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io_uring: fix FORCE_ASYNC req preparation 

As for other not inlined requests, alloc req->io for FORCE_ASYNC reqs,
so they can be prepared properly.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2020-05-17 14:02:12 +03:00 committed by Jens Axboe
parent 650b548129
commit bd2ab18a1d
1 changed files with 9 additions and 3 deletions
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12
fs/io_uring.c
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@ -5608,9 +5608,15 @@ fail_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;
if (!req->io) {
ret = -EAGAIN;
if (io_alloc_async_ctx(req))
goto fail_req;
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.