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[178.79.73.218]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-429dc1fdef7sm11938330f8f.43.2025.11.05.08.44.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Nov 2025 08:44:24 -0800 (PST) From: Jernej =?UTF-8?B?xaBrcmFiZWM=?= To: linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, Marco Crivellari Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Vinod Koul , Kishon Vijay Abraham I , Chen-Yu Tsai , Samuel Holland Subject: Re: [PATCH] phy: sun4i-usb: replace use of system_wq with system_percpu_wq Date: Wed, 05 Nov 2025 17:44:22 +0100 Message-ID: <12772271.O9o76ZdvQC@jernej-laptop> In-Reply-To: <20251105152023.259813-1-marco.crivellari@suse.com> References: <20251105152023.259813-1-marco.crivellari@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Dne sreda, 5. november 2025 ob 16:20:23 Srednjeevropski standardni =C4=8Das= je Marco Crivellari napisal(a): > Currently if a user enqueues a work item using schedule_delayed_work() the > used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use > WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to > schedule_work() that is using system_wq and queue_work(), that makes use > again of WORK_CPU_UNBOUND. >=20 > This lack of consistency cannot be addressed without refactoring the API. >=20 > This patch continues the effort to refactor worqueue APIs, which has begun > with the change introducing new workqueues and a new alloc_workqueue flag: >=20 > commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") > commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") >=20 > Replace system_wq with system_percpu_wq, keeping the same behavior. > The old wq (system_wq) will be kept for a few release cycles. >=20 > Suggested-by: Tejun Heo > Signed-off-by: Marco Crivellari Reviewed-by: Jernej Skrabec Best regards, Jernej