I think that's really the key .... the platforms should just make this
efficient, it's not something for the slab to worry about specifically.
Those of us that have virtual address space to burn can stick it in
struct page, whereas other people (eg me) might have to find some
other way to do it .... but that's the arch people's problem ;-)
> there are some platforms that can do this very efficiently (since
> the nodeid is embedded in some of the high-order address bits), and
> some for which this is complex (e.g. platforms that concatenate
> memory from each node).
M.
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