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sched: rt-group: make rt groups scheduling configurable

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Make the rt group scheduler compile time configurable.
Keep it experimental for now.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2008-02-13 15:45:40 +01:00
committed by Ingo Molnar
parent 9f0c1e560c
commit 052f1dc7eb
6 changed files with 155 additions and 71 deletions
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12
kernel/sched_rt.c
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@@ -55,7 +55,7 @@ static inline int on_rt_rq(struct sched_rt_entity *rt_se)
return !list_empty(&rt_se->run_list);
}
#ifdef CONFIG_FAIR_GROUP_SCHED
#ifdef CONFIG_RT_GROUP_SCHED
static inline u64 sched_rt_runtime(struct rt_rq *rt_rq)
{
@@ -177,7 +177,7 @@ static inline int rt_rq_throttled(struct rt_rq *rt_rq)
static inline int rt_se_prio(struct sched_rt_entity *rt_se)
{
#ifdef CONFIG_FAIR_GROUP_SCHED
#ifdef CONFIG_RT_GROUP_SCHED
struct rt_rq *rt_rq = group_rt_rq(rt_se);
if (rt_rq)
@@ -269,7 +269,7 @@ void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
{
WARN_ON(!rt_prio(rt_se_prio(rt_se)));
rt_rq->rt_nr_running++;
#if defined CONFIG_SMP || defined CONFIG_FAIR_GROUP_SCHED
#if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
if (rt_se_prio(rt_se) < rt_rq->highest_prio)
rt_rq->highest_prio = rt_se_prio(rt_se);
#endif
@@ -281,7 +281,7 @@ void inc_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
update_rt_migration(rq_of_rt_rq(rt_rq));
#endif
#ifdef CONFIG_FAIR_GROUP_SCHED
#ifdef CONFIG_RT_GROUP_SCHED
if (rt_se_boosted(rt_se))
rt_rq->rt_nr_boosted++;
#endif
@@ -293,7 +293,7 @@ void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
WARN_ON(!rt_prio(rt_se_prio(rt_se)));
WARN_ON(!rt_rq->rt_nr_running);
rt_rq->rt_nr_running--;
#if defined CONFIG_SMP || defined CONFIG_FAIR_GROUP_SCHED
#if defined CONFIG_SMP || defined CONFIG_RT_GROUP_SCHED
if (rt_rq->rt_nr_running) {
struct rt_prio_array *array;
@@ -315,7 +315,7 @@ void dec_rt_tasks(struct sched_rt_entity *rt_se, struct rt_rq *rt_rq)
update_rt_migration(rq_of_rt_rq(rt_rq));
#endif /* CONFIG_SMP */
#ifdef CONFIG_FAIR_GROUP_SCHED
#ifdef CONFIG_RT_GROUP_SCHED
if (rt_se_boosted(rt_se))
rt_rq->rt_nr_boosted--;