1 files changed, 4 insertions, 4 deletions

diff --git a/fs/afs/write.c b/fs/afs/write.c
index a03b92a0fe1d..9a849ad3c489 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -8,7 +8,7 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
-
+#include <linux/backing-dev.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>
@@ -510,9 +510,9 @@ int afs_writepage(struct page *page, struct writeback_control *wbc)
 /*
  * write a region of pages back to the server
  */
-int afs_writepages_region(struct address_space *mapping,
-                          struct writeback_control *wbc,
-                          pgoff_t index, pgoff_t end, pgoff_t *_next)
+static int afs_writepages_region(struct address_space *mapping,
+                                 struct writeback_control *wbc,
+                                 pgoff_t index, pgoff_t end, pgoff_t *_next)
 {
         struct backing_dev_info *bdi = mapping->backing_dev_info;
         struct afs_writeback *wb;