From: Heiko Carstens <[email protected]>
Replace smp_processor_id() with any_online_cpu(cpu_online_map) in order
to avoid lots of
"BUG: using smp_processor_id() in preemptible [00000001] code:..."
messages in case taking a cpu online fails.
Signed-off-by: Heiko Carstens <[email protected]>
---
diffstat:
kernel/sched.c | 3 ++-
kernel/softirq.c | 3 ++-
kernel/softlockup.c | 3 ++-
kernel/workqueue.c | 2 +-
4 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index 340dd23..d94ceef 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4680,7 +4680,8 @@ static int migration_call(struct notifie
#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
/* Unbind it from offline cpu so it can run. Fall thru. */
- kthread_bind(cpu_rq(cpu)->migration_thread,smp_processor_id());
+ kthread_bind(cpu_rq(cpu)->migration_thread,
+ any_online_cpu(cpu_online_map));
kthread_stop(cpu_rq(cpu)->migration_thread);
cpu_rq(cpu)->migration_thread = NULL;
break;
diff --git a/kernel/softirq.c b/kernel/softirq.c
index f766b2f..ad3295c 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -470,7 +470,8 @@ static int __devinit cpu_callback(struct
#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
/* Unbind so it can run. Fall thru. */
- kthread_bind(per_cpu(ksoftirqd, hotcpu), smp_processor_id());
+ kthread_bind(per_cpu(ksoftirqd, hotcpu),
+ any_online_cpu(cpu_online_map));
case CPU_DEAD:
p = per_cpu(ksoftirqd, hotcpu);
per_cpu(ksoftirqd, hotcpu) = NULL;
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 7597620..a2dcceb 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -123,7 +123,8 @@ cpu_callback(struct notifier_block *nfb,
#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
/* Unbind so it can run. Fall thru. */
- kthread_bind(per_cpu(watchdog_task, hotcpu), smp_processor_id());
+ kthread_bind(per_cpu(watchdog_task, hotcpu),
+ any_online_cpu(cpu_online_map));
case CPU_DEAD:
p = per_cpu(watchdog_task, hotcpu);
per_cpu(watchdog_task, hotcpu) = NULL;
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 7cee222..42df83d 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -524,7 +524,7 @@ static int __devinit workqueue_cpu_callb
list_for_each_entry(wq, &workqueues, list) {
/* Unbind so it can run. */
kthread_bind(per_cpu_ptr(wq->cpu_wq, hotcpu)->thread,
- smp_processor_id());
+ any_online_cpu(cpu_online_map));
cleanup_workqueue_thread(wq, hotcpu);
}
break;
-
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