On Mon, 9 May 2016 13:11:58 -0700 Andrew Morton <[email protected]> wrote:
> 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? err, make that 4.8-rc1. > Hopefully the other memory-hotplug developers will be able to find time > to review these.
