* [merged mm-stable] selftests-damon-drgn_dump_damon_status-dump-damos-filters.patch removed from -mm tree
@ 2025-07-26 22:10 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2025-07-26 22:10 UTC (permalink / raw)
To: mm-commits, shuah, sj, akpm
The quilt patch titled
Subject: selftests/damon/drgn_dump_damon_status: dump DAMOS filters
has been removed from the -mm tree. Its filename was
selftests-damon-drgn_dump_damon_status-dump-damos-filters.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: selftests/damon/drgn_dump_damon_status: dump DAMOS filters
Date: Sun, 20 Jul 2025 10:16:41 -0700
drgn_dump_damon_status.py is a script for dumping DAMON internal status in
json format. It is being used for seeing if DAMON parameters that are set
using _damon_sysfs.py are actually passed to DAMON in the kernel space.
It is, however, not dumping full DAMON internal status, and it makes
increasing test coverage difficult. Add damos filters dumping for more
tests.
Link: https://lkml.kernel.org/r/20250720171652.92309-12-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/drgn_dump_damon_status.py | 43 +++++++++-
1 file changed, 42 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/damon/drgn_dump_damon_status.py~selftests-damon-drgn_dump_damon_status-dump-damos-filters
+++ a/tools/testing/selftests/damon/drgn_dump_damon_status.py
@@ -135,8 +135,37 @@ def damos_migrate_dests_to_dict(dests):
'nr_dests': nr_dests,
}
+def damos_filter_to_dict(damos_filter):
+ filter_type_keyword = {
+ 0: 'anon',
+ 1: 'active',
+ 2: 'memcg',
+ 3: 'young',
+ 4: 'hugepage_size',
+ 5: 'unmapped',
+ 6: 'addr',
+ 7: 'target'
+ }
+ dict_ = {
+ 'type': filter_type_keyword[int(damos_filter.type)],
+ 'matching': bool(damos_filter.matching),
+ 'allow': bool(damos_filter.allow),
+ }
+ type_ = dict_['type']
+ if type_ == 'memcg':
+ dict_['memcg_id'] = int(damos_filter.memcg_id)
+ elif type_ == 'addr':
+ dict_['addr_range'] = [int(damos_filter.addr_range.start),
+ int(damos_filter.addr_range.end)]
+ elif type_ == 'target':
+ dict_['target_idx'] = int(damos_filter.target_idx)
+ elif type_ == 'hugeapge_size':
+ dict_['sz_range'] = [int(damos_filter.sz_range.min),
+ int(damos_filter.sz_range.max)]
+ return dict_
+
def scheme_to_dict(scheme):
- return to_dict(scheme, [
+ dict_ = to_dict(scheme, [
['pattern', damos_access_pattern_to_dict],
['action', int],
['apply_interval_us', int],
@@ -145,6 +174,18 @@ def scheme_to_dict(scheme):
['target_nid', int],
['migrate_dests', damos_migrate_dests_to_dict],
])
+ filters = []
+ for f in list_for_each_entry(
+ 'struct damos_filter', scheme.filters.address_of_(), 'list'):
+ filters.append(damos_filter_to_dict(f))
+ dict_['filters'] = filters
+ ops_filters = []
+ for f in list_for_each_entry(
+ 'struct damos_filter', scheme.ops_filters.address_of_(), 'list'):
+ ops_filters.append(damos_filter_to_dict(f))
+ dict_['ops_filters'] = ops_filters
+
+ return dict_
def schemes_to_list(schemes):
return [scheme_to_dict(s)
_
Patches currently in -mm which might be from sj@kernel.org are
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2025-07-26 22:10 [merged mm-stable] selftests-damon-drgn_dump_damon_status-dump-damos-filters.patch removed from -mm tree Andrew Morton
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