On Fri, Jul 24, 2015 at 10:08:25AM -0400, Paul Gortmaker wrote: > fs/proc/page.c:341:4: error: implicit declaration of function > 'pmdp_clear_young_notify' [-Werror=implicit-function-declaration] > fs/proc/page.c:347:4: error: implicit declaration of function > 'ptep_clear_young_notify' [-Werror=implicit-function-declaration] > cc1: some warnings being treated as errors > make[3]: *** [fs/proc/page.o] Error 1 > make[2]: *** [fs/proc] Error 2 My bad, sorry. It's already been reported by the kbuild-test-robot, see [linux-next:master 3983/4215] fs/proc/page.c:332:4: error: implicit declaration of function 'pmdp_clear_young_notify' The fix is: From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> Subject: [PATCH] mmu_notifier: add missing stubs for clear_young This is a compilation fix for !CONFIG_MMU_NOTIFIER. Fixes: mmu-notifier-add-clear_young-callback Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index a5b17137c683..a1a210d59961 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -471,6 +471,8 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) #define ptep_clear_flush_young_notify ptep_clear_flush_young #define pmdp_clear_flush_young_notify pmdp_clear_flush_young +#define ptep_clear_young_notify ptep_test_and_clear_young +#define pmdp_clear_young_notify pmdp_test_and_clear_young #define ptep_clear_flush_notify ptep_clear_flush #define pmdp_huge_clear_flush_notify pmdp_huge_clear_flush #define pmdp_huge_get_and_clear_notify pmdp_huge_get_and_clear -- 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>