netdev - [PATCH net 1/1] net: tcp: Increase TCPABORTONLINGER when send RST by linger2 in keepalive timer

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Date:   Sun,  9 Apr 2017 20:44:41 +0800
From:   gfree.wind@...mail.com
To:     davem@...emloft.net, kuznet@....inr.ac.ru, jmorris@...ei.org,
        kaber@...sh.net, ncardwell@...gle.com, netdev@...r.kernel.org
Cc:     Gao Feng <fgao@...ai8.com>
Subject: [PATCH net 1/1] net: tcp: Increase TCPABORTONLINGER when send RST by linger2 in keepalive timer

From: Gao Feng <fgao@...ai8.com>

It should increase TCPABORTONLINGER counter when send RST caused by
linger2 in keepalive timer.

Signed-off-by: Gao Feng <fgao@...ai8.com>
---
 net/ipv4/tcp_timer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index b2ab411..5c01f21 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -650,6 +650,8 @@ static void tcp_keepalive_timer (unsigned long data)
 				tcp_time_wait(sk, TCP_FIN_WAIT2, tmo);
 				goto out;
 			}
+		} else {
+			NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTONLINGER);
 		}
 		tcp_send_active_reset(sk, GFP_ATOMIC);
 		goto death;
-- 
1.9.1