cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c (cb6d2be6) · Commits · 戴 / test

* Optimize various places where a pointer to the cpumask_of_cpu value will result in reducing stack pressure. Signed-off-by:

arch/x86/kernel/io_apic_64.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -1372,12 +1372,10 @@ static unsigned int startup_ioapic_irq(unsigned int irq)
		static int ioapic_retrigger_irq(unsigned int irq)
		{
		struct irq_cfg *cfg = &irq_cfg[irq];
		cpumask_t mask;
		unsigned long flags;

		spin_lock_irqsave(&vector_lock, flags);
		mask = cpumask_of_cpu(first_cpu(cfg->domain));
		send_IPI_mask(mask, cfg->vector);
		send_IPI_mask(cpumask_of_cpu(first_cpu(cfg->domain)), cfg->vector);
		spin_unlock_irqrestore(&vector_lock, flags);

		return 1;