I thought it was used by ext2fs for the defragmenting, etc.
Of course, it's possible that I don't know what I'm talking about.
Mike
-- #> Mike Shaver (shaver@ingenia.com) Ingenia Communications Corporation <# #> Resident Linux bigot and kernel hacker. (OOPS!) <# #> `If you get bitten by a bug, tough luck...the one thing I won't do <# #> is feel sorry for you. In fact, I might ask you to do it all over <# #> again, just to get more information. I'm a heartless bastard.' <# #> -- Linus Torvalds (on development kernels) <#