From: David S. Miller Date: Thu, 25 May 2006 23:11:14 +0000 (-0700) Subject: [TCP]: tcp_rcv_rtt_measure_ts() call in pure-ACK path is superfluous X-Git-Tag: v2.6.18-rc1~1111^2~88 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=15986e1aadbbf40a331cddd0470bb434d156431d;p=linux-2.6 [TCP]: tcp_rcv_rtt_measure_ts() call in pure-ACK path is superfluous We only want to take receive RTT mesaurements for data bearing frames, here in the header prediction fast path for a pure-sender, we know that we have a pure-ACK and thus the checks in tcp_rcv_rtt_mesaure_ts() will not pass. Signed-off-by: David S. Miller --- diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index c6d62f0a99..6d167889a4 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3931,8 +3931,6 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb, tp->rcv_nxt == tp->rcv_wup) tcp_store_ts_recent(tp); - tcp_rcv_rtt_measure_ts(sk, skb); - /* We know that such packets are checksummed * on entry. */