From nobody Fri Dec 19 17:21:08 2025 Received: from invmail4.hynix.com (exvmail4.hynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CF08426D4DB; Mon, 19 May 2025 09:19:01 +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=1747646345; cv=none; b=W2JWpAWXABEafAZwWYQPHVU2UG6X49nMGm0bcDGfyU80pUUtwvO9bi5icW72NlJDeIU3CC9Ei3Z0A0KRAHgIVak4cxtYThUbEmdK4xkdGNfIZ8iyOPLin5gmRq8fdHQ3bj+fJ6G79rY2y8JcxIQPMfkcmq7aZ6TP8dN7TLsH4rM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747646345; c=relaxed/simple; bh=ZkFyExeh1KnVuSPGRbTV7HuyWfkqFgTaYfXkUw08ekE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=kTifskCpASFtCPU5B+5d3Xn/G+T2w/eQN3sxphqTtAqxYK3bxhiQF7Fr/FV9Dy8I+/HQFL/YyB/7y5+ppHpg/SnUGObUI7E/6LaGaU2J8mpNqKZKK4lfXJCKqgLszc6CTLoQlBHs6OH6fBjJ2Fku1CpA4fDiMoHpYaGGy+hW/20= 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-669ff7000002311f-e7-682af770348a 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, yskelg@gmail.com, yunseong.kim@ericsson.com, yeoreum.yun@arm.com, netdev@vger.kernel.org, matthew.brost@intel.com, her0gyugyu@gmail.com Subject: [PATCH v16 34/42] dept: make dept stop from working on debug_locks_off() Date: Mon, 19 May 2025 18:18:18 +0900 Message-Id: <20250519091826.19752-35-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20250519091826.19752-1-byungchul@sk.com> References: <20250519091826.19752-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWSWUxTeRTG+d+dSic3dbsgZpwmxhGjiII5JqMxPuj1wcTlwUQn4zRytdVS sWWdiRlQIFAWHSISELBUU5tSEG95wKUEQYqViBVqLQRQGjUiIA7Yjmxqi/py8sv58n3nezgM LuskoxiVJkXQahRqOSUhJOMRtevP/B+j3NhVxYD/Yz4BVTetFLga6hBYm7IxGOnYDc8DYwhm Hz/BobzMhaB2eBCHJscQArv5HAW9r34Ct3+CAmdZIQXnr92k4OnoHAYDl0sxqBP3wgvTGwK6 LhoxKB+h4Er5eSw43mIwbbLQYMpaDT5zJQ1zw3HgHPKQYO9fBxU1AxTcszsJcDT7MOi9U0XB kPULCV2OhwQESlaA699iEurfGykYDZhwMPknaOhpNWDgMCyDxpxgYN7UZxI6i1sxyLt+CwN3 310ELfkvMRCtHgra/WMY2MQyHGZudCDwlYzTkFs0TcOV7BIEhbmXCcgZSIDZT8HL1R/jIPtq IwH18x60YxtvrbEivn1sAudzbOn8jP8ZxdsDBoJ/ZOT425WDNJ/T0k/zBjGVt5lj+Gv3RjC+ dtJP8qKlgOLFyVKa14+7Mf59dze9L/qw5LdEQa1KE7Sx2/+UKN9VfiCSh6UZ870rs1D1Ij0K Zzg2npvNm6d+8JQ+Fwsxxa7hvN5pPMRL2FWcrfgNqUcSBmc9i7jn1X0oJCxm93Men2PBQLCr OYv+MxliKbuF+9JThX8L/Zmra2xd4PDgvr+wfcErYxM4d10NEQrl2PJwrmXQ+r1FJHff7CUu IqkBhVmQTKVJS1Ko1PEblJkaVcaGY6eTRBR8L9PZuSPNaNJ1sA2xDJJHSBvta5UyUpGmy0xq QxyDy5dILbZflTJpoiLzL0F7+qg2VS3o2tAKhpAvl24KpCfK2BOKFOGUICQL2h8qxoRHZaGj 1wl7lq7i7476PfPp1KqNkQVJYZJY99s1LbuTXx84MBP2T3TU1DZNfP2FzM5Tx5tjFaUdK0vG JgsN6gzjpz7XpV/O/Bd2yDnqPBHpS0XdYsrOPZsaHphnSyVbHvZsfb155uklnddYlL+fqVA9 Pnls6UjTH7sSxOQbTQ2CV7qsOfV3OaFTKuJicK1O8RVrPZl9WgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAAzWSfUzMcRzHfb+/p+ty9nMav7GG2zyF9KB8NoQZfmwM/9jM6OjH3XrQ7hJF VirLpYapJl2uh51ch9w183QtnTuSTpQr7YoaJuVKdRGFK/PPe6+933u/P/98RIT0BjVbpIxL EFRx8hgZLSbFO1anL4//HqAIGrfMA89wFglFt400NN2qRGCsTsPQY9sCrSN9CH41viSgIK8J QUlXBwHV9k4EloozNDR/mAYtnn4a6vOyaUgvu03Dq94xDK78SxgqTdvhnf4TCQ0XSjEU9NBw tSAde+UzhlG9gQF96gLorihkYKwrGOo7nRRYtfUUWNqXwpViFw2PLPUk2O91Y2h+UERDp/EP BQ32ZySM5M6Bpos5FNx0l9LQO6InQO/pZ+B1rQ6DXTcTqjK8q2eHflPwNKcWw9nyOxha3j5E UJP1HoPJ6KTB6unDYDblEfDzug1Bd+5XBjLPjzJwNS0XQXZmPgkZrjD49cN7WTscDGnXqki4 Oe5E6yN4Y7ER8da+foLPMB/nf3re0LxlREfyz0s5/n5hB8Nn1LQzvM50jDdXBPBlj3owXzLo oXiT4RzNmwYvMbzmawvm3Q4Hs9N/r3hNlBCjTBRUKyIixYovhQNkfJfkxHizfyrS+mqQj4hj V3JDmkw8wTS7iGtrGyUm2I+dx5lzPlEaJBYRrNOXa9W+RRPBDHYX5+y2TxZIdgFn0PymJljC hnN/XhcR/0bncpVVtZPs4/Xbs62TXSkbxrVUFpMXkFiHphiQnzIuMVaujAkLVEcrkuKUJwIP HY01Ie8D6VPGLt5Dw81b6hArQrKpkirLEoWUkieqk2LrECciZH4Sg3mxQiqJkiclC6qjB1TH YgR1HZojImWzJNv2CJFS9og8QYgWhHhB9T/FIp/ZqSizcbfOVxO4Kbzjo/+M6s3JobZlG5Nt Dsv16h8py4K+v48+GPx4E+MOLz/n6FrljtCcyXct7D2s7awNWbJirXTfyT0D4lPv1tVsbbyh YLQrD8jnS5+0Octxlj1oKMQWNXh51ovTGxa7pftddw/7JBxUh5bEJz5cFOng1kRt/madHm6U kWqFPDiAUKnlfwGM1sM4PAMAAA== 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 b154c1bb4ee5..b5ba6d939932 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