Re: [PATCH 2.6.21] cramfs: add cramfs Linear XIP

[Jared Hulbert]

> The downside: We need mem_map[] struct page entries behind all memory
> segments. Nowerdays we can easily create those via vmem_map/sparsemem.
>
> Opinions?

Frankly this is going to be mostly relevant on ARM architectures at
least at first.  Maybe I'm missing something but I don't see that
sparemem is supported on ARM...
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