Re: [PATCH -v5] x86: MCE: Re-implement MCE log ring buffer asper-CPU ring buffer

[Huang Ying]

On Mon, 2009-06-08 at 15:20 +0800, Ingo Molnar wrote:
> * Huang Ying <ying.huang@xxxxxxxxx> wrote:
> 
> > Re-implement MCE log ring buffer as per-CPU ring buffer for better 
> > scalability.
> 
> this should be done using the generic ring-buffer code - see 
> include/linux/ring_buffer.h. Having a private implementation in 
> architecture code is not really acceptable.

MCE log ring buffer need to be NMI-safe, while current generic
ring-buffer code is not NMI safe. Maybe we can use the generic
ring-buffer code after it goes NMI-safe. But for now, I think this patch
is better.

Best Regards,
Huang Ying


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