wb_pos_ratio      957 mm/page-writeback.c 		long long wb_pos_ratio;
wb_pos_ratio      974 mm/page-writeback.c 		wb_pos_ratio = pos_ratio_polynom(wb_setpoint, dtc->wb_dirty,
wb_pos_ratio      998 mm/page-writeback.c 		dtc->pos_ratio = min(pos_ratio, wb_pos_ratio);