selftests-damon-stop-kdamond-on-error-exits-of-no-op-commit-test.patch removed from -mm tree

The quilt patch titled
Subject: selftests/damon: stop kdamond on error exits of no-op commit test
has been removed from the -mm tree. Its filename was
selftests-damon-stop-kdamond-on-error-exits-of-no-op-commit-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: "Zenghui Yu (Huawei)" <[email protected]>
Subject: selftests/damon: stop kdamond on error exits of no-op commit test
Date: Mon, 14 Sep 2026 07:19:46 -0700

Patch series "mm/damon: misc improvements in tests and documents".

Add various improvements to DAMON tests and documents.

Patch 1 and 2 from Zenghui Yu (Huawei) let DAMON selftest to clean up its state and output after running the tests. Patch 3 from Eva Kurchatova makes a few selftest be able to run with Python's safe path mode. Patch 4 from Kunwu Chan improves coverage of DAMON kunit tests. Finally, patches 5 and 6 from Liew Rui Yan clarify and fix typos on documents for DAMOS quota behaviors.

Below are notes that can be removed in the final commit message.

This is a batched repost of DAMON patches that were individually posted. Please refer to each patch for changelog.

This patch (of 6):

The sysfs_no_op_commit_break test starts a kdamond via sysfs, but its error paths (e.g., drgn not installed) exit without stopping it. The leaked kdamond then makes subsequent tests, e.g. lru_sort.sh and reclaim.sh, skip with "Another kdamond is running".

Wrap the post-start logic in try-finally so that kdamonds.stop() is executed on every exit path.

---

 tools/testing/selftests/damon/sysfs_no_op_commit_break.py |   41 +++++-----
 1 file changed, 21 insertions(+), 20 deletions(-)

@@ -47,26 +47,27 @@ def main():
         print('kdamond start failed: %s' % err)
         exit(1)
 
-    before_commit_status, err = \
-        dump_damon_status_dict(kdamonds.kdamonds[0].pid)
-    if err is not None:
-        print('before-commit status dump failed: %s' % err)
-        exit(1)
-
-    kdamonds.kdamonds[0].commit()
-
-    after_commit_status, err = \
-        dump_damon_status_dict(kdamonds.kdamonds[0].pid)
-    if err is not None:
-        print('after-commit status dump failed: %s' % err)
-        exit(1)
-
-    if before_commit_status != after_commit_status:
-        print(f'before: {json.dumps(before_commit_status, indent=2)}')
-        print(f'after: {json.dumps(after_commit_status, indent=2)}')
-        exit(1)
-
-    kdamonds.stop()
+    try:
+        before_commit_status, err = \
+            dump_damon_status_dict(kdamonds.kdamonds[0].pid)
+        if err is not None:
+            print('before-commit status dump failed: %s' % err)
+            exit(1)
+
+        kdamonds.kdamonds[0].commit()
+
+        after_commit_status, err = \
+            dump_damon_status_dict(kdamonds.kdamonds[0].pid)
+        if err is not None:
+            print('after-commit status dump failed: %s' % err)
+            exit(1)
+
+        if before_commit_status != after_commit_status:
+            print(f'before: {json.dumps(before_commit_status, indent=2)}')
+            print(f'after: {json.dumps(after_commit_status, indent=2)}')
+            exit(1)
+    finally:
+        kdamonds.stop()
 
 if __name__ == '__main__':
     main()

_

Patches currently in -mm which might be from [email protected] are

mm-damon-api-remove-unused-nr_damos_-enumerators.patch selftests-mm-fix-uffd-move-pmd-test-crash-on-64k-base-page-systems.patch