linux-kernel - Re: [PATCH 2/2] cpuidle/drivers/menu: Remove get

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Message-ID: <20181004093644.GL19272@hirez.programming.kicks-ass.net>
Date:   Thu, 4 Oct 2018 11:36:44 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     "Rafael J. Wysocki" <rafael@...nel.org>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>,
        Todd Kjos <tkjos@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Colin Cross <ccross@...roid.com>,
        Ramesh Thomas <ramesh.thomas@...el.com>,
        Mel Gorman <mgorman@...e.de>, Ingo Molnar <mingo@...hat.com>,
        Rafael Wysocki <rafael.j.wysocki@...el.com>,
        Alex Shi <alex.shi@...aro.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] cpuidle/drivers/menu: Remove get_loadavg in the
 performance multiplier

On Thu, Oct 04, 2018 at 10:47:04AM +0200, Rafael J. Wysocki wrote:

> > The comment is irrelevant as the remaining function is used for
> > statistics in addition to the perf multiplier. It does exactly what the
> > function name is.
> 
> Which is my point.  It shouldn't be dropped entirely, but updated IMO.

But the function name isn't the problem.. the problem that any use of
the number is fundamentally broken.