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authorHeiko Carstens <heiko.carstens@de.ibm.com>2019-06-03 15:22:25 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2019-06-07 10:09:42 +0200
commit3e8eb22faee179798530b6a3d2639629fcf9d580 (patch)
tree84c5a8fe20931574efa4a76d667c3c13b05d4db8 /arch/s390/Kconfig
parents390: enforce CONFIG_SMP (diff)
downloadlinux-dev-3e8eb22faee179798530b6a3d2639629fcf9d580.tar.xz
linux-dev-3e8eb22faee179798530b6a3d2639629fcf9d580.zip
s390: enforce CONFIG_HOTPLUG_CPU
x86 and powerpc (partially) enforce already CONFIG_HOTPLUG_CPU. On s390 it is enabled on all distributions by default since ages. The only exception is our zfcpdump kernel. However to simplify testing, enforce HOTPLUG_CPU. This was suggested by Paul McKenney, since his rcutorture test environments for CONFIG_SMP=y only support HOTPLUG_CPU=y. Suggested-by: Paul E. McKenney <paulmck@linux.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index bdf3b5fdea53..66be2d813951 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -413,11 +413,6 @@ config NR_CPUS
config HOTPLUG_CPU
def_bool y
- prompt "Support for hot-pluggable CPUs"
- help
- Say Y here to be able to turn CPUs off and on. CPUs
- can be controlled through /sys/devices/system/cpu/cpu#.
- Say N if you want to disable CPU hotplug.
# Some NUMA nodes have memory ranges that span
# other nodes. Even though a pfn is valid and