From owner-cvs-src-old@FreeBSD.ORG  Mon Oct 12 15:32:52 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 B0BA8106566B
	for <cvs-src-old@freebsd.org>; Mon, 12 Oct 2009 15:32:52 +0000 (UTC)
	(envelope-from attilio@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 9E3548FC1D
	for <cvs-src-old@freebsd.org>; Mon, 12 Oct 2009 15:32:52 +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 n9CFWqTf038504
	for <cvs-src-old@freebsd.org>; Mon, 12 Oct 2009 15:32:52 GMT
	(envelope-from attilio@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n9CFWqvf038503
	for cvs-src-old@freebsd.org; Mon, 12 Oct 2009 15:32:52 GMT
	(envelope-from attilio@repoman.freebsd.org)
Message-Id: <200910121532.n9CFWqvf038503@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	attilio@repoman.freebsd.org using -f
From: Attilio Rao <attilio@FreeBSD.org>
Date: Mon, 12 Oct 2009 15:32:00 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/kern kern_lock.c kern_rwlock.c kern_sx.c
 src/sys/sys rwlock.h sx.h
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, 12 Oct 2009 15:32:52 -0000

attilio     2009-10-12 15:32:00 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/kern             kern_lock.c kern_rwlock.c kern_sx.c 
    sys/sys              rwlock.h sx.h 
  Log:
  SVN rev 197981 on 2009-10-12 15:32:00Z by attilio
  
  MFC r197643, r197735:
  When releasing a read/shared lock we need to use a write memory barrier
  in order to avoid, on architectures which doesn't have strong ordered
  writes, CPU instructions reordering.
  
  Approved by:    re (kib)
  
  Revision   Changes    Path
  1.144.2.5  +3 -3      src/sys/kern/kern_lock.c
  1.48.2.5   +4 -3      src/sys/kern/kern_rwlock.c
  1.67.2.6   +4 -4      src/sys/kern/kern_sx.c
  1.21.2.2   +0 -7      src/sys/sys/rwlock.h
  1.42.2.2   +1 -8      src/sys/sys/sx.h