linux-kernel - Re: sched: add notifier for cross-cpu migrations

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Message-ID: <20130710143902.GA28514@gmail.com>
Date:	Wed, 10 Jul 2013 16:39:02 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	mtosatti@...hat.com, mingo@...hat.com, gleb@...hat.com,
	glommer@...allels.com, tglx@...utronix.de, jeremy@...p.org,
	rostedt@...dmis.org, linux-kernel@...r.kernel.org
Subject: Re: sched: add notifier for cross-cpu migrations


* Peter Zijlstra <peterz@...radead.org> wrote:

> Hi,
> 
> I just stumbled over commit 582b336ec2 and had a massive WTF moment.
> 
> The Changelog -- empty!
> The Implementation -- complete crap!
> 
> fail^2.
> 
> A git grep later I find its x86_64 paravirt only.. for this we add 
> unconditional crap to the scheduler?
> 
> At the _very_ least this should have been wrapped in a static_key and 
> the changelog should have given some clue as to the what and why of this 
> code.

My bad for letting it slip through...

Marcelo, mind implementing the suggestions from Peter?

Thanks,

	Ingo
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