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qcow2: Free preallocated zero clusters

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In qcow2_free_any_clusters, preallocated zero clusters should be freed
just as normal clusters are.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-10-09 10:44:28 +02:00 committed by Kevin Wolf
parent 998b959c1e
commit 8f730dd24e
1 changed files with 5 additions and 3 deletions
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8
block/qcow2-refcount.c
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@ -796,11 +796,13 @@ void qcow2_free_any_clusters(BlockDriverState *bs, uint64_t l2_entry,
}
break;
case QCOW2_CLUSTER_NORMAL:
qcow2_free_clusters(bs, l2_entry & L2E_OFFSET_MASK,
nb_clusters << s->cluster_bits, type);
case QCOW2_CLUSTER_ZERO:
if (l2_entry & L2E_OFFSET_MASK) {
qcow2_free_clusters(bs, l2_entry & L2E_OFFSET_MASK,
nb_clusters << s->cluster_bits, type);
}
break;
case QCOW2_CLUSTER_UNALLOCATED:
case QCOW2_CLUSTER_ZERO:
break;
default:
abort();