Re: [PATCH v8 6/7] cgroup/cpuset: Fail if isolated and nohz_full don't leave any housekeeping

[Frederic Weisbecker]

Le Mon, Jul 14, 2025 at 03:30:57PM +0200, Gabriele Monaco a écrit :
> Currently the user can set up isolated cpus via cpuset and nohz_full in
> such a way that leaves no housekeeping CPU (i.e. no CPU that is neither
> domain isolated nor nohz full). This can be a problem for other
> subsystems (e.g. the timer wheel imgration).
> 
> Prevent this configuration by blocking any assignation that would cause
> the union of domain isolated cpus and nohz_full to covers all CPUs.
> 
> Signed-off-by: Gabriele Monaco <gmonaco@xxxxxxxxxx>

Acked-by: Frederic Weisbecker <frederic@xxxxxxxxxx>

-- 
Frederic Weisbecker
SUSE Labs