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[5/9] Docs/admin-guide/mm/damon/usage: document 'DEPRECATED' file of DAMON debugfs interface

Message ID 20240130013549.89538-6-sj@kernel.org (mailing list archive)
State New
Headers show
Series mm/damon: make DAMON debugfs interface deprecation unignorable | expand

Commit Message

SeongJae Park Jan. 30, 2024, 1:35 a.m. UTC 
Document the newly added DAMON debugfs interface deprecation notice file
on the usage document.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 Documentation/admin-guide/mm/damon/usage.rst | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)
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Patch

diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index f2feabb4bd35..5d3df18dfb9f 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -628,9 +628,16 @@  debugfs Interface (DEPRECATED!)
   move, please report your usecase to damon@lists.linux.dev and
   linux-mm@kvack.org.
 
-DAMON exports eight files, ``attrs``, ``target_ids``, ``init_regions``,
-``schemes``, ``monitor_on``, ``kdamond_pid``, ``mk_contexts`` and
-``rm_contexts`` under its debugfs directory, ``<debugfs>/damon/``.
+DAMON exports nine files, ``DEPRECATED``, ``attrs``, ``target_ids``,
+``init_regions``, ``schemes``, ``monitor_on``, ``kdamond_pid``, ``mk_contexts``
+and ``rm_contexts`` under its debugfs directory, ``<debugfs>/damon/``.
+
+
+``DEPRECATED`` is a read-only file for the DAMON debugfs interface deprecation
+notice.  Reading it returns the deprecation notice, as below::
+
+    # cat DEPRECATED
+    DAMON debugfs interface is deprecated, so users should move to DAMON_SYSFS. If you cannot, please report your usecase to damon@lists.linux.dev and linux-mm@kvack.org.
 
 
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