Re: kern/40375: netbsd-5: Process locks in vnode wchan when writing to LFS

[matthew sporleder <msporleder%gmail.com@localhost>]

On Fri, Jan 16, 2009 at 4:23 AM, Andrew Doran <ad%netbsd.org@localhost> wrote:
> On Mon, Jan 12, 2009 at 04:40:07PM +0000, David Holland wrote:
>
>>  For now, try 4.0_STABLE; there's also some talk of making an
>>  lfs-renovation branch so it'll be usable again in 6.0.
>
> I will vehemently oppose any such work if the "resurrection" is to be
> anything like revivesa, where the patient is hooked back up to life support
> and left to remain in a persistent vegetative state.
>
> Our LFS implementation is utterly rotten and it would serve the _project_
> and its _users_ better if we invested time in another solution like ZFS or
> hammer. In fact, we are very close to a working port of ZFS.
>
> I do think that a complete rewrite of LFS would be a very interesting
> project and would support that, but it would be something done out of
> personal interest.


How difficult is it to FUSE-ify an existing filesystem?  I looked at
some FUSE docs for this purpose, but wasn't really sure how to get
started on a filesystem as complicated as LFS or even UFS/FFS.