[merged mm-stable] selftests-damon-sysfs-add-obsolete_target-test.patch removed from -mm tree

[merged mm-stable] selftests-damon-sysfs-add-obsolete_target-test.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: selftests/damon/sysfs: add obsolete_target test
has been removed from the -mm tree.  Its filename was
     selftests-damon-sysfs-add-obsolete_target-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: SeongJae Park <sj@kernel.org>
Subject: selftests/damon/sysfs: add obsolete_target test
Date: Wed, 22 Oct 2025 18:25:33 -0700

A new DAMON sysfs file for pin-point target removal, namely
obsolete_target, has been added.  Add a test for the functionality.  It
starts DAMON with three monitoring target processes, mark one in the
middle as obsolete, commit it, and confirm the internal DAMON status is
updated to remove the target in the middle.

Link: https://lkml.kernel.org/r/20251023012535.69625-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Bijan Tabatabai <bijan311@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/damon/sysfs.py |   37 +++++++++++++++++++++++
 1 file changed, 37 insertions(+)

--- a/tools/testing/selftests/damon/sysfs.py~selftests-damon-sysfs-add-obsolete_target-test
+++ a/tools/testing/selftests/damon/sysfs.py
@@ -279,5 +279,42 @@ def main():
 
     kdamonds.stop()
 
+    # test obsolete_target.
+    proc1 = subprocess.Popen(['sh'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    proc2 = subprocess.Popen(['sh'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    proc3 = subprocess.Popen(['sh'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    kdamonds = _damon_sysfs.Kdamonds(
+            [_damon_sysfs.Kdamond(
+                contexts=[_damon_sysfs.DamonCtx(
+                    ops='vaddr',
+                    targets=[
+                        _damon_sysfs.DamonTarget(pid=proc1.pid),
+                        _damon_sysfs.DamonTarget(pid=proc2.pid),
+                        _damon_sysfs.DamonTarget(pid=proc3.pid),
+                        ],
+                    schemes=[_damon_sysfs.Damos()],
+                    )])])
+    err = kdamonds.start()
+    if err is not None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+    kdamonds.kdamonds[0].contexts[0].targets[1].obsolete = True
+    kdamonds.kdamonds[0].commit()
+
+    status, err = dump_damon_status_dict(kdamonds.kdamonds[0].pid)
+    if err is not None:
+        print(err)
+        kdamonds.stop()
+        exit(1)
+
+    del kdamonds.kdamonds[0].contexts[0].targets[1]
+
+    assert_ctxs_committed(kdamonds.kdamonds[0].contexts, status['contexts'])
+
+    kdamonds.stop()
+
 if __name__ == '__main__':
     main()
_

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

mm-damon-tests-core-kunit-remove-dynamic-allocs-on-damos_test_commit_filter.patch
mm-damon-tests-core-kunit-split-out-damos_test_commit_filter-core-logic.patch
mm-damon-tests-core-kunit-extend-damos_test_commit_filter_for-for-union-fields.patch
mm-damon-tests-core-kunit-add-test-cases-to-damos_test_commit_filter.patch
mm-damon-tests-core-kunit-add-damos_commit_quota_goal-test.patch
mm-damon-tests-core-kunit-add-damos_commit_quota_goals-test.patch
mm-damon-tests-core-kunit-add-damos_commit_quota-test.patch
mm-damon-core-pass-migrate_dests-to-damos_commit_dests.patch
mm-damon-tests-core-kunit-add-damos_commit_dests-test.patch
mm-damon-tests-core-kunit-add-damos_commit-test.patch
mm-damon-tests-core-kunit-add-damon_commit_target_regions-test.patch
mm-damon-rename-damos-core-filter-helpers-to-have-word-core.patch
mm-damon-rename-damos-filters-to-damos-core_filters.patch
mm-damon-vaddr-cleanup-using-pmd_trans_huge_lock.patch
mm-damon-vaddr-use-vm_normal_folio_pmd-instead-of-damon_get_folio.patch
mm-damon-vaddr-consistently-use-only-pmd_entry-for-damos_migrate.patch
mm-damon-tests-core-kunit-remove-damon_min_region-redefinition.patch
selftests-damon-sysfspy-merge-damon-status-dumping-into-commitment-assertion.patch
docs-mm-damon-maintainer-profile-fix-a-typo-on-mm-untable-link.patch
docs-mm-damon-maintainer-profile-fix-grammartical-errors.patch