X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=Documentation%2Fcpu-hotplug.txt;h=1bcf69996c9df74fba87c25949c05285ff604d3b;hb=9464c7cf61b9433057924c36e6e02f303a00e768;hp=bc107cb157a8bba060ce65bb9ded734bfbdd15a8;hpb=41689045f6a3cbe0550e1d34e9cc20d2e8c432ba;p=linux-2.6.git diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index bc107cb15..1bcf69996 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -251,24 +251,16 @@ A: This is what you would need in your kernel code to receive notifications. 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.