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Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 09/10] Docs/admin-guide/mm/damon/usage: document DAMOS quota goal path file Date: Fri, 17 Oct 2025 14:27:01 -0700 Message-ID: <20251017212706.183502-10-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251017212706.183502-1-sj@kernel.org> References: <20251017212706.183502-1-sj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam01 X-Stat-Signature: ractrsg1pzfcynthfm3w4d7dqkf18kz3 X-Rspam-User: X-Rspamd-Queue-Id: DCDA7180013 X-HE-Tag: 1760736436-507749 X-HE-Meta: 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 /V+34gq4 ePx8EE7e5XTFk0/cIu/YSf4dHzyi/R9C9p9TU2rZT/+5jQZ08uZMSFki15SbJPTQBwRG0mbLq7H4lq4b3gXDLRm+sBItttl0LBvCXGMKumLd3BsE04ZEXSOtryGGBIa4cEfz85lIKH92lXdSDCFkta7yC4M9dbJxnpG5lqkm6ryObs9Odo3DYVTQEqmUAw1dgSdRQQHrBqY6G/yijFqx/Bwg94FK6It9+YImmLwNmprD6XqNRKuQLpC8MQb1Jss6Z2lcyP4ZTfzxVkMgDERV2nDQGZIKomM3tZMm5Rr6RSQRK1Bn+cHVurk+n6Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: A new DAMON sysfs interface file, namely 'path' has been added under DAMOS quota goal directory, for specifying the cgroup for DAMOS_QUOTA_NODE_MEMCG_{USED,FREE}_BP metrics. Document it on the usage document. Signed-off-by: SeongJae Park --- Documentation/admin-guide/mm/damon/usage.rst | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst index eae534bc1bee..98958975604d 100644 --- a/Documentation/admin-guide/mm/damon/usage.rst +++ b/Documentation/admin-guide/mm/damon/usage.rst @@ -81,7 +81,7 @@ comma (","). │ │ │ │ │ │ │ :ref:`quotas `/ms,bytes,reset_interval_ms,effective_bytes │ │ │ │ │ │ │ │ weights/sz_permil,nr_accesses_permil,age_permil │ │ │ │ │ │ │ │ :ref:`goals `/nr_goals - │ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid + │ │ │ │ │ │ │ │ │ 0/target_metric,target_value,current_value,nid,path │ │ │ │ │ │ │ :ref:`watermarks `/metric,interval_us,high,mid,low │ │ │ │ │ │ │ :ref:`{core_,ops_,}filters `/nr_filters │ │ │ │ │ │ │ │ 0/type,matching,allow,memcg_path,addr_start,addr_end,target_idx,min,max @@ -402,9 +402,9 @@ number (``N``) to the file creates the number of child directories named ``0`` to ``N-1``. Each directory represents each goal and current achievement. Among the multiple feedback, the best one is used. -Each goal directory contains four files, namely ``target_metric``, -``target_value``, ``current_value`` and ``nid``. Users can set and get the -four parameters for the quota auto-tuning goals that specified on the +Each goal directory contains five files, namely ``target_metric``, +``target_value``, ``current_value`` ``nid`` and ``path``. Users can set and +get the five parameters for the quota auto-tuning goals that specified on the :ref:`design doc ` by writing to and reading from each of the files. Note that users should further write ``commit_schemes_quota_goals`` to the ``state`` file of the :ref:`kdamond -- 2.47.3