From: Will Taber <wtaber@us.ibm.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jeff Moyer <jmoyer@redhat.com>, Ian Kent <raven@themaw.net>,
Trond Myklebust <trond.myklebust@fys.uio.no>,
Ram Pai <linuxram@us.ibm.com>,
autofs mailing list <autofs@linux.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: [autofs] [RFC PATCH]autofs4: hang and proposed fix
Date: Wed, 07 Dec 2005 09:52:04 -0500 [thread overview]
Message-ID: <4396F714.1010407@us.ibm.com> (raw)
In-Reply-To: <20051206214033.GA31000@infradead.org>
Christoph Hellwig wrote:
> To rephrease the above: With current mainline the nameidata argument
> is always valid when ->lookup or ->d_revalidate are called except when
> the filesystem uses lookup_one_len. lookup_one_len is a helper for fileystem
> usage that is only valid to be used on the filesystems own trees.
>
Is this documented anywhere? How is one to know about this restriction
since it isn't obvious from the code? And if this function is only to
be used to lookup in ones own filesystem how is a filesystem supposed to
lookup a file in another filesystem if they already have a directory
dentry in hand? Walking up the dentry tree to recreate a path name so
you can call path_walk seems a bit much. Without this capablility how
does one write a stackable file system?
Will
next prev parent reply other threads:[~2005-12-07 14:52 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-16 10:17 [RFC PATCH]autofs4: hang and proposed fix Ram Pai
2005-11-16 12:41 ` [autofs] " Ian Kent
2005-11-16 16:50 ` Ram Pai
2005-11-16 22:57 ` Ian Kent
2005-11-17 1:52 ` [autofs] " Ram Pai
2005-11-17 18:50 ` Ian Kent
2005-11-17 19:19 ` William H. Taber
2005-11-17 20:39 ` Ram Pai
2005-11-17 22:31 ` William H. Taber
2005-11-18 14:57 ` Ian Kent
2005-11-18 14:54 ` Ian Kent
2005-11-18 14:44 ` Ian Kent
2005-11-18 15:20 ` William H. Taber
2005-11-18 16:30 ` Ian Kent
2005-11-18 17:12 ` William H. Taber
2005-11-18 18:57 ` Ram Pai
2005-11-18 20:08 ` William H. Taber
2005-11-19 2:52 ` Ian Kent
2005-11-21 16:40 ` William H. Taber
2005-11-22 13:13 ` Ian Kent
2005-11-22 17:48 ` [autofs] " William H. Taber
2005-11-23 14:11 ` Ian Kent
2005-11-23 16:42 ` William H. Taber
2005-11-23 17:52 ` Ian Kent
2005-11-23 18:47 ` William H. Taber
2005-11-23 17:52 ` Ian Kent
2005-11-19 1:40 ` [autofs] " Ian Kent
2005-11-16 15:22 ` Jeff Moyer
2005-11-16 15:22 ` Jeff Moyer
2005-11-16 17:00 ` [autofs] " Ram Pai
2005-11-16 18:25 ` Jeff Moyer
2005-11-16 19:24 ` William H. Taber
2005-11-16 19:51 ` Ram Pai
2005-11-27 10:47 ` Ian Kent
2005-11-28 17:19 ` William H. Taber
2005-11-28 23:12 ` Badari Pulavarty
2005-11-29 14:19 ` Ian Kent
2005-11-29 16:34 ` William H. Taber
2005-11-30 14:02 ` Ian Kent
2005-11-30 16:49 ` Badari Pulavarty
2005-11-30 17:04 ` Trond Myklebust
2005-11-30 21:10 ` William H. Taber
2005-11-29 14:20 ` Ian Kent
2005-11-30 1:16 ` [autofs] " Jeff Moyer
2005-11-30 1:16 ` Jeff Moyer
2005-11-30 1:56 ` Trond Myklebust
2005-11-30 4:15 ` Jeff Moyer
2005-11-30 6:14 ` Trond Myklebust
2005-11-30 15:44 ` Ian Kent
2005-11-30 15:53 ` [autofs] " Trond Myklebust
2005-11-30 16:12 ` Ian Kent
2005-11-30 16:27 ` Ian Kent
2005-11-30 16:45 ` [autofs] " Trond Myklebust
2005-11-30 20:32 ` William H. Taber
2005-11-30 20:53 ` Trond Myklebust
2005-11-30 21:30 ` William H. Taber
2005-11-30 22:32 ` Trond Myklebust
2005-12-01 16:27 ` William H. Taber
2005-12-01 12:09 ` Ian Kent
2005-12-01 16:30 ` William H. Taber
2005-12-02 13:49 ` Ian Kent
2005-12-02 14:07 ` Jeff Moyer
2005-12-02 15:21 ` Ian Kent
2005-12-02 16:35 ` [autofs] " Will Taber
2005-12-02 17:11 ` Ian Kent
2005-12-02 15:34 ` Will Taber
2005-12-02 17:29 ` Ian Kent
2005-12-02 18:12 ` Trond Myklebust
2005-12-04 12:56 ` Christoph Hellwig
2005-12-04 12:57 ` Christoph Hellwig
2005-12-04 14:58 ` Ian Kent
2005-12-04 17:17 ` [autofs] " Christoph Hellwig
2005-12-05 14:02 ` Ian Kent
2005-12-06 21:20 ` Jeff Moyer
2005-12-06 21:40 ` Christoph Hellwig
2005-12-06 22:37 ` Jeff Moyer
2005-12-07 14:52 ` Will Taber [this message]
2005-12-07 15:18 ` Christoph Hellwig
2005-12-07 15:22 ` Brian Long
2005-12-07 15:25 ` Christoph Hellwig
2005-12-07 17:46 ` Will Taber
2005-12-08 14:16 ` Ian Kent
2005-12-09 12:12 ` Christoph Hellwig
2005-12-09 13:33 ` John T. Kohl
2005-12-13 18:39 ` Christoph Hellwig
2005-12-04 14:56 ` Ian Kent
2005-12-02 19:04 ` [autofs] " Will Taber
2005-12-04 9:39 ` Ian Kent
2005-12-02 16:04 ` [autofs] " Jeff Moyer
2005-12-02 17:36 ` Ian Kent
2005-12-02 18:33 ` [autofs] " Will Taber
2005-12-04 9:52 ` Ian Kent
2005-12-04 14:54 ` Ian Kent
2005-12-05 15:40 ` Ian Kent
2005-11-30 14:48 ` [autofs] " Ian Kent
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