From owner-svn-src-user@FreeBSD.ORG Thu Jun 25 22:55:02 2009 Return-Path: Delivered-To: svn-src-user@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 13F4C106564A; Thu, 25 Jun 2009 22:55:02 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.241]) by mx1.freebsd.org (Postfix) with ESMTP id A52CC8FC2F; Thu, 25 Jun 2009 22:55:01 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: by an-out-0708.google.com with SMTP id d14so253947and.13 for ; Thu, 25 Jun 2009 15:55:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type:content-transfer-encoding; bh=DYQUaClJIgG2YsfXg8nsaLLGsqKCr9ePCK5hDw4aCTc=; b=Jnj2cd75JpQJNaz6TQRgND36F/BDlCok0VmkZESJMvbjh8A2LzIqKyFLOB8RMF+nrd akdAqW52tnFXiNI9AZJ7rOrBeBbo6qdDShFhSxzzvs7O2iLwrfU9Ast7FUTZESvTPlC7 WYQtdiWMojUBFUD8DhVvfThvQ6Qg9cQqvXWpQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type :content-transfer-encoding; b=xbiW+RgIiA4rsfMy+EZgQlbsASQKDQDCwa7CLPOXEHfaok6u9pjFrRTiJ1yW3Mn1IR d8ingV04EU/mhFXjqxUMKkHnzN36pTKVUfCgsjYot8WaKCZ2VxcF3pV/6yxR+P0Nmcdp GO5QMIV3oU46ENTN8gZyUJboV8bIMM/OIKirQ= MIME-Version: 1.0 Sender: mat.macy@gmail.com Received: by 10.100.123.12 with SMTP id v12mr4126534anc.21.1245970498945; Thu, 25 Jun 2009 15:54:58 -0700 (PDT) In-Reply-To: <200906252159.n5PLxGjL065617@svn.freebsd.org> References: <200906252159.n5PLxGjL065617@svn.freebsd.org> Date: Thu, 25 Jun 2009 15:54:55 -0700 X-Google-Sender-Auth: e13413352df08ec8 Message-ID: <3c1674c90906251554r3c7fed3alb4bd7c6cf241a101@mail.gmail.com> From: Kip Macy To: src-committers@freebsd.org, svn-src-user@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Subject: Re: svn commit: r195007 - user/kmacy/releng_7_2_fcs/sys/amd64/amd64 X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Jun 2009 22:55:02 -0000 On Thu, Jun 25, 2009 at 2:59 PM, Kip Macy wrote: > Author: kmacy > Date: Thu Jun 25 21:59:16 2009 > New Revision: 195007 > URL: http://svn.freebsd.org/changeset/base/195007 > > Log: > =A0Parts of vm_page_free_toq need the vm page queue lock held. To avoid a > =A0LOR between the pmap lock and the vm page queue mutex in routines call= ing > =A0vm_page_free, we either need to aquire the vm page queue lock in advan= ce > =A0(diminishing the value of the vm page lock) or we need to to defer pag= e > =A0freeing until the pmap lock is held. This Defer until the pmap lock is not held.