From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753057AbbLJWde (ORCPT ); Thu, 10 Dec 2015 17:33:34 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:38841 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750865AbbLJWdc (ORCPT ); Thu, 10 Dec 2015 17:33:32 -0500 To: Mikulas Patocka Cc: "James E.J. Bottomley" , "Martin K. Petersen" , Jens Axboe , Mike Snitzer , Jonathan Brassow , dm-devel@redhat.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, Mike Christie Subject: Re: [PATCH 0/15] copy offload patches From: "Martin K. Petersen" Organization: Oracle Corporation References: Date: Thu, 10 Dec 2015 17:33:06 -0500 In-Reply-To: (Mikulas Patocka's message of "Thu, 10 Dec 2015 12:29:57 -0500 (EST)") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "Mikulas" == Mikulas Patocka writes: Mikulas, Mikulas> This patch series adds copy offload (the XCOPY command) to the Mikulas> block layer, SCSI subsystems and device mapper. Now that the VFS stuff appears to stabilize I agree it's a good time to revisit all this. I just merged the required VPD patches from Hannes so those will be in 4.5. I have a bunch of changes to the SCSI code that I worked on over the spring/summer based on a feedback from the array vendors after discussions we started at LSF/MM. Generally speaking, their comments didn't make things easier, nor prettier :( But your two bio approach is a requirement to accommodate those needs (token-based copy) so I'll work on consolidating your changes with mine. That said, we still need Mike Christie's patches to go in first. Mike: What's your status? I'm afraid I didn't get a chance to dig very deep in your series since it coincided with me scrambling to sort out SCSI for 4.4. Do you think there's a chance we could get your patches in shape for 4.5? Is there an up-to-date tree I can look at? -- Martin K. Petersen Oracle Linux Engineering