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Date: Mon, 31 Jan 2011 11:32:20 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Torben Hohn <torbenh@gmx.de>
cc: LKML <linux-kernel@vger.kernel.org>, Peter Zijlstra <peterz@infradead.org>,
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        Matt Turner <mattst88@gmail.com>, Richard Henderson <rth@twiddle.net>
Subject: Re: [PATCH v2 05/20] alpha: change do_timer() to xtime_update()
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On Mon, 31 Jan 2011, Thomas Gleixner wrote:

> On Thu, 27 Jan 2011, Torben Hohn wrote:
> 
> > xtime_update() takes the xtime_lock itself.
> > state does not to be protected with this lock.
> > its only touched here and during init.
> 
> xtime_lock very well serializes the access to state on
> SMP. timer_interrupt() is called on each cpu. So that wont work.

Hmm. No. It's bound to boot_cpu_id.