quota housekeeping unit (was: blocksizes)

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

> As an extreme example [on ISO 9660], you could have a file with 3 bytes,
> where every byte is in a separate block.
Raising the question of which kind of resource limitation exactly you want to 
impose on the user. Wouldn't it make sense to count that kind of usage as three 
blocks? After all, it's disc blocks you run out of, not bytes of user data.