From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] tcp: fix FIONREAD/SIOCINQ
Date: Thu, 18 Oct 2012 15:36:39 -0400 (EDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 18 Oct 2012 21:14:12 +0200

> From: Eric Dumazet <edumazet@google.com>
> 
> tcp_ioctl() tries to take into account if tcp socket received a FIN
> to report correct number bytes in receive queue.
> 
> But its flaky because if the application ate the last skb,
> we return 1 instead of 0.
> 
> Correct way to detect that FIN was received is to test SOCK_DONE.
> 
> Reported-by: Elliot Hughes <enh@google.com>
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied and queued up for -stable.