Btrfs: create a logical->phsyical block number mapping scheme
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index be9630d..d560831 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -80,7 +80,7 @@
int btrfs_inc_root_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root)
{
- return inc_block_ref(trans, root, root->node->b_blocknr, 1);
+ return inc_block_ref(trans, root, bh_blocknr(root->node), 1);
}
int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
@@ -563,7 +563,7 @@
WARN_ON(*level < 0);
WARN_ON(*level >= BTRFS_MAX_LEVEL);
- ret = lookup_block_ref(trans, root, path->nodes[*level]->b_blocknr,
+ ret = lookup_block_ref(trans, root, bh_blocknr(path->nodes[*level]),
1, &refs);
BUG_ON(ret);
if (refs > 1)
@@ -607,7 +607,7 @@
WARN_ON(*level < 0);
WARN_ON(*level >= BTRFS_MAX_LEVEL);
ret = btrfs_free_extent(trans, root,
- path->nodes[*level]->b_blocknr, 1, 1);
+ bh_blocknr(path->nodes[*level]), 1, 1);
btrfs_block_release(root, path->nodes[*level]);
path->nodes[*level] = NULL;
*level += 1;
@@ -635,7 +635,7 @@
return 0;
} else {
ret = btrfs_free_extent(trans, root,
- path->nodes[*level]->b_blocknr,
+ bh_blocknr(path->nodes[*level]),
1, 1);
BUG_ON(ret);
btrfs_block_release(root, path->nodes[*level]);