On Wed, Apr 10, 2013 at 04:47:31PM +0900, Kamezawa Hiroyuki wrote:
> > @@ -2811,8 +2814,16 @@ loop_again:
> >
> > if ((buffer_heads_over_limit && is_highmem_idx(i)) ||
> > !zone_balanced(zone, testorder,
> > - balance_gap, end_zone))
> > - kswapd_shrink_zone(zone, &sc, lru_pages);
> > + balance_gap, end_zone)) {
> > + /*
> > + * There should be no need to raise the
> > + * scanning priority if enough pages are
> > + * already being scanned that high
> > + * watermark would be met at 100% efficiency.
> > + */
> > + if (kswapd_shrink_zone(zone, &sc, lru_pages))
> > + raise_priority = false;
>
> priority will be raised up enough to scan the amount of "high" watermark
> and will not get larger than that if some pages are reclaimed ?
>
Yes.
--
Mel Gorman
SUSE Labs
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