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s390/irq: count cpu restart events

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Count CPU Restart events and make them visible via /proc/interrupts.
Every CPU hotplug (online) event will increase the per cpu counter.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2013-01-02 16:54:12 +01:00
committed by Martin Schwidefsky
parent 420f42ecf4
commit 93f3b2ee0a
3 changed files with 3 additions and 0 deletions
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arch/s390/include/asm/irq.h
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@@ -42,6 +42,7 @@ enum interruption_class {
IRQIO_PCI,
IRQIO_MSI,
NMI_NMI,
CPU_RST,
NR_ARCH_IRQS
};