347     BlockDriverState* qcow;  member
1024     s->qcow = s->write_target = NULL;  in vvfat_open()
1292 	if (s->qcow) {  in vvfat_read()
1294 	    if (s->qcow->drv->bdrv_is_allocated(s->qcow,  in vvfat_read()
1297 		if (s->qcow->drv->bdrv_read(s->qcow, sector_num, buf+i*0x200, n))  in vvfat_read()
1541     if (s->qcow == NULL)  in cluster_was_modified()
1545 	was_modified = s->qcow->drv->bdrv_is_allocated(s->qcow,  in cluster_was_modified()
1618     if (s->qcow) {  in get_cluster_count_for_direntry()
1646 	if (s->qcow) {  in get_cluster_count_for_direntry()
1695 		    if (!s->qcow->drv->bdrv_is_allocated(s->qcow,  in get_cluster_count_for_direntry()
1700 			if (s->qcow->drv->bdrv_write(s->qcow,  in get_cluster_count_for_direntry()
1890     if (s->qcow)  in is_consistent()
2631     s->qcow->drv->bdrv_make_empty(s->qcow);  in do_commit()
2721     ret = s->qcow->drv->bdrv_write(s->qcow, sector_num, buf, nb_sectors);  in vvfat_write()
2760     bdrv_delete(s->qcow);  in write_target_close()
2789     s->qcow = bdrv_new("");  in enable_write_target()
2790     if (s->qcow == NULL || bdrv_open(s->qcow, s->qcow_filename, 0) < 0)  in enable_write_target()