aboutsummaryrefslogtreecommitdiffstats
path: root/net/ipv4/tcp_timer.c
diff options
context:
space:
mode:
authorEric Dumazet <edumazet@google.com>2017-12-12 18:22:52 -0800
committerDavid S. Miller <davem@davemloft.net>2017-12-13 16:04:04 -0500
commit4688eb7cf3ae2c2721d1dacff5c1384cba47d176 (patch)
tree4d28b821e9e14fc5d73a5d12272ce8b817d32ef4 /net/ipv4/tcp_timer.c
parenttcp: fix potential underestimation on rcv_rtt (diff)
downloadlinux-dev-4688eb7cf3ae2c2721d1dacff5c1384cba47d176.tar.xz
linux-dev-4688eb7cf3ae2c2721d1dacff5c1384cba47d176.zip
tcp: refresh tcp_mstamp from timers callbacks
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. Fixes: 385e20706fac ("tcp: use tp->tcp_mstamp in output path") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Soheil Hassas Yeganeh <soheil@google.com> Cc: Mike Maloney <maloney@google.com> Cc: Neal Cardwell <ncardwell@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Mike Maloney <maloney@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv4/tcp_timer.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 16df6dd44b98..968fda198376 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -264,6 +264,7 @@ void tcp_delack_timer_handler(struct sock *sk)
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);
}
@@ -632,6 +633,7 @@ static void tcp_keepalive_timer (struct timer_list *t)
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;