From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>, io-uring@vger.kernel.org
Subject: [PATCH 5.8] io_uring: missed req_init_async() for IOSQE_ASYNC
Date: Thu, 23 Jul 2020 20:17:20 +0300 [thread overview]
Message-ID: <fded2ef29b36bcdba4e9faf2de6a1ef2097c6bbb.1595441706.git.asml.silence@gmail.com> (raw)
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>
---
fs/io_uring.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index d99802ac166f..32b0064f806e 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5730,6 +5730,7 @@ static void io_queue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe)
* 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 {
--
2.24.0
next reply other threads:[~2020-07-23 17:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 17:17 Pavel Begunkov [this message]
2020-07-23 18:07 ` [PATCH 5.8] io_uring: missed req_init_async() for IOSQE_ASYNC Jens Axboe
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