diff options
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index cc1bfebf29..d4d991cbb3 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1602,7 +1602,7 @@ static int qcow2_create2(const char *filename, int64_t total_size, */ BlockDriverState* bs; QCowHeader *header; - uint8_t* refcount_table; + uint64_t* refcount_table; Error *local_err = NULL; int ret; @@ -1654,9 +1654,10 @@ static int qcow2_create2(const char *filename, int64_t total_size, goto out; } - /* Write an empty refcount table */ - refcount_table = g_malloc0(cluster_size); - ret = bdrv_pwrite(bs, cluster_size, refcount_table, cluster_size); + /* Write a refcount table with one refcount block */ + refcount_table = g_malloc0(2 * cluster_size); + refcount_table[0] = cpu_to_be64(2 * cluster_size); + ret = bdrv_pwrite(bs, cluster_size, refcount_table, 2 * cluster_size); g_free(refcount_table); if (ret < 0) { @@ -1681,7 +1682,7 @@ static int qcow2_create2(const char *filename, int64_t total_size, goto out; } - ret = qcow2_alloc_clusters(bs, 2 * cluster_size); + ret = qcow2_alloc_clusters(bs, 3 * cluster_size); if (ret < 0) { error_setg_errno(errp, -ret, "Could not allocate clusters for qcow2 " "header and refcount table"); |