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    SubjectRe: [PATCH 3/7] VM_LOCKED check don't need pte lock
    On 12/04/2009 03:42 AM, KOSAKI Motohiro wrote:
    > From 24f910b1ac966c21ea5aab825d1f26815b760304 Mon Sep 17 00:00:00 2001
    > From: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
    > 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@jp.fujitsu.com>

    Reviewed-by: Rik van Riel <riel@redhat.com>

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