linux-kernel - Re: [PATCH 1/5] The config option itself

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Date:	Wed, 31 Oct 2007 20:34:52 +0300
From:	Pavel Emelyanov <xemul@...nvz.org>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	Andrew Morton <akpm@...l.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Cedric Le Goater <clg@...ibm.com>,
	Serge Hallyn <serue@...ibm.com>,
	Linux Containers <containers@...ts.osdl.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/5] The config option itself

Randy Dunlap wrote:
> On Wed, 31 Oct 2007 14:05:01 +0300 Pavel Emelyanov wrote:
> 
>> The option is called NAMESPACES. It can be selectable only
>> if EMBEDDED is chosen (this was Eric's requisition). When
>> the EMBEDDED is off namespaces will be on automatically.
>> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>
> 
> 
> and when EMBEDDED is on, it looks like NAMESPACES will be off
> automatically (but user-changeable)?  Is that intended?

Yes. The namespaces are likely not needed on cell-phones or similar,
but if the user does want them - he may turn them on.

This was one of Eric's wishes to give only the embedded people the
choice.

> 
>> ---
>>
>> diff --git a/init/Kconfig b/init/Kconfig
>> index c3de3ed..fc76773 100644
>> --- a/init/Kconfig
>> +++ b/init/Kconfig
>> @@ -400,6 +400,15 @@ config RELAY
>>  
>>  	  If unsure, say N.
>>  
>> +config NAMESPACES
>> +	bool "Namespaces support" if EMBEDDED
>> +	default !EMBEDDED
>> +	help
>> +	  Provides the way to make tasks work with different objects using
>> +	  the same id. For example same IPC id may refer to different objects
>> +	  or same user id or pid may refer to different tasks when used in
>> +	  different namespaces.
>> +
>>  config BLK_DEV_INITRD
>>  	bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
>>  	depends on BROKEN || !FRV
> 
> 
> ---
> ~Randy
> 

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