From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1755577AbcASNuL (ORCPT <rfc822;w@1wt.eu>);
	Tue, 19 Jan 2016 08:50:11 -0500
Received: from v094114.home.net.pl ([79.96.170.134]:43903 "HELO
	v094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with SMTP id S1754015AbcASNuG (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Tue, 19 Jan 2016 08:50:06 -0500
From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Ingo Molnar <mingo@kernel.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
        Sudeep Holla <sudeep.holla@arm.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Linux PM list <linux-pm@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>
Subject: Re: [PATCH 0/2] cpuidle optimizations (on top of linux-next)
Date: Tue, 19 Jan 2016 14:50:48 +0100
Message-ID: <7943578.tuUzrzI8EM@vostro.rjw.lan>
User-Agent: KMail/4.11.5 (Linux/4.4.0; KDE/4.11.5; x86_64; ; )
In-Reply-To: <20160119132858.GA32559@gmail.com>
References: <1621492.NI2xz9vt7M@vostro.rjw.lan> <CAJZ5v0hgKfpi2PDbzk5Rvnio1vC3onaWkJ-2ccg5KAd=r3qPBA@mail.gmail.com> <20160119132858.GA32559@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="utf-8"
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tuesday, January 19, 2016 02:28:58 PM Ingo Molnar wrote:
> 
> * Rafael J. Wysocki <rafael@kernel.org> wrote:
> 
> > On Tue, Jan 19, 2016 at 8:28 AM, Ingo Molnar <mingo@kernel.org> wrote:
> > >
> > > * Sudeep Holla <sudeep.holla@arm.com> wrote:
> > >
> > >> On 15/01/16 23:53, Rafael J. Wysocki wrote:
> > >> >Hi,
> > >> >
> > >> >When I was looking at the cpuidle code after the Sudeeps's problem report,
> > >> >it occured to me that we had some pointless overhead there, so two
> > >> >changes to reduce it follow.
> > >> >
> > >> >[1/2] Make the fallback to to default_idle_call() in call_cpuidle()
> > >> >       unnecessary and drop it.
> > >> >[2/2] Make menu_select() avoid checking states that don't need to
> > >> >       (or even shouldn't) be checked when making the selection.
> > >> >
> > >>
> > >> Tested-by: Sudeep Holla <sudeep.holla@arm.com>
> > >
> > > Rafael, can I pick these up into the scheduler tree?
> > 
> > They won't apply at this point as one commit they depend on is in my
> > linux-next branch waiting for the next push.
> > 
> > Would it be a problem if they went in through the PM tree instead?
> 
> Absolutely no problem:
> 
> Acked-by: Ingo Molnar <mingo@kernel.org>

OK, thanks!

Rafael