From owner-cvs-all@FreeBSD.ORG  Sun Aug 15 20:54:25 2004
Return-Path: <owner-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 9C8D316A4CE; Sun, 15 Aug 2004 20:54:25 +0000 (GMT)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 7D02243D41; Sun, 15 Aug 2004 20:54:25 +0000 (GMT)
	(envelope-from alc@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.12.11/8.12.11) with ESMTP id i7FKsPX7012238;
	Sun, 15 Aug 2004 20:54:25 GMT
	(envelope-from alc@repoman.freebsd.org)
Received: (from alc@localhost)
	by repoman.freebsd.org (8.12.11/8.12.11/Submit) id i7FKsP3O012237;
	Sun, 15 Aug 2004 20:54:25 GMT
	(envelope-from alc)
Message-Id: <200408152054.i7FKsP3O012237@repoman.freebsd.org>
From: Alan Cox <alc@FreeBSD.org>
Date: Sun, 15 Aug 2004 20:54:25 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
	cvs-all@FreeBSD.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/alpha/alpha pmap.c
X-BeenThere: cvs-all@freebsd.org
X-Mailman-Version: 2.1.1
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: Sun, 15 Aug 2004 20:54:25 -0000

alc         2004-08-15 20:54:25 UTC

  FreeBSD src repository

  Modified files:
    sys/alpha/alpha      pmap.c 
  Log:
   - Make pmap_emulate_reference() MP and preemption safe.  Previously, it
     contained "sanity" checks that could be violated if another CPU modified
     the pmap between the emulation trap and locking the pmap in
     pmap_emulate_reference().  As a result, the pte could be inconsistent
     with the access that caused the emulation trap.  In such cases,
     pmap_emulate_reference() now flushes the current CPU's TLB entry and
     returns.
   - Make pmap_changebit() an inline function, reducing object code size.
  
  Revision  Changes    Path
  1.166     +20 -30    src/sys/alpha/alpha/pmap.c