void bdrv_invalidate_cache(BlockDriverState *bs, Error **errp) { BdrvChild *child; Error *local_err = NULL; int ret; if (!bs->drv) { return; } if (!(bs->open_flags & BDRV_O_INACTIVE)) { return; } bs->open_flags &= ~BDRV_O_INACTIVE; if (bs->drv->bdrv_invalidate_cache) { bs->drv->bdrv_invalidate_cache(bs, &local_err); if (local_err) { bs->open_flags |= BDRV_O_INACTIVE; error_propagate(errp, local_err); return; } } QLIST_FOREACH(child, &bs->children, next) { bdrv_invalidate_cache(child->bs, &local_err); if (local_err) { bs->open_flags |= BDRV_O_INACTIVE; error_propagate(errp, local_err); return; } } ret = refresh_total_sectors(bs, bs->total_sectors); if (ret < 0) { bs->open_flags |= BDRV_O_INACTIVE; error_setg_errno(errp, -ret, "Could not refresh total sector count"); return; } }