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-rw-r--r--include/net/sch_generic.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index dad558bc06f..03ca5d82675 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -73,6 +73,7 @@ struct Qdisc {
struct sk_buff_head q;
struct gnet_stats_basic_packed bstats;
struct gnet_stats_queue qstats;
+ struct rcu_head rcu_head;
};
struct Qdisc_class_ops {
@@ -427,6 +428,25 @@ static inline struct sk_buff *qdisc_dequeue_head(struct Qdisc *sch)
return __qdisc_dequeue_head(sch, &sch->q);
}
+static inline unsigned int __qdisc_queue_drop_head(struct Qdisc *sch,
+ struct sk_buff_head *list)
+{
+ struct sk_buff *skb = __qdisc_dequeue_head(sch, list);
+
+ if (likely(skb != NULL)) {
+ unsigned int len = qdisc_pkt_len(skb);
+ kfree_skb(skb);
+ return len;
+ }
+
+ return 0;
+}
+
+static inline unsigned int qdisc_queue_drop_head(struct Qdisc *sch)
+{
+ return __qdisc_queue_drop_head(sch, &sch->q);
+}
+
static inline struct sk_buff *__qdisc_dequeue_tail(struct Qdisc *sch,
struct sk_buff_head *list)
{