On Thu, Apr 21, 2005 at 08:46:56PM +0200, Pavel Machek wrote:
> Hi!
>
> > We already do kobject_hotplug for cpu offline; this adds a
> > kobject_hotplug call for the online case. This is being requested by
> > developers of an application which wants to be notified about both
> > kinds of events.
>
> I'm afraid of bad interactions with swsusp/S3 on smp. We offline cpus there,
> but we probably do not want userland to know...
The kobject_hotplug calls for cpu online and offline are present only
in the code paths where the operation is initiated through the sysfs
interface, so I don't think you have to worry.
Nathan
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