From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41C20C433ED for ; Wed, 12 May 2021 02:21:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 173AD616EA for ; Wed, 12 May 2021 02:21:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229952AbhELCW3 (ORCPT ); Tue, 11 May 2021 22:22:29 -0400 Received: from mail-pg1-f181.google.com ([209.85.215.181]:43909 "EHLO mail-pg1-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229934AbhELCW3 (ORCPT ); Tue, 11 May 2021 22:22:29 -0400 Received: by mail-pg1-f181.google.com with SMTP id k15so4344830pgb.10; Tue, 11 May 2021 19:21:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=daaDmlZfNtYf87e9KKZ0tzPnbye9JR8o5YOaGDdi4mk=; b=Opqe41XFmYsRx5pv4ZbRoFOXCHq6PmzEBBhRppPD0BsVYgkGeKIZY1JrmQAi5BcUnF aqq+eJ3ID/P+eZeSjCaOlD5+FLFdRDpboWtcG6QRAgBiMdnj6rX3Ol3YBaQEBF0Q5R59 tmT3dcRimIPRra+EumbJWL4+4oEkKn+UGkJYn0Qb/4cXyt9hcu2k4NZ0c7LT28h9YfQw qnx1WUw1I3JYyxG7uaBhaBiBwUQr32Gw9kHQxwPPSs30uwUcPlLnU5DGS63Z5b0hq45S 98Do/PC2i1BvcOVvzqdaO3EZXo1VMNerJ24RdxwcSrsVjCvFjyZ5RoetoTIQMqOtWhJ7 x+YQ== X-Gm-Message-State: AOAM530qJFHPE885M5X9fWAOMlZKOwEinmN7glGJLbBrIB8MJAEkKxpU pMuwDF2jEzlW3Yh4/ta9+Mc= X-Google-Smtp-Source: ABdhPJxg29un7hemzeM5RTmLf4VW113rEN7QX/F07mMfJ5zwt/qmJ20P8JnH+74H64FqIu6d5/qcuA== X-Received: by 2002:aa7:8e85:0:b029:28f:2620:957e with SMTP id a5-20020aa78e850000b029028f2620957emr33862188pfr.40.1620786080715; Tue, 11 May 2021 19:21:20 -0700 (PDT) Received: from ?IPv6:2601:647:4000:d7:76b9:3c77:17e3:3073? ([2601:647:4000:d7:76b9:3c77:17e3:3073]) by smtp.gmail.com with ESMTPSA id w74sm14613953pfc.173.2021.05.11.19.21.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 11 May 2021 19:21:18 -0700 (PDT) Subject: Re: [LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload To: Chaitanya Kulkarni , "linux-block@vger.kernel.org" , "linux-scsi@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "dm-devel@redhat.com" , "lsf-pc@lists.linux-foundation.org" Cc: "axboe@kernel.dk" , "msnitzer@redhat.com" , "martin.petersen@oracle.com" , "roland@purestorage.com" , "mpatocka@redhat.com" , "hare@suse.de" , "kbusch@kernel.org" , "rwheeler@redhat.com" , "hch@lst.de" , "Frederick.Knight@netapp.com" , "zach.brown@ni.com" , "osandov@fb.com" References: From: Bart Van Assche Message-ID: <4b8985f1-8a94-d611-e9fb-1b5e32a19f1e@acm.org> Date: Tue, 11 May 2021 19:21:16 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 5/10/21 5:15 PM, Chaitanya Kulkarni wrote: > * What we will discuss in the proposed session ? > ----------------------------------------------------------------------- > > I'd like to propose a session to go over this topic to understand :- > > 1. What are the blockers for Copy Offload implementation ? > 2. Discussion about having a file system interface. > 3. Discussion about having right system call for user-space. > 4. What is the right way to move this work forward ? > 5. How can we help to contribute and move this work forward ? Are there any blockers left? My understanding is that what is needed is to implement what has been proposed recently (https://lore.kernel.org/linux-nvme/yq1blf3smcl.fsf@ca-mkp.ca.oracle.com/). Anyway, I'm interested to attend the conversation about this topic. Thanks, Bart.