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[net-next,4/4] ipv4: clamp sysctl_tcp_probe_threshold

Message ID 1425978986-8512-5-git-send-email-fan.du@intel.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Fan Du March 10, 2015, 9:16 a.m. UTC 
Signed-off-by: Fan Du <fan.du@intel.com>
---
 net/ipv4/tcp_output.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff mbox

Patch

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.
 		 */