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Commit b87ba87c authored by Tian, Kevin's avatar Tian, Kevin Committed by Thomas Gleixner
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x86: Skip migrating IRQF_PER_CPU irqs in fixup_irqs() 



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: default avatarFengzhe Zhang <fengzhe.zhang@intel.com>
Signed-off-by: default avatarKevin 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: default avatarThomas Gleixner <tglx@linutronix.de>
parent 2e9521fd

arch/x86/kernel/irq.c

+1 −1
Original line number Diff line number Diff line
@@ -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;