* + mm-damon-sysfs-implement-filters-directory.patch added to mm-new branch
@ 2026-05-19 0:55 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2026-05-19 0:55 UTC (permalink / raw)
To: mm-commits, sj, akpm
The patch titled
Subject: mm/damon/sysfs: implement filters directory
has been added to the -mm mm-new branch. Its filename is
mm-damon-sysfs-implement-filters-directory.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-implement-filters-directory.patch
This patch will later appear in the mm-new branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews. Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.
The mm-new branch of mm.git is not included in linux-next
If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days
------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: mm/damon/sysfs: implement filters directory
Date: Mon, 18 May 2026 16:40:59 -0700
Implement a directory for letting users to install data probe filters.
Link: https://lore.kernel.org/20260518234119.97569-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/damon/sysfs.c | 65 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 64 insertions(+), 1 deletion(-)
--- a/mm/damon/sysfs.c~mm-damon-sysfs-implement-filters-directory
+++ a/mm/damon/sysfs.c
@@ -748,11 +748,41 @@ static const struct kobj_type damon_sysf
};
/*
+ * filters directory
+ */
+
+struct damon_sysfs_filters {
+ struct kobject kobj;
+};
+
+static struct damon_sysfs_filters *damon_sysfs_filters_alloc(void)
+{
+ return kzalloc_obj(struct damon_sysfs_filters);
+}
+
+static void damon_sysfs_filters_release(struct kobject *kobj)
+{
+ kfree(container_of(kobj, struct damon_sysfs_filters, kobj));
+}
+
+static struct attribute *damon_sysfs_filters_attrs[] = {
+ NULL,
+};
+ATTRIBUTE_GROUPS(damon_sysfs_filters);
+
+static const struct kobj_type damon_sysfs_filters_ktype = {
+ .release = damon_sysfs_filters_release,
+ .sysfs_ops = &kobj_sysfs_ops,
+ .default_groups = damon_sysfs_filters_groups,
+};
+
+/*
* probe directory
*/
struct damon_sysfs_probe {
struct kobject kobj;
+ struct damon_sysfs_filters *filters;
};
static struct damon_sysfs_probe *damon_sysfs_probe_alloc(void)
@@ -760,6 +790,30 @@ static struct damon_sysfs_probe *damon_s
return kzalloc_obj(struct damon_sysfs_probe);
}
+static int damon_sysfs_probe_add_dirs(struct damon_sysfs_probe *attr)
+{
+ struct damon_sysfs_filters *filters;
+ int err;
+
+ filters = damon_sysfs_filters_alloc();
+ if (!filters)
+ return -ENOMEM;
+ attr->filters = filters;
+
+ err = kobject_init_and_add(&filters->kobj, &damon_sysfs_filters_ktype,
+ &attr->kobj, "filters");
+ if (err) {
+ kobject_put(&filters->kobj);
+ attr->filters = NULL;
+ }
+ return err;
+}
+
+static void damon_sysfs_probe_rm_dirs(struct damon_sysfs_probe *attr)
+{
+ kobject_put(&attr->filters->kobj);
+}
+
static void damon_sysfs_probe_release(struct kobject *kobj)
{
kfree(container_of(kobj, struct damon_sysfs_probe, kobj));
@@ -797,8 +851,10 @@ static void damon_sysfs_probes_rm_dirs(
struct damon_sysfs_probe **probes_arr = probes->probes_arr;
int i;
- for (i = 0; i < probes->nr; i++)
+ for (i = 0; i < probes->nr; i++) {
+ damon_sysfs_probe_rm_dirs(probes_arr[i]);
kobject_put(&probes_arr[i]->kobj);
+ }
probes->nr = 0;
kfree(probes_arr);
probes->probes_arr = NULL;
@@ -833,6 +889,13 @@ static int damon_sysfs_probes_add_dirs(
if (err) {
kobject_put(&probe->kobj);
damon_sysfs_probes_rm_dirs(probes);
+ return err;
+ }
+
+ err = damon_sysfs_probe_add_dirs(probe);
+ if (err) {
+ kobject_put(&probe->kobj);
+ damon_sysfs_probes_rm_dirs(probes);
return err;
}
_
Patches currently in -mm which might be from sj@kernel.org are
mm-damon-sysfs-schemes-delete-tried-region-in-regions_rmdirs.patch
mm-damon-core-make-charge_addr_from-aware-of-end-address-exclusivity.patch
mm-damon-core-handle-min_region_sz-remaining-quota-as-empty.patch
mm-damon-core-merge-regions-after-applying-damos-schemes.patch
mm-damon-core-introduce-failed-region-quota-charge-ratio.patch
mm-damon-sysfs-schemes-implement-fail_charge_numdenom-files.patch
docs-mm-damon-design-document-fail_charge_numdenom.patch
docs-admin-guide-mm-damon-usage-document-fail_charge_numdenom-files.patch
docs-abi-damon-document-fail_charge_numdenom.patch
mm-damon-tests-core-kunit-test-fail_charge_numdenom-committing.patch
selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio.patch
selftests-damon-drgn_dump_damon_status-support-failed-region-quota-charge-ratio.patch
selftests-damon-sysfspy-test-failed-region-quota-charge-ratio.patch
docs-mm-damon-maintainer-profile-add-ai-review-usage-guideline.patch
mm-damon-core-introduce-damon_ctx-paused.patch
mm-damon-sysfs-add-pause-file-under-context-dir.patch
docs-mm-damon-design-update-for-context-pause-resume-feature.patch
docs-admin-guide-mm-damon-usage-update-for-pause-file.patch
docs-abi-damon-update-for-pause-sysfs-file.patch
mm-damon-tests-core-kunit-test-pause-commitment.patch
selftests-damon-_damon_sysfs-support-pause-file-staging.patch
selftests-damon-drgn_dump_damon_status-dump-pause.patch
selftests-damon-sysfspy-check-pause-on-assert_ctx_committed.patch
selftests-damon-sysfspy-pause-damon-before-dumping-status.patch
mm-damon-introduce-damon_set_region_system_rams_default.patch
mm-damon-reclaim-cover-all-system-rams.patch
mm-damon-lru_sort-cover-all-system-rams.patch
mm-damon-core-remove-damon_set_region_biggest_system_ram_default.patch
mm-damon-stat-use-damon_set_region_system_rams_default.patch
docs-admin-guide-mm-damon-reclaim-update-for-entire-memory-monitoring.patch
docs-admin-guide-mm-damon-lru_sort-update-for-entire-memory-monitoring.patch
docs-admin-guide-mm-damon-usage-mark-scheme-filters-sysfs-dir-as-deprecated.patch
docs-abi-damon-mark-schemes-s-filters-deprecated.patch
mm-damon-reclaim-add-autotune_monitoring_intervals-parameter.patch
docs-admin-guide-mm-damon-reclaim-update-for-autotune_monitoring_intervals.patch
mm-damon-stat-add-a-parameter-for-reading-kdamond-pid.patch
docs-admin-guide-mm-damon-stat-document-kdamond_pid-parameter.patch
mm-damon-core-introduce-struct-damon_probe.patch
mm-damon-core-embed-damon_probe-objects-in-damon_ctx.patch
mm-damon-core-introduce-damon_filter.patch
mm-damon-core-commit-probes.patch
mm-damon-core-introduce-damon_region-probe_hits.patch
mm-damon-core-introduce-damon_ops-apply_probes.patch
mm-damon-core-do-data-attributes-monitoring.patch
mm-damon-paddr-support-data-attributes-monitoring.patch
mm-damon-sysfs-implement-probes-dir.patch
mm-damon-sysfs-implement-probe-dir.patch
mm-damon-sysfs-implement-filters-directory.patch
mm-damon-sysfs-implement-filter-dir.patch
mm-damon-sysfs-implement-filter-dir-files.patch
mm-damon-sysfs-setup-probes-on-damon-core-api-parameters.patch
mm-damon-sysfs-schemes-implement-tried_regions-r-probes.patch
mm-damon-sysfs-schemes-implement-probe-dir.patch
mm-damon-sysfs-schemes-implement-probe-hits-file.patch
mm-damon-trace-probe_hits.patch
selftests-damon-sysfssh-test-probes-dir.patch
docs-mm-damon-design-document-data-attributes-monitoring.patch
docs-admin-guide-mm-damon-usage-document-data-attributes-monitoring.patch
mm-damon-core-introduce-damon_filter_type_memcg.patch
mm-damon-paddr-support-damon_filter_type_memcg.patch
mm-damon-sysfs-add-filters-f-path-file.patch
mm-damon-sysfs-schemes-move-memcg_path_to_id-to-sysfs-common.patch
mm-damon-sysfs-setup-damon_filter-memcg_id-from-path.patch
docs-mm-damon-design-update-for-memcg-damon-filter.patch
docs-admin-guide-mm-damon-usage-update-for-memcg-damon-filter.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2026-05-19 0:55 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-05-19 0:55 + mm-damon-sysfs-implement-filters-directory.patch added to mm-new branch Andrew Morton
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.