K 10
svn:author
V 8
mckusick
K 8
svn:date
V 27
2011-10-11T18:46:41.179680Z
K 7
svn:log
V 336
When unmounting a filesystem always wait for the vfs_busy lock to clear
so that if no vnodes in the filesystem are actively in use the unmount
will succeed rather than failing with EBUSY.

Reported by: Garrett Cooper
Reviewed by: Attilio Rao and Kostik Belousov
Tested by:   Garrett Cooper
PR:          kern/161016
MFC after:   3 weeks

END