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From: SeongJae Park <sj@kernel.org>
Cc: SeongJae Park <sj@kernel.org>,
	"# 6 . 17 . x" <stable@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	damon@lists.linux.dev, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org
Subject: [RFC PATCH v1.2 07/11] mm/damon/sysfs-schemes: kobject_del() scheme action destination dirs
Date: Thu, 18 Jun 2026 08:15:11 -0700	[thread overview]
Message-ID: <20260618151517.5366-8-sj@kernel.org> (raw)
In-Reply-To: <20260618151517.5366-1-sj@kernel.org>

On CONFIG_DEBUG_KOBJECT_RELEASE enabled kernel, lack of kobject_del()
could cause directories creation failures due to the name conflicts. Fix
those issues for scheme action destination directories by adding
kobject_del() calls.

Fixes: 2cd0bf85a203 ("mm/damon/sysfs-schemes: implement DAMOS action destinations directory")
Cc: <stable@vger.kernel.org> # 6.17.x
Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/sysfs-schemes.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 306c1d3d357c4..0d4e9b053e381 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -2145,8 +2145,10 @@ static void damos_sysfs_dests_rm_dirs(
 	struct damos_sysfs_dest **dests_arr = dests->dests_arr;
 	int i;
 
-	for (i = 0; i < dests->nr; i++)
+	for (i = 0; i < dests->nr; i++) {
+		kobject_del(&dests_arr[i]->kobj);
 		kobject_put(&dests_arr[i]->kobj);
+	}
 	dests->nr = 0;
 	kfree(dests_arr);
 	dests->dests_arr = NULL;
-- 
2.47.3

  parent reply	other threads:[~2026-06-18 15:15 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-18 15:15 [RFC PATCH v1.2 00/11] mm/damon/sysfs: kobject_del() directories that users can create/remove SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 01/11] mm/damon/sysfs: kobject_del() target (normal), context and kdamond dirs SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 02/11] mm/damon/sysfs: kobject_del() region and target (error) dirs SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 03/11] mm/damon/sysfs-schemes: kobject_del() scheme dirs SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 04/11] mm/damon/sysfs-schemes: kobject_del() scheme region dirs SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 05/11] mm/damon/sysfs-schemes: kobject_del() scheme filter dirs SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 06/11] mm/damon/sysfs-schemes: kobject_del() scheme quota goal dirs SeongJae Park
2026-06-18 15:15 ` SeongJae Park [this message]
2026-06-18 15:15 ` [RFC PATCH v1.2 08/11] mm/damon/sysfs: kobject_del() probe dirs SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 09/11] mm/damon/sysfs: kobject_del() probe filter dirs SeongJae Park
2026-06-18 15:34   ` sashiko-bot
2026-06-18 15:15 ` [RFC PATCH v1.2 10/11] mm/damon/sysfs: kobject_del() probe dirs in probes_addd_dir error path SeongJae Park
2026-06-18 15:15 ` [RFC PATCH v1.2 11/11] mm/damon/sysfs-schemes: kobject_del() region for populate_region error SeongJae Park
2026-06-18 15:38   ` sashiko-bot

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