Btrfs: create a logical->phsyical block number mapping scheme
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index e15a072..3a15943 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -119,10 +119,10 @@
while(1) {
old_extent_block = btrfs_root_blocknr(&extent_root->root_item);
- if (old_extent_block == extent_root->node->b_blocknr)
+ if (old_extent_block == bh_blocknr(extent_root->node))
break;
btrfs_set_root_blocknr(&extent_root->root_item,
- extent_root->node->b_blocknr);
+ bh_blocknr(extent_root->node));
ret = btrfs_update_root(trans, tree_root,
&extent_root->root_key,
&extent_root->root_item);
@@ -176,7 +176,7 @@
(unsigned long)root->root_key.objectid,
BTRFS_ROOT_TRANS_TAG);
if (root->commit_root == root->node) {
- WARN_ON(root->node->b_blocknr !=
+ WARN_ON(bh_blocknr(root->node) !=
btrfs_root_blocknr(&root->root_item));
brelse(root->commit_root);
root->commit_root = NULL;
@@ -191,7 +191,7 @@
dirty->root = root;
root->root_key.offset = root->fs_info->generation;
btrfs_set_root_blocknr(&root->root_item,
- root->node->b_blocknr);
+ bh_blocknr(root->node));
err = btrfs_insert_root(trans, root->fs_info->tree_root,
&root->root_key,
&root->root_item);