From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964875AbWBGSos (ORCPT ); Tue, 7 Feb 2006 13:44:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964881AbWBGSos (ORCPT ); Tue, 7 Feb 2006 13:44:48 -0500 Received: from smtp.osdl.org ([65.172.181.4]:35517 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S964875AbWBGSor (ORCPT ); Tue, 7 Feb 2006 13:44:47 -0500 Date: Tue, 7 Feb 2006 10:43:55 -0800 (PST) From: Linus Torvalds To: Dipankar Sarma cc: Andrew Morton , dada1@cosmosbay.com, heiko.carstens@de.ibm.com, linux-kernel@vger.kernel.org, davem@davemloft.net, James.Bottomley@steeleye.com, mingo@elte.hu, axboe@suse.de, anton@samba.org, wli@holomorphy.com, ak@muc.de Subject: Re: [PATCH] percpu data: only iterate over possible CPUs In-Reply-To: <20060207183018.GA29056@in.ibm.com> Message-ID: References: <200602051959.k15JxoHK001630@hera.kernel.org> <20060207151541.GA32139@osiris.boeblingen.de.ibm.com> <43E8CA10.5070501@cosmosbay.com> <20060207093458.176ac271.akpm@osdl.org> <20060207183018.GA29056@in.ibm.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 8 Feb 2006, Dipankar Sarma wrote: > > One would think so, but I recall not all archs did that. Alpha for > example sets up cpu_possible_map in smp_prepare_cpus(). It however > makes more sense to fix the arch then use NR_CPUS, IMO. Ehh? alpha does it in setup_smp(), which in turn is called very early from setup_arch(). Were you perhaps thinking of something else? Or am I just going blind and confused? Linus