2 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 96f4094b706d..47feb2c4706a 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -57,6 +57,7 @@ struct bdi_writeback {
         struct list_head b_dirty;       /* dirty inodes */
         struct list_head b_io;          /* parked for writeback */
         struct list_head b_more_io;     /* parked for more writeback */
+        spinlock_t list_lock;           /* protects the b_* lists */
 };
 
 struct backing_dev_info {
@@ -106,6 +107,7 @@ int bdi_writeback_thread(void *data);
 int bdi_has_dirty_io(struct backing_dev_info *bdi);
 void bdi_arm_supers_timer(void);
 void bdi_wakeup_thread_delayed(struct backing_dev_info *bdi);
+void bdi_lock_two(struct bdi_writeback *wb1, struct bdi_writeback *wb2);
 
 extern spinlock_t bdi_lock;
 extern struct list_head bdi_list;
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 7df9026f7129..c2d957fb38d3 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -9,8 +9,6 @@
 
 struct backing_dev_info;
 
-extern spinlock_t inode_wb_list_lock;
-
 /*
  * fs/fs-writeback.c
  */