Commit d3b35796 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

io_uring: break links for failed defer 



If io_req_defer() failed, it needs to cancel a dependant link.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent b2e9c7d6

fs/io_uring.c

+4 −0
Original line number Diff line number Diff line
@@ -2958,6 +2958,8 @@ static void io_queue_sqe(struct io_kiocb *req) 
	if (ret) {

		if (ret != -EIOCBQUEUED) {

			io_cqring_add_event(req, ret);

			if (req->flags & REQ_F_LINK)

				req->flags |= REQ_F_FAIL_LINK;

			io_double_put_req(req);

		}

	} else
@@ -2990,6 +2992,8 @@ static void io_queue_link_head(struct io_kiocb *req, struct io_kiocb *shadow) 
		if (ret != -EIOCBQUEUED) {

err:

			io_cqring_add_event(req, ret);

			if (req->flags & REQ_F_LINK)

				req->flags |= REQ_F_FAIL_LINK;

			io_double_put_req(req);

			if (shadow)

				__io_free_req(shadow);