Re: Physical memory layout

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On 7/19/05, Martin Jambor <jamborm@xxxxxxxxx> wrote:
> 
> 
> What about alloc_pages, is there any similar constraint (I need about
> half a megabyte)?
> 

alloc_pages provides memory allocation in the form of pages which can
allocate pages according to the order provided, so you can get around
half MB or more easily ......

> And, BTW, is there any way of getting pointers to individual struct
> pages corresponding to memory obtained with vmalloc?
> 

ya, of course you can get struct pages from the memory allocated by
vmalloc ..... look/use the macro defined in asm/page.h

                  virt_to_page(kaddr)

It actually gives you the pointer to page to which that virtual
address points to ...... but u might have to consider the offsets in
the page tooo for the first and last virtual address (that is the
12-bits of LSB)


-- 
Fawad Lateef

--
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