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From: | Eric Blake |
Subject: | Re: [PATCH v5 4/5] qemu-img: Add convert --bitmaps option |
Date: | Thu, 21 May 2020 10:19:40 -0500 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 |
On 5/21/20 10:11 AM, Nir Soffer wrote:
On Thu, May 21, 2020 at 1:01 AM Eric Blake <address@hidden> 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
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