| Date | Wed, 26 May 2021 17:02:20 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v7 08/22] cpuset: Don't use the cpu_possible_mask as a last resort for cgroup v1 |
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On Tue, May 25, 2021 at 04:14:18PM +0100, Will Deacon wrote: > void cpuset_cpus_allowed_fallback(struct task_struct *tsk) > { > + const struct cpumask *cs_mask; > + const struct cpumask *possible_mask = task_cpu_possible_mask(tsk); > + > rcu_read_lock(); > + cs_mask = task_cs(tsk)->cpus_allowed; > + > + if (!is_in_v2_mode() || !cpumask_subset(cs_mask, possible_mask)) > + goto unlock; /* select_fallback_rq will try harder */ > + > + do_set_cpus_allowed(tsk, cs_mask); > +unlock:
if (is_in_v2_mode() && cpumask_subset(cs_mask, possible_mask)) do_set_cpus_allowed(tsk, cs_mask);
perhaps?
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