linux-kernel - [PATCH 13/14] mm/damon/sysfs: remove damon_sysfs_before

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Message-Id: <20250712195016.151108-14-sj@kernel.org>
Date: Sat, 12 Jul 2025 12:50:15 -0700
From: SeongJae Park <sj@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: SeongJae Park <sj@...nel.org>,
	damon@...ts.linux.dev,
	kernel-team@...a.com,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH 13/14] mm/damon/sysfs: remove damon_sysfs_before_terminate()

DAMON core layer does target cleanup on its own.  Remove duplicated and
unnecessarily selective cleanup attempts in DAMON sysfs interface.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 mm/damon/sysfs.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c
index b0f7c60d655a..cce2c8a296e2 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -1361,17 +1361,6 @@ static int damon_sysfs_add_targets(struct damon_ctx *ctx,
 	return 0;
 }
 
-static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
-{
-	struct damon_target *t, *next;
-
-	if (!damon_target_has_pid(ctx))
-		return;
-
-	damon_for_each_target_safe(t, next, ctx)
-		damon_destroy_target(t, ctx);
-}
-
 /*
  * damon_sysfs_upd_schemes_stats() - Update schemes stats sysfs files.
  * @data:	The kobject wrapper that associated to the kdamond thread.
@@ -1516,7 +1505,6 @@ static struct damon_ctx *damon_sysfs_build_ctx(
 		return ERR_PTR(err);
 	}
 
-	ctx->callback.before_terminate = damon_sysfs_before_terminate;
 	return ctx;
 }
 
-- 
2.39.5