linux-kernel - Re: Uses for memory barriers

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Message-ID: <45103B8D.1040006@yahoo.com.au>
Date:	Wed, 20 Sep 2006 04:48:45 +1000
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	paulmck@...ibm.com
CC:	Alan Stern <stern@...land.harvard.edu>,
	David Howells <dhowells@...hat.com>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: Uses for memory barriers

Paul E. McKenney wrote:
> On Wed, Sep 20, 2006 at 03:51:29AM +1000, Nick Piggin wrote:

>>If store forwarding is able to occur outside cache coherency protocol,
>>then I don't see why not. I would also be interested to know if this
>>is the case on real systems.
> 
> 
> We are discussing multiple writes to the same variable, correct?
> 
> Just checking...

Correct.

-- 
SUSE Labs, Novell Inc.
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