Commit 11b8bf01 authored by Satyam Sharma's avatar Satyam Sharma Committed by Martin Schwidefsky

[S390] appldata_base: Misc cpuinit annotations and bugfix

appldata_offline_cpu() is only called from __cpuinit-marked hotplug
notifier callback and from the __exit-marked module_exit function,
therefore candidate for __cpuexit.

BTW the __exit module_exit function appldata_exit() of this driver fails to
unregister_hotcpu_notifier() the notifier_block that was registered by
appldata_init() during module startup.  This will lead to oops if hotplug
notification comes after module has been unloaded.  Let's fix this by
unregistering the notifier appropriately (before appldata_offline_cpu()'ing
the CPUs).
Signed-off-by: default avatarSatyam Sharma <satyam@infradead.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 2af48080
......@@ -547,8 +547,7 @@ static void __cpuinit appldata_online_cpu(int cpu)
spin_unlock(&appldata_timer_lock);
}
static void
appldata_offline_cpu(int cpu)
static void __cpuexit appldata_offline_cpu(int cpu)
{
del_virt_timer(&per_cpu(appldata_timer, cpu));
if (atomic_dec_and_test(&appldata_expire_count)) {
......@@ -560,9 +559,9 @@ appldata_offline_cpu(int cpu)
spin_unlock(&appldata_timer_lock);
}
static int __cpuinit
appldata_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
static int __cpuinit appldata_cpu_notify(struct notifier_block *self,
unsigned long action,
void *hcpu)
{
switch (action) {
case CPU_ONLINE:
......@@ -646,6 +645,8 @@ static void __exit appldata_exit(void)
}
spin_unlock(&appldata_ops_lock);
unregister_hotcpu_notifier(&appldata_nb);
for_each_online_cpu(i)
appldata_offline_cpu(i);
......
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