linux-kernel - Re: [PATCH v12 1/6] sched/core: uclamp: Extend CPU's cgroup controller

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Message-ID: <20190801104014.amwvjdvabedsd5t7@e110439-lin>
Date:   Thu, 1 Aug 2019 11:40:14 +0100
From:   Patrick Bellasi <patrick.bellasi@....com>
To:     Michal Koutný <mkoutny@...e.com>
Cc:     cgroups@...r.kernel.org, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Alessio Balsini <balsini@...roid.com>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Quentin Perret <quentin.perret@....com>,
        Joel Fernandes <joelaf@...gle.com>,
        Paul Turner <pjt@...gle.com>,
        Steve Muckle <smuckle@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Todd Kjos <tkjos@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Tejun Heo <tj@...nel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v12 1/6] sched/core: uclamp: Extend CPU's cgroup
 controller

On 25-Jul 13:41, Michal Koutný wrote:
> On Thu, Jul 18, 2019 at 07:17:43PM +0100, Patrick Bellasi <patrick.bellasi@....com> wrote:
> > +static ssize_t cpu_uclamp_min_write(struct kernfs_open_file *of,
> > +				    char *buf, size_t nbytes,
> > +				    loff_t off)
> > +{
> > [...]
> > +static ssize_t cpu_uclamp_max_write(struct kernfs_open_file *of,
> > +				    char *buf, size_t nbytes,
> > +				    loff_t off)
> > +{
> > [...]
> These two functions are almost identical yet not trivial. I think it
> wouldn be better to have the code at one place only and distinguish by
> the passed clamp_id.

Good point, since the removal of the boundary checks on values we now
have two identical methods. I'll factor our the common code in a
single function.

Cheers,
Patrick

-- 
#include <best/regards.h>

Patrick Bellasi