Rev the disk format for the new back reference format

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

1 files changed, 1 insertions, 1 deletions

diff --git a/ctree.h b/ctree.h
index 7dc00e87..860b89b7 100644
--- 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