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[NET]: Hide the net_ns kmem cache

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This cache is only required to create new namespaces,
but we won't have them in CONFIG_NET_NS=n case.

Hide it under the appropriate ifdef.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2007-11-01 00:46:50 -07:00 committed by David S. Miller
parent 1a2ee93d28
commit d57a9212e0
1 changed files with 4 additions and 2 deletions
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6
net/core/net_namespace.c
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@ -17,8 +17,6 @@ static DEFINE_MUTEX(net_mutex);
LIST_HEAD(net_namespace_list); LIST_HEAD(net_namespace_list);
static struct kmem_cache *net_cachep;
struct net init_net; struct net init_net;
EXPORT_SYMBOL_GPL(init_net); EXPORT_SYMBOL_GPL(init_net);
@ -59,6 +57,8 @@ out_undo:
} }
#ifdef CONFIG_NET_NS #ifdef CONFIG_NET_NS
static struct kmem_cache *net_cachep;
static struct net *net_alloc(void) static struct net *net_alloc(void)
{ {
return kmem_cache_zalloc(net_cachep, GFP_KERNEL); return kmem_cache_zalloc(net_cachep, GFP_KERNEL);
@ -167,9 +167,11 @@ static int __init net_ns_init(void)
int err; int err;
printk(KERN_INFO "net_namespace: %zd bytes\n", sizeof(struct net)); 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), net_cachep = kmem_cache_create("net_namespace", sizeof(struct net),
SMP_CACHE_BYTES, SMP_CACHE_BYTES,
SLAB_PANIC, NULL); SLAB_PANIC, NULL);
#endif
mutex_lock(&net_mutex); mutex_lock(&net_mutex);
err = setup_net(&init_net); err = setup_net(&init_net);