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authorThomas Gleixner <tglx@linutronix.de>2009-11-17 16:46:45 +0100
committerThomas Gleixner <tglx@linutronix.de>2009-12-14 23:55:33 +0100
commit239007b8440abff689632f50cdf0f2b9e895b534 (patch)
tree569cab843af4a999d6d868ec9a824530d2bfa733 /arch/powerpc/sysdev/uic.c
parent9f5a5621e78cf48d86682a71ceb3fcdbde38b222 (diff)
downloadblackbird-op-linux-239007b8440abff689632f50cdf0f2b9e895b534.tar.gz
blackbird-op-linux-239007b8440abff689632f50cdf0f2b9e895b534.zip
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>
Diffstat (limited to 'arch/powerpc/sysdev/uic.c')
-rw-r--r--arch/powerpc/sysdev/uic.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 7d10074b3304..6f220a913e42 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -225,12 +225,12 @@ void uic_irq_cascade(unsigned int virq, struct irq_desc *desc)
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 @@ void uic_irq_cascade(unsigned int virq, struct irq_desc *desc)
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)
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