btrfs-modules-3.16.0-4-loongso software package provides BTRFS filesystem support, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install btrfs-modules-3.16.0-4-loongso
btrfs-modules-3.16.0-4-loongso is installed in your system.
Make ensure the btrfs-modules-3.16.0-4-loongso package were installed using the commands given below,
$ sudo dpkg-query -l | grep btrfs-modules-3.16.0-4-loongso*
You will get with btrfs-modules-3.16.0-4-loongso package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | debian-installer udeb packages |
| Package | btrfs-modules-3.16.0-4-loongso |
| Version | 3.16.36-1+deb8u1 |
| Description | BTRFS filesystem support |
| Sub Section | Debian-installer |