Date: Tue, 23 Nov 2010 21:09:53 -0600 (CST)
From: Christoph Lameter <cl@linux.com>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
cc: akpm@linux-foundation.org, Pekka Enberg <penberg@cs.helsinki.fi>,
        Ingo Molnar <mingo@elte.hu>, Peter Zijlstra <peterz@infradead.org>,
        linux-kernel@vger.kernel.org, Eric Dumazet <eric.dumazet@gmail.com>,
        Tejun Heo <tj@kernel.org>
Subject: Re: [thiscpuops upgrade 10/10] Lockless (and preemptless) fastpaths
 for slub
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References: <20101123235139.908255844@linux.com> <20101123235201.758191189@linux.com> <20101124010252.GB8264@Krystal> <20101124010554.GC8264@Krystal>
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On Tue, 23 Nov 2010, Mathieu Desnoyers wrote:

> Ah! I knew I was missing something: the second cmpxchg will fail because it
> expects "tid", but the value is now the "next_tid". So effectively, many
> instances of the same transaction can run concurrently, but only one will
> succeed.

Right.

> Sorry for the noise.

No its good to hear that you were not able to find a hole on first glance.
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