1 files changed, 6 insertions, 2 deletions

diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 4c5991c3de14..5204171ea962 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -23,7 +23,7 @@ struct btrfs_ordered_sum {
         int len;
         struct list_head list;
         /* last field is a variable length array of csums */
-        u32 sums[];
+        u8 sums[];
 };
 
 /*
@@ -183,11 +183,15 @@ struct btrfs_ordered_extent *btrfs_lookup_ordered_range(
 int btrfs_ordered_update_i_size(struct inode *inode, u64 offset,
                                 struct btrfs_ordered_extent *ordered);
 int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u64 disk_bytenr,
-                           u32 *sum, int len);
+                           u8 *sum, int len);
 u64 btrfs_wait_ordered_extents(struct btrfs_root *root, u64 nr,
                                const u64 range_start, const u64 range_len);
 u64 btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, u64 nr,
                               const u64 range_start, const u64 range_len);
+void btrfs_lock_and_flush_ordered_range(struct extent_io_tree *tree,
+                                        struct btrfs_inode *inode, u64 start,
+                                        u64 end,
+                                        struct extent_state **cached_state);
 int __init ordered_data_init(void);
 void __cold ordered_data_exit(void);