From Gentoo Wiki
NILFS is a new implementation of a log structured filesystem for Linux. It supports continuous snapshoting.
File systems ---> <M> NILFS2 file system support Library routines ---> -*- CRC32/CRC32c functions
USE flags for sys-fs/nilfs-utils A New Implementation of a Log-structured File System for Linux
||Build static versions of dynamic libraries as well|
emerge --ask sys-fs/nilfs-utils
emerge --ask --depclean sys-fs/nilfs-utils
- Filesystem — a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve, and update data as well as manage the available space on the device(s) which contain it.