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 85293ccf7efc..a755e880f4ba 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 daebd93fd8a0..760dc8238d65 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 faa6176bbeb1..de21da00057f 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 28d9425d5c39..09e824622977 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 79835a67a274..5bad504630a3 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 0f0711417c9d..b78a53586804 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 601a148f60f3..6b9867717d11 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 4429b1a1fe5f..cf1d91e74c82 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 733bf52cef3e..e41ce458c2a9 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 e0c9fbe73b15..bb9bf8d5003c 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 c478fc8db776..c420eba4876b 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 080aae243ce0..2f4531fcaca2 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 55ed979db144..d07f5ce31824 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 5ddda2c98af9..97509011c274 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;
 }