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DateTue, 25 Jul 2006 13:57:16 -0700 (PDT)
FromLinus Torvalds <>
SubjectRe: remove cpu hotplug bustification in cpufreq.

On Tue, 25 Jul 2006, Arjan van de Ven wrote:
>
> so cpufreq_set_policy() takes policy->lock, and then calls into the
> userspace governer code
> (__cpufreq_set_policy->cpufreq_governor->cpufreq_governor_userspace)
> which calls __cpufreq_driver_target... which does lock_cpu_hotplug().

Yeah. I think the target should _not_ take the lock_cpu_hotplug(), since 
the call chain (much much earlier) should have done it. 

Ie we should probably do it at the "cpufreq_set_policy()" level.

>      Arjan -- who's just cleaned Linus' wall to prepare it for more head
> banging

It's not actually "my wall". I'll happily share it with anybody else.

Please. Take my wall.

		Linus
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