From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Vladimir Saveliev <vs@namesys.com>
Cc: "Aaron D.Ball" <adb@bdi.com>,
reiserfs-list@namesys.com,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: knfsd and append-only attribute: "operation not permitted"
Date: Fri, 21 Jan 2005 10:53:07 -0500 [thread overview]
Message-ID: <1106322787.30627.5.camel@lade.trondhjem.org> (raw)
In-Reply-To: <1106318654.3200.38.camel@tribesman.namesys.com>
fr den 21.01.2005 Klokka 17:44 (+0300) skreiv Vladimir Saveliev:
> Hello
>
> On Thu, 2005-01-20 at 21:45, Aaron D.Ball wrote:
> > When I use the kernel-based NFS server to export directories on
> > ReiserFS that have the append-only attribute set, I can't access the
> > files from the client machines at all: for example, "ls" returns
> > "operation not permitted". Is this a known bug? Is there a good
> > workaround?
> >
>
> It looks like the problem is not in reiserfs, but in nfsd.
> fs/nfsd/vfs.c:nfsd_open() refuses to open append only files.
Append-only is an unsupported concept in the all existing revisions of
the NFS protocol. In fact, NFS has no support for append writes at all:
they have to be emulated by the clients.
Cheers,
Trond
--
Trond Myklebust <trond.myklebust@fys.uio.no>
next prev parent reply other threads:[~2005-01-21 15:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <8381054C-6B13-11D9-BFA6-000D933B35AA@bdi.com>
2005-01-21 14:44 ` Vladimir Saveliev
2005-01-21 15:53 ` Trond Myklebust [this message]
2005-01-21 16:23 ` Aaron D. Ball
2005-01-21 17:08 ` Trond Myklebust
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