4 files changed, 6 insertions, 5 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 5519035491e7..d03a4076e227 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -109,7 +109,6 @@ struct frag_hdr {
 #include <net/sock.h>
 
 /* sysctls */
-extern int sysctl_ipv6_bindv6only;
 extern int sysctl_mld_max_msf;
 
 extern struct ctl_path net_ipv6_ctl_path[];
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 58fbf30d9fdb..42b9b412fb87 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -11,6 +11,7 @@ struct netns_sysctl_ipv6 {
 #ifdef CONFIG_SYSCTL
         struct ctl_table_header *table;
 #endif
+        int bindv6only;
 };
 
 struct netns_ipv6 {
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 72b898fe2dde..70662bf8ab98 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -66,8 +66,6 @@ MODULE_AUTHOR("Cast of dozens");
 MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
 MODULE_LICENSE("GPL");
 
-int sysctl_ipv6_bindv6only __read_mostly;
-
 /* The inetsw6 table contains everything that inet6_create needs to
  * build a new socket.
  */
@@ -193,7 +191,7 @@ lookup_protocol:
         np->mcast_hops  = -1;
         np->mc_loop     = 1;
         np->pmtudisc    = IPV6_PMTUDISC_WANT;
-        np->ipv6only    = sysctl_ipv6_bindv6only;
+        np->ipv6only    = init_net.ipv6.sysctl.bindv6only;
 
         /* Init the ipv4 part of the socket since we can have sockets
          * using v6 API for ipv4.
@@ -721,6 +719,7 @@ static void cleanup_ipv6_mibs(void)
 
 static int inet6_net_init(struct net *net)
 {
+        net->ipv6.sysctl.bindv6only = 0;
         return 0;
 }
 
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 7970f3366f87..13be97a928cb 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -35,7 +35,7 @@ static ctl_table ipv6_table_template[] = {
         {
                 .ctl_name       = NET_IPV6_BINDV6ONLY,
                 .procname       = "bindv6only",
-                .data           = &sysctl_ipv6_bindv6only,
+                .data           = &init_net.ipv6.sysctl.bindv6only,
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec
@@ -116,6 +116,8 @@ static int ipv6_sysctl_net_init(struct net *net)
         ipv6_table[0].child = ipv6_route_table;
         ipv6_table[1].child = ipv6_icmp_table;
 
+        ipv6_table[2].data = &net->ipv6.sysctl.bindv6only;
+
         net->ipv6.sysctl.table = register_net_sysctl_table(net, net_ipv6_ctl_path,
                                                            ipv6_table);
         if (!net->ipv6.sysctl.table)