[PATCHv3,00/11] Get rid of PG_reclaim and rename PG_dropbehind

Message

Kirill A. Shutemov Jan. 30, 2025, 10 a.m. UTC

Use PG_dropbehind instead of PG_reclaim and remove PG_reclaim.

After removing PG_relcaim, PG_readahead is exclusive user of the page
flag bit.

Once PG_reclaim is gone, we can rename PG_dropbehind to PG_reclaim.

v3:
  - Condition folio_set_dropbehind() call in mapping_try_invalidate() on
    !unevictable and !mapped;
  - Add Reviewed-by tag by Yu Zhao;

Kirill A. Shutemov (11):
  mm/migrate: Transfer PG_dropbehind to the new folio
  drm/i915/gem: Convert __shmem_writeback() to folios
  drm/i915/gem: Use PG_dropbehind instead of PG_reclaim
  mm/zswap: Use PG_dropbehind instead of PG_reclaim
  mm/truncate: Use folio_set_dropbehind() instead of
    deactivate_file_folio()
  mm/vmscan: Use PG_dropbehind instead of PG_reclaim
  mm/vmscan: Use PG_dropbehind instead of PG_reclaim in
    shrink_folio_list()
  mm/mglru: Check PG_dropbehind instead of PG_reclaim in
    lru_gen_folio_seq()
  mm: Remove PG_reclaim
  mm/vmscan: Do not demote PG_dropbehind folios
  mm: Rename PG_dropbehind to PG_reclaim

 drivers/gpu/drm/i915/gem/i915_gem_shmem.c |  18 ++-
 fs/fuse/dev.c                             |   2 +-
 fs/proc/page.c                            |   2 +-
 include/linux/mm_inline.h                 |  18 +--
 include/linux/page-flags.h                |  23 ++--
 include/linux/pagemap.h                   |   2 +-
 include/trace/events/mmflags.h            |   4 +-
 include/uapi/linux/kernel-page-flags.h    |   2 +-
 mm/filemap.c                              |  46 +++----
 mm/internal.h                             |   1 -
 mm/migrate.c                              |  14 +-
 mm/page-writeback.c                       |  16 +--
 mm/page_io.c                              |  15 +--
 mm/readahead.c                            |   4 +-
 mm/swap.c                                 | 153 +---------------------
 mm/truncate.c                             |   5 +-
 mm/vmscan.c                               |  28 +---
 mm/zswap.c                                |   2 +-
 tools/mm/page-types.c                     |   8 +-
 19 files changed, 68 insertions(+), 295 deletions(-)