netdev - Re: TCP_DEFER_ACCEPT is missing counter update

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Message-Id: <20091013.003506.67125018.davem@davemloft.net>
Date:	Tue, 13 Oct 2009 00:35:06 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	w@....eu, netdev@...r.kernel.org
Subject: Re: TCP_DEFER_ACCEPT is missing counter update

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 13 Oct 2009 09:23:59 +0200

> I dont understand why you want to decrement rskq_defer_accept here.
> We receive a pure ACK (wihout DATA).
> We should receive exactly one such ACK.
> (This is the third packet of the three way TCP handshake)
> 
> How this can solve the problem you mention ?
> (ie, not sending an RST when we timeout the SYN_RECV session)

I'll hold off on this patch until Eric's comments are
addressed, thanks.
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