[NET]: Make the loopback device per network namespace.

[linux-2.6-block.git] / drivers / net / loopback.c

diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index f3018bb7570d87516c3f53e1c73fc1dd2de66258..0f9d8c60c964d85b7b32161bcc282f524ddec28f 100644 (file)
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -57,6 +57,7 @@
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/percpu.h>
+#include <net/net_namespace.h>
 
 struct pcpu_lstats {
        unsigned long packets;
@@ -252,7 +253,7 @@ static void loopback_setup(struct net_device *dev)
 }
 
 /* Setup and register the loopback device. */
-static int __init loopback_init(void)
+static int loopback_net_init(struct net *net)
 {
        struct net_device *dev;
        int err;
@@ -262,12 +263,13 @@ static int __init loopback_init(void)
        if (!dev)
                goto out;
 
+       dev->nd_net = net;
        err = register_netdev(dev);
        if (err)
                goto out_free_netdev;
 
        err = 0;
-       loopback_dev = dev;
+       net->loopback_dev = dev;
 
 out:
        if (err)
@@ -279,7 +281,21 @@ out_free_netdev:
        goto out;
 }
 
-fs_initcall(loopback_init);
+static void loopback_net_exit(struct net *net)
+{
+       struct net_device *dev = net->loopback_dev;
+
+       unregister_netdev(dev);
+}
+
+static struct pernet_operations loopback_net_ops = {
+       .init = loopback_net_init,
+       .exit = loopback_net_exit,
+};
+
+static int __init loopback_init(void)
+{
+       return register_pernet_device(&loopback_net_ops);
+}
 
-struct net_device *loopback_dev;
-EXPORT_SYMBOL(loopback_dev);
+fs_initcall(loopback_init);