diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp_input.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 889c89362bf..b39f0d86e44 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2651,6 +2651,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, s32 *seq_rtt_p, u32 cnt = 0; u32 reord = tp->packets_out; s32 seq_rtt = -1; + s32 ca_seq_rtt = -1; ktime_t last_ackt = net_invalid_timestamp(); while ((skb = tcp_write_queue_head(sk)) && skb != tcp_send_head(sk)) { @@ -2659,6 +2660,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, s32 *seq_rtt_p, u32 packets_acked; u8 sacked = scb->sacked; + /* Determine how many packets and what bytes were acked, tso and else */ if (after(scb->end_seq, tp->snd_una)) { if (tcp_skb_pcount(skb) == 1 || !after(tp->snd_una, scb->seq)) @@ -2686,15 +2688,16 @@ static int tcp_clean_rtx_queue(struct sock *sk, s32 *seq_rtt_p, if (sacked & TCPCB_SACKED_RETRANS) tp->retrans_out -= packets_acked; flag |= FLAG_RETRANS_DATA_ACKED; + ca_seq_rtt = -1; seq_rtt = -1; if ((flag & FLAG_DATA_ACKED) || (packets_acked > 1)) flag |= FLAG_NONHEAD_RETRANS_ACKED; } else { + ca_seq_rtt = now - scb->when; + last_ackt = skb->tstamp; if (seq_rtt < 0) { - seq_rtt = now - scb->when; - if (fully_acked) - last_ackt = skb->tstamp; + seq_rtt = ca_seq_rtt; } if (!(sacked & TCPCB_SACKED_ACKED)) reord = min(cnt, reord); @@ -2709,10 +2712,10 @@ static int tcp_clean_rtx_queue(struct sock *sk, s32 *seq_rtt_p, !before(end_seq, tp->snd_up)) tp->urg_mode = 0; } else { + ca_seq_rtt = now - scb->when; + last_ackt = skb->tstamp; if (seq_rtt < 0) { - seq_rtt = now - scb->when; - if (fully_acked) - last_ackt = skb->tstamp; + seq_rtt = ca_seq_rtt; } reord = min(cnt, reord); } @@ -2772,8 +2775,8 @@ static int tcp_clean_rtx_queue(struct sock *sk, s32 *seq_rtt_p, net_invalid_timestamp())) rtt_us = ktime_us_delta(ktime_get_real(), last_ackt); - else if (seq_rtt > 0) - rtt_us = jiffies_to_usecs(seq_rtt); + else if (ca_seq_rtt > 0) + rtt_us = jiffies_to_usecs(ca_seq_rtt); } ca_ops->pkts_acked(sk, pkts_acked, rtt_us); |