The patch titled
Subject: mm/damon/syfs-schemes: implement per-scheme filter-passed bytes stat
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-syfs-schemes-implement-per-scheme-filter-passed-bytes-stat.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-syfs-schemes-implement-per-scheme-filter-passed-bytes-stat.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/syfs-schemes: implement per-scheme filter-passed bytes stat
Date: Mon, 6 Jan 2025 11:33:53 -0800
Add a new DAMON sysfs interface file under scheme stat directory, namely
'sz_ops_filter_passed'. It represents total bytes that passed
region-internal DAMOS filters of the scheme that handled by the DAMON
operations set layer.
Link: https://lkml.kernel.org/r/20250106193401.109161-9-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/sysfs-schemes.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/mm/damon/sysfs-schemes.c~mm-damon-syfs-schemes-implement-per-scheme-filter-passed-bytes-stat
+++ a/mm/damon/sysfs-schemes.c
@@ -188,6 +188,7 @@ struct damon_sysfs_stats {
unsigned long sz_tried;
unsigned long nr_applied;
unsigned long sz_applied;
+ unsigned long sz_ops_filter_passed;
unsigned long qt_exceeds;
};
@@ -232,6 +233,15 @@ static ssize_t sz_applied_show(struct ko
return sysfs_emit(buf, "%lu\n", stats->sz_applied);
}
+static ssize_t sz_ops_filter_passed_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct damon_sysfs_stats *stats = container_of(kobj,
+ struct damon_sysfs_stats, kobj);
+
+ return sysfs_emit(buf, "%lu\n", stats->sz_ops_filter_passed);
+}
+
static ssize_t qt_exceeds_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
@@ -258,6 +268,9 @@ static struct kobj_attribute damon_sysfs
static struct kobj_attribute damon_sysfs_stats_sz_applied_attr =
__ATTR_RO_MODE(sz_applied, 0400);
+static struct kobj_attribute damon_sysfs_stats_sz_ops_filter_passed_attr =
+ __ATTR_RO_MODE(sz_ops_filter_passed, 0400);
+
static struct kobj_attribute damon_sysfs_stats_qt_exceeds_attr =
__ATTR_RO_MODE(qt_exceeds, 0400);
@@ -266,6 +279,7 @@ static struct attribute *damon_sysfs_sta
&damon_sysfs_stats_sz_tried_attr.attr,
&damon_sysfs_stats_nr_applied_attr.attr,
&damon_sysfs_stats_sz_applied_attr.attr,
+ &damon_sysfs_stats_sz_ops_filter_passed_attr.attr,
&damon_sysfs_stats_qt_exceeds_attr.attr,
NULL,
};
@@ -2077,6 +2091,8 @@ void damon_sysfs_schemes_update_stats(
sysfs_stats->sz_tried = scheme->stat.sz_tried;
sysfs_stats->nr_applied = scheme->stat.nr_applied;
sysfs_stats->sz_applied = scheme->stat.sz_applied;
+ sysfs_stats->sz_ops_filter_passed =
+ scheme->stat.sz_ops_filter_passed;
sysfs_stats->qt_exceeds = scheme->stat.qt_exceeds;
}
}
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
samples-add-a-skeleton-of-a-sample-damon-module-for-working-set-size-estimation.patch
samples-damon-wsse-start-and-stop-damon-as-the-user-requests.patch
samples-damon-wsse-implement-working-set-size-estimation-and-logging.patch
samples-damon-introduce-a-skeleton-of-a-smaple-damon-module-for-proactive-reclamation.patch
samples-damon-prcl-implement-schemes-setup.patch
replace-free-hugepage-folios-after-migration-fix-2.patch
docs-admin-guide-mm-damon-usage-remove-damon-debugfs-interface-documentation.patch
docs-mm-damon-design-update-for-removal-of-damon-debugfs-interface.patch
selftests-damon-config-remove-configs-for-damon-debugfs-interface-selftests.patch
selftests-damon-remove-tests-for-damon-debugfs-interface.patch
kunit-configs-remove-configs-for-damon-debugfs-interface-tests.patch
mm-damon-remove-damon-debugfs-interface-kunit-tests.patch
mm-damon-remove-damon-debugfs-interface.patch
mm-damon-sysfs-schemes-remove-unnecessary-schemes-existence-check-in-damon_sysfs_schemes_clear_regions.patch
mm-damon-sysfs-handle-clear_schemes_tried_regions-from-damon-sysfs-context.patch
mm-damon-core-introduce-damon_call.patch
mm-damon-sysfs-use-damon_call-for-update_schemes_stats.patch
mm-damon-sysfs-use-damon_call-for-commit_schemes_quota_goals.patch
mm-damon-sysfs-use-damon_call-for-update_schemes_effective_quotas.patch
mm-damon-core-implement-damos_walk.patch
docs-mm-damon-design-document-damos-regions-walking.patch
mm-damon-sysfs-use-damos_walk-for-update_schemes_tried_bytesregions.patch
mm-damon-sysfs-remove-unused-code-for-schemes-tried-regions-update.patch
mm-damon-clarify-trying-vs-applying-on-damos_stat-kernel-doc-comment.patch
docs-mm-damon-design-add-statistics-section.patch
docs-admin-guide-mm-damon-usage-link-damos-stat-design-doc.patch
mm-damon-ask-apply_scheme-to-report-filter-passed-region-internal-bytes.patch
mm-damon-paddr-report-filter-passed-bytes-back-for-normal-actions.patch
mm-damon-paddr-report-filter-passed-bytes-back-for-damos_stat-action.patch
mm-damon-core-implement-per-scheme-ops-handled-filter-passed-bytes-stat.patch
mm-damon-syfs-schemes-implement-per-scheme-filter-passed-bytes-stat.patch
docs-mm-damon-design-document-sz_ops_filter_passed.patch
docs-admin-guide-mm-damon-usage-document-sz_ops_filter_passed.patch
docs-abi-damon-document-per-scheme-filter-passed-bytes-stat-file.patch
mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn.patch
mm-damon-sysfs-schemes-expose-per-region-filter-passed-bytes.patch
docs-mm-damon-design-document-per-region-sz_filter_passed-stat.patch
docs-admin-guide-mm-damon-usage-document-sz_filtered_out-of-scheme-tried-region-directories.patch
docs-abi-damon-document-per-region-damos-filter-passed-bytes-stat-file.patch
