tree 2ff2be43bce66ac98a692709dab8bfa287823146
parent 77e023ff79222191e8cc3d377504da8f19926837
author Kevin Wolf <kwolf@redhat.com> 1551270176 +0100
committer Kevin Wolf <kwolf@redhat.com> 1552044405 +0100

qcow2: Prepare qcow2_co_block_status() for data file

Offset 0 cannot be assumed to mean an unallocated cluster any more.
Instead, the cluster type needs to be checked.

*file must refer to the data file instead of the image file if a valid
offset is returned from qcow2_co_block_status().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>