+ selftests-damon-_damon_sysfs-implement-kdamonds-stop-function.patch added to mm-unstable branch

+ selftests-damon-_damon_sysfs-implement-kdamonds-stop-function.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: selftests/damon/_damon_sysfs: implement kdamonds stop function
has been added to the -mm mm-unstable branch.  Its filename is
     selftests-damon-_damon_sysfs-implement-kdamonds-stop-function.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-_damon_sysfs-implement-kdamonds-stop-function.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/_damon_sysfs: implement kdamonds stop function
Date: Tue, 25 Jun 2024 11:05:35 -0700

Implement DAMON stop function on the test-purpose DAMON sysfs interface
wrapper Python module, _damon_sysfs.py.  This feature will be used by
future DAMON tests that need to start/stop DAMON multiple times.

Link: https://lkml.kernel.org/r/20240625180538.73134-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/damon/_damon_sysfs.py |   11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/tools/testing/selftests/damon/_damon_sysfs.py~selftests-damon-_damon_sysfs-implement-kdamonds-stop-function
+++ a/tools/testing/selftests/damon/_damon_sysfs.py
@@ -406,6 +406,10 @@ class Kdamond:
         err = write_file(os.path.join(self.sysfs_dir(), 'state'), 'on')
         return err
 
+    def stop(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'), 'off')
+        return err
+
     def update_schemes_tried_regions(self):
         err = write_file(os.path.join(self.sysfs_dir(), 'state'),
                          'update_schemes_tried_regions')
@@ -511,3 +515,10 @@ class Kdamonds:
             if err is not None:
                 return err
         return None
+
+    def stop(self):
+        for kdamond in self.kdamonds:
+            err = kdamond.stop()
+            if err is not None:
+                return err
+        return None
_

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

mm-damon-core-merge-regions-aggressively-when-max_nr_regions-is-unmet.patch
docs-mm-damon-maintainer-profile-introduce-hackermail.patch
docs-mm-damon-maintainer-profile-document-damon-community-meetups.patch
selftests-damon-access_memory-use-user-defined-region-size.patch
selftests-damon-_damon_sysfs-support-schemes_update_tried_regions.patch
selftests-damon-implement-a-program-for-even-numbered-memory-regions-access.patch
selftests-damon-implement-damos-tried-regions-test.patch
selftests-damon-_damon_sysfs-implement-kdamonds-stop-function.patch
selftests-damon-implement-test-for-min-max_nr_regions.patch
_damon_sysfs-implement-commit-for-online-parameters-update.patch
selftests-damon-damon_nr_regions-test-online-tuned-max_nr_regions.patch