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Diffstat (limited to 'kernel/irq/handle.c')
-rw-r--r--kernel/irq/handle.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 375d68cd5bf..f51eaee921b 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -40,6 +40,18 @@ void handle_bad_irq(unsigned int irq, struct irq_desc *desc)
ack_bad_irq(irq);
}
+#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
+static void __init init_irq_default_affinity(void)
+{
+ alloc_bootmem_cpumask_var(&irq_default_affinity);
+ cpumask_setall(irq_default_affinity);
+}
+#else
+static void __init init_irq_default_affinity(void)
+{
+}
+#endif
+
/*
* Linux has a controller-independent interrupt architecture.
* Every controller has a 'controller-template', that is used
@@ -133,6 +145,8 @@ int __init early_irq_init(void)
int legacy_count;
int i;
+ init_irq_default_affinity();
+
/* initialize nr_irqs based on nr_cpu_ids */
arch_probe_nr_irqs();
printk(KERN_INFO "NR_IRQS:%d nr_irqs:%d\n", NR_IRQS, nr_irqs);
@@ -229,6 +243,8 @@ int __init early_irq_init(void)
int count;
int i;
+ init_irq_default_affinity();
+
printk(KERN_INFO "NR_IRQS:%d\n", NR_IRQS);
desc = irq_desc;