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x86: Skip migrating IRQF_PER_CPU irqs in fixup_irqs()

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IRQF_PER_CPU means that the irq cannot be moved away from a given
cpu. So it must not be migrated when the cpu goes offline.

[ tglx: massaged changelog ]

Signed-off-by: Fengzhe Zhang <fengzhe.zhang@intel.com>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Link: http://lkml.kernel.org/r/%3C625BA99ED14B2D499DC4E29D8138F1505C8ED7F7E2%40shsmsx502.ccr.corp.intel.com%3E
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Tian, Kevin 2011-05-06 14:43:36 +08:00 committed by Thomas Gleixner
parent 2e9521fd65
commit b87ba87ca2
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/irq.c
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@ -249,7 +249,7 @@ void fixup_irqs(void)
data = irq_desc_get_irq_data(desc);
affinity = data->affinity;
if (!irq_has_action(irq) ||
if (!irq_has_action(irq) || irqd_is_per_cpu(data) ||
cpumask_subset(affinity, cpu_online_mask)) {
raw_spin_unlock(&desc->lock);
continue;