Re: [Qemu-devel] [PATCH] qcow2: Free preallocated zero clusters

[Max Reitz]

On 2013-10-09 11:44, Kevin Wolf wrote:
> Am 09.10.2013 um 10:44 hat Max Reitz geschrieben:
> > In qcow2_free_any_clusters, preallocated zero clusters should be freed
> > just as normal clusters are.
> >
> > Signed-off-by: Max Reitz <address@hidden>
> Thanks, applied to the block branch.
>
> Do you have a test case that would cause a leak previously?
>
> Kevin

Oh, right.

qemu-img create -f qcow2 f.qcow2 64M
qemu-io -c 'write 0 64M' -c 'write -z 0 64M' -c 'discard 0 64M' f.qcow2
qemu-img check f.qcow2

seems enough, I'll send that test case as a follow-up.

Max