io_uring: fix lost cqe->flags

Don't forget to fill cqe->flags properly in io_submit_flush_completions()

Fixes: a1d7c393c4711 ("io_uring: enable READ/WRITE to use deferred completions")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 7147e87a24b5093cfee0ba96a27e2d4f711300bc..9464f9470bbc242c0b65d1d925c2f59a66daffc6 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1416,7 +1416,7 @@ static void io_submit_flush_completions(struct io_comp_state *cs)
 
                req = list_first_entry(&cs->list, struct io_kiocb, list);
                list_del(&req->list);
-               io_cqring_fill_event(req, req->result);
+               __io_cqring_fill_event(req, req->result, req->cflags);
                if (!(req->flags & REQ_F_LINK_HEAD)) {
                        req->flags |= REQ_F_COMP_LOCKED;
                        io_put_req(req);
@@ -1441,6 +1441,7 @@ static void __io_req_complete(struct io_kiocb *req, long res, unsigned cflags,
                io_put_req(req);
        } else {
                req->result = res;
+               req->cflags = cflags;
                list_add_tail(&req->list, &cs->list);
                if (++cs->nr >= 32)
                        io_submit_flush_completions(cs);