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io_uring: fix missing set of EPOLLONESHOT for CQ ring overflow
[ Upstream commit a62682f ] We should set EPOLLONESHOT if cqring_fill_event() returns false since io_poll_add() decides to put req or not by it. Fixes: 5082620 ("io_uring: terminate multishot poll for CQ ring overflow") Signed-off-by: Hao Xu <haoxu@linux.alibaba.com> Link: https://lore.kernel.org/r/20210922101238.7177-3-haoxu@linux.alibaba.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
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