diff options
| -rw-r--r-- | net/netfilter/nf_conncount.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c index cb33709138df..8acae4a3e4c0 100644 --- a/net/netfilter/nf_conncount.c +++ b/net/netfilter/nf_conncount.c @@ -144,8 +144,10 @@ static bool conn_free(struct nf_conncount_list *list, list->count--; conn->dead = true; list_del_rcu(&conn->node); - if (list->count == 0) + if (list->count == 0) { + list->dead = true; free_entry = true; + } spin_unlock_bh(&list->list_lock); call_rcu(&conn->rcu_head, __conn_free); @@ -248,7 +250,7 @@ void nf_conncount_list_init(struct nf_conncount_list *list) { spin_lock_init(&list->list_lock); INIT_LIST_HEAD(&list->head); - list->count = 1; + list->count = 0; list->dead = false; } EXPORT_SYMBOL_GPL(nf_conncount_list_init); @@ -262,6 +264,7 @@ bool nf_conncount_gc_list(struct net *net, struct nf_conn *found_ct; unsigned int collected = 0; bool free_entry = false; + bool ret = false; list_for_each_entry_safe(conn, conn_n, &list->head, node) { found = find_or_evict(net, list, conn, &free_entry); @@ -291,7 +294,15 @@ bool nf_conncount_gc_list(struct net *net, if (collected > CONNCOUNT_GC_MAX_NODES) return false; } - return false; + + spin_lock_bh(&list->list_lock); + if (!list->count) { + list->dead = true; + ret = true; + } + spin_unlock_bh(&list->list_lock); + + return ret; } EXPORT_SYMBOL_GPL(nf_conncount_gc_list); @@ -417,6 +428,7 @@ insert_tree(struct net *net, nf_conncount_list_init(&rbconn->list); list_add(&conn->node, &rbconn->list.head); count = 1; + rbconn->list.count = count; rb_link_node(&rbconn->node, parent, rbnode); rb_insert_color(&rbconn->node, root); |