From owner-cvs-src-old@FreeBSD.ORG  Mon Aug 31 10:21:13 2009
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id E7D4D10656B8
	for <cvs-src-old@freebsd.org>; Mon, 31 Aug 2009 10:21:13 +0000 (UTC)
	(envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id D668C8FC12
	for <cvs-src-old@freebsd.org>; Mon, 31 Aug 2009 10:21:13 +0000 (UTC)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id n7VALDq4062828
	for <cvs-src-old@freebsd.org>; Mon, 31 Aug 2009 10:21:13 GMT
	(envelope-from kib@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n7VALD3R062827
	for cvs-src-old@freebsd.org; Mon, 31 Aug 2009 10:21:13 GMT
	(envelope-from kib@repoman.freebsd.org)
Message-Id: <200908311021.n7VALD3R062827@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	kib@repoman.freebsd.org using -f
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Mon, 31 Aug 2009 10:20:52 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/kern vfs_vnops.c
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 31 Aug 2009 10:21:14 -0000

kib         2009-08-31 10:20:52 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_vnops.c 
  Log:
  SVN rev 196692 on 2009-08-31 10:20:52Z by kib
  
  Make the mnt_writeopcount and mnt_secondary_writes counters,
  used by the suspension code, not greater then mnt_ref reference
  counter value. Increment mnt_ref together with write counter
  in vn_start_write()/ vn_start_secondary_write(), releasing in
  vn_finished_write/vn_finished_secondary_write().
  
  Since r186197, unmount code requires that no writers occured after all
  references are expired. We still could get write counter incremented
  for freed or reused struct mount, but it seems to be innocent, since
  corresponding vnode should be referenced and reclaimed then.
  
  Reported by:    pho (last half a year), erwin
  Reviewed by:    attilio
  Tested by:      pho, erwin
  MFC after:      1 week
  
  Revision  Changes    Path
  1.287     +4 -2      src/sys/kern/vfs_vnops.c