In my platform, there can be cache a lot of memory in ion page pool. When shrink memory the nr_to_scan to ion is always to little. to_scan: 395 ion_pool_cached: 27305 Currently, the shrinker nr_deferred is set to total_scan. But it's not the real left of the shrinker. Change it to the freeable - freed. Signed-off-by: Chen Feng <puck.chen@xxxxxxxxxxxxx> --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index c4a2f45..1ce3fc4 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -357,8 +357,8 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl, * manner that handles concurrent updates. If we exhausted the * scan, there is no need to do an update. */ - if (total_scan > 0) - new_nr = atomic_long_add_return(total_scan, + if (freeable - freed > 0) + new_nr = atomic_long_add_return(freeable - freed, &shrinker->nr_deferred[nid]); else new_nr = atomic_long_read(&shrinker->nr_deferred[nid]); -- 1.9.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>