elv_rqhash_del    439 block/elevator.c 	elv_rqhash_del(q, rq);
elv_rqhash_del    479 block/elevator.c 	elv_rqhash_del(q, rq);
elv_rqhash_del    546 block/elevator.c 	elv_rqhash_del(q, next);