diff options
Diffstat (limited to 'include/block/block.h')
| -rw-r--r-- | include/block/block.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h index 0d4d5c3..3560deb 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -248,6 +248,20 @@ int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix); int bdrv_amend_options(BlockDriverState *bs_new, QEMUOptionParameter *options); +/* external snapshots */ + +typedef enum { + EXT_SNAPSHOT_ALLOWED, + EXT_SNAPSHOT_FORBIDDEN, +} ExtSnapshotPerm; + +/* return EXT_SNAPSHOT_ALLOWED if external snapshot is allowed + * return EXT_SNAPSHOT_FORBIDDEN if external snapshot is forbidden + */ +ExtSnapshotPerm bdrv_check_ext_snapshot(BlockDriverState *bs); +/* helper used to forbid external snapshots like in blkverify */ +ExtSnapshotPerm bdrv_check_ext_snapshot_forbidden(BlockDriverState *bs); + /* async block I/O */ typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector, int sector_num); |
