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From: ebiederm@xmission.com (Eric W. Biederman)
To: Christoph Hellwig <hch@infradead.org>
Cc: Greg KH <gregkh@suse.de>, Mark Ryden <markryde@gmail.com>,
	Benjamin Thery <benjamin.thery@bull.net>,
	David Shwatrz <dshwatrz@gmail.com>, Greg KH <greg@kroah.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Tejun Heo <htejun@gmail.com>,
	Daniel Lezcano <dlezcano@fr.ibm.com>,
	linux-kernel@vger.kernel.org, Al Viro <viro@ftp.linux.org.uk>,
	Linux Containers <containers@lists.osdl.org>,
	netdev@vger.kernel.org
Subject: Re: [PATCH 1/8] sysfs: Implement sysfs tagged directory support.
Date: Mon, 13 Oct 2008 20:20:05 -0700	[thread overview]
Message-ID: <m11vyjrhga.fsf@frodo.ebiederm.org> (raw)
In-Reply-To: <20081008130006.GB31684@infradead.org> (Christoph Hellwig's message of "Wed, 8 Oct 2008 09:00:06 -0400")

Christoph Hellwig <hch@infradead.org> writes:

> On Tue, Oct 07, 2008 at 03:27:12PM -0700, Eric W. Biederman wrote:
>> Al reviewed sysfs with my patchset on top of it.
>> 
>> Al's review found problems in  sysfs with my patchset on top of it.
>> 
>> If you look at what Al found the majority of those problems exist in sysfs
>> without my patches.
>
> And when something is crap your fix it firdt before piling up more shit
> on top of it.  And sysfs is a really severe case of that, and you're
> piling a _lot_ of shit ontop.

Chistoph, your comments and Al's would have been much more productive
if you have had said:

"I didn't like sysfs because it doesn't do things the way other filesystems
  with similar problems do things.  Can you please use common idioms?
  Making the code easier to read and making the code easier to maintain.
  Some of those constructs look awfully complex can you recheck you code
  and see if there is a simpler way to implement them."

That would have been honest and productive.  As it sits.  I have partially
inaccurate feedback from Al, useless feedback from you, and only my own
tough skin and determination to keep me going..

The fact that you and Al look at the code and can't easily make sense of
is a good sign that the code as written will be hard to maintain.  Al's
recent breakage of sysctl is a good example of that.

Eric

  reply	other threads:[~2008-10-14  3:30 UTC|newest]

Thread overview: 136+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-18 17:07 [PATCH 00/11] sysfs tagged directories V6 Benjamin Thery
2008-06-18 17:07 ` [PATCH 01/11] sysfs: Support for preventing unmounts Benjamin Thery
2008-06-18 17:44   ` Dave Hansen
2008-06-18 20:12     ` Eric W. Biederman
2008-06-19  8:54       ` Benjamin Thery
2008-06-19 16:32       ` Dave Hansen
2008-06-19 20:19         ` Benjamin Thery 
2008-06-18 17:07 ` [PATCH 02/11] sysfs: sysfs_get_dentry add a sb parameter Benjamin Thery
2008-06-18 17:07 ` [PATCH 03/11] sysfs: Implement __sysfs_get_dentry Benjamin Thery
2008-06-18 17:08 ` [PATCH 04/11] sysfs: Rename Support multiple superblocks Benjamin Thery
2008-06-18 17:08 ` [PATCH 05/11] sysfs: sysfs_chmod_file handle " Benjamin Thery
2008-06-22  4:46   ` Tejun Heo
2008-06-23 21:42     ` Daniel Lezcano
2008-06-24  4:45       ` Tejun Heo
2008-06-24 10:39         ` Daniel Lezcano
2008-06-24 13:37         ` Daniel Lezcano
2008-06-25 12:31           ` Tejun Heo
2008-06-18 17:08 ` [PATCH 06/11] sysfs: Implement sysfs tagged directory support Benjamin Thery
2008-06-23  2:05   ` Tejun Heo
2008-06-26 20:21     ` Eric W. Biederman
2008-06-29  3:51       ` Tejun Heo
2008-06-30 18:56         ` Eric W. Biederman
2008-06-30 21:44           ` Serge E. Hallyn
2008-07-01  7:50             ` Eric W. Biederman
2008-07-01  6:47           ` Tejun Heo
2008-07-01  9:20             ` Eric W. Biederman
2008-07-01 10:30               ` Tejun Heo
2008-07-01 12:30                 ` Eric W. Biederman
2008-07-02  3:24                   ` Tejun Heo
2008-07-02  3:53                     ` Eric W. Biederman
2008-07-02  4:37                       ` Tejun Heo
2008-07-02 16:49                         ` Eric W. Biederman
2008-07-03  0:15                           ` Greg KH
2008-07-03  3:18                           ` Tejun Heo
2008-07-03  5:11                             ` Eric W. Biederman
2008-07-03 10:56                               ` Daniel Lezcano
2008-07-03 12:27                                 ` Eric W. Biederman
2008-07-03 12:37                                   ` Benjamin Thery
2008-07-03 19:57                                     ` Eric W. Biederman
2008-07-03 12:55                                   ` Daniel Lezcano
2008-07-03 15:58                                   ` Tejun Heo
2008-07-03 18:29                                     ` Daniel Lezcano
2008-07-03 20:08                                     ` Eric W. Biederman
2008-07-04  0:48                                     ` [PATCH 00/15] sysfs support for namespaces Eric W. Biederman
2008-07-04  1:05                                       ` [PATCH 01/15] kobject: Cleanup kobject_rename and !CONFIG_SYSFS Eric W. Biederman
2008-07-04  1:07                                         ` [PATCH 02/15] sysfs: Support for preventing unmounts Eric W. Biederman
2008-07-04  1:08                                           ` [PATCH 03/15] sysfs: sysfs_get_dentry add a sb parameter Eric W. Biederman
2008-07-04  1:09                                             ` [PATCH 04/15] sysfs: Implement __sysfs_get_dentry Eric W. Biederman
2008-07-04  1:10                                               ` [PATCH 05/15] sysfs: Rename Support multiple superblocks Eric W. Biederman
2008-07-04  1:11                                                 ` [PATCH 06/15] Introduce sysfs_sd_setattr and fix sysfs_chmod Eric W. Biederman
2008-07-04  1:13                                                   ` [PATCH 07/15] sysfs: sysfs_chmod_file handle multiple superblocks Eric W. Biederman
2008-07-04  1:14                                                     ` [PATCH 08/15] sysfs: Make sysfs_mount static once again Eric W. Biederman
2008-07-04  1:16                                                       ` [PATCH 09/15] sysfs: Implement sysfs tagged directory support Eric W. Biederman
2008-07-04  1:17                                                         ` [PATCH 10/15] sysfs: Merge sysfs_rename_dir and sysfs_move_dir Eric W. Biederman
2008-07-04  1:18                                                           ` [PATCH 11/15] sysfs: Implement sysfs_delete_link and sysfs_rename_link Eric W. Biederman
2008-07-04  1:20                                                             ` [PATCH 12/15] driver core: Implement tagged directory support for device classes Eric W. Biederman
2008-07-04  1:21                                                               ` [PATCH 13/15] Revert "netns: Fix device renaming for sysfs" Eric W. Biederman
2008-07-04  1:22                                                                 ` [PATCH 14/15] netns: Enable tagging for net_class directories in sysfs Eric W. Biederman
2008-07-04  1:23                                                                   ` [PATCH 15/15] sysfs: user namespaces: fix bug with clone(CLONE_NEWUSER) with fairsched Eric W. Biederman
2008-07-04  7:50                                                               ` [PATCH 12/15] driver core: Implement tagged directory support for device classes Tejun Heo
2008-07-04 13:31                                                                 ` Eric W. Biederman
2008-07-04 13:57                                                                   ` Tejun Heo
2008-07-04 16:12                                                                     ` Greg KH
2008-07-04 21:49                                                                       ` Eric W. Biederman
2008-07-14  1:54                                                                       ` Eric W. Biederman
2008-07-16  3:25                                                                         ` Tejun Heo
2008-07-16  5:41                                                                           ` Eric W. Biederman
2008-07-16  5:50                                                                             ` Tejun Heo
2008-07-16  6:32                                                                               ` Eric W. Biederman
2008-07-16  6:48                                                                                 ` Tejun Heo
2008-07-16  7:02                                                                                   ` Tejun Heo
2008-07-16 19:07                                                                                     ` Eric W. Biederman
2008-07-16 21:09                                                                                   ` Eric W. Biederman
2008-07-17 23:08                                                                           ` Greg KH
2008-07-18 12:41                                                                             ` Tejun Heo
2008-07-18 18:49                                                                               ` Greg KH
2008-07-18 20:19                                                                                 ` Eric W. Biederman
2008-07-19  1:07                                                                                 ` Tejun Heo
2008-08-03  6:59                                                                                 ` Eric W. Biederman
2008-09-11 12:45                                                                                   ` Jiri Slaby
2008-09-11 13:05                                                                                     ` Benjamin Thery
2008-09-12  6:32                                                                                       ` Jiri Slaby
2008-07-04 22:00                                                                     ` Eric W. Biederman
2008-08-20  2:17                                                         ` [PATCH 09/15] sysfs: Implement sysfs tagged directory support Greg KH
2008-08-20  6:58                                                           ` Eric W. Biederman
2008-08-21  6:31                                                           ` [PATCH 0/8] sysfs namespace support Eric W. Biederman
2008-08-21  6:33                                                             ` [PATCH 1/8] sysfs: Implement sysfs tagged directory support Eric W. Biederman
2008-08-21  6:34                                                               ` [PATCH 2/8] sysfs: Merge sysfs_rename_dir and sysfs_move_dir Eric W. Biederman
2008-08-21  6:35                                                                 ` [PATCH 3/8] sysfs: Implement sysfs_delete_link and sysfs_rename_link Eric W. Biederman
2008-08-21  6:36                                                                   ` [PATCH 5/8] sysfs: Remove sysfs_create_link_nowarn Eric W. Biederman
2008-08-21  6:38                                                                     ` [PATCH 6/8] Revert "netns: Fix device renaming for sysfs" Eric W. Biederman
2008-08-21  6:39                                                                       ` [PATCH 7/8] netns: Enable tagging for net_class directories in sysfs Eric W. Biederman
2008-08-21  6:40                                                                         ` [PATCH 8/8] sysfs: user namespaces: fix bug with clone(CLONE_NEWUSER) with fairsched Eric W. Biederman
2008-08-21  6:47                                                                         ` [PATCH 7/8] netns: Enable tagging for net_class directories in sysfs David Miller
2008-08-21  6:47                                                                       ` [PATCH 6/8] Revert "netns: Fix device renaming for sysfs" David Miller
2008-08-21  6:37                                                                   ` [PATCH 4/8] driver core: Implement tagged directory support for device classes Eric W. Biederman
2008-08-27 15:18                                                               ` [PATCH 1/8] sysfs: Implement sysfs tagged directory support Benjamin Thery
2008-09-02 13:54                                                                 ` Mark Ryden
2008-09-02 14:03                                                                   ` Benjamin Thery
2008-09-02 17:01                                                                     ` Greg KH
2008-09-04  5:33                                                                       ` David Shwatrz
2008-09-04  6:44                                                                         ` Benjamin Thery
2008-09-08 18:39                                                                           ` Mark Ryden
2008-10-07 16:39                                                                           ` Mark Ryden
2008-10-07 16:48                                                                             ` Greg KH
2008-10-07 20:31                                                                               ` Eric W. Biederman
2008-10-07 21:09                                                                                 ` Greg KH
2008-10-07 22:27                                                                                   ` Eric W. Biederman
2008-10-08 13:00                                                                                     ` Christoph Hellwig
2008-10-14  3:20                                                                                       ` Eric W. Biederman [this message]
2008-10-07 16:52                                                                             ` Daniel Lezcano
2008-08-21  6:37                                                             ` [PATCH 0/8] sysfs namespace support David Miller
2008-07-04  6:44                                                       ` [PATCH 08/15] sysfs: Make sysfs_mount static once again Tejun Heo
2008-07-04  6:44                                                     ` [PATCH 07/15] sysfs: sysfs_chmod_file handle multiple superblocks Tejun Heo
2008-07-04  6:40                                                   ` [PATCH 06/15] Introduce sysfs_sd_setattr and fix sysfs_chmod Tejun Heo
2008-07-04  6:33                                         ` [PATCH 01/15] kobject: Cleanup kobject_rename and !CONFIG_SYSFS Tejun Heo
2008-07-04  1:27                                       ` [PATCH 00/15] sysfs support for namespaces Eric W. Biederman
2008-07-06  4:42                                       ` Eric W. Biederman
2008-07-07 11:41                                         ` Cornelia Huck
2008-07-07 12:22                                           ` Eric W. Biederman
2008-06-18 17:08 ` [PATCH 07/11] sysfs: Implement sysfs_delete_link and sysfs_rename_link Benjamin Thery
2008-06-23  2:13   ` Tejun Heo
2008-06-26 20:24     ` Eric W. Biederman
2008-06-29  3:35       ` Tejun Heo
2008-06-30  3:02         ` Eric W. Biederman
2008-06-18 17:08 ` [PATCH 08/11] driver core: Implement tagged directory support for device classes Benjamin Thery
2008-06-18 17:08 ` [PATCH 09/11] sysfs: add sysfs_ns_exit routine Benjamin Thery
2008-06-18 20:19   ` Eric W. Biederman
2008-06-23  2:16   ` Tejun Heo
2008-06-18 17:09 ` [PATCH 10/11] netns: Enable tagging for net_class directories in sysfs Benjamin Thery
2008-06-23  2:18   ` Tejun Heo
2008-06-18 17:09 ` [PATCH 11/11] sysfs: user namespaces: fix bug with clone(CLONE_NEWUSER) with fairsched Benjamin Thery
2008-06-23  2:18   ` Tejun Heo
2008-06-25 18:44     ` Serge E. Hallyn
2008-06-25 21:11       ` Eric W. Biederman
2008-06-26 13:07         ` Serge E. Hallyn

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