Hi Andrew, After merging the akpm-current tree, today's linux-next build (arm multi_v7_defconfig) failed like this: In file included from mm/shmem.c:61:0: include/linux/swapops.h: In function 'is_swap_pte': include/linux/swapops.h:57:2: error: implicit declaration of function 'pte_present_nonuma' [-Werror=implicit-function-declaration] And a couple more similar. Caused by commit 851fe3337768 ("x86: define _PAGE_NUMA by reusing software bits on the PMD and PTE levels"). I have reverted this commit (and 7cb1c1eb682e "x86: define _PAGE_NUMA by reusing software bits on the PMD and PTE levels -fix") for today and wonder how many other architectures would be broken by this? Everything else with CONFIG_MMU set? -- Cheers, Stephen Rothwell sfr@canb.auug.org.au