netdev - Re: [patch] ipvs: force read of atomic

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Date:	Wed, 8 Aug 2007 12:28:35 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	David Miller <davem@...emloft.net>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, schwidefsky@...ibm.com,
	wensong@...ux-vs.org, horms@...ge.net.au
Subject: Re: [patch] ipvs: force read of atomic_t in while loop

On Wed, Aug 08, 2007 at 03:21:31AM -0700, David Miller wrote:
> From: Heiko Carstens <heiko.carstens@...ibm.com>
> Date: Wed, 8 Aug 2007 11:33:00 +0200
> 
> > Just saw this while grepping for atomic_reads in a while loops.
> > Maybe we should re-add the volatile to atomic_t. Not sure.
> 
> I think whatever the choice, it should be done consistently
> on every architecture.
> 
> It's just asking for trouble if your arch does it differently from
> every other.

Well..currently it's i386/x86_64 and s390 which have no volatile
in atomic_t. And yes, of course I agree it should be consistent
across all architectures. But it isn't.
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