io_uring: clean up io_close

to #28170604

commit a2100672f3b2afdd55ccc2e640d1a8bd99ff6338 upstream

Don't abuse labels for plain and straightworward code.
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Acked-by: NJoseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: NXiaoguang Wang <xiaoguang.wang@linux.alibaba.com>

fs/io_uring.c

@@ -3037,16 +3037,7 @@ static int io_close(struct io_kiocb *req, struct io_kiocb **nxt,
 		return ret;
 
 	/* if the file has a flush method, be safe and punt to async */
-	if (req->close.put_file->f_op->flush && !io_wq_current_is_worker())
-		goto eagain;
-
-	/*
-	 * No ->flush(), safely close from here and just punt the
-	 * fput() to async context.
-	 */
-	__io_close_finish(req, nxt);
-	return 0;
-eagain:
+	if (req->close.put_file->f_op->flush && force_nonblock) {
 		req->work.func = io_close_finish;
 		/*
 		 * Do manual async queue here to avoid grabbing files - we don't
@@ -3055,6 +3046,14 @@ static int io_close(struct io_kiocb *req, struct io_kiocb **nxt,
 		 */
 		io_queue_async_work(req);
 		return 0;
+	}
+
+	/*
+	 * No ->flush(), safely close from here and just punt the
+	 * fput() to async context.
+	 */
+	__io_close_finish(req, nxt);
+	return 0;
 }
 
 static int io_prep_sfr(struct io_kiocb *req, const struct io_uring_sqe *sqe)