From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2E1A234CFA8 for ; Sun, 8 Mar 2026 20:36:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773002164; cv=none; b=HVQT1zpFZ7ym3GuZMPrLwi7eo0qf9565kdeu06mfPDwKKiUQA1ltHZFIWhJ1qC+IyIzkVd5KohBbpWHk7Iw9Ii0I2/7aqQxWUsFebtGbL7wbdd9t6u2/+NVJ+XX1znmGu1MezDNIHRSUKJpH8GyQNHDhjzb/r1DqkcZB8JvALZc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773002164; c=relaxed/simple; bh=JCO2LDVL1Pbl/uvxmg3E/zxvOgSKcbWI+U/+F2dftfM=; h=Date:To:From:Subject:Message-Id; b=qPHTnkp00O4YXHvyQZbh26Lc1TmYWrbVCqYFkjgZ7/acRs3W4NHqhlQZO6+a7JqWdQLWFJgl4HK05tHFPRjpn0SYC839URICBvPgYffEwafNJ3+Fjpcpn7ftZlOIbUXAxE8XZMLdC3cV1AS9Zrq3XA1PRYJDihOIAcuAa9Qvk4k= 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=z2j/J4Hg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="z2j/J4Hg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA0EEC116C6; Sun, 8 Mar 2026 20:36:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1773002163; bh=JCO2LDVL1Pbl/uvxmg3E/zxvOgSKcbWI+U/+F2dftfM=; h=Date:To:From:Subject:From; b=z2j/J4HgN5Rb0+XiXHUidV4gDoUDVdh8LlQTUSPFSMiJEQPD4CL1CjIkTC5JEhfU6 5CPMizaxzw/L7iiOD8DK3cxCA6GaqbQI5WlcGajs67I7I1iu55eU06KOb/wDuuxVSB 07wzne978nNVqjUoh/0DCS5eET80E/mqQvAiU0KY= Date: Sun, 08 Mar 2026 13:36:03 -0700 To: mm-commits@vger.kernel.org,surenb@google.com,rppt@kernel.org,mhocko@suse.com,ljs@kernel.org,liam.howlett@oracle.com,david@kernel.org,davidgow@google.com,corbet@lwn.net,brendan.higgins@linux.dev,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-tests-core-kunit-add-a-test-for-damon_commit_ctx.patch added to mm-new branch Message-Id: <20260308203603.AA0EEC116C6@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/tests/core-kunit: add a test for damon_commit_ctx() has been added to the -mm mm-new branch. Its filename is mm-damon-tests-core-kunit-add-a-test-for-damon_commit_ctx.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-tests-core-kunit-add-a-test-for-damon_commit_ctx.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: SeongJae Park Subject: mm/damon/tests/core-kunit: add a test for damon_commit_ctx() Date: Sat, 7 Mar 2026 11:42:20 -0800 Patch series "mm/damon: test and document power-of-2 min_region_sz requirement". Since commit c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz"), min_region_sz is always restricted to be a power of two. Add a kunit test to confirm the functionality. Also, the change adds a restriction to addr_unit parameter. Clarify it on the document. This patch (of 2): Add a kunit test for confirming the change that is made on commit c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz") functions as expected. Link: https://lkml.kernel.org/r/20260307194222.202075-2-sj@kernel.org Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Gow Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam Howlett Cc: Lorenzo Stoakes (Oracle) Cc: Michal Hocko Cc: Mike Rapoport Cc: SeongJae Park Cc: Suren Baghdasaryan Signed-off-by: Andrew Morton --- mm/damon/tests/core-kunit.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) --- a/mm/damon/tests/core-kunit.h~mm-damon-tests-core-kunit-add-a-test-for-damon_commit_ctx +++ a/mm/damon/tests/core-kunit.h @@ -1057,6 +1057,27 @@ static void damon_test_commit_target_reg (unsigned long[][2]) {{3, 8}, {8, 10}}, 2); } +static void damon_test_commit_ctx(struct kunit *test) +{ + struct damon_ctx *src, *dst; + + src = damon_new_ctx(); + if (!src) + kunit_skip(test, "src alloc fail"); + dst = damon_new_ctx(); + if (!dst) { + damon_destroy_ctx(src); + kunit_skip(test, "dst alloc fail"); + } + /* Only power of two min_region_sz is allowed. */ + src->min_region_sz = 4096; + KUNIT_EXPECT_EQ(test, damon_commit_ctx(dst, src), 0); + src->min_region_sz = 4095; + KUNIT_EXPECT_EQ(test, damon_commit_ctx(dst, src), -EINVAL); + damon_destroy_ctx(src); + damon_destroy_ctx(dst); +} + static void damos_test_filter_out(struct kunit *test) { struct damon_target *t; @@ -1313,6 +1334,7 @@ static struct kunit_case damon_test_case KUNIT_CASE(damos_test_commit_pageout), KUNIT_CASE(damos_test_commit_migrate_hot), KUNIT_CASE(damon_test_commit_target_regions), + KUNIT_CASE(damon_test_commit_ctx), KUNIT_CASE(damos_test_filter_out), KUNIT_CASE(damon_test_feed_loop_next_input), KUNIT_CASE(damon_test_set_filters_default_reject), _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-core-set-quota-score-histogram-with-core-filters.patch mm-damon-core-do-non-safe-region-walk-on-kdamond_apply_schemes.patch mm-damon-core-split-regions-for-min_nr_regions.patch mm-damon-vaddr-do-not-split-regions-for-min_nr_regions.patch mm-damon-test-core-kunit-add-damon_apply_min_nr_regions-test.patch mm-damon-add-config_damon_debug_sanity.patch mm-damon-core-add-damon_new_region-debug_sanity-check.patch mm-damon-core-add-damon_del_region-debug_sanity-check.patch mm-damon-core-add-damon_nr_regions-debug_sanity-check.patch mm-damon-core-add-damon_merge_two_regions-debug_sanity-check.patch mm-damon-core-add-damon_merge_regions_of-debug_sanity-check.patch mm-damon-core-add-damon_split_region_at-debug_sanity-check.patch mm-damon-core-add-damon_reset_aggregated-debug_sanity-check.patch mm-damon-tests-kunitconifg-enable-damon_debug_sanity.patch selftests-damon-config-enable-damon_debug_sanity.patch mm-damon-tests-core-kunit-add-a-test-for-damon_commit_ctx.patch docs-mm-damon-design-document-the-power-of-two-limitation-for-addr_unit.patch mm-damon-core-remove-damos_set_next_apply_sis-duplicates.patch mm-damon-core-use-time_before-for-next_apply_sis.patch mm-damon-core-use-time_after_eq-in-kdamond_fn.patch mm-damon-core-use-mult_frac.patch mm-damon-tests-core-kunit-add-a-test-for-damon_is_last_region.patch mm-damon-core-clarify-damon_set_attrs-usages.patch mm-damon-document-non-zero-length-damon_region-assumption.patch docs-admin-guide-mm-damn-lru_sort-fix-intervals-autotune-parameter-name.patch docs-mm-damon-maintainer-profile-use-flexible-review-cadence.patch docs-mm-damon-index-fix-typo-autoamted-automated.patch