-
由 Jens Axboe 提交于
Some file descriptors use separate waitqueues for their f_ops->poll() handler, most commonly one for read and one for write. The io_uring poll implementation doesn't work with that, as the 2nd poll_wait() call will cause the io_uring poll request to -EINVAL. This affects (at least) tty devices and /dev/random as well. This is a big problem for event loops where some file descriptors work, and others don't. With this fix, io_uring handles multiple waitqueues. Signed-off-by: NJens Axboe <axboe@kernel.dk>
18bceab1