Re: [PATCH 04 of 12] Moves all mmu notifier methods outside the PTlock (first and not last

[Avi Kivity]

Robin Holt wrote:
> > an hurry like we are, we can't progress without this. Infact we can
> >     
>
> SGI is under an equally strict timeline.  We really needed the sleeping
> version into 2.6.26.  We may still be able to get this accepted by
> vendor distros if we make 2.6.27.
>   

The difference is that the non-sleeping variant can be shown not to 
affect stability or performance, even if configed in, as long as its not 
used.  The sleeping variant will raise performance and stability concerns.

I have zero objections to sleeping mmu notifiers; I only object to tying 
the schedules of the two together.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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