From owner-svn-src-head@FreeBSD.ORG  Mon May  3 07:08:16 2010
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 6EF521065670;
	Mon,  3 May 2010 07:08:16 +0000 (UTC) (envelope-from alc@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [69.147.83.44])
	by mx1.freebsd.org (Postfix) with ESMTP id 5F46B8FC16;
	Mon,  3 May 2010 07:08:16 +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 o4378G5e005694;
	Mon, 3 May 2010 07:08:16 GMT (envelope-from alc@svn.freebsd.org)
Received: (from alc@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id o4378GV3005691;
	Mon, 3 May 2010 07:08:16 GMT (envelope-from alc@svn.freebsd.org)
Message-Id: <201005030708.o4378GV3005691@svn.freebsd.org>
From: Alan Cox <alc@FreeBSD.org>
Date: Mon, 3 May 2010 07:08:16 +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: r207552 - head/sys/vm
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 03 May 2010 07:08:16 -0000

Author: alc
Date: Mon May  3 07:08:16 2010
New Revision: 207552
URL: http://svn.freebsd.org/changeset/base/207552

Log:
  The pages allocated by kmem_alloc_attr() and kmem_malloc() are unmanaged.
  Consequently, neither the page lock nor the page queues lock is needed to
  unwire and free them.

Modified:
  head/sys/vm/vm_contig.c
  head/sys/vm/vm_kern.c

Modified: head/sys/vm/vm_contig.c
==============================================================================
--- head/sys/vm/vm_contig.c	Mon May  3 07:00:50 2010	(r207551)
+++ head/sys/vm/vm_contig.c	Mon May  3 07:08:16 2010	(r207552)
@@ -268,11 +268,7 @@ retry:
 				i -= PAGE_SIZE;
 				m = vm_page_lookup(object, OFF_TO_IDX(offset +
 				    i));
-				vm_page_lock(m);
-				vm_page_lock_queues();
 				vm_page_free(m);
-				vm_page_unlock_queues();
-				vm_page_unlock(m);
 			}
 			VM_OBJECT_UNLOCK(object);
 			vm_map_delete(map, addr, addr + size);

Modified: head/sys/vm/vm_kern.c
==============================================================================
--- head/sys/vm/vm_kern.c	Mon May  3 07:00:50 2010	(r207551)
+++ head/sys/vm/vm_kern.c	Mon May  3 07:08:16 2010	(r207552)
@@ -380,12 +380,8 @@ retry:
 				i -= PAGE_SIZE;
 				m = vm_page_lookup(kmem_object,
 						   OFF_TO_IDX(offset + i));
-				vm_page_lock(m);
-				vm_page_lock_queues();
 				vm_page_unwire(m, 0);
 				vm_page_free(m);
-				vm_page_unlock_queues();
-				vm_page_unlock(m);
 			}
 			VM_OBJECT_UNLOCK(kmem_object);
 			vm_map_delete(map, addr, addr + size);