Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux...

[pandora-kernel.git] / arch / x86 / kernel / irqinit_64.c

diff --git a/arch/x86/kernel/irqinit_64.c b/arch/x86/kernel/irqinit_64.c
index 8670b3c..31ebfe3 100644 (file)
--- a/arch/x86/kernel/irqinit_64.c
+++ b/arch/x86/kernel/irqinit_64.c
@@ -69,6 +69,18 @@ DEFINE_PER_CPU(vector_irq_t, vector_irq) = {
        [IRQ15_VECTOR + 1 ... NR_VECTORS - 1] = -1
 };
 
+int vector_used_by_percpu_irq(unsigned int vector)
+{
+       int cpu;
+
+       for_each_online_cpu(cpu) {
+               if (per_cpu(vector_irq, cpu)[vector] != -1)
+                       return 1;
+       }
+
+       return 0;
+}
+
 void __init init_ISA_irqs(void)
 {
        int i;
@@ -76,8 +88,7 @@ void __init init_ISA_irqs(void)
        init_bsp_APIC();
        init_8259A(0);
 
-       for (i = 0; i < 16; i++) {
-               /* first time call this irq_desc */
+       for (i = 0; i < NR_IRQS_LEGACY; i++) {
                struct irq_desc *desc = irq_to_desc(i);
 
                desc->status = IRQ_DISABLED;
@@ -122,6 +133,7 @@ static void __init smp_intr_init(void)
 
        /* Low priority IPI to cleanup after moving an irq */
        set_intr_gate(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt);
+       set_bit(IRQ_MOVE_CLEANUP_VECTOR, used_vectors);
 #endif
 }