[PATCH v4 0/2] mm/memory hotplug/unplug: Optimize zone contiguous check when changing pfn range

[Yuan Liu]

This series cleans up the overlap memory map init check and
optimizes zone contiguous check when changing pfn range.

In addition to providing a significant improvement for VM hotplug
(see the second patch for reference), it brings benefits for CXL
hotplug as well. The link is as follows
https://lore.kernel.org/all/20260409023552.GA2807@AE/

v3 link:
    https://lore.kernel.org/all/20260408031615.1831922-1-yuan1.liu@xxxxxxxxx/

v4 changes:
    Add a new patch for clean up overlap memory map init check

Yuan Liu (2):
  mm: move overlap memory map init check to memmap_init()
  mm/memory hotplug/unplug: Optimize zone contiguous check when changing
    pfn range

 Documentation/mm/physical_memory.rst | 13 +++++
 drivers/base/memory.c                |  6 ++
 include/linux/mmzone.h               | 47 ++++++++++++++++
 mm/internal.h                        |  8 +--
 mm/memory_hotplug.c                  | 12 +---
 mm/mm_init.c                         | 82 +++++++++++-----------------
 6 files changed, 100 insertions(+), 68 deletions(-)

-- 
2.47.3