linux-kernel - Re: Question about DEC Alpha memory ordering

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Message-ID: <20170213190839.GI10256@arm.com>
Date:   Mon, 13 Feb 2017 19:08:39 +0000
From:   Will Deacon <will.deacon@....com>
To:     bob smith <sfmc68@...izon.net>
Cc:     paulmck@...ux.vnet.ibm.com, rth@...ddle.net,
        ink@...assic.park.msu.ru, mattst88@...il.com,
        stern@...land.harvard.edu, j.alglave@....ac.uk,
        luc.maranget@...ia.fr, parri.andrea@...il.com,
        linux-alpha@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Question about DEC Alpha memory ordering

On Mon, Feb 13, 2017 at 01:53:27PM -0500, bob smith wrote:
> On 2/13/17 1:39 PM, Paul E. McKenney wrote:
> > can real DEC Alpha hardware end up with both instances of "r1"
> > having the value 1?
> 
> I thought this question reminded me of something, so I found this:
> > https://www.kernel.org/doc/Documentation/memory-barriers.txt
> 
> and I pasted in the content - David Howells is one of the authors and
> maybe that is why the question sort of reminded me.
> 
> Maybe someone has an update but this is what was said then.
> 
> 			 ============================
> 			 LINUX KERNEL MEMORY BARRIERS
> 			 ============================
> 
> By: David Howells <dhowells@...hat.com>
>     Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
      ^^^^^^^^^^^^^^^^

There's only one Paul E. McKenney.

Will