On Tue, 2006-03-28 at 14:23 -0500, Bob Picco wrote: > This could work but you need to be cautious because struct page for ia64 > isn't a power of 2. Also this would have to be done conditionally because > SPARSEMEM doesn't require it but of course VIRTUAL_MEM_MAP does. If it is done correctly it at least wont _hurt_ sparsemem. It should save a bunch of (probably cached) references into the mem_section[] array, along with a good number of arithmetic operations from each pfn_valid(). -- Dave - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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