From bc135b23d01acf7ee926aaf75b0020c86d3869f9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 2 Jun 2010 03:23:51 -0700 Subject: 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 Signed-off-by: David S. Miller --- include/net/pkt_sched.h | 2 +- include/net/sch_generic.h | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index 9d4d87c..d9549af 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -95,7 +95,7 @@ extern void __qdisc_run(struct Qdisc *q); static inline void qdisc_run(struct Qdisc *q) { - if (!test_and_set_bit(__QDISC_STATE_RUNNING, &q->state)) + if (qdisc_run_begin(q)) __qdisc_run(q); } 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 Qdisc { 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 *); -- cgit v1.1