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 A6BEB2B9BA for ; Thu, 2 Jul 2026 00:23:07 +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=1782951788; cv=none; b=lp3zerbZV6RKTsBz1JTYiN4IlVE16ACl39kIJxIKrkQzEL0zNqUCSLNdUiZaKbnLY7DRYsZw7mhwkzL7CvFtyIvp+RVdVLa8hHgl37MryVNYaHaijNz8PNp/wkLae1QOC9/gKG2eeCKxb1jQ4cM0Cnz+RNkRcxtUeDwG836bM0w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782951788; c=relaxed/simple; bh=EwwttiladQlTocQe4fVaJgKB1qutblTKF+UWFz/bJXM=; h=Date:To:From:Subject:Message-Id; b=XXHGz0glA01b8gxlmUkWDb+C9GEj1ayconPJp4mLLY86lM04nd65FI72tCsxFLsGv0zbF7QVJjFMwxOATFQ8rWni0BHBMjnhh8ti20/M5rxAfuId3O0/dhVBktIw5y28N51Pt0V14F5C4qEGvDZ53452W2KMCxKdqo44KpqcQ7Q= 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=QTZk7RXm; 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="QTZk7RXm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 234611F000E9; Thu, 2 Jul 2026 00:23:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1782951787; bh=ljH3kpXmUlJVPajljfnzU2Wb7MeQ2Eo77D5wuyTbg0A=; h=Date:To:From:Subject; b=QTZk7RXmLxBAtHBSj/VuN8bKPT0RCJ9cyTbCKe6BdU8FjJDv2I9QuTxNxJfWgfKpb hstV5euEGpKLfL5vhQRSALNw9p2/VgfktzOmS0PqQRH7IfXLuQRQKx6GgZaK6uLPM8 dt9W/fyPrfOSQ6miljA6Pa79qagrF0EuG3uOIcCk= Date: Wed, 01 Jul 2026 17:23:06 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target.patch added to mm-new branch Message-Id: <20260702002307.234611F000E9@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: use damon_nr_accesses_mvsum() in __damos_valid_target() has been added to the -mm mm-new branch. Its filename is mm-damon-core-use-damon_nr_accesses_mvsum-in-__damos_valid_target.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-use-damon_nr_accesses_mvsum-in-__damos_valid_target.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: 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 Cc: Brendan Higgins Cc: "Masami Hiramatsu (Google)" Cc: Mathieu Desnoyers Cc: Shuah Khan Cc: Steven Rostedt Signed-off-by: Andrew Morton --- 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 @@ -2138,10 +2138,11 @@ 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 && @@ -2167,7 +2168,7 @@ 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; @@ -2753,7 +2754,7 @@ 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 */ @@ -3042,7 +3043,7 @@ 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-sysfs-schemes-fix-dir-put-orders-in-access_pattern_add_dirs.patch mm-damon-sysfs-schemes-put-stats-for-scheme_add_dirs-internal-error.patch mm-damon-ops-common-handle-extreme-intervals-in-damon_hot_score.patch mm-damon-add-a-kernel-doc-comment-for-damon_ctx-probes.patch mm-damon-add-a-kernel-doc-comment-for-damon_ctx-rnd_state.patch maintainers-s-seongjae-sj.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