[PATCH v2 00/10] mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 2)

["David Hildenbrand (Arm)" <david@kernel.org>]

Let's remove the remaining pieces of CONFIG_HAVE_BOOTMEM_INFO_NODE,
performing some smaller cleanups around freeing of reserved vmemmap
pages on the way.

Tested on x86-64 with hugetlb vmemmap optimization in combination with
KMEMLEAK. Heavily cross-compiled.

Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
---
Changes in v2:
- In patch #2, reverse the order of setting the page count and clearing
  PG_reserved, and modify the patch description accordingly.
- Link to v1: https://patch.msgid.link/20260708-bootmem_info_part2-v1-0-156ce4986598@kernel.org

---

David Hildenbrand (Arm) (10):
      x86/mm: drop order parameter from free_pagetable()
      mm: provide free_reserved_pages(), removing x86 variant
      s390/mm: use free_reserved_pages() in vmem_free_pages()
      mm/bootmem_info: allow calling free_bootmem_page() on pages without a bootmem_type
      x86/mm: stop marking vmemmap as SECTION_INFO
      x86/mm: stop marking page tables as MIX_SECTION_INFO
      x86/mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE
      mm/hugetlb_vmemmap: remove bootmem_info leftovers
      mm/sparse: remove bootmem_info.h include
      mm/bootmem_info: remove CONFIG_HAVE_BOOTMEM_INFO_NODE

 MAINTAINERS                  |   1 -
 arch/s390/mm/vmem.c          |   4 +-
 arch/x86/mm/init_64.c        | 134 ++++---------------------------------------
 include/linux/bootmem_info.h |  89 ----------------------------
 include/linux/mm.h           |   8 ++-
 mm/Kconfig                   |   8 ---
 mm/Makefile                  |   1 -
 mm/bootmem_info.c            |  72 -----------------------
 mm/hugetlb_vmemmap.c         |   8 +--
 mm/page_alloc.c              |  33 ++++++++---
 mm/sparse.c                  |   1 -
 11 files changed, 46 insertions(+), 313 deletions(-)

---

base-commit: d11ba1f570615ec8d4814d6313ee1d7075a33787

change-id: 20260428-bootmem_info_part2-4bbb445d9b3d

--

Cheers,

David