* [merged mm-stable] selftests-damon-_damon_sysfs-implement-damonprobes.patch removed from -mm tree
@ 2026-10-07 0:52 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2026-10-07 0:52 UTC (permalink / raw)
To: mm-commits, shuah, davidgow, brendan.higgins, sj, akpm
The quilt patch titled
Subject: selftests/damon/_damon_sysfs: implement DamonProbes
has been removed from the -mm tree. Its filename was
selftests-damon-_damon_sysfs-implement-damonprobes.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: SJ Park <sj@kernel.org>
Subject: selftests/damon/_damon_sysfs: implement DamonProbes
Date: Wed, 2 Sep 2026 07:03:09 -0700
Extend _damon_sysfs.py to support staging and committing DAMON probes. It
will be used for setting DAMON probes via sysfs changes for testing
purposes.
Link: https://lore.kernel.org/20260902140313.85983-4-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@davidgow.net>
Cc: Shuah Khan <shuah@kernel.org>
---
tools/testing/selftests/damon/_damon_sysfs.py | 125 +++++++++++++++-
1 file changed, 124 insertions(+), 1 deletion(-)
--- a/tools/testing/selftests/damon/_damon_sysfs.py~selftests-damon-_damon_sysfs-implement-damonprobes
+++ a/tools/testing/selftests/damon/_damon_sysfs.py
@@ -570,6 +570,117 @@ class IntervalsGoal:
return err
return None
+class DamonFilter:
+ type_ = None
+ matching = None
+ allow = None
+ filters = None
+ path = None
+ idx = None
+
+ def __init__(self, type_='anon', matching=False, allow=False, path=None):
+ self.type_ = type_
+ self.matching = matching
+ self.allow = allow
+ self.path = path
+
+ def sysfs_dir(self):
+ return os.path.join(self.filters.sysfs_dir(), '%d' % self.idx)
+
+ def stage(self):
+ err = write_file(os.path.join(self.sysfs_dir(), 'type'), self.type_)
+ if err is not None:
+ return err
+ err = write_file(os.path.join(self.sysfs_dir(), 'matching'),
+ 'Y' if self.matching else 'N')
+ if err is not None:
+ return err
+ err = write_file(os.path.join(self.sysfs_dir(), 'allow'),
+ 'Y' if self.allow else 'N')
+ if err is not None:
+ return err
+ if self.type_ == 'memcg':
+ err = write_file(os.path.join(self.sysfs_dir(), 'path'), self.path)
+ if err is not None:
+ return err
+ return None
+
+class DamonFilters:
+ filters = None
+ probe = None
+
+ def __init__(self, filters=None):
+ if filters is None:
+ filters = []
+ self.filters = filters
+ for idx, filter in enumerate(self.filters):
+ filter.filters = self
+ filter.idx = idx
+
+ def sysfs_dir(self):
+ return os.path.join(self.probe.sysfs_dir(), 'filters')
+
+ def stage(self):
+ err = write_file(
+ os.path.join(self.sysfs_dir(), 'nr_filters'),
+ len(self.filters))
+ if err is not None:
+ return err
+ for filter in self.filters:
+ err = filter.stage()
+ if err is not None:
+ return err
+ return None
+
+class DamonProbe:
+ weight = None
+ filters = None
+ probes = None
+ idx = None
+
+ def __init__(self, weight=0, filters=None):
+ self.weight = weight
+ if filters is None:
+ filters = DamonFilters()
+ self.filters = filters
+ self.filters.probe = self
+
+ def sysfs_dir(self):
+ return os.path.join(self.probes.sysfs_dir(), '%d' % self.idx)
+
+ def stage(self):
+ err = write_file(
+ os.path.join(self.sysfs_dir(), 'weight'), '%d' % self.weight)
+ if err is not None:
+ return err
+ return self.filters.stage()
+
+class DamonProbes:
+ probes = None
+ attrs = None
+
+ def __init__(self, probes=None):
+ if probes is None:
+ probes = []
+ self.probes = probes
+ for idx, probe in enumerate(self.probes):
+ probe.probes = self
+ probe.idx = idx
+
+ def sysfs_dir(self):
+ return os.path.join(self.attrs.sysfs_dir(), 'probes')
+
+ def stage(self):
+ err = write_file(os.path.join(self.sysfs_dir(), 'nr_probes'),
+ len(self.probes))
+ if err is not None:
+ return err
+ for probe in self.probes:
+ err = probe.stage()
+ if err is not None:
+ return err
+ return None
+
class DamonAttrs:
sample_us = None
aggr_us = None
@@ -577,11 +688,12 @@ class DamonAttrs:
update_us = None
min_nr_regions = None
max_nr_regions = None
+ probes = None
context = None
def __init__(self, sample_us=5000, aggr_us=100000,
intervals_goal=None, update_us=1000000, min_nr_regions=10,
- max_nr_regions=1000):
+ max_nr_regions=1000, probes=None):
self.sample_us = sample_us
self.aggr_us = aggr_us
if intervals_goal is None:
@@ -591,6 +703,10 @@ class DamonAttrs:
self.update_us = update_us
self.min_nr_regions = min_nr_regions
self.max_nr_regions = max_nr_regions
+ if probes is None:
+ probes = DamonProbes()
+ self.probes = probes
+ self.probes.attrs = self
def interval_sysfs_dir(self):
return os.path.join(self.context.sysfs_dir(), 'monitoring_attrs',
@@ -600,6 +716,9 @@ class DamonAttrs:
return os.path.join(self.context.sysfs_dir(), 'monitoring_attrs',
'nr_regions')
+ def sysfs_dir(self):
+ return os.path.join(self.context.sysfs_dir(), 'monitoring_attrs')
+
def stage(self):
err = write_file(os.path.join(self.interval_sysfs_dir(), 'sample_us'),
self.sample_us)
@@ -629,6 +748,10 @@ class DamonAttrs:
if err is not None:
return err
+ err = self.probes.stage()
+ if err is not None:
+ return err
+
class DamonCtx:
ops = None
monitoring_attrs = None
_
Patches currently in -mm which might be from sj@kernel.org are
mm-damon-core-use-damon_nr_samples_per_aggr-for-max-merge-threshold.patch
mm-damon-core-remove-debug-messages.patch
mm-damon-core-remove-debug-messages-fix.patch
mm-damon-vaddr-remove-a-debug-message.patch
mm-damon-core-validate-number-of-probes-in-valid_probe_params.patch
mm-damon-sysfs-remove-probes-number-validation.patch
mm-damon-tests-core-kunit-extend-set_regions-test-for-error-case.patch
mm-damon-tests-core-kunit-test-=0-size-damon_set_regions-inputs.patch
mm-damon-tests-core-kunit-test-overlapping-ranges-for-set_regions.patch
mm-damon-tests-core-kunit-test-damon_nr_samples_per_aggr.patch
selftests-damon-sysfssh-test-hugepage_mem_bp-quota-goal.patch
docs-mm-damon-maintainer-profile-update-ai-review-for-sashiko-replies.patch
docs-abi-damon-recommend-subsystem-doc-instead-of-admin-guide.patch
mm-damon-core-error-damos_commit_quota_goal-for-zero-target_value.patch
revert-mm-damon-lru_sort-error-out-for-10000-active_mem_bp.patch
revert-samples-damon-mtier-error-out-for-zero-quota-goal-target-values.patch
mm-damon-core-handle-null-ctx-parameter-in-damon_call.patch
mm-damon-core-set-ctx-call_controls_obsolete-in-damon_new_ctx.patch
mm-damon-reclaim-remove-unnecessary-damon_call-param-validation.patch
mm-damon-lru_sort-remove-unnecessary-damon_call-param-validation.patch
mm-damon-vaddr-support-prep_probes.patch
mm-damon-paddr-move-probe-filter-handling-to-ops-common.patch
mm-damon-vaddr-support-apply_probe.patch
mm-damon-vaddr-extend-apply_probes-for-hugetlb.patch
mm-damon-vaddr-support-pgidle_unset-probe-filter-type.patch
mm-damon-api-introduce-damon_filter_type_pgidle_set.patch
mm-damon-paddr-support-damon_filter_type_pgidle_set.patch
mm-damon-vaddr-support-damon_filter_type_pgidle_set.patch
mm-damon-sysfs-support-damon_filter_type_pgidle_set.patch
docs-mm-damon-design-update-for-pgidle_set-probe-filter.patch
mm-damon-api-introduce-damos_filter_type_probe_hits_wsum.patch
mm-damon-api-introduce-damos_filter_type_probe_hits_wsum-fix.patch
mm-damon-core-extend-probe_hits_wsum-for-moving-sum-based-calculation.patch
mm-damon-core-support-probe_hits_wsum-damos-core-filter.patch
mm-damon-sysfs-schemes-rename-sysfs_filter-sz_range-to-range_minmax.patch
mm-damon-sysfs-schemes-support-probe_hits_wsum-damos-core-filter.patch
docs-mm-damon-design-update-for-probe_hits_wsum-damos-core-filter.patch
docs-admin-guide-mm-damon-usage-update-for-probe_hits_wsum-damos-filter.patch
mm-damon-sysfs-schemes-read-sysfs_filter-addr_range-only-once.patch
mm-damon-sysfs-schemes-read-sysfs_filter-sz_range-only-once.patch
mm-damon-core-return-an-error-from-damos_commit_filter_arg.patch
mm-damon-core-disallow-max-min-damos-filter-range-arguments-commit.patch
mm-damon-sysfs-schemes-drop-centralized-filter-range-arg-validations.patch
mm-damon-sysfs-schemes-use-switch-case-in-add_scheme_filters.patch
mm-damon-core-kunit-extend-damos_commit_filter_for-for-wrong-input.patch
mm-damon-core-kunit-test-invalid-damos-filter-commits.patch
mm-damon-api-introduce-damon_filter_type_hugepage_size.patch
mm-damon-core-commit-hugepage_size-type-damon-filter.patch
mm-damon-ops-common-support-hugepage_size-damon-filter-matching.patch
mm-damon-sysfs-add-minmax-files-under-probe-filter-directory.patch
mm-damon-sysfs-support-hugepage_size-probe-filter.patch
docs-mm-damon-design-update-for-hugepage_size-probe-filter.patch
docs-admin-guide-mm-damon-usage-update-for-hugepage_size.patch
docs-abi-damon-update-for-hugepage_size-probe-filter.patch
mm-damon-api-remove-nr_damos_filter_types.patch
mm-damon-core-use-abs_diff-in-damon_feed_loop_next_input.patch
mm-damon-core-use-mult_frac-in-damon_feed_loop_next_input.patch
mm-damon-core-set-damon_ctx-walk_control_obsolete-in-damon_new_ctx.patch
mm-damon-core-document-damon_call-damon_start-race-hang-issue.patch
mm-damon-paddr-remove-pa-parameter-from-damon_pa_filter_pass.patch
mm-damon-tests-core-kunit-test-eligible_mem_bp-commitment.patch
mm-damon-tests-core-kunit-add-probe_hits_wsum-damos-filter-commit-test.patch
selftests-damon-sysfs_memcg_path_leak-fail-only-for-real-damon-leak.patch
docs-mm-damon-design-clarify-bp-is-basis-point.patch
mm-damon-core-introduce-damos_quota_goal-complement.patch
mm-damon-core-add-complement-argument-to-damos_new_quota_goal.patch
mm-damon-sysfs-schemes-support-quota-goal-complement-flag.patch
mm-damon-tests-core-kunit-test-quota_goal-complement-commit.patch
selftests-damon-sysfssh-test-quota-goal-complement-flag-file.patch
docs-mm-damon-design-document-damos-quota-goal-complement-flag.patch
docs-admin-guide-mm-damon-usage-update-for-quota-goal-complement-file.patch
docs-abi-damon-update-for-quota-goal-metric-complement-sysfs-file.patch
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2026-10-07 0:52 [merged mm-stable] selftests-damon-_damon_sysfs-implement-damonprobes.patch removed from -mm tree Andrew Morton
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