"If I /agree/ to add it to linux? If anybody implements paging, he's going to get 2 extra copies of linux for free. How's that for an offer?"
Note that the "relatively easy" must be taken with a bit of salt: you
have to add the routines to the paging unit etc etc. No major problems
at least. Also I'd like to keep linux simple even at the cost of some
speed hit, as otherwise it grows until nobody really understands it.