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Re: [Qemu-devel] [PATCH] qcow2: make is_allocated return true for zero c
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH] qcow2: make is_allocated return true for zero clusters |
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Date: |
Mon, 11 Mar 2013 15:10:21 +0100 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Wed, Mar 06, 2013 at 06:02:01PM +0100, Paolo Bonzini wrote:
> Otherwise, live migration of the top layer will miss zero clusters and
> let the backing file show through. This also matches what is done in qed.
>
> QCOW2_CLUSTER_ZERO clusters are invalid in v2 image files. Check this
> directly in qcow2_get_cluster_offset instead of replicating the test
> everywhere.
>
> Cc: address@hidden
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> block/qcow2.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks, applied to my block-next tree:
https://github.com/stefanha/qemu/commits/block-next
Stefan