linux-kernel - Re: [PATCH 6/7] sched: Delete rq::skip_clock

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Message-ID: <1411274247.4081.4.camel@marge.simpson.net>
Date:	Sun, 21 Sep 2014 06:37:27 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Kirill Tkhai <tkhai@...dex.ru>, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...hat.com>,
	Kirill Tkhai <ktkhai@...allels.com>
Subject: Re: [PATCH 6/7] sched: Delete rq::skip_clock_update == -1

On Sat, 2014-09-20 at 21:01 +0200, Peter Zijlstra wrote: 
> On Sat, Sep 20, 2014 at 08:51:46PM +0400, Kirill Tkhai wrote:
> > From: Kirill Tkhai <ktkhai@...allels.com>
> > 
> > Idle class task is always queued, so we can safely remove "-1" case here.
> 
> Tag you're it :-)
> 
> https://lkml.org/lkml/2014/4/8/295

Maybe it should be given the too annoying to live treatment.  Saving
fastpath cycles is great, corner cases less so.

-Mike

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