diff options
Diffstat (limited to 'block/cow.c')
| -rw-r--r-- | block/cow.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/block/cow.c b/block/cow.c index d4b8c6bdd5..764b93fae0 100644 --- a/block/cow.c +++ b/block/cow.c @@ -191,7 +191,13 @@ static int coroutine_fn cow_co_is_allocated(BlockDriverState *bs, static int64_t coroutine_fn cow_co_get_block_status(BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *num_same) { - return cow_co_is_allocated(bs, sector_num, nb_sectors, num_same); + BDRVCowState *s = bs->opaque; + int ret = cow_co_is_allocated(bs, sector_num, nb_sectors, num_same); + int64_t offset = s->cow_sectors_offset + (sector_num << BDRV_SECTOR_BITS); + if (ret < 0) { + return ret; + } + return (ret ? BDRV_BLOCK_DATA : 0) | offset | BDRV_BLOCK_OFFSET_VALID; } static int cow_update_bitmap(BlockDriverState *bs, int64_t sector_num, |