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io_uring: Use system_dfl_wq instead of system_unbound_wq

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Commit de7341ffe4 ("io_uring: switch normal task_work to a mpscq")
added a use of system_unbound_wq, which is deprecated in favor of
system_dfl_wq added by commit 128ea9f6cc ("workqueue: Add
system_percpu_wq and system_dfl_wq"). An upcoming warning in the
workqueue tree flags this with:

  workqueue: work func io_tctx_fallback_work enqueued on deprecated workqueue. Use system_{percpu|dfl}_wq instead.

Switch to system_dfl_wq to clear up the warning.

Fixes: de7341ffe4 ("io_uring: switch normal task_work to a mpscq")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20260616-io_uring-fix-wq-warning-v1-1-cfc9d934eedb@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Nathan Chancellor
2026-06-16 14:39:02 -07:00
committed by Jens Axboe
parent 1fe703cc70
commit ff3ac1a0bd
1 changed files with 1 additions and 1 deletions
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2
io_uring/tw.c
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@@ -51,7 +51,7 @@ static void io_fallback_tw(struct io_uring_task *tctx)
* the queued work) stay around until the drain has run.
*/
get_task_struct(tctx->task);
if (!queue_work(system_unbound_wq, &tctx->fallback_work))
if (!queue_work(system_dfl_wq, &tctx->fallback_work))
put_task_struct(tctx->task);
}