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From: hamilton@uxc.cso.uiuc.edu
Newsgroups: comp.sys.amiga
Subject: Re: Making a custom Filing System
Message-ID: <172200060@uxc.cso.uiuc.edu>
Date: Sun, 24-May-87 17:01:00 EDT
Article-I.D.: uxc.172200060
Posted: Sun May 24 17:01:00 1987
Date-Received: Tue, 26-May-87 01:40:28 EDT
References: <139@l5comp.UUCP>
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Nf-From: uxc.cso.uiuc.edu!hamilton    May 24 16:01:00 1987


scotty@l5comp says:
> >I suspect it is to make rebuilding the file system easier. It certainly
> >helps in that respect.
> So do the NEXT pointers Chuck. The NEXT pointers give the sequence information
> for rebuilding as well. BUT NOT for a "sparse" system since there's no way for
> these NEXT pointers to encode a block that isn't there... :)

    sure there is.  since block 0 can never appear in a file, zero
be used as a magic cookie, just like i-numbers on a Unix filesystem.

	wayne hamilton
	U of Il and US Army Corps of Engineers CERL
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