linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: ebiederm@xmission.com (Eric W. Biederman)
To: Dave Hansen <haveblue@us.ibm.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>, Kirill Korotaev <dev@sw.ru>,
	linux-kernel@vger.kernel.org, herbert@13thfloor.at,
	devel@openvz.org, sam@vilain.net, xemul@sw.ru,
	James Morris <jmorris@namei.org>
Subject: Re: [RFC][PATCH 4/5] utsname namespaces: sysctl hack
Date: Wed, 19 Apr 2006 10:52:54 -0600	[thread overview]
Message-ID: <m1u08pld7d.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <1145463814.31812.13.camel@localhost.localdomain> (Dave Hansen's message of "Wed, 19 Apr 2006 09:23:34 -0700")

Dave Hansen <haveblue@us.ibm.com> writes:

> Besides ipc and utsnames, can anybody think of some other things in
> sysctl that we really need to virtualize?

All of the networking entries.

> It seems to me that most of the other stuff is kernel-global and we
> simply won't allow anything in a container to touch it.
>
> That said, there may be things in the future that need to get added as
> we separate out different subsystems.  Things like min_free_kbytes could
> have a container-centric meaning (although I think that is probably a
> really bad one to mess with).
>
> I have a slightly revamped way of doing the sysv namespace sysctl code.
> I've attached a couple of (still pretty raw) patches.  Do these still
> fall in the "hacks" category?

Only in that you attacked the wrong piece of the puzzle.
The strategy table entries simply need to die, or be rewritten
to use the appropriate proc entries.

The proc entries are the real interface, and the two pieces
don't share an implementation unfortunately.

Eric

  reply	other threads:[~2006-04-19 16:55 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-07 18:36 [RFC][PATCH 0/5] uts namespaces: Introduction Serge E. Hallyn
2006-04-07 18:36 ` [RFC][PATCH 5/5] uts namespaces: Enable UTS namespaces debugging Serge E. Hallyn
2006-04-07 18:36 ` [RFC][PATCH 2/5] uts namespaces: Switch to using uts namespaces Serge E. Hallyn
2006-04-07 19:17   ` Sam Ravnborg
2006-04-07 19:25     ` Serge E. Hallyn
2006-04-11 12:26   ` Kirill Korotaev
2006-04-11 21:04     ` Sam Vilain
2006-04-12  5:01       ` Serge E. Hallyn
2006-04-12  6:00         ` Eric W. Biederman
2006-04-19 15:00           ` Serge E. Hallyn
2006-04-07 18:36 ` [RFC][PATCH 3/5] uts namespaces: Use init uts_namespace when appropriate Serge E. Hallyn
2006-04-07 18:36 ` [RFC][PATCH 4/5] utsname namespaces: sysctl hack Serge E. Hallyn
2006-04-19 15:17   ` Kirill Korotaev
2006-04-19 15:21     ` Serge E. Hallyn
2006-04-19 15:50       ` Kirill Korotaev
2006-04-19 16:54         ` Cedric Le Goater
2006-04-19 17:10           ` Eric W. Biederman
2006-04-19 17:10         ` Serge E. Hallyn
2006-04-19 15:52       ` Eric W. Biederman
2006-04-19 16:23         ` Dave Hansen
2006-04-19 16:52           ` Eric W. Biederman [this message]
2006-04-19 17:19             ` Dave Hansen
2006-04-19 17:37               ` Eric W. Biederman
2006-04-19 17:48               ` Eric W. Biederman
2006-04-19 15:29     ` Eric W. Biederman
2006-04-19 17:51       ` Serge E. Hallyn
2006-04-19 18:27         ` Eric W. Biederman
2006-04-19 20:24           ` Serge E. Hallyn
2006-04-19 21:44           ` Sam Vilain
2006-04-20 17:05             ` Serge E. Hallyn
2006-04-25 22:00             ` Serge E. Hallyn
2006-04-26  4:09               ` Sam Vilain
2006-04-26 10:28                 ` Christoph Hellwig
2006-04-27 12:32                 ` Eric W. Biederman
2006-04-07 18:36 ` [RFC][PATCH 1/5] uts namespaces: Implement utsname namespaces Serge E. Hallyn
2006-04-07 19:13   ` Sam Ravnborg
2006-04-07 19:20     ` Serge E. Hallyn
2006-04-07 19:39     ` Serge E. Hallyn
2006-04-07 20:47   ` James Morris
2006-04-07 22:13     ` Serge E. Hallyn
2006-04-08 13:44   ` Andi Kleen
2006-04-08 13:45   ` Andi Kleen
2006-04-08 20:28     ` Serge E. Hallyn
2006-04-09  6:00       ` Andi Kleen
2006-04-09 19:08         ` Eric W. Biederman
2006-04-07 19:06 ` [RFC][PATCH 0/5] uts namespaces: Introduction Eric W. Biederman
2006-04-07 19:28   ` Serge E. Hallyn
2006-04-07 19:39     ` Eric W. Biederman
2006-04-11 12:32 ` Kirill Korotaev
2006-04-11 14:01   ` Serge E. Hallyn

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=m1u08pld7d.fsf@ebiederm.dsl.xmission.com \
    --to=ebiederm@xmission.com \
    --cc=dev@sw.ru \
    --cc=devel@openvz.org \
    --cc=haveblue@us.ibm.com \
    --cc=herbert@13thfloor.at \
    --cc=jmorris@namei.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=sam@vilain.net \
    --cc=serue@us.ibm.com \
    --cc=xemul@sw.ru \
    /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;
as well as URLs for NNTP newsgroup(s).