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 5A0BF492E21 for ; Tue, 8 Sep 2026 23:10:38 +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=1788909039; cv=none; b=VmdNWUYrkwJ8ozSIT6OTenM9GFgvURxQSxlu55jcgoWJewYUOF+dbdY4ifceJSARIuaLOlm2xfYJ8X4C6UtSPoT94ialIFwlr7lOwX/spAaY6xUpFXwUz/+HKQ10FMj3IH/jKrkYK6z6pdf28s4dgvQLcNIEKXEc/pqoWl+x44g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788909039; c=relaxed/simple; bh=mmKyTm24OnK/4/k3f0qWWrhZ4PmgtVoQmeFOtuiD8jg=; h=Date:To:From:Subject:Message-Id; b=BtLRVAID1+bLiXTyiohyciWqlgRa2S4Hb5JoINh1JzKMCMF2W2UKZuLNCWaeB0EY9l9y6solZ0d4gB4xlodO+TkTlmYpO0nqAe3EbKE7OpX+2PkGsFD8RSEfJld5UNEbbpORk4cP0zupvCxcN82b1VOcCsvVYcwizctaacuOSzs= 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=qgb8qNdi; 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="qgb8qNdi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D60EC1F00A3A; Tue, 8 Sep 2026 23:10:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1788909037; bh=a5gNPvL6wT5okrlI3O2t8FynhtpfbEy126M2CDGM/Ag=; h=Date:To:From:Subject; b=qgb8qNdijGdapGk9FSVqSUrumOcTaiGbqQWZjzFepC2+yMNz/dn6YXhczGz/k3ZD4 f/gYMqqHZtt+ea1Oc4R/ZHIQM8faAkt7OFwB8Dl9VObuAwUpDzOqpf+cpo+IhFLWFD e+zjV8N6AFR0rlG4KKzcvp/gEnCufq4Co0Tj2qQI= Date: Tue, 08 Sep 2026 16:10:37 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-tests-core-kunit-add-damon_commit_probes-test.patch added to mm-unstable branch Message-Id: <20260908231037.D60EC1F00A3A@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 damon_commit_probes() test has been added to the -mm mm-unstable branch. Its filename is mm-damon-tests-core-kunit-add-damon_commit_probes-test.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-damon_commit_probes-test.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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/tests/core-kunit: add damon_commit_probes() test Date: Wed, 2 Sep 2026 07:03:08 -0700 Add kunit test to ensure damon_commit_probes() updates destination DAMON context with source probes as expected. Link: https://lore.kernel.org/20260902140313.85983-3-sj@kernel.org Signed-off-by: SJ Park Cc: Brendan Higgins Cc: David Gow Cc: Shuah Khan Signed-off-by: Andrew Morton --- mm/damon/tests/core-kunit.h | 84 ++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) --- a/mm/damon/tests/core-kunit.h~mm-damon-tests-core-kunit-add-damon_commit_probes-test +++ a/mm/damon/tests/core-kunit.h @@ -1355,6 +1355,89 @@ static void damon_test_commit_filter(str }); } +static struct damon_ctx *damon_test_help_setup_probes(unsigned int weights[], + int nr_weights) +{ + struct damon_ctx *ctx; + struct damon_probe *probe; + int i; + + ctx = damon_new_ctx(); + if (!ctx) + return NULL; + for (i = 0; i < nr_weights; i++) { + probe = damon_new_probe(); + if (!probe) { + damon_destroy_ctx(ctx); + return NULL; + } + probe->weight = weights[i]; + damon_add_probe(ctx, probe); + } + return ctx; +} + +static void damon_test_commit_probes_for(struct kunit *test, + unsigned int dst_weights[], int nr_dst_probes, + unsigned int src_weights[], int nr_src_probes) +{ + struct damon_ctx *dst, *src; + int err; + struct damon_probe *dst_probe, *src_probe; + + dst = damon_test_help_setup_probes(dst_weights, nr_dst_probes); + if (!dst) + kunit_skip(test, "dst alloc fail"); + src = damon_test_help_setup_probes(src_weights, nr_src_probes); + if (!src) { + damon_destroy_ctx(dst); + kunit_skip(test, "src alloc fail"); + } + + err = damon_commit_probes(dst, src); + KUNIT_EXPECT_EQ(test, err, 0); + if (err) + goto out; + nr_dst_probes = 0; + damon_for_each_probe(dst_probe, dst) + nr_dst_probes++; + nr_src_probes = 0; + damon_for_each_probe(src_probe, src) + nr_src_probes++; + KUNIT_EXPECT_EQ(test, nr_dst_probes, nr_src_probes); + if (nr_dst_probes != nr_src_probes) + goto out; + nr_dst_probes = 0; + damon_for_each_probe(dst_probe, dst) { + src_probe = damon_nth_probe(nr_dst_probes, src); + KUNIT_EXPECT_EQ(test, src_probe->weight, dst_probe->weight); + nr_dst_probes++; + } +out: + damon_destroy_ctx(dst); + damon_destroy_ctx(src); +} + +static void damon_test_commit_probes(struct kunit *test) +{ + damon_test_commit_probes_for(test, + (unsigned int[]){}, 0, (unsigned int[]){}, 0); + damon_test_commit_probes_for(test, + (unsigned int[]){}, 0, (unsigned int[]){1}, 1); + damon_test_commit_probes_for(test, + (unsigned int[]){}, 0, (unsigned int[]){1, 2}, 2); + damon_test_commit_probes_for(test, + (unsigned int[]){1}, 1, (unsigned int[]){2}, 1); + damon_test_commit_probes_for(test, + (unsigned int[]){1}, 1, (unsigned int[]){2, 3}, 2); + damon_test_commit_probes_for(test, + (unsigned int[]){2, 3}, 2, (unsigned int[]){1}, 1); + damon_test_commit_probes_for(test, + (unsigned int[]){2, 3}, 2, (unsigned int[]){}, 0); + damon_test_commit_probes_for(test, + (unsigned int[]){2}, 1, (unsigned int[]){}, 0); +} + static void damon_test_commit_ctx(struct kunit *test) { struct damon_ctx *src, *dst; @@ -1762,6 +1845,7 @@ static struct kunit_case damon_test_case KUNIT_CASE(damos_test_commit_migrate_hot), KUNIT_CASE(damon_test_commit_target_regions), KUNIT_CASE(damon_test_commit_filter), + KUNIT_CASE(damon_test_commit_probes), KUNIT_CASE(damon_test_commit_ctx), KUNIT_CASE(damon_test_valid_probe_params), KUNIT_CASE(damos_test_filter_out), _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-vaddr-avoid-hw-driven-pte-updates-during-damon_hugetlb_mkold.patch mm-damon-core-skip-applying-scheme-if-region-split-for-quota-fails.patch mm-damon-paddr-respect-folio-end-for-damos_stat.patch mm-damon-paddr-respect-folio-end-for-damos-actions-except-stat.patch mm-damon-vaddr-respect-folio-end-for-damos_stat.patch mm-damon-vaddr-respect-folio-end-for-damos_migrate_hotcold.patch mm-damon-core-handle-extreme-memory-state-in-damon_get_node_mem_bp.patch mm-damon-core-handle-extreme-memory-state-in-get_node_memcg_used_bp.patch mm-damon-core-handle-extreme-memory-state-in-get_in_active_mem_bp.patch mm-damon-core-introduce-damon_filter_type_pgidle_unset.patch mm-damon-paddr-support-pgidle_unset-probe-filter-type.patch mm-damon-sysfs-support-pgidle_unset-probe-filter-type.patch docs-mm-damon-design-document-pgidle_unset-probe-filter-type.patch mm-damon-core-introduce-damon_prep-struct.patch mm-damon-core-commit-preps.patch mm-damon-core-introduce-damon_operations-prep_probes.patch mm-damon-paddr-support-damon_prep.patch mm-damon-sysfs-implement-preps-directory.patch mm-damon-sysfs-implement-preps-nr_preps-file.patch mm-damon-sysfs-create-directories-for-nr_preps-writes.patch mm-damon-sysfs-implement-prep_action-file.patch mm-damon-sysfs-pass-preps-to-damon-core.patch selftests-damon-sysfssh-test-probe-prep-sysfs-files.patch docs-mm-damon-design-document-probe-preps.patch docs-admin-guide-mm-damon-usage-document-probe-preps-sysfs-files.patch docs-abi-damon-document-probe-prep-sysfs-files.patch mm-damon-tests-core-kunit-test-committing-psi-goal-to-psi-goal.patch mm-damon-core-handle-uninitialized-damos_quota_goal-last_psi_total.patch mm-damon-core-copy-nid-for-eligible_mem_bp-damos-quota-goal-commit.patch mm-damon-sysfs-set-next-refresh-jiffies-per-sysfs-context.patch mm-damon-tests-core-kunit-test-damon_commit_filter.patch mm-damon-tests-core-kunit-add-damon_commit_probes-test.patch selftests-damon-_damon_sysfs-implement-damonprobes.patch selftests-damon-drgn_dump_damon_status-dump-probes.patch selftests-damon-sysfspy-extend-commit-assertion-function-for-probes.patch selftests-damon-sysfspy-test-damon-probes.patch mm-damon-core-use-damon_nr_samples_per_aggr-for-max-merge-threshold.patch mm-damon-core-remove-debug-messages.patch mm-damon-core-remove-debug-messages-fix.patch mm-damon-vaddr-remove-a-debug-message.patch mm-damon-core-validate-number-of-probes-in-valid_probe_params.patch mm-damon-sysfs-remove-probes-number-validation.patch mm-damon-tests-core-kunit-extend-set_regions-test-for-error-case.patch mm-damon-tests-core-kunit-test-=0-size-damon_set_regions-inputs.patch mm-damon-tests-core-kunit-test-overlapping-ranges-for-set_regions.patch mm-damon-tests-core-kunit-test-damon_nr_samples_per_aggr.patch selftests-damon-sysfssh-test-hugepage_mem_bp-quota-goal.patch docs-mm-damon-maintainer-profile-update-ai-review-for-sashiko-replies.patch docs-abi-damon-recommend-subsystem-doc-instead-of-admin-guide.patch mm-damon-core-error-damos_commit_quota_goal-for-zero-target_value.patch revert-mm-damon-lru_sort-error-out-for-10000-active_mem_bp.patch revert-samples-damon-mtier-error-out-for-zero-quota-goal-target-values.patch mm-damon-core-handle-null-ctx-parameter-in-damon_call.patch mm-damon-core-set-ctx-call_controls_obsolete-in-damon_new_ctx.patch mm-damon-reclaim-remove-unnecessary-damon_call-param-validation.patch mm-damon-lru_sort-remove-unnecessary-damon_call-param-validation.patch