Re: [Qemu-devel] [RFC PATCH 00/10] x-blockdev-create for qcow2

[Kevin Wolf <kwolf@redhat.com>]

Am 11.01.2018 um 20:52 hat Kevin Wolf geschrieben:
> This series implements a minimal QMP command that allows to create an
> image format on a given block node. The interface is still going to
> change to some kind of an async command (possibly a block job), so I
> prefixed x- for now.
> 
> At this point, I'm mostly interested in comments about
> BlockdevCreateOptions in the schema, the .bdrv_co_create callback and
> the way that legacy .bdrv_create is implemented in qcow2 now.
> 
> It looks to me as if we will have to keep .bdrv_create in addition to
> the new .bdrv_co_create for a while in all drivers, where the
> implementation of .bdrv_create would call .bdrv_co_create like this
> series does it for qcow2. We'll only be able to drop the old interface
> after deprecating and eventually removing all of the driver-specific
> compatibility work that remains. The example of qcow2 shows that the
> "translation" from old to new is managable, but there are a few
> differences.

Peter? Eric? Any opinions so far?

Kevin