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List:       linux-alpha
Subject:    Re: Do any Alpha systems include InfiniBand?
From:       "Paul E. McKenney" <paulmck () linux ! vnet ! ibm ! com>
Date:       2017-10-23 18:01:36
Message-ID: 20171023180136.GR3659 () linux ! vnet ! ibm ! com
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On Mon, Oct 23, 2017 at 06:16:25PM +0100, Will Deacon wrote:
> On Mon, Oct 23, 2017 at 10:13:12AM -0700, Paul E. McKenney wrote:
> > On Mon, Oct 23, 2017 at 09:59:21PM +1300, Michael Cree wrote:
> > > On Fri, Oct 20, 2017 at 12:48:32PM -0700, Paul E. McKenney wrote:
> > > > Do any of the DEC Alpha systems that run recent kernels have InfiniBand?
> > > > Given my understanding of the history, I believe the answer to be "no".
> > > 
> > > I am not aware of any Alpha systems with InfiniBand.
> > 
> > Very good, then we need not worry about any Alpha-related consequences
> > of removing smp_read_barrier_depends() invocations from the InfiniBand
> > driver.  ;-)
> 
> But maybe make that driver depend on !CONFIG_ALPHA, so as to avoid planting
> any subtle ordering bugs?

Good point, that does sound like a very sensible precaution!

							Thanx, Paul

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