linux-toradex.git/Documentation/admin-guide/mm/damon, branch master

Docs/admin-guide/mm/damon/usage: clarify current_value of quota goals

2026-06-04T21:45:02+00:00

The sysfs interface for DAMON quota goals includes a `current_value` file.
This file is not updated by the kernel and only serves to receive user
input.

Clarify in the documentation that the kernel does not update
`current_value`, and that reading it only has meaning when `target_metric`
is set to `user_input`.

While at it, fix missing commas in the goal files list.

Link: https://lore.kernel.org/20260521202020.126500-3-maksym.shcherba@lnu.edu.ua
Signed-off-by: Maksym Shcherba 
Reviewed-by: SeongJae Park 
Assisted-by: Antigravity:Gemini-3.1-Pro
Signed-off-by: Andrew Morton

Docs/{ABI,admin-guide}/damon: fix various typoes

2026-06-02T22:22:34+00:00

``damon_target_idx`` was wrongly written as ``target_idx`` in the docs. 
Fix it all over the place, as well as the wrong directory count, grammar,
etc.

Link: https://lore.kernel.org/20260520012104.93602-4-sj@kernel.org
Signed-off-by: SeongJae Park 
Signed-off-by: Zenghui Yu 
Reviewed-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport (Microsoft) 
Cc: niecheng 
Cc: Sakurai Shun 
Cc: Shuah Khan 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/usage: update for memcg damon filter

2026-06-02T22:22:31+00:00

Update DAMON usage document for the newly added belonging memory cgroup
attribute monitoring feature.

Link: https://lore.kernel.org/20260518234119.97569-29-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: "Masami Hiramatsu (Google)" 
Cc: Mathieu Desnoyers 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Shuah Khan 
Cc: Steven Rostedt 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/usage: document data attributes monitoring

2026-06-02T22:22:29+00:00

Update DAMON usage document for the newly added data attributes monitoring
feature.

Link: https://lore.kernel.org/20260518234119.97569-22-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: "Masami Hiramatsu (Google)" 
Cc: Mathieu Desnoyers 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Shuah Khan 
Cc: Steven Rostedt 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/stat: document kdamond_pid parameter

2026-05-29T04:05:08+00:00

Update DAMON_STAT usage document for newly added kdamond_pid parameter.

Link: https://lore.kernel.org/20260502020505.80822-3-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/reclaim: update for autotune_monitoring_intervals

2026-05-29T04:05:07+00:00

Update DAMON_RECLAIM usage document for the newly added monitoring
intervals auto-tuning enablement parameter.

Link: https://lore.kernel.org/20260501011740.81988-3-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/usage: mark scheme filters sysfs dir as deprecated

2026-05-29T04:05:03+00:00

Patch series "mm/damon/sysfs: document filters/ directory as deprecated".

Commit ab71d2d30121 ("mm/damon/sysfs-schemes: let
damon_sysfs_scheme_set_filters() be used for different named directories")
introduced alternatives of 'filters' directory, namely core_filters/ and
'ops_filters/ directories.  Now the alternatives are well stabilized and
ready for all users.  All filters/ directory use cases are expected to be
able to be migrated to the alternatives.  An LTS kernel having the
alternatives, namely 6.18.y, is also released.  Existence of filters/
directory is only confusing.

It would be better not immediately removing the directory, though.  There
could be users that need time before migrating to the alternatives.  There
might be unexpected use cases that the alternatives cannot support.  Doing
the deprecation step by step across multiple years like DAMON debugfs
deprecation would be safer.  Start the deprecation changes by announcing
the deprecation on the documents.

Every year, one more action for completely removing the directory will be
followed, like DAMON debugfs deprecation did.  Following yearly actions
are currently expected.  In 2027, deprecation warning kernel messages will
be printed once, for use of filters/ directory.  In 2028, filters/
directory will be renamed to filters_DEPRECATED/.  In 2029,
filters_DEPRECATED/ directory will be removed.


This patch (of 2):

The alternatives of 'filters/' directory, namely 'core_filters/' and
'ops_filters/', can fully support all the features 'filters/' directory
can do, and provide better user experience.  Having 'filters/' directory
is only confusing to users.  Announce it as deprecated on the usage
document.

Link: https://lore.kernel.org/20260429150309.82282-1-sj@kernel.org
Link: https://lore.kernel.org/20260429150309.82282-2-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/lru_sort: update for entire memory monitoring

2026-05-29T04:05:03+00:00

Update DAMON_LRU_SORT usage document for the changed default monitoring
target region selection.

Link: https://lore.kernel.org/20260429041232.90257-8-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/reclaim: update for entire memory monitoring

2026-05-29T04:05:02+00:00

Update DAMON_RECLAIM usage document for the changed default monitoring
target region selection.

Link: https://lore.kernel.org/20260429041232.90257-7-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

Docs/admin-guide/mm/damon/usage: update for pause file

2026-05-29T04:04:58+00:00

Update DAMON usage document for the DAMON context execution pause/resume
feature.

Link: https://lore.kernel.org/20260427151231.113429-5-sj@kernel.org
Signed-off-by: SeongJae Park 
Cc: Brendan Higgins 
Cc: David Hildenbrand 
Cc: Jonathan Corbet 
Cc: Liam R. Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Shuah Khan 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton