IPVS: netns, defense work timer.

This patch makes defense work timer per name-space,
A net ptr had to be added to the ipvs struct,
since it's needed by defense_work_handler.

[ horms@verge.net.au: Use cancel_delayed_work_sync() instead of
	              cancel_rearming_delayed_work(). Found during
		      merge conflict resoliution ]
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/include/net/netns/ip_vs.h b/include/net/netns/ip_vs.h
index c4b1abf..4133261 100644
--- a/include/net/netns/ip_vs.h
+++ b/include/net/netns/ip_vs.h
@@ -71,6 +71,7 @@
 
 	int			num_services;    /* no of virtual services */
 	/* 1/rate drop and drop-entry variables */
+	struct delayed_work	defense_work;   /* Work handler */
 	int			drop_rate;
 	int			drop_counter;
 	atomic_t		dropentry;
@@ -129,6 +130,8 @@
 	/* multicast interface name */
 	char			master_mcast_ifn[IP_VS_IFNAME_MAXLEN];
 	char			backup_mcast_ifn[IP_VS_IFNAME_MAXLEN];
+	/* net name space ptr */
+	struct net		*net;            /* Needed by timer routines */
 };
 
 #endif /* IP_VS_H_ */