elv_merged_request  239 block/blk-mq-sched.c 			elv_merged_request(q, rq, ELEVATOR_BACK_MERGE);
elv_merged_request  248 block/blk-mq-sched.c 			elv_merged_request(q, rq, ELEVATOR_FRONT_MERGE);
elv_merged_request  118 include/linux/elevator.h extern void elv_merged_request(struct request_queue *, struct request *,