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Re: [RFC v2 1/3] migrate: new struct migration and add it to struct page

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  Re: [RFC v2 1/3] migrate: new struct migration and add it to struct  page Vlastimil Babka <vbabka@suse.cz> - 2015-10-15 11:30 +0200
    Re: [RFC v2 1/3] migrate: new struct migration and add it to struct  page Minchan Kim <minchan@kernel.org> - 2015-10-15 12:00 +0200

#1247608 — Re: [RFC v2 1/3] migrate: new struct migration and add it to struct page

On 10/15/2015 11:09 AM, Hui Zhu wrote:
> I got that add function interfaces is really not a good idea.
> So I add a new struct migration to put all migration interfaces and add
> this struct to struct page as union of "mapping".

That's better, but not as flexible as the previously proposed approaches 
that Sergey pointed you at:

  http://lkml.iu.edu/hypermail/linux/kernel/1507.0/03233.html
  http://lkml.iu.edu/hypermail/linux/kernel/1508.1/00696.html

There the operations are reachable via mapping, so we can support the 
special operations migration also when mapping is otherwise needed; your 
patch excludes mapping.

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#1247629

On Thu, Oct 15, 2015 at 11:27:15AM +0200, Vlastimil Babka wrote:
> On 10/15/2015 11:09 AM, Hui Zhu wrote:
> >I got that add function interfaces is really not a good idea.
> >So I add a new struct migration to put all migration interfaces and add
> >this struct to struct page as union of "mapping".
> 
> That's better, but not as flexible as the previously proposed
> approaches that Sergey pointed you at:
> 
>  http://lkml.iu.edu/hypermail/linux/kernel/1507.0/03233.html
>  http://lkml.iu.edu/hypermail/linux/kernel/1508.1/00696.html
> 
> There the operations are reachable via mapping, so we can support
> the special operations migration also when mapping is otherwise
> needed; your patch excludes mapping.
> 

Hello Hui,

FYI, I take over the work from Gioh and have a plan to improve the work.
So, Could you wait a bit? Of course, if you have better idea, feel free
to post it.

Thanks.
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