[CRIU] [PATCH] tcp: initialize rcv_tstamp for restored sockets
Andrey Vagin
avagin at openvz.org
Tue Aug 20 02:50:43 EDT 2013
From: Andrew Vagin <avagin at openvz.org>
u32 rcv_tstamp; /* timestamp of last received ACK */
Its value used in tcp_retransmit_timer and if the last ack was received
more then TCP_RTO_MAX ago, the socket will be closed.
This patch initializes rcv_tstamp to a timestamp, when a socket was
restored.
Cc: Pavel Emelyanov <xemul at parallels.com>
Reported-by: Cyrill Gorcunov <gorcunov at openvz.org>
Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
net/ipv4/tcp_output.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 92fde8d..e297299 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2814,6 +2814,8 @@ void tcp_connect_init(struct sock *sk)
if (likely(!tp->repair))
tp->rcv_nxt = 0;
+ else
+ tp->rcv_tstamp = tcp_time_stamp;
tp->rcv_wup = tp->rcv_nxt;
tp->copied_seq = tp->rcv_nxt;
--
1.8.3.1
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