[NETNS]: Don't memset() netns to zero manually

The newly created net namespace is set to 0 with memset()
in setup_net(). The setup_net() is also called for the
init_net_ns(), which is zeroed naturally as a global var.

So remove this memset and allocate new nets with the
kmem_cache_zalloc().

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 0e0ca6d06fa5..6f71db8c4428 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -24,7 +24,7 @@ EXPORT_SYMBOL_GPL(init_net);
 
 static struct net *net_alloc(void)
 {
-        return kmem_cache_alloc(net_cachep, GFP_KERNEL);
+        return kmem_cache_zalloc(net_cachep, GFP_KERNEL);
 }
 
 static void net_free(struct net *net)
@@ -90,7 +90,6 @@ static int setup_net(struct net *net)
         struct pernet_operations *ops;
         int error;
 
-        memset(net, 0, sizeof(struct net));
         atomic_set(&net->count, 1);
         atomic_set(&net->use_count, 0);