linux-kernel - Re: [PATCH 3/4] mm/migrate: remove putback_lru_pages, fix comment on putback_movable

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Date:	Fri, 6 Dec 2013 20:46:43 +0900
From:	Joonsoo Kim <js1304@...il.com>
To:	Zhang Yanfei <zhangyanfei@...fujitsu.com>
Cc:	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	Rafael Aquini <aquini@...hat.com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Christoph Lameter <cl@...ux.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: [PATCH 3/4] mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pages

2013/12/6 Zhang Yanfei <zhangyanfei@...fujitsu.com>:
> Hello
>
> On 12/06/2013 04:41 PM, Joonsoo Kim wrote:
>> Some part of putback_lru_pages() and putback_movable_pages() is
>> duplicated, so it could confuse us what we should use.
>> We can remove putback_lru_pages() since it is not really needed now.
>> This makes us undestand and maintain the code more easily.
>>
>> And comment on putback_movable_pages() is stale now, so fix it.
>>
>> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>
>>
>> diff --git a/include/linux/migrate.h b/include/linux/migrate.h
>> index f5096b5..7782b74 100644
>> --- a/include/linux/migrate.h
>> +++ b/include/linux/migrate.h
>> @@ -35,7 +35,6 @@ enum migrate_reason {
>>
>>  #ifdef CONFIG_MIGRATION
>>
>> -extern void putback_lru_pages(struct list_head *l);
>>  extern void putback_movable_pages(struct list_head *l);
>>  extern int migrate_page(struct address_space *,
>>                       struct page *, struct page *, enum migrate_mode);
>> @@ -59,7 +58,6 @@ extern int migrate_page_move_mapping(struct address_space *mapping,
>>  #else
>>
>>  static inline void putback_lru_pages(struct list_head *l) {}
>
> If you want to remove the function, this should be removed, right?

Hello, Zhang.

Oop... It's my mistake. I will send v2.
Thanks for finding this.

Thanks.
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