238 	struct rq_depth *rqd = &rwb->rq_depth;  in latency_exceeded()  local
282 	if (rqd->scale_step)  in latency_exceeded()
291 	struct rq_depth *rqd = &rwb->rq_depth;  in rwb_trace_step()  local
293 	trace_wbt_step(bdi, msg, rqd->scale_step, rwb->cur_win_nsec,  in rwb_trace_step()
294 			rwb->wb_background, rwb->wb_normal, rqd->max_depth);  in rwb_trace_step()
331 	struct rq_depth *rqd = &rwb->rq_depth;  in rwb_arm_timer()  local
333 	if (rqd->scale_step > 0) {  in rwb_arm_timer()
341 					int_sqrt((rqd->scale_step + 1) << 8));  in rwb_arm_timer()
356 	struct rq_depth *rqd = &rwb->rq_depth;  in wb_timer_fn()  local
362 	trace_wbt_timer(rwb->rqos.q->backing_dev_info, status, rqd->scale_step,  in wb_timer_fn()
393 		if (rqd->scale_step > 0)  in wb_timer_fn()
395 		else if (rqd->scale_step < 0)  in wb_timer_fn()
405 	if (rqd->scale_step || inflight)  in wb_timer_fn()
411 	struct rq_depth *rqd = &rwb->rq_depth;  in wbt_update_limits()  local
413 	rqd->scale_step = 0;  in wbt_update_limits()
414 	rqd->scaled_max = false;  in wbt_update_limits()
416 	rq_depth_calc_max_depth(rqd);  in wbt_update_limits()