On Thu, Jan 23, 2020 at 12:13:57PM -0700, Jens Axboe wrote: > On 1/16/20 10:03 AM, Stefano Garzarella wrote: > > On Thu, Jan 16, 2020 at 09:30:12AM -0700, Jens Axboe wrote: > >> On 1/16/20 9:26 AM, Stefano Garzarella wrote: > >>>> Since the use case is mostly single submitter, unless you're doing > >>>> something funky or unusual, you're not going to be needing POLLOUT ever. > >>> > >>> The case that I had in mind was with kernel side polling enabled and > >>> a single submitter that can use epoll() to wait free slots in the SQ > >>> ring. (I don't have a test, maybe I can write one...) > >> > >> Right, I think that's the only use case where it makes sense, because > >> you have someone else draining the sq side for you. A test case would > >> indeed be nice, liburing has a good arsenal of test cases and this would > >> be a good addition! > > > > Sure, I'll send a test to liburing for this case! > > Gentle ping on the test case :-) > Yes, you are right :-) I was a little busy this week to finish some works before DevConf. I hope to work on the test case these days, so by Monday I hope I have it ;-) Cheers, Stefano
