Destroy rt bandwidth timer when rq has no more RT tasks, even when
CONFIG_RT_GROUP_SCHED is not set.
Signed-off-by: Juri Lelli <juri.le...@gmail.com>
---
kernel/sched/rt.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index a2740b7..7dba25a 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -86,12 +86,12 @@ void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq)
raw_spin_lock_init(&rt_rq->rt_runtime_lock);
}
-#ifdef CONFIG_RT_GROUP_SCHED
static void destroy_rt_bandwidth(struct rt_bandwidth *rt_b)
{
hrtimer_cancel(&rt_b->rt_period_timer);
}
+#ifdef CONFIG_RT_GROUP_SCHED
#define rt_entity_is_task(rt_se) (!(rt_se)->my_q)
static inline struct task_struct *rt_task_of(struct sched_rt_entity *rt_se)
@@ -1011,8 +1011,12 @@ inc_rt_group(struct sched_rt_entity *rt_se, struct rt_rq
*rt_rq)
start_rt_bandwidth(&def_rt_bandwidth);
}
-static inline
-void dec_rt_group(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq) {}
+static void
+dec_rt_group(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
+{
+ if (!rt_rq->rt_nr_running)
+ destroy_rt_bandwidth(&def_rt_bandwidth);
+}
#endif /* CONFIG_RT_GROUP_SCHED */
--
1.7.9.5
--
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