On Thu, 2022-04-21 at 17:33 -0600, Jens Axboe wrote: > On Thu, Apr 21, 2022 at 3:17 AM Dylan Yudaken <dylany@xxxxxx> wrote: > > > > This is useful for tests so that IOPOLL can be tested without > > requiring > > files. NOP is acceptable in IOPOLL as it always completes > > immediately. > > This one actually breaks two liburing test cases (link and defer) > that > assume NOP on IOPOLL will return -EINVAL. Not a huge deal, but we do > need to figure out how to make them reliably -EINVAL in a different > way then. > > Maybe add a nop_flags to the usual flags spot in the sqe, and define > a flag that says NOP_IOPOLL or something. Require this flag set for > allowing NOP on iopoll. That'd allow testing, but still retain the > -EINVAL behavior if not set. > > Alternatively, modify test cases... > > I'll drop this one for now, just because it fails the regression > tests. > That's fine - sorry I didn't notice that. I think fixing the tests is the better approach here. It should be easy to get an -EINVAL from it.