Turn the unused size field into a useful counter for the number
of routes.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>


--- a/net/ipv4/fib_trie.c	2008-01-11 22:30:28.000000000 -0800
+++ b/net/ipv4/fib_trie.c	2008-01-11 22:30:36.000000000 -0800
@@ -149,10 +149,10 @@ struct trie_stat {
 
 struct trie {
 	struct node *trie;
+	unsigned int size;
 #ifdef CONFIG_IP_FIB_TRIE_STATS
 	struct trie_use_stats stats;
 #endif
-	int size;
 };
 
 static void put_child(struct trie *t, struct tnode *tn, int i, struct node *n);
@@ -1052,7 +1052,6 @@ fib_insert_node(struct trie *t, int *err
 		insert_leaf_info(&l->list, li);
 		goto done;
 	}
-	t->size++;
 	l = leaf_new();
 
 	if (!l) {
@@ -1267,6 +1266,7 @@ static int fn_trie_insert(struct fib_tab
 
 	list_add_tail_rcu(&new_fa->fa_list,
 			  (fa ? &fa->fa_list : fa_head));
+	t->size++;
 
 	rt_cache_flush(-1);
 	rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id,

-- 
Stephen Hemminger <stephen.hemminger@vyatta.com>

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