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sched: rt: account the cpu time during the tick

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Realtime tasks would not account their runtime during ticks. Which would lead
to:

        struct sched_param param = { .sched_priority = 10 };
        pthread_setschedparam(pthread_self(), SCHED_FIFO, &param);

	while (1) ;

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Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Peter Zijlstra 2007-12-20 15:01:17 +01:00 committed by Ingo Molnar
parent fbdcf18df7
commit 67e2be0232
1 changed files with 2 additions and 0 deletions
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2
kernel/sched_rt.c
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@ -208,6 +208,8 @@ move_one_task_rt(struct rq *this_rq, int this_cpu, struct rq *busiest,
static void task_tick_rt(struct rq *rq, struct task_struct *p)
{
update_curr_rt(rq);
/*
* RR tasks need a special form of timeslice management.
* FIFO tasks have no timeslices.