lkml.org 
[lkml]   [2009]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
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>

--
All rights reversed.


\
 
 \ /
  Last update: 2009-12-06 20:45    [W:0.104 / U:10.448 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site