cgroups: add cpu_relax() calls in css_tryget() and cgroup_clear_css_refs()

[safe/jmp/linux-2.6] / kernel / irq / handle.c

diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 157c04c..3aba8d1 100644 (file)
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -39,6 +39,18 @@ 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
@@ -86,11 +98,6 @@ void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr)
                desc->kstat_irqs = (unsigned int *)ptr;
 }
 
-int __weak arch_init_chip_data(struct irq_desc *desc, int cpu)
-{
-       return 0;
-}
-
 static void init_one_irq_desc(int irq, struct irq_desc *desc, int cpu)
 {
        memcpy(desc, &irq_desc_init, sizeof(struct irq_desc));
@@ -139,6 +146,8 @@ int __init early_irq_init(void)
        int legacy_count;
        int i;
 
+       init_irq_default_affinity();
+
        desc = irq_desc_legacy;
        legacy_count = ARRAY_SIZE(irq_desc_legacy);
 
@@ -224,6 +233,8 @@ int __init early_irq_init(void)
        int count;
        int i;
 
+       init_irq_default_affinity();
+
        desc = irq_desc;
        count = ARRAY_SIZE(irq_desc);