netdev - [PATCH][NETNS] Don't memset() netns to zero manually

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Date:	Tue, 09 Oct 2007 15:48:19 +0400
From:	Pavel Emelyanov <xemul@...nvz.org>
To:	David Miller <davem@...emloft.net>
CC:	Linux Netdev List <netdev@...r.kernel.org>, devel@...nvz.org
Subject: [PATCH][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@...nvz.org>

---

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 0e0ca6d..6f71db8 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);
 
-
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