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selftests/damon/_damon_sysfs: support DAMOS quota weights setup

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_damon_sysfs.py contains code for test-purpose DAMON sysfs interface
control.  Add support of DAMOS quotas prioritization weights setup for
more tests.

Link: https://lkml.kernel.org/r/20250720171652.92309-5-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 2025-07-20 10:16:34 -07:00 committed by Andrew Morton
parent b436dfaad2
commit ff5aae307b
1 changed files with 23 additions and 1 deletions
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24
tools/testing/selftests/damon/_damon_sysfs.py
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@ -125,12 +125,20 @@ class DamosQuota:
ms = None # time quota
goals = None # quota goals
reset_interval_ms = None # quota reset interval
weight_sz_permil = None
weight_nr_accesses_permil = None
weight_age_permil = None
scheme = None # owner scheme
def __init__(self, sz=0, ms=0, goals=None, reset_interval_ms=0):
def __init__(self, sz=0, ms=0, goals=None, reset_interval_ms=0,
weight_sz_permil=0, weight_nr_accesses_permil=0,
weight_age_permil=0):
self.sz = sz
self.ms = ms
self.reset_interval_ms = reset_interval_ms
self.weight_sz_permil = weight_sz_permil
self.weight_nr_accesses_permil = weight_nr_accesses_permil
self.weight_age_permil = weight_age_permil
self.goals = goals if goals is not None else []
for idx, goal in enumerate(self.goals):
goal.idx = idx
@ -151,6 +159,20 @@ class DamosQuota:
if err is not None:
return err
err = write_file(os.path.join(
self.sysfs_dir(), 'weights', 'sz_permil'), self.weight_sz_permil)
if err is not None:
return err
err = write_file(os.path.join(
self.sysfs_dir(), 'weights', 'nr_accesses_permil'),
self.weight_nr_accesses_permil)
if err is not None:
return err
err = write_file(os.path.join(
self.sysfs_dir(), 'weights', 'age_permil'), self.weight_age_permil)
if err is not None:
return err
nr_goals_file = os.path.join(self.sysfs_dir(), 'goals', 'nr_goals')
content, err = read_file(nr_goals_file)
if err is not None: