uuid_compare
int32_t uuid_compare(const uuid_t *, const uuid_t *, uint32_t *);
extern int uuid_compare(uuid_t, uuid_t);
if (uuid_compare(dd->gz_be_uuid, parent_uuid) == 0) {
if (uuid_compare(parent_uuid, cur_parent_uuid) != 0) {
if (uuid_compare(azr_data->parent_uuid, parent_uuid) == 0) {
if (uuid_compare(uuid, ze->zone_uuid) == 0)
(uuid_compare(version->v_uuid, uuid) != 0)) {