);