Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933969Ab3DGPlp (ORCPT ); Sun, 7 Apr 2013 11:41:45 -0400 Received: from mail-vb0-f42.google.com ([209.85.212.42]:64831 "EHLO mail-vb0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932421Ab3DGPlo (ORCPT ); Sun, 7 Apr 2013 11:41:44 -0400 Message-ID: <516193BC.3000503@gmail.com> Date: Sun, 07 Apr 2013 11:41:48 -0400 From: KOSAKI Motohiro User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 MIME-Version: 1.0 To: Cody P Schafer CC: Andrew Morton , Mel Gorman , Linux MM , LKML , kosaki.motohiro@gmail.com Subject: Re: [PATCH 3/3] mm: when handling percpu_pagelist_fraction, use on_each_cpu() to set percpu pageset fields. References: <1365194030-28939-1-git-send-email-cody@linux.vnet.ibm.com> <1365194030-28939-4-git-send-email-cody@linux.vnet.ibm.com> In-Reply-To: <1365194030-28939-4-git-send-email-cody@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 631 Lines: 17 (4/5/13 4:33 PM), Cody P Schafer wrote: > In free_hot_cold_page(), we rely on pcp->batch remaining stable. > Updating it without being on the cpu owning the percpu pageset > potentially destroys this stability. > > Change for_each_cpu() to on_each_cpu() to fix. > > Signed-off-by: Cody P Schafer Acked-by: KOSAKI Motohiro -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/