From nobody Wed Dec 17 17:44:29 2025 Received: from invmail4.hynix.com (exvmail4.skhynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8257D2EB849; Thu, 2 Oct 2025 08:13:26 +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=1759392809; cv=none; b=slZS15mlPcUt7O7pozG6/brYr6mAWW/kXxpeyEPhEM90t1yxXlx9eQlgC5kEpxfU6tu64+6tMh1yrCMkOmPxZwVpwXlsxqHeETRKE45IRVtToJIMId+LvzrB9fLTDBqQ42UfO75u83PkziyEN/R1r4z/n1Hysp+1AVs2fe1QqdE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759392809; c=relaxed/simple; bh=ARgkPBXeh3Qqcqmd0S+vaMsLgXB5DnOPrEodx89W1JU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=UrPyVJA1dHJYBKJfjd6bpVGreLXt3jJI/Sv3ay4RGKsCcLT2LQrSUKK+muYwJIFlCs4E9quiBUptArd610675aqtoOwvMmdgiJ7QtVbe7xOovwzdN3Cr/KYzdvD9VMl0dwnt/5ZO2UtRtWQltbSei0IuMP15wuK2njpbTFKs+Oc= 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-c45ff70000001609-5e-68de340df6e9 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 10/47] dept: distinguish each work from another Date: Thu, 2 Oct 2025 17:12:10 +0900 Message-Id: <20251002081247.51255-11-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: H4sIAAAAAAAAAzXSa0hTYRgH8N5zzs7ZlqvTEjqVUCyki2kaFk8XpLDgDQqCgrI+5MxDW80p 00yDatIF80ZZy/SoaV5aXrBm0XQT1NLKG/PSvLSZlmWZJllpucS80Lcf/+d5/p8eMSlPEa0Q q7VRvE6r1ChoKSUdccv1lvn3qnz7473AHldNQbwpXQQTLoGEqdR6Bqar6hHcaU0loeRJHAFf n48hmHYOEtA5PowgzWBD8PHGUxI6fo3S8NqQSENFXyUDxaYDcOfxMhDSLhNgKLUQIDS3i+C9 MYOBZ/o+BkzddQiqerwg91o+BenZDhqsVa8paK/MpEEvTIigrdhGQdlgFwGN9a8oKOhsJaC8 uYmEl8nVBDhShijo6LYgGMzIIqDB+YOBW205NJSbDCTYU+/RIMSlIIh/MU5C1k8/+FlcREPp lB2BUNfL7PLFJdklCLsmUxF+PjxK4oLGYRpP/npD44oMJ4NzTGdxuXEDzrN+IbCp6DqNc12f SeywW2n8raWFwRX92/BARxqBc/UG8qDHMenOUF6jjuZ1mwKCpaoBSw0d8Y2JuZaUzeiRlU5A EjHH+nMDnZnov9umyuZMs2u5rq4/5Kzd2dVcefIn0axJttGDs7dunPVSNpB7e3t6rodiPbmc OoGZtYzdyjW8u0vNd67iih9Vz/VIZvL2/sa5XM5u4a6OXiESkHRmR5BwBbYWZv5gOVdj7KJu IFkOWlCE5GptdJhSrfH3UcVq1TE+J8PDTGjmSwov/D1uRmO2Q7WIFSOFm8zm6VTJRcroyNiw WsSJSYW7LNjoUMllocrY87wu/ITurIaPrEUrxZRimWzz+LlQOXtKGcWf4fkIXvd/SoglK/Qo yRrSh2vzFrl+D6XsDw744CPprnI6913cK9csWXz/4Y6xpnUtHH0z38ys6Yk6mhyISo2C2TLl lqf0LjKPrPc+cvVSoCuo94Fls3kwseD0iLZnXLenM6r51sEQbXtN//bMD4UhcQ0Lv8te7K5U x5z6fdiLCwsNOu2kpt84OlCsh4KKVCn9NpC6SOU/yH4ksyEDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAAzWSbUhTcRTG+99797/baHVZQheLipUVYS9CxbEieoNuRRF9KSrIUZe2nBpb WUaSb0upLB1O05u1lIa5paZl6VrZwlEtyWnvOpexNNFlpBambm1GXw6/8zznPJwPR0zK60WR YnXiCV6bqNQosJSS7lqbuVS2sku1wtUsg3fpTRSMDOdQcK3aiiGntlgErVUWBN6RHAS/xwQS 9A1BCiYMThqGRztoCNqdCArdBhKs99IJGKoJYOh/9hOBsduHoagvnYJB8yUEJT0CDX3NW8Hv tYkg6Okl4P2vAQRmX4AAX1M2gonCeLhRVodhrOU1CUXGVgQ3uz0kfKsJmfecXQjsFRkYvubd J6HdNw3ejAxieGG8iMHvvkbA9xoMpgy7CEoFA4LM8moMhaW1FDR8bqTB3T9OQGehgQBL7U7w mnsocOWVEaH7QlN3Z4JQlEmEyjcCjHdsBIyaK2l4Vd5JgTktCoSWdhF8qSihYbw7BoKmJHBa emnwXDFSUOV/LdpgRNxv/WWKq6yrJzh92wTmrNetiBv7Y0Dc8K1MktPnhdpnA4Mkl1V3irvl GsDcn5G3mLP/MlHcyzKWy29ZyjWUeGgu6/Enevea/dJ1R3iNOpnXLl8fJ1X5bE/x8e/06fOX rtNp6BG+gCRillnJtk1UozBjZhH74cMoGeYIZh5bl9sjCjPJuGaz79zRYZ7BbGY7CoKTuxQT xZqaBTrMMmY1+9J7lfqXOZe11DRN5khCenu3a1KXM6tY/WAWkYekJjSlEkWoE5MTlGrNqmW6 eFVKovr0ssNJCbUo9E3m1PH8h2i4fasDMWKkmCpzR3lUcpEyWZeS4ECsmFREyOIqOlVy2RFl yhlem3RIe1LD6xxolphSzJRt38vHyZmjyhN8PM8f57X/XUIsiUxDh/mOB1FnHZskuv5T+X6y 6Llv+tX7e7Y1OlxO4es5Z0zpDv9zx8edkhw7J3xJjaX3WS1Zqi0FHfho9OwHT4VIZmFr6fyN Tz4XrCmO4zdWxV6x9QcCrkMSY5eKppgVgYPRP1Lb6g8UaOYcWxBL3m70qm1Nlt7s8r4tQ8WL c3uNCkqnUsYsIbU65V94koK6SQMAAA== 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" Workqueue already provides concurrency control. By that, any wait in a work doesn't prevents events in other works with the control enabled. Thus, each work would better be considered a different context. So let dept assign a different context id to each work. Signed-off-by: Byungchul Park --- kernel/workqueue.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index c6b79b3675c3..0e05648b4501 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -55,6 +55,7 @@ #include #include #include +#include =20 #include "workqueue_internal.h" =20 @@ -3153,6 +3154,8 @@ __acquires(&pool->lock) =20 lockdep_copy_map(&lockdep_map, &work->lockdep_map); #endif + dept_update_cxt(); + /* ensure we're on the correct CPU */ WARN_ON_ONCE(!(pool->flags & POOL_DISASSOCIATED) && raw_smp_processor_id() !=3D pool->cpu); --=20 2.17.1