int btrfs_qgroup_parse_sort_string(const char *opt_arg,
struct btrfs_qgroup_comparer_set **comps);
-u64 btrfs_get_path_rootid(int fd);
int btrfs_show_qgroups(int fd, struct btrfs_qgroup_filter_set *,
struct btrfs_qgroup_comparer_set *);
void btrfs_qgroup_setup_print_column(enum btrfs_qgroup_column_enum column);