On Mon, 9 May 2016 12:53:36 -0500 Reza Arbab <[email protected]> wrote:
> While it is currently possible to rezone memory when it is onlined, there are > implicit assumptions about the zones: > > * To "online_kernel" a block into ZONE_NORMAL, it must currently > be in ZONE_MOVABLE. > > * To "online_movable" a block into ZONE_MOVABLE, it must currently > be in (ZONE_MOVABLE - 1). > > So on powerpc, where new memory is hotplugged into ZONE_DMA, these operations > do not work. > > This patchset replaces the qualifications above with a more general > validation of zone movement. > The patches look good from a first scan. It's late for 4.6 so I'll queue them for 4.7-rc1, unless there are convincing reasons otherwise? Hopefully the other memory-hotplug developers will be able to find time to review these.
