DIRTY_POLL_THRESH 1491 mm/page-writeback.c if (pages < DIRTY_POLL_THRESH) { DIRTY_POLL_THRESH 1494 mm/page-writeback.c if (pages > DIRTY_POLL_THRESH) { DIRTY_POLL_THRESH 1495 mm/page-writeback.c pages = DIRTY_POLL_THRESH; DIRTY_POLL_THRESH 1496 mm/page-writeback.c t = HZ * DIRTY_POLL_THRESH / dirty_ratelimit; DIRTY_POLL_THRESH 1510 mm/page-writeback.c return pages >= DIRTY_POLL_THRESH ? 1 + t / 2 : t;