Re: [PATCH 6/7] mm/page_alloc: store freelist migratetype to the page on buddy properly

[Michal Nazarewicz]

On Thu, Jan 09 2014, Joonsoo Kim wrote:
> To maintain freelist migratetype information on buddy pages, migratetype
> should be set again whenever the page order is changed. set_page_order()
> is the best place to do, because it is called whenever the page order is
> changed, so this patch adds set_buddy_migratetype() to set_page_order().
>
> And this patch makes set/get_buddy_migratetype() only enabled if it is
> really needed, because it has some overhead.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>

Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx>


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