damon · Maintained

Maintainers

• M SJ Park <sj@kernel.org>

Paths

• F Documentation/ABI/testing/sysfs-kernel-mm-damon
• F Documentation/admin-guide/mm/damon/
• F Documentation/mm/damon/
• F include/linux/damon.h
• F include/trace/events/damon.h
• F mm/damon/
• F samples/damon/
• F tools/testing/selftests/damon/

Last 30 days

Most active threads (last 7 days)

• HOTtoday [RFC PATCH v2 0/9] mm/damon: hardware-sampled access reports
  2026-09-10 17:16 · 9 replies in 7d · Ravi Jonnalagadda <hidden>
• HOTtoday [PATCH 0/7] mm/damon: introduce probe_hits_wsum DAMOS core filter
  2026-09-10 14:19 · 7 replies in 7d · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v2.1 0/7] mm/damon: introduce probe_hits_wsum DAMOS core filter
  2026-09-10 04:03 · 7 replies in 7d · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 0/5] mm/damon: introduce pgidle_set probe filter type
  2026-09-10 14:22 · 5 replies in 7d · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v1.1 0/5] mm/damon: introduce pgidle_set probe filter type
  2026-09-10 04:09 · 5 replies in 7d · SJ Park <sj@kernel.org>
• WARM1d [PATCH REPOST 0/5] mm/damon/vaddr: support {prep,apply}_probes
  2026-09-09 14:26 · 6 replies in 7d · SJ Park <sj@kernel.org>
• HOTtoday [PATCH v2] mm/damon/core: reset invalid quota->charge_target_from
  2026-09-10 14:28 · 0 replies in 7d · SJ Park <sj@kernel.org>
• WARM3d [RFC PATCH v2 0/7] mm/damon: introduce probe_hits_wsum DAMOS core filter
  2026-09-07 17:12 · 7 replies in 7d · SJ Park <sj@kernel.org>
• HOTtoday [PATCH] Docs/mm/damon/design: clarify when qt_exceeds increases
  2026-09-10 11:22 · 0 replies in 7d · Liew Rui Yan <hidden>
• WARM2d IN LINUX-NEXT [PATCH v3 0/3] mm/damon: support access monitoring of hugetlb-backed memory
  2026-09-08 13:52 · 3 replies in 7d · SJ Park <sj@kernel.org>

Active reviewers (last 30 days)

• SJ Park <sj@kernel.org>
  27 attestations (27 Reviewed-by) · last on 2026-09-08
• Lian Wang <hidden>
  7 attestations (6 Co-developed-by, 1 Reviewed-by) · last on 2026-09-09
• Kunwu Chan <hidden>
  5 attestations (5 Co-developed-by) · last on 2026-08-18
• Akinobu Mita <akinobu.mita@gmail.com>
  3 attestations (3 Co-developed-by) · last on 2026-09-10
• Baolin Wang <baolin.wang@linux.alibaba.com>
  1 attestation (1 Reviewed-by) · last on 2026-09-04

Recent patches

Most-recent 30 patches in this subsystem on linux-mm (capped at 30), ordered by date desc.

• DORMANTno replies [RFC PATCH v2 9/9] mm/damon/tests/drain-kunit: kunit for report rings and unified drain
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 8/9] mm/damon: add perf_event prep for PMU-driven hotness probes
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 7/9] mm/damon/ops-common: use probe-weighted score when probe weights are set
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 6/9] mm/damon: add perf-event overflow handler feeding the report ring
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 5/9] mm/damon/core: add per-probe-class report rings and unified drain
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 4/9] mm/damon: add damos_node_eligible_mem_bp tracepoint
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 2/9] mm/damon/core: read the CPU number with preemption disabled
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 3/9] mm/damon/paddr: lock the folio for the page fault primitive rmap walk
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [RFC PATCH v2 1/9] mm/damon/vaddr: support page fault access check primitive
  2026-09-10 · Ravi Jonnalagadda <hidden>
• HOTtoday [PATCH v2] mm/damon/core: reset invalid quota->charge_target_from
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 5/5] Docs/mm/damon/design: update for pgidle_set probe filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 3/5] mm/damon/vaddr: support DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 4/5] mm/damon/sysfs: support DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 1/5] mm/damon/api: introduce DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 2/5] mm/damon/paddr: support DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 7/7] Docs/admin-guide/mm/damon/usage: update for probe_hits_wsum DAMOS filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 5/7] mm/damon/sysfs-schemes: support probe_hits_wsum damos core filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 6/7] Docs/mm/damon/design: update for probe_hits_wsum DAMOS core filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 2/7] mm/damon/core: extend probe_hits_wsum() for moving sum based calculation
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 3/7] mm/damon/core: support probe_hits_wsum damos core filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 4/7] mm/damon/sysfs-schemes: rename sysfs_filter->sz_range to range_{min,max}
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH 1/7] mm/damon/api: introduce DAMOS_FILTER_TYPE_PROBE_HITS_WSUM
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [PATCH] Docs/mm/damon/design: clarify when qt_exceeds increases
  2026-09-10 · Liew Rui Yan <hidden>
• HOTtoday [RFC PATCH v1.1 5/5] Docs/mm/damon/design: update for pgidle_set probe filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v1.1 2/5] mm/damon/paddr: support DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v1.1 3/5] mm/damon/vaddr: support DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v1.1 4/5] mm/damon/sysfs: support DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v1.1 1/5] mm/damon/api: introduce DAMON_FILTER_TYPE_PGIDLE_SET
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v2.1 7/7] Docs/admin-guide/mm/damon/usage: update for probe_hits_wsum DAMOS filter
  2026-09-10 · SJ Park <sj@kernel.org>
• HOTtoday [RFC PATCH v2.1 5/7] mm/damon/sysfs-schemes: support probe_hits_wsum damos core filter
  2026-09-10 · SJ Park <sj@kernel.org>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2] Docs/mm/damon: document exclusivity of special-purpose modules
  2026-03-15 · SeongJae Park <sj@kernel.org> · 1 Reviewed-by
• STALE176d REVIEWED: 1 (1M) [RFC PATCH v2 1/1] mm/damon: support MADV_COLLAPSE via DAMOS_COLLAPSE scheme action
  2026-03-16 · <hidden> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2] Docs/mm/damon/design: document DAMON actions when TRANSPARENT_HUGEPAGE is off
  2026-03-18 · SeongJae Park <sj@kernel.org> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 1 (1M) [PATCH v2] mm/damon/core: document damos_commit_dests() failure semantics
  2026-03-20 · SeongJae Park <sj@kernel.org> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (1M) [PATCH v2] mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
  2026-03-20 · Josh Law <hidden> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (1M) [PATCH v2] mm/damon/sysfs: check contexts->nr before accessing contexts_arr[0]
  2026-03-20 · Josh Law <hidden> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (1M) [PATCH v2] mm/damon/sysfs: check contexts->nr in repeat_call_fn
  2026-03-20 · Josh Law <hidden> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (1M) [PATCH v2 2/3] mm/damon/sysfs: check contexts->nr before accessing contexts_arr[0]
  2026-03-20 · Josh Law <hidden> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (1M) [PATCH v2 1/3] mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
  2026-03-20 · Josh Law <hidden> · 1 Reviewed-by
• STALE173d REVIEWED: 1 (1M) [PATCH v2 3/3] mm/damon/sysfs: check contexts->nr in repeat_call_fn
  2026-03-20 · Josh Law <hidden> · 1 Reviewed-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• DORMANTno replies [PATCH] mm/damon/core: disallow non-power of two min_region_sz
  2026-02-14 · SeongJae Park <sj@kernel.org>
• STALE201d [RFC PATCH 3/3] mm/damon/test/core-kunit: add damon_apply_min_nr_regions() test
  2026-02-17 · SeongJae Park <sj@kernel.org>
• STALE201d [RFC PATCH 2/3] mm/damon/vaddr: do not split regions for min_nr_regions
  2026-02-17 · SeongJae Park <sj@kernel.org>
• STALE201d [RFC PATCH v2 1/3] mm/damon/core: split regions for min_nr_regions
  2026-02-21 · SeongJae Park <sj@kernel.org>
• DORMANTno replies [RFC PATCH v2 3/3] mm/damon/test/core-kunit: add damon_apply_min_nr_regions() test
  2026-02-21 · SeongJae Park <sj@kernel.org>
• DORMANTno replies [RFC PATCH v2 2/3] mm/damon/vaddr: do not split regions for min_nr_regions
  2026-02-21 · SeongJae Park <sj@kernel.org>
• STALE193d [RFC PATCH 03/10] mm/damon/core: add damon_del_region() debug_sanity check
  2026-02-21 · SeongJae Park <sj@kernel.org>
• STALE193d [RFC PATCH 04/10] mm/damon/core: add damon_nr_regions() debug_sanity check
  2026-02-21 · SeongJae Park <sj@kernel.org>
• STALE193d [RFC PATCH 05/10] mm/damon/core: add damon_merge_two_regions() debug_sanity check
  2026-02-21 · SeongJae Park <sj@kernel.org>
• STALE193d [RFC PATCH 07/10] mm/damon/core: add damon_split_region_at() debug_sanity check
  2026-02-21 · SeongJae Park <sj@kernel.org>