Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751583AbWLQBDs (ORCPT ); Sat, 16 Dec 2006 20:03:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751585AbWLQBDs (ORCPT ); Sat, 16 Dec 2006 20:03:48 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:57494 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751582AbWLQBDr (ORCPT ); Sat, 16 Dec 2006 20:03:47 -0500 Date: Sun, 17 Dec 2006 10:02:58 +0900 From: KAMEZAWA Hiroyuki To: Christoph Lameter Cc: linux-kernel@vger.kernel.org, akpm@osdl.org, clameter@engr.sgi.com, apw@shadowen.org, heiko.carstens@de.ibm.com, bob.picco@hp.com Subject: Re: [PATCH][2.6.20-rc1-mm1] sparsemem vmem_map optimzed pfn_valid() [0/2] Message-Id: <20061217100258.faf504a9.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: References: <20061216173136.fbc91fa6.kamezawa.hiroyu@jp.fujitsu.com> X-Mailer: Sylpheed version 2.2.0 (GTK+ 2.6.10; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 777 Lines: 23 On Sat, 16 Dec 2006 10:38:53 -0800 (PST) Christoph Lameter wrote: > On Sat, 16 Dec 2006, KAMEZAWA Hiroyuki wrote: > > > By this, we'll not access mem_section[] in usual ops. > > Why do we need mem_section? We have a page table that fulfills the same > role. > Basically, we don't need it. But I use mem_section[] in bootstrap and I want to keep patches small in this time. I think it's not too late that we'll consider removing it after implementing memory hot unplug.(and confirm we never use it.) -Kame - 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/