[3986] in arla-drinkers
Re: nnpfs/xfs tutorial
daemon@ATHENA.MIT.EDU (Kristaps Johnson)
Mon Jul 17 18:13:16 2006
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Date: Mon, 17 Jul 2006 18:11:50 -0400 (EDT)
From: Kristaps Johnson <kristaps@gradient-enterprises.com>
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Subject: Re: nnpfs/xfs tutorial
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Hello everybody,
I've added changes mentioned in this thread along with a slew of related
documentation. This project, I think, is somewhat OT to arla-drinkers so
I'll keep any additional releases local to the web site (unless requested
otherwise, of course!).
http://sysjail.bsd.lv/xfsskel/
(notice the trailing slash...)
Errata? Additions? Questions? I don't anticipate adding a great deal
(unless I've missed something blinding). Pending issues are (1) the
pioctl interface and (2) ADVLOCK. Not difficult to figure out. I think
enough data exists to build a rudimentary file-system (less PAG
manipulation via pioctl, etc).
Errors exist. They must be killed.
As per the mission of xfsskel, I think this provides a fairly detailed set
of documents on building one's file-system atop NNPFS.
Some comments:
>> - xfs_message_bulkgetnode?
>>
> Hm. I don't have that. Could be useful for windows readdir where you need
> the statinfo for all the nodes, too. Or color-ls...
>
> Is it an OpenBSD invention, or did it use to be in mainline? I know people
> have talked about it.
This structure doesn't appear anywhere in the OpenBSD 3.9 NNPFS sources
(NNPFS_VERSION 18). I gather that it's unused.
And last but certainly not least:
What does NNPFS mean?
Take care, and thanks again,
Kristaps
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