s390/irq: count cpu restart events
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Wed, 2 Jan 2013 15:54:12 +0000 (16:54 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 8 Jan 2013 09:57:07 +0000 (10:57 +0100)
commit93f3b2ee0abff5438e74cc90cf816429248cc8eb
treed637ecbd55415b1e4fbc18122393b033febdf70c
parent420f42ecf48a926ba775ec7d7294425f004b6ade
s390/irq: count cpu restart events

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>
arch/s390/include/asm/irq.h
arch/s390/kernel/irq.c
arch/s390/kernel/smp.c