diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index ae7a9545b877..10070cd867b4 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -440,7 +440,11 @@ void io_queue_iowq(struct io_kiocb *req, bool *dont_use) struct io_uring_task *tctx = req->task->io_uring; BUG_ON(!tctx); - BUG_ON(!tctx->io_wq); + + if ((current->flags & PF_KTHREAD) || !tctx->io_wq) { + io_req_task_queue_fail(req, -ECANCELED); + return; + } /* init ->work of the whole link before punting */ io_prep_async_link(req);