DragonFly users List (threaded) for 2007-06
Re: Apache in pkgsrc has largefile support on?
Granted, I don't think that many people were thinking in gigabytes
"To insure that it is possible to create ﬁles as large as 2^32
bytes with only two levels of indirection, the
minimum size of a ﬁle system block is 4096 bytes. The size of ﬁle system
blocks can be any power of two
greater than or equal to 4096." 
So I don't think Linux *invented* this UNIX(R)-ism, per-se -
although they might have copied it's behavior :)
HPUX11 requires that you specify 'mkfs -o largefiles / mount -o
largefiles' - and that was released in '98 fer some pretty beefy hardware..
Of course, our lab used Berkeley Unix, as do all right-thinking
folks. East Coast people were said to be biased towards AT&T Unix, but
then, they hadn't discovered hot tubs either.
"We're watching someone who's never used Berkeley Unix." He sucked
in his breath and whispered, "A heathen." 
As true as ever, 20 years on, imho :)
 Marshall Kirk McKusick, William N. Joy, Samuel J. Leffler and Robert
S. Fabry. A Fast File System for UNIX. Technical Report Computer Systems
Research Group, Computer Science Division, Department of Electrical
Engineering and Computer Science, University of California, Berkeley,
Berkeley, CA 94720.
 The Cuckoo's Egg: Tracking a Spy Through the Maze of Computer
Espionage, Clifford Stoll, 1989, ISBN 0-7434-1146-3