net: Define accessors to manipulate QDISC_STATE_RUNNING
Define three helpers to manipulate QDISC_STATE_RUNNIG flag, that a
second patch will move on another location.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 03ca5d8..9707dae 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -76,6 +76,21 @@
struct rcu_head rcu_head;
};
+static inline bool qdisc_is_running(struct Qdisc *qdisc)
+{
+ return test_bit(__QDISC_STATE_RUNNING, &qdisc->state);
+}
+
+static inline bool qdisc_run_begin(struct Qdisc *qdisc)
+{
+ return !test_and_set_bit(__QDISC_STATE_RUNNING, &qdisc->state);
+}
+
+static inline void qdisc_run_end(struct Qdisc *qdisc)
+{
+ clear_bit(__QDISC_STATE_RUNNING, &qdisc->state);
+}
+
struct Qdisc_class_ops {
/* Child qdisc manipulation */
struct netdev_queue * (*select_queue)(struct Qdisc *, struct tcmsg *);