Re: [PATCH v3 3/3] mm/zswap: avoid unnecessary page scanning

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On Mon, 23 Sep 2013 16:21:49 +0800 Weijie Yang <weijie.yang@xxxxxxxxxxx> wrote:

> add SetPageReclaim before __swap_writepage so that page can be moved to the
> tail of the inactive list, which can avoid unnecessary page scanning as this
> page was reclaimed by swap subsystem before.
> 
> Signed-off-by: Weijie Yang <weijie.yang@xxxxxxxxxxx>
> Reviewed-by: Bob Liu <bob.liu@xxxxxxxxxx>
> Cc: Minchan Kim <minchan@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> Acked-by: Seth Jennings <sjenning@xxxxxxxxxxxxxxxxxx>

As a minor(?) performance tweak, I don't believe this is suitable for
-stable backporting, so I took that out.  If you believe this was a
mistake, please explain why.


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