The patch titled
Subject: mm/damon/sysfs-schemes: add a file for setting damos_filter->allow
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-sysfs-schemes-add-a-file-for-setting-damos_filter-allow.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-sysfs-schemes-add-a-file-for-setting-damos_filter-allow.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/sysfs-schemes: add a file for setting damos_filter->allow
Date: Thu, 9 Jan 2025 09:51:22 -0800
Only kernel-space DAMON API users can use inclusive DAMOS filters. Add a
sysfs file named 'allow' under DAMOS filter directory of DAMON sysfs
interface, to let the user-space users use inclusive DAMOS filters.
Link: https://lkml.kernel.org/r/20250109175126.57878-7-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 | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
--- a/mm/damon/sysfs-schemes.c~mm-damon-sysfs-schemes-add-a-file-for-setting-damos_filter-allow
+++ a/mm/damon/sysfs-schemes.c
@@ -313,6 +313,7 @@ struct damon_sysfs_scheme_filter {
struct kobject kobj;
enum damos_filter_type type;
bool matching;
+ bool allow;
char *memcg_path;
struct damon_addr_range addr_range;
int target_idx;
@@ -385,6 +386,30 @@ static ssize_t matching_store(struct kob
return count;
}
+static ssize_t allow_show(struct kobject *kobj,
+ struct kobj_attribute *attr, char *buf)
+{
+ struct damon_sysfs_scheme_filter *filter = container_of(kobj,
+ struct damon_sysfs_scheme_filter, kobj);
+
+ return sysfs_emit(buf, "%c\n", filter->allow ? 'Y' : 'N');
+}
+
+static ssize_t allow_store(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t count)
+{
+ struct damon_sysfs_scheme_filter *filter = container_of(kobj,
+ struct damon_sysfs_scheme_filter, kobj);
+ bool allow;
+ int err = kstrtobool(buf, &allow);
+
+ if (err)
+ return err;
+
+ filter->allow = allow;
+ return count;
+}
+
static ssize_t memcg_path_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
@@ -482,6 +507,9 @@ static struct kobj_attribute damon_sysfs
static struct kobj_attribute damon_sysfs_scheme_filter_matching_attr =
__ATTR_RW_MODE(matching, 0600);
+static struct kobj_attribute damon_sysfs_scheme_filter_allow_attr =
+ __ATTR_RW_MODE(allow, 0600);
+
static struct kobj_attribute damon_sysfs_scheme_filter_memcg_path_attr =
__ATTR_RW_MODE(memcg_path, 0600);
@@ -497,6 +525,7 @@ static struct kobj_attribute damon_sysfs
static struct attribute *damon_sysfs_scheme_filter_attrs[] = {
&damon_sysfs_scheme_filter_type_attr.attr,
&damon_sysfs_scheme_filter_matching_attr.attr,
+ &damon_sysfs_scheme_filter_allow_attr.attr,
&damon_sysfs_scheme_filter_memcg_path_attr.attr,
&damon_sysfs_scheme_filter_addr_start_attr.attr,
&damon_sysfs_scheme_filter_addr_end_attr.attr,
@@ -1901,7 +1930,8 @@ static int damon_sysfs_add_scheme_filter
sysfs_filters->filters_arr[i];
struct damos_filter *filter =
damos_new_filter(sysfs_filter->type,
- sysfs_filter->matching, false);
+ sysfs_filter->matching,
+ sysfs_filter->allow);
int err;
if (!filter)
_
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
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
docs-translations-admin-guide-mm-damon-usage-remove-damon-debugfs-interface-documentation.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-fixup-damos_filter-kernel-doc.patch
mm-damon-core-add-damos_filter-allow-field.patch
mm-damon-core-support-damos_filter-allow.patch
mm-damon-paddr-support-damos_filter-allow.patch
mm-damon-add-allow-argument-to-damos_new_filter.patch
mm-damon-sysfs-schemes-add-a-file-for-setting-damos_filter-allow.patch
docs-mm-damon-design-document-allow-reject-damos-filter-behaviors.patch
docs-abi-damon-document-damos-filter-allow-sysfs-file.patch
docs-admin-guide-mm-damon-usage-omit-damos-filter-details-in-favor-of-design-doc.patch
docs-admin-guide-mm-damon-usage-document-damos-filter-allow-sysfs-file.patch
