From: Peter Staubach <staubach@redhat.com>
To: Jan Blunck <j.blunck@tu-harburg.de>
Cc: Chris Wedgwood <cw@f00f.org>,
J?rn Engel <joern@wohnheim.fh-wedel.de>,
Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
Linux-Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ramfs: pretend dirent sizes
Date: Wed, 20 Jul 2005 14:52:48 -0400 [thread overview]
Message-ID: <42DE9D80.3070905@redhat.com> (raw)
In-Reply-To: <42DE9C71.7090903@tu-harburg.de>
Jan Blunck wrote:
>
> I don't want to tell where these are in general, I need an easy way to
> seek to the m'th directory + offset position without reading every
> single dirent. With i_sizes != 0 it is straight forward to use "the
> sum of the m directory's i_sizes + offset" as the f_pos to seek to.
> For this purpose it is not necessary to have a "honest" i_size as long
> as the i_size is bigger than the offset of the last dirent in the
> directory.
>
You are not going to get this functionality. It is simply not how
directories
work nowadays. Very few file systems are going to be usable if you insist
upon this semantic. It is simply not possible to guess, with variable sized
entries and with distributed directory structures.
ps
next prev parent reply other threads:[~2005-07-20 18:57 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-15 3:01 [PATCH] ramfs: pretend dirent sizes Jan Blunck
2005-07-15 3:11 ` Andrew Morton
2005-07-15 10:16 ` Jan Blunck
2005-07-15 18:52 ` Linus Torvalds
2005-07-16 0:39 ` Chris Wedgwood
2005-07-19 9:28 ` Jan Blunck
2005-07-19 16:16 ` Chris Wedgwood
2005-07-19 18:22 ` Jan Blunck
2005-07-19 18:32 ` Chris Wedgwood
2005-07-19 19:14 ` Jan Blunck
2005-07-19 19:16 ` Chris Wedgwood
2005-07-20 11:21 ` Jörn Engel
2005-07-20 18:11 ` Chris Wedgwood
2005-07-20 18:48 ` Jan Blunck
2005-07-20 18:52 ` Peter Staubach [this message]
2005-07-21 7:26 ` Jörn Engel
2005-07-21 7:20 ` Jörn Engel
2005-07-21 7:25 ` Chris Wedgwood
2005-07-21 7:27 ` Jörn Engel
2005-07-20 18:24 ` Jan Blunck
2005-07-20 18:50 ` Peter Staubach
2005-07-19 9:46 ` Jan Blunck
[not found] <4qoKs-6yv-13@gated-at.bofh.it>
[not found] ` <4qoU5-6CQ-3@gated-at.bofh.it>
[not found] ` <4qvsI-32Y-17@gated-at.bofh.it>
2005-07-15 13:12 ` Bodo Eggert
2005-07-19 9:13 ` Jan Blunck
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