From 6721f77810dfcb7cbf8e97be6fa43fe2740dd0aa Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 9 Jan 2007 10:18:44 +0100
Subject: [PATCH] [S390] Fix cpu hotplug (missing 'online' attribute).
72486f1f8f0a2bc828b9d30cf4690cf2dd6807fc inverts the logic if an
'online' attribute in /sys/devices/system/cpu/cpuX should appear.
So we end up with no hotpluggable cpus at all...
Set the hotpluggable value to one to make sure the online
attribute appears again.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
arch/s390/kernel/smp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 19090f7d4f517..c0cd255fddbd0 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -794,7 +794,10 @@ static int __init topology_init(void)
int ret;
for_each_possible_cpu(cpu) {
- ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu);
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+ c->hotpluggable = 1;
+ ret = register_cpu(c, cpu);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
"failed (%d)\n", cpu, ret);
--
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