+ selftests-damon-test-quota-goals-directory.patch added to mm-unstable branch

+ selftests-damon-test-quota-goals-directory.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: selftests/damon: test quota goals directory
has been added to the -mm mm-unstable branch.  Its filename is
     selftests-damon-test-quota-goals-directory.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-test-quota-goals-directory.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: selftests/damon: test quota goals directory
Date: Thu, 30 Nov 2023 02:36:49 +0000

Add DAMON selftests for testing creation/existence of quota goals
directories and files, and simple valid input writes.

Link: https://lkml.kernel.org/r/20231130023652.50284-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/damon/sysfs.sh |   27 +++++++++++++++++++++++
 1 file changed, 27 insertions(+)

--- a/tools/testing/selftests/damon/sysfs.sh~selftests-damon-test-quota-goals-directory
+++ a/tools/testing/selftests/damon/sysfs.sh
@@ -150,6 +150,32 @@ test_weights()
 	ensure_file "$weights_dir/age_permil" "exist" "600"
 }
 
+test_goal()
+{
+	goal_dir=$1
+	ensure_dir "$goal_dir" "exist"
+	ensure_file "$goal_dir/target_value" "exist" "600"
+	ensure_file "$goal_dir/current_value" "exist" "600"
+}
+
+test_goals()
+{
+	goals_dir=$1
+	ensure_dir "$goals_dir" "exist"
+	ensure_file "$goals_dir/nr_goals" "exist" "600"
+
+	ensure_write_succ  "$goals_dir/nr_goals" "1" "valid input"
+	test_goal "$goals_dir/0"
+
+	ensure_write_succ  "$goals_dir/nr_goals" "2" "valid input"
+	test_goal "$goals_dir/0"
+	test_goal "$goals_dir/1"
+
+	ensure_write_succ  "$goals_dir/nr_goals" "0" "valid input"
+	ensure_dir "$goals_dir/0" "not_exist"
+	ensure_dir "$goals_dir/1" "not_exist"
+}
+
 test_quotas()
 {
 	quotas_dir=$1
@@ -158,6 +184,7 @@ test_quotas()
 	ensure_file "$quotas_dir/bytes" "exist" 600
 	ensure_file "$quotas_dir/reset_interval_ms" "exist" 600
 	test_weights "$quotas_dir/weights"
+	test_goals "$quotas_dir/goals"
 }
 
 test_access_pattern()
_

Patches currently in -mm which might be from sj@kernel.org are

mm-damon-core-copy-nr_accesses-when-splitting-region.patch
mm-damon-sysfs-schemes-add-timeout-for-update_schemes_tried_regions.patch
mm-damon-core-test-test-damon_split_region_ats-access-rate-copying.patch
mm-damon-core-implement-goal-oriented-feedback-driven-quota-auto-tuning.patch
mm-damon-sysfs-schemes-implement-files-for-scheme-quota-goals-setup.patch
mm-damon-sysfs-schemes-commit-damos-quota-goals-user-input-to-damos.patch
mm-damon-sysfs-schemes-implement-a-command-for-scheme-quota-goals-only-commit.patch
mm-damon-core-test-add-a-unit-test-for-the-feedback-loop-algorithm.patch
selftests-damon-test-quota-goals-directory.patch
docs-mm-damon-design-document-damos-quota-auto-tuning.patch
docs-abi-damon-document-damos-quota-goals.patch
docs-admin-guide-mm-damon-usage-document-for-quota-goals.patch