Rev the disk format for the new back reference format

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/ctree.h b/ctree.h
index 7dc00e8..860b89b 100644 (file)
--- a/ctree.h
+++ b/ctree.h
@@ -27,7 +27,7 @@
 
 struct btrfs_root;
 struct btrfs_trans_handle;
-#define BTRFS_MAGIC "_B9RfS_M"
+#define BTRFS_MAGIC "_BBRfS_M"
 
 #define BTRFS_MAX_LEVEL 8