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, 3 insertions, 3 deletions

diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index dab4d393908c..95ac77aeae9b 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -793,12 +793,12 @@ iosapic_register_intr (unsigned int gsi,
                         goto unlock_iosapic_lock;
         }
 
-        spin_lock(&irq_desc[irq].lock);
+        raw_spin_lock(&irq_desc[irq].lock);
         dest = get_target_cpu(gsi, irq);
         dmode = choose_dmode();
         err = register_intr(gsi, irq, dmode, polarity, trigger);
         if (err < 0) {
-                spin_unlock(&irq_desc[irq].lock);
+                raw_spin_unlock(&irq_desc[irq].lock);
                 irq = err;
                 goto unlock_iosapic_lock;
         }
@@ -817,7 +817,7 @@ iosapic_register_intr (unsigned int gsi,
                (polarity == IOSAPIC_POL_HIGH ? "high" : "low"),
                cpu_logical_id(dest), dest, irq_to_vector(irq));
 
-        spin_unlock(&irq_desc[irq].lock);
+        raw_spin_unlock(&irq_desc[irq].lock);
  unlock_iosapic_lock:
         spin_unlock_irqrestore(&iosapic_lock, flags);
         return irq;