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Subject: Re: [PATCH 8/5] llist: Remove cpu_relax() usage in cmpxchg loops
From: Peter Zijlstra <peterz@infradead.org>
To: Avi Kivity <avi@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org, Andi Kleen <andi@firstfloor.org>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue, 13 Sep 2011 16:53:26 +0200
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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 ;-)