diff --git a/[refs] b/[refs]
index a74bd28c9f34..7a11d34e80d0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e02119d5a7b4396c5a872582fddc8bd6d305a70a
+refs/heads/master: 91c0827de247303c6dfc40a8ec9d8305e1d07986
diff --git a/trunk/fs/btrfs/ctree.h b/trunk/fs/btrfs/ctree.h
index 6532b60683ef..f720b582fd5b 100644
--- a/trunk/fs/btrfs/ctree.h
+++ b/trunk/fs/btrfs/ctree.h
@@ -40,7 +40,7 @@ extern struct kmem_cache *btrfs_bit_radix_cachep;
 extern struct kmem_cache *btrfs_path_cachep;
 struct btrfs_ordered_sum;
 
-#define BTRFS_MAGIC "_B7RfS_M"
+#define BTRFS_MAGIC "_B8RfS_M"
 
 #define BTRFS_ACL_NOT_CACHED    ((void *)-1)