1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/raid/md.h b/include/linux/raid/md.h
index ffa316ce4dc8..13e7c4b62367 100644
--- a/include/linux/raid/md.h
+++ b/include/linux/raid/md.h
@@ -66,8 +66,10 @@
  *     and major_version/minor_version accordingly
  * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT
  *     in the super status byte
+ * >=3 means that bitmap superblock version 4 is supported, which uses
+ *     little-ending representation rather than host-endian
  */
-#define MD_PATCHLEVEL_VERSION           2
+#define MD_PATCHLEVEL_VERSION           3
 
 extern int register_md_personality (int p_num, mdk_personality_t *p);
 extern int unregister_md_personality (int p_num);
@@ -87,6 +89,7 @@ extern void md_print_devices (void);
 
 extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
                            sector_t sector, int size, struct page *page);
+extern void md_super_wait(mddev_t *mddev);
 extern int sync_page_io(struct block_device *bdev, sector_t sector, int size,
                         struct page *page, int rw);