From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: Lots of bugs with current->state = TASK_*INTERRUPTIBLE
Date: Thu, 21 Jan 2010 11:56:53 +0100
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To: Frederic Weisbecker <fweisbec@gmail.com>
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On Thu, 2010-01-21 at 11:53 +0100, Frederic Weisbecker wrote:

> Looks fine as spin_unlock includes a memory barrier, IIRC.

It doesn't actually, see Documentation/memory-barriers.txt