From: Eric Blake <eblake@redhat.com>
To: Max Reitz <mreitz@redhat.com>, qemu-devel@nongnu.org
Cc: "Kevin Wolf" <kwolf@redhat.com>,
"Benoît Canet" <benoit@irqsave.net>,
"Stefan Hajnoczi" <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2 6/7] block/qcow2: Simplify shared L2 handling in amend
Date: Tue, 05 Aug 2014 07:27:22 -0600 [thread overview]
Message-ID: <53E0DBBA.6060403@redhat.com> (raw)
In-Reply-To: <1406936961-20356-7-git-send-email-mreitz@redhat.com>
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On 08/01/2014 05:49 PM, Max Reitz wrote:
> Currently, we have a bitmap for keeping track of which clusters have
> been created during the zero cluster expansion process. This was
> necessary because we need to properly increase the refcount for shared
> L2 tables.
>
> However, now we can simply take the L2 refcount and use it for the
> cluster allocated for expansion. This will be the correct refcount and
> therefore we don't have to remember that cluster having been allocated
> any more.
>
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
> block/qcow2-cluster.c | 90 ++++++++++++++++-----------------------------------
> 1 file changed, 28 insertions(+), 62 deletions(-)
>
Reviewed-by: Eric Blake <eblake@redhat.com>
--
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:[~2014-08-05 13:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-01 23:49 [Qemu-devel] [PATCH v2 0/7] block/qcow2: Improve zero cluster expansion Max Reitz
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 1/7] block: Add status callback to bdrv_amend_options() Max Reitz
2014-08-04 9:19 ` Benoît Canet
2014-08-05 13:03 ` Eric Blake
2014-08-15 11:10 ` Benoît Canet
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 2/7] qemu-img: Add progress output for amend Max Reitz
2014-08-04 9:21 ` Benoît Canet
2014-08-05 13:04 ` Eric Blake
2014-08-15 11:18 ` Benoît Canet
2014-08-15 13:06 ` Max Reitz
2014-08-15 13:30 ` Benoît Canet
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 3/7] qemu-img: Fix insignificant memleak Max Reitz
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 4/7] block/qcow2: Implement status CB for amend Max Reitz
2014-08-04 9:29 ` Benoît Canet
2014-08-05 13:11 ` Eric Blake
2014-08-15 11:26 ` Benoît Canet
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 5/7] block/qcow2: Make get_refcount() global Max Reitz
2014-08-04 9:31 ` Benoît Canet
2014-08-05 13:18 ` Eric Blake
2014-08-15 11:27 ` Benoît Canet
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 6/7] block/qcow2: Simplify shared L2 handling in amend Max Reitz
2014-08-04 9:32 ` Benoît Canet
2014-08-05 13:27 ` Eric Blake [this message]
2014-08-15 11:50 ` Benoît Canet
2014-08-01 23:49 ` [Qemu-devel] [PATCH v2 7/7] iotests: Expand test 061 Max Reitz
2014-08-05 13:28 ` Eric Blake
2014-08-15 11:52 ` Benoît Canet
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