From: "Ronald G. Minnich" <rminnich@lanl.gov>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] alright, this should be interesting
Date: Thu, 21 Oct 2004 10:19:57 -0600 [thread overview]
Message-ID: <Pine.LNX.4.58.0410211017070.13025@linux.site> (raw)
In-Reply-To: <Pine.BSI.4.58.0410201530270.24294@malasada.lava.net>
On Wed, 20 Oct 2004, Tim Newsham wrote:
> The one used by the kernel's stat syscall is. But you're
> not obligated to use it (or the kernel's filesystems, for that
> matter).
then you're into emulating the kernel VFS layer outside the kernel, which
is ok, sort of like trying to the candy bar without removing the wrapper.
Seriously, that approach has been done to death for almost 30 years now,
it works ok, but the limitations at this point are pretty well known. Not
saying you can't do it, I did v9fs on freebsd and linux in user-mode
libraries; at the same time, with the advent of versioned symbols in gcc
libraries, it's kind of a pain in the a@@. Versioned symbols is when I
stopped supporting it.
Plus, you get the wonderful situation that all your file systems start to
act a little different, depending on where you type 'ls'.
I'm assuming you've done this a few times?
ron
next prev parent reply other threads:[~2004-10-21 16:19 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-05 17:36 andrey mirtchovski
2004-10-06 1:07 ` Kenji Okamoto
2004-10-06 1:25 ` andrey mirtchovski
2004-10-06 5:25 ` geoff
2004-10-06 7:52 ` C H Forsyth
2004-10-18 16:05 ` Leo Caves
2004-10-19 2:50 ` Kenji Okamoto
2004-10-19 15:44 ` Ronald G. Minnich
2004-10-19 15:57 ` Dave Lukes
2004-10-19 19:45 ` Tim Newsham
2004-10-19 21:22 ` Ronald G. Minnich
2004-10-19 22:47 ` Charles Forsyth
2004-10-19 23:39 ` Dave Lukes
2004-10-20 3:25 ` Tim Newsham
2004-10-20 9:46 ` Steve Simon
2004-10-20 14:20 ` Russ Cox
2004-10-20 19:47 ` Ronald G. Minnich
2004-10-20 20:29 ` Ronald G. Minnich
2004-10-20 20:41 ` boyd, rounin
2004-10-21 1:31 ` Tim Newsham
2004-10-21 16:19 ` Ronald G. Minnich [this message]
2004-10-19 23:17 ` Dave Lukes
2004-10-20 4:01 ` Tim Newsham
2004-10-20 4:19 ` Russ Cox
2004-10-20 4:27 ` Kenji Okamoto
2004-10-20 6:23 ` Skip Tavakkolian
2004-10-20 7:36 ` Nigel Roles
2004-10-20 11:20 ` Dave Lukes
2004-10-20 12:36 ` Nigel Roles
2004-10-20 13:45 ` Brantley Coile
2004-10-24 5:33 ` Dan Cross
2004-10-24 11:53 ` Tiit Lankots
2004-10-24 13:44 ` Brantley Coile
2004-10-25 11:23 ` Dave Lukes
2004-10-20 17:06 ` Skip Tavakkolian
2004-10-22 7:12 ` Dave Lukes
2004-10-22 19:02 ` Jason Gurtz
2004-10-23 1:27 ` Dave Lukes
2004-10-20 18:40 ` boyd, rounin
2004-10-20 20:16 ` Nigel Roles
2004-10-20 20:46 ` boyd, rounin
2004-10-20 19:59 ` Ronald G. Minnich
2004-10-20 20:02 ` Russ Cox
2004-10-20 20:05 ` Eric Van Hensbergen
2004-10-20 20:25 ` Charles Forsyth
2004-10-20 20:48 ` boyd, rounin
2004-10-21 18:36 ` Dave Lukes
2004-10-21 4:47 ` William Josephson
2004-10-20 20:44 ` boyd, rounin
2004-10-23 18:54 ` Dan Cross
2004-10-20 11:13 ` Dave Lukes
2004-10-20 11:09 ` Dave Lukes
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