668 	unsigned long dirty_thresh;  in bdi_ratio_from_pages()  local
671 	global_dirty_limits(&background_thresh, &dirty_thresh);  in bdi_ratio_from_pages()
672 	if (!dirty_thresh)  in bdi_ratio_from_pages()
674 	ratio = div64_u64(pages * 100ULL * BDI_RATIO_SCALE, dirty_thresh);  in bdi_ratio_from_pages()
682 	unsigned long dirty_thresh;  in bdi_get_bytes()  local
685 	global_dirty_limits(&background_thresh, &dirty_thresh);  in bdi_get_bytes()
686 	bytes = (dirty_thresh * PAGE_SIZE * ratio) / BDI_RATIO_SCALE / 100;  in bdi_get_bytes()
2250 	unsigned long dirty_thresh;  in writeback_set_ratelimit()  local
2252 	global_dirty_limits(&background_thresh, &dirty_thresh);  in writeback_set_ratelimit()
2253 	dom->dirty_limit = dirty_thresh;  in writeback_set_ratelimit()
2254 	ratelimit_pages = dirty_thresh / (num_online_cpus() * 32);  in writeback_set_ratelimit()