Messages in this thread | | | Date | Tue, 18 May 2004 22:16:12 -0700 | From | Greg KH <> | Subject | Re: [RFC] sysfs kobject that doesn't trigger hotplug events |
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On Wed, May 19, 2004 at 12:43:47AM -0400, John Zielinski wrote: > Greg KH wrote: > > >Your patch is not needed at all. Please read the first comment in the > >kobject_hotplug() function to see how to prevent kobjects from creating > >hotplug events. > > > > > > You mean this one? > > /* If this kobj does not belong to a kset, try to find a parent that does */
Oops, sorry, I meant the one in kset_hotplug() which is called by kobject_hotplug() that says: /* If the kset has a filter operation, call it. If it * returns failure, no hotplug event is required. */
> The problem I saw with that is even though my kobject won't have a kset, > my kobject's parent (or grandparent) may and I'll trigger that one. I'm > not creating a new device driver, just extending one so I won't have > control over that kobject's lineage.
So why are you creating a kobject, and not just attributes?
> The other way is to create a subsystem using subsytem_init but not to > add it to the sysfs tree and then add my kobject to that kset and use > the kset's hotplug filter to stop the hotplug events. This would > require extra code and a little bit more memory usage for that kset, but > I believe that would work. Any drawbacks to this method? > > Or am I missing something?
What exactly are you wanting to do? How about we start there.
thanks,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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