From: Neil Brown <neilb@suse.de>
To: "Jörn Engel" <joern@lazybastard.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
Christoph Hellwig <hch@infradead.org>,
Theodore Tso <tytso@mit.edu>, Ulrich Drepper <drepper@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: If not readdir() then what?
Date: Wed, 11 Apr 2007 07:15:57 +1000 [thread overview]
Message-ID: <17947.65165.569482.976343@notabene.brown> (raw)
In-Reply-To: <20070408184129.GA20871@lazybastard.org>
On Sunday April 8, joern@lazybastard.org wrote:
> On Sun, 8 April 2007 11:11:20 -0700, H. Peter Anvin wrote:
> >
> > Well, the question is if you can keep the seekdir/telldir cookie around
> > as a pointer -- preferrably in userspace, of course. You would
> > presumably garbage-collect them on closedir() -- there is no other point
> > at which you could.
>
> Garbage-collecting them on closedir() does not work. It surprised me as
> well, but there seem to be applications that keep the telldir() cookie
> around after closedir(). Iirc, "rm -r" was one of them.
>
> Neil, is this correct?
It's just NFS. nfsd does open/getdents/close on every readdir
request.
"rm -r" is the application that tends to detect any problems with
cookie handling between the NFS client and server.
(I'm sure there was once an 'rm -r' that used telldir/seekdir, but I
cannot find it. Maybe it was level-7 UNIX :-)
NeilBrown
next prev parent reply other threads:[~2007-04-10 21:47 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-07 16:57 Ulrich Drepper
2007-04-07 20:36 ` Theodore Tso
2007-04-07 23:30 ` Christoph Hellwig
2007-04-08 18:11 ` H. Peter Anvin
2007-04-08 18:41 ` Jörn Engel
2007-04-08 19:19 ` Theodore Tso
2007-04-08 19:26 ` Ulrich Drepper
2007-04-08 19:28 ` H. Peter Anvin
2007-04-08 19:40 ` Ulrich Drepper
2007-04-09 1:44 ` Theodore Tso
2007-04-09 11:09 ` Jörn Engel
2007-04-09 12:29 ` Trond Myklebust
2007-04-09 12:31 ` Trond Myklebust
2007-04-09 13:19 ` Theodore Tso
2007-04-09 14:03 ` Trond Myklebust
2007-04-09 16:34 ` Jan Engelhardt
2007-04-09 17:00 ` Trond Myklebust
2007-04-10 13:56 ` Theodore Tso
2007-04-10 14:10 ` Ulrich Drepper
2007-04-10 15:48 ` H. Peter Anvin
2007-04-10 16:42 ` Ulrich Drepper
2007-04-10 14:37 ` Trond Myklebust
2007-04-10 15:54 ` Jan Engelhardt
2007-04-10 16:18 ` H. Peter Anvin
2007-04-10 16:25 ` Valdis.Kletnieks
2007-04-10 21:12 ` Neil Brown
2007-04-10 21:16 ` H. Peter Anvin
2007-04-10 21:43 ` Neil Brown
2007-04-10 21:18 ` Trond Myklebust
2007-04-10 21:37 ` Neil Brown
2007-04-10 21:57 ` Bob Copeland
2007-04-10 21:59 ` Trond Myklebust
2007-04-10 22:33 ` Neil Brown
2007-04-11 0:22 ` Trond Myklebust
2007-04-11 1:45 ` Bernd Eckenfels
2007-04-10 21:46 ` Alan Cox
2007-04-10 21:26 ` Neil Brown
2007-04-09 12:46 ` Andreas Schwab
2007-04-10 21:15 ` Neil Brown [this message]
2007-04-11 13:57 ` Jan Engelhardt
2007-04-11 14:42 ` Theodore Tso
2007-04-11 22:32 ` Neil Brown
2007-04-11 22:06 ` David Lang
2007-04-11 23:23 ` H. Peter Anvin
2007-04-11 23:33 ` Jörn Engel
2007-04-12 0:00 ` Neil Brown
2007-04-11 23:22 ` Theodore Tso
2007-04-12 1:46 ` Neil Brown
2007-04-12 2:37 ` Jörn Engel
2007-04-12 5:57 ` Neil Brown
2007-04-12 9:33 ` Jörn Engel
2007-04-12 12:21 ` Theodore Tso
2007-04-12 17:18 ` J. Bruce Fields
2007-04-12 17:35 ` H. Peter Anvin
2007-04-16 3:05 ` Theodore Tso
2007-04-16 5:47 ` Neil Brown
2007-04-16 10:39 ` Theodore Tso
2007-04-16 6:18 ` Neil Brown
2007-04-16 11:07 ` Theodore Tso
2007-04-16 23:24 ` Neil Brown
2007-04-08 18:47 ` Theodore Tso
2007-04-08 19:13 ` H. Peter Anvin
2007-04-08 18:50 ` Ulrich Drepper
2007-04-07 23:44 ` Jan Engelhardt
2007-04-08 20:36 ` J. Bruce Fields
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