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SubjectRe: [PATCH] mm: vmscan: fix setting reclaim mode
On Sun, Jan 08, 2012 at 03:05:03PM +0800, Hillf Danton wrote:
> The check for under memory pressure is corrected, then lumpy reclaim or
> reclaim/compaction could be avoided either when for order-O reclaim or
> when free pages are already low enough.
>

No explanation of problem, how this patch fixes it or what the impact
is.

At a glance, this will have the impact of using sync reclaim at low
reclaim priorities. This is unexpected so needs much better explanation.

--
Mel Gorman
SUSE Labs


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