* Peter Zijlstra <pet...@infradead.org> wrote:
> On Thu, Oct 10, 2013 at 04:57:38PM +0200, Ingo Molnar wrote:
>
> > So ... why not make it _really_ cheap, i.e. the read lock costing
> > nothing, and tie CPU hotplug to freezing all tasks in the system?
>
> Such that we freeze regular tasks in userspace and kernel tasks in their
> special freezer callback so as to guarantee minimal state?
Yes, absolutely.
Thanks,
Ingo
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