From nobody Fri Dec 19 17:19:22 2025 Received: from invmail4.hynix.com (exvmail4.hynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 32C8826B96B; Mon, 19 May 2025 09:18:44 +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=1747646329; cv=none; b=ZS2eNHcjNaFfWOm9poMSOy+31iB+u5N76LQB5Cy/T1DBZnQOgKjR9sWJuKyyuaAygisruyIfhxE1ld9oFJzDg71WlCJ2rRfQUTnJRj/Xh30T2QCX6e4mU/ZwtlyWGY9jBydM9fSWsUDLTfX+HrS2arVuNlhh3oGNASYJu+kmeaY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747646329; c=relaxed/simple; bh=KlggbR8P/n36oRZlJZsBth/VG91g9Dz5bdB/P0jqAy0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=I5tSieYR1ckCwfyCrZmtOIRaY0ZyFvyida6pHMN9J2AQWcxsQ8274ay8lCf5IJebYIohvPhlSuYpHjOe3RYHNnx6W8rrj/Ujtgw2u4kPmpmcRpuJ0t8aydzIger6YmVWpIGjRC/SU9HT8Sx1pQBzzrq2su+FYP6cyP7+Pmk7KAQ= 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-75-682af76d6e83 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 10/42] dept: distinguish each work from another Date: Mon, 19 May 2025 18:17:54 +0900 Message-Id: <20250519091826.19752-11-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: H4sIAAAAAAAAAzWSbUxTZxTHfZ57e++lo8tNp3h9SZxNnIqZjkX0ZHNTtw88WWKyzG9oInVc bV1pTYsFNIsgYBxdq+KA+EJpkXRNW7W2fEClBEvoBKai1oqkghBlIwJdwJYXca7F7MvJL+ef /+98ORwlD0mWc2ptoajXKjUKRkpLx9Ptn2qnM1WfNcRWQ/z1KRouXfMw0HvVjcDTXIZhtDMH niTGELy5e5+CuppeBPahZxQ0hwYQBJwnGHj04kMIx2MMdNWYGCi/fI2BB6/mMURrqzG4fbtg 0DFCQ8+ZRgx1owxcrCvHyfE3hlmHiwVH6RoYdl5gYX4oC7oGIhII9G+A89YoA62BLhpCLcMY Ht28xMCA550EekJ3aEhYVkDvWbMErkw0MvAq4aDAEY+x8LDdhiFkywBvRVJ4cupfCfxhbsdw suk6hvDTWwjaTj3H4PNEGOiIj2Hw+2oomPu9E8GwZZyFyl9nWbhYZkFgqqyloSKaDW9mkpfr X2dBWYOXhitvI2jHV8Rj9SDSMRajSIW/iMzFHzMkkLDRpLtRIDcuPGNJRVs/S2y+I8TvzCSX W0cxsU/GJcTn+oUhvslqllSNhzGZuHeP/X5lrnRbvqhRG0X9pq/zpCpvpfHwBFvcFPwHl6JW pgpxnMBvFqJDmiqUtoDjjZ1sihl+rdDXN0uleDH/seA3j0iqkJSj+MgHwpP6pygVfMR/K9jt A0yKaX6NMDM1j1Ms47cIdlMUv5euEtze9gVRWnLfb+pY6Mr5bCHsttIpqcCfSxNqO6vZ94Vl wm1nH30GyWxokQvJ1VpjgVKt2bxRVaJVF2/8UVfgQ8nvcvw8v6cFTfbuDiKeQ4p0mTewXiWX KI2GkoIgEjhKsVjm8q9TyWX5ypKjol63T39EIxqCaAVHK5bKPk8U5cv5g8pC8SdRPCzq/08x l7a8FOVucvE7bwxayxfpCu8/jGXkvQyfzevObcvuOt+8/e3Ui4jzXeGh1ekj25eajzaTrXMt 3obMLwq2dRiXtX3jPm7ZX/9l6dwJVe4nQ6jowW+GCYvP7yhe+ed3uuAGy4G/ehR7Z1YN/mAx Wc/tMmdkT7+Ude/OmdYda8o6ffqxbMna4zdzFLRBpczKpPQG5X+H3qqAWQMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAAzWSa0iTYRTHe5736mrxtoa9LLQYdDOthlqHLiuQ8qXoQgRBfchhL22oKzZb GQSaTkxT0lhiNdumLNOVayvo4kIULYvK0sxkWVpEkjdqW5qaTaMvhx/nz/93vhyWkN2kFKxO nyka9Jp0JS0hJXs25cZl/IrRrvucr4JgoICEa/UuGtpv1yFw3c3BMNCSDO9CgwgmXrwioNzS jsDe94GAu629CHw152jo+DIfOoMjNLRZimjIraqn4fX3SQz+y2UY6jy74aPzKwnPLzowlA/Q cLU8F4fHNwzjzloGnNnLoL/mCgOTfSpo6+2ioNnaRoGvZzVUVPppaPC1kdB6vx9Dx8NrNPS6 pil43vqUhFDJYmgvLabg1rCDhu8hJwHO4AgDbxptGFptkeDOC1vzf/6h4ElxI4b86jsYOt8/ QvC44BMGj6uLhubgIAavx0LA7xstCPpLhhgwXxhn4GpOCYIi82US8vyJMDEWvmwNqCDnupuE W1NdaJtacFW6kNA8OEIIed5Twu/gW1rwhWyk8MzBCw+ufGCEvMc9jGDznBS8NTFCVcMAFuw/ gpTgqT1PC54fZYxQONSJheGXL5l9UYckm4+K6TqTaFirTpFo3WbTiWHmdHXTKM5GDXQhimB5 LoEfcrQwM0xzK/ju7nFihuXcUt5b/JUqRBKW4Lrm8u+s79FMsJBL4u323tkyyS3jx35O4hmW cut5e5Ef/5Mu4evcjbOiiPC+p6h5tivjEvnOukryIpLY0JxaJNfpTRkaXXriGmOaNkuvO70m 9XiGB4UfyHl2svQ+CnQkNyGORcp5UrdvlVZGaUzGrIwmxLOEUi6t9a7UyqRHNVlnRMPxI4aT 6aKxCS1mSeUi6c6DYoqMO6bJFNNE8YRo+J9iNkKRjTZGsQmSWAthUavjI5fGS6Md8sPdAVVa 0l65PzW+QV1dsiMy2Xlpw3Tm9sbEJHNa6oFzCkdyQkHsvfqKwIKnow+iuTLblrVR5oqxqY4p hfVs5cR03KhJW7r1T3Zo/mp7cPe8FGvs+M1d+rnL90e3TO3IH+3ri407syH3m7xwpyJaSRq1 GlUMYTBq/gJ+wP42PAMAAA== 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 cf6203282737..5a6ab354c416 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -55,6 +55,7 @@ #include #include #include +#include =20 #include "workqueue_internal.h" =20 @@ -3155,6 +3156,8 @@ __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