From owner-freebsd-current@FreeBSD.ORG  Tue Jul 10 17:16:37 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: freebsd-current@freebsd.org
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 5E07216A41F
	for <freebsd-current@freebsd.org>; Tue, 10 Jul 2007 17:16:37 +0000 (UTC)
	(envelope-from ed@hoeg.nl)
Received: from palm.hoeg.nl (mx0.hoeg.nl [83.98.131.211])
	by mx1.freebsd.org (Postfix) with ESMTP id 26DFF13C457
	for <freebsd-current@freebsd.org>; Tue, 10 Jul 2007 17:16:36 +0000 (UTC)
	(envelope-from ed@hoeg.nl)
Received: by palm.hoeg.nl (Postfix, from userid 1000)
	id 73FC01CCCF; Tue, 10 Jul 2007 19:16:31 +0200 (CEST)
Date: Tue, 10 Jul 2007 19:16:31 +0200
From: Ed Schouten <ed@fxq.nl>
To: FreeBSD Current <freebsd-current@freebsd.org>
Message-ID: <20070710171631.GF55449@hoeg.nl>
References: <20070710165606.GE55449@hoeg.nl>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="8S1fMsFYqgBC+BN/"
Content-Disposition: inline
In-Reply-To: <20070710165606.GE55449@hoeg.nl>
User-Agent: Mutt/1.5.16 (2007-06-09)
Subject: D_NEEDGIANT usage in dev/io/iodev.c
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 10 Jul 2007 17:16:37 -0000


--8S1fMsFYqgBC+BN/
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hello,

The same applies to dev/io/iodev.c; according to sys/proc.h,
td->td_frame (used in ioopen() and ioclose()) is only accessed by
curthread, which means we can use it without acquiring Giant.

Yours,
--=20
 Ed Schouten <ed@fxq.nl>
 WWW: http://g-rave.nl/

--8S1fMsFYqgBC+BN/
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (FreeBSD)

iD8DBQFGk77v52SDGA2eCwURAsxKAJ43vMLhVXgMtKLnVOLUQtndyDmlJACfes6o
+eGhGhZgA323UuxJNO+y4mY=
=w9X/
-----END PGP SIGNATURE-----

--8S1fMsFYqgBC+BN/--