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: v3.16.37~151
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=08a1ae3896142e4caf87b2a33faf1f84690e2807;p=thirdparty%2Fkernel%2Fstable.git

tcp: record TLP and ER timer stats in v6 stats

commit ce3cf4ec0305919fc69a972f6c2b2efd35d36abc upstream.

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: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2350f12eb3181..427d164aad46d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1804,7 +1804,9 @@ 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) {