From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932710AbXCUQJc (ORCPT ); Wed, 21 Mar 2007 12:09:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932715AbXCUQJc (ORCPT ); Wed, 21 Mar 2007 12:09:32 -0400 Received: from one.firstfloor.org ([213.235.205.2]:43995 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932710AbXCUQJb (ORCPT ); Wed, 21 Mar 2007 12:09:31 -0400 Date: Wed, 21 Mar 2007 17:09:29 +0100 From: Andi Kleen To: Pekka J Enberg Cc: Christoph Lameter , Eric Dumazet , Andi Kleen , Andrew Morton , linux kernel Subject: Re: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead of struct slab Message-ID: <20070321160929.GB25583@one.firstfloor.org> References: <20070321102231.7288f231.dada1@cosmosbay.com> <84144f020703210521q10ad95d4g760010bd4388c71f@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 21, 2007 at 05:42:22PM +0200, Pekka J Enberg wrote: > On Wed, 21 Mar 2007, Christoph Lameter wrote: > > None of that please. The page flags already contain a node number that is > > accessible via page_to_nid(). Just make sure that we never put a slab onto > > the wrong node. > > Oh well, here's a patch to find out. (I don't have a NUMA box.) You can always use numa emulation on x86-64. Boot with numa=fake=NODES -Andi