From: Yuchung Cheng <ycheng@google.com>
Date: Mon, 6 Jun 2016 22:07:18 +0000 (-0700)
Subject: tcp: record TLP and ER timer stats in v6 stats
X-Git-Tag: firefly_0821_release~176^2~4^2~40^2~67
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f946ceab11c4bede9b3d6c0d56f0964d65bfff65;p=firefly-linux-kernel-4.4.55.git

tcp: record TLP and ER timer stats in v6 stats

[ Upstream commit ce3cf4ec0305919fc69a972f6c2b2efd35d36abc ]

The v6 tcp stats scan do not provide TLP and ER timer information
correctly like the v4 version . This patch fixes that.

Fixes: 6ba8a3b19e76 ("tcp: Tail loss probe (TLP)")
Fixes: eed530b6c676 ("tcp: early retransmit")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b8d405623f4f..1a1cd3938fd0 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1706,7 +1706,9 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 	destp = ntohs(inet->inet_dport);
 	srcp  = ntohs(inet->inet_sport);
 
-	if (icsk->icsk_pending == ICSK_TIME_RETRANS) {
+	if (icsk->icsk_pending == ICSK_TIME_RETRANS ||
+	    icsk->icsk_pending == ICSK_TIME_EARLY_RETRANS ||
+	    icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) {
 		timer_active	= 1;
 		timer_expires	= icsk->icsk_timeout;
 	} else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {