diff options
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index ea34ae2da5..867b43ba84 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1873,8 +1873,10 @@ static int qcow2_create2(const char *filename, int64_t total_size, QemuOpts *opts, int version, int refcount_order, Error **errp) { - /* Calculate cluster_bits */ int cluster_bits; + QDict *options; + + /* Calculate cluster_bits */ cluster_bits = ctz32(cluster_size); if (cluster_bits < MIN_CLUSTER_BITS || cluster_bits > MAX_CLUSTER_BITS || (1 << cluster_bits) != cluster_size) @@ -2032,9 +2034,11 @@ static int qcow2_create2(const char *filename, int64_t total_size, * refcount of the cluster that is occupied by the header and the refcount * table) */ - ret = bdrv_open(&bs, filename, NULL, NULL, + options = qdict_new(); + qdict_put(options, "driver", qstring_from_str("qcow2")); + ret = bdrv_open(&bs, filename, NULL, options, BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH, - &bdrv_qcow2, &local_err); + NULL, &local_err); if (ret < 0) { error_propagate(errp, local_err); goto out; @@ -2084,9 +2088,11 @@ static int qcow2_create2(const char *filename, int64_t total_size, bs = NULL; /* Reopen the image without BDRV_O_NO_FLUSH to flush it before returning */ - ret = bdrv_open(&bs, filename, NULL, NULL, + options = qdict_new(); + qdict_put(options, "driver", qstring_from_str("qcow2")); + ret = bdrv_open(&bs, filename, NULL, options, BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_BACKING, - &bdrv_qcow2, &local_err); + NULL, &local_err); if (local_err) { error_propagate(errp, local_err); goto out; |