Nick Piggin wrote:

No it doesn't increase ZONE_NORMAL scanning. The scanning is the same 
rate,
but because ZONE_NORMAL is 1/4 the size, it has quadruple the 
pressure. If
you don't like logic, just pretend it is pinned by mem_map and other 
things.
Your batching patch is conceptually wrong and it adds complexity.

An unfortunate typo. I was supposed to say "if you don't like *that* logic",
not "if you don't like logic"...

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