Re: [PATCH 01/15] sched/isolation: Support dynamic allocation for housekeeping masks

Frederic Weisbecker
2026-03-31T09:31:52Z

Hi,

Le Wed, Mar 25, 2026 at 05:09:32PM +0800, Qiliang Yuan a écrit :
> The existing housekeeping infrastructure uses a single static cpumask
> for all isolation types. This prevents independent runtime
> reconfiguration of different services (like RCU vs. timers).
>
> Introduce dynamic allocation for housekeeping masks to support DHEI.
>
> This allows subsequent patches to manage service-specific masks
> independently at runtime.
>
> Signed-off-by: Qiliang Yuan <realwujing@gmail.com>

Have a look at housekeeping_update(), it should provide the basis
for what you want. But I think Waiman is already working on making
nohz_full dynamically configurable.

Thanks.

--
Frederic Weisbecker
SUSE Labs