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sched: Convert rq->lock to raw_spinlock

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Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner
2009-11-17 14:28:38 +01:00
parent a26724591e
commit 05fa785cf8
5 changed files with 106 additions and 103 deletions
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4
kernel/sched_fair.c
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@@ -1955,7 +1955,7 @@ static void task_fork_fair(struct task_struct *p)
struct rq *rq = this_rq();
unsigned long flags;
spin_lock_irqsave(&rq->lock, flags);
raw_spin_lock_irqsave(&rq->lock, flags);
if (unlikely(task_cpu(p) != this_cpu))
__set_task_cpu(p, this_cpu);
@@ -1975,7 +1975,7 @@ static void task_fork_fair(struct task_struct *p)
resched_task(rq->curr);
}
spin_unlock_irqrestore(&rq->lock, flags);
raw_spin_unlock_irqrestore(&rq->lock, flags);
}
/*