linux-kernel - Re: [PATCH V2 0/5] cpufreq: Use QoS layer to manage freq-constraints

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Message-ID: <2575955.AqKVkXLaMl@aspire.rjw.lan>
Date:   Thu, 21 Feb 2019 12:30:47 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Kevin Hilman <khilman@...nel.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
        Ulf Hansson <ulf.hansson@...aro.org>, linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>, mka@...omium.org,
        juri.lelli@...il.com, Qais.Yousef@....com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 0/5] cpufreq: Use QoS layer to manage freq-constraints

On Thursday, February 21, 2019 12:29:26 PM CET Viresh Kumar wrote:
> Hello,
> 
> This patchset attempts to manage CPU frequency constraints using the PM
> QoS framework. It only does the basic stuff right now and moves the
> userspace constraints to use the QoS infrastructure.
> 
> Todo:
> - Migrate all users to the QoS framework and get rid of cpufreq specific
>   notifiers.
> - Make PM QoS learn about the relation of CPUs in a policy, so a single
>   list of constraints is managed for all of them instead of per-cpu
>   constraints.
> 
> V1->V2:
> - The previous version introduced a completely new framework, this one
>   moves to PM QoS instead.
> - Lots of changes because of this.

Well, thanks for working on this, but I'm rather unlikely to look at it in
detail before 5.1-rc1 is released.

Cheers,
Rafael