linux-kernel - Re: [PATCH 8/5] llist: Remove cpu

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Message-ID: <1315925606.5977.18.camel@twins>
Date:	Tue, 13 Sep 2011 16:53:26 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Avi Kivity <avi@...hat.com>
Cc:	Huang Ying <ying.huang@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH 8/5] llist: Remove cpu_relax() usage in cmpxchg loops

On Tue, 2011-09-13 at 17:51 +0300, Avi Kivity wrote:
> 
> I hate arguing while agreeing, but the issue isn't that we don't spend a 
> significant time spinning, but that there is no owner.  Should the other 
> cpu go away, we just pick up a new copy of oldval and complete the 
> transaction. 

Ah, ok. Yes that too ;-)
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