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