From owner-svn-src-user@FreeBSD.ORG  Sun Mar 17 20:40:31 2013
Return-Path: <owner-svn-src-user@FreeBSD.ORG>
Delivered-To: svn-src-user@freebsd.org
Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115])
 by hub.freebsd.org (Postfix) with ESMTP id A4581865;
 Sun, 17 Mar 2013 20:40:31 +0000 (UTC) (envelope-from alc@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 by mx1.freebsd.org (Postfix) with ESMTP id 9279B1BF;
 Sun, 17 Mar 2013 20:40:31 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.6/8.14.6) with ESMTP id r2HKeVe5043531;
 Sun, 17 Mar 2013 20:40:31 GMT (envelope-from alc@svn.freebsd.org)
Received: (from alc@localhost)
 by svn.freebsd.org (8.14.6/8.14.5/Submit) id r2HKeV73043530;
 Sun, 17 Mar 2013 20:40:31 GMT (envelope-from alc@svn.freebsd.org)
Message-Id: <201303172040.r2HKeV73043530@svn.freebsd.org>
From: Alan Cox <alc@FreeBSD.org>
Date: Sun, 17 Mar 2013 20:40:31 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-user@freebsd.org
Subject: svn commit: r248443 - user/attilio/vmcontention/sys/vm
X-SVN-Group: user
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-user@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: "SVN commit messages for the experimental &quot; user&quot;
 src tree" <svn-src-user.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-user>
List-Post: <mailto:svn-src-user@freebsd.org>
List-Help: <mailto:svn-src-user-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-user>,
 <mailto:svn-src-user-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 17 Mar 2013 20:40:31 -0000

Author: alc
Date: Sun Mar 17 20:40:31 2013
New Revision: 248443
URL: http://svnweb.freebsd.org/changeset/base/248443

Log:
  The calls to vm_radix_lookup_ge() by vm_reserv_alloc_{contig,page}() can
  be eliminated.  If the calls to vm_radix_lookup_le() return NULL, then
  the page at the head of the object's memq must be the page with the least
  pindex greater than the specified pindex.
  
  Reviewed by:	attilio
  Sponsored by:	EMC / Isilon Storage Division

Modified:
  user/attilio/vmcontention/sys/vm/vm_reserv.c

Modified: user/attilio/vmcontention/sys/vm/vm_reserv.c
==============================================================================
--- user/attilio/vmcontention/sys/vm/vm_reserv.c	Sun Mar 17 20:11:08 2013	(r248442)
+++ user/attilio/vmcontention/sys/vm/vm_reserv.c	Sun Mar 17 20:40:31 2013	(r248443)
@@ -352,7 +352,7 @@ vm_reserv_alloc_contig(vm_object_t objec
 			goto found;
 		msucc = TAILQ_NEXT(mpred, listq);
 	} else
-		msucc = vm_radix_lookup_ge(&object->rtree, pindex);
+		msucc = TAILQ_FIRST(&object->memq);
 	if (msucc != NULL) {
 		KASSERT(msucc->pindex > pindex,
 		    ("vm_reserv_alloc_page: pindex already allocated"));
@@ -507,7 +507,7 @@ vm_reserv_alloc_page(vm_object_t object,
 			goto found;
 		msucc = TAILQ_NEXT(mpred, listq);
 	} else
-		msucc = vm_radix_lookup_ge(&object->rtree, pindex);
+		msucc = TAILQ_FIRST(&object->memq);
 	if (msucc != NULL) {
 		KASSERT(msucc->pindex > pindex,
 		    ("vm_reserv_alloc_page: pindex already allocated"));