[libvirt] [PATCH 0/2] qemu: Enable -blockdev support (blockdev-add saga)

[Peter Krempa]

On Mon, Sep 16, 2019 at 16:29:01 +0200, Kevin Wolf wrote:
> Am 16.09.2019 um 11:32 hat Peter Krempa geschrieben:

[...]

> > > I'd only be in favour of enabling it if there is some clear time frame
> > > on whicht hat bug above is likely to be fixed. I'm guesing it is pretty
> > > unlikely to be fixed before our freeze, so I thinking speculatively
> > > enabling it is premature.
> > 
> > I'm not sure. Kevin, any idea when we can expect the fix?
> > 
> > Otherwise the only option to enable blockdev would be to just enable it
> > and blame qemu for internal snapshots not working.
> 
> The main problem with implementing a fix was that it's unclear what the
> desired result even is. After some discussion with Max, I think we'll
> try it with restricting snapshotting to everything that is directly
> attached to a BlockBackend and monitor-owned nodes that don't have any
> parents.

Yes that is what I would expect as well, and possibly also consistent
with a 'drive_add with if=none' being used but not the corresponding
-device. (thus no frontend).
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