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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