pkt_sched: Add and use qdisc_root() and qdisc_root_lock().

[safe/jmp/linux-2.6] / include / net / sch_generic.h

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index bc2a09d..9241782 100644 (file)
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -161,6 +161,18 @@ struct tcf_proto
        struct tcf_proto_ops    *ops;
 };
 
+static inline struct Qdisc *qdisc_root(struct Qdisc *qdisc)
+{
+       return qdisc->dev_queue->qdisc;
+}
+
+static inline spinlock_t *qdisc_root_lock(struct Qdisc *qdisc)
+{
+       struct Qdisc *root = qdisc_root(qdisc);
+
+       return &root->dev_queue->lock;
+}
+
 static inline struct net_device *qdisc_dev(struct Qdisc *qdisc)
 {
        return qdisc->dev_queue->dev;