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Re: [Qemu-devel] [PATCH v22 00/30] qcow2: persistent dirty bitmaps

From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH v22 00/30] qcow2: persistent dirty bitmaps
Date: Fri, 17 Nov 2017 10:56:13 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

On 11/17/2017 10:17 AM, Vladimir Sementsov-Ogievskiy wrote:

>> Nothing in this series touched qemu-img.  At the very minimum, it would
>> be nice if 'qemu-img info' were to display a summary of all bitmaps in
>> the qcow2 file; the QMP type ImageInfoSpecificQCow2 should be updated to
>> mention this information, and qemu-img updated to output it.  Being able
>> to create and remove persistent bitmaps from an at-rest qcow2 file
>> without having to fire up qemu to issue QMP commands to do so would also
>> be nice.
>> It's a bit late for getting this request into 2.12, but had it been

Make that "too late for 2.11"

>> available, it would make my work at testing that 'qemu-img commit'
>> doesn't corrupt persistent bitmaps.
> You are right, this is needed, but I can't promise something for the
> nearest future..

And as we both agree it is work for 2.12 or later, it is not needed
right away; so we have a couple of months.

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

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