int sectorsize);
void unlink_free_space(struct btrfs_free_space_ctl *ctl,
struct btrfs_free_space *info);
+int btrfs_add_free_space(struct btrfs_free_space_ctl *ctl, u64 offset,
+ u64 bytes);
+int btrfs_clear_free_space_cache(struct btrfs_fs_info *fs_info,
+ struct btrfs_block_group_cache *bg);
#endif