[PATCH] percpu: add comment to per_cpu_ptr_to_phys

[Tejun Heo]

Hello,

On Wed, Nov 23, 2011 at 04:45:43PM +0800, Dave Young wrote:
> add comments about current per_cpu_ptr_to_phys implementation
> to explain why the logic is more complicated than necessary.
> 
> Signed-off-by: Dave Young <dyoung at redhat.com>

Moved the comment into the kerneldoc comment and applied to
percpu/for-3.2-fixes.

Thank you very much.

-- 
tejun