Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / include / net / sch_generic.h

diff --git a/kernel/include/net/sch_generic.h b/kernel/include/net/sch_generic.h
index b2a8e63..e5bba89 100644 (file)
--- a/kernel/include/net/sch_generic.h
+++ b/kernel/include/net/sch_generic.h
@@ -396,7 +396,8 @@ struct Qdisc *dev_graft_qdisc(struct netdev_queue *dev_queue,
                              struct Qdisc *qdisc);
 void qdisc_reset(struct Qdisc *qdisc);
 void qdisc_destroy(struct Qdisc *qdisc);
-void qdisc_tree_decrease_qlen(struct Qdisc *qdisc, unsigned int n);
+void qdisc_tree_reduce_backlog(struct Qdisc *qdisc, unsigned int n,
+                              unsigned int len);
 struct Qdisc *qdisc_alloc(struct netdev_queue *dev_queue,
                          const struct Qdisc_ops *ops);
 struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
@@ -407,6 +408,15 @@ bool tcf_destroy(struct tcf_proto *tp, bool force);
 void tcf_destroy_chain(struct tcf_proto __rcu **fl);
 int skb_do_redirect(struct sk_buff *);
 
+static inline bool skb_at_tc_ingress(const struct sk_buff *skb)
+{
+#ifdef CONFIG_NET_CLS_ACT
+       return G_TC_AT(skb->tc_verd) & AT_INGRESS;
+#else
+       return false;
+#endif
+}
+
 /* Reset all TX qdiscs greater then index of a device.  */
 static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i)
 {
@@ -698,6 +708,23 @@ static inline void qdisc_reset_queue(struct Qdisc *sch)
        sch->qstats.backlog = 0;
 }
 
+static inline struct Qdisc *qdisc_replace(struct Qdisc *sch, struct Qdisc *new,
+                                         struct Qdisc **pold)
+{
+       struct Qdisc *old;
+
+       sch_tree_lock(sch);
+       old = *pold;
+       *pold = new;
+       if (old != NULL) {
+               qdisc_tree_reduce_backlog(old, old->q.qlen, old->qstats.backlog);
+               qdisc_reset(old);
+       }
+       sch_tree_unlock(sch);
+
+       return old;
+}
+
 static inline unsigned int __qdisc_queue_drop(struct Qdisc *sch,
                                              struct sk_buff_head *list)
 {