From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754660AbYLPC0a (ORCPT ); Mon, 15 Dec 2008 21:26:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752594AbYLPCYV (ORCPT ); Mon, 15 Dec 2008 21:24:21 -0500 Received: from relay2.sgi.com ([192.48.179.30]:50750 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751787AbYLPCYO (ORCPT ); Mon, 15 Dec 2008 21:24:14 -0500 Message-Id: <20081216022410.137548000@polaris-admin.engr.sgi.com> References: <20081216022409.679598000@polaris-admin.engr.sgi.com> User-Agent: quilt/0.46-1 Date: Mon, 15 Dec 2008 18:24:11 -0800 From: Mike Travis To: Ingo Molnar Cc: Rusty Russell , "H. Peter Anvin" , Stephen Rothwell , Thomas Gleixner , Jack Steiner , linux-kernel@vger.kernel.org, Ingo Molnar Subject: [PATCH 02/16] x86: enable MAXSMP Content-Disposition: inline; filename=0001-x86-enable-MAXSMP.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Impact: activates new off-stack cpumask code on MAXSMP (non-default) x86 configs Set MAXSMP to enable CONFIG_CPUMASK_OFFSTACK which moves cpumask's off the stack (and in structs) when using cpumask_var_t. Signed-off-by: Mike Travis Signed-off-by: Rusty Russell Acked-by: Ingo Molnar --- arch/x86/Kconfig | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8acab5b..09638b1 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -581,16 +581,17 @@ config IOMMU_HELPER config MAXSMP bool "Configure Maximum number of SMP Processors and NUMA Nodes" - depends on X86_64 && SMP && BROKEN + depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL + select CPUMASK_OFFSTACK default n help Configure maximum number of CPUS and NUMA Nodes for this architecture. If unsure, say N. config NR_CPUS - int "Maximum number of CPUs (2-512)" if !MAXSMP - range 2 512 depends on SMP + int "Maximum number of CPUs" if SMP && !MAXSMP + range 2 512 if SMP && !MAXSMP default "4096" if MAXSMP default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000 default "8" -- 1.6.0 --