Re: [PATCH 06/15] sched/core: Dynamically update scheduler domain housekeeping mask

[Qiliang Yuan]

On Wed, Mar 25, 2026 at 03:00:53PM +0100, Peter Zijlstra wrote:
> Sched domain boundaries are not static, they are easily changed by 
> cpuset partition (v1 and v2 both support this).

You're absolutely right. My description was imprecise. The goal of this 
patch was to ensure that the housekeeping mask for scheduler domains 
follows the partition boundaries dynamically as they are resized.

In V13, I will explicitly integrate the housekeeping update logic 
directly with `cpuset.cpus.partition` transitions. This way, any change 
to the isolation level of a partition will automatically update 
the kernel-internal housekeeping state, avoiding any parallel management 
logic.