Patch "tcp: refresh tcp_mstamp from timers callbacks" has been added to the 4.14-stable tree

This is a note to let you know that I've just added the patch titled

tcp: refresh tcp_mstamp from timers callbacks

to the 4.14-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-refresh-tcp_mstamp-from-timers-callbacks.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Eric Dumazet <[email protected]>
Date: Tue, 12 Dec 2017 18:22:52 -0800
Subject: tcp: refresh tcp_mstamp from timers callbacks

From: Eric Dumazet <[email protected]>

[ Upstream commit 4688eb7cf3ae2c2721d1dacff5c1384cba47d176 ]

Only the retransmit timer currently refreshes tcp_mstamp

We should do the same for delayed acks and keepalives.

Even if RFC 7323 does not request it, this is consistent to what linux did in the past, when TS values were based on jiffies.

---
 net/ipv4/tcp_timer.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -264,6 +264,7 @@ void tcp_delack_timer_handler(struct soc
 			icsk->icsk_ack.pingpong = 0;
 			icsk->icsk_ack.ato      = TCP_ATO_MIN;
 		}
+		tcp_mstamp_refresh(tcp_sk(sk));
 		tcp_send_ack(sk);
 		__NET_INC_STATS(sock_net(sk), LINUX_MIB_DELAYEDACKS);
 	}

@@ -627,6 +628,7 @@ static void tcp_keepalive_timer (unsigne
 		goto out;
 	}
 
+	tcp_mstamp_refresh(tp);
 	if (sk->sk_state == TCP_FIN_WAIT2 && sock_flag(sk, SOCK_DEAD)) {
 		if (tp->linger2 >= 0) {
 			const int tmo = tcp_fin_time(sk) - TCP_TIMEWAIT_LEN;

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/tcp-refresh-tcp_mstamp-from-timers-callbacks.patch queue-4.14/net-fix-double-free-and-memory-corruption-in-get_net_ns_by_id.patch queue-4.14/sock-free-skb-in-skb_complete_tx_timestamp-on-error.patch queue-4.14/tcp-invalidate-rate-samples-during-sack-reneging.patch queue-4.14/tcp-md5sig-use-skb-s-saddr-when-replying-to-an-incoming-segment.patch queue-4.14/net-ipv4-fix-for-a-race-condition-in-raw_sendmsg.patch queue-4.14/ipv4-igmp-guard-against-silly-mtu-values.patch queue-4.14/tcp-fix-potential-underestimation-on-rcv_rtt.patch queue-4.14/ipv6-mcast-better-catch-silly-mtu-values.patch