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 CBBD1313523 for ; Wed, 7 Oct 2026 00:52:25 +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=1791334347; cv=none; b=H5lg7DMsRizl5e6oSluIphy6lpMXSTEnXbOt71LwvCK6xhcxtgjhEHKH3H+OXw3oKjMym1xgVOL3PAioCtz5YMb0hgAkNaTISPvQ3nU8E1RA6M9GB08umM5JqR1PBlMcRoEnJll87zIc8sxocBluz4l7A7PxbYXIJYZe6kpsCfA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334347; c=relaxed/simple; bh=qewKRTLI1UN/tdAYVRJeaYY3arx6gFl/Wp53khz2KAk=; h=Date:To:From:Subject:Message-Id; b=jw1qhLOx35TkL+qj4S1x1JikD7K2VD0hJHLHzOIv1/D/yV1m2hR71bFRl65VmU2Hr0OfE0gQTT2B7hRK/WiA63gBuyboFpH2fkHvl0ns1xLR0PEQ6Pz1PoTPj9OHZB3AYrafFHD3dJmRr7ZPv6Z9eGyM2Az5Rep5DwJxBbTXFeE= 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=nyEKEDnC; 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="nyEKEDnC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1BC31F0089C; Wed, 7 Oct 2026 00:52:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791334345; bh=iO9OHqdAt9r161EfHC1VH4xm5jsIFrHQatwtPL6oPBA=; h=Date:To:From:Subject; b=nyEKEDnCnRQm2ZA0lPlbSAJkjBLdev1ZggZyCriQ7U22GEzGRpmNBkJZJyS6ynXWB fx3k+YhphFuj5VhOZLU27sKaL6QgrTaAqGHrBKPFV1iXTT06ATvZBGnvlTN7q/RiAZ 5pHJsLjeshCeOK7/RYN3nO7KjaLSwm89Q+WWZ9/Q= Date: Tue, 06 Oct 2026 17:52:25 -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-implement-preps-nr_preps-file.patch removed from -mm tree Message-Id: <20261007005225.A1BC31F0089C@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: implement preps/nr_preps file has been removed from the -mm tree. Its filename was mm-damon-sysfs-implement-preps-nr_preps-file.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: implement preps/nr_preps file Date: Tue, 1 Sep 2026 06:24:57 -0700 Implement nr_preps file under the preps directory. It will be evolved to be used for generating sub directories that will represent each probe preparation action. Link: https://lore.kernel.org/20260901132506.99243-11-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 | 53 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) --- a/mm/damon/sysfs.c~mm-damon-sysfs-implement-preps-nr_preps-file +++ a/mm/damon/sysfs.c @@ -755,6 +755,7 @@ static const struct kobj_type damon_sysf struct damon_sysfs_preps { struct kobject kobj; + int nr; }; static struct damon_sysfs_preps *damon_sysfs_preps_alloc(void) @@ -762,12 +763,60 @@ static struct damon_sysfs_preps *damon_s return kzalloc_obj(struct damon_sysfs_preps); } +static void damon_sysfs_preps_rm_dirs(struct damon_sysfs_preps *preps) +{ + preps->nr = 0; +} + +static int damon_sysfs_preps_add_dirs(struct damon_sysfs_preps *preps, + int nr_preps) +{ + preps->nr = nr_preps; + return 0; +} + +static ssize_t nr_preps_show(struct kobject *kobj, struct kobj_attribute *attr, + char *buf) +{ + struct damon_sysfs_preps *preps = container_of(kobj, + struct damon_sysfs_preps, kobj); + + return sysfs_emit(buf, "%d\n", preps->nr); +} + +static ssize_t nr_preps_store(struct kobject *kobj, + struct kobj_attribute *attr, const char *buf, size_t count) +{ + struct damon_sysfs_preps *preps; + int nr, err = kstrtoint(buf, 0, &nr); + + if (err) + return err; + if (nr < 0) + return -EINVAL; + + preps = container_of(kobj, struct damon_sysfs_preps, kobj); + + if (!mutex_trylock(&damon_sysfs_lock)) + return -EBUSY; + err = damon_sysfs_preps_add_dirs(preps, nr); + mutex_unlock(&damon_sysfs_lock); + if (err) + return err; + + return count; +} + static void damon_sysfs_preps_release(struct kobject *kobj) { kfree(container_of(kobj, struct damon_sysfs_preps, kobj)); } +static struct kobj_attribute damon_sysfs_preps_nr_attr = + __ATTR_RW_MODE(nr_preps, 0600); + static struct attribute *damon_sysfs_preps_attrs[] = { + &damon_sysfs_preps_nr_attr.attr, NULL, }; ATTRIBUTE_GROUPS(damon_sysfs_preps); @@ -1149,8 +1198,10 @@ put_preps_out: static void damon_sysfs_probe_rm_dirs(struct damon_sysfs_probe *probe) { - if (probe->preps) + if (probe->preps) { + damon_sysfs_preps_rm_dirs(probe->preps); kobject_put(&probe->preps->kobj); + } if (probe->filters) { damon_sysfs_filters_rm_dirs(probe->filters); kobject_put(&probe->filters->kobj); _ 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