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Merge branch 'tcp-fixes-in-timeout-and-retransmission-accounting' 

Yuchung Cheng says:

====================
tcp: fixes in timeout and retransmission accounting

This patch set has assorted fixes of minor accounting issues in
timeout, window probe, and retransmission stats.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-11-30 17:22:42 -08:00
parent c0f53771ba e1561fe2dd
commit 9b2156fab0
2 changed files with 6 additions and 6 deletions
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2
net/ipv4/tcp_output.c
View File

@ -2920,7 +2920,7 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs)
TCP_SKB_CB(skb)->sacked |= TCPCB_EVER_RETRANS;
trace_tcp_retransmit_skb(sk, skb);
} else if (err != -EBUSY) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPRETRANSFAIL);
NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPRETRANSFAIL, segs);
}
return err;
}

10
net/ipv4/tcp_timer.c
View File

@ -378,7 +378,7 @@ static void tcp_probe_timer(struct sock *sk)
return;
}
if (icsk->icsk_probes_out > max_probes) {
if (icsk->icsk_probes_out >= max_probes) {
abort: tcp_write_err(sk);
} else {
/* Only send another probe if we didn't close things up. */
@ -484,11 +484,12 @@ void tcp_retransmit_timer(struct sock *sk)
goto out_reset_timer;
}
__NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPTIMEOUTS);
if (tcp_write_timeout(sk))
goto out;
if (icsk->icsk_retransmits == 0) {
int mib_idx;
int mib_idx = 0;
if (icsk->icsk_ca_state == TCP_CA_Recovery) {
if (tcp_is_sack(tp))
@ -503,10 +504,9 @@ void tcp_retransmit_timer(struct sock *sk)
mib_idx = LINUX_MIB_TCPSACKFAILURES;
else
mib_idx = LINUX_MIB_TCPRENOFAILURES;
} else {
mib_idx = LINUX_MIB_TCPTIMEOUTS;
}
__NET_INC_STATS(sock_net(sk), mib_idx);
if (mib_idx)
__NET_INC_STATS(sock_net(sk), mib_idx);
}
tcp_enter_loss(sk);