206         BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_can_snapshot()  local
207         if (fallback_bs) {  in bdrv_can_snapshot()
208             return bdrv_can_snapshot(fallback_bs);  in bdrv_can_snapshot()
220     BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_snapshot_create()  local
230     if (fallback_bs) {  in bdrv_snapshot_create()
231         return bdrv_snapshot_create(fallback_bs, sn_info);  in bdrv_snapshot_create()
272         BlockDriverState *fallback_bs = fallback->bs;  in bdrv_snapshot_goto()  local
278         bdrv_ref(fallback_bs);  in bdrv_snapshot_goto()
286                       bdrv_get_node_name(fallback_bs));  in bdrv_snapshot_goto()
298         ret = bdrv_snapshot_goto(fallback_bs, snapshot_id, errp);  in bdrv_snapshot_goto()
302             bdrv_unref(fallback_bs);  in bdrv_snapshot_goto()
316         assert(bdrv_primary_bs(bs) == fallback_bs);  in bdrv_snapshot_goto()
319         bdrv_unref(fallback_bs);  in bdrv_snapshot_goto()
355     BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_snapshot_delete()  local
375     } else if (fallback_bs) {  in bdrv_snapshot_delete()
376         ret = bdrv_snapshot_delete(fallback_bs, snapshot_id, name, errp);  in bdrv_snapshot_delete()
395     BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_snapshot_list()  local
403     if (fallback_bs) {  in bdrv_snapshot_list()
404         return bdrv_snapshot_list(fallback_bs, psn_info);  in bdrv_snapshot_list()