From owner-freebsd-hackers  Mon Dec 17 18:29:53 2001
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Date: Mon, 17 Dec 2001 18:29:46 -0800
From: Terry Lambert <tlambert2@mindspring.com>
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To: Dave Reyenga <dreyenga@telus.net>
Cc: freebsd-fs@freebsd.org, freebsd-hackers@freebsd.org,
	hiten@uk.FreeBSD.org
Subject: Re: Instead of JFS, why not a whole new FS?
References: <001301c1874d$50ae0d20$02000003@tornado>
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Dave Reyenga wrote:
> 
> How about writing a new filesystem based on UFS? This would save all of the
> hassle that JFS would bring: licensing, porting time, etc. Of course, it
> would likely bust any compatibility desired.
> 
> What I'm thinking is a filesystem that takes the current UFS and improves
> upon it. It could support larger partitions, more partitions in a slice, and
> perhaps a "Journal" partition (like the current "swap" partition) among
> other new features.
> 
> What do others have to say about this? Are there any major flaws in my idea?
> It just seems to me that this would cut a lot of hassle.

Any FS that shares code with an existing FS will not flush out
the full list of problems associated with writing a new FS in
the context of a FreeBSD system.

For that reason, any UFS based system, including but not limited
to FFS, LFS, EXT2FS, etc., is probably not a good example to use
for an educational project.

-- Terry

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