308 	unsigned long x = 0;  in highmem_dirtyable_memory()  local
328 			x += nr_pages;  in highmem_dirtyable_memory()
341 	if ((long)x < 0)  in highmem_dirtyable_memory()
342 		x = 0;  in highmem_dirtyable_memory()
350 	return min(x, total);  in highmem_dirtyable_memory()
364 	unsigned long x;  in global_dirtyable_memory()  local
366 	x = global_zone_page_state(NR_FREE_PAGES);  in global_dirtyable_memory()
372 	x -= min(x, totalreserve_pages);  in global_dirtyable_memory()
374 	x += global_node_page_state(NR_INACTIVE_FILE);  in global_dirtyable_memory()
375 	x += global_node_page_state(NR_ACTIVE_FILE);  in global_dirtyable_memory()
378 		x -= highmem_dirtyable_memory(x);  in global_dirtyable_memory()
380 	return x + 1;	/* Ensure that we never return 0 */  in global_dirtyable_memory()
817 	long x;  in pos_ratio_polynom()  local
819 	x = div64_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT,  in pos_ratio_polynom()
821 	pos_ratio = x;  in pos_ratio_polynom()
822 	pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;  in pos_ratio_polynom()
823 	pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT;  in pos_ratio_polynom()
916 	long x;  in wb_position_ratio()  local
1047 	x = div_u64((u64)wb_thresh << 16, dtc->thresh | 1);  in wb_position_ratio()
1048 	wb_setpoint = setpoint * (u64)x >> 16;  in wb_position_ratio()
1057 	span = (dtc->thresh - wb_thresh + 8 * write_bw) * (u64)x >> 16;  in wb_position_ratio()
1202 	unsigned long x;  in wb_update_dirty_ratelimit()  local
1312 		x = min3(wb->balanced_dirty_ratelimit,  in wb_update_dirty_ratelimit()
1314 		if (dirty_ratelimit < x)  in wb_update_dirty_ratelimit()
1315 			step = x - dirty_ratelimit;  in wb_update_dirty_ratelimit()
1317 		x = max3(wb->balanced_dirty_ratelimit,  in wb_update_dirty_ratelimit()
1319 		if (dirty_ratelimit > x)  in wb_update_dirty_ratelimit()
1320 			step = dirty_ratelimit - x;  in wb_update_dirty_ratelimit()