From ff3ac1a0bd75400375678c0f81c2b613cbc03e14 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Tue, 16 Jun 2026 14:39:02 -0700 Subject: [PATCH] io_uring: Use system_dfl_wq instead of system_unbound_wq Commit de7341ffe49e ("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 128ea9f6ccfb ("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: de7341ffe49e ("io_uring: switch normal task_work to a mpscq") Signed-off-by: Nathan Chancellor Link: https://patch.msgid.link/20260616-io_uring-fix-wq-warning-v1-1-cfc9d934eedb@kernel.org Signed-off-by: Jens Axboe --- io_uring/tw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/io_uring/tw.c b/io_uring/tw.c index f2ce806b01a1..a4c872870d81 100644 --- a/io_uring/tw.c +++ b/io_uring/tw.c @@ -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); }