bug#29674: Ceph creates Btrfs subvolumes on Btrfs during tests.

[Ludovic Courtès]

Tobias Geerinckx-Rice <address@hidden> skribis:

> Ludovic Courtès wrote on 12/12/17 at 17:03:
>> So does guix-daemon systematically leave /tmp/guix-build-ceph* behind it?
>
> Almost certainly. I can confirm several hundred previously unknown
> subvolumes filling up my btrfs substitute server. Time to clean up.

Ouch.  I find this Btrfs behavior highly questionable.

Let’s make sure our packages don’t leak Btrfs subvolumes then!

Ludo’.