|
| From: | Alberto Garcia |
| Subject: | Re: [Qemu-devel] [PATCH for-3.1 v10 05/31] block: Respect backing bs in bdrv_refresh_filename |
| Date: | Tue, 28 Aug 2018 15:26:56 +0200 |
| User-agent: | Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) |
On Thu 09 Aug 2018 11:35:02 PM CEST, Max Reitz wrote:
> + backing_overridden = bdrv_backing_overridden(bs);
> +
> + if (bs->open_flags & BDRV_O_NO_IO) {
> + /* Without I/O, the backing file does not change anything.
> + * Therefore, in such a case (primarily qemu-img), we can
> + * pretend the backing file has not been overridden even if
> + * it technically has been. */
> + backing_overridden = false;
> + }
What is this for?
Berto
| [Prev in Thread] | Current Thread | [Next in Thread] |