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cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c

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* Optimize various places where a pointer to the cpumask_of_cpu value
    will result in reducing stack pressure.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mike Travis 2008-07-15 14:14:32 -07:00 committed by Ingo Molnar
parent cb6d2be60d
commit c42f4f4c6d
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kernel/ldt.c
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@ -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