Re: [Xen-devel] [PATCH RFC v2 1/4] x86/mm: Shadow and p2m changes for PV mem_access

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 04.09.14 at 20:24, <aravindp@xxxxxxxxx> wrote:
>> Did you check whether the suggested list shuffling would require
>>(massive) changes elsewhere (other than in domain cleanup)?
> 
> "What we do in at least one other place is shuffle the list from one list 
> head to another, and put the hole thing back when done. I'm not sure this is 
> a good option here (in particular not going to break that other case, as well 
> as then needing to consider that if there are two sites doing this, there may 
> well appear a third one, and hence the question would become whether this 
> scales)."
> 
> Sorry I did not. From your previous reply I thought this was not a good 
> option as it wouldn't scale. I will look more at this code now.

But Tim's suggestion was an even better one anyway, if it (as both
him and me think it will) results in not too ugly code.

Jan



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