On 12/14/19 7:53 AM, Pavel Begunkov wrote: > There is no reliable way to submit and wait in a single syscall, as > io_submit_sqes() may under-consume sqes (in case of an early error). > Then it will wait for not-yet-submitted requests, deadlocking the user > in most cases. > > In such cases adjust min_complete, so it won't wait for more than > what have been submitted in the current call to io_uring_enter(). It > may be less than totally in-flight including previous submissions, > but this shouldn't do harm and up to a user. Thanks, applied. -- Jens Axboe
