mm/damon: misc cleanups

Yet another batch of misc cleanups and refactoring for DAMON code, tests, and documents.

First two patches (1and 2) rename DAMOS core filters related code for readability.

Three following patches (3-5) refactor page table walk callback functions in DAMON, as suggested by Hugh and David, and I promised.

Next two patches (6 and 7) refactor DAMON core layer kunit test and sysfs interface selftest to be simple and deduplicated.

Final two patches (8 and 9) fix up sphinx and grammatical errors on documents.

SeongJae Park (9):
mm/damon: rename damos core filter helpers to have word core mm/damon: rename damos->filters to damos->core_filters mm/damon/vaddr: cleanup using pmd_trans_huge_lock() mm/damon/vaddr: use vm_normal_folio{,_pmd}() instead of
damon_get_folio()
mm/damon/vaddr: consistently use only pmd_entry for damos_migrate mm/damon/tests/core-kunit: remove DAMON_MIN_REGION redefinition selftests/damon/sysfs.py: merge DAMON status dumping into commitment
assertion
Docs/mm/damon/maintainer-profile: fix a typo on mm-untable link Docs/mm/damon/maintainer-profile: fix grammartical errors

 .clang-format                                 |   4 +-
 Documentation/mm/damon/maintainer-profile.rst |  10 +-
 include/linux/damon.h                         |  14 +-
 mm/damon/core.c                               |  25 ++-
 mm/damon/tests/core-kunit.h                   |  59 ++++----
 mm/damon/vaddr.c                              | 143 +++++++-----------
 .../selftests/damon/drgn_dump_damon_status.py |   8 +-
 tools/testing/selftests/damon/sysfs.py        |  45 ++----
 8 files changed, 121 insertions(+), 187 deletions(-)

base-commit: 4e9ec347bc14de636aec3014dee3b5d279ca33bf

2.47.3