Automatic merge of /spare/repo/netdev-2.6 branch master

14 files changed, 166 insertions, 198 deletions

diff --git a/net/802/tr.c b/net/802/tr.c
index 85293cc..a755e88 100644
--- a/net/802/tr.c
+++ b/net/802/tr.c
@@ -47,12 +47,12 @@ static void rif_check_expire(unsigned long dummy);
  *	Each RIF entry we learn is kept this way
  */
  
-struct rif_cache_s {	
+struct rif_cache {
 	unsigned char addr[TR_ALEN];
 	int iface;
-	__u16 rcf;
-	__u16 rseg[8];
-	struct rif_cache_s *next;
+	__be16 rcf;
+	__be16 rseg[8];
+	struct rif_cache *next;
 	unsigned long last_used;
 	unsigned char local_ring;
 };
@@ -64,7 +64,7 @@ struct rif_cache_s {
  *	up a lot.
  */
  
-static struct rif_cache_s *rif_table[RIF_TABLE_SIZE];
+static struct rif_cache *rif_table[RIF_TABLE_SIZE];
 
 static DEFINE_SPINLOCK(rif_lock);
 
@@ -249,7 +249,7 @@ void tr_source_route(struct sk_buff *skb,struct trh_hdr *trh,struct net_device *
 {
 	int slack;
 	unsigned int hash;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 	unsigned char *olddata;
 	static const unsigned char mcast_func_addr[] 
 		= {0xC0,0x00,0x00,0x04,0x00,0x00};
@@ -337,7 +337,7 @@ printk("source routing for %02X:%02X:%02X:%02X:%02X:%02X\n",trh->daddr[0],
 static void tr_add_rif_info(struct trh_hdr *trh, struct net_device *dev)
 {
 	unsigned int hash, rii_p = 0;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 
 
 	spin_lock_bh(&rif_lock);
@@ -373,7 +373,7 @@ printk("adding rif_entry: addr:%02X:%02X:%02X:%02X:%02X:%02X rcf:%04X\n",
 		 *	FIXME: We ought to keep some kind of cache size
 		 *	limiting and adjust the timers to suit.
 		 */
-		entry=kmalloc(sizeof(struct rif_cache_s),GFP_ATOMIC);
+		entry=kmalloc(sizeof(struct rif_cache),GFP_ATOMIC);
 
 		if(!entry) 
 		{
@@ -435,7 +435,7 @@ static void rif_check_expire(unsigned long dummy)
 	spin_lock_bh(&rif_lock);
 	
 	for(i =0; i < RIF_TABLE_SIZE; i++) {
-		struct rif_cache_s *entry, **pentry;
+		struct rif_cache *entry, **pentry;
 		
 		pentry = rif_table+i;
 		while((entry=*pentry) != NULL) {
@@ -467,10 +467,10 @@ static void rif_check_expire(unsigned long dummy)
  
 #ifdef CONFIG_PROC_FS
 
-static struct rif_cache_s *rif_get_idx(loff_t pos)
+static struct rif_cache *rif_get_idx(loff_t pos)
 {
 	int i;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 	loff_t off = 0;
 
 	for(i = 0; i < RIF_TABLE_SIZE; i++) 
@@ -493,7 +493,7 @@ static void *rif_seq_start(struct seq_file *seq, loff_t *pos)
 static void *rif_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	int i;
-	struct rif_cache_s *ent = v;
+	struct rif_cache *ent = v;
 
 	++*pos;
 
@@ -522,7 +522,7 @@ static void rif_seq_stop(struct seq_file *seq, void *v)
 static int rif_seq_show(struct seq_file *seq, void *v)
 {
 	int j, rcf_len, segment, brdgnmb;
-	struct rif_cache_s *entry = v;
+	struct rif_cache *entry = v;
 
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq,
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index daebd93..760dc82 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -490,6 +490,14 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
 			/* Partially cloned skb? */
 			if (skb_shared(frag))
 				goto slow_path;
+
+			BUG_ON(frag->sk);
+			if (skb->sk) {
+				sock_hold(skb->sk);
+				frag->sk = skb->sk;
+				frag->destructor = sock_wfree;
+				skb->truesize -= frag->truesize;
+			}
 		}
 
 		/* Everything is OK. Generate! */
diff --git a/net/ipv4/ipvs/ip_vs_xmit.c b/net/ipv4/ipvs/ip_vs_xmit.c
index faa6176..de21da0 100644
--- a/net/ipv4/ipvs/ip_vs_xmit.c
+++ b/net/ipv4/ipvs/ip_vs_xmit.c
@@ -508,7 +508,6 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 			rc = NF_ACCEPT;
 		/* do not touch skb anymore */
 		atomic_inc(&cp->in_pkts);
-		__ip_vs_conn_put(cp);
 		goto out;
 	}
 
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 28d9425..09e8246 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -940,37 +940,25 @@ void ip_ct_refresh_acct(struct ip_conntrack *ct,
 struct sk_buff *
 ip_ct_gather_frags(struct sk_buff *skb, u_int32_t user)
 {
-	struct sock *sk = skb->sk;
 #ifdef CONFIG_NETFILTER_DEBUG
 	unsigned int olddebug = skb->nf_debug;
 #endif
 
-	if (sk) {
-		sock_hold(sk);
-		skb_orphan(skb);
-	}
+	skb_orphan(skb);
 
 	local_bh_disable(); 
 	skb = ip_defrag(skb, user);
 	local_bh_enable();
 
-	if (!skb) {
-		if (sk)
-			sock_put(sk);
-		return skb;
-	}
-
-	if (sk) {
-		skb_set_owner_w(skb, sk);
-		sock_put(sk);
-	}
-
-	ip_send_check(skb->nh.iph);
-	skb->nfcache |= NFC_ALTERED;
+	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;
+		/* Packet path as if nothing had happened. */
+		skb->nf_debug = olddebug;
 #endif
+	}
+
 	return skb;
 }
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 79835a6..5bad504 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4355,16 +4355,7 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 					goto no_ack;
 			}
 
-			if (eaten) {
-				if (tcp_in_quickack_mode(tp)) {
-					tcp_send_ack(sk);
-				} else {
-					tcp_send_delayed_ack(sk);
-				}
-			} else {
-				__tcp_ack_snd_check(sk, 0);
-			}
-
+			__tcp_ack_snd_check(sk, 0);
 no_ack:
 			if (eaten)
 				__kfree_skb(skb);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 0f07114..b78a535 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -552,13 +552,17 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
 			    skb_headroom(frag) < hlen)
 			    goto slow_path;
 
-			/* Correct socket ownership. */
-			if (frag->sk == NULL)
-				goto slow_path;
-
 			/* Partially cloned skb? */
 			if (skb_shared(frag))
 				goto slow_path;
+
+			BUG_ON(frag->sk);
+			if (skb->sk) {
+				sock_hold(skb->sk);
+				frag->sk = skb->sk;
+				frag->destructor = sock_wfree;
+				skb->truesize -= frag->truesize;
+			}
 		}
 
 		err = 0;
@@ -1116,12 +1120,10 @@ int ip6_push_pending_frames(struct sock *sk)
 		tail_skb = &(tmp_skb->next);
 		skb->len += tmp_skb->len;
 		skb->data_len += tmp_skb->len;
-#if 0 /* Logically correct, but useless work, ip_fragment() will have to undo */
 		skb->truesize += tmp_skb->truesize;
 		__sock_put(tmp_skb->sk);
 		tmp_skb->destructor = NULL;
 		tmp_skb->sk = NULL;
-#endif
 	}
 
 	ipv6_addr_copy(final_dst, &fl->fl6_dst);
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index 601a148..6b98677 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -84,6 +84,7 @@ static int xfrm6_tunnel_check_size(struct sk_buff *skb)
 		mtu = IPV6_MIN_MTU;
 
 	if (skb->len > mtu) {
+		skb->dev = dst->dev;
 		icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu, skb->dev);
 		ret = -EMSGSIZE;
 	}
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 4429b1a..cf1d91e 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -113,6 +113,8 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 
 		xdst = (struct xfrm_dst *)dst1;
 		xdst->route = &rt->u.dst;
+		if (rt->rt6i_node)
+			xdst->route_cookie = rt->rt6i_node->fn_sernum;
 
 		dst1->next = dst_prev;
 		dst_prev = dst1;
@@ -137,6 +139,8 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 
 	dst_prev->child = &rt->u.dst;
 	dst->path = &rt->u.dst;
+	if (rt->rt6i_node)
+		((struct xfrm_dst *)dst)->path_cookie = rt->rt6i_node->fn_sernum;
 
 	*dst_p = dst;
 	dst = dst_prev;
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 733bf52..e41ce45 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -735,11 +735,15 @@ static inline int do_one_broadcast(struct sock *sk,
 
 	sock_hold(sk);
 	if (p->skb2 == NULL) {
-		if (atomic_read(&p->skb->users) != 1) {
+		if (skb_shared(p->skb)) {
 			p->skb2 = skb_clone(p->skb, p->allocation);
 		} else {
-			p->skb2 = p->skb;
-			atomic_inc(&p->skb->users);
+			p->skb2 = skb_get(p->skb);
+			/*
+			 * skb ownership may have been set when
+			 * delivered to a previous socket.
+			 */
+			skb_orphan(p->skb2);
 		}
 	}
 	if (p->skb2 == NULL) {
@@ -785,11 +789,12 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
 	sk_for_each_bound(sk, node, &nl_table[ssk->sk_protocol].mc_list)
 		do_one_broadcast(sk, &info);
 
+	kfree_skb(skb);
+
 	netlink_unlock_table();
 
 	if (info.skb2)
 		kfree_skb(info.skb2);
-	kfree_skb(skb);
 
 	if (info.delivered) {
 		if (info.congested && (allocation & __GFP_WAIT))
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index e0c9fbe..bb9bf8d 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -53,7 +53,6 @@
 
 struct netem_sched_data {
 	struct Qdisc	*qdisc;
-	struct sk_buff_head delayed;
 	struct timer_list timer;
 
 	u32 latency;
@@ -63,11 +62,12 @@ struct netem_sched_data {
 	u32 gap;
 	u32 jitter;
 	u32 duplicate;
+	u32 reorder;
 
 	struct crndstate {
 		unsigned long last;
 		unsigned long rho;
-	} delay_cor, loss_cor, dup_cor;
+	} delay_cor, loss_cor, dup_cor, reorder_cor;
 
 	struct disttable {
 		u32  size;
@@ -137,122 +137,68 @@ static long tabledist(unsigned long mu, long sigma,
 	return  x / NETEM_DIST_SCALE + (sigma / NETEM_DIST_SCALE) * t + mu;
 }
 
-/* Put skb in the private delayed queue. */
-static int netem_delay(struct Qdisc *sch, struct sk_buff *skb)
-{
-	struct netem_sched_data *q = qdisc_priv(sch);
-	psched_tdiff_t td;
-	psched_time_t now;
-	
-	PSCHED_GET_TIME(now);
-	td = tabledist(q->latency, q->jitter, &q->delay_cor, q->delay_dist);
-	
-	/* Always queue at tail to keep packets in order */
-	if (likely(q->delayed.qlen < q->limit)) {
-		struct netem_skb_cb *cb = (struct netem_skb_cb *)skb->cb;
-	
-		PSCHED_TADD2(now, td, cb->time_to_send);
-
-		pr_debug("netem_delay: skb=%p now=%llu tosend=%llu\n", skb, 
-			 now, cb->time_to_send);
-	
-		__skb_queue_tail(&q->delayed, skb);
-		return NET_XMIT_SUCCESS;
-	}
-
-	pr_debug("netem_delay: queue over limit %d\n", q->limit);
-	sch->qstats.overlimits++;
-	kfree_skb(skb);
-	return NET_XMIT_DROP;
-}
-
 /*
- *  Move a packet that is ready to send from the delay holding
- *  list to the underlying qdisc.
+ * Insert one skb into qdisc.
+ * Note: parent depends on return value to account for queue length.
+ * 	NET_XMIT_DROP: queue length didn't change.
+ *      NET_XMIT_SUCCESS: one skb was queued.
  */
-static int netem_run(struct Qdisc *sch)
-{
-	struct netem_sched_data *q = qdisc_priv(sch);
-	struct sk_buff *skb;
-	psched_time_t now;
-
-	PSCHED_GET_TIME(now);
-
-	skb = skb_peek(&q->delayed);
-	if (skb) {
-		const struct netem_skb_cb *cb
-			= (const struct netem_skb_cb *)skb->cb;
-		long delay 
-			= PSCHED_US2JIFFIE(PSCHED_TDIFF(cb->time_to_send, now));
-		pr_debug("netem_run: skb=%p delay=%ld\n", skb, delay);
-
-		/* if more time remaining? */
-		if (delay > 0) {
-			mod_timer(&q->timer, jiffies + delay);
-			return 1;
-		}
-
-		__skb_unlink(skb, &q->delayed);
-		
-		if (q->qdisc->enqueue(skb, q->qdisc)) {
-			sch->q.qlen--;
-			sch->qstats.drops++;
-		} 
-	}
-
-	return 0;
-}
-
 static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
+	struct netem_skb_cb *cb = (struct netem_skb_cb *)skb->cb;
+	struct sk_buff *skb2;
 	int ret;
+	int count = 1;
 
 	pr_debug("netem_enqueue skb=%p\n", skb);
 
+	/* Random duplication */
+	if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor))
+		++count;
+
 	/* Random packet drop 0 => none, ~0 => all */
-	if (q->loss && q->loss >= get_crandom(&q->loss_cor)) {
-		pr_debug("netem_enqueue: random loss\n");
+	if (q->loss && q->loss >= get_crandom(&q->loss_cor))
+		--count;
+
+	if (count == 0) {
 		sch->qstats.drops++;
 		kfree_skb(skb);
-		return 0;	/* lie about loss so TCP doesn't know */
+		return NET_XMIT_DROP;
 	}
 
-	/* Random duplication */
-	if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor)) {
-		struct sk_buff *skb2;
-
-		skb2 = skb_clone(skb, GFP_ATOMIC);
-		if (skb2 && netem_delay(sch, skb2) == NET_XMIT_SUCCESS) {
-			struct Qdisc *qp;
-
-			/* Since one packet can generate two packets in the
-			 * queue, the parent's qlen accounting gets confused,
-			 * so fix it.
-			 */
-			qp = qdisc_lookup(sch->dev, TC_H_MAJ(sch->parent));
-			if (qp)
-				qp->q.qlen++;
-
-			sch->q.qlen++;
-			sch->bstats.bytes += skb2->len;
-			sch->bstats.packets++;
-		} else
-			sch->qstats.drops++;
+	/*
+	 * If we need to duplicate packet, then re-insert at top of the
+	 * qdisc tree, since parent queuer expects that only one
+	 * skb will be queued.
+	 */
+	if (count > 1 && (skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
+		struct Qdisc *rootq = sch->dev->qdisc;
+		u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
+		q->duplicate = 0;
+
+		rootq->enqueue(skb2, rootq);
+		q->duplicate = dupsave;
 	}
 
-	/* If doing simple delay then gap == 0 so all packets
-	 * go into the delayed holding queue
-	 * otherwise if doing out of order only "1 out of gap"
-	 * packets will be delayed.
-	 */
-	if (q->counter < q->gap) {
+	if (q->gap == 0 		/* not doing reordering */
+	    || q->counter < q->gap 	/* inside last reordering gap */
+	    || q->reorder < get_crandom(&q->reorder_cor)) {
+		psched_time_t now;
+		PSCHED_GET_TIME(now);
+		PSCHED_TADD2(now, tabledist(q->latency, q->jitter, 
+					    &q->delay_cor, q->delay_dist),
+			     cb->time_to_send);
 		++q->counter;
 		ret = q->qdisc->enqueue(skb, q->qdisc);
 	} else {
+		/* 
+		 * Do re-ordering by putting one out of N packets at the front
+		 * of the queue.
+		 */
+		PSCHED_GET_TIME(cb->time_to_send);
 		q->counter = 0;
-		ret = netem_delay(sch, skb);
-		netem_run(sch);
+		ret = q->qdisc->ops->requeue(skb, q->qdisc);
 	}
 
 	if (likely(ret == NET_XMIT_SUCCESS)) {
@@ -296,22 +242,33 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
 	struct sk_buff *skb;
-	int pending;
-
-	pending = netem_run(sch);
 
 	skb = q->qdisc->dequeue(q->qdisc);
 	if (skb) {
-		pr_debug("netem_dequeue: return skb=%p\n", skb);
-		sch->q.qlen--;
-		sch->flags &= ~TCQ_F_THROTTLED;
-	}
-	else if (pending) {
-		pr_debug("netem_dequeue: throttling\n");
+		const struct netem_skb_cb *cb
+			= (const struct netem_skb_cb *)skb->cb;
+		psched_time_t now;
+		long delay;
+
+		/* if more time remaining? */
+		PSCHED_GET_TIME(now);
+		delay = PSCHED_US2JIFFIE(PSCHED_TDIFF(cb->time_to_send, now));
+		pr_debug("netem_run: skb=%p delay=%ld\n", skb, delay);
+		if (delay <= 0) {
+			pr_debug("netem_dequeue: return skb=%p\n", skb);
+			sch->q.qlen--;
+			sch->flags &= ~TCQ_F_THROTTLED;
+			return skb;
+		}
+
+		mod_timer(&q->timer, jiffies + delay);
 		sch->flags |= TCQ_F_THROTTLED;
-	} 
 
-	return skb;
+		if (q->qdisc->ops->requeue(skb, q->qdisc) != 0)
+			sch->qstats.drops++;
+	}
+
+	return NULL;
 }
 
 static void netem_watchdog(unsigned long arg)
@@ -328,8 +285,6 @@ static void netem_reset(struct Qdisc *sch)
 	struct netem_sched_data *q = qdisc_priv(sch);
 
 	qdisc_reset(q->qdisc);
-	skb_queue_purge(&q->delayed);
-
 	sch->q.qlen = 0;
 	sch->flags &= ~TCQ_F_THROTTLED;
 	del_timer_sync(&q->timer);
@@ -397,6 +352,19 @@ static int get_correlation(struct Qdisc *sch, const struct rtattr *attr)
 	return 0;
 }
 
+static int get_reorder(struct Qdisc *sch, const struct rtattr *attr)
+{
+	struct netem_sched_data *q = qdisc_priv(sch);
+	const struct tc_netem_reorder *r = RTA_DATA(attr);
+
+	if (RTA_PAYLOAD(attr) != sizeof(*r))
+		return -EINVAL;
+
+	q->reorder = r->probability;
+	init_crandom(&q->reorder_cor, r->correlation);
+	return 0;
+}
+
 static int netem_change(struct Qdisc *sch, struct rtattr *opt)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
@@ -417,9 +385,15 @@ static int netem_change(struct Qdisc *sch, struct rtattr *opt)
 	q->jitter = qopt->jitter;
 	q->limit = qopt->limit;
 	q->gap = qopt->gap;
+	q->counter = 0;
 	q->loss = qopt->loss;
 	q->duplicate = qopt->duplicate;
 
+	/* for compatiablity with earlier versions.
+	 * if gap is set, need to assume 100% probablity
+	 */
+	q->reorder = ~0;
+
 	/* Handle nested options after initial queue options.
 	 * Should have put all options in nested format but too late now.
 	 */ 
@@ -441,6 +415,11 @@ static int netem_change(struct Qdisc *sch, struct rtattr *opt)
 			if (ret)
 				return ret;
 		}
+		if (tb[TCA_NETEM_REORDER-1]) {
+			ret = get_reorder(sch, tb[TCA_NETEM_REORDER-1]);
+			if (ret)
+				return ret;
+		}
 	}
 
 
@@ -455,11 +434,9 @@ static int netem_init(struct Qdisc *sch, struct rtattr *opt)
 	if (!opt)
 		return -EINVAL;
 
-	skb_queue_head_init(&q->delayed);
 	init_timer(&q->timer);
 	q->timer.function = netem_watchdog;
 	q->timer.data = (unsigned long) sch;
-	q->counter = 0;
 
 	q->qdisc = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
 	if (!q->qdisc) {
@@ -491,6 +468,7 @@ static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct rtattr *rta = (struct rtattr *) b;
 	struct tc_netem_qopt qopt;
 	struct tc_netem_corr cor;
+	struct tc_netem_reorder reorder;
 
 	qopt.latency = q->latency;
 	qopt.jitter = q->jitter;
@@ -504,6 +482,11 @@ static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
 	cor.loss_corr = q->loss_cor.rho;
 	cor.dup_corr = q->dup_cor.rho;
 	RTA_PUT(skb, TCA_NETEM_CORR, sizeof(cor), &cor);
+
+	reorder.probability = q->reorder;
+	reorder.correlation = q->reorder_cor.rho;
+	RTA_PUT(skb, TCA_NETEM_REORDER, sizeof(reorder), &reorder);
+
 	rta->rta_len = skb->tail - b;
 
 	return skb->len;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index c478fc8..c420eba 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -770,33 +770,12 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 		err = path_lookup(sunaddr->sun_path, LOOKUP_PARENT, &nd);
 		if (err)
 			goto out_mknod_parent;
-		/*
-		 * Yucky last component or no last component at all?
-		 * (foo/., foo/.., /////)
-		 */
-		err = -EEXIST;
-		if (nd.last_type != LAST_NORM)
-			goto out_mknod;
-		/*
-		 * Lock the directory.
-		 */
-		down(&nd.dentry->d_inode->i_sem);
-		/*
-		 * Do the final lookup.
-		 */
-		dentry = lookup_hash(&nd.last, nd.dentry);
+
+		dentry = lookup_create(&nd, 0);
 		err = PTR_ERR(dentry);
 		if (IS_ERR(dentry))
 			goto out_mknod_unlock;
-		err = -ENOENT;
-		/*
-		 * Special case - lookup gave negative, but... we had foo/bar/
-		 * From the vfs_mknod() POV we just have a negative dentry -
-		 * all is fine. Let's be bastards - you had / on the end, you've
-		 * been asking for (non-existent) directory. -ENOENT for you.
-		 */
-		if (nd.last.name[nd.last.len] && !dentry->d_inode)
-			goto out_mknod_dput;
+
 		/*
 		 * All right, let's create it.
 		 */
@@ -845,7 +824,6 @@ out_mknod_dput:
 	dput(dentry);
 out_mknod_unlock:
 	up(&nd.dentry->d_inode->i_sem);
-out_mknod:
 	path_release(&nd);
 out_mknod_parent:
 	if (err==-EEXIST)
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 080aae2..2f4531f 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -698,7 +698,7 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 				return -ENOMEM;
 
 			if (skb1->sk)
-				skb_set_owner_w(skb, skb1->sk);
+				skb_set_owner_w(skb2, skb1->sk);
 
 			/* Looking around. Are we still alive?
 			 * OK, link new skb, drop old one */
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 55ed979..d07f5ce 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1136,7 +1136,7 @@ int xfrm_bundle_ok(struct xfrm_dst *first, struct flowi *fl, int family)
 	struct xfrm_dst *last;
 	u32 mtu;
 
-	if (!dst_check(dst->path, 0) ||
+	if (!dst_check(dst->path, ((struct xfrm_dst *)dst)->path_cookie) ||
 	    (dst->dev && !netif_running(dst->dev)))
 		return 0;
 
@@ -1156,7 +1156,7 @@ int xfrm_bundle_ok(struct xfrm_dst *first, struct flowi *fl, int family)
 			xdst->child_mtu_cached = mtu;
 		}
 
-		if (!dst_check(xdst->route, 0))
+		if (!dst_check(xdst->route, xdst->route_cookie))
 			return 0;
 		mtu = dst_mtu(xdst->route);
 		if (xdst->route_mtu_cached != mtu) {
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 5ddda2c..9750901 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -34,14 +34,21 @@ static int verify_one_alg(struct rtattr **xfrma, enum xfrm_attr_type_t type)
 {
 	struct rtattr *rt = xfrma[type - 1];
 	struct xfrm_algo *algp;
+	int len;
 
 	if (!rt)
 		return 0;
 
-	if ((rt->rta_len - sizeof(*rt)) < sizeof(*algp))
+	len = (rt->rta_len - sizeof(*rt)) - sizeof(*algp);
+	if (len < 0)
 		return -EINVAL;
 
 	algp = RTA_DATA(rt);
+
+	len -= (algp->alg_key_len + 7U) / 8; 
+	if (len < 0)
+		return -EINVAL;
+
 	switch (type) {
 	case XFRMA_ALG_AUTH:
 		if (!algp->alg_key_len &&
@@ -162,6 +169,7 @@ static int attach_one_algo(struct xfrm_algo **algpp, u8 *props,
 	struct rtattr *rta = u_arg;
 	struct xfrm_algo *p, *ualg;
 	struct xfrm_algo_desc *algo;
+	int len;
 
 	if (!rta)
 		return 0;
@@ -173,11 +181,12 @@ static int attach_one_algo(struct xfrm_algo **algpp, u8 *props,
 		return -ENOSYS;
 	*props = algo->desc.sadb_alg_id;
 
-	p = kmalloc(sizeof(*ualg) + ualg->alg_key_len, GFP_KERNEL);
+	len = sizeof(*ualg) + (ualg->alg_key_len + 7U) / 8;
+	p = kmalloc(len, GFP_KERNEL);
 	if (!p)
 		return -ENOMEM;
 
-	memcpy(p, ualg, sizeof(*ualg) + ualg->alg_key_len);
+	memcpy(p, ualg, len);
 	*algpp = p;
 	return 0;
 }