From owner-svn-src-all@freebsd.org  Fri Oct  9 03:38:59 2015
Return-Path: <owner-svn-src-all@freebsd.org>
Delivered-To: svn-src-all@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id DC71F9D2B9C;
 Fri,  9 Oct 2015 03:38:59 +0000 (UTC) (envelope-from alc@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id AA08C1CF4;
 Fri,  9 Oct 2015 03:38:59 +0000 (UTC) (envelope-from alc@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id t993cw1Q023248;
 Fri, 9 Oct 2015 03:38:58 GMT (envelope-from alc@FreeBSD.org)
Received: (from alc@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id t993cwpX023247;
 Fri, 9 Oct 2015 03:38:58 GMT (envelope-from alc@FreeBSD.org)
Message-Id: <201510090338.t993cwpX023247@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: alc set sender to alc@FreeBSD.org
 using -f
From: Alan Cox <alc@FreeBSD.org>
Date: Fri, 9 Oct 2015 03:38:58 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r289059 - head/sys/vm
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.20
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: <https://lists.freebsd.org/mailman/options/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: <https://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 09 Oct 2015 03:39:00 -0000

Author: alc
Date: Fri Oct  9 03:38:58 2015
New Revision: 289059
URL: https://svnweb.freebsd.org/changeset/base/289059

Log:
  Exploit r288122 to avoid pointlessly enqueueing a page that is about to be
  freed.
  
  Submitted by:	kmacy
  Differential Revision:	https://reviews.freebsd.org/D1674

Modified:
  head/sys/vm/vm_glue.c

Modified: head/sys/vm/vm_glue.c
==============================================================================
--- head/sys/vm/vm_glue.c	Thu Oct  8 23:27:45 2015	(r289058)
+++ head/sys/vm/vm_glue.c	Fri Oct  9 03:38:58 2015	(r289059)
@@ -418,7 +418,7 @@ vm_thread_stack_dispose(vm_object_t ksob
 		if (m == NULL)
 			panic("vm_thread_dispose: kstack already missing?");
 		vm_page_lock(m);
-		vm_page_unwire(m, PQ_INACTIVE);
+		vm_page_unwire(m, PQ_NONE);
 		vm_page_free(m);
 		vm_page_unlock(m);
 	}