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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] net: fix a lockdep splat
Date: Wed, 22 Sep 2010 20:53:24 -0700 (PDT)
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From: Eric Dumazet <eric.dumazet@gmail.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.

Thanks.