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authorJames Morris <jmorris@namei.org>2009-06-09 09:27:53 +1000
committerJames Morris <jmorris@namei.org>2009-06-09 09:27:53 +1000
commit0b4ec6e4e01d98e55ae325a41304cccd87fa4c0f (patch)
tree1e075fdf4aaf0c5c003564b3f3414bb4a92ef2ed /net/ipv4/fib_trie.c
parent04288f42033607099cebf5ca15ce8dcec3a9688b (diff)
parent3af968e066d593bc4dacc021715f3e95ddf0996f (diff)
Merge branch 'master' into next
Diffstat (limited to 'net/ipv4/fib_trie.c')
-rw-r--r--net/ipv4/fib_trie.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index ec0ae490f0b..33c7c85dfe4 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -986,9 +986,12 @@ fib_find_node(struct trie *t, u32 key)
static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
{
int wasfull;
- t_key cindex, key = tn->key;
+ t_key cindex, key;
struct tnode *tp;
+ preempt_disable();
+ key = tn->key;
+
while (tn != NULL && (tp = node_parent((struct node *)tn)) != NULL) {
cindex = tkey_extract_bits(key, tp->pos, tp->bits);
wasfull = tnode_full(tp, tnode_get_child(tp, cindex));
@@ -1007,6 +1010,7 @@ static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
if (IS_TNODE(tn))
tn = (struct tnode *)resize(t, (struct tnode *)tn);
+ preempt_enable();
return (struct node *)tn;
}