Why, pray tell, are we bothering with signed off_t?  I mean, okay, 8192
exabytes is quite a bit and doubling it is probably pretty niggly once
you deal with data on that scale, but the only negative off_t that
gets returned by anything is -1 (or 2^64 - 1, if unsigned), unless I've
missed something.  Why not make off_t valid up to 2^64 - 2?

...or did I miss something  here?



				--*greywolf;
--
Greywolf's postulate #1:
	If your OS and/or machine absolutely cannot autoboot without manual
	intervention, it isn't worth jack.
		-- from the notebooks of another heretic.