[TCP]: Add RFC3742 Limited Slow-Start, controlled by variable sysctl_tcp_max_ssthresh.

Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 0aa304711a96..d68effe98e8d 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -803,6 +803,14 @@ ctl_table ipv4_table[] = {
                 .proc_handler   = &proc_allowed_congestion_control,
                 .strategy       = &strategy_allowed_congestion_control,
         },
+        {
+                .ctl_name       = NET_TCP_MAX_SSTHRESH,
+                .procname       = "tcp_max_ssthresh",
+                .data           = &sysctl_tcp_max_ssthresh,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec,
+        },
         { .ctl_name = 0 }
 };