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

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Message-ID: <2050688.jCOqd8xbcD@aspire.rjw.lan>
Date:   Thu, 23 Feb 2017 13:15:21 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Alex Shi <alex.shi@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Mike Galbraith <efault@....de>,
        LKML <linux-kernel@...r.kernel.org>,
        Rik van Riel <riel@...hat.com>
Subject: Re: 9908859acaa9 cpuidle/menu: add per CPU PM QoS resume latency consideration

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.