linux-kernel - Re: [-mm] Disable the memory controller by default

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Message-ID: <2f11576a0804070516r185bff87t449c315bd7787c7e@mail.gmail.com>
Date:	Mon, 7 Apr 2008 21:16:39 +0900
From:	"KOSAKI Motohiro" <m-kosaki@...es.dti.ne.jp>
To:	balbir@...ux.vnet.ibm.com
Cc:	"Andi Kleen" <andi@...stfloor.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"YAMAMOTO Takashi" <yamamoto@...inux.co.jp>,
	"Paul Menage" <menage@...gle.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, "Pavel Emelianov" <xemul@...nvz.org>,
	hugh@...itas.com,
	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [-mm] Disable the memory controller by default

>  The boot control options apply to all controllers and we want to allow
>  controllers to decide whether they should be turned on or off. With sufficient
>  documentation support in Documentation/kernel-parameters.txt, don't you think we
>  can expect this to work as the user intended?

2 parameter is wrong?

       cgroup_disable= [KNL] Disable a particular controller
                       Format: {name of the controller(s) to disable}
       cgroup_enable= [KNL] Enable a particular controller
                       Format: {name of the controller(s) to enable}

e.g.
user specified cgroup_enable=mem.
if default value is disable, it mean turn to enable.
if default value is enable,  it is meaningless param.
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