From d57a9212e00779181d8d820887dcab3e9d529194 Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@openvz.org>
Date: Thu, 1 Nov 2007 00:46:50 -0700
Subject: [PATCH] [NET]: Hide the net_ns kmem cache
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>
---
net/core/net_namespace.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index a044e2d9a8f0..e9f0964ce70b 100644
--- 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);
--
2.34.1