From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 21 Jan 2010 10:56:53 +0000
Subject: Re: Lots of bugs with current->state = TASK_*INTERRUPTIBLE
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To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Julia Lawall <julia@diku.dk>, Steven Rostedt <rostedt@goodmis.org>, LKML <linux-kernel@vger.kernel.org>, kernel-janitors <kernel-janitors@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>, linux-arch@vger.kernel.org, Greg KH <greg@kroah.com>, Andy Whitcroft <apw@canonical.com>

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