Re: turn hmm migrate_vma upside down v3

[Christoph Hellwig]

Jason,

are you going to look into picking this up?  Unfortunately there is
a hole pile in this area still pending, including the kvmppc secure
memory driver from Bharata that depends on the work.

mm folks:  migrate.c is mostly a classic MM file except for the hmm
additions.  Do you want to also look over this or just let it pass?