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Date:	Mon, 20 Sep 2010 13:40:55 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Michael Cree <mcree@...on.net.nz>
Cc:	Miklos Szeredi <miklos@...redi.hu>,
	James.Bottomley@...senPartnership.com, benh@...nel.crashing.org,
	dhowells@...hat.com, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Subject: Re: memory barrier question

On Tue, Sep 21, 2010 at 08:26:14AM +1200, Michael Cree wrote:
> On 21/09/10 06:25, Paul E. McKenney wrote:
> >But do we really care about Alpha anymore?  (I can see it now... The
> >Alpha portion of the kernel tree moves to staging...)
> 
> I do.
> 
> Sent from my Compaq Alpha XP1000 :-)

In that case, an smp_read_barrier_depends() or rcu_dereference() is
also required...

							Thanx, Paul
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