Final Year Project: Using Linux Filesystems Under Windows   Chris Bryden BEng. Electronics and Software Engineering    School of Computer Science   University of Birmingham 18 blocks  (indirect  blocks).  The  entry  after  points  to  a  block  of  pointers  to blocks  of  pointers  to  data  blocks  (double  indirect  blocks)  and  the  final entry  points  to  a  block  of  pointers  to    blocks  of  pointers  to  blocks  of pointers to data blocks (triple indirect blocks). · =i_version - The version of the file, used by NFS. · =i_file_acl  - The Access control list of the file (not used). · =i_dir_acl -  The Access control list for the directory (not used). · =i_faddr - The block where the fragment of the file resides. · =i_frag - The number of fragments in the block. · =i_size - The size of the fragment. · =i_pad1 - padding · =i_reserved2 - Not used. Fragments  are  allocation  units  smaller  than  blocks  that  can  be  used  to alleviate the problems of wasted, or slack, space at the end of files. They are not fully implemented yet.