Update the Ext3 converter

The main changes in this patch are adding chunk handing and data relocation
ability. In the last step of conversion, the converter relocates data in system
chunk and move chunk tree into system chunk. In the rollback process, the
converter remove chunk tree from system chunk and copy data back.

Regards
YZ
---

1 files changed, 5 insertions, 0 deletions

diff --git a/volumes.h b/volumes.h
index 9aec0e3d..7ccd0eed 100644
--- a/volumes.h
+++ b/volumes.h
@@ -108,6 +108,8 @@ int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
 int btrfs_add_device(struct btrfs_trans_handle *trans,
 		     struct btrfs_root *root,
 		     struct btrfs_device *device);
+int btrfs_update_device(struct btrfs_trans_handle *trans,
+			struct btrfs_device *device);
 int btrfs_scan_one_device(int fd, const char *path,
 			  struct btrfs_fs_devices **fs_devices_ret,
 			  u64 *total_devs, u64 super_offset);
@@ -115,4 +117,7 @@ int btrfs_num_copies(struct btrfs_mapping_tree *map_tree, u64 logical, u64 len);
 int btrfs_bootstrap_super_map(struct btrfs_mapping_tree *map_tree,
 			      struct btrfs_fs_devices *fs_devices);
 struct list_head *btrfs_scanned_uuids(void);
+int btrfs_add_system_chunk(struct btrfs_trans_handle *trans,
+			   struct btrfs_root *root, struct btrfs_key *key,
+			   struct btrfs_chunk *chunk, int item_size);
 #endif