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SubjectRe: [PATCH 03/10] mm, page_alloc: Remove unnecessary recalculations for dirty zone balancing
On Mon, 20 Jul 2015, Mel Gorman wrote:

> From: Mel Gorman <mgorman@suse.de>
>
> File-backed pages that will be immediately dirtied are balanced between
> zones but it's unnecessarily expensive. Move consider_zone_balanced into
> the alloc_context instead of checking bitmaps multiple times.
>
> Signed-off-by: Mel Gorman <mgorman@suse.de>

Acked-by: David Rientjes <rientjes@google.com>

consider_zone_dirty eliminates zones over their dirty limits and
zone_dirty_ok() returns true if zones are under their dirty limits, so the
naming of both are a little strange. You might consider changing them
while you're here.


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