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Fri, 31 Oct 2025 04:23:04 -0700 (PDT) Received: from localhost.localdomain ([2a00:6d43:105:c401:e307:1a37:2e76:ce91]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-47728ab375asm89060275e9.17.2025.10.31.04.23.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Oct 2025 04:23:04 -0700 (PDT) From: Marco Crivellari To: linux-kernel@vger.kernel.org, timestamp@lists.linux.dev Cc: Tejun Heo , Lai Jiangshan , Frederic Weisbecker , Sebastian Andrzej Siewior , Marco Crivellari , Michal Hocko , Dipen Patel Subject: [PATCH] hte: replace use of system_unbound_wq with system_dfl_wq Date: Fri, 31 Oct 2025 12:22:56 +0100 Message-ID: <20251031112256.149436-1-marco.crivellari@suse.com> X-Mailer: git-send-email 2.51.0 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" Currently if a user enqueue 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. This lack of consistentcy cannot be addressed without refactoring the API. system_unbound_wq should be the default workqueue so as not to enforce locality constraints for random work whenever it's not required. Adding system_dfl_wq to encourage its use when unbound work should be used. The old system_unbound_wq will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari --- drivers/hte/hte.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hte/hte.c b/drivers/hte/hte.c index 23a6eeb8c506..e2804636f2bd 100644 --- a/drivers/hte/hte.c +++ b/drivers/hte/hte.c @@ -826,7 +826,7 @@ int hte_push_ts_ns(const struct hte_chip *chip, u32 xla= ted_id, =20 ret =3D ei->cb(data, ei->cl_data); if (ret =3D=3D HTE_RUN_SECOND_CB && ei->tcb) { - queue_work(system_unbound_wq, &ei->cb_work); + queue_work(system_dfl_wq, &ei->cb_work); set_bit(HTE_TS_QUEUE_WK, &ei->flags); } =20 --=20 2.51.0