[PATCH] block: Add WQ_PERCPU to alloc_workqueue users

Marco Crivellari posted 1 patch 3 weeks, 4 days ago
block/bio-integrity-auto.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] block: Add WQ_PERCPU to alloc_workqueue users
Posted by Marco Crivellari 3 weeks, 4 days ago
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.

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>
---
 block/bio-integrity-auto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/bio-integrity-auto.c b/block/bio-integrity-auto.c
index 9850c338548d..394bfa894321 100644
--- a/block/bio-integrity-auto.c
+++ b/block/bio-integrity-auto.c
@@ -195,7 +195,7 @@ static int __init blk_integrity_auto_init(void)
 	 * Make it highpri CPU intensive wq with max concurrency of 1.
 	 */
 	kintegrityd_wq = alloc_workqueue("kintegrityd", WQ_MEM_RECLAIM |
-					 WQ_HIGHPRI | WQ_CPU_INTENSIVE, 1);
+					 WQ_HIGHPRI | WQ_CPU_INTENSIVE | WQ_PERCPU, 1);
 	if (!kintegrityd_wq)
 		panic("Failed to create kintegrityd\n");
 	return 0;
-- 
2.52.0