[RFC PATCH 0/3] mm/damon: move zero damos quota target_value handling to the core layer

[SJ Park <sj@kernel.org>]

Having zero DAMOS quota target value can cause division by zero.  DAMON
API callers are checking the target value parameters to avoid that.  It
is easy to make mistakes in some of the multiple API callers.  Move that
to the core layer.

Patch 1 adds the corner case handling into the core layer DAMON
parameters validation logic.  Patches 2 and 3 remove no more needed
DAMON API callers side handling of the corner case in DAMON_LRU_SORT and
DMON_SAMPLIE_MTIER, respectively.

SJ Park (3):
  mm/damon/core: error damos_commit_quota_goal() for zero target_value
  Revert "mm/damon/lru_sort: error out for >10000 active_mem_bp"
  Revert "samples/damon/mtier: error out for zero quota goal target
    values"

 mm/damon/core.c       | 22 ++++++++++++++++------
 mm/damon/lru_sort.c   |  2 --
 samples/damon/mtier.c |  3 ---
 3 files changed, 16 insertions(+), 11 deletions(-)


base-commit: bb9dee2c45b87e872d6b1d5f812ebafaa952b7c5
-- 
2.47.3