From owner-cvs-src-old@FreeBSD.ORG  Sun Feb  8 20:23:49 2009
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 89222106567A
	for <cvs-src-old@freebsd.org>; Sun,  8 Feb 2009 20:23:49 +0000 (UTC)
	(envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 6A9738FC14
	for <cvs-src-old@freebsd.org>; Sun,  8 Feb 2009 20:23:49 +0000 (UTC)
	(envelope-from kib@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id n18KNnQK022141
	for <cvs-src-old@freebsd.org>; Sun, 8 Feb 2009 20:23:49 GMT
	(envelope-from kib@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n18KNnoJ022140
	for cvs-src-old@freebsd.org; Sun, 8 Feb 2009 20:23:49 GMT
	(envelope-from kib@repoman.freebsd.org)
Message-Id: <200902082023.n18KNnoJ022140@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	kib@repoman.freebsd.org using -f
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Sun, 8 Feb 2009 20:23:46 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/vm vm_fault.c vnode_pager.c vnode_pager.h
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 08 Feb 2009 20:23:55 -0000

kib         2009-02-08 20:23:46 UTC

  FreeBSD src repository

  Modified files:
    sys/vm               vm_fault.c vnode_pager.c vnode_pager.h 
  Log:
  SVN rev 188331 on 2009-02-08 20:23:46Z by kib
  
  Do not sleep for vnode lock while holding map lock in vm_fault. Try to
  acquire vnode lock for OBJT_VNODE object after map lock is dropped.
  Because we have the busy page(s) in the object, sleeping there would
  result in deadlock with vnode resize. Try to get lock without sleeping,
  and, if the attempt failed, drop the state, lock the vnode, and restart
  the fault handler from the start with already locked vnode.
  
  Because the vnode_pager_lock() function is inlined in vm_fault(),
  axe it.
  
  Based on suggestion by: alc
  Reviewed by:    tegge, alc
  Tested by:      pho
  
  Revision  Changes    Path
  1.243     +80 -43    src/sys/vm/vm_fault.c
  1.247     +0 -53     src/sys/vm/vnode_pager.c
  1.21      +0 -1      src/sys/vm/vnode_pager.h