From owner-svn-src-all@FreeBSD.ORG  Wed Apr 28 06:34:48 2010
Return-Path: <owner-svn-src-all@FreeBSD.ORG>
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 4719D106566B;
	Wed, 28 Apr 2010 06:34:48 +0000 (UTC) (envelope-from alc@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 3517E8FC14;
	Wed, 28 Apr 2010 06:34:48 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id o3S6YlmB048160;
	Wed, 28 Apr 2010 06:34:47 GMT (envelope-from alc@svn.freebsd.org)
Received: (from alc@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id o3S6YlpJ048158;
	Wed, 28 Apr 2010 06:34:47 GMT (envelope-from alc@svn.freebsd.org)
Message-Id: <201004280634.o3S6YlpJ048158@svn.freebsd.org>
From: Alan Cox <alc@FreeBSD.org>
Date: Wed, 28 Apr 2010 06:34:47 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r207308 - head/sys/vm
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
	user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
	<mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Apr 2010 06:34:48 -0000

Author: alc
Date: Wed Apr 28 06:34:47 2010
New Revision: 207308
URL: http://svn.freebsd.org/changeset/base/207308

Log:
  Setting PG_REFERENCED on a page at the end of vm_fault() is redundant since
  the page table entry's accessed bit is either preset by the immediately
  preceding call to pmap_enter() or by hardware (or software) upon return
  from vm_fault() when the faulting access is restarted.

Modified:
  head/sys/vm/vm_fault.c

Modified: head/sys/vm/vm_fault.c
==============================================================================
--- head/sys/vm/vm_fault.c	Wed Apr 28 05:33:59 2010	(r207307)
+++ head/sys/vm/vm_fault.c	Wed Apr 28 06:34:47 2010	(r207308)
@@ -924,7 +924,6 @@ vnode_locked:
 		vm_fault_prefault(fs.map->pmap, vaddr, fs.entry);
 	VM_OBJECT_LOCK(fs.object);
 	vm_page_lock_queues();
-	vm_page_flag_set(fs.m, PG_REFERENCED);
 
 	/*
 	 * If the page is not wired down, then put it where the pageout daemon