msb_get_zone_from_pba
if (msb_get_zone_from_lba(lba) != msb_get_zone_from_pba(pba)) {
if (pba == msb->block_count || (msb_get_zone_from_pba(pba)) != zone) {
if (msb_get_zone_from_lba(lba) != msb_get_zone_from_pba(pba)) {
int zone = msb_get_zone_from_pba(pba);
int zone = msb_get_zone_from_pba(pba);