ReiserFS - What's the underlying structure?
 

This is just a curiosity question...in my Data Structures and Algorithms course we are learning about linked lists. Our prof explained that the FAT system is a linked list, same with NTFS except NTFS uses clusters. I asked him about Linux filesystems, namely my favorite ReiserFS, and he said it was basically a copy of NTFS for Linux. Is this true?

Hell no. ReiserFS is a tree structure. That link talks about the new system in v4, but it uses the v3 system as a comparison if I am not mistaken.

Anyway, because of the tree structure used ReiserFS is the fastest file system out there when it comes to finding files. It also implements a journaling system that works much better then the NTFS system.

Tell your professor he might want to read up about what he is talking about.