Here is the 4th version of hugepage migration patchset.
I added Reviewed/Acked tags and applied the feedbacks in the previous discussion
(thank you, all reviewers!):
- fixed macro (1/8)
- improved comment and readability (1/8, 3/8, 4/8, 7/8)
- improved node choice in allocating destination hugepage (7/8)
TODOs: (likely to be done after this work)
- split page table lock for pmd/pud based hugepage (maybe applicable to thp)
- improve alloc_migrate_target (especially in node choice)
- using page walker in check_range
I hope that this series is becoming ready to be merge to -mm tree.
Andrew, could you review and judge this?
Thanks,
Naoya Horiguchi
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GitHub:
git://github.com/Naoya-Horiguchi/linux.git extend_hugepage_migration.v4
Test code:
git://github.com/Naoya-Horiguchi/test_hugepage_migration_extension.git
Naoya Horiguchi (8):
migrate: make core migration code aware of hugepage
soft-offline: use migrate_pages() instead of migrate_huge_page()
migrate: add hugepage migration code to migrate_pages()
migrate: add hugepage migration code to move_pages()
mbind: add hugepage migration code to mbind()
migrate: remove VM_HUGETLB from vma flag check in vma_migratable()
memory-hotplug: enable memory hotplug to handle hugepage
prepare to remove /proc/sys/vm/hugepages_treat_as_movable
Documentation/sysctl/vm.txt | 13 +----
include/linux/hugetlb.h | 15 +++++
include/linux/mempolicy.h | 2 +-
include/linux/migrate.h | 5 --
mm/hugetlb.c | 134 +++++++++++++++++++++++++++++++++++++++-----
mm/memory-failure.c | 15 ++++-
mm/memory.c | 17 +++++-
mm/memory_hotplug.c | 42 +++++++++++---
mm/mempolicy.c | 46 +++++++++++++--
mm/migrate.c | 51 ++++++++---------
mm/page_alloc.c | 12 ++++
mm/page_isolation.c | 14 +++++
12 files changed, 288 insertions(+), 78 deletions(-)
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