[RFC 1/4] x86: HPET_MSI change IRQ affinity in process context when it is disabled

[venkatesh.pallipadi@intel.com]

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Change the IRQ affinity in the process context when the IRQ is disabled.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>

---
 kernel/irq/manage.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: tip/kernel/irq/manage.c
===================================================================
--- tip.orig/kernel/irq/manage.c	2008-09-05 09:13:51.000000000 -0700
+++ tip/kernel/irq/manage.c	2008-09-05 09:28:01.000000000 -0700
@@ -87,10 +87,11 @@ int irq_set_affinity(unsigned int irq, c
 		return -EINVAL;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
-	if (desc->status & IRQ_MOVE_PCNTXT) {
+	if (desc->status & IRQ_MOVE_PCNTXT || desc->status & IRQ_DISABLED) {
 		unsigned long flags;
 
 		spin_lock_irqsave(&desc->lock, flags);
+		desc->affinity = cpumask;
 		desc->chip->set_affinity(irq, cpumask);
 		spin_unlock_irqrestore(&desc->lock, flags);
 	} else

--