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, 4 insertions, 4 deletions

diff --git a/arch/arm/mach-ns9xxx/irq.c b/arch/arm/mach-ns9xxx/irq.c
index feb0e54a91de..038f24d47023 100644
--- a/arch/arm/mach-ns9xxx/irq.c
+++ b/arch/arm/mach-ns9xxx/irq.c
@@ -66,7 +66,7 @@ static void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
         struct irqaction *action;
         irqreturn_t action_ret;
 
-        spin_lock(&desc->lock);
+        raw_spin_lock(&desc->lock);
 
         BUG_ON(desc->status & IRQ_INPROGRESS);
 
@@ -78,7 +78,7 @@ static void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
                 goto out_mask;
 
         desc->status |= IRQ_INPROGRESS;
-        spin_unlock(&desc->lock);
+        raw_spin_unlock(&desc->lock);
 
         action_ret = handle_IRQ_event(irq, action);
 
@@ -87,7 +87,7 @@ static void handle_prio_irq(unsigned int irq, struct irq_desc *desc)
          * Maybe this function should go to kernel/irq/chip.c? */
         note_interrupt(irq, desc, action_ret);
 
-        spin_lock(&desc->lock);
+        raw_spin_lock(&desc->lock);
         desc->status &= ~IRQ_INPROGRESS;
 
         if (desc->status & IRQ_DISABLED)
@@ -97,7 +97,7 @@ out_mask:
         /* ack unconditionally to unmask lower prio irqs */
         desc->chip->ack(irq);
 
-        spin_unlock(&desc->lock);
+        raw_spin_unlock(&desc->lock);
 }
 #define handle_irq handle_prio_irq
 #endif