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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
  pkt_sched: Prevent livelock in TX queue running.
  Revert "pkt_sched: Add BH protection for qdisc_stab_lock."
  Revert "pkt_sched: Protect gen estimators under est_lock."
  pkt_sched: remove bogus block (cleanup)
  nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization
  netfilter: ctnetlink: sleepable allocation with spin lock bh
  netfilter: ctnetlink: fix sleep in read-side lock section
  netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks
  netfilter: ipt_addrtype: Fix matching of inverted destination address type
  dccp: Fix panic caused by too early termination of retransmission mechanism
  pkt_sched: Don't hold qdisc lock over qdisc_destroy().
  pkt_sched: Add lockdep annotation for qdisc locks
  pkt_sched: Never schedule non-root qdiscs.
  removed unused #include <version.h>
  rt2x00: Fix txdone_entry_desc_flags
  b43: Fix for another Bluetooth Coexistence SPROM Programming error for BCM4306
  mac80211: remove kdoc references to IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
  p54u: reset skb's data/tail pointer on requeue
  p54: move p54_vdcf_init to the right place.
  iwlwifi: fix printk newlines
  ...

1 files changed, 30 insertions, 19 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 600bb23c4c2e..60c51f765887 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1339,19 +1339,23 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
 }
 
 
-void __netif_schedule(struct Qdisc *q)
+static inline void __netif_reschedule(struct Qdisc *q)
 {
-	if (!test_and_set_bit(__QDISC_STATE_SCHED, &q->state)) {
-		struct softnet_data *sd;
-		unsigned long flags;
+	struct softnet_data *sd;
+	unsigned long flags;
 
-		local_irq_save(flags);
-		sd = &__get_cpu_var(softnet_data);
-		q->next_sched = sd->output_queue;
-		sd->output_queue = q;
-		raise_softirq_irqoff(NET_TX_SOFTIRQ);
-		local_irq_restore(flags);
-	}
+	local_irq_save(flags);
+	sd = &__get_cpu_var(softnet_data);
+	q->next_sched = sd->output_queue;
+	sd->output_queue = q;
+	raise_softirq_irqoff(NET_TX_SOFTIRQ);
+	local_irq_restore(flags);
+}
+
+void __netif_schedule(struct Qdisc *q)
+{
+	if (!test_and_set_bit(__QDISC_STATE_SCHED, &q->state))
+		__netif_reschedule(q);
 }
 EXPORT_SYMBOL(__netif_schedule);
 
@@ -1800,9 +1804,13 @@ gso:
 
 		spin_lock(root_lock);
 
-		rc = qdisc_enqueue_root(skb, q);
-		qdisc_run(q);
-
+		if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) {
+			kfree_skb(skb);
+			rc = NET_XMIT_DROP;
+		} else {
+			rc = qdisc_enqueue_root(skb, q);
+			qdisc_run(q);
+		}
 		spin_unlock(root_lock);
 
 		goto out;
@@ -1974,15 +1982,17 @@ static void net_tx_action(struct softirq_action *h)
 
 			head = head->next_sched;
 
-			smp_mb__before_clear_bit();
-			clear_bit(__QDISC_STATE_SCHED, &q->state);
-
 			root_lock = qdisc_lock(q);
 			if (spin_trylock(root_lock)) {
+				smp_mb__before_clear_bit();
+				clear_bit(__QDISC_STATE_SCHED,
+					  &q->state);
 				qdisc_run(q);
 				spin_unlock(root_lock);
 			} else {
-				__netif_schedule(q);
+				if (!test_bit(__QDISC_STATE_DEACTIVATED,
+					      &q->state))
+					__netif_reschedule(q);
 			}
 		}
 	}
@@ -2084,7 +2094,8 @@ static int ing_filter(struct sk_buff *skb)
 	q = rxq->qdisc;
 	if (q != &noop_qdisc) {
 		spin_lock(qdisc_lock(q));
-		result = qdisc_enqueue_root(skb, q);
+		if (likely(!test_bit(__QDISC_STATE_DEACTIVATED, &q->state)))
+			result = qdisc_enqueue_root(skb, q);
 		spin_unlock(qdisc_lock(q));
 	}