[NET]: Hide the net_ns kmem cache

[safe/jmp/linux-2.6] / net / core / net_namespace.c

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index a044e2d..e9f0964 100644 (file)
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -17,8 +17,6 @@ static DEFINE_MUTEX(net_mutex);
 
 LIST_HEAD(net_namespace_list);
 
-static struct kmem_cache *net_cachep;
-
 struct net init_net;
 EXPORT_SYMBOL_GPL(init_net);
 
@@ -59,6 +57,8 @@ out_undo:
 }
 
 #ifdef CONFIG_NET_NS
+static struct kmem_cache *net_cachep;
+
 static struct net *net_alloc(void)
 {
        return kmem_cache_zalloc(net_cachep, GFP_KERNEL);
@@ -167,9 +167,11 @@ static int __init net_ns_init(void)
        int err;
 
        printk(KERN_INFO "net_namespace: %zd bytes\n", sizeof(struct net));
+#ifdef CONFIG_NET_NS
        net_cachep = kmem_cache_create("net_namespace", sizeof(struct net),
                                        SMP_CACHE_BYTES,
                                        SLAB_PANIC, NULL);
+#endif
        mutex_lock(&net_mutex);
        err = setup_net(&init_net);