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, 6 insertions, 6 deletions

diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index c9a8619f3856..b7cb45bb91e8 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -69,7 +69,7 @@ int show_interrupts(struct seq_file *p, void *v)
         }
 
         if (i < NR_IRQS) {
-                spin_lock_irqsave(&irq_desc[i].lock, flags);
+                raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
                 action = irq_desc[i].action;
                 if (!action)
                         goto unlock;
@@ -84,7 +84,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
                 seq_putc(p, '\n');
 unlock:
-                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+                raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
         } else if (i == NR_IRQS) {
 #ifdef CONFIG_FIQ
                 show_fiq_list(p, v);
@@ -139,7 +139,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
         }
 
         desc = irq_desc + irq;
-        spin_lock_irqsave(&desc->lock, flags);
+        raw_spin_lock_irqsave(&desc->lock, flags);
         desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
         if (iflags & IRQF_VALID)
                 desc->status &= ~IRQ_NOREQUEST;
@@ -147,7 +147,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
                 desc->status &= ~IRQ_NOPROBE;
         if (!(iflags & IRQF_NOAUTOEN))
                 desc->status &= ~IRQ_NOAUTOEN;
-        spin_unlock_irqrestore(&desc->lock, flags);
+        raw_spin_unlock_irqrestore(&desc->lock, flags);
 }
 
 void __init init_IRQ(void)
@@ -166,9 +166,9 @@ static void route_irq(struct irq_desc *desc, unsigned int irq, unsigned int cpu)
 {
         pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->node, cpu);
 
-        spin_lock_irq(&desc->lock);
+        raw_spin_lock_irq(&desc->lock);
         desc->chip->set_affinity(irq, cpumask_of(cpu));
-        spin_unlock_irq(&desc->lock);
+        raw_spin_unlock_irq(&desc->lock);
 }
 
 /*