On Mon, May 13, 2019 at 2:02 PM Mike Rapoport rppt@linux.ibm.com wrote:
Hi Dan,
On Mon, May 06, 2019 at 04:39:26PM -0700, Dan Williams wrote:
Changes since v7 [1]:
Sorry for jumping late
No worries, it needs to be rebased on David's "mm/memory_hotplug: Factor out memory block device handling" series which puts it firmly in v5.3 territory.
but presuming there will be v9, it'd be great if it would also include include updates to Documentation/admin-guide/mm/memory-hotplug.rst and
If I've done my job right this series should be irrelevant to Documentation/admin-guide/mm/memory-hotplug.rst. The subsection capability is strictly limited to arch_add_memory() users that never online the memory, i.e. only ZONE_DEVICE / devm_memremap_pages() users. So this isn't "memory-hotplug" as much as it is "support for subsection vmemmap management".
Documentation/vm/memory-model.rst
This looks more fitting and should probably include a paragraph on the general ZONE_DEVICE / devm_memremap_pages() use case.