Re: [PATCH 14/16] x86: Unify CPU -> NUMA node mapping between 32and 64bit

From: Thomas Gleixner
Date: Thu Dec 09 2010 - 16:49:28 EST


On Sat, 27 Nov 2010, Tejun Heo wrote:

> Unlike 64bit, 32bit has been using its own cpu_to_node_map[] for CPU
> -> NUMA node mapping. Replace it with early_percpu variable
> x86_cpu_to_node_map and share the mapping code with 64bit.
>
> * USE_PERCPU_NUMA_NODE_ID is now enabled for 32bit too.
>
> * x86_cpu_to_node_map and numa_set/clear_node() are moved from numa_64
> to numa. For now, x86_cpu_to_node_map is initialized with 0 instead
> of NUMA_NO_NODE. This is to avoid introducing unexpected behavior

That's true for 32bit only, right? I actually had to dig into the code
to verify this. Please make this clear for the casual reader.

Thanks,

tglx
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