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Re: [PATCH 02/10] mm, page_alloc: Remove unnecessary recalculations for dirty zone balancing

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  Re: [PATCH 02/10] mm, page_alloc: Remove unnecessary recalculations  for dirty zone balancing Johannes Weiner <hannes@cmpxchg.org> - 2015-09-24 22:10 +0200

#1232408 — Re: [PATCH 02/10] mm, page_alloc: Remove unnecessary recalculations for dirty zone balancing

On Mon, Sep 21, 2015 at 11:52:34AM +0100, Mel Gorman wrote:
> File-backed pages that will be immediately written are balanced between
> zones.  This heuristic tries to avoid having a single zone filled with
> recently dirtied pages but the checks are unnecessarily expensive. Move
> consider_zone_balanced into the alloc_context instead of checking bitmaps
> multiple times. The patch also gives the parameter a more meaningful name.
> 
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
> Acked-by: David Rientjes <rientjes@google.com>
> Acked-by: Michal Hocko <mhocko@suse.com>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>

Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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