From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: [PATCH net-next 12/15] tcp_westwood: use tcp_jiffies32 instead of tcp_time_stamp Date: Tue, 16 May 2017 14:00:11 -0700 Message-ID: <20170516210014.31176-13-edumazet@google.com> References: <20170516210014.31176-1-edumazet@google.com> Cc: netdev , Eric Dumazet , Eric Dumazet To: "David S . Miller" , Neal Cardwell , Yuchung Cheng , Soheil Hassas Yeganeh , Wei Wang Return-path: Received: from mail-pg0-f43.google.com ([74.125.83.43]:35663 "EHLO mail-pg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752969AbdEPV2e (ORCPT ); Tue, 16 May 2017 17:28:34 -0400 Received: by mail-pg0-f43.google.com with SMTP id q125so62895708pgq.2 for ; Tue, 16 May 2017 14:28:28 -0700 (PDT) In-Reply-To: <20170516210014.31176-1-edumazet@google.com> Sender: netdev-owner@vger.kernel.org List-ID: This CC does not need 1 ms tcp_time_stamp and can use the jiffy based 'timestamp'. Signed-off-by: Eric Dumazet --- net/ipv4/tcp_westwood.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c index 9775453b8d174c848dc09df83d1fa185422cd8cc..bec9cafbe3f92938e5d79d743d629b2f33464418 100644 --- a/net/ipv4/tcp_westwood.c +++ b/net/ipv4/tcp_westwood.c @@ -68,7 +68,7 @@ static void tcp_westwood_init(struct sock *sk) w->cumul_ack = 0; w->reset_rtt_min = 1; w->rtt_min = w->rtt = TCP_WESTWOOD_INIT_RTT; - w->rtt_win_sx = tcp_time_stamp; + w->rtt_win_sx = tcp_jiffies32; w->snd_una = tcp_sk(sk)->snd_una; w->first_ack = 1; } @@ -116,7 +116,7 @@ static void tcp_westwood_pkts_acked(struct sock *sk, static void westwood_update_window(struct sock *sk) { struct westwood *w = inet_csk_ca(sk); - s32 delta = tcp_time_stamp - w->rtt_win_sx; + s32 delta = tcp_jiffies32 - w->rtt_win_sx; /* Initialize w->snd_una with the first acked sequence number in order * to fix mismatch between tp->snd_una and w->snd_una for the first @@ -140,7 +140,7 @@ static void westwood_update_window(struct sock *sk) westwood_filter(w, delta); w->bk = 0; - w->rtt_win_sx = tcp_time_stamp; + w->rtt_win_sx = tcp_jiffies32; } } -- 2.13.0.303.g4ebf302169-goog