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genirq: Convert irq_desc.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 16:46:45 +01:00
parent 9f5a5621e7
commit 239007b844
43 changed files with 240 additions and 240 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/irq/numa_migrate.c
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@ -42,7 +42,7 @@ static bool init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
"for migration.\n", irq);
return false;
}
spin_lock_init(&desc->lock);
raw_spin_lock_init(&desc->lock);
desc->node = node;
lockdep_set_class(&desc->lock, &irq_desc_lock_class);
init_copy_kstat_irqs(old_desc, desc, node, nr_cpu_ids);
@ -67,7 +67,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
irq = old_desc->irq;
spin_lock_irqsave(&sparse_irq_lock, flags);
raw_spin_lock_irqsave(&sparse_irq_lock, flags);
/* We have to check it to avoid races with another CPU */
desc = irq_desc_ptrs[irq];
@ -91,7 +91,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
}
irq_desc_ptrs[irq] = desc;
spin_unlock_irqrestore(&sparse_irq_lock, flags);
raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
/* free the old one */
free_one_irq_desc(old_desc, desc);
@ -100,7 +100,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
return desc;
out_unlock:
spin_unlock_irqrestore(&sparse_irq_lock, flags);
raw_spin_unlock_irqrestore(&sparse_irq_lock, flags);
return desc;
}