linux-kernel - [RFC PATCH 4/5] Docs/ABI/damon: update for tried_regions/total

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Message-Id: <20230728201817.70602-5-sj@kernel.org>
Date:   Fri, 28 Jul 2023 20:18:16 +0000
From:   SeongJae Park <sj@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     SeongJae Park <sj@...nel.org>, Jonathan Corbet <corbet@....net>,
        damon@...ts.linux.dev, linux-mm@...ck.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [RFC PATCH 4/5] Docs/ABI/damon: update for tried_regions/total_bytes

Update the DAMON ABI document for newly added
schemes/.../tried_regions/total_bytes file and the
update_schemes_tried_bytes command.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 Documentation/ABI/testing/sysfs-kernel-mm-damon | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index 2744f21b5a6b..3d9aaa1cafa9 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -29,8 +29,10 @@ Description:	Writing 'on' or 'off' to this file makes the kdamond starts or
 		file updates contents of schemes stats files of the kdamond.
 		Writing 'update_schemes_tried_regions' to the file updates
 		contents of 'tried_regions' directory of every scheme directory
-		of this kdamond.  Writing 'clear_schemes_tried_regions' to the
-		file removes contents of the 'tried_regions' directory.
+		of this kdamond.  Writing 'update_schemes_tried_bytes' to the
+		file updates only '.../tried_regions/total_bytes' files of this
+		kdamond.  Writing 'clear_schemes_tried_regions' to the file
+		removes contents of the 'tried_regions' directory.
 
 What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/pid
 Date:		Mar 2022
@@ -317,6 +319,13 @@ Contact:	SeongJae Park <sj@...nel.org>
 Description:	Reading this file returns the number of the exceed events of
 		the scheme's quotas.
 
+What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/total_bytes
+Date:		Jul 2023
+Contact:	SeongJae Park <sj@...nel.org>
+Description:	Reading this file returns the total amount of memory that
+		corresponding DAMON-based Operation Scheme's action has tried
+		to be applied.
+
 What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/tried_regions/<R>/start
 Date:		Oct 2022
 Contact:	SeongJae Park <sj@...nel.org>
-- 
2.25.1