Re: [patch V2 00/24] cpu/hotplug: Convert get_online_cpus() to a percpu_rwsem

Sebastian Siewior
2017-04-27T08:27:29Z

On 2017-04-26 11:32:36 [+0100], Mark Rutland wrote:
> > So we could end up calling static_branch_enable_cpuslocked()
> > without actually holding the lock. Should we do a cpu_hotplug_begin/done in
> > setup_cpu_feature_capabilities ? I agree it doesn't look that nice. Thoughts ?
>
> I agree that's hideous, but it looks like the only choice given the
> hotplug rwsem cahnges. :/

would work for you to provide a locked and unlocked version?

> I can spin a v2 with that and the typo fixes.
>
> Thanks,
> Mark.

Sebastian