On Thu, Mar 16, 2017 at 12:05:20PM -0400, J?r?me 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. > > Changes since v2: > - pr_err() in case of hotplug failure > > Changes since v1: > - Improved commit message > - Improved define name > - Improved comments > - Typos > > Signed-off-by: Jérôme Glisse <jgli...@redhat.com>
Fairly minor but it's standard for flags to be unsigned due to uncertainity about what happens when a signed type is bit shifted. May not apply to your case but fairly trivial to address.
