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authorHannes Frederic Sowa <hannes@stressinduktion.org>2013-01-05 16:10:48 +0000
committerDavid S. Miller <davem@davemloft.net>2013-01-06 21:09:56 -0800
commit5d134f1c1f36166e8a738de92c4d2f4c262ff91b (patch)
tree6d1504359c7f1ade1c79da0e468a2a409af5c56c /net/ipv4/tcp_output.c
parent71bcdba06db91ceaaffe019b6c958b5faf06012a (diff)
downloadlinux-5d134f1c1f36166e8a738de92c4d2f4c262ff91b.tar.gz
linux-5d134f1c1f36166e8a738de92c4d2f4c262ff91b.tar.xz
tcp: make sysctl_tcp_ecn namespace aware
As per suggestion from Eric Dumazet this patch makes tcp_ecn sysctl namespace aware. The reason behind this patch is to ease the testing of ecn problems on the internet and allows applications to tune their own use of ecn. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Miller <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 5d451593ef16..667a6adfccf8 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -314,7 +314,7 @@ static inline void TCP_ECN_send_syn(struct sock *sk, struct sk_buff *skb)
struct tcp_sock *tp = tcp_sk(sk);
tp->ecn_flags = 0;
- if (sysctl_tcp_ecn == 1) {
+ if (sock_net(sk)->ipv4.sysctl_tcp_ecn == 1) {
TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_ECE | TCPHDR_CWR;
tp->ecn_flags = TCP_ECN_OK;
}