diff options
| -rw-r--r-- | include/linux/snmp.h | 1 | ||||
| -rw-r--r-- | net/ipv4/proc.c | 1 | ||||
| -rw-r--r-- | net/ipv4/tcp_output.c | 4 |
3 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/snmp.h b/include/linux/snmp.h index c1241c42..8ee8af4 100644 --- a/include/linux/snmp.h +++ b/include/linux/snmp.h @@ -232,6 +232,7 @@ enum LINUX_MIB_TCPTIMEWAITOVERFLOW, /* TCPTimeWaitOverflow */ LINUX_MIB_TCPREQQFULLDOCOOKIES, /* TCPReqQFullDoCookies */ LINUX_MIB_TCPREQQFULLDROP, /* TCPReqQFullDrop */ + LINUX_MIB_TCPRETRANSFAIL, /* TCPRetransFail */ __LINUX_MIB_MAX }; diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index 6afc807..02d6107 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -256,6 +256,7 @@ static const struct snmp_mib snmp4_net_list[] = { SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW), SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES), SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP), + SNMP_MIB_ITEM("TCPRetransFail", LINUX_MIB_TCPRETRANSFAIL), SNMP_MIB_SENTINEL }; diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 8c8de27..561550a 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2308,8 +2308,10 @@ begin_fwd: if (sacked & (TCPCB_SACKED_ACKED|TCPCB_SACKED_RETRANS)) continue; - if (tcp_retransmit_skb(sk, skb)) + if (tcp_retransmit_skb(sk, skb)) { + NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPRETRANSFAIL); return; + } NET_INC_STATS_BH(sock_net(sk), mib_idx); if (inet_csk(sk)->icsk_ca_state == TCP_CA_Recovery) |
