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Date: Wed, 23 Sep 2020 17:31:26 -0700 (PDT) From: David Miller <davem@...emloft.net> To: matthieu.baerts@...sares.net Cc: mathew.j.martineau@...ux.intel.com, kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org, mptcp@...ts.01.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH net-next v3] mptcp: Wake up MPTCP worker when DATA_FIN found on a TCP FIN packet From: Matthieu Baerts <matthieu.baerts@...sares.net> Date: Mon, 21 Sep 2020 16:57:58 +0200 > From: Mat Martineau <mathew.j.martineau@...ux.intel.com> > > When receiving a DATA_FIN MPTCP option on a TCP FIN packet, the DATA_FIN > information would be stored but the MPTCP worker did not get > scheduled. In turn, the MPTCP socket state would remain in > TCP_ESTABLISHED and no blocked operations would be awakened. > > TCP FIN packets are seen by the MPTCP socket when moving skbs out of the > subflow receive queues, so schedule the MPTCP worker when a skb with > DATA_FIN but no data payload is moved from a subflow queue. Other cases > (DATA_FIN on a bare TCP ACK or on a packet with data payload) are > already handled. > > Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/84 > Fixes: 43b54c6ee382 ("mptcp: Use full MPTCP-level disconnect state machine") > Acked-by: Paolo Abeni <pabeni@...hat.com> > Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com> > Signed-off-by: Matthieu Baerts <matthieu.baerts@...sares.net> Applied to 'net', thanks.
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