Certain configurations won't implicitly pull in <linux/pagemap.h> resulting in the following build error: mm/huge_memory.c: In function 'release_pte_page': mm/huge_memory.c:1697:2: error: implicit declaration of function 'unlock_page' [-Werror=implicit-function-declaration] mm/huge_memory.c: In function '__collapse_huge_page_isolate': mm/huge_memory.c:1757:3: error: implicit declaration of function 'trylock_page' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors Reported-by: David Daney <david.daney@xxxxxxxxxx> Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> --- mm/huge_memory.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index f0e5306..b5d4eb8 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -17,6 +17,7 @@ #include <linux/khugepaged.h> #include <linux/freezer.h> #include <linux/mman.h> +#include <linux/pagemap.h> #include <asm/tlb.h> #include <asm/pgalloc.h> #include "internal.h" -- 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>