[RFC PATCH v2 0/6] mm/damon: misc improvements/cleanups for core, vaddr, sysfs and tests

[SJ Park <sj@kernel.org>]

Refactor code, optimize code speed, and add missing feature supports on
various areas of DAMON.

Optimize the efficiency of vaddr damos_migrate action under filter
failures with patch 1.  Use damos->last_applied on damos_migrate action
in vaddr and support sz_filter_passed for damos_migrate action in vaddr,
respectively with patch 2 and 3.  Drop a redundant and racy quota goal
target value validation in sysfs, in favor of that in the core layer,
with patch 4.  Drop unused variables and imports from selftests with
patch 5 and 6.

Changes from RFC
- RFC: https://lore.kernel.org/20261031202614.96036-1-sj@kernel.org
- Drop charge_target_from fixup consolidation.
- Add a patch for using last_applied on vaddr migrate action.
- Add missed damos_va_migrate_private->sz_filter_passed setup.
- Fix wrong commit message for unused imports removal.

SJ Park (6):
  mm/damon/vaddr: advance migration attempt in folio level for filter
    out
  mm/damon/vaddr: use damos->last_applied for migrate action
  mm/damon/vaddr: implement sz_filter_passed for migrate_{hot,cold}
    action
  mm/damon/sysfs-schemes: drop redundant and racy zero target_value
    check
  selftests/damon/damos_apply_interval: remove unused variables
  selftests/damon: remove unused imports of os and sys modules

 mm/damon/sysfs-schemes.c                      |  3 --
 mm/damon/vaddr.c                              | 28 +++++++++++--------
 .../selftests/damon/damos_apply_interval.py   |  2 --
 .../damon/sysfs_no_op_commit_break.py         |  1 -
 ...sysfs_update_schemes_tried_regions_hang.py |  1 -
 5 files changed, 17 insertions(+), 18 deletions(-)


base-commit: 807c0ce92f8424fbb7eb13e7ea48746f68b24dca
-- 
2.47.3