[PATCH RFC] mm/memory_hotplug: Introduce memory block types

Michal Suchánek msuchanek at suse.de
Fri Oct 5 01:28:07 AEST 2018


On Thu, 4 Oct 2018 10:13:48 +0200
David Hildenbrand <david at redhat.com> wrote:

ok, so what is the problem here?

Handling the hotplug in userspace through udev may be suboptimal and
kernel handling might be faster but that's orthogonal to the problem at
hand.

The state of the art is to determine what to do with hotplugged memory
in userspace based on platform and virtualization type.

Changing the default to depend on the driver that added the memory
rather than platform type should solve the issue of VMs growing
different types of memory device emulation.

Am I missing something?

Thanks

Michal


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