Re: uarea swap-out

[der Mouse <mouse%Rodents-Montreal.ORG@localhost>]

> As page sizes increase, we also need to deal with subpage uareas.

Why?  Is it really worth recovering the rest of the page containing the
uarea?  While there certainly are machines so small that that much
memory is worth thinking about, I'm inclined to doubt that that occurs
together with pages big enough that a subpage uarea is an issue.

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