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    SubjectRe: [PATCH] percpu data: only iterate over possible CPUs
    Andrew Morton <> wrote:
    > Users of __GENERIC_PER_CPU definitely need cpu_possible_map to be initialised
    > by the time setup_per_cpu_areas() is called,

    err, they'll need it once Eric's
    dont-waste-percpu-memory-on-not-possible-CPUs patch is merged..

    > so I think it makes sense to
    > say "thou shalt initialise cpu_possible_map in setup_arch()".
    > I guess Xen isn't doing that. Can it be made to?

    Lame fix: cpu_possible_map = (1<<NR_CPUS)-1 in setup_arch().
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