* Patrick McHardy <kaber@trash.net>
*/
-#define VERSION "0.404"
+#define VERSION "0.406"
#include <linux/config.h>
#include <asm/uaccess.h>
#include "fib_lookup.h"
#undef CONFIG_IP_FIB_TRIE_STATS
-#define MAX_CHILDS 16384
+#define MAX_STAT_DEPTH 32
#define KEYLENGTH (8*sizeof(t_key))
#define MASK_PFX(k, l) (((l)==0)?0:(k >> (KEYLENGTH-l)) << (KEYLENGTH-l))
unsigned int tnodes;
unsigned int leaves;
unsigned int nullpointers;
- unsigned int nodesizes[MAX_CHILDS];
+ unsigned int nodesizes[MAX_STAT_DEPTH];
};
struct trie {
static struct node *fib_trie_get_first(struct fib_trie_iter *iter,
struct trie *t)
{
- struct node *n = rcu_dereference(t->trie);
+ struct node *n ;
+
+ if(!t)
+ return NULL;
+
+ n = rcu_dereference(t->trie);
+
+ if(!iter)
+ return NULL;
if (n && IS_TNODE(n)) {
iter->tnode = (struct tnode *) n;
int i;
s->tnodes++;
- s->nodesizes[tn->bits]++;
+ if(tn->bits < MAX_STAT_DEPTH)
+ s->nodesizes[tn->bits]++;
+
for (i = 0; i < (1<<tn->bits); i++)
if (!tn->child[i])
s->nullpointers++;
seq_printf(seq, "\tInternal nodes: %d\n\t", stat->tnodes);
bytes += sizeof(struct tnode) * stat->tnodes;
- max = MAX_CHILDS-1;
- while (max >= 0 && stat->nodesizes[max] == 0)
+ max = MAX_STAT_DEPTH;
+ while (max > 0 && stat->nodesizes[max-1] == 0)
max--;
pointers = 0;