RSPQ_Q_SIZE
if (rspq->rspq_dump_count > RSPQ_Q_SIZE) {
if (rspq->rspq_dump_start > (RSPQ_Q_SIZE-1)) {
(rspq->rspq_dump_start + rspq->rspq_dump_count) & (RSPQ_Q_SIZE-1));
idx = i & (RSPQ_Q_SIZE-1);
q->rspq_size = RSPQ_Q_SIZE;