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

>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.


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