Re: [RFC 4/5] x86, Use NMI return notifier in MCE

[Andi Kleen <andi@firstfloor.org>]

Huang Ying <ying.huang@intel.com> writes:

Hi Ying,

>  {
>  	if (regs->flags & (X86_VM_MASK|X86_EFLAGS_IF)) {
> -		mce_notify_irq();
> -		/*
> -		 * Triggering the work queue here is just an insurance
> -		 * policy in case the syscall exit notify handler
> -		 * doesn't run soon enough or ends up running on the
> -		 * wrong CPU (can happen when audit sleeps)
> -		 */
> -		mce_schedule_work();
> +		__mce_report_event(NULL);

Do we still handle the CPU switch case correctly?

The backend handler needs to run on the same CPU to process the per
CPU mce pfns.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.