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bh=AYOzMyZwHARxR0NZjcHLGHg4Al6n3ZFtJVQObKKPsUw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=HK9ZrErrT/G95PukbMmY9I40KAE9YhFy3SmSqjosNPeVV2aV0AkD03Jgs7TOMMfZq n/tbanT6cTPQsFXcukot33O/Oj4S8PCSNWnsO3Q4DiqKUjySk6MMkWkD4IPxuOqnpD i1zAMudAtaqZvqEywGXUnC7lC3dr3rzv2PaoC2U17ulAqHJzGkAXEVzb3D3UKLgcJP FAOf4f30h4xKXQfLH5Xnud+AjFDIk87Gc/7CZZWMpcQmAgQWLMGxsJKXpiUgzZbYMn k9uUcaymjMkUWdt9cbqeKAhJeQQcfEBi9cdDNZG5Vdvt9/34wKztKESNfzq+B1verL UUZ8B8/n3awbQ== From: SeongJae Park To: Cc: SeongJae Park , "# 5 . 18 . x" , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.2 03/11] mm/damon/sysfs-schemes: kobject_del() scheme dirs Date: Thu, 18 Jun 2026 08:15:07 -0700 Message-ID: <20260618151517.5366-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260618151517.5366-1-sj@kernel.org> References: <20260618151517.5366-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: u3puykw156pnwcuuedojcoe1nz36pxwn X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: DDC10A0012 X-HE-Tag: 1781795732-134790 X-HE-Meta: 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 iL+5bYwS 2F4tUCFuN3+/vWE21Wc57PJ2ALsQWT9Wr4nr16wHFp3kPYrUz9EcPkppOn9gIvucW/0P8mnsh9nW9P3mbeAXtJHmi1ZOszZRhkuyEdvTMddfOTTTVVyzshf65Oean21eBo+yMznIjO4d9XIuW54YYMlVAJa6Blp8MdApoUc5FtwS28OE7tRldyFzqMOD8cJrzNYOb8AgMDv7HQRh7zXrDzoQ7WXO8W7xP/BOPXfWX+nLN8sQZrhyL5pJZJ4rpPf1j7nOn8m6qY/6YdJ9ry90gSirYBA== 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 scheme directories by adding kobject_del() calls. Fixes: 7e84b1f8212a ("mm/damon/sysfs: support DAMON-based Operation Schemes") Cc: # 5.18.x Signed-off-by: SeongJae Park --- mm/damon/sysfs-schemes.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 0134111c3c1ff..13f5fae01800b 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -2683,6 +2683,7 @@ void damon_sysfs_schemes_rm_dirs(struct damon_sysfs_schemes *schemes) for (i = 0; i < schemes->nr; i++) { damon_sysfs_scheme_rm_dirs(schemes_arr[i]); + kobject_del(&schemes_arr[i]->kobj); kobject_put(&schemes_arr[i]->kobj); } schemes->nr = 0; @@ -2724,13 +2725,15 @@ static int damon_sysfs_schemes_add_dirs(struct damon_sysfs_schemes *schemes, goto out; err = damon_sysfs_scheme_add_dirs(scheme); if (err) - goto out; + goto del_out; schemes_arr[i] = scheme; schemes->nr++; } return 0; +del_out: + kobject_del(&scheme->kobj); out: damon_sysfs_schemes_rm_dirs(schemes); kobject_put(&scheme->kobj); -- 2.47.3