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

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Message-ID: <4413.1187201997@redhat.com>
Date:	Wed, 15 Aug 2007 19:19:57 +0100
From:	David Howells <dhowells@...hat.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	dhowells@...hat.com,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Satyam Sharma <satyam@...radead.org>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Christoph Lameter <clameter@....com>,
	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

Herbert Xu <herbert@...dor.apana.org.au> wrote:

> Let's turn this around.  Can you give a single example where
> the volatile semantics is needed in a legitimate way?

Accessing H/W registers?  But apart from that...

David
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