From: David Howells <dhowells@redhat•com>
To: Chris Snook <csnook@redhat•com>
Cc: dhowells@redhat•com, linux-kernel@vger•kernel.org,
linux-arch@vger•kernel.org, torvalds@linux-foundation•org,
netdev@vger•kernel.org, akpm@linux-foundation•org, ak@suse•de,
heiko.carstens@de•ibm.com, davem@davemloft•net,
schwidefsky@de•ibm.com, wensong@linux-vs•org, horms@verge•net.au,
wjiang@resilience•com, cfriesen@nortel•com, zlynx@acm•org,
rpjday@mindspring•com, jesper.juhl@gmail•com
Subject: Re: [PATCH 6/24] make atomic_read() behave consistently on frv
Date: Sat, 11 Aug 2007 09:47:51 +0100 [thread overview]
Message-ID: <7680.1186822071@redhat.com> (raw)
In-Reply-To: <46BCC26B.6080600@redhat.com>
Chris Snook <csnook@redhat•com> wrote:
> cpu_relax() contains a barrier, so it should do the right thing. For non-smp
> architectures, I'm concerned about interacting with interrupt handlers. Some
> drivers do use atomic_* operations.
I'm not sure that actually answers my question. Why not smp_rmb()?
David
next prev parent reply other threads:[~2007-08-11 8:47 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-09 13:41 [PATCH 6/24] make atomic_read() behave consistently on frv Chris Snook
2007-08-09 16:54 ` Chris Snook
2007-08-10 9:23 ` David Howells
2007-08-10 19:54 ` Chris Snook
2007-08-11 0:54 ` Herbert Xu
2007-08-11 4:29 ` Paul E. McKenney
2007-08-13 5:15 ` Herbert Xu
2007-08-13 6:03 ` Paul E. McKenney
2007-08-14 5:34 ` Nick Piggin
2007-08-14 7:26 ` Herbert Xu
2007-08-14 17:01 ` Paul E. McKenney
2007-08-14 22:01 ` Arnd Bergmann
2007-08-14 22:43 ` Paul E. McKenney
2007-08-15 13:29 ` Arnd Bergmann
2007-08-15 15:06 ` Michael Buesch
2007-08-15 13:30 ` Nick Piggin
2007-08-15 20:15 ` Paul E. McKenney
2007-08-16 1:09 ` Nick Piggin
2007-08-16 2:27 ` Paul E. McKenney
2007-08-11 8:47 ` David Howells [this message]
2007-08-13 6:44 ` Chris Snook
2007-08-14 5:42 ` Nick Piggin
2007-08-15 18:51 ` Segher Boessenkool
2007-08-15 19:18 ` Paul E. McKenney
2007-08-15 19:46 ` Segher Boessenkool
2007-08-15 19:59 ` Paul E. McKenney
2007-08-15 20:13 ` Segher Boessenkool
2007-08-15 20:38 ` Paul E. McKenney
2007-08-15 21:15 ` Segher Boessenkool
2007-08-16 1:20 ` Nick Piggin
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