From: Kevin Wolf <kwolf@redhat.com>
To: Max Reitz <mreitz@redhat.com>
Cc: qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v13 11/14] qemu-img: Specify backing file for commit
Date: Thu, 23 Oct 2014 15:05:22 +0200 [thread overview]
Message-ID: <20141023130522.GP3522@noname.redhat.com> (raw)
In-Reply-To: <1413982283-10186-12-git-send-email-mreitz@redhat.com>
Am 22.10.2014 um 14:51 hat Max Reitz geschrieben:
> Introduce a new parameter for qemu-img commit which may be used to
> explicitly specify the backing file into which an image should be
> committed if the backing chain has more than a single layer.
>
> Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
> +If the backing chain of the given image file @var{filename} has more than one
> +layer, the backing file into which the changes will be committed may be
> +specified as @var{base} (which has to be part of @var{filename}'s backing
> +chain). If @var{base} is not specified, the immediate backing file of the top
> +image (which is @var{filename}) will be used. For reasons of consistency,
> +explicitly specifying @var{base} will always imply @code{-d}.
Wouldn't hurt, though, to be more explicit about the "reasons of
consistency". Took me a few moments to understand.
Kevin
next prev parent reply other threads:[~2014-10-23 13:05 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-22 12:51 [Qemu-devel] [PATCH v13 00/14] qemu-img: Implement commit like QMP Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 01/14] qcow2: Allow "full" discard Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 02/14] qcow2: Implement bdrv_make_empty() Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 03/14] qcow2: Optimize bdrv_make_empty() Max Reitz
2014-10-22 16:04 ` Eric Blake
2014-10-22 18:35 ` Kevin Wolf
2014-10-23 7:46 ` Max Reitz
2014-10-23 8:29 ` Kevin Wolf
2014-10-23 8:36 ` Max Reitz
2014-10-23 8:41 ` Kevin Wolf
2014-10-23 9:11 ` Max Reitz
2014-10-23 9:42 ` Kevin Wolf
2014-10-23 9:44 ` Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 04/14] blockjob: Introduce block_job_complete_sync() Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 05/14] blockjob: Add "ready" field Max Reitz
2014-10-23 10:01 ` Kevin Wolf
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 06/14] iotests: Omit length/offset test in 040 and 041 Max Reitz
2014-10-23 10:06 ` Kevin Wolf
2014-10-23 10:07 ` Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 07/14] block/mirror: Improve progress report Max Reitz
2014-10-23 10:52 ` Kevin Wolf
2014-10-23 11:09 ` Max Reitz
2014-10-23 12:03 ` Kevin Wolf
2014-10-23 13:10 ` Eric Blake
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 08/14] qemu-img: Implement commit like QMP Max Reitz
2014-10-22 16:22 ` Eric Blake
2014-10-23 11:59 ` Kevin Wolf
2014-10-23 12:35 ` Max Reitz
2014-10-23 12:40 ` Kevin Wolf
2014-10-23 12:44 ` Max Reitz
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 09/14] qemu-img: Empty image after commit Max Reitz
2014-10-23 12:55 ` Kevin Wolf
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 10/14] qemu-img: Enable progress output for commit Max Reitz
2014-10-23 13:00 ` Kevin Wolf
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 11/14] qemu-img: Specify backing file " Max Reitz
2014-10-23 13:05 ` Kevin Wolf [this message]
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 12/14] iotests: Add _filter_qemu_img_map Max Reitz
2014-10-23 13:08 ` Kevin Wolf
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 13/14] iotests: Add test for backing-chain commits Max Reitz
2014-10-23 13:24 ` Kevin Wolf
2014-10-22 12:51 ` [Qemu-devel] [PATCH v13 14/14] iotests: Add test for qcow2's bdrv_make_empty Max Reitz
2014-10-22 17:05 ` Eric Blake
2014-10-23 13:30 ` Kevin Wolf
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