[NETNS]: Pass namespace through ip_rt_ioctl.

... up to rtentry_to_fib_config

Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index d76f8d8..bcf8c8a 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -795,7 +795,7 @@
 		case SIOCADDRT:
 		case SIOCDELRT:
 		case SIOCRTMSG:
-			err = ip_rt_ioctl(cmd, (void __user *)arg);
+			err = ip_rt_ioctl(sk->sk_net, cmd, (void __user *)arg);
 			break;
 		case SIOCDARP:
 		case SIOCGARP:
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 8b44e31..15909a9 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -437,7 +437,7 @@
  *	Handle IP routing ioctl calls. These are used to manipulate the routing tables
  */
 
-int ip_rt_ioctl(unsigned int cmd, void __user *arg)
+int ip_rt_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 {
 	struct fib_config cfg;
 	struct rtentry rt;
@@ -453,18 +453,18 @@
 			return -EFAULT;
 
 		rtnl_lock();
-		err = rtentry_to_fib_config(&init_net, cmd, &rt, &cfg);
+		err = rtentry_to_fib_config(net, cmd, &rt, &cfg);
 		if (err == 0) {
 			struct fib_table *tb;
 
 			if (cmd == SIOCDELRT) {
-				tb = fib_get_table(&init_net, cfg.fc_table);
+				tb = fib_get_table(net, cfg.fc_table);
 				if (tb)
 					err = tb->tb_delete(tb, &cfg);
 				else
 					err = -ESRCH;
 			} else {
-				tb = fib_new_table(&init_net, cfg.fc_table);
+				tb = fib_new_table(net, cfg.fc_table);
 				if (tb)
 					err = tb->tb_insert(tb, &cfg);
 				else
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 4bc3a57..a52b585 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -302,7 +302,7 @@
 
 	mm_segment_t oldfs = get_fs();
 	set_fs(get_ds());
-	res = ip_rt_ioctl(cmd, (void __user *) arg);
+	res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
 	set_fs(oldfs);
 	return res;
 }