Binary package “cachefilesd” in ubuntu oneiric
support fscache on already mounted filesystem
FSCache is a generic caching manager in the Linux kernel which can be used
by network and other filesystems to cache data locally.
CacheFiles is an FSCache backend that's meant to use as a cache a directory on
an already mounted filesystem of a local type (such as Ext3). This package
installs the userspace support required by the cachefiles backend.