Revision 8b3b7206 block/qcow2.c
| b/block/qcow2.c | ||
|---|---|---|
| 735 | 735 |
backing_file_offset = sizeof(QCowHeader) + offset; |
| 736 | 736 |
} |
| 737 | 737 |
|
| 738 |
ret = bdrv_pwrite(bs->file, sizeof(QCowHeader), buf, ext_size); |
|
| 738 |
ret = bdrv_pwrite_sync(bs->file, sizeof(QCowHeader), buf, ext_size);
|
|
| 739 | 739 |
if (ret < 0) {
|
| 740 | 740 |
goto fail; |
| 741 | 741 |
} |
| ... | ... | |
| 744 | 744 |
uint64_t be_backing_file_offset = cpu_to_be64(backing_file_offset); |
| 745 | 745 |
uint32_t be_backing_file_size = cpu_to_be32(backing_file_len); |
| 746 | 746 |
|
| 747 |
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, backing_file_offset), |
|
| 747 |
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, backing_file_offset),
|
|
| 748 | 748 |
&be_backing_file_offset, sizeof(uint64_t)); |
| 749 | 749 |
if (ret < 0) {
|
| 750 | 750 |
goto fail; |
| 751 | 751 |
} |
| 752 | 752 |
|
| 753 |
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, backing_file_size), |
|
| 753 |
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, backing_file_size),
|
|
| 754 | 754 |
&be_backing_file_size, sizeof(uint32_t)); |
| 755 | 755 |
if (ret < 0) {
|
| 756 | 756 |
goto fail; |
| ... | ... | |
| 1131 | 1131 |
|
| 1132 | 1132 |
/* write updated header.size */ |
| 1133 | 1133 |
offset = cpu_to_be64(offset); |
| 1134 |
ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, size), |
|
| 1135 |
&offset, sizeof(uint64_t)); |
|
| 1134 |
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
|
|
| 1135 |
&offset, sizeof(uint64_t));
|
|
| 1136 | 1136 |
if (ret < 0) {
|
| 1137 | 1137 |
return ret; |
| 1138 | 1138 |
} |
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