bg_bytes 398 mm/page-writeback.c unsigned long bg_bytes = dirty_background_bytes; bg_bytes 420 mm/page-writeback.c if (bg_bytes) bg_bytes 421 mm/page-writeback.c bg_ratio = min(DIV_ROUND_UP(bg_bytes, global_avail), bg_bytes 423 mm/page-writeback.c bytes = bg_bytes = 0; bg_bytes 431 mm/page-writeback.c if (bg_bytes) bg_bytes 432 mm/page-writeback.c bg_thresh = DIV_ROUND_UP(bg_bytes, PAGE_SIZE);