linux-kernel - Re: [PATCH] Fix declaration of cgroup_mm_owner

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Message-ID: <48D17917.5080700@cs.helsinki.fi>
Date:	Thu, 18 Sep 2008 00:39:35 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	balbir@...ux.vnet.ibm.com
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Menage <menage@...gle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix declaration of cgroup_mm_owner_callbacks

Balbir Singh wrote:
> Andrew Morton wrote:
>> On Mon, 15 Sep 2008 12:06:38 -0700 (PDT)
>> menage@...gle.com (Paul Menage) wrote:
>>
>>> Fix declaration of cgroup_mm_owner_callbacks()
>>>
>>> The choice of real/dummy declaration for cgroup_mm_owner_callbacks()
>>> shouldn't be based on CONFIG_MM_OWNER, but on
>>> CONFIG_CGROUPS. Otherwise kernel/exit.c fails to compile when
>>> something other than a cgroups controller selects CONFIG_MM_OWNER
>>>
>> Being too lazy to go back and find out what "something" is, I assumed
>> that this isn't needed in 2.6.27.
> 
> We don't have anything using CONFIG_MM_OWNER in 2.6.27, so we should be OK
> pushing this to 2.6.28 (Pekka plans to use it for revoke* calls).

Oh, I am already using it:

http://git.kernel.org/?p=linux/kernel/git/penberg/linux-2.6.git;a=commitdiff;h=3201a05704afafd7c61b204b7f0c2a9ddcf935d0

Still debugging some ext3 corruption problems, though :-)

> Pekka, Paul do you agree?

Yes, agreed.
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