Re: [PATCH 08/29] mm: kmem_cache_objs_to_pages()

[Pekka Enberg]

Hi Peter,

On 2/21/07, Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:
> Provide a method to calculate the number of pages needed to store a given
> number of slab objects (upper bound when considering possible partial and
> free slabs).

So how does this work? You ask the slab allocator how many pages you
need for a given number of objects and then those pages are available
to it via the page allocator? Can other users also dip into those
reserves?

I would prefer we simply have an API for telling the slab allocator to
keep certain number of pages in a reserve for a cache rather than
exposing internals such as object size to rest of the world.

                                Pekka
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