Messages in this thread | | | Date | Fri, 04 May 2007 21:41:32 +0300 | From | Pekka Enberg <> | Subject | Re: [PATCH 08/40] mm: kmem_cache_objsize |
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Christoph Lameter wrote: > Hmmm... Maybe lets have > > unsigned kmem_estimate_pages(struct kmem_cache *slab_cache, int objects) > > which would calculate the worst case memory scenario for allocation the > number of indicated objects?
IIRC this looks more or less what Peter had initially. I don't like the API because there's no way for slab (perhaps this is different for slub) how many pages you really need due to per-node and per-cpu caches, etc.
It's better that the slab tells you what it actually knows and lets the callers figure out what a worst-case upper bound is.
Pekka
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