PERFORCE change 91350 for review

[Robert Watson]

http://perforce.freebsd.org/chv.cgi?CH=91350

Change 91350 by rwatson at rwatson_zoo on 2006/02/07 23:42:58

	Acquire vnode lock around VOP_GETATTR(), as required by VFS locking
	protocol.  We might simply want to acquire the vnode lock early in
	the record write routine, and hold it throughout, as it's also
	acquired later as part of vn_rdwr().
	
	Found by:	kris (bugmagnet)

Affected files ...

.. //depot/projects/trustedbsd/audit3/sys/security/audit/audit.c#12 edit

Differences ...

==== //depot/projects/trustedbsd/audit3/sys/security/audit/audit.c#12 (text+ko) ====

@@ -284,7 +284,9 @@
 	if (ret)
 		goto out;
 
+	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
 	ret = VOP_GETATTR(vp, &vattr, cred, td);
+	VOP_UNLOCK(vp, 0, td);
 	if (ret)
 		goto out;