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>

1 files changed, 7 insertions, 7 deletions

diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index e49ea1c..89fb90a 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -28,7 +28,7 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 	struct irqaction *action;
 	int ok = 0, work = 0;
 
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	/* Already running on another processor */
 	if (desc->status & IRQ_INPROGRESS) {
 		/*
@@ -37,13 +37,13 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 		 */
 		if (desc->action && (desc->action->flags & IRQF_SHARED))
 			desc->status |= IRQ_PENDING;
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 		return ok;
 	}
 	/* Honour the normal IRQ locking */
 	desc->status |= IRQ_INPROGRESS;
 	action = desc->action;
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	while (action) {
 		/* Only shared IRQ handlers are safe to call */
@@ -56,7 +56,7 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 	}
 	local_irq_disable();
 	/* Now clean up the flags */
-	spin_lock(&desc->lock);
+	raw_spin_lock(&desc->lock);
 	action = desc->action;
 
 	/*
@@ -68,9 +68,9 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 		 * Perform real IRQ processing for the IRQ we deferred
 		 */
 		work = 1;
-		spin_unlock(&desc->lock);
+		raw_spin_unlock(&desc->lock);
 		handle_IRQ_event(irq, action);
-		spin_lock(&desc->lock);
+		raw_spin_lock(&desc->lock);
 		desc->status &= ~IRQ_PENDING;
 	}
 	desc->status &= ~IRQ_INPROGRESS;
@@ -80,7 +80,7 @@ static int try_one_irq(int irq, struct irq_desc *desc)
 	 */
 	if (work && desc->chip && desc->chip->end)
 		desc->chip->end(irq);
-	spin_unlock(&desc->lock);
+	raw_spin_unlock(&desc->lock);
 
 	return ok;
 }