linux-kernel - [PATCH 15/22] selftests/damon/sysfs.py: test DAMOS destinations commitment

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Message-Id: <20250720171652.92309-16-sj@kernel.org>
Date: Sun, 20 Jul 2025 10:16:45 -0700
From: SeongJae Park <sj@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: SeongJae Park <sj@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	damon@...ts.linux.dev,
	kernel-team@...a.com,
	linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH 15/22] selftests/damon/sysfs.py: test DAMOS destinations commitment

Current DAMOS commitment assertion is not testing quota destinations
commitment.  Add the test.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 tools/testing/selftests/damon/sysfs.py | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/damon/sysfs.py b/tools/testing/selftests/damon/sysfs.py
index 93f20c5c6780..803f38b61ab3 100755
--- a/tools/testing/selftests/damon/sysfs.py
+++ b/tools/testing/selftests/damon/sysfs.py
@@ -69,6 +69,13 @@ def assert_quota_committed(quota, dump):
     assert_true(
             dump['weight_age'] == quota.weight_age_permil, 'weight_age', dump)
 
+
+def assert_migrate_dests_committed(dests, dump):
+    assert_true(dump['nr_dests'] == len(dests.dests), 'nr_dests', dump)
+    for idx, dest in enumerate(dests.dests):
+        assert_true(dump['node_id_arr'][idx] == dest.id, 'node_id', dump)
+        assert_true(dump['weight_arr'][idx] == dest.weight, 'weight', dump)
+
 def main():
     kdamonds = _damon_sysfs.Kdamonds(
             [_damon_sysfs.Kdamond(
@@ -132,14 +139,8 @@ def main():
     if scheme['target_nid'] != -1:
         fail('damos target nid', status)
 
-    migrate_dests = scheme['migrate_dests']
-    if migrate_dests['nr_dests'] != 0:
-        fail('nr_dests', status)
-    if migrate_dests['node_id_arr'] != []:
-        fail('node_id_arr', status)
-    if migrate_dests['weight_arr'] != []:
-        fail('weight_arr', status)
-
+    assert_migrate_dests_committed(_damon_sysfs.DamosDests(),
+                                   scheme['migrate_dests'])
     assert_quota_committed(_damon_sysfs.DamosQuota(), scheme['quota'])
     assert_watermarks_committed(_damon_sysfs.DamosWatermarks(),
                                 scheme['wmarks'])
-- 
2.39.5