From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 469186B0071 for ; Mon, 22 Nov 2010 10:40:09 -0500 (EST) Received: by gxk7 with SMTP id 7so4608358gxk.14 for ; Mon, 22 Nov 2010 07:40:07 -0800 (PST) Date: Mon, 22 Nov 2010 23:43:17 +0800 From: =?utf-8?Q?Am=C3=A9rico?= Wang Subject: Re: [patch 1/2] x86: add numa=possible command line option Message-ID: <20101122154317.GC4137@hack> References: <20101118041407.GA2408@shaohui> <20101118062715.GD17539@linux-sh.org> <20101118052750.GD2408@shaohui> <20101119003225.GB3327@shaohui> <20101121142615.GI9099@hack> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: owner-linux-mm@kvack.org To: David Rientjes Cc: =?utf-8?Q?Am=C3=A9rico?= Wang , Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , Greg Kroah-Hartman , Shaohui Zheng , Paul Mundt , Andrew Morton , Andi Kleen , Yinghai Lu , Haicheng Li , Randy Dunlap , linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org List-ID: On Sun, Nov 21, 2010 at 01:46:07PM -0800, David Rientjes wrote: >On Sun, 21 Nov 2010, AmA(C)rico Wang wrote: >> Also, numa=possible= is not as clear as numa=max=, for me at least. >> > >I like name, but it requires that you know how many nodes that system >already has. In other words, numa=possible=4 allows you to specify that 4 >additional nodes will be possible, but initially offline, for this or >other purposes. numa=max=4 would be no-op if the system actually had 4 >nodes. > >I chose numa=possible over numa=additional because it is more clearly tied >to node_possible_map, which is the only thing it modifies. Okay, I thought "possible" means "max", but "possible" means "addtional" here. It's clear for me now. Thanks! -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org