From owner-cvs-src-old@FreeBSD.ORG  Thu May 14 03:27:15 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 49B9D106567A
	for <cvs-src-old@freebsd.org>; Thu, 14 May 2009 03:27:15 +0000 (UTC)
	(envelope-from jeff@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 34F318FC0C
	for <cvs-src-old@freebsd.org>; Thu, 14 May 2009 03:27:15 +0000 (UTC)
	(envelope-from jeff@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 n4E3RFsT023622
	for <cvs-src-old@freebsd.org>; Thu, 14 May 2009 03:27:15 GMT
	(envelope-from jeff@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n4E3RFHg023621
	for cvs-src-old@freebsd.org; Thu, 14 May 2009 03:27:15 GMT
	(envelope-from jeff@repoman.freebsd.org)
Message-Id: <200905140327.n4E3RFHg023621@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	jeff@repoman.freebsd.org using -f
From: Jeff Roberson <jeff@FreeBSD.org>
Date: Thu, 14 May 2009 03:24:22 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/kern kern_descrip.c sys_generic.c tty.c
 uipc_syscalls.c vfs_syscalls.c src/sys/sys filedesc.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: Thu, 14 May 2009 03:27:16 -0000

jeff        2009-05-14 03:24:22 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_descrip.c sys_generic.c tty.c 
                         uipc_syscalls.c vfs_syscalls.c 
    sys/sys              filedesc.h 
  Log:
  SVN rev 192080 on 2009-05-14 03:24:22Z by jeff
  
   - Implement a lockless file descriptor lookup algorithm in
     fget_unlocked().
   - Save old file descriptor tables created on expansion until
     the entire descriptor table is freed so that pointers may be
     followed without regard for expanders.
   - Mark the file zone as NOFREE so we may attempt to reference
     potentially freed files.
   - Convert several fget_locked() users to fget_unlocked().  This
     requires us to manage reference counts explicitly but reduces
     locking overhead in the common case.
  
  Revision  Changes    Path
  1.349     +88 -33    src/sys/kern/kern_descrip.c
  1.172     +4 -10     src/sys/kern/sys_generic.c
  1.314     +7 -4      src/sys/kern/tty.c
  1.277     +9 -16     src/sys/kern/uipc_syscalls.c
  1.476     +5 -14     src/sys/kern/vfs_syscalls.c
  1.79      +4 -0      src/sys/sys/filedesc.h