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Subject[RFC PATCH 0/2] mm, memory_hotplug: remove zone onlining restriction
Date
Hi,
I am sending this as an RFC because this hasn't seen a lot of testing
yet but I would like to see whether the semantic I came up with (see
patch 2) is sensible. This work should help Joonsoo with his CMA zone
based approach when reusing MOVABLE zone. I think it will also help to
remove more code from the memory hotplug (e.g. zone shrinking).

Patch 1 restores original memoryXY/valid_zones semantic wrt zone
ordering. This can be merged without patch 2 which removes the zone
overlap restriction and defines a semantic for the default onlining. See
more in the patch.

Questions, concerns, objections?

Shortlog
Michal Hocko (2):
mm, memory_hotplug: display allowed zones in the preferred ordering
mm, memory_hotplug: remove zone restrictions

Diffstat
drivers/base/memory.c | 30 ++++++++++-----
include/linux/memory_hotplug.h | 2 +-
mm/memory_hotplug.c | 87 +++++++++++++++++-------------------------
3 files changed, 55 insertions(+), 64 deletions(-)

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