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SubjectRe: [RFC][PATCH 0/4] Redesign cpu_hotplug locking.

* Linus Torvalds <torvalds@osdl.org> wrote:

> I personally doubt that it's the case that we'd want to accelerate
> inclusion - very few things actually do CPU hotplug, and right now the
> only way to even hit the sequences in normal use is literally just the
> "suspend under SMP" case that hasn't historically worked very well
> anyway, but was what made at least me personally aware of the problems
> ;^).

there's also bootup on SMP that is technically a series of hot-cpu-add
events. That already tests some aspects of it. Maybe we should turn
shutdown into the logical reverse: into a series of hot-cpu-remove
events?

Ingo
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