Problem when disabled interrupt in system call (ppc8270)

[wilbur.chan]

2009/10/16, Benjamin Herrenschmidt <benh at kernel.crashing.org>:
> On Fri, 2009-10-16 at 09:12 +0800, wilbur.chan wrote:
>
>> static inline unsigned long local_irq_disable(void)
>> {
>> 	unsigned long flags, zero;
>>
>> 	__asm__ __volatile__("li %1,0; lbz %0,%2(13); stb %1,%2(13)"
>> 	: "=r" (flags), "=&r" (zero)
>> 	: "i" (offsetof(struct paca_struct, soft_enabled))
>> 	: "memory");
>>
>> 	return flags;
>> }
>
> This is not the variant of local_irq_disable() used on that machine :-)
>
> The above is the 64-bit version.
>
> Ben.
Hmmm...

I just called  local_irq_disable in sys_reboot, but actually, I don't
know which

local_irq_disable  function it really called , So I just paste one of
them here ...