Re: [RFC][PATCH 1/3] pagemap: avoid splitting thp when reading /proc/pid/pagemap

[Andi Kleen]

On Mon, Dec 19, 2011 at 01:38:37PM -0500, Naoya Horiguchi wrote:
> Thp split is not necessary if we explicitly check whether pmds are
> mapping thps or not. This patch introduces the check and the code
> to generate pagemap entries for pmds mapping thps, which results in
> less performance impact of pagemap on thp.

Looks good.

Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

-Andi
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