Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

53 files changed, 2823 insertions, 676 deletions

diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
index 9e5750079e0..3ebc36afae1 100644
--- a/include/linux/netfilter_ipv4.h
+++ b/include/linux/netfilter_ipv4.h
@@ -75,12 +75,6 @@ enum nf_ip_hook_priorities {
 #define SO_ORIGINAL_DST 80
 
 #ifdef __KERNEL__
-#ifdef CONFIG_NETFILTER_DEBUG
-void nf_debug_ip_local_deliver(struct sk_buff *skb);
-void nf_debug_ip_loopback_xmit(struct sk_buff *newskb);
-void nf_debug_ip_finish_output2(struct sk_buff *skb);
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
 extern int ip_route_me_harder(struct sk_buff **pskb);
 
 /* Call this before modifying an existing IP packet: ensures it is
diff --git a/include/linux/netfilter_ipv4/ip_conntrack_core.h b/include/linux/netfilter_ipv4/ip_conntrack_core.h
index d84be02cb4f..694aec9b478 100644
--- a/include/linux/netfilter_ipv4/ip_conntrack_core.h
+++ b/include/linux/netfilter_ipv4/ip_conntrack_core.h
@@ -1,7 +1,6 @@
 #ifndef _IP_CONNTRACK_CORE_H
 #define _IP_CONNTRACK_CORE_H
 #include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 /* This header is used to share core functionality between the
    standalone connection tracking module, and the compatibility layer's use
@@ -47,6 +46,6 @@ static inline int ip_conntrack_confirm(struct sk_buff **pskb)
 
 extern struct list_head *ip_conntrack_hash;
 extern struct list_head ip_conntrack_expect_list;
-DECLARE_RWLOCK_EXTERN(ip_conntrack_lock);
+extern rwlock_t ip_conntrack_lock;
 #endif /* _IP_CONNTRACK_CORE_H */
 
diff --git a/include/linux/netfilter_ipv4/ip_nat.h b/include/linux/netfilter_ipv4/ip_nat.h
index 2b72b86176f..e201ec6e990 100644
--- a/include/linux/netfilter_ipv4/ip_nat.h
+++ b/include/linux/netfilter_ipv4/ip_nat.h
@@ -50,10 +50,9 @@ struct ip_nat_multi_range_compat
 
 #ifdef __KERNEL__
 #include <linux/list.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 /* Protects NAT hash tables, and NAT-private part of conntracks. */
-DECLARE_RWLOCK_EXTERN(ip_nat_lock);
+extern rwlock_t ip_nat_lock;
 
 /* The structure embedded in the conntrack structure. */
 struct ip_nat_info
diff --git a/include/linux/netfilter_ipv4/listhelp.h b/include/linux/netfilter_ipv4/listhelp.h
index f2ae7c5e57b..360429f4873 100644
--- a/include/linux/netfilter_ipv4/listhelp.h
+++ b/include/linux/netfilter_ipv4/listhelp.h
@@ -2,7 +2,6 @@
 #define _LISTHELP_H
 #include <linux/config.h>
 #include <linux/list.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 /* Header to do more comprehensive job than linux/list.h; assume list
    is first entry in structure. */
diff --git a/include/linux/netfilter_ipv4/lockhelp.h b/include/linux/netfilter_ipv4/lockhelp.h
deleted file mode 100644
index a3288633ab4..00000000000
--- a/include/linux/netfilter_ipv4/lockhelp.h
+++ /dev/null
@@ -1,129 +0,0 @@
-#ifndef _LOCKHELP_H
-#define _LOCKHELP_H
-#include <linux/config.h>
-
-#include <linux/spinlock.h>
-#include <asm/atomic.h>
-#include <linux/interrupt.h>
-#include <linux/smp.h>
-
-/* Header to do help in lock debugging. */
-
-#ifdef CONFIG_NETFILTER_DEBUG
-struct spinlock_debug
-{
-	spinlock_t l;
-	atomic_t locked_by;
-};
-
-struct rwlock_debug
-{
-	rwlock_t l;
-	long read_locked_map;
-	long write_locked_map;
-};
-
-#define DECLARE_LOCK(l) 						\
-struct spinlock_debug l = { SPIN_LOCK_UNLOCKED, ATOMIC_INIT(-1) }
-#define DECLARE_LOCK_EXTERN(l) 			\
-extern struct spinlock_debug l
-#define DECLARE_RWLOCK(l)				\
-struct rwlock_debug l = { RW_LOCK_UNLOCKED, 0, 0 }
-#define DECLARE_RWLOCK_EXTERN(l)		\
-extern struct rwlock_debug l
-
-#define MUST_BE_LOCKED(l)						\
-do { if (atomic_read(&(l)->locked_by) != smp_processor_id())		\
-	printk("ASSERT %s:%u %s unlocked\n", __FILE__, __LINE__, #l);	\
-} while(0)
-
-#define MUST_BE_UNLOCKED(l)						\
-do { if (atomic_read(&(l)->locked_by) == smp_processor_id())		\
-	printk("ASSERT %s:%u %s locked\n", __FILE__, __LINE__, #l);	\
-} while(0)
-
-/* Write locked OK as well. */
-#define MUST_BE_READ_LOCKED(l)						    \
-do { if (!((l)->read_locked_map & (1UL << smp_processor_id()))		    \
-	 && !((l)->write_locked_map & (1UL << smp_processor_id())))	    \
-	printk("ASSERT %s:%u %s not readlocked\n", __FILE__, __LINE__, #l); \
-} while(0)
-
-#define MUST_BE_WRITE_LOCKED(l)						     \
-do { if (!((l)->write_locked_map & (1UL << smp_processor_id())))	     \
-	printk("ASSERT %s:%u %s not writelocked\n", __FILE__, __LINE__, #l); \
-} while(0)
-
-#define MUST_BE_READ_WRITE_UNLOCKED(l)					  \
-do { if ((l)->read_locked_map & (1UL << smp_processor_id()))		  \
-	printk("ASSERT %s:%u %s readlocked\n", __FILE__, __LINE__, #l);	  \
- else if ((l)->write_locked_map & (1UL << smp_processor_id()))		  \
-	 printk("ASSERT %s:%u %s writelocked\n", __FILE__, __LINE__, #l); \
-} while(0)
-
-#define LOCK_BH(lk)						\
-do {								\
-	MUST_BE_UNLOCKED(lk);					\
-	spin_lock_bh(&(lk)->l);					\
-	atomic_set(&(lk)->locked_by, smp_processor_id());	\
-} while(0)
-
-#define UNLOCK_BH(lk)				\
-do {						\
-	MUST_BE_LOCKED(lk);			\
-	atomic_set(&(lk)->locked_by, -1);	\
-	spin_unlock_bh(&(lk)->l);		\
-} while(0)
-
-#define READ_LOCK(lk) 						\
-do {								\
-	MUST_BE_READ_WRITE_UNLOCKED(lk);			\
-	read_lock_bh(&(lk)->l);					\
-	set_bit(smp_processor_id(), &(lk)->read_locked_map);	\
-} while(0)
-
-#define WRITE_LOCK(lk)							  \
-do {									  \
-	MUST_BE_READ_WRITE_UNLOCKED(lk);				  \
-	write_lock_bh(&(lk)->l);					  \
-	set_bit(smp_processor_id(), &(lk)->write_locked_map);		  \
-} while(0)
-
-#define READ_UNLOCK(lk)							\
-do {									\
-	if (!((lk)->read_locked_map & (1UL << smp_processor_id())))	\
-		printk("ASSERT: %s:%u %s not readlocked\n", 		\
-		       __FILE__, __LINE__, #lk);			\
-	clear_bit(smp_processor_id(), &(lk)->read_locked_map);		\
-	read_unlock_bh(&(lk)->l);					\
-} while(0)
-
-#define WRITE_UNLOCK(lk)					\
-do {								\
-	MUST_BE_WRITE_LOCKED(lk);				\
-	clear_bit(smp_processor_id(), &(lk)->write_locked_map);	\
-	write_unlock_bh(&(lk)->l);				\
-} while(0)
-
-#else
-#define DECLARE_LOCK(l) spinlock_t l = SPIN_LOCK_UNLOCKED
-#define DECLARE_LOCK_EXTERN(l) extern spinlock_t l
-#define DECLARE_RWLOCK(l) rwlock_t l = RW_LOCK_UNLOCKED
-#define DECLARE_RWLOCK_EXTERN(l) extern rwlock_t l
-
-#define MUST_BE_LOCKED(l)
-#define MUST_BE_UNLOCKED(l)
-#define MUST_BE_READ_LOCKED(l)
-#define MUST_BE_WRITE_LOCKED(l)
-#define MUST_BE_READ_WRITE_UNLOCKED(l)
-
-#define LOCK_BH(l) spin_lock_bh(l)
-#define UNLOCK_BH(l) spin_unlock_bh(l)
-
-#define READ_LOCK(l) read_lock_bh(l)
-#define WRITE_LOCK(l) write_lock_bh(l)
-#define READ_UNLOCK(l) read_unlock_bh(l)
-#define WRITE_UNLOCK(l) write_unlock_bh(l)
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
-#endif /* _LOCKHELP_H */
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 561d4dc7583..3029cad63a0 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -147,7 +147,7 @@ struct netlink_callback
 	int		(*dump)(struct sk_buff * skb, struct netlink_callback *cb);
 	int		(*done)(struct netlink_callback *cb);
 	int		family;
-	long		args[4];
+	long		args[5];
 };
 
 struct netlink_notify
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cc04f5cd228..d7c839a2184 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -193,7 +193,6 @@ struct skb_shared_info {
  *	@nfcache: Cache info
  *	@nfct: Associated connection, if any
  *	@nfctinfo: Relationship of this skb to the connection
- *	@nf_debug: Netfilter debugging
  *	@nf_bridge: Saved data about a bridged frame - see br_netfilter.c
  *      @private: Data which is private to the HIPPI implementation
  *	@tc_index: Traffic control index
@@ -264,9 +263,6 @@ struct sk_buff {
 	__u32			nfcache;
 	__u32			nfctinfo;
 	struct nf_conntrack	*nfct;
-#ifdef CONFIG_NETFILTER_DEBUG
-        unsigned int		nf_debug;
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	struct nf_bridge_info	*nf_bridge;
 #endif
@@ -1219,15 +1215,6 @@ static inline void nf_reset(struct sk_buff *skb)
 {
 	nf_conntrack_put(skb->nfct);
 	skb->nfct = NULL;
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug = 0;
-#endif
-}
-static inline void nf_reset_debug(struct sk_buff *skb)
-{
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug = 0;
-#endif
 }
 
 #ifdef CONFIG_BRIDGE_NETFILTER
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 31990451819..a66e9de16a6 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -167,14 +167,17 @@ extern int			fib6_walk_continue(struct fib6_walker_t *w);
 extern int			fib6_add(struct fib6_node *root,
 					 struct rt6_info *rt,
 					 struct nlmsghdr *nlh,
-					 void *rtattr);
+					 void *rtattr,
+					 struct netlink_skb_parms *req);
 
 extern int			fib6_del(struct rt6_info *rt,
 					 struct nlmsghdr *nlh,
-					 void *rtattr);
+					 void *rtattr,
+					 struct netlink_skb_parms *req);
 
 extern void			inet6_rt_notify(int event, struct rt6_info *rt,
-						struct nlmsghdr *nlh);
+						struct nlmsghdr *nlh,
+						struct netlink_skb_parms *req);
 
 extern void			fib6_run_gc(unsigned long dummy);
 
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index d5d1dd10cdb..f920706d526 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -41,13 +41,16 @@ extern int			ipv6_route_ioctl(unsigned int cmd, void __user *arg);
 
 extern int			ip6_route_add(struct in6_rtmsg *rtmsg,
 					      struct nlmsghdr *,
-					      void *rtattr);
+					      void *rtattr,
+					      struct netlink_skb_parms *req);
 extern int			ip6_ins_rt(struct rt6_info *,
 					   struct nlmsghdr *,
-					   void *rtattr);
+					   void *rtattr,
+					   struct netlink_skb_parms *req);
 extern int			ip6_del_rt(struct rt6_info *,
 					   struct nlmsghdr *,
-					   void *rtattr);
+					   void *rtattr,
+					   struct netlink_skb_parms *req);
 
 extern int			ip6_rt_addr_add(struct in6_addr *addr,
 						struct net_device *dev,
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index ef9f2095f96..069253f830c 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -57,9 +57,6 @@ int br_forward_finish(struct sk_buff *skb)
 static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)
 {
 	skb->dev = to->dev;
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug = 0;
-#endif
 	NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
 			br_forward_finish);
 }
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 8f5f2e73099..9a45e6279c5 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -23,11 +23,7 @@ const unsigned char bridge_ula[6] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
 
 static int br_pass_frame_up_finish(struct sk_buff *skb)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug = 0;
-#endif
 	netif_receive_skb(skb);
-
 	return 0;
 }
 
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index be03d3ad264..03ae4edddac 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -102,10 +102,6 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
 {
 	struct nf_bridge_info *nf_bridge = skb->nf_bridge;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_BR_PRE_ROUTING);
-#endif
-
 	if (nf_bridge->mask & BRNF_PKT_TYPE) {
 		skb->pkt_type = PACKET_OTHERHOST;
 		nf_bridge->mask ^= BRNF_PKT_TYPE;
@@ -182,10 +178,6 @@ static void __br_dnat_complain(void)
  * --Bart, 20021007 (updated) */
 static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug |= (1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_FORWARD);
-#endif
-
 	if (skb->pkt_type == PACKET_OTHERHOST) {
 		skb->pkt_type = PACKET_HOST;
 		skb->nf_bridge->mask |= BRNF_PKT_TYPE;
@@ -207,10 +199,6 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
 	struct iphdr *iph = skb->nh.iph;
 	struct nf_bridge_info *nf_bridge = skb->nf_bridge;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_BR_PRE_ROUTING);
-#endif
-
 	if (nf_bridge->mask & BRNF_PKT_TYPE) {
 		skb->pkt_type = PACKET_OTHERHOST;
 		nf_bridge->mask ^= BRNF_PKT_TYPE;
@@ -382,9 +370,6 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
 	if (hdr->nexthdr == NEXTHDR_HOP && check_hbh_len(skb))
 			goto inhdr_error;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_IP6_PRE_ROUTING);
-#endif
 	if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
 		return NF_DROP;
 	setup_pre_routing(skb);
@@ -468,9 +453,6 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
 			skb->ip_summed = CHECKSUM_NONE;
 	}
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_IP_PRE_ROUTING);
-#endif
 	if ((nf_bridge = nf_bridge_alloc(skb)) == NULL)
 		return NF_DROP;
 	setup_pre_routing(skb);
@@ -517,10 +499,6 @@ static int br_nf_forward_finish(struct sk_buff *skb)
 	struct net_device *in;
 	struct vlan_ethhdr *hdr = vlan_eth_hdr(skb);
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_BR_FORWARD);
-#endif
-
 	if (skb->protocol != __constant_htons(ETH_P_ARP) && !IS_VLAN_ARP) {
 		in = nf_bridge->physindev;
 		if (nf_bridge->mask & BRNF_PKT_TYPE) {
@@ -566,9 +544,6 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff **pskb,
 		(*pskb)->nh.raw += VLAN_HLEN;
 	}
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_BR_FORWARD);
-#endif
 	nf_bridge = skb->nf_bridge;
 	if (skb->pkt_type == PACKET_OTHERHOST) {
 		skb->pkt_type = PACKET_HOST;
@@ -605,10 +580,6 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
 		(*pskb)->nh.raw += VLAN_HLEN;
 	}
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug ^= (1 << NF_BR_FORWARD);
-#endif
-
 	if (skb->nh.arph->ar_pln != 4) {
 		if (IS_VLAN_ARP) {
 			skb_push(*pskb, VLAN_HLEN);
@@ -627,9 +598,6 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
 /* PF_BRIDGE/LOCAL_OUT ***********************************************/
 static int br_nf_local_out_finish(struct sk_buff *skb)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-	skb->nf_debug &= ~(1 << NF_BR_LOCAL_OUT);
-#endif
 	if (skb->protocol == __constant_htons(ETH_P_8021Q)) {
 		skb_push(skb, VLAN_HLEN);
 		skb->nh.raw -= VLAN_HLEN;
@@ -731,10 +699,6 @@ static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff **pskb,
 			       realoutdev, br_nf_local_out_finish,
 			       NF_IP_PRI_BRIDGE_SABOTAGE_FORWARD + 1);
 	} else {
-#ifdef CONFIG_NETFILTER_DEBUG
-		skb->nf_debug ^= (1 << NF_IP_LOCAL_OUT);
-#endif
-
 		NF_HOOK_THRESH(pf, NF_IP_LOCAL_OUT, skb, realindev,
 			       realoutdev, br_nf_local_out_finish,
 			       NF_IP_PRI_BRIDGE_SABOTAGE_LOCAL_OUT + 1);
@@ -779,8 +743,6 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
 		printk(KERN_CRIT "br_netfilter: skb->dst == NULL.");
 		goto print_error;
 	}
-
-	skb->nf_debug ^= (1 << NF_IP_POST_ROUTING);
 #endif
 
 	/* We assume any code from br_dev_queue_push_xmit onwards doesn't care
diff --git a/net/core/netfilter.c b/net/core/netfilter.c
index 22a8f127c4a..076c156d5ed 100644
--- a/net/core/netfilter.c
+++ b/net/core/netfilter.c
@@ -141,136 +141,6 @@ void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
 	up(&nf_sockopt_mutex);
 }
 
-#ifdef CONFIG_NETFILTER_DEBUG
-#include <net/ip.h>
-#include <net/tcp.h>
-#include <linux/netfilter_ipv4.h>
-
-static void debug_print_hooks_ip(unsigned int nf_debug)
-{
-	if (nf_debug & (1 << NF_IP_PRE_ROUTING)) {
-		printk("PRE_ROUTING ");
-		nf_debug ^= (1 << NF_IP_PRE_ROUTING);
-	}
-	if (nf_debug & (1 << NF_IP_LOCAL_IN)) {
-		printk("LOCAL_IN ");
-		nf_debug ^= (1 << NF_IP_LOCAL_IN);
-	}
-	if (nf_debug & (1 << NF_IP_FORWARD)) {
-		printk("FORWARD ");
-		nf_debug ^= (1 << NF_IP_FORWARD);
-	}
-	if (nf_debug & (1 << NF_IP_LOCAL_OUT)) {
-		printk("LOCAL_OUT ");
-		nf_debug ^= (1 << NF_IP_LOCAL_OUT);
-	}
-	if (nf_debug & (1 << NF_IP_POST_ROUTING)) {
-		printk("POST_ROUTING ");
-		nf_debug ^= (1 << NF_IP_POST_ROUTING);
-	}
-	if (nf_debug)
-		printk("Crap bits: 0x%04X", nf_debug);
-	printk("\n");
-}
-
-static void nf_dump_skb(int pf, struct sk_buff *skb)
-{
-	printk("skb: pf=%i %s dev=%s len=%u\n", 
-	       pf,
-	       skb->sk ? "(owned)" : "(unowned)",
-	       skb->dev ? skb->dev->name : "(no dev)",
-	       skb->len);
-	switch (pf) {
-	case PF_INET: {
-		const struct iphdr *ip = skb->nh.iph;
-		__u32 *opt = (__u32 *) (ip + 1);
-		int opti;
-		__u16 src_port = 0, dst_port = 0;
-
-		if (ip->protocol == IPPROTO_TCP
-		    || ip->protocol == IPPROTO_UDP) {
-			struct tcphdr *tcp=(struct tcphdr *)((__u32 *)ip+ip->ihl);
-			src_port = ntohs(tcp->source);
-			dst_port = ntohs(tcp->dest);
-		}
-	
-		printk("PROTO=%d %u.%u.%u.%u:%hu %u.%u.%u.%u:%hu"
-		       " L=%hu S=0x%2.2hX I=%hu F=0x%4.4hX T=%hu",
-		       ip->protocol, NIPQUAD(ip->saddr),
-		       src_port, NIPQUAD(ip->daddr),
-		       dst_port,
-		       ntohs(ip->tot_len), ip->tos, ntohs(ip->id),
-		       ntohs(ip->frag_off), ip->ttl);
-
-		for (opti = 0; opti < (ip->ihl - sizeof(struct iphdr) / 4); opti++)
-			printk(" O=0x%8.8X", *opt++);
-		printk("\n");
-	}
-	}
-}
-
-void nf_debug_ip_local_deliver(struct sk_buff *skb)
-{
-	/* If it's a loopback packet, it must have come through
-	 * NF_IP_LOCAL_OUT, NF_IP_RAW_INPUT, NF_IP_PRE_ROUTING and
-	 * NF_IP_LOCAL_IN.  Otherwise, must have gone through
-	 * NF_IP_RAW_INPUT and NF_IP_PRE_ROUTING.  */
-	if (!skb->dev) {
-		printk("ip_local_deliver: skb->dev is NULL.\n");
-	} else {
-		if (skb->nf_debug != ((1<<NF_IP_PRE_ROUTING)
-				      | (1<<NF_IP_LOCAL_IN))) {
-			printk("ip_local_deliver: bad skb: ");
-			debug_print_hooks_ip(skb->nf_debug);
-			nf_dump_skb(PF_INET, skb);
-		}
-	}
-}
-
-void nf_debug_ip_loopback_xmit(struct sk_buff *newskb)
-{
-	if (newskb->nf_debug != ((1 << NF_IP_LOCAL_OUT)
-				 | (1 << NF_IP_POST_ROUTING))) {
-		printk("ip_dev_loopback_xmit: bad owned skb = %p: ", 
-		       newskb);
-		debug_print_hooks_ip(newskb->nf_debug);
-		nf_dump_skb(PF_INET, newskb);
-	}
-}
-
-void nf_debug_ip_finish_output2(struct sk_buff *skb)
-{
-	/* If it's owned, it must have gone through the
-	 * NF_IP_LOCAL_OUT and NF_IP_POST_ROUTING.
-	 * Otherwise, must have gone through
-	 * NF_IP_PRE_ROUTING, NF_IP_FORWARD and NF_IP_POST_ROUTING.
-	 */
-	if (skb->sk) {
-		if (skb->nf_debug != ((1 << NF_IP_LOCAL_OUT)
-				      | (1 << NF_IP_POST_ROUTING))) {
-			printk("ip_finish_output: bad owned skb = %p: ", skb);
-			debug_print_hooks_ip(skb->nf_debug);
-			nf_dump_skb(PF_INET, skb);
-		}
-	} else {
-		if (skb->nf_debug != ((1 << NF_IP_PRE_ROUTING)
-				      | (1 << NF_IP_FORWARD)
-				      | (1 << NF_IP_POST_ROUTING))) {
-			/* Fragments, entunnelled packets, TCP RSTs
-                           generated by ipt_REJECT will have no
-                           owners, but still may be local */
-			if (skb->nf_debug != ((1 << NF_IP_LOCAL_OUT)
-					      | (1 << NF_IP_POST_ROUTING))){
-				printk("ip_finish_output:"
-				       " bad unowned skb = %p: ",skb);
-				debug_print_hooks_ip(skb->nf_debug);
-				nf_dump_skb(PF_INET, skb);
-			}
-		}
-	}
-}
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
 /* Call get/setsockopt() */
 static int nf_sockopt(struct sock *sk, int pf, int val, 
 		      char __user *opt, int *len, int get)
@@ -488,14 +358,6 @@ int nf_hook_slow(int pf, unsigned int hook, struct sk_buff **pskb,
 	/* We may already have this, but read-locks nest anyway */
 	rcu_read_lock();
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	if (unlikely((*pskb)->nf_debug & (1 << hook))) {
-		printk("nf_hook: hook %i already set.\n", hook);
-		nf_dump_skb(pf, *pskb);
-	}
-	(*pskb)->nf_debug |= (1 << hook);
-#endif
-
 	elem = &nf_hooks[pf][hook];
 next_hook:
 	verdict = nf_iterate(&nf_hooks[pf][hook], pskb, hook, indev,
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f65b3de590a..6d68c03bc05 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -365,9 +365,6 @@ struct sk_buff *skb_clone(struct sk_buff *skb, int gfp_mask)
 	C(nfct);
 	nf_conntrack_get(skb->nfct);
 	C(nfctinfo);
-#ifdef CONFIG_NETFILTER_DEBUG
-	C(nf_debug);
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	C(nf_bridge);
 	nf_bridge_get(skb->nf_bridge);
@@ -432,9 +429,6 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->nfct	= old->nfct;
 	nf_conntrack_get(old->nfct);
 	new->nfctinfo	= old->nfctinfo;
-#ifdef CONFIG_NETFILTER_DEBUG
-	new->nf_debug	= old->nf_debug;
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	new->nf_bridge	= old->nf_bridge;
 	nf_bridge_get(old->nf_bridge);
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 6d3e8b1bd1f..05107e0dc14 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -1,6 +1,32 @@
 #
 # IP configuration
 #
+choice 
+	prompt "Choose IP: FIB lookup""
+	depends on INET
+	default IP_FIB_HASH
+
+config IP_FIB_HASH
+	bool "FIB_HASH"
+	---help---
+	Current FIB is very proven and good enough for most users.
+
+config IP_FIB_TRIE
+	bool "FIB_TRIE"
+	---help---
+	Use new experimental LC-trie as FIB lookup algoritm. 
+        This improves lookup performance
+	
+	LC-trie is described in:
+	
+ 	IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
+ 	IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
+	An experimental study of compression methods for dynamic tries
+ 	Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
+ 	http://www.nada.kth.se/~snilsson/public/papers/dyntrie2/
+       
+endchoice
+
 config IP_MULTICAST
 	bool "IP: multicasting"
 	depends on INET
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 8b379627ebb..65d57d8e1ad 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -7,8 +7,10 @@ obj-y     := utils.o route.o inetpeer.o protocol.o \
 	     ip_output.o ip_sockglue.o \
 	     tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o tcp_minisocks.o \
 	     datagram.o raw.o udp.o arp.o icmp.o devinet.o af_inet.o igmp.o \
-	     sysctl_net_ipv4.o fib_frontend.o fib_semantics.o fib_hash.o
+	     sysctl_net_ipv4.o fib_frontend.o fib_semantics.o
 
+obj-$(CONFIG_IP_FIB_HASH) += fib_hash.o
+obj-$(CONFIG_IP_FIB_TRIE) += fib_trie.o
 obj-$(CONFIG_PROC_FS) += proc.o
 obj-$(CONFIG_IP_MULTIPLE_TABLES) += fib_rules.o
 obj-$(CONFIG_IP_MROUTE) += ipmr.o
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 03942f13394..658e7977924 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1119,6 +1119,10 @@ module_init(inet_init);
 #ifdef CONFIG_PROC_FS
 extern int  fib_proc_init(void);
 extern void fib_proc_exit(void);
+#ifdef CONFIG_IP_FIB_TRIE
+extern int  fib_stat_proc_init(void);
+extern void fib_stat_proc_exit(void);
+#endif
 extern int  ip_misc_proc_init(void);
 extern int  raw_proc_init(void);
 extern void raw_proc_exit(void);
@@ -1139,11 +1143,19 @@ static int __init ipv4_proc_init(void)
 		goto out_udp;
 	if (fib_proc_init())
 		goto out_fib;
+#ifdef CONFIG_IP_FIB_TRIE
+         if (fib_stat_proc_init())
+                 goto out_fib_stat;
+ #endif
 	if (ip_misc_proc_init())
 		goto out_misc;
 out:
 	return rc;
 out_misc:
+#ifdef CONFIG_IP_FIB_TRIE
+ 	fib_stat_proc_exit();
+out_fib_stat:
+#endif
 	fib_proc_exit();
 out_fib:
 	udp4_proc_exit();
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
new file mode 100644
index 00000000000..0671569ee6f
--- /dev/null
+++ b/net/ipv4/fib_trie.c
@@ -0,0 +1,2454 @@
+/*
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version
+ *   2 of the License, or (at your option) any later version.
+ *
+ *   Robert Olsson <robert.olsson@its.uu.se> Uppsala Universitet
+ *     & Swedish University of Agricultural Sciences.
+ *
+ *   Jens Laas <jens.laas@data.slu.se> Swedish University of 
+ *     Agricultural Sciences.
+ * 
+ *   Hans Liss <hans.liss@its.uu.se>  Uppsala Universitet
+ *
+ * This work is based on the LPC-trie which is originally descibed in:
+ * 
+ * An experimental study of compression methods for dynamic tries
+ * Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
+ * http://www.nada.kth.se/~snilsson/public/papers/dyntrie2/
+ *
+ *
+ * IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
+ * IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
+ *
+ * Version:	$Id: fib_trie.c,v 1.3 2005/06/08 14:20:01 robert Exp $
+ *
+ *
+ * Code from fib_hash has been reused which includes the following header:
+ *
+ *
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		IPv4 FIB: lookup engine and maintenance routines.
+ *
+ *
+ * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+
+#define VERSION "0.323"
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/errno.h>
+#include <linux/in.h>
+#include <linux/inet.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <net/ip.h>
+#include <net/protocol.h>
+#include <net/route.h>
+#include <net/tcp.h>
+#include <net/sock.h>
+#include <net/ip_fib.h>
+#include "fib_lookup.h"
+
+#undef CONFIG_IP_FIB_TRIE_STATS
+#define MAX_CHILDS 16384
+
+#define EXTRACT(p, n, str) ((str)<<(p)>>(32-(n)))
+#define KEYLENGTH (8*sizeof(t_key))
+#define MASK_PFX(k, l) (((l)==0)?0:(k >> (KEYLENGTH-l)) << (KEYLENGTH-l))
+#define TKEY_GET_MASK(offset, bits) (((bits)==0)?0:((t_key)(-1) << (KEYLENGTH - bits) >> offset))
+
+static DEFINE_RWLOCK(fib_lock);
+
+typedef unsigned int t_key;
+
+#define T_TNODE 0
+#define T_LEAF  1
+#define NODE_TYPE_MASK	0x1UL
+#define NODE_PARENT(_node) \
+((struct tnode *)((_node)->_parent & ~NODE_TYPE_MASK))
+#define NODE_SET_PARENT(_node, _ptr) \
+((_node)->_parent = (((unsigned long)(_ptr)) | \
+                     ((_node)->_parent & NODE_TYPE_MASK)))
+#define NODE_INIT_PARENT(_node, _type) \
+((_node)->_parent = (_type))
+#define NODE_TYPE(_node) \
+((_node)->_parent & NODE_TYPE_MASK)
+
+#define IS_TNODE(n) (!(n->_parent & T_LEAF))
+#define IS_LEAF(n) (n->_parent & T_LEAF)
+
+struct node {
+        t_key key;
+	unsigned long _parent;
+};
+
+struct leaf {
+        t_key key;
+	unsigned long _parent;
+	struct hlist_head list;
+};
+
+struct leaf_info {
+	struct hlist_node hlist;
+	int plen;
+	struct list_head falh;
+};
+
+struct tnode {
+        t_key key;
+	unsigned long _parent;
+        unsigned short pos:5;        /* 2log(KEYLENGTH) bits needed */
+        unsigned short bits:5;       /* 2log(KEYLENGTH) bits needed */
+        unsigned short full_children;  /* KEYLENGTH bits needed */
+        unsigned short empty_children; /* KEYLENGTH bits needed */
+        struct node *child[0];
+};
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+struct trie_use_stats {
+	unsigned int gets;
+	unsigned int backtrack;
+	unsigned int semantic_match_passed;
+	unsigned int semantic_match_miss;
+	unsigned int null_node_hit;
+};
+#endif
+
+struct trie_stat {
+	unsigned int totdepth;
+	unsigned int maxdepth;
+	unsigned int tnodes;
+	unsigned int leaves;
+	unsigned int nullpointers;
+	unsigned int nodesizes[MAX_CHILDS];
+};    
+
+struct trie {
+        struct node *trie;
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+	struct trie_use_stats stats;
+#endif
+        int size;
+	unsigned int revision;
+};
+
+static int trie_debug = 0;
+
+static int tnode_full(struct tnode *tn, struct node *n);
+static void put_child(struct trie *t, struct tnode *tn, int i, struct node *n);
+static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n, int wasfull);
+static int tnode_child_length(struct tnode *tn);
+static struct node *resize(struct trie *t, struct tnode *tn);
+static struct tnode *inflate(struct trie *t, struct tnode *tn);
+static struct tnode *halve(struct trie *t, struct tnode *tn);
+static void tnode_free(struct tnode *tn);
+static void trie_dump_seq(struct seq_file *seq, struct trie *t);
+extern struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio);
+extern int fib_detect_death(struct fib_info *fi, int order,
+                            struct fib_info **last_resort, int *last_idx, int *dflt);
+
+extern void rtmsg_fib(int event, u32 key, struct fib_alias *fa, int z, int tb_id,
+               struct nlmsghdr *n, struct netlink_skb_parms *req);
+
+static kmem_cache_t *fn_alias_kmem;
+static struct trie *trie_local = NULL, *trie_main = NULL;
+
+static void trie_bug(char *err)
+{
+	printk("Trie Bug: %s\n", err);
+	BUG();
+}
+
+static inline struct node *tnode_get_child(struct tnode *tn, int i) 
+{
+        if (i >=  1<<tn->bits) 
+                trie_bug("tnode_get_child");
+
+        return tn->child[i];
+}
+
+static inline int tnode_child_length(struct tnode *tn)
+{
+        return 1<<tn->bits;
+}
+
+/*
+  _________________________________________________________________
+  | i | i | i | i | i | i | i | N | N | N | S | S | S | S | S | C |
+  ----------------------------------------------------------------
+    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15 
+
+  _________________________________________________________________
+  | C | C | C | u | u | u | u | u | u | u | u | u | u | u | u | u |
+  -----------------------------------------------------------------
+   16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
+
+  tp->pos = 7
+  tp->bits = 3
+  n->pos = 15
+  n->bits=4
+  KEYLENGTH=32
+*/
+
+static inline t_key tkey_extract_bits(t_key a, int offset, int bits)
+{
+        if (offset < KEYLENGTH)
+		return ((t_key)(a << offset)) >> (KEYLENGTH - bits);
+        else
+		return 0;
+}
+
+static inline int tkey_equals(t_key a, t_key b)
+{
+  return a == b;
+}
+
+static inline int tkey_sub_equals(t_key a, int offset, int bits, t_key b)
+{
+     if (bits == 0 || offset >= KEYLENGTH)
+            return 1;
+        bits = bits > KEYLENGTH ? KEYLENGTH : bits;
+        return ((a ^ b) << offset) >> (KEYLENGTH - bits) == 0;
+}	
+
+static inline int tkey_mismatch(t_key a, int offset, t_key b)
+{
+	t_key diff = a ^ b;
+	int i = offset;
+
+	if(!diff) 
+	  return 0;
+	while((diff << i) >> (KEYLENGTH-1) == 0)
+		i++;
+	return i;
+}
+
+/* Candiate for fib_semantics */
+
+static void fn_free_alias(struct fib_alias *fa)
+{
+	fib_release_info(fa->fa_info);
+	kmem_cache_free(fn_alias_kmem, fa);
+}
+
+/*
+  To understand this stuff, an understanding of keys and all their bits is 
+  necessary. Every node in the trie has a key associated with it, but not 
+  all of the bits in that key are significant.
+
+  Consider a node 'n' and its parent 'tp'.
+
+  If n is a leaf, every bit in its key is significant. Its presence is 
+  necessitaded by path compression, since during a tree traversal (when 
+  searching for a leaf - unless we are doing an insertion) we will completely 
+  ignore all skipped bits we encounter. Thus we need to verify, at the end of 
+  a potentially successful search, that we have indeed been walking the 
+  correct key path.
+
+  Note that we can never "miss" the correct key in the tree if present by 
+  following the wrong path. Path compression ensures that segments of the key 
+  that are the same for all keys with a given prefix are skipped, but the 
+  skipped part *is* identical for each node in the subtrie below the skipped 
+  bit! trie_insert() in this implementation takes care of that - note the 
+  call to tkey_sub_equals() in trie_insert().
+
+  if n is an internal node - a 'tnode' here, the various parts of its key 
+  have many different meanings.
+
+  Example:  
+  _________________________________________________________________
+  | i | i | i | i | i | i | i | N | N | N | S | S | S | S | S | C |
+  -----------------------------------------------------------------
+    0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15 
+
+  _________________________________________________________________
+  | C | C | C | u | u | u | u | u | u | u | u | u | u | u | u | u |
+  -----------------------------------------------------------------
+   16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31
+
+  tp->pos = 7
+  tp->bits = 3
+  n->pos = 15
+  n->bits=4
+
+  First, let's just ignore the bits that come before the parent tp, that is 
+  the bits from 0 to (tp->pos-1). They are *known* but at this point we do 
+  not use them for anything.
+
+  The bits from (tp->pos) to (tp->pos + tp->bits - 1) - "N", above - are the
+  index into the parent's child array. That is, they will be used to find 
+  'n' among tp's children.
+
+  The bits from (tp->pos + tp->bits) to (n->pos - 1) - "S" - are skipped bits
+  for the node n.
+
+  All the bits we have seen so far are significant to the node n. The rest 
+  of the bits are really not needed or indeed known in n->key.
+
+  The bits from (n->pos) to (n->pos + n->bits - 1) - "C" - are the index into 
+  n's child array, and will of course be different for each child.
+  
+  The rest of the bits, from (n->pos + n->bits) onward, are completely unknown
+  at this point.
+
+*/
+
+static void check_tnode(struct tnode *tn)
+{
+	if(tn && tn->pos+tn->bits > 32) {
+		printk("TNODE ERROR tn=%p, pos=%d, bits=%d\n", tn, tn->pos, tn->bits);
+	}
+}
+
+static int halve_threshold = 25;
+static int inflate_threshold = 50;
+
+static struct leaf *leaf_new(void)
+{
+	struct leaf *l = kmalloc(sizeof(struct leaf),  GFP_KERNEL);
+	if(l) {
+		NODE_INIT_PARENT(l, T_LEAF);
+		INIT_HLIST_HEAD(&l->list);
+	}
+	return l;
+}
+
+static struct leaf_info *leaf_info_new(int plen)
+{
+	struct leaf_info *li = kmalloc(sizeof(struct leaf_info),  GFP_KERNEL);
+	li->plen = plen;
+	INIT_LIST_HEAD(&li->falh);
+	return li;
+}
+
+static inline void free_leaf(struct leaf *l)
+{
+	kfree(l);
+}
+
+static inline void free_leaf_info(struct leaf_info *li)
+{
+	kfree(li);
+}
+
+static struct tnode* tnode_new(t_key key, int pos, int bits)
+{
+	int nchildren = 1<<bits;
+	int sz = sizeof(struct tnode) + nchildren * sizeof(struct node *);
+	struct tnode *tn = kmalloc(sz,  GFP_KERNEL);
+
+	if(tn)  {
+		memset(tn, 0, sz);
+		NODE_INIT_PARENT(tn, T_TNODE);
+		tn->pos = pos;
+		tn->bits = bits;
+		tn->key = key;
+		tn->full_children = 0;
+		tn->empty_children = 1<<bits;
+	}
+	if(trie_debug > 0) 
+		printk("AT %p s=%u %u\n", tn, (unsigned int) sizeof(struct tnode),
+		       (unsigned int) (sizeof(struct node) * 1<<bits));
+	return tn;
+}
+
+static void tnode_free(struct tnode *tn)
+{
+	if(!tn) {
+		trie_bug("tnode_free\n");
+	}
+	if(IS_LEAF(tn)) {
+		free_leaf((struct leaf *)tn);
+		if(trie_debug > 0 ) 
+			printk("FL %p \n", tn);
+	}
+	else if(IS_TNODE(tn)) { 
+		kfree(tn);
+		if(trie_debug > 0 ) 
+			printk("FT %p \n", tn);
+	}
+	else {
+		trie_bug("tnode_free\n");
+	}
+}
+
+/*
+ * Check whether a tnode 'n' is "full", i.e. it is an internal node
+ * and no bits are skipped. See discussion in dyntree paper p. 6
+ */
+
+static inline int tnode_full(struct tnode *tn, struct node *n)
+{
+	if(n == NULL || IS_LEAF(n))
+		return 0;
+
+	return ((struct tnode *) n)->pos == tn->pos + tn->bits;
+}
+
+static inline void put_child(struct trie *t, struct tnode *tn, int i, struct node *n) 
+{
+	tnode_put_child_reorg(tn, i, n, -1);
+}
+
+ /* 
+  * Add a child at position i overwriting the old value.
+  * Update the value of full_children and empty_children.
+  */
+
+static void tnode_put_child_reorg(struct tnode *tn, int i, struct node *n, int wasfull) 
+{
+	struct node *chi;
+	int isfull;
+
+	if(i >=  1<<tn->bits) {
+		printk("bits=%d, i=%d\n", tn->bits, i);
+		trie_bug("tnode_put_child_reorg bits");
+	}
+	write_lock_bh(&fib_lock);
+	chi = tn->child[i];	
+
+	/* update emptyChildren */
+	if (n == NULL && chi != NULL)
+		tn->empty_children++;
+	else if (n != NULL && chi == NULL)
+		tn->empty_children--;
+  
+	/* update fullChildren */
+        if (wasfull == -1)
+		wasfull = tnode_full(tn, chi);
+
+	isfull = tnode_full(tn, n);
+	if (wasfull && !isfull) 
+		tn->full_children--;
+	
+	else if (!wasfull && isfull) 
+		tn->full_children++;
+	if(n) 
+		NODE_SET_PARENT(n, tn);	
+
+	tn->child[i] = n;
+	write_unlock_bh(&fib_lock);
+}
+
+static struct node *resize(struct trie *t, struct tnode *tn) 
+{
+	int i;
+
+ 	if (!tn)
+		return NULL;
+
+	if(trie_debug) 
+		printk("In tnode_resize %p inflate_threshold=%d threshold=%d\n", 
+		      tn, inflate_threshold, halve_threshold);
+
+	/* No children */
+	if (tn->empty_children == tnode_child_length(tn)) {
+		tnode_free(tn);
+		return NULL;
+	}
+	/* One child */
+	if (tn->empty_children == tnode_child_length(tn) - 1)
+		for (i = 0; i < tnode_child_length(tn); i++) {
+
+			write_lock_bh(&fib_lock);
+			if (tn->child[i] != NULL) {
+
+				/* compress one level */
+				struct node *n = tn->child[i];
+				if(n)
+					NODE_INIT_PARENT(n, NODE_TYPE(n));
+
+				write_unlock_bh(&fib_lock);
+				tnode_free(tn);
+				return n;
+			}
+			write_unlock_bh(&fib_lock);
+		}
+	/* 
+	 * Double as long as the resulting node has a number of
+	 * nonempty nodes that are above the threshold.
+	 */
+
+	/*
+	 * From "Implementing a dynamic compressed trie" by Stefan Nilsson of 
+	 * the Helsinki University of Technology and Matti Tikkanen of Nokia 
+	 * Telecommunications, page 6:
+	 * "A node is doubled if the ratio of non-empty children to all 
+	 * children in the *doubled* node is at least 'high'."
+	 *
+	 * 'high' in this instance is the variable 'inflate_threshold'. It 
+	 * is expressed as a percentage, so we multiply it with 
+	 * tnode_child_length() and instead of multiplying by 2 (since the 
+	 * child array will be doubled by inflate()) and multiplying 
+	 * the left-hand side by 100 (to handle the percentage thing) we 
+	 * multiply the left-hand side by 50.
+	 * 
+	 * The left-hand side may look a bit weird: tnode_child_length(tn) 
+	 * - tn->empty_children is of course the number of non-null children 
+	 * in the current node. tn->full_children is the number of "full" 
+	 * children, that is non-null tnodes with a skip value of 0.
+	 * All of those will be doubled in the resulting inflated tnode, so 
+	 * we just count them one extra time here.
+	 * 
+	 * A clearer way to write this would be:
+	 * 
+	 * to_be_doubled = tn->full_children;
+	 * not_to_be_doubled = tnode_child_length(tn) - tn->empty_children - 
+	 *     tn->full_children;
+	 *
+	 * new_child_length = tnode_child_length(tn) * 2;
+	 *
+	 * new_fill_factor = 100 * (not_to_be_doubled + 2*to_be_doubled) / 
+	 *      new_child_length;
+	 * if (new_fill_factor >= inflate_threshold)
+	 * 
+	 * ...and so on, tho it would mess up the while() loop.
+	 * 
+	 * anyway,
+	 * 100 * (not_to_be_doubled + 2*to_be_doubled) / new_child_length >=
+	 *      inflate_threshold
+	 * 
+	 * avoid a division:
+	 * 100 * (not_to_be_doubled + 2*to_be_doubled) >=
+	 *      inflate_threshold * new_child_length
+	 * 
+	 * expand not_to_be_doubled and to_be_doubled, and shorten:
+	 * 100 * (tnode_child_length(tn) - tn->empty_children + 
+	 *    tn->full_children ) >= inflate_threshold * new_child_length
+	 * 
+	 * expand new_child_length:
+	 * 100 * (tnode_child_length(tn) - tn->empty_children + 
+	 *    tn->full_children ) >=
+	 *      inflate_threshold * tnode_child_length(tn) * 2
+	 * 
+	 * shorten again:
+	 * 50 * (tn->full_children + tnode_child_length(tn) - 
+	 *    tn->empty_children ) >= inflate_threshold * 
+	 *    tnode_child_length(tn)
+	 * 
+	 */
+
+	check_tnode(tn);
+
+	while ((tn->full_children > 0 &&
+	       50 * (tn->full_children + tnode_child_length(tn) - tn->empty_children) >=
+				inflate_threshold * tnode_child_length(tn))) {
+
+		tn = inflate(t, tn);
+	}
+
+	check_tnode(tn);
+
+	/*
+	 * Halve as long as the number of empty children in this
+	 * node is above threshold.
+	 */
+	while (tn->bits > 1 &&
+	       100 * (tnode_child_length(tn) - tn->empty_children) <
+	       halve_threshold * tnode_child_length(tn))
+
+		tn = halve(t, tn);
+  
+	/* Only one child remains */
+
+	if (tn->empty_children == tnode_child_length(tn) - 1)
+		for (i = 0; i < tnode_child_length(tn); i++) {
+			
+			write_lock_bh(&fib_lock);
+			if (tn->child[i] != NULL) {
+				/* compress one level */
+				struct node *n = tn->child[i];
+
+				if(n)
+					NODE_INIT_PARENT(n, NODE_TYPE(n));
+
+				write_unlock_bh(&fib_lock);
+				tnode_free(tn);
+				return n;
+			}
+			write_unlock_bh(&fib_lock);
+		}
+
+	return (struct node *) tn;
+}
+
+static struct tnode *inflate(struct trie *t, struct tnode *tn)
+{
+	struct tnode *inode;
+	struct tnode *oldtnode = tn;
+	int olen = tnode_child_length(tn);
+	int i;
+
+  	if(trie_debug) 
+		printk("In inflate\n");
+
+	tn = tnode_new(oldtnode->key, oldtnode->pos, oldtnode->bits + 1);
+
+	if (!tn)
+		trie_bug("tnode_new failed");
+
+	for(i = 0; i < olen; i++) {
+		struct node *node = tnode_get_child(oldtnode, i);
+      
+		/* An empty child */
+		if (node == NULL)
+			continue;
+
+		/* A leaf or an internal node with skipped bits */
+
+		if(IS_LEAF(node) || ((struct tnode *) node)->pos >
+		   tn->pos + tn->bits - 1) {
+			if(tkey_extract_bits(node->key, tn->pos + tn->bits - 1,
+					     1) == 0)
+				put_child(t, tn, 2*i, node);
+			else
+				put_child(t, tn, 2*i+1, node);
+			continue;
+		}
+
+		/* An internal node with two children */
+		inode = (struct tnode *) node;
+
+		if (inode->bits == 1) {
+			put_child(t, tn, 2*i, inode->child[0]);
+			put_child(t, tn, 2*i+1, inode->child[1]);
+
+			tnode_free(inode);
+		}
+
+			/* An internal node with more than two children */
+		else {
+			struct tnode *left, *right;
+			int size, j;
+
+			/* We will replace this node 'inode' with two new 
+			 * ones, 'left' and 'right', each with half of the 
+			 * original children. The two new nodes will have 
+			 * a position one bit further down the key and this 
+			 * means that the "significant" part of their keys 
+			 * (see the discussion near the top of this file) 
+			 * will differ by one bit, which will be "0" in 
+			 * left's key and "1" in right's key. Since we are 
+			 * moving the key position by one step, the bit that 
+			 * we are moving away from - the bit at position 
+			 * (inode->pos) - is the one that will differ between 
+			 * left and right. So... we synthesize that bit in the
+			 * two  new keys.
+			 * The mask 'm' below will be a single "one" bit at 
+			 * the position (inode->pos)
+			 */
+
+			t_key m = TKEY_GET_MASK(inode->pos, 1);
+ 
+			/* Use the old key, but set the new significant 
+			 *   bit to zero. 
+			 */
+			left = tnode_new(inode->key&(~m), inode->pos + 1,
+					 inode->bits - 1);
+
+			if(!left) 
+				trie_bug("tnode_new failed");
+			
+			
+			/* Use the old key, but set the new significant 
+			 * bit to one. 
+			 */
+			right = tnode_new(inode->key|m, inode->pos + 1,
+					  inode->bits - 1);
+
+			if(!right) 
+				trie_bug("tnode_new failed");
+			
+			size = tnode_child_length(left);
+			for(j = 0; j < size; j++) {
+				put_child(t, left, j, inode->child[j]);
+				put_child(t, right, j, inode->child[j + size]);
+			}
+			put_child(t, tn, 2*i, resize(t, left));
+			put_child(t, tn, 2*i+1, resize(t, right));
+
+			tnode_free(inode);
+		}
+	}
+	tnode_free(oldtnode);
+	return tn;
+}
+
+static struct tnode *halve(struct trie *t, struct tnode *tn)
+{
+	struct tnode *oldtnode = tn;
+	struct node *left, *right;
+	int i;
+	int olen = tnode_child_length(tn);
+
+	if(trie_debug) printk("In halve\n");
+  
+	tn=tnode_new(oldtnode->key, oldtnode->pos, oldtnode->bits - 1);
+
+	if(!tn) 
+		trie_bug("tnode_new failed");
+
+	for(i = 0; i < olen; i += 2) {
+		left = tnode_get_child(oldtnode, i);
+		right = tnode_get_child(oldtnode, i+1);
+    
+		/* At least one of the children is empty */
+		if (left == NULL) {
+			if (right == NULL)    /* Both are empty */
+				continue;
+			put_child(t, tn, i/2, right);
+		} else if (right == NULL)
+			put_child(t, tn, i/2, left);
+     
+		/* Two nonempty children */
+		else {
+			struct tnode *newBinNode =
+				tnode_new(left->key, tn->pos + tn->bits, 1);
+
+			if(!newBinNode) 
+				trie_bug("tnode_new failed");
+
+			put_child(t, newBinNode, 0, left);
+			put_child(t, newBinNode, 1, right);
+			put_child(t, tn, i/2, resize(t, newBinNode));
+		}
+	}
+	tnode_free(oldtnode);
+	return tn;
+}
+
+static void *trie_init(struct trie *t)
+{
+	if(t) {
+		t->size = 0;
+		t->trie = NULL;
+		t->revision = 0;
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+       		memset(&t->stats, 0, sizeof(struct trie_use_stats));
+#endif
+	}
+	return t;
+}
+
+static struct leaf_info *find_leaf_info(struct hlist_head *head, int plen)
+{
+	struct hlist_node *node;
+	struct leaf_info *li;
+
+	hlist_for_each_entry(li, node, head, hlist) {
+		  
+		if ( li->plen == plen )
+			return li;
+	}
+	return NULL;
+}
+
+static inline struct list_head * get_fa_head(struct leaf *l, int plen)
+{
+	struct list_head *fa_head=NULL;
+	struct leaf_info *li = find_leaf_info(&l->list, plen);
+	
+	if(li) 
+		fa_head = &li->falh;
+	
+	return fa_head;
+}
+
+static void insert_leaf_info(struct hlist_head *head, struct leaf_info *new)
+{
+	struct leaf_info *li=NULL, *last=NULL;
+	struct hlist_node *node, *tmp;
+
+	write_lock_bh(&fib_lock);
+	
+	if(hlist_empty(head))
+		hlist_add_head(&new->hlist, head);
+	else {
+		hlist_for_each_entry_safe(li, node, tmp, head, hlist) {
+			
+			if (new->plen > li->plen) 
+				break;
+			
+			last = li;
+		}
+		if(last) 
+			hlist_add_after(&last->hlist, &new->hlist);
+		else 
+			hlist_add_before(&new->hlist, &li->hlist);
+	}
+	write_unlock_bh(&fib_lock);
+}
+
+static struct leaf *
+fib_find_node(struct trie *t, u32 key)
+{
+	int pos;
+	struct tnode *tn;
+	struct node *n;
+
+	pos = 0;
+	n=t->trie;
+
+	while (n != NULL &&  NODE_TYPE(n) == T_TNODE) {
+		tn = (struct tnode *) n;
+			
+		check_tnode(tn);
+			
+		if(tkey_sub_equals(tn->key, pos, tn->pos-pos, key)) {
+			pos=tn->pos + tn->bits;
+			n = tnode_get_child(tn, tkey_extract_bits(key, tn->pos, tn->bits));
+		}
+		else
+			break;
+	}
+	/* Case we have found a leaf. Compare prefixes */
+
+	if (n != NULL && IS_LEAF(n) && tkey_equals(key, n->key)) {
+		struct leaf *l = (struct leaf *) n;
+		return l;
+	}
+	return NULL;
+}
+
+static struct node *trie_rebalance(struct trie *t, struct tnode *tn)
+{
+	int i = 0;
+	int wasfull;
+	t_key cindex, key;
+	struct tnode *tp = NULL;
+
+	if(!tn) 
+		BUG();
+	
+	key = tn->key;
+	i = 0;
+
+	while (tn != NULL && NODE_PARENT(tn) != NULL) {
+
+		if( i > 10 ) {
+			printk("Rebalance tn=%p \n", tn);
+			if(tn) 		printk("tn->parent=%p \n", NODE_PARENT(tn));
+			
+			printk("Rebalance tp=%p \n", tp);
+			if(tp) 		printk("tp->parent=%p \n", NODE_PARENT(tp));
+		}
+
+		if( i > 12 ) BUG();
+		i++;
+
+		tp = NODE_PARENT(tn);
+		cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+		wasfull = tnode_full(tp, tnode_get_child(tp, cindex));
+		tn = (struct tnode *) resize (t, (struct tnode *)tn);
+		tnode_put_child_reorg((struct tnode *)tp, cindex,(struct node*)tn, wasfull);
+		
+		if(!NODE_PARENT(tn))
+			break;
+
+		tn = NODE_PARENT(tn);
+	}
+	/* Handle last (top) tnode */
+	if (IS_TNODE(tn)) 
+		tn = (struct tnode*) resize(t, (struct tnode *)tn);
+
+	return (struct node*) tn;
+}
+
+static struct list_head *
+fib_insert_node(struct trie *t, u32 key, int plen)
+{
+	int pos, newpos;
+	struct tnode *tp = NULL, *tn = NULL;
+	struct node *n;
+	struct leaf *l;
+	int missbit;
+	struct list_head *fa_head=NULL;
+	struct leaf_info *li;
+	t_key cindex;
+
+	pos = 0;
+	n=t->trie;
+
+	/* If we point to NULL, stop. Either the tree is empty and we should 
+	 * just put a new leaf in if, or we have reached an empty child slot, 
+	 * and we should just put our new leaf in that.
+	 * If we point to a T_TNODE, check if it matches our key. Note that 
+	 * a T_TNODE might be skipping any number of bits - its 'pos' need 
+	 * not be the parent's 'pos'+'bits'!
+	 *
+	 * If it does match the current key, get pos/bits from it, extract 
+	 * the index from our key, push the T_TNODE and walk the tree.
+	 *
+	 * If it doesn't, we have to replace it with a new T_TNODE.
+	 *
+	 * If we point to a T_LEAF, it might or might not have the same key 
+	 * as we do. If it does, just change the value, update the T_LEAF's 
+	 * value, and return it. 
+	 * If it doesn't, we need to replace it with a T_TNODE.
+	 */
+
+	while (n != NULL &&  NODE_TYPE(n) == T_TNODE) {
+		tn = (struct tnode *) n;
+			
+		check_tnode(tn);
+		
+		if(tkey_sub_equals(tn->key, pos, tn->pos-pos, key)) {
+			tp = tn;
+			pos=tn->pos + tn->bits;
+			n = tnode_get_child(tn, tkey_extract_bits(key, tn->pos, tn->bits));
+
+			if(n && NODE_PARENT(n) != tn) {
+				printk("BUG tn=%p, n->parent=%p\n", tn, NODE_PARENT(n));
+				BUG();
+			}
+		}
+		else
+			break;
+	}
+
+	/*
+	 * n  ----> NULL, LEAF or TNODE
+	 *
+	 * tp is n's (parent) ----> NULL or TNODE  
+	 */
+
+	if(tp && IS_LEAF(tp))
+		BUG();
+
+	t->revision++;
+
+	/* Case 1: n is a leaf. Compare prefixes */
+
+	if (n != NULL && IS_LEAF(n) && tkey_equals(key, n->key)) { 
+		struct leaf *l = ( struct leaf *)  n;
+		
+		li = leaf_info_new(plen);
+		
+		if(! li) 
+			BUG();
+
+		fa_head = &li->falh;
+		insert_leaf_info(&l->list, li);
+		goto done;
+	}
+	t->size++;
+	l = leaf_new();
+
+	if(! l) 
+		BUG();
+
+	l->key = key;
+	li = leaf_info_new(plen);
+
+	if(! li) 
+		BUG();
+
+	fa_head = &li->falh;
+	insert_leaf_info(&l->list, li);
+
+	/* Case 2: n is NULL, and will just insert a new leaf */
+	if (t->trie && n == NULL) {
+
+		NODE_SET_PARENT(l, tp);
+		
+		if (!tp) 
+			BUG();
+
+		else {
+			cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+			put_child(t, (struct tnode *)tp, cindex, (struct node *)l);
+		}
+	}
+	/* Case 3: n is a LEAF or a TNODE and the key doesn't match. */
+	else {
+		/* 
+		 *  Add a new tnode here 
+		 *  first tnode need some special handling
+		 */
+
+		if (tp)
+			pos=tp->pos+tp->bits;
+		else
+			pos=0;
+		if(n) {
+			newpos = tkey_mismatch(key, pos, n->key);
+			tn = tnode_new(n->key, newpos, 1);
+		}
+		else {
+			newpos = 0;
+			tn = tnode_new(key, newpos, 1); /* First tnode */ 
+		}
+		if(!tn) 
+			trie_bug("tnode_pfx_new failed");
+
+		NODE_SET_PARENT(tn, tp);
+
+		missbit=tkey_extract_bits(key, newpos, 1);
+		put_child(t, tn, missbit, (struct node *)l);
+		put_child(t, tn, 1-missbit, n);
+
+		if(tp) {
+			cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+			put_child(t, (struct tnode *)tp, cindex, (struct node *)tn);
+		}
+		else { 
+			t->trie = (struct node*) tn; /* First tnode */
+			tp = tn;
+		}
+	}
+	if(tp && tp->pos+tp->bits > 32) {
+		printk("ERROR tp=%p pos=%d, bits=%d, key=%0x plen=%d\n", 
+		       tp, tp->pos, tp->bits, key, plen);
+	}
+	/* Rebalance the trie */
+	t->trie = trie_rebalance(t, tp);
+done:;
+	return fa_head;
+}
+
+static int
+fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
+	       struct nlmsghdr *nlhdr, struct netlink_skb_parms *req)
+{
+	struct trie *t = (struct trie *) tb->tb_data;
+	struct fib_alias *fa, *new_fa;
+	struct list_head *fa_head=NULL;
+	struct fib_info *fi;
+	int plen = r->rtm_dst_len;
+	int type = r->rtm_type;
+	u8 tos = r->rtm_tos;
+	u32 key, mask;
+	int err;
+	struct leaf *l;
+
+	if (plen > 32)
+		return -EINVAL;
+
+	key = 0;
+	if (rta->rta_dst) 
+		memcpy(&key, rta->rta_dst, 4);
+
+	key = ntohl(key);
+
+	if(trie_debug)
+		printk("Insert table=%d %08x/%d\n", tb->tb_id, key, plen);
+
+	mask =  ntohl( inet_make_mask(plen) );
+
+	if(key & ~mask)
+		return -EINVAL;
+
+	key = key & mask;
+
+	if  ((fi = fib_create_info(r, rta, nlhdr, &err)) == NULL)
+		goto err;
+
+	l = fib_find_node(t, key);
+	fa = NULL;	
+
+	if(l) {
+		fa_head = get_fa_head(l, plen);
+		fa = fib_find_alias(fa_head, tos, fi->fib_priority);
+	}
+
+	/* Now fa, if non-NULL, points to the first fib alias
+	 * with the same keys [prefix,tos,priority], if such key already
+	 * exists or to the node before which we will insert new one.
+	 *
+	 * If fa is NULL, we will need to allocate a new one and
+	 * insert to the head of f.
+	 *
+	 * If f is NULL, no fib node matched the destination key
+	 * and we need to allocate a new one of those as well.
+	 */
+
+	if (fa &&
+	    fa->fa_info->fib_priority == fi->fib_priority) {
+		struct fib_alias *fa_orig;
+
+		err = -EEXIST;
+		if (nlhdr->nlmsg_flags & NLM_F_EXCL)
+			goto out;
+
+		if (nlhdr->nlmsg_flags & NLM_F_REPLACE) {
+			struct fib_info *fi_drop;
+			u8 state;
+
+			write_lock_bh(&fib_lock);
+
+			fi_drop = fa->fa_info;
+			fa->fa_info = fi;
+			fa->fa_type = type;
+			fa->fa_scope = r->rtm_scope;
+			state = fa->fa_state;
+			fa->fa_state &= ~FA_S_ACCESSED;
+
+			write_unlock_bh(&fib_lock);
+
+			fib_release_info(fi_drop);
+			if (state & FA_S_ACCESSED)
+			  rt_cache_flush(-1);
+
+			    goto succeeded;
+		}
+		/* Error if we find a perfect match which
+		 * uses the same scope, type, and nexthop
+		 * information.
+		 */
+		fa_orig = fa;
+		list_for_each_entry(fa, fa_orig->fa_list.prev, fa_list) {
+			if (fa->fa_tos != tos)
+				break;
+			if (fa->fa_info->fib_priority != fi->fib_priority)
+				break;
+			if (fa->fa_type == type &&
+			    fa->fa_scope == r->rtm_scope &&
+			    fa->fa_info == fi) {
+				goto out;
+			}
+		}
+		if (!(nlhdr->nlmsg_flags & NLM_F_APPEND))
+			fa = fa_orig;
+	}
+	err = -ENOENT;
+	if (!(nlhdr->nlmsg_flags&NLM_F_CREATE))
+		goto out;
+
+	err = -ENOBUFS;
+	new_fa = kmem_cache_alloc(fn_alias_kmem, SLAB_KERNEL);
+	if (new_fa == NULL)
+		goto out;
+
+	new_fa->fa_info = fi;
+	new_fa->fa_tos = tos;
+	new_fa->fa_type = type;
+	new_fa->fa_scope = r->rtm_scope;
+	new_fa->fa_state = 0;
+#if 0
+	new_fa->dst  = NULL;
+#endif
+	/*
+	 * Insert new entry to the list.
+	 */
+
+	if(!fa_head)
+		fa_head = fib_insert_node(t, key, plen);
+
+	write_lock_bh(&fib_lock);
+
+	list_add_tail(&new_fa->fa_list,
+		 (fa ? &fa->fa_list : fa_head));
+
+	write_unlock_bh(&fib_lock);
+
+	rt_cache_flush(-1);
+	rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id, nlhdr, req);
+succeeded:
+	return 0;
+out:
+	fib_release_info(fi);
+err:;	
+	return err;
+}
+
+static inline int check_leaf(struct trie *t, struct leaf *l,  t_key key, int *plen, const struct flowi *flp, 
+			     struct fib_result *res, int *err)
+{
+	int i;
+	t_key mask;
+	struct leaf_info *li;
+	struct hlist_head *hhead = &l->list;
+	struct hlist_node *node;
+	
+	hlist_for_each_entry(li, node, hhead, hlist) {
+
+		i = li->plen;
+		mask = ntohl(inet_make_mask(i));
+		if (l->key != (key & mask)) 
+			continue;
+
+		if (((*err) = fib_semantic_match(&li->falh, flp, res, l->key, mask, i)) == 0) {
+			*plen = i;
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+			t->stats.semantic_match_passed++;
+#endif
+			return 1;
+		}
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+		t->stats.semantic_match_miss++;
+#endif
+	}
+	return 0;
+}
+
+static int
+fn_trie_lookup(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
+{
+	struct trie *t = (struct trie *) tb->tb_data;
+	int plen, ret = 0;
+	struct node *n;
+	struct tnode *pn;
+	int pos, bits;
+	t_key key=ntohl(flp->fl4_dst);
+	int chopped_off;
+	t_key cindex = 0;
+	int current_prefix_length = KEYLENGTH;
+	n = t->trie;
+
+	read_lock(&fib_lock);
+	if(!n)
+		goto failed;
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+	t->stats.gets++;
+#endif
+
+	/* Just a leaf? */
+	if (IS_LEAF(n)) {
+		if( check_leaf(t, (struct leaf *)n, key, &plen, flp, res, &ret) )
+			goto found;
+		goto failed;
+	}
+	pn = (struct tnode *) n;
+	chopped_off = 0;
+	
+        while (pn) {
+
+		pos = pn->pos;
+		bits = pn->bits;
+
+		if(!chopped_off) 
+			cindex = tkey_extract_bits(MASK_PFX(key, current_prefix_length), pos, bits);
+
+		n = tnode_get_child(pn, cindex);
+
+		if (n == NULL) {
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+			t->stats.null_node_hit++;
+#endif
+			goto backtrace;
+		}
+
+		if (IS_TNODE(n)) {
+#define HL_OPTIMIZE
+#ifdef HL_OPTIMIZE
+			struct tnode *cn = (struct tnode *)n;
+			t_key node_prefix, key_prefix, pref_mismatch;
+			int mp;
+
+			/*
+			 * It's a tnode, and we can do some extra checks here if we 
+			 * like, to avoid descending into a dead-end branch.
+			 * This tnode is in the parent's child array at index 
+			 * key[p_pos..p_pos+p_bits] but potentially with some bits 
+			 * chopped off, so in reality the index may be just a 
+			 * subprefix, padded with zero at the end.
+			 * We can also take a look at any skipped bits in this 
+			 * tnode - everything up to p_pos is supposed to be ok, 
+			 * and the non-chopped bits of the index (se previous
+			 * paragraph) are also guaranteed ok, but the rest is 
+			 * considered unknown.
+			 *
+			 * The skipped bits are key[pos+bits..cn->pos].
+			 */
+			
+			/* If current_prefix_length < pos+bits, we are already doing 
+			 * actual prefix  matching, which means everything from 
+			 * pos+(bits-chopped_off) onward must be zero along some 
+			 * branch of this subtree - otherwise there is *no* valid 
+			 * prefix present. Here we can only check the skipped
+			 * bits. Remember, since we have already indexed into the 
+			 * parent's child array, we know that the bits we chopped of 
+			 * *are* zero.
+			 */
+
+			/* NOTA BENE: CHECKING ONLY SKIPPED BITS FOR THE NEW NODE HERE */
+			
+			if (current_prefix_length < pos+bits) {
+				if (tkey_extract_bits(cn->key, current_prefix_length,
+						      cn->pos - current_prefix_length) != 0 ||
+				    !(cn->child[0]))
+					goto backtrace;
+			}
+
+			/*
+			 * If chopped_off=0, the index is fully validated and we 
+			 * only need to look at the skipped bits for this, the new, 
+			 * tnode. What we actually want to do is to find out if
+			 * these skipped bits match our key perfectly, or if we will
+			 * have to count on finding a matching prefix further down, 
+			 * because if we do, we would like to have some way of 
+			 * verifying the existence of such a prefix at this point. 
+			 */
+
+			/* The only thing we can do at this point is to verify that
+			 * any such matching prefix can indeed be a prefix to our
+			 * key, and if the bits in the node we are inspecting that
+			 * do not match our key are not ZERO, this cannot be true.
+			 * Thus, find out where there is a mismatch (before cn->pos)
+			 * and verify that all the mismatching bits are zero in the
+			 * new tnode's key.
+			 */
+
+			/* Note: We aren't very concerned about the piece of the key 
+			 * that precede pn->pos+pn->bits, since these have already been 
+			 * checked. The bits after cn->pos aren't checked since these are 
+			 * by definition "unknown" at this point. Thus, what we want to 
+			 * see is if we are about to enter the "prefix matching" state, 
+			 * and in that case verify that the skipped bits that will prevail 
+			 * throughout this subtree are zero, as they have to be if we are 
+			 * to find a matching prefix.
+			 */
+
+			node_prefix = MASK_PFX(cn->key, cn->pos);
+			key_prefix =  MASK_PFX(key, cn->pos);
+			pref_mismatch = key_prefix^node_prefix;
+			mp = 0;
+
+			/* In short: If skipped bits in this node do not match the search 
+			 * key, enter the "prefix matching" state.directly.
+			 */
+			if (pref_mismatch) {
+				while (!(pref_mismatch & (1<<(KEYLENGTH-1)))) {
+					mp++;
+					pref_mismatch = pref_mismatch <<1;
+				}
+				key_prefix = tkey_extract_bits(cn->key, mp, cn->pos-mp);
+				
+				if (key_prefix != 0)
+					goto backtrace;
+
+				if (current_prefix_length >= cn->pos)
+					current_prefix_length=mp;
+		       }
+#endif
+		       pn = (struct tnode *)n; /* Descend */
+		       chopped_off = 0;
+		       continue;
+		} 
+		if (IS_LEAF(n)) {	
+			if( check_leaf(t, (struct leaf *)n, key, &plen, flp, res, &ret))
+				goto found;
+	       }
+backtrace:
+		chopped_off++;
+
+		/* As zero don't change the child key (cindex) */
+		while ((chopped_off <= pn->bits) && !(cindex & (1<<(chopped_off-1)))) {
+			chopped_off++;
+		}
+
+		/* Decrease current_... with bits chopped off */
+		if (current_prefix_length > pn->pos + pn->bits - chopped_off)
+			current_prefix_length = pn->pos + pn->bits - chopped_off;
+		
+		/*
+		 * Either we do the actual chop off according or if we have 
+		 * chopped off all bits in this tnode walk up to our parent.
+		 */
+
+		if(chopped_off <= pn->bits)
+			cindex &= ~(1 << (chopped_off-1));
+		else {
+			if( NODE_PARENT(pn) == NULL)
+				goto failed;
+			
+			/* Get Child's index */
+			cindex = tkey_extract_bits(pn->key, NODE_PARENT(pn)->pos, NODE_PARENT(pn)->bits);
+			pn = NODE_PARENT(pn);
+			chopped_off = 0;
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+			t->stats.backtrack++;
+#endif
+			goto backtrace;
+		} 
+	}
+failed:
+	ret =  1;
+found:
+	read_unlock(&fib_lock);
+	return ret;
+}
+
+static int trie_leaf_remove(struct trie *t, t_key key)
+{
+	t_key cindex;
+	struct tnode *tp = NULL;
+	struct node *n = t->trie;
+	struct leaf *l;
+
+	if(trie_debug) 
+		printk("entering trie_leaf_remove(%p)\n", n);
+
+	/* Note that in the case skipped bits, those bits are *not* checked!
+	 * When we finish this, we will have NULL or a T_LEAF, and the 
+	 * T_LEAF may or may not match our key.
+	 */
+
+        while (n != NULL && IS_TNODE(n)) {
+		struct tnode *tn = (struct tnode *) n;
+		check_tnode(tn);
+		n = tnode_get_child(tn ,tkey_extract_bits(key, tn->pos, tn->bits));
+
+			if(n && NODE_PARENT(n) != tn) {
+				printk("BUG tn=%p, n->parent=%p\n", tn, NODE_PARENT(n));
+				BUG();
+			}
+        }
+	l = (struct leaf *) n;
+
+	if(!n || !tkey_equals(l->key, key)) 
+		return 0;
+    
+	/* 
+	 * Key found. 
+	 * Remove the leaf and rebalance the tree 
+	 */
+
+	t->revision++;
+	t->size--;
+
+	tp = NODE_PARENT(n);
+	tnode_free((struct tnode *) n);
+
+	if(tp) {
+		cindex = tkey_extract_bits(key, tp->pos, tp->bits);
+		put_child(t, (struct tnode *)tp, cindex, NULL);
+		t->trie = trie_rebalance(t, tp);
+	}
+	else
+		t->trie = NULL;
+
+	return 1;
+}
+
+static int
+fn_trie_delete(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
+	       struct nlmsghdr *nlhdr, struct netlink_skb_parms *req)
+{
+	struct trie *t = (struct trie *) tb->tb_data;
+	u32 key, mask;
+	int plen = r->rtm_dst_len;
+	u8 tos = r->rtm_tos;
+	struct fib_alias *fa, *fa_to_delete;
+	struct list_head *fa_head;
+	struct leaf *l;
+
+	if (plen > 32) 
+		return -EINVAL;
+
+	key = 0;
+	if (rta->rta_dst) 
+		memcpy(&key, rta->rta_dst, 4);
+
+	key = ntohl(key);
+	mask =  ntohl( inet_make_mask(plen) );
+
+	if(key & ~mask)
+		return -EINVAL;
+
+	key = key & mask;
+	l = fib_find_node(t, key);
+
+	if(!l)
+		return -ESRCH;
+
+	fa_head = get_fa_head(l, plen);
+	fa = fib_find_alias(fa_head, tos, 0);
+
+	if (!fa)
+		return -ESRCH;
+
+	if (trie_debug)
+		printk("Deleting %08x/%d tos=%d t=%p\n", key, plen, tos, t);
+
+	fa_to_delete = NULL;
+	fa_head = fa->fa_list.prev;
+	list_for_each_entry(fa, fa_head, fa_list) {
+		struct fib_info *fi = fa->fa_info;
+
+		if (fa->fa_tos != tos)
+			break;
+
+		if ((!r->rtm_type ||
+		     fa->fa_type == r->rtm_type) &&
+		    (r->rtm_scope == RT_SCOPE_NOWHERE ||
+		     fa->fa_scope == r->rtm_scope) &&
+		    (!r->rtm_protocol ||
+		     fi->fib_protocol == r->rtm_protocol) &&
+		    fib_nh_match(r, nlhdr, rta, fi) == 0) {
+			fa_to_delete = fa;
+			break;
+		}
+	}
+
+	if (fa_to_delete) {
+		int kill_li = 0;
+		struct leaf_info *li;
+
+		fa = fa_to_delete;
+		rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id, nlhdr, req);
+
+		l = fib_find_node(t, key);
+		li = find_leaf_info(&l->list, plen);
+
+		write_lock_bh(&fib_lock);
+
+		list_del(&fa->fa_list);
+
+		if(list_empty(fa_head)) {
+			hlist_del(&li->hlist);
+			kill_li = 1;
+		}
+		write_unlock_bh(&fib_lock);
+		
+		if(kill_li)
+			free_leaf_info(li);
+
+		if(hlist_empty(&l->list))
+			trie_leaf_remove(t, key);
+
+		if (fa->fa_state & FA_S_ACCESSED)
+			rt_cache_flush(-1);
+
+		fn_free_alias(fa);
+		return 0;
+	}
+	return -ESRCH;
+}
+
+static int trie_flush_list(struct trie *t, struct list_head *head)
+{
+	struct fib_alias *fa, *fa_node;
+	int found = 0;
+
+	list_for_each_entry_safe(fa, fa_node, head, fa_list) {
+		struct fib_info *fi = fa->fa_info;
+		
+		if (fi && (fi->fib_flags&RTNH_F_DEAD)) {
+
+ 			write_lock_bh(&fib_lock);	
+			list_del(&fa->fa_list);
+			write_unlock_bh(&fib_lock); 
+
+			fn_free_alias(fa);
+			found++;
+		}
+	}
+	return found;
+}
+
+static int trie_flush_leaf(struct trie *t, struct leaf *l)
+{
+	int found = 0;
+	struct hlist_head *lih = &l->list;
+	struct hlist_node *node, *tmp;
+	struct leaf_info *li = NULL;
+
+	hlist_for_each_entry_safe(li, node, tmp, lih, hlist) {
+			
+		found += trie_flush_list(t, &li->falh);
+
+		if (list_empty(&li->falh)) {
+
+ 			write_lock_bh(&fib_lock); 
+			hlist_del(&li->hlist);
+			write_unlock_bh(&fib_lock); 
+
+			free_leaf_info(li);
+		}
+	}
+	return found;
+}
+
+static struct leaf *nextleaf(struct trie *t, struct leaf *thisleaf)
+{
+	struct node *c = (struct node *) thisleaf;
+	struct tnode *p;
+	int idx;
+
+	if(c == NULL) {
+		if(t->trie == NULL)
+			return NULL;
+
+		if (IS_LEAF(t->trie))          /* trie w. just a leaf */
+			return (struct leaf *) t->trie;
+
+		p = (struct tnode*) t->trie;  /* Start */
+	}
+	else 
+		p = (struct tnode *) NODE_PARENT(c);
+	while (p) {
+		int pos, last;
+
+		/*  Find the next child of the parent */
+		if(c)
+			pos  = 1 + tkey_extract_bits(c->key, p->pos, p->bits);
+		else 
+			pos = 0;
+
+		last = 1 << p->bits;
+		for(idx = pos; idx < last ; idx++) {
+			if( p->child[idx]) {
+
+				/* Decend if tnode */
+
+				while (IS_TNODE(p->child[idx])) {
+					p = (struct tnode*) p->child[idx];
+					idx = 0;
+					
+					/* Rightmost non-NULL branch */
+					if( p && IS_TNODE(p) )
+						while ( p->child[idx] == NULL && idx < (1 << p->bits) ) idx++;
+
+					/* Done with this tnode? */
+					if( idx >= (1 << p->bits) || p->child[idx] == NULL ) 
+						goto up;
+				}
+				return (struct leaf*) p->child[idx];
+			}
+		}
+up:
+		/* No more children go up one step  */
+		c = (struct node*) p;
+		p = (struct tnode *) NODE_PARENT(p);
+	}
+	return NULL; /* Ready. Root of trie */
+}
+
+static int fn_trie_flush(struct fib_table *tb)
+{
+	struct trie *t = (struct trie *) tb->tb_data;
+	struct leaf *ll = NULL, *l = NULL;
+	int found = 0, h;
+
+	t->revision++;
+
+	for (h=0; (l = nextleaf(t, l)) != NULL; h++) {
+		found += trie_flush_leaf(t, l);
+
+		if (ll && hlist_empty(&ll->list))
+			trie_leaf_remove(t, ll->key);
+		ll = l;
+	}
+
+	if (ll && hlist_empty(&ll->list))
+		trie_leaf_remove(t, ll->key);
+
+	if(trie_debug) 
+		printk("trie_flush found=%d\n", found);
+	return found;
+}
+
+static int trie_last_dflt=-1;
+
+static void
+fn_trie_select_default(struct fib_table *tb, const struct flowi *flp, struct fib_result *res)
+{
+	struct trie *t = (struct trie *) tb->tb_data;
+	int order, last_idx;
+	struct fib_info *fi = NULL;
+	struct fib_info *last_resort;
+	struct fib_alias *fa = NULL;
+	struct list_head *fa_head;
+	struct leaf *l;
+
+	last_idx = -1;
+	last_resort = NULL;
+	order = -1;
+
+	read_lock(&fib_lock);
+	
+	l = fib_find_node(t, 0);
+	if(!l) 
+		goto out;
+
+	fa_head = get_fa_head(l, 0);
+	if(!fa_head)
+		goto out;
+
+	if (list_empty(fa_head)) 
+		goto out;
+
+	list_for_each_entry(fa, fa_head, fa_list) {
+		struct fib_info *next_fi = fa->fa_info;
+		
+		if (fa->fa_scope != res->scope ||
+		    fa->fa_type != RTN_UNICAST)
+			continue;
+		
+		if (next_fi->fib_priority > res->fi->fib_priority)
+			break;
+		if (!next_fi->fib_nh[0].nh_gw ||
+		    next_fi->fib_nh[0].nh_scope != RT_SCOPE_LINK)
+			continue;
+		fa->fa_state |= FA_S_ACCESSED;
+		
+		if (fi == NULL) {
+			if (next_fi != res->fi)
+				break;
+		} else if (!fib_detect_death(fi, order, &last_resort,
+					     &last_idx, &trie_last_dflt)) {
+			if (res->fi)
+				fib_info_put(res->fi);
+			res->fi = fi;
+			atomic_inc(&fi->fib_clntref);
+			trie_last_dflt = order;
+			goto out;
+		}
+		fi = next_fi;
+		order++;
+	}
+	if (order <= 0 || fi == NULL) {
+		trie_last_dflt = -1;
+		goto out;
+	}
+
+	if (!fib_detect_death(fi, order, &last_resort, &last_idx, &trie_last_dflt)) {
+		if (res->fi)
+			fib_info_put(res->fi);
+		res->fi = fi;
+		atomic_inc(&fi->fib_clntref);
+		trie_last_dflt = order;
+		goto out;
+	}
+	if (last_idx >= 0) {
+		if (res->fi)
+			fib_info_put(res->fi);
+		res->fi = last_resort;
+		if (last_resort)
+			atomic_inc(&last_resort->fib_clntref);
+	}
+	trie_last_dflt = last_idx;
+ out:;
+	read_unlock(&fib_lock);	
+}
+
+static int fn_trie_dump_fa(t_key key, int plen, struct list_head *fah, struct fib_table *tb, 
+			   struct sk_buff *skb, struct netlink_callback *cb)
+{
+	int i, s_i;
+	struct fib_alias *fa;
+
+	u32 xkey=htonl(key);
+
+	s_i=cb->args[3];
+	i = 0;
+
+	list_for_each_entry(fa, fah, fa_list) {
+		if (i < s_i) {
+			i++;
+			continue;
+		}
+		if (fa->fa_info->fib_nh == NULL) {
+			printk("Trie error _fib_nh=NULL in fa[%d] k=%08x plen=%d\n", i, key, plen);
+			i++;
+			continue;
+		}
+		if (fa->fa_info == NULL) {
+			printk("Trie error fa_info=NULL in fa[%d] k=%08x plen=%d\n", i, key, plen);
+			i++;
+			continue;
+		}
+
+		if (fib_dump_info(skb, NETLINK_CB(cb->skb).pid,
+				  cb->nlh->nlmsg_seq,
+				  RTM_NEWROUTE,
+				  tb->tb_id,
+				  fa->fa_type,
+				  fa->fa_scope,
+				  &xkey,
+				  plen,
+				  fa->fa_tos,
+				  fa->fa_info, 0) < 0) {
+			cb->args[3] = i;
+			return -1;
+			}
+		i++;
+	}
+	cb->args[3]=i;
+	return skb->len;
+}
+
+static int fn_trie_dump_plen(struct trie *t, int plen, struct fib_table *tb, struct sk_buff *skb, 
+			     struct netlink_callback *cb)
+{
+	int h, s_h;
+	struct list_head *fa_head;
+	struct leaf *l = NULL;
+	s_h=cb->args[2];
+
+	for (h=0; (l = nextleaf(t, l)) != NULL; h++) {
+
+		if (h < s_h)
+			continue;
+		if (h > s_h)
+			memset(&cb->args[3], 0,
+			       sizeof(cb->args) - 3*sizeof(cb->args[0]));
+
+		fa_head = get_fa_head(l, plen);
+		
+		if(!fa_head)
+			continue;
+
+		if(list_empty(fa_head))
+			continue;
+
+		if (fn_trie_dump_fa(l->key, plen, fa_head, tb, skb, cb)<0) {
+			cb->args[2]=h;
+			return -1;
+		}
+	}
+	cb->args[2]=h;
+	return skb->len;
+}
+
+static int fn_trie_dump(struct fib_table *tb, struct sk_buff *skb, struct netlink_callback *cb)
+{
+	int m, s_m;
+	struct trie *t = (struct trie *) tb->tb_data;
+
+	s_m = cb->args[1];
+
+	read_lock(&fib_lock);
+	for (m=0; m<=32; m++) {
+
+		if (m < s_m)
+			continue;
+		if (m > s_m)
+			memset(&cb->args[2], 0,
+			       sizeof(cb->args) - 2*sizeof(cb->args[0]));
+
+		if (fn_trie_dump_plen(t, 32-m, tb, skb, cb)<0) {
+			cb->args[1] = m;
+			goto out;
+		}
+	}
+	read_unlock(&fib_lock);
+	cb->args[1] = m;
+	return skb->len;
+ out:
+	read_unlock(&fib_lock);
+	return -1;
+}
+
+/* Fix more generic FIB names for init later */
+
+#ifdef CONFIG_IP_MULTIPLE_TABLES
+struct fib_table * fib_hash_init(int id)
+#else
+struct fib_table * __init fib_hash_init(int id)
+#endif
+{
+	struct fib_table *tb;
+	struct trie *t;
+
+	if (fn_alias_kmem == NULL)
+		fn_alias_kmem = kmem_cache_create("ip_fib_alias",
+						  sizeof(struct fib_alias),
+						  0, SLAB_HWCACHE_ALIGN,
+						  NULL, NULL);
+
+	tb = kmalloc(sizeof(struct fib_table) + sizeof(struct trie),
+		     GFP_KERNEL);
+	if (tb == NULL)
+		return NULL;
+
+	tb->tb_id = id;
+	tb->tb_lookup = fn_trie_lookup;
+	tb->tb_insert = fn_trie_insert;
+	tb->tb_delete = fn_trie_delete;
+	tb->tb_flush = fn_trie_flush;
+	tb->tb_select_default = fn_trie_select_default;
+	tb->tb_dump = fn_trie_dump;
+	memset(tb->tb_data, 0, sizeof(struct trie));
+
+	t = (struct trie *) tb->tb_data;
+
+	trie_init(t);
+
+	if (id == RT_TABLE_LOCAL) 
+                trie_local=t;
+	  else if (id == RT_TABLE_MAIN) 
+                trie_main=t;
+
+	if (id == RT_TABLE_LOCAL)
+		printk("IPv4 FIB: Using LC-trie version %s\n", VERSION);
+
+	return tb;
+}
+
+/* Trie dump functions */
+
+static void putspace_seq(struct seq_file *seq, int n)
+{
+	while (n--) seq_printf(seq, " ");
+}
+
+static void printbin_seq(struct seq_file *seq, unsigned int v, int bits)
+{
+	while (bits--)
+		seq_printf(seq, "%s", (v & (1<<bits))?"1":"0");
+}
+
+static void printnode_seq(struct seq_file *seq, int indent, struct node *n, 
+		   int pend, int cindex, int bits)
+{
+	putspace_seq(seq, indent);
+	if (IS_LEAF(n))
+		seq_printf(seq, "|");
+	else
+		seq_printf(seq, "+");
+	if (bits) {
+		seq_printf(seq, "%d/", cindex);
+		printbin_seq(seq, cindex, bits);
+		seq_printf(seq, ": ");
+	}
+	else
+		seq_printf(seq, "<root>: ");
+	seq_printf(seq, "%s:%p ", IS_LEAF(n)?"Leaf":"Internal node", n);
+
+	if (IS_LEAF(n))
+		seq_printf(seq, "key=%d.%d.%d.%d\n", 
+			   n->key >> 24, (n->key >> 16) % 256, (n->key >> 8) % 256, n->key % 256);
+	else {
+		int plen=((struct tnode *)n)->pos;
+		t_key prf=MASK_PFX(n->key, plen);
+		seq_printf(seq, "key=%d.%d.%d.%d/%d\n", 
+			   prf >> 24, (prf >> 16) % 256, (prf >> 8) % 256, prf % 256, plen);
+	}
+	if (IS_LEAF(n)) {
+		struct leaf *l=(struct leaf *)n;
+		struct fib_alias *fa;
+		int i;
+		for (i=32; i>=0; i--)
+		  if(find_leaf_info(&l->list, i)) {
+			
+				struct list_head *fa_head = get_fa_head(l, i);
+				
+				if(!fa_head)
+					continue;
+
+				if(list_empty(fa_head))
+					continue;
+
+				putspace_seq(seq, indent+2);
+				seq_printf(seq, "{/%d...dumping}\n", i);
+
+
+				list_for_each_entry(fa, fa_head, fa_list) {
+					putspace_seq(seq, indent+2);
+					if (fa->fa_info->fib_nh == NULL) {
+						seq_printf(seq, "Error _fib_nh=NULL\n");
+						continue;
+					}
+					if (fa->fa_info == NULL) {
+						seq_printf(seq, "Error fa_info=NULL\n");
+						continue;
+					}
+
+					seq_printf(seq, "{type=%d scope=%d TOS=%d}\n",
+					      fa->fa_type,
+					      fa->fa_scope,
+					      fa->fa_tos);
+				}
+			}
+	}
+	else if (IS_TNODE(n)) {
+		struct tnode *tn=(struct tnode *)n;
+		putspace_seq(seq, indent); seq_printf(seq, "|    ");
+		seq_printf(seq, "{key prefix=%08x/", tn->key&TKEY_GET_MASK(0, tn->pos));
+		printbin_seq(seq, tkey_extract_bits(tn->key, 0, tn->pos), tn->pos);
+		seq_printf(seq, "}\n");
+		putspace_seq(seq, indent); seq_printf(seq, "|    ");
+		seq_printf(seq, "{pos=%d", tn->pos);
+		seq_printf(seq, " (skip=%d bits)", tn->pos - pend);
+		seq_printf(seq, " bits=%d (%u children)}\n", tn->bits, (1 << tn->bits));
+		putspace_seq(seq, indent); seq_printf(seq, "|    ");
+		seq_printf(seq, "{empty=%d full=%d}\n", tn->empty_children, tn->full_children);
+	}
+}
+
+static void trie_dump_seq(struct seq_file *seq, struct trie *t)
+{
+	struct node *n=t->trie;
+	int cindex=0;
+	int indent=1;
+	int pend=0;
+	int depth = 0;
+
+  	read_lock(&fib_lock);
+
+	seq_printf(seq, "------ trie_dump of t=%p ------\n", t);
+	if (n) {
+		printnode_seq(seq, indent, n, pend, cindex, 0);
+		if (IS_TNODE(n)) {
+			struct tnode *tn=(struct tnode *)n;
+			pend = tn->pos+tn->bits;
+			putspace_seq(seq, indent); seq_printf(seq, "\\--\n");
+			indent += 3;
+			depth++;
+
+			while (tn && cindex < (1 << tn->bits)) {
+				if (tn->child[cindex]) {
+					
+					/* Got a child */
+					
+					printnode_seq(seq, indent, tn->child[cindex], pend, cindex, tn->bits);
+					if (IS_LEAF(tn->child[cindex])) { 
+						cindex++;
+						
+					}
+					else {
+						/* 
+						 * New tnode. Decend one level 
+						 */
+						
+						depth++;
+						n=tn->child[cindex];
+						tn=(struct tnode *)n;
+						pend=tn->pos+tn->bits;
+						putspace_seq(seq, indent); seq_printf(seq, "\\--\n");
+						indent+=3;
+						cindex=0;
+					}
+				}
+				else 
+					cindex++;
+
+				/*
+				 * Test if we are done 
+				 */
+				
+				while (cindex >= (1 << tn->bits)) {
+
+					/*
+					 * Move upwards and test for root
+					 * pop off all traversed  nodes
+					 */
+					
+					if (NODE_PARENT(tn) == NULL) {
+						tn = NULL;
+						n = NULL;
+						break;
+					}
+					else {
+						cindex = tkey_extract_bits(tn->key, NODE_PARENT(tn)->pos, NODE_PARENT(tn)->bits);
+						tn = NODE_PARENT(tn);
+						cindex++;
+						n=(struct node *)tn;
+						pend=tn->pos+tn->bits;
+						indent-=3;
+						depth--;
+					}
+				}
+			}
+		}
+		else n = NULL;
+	}
+	else seq_printf(seq, "------ trie is empty\n");
+
+  	read_unlock(&fib_lock);
+}
+
+static struct trie_stat *trie_stat_new(void)
+{
+	struct trie_stat *s = kmalloc(sizeof(struct trie_stat), GFP_KERNEL);
+	int i;
+	
+	if(s) {
+		s->totdepth = 0;
+		s->maxdepth = 0;
+		s->tnodes = 0;
+		s->leaves = 0;
+		s->nullpointers = 0;
+		
+		for(i=0; i< MAX_CHILDS; i++)
+			s->nodesizes[i] = 0;
+	}
+	return s;
+}    
+
+static struct trie_stat *trie_collect_stats(struct trie *t)
+{
+	struct node *n=t->trie;
+	struct trie_stat *s = trie_stat_new();
+	int cindex = 0;
+	int indent = 1;
+	int pend = 0;
+	int depth = 0;
+
+	read_lock(&fib_lock);		
+
+	if (s) {
+		if (n) {
+			if (IS_TNODE(n)) {
+				struct tnode *tn = (struct tnode *)n;
+				pend=tn->pos+tn->bits;
+				indent += 3;
+				s->nodesizes[tn->bits]++;
+				depth++;
+
+				while (tn && cindex < (1 << tn->bits)) {
+					if (tn->child[cindex]) {
+						/* Got a child */
+					
+						if (IS_LEAF(tn->child[cindex])) { 
+							cindex++;
+						
+							/* stats */
+							if (depth > s->maxdepth)
+								s->maxdepth = depth;
+							s->totdepth += depth;
+							s->leaves++;
+						}
+					
+						else {
+							/* 
+							 * New tnode. Decend one level 
+							 */
+						
+							s->tnodes++;
+							s->nodesizes[tn->bits]++;
+							depth++;
+						
+							n = tn->child[cindex];
+							tn = (struct tnode *)n;
+							pend = tn->pos+tn->bits;
+
+							indent += 3;
+							cindex = 0;
+						}
+					}
+					else {
+						cindex++;
+						s->nullpointers++; 
+					}
+
+					/*
+					 * Test if we are done 
+					 */
+				
+					while (cindex >= (1 << tn->bits)) {
+
+						/*
+						 * Move upwards and test for root
+						 * pop off all traversed  nodes
+						 */
+
+						
+						if (NODE_PARENT(tn) == NULL) {
+							tn = NULL;
+							n = NULL;
+							break;
+						}
+						else {
+							cindex = tkey_extract_bits(tn->key, NODE_PARENT(tn)->pos, NODE_PARENT(tn)->bits);
+							tn = NODE_PARENT(tn);
+							cindex++; 
+							n = (struct node *)tn;
+							pend=tn->pos+tn->bits;
+							indent -= 3;
+							depth--;
+						}
+ 					}
+				}
+			}
+			else n = NULL;
+		}
+	}
+
+	read_unlock(&fib_lock);		
+	return s;
+}
+
+#ifdef CONFIG_PROC_FS
+
+static struct fib_alias *fib_triestat_get_first(struct seq_file *seq)
+{
+	return NULL;
+}
+
+static struct fib_alias *fib_triestat_get_next(struct seq_file *seq)
+{
+	return NULL;
+}
+
+static void *fib_triestat_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	void *v = NULL;
+
+	if (ip_fib_main_table)
+		v = *pos ? fib_triestat_get_next(seq) : SEQ_START_TOKEN;
+	return v;
+}
+
+static void *fib_triestat_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	return v == SEQ_START_TOKEN ? fib_triestat_get_first(seq) : fib_triestat_get_next(seq);
+}
+
+static void fib_triestat_seq_stop(struct seq_file *seq, void *v)
+{
+
+}
+
+/* 
+ *	This outputs /proc/net/fib_triestats
+ *
+ *	It always works in backward compatibility mode.
+ *	The format of the file is not supposed to be changed.
+ */
+
+static void collect_and_show(struct trie *t, struct seq_file *seq)
+{
+	int bytes = 0; /* How many bytes are used, a ref is 4 bytes */
+	int i, max, pointers;
+        struct trie_stat *stat;
+	int avdepth;
+
+	stat = trie_collect_stats(t);
+
+	bytes=0;
+	seq_printf(seq, "trie=%p\n", t);
+
+	if (stat) {
+		if (stat->leaves)
+			avdepth=stat->totdepth*100 / stat->leaves;
+		else
+			avdepth=0;
+		seq_printf(seq, "Aver depth: %d.%02d\n", avdepth / 100, avdepth % 100 );
+		seq_printf(seq, "Max depth: %4d\n", stat->maxdepth);
+				
+		seq_printf(seq, "Leaves: %d\n", stat->leaves);
+		bytes += sizeof(struct leaf) * stat->leaves;
+		seq_printf(seq, "Internal nodes: %d\n", stat->tnodes);
+		bytes += sizeof(struct tnode) * stat->tnodes;
+
+		max = MAX_CHILDS-1;
+
+		while (max >= 0 && stat->nodesizes[max] == 0)
+			max--;
+		pointers = 0;
+
+		for (i = 1; i <= max; i++) 
+			if (stat->nodesizes[i] != 0) {
+				seq_printf(seq, "  %d: %d",  i, stat->nodesizes[i]);
+				pointers += (1<<i) * stat->nodesizes[i];
+			}
+		seq_printf(seq, "\n");
+		seq_printf(seq, "Pointers: %d\n", pointers);
+		bytes += sizeof(struct node *) * pointers;
+		seq_printf(seq, "Null ptrs: %d\n", stat->nullpointers);
+		seq_printf(seq, "Total size: %d  kB\n", bytes / 1024);
+
+		kfree(stat);
+	}
+
+#ifdef CONFIG_IP_FIB_TRIE_STATS
+	seq_printf(seq, "Counters:\n---------\n");
+	seq_printf(seq,"gets = %d\n", t->stats.gets);
+	seq_printf(seq,"backtracks = %d\n", t->stats.backtrack);
+	seq_printf(seq,"semantic match passed = %d\n", t->stats.semantic_match_passed);
+	seq_printf(seq,"semantic match miss = %d\n", t->stats.semantic_match_miss);
+	seq_printf(seq,"null node hit= %d\n", t->stats.null_node_hit);
+#ifdef CLEAR_STATS
+	memset(&(t->stats), 0, sizeof(t->stats));
+#endif
+#endif /*  CONFIG_IP_FIB_TRIE_STATS */
+}
+
+static int fib_triestat_seq_show(struct seq_file *seq, void *v)
+{
+	char bf[128];
+    
+	if (v == SEQ_START_TOKEN) {
+		seq_printf(seq, "Basic info: size of leaf: %Zd bytes, size of tnode: %Zd bytes.\n", 
+			   sizeof(struct leaf), sizeof(struct tnode));
+		if (trie_local) 
+			collect_and_show(trie_local, seq);
+
+		if (trie_main) 
+			collect_and_show(trie_main, seq);
+	}
+	else {
+		snprintf(bf, sizeof(bf),
+			 "*\t%08X\t%08X", 200, 400);
+		
+		seq_printf(seq, "%-127s\n", bf);
+	}
+	return 0;
+}
+
+static struct seq_operations fib_triestat_seq_ops = {
+	.start  = fib_triestat_seq_start,
+	.next   = fib_triestat_seq_next,
+	.stop   = fib_triestat_seq_stop,
+	.show   = fib_triestat_seq_show,
+};
+
+static int fib_triestat_seq_open(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq;
+	int rc = -ENOMEM;
+
+	rc = seq_open(file, &fib_triestat_seq_ops);
+	if (rc)
+		goto out_kfree;
+
+	seq	     = file->private_data;
+out:
+	return rc;
+out_kfree:
+	goto out;
+}
+
+static struct file_operations fib_triestat_seq_fops = {
+	.owner		= THIS_MODULE,
+	.open           = fib_triestat_seq_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release	= seq_release_private,
+};
+
+int __init fib_stat_proc_init(void)
+{
+	if (!proc_net_fops_create("fib_triestat", S_IRUGO, &fib_triestat_seq_fops))
+		return -ENOMEM;
+	return 0;
+}
+
+void __init fib_stat_proc_exit(void)
+{
+	proc_net_remove("fib_triestat");
+}
+
+static struct fib_alias *fib_trie_get_first(struct seq_file *seq)
+{
+	return NULL;
+}
+
+static struct fib_alias *fib_trie_get_next(struct seq_file *seq)
+{
+	return NULL;
+}
+
+static void *fib_trie_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	void *v = NULL;
+
+	if (ip_fib_main_table)
+		v = *pos ? fib_trie_get_next(seq) : SEQ_START_TOKEN;
+	return v;
+}
+
+static void *fib_trie_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	return v == SEQ_START_TOKEN ? fib_trie_get_first(seq) : fib_trie_get_next(seq);
+}
+
+static void fib_trie_seq_stop(struct seq_file *seq, void *v)
+{
+
+}
+
+/* 
+ *	This outputs /proc/net/fib_trie.
+ *
+ *	It always works in backward compatibility mode.
+ *	The format of the file is not supposed to be changed.
+ */
+
+static int fib_trie_seq_show(struct seq_file *seq, void *v)
+{
+	char bf[128];
+
+	if (v == SEQ_START_TOKEN) {
+		if (trie_local) 
+			trie_dump_seq(seq, trie_local);
+
+		if (trie_main) 
+			trie_dump_seq(seq, trie_main);
+	}
+
+	else {
+		snprintf(bf, sizeof(bf),
+			 "*\t%08X\t%08X", 200, 400);
+		seq_printf(seq, "%-127s\n", bf);
+	}
+
+	return 0;
+}
+
+static struct seq_operations fib_trie_seq_ops = {
+	.start  = fib_trie_seq_start,
+	.next   = fib_trie_seq_next,
+	.stop   = fib_trie_seq_stop,
+	.show   = fib_trie_seq_show,
+};
+
+static int fib_trie_seq_open(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq;
+	int rc = -ENOMEM;
+
+	rc = seq_open(file, &fib_trie_seq_ops);
+	if (rc)
+		goto out_kfree;
+
+	seq	     = file->private_data;
+out:
+	return rc;
+out_kfree:
+	goto out;
+}
+
+static struct file_operations fib_trie_seq_fops = {
+	.owner		= THIS_MODULE,
+	.open           = fib_trie_seq_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release	= seq_release_private,
+};
+
+int __init fib_proc_init(void)
+{
+	if (!proc_net_fops_create("fib_trie", S_IRUGO, &fib_trie_seq_fops))
+		return -ENOMEM;
+	return 0;
+}
+
+void __init fib_proc_exit(void)
+{
+	proc_net_remove("fib_trie");
+}
+
+#endif /* CONFIG_PROC_FS */
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 4e47a2658c7..af2ec88bbb2 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -184,6 +184,7 @@ int ip_call_ra_chain(struct sk_buff *skb)
 					raw_rcv(last, skb2);
 			}
 			last = sk;
+			nf_reset(skb);
 		}
 	}
 
@@ -200,10 +201,6 @@ static inline int ip_local_deliver_finish(struct sk_buff *skb)
 {
 	int ihl = skb->nh.iph->ihl*4;
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	nf_debug_ip_local_deliver(skb);
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
 	__skb_pull(skb, ihl);
 
 	/* Free reference early: we don't need it any more, and it may
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 760dc8238d6..ee07aec215a 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -107,10 +107,6 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb)
 	newskb->pkt_type = PACKET_LOOPBACK;
 	newskb->ip_summed = CHECKSUM_UNNECESSARY;
 	BUG_TRAP(newskb->dst);
-
-#ifdef CONFIG_NETFILTER_DEBUG
-	nf_debug_ip_loopback_xmit(newskb);
-#endif
 	nf_reset(newskb);
 	netif_rx(newskb);
 	return 0;
@@ -192,10 +188,6 @@ static inline int ip_finish_output2(struct sk_buff *skb)
 		skb = skb2;
 	}
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	nf_debug_ip_finish_output2(skb);
-#endif /*CONFIG_NETFILTER_DEBUG*/
-
 	nf_reset(skb);
 
 	if (hh) {
@@ -415,9 +407,6 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->nf_bridge = from->nf_bridge;
 	nf_bridge_get(to->nf_bridge);
 #endif
-#ifdef CONFIG_NETFILTER_DEBUG
-	to->nf_debug = from->nf_debug;
-#endif
 #endif
 }
 
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index e21c049ec62..e4f809a93f4 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1350,6 +1350,7 @@ int ip_mr_input(struct sk_buff *skb)
 			     */
 			    read_lock(&mrt_lock);
 			    if (mroute_socket) {
+				    nf_reset(skb);
 				    raw_rcv(mroute_socket, skb);
 				    read_unlock(&mrt_lock);
 				    return 0;
diff --git a/net/ipv4/ipvs/ip_vs_xmit.c b/net/ipv4/ipvs/ip_vs_xmit.c
index de21da00057..a8512a3fd08 100644
--- a/net/ipv4/ipvs/ip_vs_xmit.c
+++ b/net/ipv4/ipvs/ip_vs_xmit.c
@@ -127,7 +127,6 @@ ip_vs_dst_reset(struct ip_vs_dest *dest)
 
 #define IP_VS_XMIT(skb, rt)				\
 do {							\
-	nf_reset_debug(skb);				\
 	(skb)->nfcache |= NFC_IPVS_PROPERTY;		\
 	(skb)->ip_summed = CHECKSUM_NONE;		\
 	NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, (skb), NULL,	\
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index df79f5ed6a0..fa163425668 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -60,7 +60,6 @@ static DECLARE_MUTEX(arpt_mutex);
 
 #define ASSERT_READ_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
 struct arpt_table_info {
diff --git a/net/ipv4/netfilter/ip_conntrack_amanda.c b/net/ipv4/netfilter/ip_conntrack_amanda.c
index 3dbddd06260..a78a320eee0 100644
--- a/net/ipv4/netfilter/ip_conntrack_amanda.c
+++ b/net/ipv4/netfilter/ip_conntrack_amanda.c
@@ -26,7 +26,6 @@
 #include <net/checksum.h>
 #include <net/udp.h>
 
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_conntrack_amanda.h>
 
@@ -42,7 +41,7 @@ static char *conns[] = { "DATA ", "MESG ", "INDEX " };
 
 /* This is slow, but it's simple. --RR */
 static char amanda_buffer[65536];
-static DECLARE_LOCK(amanda_buffer_lock);
+static DEFINE_SPINLOCK(amanda_buffer_lock);
 
 unsigned int (*ip_nat_amanda_hook)(struct sk_buff **pskb,
 				   enum ip_conntrack_info ctinfo,
@@ -76,7 +75,7 @@ static int help(struct sk_buff **pskb,
 		return NF_ACCEPT;
 	}
 
-	LOCK_BH(&amanda_buffer_lock);
+	spin_lock_bh(&amanda_buffer_lock);
 	skb_copy_bits(*pskb, dataoff, amanda_buffer, (*pskb)->len - dataoff);
 	data = amanda_buffer;
 	data_limit = amanda_buffer + (*pskb)->len - dataoff;
@@ -134,7 +133,7 @@ static int help(struct sk_buff **pskb,
 	}
 
 out:
-	UNLOCK_BH(&amanda_buffer_lock);
+	spin_unlock_bh(&amanda_buffer_lock);
 	return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 09e82462297..4b78ebeb663 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -38,10 +38,10 @@
 #include <linux/percpu.h>
 #include <linux/moduleparam.h>
 
-/* This rwlock protects the main hash table, protocol/helper/expected
+/* ip_conntrack_lock protects the main hash table, protocol/helper/expected
    registrations, conntrack timers*/
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_conntrack_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_conntrack_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
@@ -57,7 +57,7 @@
 #define DEBUGP(format, args...)
 #endif
 
-DECLARE_RWLOCK(ip_conntrack_lock);
+DEFINE_RWLOCK(ip_conntrack_lock);
 
 /* ip_conntrack_standalone needs this */
 atomic_t ip_conntrack_count = ATOMIC_INIT(0);
@@ -147,7 +147,7 @@ static void destroy_expect(struct ip_conntrack_expect *exp)
 
 static void unlink_expect(struct ip_conntrack_expect *exp)
 {
-	MUST_BE_WRITE_LOCKED(&ip_conntrack_lock);
+	ASSERT_WRITE_LOCK(&ip_conntrack_lock);
 	list_del(&exp->list);
 	/* Logically in destroy_expect, but we hold the lock here. */
 	exp->master->expecting--;
@@ -157,9 +157,9 @@ static void expectation_timed_out(unsigned long ul_expect)
 {
 	struct ip_conntrack_expect *exp = (void *)ul_expect;
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	unlink_expect(exp);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 	destroy_expect(exp);
 }
 
@@ -209,7 +209,7 @@ clean_from_lists(struct ip_conntrack *ct)
 	unsigned int ho, hr;
 	
 	DEBUGP("clean_from_lists(%p)\n", ct);
-	MUST_BE_WRITE_LOCKED(&ip_conntrack_lock);
+	ASSERT_WRITE_LOCK(&ip_conntrack_lock);
 
 	ho = hash_conntrack(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
 	hr = hash_conntrack(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
@@ -240,7 +240,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
 	if (ip_conntrack_destroyed)
 		ip_conntrack_destroyed(ct);
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	/* Expectations will have been removed in clean_from_lists,
 	 * except TFTP can create an expectation on the first packet,
 	 * before connection is in the list, so we need to clean here,
@@ -254,7 +254,7 @@ destroy_conntrack(struct nf_conntrack *nfct)
 	}
 
 	CONNTRACK_STAT_INC(delete);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	if (ct->master)
 		ip_conntrack_put(ct->master);
@@ -268,12 +268,12 @@ static void death_by_timeout(unsigned long ul_conntrack)
 {
 	struct ip_conntrack *ct = (void *)ul_conntrack;
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	/* Inside lock so preempt is disabled on module removal path.
 	 * Otherwise we can get spurious warnings. */
 	CONNTRACK_STAT_INC(delete_list);
 	clean_from_lists(ct);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 	ip_conntrack_put(ct);
 }
 
@@ -282,7 +282,7 @@ conntrack_tuple_cmp(const struct ip_conntrack_tuple_hash *i,
 		    const struct ip_conntrack_tuple *tuple,
 		    const struct ip_conntrack *ignored_conntrack)
 {
-	MUST_BE_READ_LOCKED(&ip_conntrack_lock);
+	ASSERT_READ_LOCK(&ip_conntrack_lock);
 	return tuplehash_to_ctrack(i) != ignored_conntrack
 		&& ip_ct_tuple_equal(tuple, &i->tuple);
 }
@@ -294,7 +294,7 @@ __ip_conntrack_find(const struct ip_conntrack_tuple *tuple,
 	struct ip_conntrack_tuple_hash *h;
 	unsigned int hash = hash_conntrack(tuple);
 
-	MUST_BE_READ_LOCKED(&ip_conntrack_lock);
+	ASSERT_READ_LOCK(&ip_conntrack_lock);
 	list_for_each_entry(h, &ip_conntrack_hash[hash], list) {
 		if (conntrack_tuple_cmp(h, tuple, ignored_conntrack)) {
 			CONNTRACK_STAT_INC(found);
@@ -313,11 +313,11 @@ ip_conntrack_find_get(const struct ip_conntrack_tuple *tuple,
 {
 	struct ip_conntrack_tuple_hash *h;
 
-	READ_LOCK(&ip_conntrack_lock);
+	read_lock_bh(&ip_conntrack_lock);
 	h = __ip_conntrack_find(tuple, ignored_conntrack);
 	if (h)
 		atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
-	READ_UNLOCK(&ip_conntrack_lock);
+	read_unlock_bh(&ip_conntrack_lock);
 
 	return h;
 }
@@ -352,7 +352,7 @@ __ip_conntrack_confirm(struct sk_buff **pskb)
 	IP_NF_ASSERT(!is_confirmed(ct));
 	DEBUGP("Confirming conntrack %p\n", ct);
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 
 	/* See if there's one in the list already, including reverse:
            NAT could have grabbed it without realizing, since we're
@@ -380,12 +380,12 @@ __ip_conntrack_confirm(struct sk_buff **pskb)
 		atomic_inc(&ct->ct_general.use);
 		set_bit(IPS_CONFIRMED_BIT, &ct->status);
 		CONNTRACK_STAT_INC(insert);
-		WRITE_UNLOCK(&ip_conntrack_lock);
+		write_unlock_bh(&ip_conntrack_lock);
 		return NF_ACCEPT;
 	}
 
 	CONNTRACK_STAT_INC(insert_failed);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	return NF_DROP;
 }
@@ -398,9 +398,9 @@ ip_conntrack_tuple_taken(const struct ip_conntrack_tuple *tuple,
 {
 	struct ip_conntrack_tuple_hash *h;
 
-	READ_LOCK(&ip_conntrack_lock);
+	read_lock_bh(&ip_conntrack_lock);
 	h = __ip_conntrack_find(tuple, ignored_conntrack);
-	READ_UNLOCK(&ip_conntrack_lock);
+	read_unlock_bh(&ip_conntrack_lock);
 
 	return h != NULL;
 }
@@ -419,13 +419,13 @@ static int early_drop(struct list_head *chain)
 	struct ip_conntrack *ct = NULL;
 	int dropped = 0;
 
-	READ_LOCK(&ip_conntrack_lock);
+	read_lock_bh(&ip_conntrack_lock);
 	h = LIST_FIND_B(chain, unreplied, struct ip_conntrack_tuple_hash *);
 	if (h) {
 		ct = tuplehash_to_ctrack(h);
 		atomic_inc(&ct->ct_general.use);
 	}
-	READ_UNLOCK(&ip_conntrack_lock);
+	read_unlock_bh(&ip_conntrack_lock);
 
 	if (!ct)
 		return dropped;
@@ -508,7 +508,7 @@ init_conntrack(const struct ip_conntrack_tuple *tuple,
 	conntrack->timeout.data = (unsigned long)conntrack;
 	conntrack->timeout.function = death_by_timeout;
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	exp = find_expectation(tuple);
 
 	if (exp) {
@@ -532,7 +532,7 @@ init_conntrack(const struct ip_conntrack_tuple *tuple,
 	list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
 
 	atomic_inc(&ip_conntrack_count);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	if (exp) {
 		if (exp->expectfn)
@@ -723,17 +723,17 @@ void ip_conntrack_unexpect_related(struct ip_conntrack_expect *exp)
 {
 	struct ip_conntrack_expect *i;
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	/* choose the the oldest expectation to evict */
 	list_for_each_entry_reverse(i, &ip_conntrack_expect_list, list) {
 		if (expect_matches(i, exp) && del_timer(&i->timeout)) {
 			unlink_expect(i);
-			WRITE_UNLOCK(&ip_conntrack_lock);
+			write_unlock_bh(&ip_conntrack_lock);
 			destroy_expect(i);
 			return;
 		}
 	}
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 }
 
 struct ip_conntrack_expect *ip_conntrack_expect_alloc(void)
@@ -760,15 +760,11 @@ static void ip_conntrack_expect_insert(struct ip_conntrack_expect *exp)
 	exp->master->expecting++;
 	list_add(&exp->list, &ip_conntrack_expect_list);
 
-	if (exp->master->helper->timeout) {
-		init_timer(&exp->timeout);
-		exp->timeout.data = (unsigned long)exp;
-		exp->timeout.function = expectation_timed_out;
-		exp->timeout.expires
-			= jiffies + exp->master->helper->timeout * HZ;
-		add_timer(&exp->timeout);
-	} else
-		exp->timeout.function = NULL;
+	init_timer(&exp->timeout);
+	exp->timeout.data = (unsigned long)exp;
+	exp->timeout.function = expectation_timed_out;
+	exp->timeout.expires = jiffies + exp->master->helper->timeout * HZ;
+	add_timer(&exp->timeout);
 
 	CONNTRACK_STAT_INC(expect_create);
 }
@@ -808,7 +804,7 @@ int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
 	DEBUGP("tuple: "); DUMP_TUPLE(&expect->tuple);
 	DEBUGP("mask:  "); DUMP_TUPLE(&expect->mask);
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	list_for_each_entry(i, &ip_conntrack_expect_list, list) {
 		if (expect_matches(i, expect)) {
 			/* Refresh timer: if it's dying, ignore.. */
@@ -832,7 +828,7 @@ int ip_conntrack_expect_related(struct ip_conntrack_expect *expect)
 	ip_conntrack_expect_insert(expect);
 	ret = 0;
 out:
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
  	return ret;
 }
 
@@ -841,7 +837,7 @@ out:
 void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
 			      const struct ip_conntrack_tuple *newreply)
 {
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	/* Should be unconfirmed, so not in hash table yet */
 	IP_NF_ASSERT(!is_confirmed(conntrack));
 
@@ -851,15 +847,15 @@ void ip_conntrack_alter_reply(struct ip_conntrack *conntrack,
 	conntrack->tuplehash[IP_CT_DIR_REPLY].tuple = *newreply;
 	if (!conntrack->master && conntrack->expecting == 0)
 		conntrack->helper = ip_ct_find_helper(newreply);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 }
 
 int ip_conntrack_helper_register(struct ip_conntrack_helper *me)
 {
 	BUG_ON(me->timeout == 0);
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	list_prepend(&helpers, me);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	return 0;
 }
@@ -878,7 +874,7 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
 	struct ip_conntrack_expect *exp, *tmp;
 
 	/* Need write lock here, to delete helper. */
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	LIST_DELETE(&helpers, me);
 
 	/* Get rid of expectations */
@@ -893,7 +889,7 @@ void ip_conntrack_helper_unregister(struct ip_conntrack_helper *me)
 	for (i = 0; i < ip_conntrack_htable_size; i++)
 		LIST_FIND_W(&ip_conntrack_hash[i], unhelp,
 			    struct ip_conntrack_tuple_hash *, me);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	/* Someone could be still looking at the helper in a bh. */
 	synchronize_net();
@@ -925,14 +921,14 @@ void ip_ct_refresh_acct(struct ip_conntrack *ct,
 		ct->timeout.expires = extra_jiffies;
 		ct_add_counters(ct, ctinfo, skb);
 	} else {
-		WRITE_LOCK(&ip_conntrack_lock);
+		write_lock_bh(&ip_conntrack_lock);
 		/* Need del_timer for race avoidance (may already be dying). */
 		if (del_timer(&ct->timeout)) {
 			ct->timeout.expires = jiffies + extra_jiffies;
 			add_timer(&ct->timeout);
 		}
 		ct_add_counters(ct, ctinfo, skb);
-		WRITE_UNLOCK(&ip_conntrack_lock);
+		write_unlock_bh(&ip_conntrack_lock);
 	}
 }
 
@@ -940,10 +936,6 @@ void ip_ct_refresh_acct(struct ip_conntrack *ct,
 struct sk_buff *
 ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user)
 {
-#ifdef CONFIG_NETFILTER_DEBUG
-	unsigned int olddebug = skb->nf_debug;
-#endif
-
 	skb_orphan(skb);
 
 	local_bh_disable(); 
@@ -953,12 +945,7 @@ ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user)
 	if (skb) {
 		ip_send_check(skb->nh.iph);
 		skb->nfcache |= NFC_ALTERED;
-#ifdef CONFIG_NETFILTER_DEBUG
-		/* Packet path as if nothing had happened. */
-		skb->nf_debug = olddebug;
-#endif
 	}
-
 	return skb;
 }
 
@@ -997,7 +984,7 @@ get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
 {
 	struct ip_conntrack_tuple_hash *h = NULL;
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	for (; *bucket < ip_conntrack_htable_size; (*bucket)++) {
 		h = LIST_FIND_W(&ip_conntrack_hash[*bucket], do_iter,
 				struct ip_conntrack_tuple_hash *, iter, data);
@@ -1009,7 +996,7 @@ get_next_corpse(int (*iter)(struct ip_conntrack *i, void *data),
 				struct ip_conntrack_tuple_hash *, iter, data);
 	if (h)
 		atomic_inc(&tuplehash_to_ctrack(h)->ct_general.use);
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	return h;
 }
@@ -1201,14 +1188,14 @@ int __init ip_conntrack_init(void)
 	}
 
 	/* Don't NEED lock here, but good form anyway. */
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	for (i = 0; i < MAX_IP_CT_PROTO; i++)
 		ip_ct_protos[i] = &ip_conntrack_generic_protocol;
 	/* Sew in builtin protocols. */
 	ip_ct_protos[IPPROTO_TCP] = &ip_conntrack_protocol_tcp;
 	ip_ct_protos[IPPROTO_UDP] = &ip_conntrack_protocol_udp;
 	ip_ct_protos[IPPROTO_ICMP] = &ip_conntrack_protocol_icmp;
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 
 	for (i = 0; i < ip_conntrack_htable_size; i++)
 		INIT_LIST_HEAD(&ip_conntrack_hash[i]);
diff --git a/net/ipv4/netfilter/ip_conntrack_ftp.c b/net/ipv4/netfilter/ip_conntrack_ftp.c
index dd86503aa78..fea6dd2a00b 100644
--- a/net/ipv4/netfilter/ip_conntrack_ftp.c
+++ b/net/ipv4/netfilter/ip_conntrack_ftp.c
@@ -16,7 +16,6 @@
 #include <net/checksum.h>
 #include <net/tcp.h>
 
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
 #include <linux/moduleparam.h>
@@ -28,7 +27,7 @@ MODULE_DESCRIPTION("ftp connection tracking helper");
 /* This is slow, but it's simple. --RR */
 static char ftp_buffer[65536];
 
-static DECLARE_LOCK(ip_ftp_lock);
+static DEFINE_SPINLOCK(ip_ftp_lock);
 
 #define MAX_PORTS 8
 static int ports[MAX_PORTS];
@@ -319,7 +318,7 @@ static int help(struct sk_buff **pskb,
 	}
 	datalen = (*pskb)->len - dataoff;
 
-	LOCK_BH(&ip_ftp_lock);
+	spin_lock_bh(&ip_ftp_lock);
 	fb_ptr = skb_header_pointer(*pskb, dataoff,
 				    (*pskb)->len - dataoff, ftp_buffer);
 	BUG_ON(fb_ptr == NULL);
@@ -442,7 +441,7 @@ out_update_nl:
 	if (ends_in_nl)
 		update_nl_seq(seq, ct_ftp_info,dir);
  out:
-	UNLOCK_BH(&ip_ftp_lock);
+	spin_unlock_bh(&ip_ftp_lock);
 	return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_conntrack_irc.c b/net/ipv4/netfilter/ip_conntrack_irc.c
index 33cc7348b6e..cd98772cc33 100644
--- a/net/ipv4/netfilter/ip_conntrack_irc.c
+++ b/net/ipv4/netfilter/ip_conntrack_irc.c
@@ -29,7 +29,6 @@
 #include <net/checksum.h>
 #include <net/tcp.h>
 
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_conntrack_irc.h>
 #include <linux/moduleparam.h>
@@ -41,7 +40,7 @@ static int max_dcc_channels = 8;
 static unsigned int dcc_timeout = 300;
 /* This is slow, but it's simple. --RR */
 static char irc_buffer[65536];
-static DECLARE_LOCK(irc_buffer_lock);
+static DEFINE_SPINLOCK(irc_buffer_lock);
 
 unsigned int (*ip_nat_irc_hook)(struct sk_buff **pskb,
 				enum ip_conntrack_info ctinfo,
@@ -141,7 +140,7 @@ static int help(struct sk_buff **pskb,
 	if (dataoff >= (*pskb)->len)
 		return NF_ACCEPT;
 
-	LOCK_BH(&irc_buffer_lock);
+	spin_lock_bh(&irc_buffer_lock);
 	ib_ptr = skb_header_pointer(*pskb, dataoff,
 				    (*pskb)->len - dataoff, irc_buffer);
 	BUG_ON(ib_ptr == NULL);
@@ -237,7 +236,7 @@ static int help(struct sk_buff **pskb,
 	} /* while data < ... */
 
  out:
-	UNLOCK_BH(&irc_buffer_lock);
+	spin_unlock_bh(&irc_buffer_lock);
 	return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
index ff8c34a860f..31d75390bf1 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_sctp.c
@@ -26,7 +26,6 @@
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 #if 0
 #define DEBUGP(format, ...) printk(format, ## __VA_ARGS__)
@@ -35,7 +34,7 @@
 #endif
 
 /* Protects conntrack->proto.sctp */
-static DECLARE_RWLOCK(sctp_lock);
+static DEFINE_RWLOCK(sctp_lock);
 
 /* FIXME: Examine ipfilter's timeouts and conntrack transitions more
    closely.  They're more complex. --RR 
@@ -199,9 +198,9 @@ static int sctp_print_conntrack(struct seq_file *s,
 	DEBUGP(__FUNCTION__);
 	DEBUGP("\n");
 
-	READ_LOCK(&sctp_lock);
+	read_lock_bh(&sctp_lock);
 	state = conntrack->proto.sctp.state;
-	READ_UNLOCK(&sctp_lock);
+	read_unlock_bh(&sctp_lock);
 
 	return seq_printf(s, "%s ", sctp_conntrack_names[state]);
 }
@@ -343,13 +342,13 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 
 	oldsctpstate = newconntrack = SCTP_CONNTRACK_MAX;
 	for_each_sctp_chunk (skb, sch, _sch, offset, count) {
-		WRITE_LOCK(&sctp_lock);
+		write_lock_bh(&sctp_lock);
 
 		/* Special cases of Verification tag check (Sec 8.5.1) */
 		if (sch->type == SCTP_CID_INIT) {
 			/* Sec 8.5.1 (A) */
 			if (sh->vtag != 0) {
-				WRITE_UNLOCK(&sctp_lock);
+				write_unlock_bh(&sctp_lock);
 				return -1;
 			}
 		} else if (sch->type == SCTP_CID_ABORT) {
@@ -357,7 +356,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 			if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])
 				&& !(sh->vtag == conntrack->proto.sctp.vtag
 							[1 - CTINFO2DIR(ctinfo)])) {
-				WRITE_UNLOCK(&sctp_lock);
+				write_unlock_bh(&sctp_lock);
 				return -1;
 			}
 		} else if (sch->type == SCTP_CID_SHUTDOWN_COMPLETE) {
@@ -366,13 +365,13 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 				&& !(sh->vtag == conntrack->proto.sctp.vtag
 							[1 - CTINFO2DIR(ctinfo)] 
 					&& (sch->flags & 1))) {
-				WRITE_UNLOCK(&sctp_lock);
+				write_unlock_bh(&sctp_lock);
 				return -1;
 			}
 		} else if (sch->type == SCTP_CID_COOKIE_ECHO) {
 			/* Sec 8.5.1 (D) */
 			if (!(sh->vtag == conntrack->proto.sctp.vtag[CTINFO2DIR(ctinfo)])) {
-				WRITE_UNLOCK(&sctp_lock);
+				write_unlock_bh(&sctp_lock);
 				return -1;
 			}
 		}
@@ -384,7 +383,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 		if (newconntrack == SCTP_CONNTRACK_MAX) {
 			DEBUGP("ip_conntrack_sctp: Invalid dir=%i ctype=%u conntrack=%u\n",
 			       CTINFO2DIR(ctinfo), sch->type, oldsctpstate);
-			WRITE_UNLOCK(&sctp_lock);
+			write_unlock_bh(&sctp_lock);
 			return -1;
 		}
 
@@ -396,7 +395,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 			ih = skb_header_pointer(skb, offset + sizeof(sctp_chunkhdr_t),
 			                        sizeof(_inithdr), &_inithdr);
 			if (ih == NULL) {
-					WRITE_UNLOCK(&sctp_lock);
+					write_unlock_bh(&sctp_lock);
 					return -1;
 			}
 			DEBUGP("Setting vtag %x for dir %d\n", 
@@ -405,7 +404,7 @@ static int sctp_packet(struct ip_conntrack *conntrack,
 		}
 
 		conntrack->proto.sctp.state = newconntrack;
-		WRITE_UNLOCK(&sctp_lock);
+		write_unlock_bh(&sctp_lock);
 	}
 
 	ip_ct_refresh_acct(conntrack, ctinfo, skb, *sctp_timeouts[newconntrack]);
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
index 721ddbf522b..809dfed766d 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
@@ -36,7 +36,6 @@
 #include <linux/netfilter_ipv4.h>
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 #if 0
 #define DEBUGP printk
@@ -46,7 +45,7 @@
 #endif
 
 /* Protects conntrack->proto.tcp */
-static DECLARE_RWLOCK(tcp_lock);
+static DEFINE_RWLOCK(tcp_lock);
 
 /* "Be conservative in what you do, 
     be liberal in what you accept from others." 
@@ -330,9 +329,9 @@ static int tcp_print_conntrack(struct seq_file *s,
 {
 	enum tcp_conntrack state;
 
-	READ_LOCK(&tcp_lock);
+	read_lock_bh(&tcp_lock);
 	state = conntrack->proto.tcp.state;
-	READ_UNLOCK(&tcp_lock);
+	read_unlock_bh(&tcp_lock);
 
 	return seq_printf(s, "%s ", tcp_conntrack_names[state]);
 }
@@ -738,14 +737,14 @@ void ip_conntrack_tcp_update(struct sk_buff *skb,
 
 	end = segment_seq_plus_len(ntohl(tcph->seq), skb->len, iph, tcph);
 	
-	WRITE_LOCK(&tcp_lock);
+	write_lock_bh(&tcp_lock);
 	/*
 	 * We have to worry for the ack in the reply packet only...
 	 */
 	if (after(end, conntrack->proto.tcp.seen[dir].td_end))
 		conntrack->proto.tcp.seen[dir].td_end = end;
 	conntrack->proto.tcp.last_end = end;
-	WRITE_UNLOCK(&tcp_lock);
+	write_unlock_bh(&tcp_lock);
 	DEBUGP("tcp_update: sender end=%u maxend=%u maxwin=%u scale=%i "
 	       "receiver end=%u maxend=%u maxwin=%u scale=%i\n",
 		sender->td_end, sender->td_maxend, sender->td_maxwin,
@@ -857,7 +856,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 				sizeof(_tcph), &_tcph);
 	BUG_ON(th == NULL);
 	
-	WRITE_LOCK(&tcp_lock);
+	write_lock_bh(&tcp_lock);
 	old_state = conntrack->proto.tcp.state;
 	dir = CTINFO2DIR(ctinfo);
 	index = get_conntrack_index(th);
@@ -879,7 +878,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 			 * that the client cannot but retransmit its SYN and 
 			 * thus initiate a clean new session.
 			 */
-		    	WRITE_UNLOCK(&tcp_lock);
+		    	write_unlock_bh(&tcp_lock);
 			if (LOG_INVALID(IPPROTO_TCP))
 				nf_log_packet(PF_INET, 0, skb, NULL, NULL, 
 					  "ip_ct_tcp: killing out of sync session ");
@@ -894,7 +893,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 		conntrack->proto.tcp.last_end = 
 		    segment_seq_plus_len(ntohl(th->seq), skb->len, iph, th);
 		
-		WRITE_UNLOCK(&tcp_lock);
+		write_unlock_bh(&tcp_lock);
 		if (LOG_INVALID(IPPROTO_TCP))
 			nf_log_packet(PF_INET, 0, skb, NULL, NULL, 
 				  "ip_ct_tcp: invalid packet ignored ");
@@ -904,7 +903,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 		DEBUGP("ip_ct_tcp: Invalid dir=%i index=%u ostate=%u\n",
 		       dir, get_conntrack_index(th),
 		       old_state);
-		WRITE_UNLOCK(&tcp_lock);
+		write_unlock_bh(&tcp_lock);
 		if (LOG_INVALID(IPPROTO_TCP))
 			nf_log_packet(PF_INET, 0, skb, NULL, NULL, 
 				  "ip_ct_tcp: invalid state ");
@@ -918,13 +917,13 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 		    	     conntrack->proto.tcp.seen[dir].td_end)) {	
 		    	/* Attempt to reopen a closed connection.
 		    	* Delete this connection and look up again. */
-		    	WRITE_UNLOCK(&tcp_lock);
+		    	write_unlock_bh(&tcp_lock);
 		    	if (del_timer(&conntrack->timeout))
 		    		conntrack->timeout.function((unsigned long)
 		    					    conntrack);
 		    	return -NF_REPEAT;
 		} else {
-			WRITE_UNLOCK(&tcp_lock);
+			write_unlock_bh(&tcp_lock);
 			if (LOG_INVALID(IPPROTO_TCP))
 				nf_log_packet(PF_INET, 0, skb, NULL, NULL,
 				              "ip_ct_tcp: invalid SYN");
@@ -949,7 +948,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 
 	if (!tcp_in_window(&conntrack->proto.tcp, dir, index, 
 			   skb, iph, th)) {
-		WRITE_UNLOCK(&tcp_lock);
+		write_unlock_bh(&tcp_lock);
 		return -NF_ACCEPT;
 	}
     in_window:
@@ -972,7 +971,7 @@ static int tcp_packet(struct ip_conntrack *conntrack,
 	timeout = conntrack->proto.tcp.retrans >= ip_ct_tcp_max_retrans
 		  && *tcp_timeouts[new_state] > ip_ct_tcp_timeout_max_retrans
 		  ? ip_ct_tcp_timeout_max_retrans : *tcp_timeouts[new_state];
-	WRITE_UNLOCK(&tcp_lock);
+	write_unlock_bh(&tcp_lock);
 
 	if (!test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)) {
 		/* If only reply is a RST, we can consider ourselves not to
diff --git a/net/ipv4/netfilter/ip_conntrack_proto_udp.c b/net/ipv4/netfilter/ip_conntrack_proto_udp.c
index 5bc28a22462..8c1eaba098d 100644
--- a/net/ipv4/netfilter/ip_conntrack_proto_udp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_udp.c
@@ -120,6 +120,7 @@ static int udp_error(struct sk_buff *skb, enum ip_conntrack_info *ctinfo,
 	 * and moreover root might send raw packets.
 	 * FIXME: Source route IP option packets --RR */
 	if (hooknum == NF_IP_PRE_ROUTING
+	    && skb->ip_summed != CHECKSUM_UNNECESSARY
 	    && csum_tcpudp_magic(iph->saddr, iph->daddr, udplen, IPPROTO_UDP,
 			         skb->ip_summed == CHECKSUM_HW ? skb->csum
 			      	 : skb_checksum(skb, iph->ihl*4, udplen, 0))) {
diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index bc59f7b3980..42dc9510287 100644
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c
@@ -28,8 +28,8 @@
 #include <net/checksum.h>
 #include <net/ip.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_conntrack_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_conntrack_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
@@ -119,7 +119,7 @@ static struct list_head *ct_get_idx(struct seq_file *seq, loff_t pos)
 
 static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
 {
-	READ_LOCK(&ip_conntrack_lock);
+	read_lock_bh(&ip_conntrack_lock);
 	return ct_get_idx(seq, *pos);
 }
 
@@ -131,7 +131,7 @@ static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
   
 static void ct_seq_stop(struct seq_file *s, void *v)
 {
-	READ_UNLOCK(&ip_conntrack_lock);
+	read_unlock_bh(&ip_conntrack_lock);
 }
  
 static int ct_seq_show(struct seq_file *s, void *v)
@@ -140,7 +140,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
 	const struct ip_conntrack *conntrack = tuplehash_to_ctrack(hash);
 	struct ip_conntrack_protocol *proto;
 
-	MUST_BE_READ_LOCKED(&ip_conntrack_lock);
+	ASSERT_READ_LOCK(&ip_conntrack_lock);
 	IP_NF_ASSERT(conntrack);
 
 	/* we only want to print DIR_ORIGINAL */
@@ -239,7 +239,7 @@ static void *exp_seq_start(struct seq_file *s, loff_t *pos)
 
 	/* strange seq_file api calls stop even if we fail,
 	 * thus we need to grab lock since stop unlocks */
-	READ_LOCK(&ip_conntrack_lock);
+	read_lock_bh(&ip_conntrack_lock);
 
 	if (list_empty(e))
 		return NULL;
@@ -267,7 +267,7 @@ static void *exp_seq_next(struct seq_file *s, void *v, loff_t *pos)
 
 static void exp_seq_stop(struct seq_file *s, void *v)
 {
-	READ_UNLOCK(&ip_conntrack_lock);
+	read_unlock_bh(&ip_conntrack_lock);
 }
 
 static int exp_seq_show(struct seq_file *s, void *v)
@@ -921,22 +921,22 @@ int ip_conntrack_protocol_register(struct ip_conntrack_protocol *proto)
 {
 	int ret = 0;
 
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	if (ip_ct_protos[proto->proto] != &ip_conntrack_generic_protocol) {
 		ret = -EBUSY;
 		goto out;
 	}
 	ip_ct_protos[proto->proto] = proto;
  out:
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 	return ret;
 }
 
 void ip_conntrack_protocol_unregister(struct ip_conntrack_protocol *proto)
 {
-	WRITE_LOCK(&ip_conntrack_lock);
+	write_lock_bh(&ip_conntrack_lock);
 	ip_ct_protos[proto->proto] = &ip_conntrack_generic_protocol;
-	WRITE_UNLOCK(&ip_conntrack_lock);
+	write_unlock_bh(&ip_conntrack_lock);
 	
 	/* Somebody could be still looking at the proto in bh. */
 	synchronize_net();
diff --git a/net/ipv4/netfilter/ip_nat_core.c b/net/ipv4/netfilter/ip_nat_core.c
index 9fc6f93af0d..739b6dde1c8 100644
--- a/net/ipv4/netfilter/ip_nat_core.c
+++ b/net/ipv4/netfilter/ip_nat_core.c
@@ -22,8 +22,8 @@
 #include <linux/udp.h>
 #include <linux/jhash.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_core.h>
@@ -41,7 +41,7 @@
 #define DEBUGP(format, args...)
 #endif
 
-DECLARE_RWLOCK(ip_nat_lock);
+DEFINE_RWLOCK(ip_nat_lock);
 
 /* Calculated at init based on memory size */
 static unsigned int ip_nat_htable_size;
@@ -65,9 +65,9 @@ static void ip_nat_cleanup_conntrack(struct ip_conntrack *conn)
 	if (!(conn->status & IPS_NAT_DONE_MASK))
 		return;
 
-	WRITE_LOCK(&ip_nat_lock);
+	write_lock_bh(&ip_nat_lock);
 	list_del(&conn->nat.info.bysource);
-	WRITE_UNLOCK(&ip_nat_lock);
+	write_unlock_bh(&ip_nat_lock);
 }
 
 /* We do checksum mangling, so if they were wrong before they're still
@@ -142,7 +142,7 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
 	unsigned int h = hash_by_src(tuple);
 	struct ip_conntrack *ct;
 
-	READ_LOCK(&ip_nat_lock);
+	read_lock_bh(&ip_nat_lock);
 	list_for_each_entry(ct, &bysource[h], nat.info.bysource) {
 		if (same_src(ct, tuple)) {
 			/* Copy source part from reply tuple. */
@@ -151,12 +151,12 @@ find_appropriate_src(const struct ip_conntrack_tuple *tuple,
 			result->dst = tuple->dst;
 
 			if (in_range(result, range)) {
-				READ_UNLOCK(&ip_nat_lock);
+				read_unlock_bh(&ip_nat_lock);
 				return 1;
 			}
 		}
 	}
-	READ_UNLOCK(&ip_nat_lock);
+	read_unlock_bh(&ip_nat_lock);
 	return 0;
 }
 
@@ -297,9 +297,9 @@ ip_nat_setup_info(struct ip_conntrack *conntrack,
 		unsigned int srchash
 			= hash_by_src(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
 				      .tuple);
-		WRITE_LOCK(&ip_nat_lock);
+		write_lock_bh(&ip_nat_lock);
 		list_add(&info->bysource, &bysource[srchash]);
-		WRITE_UNLOCK(&ip_nat_lock);
+		write_unlock_bh(&ip_nat_lock);
 	}
 
 	/* It's done. */
@@ -474,23 +474,23 @@ int ip_nat_protocol_register(struct ip_nat_protocol *proto)
 {
 	int ret = 0;
 
-	WRITE_LOCK(&ip_nat_lock);
+	write_lock_bh(&ip_nat_lock);
 	if (ip_nat_protos[proto->protonum] != &ip_nat_unknown_protocol) {
 		ret = -EBUSY;
 		goto out;
 	}
 	ip_nat_protos[proto->protonum] = proto;
  out:
-	WRITE_UNLOCK(&ip_nat_lock);
+	write_unlock_bh(&ip_nat_lock);
 	return ret;
 }
 
 /* Noone stores the protocol anywhere; simply delete it. */
 void ip_nat_protocol_unregister(struct ip_nat_protocol *proto)
 {
-	WRITE_LOCK(&ip_nat_lock);
+	write_lock_bh(&ip_nat_lock);
 	ip_nat_protos[proto->protonum] = &ip_nat_unknown_protocol;
-	WRITE_UNLOCK(&ip_nat_lock);
+	write_unlock_bh(&ip_nat_lock);
 
 	/* Someone could be still looking at the proto in a bh. */
 	synchronize_net();
@@ -509,13 +509,13 @@ int __init ip_nat_init(void)
 		return -ENOMEM;
 
 	/* Sew in builtin protocols. */
-	WRITE_LOCK(&ip_nat_lock);
+	write_lock_bh(&ip_nat_lock);
 	for (i = 0; i < MAX_IP_NAT_PROTO; i++)
 		ip_nat_protos[i] = &ip_nat_unknown_protocol;
 	ip_nat_protos[IPPROTO_TCP] = &ip_nat_protocol_tcp;
 	ip_nat_protos[IPPROTO_UDP] = &ip_nat_protocol_udp;
 	ip_nat_protos[IPPROTO_ICMP] = &ip_nat_protocol_icmp;
-	WRITE_UNLOCK(&ip_nat_lock);
+	write_unlock_bh(&ip_nat_lock);
 
 	for (i = 0; i < ip_nat_htable_size; i++) {
 		INIT_LIST_HEAD(&bysource[i]);
diff --git a/net/ipv4/netfilter/ip_nat_helper.c b/net/ipv4/netfilter/ip_nat_helper.c
index 1637b96d8c0..158f34f32c0 100644
--- a/net/ipv4/netfilter/ip_nat_helper.c
+++ b/net/ipv4/netfilter/ip_nat_helper.c
@@ -28,8 +28,8 @@
 #include <net/tcp.h>
 #include <net/udp.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
@@ -47,7 +47,7 @@
 #define DUMP_OFFSET(x)
 #endif
 
-static DECLARE_LOCK(ip_nat_seqofs_lock);
+static DEFINE_SPINLOCK(ip_nat_seqofs_lock);
 
 /* Setup TCP sequence correction given this change at this sequence */
 static inline void 
@@ -70,7 +70,7 @@ adjust_tcp_sequence(u32 seq,
 	DEBUGP("ip_nat_resize_packet: Seq_offset before: ");
 	DUMP_OFFSET(this_way);
 
-	LOCK_BH(&ip_nat_seqofs_lock);
+	spin_lock_bh(&ip_nat_seqofs_lock);
 
 	/* SYN adjust. If it's uninitialized, or this is after last
 	 * correction, record it: we don't handle more than one
@@ -82,7 +82,7 @@ adjust_tcp_sequence(u32 seq,
 		    this_way->offset_before = this_way->offset_after;
 		    this_way->offset_after += sizediff;
 	}
-	UNLOCK_BH(&ip_nat_seqofs_lock);
+	spin_unlock_bh(&ip_nat_seqofs_lock);
 
 	DEBUGP("ip_nat_resize_packet: Seq_offset after: ");
 	DUMP_OFFSET(this_way);
@@ -142,9 +142,6 @@ static int enlarge_skb(struct sk_buff **pskb, unsigned int extra)
 	/* Transfer socket to new skb. */
 	if ((*pskb)->sk)
 		skb_set_owner_w(nskb, (*pskb)->sk);
-#ifdef CONFIG_NETFILTER_DEBUG
-	nskb->nf_debug = (*pskb)->nf_debug;
-#endif
 	kfree_skb(*pskb);
 	*pskb = nskb;
 	return 1;
diff --git a/net/ipv4/netfilter/ip_nat_rule.c b/net/ipv4/netfilter/ip_nat_rule.c
index 581f097f5a2..60d70fa41a1 100644
--- a/net/ipv4/netfilter/ip_nat_rule.c
+++ b/net/ipv4/netfilter/ip_nat_rule.c
@@ -19,8 +19,8 @@
 #include <net/route.h>
 #include <linux/bitops.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ip_nat.h>
diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c
index 79f56f662b3..bc59d0d6e89 100644
--- a/net/ipv4/netfilter/ip_nat_standalone.c
+++ b/net/ipv4/netfilter/ip_nat_standalone.c
@@ -31,8 +31,8 @@
 #include <net/checksum.h>
 #include <linux/spinlock.h>
 
-#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_nat_lock)
-#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_nat_lock)
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
 
 #include <linux/netfilter_ipv4/ip_nat.h>
 #include <linux/netfilter_ipv4/ip_nat_rule.h>
@@ -373,7 +373,6 @@ static int init_or_cleanup(int init)
  cleanup_rule_init:
 	ip_nat_rule_cleanup();
  cleanup_nothing:
-	MUST_BE_READ_WRITE_UNLOCKED(&ip_nat_lock);
 	return ret;
 }
 
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 8a54f92b849..c88dfcd38c5 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -67,7 +67,6 @@ static DECLARE_MUTEX(ipt_mutex);
 /* Must have mutex */
 #define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 0f12e3a3dc7..dc4362b57cf 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -29,7 +29,6 @@
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_CLUSTERIP.h>
 #include <linux/netfilter_ipv4/ip_conntrack.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 #define CLUSTERIP_VERSION "0.6"
 
@@ -41,6 +40,8 @@
 #define DEBUGP
 #endif
 
+#define ASSERT_READ_LOCK(x)
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
 MODULE_DESCRIPTION("iptables target for CLUSTERIP");
@@ -67,7 +68,7 @@ static LIST_HEAD(clusterip_configs);
 
 /* clusterip_lock protects the clusterip_configs list _AND_ the configurable
  * data within all structurses (num_local_nodes, local_nodes[]) */
-static DECLARE_RWLOCK(clusterip_lock);
+static DEFINE_RWLOCK(clusterip_lock);
 
 #ifdef CONFIG_PROC_FS
 static struct file_operations clusterip_proc_fops;
@@ -82,9 +83,9 @@ clusterip_config_get(struct clusterip_config *c) {
 static inline void
 clusterip_config_put(struct clusterip_config *c) {
 	if (atomic_dec_and_test(&c->refcount)) {
-		WRITE_LOCK(&clusterip_lock);
+		write_lock_bh(&clusterip_lock);
 		list_del(&c->list);
-		WRITE_UNLOCK(&clusterip_lock);
+		write_unlock_bh(&clusterip_lock);
 		dev_mc_delete(c->dev, c->clustermac, ETH_ALEN, 0);
 		dev_put(c->dev);
 		kfree(c);
@@ -97,7 +98,7 @@ __clusterip_config_find(u_int32_t clusterip)
 {
 	struct list_head *pos;
 
-	MUST_BE_READ_LOCKED(&clusterip_lock);
+	ASSERT_READ_LOCK(&clusterip_lock);
 	list_for_each(pos, &clusterip_configs) {
 		struct clusterip_config *c = list_entry(pos, 
 					struct clusterip_config, list);
@@ -114,14 +115,14 @@ clusterip_config_find_get(u_int32_t clusterip)
 {
 	struct clusterip_config *c;
 
-	READ_LOCK(&clusterip_lock);
+	read_lock_bh(&clusterip_lock);
 	c = __clusterip_config_find(clusterip);
 	if (!c) {
-		READ_UNLOCK(&clusterip_lock);
+		read_unlock_bh(&clusterip_lock);
 		return NULL;
 	}
 	atomic_inc(&c->refcount);
-	READ_UNLOCK(&clusterip_lock);
+	read_unlock_bh(&clusterip_lock);
 
 	return c;
 }
@@ -160,9 +161,9 @@ clusterip_config_init(struct ipt_clusterip_tgt_info *i, u_int32_t ip,
 	c->pde->data = c;
 #endif
 
-	WRITE_LOCK(&clusterip_lock);
+	write_lock_bh(&clusterip_lock);
 	list_add(&c->list, &clusterip_configs);
-	WRITE_UNLOCK(&clusterip_lock);
+	write_unlock_bh(&clusterip_lock);
 
 	return c;
 }
@@ -172,25 +173,25 @@ clusterip_add_node(struct clusterip_config *c, u_int16_t nodenum)
 {
 	int i;
 
-	WRITE_LOCK(&clusterip_lock);
+	write_lock_bh(&clusterip_lock);
 
 	if (c->num_local_nodes >= CLUSTERIP_MAX_NODES
 	    || nodenum > CLUSTERIP_MAX_NODES) {
-		WRITE_UNLOCK(&clusterip_lock);
+		write_unlock_bh(&clusterip_lock);
 		return 1;
 	}
 
 	/* check if we alrady have this number in our array */
 	for (i = 0; i < c->num_local_nodes; i++) {
 		if (c->local_nodes[i] == nodenum) {
-			WRITE_UNLOCK(&clusterip_lock);
+			write_unlock_bh(&clusterip_lock);
 			return 1;
 		}
 	}
 
 	c->local_nodes[c->num_local_nodes++] = nodenum;
 
-	WRITE_UNLOCK(&clusterip_lock);
+	write_unlock_bh(&clusterip_lock);
 	return 0;
 }
 
@@ -199,10 +200,10 @@ clusterip_del_node(struct clusterip_config *c, u_int16_t nodenum)
 {
 	int i;
 
-	WRITE_LOCK(&clusterip_lock);
+	write_lock_bh(&clusterip_lock);
 
 	if (c->num_local_nodes <= 1 || nodenum > CLUSTERIP_MAX_NODES) {
-		WRITE_UNLOCK(&clusterip_lock);
+		write_unlock_bh(&clusterip_lock);
 		return 1;
 	}
 		
@@ -211,12 +212,12 @@ clusterip_del_node(struct clusterip_config *c, u_int16_t nodenum)
 			int size = sizeof(u_int16_t)*(c->num_local_nodes-(i+1));
 			memmove(&c->local_nodes[i], &c->local_nodes[i+1], size);
 			c->num_local_nodes--;
-			WRITE_UNLOCK(&clusterip_lock);
+			write_unlock_bh(&clusterip_lock);
 			return 0;
 		}
 	}
 
-	WRITE_UNLOCK(&clusterip_lock);
+	write_unlock_bh(&clusterip_lock);
 	return 1;
 }
 
@@ -286,21 +287,21 @@ clusterip_responsible(struct clusterip_config *config, u_int32_t hash)
 {
 	int i;
 
-	READ_LOCK(&clusterip_lock);
+	read_lock_bh(&clusterip_lock);
 
 	if (config->num_local_nodes == 0) {
-		READ_UNLOCK(&clusterip_lock);
+		read_unlock_bh(&clusterip_lock);
 		return 0;
 	}
 
 	for (i = 0; i < config->num_local_nodes; i++) {
 		if (config->local_nodes[i] == hash) {
-			READ_UNLOCK(&clusterip_lock);
+			read_unlock_bh(&clusterip_lock);
 			return 1;
 		}
 	}
 
-	READ_UNLOCK(&clusterip_lock);
+	read_unlock_bh(&clusterip_lock);
 
 	return 0;
 }
@@ -578,7 +579,7 @@ static void *clusterip_seq_start(struct seq_file *s, loff_t *pos)
 	struct clusterip_config *c = pde->data;
 	unsigned int *nodeidx;
 
-	READ_LOCK(&clusterip_lock);
+	read_lock_bh(&clusterip_lock);
 	if (*pos >= c->num_local_nodes)
 		return NULL;
 
@@ -608,7 +609,7 @@ static void clusterip_seq_stop(struct seq_file *s, void *v)
 {
 	kfree(v);
 
-	READ_UNLOCK(&clusterip_lock);
+	read_unlock_bh(&clusterip_lock);
 }
 
 static int clusterip_seq_show(struct seq_file *s, void *v)
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 57e9f6cf1c3..91e74502c3d 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -33,7 +33,7 @@ MODULE_DESCRIPTION("iptables MASQUERADE target module");
 #endif
 
 /* Lock protects masq region inside conntrack */
-static DECLARE_RWLOCK(masq_lock);
+static DEFINE_RWLOCK(masq_lock);
 
 /* FIXME: Multiple targets. --RR */
 static int
@@ -103,9 +103,9 @@ masquerade_target(struct sk_buff **pskb,
 		return NF_DROP;
 	}
 
-	WRITE_LOCK(&masq_lock);
+	write_lock_bh(&masq_lock);
 	ct->nat.masq_index = out->ifindex;
-	WRITE_UNLOCK(&masq_lock);
+	write_unlock_bh(&masq_lock);
 
 	/* Transfer from original range. */
 	newrange = ((struct ip_nat_range)
@@ -122,9 +122,9 @@ device_cmp(struct ip_conntrack *i, void *ifindex)
 {
 	int ret;
 
-	READ_LOCK(&masq_lock);
+	read_lock_bh(&masq_lock);
 	ret = (i->nat.masq_index == (int)(long)ifindex);
-	READ_UNLOCK(&masq_lock);
+	read_unlock_bh(&masq_lock);
 
 	return ret;
 }
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 266d6497928..91569644602 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -104,10 +104,12 @@ static inline struct rtable *route_reverse(struct sk_buff *skb,
 static void send_reset(struct sk_buff *oldskb, int hook)
 {
 	struct sk_buff *nskb;
+	struct iphdr *iph = oldskb->nh.iph;
 	struct tcphdr _otcph, *oth, *tcph;
 	struct rtable *rt;
 	u_int16_t tmp_port;
 	u_int32_t tmp_addr;
+	unsigned int tcplen;
 	int needs_ack;
 	int hh_len;
 
@@ -124,7 +126,16 @@ static void send_reset(struct sk_buff *oldskb, int hook)
 	if (oth->rst)
 		return;
 
-	/* FIXME: Check checksum --RR */
+	/* Check checksum */
+	tcplen = oldskb->len - iph->ihl * 4;
+	if (((hook != NF_IP_LOCAL_IN && oldskb->ip_summed != CHECKSUM_HW) ||
+	     (hook == NF_IP_LOCAL_IN &&
+	      oldskb->ip_summed != CHECKSUM_UNNECESSARY)) &&
+	    csum_tcpudp_magic(iph->saddr, iph->daddr, tcplen, IPPROTO_TCP,
+	                      oldskb->ip_summed == CHECKSUM_HW ? oldskb->csum :
+	                      skb_checksum(oldskb, iph->ihl * 4, tcplen, 0)))
+		return;
+
 	if ((rt = route_reverse(oldskb, oth, hook)) == NULL)
 		return;
 
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 6f2cefbe16c..52a0076302a 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -56,7 +56,6 @@
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_ULOG.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <net/sock.h>
 #include <linux/bitops.h>
 
@@ -99,8 +98,8 @@ typedef struct {
 
 static ulog_buff_t ulog_buffers[ULOG_MAXNLGROUPS];	/* array of buffers */
 
-static struct sock *nflognl;	/* our socket */
-static DECLARE_LOCK(ulog_lock);	/* spinlock */
+static struct sock *nflognl;		/* our socket */
+static DEFINE_SPINLOCK(ulog_lock);	/* spinlock */
 
 /* send one ulog_buff_t to userspace */
 static void ulog_send(unsigned int nlgroupnum)
@@ -135,9 +134,9 @@ static void ulog_timer(unsigned long data)
 
 	/* lock to protect against somebody modifying our structure
 	 * from ipt_ulog_target at the same time */
-	LOCK_BH(&ulog_lock);
+	spin_lock_bh(&ulog_lock);
 	ulog_send(data);
-	UNLOCK_BH(&ulog_lock);
+	spin_unlock_bh(&ulog_lock);
 }
 
 static struct sk_buff *ulog_alloc_skb(unsigned int size)
@@ -193,7 +192,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
 
 	ub = &ulog_buffers[groupnum];
 	
-	LOCK_BH(&ulog_lock);
+	spin_lock_bh(&ulog_lock);
 
 	if (!ub->skb) {
 		if (!(ub->skb = ulog_alloc_skb(size)))
@@ -278,7 +277,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
 		ulog_send(groupnum);
 	}
 
-	UNLOCK_BH(&ulog_lock);
+	spin_unlock_bh(&ulog_lock);
 
 	return;
 
@@ -288,7 +287,7 @@ nlmsg_failure:
 alloc_failure:
 	PRINTR("ipt_ULOG: Error building netlink message\n");
 
-	UNLOCK_BH(&ulog_lock);
+	spin_unlock_bh(&ulog_lock);
 }
 
 static unsigned int ipt_ulog_target(struct sk_buff **pskb,
diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c
index f1937190cd7..564b49bfebc 100644
--- a/net/ipv4/netfilter/ipt_hashlimit.c
+++ b/net/ipv4/netfilter/ipt_hashlimit.c
@@ -37,7 +37,6 @@
 
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_hashlimit.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
 
 /* FIXME: this is just for IP_NF_ASSERRT */
 #include <linux/netfilter_ipv4/ip_conntrack.h>
@@ -92,7 +91,7 @@ struct ipt_hashlimit_htable {
 	struct hlist_head hash[0];	/* hashtable itself */
 };
 
-static DECLARE_LOCK(hashlimit_lock);	/* protects htables list */
+static DEFINE_SPINLOCK(hashlimit_lock);	/* protects htables list */
 static DECLARE_MUTEX(hlimit_mutex);	/* additional checkentry protection */
 static HLIST_HEAD(hashlimit_htables);
 static kmem_cache_t *hashlimit_cachep;
@@ -233,9 +232,9 @@ static int htable_create(struct ipt_hashlimit_info *minfo)
 	hinfo->timer.function = htable_gc;
 	add_timer(&hinfo->timer);
 
-	LOCK_BH(&hashlimit_lock);
+	spin_lock_bh(&hashlimit_lock);
 	hlist_add_head(&hinfo->node, &hashlimit_htables);
-	UNLOCK_BH(&hashlimit_lock);
+	spin_unlock_bh(&hashlimit_lock);
 
 	return 0;
 }
@@ -301,15 +300,15 @@ static struct ipt_hashlimit_htable *htable_find_get(char *name)
 	struct ipt_hashlimit_htable *hinfo;
 	struct hlist_node *pos;
 
-	LOCK_BH(&hashlimit_lock);
+	spin_lock_bh(&hashlimit_lock);
 	hlist_for_each_entry(hinfo, pos, &hashlimit_htables, node) {
 		if (!strcmp(name, hinfo->pde->name)) {
 			atomic_inc(&hinfo->use);
-			UNLOCK_BH(&hashlimit_lock);
+			spin_unlock_bh(&hashlimit_lock);
 			return hinfo;
 		}
 	}
-	UNLOCK_BH(&hashlimit_lock);
+	spin_unlock_bh(&hashlimit_lock);
 
 	return NULL;
 }
@@ -317,9 +316,9 @@ static struct ipt_hashlimit_htable *htable_find_get(char *name)
 static void htable_put(struct ipt_hashlimit_htable *hinfo)
 {
 	if (atomic_dec_and_test(&hinfo->use)) {
-		LOCK_BH(&hashlimit_lock);
+		spin_lock_bh(&hashlimit_lock);
 		hlist_del(&hinfo->node);
-		UNLOCK_BH(&hashlimit_lock);
+		spin_unlock_bh(&hashlimit_lock);
 		htable_destroy(hinfo);
 	}
 }
diff --git a/net/ipv4/netfilter/ipt_helper.c b/net/ipv4/netfilter/ipt_helper.c
index 33fdf364d3d..3e7dd014de4 100644
--- a/net/ipv4/netfilter/ipt_helper.c
+++ b/net/ipv4/netfilter/ipt_helper.c
@@ -53,7 +53,7 @@ match(const struct sk_buff *skb,
 		return ret;
 	}
 
-	READ_LOCK(&ip_conntrack_lock);
+	read_lock_bh(&ip_conntrack_lock);
 	if (!ct->master->helper) {
 		DEBUGP("ipt_helper: master ct %p has no helper\n", 
 			exp->expectant);
@@ -69,7 +69,7 @@ match(const struct sk_buff *skb,
 		ret ^= !strncmp(ct->master->helper->name, info->name, 
 		                strlen(ct->master->helper->name));
 out_unlock:
-	READ_UNLOCK(&ip_conntrack_lock);
+	read_unlock_bh(&ip_conntrack_lock);
 	return ret;
 }
 
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 47a30c3188e..14f5c53235f 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -695,7 +695,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 
 		if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
 			if (onlink == 0) {
-				ip6_del_rt(rt, NULL, NULL);
+				ip6_del_rt(rt, NULL, NULL, NULL);
 				rt = NULL;
 			} else if (!(rt->rt6i_flags & RTF_EXPIRES)) {
 				rt->rt6i_expires = expires;
@@ -1340,7 +1340,7 @@ addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
 	if (dev->type == ARPHRD_SIT && (dev->flags&IFF_POINTOPOINT))
 		rtmsg.rtmsg_flags |= RTF_NONEXTHOP;
 
-	ip6_route_add(&rtmsg, NULL, NULL);
+	ip6_route_add(&rtmsg, NULL, NULL, NULL);
 }
 
 /* Create "default" multicast route to the interface */
@@ -1357,7 +1357,7 @@ static void addrconf_add_mroute(struct net_device *dev)
 	rtmsg.rtmsg_ifindex = dev->ifindex;
 	rtmsg.rtmsg_flags = RTF_UP;
 	rtmsg.rtmsg_type = RTMSG_NEWROUTE;
-	ip6_route_add(&rtmsg, NULL, NULL);
+	ip6_route_add(&rtmsg, NULL, NULL, NULL);
 }
 
 static void sit_route_add(struct net_device *dev)
@@ -1374,7 +1374,7 @@ static void sit_route_add(struct net_device *dev)
 	rtmsg.rtmsg_flags	= RTF_UP|RTF_NONEXTHOP;
 	rtmsg.rtmsg_ifindex	= dev->ifindex;
 
-	ip6_route_add(&rtmsg, NULL, NULL);
+	ip6_route_add(&rtmsg, NULL, NULL, NULL);
 }
 
 static void addrconf_add_lroute(struct net_device *dev)
@@ -1467,7 +1467,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 		if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
 			if (rt->rt6i_flags&RTF_EXPIRES) {
 				if (valid_lft == 0) {
-					ip6_del_rt(rt, NULL, NULL);
+					ip6_del_rt(rt, NULL, NULL, NULL);
 					rt = NULL;
 				} else {
 					rt->rt6i_expires = rt_expires;
@@ -3094,7 +3094,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 	switch (event) {
 	case RTM_NEWADDR:
 		dst_hold(&ifp->rt->u.dst);
-		if (ip6_ins_rt(ifp->rt, NULL, NULL))
+		if (ip6_ins_rt(ifp->rt, NULL, NULL, NULL))
 			dst_release(&ifp->rt->u.dst);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
@@ -3104,7 +3104,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 			addrconf_leave_anycast(ifp);
 		addrconf_leave_solict(ifp->idev, &ifp->addr);
 		dst_hold(&ifp->rt->u.dst);
-		if (ip6_del_rt(ifp->rt, NULL, NULL))
+		if (ip6_del_rt(ifp->rt, NULL, NULL, NULL))
 			dst_free(&ifp->rt->u.dst);
 		else
 			dst_release(&ifp->rt->u.dst);
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 5d22ca3cca2..6b729404723 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -337,7 +337,7 @@ int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr)
 	write_unlock_bh(&idev->lock);
 
 	dst_hold(&rt->u.dst);
-	if (ip6_ins_rt(rt, NULL, NULL))
+	if (ip6_ins_rt(rt, NULL, NULL, NULL))
 		dst_release(&rt->u.dst);
 
 	addrconf_join_solict(dev, &aca->aca_addr);
@@ -380,7 +380,7 @@ int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr)
 	addrconf_leave_solict(idev, &aca->aca_addr);
 
 	dst_hold(&aca->aca_rt->u.dst);
-	if (ip6_del_rt(aca->aca_rt, NULL, NULL))
+	if (ip6_del_rt(aca->aca_rt, NULL, NULL, NULL))
 		dst_free(&aca->aca_rt->u.dst);
 	else
 		dst_release(&aca->aca_rt->u.dst);
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 405740b75ab..1b354aa9793 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -394,7 +394,7 @@ insert_above:
  */
 
 static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
-    struct nlmsghdr *nlh)
+		struct nlmsghdr *nlh,  struct netlink_skb_parms *req)
 {
 	struct rt6_info *iter = NULL;
 	struct rt6_info **ins;
@@ -449,7 +449,7 @@ out:
 	*ins = rt;
 	rt->rt6i_node = fn;
 	atomic_inc(&rt->rt6i_ref);
-	inet6_rt_notify(RTM_NEWROUTE, rt, nlh);
+	inet6_rt_notify(RTM_NEWROUTE, rt, nlh, req);
 	rt6_stats.fib_rt_entries++;
 
 	if ((fn->fn_flags & RTN_RTINFO) == 0) {
@@ -479,7 +479,8 @@ void fib6_force_start_gc(void)
  *	with source addr info in sub-trees
  */
 
-int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int fib6_add(struct fib6_node *root, struct rt6_info *rt, 
+		struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
 	struct fib6_node *fn;
 	int err = -ENOMEM;
@@ -552,7 +553,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nlmsghdr *nlh,
 	}
 #endif
 
-	err = fib6_add_rt2node(fn, rt, nlh);
+	err = fib6_add_rt2node(fn, rt, nlh, req);
 
 	if (err == 0) {
 		fib6_start_gc(rt);
@@ -859,7 +860,7 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
 }
 
 static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
-    struct nlmsghdr *nlh, void *_rtattr)
+    struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
 	struct fib6_walker_t *w;
 	struct rt6_info *rt = *rtp;
@@ -915,11 +916,11 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
 		if (atomic_read(&rt->rt6i_ref) != 1) BUG();
 	}
 
-	inet6_rt_notify(RTM_DELROUTE, rt, nlh);
+	inet6_rt_notify(RTM_DELROUTE, rt, nlh, req);
 	rt6_release(rt);
 }
 
-int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
 	struct fib6_node *fn = rt->rt6i_node;
 	struct rt6_info **rtp;
@@ -944,7 +945,7 @@ int fib6_del(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
 
 	for (rtp = &fn->leaf; *rtp; rtp = &(*rtp)->u.next) {
 		if (*rtp == rt) {
-			fib6_del_route(fn, rtp, nlh, _rtattr);
+			fib6_del_route(fn, rtp, nlh, _rtattr, req);
 			return 0;
 		}
 	}
@@ -1073,7 +1074,7 @@ static int fib6_clean_node(struct fib6_walker_t *w)
 		res = c->func(rt, c->arg);
 		if (res < 0) {
 			w->leaf = rt;
-			res = fib6_del(rt, NULL, NULL);
+			res = fib6_del(rt, NULL, NULL, NULL);
 			if (res) {
 #if RT6_DEBUG >= 2
 				printk(KERN_DEBUG "fib6_clean_node: del failed: rt=%p@%p err=%d\n", rt, rt->rt6i_node, res);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index b78a5358680..06e7cdaeedc 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -484,9 +484,6 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->nf_bridge = from->nf_bridge;
 	nf_bridge_get(to->nf_bridge);
 #endif
-#ifdef CONFIG_NETFILTER_DEBUG
-	to->nf_debug = from->nf_debug;
-#endif
 #endif
 }
 
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 279ab86be66..f3ef4c38d31 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -423,11 +423,12 @@ done:
 			psin6 = (struct sockaddr_in6 *)&greqs.gsr_group;
 			retv = ipv6_sock_mc_join(sk, greqs.gsr_interface,
 				&psin6->sin6_addr);
-			if (retv)
+			/* prior join w/ different source is ok */
+			if (retv && retv != -EADDRINUSE)
 				break;
 			omode = MCAST_INCLUDE;
 			add = 1;
-		} else /*IP_DROP_SOURCE_MEMBERSHIP */ {
+		} else /* MCAST_LEAVE_SOURCE_GROUP */ {
 			omode = MCAST_INCLUDE;
 			add = 0;
 		}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 393b6e6f50a..562fcd14fde 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -188,6 +188,16 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, struct in6_addr *addr)
 	if (!ipv6_addr_is_multicast(addr))
 		return -EINVAL;
 
+	read_lock_bh(&ipv6_sk_mc_lock);
+	for (mc_lst=np->ipv6_mc_list; mc_lst; mc_lst=mc_lst->next) {
+		if ((ifindex == 0 || mc_lst->ifindex == ifindex) &&
+		    ipv6_addr_equal(&mc_lst->addr, addr)) {
+			read_unlock_bh(&ipv6_sk_mc_lock);
+			return -EADDRINUSE;
+		}
+	}
+	read_unlock_bh(&ipv6_sk_mc_lock);
+
 	mc_lst = sock_kmalloc(sk, sizeof(struct ipv6_mc_socklist), GFP_KERNEL);
 
 	if (mc_lst == NULL)
@@ -349,6 +359,7 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 	struct ipv6_pinfo *inet6 = inet6_sk(sk);
 	struct ip6_sf_socklist *psl;
 	int i, j, rv;
+	int leavegroup = 0;
 	int err;
 
 	if (pgsr->gsr_group.ss_family != AF_INET6 ||
@@ -368,6 +379,7 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 
 	err = -EADDRNOTAVAIL;
 
+	read_lock_bh(&ipv6_sk_mc_lock);
 	for (pmc=inet6->ipv6_mc_list; pmc; pmc=pmc->next) {
 		if (pgsr->gsr_interface && pmc->ifindex != pgsr->gsr_interface)
 			continue;
@@ -401,6 +413,12 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 		if (rv)		/* source not found */
 			goto done;
 
+		/* special case - (INCLUDE, empty) == LEAVE_GROUP */
+		if (psl->sl_count == 1 && omode == MCAST_INCLUDE) {
+			leavegroup = 1;
+			goto done;
+		}
+
 		/* update the interface filter */
 		ip6_mc_del_src(idev, group, omode, 1, source, 1);
 
@@ -453,9 +471,12 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 	/* update the interface list */
 	ip6_mc_add_src(idev, group, omode, 1, source, 1);
 done:
+	read_unlock_bh(&ipv6_sk_mc_lock);
 	read_unlock_bh(&idev->lock);
 	in6_dev_put(idev);
 	dev_put(dev);
+	if (leavegroup)
+		return ipv6_sock_mc_drop(sk, pgsr->gsr_interface, group);
 	return err;
 }
 
@@ -1280,15 +1301,6 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
 		return NULL;
 
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));
-	if (dev->hard_header) {
-		unsigned char ha[MAX_ADDR_LEN];
-
-		ndisc_mc_map(&mld2_all_mcr, ha, dev, 1);
-		if (dev->hard_header(skb, dev, ETH_P_IPV6,ha,NULL,size) < 0) {
-			kfree_skb(skb);
-			return NULL;
-		}
-	}
 
 	if (ipv6_get_lladdr(dev, &addr_buf)) {
 		/* <draft-ietf-magma-mld-source-05.txt>:
@@ -1312,6 +1324,30 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
 	return skb;
 }
 
+static inline int mld_dev_queue_xmit2(struct sk_buff *skb)
+{
+	struct net_device *dev = skb->dev;
+
+	if (dev->hard_header) {
+		unsigned char ha[MAX_ADDR_LEN];
+		int err;
+
+		ndisc_mc_map(&skb->nh.ipv6h->daddr, ha, dev, 1);
+		err = dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len);
+		if (err < 0) {
+			kfree_skb(skb);
+			return err;
+		}
+	}
+	return dev_queue_xmit(skb);
+}
+
+static inline int mld_dev_queue_xmit(struct sk_buff *skb)
+{
+	return NF_HOOK(PF_INET6, NF_IP6_POST_ROUTING, skb, NULL, skb->dev,
+	               mld_dev_queue_xmit2);
+}
+
 static void mld_sendpack(struct sk_buff *skb)
 {
 	struct ipv6hdr *pip6 = skb->nh.ipv6h;
@@ -1329,7 +1365,7 @@ static void mld_sendpack(struct sk_buff *skb)
 	pmr->csum = csum_ipv6_magic(&pip6->saddr, &pip6->daddr, mldlen,
 		IPPROTO_ICMPV6, csum_partial(skb->h.raw, mldlen, 0));
 	err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
-		dev_queue_xmit);
+		mld_dev_queue_xmit);
 	if (!err) {
 		ICMP6_INC_STATS(idev,ICMP6_MIB_OUTMSGS);
 		IP6_INC_STATS(IPSTATS_MIB_OUTMCASTPKTS);
@@ -1635,12 +1671,6 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 	}
 
 	skb_reserve(skb, LL_RESERVED_SPACE(dev));
-	if (dev->hard_header) {
-		unsigned char ha[MAX_ADDR_LEN];
-		ndisc_mc_map(snd_addr, ha, dev, 1);
-		if (dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, full_len) < 0)
-			goto out;
-	}
 
 	if (ipv6_get_lladdr(dev, &addr_buf)) {
 		/* <draft-ietf-magma-mld-source-05.txt>:
@@ -1668,7 +1698,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 	idev = in6_dev_get(skb->dev);
 
 	err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
-		dev_queue_xmit);
+		mld_dev_queue_xmit);
 	if (!err) {
 		if (type == ICMPV6_MGM_REDUCTION)
 			ICMP6_INC_STATS(idev, ICMP6_MIB_OUTGROUPMEMBREDUCTIONS);
@@ -1682,10 +1712,6 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
 	if (likely(idev != NULL))
 		in6_dev_put(idev);
 	return;
-
-out:
-	IP6_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
-	kfree_skb(skb);
 }
 
 static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 7c291f4e9ed..7ae72d4c9bd 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -955,7 +955,7 @@ static void ndisc_recv_na(struct sk_buff *skb)
 			struct rt6_info *rt;
 			rt = rt6_get_dflt_router(saddr, dev);
 			if (rt)
-				ip6_del_rt(rt, NULL, NULL);
+				ip6_del_rt(rt, NULL, NULL, NULL);
 		}
 
 out:
@@ -1096,7 +1096,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 
 	if (rt && lifetime == 0) {
 		neigh_clone(neigh);
-		ip6_del_rt(rt, NULL, NULL);
+		ip6_del_rt(rt, NULL, NULL, NULL);
 		rt = NULL;
 	}
 
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index c735276fdd5..73034511c8d 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -71,7 +71,6 @@ static DECLARE_MUTEX(ip6t_mutex);
 /* Must have mutex */
 #define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
 #define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
-#include <linux/netfilter_ipv4/lockhelp.h>
 #include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index bfc3d0185d1..c44685e391b 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -366,8 +366,6 @@ ip6t_log_packet(unsigned int hooknum,
 		const char *level_string,
 		const char *prefix)
 {
-	struct ipv6hdr *ipv6h = skb->nh.ipv6h;
-
 	spin_lock_bh(&log_lock);
 	printk(level_string);
 	printk("%sIN=%s OUT=%s ",
@@ -377,39 +375,25 @@ ip6t_log_packet(unsigned int hooknum,
 	if (in && !out) {
 		/* MAC logging for input chain only. */
 		printk("MAC=");
-		if (skb->dev && skb->dev->hard_header_len && skb->mac.raw != (void*)ipv6h) {
-			if (skb->dev->type != ARPHRD_SIT){
-			  int i;
-			  unsigned char *p = skb->mac.raw;
-			  for (i = 0; i < skb->dev->hard_header_len; i++,p++)
-				printk("%02x%c", *p,
-			       		i==skb->dev->hard_header_len - 1
-			       		? ' ':':');
-			} else {
-			  int i;
-			  unsigned char *p = skb->mac.raw;
-			  if ( p - (ETH_ALEN*2+2) > skb->head ){
-			    p -= (ETH_ALEN+2);
-			    for (i = 0; i < (ETH_ALEN); i++,p++)
-				printk("%02x%s", *p,
-					i == ETH_ALEN-1 ? "->" : ":");
-			    p -= (ETH_ALEN*2);
-			    for (i = 0; i < (ETH_ALEN); i++,p++)
-				printk("%02x%c", *p,
-					i == ETH_ALEN-1 ? ' ' : ':');
-			  }
-			  
-			  if ((skb->dev->addr_len == 4) &&
-			      skb->dev->hard_header_len > 20){
-			    printk("TUNNEL=");
-			    p = skb->mac.raw + 12;
-			    for (i = 0; i < 4; i++,p++)
-				printk("%3d%s", *p,
-					i == 3 ? "->" : ".");
-			    for (i = 0; i < 4; i++,p++)
-				printk("%3d%c", *p,
-					i == 3 ? ' ' : '.');
-			  }
+		if (skb->dev && skb->dev->hard_header_len &&
+		    skb->mac.raw != skb->nh.raw) {
+			unsigned char *p = skb->mac.raw;
+			int i;
+
+			if (skb->dev->type == ARPHRD_SIT &&
+			    (p -= ETH_HLEN) < skb->head)
+				p = NULL;
+
+			if (p != NULL)
+				for (i = 0; i < skb->dev->hard_header_len; i++)
+					printk("%02x", p[i]);
+			printk(" ");
+
+			if (skb->dev->type == ARPHRD_SIT) {
+				struct iphdr *iph = (struct iphdr *)skb->mac.raw;
+				printk("TUNNEL=%u.%u.%u.%u->%u.%u.%u.%u ",
+				       NIPQUAD(iph->saddr),
+				       NIPQUAD(iph->daddr));
 			}
 		} else
 			printk(" ");
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index 71407beaf79..c2982efd14a 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -129,13 +129,15 @@ static struct nf_hook_ops ip6t_ops[] = {
 	  .hook = ip6t_hook, 
 	  .pf = PF_INET6,
 	  .hooknum = NF_IP6_PRE_ROUTING,
-	  .priority = NF_IP6_PRI_FIRST
+	  .priority = NF_IP6_PRI_FIRST,
+	  .owner = THIS_MODULE,
 	},
 	{
 	  .hook = ip6t_hook, 
 	  .pf = PF_INET6, 
 	  .hooknum = NF_IP6_LOCAL_OUT,
-	  .priority = NF_IP6_PRI_FIRST
+	  .priority = NF_IP6_PRI_FIRST,
+	  .owner = THIS_MODULE,
 	},
 };
 
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 1f5b226c357..878789b3122 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -384,12 +384,13 @@ struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr,
    be destroyed.
  */
 
-int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
+		void *_rtattr, struct netlink_skb_parms *req)
 {
 	int err;
 
 	write_lock_bh(&rt6_lock);
-	err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr);
+	err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr, req);
 	write_unlock_bh(&rt6_lock);
 
 	return err;
@@ -400,7 +401,7 @@ int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
  */
 
 static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
-				struct in6_addr *saddr)
+				struct in6_addr *saddr, struct netlink_skb_parms *req)
 {
 	int err;
 	struct rt6_info *rt;
@@ -432,7 +433,7 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
 
 		dst_hold(&rt->u.dst);
 
-		err = ip6_ins_rt(rt, NULL, NULL);
+		err = ip6_ins_rt(rt, NULL, NULL, req);
 		if (err == 0)
 			return rt;
 
@@ -491,7 +492,8 @@ restart:
 		read_unlock_bh(&rt6_lock);
 
 		nrt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
-			      &skb->nh.ipv6h->saddr);
+			      &skb->nh.ipv6h->saddr,
+			      &NETLINK_CB(skb));
 
 		dst_release(&rt->u.dst);
 		rt = nrt;
@@ -551,7 +553,7 @@ restart:
 		dst_hold(&rt->u.dst);
 		read_unlock_bh(&rt6_lock);
 
-		nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src);
+		nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src, NULL);
 
 		dst_release(&rt->u.dst);
 		rt = nrt;
@@ -598,7 +600,7 @@ static struct dst_entry *ip6_negative_advice(struct dst_entry *dst)
 
 	if (rt) {
 		if (rt->rt6i_flags & RTF_CACHE)
-			ip6_del_rt(rt, NULL, NULL);
+			ip6_del_rt(rt, NULL, NULL, NULL);
 		else
 			dst_release(dst);
 	}
@@ -787,7 +789,8 @@ int ipv6_get_hoplimit(struct net_device *dev)
  *
  */
 
-int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, 
+		void *_rtattr, struct netlink_skb_parms *req)
 {
 	int err;
 	struct rtmsg *r;
@@ -974,7 +977,7 @@ install_route:
 		rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&rt->u.dst));
 	rt->u.dst.dev = dev;
 	rt->rt6i_idev = idev;
-	return ip6_ins_rt(rt, nlh, _rtattr);
+	return ip6_ins_rt(rt, nlh, _rtattr, req);
 
 out:
 	if (dev)
@@ -986,7 +989,7 @@ out:
 	return err;
 }
 
-int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
 	int err;
 
@@ -994,7 +997,7 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
 
 	rt6_reset_dflt_pointer(NULL);
 
-	err = fib6_del(rt, nlh, _rtattr);
+	err = fib6_del(rt, nlh, _rtattr, req);
 	dst_release(&rt->u.dst);
 
 	write_unlock_bh(&rt6_lock);
@@ -1002,7 +1005,7 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
 	return err;
 }
 
-static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr)
+static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
 {
 	struct fib6_node *fn;
 	struct rt6_info *rt;
@@ -1029,7 +1032,7 @@ static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_r
 			dst_hold(&rt->u.dst);
 			read_unlock_bh(&rt6_lock);
 
-			return ip6_del_rt(rt, nlh, _rtattr);
+			return ip6_del_rt(rt, nlh, _rtattr, req);
 		}
 	}
 	read_unlock_bh(&rt6_lock);
@@ -1136,11 +1139,11 @@ source_ok:
 	nrt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(neigh->dev);
 	nrt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&nrt->u.dst));
 
-	if (ip6_ins_rt(nrt, NULL, NULL))
+	if (ip6_ins_rt(nrt, NULL, NULL, NULL))
 		goto out;
 
 	if (rt->rt6i_flags&RTF_CACHE) {
-		ip6_del_rt(rt, NULL, NULL);
+		ip6_del_rt(rt, NULL, NULL, NULL);
 		return;
 	}
 
@@ -1204,7 +1207,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
 	   2. It is gatewayed route or NONEXTHOP route. Action: clone it.
 	 */
 	if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
-		nrt = rt6_cow(rt, daddr, saddr);
+		nrt = rt6_cow(rt, daddr, saddr, NULL);
 		if (!nrt->u.dst.error) {
 			nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
 			if (allfrag)
@@ -1232,7 +1235,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
 		nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
 		if (allfrag)
 			nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
-		ip6_ins_rt(nrt, NULL, NULL);
+		ip6_ins_rt(nrt, NULL, NULL, NULL);
 	}
 
 out:
@@ -1305,7 +1308,7 @@ struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
 
 	rtmsg.rtmsg_ifindex = dev->ifindex;
 
-	ip6_route_add(&rtmsg, NULL, NULL);
+	ip6_route_add(&rtmsg, NULL, NULL, NULL);
 	return rt6_get_dflt_router(gwaddr, dev);
 }
 
@@ -1323,7 +1326,7 @@ restart:
 
 			read_unlock_bh(&rt6_lock);
 
-			ip6_del_rt(rt, NULL, NULL);
+			ip6_del_rt(rt, NULL, NULL, NULL);
 
 			goto restart;
 		}
@@ -1349,10 +1352,10 @@ int ipv6_route_ioctl(unsigned int cmd, void __user *arg)
 		rtnl_lock();
 		switch (cmd) {
 		case SIOCADDRT:
-			err = ip6_route_add(&rtmsg, NULL, NULL);
+			err = ip6_route_add(&rtmsg, NULL, NULL, NULL);
 			break;
 		case SIOCDELRT:
-			err = ip6_route_del(&rtmsg, NULL, NULL);
+			err = ip6_route_del(&rtmsg, NULL, NULL, NULL);
 			break;
 		default:
 			err = -EINVAL;
@@ -1546,7 +1549,7 @@ int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
 	if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
 		return -EINVAL;
-	return ip6_route_del(&rtmsg, nlh, arg);
+	return ip6_route_del(&rtmsg, nlh, arg, &NETLINK_CB(skb));
 }
 
 int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
@@ -1556,7 +1559,7 @@ int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
 	if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
 		return -EINVAL;
-	return ip6_route_add(&rtmsg, nlh, arg);
+	return ip6_route_add(&rtmsg, nlh, arg, &NETLINK_CB(skb));
 }
 
 struct rt6_rtnl_dump_arg
@@ -1566,12 +1569,9 @@ struct rt6_rtnl_dump_arg
 };
 
 static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
-			 struct in6_addr *dst,
-			 struct in6_addr *src,
-			 int iif,
-			 int type, u32 pid, u32 seq,
-			 struct nlmsghdr *in_nlh, int prefix,
-			 unsigned int flags)
+			 struct in6_addr *dst, struct in6_addr *src,
+			 int iif, int type, u32 pid, u32 seq,
+			 int prefix, unsigned int flags)
 {
 	struct rtmsg *rtm;
 	struct nlmsghdr  *nlh;
@@ -1585,10 +1585,6 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 		}
 	}
 
-	if (!pid && in_nlh) {
-		pid = in_nlh->nlmsg_pid;
-	}
-
 	nlh = NLMSG_NEW(skb, pid, seq, type, sizeof(*rtm), flags);
 	rtm = NLMSG_DATA(nlh);
 	rtm->rtm_family = AF_INET6;
@@ -1675,7 +1671,7 @@ static int rt6_dump_route(struct rt6_info *rt, void *p_arg)
 
 	return rt6_fill_node(arg->skb, rt, NULL, NULL, 0, RTM_NEWROUTE,
 		     NETLINK_CB(arg->cb->skb).pid, arg->cb->nlh->nlmsg_seq,
-		     NULL, prefix, NLM_F_MULTI);
+		     prefix, NLM_F_MULTI);
 }
 
 static int fib6_dump_node(struct fib6_walker_t *w)
@@ -1823,7 +1819,7 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
 			    &fl.fl6_dst, &fl.fl6_src,
 			    iif,
 			    RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
-			    nlh->nlmsg_seq, nlh, 0, 0);
+			    nlh->nlmsg_seq, 0, 0);
 	if (err < 0) {
 		err = -EMSGSIZE;
 		goto out_free;
@@ -1839,17 +1835,25 @@ out_free:
 	goto out;	
 }
 
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh)
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh, 
+			struct netlink_skb_parms *req)
 {
 	struct sk_buff *skb;
 	int size = NLMSG_SPACE(sizeof(struct rtmsg)+256);
+	u32 pid = current->pid;
+	u32 seq = 0;
 
+	if (req)
+		pid = req->pid;
+	if (nlh)
+		seq = nlh->nlmsg_seq;
+	
 	skb = alloc_skb(size, gfp_any());
 	if (!skb) {
 		netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, ENOBUFS);
 		return;
 	}
-	if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, 0, 0, nlh, 0, 0) < 0) {
+	if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, pid, seq, 0, 0) < 0) {
 		kfree_skb(skb);
 		netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, EINVAL);
 		return;