RQ_QOS_LATENCY    728 block/blk-iolatency.c 	rqos->id = RQ_QOS_LATENCY;
RQ_QOS_LATENCY     78 block/blk-rq-qos.h 	return rq_qos_id(q, RQ_QOS_LATENCY);
RQ_QOS_LATENCY     86 block/blk-rq-qos.h 	case RQ_QOS_LATENCY: