931 static long long pos_ratio_polynom(unsigned long setpoint,  in pos_ratio_polynom()  argument
938 	x = div64_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT,  in pos_ratio_polynom()
939 		      (limit - setpoint) | 1);  in pos_ratio_polynom()
1031 	unsigned long setpoint;		/* dirty pages' target balance point */  in wb_position_ratio()  local
1047 	setpoint = (freerun + limit) / 2;  in wb_position_ratio()
1048 	pos_ratio = pos_ratio_polynom(setpoint, dtc->dirty, limit);  in wb_position_ratio()
1167 	wb_setpoint = setpoint * (u64)x >> 16;  in wb_position_ratio()
1314 	unsigned long setpoint = (freerun + limit) / 2;  in wb_update_dirty_ratelimit()  local
1425 			setpoint = dtc->wb_dirty + 1;  in wb_update_dirty_ratelimit()
1427 			setpoint = (dtc->wb_thresh + dtc->wb_bg_thresh) / 2;  in wb_update_dirty_ratelimit()
1430 	if (dirty < setpoint) {  in wb_update_dirty_ratelimit()