Date: Mon, 22 Jun 1998 17:15:53 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: michaelh@cet.co.jp (Michael Hancock) Cc: Matthew.Alton@anheuser-busch.com, tlambert@primenet.com, johnh@isi.edu, FreeBSD-fs@FreeBSD.ORG, Hackers@FreeBSD.ORG, Scott.Smallie@anheuser-busch.com Subject: Re: Stackable filesystems and SunOS 4.1.1 Message-ID: <199806221715.KAA11088@usr06.primenet.com> In-Reply-To: <Pine.SV4.3.95.980621091622.5386B-100000@parkplace.cet.co.jp> from "Michael Hancock" at Jun 21, 98 09:24:10 am
next in thread | previous in thread | raw e-mail | index | archive | help
> I think it is definitely worthwhile to review John's work. The approach > you suggested earlier can easily be made portable, but it is a very very > large project. It reminds me of how Oracle or Sybase are implemented as > large systems with OS-like features. Just implementing the name space > subsystem is not a trivial undertaking. Have a look at namei() and you'll > understand what I'm talking about. Actually, this is false. Three of us implemented full source level FS module portability between FreeBSD and Windows 95 for my previous employer; it wasn't that much work. We also implemented soft updates in FFS before Kirk did (though only in the Windows 95 environment). I personally did the code to support multiple name spaces and Unicode simultaneously through namei. FS work is like any other kernel work; it's not a realm of dark magic... if it's a realm of dark anything, it's a realm of dark politics. The real issue is that there are a lot of people who feel the need for perfect understanding before allowing a change in. Thankfully, there has been a significant uptrend in knowledgable FS hackers recently. I truly don't think the project is that large (having argued for it six ways from Sunday since I first contacted John about including his code in 4.3 based FreeBSD in early 1994). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199806221715.KAA11088>