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From: Mike Travis <travis@sgi.com>
To: Ingo Molnar <mingo@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jack Steiner <steiner@sgi.com>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hy>
Subject: [PATCH 02/16] x86: enable MAXSMP
Date: Mon, 15 Dec 2008 18:24:11 -0800	[thread overview]
Message-ID: <20081216022410.137548000@polaris-admin.engr.sgi.com> (raw)
In-Reply-To: <20081216022409.679598000@polaris-admin.engr.sgi.com>

[-- Attachment #1: 0001-x86-enable-MAXSMP.patch --]
[-- Type: text/plain, Size: 1225 bytes --]

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 <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hy>
---
 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

-- 

  parent reply	other threads:[~2008-12-16  2:26 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-16  2:24 [PATCH 00/16] cpumask: consolidate and apply x86 cpumask changes Mike Travis
2008-12-16  2:24 ` [PATCH 01/16] x86 smp: modify send_IPI_mask interface to accept cpumask_t pointers Mike Travis
2008-12-16  2:24 ` Mike Travis [this message]
2008-12-16  2:24 ` [PATCH 03/16] x86: move and enhance debug printk for nr_cpu_ids etc Mike Travis
2008-12-16  2:24 ` [PATCH 04/16] x86: Add cpu_mask_to_apicid_and Mike Travis
2008-12-16  2:24 ` [PATCH 05/16] x86: update add-cpu_mask_to_apicid_and to use struct cpumask* Mike Travis
2008-12-16  2:24 ` [PATCH 06/16] x86: Update io_apic.c to use new cpumask API Mike Travis
2008-12-16  2:24 ` [PATCH 07/16] xen: convert to cpumask_var_t and new cpumask primitives Mike Travis
2008-12-16  2:24 ` [PATCH 08/16] x86: fixup_irqs() doesnt need an argument Mike Travis
2008-12-16  2:24 ` [PATCH 09/16] x86: cosmetic changes apic-related files Mike Travis
2008-12-16  2:24 ` [PATCH 10/16] x86: Set CONFIG_NR_CPUS even on UP Mike Travis
2008-12-16  2:24 ` [PATCH 11/16] x86: prepare for cpumask iterators to only go to nr_cpu_ids Mike Travis
2008-12-16  2:24 ` [PATCH 12/16] x86: Use cpumask accessors code for possible/present maps Mike Travis
2008-12-16  2:24 ` [PATCH 13/16] x86: Remove cpumask games in x86/kernel/cpu/intel_cacheinfo.c Mike Travis
2008-12-16  2:24 ` [PATCH 14/16] x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c Mike Travis
2008-12-16  2:24 ` [PATCH 15/16] x86: xen: use smp_call_function_many() Mike Travis
2008-12-16  2:24 ` [PATCH 16/16] x86: Introduce topology_core_cpumask()/topology_thread_cpumask() Mike Travis

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