linux-kernel - Re: [-mm patch] mm/memcontrol.c: clenups

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Date:	Mon, 10 Sep 2007 13:53:19 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Adrian Bunk <bunk@...nel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [-mm patch] mm/memcontrol.c: clenups

Adrian Bunk wrote:
> On Fri, Aug 31, 2007 at 09:58:22PM -0700, Andrew Morton wrote:
>> ...
>> Changes since 2.6.23-rc3-mm1:
>> ...
>> +memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7.patch
>> ...
>>  memory containment
>> ...
> 
> This patch makes the following needlessly global functions static:
> - lock_page_container()
> - unlock_page_container()
> - __mem_container_move_lists()
> 
> Additionally, there was no reason for the "mem_control_type" object.
> 
> Signed-off-by: Adrian Bunk <bunk@...nel.org>
> 
> ---
> 
>  mm/memcontrol.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> b582cc510b6b0a182dc56025828e7a3c566b9724 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 8162d98..49bf04f 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -91,7 +91,7 @@ enum {
>  	MEM_CONTAINER_TYPE_CACHED,
>  	MEM_CONTAINER_TYPE_ALL,
>  	MEM_CONTAINER_TYPE_MAX,
> -} mem_control_type;
> +};
> 

Not sure about this, is this the preferred style?

>  static struct mem_container init_mem_container;
> 
> @@ -156,18 +156,18 @@ struct page_container *page_get_page_container(struct page *page)
>  		(page->page_container & ~PAGE_CONTAINER_LOCK);
>  }
> 
> -void __always_inline lock_page_container(struct page *page)
> +static void __always_inline lock_page_container(struct page *page)
>  {
>  	bit_spin_lock(PAGE_CONTAINER_LOCK_BIT, &page->page_container);
>  	VM_BUG_ON(!page_container_locked(page));
>  }
> 
> -void __always_inline unlock_page_container(struct page *page)
> +static void __always_inline unlock_page_container(struct page *page)
>  {
>  	bit_spin_unlock(PAGE_CONTAINER_LOCK_BIT, &page->page_container);
>  }
> 

These look good.

> -void __mem_container_move_lists(struct page_container *pc, bool active)
> +static void __mem_container_move_lists(struct page_container *pc, bool active)
>  {
>  	if (active)
>  		list_move(&pc->lru, &pc->mem_container->active_list);
> 

This looks good as well


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