Revision 6377af48 block/qcow2.c
| b/block/qcow2.c | ||
|---|---|---|
| 536 | 536 |
} |
| 537 | 537 |
break; |
| 538 | 538 |
|
| 539 |
case QCOW2_CLUSTER_ZERO: |
|
| 540 |
if (s->qcow_version < 3) {
|
|
| 541 |
ret = -EIO; |
|
| 542 |
goto fail; |
|
| 543 |
} |
|
| 544 |
qemu_iovec_memset(&hd_qiov, 0, 512 * cur_nr_sectors); |
|
| 545 |
break; |
|
| 546 |
|
|
| 539 | 547 |
case QCOW2_CLUSTER_COMPRESSED: |
| 540 | 548 |
/* add AIO support for compressed blocks ? */ |
| 541 | 549 |
ret = qcow2_decompress_cluster(bs, cluster_offset); |
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