On Thu, 25 May 2023 16:26:26 +0800, Wenwen Chen wrote:
> The sq thread actively releases CPU resources by calling the
> cond_resched() and schedule() interfaces when it is idle. Therefore,
> more resources are available for other threads to run.
>
> There exists a problem in sq thread: it does not unlock sqd->lock before
> releasing CPU resources every time. This makes other threads pending on
> sqd->lock for a long time. For example, the following interfaces all
> require sqd->lock: io_sq_offload_create(), io_register_iowq_max_workers()
> and io_ring_exit_work().
>
> [...]
Applied, thanks!
[1/1] io_uring: unlock sqd->lock before sq thread release CPU
commit: 533ab73f5b5c95dcb4152b52d5482abcc824c690
Best regards,
--
Jens Axboe
