Subject: [PATCH 0/1] ppc64: Convert cpu_sibling_map to a per_cpu data array ppc64 v2

From: [email-masked]
Date: Mon, 17 Sep 2007 11:35:07 -0700

Stephen Rothwell wrote:
> On Mon, 17 Sep 2007 16:28:31 +1000 Stephen Rothwell <[email-masked]> wrote:
>> 	the topology (on my POWERPC5+ box) is not correct:
>>
>> cpu0/topology/thread_siblings:0000000f
>> cpu1/topology/thread_siblings:0000000f
>> cpu2/topology/thread_siblings:0000000f
>> cpu3/topology/thread_siblings:0000000f
>>
>> it used to be:
>>
>> cpu0/topology/thread_siblings:00000003
>> cpu1/topology/thread_siblings:00000003
>> cpu2/topology/thread_siblings:0000000c
>> cpu3/topology/thread_siblings:0000000c
> 
> This would be because we are setting up the cpu_sibling map before we
> call setup_per_cpu_areas().

The following patch hopefully should fix this problem.  I'm
not able to build or test it but the few references to 
cpu_sibling_map seem to all occur well after setup_per_cpu_areas
is called.

Thanks Stephen for checking this out!

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