[merged mm-stable] mm-damon-api-remove-unused-nr_damos_-enumerators.patch removed from -mm tree

[merged mm-stable] mm-damon-api-remove-unused-nr_damos_-enumerators.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/damon/api: remove unused NR_DAMOS_* enumerators
has been removed from the -mm tree.  Its filename was
     mm-damon-api-remove-unused-nr_damos_-enumerators.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: "Zenghui Yu (Huawei)" <zenghui.yu@linux.dev>
Subject: mm/damon/api: remove unused NR_DAMOS_* enumerators
Date: Mon, 28 Sep 2026 01:39:55 -0700

Patch series "mm/damon/core: cleanup code, reduce stack usage, and add
kunit".

Three various improvements.  Patch 1 from Zenghui Yu (Huawei) cleans up
unused enums.  Patch 2 from Arnd Bergmann reduces kdamond's stack usage. 
Patch 3 from Karl Mehltretter adds a kunit test for uninitialized PSI
quota goal stage logic.


This patch (of 3):

NR_DAMOS_ACTIONS, NR_DAMOS_QUOTA_GOAL_METRICS, and NR_DAMOS_WMARK_METRICS
are not referenced by any code.  Remove them.

They can be reintroduced if a real user comes up.

Link: https://lore.kernel.org/20260928083959.4030-1-sj@kernel.org
Link: https://lore.kernel.org/20260928083959.4030-2-sj@kernel.org
Signed-off-by: Zenghui Yu (Huawei) <zenghui.yu@linux.dev>
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SJ Park <sj@kernel.org>
---

 include/linux/damon.h |    8 --------
 1 file changed, 8 deletions(-)

--- a/include/linux/damon.h~mm-damon-api-remove-unused-nr_damos_-enumerators
+++ a/include/linux/damon.h
@@ -117,7 +117,6 @@ struct damon_target {
  * @DAMOS_MIGRATE_HOT:  Migrate the regions prioritizing warmer regions.
  * @DAMOS_MIGRATE_COLD:	Migrate the regions prioritizing colder regions.
  * @DAMOS_STAT:		Do nothing but count the stat.
- * @NR_DAMOS_ACTIONS:	Total number of DAMOS actions
  *
  * The support of each action is up to running &struct damon_operations.
  * Refer to 'Operation Action' section of Documentation/mm/damon/design.rst for
@@ -137,7 +136,6 @@ enum damos_action {
 	DAMOS_MIGRATE_HOT,
 	DAMOS_MIGRATE_COLD,
 	DAMOS_STAT,		/* Do nothing but only record the stat */
-	NR_DAMOS_ACTIONS,
 };
 
 /**
@@ -154,9 +152,6 @@ enum damos_action {
  * @DAMOS_QUOTA_NODE_ELIGIBLE_MEM_BP:	Scheme-eligible memory ratio of a
  *					node in basis points (0-10000).
  * @DAMOS_QUOTA_HUGEPAGE_MEM_BP:	Huge page to total used memory ratio.
- * @NR_DAMOS_QUOTA_GOAL_METRICS:	Number of DAMOS quota goal metrics.
- *
- * Metrics equal to larger than @NR_DAMOS_QUOTA_GOAL_METRICS are unsupported.
  */
 enum damos_quota_goal_metric {
 	DAMOS_QUOTA_USER_INPUT,
@@ -169,7 +164,6 @@ enum damos_quota_goal_metric {
 	DAMOS_QUOTA_INACTIVE_MEM_BP,
 	DAMOS_QUOTA_NODE_ELIGIBLE_MEM_BP,
 	DAMOS_QUOTA_HUGEPAGE_MEM_BP,
-	NR_DAMOS_QUOTA_GOAL_METRICS,
 };
 
 /**
@@ -313,12 +307,10 @@ struct damos_quota {
  *
  * @DAMOS_WMARK_NONE:		Ignore the watermarks of the given scheme.
  * @DAMOS_WMARK_FREE_MEM_RATE:	Free memory rate of the system in [0,1000].
- * @NR_DAMOS_WMARK_METRICS:	Total number of DAMOS watermark metrics
  */
 enum damos_wmark_metric {
 	DAMOS_WMARK_NONE,
 	DAMOS_WMARK_FREE_MEM_RATE,
-	NR_DAMOS_WMARK_METRICS,
 };
 
 /**
_

Patches currently in -mm which might be from zenghui.yu@linux.dev are

mm-page_alloc-mark-pages-freed-by-__free_pages_core-as-not-tagged.patch