diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/fib_trie.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index e2b39fdd6a0..5d2b43d9f8f 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -50,7 +50,7 @@ * Patrick McHardy <kaber@trash.net> */ -#define VERSION "0.407" +#define VERSION "0.408" #include <asm/uaccess.h> #include <asm/system.h> @@ -458,6 +458,7 @@ static struct node *resize(struct trie *t, struct tnode *tn) struct tnode *old_tn; int inflate_threshold_use; int halve_threshold_use; + int max_resize; if (!tn) return NULL; @@ -558,7 +559,8 @@ static struct node *resize(struct trie *t, struct tnode *tn) inflate_threshold_use = inflate_threshold; err = 0; - while ((tn->full_children > 0 && + max_resize = 10; + while ((tn->full_children > 0 && max_resize-- && 50 * (tn->full_children + tnode_child_length(tn) - tn->empty_children) >= inflate_threshold_use * tnode_child_length(tn))) { @@ -573,6 +575,15 @@ static struct node *resize(struct trie *t, struct tnode *tn) } } + if (max_resize < 0) { + if (!tn->parent) + printk(KERN_WARNING "Fix inflate_threshold_root. Now=%d size=%d bits\n", + inflate_threshold_root, tn->bits); + else + printk(KERN_WARNING "Fix inflate_threshold. Now=%d size=%d bits\n", + inflate_threshold, tn->bits); + } + check_tnode(tn); /* @@ -589,7 +600,8 @@ static struct node *resize(struct trie *t, struct tnode *tn) halve_threshold_use = halve_threshold; err = 0; - while (tn->bits > 1 && + max_resize = 10; + while (tn->bits > 1 && max_resize-- && 100 * (tnode_child_length(tn) - tn->empty_children) < halve_threshold_use * tnode_child_length(tn)) { @@ -604,6 +616,14 @@ static struct node *resize(struct trie *t, struct tnode *tn) } } + if (max_resize < 0) { + if (!tn->parent) + printk(KERN_WARNING "Fix halve_threshold_root. Now=%d size=%d bits\n", + halve_threshold_root, tn->bits); + else + printk(KERN_WARNING "Fix halve_threshold. Now=%d size=%d bits\n", + halve_threshold, tn->bits); + } /* Only one child remains */ if (tn->empty_children == tnode_child_length(tn) - 1) |