[PATCH 10/12] Docs/admin-guide/mm/damon/usage: update for max_nr_snapshots

SeongJae Park
2025-12-16T08:02:02Z

Update DAMON usage document for the newly added DAMON sysfs interface
file, max_nr_snapshots.

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

diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index d0944bd78964..7da4c002cb39 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -87,7 +87,7 @@ comma (",").
│ │ │ │ │ │ │ │ 0/type,matching,allow,memcg_path,addr_start,addr_end,target_idx,min,max
│ │ │ │ │ │ │ :ref:`dests <damon_sysfs_dests>`/nr_dests
│ │ │ │ │ │ │ │ 0/id,weight
- │ │ │ │ │ │ │ :ref:`stats <sysfs_schemes_stats>`/nr_tried,sz_tried,nr_applied,sz_applied,sz_ops_filter_passed,qt_exceeds,nr_snapshots
+ │ │ │ │ │ │ │ :ref:`stats <sysfs_schemes_stats>`/nr_tried,sz_tried,nr_applied,sz_applied,sz_ops_filter_passed,qt_exceeds,nr_snapshots,max_nr_snapshots
│ │ │ │ │ │ │ :ref:`tried_regions <sysfs_schemes_tried_regions>`/total_bytes
│ │ │ │ │ │ │ │ 0/start,end,nr_accesses,age,sz_filter_passed
│ │ │ │ │ │ │ │ ...
@@ -543,10 +543,11 @@ online analysis or tuning of the schemes. Refer to :ref:`design doc

The statistics can be retrieved by reading the files under ``stats`` directory
(``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``,
-``sz_ops_filter_passed``, ``qt_exceeds`` and ``nr_snapshots``), respectively.
-The files are not updated in real time, so you should ask DAMON sysfs interface
-to update the content of the files for the stats by writing a special keyword,
-``update_schemes_stats`` to the relevant ``kdamonds/<N>/state`` file.
+``sz_ops_filter_passed``, ``qt_exceeds``, ``nr_snapshots`` and
+``max_nr_snapshots``), respectively. The files are not updated in real time,
+so you should ask DAMON sysfs interface to update the content of the files for
+the stats by writing a special keyword, ``update_schemes_stats`` to the
+relevant ``kdamonds/<N>/state`` file.

.. _sysfs_schemes_tried_regions:

--
2.47.3