tcp_westwood: use tcp_jiffies32 instead of tcp_time_stamp

This CC does not need 1 ms tcp_time_stamp and can use
the jiffy based 'timestamp'.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c
index 9775453..bec9caf 100644 (file)
--- 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;
        }
 }