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Re: [PATCH 03/10] mm, page_alloc: Remove unnecessary taking of a seqlock when cpusets are disabled

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  Re: [PATCH 03/10] mm, page_alloc: Remove unnecessary taking of a  seqlock when cpusets are disabled Johannes Weiner <hannes@cmpxchg.org> - 2015-09-24 22:10 +0200

#1232409 — Re: [PATCH 03/10] mm, page_alloc: Remove unnecessary taking of a seqlock when cpusets are disabled

On Mon, Sep 21, 2015 at 11:52:35AM +0100, Mel Gorman wrote:
> There is a seqcounter that protects against spurious allocation failures
> when a task is changing the allowed nodes in a cpuset. There is no need
> to check the seqcounter until a cpuset exists.
> 
> Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
> Acked-by: Christoph Lameter <cl@linux.com>
> Acked-by: David Rientjes <rientjes@google.com>
> Acked-by: Vlastimil Babka <vbabka@suse.cz>
> Acked-by: Michal Hocko <mhocko@suse.com>

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