On 1/23/23 1:56 PM, Pavel Begunkov wrote: > On 1/23/23 18:25, Jens Axboe wrote: >> On 1/23/23 7:37 AM, Pavel Begunkov wrote: >>> We return POLLIN from io_uring_poll() depending on whether there are >>> CQEs for the userspace, and so we should use the user visible tail >>> pointer instead of a transient cached value. >> >> Should we mark this one for stable as well? > Yeah, we can. It makes it to overestimate the number of ready CQEs > and causes spurious POLLINs, but should be extremely rare and happen > only on queue (but not wq wake up). Right, it's not critical, but we may as well. -- Jens Axboe
