Date: Mon, 26 Nov 2001 16:59:15 +0100 From: Andrea Campi <andrea@webcom.it> To: Robert Watson <rwatson@freebsd.org> Cc: freebsd-arch@freebsd.org Subject: Re: Importing AFS / Arla in kernel Message-ID: <20011126155915.GB3625@webcom.it> In-Reply-To: <Pine.NEB.3.96L.1011124173749.64014B-100000@fledge.watson.org> References: <20011122104225.GC1600@webcom.it> <Pine.NEB.3.96L.1011124173749.64014B-100000@fledge.watson.org>
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[Picking a semi-random message to reply, exp. since you volunteered to commit] OK, so you can find the patch at this URL: http://www.webcom.it/freebsd/arla.diff A few things to note: - first, this patch imports in contrib a selection of the needed files as will be in the arla repo as soon as assar gets to commit them. This means we still need a few days, but also that we will need no patch (don't want to take files off the vendor branch). I will try to ensure things stay this way as much as possible, i.e. commit first to arla and then import over. This also means that something might change a little bit as I get more feedback from Arla people. - I propose to name the module arlaxfs even if the original name is xfs, to avoid possible future conflicts with SGI XFS, should we ever want to have that. However, if you guys feel this is not important, we could call this xfs and stay more compatible with original Arla. - Previously Arla allocated a dynamic syscall number; I want to use 339 as that's been reserved for AFS. I had to do this, don't know if it's correct: Index: sys/kern/syscalls.master =================================================================== RCS file: /u/ncvs/src/sys/kern/syscalls.master,v retrieving revision 1.100 diff -u -r1.100 syscalls.master --- sys/kern/syscalls.master 2 Nov 2001 17:58:26 -0000 1.100 +++ sys/kern/syscalls.master 23 Nov 2001 23:26:24 -0000 @@ -483,7 +483,7 @@ struct sf_hdtr *hdtr, off_t *sbytes, int flags); } 337 STD BSD { int kldsym(int fileid, int cmd, void *data); } 338 MSTD BSD { int jail(struct jail *jail); } -339 UNIMPL BSD pioctl +339 NODEF NOHIDE lkmressys lkmressys nosys_args int 340 MSTD POSIX { int sigprocmask(int how, const sigset_t *set, \ sigset_t *oset); } 341 MSTD POSIX { int sigsuspend(const sigset_t *sigmask); } Please note that I am currently at the point where I am able to compile in the kernel or as module, and load the module with no error. However I am sure actually using this module would give errors, and almost certainly panic your machine (I still need to touch WITNESS code, for starters); but I need to have something committed or I risk losing so much time redoing things when something changes. I am confident that it won't be long until I have it 100% working. One area I need help with is, if I compile arla in the kernel (vs. as a module) it doesn't register. I'm sure I've forgotten something, so I obviously need some tutoring in this. So, if anybody care to review and comment, I'd be grateful. Bye, Andrea > > There's lots of existing precedent for this, including in the form of > Coda, which uses a very similar model. Boasting out-of-the-box support > for AFS also has its advantages :-). I'd be happy to do the commit-work > fo this if Assar is otherwise occupied. > -- It's not a bug, it's tradition! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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