X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv4%2Ftcp_veno.c;h=d08b2e855c229334fcec88bb765cb26dbb6e34c7;hb=c8c213f20ce97c66fe2ff86f33814d1ca0f9d7ea;hp=8fb2aee0b1a408171f43fd9e7b4d4987c6cc5f08;hpb=b981d8b3f5e008ff10d993be633ad00564fc22cd;p=linux-2.6-omap-h63xx.git

diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index 8fb2aee0b1a..d08b2e855c2 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -114,14 +114,15 @@ static void tcp_veno_cwnd_event(struct sock *sk, enum tcp_ca_event event)
 		tcp_veno_init(sk);
 }
 
-static void tcp_veno_cong_avoid(struct sock *sk, u32 ack,
-				u32 in_flight, int flag)
+static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct veno *veno = inet_csk_ca(sk);
 
-	if (!veno->doing_veno_now)
-		return tcp_reno_cong_avoid(sk, ack, in_flight, flag);
+	if (!veno->doing_veno_now) {
+		tcp_reno_cong_avoid(sk, ack, in_flight);
+		return;
+	}
 
 	/* limited by applications */
 	if (!tcp_is_cwnd_limited(sk, in_flight))
@@ -132,9 +133,10 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack,
 		/* We don't have enough rtt samples to do the Veno
 		 * calculation, so we'll behave like Reno.
 		 */
-		tcp_reno_cong_avoid(sk, ack, in_flight, flag);
+		tcp_reno_cong_avoid(sk, ack, in_flight);
 	} else {
-		u32 rtt, target_cwnd;
+		u64 target_cwnd;
+		u32 rtt;
 
 		/* We have enough rtt samples, so, using the Veno
 		 * algorithm, we determine the state of the network.
@@ -142,8 +144,9 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack,
 
 		rtt = veno->minrtt;
 
-		target_cwnd = ((tp->snd_cwnd * veno->basertt)
-			       << V_PARAM_SHIFT) / rtt;
+		target_cwnd = (tp->snd_cwnd * veno->basertt);
+		target_cwnd <<= V_PARAM_SHIFT;
+		do_div(target_cwnd, rtt);
 
 		veno->diff = (tp->snd_cwnd << V_PARAM_SHIFT) - target_cwnd;