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: fix deadlock in setting scheduler parameter to zero sched: fix 2.6.27-rc5 couldn't boot on tulsa machine randomly
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b4df9d88a6
2 changed files with 7 additions and 0 deletions
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@ -8909,6 +8909,9 @@ static int sched_rt_global_constraints(void)
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u64 rt_runtime, rt_period;
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int ret = 0;
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if (sysctl_sched_rt_period <= 0)
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return -EINVAL;
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rt_period = ktime_to_ns(tg->rt_bandwidth.rt_period);
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rt_runtime = tg->rt_bandwidth.rt_runtime;
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@ -8925,6 +8928,9 @@ static int sched_rt_global_constraints(void)
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unsigned long flags;
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int i;
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if (sysctl_sched_rt_period <= 0)
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return -EINVAL;
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spin_lock_irqsave(&def_rt_bandwidth.rt_runtime_lock, flags);
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for_each_possible_cpu(i) {
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struct rt_rq *rt_rq = &cpu_rq(i)->rt;
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@ -350,6 +350,7 @@ static void __enable_runtime(struct rq *rq)
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spin_lock(&rt_rq->rt_runtime_lock);
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rt_rq->rt_runtime = rt_b->rt_runtime;
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rt_rq->rt_time = 0;
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rt_rq->rt_throttled = 0;
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spin_unlock(&rt_rq->rt_runtime_lock);
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spin_unlock(&rt_b->rt_runtime_lock);
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}
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