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authorThomas Gleixner <tglx@linutronix.de>2016-11-04 15:41:41 +0100
committerThomas Gleixner <tglx@linutronix.de>2016-11-09 23:45:28 +0100
commitef65d45cbfbb438a5fbe8ef3fc424314ff1e8b7c (patch)
tree85b17290b1321fd98e96add9f9f06233c58e1711 /arch/s390
parenta4fc1bfc42062e8bc7b2271a90d17403b096ce5d (diff)
downloadlinux-ef65d45cbfbb438a5fbe8ef3fc424314ff1e8b7c.tar.bz2
s390/smp: Make cpu notifier symetric
There is no reason to remove the sysfs cpu files when the CPU is dead, they can be removed when the cpu is prepared to go down. Doing it at DOWN_PREPARE allows us to convert it to a symetric hotplug state in the next step. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: linux-s390@vger.kernel.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20161104144140.lcee6kwmwlx37m7g@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kernel/smp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 35531fe1c5ea..2a9c03df95e9 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1056,9 +1056,10 @@ static int smp_cpu_notify(struct notifier_block *self, unsigned long action,
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_ONLINE:
+ case CPU_DOWN_FAILED:
err = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
break;
- case CPU_DEAD:
+ case CPU_DOWN_PREPARE:
sysfs_remove_group(&s->kobj, &cpu_online_attr_group);
break;
}