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authorThomas Gleixner <tglx@linutronix.de>2011-07-19 16:25:42 +0200
committerThomas Gleixner <tglx@linutronix.de>2011-09-13 23:44:53 +0200
commit477694e71113fd0694b6bb0bcc2d006b8ac62691 (patch)
tree9ccfa37503514fa53ce26403ccf310d1586ea6e3 /drivers/iommu
parented585a651681e822089087b426e6ebfb6d3d9873 (diff)
downloadlinux-477694e71113fd0694b6bb0bcc2d006b8ac62691.tar.bz2
x86, iommu: Mark DMAR IRQ as non-threaded
Mark this lowlevel IRQ handler as non-threaded. This prevents a boot crash when "threadirqs" is on the kernel commandline. Also the interrupt handler is handling hardware critical events which should not be delayed into a thread. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/dmar.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 3dc9befa5aec..6dcc7e2d54de 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1388,7 +1388,7 @@ int dmar_set_interrupt(struct intel_iommu *iommu)
return ret;
}
- ret = request_irq(irq, dmar_fault, 0, iommu->name, iommu);
+ ret = request_irq(irq, dmar_fault, IRQF_NO_THREAD, iommu->name, iommu);
if (ret)
printk(KERN_ERR "IOMMU: can't request irq\n");
return ret;