From 30cfd0baf0a0c4329fff1ef4b622919297969ec8 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 25 Jul 2007 23:49:34 -0700 Subject: [TCP]: congestion control API pass RTT in microseconds This patch changes the API for the callback that is done after an ACK is received. It solves a couple of issues: * Some congestion controls want higher resolution value of RTT (controlled by TCP_CONG_RTT_SAMPLE flag). These don't really want a ktime, but all compute a RTT in microseconds. * Other congestion control could use RTT at jiffies resolution. To keep API consistent the units should be the same for both cases, just the resolution should change. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/ipv4/tcp_bic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv4/tcp_bic.c') diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c index 519de091a94d..4586211e3757 100644 --- a/net/ipv4/tcp_bic.c +++ b/net/ipv4/tcp_bic.c @@ -206,7 +206,7 @@ static void bictcp_state(struct sock *sk, u8 new_state) /* Track delayed acknowledgment ratio using sliding window * ratio = (15*ratio + sample) / 16 */ -static void bictcp_acked(struct sock *sk, u32 cnt, ktime_t last) +static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt) { const struct inet_connection_sock *icsk = inet_csk(sk); -- cgit v1.2.3-59-g8ed1b