Re: [PATCH 3/7] VM_LOCKED check don't need pte lock

[Rik van Riel]

On 12/04/2009 03:42 AM, KOSAKI Motohiro wrote:
>  From 24f910b1ac966c21ea5aab825d1f26815b760304 Mon Sep 17 00:00:00 2001
> From: KOSAKI Motohiro<kosaki.motohiro@xxxxxxxxxxxxxx>
> Date: Thu, 3 Dec 2009 16:06:47 +0900
> Subject: [PATCH 3/7] VM_LOCKED check don't need pte lock
>
> Currently, page_referenced_one() check VM_LOCKED after taking ptelock.
> But it's unnecessary. We can check VM_LOCKED before to take lock.
>
> This patch does it.

Nice optimization.

> Signed-off-by: KOSAKI Motohiro<kosaki.motohiro@xxxxxxxxxxxxxx>

Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

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