net: Move all of the network sysctls without a namespace into init_net.

This makes it clearer which sysctls are relative to your current network
namespace.

This makes it a little less error prone by not exposing sysctls for the
initial network namespace in other namespaces.

This is the same way we handle all of our other network interfaces to
userspace and I can't honestly remember why we didn't do this for
sysctls right from the start.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c
index 04e9c0d..5edce8f 100644
--- a/net/appletalk/sysctl_net_atalk.c
+++ b/net/appletalk/sysctl_net_atalk.c
@@ -52,10 +52,10 @@
 
 void atalk_register_sysctl(void)
 {
-	atalk_table_header = register_sysctl_paths(atalk_path, atalk_table);
+	atalk_table_header = register_net_sysctl_table(&init_net, atalk_path, atalk_table);
 }
 
 void atalk_unregister_sysctl(void)
 {
-	unregister_sysctl_table(atalk_table_header);
+	unregister_net_sysctl_table(atalk_table_header);
 }