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Message-ID: <20250614133531.76742-4-marco.crivellari@suse.com> Date: Sat, 14 Jun 2025 15:35:31 +0200 From: Marco Crivellari <marco.crivellari@...e.com> To: linux-kernel@...r.kernel.org Cc: Tejun Heo <tj@...nel.org>, Lai Jiangshan <jiangshanlai@...il.com>, Thomas Gleixner <tglx@...utronix.de>, Frederic Weisbecker <frederic@...nel.org>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>, Marco Crivellari <marco.crivellari@...e.com>, Michal Hocko <mhocko@...e.com> Subject: [PATCH v5 3/3] [Doc] Workqueue: add WQ_PERCPU Workqueue documentation upgraded with the description of the new added flag, WQ_PERCPU. Suggested-by: Tejun Heo <tj@...nel.org> Signed-off-by: Marco Crivellari <marco.crivellari@...e.com> --- Documentation/core-api/workqueue.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst index e295835fc116..165ca73e8351 100644 --- a/Documentation/core-api/workqueue.rst +++ b/Documentation/core-api/workqueue.rst @@ -183,6 +183,12 @@ resources, scheduled and executed. BH work items cannot sleep. All other features such as delayed queueing, flushing and canceling are supported. +``WQ_PERCPU`` + Work items queued to a per-cpu wq are bound to a specific CPU. + This flag is the right choice when cpu locality is important. + + This flag is the complement of ``WQ_UNBOUND``. + ``WQ_UNBOUND`` Work items queued to an unbound wq are served by the special worker-pools which host workers which are not bound to any -- 2.49.0
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