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| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2011-07-24 10:48:30 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-07-24 10:48:22 +0200 |
| commit | cadfce72778e9417baff117bb563a1c2f8fef97b (patch) | |
| tree | 998556e78b2e6bd8f17aeac7a32ee3fd4f087871 /arch | |
| parent | [S390] initial cr0 bits (diff) | |
| download | linux-cadfce72778e9417baff117bb563a1c2f8fef97b.tar.xz linux-cadfce72778e9417baff117bb563a1c2f8fef97b.zip | |
[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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/kernel/smp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 1d55c95f617c..a6d85c0a7f20 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -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 | |