Re: [PATCH v2.1 01/10] cpu: Introduce clear_tasks_mm_cpumask()helper

[Oleg Nesterov]

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.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/