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From: Tejun Heo <tj@kernel.org>
To: David Rientjes <rientjes@google.com>
Cc: Mike Galbraith <mgalbraith@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Paul Menage <paul@paulmenage.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Li Zefan <lizefan@huawei.com>
Subject: Re: [patch 0/2] cpusets, cpu_cgroup: disallow attaching kthreadd
Date: Thu, 5 Apr 2012 15:58:54 -0700	[thread overview]
Message-ID: <20120405225854.GE29517@google.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1204051542280.25838@chino.kir.corp.google.com>

Hello,

On Thu, Apr 05, 2012 at 03:55:11PM -0700, David Rientjes wrote:
> > I can see your point but the problem is that it conflicts with the
> > long term direction cgroup is taking and that cgroup seems generally
> > over-engineered to allow too many things which aren't too necessary to
> > the point where it's a giant pain in the ass for the subsystems and
> > people involved, so I'm far more likely to go for chopping down and
> > restricting stuff if it's not strictly necessary.
> 
> How does kthreadd's placement conflict with the long-term direction of 
> cgroups?

Because there's only single hierarchy, random subsystem saying no on
->can_attach() doesn't work.

Thanks.

-- 
tejun

  reply	other threads:[~2012-04-05 22:58 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-03 17:58 [patch] cgroups: disallow attaching kthreadd Mike Galbraith
2012-04-03 18:49 ` Tejun Heo
2012-04-04  2:34   ` Mike Galbraith
2012-04-04 23:06     ` Tejun Heo
2012-04-04 23:10       ` Tejun Heo
2012-04-04  7:15 ` David Rientjes
2012-04-04 10:38   ` Mike Galbraith
2012-04-04 11:29     ` David Rientjes
2012-04-04 12:30       ` Mike Galbraith
2012-04-04 21:17         ` David Rientjes
2012-04-04 23:09           ` Tejun Heo
2012-04-04 23:14             ` David Rientjes
2012-04-05  4:47             ` Mike Galbraith
2012-04-05  4:58               ` David Rientjes
2012-04-05  5:49                 ` Mike Galbraith
2012-04-05  6:07                   ` David Rientjes
2012-04-05  6:42                     ` Mike Galbraith
2012-04-05  6:49                       ` David Rientjes
2012-04-05  7:14                         ` [patch 0/2] cpusets, cpu_cgroup: " David Rientjes
2012-04-05  7:14                           ` [patch 1/2] cpusets: " David Rientjes
2012-04-05  7:14                           ` [patch 2/2] cpu_cgroup: " David Rientjes
2012-04-05 16:08                           ` [patch 0/2] cpusets, " Tejun Heo
2012-04-05 21:26                             ` David Rientjes
2012-04-05 21:37                               ` Tejun Heo
2012-04-05 21:46                                 ` Tejun Heo
2012-04-06  7:50                                   ` Li Zefan
2012-04-06 15:54                                     ` Tejun Heo
2012-04-05 22:03                                 ` David Rientjes
2012-04-05 22:24                                   ` Tejun Heo
2012-04-05 22:31                                     ` Tejun Heo
2012-04-05 22:55                                     ` David Rientjes
2012-04-05 22:58                                       ` Tejun Heo [this message]
2012-04-05 23:05                                         ` David Rientjes
2012-04-05 23:13                                           ` Tejun Heo
2012-04-05 23:40                                             ` David Rientjes
2012-04-06 15:52                                               ` Tejun Heo
2012-04-06 18:26                                                 ` Peter Zijlstra
2012-04-06 20:49                                                   ` David Rientjes
2012-04-07 15:02                                                     ` Hiroyuki Kamezawa
2012-04-10  0:52                                                       ` David Rientjes
2012-04-14 11:35                                                         ` Peter Zijlstra
2012-04-20 17:55                                                         ` Tejun Heo
2012-04-06 20:46                                                 ` David Rientjes
2012-04-14 11:28                                                   ` Peter Zijlstra
2012-04-05  7:36                         ` [patch] cgroups: " Mike Galbraith
2012-04-05  8:00                           ` David Rientjes
2012-04-14 11:17                     ` Peter Zijlstra
2012-04-05 16:11               ` Tejun Heo
2012-04-20 17:57 ` Tejun Heo
2012-04-21  5:31   ` Mike Galbraith
2012-04-21  6:54     ` Li Zefan
2012-04-21  7:13       ` Mike Galbraith
2012-04-23 18:05         ` Tejun Heo

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