Btrfs wiki has the latest information and such the descriptions will be removed from the kernel source. FYI, please take a look at the following, recent patch.

Btrfs wiki has the latest information and such the descriptions will be removed from the kernel source. FYI, please take a look at the following, recent patch. https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg51362.html https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg...