Re: Re : sparsemem usage

From: Alan Cox
Date: Wed Aug 02 2006 - 12:12:15 EST

Ar Mer, 2006-08-02 am 15:33 +0000, ysgrifennodd moreau francis:
> > sections but nothing stops you marking most of the 2Mb section except
> > the 128K that exists as "in use"
> ok. But it will make pfn_valid() return "valid" for page beyond the first 128 KB.
> Won't that result in bad impacts later ?

Mapping out parts of a section is quite normal - think about the 640K to
1Mb hole in PC memory space.


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