Re: [PATCH 1/1] io_uring/sqpoll: do not allow pinning outside of cpuset

From: Jens Axboe
Date: Mon Sep 09 2024 - 11:10:17 EST



On Mon, 09 Sep 2024 17:00:36 +0200, Felix Moessbauer wrote:
> The submit queue polling threads are userland threads that just never
> exit to the userland. When creating the thread with IORING_SETUP_SQ_AFF,
> the affinity of the poller thread is set to the cpu specified in
> sq_thread_cpu. However, this CPU can be outside of the cpuset defined
> by the cgroup cpuset controller. This violates the rules defined by the
> cpuset controller and is a potential issue for realtime applications.
>
> [...]

Applied, thanks!

[1/1] io_uring/sqpoll: do not allow pinning outside of cpuset
commit: f011c9cf04c06f16b24f583d313d3c012e589e50

Best regards,
--
Jens Axboe