Re: [PATCH] i386/kernel/smp.c: don't use set_irq_regs()

* Oleg Nesterov <oleg@tv-sign.ru> wrote:

> We don't need to setup _irq_regs in smp_xxx_interrupt (except apic 
> timer). These handlers run with irqs disabled and do not call 
> functions which need "struct pt_regs".
> 
> Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>

yeah. These are leftover inefficiencies from the ptregs conversion, 
which just added a regs variable to every arch-level irq handler 
blindly.

Acked-by: Ingo Molnar <mingo@elte.hu>

	Ingo
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References:
- [PATCH] i386/kernel/smp.c: don't use set_irq_regs()
  - From: Oleg Nesterov <oleg@tv-sign.ru>

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