| From | Balbir Singh <> | Date | Fri, 13 Jan 2017 19:27:41 +0530 | Subject | Re: [HMM v16 01/15] mm/memory/hotplug: convert device bool to int to allow for more flags v2 |
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On Thu, Jan 12, 2017 at 11:30:28AM -0500, Jérôme Glisse wrote: > When hotpluging memory we want more informations on the type of memory and > its properties. Replace the device boolean flag by an int and define a set > of flags. > > New property for device memory is an opt-in flag to allow page migration > from and to a ZONE_DEVICE. Existing user of ZONE_DEVICE are not expecting > page migration to work for their pages. New changes to page migration i > changing that and we now need a flag to explicitly opt-in page migration.
Given that ZONE_DEVICE is dependent on X86_64, do we need to touch all architectures? I guess we could selectively enable things as we enable ZONE_DEVICE for other architectures?
Balbir Singh.
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