[00/10] Simplify the page flags a little

Message

Matthew Wilcox Aug. 21, 2024, 7:34 p.m. UTC

In the course of our folio conversions, we have made many page flags
only used on folios, so we can now remove the page-based accessors.
This should cut down compile time a little, and prevent new users from
cropping up.

There is more that could be done in this area, but it would produce
merge conflicts, so I'll sit on those patches until next merge window.
We now have line of sight to removing PG_private_2 and PG_private.

Matthew Wilcox (Oracle) (10):
  mm: Remove PageActive
  mm: Remove PageSwapBacked
  mm: Remove PageReadahead
  mm: Remove PageSwapCache
  mm: Remove PageUnevictable
  mm: Remove PageMlocked
  mm: Remove PageOwnerPriv1
  mm: Remove page_has_private()
  mm: Rename PG_mappedtodisk to PG_owner_2
  x86: Remove PG_uncached

 .../features/vm/PG_uncached/arch-support.txt  | 30 ------
 Documentation/mm/unevictable-lru.rst          |  4 +-
 arch/arm64/Kconfig                            |  3 +-
 arch/x86/Kconfig                              |  5 +-
 arch/x86/mm/pat/memtype.c                     |  8 +-
 fs/proc/page.c                                | 10 +-
 include/linux/kernel-page-flags.h             |  3 +-
 include/linux/mm_types.h                      |  2 +-
 include/linux/page-flags.h                    | 99 +++++++++----------
 include/trace/events/mmflags.h                | 25 +++--
 mm/Kconfig                                    |  9 +-
 mm/huge_memory.c                              | 20 ++--
 mm/ksm.c                                      | 19 ++--
 mm/migrate.c                                  |  3 +-
 mm/shmem.c                                    | 11 ++-
 tools/mm/page-types.c                         | 13 ++-
 16 files changed, 111 insertions(+), 153 deletions(-)
 delete mode 100644 Documentation/features/vm/PG_uncached/arch-support.txt