[merged mm-stable] mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target.patch removed from -mm tree

[merged mm-stable] mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/damon/core: use damon_nr_accesses_mvsum() in __damos_valid_target()
has been removed from the -mm tree.  Its filename was
     mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target.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 <sj@kernel.org>
Subject: mm/damon/core: use damon_nr_accesses_mvsum() in __damos_valid_target()
Date: Mon, 29 Jun 2026 21:07:58 -0700

damon_nr_accesses_mvsum() returns a value same to nr_accesses_bp.  Also
the function is more simple and therefore more tolerant to errors. 
Execution of the function would be more expensive than the simple read of
the field, but because the function is quite simple, the overhead should
be negligible.  Use it in __damos_valid_target() instead of the
nr_accesses_bp.

Link: https://lore.kernel.org/20260630040812.149729-6-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/core.c |   11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

--- a/mm/damon/core.c~mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target
+++ a/mm/damon/core.c
@@ -2151,10 +2151,11 @@ static noinline_for_stack void kdamond_t
 	damon_set_attrs(c, &new_attrs);
 }
 
-static bool __damos_valid_target(struct damon_region *r, struct damos *s)
+static bool __damos_valid_target(struct damon_region *r, struct damos *s,
+		struct damon_ctx *c)
 {
 	unsigned long sz;
-	unsigned int nr_accesses = r->nr_accesses_bp / 10000;
+	unsigned int nr_accesses = damon_nr_accesses_mvsum(r, c);
 
 	sz = damon_sz_region(r);
 	return s->pattern.min_sz_region <= sz &&
@@ -2180,7 +2181,7 @@ static bool damos_quota_is_set(struct da
 static bool damos_valid_target(struct damon_ctx *c, struct damon_region *r,
 		struct damos *s)
 {
-	bool ret = __damos_valid_target(r, s);
+	bool ret = __damos_valid_target(r, s, c);
 
 	if (!ret || !damos_quota_is_set(&s->quota) || !c->ops.get_scheme_score)
 		return ret;
@@ -2766,7 +2767,7 @@ static phys_addr_t damos_calc_eligible_b
 		damon_for_each_region(r, t) {
 			phys_addr_t addr, end_addr;
 
-			if (!__damos_valid_target(r, s))
+			if (!__damos_valid_target(r, s, c))
 				continue;
 
 			/* Convert from core address units to physical bytes */
@@ -3055,7 +3056,7 @@ static void damos_adjust_quota(struct da
 			(DAMOS_MAX_SCORE + 1));
 	damon_for_each_target(t, c) {
 		damon_for_each_region(r, t) {
-			if (!__damos_valid_target(r, s))
+			if (!__damos_valid_target(r, s, c))
 				continue;
 			if (damos_core_filter_out(c, t, r, s))
 				continue;
_

Patches currently in -mm which might be from sj@kernel.org are

mm-damon-adjust-isolated-pages-stat-for-damos_migrate_hotcold.patch
mm-damon-core-stop-ctxs-in-damon_start-before-returning-an-error.patch
samples-damon-mtier-do-not-stop-first-context-for-damon_start-failure.patch
mm-damon-core-make-damon_stop-never-fails.patch
mm-damon-sysfs-ignore-damon_stop-return-value.patch
mm-damon-reclaaim-ignore-damon_stop-return-value.patch
mm-damon-lru_sort-ignore-damon_stop-return-value.patch
mm-damon-core-change-damon_stop-return-type-to-void.patch
samples-damon-mtier-stop-all-contexts-with-single-damon_stop-call.patch
mm-damon-core-wait-ctx-stop-in-damon_call-before-reruning-an-error.patch
samples-damon-wsse-do-not-stop-ctx-for-damon_call-failure.patch
samples-damon-prcl-do-not-stop-damon-for-damon_call-failure.patch
mm-damon-core-remove-comment-and-test-for-nr_to_bp-divide-by-zero.patch
mm-damon-core-s-damon_max_nr_accesses-damon_nr_samples_per_aggr.patch
mm-damon-core-s-accesses_bp_to_nr_accesses-sample_bp_to_count.patch
mm-damon-core-s-nr_accesses_to_accesses_bp-sample_count_to_bp.patch
mm-damon-core-s-nr_accesses_for_new_attrs-nr_samples_for_new_attrs.patch
mm-damon-core-update-probe-hits-for-new-parameter-commit.patch
mm-damon-core-handle-unreset-probe_hits-in-probe_hits_mvsum.patch
mm-damon-core-introduce-damon_probe-weight.patch
mm-damon-core-ask-apply_probes-ops-callback-to-set-sampling-address.patch
mm-damon-paddr-set-samples-in-apply_probes-if-requested.patch
mm-damon-core-ask-apply_probe-to-return-max-probe-hits-weighted-sum.patch
mm-damon-core-implement-damon_probe_hits_wsum.patch
mm-damon-paddr-respect-return_max_wsum.patch
mm-damon-core-use-abs_diff-instead-of-abs.patch
mm-damon-core-extend-merge-function-to-work-with-probe-hits.patch
mm-damon-core-disallow-probe_hits-overflow-on-attrs-only-monitoring.patch
mm-damon-core-validate-params-for-probe-hits-weighted-sum-overflow.patch
mm-damon-core-disable-access-monitoring-when-probe-weights-are-set.patch
mm-damon-core-set-samples-in-apply_probes-if-probe-weights-are-set.patch
mm-damon-core-s-max_nr_accesses-max_merge_score-in-kdamond_fn.patch
mm-damon-core-get-merge-threshold-from-probe-hits-when-weights-are-set.patch
mm-damon-core-implement-damon_has_probe_weight.patch
mm-damon-sysfs-implement-probe-weight-file.patch
docs-mm-damon-design-document-attrs-only-monitoring.patch
docs-admin-guide-mm-damon-usage-document-weight-sysfs-file.patch
docs-abi-damon-document-probe-weight-file.patch
mm-damon-core-skip-aging-from-repeated-aggressive-merging.patch
mm-damon-core-hide-private-damon_region-fields.patch
mm-damon-core-hide-private-damon_target-fields.patch
mm-damon-core-hide-private-damos_quota_goal-fields.patch
mm-damon-core-hide-private-damos_quota-fields.patch
mm-damon-core-hide-private-damos_filter-fields.patch
mm-damon-core-hide-private-damos-fields.patch
mm-damon-core-hide-private-damon_filter-fields.patch
mm-damon-core-hide-private-damon_probe-fields.patch
mm-damon-sysfs-do-not-directly-access-damon_ctx-ops.patch
mm-damon-core-hide-core-private-damon_ctx-fields.patch
mm-damon-core-avoid-infinite-kdamond_merge_regions-internal-loop.patch
mm-damon-tests-core-kunit-catch-test-failure-in-test_merge_regions_of.patch
mm-damon-vaddr-drop-last-same-folio-access-check-optimization.patch
mm-damon-paddr-drop-last-same-folio-access-check-reuse-optimization.patch
mm-damon-sysfs-read-addr_unit-only-once-in-damon_sysfs_apply_inputs.patch
mm-damon-sysfs-read-ops_id-only-once-in-damon_sysfs_apply_inputs.patch
mm-damon-core-initialize-damos-last_applied.patch
mm-damon-core-kunit-check-region-count-before-testing-in-split_at.patch
mm-damon-vaddr-kunit-check-region-count-in-three_regions-test.patch
mm-damon-core-kunit-handle-region-split-failure-in-filter_out.patch
mm-damon-core-kunit-skip-wrong-dest-walk-in-commit_dests_for.patch
mm-damon-core-kunit-skip-wrong-quota-goal-walk-in-commit_quota_goals.patch
mm-damon-core-kunit-skip-wrong-region-walk-in-commit_target_regions.patch
mm-damon-ops-common-use-nr_accesses-moving-sum-for-quota-score.patch
mm-damon-core-handle-region-split-failure-in-apply_min_nr_regions.patch