From nobody Wed Dec 17 17:47:28 2025 Received: from invmail4.hynix.com (exvmail4.hynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E403030F522; Thu, 2 Oct 2025 08:14:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=166.125.252.92 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759392846; cv=none; b=YzBjjIZ/dqyyh3mUbw8pJaonlOiueK6e2UG72i3JL8znCOd+edBI7GYSN8WnT157t3ASiOhXS0ytvzynpAOONMh19OFGqmHbbNBoPimS2cJ/HKsYJRzzhQegMpBzEusjh2FrYUlLUFoEhM4QfIbdTxarGmZJD8tEfYiE3AOaMss= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759392846; c=relaxed/simple; bh=bAY3rt6aKAGfMJPQINH+hMkC8sTc5M1WU32fGvq/Um8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=S9Eh/D1A3j3aH5Pfq/SB30nG/EX28pr9+g5CaB20ohHHXSgDTMPDYOEcaathAUg0z2Ws/JIa3/bhK2aRvGdX3U/tzy4GaeRzzs4uoALLW87ieaqnm+T1FhdRQDDshera3DplWT3pHMokyE4HidpW6dn/tSAVQQ2lr7A5EqsKhMs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com; spf=pass smtp.mailfrom=sk.com; arc=none smtp.client-ip=166.125.252.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sk.com X-AuditID: a67dfc5b-c45ff70000001609-a2-68de3413df26 From: Byungchul Park To: linux-kernel@vger.kernel.org Cc: kernel_team@skhynix.com, torvalds@linux-foundation.org, damien.lemoal@opensource.wdc.com, linux-ide@vger.kernel.org, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, will@kernel.org, tglx@linutronix.de, rostedt@goodmis.org, joel@joelfernandes.org, sashal@kernel.org, daniel.vetter@ffwll.ch, duyuyang@gmail.com, johannes.berg@intel.com, tj@kernel.org, tytso@mit.edu, willy@infradead.org, david@fromorbit.com, amir73il@gmail.com, gregkh@linuxfoundation.org, kernel-team@lge.com, linux-mm@kvack.org, akpm@linux-foundation.org, mhocko@kernel.org, minchan@kernel.org, hannes@cmpxchg.org, vdavydov.dev@gmail.com, sj@kernel.org, jglisse@redhat.com, dennis@kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, vbabka@suse.cz, ngupta@vflare.org, linux-block@vger.kernel.org, josef@toxicpanda.com, linux-fsdevel@vger.kernel.org, jack@suse.cz, jlayton@kernel.org, dan.j.williams@intel.com, hch@infradead.org, djwong@kernel.org, dri-devel@lists.freedesktop.org, rodrigosiqueiramelo@gmail.com, melissa.srw@gmail.com, hamohammed.sa@gmail.com, harry.yoo@oracle.com, chris.p.wilson@intel.com, gwan-gyeong.mun@intel.com, max.byungchul.park@gmail.com, boqun.feng@gmail.com, longman@redhat.com, yunseong.kim@ericsson.com, ysk@kzalloc.com, yeoreum.yun@arm.com, netdev@vger.kernel.org, matthew.brost@intel.com, her0gyugyu@gmail.com, corbet@lwn.net, catalin.marinas@arm.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, luto@kernel.org, sumit.semwal@linaro.org, gustavo@padovan.org, christian.koenig@amd.com, andi.shyti@kernel.org, arnd@arndb.de, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, rppt@kernel.org, surenb@google.com, mcgrof@kernel.org, petr.pavlu@suse.com, da.gomez@kernel.org, samitolvanen@google.com, paulmck@kernel.org, frederic@kernel.org, neeraj.upadhyay@kernel.org, joelagnelf@nvidia.com, josh@joshtriplett.org, urezki@gmail.com, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang@linux.dev, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, chuck.lever@oracle.com, neil@brown.name, okorniev@redhat.com, Dai.Ngo@oracle.com, tom@talpey.com, trondmy@kernel.org, anna@kernel.org, kees@kernel.org, bigeasy@linutronix.de, clrkwllms@kernel.org, mark.rutland@arm.com, ada.coupriediaz@arm.com, kristina.martsenko@arm.com, wangkefeng.wang@huawei.com, broonie@kernel.org, kevin.brodsky@arm.com, dwmw@amazon.co.uk, shakeel.butt@linux.dev, ast@kernel.org, ziy@nvidia.com, yuzhao@google.com, baolin.wang@linux.alibaba.com, usamaarif642@gmail.com, joel.granados@kernel.org, richard.weiyang@gmail.com, geert+renesas@glider.be, tim.c.chen@linux.intel.com, linux@treblig.org, alexander.shishkin@linux.intel.com, lillian@star-ark.net, chenhuacai@kernel.org, francesco@valla.it, guoweikang.kernel@gmail.com, link@vivo.com, jpoimboe@kernel.org, masahiroy@kernel.org, brauner@kernel.org, thomas.weissschuh@linutronix.de, oleg@redhat.com, mjguzik@gmail.com, andrii@kernel.org, wangfushuai@baidu.com, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-i2c@vger.kernel.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org, rcu@vger.kernel.org, linux-nfs@vger.kernel.org, linux-rt-devel@lists.linux.dev Subject: [PATCH v17 34/47] dept: make dept stop from working on debug_locks_off() Date: Thu, 2 Oct 2025 17:12:34 +0900 Message-Id: <20251002081247.51255-35-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251002081247.51255-1-byungchul@sk.com> References: <20251002081247.51255-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWSa0hTcRjG+5+7q9VpSp0uUC1E0NQuGm8UFV1PUVHYh7Akhx7aSmfNS1oU s7KW2U3y7nQmzuGWyVZpXnLaHZPUlUneck2zdAmlomUXZ/Ttx/P+nufTy+CSy+R8RqGMEVRK WYSUEhEi54wCX/eALvnyjzYfaCo1Iuge0SAYHm+nwXQvEYOMz4kEDOlTEGT35dDg7K4i4U/n Jwz0jt8YOKyXEBT0dOJgc8wEbU4qgvOFdylI15oJaB6YwMBo3g3j+hIa7IZsGiZ6VkCp8zUJ L7taSRjoS6Wg+/lFEsrVH2jQVI4QkJXXQUF1zUsCnlXYMbBV5lKQUnafhBZjEwFF75oxsDS+ wuHO19sUDIzqcWix6jBIrCsk4H5tEgKzqZWCT9laDB6PDGJgv+ak4efY5MrXG8Mk5Dztojf6 80ktvyjelGdC/OPBIZwvahik+JpRHcHfbPTlH2Z30rzOHMtbDN58YfVnjDeXXKb4ZOcbjH+R +ZPgC9RpOF+rNdF8vyUL7Z0TLFoXLkQo4gSV//pQkdx6pZg+3iOO77A4CDXSTk9GbgzHBnAX 3n/HkxEzxbcaz7piivXi2trGcRd7sIs5y9U+0sU427CQa21e5mJ3dh93Lql4yiFYT+6Jxk65 WMyu5todWuLf/CLOWGadctwmc1tPw1QuYQO5pKELWDISTToZblyaugr7V5jH1RnaiBtIrEPT SpBEoYyLlCkiAvzkCUpFvF9YVKQZTT6I/szEwQr0rSmoHrEMks4QN3l2yiWkLC46IbIecQwu 9RCHGjrkEnG4LOGUoIo6rIqNEKLr0QKGkM4Vrxw9GS5hj8hihGOCcFxQ/b9ijNt8NULz1Jvw tUFRsVtz25fs4LZXpl9VfQnZfDo1X7QnqNB7TX9br9WjVzG2YffamSdMs7YZf4QG2FM70J7Z AwYfL7/9KZqjIe6KU4EH5uy69qAiMNeoLP821m4sHa30ZzRzdaqG/OBVw2cs03JjDqGgdNvO Ldd/jYSdtr19lJe2CTKnL5US0XLZCm9cFS37C+jR00EcAwAA X-Brightmail-Tracker: H4sIAAAAAAAAAzWSa0hTYRjHe895z8XV6rCkDhkVAwvCLoLVg0VlBDsURX0pKCiXHdrQTdnM MjK8jUZXG82lyzSlZc5sbRqZLIapUMtq2Y3cssnSIk0qp3hvE/ry8Hv+/9+H58PDkrImagmr 1maLOq0yQ05LsGTv5qI1C5O+qNa7nAg+FHgwhIeNGG4+qKfB6Cyj4E2DHUFP2IhgdMJKgqF5 BsOUqYOB4bFuBmbcHQhKfSYS6hsLCPjrmKbh57M/CMzBEA2WHwUYhmyXEJT3WRn40a6AwZ4W CmYC/QR8HBlAYAtNExDynEcwVZoOldUuGiY6X5NgMb9BcDsYIOG7I1I2dnxB4K4tpOFbSRMJ XaH58C48RMNz80UaBn03CfjloKGq0E1BhdWEoKjmAQ2lFU4MzV+fMOD7OUmAv9REgN25B3ps fRi8JdVE5L6I9XAxWC1FRGR8J8B8v4WAMVsdAy9r/Bhs+fFg7eyioLe2nIHJYCLMVGVCh72f gcBVM4aGwdfUdjMSRg1XsFDnekQIhrdTtFB/qx4JE+MmJAzfKSIFQ0lkfTYwRArFrlPCHe8A LYyH39OCe6QKCy+qeeFa5xqhuTzACMVPPzP7kg9JthwXM9Q5om7d1lSJynPxLpMVlJ72u0I4 H1XMvYBYlueS+Oud5y6gGJbmVvGfPo2RUY7lVvCuy31UlEnOu5T/4EuI8kJuP19ouDvrYC6e bzP20lGWchv57lAFjjLPLeftDs+sExPJu4Le2VzGbeANQ8VECZJUoTl1KFatzdEo1Rkb1urT Vbla9em1aZkaJ4o8ky1v8tpjNNylaEUci+TzpL74gEpGKXP0uZpWxLOkPFaaWutXyaTHlbln RF3mUd3JDFHfiuJYLF8s3XVQTJVxJ5TZYrooZom6/y3BxizJR0nSrBtUYtmxmuq9Z/ms5MxN Sbf+7Fi5uXLr/jafc/e6e764w+N2g/Js3rJ34ZY0rX2uX73AO7LzkC/71cdFB47UNDnyfo+2 pban9bu6yZ0ewz5NwhNLXErOHk69zd/ubhKTKXNjg+bF1GBIobAqDqeEUhIsKyrxdG/ZSd08 4xY51quUiatJnV75DxGTf51IAwAA X-CFilter-Loop: Reflected Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" For many reasons, debug_locks_off() is called to stop lock debuging feature e.g. on panic(). dept should also stop it in the conditions. Signed-off-by: Byungchul Park --- include/linux/dept.h | 2 ++ kernel/dependency/dept.c | 6 ++++++ lib/debug_locks.c | 2 ++ 3 files changed, 10 insertions(+) diff --git a/include/linux/dept.h b/include/linux/dept.h index 8b4d97fc4627..b164f74e86e5 100644 --- a/include/linux/dept.h +++ b/include/linux/dept.h @@ -390,6 +390,7 @@ struct dept_ext_wgen { unsigned int wgen; }; =20 +extern void dept_stop_emerg(void); extern void dept_on(void); extern void dept_off(void); extern void dept_init(void); @@ -442,6 +443,7 @@ struct dept_ext_wgen { }; =20 #define DEPT_MAP_INITIALIZER(n, k) { } =20 +#define dept_stop_emerg() do { } while (0) #define dept_on() do { } while (0) #define dept_off() do { } while (0) #define dept_init() do { } while (0) diff --git a/kernel/dependency/dept.c b/kernel/dependency/dept.c index a0eb4b108de0..1de61306418b 100644 --- a/kernel/dependency/dept.c +++ b/kernel/dependency/dept.c @@ -187,6 +187,12 @@ static void dept_unlock(void) arch_spin_unlock(&dept_spin); } =20 +void dept_stop_emerg(void) +{ + WRITE_ONCE(dept_stop, 1); +} +EXPORT_SYMBOL_GPL(dept_stop_emerg); + enum bfs_ret { BFS_CONTINUE, BFS_DONE, diff --git a/lib/debug_locks.c b/lib/debug_locks.c index a75ee30b77cb..14a965914a8f 100644 --- a/lib/debug_locks.c +++ b/lib/debug_locks.c @@ -38,6 +38,8 @@ EXPORT_SYMBOL_GPL(debug_locks_silent); */ int debug_locks_off(void) { + dept_stop_emerg(); + if (debug_locks && __debug_locks_off()) { if (!debug_locks_silent) { console_verbose(); --=20 2.17.1