On Wed, May 08, 2013 at 10:52:37AM +0100, Steve Capper wrote: > All Transparent Huge Pages are allocated by the buddy allocator. > > A compile time check is in place that fails when the order of a > transparent huge page is too large to be allocated by the buddy > allocator. Unfortunately that compile time check passes when: > HPAGE_PMD_ORDER == MAX_ORDER > ( which is incorrect as the buddy allocator can only allocate > memory of order strictly less than MAX_ORDER. ) It looks confusing to me. Shouldn't we fix what MAX_ORDER means instead? -- Kirill A. Shutemov -- 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>