diff options
Diffstat (limited to 'net/ipv4/tcp_illinois.c')
| -rw-r--r-- | net/ipv4/tcp_illinois.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c index cc5de6f69d46..64f1cbaf96e8 100644 --- a/net/ipv4/tcp_illinois.c +++ b/net/ipv4/tcp_illinois.c @@ -83,18 +83,16 @@ static void tcp_illinois_init(struct sock *sk) } /* Measure RTT for each ack. */ -static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, ktime_t last) +static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, s32 rtt) { struct illinois *ca = inet_csk_ca(sk); - u32 rtt; ca->acked = pkts_acked; - if (ktime_equal(last, net_invalid_timestamp())) + /* dup ack, no rtt sample */ + if (rtt < 0) return; - rtt = ktime_to_us(net_timedelta(last)); - /* ignore bogus values, this prevents wraparound in alpha math */ if (rtt > RTT_MAX) rtt = RTT_MAX; |