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

v3:
 - Rebase on top of my similar patch to add pfn_swap_entry_folio()
 - Various wordsmithing & notes about where we're actually saving
   calls to compound_head().

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 (7):
  s390: use pfn_swap_entry_folio() in ptep_zap_swap_entry()
  mm: use pfn_swap_entry_folio() in __split_huge_pmd_locked()
  mm: use pfn_swap_entry_to_folio() in zap_huge_pmd()
  mm: use pfn_swap_entry_folio() in copy_nonpresent_pte()
  mm: Convert to should_zap_page() to should_zap_folio()
  mm: convert mm_counter() to take a folio
  mm: convert mm_counter_file() to take a folio

Matthew Wilcox (Oracle) (3):
  mm: Add pfn_swap_entry_folio()
  proc: Use pfn_swap_entry_folio where obvious
  mprotect: Use pfn_swap_entry_folio

 arch/s390/mm/pgtable.c  |  4 ++--
 fs/proc/task_mmu.c      |  4 ++--
 include/linux/mm.h      | 12 +++++-----
 include/linux/swapops.h | 13 +++++++++++
 kernel/events/uprobes.c |  2 +-
 mm/filemap.c            |  2 +-
 mm/huge_memory.c        | 23 ++++++++++---------
 mm/khugepaged.c         |  4 ++--
 mm/memory.c             | 49 ++++++++++++++++++++++-------------------
 mm/mprotect.c           |  4 ++--
 mm/rmap.c               | 10 ++++-----
 mm/userfaultfd.c        |  2 +-
 12 files changed, 74 insertions(+), 55 deletions(-)

-- 
2.43.0