From a52572ddcd3d16cc5ccc9679bcbb7256d0ddad84 Mon Sep 17 00:00:00 2001 From: Nathan Fontenot Date: Thu, 7 Feb 2008 07:37:26 +1100 Subject: [PATCH] [POWERPC] Update irq descriptor affinity The affinity mask in the virq descriptor needs to be set before we reset the affinity for the virq. Without doing this the call to get the new irq server fails and we end up leaving the virq pinned to the cpu we are removing. This does not fail the cpu remove from the kernel, but it does prevent cpu dlpar remove operations from returning the cpu to the hypervisor. Signed-off-by: Nathan Fontenot Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/pseries/xics.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 8f8dd9c..00e9d29 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -880,8 +880,8 @@ void xics_migrate_irqs_away(void) virq, cpu); /* Reset affinity to all cpus */ + irq_desc[virq].affinity = CPU_MASK_ALL; desc->chip->set_affinity(virq, CPU_MASK_ALL); - irq_desc[irq].affinity = CPU_MASK_ALL; unlock: spin_unlock_irqrestore(&desc->lock, flags); } -- 2.7.4