return !cfq_pending_requests(cfqd); 
return !cfqd->busy_queues; 
static int cfq_queue_empty(request_queue_t *q){	struct cfq_data *cfqd = q->elevator->elevator_data;	return !cfq_pending_requests(cfqd);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/b4878f245ec8e168cdd1f170f823a750b7dd4af5/cfq-iosched.c/buggy/drivers/block/cfq-iosched.c