linux-kernel - Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

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Message-ID: <Pine.LNX.4.64.0708151917210.11736@schroedinger.engr.sgi.com>
Date:	Wed, 15 Aug 2007 19:18:30 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
cc:	Satyam Sharma <satyam@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Chris Snook <csnook@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-arch@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	netdev@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>,
	ak@...e.de, heiko.carstens@...ibm.com, davem@...emloft.net,
	schwidefsky@...ibm.com, wensong@...ux-vs.org, horms@...ge.net.au,
	wjiang@...ilience.com, cfriesen@...tel.com, zlynx@....org,
	rpjday@...dspring.com, jesper.juhl@...il.com,
	segher@...nel.crashing.org
Subject: Re: [PATCH 0/24] make atomic_read() behave consistently across all
 architectures

On Thu, 16 Aug 2007, Herbert Xu wrote:

> > Do we have a consensus here? (hoping against hope, probably :-)
> 
> I can certainly agree with this.

I agree too.

> But I have to say that I still don't know of a single place
> where one would actually use the volatile variant.

I suspect that what you say is true after we have looked at all callers.


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