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selftests/damon/_damon_sysfs: read tried regions directories in order

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Kdamond.update_schemes_tried_regions() reads and stores tried regions
information out of address order.  It makes debugging a test failure
difficult.  Change the behavior to do the reading and writing in the
address order.

Link: https://lkml.kernel.org/r/20250513002715.40126-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2025-05-12 17:27:14 -07:00
committed by Andrew Morton
parent 094fb14913
commit 03f83209e8
1 changed files with 5 additions and 0 deletions
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5
tools/testing/selftests/damon/_damon_sysfs.py
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@@ -420,11 +420,16 @@ class Kdamond:
tried_regions = []
tried_regions_dir = os.path.join(
scheme.sysfs_dir(), 'tried_regions')
region_indices = []
for filename in os.listdir(
os.path.join(scheme.sysfs_dir(), 'tried_regions')):
tried_region_dir = os.path.join(tried_regions_dir, filename)
if not os.path.isdir(tried_region_dir):
continue
region_indices.append(int(filename))
for region_idx in sorted(region_indices):
tried_region_dir = os.path.join(tried_regions_dir,
'%d' % region_idx)
region_values = []
for f in ['start', 'end', 'nr_accesses', 'age']:
content, err = read_file(