if (blk_account_rq(rq)) 
if (blk_account_rq(rq)) { 
void elv_completed_request(request_queue_t *q, struct request *rq){	elevator_t *e = q->elevator;	/*	 * request is released from the driver, io must be done	 */	if (blk_account_rq(rq))		q->in_flight--;	if (e->ops->elevator_completed_req_fn)		e->ops->elevator_completed_req_fn(q, rq);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/8922e16cf6269e668123acb1ae1fdc62b7a3a4fc/elevator.c/buggy/drivers/block/elevator.c