AcoSail/kernel_optimize_test
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cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.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 14:14:31 -07:00 committed by Ingo Molnar
parent 65c0118453
commit cb6d2be60d
1 changed files with 1 additions and 3 deletions
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arch/x86/kernel/io_apic_64.c
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@ -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;