From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753963Ab1AJMoo (ORCPT ); Mon, 10 Jan 2011 07:44:44 -0500 Received: from metis.ext.pengutronix.de ([92.198.50.35]:33050 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753727Ab1AJMon (ORCPT ); Mon, 10 Jan 2011 07:44:43 -0500 Message-ID: <4D2AFF29.4060008@pengutronix.de> Date: Mon, 10 Jan 2011 13:44:25 +0100 From: Marc Kleine-Budde Organization: Pengutronix User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 MIME-Version: 1.0 To: Trond Myklebust CC: James Bottomley , Russell King - ARM Linux , Linus Torvalds , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?B?VXdlIA==?= =?UTF-8?B?S2xlaW5lLUvDtm5pZw==?= , Marc Kleine-Budde , linux-arm-kernel@lists.infradead.org, Parisc List , linux-arch@vger.kernel.org Subject: Re: still nfs problems [Was: Linux 2.6.37-rc8] References: <20110105210448.GM8638@n2100.arm.linux.org.uk> <1294262208.2952.4.camel@heimdal.trondhjem.org> <1294268808.2952.18.camel@heimdal.trondhjem.org> <1294270104.16957.73.camel@mulgrave.site> <1294335614.22825.154.camel@mulgrave.site> <1294336054.2905.1.camel@heimdal.trondhjem.org> <1294426405.2929.23.camel@heimdal.trondhjem.org> <20110107190229.GX31708@n2100.arm.linux.org.uk> <1294427467.4895.66.camel@mulgrave.site> <1294505384.4181.14.camel@heimdal.trondhjem.org> <1294528551.4181.19.camel@heimdal.trondhjem.org> In-Reply-To: <1294528551.4181.19.camel@heimdal.trondhjem.org> X-Enigmail-Version: 1.1.2 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigAA42886BC7558FC86E191B1B" X-SA-Exim-Connect-IP: 2001:6f8:1178:4:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigAA42886BC7558FC86E191B1B Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 01/09/2011 12:15 AM, Trond Myklebust wrote: > From 8b2e60cef5c65eef41ab61286f62dec6bfb1ac27 Mon Sep 17 00:00:00 2001 > From: Trond Myklebust > Date: Sat, 8 Jan 2011 17:45:38 -0500 > Subject: [PATCH] NFS: Don't use vm_map_ram() in readdir >=20 > vm_map_ram() is not available on NOMMU platforms, and causes trouble > on incoherrent architectures such as ARM when we access the page data > through both the direct and the virtual mapping. >=20 > The alternative is to use the direct mapping to access page data > for the case when we are not crossing a page boundary, but to copy > the data into a linear scratch buffer when we are accessing data > that spans page boundaries. >=20 > Signed-off-by: Trond Myklebust Tested-by: Marc Kleine-Budde =2E.on AT91 (armv5) regards, Marc --=20 Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | --------------enigAA42886BC7558FC86E191B1B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk0q/ywACgkQjTAFq1RaXHPKVACfSbwPgXZNF3YdnU/W6Auad80e /c0An3M92CG7Kp5W7OS1nHc/jof1yoS1 =1Bum -----END PGP SIGNATURE----- --------------enigAA42886BC7558FC86E191B1B--