On 5/1/20 11:53 AM, Jens Axboe wrote:
> eventfd is using ->read() as it's file_operations read handler, but
> this prevents passing in information about whether a given IO operation
> is blocking or not. We can only use the file flags for that. To support
> async (-EAGAIN/poll based) retries for
eventfd is using ->read() as it's file_operations read handler, but
this prevents passing in information about whether a given IO operation
is blocking or not. We can only use the file flags for that. To support
async (-EAGAIN/poll based) retries for io_uring, we need ->read_iter()
support.
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