btrfs_set_fs_compat_ro 1170 fs/btrfs/free-space-tree.c 	btrfs_set_fs_compat_ro(fs_info, FREE_SPACE_TREE);
btrfs_set_fs_compat_ro 1171 fs/btrfs/free-space-tree.c 	btrfs_set_fs_compat_ro(fs_info, FREE_SPACE_TREE_VALID);