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Date: Thu, 25 Jun 2015 11:08:30 +0200 From: Vlastimil Babka <vbabka@...e.cz> To: Joonsoo Kim <iamjoonsoo.kim@....com>, Andrew Morton <akpm@...ux-foundation.org> CC: linux-kernel@...r.kernel.org, linux-mm@...ck.org, Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>, David Rientjes <rientjes@...gle.com>, Minchan Kim <minchan@...nel.org> Subject: Re: [RFC PATCH 03/10] mm/compaction: always update cached pfn I can has commit log? :) On 06/25/2015 02:45 AM, Joonsoo Kim wrote: > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com> > --- > mm/compaction.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/mm/compaction.c b/mm/compaction.c > index 9c5d43c..2d8e211 100644 > --- a/mm/compaction.c > +++ b/mm/compaction.c > @@ -510,6 +510,10 @@ isolate_fail: > if (locked) > spin_unlock_irqrestore(&cc->zone->lock, flags); > > + if (blockpfn == end_pfn && > + blockpfn > cc->zone->compact_cached_free_pfn) > + cc->zone->compact_cached_free_pfn = blockpfn; > + > update_pageblock_skip(cc, valid_page, total_isolated, > *start_pfn, end_pfn, blockpfn, false); > > @@ -811,6 +815,13 @@ isolate_success: > if (locked) > spin_unlock_irqrestore(&zone->lru_lock, flags); > > + if (low_pfn == end_pfn && cc->mode != MIGRATE_ASYNC) { > + int sync = cc->mode != MIGRATE_ASYNC; > + > + if (low_pfn > zone->compact_cached_migrate_pfn[sync]) > + zone->compact_cached_migrate_pfn[sync] = low_pfn; > + } > + > update_pageblock_skip(cc, valid_page, nr_isolated, > start_pfn, end_pfn, low_pfn, true); > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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