linux-kernel - Re: [PATCH 2/2] mm/page_alloc: DEBUG_VM checks for free

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Message-ID: <5372E766.9040005@oracle.com>
Date:	Tue, 13 May 2014 23:47:50 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Vlastimil Babka <vbabka@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Mel Gorman <mgorman@...e.de>,
	Yong-Taek Lee <ytk.lee@...sung.com>,
	Minchan Kim <minchan@...nel.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Hugh Dickins <hughd@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	Michal Nazarewicz <mina86@...a86.com>,
	Dave Jones <davej@...hat.com>
Subject: Re: [PATCH 2/2] mm/page_alloc: DEBUG_VM checks for free_list placement
 of CMA and RESERVE pages

On 05/05/2014 11:50 AM, Vlastimil Babka wrote:
> So in the end this VM_DEBUG check probably cannot work anymore for MIGRATE_RESERVE, only for CMA. I'm not sure if it's worth keeping it only for CMA, what are the CMA guys' opinions on that?

The way I understood it is that this patch is wrong, but it's still
alive in -mm. Should it still be there?


Thanks,
Sasha
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