From mboxrd@z Thu Jan 1 00:00:00 1970 From: "NeilBrown" Subject: Re: [dm-devel] REQUEST for new 'topology' metrics to be moved out of the 'queue' sysfs directory. Date: Fri, 26 Jun 2009 23:16:59 +1000 (EST) Message-ID: <7c458f2470811a877dd60203b9bbb7ac.squirrel@neil.brown.name> References: <19010.62951.886231.96622@notabene.brown> <125b48b7ffc99a496fbdd512f38cada5.squirrel@neil.brown.name> <20090625194015.GB31415@kernel.dk> <19012.49673.454853.975682@notabene.brown> <20090626125037.GO23611@kernel.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: "Martin K. Petersen" , "Mike Snitzer" , "Linus Torvalds" , "Alasdair G Kergon" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, linux-ide@vger.kernel.org, linux-fsdevel@vger.kernel.org, "device-mapper development" To: "Jens Axboe" Return-path: Received: from cantor.suse.de ([195.135.220.2]:58564 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754071AbZFZNRH (ORCPT ); Fri, 26 Jun 2009 09:17:07 -0400 In-Reply-To: <20090626125037.GO23611@kernel.dk> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Fri, June 26, 2009 10:50 pm, Jens Axboe wrote: > On Fri, Jun 26 2009, Neil Brown wrote: >> But for now, please please please can we revert the change which made >> 'queue' appear in md and dm devices, (and loop and ...) and put these >> generic values somewhere ... generic? > > No we cannot, not without a time machine. 2.6.30 is released, so it's > too late to revert things like that, even if we wanted. Drat... for some reason I was thinking that it only came in in 2.6.31-rc. However it is only documented in ABI/testing, not ABI/stable ... if there is any value in that distinction, then it should be possible to move it?? Well, maybe I'm too late. If I send you a patch to remove all those fields in 'queue' that are not relevant to md/dm (when the queue is used for an md/dm device) would that be OK ?? NeilBrown