[falcolas]

Is btrfs really the right choice for this? Even their own faq lists it as still being experimental, and if this becomes as ubiquitous as systemd (which is likely if it's bundled with systemd) we'll really want a stable and performant file system.

[audidude]

This would only require read-only support from Btrfs. Which is stable.

[detaro]

Btrfs is by now used as a default file system in some distros. As far as I understand, only some features are still considered experimental.

[mdekkers]

Yeah, CoreOS used to have btrfs as default, and changed away due to many issues: http://www.phoronix.com/scan.php?page=news_item&px=CoreOS-Bt...