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

From: travis
Date: Mon Sep 17 2007 - 14:36:43 EST



Stephen Rothwell wrote:
> On Mon, 17 Sep 2007 16:28:31 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> 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!

--
-
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/