From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261252AbVAMRvO (ORCPT ); Thu, 13 Jan 2005 12:51:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261251AbVAMRtG (ORCPT ); Thu, 13 Jan 2005 12:49:06 -0500 Received: from fbxmetz.linbox.com ([81.56.128.63]:9622 "EHLO joebar.metz") by vger.kernel.org with ESMTP id S261265AbVAMRJw (ORCPT ); Thu, 13 Jan 2005 12:09:52 -0500 Message-ID: <41E6AB59.4000808@linbox.com> Date: Thu, 13 Jan 2005 18:09:45 +0100 From: Ludovic Drolez User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en-us, en, fr MIME-Version: 1.0 To: Alan Cox CC: Linux Kernel Mailing List Subject: Re: RAIT device driver feasibility References: <41E696F4.3070700@linbox.com> <1105630888.4664.54.camel@localhost.localdomain> In-Reply-To: <1105630888.4664.54.camel@localhost.localdomain> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alan Cox wrote: > On Iau, 2005-01-13 at 15:42, Ludovic Drolez wrote: > >>RAIT already exists in Amanda, in user space, but I'd like to see a generic >>kernel RAIT driver which could be used by any backup program. > > > Why kernel space - why not a user space shared library you can add to > other tape apps? A shared library which would override read(), write() in the program ? Why not... But do you think you can chain/bounce, ioctl(), read(), writes from a char driver to another ? Regards, -- Ludovic DROLEZ Linbox / Free&ALter Soft 152 rue de Grigy - Technopole Metz 2000 57070 METZ tel : 03 87 50 87 90 fax : 03 87 75 19 26