On Thu, 12 Dec 2013 18:00:28 +0100 Stef Walter stefw@redhat.com wrote:

As discussed on IRC and elsewhere, I've been working on a LVM addon for udisks. This is mainly so we can get away from our custom patched version of udisks.

This takes Marius' LVM patches and puts them in their own daemon:

https://bugs.freedesktop.org/show_bug.cgi?id=68609

Basic untested implementation here, mostly written today, for the morbidly curious:

https://github.com/stefwalter/udisks-lvm

• I need to test it, just compiled, not run.
• I need to document it.
• I need to make udisks-lvm quit when not in use.

So don't run it ... yet. As I write this a crasher bug popped into my head that I'm sure to while testing. Probably at least a few more days of work before it's in a usable state.

A bit about what's going on. There's a new set of com.redhat.lvw2.xxx interfaces.

Two of them are meant to extend block objects: LogicalVolumeBlock (when a block is an activated logical volume) and PhysicalVolumeBlock (when a block is a configured physical volume). These live at the same object paths in the udisks-lvm daemon as the real blocks in udisksd.

The c.r.l.Manager interface extends the o.f.U.Manager interface, and should live at the same object path.

So at a high level ... I know in discussions with some of you I said this wasn't a viable scheme. That was because I was trying to make things too general previously and cover other technologies. Now that I've limited the scope of this addon to LVM only, I didn't run into any major blockers ... yet :)

Hi Stef, this sounds good for the start IMHO. I'm adding Tomas Bzatek to the cc:, he's the current maintainer of udisks in RHEL and Fedora and I'm pretty sure he is interested in what you guys doing, so please keep him in loop.

We have discussed future of OpenLMI and replacing Blivet with udisks seems to be one of the necessary changes ahead of us.

Thanks and regards,