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selftests/damon/_damon_sysfs: implement kdamonds stop function

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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>
This commit is contained in:
SeongJae Park 2024-06-25 11:05:35 -07:00 committed by Andrew Morton
parent c9a3003a35
commit f60636047a
1 changed files with 11 additions and 0 deletions
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11
tools/testing/selftests/damon/_damon_sysfs.py
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@ -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