36     BlockDriverState *commit_top_bs;  member
53     bdrv_unfreeze_backing_chain(s->commit_top_bs, s->base_bs);  in commit_prepare()
64     return bdrv_drop_intermediate(s->commit_top_bs, s->base_bs,  in commit_prepare()
77         bdrv_unfreeze_backing_chain(s->commit_top_bs, s->base_bs);  in commit_abort()
83     bdrv_ref(s->commit_top_bs);  in commit_abort()
101     commit_top_backing_bs = s->commit_top_bs->backing->bs;  in commit_abort()
106     bdrv_replace_node(s->commit_top_bs, commit_top_backing_bs, &error_abort);  in commit_abort()
110     bdrv_unref(s->commit_top_bs);  in commit_abort()
264     BlockDriverState *commit_top_bs = NULL;  in commit_start()  local
314     commit_top_bs = bdrv_new_open_driver(&bdrv_commit_top, filter_node_name, 0,  in commit_start()
316     if (commit_top_bs == NULL) {  in commit_start()
320         commit_top_bs->implicit = true;  in commit_start()
324     commit_top_bs->never_freeze = true;  in commit_start()
326     commit_top_bs->total_sectors = top->total_sectors;  in commit_start()
328     ret = bdrv_append(commit_top_bs, top, errp);  in commit_start()
329     bdrv_unref(commit_top_bs); /* referenced by new parents or failed */  in commit_start()
331         commit_top_bs = NULL;  in commit_start()
335     s->commit_top_bs = commit_top_bs;  in commit_start()
381     if (bdrv_freeze_backing_chain(commit_top_bs, base, errp) < 0) {  in commit_start()
424         bdrv_unfreeze_backing_chain(commit_top_bs, base);  in commit_start()
439     if (commit_top_bs) {  in commit_start()
442         bdrv_replace_node(commit_top_bs, top, &error_abort);  in commit_start()
456     BlockDriverState *commit_top_bs = NULL;  in bdrv_commit()  local
505     commit_top_bs = bdrv_new_open_driver(&bdrv_commit_top, NULL, BDRV_O_RDWR,  in bdrv_commit()
507     if (commit_top_bs == NULL) {  in bdrv_commit()
512     bdrv_set_backing_hd(commit_top_bs, backing_file_bs, &error_abort);  in bdrv_commit()
513     bdrv_set_backing_hd(bs, commit_top_bs, &error_abort);  in bdrv_commit()
591     bdrv_unref(commit_top_bs);  in bdrv_commit()