netdev - Re: 2.6.39-rc6-mmotm0506 - another lockdep splat (networking this time)

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Message-ID: <1305064116.2437.34.camel@edumazet-laptop>
Date:	Tue, 10 May 2011 23:48:36 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	Valdis.Kletnieks@...edu, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: 2.6.39-rc6-mmotm0506 - another lockdep splat (networking this
 time)

Le lundi 09 mai 2011 à 20:58 -0700, David Miller a écrit :
> From: Eric Dumazet <eric.dumazet@...il.com>
> Date: Tue, 10 May 2011 05:47:51 +0200
> 
> > [PATCH net-next-2.6] net: fix two lockdep splats
> > 
> > Commit e67f88dd12f6 (net: dont hold rtnl mutex during netlink dump
> > callbacks) switched rtnl protection to RCU, but we forgot to adjust two
> > rcu_dereference() lockdep annotations :
> > 
> > inet_get_link_af_size() or inet_fill_link_af() might be called with
> > rcu_read_lock or rtnl held, so use rcu_dereference_rtnl()
> > instead of rtnl_dereference()
> > 
> > Reported-by: Valdis Kletnieks <Valdis.Kletnieks@...edu>
> > Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
> 
> Applied, thanks everyone.

David, I found you applied this patch for net-2.6, but it was
net-next-2.6 material only ...



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