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Commit e83a437faa62 ("mm/memory_hotplug: introduce "auto-movable" online
policy") introduced a new memory online policy to automatically select a
zone for memory blocks to be onlined. It added a way to set the active
online policy and tunables for the auto-movable online policy.
Follow-up commits tweaked the "auto-movable" policy to also consider
memory device details when selecting zones for memory blocks to be
onlined.
Let's document the new toggles and how the two online policies we have
work.
[david@redhat.com: updates]
Link: https://lkml.kernel.org/r/20211011082058.6076-4-david@redhat.com
Link: https://lkml.kernel.org/r/20210930144117.23641-4-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9e122cc1bd
