K 10
svn:author
V 2
mm
K 8
svn:date
V 27
2011-08-05T11:12:50.343121Z
K 7
svn:log
V 497
The change in r224615 didn't take into account that vn_fullpath_global()
doesn't operate on locked vnode. This could cause a panic.

Fix by unlocking vnode, re-locking afterwards and verifying that it wasn't
renamed or deleted. To improve readability and reduce code size, move code
to a new static function vfs_verify_global_path().

In addition, fix missing giant unlock in unmount().

Reported by:	David Wolfskill <david@catwhisker.org>
Reviewed by:	kib
Approved by:	re (bz)
MFC after:	2 weeks

END