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-rw-r--r--block/qcow2-refcount.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 5e3f9153fb..96224d1af2 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -301,7 +301,8 @@ static int alloc_refcount_block(BlockDriverState *bs,
uint64_t last_table_size;
uint64_t blocks_clusters;
do {
- uint64_t table_clusters = size_to_clusters(s, table_size);
+ uint64_t table_clusters =
+ size_to_clusters(s, table_size * sizeof(uint64_t));
blocks_clusters = 1 +
((table_clusters + refcount_block_clusters - 1)
/ refcount_block_clusters);