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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-28 12:31:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-28 12:31:12 -0700
commit0234bf1d98ebd1cb8ea1630957f6d14170cc0ba0 (patch)
tree3eea55e96ac50278da3d2cab4ba26da16a4abe40
parente52c8857e0ca3214aa7e2a746000ac0f3016b345 (diff)
parentcc2991cf15ae92fa30b3ea9f56a8a5a337bd33c7 (diff)
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: rt-bandwidth accounting fix sched: fix sched_rt_rq_enqueue() resched idle
-rw-r--r--kernel/sched_rt.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 998ba54b4543..552310798dad 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -199,6 +199,8 @@ static inline struct rt_rq *group_rt_rq(struct sched_rt_entity *rt_se)
static inline void sched_rt_rq_enqueue(struct rt_rq *rt_rq)
{
+ if (rt_rq->rt_nr_running)
+ resched_task(rq_of_rt_rq(rt_rq)->curr);
}
static inline void sched_rt_rq_dequeue(struct rt_rq *rt_rq)
@@ -438,9 +440,6 @@ static int sched_rt_runtime_exceeded(struct rt_rq *rt_rq)
{
u64 runtime = sched_rt_runtime(rt_rq);
- if (runtime == RUNTIME_INF)
- return 0;
-
if (rt_rq->rt_throttled)
return rt_rq_throttled(rt_rq);
@@ -491,9 +490,11 @@ static void update_curr_rt(struct rq *rq)
rt_rq = rt_rq_of_se(rt_se);
spin_lock(&rt_rq->rt_runtime_lock);
- rt_rq->rt_time += delta_exec;
- if (sched_rt_runtime_exceeded(rt_rq))
- resched_task(curr);
+ if (sched_rt_runtime(rt_rq) != RUNTIME_INF) {
+ rt_rq->rt_time += delta_exec;
+ if (sched_rt_runtime_exceeded(rt_rq))
+ resched_task(curr);
+ }
spin_unlock(&rt_rq->rt_runtime_lock);
}
}

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