Re: [RFC PATCH v3 1/9] CPU hotplug: Provide APIs to prevent CPUoffline from atomic context

[Oleg Nesterov]

On 12/10, Srivatsa S. Bhat wrote:
>
> On 12/10/2012 12:44 AM, Oleg Nesterov wrote:
>
> > But yes, it is easy to blame somebody else's code ;) And I can't suggest
> > something better at least right now. If I understand correctly, we can not
> > use, say, synchronize_sched() in _cpu_down() path
>
> We can't sleep in that code.. so that's a no-go.

But we can?

Note that I meant _cpu_down(), not get_online_cpus_atomic() or take_cpu_down().

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/