genirq: Convert irq_desc.lock to raw_spinlock
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>
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 7d10074..6f220a9 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -225,12 +225,12 @@
int src;
int subvirq;
- spin_lock(&desc->lock);
+ raw_spin_lock(&desc->lock);
if (desc->status & IRQ_LEVEL)
desc->chip->mask(virq);
else
desc->chip->mask_ack(virq);
- spin_unlock(&desc->lock);
+ raw_spin_unlock(&desc->lock);
msr = mfdcr(uic->dcrbase + UIC_MSR);
if (!msr) /* spurious interrupt */
@@ -242,12 +242,12 @@
generic_handle_irq(subvirq);
uic_irq_ret:
- spin_lock(&desc->lock);
+ raw_spin_lock(&desc->lock);
if (desc->status & IRQ_LEVEL)
desc->chip->ack(virq);
if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
desc->chip->unmask(virq);
- spin_unlock(&desc->lock);
+ raw_spin_unlock(&desc->lock);
}
static struct uic * __init uic_init_one(struct device_node *node)