1236 				      unsigned long elapsed,  in wb_update_write_bandwidth()  argument
1256 	if (unlikely(elapsed > period)) {  in wb_update_write_bandwidth()
1257 		bw = div64_ul(bw, elapsed);  in wb_update_write_bandwidth()
1261 	bw += (u64)wb->write_bandwidth * (period - elapsed);  in wb_update_write_bandwidth()
1341 				      unsigned long elapsed)  in wb_update_dirty_ratelimit()  argument
1361 	dirty_rate = (dirtied - wb->dirtied_stamp) * HZ / elapsed;  in wb_update_dirty_ratelimit()
1496 	unsigned long elapsed;  in __wb_update_bandwidth()  local
1508 	elapsed = max(now - wb->bw_time_stamp, 1UL);  in __wb_update_bandwidth()
1514 		wb_update_dirty_ratelimit(gdtc, dirtied, elapsed);  in __wb_update_bandwidth()
1522 			wb_update_dirty_ratelimit(mdtc, dirtied, elapsed);  in __wb_update_bandwidth()
1525 	wb_update_write_bandwidth(wb, elapsed, written);  in __wb_update_bandwidth()
1546 	unsigned long elapsed = now - READ_ONCE(wb->bw_time_stamp);  in wb_bandwidth_estimate_start()  local
1548 	if (elapsed > WB_BANDWIDTH_IDLE_JIF &&  in wb_bandwidth_estimate_start()