diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 76d8d418eae3..595348452a06 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4607,3 +4607,35 @@ void __might_sleep(char *file, int line) } EXPORT_SYMBOL(__might_sleep); #endif + +#ifdef CONFIG_MAGIC_SYSRQ +void normalize_rt_tasks(void) +{ + struct task_struct *p; + prio_array_t *array; + unsigned long flags; + runqueue_t *rq; + + read_lock_irq(&tasklist_lock); + for_each_process (p) { + if (!rt_task(p)) + continue; + + rq = task_rq_lock(p, &flags); + + array = p->array; + if (array) + deactivate_task(p, task_rq(p)); + __setscheduler(p, SCHED_NORMAL, 0); + if (array) { + __activate_task(p, task_rq(p)); + resched_task(rq->curr); + } + + task_rq_unlock(rq, &flags); + } + read_unlock_irq(&tasklist_lock); +} + +EXPORT_SYMBOL(normalize_rt_tasks); +#endif /* CONFIG_MAGIC_SYSRQ */ |