Re: EVMS Submission for 2.5

Alexander Viro
2002-10-03T16:15:51Z

On Thu, 3 Oct 2002, Greg KH wrote:

> > Umm... OK. There were some plans to add a notifier chain for such events
> > and EVMS looks like a possible user of that beast. However, it's not
> > obvious whether we need to do any of that in the kernel - we definitely
> > can have userland up and running before _any_ block devices are initialized,
> > so it might be a work for userland helper.
>
> /sbin/hotplug already gets called for _every_ device that is added to
> the system as of 2.5.40, so you should probably use that as your
> userspace notifier event. If there's anything that the /sbin/hotplug
> call misses, that you need for evms, please let me know.

We need it
a) early enough
b) called for things like umem, etc. - random drivers built into
the tree and exporting several block devices.