Re: [PATCH/RFC 0/8] Numa: Use Generic Per-cpu Variables for numa_*_id()

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On Fri, 2010-03-05 at 10:19 +0900, KAMEZAWA Hiroyuki wrote:
> On Thu, 04 Mar 2010 12:06:54 -0500
> Lee Schermerhorn <lee.schermerhorn@xxxxxx> wrote:
> 
> > >nid-04:
> > >
> > >* Isn't #define numa_mem numa_node a bit dangerous?  Someone might use
> > >  numa_mem as a local variable name.  Why not define it as a inline
> > >  function or at least a macro which takes argument.
> > 
> > numa_mem and numa_node are the names of the per cpu variables, referenced
> > by __this_cpu_read().  So, I suppose we can rename them both something like:
> > percpu_numa_*.  Would satisfy your concern?
> > 
> > What do others think?
> > 
> > Currently I've left them as numa_mem and numa_node.
> > 
> 
> Could you add some documentation to Documentation/vm/numa ?
> about
>   numa_node_id()
>   numa_mem_id()
>   topics on memory-less node
>   (cpu-less node)


Hmmm.  Good idea.  I'll see what I can come up with.

Thanks,
Lee

>   
> 
> Recently I see this kind of topics on list but I'm not sure whether
> I catch the issues/changes correctly....
> 
> Thanks,
> -Kame
> 

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