aboutsummaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorYuchung Cheng <ycheng@google.com>2013-07-12 11:33:04 -0700
committerDavid S. Miller <davem@davemloft.net>2013-07-12 16:15:56 -0700
commit24ab6bec80861d0c55263047e8bf97e460a32e7b (patch)
tree251608b48a332a1cc7b0fa0c72fd2e4679dcaf01 /net
parente76385240ee5c812267319c9084e5a0d62bfbf90 (diff)
tcp: account all retransmit failures
Change snmp RETRANSFAILS stat to include timeout retransmit failures in addition to other loss recoveries. Signed-off-by: Yuchung Cheng <ycheng@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/tcp_output.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 3d609490f118..92fde8d1aa82 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2407,6 +2407,8 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
* see tcp_input.c tcp_sacktag_write_queue().
*/
TCP_SKB_CB(skb)->ack_seq = tp->snd_nxt;
+ } else {
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPRETRANSFAIL);
}
return err;
}
@@ -2528,10 +2530,9 @@ begin_fwd:
if (sacked & (TCPCB_SACKED_ACKED|TCPCB_SACKED_RETRANS))
continue;
- if (tcp_retransmit_skb(sk, skb)) {
- NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPRETRANSFAIL);
+ if (tcp_retransmit_skb(sk, skb))
return;
- }
+
NET_INC_STATS_BH(sock_net(sk), mib_idx);
if (tcp_in_cwnd_reduction(sk))

Privacy Policy