io_uring: simplify io_req_link_next()

"if (nxt)" is always true, as it was checked in the while's condition.
io_wq_current_is_worker() is unnecessary, as non-async callers don't
pass nxt, so io_queue_async_work() will be called for them anyway.

Signed-off-by: Pavel Begunkov <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 95deb45e89cfb7b17368c209aa447141f752dbce..f6f5871bd7d2ef8ddcb121b781836e1f10bd3e9b 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -903,16 +903,7 @@ static void io_req_link_next(struct io_kiocb *req, struct io_kiocb **nxtptr)
                        nxt->flags |= REQ_F_LINK;
                }
 
-               /*
-                * If we're in async work, we can continue processing the chain
-                * in this context instead of having to queue up new async work.
-                */
-               if (nxt) {
-                       if (io_wq_current_is_worker())
-                               *nxtptr = nxt;
-                       else
-                               io_queue_async_work(nxt);
-               }
+               *nxtptr = nxt;
                break;
        }