Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:52140 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751882AbeDPVpY (ORCPT ); Mon, 16 Apr 2018 17:45:24 -0400 Date: Mon, 16 Apr 2018 17:45:22 -0400 From: "J. Bruce Fields" To: Christoph Hellwig Cc: Olga Kornievskaia , linux-nfs@vger.kernel.org Subject: Re: [PATCH v8 0/9] NFSD support for async COPY Message-ID: <20180416214522.GC2634@parsley.fieldses.org> References: <20180413170158.17589-1-kolga@netapp.com> <20180414072202.GA6514@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20180414072202.GA6514@infradead.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Sat, Apr 14, 2018 at 12:22:02AM -0700, Christoph Hellwig wrote: > What is the use case for adding all these crazy complications? Is there anything specific that you think is too complicated? I know you don't think server-to-server copy offload is worth the trouble, but I haven't seen you actually explain why (beyond just that it's more complicated). Is there some reason you think it won't actually be useful? --b.