linux-kernel - Re: [Libcg-devel] [RFC] How to handle the rules engine for cgroups

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Message-ID: <20080710172751.GC4235@linux.vnet.ibm.com>
Date:	Thu, 10 Jul 2008 22:57:51 +0530
From:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	Paul Menage <menage@...gle.com>,
	Peter Zijlstra <pzijlstr@...hat.com>,
	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Libcg Devel Mailing List <libcg-devel@...ts.sourceforge.net>,
	Morton Andrew Morton <akpm@...ux-foundation.org>,
	kamezawa.hiroyu@...fujitsu.com
Subject: Re: [Libcg-devel] [RFC] How to handle the rules engine for cgroups

On Thu, Jul 10, 2008 at 01:19:39PM -0400, Vivek Goyal wrote:
> On Thu, Jul 10, 2008 at 09:41:06AM -0700, Paul Menage wrote:
> > On Thu, Jul 10, 2008 at 7:06 AM, Vivek Goyal <vgoyal@...hat.com> wrote:
> > >
> > > This looks interesting. So above method should solve atleast the
> > > reliability issue of event transport to user space. Got few thougts.
> > >
> > > - Hopefully number of hiearchies will not explode as we will be
> > >  mounting one hierarchies per event type (uid change, gid change,
> > >  exec, maybe fork etc.).
> > 
> > In what circumstances would you want to reclassify processes to a
> > different cgroup on a fork?
> 
> I don't know. Balbir had mentioned in one of the mails in this thread
> regarding getting notification on fork.

fork or exec? I believe reclassifications would happen only on exec.

-- 
regards,
Dhaval
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