On Fri, 20 Apr 2007 09:58:52 +0100 David Howells <[email protected]> wrote: > > Because kmalloc() may be able to get us a smaller chunk of memory. Actually, > calling __get_free_pages() might be a better, and then release the excess > pages. Interesting, that rings a bell here. I wonder why we dont use this in alloc_large_system_hash(). (if __get_free_pages(GFP_ATOMIC, order) is used instead of alloc_bootmem() or __vmalloc()) We currently loose 1/4 of space on tcp hash table for example, because sizeof(inet_ehash_bucket) is not a power of 2. Is it really possible to allocate an order-10 page, then release part of it (say an order-8 subpage) ? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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