Path: utzoo!attcan!uunet!ginosko!aplcen!haven!adm!xadmx!chris@mimsy.umd.edu
From: chris@mimsy.umd.edu (Chris Torek)
Newsgroups: comp.unix.wizards
Subject: Re:  BSD filesystem defragmentation question
Message-ID: <20645@adm.BRL.MIL>
Date: 17 Aug 89 21:38:48 GMT
Sender: news@adm.BRL.MIL
Lines: 17

In article <8908162031.AA09888@dsys.ncsl.nist.gov> (probably changed
IDs at brl, though; alas)  writes:
>OK, trick question for wizards! How many fragments does a file of
>size ((1 << 20) + 1) have? Answer: zero! Only direct blocks are
>fragmented! Top of page 208 in the 4.3 book.

Right.

>Chris, was this true in 4.2 as well?

Unless it was a bug fix or performance hack---and there were only a few
of those---most anything in the file system code itself that is in 4.3BSD
is also in 4.2BSD.  Kirk did a good job on that code.  (Some of the
other sections of the 4.2BSD were a bit skunky :-) [but maybe they were
not Kirk's code...])

Chris