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dm: add WQ_PERCPU to alloc_workqueue users

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

   commit 128ea9f6cc ("workqueue: Add system_percpu_wq and system_dfl_wq")
   commit 930c2ea566 ("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>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Marco Crivellari
2026-01-13 12:03:02 +01:00
committed by Mikulas Patocka
parent c698b7f417
commit d488086867
16 changed files with 45 additions and 24 deletions
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4
drivers/md/md.c
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@@ -10454,11 +10454,11 @@ static int __init md_init(void)
goto err_bitmap;
ret = -ENOMEM;
md_wq = alloc_workqueue("md", WQ_MEM_RECLAIM, 0);
md_wq = alloc_workqueue("md", WQ_MEM_RECLAIM | WQ_PERCPU, 0);
if (!md_wq)
goto err_wq;
md_misc_wq = alloc_workqueue("md_misc", 0, 0);
md_misc_wq = alloc_workqueue("md_misc", WQ_PERCPU, 0);
if (!md_misc_wq)
goto err_misc_wq;