linux-kernel - Re: [PATCH V7 7/7] cpufreq: Add QoS requests for userspace constraints

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Message-ID: <CAJZ5v0h+wm5d4d3_NfYp-LY=oaJkTZaMMfdR=EjTOOkhw9PFZw@mail.gmail.com>
Date:   Fri, 5 Jul 2019 13:17:40 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Rafael Wysocki <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V7 7/7] cpufreq: Add QoS requests for userspace constraints

On Fri, Jul 5, 2019 at 12:52 PM Viresh Kumar <viresh.kumar@...aro.org> wrote:
>
> This implements QoS requests to manage userspace configuration of min
> and max frequency.
>
> Reviewed-by: Matthias Kaehlcke <mka@...omium.org>
> Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
> V6->V7:
> - We can't call dev_pm_qos_remove_request() for a request which was
>   never added. This happened in one of the error paths. Fixed that by
>   allocating the requests only right before we try to add them and also
>   take care of things properly during errors.
>
> @Rafael: Please apply this version instead of the diff I supplied on the
> WARN email earlier. This has proper protection in place at many places.

Applied, thanks!