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From: "Daniel P. Berrange" <berrange@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org, mreitz@redhat.com
Subject: Re: [Qemu-devel] [PATCH 06/10] qemu-img: Prepare for locked images
Date: Tue, 22 Dec 2015 16:57:30 +0000	[thread overview]
Message-ID: <20151222165730.GI10082@redhat.com> (raw)
In-Reply-To: <1450802786-20893-7-git-send-email-kwolf@redhat.com>

On Tue, Dec 22, 2015 at 05:46:22PM +0100, Kevin Wolf wrote:
> This patch extends qemu-img for working with locked images. It prints a
> helpful error message when trying to access a locked image read-write,
> and adds a 'qemu-img force-unlock' command as well as a 'qemu-img check
> -r all --force' option in order to override a lock left behind after a
> qemu crash.
> 
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>


> diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
> index 9567774..dd4aebc 100644
> --- a/qemu-img-cmds.hx
> +++ b/qemu-img-cmds.hx
> @@ -10,9 +10,9 @@ STEXI
>  ETEXI
>  
>  DEF("check", img_check,
> -    "check [-q] [-f fmt] [--output=ofmt] [-r [leaks | all]] [-T src_cache] filename")
> +    "check [-q] [-f fmt] [--force] [--output=ofmt] [-r [leaks | all]] [-T src_cache] filename")
>  STEXI
> -@item check [-q] [-f @var{fmt}] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename}
> +@item check [-q] [-f @var{fmt}] [--force] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename}
>  ETEXI

FWIW, my patch to add a new --source arg to qemu-img commands
means you wouldn't need to keep inventing new command line arguments
for each new block driver option you want to support usage of in
qemu-img - they'll all be accessible:

  https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04021.html

Regards,
Daniel
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  reply	other threads:[~2015-12-22 16:57 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-22 16:46 [Qemu-devel] [PATCH 00/10] qcow2: Implement image locking Kevin Wolf
2015-12-22 16:46 ` [Qemu-devel] [PATCH 01/10] qcow2: Write feature table only for v3 images Kevin Wolf
2015-12-22 20:20   ` Eric Blake
2016-01-11 15:20     ` Kevin Wolf
2015-12-22 16:46 ` [Qemu-devel] [PATCH 02/10] qcow2: Write full header on image creation Kevin Wolf
2015-12-22 20:25   ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 03/10] block: Assert no write requests under BDRV_O_INCOMING Kevin Wolf
2015-12-22 20:27   ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 04/10] block: Fix error path in bdrv_invalidate_cache() Kevin Wolf
2015-12-22 20:31   ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 05/10] block: Inactivate BDS when migration completes Kevin Wolf
2015-12-22 20:43   ` Eric Blake
2016-01-05 20:21     ` [Qemu-devel] [Qemu-block] " John Snow
2016-01-13 14:25       ` Kevin Wolf
2016-01-13 16:35         ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 06/10] qemu-img: Prepare for locked images Kevin Wolf
2015-12-22 16:57   ` Daniel P. Berrange [this message]
2015-12-22 17:00     ` Kevin Wolf
2015-12-22 21:06   ` Eric Blake
2016-01-11 15:49     ` Markus Armbruster
2016-01-11 16:05       ` Kevin Wolf
2016-01-12 15:20         ` Markus Armbruster
2016-01-12 17:36           ` Kevin Wolf
2016-01-13  8:44             ` Markus Armbruster
2016-01-13 14:19               ` Kevin Wolf
2016-01-14 13:07                 ` Markus Armbruster
2016-01-14 14:19                   ` Kevin Wolf
2016-01-11 16:22     ` Kevin Wolf
2015-12-22 21:41   ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 07/10] qcow2: Implement .bdrv_inactivate Kevin Wolf
2015-12-22 21:17   ` Eric Blake
2016-01-11 15:34     ` Kevin Wolf
2015-12-22 16:46 ` [Qemu-devel] [PATCH 08/10] qcow2: Fix BDRV_O_INCOMING handling in qcow2_invalidate_cache() Kevin Wolf
2015-12-22 21:22   ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 09/10] qcow2: Make image inaccessible after failed qcow2_invalidate_cache() Kevin Wolf
2015-12-22 21:24   ` Eric Blake
2015-12-22 16:46 ` [Qemu-devel] [PATCH 10/10] qcow2: Add image locking Kevin Wolf
2015-12-22 22:04   ` Eric Blake
2015-12-23  3:14 ` [Qemu-devel] [PATCH 00/10] qcow2: Implement " Fam Zheng
2015-12-23  7:35   ` [Qemu-devel] [Qemu-block] " Denis V. Lunev
2015-12-23  7:46     ` [Qemu-devel] [PATCH RFC 0/5] generic image locking and crash recovery Denis V. Lunev
2015-12-23  7:46       ` [Qemu-devel] [PATCH 1/5] block: added lock image option and callback Denis V. Lunev
2015-12-23 23:48         ` Eric Blake
2016-01-11 17:31         ` Kevin Wolf
2016-01-11 17:58           ` Daniel P. Berrange
2016-01-11 18:35             ` Kevin Wolf
2016-01-13  8:52               ` Markus Armbruster
2016-01-13  9:12                 ` Denis V. Lunev
2016-01-13  9:50                   ` Daniel P. Berrange
2016-01-13  9:51               ` Daniel P. Berrange
2016-01-12  5:38           ` Denis V. Lunev
2016-01-12 10:10             ` Kevin Wolf
2016-01-12 11:33               ` Fam Zheng
2016-01-12 12:24                 ` Denis V. Lunev
2016-01-12 12:28                 ` Kevin Wolf
2016-01-12 13:17                   ` Fam Zheng
2016-01-12 13:24                     ` Daniel P. Berrange
2016-01-13  0:08                       ` Fam Zheng
2016-01-12 15:59                 ` Denis V. Lunev
2016-01-13  0:10                   ` Fam Zheng
2016-01-13 16:44                     ` Eric Blake
2016-01-14  7:23                       ` Denis V. Lunev
2015-12-23  7:46       ` [Qemu-devel] [PATCH 2/5] block: implemented bdrv_lock_image for raw file Denis V. Lunev
2015-12-23 12:40         ` Daniel P. Berrange
2015-12-23  7:46       ` [Qemu-devel] [PATCH 3/5] block: added check image option and callback bdrv_is_opened_unclean Denis V. Lunev
2015-12-23  9:09         ` Fam Zheng
2015-12-23  9:14           ` Denis V. Lunev
2015-12-23  7:46       ` [Qemu-devel] [PATCH 4/5] qcow2: implemented bdrv_is_opened_unclean Denis V. Lunev
2016-01-11 17:37         ` Kevin Wolf
2015-12-23  7:46       ` [Qemu-devel] [PATCH 5/5] block/paralels: added paralles implementation for bdrv_is_opened_unclean Denis V. Lunev
2015-12-23  8:09       ` [Qemu-devel] [PATCH RFC 0/5] generic image locking and crash recovery Fam Zheng
2015-12-23  8:36         ` Denis V. Lunev
2015-12-23 10:47   ` [Qemu-devel] [PATCH 00/10] qcow2: Implement image locking Daniel P. Berrange
2015-12-23 12:15     ` [Qemu-devel] [Qemu-block] " Roman Kagan
2015-12-23 12:29       ` Daniel P. Berrange
2015-12-23 12:41         ` Denis V. Lunev
2015-12-23 12:46           ` Daniel P. Berrange
2015-12-23 12:34       ` Daniel P. Berrange
2015-12-23 12:47         ` Denis V. Lunev
2015-12-23 12:56           ` Daniel P. Berrange
2016-01-11 17:14     ` [Qemu-devel] " Kevin Wolf
2016-01-11 17:54       ` Daniel P. Berrange
2016-01-13  8:56       ` Markus Armbruster
2016-01-13  9:11         ` [Qemu-devel] [Qemu-block] " Denis V. Lunev
2015-12-23 23:19   ` [Qemu-devel] " Max Reitz
2015-12-24  5:41     ` [Qemu-devel] [Qemu-block] " Denis V. Lunev
2015-12-24  5:42       ` Denis V. Lunev
2016-01-04 17:02       ` Max Reitz
2016-01-11 16:47       ` Kevin Wolf
2016-01-11 17:56         ` Daniel P. Berrange
2015-12-23 14:57 ` [Qemu-devel] " Vasiliy Tolstov
2015-12-23 15:08   ` [Qemu-devel] [Qemu-block] " Denis V. Lunev
2015-12-23 15:11     ` Vasiliy Tolstov
2016-01-11 16:25       ` Kevin Wolf
2015-12-23 15:09   ` Denis V. Lunev
2015-12-24  5:43 ` Denis V. Lunev
2016-01-11 16:33   ` Kevin Wolf
2016-01-11 16:38     ` Denis V. Lunev
2016-01-14 14:01 ` Max Reitz

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