diff options
| author | Benoît Canet <benoit@irqsave.net> | 2013-10-02 14:33:48 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-10-11 16:49:59 +0200 |
| commit | f6186f49e2c98d91f22027d8c62996df4fcf3f92 (patch) | |
| tree | eb831f18393107e9014f1bbf91931d21427afd84 /include/block/block.h | |
| parent | 92bc50a5ad7fbc9a0bd17240eaea5027a100ca79 (diff) | |
block: Add BlockDriver.bdrv_check_ext_snapshot.
This field is used by blkverify to disable external snapshots creation.
It will also be used by block filters like quorum to disable external
snapshot creation.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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 0d4d5c336c..3560deb883 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); |