[0/4] mm: Don't set and reset page count in MEMINIT_EARLY

Message

Yajun Deng Sept. 22, 2023, 7:09 a.m. UTC

__init_single_page would set page count and __free_pages_core would
reset it. A lot of pages don't need to do this when in MEMINIT_EARLY
context. It's unnecessary and time-consuming.

The first two patches are in preparation for the next two, they didn't
change anything.
The third patch only set page count for the reserved region, not all
of the region.
The fourth patch removes the set paget count in deferred_init_pages.

Yajun Deng (4):
  mm: pass set_count and set_reserved to __init_single_page
  mm: Introduce MEMINIT_LATE context
  mm: Set page count and mark page reserved in reserve_bootmem_region
  mm: don't set page count in deferred_init_pages

 include/linux/mmzone.h |  1 +
 mm/hugetlb.c           |  2 +-
 mm/internal.h          | 10 +++++---
 mm/kmsan/init.c        |  2 +-
 mm/memblock.c          |  4 +--
 mm/memory_hotplug.c    |  2 +-
 mm/mm_init.c           | 57 +++++++++++++++++++++++++-----------------
 mm/page_alloc.c        | 22 +++++++++-------
 8 files changed, 59 insertions(+), 41 deletions(-)