[PATCH 16/20] Docs/ABI/damon: document quota goal metric file

[SeongJae Park]

Update DAMON ABI document for the quota goal target_metric file.

Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-kernel-mm-damon | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index a1e4fdb04f95..dad4d5ffd786 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -229,6 +229,12 @@ Description:	Writing a number 'N' to this file creates the number of
 		directories for setting automatic tuning of the scheme's
 		aggressiveness named '0' to 'N-1' under the goals/ directory.
 
+What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_metric
+Date:		Feb 2024
+Contact:	SeongJae Park <sj@xxxxxxxxxx>
+Description:	Writing to and reading from this file sets and gets the quota
+		auto-tuning goal metric.
+
 What:		/sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_value
 Date:		Nov 2023
 Contact:	SeongJae Park <sj@xxxxxxxxxx>
-- 
2.39.2