[NETFILTER] ipv4: small cleanups

[powerpc.git] / net / ipv4 / fib_trie.c

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 50c0519..705e3ce 100644 (file)
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -286,6 +286,8 @@ static inline void check_tnode(const struct tnode *tn)
 
 static int halve_threshold = 25;
 static int inflate_threshold = 50;
+static int halve_threshold_root = 15;
+static int inflate_threshold_root = 25; 
 
 
 static void __alias_free_mem(struct rcu_head *head)
@@ -449,6 +451,8 @@ static struct node *resize(struct trie *t, struct tnode *tn)
        int i;
        int err = 0;
        struct tnode *old_tn;
+       int inflate_threshold_use;
+       int halve_threshold_use;
 
        if (!tn)
                return NULL;
@@ -541,10 +545,17 @@ static struct node *resize(struct trie *t, struct tnode *tn)
 
        check_tnode(tn);
 
+       /* Keep root node larger  */
+
+       if(!tn->parent)
+               inflate_threshold_use = inflate_threshold_root;
+       else 
+               inflate_threshold_use = inflate_threshold;
+
        err = 0;
        while ((tn->full_children > 0 &&
               50 * (tn->full_children + tnode_child_length(tn) - tn->empty_children) >=
-                               inflate_threshold * tnode_child_length(tn))) {
+                               inflate_threshold_use * tnode_child_length(tn))) {
 
                old_tn = tn;
                tn = inflate(t, tn);
@@ -564,10 +575,18 @@ static struct node *resize(struct trie *t, struct tnode *tn)
         * node is above threshold.
         */
 
+
+       /* Keep root node larger  */
+
+       if(!tn->parent)
+               halve_threshold_use = halve_threshold_root;
+       else 
+               halve_threshold_use = halve_threshold;
+
        err = 0;
        while (tn->bits > 1 &&
               100 * (tnode_child_length(tn) - tn->empty_children) <
-              halve_threshold * tnode_child_length(tn)) {
+              halve_threshold_use * tnode_child_length(tn)) {
 
                old_tn = tn;
                tn = halve(t, tn);
@@ -2359,6 +2378,7 @@ static unsigned fib_flag_trans(int type, u32 mask, const struct fib_info *fi)
  */
 static int fib_route_seq_show(struct seq_file *seq, void *v)
 {
+       const struct fib_trie_iter *iter = seq->private;
        struct leaf *l = v;
        int i;
        char bf[128];
@@ -2370,6 +2390,8 @@ static int fib_route_seq_show(struct seq_file *seq, void *v)
                return 0;
        }
 
+       if (iter->trie == trie_local)
+               return 0;
        if (IS_TNODE(l))
                return 0;
 
@@ -2385,7 +2407,7 @@ static int fib_route_seq_show(struct seq_file *seq, void *v)
                prefix = htonl(l->key);
 
                list_for_each_entry_rcu(fa, &li->falh, fa_list) {
-                       const struct fib_info *fi = rcu_dereference(fa->fa_info);
+                       const struct fib_info *fi = fa->fa_info;
                        unsigned flags = fib_flag_trans(fa->fa_type, mask, fi);
 
                        if (fa->fa_type == RTN_BROADCAST