From: Eric Blake <eblake@redhat.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: qemu-devel@nongnu.org, anthony@codemonkey.ws
Subject: Re: [Qemu-devel] [PATCH 07/13] qcow2: Allow lazy refcounts to be enabled on the command line
Date: Thu, 14 Mar 2013 08:45:37 -0600 [thread overview]
Message-ID: <5141E291.6050302@redhat.com> (raw)
In-Reply-To: <1363099279-403-8-git-send-email-kwolf@redhat.com>
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On 03/12/2013 08:41 AM, Kevin Wolf wrote:
> qcow2 images now accept a boolean lazy_refcounts options. Use it like
> this:
>
> -drive file=test.qcow2,lazy_refcounts=on
>
> If the option is specified on the command line, it overrides the default
> specified by the qcow2 header flags that were set when creating the
> image.
Question - how would I get at the lazy_refcounts option when hotplugging
a drive after the fact? In other words, we need to wire up access to
per-format options into QMP, to match what we have done on the command line.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2013-03-14 14:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-12 14:41 [Qemu-devel] [PULL 00/13] Block patches Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 01/13] block: Add options QDict to .bdrv_open() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 02/13] block: Add options QDict to bdrv_open() prototype Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 03/13] Add qdict_clone_shallow() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 04/13] block: Add options QDict to bdrv_open_common() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 05/13] qemu-option: Add qemu_opts_absorb_qdict() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 06/13] block: Support driver specific options in drive_init() Kevin Wolf
2013-03-14 21:11 ` Anthony Liguori
2013-03-12 14:41 ` [Qemu-devel] [PATCH 07/13] qcow2: Allow lazy refcounts to be enabled on the command line Kevin Wolf
2013-03-14 14:45 ` Eric Blake [this message]
2013-03-14 15:00 ` Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 08/13] qcow2: flush refcount cache correctly in alloc_refcount_block() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 09/13] qcow2: flush refcount cache correctly in qcow2_write_snapshots() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 10/13] qcow2: set L2 cache dependency in qcow2_alloc_bytes() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 11/13] qcow2: flush in qcow2_update_snapshot_refcount() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 12/13] qcow2: drop flush in update_cluster_refcount() Kevin Wolf
2013-03-12 14:41 ` [Qemu-devel] [PATCH 13/13] qcow2: drop unnecessary flush in qcow2_update_snapshot_refcount() Kevin Wolf
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