Change the magic to rev the disk format

diff --git a/ctree.h b/ctree.h
index d619f30..d6127b6 100644 (file)
--- a/ctree.h
+++ b/ctree.h
@@ -27,7 +27,7 @@
 
 struct btrfs_root;
 struct btrfs_trans_handle;
-#define BTRFS_MAGIC "_B2RfS_M"
+#define BTRFS_MAGIC "_B3RfS_M"
 
 #define BTRFS_MAX_LEVEL 8
 #define BTRFS_ROOT_TREE_OBJECTID 1ULL