Revision 92b30744
| b/block/qcow2.c | ||
|---|---|---|
| 52 | 52 |
#define QCOW_EXT_MAGIC_END 0 |
| 53 | 53 |
#define QCOW_EXT_MAGIC_BACKING_FORMAT 0xE2792ACA |
| 54 | 54 |
|
| 55 |
static BlockDriver bdrv_qcow2; |
|
| 56 |
|
|
| 57 | 55 |
static int qcow_probe(const uint8_t *buf, int buf_size, const char *filename) |
| 58 | 56 |
{
|
| 59 | 57 |
const QCowHeader *cow_header = (const void *)buf; |
| ... | ... | |
| 1018 | 1016 |
/* Preallocate metadata */ |
| 1019 | 1017 |
if (ret == 0 && prealloc) {
|
| 1020 | 1018 |
BlockDriverState *bs; |
| 1019 |
BlockDriver *drv = bdrv_find_format("qcow2");
|
|
| 1021 | 1020 |
bs = bdrv_new("");
|
| 1022 |
bdrv_open(bs, filename, BDRV_O_CACHE_WB | BDRV_O_RDWR, &bdrv_qcow2);
|
|
| 1021 |
bdrv_open(bs, filename, BDRV_O_CACHE_WB | BDRV_O_RDWR, drv);
|
|
| 1023 | 1022 |
preallocate(bs); |
| 1024 | 1023 |
bdrv_close(bs); |
| 1025 | 1024 |
} |
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