Re: [PATCH -mm 07/16] second chance replacement for anonymous pages

From: Rik van Riel
Date: Wed May 28 2008 - 10:22:50 EST


On Wed, 28 May 2008 20:03:11 +0900
KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> wrote:

> > @@ -1129,7 +1141,11 @@ static unsigned long shrink_list(enum lr
> > {
> > int file = is_file_lru(lru);
> >
> > - if (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE) {
> > + if (lru == LRU_ACTIVE_FILE) {
> > + shrink_active_list(nr_to_scan, zone, sc, priority, file);
> > + return 0;
> > + }
> > + if (lru == LRU_ACTIVE_ANON && inactive_anon_low(zone)) {
> > shrink_active_list(nr_to_scan, zone, sc, priority, file);
> > return 0;
> > }
>
> I made memcgroup noreclaim infrastructure today.
> and, I found slightly odd behaviour.
>
> this condition increase OOM, because prevent active -> inactive moving
> even though non global reclaim.

Good catch, I have applied your patch to my tree.

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