Re: [PATCH 05/17] x86-64: Move cpu number from PDA to per-cpu and consolidate with 32-bit.

From: Brian Gerst
Date: Sun Jan 18 2009 - 00:59:46 EST

On Sun, Jan 18, 2009 at 12:05 AM, Tejun Heo <tj@xxxxxxxxxx> wrote:
> Hello,
>> --- a/arch/x86/kernel/setup_percpu.c
>> +++ b/arch/x86/kernel/setup_percpu.c
>> @@ -147,6 +147,9 @@ unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
>> #endif
>> EXPORT_SYMBOL(__per_cpu_offset);
>> +DEFINE_PER_CPU(int, cpu_number);
>> +EXPORT_PER_CPU_SYMBOL(cpu_number);
> This is inside CONFIG_HAVE_SETUP_PER_CPU_AREA. I think voyage would
> be unhappy with this change.

Is there any specific reason Voyager doesn't use the x86
setup_per_cpu_areas() function? I don't see anything on a quick
glance that would not work. The x86 code is pretty much a superset of
the default code in init/main.c.

Brian Gerst
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