Btrfs: corruptions fixed

Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 72b52e1..2b0f98c 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -88,7 +88,7 @@
 int btrfs_write_and_wait_transaction(struct btrfs_trans_handle *trans,
 				     struct btrfs_root *root)
 {
-	filemap_write_and_wait(root->fs_info->sb->s_bdev->bd_inode->i_mapping);
+	filemap_write_and_wait(root->fs_info->btree_inode->i_mapping);
 	return 0;
 }