From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 57ABE278156 for ; Tue, 19 May 2026 00:55:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779152130; cv=none; b=GbcAeQum2wfOOVRXywAYCfw9vqOpx7BjU2B23qCp8UdX/TlSFoV+kVkOxyoG0Mxv17GgHVohlkfTZ/64WTIrSln/jHu2iqlltnF0PzZ/PBUTg93I7f5GgZGJiRAXhEBku9bPayw45v3kyyGAAwbLePGl7R7vL8yvoE9NpOB/o64= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779152130; c=relaxed/simple; bh=tx1BkRg6FIVxJeTuyvHy+OpOQW/Xf09STwh2/rn92JU=; h=Date:To:From:Subject:Message-Id; b=PksA437vGi245M27u93UKxNm80hqijWM3yyhHG2p5him0znKO4qJLI7TUmG61MyljjQyzLQIFVWPoxZ96rpZHIFuKOTwLue0mkk5roW5A8A1I0xA2l+VS7RBPPa5Yf9JlwqW+u5yZ3P6PToC5cU1rB0hQQ+8e9HmnAhUaEkx+ZE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Oea0G6/e; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Oea0G6/e" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27417C2BCB7; Tue, 19 May 2026 00:55:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1779152130; bh=tx1BkRg6FIVxJeTuyvHy+OpOQW/Xf09STwh2/rn92JU=; h=Date:To:From:Subject:From; b=Oea0G6/eyvEWDQDHbsbR4ogTKqM0m8exoEmqgFMQ0A7k6/1Yy20sBC6aUUHDVG7RT 3a1Pp6VuklSffzkTkds/xhJ8F5TKh5QZqvPo2uQPRbzOxEZ4Qd5eXp0l7lfxfBmX/0 J+QqEKh63H3evhgGKa2ahJpJ49GaqVuLbMBAtNqU= Date: Mon, 18 May 2026 17:55:29 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-sysfs-implement-filters-directory.patch added to mm-new branch Message-Id: <20260519005530.27417C2BCB7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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 Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: "Masami Hiramatsu (Google)" Cc: Mathieu Desnoyers Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Steven Rostedt Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- 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