Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759533AbaGXQYh (ORCPT ); Thu, 24 Jul 2014 12:24:37 -0400 Received: from mail-wg0-f43.google.com ([74.125.82.43]:36550 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759002AbaGXQYg (ORCPT ); Thu, 24 Jul 2014 12:24:36 -0400 Date: Thu, 24 Jul 2014 17:24:27 +0100 From: Sitsofe Wheeler To: Christoph Hellwig Cc: "Martin K. Petersen" , "K. Y. Srinivasan" , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, ohering@suse.com, apw@canonical.com, jasowang@redhat.com, jbottomley@parallels.com, linux-scsi@vger.kernel.org Subject: Re: [PATCH v2 3/3] [SCSI] Make LBP quirk skip lbpme checks tests Message-ID: <20140724162427.GA10962@sucs.org> References: <20140724122223.GA31798@sucs.org> <20140724153419.GA10372@infradead.org> <20140724153513.GA10752@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140724153513.GA10752@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 24, 2014 at 08:35:13AM -0700, Christoph Hellwig wrote: > On Thu, Jul 24, 2014 at 08:34:19AM -0700, Christoph Hellwig wrote: > > I agree - I'd like to pull in KY's simple fix as soon as I get a second > > review for it. > > Ok, looks like I just got that from Hannes. Let's see if there's more > to be done for the pass through case, but I'd rather wait for the next > window for that. There's nothing Linux can do for today's Hyper-V passthrough wrt to automatically turning on discard on my SATA SSD. Martin explained that vendors often disable UNMAP/WRITE SAME to DSM TRIM translation on purpose and/or have explicit device whitelists/blacklists for those devices they want to support. It could be that Microsoft are doing something similar (although it might be interesting to know how a Windows 2012 guest on Hyper-V handles things). -- Sitsofe | http://sucs.org/~sits/ -- 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/