K 10
svn:author
V 7
delphij
K 8
svn:date
V 27
2007-08-03T06:24:31.000000Z
K 7
svn:log
V 412
MFp4 - Refine locking to eliminate some potential race/panics:

 - Copy before testing a pointer.  This closes a race window.
 - Use msleep with the node interlock instead of tsleep.
 - Do proper locking around access to tn_vpstate.
 - Assert vnode VOP lock for dir_{atta,de}tach to capture
   inconsistent locking.

Suggested by:	kib
Submitted by:	delphij
Reviewed by:	Howard Su
Approved by:	re (tmpfs blanket)

END