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

[Peter Zijlstra]

On Wed, Mar 25, 2026 at 05:09:32PM +0800, Qiliang Yuan wrote:
> 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).

I think I asked this a while ago; why do we have more than one mask?
What is the actual purpose of being able to separate RCU from Timers?