Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932324AbWEAX34 (ORCPT ); Mon, 1 May 2006 19:29:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932325AbWEAX34 (ORCPT ); Mon, 1 May 2006 19:29:56 -0400 Received: from smtpout.mac.com ([17.250.248.173]:3308 "EHLO smtpout.mac.com") by vger.kernel.org with ESMTP id S932324AbWEAX3z (ORCPT ); Mon, 1 May 2006 19:29:55 -0400 In-Reply-To: <20060501203815.GE19423@kroah.com> References: <20060428112225.418cadd9.holzheu@de.ibm.com> <20060429075311.GB1886@kroah.com> <8A7D2F4D-5A05-4C93-B514-03268CAA9201@mac.com> <20060429215501.GA9870@kroah.com> <4237705F-E1B2-46CF-BE66-EFB77F68EC42@mac.com> <20060501203815.GE19423@kroah.com> Mime-Version: 1.0 (Apple Message framework v746.3) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <2DBA690E-B11A-478E-B2E0-0529F4CE45A9@mac.com> Cc: Michael Holzheu , akpm@osdl.org, schwidefsky@de.ibm.com, penberg@cs.helsinki.fi, ioe-lkml@rameria.de, joern@wohnheim.fh-wedel.de, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit From: Kyle Moffett Subject: Re: [PATCH] s390: Hypervisor File System Date: Mon, 1 May 2006 19:29:23 -0400 To: Greg KH X-Mailer: Apple Mail (2.746.3) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1261 Lines: 28 On May 1, 2006, at 16:38:15, Greg KH wrote: > On Sun, Apr 30, 2006 at 01:18:46AM -0400, Kyle Moffett wrote: >> On Apr 29, 2006, at 17:55:01, Greg KH wrote: >>> relayfs is for that. You can now put relayfs files in any ram >>> based file system (procfs, ramfs, sysfs, debugfs, etc.) >> >> But you can't twiddle relayfs with echo and cat; it's more suited >> to high-bandwidth transfers than anything else, no? > > Yes. So my question stands: What is the _recommended_ way to handle simple data types in low-bandwidth/frequency multiple-valued transactions to hardware? Examples include reading/modifying framebuffer settings (currently done through IOCTLS), s390 current state (up for discussion), etc. In these cases there needs to be an atomic snapshot or write of multiple values at the same time. Given the situation it would be _nice_ to use sysfs so the admin can do it by hand; makes things shell scriptable and reduces the number of binary compatibility issues. Cheers, Kyle Moffett - 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/