-extern struct file_operations btrfs_file_operations;
-int btrfs_drop_extents(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
- u64 start, u64 end, u64 locked_end,
- u64 inline_limit, u64 *hint_block, int drop_cache);
+extern const struct file_operations btrfs_file_operations;
+int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
+ u64 start, u64 end, u64 *hint_byte, int drop_cache);