Third, make sure that the root inode is known. If not,
and we know the inode number from the superblock,
- discover that inode and it's chunk.
+ discover that inode and its chunk.
Then, walk the incore inode-cluster tree.
link count for the inode that the entry points to.
After traversal, scan incore inode map for directories not
- reached. Go to first one and try and find it's root
+ reached. Go to first one and try and find its root
by following .. entries. Once at root, run traversal
algorithm. When algorithm terminates, move subtree
root inode to the orphanage. Repeat as necessary