if (drv->bdrv_make_empty)
return drv->bdrv_make_empty(bs);
+ /*
+ * Make sure all data we wrote to the backing device is actually
+ * stable on disk.
+ */
+ if (bs->backing_hd)
+ bdrv_flush(bs->backing_hd);
return 0;
}
void bdrv_flush(BlockDriverState *bs)
{
- if (!bs->drv)
- return;
- if (bs->drv->bdrv_flush)
+ if (bs->drv && bs->drv->bdrv_flush)
bs->drv->bdrv_flush(bs);
- if (bs->backing_hd)
- bdrv_flush(bs->backing_hd);
}
void bdrv_flush_all(void)
if (!drv)
return NULL;
-
- /*
- * Note that unlike bdrv_flush the driver is reponsible for flushing a
- * backing image if it exists.
- */
return drv->bdrv_aio_flush(bs, cb, opaque);
}