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 93F3133EC for ; Sun, 5 Jul 2026 02:05:25 +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=1783217126; cv=none; b=Dni0zGrWfd0XZq9pl+rzeWbdOQqe/K+/KePXa32am8psPku1Qd+/xVTeNz/S7d3/mwLdUF8YzpygP9r30hOUAnz/TTFK6gYO4K0YvOdqd/tLH3vJkWmIyKLRO8HWVxntQBNOnw/V5NN4WWF8jTkCm0HMgZlJaBVdL9JVvhn+85A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783217126; c=relaxed/simple; bh=dT1dy+yH06ykEFH5gxAozrfVl60f8n4QVvdGkeNIQrE=; h=Date:To:From:Subject:Message-Id; b=XieZhw8TL8gDb3DDTKbr0gLCpIYkF4WyFe0hhN6ixIhQv5q3hc5/J9QqxvDLsXYOoJBFmk5Su1g2+WVVxq1/L7lq/dFu4xAodaNWbMHWHkelcdMMjDu7GK59w70mso7WnQlDbKkIZu99owrPxNp0ot1Fm3Fj3T+CHrJssqcHlv0= 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=uIcLtisa; 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="uIcLtisa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A98F1F000E9; Sun, 5 Jul 2026 02:05:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1783217125; bh=NFQaVuTnN7yV2g3YUZhzzzhH3qzJVF/19n6PQ7OvWUc=; h=Date:To:From:Subject; b=uIcLtisaqBDOTfiZv6Jkc7JkycqrStoNvkhwSo9UD+ytBHPw52Equo7OeN//84z15 G29BHtaONyuh0dy0TiKQSs+4wspIyLC0iKRDnnf8iQlyPep8k4PfgIE6jajYLusNve Zo9D8QhRsOkR81v+jHmIEmrC6XyqTn80KjcDRLdU= Date: Sat, 04 Jul 2026 19:05:24 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-core-introduce-damon_probe_hits_mvsum.patch added to mm-new branch Message-Id: <20260705020525.1A98F1F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/damon/core: introduce damon_probe_hits_mvsum() has been added to the -mm mm-new branch. Its filename is mm-damon-core-introduce-damon_probe_hits_mvsum.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-core-introduce-damon_probe_hits_mvsum.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: SJ Park Subject: mm/damon/core: introduce damon_probe_hits_mvsum() Date: Fri, 3 Jul 2026 10:06:02 -0700 Implement a function for getting a reasonable best effort quality pseudo moving sums of probe_hits on demands. It reuses the internal function for the pseudo moving sum for data access frequency (nr_accesses). Link: https://lore.kernel.org/20260703170605.94472-3-sj@kernel.org Signed-off-by: SJ Park Signed-off-by: Andrew Morton --- include/linux/damon.h | 2 ++ mm/damon/core.c | 21 +++++++++++++++++++++ 2 files changed, 23 insertions(+) --- a/include/linux/damon.h~mm-damon-core-introduce-damon_probe_hits_mvsum +++ a/include/linux/damon.h @@ -1003,6 +1003,8 @@ void damon_add_probe(struct damon_ctx *c struct damon_region *damon_new_region(unsigned long start, unsigned long end); unsigned int damon_nr_accesses_mvsum(struct damon_region *r, struct damon_ctx *ctx); +unsigned char damon_probe_hits_mvsum(int probe_idx, struct damon_region *r, + struct damon_ctx *ctx); int damon_set_regions(struct damon_target *t, struct damon_addr_range *ranges, unsigned int nr_ranges, unsigned long min_region_sz); --- a/mm/damon/core.c~mm-damon-core-introduce-damon_probe_hits_mvsum +++ a/mm/damon/core.c @@ -273,6 +273,27 @@ unsigned int damon_nr_accesses_mvsum(str left_window_bp); } +unsigned char damon_probe_hits_mvsum(int probe_idx, struct damon_region *r, + struct damon_ctx *ctx) +{ + unsigned long sample_interval, aggr_interval; + unsigned long window_len, left_window, left_window_bp; + + sample_interval = ctx->attrs.sample_interval ? : 1; + aggr_interval = ctx->attrs.aggr_interval ? : 1; + window_len = aggr_interval / sample_interval; + if (time_after_eq(ctx->passed_sample_intervals, + ctx->next_aggregation_sis)) + left_window = 0; + else + left_window = ctx->next_aggregation_sis - + ctx->passed_sample_intervals; + left_window_bp = mult_frac(left_window, 10000, window_len); + + return damon_mvsum(r->probe_hits[probe_idx], + r->last_probe_hits[probe_idx], left_window_bp); +} + #ifdef CONFIG_DAMON_DEBUG_SANITY static void damon_verify_new_region(unsigned long start, unsigned long end) { _ Patches currently in -mm which might be from sj@kernel.org are maintainers-s-seongjae-sj.patch mm-damon-core-validate-ranges-in-damon_set_regions.patch samples-damon-wsse-handle-damon_start-failure.patch samples-damon-prcl-handle-damon_start-failure.patch samples-damon-mtier-handle-damon_start-failure.patch samples-damon-mtier-handle-damon_stop-failure.patch samples-damon-wsse-stop-and-free-damon-ctx-when-damon_call-fails.patch samples-damon-prcl-stop-and-free-damon-ctx-when-damon_call-fails.patch mm-damon-sysfs-kobject_del-target-normal-context-and-kdamond-dirs.patch mm-damon-sysfs-kobject_del-region-and-target-error-dirs.patch mm-damon-sysfs-schemes-kobject_del-scheme-dirs.patch mm-damon-sysfs-schemes-kobject_del-scheme-region-dirs.patch mm-damon-sysfs-schemes-kobject_del-scheme-filter-dirs.patch mm-damon-sysfs-schemes-kobject_del-scheme-quota-goal-dirs.patch mm-damon-sysfs-schemes-kobject_del-scheme-action-destination-dirs.patch mm-damon-sysfs-kobject_del-probe-dirs.patch mm-damon-sysfs-kobject_del-probe-filter-dirs.patch mm-damon-sysfs-kobject_del-probe-dirs-in-probes_addd_dir-error-path.patch mm-damon-sysfs-schemes-kobject_del-region-for-populate_region-error.patch docs-mm-damon-design-update-for-damos_quota_node_eligible_mem_bp.patch docs-abi-damon-document-probe-files.patch mm-damon-tests-core-kunit-test-damon_rand.patch selftests-damon-sysfssh-test-multiple-probe-dirs-creation.patch selftests-damon-sysfssh-test-coreops_filters-directories.patch selftests-damon-sysfssh-test-dests-dir.patch selftests-damon-sysfssh-test-all-files-in-quota-goal-dir.patch mm-damon-core-reduce-range-setup-in-damon_commit_target_regions.patch mm-damon-sysfs-split-probe-setup-function-out.patch mm-damon-sysfs-split-out-filters-setup-function.patch mm-damon-sysfs-fix-typos-in-probe_addrm_dirs-s-attr-probe.patch mm-damon-core-introduce-damon_nr_accesses_mvsum.patch mm-damon-tests-core-kunit-test-damon_mvsum.patch mm-damon-core-always-update-last_nr_accesses-for-intervals-change.patch mm-damon-core-handle-unreset-nr_accesses-in-damon_nr_accesses_mvsum.patch mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target.patch mm-damon-core-use-damon_nr_accesses_mvsum-for-damos-region-tracing.patch mm-damon-sysfs-schemes-use-damon_nr_accesses_mvsum-for-damo-regions.patch mm-damon-core-remove-damon_warn_fix_nr_accesses_corruption.patch mm-damon-core-remove-damon_verify_reset_aggregated.patch mm-damon-core-remove-damon_verify_merge_regions_of.patch mm-damon-tests-core-kunit-remove-nr_accesses_bp-setup-and-tests.patch selftests-damon-drgn_dump_damon_status-do-not-dump-nr_accesses_bp.patch mm-damon-core-remove-nr_accesses_bp-setups-and-updates.patch mm-damon-core-remove-attrs-param-from-damon_update_region_access_rate.patch mm-damon-paddr-remove-attrs-param-from-__damon_pa_check_access.patch mm-damon-vaddr-remove-attrs-param-from-__damon_va_check_access.patch mm-damon-core-remove-damon_moving_sum-and-its-unit-test.patch mm-damon-core-remove-damon_region-nr_accesses_bp.patch mm-damon-add-damon_region-last_probe_hits.patch mm-damon-core-introduce-damon_probe_hits_mvsum.patch mm-damon-sysfs-schemes-set-probe-hits-as-pseudo-moving-sums.patch mm-damon-core-disallow-overlapping-input-ranges-for-damon_set_regions.patch