diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block_int-common.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h index 4ba04d0cc6..8947abab76 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -606,6 +606,12 @@ struct BlockDriver { * in generic block-layer: no serializing, no alignment, no tracked * requests. So, block-driver that realizes these APIs is fully responsible * for synchronization between snapshot-access API and normal IO requests. + * + * TODO: To be able to support qcow2's internal snapshots, this API will + * need to be extended to: + * - be able to select a specific snapshot + * - receive the snapshot's actual length (which may differ from bs's + * length) */ int coroutine_fn (*bdrv_co_preadv_snapshot)(BlockDriverState *bs, int64_t offset, int64_t bytes, QEMUIOVector *qiov, size_t qiov_offset); |