diff options
| author | Manos Pitsidianakis <el13635@mail.ntua.gr> | 2017-07-13 18:30:28 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-09-04 18:31:13 +0200 |
| commit | f7cc69b326850c34db5dca2f9f74898cd181f43a (patch) | |
| tree | ad7fd5018f1a5f3c903ba3ada403fc230dab4a6b /include/block | |
| parent | d8e12cd3227f0cb3b5558563f094088cfefb8f21 (diff) | |
| download | qemu-f7cc69b326850c34db5dca2f9f74898cd181f43a.zip | |
block: add default implementations for bdrv_co_get_block_status()
bdrv_co_get_block_status_from_file() and
bdrv_co_get_block_status_from_backing() set *file to bs->file and
bs->backing respectively, so that bdrv_co_get_block_status() can recurse
to them. Future block drivers won't have to duplicate code to implement
this.
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block_int.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index ca4e7e5629..223801e4fb 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -964,6 +964,24 @@ void bdrv_format_default_perms(BlockDriverState *bs, BdrvChild *c, uint64_t perm, uint64_t shared, uint64_t *nperm, uint64_t *nshared); +/* + * Default implementation for drivers to pass bdrv_co_get_block_status() to + * their file. + */ +int64_t coroutine_fn bdrv_co_get_block_status_from_file(BlockDriverState *bs, + int64_t sector_num, + int nb_sectors, + int *pnum, + BlockDriverState **file); +/* + * Default implementation for drivers to pass bdrv_co_get_block_status() to + * their backing file. + */ +int64_t coroutine_fn bdrv_co_get_block_status_from_backing(BlockDriverState *bs, + int64_t sector_num, + int nb_sectors, + int *pnum, + BlockDriverState **file); const char *bdrv_get_parent_name(const BlockDriverState *bs); void blk_dev_change_media_cb(BlockBackend *blk, bool load, Error **errp); bool blk_dev_has_removable_media(BlockBackend *blk); |