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io_uring: improve io_double_lock_ctx fail handling

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commit 4c979eaefa upstream.

msg_ring will fail the request if it can't lock rings, instead punt it
to io-wq as was originally intended.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4697f05afcc37df5c8f89e2fe6d9c7c19f0241f9.1670384893.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pavel Begunkov
2022-12-07 03:53:27 +00:00
committed by Greg Kroah-Hartman
parent f6a5cada4f
commit e2c22a38fe
1 changed files with 2 additions and 0 deletions
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2
io_uring/msg_ring.c
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@@ -164,6 +164,8 @@ int io_msg_ring(struct io_kiocb *req, unsigned int issue_flags)
}
done:
if (ret == -EAGAIN)
return -EAGAIN;
if (ret < 0)
req_set_fail(req);
io_req_set_res(req, ret, 0);