On 9/8/21 1:10 PM, Pavel Begunkov wrote: > Make read_iter_zero() to honor IOCB_NOWAIT, so /dev/zero can be > advertised as FMODE_NOWAIT. It's useful for io_uring, which needs it to > apply certain optimisations when doing I/O against the device. > > Set FMODE_NOWAIT for /dev/null as well, it never waits and therefore > trivially meets the criteria. Reviewed-by: Jens Axboe <axboe@xxxxxxxxx> -- Jens Axboe
