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From: Zenghui Yu <zenghui.yu@linux.dev>
To: damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: sj@kernel.org, akpm@linux-foundation.org,
	"Zenghui Yu (Huawei)" <zenghui.yu@linux.dev>
Subject: [PATCH] mm/damon/api: remove unused NR_DAMOS_* enumerators
Date: Sun, 20 Sep 2026 09:20:28 +0800	[thread overview]
Message-ID: <20260920012028.9565-1-zenghui.yu@linux.dev> (raw)

From: "Zenghui Yu (Huawei)" <zenghui.yu@linux.dev>

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.

Signed-off-by: Zenghui Yu (Huawei) <zenghui.yu@linux.dev>
---
 include/linux/damon.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 836353c4ab9a..6258ef8be764 100644
--- a/include/linux/damon.h
+++ b/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,
 };
 
 /**
-- 
2.53.0


             reply	other threads:[~2026-09-20  1:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-20  1:20 Zenghui Yu [this message]
2026-09-20 10:00 ` SJ Park
2026-09-20 12:34   ` Zenghui Yu
2026-09-20 13:12     ` SJ Park

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