[NETNS]: separate af_packet netns data

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/netns/packet.h

@@ -0,0 +1,15 @@
+/*
+ * Packet network namespace
+ */
+#ifndef __NETNS_PACKET_H__
+#define __NETNS_PACKET_H__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+struct netns_packet {
+	rwlock_t		sklist_lock;
+	struct hlist_head	sklist;
+};
+
+#endif /* __NETNS_PACKET_H__ */