Re: [PATCH] Documentation: index.rst: add entry of other sub-directory

[Sebastian Andrzej Siewior]

On 2026-06-03 10:04:31 [+0200], Manuel Ebner wrote:
> add reference to scheduler/sched-rt-group.rst
> 
> Signed-off-by: Manuel Ebner <manuelebner@xxxxxxxxxxx>
> ---
>  Documentation/core-api/real-time/index.rst | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/core-api/real-time/index.rst b/Documentation/core-api/real-time/index.rst
> index f08d2395a22c..661b419e7f8f 100644
> --- a/Documentation/core-api/real-time/index.rst
> +++ b/Documentation/core-api/real-time/index.rst
> @@ -15,3 +15,4 @@ the required changes compared to a non-PREEMPT_RT configuration.
>     differences
>     hardware
>     architecture-porting
> +   Real-Time group scheduling <../../scheduler/sched-rt-group>

Have you been using this and are referencing this because it is useful
or did you just happen to find it?
People have been complaining about this and I *think* it fails to work
in multi-CPU scenarios (it might work if the task is restricted to
single CPU usage). Not entirely certain. But complains, that I am
certain of.
There is replacement underway to utilize SCHED_DL for this as in
"Hierarchical Constant Bandwidth Server (HCBS)"
	https://lore.kernel.org/all/20260430213835.62217-1-yurand2000@xxxxxxxxx/

Sebastian