[v2,0/8] mm: convert mm counter to take a folio

Message

Kefeng Wang Jan. 11, 2024, 11:12 a.m. UTC

Make all mm_counter() and mm_counter_file() callers to use a folio,
then convert mm counter functions to take a folio, which saves some
of compound_head() calls.

v2:
- rebase on v6.7, since most of mm counter callers already with a folio,
  drop some unneeded changes.

v1:
- rename should_zap_page() to should_zap_folio(), per Matthew Wilcox 
- pass page to page_remove_rmap/page_try_dup_anon_rmap for
  device private page, per Matthew Wilcox

Kefeng Wang (8):
  mm: swap: introduce pfn_swap_entry_to_folio()
  s390: pgtable: use pfn_swap_entry_to_folio() in ptep_zap_swap_entry()
  mm: huge_memory: use pfn_swap_entry_to_folio() in
    __split_huge_pmd_locked()
  mm: huge_memory: use pfn_swap_entry_to_folio() in zap_huge_pmd()
  mm: memory: use pfn_swap_entry_to_folio() in copy_nonpresent_pte()
  mm: memory: convert to should_zap_folio()
  mm: convert mm_counter() to take a folio
  mm: convert mm_counter_file() to take a folio

 arch/s390/mm/pgtable.c  |  4 ++--
 include/linux/mm.h      | 12 +++++-----
 include/linux/swapops.h | 13 +++++++++++
 kernel/events/uprobes.c |  2 +-
 mm/huge_memory.c        | 21 ++++++++++--------
 mm/khugepaged.c         |  4 ++--
 mm/memory.c             | 49 ++++++++++++++++++++++-------------------
 mm/rmap.c               | 10 ++++-----
 mm/userfaultfd.c        |  2 +-
 9 files changed, 68 insertions(+), 49 deletions(-)