From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 E1919257827 for ; Wed, 7 Oct 2026 00:52:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334348; cv=none; b=EtPz07X9aa2Ls2kIHLxO468wdPi9ysu8wTB4qG2ePDcdb0cw+qF0SjxphZR3J/OnOu710sMTqlJxkTxSEnoyvg66hV111vi/8yIFs/Rayylw23teBh0EGD5HTw3VVtps/z3VzWeqO8gxO36gyPy4ktVwn5zcSQolP15NUBAEIz4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334348; c=relaxed/simple; bh=No2X8pS17FxnOpwQP9FBS1mx8d7pgY6mM2oUos21Z4w=; h=Date:To:From:Subject:Message-Id; b=RJYFJquJUHZ0pmuXS/13hWkJa/8icTCrdlufDZtvURtCnwYAZVfAWxWyuyldg6zZyrhN0ljC3dhiMO/dUdM0HXbF0yaEGRN5nKcL77lDmuj+b1bi71rwp2auqCWoQQJMX1+R36F+mKPUdVOJ4a5ZzksMbZJqVqnO580a557Vhmw= 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=EVcyxsZ5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="EVcyxsZ5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B76D11F0089B; Wed, 7 Oct 2026 00:52:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791334346; bh=8Vr0fz/pSz+H5I+EqWLJnURZTLO9HLaPkPBh92DuczU=; h=Date:To:From:Subject; b=EVcyxsZ5u/6OglUcv0biWCpiEtNpwOBBTmrMz5r9bVhm+uLEoJY4x56uejUZ7hufF MeHa5uGSXP69IHOir5zOCxsKGPxA85B5WJqX2hM7JbGW76KPyELMVnYSaz0Czrke3x aFY6ePdiRLR3Gd4alG5rtAz3pWnpjvOY1MoeKEy4= Date: Tue, 06 Oct 2026 17:52:26 -0700 To: mm-commits@vger.kernel.org,vbabka@kernel.org,surenb@google.com,shuah@kernel.org,rppt@kernel.org,rdunlap@infradead.org,mhocko@suse.com,ljs@kernel.org,liam@infradead.org,david@kernel.org,corbet@lwn.net,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-sysfs-create-directories-for-nr_preps-writes.patch removed from -mm tree Message-Id: <20261007005226.B76D11F0089B@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/damon/sysfs: create directories for nr_preps writes has been removed from the -mm tree. Its filename was mm-damon-sysfs-create-directories-for-nr_preps-writes.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 Subject: mm/damon/sysfs: create directories for nr_preps writes Date: Tue, 1 Sep 2026 06:24:58 -0700 Implement nr_preps write action to actually create subdirectories of the number. Each of the directory will be evolved to represent each probe preparation action. Link: https://lore.kernel.org/20260901132506.99243-12-sj@kernel.org Signed-off-by: SJ Park Signed-off-by: Andrew Morton Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Randy Dunlap Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka --- mm/damon/sysfs.c | 80 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 79 insertions(+), 1 deletion(-) --- a/mm/damon/sysfs.c~mm-damon-sysfs-create-directories-for-nr_preps-writes +++ a/mm/damon/sysfs.c @@ -750,11 +750,49 @@ static const struct kobj_type damon_sysf }; /* + * prep directory + */ + +struct damon_sysfs_prep { + struct kobject kobj; +}; + +static struct damon_sysfs_prep *damon_sysfs_prep_alloc(void) +{ + struct damon_sysfs_prep *prep; + + prep = kzalloc_obj(struct damon_sysfs_prep); + if (!prep) + return prep; + return prep; +} + +static void damon_sysfs_prep_release(struct kobject *kobj) +{ + struct damon_sysfs_prep *prep = container_of(kobj, + struct damon_sysfs_prep, kobj); + + kfree(prep); +} + +static struct attribute *damon_sysfs_prep_attrs[] = { + NULL, +}; +ATTRIBUTE_GROUPS(damon_sysfs_prep); + +static const struct kobj_type damon_sysfs_prep_ktype = { + .release = damon_sysfs_prep_release, + .sysfs_ops = &kobj_sysfs_ops, + .default_groups = damon_sysfs_prep_groups, +}; + +/* * preps directory */ struct damon_sysfs_preps { struct kobject kobj; + struct damon_sysfs_prep **preps_arr; int nr; }; @@ -765,13 +803,53 @@ static struct damon_sysfs_preps *damon_s static void damon_sysfs_preps_rm_dirs(struct damon_sysfs_preps *preps) { + struct damon_sysfs_prep **preps_arr = preps->preps_arr; + int i; + + for (i = 0; i < preps->nr; i++) { + kobject_del(&preps_arr[i]->kobj); + kobject_put(&preps_arr[i]->kobj); + } preps->nr = 0; + kfree(preps_arr); + preps->preps_arr = NULL; } static int damon_sysfs_preps_add_dirs(struct damon_sysfs_preps *preps, int nr_preps) { - preps->nr = nr_preps; + struct damon_sysfs_prep **preps_arr, *prep; + int err, i; + + damon_sysfs_preps_rm_dirs(preps); + if (!nr_preps) + return 0; + + preps_arr = kmalloc_objs(*preps_arr, nr_preps, + GFP_KERNEL | __GFP_NOWARN); + if (!preps_arr) + return -ENOMEM; + preps->preps_arr = preps_arr; + + for (i = 0; i < nr_preps; i++) { + prep = damon_sysfs_prep_alloc(); + if (!prep) { + damon_sysfs_preps_rm_dirs(preps); + return -ENOMEM; + } + + err = kobject_init_and_add(&prep->kobj, + &damon_sysfs_prep_ktype, &preps->kobj, "%d", + i); + if (err) { + kobject_put(&prep->kobj); + damon_sysfs_preps_rm_dirs(preps); + return err; + } + + preps_arr[i] = prep; + preps->nr++; + } return 0; } _ 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