--- a/net/core/net-sysfs.c	Thu Apr 09 12:06:38 2009 +0200
+++ b/net/core/net-sysfs.c	Thu Apr 09 12:07:21 2009 +0200
@@ -77,7 +77,9 @@
 	if (endp == buf)
 		goto err;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return -ERESTARTSYS;
+
 	if (dev_isalive(net)) {
 		if ((ret = (*set)(net, new)) == 0)
 			ret = len;
@@ -270,7 +272,6 @@
 			    unsigned long offset)
 {
 	struct net_device *dev = to_net_dev(d);
-	struct net_device_stats *stats;
 	ssize_t ret = -EINVAL;
 
 	WARN_ON(offset > sizeof(struct net_device_stats) ||
@@ -278,7 +279,7 @@
 
 	read_lock(&dev_base_lock);
 	if (dev_isalive(dev)) {
-		stats = dev->get_stats(dev);
+		const struct net_device_stats *stats = dev_get_stats(dev);
 		ret = sprintf(buf, fmt_ulong,
 			      *(unsigned long *)(((u8 *) stats) + offset));
 	}
@@ -428,6 +429,9 @@
 	struct net_device *dev = to_net_dev(d);
 	int retval;
 
+	if (!net_eq(dev_net(dev), &init_net))
+		return 0;
+
 	/* pass interface to uevent. */
 	retval = add_uevent_var(env, "INTERFACE=%s", dev->name);
 	if (retval)
@@ -476,6 +480,10 @@
 	struct device *dev = &(net->dev);
 
 	kobject_get(&dev->kobj);
+
+	if (dev_net(net) != &init_net)
+		return;
+
 	device_del(dev);
 }
 
@@ -490,7 +498,7 @@
 	dev->groups = groups;
 
 	BUILD_BUG_ON(BUS_ID_SIZE < IFNAMSIZ);
-	strlcpy(dev->bus_id, net->name, BUS_ID_SIZE);
+	dev_set_name(dev, net->name);
 
 #ifdef CONFIG_SYSFS
 	*groups++ = &netstat_group;
@@ -501,6 +509,9 @@
 #endif
 #endif /* CONFIG_SYSFS */
 
+	if (dev_net(net) != &init_net)
+		return 0;
+
 	return device_add(dev);
 }