[NETNS]: Add netns parameter to fib_rules_(un)register.

The patch extends the different fib rules API in order to pass the
network namespace pointer. That will allow to access the different
tables from a namespace relative object. As usual, the pointer to the
init_net variable is passed as parameter so we don't break the
network.

Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 2364db1..f7351b0 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -101,8 +101,8 @@
 	return frh->table;
 }
 
-extern int			fib_rules_register(struct fib_rules_ops *);
-extern int			fib_rules_unregister(struct fib_rules_ops *);
+extern int fib_rules_register(struct net *, struct fib_rules_ops *);
+extern int fib_rules_unregister(struct net *, struct fib_rules_ops *);
 extern void                     fib_rules_cleanup_ops(struct fib_rules_ops *);
 
 extern int			fib_rules_lookup(struct fib_rules_ops *,