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Date: Fri, 12 Oct 2001 14:14:19 +1000
From: Rusty Russell <rusty@rustcorp.com.au>
To: "Paul E. McKenney" <mckenney@eng4.beaverton.ibm.com>
Cc: lse-tech@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: RFC: patch to allow lock-free traversal of lists with insertion
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On Wed, 10 Oct 2001 18:56:26 -0700 (PDT)
"Paul E. McKenney" <mckenney@eng4.beaverton.ibm.com> wrote:
 
> Here are two patches.  The wmbdd patch has been modified to use
> the lighter-weight SPARC instruction, as suggested by Dave Miller.
> The rmbdd patch defines an rmbdd() primitive that is defined to be
> rmb() on Alpha and a nop on other architectures.  I believe this
> rmbdd() primitive is what Richard is looking for.

Surely we don't need both?  If rmbdd exists, any code needing wmbdd
is terminally broken?

Rusty.
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