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Btrfs: create a logical->phsyical block number mapping scheme

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-04-11 15:53:25 -04:00
committed by David Woodhouse
parent 0bd93ba022
commit 7eccb903a8
7 changed files with 134 additions and 68 deletions
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8
fs/btrfs/transaction.c
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@@ -119,10 +119,10 @@ int btrfs_commit_tree_roots(struct btrfs_trans_handle *trans,
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 @@ int add_dirty_roots(struct btrfs_trans_handle *trans,
(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 @@ int add_dirty_roots(struct btrfs_trans_handle *trans,
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);