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From: Marco Crivellari <marco.crivellari@suse.com>
To: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org
Cc: Tejun Heo <tj@kernel.org>, Lai Jiangshan <jiangshanlai@gmail.com>,
	Frederic Weisbecker <frederic@kernel.org>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Marco Crivellari <marco.crivellari@suse.com>,
	Michal Hocko <mhocko@suse.com>, Christoph Hellwig <hch@lst.de>,
	Sagi Grimberg <sagi@grimberg.me>,
	Chaitanya Kulkarni <kch@nvidia.com>,
	Justin Tee <justin.tee@broadcom.com>,
	Naresh Gottumukkala <nareshgottumukkala83@gmail.com>,
	Paul Ely <paul.ely@broadcom.com>
Subject: [PATCH v2 3/3] nvmet-fc: add WQ_PERCPU to alloc_workqueue users
Date: Mon, 23 Feb 2026 11:23:29 +0100	[thread overview]
Message-ID: <20260223102336.108512-4-marco.crivellari@suse.com> (raw)
In-Reply-To: <20260223102336.108512-1-marco.crivellari@suse.com>

This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:

   commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
   commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.

With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.

In order to keep alloc_workqueue() behavior identical, explicitly request
WQ_PERCPU.

Cc: Justin Tee <justin.tee@broadcom.com>
Cc: Naresh Gottumukkala <nareshgottumukkala83@gmail.com>
CC: Paul Ely <paul.ely@broadcom.com>
Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
---
 drivers/nvme/target/fc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index 4eaadc711c99..d161707559ce 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -792,9 +792,9 @@ nvmet_fc_alloc_target_queue(struct nvmet_fc_tgt_assoc *assoc,
 	if (!queue)
 		return NULL;
 
-	queue->work_q = alloc_workqueue("ntfc%d.%d.%d", 0, 0,
-				assoc->tgtport->fc_target_port.port_num,
-				assoc->a_id, qid);
+	queue->work_q = alloc_workqueue("ntfc%d.%d.%d", WQ_PERCPU, 0,
+					assoc->tgtport->fc_target_port.port_num,
+					assoc->a_id, qid);
 	if (!queue->work_q)
 		goto out_free_queue;
 
-- 
2.52.0


  parent reply	other threads:[~2026-02-23 10:23 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-23 10:23 [PATCH v2 0/3] replace old wq(s), added WQ_PERCPU to alloc_workqueue Marco Crivellari
2026-02-23 10:23 ` [PATCH v2 1/3] nvmet: replace use of system_wq with system_percpu_wq Marco Crivellari
2026-03-20  7:57   ` Christoph Hellwig
2026-03-20  8:30     ` Sebastian Andrzej Siewior
2026-02-23 10:23 ` [PATCH v2 2/3] nvme: add WQ_PERCPU to alloc_workqueue users Marco Crivellari
2026-03-20  7:58   ` Christoph Hellwig
2026-02-23 10:23 ` Marco Crivellari [this message]
2026-03-20  7:58   ` [PATCH v2 3/3] nvmet-fc: " Christoph Hellwig
2026-03-24 15:23 ` [PATCH v2 0/3] replace old wq(s), added WQ_PERCPU to alloc_workqueue Keith Busch
2026-03-24 15:30   ` Marco Crivellari

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