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On Sep 30, 2004, at 3:02 PM, Chapman Flack wrote:

> As a matter of mere curiosity (and being too lazy just now to look if 
> it's
> explained in the code), why the choice of signed representation for 
> fragment
> numbers?  To support disks with reversible motors?

Internally, FFS uses negative block numbers to represent the addresses 
of indirect blocks.

         -- Jason R. Thorpe <thorpej@shagadelic.org>


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