/* stores information about which extents are in use, and reference counts */
#define BTRFS_EXTENT_TREE_OBJECTID 2ULL
-/* one per subvolume, storing files and directories */
-#define BTRFS_FS_TREE_OBJECTID 3ULL
-
-/* directory objectid inside the root tree */
-#define BTRFS_ROOT_TREE_DIR_OBJECTID 4ULL
-
-
/*
* chunk tree stores translations from logical -> physical block numbering
* the super block points to the chunk tree
*/
-#define BTRFS_CHUNK_TREE_OBJECTID 5ULL
+#define BTRFS_CHUNK_TREE_OBJECTID 3ULL
/*
* stores information about which areas of a given device are in use.
* one per device. The tree of tree roots points to the device tree
*/
-#define BTRFS_DEV_TREE_OBJECTID 6ULL
+#define BTRFS_DEV_TREE_OBJECTID 4ULL
+
+/* one per subvolume, storing files and directories */
+#define BTRFS_FS_TREE_OBJECTID 5ULL
+
+/* directory objectid inside the root tree */
+#define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL
/*
* All files have objectids higher than this.