This is a note to let you know that I've just added the patch titled
tcp: set timestamps for restored skb-s
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tcp-set-timestamps-for-restored-skb-s.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 00009381077ffbc9229f3fec5c462c7d6cc8ca73 Mon Sep 17 00:00:00 2001
From: Andrey Vagin <avagin@xxxxxxxxxx>
Date: Fri, 16 Aug 2013 19:04:36 +0400
Subject: tcp: set timestamps for restored skb-s
From: Andrey Vagin <avagin@xxxxxxxxxx>
[ Upstream commit 7ed5c5ae96d23da22de95e1c7a239537acd378b1 ]
When the repair mode is turned off, the write queue seqs are
updated so that the whole queue is considered to be 'already sent.
The "when" field must be set for such skb. It's used in tcp_rearm_rto
for example. If the "when" field isn't set, the retransmit timeout can
be calculated incorrectly and a tcp connected can stop for two minutes
(TCP_RTO_MAX).
Acked-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Alexey Kuznetsov <kuznet@xxxxxxxxxxxxx>
Cc: James Morris <jmorris@xxxxxxxxx>
Cc: Hideaki YOSHIFUJI <yoshfuji@xxxxxxxxxxxxxx>
Cc: Patrick McHardy <kaber@xxxxxxxxx>
Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/ipv4/tcp.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1118,6 +1118,13 @@ new_segment:
goto wait_for_memory;
/*
+ * All packets are restored as if they have
+ * already been sent.
+ */
+ if (tp->repair)
+ TCP_SKB_CB(skb)->when = tcp_time_stamp;
+
+ /*
* Check whether we can use HW checksum.
*/
if (sk->sk_route_caps & NETIF_F_ALL_CSUM)
Patches currently in stable-queue which might be from avagin@xxxxxxxxxx are
queue-3.10/tcp-don-t-apply-tsoffset-if-rcv_tsecr-is-zero.patch
queue-3.10/tcp-set-timestamps-for-restored-skb-s.patch
queue-3.10/tcp-initialize-rcv_tstamp-for-restored-sockets.patch
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