netdev - Re: [PATCH] net: fix a lockdep splat

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Message-Id: <20100922.212332.45886457.davem@davemloft.net>
Date:	Wed, 22 Sep 2010 21:23:32 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	jarkao2@...il.com, penguin-kernel@...ove.SAKURA.ne.jp,
	linux-fsdevel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] net: fix a lockdep splat

From: David Miller <davem@...emloft.net>
Date: Wed, 22 Sep 2010 20:53:24 -0700 (PDT)

> From: Eric Dumazet <eric.dumazet@...il.com>
> Date: Thu, 23 Sep 2010 00:43:39 +0200
> 
>> (A) (this is used in net/sunrpc/xprtsock.c)
>> read_lock(&sk->sk_callback_lock) (without blocking BH)
>> <BH>
>> spin_lock(&sk->sk_slock.slock);
>> ...
>> read_lock(&sk->sk_callback_lock);
>> ...
> 
> What's the exact path that leads to this?  I looked quickly and couldn't
> find which sunrpc callback override does it.

Sorry, I'm being unusually dense at the moment, ignore this question :-)
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