[NETNS][RAW]: Create the /proc/net/raw(6) in each namespace.

To do so, just register the proper subsystem and create files in
->init callbacks.

No other special per-namespace handling for raw sockets is required.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/raw.c

@@ -1003,15 +1003,31 @@ static const struct file_operations raw_seq_fops = {
 	.release = seq_release_net,
 };
 
-int __init raw_proc_init(void)
+static __net_init int raw_init_net(struct net *net)
 {
-	if (!proc_net_fops_create(&init_net, "raw", S_IRUGO, &raw_seq_fops))
+	if (!proc_net_fops_create(net, "raw", S_IRUGO, &raw_seq_fops))
 		return -ENOMEM;
+
 	return 0;
 }
 
+static __net_exit void raw_exit_net(struct net *net)
+{
+	proc_net_remove(net, "raw");
+}
+
+static __net_initdata struct pernet_operations raw_net_ops = {
+	.init = raw_init_net,
+	.exit = raw_exit_net,
+};
+
+int __init raw_proc_init(void)
+{
+	return register_pernet_subsys(&raw_net_ops);
+}
+
 void __init raw_proc_exit(void)
 {
-	proc_net_remove(&init_net, "raw");
+	unregister_pernet_subsys(&raw_net_ops);
 }
 #endif /* CONFIG_PROC_FS */

net/ipv6/raw.c

@@ -1270,16 +1270,32 @@ static const struct file_operations raw6_seq_fops = {
 	.release =	seq_release_net,
 };
 
-int __init raw6_proc_init(void)
+static int raw6_init_net(struct net *net)
 {
-	if (!proc_net_fops_create(&init_net, "raw6", S_IRUGO, &raw6_seq_fops))
+	if (!proc_net_fops_create(net, "raw6", S_IRUGO, &raw6_seq_fops))
 		return -ENOMEM;
+
 	return 0;
 }
 
+static void raw6_exit_net(struct net *net)
+{
+	proc_net_remove(net, "raw6");
+}
+
+static struct pernet_operations raw6_net_ops = {
+	.init = raw6_init_net,
+	.exit = raw6_exit_net,
+};
+
+int __init raw6_proc_init(void)
+{
+	return register_pernet_subsys(&raw6_net_ops);
+}
+
 void raw6_proc_exit(void)
 {
-	proc_net_remove(&init_net, "raw6");
+	unregister_pernet_subsys(&raw6_net_ops);
 }
 #endif	/* CONFIG_PROC_FS */