linux-kernel - [RFC PATCH 11/11] Docs/mm/damon/design: document DAMOS_QUOTA_NODE_MEMCG_FREE

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Message-Id: <20250619220023.24023-12-sj@kernel.org>
Date: Thu, 19 Jun 2025 15:00:23 -0700
From: SeongJae Park <sj@...nel.org>
To: 
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jonathan Corbet <corbet@....net>,
	damon@...ts.linux.dev,
	kernel-team@...a.com,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: [RFC PATCH 11/11] Docs/mm/damon/design: document DAMOS_QUOTA_NODE_MEMCG_FREE_BP

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 Documentation/mm/damon/design.rst | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst
index eb6d3b7d0643..6e1f772006d9 100644
--- a/Documentation/mm/damon/design.rst
+++ b/Documentation/mm/damon/design.rst
@@ -571,15 +571,16 @@ mechanism tries to make ``current_value`` of ``target_metric`` be same to
 - ``node_mem_used_bp``: Specific NUMA node's used memory ratio in bp (1/10,000).
 - ``node_mem_free_bp``: Specific NUMA node's free memory ratio in bp (1/10,000).
 - ``node_memcg_used_bp``: Specific cgroup's node used memory ratio for a
+- ``node_memcg_free_bp``: Specific cgroup's node unused memory ratio for a
   specific NUMA node, in bp (1/10,000).
 
 ``nid`` is optionally required for only ``node_mem_used_bp``,
-``node_mem_free_bp`` and ``node_memcg_used_bp`` to point the specific NUMA
-node.
+``node_mem_free_bp``, ``node_memcg_used_bp`` and ``node_memcg_free_bp`` to
+point the specific NUMA node.
 
-``path`` is optionally required for only ``node_memcg_used_bp`` to point the
-path to the cgroup.  The value should be the path of the memory cgroup from the
-cgroups mount point.
+``path`` is optionally required for only ``node_memcg_used_bp`` and
+``node_memcg_free_bp`` to point the path to the cgroup.  The value should be
+the path of the memory cgroup from the cgroups mount point.
 
 To know how user-space can set the tuning goal metric, the target value, and/or
 the current value via :ref:`DAMON sysfs interface <sysfs_interface>`, refer to
-- 
2.39.5