tcp: bic, cubic: use tcp_jiffies32 instead of tcp_time_stamp

Use tcp_jiffies32 instead of tcp_time_stamp, since
tcp_time_stamp will soon be only used for TCP TS option.

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_bic.c b/net/ipv4/tcp_bic.c
index 36087bc..609965f 100644
--- a/net/ipv4/tcp_bic.c
+++ b/net/ipv4/tcp_bic.c
@@ -84,14 +84,14 @@ static void bictcp_init(struct sock *sk)
 static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
 {
 	if (ca->last_cwnd == cwnd &&
-	    (s32)(tcp_time_stamp - ca->last_time) <= HZ / 32)
+	    (s32)(tcp_jiffies32 - ca->last_time) <= HZ / 32)
 		return;
 
 	ca->last_cwnd = cwnd;
-	ca->last_time = tcp_time_stamp;
+	ca->last_time = tcp_jiffies32;
 
 	if (ca->epoch_start == 0) /* record the beginning of an epoch */
-		ca->epoch_start = tcp_time_stamp;
+		ca->epoch_start = tcp_jiffies32;
 
 	/* start off normal */
 	if (cwnd <= low_window) {