From: Greg Banks <gnb@sgi.com>
To: Erik Walthinsen <omega@pdxcolo.net>
Cc: nfs@lists.sourceforge.net
Subject: Re: Converting open filehandles to pathnames
Date: Sun, 9 May 2004 17:24:18 +1000 [thread overview]
Message-ID: <20040509072418.GB18762@sgi.com> (raw)
In-Reply-To: <1084059203.714.13.camel@omikron>
On Sat, May 08, 2004 at 04:33:28PM -0700, Erik Walthinsen wrote:
> I've got an NFS server with client machines running User-mode Linux.
>[...]
> My question: is there some means of divining the device/inode of a
> filehandle? I looked around the NFS and VFS code and found nothing that
> looked promising, but I don't really understand the VFS subsystem.
Generally the device and inode of the file are encoded in the
file handle itself rather than mapped in the server; this is
the easiest way of satisfying the requirement that the filehandles
be stable across server reboots.
If your NFS server is a Linux box, see the comments in
include/linux/nfsd/nfsfh.h for a description of the format
of Linux' file handles.
Also, ethereal will pick apart and display Linux file handles
(unless the underlying server fs is XFS).
Greg.
--
Greg Banks, R&D Software Engineer, SGI Australian Software Group.
I don't speak for SGI.
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next prev parent reply other threads:[~2004-05-09 7:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-08 23:33 Converting open filehandles to pathnames Erik Walthinsen
2004-05-09 7:24 ` Greg Banks [this message]
2004-05-09 0:43 ` Erik Walthinsen
2004-05-10 0:26 ` seth vidal
2004-05-10 3:00 ` Garrick Staples
2004-05-09 21:11 ` Erik Walthinsen
2004-05-10 8:02 ` Bogdan Costescu
2004-05-10 14:20 ` Erik Walthinsen
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