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Mon, 23 Feb 2026 01:29:25 -0800 (PST) Received: from linux.fritz.box.box ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483a31f0370sm440197135e9.11.2026.02.23.01.29.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Feb 2026 01:29:24 -0800 (PST) From: Marco Crivellari To: linux-kernel@vger.kernel.org Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Jens Axboe Subject: [PATCH v2 0/2] Add WQ_PERCPU to alloc_workqueue users Date: Mon, 23 Feb 2026 10:29:18 +0100 Message-ID: <20260223092920.60424-1-marco.crivellari@suse.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi, Recently the workqueue code has been changed introducing two new workqueue, system_percpu_wq and system_dfl_wq, as a future replacement for system_wq and system_unbound_wq respectively, and a new flag, alloc_workqueue() WQ_PERCPU. This flag must be used when WQ_UNBOUND is not present, making explicit the workqueue is per-cpu. The changes has been introduced by: commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") The old workqueue(s) will be removed in a next release cycle. === Introduced Changes by this series === 1) [P 1-2] add WQ_PERCPU to alloc_workqueue() This change adds a new WQ_PERCPU flag to explicitly request alloc_workqueue() to be per-cpu when WQ_UNBOUND has not been specified. Thanks! --- Changes in v2: - patches unified in 1 series - rebase on v7.0-rc1 Marco Crivellari (2): block: Add WQ_PERCPU to alloc_workqueue users block/blk-throttle: Add WQ_PERCPU to alloc_workqueue users block/bio-integrity-auto.c | 2 +- block/bio.c | 2 +- block/blk-core.c | 2 +- block/blk-throttle.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) -- 2.52.0