linux-kernel - Re: [PATCH] mm: Fix section mismatch in memcontrol.c

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Message-ID: <496D74CE.2070308@cn.fujitsu.com>
Date:	Wed, 14 Jan 2009 13:14:54 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Rakib Mullick <rakib.mullick@...il.com>,
	Linux-kernel Mailing List <linux-kernel@...r.kernel.org>,
	mingo@...e.hu, Balbir Singh <balbir@...ux.vnet.ibm.com>
Subject: Re: [PATCH] mm: Fix section mismatch in memcontrol.c

KAMEZAWA Hiroyuki wrote:
> On Wed, 14 Jan 2009 10:43:24 +0600
> "Rakib Mullick" <rakib.mullick@...il.com> wrote:
> 
>> Sure. You can carryout your other jobs. Here is the patch.
>> Thanks for your help guys.
>>
> Thank you. I confirmed this fixes mismatch.
> 
> Could you send this with your Signed-off-by, again ?
> 
> you got my Ack.
> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> 

No... This patch is still not correct..

It's mem_cgroup_create() but not enable_swap_cgroup() that needs
to be marked as __init_refok.

Here is the correct one:

===============

From: Li Zefan <lizf@...fujitsu.com>
Date: Wed, 14 Jan 2009 13:07:31 +0800
Subject: [PATCH] memcg: fix section mismatch

At system boot when creating the top cgroup, mem_cgroup_create() calls
enable_swap_cgroup() which is marked as __init, so mark mem_cgroup_create()
as __init_refok to avoid false section mismatch warning.

Reported-by: Rakib Mullick <rakib.mullick@...il.com>
Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 mm/memcontrol.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e2996b8..a2c929f 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2181,7 +2181,7 @@ static void __init enable_swap_cgroup(void)
 }
 #endif
 
-static struct cgroup_subsys_state *
+static struct cgroup_subsys_state * __init_refok
 mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont)
 {
 	struct mem_cgroup *mem, *parent;
-- 
1.5.4.rc3
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