ReiserFS

ReiserFS is a general-purpose, journaled computer file system. ReiserFS is currently supported on Linux (without quota support) Introduced in version 2.4.1 of the Linux kernel, it was the first journaling file system to be included in the standard kernel. ReiserFS is the default file system on the Elive, Xandros, Linspire,  GoboLinux, and Yoper Linux distributions.