From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin K. Petersen" Subject: Re: MD and rotational attribute Date: Sun, 26 Feb 2012 19:18:12 -0500 Message-ID: References: <20120220122022.GA7466@x2.net.home> <20120227104230.125cb9e2@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20120227104230.125cb9e2@notabene.brown> (NeilBrown's message of "Mon, 27 Feb 2012 10:42:30 +1100") Sender: linux-kernel-owner@vger.kernel.org To: NeilBrown Cc: Karel Zak , linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, "Martin K.Petersen" List-Id: linux-raid.ids >>>>> "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