Re: [PATCH 2/3] make new alloc_pages_exact()

[Timur Tabi]

Dave Hansen wrote:
> 
> What I really wanted in the end was a highmem-capable
> alloc_pages_exact(), so here it is.  This function can be used to
> allocate unmapped (like highmem) non-power-of-two-sized areas of
> memory.  This is in constast to get_free_pages_exact() which can only
> allocate from lowmem.

Is there an easy way to verify that alloc_pages_exact(5MB) really does allocate
only 5MB and not 8MB?  Is there some kind of function that returns the amount of
unallocated memory, so I can do a diff?

-- 
Timur Tabi
Linux kernel developer at Freescale

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