Docs/ABI/damon: update for refresh_ms

Document the new DAMON sysfs file, refresh_ms, on the ABI document.

Link: https://lkml.kernel.org/r/20250717055448.56976-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index e98974dfac7a80a5d2985019a3a398945cf51063..6791d879759ea8a4e35c7047ba37098dcc3b9cbc 100644 (file)
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -44,6 +44,13 @@ Contact:     SeongJae Park <sj@kernel.org>
 Description:   Reading this file returns the pid of the kdamond if it is
                running.
 
+What:          /sys/kernel/mm/damon/admin/kdamonds/<K>/refresh_ms
+Date:          Jul 2025
+Contact:       SeongJae Park <sj@kernel.org>
+Description:   Writing a value to this file sets the time interval for
+               automatic DAMON status file contents update.  Writing '0'
+               disables the update.  Reading this file returns the value.
+
 What:          /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/nr_contexts
 Date:          Mar 2022
 Contact:       SeongJae Park <sj@kernel.org>