From: Eric Blake <eblake@redhat.com>
To: Nir Soffer <nsoffer@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
QEMU Developers <qemu-devel@nongnu.org>,
qemu-block <qemu-block@nongnu.org>, Max Reitz <mreitz@redhat.com>
Subject: Re: [PATCH v5 4/5] qemu-img: Add convert --bitmaps option
Date: Thu, 21 May 2020 10:19:40 -0500 [thread overview]
Message-ID: <3de9e06c-27e6-c852-8556-1b1415e1b272@redhat.com> (raw)
In-Reply-To: <CAMRbyyvYifirLrb6kTej6mUPBnhr8rsFOx-QeMGDrWG=Zi4i0Q@mail.gmail.com>
On 5/21/20 10:11 AM, Nir Soffer wrote:
> On Thu, May 21, 2020 at 1:01 AM Eric Blake <eblake@redhat.com> wrote:
>>
>> Make it easier to copy all the persistent bitmaps of (the top layer
>> of) a source image along with its guest-visible contents, by adding a
>> boolean flag for use with qemu-img convert. This is basically
>> shorthand, as the same effect could be accomplished with a series of
>> 'qemu-img bitmap --add' and 'qemu-img bitmap --merge -b source'
>> commands, or by QMP commands.
>>
>> Note that this command will fail in the same scenarios where 'qemu-img
>> measure --bitmaps' fails, when either the source or the destanation
destination
>> lacks persistent bitmap support altogether.
>
> If we remove --bitmaps option from qemu-img measure, we need to remove
> this note.
Or rather, adjust it to state that "this command will fail in the
scenarios where 'qemu-img measure' omits a 'bitmaps size:' output line.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
next prev parent reply other threads:[~2020-05-21 15:20 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 22:01 [PATCH v5 0/5] qemu-img: Add convert --bitmaps Eric Blake
2020-05-20 22:01 ` [PATCH v5 1/5] iotests: Fix test 178 Eric Blake
2020-05-21 11:31 ` Vladimir Sementsov-Ogievskiy
2020-05-20 22:01 ` [PATCH v5 2/5] qcow2: Expose bitmaps' size during measure Eric Blake
2020-05-20 23:00 ` Nir Soffer
2020-05-21 11:40 ` Vladimir Sementsov-Ogievskiy
2020-05-21 13:29 ` Nir Soffer
2020-05-21 15:09 ` Vladimir Sementsov-Ogievskiy
2020-05-21 16:28 ` Nir Soffer
2020-05-21 13:08 ` Eric Blake
2020-05-21 13:17 ` Nir Soffer
2020-05-21 13:29 ` Eric Blake
2020-05-20 22:01 ` [PATCH v5 3/5] qemu-img: Factor out code for merging bitmaps Eric Blake
2020-05-20 22:01 ` [PATCH v5 4/5] qemu-img: Add convert --bitmaps option Eric Blake
2020-05-21 15:11 ` Nir Soffer
2020-05-21 15:19 ` Eric Blake [this message]
2020-05-20 22:01 ` [PATCH v5 5/5] iotests: Add test 291 to for qemu-img bitmap coverage Eric Blake
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