diff options
Diffstat (limited to 'kernel/sched_rt.c')
| -rw-r--r-- | kernel/sched_rt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c index b591b89710a..1a2d8f0aa65 100644 --- a/kernel/sched_rt.c +++ b/kernel/sched_rt.c @@ -4,16 +4,24 @@ */ #ifdef CONFIG_SMP + +/* + * The "RT overload" flag: it gets set if a CPU has more than + * one runnable RT task. + */ static cpumask_t rt_overload_mask; static atomic_t rto_count; + static inline int rt_overloaded(void) { return atomic_read(&rto_count); } + static inline cpumask_t *rt_overload(void) { return &rt_overload_mask; } + static inline void rt_set_overload(struct rq *rq) { rq->rt.overloaded = 1; @@ -28,6 +36,7 @@ static inline void rt_set_overload(struct rq *rq) wmb(); atomic_inc(&rto_count); } + static inline void rt_clear_overload(struct rq *rq) { /* the order here really doesn't matter */ |