diff options
Diffstat (limited to 'block/io.c')
| -rw-r--r-- | block/io.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/block/io.c b/block/io.c index 26003814eb..4378ae4c7d 100644 --- a/block/io.c +++ b/block/io.c @@ -1714,6 +1714,32 @@ typedef struct BdrvCoGetBlockStatusData { bool done; } BdrvCoGetBlockStatusData; +int64_t coroutine_fn bdrv_co_get_block_status_from_file(BlockDriverState *bs, + int64_t sector_num, + int nb_sectors, + int *pnum, + BlockDriverState **file) +{ + assert(bs->file && bs->file->bs); + *pnum = nb_sectors; + *file = bs->file->bs; + return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | + (sector_num << BDRV_SECTOR_BITS); +} + +int64_t coroutine_fn bdrv_co_get_block_status_from_backing(BlockDriverState *bs, + int64_t sector_num, + int nb_sectors, + int *pnum, + BlockDriverState **file) +{ + assert(bs->backing && bs->backing->bs); + *pnum = nb_sectors; + *file = bs->backing->bs; + return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | + (sector_num << BDRV_SECTOR_BITS); +} + /* * Returns the allocation status of the specified sectors. * Drivers not implementing the functionality are assumed to not support |