Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756555AbYH2Lhz (ORCPT ); Fri, 29 Aug 2008 07:37:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753889AbYH2Lhr (ORCPT ); Fri, 29 Aug 2008 07:37:47 -0400 Received: from alto.filmlight.ltd.uk ([217.40.27.25]:17112 "HELO a.mx.filmlight.ltd.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752335AbYH2Lhr (ORCPT ); Fri, 29 Aug 2008 07:37:47 -0400 X-Greylist: delayed 399 seconds by postgrey-1.27 at vger.kernel.org; Fri, 29 Aug 2008 07:37:46 EDT Message-ID: <48B7DDF7.7060107@filmlight.ltd.uk> Date: Fri, 29 Aug 2008 12:31:03 +0100 From: Roger Willcocks User-Agent: Thunderbird 1.5.0.5 (X11/20060728) MIME-Version: 1.0 To: Tejun Heo CC: Miklos Szeredi , fuse-devel@lists.sourceforge.net, greg@kroah.com, linux-kernel@vger.kernel.org Subject: Re: [fuse-devel] [PATCH 5/7] FUSE: implement ioctl support References: <1219945263-21074-1-git-send-email-tj@kernel.org> <1219945263-21074-6-git-send-email-tj@kernel.org> <20080828175116.GB18461@kroah.com> <48B6E79E.6020702@kernel.org> <48B6E801.9080102@kernel.org> <48B6EBBD.6050406@kernel.org> <48B6EF98.4070008@kernel.org> <48B6FFB6.7000104@kernel.org> <48B75C94.7030604@kernel.org> In-Reply-To: <48B75C94.7030604@kernel.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 571 Lines: 17 One thing to bear in mind is the possibility of 32-bit client programs running on a 64-bit platform, so your user-space driver will need be be aware of the flavour of the client, and parse the ioctl arguments (and in particular, pointers) appropriately. That's true of a kernel implementation too, of course. -- Roger -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/