diff options
Diffstat (limited to 'net/ipv4/tcp_htcp.c')
| -rw-r--r-- | net/ipv4/tcp_htcp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c index fa61663ace3b..b66556c0a5bd 100644 --- a/net/ipv4/tcp_htcp.c +++ b/net/ipv4/tcp_htcp.c @@ -76,12 +76,11 @@ static u32 htcp_cwnd_undo(struct sock *sk) return max(tp->snd_cwnd, (tp->snd_ssthresh << 7) / ca->beta); } -static inline void measure_rtt(struct sock *sk) +static inline void measure_rtt(struct sock *sk, u32 srtt) { const struct inet_connection_sock *icsk = inet_csk(sk); const struct tcp_sock *tp = tcp_sk(sk); struct htcp *ca = inet_csk_ca(sk); - u32 srtt = tp->srtt >> 3; /* keep track of minimum RTT seen so far, minRTT is zero at first */ if (ca->minRTT > srtt || !ca->minRTT) @@ -108,6 +107,9 @@ static void measure_achieved_throughput(struct sock *sk, u32 pkts_acked, s32 rtt if (icsk->icsk_ca_state == TCP_CA_Open) ca->pkts_acked = pkts_acked; + if (rtt > 0) + measure_rtt(sk, usecs_to_jiffies(rtt)); + if (!use_bandwidth_switch) return; @@ -237,8 +239,6 @@ static void htcp_cong_avoid(struct sock *sk, u32 ack, if (tp->snd_cwnd <= tp->snd_ssthresh) tcp_slow_start(tp); else { - measure_rtt(sk); - /* In dangerous area, increase slowly. * In theory this is tp->snd_cwnd += alpha / tp->snd_cwnd */ |