diff options
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 8d2c91703158..584825ddd0a0 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -2088,6 +2088,10 @@ void tcp_clear_retrans(struct tcp_sock *tp) tp->undo_marker = 0; tp->undo_retrans = -1; tp->sacked_out = 0; + tp->rto_stamp = 0; + tp->total_rto = 0; + tp->total_rto_recoveries = 0; + tp->total_rto_time = 0; } static inline void tcp_init_undo(struct tcp_sock *tp) @@ -2825,6 +2829,14 @@ void tcp_enter_recovery(struct sock *sk, bool ece_ack) tcp_set_ca_state(sk, TCP_CA_Recovery); } +static void tcp_update_rto_time(struct tcp_sock *tp) +{ + if (tp->rto_stamp) { + tp->total_rto_time += tcp_time_stamp(tp) - tp->rto_stamp; + tp->rto_stamp = 0; + } +} + /* Process an ACK in CA_Loss state. Move to CA_Open if lost data are * recovered or spurious. Otherwise retransmits more on partial ACKs. */ @@ -3029,6 +3041,8 @@ static void tcp_fastretrans_alert(struct sock *sk, const u32 prior_snd_una, break; case TCP_CA_Loss: tcp_process_loss(sk, flag, num_dupack, rexmit); + if (icsk->icsk_ca_state != TCP_CA_Loss) + tcp_update_rto_time(tp); tcp_identify_packet_loss(sk, ack_flag); if (!(icsk->icsk_ca_state == TCP_CA_Open || (*ack_flag & FLAG_LOST_RETRANS))) @@ -6454,6 +6468,7 @@ static void tcp_rcv_synrecv_state_fastopen(struct sock *sk) tcp_try_undo_recovery(sk); /* Reset rtx states to prevent spurious retransmits_timed_out() */ + tcp_update_rto_time(tp); tp->retrans_stamp = 0; inet_csk(sk)->icsk_retransmits = 0; |