| Date | Tue, 19 Mar 2013 10:35:12 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH 06/10] mm: vmscan: Have kswapd writeback pages based on dirty pages encountered, not priority |
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On Mon, Mar 18, 2013 at 07:08:50PM +0800, Wanpeng Li wrote: > >@@ -2735,8 +2748,12 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, int order, > > end_zone = i; > > break; > > } else { > >- /* If balanced, clear the congested flag */ > >+ /* > >+ * If balanced, clear the dirty and congested > >+ * flags > >+ */ > > zone_clear_flag(zone, ZONE_CONGESTED); > >+ zone_clear_flag(zone, ZONE_DIRTY); > > Hi Mel, > > There are two places in balance_pgdat clear ZONE_CONGESTED flag, one > is during scan zone which have free_pages <= high_wmark_pages(zone), the > other one is zone get balanced after reclaim, it seems that you miss the > later one. >
I did and it's fixed now. Thanks.
-- Mel Gorman SUSE Labs
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