diff options
| author | Lawrence Brakmo <brakmo@fb.com> | 2016-05-11 10:02:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-11 14:43:19 -0400 |
| commit | 756ee1729b2feb3a45767da29e338f70f2086ba3 (patch) | |
| tree | 9329409e197d2912d3fba7e247a57239996c99e9 /net/ipv4/tcp_westwood.c | |
| parent | cf88585b1d5ce49515aabb381812976e2840a967 (diff) | |
tcp: replace cnt & rtt with struct in pkts_acked()
Replace 2 arguments (cnt and rtt) in the congestion control modules'
pkts_acked() function with a struct. This will allow adding more
information without having to modify existing congestion control
modules (tcp_nv in particular needs bytes in flight when packet
was sent).
As proposed by Neal Cardwell in his comments to the tcp_nv patch.
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_westwood.c')
| -rw-r--r-- | net/ipv4/tcp_westwood.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/tcp_westwood.c b/net/ipv4/tcp_westwood.c index c10732e39837..4b03a2e2a050 100644 --- a/net/ipv4/tcp_westwood.c +++ b/net/ipv4/tcp_westwood.c @@ -99,12 +99,13 @@ static void westwood_filter(struct westwood *w, u32 delta) * Called after processing group of packets. * but all westwood needs is the last sample of srtt. */ -static void tcp_westwood_pkts_acked(struct sock *sk, u32 cnt, s32 rtt) +static void tcp_westwood_pkts_acked(struct sock *sk, + const struct ack_sample *sample) { struct westwood *w = inet_csk_ca(sk); - if (rtt > 0) - w->rtt = usecs_to_jiffies(rtt); + if (sample->rtt_us > 0) + w->rtt = usecs_to_jiffies(sample->rtt_us); } /* |