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 |
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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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