tipc: make cluster size threshold for monitoring configurable

In this commit, we introduce support to configure the minimum
threshold to activate the new link monitoring algorithm.

Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/monitor.h b/net/tipc/monitor.h
index 598459c..91f5dd09 100644
--- a/net/tipc/monitor.h
+++ b/net/tipc/monitor.h
@@ -69,5 +69,6 @@
 			int bearer_id);
 void tipc_mon_remove_peer(struct net *net, u32 addr, int bearer_id);
 
+int tipc_nl_monitor_set_threshold(struct net *net, u32 cluster_size);
 extern const int tipc_max_domain_size;
 #endif