[FIB]: Add netns to fib_rules_ops.

The backward link from FIB rules operations to the network namespace
will allow to simplify the API a bit.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index c1fae23..964e658 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -249,6 +249,7 @@
 	.policy		= dn_fib_rule_policy,
 	.rules_list	= LIST_HEAD_INIT(dn_fib_rules_ops.rules_list),
 	.owner		= THIS_MODULE,
+	.fro_net	= &init_net,
 };
 
 void __init dn_fib_rules_init(void)