linux-kernel - Re: [PATCH] CMA: use MIGRATE_SYNC in alloc_contig

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Message-ID: <alpine.DEB.2.02.1405291229330.28183@chino.kir.corp.google.com>
Date:	Thu, 29 May 2014 12:32:18 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
cc:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Michal Nazarewicz <mina86@...a86.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: Re: [PATCH] CMA: use MIGRATE_SYNC in alloc_contig_range()

On Thu, 29 May 2014, Joonsoo Kim wrote:

> Before commit 'mm, compaction: embed migration mode in compact_control'
> from David is merged, alloc_contig_range() used sync migration,
> instead of sync_light migration. This doesn't break anything currently
> because page isolation doesn't have any difference with sync and
> sync_light, but it could in the future, so change back as it was.
> 
> And pass cc->mode to migrate_pages(), instead of passing MIGRATE_SYNC
> to migrate_pages().
> 
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>

Acked-by: David Rientjes <rientjes@...gle.com>

Should probably be renamed 
mm-compaction-embed-migration-mode-in-compact_control-fix-fix though since 
it's based on another patch in -mm that properly does the s/sync/mode/ 
conversion for CMA.
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