<btrfs/ioctl.h> and <btrfs/ctree.h> seem to be licensed under GPL2 without any exception note.

Would it be possible to relax the license of these headers so that they can be #include-d from non-GPL applications?

Moby/Docker and containerd (Apache License 2.0) are already importing these headers, and I'm curious there is already a licensing concern 🤔

• https://github.com/moby/moby/blob/v20.10.7/daemon/graphdriver/btrfs/btrfs.go#L8-L9
• https://github.com/containerd/btrfs/blob/v1.0.0/btrfs.c#L19-L20