netdev - Re: [PATCH (resubmit)][BRIDGE] Properly dereference the br_should_route

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Message-ID: <20071130023117.GA25692@gondor.apana.org.au>
Date:	Fri, 30 Nov 2007 13:31:17 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Pavel Emelyanov <xemul@...nvz.org>,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Linux Netdev List <netdev@...r.kernel.org>,
	bridge@...ts.osdl.org, devel@...nvz.org, ego@...ibm.com
Subject: Re: [PATCH (resubmit)][BRIDGE] Properly dereference the br_should_route_hook

On Thu, Nov 29, 2007 at 05:25:01PM -0800, Paul E. McKenney wrote:
>
> You have in mind something like the following?
> 
> #define rcu_assign_pointer(p, v) \
> 	({ \
> 		if (!__builtin_constant_p(v) || \
> 		    ((v) != NULL)) \
> 			smp_wmb(); \
> 		(p) = (v); \
> 	})

Yes that's what I was thinking.

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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