linux-kernel - [PATCH 17/22] selftests/damon/sysfs.py: test DAMOS filters commitment

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Message-Id: <20250720171652.92309-18-sj@kernel.org>
Date: Sun, 20 Jul 2025 10:16:47 -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 17/22] selftests/damon/sysfs.py: test DAMOS filters commitment

Current DAMOS scheme commitment assertion is not testing DAMOS filters.
Add the test.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 tools/testing/selftests/damon/sysfs.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tools/testing/selftests/damon/sysfs.py b/tools/testing/selftests/damon/sysfs.py
index 584a71cbb891..a32871b9b0f2 100755
--- a/tools/testing/selftests/damon/sysfs.py
+++ b/tools/testing/selftests/damon/sysfs.py
@@ -76,6 +76,21 @@ def assert_migrate_dests_committed(dests, dump):
         assert_true(dump['node_id_arr'][idx] == dest.id, 'node_id', dump)
         assert_true(dump['weight_arr'][idx] == dest.weight, 'weight', dump)
 
+def assert_filter_committed(filter_, dump):
+    assert_true(filter_.type_ == dump['type'], 'type', dump)
+    assert_true(filter_.matching == dump['matching'], 'matching', dump)
+    assert_true(filter_.allow == dump['allow'], 'allow', dump)
+    # TODO: check memcg_path and memcg_id if type is memcg
+    if filter_.type_ == 'addr':
+        assert_true([filter_.addr_start, filter_.addr_end] ==
+                    dump['addr_range'], 'addr_range', dump)
+    elif filter_.type_ == 'target':
+        assert_true(filter_.target_idx == dump['target_idx'], 'target_idx',
+                    dump)
+    elif filter_.type_ == 'hugepage_size':
+        assert_true([filter_.min_, filter_.max_] == dump['sz_range'],
+                    'sz_range', dump)
+
 def assert_access_pattern_committed(pattern, dump):
     assert_true(dump['min_sz_region'] == pattern.size[0], 'min_sz_region',
                 dump)
@@ -111,6 +126,11 @@ def assert_scheme_committed(scheme, dump):
     assert_migrate_dests_committed(scheme.dests, dump['migrate_dests'])
     assert_quota_committed(scheme.quota, dump['quota'])
     assert_watermarks_committed(scheme.watermarks, dump['wmarks'])
+    # TODO: test filters directory
+    for idx, f in enumerate(scheme.core_filters.filters):
+        assert_filter_committed(f, dump['filters'][idx])
+    for idx, f in enumerate(scheme.ops_filters.filters):
+        assert_filter_committed(f, dump['ops_filters'][idx])
 
 def main():
     kdamonds = _damon_sysfs.Kdamonds(
-- 
2.39.5