From: Arnd Bergmann <arnd@arndb.de>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: Re: [PATCH 18/18] vfs: make no_llseek the default
Date: Thu, 8 Jul 2010 14:08:06 +0200 [thread overview]
Message-ID: <201007081408.06415.arnd@arndb.de> (raw)
In-Reply-To: <201007082025.HDB82385.OOVHQSLtFFMFJO@I-love.SAKURA.ne.jp>
On Thursday 08 July 2010, Tetsuo Handa wrote:
> Hello.
>
> Arnd Bergmann wrote:
> > All file operations now have an explicit .llseek
> > operation pointer, so we can change the default
> > action for future code.
>
> I saw patch for SELinux and IMA, but not for TOMOYO.
> TOMOYO has
>
> static const struct file_operations tomoyo_operations
>
> without .llseek operation pointer.
>
> TOMOYO does not deal offset pointer. Thus seek operation makes
> no sense. But returning -ESPIPE for seek operation might break
> some applications. What should I do for TOMOYO?
The semantic patch (16/18 in this series) had detected that case,
so I did not have to manually create a patch as for selinux
and ima.
The behaviour you want is noop_llseek, which is what gets used
when the semantic patch is applied. If you wish, you can
do the patch yourself and add .llseek = noop_llseek to the file
operations in your tree.
Arnd
next prev parent reply other threads:[~2010-07-08 12:08 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-07 21:40 [PATCH 00/18] VFS: turn no_llseek into the default Arnd Bergmann
2010-07-07 21:40 ` [PATCH 01/18] drm: use noop_llseek Arnd Bergmann
2010-07-07 21:40 ` [PATCH 02/18] net/wireless: use generic_file_llseek in debugfs Arnd Bergmann
2010-07-07 21:40 ` [PATCH 03/18] lkdtm: " Arnd Bergmann
2010-07-22 0:06 ` Frederic Weisbecker
2010-07-07 21:40 ` [PATCH 04/18] ib/qib: use generic_file_llseek Arnd Bergmann
2010-07-21 18:40 ` Roland Dreier
2010-07-07 21:40 ` [PATCH 05/18] arm/omap: use generic_file_llseek in iommu_debug Arnd Bergmann
2010-07-07 21:40 ` [PATCH 06/18] spufs: use llseek in all file operations Arnd Bergmann
2010-07-08 1:15 ` Jeremy Kerr
2010-07-08 13:02 ` Arnd Bergmann
2010-07-08 13:29 ` [PATCH v2] " Arnd Bergmann
2010-07-07 21:40 ` [PATCH 07/18] staging: " Arnd Bergmann
2010-07-07 21:40 ` [PATCH 08/18] selinux: use generic_file_llseek Arnd Bergmann
2010-07-08 14:52 ` Eric Paris
2010-07-11 23:44 ` James Morris
2010-07-07 21:40 ` [PATCH 09/18] tracing: use generic_file_llseek for debugfs Arnd Bergmann
2010-07-07 21:58 ` Frederic Weisbecker
2010-07-21 20:52 ` [tip:perf/core] tracing: Use " tip-bot for Arnd Bergmann
2010-07-07 21:40 ` [PATCH 10/18] ibmasmfs: use generic_file_llseek Arnd Bergmann
2010-07-07 21:40 ` [PATCH 11/18] oprofile: make event buffer nonseekable Arnd Bergmann
2010-07-09 7:51 ` Robert Richter
2010-07-26 9:06 ` Robert Richter
2010-07-07 21:40 ` [PATCH 12/18] raw: use explicit llseek file operations Arnd Bergmann
2010-07-21 23:50 ` Frederic Weisbecker
2010-07-07 21:40 ` [PATCH 13/18] ima: use generic_file_llseek for securityfs Arnd Bergmann
2010-07-08 12:50 ` Mimi Zohar
2010-07-08 13:00 ` Arnd Bergmann
2010-07-08 13:18 ` Mimi Zohar
2010-07-08 22:52 ` James Morris
2010-07-09 13:00 ` Arnd Bergmann
2010-07-11 23:45 ` James Morris
2010-07-07 21:40 ` [PATCH 14/18] irda/irnet: use noop_llseek Arnd Bergmann
2010-07-07 21:40 ` [PATCH 15/18] viotape: " Arnd Bergmann
2010-07-21 23:59 ` Frederic Weisbecker
2010-07-07 21:40 ` [PATCH 16/18] llseek: automatically add .llseek fop Arnd Bergmann
2010-07-07 21:55 ` Mike Frysinger
2010-07-07 22:10 ` Arnd Bergmann
2010-07-08 12:17 ` Boaz Harrosh
2010-07-08 12:23 ` Arnd Bergmann
2010-07-08 12:32 ` Boaz Harrosh
2010-07-07 21:40 ` [PATCH 17/18] vfs: don't use BKL in default_llseek Arnd Bergmann
2010-07-07 21:40 ` [PATCH 18/18] vfs: make no_llseek the default Arnd Bergmann
2010-07-08 11:25 ` Tetsuo Handa
2010-07-08 12:08 ` Arnd Bergmann [this message]
2010-07-08 12:57 ` Tetsuo Handa
2010-07-08 13:18 ` Arnd Bergmann
2010-07-08 22:55 ` James Morris
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201007081408.06415.arnd@arndb.de \
--to=arnd@arndb.de \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=penguin-kernel@i-love.sakura.ne.jp \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox