static void cfq_remove_request(request_queue_t *q, struct request *rq)
static void cfq_remove_request(struct request *rq)
static void cfq_remove_request(request_queue_t *q, struct request *rq){	struct cfq_rq *crq = RQ_DATA(rq);	if (crq) {		list_del_init(&rq->queuelist);		cfq_del_crq_rb(crq);		cfq_remove_merge_hints(q, crq);	}}