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

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Message-ID: <47a10932-b485-cf3f-bf39-ccf3026a960f@linaro.org>
Date:   Wed, 22 Feb 2017 22:55:04 +0800
From:   Alex Shi <alex.shi@...aro.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Mike Galbraith <efault@....de>,
        LKML <linux-kernel@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Rik van Riel <riel@...hat.com>
Subject: Re: 9908859acaa9 cpuidle/menu: add per CPU PM QoS resume latency
 consideration

> 
> 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! :)