return NOTIFY_OK;
}
- static struct notifier_block __cpuinitdata foobar_cpu_notifer =
+ static struct notifier_block foobar_cpu_notifer =
{
.notifier_call = foobar_cpu_callback,
};
-You need to call register_cpu_notifier() from your init function.
-Init functions could be of two types:
-1. early init (init function called when only the boot processor is online).
-2. late init (init function called _after_ all the CPUs are online).
-For the first case, you should add the following to your init function
+In your init function,
register_cpu_notifier(&foobar_cpu_notifier);
-For the second case, you should add the following to your init function
-
- register_hotcpu_notifier(&foobar_cpu_notifier);
-
You can fail PREPARE notifiers if something doesn't work to prepare resources.
This will stop the activity and send a following CANCELED event back.