linux-kernel - Re: [PATCH] mm/compaction: remove local variable is

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Message-ID: <fbcd77c3-b192-3415-8417-6c8b07ce2146@suse.cz>
Date:	Fri, 17 Jun 2016 14:50:12 +0200
From:	Vlastimil Babka <vbabka@...e.cz>
To:	Michal Hocko <mhocko@...nel.org>,
	Ganesh Mahendran <opensource.ganesh@...il.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, iamjoonsoo.kim@....com,
	hillf.zj@...baba-inc.com, minchan@...nel.org
Subject: Re: [PATCH] mm/compaction: remove local variable is_lru

On 06/17/2016 11:50 AM, Michal Hocko wrote:
> On Fri 17-06-16 17:32:51, Ganesh Mahendran wrote:
>> local varialbe is_lru was used for tracking non-lru pages(such as
>> balloon pages).
>>
>> But commit
>> 112ea7b668d3 ("mm: migrate: support non-lru movable page migration")
>
> this commit sha is not stable because it is from the linux-next tree.
>
>> introduced a common framework for non-lru page migration and moved
>> the compound pages check before non-lru movable pages check.
>>
>> So there is no need to use local variable is_lru.
>>
>> Signed-off-by: Ganesh Mahendran <opensource.ganesh@...il.com>
>
> Other than that the patch looks ok and maybe it would be worth folding
> into the mm-migrate-support-non-lru-movable-page-migration.patch

Agreed.