[PATCH v3 0/4] mm: Fix vmemmap optimization accounting and initialization

[Muchun Song]

The series fixes several bugs in vmemmap optimization, mainly about incorrect
page accounting when vmemmap optimization is enabled for DAX and memory
hotplug paths. Also fixes the pageblock migratetype initialization for
ZONE_DEVICE compound pages.

v2 -> v3:
- Drop patch 4 and patch 5 from v2 since the page table sync issue has
  already been fixed by Harry's series.
- [Patch 1]: Remove an unintentionally left line.
- [Patch 4 (previously Patch 6)]: Call cond_resched() every
  PAGES_PER_SECTION instead of every compound page, as suggested by
  Mike Rapoport.
- Collect Acked-by and Reviewed-by tags from Mike Rapoport.

Muchun Song (4):
  mm/sparse-vmemmap: Fix vmemmap accounting underflow
  mm/sparse-vmemmap: Pass @pgmap argument to memory deactivation paths
  mm/sparse-vmemmap: Fix DAX vmemmap accounting with optimization
  mm/mm_init: Fix pageblock migratetype for ZONE_DEVICE compound pages

 arch/arm64/mm/mmu.c            |  5 +--
 arch/loongarch/mm/init.c       |  5 +--
 arch/powerpc/mm/mem.c          |  5 +--
 arch/riscv/mm/init.c           |  5 +--
 arch/s390/mm/init.c            |  5 +--
 arch/x86/mm/init_64.c          |  5 +--
 include/linux/memory_hotplug.h |  8 +++--
 mm/memory_hotplug.c            | 12 +++----
 mm/memremap.c                  |  4 +--
 mm/mm_init.c                   | 43 +++++++++++++++---------
 mm/sparse-vmemmap.c            | 61 +++++++++++++++++++++++++---------
 11 files changed, 104 insertions(+), 54 deletions(-)

-- 
2.20.1