(fwd) umount-root-3

[Erik Andersen <andersen@xmission.com>]

Yet another release of the chroot kernel patch...

 -Erik

--
Erik B. Andersen   Web:    http://www.xmission.com/~andersen/ 
                   email:  andersee@debian.org
--This message was written using 73% post-consumer electrons--

--- Begin Message ---

• To: linux-kernel@vger.rutgers.edu
• Subject: umount-root-3
• From: almesber@lrc.di.epfl.ch
• Date: Thu, 20 Jan 2000 14:04:17 +0100
• Message-id: <20000120140417.C20077@lrc.di.epfl.ch>
• In-reply-to: <20000117093316.A16406@lrc.di.epfl.ch>; from almesber@lrc.di.epfl.ch on Mon, Jan 17, 2000 at 09:33:16AM +0100
• References: <20000116032425.E12138@lrc.di.epfl.ch> <20000116161705.H12138@lrc.di.epfl.ch> <20000117093316.A16406@lrc.di.epfl.ch>

Yet another version of my patch for root-hopping, for pre-2.3.40-6:

ftp://lrcftp.epfl.ch/pub/people/almesber/misc/umount-root-3.tar.gz

This one I've tested with a real NFS root. There was one problem:
rpciod is created as a child of mount, so it doesn't share current->fs
with init, and therefore doesn't leave the original / on chroot. I've
fixed it by adding a call to exit_fs to linux/net/sunrpc/sched.c:rpciod
(rpciod doesn't use files anyway).

The NFS root example is described in the README.

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, ICA, EPFL, CH       werner.almesberger@ica.epfl.ch /
/_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/

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