diff options
| -rw-r--r-- | block/qcow2-refcount.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index a49d59e71e..2110839da4 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -949,11 +949,17 @@ int64_t qcow2_alloc_bytes(BlockDriverState *bs, int size) if (!offset || ROUND_UP(offset, s->cluster_size) != new_cluster) { offset = new_cluster; + free_in_cluster = s->cluster_size; + } else { + free_in_cluster += s->cluster_size; } } assert(offset); ret = update_refcount(bs, offset, size, 1, false, QCOW2_DISCARD_NEVER); + if (ret < 0) { + offset = 0; + } } while (ret == -EAGAIN); if (ret < 0) { return ret; |