From owner-cvs-all@FreeBSD.ORG  Mon Aug 15 06:01:37 2005
Return-Path: <owner-cvs-all@FreeBSD.ORG>
X-Original-To: cvs-all@FreeBSD.org
Delivered-To: cvs-all@FreeBSD.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 7F74C16A41F;
	Mon, 15 Aug 2005 06:01:37 +0000 (GMT)
	(envelope-from ssouhlal@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 5106343D48;
	Mon, 15 Aug 2005 06:01:37 +0000 (GMT)
	(envelope-from ssouhlal@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id j7F61bV1021034;
	Mon, 15 Aug 2005 06:01:37 GMT
	(envelope-from ssouhlal@repoman.freebsd.org)
Received: (from ssouhlal@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id j7F61bdi021033;
	Mon, 15 Aug 2005 06:01:37 GMT (envelope-from ssouhlal)
Message-Id: <200508150601.j7F61bdi021033@repoman.freebsd.org>
From: Suleiman Souhlal <ssouhlal@FreeBSD.org>
Date: Mon, 15 Aug 2005 06:01:37 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: RELENG_6
Cc: 
Subject: cvs commit: src/sys/kern vfs_subr.c src/sys/sys mount.h vnode.h
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: CVS commit messages for the entire tree <cvs-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-all>
List-Post: <mailto:cvs-all@freebsd.org>
List-Help: <mailto:cvs-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-all>,
	<mailto:cvs-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 15 Aug 2005 06:01:37 -0000

ssouhlal    2005-08-15 06:01:37 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/kern             vfs_subr.c 
    sys/sys              mount.h vnode.h 
  Log:
  MFC:
    Holding a vnode doesn't prevent v_mount from disappearing (when the
    vnode is inactivated), possibly leading to a NULL dereference when
    checking if the mount wants knotes to be activated in the VOP hooks.
    So, we add a new vnode flag VV_NOKNOTE that is only set in  getnewvnode(),
    if necessary, and check it when activating knotes.
    Since the flags are not erased when a vnode is being held, we can safely
    read them.
  
  Approved by:    re (kensmith)
  
  Revision   Changes    Path
  1.635.2.1  +2 -0      src/sys/kern/vfs_subr.c
  1.197.2.1  +2 -4      src/sys/sys/mount.h
  1.304.2.1  +1 -0      src/sys/sys/vnode.h