Date: Tue, 17 Jul 2001 18:01:09 +0930 From: Greg Lehey <grog@FreeBSD.org> To: m p <sumirati@yahoo.de> Cc: jasonf@citynet.net, freebsd-fs@freebsd.org Subject: Re: Porting a new filesystem to FreeBSD Message-ID: <20010717180109.V70499@wantadilla.lemis.com> In-Reply-To: <20010717082210.76404.qmail@web13303.mail.yahoo.com>; from sumirati@yahoo.de on Tue, Jul 17, 2001 at 10:22:10AM %2B0200 References: <20010717082210.76404.qmail@web13303.mail.yahoo.com>
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On Tuesday, 17 July 2001 at 10:22:10 +0200, m p wrote: > Hi, > > let it be technical again. > > I wanted to do a little bit more research before > bringing up the idea of porting the GPLed version of > JFS to *BSD. But now is better than else. > > JFS would be a nice thing for > mail/database/http/file-servers. I can not state "that > filesystem is better than this". But a filesystem > developed by a big company to use it with linux - why > do we not port it? Well, there's a significant amount of effort involved, for one thing. BSD kernel internals are very different from Linux. But if you want to work on it, I can offer official support. > Things i wanted to research before starting it: > 1) Is there anybody doing it and needing help? Not that I know of. > 2) What filesystem/booting-process/lvm-stuff is under > development in -current? Vinum root file systems are just a SMOP away. I had it running over a year ago, but didn't have time to make some minor modifications. > 3) How do i have to modify the kernel to support JFS? > (or modify the linux kernel wrapper) It's certainly more than modifying the Linux kernel wrapper. It's too early to guess exactly how much work it might be. > 4) How do i kernel programming (if needed)? I don't understand this question. > 5) What _exactly_ is a filesystem? Well, I would think you would understand this already. Or maybe I'm misunderstanding your point. > When these points are clear (worst case i have to do a research on > all 5, best case only on point 1) i will start the project. > > Is there any big step i missed during brainstorming? Well, maybe the magnitude of the project. It's not easy, and even the recently released Linux version of the file system has significant "issues". Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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