For external data file, cluster allocations return an offset in the data file and are not refcounted. In this case, there is nothing to do for qcow2_alloc_cluster_abort(). Freeing the same offset in the qcow2 file is wrong and causes crashes in the better case or image corruption in the worse case. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200211094900.17315-3-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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