netdev - Re: [PATCH net] tcp: properly account Fast Open SYN-ACK retrans

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Message-Id: <20160922.033331.1227668027735387540.davem@davemloft.net>
Date:   Thu, 22 Sep 2016 03:33:31 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     ycheng@...gle.com
Cc:     netdev@...r.kernel.org, edumazet@...gle.com, ncardwell@...gle.com,
        soheil@...gle.com
Subject: Re: [PATCH net] tcp: properly account Fast Open SYN-ACK retrans

From: Yuchung Cheng <ycheng@...gle.com>
Date: Wed, 21 Sep 2016 16:16:15 -0700

> Since the TFO socket is accepted right off SYN-data, the socket
> owner can call getsockopt(TCP_INFO) to collect ongoing SYN-ACK
> retransmission or timeout stats (i.e., tcpi_total_retrans,
> tcpi_retransmits). Currently those stats are only updated
> upon handshake completes. This patch fixes it.
> 
> Signed-off-by: Yuchung Cheng <ycheng@...gle.com>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Neal Cardwell <ncardwell@...gle.com>
> Signed-off-by: Soheil Hassas Yeganeh <soheil@...gle.com>

Applied.