mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation.patch removed from -mm tree
The quilt patch titled
Subject: mm/damon/core: extend probe_hits_wsum() for moving sum based calculation
has been removed from the -mm tree. Its filename was
mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation.patch
This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: SJ Park <[email protected]>
Subject: mm/damon/core: extend probe_hits_wsum() for moving sum based calculation
Date: Fri, 11 Sep 2026 06:55:04 -0700
damon_probe_hits_wsum() is being called only in aggregation time. In future, it could also be used by DAMOS. In this case, since DAMOS uses its own apply_interval, it could be called in sampling time. Then using the not yet fully aggregated probe_hits could result in suboptimum outcomes. Extend damon_probe_hits_wsum() to get the weighted sum based on moving sum to prepare the DAMOS usage.
---
include/linux/damon.h | 2 +- mm/damon/core.c | 8 ++++++-- mm/damon/paddr.c | 2 +- mm/damon/vaddr.c | 2 +- 4 files changed, 9 insertions(+), 5 deletions(-)
include/linux/damon.h renamed from include/linux/damon.h~mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation +1 -1
@@ -1075,7 +1075,7 @@ unsigned int damon_nr_accesses_mvsum(str struct damon_ctx *ctx);unsigned char damon_probe_hits_mvsum (int probe_idx,struct damon_region *r,struct damon_ctx *ctx); -unsigned int damon_probe_hits_wsum (struct damon_region *r,bool last, +unsigned int damon_probe_hits_wsum (struct damon_region *r,bool last,bool mv,struct damon_ctx *ctx); int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges,
mm/damon/core.c renamed from mm/damon/core.c~mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation +6 -2
@@ -469,11 +469,12 @@ static bool damon_is_last_region(struct* damon_probe_hits_wsum() - Returns probe hits weighted sum of a region. * @r: region to get the weighted sum of. * @last: if the request is for last-window aggregated probe hits. +* @mv: use moving sum. * @ctx: context of &r. * * Return: the weighted sum of probe hits of the region. */ -unsigned int damon_probe_hits_wsum (struct damon_region *r,bool last, +unsigned int damon_probe_hits_wsum (struct damon_region *r,bool last,bool mv,struct damon_ctx *ctx) {struct damon_probe *probe;
@@ -483,6 +484,9 @@ unsigned int damon_probe_hits_wsum(strucdamon_for_each_probe (probe, ctx) {if (last) sum += r->last_probe_hits[i++] * probe->weight; +else if (mv) + sum +=damon_probe_hits_mvsum (i++, r, ctx) * + probe->weight;else sum += r->probe_hits[i++] * probe->weight; }
@@ -3472,7 +3476,7 @@ static unsigned int damon_merge_score(st struct damon_ctx *ctx, bool use_probe_hits) { if (use_probe_hits) - return damon_probe_hits_wsum(r, last, ctx); + return damon_probe_hits_wsum(r, last, false, ctx);if (last)return r->last_nr_accesses;return r->nr_accesses;
mm/damon/paddr.c renamed from mm/damon/paddr.c~mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation +1 -1
@@ -208,7 +208,7 @@ static unsigned int damon_pa_apply_probefolio_put (folio);if (return_max_wsum) max_wsum =max (damon_probe_hits_wsum (r, false, - ctx), max_wsum); + false, ctx), max_wsum); } }return max_wsum;
mm/damon/vaddr.c renamed from mm/damon/vaddr.c~mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation +1 -1
@@ -711,7 +711,7 @@ static unsigned int damon_va_apply_probe__damon_va_apply_probes (ctx, mm, r);if (return_max_wsum) max_wsum =max (damon_probe_hits_wsum (r, false, - ctx), max_wsum); + false, ctx), max_wsum); }if (mm)mmput (mm);
_
Patches currently in -mm which might be from [email protected] are
mm-damon-sysfs-schemes-read-sysfs_filter-addr_range-only-once.patch mm-damon-sysfs-schemes-read-sysfs_filter-sz_range-only-once.patch mm-damon-core-return-an-error-from-damos_commit_filter_arg.patch mm-damon-core-disallow-max-min-damos-filter-range-arguments-commit.patch mm-damon-sysfs-schemes-drop-centralized-filter-range-arg-validations.patch mm-damon-sysfs-schemes-use-switch-case-in-add_scheme_filters.patch mm-damon-core-kunit-extend-damos_commit_filter_for-for-wrong-input.patch mm-damon-core-kunit-test-invalid-damos-filter-commits.patch mm-damon-api-introduce-damon_filter_type_hugepage_size.patch mm-damon-core-commit-hugepage_size-type-damon-filter.patch mm-damon-ops-common-support-hugepage_size-damon-filter-matching.patch mm-damon-sysfs-add-minmax-files-under-probe-filter-directory.patch mm-damon-sysfs-support-hugepage_size-probe-filter.patch docs-mm-damon-design-update-for-hugepage_size-probe-filter.patch docs-admin-guide-mm-damon-usage-update-for-hugepage_size.patch docs-abi-damon-update-for-hugepage_size-probe-filter.patch mm-damon-api-remove-nr_damos_filter_types.patch mm-damon-core-use-abs_diff-in-damon_feed_loop_next_input.patch mm-damon-core-use-mult_frac-in-damon_feed_loop_next_input.patch mm-damon-core-set-damon_ctx-walk_control_obsolete-in-damon_new_ctx.patch mm-damon-core-document-damon_call-damon_start-race-hang-issue.patch mm-damon-paddr-remove-pa-parameter-from-damon_pa_filter_pass.patch mm-damon-tests-core-kunit-test-eligible_mem_bp-commitment.patch mm-damon-tests-core-kunit-add-probe_hits_wsum-damos-filter-commit-test.patch selftests-damon-sysfs_memcg_path_leak-fail-only-for-real-damon-leak.patch docs-mm-damon-design-clarify-bp-is-basis-point.patch mm-damon-core-introduce-damos_quota_goal-complement.patch mm-damon-core-add-complement-argument-to-damos_new_quota_goal.patch mm-damon-sysfs-schemes-support-quota-goal-complement-flag.patch mm-damon-tests-core-kunit-test-quota_goal-complement-commit.patch selftests-damon-sysfssh-test-quota-goal-complement-flag-file.patch docs-mm-damon-design-document-damos-quota-goal-complement-flag.patch docs-admin-guide-mm-damon-usage-update-for-quota-goal-complement-file.patch docs-abi-damon-update-for-quota-goal-metric-complement-sysfs-file.patch