[NETFILTER]: nf_conntrack: split out the event cache

[karo-tx-linux.git] / net / netfilter / nf_conntrack_core.c

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index cf6face67af448097093337ac9a36f1d7f075b30..029acc4f9643eb860dcfbe7d9cf1cc58d92323a2 100644 (file)
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -85,73 +85,6 @@ static int nf_conntrack_vmalloc __read_mostly;
 
 static unsigned int nf_conntrack_next_id;
 
-#ifdef CONFIG_NF_CONNTRACK_EVENTS
-ATOMIC_NOTIFIER_HEAD(nf_conntrack_chain);
-ATOMIC_NOTIFIER_HEAD(nf_conntrack_expect_chain);
-
-DEFINE_PER_CPU(struct nf_conntrack_ecache, nf_conntrack_ecache);
-
-/* deliver cached events and clear cache entry - must be called with locally
- * disabled softirqs */
-static inline void
-__nf_ct_deliver_cached_events(struct nf_conntrack_ecache *ecache)
-{
-       DEBUGP("ecache: delivering events for %p\n", ecache->ct);
-       if (nf_ct_is_confirmed(ecache->ct) && !nf_ct_is_dying(ecache->ct)
-           && ecache->events)
-               atomic_notifier_call_chain(&nf_conntrack_chain, ecache->events,
-                                   ecache->ct);
-
-       ecache->events = 0;
-       nf_ct_put(ecache->ct);
-       ecache->ct = NULL;
-}
-
-/* Deliver all cached events for a particular conntrack. This is called
- * by code prior to async packet handling for freeing the skb */
-void nf_ct_deliver_cached_events(const struct nf_conn *ct)
-{
-       struct nf_conntrack_ecache *ecache;
-
-       local_bh_disable();
-       ecache = &__get_cpu_var(nf_conntrack_ecache);
-       if (ecache->ct == ct)
-               __nf_ct_deliver_cached_events(ecache);
-       local_bh_enable();
-}
-
-/* Deliver cached events for old pending events, if current conntrack != old */
-void __nf_ct_event_cache_init(struct nf_conn *ct)
-{
-       struct nf_conntrack_ecache *ecache;
-       
-       /* take care of delivering potentially old events */
-       ecache = &__get_cpu_var(nf_conntrack_ecache);
-       BUG_ON(ecache->ct == ct);
-       if (ecache->ct)
-               __nf_ct_deliver_cached_events(ecache);
-       /* initialize for this conntrack/packet */
-       ecache->ct = ct;
-       nf_conntrack_get(&ct->ct_general);
-}
-
-/* flush the event cache - touches other CPU's data and must not be called
- * while packets are still passing through the code */
-static void nf_ct_event_cache_flush(void)
-{
-       struct nf_conntrack_ecache *ecache;
-       int cpu;
-
-       for_each_possible_cpu(cpu) {
-               ecache = &per_cpu(nf_conntrack_ecache, cpu);
-               if (ecache->ct)
-                       nf_ct_put(ecache->ct);
-       }
-}
-#else
-static inline void nf_ct_event_cache_flush(void) {}
-#endif /* CONFIG_NF_CONNTRACK_EVENTS */
-
 DEFINE_PER_CPU(struct ip_conntrack_stat, nf_conntrack_stat);
 EXPORT_PER_CPU_SYMBOL(nf_conntrack_stat);