tcp: Namespaceify sysctl_tcp_sack

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

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e3aab1c1cf78..45c8e459db49 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -580,7 +580,7 @@ static unsigned int tcp_syn_options(struct sock *sk, struct sk_buff *skb,
                 opts->options |= OPTION_WSCALE;
                 remaining -= TCPOLEN_WSCALE_ALIGNED;
         }
-        if (likely(sysctl_tcp_sack)) {
+        if (likely(sock_net(sk)->ipv4.sysctl_tcp_sack)) {
                 opts->options |= OPTION_SACK_ADVERTISE;
                 if (unlikely(!(OPTION_TS & opts->options)))
                         remaining -= TCPOLEN_SACKPERM_ALIGNED;