On Friday 14 December 2007 07:39, Peter Zijlstra wrote:
> Provide a method to get the upper bound on the pages needed to
> allocate a given number of objects from a given kmem_cache.
>
> This lays the foundation for a generic reserve framework as presented
> in a later patch in this series. This framework needs to convert
> object demand (kmalloc() bytes, kmem_cache_alloc() objects) to pages.
And hence the big idea that all reserve accounting can be done in units
of pages, allowing the use of a single global reserve that already
exists.
The other big idea here is that reserve accounting can be independent of
the actual resource allocations. This is a powerful idea which we may
not have explained clearly yet.
Daniel
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