From: Pavel Begunkov <asml.silence@gmail.com>
Date: Thu, 23 Jul 2020 17:17:20 +0000 (+0300)
Subject: io_uring: missed req_init_async() for IOSQE_ASYNC
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3e863ea3bb1a2203ae648eb272db0ce6a1a2072c;p=linux.git

io_uring: missed req_init_async() for IOSQE_ASYNC

IOSQE_ASYNC branch of io_queue_sqe() is another place where an
unitialised req->work can be accessed (i.e. prior io_req_init_async()).
Nothing really bad though, it just looses IO_WQ_WORK_CONCURRENT flag.

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 d99802ac166f3..32b0064f806ef 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5730,6 +5730,7 @@ fail_req:
 		 * Never try inline submit of IOSQE_ASYNC is set, go straight
 		 * to async execution.
 		 */
+		io_req_init_async(req);
 		req->work.flags |= IO_WQ_WORK_CONCURRENT;
 		io_queue_async_work(req);
 	} else {