On Fri, Aug 14, 2015 at 02:52:15PM -0700, Dan Williams wrote: > The idea is that this memory is not meant to be available to the page > allocator and should not count as new memory capacity. We're only > hotplugging it to get struct page coverage. This might need a bigger audit of the max_pfn usages. I remember architectures using it as a decisions for using IOMMUs or similar. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>