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RFC mm/damon: avoid division by zero from damos_quota_score()

SJ Park damon linux-mm lkml stable 2 versions – In review

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  1. v2 RFC Latest2 patches 2 repliesIn review
  2. v1 RFC1 patch 1 replySuperseded

Patches in v2 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2samples/damon/mtier: error out for zero quota goal target valuessamples/damon/mtier.c+3 -01 reply
2/2mm/damon/lru_sort: error out for >10000 active_mem_bpmm/damon/lru_sort.c+2 -01 reply

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Cover letter [RFC PATCH v2 0/2] mm/damon: avoid division by zero from damos_quota_score()

DAMON_SAMPLE_MTIER and DAMON_LRU_SORT allow the user to trigger division by zero in damos_quota_score(). Avoid it by adding parameters validation checks.

Changes from RFC
- RFC: https://lore.kernel.org/[email protected]
- Add a fix for DAMON_LRU_SORT.

SJ Park (2):
samples/damon/mtier: error out for zero quota goal target values mm/damon/lru_sort: error out for >10000 active_mem_bp

 mm/damon/lru_sort.c   | 2 ++
 samples/damon/mtier.c | 3 +++
 2 files changed, 5 insertions(+)

base-commit: 51d61cb34d137b13957ce83455c1f596d39e8cfe

Signature · 1 line
2.47.3

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