[PATCH] x86: allow 8 more cpus could be used

From: Yinghai Lu
Date: Thu Jan 29 2009 - 17:19:54 EST


Impact: fix left out MARCO

X86_PC will be always enabled. so need to check if we have bigsmp support built
in before cut off more than 8 cpus.

otherwise only get 8 cpus.

Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>

---
arch/x86/kernel/smpboot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/arch/x86/kernel/smpboot.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/smpboot.c
+++ linux-2.6/arch/x86/kernel/smpboot.c
@@ -1000,7 +1000,7 @@ static int __init smp_sanity_check(unsig
{
preempt_disable();

-#if defined(CONFIG_X86_PC) && defined(CONFIG_X86_32)
+#if defined(CONFIG_X86_PC) && !defined(CONFIG_X86_BIGSMP)
if (def_to_bigsmp && nr_cpu_ids > 8) {
unsigned int cpu;
unsigned nr;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/