cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c (c42f4f4c) · 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/ldt.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -62,12 +62,12 @@ static int alloc_ldt(mm_context_t *pc, int mincount, int reload)

		if (reload) {
		#ifdef CONFIG_SMP
		cpumask_t mask;
		cpumask_of_cpu_ptr_declare(mask);

		preempt_disable();
		load_LDT(pc);
		mask = cpumask_of_cpu(smp_processor_id());
		if (!cpus_equal(current->mm->cpu_vm_mask, mask))
		cpumask_of_cpu_ptr_next(mask, smp_processor_id());
		if (!cpus_equal(current->mm->cpu_vm_mask, *mask))
		smp_call_function(flush_ldt, current->mm, 1);
		preempt_enable();
		#else