Revision d55dee20
| b/block/quorum.c | ||
|---|---|---|
| 595 | 595 |
return &acb->common; |
| 596 | 596 |
} |
| 597 | 597 |
|
| 598 |
static int64_t quorum_getlength(BlockDriverState *bs) |
|
| 599 |
{
|
|
| 600 |
BDRVQuorumState *s = bs->opaque; |
|
| 601 |
int64_t result; |
|
| 602 |
int i; |
|
| 603 |
|
|
| 604 |
/* check that all file have the same length */ |
|
| 605 |
result = bdrv_getlength(s->bs[0]); |
|
| 606 |
if (result < 0) {
|
|
| 607 |
return result; |
|
| 608 |
} |
|
| 609 |
for (i = 1; i < s->num_children; i++) {
|
|
| 610 |
int64_t value = bdrv_getlength(s->bs[i]); |
|
| 611 |
if (value < 0) {
|
|
| 612 |
return value; |
|
| 613 |
} |
|
| 614 |
if (value != result) {
|
|
| 615 |
return -EIO; |
|
| 616 |
} |
|
| 617 |
} |
|
| 618 |
|
|
| 619 |
return result; |
|
| 620 |
} |
|
| 621 |
|
|
| 598 | 622 |
static BlockDriver bdrv_quorum = {
|
| 599 | 623 |
.format_name = "quorum", |
| 600 | 624 |
.protocol_name = "quorum", |
| 601 | 625 |
|
| 602 | 626 |
.instance_size = sizeof(BDRVQuorumState), |
| 603 | 627 |
|
| 628 |
.bdrv_getlength = quorum_getlength, |
|
| 629 |
|
|
| 604 | 630 |
.bdrv_aio_readv = quorum_aio_readv, |
| 605 | 631 |
.bdrv_aio_writev = quorum_aio_writev, |
| 606 | 632 |
}; |
Also available in: Unified diff