K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2009-01-08T12:47:30.319279Z
K 7
svn:log
V 435
Do not call namei() while having another user-controlled vnode
locked. Lookup could attempt to recursively lock that vnode.

Do not call vn_start_write(V_WAIT) while vnode is locked, this may
result in a deadlock with suspension.

vfs_busy() the mountpoint before dropping vnode lock for vnode
that was used to look up the mountpoint, to prevent unmount in
between.

Reported and tested by:	pho
Reviewed by:	rwatson
MFC after:	3 weeks

END