53 int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,  in bdrv_snapshot_find()  argument
62     nb_sns = bdrv_snapshot_list(bs, &sn_tab);  in bdrv_snapshot_find()
98 bool bdrv_snapshot_find_by_id_and_name(BlockDriverState *bs,  in bdrv_snapshot_find_by_id_and_name()  argument
111     nb_sns = bdrv_snapshot_list(bs, &sn_tab);  in bdrv_snapshot_find_by_id_and_name()
158 bdrv_snapshot_fallback_child(BlockDriverState *bs)  in bdrv_snapshot_fallback_child()  argument
160     BdrvChild *fallback = bdrv_primary_child(bs);  in bdrv_snapshot_fallback_child()
176     QLIST_FOREACH(child, &bs->children, next) {  in bdrv_snapshot_fallback_child()
189 bdrv_snapshot_fallback(BlockDriverState *bs)  in bdrv_snapshot_fallback()  argument
192     return child_bs(bdrv_snapshot_fallback_child(bs));  in bdrv_snapshot_fallback()
195 int bdrv_can_snapshot(BlockDriverState *bs)  in bdrv_can_snapshot()  argument
197     BlockDriver *drv = bs->drv;  in bdrv_can_snapshot()
201     if (!drv || !bdrv_is_inserted(bs) || !bdrv_is_writable(bs)) {  in bdrv_can_snapshot()
206         BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_can_snapshot()
216 int bdrv_snapshot_create(BlockDriverState *bs,  in bdrv_snapshot_create()  argument
219     BlockDriver *drv = bs->drv;  in bdrv_snapshot_create()
220     BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_snapshot_create()
228         return drv->bdrv_snapshot_create(bs, sn_info);  in bdrv_snapshot_create()
236 int bdrv_snapshot_goto(BlockDriverState *bs,  in bdrv_snapshot_goto()  argument
240     BlockDriver *drv = bs->drv;  in bdrv_snapshot_goto()
251     if (!QLIST_EMPTY(&bs->dirty_bitmaps)) {  in bdrv_snapshot_goto()
257         ret = drv->bdrv_snapshot_goto(bs, snapshot_id);  in bdrv_snapshot_goto()
265     fallback = bdrv_snapshot_fallback_child(bs);  in bdrv_snapshot_goto()
272         BlockDriverState *fallback_bs = fallback->bs;  in bdrv_snapshot_goto()
275         options = qdict_clone_shallow(bs->options);  in bdrv_snapshot_goto()
290             drv->bdrv_close(bs);  in bdrv_snapshot_goto()
295         bdrv_unref_child(bs, fallback);  in bdrv_snapshot_goto()
299         open_ret = drv->bdrv_open(bs, options, bs->open_flags, &local_err);  in bdrv_snapshot_goto()
303             bs->drv = NULL;  in bdrv_snapshot_goto()
316         assert(bdrv_primary_bs(bs) == fallback_bs);  in bdrv_snapshot_goto()
349 int bdrv_snapshot_delete(BlockDriverState *bs,  in bdrv_snapshot_delete()  argument
354     BlockDriver *drv = bs->drv;  in bdrv_snapshot_delete()
355     BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_snapshot_delete()
362                    bdrv_get_device_name(bs));  in bdrv_snapshot_delete()
371     bdrv_drained_begin(bs);  in bdrv_snapshot_delete()
374         ret = drv->bdrv_snapshot_delete(bs, snapshot_id, name, errp);  in bdrv_snapshot_delete()
380                    drv->format_name, bdrv_get_device_name(bs));  in bdrv_snapshot_delete()
384     bdrv_drained_end(bs);  in bdrv_snapshot_delete()
388 int bdrv_snapshot_list(BlockDriverState *bs,  in bdrv_snapshot_list()  argument
394     BlockDriver *drv = bs->drv;  in bdrv_snapshot_list()
395     BlockDriverState *fallback_bs = bdrv_snapshot_fallback(bs);  in bdrv_snapshot_list()
401         return drv->bdrv_snapshot_list(bs, psn_info);  in bdrv_snapshot_list()
429 int bdrv_snapshot_load_tmp(BlockDriverState *bs,  in bdrv_snapshot_load_tmp()  argument
434     BlockDriver *drv = bs->drv;  in bdrv_snapshot_load_tmp()
441                    bdrv_get_device_name(bs));  in bdrv_snapshot_load_tmp()
448     if (!bdrv_is_read_only(bs)) {  in bdrv_snapshot_load_tmp()
453         return drv->bdrv_snapshot_load_tmp(bs, snapshot_id, name, errp);  in bdrv_snapshot_load_tmp()
457                drv->format_name, bdrv_get_device_name(bs));  in bdrv_snapshot_load_tmp()
461 int bdrv_snapshot_load_tmp_by_id_or_name(BlockDriverState *bs,  in bdrv_snapshot_load_tmp_by_id_or_name()  argument
470     ret = bdrv_snapshot_load_tmp(bs, id_or_name, NULL, &local_err);  in bdrv_snapshot_load_tmp_by_id_or_name()
474         ret = bdrv_snapshot_load_tmp(bs, NULL, id_or_name, &local_err);  in bdrv_snapshot_load_tmp_by_id_or_name()
496             BlockDriverState *bs = bdrv_find_node(devices->value);  in bdrv_all_get_snapshot_devices()  local
497             if (!bs) {  in bdrv_all_get_snapshot_devices()
501             bdrvs = g_list_append(bdrvs, bs);  in bdrv_all_get_snapshot_devices()
505         BlockDriverState *bs;  in bdrv_all_get_snapshot_devices()  local
507         for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {  in bdrv_all_get_snapshot_devices()
508             bdrvs = g_list_append(bdrvs, bs);  in bdrv_all_get_snapshot_devices()
517 static bool GRAPH_RDLOCK bdrv_all_snapshots_includes_bs(BlockDriverState *bs)  in bdrv_all_snapshots_includes_bs()  argument
522     if (!bdrv_is_inserted(bs) || bdrv_is_read_only(bs)) {  in bdrv_all_snapshots_includes_bs()
528     return bdrv_has_blk(bs) || QLIST_EMPTY(&bs->parents);  in bdrv_all_snapshots_includes_bs()
548         BlockDriverState *bs = iterbdrvs->data;  in bdrv_all_can_snapshot()  local
551         if (devices || bdrv_all_snapshots_includes_bs(bs)) {  in bdrv_all_can_snapshot()
552             ok = bdrv_can_snapshot(bs);  in bdrv_all_can_snapshot()
556                        "snapshots", bdrv_get_device_or_node_name(bs));  in bdrv_all_can_snapshot()
583         BlockDriverState *bs = iterbdrvs->data;  in bdrv_all_delete_snapshot()  local
587         if ((devices || bdrv_all_snapshots_includes_bs(bs)) &&  in bdrv_all_delete_snapshot()
588             bdrv_snapshot_find(bs, snapshot, name) >= 0)  in bdrv_all_delete_snapshot()
590             ret = bdrv_snapshot_delete(bs, snapshot->id_str,  in bdrv_all_delete_snapshot()
595                           name, bdrv_get_device_or_node_name(bs));  in bdrv_all_delete_snapshot()
627         BlockDriverState *bs = iterbdrvs->data;  in bdrv_all_goto_snapshot()  local
631         all_snapshots_includes_bs = bdrv_all_snapshots_includes_bs(bs);  in bdrv_all_goto_snapshot()
635               bdrv_snapshot_goto(bs, name, errp) : 0;  in bdrv_all_goto_snapshot()
639                           name, bdrv_get_device_or_node_name(bs));  in bdrv_all_goto_snapshot()
666         BlockDriverState *bs = iterbdrvs->data;  in bdrv_all_has_snapshot()  local
670         if (devices || bdrv_all_snapshots_includes_bs(bs)) {  in bdrv_all_has_snapshot()
671             ret = bdrv_snapshot_find(bs, &sn, name);  in bdrv_all_has_snapshot()
679                                  name, bdrv_get_device_or_node_name(bs));  in bdrv_all_has_snapshot()
708         BlockDriverState *bs = iterbdrvs->data;  in bdrv_all_create_snapshot()  local
711         if (bs == vm_state_bs) {  in bdrv_all_create_snapshot()
713             ret = bdrv_snapshot_create(bs, sn);  in bdrv_all_create_snapshot()
714         } else if (devices || bdrv_all_snapshots_includes_bs(bs)) {  in bdrv_all_create_snapshot()
716             ret = bdrv_snapshot_create(bs, sn);  in bdrv_all_create_snapshot()
720                        sn->name, bdrv_get_device_or_node_name(bs));  in bdrv_all_create_snapshot()
747         BlockDriverState *bs = iterbdrvs->data;  in bdrv_all_find_vmstate_bs()  local
750         found = (devices || bdrv_all_snapshots_includes_bs(bs)) &&  in bdrv_all_find_vmstate_bs()
751             bdrv_can_snapshot(bs);  in bdrv_all_find_vmstate_bs()
755                             bdrv_get_node_name(bs))) {  in bdrv_all_find_vmstate_bs()
757                     return bs;  in bdrv_all_find_vmstate_bs()
766             return bs;  in bdrv_all_find_vmstate_bs()