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| author | Pavel Begunkov <asml.silence@gmail.com> | 2020-01-22 21:09:35 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-01-22 21:57:46 +0100 |
| commit | 1118591ab883f46df4ab614cc976bc4c8e04a464 (patch) | |
| tree | 50adb45f27ed9fd54e54925a662d09f467f10ce0 /fs/io_uring.c | |
| parent | io_uring: use labeled array init in io_op_defs (diff) | |
| download | linux-1118591ab883f46df4ab614cc976bc4c8e04a464.tar.xz linux-1118591ab883f46df4ab614cc976bc4c8e04a464.zip | |
io_uring: prep req when do IOSQE_ASYNC
Whenever IOSQE_ASYNC is set, requests will be punted to async without
getting into io_issue_req() and without proper preparation done (e.g.
io_req_defer_prep()). Hence they will be left uninitialised.
Prepare them before punting.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 09503d1e9e45..cdbc711ae5fd 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -4558,11 +4558,15 @@ static void io_queue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe) ret = io_req_defer(req, sqe); if (ret) { if (ret != -EIOCBQUEUED) { +fail_req: io_cqring_add_event(req, ret); req_set_fail_links(req); io_double_put_req(req); } } else if (req->flags & REQ_F_FORCE_ASYNC) { + ret = io_req_defer_prep(req, sqe); + if (unlikely(ret < 0)) + goto fail_req; /* * Never try inline submit of IOSQE_ASYNC is set, go straight * to async execution. |