Merge "genirq: Don't allow user space to set IRQ affinity to isolated CPUs"

kernel/irq/proc.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -114,6 +114,11 @@ static ssize_t write_irq_affinity(int type, struct file *file,
		goto free_cpumask;
		}

		if (cpumask_subset(new_value, cpu_isolated_mask)) {
		err = -EINVAL;
		goto free_cpumask;
		}

		/*
		* Do not allow disabling IRQs completely - it's a too easy
		* way to make the system unusable accidentally :-) At least