Commit 0492007e authored by Ingo Molnar's avatar Ingo Molnar

x86: make nmi_cpu_busy() always defined

nmi_cpu_busy() must be available on !SMP too.

this is in preparation to a smp_call_function_mask() fix.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 4e2947f1
......@@ -51,13 +51,13 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu);
static int endflag __initdata = 0;
#ifdef CONFIG_SMP
/* The performance counters used by NMI_LOCAL_APIC don't trigger when
* the CPU is idle. To make sure the NMI watchdog really ticks on all
* CPUs during the test make them busy.
*/
static __init void nmi_cpu_busy(void *data)
{
#ifdef CONFIG_SMP
local_irq_enable_in_hardirq();
/* Intentionally don't use cpu_relax here. This is
to make sure that the performance counter really ticks,
......@@ -67,8 +67,8 @@ static __init void nmi_cpu_busy(void *data)
care if they get somewhat less cycles. */
while (endflag == 0)
mb();
}
#endif
}
static int __init check_nmi_watchdog(void)
{
......
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