K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2015-07-09T15:06:58.217591Z
K 7
svn:log
V 219
vfs: avoid spurious vref/vrele for absolute lookups

namei used to vref fd_cdir, which was immediatley vrele'd on entry to
the loop.

Check for absolute lookup and vref the right vnode the first time.

Reviewed by:	kib

END