Messages in this thread | | | Date | Sat, 03 Dec 2005 20:10:05 +0100 | From | Manfred Spraul <> | Subject | Re: [RFC] Use compound pages for higher order slab allocations. |
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Christoph Lameter wrote:
>+static inline struct page *virt_to_compound_page(const void *addr) >+{ >+ struct page * page = virt_to_page(addr); >+ >+ if (PageCompound(page)) >+ page = (struct page *)page_private(page); >+ > > This would end up in every kmem_cache_free/kfree call. Is it really worth the effort, are the high order allocation a problem? I'm against such a change without a clear proof that just using high order allocations is not possible.
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