From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yinghai Lu Subject: Re: [PATCH 11/35] lmb: Add find_memory_core_early() Date: Fri, 14 May 2010 09:44:46 -0700 Message-ID: <4BED7DFE.2090108@oracle.com> References: <1273804238.21352.389.camel@pasglop> <4BECF00D.6080800@oracle.com> <1273825187.21352.590.camel@pasglop> <20100514.013012.13730149.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from rcsinet10.oracle.com ([148.87.113.121]:26781 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753442Ab0ENQk3 (ORCPT ); Fri, 14 May 2010 12:40:29 -0400 In-Reply-To: <20100514.013012.13730149.davem@davemloft.net> Sender: linux-arch-owner@vger.kernel.org List-ID: To: David Miller Cc: benh@kernel.crashing.org, mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com, akpm@linux-foundation.org, torvalds@linux-foundation.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org On 05/14/2010 01:30 AM, David Miller wrote: > From: Benjamin Herrenschmidt > Date: Fri, 14 May 2010 18:19:47 +1000 > > >> OK, I'll have to let Davem deal with the fine point of the sparc bits, >> but I think basically sparc has CONFIG_ARCH_POPULATES_NODE_MAP set, but >> the way it's NUMA affinity works, the early_node_map[] is crap, you >> cannot rely on the ranges in there. >> > > Right, we can't use early_node_map[] on sparc, because the NUMA > mappings are far too granular to use that kind of representation. > good to know. early_node_map[] doesn't have enough slot? YH