Hi Andrew, After merging the akpm-current tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: In file included from include/linux/mm.h:897:0, from include/linux/mman.h:4, from arch/powerpc/kernel/asm-offsets.c:22: include/linux/vmstat.h: In function '__count_vm_event': include/linux/vmstat.h:36:2: error: implicit declaration of function 'raw_cpu_inc' [-Werror=implicit-function-declaration] raw_cpu_inc(vm_event_states.event[item]); ^ include/linux/vmstat.h: In function '__count_vm_events': include/linux/vmstat.h:46:2: error: implicit declaration of function 'raw_cpu_add' [-Werror=implicit-function-declaration] raw_cpu_add(vm_event_states.event[item], delta); ^ Caused by commit "vmstat: use raw_cpu_ops to avoid false positives on preemption checks". My kernel (even going back to v3.13) has no reference to raw_cpu_inc/add ... missed patch? Ah, ha percpu-add-raw_cpu_ops.patch etc are in the later part of the series :-( I just reverted "vmstat: use raw_cpu_ops to avoid false positives on preemption checks" and "vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix" for today. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au