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io_uring: fix mshot read defer taskrun cqe posting
[ Upstream commit 70581dc ] We can't post CQEs from io-wq with DEFER_TASKRUN set, normal completions are handled but aux should be explicitly disallowed by opcode handlers. Cc: stable@vger.kernel.org Fixes: fc68fcd ("io_uring/rw: add support for IORING_OP_READ_MULTISHOT") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/6fb7cba6f5366da25f4d3eb95273f062309d97fa.1709740837.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
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