On Thu, 29 Feb 2024 16:36:37 +0000, Pavel Begunkov wrote:
> With defer taskrun we store aux cqes into a cache array and then flush
> into the CQ, and we also maintain the ordering so aux cqes are flushed
> before request completions. Why do we need the cache instead of pushing
> them directly? We acutally don't, so let's kill it.
>
> One nuance is synchronisation -- the path we touch here is only for
> DEFER_TASKRUN and guaranteed to be executed in the task context, and
> all cqe posting is serialised by that. We also don't need locks because
> of that, see __io_cq_lock().
>
> [...]
Applied, thanks!
[1/1] io_uring: get rid of intermediate aux cqe caches
commit: a7fa76c8565aa6cbeb5030a6597d85643de0a306
Best regards,
--
Jens Axboe
