On Tue, Mar 06, 2018 at 08:12:15PM +0100, Hans van Kranenburg wrote:
> On 05/03/2018 20:47, Marc MERLIN wrote:
> > On Mon, Mar 05, 2018 at 10:38:16PM +0300, Andrei Borzenkov wrote:
> >>> If I absolutely know that the data is the same on both sides, how do I
> >>> either
> >>> 1) force back in a 'Received UUID' value on the destination
> >>
> >> I suppose the most simple is to write small program that does it using
> >> BTRFS_IOC_SET_RECEIVED_SUBVOL.
> >
> > Understdood.
> > Given that I have not worked with the code at all, what is the best
> > tool in btrfs progs, to add this to?
> >
> > btrfstune?
> > btrfs propery set?
> > other?
> >
> > David, is this something you'd be willing to add support for?
> > (to be honest, it'll be quicker for someone who knows the code to add than
> > for me, but if no one has the time, I'l see if I can have a shot at it)
>
> If you want something right now that works, so you can continue doing
> your backups, python-btrfs also has the ioctl, since v9, together with
> an example of using it:
>
> https://github.com/knorrie/python-btrfs/commit/1ace623f95300ecf581b1182780fd6432a46b24d
Well, I had never heard about it until now, thank you.
I'll see if I can make it work when I get a bit of time.
Dear btrfs-progs folks, this would be great to add to the canonical
btrfs-progs too :)
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08
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