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 06320365A0B for ; Tue, 24 Mar 2026 21:44:27 +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=1774388667; cv=none; b=ukPTaMzy2X79tXpe5MURSlkXdqCwnak1wQ/NXR6yaEzKYlmiIGAmZ0a6ZLdmxS0ZND2ybX+w8dGRd1cDXw9dtiwrOAlxPWZH9LD4z3TlDDAZsbj2LxRDe52NaqaA4YLlR2ZxW77NjydohlT1asyeuR3hcIr7pg5vS4G5K225NyI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774388667; c=relaxed/simple; bh=UGygwT5Po2zxTxSuEhnws4keQpL8ttXU/MHLPWYkgS8=; h=Date:To:From:Subject:Message-Id; b=H0T/oDgJjPvcvmD30MiZodio6cWkuhGtS8KgP+q7y88N8sEuRNkk0XwYJQgqORTryJtuUhEUkHD8JhS+dyW1jqAthfbs2MN68vHzKVW1DyibZiI4z1y+MW3eaz0Vc9DMqkpDy9Kn8E3MNdPLENV2165hPIgeM/wsZJvFVl8mHn0= 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=ANv5dXAg; 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="ANv5dXAg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2F9EC19424; Tue, 24 Mar 2026 21:44:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774388666; bh=UGygwT5Po2zxTxSuEhnws4keQpL8ttXU/MHLPWYkgS8=; h=Date:To:From:Subject:From; b=ANv5dXAgUrjIb84PWdGyghbi2k7qmu9ZG6UtjRTIC6jgIJVQ8hV2mgQB2ukc1KkpR t8KSss/7+XjP/Py8F8YpwJMFEnoBJbg+/BE1qQAeE25bx57O5vNezrBnQ9GE8NqUpa AjHzVlISfW5jG6+CAW4Cui0VF3E7GJexR+4zE1Y8= Date: Tue, 24 Mar 2026 14:44:26 -0700 To: mm-commits@vger.kernel.org,davidgow@google.com,brendan.higgins@linux.dev,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-test-core-kunit-add-damon_apply_min_nr_regions-test.patch removed from -mm tree Message-Id: <20260324214426.D2F9EC19424@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/test/core-kunit: add damon_apply_min_nr_regions() test has been removed from the -mm tree. Its filename was mm-damon-test-core-kunit-add-damon_apply_min_nr_regions-test.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: SeongJae Park Subject: mm/damon/test/core-kunit: add damon_apply_min_nr_regions() test Date: Sat, 28 Feb 2026 14:28:27 -0800 Add a kunit test for the functionality of damon_apply_min_nr_regions(). Link: https://lkml.kernel.org/r/20260228222831.7232-4-sj@kernel.org Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Gow Signed-off-by: Andrew Morton --- mm/damon/tests/core-kunit.h | 52 ++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) --- a/mm/damon/tests/core-kunit.h~mm-damon-test-core-kunit-add-damon_apply_min_nr_regions-test +++ a/mm/damon/tests/core-kunit.h @@ -1239,6 +1239,57 @@ static void damon_test_set_filters_defau damos_free_filter(target_filter); } +static void damon_test_apply_min_nr_regions_for(struct kunit *test, + unsigned long sz_regions, unsigned long min_region_sz, + unsigned long min_nr_regions, + unsigned long max_region_sz_expect, + unsigned long nr_regions_expect) +{ + struct damon_ctx *ctx; + struct damon_target *t; + struct damon_region *r; + unsigned long max_region_size; + + ctx = damon_new_ctx(); + if (!ctx) + kunit_skip(test, "ctx alloc fail\n"); + t = damon_new_target(); + if (!t) { + damon_destroy_ctx(ctx); + kunit_skip(test, "target alloc fail\n"); + } + damon_add_target(ctx, t); + r = damon_new_region(0, sz_regions); + if (!r) { + damon_destroy_ctx(ctx); + kunit_skip(test, "region alloc fail\n"); + } + damon_add_region(r, t); + + ctx->min_region_sz = min_region_sz; + ctx->attrs.min_nr_regions = min_nr_regions; + max_region_size = damon_apply_min_nr_regions(ctx); + + KUNIT_EXPECT_EQ(test, max_region_size, max_region_sz_expect); + KUNIT_EXPECT_EQ(test, damon_nr_regions(t), nr_regions_expect); + + damon_destroy_ctx(ctx); +} + +static void damon_test_apply_min_nr_regions(struct kunit *test) +{ + /* common, expected setup */ + damon_test_apply_min_nr_regions_for(test, 10, 1, 10, 1, 10); + /* no zero size limit */ + damon_test_apply_min_nr_regions_for(test, 10, 1, 15, 1, 10); + /* max size should be aligned by min_region_sz */ + damon_test_apply_min_nr_regions_for(test, 10, 2, 2, 6, 2); + /* + * when min_nr_regions and min_region_sz conflicts, min_region_sz wins. + */ + damon_test_apply_min_nr_regions_for(test, 10, 2, 10, 2, 5); +} + static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damon_test_target), KUNIT_CASE(damon_test_regions), @@ -1265,6 +1316,7 @@ static struct kunit_case damon_test_case KUNIT_CASE(damos_test_filter_out), KUNIT_CASE(damon_test_feed_loop_next_input), KUNIT_CASE(damon_test_set_filters_default_reject), + KUNIT_CASE(damon_test_apply_min_nr_regions), {}, }; _ Patches currently in -mm which might be from sj@kernel.org are 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 mm-damon-core-introduce-damos_quota_goal_tuner.patch mm-damon-core-allow-quota-goals-set-zero-effective-size-quota.patch mm-damon-core-introduce-damos_quota_goal_tuner_temporal.patch mm-damon-sysfs-schemes-implement-quotas-goal_tuner-file.patch docs-mm-damon-design-document-the-goal-based-quota-tuner-selections.patch docs-admin-guide-mm-damon-usage-document-goal_tuner-sysfs-file.patch docs-abi-damon-update-for-goal_tuner.patch mm-damon-tests-core-kunit-test-goal_tuner-commit.patch selftests-damon-_damon_sysfs-support-goal_tuner-setup.patch selftests-damon-drgn_dump_damon_status-support-quota-goal_tuner-dumping.patch selftests-damon-sysfspy-test-goal_tuner-commit.patch mm-damon-core-fix-wrong-end-address-assignment-on-walk_system_ram.patch mm-damon-core-support-addr_unit-on-damon_find_biggest_system_ram.patch mm-damon-core-support-addr_unit-on-damon_find_biggest_system_ram-fix.patch mm-damon-core-receive-addr_unit-on-damon_set_region_biggest_system_ram_default.patch mm-damon-core-receive-addr_unit-on-damon_set_region_biggest_system_ram_default-fix.patch mm-damon-reclaim-respect-addr_unit-on-default-monitoring-region-setup.patch mm-damon-lru_sort-respect-addr_unit-on-default-monitoring-region-setup.patch