X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fcore%2Fnet_namespace.c;h=26e941d912e8e68dd1e308e705fec2bbd92d37fc;hb=80a9fad8e89a23c31bab9c228a88a391c4f8d698;hp=3f6d37deac4505f6bf75d4a43749fc08b3013091;hpb=cb834e7cc0e8b223386f219c1d1986846c87c55f;p=linux-2.6

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 3f6d37deac..26e941d912 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -18,7 +18,7 @@ static DEFINE_MUTEX(net_mutex);
 LIST_HEAD(net_namespace_list);
 
 struct net init_net;
-EXPORT_SYMBOL_GPL(init_net);
+EXPORT_SYMBOL(init_net);
 
 /*
  * setup_net runs the initializers for the network namespace object.
@@ -58,6 +58,7 @@ out_undo:
 
 #ifdef CONFIG_NET_NS
 static struct kmem_cache *net_cachep;
+static struct workqueue_struct *netns_wq;
 
 static struct net *net_alloc(void)
 {
@@ -149,7 +150,7 @@ void __put_net(struct net *net)
 {
 	/* Cleanup the network namespace in process context */
 	INIT_WORK(&net->work, cleanup_net);
-	schedule_work(&net->work);
+	queue_work(netns_wq, &net->work);
 }
 EXPORT_SYMBOL_GPL(__put_net);
 
@@ -171,7 +172,13 @@ static int __init net_ns_init(void)
 	net_cachep = kmem_cache_create("net_namespace", sizeof(struct net),
 					SMP_CACHE_BYTES,
 					SLAB_PANIC, NULL);
+
+	/* Create workqueue for cleanup */
+	netns_wq = create_singlethread_workqueue("netns");
+	if (!netns_wq)
+		panic("Could not create netns workq");
 #endif
+
 	mutex_lock(&net_mutex);
 	err = setup_net(&init_net);
 
@@ -188,6 +195,7 @@ static int __init net_ns_init(void)
 
 pure_initcall(net_ns_init);
 
+#ifdef CONFIG_NET_NS
 static int register_pernet_operations(struct list_head *list,
 				      struct pernet_operations *ops)
 {
@@ -228,6 +236,23 @@ static void unregister_pernet_operations(struct pernet_operations *ops)
 			ops->exit(net);
 }
 
+#else
+
+static int register_pernet_operations(struct list_head *list,
+				      struct pernet_operations *ops)
+{
+	if (ops->init == NULL)
+		return 0;
+	return ops->init(&init_net);
+}
+
+static void unregister_pernet_operations(struct pernet_operations *ops)
+{
+	if (ops->exit)
+		ops->exit(&init_net);
+}
+#endif
+
 /**
  *      register_pernet_subsys - register a network namespace subsystem
  *	@ops:  pernet operations structure for the subsystem