2008-01-28 02:21:46

by Yinghai Lu

Subject: [PATCH] x86_64: not set boot cpu in cpu_online_map at smp_prepare_boot_cpu

[PATCH] x86_64: not set boot cpu in cpu_online_map at smp_prepare_boot_cpu

in init/main.c boot_cpu_init() does that before

Signed-off-by: Yinghai Lu <[email protected]>

Index: linux-2.6/arch/x86/kernel/smpboot_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/smpboot_64.c
+++ linux-2.6/arch/x86/kernel/smpboot_64.c
@@ -921,7 +921,7 @@ void __init smp_prepare_cpus(unsigned in
void __init smp_prepare_boot_cpu(void)
{
int me = smp_processor_id();
- cpu_set(me, cpu_online_map);
+ /* already set me in cpu_online_map in boot_cpu_init() */
cpu_set(me, cpu_callout_map);
per_cpu(cpu_state, me) = CPU_ONLINE;
}

2008-01-28 12:41:20

by Ingo Molnar

Subject: Re: [PATCH] x86_64: not set boot cpu in cpu_online_map at smp_prepare_boot_cpu

* Yinghai Lu <[email protected]> wrote:

> [PATCH] x86_64: not set boot cpu in cpu_online_map at
> smp_prepare_boot_cpu
>
> in init/main.c boot_cpu_init() does that before

thanks, applied.

Ingo