mm-gupc-tweaks-fix

fix x86_64 allnoconfig build

mm/gup.c: In function 'follow_page_pte':
mm/gup.c:100: error: implicit declaration of function 'trylock_page'
mm/gup.c:109: error: implicit declaration of function 'unlock_page'
mm/gup.c: In function '__get_user_pages':
mm/gup.c:467: error: implicit declaration of function 'flush_anon_page'
mm/gup.c:468: error: implicit declaration of function 'flush_dcache_page'

Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/mm/gup.c b/mm/gup.c
index af925a315829..5238000726fa 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -5,6 +5,7 @@
 
 #include <linux/hugetlb.h>
 #include <linux/mm.h>
+#include <linux/pagemap.h>
 #include <linux/rmap.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>