diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index a85ac4e33436bc64f59b882e714d440a0cc90dac..aca8835c8c17f059a57c41c7efc3fd342b0133a1 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -963,7 +963,7 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb)
 /*
  * Retrieve work items and do the writeback they describe
  */
-long wb_do_writeback(struct bdi_writeback *wb, int force_wait)
+static long wb_do_writeback(struct bdi_writeback *wb, int force_wait)
 {
 	struct backing_dev_info *bdi = wb->bdi;
 	struct wb_writeback_work *work;
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index abfe11787af318a409c1a95b01b7a6db1ff4acb3..e0efffafcd3103f47c58d0681d769b8c06cbfed6 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -95,7 +95,6 @@ int try_to_writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
 void sync_inodes_sb(struct super_block *);
 long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages,
 				enum wb_reason reason);
-long wb_do_writeback(struct bdi_writeback *wb, int force_wait);
 void wakeup_flusher_threads(long nr_pages, enum wb_reason reason);
 void inode_wait_for_writeback(struct inode *inode);