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SubjectRe: perf_events: questions about cpu_has_ht_siblings() and offcore support
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On Fri, 2011-04-22 at 16:41 +0200, Stephane Eranian wrote:
> I assume that's because hotplug
> cpu is inherently serialized. You cannot have a CPU going offline
> and one going online at the same time. is that right?

Exactly, that's all serialized under the hotpug mutex



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