Re: [PATCH 2/6] change alloc function in pcpu_alloc_pages

[Tejun Heo]

Hello,

On 04/14/2010 12:48 AM, Mel Gorman wrote:
> and the mapping table on x86 at least is based on possible CPUs in
> init_cpu_to_node() leaves the mapping as 0 if the APIC is bad or the numa
> node is reported in apicid_to_node as -1. It would appear on power that
> the node will be 0 for possible CPUs as well.
> 
> Hence, I believe this to be safe but a confirmation from Tejun would be
> nice. I would continue digging but this looks like an initialisation path
> so I'll move on to the next patch rather than spending more time.

This being a pretty cold path, I don't really see much benefit in
converting it to alloc_pages_node_exact().  It ain't gonna make any
difference.  I'd rather stay with the safer / boring one unless
there's a pressing reason to convert.

Thanks.

-- 
tejun
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