qcow2-bitmap: add qcow2_reopen_bitmaps_rw_hint()

Add version of qcow2_reopen_bitmaps_rw, which do the same work but
also return a hint about was header updated or not. This will be
used in the following fix for bitmaps reloading after migration.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180320170521.32152-2-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-03-20 20:05:18 +03:00 committed by Max Reitz
parent 7b93d78a04
commit b1336cc2ec
2 changed files with 16 additions and 1 deletions

View file

@ -671,6 +671,8 @@ int qcow2_check_bitmaps_refcounts(BlockDriverState *bs, BdrvCheckResult *res,
void **refcount_table,
int64_t *refcount_table_size);
bool qcow2_load_dirty_bitmaps(BlockDriverState *bs, Error **errp);
int qcow2_reopen_bitmaps_rw_hint(BlockDriverState *bs, bool *header_updated,
Error **errp);
int qcow2_reopen_bitmaps_rw(BlockDriverState *bs, Error **errp);
void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, Error **errp);
int qcow2_reopen_bitmaps_ro(BlockDriverState *bs, Error **errp);