From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DF06E335BB4 for ; Fri, 31 Jul 2026 02:42:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785465765; cv=none; b=dGpf39qtdx+oa+cnX9LBWdQRwKOOB+6U8QofZR7uqwcZbvGH5pW74xO50eAwGB+kiKRxSQkZ64lwQchRQfke5lfJV1ZY6lMLJzpEYUOIJG+TBK12rb4LNGwyDFP0xHPKNMhcVkrTmqJlXGU2tqrMNpZX1QP63/FI8ENW1rAytCk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785465765; c=relaxed/simple; bh=6YieEryPFxh+qHcw+I92sMowaoS1t6y0NoJWw0UGHuw=; h=Date:To:From:Subject:Message-Id; b=iN9fMmND2iAjWwuI48ANbD1Zyfqon+CKGFrvsljxA2LyjTHuHLBgmVs4YQajpYtRU1R2Vxf1xsPnmEVb28ko2c4qcTkbmFZ1GJKXsbAKP+DisHUzLazG+teiHsu7an6xv51J272nLVjsMwl93/T6GGx6axJ24/KTMCCN2AqJGKA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=k9D4CRcn; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="k9D4CRcn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AE0FB1F00A3A; Fri, 31 Jul 2026 02:42:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1785465763; bh=zIQ6KmPOl7zrybp1zdjGN1sjpino6NPvaGL0qGWestA=; h=Date:To:From:Subject; b=k9D4CRcnsAIgilawkhdCie3FnPKTM6gQF7XQN+EpTyYXJLveV1aDp3Wx7G+C/XGbJ C4Os/FIRpGMJXYyiaVydTY+v4GSgk7r9DsZKuR5xLnaJdB7J7YGrWPY53iVwwPMaOs vFKQroMXjwVBl9mjLsfIZn8eJYTX4oZNH+OHx1MA= Date: Thu, 30 Jul 2026 19:42:43 -0700 To: mm-commits@vger.kernel.org,shuah@kernel.org,rostedt@goodmis.org,mhiramat@kernel.org,mathieu.desnoyers@efficios.com,brendan.higgins@linux.dev,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-core-use-damon_nr_accesses_mvsum-for-damos-region-tracing.patch removed from -mm tree Message-Id: <20260731024243.AE0FB1F00A3A@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/damon/core: use damon_nr_accesses_mvsum() for damos region tracing has been removed from the -mm tree. Its filename was mm-damon-core-use-damon_nr_accesses_mvsum-for-damos-region-tracing.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 Subject: mm/damon/core: use damon_nr_accesses_mvsum() for damos region tracing Date: Mon, 29 Jun 2026 21:07:59 -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 the DAMON region exporting trace points instead of the nr_accesses_bp. Link: https://lore.kernel.org/20260630040812.149729-7-sj@kernel.org Signed-off-by: SJ Park Cc: Brendan Higgins Cc: "Masami Hiramatsu (Google)" Cc: Mathieu Desnoyers Cc: Shuah Khan Cc: Steven Rostedt Signed-off-by: Andrew Morton --- include/trace/events/damon.h | 8 +++++--- mm/damon/core.c | 5 +++-- 2 files changed, 8 insertions(+), 5 deletions(-) --- a/include/trace/events/damon.h~mm-damon-core-use-damon_nr_accesses_mvsum-for-damos-region-tracing +++ a/include/trace/events/damon.h @@ -78,9 +78,11 @@ TRACE_EVENT_CONDITION(damos_before_apply TP_PROTO(unsigned int context_idx, unsigned int scheme_idx, unsigned int target_idx, struct damon_region *r, - unsigned int nr_regions, bool do_trace), + unsigned int nr_accesses, unsigned int nr_regions, + bool do_trace), - TP_ARGS(context_idx, scheme_idx, target_idx, r, nr_regions, do_trace), + TP_ARGS(context_idx, scheme_idx, target_idx, r, nr_accesses, + nr_regions, do_trace), TP_CONDITION(do_trace), @@ -101,7 +103,7 @@ TRACE_EVENT_CONDITION(damos_before_apply __entry->target_idx = target_idx; __entry->start = r->ar.start; __entry->end = r->ar.end; - __entry->nr_accesses = r->nr_accesses_bp / 10000; + __entry->nr_accesses = nr_accesses; __entry->age = r->age; __entry->nr_regions = nr_regions; ), --- a/mm/damon/core.c~mm-damon-core-use-damon_nr_accesses_mvsum-for-damos-region-tracing +++ a/mm/damon/core.c @@ -2465,7 +2465,7 @@ static void damos_apply_scheme(struct da struct damos *siter; /* schemes iterator */ unsigned int sidx = 0; struct damon_target *titer; /* targets iterator */ - unsigned int tidx = 0; + unsigned int tidx = 0, nr_accesses = 0; bool do_trace = false; /* get indices for trace_damos_before_apply() */ @@ -2480,6 +2480,7 @@ static void damos_apply_scheme(struct da break; tidx++; } + nr_accesses = damon_nr_accesses_mvsum(r, c); do_trace = true; } @@ -2495,7 +2496,7 @@ static void damos_apply_scheme(struct da if (damos_core_filter_out(c, t, r, s)) return; ktime_get_coarse_ts64(&begin); - trace_damos_before_apply(cidx, sidx, tidx, r, + trace_damos_before_apply(cidx, sidx, tidx, r, nr_accesses, damon_nr_regions(t), do_trace); sz_applied = c->ops.apply_scheme(c, t, r, s, &sz_ops_filter_passed); _ 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