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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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 95203160014 X-Stat-Signature: a81tcwantug4bz4k6kjxg4rqyyq1e16s X-Rspamd-Server: rspam03 X-Rspam-User: X-HE-Tag: 1781622541-347978 X-HE-Meta: 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 07C3ohow mFgDl+Ku7wS5PjtsZHb/8ACgJUshLppJFUTGsQPU4g15PwEQw78D3nC62Nhopg/rmndeHbCHt5QR0ShHIjDAMw8bJRzNi5hjHjgLDd9mLMuGwfuhjFyBDXHYjnXv5yf0AlNVJzo+AhCI43LHItQ7JRUG06cIm5luN9aiQmWLxmt1eTsom+ys2xWYXSoMSVnycK49/xpwiSZpXUoPqiEvwUtETeKoS4/JByN62TiEh+3Fve32tw91vvSOZwBU8i+nv0DwOWcPie/BYpBi5RLGSp8DyMA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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