Messages in this thread |  | | | Subject | Re: [PATCH][RFC] Add alloc_pages_exact() and free_pages_exact() | | From | (Jonathan Corbet) | | Date | Wed, 14 May 2008 08:05:23 -0600 | |
Timur Tabi writes:
> alloc_pages_exact() is similar to alloc_pages(), except that it allocates
> the minimum number of pages to fulfill the request. This is useful if you
> want to allocate a very large buffer that is slightly larger than an
> even power-of-two number of pages. In that case, alloc_pages() will waste
> a lot of memory.
FWIW, I wished I had something like this when doing the cafe_ccic
driver. I can't really attest to the validity of the core VM stuff, but
I will say that the interface is worth having.
Thanks for doing this!
jon
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