From: Grzegorz Nosek <root-AfQBxy1nhrQ00sYp1HPQUA@public.gmane.org>
To: "Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: "Serge E. Hallyn"
<public-serue-r/Jw6+rmf7HQT0dZR+AlfA-z5DuStaUktnZ+VzJOa5vwg@public.gmane.org>,
public-containers-qjLDD68F18O7TbgM5vRIOg-z5DuStaUktnZ+VzJOa5vwg@public.gmane.org,
Benny Amorsen
<benny+usenet-sjWZyPj6pFx/SzgSGea1oA@public.gmane.org>
Subject: Re: [RFC][PATCH] IP address restricting cgroup subsystem
Date: Fri, 9 Jan 2009 17:57:59 +0100 [thread overview]
Message-ID: <20090109165759.GA24890@megiteam.pl> (raw)
In-Reply-To: <20090109162247.GA7925-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
On pią, sty 09, 2009 at 10:22:48 -0600, Serge E. Hallyn wrote:
> Well, I think right now we're talking about 'how to do it with network
> namespaces' mostly bc we're curious. I've heard no strong objections
> to your patch, so please do resubmit once you've addressed Li's
> comments.
Thanks! Will resend. But I'd like to hear some comments about locking
access to the IP address. As Li mentioned, I need the cgroup_lock() to
modify it as I inspect the hierarchy there. However, I don't know what
locking would be required on the _read_ side. Can I expect the address
to be always accessed atomically? What should I use for e.g. IPv6?
A seqlock? RCU (somehow)?
Best regards,
Grzegorz Nosek
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next prev parent reply other threads:[~2009-01-09 16:57 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-06 23:05 [RFC][PATCH] IP address restricting cgroup subsystem Grzegorz Nosek
[not found] ` <20090106230554.GB25228-IaEwMO9oKu/77SC2UrCW1JJg/dWx8T/9@public.gmane.org>
2009-01-07 6:01 ` Li Zefan
[not found] ` <49644526.8030205-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2009-01-07 7:38 ` Grzegorz Nosek
2009-01-07 8:36 ` Li Zefan
2009-01-07 9:16 ` Grzegorz Nosek
2009-01-07 9:33 ` Li Zefan
2009-01-07 9:37 ` Grzegorz Nosek
2009-01-09 21:38 ` [Devel] " Paul Menage
2009-01-10 4:50 ` Li Zefan
2009-01-10 16:14 ` Paul Menage
2009-01-12 2:20 ` Li Zefan
2009-01-14 2:07 ` Paul Menage
2009-01-14 2:47 ` Li Zefan
2009-01-14 2:50 ` Paul Menage
2009-01-07 18:07 ` Serge E. Hallyn
[not found] ` <20090107180752.GA19153-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-01-07 19:15 ` Grzegorz Nosek
[not found] ` <20090107191536.GA15159-yp6mvK3Bdd2rDJvtcaxF/A@public.gmane.org>
2009-01-07 19:32 ` Serge E. Hallyn
[not found] ` <20090107193234.GA22625-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-01-08 12:43 ` Benny Amorsen
[not found] ` <20090109144122.GA9685@megiteam.pl>
[not found] ` <20090109162247.GA7925@us.ibm.com>
[not found] ` <20090109162247.GA7925-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-01-09 16:57 ` Grzegorz Nosek [this message]
2009-01-09 16:54 ` Dan Smith
[not found] ` <87priwifnu.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-01-09 17:43 ` Guenter Roeck
[not found] ` <20090109174334.GA4526-gvzKVTG1yJJBDgjK7y7TUQ@public.gmane.org>
2009-01-09 18:12 ` Dan Smith
[not found] ` <87ljtkic1j.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-01-09 22:37 ` Guenter Roeck
[not found] ` <20090109223756.GA22738-gvzKVTG1yJJBDgjK7y7TUQ@public.gmane.org>
2009-01-09 22:47 ` Serge E. Hallyn
[not found] ` <20090109224742.GA15227-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-01-09 23:37 ` Guenter Roeck
2009-01-09 18:30 ` Serge E. Hallyn
[not found] ` <20090109183046.GA14063-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-01-13 16:23 ` Dan Smith
2009-01-09 21:58 ` [Devel] " Paul Menage
[not found] ` <6599ad830901091358m11effdbegeff6cbb7ee28e262-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-01-10 11:20 ` Grzegorz Nosek
[not found] ` <20090110112009.GA12336-yp6mvK3Bdd2rDJvtcaxF/A@public.gmane.org>
2009-01-10 16:21 ` Paul Menage
[not found] ` <6599ad830901100821q2c943d38i314c00f7db51b4f0-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-01-11 0:25 ` Benny Amorsen
2009-01-11 10:19 ` Grzegorz Nosek
[not found] ` <20090111101946.GA14325-yp6mvK3Bdd2rDJvtcaxF/A@public.gmane.org>
2009-01-14 2:21 ` Paul Menage
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