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| author | Kevin Wolf <kwolf@redhat.com> | 2019-01-18 13:44:40 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2019-03-08 12:26:45 +0100 |
| commit | b8c8353a38296fbb92e05a2843e853c1ddfc2674 (patch) | |
| tree | 1ba0ae0d16202623fdb8222964d6873efb95602c /block/qcow2-cluster.c | |
| parent | a4ea184d8af936cdc4bea4afdb5c30ffaed0c4f7 (diff) | |
qcow2: Prepare count_contiguous_clusters() for external data file
Offset 0 can be valid for normal (allocated) clusters now, so use
qcow2_get_cluster_type() instead.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2-cluster.c')
| -rw-r--r-- | block/qcow2-cluster.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 9cc8f0f3e4..660161bf00 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -389,12 +389,12 @@ static int count_contiguous_clusters(BlockDriverState *bs, int nb_clusters, uint64_t first_entry = be64_to_cpu(l2_slice[0]); uint64_t offset = first_entry & mask; - if (!offset) { + first_cluster_type = qcow2_get_cluster_type(bs, first_entry); + if (first_cluster_type == QCOW2_CLUSTER_UNALLOCATED) { return 0; } /* must be allocated */ - first_cluster_type = qcow2_get_cluster_type(bs, first_entry); assert(first_cluster_type == QCOW2_CLUSTER_NORMAL || first_cluster_type == QCOW2_CLUSTER_ZERO_ALLOC); |