s390: enforce CONFIG_HOTPLUG_CPU

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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>

...

This commit is contained in:

Heiko Carstens 2019-06-03 15:22:25 +02:00

parent 67626fadd2

commit 3e8eb22fae

3 changed files with 0 additions and 29 deletions

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5

arch/s390/Kconfig

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5

arch/s390/include/asm/smp.h

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19

arch/s390/kernel/smp.c

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