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Date:	Sun, 07 Mar 2010 15:31:33 -0800 (PST)
From:	David Miller <>
Subject: Re: [PATCH 6/13] bridge: Add core IGMP snooping support

From: Herbert Xu <>
Date: Sat, 6 Mar 2010 15:07:39 +0800

> On Sat, Mar 06, 2010 at 02:56:55PM +0800, Herbert Xu wrote:
>> On Fri, Mar 05, 2010 at 09:06:56PM -0800, Paul E. McKenney wrote:
>> > Shouldn't the br_mdb_get() code path be using hlist_for_each_entry_rcu()
>> > in __br_mdb_ip_get(), then?  Or is something else going on here?
>> Indeed it should, I'll fix this up too.
> bridge: Use RCU list primitive in __br_mdb_ip_get
> As Paul McKenney correctly pointed out, __br_mdb_ip_get needs
> to use the RCU list walking primitive in order to work correctly
> on platforms where data-dependency ordering is not guaranteed.
> Reported-by: Paul E. McKenney <>
> Signed-off-by: Herbert Xu <>

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