ipv4: Namespaceify tcp_tw_reuse knob

[karo-tx-linux.git] / net / ipv4 / tcp_ipv4.c

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 30d81f533ada5708a61155b589e3835d9af4128d..fe9da4fb96bf967ab27f5179fc5a9ac3576cc693 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -84,7 +84,6 @@
 #include <crypto/hash.h>
 #include <linux/scatterlist.h>
 
-int sysctl_tcp_tw_reuse __read_mostly;
 int sysctl_tcp_low_latency __read_mostly;
 
 #ifdef CONFIG_TCP_MD5SIG
@@ -120,7 +119,7 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
           and use initial timestamp retrieved from peer table.
         */
        if (tcptw->tw_ts_recent_stamp &&
-           (!twp || (sysctl_tcp_tw_reuse &&
+           (!twp || (sock_net(sk)->ipv4.sysctl_tcp_tw_reuse &&
                             get_seconds() - tcptw->tw_ts_recent_stamp > 1))) {
                tp->write_seq = tcptw->tw_snd_nxt + 65535 + 2;
                if (tp->write_seq == 0)
@@ -2456,6 +2455,7 @@ static int __net_init tcp_sk_init(struct net *net)
        net->ipv4.sysctl_tcp_orphan_retries = 0;
        net->ipv4.sysctl_tcp_fin_timeout = TCP_FIN_TIMEOUT;
        net->ipv4.sysctl_tcp_notsent_lowat = UINT_MAX;
+       net->ipv4.sysctl_tcp_tw_reuse = 0;
 
        return 0;
 fail: