Re: [RFC 0/3] Pin page control subsystem

[Krzysztof Kozlowski]

Hi Minchan,

On wto, 2013-08-13 at 16:04 +0900, Minchan Kim wrote:
> patch 2 introduce pinpage control
> subsystem. So, subsystems want to control pinpage should implement own
> pinpage_xxx functions because each subsystem would have other character
> so what kinds of data structure for managing pinpage information depends
> on them. Otherwise, they can use general functions defined in pinpage
> subsystem. patch 3 hacks migration.c so that migration is
> aware of pinpage now and migrate them with pinpage subsystem.

I wonder why don't we use page->mapping and a_ops? Is there any
disadvantage of such mapping/a_ops?

Best regards,
Krzysztof

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