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

[Balbir Singh <balbir@linux.vnet.ibm.com>]

KOSAKI Motohiro wrote:
>>  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}
> 

No, it is not all bad. That can be done, but we need to guard against a usage like

cgroup_disable=memory cgroup_enable=memory

The user will probably get what he/she deserves for it.

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL