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-rw-r--r--include/linux/irq.h49
-rw-r--r--kernel/irq/Makefile3
-rw-r--r--kernel/irq/migration.c52
3 files changed, 55 insertions, 49 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 6c5d4c898ccb..ee2a82a572f7 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -114,53 +114,8 @@ static inline void set_native_irq_info(int irq, cpumask_t mask)
#if defined (CONFIG_GENERIC_PENDING_IRQ) || defined (CONFIG_IRQBALANCE)
extern cpumask_t pending_irq_cpumask[NR_IRQS];
-static inline void set_pending_irq(unsigned int irq, cpumask_t mask)
-{
- irq_desc_t *desc = irq_desc + irq;
- unsigned long flags;
-
- spin_lock_irqsave(&desc->lock, flags);
- desc->move_irq = 1;
- pending_irq_cpumask[irq] = mask;
- spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-static inline void
-move_native_irq(int irq)
-{
- cpumask_t tmp;
- irq_desc_t *desc = irq_descp(irq);
-
- if (likely (!desc->move_irq))
- return;
-
- desc->move_irq = 0;
-
- if (likely(cpus_empty(pending_irq_cpumask[irq])))
- return;
-
- if (!desc->handler->set_affinity)
- return;
-
- /* note - we hold the desc->lock */
- cpus_and(tmp, pending_irq_cpumask[irq], cpu_online_map);
-
- /*
- * If there was a valid mask to work with, please
- * do the disable, re-program, enable sequence.
- * This is *not* particularly important for level triggered
- * but in a edge trigger case, we might be setting rte
- * when an active trigger is comming in. This could
- * cause some ioapics to mal-function.
- * Being paranoid i guess!
- */
- if (unlikely(!cpus_empty(tmp))) {
- desc->handler->disable(irq);
- desc->handler->set_affinity(irq,tmp);
- desc->handler->enable(irq);
- }
- cpus_clear(pending_irq_cpumask[irq]);
-}
+void set_pending_irq(unsigned int irq, cpumask_t mask);
+void move_native_irq(int irq);
#ifdef CONFIG_PCI_MSI
/*
diff --git a/kernel/irq/Makefile b/kernel/irq/Makefile
index 49378738ff5e..2b33f852be3e 100644
--- a/kernel/irq/Makefile
+++ b/kernel/irq/Makefile
@@ -1,5 +1,4 @@
-obj-y := handle.o manage.o spurious.o
+obj-y := handle.o manage.o spurious.o migration.o
obj-$(CONFIG_GENERIC_IRQ_PROBE) += autoprobe.o
obj-$(CONFIG_PROC_FS) += proc.o
-
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
new file mode 100644
index 000000000000..6bdd03c524c7
--- /dev/null
+++ b/kernel/irq/migration.c
@@ -0,0 +1,52 @@
+#include <linux/irq.h>
+
+#if defined(CONFIG_GENERIC_PENDING_IRQ)
+
+void set_pending_irq(unsigned int irq, cpumask_t mask)
+{
+ irq_desc_t *desc = irq_desc + irq;
+ unsigned long flags;
+
+ spin_lock_irqsave(&desc->lock, flags);
+ desc->move_irq = 1;
+ pending_irq_cpumask[irq] = mask;
+ spin_unlock_irqrestore(&desc->lock, flags);
+}
+
+void move_native_irq(int irq)
+{
+ cpumask_t tmp;
+ irq_desc_t *desc = irq_descp(irq);
+
+ if (likely (!desc->move_irq))
+ return;
+
+ desc->move_irq = 0;
+
+ if (likely(cpus_empty(pending_irq_cpumask[irq])))
+ return;
+
+ if (!desc->handler->set_affinity)
+ return;
+
+ /* note - we hold the desc->lock */
+ cpus_and(tmp, pending_irq_cpumask[irq], cpu_online_map);
+
+ /*
+ * If there was a valid mask to work with, please
+ * do the disable, re-program, enable sequence.
+ * This is *not* particularly important for level triggered
+ * but in a edge trigger case, we might be setting rte
+ * when an active trigger is comming in. This could
+ * cause some ioapics to mal-function.
+ * Being paranoid i guess!
+ */
+ if (unlikely(!cpus_empty(tmp))) {
+ desc->handler->disable(irq);
+ desc->handler->set_affinity(irq,tmp);
+ desc->handler->enable(irq);
+ }
+ cpus_clear(pending_irq_cpumask[irq]);
+}
+
+#endif

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