Linux v5.2-rc1 - efs
tristate "EFS file system support (read only)"
depends on BLOCK
EFS is an older file system used for non-ISO9660 CD-ROMs and hard
disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
uses the XFS file system for hard disk partitions however).
This implementation only offers read-only access. If you don't know
what all this is about, it's safe to say N. For more information
about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
To compile the EFS file system support as a module, choose M here: the
module will be called efs.