diff options
Diffstat (limited to 'include/net/sch_generic.h')
-rw-r--r-- | include/net/sch_generic.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 03ca5d8..b35301b 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -23,11 +23,17 @@ struct qdisc_rate_table { }; enum qdisc_state_t { - __QDISC_STATE_RUNNING, __QDISC_STATE_SCHED, __QDISC_STATE_DEACTIVATED, }; +/* + * following bits are only changed while qdisc lock is held + */ +enum qdisc___state_t { + __QDISC___STATE_RUNNING, +}; + struct qdisc_size_table { struct list_head list; struct tc_sizespec szopts; @@ -72,10 +78,27 @@ struct Qdisc { unsigned long state; struct sk_buff_head q; struct gnet_stats_basic_packed bstats; + unsigned long __state; struct gnet_stats_queue qstats; - struct rcu_head rcu_head; + struct rcu_head rcu_head; + spinlock_t busylock; }; +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 *); |