Btrfs: Add chunk uuids and update multi-device back references

[linux-2.6-block.git] / fs / btrfs / extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e49147e767df9bc11a491ade6e23fa02bac2f173..71f045c634932f1aa1e5e9026a0cec21c43a1694 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -35,10 +35,6 @@ static int finish_current_insert(struct btrfs_trans_handle *trans, struct
                                 btrfs_root *extent_root);
 static int del_pending_extents(struct btrfs_trans_handle *trans, struct
                               btrfs_root *extent_root);
-int btrfs_make_block_group(struct btrfs_trans_handle *trans,
-                          struct btrfs_root *root, u64 bytes_used,
-                          u64 type, u64 chunk_tree, u64 chunk_objectid,
-                          u64 size);
 
 
 static int cache_block_group(struct btrfs_root *root,
@@ -980,7 +976,6 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans,
                ret = get_state_private(block_group_cache, start, &ptr);
                if (ret)
                        break;
-
                cache = (struct btrfs_block_group_cache *)(unsigned long)ptr;
                err = write_one_cache_group(trans, root,
                                            path, cache);
@@ -1094,8 +1089,7 @@ printk("space info full %Lu\n", flags);
        BUG_ON(ret);
 
        ret = btrfs_make_block_group(trans, extent_root, 0, flags,
-                    extent_root->fs_info->chunk_root->root_key.objectid,
-                    start, num_bytes);
+                    BTRFS_FIRST_CHUNK_TREE_OBJECTID, start, num_bytes);
        BUG_ON(ret);
 
        return 0;
@@ -2782,7 +2776,7 @@ error:
 
 int btrfs_make_block_group(struct btrfs_trans_handle *trans,
                           struct btrfs_root *root, u64 bytes_used,
-                          u64 type, u64 chunk_tree, u64 chunk_objectid,
+                          u64 type, u64 chunk_objectid, u64 chunk_offset,
                           u64 size)
 {
        int ret;
@@ -2796,14 +2790,14 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
 
        cache = kmalloc(sizeof(*cache), GFP_NOFS);
        BUG_ON(!cache);
-       cache->key.objectid = chunk_objectid;
+       cache->key.objectid = chunk_offset;
        cache->key.offset = size;
        cache->cached = 0;
        cache->pinned = 0;
+
        btrfs_set_key_type(&cache->key, BTRFS_BLOCK_GROUP_ITEM_KEY);
        memset(&cache->item, 0, sizeof(cache->item));
        btrfs_set_block_group_used(&cache->item, bytes_used);
-       btrfs_set_block_group_chunk_tree(&cache->item, chunk_tree);
        btrfs_set_block_group_chunk_objectid(&cache->item, chunk_objectid);
        cache->flags = type;
        btrfs_set_block_group_flags(&cache->item, type);
@@ -2813,12 +2807,12 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
        BUG_ON(ret);
 
        bit = block_group_state_bits(type);
-       set_extent_bits(block_group_cache, chunk_objectid,
-                       chunk_objectid + size - 1,
+       set_extent_bits(block_group_cache, chunk_offset,
+                       chunk_offset + size - 1,
                        bit | EXTENT_LOCKED, GFP_NOFS);
-       set_state_private(block_group_cache, chunk_objectid,
-                         (unsigned long)cache);
 
+       set_state_private(block_group_cache, chunk_offset,
+                         (unsigned long)cache);
        ret = btrfs_insert_item(trans, extent_root, &cache->key, &cache->item,
                                sizeof(cache->item));
        BUG_ON(ret);