Re: 9908859acaa9 cpuidle/menu: add per CPU PM QoS resume latency consideration

From: Alex Shi
Date: Thu Feb 23 2017 - 09:03:06 EST

On 02/23/2017 08:15 PM, Rafael J. Wysocki wrote:
> On Wednesday, February 22, 2017 10:55:04 PM Alex Shi wrote:
>>> Its not hard; spinlock_t ends up being a mutex, and this is ran from the
>>> idle thread. What thread do you think we ought to run when we block
>>> idle?
>> Straight right.
>> Thanks for explanations! :)
> I overlooked that, sorry.
> Shall we revert?
> I don't want RT to be broken because of this.

The RT kernel had a fix already. :)
This feature is very useful to save power of cpu. We could have a better fix
to keep this feature and good for RT.