Date: Wed, 12 Dec 2001 13:11:25 +1030 From: Greg Lehey <grog@FreeBSD.org> To: Terry Lambert <tlambert2@mindspring.com>, Hiten Pandya <hitmaster2k@yahoo.com> Cc: Alfred Perlstein <bright@mu.org>, hackers@FreeBSD.org, Peter Wemm <peter@wemm.org>, current@FreeBSD.ORG Subject: Re: [SUGGESTION] - JFS for FreeBSD Message-ID: <20011212131125.A82733@monorchid.lemis.com> In-Reply-To: <3C1613AD.53C45B3@mindspring.com> <E16Dkz5-0006Xd-00@tungsten.btinternet.com> <20011211102645.46795.qmail@web21110.mail.yahoo.com> <3C15CD07.6D5FC2E7@mindspring.com> References: <3C1613AD.53C45B3@mindspring.com> <20011211102645.46795.qmail@web21110.mail.yahoo.com> <E16Dkz5-0006Xd-00@tungsten.btinternet.com> <20011211093550.D4BF638CC@overcee.netplex.com.au> <20011211102645.46795.qmail@web21110.mail.yahoo.com> <20011210220153.50612.qmail@web21102.mail.yahoo.com> <20011210161410.L92148@elvis.mu.org> <3C15AC5A.44BFD2BD@mindspring.com> <20011211183001.B67986@monorchid.lemis.com> <3C15CD07.6D5FC2E7@mindspring.com>
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On Tuesday, 11 December 2001 at 1:08:23 -0800, Terry Lambert wrote: > Greg Lehey wrote: >>> FS porting to FreeBSD is actually pretty trivial(*), though some >>> transactioning changes to the FreeBSD VFS layer consumers (the >>> system calls and NFS server code) would be necessary to make >>> the journal roll-back function correctly, following a failure. >>> >>> (*) Trivial: meaning grunt work is required; not necessarily an >>> indicator of the amount of work, only the intellectual effort >>> required for the job >> >> Considering that the current UFS implementation didn't need to be >> ported, and people are still working on the details, I think that this >> is a highly misleading statement. > > The current UFS has a number of issues which make it non-trivial; > it was, in effect, a port; here is the short list: > > <snip> > > Live code always has issues, particularly if you are trying to > pound a round peg into a square hole (hence Kirk taking up the > task of a redesign). Of course. But you're missing the point: ufs is *not* a port, it has been with BSD since the beginning. There is a similar list of items for JFS which would need to be addressed, with the additional issue of the fact that it was not designed for FreeBSD. > I think that everyone saying "Ut oh! SCARY!" gives people the wrong > idea, and scares off potential contributors in these areas. I'm not saying that. I'm saying that it's non-trivial, which I suppose is what you mean when you say "where are the patches?". As I said, I'm quite happy to help people port JFS2 to FreeBSD. On Tuesday, 11 December 2001 at 2:26:45 -0800, Hiten Pandya wrote: >> [... Hiten want's to GPL'ify FreeBSD ...] > > hi, > first of all, i would like to clear of some point which have been > taken wrongly. > > o My Intentions were never to GPL'ify FreeBSD :-) Agreed, I don't think anybody thought that. > o The reason i started this discussion was because > i think JFS/JFS2 would be a nice addition to > FreeBSD like the rest of the other filesystems. > > o The JFS does _not_ have to be root, and even if > people were to download it because it is GPL'ed, > the size of the filesystem is only around 1.0MB If we port JFS2, it will be relatively trivial to have it as the root file system too. > o It is hard to Port AIX or OS/2 based code, but we > have to agree that, BSD Users were meant to take > that kind of challenges, have taken before It's probably easier to port AIX based code than OS/2 or Linux based code. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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