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From: Eric Blake <eblake@redhat.com>
To: Max Reitz <mreitz@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
	qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 1/3] block: Image file option amendment
Date: Wed, 28 Aug 2013 06:22:09 -0600	[thread overview]
Message-ID: <521DEB71.1030507@redhat.com> (raw)
In-Reply-To: <1377677336-15804-2-git-send-email-mreitz@redhat.com>

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On 08/28/2013 02:08 AM, Max Reitz wrote:
> This patch adds the "amend" option to qemu-img which allows changing
> image options on existing image files. It also adds the generic bdrv
> implementation which is basically just a wrapper for the image format
> specific function.
> 

> +
> +@item amend [-f @var{fmt}] -o @var{options} @var{filename}
> +
> +Amends the image format specific @var{options} for the image file
> +@var{filename}. Only the format @code{qcow2} supports this.

The flattening of implicit zero clusters into explicit may take a
significant amount of time; please consider adding support for -p
(progress meter) as part of this addition.  (I'm already bothered by the
fact that the 'commit' operation lacks a progress meter; and even
'check' might have cases where it could be long-running)

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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  parent reply	other threads:[~2013-08-28 12:22 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-28  8:08 [Qemu-devel] [PATCH 0/3] block/qcow2: Image file option amendment Max Reitz
2013-08-28  8:08 ` [Qemu-devel] [PATCH 1/3] block: " Max Reitz
2013-08-28 10:03   ` Kevin Wolf
2013-08-28 12:22   ` Eric Blake [this message]
2013-08-28 12:26     ` Kevin Wolf
2013-08-28  8:08 ` [Qemu-devel] [PATCH 2/3] qcow2: Implement bdrv_amend_options Max Reitz
2013-08-28 11:06   ` Kevin Wolf
2013-08-28 11:39     ` Max Reitz
2013-08-28 11:48       ` Kevin Wolf
2013-08-28 12:05         ` Max Reitz
2013-08-28 12:12           ` Kevin Wolf
2013-08-28  8:08 ` [Qemu-devel] [PATCH 3/3] qemu-iotest: qcow2 image option amendment Max Reitz
2013-08-28 11:40   ` Kevin Wolf
2013-08-28 11:47     ` Max Reitz
2013-08-28 11:54       ` Kevin Wolf
2013-08-28 12:06         ` Max Reitz

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