From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751434AbXBMXR0 (ORCPT ); Tue, 13 Feb 2007 18:17:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751445AbXBMXR0 (ORCPT ); Tue, 13 Feb 2007 18:17:26 -0500 Received: from chilli.pcug.org.au ([203.10.76.44]:46061 "EHLO smtps.tip.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751434AbXBMXRZ (ORCPT ); Tue, 13 Feb 2007 18:17:25 -0500 Date: Wed, 14 Feb 2007 10:17:50 +1100 From: Stephen Rothwell To: James Bottomley Cc: Davide Libenzi , Andrew Morton , David Woodhouse , Linux Kernel Mailing List , linux-arch@vger.kernel.org Subject: Re: [patch] (2nd try) add epoll compat code to kernel/compat.c ... Message-Id: <20070214101750.587d42db.sfr@canb.auug.org.au> In-Reply-To: <1171377785.3382.5.camel@mulgrave.il.steeleye.com> References: <20070213153525.c1440cff.sfr@canb.auug.org.au> <1171377785.3382.5.camel@mulgrave.il.steeleye.com> X-Mailer: Sylpheed version 2.3.0beta5 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA1"; boundary="Signature=_Wed__14_Feb_2007_10_17_50_+1100_EGw4dzWrm8xspTG9" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --Signature=_Wed__14_Feb_2007_10_17_50_+1100_EGw4dzWrm8xspTG9 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 7bit On Tue, 13 Feb 2007 08:43:05 -0600 James Bottomley wrote: > > Not for parisc at the instruction level. In narrow mode (32 bit mode), > a u64 load has to be done by two 32 bit loads which gives it a 4 byte > alignment requirement. In wide mode (64 bit mode) the 64 bit load > instruction explicitly requires 8 byte alignment, so our u64 alignment > requirements are different. However, this is from the machine code > point of view. I can't say that gcc doesn't enforce an artificial 8 > byte alignment of u64 in narrow mode, so I'll defer to the gcc experts > on that one. Of course, gcc enforced alignment is all we really care about. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/ --Signature=_Wed__14_Feb_2007_10_17_50_+1100_EGw4dzWrm8xspTG9 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFF0kcjFdBgD/zoJvwRAlOxAJ9Zp2wLv3Krwmp0tdLKLYSazx6LpQCgnhDE ieYwVd59342n48KEwF1FvW4= =eb6x -----END PGP SIGNATURE----- --Signature=_Wed__14_Feb_2007_10_17_50_+1100_EGw4dzWrm8xspTG9--