From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753430Ab2B0ASV (ORCPT ); Sun, 26 Feb 2012 19:18:21 -0500 Received: from rcsinet15.oracle.com ([148.87.113.117]:35082 "EHLO rcsinet15.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752381Ab2B0ASU (ORCPT ); Sun, 26 Feb 2012 19:18:20 -0500 To: NeilBrown Cc: Karel Zak , linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, "Martin K.Petersen" Subject: Re: MD and rotational attribute From: "Martin K. Petersen" Organization: Oracle References: <20120220122022.GA7466@x2.net.home> <20120227104230.125cb9e2@notabene.brown> Date: Sun, 26 Feb 2012 19:18:12 -0500 In-Reply-To: <20120227104230.125cb9e2@notabene.brown> (NeilBrown's message of "Mon, 27 Feb 2012 10:42:30 +1100") Message-ID: User-Agent: Gnus/5.110017 (No Gnus v0.17) Emacs/23.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Source-IP: ucsinet22.oracle.com [156.151.31.94] X-CT-RefId: str=0001.0A090206.4F4ACBC8.009C,ss=1,re=0.000,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "Neil" == NeilBrown writes: Neil, Neil> (I would say that the name 'rotational' is a bug - the issues here Neil> is really whether seek is fast or slow is it not??... but no Neil> matter). Both the ATA and SCSI specs use the term 'rotational' which I guess is how we ended up with that name. Neil> What do you think Martin? Should QUEUE_FLAG_NONROT move to Neil> queue_limits much like QUEUE_FLAG_CLUSTER did? Absolutely. I posted some patches converting both the nonrot and discard/secure discard queue flags a while back but they didn't go in. I'll freshen up the kit and resend... -- Martin K. Petersen Oracle Linux Engineering