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SubjectRe: [RFC][PATCH 0/4] Redesign cpu_hotplug locking.
On Sun, 27 Aug 2006 00:05:25 +0200
Ingo Molnar <mingo@elte.hu> wrote:

>
> * 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?
>

Would be logical, but we would want to avoid making CONFIG_HOTPLUG_CPU a
requirement for SMP.
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