btrfs: don't assume ordered sums to be 4 bytes

[sfrench/cifs-2.6.git] / fs / btrfs / ordered-data.h

diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 4c5991c3de14961b0a94a8b105fc382d49c0434f..5204171ea9622f8d73ff4ac649e5d8a828ead439 100644 (file)
--- 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);