From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C002A429802; Tue, 16 Jun 2026 15:08:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781622539; cv=none; b=T1fGnUw9alSOh6ipJCYlw3e4u0q0kBRK+dFPRDWq8GW6ygHdJvA5mP6/LL32EJH+sLNqHvulswqoEUR/V4/LtNKsq31Wfq6qbbDaji2K/v9qiixX4AM7jKVNd1xCTDC4KoRGO04ann+qGGd3lh44tUQF0H9KthjvKEAai5nbKkU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781622539; c=relaxed/simple; bh=6W7C4aAq2s1Rk5FD/MQNumBs51TXYYqQDXWyDqzXX4o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jusfCtrZMajDKn9WN3Om2+bUE+KR+Qh2FOiK9ZU/zPLa7iL9yNe+It3lhLtlQ2j17VJRx1ShOS2vVFkdkasSOY3TKG1syiiw3v2r0UEuH/gp1iZKyTyWYwI8IYEwuEpzBSiYJgmZoAAQCR1lv5azSQCerkh4yekpN/9Zxx0RMac= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SJYO+ksc; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="SJYO+ksc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 165321F00A3D; Tue, 16 Jun 2026 15:08:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781622538; bh=fRYCEJGGbsLwqfrNLbJ3qqnMcfvhiZNMWDaTEuP0qWI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=SJYO+kscTWI6vZEd4GRfFOpZeqxztssiWSx5yfldPZKiVEFxnvVdD0kABQSOkpm9o i7oKnn0L/ybhKo1PzJa1O4y77wnivc0iE8hD+isFjA6/v6mJGqQtmR5duBNUisGX2E sjxevFbAf52YMHgK9KLZxzkldJF3QijoMiq1Zht+11VOHaZ/Xsg1yIFTN3TUeV5AgG V1VWEaMGNfwd+ce3U/NXAkJ9XqsZGMC6MI/YE9Dh+ZydgXM4qI/eAJVK1X8M2wzn4Z vclJFW5LIX/QUX/EDnnS7wdn6kv68YE5ifBCvSwRhUvuj3jIlGn2vjzu0mTAWceX9h TcYByUfZC9ixw== From: SeongJae Park To: Cc: SeongJae Park , "# 5 . 18 . x" , Andrew Morton , Jiapeng Chong , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 1/9] mm/damon/sysfs: kobject_del() target, context and kdamond dirs Date: Tue, 16 Jun 2026 08:08:35 -0700 Message-ID: <20260616150844.88305-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260616150844.88305-1-sj@kernel.org> References: <20260616150844.88305-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 target, context and kdamond directories by adding kobject_del() calls. Fixes: c951cd3b8901 ("mm/damon: implement a minimal stub for sysfs-based DAMON interface") Cc: # 5.18.x Signed-off-by: SeongJae Park --- mm/damon/sysfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 2e95e3bac774d..d93f7919c3ca1 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -333,6 +333,7 @@ static void damon_sysfs_targets_rm_dirs(struct damon_sysfs_targets *targets) for (i = 0; i < targets->nr; i++) { damon_sysfs_target_rm_dirs(targets_arr[i]); + kobject_del(&targets_arr[i]->kobj); kobject_put(&targets_arr[i]->kobj); } targets->nr = 0; @@ -1642,6 +1643,7 @@ static void damon_sysfs_contexts_rm_dirs(struct damon_sysfs_contexts *contexts) for (i = 0; i < contexts->nr; i++) { damon_sysfs_context_rm_dirs(contexts_arr[i]); + kobject_del(&contexts_arr[i]->kobj); kobject_put(&contexts_arr[i]->kobj); } contexts->nr = 0; @@ -2501,6 +2503,7 @@ static void damon_sysfs_kdamonds_rm_dirs(struct damon_sysfs_kdamonds *kdamonds) for (i = 0; i < kdamonds->nr; i++) { damon_sysfs_kdamond_rm_dirs(kdamonds_arr[i]); + kobject_del(&kdamonds_arr[i]->kobj); kobject_put(&kdamonds_arr[i]->kobj); } kdamonds->nr = 0; -- 2.47.3