linux-kernel - Re: [PATCH] hrtimers: Special-case zero length sleeps

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Message-ID: <20120215204338.GA30191@srcf.ucam.org>
Date:	Wed, 15 Feb 2012 20:43:38 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [PATCH] hrtimers: Special-case zero length sleeps

On Wed, Feb 15, 2012 at 09:40:28PM +0100, Peter Zijlstra wrote:
> On Wed, 2012-02-15 at 20:38 +0000, Matthew Garrett wrote:
> > Application authors do seem to have ended up under the belief 
> > that sleep(0) is a meaningful thing to do, and the internet seems to be 
> > full of suggestions to use it rather than sched_yield().
> 
> http://xkcd.com/386/

I'm not even going to pretend to disagree. The question is whether we 
want to support their breakage anyway.
-- 
Matthew Garrett | mjg59@...f.ucam.org
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