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Re: [Qemu-block] [PATCH 3/7] qcow: Support .bdrv_co_create

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH 3/7] qcow: Support .bdrv_co_create
Date: Fri, 9 Mar 2018 15:58:55 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 03/09/2018 03:46 PM, Kevin Wolf wrote:
This adds the .bdrv_co_create driver callback to qcow, which
enables image creation over QMP.

Signed-off-by: Kevin Wolf <address@hidden>
  qapi/block-core.json |  21 +++++-
  block/qcow.c         | 196 ++++++++++++++++++++++++++++++++++-----------------
  2 files changed, 150 insertions(+), 67 deletions(-)

Pre-review question: do we REALLY want to support creation of new qcow images from QMP? Or are we at the point where we want to declare qcow a read-only format where we only support it to the extent that you can convert an existing qcow file into a better supported format like qcow2?

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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