wb_max_ratio      770 mm/page-writeback.c 	unsigned long wb_min_ratio, wb_max_ratio;
wb_max_ratio      782 mm/page-writeback.c 	wb_min_max_ratio(dtc->wb, &wb_min_ratio, &wb_max_ratio);
wb_max_ratio      785 mm/page-writeback.c 	if (wb_thresh > (thresh * wb_max_ratio) / 100)
wb_max_ratio      786 mm/page-writeback.c 		wb_thresh = thresh * wb_max_ratio / 100;