netdev - Re: [PATCH v3 1/7] Basic kernel memory functionality for the Memory Controller

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Date:	Wed, 28 Sep 2011 09:03:39 -0300
From:	Glauber Costa <glommer@...allels.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	<linux-kernel@...r.kernel.org>, <paul@...lmenage.org>,
	<lizf@...fujitsu.com>, <ebiederm@...ssion.com>,
	<davem@...emloft.net>, <gthelen@...gle.com>,
	<netdev@...r.kernel.org>, <linux-mm@...ck.org>,
	<kirill@...temov.name>
Subject: Re: [PATCH v3 1/7] Basic kernel memory functionality for the Memory
 Controller

On 09/27/2011 09:58 PM, KAMEZAWA Hiroyuki wrote:
> On Mon, 26 Sep 2011 20:18:39 -0300
> Glauber Costa<glommer@...allels.com>  wrote:
>
>> On 09/26/2011 07:34 AM, KAMEZAWA Hiroyuki wrote:
>>> On Sun, 18 Sep 2011 21:56:39 -0300
>>> Glauber Costa<glommer@...allels.com>   wrote:
> "If parent sets use_hierarchy==1, children must have the same kmem_independent value
>>> with parant's one."
>>>
>>> How do you think ? I think a hierarchy must have the same config.
>> BTW, Kame:
>>
>> Look again (I forgot myself when I first replied to you)
>> Only in the root cgroup those files get registered.
>> So shouldn't be a problem, because children won't even
>> be able to see them.
>>
>> Do you agree with this ?
>>
>
> agreed.
>

Actually it is the other way around, following previous suggestions...

The root cgroup does *not* get those files registered, since we don't 
intend to do any kernel memory limitation for it. The others get it.
Given that, I will proceed writing some code to respect parent cgroup's
hierarchy.
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