tcp: Namespace-ify sysctl_tcp_tso_win_divisor

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 27f376b90913..284ff16148df 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2494,6 +2494,11 @@ static int __net_init tcp_sk_init(struct net *net)
         net->ipv4.sysctl_tcp_adv_win_scale = 1;
         net->ipv4.sysctl_tcp_frto = 2;
         net->ipv4.sysctl_tcp_moderate_rcvbuf = 1;
+        /* This limits the percentage of the congestion window which we
+         * will allow a single TSO frame to consume.  Building TSO frames
+         * which are too large can cause TCP streams to be bursty.
+         */
+        net->ipv4.sysctl_tcp_tso_win_divisor = 3;
 
         net->ipv4.sysctl_tcp_fastopen = TFO_CLIENT_ENABLE;
         spin_lock_init(&net->ipv4.tcp_fastopen_ctx_lock);