Commit cadfce72 authored Jul 24, 2011 by Jan Glauber Committed by Martin Schwidefsky Jul 24, 2011

[S390] disable cpu measurement alerts on a dying cpu



The cpu measurement alerts that are used for instance by oprofile
for hardware sampling are not turned off on a cpu that is going
offline. Add the appropriate control register bit that should be
disabled to the list.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent c76e70d3

arch/s390/kernel/smp.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -654,7 +654,8 @@ int __cpu_disable(void)
		/* disable all external interrupts */
		cr_parms.orvals[0] = 0;
		cr_parms.andvals[0] = ~(1 << 15 \| 1 << 14 \| 1 << 13 \| 1 << 11 \|
		1 << 10 \| 1 << 9 \| 1 << 6 \| 1 << 4);
		1 << 10 \| 1 << 9 \| 1 << 6 \| 1 << 5 \|
		1 << 4);
		/* disable all I/O interrupts */
		cr_parms.orvals[6] = 0;
		cr_parms.andvals[6] = ~(1 << 31 \| 1 << 30 \| 1 << 29 \| 1 << 28 \|