K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2008-11-03T14:11:06.285938Z
K 7
svn:log
V 295
In vfs_busy(), lockmgr() cannot legitimately sleep, because code checked
MNTK_UNMOUNT before, and mnt_mtx is used as interlock. vfs_busy() always
tries to obtain a shared lock on mnt_lock, the other user is unmount who
tries to drain it, setting MNTK_UNMOUNT before.

Approved by:	re (kensmith)

END