[PATCH] Userland for VFS based Union Mount (V3)

[Valerie Aurora]

The VFS union mount patches require some changes to util-linux and
e2fsprogs to support the union mount option and the ext2 whiteout
feature flag.  We are not submitting them for formal review at this
time, but the patches are below for quick reference.  They are also
available in git repos linked to from the Union Mount HOWTO page:

http://valerieaurora.org/union/

-VAL