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

    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.



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