netdev - [PATCH net-next 4/4] ipv4: clamp sysctl_tcp_probe

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Date:	Tue, 10 Mar 2015 17:16:26 +0800
From:	Fan Du <fan.du@...el.com>
To:	johnwheffner@...il.com
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	fengyuleidian0615@...il.com
Subject: [PATCH net-next 4/4] ipv4: clamp sysctl_tcp_probe_threshold

Signed-off-by: Fan Du <fan.du@...el.com>
---
 net/ipv4/tcp_output.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 89d3f84..dc0221b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1900,7 +1900,7 @@ static int tcp_mtu_probe(struct sock *sk)
 	 * probing process by not resetting search range to its orignal.
 	 */
 	if (probe_size > tcp_mtu_to_mss(sk, icsk->icsk_mtup.search_high) ||
-		interval < net->ipv4.sysctl_tcp_probe_threshold) {
+		interval < max(1, net->ipv4.sysctl_tcp_probe_threshold)) {
 		/* Check whether enough time has elaplased for
 		 * another round of probing.
 		 */
-- 
1.7.1

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