Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755909AbZF2XlV (ORCPT ); Mon, 29 Jun 2009 19:41:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752220AbZF2XlG (ORCPT ); Mon, 29 Jun 2009 19:41:06 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:45790 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751486AbZF2XlE (ORCPT ); Mon, 29 Jun 2009 19:41:04 -0400 Date: Mon, 29 Jun 2009 16:39:37 -0700 From: Andrew Morton To: Christoph Lameter Cc: tj@kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org, mingo@elte.hu, andi@firstfloor.org, hpa@zytor.com, tglx@linutronix.de Subject: Re: [PATCHSET] percpu: generalize first chunk allocators and improve lpage NUMA support Message-Id: <20090629163937.94c8cedd.akpm@linux-foundation.org> In-Reply-To: References: <1245850216-31653-1-git-send-email-tj@kernel.org> <20090624165508.30b88343.akpm@linux-foundation.org> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 675 Lines: 17 On Mon, 29 Jun 2009 19:20:53 -0400 (EDT) Christoph Lameter wrote: > On Wed, 24 Jun 2009, Andrew Morton wrote: > > > I assume from the tremendous number of for_each_possible_cpu()s that > > CPU hotplug awareness won't be happening. > > Per cpu areas are allocated for all possible processors. No need to handle > offlining and onlining them. Well yes. My point is that this is a bug-not-a-feature ;) -- 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/