Re: [PATCH] adjust root-domain->online span in response to hotplugevent

[Gregory Haskins]

Dmitry Adamushko wrote:
> On 08/03/2008, Gregory Haskins <ghaskins@xxxxxxxxxx> wrote:
>
> I guess, it's in arch-specific code. e.g. for x86-64,
>
> down:
>
> kernel/cpu.c :: _cpu_down -> take_cpu_down() -> __cpu_disable() [
> arch/x86/kernel/smpboot_64.c ] -> cpu_clear(cpu, cpu_online_map)
>
> up:
>
> kernel/cpu.c :: _cpu_up() -> __cpu_up [ arch/x86/kernel/smpboot_64.c ]
> -> do_boot_cpu() -> start_secondary() [ runs on a to-be-online cpu ]
> -> cpu_set(smp_processor_id(), cpu_online_map)

Thanks Dmitry!  Your tip helped me to figure out what the real solution 
should be.

Regards,
-Greg
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