tcp: add LINUX_MIB_TCPRETRANSFAIL counter
It might be useful to get a counter of failed tcp_retransmit_skb()
calls.
Reported-by: Satoru Moriya <satoru.moriya@hds.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/snmp.h b/include/linux/snmp.h
index c1241c42..8ee8af4e6 100644
--- a/include/linux/snmp.h
+++ b/include/linux/snmp.h
@@ -232,6 +232,7 @@
LINUX_MIB_TCPTIMEWAITOVERFLOW, /* TCPTimeWaitOverflow */
LINUX_MIB_TCPREQQFULLDOCOOKIES, /* TCPReqQFullDoCookies */
LINUX_MIB_TCPREQQFULLDROP, /* TCPReqQFullDrop */
+ LINUX_MIB_TCPRETRANSFAIL, /* TCPRetransFail */
__LINUX_MIB_MAX
};