Message-ID: <4CED6F14.4080003@goop.org>
Date: Wed, 24 Nov 2010 12:01:24 -0800
From: Jeremy Fitzhardinge <jeremy@goop.org>
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To: Christoph Lameter <cl@linux.com>
CC: Pekka Enberg <penberg@kernel.org>, akpm@linux-foundation.org,
        Pekka Enberg <penberg@cs.helsinki.fi>, Ingo Molnar <mingo@elte.hu>,
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        Eric Dumazet <eric.dumazet@gmail.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Tejun Heo <tj@kernel.org>
Subject: Re: [thiscpuops upgrade 10/10] Lockless (and preemptless) fastpaths
 for slub
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On 11/24/2010 11:53 AM, Christoph Lameter wrote:
> ACCESS_ONCE does not prevent reordering if used once it seems when one
> reads the comments. ACCESS_ONCE() uses volatile? Uggh.

Hm, good point.  I'll need to review my uses of it.

    J
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