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Commit 20ab0128 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "sched: core: Exclude isolated cpus in sched_getaffinity cpumask"

parents 335cf653 24a7d0a6

kernel/sched/core.c

+9 −0
Original line number Diff line number Diff line
@@ -4914,6 +4914,15 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask) 


	raw_spin_lock_irqsave(&p->pi_lock, flags);

	cpumask_and(mask, &p->cpus_allowed, cpu_active_mask);



	/*

	 * The userspace tasks are forbidden to run on

	 * isolated CPUs. So exclude isolated CPUs from

	 * the getaffinity.

	 */

	if (!(p->flags & PF_KTHREAD))

		cpumask_andnot(mask, mask, cpu_isolated_mask);



	raw_spin_unlock_irqrestore(&p->pi_lock, flags);



out_unlock: