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Code

selftests/damon/_damon_sysfs: skip testcases if CONFIG_DAMON_SYSFS is disabled

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When CONFIG_DAMON_SYSFS is disabled, the selftests fail with the following
outputs,

not ok 2 selftests: damon: sysfs_update_schemes_tried_regions_wss_estimation.py # exit=1
not ok 3 selftests: damon: damos_quota.py # exit=1
not ok 4 selftests: damon: damos_quota_goal.py # exit=1
not ok 5 selftests: damon: damos_apply_interval.py # exit=1
not ok 6 selftests: damon: damos_tried_regions.py # exit=1
not ok 7 selftests: damon: damon_nr_regions.py # exit=1
not ok 11 selftests: damon: sysfs_update_schemes_tried_regions_hang.py # exit=1

The root cause of this issue is that all the testcases above do not check
the sysfs interface of DAMON whether it exists or not.  With this patch
applied, all the testcases above now pass successfully.

Link: https://lkml.kernel.org/r/20250531093937.1555159-1-lienze@kylinos.cn
Signed-off-by: Enze Li <lienze@kylinos.cn>
Reviewed-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:
Enze Li 2025-05-31 17:39:37 +08:00 committed by Andrew Morton
parent ad6b26b6a0
commit 79509ec1d2
1 changed files with 4 additions and 0 deletions
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4
tools/testing/selftests/damon/_damon_sysfs.py
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@ -15,6 +15,10 @@ if sysfs_root is None:
print('Seems sysfs not mounted?')
exit(ksft_skip)
if not os.path.exists(sysfs_root):
print('Seems DAMON disabled?')
exit(ksft_skip)
def write_file(path, string):
"Returns error string if failed, or None otherwise"
string = '%s' % string