Messages in this thread | | | Date | Mon, 26 Mar 2012 19:04:43 +0200 | From | Oleg Nesterov <> | Subject | Re: [PATCH v2.1 01/10] cpu: Introduce clear_tasks_mm_cpumask() helper |
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On 03/26, Peter Zijlstra wrote: > > On Sun, 2012-03-25 at 19:42 +0200, Oleg Nesterov wrote: > > __cpu_disable() is called by __stop_machine(), we know that nobody > > can preempt us and other CPUs can do nothing. > > It would be very good to not rely on that though,
Yes, yes, perhaps I wasn't clear but I think the patches are fine.
> I would love to get > rid of the stop_machine usage in cpu hotplug some day.
Interesting... Why? I mean, why do you dislike stop_machine() in _cpu_down() ? Just curious.
Oleg.
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